diff options
Diffstat (limited to 'target')
20 files changed, 22735 insertions, 22807 deletions
diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/Kconfig b/target/linux/cns3xxx/files/drivers/usb/dwc/Kconfig new file mode 100644 index 0000000000..be1b7f6fb7 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/Kconfig @@ -0,0 +1,44 @@ +# +# USB Dual Role (OTG-ready) Controller Drivers +# for silicon based on Synopsys DesignWare IP +# + +comment "Enable Host or Gadget support for DesignWare OTG controller" +depends on !USB && USB_GADGET=n + +config USB_DWC_OTG + tristate "Synopsys DWC OTG Controller" + depends on USB + help + This driver provides USB Device Controller support for the + Synopsys DesignWare USB OTG Core used on the Cavium CNS34xx SOC. + +config DWC_DEBUG + bool "Enable DWC Debugging" + depends on USB_DWC_OTG + default n + help + Enable DWC driver debugging + +choice + prompt "DWC Mode Selection" + depends on USB_DWC_OTG + default DWC_HOST_ONLY + help + Select the DWC Core in OTG, Host only, or Device only mode. + +config DWC_HOST_ONLY + bool "DWC Host Only Mode" + +config DWC_OTG_MODE + bool "DWC OTG Mode" + select USB_GADGET + select USB_GADGET_SELECTED + +config DWC_DEVICE_ONLY + bool "DWC Device Only Mode" + select USB_GADGET + select USB_GADGET_SELECTED + +endchoice + diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/Makefile b/target/linux/cns3xxx/files/drivers/usb/dwc/Makefile new file mode 100644 index 0000000000..58f3db75c7 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/Makefile @@ -0,0 +1,26 @@ +# +# Makefile for DWC_otg Highspeed USB controller driver +# + +EXTRA_CFLAGS += -DDWC_HS_ELECT_TST +#EXTRA_CFLAGS += -Dlinux -DDWC_HS_ELECT_TST +#EXTRA_CFLAGS += -DDWC_EN_ISOC + +ifneq ($(CONFIG_DWC_HOST_ONLY),) +EXTRA_CFLAGS += -DDWC_HOST_ONLY +endif + +ifneq ($(CONFIG_DWC_DEVICE_ONLY),) +EXTRA_CFLAGS += -DDWC_DEVICE_ONLY +endif + +ifneq ($(CONFIG_DWC_DEBUG),) +EXTRA_CFLAGS += -DDEBUG +endif + +obj-$(CONFIG_USB_DWC_OTG) := dwc_otg.o + +dwc_otg-objs := otg_driver.o otg_attr.o +dwc_otg-objs += otg_cil.o otg_cil_intr.o +dwc_otg-objs += otg_pcd.o otg_pcd_intr.o +dwc_otg-objs += otg_hcd.o otg_hcd_intr.o otg_hcd_queue.o diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_attr.c b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_attr.c new file mode 100644 index 0000000000..343acd2517 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_attr.c @@ -0,0 +1,886 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_attr.c $ + * $Revision: #31 $ + * $Date: 2008/07/15 $ + * $Change: 1064918 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +/** @file + * + * The diagnostic interface will provide access to the controller for + * bringing up the hardware and testing. The Linux driver attributes + * feature will be used to provide the Linux Diagnostic + * Interface. These attributes are accessed through sysfs. + */ + +/** @page "Linux Module Attributes" + * + * The Linux module attributes feature is used to provide the Linux + * Diagnostic Interface. These attributes are accessed through sysfs. + * The diagnostic interface will provide access to the controller for + * bringing up the hardware and testing. + + + The following table shows the attributes. + <table> + <tr> + <td><b> Name</b></td> + <td><b> Description</b></td> + <td><b> Access</b></td> + </tr> + + <tr> + <td> mode </td> + <td> Returns the current mode: 0 for device mode, 1 for host mode</td> + <td> Read</td> + </tr> + + <tr> + <td> hnpcapable </td> + <td> Gets or sets the "HNP-capable" bit in the Core USB Configuraton Register. + Read returns the current value.</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> srpcapable </td> + <td> Gets or sets the "SRP-capable" bit in the Core USB Configuraton Register. + Read returns the current value.</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> hnp </td> + <td> Initiates the Host Negotiation Protocol. Read returns the status.</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> srp </td> + <td> Initiates the Session Request Protocol. Read returns the status.</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> buspower </td> + <td> Gets or sets the Power State of the bus (0 - Off or 1 - On)</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> bussuspend </td> + <td> Suspends the USB bus.</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> busconnected </td> + <td> Gets the connection status of the bus</td> + <td> Read</td> + </tr> + + <tr> + <td> gotgctl </td> + <td> Gets or sets the Core Control Status Register.</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> gusbcfg </td> + <td> Gets or sets the Core USB Configuration Register</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> grxfsiz </td> + <td> Gets or sets the Receive FIFO Size Register</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> gnptxfsiz </td> + <td> Gets or sets the non-periodic Transmit Size Register</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> gpvndctl </td> + <td> Gets or sets the PHY Vendor Control Register</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> ggpio </td> + <td> Gets the value in the lower 16-bits of the General Purpose IO Register + or sets the upper 16 bits.</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> guid </td> + <td> Gets or sets the value of the User ID Register</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> gsnpsid </td> + <td> Gets the value of the Synopsys ID Regester</td> + <td> Read</td> + </tr> + + <tr> + <td> devspeed </td> + <td> Gets or sets the device speed setting in the DCFG register</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> enumspeed </td> + <td> Gets the device enumeration Speed.</td> + <td> Read</td> + </tr> + + <tr> + <td> hptxfsiz </td> + <td> Gets the value of the Host Periodic Transmit FIFO</td> + <td> Read</td> + </tr> + + <tr> + <td> hprt0 </td> + <td> Gets or sets the value in the Host Port Control and Status Register</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> regoffset </td> + <td> Sets the register offset for the next Register Access</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> regvalue </td> + <td> Gets or sets the value of the register at the offset in the regoffset attribute.</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> remote_wakeup </td> + <td> On read, shows the status of Remote Wakeup. On write, initiates a remote + wakeup of the host. When bit 0 is 1 and Remote Wakeup is enabled, the Remote + Wakeup signalling bit in the Device Control Register is set for 1 + milli-second.</td> + <td> Read/Write</td> + </tr> + + <tr> + <td> regdump </td> + <td> Dumps the contents of core registers.</td> + <td> Read</td> + </tr> + + <tr> + <td> spramdump </td> + <td> Dumps the contents of core registers.</td> + <td> Read</td> + </tr> + + <tr> + <td> hcddump </td> + <td> Dumps the current HCD state.</td> + <td> Read</td> + </tr> + + <tr> + <td> hcd_frrem </td> + <td> Shows the average value of the Frame Remaining + field in the Host Frame Number/Frame Remaining register when an SOF interrupt + occurs. This can be used to determine the average interrupt latency. Also + shows the average Frame Remaining value for start_transfer and the "a" and + "b" sample points. The "a" and "b" sample points may be used during debugging + bto determine how long it takes to execute a section of the HCD code.</td> + <td> Read</td> + </tr> + + <tr> + <td> rd_reg_test </td> + <td> Displays the time required to read the GNPTXFSIZ register many times + (the output shows the number of times the register is read). + <td> Read</td> + </tr> + + <tr> + <td> wr_reg_test </td> + <td> Displays the time required to write the GNPTXFSIZ register many times + (the output shows the number of times the register is written). + <td> Read</td> + </tr> + + </table> + + Example usage: + To get the current mode: + cat /sys/devices/lm0/mode + + To power down the USB: + echo 0 > /sys/devices/lm0/buspower + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/errno.h> +#include <linux/types.h> +#include <linux/stat.h> /* permission constants */ +#include <linux/version.h> + +#include <asm/sizes.h> +#include <asm/io.h> +#include <asm/sizes.h> + +#include "otg_plat.h" +#include "otg_attr.h" +#include "otg_driver.h" +#include "otg_pcd.h" +#include "otg_hcd.h" + +/* + * MACROs for defining sysfs attribute + */ +#define DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ +static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \ +{ \ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t val; \ + val = dwc_read_reg32 (_addr_); \ + val = (val & (_mask_)) >> _shift_; \ + return sprintf (buf, "%s = 0x%x\n", _string_, val); \ +} +#define DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ +static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t set = simple_strtoul(buf, NULL, 16); \ + uint32_t clear = set; \ + clear = ((~clear) << _shift_) & _mask_; \ + set = (set << _shift_) & _mask_; \ + dev_dbg(_dev, "Storing Address=0x%08x Set=0x%08x Clear=0x%08x\n", (uint32_t)_addr_, set, clear); \ + dwc_modify_reg32(_addr_, clear, set); \ + return count; \ +} + +/* + * MACROs for defining sysfs attribute for 32-bit registers + */ +#define DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_addr_,_string_) \ +static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \ +{ \ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t val; \ + val = dwc_read_reg32 (_addr_); \ + return sprintf (buf, "%s = 0x%08x\n", _string_, val); \ +} +#define DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_addr_,_string_) \ +static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t val = simple_strtoul(buf, NULL, 16); \ + dev_dbg(_dev, "Storing Address=0x%08x Val=0x%08x\n", (uint32_t)_addr_, val); \ + dwc_write_reg32(_addr_, val); \ + return count; \ +} + +#define DWC_OTG_DEVICE_ATTR_BITFIELD_RW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ +DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ +DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ +DEVICE_ATTR(_otg_attr_name_,0644,_otg_attr_name_##_show,_otg_attr_name_##_store); + +#define DWC_OTG_DEVICE_ATTR_BITFIELD_RO(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ +DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ +DEVICE_ATTR(_otg_attr_name_,0444,_otg_attr_name_##_show,NULL); + +#define DWC_OTG_DEVICE_ATTR_REG32_RW(_otg_attr_name_,_addr_,_string_) \ +DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_addr_,_string_) \ +DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_addr_,_string_) \ +DEVICE_ATTR(_otg_attr_name_,0644,_otg_attr_name_##_show,_otg_attr_name_##_store); + +#define DWC_OTG_DEVICE_ATTR_REG32_RO(_otg_attr_name_,_addr_,_string_) \ +DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_addr_,_string_) \ +DEVICE_ATTR(_otg_attr_name_,0444,_otg_attr_name_##_show,NULL); + + +/** @name Functions for Show/Store of Attributes */ +/**@{*/ + +/** + * Show the register offset of the Register Access. + */ +static ssize_t regoffset_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + return snprintf(buf, sizeof("0xFFFFFFFF\n")+1,"0x%08x\n", otg_dev->reg_offset); +} + +/** + * Set the register offset for the next Register Access Read/Write + */ +static ssize_t regoffset_store( struct device *_dev, + struct device_attribute *attr, + const char *buf, + size_t count ) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t offset = simple_strtoul(buf, NULL, 16); + //dev_dbg(_dev, "Offset=0x%08x\n", offset); + if (offset < SZ_256K ) { + otg_dev->reg_offset = offset; + } + else { + dev_err( _dev, "invalid offset\n" ); + } + + return count; +} +DEVICE_ATTR(regoffset, S_IRUGO|S_IWUSR, (void *)regoffset_show, regoffset_store); + + +/** + * Show the value of the register at the offset in the reg_offset + * attribute. + */ +static ssize_t regvalue_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t val; + volatile uint32_t *addr; + + if (otg_dev->reg_offset != 0xFFFFFFFF && + 0 != otg_dev->base) { + /* Calculate the address */ + addr = (uint32_t*)(otg_dev->reg_offset + + (uint8_t*)otg_dev->base); + //dev_dbg(_dev, "@0x%08x\n", (unsigned)addr); + val = dwc_read_reg32( addr ); + return snprintf(buf, sizeof("Reg@0xFFFFFFFF = 0xFFFFFFFF\n")+1, + "Reg@0x%06x = 0x%08x\n", + otg_dev->reg_offset, val); + } + else { + dev_err(_dev, "Invalid offset (0x%0x)\n", + otg_dev->reg_offset); + return sprintf(buf, "invalid offset\n" ); + } +} + +/** + * Store the value in the register at the offset in the reg_offset + * attribute. + * + */ +static ssize_t regvalue_store( struct device *_dev, + struct device_attribute *attr, + const char *buf, + size_t count ) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + volatile uint32_t * addr; + uint32_t val = simple_strtoul(buf, NULL, 16); + //dev_dbg(_dev, "Offset=0x%08x Val=0x%08x\n", otg_dev->reg_offset, val); + if (otg_dev->reg_offset != 0xFFFFFFFF && 0 != otg_dev->base) { + /* Calculate the address */ + addr = (uint32_t*)(otg_dev->reg_offset + + (uint8_t*)otg_dev->base); + //dev_dbg(_dev, "@0x%08x\n", (unsigned)addr); + dwc_write_reg32( addr, val ); + } + else { + dev_err(_dev, "Invalid Register Offset (0x%08x)\n", + otg_dev->reg_offset); + } + return count; +} +DEVICE_ATTR(regvalue, S_IRUGO|S_IWUSR, regvalue_show, regvalue_store); + +/* + * Attributes + */ +DWC_OTG_DEVICE_ATTR_BITFIELD_RO(mode,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<20),20,"Mode"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RW(hnpcapable,&(otg_dev->core_if->core_global_regs->gusbcfg),(1<<9),9,"Mode"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RW(srpcapable,&(otg_dev->core_if->core_global_regs->gusbcfg),(1<<8),8,"Mode"); + +//DWC_OTG_DEVICE_ATTR_BITFIELD_RW(buspower,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<8),8,"Mode"); +//DWC_OTG_DEVICE_ATTR_BITFIELD_RW(bussuspend,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<8),8,"Mode"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RO(busconnected,otg_dev->core_if->host_if->hprt0,0x01,0,"Bus Connected"); + +DWC_OTG_DEVICE_ATTR_REG32_RW(gotgctl,&(otg_dev->core_if->core_global_regs->gotgctl),"GOTGCTL"); +DWC_OTG_DEVICE_ATTR_REG32_RW(gusbcfg,&(otg_dev->core_if->core_global_regs->gusbcfg),"GUSBCFG"); +DWC_OTG_DEVICE_ATTR_REG32_RW(grxfsiz,&(otg_dev->core_if->core_global_regs->grxfsiz),"GRXFSIZ"); +DWC_OTG_DEVICE_ATTR_REG32_RW(gnptxfsiz,&(otg_dev->core_if->core_global_regs->gnptxfsiz),"GNPTXFSIZ"); +DWC_OTG_DEVICE_ATTR_REG32_RW(gpvndctl,&(otg_dev->core_if->core_global_regs->gpvndctl),"GPVNDCTL"); +DWC_OTG_DEVICE_ATTR_REG32_RW(ggpio,&(otg_dev->core_if->core_global_regs->ggpio),"GGPIO"); +DWC_OTG_DEVICE_ATTR_REG32_RW(guid,&(otg_dev->core_if->core_global_regs->guid),"GUID"); +DWC_OTG_DEVICE_ATTR_REG32_RO(gsnpsid,&(otg_dev->core_if->core_global_regs->gsnpsid),"GSNPSID"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RW(devspeed,&(otg_dev->core_if->dev_if->dev_global_regs->dcfg),0x3,0,"Device Speed"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RO(enumspeed,&(otg_dev->core_if->dev_if->dev_global_regs->dsts),0x6,1,"Device Enumeration Speed"); + +DWC_OTG_DEVICE_ATTR_REG32_RO(hptxfsiz,&(otg_dev->core_if->core_global_regs->hptxfsiz),"HPTXFSIZ"); +DWC_OTG_DEVICE_ATTR_REG32_RW(hprt0,otg_dev->core_if->host_if->hprt0,"HPRT0"); + + +/** + * @todo Add code to initiate the HNP. + */ +/** + * Show the HNP status bit + */ +static ssize_t hnp_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + gotgctl_data_t val; + val.d32 = dwc_read_reg32 (&(otg_dev->core_if->core_global_regs->gotgctl)); + return sprintf (buf, "HstNegScs = 0x%x\n", val.b.hstnegscs); +} + +/** + * Set the HNP Request bit + */ +static ssize_t hnp_store( struct device *_dev, + struct device_attribute *attr, + const char *buf, + size_t count ) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t in = simple_strtoul(buf, NULL, 16); + uint32_t *addr = (uint32_t *)&(otg_dev->core_if->core_global_regs->gotgctl); + gotgctl_data_t mem; + mem.d32 = dwc_read_reg32(addr); + mem.b.hnpreq = in; + dev_dbg(_dev, "Storing Address=0x%08x Data=0x%08x\n", (uint32_t)addr, mem.d32); + dwc_write_reg32(addr, mem.d32); + return count; +} +DEVICE_ATTR(hnp, 0644, hnp_show, hnp_store); + +/** + * @todo Add code to initiate the SRP. + */ +/** + * Show the SRP status bit + */ +static ssize_t srp_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ +#ifndef DWC_HOST_ONLY + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + gotgctl_data_t val; + val.d32 = dwc_read_reg32 (&(otg_dev->core_if->core_global_regs->gotgctl)); + return sprintf (buf, "SesReqScs = 0x%x\n", val.b.sesreqscs); +#else + return sprintf(buf, "Host Only Mode!\n"); +#endif +} + + + +/** + * Set the SRP Request bit + */ +static ssize_t srp_store( struct device *_dev, + struct device_attribute *attr, + const char *buf, + size_t count ) +{ +#ifndef DWC_HOST_ONLY + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + dwc_otg_pcd_initiate_srp(otg_dev->pcd); +#endif + return count; +} +DEVICE_ATTR(srp, 0644, srp_show, srp_store); + +/** + * @todo Need to do more for power on/off? + */ +/** + * Show the Bus Power status + */ +static ssize_t buspower_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + hprt0_data_t val; + val.d32 = dwc_read_reg32 (otg_dev->core_if->host_if->hprt0); + return sprintf (buf, "Bus Power = 0x%x\n", val.b.prtpwr); +} + + +/** + * Set the Bus Power status + */ +static ssize_t buspower_store( struct device *_dev, + struct device_attribute *attr, + const char *buf, + size_t count ) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t on = simple_strtoul(buf, NULL, 16); + uint32_t *addr = (uint32_t *)otg_dev->core_if->host_if->hprt0; + hprt0_data_t mem; + + mem.d32 = dwc_read_reg32(addr); + mem.b.prtpwr = on; + + //dev_dbg(_dev, "Storing Address=0x%08x Data=0x%08x\n", (uint32_t)addr, mem.d32); + dwc_write_reg32(addr, mem.d32); + + return count; +} +DEVICE_ATTR(buspower, 0644, buspower_show, buspower_store); + +/** + * @todo Need to do more for suspend? + */ +/** + * Show the Bus Suspend status + */ +static ssize_t bussuspend_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + hprt0_data_t val; + val.d32 = dwc_read_reg32 (otg_dev->core_if->host_if->hprt0); + return sprintf (buf, "Bus Suspend = 0x%x\n", val.b.prtsusp); +} + +/** + * Set the Bus Suspend status + */ +static ssize_t bussuspend_store( struct device *_dev, + struct device_attribute *attr, + const char *buf, + size_t count ) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t in = simple_strtoul(buf, NULL, 16); + uint32_t *addr = (uint32_t *)otg_dev->core_if->host_if->hprt0; + hprt0_data_t mem; + mem.d32 = dwc_read_reg32(addr); + mem.b.prtsusp = in; + dev_dbg(_dev, "Storing Address=0x%08x Data=0x%08x\n", (uint32_t)addr, mem.d32); + dwc_write_reg32(addr, mem.d32); + return count; +} +DEVICE_ATTR(bussuspend, 0644, bussuspend_show, bussuspend_store); + +/** + * Show the status of Remote Wakeup. + */ +static ssize_t remote_wakeup_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ +#ifndef DWC_HOST_ONLY + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + dctl_data_t val; + val.d32 = + dwc_read_reg32( &otg_dev->core_if->dev_if->dev_global_regs->dctl); + return sprintf( buf, "Remote Wakeup = %d Enabled = %d\n", + val.b.rmtwkupsig, otg_dev->pcd->remote_wakeup_enable); +#else + return sprintf(buf, "Host Only Mode!\n"); +#endif +} +/** + * Initiate a remote wakeup of the host. The Device control register + * Remote Wakeup Signal bit is written if the PCD Remote wakeup enable + * flag is set. + * + */ +static ssize_t remote_wakeup_store( struct device *_dev, + struct device_attribute *attr, + const char *buf, + size_t count ) +{ +#ifndef DWC_HOST_ONLY + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t val = simple_strtoul(buf, NULL, 16); + if (val&1) { + dwc_otg_pcd_remote_wakeup(otg_dev->pcd, 1); + } + else { + dwc_otg_pcd_remote_wakeup(otg_dev->pcd, 0); + } +#endif + return count; +} +DEVICE_ATTR(remote_wakeup, S_IRUGO|S_IWUSR, remote_wakeup_show, + remote_wakeup_store); + +/** + * Dump global registers and either host or device registers (depending on the + * current mode of the core). + */ +static ssize_t regdump_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + dwc_otg_dump_global_registers( otg_dev->core_if); + if (dwc_otg_is_host_mode(otg_dev->core_if)) { + dwc_otg_dump_host_registers( otg_dev->core_if); + } else { + dwc_otg_dump_dev_registers( otg_dev->core_if); + + } + return sprintf( buf, "Register Dump\n" ); +} + +DEVICE_ATTR(regdump, S_IRUGO|S_IWUSR, regdump_show, 0); + +/** + * Dump global registers and either host or device registers (depending on the + * current mode of the core). + */ +static ssize_t spramdump_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + dwc_otg_dump_spram( otg_dev->core_if); + + return sprintf( buf, "SPRAM Dump\n" ); +} + +DEVICE_ATTR(spramdump, S_IRUGO|S_IWUSR, spramdump_show, 0); + +/** + * Dump the current hcd state. + */ +static ssize_t hcddump_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ +#ifndef DWC_DEVICE_ONLY + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + dwc_otg_hcd_dump_state(otg_dev->hcd); +#endif + return sprintf( buf, "HCD Dump\n" ); +} + +DEVICE_ATTR(hcddump, S_IRUGO|S_IWUSR, hcddump_show, 0); + +/** + * Dump the average frame remaining at SOF. This can be used to + * determine average interrupt latency. Frame remaining is also shown for + * start transfer and two additional sample points. + */ +static ssize_t hcd_frrem_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ +#ifndef DWC_DEVICE_ONLY + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + dwc_otg_hcd_dump_frrem(otg_dev->hcd); +#endif + return sprintf( buf, "HCD Dump Frame Remaining\n" ); +} + +DEVICE_ATTR(hcd_frrem, S_IRUGO|S_IWUSR, hcd_frrem_show, 0); + +/** + * Displays the time required to read the GNPTXFSIZ register many times (the + * output shows the number of times the register is read). + */ +#define RW_REG_COUNT 10000000 +#define MSEC_PER_JIFFIE 1000/HZ +static ssize_t rd_reg_test_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + int i; + int time; + int start_jiffies; + + printk("HZ %d, MSEC_PER_JIFFIE %d, loops_per_jiffy %lu\n", + HZ, MSEC_PER_JIFFIE, loops_per_jiffy); + start_jiffies = jiffies; + for (i = 0; i < RW_REG_COUNT; i++) { + dwc_read_reg32(&otg_dev->core_if->core_global_regs->gnptxfsiz); + } + time = jiffies - start_jiffies; + return sprintf( buf, "Time to read GNPTXFSIZ reg %d times: %d msecs (%d jiffies)\n", + RW_REG_COUNT, time * MSEC_PER_JIFFIE, time ); +} + +DEVICE_ATTR(rd_reg_test, S_IRUGO|S_IWUSR, rd_reg_test_show, 0); + +/** + * Displays the time required to write the GNPTXFSIZ register many times (the + * output shows the number of times the register is written). + */ +static ssize_t wr_reg_test_show( struct device *_dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ + uint32_t reg_val; + int i; + int time; + int start_jiffies; + + printk("HZ %d, MSEC_PER_JIFFIE %d, loops_per_jiffy %lu\n", + HZ, MSEC_PER_JIFFIE, loops_per_jiffy); + reg_val = dwc_read_reg32(&otg_dev->core_if->core_global_regs->gnptxfsiz); + start_jiffies = jiffies; + for (i = 0; i < RW_REG_COUNT; i++) { + dwc_write_reg32(&otg_dev->core_if->core_global_regs->gnptxfsiz, reg_val); + } + time = jiffies - start_jiffies; + return sprintf( buf, "Time to write GNPTXFSIZ reg %d times: %d msecs (%d jiffies)\n", + RW_REG_COUNT, time * MSEC_PER_JIFFIE, time); +} + +DEVICE_ATTR(wr_reg_test, S_IRUGO|S_IWUSR, wr_reg_test_show, 0); +/**@}*/ + +/** + * Create the device files + */ +void dwc_otg_attr_create (struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + int error; + + error = device_create_file(dev, &dev_attr_regoffset); + error = device_create_file(dev, &dev_attr_regvalue); + error = device_create_file(dev, &dev_attr_mode); + error = device_create_file(dev, &dev_attr_hnpcapable); + error = device_create_file(dev, &dev_attr_srpcapable); + error = device_create_file(dev, &dev_attr_hnp); + error = device_create_file(dev, &dev_attr_srp); + error = device_create_file(dev, &dev_attr_buspower); + error = device_create_file(dev, &dev_attr_bussuspend); + error = device_create_file(dev, &dev_attr_busconnected); + error = device_create_file(dev, &dev_attr_gotgctl); + error = device_create_file(dev, &dev_attr_gusbcfg); + error = device_create_file(dev, &dev_attr_grxfsiz); + error = device_create_file(dev, &dev_attr_gnptxfsiz); + error = device_create_file(dev, &dev_attr_gpvndctl); + error = device_create_file(dev, &dev_attr_ggpio); + error = device_create_file(dev, &dev_attr_guid); + error = device_create_file(dev, &dev_attr_gsnpsid); + error = device_create_file(dev, &dev_attr_devspeed); + error = device_create_file(dev, &dev_attr_enumspeed); + error = device_create_file(dev, &dev_attr_hptxfsiz); + error = device_create_file(dev, &dev_attr_hprt0); + error = device_create_file(dev, &dev_attr_remote_wakeup); + error = device_create_file(dev, &dev_attr_regdump); + error = device_create_file(dev, &dev_attr_spramdump); + error = device_create_file(dev, &dev_attr_hcddump); + error = device_create_file(dev, &dev_attr_hcd_frrem); + error = device_create_file(dev, &dev_attr_rd_reg_test); + error = device_create_file(dev, &dev_attr_wr_reg_test); +} + +/** + * Remove the device files + */ +void dwc_otg_attr_remove (struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + + device_remove_file(dev, &dev_attr_regoffset); + device_remove_file(dev, &dev_attr_regvalue); + device_remove_file(dev, &dev_attr_mode); + device_remove_file(dev, &dev_attr_hnpcapable); + device_remove_file(dev, &dev_attr_srpcapable); + device_remove_file(dev, &dev_attr_hnp); + device_remove_file(dev, &dev_attr_srp); + device_remove_file(dev, &dev_attr_buspower); + device_remove_file(dev, &dev_attr_bussuspend); + device_remove_file(dev, &dev_attr_busconnected); + device_remove_file(dev, &dev_attr_gotgctl); + device_remove_file(dev, &dev_attr_gusbcfg); + device_remove_file(dev, &dev_attr_grxfsiz); + device_remove_file(dev, &dev_attr_gnptxfsiz); + device_remove_file(dev, &dev_attr_gpvndctl); + device_remove_file(dev, &dev_attr_ggpio); + device_remove_file(dev, &dev_attr_guid); + device_remove_file(dev, &dev_attr_gsnpsid); + device_remove_file(dev, &dev_attr_devspeed); + device_remove_file(dev, &dev_attr_enumspeed); + device_remove_file(dev, &dev_attr_hptxfsiz); + device_remove_file(dev, &dev_attr_hprt0); + device_remove_file(dev, &dev_attr_remote_wakeup); + device_remove_file(dev, &dev_attr_regdump); + device_remove_file(dev, &dev_attr_spramdump); + device_remove_file(dev, &dev_attr_hcddump); + device_remove_file(dev, &dev_attr_hcd_frrem); + device_remove_file(dev, &dev_attr_rd_reg_test); + device_remove_file(dev, &dev_attr_wr_reg_test); +} diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_attr.h b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_attr.h new file mode 100644 index 0000000000..b970dc0f73 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_attr.h @@ -0,0 +1,67 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_attr.h $ + * $Revision: #7 $ + * $Date: 2005/03/28 $ + * $Change: 477051 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#if !defined(__DWC_OTG_ATTR_H__) +#define __DWC_OTG_ATTR_H__ + +/** @file + * This file contains the interface to the Linux device attributes. + */ +extern struct device_attribute dev_attr_regoffset; +extern struct device_attribute dev_attr_regvalue; + +extern struct device_attribute dev_attr_mode; +extern struct device_attribute dev_attr_hnpcapable; +extern struct device_attribute dev_attr_srpcapable; +extern struct device_attribute dev_attr_hnp; +extern struct device_attribute dev_attr_srp; +extern struct device_attribute dev_attr_buspower; +extern struct device_attribute dev_attr_bussuspend; +extern struct device_attribute dev_attr_busconnected; +extern struct device_attribute dev_attr_gotgctl; +extern struct device_attribute dev_attr_gusbcfg; +extern struct device_attribute dev_attr_grxfsiz; +extern struct device_attribute dev_attr_gnptxfsiz; +extern struct device_attribute dev_attr_gpvndctl; +extern struct device_attribute dev_attr_ggpio; +extern struct device_attribute dev_attr_guid; +extern struct device_attribute dev_attr_gsnpsid; +extern struct device_attribute dev_attr_devspeed; +extern struct device_attribute dev_attr_enumspeed; +extern struct device_attribute dev_attr_hptxfsiz; +extern struct device_attribute dev_attr_hprt0; + +void dwc_otg_attr_create (struct platform_device *pdev); +void dwc_otg_attr_remove (struct platform_device *pdev); + +#endif diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_cil.c b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_cil.c new file mode 100644 index 0000000000..42983afb8c --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_cil.c @@ -0,0 +1,3831 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil.c $ + * $Revision: #147 $ + * $Date: 2008/10/16 $ + * $Change: 1117667 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +/** @file + * + * The Core Interface Layer provides basic services for accessing and + * managing the DWC_otg hardware. These services are used by both the + * Host Controller Driver and the Peripheral Controller Driver. + * + * The CIL manages the memory map for the core so that the HCD and PCD + * don't have to do this separately. It also handles basic tasks like + * reading/writing the registers and data FIFOs in the controller. + * Some of the data access functions provide encapsulation of several + * operations required to perform a task, such as writing multiple + * registers to start a transfer. Finally, the CIL performs basic + * services that are not specific to either the host or device modes + * of operation. These services include management of the OTG Host + * Negotiation Protocol (HNP) and Session Request Protocol (SRP). A + * Diagnostic API is also provided to allow testing of the controller + * hardware. + * + * The Core Interface Layer has the following requirements: + * - Provides basic controller operations. + * - Minimal use of OS services. + * - The OS services used will be abstracted by using inline functions + * or macros. + * + */ +#include <asm/unaligned.h> +#include <linux/dma-mapping.h> +#ifdef DEBUG +#include <linux/jiffies.h> +#endif + +#include "otg_plat.h" +#include "otg_regs.h" +#include "otg_cil.h" +#include "otg_pcd.h" + + +/** + * This function is called to initialize the DWC_otg CSR data + * structures. The register addresses in the device and host + * structures are initialized from the base address supplied by the + * caller. The calling function must make the OS calls to get the + * base address of the DWC_otg controller registers. The core_params + * argument holds the parameters that specify how the core should be + * configured. + * + * @param[in] reg_base_addr Base address of DWC_otg core registers + * @param[in] core_params Pointer to the core configuration parameters + * + */ +dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t *reg_base_addr, + dwc_otg_core_params_t *core_params) +{ + dwc_otg_core_if_t *core_if = 0; + dwc_otg_dev_if_t *dev_if = 0; + dwc_otg_host_if_t *host_if = 0; + uint8_t *reg_base = (uint8_t *)reg_base_addr; + int i = 0; + + DWC_DEBUGPL(DBG_CILV, "%s(%p,%p)\n", __func__, reg_base_addr, core_params); + + core_if = kmalloc(sizeof(dwc_otg_core_if_t), GFP_KERNEL); + + if (core_if == 0) { + DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_core_if_t failed\n"); + return 0; + } + + memset(core_if, 0, sizeof(dwc_otg_core_if_t)); + + core_if->core_params = core_params; + core_if->core_global_regs = (dwc_otg_core_global_regs_t *)reg_base; + + /* + * Allocate the Device Mode structures. + */ + dev_if = kmalloc(sizeof(dwc_otg_dev_if_t), GFP_KERNEL); + + if (dev_if == 0) { + DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_dev_if_t failed\n"); + kfree(core_if); + return 0; + } + + dev_if->dev_global_regs = + (dwc_otg_device_global_regs_t *)(reg_base + DWC_DEV_GLOBAL_REG_OFFSET); + + for (i=0; i<MAX_EPS_CHANNELS; i++) + { + dev_if->in_ep_regs[i] = (dwc_otg_dev_in_ep_regs_t *) + (reg_base + DWC_DEV_IN_EP_REG_OFFSET + + (i * DWC_EP_REG_OFFSET)); + + dev_if->out_ep_regs[i] = (dwc_otg_dev_out_ep_regs_t *) + (reg_base + DWC_DEV_OUT_EP_REG_OFFSET + + (i * DWC_EP_REG_OFFSET)); + DWC_DEBUGPL(DBG_CILV, "in_ep_regs[%d]->diepctl=%p\n", + i, &dev_if->in_ep_regs[i]->diepctl); + DWC_DEBUGPL(DBG_CILV, "out_ep_regs[%d]->doepctl=%p\n", + i, &dev_if->out_ep_regs[i]->doepctl); + } + + dev_if->speed = 0; // unknown + + core_if->dev_if = dev_if; + + /* + * Allocate the Host Mode structures. + */ + host_if = kmalloc(sizeof(dwc_otg_host_if_t), GFP_KERNEL); + + if (host_if == 0) { + DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_host_if_t failed\n"); + kfree(dev_if); + kfree(core_if); + return 0; + } + + host_if->host_global_regs = (dwc_otg_host_global_regs_t *) + (reg_base + DWC_OTG_HOST_GLOBAL_REG_OFFSET); + + host_if->hprt0 = (uint32_t*)(reg_base + DWC_OTG_HOST_PORT_REGS_OFFSET); + + for (i=0; i<MAX_EPS_CHANNELS; i++) + { + host_if->hc_regs[i] = (dwc_otg_hc_regs_t *) + (reg_base + DWC_OTG_HOST_CHAN_REGS_OFFSET + + (i * DWC_OTG_CHAN_REGS_OFFSET)); + DWC_DEBUGPL(DBG_CILV, "hc_reg[%d]->hcchar=%p\n", + i, &host_if->hc_regs[i]->hcchar); + } + + host_if->num_host_channels = MAX_EPS_CHANNELS; + core_if->host_if = host_if; + + for (i=0; i<MAX_EPS_CHANNELS; i++) + { + core_if->data_fifo[i] = + (uint32_t *)(reg_base + DWC_OTG_DATA_FIFO_OFFSET + + (i * DWC_OTG_DATA_FIFO_SIZE)); + DWC_DEBUGPL(DBG_CILV, "data_fifo[%d]=0x%08x\n", + i, (unsigned)core_if->data_fifo[i]); + } + + core_if->pcgcctl = (uint32_t*)(reg_base + DWC_OTG_PCGCCTL_OFFSET); + + /* + * Store the contents of the hardware configuration registers here for + * easy access later. + */ + core_if->hwcfg1.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg1); + core_if->hwcfg2.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg2); + core_if->hwcfg3.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg3); + core_if->hwcfg4.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg4); + + DWC_DEBUGPL(DBG_CILV,"hwcfg1=%08x\n",core_if->hwcfg1.d32); + DWC_DEBUGPL(DBG_CILV,"hwcfg2=%08x\n",core_if->hwcfg2.d32); + DWC_DEBUGPL(DBG_CILV,"hwcfg3=%08x\n",core_if->hwcfg3.d32); + DWC_DEBUGPL(DBG_CILV,"hwcfg4=%08x\n",core_if->hwcfg4.d32); + + core_if->hcfg.d32 = dwc_read_reg32(&core_if->host_if->host_global_regs->hcfg); + core_if->dcfg.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dcfg); + + DWC_DEBUGPL(DBG_CILV,"hcfg=%08x\n",core_if->hcfg.d32); + DWC_DEBUGPL(DBG_CILV,"dcfg=%08x\n",core_if->dcfg.d32); + + DWC_DEBUGPL(DBG_CILV,"op_mode=%0x\n",core_if->hwcfg2.b.op_mode); + DWC_DEBUGPL(DBG_CILV,"arch=%0x\n",core_if->hwcfg2.b.architecture); + DWC_DEBUGPL(DBG_CILV,"num_dev_ep=%d\n",core_if->hwcfg2.b.num_dev_ep); + DWC_DEBUGPL(DBG_CILV,"num_host_chan=%d\n",core_if->hwcfg2.b.num_host_chan); + DWC_DEBUGPL(DBG_CILV,"nonperio_tx_q_depth=0x%0x\n",core_if->hwcfg2.b.nonperio_tx_q_depth); + DWC_DEBUGPL(DBG_CILV,"host_perio_tx_q_depth=0x%0x\n",core_if->hwcfg2.b.host_perio_tx_q_depth); + DWC_DEBUGPL(DBG_CILV,"dev_token_q_depth=0x%0x\n",core_if->hwcfg2.b.dev_token_q_depth); + + DWC_DEBUGPL(DBG_CILV,"Total FIFO SZ=%d\n", core_if->hwcfg3.b.dfifo_depth); + DWC_DEBUGPL(DBG_CILV,"xfer_size_cntr_width=%0x\n", core_if->hwcfg3.b.xfer_size_cntr_width); + + /* + * Set the SRP sucess bit for FS-I2c + */ + core_if->srp_success = 0; + core_if->srp_timer_started = 0; + + + /* + * Create new workqueue and init works + */ + core_if->wq_otg = create_singlethread_workqueue("dwc_otg"); + if(core_if->wq_otg == 0) { + DWC_DEBUGPL(DBG_CIL, "Creation of wq_otg failed\n"); + kfree(host_if); + kfree(dev_if); + kfree(core_if); + return 0 * HZ; + } + INIT_WORK(&core_if->w_conn_id, w_conn_id_status_change); + INIT_DELAYED_WORK(&core_if->w_wkp, w_wakeup_detected); + + return core_if; +} + +/** + * This function frees the structures allocated by dwc_otg_cil_init(). + * + * @param[in] core_if The core interface pointer returned from + * dwc_otg_cil_init(). + * + */ +void dwc_otg_cil_remove(dwc_otg_core_if_t *core_if) +{ + /* Disable all interrupts */ + dwc_modify_reg32(&core_if->core_global_regs->gahbcfg, 1, 0); + dwc_write_reg32(&core_if->core_global_regs->gintmsk, 0); + + if (core_if->wq_otg) { + destroy_workqueue(core_if->wq_otg); + } + if (core_if->dev_if) { + kfree(core_if->dev_if); + } + if (core_if->host_if) { + kfree(core_if->host_if); + } + kfree(core_if); +} + +/** + * This function enables the controller's Global Interrupt in the AHB Config + * register. + * + * @param[in] core_if Programming view of DWC_otg controller. + */ +void dwc_otg_enable_global_interrupts(dwc_otg_core_if_t *core_if) +{ + gahbcfg_data_t ahbcfg = { .d32 = 0}; + ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */ + dwc_modify_reg32(&core_if->core_global_regs->gahbcfg, 0, ahbcfg.d32); +} + +/** + * This function disables the controller's Global Interrupt in the AHB Config + * register. + * + * @param[in] core_if Programming view of DWC_otg controller. + */ +void dwc_otg_disable_global_interrupts(dwc_otg_core_if_t *core_if) +{ + gahbcfg_data_t ahbcfg = { .d32 = 0}; + ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */ + dwc_modify_reg32(&core_if->core_global_regs->gahbcfg, ahbcfg.d32, 0); +} + +/** + * This function initializes the commmon interrupts, used in both + * device and host modes. + * + * @param[in] core_if Programming view of the DWC_otg controller + * + */ +static void dwc_otg_enable_common_interrupts(dwc_otg_core_if_t *core_if) +{ + dwc_otg_core_global_regs_t *global_regs = + core_if->core_global_regs; + gintmsk_data_t intr_mask = { .d32 = 0}; + + /* Clear any pending OTG Interrupts */ + dwc_write_reg32(&global_regs->gotgint, 0xFFFFFFFF); + + /* Clear any pending interrupts */ + dwc_write_reg32(&global_regs->gintsts, 0xFFFFFFFF); + + /* + * Enable the interrupts in the GINTMSK. + */ + intr_mask.b.modemismatch = 1; + intr_mask.b.otgintr = 1; + + if (!core_if->dma_enable) { + intr_mask.b.rxstsqlvl = 1; + } + + intr_mask.b.conidstschng = 1; + intr_mask.b.wkupintr = 1; + intr_mask.b.disconnect = 1; + intr_mask.b.usbsuspend = 1; + intr_mask.b.sessreqintr = 1; + dwc_write_reg32(&global_regs->gintmsk, intr_mask.d32); +} + +/** + * Initializes the FSLSPClkSel field of the HCFG register depending on the PHY + * type. + */ +static void init_fslspclksel(dwc_otg_core_if_t *core_if) +{ + uint32_t val; + hcfg_data_t hcfg; + + if (((core_if->hwcfg2.b.hs_phy_type == 2) && + (core_if->hwcfg2.b.fs_phy_type == 1) && + (core_if->core_params->ulpi_fs_ls)) || + (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) { + /* Full speed PHY */ + val = DWC_HCFG_48_MHZ; + } + else { + /* High speed PHY running at full speed or high speed */ + val = DWC_HCFG_30_60_MHZ; + } + + DWC_DEBUGPL(DBG_CIL, "Initializing HCFG.FSLSPClkSel to 0x%1x\n", val); + hcfg.d32 = dwc_read_reg32(&core_if->host_if->host_global_regs->hcfg); + hcfg.b.fslspclksel = val; + dwc_write_reg32(&core_if->host_if->host_global_regs->hcfg, hcfg.d32); +} + +/** + * Initializes the DevSpd field of the DCFG register depending on the PHY type + * and the enumeration speed of the device. + */ +static void init_devspd(dwc_otg_core_if_t *core_if) +{ + uint32_t val; + dcfg_data_t dcfg; + + if (((core_if->hwcfg2.b.hs_phy_type == 2) && + (core_if->hwcfg2.b.fs_phy_type == 1) && + (core_if->core_params->ulpi_fs_ls)) || + (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) { + /* Full speed PHY */ + val = 0x3; + } + else if (core_if->core_params->speed == DWC_SPEED_PARAM_FULL) { + /* High speed PHY running at full speed */ + val = 0x1; + } + else { + /* High speed PHY running at high speed */ + val = 0x0; + } + + DWC_DEBUGPL(DBG_CIL, "Initializing DCFG.DevSpd to 0x%1x\n", val); + + dcfg.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dcfg); + dcfg.b.devspd = val; + dwc_write_reg32(&core_if->dev_if->dev_global_regs->dcfg, dcfg.d32); +} + +/** + * This function calculates the number of IN EPS + * using GHWCFG1 and GHWCFG2 registers values + * + * @param core_if Programming view of the DWC_otg controller + */ +static uint32_t calc_num_in_eps(dwc_otg_core_if_t *core_if) +{ + uint32_t num_in_eps = 0; + uint32_t num_eps = core_if->hwcfg2.b.num_dev_ep; + uint32_t hwcfg1 = core_if->hwcfg1.d32 >> 3; + uint32_t num_tx_fifos = core_if->hwcfg4.b.num_in_eps; + int i; + + + for(i = 0; i < num_eps; ++i) + { + if(!(hwcfg1 & 0x1)) + num_in_eps++; + + hwcfg1 >>= 2; + } + + if(core_if->hwcfg4.b.ded_fifo_en) { + num_in_eps = (num_in_eps > num_tx_fifos) ? num_tx_fifos : num_in_eps; + } + + return num_in_eps; +} + + +/** + * This function calculates the number of OUT EPS + * using GHWCFG1 and GHWCFG2 registers values + * + * @param core_if Programming view of the DWC_otg controller + */ +static uint32_t calc_num_out_eps(dwc_otg_core_if_t *core_if) +{ + uint32_t num_out_eps = 0; + uint32_t num_eps = core_if->hwcfg2.b.num_dev_ep; + uint32_t hwcfg1 = core_if->hwcfg1.d32 >> 2; + int i; + + for(i = 0; i < num_eps; ++i) + { + if(!(hwcfg1 & 0x2)) + num_out_eps++; + + hwcfg1 >>= 2; + } + return num_out_eps; +} +/** + * This function initializes the DWC_otg controller registers and + * prepares the core for device mode or host mode operation. + * + * @param core_if Programming view of the DWC_otg controller + * + */ +void dwc_otg_core_init(dwc_otg_core_if_t *core_if) +{ + int i = 0; + dwc_otg_core_global_regs_t *global_regs = + core_if->core_global_regs; + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + gahbcfg_data_t ahbcfg = { .d32 = 0 }; + gusbcfg_data_t usbcfg = { .d32 = 0 }; + gi2cctl_data_t i2cctl = { .d32 = 0 }; + + DWC_DEBUGPL(DBG_CILV, "dwc_otg_core_init(%p)\n", core_if); + + /* Common Initialization */ + + usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); + +// usbcfg.b.tx_end_delay = 1; + /* Program the ULPI External VBUS bit if needed */ + usbcfg.b.ulpi_ext_vbus_drv = + (core_if->core_params->phy_ulpi_ext_vbus == DWC_PHY_ULPI_EXTERNAL_VBUS) ? 1 : 0; + + /* Set external TS Dline pulsing */ + usbcfg.b.term_sel_dl_pulse = (core_if->core_params->ts_dline == 1) ? 1 : 0; + dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32); + + + /* Reset the Controller */ + dwc_otg_core_reset(core_if); + + /* Initialize parameters from Hardware configuration registers. */ + dev_if->num_in_eps = calc_num_in_eps(core_if); + dev_if->num_out_eps = calc_num_out_eps(core_if); + + + DWC_DEBUGPL(DBG_CIL, "num_dev_perio_in_ep=%d\n", core_if->hwcfg4.b.num_dev_perio_in_ep); + + for (i=0; i < core_if->hwcfg4.b.num_dev_perio_in_ep; i++) + { + dev_if->perio_tx_fifo_size[i] = + dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]) >> 16; + DWC_DEBUGPL(DBG_CIL, "Periodic Tx FIFO SZ #%d=0x%0x\n", + i, dev_if->perio_tx_fifo_size[i]); + } + + for (i=0; i < core_if->hwcfg4.b.num_in_eps; i++) + { + dev_if->tx_fifo_size[i] = + dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]) >> 16; + DWC_DEBUGPL(DBG_CIL, "Tx FIFO SZ #%d=0x%0x\n", + i, dev_if->perio_tx_fifo_size[i]); + } + + core_if->total_fifo_size = core_if->hwcfg3.b.dfifo_depth; + core_if->rx_fifo_size = + dwc_read_reg32(&global_regs->grxfsiz); + core_if->nperio_tx_fifo_size = + dwc_read_reg32(&global_regs->gnptxfsiz) >> 16; + + DWC_DEBUGPL(DBG_CIL, "Total FIFO SZ=%d\n", core_if->total_fifo_size); + DWC_DEBUGPL(DBG_CIL, "Rx FIFO SZ=%d\n", core_if->rx_fifo_size); + DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO SZ=%d\n", core_if->nperio_tx_fifo_size); + + /* This programming sequence needs to happen in FS mode before any other + * programming occurs */ + if ((core_if->core_params->speed == DWC_SPEED_PARAM_FULL) && + (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) { + /* If FS mode with FS PHY */ + + /* core_init() is now called on every switch so only call the + * following for the first time through. */ + if (!core_if->phy_init_done) { + core_if->phy_init_done = 1; + DWC_DEBUGPL(DBG_CIL, "FS_PHY detected\n"); + usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); + usbcfg.b.physel = 1; + dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32); + + /* Reset after a PHY select */ + dwc_otg_core_reset(core_if); + } + + /* Program DCFG.DevSpd or HCFG.FSLSPclkSel to 48Mhz in FS. Also + * do this on HNP Dev/Host mode switches (done in dev_init and + * host_init). */ + if (dwc_otg_is_host_mode(core_if)) { + init_fslspclksel(core_if); + } + else { + init_devspd(core_if); + } + + if (core_if->core_params->i2c_enable) { + DWC_DEBUGPL(DBG_CIL, "FS_PHY Enabling I2c\n"); + /* Program GUSBCFG.OtgUtmifsSel to I2C */ + usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); + usbcfg.b.otgutmifssel = 1; + dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32); + + /* Program GI2CCTL.I2CEn */ + i2cctl.d32 = dwc_read_reg32(&global_regs->gi2cctl); + i2cctl.b.i2cdevaddr = 1; + i2cctl.b.i2cen = 0; + dwc_write_reg32 (&global_regs->gi2cctl, i2cctl.d32); + i2cctl.b.i2cen = 1; + dwc_write_reg32 (&global_regs->gi2cctl, i2cctl.d32); + } + + } /* endif speed == DWC_SPEED_PARAM_FULL */ + + else { + /* High speed PHY. */ + if (!core_if->phy_init_done) { + core_if->phy_init_done = 1; + /* HS PHY parameters. These parameters are preserved + * during soft reset so only program the first time. Do + * a soft reset immediately after setting phyif. */ + usbcfg.b.ulpi_utmi_sel = core_if->core_params->phy_type; + if (usbcfg.b.ulpi_utmi_sel == 1) { + /* ULPI interface */ + usbcfg.b.phyif = 0; + usbcfg.b.ddrsel = core_if->core_params->phy_ulpi_ddr; + } + else { + /* UTMI+ interface */ + if (core_if->core_params->phy_utmi_width == 16) { + usbcfg.b.phyif = 1; + } + else { + usbcfg.b.phyif = 0; + } + } + + dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); + + /* Reset after setting the PHY parameters */ + dwc_otg_core_reset(core_if); + } + } + + if ((core_if->hwcfg2.b.hs_phy_type == 2) && + (core_if->hwcfg2.b.fs_phy_type == 1) && + (core_if->core_params->ulpi_fs_ls)) { + DWC_DEBUGPL(DBG_CIL, "Setting ULPI FSLS\n"); + usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); + usbcfg.b.ulpi_fsls = 1; + usbcfg.b.ulpi_clk_sus_m = 1; + dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); + } + else { + usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); + usbcfg.b.ulpi_fsls = 0; + usbcfg.b.ulpi_clk_sus_m = 0; + dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); + } + + /* Program the GAHBCFG Register.*/ + switch (core_if->hwcfg2.b.architecture) { + + case DWC_SLAVE_ONLY_ARCH: + DWC_DEBUGPL(DBG_CIL, "Slave Only Mode\n"); + ahbcfg.b.nptxfemplvl_txfemplvl = DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY; + ahbcfg.b.ptxfemplvl = DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY; + core_if->dma_enable = 0; + core_if->dma_desc_enable = 0; + break; + + case DWC_EXT_DMA_ARCH: + DWC_DEBUGPL(DBG_CIL, "External DMA Mode\n"); + ahbcfg.b.hburstlen = core_if->core_params->dma_burst_size; + core_if->dma_enable = (core_if->core_params->dma_enable != 0); + core_if->dma_desc_enable = (core_if->core_params->dma_desc_enable != 0); + break; + + case DWC_INT_DMA_ARCH: + DWC_DEBUGPL(DBG_CIL, "Internal DMA Mode\n"); + ahbcfg.b.hburstlen = DWC_GAHBCFG_INT_DMA_BURST_INCR; + core_if->dma_enable = (core_if->core_params->dma_enable != 0); + core_if->dma_desc_enable = (core_if->core_params->dma_desc_enable != 0); + break; + + } + ahbcfg.b.dmaenable = core_if->dma_enable; + dwc_write_reg32(&global_regs->gahbcfg, ahbcfg.d32); + + core_if->en_multiple_tx_fifo = core_if->hwcfg4.b.ded_fifo_en; + + core_if->pti_enh_enable = core_if->core_params->pti_enable != 0; + core_if->multiproc_int_enable = core_if->core_params->mpi_enable; + DWC_PRINT("Periodic Transfer Interrupt Enhancement - %s\n", ((core_if->pti_enh_enable) ? "enabled": "disabled")); + DWC_PRINT("Multiprocessor Interrupt Enhancement - %s\n", ((core_if->multiproc_int_enable) ? "enabled": "disabled")); + + /* + * Program the GUSBCFG register. + */ + usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); + + switch (core_if->hwcfg2.b.op_mode) { + case DWC_MODE_HNP_SRP_CAPABLE: + usbcfg.b.hnpcap = (core_if->core_params->otg_cap == + DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE); + usbcfg.b.srpcap = (core_if->core_params->otg_cap != + DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); + break; + + case DWC_MODE_SRP_ONLY_CAPABLE: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = (core_if->core_params->otg_cap != + DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); + break; + + case DWC_MODE_NO_HNP_SRP_CAPABLE: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = 0; + break; + + case DWC_MODE_SRP_CAPABLE_DEVICE: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = (core_if->core_params->otg_cap != + DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); + break; + + case DWC_MODE_NO_SRP_CAPABLE_DEVICE: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = 0; + break; + + case DWC_MODE_SRP_CAPABLE_HOST: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = (core_if->core_params->otg_cap != + DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); + break; + + case DWC_MODE_NO_SRP_CAPABLE_HOST: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = 0; + break; + } + + dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); + + /* Enable common interrupts */ + dwc_otg_enable_common_interrupts(core_if); + + /* Do device or host intialization based on mode during PCD + * and HCD initialization */ + if (dwc_otg_is_host_mode(core_if)) { + DWC_DEBUGPL(DBG_ANY, "Host Mode\n"); + core_if->op_state = A_HOST; + } + else { + DWC_DEBUGPL(DBG_ANY, "Device Mode\n"); + core_if->op_state = B_PERIPHERAL; +#ifdef DWC_DEVICE_ONLY + dwc_otg_core_dev_init(core_if); +#endif + } +} + + +/** + * This function enables the Device mode interrupts. + * + * @param core_if Programming view of DWC_otg controller + */ +void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t *core_if) +{ + gintmsk_data_t intr_mask = { .d32 = 0}; + dwc_otg_core_global_regs_t *global_regs = + core_if->core_global_regs; + + DWC_DEBUGPL(DBG_CIL, "%s()\n", __func__); + + /* Disable all interrupts. */ + dwc_write_reg32(&global_regs->gintmsk, 0); + + /* Clear any pending interrupts */ + dwc_write_reg32(&global_regs->gintsts, 0xFFFFFFFF); + + /* Enable the common interrupts */ + dwc_otg_enable_common_interrupts(core_if); + + /* Enable interrupts */ + intr_mask.b.usbreset = 1; + intr_mask.b.enumdone = 1; + + if(!core_if->multiproc_int_enable) { + intr_mask.b.inepintr = 1; + intr_mask.b.outepintr = 1; + } + + intr_mask.b.erlysuspend = 1; + + if(core_if->en_multiple_tx_fifo == 0) { + intr_mask.b.epmismatch = 1; + } + + +#ifdef DWC_EN_ISOC + if(core_if->dma_enable) { + if(core_if->dma_desc_enable == 0) { + if(core_if->pti_enh_enable) { + dctl_data_t dctl = { .d32 = 0 }; + dctl.b.ifrmnum = 1; + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32); + } else { + intr_mask.b.incomplisoin = 1; + intr_mask.b.incomplisoout = 1; + } + } + } else { + intr_mask.b.incomplisoin = 1; + intr_mask.b.incomplisoout = 1; + } +#endif // DWC_EN_ISOC + +/** @todo NGS: Should this be a module parameter? */ +#ifdef USE_PERIODIC_EP + intr_mask.b.isooutdrop = 1; + intr_mask.b.eopframe = 1; + intr_mask.b.incomplisoin = 1; + intr_mask.b.incomplisoout = 1; +#endif + + dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32); + + DWC_DEBUGPL(DBG_CIL, "%s() gintmsk=%0x\n", __func__, + dwc_read_reg32(&global_regs->gintmsk)); +} + +/** + * This function initializes the DWC_otg controller registers for + * device mode. + * + * @param core_if Programming view of DWC_otg controller + * + */ +void dwc_otg_core_dev_init(dwc_otg_core_if_t *core_if) +{ + int i,size; + u_int32_t *default_value_array; + + dwc_otg_core_global_regs_t *global_regs = + core_if->core_global_regs; + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + dwc_otg_core_params_t *params = core_if->core_params; + dcfg_data_t dcfg = { .d32 = 0}; + grstctl_t resetctl = { .d32 = 0 }; + uint32_t rx_fifo_size; + fifosize_data_t nptxfifosize; + fifosize_data_t txfifosize; + dthrctl_data_t dthrctl; + + /* Restart the Phy Clock */ + dwc_write_reg32(core_if->pcgcctl, 0); + + /* Device configuration register */ + init_devspd(core_if); + dcfg.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dcfg); + dcfg.b.descdma = (core_if->dma_desc_enable) ? 1 : 0; + dcfg.b.perfrint = DWC_DCFG_FRAME_INTERVAL_80; + + dwc_write_reg32(&dev_if->dev_global_regs->dcfg, dcfg.d32); + + /* Configure data FIFO sizes */ + if (core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) { + DWC_DEBUGPL(DBG_CIL, "Total FIFO Size=%d\n", core_if->total_fifo_size); + DWC_DEBUGPL(DBG_CIL, "Rx FIFO Size=%d\n", params->dev_rx_fifo_size); + DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO Size=%d\n", params->dev_nperio_tx_fifo_size); + + /* Rx FIFO */ + DWC_DEBUGPL(DBG_CIL, "initial grxfsiz=%08x\n", + dwc_read_reg32(&global_regs->grxfsiz)); + + rx_fifo_size = params->dev_rx_fifo_size; + dwc_write_reg32(&global_regs->grxfsiz, rx_fifo_size); + + DWC_DEBUGPL(DBG_CIL, "new grxfsiz=%08x\n", + dwc_read_reg32(&global_regs->grxfsiz)); + + /** Set Periodic Tx FIFO Mask all bits 0 */ + core_if->p_tx_msk = 0; + + /** Set Tx FIFO Mask all bits 0 */ + core_if->tx_msk = 0; + + /* Non-periodic Tx FIFO */ + DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n", + dwc_read_reg32(&global_regs->gnptxfsiz)); + + nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size; + nptxfifosize.b.startaddr = params->dev_rx_fifo_size; + + dwc_write_reg32(&global_regs->gnptxfsiz, nptxfifosize.d32); + + DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n", + dwc_read_reg32(&global_regs->gnptxfsiz)); + + txfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth; + if(core_if->en_multiple_tx_fifo == 0) { + //core_if->hwcfg4.b.ded_fifo_en==0 + + /**@todo NGS: Fix Periodic FIFO Sizing! */ + /* + * Periodic Tx FIFOs These FIFOs are numbered from 1 to 15. + * Indexes of the FIFO size module parameters in the + * dev_perio_tx_fifo_size array and the FIFO size registers in + * the dptxfsiz array run from 0 to 14. + */ + /** @todo Finish debug of this */ + size=core_if->hwcfg4.b.num_dev_perio_in_ep; + default_value_array=params->dev_perio_tx_fifo_size; + + } + else { + //core_if->hwcfg4.b.ded_fifo_en==1 + /* + * Tx FIFOs These FIFOs are numbered from 1 to 15. + * Indexes of the FIFO size module parameters in the + * dev_tx_fifo_size array and the FIFO size registers in + * the dptxfsiz_dieptxf array run from 0 to 14. + */ + + size=core_if->hwcfg4.b.num_in_eps; + default_value_array=params->dev_tx_fifo_size; + + } + for (i=0; i < size; i++) + { + + txfifosize.b.depth = default_value_array[i]; + DWC_DEBUGPL(DBG_CIL, "initial dptxfsiz_dieptxf[%d]=%08x\n", i, + dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i])); + dwc_write_reg32(&global_regs->dptxfsiz_dieptxf[i], + txfifosize.d32); + DWC_DEBUGPL(DBG_CIL, "new dptxfsiz_dieptxf[%d]=%08x\n", i, + dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i])); + txfifosize.b.startaddr += txfifosize.b.depth; + } + } + /* Flush the FIFOs */ + dwc_otg_flush_tx_fifo(core_if, 0x10); /* all Tx FIFOs */ + dwc_otg_flush_rx_fifo(core_if); + + /* Flush the Learning Queue. */ + resetctl.b.intknqflsh = 1; + dwc_write_reg32(&core_if->core_global_regs->grstctl, resetctl.d32); + + /* Clear all pending Device Interrupts */ + + if(core_if->multiproc_int_enable) { + } + + /** @todo - if the condition needed to be checked + * or in any case all pending interrutps should be cleared? + */ + if(core_if->multiproc_int_enable) { + for(i = 0; i < core_if->dev_if->num_in_eps; ++i) { + dwc_write_reg32(&dev_if->dev_global_regs->diepeachintmsk[i], 0); + } + + for(i = 0; i < core_if->dev_if->num_out_eps; ++i) { + dwc_write_reg32(&dev_if->dev_global_regs->doepeachintmsk[i], 0); + } + + dwc_write_reg32(&dev_if->dev_global_regs->deachint, 0xFFFFFFFF); + dwc_write_reg32(&dev_if->dev_global_regs->deachintmsk, 0); + } else { + dwc_write_reg32(&dev_if->dev_global_regs->diepmsk, 0); + dwc_write_reg32(&dev_if->dev_global_regs->doepmsk, 0); + dwc_write_reg32(&dev_if->dev_global_regs->daint, 0xFFFFFFFF); + dwc_write_reg32(&dev_if->dev_global_regs->daintmsk, 0); + } + + for (i=0; i <= dev_if->num_in_eps; i++) + { + depctl_data_t depctl; + depctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[i]->diepctl); + if (depctl.b.epena) { + depctl.d32 = 0; + depctl.b.epdis = 1; + depctl.b.snak = 1; + } + else { + depctl.d32 = 0; + } + + dwc_write_reg32(&dev_if->in_ep_regs[i]->diepctl, depctl.d32); + + + dwc_write_reg32(&dev_if->in_ep_regs[i]->dieptsiz, 0); + dwc_write_reg32(&dev_if->in_ep_regs[i]->diepdma, 0); + dwc_write_reg32(&dev_if->in_ep_regs[i]->diepint, 0xFF); + } + + for (i=0; i <= dev_if->num_out_eps; i++) + { + depctl_data_t depctl; + depctl.d32 = dwc_read_reg32(&dev_if->out_ep_regs[i]->doepctl); + if (depctl.b.epena) { + depctl.d32 = 0; + depctl.b.epdis = 1; + depctl.b.snak = 1; + } + else { + depctl.d32 = 0; + } + + dwc_write_reg32(&dev_if->out_ep_regs[i]->doepctl, depctl.d32); + + dwc_write_reg32(&dev_if->out_ep_regs[i]->doeptsiz, 0); + dwc_write_reg32(&dev_if->out_ep_regs[i]->doepdma, 0); + dwc_write_reg32(&dev_if->out_ep_regs[i]->doepint, 0xFF); + } + + if(core_if->en_multiple_tx_fifo && core_if->dma_enable) { + dev_if->non_iso_tx_thr_en = params->thr_ctl & 0x1; + dev_if->iso_tx_thr_en = (params->thr_ctl >> 1) & 0x1; + dev_if->rx_thr_en = (params->thr_ctl >> 2) & 0x1; + + dev_if->rx_thr_length = params->rx_thr_length; + dev_if->tx_thr_length = params->tx_thr_length; + + dev_if->setup_desc_index = 0; + + dthrctl.d32 = 0; + dthrctl.b.non_iso_thr_en = dev_if->non_iso_tx_thr_en; + dthrctl.b.iso_thr_en = dev_if->iso_tx_thr_en; + dthrctl.b.tx_thr_len = dev_if->tx_thr_length; + dthrctl.b.rx_thr_en = dev_if->rx_thr_en; + dthrctl.b.rx_thr_len = dev_if->rx_thr_length; + + dwc_write_reg32(&dev_if->dev_global_regs->dtknqr3_dthrctl, dthrctl.d32); + + DWC_DEBUGPL(DBG_CIL, "Non ISO Tx Thr - %d\nISO Tx Thr - %d\nRx Thr - %d\nTx Thr Len - %d\nRx Thr Len - %d\n", + dthrctl.b.non_iso_thr_en, dthrctl.b.iso_thr_en, dthrctl.b.rx_thr_en, dthrctl.b.tx_thr_len, dthrctl.b.rx_thr_len); + + } + + dwc_otg_enable_device_interrupts(core_if); + + { + diepmsk_data_t msk = { .d32 = 0 }; + msk.b.txfifoundrn = 1; + if(core_if->multiproc_int_enable) { + dwc_modify_reg32(&dev_if->dev_global_regs->diepeachintmsk[0], msk.d32, msk.d32); + } else { + dwc_modify_reg32(&dev_if->dev_global_regs->diepmsk, msk.d32, msk.d32); + } + } + + + if(core_if->multiproc_int_enable) { + /* Set NAK on Babble */ + dctl_data_t dctl = { .d32 = 0}; + dctl.b.nakonbble = 1; + dwc_modify_reg32(&dev_if->dev_global_regs->dctl, 0, dctl.d32); + } +} + +/** + * This function enables the Host mode interrupts. + * + * @param core_if Programming view of DWC_otg controller + */ +void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t *core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + gintmsk_data_t intr_mask = { .d32 = 0 }; + + DWC_DEBUGPL(DBG_CIL, "%s()\n", __func__); + + /* Disable all interrupts. */ + dwc_write_reg32(&global_regs->gintmsk, 0); + + /* Clear any pending interrupts. */ + dwc_write_reg32(&global_regs->gintsts, 0xFFFFFFFF); + + /* Enable the common interrupts */ + dwc_otg_enable_common_interrupts(core_if); + + /* + * Enable host mode interrupts without disturbing common + * interrupts. + */ + intr_mask.b.sofintr = 1; + intr_mask.b.portintr = 1; + intr_mask.b.hcintr = 1; + + dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32); +} + +/** + * This function disables the Host Mode interrupts. + * + * @param core_if Programming view of DWC_otg controller + */ +void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t *core_if) +{ + dwc_otg_core_global_regs_t *global_regs = + core_if->core_global_regs; + gintmsk_data_t intr_mask = { .d32 = 0 }; + + DWC_DEBUGPL(DBG_CILV, "%s()\n", __func__); + + /* + * Disable host mode interrupts without disturbing common + * interrupts. + */ + intr_mask.b.sofintr = 1; + intr_mask.b.portintr = 1; + intr_mask.b.hcintr = 1; + intr_mask.b.ptxfempty = 1; + intr_mask.b.nptxfempty = 1; + + dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, 0); +} + +/** + * This function initializes the DWC_otg controller registers for + * host mode. + * + * This function flushes the Tx and Rx FIFOs and it flushes any entries in the + * request queues. Host channels are reset to ensure that they are ready for + * performing transfers. + * + * @param core_if Programming view of DWC_otg controller + * + */ +void dwc_otg_core_host_init(dwc_otg_core_if_t *core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + dwc_otg_host_if_t *host_if = core_if->host_if; + dwc_otg_core_params_t *params = core_if->core_params; + hprt0_data_t hprt0 = { .d32 = 0 }; + fifosize_data_t nptxfifosize; + fifosize_data_t ptxfifosize; + int i; + hcchar_data_t hcchar; + hcfg_data_t hcfg; + dwc_otg_hc_regs_t *hc_regs; + int num_channels; + gotgctl_data_t gotgctl = { .d32 = 0 }; + + DWC_DEBUGPL(DBG_CILV,"%s(%p)\n", __func__, core_if); + + /* Restart the Phy Clock */ + dwc_write_reg32(core_if->pcgcctl, 0); + + /* Initialize Host Configuration Register */ + init_fslspclksel(core_if); + if (core_if->core_params->speed == DWC_SPEED_PARAM_FULL) + { + hcfg.d32 = dwc_read_reg32(&host_if->host_global_regs->hcfg); + hcfg.b.fslssupp = 1; + dwc_write_reg32(&host_if->host_global_regs->hcfg, hcfg.d32); + } + + /* Configure data FIFO sizes */ + if (core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) { + DWC_DEBUGPL(DBG_CIL,"Total FIFO Size=%d\n", core_if->total_fifo_size); + DWC_DEBUGPL(DBG_CIL,"Rx FIFO Size=%d\n", params->host_rx_fifo_size); + DWC_DEBUGPL(DBG_CIL,"NP Tx FIFO Size=%d\n", params->host_nperio_tx_fifo_size); + DWC_DEBUGPL(DBG_CIL,"P Tx FIFO Size=%d\n", params->host_perio_tx_fifo_size); + + /* Rx FIFO */ + DWC_DEBUGPL(DBG_CIL,"initial grxfsiz=%08x\n", dwc_read_reg32(&global_regs->grxfsiz)); + dwc_write_reg32(&global_regs->grxfsiz, params->host_rx_fifo_size); + DWC_DEBUGPL(DBG_CIL,"new grxfsiz=%08x\n", dwc_read_reg32(&global_regs->grxfsiz)); + + /* Non-periodic Tx FIFO */ + DWC_DEBUGPL(DBG_CIL,"initial gnptxfsiz=%08x\n", dwc_read_reg32(&global_regs->gnptxfsiz)); + nptxfifosize.b.depth = params->host_nperio_tx_fifo_size; + nptxfifosize.b.startaddr = params->host_rx_fifo_size; + dwc_write_reg32(&global_regs->gnptxfsiz, nptxfifosize.d32); + DWC_DEBUGPL(DBG_CIL,"new gnptxfsiz=%08x\n", dwc_read_reg32(&global_regs->gnptxfsiz)); + + /* Periodic Tx FIFO */ + DWC_DEBUGPL(DBG_CIL,"initial hptxfsiz=%08x\n", dwc_read_reg32(&global_regs->hptxfsiz)); + ptxfifosize.b.depth = params->host_perio_tx_fifo_size; + ptxfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth; + dwc_write_reg32(&global_regs->hptxfsiz, ptxfifosize.d32); + DWC_DEBUGPL(DBG_CIL,"new hptxfsiz=%08x\n", dwc_read_reg32(&global_regs->hptxfsiz)); + } + + /* Clear Host Set HNP Enable in the OTG Control Register */ + gotgctl.b.hstsethnpen = 1; + dwc_modify_reg32(&global_regs->gotgctl, gotgctl.d32, 0); + + /* Make sure the FIFOs are flushed. */ + dwc_otg_flush_tx_fifo(core_if, 0x10 /* all Tx FIFOs */); + dwc_otg_flush_rx_fifo(core_if); + + /* Flush out any leftover queued requests. */ + num_channels = core_if->core_params->host_channels; + for (i = 0; i < num_channels; i++) + { + hc_regs = core_if->host_if->hc_regs[i]; + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hcchar.b.chen = 0; + hcchar.b.chdis = 1; + hcchar.b.epdir = 0; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + } + + /* Halt all channels to put them into a known state. */ + for (i = 0; i < num_channels; i++) + { + int count = 0; + hc_regs = core_if->host_if->hc_regs[i]; + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hcchar.b.chen = 1; + hcchar.b.chdis = 1; + hcchar.b.epdir = 0; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + DWC_DEBUGPL(DBG_HCDV, "%s: Halt channel %d\n", __func__, i); + do { + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + if (++count > 1000) + { + DWC_ERROR("%s: Unable to clear halt on channel %d\n", + __func__, i); + break; + } + } + while (hcchar.b.chen); + } + + /* Turn on the vbus power. */ + DWC_PRINT("Init: Port Power? op_state=%d\n", core_if->op_state); + if (core_if->op_state == A_HOST) { + hprt0.d32 = dwc_otg_read_hprt0(core_if); + DWC_PRINT("Init: Power Port (%d)\n", hprt0.b.prtpwr); + if (hprt0.b.prtpwr == 0) { + hprt0.b.prtpwr = 1; + dwc_write_reg32(host_if->hprt0, hprt0.d32); + } + } + + dwc_otg_enable_host_interrupts(core_if); +} + +/** + * Prepares a host channel for transferring packets to/from a specific + * endpoint. The HCCHARn register is set up with the characteristics specified + * in _hc. Host channel interrupts that may need to be serviced while this + * transfer is in progress are enabled. + * + * @param core_if Programming view of DWC_otg controller + * @param hc Information needed to initialize the host channel + */ +void dwc_otg_hc_init(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) +{ + uint32_t intr_enable; + hcintmsk_data_t hc_intr_mask; + gintmsk_data_t gintmsk = { .d32 = 0 }; + hcchar_data_t hcchar; + hcsplt_data_t hcsplt; + + uint8_t hc_num = hc->hc_num; + dwc_otg_host_if_t *host_if = core_if->host_if; + dwc_otg_hc_regs_t *hc_regs = host_if->hc_regs[hc_num]; + + /* Clear old interrupt conditions for this host channel. */ + hc_intr_mask.d32 = 0xFFFFFFFF; + hc_intr_mask.b.reserved = 0; + dwc_write_reg32(&hc_regs->hcint, hc_intr_mask.d32); + + /* Enable channel interrupts required for this transfer. */ + hc_intr_mask.d32 = 0; + hc_intr_mask.b.chhltd = 1; + if (core_if->dma_enable) { + hc_intr_mask.b.ahberr = 1; + if (hc->error_state && !hc->do_split && + hc->ep_type != DWC_OTG_EP_TYPE_ISOC) { + hc_intr_mask.b.ack = 1; + if (hc->ep_is_in) { + hc_intr_mask.b.datatglerr = 1; + if (hc->ep_type != DWC_OTG_EP_TYPE_INTR) { + hc_intr_mask.b.nak = 1; + } + } + } + } + else { + switch (hc->ep_type) { + case DWC_OTG_EP_TYPE_CONTROL: + case DWC_OTG_EP_TYPE_BULK: + hc_intr_mask.b.xfercompl = 1; + hc_intr_mask.b.stall = 1; + hc_intr_mask.b.xacterr = 1; + hc_intr_mask.b.datatglerr = 1; + if (hc->ep_is_in) { + hc_intr_mask.b.bblerr = 1; + } + else { + hc_intr_mask.b.nak = 1; + hc_intr_mask.b.nyet = 1; + if (hc->do_ping) { + hc_intr_mask.b.ack = 1; + } + } + + if (hc->do_split) { + hc_intr_mask.b.nak = 1; + if (hc->complete_split) { + hc_intr_mask.b.nyet = 1; + } + else { + hc_intr_mask.b.ack = 1; + } + } + + if (hc->error_state) { + hc_intr_mask.b.ack = 1; + } + break; + case DWC_OTG_EP_TYPE_INTR: + hc_intr_mask.b.xfercompl = 1; + hc_intr_mask.b.nak = 1; + hc_intr_mask.b.stall = 1; + hc_intr_mask.b.xacterr = 1; + hc_intr_mask.b.datatglerr = 1; + hc_intr_mask.b.frmovrun = 1; + + if (hc->ep_is_in) { + hc_intr_mask.b.bblerr = 1; + } + if (hc->error_state) { + hc_intr_mask.b.ack = 1; + } + if (hc->do_split) { + if (hc->complete_split) { + hc_intr_mask.b.nyet = 1; + } + else { + hc_intr_mask.b.ack = 1; + } + } + break; + case DWC_OTG_EP_TYPE_ISOC: + hc_intr_mask.b.xfercompl = 1; + hc_intr_mask.b.frmovrun = 1; + hc_intr_mask.b.ack = 1; + + if (hc->ep_is_in) { + hc_intr_mask.b.xacterr = 1; + hc_intr_mask.b.bblerr = 1; + } + break; + } + } + dwc_write_reg32(&hc_regs->hcintmsk, hc_intr_mask.d32); + +// if(hc->ep_type == DWC_OTG_EP_TYPE_BULK && !hc->ep_is_in) +// hc->max_packet = 512; + /* Enable the top level host channel interrupt. */ + intr_enable = (1 << hc_num); + dwc_modify_reg32(&host_if->host_global_regs->haintmsk, 0, intr_enable); + + /* Make sure host channel interrupts are enabled. */ + gintmsk.b.hcintr = 1; + dwc_modify_reg32(&core_if->core_global_regs->gintmsk, 0, gintmsk.d32); + + /* + * Program the HCCHARn register with the endpoint characteristics for + * the current transfer. + */ + hcchar.d32 = 0; + hcchar.b.devaddr = hc->dev_addr; + hcchar.b.epnum = hc->ep_num; + hcchar.b.epdir = hc->ep_is_in; + hcchar.b.lspddev = (hc->speed == DWC_OTG_EP_SPEED_LOW); + hcchar.b.eptype = hc->ep_type; + hcchar.b.mps = hc->max_packet; + + dwc_write_reg32(&host_if->hc_regs[hc_num]->hcchar, hcchar.d32); + + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); + DWC_DEBUGPL(DBG_HCDV, " Dev Addr: %d\n", hcchar.b.devaddr); + DWC_DEBUGPL(DBG_HCDV, " Ep Num: %d\n", hcchar.b.epnum); + DWC_DEBUGPL(DBG_HCDV, " Is In: %d\n", hcchar.b.epdir); + DWC_DEBUGPL(DBG_HCDV, " Is Low Speed: %d\n", hcchar.b.lspddev); + DWC_DEBUGPL(DBG_HCDV, " Ep Type: %d\n", hcchar.b.eptype); + DWC_DEBUGPL(DBG_HCDV, " Max Pkt: %d\n", hcchar.b.mps); + DWC_DEBUGPL(DBG_HCDV, " Multi Cnt: %d\n", hcchar.b.multicnt); + + /* + * Program the HCSPLIT register for SPLITs + */ + hcsplt.d32 = 0; + if (hc->do_split) { + DWC_DEBUGPL(DBG_HCDV, "Programming HC %d with split --> %s\n", hc->hc_num, + hc->complete_split ? "CSPLIT" : "SSPLIT"); + hcsplt.b.compsplt = hc->complete_split; + hcsplt.b.xactpos = hc->xact_pos; + hcsplt.b.hubaddr = hc->hub_addr; + hcsplt.b.prtaddr = hc->port_addr; + DWC_DEBUGPL(DBG_HCDV, " comp split %d\n", hc->complete_split); + DWC_DEBUGPL(DBG_HCDV, " xact pos %d\n", hc->xact_pos); + DWC_DEBUGPL(DBG_HCDV, " hub addr %d\n", hc->hub_addr); + DWC_DEBUGPL(DBG_HCDV, " port addr %d\n", hc->port_addr); + DWC_DEBUGPL(DBG_HCDV, " is_in %d\n", hc->ep_is_in); + DWC_DEBUGPL(DBG_HCDV, " Max Pkt: %d\n", hcchar.b.mps); + DWC_DEBUGPL(DBG_HCDV, " xferlen: %d\n", hc->xfer_len); + } + dwc_write_reg32(&host_if->hc_regs[hc_num]->hcsplt, hcsplt.d32); + +} + +/** + * Attempts to halt a host channel. This function should only be called in + * Slave mode or to abort a transfer in either Slave mode or DMA mode. Under + * normal circumstances in DMA mode, the controller halts the channel when the + * transfer is complete or a condition occurs that requires application + * intervention. + * + * In slave mode, checks for a free request queue entry, then sets the Channel + * Enable and Channel Disable bits of the Host Channel Characteristics + * register of the specified channel to intiate the halt. If there is no free + * request queue entry, sets only the Channel Disable bit of the HCCHARn + * register to flush requests for this channel. In the latter case, sets a + * flag to indicate that the host channel needs to be halted when a request + * queue slot is open. + * + * In DMA mode, always sets the Channel Enable and Channel Disable bits of the + * HCCHARn register. The controller ensures there is space in the request + * queue before submitting the halt request. + * + * Some time may elapse before the core flushes any posted requests for this + * host channel and halts. The Channel Halted interrupt handler completes the + * deactivation of the host channel. + * + * @param core_if Controller register interface. + * @param hc Host channel to halt. + * @param halt_status Reason for halting the channel. + */ +void dwc_otg_hc_halt(dwc_otg_core_if_t *core_if, + dwc_hc_t *hc, + dwc_otg_halt_status_e halt_status) +{ + gnptxsts_data_t nptxsts; + hptxsts_data_t hptxsts; + hcchar_data_t hcchar; + dwc_otg_hc_regs_t *hc_regs; + dwc_otg_core_global_regs_t *global_regs; + dwc_otg_host_global_regs_t *host_global_regs; + + hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + global_regs = core_if->core_global_regs; + host_global_regs = core_if->host_if->host_global_regs; + + WARN_ON(halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS); + + if (halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE || + halt_status == DWC_OTG_HC_XFER_AHB_ERR) { + /* + * Disable all channel interrupts except Ch Halted. The QTD + * and QH state associated with this transfer has been cleared + * (in the case of URB_DEQUEUE), so the channel needs to be + * shut down carefully to prevent crashes. + */ + hcintmsk_data_t hcintmsk; + hcintmsk.d32 = 0; + hcintmsk.b.chhltd = 1; + dwc_write_reg32(&hc_regs->hcintmsk, hcintmsk.d32); + + /* + * Make sure no other interrupts besides halt are currently + * pending. Handling another interrupt could cause a crash due + * to the QTD and QH state. + */ + dwc_write_reg32(&hc_regs->hcint, ~hcintmsk.d32); + + /* + * Make sure the halt status is set to URB_DEQUEUE or AHB_ERR + * even if the channel was already halted for some other + * reason. + */ + hc->halt_status = halt_status; + + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + if (hcchar.b.chen == 0) { + /* + * The channel is either already halted or it hasn't + * started yet. In DMA mode, the transfer may halt if + * it finishes normally or a condition occurs that + * requires driver intervention. Don't want to halt + * the channel again. In either Slave or DMA mode, + * it's possible that the transfer has been assigned + * to a channel, but not started yet when an URB is + * dequeued. Don't want to halt a channel that hasn't + * started yet. + */ + return; + } + } + + if (hc->halt_pending) { + /* + * A halt has already been issued for this channel. This might + * happen when a transfer is aborted by a higher level in + * the stack. + */ +#ifdef DEBUG + DWC_PRINT("*** %s: Channel %d, _hc->halt_pending already set ***\n", + __func__, hc->hc_num); + +/* dwc_otg_dump_global_registers(core_if); */ +/* dwc_otg_dump_host_registers(core_if); */ +#endif + return; + } + + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hcchar.b.chen = 1; + hcchar.b.chdis = 1; + + if (!core_if->dma_enable) { + /* Check for space in the request queue to issue the halt. */ + if (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL || + hc->ep_type == DWC_OTG_EP_TYPE_BULK) { + nptxsts.d32 = dwc_read_reg32(&global_regs->gnptxsts); + if (nptxsts.b.nptxqspcavail == 0) { + hcchar.b.chen = 0; + } + } + else { + hptxsts.d32 = dwc_read_reg32(&host_global_regs->hptxsts); + if ((hptxsts.b.ptxqspcavail == 0) || (core_if->queuing_high_bandwidth)) { + hcchar.b.chen = 0; + } + } + } + + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + + hc->halt_status = halt_status; + + if (hcchar.b.chen) { + hc->halt_pending = 1; + hc->halt_on_queue = 0; + } + else { + hc->halt_on_queue = 1; + } + + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); + DWC_DEBUGPL(DBG_HCDV, " hcchar: 0x%08x\n", hcchar.d32); + DWC_DEBUGPL(DBG_HCDV, " halt_pending: %d\n", hc->halt_pending); + DWC_DEBUGPL(DBG_HCDV, " halt_on_queue: %d\n", hc->halt_on_queue); + DWC_DEBUGPL(DBG_HCDV, " halt_status: %d\n", hc->halt_status); + + return; +} + +/** + * Clears the transfer state for a host channel. This function is normally + * called after a transfer is done and the host channel is being released. + * + * @param core_if Programming view of DWC_otg controller. + * @param hc Identifies the host channel to clean up. + */ +void dwc_otg_hc_cleanup(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) +{ + dwc_otg_hc_regs_t *hc_regs; + + hc->xfer_started = 0; + + /* + * Clear channel interrupt enables and any unhandled channel interrupt + * conditions. + */ + hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + dwc_write_reg32(&hc_regs->hcintmsk, 0); + dwc_write_reg32(&hc_regs->hcint, 0xFFFFFFFF); + +#ifdef DEBUG + del_timer(&core_if->hc_xfer_timer[hc->hc_num]); + { + hcchar_data_t hcchar; + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + if (hcchar.b.chdis) { + DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n", + __func__, hc->hc_num, hcchar.d32); + } + } +#endif +} + +/** + * Sets the channel property that indicates in which frame a periodic transfer + * should occur. This is always set to the _next_ frame. This function has no + * effect on non-periodic transfers. + * + * @param core_if Programming view of DWC_otg controller. + * @param hc Identifies the host channel to set up and its properties. + * @param hcchar Current value of the HCCHAR register for the specified host + * channel. + */ +static inline void hc_set_even_odd_frame(dwc_otg_core_if_t *core_if, + dwc_hc_t *hc, + hcchar_data_t *hcchar) +{ + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + hfnum_data_t hfnum; + hfnum.d32 = dwc_read_reg32(&core_if->host_if->host_global_regs->hfnum); + + /* 1 if _next_ frame is odd, 0 if it's even */ + hcchar->b.oddfrm = (hfnum.b.frnum & 0x1) ? 0 : 1; +#ifdef DEBUG + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR && hc->do_split && !hc->complete_split) { + switch (hfnum.b.frnum & 0x7) { + case 7: + core_if->hfnum_7_samples++; + core_if->hfnum_7_frrem_accum += hfnum.b.frrem; + break; + case 0: + core_if->hfnum_0_samples++; + core_if->hfnum_0_frrem_accum += hfnum.b.frrem; + break; + default: + core_if->hfnum_other_samples++; + core_if->hfnum_other_frrem_accum += hfnum.b.frrem; + break; + } + } +#endif + } +} + +#ifdef DEBUG +static void hc_xfer_timeout(unsigned long ptr) +{ + hc_xfer_info_t *xfer_info = (hc_xfer_info_t *)ptr; + int hc_num = xfer_info->hc->hc_num; + DWC_WARN("%s: timeout on channel %d\n", __func__, hc_num); + DWC_WARN(" start_hcchar_val 0x%08x\n", xfer_info->core_if->start_hcchar_val[hc_num]); +} +#endif + +/* + * This function does the setup for a data transfer for a host channel and + * starts the transfer. May be called in either Slave mode or DMA mode. In + * Slave mode, the caller must ensure that there is sufficient space in the + * request queue and Tx Data FIFO. + * + * For an OUT transfer in Slave mode, it loads a data packet into the + * appropriate FIFO. If necessary, additional data packets will be loaded in + * the Host ISR. + * + * For an IN transfer in Slave mode, a data packet is requested. The data + * packets are unloaded from the Rx FIFO in the Host ISR. If necessary, + * additional data packets are requested in the Host ISR. + * + * For a PING transfer in Slave mode, the Do Ping bit is set in the HCTSIZ + * register along with a packet count of 1 and the channel is enabled. This + * causes a single PING transaction to occur. Other fields in HCTSIZ are + * simply set to 0 since no data transfer occurs in this case. + * + * For a PING transfer in DMA mode, the HCTSIZ register is initialized with + * all the information required to perform the subsequent data transfer. In + * addition, the Do Ping bit is set in the HCTSIZ register. In this case, the + * controller performs the entire PING protocol, then starts the data + * transfer. + * + * @param core_if Programming view of DWC_otg controller. + * @param hc Information needed to initialize the host channel. The xfer_len + * value may be reduced to accommodate the max widths of the XferSize and + * PktCnt fields in the HCTSIZn register. The multi_count value may be changed + * to reflect the final xfer_len value. + */ +void dwc_otg_hc_start_transfer(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) +{ + hcchar_data_t hcchar; + hctsiz_data_t hctsiz; + uint16_t num_packets; + uint32_t max_hc_xfer_size = core_if->core_params->max_transfer_size; + uint16_t max_hc_pkt_count = core_if->core_params->max_packet_count; + dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + + hctsiz.d32 = 0; + + if (hc->do_ping) { + if (!core_if->dma_enable) { + dwc_otg_hc_do_ping(core_if, hc); + hc->xfer_started = 1; + return; + } + else { + hctsiz.b.dopng = 1; + } + } + + if (hc->do_split) { + num_packets = 1; + + if (hc->complete_split && !hc->ep_is_in) { + /* For CSPLIT OUT Transfer, set the size to 0 so the + * core doesn't expect any data written to the FIFO */ + hc->xfer_len = 0; + } + else if (hc->ep_is_in || (hc->xfer_len > hc->max_packet)) { + hc->xfer_len = hc->max_packet; + } + else if (!hc->ep_is_in && (hc->xfer_len > 188)) { + hc->xfer_len = 188; + } + + hctsiz.b.xfersize = hc->xfer_len; + } + else { + /* + * Ensure that the transfer length and packet count will fit + * in the widths allocated for them in the HCTSIZn register. + */ + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + /* + * Make sure the transfer size is no larger than one + * (micro)frame's worth of data. (A check was done + * when the periodic transfer was accepted to ensure + * that a (micro)frame's worth of data can be + * programmed into a channel.) + */ + uint32_t max_periodic_len = hc->multi_count * hc->max_packet; + if (hc->xfer_len > max_periodic_len) { + hc->xfer_len = max_periodic_len; + } + else { + } + } + else if (hc->xfer_len > max_hc_xfer_size) { + /* Make sure that xfer_len is a multiple of max packet size. */ + hc->xfer_len = max_hc_xfer_size - hc->max_packet + 1; + } + + if (hc->xfer_len > 0) { + num_packets = (hc->xfer_len + hc->max_packet - 1) / hc->max_packet; + if (num_packets > max_hc_pkt_count) { + num_packets = max_hc_pkt_count; + hc->xfer_len = num_packets * hc->max_packet; + } + } + else { + /* Need 1 packet for transfer length of 0. */ + num_packets = 1; + } + +#if 0 +//host testusb item 10, would do series of Control transfer +//with URB_SHORT_NOT_OK set in transfer_flags , +//changing the xfer_len would cause the test fail + if (hc->ep_is_in) { + /* Always program an integral # of max packets for IN transfers. */ + hc->xfer_len = num_packets * hc->max_packet; + } +#endif + + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + /* + * Make sure that the multi_count field matches the + * actual transfer length. + */ + hc->multi_count = num_packets; + } + + if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + /* Set up the initial PID for the transfer. */ + if (hc->speed == DWC_OTG_EP_SPEED_HIGH) { + if (hc->ep_is_in) { + if (hc->multi_count == 1) { + hc->data_pid_start = DWC_OTG_HC_PID_DATA0; + } + else if (hc->multi_count == 2) { + hc->data_pid_start = DWC_OTG_HC_PID_DATA1; + } + else { + hc->data_pid_start = DWC_OTG_HC_PID_DATA2; + } + } + else { + if (hc->multi_count == 1) { + hc->data_pid_start = DWC_OTG_HC_PID_DATA0; + } + else { + hc->data_pid_start = DWC_OTG_HC_PID_MDATA; + } + } + } + else { + hc->data_pid_start = DWC_OTG_HC_PID_DATA0; + } + } + + hctsiz.b.xfersize = hc->xfer_len; + } + + hc->start_pkt_count = num_packets; + hctsiz.b.pktcnt = num_packets; + hctsiz.b.pid = hc->data_pid_start; + dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); + + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); + DWC_DEBUGPL(DBG_HCDV, " Xfer Size: %d\n", hctsiz.b.xfersize); + DWC_DEBUGPL(DBG_HCDV, " Num Pkts: %d\n", hctsiz.b.pktcnt); + DWC_DEBUGPL(DBG_HCDV, " Start PID: %d\n", hctsiz.b.pid); + + if (core_if->dma_enable) { + dwc_write_reg32(&hc_regs->hcdma, (uint32_t)hc->xfer_buff); + } + + /* Start the split */ + if (hc->do_split) { + hcsplt_data_t hcsplt; + hcsplt.d32 = dwc_read_reg32 (&hc_regs->hcsplt); + hcsplt.b.spltena = 1; + dwc_write_reg32(&hc_regs->hcsplt, hcsplt.d32); + } + + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hcchar.b.multicnt = hc->multi_count; + hc_set_even_odd_frame(core_if, hc, &hcchar); +#ifdef DEBUG + core_if->start_hcchar_val[hc->hc_num] = hcchar.d32; + if (hcchar.b.chdis) { + DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n", + __func__, hc->hc_num, hcchar.d32); + } +#endif + + /* Set host channel enable after all other setup is complete. */ + hcchar.b.chen = 1; + hcchar.b.chdis = 0; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + + hc->xfer_started = 1; + hc->requests++; + + if (!core_if->dma_enable && + !hc->ep_is_in && hc->xfer_len > 0) { + /* Load OUT packet into the appropriate Tx FIFO. */ + dwc_otg_hc_write_packet(core_if, hc); + } + +#ifdef DEBUG + /* Start a timer for this transfer. */ + core_if->hc_xfer_timer[hc->hc_num].function = hc_xfer_timeout; + core_if->hc_xfer_info[hc->hc_num].core_if = core_if; + core_if->hc_xfer_info[hc->hc_num].hc = hc; + core_if->hc_xfer_timer[hc->hc_num].data = (unsigned long)(&core_if->hc_xfer_info[hc->hc_num]); + core_if->hc_xfer_timer[hc->hc_num].expires = jiffies + (HZ*10); + add_timer(&core_if->hc_xfer_timer[hc->hc_num]); +#endif +} + +/** + * This function continues a data transfer that was started by previous call + * to <code>dwc_otg_hc_start_transfer</code>. The caller must ensure there is + * sufficient space in the request queue and Tx Data FIFO. This function + * should only be called in Slave mode. In DMA mode, the controller acts + * autonomously to complete transfers programmed to a host channel. + * + * For an OUT transfer, a new data packet is loaded into the appropriate FIFO + * if there is any data remaining to be queued. For an IN transfer, another + * data packet is always requested. For the SETUP phase of a control transfer, + * this function does nothing. + * + * @return 1 if a new request is queued, 0 if no more requests are required + * for this transfer. + */ +int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) +{ + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); + + if (hc->do_split) { + /* SPLITs always queue just once per channel */ + return 0; + } + else if (hc->data_pid_start == DWC_OTG_HC_PID_SETUP) { + /* SETUPs are queued only once since they can't be NAKed. */ + return 0; + } + else if (hc->ep_is_in) { + /* + * Always queue another request for other IN transfers. If + * back-to-back INs are issued and NAKs are received for both, + * the driver may still be processing the first NAK when the + * second NAK is received. When the interrupt handler clears + * the NAK interrupt for the first NAK, the second NAK will + * not be seen. So we can't depend on the NAK interrupt + * handler to requeue a NAKed request. Instead, IN requests + * are issued each time this function is called. When the + * transfer completes, the extra requests for the channel will + * be flushed. + */ + hcchar_data_t hcchar; + dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hc_set_even_odd_frame(core_if, hc, &hcchar); + hcchar.b.chen = 1; + hcchar.b.chdis = 0; + DWC_DEBUGPL(DBG_HCDV, " IN xfer: hcchar = 0x%08x\n", hcchar.d32); + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + hc->requests++; + return 1; + } + else { + /* OUT transfers. */ + if (hc->xfer_count < hc->xfer_len) { + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + hcchar_data_t hcchar; + dwc_otg_hc_regs_t *hc_regs; + hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hc_set_even_odd_frame(core_if, hc, &hcchar); + } + + /* Load OUT packet into the appropriate Tx FIFO. */ + dwc_otg_hc_write_packet(core_if, hc); + hc->requests++; + return 1; + } + else { + return 0; + } + } +} + +/** + * Starts a PING transfer. This function should only be called in Slave mode. + * The Do Ping bit is set in the HCTSIZ register, then the channel is enabled. + */ +void dwc_otg_hc_do_ping(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) +{ + hcchar_data_t hcchar; + hctsiz_data_t hctsiz; + dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); + + hctsiz.d32 = 0; + hctsiz.b.dopng = 1; + hctsiz.b.pktcnt = 1; + dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); + + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hcchar.b.chen = 1; + hcchar.b.chdis = 0; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); +} + +/* + * This function writes a packet into the Tx FIFO associated with the Host + * Channel. For a channel associated with a non-periodic EP, the non-periodic + * Tx FIFO is written. For a channel associated with a periodic EP, the + * periodic Tx FIFO is written. This function should only be called in Slave + * mode. + * + * Upon return the xfer_buff and xfer_count fields in _hc are incremented by + * then number of bytes written to the Tx FIFO. + */ +void dwc_otg_hc_write_packet(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) +{ + uint32_t i; + uint32_t remaining_count; + uint32_t byte_count; + uint32_t dword_count; + + uint32_t *data_buff = (uint32_t *)(hc->xfer_buff); + uint32_t *data_fifo = core_if->data_fifo[hc->hc_num]; + + remaining_count = hc->xfer_len - hc->xfer_count; + if (remaining_count > hc->max_packet) { + byte_count = hc->max_packet; + } + else { + byte_count = remaining_count; + } + + dword_count = (byte_count + 3) / 4; + + if ((((unsigned long)data_buff) & 0x3) == 0) { + /* xfer_buff is DWORD aligned. */ + for (i = 0; i < dword_count; i++, data_buff++) + { + dwc_write_reg32(data_fifo, *data_buff); + } + } + else { + /* xfer_buff is not DWORD aligned. */ + for (i = 0; i < dword_count; i++, data_buff++) + { + dwc_write_reg32(data_fifo, get_unaligned(data_buff)); + } + } + + hc->xfer_count += byte_count; + hc->xfer_buff += byte_count; +} + +/** + * Gets the current USB frame number. This is the frame number from the last + * SOF packet. + */ +uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t *core_if) +{ + dsts_data_t dsts; + dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); + + /* read current frame/microframe number from DSTS register */ + return dsts.b.soffn; +} + +/** + * This function reads a setup packet from the Rx FIFO into the destination + * buffer. This function is called from the Rx Status Queue Level (RxStsQLvl) + * Interrupt routine when a SETUP packet has been received in Slave mode. + * + * @param core_if Programming view of DWC_otg controller. + * @param dest Destination buffer for packet data. + */ +void dwc_otg_read_setup_packet(dwc_otg_core_if_t *core_if, uint32_t *dest) +{ + /* Get the 8 bytes of a setup transaction data */ + + /* Pop 2 DWORDS off the receive data FIFO into memory */ + dest[0] = dwc_read_reg32(core_if->data_fifo[0]); + dest[1] = dwc_read_reg32(core_if->data_fifo[0]); +} + + +/** + * This function enables EP0 OUT to receive SETUP packets and configures EP0 + * IN for transmitting packets. It is normally called when the + * "Enumeration Done" interrupt occurs. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP0 data. + */ +void dwc_otg_ep0_activate(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + dsts_data_t dsts; + depctl_data_t diepctl; + depctl_data_t doepctl; + dctl_data_t dctl = { .d32 = 0 }; + + /* Read the Device Status and Endpoint 0 Control registers */ + dsts.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dsts); + diepctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl); + doepctl.d32 = dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl); + + /* Set the MPS of the IN EP based on the enumeration speed */ + switch (dsts.b.enumspd) { + case DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ: + case DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ: + case DWC_DSTS_ENUMSPD_FS_PHY_48MHZ: + diepctl.b.mps = DWC_DEP0CTL_MPS_64; + break; + case DWC_DSTS_ENUMSPD_LS_PHY_6MHZ: + diepctl.b.mps = DWC_DEP0CTL_MPS_8; + break; + } + + dwc_write_reg32(&dev_if->in_ep_regs[0]->diepctl, diepctl.d32); + + /* Enable OUT EP for receive */ + doepctl.b.epena = 1; + dwc_write_reg32(&dev_if->out_ep_regs[0]->doepctl, doepctl.d32); + +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV,"doepctl0=%0x\n", + dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl)); + DWC_DEBUGPL(DBG_PCDV,"diepctl0=%0x\n", + dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl)); +#endif + dctl.b.cgnpinnak = 1; + + dwc_modify_reg32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32); + DWC_DEBUGPL(DBG_PCDV,"dctl=%0x\n", + dwc_read_reg32(&dev_if->dev_global_regs->dctl)); +} + +/** + * This function activates an EP. The Device EP control register for + * the EP is configured as defined in the ep structure. Note: This + * function is not used for EP0. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to activate. + */ +void dwc_otg_ep_activate(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + depctl_data_t depctl; + volatile uint32_t *addr; + daint_data_t daintmsk = { .d32 = 0 }; + + DWC_DEBUGPL(DBG_PCDV, "%s() EP%d-%s\n", __func__, ep->num, + (ep->is_in?"IN":"OUT")); + + /* Read DEPCTLn register */ + if (ep->is_in == 1) { + addr = &dev_if->in_ep_regs[ep->num]->diepctl; + daintmsk.ep.in = 1<<ep->num; + } + else { + addr = &dev_if->out_ep_regs[ep->num]->doepctl; + daintmsk.ep.out = 1<<ep->num; + } + + /* If the EP is already active don't change the EP Control + * register. */ + depctl.d32 = dwc_read_reg32(addr); + if (!depctl.b.usbactep) { + depctl.b.mps = ep->maxpacket; + depctl.b.eptype = ep->type; + depctl.b.txfnum = ep->tx_fifo_num; + + if (ep->type == DWC_OTG_EP_TYPE_ISOC) { + depctl.b.setd0pid = 1; // ??? + } + else { + depctl.b.setd0pid = 1; + } + depctl.b.usbactep = 1; + + dwc_write_reg32(addr, depctl.d32); + DWC_DEBUGPL(DBG_PCDV,"DEPCTL(%.8x)=%08x\n",(u32)addr, dwc_read_reg32(addr)); + } + + /* Enable the Interrupt for this EP */ + if(core_if->multiproc_int_enable) { + if (ep->is_in == 1) { + diepmsk_data_t diepmsk = { .d32 = 0}; + diepmsk.b.xfercompl = 1; + diepmsk.b.timeout = 1; + diepmsk.b.epdisabled = 1; + diepmsk.b.ahberr = 1; + diepmsk.b.intknepmis = 1; + diepmsk.b.txfifoundrn = 1; //????? + + + if(core_if->dma_desc_enable) { + diepmsk.b.bna = 1; + } +/* + if(core_if->dma_enable) { + doepmsk.b.nak = 1; + } +*/ + dwc_write_reg32(&dev_if->dev_global_regs->diepeachintmsk[ep->num], diepmsk.d32); + + } else { + doepmsk_data_t doepmsk = { .d32 = 0}; + doepmsk.b.xfercompl = 1; + doepmsk.b.ahberr = 1; + doepmsk.b.epdisabled = 1; + + + if(core_if->dma_desc_enable) { + doepmsk.b.bna = 1; + } +/* + doepmsk.b.babble = 1; + doepmsk.b.nyet = 1; + doepmsk.b.nak = 1; +*/ + dwc_write_reg32(&dev_if->dev_global_regs->doepeachintmsk[ep->num], doepmsk.d32); + } + dwc_modify_reg32(&dev_if->dev_global_regs->deachintmsk, + 0, daintmsk.d32); + } else { + dwc_modify_reg32(&dev_if->dev_global_regs->daintmsk, + 0, daintmsk.d32); + } + + DWC_DEBUGPL(DBG_PCDV,"DAINTMSK=%0x\n", + dwc_read_reg32(&dev_if->dev_global_regs->daintmsk)); + + ep->stall_clear_flag = 0; + return; +} + +/** + * This function deactivates an EP. This is done by clearing the USB Active + * EP bit in the Device EP control register. Note: This function is not used + * for EP0. EP0 cannot be deactivated. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to deactivate. + */ +void dwc_otg_ep_deactivate(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + depctl_data_t depctl = { .d32 = 0 }; + volatile uint32_t *addr; + daint_data_t daintmsk = { .d32 = 0}; + + /* Read DEPCTLn register */ + if (ep->is_in == 1) { + addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; + daintmsk.ep.in = 1<<ep->num; + } + else { + addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; + daintmsk.ep.out = 1<<ep->num; + } + + //disabled ep only when ep is enabled + //or got halt in the loop in test in cv9 + depctl.d32=dwc_read_reg32(addr); + if(depctl.b.epena){ + if (ep->is_in == 1) { + diepint_data_t diepint; + dwc_otg_dev_in_ep_regs_t *in_reg=core_if->dev_if->in_ep_regs[ep->num]; + + //Set ep nak + depctl.d32=dwc_read_reg32(&in_reg->diepctl); + depctl.b.snak=1; + dwc_write_reg32(&in_reg->diepctl,depctl.d32); + + //wait for diepint.b.inepnakeff + diepint.d32=dwc_read_reg32(&in_reg->diepint); + while(!diepint.b.inepnakeff){ + udelay(1); + diepint.d32=dwc_read_reg32(&in_reg->diepint); + } + diepint.d32=0; + diepint.b.inepnakeff=1; + dwc_write_reg32(&in_reg->diepint,diepint.d32); + + //set ep disable and snak + depctl.d32=dwc_read_reg32(&in_reg->diepctl); + depctl.b.snak=1; + depctl.b.epdis=1; + dwc_write_reg32(&in_reg->diepctl,depctl.d32); + + //wait for diepint.b.epdisabled + diepint.d32=dwc_read_reg32(&in_reg->diepint); + while(!diepint.b.epdisabled){ + udelay(1); + diepint.d32=dwc_read_reg32(&in_reg->diepint); + } + diepint.d32=0; + diepint.b.epdisabled=1; + dwc_write_reg32(&in_reg->diepint,diepint.d32); + + //clear ep enable and disable bit + depctl.d32=dwc_read_reg32(&in_reg->diepctl); + depctl.b.epena=0; + depctl.b.epdis=0; + dwc_write_reg32(&in_reg->diepctl,depctl.d32); + + } +#if 0 +//following DWC OTG DataBook v2.72a, 6.4.2.1.3 Disabling an OUT Endpoint, +//but this doesn't work, the old code do. + else { + doepint_data_t doepint; + dwc_otg_dev_out_ep_regs_t *out_reg=core_if->dev_if->out_ep_regs[ep->num]; + dctl_data_t dctl; + gintsts_data_t gintsts; + + //set dctl global out nak + dctl.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dctl); + dctl.b.sgoutnak=1; + dwc_write_reg32(&core_if->dev_if->dev_global_regs->dctl,dctl.d32); + + //wait for gintsts.goutnakeff + gintsts.d32=dwc_read_reg32(&core_if->core_global_regs->gintsts); + while(!gintsts.b.goutnakeff){ + udelay(1); + gintsts.d32=dwc_read_reg32(&core_if->core_global_regs->gintsts); + } + gintsts.d32=0; + gintsts.b.goutnakeff=1; + dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); + + //set ep disable and snak + depctl.d32=dwc_read_reg32(&out_reg->doepctl); + depctl.b.snak=1; + depctl.b.epdis=1; + dwc_write_reg32(&out_reg->doepctl,depctl.d32); + + //wait for diepint.b.epdisabled + doepint.d32=dwc_read_reg32(&out_reg->doepint); + while(!doepint.b.epdisabled){ + udelay(1); + doepint.d32=dwc_read_reg32(&out_reg->doepint); + } + doepint.d32=0; + doepint.b.epdisabled=1; + dwc_write_reg32(&out_reg->doepint,doepint.d32); + + //clear ep enable and disable bit + depctl.d32=dwc_read_reg32(&out_reg->doepctl); + depctl.b.epena=0; + depctl.b.epdis=0; + dwc_write_reg32(&out_reg->doepctl,depctl.d32); + } +#endif + + depctl.d32=0; + depctl.b.usbactep = 0; + + if (ep->is_in == 0) { + if(core_if->dma_enable||core_if->dma_desc_enable) + depctl.b.epdis = 1; + } + + dwc_write_reg32(addr, depctl.d32); + } + + /* Disable the Interrupt for this EP */ + if(core_if->multiproc_int_enable) { + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->deachintmsk, + daintmsk.d32, 0); + + if (ep->is_in == 1) { + dwc_write_reg32(&core_if->dev_if->dev_global_regs->diepeachintmsk[ep->num], 0); + } else { + dwc_write_reg32(&core_if->dev_if->dev_global_regs->doepeachintmsk[ep->num], 0); + } + } else { + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->daintmsk, + daintmsk.d32, 0); + } + + if (ep->is_in == 1) { + DWC_DEBUGPL(DBG_PCD, "DIEPCTL(%.8x)=%08x DIEPTSIZ=%08x, DIEPINT=%.8x, DIEPDMA=%.8x, DTXFSTS=%.8x\n", + (u32)&core_if->dev_if->in_ep_regs[ep->num]->diepctl, + dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->diepctl), + dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz), + dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->diepint), + dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->diepdma), + dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dtxfsts)); + DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", + dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk), + dwc_read_reg32(&core_if->core_global_regs->gintmsk)); + } + else { + DWC_DEBUGPL(DBG_PCD, "DOEPCTL(%.8x)=%08x DOEPTSIZ=%08x, DOEPINT=%.8x, DOEPDMA=%.8x\n", + (u32)&core_if->dev_if->out_ep_regs[ep->num]->doepctl, + dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doepctl), + dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doeptsiz), + dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doepint), + dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doepdma)); + + DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", + dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk), + dwc_read_reg32(&core_if->core_global_regs->gintmsk)); + } + +} + +/** + * This function does the setup for a data transfer for an EP and + * starts the transfer. For an IN transfer, the packets will be + * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, + * the packets are unloaded from the Rx FIFO in the ISR. the ISR. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + */ +static void init_dma_desc_chain(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + dwc_otg_dma_desc_t* dma_desc; + uint32_t offset; + uint32_t xfer_est; + int i; + + ep->desc_cnt = ( ep->total_len / ep->maxxfer) + + ((ep->total_len % ep->maxxfer) ? 1 : 0); + if(!ep->desc_cnt) + ep->desc_cnt = 1; + + dma_desc = ep->desc_addr; + xfer_est = ep->total_len; + offset = 0; + for( i = 0; i < ep->desc_cnt; ++i) { + /** DMA Descriptor Setup */ + if(xfer_est > ep->maxxfer) { + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 0; + dma_desc->status.b.ioc = 0; + dma_desc->status.b.sp = 0; + dma_desc->status.b.bytes = ep->maxxfer; + dma_desc->buf = ep->dma_addr + offset; + dma_desc->status.b.bs = BS_HOST_READY; + + xfer_est -= ep->maxxfer; + offset += ep->maxxfer; + } else { + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + if(ep->is_in) { + dma_desc->status.b.sp = (xfer_est % ep->maxpacket) ? + 1 : ((ep->sent_zlp) ? 1 : 0); + dma_desc->status.b.bytes = xfer_est; + } else { + dma_desc->status.b.bytes = xfer_est + ((4 - (xfer_est & 0x3)) & 0x3) ; + } + + dma_desc->buf = ep->dma_addr + offset; + dma_desc->status.b.bs = BS_HOST_READY; + } + dma_desc ++; + } +} + +/** + * This function does the setup for a data transfer for an EP and + * starts the transfer. For an IN transfer, the packets will be + * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, + * the packets are unloaded from the Rx FIFO in the ISR. the ISR. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + */ + +void dwc_otg_ep_start_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + depctl_data_t depctl; + deptsiz_data_t deptsiz; + gintmsk_data_t intr_mask = { .d32 = 0}; + + DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s()\n", __func__); + + DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d " + "xfer_buff=%p start_xfer_buff=%p\n", + ep->num, (ep->is_in?"IN":"OUT"), ep->xfer_len, + ep->xfer_count, ep->xfer_buff, ep->start_xfer_buff); + + /* IN endpoint */ + if (ep->is_in == 1) { + dwc_otg_dev_in_ep_regs_t *in_regs = + core_if->dev_if->in_ep_regs[ep->num]; + + gnptxsts_data_t gtxstatus; + + gtxstatus.d32 = + dwc_read_reg32(&core_if->core_global_regs->gnptxsts); + + if(core_if->en_multiple_tx_fifo == 0 && gtxstatus.b.nptxqspcavail == 0) { +#ifdef DEBUG + DWC_PRINT("TX Queue Full (0x%0x)\n", gtxstatus.d32); +#endif + return; + } + + depctl.d32 = dwc_read_reg32(&(in_regs->diepctl)); + deptsiz.d32 = dwc_read_reg32(&(in_regs->dieptsiz)); + + ep->xfer_len += (ep->maxxfer < (ep->total_len - ep->xfer_len)) ? + ep->maxxfer : (ep->total_len - ep->xfer_len); + + /* Zero Length Packet? */ + if ((ep->xfer_len - ep->xfer_count) == 0) { + deptsiz.b.xfersize = 0; + deptsiz.b.pktcnt = 1; + } + else { + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + deptsiz.b.xfersize = ep->xfer_len - ep->xfer_count; + deptsiz.b.pktcnt = + (ep->xfer_len - ep->xfer_count - 1 + ep->maxpacket) / + ep->maxpacket; + } + + + /* Write the DMA register */ + if (core_if->dma_enable) { + if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { + ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); + } + DWC_DEBUGPL(DBG_PCDV, "ep%d dma_addr=%.8x\n", ep->num, ep->dma_addr); + + if (core_if->dma_desc_enable == 0) { + dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); + + VERIFY_PCD_DMA_ADDR(ep->dma_addr); + dwc_write_reg32 (&(in_regs->diepdma), + (uint32_t)ep->dma_addr); + } + else { + init_dma_desc_chain(core_if, ep); + /** DIEPDMAn Register write */ + + VERIFY_PCD_DMA_ADDR(ep->dma_desc_addr); + dwc_write_reg32(&in_regs->diepdma, ep->dma_desc_addr); + } + } + else + { + dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); + if(ep->type != DWC_OTG_EP_TYPE_ISOC) { + /** + * Enable the Non-Periodic Tx FIFO empty interrupt, + * or the Tx FIFO epmty interrupt in dedicated Tx FIFO mode, + * the data will be written into the fifo by the ISR. + */ + if(core_if->en_multiple_tx_fifo == 0) { + intr_mask.b.nptxfempty = 1; + dwc_modify_reg32(&core_if->core_global_regs->gintmsk, + intr_mask.d32, intr_mask.d32); + } + else { + /* Enable the Tx FIFO Empty Interrupt for this EP */ + if(ep->xfer_len > 0) { + uint32_t fifoemptymsk = 0; + fifoemptymsk = 1 << ep->num; + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, + 0, fifoemptymsk); + + } + } + } + } + + /* EP enable, IN data in FIFO */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + dwc_write_reg32(&in_regs->diepctl, depctl.d32); + + depctl.d32 = dwc_read_reg32 (&core_if->dev_if->in_ep_regs[0]->diepctl); + depctl.b.nextep = ep->num; + dwc_write_reg32 (&core_if->dev_if->in_ep_regs[0]->diepctl, depctl.d32); + + DWC_DEBUGPL(DBG_PCD, "DIEPCTL(%.8x)=%08x DIEPTSIZ=%08x, DIEPINT=%.8x, DIEPDMA=%.8x, DTXFSTS=%.8x\n", + (u32)&in_regs->diepctl, + dwc_read_reg32(&in_regs->diepctl), + dwc_read_reg32(&in_regs->dieptsiz), + dwc_read_reg32(&in_regs->diepint), + dwc_read_reg32(&in_regs->diepdma), + dwc_read_reg32(&in_regs->dtxfsts)); + DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", + dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk), + dwc_read_reg32(&core_if->core_global_regs->gintmsk)); + + } + else { + /* OUT endpoint */ + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[ep->num]; + + depctl.d32 = dwc_read_reg32(&(out_regs->doepctl)); + deptsiz.d32 = dwc_read_reg32(&(out_regs->doeptsiz)); + + ep->xfer_len += (ep->maxxfer < (ep->total_len - ep->xfer_len)) ? + ep->maxxfer : (ep->total_len - ep->xfer_len); + + /* Program the transfer size and packet count as follows: + * + * pktcnt = N + * xfersize = N * maxpacket + */ + if ((ep->xfer_len - ep->xfer_count) == 0) { + /* Zero Length Packet */ + deptsiz.b.xfersize = ep->maxpacket; + deptsiz.b.pktcnt = 1; + } + else { + deptsiz.b.pktcnt = + (ep->xfer_len - ep->xfer_count + (ep->maxpacket - 1)) / + ep->maxpacket; + ep->xfer_len = deptsiz.b.pktcnt * ep->maxpacket + ep->xfer_count; + deptsiz.b.xfersize = ep->xfer_len - ep->xfer_count; + } + + DWC_DEBUGPL(DBG_PCDV, "ep%d xfersize=%d pktcnt=%d\n", + ep->num, + deptsiz.b.xfersize, deptsiz.b.pktcnt); + + if (core_if->dma_enable) { + if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { + ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); + } + DWC_DEBUGPL(DBG_PCDV, "ep%d dma_addr=%.8x\n", + ep->num, + ep->dma_addr); + if (!core_if->dma_desc_enable) { + dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); + + VERIFY_PCD_DMA_ADDR(ep->dma_addr); + dwc_write_reg32 (&(out_regs->doepdma), + (uint32_t)ep->dma_addr); + } + else { + init_dma_desc_chain(core_if, ep); + + /** DOEPDMAn Register write */ + + VERIFY_PCD_DMA_ADDR(ep->dma_desc_addr); + dwc_write_reg32(&out_regs->doepdma, ep->dma_desc_addr); + } + } + else { + dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); + } + + /* EP enable */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + + dwc_write_reg32(&out_regs->doepctl, depctl.d32); + + DWC_DEBUGPL(DBG_PCD, "DOEPCTL(%.8x)=%08x DOEPTSIZ=%08x, DOEPINT=%.8x, DOEPDMA=%.8x\n", + (u32)&out_regs->doepctl, + dwc_read_reg32(&out_regs->doepctl), + dwc_read_reg32(&out_regs->doeptsiz), + dwc_read_reg32(&out_regs->doepint), + dwc_read_reg32(&out_regs->doepdma)); + + DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", + dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk), + dwc_read_reg32(&core_if->core_global_regs->gintmsk)); + } +} + +/** + * This function setup a zero length transfer in Buffer DMA and + * Slave modes for usb requests with zero field set + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +void dwc_otg_ep_start_zl_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + + depctl_data_t depctl; + deptsiz_data_t deptsiz; + gintmsk_data_t intr_mask = { .d32 = 0}; + + DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s()\n", __func__); + + /* IN endpoint */ + if (ep->is_in == 1) { + dwc_otg_dev_in_ep_regs_t *in_regs = + core_if->dev_if->in_ep_regs[ep->num]; + + depctl.d32 = dwc_read_reg32(&(in_regs->diepctl)); + deptsiz.d32 = dwc_read_reg32(&(in_regs->dieptsiz)); + + deptsiz.b.xfersize = 0; + deptsiz.b.pktcnt = 1; + + + /* Write the DMA register */ + if (core_if->dma_enable) { + if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { + ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); + } + if (core_if->dma_desc_enable == 0) { + dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); + + VERIFY_PCD_DMA_ADDR(ep->dma_addr); + dwc_write_reg32 (&(in_regs->diepdma), + (uint32_t)ep->dma_addr); + } + } + else { + dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); + /** + * Enable the Non-Periodic Tx FIFO empty interrupt, + * or the Tx FIFO epmty interrupt in dedicated Tx FIFO mode, + * the data will be written into the fifo by the ISR. + */ + if(core_if->en_multiple_tx_fifo == 0) { + intr_mask.b.nptxfempty = 1; + dwc_modify_reg32(&core_if->core_global_regs->gintmsk, + intr_mask.d32, intr_mask.d32); + } + else { + /* Enable the Tx FIFO Empty Interrupt for this EP */ + if(ep->xfer_len > 0) { + uint32_t fifoemptymsk = 0; + fifoemptymsk = 1 << ep->num; + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, + 0, fifoemptymsk); + } + } + } + + /* EP enable, IN data in FIFO */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + dwc_write_reg32(&in_regs->diepctl, depctl.d32); + + depctl.d32 = dwc_read_reg32 (&core_if->dev_if->in_ep_regs[0]->diepctl); + depctl.b.nextep = ep->num; + dwc_write_reg32 (&core_if->dev_if->in_ep_regs[0]->diepctl, depctl.d32); + + } + else { + /* OUT endpoint */ + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[ep->num]; + + depctl.d32 = dwc_read_reg32(&(out_regs->doepctl)); + deptsiz.d32 = dwc_read_reg32(&(out_regs->doeptsiz)); + + /* Zero Length Packet */ + deptsiz.b.xfersize = ep->maxpacket; + deptsiz.b.pktcnt = 1; + + if (core_if->dma_enable) { + if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { + ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); + } + if (!core_if->dma_desc_enable) { + dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); + + + VERIFY_PCD_DMA_ADDR(ep->dma_addr); + dwc_write_reg32 (&(out_regs->doepdma), + (uint32_t)ep->dma_addr); + } + } + else { + dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); + } + + /* EP enable */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + + dwc_write_reg32(&out_regs->doepctl, depctl.d32); + + } +} + +/** + * This function does the setup for a data transfer for EP0 and starts + * the transfer. For an IN transfer, the packets will be loaded into + * the appropriate Tx FIFO in the ISR. For OUT transfers, the packets are + * unloaded from the Rx FIFO in the ISR. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP0 data. + */ +void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + depctl_data_t depctl; + deptsiz0_data_t deptsiz; + gintmsk_data_t intr_mask = { .d32 = 0}; + dwc_otg_dma_desc_t* dma_desc; + + DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d " + "xfer_buff=%p start_xfer_buff=%p, dma_addr=%.8x\n", + ep->num, (ep->is_in?"IN":"OUT"), ep->xfer_len, + ep->xfer_count, ep->xfer_buff, ep->start_xfer_buff,ep->dma_addr); + + ep->total_len = ep->xfer_len; + + /* IN endpoint */ + if (ep->is_in == 1) { + dwc_otg_dev_in_ep_regs_t *in_regs = + core_if->dev_if->in_ep_regs[0]; + + gnptxsts_data_t gtxstatus; + + gtxstatus.d32 = + dwc_read_reg32(&core_if->core_global_regs->gnptxsts); + + if(core_if->en_multiple_tx_fifo == 0 && gtxstatus.b.nptxqspcavail == 0) { +#ifdef DEBUG + deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz); + DWC_DEBUGPL(DBG_PCD,"DIEPCTL0=%0x\n", + dwc_read_reg32(&in_regs->diepctl)); + DWC_DEBUGPL(DBG_PCD, "DIEPTSIZ0=%0x (sz=%d, pcnt=%d)\n", + deptsiz.d32, + deptsiz.b.xfersize, deptsiz.b.pktcnt); + DWC_PRINT("TX Queue or FIFO Full (0x%0x)\n", + gtxstatus.d32); +#endif + return; + } + + + depctl.d32 = dwc_read_reg32(&in_regs->diepctl); + deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz); + + /* Zero Length Packet? */ + if (ep->xfer_len == 0) { + deptsiz.b.xfersize = 0; + deptsiz.b.pktcnt = 1; + } + else { + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + if (ep->xfer_len > ep->maxpacket) { + ep->xfer_len = ep->maxpacket; + deptsiz.b.xfersize = ep->maxpacket; + } + else { + deptsiz.b.xfersize = ep->xfer_len; + } + deptsiz.b.pktcnt = 1; + + } + DWC_DEBUGPL(DBG_PCDV, "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", + ep->xfer_len, + deptsiz.b.xfersize, deptsiz.b.pktcnt, deptsiz.d32); + /* Write the DMA register */ + if (core_if->dma_enable) { + if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { + ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); + } + if(core_if->dma_desc_enable == 0) { + dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); + + VERIFY_PCD_DMA_ADDR(ep->dma_addr); + dwc_write_reg32 (&(in_regs->diepdma), + (uint32_t)ep->dma_addr); + } + else { + dma_desc = core_if->dev_if->in_desc_addr; + + /** DMA Descriptor Setup */ + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + dma_desc->status.b.sp = (ep->xfer_len == ep->maxpacket) ? 0 : 1; + dma_desc->status.b.bytes = ep->xfer_len; + dma_desc->buf = ep->dma_addr; + dma_desc->status.b.bs = BS_HOST_READY; + + /** DIEPDMA0 Register write */ + + VERIFY_PCD_DMA_ADDR(core_if->dev_if->dma_in_desc_addr); + dwc_write_reg32(&in_regs->diepdma, core_if->dev_if->dma_in_desc_addr); + } + } + else { + dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); + } + + /* EP enable, IN data in FIFO */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + dwc_write_reg32(&in_regs->diepctl, depctl.d32); + + /** + * Enable the Non-Periodic Tx FIFO empty interrupt, the + * data will be written into the fifo by the ISR. + */ + if (!core_if->dma_enable) { + if(core_if->en_multiple_tx_fifo == 0) { + intr_mask.b.nptxfempty = 1; + dwc_modify_reg32(&core_if->core_global_regs->gintmsk, + intr_mask.d32, intr_mask.d32); + } + else { + /* Enable the Tx FIFO Empty Interrupt for this EP */ + if(ep->xfer_len > 0) { + uint32_t fifoemptymsk = 0; + fifoemptymsk |= 1 << ep->num; + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, + 0, fifoemptymsk); + } + } + } + } + else { + /* OUT endpoint */ + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[0]; + + depctl.d32 = dwc_read_reg32(&out_regs->doepctl); + deptsiz.d32 = dwc_read_reg32(&out_regs->doeptsiz); + + /* Program the transfer size and packet count as follows: + * xfersize = N * (maxpacket + 4 - (maxpacket % 4)) + * pktcnt = N */ + /* Zero Length Packet */ + deptsiz.b.xfersize = ep->maxpacket; + deptsiz.b.pktcnt = 1; + + DWC_DEBUGPL(DBG_PCDV, "len=%d xfersize=%d pktcnt=%d\n", + ep->xfer_len, + deptsiz.b.xfersize, deptsiz.b.pktcnt); + + if (core_if->dma_enable) { + if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { + ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); + } + if(!core_if->dma_desc_enable) { + dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); + + + VERIFY_PCD_DMA_ADDR(ep->dma_addr); + dwc_write_reg32 (&(out_regs->doepdma), + (uint32_t)ep->dma_addr); + } + else { + dma_desc = core_if->dev_if->out_desc_addr; + + /** DMA Descriptor Setup */ + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + dma_desc->status.b.bytes = ep->maxpacket; + dma_desc->buf = ep->dma_addr; + dma_desc->status.b.bs = BS_HOST_READY; + + /** DOEPDMA0 Register write */ + VERIFY_PCD_DMA_ADDR(core_if->dev_if->dma_out_desc_addr); + dwc_write_reg32(&out_regs->doepdma, core_if->dev_if->dma_out_desc_addr); + } + } + else { + dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); + } + + /* EP enable */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + dwc_write_reg32 (&(out_regs->doepctl), depctl.d32); + } +} + +/** + * This function continues control IN transfers started by + * dwc_otg_ep0_start_transfer, when the transfer does not fit in a + * single packet. NOTE: The DIEPCTL0/DOEPCTL0 registers only have one + * bit for the packet count. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP0 data. + */ +void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + depctl_data_t depctl; + deptsiz0_data_t deptsiz; + gintmsk_data_t intr_mask = { .d32 = 0}; + dwc_otg_dma_desc_t* dma_desc; + + if (ep->is_in == 1) { + dwc_otg_dev_in_ep_regs_t *in_regs = + core_if->dev_if->in_ep_regs[0]; + gnptxsts_data_t tx_status = { .d32 = 0 }; + + tx_status.d32 = dwc_read_reg32(&core_if->core_global_regs->gnptxsts); + /** @todo Should there be check for room in the Tx + * Status Queue. If not remove the code above this comment. */ + + depctl.d32 = dwc_read_reg32(&in_regs->diepctl); + deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz); + + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + + + if(core_if->dma_desc_enable == 0) { + deptsiz.b.xfersize = (ep->total_len - ep->xfer_count) > ep->maxpacket ? ep->maxpacket : + (ep->total_len - ep->xfer_count); + deptsiz.b.pktcnt = 1; + if(core_if->dma_enable == 0) { + ep->xfer_len += deptsiz.b.xfersize; + } else { + ep->xfer_len = deptsiz.b.xfersize; + } + dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); + } + else { + ep->xfer_len = (ep->total_len - ep->xfer_count) > ep->maxpacket ? ep->maxpacket : + (ep->total_len - ep->xfer_count); + + dma_desc = core_if->dev_if->in_desc_addr; + + /** DMA Descriptor Setup */ + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + dma_desc->status.b.sp = (ep->xfer_len == ep->maxpacket) ? 0 : 1; + dma_desc->status.b.bytes = ep->xfer_len; + dma_desc->buf = ep->dma_addr; + dma_desc->status.b.bs = BS_HOST_READY; + + + /** DIEPDMA0 Register write */ + VERIFY_PCD_DMA_ADDR(core_if->dev_if->dma_in_desc_addr); + dwc_write_reg32(&in_regs->diepdma, core_if->dev_if->dma_in_desc_addr); + } + + + DWC_DEBUGPL(DBG_PCDV, "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", + ep->xfer_len, + deptsiz.b.xfersize, deptsiz.b.pktcnt, deptsiz.d32); + + /* Write the DMA register */ + if (core_if->hwcfg2.b.architecture == DWC_INT_DMA_ARCH) { + if(core_if->dma_desc_enable == 0){ + + VERIFY_PCD_DMA_ADDR(ep->dma_addr); + dwc_write_reg32 (&(in_regs->diepdma), (uint32_t)ep->dma_addr); + } + } + + /* EP enable, IN data in FIFO */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + dwc_write_reg32(&in_regs->diepctl, depctl.d32); + + /** + * Enable the Non-Periodic Tx FIFO empty interrupt, the + * data will be written into the fifo by the ISR. + */ + if (!core_if->dma_enable) { + if(core_if->en_multiple_tx_fifo == 0) { + /* First clear it from GINTSTS */ + intr_mask.b.nptxfempty = 1; + dwc_modify_reg32(&core_if->core_global_regs->gintmsk, + intr_mask.d32, intr_mask.d32); + + } + else { + /* Enable the Tx FIFO Empty Interrupt for this EP */ + if(ep->xfer_len > 0) { + uint32_t fifoemptymsk = 0; + fifoemptymsk |= 1 << ep->num; + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, + 0, fifoemptymsk); + } + } + } + } + else { + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[0]; + + + depctl.d32 = dwc_read_reg32(&out_regs->doepctl); + deptsiz.d32 = dwc_read_reg32(&out_regs->doeptsiz); + + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + deptsiz.b.xfersize = ep->maxpacket; + deptsiz.b.pktcnt = 1; + + + if(core_if->dma_desc_enable == 0) { + dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); + } + else { + dma_desc = core_if->dev_if->out_desc_addr; + + /** DMA Descriptor Setup */ + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + dma_desc->status.b.bytes = ep->maxpacket; + dma_desc->buf = ep->dma_addr; + dma_desc->status.b.bs = BS_HOST_READY; + + /** DOEPDMA0 Register write */ + VERIFY_PCD_DMA_ADDR(core_if->dev_if->dma_out_desc_addr); + dwc_write_reg32(&out_regs->doepdma, core_if->dev_if->dma_out_desc_addr); + } + + + DWC_DEBUGPL(DBG_PCDV, "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", + ep->xfer_len, + deptsiz.b.xfersize, deptsiz.b.pktcnt, deptsiz.d32); + + /* Write the DMA register */ + if (core_if->hwcfg2.b.architecture == DWC_INT_DMA_ARCH) { + if(core_if->dma_desc_enable == 0){ + + VERIFY_PCD_DMA_ADDR(ep->dma_addr); + dwc_write_reg32 (&(out_regs->doepdma), (uint32_t)ep->dma_addr); + } + } + + /* EP enable, IN data in FIFO */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + dwc_write_reg32(&out_regs->doepctl, depctl.d32); + + } +} + +#ifdef DEBUG +void dump_msg(const u8 *buf, unsigned int length) +{ + unsigned int start, num, i; + char line[52], *p; + + if (length >= 512) + return; + start = 0; + while (length > 0) { + num = min(length, 16u); + p = line; + for (i = 0; i < num; ++i) + { + if (i == 8) + *p++ = ' '; + sprintf(p, " %02x", buf[i]); + p += 3; + } + *p = 0; + DWC_PRINT("%6x: %s\n", start, line); + buf += num; + start += num; + length -= num; + } +} +#else +static inline void dump_msg(const u8 *buf, unsigned int length) +{ +} +#endif + +/** + * This function writes a packet into the Tx FIFO associated with the + * EP. For non-periodic EPs the non-periodic Tx FIFO is written. For + * periodic EPs the periodic Tx FIFO associated with the EP is written + * with all packets for the next micro-frame. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to write packet for. + * @param dma Indicates if DMA is being used. + */ +void dwc_otg_ep_write_packet(dwc_otg_core_if_t *core_if, dwc_ep_t *ep, int dma) +{ + /** + * The buffer is padded to DWORD on a per packet basis in + * slave/dma mode if the MPS is not DWORD aligned. The last + * packet, if short, is also padded to a multiple of DWORD. + * + * ep->xfer_buff always starts DWORD aligned in memory and is a + * multiple of DWORD in length + * + * ep->xfer_len can be any number of bytes + * + * ep->xfer_count is a multiple of ep->maxpacket until the last + * packet + * + * FIFO access is DWORD */ + + uint32_t i; + uint32_t byte_count; + uint32_t dword_count; + uint32_t *fifo; + uint32_t *data_buff = (uint32_t *)ep->xfer_buff; + + DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p)\n", __func__, core_if, ep); + if (ep->xfer_count >= ep->xfer_len) { + DWC_WARN("%s() No data for EP%d!!!\n", __func__, ep->num); + return; + } + + /* Find the byte length of the packet either short packet or MPS */ + if ((ep->xfer_len - ep->xfer_count) < ep->maxpacket) { + byte_count = ep->xfer_len - ep->xfer_count; + } + else { + byte_count = ep->maxpacket; + } + + /* Find the DWORD length, padded by extra bytes as neccessary if MPS + * is not a multiple of DWORD */ + dword_count = (byte_count + 3) / 4; + +#ifdef VERBOSE + dump_msg(ep->xfer_buff, byte_count); +#endif + + /**@todo NGS Where are the Periodic Tx FIFO addresses + * intialized? What should this be? */ + + fifo = core_if->data_fifo[ep->num]; + + + DWC_DEBUGPL((DBG_PCDV|DBG_CILV), "fifo=%p buff=%p *p=%08x bc=%d\n", fifo, data_buff, *data_buff, byte_count); + + if (!dma) { + for (i=0; i<dword_count; i++, data_buff++) { + dwc_write_reg32(fifo, *data_buff); + } + } + + ep->xfer_count += byte_count; + ep->xfer_buff += byte_count; + ep->dma_addr += byte_count; +} + +/** + * Set the EP STALL. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to set the stall on. + */ +void dwc_otg_ep_set_stall(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + depctl_data_t depctl; + volatile uint32_t *depctl_addr; + + DWC_DEBUGPL(DBG_PCDV, "%s ep%d-%s1\n", __func__, ep->num, + (ep->is_in?"IN":"OUT")); + + DWC_PRINT("%s ep%d-%s\n", __func__, ep->num, + (ep->is_in?"in":"out")); + + if (ep->is_in == 1) { + depctl_addr = &(core_if->dev_if->in_ep_regs[ep->num]->diepctl); + depctl.d32 = dwc_read_reg32(depctl_addr); + + /* set the disable and stall bits */ +#if 0 +//epdis is set here but not cleared at latter dwc_otg_ep_clear_stall, +//which cause the testusb item 13 failed(Host:pc, device: otg device) + if (depctl.b.epena) { + depctl.b.epdis = 1; + } +#endif + depctl.b.stall = 1; + dwc_write_reg32(depctl_addr, depctl.d32); + } + else { + depctl_addr = &(core_if->dev_if->out_ep_regs[ep->num]->doepctl); + depctl.d32 = dwc_read_reg32(depctl_addr); + + /* set the stall bit */ + depctl.b.stall = 1; + dwc_write_reg32(depctl_addr, depctl.d32); + } + + DWC_DEBUGPL(DBG_PCDV,"%s: DEPCTL(%.8x)=%0x\n",__func__,(u32)depctl_addr,dwc_read_reg32(depctl_addr)); + + return; +} + +/** + * Clear the EP STALL. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to clear stall from. + */ +void dwc_otg_ep_clear_stall(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + depctl_data_t depctl; + volatile uint32_t *depctl_addr; + + DWC_DEBUGPL(DBG_PCD, "%s ep%d-%s\n", __func__, ep->num, + (ep->is_in?"IN":"OUT")); + + if (ep->is_in == 1) { + depctl_addr = &(core_if->dev_if->in_ep_regs[ep->num]->diepctl); + } + else { + depctl_addr = &(core_if->dev_if->out_ep_regs[ep->num]->doepctl); + } + + depctl.d32 = dwc_read_reg32(depctl_addr); + + /* clear the stall bits */ + depctl.b.stall = 0; + + /* + * USB Spec 9.4.5: For endpoints using data toggle, regardless + * of whether an endpoint has the Halt feature set, a + * ClearFeature(ENDPOINT_HALT) request always results in the + * data toggle being reinitialized to DATA0. + */ + if (ep->type == DWC_OTG_EP_TYPE_INTR || + ep->type == DWC_OTG_EP_TYPE_BULK) { + depctl.b.setd0pid = 1; /* DATA0 */ + } + + dwc_write_reg32(depctl_addr, depctl.d32); + DWC_DEBUGPL(DBG_PCD,"DEPCTL=%0x\n",dwc_read_reg32(depctl_addr)); + return; +} + +/** + * This function reads a packet from the Rx FIFO into the destination + * buffer. To read SETUP data use dwc_otg_read_setup_packet. + * + * @param core_if Programming view of DWC_otg controller. + * @param dest Destination buffer for the packet. + * @param bytes Number of bytes to copy to the destination. + */ +void dwc_otg_read_packet(dwc_otg_core_if_t *core_if, + uint8_t *dest, + uint16_t bytes) +{ + int i; + int word_count = (bytes + 3) / 4; + + volatile uint32_t *fifo = core_if->data_fifo[0]; + uint32_t *data_buff = (uint32_t *)dest; + + /** + * @todo Account for the case where _dest is not dword aligned. This + * requires reading data from the FIFO into a uint32_t temp buffer, + * then moving it into the data buffer. + */ + + DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p,%d)\n", __func__, + core_if, dest, bytes); + + for (i=0; i<word_count; i++, data_buff++) + { + *data_buff = dwc_read_reg32(fifo); + } + + return; +} + + + +/** + * This functions reads the device registers and prints them + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_dump_dev_registers(dwc_otg_core_if_t *core_if) +{ + int i; + volatile uint32_t *addr; + + DWC_PRINT("Device Global Registers\n"); + addr=&core_if->dev_if->dev_global_regs->dcfg; + DWC_PRINT("DCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->dev_global_regs->dctl; + DWC_PRINT("DCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->dev_global_regs->dsts; + DWC_PRINT("DSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->dev_global_regs->diepmsk; + DWC_PRINT("DIEPMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->dev_global_regs->doepmsk; + DWC_PRINT("DOEPMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->dev_global_regs->daint; + DWC_PRINT("DAINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->dev_global_regs->daintmsk; + DWC_PRINT("DAINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->dev_global_regs->dtknqr1; + DWC_PRINT("DTKNQR1 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + if (core_if->hwcfg2.b.dev_token_q_depth > 6) { + addr=&core_if->dev_if->dev_global_regs->dtknqr2; + DWC_PRINT("DTKNQR2 @0x%08X : 0x%08X\n", + (uint32_t)addr,dwc_read_reg32(addr)); + } + + addr=&core_if->dev_if->dev_global_regs->dvbusdis; + DWC_PRINT("DVBUSID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + + addr=&core_if->dev_if->dev_global_regs->dvbuspulse; + DWC_PRINT("DVBUSPULSE @0x%08X : 0x%08X\n", + (uint32_t)addr,dwc_read_reg32(addr)); + + if (core_if->hwcfg2.b.dev_token_q_depth > 14) { + addr=&core_if->dev_if->dev_global_regs->dtknqr3_dthrctl; + DWC_PRINT("DTKNQR3_DTHRCTL @0x%08X : 0x%08X\n", + (uint32_t)addr, dwc_read_reg32(addr)); + } +/* + if (core_if->hwcfg2.b.dev_token_q_depth > 22) { + addr=&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk; + DWC_PRINT("DTKNQR4 @0x%08X : 0x%08X\n", + (uint32_t)addr, dwc_read_reg32(addr)); + } +*/ + addr=&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk; + DWC_PRINT("FIFOEMPMSK @0x%08X : 0x%08X\n", (uint32_t)addr, dwc_read_reg32(addr)); + + addr=&core_if->dev_if->dev_global_regs->deachint; + DWC_PRINT("DEACHINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->dev_global_regs->deachintmsk; + DWC_PRINT("DEACHINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + + for (i=0; i<= core_if->dev_if->num_in_eps; i++) { + addr=&core_if->dev_if->dev_global_regs->diepeachintmsk[i]; + DWC_PRINT("DIEPEACHINTMSK[%d] @0x%08X : 0x%08X\n", i, (uint32_t)addr, dwc_read_reg32(addr)); + } + + + for (i=0; i<= core_if->dev_if->num_out_eps; i++) { + addr=&core_if->dev_if->dev_global_regs->doepeachintmsk[i]; + DWC_PRINT("DOEPEACHINTMSK[%d] @0x%08X : 0x%08X\n", i, (uint32_t)addr, dwc_read_reg32(addr)); + } + + for (i=0; i<= core_if->dev_if->num_in_eps; i++) { + DWC_PRINT("Device IN EP %d Registers\n", i); + addr=&core_if->dev_if->in_ep_regs[i]->diepctl; + DWC_PRINT("DIEPCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->in_ep_regs[i]->diepint; + DWC_PRINT("DIEPINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->in_ep_regs[i]->dieptsiz; + DWC_PRINT("DIETSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->in_ep_regs[i]->diepdma; + DWC_PRINT("DIEPDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->in_ep_regs[i]->dtxfsts; + DWC_PRINT("DTXFSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + //reading depdmab in non desc dma mode would halt the ahb bus... + if(core_if->dma_desc_enable){ + addr=&core_if->dev_if->in_ep_regs[i]->diepdmab; + DWC_PRINT("DIEPDMAB @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + } + } + + + for (i=0; i<= core_if->dev_if->num_out_eps; i++) { + DWC_PRINT("Device OUT EP %d Registers\n", i); + addr=&core_if->dev_if->out_ep_regs[i]->doepctl; + DWC_PRINT("DOEPCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->out_ep_regs[i]->doepfn; + DWC_PRINT("DOEPFN @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->out_ep_regs[i]->doepint; + DWC_PRINT("DOEPINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->out_ep_regs[i]->doeptsiz; + DWC_PRINT("DOETSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->dev_if->out_ep_regs[i]->doepdma; + DWC_PRINT("DOEPDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + + //reading depdmab in non desc dma mode would halt the ahb bus... + if(core_if->dma_desc_enable){ + addr=&core_if->dev_if->out_ep_regs[i]->doepdmab; + DWC_PRINT("DOEPDMAB @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + } + + } + + + + return; +} + +/** + * This functions reads the SPRAM and prints its content + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_dump_spram(dwc_otg_core_if_t *core_if) +{ + volatile uint8_t *addr, *start_addr, *end_addr; + + DWC_PRINT("SPRAM Data:\n"); + start_addr = (void*)core_if->core_global_regs; + DWC_PRINT("Base Address: 0x%8X\n", (uint32_t)start_addr); + start_addr += 0x00028000; + end_addr=(void*)core_if->core_global_regs; + end_addr += 0x000280e0; + + for(addr = start_addr; addr < end_addr; addr+=16) + { + DWC_PRINT("0x%8X:\t%2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X\n", (uint32_t)addr, + addr[0], + addr[1], + addr[2], + addr[3], + addr[4], + addr[5], + addr[6], + addr[7], + addr[8], + addr[9], + addr[10], + addr[11], + addr[12], + addr[13], + addr[14], + addr[15] + ); + } + + return; +} +/** + * This function reads the host registers and prints them + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_dump_host_registers(dwc_otg_core_if_t *core_if) +{ + int i; + volatile uint32_t *addr; + + DWC_PRINT("Host Global Registers\n"); + addr=&core_if->host_if->host_global_regs->hcfg; + DWC_PRINT("HCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->host_if->host_global_regs->hfir; + DWC_PRINT("HFIR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->host_if->host_global_regs->hfnum; + DWC_PRINT("HFNUM @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->host_if->host_global_regs->hptxsts; + DWC_PRINT("HPTXSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->host_if->host_global_regs->haint; + DWC_PRINT("HAINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->host_if->host_global_regs->haintmsk; + DWC_PRINT("HAINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=core_if->host_if->hprt0; + DWC_PRINT("HPRT0 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + + for (i=0; i<core_if->core_params->host_channels; i++) + { + DWC_PRINT("Host Channel %d Specific Registers\n", i); + addr=&core_if->host_if->hc_regs[i]->hcchar; + DWC_PRINT("HCCHAR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->host_if->hc_regs[i]->hcsplt; + DWC_PRINT("HCSPLT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->host_if->hc_regs[i]->hcint; + DWC_PRINT("HCINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->host_if->hc_regs[i]->hcintmsk; + DWC_PRINT("HCINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->host_if->hc_regs[i]->hctsiz; + DWC_PRINT("HCTSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->host_if->hc_regs[i]->hcdma; + DWC_PRINT("HCDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + } + return; +} + +/** + * This function reads the core global registers and prints them + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_dump_global_registers(dwc_otg_core_if_t *core_if) +{ + int i,size; + char* str; + volatile uint32_t *addr; + + DWC_PRINT("Core Global Registers\n"); + addr=&core_if->core_global_regs->gotgctl; + DWC_PRINT("GOTGCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->gotgint; + DWC_PRINT("GOTGINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->gahbcfg; + DWC_PRINT("GAHBCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->gusbcfg; + DWC_PRINT("GUSBCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->grstctl; + DWC_PRINT("GRSTCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->gintsts; + DWC_PRINT("GINTSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->gintmsk; + DWC_PRINT("GINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->grxstsr; + DWC_PRINT("GRXSTSR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + //addr=&core_if->core_global_regs->grxstsp; + //DWC_PRINT("GRXSTSP @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->grxfsiz; + DWC_PRINT("GRXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->gnptxfsiz; + DWC_PRINT("GNPTXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->gnptxsts; + DWC_PRINT("GNPTXSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->gi2cctl; + DWC_PRINT("GI2CCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->gpvndctl; + DWC_PRINT("GPVNDCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->ggpio; + DWC_PRINT("GGPIO @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->guid; + DWC_PRINT("GUID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->gsnpsid; + DWC_PRINT("GSNPSID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->ghwcfg1; + DWC_PRINT("GHWCFG1 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->ghwcfg2; + DWC_PRINT("GHWCFG2 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->ghwcfg3; + DWC_PRINT("GHWCFG3 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->ghwcfg4; + DWC_PRINT("GHWCFG4 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + addr=&core_if->core_global_regs->hptxfsiz; + DWC_PRINT("HPTXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); + + size=(core_if->hwcfg4.b.ded_fifo_en)? + core_if->hwcfg4.b.num_in_eps:core_if->hwcfg4.b.num_dev_perio_in_ep; + str=(core_if->hwcfg4.b.ded_fifo_en)?"DIEPTXF":"DPTXFSIZ"; + for (i=0; i<size; i++) + { + addr=&core_if->core_global_regs->dptxfsiz_dieptxf[i]; + DWC_PRINT("%s[%d] @0x%08X : 0x%08X\n",str,i,(uint32_t)addr,dwc_read_reg32(addr)); + } +} + +/** + * Flush a Tx FIFO. + * + * @param core_if Programming view of DWC_otg controller. + * @param num Tx FIFO to flush. + */ +void dwc_otg_flush_tx_fifo(dwc_otg_core_if_t *core_if, + const int num) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + volatile grstctl_t greset = { .d32 = 0}; + int count = 0; + + DWC_DEBUGPL((DBG_CIL|DBG_PCDV), "Flush Tx FIFO %d\n", num); + + greset.b.txfflsh = 1; + greset.b.txfnum = num; + dwc_write_reg32(&global_regs->grstctl, greset.d32); + + do { + greset.d32 = dwc_read_reg32(&global_regs->grstctl); + if (++count > 10000) { + DWC_WARN("%s() HANG! GRSTCTL=%0x GNPTXSTS=0x%08x\n", + __func__, greset.d32, + dwc_read_reg32(&global_regs->gnptxsts)); + break; + } + } + while (greset.b.txfflsh == 1); + + /* Wait for 3 PHY Clocks*/ + UDELAY(1); +} + +/** + * Flush Rx FIFO. + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_flush_rx_fifo(dwc_otg_core_if_t *core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + volatile grstctl_t greset = { .d32 = 0}; + int count = 0; + + DWC_DEBUGPL((DBG_CIL|DBG_PCDV), "%s\n", __func__); + /* + * + */ + greset.b.rxfflsh = 1; + dwc_write_reg32(&global_regs->grstctl, greset.d32); + + do { + greset.d32 = dwc_read_reg32(&global_regs->grstctl); + if (++count > 10000) { + DWC_WARN("%s() HANG! GRSTCTL=%0x\n", __func__, + greset.d32); + break; + } + } + while (greset.b.rxfflsh == 1); + + /* Wait for 3 PHY Clocks*/ + UDELAY(1); +} + +/** + * Do core a soft reset of the core. Be careful with this because it + * resets all the internal state machines of the core. + */ +void dwc_otg_core_reset(dwc_otg_core_if_t *core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + volatile grstctl_t greset = { .d32 = 0}; + int count = 0; + + DWC_DEBUGPL(DBG_CILV, "%s\n", __func__); + /* Wait for AHB master IDLE state. */ + do { + UDELAY(10); + greset.d32 = dwc_read_reg32(&global_regs->grstctl); + if (++count > 100000) { + DWC_WARN("%s() HANG! AHB Idle GRSTCTL=%0x\n", __func__, + greset.d32); + return; + } + } + while (greset.b.ahbidle == 0); + + /* Core Soft Reset */ + count = 0; + greset.b.csftrst = 1; + dwc_write_reg32(&global_regs->grstctl, greset.d32); + do { + greset.d32 = dwc_read_reg32(&global_regs->grstctl); + if (++count > 10000) { + DWC_WARN("%s() HANG! Soft Reset GRSTCTL=%0x\n", __func__, + greset.d32); + break; + } + } + while (greset.b.csftrst == 1); + + /* Wait for 3 PHY Clocks*/ + MDELAY(100); + + DWC_DEBUGPL(DBG_CILV, "GINTSTS=%.8x\n", dwc_read_reg32(&global_regs->gintsts)); + DWC_DEBUGPL(DBG_CILV, "GINTSTS=%.8x\n", dwc_read_reg32(&global_regs->gintsts)); + DWC_DEBUGPL(DBG_CILV, "GINTSTS=%.8x\n", dwc_read_reg32(&global_regs->gintsts)); + +} + + + +/** + * Register HCD callbacks. The callbacks are used to start and stop + * the HCD for interrupt processing. + * + * @param core_if Programming view of DWC_otg controller. + * @param cb the HCD callback structure. + * @param p pointer to be passed to callback function (usb_hcd*). + */ +void dwc_otg_cil_register_hcd_callbacks(dwc_otg_core_if_t *core_if, + dwc_otg_cil_callbacks_t *cb, + void *p) +{ + core_if->hcd_cb = cb; + cb->p = p; +} + +/** + * Register PCD callbacks. The callbacks are used to start and stop + * the PCD for interrupt processing. + * + * @param core_if Programming view of DWC_otg controller. + * @param cb the PCD callback structure. + * @param p pointer to be passed to callback function (pcd*). + */ +void dwc_otg_cil_register_pcd_callbacks(dwc_otg_core_if_t *core_if, + dwc_otg_cil_callbacks_t *cb, + void *p) +{ + core_if->pcd_cb = cb; + cb->p = p; +} + +#ifdef DWC_EN_ISOC + +/** + * This function writes isoc data per 1 (micro)frame into tx fifo + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +void write_isoc_frame_data(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + dwc_otg_dev_in_ep_regs_t *ep_regs; + dtxfsts_data_t txstatus = {.d32 = 0}; + uint32_t len = 0; + uint32_t dwords; + + ep->xfer_len = ep->data_per_frame; + ep->xfer_count = 0; + + ep_regs = core_if->dev_if->in_ep_regs[ep->num]; + + len = ep->xfer_len - ep->xfer_count; + + if (len > ep->maxpacket) { + len = ep->maxpacket; + } + + dwords = (len + 3)/4; + + /* While there is space in the queue and space in the FIFO and + * More data to tranfer, Write packets to the Tx FIFO */ + txstatus.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dtxfsts); + DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n",ep->num,txstatus.d32); + + while (txstatus.b.txfspcavail > dwords && + ep->xfer_count < ep->xfer_len && + ep->xfer_len != 0) { + /* Write the FIFO */ + dwc_otg_ep_write_packet(core_if, ep, 0); + + len = ep->xfer_len - ep->xfer_count; + if (len > ep->maxpacket) { + len = ep->maxpacket; + } + + dwords = (len + 3)/4; + txstatus.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dtxfsts); + DWC_DEBUGPL(DBG_PCDV,"dtxfsts[%d]=0x%08x\n", ep->num, txstatus.d32); + } +} + + +/** + * This function initializes a descriptor chain for Isochronous transfer + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +void dwc_otg_iso_ep_start_frm_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + deptsiz_data_t deptsiz = { .d32 = 0 }; + depctl_data_t depctl = { .d32 = 0 }; + dsts_data_t dsts = { .d32 = 0 }; + volatile uint32_t *addr; + + if(ep->is_in) { + addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; + } else { + addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; + } + + ep->xfer_len = ep->data_per_frame; + ep->xfer_count = 0; + ep->xfer_buff = ep->cur_pkt_addr; + ep->dma_addr = ep->cur_pkt_dma_addr; + + if(ep->is_in) { + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + deptsiz.b.xfersize = ep->xfer_len; + deptsiz.b.pktcnt = + (ep->xfer_len - 1 + ep->maxpacket) / + ep->maxpacket; + deptsiz.b.mc = deptsiz.b.pktcnt; + dwc_write_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz, deptsiz.d32); + + /* Write the DMA register */ + if (core_if->dma_enable) { + dwc_write_reg32 (&(core_if->dev_if->in_ep_regs[ep->num]->diepdma), (uint32_t)ep->dma_addr); + } + } else { + deptsiz.b.pktcnt = + (ep->xfer_len + (ep->maxpacket - 1)) / + ep->maxpacket; + deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket; + + dwc_write_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doeptsiz, deptsiz.d32); + + if (core_if->dma_enable) { + dwc_write_reg32 (&(core_if->dev_if->out_ep_regs[ep->num]->doepdma), + (uint32_t)ep->dma_addr); + } + } + + + /** Enable endpoint, clear nak */ + + depctl.d32 = 0; + if(ep->bInterval == 1) { + dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); + ep->next_frame = dsts.b.soffn + ep->bInterval; + + if(ep->next_frame & 0x1) { + depctl.b.setd1pid = 1; + } else { + depctl.b.setd0pid = 1; + } + } else { + ep->next_frame += ep->bInterval; + + if(ep->next_frame & 0x1) { + depctl.b.setd1pid = 1; + } else { + depctl.b.setd0pid = 1; + } + } + depctl.b.epena = 1; + depctl.b.cnak = 1; + + dwc_modify_reg32(addr, 0, depctl.d32); + depctl.d32 = dwc_read_reg32(addr); + + if(ep->is_in && core_if->dma_enable == 0) { + write_isoc_frame_data(core_if, ep); + } + +} + +#endif //DWC_EN_ISOC diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_cil.h b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_cil.h new file mode 100644 index 0000000000..463214b845 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_cil.h @@ -0,0 +1,1106 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil.h $ + * $Revision: #91 $ + * $Date: 2008/09/19 $ + * $Change: 1099526 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#if !defined(__DWC_CIL_H__) +#define __DWC_CIL_H__ + +#include <linux/workqueue.h> +#include <linux/version.h> +#include <asm/param.h> +//#include <asm/arch/regs-irq.h> + +#include "otg_plat.h" +#include "otg_regs.h" +#ifdef DEBUG +#include "linux/timer.h" +#endif + +/** + * @file + * This file contains the interface to the Core Interface Layer. + */ + + +/** Macros defined for DWC OTG HW Release verison */ +#define OTG_CORE_REV_2_00 0x4F542000 +#define OTG_CORE_REV_2_60a 0x4F54260A +#define OTG_CORE_REV_2_71a 0x4F54271A +#define OTG_CORE_REV_2_72a 0x4F54272A + +/** +*/ +typedef struct iso_pkt_info +{ + uint32_t offset; + uint32_t length; + int32_t status; +} iso_pkt_info_t; +/** + * The <code>dwc_ep</code> structure represents the state of a single + * endpoint when acting in device mode. It contains the data items + * needed for an endpoint to be activated and transfer packets. + */ +typedef struct dwc_ep +{ + /** EP number used for register address lookup */ + uint8_t num; + /** EP direction 0 = OUT */ + unsigned is_in : 1; + /** EP active. */ + unsigned active : 1; + + /** Periodic Tx FIFO # for IN EPs For INTR EP set to 0 to use non-periodic Tx FIFO + If dedicated Tx FIFOs are enabled for all IN Eps - Tx FIFO # FOR IN EPs*/ + unsigned tx_fifo_num : 4; + /** EP type: 0 - Control, 1 - ISOC, 2 - BULK, 3 - INTR */ + unsigned type : 2; +#define DWC_OTG_EP_TYPE_CONTROL 0 +#define DWC_OTG_EP_TYPE_ISOC 1 +#define DWC_OTG_EP_TYPE_BULK 2 +#define DWC_OTG_EP_TYPE_INTR 3 + + /** DATA start PID for INTR and BULK EP */ + unsigned data_pid_start : 1; + /** Frame (even/odd) for ISOC EP */ + unsigned even_odd_frame : 1; + /** Max Packet bytes */ + unsigned maxpacket : 11; + + /** Max Transfer size */ + unsigned maxxfer : 16; + + /** @name Transfer state */ + /** @{ */ + + /** + * Pointer to the beginning of the transfer buffer -- do not modify + * during transfer. + */ + + uint32_t dma_addr; + + uint32_t dma_desc_addr; + dwc_otg_dma_desc_t* desc_addr; + + + uint8_t *start_xfer_buff; + /** pointer to the transfer buffer */ + uint8_t *xfer_buff; + /** Number of bytes to transfer */ + unsigned xfer_len : 19; + /** Number of bytes transferred. */ + unsigned xfer_count : 19; + /** Sent ZLP */ + unsigned sent_zlp : 1; + /** Total len for control transfer */ + unsigned total_len : 19; + + /** stall clear flag */ + unsigned stall_clear_flag : 1; + + /** Allocated DMA Desc count */ + uint32_t desc_cnt; + + uint32_t aligned_dma_addr; + uint32_t aligned_buf_size; + uint8_t *aligned_buf; + + +#ifdef DWC_EN_ISOC + /** + * Variables specific for ISOC EPs + * + */ + /** DMA addresses of ISOC buffers */ + uint32_t dma_addr0; + uint32_t dma_addr1; + + uint32_t iso_dma_desc_addr; + dwc_otg_dma_desc_t* iso_desc_addr; + + /** pointer to the transfer buffers */ + uint8_t *xfer_buff0; + uint8_t *xfer_buff1; + + /** number of ISOC Buffer is processing */ + uint32_t proc_buf_num; + /** Interval of ISOC Buffer processing */ + uint32_t buf_proc_intrvl; + /** Data size for regular frame */ + uint32_t data_per_frame; + + /* todo - pattern data support is to be implemented in the future */ + /** Data size for pattern frame */ + uint32_t data_pattern_frame; + /** Frame number of pattern data */ + uint32_t sync_frame; + + /** bInterval */ + uint32_t bInterval; + /** ISO Packet number per frame */ + uint32_t pkt_per_frm; + /** Next frame num for which will be setup DMA Desc */ + uint32_t next_frame; + /** Number of packets per buffer processing */ + uint32_t pkt_cnt; + /** Info for all isoc packets */ + iso_pkt_info_t *pkt_info; + /** current pkt number */ + uint32_t cur_pkt; + /** current pkt number */ + uint8_t *cur_pkt_addr; + /** current pkt number */ + uint32_t cur_pkt_dma_addr; +#endif //DWC_EN_ISOC +/** @} */ +} dwc_ep_t; + +/* + * Reasons for halting a host channel. + */ +typedef enum dwc_otg_halt_status +{ + DWC_OTG_HC_XFER_NO_HALT_STATUS, + DWC_OTG_HC_XFER_COMPLETE, + DWC_OTG_HC_XFER_URB_COMPLETE, + DWC_OTG_HC_XFER_ACK, + DWC_OTG_HC_XFER_NAK, + DWC_OTG_HC_XFER_NYET, + DWC_OTG_HC_XFER_STALL, + DWC_OTG_HC_XFER_XACT_ERR, + DWC_OTG_HC_XFER_FRAME_OVERRUN, + DWC_OTG_HC_XFER_BABBLE_ERR, + DWC_OTG_HC_XFER_DATA_TOGGLE_ERR, + DWC_OTG_HC_XFER_AHB_ERR, + DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE, + DWC_OTG_HC_XFER_URB_DEQUEUE +} dwc_otg_halt_status_e; + +/** + * Host channel descriptor. This structure represents the state of a single + * host channel when acting in host mode. It contains the data items needed to + * transfer packets to an endpoint via a host channel. + */ +typedef struct dwc_hc +{ + /** Host channel number used for register address lookup */ + uint8_t hc_num; + + /** Device to access */ + unsigned dev_addr : 7; + + /** EP to access */ + unsigned ep_num : 4; + + /** EP direction. 0: OUT, 1: IN */ + unsigned ep_is_in : 1; + + /** + * EP speed. + * One of the following values: + * - DWC_OTG_EP_SPEED_LOW + * - DWC_OTG_EP_SPEED_FULL + * - DWC_OTG_EP_SPEED_HIGH + */ + unsigned speed : 2; +#define DWC_OTG_EP_SPEED_LOW 0 +#define DWC_OTG_EP_SPEED_FULL 1 +#define DWC_OTG_EP_SPEED_HIGH 2 + + /** + * Endpoint type. + * One of the following values: + * - DWC_OTG_EP_TYPE_CONTROL: 0 + * - DWC_OTG_EP_TYPE_ISOC: 1 + * - DWC_OTG_EP_TYPE_BULK: 2 + * - DWC_OTG_EP_TYPE_INTR: 3 + */ + unsigned ep_type : 2; + + /** Max packet size in bytes */ + unsigned max_packet : 11; + + /** + * PID for initial transaction. + * 0: DATA0,<br> + * 1: DATA2,<br> + * 2: DATA1,<br> + * 3: MDATA (non-Control EP), + * SETUP (Control EP) + */ + unsigned data_pid_start : 2; +#define DWC_OTG_HC_PID_DATA0 0 +#define DWC_OTG_HC_PID_DATA2 1 +#define DWC_OTG_HC_PID_DATA1 2 +#define DWC_OTG_HC_PID_MDATA 3 +#define DWC_OTG_HC_PID_SETUP 3 + + /** Number of periodic transactions per (micro)frame */ + unsigned multi_count: 2; + + /** @name Transfer State */ + /** @{ */ + + /** Pointer to the current transfer buffer position. */ + uint8_t *xfer_buff; + /** Total number of bytes to transfer. */ + uint32_t xfer_len; + /** Number of bytes transferred so far. */ + uint32_t xfer_count; + /** Packet count at start of transfer.*/ + uint16_t start_pkt_count; + + /** + * Flag to indicate whether the transfer has been started. Set to 1 if + * it has been started, 0 otherwise. + */ + uint8_t xfer_started; + + /** + * Set to 1 to indicate that a PING request should be issued on this + * channel. If 0, process normally. + */ + uint8_t do_ping; + + /** + * Set to 1 to indicate that the error count for this transaction is + * non-zero. Set to 0 if the error count is 0. + */ + uint8_t error_state; + + /** + * Set to 1 to indicate that this channel should be halted the next + * time a request is queued for the channel. This is necessary in + * slave mode if no request queue space is available when an attempt + * is made to halt the channel. + */ + uint8_t halt_on_queue; + + /** + * Set to 1 if the host channel has been halted, but the core is not + * finished flushing queued requests. Otherwise 0. + */ + uint8_t halt_pending; + + /** + * Reason for halting the host channel. + */ + dwc_otg_halt_status_e halt_status; + + /* + * Split settings for the host channel + */ + uint8_t do_split; /**< Enable split for the channel */ + uint8_t complete_split; /**< Enable complete split */ + uint8_t hub_addr; /**< Address of high speed hub */ + + uint8_t port_addr; /**< Port of the low/full speed device */ + /** Split transaction position + * One of the following values: + * - DWC_HCSPLIT_XACTPOS_MID + * - DWC_HCSPLIT_XACTPOS_BEGIN + * - DWC_HCSPLIT_XACTPOS_END + * - DWC_HCSPLIT_XACTPOS_ALL */ + uint8_t xact_pos; + + /** Set when the host channel does a short read. */ + uint8_t short_read; + + /** + * Number of requests issued for this channel since it was assigned to + * the current transfer (not counting PINGs). + */ + uint8_t requests; + + /** + * Queue Head for the transfer being processed by this channel. + */ + struct dwc_otg_qh *qh; + + /** @} */ + + /** Entry in list of host channels. */ + struct list_head hc_list_entry; +} dwc_hc_t; + +/** + * The following parameters may be specified when starting the module. These + * parameters define how the DWC_otg controller should be configured. + * Parameter values are passed to the CIL initialization function + * dwc_otg_cil_init. + */ +typedef struct dwc_otg_core_params +{ + int32_t opt; +#define dwc_param_opt_default 1 + + /** + * Specifies the OTG capabilities. The driver will automatically + * detect the value for this parameter if none is specified. + * 0 - HNP and SRP capable (default) + * 1 - SRP Only capable + * 2 - No HNP/SRP capable + */ + int32_t otg_cap; +#define DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE 0 +#define DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE 1 +#define DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE 2 +//#define dwc_param_otg_cap_default DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE +#define dwc_param_otg_cap_default DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE + + /** + * Specifies whether to use slave or DMA mode for accessing the data + * FIFOs. The driver will automatically detect the value for this + * parameter if none is specified. + * 0 - Slave + * 1 - DMA (default, if available) + */ + int32_t dma_enable; +#define dwc_param_dma_enable_default 1 + + /** + * When DMA mode is enabled specifies whether to use address DMA or DMA Descritor mode for accessing the data + * FIFOs in device mode. The driver will automatically detect the value for this + * parameter if none is specified. + * 0 - address DMA + * 1 - DMA Descriptor(default, if available) + */ + int32_t dma_desc_enable; +#define dwc_param_dma_desc_enable_default 0 + /** The DMA Burst size (applicable only for External DMA + * Mode). 1, 4, 8 16, 32, 64, 128, 256 (default 32) + */ + int32_t dma_burst_size; /* Translate this to GAHBCFG values */ +//#define dwc_param_dma_burst_size_default 32 +#define dwc_param_dma_burst_size_default 1 + + /** + * Specifies the maximum speed of operation in host and device mode. + * The actual speed depends on the speed of the attached device and + * the value of phy_type. The actual speed depends on the speed of the + * attached device. + * 0 - High Speed (default) + * 1 - Full Speed + */ + int32_t speed; +#define dwc_param_speed_default 0 +#define DWC_SPEED_PARAM_HIGH 0 +#define DWC_SPEED_PARAM_FULL 1 + + /** Specifies whether low power mode is supported when attached + * to a Full Speed or Low Speed device in host mode. + * 0 - Don't support low power mode (default) + * 1 - Support low power mode + */ + int32_t host_support_fs_ls_low_power; +#define dwc_param_host_support_fs_ls_low_power_default 0 + + /** Specifies the PHY clock rate in low power mode when connected to a + * Low Speed device in host mode. This parameter is applicable only if + * HOST_SUPPORT_FS_LS_LOW_POWER is enabled. If PHY_TYPE is set to FS + * then defaults to 6 MHZ otherwise 48 MHZ. + * + * 0 - 48 MHz + * 1 - 6 MHz + */ + int32_t host_ls_low_power_phy_clk; +#define dwc_param_host_ls_low_power_phy_clk_default 0 +#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ 0 +#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ 1 + + /** + * 0 - Use cC FIFO size parameters + * 1 - Allow dynamic FIFO sizing (default) + */ + int32_t enable_dynamic_fifo; +#define dwc_param_enable_dynamic_fifo_default 1 + + /** Total number of 4-byte words in the data FIFO memory. This + * memory includes the Rx FIFO, non-periodic Tx FIFO, and periodic + * Tx FIFOs. + * 32 to 32768 (default 8192) + * Note: The total FIFO memory depth in the FPGA configuration is 8192. + */ + int32_t data_fifo_size; +#define dwc_param_data_fifo_size_default 8192 + + /** Number of 4-byte words in the Rx FIFO in device mode when dynamic + * FIFO sizing is enabled. + * 16 to 32768 (default 1064) + */ + int32_t dev_rx_fifo_size; +//#define dwc_param_dev_rx_fifo_size_default 1064 +#define dwc_param_dev_rx_fifo_size_default 0x100 + + /** + * Specifies whether dedicated transmit FIFOs are + * enabled for non periodic IN endpoints in device mode + * 0 - No + * 1 - Yes + */ + int32_t en_multiple_tx_fifo; +#define dwc_param_en_multiple_tx_fifo_default 1 + + /** Number of 4-byte words in each of the Tx FIFOs in device + * mode when dynamic FIFO sizing is enabled. + * 4 to 768 (default 256) + */ + uint32_t dev_tx_fifo_size[MAX_TX_FIFOS]; +//#define dwc_param_dev_tx_fifo_size_default 256 +#define dwc_param_dev_tx_fifo_size_default 0x80 + + /** Number of 4-byte words in the non-periodic Tx FIFO in device mode + * when dynamic FIFO sizing is enabled. + * 16 to 32768 (default 1024) + */ + int32_t dev_nperio_tx_fifo_size; +//#define dwc_param_dev_nperio_tx_fifo_size_default 1024 +#define dwc_param_dev_nperio_tx_fifo_size_default 0x80 + + /** Number of 4-byte words in each of the periodic Tx FIFOs in device + * mode when dynamic FIFO sizing is enabled. + * 4 to 768 (default 256) + */ + uint32_t dev_perio_tx_fifo_size[MAX_PERIO_FIFOS]; +//#define dwc_param_dev_perio_tx_fifo_size_default 256 +#define dwc_param_dev_perio_tx_fifo_size_default 0x80 + + /** Number of 4-byte words in the Rx FIFO in host mode when dynamic + * FIFO sizing is enabled. + * 16 to 32768 (default 1024) + */ + int32_t host_rx_fifo_size; +//#define dwc_param_host_rx_fifo_size_default 1024 +#define dwc_param_host_rx_fifo_size_default 0x292 + + /** Number of 4-byte words in the non-periodic Tx FIFO in host mode + * when Dynamic FIFO sizing is enabled in the core. + * 16 to 32768 (default 1024) + */ + int32_t host_nperio_tx_fifo_size; +//#define dwc_param_host_nperio_tx_fifo_size_default 1024 +//#define dwc_param_host_nperio_tx_fifo_size_default 0x292 +#define dwc_param_host_nperio_tx_fifo_size_default 0x80 + + /** Number of 4-byte words in the host periodic Tx FIFO when dynamic + * FIFO sizing is enabled. + * 16 to 32768 (default 1024) + */ + int32_t host_perio_tx_fifo_size; +//#define dwc_param_host_perio_tx_fifo_size_default 1024 +#define dwc_param_host_perio_tx_fifo_size_default 0x292 + + /** The maximum transfer size supported in bytes. + * 2047 to 65,535 (default 65,535) + */ + int32_t max_transfer_size; +#define dwc_param_max_transfer_size_default 65535 + + /** The maximum number of packets in a transfer. + * 15 to 511 (default 511) + */ + int32_t max_packet_count; +#define dwc_param_max_packet_count_default 511 + + /** The number of host channel registers to use. + * 1 to 16 (default 12) + * Note: The FPGA configuration supports a maximum of 12 host channels. + */ + int32_t host_channels; +//#define dwc_param_host_channels_default 12 +#define dwc_param_host_channels_default 16 + + /** The number of endpoints in addition to EP0 available for device + * mode operations. + * 1 to 15 (default 6 IN and OUT) + * Note: The FPGA configuration supports a maximum of 6 IN and OUT + * endpoints in addition to EP0. + */ + int32_t dev_endpoints; +//#define dwc_param_dev_endpoints_default 6 +#define dwc_param_dev_endpoints_default 8 + + /** + * Specifies the type of PHY interface to use. By default, the driver + * will automatically detect the phy_type. + * + * 0 - Full Speed PHY + * 1 - UTMI+ (default) + * 2 - ULPI + */ + int32_t phy_type; +#define DWC_PHY_TYPE_PARAM_FS 0 +#define DWC_PHY_TYPE_PARAM_UTMI 1 +#define DWC_PHY_TYPE_PARAM_ULPI 2 +#define dwc_param_phy_type_default DWC_PHY_TYPE_PARAM_UTMI + + /** + * Specifies the UTMI+ Data Width. This parameter is + * applicable for a PHY_TYPE of UTMI+ or ULPI. (For a ULPI + * PHY_TYPE, this parameter indicates the data width between + * the MAC and the ULPI Wrapper.) Also, this parameter is + * applicable only if the OTG_HSPHY_WIDTH cC parameter was set + * to "8 and 16 bits", meaning that the core has been + * configured to work at either data path width. + * + * 8 or 16 bits (default 16) + */ + int32_t phy_utmi_width; +#define dwc_param_phy_utmi_width_default 16 + + /** + * Specifies whether the ULPI operates at double or single + * data rate. This parameter is only applicable if PHY_TYPE is + * ULPI. + * + * 0 - single data rate ULPI interface with 8 bit wide data + * bus (default) + * 1 - double data rate ULPI interface with 4 bit wide data + * bus + */ + int32_t phy_ulpi_ddr; +#define dwc_param_phy_ulpi_ddr_default 0 + + /** + * Specifies whether to use the internal or external supply to + * drive the vbus with a ULPI phy. + */ + int32_t phy_ulpi_ext_vbus; +#define DWC_PHY_ULPI_INTERNAL_VBUS 0 +#define DWC_PHY_ULPI_EXTERNAL_VBUS 1 +#define dwc_param_phy_ulpi_ext_vbus_default DWC_PHY_ULPI_INTERNAL_VBUS + + /** + * Specifies whether to use the I2Cinterface for full speed PHY. This + * parameter is only applicable if PHY_TYPE is FS. + * 0 - No (default) + * 1 - Yes + */ + int32_t i2c_enable; +#define dwc_param_i2c_enable_default 0 + + int32_t ulpi_fs_ls; +#define dwc_param_ulpi_fs_ls_default 0 + + int32_t ts_dline; +#define dwc_param_ts_dline_default 0 + + /** Thresholding enable flag- + * bit 0 - enable non-ISO Tx thresholding + * bit 1 - enable ISO Tx thresholding + * bit 2 - enable Rx thresholding + */ + uint32_t thr_ctl; +#define dwc_param_thr_ctl_default 0 + + /** Thresholding length for Tx + * FIFOs in 32 bit DWORDs + */ + uint32_t tx_thr_length; +#define dwc_param_tx_thr_length_default 64 + + /** Thresholding length for Rx + * FIFOs in 32 bit DWORDs + */ + uint32_t rx_thr_length; +#define dwc_param_rx_thr_length_default 64 + + /** Per Transfer Interrupt + * mode enable flag + * 1 - Enabled + * 0 - Disabled + */ + uint32_t pti_enable; +#define dwc_param_pti_enable_default 0 + + /** Molti Processor Interrupt + * mode enable flag + * 1 - Enabled + * 0 - Disabled + */ + uint32_t mpi_enable; +#define dwc_param_mpi_enable_default 0 + +} dwc_otg_core_params_t; + +#ifdef DEBUG +struct dwc_otg_core_if; +typedef struct hc_xfer_info +{ + struct dwc_otg_core_if *core_if; + dwc_hc_t *hc; +} hc_xfer_info_t; +#endif + +/** + * The <code>dwc_otg_core_if</code> structure contains information needed to manage + * the DWC_otg controller acting in either host or device mode. It + * represents the programming view of the controller as a whole. + */ +typedef struct dwc_otg_core_if +{ + /** Parameters that define how the core should be configured.*/ + dwc_otg_core_params_t *core_params; + + /** Core Global registers starting at offset 000h. */ + dwc_otg_core_global_regs_t *core_global_regs; + + /** Device-specific information */ + dwc_otg_dev_if_t *dev_if; + /** Host-specific information */ + dwc_otg_host_if_t *host_if; + + /** Value from SNPSID register */ + uint32_t snpsid; + + /* + * Set to 1 if the core PHY interface bits in USBCFG have been + * initialized. + */ + uint8_t phy_init_done; + + /* + * SRP Success flag, set by srp success interrupt in FS I2C mode + */ + uint8_t srp_success; + uint8_t srp_timer_started; + + /* Common configuration information */ + /** Power and Clock Gating Control Register */ + volatile uint32_t *pcgcctl; +#define DWC_OTG_PCGCCTL_OFFSET 0xE00 + + /** Push/pop addresses for endpoints or host channels.*/ + uint32_t *data_fifo[MAX_EPS_CHANNELS]; +#define DWC_OTG_DATA_FIFO_OFFSET 0x1000 +#define DWC_OTG_DATA_FIFO_SIZE 0x1000 + + /** Total RAM for FIFOs (Bytes) */ + uint16_t total_fifo_size; + /** Size of Rx FIFO (Bytes) */ + uint16_t rx_fifo_size; + /** Size of Non-periodic Tx FIFO (Bytes) */ + uint16_t nperio_tx_fifo_size; + + + /** 1 if DMA is enabled, 0 otherwise. */ + uint8_t dma_enable; + + /** 1 if Descriptor DMA mode is enabled, 0 otherwise. */ + uint8_t dma_desc_enable; + + /** 1 if PTI Enhancement mode is enabled, 0 otherwise. */ + uint8_t pti_enh_enable; + + /** 1 if MPI Enhancement mode is enabled, 0 otherwise. */ + uint8_t multiproc_int_enable; + + /** 1 if dedicated Tx FIFOs are enabled, 0 otherwise. */ + uint8_t en_multiple_tx_fifo; + + /** Set to 1 if multiple packets of a high-bandwidth transfer is in + * process of being queued */ + uint8_t queuing_high_bandwidth; + + /** Hardware Configuration -- stored here for convenience.*/ + hwcfg1_data_t hwcfg1; + hwcfg2_data_t hwcfg2; + hwcfg3_data_t hwcfg3; + hwcfg4_data_t hwcfg4; + + /** Host and Device Configuration -- stored here for convenience.*/ + hcfg_data_t hcfg; + dcfg_data_t dcfg; + + /** The operational State, during transations + * (a_host>>a_peripherial and b_device=>b_host) this may not + * match the core but allows the software to determine + * transitions. + */ + uint8_t op_state; + + /** + * Set to 1 if the HCD needs to be restarted on a session request + * interrupt. This is required if no connector ID status change has + * occurred since the HCD was last disconnected. + */ + uint8_t restart_hcd_on_session_req; + + /** HCD callbacks */ + /** A-Device is a_host */ +#define A_HOST (1) + /** A-Device is a_suspend */ +#define A_SUSPEND (2) + /** A-Device is a_peripherial */ +#define A_PERIPHERAL (3) + /** B-Device is operating as a Peripheral. */ +#define B_PERIPHERAL (4) + /** B-Device is operating as a Host. */ +#define B_HOST (5) + + /** HCD callbacks */ + struct dwc_otg_cil_callbacks *hcd_cb; + /** PCD callbacks */ + struct dwc_otg_cil_callbacks *pcd_cb; + + /** Device mode Periodic Tx FIFO Mask */ + uint32_t p_tx_msk; + /** Device mode Periodic Tx FIFO Mask */ + uint32_t tx_msk; + + /** Workqueue object used for handling several interrupts */ + struct workqueue_struct *wq_otg; + + /** Work object used for handling "Connector ID Status Change" Interrupt */ + struct work_struct w_conn_id; + + /** Work object used for handling "Wakeup Detected" Interrupt */ + struct delayed_work w_wkp; + +#ifdef DEBUG + uint32_t start_hcchar_val[MAX_EPS_CHANNELS]; + + hc_xfer_info_t hc_xfer_info[MAX_EPS_CHANNELS]; + struct timer_list hc_xfer_timer[MAX_EPS_CHANNELS]; + + uint32_t hfnum_7_samples; + uint64_t hfnum_7_frrem_accum; + uint32_t hfnum_0_samples; + uint64_t hfnum_0_frrem_accum; + uint32_t hfnum_other_samples; + uint64_t hfnum_other_frrem_accum; +#endif + + +} dwc_otg_core_if_t; + +/*We must clear S3C24XX_EINTPEND external interrupt register + * because after clearing in this register trigerred IRQ from + * H/W core in kernel interrupt can be occured again before OTG + * handlers clear all IRQ sources of Core registers because of + * timing latencies and Low Level IRQ Type. + */ + +#ifdef CONFIG_MACH_IPMATE +#define S3C2410X_CLEAR_EINTPEND() \ +do { \ + if (!dwc_otg_read_core_intr(core_if)) { \ + __raw_writel(1UL << 11,S3C24XX_EINTPEND); \ + } \ +} while (0) +#else +#define S3C2410X_CLEAR_EINTPEND() do { } while (0) +#endif + +/* + * The following functions are functions for works + * using during handling some interrupts + */ +extern void w_conn_id_status_change(struct work_struct *p); +extern void w_wakeup_detected(struct work_struct *p); + + +/* + * The following functions support initialization of the CIL driver component + * and the DWC_otg controller. + */ +extern dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t *_reg_base_addr, + dwc_otg_core_params_t *_core_params); +extern void dwc_otg_cil_remove(dwc_otg_core_if_t *_core_if); +extern void dwc_otg_core_init(dwc_otg_core_if_t *_core_if); +extern void dwc_otg_core_host_init(dwc_otg_core_if_t *_core_if); +extern void dwc_otg_core_dev_init(dwc_otg_core_if_t *_core_if); +extern void dwc_otg_enable_global_interrupts( dwc_otg_core_if_t *_core_if ); +extern void dwc_otg_disable_global_interrupts( dwc_otg_core_if_t *_core_if ); + +/** @name Device CIL Functions + * The following functions support managing the DWC_otg controller in device + * mode. + */ +/**@{*/ +extern void dwc_otg_wakeup(dwc_otg_core_if_t *_core_if); +extern void dwc_otg_read_setup_packet (dwc_otg_core_if_t *_core_if, uint32_t *_dest); +extern uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t *_core_if); +extern void dwc_otg_ep0_activate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); +extern void dwc_otg_ep_activate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); +extern void dwc_otg_ep_deactivate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); +extern void dwc_otg_ep_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); +extern void dwc_otg_ep_start_zl_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); +extern void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); +extern void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); +extern void dwc_otg_ep_write_packet(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep, int _dma); +extern void dwc_otg_ep_set_stall(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); +extern void dwc_otg_ep_clear_stall(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); +extern void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t *_core_if); +extern void dwc_otg_dump_dev_registers(dwc_otg_core_if_t *_core_if); +extern void dwc_otg_dump_spram(dwc_otg_core_if_t *_core_if); +#ifdef DWC_EN_ISOC +extern void dwc_otg_iso_ep_start_frm_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep); +extern void dwc_otg_iso_ep_start_buf_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep); +#endif //DWC_EN_ISOC +/**@}*/ + +/** @name Host CIL Functions + * The following functions support managing the DWC_otg controller in host + * mode. + */ +/**@{*/ +extern void dwc_otg_hc_init(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); +extern void dwc_otg_hc_halt(dwc_otg_core_if_t *_core_if, + dwc_hc_t *_hc, + dwc_otg_halt_status_e _halt_status); +extern void dwc_otg_hc_cleanup(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); +extern void dwc_otg_hc_start_transfer(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); +extern int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); +extern void dwc_otg_hc_do_ping(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); +extern void dwc_otg_hc_write_packet(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); +extern void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t *_core_if); +extern void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t *_core_if); + +/** + * This function Reads HPRT0 in preparation to modify. It keeps the + * WC bits 0 so that if they are read as 1, they won't clear when you + * write it back + */ +static inline uint32_t dwc_otg_read_hprt0(dwc_otg_core_if_t *_core_if) +{ + hprt0_data_t hprt0; + hprt0.d32 = dwc_read_reg32(_core_if->host_if->hprt0); + hprt0.b.prtena = 0; + hprt0.b.prtconndet = 0; + hprt0.b.prtenchng = 0; + hprt0.b.prtovrcurrchng = 0; + return hprt0.d32; +} + +extern void dwc_otg_dump_host_registers(dwc_otg_core_if_t *_core_if); +/**@}*/ + +/** @name Common CIL Functions + * The following functions support managing the DWC_otg controller in either + * device or host mode. + */ +/**@{*/ + +extern void dwc_otg_read_packet(dwc_otg_core_if_t *core_if, + uint8_t *dest, + uint16_t bytes); + +extern void dwc_otg_dump_global_registers(dwc_otg_core_if_t *_core_if); + +extern void dwc_otg_flush_tx_fifo( dwc_otg_core_if_t *_core_if, + const int _num ); +extern void dwc_otg_flush_rx_fifo( dwc_otg_core_if_t *_core_if ); +extern void dwc_otg_core_reset( dwc_otg_core_if_t *_core_if ); + +extern dwc_otg_dma_desc_t* dwc_otg_ep_alloc_desc_chain(uint32_t * dma_desc_addr, uint32_t count); +extern void dwc_otg_ep_free_desc_chain(dwc_otg_dma_desc_t* desc_addr, uint32_t dma_desc_addr, uint32_t count); + +/** + * This function returns the Core Interrupt register. + */ +static inline uint32_t dwc_otg_read_core_intr(dwc_otg_core_if_t *_core_if) +{ + return (dwc_read_reg32(&_core_if->core_global_regs->gintsts) & + dwc_read_reg32(&_core_if->core_global_regs->gintmsk)); +} + +/** + * This function returns the OTG Interrupt register. + */ +static inline uint32_t dwc_otg_read_otg_intr (dwc_otg_core_if_t *_core_if) +{ + return (dwc_read_reg32 (&_core_if->core_global_regs->gotgint)); +} + +/** + * This function reads the Device All Endpoints Interrupt register and + * returns the IN endpoint interrupt bits. + */ +static inline uint32_t dwc_otg_read_dev_all_in_ep_intr(dwc_otg_core_if_t *core_if) +{ + uint32_t v; + + if(core_if->multiproc_int_enable) { + v = dwc_read_reg32(&core_if->dev_if->dev_global_regs->deachint) & + dwc_read_reg32(&core_if->dev_if->dev_global_regs->deachintmsk); + } else { + v = dwc_read_reg32(&core_if->dev_if->dev_global_regs->daint) & + dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk); + } + return (v & 0xffff); + +} + +/** + * This function reads the Device All Endpoints Interrupt register and + * returns the OUT endpoint interrupt bits. + */ +static inline uint32_t dwc_otg_read_dev_all_out_ep_intr(dwc_otg_core_if_t *core_if) +{ + uint32_t v; + + if(core_if->multiproc_int_enable) { + v = dwc_read_reg32(&core_if->dev_if->dev_global_regs->deachint) & + dwc_read_reg32(&core_if->dev_if->dev_global_regs->deachintmsk); + } else { + v = dwc_read_reg32(&core_if->dev_if->dev_global_regs->daint) & + dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk); + } + + return ((v & 0xffff0000) >> 16); +} + +/** + * This function returns the Device IN EP Interrupt register + */ +static inline uint32_t dwc_otg_read_dev_in_ep_intr(dwc_otg_core_if_t *core_if, + dwc_ep_t *ep) +{ + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + uint32_t v, msk, emp; + + if(core_if->multiproc_int_enable) { + msk = dwc_read_reg32(&dev_if->dev_global_regs->diepeachintmsk[ep->num]); + emp = dwc_read_reg32(&dev_if->dev_global_regs->dtknqr4_fifoemptymsk); + msk |= ((emp >> ep->num) & 0x1) << 7; + v = dwc_read_reg32(&dev_if->in_ep_regs[ep->num]->diepint) & msk; + } else { + msk = dwc_read_reg32(&dev_if->dev_global_regs->diepmsk); + emp = dwc_read_reg32(&dev_if->dev_global_regs->dtknqr4_fifoemptymsk); + msk |= ((emp >> ep->num) & 0x1) << 7; + v = dwc_read_reg32(&dev_if->in_ep_regs[ep->num]->diepint) & msk; + } + + + return v; +} +/** + * This function returns the Device OUT EP Interrupt register + */ +static inline uint32_t dwc_otg_read_dev_out_ep_intr(dwc_otg_core_if_t *_core_if, + dwc_ep_t *_ep) +{ + dwc_otg_dev_if_t *dev_if = _core_if->dev_if; + uint32_t v; + doepmsk_data_t msk = { .d32 = 0 }; + + if(_core_if->multiproc_int_enable) { + msk.d32 = dwc_read_reg32(&dev_if->dev_global_regs->doepeachintmsk[_ep->num]); + if(_core_if->pti_enh_enable) { + msk.b.pktdrpsts = 1; + } + v = dwc_read_reg32( &dev_if->out_ep_regs[_ep->num]->doepint) & msk.d32; + } else { + msk.d32 = dwc_read_reg32(&dev_if->dev_global_regs->doepmsk); + if(_core_if->pti_enh_enable) { + msk.b.pktdrpsts = 1; + } + v = dwc_read_reg32( &dev_if->out_ep_regs[_ep->num]->doepint) & msk.d32; + } + return v; +} + +/** + * This function returns the Host All Channel Interrupt register + */ +static inline uint32_t dwc_otg_read_host_all_channels_intr (dwc_otg_core_if_t *_core_if) +{ + return (dwc_read_reg32 (&_core_if->host_if->host_global_regs->haint)); +} + +static inline uint32_t dwc_otg_read_host_channel_intr (dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc) +{ + return (dwc_read_reg32 (&_core_if->host_if->hc_regs[_hc->hc_num]->hcint)); +} + + +/** + * This function returns the mode of the operation, host or device. + * + * @return 0 - Device Mode, 1 - Host Mode + */ +static inline uint32_t dwc_otg_mode(dwc_otg_core_if_t *_core_if) +{ + return (dwc_read_reg32( &_core_if->core_global_regs->gintsts ) & 0x1); +} + +static inline uint8_t dwc_otg_is_device_mode(dwc_otg_core_if_t *_core_if) +{ + return (dwc_otg_mode(_core_if) != DWC_HOST_MODE); +} +static inline uint8_t dwc_otg_is_host_mode(dwc_otg_core_if_t *_core_if) +{ + return (dwc_otg_mode(_core_if) == DWC_HOST_MODE); +} + +extern int32_t dwc_otg_handle_common_intr( dwc_otg_core_if_t *_core_if ); + + +/**@}*/ + +/** + * DWC_otg CIL callback structure. This structure allows the HCD and + * PCD to register functions used for starting and stopping the PCD + * and HCD for role change on for a DRD. + */ +typedef struct dwc_otg_cil_callbacks +{ + /** Start function for role change */ + int (*start) (void *_p); + /** Stop Function for role change */ + int (*stop) (void *_p); + /** Disconnect Function for role change */ + int (*disconnect) (void *_p); + /** Resume/Remote wakeup Function */ + int (*resume_wakeup) (void *_p); + /** Suspend function */ + int (*suspend) (void *_p); + /** Session Start (SRP) */ + int (*session_start) (void *_p); + /** Pointer passed to start() and stop() */ + void *p; +} dwc_otg_cil_callbacks_t; + +extern void dwc_otg_cil_register_pcd_callbacks( dwc_otg_core_if_t *_core_if, + dwc_otg_cil_callbacks_t *_cb, + void *_p); +extern void dwc_otg_cil_register_hcd_callbacks( dwc_otg_core_if_t *_core_if, + dwc_otg_cil_callbacks_t *_cb, + void *_p); +#ifndef warn +#define warn printk +#endif + +#endif + diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_cil_intr.c b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_cil_intr.c new file mode 100644 index 0000000000..a40489380e --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_cil_intr.c @@ -0,0 +1,852 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil_intr.c $ + * $Revision: #10 $ + * $Date: 2008/07/16 $ + * $Change: 1065567 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +/** @file + * + * The Core Interface Layer provides basic services for accessing and + * managing the DWC_otg hardware. These services are used by both the + * Host Controller Driver and the Peripheral Controller Driver. + * + * This file contains the Common Interrupt handlers. + */ +#include "otg_plat.h" +#include "otg_regs.h" +#include "otg_cil.h" +#include "otg_pcd.h" + +#ifdef DEBUG +inline const char *op_state_str(dwc_otg_core_if_t *core_if) +{ + return (core_if->op_state==A_HOST?"a_host": + (core_if->op_state==A_SUSPEND?"a_suspend": + (core_if->op_state==A_PERIPHERAL?"a_peripheral": + (core_if->op_state==B_PERIPHERAL?"b_peripheral": + (core_if->op_state==B_HOST?"b_host": + "unknown"))))); +} +#endif + +/** This function will log a debug message + * + * @param core_if Programming view of DWC_otg controller. + */ +int32_t dwc_otg_handle_mode_mismatch_intr (dwc_otg_core_if_t *core_if) +{ + gintsts_data_t gintsts; + DWC_WARN("Mode Mismatch Interrupt: currently in %s mode\n", + dwc_otg_mode(core_if) ? "Host" : "Device"); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.modemismatch = 1; + dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); + return 1; +} + +/** Start the HCD. Helper function for using the HCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void hcd_start(dwc_otg_core_if_t *core_if) +{ + if (core_if->hcd_cb && core_if->hcd_cb->start) { + core_if->hcd_cb->start(core_if->hcd_cb->p); + } +} +/** Stop the HCD. Helper function for using the HCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void hcd_stop(dwc_otg_core_if_t *core_if) +{ + if (core_if->hcd_cb && core_if->hcd_cb->stop) { + core_if->hcd_cb->stop(core_if->hcd_cb->p); + } +} +/** Disconnect the HCD. Helper function for using the HCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void hcd_disconnect(dwc_otg_core_if_t *core_if) +{ + if (core_if->hcd_cb && core_if->hcd_cb->disconnect) { + core_if->hcd_cb->disconnect(core_if->hcd_cb->p); + } +} +/** Inform the HCD the a New Session has begun. Helper function for + * using the HCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void hcd_session_start(dwc_otg_core_if_t *core_if) +{ + if (core_if->hcd_cb && core_if->hcd_cb->session_start) { + core_if->hcd_cb->session_start(core_if->hcd_cb->p); + } +} + +/** Start the PCD. Helper function for using the PCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void pcd_start(dwc_otg_core_if_t *core_if) +{ + if (core_if->pcd_cb && core_if->pcd_cb->start) { + core_if->pcd_cb->start(core_if->pcd_cb->p); + } +} +/** Stop the PCD. Helper function for using the PCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void pcd_stop(dwc_otg_core_if_t *core_if) +{ + if (core_if->pcd_cb && core_if->pcd_cb->stop) { + core_if->pcd_cb->stop(core_if->pcd_cb->p); + } +} +/** Suspend the PCD. Helper function for using the PCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void pcd_suspend(dwc_otg_core_if_t *core_if) +{ + if (core_if->pcd_cb && core_if->pcd_cb->suspend) { + core_if->pcd_cb->suspend(core_if->pcd_cb->p); + } +} +/** Resume the PCD. Helper function for using the PCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void pcd_resume(dwc_otg_core_if_t *core_if) +{ + if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) { + core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p); + } +} + +/** + * This function handles the OTG Interrupts. It reads the OTG + * Interrupt Register (GOTGINT) to determine what interrupt has + * occurred. + * + * @param core_if Programming view of DWC_otg controller. + */ +int32_t dwc_otg_handle_otg_intr(dwc_otg_core_if_t *core_if) +{ + dwc_otg_core_global_regs_t *global_regs = + core_if->core_global_regs; + gotgint_data_t gotgint; + gotgctl_data_t gotgctl; + gintmsk_data_t gintmsk; + gotgint.d32 = dwc_read_reg32(&global_regs->gotgint); + gotgctl.d32 = dwc_read_reg32(&global_regs->gotgctl); + DWC_DEBUGPL(DBG_CIL, "++OTG Interrupt gotgint=%0x [%s]\n", gotgint.d32, + op_state_str(core_if)); + //DWC_DEBUGPL(DBG_CIL, "gotgctl=%08x\n", gotgctl.d32); + + if (gotgint.b.sesenddet) { + DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " + "Session End Detected++ (%s)\n", + op_state_str(core_if)); + gotgctl.d32 = dwc_read_reg32(&global_regs->gotgctl); + + if (core_if->op_state == B_HOST) { + + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_start(core_if); + + SPIN_UNLOCK(&pcd->lock); + core_if->op_state = B_PERIPHERAL; + } else { + dwc_otg_pcd_t *pcd; + + /* If not B_HOST and Device HNP still set. HNP + * Did not succeed!*/ + if (gotgctl.b.devhnpen) { + DWC_DEBUGPL(DBG_ANY, "Session End Detected\n"); + DWC_ERROR("Device Not Connected/Responding!\n"); + } + + /* If Session End Detected the B-Cable has + * been disconnected. */ + /* Reset PCD and Gadget driver to a + * clean state. */ + + pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_stop(core_if); + + SPIN_UNLOCK(&pcd->lock); + } + gotgctl.d32 = 0; + gotgctl.b.devhnpen = 1; + dwc_modify_reg32(&global_regs->gotgctl, + gotgctl.d32, 0); + } + if (gotgint.b.sesreqsucstschng) { + DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " + "Session Reqeust Success Status Change++\n"); + gotgctl.d32 = dwc_read_reg32(&global_regs->gotgctl); + if (gotgctl.b.sesreqscs) { + if ((core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS) && + (core_if->core_params->i2c_enable)) { + core_if->srp_success = 1; + } + else { + dwc_otg_pcd_t *pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_resume(core_if); + + SPIN_UNLOCK(&pcd->lock); + /* Clear Session Request */ + gotgctl.d32 = 0; + gotgctl.b.sesreq = 1; + dwc_modify_reg32(&global_regs->gotgctl, + gotgctl.d32, 0); + } + } + } + if (gotgint.b.hstnegsucstschng) { + /* Print statements during the HNP interrupt handling + * can cause it to fail.*/ + gotgctl.d32 = dwc_read_reg32(&global_regs->gotgctl); + if (gotgctl.b.hstnegscs) { + if (dwc_otg_is_host_mode(core_if)) { + dwc_otg_pcd_t *pcd; + + core_if->op_state = B_HOST; + /* + * Need to disable SOF interrupt immediately. + * When switching from device to host, the PCD + * interrupt handler won't handle the + * interrupt if host mode is already set. The + * HCD interrupt handler won't get called if + * the HCD state is HALT. This means that the + * interrupt does not get handled and Linux + * complains loudly. + */ + gintmsk.d32 = 0; + gintmsk.b.sofintr = 1; + dwc_modify_reg32(&global_regs->gintmsk, + gintmsk.d32, 0); + + pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_stop(core_if); + + SPIN_UNLOCK(&pcd->lock); + /* + * Initialize the Core for Host mode. + */ + hcd_start(core_if); + core_if->op_state = B_HOST; + } + } else { + gotgctl.d32 = 0; + gotgctl.b.hnpreq = 1; + gotgctl.b.devhnpen = 1; + dwc_modify_reg32(&global_regs->gotgctl, + gotgctl.d32, 0); + DWC_DEBUGPL(DBG_ANY, "HNP Failed\n"); + DWC_ERROR("Device Not Connected/Responding\n"); + } + } + if (gotgint.b.hstnegdet) { + /* The disconnect interrupt is set at the same time as + * Host Negotiation Detected. During the mode + * switch all interrupts are cleared so the disconnect + * interrupt handler will not get executed. + */ + DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " + "Host Negotiation Detected++ (%s)\n", + (dwc_otg_is_host_mode(core_if)?"Host":"Device")); + if (dwc_otg_is_device_mode(core_if)){ + dwc_otg_pcd_t *pcd; + + DWC_DEBUGPL(DBG_ANY, "a_suspend->a_peripheral (%d)\n", core_if->op_state); + hcd_disconnect(core_if); + + pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_start(core_if); + + SPIN_UNLOCK(&pcd->lock); + core_if->op_state = A_PERIPHERAL; + } else { + dwc_otg_pcd_t *pcd; + + /* + * Need to disable SOF interrupt immediately. When + * switching from device to host, the PCD interrupt + * handler won't handle the interrupt if host mode is + * already set. The HCD interrupt handler won't get + * called if the HCD state is HALT. This means that + * the interrupt does not get handled and Linux + * complains loudly. + */ + gintmsk.d32 = 0; + gintmsk.b.sofintr = 1; + dwc_modify_reg32(&global_regs->gintmsk, + gintmsk.d32, 0); + + pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_stop(core_if); + + SPIN_UNLOCK(&pcd->lock); + hcd_start(core_if); + core_if->op_state = A_HOST; + } + } + if (gotgint.b.adevtoutchng) { + DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " + "A-Device Timeout Change++\n"); + } + if (gotgint.b.debdone) { + DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " + "Debounce Done++\n"); + } + + /* Clear GOTGINT */ + dwc_write_reg32 (&core_if->core_global_regs->gotgint, gotgint.d32); + + return 1; +} + + +void w_conn_id_status_change(struct work_struct *p) +{ + dwc_otg_core_if_t *core_if = container_of(p, dwc_otg_core_if_t, w_conn_id); + + uint32_t count = 0; + gotgctl_data_t gotgctl = { .d32 = 0 }; + + gotgctl.d32 = dwc_read_reg32(&core_if->core_global_regs->gotgctl); + DWC_DEBUGPL(DBG_CIL, "gotgctl=%0x\n", gotgctl.d32); + DWC_DEBUGPL(DBG_CIL, "gotgctl.b.conidsts=%d\n", gotgctl.b.conidsts); + + /* B-Device connector (Device Mode) */ + if (gotgctl.b.conidsts) { + dwc_otg_pcd_t *pcd; + + /* Wait for switch to device mode. */ + while (!dwc_otg_is_device_mode(core_if)){ + DWC_PRINT("Waiting for Peripheral Mode, Mode=%s\n", + (dwc_otg_is_host_mode(core_if)?"Host":"Peripheral")); + MDELAY(100); + if (++count > 10000) *(uint32_t*)NULL=0; + } + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + + pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_start(core_if); + + SPIN_UNLOCK(&pcd->lock); + } else { + /* A-Device connector (Host Mode) */ + while (!dwc_otg_is_host_mode(core_if)) { + DWC_PRINT("Waiting for Host Mode, Mode=%s\n", + (dwc_otg_is_host_mode(core_if)?"Host":"Peripheral")); + MDELAY(100); + if (++count > 10000) *(uint32_t*)NULL=0; + } + core_if->op_state = A_HOST; + /* + * Initialize the Core for Host mode. + */ + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + hcd_start(core_if); + } +} + + +/** + * This function handles the Connector ID Status Change Interrupt. It + * reads the OTG Interrupt Register (GOTCTL) to determine whether this + * is a Device to Host Mode transition or a Host Mode to Device + * Transition. + * + * This only occurs when the cable is connected/removed from the PHY + * connector. + * + * @param core_if Programming view of DWC_otg controller. + */ +int32_t dwc_otg_handle_conn_id_status_change_intr(dwc_otg_core_if_t *core_if) +{ + + /* + * Need to disable SOF interrupt immediately. If switching from device + * to host, the PCD interrupt handler won't handle the interrupt if + * host mode is already set. The HCD interrupt handler won't get + * called if the HCD state is HALT. This means that the interrupt does + * not get handled and Linux complains loudly. + */ + gintmsk_data_t gintmsk = { .d32 = 0 }; + gintsts_data_t gintsts = { .d32 = 0 }; + + gintmsk.b.sofintr = 1; + dwc_modify_reg32(&core_if->core_global_regs->gintmsk, gintmsk.d32, 0); + + DWC_DEBUGPL(DBG_CIL, " ++Connector ID Status Change Interrupt++ (%s)\n", + (dwc_otg_is_host_mode(core_if)?"Host":"Device")); + + /* + * Need to schedule a work, as there are possible DELAY function calls + */ + queue_work(core_if->wq_otg, &core_if->w_conn_id); + + /* Set flag and clear interrupt */ + gintsts.b.conidstschng = 1; + dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * This interrupt indicates that a device is initiating the Session + * Request Protocol to request the host to turn on bus power so a new + * session can begin. The handler responds by turning on bus power. If + * the DWC_otg controller is in low power mode, the handler brings the + * controller out of low power mode before turning on bus power. + * + * @param core_if Programming view of DWC_otg controller. + */ +int32_t dwc_otg_handle_session_req_intr(dwc_otg_core_if_t *core_if) +{ + hprt0_data_t hprt0; + gintsts_data_t gintsts; + +#ifndef DWC_HOST_ONLY + DWC_DEBUGPL(DBG_ANY, "++Session Request Interrupt++\n"); + + if (dwc_otg_is_device_mode(core_if)) { + DWC_PRINT("SRP: Device mode\n"); + } else { + DWC_PRINT("SRP: Host mode\n"); + + /* Turn on the port power bit. */ + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtpwr = 1; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + + /* Start the Connection timer. So a message can be displayed + * if connect does not occur within 10 seconds. */ + hcd_session_start(core_if); + } +#endif + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.sessreqintr = 1; + dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + + +void w_wakeup_detected(struct work_struct *p) +{ + struct delayed_work *dw = container_of(p, struct delayed_work, work); + dwc_otg_core_if_t *core_if = container_of(dw, dwc_otg_core_if_t, w_wkp); + + /* + * Clear the Resume after 70ms. (Need 20 ms minimum. Use 70 ms + * so that OPT tests pass with all PHYs). + */ + hprt0_data_t hprt0 = {.d32=0}; + hprt0.d32 = dwc_otg_read_hprt0(core_if); + DWC_DEBUGPL(DBG_ANY,"Resume: HPRT0=%0x\n", hprt0.d32); +// MDELAY(70); + hprt0.b.prtres = 0; /* Resume */ + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + DWC_DEBUGPL(DBG_ANY,"Clear Resume: HPRT0=%0x\n", dwc_read_reg32(core_if->host_if->hprt0)); +} +/** + * This interrupt indicates that the DWC_otg controller has detected a + * resume or remote wakeup sequence. If the DWC_otg controller is in + * low power mode, the handler must brings the controller out of low + * power mode. The controller automatically begins resume + * signaling. The handler schedules a time to stop resume signaling. + */ +int32_t dwc_otg_handle_wakeup_detected_intr(dwc_otg_core_if_t *core_if) +{ + gintsts_data_t gintsts; + + DWC_DEBUGPL(DBG_ANY, "++Resume and Remote Wakeup Detected Interrupt++\n"); + + if (dwc_otg_is_device_mode(core_if)) { + dctl_data_t dctl = {.d32=0}; + DWC_DEBUGPL(DBG_PCD, "DSTS=0x%0x\n", + dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts)); +#ifdef PARTIAL_POWER_DOWN + if (core_if->hwcfg4.b.power_optimiz) { + pcgcctl_data_t power = {.d32=0}; + + power.d32 = dwc_read_reg32(core_if->pcgcctl); + DWC_DEBUGPL(DBG_CIL, "PCGCCTL=%0x\n", power.d32); + + power.b.stoppclk = 0; + dwc_write_reg32(core_if->pcgcctl, power.d32); + + power.b.pwrclmp = 0; + dwc_write_reg32(core_if->pcgcctl, power.d32); + + power.b.rstpdwnmodule = 0; + dwc_write_reg32(core_if->pcgcctl, power.d32); + } +#endif + /* Clear the Remote Wakeup Signalling */ + dctl.b.rmtwkupsig = 1; + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dctl, + dctl.d32, 0); + + if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) { + core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p); + } + + } else { + pcgcctl_data_t pcgcctl = {.d32=0}; + + /* Restart the Phy Clock */ + pcgcctl.b.stoppclk = 1; + dwc_modify_reg32(core_if->pcgcctl, pcgcctl.d32, 0); + + queue_delayed_work(core_if->wq_otg, &core_if->w_wkp, ((70 * HZ / 1000) + 1)); + } + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.wkupintr = 1; + dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * This interrupt indicates that a device has been disconnected from + * the root port. + */ +int32_t dwc_otg_handle_disconnect_intr(dwc_otg_core_if_t *core_if) +{ + gintsts_data_t gintsts; + + DWC_DEBUGPL(DBG_ANY, "++Disconnect Detected Interrupt++ (%s) %s\n", + (dwc_otg_is_host_mode(core_if)?"Host":"Device"), + op_state_str(core_if)); + +/** @todo Consolidate this if statement. */ +#ifndef DWC_HOST_ONLY + if (core_if->op_state == B_HOST) { + dwc_otg_pcd_t *pcd; + + /* If in device mode Disconnect and stop the HCD, then + * start the PCD. */ + hcd_disconnect(core_if); + + pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_start(core_if); + + SPIN_UNLOCK(&pcd->lock); + core_if->op_state = B_PERIPHERAL; + } else if (dwc_otg_is_device_mode(core_if)) { + gotgctl_data_t gotgctl = { .d32 = 0 }; + gotgctl.d32 = dwc_read_reg32(&core_if->core_global_regs->gotgctl); + if (gotgctl.b.hstsethnpen==1) { + /* Do nothing, if HNP in process the OTG + * interrupt "Host Negotiation Detected" + * interrupt will do the mode switch. + */ + } else if (gotgctl.b.devhnpen == 0) { + dwc_otg_pcd_t *pcd; + + /* If in device mode Disconnect and stop the HCD, then + * start the PCD. */ + hcd_disconnect(core_if); + + pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_start(core_if); + + SPIN_UNLOCK(&pcd->lock); + + core_if->op_state = B_PERIPHERAL; + } else { + DWC_DEBUGPL(DBG_ANY,"!a_peripheral && !devhnpen\n"); + } + } else { + if (core_if->op_state == A_HOST) { + /* A-Cable still connected but device disconnected. */ + hcd_disconnect(core_if); + } + } +#endif + + gintsts.d32 = 0; + gintsts.b.disconnect = 1; + dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); + return 1; +} +/** + * This interrupt indicates that SUSPEND state has been detected on + * the USB. + * + * For HNP the USB Suspend interrupt signals the change from + * "a_peripheral" to "a_host". + * + * When power management is enabled the core will be put in low power + * mode. + */ +int32_t dwc_otg_handle_usb_suspend_intr(dwc_otg_core_if_t *core_if) +{ + dsts_data_t dsts; + gintsts_data_t gintsts; + + DWC_DEBUGPL(DBG_ANY,"USB SUSPEND\n"); + + if (dwc_otg_is_device_mode(core_if)) { + dwc_otg_pcd_t *pcd; + + /* Check the Device status register to determine if the Suspend + * state is active. */ + dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); + DWC_DEBUGPL(DBG_PCD, "DSTS=0x%0x\n", dsts.d32); + DWC_DEBUGPL(DBG_PCD, "DSTS.Suspend Status=%d " + "HWCFG4.power Optimize=%d\n", + dsts.b.suspsts, core_if->hwcfg4.b.power_optimiz); + + +#ifdef PARTIAL_POWER_DOWN +/** @todo Add a module parameter for power management. */ + if (dsts.b.suspsts && core_if->hwcfg4.b.power_optimiz) { + pcgcctl_data_t power = {.d32=0}; + DWC_DEBUGPL(DBG_CIL, "suspend\n"); + + power.b.pwrclmp = 1; + dwc_write_reg32(core_if->pcgcctl, power.d32); + + power.b.rstpdwnmodule = 1; + dwc_modify_reg32(core_if->pcgcctl, 0, power.d32); + + power.b.stoppclk = 1; + dwc_modify_reg32(core_if->pcgcctl, 0, power.d32); + } else { + DWC_DEBUGPL(DBG_ANY,"disconnect?\n"); + } +#endif + /* PCD callback for suspend. */ + pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_suspend(core_if); + + SPIN_UNLOCK(&pcd->lock); + } else { + if (core_if->op_state == A_PERIPHERAL) { + dwc_otg_pcd_t *pcd; + + DWC_DEBUGPL(DBG_ANY,"a_peripheral->a_host\n"); + /* Clear the a_peripheral flag, back to a_host. */ + + pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; + if(unlikely(!pcd)) { + DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); + BUG(); + } + SPIN_LOCK(&pcd->lock); + + pcd_stop(core_if); + + SPIN_UNLOCK(&pcd->lock); + + hcd_start(core_if); + core_if->op_state = A_HOST; + } + } + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.usbsuspend = 1; + dwc_write_reg32(&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + + +/** + * This function returns the Core Interrupt register. + */ +static inline uint32_t dwc_otg_read_common_intr(dwc_otg_core_if_t *core_if) +{ + gintsts_data_t gintsts; + gintmsk_data_t gintmsk; + gintmsk_data_t gintmsk_common = {.d32=0}; + gintmsk_common.b.wkupintr = 1; + gintmsk_common.b.sessreqintr = 1; + gintmsk_common.b.conidstschng = 1; + gintmsk_common.b.otgintr = 1; + gintmsk_common.b.modemismatch = 1; + gintmsk_common.b.disconnect = 1; + gintmsk_common.b.usbsuspend = 1; + /** @todo: The port interrupt occurs while in device + * mode. Added code to CIL to clear the interrupt for now! + */ + gintmsk_common.b.portintr = 1; + + gintsts.d32 = dwc_read_reg32(&core_if->core_global_regs->gintsts); + gintmsk.d32 = dwc_read_reg32(&core_if->core_global_regs->gintmsk); +#ifdef DEBUG + /* if any common interrupts set */ + if (gintsts.d32 & gintmsk_common.d32) { + DWC_DEBUGPL(DBG_ANY, "gintsts=%08x gintmsk=%08x\n", + gintsts.d32, gintmsk.d32); + } +#endif + + return ((gintsts.d32 & gintmsk.d32) & gintmsk_common.d32); + +} + +/** + * Common interrupt handler. + * + * The common interrupts are those that occur in both Host and Device mode. + * This handler handles the following interrupts: + * - Mode Mismatch Interrupt + * - Disconnect Interrupt + * - OTG Interrupt + * - Connector ID Status Change Interrupt + * - Session Request Interrupt. + * - Resume / Remote Wakeup Detected Interrupt. + * + */ +int32_t dwc_otg_handle_common_intr(dwc_otg_core_if_t *core_if) +{ + int retval = 0; + gintsts_data_t gintsts; + + gintsts.d32 = dwc_otg_read_common_intr(core_if); + + if (gintsts.b.modemismatch) { + retval |= dwc_otg_handle_mode_mismatch_intr(core_if); + } + if (gintsts.b.otgintr) { + retval |= dwc_otg_handle_otg_intr(core_if); + } + if (gintsts.b.conidstschng) { + retval |= dwc_otg_handle_conn_id_status_change_intr(core_if); + } + if (gintsts.b.disconnect) { + retval |= dwc_otg_handle_disconnect_intr(core_if); + } + if (gintsts.b.sessreqintr) { + retval |= dwc_otg_handle_session_req_intr(core_if); + } + if (gintsts.b.wkupintr) { + retval |= dwc_otg_handle_wakeup_detected_intr(core_if); + } + if (gintsts.b.usbsuspend) { + retval |= dwc_otg_handle_usb_suspend_intr(core_if); + } + if (gintsts.b.portintr && dwc_otg_is_device_mode(core_if)) { + /* The port interrupt occurs while in device mode with HPRT0 + * Port Enable/Disable. + */ + gintsts.d32 = 0; + gintsts.b.portintr = 1; + dwc_write_reg32(&core_if->core_global_regs->gintsts, + gintsts.d32); + retval |= 1; + + } + + S3C2410X_CLEAR_EINTPEND(); + + return retval; +} diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_driver.c b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_driver.c new file mode 100644 index 0000000000..002c394797 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_driver.c @@ -0,0 +1,965 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_driver.c $ + * $Revision: #63 $ + * $Date: 2008/09/24 $ + * $Change: 1101777 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +/** @file + * The dwc_otg_driver module provides the initialization and cleanup entry + * points for the DWC_otg driver. This module will be dynamically installed + * after Linux is booted using the insmod command. When the module is + * installed, the dwc_otg_driver_init function is called. When the module is + * removed (using rmmod), the dwc_otg_driver_cleanup function is called. + * + * This module also defines a data structure for the dwc_otg_driver, which is + * used in conjunction with the standard ARM lm_device structure. These + * structures allow the OTG driver to comply with the standard Linux driver + * model in which devices and drivers are registered with a bus driver. This + * has the benefit that Linux can expose attributes of the driver and device + * in its special sysfs file system. Users can then read or write files in + * this file system to perform diagnostics on the driver components or the + * device. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/types.h> +#include <linux/stat.h> /* permission constants */ +#include <linux/version.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <asm/io.h> + +#include <asm/sizes.h> +#include <mach/pm.h> + +#include "otg_plat.h" +#include "otg_attr.h" +#include "otg_driver.h" +#include "otg_cil.h" +#include "otg_pcd.h" +#include "otg_hcd.h" + +#define DWC_DRIVER_VERSION "2.72a 24-JUN-2008" +#define DWC_DRIVER_DESC "HS OTG USB Controller driver" + +static const char dwc_driver_name[] = "dwc_otg"; + +/*-------------------------------------------------------------------------*/ +/* Encapsulate the module parameter settings */ + +static dwc_otg_core_params_t dwc_otg_module_params = { + .opt = -1, + .otg_cap = -1, + .dma_enable = -1, + .dma_desc_enable = -1, + .dma_burst_size = -1, + .speed = -1, + .host_support_fs_ls_low_power = -1, + .host_ls_low_power_phy_clk = -1, + .enable_dynamic_fifo = -1, + .data_fifo_size = -1, + .dev_rx_fifo_size = -1, + .dev_nperio_tx_fifo_size = -1, + .dev_perio_tx_fifo_size = { + /* dev_perio_tx_fifo_size_1 */ + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1 + /* 15 */ + }, + .host_rx_fifo_size = -1, + .host_nperio_tx_fifo_size = -1, + .host_perio_tx_fifo_size = -1, + .max_transfer_size = -1, + .max_packet_count = -1, + .host_channels = -1, + .dev_endpoints = -1, + .phy_type = -1, + .phy_utmi_width = -1, + .phy_ulpi_ddr = -1, + .phy_ulpi_ext_vbus = -1, + .i2c_enable = -1, + .ulpi_fs_ls = -1, + .ts_dline = -1, + .en_multiple_tx_fifo = -1, + .dev_tx_fifo_size = { + /* dev_tx_fifo_size */ + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1 + /* 15 */ + }, + .thr_ctl = -1, + .tx_thr_length = -1, + .rx_thr_length = -1, + .pti_enable = -1, + .mpi_enable = -1, +}; + +/** + * Global Debug Level Mask. + */ +uint32_t g_dbg_lvl = 0; /* OFF */ + +/** + * This function is called during module intialization to verify that + * the module parameters are in a valid state. + */ +static int check_parameters(dwc_otg_core_if_t *core_if) +{ + int i; + int retval = 0; + +/* Checks if the parameter is outside of its valid range of values */ +#define DWC_OTG_PARAM_TEST(_param_, _low_, _high_) \ + ((dwc_otg_module_params._param_ < (_low_)) || \ + (dwc_otg_module_params._param_ > (_high_))) + +/* If the parameter has been set by the user, check that the parameter value is + * within the value range of values. If not, report a module error. */ +#define DWC_OTG_PARAM_ERR(_param_, _low_, _high_, _string_) \ + do { \ + if (dwc_otg_module_params._param_ != -1) { \ + if (DWC_OTG_PARAM_TEST(_param_, (_low_), (_high_))) { \ + DWC_ERROR("`%d' invalid for parameter `%s'\n", \ + dwc_otg_module_params._param_, _string_); \ + dwc_otg_module_params._param_ = dwc_param_##_param_##_default; \ + retval++; \ + } \ + } \ + } while (0) + + DWC_OTG_PARAM_ERR(opt,0,1,"opt"); + DWC_OTG_PARAM_ERR(otg_cap,0,2,"otg_cap"); + DWC_OTG_PARAM_ERR(dma_enable,0,1,"dma_enable"); + DWC_OTG_PARAM_ERR(dma_desc_enable,0,1,"dma_desc_enable"); + DWC_OTG_PARAM_ERR(speed,0,1,"speed"); + DWC_OTG_PARAM_ERR(host_support_fs_ls_low_power,0,1,"host_support_fs_ls_low_power"); + DWC_OTG_PARAM_ERR(host_ls_low_power_phy_clk,0,1,"host_ls_low_power_phy_clk"); + DWC_OTG_PARAM_ERR(enable_dynamic_fifo,0,1,"enable_dynamic_fifo"); + DWC_OTG_PARAM_ERR(data_fifo_size,32,32768,"data_fifo_size"); + DWC_OTG_PARAM_ERR(dev_rx_fifo_size,16,32768,"dev_rx_fifo_size"); + DWC_OTG_PARAM_ERR(dev_nperio_tx_fifo_size,16,32768,"dev_nperio_tx_fifo_size"); + DWC_OTG_PARAM_ERR(host_rx_fifo_size,16,32768,"host_rx_fifo_size"); + DWC_OTG_PARAM_ERR(host_nperio_tx_fifo_size,16,32768,"host_nperio_tx_fifo_size"); + DWC_OTG_PARAM_ERR(host_perio_tx_fifo_size,16,32768,"host_perio_tx_fifo_size"); + DWC_OTG_PARAM_ERR(max_transfer_size,2047,524288,"max_transfer_size"); + DWC_OTG_PARAM_ERR(max_packet_count,15,511,"max_packet_count"); + DWC_OTG_PARAM_ERR(host_channels,1,16,"host_channels"); + DWC_OTG_PARAM_ERR(dev_endpoints,1,15,"dev_endpoints"); + DWC_OTG_PARAM_ERR(phy_type,0,2,"phy_type"); + DWC_OTG_PARAM_ERR(phy_ulpi_ddr,0,1,"phy_ulpi_ddr"); + DWC_OTG_PARAM_ERR(phy_ulpi_ext_vbus,0,1,"phy_ulpi_ext_vbus"); + DWC_OTG_PARAM_ERR(i2c_enable,0,1,"i2c_enable"); + DWC_OTG_PARAM_ERR(ulpi_fs_ls,0,1,"ulpi_fs_ls"); + DWC_OTG_PARAM_ERR(ts_dline,0,1,"ts_dline"); + + if (dwc_otg_module_params.dma_burst_size != -1) { + if (DWC_OTG_PARAM_TEST(dma_burst_size,1,1) && + DWC_OTG_PARAM_TEST(dma_burst_size,4,4) && + DWC_OTG_PARAM_TEST(dma_burst_size,8,8) && + DWC_OTG_PARAM_TEST(dma_burst_size,16,16) && + DWC_OTG_PARAM_TEST(dma_burst_size,32,32) && + DWC_OTG_PARAM_TEST(dma_burst_size,64,64) && + DWC_OTG_PARAM_TEST(dma_burst_size,128,128) && + DWC_OTG_PARAM_TEST(dma_burst_size,256,256)) { + DWC_ERROR("`%d' invalid for parameter `dma_burst_size'\n", + dwc_otg_module_params.dma_burst_size); + dwc_otg_module_params.dma_burst_size = 32; + retval++; + } + + { + uint8_t brst_sz = 0; + while(dwc_otg_module_params.dma_burst_size > 1) { + brst_sz ++; + dwc_otg_module_params.dma_burst_size >>= 1; + } + dwc_otg_module_params.dma_burst_size = brst_sz; + } + } + + if (dwc_otg_module_params.phy_utmi_width != -1) { + if (DWC_OTG_PARAM_TEST(phy_utmi_width, 8, 8) && + DWC_OTG_PARAM_TEST(phy_utmi_width, 16, 16)) { + DWC_ERROR("`%d' invalid for parameter `phy_utmi_width'\n", + dwc_otg_module_params.phy_utmi_width); + dwc_otg_module_params.phy_utmi_width = 16; + retval++; + } + } + + for (i = 0; i < 15; i++) { + /** @todo should be like above */ + //DWC_OTG_PARAM_ERR(dev_perio_tx_fifo_size[i], 4, 768, "dev_perio_tx_fifo_size"); + if (dwc_otg_module_params.dev_perio_tx_fifo_size[i] != -1) { + if (DWC_OTG_PARAM_TEST(dev_perio_tx_fifo_size[i], 4, 768)) { + DWC_ERROR("`%d' invalid for parameter `%s_%d'\n", + dwc_otg_module_params.dev_perio_tx_fifo_size[i], "dev_perio_tx_fifo_size", i); + dwc_otg_module_params.dev_perio_tx_fifo_size[i] = dwc_param_dev_perio_tx_fifo_size_default; + retval++; + } + } + } + + DWC_OTG_PARAM_ERR(en_multiple_tx_fifo, 0, 1, "en_multiple_tx_fifo"); + + for (i = 0; i < 15; i++) { + /** @todo should be like above */ + //DWC_OTG_PARAM_ERR(dev_tx_fifo_size[i], 4, 768, "dev_tx_fifo_size"); + if (dwc_otg_module_params.dev_tx_fifo_size[i] != -1) { + if (DWC_OTG_PARAM_TEST(dev_tx_fifo_size[i], 4, 768)) { + DWC_ERROR("`%d' invalid for parameter `%s_%d'\n", + dwc_otg_module_params.dev_tx_fifo_size[i], "dev_tx_fifo_size", i); + dwc_otg_module_params.dev_tx_fifo_size[i] = dwc_param_dev_tx_fifo_size_default; + retval++; + } + } + } + + DWC_OTG_PARAM_ERR(thr_ctl, 0, 7, "thr_ctl"); + DWC_OTG_PARAM_ERR(tx_thr_length, 8, 128, "tx_thr_length"); + DWC_OTG_PARAM_ERR(rx_thr_length, 8, 128, "rx_thr_length"); + + DWC_OTG_PARAM_ERR(pti_enable,0,1,"pti_enable"); + DWC_OTG_PARAM_ERR(mpi_enable,0,1,"mpi_enable"); + + /* At this point, all module parameters that have been set by the user + * are valid, and those that have not are left unset. Now set their + * default values and/or check the parameters against the hardware + * configurations of the OTG core. */ + +/* This sets the parameter to the default value if it has not been set by the + * user */ +#define DWC_OTG_PARAM_SET_DEFAULT(_param_) \ + ({ \ + int changed = 1; \ + if (dwc_otg_module_params._param_ == -1) { \ + changed = 0; \ + dwc_otg_module_params._param_ = dwc_param_##_param_##_default; \ + } \ + changed; \ + }) + +/* This checks the macro agains the hardware configuration to see if it is + * valid. It is possible that the default value could be invalid. In this + * case, it will report a module error if the user touched the parameter. + * Otherwise it will adjust the value without any error. */ +#define DWC_OTG_PARAM_CHECK_VALID(_param_, _str_, _is_valid_, _set_valid_) \ + ({ \ + int changed = DWC_OTG_PARAM_SET_DEFAULT(_param_); \ + int error = 0; \ + if (!(_is_valid_)) { \ + if (changed) { \ + DWC_ERROR("`%d' invalid for parameter `%s'. Check HW configuration.\n", dwc_otg_module_params._param_, _str_); \ + error = 1; \ + } \ + dwc_otg_module_params._param_ = (_set_valid_); \ + } \ + error; \ + }) + + /* OTG Cap */ + retval += DWC_OTG_PARAM_CHECK_VALID(otg_cap, "otg_cap", + ({ + int valid; + valid = 1; + switch (dwc_otg_module_params.otg_cap) { + case DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE: + if (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) + valid = 0; + break; + case DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE: + if ((core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) && + (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG) && + (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) && + (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) { + valid = 0; + } + break; + case DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE: + /* always valid */ + break; + } + valid; + }), + (((core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) || + (core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG) || + (core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) || + (core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) ? + DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE : + DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE)); + + retval += DWC_OTG_PARAM_CHECK_VALID(dma_enable, "dma_enable", + ((dwc_otg_module_params.dma_enable == 1) && (core_if->hwcfg2.b.architecture == 0)) ? 0 : 1, + 0); + + retval += DWC_OTG_PARAM_CHECK_VALID(dma_desc_enable, "dma_desc_enable", + ((dwc_otg_module_params.dma_desc_enable == 1) && + ((dwc_otg_module_params.dma_enable == 0) || (core_if->hwcfg4.b.desc_dma == 0))) ? 0 : 1, + 0); + + retval += DWC_OTG_PARAM_CHECK_VALID(opt, "opt", 1, 0); + + DWC_OTG_PARAM_SET_DEFAULT(dma_burst_size); + + retval += DWC_OTG_PARAM_CHECK_VALID(host_support_fs_ls_low_power, + "host_support_fs_ls_low_power", + 1, 0); + + retval += DWC_OTG_PARAM_CHECK_VALID(enable_dynamic_fifo, + "enable_dynamic_fifo", + ((dwc_otg_module_params.enable_dynamic_fifo == 0) || + (core_if->hwcfg2.b.dynamic_fifo == 1)), 0); + + retval += DWC_OTG_PARAM_CHECK_VALID(data_fifo_size, + "data_fifo_size", + (dwc_otg_module_params.data_fifo_size <= core_if->hwcfg3.b.dfifo_depth), + core_if->hwcfg3.b.dfifo_depth); + + retval += DWC_OTG_PARAM_CHECK_VALID(dev_rx_fifo_size, + "dev_rx_fifo_size", + (dwc_otg_module_params.dev_rx_fifo_size <= dwc_read_reg32(&core_if->core_global_regs->grxfsiz)), + dwc_read_reg32(&core_if->core_global_regs->grxfsiz)); + + retval += DWC_OTG_PARAM_CHECK_VALID(dev_nperio_tx_fifo_size, + "dev_nperio_tx_fifo_size", + (dwc_otg_module_params.dev_nperio_tx_fifo_size <= (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16)), + (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16)); + + retval += DWC_OTG_PARAM_CHECK_VALID(host_rx_fifo_size, + "host_rx_fifo_size", + (dwc_otg_module_params.host_rx_fifo_size <= dwc_read_reg32(&core_if->core_global_regs->grxfsiz)), + dwc_read_reg32(&core_if->core_global_regs->grxfsiz)); + + retval += DWC_OTG_PARAM_CHECK_VALID(host_nperio_tx_fifo_size, + "host_nperio_tx_fifo_size", + (dwc_otg_module_params.host_nperio_tx_fifo_size <= (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16)), + (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16)); + + retval += DWC_OTG_PARAM_CHECK_VALID(host_perio_tx_fifo_size, + "host_perio_tx_fifo_size", + (dwc_otg_module_params.host_perio_tx_fifo_size <= ((dwc_read_reg32(&core_if->core_global_regs->hptxfsiz) >> 16))), + ((dwc_read_reg32(&core_if->core_global_regs->hptxfsiz) >> 16))); + + retval += DWC_OTG_PARAM_CHECK_VALID(max_transfer_size, + "max_transfer_size", + (dwc_otg_module_params.max_transfer_size < (1 << (core_if->hwcfg3.b.xfer_size_cntr_width + 11))), + ((1 << (core_if->hwcfg3.b.xfer_size_cntr_width + 11)) - 1)); + + retval += DWC_OTG_PARAM_CHECK_VALID(max_packet_count, + "max_packet_count", + (dwc_otg_module_params.max_packet_count < (1 << (core_if->hwcfg3.b.packet_size_cntr_width + 4))), + ((1 << (core_if->hwcfg3.b.packet_size_cntr_width + 4)) - 1)); + + retval += DWC_OTG_PARAM_CHECK_VALID(host_channels, + "host_channels", + (dwc_otg_module_params.host_channels <= (core_if->hwcfg2.b.num_host_chan + 1)), + (core_if->hwcfg2.b.num_host_chan + 1)); + + retval += DWC_OTG_PARAM_CHECK_VALID(dev_endpoints, + "dev_endpoints", + (dwc_otg_module_params.dev_endpoints <= (core_if->hwcfg2.b.num_dev_ep)), + core_if->hwcfg2.b.num_dev_ep); + +/* + * Define the following to disable the FS PHY Hardware checking. This is for + * internal testing only. + * + * #define NO_FS_PHY_HW_CHECKS + */ + +#ifdef NO_FS_PHY_HW_CHECKS + retval += DWC_OTG_PARAM_CHECK_VALID(phy_type, + "phy_type", 1, 0); +#else + retval += DWC_OTG_PARAM_CHECK_VALID(phy_type, + "phy_type", + ({ + int valid = 0; + if ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_UTMI) && + ((core_if->hwcfg2.b.hs_phy_type == 1) || + (core_if->hwcfg2.b.hs_phy_type == 3))) { + valid = 1; + } + else if ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_ULPI) && + ((core_if->hwcfg2.b.hs_phy_type == 2) || + (core_if->hwcfg2.b.hs_phy_type == 3))) { + valid = 1; + } + else if ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) && + (core_if->hwcfg2.b.fs_phy_type == 1)) { + valid = 1; + } + valid; + }), + ({ + int set = DWC_PHY_TYPE_PARAM_FS; + if (core_if->hwcfg2.b.hs_phy_type) { + if ((core_if->hwcfg2.b.hs_phy_type == 3) || + (core_if->hwcfg2.b.hs_phy_type == 1)) { + set = DWC_PHY_TYPE_PARAM_UTMI; + } + else { + set = DWC_PHY_TYPE_PARAM_ULPI; + } + } + set; + })); +#endif + + retval += DWC_OTG_PARAM_CHECK_VALID(speed, "speed", + (dwc_otg_module_params.speed == 0) && (dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) ? 0 : 1, + dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS ? 1 : 0); + + retval += DWC_OTG_PARAM_CHECK_VALID(host_ls_low_power_phy_clk, + "host_ls_low_power_phy_clk", + ((dwc_otg_module_params.host_ls_low_power_phy_clk == DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ) && (dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) ? 0 : 1), + ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) ? DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ : DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ)); + + DWC_OTG_PARAM_SET_DEFAULT(phy_ulpi_ddr); + DWC_OTG_PARAM_SET_DEFAULT(phy_ulpi_ext_vbus); + DWC_OTG_PARAM_SET_DEFAULT(phy_utmi_width); + DWC_OTG_PARAM_SET_DEFAULT(ulpi_fs_ls); + DWC_OTG_PARAM_SET_DEFAULT(ts_dline); + +#ifdef NO_FS_PHY_HW_CHECKS + retval += DWC_OTG_PARAM_CHECK_VALID(i2c_enable, "i2c_enable", 1, 0); +#else + retval += DWC_OTG_PARAM_CHECK_VALID(i2c_enable, + "i2c_enable", + (dwc_otg_module_params.i2c_enable == 1) && (core_if->hwcfg3.b.i2c == 0) ? 0 : 1, + 0); +#endif + + for (i = 0; i < 15; i++) { + int changed = 1; + int error = 0; + + if (dwc_otg_module_params.dev_perio_tx_fifo_size[i] == -1) { + changed = 0; + dwc_otg_module_params.dev_perio_tx_fifo_size[i] = dwc_param_dev_perio_tx_fifo_size_default; + } + if (!(dwc_otg_module_params.dev_perio_tx_fifo_size[i] <= (dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i])))) { + if (changed) { + DWC_ERROR("`%d' invalid for parameter `dev_perio_fifo_size_%d'. Check HW configuration.\n", dwc_otg_module_params.dev_perio_tx_fifo_size[i], i); + error = 1; + } + dwc_otg_module_params.dev_perio_tx_fifo_size[i] = dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i]); + } + retval += error; + } + + retval += DWC_OTG_PARAM_CHECK_VALID(en_multiple_tx_fifo, "en_multiple_tx_fifo", + ((dwc_otg_module_params.en_multiple_tx_fifo == 1) && (core_if->hwcfg4.b.ded_fifo_en == 0)) ? 0 : 1, + 0); + + for (i = 0; i < 15; i++) { + int changed = 1; + int error = 0; + + if (dwc_otg_module_params.dev_tx_fifo_size[i] == -1) { + changed = 0; + dwc_otg_module_params.dev_tx_fifo_size[i] = dwc_param_dev_tx_fifo_size_default; + } + if (!(dwc_otg_module_params.dev_tx_fifo_size[i] <= (dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i])))) { + if (changed) { + DWC_ERROR("%d' invalid for parameter `dev_perio_fifo_size_%d'. Check HW configuration.\n", dwc_otg_module_params.dev_tx_fifo_size[i], i); + error = 1; + } + dwc_otg_module_params.dev_tx_fifo_size[i] = dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i]); + } + retval += error; + } + + retval += DWC_OTG_PARAM_CHECK_VALID(thr_ctl, "thr_ctl", + ((dwc_otg_module_params.thr_ctl != 0) && ((dwc_otg_module_params.dma_enable == 0) || (core_if->hwcfg4.b.ded_fifo_en == 0))) ? 0 : 1, + 0); + + DWC_OTG_PARAM_SET_DEFAULT(tx_thr_length); + DWC_OTG_PARAM_SET_DEFAULT(rx_thr_length); + + retval += DWC_OTG_PARAM_CHECK_VALID(pti_enable, "pti_enable", + ((dwc_otg_module_params.pti_enable == 0) || ((dwc_otg_module_params.pti_enable == 1) && (core_if->snpsid >= 0x4F54272A))) ? 1 : 0, + 0); + + retval += DWC_OTG_PARAM_CHECK_VALID(mpi_enable, "mpi_enable", + ((dwc_otg_module_params.mpi_enable == 0) || ((dwc_otg_module_params.mpi_enable == 1) && (core_if->hwcfg2.b.multi_proc_int == 1))) ? 1 : 0, + 0); + return retval; +} + +/** + * This function is the top level interrupt handler for the Common + * (Device and host modes) interrupts. + */ +static irqreturn_t dwc_otg_common_irq(int irq, void *dev) +{ + dwc_otg_device_t *otg_dev = dev; + int32_t retval = IRQ_NONE; + + retval = dwc_otg_handle_common_intr(otg_dev->core_if); + return IRQ_RETVAL(retval); +} + +/** + * This function is called when a lm_device is unregistered with the + * dwc_otg_driver. This happens, for example, when the rmmod command is + * executed. The device may or may not be electrically present. If it is + * present, the driver stops device processing. Any resources used on behalf + * of this device are freed. + * + * @param[in] lmdev + */ +static int dwc_otg_driver_cleanup(struct platform_device *pdev) +{ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); + DWC_DEBUGPL(DBG_ANY, "%s(%p)\n", __func__, pdev); + + if (!otg_dev) { + /* Memory allocation for the dwc_otg_device failed. */ + DWC_DEBUGPL(DBG_ANY, "%s: otg_dev NULL!\n", __func__); + return 0; + } + + /* + * Free the IRQ + */ + if (otg_dev->common_irq_installed) { + free_irq(otg_dev->irq, otg_dev); + } + +#ifndef DWC_DEVICE_ONLY + if (otg_dev->hcd) { + dwc_otg_hcd_remove(pdev); + } else { + DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->hcd NULL!\n", __func__); + return 0; + } +#endif + +#ifndef DWC_HOST_ONLY + if (otg_dev->pcd) { + dwc_otg_pcd_remove(pdev); + } +#endif + if (otg_dev->core_if) { + dwc_otg_cil_remove(otg_dev->core_if); + } + + /* + * Remove the device attributes + */ + dwc_otg_attr_remove(pdev); + + /* + * Return the memory. + */ + if (otg_dev->base) { + iounmap(otg_dev->base); + } + kfree(otg_dev); + + /* + * Clear the drvdata pointer. + */ + platform_set_drvdata(pdev, 0); + + return 0; +} + +/** + * This function is called when an lm_device is bound to a + * dwc_otg_driver. It creates the driver components required to + * control the device (CIL, HCD, and PCD) and it initializes the + * device. The driver components are stored in a dwc_otg_device + * structure. A reference to the dwc_otg_device is saved in the + * lm_device. This allows the driver to access the dwc_otg_device + * structure on subsequent calls to driver methods for this device. + * + * @param[in] lmdev lm_device definition + */ +static int __devinit dwc_otg_driver_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + int retval = 0; + uint32_t snpsid; + dwc_otg_device_t *dwc_otg_device; + struct resource *res; + + dev_dbg(dev, "dwc_otg_driver_probe(%p)\n", pdev); + + dwc_otg_device = kmalloc(sizeof(dwc_otg_device_t), GFP_KERNEL); + + if (!dwc_otg_device) { + dev_err(dev, "kmalloc of dwc_otg_device failed\n"); + retval = -ENOMEM; + goto fail; + } + + memset(dwc_otg_device, 0, sizeof(*dwc_otg_device)); + dwc_otg_device->reg_offset = 0xFFFFFFFF; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "Found OTG with no register addr.\n"); + retval = -ENODEV; + goto fail; + } + dwc_otg_device->rsrc_start = res->start; + dwc_otg_device->rsrc_len = res->end - res->start + 1; + + dwc_otg_device->base = ioremap(dwc_otg_device->rsrc_start, dwc_otg_device->rsrc_len); + + if (!dwc_otg_device->base) { + dev_err(dev, "ioremap() failed\n"); + retval = -ENOMEM; + goto fail; + } + dev_dbg(dev, "base=0x%08x\n", (unsigned)dwc_otg_device->base); + + /* + * Attempt to ensure this device is really a DWC_otg Controller. + * Read and verify the SNPSID register contents. The value should be + * 0x45F42XXX, which corresponds to "OT2", as in "OTG version 2.XX". + */ + snpsid = dwc_read_reg32((uint32_t *)((uint8_t *)dwc_otg_device->base + 0x40)); + + if ((snpsid & 0xFFFFF000) != OTG_CORE_REV_2_00) { + dev_err(dev, "Bad value for SNPSID: 0x%08x\n", snpsid); + retval = -EINVAL; + goto fail; + } + + DWC_PRINT("Core Release: %x.%x%x%x\n", + (snpsid >> 12 & 0xF), + (snpsid >> 8 & 0xF), + (snpsid >> 4 & 0xF), + (snpsid & 0xF)); + + /* + * Initialize driver data to point to the global DWC_otg + * Device structure. + */ + platform_set_drvdata(pdev, dwc_otg_device); + + dev_dbg(dev, "dwc_otg_device=0x%p\n", dwc_otg_device); + + dwc_otg_device->core_if = dwc_otg_cil_init(dwc_otg_device->base, + &dwc_otg_module_params); + + dwc_otg_device->core_if->snpsid = snpsid; + + if (!dwc_otg_device->core_if) { + dev_err(dev, "CIL initialization failed!\n"); + retval = -ENOMEM; + goto fail; + } + + /* + * Validate parameter values. + */ + if (check_parameters(dwc_otg_device->core_if)) { + retval = -EINVAL; + goto fail; + } + + /* + * Create Device Attributes in sysfs + */ + dwc_otg_attr_create(pdev); + + /* + * Disable the global interrupt until all the interrupt + * handlers are installed. + */ + dwc_otg_disable_global_interrupts(dwc_otg_device->core_if); + + /* + * Install the interrupt handler for the common interrupts before + * enabling common interrupts in core_init below. + */ + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!res) { + dev_err(dev, "Fount OTG with to IRQ.\n"); + retval = -ENODEV; + goto fail; + } + dwc_otg_device->irq = res->start; + + retval = request_irq(res->start, dwc_otg_common_irq, + IRQF_SHARED, "dwc_otg", dwc_otg_device); + if (retval) { + DWC_ERROR("request of irq%d failed\n", res->start); + retval = -EBUSY; + goto fail; + } else { + dwc_otg_device->common_irq_installed = 1; + } + + /* + * Initialize the DWC_otg core. + */ + dwc_otg_core_init(dwc_otg_device->core_if); + +#ifndef DWC_HOST_ONLY + /* + * Initialize the PCD + */ + retval = dwc_otg_pcd_init(pdev); + if (retval != 0) { + DWC_ERROR("dwc_otg_pcd_init failed\n"); + dwc_otg_device->pcd = NULL; + goto fail; + } +#endif +#ifndef DWC_DEVICE_ONLY + /* + * Initialize the HCD + */ + retval = dwc_otg_hcd_init(pdev); + if (retval != 0) { + DWC_ERROR("dwc_otg_hcd_init failed\n"); + dwc_otg_device->hcd = NULL; + goto fail; + } +#endif + + /* + * Enable the global interrupt after all the interrupt + * handlers are installed. + */ + dwc_otg_enable_global_interrupts(dwc_otg_device->core_if); + + return 0; + + fail: + dwc_otg_driver_cleanup(pdev); + return retval; +} + +static int __devexit dwc_otg_driver_remove(struct platform_device *pdev) +{ + return dwc_otg_driver_cleanup(pdev); +} + +static struct platform_driver dwc_otg_platform_driver = { + .driver.name = "dwc_otg", + .probe = dwc_otg_driver_probe, + .remove = __devexit_p(dwc_otg_driver_remove), +}; + +static int __init dwc_otg_init_module(void) +{ + return platform_driver_register(&dwc_otg_platform_driver); +} + +static void __exit dwc_otg_cleanup_module(void) +{ + platform_driver_unregister(&dwc_otg_platform_driver); +} + +module_init(dwc_otg_init_module); +module_exit(dwc_otg_cleanup_module); + +/** + * This function is called when the driver is removed from the kernel + * with the rmmod command. The driver unregisters itself with its bus + * driver. + * + */ + +MODULE_DESCRIPTION(DWC_DRIVER_DESC); +MODULE_AUTHOR("Synopsys Inc."); +MODULE_LICENSE("GPL"); + +module_param_named(otg_cap, dwc_otg_module_params.otg_cap, int, 0444); +MODULE_PARM_DESC(otg_cap, "OTG Capabilities 0=HNP&SRP 1=SRP Only 2=None"); +module_param_named(opt, dwc_otg_module_params.opt, int, 0444); +MODULE_PARM_DESC(opt, "OPT Mode"); +module_param_named(dma_enable, dwc_otg_module_params.dma_enable, int, 0444); +MODULE_PARM_DESC(dma_enable, "DMA Mode 0=Slave 1=DMA enabled"); + +module_param_named(dma_desc_enable, dwc_otg_module_params.dma_desc_enable, int, 0444); +MODULE_PARM_DESC(dma_desc_enable, "DMA Desc Mode 0=Address DMA 1=DMA Descriptor enabled"); + +module_param_named(dma_burst_size, dwc_otg_module_params.dma_burst_size, int, 0444); +MODULE_PARM_DESC(dma_burst_size, "DMA Burst Size 1, 4, 8, 16, 32, 64, 128, 256"); +module_param_named(speed, dwc_otg_module_params.speed, int, 0444); +MODULE_PARM_DESC(speed, "Speed 0=High Speed 1=Full Speed"); +module_param_named(host_support_fs_ls_low_power, dwc_otg_module_params.host_support_fs_ls_low_power, int, 0444); +MODULE_PARM_DESC(host_support_fs_ls_low_power, "Support Low Power w/FS or LS 0=Support 1=Don't Support"); +module_param_named(host_ls_low_power_phy_clk, dwc_otg_module_params.host_ls_low_power_phy_clk, int, 0444); +MODULE_PARM_DESC(host_ls_low_power_phy_clk, "Low Speed Low Power Clock 0=48Mhz 1=6Mhz"); +module_param_named(enable_dynamic_fifo, dwc_otg_module_params.enable_dynamic_fifo, int, 0444); +MODULE_PARM_DESC(enable_dynamic_fifo, "0=cC Setting 1=Allow Dynamic Sizing"); +module_param_named(data_fifo_size, dwc_otg_module_params.data_fifo_size, int, 0444); +MODULE_PARM_DESC(data_fifo_size, "Total number of words in the data FIFO memory 32-32768"); +module_param_named(dev_rx_fifo_size, dwc_otg_module_params.dev_rx_fifo_size, int, 0444); +MODULE_PARM_DESC(dev_rx_fifo_size, "Number of words in the Rx FIFO 16-32768"); +module_param_named(dev_nperio_tx_fifo_size, dwc_otg_module_params.dev_nperio_tx_fifo_size, int, 0444); +MODULE_PARM_DESC(dev_nperio_tx_fifo_size, "Number of words in the non-periodic Tx FIFO 16-32768"); +module_param_named(dev_perio_tx_fifo_size_1, dwc_otg_module_params.dev_perio_tx_fifo_size[0], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_1, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_2, dwc_otg_module_params.dev_perio_tx_fifo_size[1], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_2, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_3, dwc_otg_module_params.dev_perio_tx_fifo_size[2], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_3, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_4, dwc_otg_module_params.dev_perio_tx_fifo_size[3], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_4, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_5, dwc_otg_module_params.dev_perio_tx_fifo_size[4], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_5, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_6, dwc_otg_module_params.dev_perio_tx_fifo_size[5], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_6, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_7, dwc_otg_module_params.dev_perio_tx_fifo_size[6], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_7, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_8, dwc_otg_module_params.dev_perio_tx_fifo_size[7], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_8, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_9, dwc_otg_module_params.dev_perio_tx_fifo_size[8], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_9, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_10, dwc_otg_module_params.dev_perio_tx_fifo_size[9], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_10, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_11, dwc_otg_module_params.dev_perio_tx_fifo_size[10], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_11, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_12, dwc_otg_module_params.dev_perio_tx_fifo_size[11], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_12, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_13, dwc_otg_module_params.dev_perio_tx_fifo_size[12], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_13, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_14, dwc_otg_module_params.dev_perio_tx_fifo_size[13], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_14, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_15, dwc_otg_module_params.dev_perio_tx_fifo_size[14], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_15, "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(host_rx_fifo_size, dwc_otg_module_params.host_rx_fifo_size, int, 0444); +MODULE_PARM_DESC(host_rx_fifo_size, "Number of words in the Rx FIFO 16-32768"); +module_param_named(host_nperio_tx_fifo_size, dwc_otg_module_params.host_nperio_tx_fifo_size, int, 0444); +MODULE_PARM_DESC(host_nperio_tx_fifo_size, "Number of words in the non-periodic Tx FIFO 16-32768"); +module_param_named(host_perio_tx_fifo_size, dwc_otg_module_params.host_perio_tx_fifo_size, int, 0444); +MODULE_PARM_DESC(host_perio_tx_fifo_size, "Number of words in the host periodic Tx FIFO 16-32768"); +module_param_named(max_transfer_size, dwc_otg_module_params.max_transfer_size, int, 0444); +/** @todo Set the max to 512K, modify checks */ +MODULE_PARM_DESC(max_transfer_size, "The maximum transfer size supported in bytes 2047-65535"); +module_param_named(max_packet_count, dwc_otg_module_params.max_packet_count, int, 0444); +MODULE_PARM_DESC(max_packet_count, "The maximum number of packets in a transfer 15-511"); +module_param_named(host_channels, dwc_otg_module_params.host_channels, int, 0444); +MODULE_PARM_DESC(host_channels, "The number of host channel registers to use 1-16"); +module_param_named(dev_endpoints, dwc_otg_module_params.dev_endpoints, int, 0444); +MODULE_PARM_DESC(dev_endpoints, "The number of endpoints in addition to EP0 available for device mode 1-15"); +module_param_named(phy_type, dwc_otg_module_params.phy_type, int, 0444); +MODULE_PARM_DESC(phy_type, "0=Reserved 1=UTMI+ 2=ULPI"); +module_param_named(phy_utmi_width, dwc_otg_module_params.phy_utmi_width, int, 0444); +MODULE_PARM_DESC(phy_utmi_width, "Specifies the UTMI+ Data Width 8 or 16 bits"); +module_param_named(phy_ulpi_ddr, dwc_otg_module_params.phy_ulpi_ddr, int, 0444); +MODULE_PARM_DESC(phy_ulpi_ddr, "ULPI at double or single data rate 0=Single 1=Double"); +module_param_named(phy_ulpi_ext_vbus, dwc_otg_module_params.phy_ulpi_ext_vbus, int, 0444); +MODULE_PARM_DESC(phy_ulpi_ext_vbus, "ULPI PHY using internal or external vbus 0=Internal"); +module_param_named(i2c_enable, dwc_otg_module_params.i2c_enable, int, 0444); +MODULE_PARM_DESC(i2c_enable, "FS PHY Interface"); +module_param_named(ulpi_fs_ls, dwc_otg_module_params.ulpi_fs_ls, int, 0444); +MODULE_PARM_DESC(ulpi_fs_ls, "ULPI PHY FS/LS mode only"); +module_param_named(ts_dline, dwc_otg_module_params.ts_dline, int, 0444); +MODULE_PARM_DESC(ts_dline, "Term select Dline pulsing for all PHYs"); +module_param_named(debug, g_dbg_lvl, int, 0444); +MODULE_PARM_DESC(debug, ""); + +module_param_named(en_multiple_tx_fifo, dwc_otg_module_params.en_multiple_tx_fifo, int, 0444); +MODULE_PARM_DESC(en_multiple_tx_fifo, "Dedicated Non Periodic Tx FIFOs 0=disabled 1=enabled"); +module_param_named(dev_tx_fifo_size_1, dwc_otg_module_params.dev_tx_fifo_size[0], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_1, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_2, dwc_otg_module_params.dev_tx_fifo_size[1], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_2, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_3, dwc_otg_module_params.dev_tx_fifo_size[2], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_3, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_4, dwc_otg_module_params.dev_tx_fifo_size[3], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_4, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_5, dwc_otg_module_params.dev_tx_fifo_size[4], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_5, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_6, dwc_otg_module_params.dev_tx_fifo_size[5], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_6, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_7, dwc_otg_module_params.dev_tx_fifo_size[6], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_7, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_8, dwc_otg_module_params.dev_tx_fifo_size[7], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_8, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_9, dwc_otg_module_params.dev_tx_fifo_size[8], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_9, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_10, dwc_otg_module_params.dev_tx_fifo_size[9], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_10, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_11, dwc_otg_module_params.dev_tx_fifo_size[10], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_11, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_12, dwc_otg_module_params.dev_tx_fifo_size[11], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_12, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_13, dwc_otg_module_params.dev_tx_fifo_size[12], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_13, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_14, dwc_otg_module_params.dev_tx_fifo_size[13], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_14, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_15, dwc_otg_module_params.dev_tx_fifo_size[14], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_15, "Number of words in the Tx FIFO 4-768"); + +module_param_named(thr_ctl, dwc_otg_module_params.thr_ctl, int, 0444); +MODULE_PARM_DESC(thr_ctl, "Thresholding enable flag bit 0 - non ISO Tx thr., 1 - ISO Tx thr., 2 - Rx thr.- bit 0=disabled 1=enabled"); +module_param_named(tx_thr_length, dwc_otg_module_params.tx_thr_length, int, 0444); +MODULE_PARM_DESC(tx_thr_length, "Tx Threshold length in 32 bit DWORDs"); +module_param_named(rx_thr_length, dwc_otg_module_params.rx_thr_length, int, 0444); +MODULE_PARM_DESC(rx_thr_length, "Rx Threshold length in 32 bit DWORDs"); + +module_param_named(pti_enable, dwc_otg_module_params.pti_enable, int, 0444); +MODULE_PARM_DESC(pti_enable, "Per Transfer Interrupt mode 0=disabled 1=enabled"); + +module_param_named(mpi_enable, dwc_otg_module_params.mpi_enable, int, 0444); +MODULE_PARM_DESC(mpi_enable, "Multiprocessor Interrupt mode 0=disabled 1=enabled"); diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_driver.h b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_driver.h new file mode 100644 index 0000000000..2f56a26c4b --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_driver.h @@ -0,0 +1,62 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_driver.h $ + * $Revision: #12 $ + * $Date: 2008/07/15 $ + * $Change: 1064918 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#ifndef __DWC_OTG_DRIVER_H__ +#define __DWC_OTG_DRIVER_H__ + +/** @file + * This file contains the interface to the Linux driver. + */ +#include "otg_cil.h" + +/* Type declarations */ +struct dwc_otg_pcd; +struct dwc_otg_hcd; + +/** + * This structure is a wrapper that encapsulates the driver components used to + * manage a single DWC_otg controller. + */ +typedef struct dwc_otg_device { + void *base; + dwc_otg_core_if_t *core_if; + uint32_t reg_offset; + struct dwc_otg_pcd *pcd; + struct dwc_otg_hcd *hcd; + uint8_t common_irq_installed; + int irq; + uint32_t rsrc_start; + uint32_t rsrc_len; +} dwc_otg_device_t; + +#endif diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd.c b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd.c new file mode 100644 index 0000000000..e51b8c8d29 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd.c @@ -0,0 +1,2752 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd.c $ + * $Revision: #75 $ + * $Date: 2008/07/15 $ + * $Change: 1064940 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY + +/** + * @file + * + * This file contains the implementation of the HCD. In Linux, the HCD + * implements the hc_driver API. + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/errno.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/string.h> +#include <linux/dma-mapping.h> +#include <linux/version.h> + +#include <mach/irqs.h> + +#include "otg_driver.h" +#include "otg_hcd.h" +#include "otg_regs.h" + +static const char dwc_otg_hcd_name[] = "dwc_otg_hcd"; + +static const struct hc_driver dwc_otg_hc_driver = { + + .description = dwc_otg_hcd_name, + .product_desc = "DWC OTG Controller", + .hcd_priv_size = sizeof(dwc_otg_hcd_t), + .irq = dwc_otg_hcd_irq, + .flags = HCD_MEMORY | HCD_USB2, + .start = dwc_otg_hcd_start, + .stop = dwc_otg_hcd_stop, + .urb_enqueue = dwc_otg_hcd_urb_enqueue, + .urb_dequeue = dwc_otg_hcd_urb_dequeue, + .endpoint_disable = dwc_otg_hcd_endpoint_disable, + .get_frame_number = dwc_otg_hcd_get_frame_number, + .hub_status_data = dwc_otg_hcd_hub_status_data, + .hub_control = dwc_otg_hcd_hub_control, +}; + +/** + * Work queue function for starting the HCD when A-Cable is connected. + * The dwc_otg_hcd_start() must be called in a process context. + */ +static void hcd_start_func(struct work_struct *_work) +{ + struct delayed_work *dw = container_of(_work, struct delayed_work, work); + struct dwc_otg_hcd *otg_hcd = container_of(dw, struct dwc_otg_hcd, start_work); + struct usb_hcd *usb_hcd = container_of((void *)otg_hcd, struct usb_hcd, hcd_priv); + DWC_DEBUGPL(DBG_HCDV, "%s() %p\n", __func__, usb_hcd); + if (usb_hcd) { + dwc_otg_hcd_start(usb_hcd); + } +} + +/** + * HCD Callback function for starting the HCD when A-Cable is + * connected. + * + * @param p void pointer to the <code>struct usb_hcd</code> + */ +static int32_t dwc_otg_hcd_start_cb(void *p) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(p); + dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; + hprt0_data_t hprt0; + + if (core_if->op_state == B_HOST) { + /* + * Reset the port. During a HNP mode switch the reset + * needs to occur within 1ms and have a duration of at + * least 50ms. + */ + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtrst = 1; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + ((struct usb_hcd *)p)->self.is_b_host = 1; + } else { + ((struct usb_hcd *)p)->self.is_b_host = 0; + } + + /* Need to start the HCD in a non-interrupt context. */ +// INIT_WORK(&dwc_otg_hcd->start_work, hcd_start_func); + INIT_DELAYED_WORK(&dwc_otg_hcd->start_work, hcd_start_func); +// schedule_work(&dwc_otg_hcd->start_work); + queue_delayed_work(core_if->wq_otg, &dwc_otg_hcd->start_work, 50 * HZ / 1000); + + return 1; +} + +/** + * HCD Callback function for stopping the HCD. + * + * @param p void pointer to the <code>struct usb_hcd</code> + */ +static int32_t dwc_otg_hcd_stop_cb(void *p) +{ + struct usb_hcd *usb_hcd = (struct usb_hcd *)p; + DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, p); + dwc_otg_hcd_stop(usb_hcd); + return 1; +} + +static void del_xfer_timers(dwc_otg_hcd_t *hcd) +{ +#ifdef DEBUG + int i; + int num_channels = hcd->core_if->core_params->host_channels; + for (i = 0; i < num_channels; i++) { + del_timer(&hcd->core_if->hc_xfer_timer[i]); + } +#endif +} + +static void del_timers(dwc_otg_hcd_t *hcd) +{ + del_xfer_timers(hcd); + del_timer(&hcd->conn_timer); +} + +/** + * Processes all the URBs in a single list of QHs. Completes them with + * -ETIMEDOUT and frees the QTD. + */ +static void kill_urbs_in_qh_list(dwc_otg_hcd_t *hcd, struct list_head *qh_list) +{ + struct list_head *qh_item; + dwc_otg_qh_t *qh; + struct list_head *qtd_item; + dwc_otg_qtd_t *qtd; + unsigned long flags; + + SPIN_LOCK_IRQSAVE(&hcd->lock, flags); + list_for_each(qh_item, qh_list) { + qh = list_entry(qh_item, dwc_otg_qh_t, qh_list_entry); + for (qtd_item = qh->qtd_list.next; + qtd_item != &qh->qtd_list; + qtd_item = qh->qtd_list.next) { + qtd = list_entry(qtd_item, dwc_otg_qtd_t, qtd_list_entry); + if (qtd->urb != NULL) { + dwc_otg_hcd_complete_urb(hcd, qtd->urb, + -ETIMEDOUT); + } + dwc_otg_hcd_qtd_remove_and_free(hcd, qtd); + } + } + SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags); +} + +/** + * Responds with an error status of ETIMEDOUT to all URBs in the non-periodic + * and periodic schedules. The QTD associated with each URB is removed from + * the schedule and freed. This function may be called when a disconnect is + * detected or when the HCD is being stopped. + */ +static void kill_all_urbs(dwc_otg_hcd_t *hcd) +{ + kill_urbs_in_qh_list(hcd, &hcd->non_periodic_sched_inactive); + kill_urbs_in_qh_list(hcd, &hcd->non_periodic_sched_active); + kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_inactive); + kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_ready); + kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_assigned); + kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_queued); +} + +/** + * HCD Callback function for disconnect of the HCD. + * + * @param p void pointer to the <code>struct usb_hcd</code> + */ +static int32_t dwc_otg_hcd_disconnect_cb(void *p) +{ + gintsts_data_t intr; + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(p); + + //DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, p); + + /* + * Set status flags for the hub driver. + */ + dwc_otg_hcd->flags.b.port_connect_status_change = 1; + dwc_otg_hcd->flags.b.port_connect_status = 0; + + /* + * Shutdown any transfers in process by clearing the Tx FIFO Empty + * interrupt mask and status bits and disabling subsequent host + * channel interrupts. + */ + intr.d32 = 0; + intr.b.nptxfempty = 1; + intr.b.ptxfempty = 1; + intr.b.hcintr = 1; + dwc_modify_reg32(&dwc_otg_hcd->core_if->core_global_regs->gintmsk, intr.d32, 0); + dwc_modify_reg32(&dwc_otg_hcd->core_if->core_global_regs->gintsts, intr.d32, 0); + + del_timers(dwc_otg_hcd); + + /* + * Turn off the vbus power only if the core has transitioned to device + * mode. If still in host mode, need to keep power on to detect a + * reconnection. + */ + if (dwc_otg_is_device_mode(dwc_otg_hcd->core_if)) { + if (dwc_otg_hcd->core_if->op_state != A_SUSPEND) { + hprt0_data_t hprt0 = { .d32=0 }; + DWC_PRINT("Disconnect: PortPower off\n"); + hprt0.b.prtpwr = 0; + dwc_write_reg32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0.d32); + } + + dwc_otg_disable_host_interrupts(dwc_otg_hcd->core_if); + } + + /* Respond with an error status to all URBs in the schedule. */ + kill_all_urbs(dwc_otg_hcd); + + if (dwc_otg_is_host_mode(dwc_otg_hcd->core_if)) { + /* Clean up any host channels that were in use. */ + int num_channels; + int i; + dwc_hc_t *channel; + dwc_otg_hc_regs_t *hc_regs; + hcchar_data_t hcchar; + + num_channels = dwc_otg_hcd->core_if->core_params->host_channels; + + if (!dwc_otg_hcd->core_if->dma_enable) { + /* Flush out any channel requests in slave mode. */ + for (i = 0; i < num_channels; i++) { + channel = dwc_otg_hcd->hc_ptr_array[i]; + if (list_empty(&channel->hc_list_entry)) { + hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[i]; + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + if (hcchar.b.chen) { + hcchar.b.chen = 0; + hcchar.b.chdis = 1; + hcchar.b.epdir = 0; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + } + } + } + } + + for (i = 0; i < num_channels; i++) { + channel = dwc_otg_hcd->hc_ptr_array[i]; + if (list_empty(&channel->hc_list_entry)) { + hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[i]; + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + if (hcchar.b.chen) { + /* Halt the channel. */ + hcchar.b.chdis = 1; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + } + + dwc_otg_hc_cleanup(dwc_otg_hcd->core_if, channel); + list_add_tail(&channel->hc_list_entry, + &dwc_otg_hcd->free_hc_list); + } + } + } + + /* A disconnect will end the session so the B-Device is no + * longer a B-host. */ + ((struct usb_hcd *)p)->self.is_b_host = 0; + return 1; +} + +/** + * Connection timeout function. An OTG host is required to display a + * message if the device does not connect within 10 seconds. + */ +void dwc_otg_hcd_connect_timeout(unsigned long ptr) +{ + DWC_DEBUGPL(DBG_HCDV, "%s(%x)\n", __func__, (int)ptr); + DWC_PRINT("Connect Timeout\n"); + DWC_ERROR("Device Not Connected/Responding\n"); +} + +/** + * Start the connection timer. An OTG host is required to display a + * message if the device does not connect within 10 seconds. The + * timer is deleted if a port connect interrupt occurs before the + * timer expires. + */ +static void dwc_otg_hcd_start_connect_timer(dwc_otg_hcd_t *hcd) +{ + init_timer(&hcd->conn_timer); + hcd->conn_timer.function = dwc_otg_hcd_connect_timeout; + hcd->conn_timer.data = 0; + hcd->conn_timer.expires = jiffies + (HZ * 10); + add_timer(&hcd->conn_timer); +} + +/** + * HCD Callback function for disconnect of the HCD. + * + * @param p void pointer to the <code>struct usb_hcd</code> + */ +static int32_t dwc_otg_hcd_session_start_cb(void *p) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(p); + DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, p); + dwc_otg_hcd_start_connect_timer(dwc_otg_hcd); + return 1; +} + +/** + * HCD Callback structure for handling mode switching. + */ +static dwc_otg_cil_callbacks_t hcd_cil_callbacks = { + .start = dwc_otg_hcd_start_cb, + .stop = dwc_otg_hcd_stop_cb, + .disconnect = dwc_otg_hcd_disconnect_cb, + .session_start = dwc_otg_hcd_session_start_cb, + .p = 0, +}; + +/** + * Reset tasklet function + */ +static void reset_tasklet_func(unsigned long data) +{ + dwc_otg_hcd_t *dwc_otg_hcd = (dwc_otg_hcd_t *)data; + dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; + hprt0_data_t hprt0; + + DWC_DEBUGPL(DBG_HCDV, "USB RESET tasklet called\n"); + + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtrst = 1; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + mdelay(60); + + hprt0.b.prtrst = 0; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + dwc_otg_hcd->flags.b.port_reset_change = 1; +} + +static struct tasklet_struct reset_tasklet = { + .next = NULL, + .state = 0, + .count = ATOMIC_INIT(0), + .func = reset_tasklet_func, + .data = 0, +}; + +/** + * Initializes the HCD. This function allocates memory for and initializes the + * static parts of the usb_hcd and dwc_otg_hcd structures. It also registers the + * USB bus with the core and calls the hc_driver->start() function. It returns + * a negative error on failure. + */ +int dwc_otg_hcd_init(struct platform_device *pdev) +{ + struct usb_hcd *hcd = NULL; + dwc_otg_hcd_t *dwc_otg_hcd = NULL; + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); + + int num_channels; + int i; + dwc_hc_t *channel; + + int retval = 0; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD INIT\n"); + + /* Set device flags indicating whether the HCD supports DMA. */ + if (otg_dev->core_if->dma_enable) { + DWC_PRINT("Using DMA mode\n"); + + if (otg_dev->core_if->dma_desc_enable) { + DWC_PRINT("Device using Descriptor DMA mode\n"); + } else { + DWC_PRINT("Device using Buffer DMA mode\n"); + } + } + /* + * Allocate memory for the base HCD plus the DWC OTG HCD. + * Initialize the base HCD. + */ + + hcd = usb_create_hcd(&dwc_otg_hc_driver, &pdev->dev, "gadget"); + if (!hcd) { + retval = -ENOMEM; + goto error1; + } + + hcd->regs = otg_dev->base; + hcd->self.otg_port = 1; + + /* Integrate TT in root hub, by default this is disbled. */ + hcd->has_tt = 1; + + /* Initialize the DWC OTG HCD. */ + dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + dwc_otg_hcd->core_if = otg_dev->core_if; + otg_dev->hcd = dwc_otg_hcd; + init_hcd_usecs(dwc_otg_hcd); + + /* */ + spin_lock_init(&dwc_otg_hcd->lock); + + /* Register the HCD CIL Callbacks */ + dwc_otg_cil_register_hcd_callbacks(otg_dev->core_if, + &hcd_cil_callbacks, hcd); + + /* Initialize the non-periodic schedule. */ + INIT_LIST_HEAD(&dwc_otg_hcd->non_periodic_sched_inactive); + INIT_LIST_HEAD(&dwc_otg_hcd->non_periodic_sched_active); + + /* Initialize the periodic schedule. */ + INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_inactive); + INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_ready); + INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_assigned); + INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_queued); + + /* + * Create a host channel descriptor for each host channel implemented + * in the controller. Initialize the channel descriptor array. + */ + INIT_LIST_HEAD(&dwc_otg_hcd->free_hc_list); + num_channels = dwc_otg_hcd->core_if->core_params->host_channels; + memset(dwc_otg_hcd->hc_ptr_array, 0, sizeof(dwc_otg_hcd->hc_ptr_array)); + for (i = 0; i < num_channels; i++) { + channel = kmalloc(sizeof(dwc_hc_t), GFP_KERNEL); + if (channel == NULL) { + retval = -ENOMEM; + DWC_ERROR("%s: host channel allocation failed\n", __func__); + goto error2; + } + memset(channel, 0, sizeof(dwc_hc_t)); + channel->hc_num = i; + dwc_otg_hcd->hc_ptr_array[i] = channel; +#ifdef DEBUG + init_timer(&dwc_otg_hcd->core_if->hc_xfer_timer[i]); +#endif + DWC_DEBUGPL(DBG_HCDV, "HCD Added channel #%d, hc=%p\n", i, channel); + } + + /* Initialize the Connection timeout timer. */ + init_timer(&dwc_otg_hcd->conn_timer); + + /* Initialize reset tasklet. */ + reset_tasklet.data = (unsigned long) dwc_otg_hcd; + dwc_otg_hcd->reset_tasklet = &reset_tasklet; + + /* + * Finish generic HCD initialization and start the HCD. This function + * allocates the DMA buffer pool, registers the USB bus, requests the + * IRQ line, and calls dwc_otg_hcd_start method. + */ + retval = usb_add_hcd(hcd, otg_dev->irq, IRQF_SHARED); + if (retval < 0) { + goto error2; + } + + /* + * Allocate space for storing data on status transactions. Normally no + * data is sent, but this space acts as a bit bucket. This must be + * done after usb_add_hcd since that function allocates the DMA buffer + * pool. + */ + if (otg_dev->core_if->dma_enable) { + dwc_otg_hcd->status_buf = + dma_alloc_coherent(&pdev->dev, + DWC_OTG_HCD_STATUS_BUF_SIZE, + &dwc_otg_hcd->status_buf_dma, + GFP_KERNEL | GFP_DMA); + } else { + dwc_otg_hcd->status_buf = kmalloc(DWC_OTG_HCD_STATUS_BUF_SIZE, + GFP_KERNEL); + } + if (!dwc_otg_hcd->status_buf) { + retval = -ENOMEM; + DWC_ERROR("%s: status_buf allocation failed\n", __func__); + goto error3; + } + + dwc_otg_hcd->otg_dev = otg_dev; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Initialized HCD, usbbus=%d\n", + hcd->self.busnum); + return 0; + + /* Error conditions */ + error3: + usb_remove_hcd(hcd); + error2: + dwc_otg_hcd_free(hcd); + usb_put_hcd(hcd); + error1: + return retval; +} + +/** + * Removes the HCD. + * Frees memory and resources associated with the HCD and deregisters the bus. + */ +void dwc_otg_hcd_remove(struct platform_device *pdev) +{ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); + dwc_otg_hcd_t *dwc_otg_hcd; + struct usb_hcd *hcd; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD REMOVE\n"); + + if (!otg_dev) { + DWC_DEBUGPL(DBG_ANY, "%s: otg_dev NULL!\n", __func__); + return; + } + + dwc_otg_hcd = otg_dev->hcd; + + if (!dwc_otg_hcd) { + DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->hcd NULL!\n", __func__); + return; + } + + hcd = dwc_otg_hcd_to_hcd(dwc_otg_hcd); + + if (!hcd) { + DWC_DEBUGPL(DBG_ANY, "%s: dwc_otg_hcd_to_hcd(dwc_otg_hcd) NULL!\n", __func__); + return; + } + + /* Turn off all interrupts */ + dwc_write_reg32(&dwc_otg_hcd->core_if->core_global_regs->gintmsk, 0); + dwc_modify_reg32(&dwc_otg_hcd->core_if->core_global_regs->gahbcfg, 1, 0); + + usb_remove_hcd(hcd); + dwc_otg_hcd_free(hcd); + usb_put_hcd(hcd); +} + +/* ========================================================================= + * Linux HC Driver Functions + * ========================================================================= */ + +/** + * Initializes dynamic portions of the DWC_otg HCD state. + */ +static void hcd_reinit(dwc_otg_hcd_t *hcd) +{ + struct list_head *item; + int num_channels; + int i; + dwc_hc_t *channel; + + hcd->flags.d32 = 0; + + hcd->non_periodic_qh_ptr = &hcd->non_periodic_sched_active; + hcd->non_periodic_channels = 0; + hcd->periodic_channels = 0; + + /* + * Put all channels in the free channel list and clean up channel + * states. + */ + item = hcd->free_hc_list.next; + while (item != &hcd->free_hc_list) { + list_del(item); + item = hcd->free_hc_list.next; + } + num_channels = hcd->core_if->core_params->host_channels; + for (i = 0; i < num_channels; i++) { + channel = hcd->hc_ptr_array[i]; + list_add_tail(&channel->hc_list_entry, &hcd->free_hc_list); + dwc_otg_hc_cleanup(hcd->core_if, channel); + } + + /* Initialize the DWC core for host mode operation. */ + dwc_otg_core_host_init(hcd->core_if); +} + +/** Initializes the DWC_otg controller and its root hub and prepares it for host + * mode operation. Activates the root port. Returns 0 on success and a negative + * error code on failure. */ +int dwc_otg_hcd_start(struct usb_hcd *hcd) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; + struct usb_bus *bus; + + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD START\n"); + + bus = hcd_to_bus(hcd); + + /* Initialize the bus state. If the core is in Device Mode + * HALT the USB bus and return. */ + if (dwc_otg_is_device_mode(core_if)) { + hcd->state = HC_STATE_RUNNING; + return 0; + } + hcd->state = HC_STATE_RUNNING; + + /* Initialize and connect root hub if one is not already attached */ + if (bus->root_hub) { + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Has Root Hub\n"); + /* Inform the HUB driver to resume. */ + usb_hcd_resume_root_hub(hcd); + } + else { + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Does Not Have Root Hub\n"); + } + + hcd_reinit(dwc_otg_hcd); + + return 0; +} + +static void qh_list_free(dwc_otg_hcd_t *hcd, struct list_head *qh_list) +{ + struct list_head *item; + dwc_otg_qh_t *qh; + unsigned long flags; + + if (!qh_list->next) { + /* The list hasn't been initialized yet. */ + return; + } + + /* Ensure there are no QTDs or URBs left. */ + kill_urbs_in_qh_list(hcd, qh_list); + + SPIN_LOCK_IRQSAVE(&hcd->lock, flags); + for (item = qh_list->next; item != qh_list; item = qh_list->next) { + qh = list_entry(item, dwc_otg_qh_t, qh_list_entry); + dwc_otg_hcd_qh_remove_and_free(hcd, qh); + } + SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags); +} + +/** + * Halts the DWC_otg host mode operations in a clean manner. USB transfers are + * stopped. + */ +void dwc_otg_hcd_stop(struct usb_hcd *hcd) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + hprt0_data_t hprt0 = { .d32=0 }; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD STOP\n"); + + /* Turn off all host-specific interrupts. */ + dwc_otg_disable_host_interrupts(dwc_otg_hcd->core_if); + + /* + * The root hub should be disconnected before this function is called. + * The disconnect will clear the QTD lists (via ..._hcd_urb_dequeue) + * and the QH lists (via ..._hcd_endpoint_disable). + */ + + /* Turn off the vbus power */ + DWC_PRINT("PortPower off\n"); + hprt0.b.prtpwr = 0; + dwc_write_reg32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0.d32); +} + +/** Returns the current frame number. */ +int dwc_otg_hcd_get_frame_number(struct usb_hcd *hcd) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + hfnum_data_t hfnum; + + hfnum.d32 = dwc_read_reg32(&dwc_otg_hcd->core_if-> + host_if->host_global_regs->hfnum); + +#ifdef DEBUG_SOF + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD GET FRAME NUMBER %d\n", hfnum.b.frnum); +#endif + return hfnum.b.frnum; +} + +/** + * Frees secondary storage associated with the dwc_otg_hcd structure contained + * in the struct usb_hcd field. + */ +void dwc_otg_hcd_free(struct usb_hcd *hcd) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + int i; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD FREE\n"); + + del_timers(dwc_otg_hcd); + + /* Free memory for QH/QTD lists */ + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_inactive); + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_active); + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_inactive); + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_ready); + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_assigned); + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_queued); + + /* Free memory for the host channels. */ + for (i = 0; i < MAX_EPS_CHANNELS; i++) { + dwc_hc_t *hc = dwc_otg_hcd->hc_ptr_array[i]; + if (hc != NULL) { + DWC_DEBUGPL(DBG_HCDV, "HCD Free channel #%i, hc=%p\n", i, hc); + kfree(hc); + } + } + + if (dwc_otg_hcd->core_if->dma_enable) { + if (dwc_otg_hcd->status_buf_dma) { + dma_free_coherent(hcd->self.controller, + DWC_OTG_HCD_STATUS_BUF_SIZE, + dwc_otg_hcd->status_buf, + dwc_otg_hcd->status_buf_dma); + } + } else if (dwc_otg_hcd->status_buf != NULL) { + kfree(dwc_otg_hcd->status_buf); + } +} + +#ifdef DEBUG +static void dump_urb_info(struct urb *urb, char* fn_name) +{ + DWC_PRINT("%s, urb %p\n", fn_name, urb); + DWC_PRINT(" Device address: %d\n", usb_pipedevice(urb->pipe)); + DWC_PRINT(" Endpoint: %d, %s\n", usb_pipeendpoint(urb->pipe), + (usb_pipein(urb->pipe) ? "IN" : "OUT")); + DWC_PRINT(" Endpoint type: %s\n", + ({char *pipetype; + switch (usb_pipetype(urb->pipe)) { + case PIPE_CONTROL: pipetype = "CONTROL"; break; + case PIPE_BULK: pipetype = "BULK"; break; + case PIPE_INTERRUPT: pipetype = "INTERRUPT"; break; + case PIPE_ISOCHRONOUS: pipetype = "ISOCHRONOUS"; break; + default: pipetype = "UNKNOWN"; break; + }; pipetype;})); + DWC_PRINT(" Speed: %s\n", + ({char *speed; + switch (urb->dev->speed) { + case USB_SPEED_HIGH: speed = "HIGH"; break; + case USB_SPEED_FULL: speed = "FULL"; break; + case USB_SPEED_LOW: speed = "LOW"; break; + default: speed = "UNKNOWN"; break; + }; speed;})); + DWC_PRINT(" Max packet size: %d\n", + usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))); + DWC_PRINT(" Data buffer length: %d\n", urb->transfer_buffer_length); + DWC_PRINT(" Transfer buffer: %p, Transfer DMA: %p\n", + urb->transfer_buffer, (void *)urb->transfer_dma); + DWC_PRINT(" Setup buffer: %p, Setup DMA: %p\n", + urb->setup_packet, (void *)urb->setup_dma); + DWC_PRINT(" Interval: %d\n", urb->interval); + if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { + int i; + for (i = 0; i < urb->number_of_packets; i++) { + DWC_PRINT(" ISO Desc %d:\n", i); + DWC_PRINT(" offset: %d, length %d\n", + urb->iso_frame_desc[i].offset, + urb->iso_frame_desc[i].length); + } + } +} + +static void dump_channel_info(dwc_otg_hcd_t *hcd, + dwc_otg_qh_t *qh) +{ + if (qh->channel != NULL) { + dwc_hc_t *hc = qh->channel; + struct list_head *item; + dwc_otg_qh_t *qh_item; + int num_channels = hcd->core_if->core_params->host_channels; + int i; + + dwc_otg_hc_regs_t *hc_regs; + hcchar_data_t hcchar; + hcsplt_data_t hcsplt; + hctsiz_data_t hctsiz; + uint32_t hcdma; + + hc_regs = hcd->core_if->host_if->hc_regs[hc->hc_num]; + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hcsplt.d32 = dwc_read_reg32(&hc_regs->hcsplt); + hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); + hcdma = dwc_read_reg32(&hc_regs->hcdma); + + DWC_PRINT(" Assigned to channel %p:\n", hc); + DWC_PRINT(" hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32, hcsplt.d32); + DWC_PRINT(" hctsiz 0x%08x, hcdma 0x%08x\n", hctsiz.d32, hcdma); + DWC_PRINT(" dev_addr: %d, ep_num: %d, ep_is_in: %d\n", + hc->dev_addr, hc->ep_num, hc->ep_is_in); + DWC_PRINT(" ep_type: %d\n", hc->ep_type); + DWC_PRINT(" max_packet: %d\n", hc->max_packet); + DWC_PRINT(" data_pid_start: %d\n", hc->data_pid_start); + DWC_PRINT(" xfer_started: %d\n", hc->xfer_started); + DWC_PRINT(" halt_status: %d\n", hc->halt_status); + DWC_PRINT(" xfer_buff: %p\n", hc->xfer_buff); + DWC_PRINT(" xfer_len: %d\n", hc->xfer_len); + DWC_PRINT(" qh: %p\n", hc->qh); + DWC_PRINT(" NP inactive sched:\n"); + list_for_each(item, &hcd->non_periodic_sched_inactive) { + qh_item = list_entry(item, dwc_otg_qh_t, qh_list_entry); + DWC_PRINT(" %p\n", qh_item); + } + DWC_PRINT(" NP active sched:\n"); + list_for_each(item, &hcd->non_periodic_sched_active) { + qh_item = list_entry(item, dwc_otg_qh_t, qh_list_entry); + DWC_PRINT(" %p\n", qh_item); + } + DWC_PRINT(" Channels: \n"); + for (i = 0; i < num_channels; i++) { + dwc_hc_t *hc = hcd->hc_ptr_array[i]; + DWC_PRINT(" %2d: %p\n", i, hc); + } + } +} +#endif + + +//OTG host require the DMA addr is DWORD-aligned, +//patch it if the buffer is not DWORD-aligned +inline +void hcd_check_and_patch_dma_addr(struct urb *urb){ + + if((!urb->transfer_buffer)||!urb->transfer_dma||urb->transfer_dma==0xffffffff) + return; + + if(((u32)urb->transfer_buffer)& 0x3){ + /* + printk("%s: " + "urb(%.8x) " + "transfer_buffer=%.8x, " + "transfer_dma=%.8x, " + "transfer_buffer_length=%d, " + "actual_length=%d(%x), " + "\n", + ((urb->transfer_flags & URB_DIR_MASK)==URB_DIR_OUT)?"OUT":"IN", + urb, + urb->transfer_buffer, + urb->transfer_dma, + urb->transfer_buffer_length, + urb->actual_length,urb->actual_length + ); + */ + if(!urb->aligned_transfer_buffer||urb->aligned_transfer_buffer_length<urb->transfer_buffer_length){ + urb->aligned_transfer_buffer_length=urb->transfer_buffer_length; + if(urb->aligned_transfer_buffer) { + kfree(urb->aligned_transfer_buffer); + } + urb->aligned_transfer_buffer=kmalloc(urb->aligned_transfer_buffer_length,GFP_KERNEL|GFP_DMA|GFP_ATOMIC); + urb->aligned_transfer_dma=dma_map_single(NULL,(void *)(urb->aligned_transfer_buffer),(urb->aligned_transfer_buffer_length),DMA_FROM_DEVICE); + if(!urb->aligned_transfer_buffer){ + DWC_ERROR("Cannot alloc required buffer!!\n"); + BUG(); + } + //printk(" new allocated aligned_buf=%.8x aligned_buf_len=%d\n", (u32)urb->aligned_transfer_buffer, urb->aligned_transfer_buffer_length); + } + urb->transfer_dma=urb->aligned_transfer_dma; + if((urb->transfer_flags & URB_DIR_MASK)==URB_DIR_OUT) { + memcpy(urb->aligned_transfer_buffer,urb->transfer_buffer,urb->transfer_buffer_length); + dma_sync_single_for_device(NULL,urb->transfer_dma,urb->transfer_buffer_length,DMA_TO_DEVICE); + } + } +} + + + +/** Starts processing a USB transfer request specified by a USB Request Block + * (URB). mem_flags indicates the type of memory allocation to use while + * processing this URB. */ +int dwc_otg_hcd_urb_enqueue(struct usb_hcd *hcd, +// struct usb_host_endpoint *ep, + struct urb *urb, + gfp_t mem_flags + ) +{ + int retval = 0; + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + dwc_otg_qtd_t *qtd; + +#ifdef DEBUG + if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { + dump_urb_info(urb, "dwc_otg_hcd_urb_enqueue"); + } +#endif + if (!dwc_otg_hcd->flags.b.port_connect_status) { + /* No longer connected. */ + return -ENODEV; + } + + hcd_check_and_patch_dma_addr(urb); + qtd = dwc_otg_hcd_qtd_create(urb); + if (qtd == NULL) { + DWC_ERROR("DWC OTG HCD URB Enqueue failed creating QTD\n"); + return -ENOMEM; + } + + retval = dwc_otg_hcd_qtd_add(qtd, dwc_otg_hcd); + if (retval < 0) { + DWC_ERROR("DWC OTG HCD URB Enqueue failed adding QTD. " + "Error status %d\n", retval); + dwc_otg_hcd_qtd_free(qtd); + } + + return retval; +} + +/** Aborts/cancels a USB transfer request. Always returns 0 to indicate + * success. */ +int dwc_otg_hcd_urb_dequeue(struct usb_hcd *hcd, + struct urb *urb, int status) +{ + unsigned long flags; + dwc_otg_hcd_t *dwc_otg_hcd; + dwc_otg_qtd_t *urb_qtd; + dwc_otg_qh_t *qh; + struct usb_host_endpoint *ep = dwc_urb_to_endpoint(urb); + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue\n"); + + dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + + SPIN_LOCK_IRQSAVE(&dwc_otg_hcd->lock, flags); + + urb_qtd = (dwc_otg_qtd_t *)urb->hcpriv; + qh = (dwc_otg_qh_t *)ep->hcpriv; + + if (urb_qtd == NULL) { + SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); + return 0; + } +#ifdef DEBUG + if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { + dump_urb_info(urb, "dwc_otg_hcd_urb_dequeue"); + if (urb_qtd == qh->qtd_in_process) { + dump_channel_info(dwc_otg_hcd, qh); + } + } +#endif + + if (urb_qtd == qh->qtd_in_process) { + /* The QTD is in process (it has been assigned to a channel). */ + + if (dwc_otg_hcd->flags.b.port_connect_status) { + /* + * If still connected (i.e. in host mode), halt the + * channel so it can be used for other transfers. If + * no longer connected, the host registers can't be + * written to halt the channel since the core is in + * device mode. + */ + dwc_otg_hc_halt(dwc_otg_hcd->core_if, qh->channel, + DWC_OTG_HC_XFER_URB_DEQUEUE); + } + } + + /* + * Free the QTD and clean up the associated QH. Leave the QH in the + * schedule if it has any remaining QTDs. + */ + dwc_otg_hcd_qtd_remove_and_free(dwc_otg_hcd, urb_qtd); + if (urb_qtd == qh->qtd_in_process) { + /* Note that dwc_otg_hcd_qh_deactivate() locks the spin_lock again */ + SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); + dwc_otg_hcd_qh_deactivate(dwc_otg_hcd, qh, 0); + qh->channel = NULL; + qh->qtd_in_process = NULL; + } else { + if (list_empty(&qh->qtd_list)) + dwc_otg_hcd_qh_remove(dwc_otg_hcd, qh); + SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); + } + + urb->hcpriv = NULL; + + /* Higher layer software sets URB status. */ + usb_hcd_giveback_urb(hcd, urb, status); + if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { + DWC_PRINT("Called usb_hcd_giveback_urb()\n"); + DWC_PRINT(" urb->status = %d\n", urb->status); + } + + return 0; +} + +/** Frees resources in the DWC_otg controller related to a given endpoint. Also + * clears state in the HCD related to the endpoint. Any URBs for the endpoint + * must already be dequeued. */ +void dwc_otg_hcd_endpoint_disable(struct usb_hcd *hcd, + struct usb_host_endpoint *ep) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + dwc_otg_qh_t *qh; + + unsigned long flags; + int retry = 0; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD EP DISABLE: _bEndpointAddress=0x%02x, " + "endpoint=%d\n", ep->desc.bEndpointAddress, + dwc_ep_addr_to_endpoint(ep->desc.bEndpointAddress)); + +rescan: + SPIN_LOCK_IRQSAVE(&dwc_otg_hcd->lock, flags); + qh = (dwc_otg_qh_t *)(ep->hcpriv); + if (!qh) + goto done; + + /** Check that the QTD list is really empty */ + if (!list_empty(&qh->qtd_list)) { + if (retry++ < 250) { + SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); + schedule_timeout_uninterruptible(1); + goto rescan; + } + + DWC_WARN("DWC OTG HCD EP DISABLE:" + " QTD List for this endpoint is not empty\n"); + } + + dwc_otg_hcd_qh_remove_and_free(dwc_otg_hcd, qh); + ep->hcpriv = NULL; +done: + SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); +} + +/** Handles host mode interrupts for the DWC_otg controller. Returns IRQ_NONE if + * there was no interrupt to handle. Returns IRQ_HANDLED if there was a valid + * interrupt. + * + * This function is called by the USB core when an interrupt occurs */ +irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *hcd) +{ + int retVal = 0; + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + retVal = dwc_otg_hcd_handle_intr(dwc_otg_hcd); + if (dwc_otg_hcd->flags.b.port_connect_status_change == 1) + usb_hcd_poll_rh_status(hcd); + return IRQ_RETVAL(retVal); +} + +/** Creates Status Change bitmap for the root hub and root port. The bitmap is + * returned in buf. Bit 0 is the status change indicator for the root hub. Bit 1 + * is the status change indicator for the single root port. Returns 1 if either + * change indicator is 1, otherwise returns 0. */ +int dwc_otg_hcd_hub_status_data(struct usb_hcd *hcd, char *buf) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + + buf[0] = 0; + buf[0] |= (dwc_otg_hcd->flags.b.port_connect_status_change || + dwc_otg_hcd->flags.b.port_reset_change || + dwc_otg_hcd->flags.b.port_enable_change || + dwc_otg_hcd->flags.b.port_suspend_change || + dwc_otg_hcd->flags.b.port_over_current_change) << 1; + +#ifdef DEBUG + if (buf[0]) { + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB STATUS DATA:" + " Root port status changed\n"); + DWC_DEBUGPL(DBG_HCDV, " port_connect_status_change: %d\n", + dwc_otg_hcd->flags.b.port_connect_status_change); + DWC_DEBUGPL(DBG_HCDV, " port_reset_change: %d\n", + dwc_otg_hcd->flags.b.port_reset_change); + DWC_DEBUGPL(DBG_HCDV, " port_enable_change: %d\n", + dwc_otg_hcd->flags.b.port_enable_change); + DWC_DEBUGPL(DBG_HCDV, " port_suspend_change: %d\n", + dwc_otg_hcd->flags.b.port_suspend_change); + DWC_DEBUGPL(DBG_HCDV, " port_over_current_change: %d\n", + dwc_otg_hcd->flags.b.port_over_current_change); + } +#endif + return (buf[0] != 0); +} + +#ifdef DWC_HS_ELECT_TST +/* + * Quick and dirty hack to implement the HS Electrical Test + * SINGLE_STEP_GET_DEVICE_DESCRIPTOR feature. + * + * This code was copied from our userspace app "hset". It sends a + * Get Device Descriptor control sequence in two parts, first the + * Setup packet by itself, followed some time later by the In and + * Ack packets. Rather than trying to figure out how to add this + * functionality to the normal driver code, we just hijack the + * hardware, using these two function to drive the hardware + * directly. + */ + +dwc_otg_core_global_regs_t *global_regs; +dwc_otg_host_global_regs_t *hc_global_regs; +dwc_otg_hc_regs_t *hc_regs; +uint32_t *data_fifo; + +static void do_setup(void) +{ + gintsts_data_t gintsts; + hctsiz_data_t hctsiz; + hcchar_data_t hcchar; + haint_data_t haint; + hcint_data_t hcint; + + /* Enable HAINTs */ + dwc_write_reg32(&hc_global_regs->haintmsk, 0x0001); + + /* Enable HCINTs */ + dwc_write_reg32(&hc_regs->hcintmsk, 0x04a3); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); + + /* Read HAINT */ + haint.d32 = dwc_read_reg32(&hc_global_regs->haint); + //fprintf(stderr, "HAINT: %08x\n", haint.d32); + + /* Read HCINT */ + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + //fprintf(stderr, "HCINT: %08x\n", hcint.d32); + + /* Read HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); + + /* Clear HCINT */ + dwc_write_reg32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + dwc_write_reg32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); + + /* + * Send Setup packet (Get Device Descriptor) + */ + + /* Make sure channel is disabled */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + if (hcchar.b.chen) { + //fprintf(stderr, "Channel already enabled 1, HCCHAR = %08x\n", hcchar.d32); + hcchar.b.chdis = 1; +// hcchar.b.chen = 1; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + //sleep(1); + mdelay(1000); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); + + /* Read HAINT */ + haint.d32 = dwc_read_reg32(&hc_global_regs->haint); + //fprintf(stderr, "HAINT: %08x\n", haint.d32); + + /* Read HCINT */ + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + //fprintf(stderr, "HCINT: %08x\n", hcint.d32); + + /* Read HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); + + /* Clear HCINT */ + dwc_write_reg32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + dwc_write_reg32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //if (hcchar.b.chen) { + // fprintf(stderr, "** Channel _still_ enabled 1, HCCHAR = %08x **\n", hcchar.d32); + //} + } + + /* Set HCTSIZ */ + hctsiz.d32 = 0; + hctsiz.b.xfersize = 8; + hctsiz.b.pktcnt = 1; + hctsiz.b.pid = DWC_OTG_HC_PID_SETUP; + dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); + + /* Set HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL; + hcchar.b.epdir = 0; + hcchar.b.epnum = 0; + hcchar.b.mps = 8; + hcchar.b.chen = 1; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + + /* Fill FIFO with Setup data for Get Device Descriptor */ + data_fifo = (uint32_t *)((char *)global_regs + 0x1000); + dwc_write_reg32(data_fifo++, 0x01000680); + dwc_write_reg32(data_fifo++, 0x00080000); + + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "Waiting for HCINTR intr 1, GINTSTS = %08x\n", gintsts.d32); + + /* Wait for host channel interrupt */ + do { + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + } while (gintsts.b.hcintr == 0); + + //fprintf(stderr, "Got HCINTR intr 1, GINTSTS = %08x\n", gintsts.d32); + + /* Disable HCINTs */ + dwc_write_reg32(&hc_regs->hcintmsk, 0x0000); + + /* Disable HAINTs */ + dwc_write_reg32(&hc_global_regs->haintmsk, 0x0000); + + /* Read HAINT */ + haint.d32 = dwc_read_reg32(&hc_global_regs->haint); + //fprintf(stderr, "HAINT: %08x\n", haint.d32); + + /* Read HCINT */ + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + //fprintf(stderr, "HCINT: %08x\n", hcint.d32); + + /* Read HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); + + /* Clear HCINT */ + dwc_write_reg32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + dwc_write_reg32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); +} + +static void do_in_ack(void) +{ + gintsts_data_t gintsts; + hctsiz_data_t hctsiz; + hcchar_data_t hcchar; + haint_data_t haint; + hcint_data_t hcint; + host_grxsts_data_t grxsts; + + /* Enable HAINTs */ + dwc_write_reg32(&hc_global_regs->haintmsk, 0x0001); + + /* Enable HCINTs */ + dwc_write_reg32(&hc_regs->hcintmsk, 0x04a3); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); + + /* Read HAINT */ + haint.d32 = dwc_read_reg32(&hc_global_regs->haint); + //fprintf(stderr, "HAINT: %08x\n", haint.d32); + + /* Read HCINT */ + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + //fprintf(stderr, "HCINT: %08x\n", hcint.d32); + + /* Read HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); + + /* Clear HCINT */ + dwc_write_reg32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + dwc_write_reg32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); + + /* + * Receive Control In packet + */ + + /* Make sure channel is disabled */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + if (hcchar.b.chen) { + //fprintf(stderr, "Channel already enabled 2, HCCHAR = %08x\n", hcchar.d32); + hcchar.b.chdis = 1; + hcchar.b.chen = 1; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + //sleep(1); + mdelay(1000); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); + + /* Read HAINT */ + haint.d32 = dwc_read_reg32(&hc_global_regs->haint); + //fprintf(stderr, "HAINT: %08x\n", haint.d32); + + /* Read HCINT */ + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + //fprintf(stderr, "HCINT: %08x\n", hcint.d32); + + /* Read HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); + + /* Clear HCINT */ + dwc_write_reg32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + dwc_write_reg32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //if (hcchar.b.chen) { + // fprintf(stderr, "** Channel _still_ enabled 2, HCCHAR = %08x **\n", hcchar.d32); + //} + } + + /* Set HCTSIZ */ + hctsiz.d32 = 0; + hctsiz.b.xfersize = 8; + hctsiz.b.pktcnt = 1; + hctsiz.b.pid = DWC_OTG_HC_PID_DATA1; + dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); + + /* Set HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL; + hcchar.b.epdir = 1; + hcchar.b.epnum = 0; + hcchar.b.mps = 8; + hcchar.b.chen = 1; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "Waiting for RXSTSQLVL intr 1, GINTSTS = %08x\n", gintsts.d32); + + /* Wait for receive status queue interrupt */ + do { + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + } while (gintsts.b.rxstsqlvl == 0); + + //fprintf(stderr, "Got RXSTSQLVL intr 1, GINTSTS = %08x\n", gintsts.d32); + + /* Read RXSTS */ + grxsts.d32 = dwc_read_reg32(&global_regs->grxstsp); + //fprintf(stderr, "GRXSTS: %08x\n", grxsts.d32); + + /* Clear RXSTSQLVL in GINTSTS */ + gintsts.d32 = 0; + gintsts.b.rxstsqlvl = 1; + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + switch (grxsts.b.pktsts) { + case DWC_GRXSTS_PKTSTS_IN: + /* Read the data into the host buffer */ + if (grxsts.b.bcnt > 0) { + int i; + int word_count = (grxsts.b.bcnt + 3) / 4; + + data_fifo = (uint32_t *)((char *)global_regs + 0x1000); + + for (i = 0; i < word_count; i++) { + (void)dwc_read_reg32(data_fifo++); + } + } + + //fprintf(stderr, "Received %u bytes\n", (unsigned)grxsts.b.bcnt); + break; + + default: + //fprintf(stderr, "** Unexpected GRXSTS packet status 1 **\n"); + break; + } + + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "Waiting for RXSTSQLVL intr 2, GINTSTS = %08x\n", gintsts.d32); + + /* Wait for receive status queue interrupt */ + do { + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + } while (gintsts.b.rxstsqlvl == 0); + + //fprintf(stderr, "Got RXSTSQLVL intr 2, GINTSTS = %08x\n", gintsts.d32); + + /* Read RXSTS */ + grxsts.d32 = dwc_read_reg32(&global_regs->grxstsp); + //fprintf(stderr, "GRXSTS: %08x\n", grxsts.d32); + + /* Clear RXSTSQLVL in GINTSTS */ + gintsts.d32 = 0; + gintsts.b.rxstsqlvl = 1; + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + switch (grxsts.b.pktsts) { + case DWC_GRXSTS_PKTSTS_IN_XFER_COMP: + break; + + default: + //fprintf(stderr, "** Unexpected GRXSTS packet status 2 **\n"); + break; + } + + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "Waiting for HCINTR intr 2, GINTSTS = %08x\n", gintsts.d32); + + /* Wait for host channel interrupt */ + do { + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + } while (gintsts.b.hcintr == 0); + + //fprintf(stderr, "Got HCINTR intr 2, GINTSTS = %08x\n", gintsts.d32); + + /* Read HAINT */ + haint.d32 = dwc_read_reg32(&hc_global_regs->haint); + //fprintf(stderr, "HAINT: %08x\n", haint.d32); + + /* Read HCINT */ + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + //fprintf(stderr, "HCINT: %08x\n", hcint.d32); + + /* Read HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); + + /* Clear HCINT */ + dwc_write_reg32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + dwc_write_reg32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); + +// usleep(100000); +// mdelay(100); + mdelay(1); + + /* + * Send handshake packet + */ + + /* Read HAINT */ + haint.d32 = dwc_read_reg32(&hc_global_regs->haint); + //fprintf(stderr, "HAINT: %08x\n", haint.d32); + + /* Read HCINT */ + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + //fprintf(stderr, "HCINT: %08x\n", hcint.d32); + + /* Read HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); + + /* Clear HCINT */ + dwc_write_reg32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + dwc_write_reg32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); + + /* Make sure channel is disabled */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + if (hcchar.b.chen) { + //fprintf(stderr, "Channel already enabled 3, HCCHAR = %08x\n", hcchar.d32); + hcchar.b.chdis = 1; + hcchar.b.chen = 1; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + //sleep(1); + mdelay(1000); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); + + /* Read HAINT */ + haint.d32 = dwc_read_reg32(&hc_global_regs->haint); + //fprintf(stderr, "HAINT: %08x\n", haint.d32); + + /* Read HCINT */ + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + //fprintf(stderr, "HCINT: %08x\n", hcint.d32); + + /* Read HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); + + /* Clear HCINT */ + dwc_write_reg32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + dwc_write_reg32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //if (hcchar.b.chen) { + // fprintf(stderr, "** Channel _still_ enabled 3, HCCHAR = %08x **\n", hcchar.d32); + //} + } + + /* Set HCTSIZ */ + hctsiz.d32 = 0; + hctsiz.b.xfersize = 0; + hctsiz.b.pktcnt = 1; + hctsiz.b.pid = DWC_OTG_HC_PID_DATA1; + dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); + + /* Set HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL; + hcchar.b.epdir = 0; + hcchar.b.epnum = 0; + hcchar.b.mps = 8; + hcchar.b.chen = 1; + dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); + + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "Waiting for HCINTR intr 3, GINTSTS = %08x\n", gintsts.d32); + + /* Wait for host channel interrupt */ + do { + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + } while (gintsts.b.hcintr == 0); + + //fprintf(stderr, "Got HCINTR intr 3, GINTSTS = %08x\n", gintsts.d32); + + /* Disable HCINTs */ + dwc_write_reg32(&hc_regs->hcintmsk, 0x0000); + + /* Disable HAINTs */ + dwc_write_reg32(&hc_global_regs->haintmsk, 0x0000); + + /* Read HAINT */ + haint.d32 = dwc_read_reg32(&hc_global_regs->haint); + //fprintf(stderr, "HAINT: %08x\n", haint.d32); + + /* Read HCINT */ + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + //fprintf(stderr, "HCINT: %08x\n", hcint.d32); + + /* Read HCCHAR */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); + + /* Clear HCINT */ + dwc_write_reg32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + dwc_write_reg32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + dwc_write_reg32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); + //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); +} +#endif /* DWC_HS_ELECT_TST */ + +/** Handles hub class-specific requests. */ +int dwc_otg_hcd_hub_control(struct usb_hcd *hcd, + u16 typeReq, + u16 wValue, + u16 wIndex, + char *buf, + u16 wLength) +{ + int retval = 0; + + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + dwc_otg_core_if_t *core_if = hcd_to_dwc_otg_hcd(hcd)->core_if; + struct usb_hub_descriptor *desc; + hprt0_data_t hprt0 = {.d32 = 0}; + + uint32_t port_status; + + switch (typeReq) { + case ClearHubFeature: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearHubFeature 0x%x\n", wValue); + switch (wValue) { + case C_HUB_LOCAL_POWER: + case C_HUB_OVER_CURRENT: + /* Nothing required here */ + break; + default: + retval = -EINVAL; + DWC_ERROR("DWC OTG HCD - " + "ClearHubFeature request %xh unknown\n", wValue); + } + break; + case ClearPortFeature: + if (!wIndex || wIndex > 1) + goto error; + + switch (wValue) { + case USB_PORT_FEAT_ENABLE: + DWC_DEBUGPL(DBG_ANY, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_ENABLE\n"); + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtena = 1; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + break; + case USB_PORT_FEAT_SUSPEND: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_SUSPEND\n"); + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtres = 1; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + /* Clear Resume bit */ + mdelay(100); + hprt0.b.prtres = 0; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + break; + case USB_PORT_FEAT_POWER: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_POWER\n"); + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtpwr = 0; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + break; + case USB_PORT_FEAT_INDICATOR: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_INDICATOR\n"); + /* Port inidicator not supported */ + break; + case USB_PORT_FEAT_C_CONNECTION: + /* Clears drivers internal connect status change + * flag */ + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_C_CONNECTION\n"); + dwc_otg_hcd->flags.b.port_connect_status_change = 0; + break; + case USB_PORT_FEAT_C_RESET: + /* Clears the driver's internal Port Reset Change + * flag */ + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_C_RESET\n"); + dwc_otg_hcd->flags.b.port_reset_change = 0; + break; + case USB_PORT_FEAT_C_ENABLE: + /* Clears the driver's internal Port + * Enable/Disable Change flag */ + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_C_ENABLE\n"); + dwc_otg_hcd->flags.b.port_enable_change = 0; + break; + case USB_PORT_FEAT_C_SUSPEND: + /* Clears the driver's internal Port Suspend + * Change flag, which is set when resume signaling on + * the host port is complete */ + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_C_SUSPEND\n"); + dwc_otg_hcd->flags.b.port_suspend_change = 0; + break; + case USB_PORT_FEAT_C_OVER_CURRENT: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_C_OVER_CURRENT\n"); + dwc_otg_hcd->flags.b.port_over_current_change = 0; + break; + default: + retval = -EINVAL; + DWC_ERROR("DWC OTG HCD - " + "ClearPortFeature request %xh " + "unknown or unsupported\n", wValue); + } + break; + case GetHubDescriptor: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "GetHubDescriptor\n"); + desc = (struct usb_hub_descriptor *)buf; + desc->bDescLength = 9; + desc->bDescriptorType = 0x29; + desc->bNbrPorts = 1; + desc->wHubCharacteristics = 0x08; + desc->bPwrOn2PwrGood = 1; + desc->bHubContrCurrent = 0; + desc->u.hs.DeviceRemovable[0] = 0; + desc->u.hs.DeviceRemovable[1] = 0xff; + break; + case GetHubStatus: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "GetHubStatus\n"); + memset(buf, 0, 4); + break; + case GetPortStatus: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "GetPortStatus\n"); + + if (!wIndex || wIndex > 1) + goto error; + + port_status = 0; + + if (dwc_otg_hcd->flags.b.port_connect_status_change) + port_status |= (1 << USB_PORT_FEAT_C_CONNECTION); + + if (dwc_otg_hcd->flags.b.port_enable_change) + port_status |= (1 << USB_PORT_FEAT_C_ENABLE); + + if (dwc_otg_hcd->flags.b.port_suspend_change) + port_status |= (1 << USB_PORT_FEAT_C_SUSPEND); + + if (dwc_otg_hcd->flags.b.port_reset_change) + port_status |= (1 << USB_PORT_FEAT_C_RESET); + + if (dwc_otg_hcd->flags.b.port_over_current_change) { + DWC_ERROR("Device Not Supported\n"); + port_status |= (1 << USB_PORT_FEAT_C_OVER_CURRENT); + } + + if (!dwc_otg_hcd->flags.b.port_connect_status) { + /* + * The port is disconnected, which means the core is + * either in device mode or it soon will be. Just + * return 0's for the remainder of the port status + * since the port register can't be read if the core + * is in device mode. + */ + *((__le32 *) buf) = cpu_to_le32(port_status); + break; + } + + hprt0.d32 = dwc_read_reg32(core_if->host_if->hprt0); + DWC_DEBUGPL(DBG_HCDV, " HPRT0: 0x%08x\n", hprt0.d32); + + if (hprt0.b.prtconnsts) + port_status |= (1 << USB_PORT_FEAT_CONNECTION); + + if (hprt0.b.prtena) + port_status |= (1 << USB_PORT_FEAT_ENABLE); + + if (hprt0.b.prtsusp) + port_status |= (1 << USB_PORT_FEAT_SUSPEND); + + if (hprt0.b.prtovrcurract) + port_status |= (1 << USB_PORT_FEAT_OVER_CURRENT); + + if (hprt0.b.prtrst) + port_status |= (1 << USB_PORT_FEAT_RESET); + + if (hprt0.b.prtpwr) + port_status |= (1 << USB_PORT_FEAT_POWER); + + if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) + port_status |= (USB_PORT_STAT_HIGH_SPEED); + else if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED) + port_status |= (USB_PORT_STAT_LOW_SPEED); + + if (hprt0.b.prttstctl) + port_status |= (1 << USB_PORT_FEAT_TEST); + + /* USB_PORT_FEAT_INDICATOR unsupported always 0 */ + + *((__le32 *) buf) = cpu_to_le32(port_status); + + break; + case SetHubFeature: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "SetHubFeature\n"); + /* No HUB features supported */ + break; + case SetPortFeature: + if (wValue != USB_PORT_FEAT_TEST && (!wIndex || wIndex > 1)) + goto error; + + if (!dwc_otg_hcd->flags.b.port_connect_status) { + /* + * The port is disconnected, which means the core is + * either in device mode or it soon will be. Just + * return without doing anything since the port + * register can't be written if the core is in device + * mode. + */ + break; + } + + switch (wValue) { + case USB_PORT_FEAT_SUSPEND: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "SetPortFeature - USB_PORT_FEAT_SUSPEND\n"); + if (hcd->self.otg_port == wIndex && + hcd->self.b_hnp_enable) { + gotgctl_data_t gotgctl = {.d32=0}; + gotgctl.b.hstsethnpen = 1; + dwc_modify_reg32(&core_if->core_global_regs->gotgctl, + 0, gotgctl.d32); + core_if->op_state = A_SUSPEND; + } + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtsusp = 1; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + //DWC_PRINT("SUSPEND: HPRT0=%0x\n", hprt0.d32); + /* Suspend the Phy Clock */ + { + pcgcctl_data_t pcgcctl = {.d32=0}; + pcgcctl.b.stoppclk = 1; + dwc_write_reg32(core_if->pcgcctl, pcgcctl.d32); + } + + /* For HNP the bus must be suspended for at least 200ms. */ + if (hcd->self.b_hnp_enable) { + mdelay(200); + //DWC_PRINT("SUSPEND: wait complete! (%d)\n", _hcd->state); + } + break; + case USB_PORT_FEAT_POWER: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "SetPortFeature - USB_PORT_FEAT_POWER\n"); + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtpwr = 1; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + break; + case USB_PORT_FEAT_RESET: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "SetPortFeature - USB_PORT_FEAT_RESET\n"); + hprt0.d32 = dwc_otg_read_hprt0(core_if); + /* When B-Host the Port reset bit is set in + * the Start HCD Callback function, so that + * the reset is started within 1ms of the HNP + * success interrupt. */ + if (!hcd->self.is_b_host) { + hprt0.b.prtrst = 1; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + } + /* Clear reset bit in 10ms (FS/LS) or 50ms (HS) */ + MDELAY(60); + hprt0.b.prtrst = 0; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + break; + +#ifdef DWC_HS_ELECT_TST + case USB_PORT_FEAT_TEST: + { + uint32_t t; + gintmsk_data_t gintmsk; + + t = (wIndex >> 8); /* MSB wIndex USB */ + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "SetPortFeature - USB_PORT_FEAT_TEST %d\n", t); + warn("USB_PORT_FEAT_TEST %d\n", t); + if (t < 6) { + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prttstctl = t; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + } else { + /* Setup global vars with reg addresses (quick and + * dirty hack, should be cleaned up) + */ + global_regs = core_if->core_global_regs; + hc_global_regs = core_if->host_if->host_global_regs; + hc_regs = (dwc_otg_hc_regs_t *)((char *)global_regs + 0x500); + data_fifo = (uint32_t *)((char *)global_regs + 0x1000); + + if (t == 6) { /* HS_HOST_PORT_SUSPEND_RESUME */ + /* Save current interrupt mask */ + gintmsk.d32 = dwc_read_reg32(&global_regs->gintmsk); + + /* Disable all interrupts while we muck with + * the hardware directly + */ + dwc_write_reg32(&global_regs->gintmsk, 0); + + /* 15 second delay per the test spec */ + mdelay(15000); + + /* Drive suspend on the root port */ + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtsusp = 1; + hprt0.b.prtres = 0; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + + /* 15 second delay per the test spec */ + mdelay(15000); + + /* Drive resume on the root port */ + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtsusp = 0; + hprt0.b.prtres = 1; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + mdelay(100); + + /* Clear the resume bit */ + hprt0.b.prtres = 0; + dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); + + /* Restore interrupts */ + dwc_write_reg32(&global_regs->gintmsk, gintmsk.d32); + } else if (t == 7) { /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR setup */ + /* Save current interrupt mask */ + gintmsk.d32 = dwc_read_reg32(&global_regs->gintmsk); + + /* Disable all interrupts while we muck with + * the hardware directly + */ + dwc_write_reg32(&global_regs->gintmsk, 0); + + /* 15 second delay per the test spec */ + mdelay(15000); + + /* Send the Setup packet */ + do_setup(); + + /* 15 second delay so nothing else happens for awhile */ + mdelay(15000); + + /* Restore interrupts */ + dwc_write_reg32(&global_regs->gintmsk, gintmsk.d32); + } else if (t == 8) { /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR execute */ + /* Save current interrupt mask */ + gintmsk.d32 = dwc_read_reg32(&global_regs->gintmsk); + + /* Disable all interrupts while we muck with + * the hardware directly + */ + dwc_write_reg32(&global_regs->gintmsk, 0); + + /* Send the Setup packet */ + do_setup(); + + /* 15 second delay so nothing else happens for awhile */ + mdelay(15000); + + /* Send the In and Ack packets */ + do_in_ack(); + + /* 15 second delay so nothing else happens for awhile */ + mdelay(15000); + + /* Restore interrupts */ + dwc_write_reg32(&global_regs->gintmsk, gintmsk.d32); + } + } + break; + } +#endif /* DWC_HS_ELECT_TST */ + + case USB_PORT_FEAT_INDICATOR: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "SetPortFeature - USB_PORT_FEAT_INDICATOR\n"); + /* Not supported */ + break; + default: + retval = -EINVAL; + DWC_ERROR("DWC OTG HCD - " + "SetPortFeature request %xh " + "unknown or unsupported\n", wValue); + break; + } + break; + default: + error: + retval = -EINVAL; + DWC_WARN("DWC OTG HCD - " + "Unknown hub control request type or invalid typeReq: %xh wIndex: %xh wValue: %xh\n", + typeReq, wIndex, wValue); + break; + } + + return retval; +} + +/** + * Assigns transactions from a QTD to a free host channel and initializes the + * host channel to perform the transactions. The host channel is removed from + * the free list. + * + * @param hcd The HCD state structure. + * @param qh Transactions from the first QTD for this QH are selected and + * assigned to a free host channel. + */ +static void assign_and_init_hc(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + dwc_hc_t *hc; + dwc_otg_qtd_t *qtd; + struct urb *urb; + + DWC_DEBUGPL(DBG_HCDV, "%s(%p,%p)\n", __func__, hcd, qh); + + hc = list_entry(hcd->free_hc_list.next, dwc_hc_t, hc_list_entry); + + /* Remove the host channel from the free list. */ + list_del_init(&hc->hc_list_entry); + + qtd = list_entry(qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); + urb = qtd->urb; + qh->channel = hc; + qh->qtd_in_process = qtd; + + /* + * Use usb_pipedevice to determine device address. This address is + * 0 before the SET_ADDRESS command and the correct address afterward. + */ + hc->dev_addr = usb_pipedevice(urb->pipe); + hc->ep_num = usb_pipeendpoint(urb->pipe); + + if (urb->dev->speed == USB_SPEED_LOW) { + hc->speed = DWC_OTG_EP_SPEED_LOW; + } else if (urb->dev->speed == USB_SPEED_FULL) { + hc->speed = DWC_OTG_EP_SPEED_FULL; + } else { + hc->speed = DWC_OTG_EP_SPEED_HIGH; + } + + hc->max_packet = dwc_max_packet(qh->maxp); + + hc->xfer_started = 0; + hc->halt_status = DWC_OTG_HC_XFER_NO_HALT_STATUS; + hc->error_state = (qtd->error_count > 0); + hc->halt_on_queue = 0; + hc->halt_pending = 0; + hc->requests = 0; + + /* + * The following values may be modified in the transfer type section + * below. The xfer_len value may be reduced when the transfer is + * started to accommodate the max widths of the XferSize and PktCnt + * fields in the HCTSIZn register. + */ + hc->do_ping = qh->ping_state; + hc->ep_is_in = (usb_pipein(urb->pipe) != 0); + hc->data_pid_start = qh->data_toggle; + hc->multi_count = 1; + + if (hcd->core_if->dma_enable) { + hc->xfer_buff = (uint8_t *)urb->transfer_dma + urb->actual_length; + } else { + hc->xfer_buff = (uint8_t *)urb->transfer_buffer + urb->actual_length; + } + hc->xfer_len = urb->transfer_buffer_length - urb->actual_length; + hc->xfer_count = 0; + + /* + * Set the split attributes + */ + hc->do_split = 0; + if (qh->do_split) { + hc->do_split = 1; + hc->xact_pos = qtd->isoc_split_pos; + hc->complete_split = qtd->complete_split; + hc->hub_addr = urb->dev->tt->hub->devnum; + hc->port_addr = urb->dev->ttport; + } + + switch (usb_pipetype(urb->pipe)) { + case PIPE_CONTROL: + hc->ep_type = DWC_OTG_EP_TYPE_CONTROL; + switch (qtd->control_phase) { + case DWC_OTG_CONTROL_SETUP: + DWC_DEBUGPL(DBG_HCDV, " Control setup transaction\n"); + hc->do_ping = 0; + hc->ep_is_in = 0; + hc->data_pid_start = DWC_OTG_HC_PID_SETUP; + if (hcd->core_if->dma_enable) { + hc->xfer_buff = (uint8_t *)urb->setup_dma; + } else { + hc->xfer_buff = (uint8_t *)urb->setup_packet; + } + hc->xfer_len = 8; + break; + case DWC_OTG_CONTROL_DATA: + DWC_DEBUGPL(DBG_HCDV, " Control data transaction\n"); + hc->data_pid_start = qtd->data_toggle; + break; + case DWC_OTG_CONTROL_STATUS: + /* + * Direction is opposite of data direction or IN if no + * data. + */ + DWC_DEBUGPL(DBG_HCDV, " Control status transaction\n"); + if (urb->transfer_buffer_length == 0) { + hc->ep_is_in = 1; + } else { + hc->ep_is_in = (usb_pipein(urb->pipe) != USB_DIR_IN); + } + if (hc->ep_is_in) { + hc->do_ping = 0; + } + hc->data_pid_start = DWC_OTG_HC_PID_DATA1; + hc->xfer_len = 0; + if (hcd->core_if->dma_enable) { + hc->xfer_buff = (uint8_t *)hcd->status_buf_dma; + } else { + hc->xfer_buff = (uint8_t *)hcd->status_buf; + } + break; + } + break; + case PIPE_BULK: + hc->ep_type = DWC_OTG_EP_TYPE_BULK; + break; + case PIPE_INTERRUPT: + hc->ep_type = DWC_OTG_EP_TYPE_INTR; + break; + case PIPE_ISOCHRONOUS: + { + struct usb_iso_packet_descriptor *frame_desc; + frame_desc = &urb->iso_frame_desc[qtd->isoc_frame_index]; + hc->ep_type = DWC_OTG_EP_TYPE_ISOC; + if (hcd->core_if->dma_enable) { + hc->xfer_buff = (uint8_t *)urb->transfer_dma; + } else { + hc->xfer_buff = (uint8_t *)urb->transfer_buffer; + } + hc->xfer_buff += frame_desc->offset + qtd->isoc_split_offset; + hc->xfer_len = frame_desc->length - qtd->isoc_split_offset; + + if (hc->xact_pos == DWC_HCSPLIT_XACTPOS_ALL) { + if (hc->xfer_len <= 188) { + hc->xact_pos = DWC_HCSPLIT_XACTPOS_ALL; + } + else { + hc->xact_pos = DWC_HCSPLIT_XACTPOS_BEGIN; + } + } + } + break; + } + + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + /* + * This value may be modified when the transfer is started to + * reflect the actual transfer length. + */ + hc->multi_count = dwc_hb_mult(qh->maxp); + } + + dwc_otg_hc_init(hcd->core_if, hc); + hc->qh = qh; +} + +/** + * This function selects transactions from the HCD transfer schedule and + * assigns them to available host channels. It is called from HCD interrupt + * handler functions. + * + * @param hcd The HCD state structure. + * + * @return The types of new transactions that were assigned to host channels. + */ +dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t *hcd) +{ + struct list_head *qh_ptr; + dwc_otg_qh_t *qh; + int num_channels; + dwc_otg_transaction_type_e ret_val = DWC_OTG_TRANSACTION_NONE; + +#ifdef DEBUG_SOF + DWC_DEBUGPL(DBG_HCD, " Select Transactions\n"); +#endif + + spin_lock(&hcd->lock); + /* Process entries in the periodic ready list. */ + qh_ptr = hcd->periodic_sched_ready.next; + while (qh_ptr != &hcd->periodic_sched_ready && + !list_empty(&hcd->free_hc_list)) { + + qh = list_entry(qh_ptr, dwc_otg_qh_t, qh_list_entry); + assign_and_init_hc(hcd, qh); + + /* + * Move the QH from the periodic ready schedule to the + * periodic assigned schedule. + */ + qh_ptr = qh_ptr->next; + list_move(&qh->qh_list_entry, &hcd->periodic_sched_assigned); + + ret_val = DWC_OTG_TRANSACTION_PERIODIC; + } + + /* + * Process entries in the inactive portion of the non-periodic + * schedule. Some free host channels may not be used if they are + * reserved for periodic transfers. + */ + qh_ptr = hcd->non_periodic_sched_inactive.next; + num_channels = hcd->core_if->core_params->host_channels; + while (qh_ptr != &hcd->non_periodic_sched_inactive && + (hcd->non_periodic_channels < + num_channels - hcd->periodic_channels) && + !list_empty(&hcd->free_hc_list)) { + + qh = list_entry(qh_ptr, dwc_otg_qh_t, qh_list_entry); + assign_and_init_hc(hcd, qh); + + /* + * Move the QH from the non-periodic inactive schedule to the + * non-periodic active schedule. + */ + qh_ptr = qh_ptr->next; + list_move(&qh->qh_list_entry, &hcd->non_periodic_sched_active); + + if (ret_val == DWC_OTG_TRANSACTION_NONE) { + ret_val = DWC_OTG_TRANSACTION_NON_PERIODIC; + } else { + ret_val = DWC_OTG_TRANSACTION_ALL; + } + + hcd->non_periodic_channels++; + } + spin_unlock(&hcd->lock); + + return ret_val; +} + +/** + * Attempts to queue a single transaction request for a host channel + * associated with either a periodic or non-periodic transfer. This function + * assumes that there is space available in the appropriate request queue. For + * an OUT transfer or SETUP transaction in Slave mode, it checks whether space + * is available in the appropriate Tx FIFO. + * + * @param hcd The HCD state structure. + * @param hc Host channel descriptor associated with either a periodic or + * non-periodic transfer. + * @param fifo_dwords_avail Number of DWORDs available in the periodic Tx + * FIFO for periodic transfers or the non-periodic Tx FIFO for non-periodic + * transfers. + * + * @return 1 if a request is queued and more requests may be needed to + * complete the transfer, 0 if no more requests are required for this + * transfer, -1 if there is insufficient space in the Tx FIFO. + */ +static int queue_transaction(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + uint16_t fifo_dwords_avail) +{ + int retval; + + if (hcd->core_if->dma_enable) { + if (!hc->xfer_started) { + dwc_otg_hc_start_transfer(hcd->core_if, hc); + hc->qh->ping_state = 0; + } + retval = 0; + } else if (hc->halt_pending) { + /* Don't queue a request if the channel has been halted. */ + retval = 0; + } else if (hc->halt_on_queue) { + dwc_otg_hc_halt(hcd->core_if, hc, hc->halt_status); + retval = 0; + } else if (hc->do_ping) { + if (!hc->xfer_started) { + dwc_otg_hc_start_transfer(hcd->core_if, hc); + } + retval = 0; + } else if (!hc->ep_is_in || + hc->data_pid_start == DWC_OTG_HC_PID_SETUP) { + if ((fifo_dwords_avail * 4) >= hc->max_packet) { + if (!hc->xfer_started) { + dwc_otg_hc_start_transfer(hcd->core_if, hc); + retval = 1; + } else { + retval = dwc_otg_hc_continue_transfer(hcd->core_if, hc); + } + } else { + retval = -1; + } + } else { + if (!hc->xfer_started) { + dwc_otg_hc_start_transfer(hcd->core_if, hc); + retval = 1; + } else { + retval = dwc_otg_hc_continue_transfer(hcd->core_if, hc); + } + } + + return retval; +} + +/** + * Processes active non-periodic channels and queues transactions for these + * channels to the DWC_otg controller. After queueing transactions, the NP Tx + * FIFO Empty interrupt is enabled if there are more transactions to queue as + * NP Tx FIFO or request queue space becomes available. Otherwise, the NP Tx + * FIFO Empty interrupt is disabled. + */ +static void process_non_periodic_channels(dwc_otg_hcd_t *hcd) +{ + gnptxsts_data_t tx_status; + struct list_head *orig_qh_ptr; + dwc_otg_qh_t *qh; + int status; + int no_queue_space = 0; + int no_fifo_space = 0; + int more_to_do = 0; + + dwc_otg_core_global_regs_t *global_regs = hcd->core_if->core_global_regs; + + DWC_DEBUGPL(DBG_HCDV, "Queue non-periodic transactions\n"); +#ifdef DEBUG + tx_status.d32 = dwc_read_reg32(&global_regs->gnptxsts); + DWC_DEBUGPL(DBG_HCDV, " NP Tx Req Queue Space Avail (before queue): %d\n", + tx_status.b.nptxqspcavail); + DWC_DEBUGPL(DBG_HCDV, " NP Tx FIFO Space Avail (before queue): %d\n", + tx_status.b.nptxfspcavail); +#endif + /* + * Keep track of the starting point. Skip over the start-of-list + * entry. + */ + if (hcd->non_periodic_qh_ptr == &hcd->non_periodic_sched_active) { + hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next; + } + orig_qh_ptr = hcd->non_periodic_qh_ptr; + + /* + * Process once through the active list or until no more space is + * available in the request queue or the Tx FIFO. + */ + do { + tx_status.d32 = dwc_read_reg32(&global_regs->gnptxsts); + if (!hcd->core_if->dma_enable && tx_status.b.nptxqspcavail == 0) { + no_queue_space = 1; + break; + } + + qh = list_entry(hcd->non_periodic_qh_ptr, dwc_otg_qh_t, qh_list_entry); + status = queue_transaction(hcd, qh->channel, tx_status.b.nptxfspcavail); + + if (status > 0) { + more_to_do = 1; + } else if (status < 0) { + no_fifo_space = 1; + break; + } + + /* Advance to next QH, skipping start-of-list entry. */ + hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next; + if (hcd->non_periodic_qh_ptr == &hcd->non_periodic_sched_active) { + hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next; + } + + } while (hcd->non_periodic_qh_ptr != orig_qh_ptr); + + if (!hcd->core_if->dma_enable) { + gintmsk_data_t intr_mask = {.d32 = 0}; + intr_mask.b.nptxfempty = 1; + +#ifdef DEBUG + tx_status.d32 = dwc_read_reg32(&global_regs->gnptxsts); + DWC_DEBUGPL(DBG_HCDV, " NP Tx Req Queue Space Avail (after queue): %d\n", + tx_status.b.nptxqspcavail); + DWC_DEBUGPL(DBG_HCDV, " NP Tx FIFO Space Avail (after queue): %d\n", + tx_status.b.nptxfspcavail); +#endif + if (more_to_do || no_queue_space || no_fifo_space) { + /* + * May need to queue more transactions as the request + * queue or Tx FIFO empties. Enable the non-periodic + * Tx FIFO empty interrupt. (Always use the half-empty + * level to ensure that new requests are loaded as + * soon as possible.) + */ + dwc_modify_reg32(&global_regs->gintmsk, 0, intr_mask.d32); + } else { + /* + * Disable the Tx FIFO empty interrupt since there are + * no more transactions that need to be queued right + * now. This function is called from interrupt + * handlers to queue more transactions as transfer + * states change. + */ + dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, 0); + } + } +} + +/** + * Processes periodic channels for the next frame and queues transactions for + * these channels to the DWC_otg controller. After queueing transactions, the + * Periodic Tx FIFO Empty interrupt is enabled if there are more transactions + * to queue as Periodic Tx FIFO or request queue space becomes available. + * Otherwise, the Periodic Tx FIFO Empty interrupt is disabled. + */ +static void process_periodic_channels(dwc_otg_hcd_t *hcd) +{ + hptxsts_data_t tx_status; + struct list_head *qh_ptr; + dwc_otg_qh_t *qh; + int status; + int no_queue_space = 0; + int no_fifo_space = 0; + + dwc_otg_host_global_regs_t *host_regs; + host_regs = hcd->core_if->host_if->host_global_regs; + + DWC_DEBUGPL(DBG_HCDV, "Queue periodic transactions\n"); +#ifdef DEBUG + tx_status.d32 = dwc_read_reg32(&host_regs->hptxsts); + DWC_DEBUGPL(DBG_HCDV, " P Tx Req Queue Space Avail (before queue): %d\n", + tx_status.b.ptxqspcavail); + DWC_DEBUGPL(DBG_HCDV, " P Tx FIFO Space Avail (before queue): %d\n", + tx_status.b.ptxfspcavail); +#endif + + qh_ptr = hcd->periodic_sched_assigned.next; + while (qh_ptr != &hcd->periodic_sched_assigned) { + tx_status.d32 = dwc_read_reg32(&host_regs->hptxsts); + if (tx_status.b.ptxqspcavail == 0) { + no_queue_space = 1; + break; + } + + qh = list_entry(qh_ptr, dwc_otg_qh_t, qh_list_entry); + + /* + * Set a flag if we're queuing high-bandwidth in slave mode. + * The flag prevents any halts to get into the request queue in + * the middle of multiple high-bandwidth packets getting queued. + */ + if (!hcd->core_if->dma_enable && + qh->channel->multi_count > 1) + { + hcd->core_if->queuing_high_bandwidth = 1; + } + + status = queue_transaction(hcd, qh->channel, tx_status.b.ptxfspcavail); + if (status < 0) { + no_fifo_space = 1; + break; + } + + /* + * In Slave mode, stay on the current transfer until there is + * nothing more to do or the high-bandwidth request count is + * reached. In DMA mode, only need to queue one request. The + * controller automatically handles multiple packets for + * high-bandwidth transfers. + */ + if (hcd->core_if->dma_enable || status == 0 || + qh->channel->requests == qh->channel->multi_count) { + qh_ptr = qh_ptr->next; + /* + * Move the QH from the periodic assigned schedule to + * the periodic queued schedule. + */ + list_move(&qh->qh_list_entry, &hcd->periodic_sched_queued); + + /* done queuing high bandwidth */ + hcd->core_if->queuing_high_bandwidth = 0; + } + } + + if (!hcd->core_if->dma_enable) { + dwc_otg_core_global_regs_t *global_regs; + gintmsk_data_t intr_mask = {.d32 = 0}; + + global_regs = hcd->core_if->core_global_regs; + intr_mask.b.ptxfempty = 1; +#ifdef DEBUG + tx_status.d32 = dwc_read_reg32(&host_regs->hptxsts); + DWC_DEBUGPL(DBG_HCDV, " P Tx Req Queue Space Avail (after queue): %d\n", + tx_status.b.ptxqspcavail); + DWC_DEBUGPL(DBG_HCDV, " P Tx FIFO Space Avail (after queue): %d\n", + tx_status.b.ptxfspcavail); +#endif + if (!list_empty(&hcd->periodic_sched_assigned) || + no_queue_space || no_fifo_space) { + /* + * May need to queue more transactions as the request + * queue or Tx FIFO empties. Enable the periodic Tx + * FIFO empty interrupt. (Always use the half-empty + * level to ensure that new requests are loaded as + * soon as possible.) + */ + dwc_modify_reg32(&global_regs->gintmsk, 0, intr_mask.d32); + } else { + /* + * Disable the Tx FIFO empty interrupt since there are + * no more transactions that need to be queued right + * now. This function is called from interrupt + * handlers to queue more transactions as transfer + * states change. + */ + dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, 0); + } + } +} + +/** + * This function processes the currently active host channels and queues + * transactions for these channels to the DWC_otg controller. It is called + * from HCD interrupt handler functions. + * + * @param hcd The HCD state structure. + * @param tr_type The type(s) of transactions to queue (non-periodic, + * periodic, or both). + */ +void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t *hcd, + dwc_otg_transaction_type_e tr_type) +{ +#ifdef DEBUG_SOF + DWC_DEBUGPL(DBG_HCD, "Queue Transactions\n"); +#endif + /* Process host channels associated with periodic transfers. */ + if ((tr_type == DWC_OTG_TRANSACTION_PERIODIC || + tr_type == DWC_OTG_TRANSACTION_ALL) && + !list_empty(&hcd->periodic_sched_assigned)) { + + process_periodic_channels(hcd); + } + + /* Process host channels associated with non-periodic transfers. */ + if (tr_type == DWC_OTG_TRANSACTION_NON_PERIODIC || + tr_type == DWC_OTG_TRANSACTION_ALL) { + if (!list_empty(&hcd->non_periodic_sched_active)) { + process_non_periodic_channels(hcd); + } else { + /* + * Ensure NP Tx FIFO empty interrupt is disabled when + * there are no non-periodic transfers to process. + */ + gintmsk_data_t gintmsk = {.d32 = 0}; + gintmsk.b.nptxfempty = 1; + dwc_modify_reg32(&hcd->core_if->core_global_regs->gintmsk, + gintmsk.d32, 0); + } + } +} + +/** + * Sets the final status of an URB and returns it to the device driver. Any + * required cleanup of the URB is performed. + */ +void dwc_otg_hcd_complete_urb(dwc_otg_hcd_t *hcd, struct urb *urb, int status) +{ +#ifdef DEBUG + if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { + DWC_PRINT("%s: urb %p, device %d, ep %d %s, status=%d\n", + __func__, urb, usb_pipedevice(urb->pipe), + usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) ? "IN" : "OUT", status); + if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { + int i; + for (i = 0; i < urb->number_of_packets; i++) { + DWC_PRINT(" ISO Desc %d status: %d\n", + i, urb->iso_frame_desc[i].status); + } + } + } +#endif + + //if we use the aligned buffer instead of the original unaligned buffer, + //for IN data, we have to move the data to the original buffer + if((urb->transfer_dma==urb->aligned_transfer_dma)&&((urb->transfer_flags & URB_DIR_MASK)==URB_DIR_IN)){ + dma_sync_single_for_device(NULL,urb->transfer_dma,urb->actual_length,DMA_FROM_DEVICE); + memcpy(urb->transfer_buffer,urb->aligned_transfer_buffer,urb->actual_length); + } + + + urb->status = status; + urb->hcpriv = NULL; + usb_hcd_giveback_urb(dwc_otg_hcd_to_hcd(hcd), urb, status); +} + +/* + * Returns the Queue Head for an URB. + */ +dwc_otg_qh_t *dwc_urb_to_qh(struct urb *urb) +{ + struct usb_host_endpoint *ep = dwc_urb_to_endpoint(urb); + return (dwc_otg_qh_t *)ep->hcpriv; +} + +#ifdef DEBUG +void dwc_print_setup_data(uint8_t *setup) +{ + int i; + if (CHK_DEBUG_LEVEL(DBG_HCD)){ + DWC_PRINT("Setup Data = MSB "); + for (i = 7; i >= 0; i--) DWC_PRINT("%02x ", setup[i]); + DWC_PRINT("\n"); + DWC_PRINT(" bmRequestType Tranfer = %s\n", (setup[0] & 0x80) ? "Device-to-Host" : "Host-to-Device"); + DWC_PRINT(" bmRequestType Type = "); + switch ((setup[0] & 0x60) >> 5) { + case 0: DWC_PRINT("Standard\n"); break; + case 1: DWC_PRINT("Class\n"); break; + case 2: DWC_PRINT("Vendor\n"); break; + case 3: DWC_PRINT("Reserved\n"); break; + } + DWC_PRINT(" bmRequestType Recipient = "); + switch (setup[0] & 0x1f) { + case 0: DWC_PRINT("Device\n"); break; + case 1: DWC_PRINT("Interface\n"); break; + case 2: DWC_PRINT("Endpoint\n"); break; + case 3: DWC_PRINT("Other\n"); break; + default: DWC_PRINT("Reserved\n"); break; + } + DWC_PRINT(" bRequest = 0x%0x\n", setup[1]); + DWC_PRINT(" wValue = 0x%0x\n", *((uint16_t *)&setup[2])); + DWC_PRINT(" wIndex = 0x%0x\n", *((uint16_t *)&setup[4])); + DWC_PRINT(" wLength = 0x%0x\n\n", *((uint16_t *)&setup[6])); + } +} +#endif + +void dwc_otg_hcd_dump_frrem(dwc_otg_hcd_t *hcd) { +} + +void dwc_otg_hcd_dump_state(dwc_otg_hcd_t *hcd) +{ +#ifdef DEBUG + int num_channels; + int i; + gnptxsts_data_t np_tx_status; + hptxsts_data_t p_tx_status; + + num_channels = hcd->core_if->core_params->host_channels; + DWC_PRINT("\n"); + DWC_PRINT("************************************************************\n"); + DWC_PRINT("HCD State:\n"); + DWC_PRINT(" Num channels: %d\n", num_channels); + for (i = 0; i < num_channels; i++) { + dwc_hc_t *hc = hcd->hc_ptr_array[i]; + DWC_PRINT(" Channel %d:\n", i); + DWC_PRINT(" dev_addr: %d, ep_num: %d, ep_is_in: %d\n", + hc->dev_addr, hc->ep_num, hc->ep_is_in); + DWC_PRINT(" speed: %d\n", hc->speed); + DWC_PRINT(" ep_type: %d\n", hc->ep_type); + DWC_PRINT(" max_packet: %d\n", hc->max_packet); + DWC_PRINT(" data_pid_start: %d\n", hc->data_pid_start); + DWC_PRINT(" multi_count: %d\n", hc->multi_count); + DWC_PRINT(" xfer_started: %d\n", hc->xfer_started); + DWC_PRINT(" xfer_buff: %p\n", hc->xfer_buff); + DWC_PRINT(" xfer_len: %d\n", hc->xfer_len); + DWC_PRINT(" xfer_count: %d\n", hc->xfer_count); + DWC_PRINT(" halt_on_queue: %d\n", hc->halt_on_queue); + DWC_PRINT(" halt_pending: %d\n", hc->halt_pending); + DWC_PRINT(" halt_status: %d\n", hc->halt_status); + DWC_PRINT(" do_split: %d\n", hc->do_split); + DWC_PRINT(" complete_split: %d\n", hc->complete_split); + DWC_PRINT(" hub_addr: %d\n", hc->hub_addr); + DWC_PRINT(" port_addr: %d\n", hc->port_addr); + DWC_PRINT(" xact_pos: %d\n", hc->xact_pos); + DWC_PRINT(" requests: %d\n", hc->requests); + DWC_PRINT(" qh: %p\n", hc->qh); + if (hc->xfer_started) { + hfnum_data_t hfnum; + hcchar_data_t hcchar; + hctsiz_data_t hctsiz; + hcint_data_t hcint; + hcintmsk_data_t hcintmsk; + hfnum.d32 = dwc_read_reg32(&hcd->core_if->host_if->host_global_regs->hfnum); + hcchar.d32 = dwc_read_reg32(&hcd->core_if->host_if->hc_regs[i]->hcchar); + hctsiz.d32 = dwc_read_reg32(&hcd->core_if->host_if->hc_regs[i]->hctsiz); + hcint.d32 = dwc_read_reg32(&hcd->core_if->host_if->hc_regs[i]->hcint); + hcintmsk.d32 = dwc_read_reg32(&hcd->core_if->host_if->hc_regs[i]->hcintmsk); + DWC_PRINT(" hfnum: 0x%08x\n", hfnum.d32); + DWC_PRINT(" hcchar: 0x%08x\n", hcchar.d32); + DWC_PRINT(" hctsiz: 0x%08x\n", hctsiz.d32); + DWC_PRINT(" hcint: 0x%08x\n", hcint.d32); + DWC_PRINT(" hcintmsk: 0x%08x\n", hcintmsk.d32); + } + if (hc->xfer_started && hc->qh && hc->qh->qtd_in_process) { + dwc_otg_qtd_t *qtd; + struct urb *urb; + qtd = hc->qh->qtd_in_process; + urb = qtd->urb; + DWC_PRINT(" URB Info:\n"); + DWC_PRINT(" qtd: %p, urb: %p\n", qtd, urb); + if (urb) { + DWC_PRINT(" Dev: %d, EP: %d %s\n", + usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) ? "IN" : "OUT"); + DWC_PRINT(" Max packet size: %d\n", + usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))); + DWC_PRINT(" transfer_buffer: %p\n", urb->transfer_buffer); + DWC_PRINT(" transfer_dma: %p\n", (void *)urb->transfer_dma); + DWC_PRINT(" transfer_buffer_length: %d\n", urb->transfer_buffer_length); + DWC_PRINT(" actual_length: %d\n", urb->actual_length); + } + } + } + DWC_PRINT(" non_periodic_channels: %d\n", hcd->non_periodic_channels); + DWC_PRINT(" periodic_channels: %d\n", hcd->periodic_channels); + DWC_PRINT(" periodic_usecs: %d\n", hcd->periodic_usecs); + np_tx_status.d32 = dwc_read_reg32(&hcd->core_if->core_global_regs->gnptxsts); + DWC_PRINT(" NP Tx Req Queue Space Avail: %d\n", np_tx_status.b.nptxqspcavail); + DWC_PRINT(" NP Tx FIFO Space Avail: %d\n", np_tx_status.b.nptxfspcavail); + p_tx_status.d32 = dwc_read_reg32(&hcd->core_if->host_if->host_global_regs->hptxsts); + DWC_PRINT(" P Tx Req Queue Space Avail: %d\n", p_tx_status.b.ptxqspcavail); + DWC_PRINT(" P Tx FIFO Space Avail: %d\n", p_tx_status.b.ptxfspcavail); + dwc_otg_hcd_dump_frrem(hcd); + dwc_otg_dump_global_registers(hcd->core_if); + dwc_otg_dump_host_registers(hcd->core_if); + DWC_PRINT("************************************************************\n"); + DWC_PRINT("\n"); +#endif +} +#endif /* DWC_DEVICE_ONLY */ diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd.h b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd.h new file mode 100644 index 0000000000..935f353b92 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd.h @@ -0,0 +1,652 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd.h $ + * $Revision: #45 $ + * $Date: 2008/07/15 $ + * $Change: 1064918 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY +#ifndef __DWC_HCD_H__ +#define __DWC_HCD_H__ + +#include <linux/list.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +struct dwc_otg_device; + +#include "otg_cil.h" + +/** + * @file + * + * This file contains the structures, constants, and interfaces for + * the Host Contoller Driver (HCD). + * + * The Host Controller Driver (HCD) is responsible for translating requests + * from the USB Driver into the appropriate actions on the DWC_otg controller. + * It isolates the USBD from the specifics of the controller by providing an + * API to the USBD. + */ + +/** + * Phases for control transfers. + */ +typedef enum dwc_otg_control_phase { + DWC_OTG_CONTROL_SETUP, + DWC_OTG_CONTROL_DATA, + DWC_OTG_CONTROL_STATUS +} dwc_otg_control_phase_e; + +/** Transaction types. */ +typedef enum dwc_otg_transaction_type { + DWC_OTG_TRANSACTION_NONE, + DWC_OTG_TRANSACTION_PERIODIC, + DWC_OTG_TRANSACTION_NON_PERIODIC, + DWC_OTG_TRANSACTION_ALL +} dwc_otg_transaction_type_e; + +/** + * A Queue Transfer Descriptor (QTD) holds the state of a bulk, control, + * interrupt, or isochronous transfer. A single QTD is created for each URB + * (of one of these types) submitted to the HCD. The transfer associated with + * a QTD may require one or multiple transactions. + * + * A QTD is linked to a Queue Head, which is entered in either the + * non-periodic or periodic schedule for execution. When a QTD is chosen for + * execution, some or all of its transactions may be executed. After + * execution, the state of the QTD is updated. The QTD may be retired if all + * its transactions are complete or if an error occurred. Otherwise, it + * remains in the schedule so more transactions can be executed later. + */ +typedef struct dwc_otg_qtd { + /** + * Determines the PID of the next data packet for the data phase of + * control transfers. Ignored for other transfer types.<br> + * One of the following values: + * - DWC_OTG_HC_PID_DATA0 + * - DWC_OTG_HC_PID_DATA1 + */ + uint8_t data_toggle; + + /** Current phase for control transfers (Setup, Data, or Status). */ + dwc_otg_control_phase_e control_phase; + + /** Keep track of the current split type + * for FS/LS endpoints on a HS Hub */ + uint8_t complete_split; + + /** How many bytes transferred during SSPLIT OUT */ + uint32_t ssplit_out_xfer_count; + + /** + * Holds the number of bus errors that have occurred for a transaction + * within this transfer. + */ + uint8_t error_count; + + /** + * Index of the next frame descriptor for an isochronous transfer. A + * frame descriptor describes the buffer position and length of the + * data to be transferred in the next scheduled (micro)frame of an + * isochronous transfer. It also holds status for that transaction. + * The frame index starts at 0. + */ + int isoc_frame_index; + + /** Position of the ISOC split on full/low speed */ + uint8_t isoc_split_pos; + + /** Position of the ISOC split in the buffer for the current frame */ + uint16_t isoc_split_offset; + + /** URB for this transfer */ + struct urb *urb; + + /** This list of QTDs */ + struct list_head qtd_list_entry; + +} dwc_otg_qtd_t; + +/** + * A Queue Head (QH) holds the static characteristics of an endpoint and + * maintains a list of transfers (QTDs) for that endpoint. A QH structure may + * be entered in either the non-periodic or periodic schedule. + */ +typedef struct dwc_otg_qh { + /** + * Endpoint type. + * One of the following values: + * - USB_ENDPOINT_XFER_CONTROL + * - USB_ENDPOINT_XFER_ISOC + * - USB_ENDPOINT_XFER_BULK + * - USB_ENDPOINT_XFER_INT + */ + uint8_t ep_type; + uint8_t ep_is_in; + + /** wMaxPacketSize Field of Endpoint Descriptor. */ + uint16_t maxp; + + /** + * Determines the PID of the next data packet for non-control + * transfers. Ignored for control transfers.<br> + * One of the following values: + * - DWC_OTG_HC_PID_DATA0 + * - DWC_OTG_HC_PID_DATA1 + */ + uint8_t data_toggle; + + /** Ping state if 1. */ + uint8_t ping_state; + + /** + * List of QTDs for this QH. + */ + struct list_head qtd_list; + + /** Host channel currently processing transfers for this QH. */ + dwc_hc_t *channel; + + /** QTD currently assigned to a host channel for this QH. */ + dwc_otg_qtd_t *qtd_in_process; + + /** Full/low speed endpoint on high-speed hub requires split. */ + uint8_t do_split; + + /** @name Periodic schedule information */ + /** @{ */ + + /** Bandwidth in microseconds per (micro)frame. */ + uint8_t usecs; + + /** Interval between transfers in (micro)frames. */ + uint16_t interval; + + /** + * (micro)frame to initialize a periodic transfer. The transfer + * executes in the following (micro)frame. + */ + uint16_t sched_frame; + + /** (micro)frame at which last start split was initialized. */ + uint16_t start_split_frame; + + u16 speed; + u16 frame_usecs[8]; + + /** @} */ + + /** Entry for QH in either the periodic or non-periodic schedule. */ + struct list_head qh_list_entry; +} dwc_otg_qh_t; + +/** + * This structure holds the state of the HCD, including the non-periodic and + * periodic schedules. + */ +typedef struct dwc_otg_hcd { + /** The DWC otg device pointer */ + struct dwc_otg_device *otg_dev; + + /** DWC OTG Core Interface Layer */ + dwc_otg_core_if_t *core_if; + + /** Internal DWC HCD Flags */ + volatile union dwc_otg_hcd_internal_flags { + uint32_t d32; + struct { + unsigned port_connect_status_change : 1; + unsigned port_connect_status : 1; + unsigned port_reset_change : 1; + unsigned port_enable_change : 1; + unsigned port_suspend_change : 1; + unsigned port_over_current_change : 1; + unsigned reserved : 27; + } b; + } flags; + + /** + * Inactive items in the non-periodic schedule. This is a list of + * Queue Heads. Transfers associated with these Queue Heads are not + * currently assigned to a host channel. + */ + struct list_head non_periodic_sched_inactive; + + /** + * Active items in the non-periodic schedule. This is a list of + * Queue Heads. Transfers associated with these Queue Heads are + * currently assigned to a host channel. + */ + struct list_head non_periodic_sched_active; + + /** + * Pointer to the next Queue Head to process in the active + * non-periodic schedule. + */ + struct list_head *non_periodic_qh_ptr; + + /** + * Inactive items in the periodic schedule. This is a list of QHs for + * periodic transfers that are _not_ scheduled for the next frame. + * Each QH in the list has an interval counter that determines when it + * needs to be scheduled for execution. This scheduling mechanism + * allows only a simple calculation for periodic bandwidth used (i.e. + * must assume that all periodic transfers may need to execute in the + * same frame). However, it greatly simplifies scheduling and should + * be sufficient for the vast majority of OTG hosts, which need to + * connect to a small number of peripherals at one time. + * + * Items move from this list to periodic_sched_ready when the QH + * interval counter is 0 at SOF. + */ + struct list_head periodic_sched_inactive; + + /** + * List of periodic QHs that are ready for execution in the next + * frame, but have not yet been assigned to host channels. + * + * Items move from this list to periodic_sched_assigned as host + * channels become available during the current frame. + */ + struct list_head periodic_sched_ready; + + /** + * List of periodic QHs to be executed in the next frame that are + * assigned to host channels. + * + * Items move from this list to periodic_sched_queued as the + * transactions for the QH are queued to the DWC_otg controller. + */ + struct list_head periodic_sched_assigned; + + /** + * List of periodic QHs that have been queued for execution. + * + * Items move from this list to either periodic_sched_inactive or + * periodic_sched_ready when the channel associated with the transfer + * is released. If the interval for the QH is 1, the item moves to + * periodic_sched_ready because it must be rescheduled for the next + * frame. Otherwise, the item moves to periodic_sched_inactive. + */ + struct list_head periodic_sched_queued; + + /** + * Total bandwidth claimed so far for periodic transfers. This value + * is in microseconds per (micro)frame. The assumption is that all + * periodic transfers may occur in the same (micro)frame. + */ + uint16_t periodic_usecs; + + /* + * Total bandwidth claimed so far for all periodic transfers + * in a frame. + * This will include a mixture of HS and FS transfers. + * Units are microseconds per (micro)frame. + * We have a budget per frame and have to schedule + * transactions accordingly. + * Watch out for the fact that things are actually scheduled for the + * "next frame". + */ + u16 frame_usecs[8]; + + /** + * Frame number read from the core at SOF. The value ranges from 0 to + * DWC_HFNUM_MAX_FRNUM. + */ + uint16_t frame_number; + + /** + * Free host channels in the controller. This is a list of + * dwc_hc_t items. + */ + struct list_head free_hc_list; + + /** + * Number of host channels assigned to periodic transfers. Currently + * assuming that there is a dedicated host channel for each periodic + * transaction and at least one host channel available for + * non-periodic transactions. + */ + int periodic_channels; + + /** + * Number of host channels assigned to non-periodic transfers. + */ + int non_periodic_channels; + + /** + * Array of pointers to the host channel descriptors. Allows accessing + * a host channel descriptor given the host channel number. This is + * useful in interrupt handlers. + */ + dwc_hc_t *hc_ptr_array[MAX_EPS_CHANNELS]; + + /** + * Buffer to use for any data received during the status phase of a + * control transfer. Normally no data is transferred during the status + * phase. This buffer is used as a bit bucket. + */ + uint8_t *status_buf; + + /** + * DMA address for status_buf. + */ + dma_addr_t status_buf_dma; +#define DWC_OTG_HCD_STATUS_BUF_SIZE 64 + + /** + * Structure to allow starting the HCD in a non-interrupt context + * during an OTG role change. + */ + struct delayed_work start_work; + + /** + * Connection timer. An OTG host must display a message if the device + * does not connect. Started when the VBus power is turned on via + * sysfs attribute "buspower". + */ + struct timer_list conn_timer; + + /* Tasket to do a reset */ + struct tasklet_struct *reset_tasklet; + + /* */ + spinlock_t lock; + +#ifdef DEBUG + uint32_t frrem_samples; + uint64_t frrem_accum; + + uint32_t hfnum_7_samples_a; + uint64_t hfnum_7_frrem_accum_a; + uint32_t hfnum_0_samples_a; + uint64_t hfnum_0_frrem_accum_a; + uint32_t hfnum_other_samples_a; + uint64_t hfnum_other_frrem_accum_a; + + uint32_t hfnum_7_samples_b; + uint64_t hfnum_7_frrem_accum_b; + uint32_t hfnum_0_samples_b; + uint64_t hfnum_0_frrem_accum_b; + uint32_t hfnum_other_samples_b; + uint64_t hfnum_other_frrem_accum_b; +#endif +} dwc_otg_hcd_t; + +/** Gets the dwc_otg_hcd from a struct usb_hcd */ +static inline dwc_otg_hcd_t *hcd_to_dwc_otg_hcd(struct usb_hcd *hcd) +{ + return (dwc_otg_hcd_t *)(hcd->hcd_priv); +} + +/** Gets the struct usb_hcd that contains a dwc_otg_hcd_t. */ +static inline struct usb_hcd *dwc_otg_hcd_to_hcd(dwc_otg_hcd_t *dwc_otg_hcd) +{ + return container_of((void *)dwc_otg_hcd, struct usb_hcd, hcd_priv); +} + +/** @name HCD Create/Destroy Functions */ +/** @{ */ +extern int dwc_otg_hcd_init(struct platform_device *pdev); +extern void dwc_otg_hcd_remove(struct platform_device *pdev); +/** @} */ + +/** @name Linux HC Driver API Functions */ +/** @{ */ + +extern int dwc_otg_hcd_start(struct usb_hcd *hcd); +extern void dwc_otg_hcd_stop(struct usb_hcd *hcd); +extern int dwc_otg_hcd_get_frame_number(struct usb_hcd *hcd); +extern void dwc_otg_hcd_free(struct usb_hcd *hcd); +extern int dwc_otg_hcd_urb_enqueue(struct usb_hcd *hcd, + // struct usb_host_endpoint *ep, + struct urb *urb, + gfp_t mem_flags + ); +extern int dwc_otg_hcd_urb_dequeue(struct usb_hcd *hcd, + struct urb *urb, int status); +extern void dwc_otg_hcd_endpoint_disable(struct usb_hcd *hcd, + struct usb_host_endpoint *ep); +extern irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *hcd); +extern int dwc_otg_hcd_hub_status_data(struct usb_hcd *hcd, + char *buf); +extern int dwc_otg_hcd_hub_control(struct usb_hcd *hcd, + u16 typeReq, + u16 wValue, + u16 wIndex, + char *buf, + u16 wLength); + +/** @} */ + +/** @name Transaction Execution Functions */ +/** @{ */ +extern dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t *hcd); +extern void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t *hcd, + dwc_otg_transaction_type_e tr_type); +extern void dwc_otg_hcd_complete_urb(dwc_otg_hcd_t *_hcd, struct urb *urb, + int status); +/** @} */ + +/** @name Interrupt Handler Functions */ +/** @{ */ +extern int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_perio_tx_fifo_empty_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_incomplete_periodic_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_port_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_conn_id_status_change_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_disconnect_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd_t *dwc_otg_hcd, uint32_t num); +extern int32_t dwc_otg_hcd_handle_session_req_intr(dwc_otg_hcd_t *dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_wakeup_detected_intr(dwc_otg_hcd_t *dwc_otg_hcd); +/** @} */ + + +/** @name Schedule Queue Functions */ +/** @{ */ + +/* Implemented in dwc_otg_hcd_queue.c */ +extern int init_hcd_usecs(dwc_otg_hcd_t *hcd); +extern dwc_otg_qh_t *dwc_otg_hcd_qh_create(dwc_otg_hcd_t *hcd, struct urb *urb); +extern void dwc_otg_hcd_qh_init(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, struct urb *urb); +extern void dwc_otg_hcd_qh_free(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh); +extern int dwc_otg_hcd_qh_add(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh); +extern void dwc_otg_hcd_qh_remove(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh); +extern void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, int sched_csplit); + +/** Remove and free a QH */ +static inline void dwc_otg_hcd_qh_remove_and_free(dwc_otg_hcd_t *hcd, + dwc_otg_qh_t *qh) +{ + dwc_otg_hcd_qh_remove(hcd, qh); + dwc_otg_hcd_qh_free(hcd, qh); +} + +/** Allocates memory for a QH structure. + * @return Returns the memory allocate or NULL on error. */ +static inline dwc_otg_qh_t *dwc_otg_hcd_qh_alloc(void) +{ + return (dwc_otg_qh_t *) kmalloc(sizeof(dwc_otg_qh_t), GFP_KERNEL); +} + +extern dwc_otg_qtd_t *dwc_otg_hcd_qtd_create(struct urb *urb); +extern void dwc_otg_hcd_qtd_init(dwc_otg_qtd_t *qtd, struct urb *urb); +extern int dwc_otg_hcd_qtd_add(dwc_otg_qtd_t *qtd, dwc_otg_hcd_t *dwc_otg_hcd); + +/** Allocates memory for a QTD structure. + * @return Returns the memory allocate or NULL on error. */ +static inline dwc_otg_qtd_t *dwc_otg_hcd_qtd_alloc(void) +{ + return (dwc_otg_qtd_t *) kmalloc(sizeof(dwc_otg_qtd_t), GFP_KERNEL); +} + +/** Frees the memory for a QTD structure. QTD should already be removed from + * list. + * @param[in] qtd QTD to free.*/ +static inline void dwc_otg_hcd_qtd_free(dwc_otg_qtd_t *qtd) +{ + kfree(qtd); +} + +/** Remove and free a QTD */ +static inline void dwc_otg_hcd_qtd_remove_and_free(dwc_otg_hcd_t *hcd, dwc_otg_qtd_t *qtd) +{ + list_del(&qtd->qtd_list_entry); + dwc_otg_hcd_qtd_free(qtd); +} + +/** @} */ + + +/** @name Internal Functions */ +/** @{ */ +dwc_otg_qh_t *dwc_urb_to_qh(struct urb *urb); +void dwc_otg_hcd_dump_frrem(dwc_otg_hcd_t *hcd); +void dwc_otg_hcd_dump_state(dwc_otg_hcd_t *hcd); +/** @} */ + +/** Gets the usb_host_endpoint associated with an URB. */ +static inline struct usb_host_endpoint *dwc_urb_to_endpoint(struct urb *urb) +{ + struct usb_device *dev = urb->dev; + int ep_num = usb_pipeendpoint(urb->pipe); + + if (usb_pipein(urb->pipe)) + return dev->ep_in[ep_num]; + else + return dev->ep_out[ep_num]; +} + +/** + * Gets the endpoint number from a _bEndpointAddress argument. The endpoint is + * qualified with its direction (possible 32 endpoints per device). + */ +#define dwc_ep_addr_to_endpoint(_bEndpointAddress_) ((_bEndpointAddress_ & USB_ENDPOINT_NUMBER_MASK) | \ + ((_bEndpointAddress_ & USB_DIR_IN) != 0) << 4) + +/** Gets the QH that contains the list_head */ +#define dwc_list_to_qh(_list_head_ptr_) container_of(_list_head_ptr_, dwc_otg_qh_t, qh_list_entry) + +/** Gets the QTD that contains the list_head */ +#define dwc_list_to_qtd(_list_head_ptr_) container_of(_list_head_ptr_, dwc_otg_qtd_t, qtd_list_entry) + +/** Check if QH is non-periodic */ +#define dwc_qh_is_non_per(_qh_ptr_) ((_qh_ptr_->ep_type == USB_ENDPOINT_XFER_BULK) || \ + (_qh_ptr_->ep_type == USB_ENDPOINT_XFER_CONTROL)) + +/** High bandwidth multiplier as encoded in highspeed endpoint descriptors */ +#define dwc_hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03)) + +/** Packet size for any kind of endpoint descriptor */ +#define dwc_max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff) + +/** + * Returns true if _frame1 is less than or equal to _frame2. The comparison is + * done modulo DWC_HFNUM_MAX_FRNUM. This accounts for the rollover of the + * frame number when the max frame number is reached. + */ +static inline int dwc_frame_num_le(uint16_t frame1, uint16_t frame2) +{ + return ((frame2 - frame1) & DWC_HFNUM_MAX_FRNUM) <= + (DWC_HFNUM_MAX_FRNUM >> 1); +} + +/** + * Returns true if _frame1 is greater than _frame2. The comparison is done + * modulo DWC_HFNUM_MAX_FRNUM. This accounts for the rollover of the frame + * number when the max frame number is reached. + */ +static inline int dwc_frame_num_gt(uint16_t frame1, uint16_t frame2) +{ + return (frame1 != frame2) && + (((frame1 - frame2) & DWC_HFNUM_MAX_FRNUM) < + (DWC_HFNUM_MAX_FRNUM >> 1)); +} + +/** + * Increments _frame by the amount specified by _inc. The addition is done + * modulo DWC_HFNUM_MAX_FRNUM. Returns the incremented value. + */ +static inline uint16_t dwc_frame_num_inc(uint16_t frame, uint16_t inc) +{ + return (frame + inc) & DWC_HFNUM_MAX_FRNUM; +} + +static inline uint16_t dwc_full_frame_num(uint16_t frame) +{ + return (frame & DWC_HFNUM_MAX_FRNUM) >> 3; +} + +static inline uint16_t dwc_micro_frame_num(uint16_t frame) +{ + return frame & 0x7; +} + +#ifdef DEBUG +/** + * Macro to sample the remaining PHY clocks left in the current frame. This + * may be used during debugging to determine the average time it takes to + * execute sections of code. There are two possible sample points, "a" and + * "b", so the _letter argument must be one of these values. + * + * To dump the average sample times, read the "hcd_frrem" sysfs attribute. For + * example, "cat /sys/devices/lm0/hcd_frrem". + */ +#define dwc_sample_frrem(_hcd, _qh, _letter) \ +{ \ + hfnum_data_t hfnum; \ + dwc_otg_qtd_t *qtd; \ + qtd = list_entry(_qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); \ + if (usb_pipeint(qtd->urb->pipe) && _qh->start_split_frame != 0 && !qtd->complete_split) { \ + hfnum.d32 = dwc_read_reg32(&_hcd->core_if->host_if->host_global_regs->hfnum); \ + switch (hfnum.b.frnum & 0x7) { \ + case 7: \ + _hcd->hfnum_7_samples_##_letter++; \ + _hcd->hfnum_7_frrem_accum_##_letter += hfnum.b.frrem; \ + break; \ + case 0: \ + _hcd->hfnum_0_samples_##_letter++; \ + _hcd->hfnum_0_frrem_accum_##_letter += hfnum.b.frrem; \ + break; \ + default: \ + _hcd->hfnum_other_samples_##_letter++; \ + _hcd->hfnum_other_frrem_accum_##_letter += hfnum.b.frrem; \ + break; \ + } \ + } \ +} +#else +#define dwc_sample_frrem(_hcd, _qh, _letter) +#endif +#endif +#endif /* DWC_DEVICE_ONLY */ diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd_intr.c b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd_intr.c new file mode 100644 index 0000000000..e63b8630d2 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd_intr.c @@ -0,0 +1,1828 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_intr.c $ + * $Revision: #70 $ + * $Date: 2008/10/16 $ + * $Change: 1117667 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY + +#include <linux/version.h> + +#include "otg_driver.h" +#include "otg_hcd.h" +#include "otg_regs.h" + +/** @file + * This file contains the implementation of the HCD Interrupt handlers. + */ + +/** This function handles interrupts for the HCD. */ +int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t *dwc_otg_hcd) +{ + int retval = 0; + + dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; + gintsts_data_t gintsts; +#ifdef DEBUG + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; +#endif + + /* Check if HOST Mode */ + if (dwc_otg_is_host_mode(core_if)) { + gintsts.d32 = dwc_otg_read_core_intr(core_if); + if (!gintsts.d32) { + return 0; + } + +#ifdef DEBUG + /* Don't print debug message in the interrupt handler on SOF */ +# ifndef DEBUG_SOF + if (gintsts.d32 != DWC_SOF_INTR_MASK) +# endif + DWC_DEBUGPL(DBG_HCD, "\n"); +#endif + +#ifdef DEBUG +# ifndef DEBUG_SOF + if (gintsts.d32 != DWC_SOF_INTR_MASK) +# endif + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Interrupt Detected gintsts&gintmsk=0x%08x\n", gintsts.d32); +#endif + if (gintsts.b.usbreset) { + DWC_PRINT("Usb Reset In Host Mode\n"); + } + if (gintsts.b.sofintr) { + retval |= dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd); + } + if (gintsts.b.rxstsqlvl) { + retval |= dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd); + } + if (gintsts.b.nptxfempty) { + retval |= dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd); + } + if (gintsts.b.i2cintr) { + /** @todo Implement i2cintr handler. */ + } + if (gintsts.b.portintr) { + retval |= dwc_otg_hcd_handle_port_intr(dwc_otg_hcd); + } + if (gintsts.b.hcintr) { + retval |= dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd); + } + if (gintsts.b.ptxfempty) { + retval |= dwc_otg_hcd_handle_perio_tx_fifo_empty_intr(dwc_otg_hcd); + } +#ifdef DEBUG +# ifndef DEBUG_SOF + if (gintsts.d32 != DWC_SOF_INTR_MASK) +# endif + { + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Finished Servicing Interrupts\n"); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD gintsts=0x%08x\n", + dwc_read_reg32(&global_regs->gintsts)); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD gintmsk=0x%08x\n", + dwc_read_reg32(&global_regs->gintmsk)); + } +#endif + +#ifdef DEBUG +# ifndef DEBUG_SOF + if (gintsts.d32 != DWC_SOF_INTR_MASK) +# endif + DWC_DEBUGPL(DBG_HCD, "\n"); +#endif + + } + S3C2410X_CLEAR_EINTPEND(); + + return retval; +} + +#ifdef DWC_TRACK_MISSED_SOFS +#warning Compiling code to track missed SOFs +#define FRAME_NUM_ARRAY_SIZE 1000 +/** + * This function is for debug only. + */ +static inline void track_missed_sofs(uint16_t curr_frame_number) +{ + static uint16_t frame_num_array[FRAME_NUM_ARRAY_SIZE]; + static uint16_t last_frame_num_array[FRAME_NUM_ARRAY_SIZE]; + static int frame_num_idx = 0; + static uint16_t last_frame_num = DWC_HFNUM_MAX_FRNUM; + static int dumped_frame_num_array = 0; + + if (frame_num_idx < FRAME_NUM_ARRAY_SIZE) { + if (((last_frame_num + 1) & DWC_HFNUM_MAX_FRNUM) != curr_frame_number) { + frame_num_array[frame_num_idx] = curr_frame_number; + last_frame_num_array[frame_num_idx++] = last_frame_num; + } + } else if (!dumped_frame_num_array) { + int i; + printk(KERN_EMERG USB_DWC "Frame Last Frame\n"); + printk(KERN_EMERG USB_DWC "----- ----------\n"); + for (i = 0; i < FRAME_NUM_ARRAY_SIZE; i++) { + printk(KERN_EMERG USB_DWC "0x%04x 0x%04x\n", + frame_num_array[i], last_frame_num_array[i]); + } + dumped_frame_num_array = 1; + } + last_frame_num = curr_frame_number; +} +#endif + +/** + * Handles the start-of-frame interrupt in host mode. Non-periodic + * transactions may be queued to the DWC_otg controller for the current + * (micro)frame. Periodic transactions may be queued to the controller for the + * next (micro)frame. + */ +int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t *hcd) +{ + hfnum_data_t hfnum; + struct list_head *qh_entry; + dwc_otg_qh_t *qh; + dwc_otg_transaction_type_e tr_type; + gintsts_data_t gintsts = {.d32 = 0}; + + hfnum.d32 = dwc_read_reg32(&hcd->core_if->host_if->host_global_regs->hfnum); + +#ifdef DEBUG_SOF + DWC_DEBUGPL(DBG_HCD, "--Start of Frame Interrupt--\n"); +#endif + hcd->frame_number = hfnum.b.frnum; + +#ifdef DEBUG + hcd->frrem_accum += hfnum.b.frrem; + hcd->frrem_samples++; +#endif + +#ifdef DWC_TRACK_MISSED_SOFS + track_missed_sofs(hcd->frame_number); +#endif + + /* Determine whether any periodic QHs should be executed. */ + qh_entry = hcd->periodic_sched_inactive.next; + while (qh_entry != &hcd->periodic_sched_inactive) { + qh = list_entry(qh_entry, dwc_otg_qh_t, qh_list_entry); + qh_entry = qh_entry->next; + if (dwc_frame_num_le(qh->sched_frame, hcd->frame_number)) { + /* + * Move QH to the ready list to be executed next + * (micro)frame. + */ + list_move(&qh->qh_list_entry, &hcd->periodic_sched_ready); + } + } + + tr_type = dwc_otg_hcd_select_transactions(hcd); + if (tr_type != DWC_OTG_TRANSACTION_NONE) { + dwc_otg_hcd_queue_transactions(hcd, tr_type); + } + + /* Clear interrupt */ + gintsts.b.sofintr = 1; + dwc_write_reg32(&hcd->core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** Handles the Rx Status Queue Level Interrupt, which indicates that there is at + * least one packet in the Rx FIFO. The packets are moved from the FIFO to + * memory if the DWC_otg controller is operating in Slave mode. */ +int32_t dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd_t *dwc_otg_hcd) +{ + host_grxsts_data_t grxsts; + dwc_hc_t *hc = NULL; + + DWC_DEBUGPL(DBG_HCD, "--RxStsQ Level Interrupt--\n"); + + grxsts.d32 = dwc_read_reg32(&dwc_otg_hcd->core_if->core_global_regs->grxstsp); + + hc = dwc_otg_hcd->hc_ptr_array[grxsts.b.chnum]; + + /* Packet Status */ + DWC_DEBUGPL(DBG_HCDV, " Ch num = %d\n", grxsts.b.chnum); + DWC_DEBUGPL(DBG_HCDV, " Count = %d\n", grxsts.b.bcnt); + DWC_DEBUGPL(DBG_HCDV, " DPID = %d, hc.dpid = %d\n", grxsts.b.dpid, hc->data_pid_start); + DWC_DEBUGPL(DBG_HCDV, " PStatus = %d\n", grxsts.b.pktsts); + + switch (grxsts.b.pktsts) { + case DWC_GRXSTS_PKTSTS_IN: + /* Read the data into the host buffer. */ + if (grxsts.b.bcnt > 0) { + dwc_otg_read_packet(dwc_otg_hcd->core_if, + hc->xfer_buff, + grxsts.b.bcnt); + + /* Update the HC fields for the next packet received. */ + hc->xfer_count += grxsts.b.bcnt; + hc->xfer_buff += grxsts.b.bcnt; + } + + case DWC_GRXSTS_PKTSTS_IN_XFER_COMP: + case DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR: + case DWC_GRXSTS_PKTSTS_CH_HALTED: + /* Handled in interrupt, just ignore data */ + break; + default: + DWC_ERROR("RX_STS_Q Interrupt: Unknown status %d\n", grxsts.b.pktsts); + break; + } + + return 1; +} + +/** This interrupt occurs when the non-periodic Tx FIFO is half-empty. More + * data packets may be written to the FIFO for OUT transfers. More requests + * may be written to the non-periodic request queue for IN transfers. This + * interrupt is enabled only in Slave mode. */ +int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd_t *dwc_otg_hcd) +{ + DWC_DEBUGPL(DBG_HCD, "--Non-Periodic TxFIFO Empty Interrupt--\n"); + dwc_otg_hcd_queue_transactions(dwc_otg_hcd, + DWC_OTG_TRANSACTION_NON_PERIODIC); + return 1; +} + +/** This interrupt occurs when the periodic Tx FIFO is half-empty. More data + * packets may be written to the FIFO for OUT transfers. More requests may be + * written to the periodic request queue for IN transfers. This interrupt is + * enabled only in Slave mode. */ +int32_t dwc_otg_hcd_handle_perio_tx_fifo_empty_intr(dwc_otg_hcd_t *dwc_otg_hcd) +{ + DWC_DEBUGPL(DBG_HCD, "--Periodic TxFIFO Empty Interrupt--\n"); + dwc_otg_hcd_queue_transactions(dwc_otg_hcd, + DWC_OTG_TRANSACTION_PERIODIC); + return 1; +} + +/** There are multiple conditions that can cause a port interrupt. This function + * determines which interrupt conditions have occurred and handles them + * appropriately. */ +int32_t dwc_otg_hcd_handle_port_intr(dwc_otg_hcd_t *dwc_otg_hcd) +{ + int retval = 0; + hprt0_data_t hprt0; + hprt0_data_t hprt0_modify; + + hprt0.d32 = dwc_read_reg32(dwc_otg_hcd->core_if->host_if->hprt0); + hprt0_modify.d32 = dwc_read_reg32(dwc_otg_hcd->core_if->host_if->hprt0); + + /* Clear appropriate bits in HPRT0 to clear the interrupt bit in + * GINTSTS */ + + hprt0_modify.b.prtena = 0; + hprt0_modify.b.prtconndet = 0; + hprt0_modify.b.prtenchng = 0; + hprt0_modify.b.prtovrcurrchng = 0; + + /* Port Connect Detected + * Set flag and clear if detected */ + if (hprt0.b.prtconndet) { + DWC_DEBUGPL(DBG_HCD, "--Port Interrupt HPRT0=0x%08x " + "Port Connect Detected--\n", hprt0.d32); + dwc_otg_hcd->flags.b.port_connect_status_change = 1; + dwc_otg_hcd->flags.b.port_connect_status = 1; + hprt0_modify.b.prtconndet = 1; + + /* B-Device has connected, Delete the connection timer. */ + del_timer( &dwc_otg_hcd->conn_timer ); + + /* The Hub driver asserts a reset when it sees port connect + * status change flag */ + retval |= 1; + } + + /* Port Enable Changed + * Clear if detected - Set internal flag if disabled */ + if (hprt0.b.prtenchng) { + DWC_DEBUGPL(DBG_HCD, " --Port Interrupt HPRT0=0x%08x " + "Port Enable Changed--\n", hprt0.d32); + hprt0_modify.b.prtenchng = 1; + if (hprt0.b.prtena == 1) { + int do_reset = 0; + dwc_otg_core_params_t *params = dwc_otg_hcd->core_if->core_params; + dwc_otg_core_global_regs_t *global_regs = dwc_otg_hcd->core_if->core_global_regs; + dwc_otg_host_if_t *host_if = dwc_otg_hcd->core_if->host_if; + + /* Check if we need to adjust the PHY clock speed for + * low power and adjust it */ + if (params->host_support_fs_ls_low_power) { + gusbcfg_data_t usbcfg; + + usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); + + if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED || + hprt0.b.prtspd == DWC_HPRT0_PRTSPD_FULL_SPEED) { + /* + * Low power + */ + hcfg_data_t hcfg; + if (usbcfg.b.phylpwrclksel == 0) { + /* Set PHY low power clock select for FS/LS devices */ + usbcfg.b.phylpwrclksel = 1; + dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); + do_reset = 1; + } + + hcfg.d32 = dwc_read_reg32(&host_if->host_global_regs->hcfg); + + if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED && + params->host_ls_low_power_phy_clk == + DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ) { + /* 6 MHZ */ + DWC_DEBUGPL(DBG_CIL, "FS_PHY programming HCFG to 6 MHz (Low Power)\n"); + if (hcfg.b.fslspclksel != DWC_HCFG_6_MHZ) { + hcfg.b.fslspclksel = DWC_HCFG_6_MHZ; + dwc_write_reg32(&host_if->host_global_regs->hcfg, + hcfg.d32); + do_reset = 1; + } + } else { + /* 48 MHZ */ + DWC_DEBUGPL(DBG_CIL, "FS_PHY programming HCFG to 48 MHz ()\n"); + if (hcfg.b.fslspclksel != DWC_HCFG_48_MHZ) { + hcfg.b.fslspclksel = DWC_HCFG_48_MHZ; + dwc_write_reg32(&host_if->host_global_regs->hcfg, + hcfg.d32); + do_reset = 1; + } + } + } else { + /* + * Not low power + */ + if (usbcfg.b.phylpwrclksel == 1) { + usbcfg.b.phylpwrclksel = 0; + dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); + do_reset = 1; + } + } + + if (do_reset) { + tasklet_schedule(dwc_otg_hcd->reset_tasklet); + } + } + + if (!do_reset) { + /* Port has been enabled set the reset change flag */ + dwc_otg_hcd->flags.b.port_reset_change = 1; + } + } else { + dwc_otg_hcd->flags.b.port_enable_change = 1; + } + retval |= 1; + } + + /** Overcurrent Change Interrupt */ + if (hprt0.b.prtovrcurrchng) { + DWC_DEBUGPL(DBG_HCD, " --Port Interrupt HPRT0=0x%08x " + "Port Overcurrent Changed--\n", hprt0.d32); + dwc_otg_hcd->flags.b.port_over_current_change = 1; + hprt0_modify.b.prtovrcurrchng = 1; + retval |= 1; + } + + /* Clear Port Interrupts */ + dwc_write_reg32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0_modify.d32); + + return retval; +} + +/** This interrupt indicates that one or more host channels has a pending + * interrupt. There are multiple conditions that can cause each host channel + * interrupt. This function determines which conditions have occurred for each + * host channel interrupt and handles them appropriately. */ +int32_t dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd_t *dwc_otg_hcd) +{ + int i; + int retval = 0; + haint_data_t haint; + + /* Clear appropriate bits in HCINTn to clear the interrupt bit in + * GINTSTS */ + + haint.d32 = dwc_otg_read_host_all_channels_intr(dwc_otg_hcd->core_if); + + for (i = 0; i < dwc_otg_hcd->core_if->core_params->host_channels; i++) { + if (haint.b2.chint & (1 << i)) { + retval |= dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd, i); + } + } + + return retval; +} + +/* Macro used to clear one channel interrupt */ +#define clear_hc_int(_hc_regs_, _intr_) \ +do { \ + hcint_data_t hcint_clear = {.d32 = 0}; \ + hcint_clear.b._intr_ = 1; \ + dwc_write_reg32(&(_hc_regs_)->hcint, hcint_clear.d32); \ +} while (0) + +/* + * Macro used to disable one channel interrupt. Channel interrupts are + * disabled when the channel is halted or released by the interrupt handler. + * There is no need to handle further interrupts of that type until the + * channel is re-assigned. In fact, subsequent handling may cause crashes + * because the channel structures are cleaned up when the channel is released. + */ +#define disable_hc_int(_hc_regs_, _intr_) \ +do { \ + hcintmsk_data_t hcintmsk = {.d32 = 0}; \ + hcintmsk.b._intr_ = 1; \ + dwc_modify_reg32(&(_hc_regs_)->hcintmsk, hcintmsk.d32, 0); \ +} while (0) + +/** + * Gets the actual length of a transfer after the transfer halts. _halt_status + * holds the reason for the halt. + * + * For IN transfers where halt_status is DWC_OTG_HC_XFER_COMPLETE, + * *short_read is set to 1 upon return if less than the requested + * number of bytes were transferred. Otherwise, *short_read is set to 0 upon + * return. short_read may also be NULL on entry, in which case it remains + * unchanged. + */ +static uint32_t get_actual_xfer_length(dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd, + dwc_otg_halt_status_e halt_status, + int *short_read) +{ + hctsiz_data_t hctsiz; + uint32_t length; + + if (short_read != NULL) { + *short_read = 0; + } + hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); + + if (halt_status == DWC_OTG_HC_XFER_COMPLETE) { + if (hc->ep_is_in) { + length = hc->xfer_len - hctsiz.b.xfersize; + if (short_read != NULL) { + *short_read = (hctsiz.b.xfersize != 0); + } + } else if (hc->qh->do_split) { + length = qtd->ssplit_out_xfer_count; + } else { + length = hc->xfer_len; + } + } else { + /* + * Must use the hctsiz.pktcnt field to determine how much data + * has been transferred. This field reflects the number of + * packets that have been transferred via the USB. This is + * always an integral number of packets if the transfer was + * halted before its normal completion. (Can't use the + * hctsiz.xfersize field because that reflects the number of + * bytes transferred via the AHB, not the USB). + */ + length = (hc->start_pkt_count - hctsiz.b.pktcnt) * hc->max_packet; + } + + return length; +} + +/** + * Updates the state of the URB after a Transfer Complete interrupt on the + * host channel. Updates the actual_length field of the URB based on the + * number of bytes transferred via the host channel. Sets the URB status + * if the data transfer is finished. + * + * @return 1 if the data transfer specified by the URB is completely finished, + * 0 otherwise. + */ +static int update_urb_state_xfer_comp(dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + struct urb *urb, + dwc_otg_qtd_t *qtd) +{ + int xfer_done = 0; + int short_read = 0; + + urb->actual_length += get_actual_xfer_length(hc, hc_regs, qtd, + DWC_OTG_HC_XFER_COMPLETE, + &short_read); + + if (short_read || urb->actual_length == urb->transfer_buffer_length) { + xfer_done = 1; + if (short_read && (urb->transfer_flags & URB_SHORT_NOT_OK)) { + urb->status = -EREMOTEIO; + } else { + urb->status = 0; + } + } + +#ifdef DEBUG + { + hctsiz_data_t hctsiz; + hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); + DWC_DEBUGPL(DBG_HCDV, "DWC_otg: %s: %s, channel %d\n", + __func__, (hc->ep_is_in ? "IN" : "OUT"), hc->hc_num); + DWC_DEBUGPL(DBG_HCDV, " hc->xfer_len %d\n", hc->xfer_len); + DWC_DEBUGPL(DBG_HCDV, " hctsiz.xfersize %d\n", hctsiz.b.xfersize); + DWC_DEBUGPL(DBG_HCDV, " urb->transfer_buffer_length %d\n", + urb->transfer_buffer_length); + DWC_DEBUGPL(DBG_HCDV, " urb->actual_length %d\n", urb->actual_length); + DWC_DEBUGPL(DBG_HCDV, " short_read %d, xfer_done %d\n", + short_read, xfer_done); + } +#endif + + return xfer_done; +} + +/* + * Save the starting data toggle for the next transfer. The data toggle is + * saved in the QH for non-control transfers and it's saved in the QTD for + * control transfers. + */ +static void save_data_toggle(dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + hctsiz_data_t hctsiz; + hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); + + if (hc->ep_type != DWC_OTG_EP_TYPE_CONTROL) { + dwc_otg_qh_t *qh = hc->qh; + if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) { + qh->data_toggle = DWC_OTG_HC_PID_DATA0; + } else { + qh->data_toggle = DWC_OTG_HC_PID_DATA1; + } + } else { + if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) { + qtd->data_toggle = DWC_OTG_HC_PID_DATA0; + } else { + qtd->data_toggle = DWC_OTG_HC_PID_DATA1; + } + } +} + +/** + * Frees the first QTD in the QH's list if free_qtd is 1. For non-periodic + * QHs, removes the QH from the active non-periodic schedule. If any QTDs are + * still linked to the QH, the QH is added to the end of the inactive + * non-periodic schedule. For periodic QHs, removes the QH from the periodic + * schedule if no more QTDs are linked to the QH. + */ +static void deactivate_qh(dwc_otg_hcd_t *hcd, + dwc_otg_qh_t *qh, + int free_qtd) +{ + int continue_split = 0; + dwc_otg_qtd_t *qtd; + + DWC_DEBUGPL(DBG_HCDV, " %s(%p,%p,%d)\n", __func__, hcd, qh, free_qtd); + + spin_lock(&hcd->lock); + qtd = list_entry(qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); + + if (qtd->complete_split) { + continue_split = 1; + } else if (qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_MID || + qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_END) { + continue_split = 1; + } + + if (free_qtd) { + dwc_otg_hcd_qtd_remove_and_free(hcd, qtd); + continue_split = 0; + } + + qh->channel = NULL; + qh->qtd_in_process = NULL; + spin_unlock(&hcd->lock); + dwc_otg_hcd_qh_deactivate(hcd, qh, continue_split); +} + +/** + * Updates the state of an Isochronous URB when the transfer is stopped for + * any reason. The fields of the current entry in the frame descriptor array + * are set based on the transfer state and the input _halt_status. Completes + * the Isochronous URB if all the URB frames have been completed. + * + * @return DWC_OTG_HC_XFER_COMPLETE if there are more frames remaining to be + * transferred in the URB. Otherwise return DWC_OTG_HC_XFER_URB_COMPLETE. + */ +static dwc_otg_halt_status_e +update_isoc_urb_state(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd, + dwc_otg_halt_status_e halt_status) +{ + struct urb *urb = qtd->urb; + dwc_otg_halt_status_e ret_val = halt_status; + struct usb_iso_packet_descriptor *frame_desc; + + frame_desc = &urb->iso_frame_desc[qtd->isoc_frame_index]; + switch (halt_status) { + case DWC_OTG_HC_XFER_COMPLETE: + frame_desc->status = 0; + frame_desc->actual_length = + get_actual_xfer_length(hc, hc_regs, qtd, + halt_status, NULL); + break; + case DWC_OTG_HC_XFER_FRAME_OVERRUN: + urb->error_count++; + if (hc->ep_is_in) { + frame_desc->status = -ENOSR; + } else { + frame_desc->status = -ECOMM; + } + frame_desc->actual_length = 0; + break; + case DWC_OTG_HC_XFER_BABBLE_ERR: + urb->error_count++; + frame_desc->status = -EOVERFLOW; + /* Don't need to update actual_length in this case. */ + break; + case DWC_OTG_HC_XFER_XACT_ERR: + urb->error_count++; + frame_desc->status = -EPROTO; + frame_desc->actual_length = + get_actual_xfer_length(hc, hc_regs, qtd, + halt_status, NULL); + default: + DWC_ERROR("%s: Unhandled _halt_status (%d)\n", __func__, + halt_status); + BUG(); + break; + } + + if (++qtd->isoc_frame_index == urb->number_of_packets) { + /* + * urb->status is not used for isoc transfers. + * The individual frame_desc statuses are used instead. + */ + dwc_otg_hcd_complete_urb(hcd, urb, 0); + ret_val = DWC_OTG_HC_XFER_URB_COMPLETE; + } else { + ret_val = DWC_OTG_HC_XFER_COMPLETE; + } + + return ret_val; +} + +/** + * Releases a host channel for use by other transfers. Attempts to select and + * queue more transactions since at least one host channel is available. + * + * @param hcd The HCD state structure. + * @param hc The host channel to release. + * @param qtd The QTD associated with the host channel. This QTD may be freed + * if the transfer is complete or an error has occurred. + * @param halt_status Reason the channel is being released. This status + * determines the actions taken by this function. + */ +static void release_channel(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_qtd_t *qtd, + dwc_otg_halt_status_e halt_status) +{ + dwc_otg_transaction_type_e tr_type; + int free_qtd; + + DWC_DEBUGPL(DBG_HCDV, " %s: channel %d, halt_status %d\n", + __func__, hc->hc_num, halt_status); + + switch (halt_status) { + case DWC_OTG_HC_XFER_URB_COMPLETE: + free_qtd = 1; + break; + case DWC_OTG_HC_XFER_AHB_ERR: + case DWC_OTG_HC_XFER_STALL: + case DWC_OTG_HC_XFER_BABBLE_ERR: + free_qtd = 1; + break; + case DWC_OTG_HC_XFER_XACT_ERR: + if (qtd->error_count >= 3) { + DWC_DEBUGPL(DBG_HCDV, " Complete URB with transaction error\n"); + free_qtd = 1; + qtd->urb->status = -EPROTO; + dwc_otg_hcd_complete_urb(hcd, qtd->urb, -EPROTO); + } else { + free_qtd = 0; + } + break; + case DWC_OTG_HC_XFER_URB_DEQUEUE: + /* + * The QTD has already been removed and the QH has been + * deactivated. Don't want to do anything except release the + * host channel and try to queue more transfers. + */ + goto cleanup; + case DWC_OTG_HC_XFER_NO_HALT_STATUS: + DWC_ERROR("%s: No halt_status, channel %d\n", __func__, hc->hc_num); + free_qtd = 0; + break; + default: + free_qtd = 0; + break; + } + + deactivate_qh(hcd, hc->qh, free_qtd); + + cleanup: + /* + * Release the host channel for use by other transfers. The cleanup + * function clears the channel interrupt enables and conditions, so + * there's no need to clear the Channel Halted interrupt separately. + */ + dwc_otg_hc_cleanup(hcd->core_if, hc); + list_add_tail(&hc->hc_list_entry, &hcd->free_hc_list); + + switch (hc->ep_type) { + case DWC_OTG_EP_TYPE_CONTROL: + case DWC_OTG_EP_TYPE_BULK: + hcd->non_periodic_channels--; + break; + + default: + /* + * Don't release reservations for periodic channels here. + * That's done when a periodic transfer is descheduled (i.e. + * when the QH is removed from the periodic schedule). + */ + break; + } + + /* Try to queue more transfers now that there's a free channel. */ + tr_type = dwc_otg_hcd_select_transactions(hcd); + if (tr_type != DWC_OTG_TRANSACTION_NONE) { + dwc_otg_hcd_queue_transactions(hcd, tr_type); + } +} + +/** + * Halts a host channel. If the channel cannot be halted immediately because + * the request queue is full, this function ensures that the FIFO empty + * interrupt for the appropriate queue is enabled so that the halt request can + * be queued when there is space in the request queue. + * + * This function may also be called in DMA mode. In that case, the channel is + * simply released since the core always halts the channel automatically in + * DMA mode. + */ +static void halt_channel(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_qtd_t *qtd, + dwc_otg_halt_status_e halt_status) +{ + if (hcd->core_if->dma_enable) { + release_channel(hcd, hc, qtd, halt_status); + return; + } + + /* Slave mode processing... */ + dwc_otg_hc_halt(hcd->core_if, hc, halt_status); + + if (hc->halt_on_queue) { + gintmsk_data_t gintmsk = {.d32 = 0}; + dwc_otg_core_global_regs_t *global_regs; + global_regs = hcd->core_if->core_global_regs; + + if (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL || + hc->ep_type == DWC_OTG_EP_TYPE_BULK) { + /* + * Make sure the Non-periodic Tx FIFO empty interrupt + * is enabled so that the non-periodic schedule will + * be processed. + */ + gintmsk.b.nptxfempty = 1; + dwc_modify_reg32(&global_regs->gintmsk, 0, gintmsk.d32); + } else { + /* + * Move the QH from the periodic queued schedule to + * the periodic assigned schedule. This allows the + * halt to be queued when the periodic schedule is + * processed. + */ + list_move(&hc->qh->qh_list_entry, + &hcd->periodic_sched_assigned); + + /* + * Make sure the Periodic Tx FIFO Empty interrupt is + * enabled so that the periodic schedule will be + * processed. + */ + gintmsk.b.ptxfempty = 1; + dwc_modify_reg32(&global_regs->gintmsk, 0, gintmsk.d32); + } + } +} + +/** + * Performs common cleanup for non-periodic transfers after a Transfer + * Complete interrupt. This function should be called after any endpoint type + * specific handling is finished to release the host channel. + */ +static void complete_non_periodic_xfer(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd, + dwc_otg_halt_status_e halt_status) +{ + hcint_data_t hcint; + + qtd->error_count = 0; + + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + if (hcint.b.nyet) { + /* + * Got a NYET on the last transaction of the transfer. This + * means that the endpoint should be in the PING state at the + * beginning of the next transfer. + */ + hc->qh->ping_state = 1; + clear_hc_int(hc_regs, nyet); + } + + /* + * Always halt and release the host channel to make it available for + * more transfers. There may still be more phases for a control + * transfer or more data packets for a bulk transfer at this point, + * but the host channel is still halted. A channel will be reassigned + * to the transfer when the non-periodic schedule is processed after + * the channel is released. This allows transactions to be queued + * properly via dwc_otg_hcd_queue_transactions, which also enables the + * Tx FIFO Empty interrupt if necessary. + */ + if (hc->ep_is_in) { + /* + * IN transfers in Slave mode require an explicit disable to + * halt the channel. (In DMA mode, this call simply releases + * the channel.) + */ + halt_channel(hcd, hc, qtd, halt_status); + } else { + /* + * The channel is automatically disabled by the core for OUT + * transfers in Slave mode. + */ + release_channel(hcd, hc, qtd, halt_status); + } +} + +/** + * Performs common cleanup for periodic transfers after a Transfer Complete + * interrupt. This function should be called after any endpoint type specific + * handling is finished to release the host channel. + */ +static void complete_periodic_xfer(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd, + dwc_otg_halt_status_e halt_status) +{ + hctsiz_data_t hctsiz; + qtd->error_count = 0; + + hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); + if (!hc->ep_is_in || hctsiz.b.pktcnt == 0) { + /* Core halts channel in these cases. */ + release_channel(hcd, hc, qtd, halt_status); + } else { + /* Flush any outstanding requests from the Tx queue. */ + halt_channel(hcd, hc, qtd, halt_status); + } +} + +/** + * Handles a host channel Transfer Complete interrupt. This handler may be + * called in either DMA mode or Slave mode. + */ +static int32_t handle_hc_xfercomp_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + int urb_xfer_done; + dwc_otg_halt_status_e halt_status = DWC_OTG_HC_XFER_COMPLETE; + struct urb *urb = qtd->urb; + int pipe_type = usb_pipetype(urb->pipe); + + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "Transfer Complete--\n", hc->hc_num); + + /* + * Handle xfer complete on CSPLIT. + */ + if (hc->qh->do_split) { + qtd->complete_split = 0; + } + + /* Update the QTD and URB states. */ + switch (pipe_type) { + case PIPE_CONTROL: + switch (qtd->control_phase) { + case DWC_OTG_CONTROL_SETUP: + if (urb->transfer_buffer_length > 0) { + qtd->control_phase = DWC_OTG_CONTROL_DATA; + } else { + qtd->control_phase = DWC_OTG_CONTROL_STATUS; + } + DWC_DEBUGPL(DBG_HCDV, " Control setup transaction done\n"); + halt_status = DWC_OTG_HC_XFER_COMPLETE; + break; + case DWC_OTG_CONTROL_DATA: { + urb_xfer_done = update_urb_state_xfer_comp(hc, hc_regs, urb, qtd); + if (urb_xfer_done) { + qtd->control_phase = DWC_OTG_CONTROL_STATUS; + DWC_DEBUGPL(DBG_HCDV, " Control data transfer done\n"); + } else { + save_data_toggle(hc, hc_regs, qtd); + } + halt_status = DWC_OTG_HC_XFER_COMPLETE; + break; + } + case DWC_OTG_CONTROL_STATUS: + DWC_DEBUGPL(DBG_HCDV, " Control transfer complete\n"); + if (urb->status == -EINPROGRESS) { + urb->status = 0; + } + dwc_otg_hcd_complete_urb(hcd, urb, urb->status); + halt_status = DWC_OTG_HC_XFER_URB_COMPLETE; + break; + } + + complete_non_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status); + break; + case PIPE_BULK: + DWC_DEBUGPL(DBG_HCDV, " Bulk transfer complete\n"); + urb_xfer_done = update_urb_state_xfer_comp(hc, hc_regs, urb, qtd); + if (urb_xfer_done) { + dwc_otg_hcd_complete_urb(hcd, urb, urb->status); + halt_status = DWC_OTG_HC_XFER_URB_COMPLETE; + } else { + halt_status = DWC_OTG_HC_XFER_COMPLETE; + } + + save_data_toggle(hc, hc_regs, qtd); + complete_non_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status); + break; + case PIPE_INTERRUPT: + DWC_DEBUGPL(DBG_HCDV, " Interrupt transfer complete\n"); + update_urb_state_xfer_comp(hc, hc_regs, urb, qtd); + + /* + * Interrupt URB is done on the first transfer complete + * interrupt. + */ + dwc_otg_hcd_complete_urb(hcd, urb, urb->status); + save_data_toggle(hc, hc_regs, qtd); + complete_periodic_xfer(hcd, hc, hc_regs, qtd, + DWC_OTG_HC_XFER_URB_COMPLETE); + break; + case PIPE_ISOCHRONOUS: + DWC_DEBUGPL(DBG_HCDV, " Isochronous transfer complete\n"); + if (qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_ALL) { + halt_status = update_isoc_urb_state(hcd, hc, hc_regs, qtd, + DWC_OTG_HC_XFER_COMPLETE); + } + complete_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status); + break; + } + + disable_hc_int(hc_regs, xfercompl); + + return 1; +} + +/** + * Handles a host channel STALL interrupt. This handler may be called in + * either DMA mode or Slave mode. + */ +static int32_t handle_hc_stall_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + struct urb *urb = qtd->urb; + int pipe_type = usb_pipetype(urb->pipe); + + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "STALL Received--\n", hc->hc_num); + + if (pipe_type == PIPE_CONTROL) { + dwc_otg_hcd_complete_urb(hcd, urb, -EPIPE); + } + + if (pipe_type == PIPE_BULK || pipe_type == PIPE_INTERRUPT) { + dwc_otg_hcd_complete_urb(hcd, urb, -EPIPE); + /* + * USB protocol requires resetting the data toggle for bulk + * and interrupt endpoints when a CLEAR_FEATURE(ENDPOINT_HALT) + * setup command is issued to the endpoint. Anticipate the + * CLEAR_FEATURE command since a STALL has occurred and reset + * the data toggle now. + */ + hc->qh->data_toggle = 0; + } + + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_STALL); + + disable_hc_int(hc_regs, stall); + + return 1; +} + +/* + * Updates the state of the URB when a transfer has been stopped due to an + * abnormal condition before the transfer completes. Modifies the + * actual_length field of the URB to reflect the number of bytes that have + * actually been transferred via the host channel. + */ +static void update_urb_state_xfer_intr(dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + struct urb *urb, + dwc_otg_qtd_t *qtd, + dwc_otg_halt_status_e halt_status) +{ + uint32_t bytes_transferred = get_actual_xfer_length(hc, hc_regs, qtd, + halt_status, NULL); + urb->actual_length += bytes_transferred; + +#ifdef DEBUG + { + hctsiz_data_t hctsiz; + hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); + DWC_DEBUGPL(DBG_HCDV, "DWC_otg: %s: %s, channel %d\n", + __func__, (hc->ep_is_in ? "IN" : "OUT"), hc->hc_num); + DWC_DEBUGPL(DBG_HCDV, " hc->start_pkt_count %d\n", hc->start_pkt_count); + DWC_DEBUGPL(DBG_HCDV, " hctsiz.pktcnt %d\n", hctsiz.b.pktcnt); + DWC_DEBUGPL(DBG_HCDV, " hc->max_packet %d\n", hc->max_packet); + DWC_DEBUGPL(DBG_HCDV, " bytes_transferred %d\n", bytes_transferred); + DWC_DEBUGPL(DBG_HCDV, " urb->actual_length %d\n", urb->actual_length); + DWC_DEBUGPL(DBG_HCDV, " urb->transfer_buffer_length %d\n", + urb->transfer_buffer_length); + } +#endif +} + +/** + * Handles a host channel NAK interrupt. This handler may be called in either + * DMA mode or Slave mode. + */ +static int32_t handle_hc_nak_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "NAK Received--\n", hc->hc_num); + + /* + * Handle NAK for IN/OUT SSPLIT/CSPLIT transfers, bulk, control, and + * interrupt. Re-start the SSPLIT transfer. + */ + if (hc->do_split) { + if (hc->complete_split) { + qtd->error_count = 0; + } + qtd->complete_split = 0; + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK); + goto handle_nak_done; + } + + switch (usb_pipetype(qtd->urb->pipe)) { + case PIPE_CONTROL: + case PIPE_BULK: + if (hcd->core_if->dma_enable && hc->ep_is_in) { + /* + * NAK interrupts are enabled on bulk/control IN + * transfers in DMA mode for the sole purpose of + * resetting the error count after a transaction error + * occurs. The core will continue transferring data. + */ + qtd->error_count = 0; + goto handle_nak_done; + } + + /* + * NAK interrupts normally occur during OUT transfers in DMA + * or Slave mode. For IN transfers, more requests will be + * queued as request queue space is available. + */ + qtd->error_count = 0; + + if (!hc->qh->ping_state) { + update_urb_state_xfer_intr(hc, hc_regs, qtd->urb, + qtd, DWC_OTG_HC_XFER_NAK); + save_data_toggle(hc, hc_regs, qtd); + if (qtd->urb->dev->speed == USB_SPEED_HIGH) { + hc->qh->ping_state = 1; + } + } + + /* + * Halt the channel so the transfer can be re-started from + * the appropriate point or the PING protocol will + * start/continue. + */ + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK); + break; + case PIPE_INTERRUPT: + qtd->error_count = 0; + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK); + break; + case PIPE_ISOCHRONOUS: + /* Should never get called for isochronous transfers. */ + BUG(); + break; + } + + handle_nak_done: + disable_hc_int(hc_regs, nak); + + return 1; +} + +/** + * Handles a host channel ACK interrupt. This interrupt is enabled when + * performing the PING protocol in Slave mode, when errors occur during + * either Slave mode or DMA mode, and during Start Split transactions. + */ +static int32_t handle_hc_ack_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "ACK Received--\n", hc->hc_num); + + if (hc->do_split) { + /* + * Handle ACK on SSPLIT. + * ACK should not occur in CSPLIT. + */ + if (!hc->ep_is_in && hc->data_pid_start != DWC_OTG_HC_PID_SETUP) { + qtd->ssplit_out_xfer_count = hc->xfer_len; + } + if (!(hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in)) { + /* Don't need complete for isochronous out transfers. */ + qtd->complete_split = 1; + } + + /* ISOC OUT */ + if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in) { + switch (hc->xact_pos) { + case DWC_HCSPLIT_XACTPOS_ALL: + break; + case DWC_HCSPLIT_XACTPOS_END: + qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_ALL; + qtd->isoc_split_offset = 0; + break; + case DWC_HCSPLIT_XACTPOS_BEGIN: + case DWC_HCSPLIT_XACTPOS_MID: + /* + * For BEGIN or MID, calculate the length for + * the next microframe to determine the correct + * SSPLIT token, either MID or END. + */ + { + struct usb_iso_packet_descriptor *frame_desc; + + frame_desc = &qtd->urb->iso_frame_desc[qtd->isoc_frame_index]; + qtd->isoc_split_offset += 188; + + if ((frame_desc->length - qtd->isoc_split_offset) <= 188) { + qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_END; + } else { + qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_MID; + } + + } + break; + } + } else { + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_ACK); + } + } else { + qtd->error_count = 0; + + if (hc->qh->ping_state) { + hc->qh->ping_state = 0; + /* + * Halt the channel so the transfer can be re-started + * from the appropriate point. This only happens in + * Slave mode. In DMA mode, the ping_state is cleared + * when the transfer is started because the core + * automatically executes the PING, then the transfer. + */ + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_ACK); + } + } + + /* + * If the ACK occurred when _not_ in the PING state, let the channel + * continue transferring data after clearing the error count. + */ + + disable_hc_int(hc_regs, ack); + + return 1; +} + +/** + * Handles a host channel NYET interrupt. This interrupt should only occur on + * Bulk and Control OUT endpoints and for complete split transactions. If a + * NYET occurs at the same time as a Transfer Complete interrupt, it is + * handled in the xfercomp interrupt handler, not here. This handler may be + * called in either DMA mode or Slave mode. + */ +static int32_t handle_hc_nyet_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "NYET Received--\n", hc->hc_num); + + /* + * NYET on CSPLIT + * re-do the CSPLIT immediately on non-periodic + */ + if (hc->do_split && hc->complete_split) { + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + int frnum = dwc_otg_hcd_get_frame_number(dwc_otg_hcd_to_hcd(hcd)); + + if (dwc_full_frame_num(frnum) != + dwc_full_frame_num(hc->qh->sched_frame)) { + /* + * No longer in the same full speed frame. + * Treat this as a transaction error. + */ +#if 0 + /** @todo Fix system performance so this can + * be treated as an error. Right now complete + * splits cannot be scheduled precisely enough + * due to other system activity, so this error + * occurs regularly in Slave mode. + */ + qtd->error_count++; +#endif + qtd->complete_split = 0; + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); + /** @todo add support for isoc release */ + goto handle_nyet_done; + } + } + + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NYET); + goto handle_nyet_done; + } + + hc->qh->ping_state = 1; + qtd->error_count = 0; + + update_urb_state_xfer_intr(hc, hc_regs, qtd->urb, qtd, + DWC_OTG_HC_XFER_NYET); + save_data_toggle(hc, hc_regs, qtd); + + /* + * Halt the channel and re-start the transfer so the PING + * protocol will start. + */ + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NYET); + +handle_nyet_done: + disable_hc_int(hc_regs, nyet); + return 1; +} + +/** + * Handles a host channel babble interrupt. This handler may be called in + * either DMA mode or Slave mode. + */ +static int32_t handle_hc_babble_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "Babble Error--\n", hc->hc_num); + if (hc->ep_type != DWC_OTG_EP_TYPE_ISOC) { + dwc_otg_hcd_complete_urb(hcd, qtd->urb, -EOVERFLOW); + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_BABBLE_ERR); + } else { + dwc_otg_halt_status_e halt_status; + halt_status = update_isoc_urb_state(hcd, hc, hc_regs, qtd, + DWC_OTG_HC_XFER_BABBLE_ERR); + halt_channel(hcd, hc, qtd, halt_status); + } + disable_hc_int(hc_regs, bblerr); + return 1; +} + +/** + * Handles a host channel AHB error interrupt. This handler is only called in + * DMA mode. + */ +static int32_t handle_hc_ahberr_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + hcchar_data_t hcchar; + hcsplt_data_t hcsplt; + hctsiz_data_t hctsiz; + uint32_t hcdma; + struct urb *urb = qtd->urb; + + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "AHB Error--\n", hc->hc_num); + + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hcsplt.d32 = dwc_read_reg32(&hc_regs->hcsplt); + hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); + hcdma = dwc_read_reg32(&hc_regs->hcdma); + + DWC_ERROR("AHB ERROR, Channel %d\n", hc->hc_num); + DWC_ERROR(" hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32, hcsplt.d32); + DWC_ERROR(" hctsiz 0x%08x, hcdma 0x%08x\n", hctsiz.d32, hcdma); + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Enqueue\n"); + DWC_ERROR(" Device address: %d\n", usb_pipedevice(urb->pipe)); + DWC_ERROR(" Endpoint: %d, %s\n", usb_pipeendpoint(urb->pipe), + (usb_pipein(urb->pipe) ? "IN" : "OUT")); + DWC_ERROR(" Endpoint type: %s\n", + ({char *pipetype; + switch (usb_pipetype(urb->pipe)) { + case PIPE_CONTROL: pipetype = "CONTROL"; break; + case PIPE_BULK: pipetype = "BULK"; break; + case PIPE_INTERRUPT: pipetype = "INTERRUPT"; break; + case PIPE_ISOCHRONOUS: pipetype = "ISOCHRONOUS"; break; + default: pipetype = "UNKNOWN"; break; + }; pipetype;})); + DWC_ERROR(" Speed: %s\n", + ({char *speed; + switch (urb->dev->speed) { + case USB_SPEED_HIGH: speed = "HIGH"; break; + case USB_SPEED_FULL: speed = "FULL"; break; + case USB_SPEED_LOW: speed = "LOW"; break; + default: speed = "UNKNOWN"; break; + }; speed;})); + DWC_ERROR(" Max packet size: %d\n", + usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))); + DWC_ERROR(" Data buffer length: %d\n", urb->transfer_buffer_length); + DWC_ERROR(" Transfer buffer: %p, Transfer DMA: %p\n", + urb->transfer_buffer, (void *)urb->transfer_dma); + DWC_ERROR(" Setup buffer: %p, Setup DMA: %p\n", + urb->setup_packet, (void *)urb->setup_dma); + DWC_ERROR(" Interval: %d\n", urb->interval); + + dwc_otg_hcd_complete_urb(hcd, urb, -EIO); + + /* + * Force a channel halt. Don't call halt_channel because that won't + * write to the HCCHARn register in DMA mode to force the halt. + */ + dwc_otg_hc_halt(hcd->core_if, hc, DWC_OTG_HC_XFER_AHB_ERR); + + disable_hc_int(hc_regs, ahberr); + return 1; +} + +/** + * Handles a host channel transaction error interrupt. This handler may be + * called in either DMA mode or Slave mode. + */ +static int32_t handle_hc_xacterr_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "Transaction Error--\n", hc->hc_num); + + switch (usb_pipetype(qtd->urb->pipe)) { + case PIPE_CONTROL: + case PIPE_BULK: + qtd->error_count++; + if (!hc->qh->ping_state) { + update_urb_state_xfer_intr(hc, hc_regs, qtd->urb, + qtd, DWC_OTG_HC_XFER_XACT_ERR); + save_data_toggle(hc, hc_regs, qtd); + if (!hc->ep_is_in && qtd->urb->dev->speed == USB_SPEED_HIGH) { + hc->qh->ping_state = 1; + } + } + + /* + * Halt the channel so the transfer can be re-started from + * the appropriate point or the PING protocol will start. + */ + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); + break; + case PIPE_INTERRUPT: + qtd->error_count++; + if (hc->do_split && hc->complete_split) { + qtd->complete_split = 0; + } + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); + break; + case PIPE_ISOCHRONOUS: + { + dwc_otg_halt_status_e halt_status; + halt_status = update_isoc_urb_state(hcd, hc, hc_regs, qtd, + DWC_OTG_HC_XFER_XACT_ERR); + + halt_channel(hcd, hc, qtd, halt_status); + } + break; + } + + disable_hc_int(hc_regs, xacterr); + + return 1; +} + +/** + * Handles a host channel frame overrun interrupt. This handler may be called + * in either DMA mode or Slave mode. + */ +static int32_t handle_hc_frmovrun_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "Frame Overrun--\n", hc->hc_num); + + switch (usb_pipetype(qtd->urb->pipe)) { + case PIPE_CONTROL: + case PIPE_BULK: + break; + case PIPE_INTERRUPT: + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_FRAME_OVERRUN); + break; + case PIPE_ISOCHRONOUS: + { + dwc_otg_halt_status_e halt_status; + halt_status = update_isoc_urb_state(hcd, hc, hc_regs, qtd, + DWC_OTG_HC_XFER_FRAME_OVERRUN); + + halt_channel(hcd, hc, qtd, halt_status); + } + break; + } + + disable_hc_int(hc_regs, frmovrun); + + return 1; +} + +/** + * Handles a host channel data toggle error interrupt. This handler may be + * called in either DMA mode or Slave mode. + */ +static int32_t handle_hc_datatglerr_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "Data Toggle Error--\n", hc->hc_num); + + if (hc->ep_is_in) { + qtd->error_count = 0; + } else { + DWC_ERROR("Data Toggle Error on OUT transfer," + "channel %d\n", hc->hc_num); + } + + disable_hc_int(hc_regs, datatglerr); + + return 1; +} + +#ifdef DEBUG +/** + * This function is for debug only. It checks that a valid halt status is set + * and that HCCHARn.chdis is clear. If there's a problem, corrective action is + * taken and a warning is issued. + * @return 1 if halt status is ok, 0 otherwise. + */ +static inline int halt_status_ok(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + hcchar_data_t hcchar; + hctsiz_data_t hctsiz; + hcint_data_t hcint; + hcintmsk_data_t hcintmsk; + hcsplt_data_t hcsplt; + + if (hc->halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS) { + /* + * This code is here only as a check. This condition should + * never happen. Ignore the halt if it does occur. + */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + hcintmsk.d32 = dwc_read_reg32(&hc_regs->hcintmsk); + hcsplt.d32 = dwc_read_reg32(&hc_regs->hcsplt); + DWC_WARN("%s: hc->halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS, " + "channel %d, hcchar 0x%08x, hctsiz 0x%08x, " + "hcint 0x%08x, hcintmsk 0x%08x, " + "hcsplt 0x%08x, qtd->complete_split %d\n", + __func__, hc->hc_num, hcchar.d32, hctsiz.d32, + hcint.d32, hcintmsk.d32, + hcsplt.d32, qtd->complete_split); + + DWC_WARN("%s: no halt status, channel %d, ignoring interrupt\n", + __func__, hc->hc_num); + DWC_WARN("\n"); + clear_hc_int(hc_regs, chhltd); + return 0; + } + + /* + * This code is here only as a check. hcchar.chdis should + * never be set when the halt interrupt occurs. Halt the + * channel again if it does occur. + */ + hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); + if (hcchar.b.chdis) { + DWC_WARN("%s: hcchar.chdis set unexpectedly, " + "hcchar 0x%08x, trying to halt again\n", + __func__, hcchar.d32); + clear_hc_int(hc_regs, chhltd); + hc->halt_pending = 0; + halt_channel(hcd, hc, qtd, hc->halt_status); + return 0; + } + + return 1; +} +#endif + +/** + * Handles a host Channel Halted interrupt in DMA mode. This handler + * determines the reason the channel halted and proceeds accordingly. + */ +static void handle_hc_chhltd_intr_dma(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + hcint_data_t hcint; + hcintmsk_data_t hcintmsk; + int out_nak_enh = 0; + + /* For core with OUT NAK enhancement, the flow for high- + * speed CONTROL/BULK OUT is handled a little differently. + */ + if (hcd->core_if->snpsid >= 0x4F54271A) { + if (hc->speed == DWC_OTG_EP_SPEED_HIGH && !hc->ep_is_in && + (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL || + hc->ep_type == DWC_OTG_EP_TYPE_BULK)) { + DWC_DEBUGPL(DBG_HCD, "OUT NAK enhancement enabled\n"); + out_nak_enh = 1; + } else { + DWC_DEBUGPL(DBG_HCD, "OUT NAK enhancement disabled, not HS Ctrl/Bulk OUT EP\n"); + } + } else { + DWC_DEBUGPL(DBG_HCD, "OUT NAK enhancement disabled, no core support\n"); + } + + if (hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE || + hc->halt_status == DWC_OTG_HC_XFER_AHB_ERR) { + /* + * Just release the channel. A dequeue can happen on a + * transfer timeout. In the case of an AHB Error, the channel + * was forced to halt because there's no way to gracefully + * recover. + */ + release_channel(hcd, hc, qtd, hc->halt_status); + return; + } + + /* Read the HCINTn register to determine the cause for the halt. */ + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + hcintmsk.d32 = dwc_read_reg32(&hc_regs->hcintmsk); + + if (hcint.b.xfercomp) { + /** @todo This is here because of a possible hardware bug. Spec + * says that on SPLIT-ISOC OUT transfers in DMA mode that a HALT + * interrupt w/ACK bit set should occur, but I only see the + * XFERCOMP bit, even with it masked out. This is a workaround + * for that behavior. Should fix this when hardware is fixed. + */ + if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in) { + handle_hc_ack_intr(hcd, hc, hc_regs, qtd); + } + handle_hc_xfercomp_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.stall) { + handle_hc_stall_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.xacterr) { + if (out_nak_enh) { + if (hcint.b.nyet || hcint.b.nak || hcint.b.ack) { + printk(KERN_DEBUG "XactErr with NYET/NAK/ACK\n"); + qtd->error_count = 0; + } else { + printk(KERN_DEBUG "XactErr without NYET/NAK/ACK\n"); + } + } + + /* + * Must handle xacterr before nak or ack. Could get a xacterr + * at the same time as either of these on a BULK/CONTROL OUT + * that started with a PING. The xacterr takes precedence. + */ + handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd); + } else if (!out_nak_enh) { + if (hcint.b.nyet) { + /* + * Must handle nyet before nak or ack. Could get a nyet at the + * same time as either of those on a BULK/CONTROL OUT that + * started with a PING. The nyet takes precedence. + */ + handle_hc_nyet_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.bblerr) { + handle_hc_babble_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.frmovrun) { + handle_hc_frmovrun_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.nak && !hcintmsk.b.nak) { + /* + * If nak is not masked, it's because a non-split IN transfer + * is in an error state. In that case, the nak is handled by + * the nak interrupt handler, not here. Handle nak here for + * BULK/CONTROL OUT transfers, which halt on a NAK to allow + * rewinding the buffer pointer. + */ + handle_hc_nak_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.ack && !hcintmsk.b.ack) { + /* + * If ack is not masked, it's because a non-split IN transfer + * is in an error state. In that case, the ack is handled by + * the ack interrupt handler, not here. Handle ack here for + * split transfers. Start splits halt on ACK. + */ + handle_hc_ack_intr(hcd, hc, hc_regs, qtd); + } else { + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + /* + * A periodic transfer halted with no other channel + * interrupts set. Assume it was halted by the core + * because it could not be completed in its scheduled + * (micro)frame. + */ +#ifdef DEBUG + DWC_PRINT("%s: Halt channel %d (assume incomplete periodic transfer)\n", + __func__, hc->hc_num); +#endif + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE); + } else { + DWC_ERROR("%s: Channel %d, DMA Mode -- ChHltd set, but reason " + "for halting is unknown, hcint 0x%08x, intsts 0x%08x\n", + __func__, hc->hc_num, hcint.d32, + dwc_read_reg32(&hcd->core_if->core_global_regs->gintsts)); + } + } + } else { + printk(KERN_DEBUG "NYET/NAK/ACK/other in non-error case, 0x%08x\n", hcint.d32); + } +} + +/** + * Handles a host channel Channel Halted interrupt. + * + * In slave mode, this handler is called only when the driver specifically + * requests a halt. This occurs during handling other host channel interrupts + * (e.g. nak, xacterr, stall, nyet, etc.). + * + * In DMA mode, this is the interrupt that occurs when the core has finished + * processing a transfer on a channel. Other host channel interrupts (except + * ahberr) are disabled in DMA mode. + */ +static int32_t handle_hc_chhltd_intr(dwc_otg_hcd_t *hcd, + dwc_hc_t *hc, + dwc_otg_hc_regs_t *hc_regs, + dwc_otg_qtd_t *qtd) +{ + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "Channel Halted--\n", hc->hc_num); + + if (hcd->core_if->dma_enable) { + handle_hc_chhltd_intr_dma(hcd, hc, hc_regs, qtd); + } else { +#ifdef DEBUG + if (!halt_status_ok(hcd, hc, hc_regs, qtd)) { + return 1; + } +#endif + release_channel(hcd, hc, qtd, hc->halt_status); + } + + return 1; +} + +/** Handles interrupt for a specific Host Channel */ +int32_t dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd_t *dwc_otg_hcd, uint32_t num) +{ + int retval = 0; + hcint_data_t hcint; + hcintmsk_data_t hcintmsk; + dwc_hc_t *hc; + dwc_otg_hc_regs_t *hc_regs; + dwc_otg_qtd_t *qtd; + + DWC_DEBUGPL(DBG_HCDV, "--Host Channel Interrupt--, Channel %d\n", num); + + hc = dwc_otg_hcd->hc_ptr_array[num]; + hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[num]; + qtd = list_entry(hc->qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); + + hcint.d32 = dwc_read_reg32(&hc_regs->hcint); + hcintmsk.d32 = dwc_read_reg32(&hc_regs->hcintmsk); + DWC_DEBUGPL(DBG_HCDV, " hcint 0x%08x, hcintmsk 0x%08x, hcint&hcintmsk 0x%08x\n", + hcint.d32, hcintmsk.d32, (hcint.d32 & hcintmsk.d32)); + hcint.d32 = hcint.d32 & hcintmsk.d32; + + if (!dwc_otg_hcd->core_if->dma_enable) { + if (hcint.b.chhltd && hcint.d32 != 0x2) { + hcint.b.chhltd = 0; + } + } + + if (hcint.b.xfercomp) { + retval |= handle_hc_xfercomp_intr(dwc_otg_hcd, hc, hc_regs, qtd); + /* + * If NYET occurred at same time as Xfer Complete, the NYET is + * handled by the Xfer Complete interrupt handler. Don't want + * to call the NYET interrupt handler in this case. + */ + hcint.b.nyet = 0; + } + if (hcint.b.chhltd) { + retval |= handle_hc_chhltd_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.ahberr) { + retval |= handle_hc_ahberr_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.stall) { + retval |= handle_hc_stall_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.nak) { + retval |= handle_hc_nak_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.ack) { + retval |= handle_hc_ack_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.nyet) { + retval |= handle_hc_nyet_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.xacterr) { + retval |= handle_hc_xacterr_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.bblerr) { + retval |= handle_hc_babble_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.frmovrun) { + retval |= handle_hc_frmovrun_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.datatglerr) { + retval |= handle_hc_datatglerr_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + + return retval; +} + +#endif /* DWC_DEVICE_ONLY */ diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd_queue.c b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd_queue.c new file mode 100644 index 0000000000..7395d1dcfc --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd_queue.c @@ -0,0 +1,794 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_queue.c $ + * $Revision: #33 $ + * $Date: 2008/07/15 $ + * $Change: 1064918 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY + +/** + * @file + * + * This file contains the functions to manage Queue Heads and Queue + * Transfer Descriptors. + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/string.h> +#include <linux/version.h> + +#include <mach/irqs.h> + +#include "otg_driver.h" +#include "otg_hcd.h" +#include "otg_regs.h" + +/** + * This function allocates and initializes a QH. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param[in] urb Holds the information about the device/endpoint that we need + * to initialize the QH. + * + * @return Returns pointer to the newly allocated QH, or NULL on error. */ +dwc_otg_qh_t *dwc_otg_hcd_qh_create (dwc_otg_hcd_t *hcd, struct urb *urb) +{ + dwc_otg_qh_t *qh; + + /* Allocate memory */ + /** @todo add memflags argument */ + qh = dwc_otg_hcd_qh_alloc (); + if (qh == NULL) { + return NULL; + } + + dwc_otg_hcd_qh_init (hcd, qh, urb); + return qh; +} + +/** Free each QTD in the QH's QTD-list then free the QH. QH should already be + * removed from a list. QTD list should already be empty if called from URB + * Dequeue. + * + * @param[in] hcd HCD instance. + * @param[in] qh The QH to free. + */ +void dwc_otg_hcd_qh_free (dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + dwc_otg_qtd_t *qtd; + struct list_head *pos; + //unsigned long flags; + + /* Free each QTD in the QTD list */ + +#ifdef CONFIG_SMP + //the spinlock is locked before this function get called, + //but in case the lock is needed, the check function is preserved + + //but in non-SMP mode, all spinlock is lockable. + //don't do the test in non-SMP mode + + if(spin_trylock(&hcd->lock)) { + printk("%s: It is not supposed to be lockable!!\n",__func__); + BUG(); + } +#endif +// SPIN_LOCK_IRQSAVE(&hcd->lock, flags) + for (pos = qh->qtd_list.next; + pos != &qh->qtd_list; + pos = qh->qtd_list.next) + { + list_del (pos); + qtd = dwc_list_to_qtd (pos); + dwc_otg_hcd_qtd_free (qtd); + } +// SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags) + + kfree (qh); + return; +} + +/** Initializes a QH structure. + * + * @param[in] hcd The HCD state structure for the DWC OTG controller. + * @param[in] qh The QH to init. + * @param[in] urb Holds the information about the device/endpoint that we need + * to initialize the QH. */ +#define SCHEDULE_SLOP 10 +void dwc_otg_hcd_qh_init(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, struct urb *urb) +{ + char *speed, *type; + memset (qh, 0, sizeof (dwc_otg_qh_t)); + + /* Initialize QH */ + switch (usb_pipetype(urb->pipe)) { + case PIPE_CONTROL: + qh->ep_type = USB_ENDPOINT_XFER_CONTROL; + break; + case PIPE_BULK: + qh->ep_type = USB_ENDPOINT_XFER_BULK; + break; + case PIPE_ISOCHRONOUS: + qh->ep_type = USB_ENDPOINT_XFER_ISOC; + break; + case PIPE_INTERRUPT: + qh->ep_type = USB_ENDPOINT_XFER_INT; + break; + } + + qh->ep_is_in = usb_pipein(urb->pipe) ? 1 : 0; + + qh->data_toggle = DWC_OTG_HC_PID_DATA0; + qh->maxp = usb_maxpacket(urb->dev, urb->pipe, !(usb_pipein(urb->pipe))); + INIT_LIST_HEAD(&qh->qtd_list); + INIT_LIST_HEAD(&qh->qh_list_entry); + qh->channel = NULL; + qh->speed = urb->dev->speed; + + /* FS/LS Enpoint on HS Hub + * NOT virtual root hub */ + qh->do_split = 0; + if (((urb->dev->speed == USB_SPEED_LOW) || + (urb->dev->speed == USB_SPEED_FULL)) && + (urb->dev->tt) && (urb->dev->tt->hub) && (urb->dev->tt->hub->devnum != 1)) + { + DWC_DEBUGPL(DBG_HCD, "QH init: EP %d: TT found at hub addr %d, for port %d\n", + usb_pipeendpoint(urb->pipe), urb->dev->tt->hub->devnum, + urb->dev->ttport); + qh->do_split = 1; + } + + if (qh->ep_type == USB_ENDPOINT_XFER_INT || + qh->ep_type == USB_ENDPOINT_XFER_ISOC) { + /* Compute scheduling parameters once and save them. */ + hprt0_data_t hprt; + + /** @todo Account for split transfers in the bus time. */ + int bytecount = dwc_hb_mult(qh->maxp) * dwc_max_packet(qh->maxp); + qh->usecs = NS_TO_US(usb_calc_bus_time(urb->dev->speed, + usb_pipein(urb->pipe), + (qh->ep_type == USB_ENDPOINT_XFER_ISOC), + bytecount)); + + /* Start in a slightly future (micro)frame. */ + qh->sched_frame = dwc_frame_num_inc(hcd->frame_number, + SCHEDULE_SLOP); + qh->interval = urb->interval; +#if 0 + /* Increase interrupt polling rate for debugging. */ + if (qh->ep_type == USB_ENDPOINT_XFER_INT) { + qh->interval = 8; + } +#endif + hprt.d32 = dwc_read_reg32(hcd->core_if->host_if->hprt0); + if ((hprt.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) && + ((urb->dev->speed == USB_SPEED_LOW) || + (urb->dev->speed == USB_SPEED_FULL))) { + qh->interval *= 8; + qh->sched_frame |= 0x7; + qh->start_split_frame = qh->sched_frame; + } + + } + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD QH Initialized\n"); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - qh = %p\n", qh); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Device Address = %d\n", + urb->dev->devnum); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Endpoint %d, %s\n", + usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) == USB_DIR_IN ? "IN" : "OUT"); + + switch(urb->dev->speed) { + case USB_SPEED_LOW: + speed = "low"; + break; + case USB_SPEED_FULL: + speed = "full"; + break; + case USB_SPEED_HIGH: + speed = "high"; + break; + default: + speed = "?"; + break; + } + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Speed = %s\n", speed); + + switch (qh->ep_type) { + case USB_ENDPOINT_XFER_ISOC: + type = "isochronous"; + break; + case USB_ENDPOINT_XFER_INT: + type = "interrupt"; + break; + case USB_ENDPOINT_XFER_CONTROL: + type = "control"; + break; + case USB_ENDPOINT_XFER_BULK: + type = "bulk"; + break; + default: + type = "?"; + break; + } + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Type = %s\n",type); + +#ifdef DEBUG + if (qh->ep_type == USB_ENDPOINT_XFER_INT) { + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - usecs = %d\n", + qh->usecs); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - interval = %d\n", + qh->interval); + } +#endif + + return; +} + +/** + * Microframe scheduler + * track the total use in hcd->frame_usecs + * keep each qh use in qh->frame_usecs + * when surrendering the qh then donate the time back + */ +static const u16 max_uframe_usecs[] = { 100, 100, 100, 100, 100, 100, 30, 0 }; + +/* + * called from dwc_otg_hcd.c:dwc_otg_hcd_init + */ +int init_hcd_usecs(dwc_otg_hcd_t *hcd) +{ + int i; + + for (i = 0; i < 8; i++) + hcd->frame_usecs[i] = max_uframe_usecs[i]; + + return 0; +} + +static int find_single_uframe(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + int i; + u16 utime; + int t_left; + int ret; + int done; + + ret = -1; + utime = qh->usecs; + t_left = utime; + i = 0; + done = 0; + while (done == 0) { + /* At the start hcd->frame_usecs[i] = max_uframe_usecs[i]; */ + if (utime <= hcd->frame_usecs[i]) { + hcd->frame_usecs[i] -= utime; + qh->frame_usecs[i] += utime; + t_left -= utime; + ret = i; + done = 1; + return ret; + } else { + i++; + if (i == 8) { + done = 1; + ret = -1; + } + } + } + return ret; +} + +/* + * use this for FS apps that can span multiple uframes + */ +static int find_multi_uframe(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + int i; + int j; + u16 utime; + int t_left; + int ret; + int done; + u16 xtime; + + ret = -1; + utime = qh->usecs; + t_left = utime; + i = 0; + done = 0; +loop: + while (done == 0) { + if (hcd->frame_usecs[i] <= 0) { + i++; + if (i == 8) { + done = 1; + ret = -1; + } + goto loop; + } + + /* + * We need n consequtive slots so use j as a start slot. + * j plus j+1 must be enough time (for now) + */ + xtime = hcd->frame_usecs[i]; + for (j = i + 1; j < 8; j++) { + /* + * if we add this frame remaining time to xtime we may + * be OK, if not we need to test j for a complete frame. + */ + if ((xtime + hcd->frame_usecs[j]) < utime) { + if (hcd->frame_usecs[j] < max_uframe_usecs[j]) { + j = 8; + ret = -1; + continue; + } + } + if (xtime >= utime) { + ret = i; + j = 8; /* stop loop with a good value ret */ + continue; + } + /* add the frame time to x time */ + xtime += hcd->frame_usecs[j]; + /* we must have a fully available next frame or break */ + if ((xtime < utime) && + (hcd->frame_usecs[j] == max_uframe_usecs[j])) { + ret = -1; + j = 8; /* stop loop with a bad value ret */ + continue; + } + } + if (ret >= 0) { + t_left = utime; + for (j = i; (t_left > 0) && (j < 8); j++) { + t_left -= hcd->frame_usecs[j]; + if (t_left <= 0) { + qh->frame_usecs[j] += + hcd->frame_usecs[j] + t_left; + hcd->frame_usecs[j] = -t_left; + ret = i; + done = 1; + } else { + qh->frame_usecs[j] += + hcd->frame_usecs[j]; + hcd->frame_usecs[j] = 0; + } + } + } else { + i++; + if (i == 8) { + done = 1; + ret = -1; + } + } + } + return ret; +} + +static int find_uframe(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + int ret = -1; + + if (qh->speed == USB_SPEED_HIGH) + /* if this is a hs transaction we need a full frame */ + ret = find_single_uframe(hcd, qh); + else + /* FS transaction may need a sequence of frames */ + ret = find_multi_uframe(hcd, qh); + + return ret; +} + +/** + * Checks that the max transfer size allowed in a host channel is large enough + * to handle the maximum data transfer in a single (micro)frame for a periodic + * transfer. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param qh QH for a periodic endpoint. + * + * @return 0 if successful, negative error code otherwise. + */ +static int check_max_xfer_size(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + int status; + uint32_t max_xfer_size; + uint32_t max_channel_xfer_size; + + status = 0; + + max_xfer_size = dwc_max_packet(qh->maxp) * dwc_hb_mult(qh->maxp); + max_channel_xfer_size = hcd->core_if->core_params->max_transfer_size; + + if (max_xfer_size > max_channel_xfer_size) { + DWC_NOTICE("%s: Periodic xfer length %d > " + "max xfer length for channel %d\n", + __func__, max_xfer_size, max_channel_xfer_size); + status = -ENOSPC; + } + + return status; +} + +/** + * Schedules an interrupt or isochronous transfer in the periodic schedule. + */ +static int schedule_periodic(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + int status; + struct usb_bus *bus = hcd_to_bus(dwc_otg_hcd_to_hcd(hcd)); + int frame; + + status = find_uframe(hcd, qh); + frame = -1; + if (status == 0) { + frame = 7; + } else { + if (status > 0) + frame = status - 1; + } + /* Set the new frame up */ + if (frame > -1) { + qh->sched_frame &= ~0x7; + qh->sched_frame |= (frame & 7); + } + if (status != -1) + status = 0; + if (status) { + pr_notice("%s: Insufficient periodic bandwidth for " + "periodic transfer.\n", __func__); + return status; + } + status = check_max_xfer_size(hcd, qh); + if (status) { + pr_notice("%s: Channel max transfer size too small " + "for periodic transfer.\n", __func__); + return status; + } + /* Always start in the inactive schedule. */ + list_add_tail(&qh->qh_list_entry, &hcd->periodic_sched_inactive); + + /* Update claimed usecs per (micro)frame. */ + hcd->periodic_usecs += qh->usecs; + + /* + * Update average periodic bandwidth claimed and # periodic reqs for + * usbfs. + */ + bus->bandwidth_allocated += qh->usecs / qh->interval; + + if (qh->ep_type == USB_ENDPOINT_XFER_INT) + bus->bandwidth_int_reqs++; + else + bus->bandwidth_isoc_reqs++; + + return status; +} + +/** + * This function adds a QH to either the non periodic or periodic schedule if + * it is not already in the schedule. If the QH is already in the schedule, no + * action is taken. + * + * @return 0 if successful, negative error code otherwise. + */ +int dwc_otg_hcd_qh_add (dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + //unsigned long flags; + int status = 0; + +#ifdef CONFIG_SMP + //the spinlock is locked before this function get called, + //but in case the lock is needed, the check function is preserved + //but in non-SMP mode, all spinlock is lockable. + //don't do the test in non-SMP mode + + if(spin_trylock(&hcd->lock)) { + printk("%s: It is not supposed to be lockable!!\n",__func__); + BUG(); + } +#endif +// SPIN_LOCK_IRQSAVE(&hcd->lock, flags) + + if (!list_empty(&qh->qh_list_entry)) { + /* QH already in a schedule. */ + goto done; + } + + /* Add the new QH to the appropriate schedule */ + if (dwc_qh_is_non_per(qh)) { + /* Always start in the inactive schedule. */ + list_add_tail(&qh->qh_list_entry, &hcd->non_periodic_sched_inactive); + } else { + status = schedule_periodic(hcd, qh); + } + + done: +// SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags) + + return status; +} + +/** + * Removes an interrupt or isochronous transfer from the periodic schedule. + */ +static void deschedule_periodic(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + struct usb_bus *bus = hcd_to_bus(dwc_otg_hcd_to_hcd(hcd)); + int i; + + list_del_init(&qh->qh_list_entry); + /* Update claimed usecs per (micro)frame. */ + hcd->periodic_usecs -= qh->usecs; + for (i = 0; i < 8; i++) { + hcd->frame_usecs[i] += qh->frame_usecs[i]; + qh->frame_usecs[i] = 0; + } + /* + * Update average periodic bandwidth claimed and # periodic reqs for + * usbfs. + */ + bus->bandwidth_allocated -= qh->usecs / qh->interval; + + if (qh->ep_type == USB_ENDPOINT_XFER_INT) + bus->bandwidth_int_reqs--; + else + bus->bandwidth_isoc_reqs--; +} + +/** + * Removes a QH from either the non-periodic or periodic schedule. Memory is + * not freed. + * + * @param[in] hcd The HCD state structure. + * @param[in] qh QH to remove from schedule. */ +void dwc_otg_hcd_qh_remove (dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + //unsigned long flags; + +#ifdef CONFIG_SMP + //the spinlock is locked before this function get called, + //but in case the lock is needed, the check function is preserved + //but in non-SMP mode, all spinlock is lockable. + //don't do the test in non-SMP mode + + if(spin_trylock(&hcd->lock)) { + printk("%s: It is not supposed to be lockable!!\n",__func__); + BUG(); + } +#endif +// SPIN_LOCK_IRQSAVE(&hcd->lock, flags); + + if (list_empty(&qh->qh_list_entry)) { + /* QH is not in a schedule. */ + goto done; + } + + if (dwc_qh_is_non_per(qh)) { + if (hcd->non_periodic_qh_ptr == &qh->qh_list_entry) { + hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next; + } + list_del_init(&qh->qh_list_entry); + } else { + deschedule_periodic(hcd, qh); + } + + done: +// SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags); + return; +} + +/** + * Deactivates a QH. For non-periodic QHs, removes the QH from the active + * non-periodic schedule. The QH is added to the inactive non-periodic + * schedule if any QTDs are still attached to the QH. + * + * For periodic QHs, the QH is removed from the periodic queued schedule. If + * there are any QTDs still attached to the QH, the QH is added to either the + * periodic inactive schedule or the periodic ready schedule and its next + * scheduled frame is calculated. The QH is placed in the ready schedule if + * the scheduled frame has been reached already. Otherwise it's placed in the + * inactive schedule. If there are no QTDs attached to the QH, the QH is + * completely removed from the periodic schedule. + */ +void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, int sched_next_periodic_split) +{ + unsigned long flags; + SPIN_LOCK_IRQSAVE(&hcd->lock, flags); + + if (dwc_qh_is_non_per(qh)) { + dwc_otg_hcd_qh_remove(hcd, qh); + if (!list_empty(&qh->qtd_list)) { + /* Add back to inactive non-periodic schedule. */ + dwc_otg_hcd_qh_add(hcd, qh); + } + } else { + uint16_t frame_number = dwc_otg_hcd_get_frame_number(dwc_otg_hcd_to_hcd(hcd)); + + if (qh->do_split) { + /* Schedule the next continuing periodic split transfer */ + if (sched_next_periodic_split) { + + qh->sched_frame = frame_number; + if (dwc_frame_num_le(frame_number, + dwc_frame_num_inc(qh->start_split_frame, 1))) { + /* + * Allow one frame to elapse after start + * split microframe before scheduling + * complete split, but DONT if we are + * doing the next start split in the + * same frame for an ISOC out. + */ + if ((qh->ep_type != USB_ENDPOINT_XFER_ISOC) || (qh->ep_is_in != 0)) { + qh->sched_frame = dwc_frame_num_inc(qh->sched_frame, 1); + } + } + } else { + qh->sched_frame = dwc_frame_num_inc(qh->start_split_frame, + qh->interval); + if (dwc_frame_num_le(qh->sched_frame, frame_number)) { + qh->sched_frame = frame_number; + } + qh->sched_frame |= 0x7; + qh->start_split_frame = qh->sched_frame; + } + } else { + qh->sched_frame = dwc_frame_num_inc(qh->sched_frame, qh->interval); + if (dwc_frame_num_le(qh->sched_frame, frame_number)) { + qh->sched_frame = frame_number; + } + } + + if (list_empty(&qh->qtd_list)) { + dwc_otg_hcd_qh_remove(hcd, qh); + } else { + /* + * Remove from periodic_sched_queued and move to + * appropriate queue. + */ + if (qh->sched_frame == frame_number) { + list_move(&qh->qh_list_entry, + &hcd->periodic_sched_ready); + } else { + list_move(&qh->qh_list_entry, + &hcd->periodic_sched_inactive); + } + } + } + + SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags); +} + +/** + * This function allocates and initializes a QTD. + * + * @param[in] urb The URB to create a QTD from. Each URB-QTD pair will end up + * pointing to each other so each pair should have a unique correlation. + * + * @return Returns pointer to the newly allocated QTD, or NULL on error. */ +dwc_otg_qtd_t *dwc_otg_hcd_qtd_create (struct urb *urb) +{ + dwc_otg_qtd_t *qtd; + + qtd = dwc_otg_hcd_qtd_alloc (); + if (qtd == NULL) { + return NULL; + } + + dwc_otg_hcd_qtd_init (qtd, urb); + return qtd; +} + +/** + * Initializes a QTD structure. + * + * @param[in] qtd The QTD to initialize. + * @param[in] urb The URB to use for initialization. */ +void dwc_otg_hcd_qtd_init (dwc_otg_qtd_t *qtd, struct urb *urb) +{ + memset (qtd, 0, sizeof (dwc_otg_qtd_t)); + qtd->urb = urb; + if (usb_pipecontrol(urb->pipe)) { + /* + * The only time the QTD data toggle is used is on the data + * phase of control transfers. This phase always starts with + * DATA1. + */ + qtd->data_toggle = DWC_OTG_HC_PID_DATA1; + qtd->control_phase = DWC_OTG_CONTROL_SETUP; + } + + /* start split */ + qtd->complete_split = 0; + qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_ALL; + qtd->isoc_split_offset = 0; + + /* Store the qtd ptr in the urb to reference what QTD. */ + urb->hcpriv = qtd; + return; +} + +/** + * This function adds a QTD to the QTD-list of a QH. It will find the correct + * QH to place the QTD into. If it does not find a QH, then it will create a + * new QH. If the QH to which the QTD is added is not currently scheduled, it + * is placed into the proper schedule based on its EP type. + * + * @param[in] qtd The QTD to add + * @param[in] dwc_otg_hcd The DWC HCD structure + * + * @return 0 if successful, negative error code otherwise. + */ +int dwc_otg_hcd_qtd_add (dwc_otg_qtd_t *qtd, + dwc_otg_hcd_t *dwc_otg_hcd) +{ + struct usb_host_endpoint *ep; + dwc_otg_qh_t *qh; + unsigned long flags; + int retval = 0; + + struct urb *urb = qtd->urb; + + SPIN_LOCK_IRQSAVE(&dwc_otg_hcd->lock, flags); + + /* + * Get the QH which holds the QTD-list to insert to. Create QH if it + * doesn't exist. + */ + ep = dwc_urb_to_endpoint(urb); + qh = (dwc_otg_qh_t *)ep->hcpriv; + if (qh == NULL) { + qh = dwc_otg_hcd_qh_create (dwc_otg_hcd, urb); + if (qh == NULL) { + goto done; + } + ep->hcpriv = qh; + } + + retval = dwc_otg_hcd_qh_add(dwc_otg_hcd, qh); + if (retval == 0) { + list_add_tail(&qtd->qtd_list_entry, &qh->qtd_list); + } + + done: + SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); + + return retval; +} + +#endif /* DWC_DEVICE_ONLY */ diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_pcd.c b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_pcd.c new file mode 100644 index 0000000000..2cf6243ad0 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_pcd.c @@ -0,0 +1,2502 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd.c $ + * $Revision: #70 $ + * $Date: 2008/10/14 $ + * $Change: 1115682 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_HOST_ONLY + +/** @file + * This file implements the Peripheral Controller Driver. + * + * The Peripheral Controller Driver (PCD) is responsible for + * translating requests from the Function Driver into the appropriate + * actions on the DWC_otg controller. It isolates the Function Driver + * from the specifics of the controller by providing an API to the + * Function Driver. + * + * The Peripheral Controller Driver for Linux will implement the + * Gadget API, so that the existing Gadget drivers can be used. + * (Gadget Driver is the Linux terminology for a Function Driver.) + * + * The Linux Gadget API is defined in the header file + * <code><linux/usb_gadget.h></code>. The USB EP operations API is + * defined in the structure <code>usb_ep_ops</code> and the USB + * Controller API is defined in the structure + * <code>usb_gadget_ops</code>. + * + * An important function of the PCD is managing interrupts generated + * by the DWC_otg controller. The implementation of the DWC_otg device + * mode interrupt service routines is in dwc_otg_pcd_intr.c. + * + * @todo Add Device Mode test modes (Test J mode, Test K mode, etc). + * @todo Does it work when the request size is greater than DEPTSIZ + * transfer size + * + */ + + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/errno.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/string.h> +#include <linux/dma-mapping.h> +#include <linux/version.h> + +#include <mach/irqs.h> +#include <linux/usb/ch9.h> + +//#include <linux/usb_gadget.h> + +#include "otg_driver.h" +#include "otg_pcd.h" + + + +/** + * Static PCD pointer for use in usb_gadget_register_driver and + * usb_gadget_unregister_driver. Initialized in dwc_otg_pcd_init. + */ +static dwc_otg_pcd_t *s_pcd = 0; + + +/* Display the contents of the buffer */ +extern void dump_msg(const u8 *buf, unsigned int length); + + +/** + * This function completes a request. It call's the request call back. + */ +void dwc_otg_request_done(dwc_otg_pcd_ep_t *ep, dwc_otg_pcd_request_t *req, + int status) +{ + unsigned stopped = ep->stopped; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, ep); + list_del_init(&req->queue); + + if (req->req.status == -EINPROGRESS) { + req->req.status = status; + } else { + status = req->req.status; + } + + /* don't modify queue heads during completion callback */ + ep->stopped = 1; + SPIN_UNLOCK(&ep->pcd->lock); + req->req.complete(&ep->ep, &req->req); + SPIN_LOCK(&ep->pcd->lock); + + if (ep->pcd->request_pending > 0) { + --ep->pcd->request_pending; + } + + ep->stopped = stopped; +} + +/** + * This function terminates all the requsts in the EP request queue. + */ +void dwc_otg_request_nuke(dwc_otg_pcd_ep_t *ep) +{ + dwc_otg_pcd_request_t *req; + + ep->stopped = 1; + + /* called with irqs blocked?? */ + while (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, dwc_otg_pcd_request_t, + queue); + dwc_otg_request_done(ep, req, -ESHUTDOWN); + } +} + +/* USB Endpoint Operations */ +/* + * The following sections briefly describe the behavior of the Gadget + * API endpoint operations implemented in the DWC_otg driver + * software. Detailed descriptions of the generic behavior of each of + * these functions can be found in the Linux header file + * include/linux/usb_gadget.h. + * + * The Gadget API provides wrapper functions for each of the function + * pointers defined in usb_ep_ops. The Gadget Driver calls the wrapper + * function, which then calls the underlying PCD function. The + * following sections are named according to the wrapper + * functions. Within each section, the corresponding DWC_otg PCD + * function name is specified. + * + */ + +/** + * This function assigns periodic Tx FIFO to an periodic EP + * in shared Tx FIFO mode + */ +static uint32_t assign_perio_tx_fifo(dwc_otg_core_if_t *core_if) +{ + uint32_t PerTxMsk = 1; + int i; + for(i = 0; i < core_if->hwcfg4.b.num_dev_perio_in_ep; ++i) + { + if((PerTxMsk & core_if->p_tx_msk) == 0) { + core_if->p_tx_msk |= PerTxMsk; + return i + 1; + } + PerTxMsk <<= 1; + } + return 0; +} +/** + * This function releases periodic Tx FIFO + * in shared Tx FIFO mode + */ +static void release_perio_tx_fifo(dwc_otg_core_if_t *core_if, uint32_t fifo_num) +{ + core_if->p_tx_msk = (core_if->p_tx_msk & (1 << (fifo_num - 1))) ^ core_if->p_tx_msk; +} +/** + * This function assigns periodic Tx FIFO to an periodic EP + * in shared Tx FIFO mode + */ +static uint32_t assign_tx_fifo(dwc_otg_core_if_t *core_if) +{ + uint32_t TxMsk = 1; + int i; + + for(i = 0; i < core_if->hwcfg4.b.num_in_eps; ++i) + { + if((TxMsk & core_if->tx_msk) == 0) { + core_if->tx_msk |= TxMsk; + return i + 1; + } + TxMsk <<= 1; + } + return 0; +} +/** + * This function releases periodic Tx FIFO + * in shared Tx FIFO mode + */ +static void release_tx_fifo(dwc_otg_core_if_t *core_if, uint32_t fifo_num) +{ + core_if->tx_msk = (core_if->tx_msk & (1 << (fifo_num - 1))) ^ core_if->tx_msk; +} + +/** + * This function is called by the Gadget Driver for each EP to be + * configured for the current configuration (SET_CONFIGURATION). + * + * This function initializes the dwc_otg_ep_t data structure, and then + * calls dwc_otg_ep_activate. + */ +static int dwc_otg_pcd_ep_enable(struct usb_ep *usb_ep, + const struct usb_endpoint_descriptor *ep_desc) +{ + dwc_otg_pcd_ep_t *ep = 0; + dwc_otg_pcd_t *pcd = 0; + unsigned long flags; + + DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p)\n", __func__, usb_ep, ep_desc); + + ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); + if (!usb_ep || !ep_desc || ep->desc || + ep_desc->bDescriptorType != USB_DT_ENDPOINT) { + DWC_WARN("%s, bad ep or descriptor\n", __func__); + return -EINVAL; + } + if (ep == &ep->pcd->ep0) { + DWC_WARN("%s, bad ep(0)\n", __func__); + return -EINVAL; + } + + /* Check FIFO size? */ + if (!ep_desc->wMaxPacketSize) { + DWC_WARN("%s, bad %s maxpacket\n", __func__, usb_ep->name); + return -ERANGE; + } + + pcd = ep->pcd; + if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) { + DWC_WARN("%s, bogus device state\n", __func__); + return -ESHUTDOWN; + } + + SPIN_LOCK_IRQSAVE(&pcd->lock, flags); + + ep->desc = ep_desc; + ep->ep.maxpacket = le16_to_cpu (ep_desc->wMaxPacketSize); + + /* + * Activate the EP + */ + ep->stopped = 0; + + ep->dwc_ep.is_in = (USB_DIR_IN & ep_desc->bEndpointAddress) != 0; + ep->dwc_ep.maxpacket = ep->ep.maxpacket; + + ep->dwc_ep.type = ep_desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; + + if(ep->dwc_ep.is_in) { + if(!pcd->otg_dev->core_if->en_multiple_tx_fifo) { + ep->dwc_ep.tx_fifo_num = 0; + + if (ep->dwc_ep.type == USB_ENDPOINT_XFER_ISOC) { + /* + * if ISOC EP then assign a Periodic Tx FIFO. + */ + ep->dwc_ep.tx_fifo_num = assign_perio_tx_fifo(pcd->otg_dev->core_if); + } + } else { + /* + * if Dedicated FIFOs mode is on then assign a Tx FIFO. + */ + ep->dwc_ep.tx_fifo_num = assign_tx_fifo(pcd->otg_dev->core_if); + + } + } + /* Set initial data PID. */ + if (ep->dwc_ep.type == USB_ENDPOINT_XFER_BULK) { + ep->dwc_ep.data_pid_start = 0; + } + + DWC_DEBUGPL(DBG_PCD, "Activate %s-%s: type=%d, mps=%d desc=%p\n", + ep->ep.name, (ep->dwc_ep.is_in ?"IN":"OUT"), + ep->dwc_ep.type, ep->dwc_ep.maxpacket, ep->desc); + + if(ep->dwc_ep.type != USB_ENDPOINT_XFER_ISOC) { + ep->dwc_ep.desc_addr = dwc_otg_ep_alloc_desc_chain(&ep->dwc_ep.dma_desc_addr, MAX_DMA_DESC_CNT); + } + + dwc_otg_ep_activate(GET_CORE_IF(pcd), &ep->dwc_ep); + SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); + + return 0; +} + +/** + * This function is called when an EP is disabled due to disconnect or + * change in configuration. Any pending requests will terminate with a + * status of -ESHUTDOWN. + * + * This function modifies the dwc_otg_ep_t data structure for this EP, + * and then calls dwc_otg_ep_deactivate. + */ +static int dwc_otg_pcd_ep_disable(struct usb_ep *usb_ep) +{ + dwc_otg_pcd_ep_t *ep; + dwc_otg_pcd_t *pcd = 0; + unsigned long flags; + + DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, usb_ep); + ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); + if (!usb_ep || !ep->desc) { + DWC_DEBUGPL(DBG_PCD, "%s, %s not enabled\n", __func__, + usb_ep ? ep->ep.name : NULL); + return -EINVAL; + } + + SPIN_LOCK_IRQSAVE(&ep->pcd->lock, flags); + + dwc_otg_request_nuke(ep); + + dwc_otg_ep_deactivate(GET_CORE_IF(ep->pcd), &ep->dwc_ep); + ep->desc = 0; + ep->stopped = 1; + + if(ep->dwc_ep.is_in) { + dwc_otg_flush_tx_fifo(GET_CORE_IF(ep->pcd), ep->dwc_ep.tx_fifo_num); + release_perio_tx_fifo(GET_CORE_IF(ep->pcd), ep->dwc_ep.tx_fifo_num); + release_tx_fifo(GET_CORE_IF(ep->pcd), ep->dwc_ep.tx_fifo_num); + } + + /* Free DMA Descriptors */ + pcd = ep->pcd; + + SPIN_UNLOCK_IRQRESTORE(&ep->pcd->lock, flags); + + if(ep->dwc_ep.type != USB_ENDPOINT_XFER_ISOC && ep->dwc_ep.desc_addr) { + dwc_otg_ep_free_desc_chain(ep->dwc_ep.desc_addr, ep->dwc_ep.dma_desc_addr, MAX_DMA_DESC_CNT); + } + + DWC_DEBUGPL(DBG_PCD, "%s disabled\n", usb_ep->name); + return 0; +} + + +/** + * This function allocates a request object to use with the specified + * endpoint. + * + * @param ep The endpoint to be used with with the request + * @param gfp_flags the GFP_* flags to use. + */ +static struct usb_request *dwc_otg_pcd_alloc_request(struct usb_ep *ep, + gfp_t gfp_flags) +{ + dwc_otg_pcd_request_t *req; + + DWC_DEBUGPL(DBG_PCDV,"%s(%p,%d)\n", __func__, ep, gfp_flags); + if (0 == ep) { + DWC_WARN("%s() %s\n", __func__, "Invalid EP!\n"); + return 0; + } + req = kmalloc(sizeof(dwc_otg_pcd_request_t), gfp_flags); + if (0 == req) { + DWC_WARN("%s() %s\n", __func__, + "request allocation failed!\n"); + return 0; + } + memset(req, 0, sizeof(dwc_otg_pcd_request_t)); + req->req.dma = DMA_ADDR_INVALID; + INIT_LIST_HEAD(&req->queue); + return &req->req; +} + +/** + * This function frees a request object. + * + * @param ep The endpoint associated with the request + * @param req The request being freed + */ +static void dwc_otg_pcd_free_request(struct usb_ep *ep, + struct usb_request *req) +{ + dwc_otg_pcd_request_t *request; + DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p)\n", __func__, ep, req); + + if (0 == ep || 0 == req) { + DWC_WARN("%s() %s\n", __func__, + "Invalid ep or req argument!\n"); + return; + } + + request = container_of(req, dwc_otg_pcd_request_t, req); + kfree(request); +} + +#if 0 +/** + * This function allocates an I/O buffer to be used for a transfer + * to/from the specified endpoint. + * + * @param usb_ep The endpoint to be used with with the request + * @param bytes The desired number of bytes for the buffer + * @param dma Pointer to the buffer's DMA address; must be valid + * @param gfp_flags the GFP_* flags to use. + * @return address of a new buffer or null is buffer could not be allocated. + */ +static void *dwc_otg_pcd_alloc_buffer(struct usb_ep *usb_ep, unsigned bytes, + dma_addr_t *dma, + gfp_t gfp_flags) +{ + void *buf; + dwc_otg_pcd_ep_t *ep; + dwc_otg_pcd_t *pcd = 0; + + ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); + pcd = ep->pcd; + + DWC_DEBUGPL(DBG_PCDV,"%s(%p,%d,%p,%0x)\n", __func__, usb_ep, bytes, + dma, gfp_flags); + + /* Check dword alignment */ + if ((bytes & 0x3UL) != 0) { + DWC_WARN("%s() Buffer size is not a multiple of" + "DWORD size (%d)",__func__, bytes); + } + + if (GET_CORE_IF(pcd)->dma_enable) { + buf = dma_alloc_coherent (NULL, bytes, dma, gfp_flags); + } + else { + buf = kmalloc(bytes, gfp_flags); + } + + /* Check dword alignment */ + if (((int)buf & 0x3UL) != 0) { + DWC_WARN("%s() Buffer is not DWORD aligned (%p)", + __func__, buf); + } + + return buf; +} + +/** + * This function frees an I/O buffer that was allocated by alloc_buffer. + * + * @param usb_ep the endpoint associated with the buffer + * @param buf address of the buffer + * @param dma The buffer's DMA address + * @param bytes The number of bytes of the buffer + */ +static void dwc_otg_pcd_free_buffer(struct usb_ep *usb_ep, void *buf, + dma_addr_t dma, unsigned bytes) +{ + dwc_otg_pcd_ep_t *ep; + dwc_otg_pcd_t *pcd = 0; + + ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); + pcd = ep->pcd; + + DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p,%0x,%d)\n", __func__, ep, buf, dma, bytes); + + if (GET_CORE_IF(pcd)->dma_enable) { + dma_free_coherent (NULL, bytes, buf, dma); + } + else { + kfree(buf); + } +} +#endif + +/** + * This function is used to submit an I/O Request to an EP. + * + * - When the request completes the request's completion callback + * is called to return the request to the driver. + * - An EP, except control EPs, may have multiple requests + * pending. + * - Once submitted the request cannot be examined or modified. + * - Each request is turned into one or more packets. + * - A BULK EP can queue any amount of data; the transfer is + * packetized. + * - Zero length Packets are specified with the request 'zero' + * flag. + */ +static int dwc_otg_pcd_ep_queue(struct usb_ep *usb_ep, + struct usb_request *usb_req, + gfp_t gfp_flags) +{ + int prevented = 0; + dwc_otg_pcd_request_t *req; + dwc_otg_pcd_ep_t *ep; + dwc_otg_pcd_t *pcd; + unsigned long flags = 0; + + DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p,%d)\n", + __func__, usb_ep, usb_req, gfp_flags); + + req = container_of(usb_req, dwc_otg_pcd_request_t, req); + if (!usb_req || !usb_req->complete || !usb_req->buf || + !list_empty(&req->queue)) { + DWC_WARN("%s, bad params\n", __func__); + return -EINVAL; + } + + ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); + if (!usb_ep || (!ep->desc && ep->dwc_ep.num != 0)/* || ep->stopped != 0*/) { + DWC_WARN("%s, bad ep\n", __func__); + return -EINVAL; + } + + pcd = ep->pcd; + if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) { + DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n", pcd->gadget.speed); + DWC_WARN("%s, bogus device state\n", __func__); + return -ESHUTDOWN; + } + + + DWC_DEBUGPL(DBG_PCD, "%s queue req %p, len %d buf %p\n", + usb_ep->name, usb_req, usb_req->length, usb_req->buf); + + if (!GET_CORE_IF(pcd)->core_params->opt) { + if (ep->dwc_ep.num != 0) { + DWC_ERROR("%s queue req %p, len %d buf %p\n", + usb_ep->name, usb_req, usb_req->length, usb_req->buf); + } + } + + SPIN_LOCK_IRQSAVE(&ep->pcd->lock, flags); + +#if defined(DEBUG) & defined(VERBOSE) + dump_msg(usb_req->buf, usb_req->length); +#endif + + usb_req->status = -EINPROGRESS; + usb_req->actual = 0; + + /* + * For EP0 IN without premature status, zlp is required? + */ + if (ep->dwc_ep.num == 0 && ep->dwc_ep.is_in) { + DWC_DEBUGPL(DBG_PCDV, "%s-OUT ZLP\n", usb_ep->name); + //_req->zero = 1; + } + + /* Start the transfer */ + if (list_empty(&ep->queue) && !ep->stopped) { + /* EP0 Transfer? */ + if (ep->dwc_ep.num == 0) { + switch (pcd->ep0state) { + case EP0_IN_DATA_PHASE: + DWC_DEBUGPL(DBG_PCD, + "%s ep0: EP0_IN_DATA_PHASE\n", + __func__); + break; + + case EP0_OUT_DATA_PHASE: + DWC_DEBUGPL(DBG_PCD, + "%s ep0: EP0_OUT_DATA_PHASE\n", + __func__); + if (pcd->request_config) { + /* Complete STATUS PHASE */ + ep->dwc_ep.is_in = 1; + pcd->ep0state = EP0_IN_STATUS_PHASE; + } + break; + + case EP0_IN_STATUS_PHASE: + DWC_DEBUGPL(DBG_PCD, + "%s ep0: EP0_IN_STATUS_PHASE\n", + __func__); + break; + + default: + DWC_DEBUGPL(DBG_ANY, "ep0: odd state %d\n", + pcd->ep0state); + SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); + return -EL2HLT; + } + ep->dwc_ep.dma_addr = usb_req->dma; + ep->dwc_ep.start_xfer_buff = usb_req->buf; + ep->dwc_ep.xfer_buff = usb_req->buf; + ep->dwc_ep.xfer_len = usb_req->length; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = ep->dwc_ep.xfer_len; + + if(usb_req->zero) { + if((ep->dwc_ep.xfer_len % ep->dwc_ep.maxpacket == 0) + && (ep->dwc_ep.xfer_len != 0)) { + ep->dwc_ep.sent_zlp = 1; + } + + } + + ep_check_and_patch_dma_addr(ep); + dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep->dwc_ep); + } + else { + + uint32_t max_transfer = GET_CORE_IF(ep->pcd)->core_params->max_transfer_size; + + /* Setup and start the Transfer */ + ep->dwc_ep.dma_addr = usb_req->dma; + ep->dwc_ep.start_xfer_buff = usb_req->buf; + ep->dwc_ep.xfer_buff = usb_req->buf; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = usb_req->length; + ep->dwc_ep.xfer_len = 0; + ep->dwc_ep.xfer_count = 0; + + if(max_transfer > MAX_TRANSFER_SIZE) { + ep->dwc_ep.maxxfer = max_transfer - (max_transfer % ep->dwc_ep.maxpacket); + } else { + ep->dwc_ep.maxxfer = max_transfer; + } + + if(usb_req->zero) { + if((ep->dwc_ep.total_len % ep->dwc_ep.maxpacket == 0) + && (ep->dwc_ep.total_len != 0)) { + ep->dwc_ep.sent_zlp = 1; + } + + } + + ep_check_and_patch_dma_addr(ep); + dwc_otg_ep_start_transfer(GET_CORE_IF(pcd), &ep->dwc_ep); + } + } + + if ((req != 0) || prevented) { + ++pcd->request_pending; + list_add_tail(&req->queue, &ep->queue); + if (ep->dwc_ep.is_in && ep->stopped && !(GET_CORE_IF(pcd)->dma_enable)) { + /** @todo NGS Create a function for this. */ + diepmsk_data_t diepmsk = { .d32 = 0}; + diepmsk.b.intktxfemp = 1; + if(&GET_CORE_IF(pcd)->multiproc_int_enable) { + dwc_modify_reg32(&GET_CORE_IF(pcd)->dev_if->dev_global_regs->diepeachintmsk[ep->dwc_ep.num], + 0, diepmsk.d32); + } else { + dwc_modify_reg32(&GET_CORE_IF(pcd)->dev_if->dev_global_regs->diepmsk, 0, diepmsk.d32); + } + } + } + + SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); + return 0; +} + +/** + * This function cancels an I/O request from an EP. + */ +static int dwc_otg_pcd_ep_dequeue(struct usb_ep *usb_ep, + struct usb_request *usb_req) +{ + dwc_otg_pcd_request_t *req; + dwc_otg_pcd_ep_t *ep; + dwc_otg_pcd_t *pcd; + unsigned long flags; + + DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p)\n", __func__, usb_ep, usb_req); + + ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); + if (!usb_ep || !usb_req || (!ep->desc && ep->dwc_ep.num != 0)) { + DWC_WARN("%s, bad argument\n", __func__); + return -EINVAL; + } + pcd = ep->pcd; + if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) { + DWC_WARN("%s, bogus device state\n", __func__); + return -ESHUTDOWN; + } + + SPIN_LOCK_IRQSAVE(&pcd->lock, flags); + DWC_DEBUGPL(DBG_PCDV, "%s %s %s %p\n", __func__, usb_ep->name, + ep->dwc_ep.is_in ? "IN" : "OUT", + usb_req); + + /* make sure it's actually queued on this endpoint */ + list_for_each_entry(req, &ep->queue, queue) + { + if (&req->req == usb_req) { + break; + } + } + + if (&req->req != usb_req) { + SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); + return -EINVAL; + } + + if (!list_empty(&req->queue)) { + dwc_otg_request_done(ep, req, -ECONNRESET); + } + else { + req = 0; + } + + SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); + + return req ? 0 : -EOPNOTSUPP; +} + +/** + * usb_ep_set_halt stalls an endpoint. + * + * usb_ep_clear_halt clears an endpoint halt and resets its data + * toggle. + * + * Both of these functions are implemented with the same underlying + * function. The behavior depends on the value argument. + * + * @param[in] usb_ep the Endpoint to halt or clear halt. + * @param[in] value + * - 0 means clear_halt. + * - 1 means set_halt, + * - 2 means clear stall lock flag. + * - 3 means set stall lock flag. + */ +static int dwc_otg_pcd_ep_set_halt(struct usb_ep *usb_ep, int value) +{ + int retval = 0; + unsigned long flags; + dwc_otg_pcd_ep_t *ep = 0; + + + DWC_DEBUGPL(DBG_PCD,"HALT %s %d\n", usb_ep->name, value); + + ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); + + if (!usb_ep || (!ep->desc && ep != &ep->pcd->ep0) || + ep->desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) { + DWC_WARN("%s, bad ep\n", __func__); + return -EINVAL; + } + + SPIN_LOCK_IRQSAVE(&ep->pcd->lock, flags); + if (!list_empty(&ep->queue)) { + DWC_WARN("%s() %s XFer In process\n", __func__, usb_ep->name); + retval = -EAGAIN; + } + else if (value == 0) { + dwc_otg_ep_clear_stall(ep->pcd->otg_dev->core_if, + &ep->dwc_ep); + } + else if(value == 1) { + if (ep->dwc_ep.is_in == 1 && ep->pcd->otg_dev->core_if->dma_desc_enable) { + dtxfsts_data_t txstatus; + fifosize_data_t txfifosize; + + txfifosize.d32 = dwc_read_reg32(&ep->pcd->otg_dev->core_if->core_global_regs->dptxfsiz_dieptxf[ep->dwc_ep.tx_fifo_num]); + txstatus.d32 = dwc_read_reg32(&ep->pcd->otg_dev->core_if->dev_if->in_ep_regs[ep->dwc_ep.num]->dtxfsts); + + if(txstatus.b.txfspcavail < txfifosize.b.depth) { + DWC_WARN("%s() %s Data In Tx Fifo\n", __func__, usb_ep->name); + retval = -EAGAIN; + } + else { + if (ep->dwc_ep.num == 0) { + ep->pcd->ep0state = EP0_STALL; + } + + ep->stopped = 1; + dwc_otg_ep_set_stall(ep->pcd->otg_dev->core_if, + &ep->dwc_ep); + } + } + else { + if (ep->dwc_ep.num == 0) { + ep->pcd->ep0state = EP0_STALL; + } + + ep->stopped = 1; + dwc_otg_ep_set_stall(ep->pcd->otg_dev->core_if, + &ep->dwc_ep); + } + } + else if (value == 2) { + ep->dwc_ep.stall_clear_flag = 0; + } + else if (value == 3) { + ep->dwc_ep.stall_clear_flag = 1; + } + + SPIN_UNLOCK_IRQRESTORE(&ep->pcd->lock, flags); + return retval; +} + +/** + * This function allocates a DMA Descriptor chain for the Endpoint + * buffer to be used for a transfer to/from the specified endpoint. + */ +dwc_otg_dma_desc_t* dwc_otg_ep_alloc_desc_chain(uint32_t * dma_desc_addr, uint32_t count) +{ + + return dma_alloc_coherent(NULL, count * sizeof(dwc_otg_dma_desc_t), dma_desc_addr, GFP_KERNEL); +} + +LIST_HEAD(tofree_list); +DEFINE_SPINLOCK(tofree_list_lock); + +struct free_param { + struct list_head list; + + void* addr; + dma_addr_t dma_addr; + uint32_t size; +}; +void free_list_agent_fn(void *data){ + struct list_head free_list; + struct free_param *cur,*next; + + spin_lock(&tofree_list_lock); + list_add(&free_list,&tofree_list); + list_del_init(&tofree_list); + spin_unlock(&tofree_list_lock); + + list_for_each_entry_safe(cur,next,&free_list,list){ + if(cur==&free_list) break; + dma_free_coherent(NULL,cur->size,cur->addr,cur->dma_addr); + list_del(&cur->list); + kfree(cur); + } +} +DECLARE_WORK(free_list_agent,free_list_agent_fn); +/** + * This function frees a DMA Descriptor chain that was allocated by ep_alloc_desc. + */ +void dwc_otg_ep_free_desc_chain(dwc_otg_dma_desc_t* desc_addr, uint32_t dma_desc_addr, uint32_t count) +{ + if(irqs_disabled()){ + struct free_param* fp=kmalloc(sizeof(struct free_param),GFP_KERNEL); + fp->addr=desc_addr; + fp->dma_addr=dma_desc_addr; + fp->size=count*sizeof(dwc_otg_dma_desc_t); + + spin_lock(&tofree_list_lock); + list_add(&fp->list,&tofree_list); + spin_unlock(&tofree_list_lock); + + schedule_work(&free_list_agent); + return ; + } + dma_free_coherent(NULL, count * sizeof(dwc_otg_dma_desc_t), desc_addr, dma_desc_addr); +} + +#ifdef DWC_EN_ISOC + +/** + * This function initializes a descriptor chain for Isochronous transfer + * + * @param core_if Programming view of DWC_otg controller. + * @param dwc_ep The EP to start the transfer on. + * + */ +void dwc_otg_iso_ep_start_ddma_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *dwc_ep) +{ + + dsts_data_t dsts = { .d32 = 0}; + depctl_data_t depctl = { .d32 = 0 }; + volatile uint32_t *addr; + int i, j; + + if(dwc_ep->is_in) + dwc_ep->desc_cnt = dwc_ep->buf_proc_intrvl / dwc_ep->bInterval; + else + dwc_ep->desc_cnt = dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm / dwc_ep->bInterval; + + + /** Allocate descriptors for double buffering */ + dwc_ep->iso_desc_addr = dwc_otg_ep_alloc_desc_chain(&dwc_ep->iso_dma_desc_addr,dwc_ep->desc_cnt*2); + if(dwc_ep->desc_addr) { + DWC_WARN("%s, can't allocate DMA descriptor chain\n", __func__); + return; + } + + dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); + + /** ISO OUT EP */ + if(dwc_ep->is_in == 0) { + desc_sts_data_t sts = { .d32 =0 }; + dwc_otg_dma_desc_t* dma_desc = dwc_ep->iso_desc_addr; + dma_addr_t dma_ad; + uint32_t data_per_desc; + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[dwc_ep->num]; + int offset; + + addr = &core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl; + dma_ad = (dma_addr_t)dwc_read_reg32(&(out_regs->doepdma)); + + /** Buffer 0 descriptors setup */ + dma_ad = dwc_ep->dma_addr0; + + sts.b_iso_out.bs = BS_HOST_READY; + sts.b_iso_out.rxsts = 0; + sts.b_iso_out.l = 0; + sts.b_iso_out.sp = 0; + sts.b_iso_out.ioc = 0; + sts.b_iso_out.pid = 0; + sts.b_iso_out.framenum = 0; + + offset = 0; + for(i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; i+= dwc_ep->pkt_per_frm) + { + + for(j = 0; j < dwc_ep->pkt_per_frm; ++j) + { + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + sts.b_iso_out.rxbytes = data_per_desc; + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + + offset += data_per_desc; + dma_desc ++; + //(uint32_t)dma_ad += data_per_desc; + dma_ad = (uint32_t)dma_ad + data_per_desc; + } + } + + for(j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) + { + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + sts.b_iso_out.rxbytes = data_per_desc; + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + + offset += data_per_desc; + dma_desc ++; + //(uint32_t)dma_ad += data_per_desc; + dma_ad = (uint32_t)dma_ad + data_per_desc; + } + + sts.b_iso_out.ioc = 1; + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + sts.b_iso_out.rxbytes = data_per_desc; + + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + dma_desc ++; + + /** Buffer 1 descriptors setup */ + sts.b_iso_out.ioc = 0; + dma_ad = dwc_ep->dma_addr1; + + offset = 0; + for(i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; i+= dwc_ep->pkt_per_frm) + { + for(j = 0; j < dwc_ep->pkt_per_frm; ++j) + { + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + sts.b_iso_out.rxbytes = data_per_desc; + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + + offset += data_per_desc; + dma_desc ++; + //(uint32_t)dma_ad += data_per_desc; + dma_ad = (uint32_t)dma_ad + data_per_desc; + } + } + for(j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) + { + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + sts.b_iso_out.rxbytes = data_per_desc; + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + + offset += data_per_desc; + dma_desc ++; + //(uint32_t)dma_ad += data_per_desc; + dma_ad = (uint32_t)dma_ad + data_per_desc; + } + + sts.b_iso_out.ioc = 1; + sts.b_iso_out.l = 1; + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + sts.b_iso_out.rxbytes = data_per_desc; + + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + + dwc_ep->next_frame = 0; + + /** Write dma_ad into DOEPDMA register */ + dwc_write_reg32(&(out_regs->doepdma),(uint32_t)dwc_ep->iso_dma_desc_addr); + + } + /** ISO IN EP */ + else { + desc_sts_data_t sts = { .d32 =0 }; + dwc_otg_dma_desc_t* dma_desc = dwc_ep->iso_desc_addr; + dma_addr_t dma_ad; + dwc_otg_dev_in_ep_regs_t *in_regs = + core_if->dev_if->in_ep_regs[dwc_ep->num]; + unsigned int frmnumber; + fifosize_data_t txfifosize,rxfifosize; + + txfifosize.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[dwc_ep->num]->dtxfsts); + rxfifosize.d32 = dwc_read_reg32(&core_if->core_global_regs->grxfsiz); + + + addr = &core_if->dev_if->in_ep_regs[dwc_ep->num]->diepctl; + + dma_ad = dwc_ep->dma_addr0; + + dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); + + sts.b_iso_in.bs = BS_HOST_READY; + sts.b_iso_in.txsts = 0; + sts.b_iso_in.sp = (dwc_ep->data_per_frame % dwc_ep->maxpacket)? 1 : 0; + sts.b_iso_in.ioc = 0; + sts.b_iso_in.pid = dwc_ep->pkt_per_frm; + + + frmnumber = dwc_ep->next_frame; + + sts.b_iso_in.framenum = frmnumber; + sts.b_iso_in.txbytes = dwc_ep->data_per_frame; + sts.b_iso_in.l = 0; + + /** Buffer 0 descriptors setup */ + for(i = 0; i < dwc_ep->desc_cnt - 1; i++) + { + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + dma_desc ++; + + //(uint32_t)dma_ad += dwc_ep->data_per_frame; + dma_ad = (uint32_t)dma_ad + dwc_ep->data_per_frame; + sts.b_iso_in.framenum += dwc_ep->bInterval; + } + + sts.b_iso_in.ioc = 1; + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + ++dma_desc; + + /** Buffer 1 descriptors setup */ + sts.b_iso_in.ioc = 0; + dma_ad = dwc_ep->dma_addr1; + + for(i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; i+= dwc_ep->pkt_per_frm) + { + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + dma_desc ++; + + //(uint32_t)dma_ad += dwc_ep->data_per_frame; + dma_ad = (uint32_t)dma_ad + dwc_ep->data_per_frame; + sts.b_iso_in.framenum += dwc_ep->bInterval; + + sts.b_iso_in.ioc = 0; + } + sts.b_iso_in.ioc = 1; + sts.b_iso_in.l = 1; + + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + + dwc_ep->next_frame = sts.b_iso_in.framenum + dwc_ep->bInterval; + + /** Write dma_ad into diepdma register */ + dwc_write_reg32(&(in_regs->diepdma),(uint32_t)dwc_ep->iso_dma_desc_addr); + } + /** Enable endpoint, clear nak */ + depctl.d32 = 0; + depctl.b.epena = 1; + depctl.b.usbactep = 1; + depctl.b.cnak = 1; + + dwc_modify_reg32(addr, depctl.d32,depctl.d32); + depctl.d32 = dwc_read_reg32(addr); +} + +/** + * This function initializes a descriptor chain for Isochronous transfer + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ + +void dwc_otg_iso_ep_start_buf_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + depctl_data_t depctl = { .d32 = 0 }; + volatile uint32_t *addr; + + + if(ep->is_in) { + addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; + } else { + addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; + } + + + if(core_if->dma_enable == 0 || core_if->dma_desc_enable!= 0) { + return; + } else { + deptsiz_data_t deptsiz = { .d32 = 0 }; + + ep->xfer_len = ep->data_per_frame * ep->buf_proc_intrvl / ep->bInterval; + ep->pkt_cnt = (ep->xfer_len - 1 + ep->maxpacket) / + ep->maxpacket; + ep->xfer_count = 0; + ep->xfer_buff = (ep->proc_buf_num) ? ep->xfer_buff1 : ep->xfer_buff0; + ep->dma_addr = (ep->proc_buf_num) ? ep->dma_addr1 : ep->dma_addr0; + + if(ep->is_in) { + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + deptsiz.b.mc = ep->pkt_per_frm; + deptsiz.b.xfersize = ep->xfer_len; + deptsiz.b.pktcnt = + (ep->xfer_len - 1 + ep->maxpacket) / + ep->maxpacket; + dwc_write_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz, deptsiz.d32); + + /* Write the DMA register */ + dwc_write_reg32 (&(core_if->dev_if->in_ep_regs[ep->num]->diepdma), (uint32_t)ep->dma_addr); + + } else { + deptsiz.b.pktcnt = + (ep->xfer_len + (ep->maxpacket - 1)) / + ep->maxpacket; + deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket; + + dwc_write_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doeptsiz, deptsiz.d32); + + /* Write the DMA register */ + dwc_write_reg32 (&(core_if->dev_if->out_ep_regs[ep->num]->doepdma), (uint32_t)ep->dma_addr); + + } + /** Enable endpoint, clear nak */ + depctl.d32 = 0; + dwc_modify_reg32(addr, depctl.d32,depctl.d32); + + depctl.b.epena = 1; + depctl.b.cnak = 1; + + dwc_modify_reg32(addr, depctl.d32,depctl.d32); + } +} + + +/** + * This function does the setup for a data transfer for an EP and + * starts the transfer. For an IN transfer, the packets will be + * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, + * the packets are unloaded from the Rx FIFO in the ISR. the ISR. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + */ + +void dwc_otg_iso_ep_start_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + if(core_if->dma_enable) { + if(core_if->dma_desc_enable) { + if(ep->is_in) { + ep->desc_cnt = ep->pkt_cnt / ep->pkt_per_frm; + } else { + ep->desc_cnt = ep->pkt_cnt; + } + dwc_otg_iso_ep_start_ddma_transfer(core_if, ep); + } else { + if(core_if->pti_enh_enable) { + dwc_otg_iso_ep_start_buf_transfer(core_if, ep); + } else { + ep->cur_pkt_addr = (ep->proc_buf_num) ? ep->xfer_buff1 : ep->xfer_buff0; + ep->cur_pkt_dma_addr = (ep->proc_buf_num) ? ep->dma_addr1 : ep->dma_addr0; + dwc_otg_iso_ep_start_frm_transfer(core_if, ep); + } + } + } else { + ep->cur_pkt_addr = (ep->proc_buf_num) ? ep->xfer_buff1 : ep->xfer_buff0; + ep->cur_pkt_dma_addr = (ep->proc_buf_num) ? ep->dma_addr1 : ep->dma_addr0; + dwc_otg_iso_ep_start_frm_transfer(core_if, ep); + } +} + +/** + * This function does the setup for a data transfer for an EP and + * starts the transfer. For an IN transfer, the packets will be + * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, + * the packets are unloaded from the Rx FIFO in the ISR. the ISR. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + */ + +void dwc_otg_iso_ep_stop_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + depctl_data_t depctl = { .d32 = 0 }; + volatile uint32_t *addr; + + if(ep->is_in == 1) { + addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; + } + else { + addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; + } + + /* disable the ep */ + depctl.d32 = dwc_read_reg32(addr); + + depctl.b.epdis = 1; + depctl.b.snak = 1; + + dwc_write_reg32(addr, depctl.d32); + + if(core_if->dma_desc_enable && + ep->iso_desc_addr && ep->iso_dma_desc_addr) { + dwc_otg_ep_free_desc_chain(ep->iso_desc_addr,ep->iso_dma_desc_addr,ep->desc_cnt * 2); + } + + /* reset varibales */ + ep->dma_addr0 = 0; + ep->dma_addr1 = 0; + ep->xfer_buff0 = 0; + ep->xfer_buff1 = 0; + ep->data_per_frame = 0; + ep->data_pattern_frame = 0; + ep->sync_frame = 0; + ep->buf_proc_intrvl = 0; + ep->bInterval = 0; + ep->proc_buf_num = 0; + ep->pkt_per_frm = 0; + ep->pkt_per_frm = 0; + ep->desc_cnt = 0; + ep->iso_desc_addr = 0; + ep->iso_dma_desc_addr = 0; +} + + +/** + * This function is used to submit an ISOC Transfer Request to an EP. + * + * - Every time a sync period completes the request's completion callback + * is called to provide data to the gadget driver. + * - Once submitted the request cannot be modified. + * - Each request is turned into periodic data packets untill ISO + * Transfer is stopped.. + */ +static int dwc_otg_pcd_iso_ep_start(struct usb_ep *usb_ep, struct usb_iso_request *req, + gfp_t gfp_flags) +{ + dwc_otg_pcd_ep_t *ep; + dwc_otg_pcd_t *pcd; + dwc_ep_t *dwc_ep; + unsigned long flags = 0; + int32_t frm_data; + dwc_otg_core_if_t *core_if; + dcfg_data_t dcfg; + dsts_data_t dsts; + + + if (!req || !req->process_buffer || !req->buf0 || !req->buf1) { + DWC_WARN("%s, bad params\n", __func__); + return -EINVAL; + } + + ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); + + if (!usb_ep || !ep->desc || ep->dwc_ep.num == 0) { + DWC_WARN("%s, bad ep\n", __func__); + return -EINVAL; + } + + pcd = ep->pcd; + core_if = GET_CORE_IF(pcd); + + dcfg.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dcfg); + + if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) { + DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n", pcd->gadget.speed); + DWC_WARN("%s, bogus device state\n", __func__); + return -ESHUTDOWN; + } + + SPIN_LOCK_IRQSAVE(&ep->pcd->lock, flags); + + dwc_ep = &ep->dwc_ep; + + if(ep->iso_req) { + DWC_WARN("%s, iso request in progress\n", __func__); + } + req->status = -EINPROGRESS; + + dwc_ep->dma_addr0 = req->dma0; + dwc_ep->dma_addr1 = req->dma1; + + dwc_ep->xfer_buff0 = req->buf0; + dwc_ep->xfer_buff1 = req->buf1; + + ep->iso_req = req; + + dwc_ep->data_per_frame = req->data_per_frame; + + /** @todo - pattern data support is to be implemented in the future */ + dwc_ep->data_pattern_frame = req->data_pattern_frame; + dwc_ep->sync_frame = req->sync_frame; + + dwc_ep->buf_proc_intrvl = req->buf_proc_intrvl; + + dwc_ep->bInterval = 1 << (ep->desc->bInterval - 1); + + dwc_ep->proc_buf_num = 0; + + dwc_ep->pkt_per_frm = 0; + frm_data = ep->dwc_ep.data_per_frame; + while(frm_data > 0) { + dwc_ep->pkt_per_frm++; + frm_data -= ep->dwc_ep.maxpacket; + } + + dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); + + if(req->flags & USB_REQ_ISO_ASAP) { + dwc_ep->next_frame = dsts.b.soffn + 1; + if(dwc_ep->bInterval != 1){ + dwc_ep->next_frame = dwc_ep->next_frame + (dwc_ep->bInterval - 1 - dwc_ep->next_frame % dwc_ep->bInterval); + } + } else { + dwc_ep->next_frame = req->start_frame; + } + + + if(!core_if->pti_enh_enable) { + dwc_ep->pkt_cnt = dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm / dwc_ep->bInterval; + } else { + dwc_ep->pkt_cnt = + (dwc_ep->data_per_frame * (dwc_ep->buf_proc_intrvl / dwc_ep->bInterval) + - 1 + dwc_ep->maxpacket) / dwc_ep->maxpacket; + } + + if(core_if->dma_desc_enable) { + dwc_ep->desc_cnt = + dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm / dwc_ep->bInterval; + } + + dwc_ep->pkt_info = kmalloc(sizeof(iso_pkt_info_t) * dwc_ep->pkt_cnt, GFP_KERNEL); + if(!dwc_ep->pkt_info) { + return -ENOMEM; + } + if(core_if->pti_enh_enable) { + memset(dwc_ep->pkt_info, 0, sizeof(iso_pkt_info_t) * dwc_ep->pkt_cnt); + } + + dwc_ep->cur_pkt = 0; + + SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); + + dwc_otg_iso_ep_start_transfer(core_if, dwc_ep); + + return 0; +} + +/** + * This function stops ISO EP Periodic Data Transfer. + */ +static int dwc_otg_pcd_iso_ep_stop(struct usb_ep *usb_ep, struct usb_iso_request *req) +{ + dwc_otg_pcd_ep_t *ep; + dwc_otg_pcd_t *pcd; + dwc_ep_t *dwc_ep; + unsigned long flags; + + ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); + + if (!usb_ep || !ep->desc || ep->dwc_ep.num == 0) { + DWC_WARN("%s, bad ep\n", __func__); + return -EINVAL; + } + + pcd = ep->pcd; + + if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) { + DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n", pcd->gadget.speed); + DWC_WARN("%s, bogus device state\n", __func__); + return -ESHUTDOWN; + } + + dwc_ep = &ep->dwc_ep; + + dwc_otg_iso_ep_stop_transfer(GET_CORE_IF(pcd), dwc_ep); + + kfree(dwc_ep->pkt_info); + + SPIN_LOCK_IRQSAVE(&pcd->lock, flags); + + if(ep->iso_req != req) { + return -EINVAL; + } + + req->status = -ECONNRESET; + + SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); + + + ep->iso_req = 0; + + return 0; +} + +/** + * This function is used for perodical data exchnage between PCD and gadget drivers. + * for Isochronous EPs + * + * - Every time a sync period completes this function is called to + * perform data exchange between PCD and gadget + */ +void dwc_otg_iso_buffer_done(dwc_otg_pcd_ep_t *ep, dwc_otg_pcd_iso_request_t *req) +{ + int i; + struct usb_gadget_iso_packet_descriptor *iso_packet; + dwc_ep_t *dwc_ep; + + dwc_ep = &ep->dwc_ep; + + if(ep->iso_req->status == -ECONNRESET) { + DWC_PRINT("Device has already disconnected\n"); + /*Device has been disconnected*/ + return; + } + + if(dwc_ep->proc_buf_num != 0) { + iso_packet = ep->iso_req->iso_packet_desc0; + } + + else { + iso_packet = ep->iso_req->iso_packet_desc1; + } + + /* Fill in ISOC packets descriptors & pass to gadget driver*/ + + for(i = 0; i < dwc_ep->pkt_cnt; ++i) { + iso_packet[i].status = dwc_ep->pkt_info[i].status; + iso_packet[i].offset = dwc_ep->pkt_info[i].offset; + iso_packet[i].actual_length = dwc_ep->pkt_info[i].length; + dwc_ep->pkt_info[i].status = 0; + dwc_ep->pkt_info[i].offset = 0; + dwc_ep->pkt_info[i].length = 0; + } + + /* Call callback function to process data buffer */ + ep->iso_req->status = 0;/* success */ + + SPIN_UNLOCK(&ep->pcd->lock); + ep->iso_req->process_buffer(&ep->ep, ep->iso_req); + SPIN_LOCK(&ep->pcd->lock); +} + + +static struct usb_iso_request *dwc_otg_pcd_alloc_iso_request(struct usb_ep *ep,int packets, + gfp_t gfp_flags) +{ + struct usb_iso_request *pReq = NULL; + uint32_t req_size; + + + req_size = sizeof(struct usb_iso_request); + req_size += (2 * packets * (sizeof(struct usb_gadget_iso_packet_descriptor))); + + + pReq = kmalloc(req_size, gfp_flags); + if (!pReq) { + DWC_WARN("%s, can't allocate Iso Request\n", __func__); + return 0; + } + pReq->iso_packet_desc0 = (void*) (pReq + 1); + + pReq->iso_packet_desc1 = pReq->iso_packet_desc0 + packets; + + return pReq; +} + +static void dwc_otg_pcd_free_iso_request(struct usb_ep *ep, struct usb_iso_request *req) +{ + kfree(req); +} + +static struct usb_isoc_ep_ops dwc_otg_pcd_ep_ops = +{ + .ep_ops = + { + .enable = dwc_otg_pcd_ep_enable, + .disable = dwc_otg_pcd_ep_disable, + + .alloc_request = dwc_otg_pcd_alloc_request, + .free_request = dwc_otg_pcd_free_request, + + //.alloc_buffer = dwc_otg_pcd_alloc_buffer, + //.free_buffer = dwc_otg_pcd_free_buffer, + + .queue = dwc_otg_pcd_ep_queue, + .dequeue = dwc_otg_pcd_ep_dequeue, + + .set_halt = dwc_otg_pcd_ep_set_halt, + .fifo_status = 0, + .fifo_flush = 0, + }, + .iso_ep_start = dwc_otg_pcd_iso_ep_start, + .iso_ep_stop = dwc_otg_pcd_iso_ep_stop, + .alloc_iso_request = dwc_otg_pcd_alloc_iso_request, + .free_iso_request = dwc_otg_pcd_free_iso_request, +}; + +#else + + +static struct usb_ep_ops dwc_otg_pcd_ep_ops = +{ + .enable = dwc_otg_pcd_ep_enable, + .disable = dwc_otg_pcd_ep_disable, + + .alloc_request = dwc_otg_pcd_alloc_request, + .free_request = dwc_otg_pcd_free_request, + +// .alloc_buffer = dwc_otg_pcd_alloc_buffer, +// .free_buffer = dwc_otg_pcd_free_buffer, + + .queue = dwc_otg_pcd_ep_queue, + .dequeue = dwc_otg_pcd_ep_dequeue, + + .set_halt = dwc_otg_pcd_ep_set_halt, + .fifo_status = 0, + .fifo_flush = 0, + + +}; + +#endif /* DWC_EN_ISOC */ +/* Gadget Operations */ +/** + * The following gadget operations will be implemented in the DWC_otg + * PCD. Functions in the API that are not described below are not + * implemented. + * + * The Gadget API provides wrapper functions for each of the function + * pointers defined in usb_gadget_ops. The Gadget Driver calls the + * wrapper function, which then calls the underlying PCD function. The + * following sections are named according to the wrapper functions + * (except for ioctl, which doesn't have a wrapper function). Within + * each section, the corresponding DWC_otg PCD function name is + * specified. + * + */ + +/** + *Gets the USB Frame number of the last SOF. + */ +static int dwc_otg_pcd_get_frame(struct usb_gadget *gadget) +{ + dwc_otg_pcd_t *pcd; + + DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, gadget); + + if (gadget == 0) { + return -ENODEV; + } + else { + pcd = container_of(gadget, dwc_otg_pcd_t, gadget); + dwc_otg_get_frame_number(GET_CORE_IF(pcd)); + } + + return 0; +} + +void dwc_otg_pcd_initiate_srp(dwc_otg_pcd_t *pcd) +{ + uint32_t *addr = (uint32_t *)&(GET_CORE_IF(pcd)->core_global_regs->gotgctl); + gotgctl_data_t mem; + gotgctl_data_t val; + + val.d32 = dwc_read_reg32(addr); + if (val.b.sesreq) { + DWC_ERROR("Session Request Already active!\n"); + return; + } + + DWC_NOTICE("Session Request Initated\n"); + mem.d32 = dwc_read_reg32(addr); + mem.b.sesreq = 1; + dwc_write_reg32(addr, mem.d32); + + /* Start the SRP timer */ + dwc_otg_pcd_start_srp_timer(pcd); + return; +} + +void dwc_otg_pcd_remote_wakeup(dwc_otg_pcd_t *pcd, int set) +{ + dctl_data_t dctl = {.d32=0}; + volatile uint32_t *addr = &(GET_CORE_IF(pcd)->dev_if->dev_global_regs->dctl); + + if (dwc_otg_is_device_mode(GET_CORE_IF(pcd))) { + if (pcd->remote_wakeup_enable) { + if (set) { + dctl.b.rmtwkupsig = 1; + dwc_modify_reg32(addr, 0, dctl.d32); + DWC_DEBUGPL(DBG_PCD, "Set Remote Wakeup\n"); + mdelay(1); + dwc_modify_reg32(addr, dctl.d32, 0); + DWC_DEBUGPL(DBG_PCD, "Clear Remote Wakeup\n"); + } + else { + } + } + else { + DWC_DEBUGPL(DBG_PCD, "Remote Wakeup is disabled\n"); + } + } + return; +} + +/** + * Initiates Session Request Protocol (SRP) to wakeup the host if no + * session is in progress. If a session is already in progress, but + * the device is suspended, remote wakeup signaling is started. + * + */ +static int dwc_otg_pcd_wakeup(struct usb_gadget *gadget) +{ + unsigned long flags; + dwc_otg_pcd_t *pcd; + dsts_data_t dsts; + gotgctl_data_t gotgctl; + + DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, gadget); + + if (gadget == 0) { + return -ENODEV; + } + else { + pcd = container_of(gadget, dwc_otg_pcd_t, gadget); + } + SPIN_LOCK_IRQSAVE(&pcd->lock, flags); + + /* + * This function starts the Protocol if no session is in progress. If + * a session is already in progress, but the device is suspended, + * remote wakeup signaling is started. + */ + + /* Check if valid session */ + gotgctl.d32 = dwc_read_reg32(&(GET_CORE_IF(pcd)->core_global_regs->gotgctl)); + if (gotgctl.b.bsesvld) { + /* Check if suspend state */ + dsts.d32 = dwc_read_reg32(&(GET_CORE_IF(pcd)->dev_if->dev_global_regs->dsts)); + if (dsts.b.suspsts) { + dwc_otg_pcd_remote_wakeup(pcd, 1); + } + } + else { + dwc_otg_pcd_initiate_srp(pcd); + } + + SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); + return 0; +} + +static const struct usb_gadget_ops dwc_otg_pcd_ops = +{ + .get_frame = dwc_otg_pcd_get_frame, + .wakeup = dwc_otg_pcd_wakeup, + // current versions must always be self-powered +}; + +/** + * This function updates the otg values in the gadget structure. + */ +void dwc_otg_pcd_update_otg(dwc_otg_pcd_t *pcd, const unsigned reset) +{ + + if (!pcd->gadget.is_otg) + return; + + if (reset) { + pcd->b_hnp_enable = 0; + pcd->a_hnp_support = 0; + pcd->a_alt_hnp_support = 0; + } + + pcd->gadget.b_hnp_enable = pcd->b_hnp_enable; + pcd->gadget.a_hnp_support = pcd->a_hnp_support; + pcd->gadget.a_alt_hnp_support = pcd->a_alt_hnp_support; +} + +/** + * This function is the top level PCD interrupt handler. + */ +static irqreturn_t dwc_otg_pcd_irq(int irq, void *dev) +{ + dwc_otg_pcd_t *pcd = dev; + int32_t retval = IRQ_NONE; + + retval = dwc_otg_pcd_handle_intr(pcd); + return IRQ_RETVAL(retval); +} + +/** + * PCD Callback function for initializing the PCD when switching to + * device mode. + * + * @param p void pointer to the <code>dwc_otg_pcd_t</code> + */ +static int32_t dwc_otg_pcd_start_cb(void *p) +{ + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)p; + + /* + * Initialized the Core for Device mode. + */ + if (dwc_otg_is_device_mode(GET_CORE_IF(pcd))) { + dwc_otg_core_dev_init(GET_CORE_IF(pcd)); + } + return 1; +} + +/** + * PCD Callback function for stopping the PCD when switching to Host + * mode. + * + * @param p void pointer to the <code>dwc_otg_pcd_t</code> + */ +static int32_t dwc_otg_pcd_stop_cb(void *p) +{ + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)p; + extern void dwc_otg_pcd_stop(dwc_otg_pcd_t *_pcd); + + dwc_otg_pcd_stop(pcd); + return 1; +} + + +/** + * PCD Callback function for notifying the PCD when resuming from + * suspend. + * + * @param p void pointer to the <code>dwc_otg_pcd_t</code> + */ +static int32_t dwc_otg_pcd_suspend_cb(void *p) +{ + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)p; + + if (pcd->driver && pcd->driver->resume) { + SPIN_UNLOCK(&pcd->lock); + pcd->driver->suspend(&pcd->gadget); + SPIN_LOCK(&pcd->lock); + } + + return 1; +} + + +/** + * PCD Callback function for notifying the PCD when resuming from + * suspend. + * + * @param p void pointer to the <code>dwc_otg_pcd_t</code> + */ +static int32_t dwc_otg_pcd_resume_cb(void *p) +{ + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)p; + + if (pcd->driver && pcd->driver->resume) { + SPIN_UNLOCK(&pcd->lock); + pcd->driver->resume(&pcd->gadget); + SPIN_LOCK(&pcd->lock); + } + + /* Stop the SRP timeout timer. */ + if ((GET_CORE_IF(pcd)->core_params->phy_type != DWC_PHY_TYPE_PARAM_FS) || + (!GET_CORE_IF(pcd)->core_params->i2c_enable)) { + if (GET_CORE_IF(pcd)->srp_timer_started) { + GET_CORE_IF(pcd)->srp_timer_started = 0; + del_timer(&pcd->srp_timer); + } + } + return 1; +} + + +/** + * PCD Callback structure for handling mode switching. + */ +static dwc_otg_cil_callbacks_t pcd_callbacks = +{ + .start = dwc_otg_pcd_start_cb, + .stop = dwc_otg_pcd_stop_cb, + .suspend = dwc_otg_pcd_suspend_cb, + .resume_wakeup = dwc_otg_pcd_resume_cb, + .p = 0, /* Set at registration */ +}; + +/** + * This function is called when the SRP timer expires. The SRP should + * complete within 6 seconds. + */ +static void srp_timeout(unsigned long ptr) +{ + gotgctl_data_t gotgctl; + dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *)ptr; + volatile uint32_t *addr = &core_if->core_global_regs->gotgctl; + + gotgctl.d32 = dwc_read_reg32(addr); + + core_if->srp_timer_started = 0; + + if ((core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS) && + (core_if->core_params->i2c_enable)) { + DWC_PRINT("SRP Timeout\n"); + + if ((core_if->srp_success) && + (gotgctl.b.bsesvld)) { + if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) { + core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p); + } + + /* Clear Session Request */ + gotgctl.d32 = 0; + gotgctl.b.sesreq = 1; + dwc_modify_reg32(&core_if->core_global_regs->gotgctl, + gotgctl.d32, 0); + + core_if->srp_success = 0; + } + else { + DWC_ERROR("Device not connected/responding\n"); + gotgctl.b.sesreq = 0; + dwc_write_reg32(addr, gotgctl.d32); + } + } + else if (gotgctl.b.sesreq) { + DWC_PRINT("SRP Timeout\n"); + + DWC_ERROR("Device not connected/responding\n"); + gotgctl.b.sesreq = 0; + dwc_write_reg32(addr, gotgctl.d32); + } + else { + DWC_PRINT(" SRP GOTGCTL=%0x\n", gotgctl.d32); + } +} + +/** + * Start the SRP timer to detect when the SRP does not complete within + * 6 seconds. + * + * @param pcd the pcd structure. + */ +void dwc_otg_pcd_start_srp_timer(dwc_otg_pcd_t *pcd) +{ + struct timer_list *srp_timer = &pcd->srp_timer; + GET_CORE_IF(pcd)->srp_timer_started = 1; + init_timer(srp_timer); + srp_timer->function = srp_timeout; + srp_timer->data = (unsigned long)GET_CORE_IF(pcd); + srp_timer->expires = jiffies + (HZ*6); + add_timer(srp_timer); +} + +/** + * Tasklet + * + */ +extern void start_next_request(dwc_otg_pcd_ep_t *ep); + +static void start_xfer_tasklet_func (unsigned long data) +{ + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t*)data; + dwc_otg_core_if_t *core_if = pcd->otg_dev->core_if; + + int i; + depctl_data_t diepctl; + + DWC_DEBUGPL(DBG_PCDV, "Start xfer tasklet\n"); + + diepctl.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[0]->diepctl); + + if (pcd->ep0.queue_sof) { + pcd->ep0.queue_sof = 0; + start_next_request (&pcd->ep0); + // break; + } + + for (i=0; i<core_if->dev_if->num_in_eps; i++) + { + depctl_data_t diepctl; + diepctl.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[i]->diepctl); + + if (pcd->in_ep[i].queue_sof) { + pcd->in_ep[i].queue_sof = 0; + start_next_request (&pcd->in_ep[i]); + // break; + } + } + + return; +} + + + + + + + +static struct tasklet_struct start_xfer_tasklet = { + .next = NULL, + .state = 0, + .count = ATOMIC_INIT(0), + .func = start_xfer_tasklet_func, + .data = 0, +}; +/** + * This function initialized the pcd Dp structures to there default + * state. + * + * @param pcd the pcd structure. + */ +void dwc_otg_pcd_reinit(dwc_otg_pcd_t *pcd) +{ + static const char * names[] = + { + + "ep0", + "ep1in", + "ep2in", + "ep3in", + "ep4in", + "ep5in", + "ep6in", + "ep7in", + "ep8in", + "ep9in", + "ep10in", + "ep11in", + "ep12in", + "ep13in", + "ep14in", + "ep15in", + "ep1out", + "ep2out", + "ep3out", + "ep4out", + "ep5out", + "ep6out", + "ep7out", + "ep8out", + "ep9out", + "ep10out", + "ep11out", + "ep12out", + "ep13out", + "ep14out", + "ep15out" + + }; + + int i; + int in_ep_cntr, out_ep_cntr; + uint32_t hwcfg1; + uint32_t num_in_eps = (GET_CORE_IF(pcd))->dev_if->num_in_eps; + uint32_t num_out_eps = (GET_CORE_IF(pcd))->dev_if->num_out_eps; + dwc_otg_pcd_ep_t *ep; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, pcd); + + INIT_LIST_HEAD (&pcd->gadget.ep_list); + pcd->gadget.ep0 = &pcd->ep0.ep; + pcd->gadget.speed = USB_SPEED_UNKNOWN; + + INIT_LIST_HEAD (&pcd->gadget.ep0->ep_list); + + /** + * Initialize the EP0 structure. + */ + ep = &pcd->ep0; + + /* Init EP structure */ + ep->desc = 0; + ep->pcd = pcd; + ep->stopped = 1; + + /* Init DWC ep structure */ + ep->dwc_ep.num = 0; + ep->dwc_ep.active = 0; + ep->dwc_ep.tx_fifo_num = 0; + /* Control until ep is actvated */ + ep->dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL; + ep->dwc_ep.maxpacket = MAX_PACKET_SIZE; + ep->dwc_ep.dma_addr = 0; + ep->dwc_ep.start_xfer_buff = 0; + ep->dwc_ep.xfer_buff = 0; + ep->dwc_ep.xfer_len = 0; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = 0; + ep->queue_sof = 0; + ep->dwc_ep.desc_addr = 0; + ep->dwc_ep.dma_desc_addr = 0; + + ep->dwc_ep.aligned_buf=NULL; + ep->dwc_ep.aligned_buf_size=0; + ep->dwc_ep.aligned_dma_addr=0; + + + /* Init the usb_ep structure. */ + ep->ep.name = names[0]; + ep->ep.ops = (struct usb_ep_ops*)&dwc_otg_pcd_ep_ops; + + /** + * @todo NGS: What should the max packet size be set to + * here? Before EP type is set? + */ + ep->ep.maxpacket = MAX_PACKET_SIZE; + + list_add_tail (&ep->ep.ep_list, &pcd->gadget.ep_list); + + INIT_LIST_HEAD (&ep->queue); + /** + * Initialize the EP structures. + */ + in_ep_cntr = 0; + hwcfg1 = (GET_CORE_IF(pcd))->hwcfg1.d32 >> 3; + + for (i = 1; in_ep_cntr < num_in_eps; i++) + { + if((hwcfg1 & 0x1) == 0) { + dwc_otg_pcd_ep_t *ep = &pcd->in_ep[in_ep_cntr]; + in_ep_cntr ++; + + /* Init EP structure */ + ep->desc = 0; + ep->pcd = pcd; + ep->stopped = 1; + + /* Init DWC ep structure */ + ep->dwc_ep.is_in = 1; + ep->dwc_ep.num = i; + ep->dwc_ep.active = 0; + ep->dwc_ep.tx_fifo_num = 0; + + /* Control until ep is actvated */ + ep->dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL; + ep->dwc_ep.maxpacket = MAX_PACKET_SIZE; + ep->dwc_ep.dma_addr = 0; + ep->dwc_ep.start_xfer_buff = 0; + ep->dwc_ep.xfer_buff = 0; + ep->dwc_ep.xfer_len = 0; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = 0; + ep->queue_sof = 0; + ep->dwc_ep.desc_addr = 0; + ep->dwc_ep.dma_desc_addr = 0; + + /* Init the usb_ep structure. */ + ep->ep.name = names[i]; + ep->ep.ops = (struct usb_ep_ops*)&dwc_otg_pcd_ep_ops; + + /** + * @todo NGS: What should the max packet size be set to + * here? Before EP type is set? + */ + ep->ep.maxpacket = MAX_PACKET_SIZE; + + //add only even number ep as in + if((i%2)==1) + list_add_tail (&ep->ep.ep_list, &pcd->gadget.ep_list); + + INIT_LIST_HEAD (&ep->queue); + } + hwcfg1 >>= 2; + } + + out_ep_cntr = 0; + hwcfg1 = (GET_CORE_IF(pcd))->hwcfg1.d32 >> 2; + + for (i = 1; out_ep_cntr < num_out_eps; i++) + { + if((hwcfg1 & 0x1) == 0) { + dwc_otg_pcd_ep_t *ep = &pcd->out_ep[out_ep_cntr]; + out_ep_cntr++; + + /* Init EP structure */ + ep->desc = 0; + ep->pcd = pcd; + ep->stopped = 1; + + /* Init DWC ep structure */ + ep->dwc_ep.is_in = 0; + ep->dwc_ep.num = i; + ep->dwc_ep.active = 0; + ep->dwc_ep.tx_fifo_num = 0; + /* Control until ep is actvated */ + ep->dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL; + ep->dwc_ep.maxpacket = MAX_PACKET_SIZE; + ep->dwc_ep.dma_addr = 0; + ep->dwc_ep.start_xfer_buff = 0; + ep->dwc_ep.xfer_buff = 0; + ep->dwc_ep.xfer_len = 0; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = 0; + ep->queue_sof = 0; + + /* Init the usb_ep structure. */ + ep->ep.name = names[15 + i]; + ep->ep.ops = (struct usb_ep_ops*)&dwc_otg_pcd_ep_ops; + /** + * @todo NGS: What should the max packet size be set to + * here? Before EP type is set? + */ + ep->ep.maxpacket = MAX_PACKET_SIZE; + + //add only odd number ep as out + if((i%2)==0) + list_add_tail (&ep->ep.ep_list, &pcd->gadget.ep_list); + + INIT_LIST_HEAD (&ep->queue); + } + hwcfg1 >>= 2; + } + + /* remove ep0 from the list. There is a ep0 pointer.*/ + list_del_init (&pcd->ep0.ep.ep_list); + + pcd->ep0state = EP0_DISCONNECT; + pcd->ep0.ep.maxpacket = MAX_EP0_SIZE; + pcd->ep0.dwc_ep.maxpacket = MAX_EP0_SIZE; + pcd->ep0.dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL; +} + +/** + * This function releases the Gadget device. + * required by device_unregister(). + * + * @todo Should this do something? Should it free the PCD? + */ +static void dwc_otg_pcd_gadget_release(struct device *dev) +{ + DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, dev); +} + + + +/** + * This function initialized the PCD portion of the driver. + * + */ +u8 dev_id[]="gadget"; +int dwc_otg_pcd_init(struct platform_device *pdev) +{ + static char pcd_name[] = "dwc_otg_pcd"; + dwc_otg_pcd_t *pcd; + dwc_otg_core_if_t* core_if; + dwc_otg_dev_if_t* dev_if; + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); + int retval = 0; + + + DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n",__func__, pdev); + /* + * Allocate PCD structure + */ + pcd = kmalloc(sizeof(dwc_otg_pcd_t), GFP_KERNEL); + + if (pcd == 0) { + return -ENOMEM; + } + + memset(pcd, 0, sizeof(dwc_otg_pcd_t)); + spin_lock_init(&pcd->lock); + + otg_dev->pcd = pcd; + s_pcd = pcd; + pcd->gadget.name = pcd_name; + + pcd->gadget.dev.init_name = dev_id; + pcd->otg_dev = platform_get_drvdata(pdev); + + pcd->gadget.dev.parent = &pdev->dev; + pcd->gadget.dev.release = dwc_otg_pcd_gadget_release; + pcd->gadget.ops = &dwc_otg_pcd_ops; + + core_if = GET_CORE_IF(pcd); + dev_if = core_if->dev_if; + + if(core_if->hwcfg4.b.ded_fifo_en) { + DWC_PRINT("Dedicated Tx FIFOs mode\n"); + } + else { + DWC_PRINT("Shared Tx FIFO mode\n"); + } + + /* If the module is set to FS or if the PHY_TYPE is FS then the gadget + * should not report as dual-speed capable. replace the following line + * with the block of code below it once the software is debugged for + * this. If is_dualspeed = 0 then the gadget driver should not report + * a device qualifier descriptor when queried. */ + if ((GET_CORE_IF(pcd)->core_params->speed == DWC_SPEED_PARAM_FULL) || + ((GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == 2) && + (GET_CORE_IF(pcd)->hwcfg2.b.fs_phy_type == 1) && + (GET_CORE_IF(pcd)->core_params->ulpi_fs_ls))) { + pcd->gadget.max_speed = USB_SPEED_FULL; + } + else { + pcd->gadget.max_speed = USB_SPEED_HIGH; + } + + if ((otg_dev->core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_DEVICE) || + (otg_dev->core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST) || + (otg_dev->core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) || + (otg_dev->core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) { + pcd->gadget.is_otg = 0; + } + else { + pcd->gadget.is_otg = 1; + } + + + pcd->driver = 0; + /* Register the gadget device */ +printk("%s: 1\n",__func__); + retval = device_register(&pcd->gadget.dev); + if (retval != 0) { + kfree (pcd); +printk("%s: 2\n",__func__); + return retval; + } + + + /* + * Initialized the Core for Device mode. + */ + if (dwc_otg_is_device_mode(core_if)) { + dwc_otg_core_dev_init(core_if); + } + + /* + * Initialize EP structures + */ + dwc_otg_pcd_reinit(pcd); + + /* + * Register the PCD Callbacks. + */ + dwc_otg_cil_register_pcd_callbacks(otg_dev->core_if, &pcd_callbacks, + pcd); + /* + * Setup interupt handler + */ + DWC_DEBUGPL(DBG_ANY, "registering handler for irq%d\n", otg_dev->irq); + retval = request_irq(otg_dev->irq, dwc_otg_pcd_irq, + IRQF_SHARED, pcd->gadget.name, pcd); + if (retval != 0) { + DWC_ERROR("request of irq%d failed\n", otg_dev->irq); + device_unregister(&pcd->gadget.dev); + kfree (pcd); + return -EBUSY; + } + + /* + * Initialize the DMA buffer for SETUP packets + */ + if (GET_CORE_IF(pcd)->dma_enable) { + pcd->setup_pkt = dma_alloc_coherent (NULL, sizeof (*pcd->setup_pkt) * 5, &pcd->setup_pkt_dma_handle, 0); + if (pcd->setup_pkt == 0) { + free_irq(otg_dev->irq, pcd); + device_unregister(&pcd->gadget.dev); + kfree (pcd); + return -ENOMEM; + } + + pcd->status_buf = dma_alloc_coherent (NULL, sizeof (uint16_t), &pcd->status_buf_dma_handle, 0); + if (pcd->status_buf == 0) { + dma_free_coherent(NULL, sizeof(*pcd->setup_pkt), pcd->setup_pkt, pcd->setup_pkt_dma_handle); + free_irq(otg_dev->irq, pcd); + device_unregister(&pcd->gadget.dev); + kfree (pcd); + return -ENOMEM; + } + + if (GET_CORE_IF(pcd)->dma_desc_enable) { + dev_if->setup_desc_addr[0] = dwc_otg_ep_alloc_desc_chain(&dev_if->dma_setup_desc_addr[0], 1); + dev_if->setup_desc_addr[1] = dwc_otg_ep_alloc_desc_chain(&dev_if->dma_setup_desc_addr[1], 1); + dev_if->in_desc_addr = dwc_otg_ep_alloc_desc_chain(&dev_if->dma_in_desc_addr, 1); + dev_if->out_desc_addr = dwc_otg_ep_alloc_desc_chain(&dev_if->dma_out_desc_addr, 1); + + if(dev_if->setup_desc_addr[0] == 0 + || dev_if->setup_desc_addr[1] == 0 + || dev_if->in_desc_addr == 0 + || dev_if->out_desc_addr == 0 ) { + + if(dev_if->out_desc_addr) + dwc_otg_ep_free_desc_chain(dev_if->out_desc_addr, dev_if->dma_out_desc_addr, 1); + if(dev_if->in_desc_addr) + dwc_otg_ep_free_desc_chain(dev_if->in_desc_addr, dev_if->dma_in_desc_addr, 1); + if(dev_if->setup_desc_addr[1]) + dwc_otg_ep_free_desc_chain(dev_if->setup_desc_addr[1], dev_if->dma_setup_desc_addr[1], 1); + if(dev_if->setup_desc_addr[0]) + dwc_otg_ep_free_desc_chain(dev_if->setup_desc_addr[0], dev_if->dma_setup_desc_addr[0], 1); + + + dma_free_coherent(NULL, sizeof(*pcd->status_buf), pcd->status_buf, pcd->setup_pkt_dma_handle); + dma_free_coherent(NULL, sizeof(*pcd->setup_pkt), pcd->setup_pkt, pcd->setup_pkt_dma_handle); + + free_irq(otg_dev->irq, pcd); + device_unregister(&pcd->gadget.dev); + kfree (pcd); + + return -ENOMEM; + } + } + } + else { + pcd->setup_pkt = kmalloc (sizeof (*pcd->setup_pkt) * 5, GFP_KERNEL); + if (pcd->setup_pkt == 0) { + free_irq(otg_dev->irq, pcd); + device_unregister(&pcd->gadget.dev); + kfree (pcd); + return -ENOMEM; + } + + pcd->status_buf = kmalloc (sizeof (uint16_t), GFP_KERNEL); + if (pcd->status_buf == 0) { + kfree(pcd->setup_pkt); + free_irq(otg_dev->irq, pcd); + device_unregister(&pcd->gadget.dev); + kfree (pcd); + return -ENOMEM; + } + } + + + /* Initialize tasklet */ + start_xfer_tasklet.data = (unsigned long)pcd; + pcd->start_xfer_tasklet = &start_xfer_tasklet; + + return 0; +} + +/** + * Cleanup the PCD. + */ +void dwc_otg_pcd_remove(struct platform_device *pdev) +{ + dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); + dwc_otg_pcd_t *pcd = otg_dev->pcd; + dwc_otg_dev_if_t* dev_if = GET_CORE_IF(pcd)->dev_if; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, pdev); + + /* + * Free the IRQ + */ + free_irq(otg_dev->irq, pcd); + + /* start with the driver above us */ + if (pcd->driver) { + /* should have been done already by driver model core */ + DWC_WARN("driver '%s' is still registered\n", + pcd->driver->driver.name); + usb_gadget_unregister_driver(pcd->driver); + } + device_unregister(&pcd->gadget.dev); + + if (GET_CORE_IF(pcd)->dma_enable) { + dma_free_coherent (NULL, sizeof (*pcd->setup_pkt) * 5, pcd->setup_pkt, pcd->setup_pkt_dma_handle); + dma_free_coherent (NULL, sizeof (uint16_t), pcd->status_buf, pcd->status_buf_dma_handle); + if (GET_CORE_IF(pcd)->dma_desc_enable) { + dwc_otg_ep_free_desc_chain(dev_if->setup_desc_addr[0], dev_if->dma_setup_desc_addr[0], 1); + dwc_otg_ep_free_desc_chain(dev_if->setup_desc_addr[1], dev_if->dma_setup_desc_addr[1], 1); + dwc_otg_ep_free_desc_chain(dev_if->in_desc_addr, dev_if->dma_in_desc_addr, 1); + dwc_otg_ep_free_desc_chain(dev_if->out_desc_addr, dev_if->dma_out_desc_addr, 1); + } + } + else { + kfree (pcd->setup_pkt); + kfree (pcd->status_buf); + } + + kfree(pcd); + otg_dev->pcd = 0; +} + +/** + * This function registers a gadget driver with the PCD. + * + * When a driver is successfully registered, it will receive control + * requests including set_configuration(), which enables non-control + * requests. then usb traffic follows until a disconnect is reported. + * then a host may connect again, or the driver might get unbound. + * + * @param driver The driver being registered + */ +int usb_gadget_probe_driver(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)) +{ + int retval; + + DWC_DEBUGPL(DBG_PCD, "registering gadget driver '%s'\n", driver->driver.name); + + if (!driver || driver->max_speed == USB_SPEED_UNKNOWN || + !bind || + !driver->unbind || + !driver->disconnect || + !driver->setup) { + DWC_DEBUGPL(DBG_PCDV,"EINVAL\n"); + return -EINVAL; + } + if (s_pcd == 0) { + DWC_DEBUGPL(DBG_PCDV,"ENODEV\n"); + return -ENODEV; + } + if (s_pcd->driver != 0) { + DWC_DEBUGPL(DBG_PCDV,"EBUSY (%p)\n", s_pcd->driver); + return -EBUSY; + } + + /* hook up the driver */ + s_pcd->driver = driver; + s_pcd->gadget.dev.driver = &driver->driver; + + DWC_DEBUGPL(DBG_PCD, "bind to driver %s\n", driver->driver.name); + retval = bind(&s_pcd->gadget); + if (retval) { + DWC_ERROR("bind to driver %s --> error %d\n", + driver->driver.name, retval); + s_pcd->driver = 0; + s_pcd->gadget.dev.driver = 0; + return retval; + } + DWC_DEBUGPL(DBG_ANY, "registered gadget driver '%s'\n", + driver->driver.name); + return 0; +} + +EXPORT_SYMBOL(usb_gadget_probe_driver); + +/** + * This function unregisters a gadget driver + * + * @param driver The driver being unregistered + */ +int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +{ + //DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, _driver); + + if (s_pcd == 0) { + DWC_DEBUGPL(DBG_ANY, "%s Return(%d): s_pcd==0\n", __func__, + -ENODEV); + return -ENODEV; + } + if (driver == 0 || driver != s_pcd->driver) { + DWC_DEBUGPL(DBG_ANY, "%s Return(%d): driver?\n", __func__, + -EINVAL); + return -EINVAL; + } + + driver->unbind(&s_pcd->gadget); + s_pcd->driver = 0; + + DWC_DEBUGPL(DBG_ANY, "unregistered driver '%s'\n", + driver->driver.name); + return 0; +} +EXPORT_SYMBOL(usb_gadget_unregister_driver); + +#endif /* DWC_HOST_ONLY */ diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_pcd.h b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_pcd.h new file mode 100644 index 0000000000..e75437c21e --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_pcd.h @@ -0,0 +1,292 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd.h $ + * $Revision: #36 $ + * $Date: 2008/09/26 $ + * $Change: 1103515 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_HOST_ONLY +#if !defined(__DWC_PCD_H__) +#define __DWC_PCD_H__ + +#include <linux/types.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/device.h> +#include <linux/platform_device.h> + +#include <linux/usb/ch9.h> +#include <linux/usb/gadget.h> + +#include <linux/interrupt.h> +#include <linux/dma-mapping.h> + +struct dwc_otg_device; + +#include "otg_cil.h" + +/** + * @file + * + * This file contains the structures, constants, and interfaces for + * the Perpherial Contoller Driver (PCD). + * + * The Peripheral Controller Driver (PCD) for Linux will implement the + * Gadget API, so that the existing Gadget drivers can be used. For + * the Mass Storage Function driver the File-backed USB Storage Gadget + * (FBS) driver will be used. The FBS driver supports the + * Control-Bulk (CB), Control-Bulk-Interrupt (CBI), and Bulk-Only + * transports. + * + */ + +/** Invalid DMA Address */ +#define DMA_ADDR_INVALID (~(dma_addr_t)0) +/** Maxpacket size for EP0 */ +#define MAX_EP0_SIZE 64 +/** Maxpacket size for any EP */ +#define MAX_PACKET_SIZE 1024 + +/** Max Transfer size for any EP */ +#define MAX_TRANSFER_SIZE 65535 + +/** Max DMA Descriptor count for any EP */ +#define MAX_DMA_DESC_CNT 64 + +/** + * Get the pointer to the core_if from the pcd pointer. + */ +#define GET_CORE_IF( _pcd ) (_pcd->otg_dev->core_if) + +/** + * States of EP0. + */ +typedef enum ep0_state +{ + EP0_DISCONNECT, /* no host */ + EP0_IDLE, + EP0_IN_DATA_PHASE, + EP0_OUT_DATA_PHASE, + EP0_IN_STATUS_PHASE, + EP0_OUT_STATUS_PHASE, + EP0_STALL, +} ep0state_e; + +/** Fordward declaration.*/ +struct dwc_otg_pcd; + +/** DWC_otg iso request structure. + * + */ +typedef struct usb_iso_request dwc_otg_pcd_iso_request_t; + +/** PCD EP structure. + * This structure describes an EP, there is an array of EPs in the PCD + * structure. + */ +typedef struct dwc_otg_pcd_ep +{ + /** USB EP data */ + struct usb_ep ep; + /** USB EP Descriptor */ + const struct usb_endpoint_descriptor *desc; + + /** queue of dwc_otg_pcd_requests. */ + struct list_head queue; + unsigned stopped : 1; + unsigned disabling : 1; + unsigned dma : 1; + unsigned queue_sof : 1; + +#ifdef DWC_EN_ISOC + /** DWC_otg Isochronous Transfer */ + struct usb_iso_request* iso_req; +#endif //DWC_EN_ISOC + + /** DWC_otg ep data. */ + dwc_ep_t dwc_ep; + + /** Pointer to PCD */ + struct dwc_otg_pcd *pcd; +}dwc_otg_pcd_ep_t; + + + +/** DWC_otg PCD Structure. + * This structure encapsulates the data for the dwc_otg PCD. + */ +typedef struct dwc_otg_pcd +{ + /** USB gadget */ + struct usb_gadget gadget; + /** USB gadget driver pointer*/ + struct usb_gadget_driver *driver; + /** The DWC otg device pointer. */ + struct dwc_otg_device *otg_dev; + + /** State of EP0 */ + ep0state_e ep0state; + /** EP0 Request is pending */ + unsigned ep0_pending : 1; + /** Indicates when SET CONFIGURATION Request is in process */ + unsigned request_config : 1; + /** The state of the Remote Wakeup Enable. */ + unsigned remote_wakeup_enable : 1; + /** The state of the B-Device HNP Enable. */ + unsigned b_hnp_enable : 1; + /** The state of A-Device HNP Support. */ + unsigned a_hnp_support : 1; + /** The state of the A-Device Alt HNP support. */ + unsigned a_alt_hnp_support : 1; + /** Count of pending Requests */ + unsigned request_pending; + + /** SETUP packet for EP0 + * This structure is allocated as a DMA buffer on PCD initialization + * with enough space for up to 3 setup packets. + */ + union + { + struct usb_ctrlrequest req; + uint32_t d32[2]; + } *setup_pkt; + + dma_addr_t setup_pkt_dma_handle; + + /** 2-byte dma buffer used to return status from GET_STATUS */ + uint16_t *status_buf; + dma_addr_t status_buf_dma_handle; + + /** EP0 */ + dwc_otg_pcd_ep_t ep0; + + /** Array of IN EPs. */ + dwc_otg_pcd_ep_t in_ep[ MAX_EPS_CHANNELS - 1]; + /** Array of OUT EPs. */ + dwc_otg_pcd_ep_t out_ep[ MAX_EPS_CHANNELS - 1]; + /** number of valid EPs in the above array. */ +// unsigned num_eps : 4; + spinlock_t lock; + /** Timer for SRP. If it expires before SRP is successful + * clear the SRP. */ + struct timer_list srp_timer; + + /** Tasklet to defer starting of TEST mode transmissions until + * Status Phase has been completed. + */ + struct tasklet_struct test_mode_tasklet; + + /** Tasklet to delay starting of xfer in DMA mode */ + struct tasklet_struct *start_xfer_tasklet; + + /** The test mode to enter when the tasklet is executed. */ + unsigned test_mode; + +} dwc_otg_pcd_t; + + +/** DWC_otg request structure. + * This structure is a list of requests. + */ +typedef struct +{ + struct usb_request req; /**< USB Request. */ + struct list_head queue; /**< queue of these requests. */ +} dwc_otg_pcd_request_t; + + +extern int dwc_otg_pcd_init(struct platform_device *pdev); + +//extern void dwc_otg_pcd_remove( struct dwc_otg_device *_otg_dev ); +extern void dwc_otg_pcd_remove( struct platform_device *pdev ); +extern int32_t dwc_otg_pcd_handle_intr( dwc_otg_pcd_t *pcd ); +extern void dwc_otg_pcd_start_srp_timer(dwc_otg_pcd_t *pcd ); + +extern void dwc_otg_pcd_initiate_srp(dwc_otg_pcd_t *pcd); +extern void dwc_otg_pcd_remote_wakeup(dwc_otg_pcd_t *pcd, int set); + +extern void dwc_otg_iso_buffer_done(dwc_otg_pcd_ep_t *ep, dwc_otg_pcd_iso_request_t *req); +extern void dwc_otg_request_done(dwc_otg_pcd_ep_t *_ep, dwc_otg_pcd_request_t *req, + int status); +extern void dwc_otg_request_nuke(dwc_otg_pcd_ep_t *_ep); +extern void dwc_otg_pcd_update_otg(dwc_otg_pcd_t *_pcd, + const unsigned reset); +#ifndef VERBOSE +#define VERIFY_PCD_DMA_ADDR(_addr_) BUG_ON(((_addr_)==DMA_ADDR_INVALID)||\ + ((_addr_)==0)||\ + ((_addr_)&0x3)) +#else +#define VERIFY_PCD_DMA_ADDR(_addr_) {\ + if(((_addr_)==DMA_ADDR_INVALID)||\ + ((_addr_)==0)||\ + ((_addr_)&0x3)) {\ + printk("%s: Invalid DMA address "#_addr_"(%.8x)\n",__func__,_addr_);\ + BUG();\ + }\ + } +#endif + + +static inline void ep_check_and_patch_dma_addr(dwc_otg_pcd_ep_t *ep){ +//void ep_check_and_patch_dma_addr(dwc_otg_pcd_ep_t *ep){ + dwc_ep_t *dwc_ep=&ep->dwc_ep; + +DWC_DEBUGPL(DBG_PCDV,"%s: dwc_ep xfer_buf=%.8x, total_len=%d, dma_addr=%.8x\n",__func__,(u32)dwc_ep->xfer_buff,(dwc_ep->total_len),dwc_ep->dma_addr); + if (/*(core_if->dma_enable)&&*/(dwc_ep->dma_addr==DMA_ADDR_INVALID)) { + if((((u32)dwc_ep->xfer_buff)&0x3)==0){ + dwc_ep->dma_addr=dma_map_single(NULL,(void *)(dwc_ep->start_xfer_buff),(dwc_ep->total_len), DMA_TO_DEVICE); +DWC_DEBUGPL(DBG_PCDV," got dma_addr=%.8x\n",dwc_ep->dma_addr); + }else{ +DWC_DEBUGPL(DBG_PCDV," buf not aligned, use aligned_buf instead. xfer_buf=%.8x, total_len=%d, aligned_buf_size=%d\n",(u32)dwc_ep->xfer_buff,(dwc_ep->total_len),dwc_ep->aligned_buf_size); + if(dwc_ep->aligned_buf_size<dwc_ep->total_len){ + if(dwc_ep->aligned_buf){ +//printk(" free buff dwc_ep aligned_buf_size=%d, aligned_buf(%.8x), aligned_dma_addr(%.8x));\n",dwc_ep->aligned_buf_size,dwc_ep->aligned_buf,dwc_ep->aligned_dma_addr); + //dma_free_coherent(NULL,dwc_ep->aligned_buf_size,dwc_ep->aligned_buf,dwc_ep->aligned_dma_addr); + kfree(dwc_ep->aligned_buf); + } + dwc_ep->aligned_buf_size=((1<<20)>(dwc_ep->total_len<<1))?(dwc_ep->total_len<<1):(1<<20); + //dwc_ep->aligned_buf = dma_alloc_coherent (NULL, dwc_ep->aligned_buf_size, &dwc_ep->aligned_dma_addr, GFP_KERNEL|GFP_DMA); + dwc_ep->aligned_buf=kmalloc(dwc_ep->aligned_buf_size,GFP_KERNEL|GFP_DMA|GFP_ATOMIC); + dwc_ep->aligned_dma_addr=dma_map_single(NULL,(void *)(dwc_ep->aligned_buf),(dwc_ep->aligned_buf_size),DMA_FROM_DEVICE); + if(!dwc_ep->aligned_buf){ + DWC_ERROR("Cannot alloc required buffer!!\n"); + BUG(); + } +DWC_DEBUGPL(DBG_PCDV," dwc_ep allocated aligned buf=%.8x, dma_addr=%.8x, size=%d(0x%x)\n", (u32)dwc_ep->aligned_buf, dwc_ep->aligned_dma_addr, dwc_ep->aligned_buf_size, dwc_ep->aligned_buf_size); + } + dwc_ep->dma_addr=dwc_ep->aligned_dma_addr; + if(dwc_ep->is_in) { + memcpy(dwc_ep->aligned_buf,dwc_ep->xfer_buff,dwc_ep->total_len); + dma_sync_single_for_device(NULL,dwc_ep->dma_addr,dwc_ep->total_len,DMA_TO_DEVICE); + } + } + } +} + +#endif +#endif /* DWC_HOST_ONLY */ diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_pcd_intr.c b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_pcd_intr.c new file mode 100644 index 0000000000..f3c74464b2 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_pcd_intr.c @@ -0,0 +1,3682 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd_intr.c $ + * $Revision: #83 $ + * $Date: 2008/10/14 $ + * $Change: 1115682 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_HOST_ONLY +#include <linux/interrupt.h> +#include <linux/dma-mapping.h> +#include <linux/version.h> +#include <linux/pci.h> + +#include "otg_driver.h" +#include "otg_pcd.h" + + +#define DEBUG_EP0 + + +/* request functions defined in "dwc_otg_pcd.c" */ + +/** @file + * This file contains the implementation of the PCD Interrupt handlers. + * + * The PCD handles the device interrupts. Many conditions can cause a + * device interrupt. When an interrupt occurs, the device interrupt + * service routine determines the cause of the interrupt and + * dispatches handling to the appropriate function. These interrupt + * handling functions are described below. + * All interrupt registers are processed from LSB to MSB. + */ + + +/** + * This function prints the ep0 state for debug purposes. + */ +static inline void print_ep0_state(dwc_otg_pcd_t *pcd) +{ +#ifdef DEBUG + char str[40]; + + switch (pcd->ep0state) { + case EP0_DISCONNECT: + strcpy(str, "EP0_DISCONNECT"); + break; + case EP0_IDLE: + strcpy(str, "EP0_IDLE"); + break; + case EP0_IN_DATA_PHASE: + strcpy(str, "EP0_IN_DATA_PHASE"); + break; + case EP0_OUT_DATA_PHASE: + strcpy(str, "EP0_OUT_DATA_PHASE"); + break; + case EP0_IN_STATUS_PHASE: + strcpy(str,"EP0_IN_STATUS_PHASE"); + break; + case EP0_OUT_STATUS_PHASE: + strcpy(str,"EP0_OUT_STATUS_PHASE"); + break; + case EP0_STALL: + strcpy(str,"EP0_STALL"); + break; + default: + strcpy(str,"EP0_INVALID"); + } + + DWC_DEBUGPL(DBG_ANY, "%s(%d)\n", str, pcd->ep0state); +#endif +} + +/** + * This function returns pointer to in ep struct with number ep_num + */ +static inline dwc_otg_pcd_ep_t* get_in_ep(dwc_otg_pcd_t *pcd, uint32_t ep_num) +{ + int i; + int num_in_eps = GET_CORE_IF(pcd)->dev_if->num_in_eps; + if(ep_num == 0) { + return &pcd->ep0; + } + else { + for(i = 0; i < num_in_eps; ++i) + { + if(pcd->in_ep[i].dwc_ep.num == ep_num) + return &pcd->in_ep[i]; + } + return 0; + } +} +/** + * This function returns pointer to out ep struct with number ep_num + */ +static inline dwc_otg_pcd_ep_t* get_out_ep(dwc_otg_pcd_t *pcd, uint32_t ep_num) +{ + int i; + int num_out_eps = GET_CORE_IF(pcd)->dev_if->num_out_eps; + if(ep_num == 0) { + return &pcd->ep0; + } + else { + for(i = 0; i < num_out_eps; ++i) + { + if(pcd->out_ep[i].dwc_ep.num == ep_num) + return &pcd->out_ep[i]; + } + return 0; + } +} +/** + * This functions gets a pointer to an EP from the wIndex address + * value of the control request. + */ +static dwc_otg_pcd_ep_t *get_ep_by_addr (dwc_otg_pcd_t *pcd, u16 wIndex) +{ + dwc_otg_pcd_ep_t *ep; + + if ((wIndex & USB_ENDPOINT_NUMBER_MASK) == 0) + return &pcd->ep0; + list_for_each_entry(ep, &pcd->gadget.ep_list, ep.ep_list) + { + u8 bEndpointAddress; + + if (!ep->desc) + continue; + + bEndpointAddress = ep->desc->bEndpointAddress; + if((wIndex & (USB_DIR_IN | USB_ENDPOINT_NUMBER_MASK)) + == (bEndpointAddress & (USB_DIR_IN | USB_ENDPOINT_NUMBER_MASK))) + return ep; + } + return NULL; +} + +/** + * This function checks the EP request queue, if the queue is not + * empty the next request is started. + */ +void start_next_request(dwc_otg_pcd_ep_t *ep) +{ + dwc_otg_pcd_request_t *req = 0; + uint32_t max_transfer = GET_CORE_IF(ep->pcd)->core_params->max_transfer_size; + if (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, + dwc_otg_pcd_request_t, queue); + + /* Setup and start the Transfer */ + ep->dwc_ep.dma_addr = req->req.dma; + ep->dwc_ep.start_xfer_buff = req->req.buf; + ep->dwc_ep.xfer_buff = req->req.buf; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = req->req.length; + ep->dwc_ep.xfer_len = 0; + ep->dwc_ep.xfer_count = 0; + + if(max_transfer > MAX_TRANSFER_SIZE) { + ep->dwc_ep.maxxfer = max_transfer - (max_transfer % ep->dwc_ep.maxpacket); + } else { + ep->dwc_ep.maxxfer = max_transfer; + } + + if(req->req.zero) { + if((ep->dwc_ep.total_len % ep->dwc_ep.maxpacket == 0) + && (ep->dwc_ep.total_len != 0)) { + ep->dwc_ep.sent_zlp = 1; + } + + } + ep_check_and_patch_dma_addr(ep); + dwc_otg_ep_start_transfer(GET_CORE_IF(ep->pcd), &ep->dwc_ep); + } +} + +/** + * This function handles the SOF Interrupts. At this time the SOF + * Interrupt is disabled. + */ +int32_t dwc_otg_pcd_handle_sof_intr(dwc_otg_pcd_t *pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + + gintsts_data_t gintsts; + + DWC_DEBUGPL(DBG_PCD, "SOF\n"); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.sofintr = 1; + dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + + +/** + * This function handles the Rx Status Queue Level Interrupt, which + * indicates that there is a least one packet in the Rx FIFO. The + * packets are moved from the FIFO to memory, where they will be + * processed when the Endpoint Interrupt Register indicates Transfer + * Complete or SETUP Phase Done. + * + * Repeat the following until the Rx Status Queue is empty: + * -# Read the Receive Status Pop Register (GRXSTSP) to get Packet + * info + * -# If Receive FIFO is empty then skip to step Clear the interrupt + * and exit + * -# If SETUP Packet call dwc_otg_read_setup_packet to copy the + * SETUP data to the buffer + * -# If OUT Data Packet call dwc_otg_read_packet to copy the data + * to the destination buffer + */ +int32_t dwc_otg_pcd_handle_rx_status_q_level_intr(dwc_otg_pcd_t *pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + gintmsk_data_t gintmask = {.d32=0}; + device_grxsts_data_t status; + dwc_otg_pcd_ep_t *ep; + gintsts_data_t gintsts; +#ifdef DEBUG + static char *dpid_str[] ={ "D0", "D2", "D1", "MDATA" }; +#endif + + //DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, _pcd); + /* Disable the Rx Status Queue Level interrupt */ + gintmask.b.rxstsqlvl= 1; + dwc_modify_reg32(&global_regs->gintmsk, gintmask.d32, 0); + + /* Get the Status from the top of the FIFO */ + status.d32 = dwc_read_reg32(&global_regs->grxstsp); + + DWC_DEBUGPL(DBG_PCD, "EP:%d BCnt:%d DPID:%s " + "pktsts:%x Frame:%d(0x%0x)\n", + status.b.epnum, status.b.bcnt, + dpid_str[status.b.dpid], + status.b.pktsts, status.b.fn, status.b.fn); + /* Get pointer to EP structure */ + ep = get_out_ep(pcd, status.b.epnum); + + switch (status.b.pktsts) { + case DWC_DSTS_GOUT_NAK: + DWC_DEBUGPL(DBG_PCDV, "Global OUT NAK\n"); + break; + case DWC_STS_DATA_UPDT: + DWC_DEBUGPL(DBG_PCDV, "OUT Data Packet\n"); + if (status.b.bcnt && ep->dwc_ep.xfer_buff) { + /** @todo NGS Check for buffer overflow? */ + dwc_otg_read_packet(core_if, + ep->dwc_ep.xfer_buff, + status.b.bcnt); + ep->dwc_ep.xfer_count += status.b.bcnt; + ep->dwc_ep.xfer_buff += status.b.bcnt; + } + break; + case DWC_STS_XFER_COMP: + DWC_DEBUGPL(DBG_PCDV, "OUT Complete\n"); + break; + case DWC_DSTS_SETUP_COMP: +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "Setup Complete\n"); +#endif + break; +case DWC_DSTS_SETUP_UPDT: + dwc_otg_read_setup_packet(core_if, pcd->setup_pkt->d32); +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, + "SETUP PKT: %02x.%02x v%04x i%04x l%04x\n", + pcd->setup_pkt->req.bRequestType, + pcd->setup_pkt->req.bRequest, + pcd->setup_pkt->req.wValue, + pcd->setup_pkt->req.wIndex, + pcd->setup_pkt->req.wLength); +#endif + ep->dwc_ep.xfer_count += status.b.bcnt; + break; + default: + DWC_DEBUGPL(DBG_PCDV, "Invalid Packet Status (0x%0x)\n", + status.b.pktsts); + break; + } + + /* Enable the Rx Status Queue Level interrupt */ + dwc_modify_reg32(&global_regs->gintmsk, 0, gintmask.d32); + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.rxstsqlvl = 1; + dwc_write_reg32 (&global_regs->gintsts, gintsts.d32); + + //DWC_DEBUGPL(DBG_PCDV, "EXIT: %s\n", __func__); + return 1; +} +/** + * This function examines the Device IN Token Learning Queue to + * determine the EP number of the last IN token received. This + * implementation is for the Mass Storage device where there are only + * 2 IN EPs (Control-IN and BULK-IN). + * + * The EP numbers for the first six IN Tokens are in DTKNQR1 and there + * are 8 EP Numbers in each of the other possible DTKNQ Registers. + * + * @param core_if Programming view of DWC_otg controller. + * + */ +static inline int get_ep_of_last_in_token(dwc_otg_core_if_t *core_if) +{ + dwc_otg_device_global_regs_t *dev_global_regs = + core_if->dev_if->dev_global_regs; + const uint32_t TOKEN_Q_DEPTH = core_if->hwcfg2.b.dev_token_q_depth; + /* Number of Token Queue Registers */ + const int DTKNQ_REG_CNT = (TOKEN_Q_DEPTH + 7) / 8; + dtknq1_data_t dtknqr1; + uint32_t in_tkn_epnums[4]; + int ndx = 0; + int i = 0; + volatile uint32_t *addr = &dev_global_regs->dtknqr1; + int epnum = 0; + + //DWC_DEBUGPL(DBG_PCD,"dev_token_q_depth=%d\n",TOKEN_Q_DEPTH); + + /* Read the DTKNQ Registers */ + for (i = 0; i < DTKNQ_REG_CNT; i++) + { + in_tkn_epnums[ i ] = dwc_read_reg32(addr); + DWC_DEBUGPL(DBG_PCDV, "DTKNQR%d=0x%08x\n", i+1, + in_tkn_epnums[i]); + if (addr == &dev_global_regs->dvbusdis) { + addr = &dev_global_regs->dtknqr3_dthrctl; + } + else { + ++addr; + } + } + + /* Copy the DTKNQR1 data to the bit field. */ + dtknqr1.d32 = in_tkn_epnums[0]; + /* Get the EP numbers */ + in_tkn_epnums[0] = dtknqr1.b.epnums0_5; + ndx = dtknqr1.b.intknwptr - 1; + + //DWC_DEBUGPL(DBG_PCDV,"ndx=%d\n",ndx); + if (ndx == -1) { + /** @todo Find a simpler way to calculate the max + * queue position.*/ + int cnt = TOKEN_Q_DEPTH; + if (TOKEN_Q_DEPTH <= 6) { + cnt = TOKEN_Q_DEPTH - 1; + } + else if (TOKEN_Q_DEPTH <= 14) { + cnt = TOKEN_Q_DEPTH - 7; + } + else if (TOKEN_Q_DEPTH <= 22) { + cnt = TOKEN_Q_DEPTH - 15; + } + else { + cnt = TOKEN_Q_DEPTH - 23; + } + epnum = (in_tkn_epnums[ DTKNQ_REG_CNT - 1 ] >> (cnt * 4)) & 0xF; + } + else { + if (ndx <= 5) { + epnum = (in_tkn_epnums[0] >> (ndx * 4)) & 0xF; + } + else if (ndx <= 13) { + ndx -= 6; + epnum = (in_tkn_epnums[1] >> (ndx * 4)) & 0xF; + } + else if (ndx <= 21) { + ndx -= 14; + epnum = (in_tkn_epnums[2] >> (ndx * 4)) & 0xF; + } + else if (ndx <= 29) { + ndx -= 22; + epnum = (in_tkn_epnums[3] >> (ndx * 4)) & 0xF; + } + } + //DWC_DEBUGPL(DBG_PCD,"epnum=%d\n",epnum); + return epnum; +} + +/** + * This interrupt occurs when the non-periodic Tx FIFO is half-empty. + * The active request is checked for the next packet to be loaded into + * the non-periodic Tx FIFO. + */ +int32_t dwc_otg_pcd_handle_np_tx_fifo_empty_intr(dwc_otg_pcd_t *pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_core_global_regs_t *global_regs = + core_if->core_global_regs; + dwc_otg_dev_in_ep_regs_t *ep_regs; + gnptxsts_data_t txstatus = {.d32 = 0}; + gintsts_data_t gintsts; + + int epnum = 0; + dwc_otg_pcd_ep_t *ep = 0; + uint32_t len = 0; + int dwords; + + /* Get the epnum from the IN Token Learning Queue. */ + epnum = get_ep_of_last_in_token(core_if); + ep = get_in_ep(pcd, epnum); + + DWC_DEBUGPL(DBG_PCD, "NP TxFifo Empty: %s(%d) \n", ep->ep.name, epnum); + ep_regs = core_if->dev_if->in_ep_regs[epnum]; + + len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; + if (len > ep->dwc_ep.maxpacket) { + len = ep->dwc_ep.maxpacket; + } + dwords = (len + 3)/4; + + /* While there is space in the queue and space in the FIFO and + * More data to tranfer, Write packets to the Tx FIFO */ + txstatus.d32 = dwc_read_reg32(&global_regs->gnptxsts); + DWC_DEBUGPL(DBG_PCDV, "b4 GNPTXSTS=0x%08x\n",txstatus.d32); + + while (txstatus.b.nptxqspcavail > 0 && + txstatus.b.nptxfspcavail > dwords && + ep->dwc_ep.xfer_count < ep->dwc_ep.xfer_len) { + /* Write the FIFO */ + dwc_otg_ep_write_packet(core_if, &ep->dwc_ep, 0); + len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; + + if (len > ep->dwc_ep.maxpacket) { + len = ep->dwc_ep.maxpacket; + } + + dwords = (len + 3)/4; + txstatus.d32 = dwc_read_reg32(&global_regs->gnptxsts); + DWC_DEBUGPL(DBG_PCDV,"GNPTXSTS=0x%08x\n",txstatus.d32); + } + + DWC_DEBUGPL(DBG_PCDV, "GNPTXSTS=0x%08x\n", + dwc_read_reg32(&global_regs->gnptxsts)); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.nptxfempty = 1; + dwc_write_reg32 (&global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * This function is called when dedicated Tx FIFO Empty interrupt occurs. + * The active request is checked for the next packet to be loaded into + * apropriate Tx FIFO. + */ +static int32_t write_empty_tx_fifo(dwc_otg_pcd_t *pcd, uint32_t epnum) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t* dev_if = core_if->dev_if; + dwc_otg_dev_in_ep_regs_t *ep_regs; + dtxfsts_data_t txstatus = {.d32 = 0}; + dwc_otg_pcd_ep_t *ep = 0; + uint32_t len = 0; + int dwords; + + ep = get_in_ep(pcd, epnum); + + DWC_DEBUGPL(DBG_PCD, "Dedicated TxFifo Empty: %s(%d) \n", ep->ep.name, epnum); + + ep_regs = core_if->dev_if->in_ep_regs[epnum]; + + len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; + + if (len > ep->dwc_ep.maxpacket) { + len = ep->dwc_ep.maxpacket; + } + + dwords = (len + 3)/4; + + /* While there is space in the queue and space in the FIFO and + * More data to tranfer, Write packets to the Tx FIFO */ + txstatus.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->dtxfsts); + DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n",epnum,txstatus.d32); + + while (txstatus.b.txfspcavail > dwords && + ep->dwc_ep.xfer_count < ep->dwc_ep.xfer_len && + ep->dwc_ep.xfer_len != 0) { + /* Write the FIFO */ + dwc_otg_ep_write_packet(core_if, &ep->dwc_ep, 0); + + len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; + if (len > ep->dwc_ep.maxpacket) { + len = ep->dwc_ep.maxpacket; + } + + dwords = (len + 3)/4; + txstatus.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->dtxfsts); + DWC_DEBUGPL(DBG_PCDV,"dtxfsts[%d]=0x%08x\n", epnum, txstatus.d32); + } + + DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n",epnum,dwc_read_reg32(&dev_if->in_ep_regs[epnum]->dtxfsts)); + + return 1; +} + +/** + * This function is called when the Device is disconnected. It stops + * any active requests and informs the Gadget driver of the + * disconnect. + */ +void dwc_otg_pcd_stop(dwc_otg_pcd_t *pcd) +{ + int i, num_in_eps, num_out_eps; + dwc_otg_pcd_ep_t *ep; + + gintmsk_data_t intr_mask = {.d32 = 0}; + + num_in_eps = GET_CORE_IF(pcd)->dev_if->num_in_eps; + num_out_eps = GET_CORE_IF(pcd)->dev_if->num_out_eps; + + DWC_DEBUGPL(DBG_PCDV, "%s() \n", __func__); + /* don't disconnect drivers more than once */ + if (pcd->ep0state == EP0_DISCONNECT) { + DWC_DEBUGPL(DBG_ANY, "%s() Already Disconnected\n", __func__); + return; + } + pcd->ep0state = EP0_DISCONNECT; + + /* Reset the OTG state. */ + dwc_otg_pcd_update_otg(pcd, 1); + + /* Disable the NP Tx Fifo Empty Interrupt. */ + intr_mask.b.nptxfempty = 1; + dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Flush the FIFOs */ + /**@todo NGS Flush Periodic FIFOs */ + dwc_otg_flush_tx_fifo(GET_CORE_IF(pcd), 0x10); + dwc_otg_flush_rx_fifo(GET_CORE_IF(pcd)); + + /* prevent new request submissions, kill any outstanding requests */ + ep = &pcd->ep0; + dwc_otg_request_nuke(ep); + /* prevent new request submissions, kill any outstanding requests */ + for (i = 0; i < num_in_eps; i++) + { + dwc_otg_pcd_ep_t *ep = &pcd->in_ep[i]; + dwc_otg_request_nuke(ep); + } + /* prevent new request submissions, kill any outstanding requests */ + for (i = 0; i < num_out_eps; i++) + { + dwc_otg_pcd_ep_t *ep = &pcd->out_ep[i]; + dwc_otg_request_nuke(ep); + } + + /* report disconnect; the driver is already quiesced */ + if (pcd->driver && pcd->driver->disconnect) { + SPIN_UNLOCK(&pcd->lock); + pcd->driver->disconnect(&pcd->gadget); + SPIN_LOCK(&pcd->lock); + } +} + +/** + * This interrupt indicates that ... + */ +int32_t dwc_otg_pcd_handle_i2c_intr(dwc_otg_pcd_t *pcd) +{ + gintmsk_data_t intr_mask = { .d32 = 0}; + gintsts_data_t gintsts; + + DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "i2cintr"); + intr_mask.b.i2cintr = 1; + dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.i2cintr = 1; + dwc_write_reg32 (&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + return 1; +} + + +/** + * This interrupt indicates that ... + */ +int32_t dwc_otg_pcd_handle_early_suspend_intr(dwc_otg_pcd_t *pcd) +{ + gintsts_data_t gintsts; +#if defined(VERBOSE) + DWC_PRINT("Early Suspend Detected\n"); +#endif + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.erlysuspend = 1; + dwc_write_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + return 1; +} + +/** + * This function configures EPO to receive SETUP packets. + * + * @todo NGS: Update the comments from the HW FS. + * + * -# Program the following fields in the endpoint specific registers + * for Control OUT EP 0, in order to receive a setup packet + * - DOEPTSIZ0.Packet Count = 3 (To receive up to 3 back to back + * setup packets) + * - DOEPTSIZE0.Transfer Size = 24 Bytes (To receive up to 3 back + * to back setup packets) + * - In DMA mode, DOEPDMA0 Register with a memory address to + * store any setup packets received + * + * @param core_if Programming view of DWC_otg controller. + * @param pcd Programming view of the PCD. + */ +static inline void ep0_out_start(dwc_otg_core_if_t *core_if, dwc_otg_pcd_t *pcd) +{ + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + deptsiz0_data_t doeptsize0 = { .d32 = 0}; + dwc_otg_dma_desc_t* dma_desc; + depctl_data_t doepctl = { .d32 = 0 }; + +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV,"%s() doepctl0=%0x\n", __func__, + dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl)); +#endif + + doeptsize0.b.supcnt = 3; + doeptsize0.b.pktcnt = 1; + doeptsize0.b.xfersize = 8*3; + + if (core_if->dma_enable) { + if (!core_if->dma_desc_enable) { + /** put here as for Hermes mode deptisz register should not be written */ + dwc_write_reg32(&dev_if->out_ep_regs[0]->doeptsiz, + doeptsize0.d32); + + /** @todo dma needs to handle multiple setup packets (up to 3) */ + VERIFY_PCD_DMA_ADDR(pcd->setup_pkt_dma_handle); + + dwc_write_reg32(&dev_if->out_ep_regs[0]->doepdma, + pcd->setup_pkt_dma_handle); + } else { + dev_if->setup_desc_index = (dev_if->setup_desc_index + 1) & 1; + dma_desc = dev_if->setup_desc_addr[dev_if->setup_desc_index]; + + /** DMA Descriptor Setup */ + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + dma_desc->status.b.bytes = pcd->ep0.dwc_ep.maxpacket; + dma_desc->buf = pcd->setup_pkt_dma_handle; + dma_desc->status.b.bs = BS_HOST_READY; + + /** DOEPDMA0 Register write */ + VERIFY_PCD_DMA_ADDR(dev_if->dma_setup_desc_addr[dev_if->setup_desc_index]); + dwc_write_reg32(&dev_if->out_ep_regs[0]->doepdma, dev_if->dma_setup_desc_addr[dev_if->setup_desc_index]); + } + + } else { + /** put here as for Hermes mode deptisz register should not be written */ + dwc_write_reg32(&dev_if->out_ep_regs[0]->doeptsiz, + doeptsize0.d32); + } + + /** DOEPCTL0 Register write */ + doepctl.b.epena = 1; + doepctl.b.cnak = 1; + dwc_write_reg32(&dev_if->out_ep_regs[0]->doepctl, doepctl.d32); + +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV,"doepctl0=%0x\n", + dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl)); + DWC_DEBUGPL(DBG_PCDV,"diepctl0=%0x\n", + dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl)); +#endif +} + +/** + * This interrupt occurs when a USB Reset is detected. When the USB + * Reset Interrupt occurs the device state is set to DEFAULT and the + * EP0 state is set to IDLE. + * -# Set the NAK bit for all OUT endpoints (DOEPCTLn.SNAK = 1) + * -# Unmask the following interrupt bits + * - DAINTMSK.INEP0 = 1 (Control 0 IN endpoint) + * - DAINTMSK.OUTEP0 = 1 (Control 0 OUT endpoint) + * - DOEPMSK.SETUP = 1 + * - DOEPMSK.XferCompl = 1 + * - DIEPMSK.XferCompl = 1 + * - DIEPMSK.TimeOut = 1 + * -# Program the following fields in the endpoint specific registers + * for Control OUT EP 0, in order to receive a setup packet + * - DOEPTSIZ0.Packet Count = 3 (To receive up to 3 back to back + * setup packets) + * - DOEPTSIZE0.Transfer Size = 24 Bytes (To receive up to 3 back + * to back setup packets) + * - In DMA mode, DOEPDMA0 Register with a memory address to + * store any setup packets received + * At this point, all the required initialization, except for enabling + * the control 0 OUT endpoint is done, for receiving SETUP packets. + */ +int32_t dwc_otg_pcd_handle_usb_reset_intr(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + depctl_data_t doepctl = { .d32 = 0}; + + daint_data_t daintmsk = { .d32 = 0}; + doepmsk_data_t doepmsk = { .d32 = 0}; + diepmsk_data_t diepmsk = { .d32 = 0}; + + dcfg_data_t dcfg = { .d32=0 }; + grstctl_t resetctl = { .d32=0 }; + dctl_data_t dctl = {.d32=0}; + int i = 0; + gintsts_data_t gintsts; + + DWC_PRINT("USB RESET\n"); +#ifdef DWC_EN_ISOC + for(i = 1;i < 16; ++i) + { + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + ep = get_in_ep(pcd,i); + if(ep != 0){ + dwc_ep = &ep->dwc_ep; + dwc_ep->next_frame = 0xffffffff; + } + } +#endif /* DWC_EN_ISOC */ + + /* reset the HNP settings */ + dwc_otg_pcd_update_otg(pcd, 1); + + /* Clear the Remote Wakeup Signalling */ + dctl.b.rmtwkupsig = 1; + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dctl, + dctl.d32, 0); + + /* Set NAK for all OUT EPs */ + doepctl.b.snak = 1; + for (i=0; i <= dev_if->num_out_eps; i++) + { + dwc_write_reg32(&dev_if->out_ep_regs[i]->doepctl, + doepctl.d32); + } + + /* Flush the NP Tx FIFO */ + dwc_otg_flush_tx_fifo(core_if, 0x10); + /* Flush the Learning Queue */ + resetctl.b.intknqflsh = 1; + dwc_write_reg32(&core_if->core_global_regs->grstctl, resetctl.d32); + + if(core_if->multiproc_int_enable) { + daintmsk.b.inep0 = 1; + daintmsk.b.outep0 = 1; + dwc_write_reg32(&dev_if->dev_global_regs->deachintmsk, daintmsk.d32); + + doepmsk.b.setup = 1; + doepmsk.b.xfercompl = 1; + doepmsk.b.ahberr = 1; + doepmsk.b.epdisabled = 1; + + if(core_if->dma_desc_enable) { + doepmsk.b.stsphsercvd = 1; + doepmsk.b.bna = 1; + } +/* + doepmsk.b.babble = 1; + doepmsk.b.nyet = 1; + + if(core_if->dma_enable) { + doepmsk.b.nak = 1; + } +*/ + dwc_write_reg32(&dev_if->dev_global_regs->doepeachintmsk[0], doepmsk.d32); + + diepmsk.b.xfercompl = 1; + diepmsk.b.timeout = 1; + diepmsk.b.epdisabled = 1; + diepmsk.b.ahberr = 1; + diepmsk.b.intknepmis = 1; + + if(core_if->dma_desc_enable) { + diepmsk.b.bna = 1; + } +/* + if(core_if->dma_enable) { + diepmsk.b.nak = 1; + } +*/ + dwc_write_reg32(&dev_if->dev_global_regs->diepeachintmsk[0], diepmsk.d32); + } else{ + daintmsk.b.inep0 = 1; + daintmsk.b.outep0 = 1; + dwc_write_reg32(&dev_if->dev_global_regs->daintmsk, daintmsk.d32); + + doepmsk.b.setup = 1; + doepmsk.b.xfercompl = 1; + doepmsk.b.ahberr = 1; + doepmsk.b.epdisabled = 1; + + if(core_if->dma_desc_enable) { + doepmsk.b.stsphsercvd = 1; + doepmsk.b.bna = 1; + } +/* + doepmsk.b.babble = 1; + doepmsk.b.nyet = 1; + doepmsk.b.nak = 1; +*/ + dwc_write_reg32(&dev_if->dev_global_regs->doepmsk, doepmsk.d32); + + diepmsk.b.xfercompl = 1; + diepmsk.b.timeout = 1; + diepmsk.b.epdisabled = 1; + diepmsk.b.ahberr = 1; + diepmsk.b.intknepmis = 1; + + if(core_if->dma_desc_enable) { + diepmsk.b.bna = 1; + } + +// diepmsk.b.nak = 1; + + dwc_write_reg32(&dev_if->dev_global_regs->diepmsk, diepmsk.d32); + } + + /* Reset Device Address */ + dcfg.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dcfg); + dcfg.b.devaddr = 0; + dwc_write_reg32(&dev_if->dev_global_regs->dcfg, dcfg.d32); + + /* setup EP0 to receive SETUP packets */ + ep0_out_start(core_if, pcd); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.usbreset = 1; + dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * Get the device speed from the device status register and convert it + * to USB speed constant. + * + * @param core_if Programming view of DWC_otg controller. + */ +static int get_device_speed(dwc_otg_core_if_t *core_if) +{ + dsts_data_t dsts; + enum usb_device_speed speed = USB_SPEED_UNKNOWN; + dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); + + switch (dsts.b.enumspd) { + case DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ: + speed = USB_SPEED_HIGH; + break; + case DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ: + case DWC_DSTS_ENUMSPD_FS_PHY_48MHZ: + speed = USB_SPEED_FULL; + break; + + case DWC_DSTS_ENUMSPD_LS_PHY_6MHZ: + speed = USB_SPEED_LOW; + break; + } + + return speed; +} + +/** + * Read the device status register and set the device speed in the + * data structure. + * Set up EP0 to receive SETUP packets by calling dwc_ep0_activate. + */ +int32_t dwc_otg_pcd_handle_enum_done_intr(dwc_otg_pcd_t *pcd) +{ + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + gintsts_data_t gintsts; + gusbcfg_data_t gusbcfg; + dwc_otg_core_global_regs_t *global_regs = + GET_CORE_IF(pcd)->core_global_regs; + uint8_t utmi16b, utmi8b; +// DWC_DEBUGPL(DBG_PCD, "SPEED ENUM\n"); + DWC_PRINT("SPEED ENUM\n"); + + if (GET_CORE_IF(pcd)->snpsid >= 0x4F54260A) { + utmi16b = 6; + utmi8b = 9; + } else { + utmi16b = 4; + utmi8b = 8; + } + dwc_otg_ep0_activate(GET_CORE_IF(pcd), &ep0->dwc_ep); + +#ifdef DEBUG_EP0 + print_ep0_state(pcd); +#endif + + if (pcd->ep0state == EP0_DISCONNECT) { + pcd->ep0state = EP0_IDLE; + } + else if (pcd->ep0state == EP0_STALL) { + pcd->ep0state = EP0_IDLE; + } + + pcd->ep0state = EP0_IDLE; + + ep0->stopped = 0; + + pcd->gadget.speed = get_device_speed(GET_CORE_IF(pcd)); + + /* Set USB turnaround time based on device speed and PHY interface. */ + gusbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); + if (pcd->gadget.speed == USB_SPEED_HIGH) { + if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == DWC_HWCFG2_HS_PHY_TYPE_ULPI) { + /* ULPI interface */ + gusbcfg.b.usbtrdtim = 9; + } + if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == DWC_HWCFG2_HS_PHY_TYPE_UTMI) { + /* UTMI+ interface */ + if (GET_CORE_IF(pcd)->hwcfg4.b.utmi_phy_data_width == 0) { + gusbcfg.b.usbtrdtim = utmi8b; + } + else if (GET_CORE_IF(pcd)->hwcfg4.b.utmi_phy_data_width == 1) { + gusbcfg.b.usbtrdtim = utmi16b; + } + else if (GET_CORE_IF(pcd)->core_params->phy_utmi_width == 8) { + gusbcfg.b.usbtrdtim = utmi8b; + } + else { + gusbcfg.b.usbtrdtim = utmi16b; + } + } + if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI) { + /* UTMI+ OR ULPI interface */ + if (gusbcfg.b.ulpi_utmi_sel == 1) { + /* ULPI interface */ + gusbcfg.b.usbtrdtim = 9; + } + else { + /* UTMI+ interface */ + if (GET_CORE_IF(pcd)->core_params->phy_utmi_width == 16) { + gusbcfg.b.usbtrdtim = utmi16b; + } + else { + gusbcfg.b.usbtrdtim = utmi8b; + } + } + } + } + else { + /* Full or low speed */ + gusbcfg.b.usbtrdtim = 9; + } + dwc_write_reg32(&global_regs->gusbcfg, gusbcfg.d32); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.enumdone = 1; + dwc_write_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + return 1; +} + +/** + * This interrupt indicates that the ISO OUT Packet was dropped due to + * Rx FIFO full or Rx Status Queue Full. If this interrupt occurs + * read all the data from the Rx FIFO. + */ +int32_t dwc_otg_pcd_handle_isoc_out_packet_dropped_intr(dwc_otg_pcd_t *pcd) +{ + gintmsk_data_t intr_mask = { .d32 = 0}; + gintsts_data_t gintsts; + + DWC_PRINT("INTERRUPT Handler not implemented for %s\n", + "ISOC Out Dropped"); + + intr_mask.b.isooutdrop = 1; + dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Clear interrupt */ + + gintsts.d32 = 0; + gintsts.b.isooutdrop = 1; + dwc_write_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + +/** + * This interrupt indicates the end of the portion of the micro-frame + * for periodic transactions. If there is a periodic transaction for + * the next frame, load the packets into the EP periodic Tx FIFO. + */ +int32_t dwc_otg_pcd_handle_end_periodic_frame_intr(dwc_otg_pcd_t *pcd) +{ + gintmsk_data_t intr_mask = { .d32 = 0}; + gintsts_data_t gintsts; + DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "EOP"); + + intr_mask.b.eopframe = 1; + dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.eopframe = 1; + dwc_write_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * This interrupt indicates that EP of the packet on the top of the + * non-periodic Tx FIFO does not match EP of the IN Token received. + * + * The "Device IN Token Queue" Registers are read to determine the + * order the IN Tokens have been received. The non-periodic Tx FIFO + * is flushed, so it can be reloaded in the order seen in the IN Token + * Queue. + */ +int32_t dwc_otg_pcd_handle_ep_mismatch_intr(dwc_otg_core_if_t *core_if) +{ + gintsts_data_t gintsts; + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, core_if); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.epmismatch = 1; + dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * This funcion stalls EP0. + */ +static inline void ep0_do_stall(dwc_otg_pcd_t *pcd, const int err_val) +{ + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + struct usb_ctrlrequest *ctrl = &pcd->setup_pkt->req; + DWC_WARN("req %02x.%02x protocol STALL; err %d\n", + ctrl->bRequestType, ctrl->bRequest, err_val); + + ep0->dwc_ep.is_in = 1; + dwc_otg_ep_set_stall(pcd->otg_dev->core_if, &ep0->dwc_ep); + pcd->ep0.stopped = 1; + pcd->ep0state = EP0_IDLE; + ep0_out_start(GET_CORE_IF(pcd), pcd); +} + +/** + * This functions delegates the setup command to the gadget driver. + */ +static inline void do_gadget_setup(dwc_otg_pcd_t *pcd, + struct usb_ctrlrequest * ctrl) +{ + int ret = 0; + if (pcd->driver && pcd->driver->setup) { + SPIN_UNLOCK(&pcd->lock); + ret = pcd->driver->setup(&pcd->gadget, ctrl); + SPIN_LOCK(&pcd->lock); + if (ret < 0) { + ep0_do_stall(pcd, ret); + } + + /** @todo This is a g_file_storage gadget driver specific + * workaround: a DELAYED_STATUS result from the fsg_setup + * routine will result in the gadget queueing a EP0 IN status + * phase for a two-stage control transfer. Exactly the same as + * a SET_CONFIGURATION/SET_INTERFACE except that this is a class + * specific request. Need a generic way to know when the gadget + * driver will queue the status phase. Can we assume when we + * call the gadget driver setup() function that it will always + * queue and require the following flag? Need to look into + * this. + */ + + if (ret == 256 + 999) { + pcd->request_config = 1; + } + } +} + +/** + * This function starts the Zero-Length Packet for the IN status phase + * of a 2 stage control transfer. + */ +static inline void do_setup_in_status_phase(dwc_otg_pcd_t *pcd) +{ + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + if (pcd->ep0state == EP0_STALL) { + return; + } + + pcd->ep0state = EP0_IN_STATUS_PHASE; + + /* Prepare for more SETUP Packets */ + DWC_DEBUGPL(DBG_PCD, "EP0 IN ZLP\n"); + ep0->dwc_ep.xfer_len = 0; + ep0->dwc_ep.xfer_count = 0; + ep0->dwc_ep.is_in = 1; + ep0->dwc_ep.dma_addr = pcd->setup_pkt_dma_handle; + dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep); + + /* Prepare for more SETUP Packets */ +// if(GET_CORE_IF(pcd)->dma_enable == 0) ep0_out_start(GET_CORE_IF(pcd), pcd); +} + +/** + * This function starts the Zero-Length Packet for the OUT status phase + * of a 2 stage control transfer. + */ +static inline void do_setup_out_status_phase(dwc_otg_pcd_t *pcd) +{ + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + if (pcd->ep0state == EP0_STALL) { + DWC_DEBUGPL(DBG_PCD, "EP0 STALLED\n"); + return; + } + pcd->ep0state = EP0_OUT_STATUS_PHASE; + + DWC_DEBUGPL(DBG_PCD, "EP0 OUT ZLP\n"); + ep0->dwc_ep.xfer_len = 0; + ep0->dwc_ep.xfer_count = 0; + ep0->dwc_ep.is_in = 0; + ep0->dwc_ep.dma_addr = pcd->setup_pkt_dma_handle; + dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep); + + /* Prepare for more SETUP Packets */ + if(GET_CORE_IF(pcd)->dma_enable == 0) { + ep0_out_start(GET_CORE_IF(pcd), pcd); + } +} + +/** + * Clear the EP halt (STALL) and if pending requests start the + * transfer. + */ +static inline void pcd_clear_halt(dwc_otg_pcd_t *pcd, dwc_otg_pcd_ep_t *ep) +{ + if(ep->dwc_ep.stall_clear_flag == 0) + dwc_otg_ep_clear_stall(GET_CORE_IF(pcd), &ep->dwc_ep); + + /* Reactive the EP */ + dwc_otg_ep_activate(GET_CORE_IF(pcd), &ep->dwc_ep); + if (ep->stopped) { + ep->stopped = 0; + /* If there is a request in the EP queue start it */ + + /** @todo FIXME: this causes an EP mismatch in DMA mode. + * epmismatch not yet implemented. */ + + /* + * Above fixme is solved by implmenting a tasklet to call the + * start_next_request(), outside of interrupt context at some + * time after the current time, after a clear-halt setup packet. + * Still need to implement ep mismatch in the future if a gadget + * ever uses more than one endpoint at once + */ + ep->queue_sof = 1; + tasklet_schedule (pcd->start_xfer_tasklet); + } + /* Start Control Status Phase */ + do_setup_in_status_phase(pcd); +} + +/** + * This function is called when the SET_FEATURE TEST_MODE Setup packet + * is sent from the host. The Device Control register is written with + * the Test Mode bits set to the specified Test Mode. This is done as + * a tasklet so that the "Status" phase of the control transfer + * completes before transmitting the TEST packets. + * + * @todo This has not been tested since the tasklet struct was put + * into the PCD struct! + * + */ +static void do_test_mode(unsigned long data) +{ + dctl_data_t dctl; + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)data; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + int test_mode = pcd->test_mode; + + +// DWC_WARN("%s() has not been tested since being rewritten!\n", __func__); + + dctl.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dctl); + switch (test_mode) { + case 1: // TEST_J + dctl.b.tstctl = 1; + break; + + case 2: // TEST_K + dctl.b.tstctl = 2; + break; + + case 3: // TEST_SE0_NAK + dctl.b.tstctl = 3; + break; + + case 4: // TEST_PACKET + dctl.b.tstctl = 4; + break; + + case 5: // TEST_FORCE_ENABLE + dctl.b.tstctl = 5; + break; + } + dwc_write_reg32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32); +} + +/** + * This function process the GET_STATUS Setup Commands. + */ +static inline void do_get_status(dwc_otg_pcd_t *pcd) +{ + struct usb_ctrlrequest ctrl = pcd->setup_pkt->req; + dwc_otg_pcd_ep_t *ep; + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + uint16_t *status = pcd->status_buf; + +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, + "GET_STATUS %02x.%02x v%04x i%04x l%04x\n", + ctrl.bRequestType, ctrl.bRequest, + ctrl.wValue, ctrl.wIndex, ctrl.wLength); +#endif + + switch (ctrl.bRequestType & USB_RECIP_MASK) { + case USB_RECIP_DEVICE: + *status = 0x1; /* Self powered */ + *status |= pcd->remote_wakeup_enable << 1; + break; + + case USB_RECIP_INTERFACE: + *status = 0; + break; + + case USB_RECIP_ENDPOINT: + ep = get_ep_by_addr(pcd, ctrl.wIndex); + if (ep == 0 || ctrl.wLength > 2) { + ep0_do_stall(pcd, -EOPNOTSUPP); + return; + } + /** @todo check for EP stall */ + *status = ep->stopped; + break; + } + pcd->ep0_pending = 1; + ep0->dwc_ep.start_xfer_buff = (uint8_t *)status; + ep0->dwc_ep.xfer_buff = (uint8_t *)status; + ep0->dwc_ep.dma_addr = pcd->status_buf_dma_handle; + ep0->dwc_ep.xfer_len = 2; + ep0->dwc_ep.xfer_count = 0; + ep0->dwc_ep.total_len = ep0->dwc_ep.xfer_len; + dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep); +} +/** + * This function process the SET_FEATURE Setup Commands. + */ +static inline void do_set_feature(dwc_otg_pcd_t *pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_core_global_regs_t *global_regs = + core_if->core_global_regs; + struct usb_ctrlrequest ctrl = pcd->setup_pkt->req; + dwc_otg_pcd_ep_t *ep = 0; + int32_t otg_cap_param = core_if->core_params->otg_cap; + gotgctl_data_t gotgctl = { .d32 = 0 }; + + DWC_DEBUGPL(DBG_PCD, "SET_FEATURE:%02x.%02x v%04x i%04x l%04x\n", + ctrl.bRequestType, ctrl.bRequest, + ctrl.wValue, ctrl.wIndex, ctrl.wLength); + DWC_DEBUGPL(DBG_PCD,"otg_cap=%d\n", otg_cap_param); + + + switch (ctrl.bRequestType & USB_RECIP_MASK) { + case USB_RECIP_DEVICE: + switch (ctrl.wValue) { + case USB_DEVICE_REMOTE_WAKEUP: + pcd->remote_wakeup_enable = 1; + break; + + case USB_DEVICE_TEST_MODE: + /* Setup the Test Mode tasklet to do the Test + * Packet generation after the SETUP Status + * phase has completed. */ + + /** @todo This has not been tested since the + * tasklet struct was put into the PCD + * struct! */ + pcd->test_mode_tasklet.next = 0; + pcd->test_mode_tasklet.state = 0; + atomic_set(&pcd->test_mode_tasklet.count, 0); + pcd->test_mode_tasklet.func = do_test_mode; + pcd->test_mode_tasklet.data = (unsigned long)pcd; + pcd->test_mode = ctrl.wIndex >> 8; + tasklet_schedule(&pcd->test_mode_tasklet); + break; + + case USB_DEVICE_B_HNP_ENABLE: + DWC_DEBUGPL(DBG_PCDV, "SET_FEATURE: USB_DEVICE_B_HNP_ENABLE\n"); + + /* dev may initiate HNP */ + if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) { + pcd->b_hnp_enable = 1; + dwc_otg_pcd_update_otg(pcd, 0); + DWC_DEBUGPL(DBG_PCD, "Request B HNP\n"); + /**@todo Is the gotgctl.devhnpen cleared + * by a USB Reset? */ + gotgctl.b.devhnpen = 1; + gotgctl.b.hnpreq = 1; + dwc_write_reg32(&global_regs->gotgctl, gotgctl.d32); + } + else { + ep0_do_stall(pcd, -EOPNOTSUPP); + } + break; + + case USB_DEVICE_A_HNP_SUPPORT: + /* RH port supports HNP */ + DWC_DEBUGPL(DBG_PCDV, "SET_FEATURE: USB_DEVICE_A_HNP_SUPPORT\n"); + if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) { + pcd->a_hnp_support = 1; + dwc_otg_pcd_update_otg(pcd, 0); + } + else { + ep0_do_stall(pcd, -EOPNOTSUPP); + } + break; + + case USB_DEVICE_A_ALT_HNP_SUPPORT: + /* other RH port does */ + DWC_DEBUGPL(DBG_PCDV, "SET_FEATURE: USB_DEVICE_A_ALT_HNP_SUPPORT\n"); + if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) { + pcd->a_alt_hnp_support = 1; + dwc_otg_pcd_update_otg(pcd, 0); + } + else { + ep0_do_stall(pcd, -EOPNOTSUPP); + } + break; + } + do_setup_in_status_phase(pcd); + break; + + case USB_RECIP_INTERFACE: + do_gadget_setup(pcd, &ctrl); + break; + + case USB_RECIP_ENDPOINT: + if (ctrl.wValue == USB_ENDPOINT_HALT) { + ep = get_ep_by_addr(pcd, ctrl.wIndex); + if (ep == 0) { + ep0_do_stall(pcd, -EOPNOTSUPP); + return; + } + ep->stopped = 1; + dwc_otg_ep_set_stall(core_if, &ep->dwc_ep); + } + do_setup_in_status_phase(pcd); + break; + } +} + +/** + * This function process the CLEAR_FEATURE Setup Commands. + */ +static inline void do_clear_feature(dwc_otg_pcd_t *pcd) +{ + struct usb_ctrlrequest ctrl = pcd->setup_pkt->req; + dwc_otg_pcd_ep_t *ep = 0; + + DWC_DEBUGPL(DBG_PCD, + "CLEAR_FEATURE:%02x.%02x v%04x i%04x l%04x\n", + ctrl.bRequestType, ctrl.bRequest, + ctrl.wValue, ctrl.wIndex, ctrl.wLength); + + switch (ctrl.bRequestType & USB_RECIP_MASK) { + case USB_RECIP_DEVICE: + switch (ctrl.wValue) { + case USB_DEVICE_REMOTE_WAKEUP: + pcd->remote_wakeup_enable = 0; + break; + + case USB_DEVICE_TEST_MODE: + /** @todo Add CLEAR_FEATURE for TEST modes. */ + break; + } + do_setup_in_status_phase(pcd); + break; + + case USB_RECIP_ENDPOINT: + ep = get_ep_by_addr(pcd, ctrl.wIndex); + if (ep == 0) { + ep0_do_stall(pcd, -EOPNOTSUPP); + return; + } + + pcd_clear_halt(pcd, ep); + + break; + } +} + +/** + * This function process the SET_ADDRESS Setup Commands. + */ +static inline void do_set_address(dwc_otg_pcd_t *pcd) +{ + dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if; + struct usb_ctrlrequest ctrl = pcd->setup_pkt->req; + + if (ctrl.bRequestType == USB_RECIP_DEVICE) { + dcfg_data_t dcfg = {.d32=0}; + +#ifdef DEBUG_EP0 +// DWC_DEBUGPL(DBG_PCDV, "SET_ADDRESS:%d\n", ctrl.wValue); +#endif + dcfg.b.devaddr = ctrl.wValue; + dwc_modify_reg32(&dev_if->dev_global_regs->dcfg, 0, dcfg.d32); + do_setup_in_status_phase(pcd); + } +} + +/** + * This function processes SETUP commands. In Linux, the USB Command + * processing is done in two places - the first being the PCD and the + * second in the Gadget Driver (for example, the File-Backed Storage + * Gadget Driver). + * + * <table> + * <tr><td>Command </td><td>Driver </td><td>Description</td></tr> + * + * <tr><td>GET_STATUS </td><td>PCD </td><td>Command is processed as + * defined in chapter 9 of the USB 2.0 Specification chapter 9 + * </td></tr> + * + * <tr><td>CLEAR_FEATURE </td><td>PCD </td><td>The Device and Endpoint + * requests are the ENDPOINT_HALT feature is procesed, all others the + * interface requests are ignored.</td></tr> + * + * <tr><td>SET_FEATURE </td><td>PCD </td><td>The Device and Endpoint + * requests are processed by the PCD. Interface requests are passed + * to the Gadget Driver.</td></tr> + * + * <tr><td>SET_ADDRESS </td><td>PCD </td><td>Program the DCFG reg, + * with device address received </td></tr> + * + * <tr><td>GET_DESCRIPTOR </td><td>Gadget Driver </td><td>Return the + * requested descriptor</td></tr> + * + * <tr><td>SET_DESCRIPTOR </td><td>Gadget Driver </td><td>Optional - + * not implemented by any of the existing Gadget Drivers.</td></tr> + * + * <tr><td>SET_CONFIGURATION </td><td>Gadget Driver </td><td>Disable + * all EPs and enable EPs for new configuration.</td></tr> + * + * <tr><td>GET_CONFIGURATION </td><td>Gadget Driver </td><td>Return + * the current configuration</td></tr> + * + * <tr><td>SET_INTERFACE </td><td>Gadget Driver </td><td>Disable all + * EPs and enable EPs for new configuration.</td></tr> + * + * <tr><td>GET_INTERFACE </td><td>Gadget Driver </td><td>Return the + * current interface.</td></tr> + * + * <tr><td>SYNC_FRAME </td><td>PCD </td><td>Display debug + * message.</td></tr> + * </table> + * + * When the SETUP Phase Done interrupt occurs, the PCD SETUP commands are + * processed by pcd_setup. Calling the Function Driver's setup function from + * pcd_setup processes the gadget SETUP commands. + */ +static inline void pcd_setup(dwc_otg_pcd_t *pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + struct usb_ctrlrequest ctrl = pcd->setup_pkt->req; + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + + deptsiz0_data_t doeptsize0 = { .d32 = 0}; + +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, "SETUP %02x.%02x v%04x i%04x l%04x\n", + ctrl.bRequestType, ctrl.bRequest, + ctrl.wValue, ctrl.wIndex, ctrl.wLength); +#endif + + doeptsize0.d32 = dwc_read_reg32(&dev_if->out_ep_regs[0]->doeptsiz); + + /** @todo handle > 1 setup packet , assert error for now */ + + if (core_if->dma_enable && core_if->dma_desc_enable == 0 && (doeptsize0.b.supcnt < 2)) { + DWC_ERROR ("\n\n----------- CANNOT handle > 1 setup packet in DMA mode\n\n"); + } + + /* Clean up the request queue */ + dwc_otg_request_nuke(ep0); + ep0->stopped = 0; + + if (ctrl.bRequestType & USB_DIR_IN) { + ep0->dwc_ep.is_in = 1; + pcd->ep0state = EP0_IN_DATA_PHASE; + } + else { + ep0->dwc_ep.is_in = 0; + pcd->ep0state = EP0_OUT_DATA_PHASE; + } + + if(ctrl.wLength == 0) { + ep0->dwc_ep.is_in = 1; + pcd->ep0state = EP0_IN_STATUS_PHASE; + } + + if ((ctrl.bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD) { + /* handle non-standard (class/vendor) requests in the gadget driver */ + do_gadget_setup(pcd, &ctrl); + return; + } + + /** @todo NGS: Handle bad setup packet? */ + +/////////////////////////////////////////// +//// --- Standard Request handling --- //// + + switch (ctrl.bRequest) { + case USB_REQ_GET_STATUS: + do_get_status(pcd); + break; + + case USB_REQ_CLEAR_FEATURE: + do_clear_feature(pcd); + break; + + case USB_REQ_SET_FEATURE: + do_set_feature(pcd); + break; + + case USB_REQ_SET_ADDRESS: + do_set_address(pcd); + break; + + case USB_REQ_SET_INTERFACE: + case USB_REQ_SET_CONFIGURATION: +// _pcd->request_config = 1; /* Configuration changed */ + do_gadget_setup(pcd, &ctrl); + break; + + case USB_REQ_SYNCH_FRAME: + do_gadget_setup(pcd, &ctrl); + break; + + default: + /* Call the Gadget Driver's setup functions */ + do_gadget_setup(pcd, &ctrl); + break; + } +} + +/** + * This function completes the ep0 control transfer. + */ +static int32_t ep0_complete_request(dwc_otg_pcd_ep_t *ep) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + dwc_otg_dev_in_ep_regs_t *in_ep_regs = + dev_if->in_ep_regs[ep->dwc_ep.num]; +#ifdef DEBUG_EP0 + dwc_otg_dev_out_ep_regs_t *out_ep_regs = + dev_if->out_ep_regs[ep->dwc_ep.num]; +#endif + deptsiz0_data_t deptsiz; + desc_sts_data_t desc_sts; + dwc_otg_pcd_request_t *req; + int is_last = 0; + dwc_otg_pcd_t *pcd = ep->pcd; + + //DWC_DEBUGPL(DBG_PCDV, "%s() %s\n", __func__, _ep->ep.name); + + if (pcd->ep0_pending && list_empty(&ep->queue)) { + if (ep->dwc_ep.is_in) { +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "Do setup OUT status phase\n"); +#endif + do_setup_out_status_phase(pcd); + } + else { +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "Do setup IN status phase\n"); +#endif + do_setup_in_status_phase(pcd); + } + pcd->ep0_pending = 0; + return 1; + } + + if (list_empty(&ep->queue)) { + return 0; + } + req = list_entry(ep->queue.next, dwc_otg_pcd_request_t, queue); + + + if (pcd->ep0state == EP0_OUT_STATUS_PHASE || pcd->ep0state == EP0_IN_STATUS_PHASE) { + is_last = 1; + } + else if (ep->dwc_ep.is_in) { + deptsiz.d32 = dwc_read_reg32(&in_ep_regs->dieptsiz); + if(core_if->dma_desc_enable != 0) + desc_sts.d32 = readl(dev_if->in_desc_addr); +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "%s len=%d xfersize=%d pktcnt=%d\n", + ep->ep.name, ep->dwc_ep.xfer_len, + deptsiz.b.xfersize, deptsiz.b.pktcnt); +#endif + + if (((core_if->dma_desc_enable == 0) && (deptsiz.b.xfersize == 0)) || + ((core_if->dma_desc_enable != 0) && (desc_sts.b.bytes == 0))) { + req->req.actual = ep->dwc_ep.xfer_count; + /* Is a Zero Len Packet needed? */ + if (req->req.zero) { +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, "Setup Rx ZLP\n"); +#endif + req->req.zero = 0; + } + do_setup_out_status_phase(pcd); + } + } + else { + /* ep0-OUT */ +#ifdef DEBUG_EP0 + deptsiz.d32 = dwc_read_reg32(&out_ep_regs->doeptsiz); + DWC_DEBUGPL(DBG_PCDV, "%s len=%d xsize=%d pktcnt=%d\n", + ep->ep.name, ep->dwc_ep.xfer_len, + deptsiz.b.xfersize, + deptsiz.b.pktcnt); +#endif + req->req.actual = ep->dwc_ep.xfer_count; + /* Is a Zero Len Packet needed? */ + if (req->req.zero) { +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "Setup Tx ZLP\n"); +#endif + req->req.zero = 0; + } + if(core_if->dma_desc_enable == 0) + do_setup_in_status_phase(pcd); + } + + /* Complete the request */ + if (is_last) { + dwc_otg_request_done(ep, req, 0); + ep->dwc_ep.start_xfer_buff = 0; + ep->dwc_ep.xfer_buff = 0; + ep->dwc_ep.xfer_len = 0; + return 1; + } + return 0; +} + +inline void aligned_buf_patch_on_buf_dma_oep_completion(dwc_otg_pcd_ep_t *ep, uint32_t byte_count) +{ + dwc_ep_t *dwc_ep = &ep->dwc_ep; + if(byte_count && dwc_ep->aligned_buf && + dwc_ep->dma_addr>=dwc_ep->aligned_dma_addr && + dwc_ep->dma_addr<=(dwc_ep->aligned_dma_addr+dwc_ep->aligned_buf_size))\ + { + //aligned buf used, apply complete patch + u32 offset=(dwc_ep->dma_addr-dwc_ep->aligned_dma_addr); + memcpy(dwc_ep->start_xfer_buff+offset, dwc_ep->aligned_buf+offset, byte_count); + } +} + +/** + * This function completes the request for the EP. If there are + * additional requests for the EP in the queue they will be started. + */ +static void complete_ep(dwc_otg_pcd_ep_t *ep) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + dwc_otg_dev_in_ep_regs_t *in_ep_regs = + dev_if->in_ep_regs[ep->dwc_ep.num]; + deptsiz_data_t deptsiz; + desc_sts_data_t desc_sts; + dwc_otg_pcd_request_t *req = 0; + dwc_otg_dma_desc_t* dma_desc; + uint32_t byte_count = 0; + int is_last = 0; + int i; + + DWC_DEBUGPL(DBG_PCDV,"%s() %s-%s\n", __func__, ep->ep.name, + (ep->dwc_ep.is_in?"IN":"OUT")); + + /* Get any pending requests */ + if (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, dwc_otg_pcd_request_t, + queue); + if (!req) { + printk("complete_ep 0x%p, req = NULL!\n", ep); + return; + } + } + else { + printk("complete_ep 0x%p, ep->queue empty!\n", ep); + return; + } + DWC_DEBUGPL(DBG_PCD, "Requests %d\n", ep->pcd->request_pending); + + if (ep->dwc_ep.is_in) { + deptsiz.d32 = dwc_read_reg32(&in_ep_regs->dieptsiz); + + if (core_if->dma_enable) { + //dma_unmap_single(NULL,ep->dwc_ep.dma_addr,ep->dwc_ep.xfer_count,DMA_NONE); + if(core_if->dma_desc_enable == 0) { + //dma_unmap_single(NULL,ep->dwc_ep.dma_addr,ep->dwc_ep.xfer_count,DMA_NONE); + if (deptsiz.b.xfersize == 0 && deptsiz.b.pktcnt == 0) { + byte_count = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; +DWC_DEBUGPL(DBG_PCDV,"byte_count(%.8x) = (ep->dwc_ep.xfer_len(%.8x) - ep->dwc_ep.xfer_count(%.8x)\n", byte_count ,ep->dwc_ep.xfer_len , ep->dwc_ep.xfer_count ); + + ep->dwc_ep.xfer_buff += byte_count; + ep->dwc_ep.dma_addr += byte_count; + ep->dwc_ep.xfer_count += byte_count; + + DWC_DEBUGPL(DBG_PCDV, "%s len=%d xfersize=%d pktcnt=%d\n", + ep->ep.name, ep->dwc_ep.xfer_len, + deptsiz.b.xfersize, deptsiz.b.pktcnt); + + if(ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { + //dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); +printk("Warning: transfer ended, but specified len is not accomplished!! ep->total_len=%.x,ep->dwc_ep.sent_zlp=%d, byte_count(%.8x) = (ep->dwc_ep.xfer_len(%.8x) - ep->dwc_ep.xfer_count(%.8x) - deptsiz.b.xfersize(%.8x)\n", ep->dwc_ep.total_len, ep->dwc_ep.sent_zlp, byte_count ,ep->dwc_ep.xfer_len , ep->dwc_ep.xfer_count , deptsiz.b.xfersize); + } else if(ep->dwc_ep.sent_zlp) { + /* + * This fragment of code should initiate 0 + * length trasfer in case if it is queued + * a trasfer with size divisible to EPs max + * packet size and with usb_request zero field + * is set, which means that after data is transfered, + * it is also should be transfered + * a 0 length packet at the end. For Slave and + * Buffer DMA modes in this case SW has + * to initiate 2 transfers one with transfer size, + * and the second with 0 size. For Desriptor + * DMA mode SW is able to initiate a transfer, + * which will handle all the packets including + * the last 0 legth. + */ + ep->dwc_ep.sent_zlp = 0; + dwc_otg_ep_start_zl_transfer(core_if, &ep->dwc_ep); + } else { + is_last = 1; + } + } else { + DWC_WARN("Incomplete transfer (%s-%s [siz=%d pkt=%d])\n", + ep->ep.name, (ep->dwc_ep.is_in?"IN":"OUT"), + deptsiz.b.xfersize, deptsiz.b.pktcnt); + } + } else { + + dma_desc = ep->dwc_ep.desc_addr; + byte_count = 0; + ep->dwc_ep.sent_zlp = 0; + + for(i = 0; i < ep->dwc_ep.desc_cnt; ++i) { + desc_sts.d32 = readl(dma_desc); + byte_count += desc_sts.b.bytes; + dma_desc++; + } + + if(byte_count == 0) { + ep->dwc_ep.xfer_count = ep->dwc_ep.total_len; + is_last = 1; + } else { + DWC_WARN("Incomplete transfer\n"); + } + } + } else { + if (deptsiz.b.xfersize == 0 && deptsiz.b.pktcnt == 0) { + /* Check if the whole transfer was completed, + * if no, setup transfer for next portion of data + */ + DWC_DEBUGPL(DBG_PCDV, "%s len=%d xfersize=%d pktcnt=%d\n", + ep->ep.name, ep->dwc_ep.xfer_len, + deptsiz.b.xfersize, deptsiz.b.pktcnt); + if(ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { + //dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); +printk("Warning: transfer ended, but specified len is not accomplished!! ep->total_len=%.x,ep->dwc_ep.sent_zlp=%d, ep->dwc_ep.xfer_len(%.8x) \n", ep->dwc_ep.total_len, ep->dwc_ep.sent_zlp, ep->dwc_ep.xfer_len ); + } else if(ep->dwc_ep.sent_zlp) { + /* + * This fragment of code should initiate 0 + * length trasfer in case if it is queued + * a trasfer with size divisible to EPs max + * packet size and with usb_request zero field + * is set, which means that after data is transfered, + * it is also should be transfered + * a 0 length packet at the end. For Slave and + * Buffer DMA modes in this case SW has + * to initiate 2 transfers one with transfer size, + * and the second with 0 size. For Desriptor + * DMA mode SW is able to initiate a transfer, + * which will handle all the packets including + * the last 0 legth. + */ + ep->dwc_ep.sent_zlp = 0; + dwc_otg_ep_start_zl_transfer(core_if, &ep->dwc_ep); + } else { + is_last = 1; + } + } + else { + DWC_WARN("Incomplete transfer (%s-%s [siz=%d pkt=%d])\n", + ep->ep.name, (ep->dwc_ep.is_in?"IN":"OUT"), + deptsiz.b.xfersize, deptsiz.b.pktcnt); + } + } + } else { + dwc_otg_dev_out_ep_regs_t *out_ep_regs = + dev_if->out_ep_regs[ep->dwc_ep.num]; + desc_sts.d32 = 0; + if(core_if->dma_enable) { + //dma_unmap_single(NULL,ep->dwc_ep.dma_addr,ep->dwc_ep.xfer_count,DMA_FROM_DEVICE); + if(core_if->dma_desc_enable) { + DWC_WARN("\n\n%s: we need a cache invalidation here!!\n\n",__func__); + dma_desc = ep->dwc_ep.desc_addr; + byte_count = 0; + ep->dwc_ep.sent_zlp = 0; + for(i = 0; i < ep->dwc_ep.desc_cnt; ++i) { + desc_sts.d32 = readl(dma_desc); + byte_count += desc_sts.b.bytes; + dma_desc++; + } + + ep->dwc_ep.xfer_count = ep->dwc_ep.total_len + - byte_count + ((4 - (ep->dwc_ep.total_len & 0x3)) & 0x3); + + //todo: invalidate cache & aligned buf patch on completion + // + + is_last = 1; + } else { + deptsiz.d32 = 0; + deptsiz.d32 = dwc_read_reg32(&out_ep_regs->doeptsiz); + + byte_count = (ep->dwc_ep.xfer_len - + ep->dwc_ep.xfer_count - deptsiz.b.xfersize); + +// dma_sync_single_for_device(NULL,ep->dwc_ep.dma_addr,byte_count,DMA_FROM_DEVICE); + +DWC_DEBUGPL(DBG_PCDV,"ep->total_len=%.x,ep->dwc_ep.sent_zlp=%d, byte_count(%.8x) = (ep->dwc_ep.xfer_len(%.8x) - ep->dwc_ep.xfer_count(%.8x) - deptsiz.b.xfersize(%.8x)\n", ep->dwc_ep.total_len, ep->dwc_ep.sent_zlp, byte_count ,ep->dwc_ep.xfer_len , ep->dwc_ep.xfer_count , deptsiz.b.xfersize); + //todo: invalidate cache & aligned buf patch on completion + dma_sync_single_for_device(NULL,ep->dwc_ep.dma_addr,byte_count,DMA_FROM_DEVICE); + aligned_buf_patch_on_buf_dma_oep_completion(ep,byte_count); + + ep->dwc_ep.xfer_buff += byte_count; + ep->dwc_ep.dma_addr += byte_count; + ep->dwc_ep.xfer_count += byte_count; + + /* Check if the whole transfer was completed, + * if no, setup transfer for next portion of data + */ + if(ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { + //dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); +printk("Warning: transfer ended, but specified len is not accomplished!! ep->total_len=%.x,ep->dwc_ep.sent_zlp=%d, byte_count(%.8x) = (ep->dwc_ep.xfer_len(%.8x) - ep->dwc_ep.xfer_count(%.8x) - deptsiz.b.xfersize(%.8x)\n", ep->dwc_ep.total_len, ep->dwc_ep.sent_zlp, byte_count ,ep->dwc_ep.xfer_len , ep->dwc_ep.xfer_count , deptsiz.b.xfersize); + } + else if(ep->dwc_ep.sent_zlp) { + /* + * This fragment of code should initiate 0 + * length trasfer in case if it is queued + * a trasfer with size divisible to EPs max + * packet size and with usb_request zero field + * is set, which means that after data is transfered, + * it is also should be transfered + * a 0 length packet at the end. For Slave and + * Buffer DMA modes in this case SW has + * to initiate 2 transfers one with transfer size, + * and the second with 0 size. For Desriptor + * DMA mode SW is able to initiate a transfer, + * which will handle all the packets including + * the last 0 legth. + */ + ep->dwc_ep.sent_zlp = 0; + dwc_otg_ep_start_zl_transfer(core_if, &ep->dwc_ep); + } else { + is_last = 1; + } + } + } else { + /* Check if the whole transfer was completed, + * if no, setup transfer for next portion of data + */ + if(ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { + //dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); +printk("Warning: transfer ended, but specified len is not accomplished!! ep->total_len=%.x,ep->dwc_ep.sent_zlp=%d, ep->dwc_ep.xfer_len(%.8x) \n", ep->dwc_ep.total_len, ep->dwc_ep.sent_zlp, ep->dwc_ep.xfer_len ); + } + else if(ep->dwc_ep.sent_zlp) { + /* + * This fragment of code should initiate 0 + * length trasfer in case if it is queued + * a trasfer with size divisible to EPs max + * packet size and with usb_request zero field + * is set, which means that after data is transfered, + * it is also should be transfered + * a 0 length packet at the end. For Slave and + * Buffer DMA modes in this case SW has + * to initiate 2 transfers one with transfer size, + * and the second with 0 size. For Desriptor + * DMA mode SW is able to initiate a transfer, + * which will handle all the packets including + * the last 0 legth. + */ + ep->dwc_ep.sent_zlp = 0; + dwc_otg_ep_start_zl_transfer(core_if, &ep->dwc_ep); + } else { + is_last = 1; + } + } + +#ifdef DEBUG + + DWC_DEBUGPL(DBG_PCDV, "addr %p, %s len=%d cnt=%d xsize=%d pktcnt=%d\n", + &out_ep_regs->doeptsiz, ep->ep.name, ep->dwc_ep.xfer_len, + ep->dwc_ep.xfer_count, + deptsiz.b.xfersize, + deptsiz.b.pktcnt); +#endif + } + + /* Complete the request */ + if (is_last) { + req->req.actual = ep->dwc_ep.xfer_count; + + dwc_otg_request_done(ep, req, 0); + + ep->dwc_ep.start_xfer_buff = 0; + ep->dwc_ep.xfer_buff = 0; + ep->dwc_ep.xfer_len = 0; + + /* If there is a request in the queue start it.*/ + start_next_request(ep); + } +} + + +#ifdef DWC_EN_ISOC + +/** + * This function BNA interrupt for Isochronous EPs + * + */ +static void dwc_otg_pcd_handle_iso_bna(dwc_otg_pcd_ep_t *ep) +{ + dwc_ep_t *dwc_ep = &ep->dwc_ep; + volatile uint32_t *addr; + depctl_data_t depctl = {.d32 = 0}; + dwc_otg_pcd_t *pcd = ep->pcd; + dwc_otg_dma_desc_t *dma_desc; + int i; + + dma_desc = dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * (dwc_ep->proc_buf_num); + + if(dwc_ep->is_in) { + desc_sts_data_t sts = {.d32 = 0}; + for(i = 0;i < dwc_ep->desc_cnt; ++i, ++dma_desc) + { + sts.d32 = readl(&dma_desc->status); + sts.b_iso_in.bs = BS_HOST_READY; + writel(sts.d32,&dma_desc->status); + } + } + else { + desc_sts_data_t sts = {.d32 = 0}; + for(i = 0;i < dwc_ep->desc_cnt; ++i, ++dma_desc) + { + sts.d32 = readl(&dma_desc->status); + sts.b_iso_out.bs = BS_HOST_READY; + writel(sts.d32,&dma_desc->status); + } + } + + if(dwc_ep->is_in == 0){ + addr = &GET_CORE_IF(pcd)->dev_if->out_ep_regs[dwc_ep->num]->doepctl; + } + else{ + addr = &GET_CORE_IF(pcd)->dev_if->in_ep_regs[dwc_ep->num]->diepctl; + } + depctl.b.epena = 1; + dwc_modify_reg32(addr,depctl.d32,depctl.d32); +} + +/** + * This function sets latest iso packet information(non-PTI mode) + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +void set_current_pkt_info(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + deptsiz_data_t deptsiz = { .d32 = 0 }; + dma_addr_t dma_addr; + uint32_t offset; + + if(ep->proc_buf_num) + dma_addr = ep->dma_addr1; + else + dma_addr = ep->dma_addr0; + + if(ep->is_in) { + deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz); + offset = ep->data_per_frame; + } else { + deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doeptsiz); + offset = ep->data_per_frame + (0x4 & (0x4 - (ep->data_per_frame & 0x3))); + } + + if(!deptsiz.b.xfersize) { + ep->pkt_info[ep->cur_pkt].length = ep->data_per_frame; + ep->pkt_info[ep->cur_pkt].offset = ep->cur_pkt_dma_addr - dma_addr; + ep->pkt_info[ep->cur_pkt].status = 0; + } else { + ep->pkt_info[ep->cur_pkt].length = ep->data_per_frame; + ep->pkt_info[ep->cur_pkt].offset = ep->cur_pkt_dma_addr - dma_addr; + ep->pkt_info[ep->cur_pkt].status = -ENODATA; + } + ep->cur_pkt_addr += offset; + ep->cur_pkt_dma_addr += offset; + ep->cur_pkt++; +} + +/** + * This function sets latest iso packet information(DDMA mode) + * + * @param core_if Programming view of DWC_otg controller. + * @param dwc_ep The EP to start the transfer on. + * + */ +static void set_ddma_iso_pkts_info(dwc_otg_core_if_t *core_if, dwc_ep_t *dwc_ep) +{ + dwc_otg_dma_desc_t* dma_desc; + desc_sts_data_t sts = {.d32 = 0}; + iso_pkt_info_t *iso_packet; + uint32_t data_per_desc; + uint32_t offset; + int i, j; + + iso_packet = dwc_ep->pkt_info; + + /** Reinit closed DMA Descriptors*/ + /** ISO OUT EP */ + if(dwc_ep->is_in == 0) { + dma_desc = dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; + offset = 0; + + for(i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; i+= dwc_ep->pkt_per_frm) + { + for(j = 0; j < dwc_ep->pkt_per_frm; ++j) + { + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + + sts.d32 = readl(&dma_desc->status); + + /* Write status in iso_packet_decsriptor */ + iso_packet->status = sts.b_iso_out.rxsts + (sts.b_iso_out.bs^BS_DMA_DONE); + if(iso_packet->status) { + iso_packet->status = -ENODATA; + } + + /* Received data length */ + if(!sts.b_iso_out.rxbytes){ + iso_packet->length = data_per_desc - sts.b_iso_out.rxbytes; + } else { + iso_packet->length = data_per_desc - sts.b_iso_out.rxbytes + + (4 - dwc_ep->data_per_frame % 4); + } + + iso_packet->offset = offset; + + offset += data_per_desc; + dma_desc ++; + iso_packet ++; + } + } + + for(j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) + { + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + + sts.d32 = readl(&dma_desc->status); + + /* Write status in iso_packet_decsriptor */ + iso_packet->status = sts.b_iso_out.rxsts + (sts.b_iso_out.bs^BS_DMA_DONE); + if(iso_packet->status) { + iso_packet->status = -ENODATA; + } + + /* Received data length */ + iso_packet->length = dwc_ep->data_per_frame - sts.b_iso_out.rxbytes; + + iso_packet->offset = offset; + + offset += data_per_desc; + iso_packet++; + dma_desc++; + } + + sts.d32 = readl(&dma_desc->status); + + /* Write status in iso_packet_decsriptor */ + iso_packet->status = sts.b_iso_out.rxsts + (sts.b_iso_out.bs^BS_DMA_DONE); + if(iso_packet->status) { + iso_packet->status = -ENODATA; + } + /* Received data length */ + if(!sts.b_iso_out.rxbytes){ + iso_packet->length = dwc_ep->data_per_frame - sts.b_iso_out.rxbytes; + } else { + iso_packet->length = dwc_ep->data_per_frame - sts.b_iso_out.rxbytes + + (4 - dwc_ep->data_per_frame % 4); + } + + iso_packet->offset = offset; + } + else /** ISO IN EP */ + { + dma_desc = dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; + + for(i = 0; i < dwc_ep->desc_cnt - 1; i++) + { + sts.d32 = readl(&dma_desc->status); + + /* Write status in iso packet descriptor */ + iso_packet->status = sts.b_iso_in.txsts + (sts.b_iso_in.bs^BS_DMA_DONE); + if(iso_packet->status != 0) { + iso_packet->status = -ENODATA; + + } + /* Bytes has been transfered */ + iso_packet->length = dwc_ep->data_per_frame - sts.b_iso_in.txbytes; + + dma_desc ++; + iso_packet++; + } + + sts.d32 = readl(&dma_desc->status); + while(sts.b_iso_in.bs == BS_DMA_BUSY) { + sts.d32 = readl(&dma_desc->status); + } + + /* Write status in iso packet descriptor ??? do be done with ERROR codes*/ + iso_packet->status = sts.b_iso_in.txsts + (sts.b_iso_in.bs^BS_DMA_DONE); + if(iso_packet->status != 0) { + iso_packet->status = -ENODATA; + } + + /* Bytes has been transfered */ + iso_packet->length = dwc_ep->data_per_frame - sts.b_iso_in.txbytes; + } +} + +/** + * This function reinitialize DMA Descriptors for Isochronous transfer + * + * @param core_if Programming view of DWC_otg controller. + * @param dwc_ep The EP to start the transfer on. + * + */ +static void reinit_ddma_iso_xfer(dwc_otg_core_if_t *core_if, dwc_ep_t *dwc_ep) +{ + int i, j; + dwc_otg_dma_desc_t* dma_desc; + dma_addr_t dma_ad; + volatile uint32_t *addr; + desc_sts_data_t sts = { .d32 =0 }; + uint32_t data_per_desc; + + if(dwc_ep->is_in == 0) { + addr = &core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl; + } + else { + addr = &core_if->dev_if->in_ep_regs[dwc_ep->num]->diepctl; + } + + + if(dwc_ep->proc_buf_num == 0) { + /** Buffer 0 descriptors setup */ + dma_ad = dwc_ep->dma_addr0; + } + else { + /** Buffer 1 descriptors setup */ + dma_ad = dwc_ep->dma_addr1; + } + + /** Reinit closed DMA Descriptors*/ + /** ISO OUT EP */ + if(dwc_ep->is_in == 0) { + dma_desc = dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; + + sts.b_iso_out.bs = BS_HOST_READY; + sts.b_iso_out.rxsts = 0; + sts.b_iso_out.l = 0; + sts.b_iso_out.sp = 0; + sts.b_iso_out.ioc = 0; + sts.b_iso_out.pid = 0; + sts.b_iso_out.framenum = 0; + + for(i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; i+= dwc_ep->pkt_per_frm) + { + for(j = 0; j < dwc_ep->pkt_per_frm; ++j) + { + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + sts.b_iso_out.rxbytes = data_per_desc; + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + + //(uint32_t)dma_ad += data_per_desc; + dma_ad = (uint32_t)dma_ad + data_per_desc; + dma_desc ++; + } + } + + for(j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) + { + + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + sts.b_iso_out.rxbytes = data_per_desc; + + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + + dma_desc++; + //(uint32_t)dma_ad += data_per_desc; + dma_ad = (uint32_t)dma_ad + data_per_desc; + } + + sts.b_iso_out.ioc = 1; + sts.b_iso_out.l = dwc_ep->proc_buf_num; + + data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? + dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; + sts.b_iso_out.rxbytes = data_per_desc; + + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + } + else /** ISO IN EP */ + { + dma_desc = dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; + + sts.b_iso_in.bs = BS_HOST_READY; + sts.b_iso_in.txsts = 0; + sts.b_iso_in.sp = 0; + sts.b_iso_in.ioc = 0; + sts.b_iso_in.pid = dwc_ep->pkt_per_frm; + sts.b_iso_in.framenum = dwc_ep->next_frame; + sts.b_iso_in.txbytes = dwc_ep->data_per_frame; + sts.b_iso_in.l = 0; + + for(i = 0; i < dwc_ep->desc_cnt - 1; i++) + { + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + + sts.b_iso_in.framenum += dwc_ep->bInterval; + //(uint32_t)dma_ad += dwc_ep->data_per_frame; + dma_ad = (uint32_t)dma_ad + dwc_ep->data_per_frame; + dma_desc ++; + } + + sts.b_iso_in.ioc = 1; + sts.b_iso_in.l = dwc_ep->proc_buf_num; + + writel((uint32_t)dma_ad, &dma_desc->buf); + writel(sts.d32, &dma_desc->status); + + dwc_ep->next_frame = sts.b_iso_in.framenum + dwc_ep->bInterval * 1; + } + dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; +} + + +/** + * This function is to handle Iso EP transfer complete interrupt + * in case Iso out packet was dropped + * + * @param core_if Programming view of DWC_otg controller. + * @param dwc_ep The EP for wihich transfer complete was asserted + * + */ +static uint32_t handle_iso_out_pkt_dropped(dwc_otg_core_if_t *core_if, dwc_ep_t *dwc_ep) +{ + uint32_t dma_addr; + uint32_t drp_pkt; + uint32_t drp_pkt_cnt; + deptsiz_data_t deptsiz = { .d32 = 0 }; + depctl_data_t depctl = { .d32 = 0 }; + int i; + + deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doeptsiz); + + drp_pkt = dwc_ep->pkt_cnt - deptsiz.b.pktcnt; + drp_pkt_cnt = dwc_ep->pkt_per_frm - (drp_pkt % dwc_ep->pkt_per_frm); + + /* Setting dropped packets status */ + for(i = 0; i < drp_pkt_cnt; ++i) { + dwc_ep->pkt_info[drp_pkt].status = -ENODATA; + drp_pkt ++; + deptsiz.b.pktcnt--; + } + + + if(deptsiz.b.pktcnt > 0) { + deptsiz.b.xfersize = dwc_ep->xfer_len - (dwc_ep->pkt_cnt - deptsiz.b.pktcnt) * dwc_ep->maxpacket; + } else { + deptsiz.b.xfersize = 0; + deptsiz.b.pktcnt = 0; + } + + dwc_write_reg32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doeptsiz, deptsiz.d32); + + if(deptsiz.b.pktcnt > 0) { + if(dwc_ep->proc_buf_num) { + dma_addr = dwc_ep->dma_addr1 + dwc_ep->xfer_len - deptsiz.b.xfersize; + } else { + dma_addr = dwc_ep->dma_addr0 + dwc_ep->xfer_len - deptsiz.b.xfersize;; + } + + VERIFY_PCD_DMA_ADDR(dma_addr); + dwc_write_reg32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doepdma, dma_addr); + + /** Re-enable endpoint, clear nak */ + depctl.d32 = 0; + depctl.b.epena = 1; + depctl.b.cnak = 1; + + dwc_modify_reg32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl, + depctl.d32,depctl.d32); + return 0; + } else { + return 1; + } +} + +/** + * This function sets iso packets information(PTI mode) + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +static uint32_t set_iso_pkts_info(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) +{ + int i, j; + dma_addr_t dma_ad; + iso_pkt_info_t *packet_info = ep->pkt_info; + uint32_t offset; + uint32_t frame_data; + deptsiz_data_t deptsiz; + + if(ep->proc_buf_num == 0) { + /** Buffer 0 descriptors setup */ + dma_ad = ep->dma_addr0; + } + else { + /** Buffer 1 descriptors setup */ + dma_ad = ep->dma_addr1; + } + + if(ep->is_in) { + deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz); + } else { + deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doeptsiz); + } + + if(!deptsiz.b.xfersize) { + offset = 0; + for(i = 0; i < ep->pkt_cnt; i += ep->pkt_per_frm) + { + frame_data = ep->data_per_frame; + for(j = 0; j < ep->pkt_per_frm; ++j) { + + /* Packet status - is not set as initially + * it is set to 0 and if packet was sent + successfully, status field will remain 0*/ + + /* Bytes has been transfered */ + packet_info->length = (ep->maxpacket < frame_data) ? + ep->maxpacket : frame_data; + + /* Received packet offset */ + packet_info->offset = offset; + offset += packet_info->length; + frame_data -= packet_info->length; + + packet_info ++; + } + } + return 1; + } else { + /* This is a workaround for in case of Transfer Complete with + * PktDrpSts interrupts merging - in this case Transfer complete + * interrupt for Isoc Out Endpoint is asserted without PktDrpSts + * set and with DOEPTSIZ register non zero. Investigations showed, + * that this happens when Out packet is dropped, but because of + * interrupts merging during first interrupt handling PktDrpSts + * bit is cleared and for next merged interrupts it is not reset. + * In this case SW hadles the interrupt as if PktDrpSts bit is set. + */ + if(ep->is_in) { + return 1; + } else { + return handle_iso_out_pkt_dropped(core_if, ep); + } + } +} + +/** + * This function is to handle Iso EP transfer complete interrupt + * + * @param ep The EP for which transfer complete was asserted + * + */ +static void complete_iso_ep(dwc_otg_pcd_ep_t *ep) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd); + dwc_ep_t *dwc_ep = &ep->dwc_ep; + uint8_t is_last = 0; + + if(core_if->dma_enable) { + if(core_if->dma_desc_enable) { + set_ddma_iso_pkts_info(core_if, dwc_ep); + reinit_ddma_iso_xfer(core_if, dwc_ep); + is_last = 1; + } else { + if(core_if->pti_enh_enable) { + if(set_iso_pkts_info(core_if, dwc_ep)) { + dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; + dwc_otg_iso_ep_start_buf_transfer(core_if, dwc_ep); + is_last = 1; + } + } else { + set_current_pkt_info(core_if, dwc_ep); + if(dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { + is_last = 1; + dwc_ep->cur_pkt = 0; + dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; + if(dwc_ep->proc_buf_num) { + dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff1; + dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr1; + } else { + dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff0; + dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr0; + } + } + dwc_otg_iso_ep_start_frm_transfer(core_if, dwc_ep); + } + } + } else { + set_current_pkt_info(core_if, dwc_ep); + if(dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { + is_last = 1; + dwc_ep->cur_pkt = 0; + dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; + if(dwc_ep->proc_buf_num) { + dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff1; + dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr1; + } else { + dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff0; + dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr0; + } + } + dwc_otg_iso_ep_start_frm_transfer(core_if, dwc_ep); + } + if(is_last) + dwc_otg_iso_buffer_done(ep, ep->iso_req); +} + +#endif //DWC_EN_ISOC + + +/** + * This function handles EP0 Control transfers. + * + * The state of the control tranfers are tracked in + * <code>ep0state</code>. + */ +static void handle_ep0(dwc_otg_pcd_t *pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + desc_sts_data_t desc_sts; + deptsiz0_data_t deptsiz; + uint32_t byte_count; + +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "%s()\n", __func__); + print_ep0_state(pcd); +#endif + + switch (pcd->ep0state) { + case EP0_DISCONNECT: + break; + + case EP0_IDLE: + pcd->request_config = 0; + + pcd_setup(pcd); + break; + + case EP0_IN_DATA_PHASE: +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, "DATA_IN EP%d-%s: type=%d, mps=%d\n", + ep0->dwc_ep.num, (ep0->dwc_ep.is_in ?"IN":"OUT"), + ep0->dwc_ep.type, ep0->dwc_ep.maxpacket); +#endif + + if (core_if->dma_enable != 0) { + /* + * For EP0 we can only program 1 packet at a time so we + * need to do the make calculations after each complete. + * Call write_packet to make the calculations, as in + * slave mode, and use those values to determine if we + * can complete. + */ + if(core_if->dma_desc_enable == 0) { + deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[0]->dieptsiz); + byte_count = ep0->dwc_ep.xfer_len - deptsiz.b.xfersize; + } + else { + desc_sts.d32 = readl(core_if->dev_if->in_desc_addr); + byte_count = ep0->dwc_ep.xfer_len - desc_sts.b.bytes; + } + + ep0->dwc_ep.xfer_count += byte_count; + ep0->dwc_ep.xfer_buff += byte_count; + ep0->dwc_ep.dma_addr += byte_count; + } + if (ep0->dwc_ep.xfer_count < ep0->dwc_ep.total_len) { + dwc_otg_ep0_continue_transfer (GET_CORE_IF(pcd), &ep0->dwc_ep); + DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n"); + } + else if(ep0->dwc_ep.sent_zlp) { + dwc_otg_ep0_continue_transfer (GET_CORE_IF(pcd), &ep0->dwc_ep); + ep0->dwc_ep.sent_zlp = 0; + DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n"); + } + else { + ep0_complete_request(ep0); + DWC_DEBUGPL(DBG_PCD, "COMPLETE TRANSFER\n"); + } + break; + case EP0_OUT_DATA_PHASE: +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, "DATA_OUT EP%d-%s: type=%d, mps=%d\n", + ep0->dwc_ep.num, (ep0->dwc_ep.is_in ?"IN":"OUT"), + ep0->dwc_ep.type, ep0->dwc_ep.maxpacket); +#endif + if (core_if->dma_enable != 0) { + if(core_if->dma_desc_enable == 0) { + deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->out_ep_regs[0]->doeptsiz); + byte_count = ep0->dwc_ep.maxpacket - deptsiz.b.xfersize; + + //todo: invalidate cache & aligned buf patch on completion + dma_sync_single_for_device(NULL,ep0->dwc_ep.dma_addr,byte_count,DMA_FROM_DEVICE); + aligned_buf_patch_on_buf_dma_oep_completion(ep0,byte_count); + } + else { + desc_sts.d32 = readl(core_if->dev_if->out_desc_addr); + byte_count = ep0->dwc_ep.maxpacket - desc_sts.b.bytes; + + //todo: invalidate cache & aligned buf patch on completion + // + + } + ep0->dwc_ep.xfer_count += byte_count; + ep0->dwc_ep.xfer_buff += byte_count; + ep0->dwc_ep.dma_addr += byte_count; + } + if (ep0->dwc_ep.xfer_count < ep0->dwc_ep.total_len) { + dwc_otg_ep0_continue_transfer (GET_CORE_IF(pcd), &ep0->dwc_ep); + DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n"); + } + else if(ep0->dwc_ep.sent_zlp) { + dwc_otg_ep0_continue_transfer (GET_CORE_IF(pcd), &ep0->dwc_ep); + ep0->dwc_ep.sent_zlp = 0; + DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n"); + } + else { + ep0_complete_request(ep0); + DWC_DEBUGPL(DBG_PCD, "COMPLETE TRANSFER\n"); + } + break; + + case EP0_IN_STATUS_PHASE: + case EP0_OUT_STATUS_PHASE: + DWC_DEBUGPL(DBG_PCD, "CASE: EP0_STATUS\n"); + ep0_complete_request(ep0); + pcd->ep0state = EP0_IDLE; + ep0->stopped = 1; + ep0->dwc_ep.is_in = 0; /* OUT for next SETUP */ + + /* Prepare for more SETUP Packets */ + if(core_if->dma_enable) { + ep0_out_start(core_if, pcd); + } + break; + + case EP0_STALL: + DWC_ERROR("EP0 STALLed, should not get here pcd_setup()\n"); + break; + } +#ifdef DEBUG_EP0 + print_ep0_state(pcd); +#endif +} + + +/** + * Restart transfer + */ +static void restart_transfer(dwc_otg_pcd_t *pcd, const uint32_t epnum) +{ + dwc_otg_core_if_t *core_if; + dwc_otg_dev_if_t *dev_if; + deptsiz_data_t dieptsiz = {.d32=0}; + dwc_otg_pcd_ep_t *ep; + + ep = get_in_ep(pcd, epnum); + +#ifdef DWC_EN_ISOC + if(ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) { + return; + } +#endif /* DWC_EN_ISOC */ + + core_if = GET_CORE_IF(pcd); + dev_if = core_if->dev_if; + + dieptsiz.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->dieptsiz); + + DWC_DEBUGPL(DBG_PCD,"xfer_buff=%p xfer_count=%0x xfer_len=%0x" + " stopped=%d\n", ep->dwc_ep.xfer_buff, + ep->dwc_ep.xfer_count, ep->dwc_ep.xfer_len , + ep->stopped); + /* + * If xfersize is 0 and pktcnt in not 0, resend the last packet. + */ + if (dieptsiz.b.pktcnt && dieptsiz.b.xfersize == 0 && + ep->dwc_ep.start_xfer_buff != 0) { + if (ep->dwc_ep.total_len <= ep->dwc_ep.maxpacket) { + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.xfer_buff = ep->dwc_ep.start_xfer_buff; + ep->dwc_ep.xfer_len = ep->dwc_ep.xfer_count; + } + else { + ep->dwc_ep.xfer_count -= ep->dwc_ep.maxpacket; + /* convert packet size to dwords. */ + ep->dwc_ep.xfer_buff -= ep->dwc_ep.maxpacket; + ep->dwc_ep.xfer_len = ep->dwc_ep.xfer_count; + } + ep->stopped = 0; + DWC_DEBUGPL(DBG_PCD,"xfer_buff=%p xfer_count=%0x " + "xfer_len=%0x stopped=%d\n", + ep->dwc_ep.xfer_buff, + ep->dwc_ep.xfer_count, ep->dwc_ep.xfer_len , + ep->stopped + ); + if (epnum == 0) { + dwc_otg_ep0_start_transfer(core_if, &ep->dwc_ep); + } + else { + dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); + } + } +} + + +/** + * handle the IN EP disable interrupt. + */ +static inline void handle_in_ep_disable_intr(dwc_otg_pcd_t *pcd, + const uint32_t epnum) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + deptsiz_data_t dieptsiz = {.d32=0}; + dctl_data_t dctl = {.d32=0}; + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + + ep = get_in_ep(pcd, epnum); + dwc_ep = &ep->dwc_ep; + + if(dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + dwc_otg_flush_tx_fifo(core_if, dwc_ep->tx_fifo_num); + return; + } + + DWC_DEBUGPL(DBG_PCD,"diepctl%d=%0x\n", epnum, + dwc_read_reg32(&dev_if->in_ep_regs[epnum]->diepctl)); + dieptsiz.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->dieptsiz); + + DWC_DEBUGPL(DBG_ANY, "pktcnt=%d size=%d\n", + dieptsiz.b.pktcnt, + dieptsiz.b.xfersize); + + if (ep->stopped) { + /* Flush the Tx FIFO */ + dwc_otg_flush_tx_fifo(core_if, dwc_ep->tx_fifo_num); + /* Clear the Global IN NP NAK */ + dctl.d32 = 0; + dctl.b.cgnpinnak = 1; + dwc_modify_reg32(&dev_if->dev_global_regs->dctl, + dctl.d32, 0); + /* Restart the transaction */ + if (dieptsiz.b.pktcnt != 0 || + dieptsiz.b.xfersize != 0) { + restart_transfer(pcd, epnum); + } + } + else { + /* Restart the transaction */ + if (dieptsiz.b.pktcnt != 0 || + dieptsiz.b.xfersize != 0) { + restart_transfer(pcd, epnum); + } + DWC_DEBUGPL(DBG_ANY, "STOPPED!!!\n"); + } +} + +/** + * Handler for the IN EP timeout handshake interrupt. + */ +static inline void handle_in_ep_timeout_intr(dwc_otg_pcd_t *pcd, + const uint32_t epnum) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + +#ifdef DEBUG + deptsiz_data_t dieptsiz = {.d32=0}; + uint32_t num = 0; +#endif + dctl_data_t dctl = {.d32=0}; + dwc_otg_pcd_ep_t *ep; + + gintmsk_data_t intr_mask = {.d32 = 0}; + + ep = get_in_ep(pcd, epnum); + + /* Disable the NP Tx Fifo Empty Interrrupt */ + if (!core_if->dma_enable) { + intr_mask.b.nptxfempty = 1; + dwc_modify_reg32(&core_if->core_global_regs->gintmsk, intr_mask.d32, 0); + } + /** @todo NGS Check EP type. + * Implement for Periodic EPs */ + /* + * Non-periodic EP + */ + /* Enable the Global IN NAK Effective Interrupt */ + intr_mask.b.ginnakeff = 1; + dwc_modify_reg32(&core_if->core_global_regs->gintmsk, + 0, intr_mask.d32); + + /* Set Global IN NAK */ + dctl.b.sgnpinnak = 1; + dwc_modify_reg32(&dev_if->dev_global_regs->dctl, + dctl.d32, dctl.d32); + + ep->stopped = 1; + +#ifdef DEBUG + dieptsiz.d32 = dwc_read_reg32(&dev_if->in_ep_regs[num]->dieptsiz); + DWC_DEBUGPL(DBG_ANY, "pktcnt=%d size=%d\n", + dieptsiz.b.pktcnt, + dieptsiz.b.xfersize); +#endif + +#ifdef DISABLE_PERIODIC_EP + /* + * Set the NAK bit for this EP to + * start the disable process. + */ + diepctl.d32 = 0; + diepctl.b.snak = 1; + dwc_modify_reg32(&dev_if->in_ep_regs[num]->diepctl, diepctl.d32, diepctl.d32); + ep->disabling = 1; + ep->stopped = 1; +#endif +} + +/** + * Handler for the IN EP NAK interrupt. + */ +static inline int32_t handle_in_ep_nak_intr(dwc_otg_pcd_t *pcd, + const uint32_t epnum) +{ + /** @todo implement ISR */ + dwc_otg_core_if_t* core_if; + diepmsk_data_t intr_mask = { .d32 = 0}; + + DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "IN EP NAK"); + core_if = GET_CORE_IF(pcd); + intr_mask.b.nak = 1; + + if(core_if->multiproc_int_enable) { + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->diepeachintmsk[epnum], + intr_mask.d32, 0); + } else { + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->diepmsk, + intr_mask.d32, 0); + } + + return 1; +} + +/** + * Handler for the OUT EP Babble interrupt. + */ +static inline int32_t handle_out_ep_babble_intr(dwc_otg_pcd_t *pcd, + const uint32_t epnum) +{ + /** @todo implement ISR */ + dwc_otg_core_if_t* core_if; + doepmsk_data_t intr_mask = { .d32 = 0}; + + DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "OUT EP Babble"); + core_if = GET_CORE_IF(pcd); + intr_mask.b.babble = 1; + + if(core_if->multiproc_int_enable) { + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepeachintmsk[epnum], + intr_mask.d32, 0); + } else { + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepmsk, + intr_mask.d32, 0); + } + + return 1; +} + +/** + * Handler for the OUT EP NAK interrupt. + */ +static inline int32_t handle_out_ep_nak_intr(dwc_otg_pcd_t *pcd, + const uint32_t epnum) +{ + /** @todo implement ISR */ + dwc_otg_core_if_t* core_if; + doepmsk_data_t intr_mask = { .d32 = 0}; + + DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "OUT EP NAK"); + core_if = GET_CORE_IF(pcd); + intr_mask.b.nak = 1; + + if(core_if->multiproc_int_enable) { + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepeachintmsk[epnum], + intr_mask.d32, 0); + } else { + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepmsk, + intr_mask.d32, 0); + } + + return 1; +} + +/** + * Handler for the OUT EP NYET interrupt. + */ +static inline int32_t handle_out_ep_nyet_intr(dwc_otg_pcd_t *pcd, + const uint32_t epnum) +{ + /** @todo implement ISR */ + dwc_otg_core_if_t* core_if; + doepmsk_data_t intr_mask = { .d32 = 0}; + + DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "OUT EP NYET"); + core_if = GET_CORE_IF(pcd); + intr_mask.b.nyet = 1; + + if(core_if->multiproc_int_enable) { + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepeachintmsk[epnum], + intr_mask.d32, 0); + } else { + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepmsk, + intr_mask.d32, 0); + } + + return 1; +} + +/** + * This interrupt indicates that an IN EP has a pending Interrupt. + * The sequence for handling the IN EP interrupt is shown below: + * -# Read the Device All Endpoint Interrupt register + * -# Repeat the following for each IN EP interrupt bit set (from + * LSB to MSB). + * -# Read the Device Endpoint Interrupt (DIEPINTn) register + * -# If "Transfer Complete" call the request complete function + * -# If "Endpoint Disabled" complete the EP disable procedure. + * -# If "AHB Error Interrupt" log error + * -# If "Time-out Handshake" log error + * -# If "IN Token Received when TxFIFO Empty" write packet to Tx + * FIFO. + * -# If "IN Token EP Mismatch" (disable, this is handled by EP + * Mismatch Interrupt) + */ +static int32_t dwc_otg_pcd_handle_in_ep_intr(dwc_otg_pcd_t *pcd) +{ +#define CLEAR_IN_EP_INTR(__core_if,__epnum,__intr) \ +do { \ + diepint_data_t diepint = {.d32=0}; \ + diepint.b.__intr = 1; \ + dwc_write_reg32(&__core_if->dev_if->in_ep_regs[__epnum]->diepint, \ + diepint.d32); \ +} while (0) + + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + diepint_data_t diepint = {.d32=0}; + dctl_data_t dctl = {.d32=0}; + depctl_data_t depctl = {.d32=0}; + uint32_t ep_intr; + uint32_t epnum = 0; + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + gintmsk_data_t intr_mask = {.d32 = 0}; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, pcd); + + /* Read in the device interrupt bits */ + ep_intr = dwc_otg_read_dev_all_in_ep_intr(core_if); + + /* Service the Device IN interrupts for each endpoint */ + while(ep_intr) { + if (ep_intr&0x1) { + uint32_t empty_msk; + /* Get EP pointer */ + ep = get_in_ep(pcd, epnum); + dwc_ep = &ep->dwc_ep; + + depctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->diepctl); + empty_msk = dwc_read_reg32(&dev_if->dev_global_regs->dtknqr4_fifoemptymsk); + + DWC_DEBUGPL(DBG_PCDV, + "IN EP INTERRUPT - %d\nepmty_msk - %8x diepctl - %8x\n", + epnum, + empty_msk, + depctl.d32); + + DWC_DEBUGPL(DBG_PCD, + "EP%d-%s: type=%d, mps=%d\n", + dwc_ep->num, (dwc_ep->is_in ?"IN":"OUT"), + dwc_ep->type, dwc_ep->maxpacket); + + diepint.d32 = dwc_otg_read_dev_in_ep_intr(core_if, dwc_ep); + + DWC_DEBUGPL(DBG_PCDV, "EP %d Interrupt Register - 0x%x\n", epnum, diepint.d32); + /* Transfer complete */ + if (diepint.b.xfercompl) { + /* Disable the NP Tx FIFO Empty + * Interrrupt */ + if(core_if->en_multiple_tx_fifo == 0) { + intr_mask.b.nptxfempty = 1; + dwc_modify_reg32(&core_if->core_global_regs->gintmsk, intr_mask.d32, 0); + } + else { + /* Disable the Tx FIFO Empty Interrupt for this EP */ + uint32_t fifoemptymsk = 0x1 << dwc_ep->num; + dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, + fifoemptymsk, 0); + } + /* Clear the bit in DIEPINTn for this interrupt */ + CLEAR_IN_EP_INTR(core_if,epnum,xfercompl); + + /* Complete the transfer */ + if (epnum == 0) { + handle_ep0(pcd); + } +#ifdef DWC_EN_ISOC + else if(dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + if(!ep->stopped) + complete_iso_ep(ep); + } +#endif //DWC_EN_ISOC + else { + + complete_ep(ep); + } + } + /* Endpoint disable */ + if (diepint.b.epdisabled) { + DWC_DEBUGPL(DBG_ANY,"EP%d IN disabled\n", epnum); + handle_in_ep_disable_intr(pcd, epnum); + + /* Clear the bit in DIEPINTn for this interrupt */ + CLEAR_IN_EP_INTR(core_if,epnum,epdisabled); + } + /* AHB Error */ + if (diepint.b.ahberr) { + DWC_DEBUGPL(DBG_ANY,"EP%d IN AHB Error\n", epnum); + /* Clear the bit in DIEPINTn for this interrupt */ + CLEAR_IN_EP_INTR(core_if,epnum,ahberr); + } + /* TimeOUT Handshake (non-ISOC IN EPs) */ + if (diepint.b.timeout) { + DWC_DEBUGPL(DBG_ANY,"EP%d IN Time-out\n", epnum); + handle_in_ep_timeout_intr(pcd, epnum); + + CLEAR_IN_EP_INTR(core_if,epnum,timeout); + } + /** IN Token received with TxF Empty */ + if (diepint.b.intktxfemp) { + DWC_DEBUGPL(DBG_ANY,"EP%d IN TKN TxFifo Empty\n", + epnum); + if (!ep->stopped && epnum != 0) { + + diepmsk_data_t diepmsk = { .d32 = 0}; + diepmsk.b.intktxfemp = 1; + + if(core_if->multiproc_int_enable) { + dwc_modify_reg32(&dev_if->dev_global_regs->diepeachintmsk[epnum], + diepmsk.d32, 0); + } else { + dwc_modify_reg32(&dev_if->dev_global_regs->diepmsk, diepmsk.d32, 0); + } + start_next_request(ep); + } + else if(core_if->dma_desc_enable && epnum == 0 && + pcd->ep0state == EP0_OUT_STATUS_PHASE) { + // EP0 IN set STALL + depctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->diepctl); + + /* set the disable and stall bits */ + if (depctl.b.epena) { + depctl.b.epdis = 1; + } + depctl.b.stall = 1; + dwc_write_reg32(&dev_if->in_ep_regs[epnum]->diepctl, depctl.d32); + } + CLEAR_IN_EP_INTR(core_if,epnum,intktxfemp); + } + /** IN Token Received with EP mismatch */ + if (diepint.b.intknepmis) { + DWC_DEBUGPL(DBG_ANY,"EP%d IN TKN EP Mismatch\n", epnum); + CLEAR_IN_EP_INTR(core_if,epnum,intknepmis); + } + /** IN Endpoint NAK Effective */ + if (diepint.b.inepnakeff) { + DWC_DEBUGPL(DBG_ANY,"EP%d IN EP NAK Effective\n", epnum); + /* Periodic EP */ + if (ep->disabling) { + depctl.d32 = 0; + depctl.b.snak = 1; + depctl.b.epdis = 1; + dwc_modify_reg32(&dev_if->in_ep_regs[epnum]->diepctl, depctl.d32, depctl.d32); + } + CLEAR_IN_EP_INTR(core_if,epnum,inepnakeff); + + } + + /** IN EP Tx FIFO Empty Intr */ + if (diepint.b.emptyintr) { + DWC_DEBUGPL(DBG_ANY,"EP%d Tx FIFO Empty Intr \n", epnum); + write_empty_tx_fifo(pcd, epnum); + + CLEAR_IN_EP_INTR(core_if,epnum,emptyintr); + } + + /** IN EP BNA Intr */ + if (diepint.b.bna) { + CLEAR_IN_EP_INTR(core_if,epnum,bna); + if(core_if->dma_desc_enable) { +#ifdef DWC_EN_ISOC + if(dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + /* + * This checking is performed to prevent first "false" BNA + * handling occuring right after reconnect + */ + if(dwc_ep->next_frame != 0xffffffff) + dwc_otg_pcd_handle_iso_bna(ep); + } + else +#endif //DWC_EN_ISOC + { + dctl.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dctl); + + /* If Global Continue on BNA is disabled - disable EP */ + if(!dctl.b.gcontbna) { + depctl.d32 = 0; + depctl.b.snak = 1; + depctl.b.epdis = 1; + dwc_modify_reg32(&dev_if->in_ep_regs[epnum]->diepctl, depctl.d32, depctl.d32); + } else { + start_next_request(ep); + } + } + } + } + /* NAK Interrutp */ + if (diepint.b.nak) { + DWC_DEBUGPL(DBG_ANY,"EP%d IN NAK Interrupt\n", epnum); + handle_in_ep_nak_intr(pcd, epnum); + + CLEAR_IN_EP_INTR(core_if,epnum,nak); + } + } + epnum++; + ep_intr >>=1; + } + + return 1; +#undef CLEAR_IN_EP_INTR +} + +/** + * This interrupt indicates that an OUT EP has a pending Interrupt. + * The sequence for handling the OUT EP interrupt is shown below: + * -# Read the Device All Endpoint Interrupt register + * -# Repeat the following for each OUT EP interrupt bit set (from + * LSB to MSB). + * -# Read the Device Endpoint Interrupt (DOEPINTn) register + * -# If "Transfer Complete" call the request complete function + * -# If "Endpoint Disabled" complete the EP disable procedure. + * -# If "AHB Error Interrupt" log error + * -# If "Setup Phase Done" process Setup Packet (See Standard USB + * Command Processing) + */ +static int32_t dwc_otg_pcd_handle_out_ep_intr(dwc_otg_pcd_t *pcd) +{ +#define CLEAR_OUT_EP_INTR(__core_if,__epnum,__intr) \ +do { \ + doepint_data_t doepint = {.d32=0}; \ + doepint.b.__intr = 1; \ + dwc_write_reg32(&__core_if->dev_if->out_ep_regs[__epnum]->doepint, \ + doepint.d32); \ +} while (0) + + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + uint32_t ep_intr; + doepint_data_t doepint = {.d32=0}; + dctl_data_t dctl = {.d32=0}; + depctl_data_t doepctl = {.d32=0}; + uint32_t epnum = 0; + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + + DWC_DEBUGPL(DBG_PCDV, "%s()\n", __func__); + + /* Read in the device interrupt bits */ + ep_intr = dwc_otg_read_dev_all_out_ep_intr(core_if); + + while(ep_intr) { + if (ep_intr&0x1) { + /* Get EP pointer */ + ep = get_out_ep(pcd, epnum); + dwc_ep = &ep->dwc_ep; + +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV, + "EP%d-%s: type=%d, mps=%d\n", + dwc_ep->num, (dwc_ep->is_in ?"IN":"OUT"), + dwc_ep->type, dwc_ep->maxpacket); +#endif + doepint.d32 = dwc_otg_read_dev_out_ep_intr(core_if, dwc_ep); + + /* Transfer complete */ + if (doepint.b.xfercompl) { + if (epnum == 0) { + /* Clear the bit in DOEPINTn for this interrupt */ + CLEAR_OUT_EP_INTR(core_if,epnum,xfercompl); + if(core_if->dma_desc_enable == 0 || pcd->ep0state != EP0_IDLE) + handle_ep0(pcd); +#ifdef DWC_EN_ISOC + } else if(dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + if (doepint.b.pktdrpsts == 0) { + /* Clear the bit in DOEPINTn for this interrupt */ + CLEAR_OUT_EP_INTR(core_if,epnum,xfercompl); + complete_iso_ep(ep); + } else { + doepint_data_t doepint = {.d32=0}; + doepint.b.xfercompl = 1; + doepint.b.pktdrpsts = 1; + dwc_write_reg32(&core_if->dev_if->out_ep_regs[epnum]->doepint, + doepint.d32); + if(handle_iso_out_pkt_dropped(core_if,dwc_ep)) { + complete_iso_ep(ep); + } + } +#endif //DWC_EN_ISOC + } else { + /* Clear the bit in DOEPINTn for this interrupt */ + CLEAR_OUT_EP_INTR(core_if,epnum,xfercompl); + complete_ep(ep); + } + + } + + /* Endpoint disable */ + if (doepint.b.epdisabled) { + /* Clear the bit in DOEPINTn for this interrupt */ + CLEAR_OUT_EP_INTR(core_if,epnum,epdisabled); + } + /* AHB Error */ + if (doepint.b.ahberr) { + DWC_DEBUGPL(DBG_PCD,"EP%d OUT AHB Error\n", epnum); + DWC_DEBUGPL(DBG_PCD,"EP DMA REG %d \n", core_if->dev_if->out_ep_regs[epnum]->doepdma); + CLEAR_OUT_EP_INTR(core_if,epnum,ahberr); + } + /* Setup Phase Done (contorl EPs) */ + if (doepint.b.setup) { +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD,"EP%d SETUP Done\n", + epnum); +#endif + CLEAR_OUT_EP_INTR(core_if,epnum,setup); + handle_ep0(pcd); + } + + /** OUT EP BNA Intr */ + if (doepint.b.bna) { + CLEAR_OUT_EP_INTR(core_if,epnum,bna); + if(core_if->dma_desc_enable) { +#ifdef DWC_EN_ISOC + if(dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + /* + * This checking is performed to prevent first "false" BNA + * handling occuring right after reconnect + */ + if(dwc_ep->next_frame != 0xffffffff) + dwc_otg_pcd_handle_iso_bna(ep); + } + else +#endif //DWC_EN_ISOC + { + dctl.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dctl); + + /* If Global Continue on BNA is disabled - disable EP*/ + if(!dctl.b.gcontbna) { + doepctl.d32 = 0; + doepctl.b.snak = 1; + doepctl.b.epdis = 1; + dwc_modify_reg32(&dev_if->out_ep_regs[epnum]->doepctl, doepctl.d32, doepctl.d32); + } else { + start_next_request(ep); + } + } + } + } + if (doepint.b.stsphsercvd) { + CLEAR_OUT_EP_INTR(core_if,epnum,stsphsercvd); + if(core_if->dma_desc_enable) { + do_setup_in_status_phase(pcd); + } + } + /* Babble Interrutp */ + if (doepint.b.babble) { + DWC_DEBUGPL(DBG_ANY,"EP%d OUT Babble\n", epnum); + handle_out_ep_babble_intr(pcd, epnum); + + CLEAR_OUT_EP_INTR(core_if,epnum,babble); + } + /* NAK Interrutp */ + if (doepint.b.nak) { + DWC_DEBUGPL(DBG_ANY,"EP%d OUT NAK\n", epnum); + handle_out_ep_nak_intr(pcd, epnum); + + CLEAR_OUT_EP_INTR(core_if,epnum,nak); + } + /* NYET Interrutp */ + if (doepint.b.nyet) { + DWC_DEBUGPL(DBG_ANY,"EP%d OUT NYET\n", epnum); + handle_out_ep_nyet_intr(pcd, epnum); + + CLEAR_OUT_EP_INTR(core_if,epnum,nyet); + } + } + + epnum++; + ep_intr >>=1; + } + + return 1; + +#undef CLEAR_OUT_EP_INTR +} + + +/** + * Incomplete ISO IN Transfer Interrupt. + * This interrupt indicates one of the following conditions occurred + * while transmitting an ISOC transaction. + * - Corrupted IN Token for ISOC EP. + * - Packet not complete in FIFO. + * The follow actions will be taken: + * -# Determine the EP + * -# Set incomplete flag in dwc_ep structure + * -# Disable EP; when "Endpoint Disabled" interrupt is received + * Flush FIFO + */ +int32_t dwc_otg_pcd_handle_incomplete_isoc_in_intr(dwc_otg_pcd_t *pcd) +{ + gintsts_data_t gintsts; + + +#ifdef DWC_EN_ISOC + dwc_otg_dev_if_t *dev_if; + deptsiz_data_t deptsiz = { .d32 = 0}; + depctl_data_t depctl = { .d32 = 0}; + dsts_data_t dsts = { .d32 = 0}; + dwc_ep_t *dwc_ep; + int i; + + dev_if = GET_CORE_IF(pcd)->dev_if; + + for(i = 1; i <= dev_if->num_in_eps; ++i) { + dwc_ep = &pcd->in_ep[i].dwc_ep; + if(dwc_ep->active && + dwc_ep->type == USB_ENDPOINT_XFER_ISOC) + { + deptsiz.d32 = dwc_read_reg32(&dev_if->in_ep_regs[i]->dieptsiz); + depctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[i]->diepctl); + + if(depctl.b.epdis && deptsiz.d32) { + set_current_pkt_info(GET_CORE_IF(pcd), dwc_ep); + if(dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { + dwc_ep->cur_pkt = 0; + dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; + + if(dwc_ep->proc_buf_num) { + dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff1; + dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr1; + } else { + dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff0; + dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr0; + } + } + + dsts.d32 = dwc_read_reg32(&GET_CORE_IF(pcd)->dev_if->dev_global_regs->dsts); + dwc_ep->next_frame = dsts.b.soffn; + + dwc_otg_iso_ep_start_frm_transfer(GET_CORE_IF(pcd), dwc_ep); + } + } + } + +#else + gintmsk_data_t intr_mask = { .d32 = 0}; + DWC_PRINT("INTERRUPT Handler not implemented for %s\n", + "IN ISOC Incomplete"); + + intr_mask.b.incomplisoin = 1; + dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); +#endif //DWC_EN_ISOC + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.incomplisoin = 1; + dwc_write_reg32 (&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + +/** + * Incomplete ISO OUT Transfer Interrupt. + * + * This interrupt indicates that the core has dropped an ISO OUT + * packet. The following conditions can be the cause: + * - FIFO Full, the entire packet would not fit in the FIFO. + * - CRC Error + * - Corrupted Token + * The follow actions will be taken: + * -# Determine the EP + * -# Set incomplete flag in dwc_ep structure + * -# Read any data from the FIFO + * -# Disable EP. when "Endpoint Disabled" interrupt is received + * re-enable EP. + */ +int32_t dwc_otg_pcd_handle_incomplete_isoc_out_intr(dwc_otg_pcd_t *pcd) +{ + /* @todo implement ISR */ + gintsts_data_t gintsts; + +#ifdef DWC_EN_ISOC + dwc_otg_dev_if_t *dev_if; + deptsiz_data_t deptsiz = { .d32 = 0}; + depctl_data_t depctl = { .d32 = 0}; + dsts_data_t dsts = { .d32 = 0}; + dwc_ep_t *dwc_ep; + int i; + + dev_if = GET_CORE_IF(pcd)->dev_if; + + for(i = 1; i <= dev_if->num_out_eps; ++i) { + dwc_ep = &pcd->in_ep[i].dwc_ep; + if(pcd->out_ep[i].dwc_ep.active && + pcd->out_ep[i].dwc_ep.type == USB_ENDPOINT_XFER_ISOC) + { + deptsiz.d32 = dwc_read_reg32(&dev_if->out_ep_regs[i]->doeptsiz); + depctl.d32 = dwc_read_reg32(&dev_if->out_ep_regs[i]->doepctl); + + if(depctl.b.epdis && deptsiz.d32) { + set_current_pkt_info(GET_CORE_IF(pcd), &pcd->out_ep[i].dwc_ep); + if(dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { + dwc_ep->cur_pkt = 0; + dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; + + if(dwc_ep->proc_buf_num) { + dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff1; + dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr1; + } else { + dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff0; + dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr0; + } + } + + dsts.d32 = dwc_read_reg32(&GET_CORE_IF(pcd)->dev_if->dev_global_regs->dsts); + dwc_ep->next_frame = dsts.b.soffn; + + dwc_otg_iso_ep_start_frm_transfer(GET_CORE_IF(pcd), dwc_ep); + } + } + } +#else + /** @todo implement ISR */ + gintmsk_data_t intr_mask = { .d32 = 0}; + + DWC_PRINT("INTERRUPT Handler not implemented for %s\n", + "OUT ISOC Incomplete"); + + intr_mask.b.incomplisoout = 1; + dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + +#endif // DWC_EN_ISOC + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.incomplisoout = 1; + dwc_write_reg32 (&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + +/** + * This function handles the Global IN NAK Effective interrupt. + * + */ +int32_t dwc_otg_pcd_handle_in_nak_effective(dwc_otg_pcd_t *pcd) +{ + dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if; + depctl_data_t diepctl = { .d32 = 0}; + depctl_data_t diepctl_rd = { .d32 = 0}; + gintmsk_data_t intr_mask = { .d32 = 0}; + gintsts_data_t gintsts; + int i; + + DWC_DEBUGPL(DBG_PCD, "Global IN NAK Effective\n"); + + /* Disable all active IN EPs */ + diepctl.b.epdis = 1; + diepctl.b.snak = 1; + + for (i=0; i <= dev_if->num_in_eps; i++) + { + diepctl_rd.d32 = dwc_read_reg32(&dev_if->in_ep_regs[i]->diepctl); + if (diepctl_rd.b.epena) { + dwc_write_reg32(&dev_if->in_ep_regs[i]->diepctl, + diepctl.d32); + } + } + /* Disable the Global IN NAK Effective Interrupt */ + intr_mask.b.ginnakeff = 1; + dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.ginnakeff = 1; + dwc_write_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + +/** + * OUT NAK Effective. + * + */ +int32_t dwc_otg_pcd_handle_out_nak_effective(dwc_otg_pcd_t *pcd) +{ + gintmsk_data_t intr_mask = { .d32 = 0}; + gintsts_data_t gintsts; + + DWC_PRINT("INTERRUPT Handler not implemented for %s\n", + "Global IN NAK Effective\n"); + /* Disable the Global IN NAK Effective Interrupt */ + intr_mask.b.goutnakeff = 1; + dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.goutnakeff = 1; + dwc_write_reg32 (&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + + +/** + * PCD interrupt handler. + * + * The PCD handles the device interrupts. Many conditions can cause a + * device interrupt. When an interrupt occurs, the device interrupt + * service routine determines the cause of the interrupt and + * dispatches handling to the appropriate function. These interrupt + * handling functions are described below. + * + * All interrupt registers are processed from LSB to MSB. + * + */ +int32_t dwc_otg_pcd_handle_intr(dwc_otg_pcd_t *pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); +#ifdef VERBOSE + dwc_otg_core_global_regs_t *global_regs = + core_if->core_global_regs; +#endif + gintsts_data_t gintr_status; + int32_t retval = 0; + + +#ifdef VERBOSE + DWC_DEBUGPL(DBG_ANY, "%s() gintsts=%08x gintmsk=%08x\n", + __func__, + dwc_read_reg32(&global_regs->gintsts), + dwc_read_reg32(&global_regs->gintmsk)); +#endif + + if (dwc_otg_is_device_mode(core_if)) { + SPIN_LOCK(&pcd->lock); +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV, "%s() gintsts=%08x gintmsk=%08x\n", + __func__, + dwc_read_reg32(&global_regs->gintsts), + dwc_read_reg32(&global_regs->gintmsk)); +#endif + + gintr_status.d32 = dwc_otg_read_core_intr(core_if); +/* + if (!gintr_status.d32) { + SPIN_UNLOCK(&pcd->lock); + return 0; + } +*/ + DWC_DEBUGPL(DBG_PCDV, "%s: gintsts&gintmsk=%08x\n", + __func__, gintr_status.d32); + + if (gintr_status.b.sofintr) { + retval |= dwc_otg_pcd_handle_sof_intr(pcd); + } + if (gintr_status.b.rxstsqlvl) { + retval |= dwc_otg_pcd_handle_rx_status_q_level_intr(pcd); + } + if (gintr_status.b.nptxfempty) { + retval |= dwc_otg_pcd_handle_np_tx_fifo_empty_intr(pcd); + } + if (gintr_status.b.ginnakeff) { + retval |= dwc_otg_pcd_handle_in_nak_effective(pcd); + } + if (gintr_status.b.goutnakeff) { + retval |= dwc_otg_pcd_handle_out_nak_effective(pcd); + } + if (gintr_status.b.i2cintr) { + retval |= dwc_otg_pcd_handle_i2c_intr(pcd); + } + if (gintr_status.b.erlysuspend) { + retval |= dwc_otg_pcd_handle_early_suspend_intr(pcd); + } + if (gintr_status.b.usbreset) { + retval |= dwc_otg_pcd_handle_usb_reset_intr(pcd); + } + if (gintr_status.b.enumdone) { + retval |= dwc_otg_pcd_handle_enum_done_intr(pcd); + } + if (gintr_status.b.isooutdrop) { + retval |= dwc_otg_pcd_handle_isoc_out_packet_dropped_intr(pcd); + } + if (gintr_status.b.eopframe) { + retval |= dwc_otg_pcd_handle_end_periodic_frame_intr(pcd); + } + if (gintr_status.b.epmismatch) { + retval |= dwc_otg_pcd_handle_ep_mismatch_intr(core_if); + } + if (gintr_status.b.inepint) { + if(!core_if->multiproc_int_enable) { + retval |= dwc_otg_pcd_handle_in_ep_intr(pcd); + } + } + if (gintr_status.b.outepintr) { + if(!core_if->multiproc_int_enable) { + retval |= dwc_otg_pcd_handle_out_ep_intr(pcd); + } + } + if (gintr_status.b.incomplisoin) { + retval |= dwc_otg_pcd_handle_incomplete_isoc_in_intr(pcd); + } + if (gintr_status.b.incomplisoout) { + retval |= dwc_otg_pcd_handle_incomplete_isoc_out_intr(pcd); + } + + /* In MPI mode De vice Endpoints intterrupts are asserted + * without setting outepintr and inepint bits set, so these + * Interrupt handlers are called without checking these bit-fields + */ + if(core_if->multiproc_int_enable) { + retval |= dwc_otg_pcd_handle_in_ep_intr(pcd); + retval |= dwc_otg_pcd_handle_out_ep_intr(pcd); + } +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV, "%s() gintsts=%0x\n", __func__, + dwc_read_reg32(&global_regs->gintsts)); +#endif + SPIN_UNLOCK(&pcd->lock); + } + S3C2410X_CLEAR_EINTPEND(); + + return retval; +} + +#endif /* DWC_HOST_ONLY */ diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_plat.h b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_plat.h new file mode 100644 index 0000000000..1744a1fbc8 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_plat.h @@ -0,0 +1,266 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/platform/dwc_otg_plat.h $ + * $Revision: #23 $ + * $Date: 2008/07/15 $ + * $Change: 1064915 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#if !defined(__DWC_OTG_PLAT_H__) +#define __DWC_OTG_PLAT_H__ + +#include <linux/types.h> +#include <linux/slab.h> +#include <linux/list.h> +#include <linux/delay.h> +#include <asm/io.h> + +/* Changed all readl and writel to __raw_readl, __raw_writel */ + +/** + * @file + * + * This file contains the Platform Specific constants, interfaces + * (functions and macros) for Linux. + * + */ +//#if !defined(__LINUX_ARM_ARCH__) +//#error "The contents of this file is Linux specific!!!" +//#endif + +/** + * Reads the content of a register. + * + * @param reg address of register to read. + * @return contents of the register. + * + + * Usage:<br> + * <code>uint32_t dev_ctl = dwc_read_reg32(&dev_regs->dctl);</code> + */ +static __inline__ uint32_t dwc_read_reg32( volatile uint32_t *reg) +{ + return __raw_readl(reg); + // return readl(reg); +}; + +/** + * Writes a register with a 32 bit value. + * + * @param reg address of register to read. + * @param value to write to _reg. + * + * Usage:<br> + * <code>dwc_write_reg32(&dev_regs->dctl, 0); </code> + */ +static __inline__ void dwc_write_reg32( volatile uint32_t *reg, const uint32_t value) +{ + // writel( value, reg ); + __raw_writel(value, reg); + +}; + +/** + * This function modifies bit values in a register. Using the + * algorithm: (reg_contents & ~clear_mask) | set_mask. + * + * @param reg address of register to read. + * @param clear_mask bit mask to be cleared. + * @param set_mask bit mask to be set. + * + * Usage:<br> + * <code> // Clear the SOF Interrupt Mask bit and <br> + * // set the OTG Interrupt mask bit, leaving all others as they were. + * dwc_modify_reg32(&dev_regs->gintmsk, DWC_SOF_INT, DWC_OTG_INT);</code> + */ +static __inline__ + void dwc_modify_reg32( volatile uint32_t *reg, const uint32_t clear_mask, const uint32_t set_mask) +{ + // writel( (readl(reg) & ~clear_mask) | set_mask, reg ); + __raw_writel( (__raw_readl(reg) & ~clear_mask) | set_mask, reg ); +}; + + +/** + * Wrapper for the OS micro-second delay function. + * @param[in] usecs Microseconds of delay + */ +static __inline__ void UDELAY( const uint32_t usecs ) +{ + udelay( usecs ); +} + +/** + * Wrapper for the OS milli-second delay function. + * @param[in] msecs milliseconds of delay + */ +static __inline__ void MDELAY( const uint32_t msecs ) +{ + mdelay( msecs ); +} + +/** + * Wrapper for the Linux spin_lock. On the ARM (Integrator) + * spin_lock() is a nop. + * + * @param lock Pointer to the spinlock. + */ +static __inline__ void SPIN_LOCK( spinlock_t *lock ) +{ + spin_lock(lock); +} + +/** + * Wrapper for the Linux spin_unlock. On the ARM (Integrator) + * spin_lock() is a nop. + * + * @param lock Pointer to the spinlock. + */ +static __inline__ void SPIN_UNLOCK( spinlock_t *lock ) +{ + spin_unlock(lock); +} + +/** + * Wrapper (macro) for the Linux spin_lock_irqsave. On the ARM + * (Integrator) spin_lock() is a nop. + * + * @param l Pointer to the spinlock. + * @param f unsigned long for irq flags storage. + */ +#define SPIN_LOCK_IRQSAVE( l, f ) spin_lock_irqsave(l,f); + +/** + * Wrapper (macro) for the Linux spin_unlock_irqrestore. On the ARM + * (Integrator) spin_lock() is a nop. + * + * @param l Pointer to the spinlock. + * @param f unsigned long for irq flags storage. + */ +#define SPIN_UNLOCK_IRQRESTORE( l,f ) spin_unlock_irqrestore(l,f); + +/* + * Debugging support vanishes in non-debug builds. + */ + + +/** + * The Debug Level bit-mask variable. + */ +extern uint32_t g_dbg_lvl; +/** + * Set the Debug Level variable. + */ +static inline uint32_t SET_DEBUG_LEVEL( const uint32_t new ) +{ + uint32_t old = g_dbg_lvl; + g_dbg_lvl = new; + return old; +} + +/** When debug level has the DBG_CIL bit set, display CIL Debug messages. */ +#define DBG_CIL (0x2) +/** When debug level has the DBG_CILV bit set, display CIL Verbose debug + * messages */ +#define DBG_CILV (0x20) +/** When debug level has the DBG_PCD bit set, display PCD (Device) debug + * messages */ +#define DBG_PCD (0x4) +/** When debug level has the DBG_PCDV set, display PCD (Device) Verbose debug + * messages */ +#define DBG_PCDV (0x40) +/** When debug level has the DBG_HCD bit set, display Host debug messages */ +#define DBG_HCD (0x8) +/** When debug level has the DBG_HCDV bit set, display Verbose Host debug + * messages */ +#define DBG_HCDV (0x80) +/** When debug level has the DBG_HCD_URB bit set, display enqueued URBs in host + * mode. */ +#define DBG_HCD_URB (0x800) + +/** When debug level has any bit set, display debug messages */ +#define DBG_ANY (0xFF) + +/** All debug messages off */ +#define DBG_OFF 0 + +/** Prefix string for DWC_DEBUG print macros. */ +#define USB_DWC "DWC_otg: " + +/** + * Print a debug message when the Global debug level variable contains + * the bit defined in <code>lvl</code>. + * + * @param[in] lvl - Debug level, use one of the DBG_ constants above. + * @param[in] x - like printf + * + * Example:<p> + * <code> + * DWC_DEBUGPL( DBG_ANY, "%s(%p)\n", __func__, _reg_base_addr); + * </code> + * <br> + * results in:<br> + * <code> + * usb-DWC_otg: dwc_otg_cil_init(ca867000) + * </code> + */ +#ifdef DEBUG + +# define DWC_DEBUGPL(lvl, x...) do{ if ((lvl)&g_dbg_lvl)printk( KERN_DEBUG USB_DWC x ); }while(0) +# define DWC_DEBUGP(x...) DWC_DEBUGPL(DBG_ANY, x ) + +# define CHK_DEBUG_LEVEL(level) ((level) & g_dbg_lvl) + +#else + +# define DWC_DEBUGPL(lvl, x...) do{}while(0) +# define DWC_DEBUGP(x...) + +# define CHK_DEBUG_LEVEL(level) (0) + +#endif /*DEBUG*/ + +/** + * Print an Error message. + */ +#define DWC_ERROR(x...) printk( KERN_ERR USB_DWC x ) +/** + * Print a Warning message. + */ +#define DWC_WARN(x...) printk( KERN_WARNING USB_DWC x ) +/** + * Print a notice (normal but significant message). + */ +#define DWC_NOTICE(x...) printk( KERN_NOTICE USB_DWC x ) +/** + * Basic message printing. + */ +#define DWC_PRINT(x...) printk( KERN_INFO USB_DWC x ) + +#endif + diff --git a/target/linux/cns3xxx/files/drivers/usb/dwc/otg_regs.h b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_regs.h new file mode 100644 index 0000000000..3c3ace6632 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/usb/dwc/otg_regs.h @@ -0,0 +1,2059 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_regs.h $ + * $Revision: #72 $ + * $Date: 2008/09/19 $ + * $Change: 1099526 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#ifndef __DWC_OTG_REGS_H__ +#define __DWC_OTG_REGS_H__ + +/** + * @file + * + * This file contains the data structures for accessing the DWC_otg core registers. + * + * The application interfaces with the HS OTG core by reading from and + * writing to the Control and Status Register (CSR) space through the + * AHB Slave interface. These registers are 32 bits wide, and the + * addresses are 32-bit-block aligned. + * CSRs are classified as follows: + * - Core Global Registers + * - Device Mode Registers + * - Device Global Registers + * - Device Endpoint Specific Registers + * - Host Mode Registers + * - Host Global Registers + * - Host Port CSRs + * - Host Channel Specific Registers + * + * Only the Core Global registers can be accessed in both Device and + * Host modes. When the HS OTG core is operating in one mode, either + * Device or Host, the application must not access registers from the + * other mode. When the core switches from one mode to another, the + * registers in the new mode of operation must be reprogrammed as they + * would be after a power-on reset. + */ + +/** Maximum number of Periodic FIFOs */ +#define MAX_PERIO_FIFOS 15 +/** Maximum number of Transmit FIFOs */ +#define MAX_TX_FIFOS 15 + +/** Maximum number of Endpoints/HostChannels */ +#define MAX_EPS_CHANNELS 16 + +/****************************************************************************/ +/** DWC_otg Core registers . + * The dwc_otg_core_global_regs structure defines the size + * and relative field offsets for the Core Global registers. + */ +typedef struct dwc_otg_core_global_regs +{ + /** OTG Control and Status Register. <i>Offset: 000h</i> */ + volatile uint32_t gotgctl; + /** OTG Interrupt Register. <i>Offset: 004h</i> */ + volatile uint32_t gotgint; + /**Core AHB Configuration Register. <i>Offset: 008h</i> */ + volatile uint32_t gahbcfg; + +#define DWC_GLBINTRMASK 0x0001 +#define DWC_DMAENABLE 0x0020 +#define DWC_NPTXEMPTYLVL_EMPTY 0x0080 +#define DWC_NPTXEMPTYLVL_HALFEMPTY 0x0000 +#define DWC_PTXEMPTYLVL_EMPTY 0x0100 +#define DWC_PTXEMPTYLVL_HALFEMPTY 0x0000 + + /**Core USB Configuration Register. <i>Offset: 00Ch</i> */ + volatile uint32_t gusbcfg; + /**Core Reset Register. <i>Offset: 010h</i> */ + volatile uint32_t grstctl; + /**Core Interrupt Register. <i>Offset: 014h</i> */ + volatile uint32_t gintsts; + /**Core Interrupt Mask Register. <i>Offset: 018h</i> */ + volatile uint32_t gintmsk; + /**Receive Status Queue Read Register (Read Only). <i>Offset: 01Ch</i> */ + volatile uint32_t grxstsr; + /**Receive Status Queue Read & POP Register (Read Only). <i>Offset: 020h</i>*/ + volatile uint32_t grxstsp; + /**Receive FIFO Size Register. <i>Offset: 024h</i> */ + volatile uint32_t grxfsiz; + /**Non Periodic Transmit FIFO Size Register. <i>Offset: 028h</i> */ + volatile uint32_t gnptxfsiz; + /**Non Periodic Transmit FIFO/Queue Status Register (Read + * Only). <i>Offset: 02Ch</i> */ + volatile uint32_t gnptxsts; + /**I2C Access Register. <i>Offset: 030h</i> */ + volatile uint32_t gi2cctl; + /**PHY Vendor Control Register. <i>Offset: 034h</i> */ + volatile uint32_t gpvndctl; + /**General Purpose Input/Output Register. <i>Offset: 038h</i> */ + volatile uint32_t ggpio; + /**User ID Register. <i>Offset: 03Ch</i> */ + volatile uint32_t guid; + /**Synopsys ID Register (Read Only). <i>Offset: 040h</i> */ + volatile uint32_t gsnpsid; + /**User HW Config1 Register (Read Only). <i>Offset: 044h</i> */ + volatile uint32_t ghwcfg1; + /**User HW Config2 Register (Read Only). <i>Offset: 048h</i> */ + volatile uint32_t ghwcfg2; +#define DWC_SLAVE_ONLY_ARCH 0 +#define DWC_EXT_DMA_ARCH 1 +#define DWC_INT_DMA_ARCH 2 + +#define DWC_MODE_HNP_SRP_CAPABLE 0 +#define DWC_MODE_SRP_ONLY_CAPABLE 1 +#define DWC_MODE_NO_HNP_SRP_CAPABLE 2 +#define DWC_MODE_SRP_CAPABLE_DEVICE 3 +#define DWC_MODE_NO_SRP_CAPABLE_DEVICE 4 +#define DWC_MODE_SRP_CAPABLE_HOST 5 +#define DWC_MODE_NO_SRP_CAPABLE_HOST 6 + + /**User HW Config3 Register (Read Only). <i>Offset: 04Ch</i> */ + volatile uint32_t ghwcfg3; + /**User HW Config4 Register (Read Only). <i>Offset: 050h</i>*/ + volatile uint32_t ghwcfg4; + /** Reserved <i>Offset: 054h-0FFh</i> */ + volatile uint32_t reserved[43]; + /** Host Periodic Transmit FIFO Size Register. <i>Offset: 100h</i> */ + volatile uint32_t hptxfsiz; + /** Device Periodic Transmit FIFO#n Register if dedicated fifos are disabled, + otherwise Device Transmit FIFO#n Register. + * <i>Offset: 104h + (FIFO_Number-1)*04h, 1 <= FIFO Number <= 15 (1<=n<=15).</i> */ + volatile uint32_t dptxfsiz_dieptxf[15]; +} dwc_otg_core_global_regs_t; + +/** + * This union represents the bit fields of the Core OTG Control + * and Status Register (GOTGCTL). Set the bits using the bit + * fields then write the <i>d32</i> value to the register. + */ +typedef union gotgctl_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned sesreqscs : 1; + unsigned sesreq : 1; + unsigned reserved2_7 : 6; + unsigned hstnegscs : 1; + unsigned hnpreq : 1; + unsigned hstsethnpen : 1; + unsigned devhnpen : 1; + unsigned reserved12_15 : 4; + unsigned conidsts : 1; + unsigned reserved17 : 1; + unsigned asesvld : 1; + unsigned bsesvld : 1; + unsigned currmod : 1; + unsigned reserved21_31 : 11; + } b; +} gotgctl_data_t; + +/** + * This union represents the bit fields of the Core OTG Interrupt Register + * (GOTGINT). Set/clear the bits using the bit fields then write the <i>d32</i> + * value to the register. + */ +typedef union gotgint_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** Current Mode */ + unsigned reserved0_1 : 2; + + /** Session End Detected */ + unsigned sesenddet : 1; + + unsigned reserved3_7 : 5; + + /** Session Request Success Status Change */ + unsigned sesreqsucstschng : 1; + /** Host Negotiation Success Status Change */ + unsigned hstnegsucstschng : 1; + + unsigned reserver10_16 : 7; + + /** Host Negotiation Detected */ + unsigned hstnegdet : 1; + /** A-Device Timeout Change */ + unsigned adevtoutchng : 1; + /** Debounce Done */ + unsigned debdone : 1; + + unsigned reserved31_20 : 12; + + } b; +} gotgint_data_t; + + +/** + * This union represents the bit fields of the Core AHB Configuration + * Register (GAHBCFG). Set/clear the bits using the bit fields then + * write the <i>d32</i> value to the register. + */ +typedef union gahbcfg_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned glblintrmsk : 1; +#define DWC_GAHBCFG_GLBINT_ENABLE 1 + + unsigned hburstlen : 4; +#define DWC_GAHBCFG_INT_DMA_BURST_SINGLE 0 +#define DWC_GAHBCFG_INT_DMA_BURST_INCR 1 +#define DWC_GAHBCFG_INT_DMA_BURST_INCR4 3 +#define DWC_GAHBCFG_INT_DMA_BURST_INCR8 5 +#define DWC_GAHBCFG_INT_DMA_BURST_INCR16 7 + + unsigned dmaenable : 1; +#define DWC_GAHBCFG_DMAENABLE 1 + unsigned reserved : 1; + unsigned nptxfemplvl_txfemplvl : 1; + unsigned ptxfemplvl : 1; +#define DWC_GAHBCFG_TXFEMPTYLVL_EMPTY 1 +#define DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY 0 + unsigned reserved9_31 : 23; + } b; +} gahbcfg_data_t; + +/** + * This union represents the bit fields of the Core USB Configuration + * Register (GUSBCFG). Set the bits using the bit fields then write + * the <i>d32</i> value to the register. + */ +typedef union gusbcfg_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned toutcal : 3; + unsigned phyif : 1; + unsigned ulpi_utmi_sel : 1; + unsigned fsintf : 1; + unsigned physel : 1; + unsigned ddrsel : 1; + unsigned srpcap : 1; + unsigned hnpcap : 1; + unsigned usbtrdtim : 4; + unsigned nptxfrwnden : 1; + unsigned phylpwrclksel : 1; + unsigned otgutmifssel : 1; + unsigned ulpi_fsls : 1; + unsigned ulpi_auto_res : 1; + unsigned ulpi_clk_sus_m : 1; + unsigned ulpi_ext_vbus_drv : 1; + unsigned ulpi_int_vbus_indicator : 1; + unsigned term_sel_dl_pulse : 1; + unsigned reserved23_27 : 5; + unsigned tx_end_delay : 1; + unsigned reserved29_31 : 3; + } b; +} gusbcfg_data_t; + +/** + * This union represents the bit fields of the Core Reset Register + * (GRSTCTL). Set/clear the bits using the bit fields then write the + * <i>d32</i> value to the register. + */ +typedef union grstctl_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** Core Soft Reset (CSftRst) (Device and Host) + * + * The application can flush the control logic in the + * entire core using this bit. This bit resets the + * pipelines in the AHB Clock domain as well as the + * PHY Clock domain. + * + * The state machines are reset to an IDLE state, the + * control bits in the CSRs are cleared, all the + * transmit FIFOs and the receive FIFO are flushed. + * + * The status mask bits that control the generation of + * the interrupt, are cleared, to clear the + * interrupt. The interrupt status bits are not + * cleared, so the application can get the status of + * any events that occurred in the core after it has + * set this bit. + * + * Any transactions on the AHB are terminated as soon + * as possible following the protocol. Any + * transactions on the USB are terminated immediately. + * + * The configuration settings in the CSRs are + * unchanged, so the software doesn't have to + * reprogram these registers (Device + * Configuration/Host Configuration/Core System + * Configuration/Core PHY Configuration). + * + * The application can write to this bit, any time it + * wants to reset the core. This is a self clearing + * bit and the core clears this bit after all the + * necessary logic is reset in the core, which may + * take several clocks, depending on the current state + * of the core. + */ + unsigned csftrst : 1; + /** Hclk Soft Reset + * + * The application uses this bit to reset the control logic in + * the AHB clock domain. Only AHB clock domain pipelines are + * reset. + */ + unsigned hsftrst : 1; + /** Host Frame Counter Reset (Host Only)<br> + * + * The application can reset the (micro)frame number + * counter inside the core, using this bit. When the + * (micro)frame counter is reset, the subsequent SOF + * sent out by the core, will have a (micro)frame + * number of 0. + */ + unsigned hstfrm : 1; + /** In Token Sequence Learning Queue Flush + * (INTknQFlsh) (Device Only) + */ + unsigned intknqflsh : 1; + /** RxFIFO Flush (RxFFlsh) (Device and Host) + * + * The application can flush the entire Receive FIFO + * using this bit. <p>The application must first + * ensure that the core is not in the middle of a + * transaction. <p>The application should write into + * this bit, only after making sure that neither the + * DMA engine is reading from the RxFIFO nor the MAC + * is writing the data in to the FIFO. <p>The + * application should wait until the bit is cleared + * before performing any other operations. This bit + * will takes 8 clocks (slowest of PHY or AHB clock) + * to clear. + */ + unsigned rxfflsh : 1; + /** TxFIFO Flush (TxFFlsh) (Device and Host). + * + * This bit is used to selectively flush a single or + * all transmit FIFOs. The application must first + * ensure that the core is not in the middle of a + * transaction. <p>The application should write into + * this bit, only after making sure that neither the + * DMA engine is writing into the TxFIFO nor the MAC + * is reading the data out of the FIFO. <p>The + * application should wait until the core clears this + * bit, before performing any operations. This bit + * will takes 8 clocks (slowest of PHY or AHB clock) + * to clear. + */ + unsigned txfflsh : 1; + /** TxFIFO Number (TxFNum) (Device and Host). + * + * This is the FIFO number which needs to be flushed, + * using the TxFIFO Flush bit. This field should not + * be changed until the TxFIFO Flush bit is cleared by + * the core. + * - 0x0 : Non Periodic TxFIFO Flush + * - 0x1 : Periodic TxFIFO #1 Flush in device mode + * or Periodic TxFIFO in host mode + * - 0x2 : Periodic TxFIFO #2 Flush in device mode. + * - ... + * - 0xF : Periodic TxFIFO #15 Flush in device mode + * - 0x10: Flush all the Transmit NonPeriodic and + * Transmit Periodic FIFOs in the core + */ + unsigned txfnum : 5; + /** Reserved */ + unsigned reserved11_29 : 19; + /** DMA Request Signal. Indicated DMA request is in + * probress. Used for debug purpose. */ + unsigned dmareq : 1; + /** AHB Master Idle. Indicates the AHB Master State + * Machine is in IDLE condition. */ + unsigned ahbidle : 1; + } b; +} grstctl_t; + + +/** + * This union represents the bit fields of the Core Interrupt Mask + * Register (GINTMSK). Set/clear the bits using the bit fields then + * write the <i>d32</i> value to the register. + */ +typedef union gintmsk_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned reserved0 : 1; + unsigned modemismatch : 1; + unsigned otgintr : 1; + unsigned sofintr : 1; + unsigned rxstsqlvl : 1; + unsigned nptxfempty : 1; + unsigned ginnakeff : 1; + unsigned goutnakeff : 1; + unsigned reserved8 : 1; + unsigned i2cintr : 1; + unsigned erlysuspend : 1; + unsigned usbsuspend : 1; + unsigned usbreset : 1; + unsigned enumdone : 1; + unsigned isooutdrop : 1; + unsigned eopframe : 1; + unsigned reserved16 : 1; + unsigned epmismatch : 1; + unsigned inepintr : 1; + unsigned outepintr : 1; + unsigned incomplisoin : 1; + unsigned incomplisoout : 1; + unsigned reserved22_23 : 2; + unsigned portintr : 1; + unsigned hcintr : 1; + unsigned ptxfempty : 1; + unsigned reserved27 : 1; + unsigned conidstschng : 1; + unsigned disconnect : 1; + unsigned sessreqintr : 1; + unsigned wkupintr : 1; + } b; +} gintmsk_data_t; +/** + * This union represents the bit fields of the Core Interrupt Register + * (GINTSTS). Set/clear the bits using the bit fields then write the + * <i>d32</i> value to the register. + */ +typedef union gintsts_data +{ + /** raw register data */ + uint32_t d32; +#define DWC_SOF_INTR_MASK 0x0008 + /** register bits */ + struct + { +#define DWC_HOST_MODE 1 + unsigned curmode : 1; + unsigned modemismatch : 1; + unsigned otgintr : 1; + unsigned sofintr : 1; + unsigned rxstsqlvl : 1; + unsigned nptxfempty : 1; + unsigned ginnakeff : 1; + unsigned goutnakeff : 1; + unsigned reserved8 : 1; + unsigned i2cintr : 1; + unsigned erlysuspend : 1; + unsigned usbsuspend : 1; + unsigned usbreset : 1; + unsigned enumdone : 1; + unsigned isooutdrop : 1; + unsigned eopframe : 1; + unsigned intokenrx : 1; + unsigned epmismatch : 1; + unsigned inepint: 1; + unsigned outepintr : 1; + unsigned incomplisoin : 1; + unsigned incomplisoout : 1; + unsigned reserved22_23 : 2; + unsigned portintr : 1; + unsigned hcintr : 1; + unsigned ptxfempty : 1; + unsigned reserved27 : 1; + unsigned conidstschng : 1; + unsigned disconnect : 1; + unsigned sessreqintr : 1; + unsigned wkupintr : 1; + } b; +} gintsts_data_t; + + +/** + * This union represents the bit fields in the Device Receive Status Read and + * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the <i>d32</i> + * element then read out the bits using the <i>b</i>it elements. + */ +typedef union device_grxsts_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned epnum : 4; + unsigned bcnt : 11; + unsigned dpid : 2; +#define DWC_STS_DATA_UPDT 0x2 // OUT Data Packet +#define DWC_STS_XFER_COMP 0x3 // OUT Data Transfer Complete + +#define DWC_DSTS_GOUT_NAK 0x1 // Global OUT NAK +#define DWC_DSTS_SETUP_COMP 0x4 // Setup Phase Complete +#define DWC_DSTS_SETUP_UPDT 0x6 // SETUP Packet + unsigned pktsts : 4; + unsigned fn : 4; + unsigned reserved : 7; + } b; +} device_grxsts_data_t; + +/** + * This union represents the bit fields in the Host Receive Status Read and + * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the <i>d32</i> + * element then read out the bits using the <i>b</i>it elements. + */ +typedef union host_grxsts_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned chnum : 4; + unsigned bcnt : 11; + unsigned dpid : 2; + unsigned pktsts : 4; +#define DWC_GRXSTS_PKTSTS_IN 0x2 +#define DWC_GRXSTS_PKTSTS_IN_XFER_COMP 0x3 +#define DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR 0x5 +#define DWC_GRXSTS_PKTSTS_CH_HALTED 0x7 + unsigned reserved : 11; + } b; +} host_grxsts_data_t; + +/** + * This union represents the bit fields in the FIFO Size Registers (HPTXFSIZ, + * GNPTXFSIZ, DPTXFSIZn, DIEPTXFn). Read the register into the <i>d32</i> element then + * read out the bits using the <i>b</i>it elements. + */ +typedef union fifosize_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned startaddr : 16; + unsigned depth : 16; + } b; +} fifosize_data_t; + +/** + * This union represents the bit fields in the Non-Periodic Transmit + * FIFO/Queue Status Register (GNPTXSTS). Read the register into the + * <i>d32</i> element then read out the bits using the <i>b</i>it + * elements. + */ +typedef union gnptxsts_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned nptxfspcavail : 16; + unsigned nptxqspcavail : 8; + /** Top of the Non-Periodic Transmit Request Queue + * - bit 24 - Terminate (Last entry for the selected + * channel/EP) + * - bits 26:25 - Token Type + * - 2'b00 - IN/OUT + * - 2'b01 - Zero Length OUT + * - 2'b10 - PING/Complete Split + * - 2'b11 - Channel Halt + * - bits 30:27 - Channel/EP Number + */ + unsigned nptxqtop_terminate : 1; + unsigned nptxqtop_token : 2; + unsigned nptxqtop_chnep : 4; + unsigned reserved : 1; + } b; +} gnptxsts_data_t; + +/** + * This union represents the bit fields in the Transmit + * FIFO Status Register (DTXFSTS). Read the register into the + * <i>d32</i> element then read out the bits using the <i>b</i>it + * elements. + */ +typedef union dtxfsts_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned txfspcavail : 16; + unsigned reserved : 16; + } b; +} dtxfsts_data_t; + +/** + * This union represents the bit fields in the I2C Control Register + * (I2CCTL). Read the register into the <i>d32</i> element then read out the + * bits using the <i>b</i>it elements. + */ +typedef union gi2cctl_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned rwdata : 8; + unsigned regaddr : 8; + unsigned addr : 7; + unsigned i2cen : 1; + unsigned ack : 1; + unsigned i2csuspctl : 1; + unsigned i2cdevaddr : 2; + unsigned reserved : 2; + unsigned rw : 1; + unsigned bsydne : 1; + } b; +} gi2cctl_data_t; + +/** + * This union represents the bit fields in the User HW Config1 + * Register. Read the register into the <i>d32</i> element then read + * out the bits using the <i>b</i>it elements. + */ +typedef union hwcfg1_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned ep_dir0 : 2; + unsigned ep_dir1 : 2; + unsigned ep_dir2 : 2; + unsigned ep_dir3 : 2; + unsigned ep_dir4 : 2; + unsigned ep_dir5 : 2; + unsigned ep_dir6 : 2; + unsigned ep_dir7 : 2; + unsigned ep_dir8 : 2; + unsigned ep_dir9 : 2; + unsigned ep_dir10 : 2; + unsigned ep_dir11 : 2; + unsigned ep_dir12 : 2; + unsigned ep_dir13 : 2; + unsigned ep_dir14 : 2; + unsigned ep_dir15 : 2; + } b; +} hwcfg1_data_t; + +/** + * This union represents the bit fields in the User HW Config2 + * Register. Read the register into the <i>d32</i> element then read + * out the bits using the <i>b</i>it elements. + */ +typedef union hwcfg2_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /* GHWCFG2 */ + unsigned op_mode : 3; +#define DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG 0 +#define DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG 1 +#define DWC_HWCFG2_OP_MODE_NO_HNP_SRP_CAPABLE_OTG 2 +#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE 3 +#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_DEVICE 4 +#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST 5 +#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST 6 + + unsigned architecture : 2; + unsigned point2point : 1; + unsigned hs_phy_type : 2; +#define DWC_HWCFG2_HS_PHY_TYPE_NOT_SUPPORTED 0 +#define DWC_HWCFG2_HS_PHY_TYPE_UTMI 1 +#define DWC_HWCFG2_HS_PHY_TYPE_ULPI 2 +#define DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI 3 + + unsigned fs_phy_type : 2; + unsigned num_dev_ep : 4; + unsigned num_host_chan : 4; + unsigned perio_ep_supported : 1; + unsigned dynamic_fifo : 1; + unsigned multi_proc_int : 1; + unsigned reserved21 : 1; + unsigned nonperio_tx_q_depth : 2; + unsigned host_perio_tx_q_depth : 2; + unsigned dev_token_q_depth : 5; + unsigned reserved31 : 1; + } b; +} hwcfg2_data_t; + +/** + * This union represents the bit fields in the User HW Config3 + * Register. Read the register into the <i>d32</i> element then read + * out the bits using the <i>b</i>it elements. + */ +typedef union hwcfg3_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /* GHWCFG3 */ + unsigned xfer_size_cntr_width : 4; + unsigned packet_size_cntr_width : 3; + unsigned otg_func : 1; + unsigned i2c : 1; + unsigned vendor_ctrl_if : 1; + unsigned optional_features : 1; + unsigned synch_reset_type : 1; + unsigned ahb_phy_clock_synch : 1; + unsigned reserved15_13 : 3; + unsigned dfifo_depth : 16; + } b; +} hwcfg3_data_t; + +/** + * This union represents the bit fields in the User HW Config4 + * Register. Read the register into the <i>d32</i> element then read + * out the bits using the <i>b</i>it elements. + */ +typedef union hwcfg4_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned num_dev_perio_in_ep : 4; + unsigned power_optimiz : 1; + unsigned min_ahb_freq : 9; + unsigned utmi_phy_data_width : 2; + unsigned num_dev_mode_ctrl_ep : 4; + unsigned iddig_filt_en : 1; + unsigned vbus_valid_filt_en : 1; + unsigned a_valid_filt_en : 1; + unsigned b_valid_filt_en : 1; + unsigned session_end_filt_en : 1; + unsigned ded_fifo_en : 1; + unsigned num_in_eps : 4; + unsigned desc_dma : 1; + unsigned desc_dma_dyn : 1; + } b; +} hwcfg4_data_t; + +//////////////////////////////////////////// +// Device Registers +/** + * Device Global Registers. <i>Offsets 800h-BFFh</i> + * + * The following structures define the size and relative field offsets + * for the Device Mode Registers. + * + * <i>These registers are visible only in Device mode and must not be + * accessed in Host mode, as the results are unknown.</i> + */ +typedef struct dwc_otg_dev_global_regs +{ + /** Device Configuration Register. <i>Offset 800h</i> */ + volatile uint32_t dcfg; + /** Device Control Register. <i>Offset: 804h</i> */ + volatile uint32_t dctl; + /** Device Status Register (Read Only). <i>Offset: 808h</i> */ + volatile uint32_t dsts; + /** Reserved. <i>Offset: 80Ch</i> */ + uint32_t unused; + /** Device IN Endpoint Common Interrupt Mask + * Register. <i>Offset: 810h</i> */ + volatile uint32_t diepmsk; + /** Device OUT Endpoint Common Interrupt Mask + * Register. <i>Offset: 814h</i> */ + volatile uint32_t doepmsk; + /** Device All Endpoints Interrupt Register. <i>Offset: 818h</i> */ + volatile uint32_t daint; + /** Device All Endpoints Interrupt Mask Register. <i>Offset: + * 81Ch</i> */ + volatile uint32_t daintmsk; + /** Device IN Token Queue Read Register-1 (Read Only). + * <i>Offset: 820h</i> */ + volatile uint32_t dtknqr1; + /** Device IN Token Queue Read Register-2 (Read Only). + * <i>Offset: 824h</i> */ + volatile uint32_t dtknqr2; + /** Device VBUS discharge Register. <i>Offset: 828h</i> */ + volatile uint32_t dvbusdis; + /** Device VBUS Pulse Register. <i>Offset: 82Ch</i> */ + volatile uint32_t dvbuspulse; + /** Device IN Token Queue Read Register-3 (Read Only). / + * Device Thresholding control register (Read/Write) + * <i>Offset: 830h</i> */ + volatile uint32_t dtknqr3_dthrctl; + /** Device IN Token Queue Read Register-4 (Read Only). / + * Device IN EPs empty Inr. Mask Register (Read/Write) + * <i>Offset: 834h</i> */ + volatile uint32_t dtknqr4_fifoemptymsk; + /** Device Each Endpoint Interrupt Register (Read Only). / + * <i>Offset: 838h</i> */ + volatile uint32_t deachint; + /** Device Each Endpoint Interrupt mask Register (Read/Write). / + * <i>Offset: 83Ch</i> */ + volatile uint32_t deachintmsk; + /** Device Each In Endpoint Interrupt mask Register (Read/Write). / + * <i>Offset: 840h</i> */ + volatile uint32_t diepeachintmsk[MAX_EPS_CHANNELS]; + /** Device Each Out Endpoint Interrupt mask Register (Read/Write). / + * <i>Offset: 880h</i> */ + volatile uint32_t doepeachintmsk[MAX_EPS_CHANNELS]; +} dwc_otg_device_global_regs_t; + +/** + * This union represents the bit fields in the Device Configuration + * Register. Read the register into the <i>d32</i> member then + * set/clear the bits using the <i>b</i>it elements. Write the + * <i>d32</i> member to the dcfg register. + */ +typedef union dcfg_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** Device Speed */ + unsigned devspd : 2; + /** Non Zero Length Status OUT Handshake */ + unsigned nzstsouthshk : 1; +#define DWC_DCFG_SEND_STALL 1 + + unsigned reserved3 : 1; + /** Device Addresses */ + unsigned devaddr : 7; + /** Periodic Frame Interval */ + unsigned perfrint : 2; +#define DWC_DCFG_FRAME_INTERVAL_80 0 +#define DWC_DCFG_FRAME_INTERVAL_85 1 +#define DWC_DCFG_FRAME_INTERVAL_90 2 +#define DWC_DCFG_FRAME_INTERVAL_95 3 + + unsigned reserved13_17 : 5; + /** In Endpoint Mis-match count */ + unsigned epmscnt : 5; + /** Enable Descriptor DMA in Device mode */ + unsigned descdma : 1; + } b; +} dcfg_data_t; + +/** + * This union represents the bit fields in the Device Control + * Register. Read the register into the <i>d32</i> member then + * set/clear the bits using the <i>b</i>it elements. + */ +typedef union dctl_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** Remote Wakeup */ + unsigned rmtwkupsig : 1; + /** Soft Disconnect */ + unsigned sftdiscon : 1; + /** Global Non-Periodic IN NAK Status */ + unsigned gnpinnaksts : 1; + /** Global OUT NAK Status */ + unsigned goutnaksts : 1; + /** Test Control */ + unsigned tstctl : 3; + /** Set Global Non-Periodic IN NAK */ + unsigned sgnpinnak : 1; + /** Clear Global Non-Periodic IN NAK */ + unsigned cgnpinnak : 1; + /** Set Global OUT NAK */ + unsigned sgoutnak : 1; + /** Clear Global OUT NAK */ + unsigned cgoutnak : 1; + + /** Power-On Programming Done */ + unsigned pwronprgdone : 1; + /** Global Continue on BNA */ + unsigned gcontbna : 1; + /** Global Multi Count */ + unsigned gmc : 2; + /** Ignore Frame Number for ISOC EPs */ + unsigned ifrmnum : 1; + /** NAK on Babble */ + unsigned nakonbble : 1; + + unsigned reserved16_31 : 16; + } b; +} dctl_data_t; + +/** + * This union represents the bit fields in the Device Status + * Register. Read the register into the <i>d32</i> member then + * set/clear the bits using the <i>b</i>it elements. + */ +typedef union dsts_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** Suspend Status */ + unsigned suspsts : 1; + /** Enumerated Speed */ + unsigned enumspd : 2; +#define DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ 0 +#define DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ 1 +#define DWC_DSTS_ENUMSPD_LS_PHY_6MHZ 2 +#define DWC_DSTS_ENUMSPD_FS_PHY_48MHZ 3 + /** Erratic Error */ + unsigned errticerr : 1; + unsigned reserved4_7: 4; + /** Frame or Microframe Number of the received SOF */ + unsigned soffn : 14; + unsigned reserved22_31 : 10; + } b; +} dsts_data_t; + + +/** + * This union represents the bit fields in the Device IN EP Interrupt + * Register and the Device IN EP Common Mask Register. + * + * - Read the register into the <i>d32</i> member then set/clear the + * bits using the <i>b</i>it elements. + */ +typedef union diepint_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** Transfer complete mask */ + unsigned xfercompl : 1; + /** Endpoint disable mask */ + unsigned epdisabled : 1; + /** AHB Error mask */ + unsigned ahberr : 1; + /** TimeOUT Handshake mask (non-ISOC EPs) */ + unsigned timeout : 1; + /** IN Token received with TxF Empty mask */ + unsigned intktxfemp : 1; + /** IN Token Received with EP mismatch mask */ + unsigned intknepmis : 1; + /** IN Endpoint HAK Effective mask */ + unsigned inepnakeff : 1; + /** IN Endpoint HAK Effective mask */ + unsigned emptyintr : 1; + unsigned txfifoundrn : 1; + + /** BNA Interrupt mask */ + unsigned bna : 1; + unsigned reserved10_12 : 3; + /** BNA Interrupt mask */ + unsigned nak : 1; + unsigned reserved14_31 : 18; + } b; +} diepint_data_t; + +/** + * This union represents the bit fields in the Device IN EP + * Common/Dedicated Interrupt Mask Register. + */ +typedef union diepint_data diepmsk_data_t; + +/** + * This union represents the bit fields in the Device OUT EP Interrupt + * Registerand Device OUT EP Common Interrupt Mask Register. + * + * - Read the register into the <i>d32</i> member then set/clear the + * bits using the <i>b</i>it elements. + */ +typedef union doepint_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** Transfer complete */ + unsigned xfercompl : 1; + /** Endpoint disable */ + unsigned epdisabled : 1; + /** AHB Error */ + unsigned ahberr : 1; + /** Setup Phase Done (contorl EPs) */ + unsigned setup : 1; + /** OUT Token Received when Endpoint Disabled */ + unsigned outtknepdis : 1; + unsigned stsphsercvd : 1; + /** Back-to-Back SETUP Packets Received */ + unsigned back2backsetup : 1; + unsigned reserved7 : 1; + /** OUT packet Error */ + unsigned outpkterr : 1; + /** BNA Interrupt */ + unsigned bna : 1; + unsigned reserved10 : 1; + /** Packet Drop Status */ + unsigned pktdrpsts : 1; + /** Babble Interrupt */ + unsigned babble : 1; + /** NAK Interrupt */ + unsigned nak : 1; + /** NYET Interrupt */ + unsigned nyet : 1; + + unsigned reserved15_31 : 17; + } b; +} doepint_data_t; + +/** + * This union represents the bit fields in the Device OUT EP + * Common/Dedicated Interrupt Mask Register. + */ +typedef union doepint_data doepmsk_data_t; + +/** + * This union represents the bit fields in the Device All EP Interrupt + * and Mask Registers. + * - Read the register into the <i>d32</i> member then set/clear the + * bits using the <i>b</i>it elements. + */ +typedef union daint_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** IN Endpoint bits */ + unsigned in : 16; + /** OUT Endpoint bits */ + unsigned out : 16; + } ep; + struct + { + /** IN Endpoint bits */ + unsigned inep0 : 1; + unsigned inep1 : 1; + unsigned inep2 : 1; + unsigned inep3 : 1; + unsigned inep4 : 1; + unsigned inep5 : 1; + unsigned inep6 : 1; + unsigned inep7 : 1; + unsigned inep8 : 1; + unsigned inep9 : 1; + unsigned inep10 : 1; + unsigned inep11 : 1; + unsigned inep12 : 1; + unsigned inep13 : 1; + unsigned inep14 : 1; + unsigned inep15 : 1; + /** OUT Endpoint bits */ + unsigned outep0 : 1; + unsigned outep1 : 1; + unsigned outep2 : 1; + unsigned outep3 : 1; + unsigned outep4 : 1; + unsigned outep5 : 1; + unsigned outep6 : 1; + unsigned outep7 : 1; + unsigned outep8 : 1; + unsigned outep9 : 1; + unsigned outep10 : 1; + unsigned outep11 : 1; + unsigned outep12 : 1; + unsigned outep13 : 1; + unsigned outep14 : 1; + unsigned outep15 : 1; + } b; +} daint_data_t; + +/** + * This union represents the bit fields in the Device IN Token Queue + * Read Registers. + * - Read the register into the <i>d32</i> member. + * - READ-ONLY Register + */ +typedef union dtknq1_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** In Token Queue Write Pointer */ + unsigned intknwptr : 5; + /** Reserved */ + unsigned reserved05_06 : 2; + /** write pointer has wrapped. */ + unsigned wrap_bit : 1; + /** EP Numbers of IN Tokens 0 ... 4 */ + unsigned epnums0_5 : 24; + }b; +} dtknq1_data_t; + +/** + * This union represents Threshold control Register + * - Read and write the register into the <i>d32</i> member. + * - READ-WRITABLE Register + */ +typedef union dthrctl_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** non ISO Tx Thr. Enable */ + unsigned non_iso_thr_en : 1; + /** ISO Tx Thr. Enable */ + unsigned iso_thr_en : 1; + /** Tx Thr. Length */ + unsigned tx_thr_len : 9; + /** Reserved */ + unsigned reserved11_15 : 5; + /** Rx Thr. Enable */ + unsigned rx_thr_en : 1; + /** Rx Thr. Length */ + unsigned rx_thr_len : 9; + /** Reserved */ + unsigned reserved26_31 : 6; + }b; +} dthrctl_data_t; + + +/** + * Device Logical IN Endpoint-Specific Registers. <i>Offsets + * 900h-AFCh</i> + * + * There will be one set of endpoint registers per logical endpoint + * implemented. + * + * <i>These registers are visible only in Device mode and must not be + * accessed in Host mode, as the results are unknown.</i> + */ +typedef struct dwc_otg_dev_in_ep_regs +{ + /** Device IN Endpoint Control Register. <i>Offset:900h + + * (ep_num * 20h) + 00h</i> */ + volatile uint32_t diepctl; + /** Reserved. <i>Offset:900h + (ep_num * 20h) + 04h</i> */ + uint32_t reserved04; + /** Device IN Endpoint Interrupt Register. <i>Offset:900h + + * (ep_num * 20h) + 08h</i> */ + volatile uint32_t diepint; + /** Reserved. <i>Offset:900h + (ep_num * 20h) + 0Ch</i> */ + uint32_t reserved0C; + /** Device IN Endpoint Transfer Size + * Register. <i>Offset:900h + (ep_num * 20h) + 10h</i> */ + volatile uint32_t dieptsiz; + /** Device IN Endpoint DMA Address Register. <i>Offset:900h + + * (ep_num * 20h) + 14h</i> */ + volatile uint32_t diepdma; + /** Device IN Endpoint Transmit FIFO Status Register. <i>Offset:900h + + * (ep_num * 20h) + 18h</i> */ + volatile uint32_t dtxfsts; + /** Device IN Endpoint DMA Buffer Register. <i>Offset:900h + + * (ep_num * 20h) + 1Ch</i> */ + volatile uint32_t diepdmab; +} dwc_otg_dev_in_ep_regs_t; + +/** + * Device Logical OUT Endpoint-Specific Registers. <i>Offsets: + * B00h-CFCh</i> + * + * There will be one set of endpoint registers per logical endpoint + * implemented. + * + * <i>These registers are visible only in Device mode and must not be + * accessed in Host mode, as the results are unknown.</i> + */ +typedef struct dwc_otg_dev_out_ep_regs +{ + /** Device OUT Endpoint Control Register. <i>Offset:B00h + + * (ep_num * 20h) + 00h</i> */ + volatile uint32_t doepctl; + /** Device OUT Endpoint Frame number Register. <i>Offset: + * B00h + (ep_num * 20h) + 04h</i> */ + volatile uint32_t doepfn; + /** Device OUT Endpoint Interrupt Register. <i>Offset:B00h + + * (ep_num * 20h) + 08h</i> */ + volatile uint32_t doepint; + /** Reserved. <i>Offset:B00h + (ep_num * 20h) + 0Ch</i> */ + uint32_t reserved0C; + /** Device OUT Endpoint Transfer Size Register. <i>Offset: + * B00h + (ep_num * 20h) + 10h</i> */ + volatile uint32_t doeptsiz; + /** Device OUT Endpoint DMA Address Register. <i>Offset:B00h + * + (ep_num * 20h) + 14h</i> */ + volatile uint32_t doepdma; + /** Reserved. <i>Offset:B00h + * (ep_num * 20h) + 1Ch</i> */ + uint32_t unused; + /** Device OUT Endpoint DMA Buffer Register. <i>Offset:B00h + * + (ep_num * 20h) + 1Ch</i> */ + uint32_t doepdmab; +} dwc_otg_dev_out_ep_regs_t; + +/** + * This union represents the bit fields in the Device EP Control + * Register. Read the register into the <i>d32</i> member then + * set/clear the bits using the <i>b</i>it elements. + */ +typedef union depctl_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** Maximum Packet Size + * IN/OUT EPn + * IN/OUT EP0 - 2 bits + * 2'b00: 64 Bytes + * 2'b01: 32 + * 2'b10: 16 + * 2'b11: 8 */ + unsigned mps : 11; +#define DWC_DEP0CTL_MPS_64 0 +#define DWC_DEP0CTL_MPS_32 1 +#define DWC_DEP0CTL_MPS_16 2 +#define DWC_DEP0CTL_MPS_8 3 + + /** Next Endpoint + * IN EPn/IN EP0 + * OUT EPn/OUT EP0 - reserved */ + unsigned nextep : 4; + + /** USB Active Endpoint */ + unsigned usbactep : 1; + + /** Endpoint DPID (INTR/Bulk IN and OUT endpoints) + * This field contains the PID of the packet going to + * be received or transmitted on this endpoint. The + * application should program the PID of the first + * packet going to be received or transmitted on this + * endpoint , after the endpoint is + * activated. Application use the SetD1PID and + * SetD0PID fields of this register to program either + * D0 or D1 PID. + * + * The encoding for this field is + * - 0: D0 + * - 1: D1 + */ + unsigned dpid : 1; + + /** NAK Status */ + unsigned naksts : 1; + + /** Endpoint Type + * 2'b00: Control + * 2'b01: Isochronous + * 2'b10: Bulk + * 2'b11: Interrupt */ + unsigned eptype : 2; + + /** Snoop Mode + * OUT EPn/OUT EP0 + * IN EPn/IN EP0 - reserved */ + unsigned snp : 1; + + /** Stall Handshake */ + unsigned stall : 1; + + /** Tx Fifo Number + * IN EPn/IN EP0 + * OUT EPn/OUT EP0 - reserved */ + unsigned txfnum : 4; + + /** Clear NAK */ + unsigned cnak : 1; + /** Set NAK */ + unsigned snak : 1; + /** Set DATA0 PID (INTR/Bulk IN and OUT endpoints) + * Writing to this field sets the Endpoint DPID (DPID) + * field in this register to DATA0. Set Even + * (micro)frame (SetEvenFr) (ISO IN and OUT Endpoints) + * Writing to this field sets the Even/Odd + * (micro)frame (EO_FrNum) field to even (micro) + * frame. + */ + unsigned setd0pid : 1; + /** Set DATA1 PID (INTR/Bulk IN and OUT endpoints) + * Writing to this field sets the Endpoint DPID (DPID) + * field in this register to DATA1 Set Odd + * (micro)frame (SetOddFr) (ISO IN and OUT Endpoints) + * Writing to this field sets the Even/Odd + * (micro)frame (EO_FrNum) field to odd (micro) frame. + */ + unsigned setd1pid : 1; + /** Endpoint Disable */ + unsigned epdis : 1; + /** Endpoint Enable */ + unsigned epena : 1; + } b; +} depctl_data_t; + +/** + * This union represents the bit fields in the Device EP Transfer + * Size Register. Read the register into the <i>d32</i> member then + * set/clear the bits using the <i>b</i>it elements. + */ +typedef union deptsiz_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Transfer size */ + unsigned xfersize : 19; + /** Packet Count */ + unsigned pktcnt : 10; + /** Multi Count - Periodic IN endpoints */ + unsigned mc : 2; + unsigned reserved : 1; + } b; +} deptsiz_data_t; + +/** + * This union represents the bit fields in the Device EP 0 Transfer + * Size Register. Read the register into the <i>d32</i> member then + * set/clear the bits using the <i>b</i>it elements. + */ +typedef union deptsiz0_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Transfer size */ + unsigned xfersize : 7; + /** Reserved */ + unsigned reserved7_18 : 12; + /** Packet Count */ + unsigned pktcnt : 1; + /** Reserved */ + unsigned reserved20_28 : 9; + /**Setup Packet Count (DOEPTSIZ0 Only) */ + unsigned supcnt : 2; + unsigned reserved31; + } b; +} deptsiz0_data_t; + + +///////////////////////////////////////////////// +// DMA Descriptor Specific Structures +// + +/** Buffer status definitions */ + +#define BS_HOST_READY 0x0 +#define BS_DMA_BUSY 0x1 +#define BS_DMA_DONE 0x2 +#define BS_HOST_BUSY 0x3 + +/** Receive/Transmit status definitions */ + +#define RTS_SUCCESS 0x0 +#define RTS_BUFFLUSH 0x1 +#define RTS_RESERVED 0x2 +#define RTS_BUFERR 0x3 + + +/** + * This union represents the bit fields in the DMA Descriptor + * status quadlet. Read the quadlet into the <i>d32</i> member then + * set/clear the bits using the <i>b</i>it, <i>b_iso_out</i> and + * <i>b_iso_in</i> elements. + */ +typedef union desc_sts_data +{ + /** raw register data */ + uint32_t d32; + /** quadlet bits */ + struct { + /** Received number of bytes */ + unsigned bytes : 16; + + unsigned reserved16_22 : 7; + /** Multiple Transfer - only for OUT EPs */ + unsigned mtrf : 1; + /** Setup Packet received - only for OUT EPs */ + unsigned sr : 1; + /** Interrupt On Complete */ + unsigned ioc : 1; + /** Short Packet */ + unsigned sp : 1; + /** Last */ + unsigned l : 1; + /** Receive Status */ + unsigned sts : 2; + /** Buffer Status */ + unsigned bs : 2; + } b; + +#ifdef DWC_EN_ISOC + /** iso out quadlet bits */ + struct { + /** Received number of bytes */ + unsigned rxbytes : 11; + + unsigned reserved11 : 1; + /** Frame Number */ + unsigned framenum : 11; + /** Received ISO Data PID */ + unsigned pid : 2; + /** Interrupt On Complete */ + unsigned ioc : 1; + /** Short Packet */ + unsigned sp : 1; + /** Last */ + unsigned l : 1; + /** Receive Status */ + unsigned rxsts : 2; + /** Buffer Status */ + unsigned bs : 2; + } b_iso_out; + + /** iso in quadlet bits */ + struct { + /** Transmited number of bytes */ + unsigned txbytes : 12; + /** Frame Number */ + unsigned framenum : 11; + /** Transmited ISO Data PID */ + unsigned pid : 2; + /** Interrupt On Complete */ + unsigned ioc : 1; + /** Short Packet */ + unsigned sp : 1; + /** Last */ + unsigned l : 1; + /** Transmit Status */ + unsigned txsts : 2; + /** Buffer Status */ + unsigned bs : 2; + } b_iso_in; +#endif //DWC_EN_ISOC +} desc_sts_data_t; + +/** + * DMA Descriptor structure + * + * DMA Descriptor structure contains two quadlets: + * Status quadlet and Data buffer pointer. + */ +typedef struct dwc_otg_dma_desc +{ + /** DMA Descriptor status quadlet */ + desc_sts_data_t status; + /** DMA Descriptor data buffer pointer */ + dma_addr_t buf; +} dwc_otg_dma_desc_t; + +/** + * The dwc_otg_dev_if structure contains information needed to manage + * the DWC_otg controller acting in device mode. It represents the + * programming view of the device-specific aspects of the controller. + */ +typedef struct dwc_otg_dev_if +{ + /** Pointer to device Global registers. + * Device Global Registers starting at offset 800h + */ + dwc_otg_device_global_regs_t *dev_global_regs; +#define DWC_DEV_GLOBAL_REG_OFFSET 0x800 + + /** + * Device Logical IN Endpoint-Specific Registers 900h-AFCh + */ + dwc_otg_dev_in_ep_regs_t *in_ep_regs[MAX_EPS_CHANNELS]; +#define DWC_DEV_IN_EP_REG_OFFSET 0x900 +#define DWC_EP_REG_OFFSET 0x20 + + /** Device Logical OUT Endpoint-Specific Registers B00h-CFCh */ + dwc_otg_dev_out_ep_regs_t *out_ep_regs[MAX_EPS_CHANNELS]; +#define DWC_DEV_OUT_EP_REG_OFFSET 0xB00 + + /* Device configuration information*/ + uint8_t speed; /**< Device Speed 0: Unknown, 1: LS, 2:FS, 3: HS */ + uint8_t num_in_eps; /**< Number # of Tx EP range: 0-15 exept ep0 */ + uint8_t num_out_eps; /**< Number # of Rx EP range: 0-15 exept ep 0*/ + + /** Size of periodic FIFOs (Bytes) */ + uint16_t perio_tx_fifo_size[MAX_PERIO_FIFOS]; + + /** Size of Tx FIFOs (Bytes) */ + uint16_t tx_fifo_size[MAX_TX_FIFOS]; + + /** Thresholding enable flags and length varaiables **/ + uint16_t rx_thr_en; + uint16_t iso_tx_thr_en; + uint16_t non_iso_tx_thr_en; + + uint16_t rx_thr_length; + uint16_t tx_thr_length; + + /** + * Pointers to the DMA Descriptors for EP0 Control + * transfers (virtual and physical) + */ + /** 2 descriptors for SETUP packets */ + uint32_t dma_setup_desc_addr[2]; + dwc_otg_dma_desc_t* setup_desc_addr[2]; + + /** Pointer to Descriptor with latest SETUP packet */ + dwc_otg_dma_desc_t* psetup; + + /** Index of current SETUP handler descriptor */ + uint32_t setup_desc_index; + + /** Descriptor for Data In or Status In phases */ + uint32_t dma_in_desc_addr; + dwc_otg_dma_desc_t* in_desc_addr;; + + /** Descriptor for Data Out or Status Out phases */ + uint32_t dma_out_desc_addr; + dwc_otg_dma_desc_t* out_desc_addr; +} dwc_otg_dev_if_t; + + + + +///////////////////////////////////////////////// +// Host Mode Register Structures +// +/** + * The Host Global Registers structure defines the size and relative + * field offsets for the Host Mode Global Registers. Host Global + * Registers offsets 400h-7FFh. +*/ +typedef struct dwc_otg_host_global_regs +{ + /** Host Configuration Register. <i>Offset: 400h</i> */ + volatile uint32_t hcfg; + /** Host Frame Interval Register. <i>Offset: 404h</i> */ + volatile uint32_t hfir; + /** Host Frame Number / Frame Remaining Register. <i>Offset: 408h</i> */ + volatile uint32_t hfnum; + /** Reserved. <i>Offset: 40Ch</i> */ + uint32_t reserved40C; + /** Host Periodic Transmit FIFO/ Queue Status Register. <i>Offset: 410h</i> */ + volatile uint32_t hptxsts; + /** Host All Channels Interrupt Register. <i>Offset: 414h</i> */ + volatile uint32_t haint; + /** Host All Channels Interrupt Mask Register. <i>Offset: 418h</i> */ + volatile uint32_t haintmsk; +} dwc_otg_host_global_regs_t; + +/** + * This union represents the bit fields in the Host Configuration Register. + * Read the register into the <i>d32</i> member then set/clear the bits using + * the <i>b</i>it elements. Write the <i>d32</i> member to the hcfg register. + */ +typedef union hcfg_data +{ + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct + { + /** FS/LS Phy Clock Select */ + unsigned fslspclksel : 2; +#define DWC_HCFG_30_60_MHZ 0 +#define DWC_HCFG_48_MHZ 1 +#define DWC_HCFG_6_MHZ 2 + + /** FS/LS Only Support */ + unsigned fslssupp : 1; + } b; +} hcfg_data_t; + +/** + * This union represents the bit fields in the Host Frame Remaing/Number + * Register. + */ +typedef union hfir_data +{ + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct + { + unsigned frint : 16; + unsigned reserved : 16; + } b; +} hfir_data_t; + +/** + * This union represents the bit fields in the Host Frame Remaing/Number + * Register. + */ +typedef union hfnum_data +{ + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct + { + unsigned frnum : 16; +#define DWC_HFNUM_MAX_FRNUM 0x3FFF + unsigned frrem : 16; + } b; +} hfnum_data_t; + +typedef union hptxsts_data +{ + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct + { + unsigned ptxfspcavail : 16; + unsigned ptxqspcavail : 8; + /** Top of the Periodic Transmit Request Queue + * - bit 24 - Terminate (last entry for the selected channel) + * - bits 26:25 - Token Type + * - 2'b00 - Zero length + * - 2'b01 - Ping + * - 2'b10 - Disable + * - bits 30:27 - Channel Number + * - bit 31 - Odd/even microframe + */ + unsigned ptxqtop_terminate : 1; + unsigned ptxqtop_token : 2; + unsigned ptxqtop_chnum : 4; + unsigned ptxqtop_odd : 1; + } b; +} hptxsts_data_t; + +/** + * This union represents the bit fields in the Host Port Control and Status + * Register. Read the register into the <i>d32</i> member then set/clear the + * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the + * hprt0 register. + */ +typedef union hprt0_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned prtconnsts : 1; + unsigned prtconndet : 1; + unsigned prtena : 1; + unsigned prtenchng : 1; + unsigned prtovrcurract : 1; + unsigned prtovrcurrchng : 1; + unsigned prtres : 1; + unsigned prtsusp : 1; + unsigned prtrst : 1; + unsigned reserved9 : 1; + unsigned prtlnsts : 2; + unsigned prtpwr : 1; + unsigned prttstctl : 4; + unsigned prtspd : 2; +#define DWC_HPRT0_PRTSPD_HIGH_SPEED 0 +#define DWC_HPRT0_PRTSPD_FULL_SPEED 1 +#define DWC_HPRT0_PRTSPD_LOW_SPEED 2 + unsigned reserved19_31 : 13; + } b; +} hprt0_data_t; + +/** + * This union represents the bit fields in the Host All Interrupt + * Register. + */ +typedef union haint_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned ch0 : 1; + unsigned ch1 : 1; + unsigned ch2 : 1; + unsigned ch3 : 1; + unsigned ch4 : 1; + unsigned ch5 : 1; + unsigned ch6 : 1; + unsigned ch7 : 1; + unsigned ch8 : 1; + unsigned ch9 : 1; + unsigned ch10 : 1; + unsigned ch11 : 1; + unsigned ch12 : 1; + unsigned ch13 : 1; + unsigned ch14 : 1; + unsigned ch15 : 1; + unsigned reserved : 16; + } b; + + struct + { + unsigned chint : 16; + unsigned reserved : 16; + } b2; +} haint_data_t; + +/** + * This union represents the bit fields in the Host All Interrupt + * Register. + */ +typedef union haintmsk_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + unsigned ch0 : 1; + unsigned ch1 : 1; + unsigned ch2 : 1; + unsigned ch3 : 1; + unsigned ch4 : 1; + unsigned ch5 : 1; + unsigned ch6 : 1; + unsigned ch7 : 1; + unsigned ch8 : 1; + unsigned ch9 : 1; + unsigned ch10 : 1; + unsigned ch11 : 1; + unsigned ch12 : 1; + unsigned ch13 : 1; + unsigned ch14 : 1; + unsigned ch15 : 1; + unsigned reserved : 16; + } b; + + struct + { + unsigned chint : 16; + unsigned reserved : 16; + } b2; +} haintmsk_data_t; + +/** + * Host Channel Specific Registers. <i>500h-5FCh</i> + */ +typedef struct dwc_otg_hc_regs +{ + /** Host Channel 0 Characteristic Register. <i>Offset: 500h + (chan_num * 20h) + 00h</i> */ + volatile uint32_t hcchar; + /** Host Channel 0 Split Control Register. <i>Offset: 500h + (chan_num * 20h) + 04h</i> */ + volatile uint32_t hcsplt; + /** Host Channel 0 Interrupt Register. <i>Offset: 500h + (chan_num * 20h) + 08h</i> */ + volatile uint32_t hcint; + /** Host Channel 0 Interrupt Mask Register. <i>Offset: 500h + (chan_num * 20h) + 0Ch</i> */ + volatile uint32_t hcintmsk; + /** Host Channel 0 Transfer Size Register. <i>Offset: 500h + (chan_num * 20h) + 10h</i> */ + volatile uint32_t hctsiz; + /** Host Channel 0 DMA Address Register. <i>Offset: 500h + (chan_num * 20h) + 14h</i> */ + volatile uint32_t hcdma; + /** Reserved. <i>Offset: 500h + (chan_num * 20h) + 18h - 500h + (chan_num * 20h) + 1Ch</i> */ + uint32_t reserved[2]; +} dwc_otg_hc_regs_t; + +/** + * This union represents the bit fields in the Host Channel Characteristics + * Register. Read the register into the <i>d32</i> member then set/clear the + * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the + * hcchar register. + */ +typedef union hcchar_data +{ + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct + { + /** Maximum packet size in bytes */ + unsigned mps : 11; + + /** Endpoint number */ + unsigned epnum : 4; + + /** 0: OUT, 1: IN */ + unsigned epdir : 1; + + unsigned reserved : 1; + + /** 0: Full/high speed device, 1: Low speed device */ + unsigned lspddev : 1; + + /** 0: Control, 1: Isoc, 2: Bulk, 3: Intr */ + unsigned eptype : 2; + + /** Packets per frame for periodic transfers. 0 is reserved. */ + unsigned multicnt : 2; + + /** Device address */ + unsigned devaddr : 7; + + /** + * Frame to transmit periodic transaction. + * 0: even, 1: odd + */ + unsigned oddfrm : 1; + + /** Channel disable */ + unsigned chdis : 1; + + /** Channel enable */ + unsigned chen : 1; + } b; +} hcchar_data_t; + +typedef union hcsplt_data +{ + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct + { + /** Port Address */ + unsigned prtaddr : 7; + + /** Hub Address */ + unsigned hubaddr : 7; + + /** Transaction Position */ + unsigned xactpos : 2; +#define DWC_HCSPLIT_XACTPOS_MID 0 +#define DWC_HCSPLIT_XACTPOS_END 1 +#define DWC_HCSPLIT_XACTPOS_BEGIN 2 +#define DWC_HCSPLIT_XACTPOS_ALL 3 + + /** Do Complete Split */ + unsigned compsplt : 1; + + /** Reserved */ + unsigned reserved : 14; + + /** Split Enble */ + unsigned spltena : 1; + } b; +} hcsplt_data_t; + + +/** + * This union represents the bit fields in the Host All Interrupt + * Register. + */ +typedef union hcint_data +{ + /** raw register data */ + uint32_t d32; + /** register bits */ + struct + { + /** Transfer Complete */ + unsigned xfercomp : 1; + /** Channel Halted */ + unsigned chhltd : 1; + /** AHB Error */ + unsigned ahberr : 1; + /** STALL Response Received */ + unsigned stall : 1; + /** NAK Response Received */ + unsigned nak : 1; + /** ACK Response Received */ + unsigned ack : 1; + /** NYET Response Received */ + unsigned nyet : 1; + /** Transaction Err */ + unsigned xacterr : 1; + /** Babble Error */ + unsigned bblerr : 1; + /** Frame Overrun */ + unsigned frmovrun : 1; + /** Data Toggle Error */ + unsigned datatglerr : 1; + /** Reserved */ + unsigned reserved : 21; + } b; +} hcint_data_t; + +/** + * This union represents the bit fields in the Host Channel Transfer Size + * Register. Read the register into the <i>d32</i> member then set/clear the + * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the + * hcchar register. + */ +typedef union hctsiz_data +{ + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct + { + /** Total transfer size in bytes */ + unsigned xfersize : 19; + + /** Data packets to transfer */ + unsigned pktcnt : 10; + + /** + * Packet ID for next data packet + * 0: DATA0 + * 1: DATA2 + * 2: DATA1 + * 3: MDATA (non-Control), SETUP (Control) + */ + unsigned pid : 2; +#define DWC_HCTSIZ_DATA0 0 +#define DWC_HCTSIZ_DATA1 2 +#define DWC_HCTSIZ_DATA2 1 +#define DWC_HCTSIZ_MDATA 3 +#define DWC_HCTSIZ_SETUP 3 + + /** Do PING protocol when 1 */ + unsigned dopng : 1; + } b; +} hctsiz_data_t; + +/** + * This union represents the bit fields in the Host Channel Interrupt Mask + * Register. Read the register into the <i>d32</i> member then set/clear the + * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the + * hcintmsk register. + */ +typedef union hcintmsk_data +{ + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct + { + unsigned xfercompl : 1; + unsigned chhltd : 1; + unsigned ahberr : 1; + unsigned stall : 1; + unsigned nak : 1; + unsigned ack : 1; + unsigned nyet : 1; + unsigned xacterr : 1; + unsigned bblerr : 1; + unsigned frmovrun : 1; + unsigned datatglerr : 1; + unsigned reserved : 21; + } b; +} hcintmsk_data_t; + +/** OTG Host Interface Structure. + * + * The OTG Host Interface Structure structure contains information + * needed to manage the DWC_otg controller acting in host mode. It + * represents the programming view of the host-specific aspects of the + * controller. + */ +typedef struct dwc_otg_host_if +{ + /** Host Global Registers starting at offset 400h.*/ + dwc_otg_host_global_regs_t *host_global_regs; +#define DWC_OTG_HOST_GLOBAL_REG_OFFSET 0x400 + + /** Host Port 0 Control and Status Register */ + volatile uint32_t *hprt0; +#define DWC_OTG_HOST_PORT_REGS_OFFSET 0x440 + + /** Host Channel Specific Registers at offsets 500h-5FCh. */ + dwc_otg_hc_regs_t *hc_regs[MAX_EPS_CHANNELS]; +#define DWC_OTG_HOST_CHAN_REGS_OFFSET 0x500 +#define DWC_OTG_CHAN_REGS_OFFSET 0x20 + + + /* Host configuration information */ + /** Number of Host Channels (range: 1-16) */ + uint8_t num_host_channels; + /** Periodic EPs supported (0: no, 1: yes) */ + uint8_t perio_eps_supported; + /** Periodic Tx FIFO Size (Only 1 host periodic Tx FIFO) */ + uint16_t perio_tx_fifo_size; +} dwc_otg_host_if_t; + + +/** + * This union represents the bit fields in the Power and Clock Gating Control + * Register. Read the register into the <i>d32</i> member then set/clear the + * bits using the <i>b</i>it elements. + */ +typedef union pcgcctl_data +{ + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct + { + /** Stop Pclk */ + unsigned stoppclk : 1; + /** Gate Hclk */ + unsigned gatehclk : 1; + /** Power Clamp */ + unsigned pwrclmp : 1; + /** Reset Power Down Modules */ + unsigned rstpdwnmodule : 1; + /** PHY Suspended */ + unsigned physuspended : 1; + unsigned reserved : 27; + } b; +} pcgcctl_data_t; + + +#endif diff --git a/target/linux/cns3xxx/patches-3.3/200-dwc_otg.patch b/target/linux/cns3xxx/patches-3.3/200-dwc_otg.patch deleted file mode 100644 index f0510fae2c..0000000000 --- a/target/linux/cns3xxx/patches-3.3/200-dwc_otg.patch +++ /dev/null @@ -1,22807 +0,0 @@ ---- a/drivers/Makefile -+++ b/drivers/Makefile -@@ -71,6 +71,7 @@ obj-$(CONFIG_PARIDE) += block/paride/ - obj-$(CONFIG_TC) += tc/ - obj-$(CONFIG_UWB) += uwb/ - obj-$(CONFIG_USB_OTG_UTILS) += usb/ -+obj-$(CONFIG_USB_DWC_OTG) += usb/dwc/ - obj-$(CONFIG_USB) += usb/ - obj-$(CONFIG_PCI) += usb/ - obj-$(CONFIG_USB_GADGET) += usb/ ---- a/drivers/usb/Kconfig -+++ b/drivers/usb/Kconfig -@@ -134,6 +134,8 @@ source "drivers/usb/musb/Kconfig" - - source "drivers/usb/renesas_usbhs/Kconfig" - -+source "drivers/usb/dwc/Kconfig" -+ - source "drivers/usb/class/Kconfig" - - source "drivers/usb/storage/Kconfig" ---- /dev/null -+++ b/drivers/usb/dwc/Kconfig -@@ -0,0 +1,44 @@ -+# -+# USB Dual Role (OTG-ready) Controller Drivers -+# for silicon based on Synopsys DesignWare IP -+# -+ -+comment "Enable Host or Gadget support for DesignWare OTG controller" -+depends on !USB && USB_GADGET=n -+ -+config USB_DWC_OTG -+ tristate "Synopsys DWC OTG Controller" -+ depends on USB -+ help -+ This driver provides USB Device Controller support for the -+ Synopsys DesignWare USB OTG Core used on the Cavium CNS34xx SOC. -+ -+config DWC_DEBUG -+ bool "Enable DWC Debugging" -+ depends on USB_DWC_OTG -+ default n -+ help -+ Enable DWC driver debugging -+ -+choice -+ prompt "DWC Mode Selection" -+ depends on USB_DWC_OTG -+ default DWC_HOST_ONLY -+ help -+ Select the DWC Core in OTG, Host only, or Device only mode. -+ -+config DWC_HOST_ONLY -+ bool "DWC Host Only Mode" -+ -+config DWC_OTG_MODE -+ bool "DWC OTG Mode" -+ select USB_GADGET -+ select USB_GADGET_SELECTED -+ -+config DWC_DEVICE_ONLY -+ bool "DWC Device Only Mode" -+ select USB_GADGET -+ select USB_GADGET_SELECTED -+ -+endchoice -+ ---- /dev/null -+++ b/drivers/usb/dwc/Makefile -@@ -0,0 +1,26 @@ -+# -+# Makefile for DWC_otg Highspeed USB controller driver -+# -+ -+EXTRA_CFLAGS += -DDWC_HS_ELECT_TST -+#EXTRA_CFLAGS += -Dlinux -DDWC_HS_ELECT_TST -+#EXTRA_CFLAGS += -DDWC_EN_ISOC -+ -+ifneq ($(CONFIG_DWC_HOST_ONLY),) -+EXTRA_CFLAGS += -DDWC_HOST_ONLY -+endif -+ -+ifneq ($(CONFIG_DWC_DEVICE_ONLY),) -+EXTRA_CFLAGS += -DDWC_DEVICE_ONLY -+endif -+ -+ifneq ($(CONFIG_DWC_DEBUG),) -+EXTRA_CFLAGS += -DDEBUG -+endif -+ -+obj-$(CONFIG_USB_DWC_OTG) := dwc_otg.o -+ -+dwc_otg-objs := otg_driver.o otg_attr.o -+dwc_otg-objs += otg_cil.o otg_cil_intr.o -+dwc_otg-objs += otg_pcd.o otg_pcd_intr.o -+dwc_otg-objs += otg_hcd.o otg_hcd_intr.o otg_hcd_queue.o ---- /dev/null -+++ b/drivers/usb/dwc/otg_attr.c -@@ -0,0 +1,886 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_attr.c $ -+ * $Revision: #31 $ -+ * $Date: 2008/07/15 $ -+ * $Change: 1064918 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+ -+/** @file -+ * -+ * The diagnostic interface will provide access to the controller for -+ * bringing up the hardware and testing. The Linux driver attributes -+ * feature will be used to provide the Linux Diagnostic -+ * Interface. These attributes are accessed through sysfs. -+ */ -+ -+/** @page "Linux Module Attributes" -+ * -+ * The Linux module attributes feature is used to provide the Linux -+ * Diagnostic Interface. These attributes are accessed through sysfs. -+ * The diagnostic interface will provide access to the controller for -+ * bringing up the hardware and testing. -+ -+ -+ The following table shows the attributes. -+ <table> -+ <tr> -+ <td><b> Name</b></td> -+ <td><b> Description</b></td> -+ <td><b> Access</b></td> -+ </tr> -+ -+ <tr> -+ <td> mode </td> -+ <td> Returns the current mode: 0 for device mode, 1 for host mode</td> -+ <td> Read</td> -+ </tr> -+ -+ <tr> -+ <td> hnpcapable </td> -+ <td> Gets or sets the "HNP-capable" bit in the Core USB Configuraton Register. -+ Read returns the current value.</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> srpcapable </td> -+ <td> Gets or sets the "SRP-capable" bit in the Core USB Configuraton Register. -+ Read returns the current value.</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> hnp </td> -+ <td> Initiates the Host Negotiation Protocol. Read returns the status.</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> srp </td> -+ <td> Initiates the Session Request Protocol. Read returns the status.</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> buspower </td> -+ <td> Gets or sets the Power State of the bus (0 - Off or 1 - On)</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> bussuspend </td> -+ <td> Suspends the USB bus.</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> busconnected </td> -+ <td> Gets the connection status of the bus</td> -+ <td> Read</td> -+ </tr> -+ -+ <tr> -+ <td> gotgctl </td> -+ <td> Gets or sets the Core Control Status Register.</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> gusbcfg </td> -+ <td> Gets or sets the Core USB Configuration Register</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> grxfsiz </td> -+ <td> Gets or sets the Receive FIFO Size Register</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> gnptxfsiz </td> -+ <td> Gets or sets the non-periodic Transmit Size Register</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> gpvndctl </td> -+ <td> Gets or sets the PHY Vendor Control Register</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> ggpio </td> -+ <td> Gets the value in the lower 16-bits of the General Purpose IO Register -+ or sets the upper 16 bits.</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> guid </td> -+ <td> Gets or sets the value of the User ID Register</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> gsnpsid </td> -+ <td> Gets the value of the Synopsys ID Regester</td> -+ <td> Read</td> -+ </tr> -+ -+ <tr> -+ <td> devspeed </td> -+ <td> Gets or sets the device speed setting in the DCFG register</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> enumspeed </td> -+ <td> Gets the device enumeration Speed.</td> -+ <td> Read</td> -+ </tr> -+ -+ <tr> -+ <td> hptxfsiz </td> -+ <td> Gets the value of the Host Periodic Transmit FIFO</td> -+ <td> Read</td> -+ </tr> -+ -+ <tr> -+ <td> hprt0 </td> -+ <td> Gets or sets the value in the Host Port Control and Status Register</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> regoffset </td> -+ <td> Sets the register offset for the next Register Access</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> regvalue </td> -+ <td> Gets or sets the value of the register at the offset in the regoffset attribute.</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> remote_wakeup </td> -+ <td> On read, shows the status of Remote Wakeup. On write, initiates a remote -+ wakeup of the host. When bit 0 is 1 and Remote Wakeup is enabled, the Remote -+ Wakeup signalling bit in the Device Control Register is set for 1 -+ milli-second.</td> -+ <td> Read/Write</td> -+ </tr> -+ -+ <tr> -+ <td> regdump </td> -+ <td> Dumps the contents of core registers.</td> -+ <td> Read</td> -+ </tr> -+ -+ <tr> -+ <td> spramdump </td> -+ <td> Dumps the contents of core registers.</td> -+ <td> Read</td> -+ </tr> -+ -+ <tr> -+ <td> hcddump </td> -+ <td> Dumps the current HCD state.</td> -+ <td> Read</td> -+ </tr> -+ -+ <tr> -+ <td> hcd_frrem </td> -+ <td> Shows the average value of the Frame Remaining -+ field in the Host Frame Number/Frame Remaining register when an SOF interrupt -+ occurs. This can be used to determine the average interrupt latency. Also -+ shows the average Frame Remaining value for start_transfer and the "a" and -+ "b" sample points. The "a" and "b" sample points may be used during debugging -+ bto determine how long it takes to execute a section of the HCD code.</td> -+ <td> Read</td> -+ </tr> -+ -+ <tr> -+ <td> rd_reg_test </td> -+ <td> Displays the time required to read the GNPTXFSIZ register many times -+ (the output shows the number of times the register is read). -+ <td> Read</td> -+ </tr> -+ -+ <tr> -+ <td> wr_reg_test </td> -+ <td> Displays the time required to write the GNPTXFSIZ register many times -+ (the output shows the number of times the register is written). -+ <td> Read</td> -+ </tr> -+ -+ </table> -+ -+ Example usage: -+ To get the current mode: -+ cat /sys/devices/lm0/mode -+ -+ To power down the USB: -+ echo 0 > /sys/devices/lm0/buspower -+ */ -+ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/init.h> -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/errno.h> -+#include <linux/types.h> -+#include <linux/stat.h> /* permission constants */ -+#include <linux/version.h> -+ -+#include <asm/sizes.h> -+#include <asm/io.h> -+#include <asm/sizes.h> -+ -+#include "otg_plat.h" -+#include "otg_attr.h" -+#include "otg_driver.h" -+#include "otg_pcd.h" -+#include "otg_hcd.h" -+ -+/* -+ * MACROs for defining sysfs attribute -+ */ -+#define DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ -+static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \ -+{ \ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t val; \ -+ val = dwc_read_reg32 (_addr_); \ -+ val = (val & (_mask_)) >> _shift_; \ -+ return sprintf (buf, "%s = 0x%x\n", _string_, val); \ -+} -+#define DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ -+static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \ -+ const char *buf, size_t count) \ -+{ \ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t set = simple_strtoul(buf, NULL, 16); \ -+ uint32_t clear = set; \ -+ clear = ((~clear) << _shift_) & _mask_; \ -+ set = (set << _shift_) & _mask_; \ -+ dev_dbg(_dev, "Storing Address=0x%08x Set=0x%08x Clear=0x%08x\n", (uint32_t)_addr_, set, clear); \ -+ dwc_modify_reg32(_addr_, clear, set); \ -+ return count; \ -+} -+ -+/* -+ * MACROs for defining sysfs attribute for 32-bit registers -+ */ -+#define DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_addr_,_string_) \ -+static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \ -+{ \ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t val; \ -+ val = dwc_read_reg32 (_addr_); \ -+ return sprintf (buf, "%s = 0x%08x\n", _string_, val); \ -+} -+#define DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_addr_,_string_) \ -+static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \ -+ const char *buf, size_t count) \ -+{ \ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t val = simple_strtoul(buf, NULL, 16); \ -+ dev_dbg(_dev, "Storing Address=0x%08x Val=0x%08x\n", (uint32_t)_addr_, val); \ -+ dwc_write_reg32(_addr_, val); \ -+ return count; \ -+} -+ -+#define DWC_OTG_DEVICE_ATTR_BITFIELD_RW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ -+DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ -+DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ -+DEVICE_ATTR(_otg_attr_name_,0644,_otg_attr_name_##_show,_otg_attr_name_##_store); -+ -+#define DWC_OTG_DEVICE_ATTR_BITFIELD_RO(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ -+DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \ -+DEVICE_ATTR(_otg_attr_name_,0444,_otg_attr_name_##_show,NULL); -+ -+#define DWC_OTG_DEVICE_ATTR_REG32_RW(_otg_attr_name_,_addr_,_string_) \ -+DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_addr_,_string_) \ -+DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_addr_,_string_) \ -+DEVICE_ATTR(_otg_attr_name_,0644,_otg_attr_name_##_show,_otg_attr_name_##_store); -+ -+#define DWC_OTG_DEVICE_ATTR_REG32_RO(_otg_attr_name_,_addr_,_string_) \ -+DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_addr_,_string_) \ -+DEVICE_ATTR(_otg_attr_name_,0444,_otg_attr_name_##_show,NULL); -+ -+ -+/** @name Functions for Show/Store of Attributes */ -+/**@{*/ -+ -+/** -+ * Show the register offset of the Register Access. -+ */ -+static ssize_t regoffset_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ return snprintf(buf, sizeof("0xFFFFFFFF\n")+1,"0x%08x\n", otg_dev->reg_offset); -+} -+ -+/** -+ * Set the register offset for the next Register Access Read/Write -+ */ -+static ssize_t regoffset_store( struct device *_dev, -+ struct device_attribute *attr, -+ const char *buf, -+ size_t count ) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t offset = simple_strtoul(buf, NULL, 16); -+ //dev_dbg(_dev, "Offset=0x%08x\n", offset); -+ if (offset < SZ_256K ) { -+ otg_dev->reg_offset = offset; -+ } -+ else { -+ dev_err( _dev, "invalid offset\n" ); -+ } -+ -+ return count; -+} -+DEVICE_ATTR(regoffset, S_IRUGO|S_IWUSR, (void *)regoffset_show, regoffset_store); -+ -+ -+/** -+ * Show the value of the register at the offset in the reg_offset -+ * attribute. -+ */ -+static ssize_t regvalue_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t val; -+ volatile uint32_t *addr; -+ -+ if (otg_dev->reg_offset != 0xFFFFFFFF && -+ 0 != otg_dev->base) { -+ /* Calculate the address */ -+ addr = (uint32_t*)(otg_dev->reg_offset + -+ (uint8_t*)otg_dev->base); -+ //dev_dbg(_dev, "@0x%08x\n", (unsigned)addr); -+ val = dwc_read_reg32( addr ); -+ return snprintf(buf, sizeof("Reg@0xFFFFFFFF = 0xFFFFFFFF\n")+1, -+ "Reg@0x%06x = 0x%08x\n", -+ otg_dev->reg_offset, val); -+ } -+ else { -+ dev_err(_dev, "Invalid offset (0x%0x)\n", -+ otg_dev->reg_offset); -+ return sprintf(buf, "invalid offset\n" ); -+ } -+} -+ -+/** -+ * Store the value in the register at the offset in the reg_offset -+ * attribute. -+ * -+ */ -+static ssize_t regvalue_store( struct device *_dev, -+ struct device_attribute *attr, -+ const char *buf, -+ size_t count ) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ volatile uint32_t * addr; -+ uint32_t val = simple_strtoul(buf, NULL, 16); -+ //dev_dbg(_dev, "Offset=0x%08x Val=0x%08x\n", otg_dev->reg_offset, val); -+ if (otg_dev->reg_offset != 0xFFFFFFFF && 0 != otg_dev->base) { -+ /* Calculate the address */ -+ addr = (uint32_t*)(otg_dev->reg_offset + -+ (uint8_t*)otg_dev->base); -+ //dev_dbg(_dev, "@0x%08x\n", (unsigned)addr); -+ dwc_write_reg32( addr, val ); -+ } -+ else { -+ dev_err(_dev, "Invalid Register Offset (0x%08x)\n", -+ otg_dev->reg_offset); -+ } -+ return count; -+} -+DEVICE_ATTR(regvalue, S_IRUGO|S_IWUSR, regvalue_show, regvalue_store); -+ -+/* -+ * Attributes -+ */ -+DWC_OTG_DEVICE_ATTR_BITFIELD_RO(mode,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<20),20,"Mode"); -+DWC_OTG_DEVICE_ATTR_BITFIELD_RW(hnpcapable,&(otg_dev->core_if->core_global_regs->gusbcfg),(1<<9),9,"Mode"); -+DWC_OTG_DEVICE_ATTR_BITFIELD_RW(srpcapable,&(otg_dev->core_if->core_global_regs->gusbcfg),(1<<8),8,"Mode"); -+ -+//DWC_OTG_DEVICE_ATTR_BITFIELD_RW(buspower,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<8),8,"Mode"); -+//DWC_OTG_DEVICE_ATTR_BITFIELD_RW(bussuspend,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<8),8,"Mode"); -+DWC_OTG_DEVICE_ATTR_BITFIELD_RO(busconnected,otg_dev->core_if->host_if->hprt0,0x01,0,"Bus Connected"); -+ -+DWC_OTG_DEVICE_ATTR_REG32_RW(gotgctl,&(otg_dev->core_if->core_global_regs->gotgctl),"GOTGCTL"); -+DWC_OTG_DEVICE_ATTR_REG32_RW(gusbcfg,&(otg_dev->core_if->core_global_regs->gusbcfg),"GUSBCFG"); -+DWC_OTG_DEVICE_ATTR_REG32_RW(grxfsiz,&(otg_dev->core_if->core_global_regs->grxfsiz),"GRXFSIZ"); -+DWC_OTG_DEVICE_ATTR_REG32_RW(gnptxfsiz,&(otg_dev->core_if->core_global_regs->gnptxfsiz),"GNPTXFSIZ"); -+DWC_OTG_DEVICE_ATTR_REG32_RW(gpvndctl,&(otg_dev->core_if->core_global_regs->gpvndctl),"GPVNDCTL"); -+DWC_OTG_DEVICE_ATTR_REG32_RW(ggpio,&(otg_dev->core_if->core_global_regs->ggpio),"GGPIO"); -+DWC_OTG_DEVICE_ATTR_REG32_RW(guid,&(otg_dev->core_if->core_global_regs->guid),"GUID"); -+DWC_OTG_DEVICE_ATTR_REG32_RO(gsnpsid,&(otg_dev->core_if->core_global_regs->gsnpsid),"GSNPSID"); -+DWC_OTG_DEVICE_ATTR_BITFIELD_RW(devspeed,&(otg_dev->core_if->dev_if->dev_global_regs->dcfg),0x3,0,"Device Speed"); -+DWC_OTG_DEVICE_ATTR_BITFIELD_RO(enumspeed,&(otg_dev->core_if->dev_if->dev_global_regs->dsts),0x6,1,"Device Enumeration Speed"); -+ -+DWC_OTG_DEVICE_ATTR_REG32_RO(hptxfsiz,&(otg_dev->core_if->core_global_regs->hptxfsiz),"HPTXFSIZ"); -+DWC_OTG_DEVICE_ATTR_REG32_RW(hprt0,otg_dev->core_if->host_if->hprt0,"HPRT0"); -+ -+ -+/** -+ * @todo Add code to initiate the HNP. -+ */ -+/** -+ * Show the HNP status bit -+ */ -+static ssize_t hnp_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ gotgctl_data_t val; -+ val.d32 = dwc_read_reg32 (&(otg_dev->core_if->core_global_regs->gotgctl)); -+ return sprintf (buf, "HstNegScs = 0x%x\n", val.b.hstnegscs); -+} -+ -+/** -+ * Set the HNP Request bit -+ */ -+static ssize_t hnp_store( struct device *_dev, -+ struct device_attribute *attr, -+ const char *buf, -+ size_t count ) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t in = simple_strtoul(buf, NULL, 16); -+ uint32_t *addr = (uint32_t *)&(otg_dev->core_if->core_global_regs->gotgctl); -+ gotgctl_data_t mem; -+ mem.d32 = dwc_read_reg32(addr); -+ mem.b.hnpreq = in; -+ dev_dbg(_dev, "Storing Address=0x%08x Data=0x%08x\n", (uint32_t)addr, mem.d32); -+ dwc_write_reg32(addr, mem.d32); -+ return count; -+} -+DEVICE_ATTR(hnp, 0644, hnp_show, hnp_store); -+ -+/** -+ * @todo Add code to initiate the SRP. -+ */ -+/** -+ * Show the SRP status bit -+ */ -+static ssize_t srp_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+#ifndef DWC_HOST_ONLY -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ gotgctl_data_t val; -+ val.d32 = dwc_read_reg32 (&(otg_dev->core_if->core_global_regs->gotgctl)); -+ return sprintf (buf, "SesReqScs = 0x%x\n", val.b.sesreqscs); -+#else -+ return sprintf(buf, "Host Only Mode!\n"); -+#endif -+} -+ -+ -+ -+/** -+ * Set the SRP Request bit -+ */ -+static ssize_t srp_store( struct device *_dev, -+ struct device_attribute *attr, -+ const char *buf, -+ size_t count ) -+{ -+#ifndef DWC_HOST_ONLY -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ dwc_otg_pcd_initiate_srp(otg_dev->pcd); -+#endif -+ return count; -+} -+DEVICE_ATTR(srp, 0644, srp_show, srp_store); -+ -+/** -+ * @todo Need to do more for power on/off? -+ */ -+/** -+ * Show the Bus Power status -+ */ -+static ssize_t buspower_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ hprt0_data_t val; -+ val.d32 = dwc_read_reg32 (otg_dev->core_if->host_if->hprt0); -+ return sprintf (buf, "Bus Power = 0x%x\n", val.b.prtpwr); -+} -+ -+ -+/** -+ * Set the Bus Power status -+ */ -+static ssize_t buspower_store( struct device *_dev, -+ struct device_attribute *attr, -+ const char *buf, -+ size_t count ) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t on = simple_strtoul(buf, NULL, 16); -+ uint32_t *addr = (uint32_t *)otg_dev->core_if->host_if->hprt0; -+ hprt0_data_t mem; -+ -+ mem.d32 = dwc_read_reg32(addr); -+ mem.b.prtpwr = on; -+ -+ //dev_dbg(_dev, "Storing Address=0x%08x Data=0x%08x\n", (uint32_t)addr, mem.d32); -+ dwc_write_reg32(addr, mem.d32); -+ -+ return count; -+} -+DEVICE_ATTR(buspower, 0644, buspower_show, buspower_store); -+ -+/** -+ * @todo Need to do more for suspend? -+ */ -+/** -+ * Show the Bus Suspend status -+ */ -+static ssize_t bussuspend_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ hprt0_data_t val; -+ val.d32 = dwc_read_reg32 (otg_dev->core_if->host_if->hprt0); -+ return sprintf (buf, "Bus Suspend = 0x%x\n", val.b.prtsusp); -+} -+ -+/** -+ * Set the Bus Suspend status -+ */ -+static ssize_t bussuspend_store( struct device *_dev, -+ struct device_attribute *attr, -+ const char *buf, -+ size_t count ) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t in = simple_strtoul(buf, NULL, 16); -+ uint32_t *addr = (uint32_t *)otg_dev->core_if->host_if->hprt0; -+ hprt0_data_t mem; -+ mem.d32 = dwc_read_reg32(addr); -+ mem.b.prtsusp = in; -+ dev_dbg(_dev, "Storing Address=0x%08x Data=0x%08x\n", (uint32_t)addr, mem.d32); -+ dwc_write_reg32(addr, mem.d32); -+ return count; -+} -+DEVICE_ATTR(bussuspend, 0644, bussuspend_show, bussuspend_store); -+ -+/** -+ * Show the status of Remote Wakeup. -+ */ -+static ssize_t remote_wakeup_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+#ifndef DWC_HOST_ONLY -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ dctl_data_t val; -+ val.d32 = -+ dwc_read_reg32( &otg_dev->core_if->dev_if->dev_global_regs->dctl); -+ return sprintf( buf, "Remote Wakeup = %d Enabled = %d\n", -+ val.b.rmtwkupsig, otg_dev->pcd->remote_wakeup_enable); -+#else -+ return sprintf(buf, "Host Only Mode!\n"); -+#endif -+} -+/** -+ * Initiate a remote wakeup of the host. The Device control register -+ * Remote Wakeup Signal bit is written if the PCD Remote wakeup enable -+ * flag is set. -+ * -+ */ -+static ssize_t remote_wakeup_store( struct device *_dev, -+ struct device_attribute *attr, -+ const char *buf, -+ size_t count ) -+{ -+#ifndef DWC_HOST_ONLY -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t val = simple_strtoul(buf, NULL, 16); -+ if (val&1) { -+ dwc_otg_pcd_remote_wakeup(otg_dev->pcd, 1); -+ } -+ else { -+ dwc_otg_pcd_remote_wakeup(otg_dev->pcd, 0); -+ } -+#endif -+ return count; -+} -+DEVICE_ATTR(remote_wakeup, S_IRUGO|S_IWUSR, remote_wakeup_show, -+ remote_wakeup_store); -+ -+/** -+ * Dump global registers and either host or device registers (depending on the -+ * current mode of the core). -+ */ -+static ssize_t regdump_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ dwc_otg_dump_global_registers( otg_dev->core_if); -+ if (dwc_otg_is_host_mode(otg_dev->core_if)) { -+ dwc_otg_dump_host_registers( otg_dev->core_if); -+ } else { -+ dwc_otg_dump_dev_registers( otg_dev->core_if); -+ -+ } -+ return sprintf( buf, "Register Dump\n" ); -+} -+ -+DEVICE_ATTR(regdump, S_IRUGO|S_IWUSR, regdump_show, 0); -+ -+/** -+ * Dump global registers and either host or device registers (depending on the -+ * current mode of the core). -+ */ -+static ssize_t spramdump_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ dwc_otg_dump_spram( otg_dev->core_if); -+ -+ return sprintf( buf, "SPRAM Dump\n" ); -+} -+ -+DEVICE_ATTR(spramdump, S_IRUGO|S_IWUSR, spramdump_show, 0); -+ -+/** -+ * Dump the current hcd state. -+ */ -+static ssize_t hcddump_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+#ifndef DWC_DEVICE_ONLY -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ dwc_otg_hcd_dump_state(otg_dev->hcd); -+#endif -+ return sprintf( buf, "HCD Dump\n" ); -+} -+ -+DEVICE_ATTR(hcddump, S_IRUGO|S_IWUSR, hcddump_show, 0); -+ -+/** -+ * Dump the average frame remaining at SOF. This can be used to -+ * determine average interrupt latency. Frame remaining is also shown for -+ * start transfer and two additional sample points. -+ */ -+static ssize_t hcd_frrem_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+#ifndef DWC_DEVICE_ONLY -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ dwc_otg_hcd_dump_frrem(otg_dev->hcd); -+#endif -+ return sprintf( buf, "HCD Dump Frame Remaining\n" ); -+} -+ -+DEVICE_ATTR(hcd_frrem, S_IRUGO|S_IWUSR, hcd_frrem_show, 0); -+ -+/** -+ * Displays the time required to read the GNPTXFSIZ register many times (the -+ * output shows the number of times the register is read). -+ */ -+#define RW_REG_COUNT 10000000 -+#define MSEC_PER_JIFFIE 1000/HZ -+static ssize_t rd_reg_test_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ int i; -+ int time; -+ int start_jiffies; -+ -+ printk("HZ %d, MSEC_PER_JIFFIE %d, loops_per_jiffy %lu\n", -+ HZ, MSEC_PER_JIFFIE, loops_per_jiffy); -+ start_jiffies = jiffies; -+ for (i = 0; i < RW_REG_COUNT; i++) { -+ dwc_read_reg32(&otg_dev->core_if->core_global_regs->gnptxfsiz); -+ } -+ time = jiffies - start_jiffies; -+ return sprintf( buf, "Time to read GNPTXFSIZ reg %d times: %d msecs (%d jiffies)\n", -+ RW_REG_COUNT, time * MSEC_PER_JIFFIE, time ); -+} -+ -+DEVICE_ATTR(rd_reg_test, S_IRUGO|S_IWUSR, rd_reg_test_show, 0); -+ -+/** -+ * Displays the time required to write the GNPTXFSIZ register many times (the -+ * output shows the number of times the register is written). -+ */ -+static ssize_t wr_reg_test_show( struct device *_dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct platform_device *pdev = container_of(_dev, struct platform_device, dev); \ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); \ -+ uint32_t reg_val; -+ int i; -+ int time; -+ int start_jiffies; -+ -+ printk("HZ %d, MSEC_PER_JIFFIE %d, loops_per_jiffy %lu\n", -+ HZ, MSEC_PER_JIFFIE, loops_per_jiffy); -+ reg_val = dwc_read_reg32(&otg_dev->core_if->core_global_regs->gnptxfsiz); -+ start_jiffies = jiffies; -+ for (i = 0; i < RW_REG_COUNT; i++) { -+ dwc_write_reg32(&otg_dev->core_if->core_global_regs->gnptxfsiz, reg_val); -+ } -+ time = jiffies - start_jiffies; -+ return sprintf( buf, "Time to write GNPTXFSIZ reg %d times: %d msecs (%d jiffies)\n", -+ RW_REG_COUNT, time * MSEC_PER_JIFFIE, time); -+} -+ -+DEVICE_ATTR(wr_reg_test, S_IRUGO|S_IWUSR, wr_reg_test_show, 0); -+/**@}*/ -+ -+/** -+ * Create the device files -+ */ -+void dwc_otg_attr_create (struct platform_device *pdev) -+{ -+ struct device *dev = &pdev->dev; -+ int error; -+ -+ error = device_create_file(dev, &dev_attr_regoffset); -+ error = device_create_file(dev, &dev_attr_regvalue); -+ error = device_create_file(dev, &dev_attr_mode); -+ error = device_create_file(dev, &dev_attr_hnpcapable); -+ error = device_create_file(dev, &dev_attr_srpcapable); -+ error = device_create_file(dev, &dev_attr_hnp); -+ error = device_create_file(dev, &dev_attr_srp); -+ error = device_create_file(dev, &dev_attr_buspower); -+ error = device_create_file(dev, &dev_attr_bussuspend); -+ error = device_create_file(dev, &dev_attr_busconnected); -+ error = device_create_file(dev, &dev_attr_gotgctl); -+ error = device_create_file(dev, &dev_attr_gusbcfg); -+ error = device_create_file(dev, &dev_attr_grxfsiz); -+ error = device_create_file(dev, &dev_attr_gnptxfsiz); -+ error = device_create_file(dev, &dev_attr_gpvndctl); -+ error = device_create_file(dev, &dev_attr_ggpio); -+ error = device_create_file(dev, &dev_attr_guid); -+ error = device_create_file(dev, &dev_attr_gsnpsid); -+ error = device_create_file(dev, &dev_attr_devspeed); -+ error = device_create_file(dev, &dev_attr_enumspeed); -+ error = device_create_file(dev, &dev_attr_hptxfsiz); -+ error = device_create_file(dev, &dev_attr_hprt0); -+ error = device_create_file(dev, &dev_attr_remote_wakeup); -+ error = device_create_file(dev, &dev_attr_regdump); -+ error = device_create_file(dev, &dev_attr_spramdump); -+ error = device_create_file(dev, &dev_attr_hcddump); -+ error = device_create_file(dev, &dev_attr_hcd_frrem); -+ error = device_create_file(dev, &dev_attr_rd_reg_test); -+ error = device_create_file(dev, &dev_attr_wr_reg_test); -+} -+ -+/** -+ * Remove the device files -+ */ -+void dwc_otg_attr_remove (struct platform_device *pdev) -+{ -+ struct device *dev = &pdev->dev; -+ -+ device_remove_file(dev, &dev_attr_regoffset); -+ device_remove_file(dev, &dev_attr_regvalue); -+ device_remove_file(dev, &dev_attr_mode); -+ device_remove_file(dev, &dev_attr_hnpcapable); -+ device_remove_file(dev, &dev_attr_srpcapable); -+ device_remove_file(dev, &dev_attr_hnp); -+ device_remove_file(dev, &dev_attr_srp); -+ device_remove_file(dev, &dev_attr_buspower); -+ device_remove_file(dev, &dev_attr_bussuspend); -+ device_remove_file(dev, &dev_attr_busconnected); -+ device_remove_file(dev, &dev_attr_gotgctl); -+ device_remove_file(dev, &dev_attr_gusbcfg); -+ device_remove_file(dev, &dev_attr_grxfsiz); -+ device_remove_file(dev, &dev_attr_gnptxfsiz); -+ device_remove_file(dev, &dev_attr_gpvndctl); -+ device_remove_file(dev, &dev_attr_ggpio); -+ device_remove_file(dev, &dev_attr_guid); -+ device_remove_file(dev, &dev_attr_gsnpsid); -+ device_remove_file(dev, &dev_attr_devspeed); -+ device_remove_file(dev, &dev_attr_enumspeed); -+ device_remove_file(dev, &dev_attr_hptxfsiz); -+ device_remove_file(dev, &dev_attr_hprt0); -+ device_remove_file(dev, &dev_attr_remote_wakeup); -+ device_remove_file(dev, &dev_attr_regdump); -+ device_remove_file(dev, &dev_attr_spramdump); -+ device_remove_file(dev, &dev_attr_hcddump); -+ device_remove_file(dev, &dev_attr_hcd_frrem); -+ device_remove_file(dev, &dev_attr_rd_reg_test); -+ device_remove_file(dev, &dev_attr_wr_reg_test); -+} ---- /dev/null -+++ b/drivers/usb/dwc/otg_attr.h -@@ -0,0 +1,67 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_attr.h $ -+ * $Revision: #7 $ -+ * $Date: 2005/03/28 $ -+ * $Change: 477051 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+ -+#if !defined(__DWC_OTG_ATTR_H__) -+#define __DWC_OTG_ATTR_H__ -+ -+/** @file -+ * This file contains the interface to the Linux device attributes. -+ */ -+extern struct device_attribute dev_attr_regoffset; -+extern struct device_attribute dev_attr_regvalue; -+ -+extern struct device_attribute dev_attr_mode; -+extern struct device_attribute dev_attr_hnpcapable; -+extern struct device_attribute dev_attr_srpcapable; -+extern struct device_attribute dev_attr_hnp; -+extern struct device_attribute dev_attr_srp; -+extern struct device_attribute dev_attr_buspower; -+extern struct device_attribute dev_attr_bussuspend; -+extern struct device_attribute dev_attr_busconnected; -+extern struct device_attribute dev_attr_gotgctl; -+extern struct device_attribute dev_attr_gusbcfg; -+extern struct device_attribute dev_attr_grxfsiz; -+extern struct device_attribute dev_attr_gnptxfsiz; -+extern struct device_attribute dev_attr_gpvndctl; -+extern struct device_attribute dev_attr_ggpio; -+extern struct device_attribute dev_attr_guid; -+extern struct device_attribute dev_attr_gsnpsid; -+extern struct device_attribute dev_attr_devspeed; -+extern struct device_attribute dev_attr_enumspeed; -+extern struct device_attribute dev_attr_hptxfsiz; -+extern struct device_attribute dev_attr_hprt0; -+ -+void dwc_otg_attr_create (struct platform_device *pdev); -+void dwc_otg_attr_remove (struct platform_device *pdev); -+ -+#endif ---- /dev/null -+++ b/drivers/usb/dwc/otg_cil.c -@@ -0,0 +1,3831 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil.c $ -+ * $Revision: #147 $ -+ * $Date: 2008/10/16 $ -+ * $Change: 1117667 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+ -+/** @file -+ * -+ * The Core Interface Layer provides basic services for accessing and -+ * managing the DWC_otg hardware. These services are used by both the -+ * Host Controller Driver and the Peripheral Controller Driver. -+ * -+ * The CIL manages the memory map for the core so that the HCD and PCD -+ * don't have to do this separately. It also handles basic tasks like -+ * reading/writing the registers and data FIFOs in the controller. -+ * Some of the data access functions provide encapsulation of several -+ * operations required to perform a task, such as writing multiple -+ * registers to start a transfer. Finally, the CIL performs basic -+ * services that are not specific to either the host or device modes -+ * of operation. These services include management of the OTG Host -+ * Negotiation Protocol (HNP) and Session Request Protocol (SRP). A -+ * Diagnostic API is also provided to allow testing of the controller -+ * hardware. -+ * -+ * The Core Interface Layer has the following requirements: -+ * - Provides basic controller operations. -+ * - Minimal use of OS services. -+ * - The OS services used will be abstracted by using inline functions -+ * or macros. -+ * -+ */ -+#include <asm/unaligned.h> -+#include <linux/dma-mapping.h> -+#ifdef DEBUG -+#include <linux/jiffies.h> -+#endif -+ -+#include "otg_plat.h" -+#include "otg_regs.h" -+#include "otg_cil.h" -+#include "otg_pcd.h" -+ -+ -+/** -+ * This function is called to initialize the DWC_otg CSR data -+ * structures. The register addresses in the device and host -+ * structures are initialized from the base address supplied by the -+ * caller. The calling function must make the OS calls to get the -+ * base address of the DWC_otg controller registers. The core_params -+ * argument holds the parameters that specify how the core should be -+ * configured. -+ * -+ * @param[in] reg_base_addr Base address of DWC_otg core registers -+ * @param[in] core_params Pointer to the core configuration parameters -+ * -+ */ -+dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t *reg_base_addr, -+ dwc_otg_core_params_t *core_params) -+{ -+ dwc_otg_core_if_t *core_if = 0; -+ dwc_otg_dev_if_t *dev_if = 0; -+ dwc_otg_host_if_t *host_if = 0; -+ uint8_t *reg_base = (uint8_t *)reg_base_addr; -+ int i = 0; -+ -+ DWC_DEBUGPL(DBG_CILV, "%s(%p,%p)\n", __func__, reg_base_addr, core_params); -+ -+ core_if = kmalloc(sizeof(dwc_otg_core_if_t), GFP_KERNEL); -+ -+ if (core_if == 0) { -+ DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_core_if_t failed\n"); -+ return 0; -+ } -+ -+ memset(core_if, 0, sizeof(dwc_otg_core_if_t)); -+ -+ core_if->core_params = core_params; -+ core_if->core_global_regs = (dwc_otg_core_global_regs_t *)reg_base; -+ -+ /* -+ * Allocate the Device Mode structures. -+ */ -+ dev_if = kmalloc(sizeof(dwc_otg_dev_if_t), GFP_KERNEL); -+ -+ if (dev_if == 0) { -+ DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_dev_if_t failed\n"); -+ kfree(core_if); -+ return 0; -+ } -+ -+ dev_if->dev_global_regs = -+ (dwc_otg_device_global_regs_t *)(reg_base + DWC_DEV_GLOBAL_REG_OFFSET); -+ -+ for (i=0; i<MAX_EPS_CHANNELS; i++) -+ { -+ dev_if->in_ep_regs[i] = (dwc_otg_dev_in_ep_regs_t *) -+ (reg_base + DWC_DEV_IN_EP_REG_OFFSET + -+ (i * DWC_EP_REG_OFFSET)); -+ -+ dev_if->out_ep_regs[i] = (dwc_otg_dev_out_ep_regs_t *) -+ (reg_base + DWC_DEV_OUT_EP_REG_OFFSET + -+ (i * DWC_EP_REG_OFFSET)); -+ DWC_DEBUGPL(DBG_CILV, "in_ep_regs[%d]->diepctl=%p\n", -+ i, &dev_if->in_ep_regs[i]->diepctl); -+ DWC_DEBUGPL(DBG_CILV, "out_ep_regs[%d]->doepctl=%p\n", -+ i, &dev_if->out_ep_regs[i]->doepctl); -+ } -+ -+ dev_if->speed = 0; // unknown -+ -+ core_if->dev_if = dev_if; -+ -+ /* -+ * Allocate the Host Mode structures. -+ */ -+ host_if = kmalloc(sizeof(dwc_otg_host_if_t), GFP_KERNEL); -+ -+ if (host_if == 0) { -+ DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_host_if_t failed\n"); -+ kfree(dev_if); -+ kfree(core_if); -+ return 0; -+ } -+ -+ host_if->host_global_regs = (dwc_otg_host_global_regs_t *) -+ (reg_base + DWC_OTG_HOST_GLOBAL_REG_OFFSET); -+ -+ host_if->hprt0 = (uint32_t*)(reg_base + DWC_OTG_HOST_PORT_REGS_OFFSET); -+ -+ for (i=0; i<MAX_EPS_CHANNELS; i++) -+ { -+ host_if->hc_regs[i] = (dwc_otg_hc_regs_t *) -+ (reg_base + DWC_OTG_HOST_CHAN_REGS_OFFSET + -+ (i * DWC_OTG_CHAN_REGS_OFFSET)); -+ DWC_DEBUGPL(DBG_CILV, "hc_reg[%d]->hcchar=%p\n", -+ i, &host_if->hc_regs[i]->hcchar); -+ } -+ -+ host_if->num_host_channels = MAX_EPS_CHANNELS; -+ core_if->host_if = host_if; -+ -+ for (i=0; i<MAX_EPS_CHANNELS; i++) -+ { -+ core_if->data_fifo[i] = -+ (uint32_t *)(reg_base + DWC_OTG_DATA_FIFO_OFFSET + -+ (i * DWC_OTG_DATA_FIFO_SIZE)); -+ DWC_DEBUGPL(DBG_CILV, "data_fifo[%d]=0x%08x\n", -+ i, (unsigned)core_if->data_fifo[i]); -+ } -+ -+ core_if->pcgcctl = (uint32_t*)(reg_base + DWC_OTG_PCGCCTL_OFFSET); -+ -+ /* -+ * Store the contents of the hardware configuration registers here for -+ * easy access later. -+ */ -+ core_if->hwcfg1.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg1); -+ core_if->hwcfg2.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg2); -+ core_if->hwcfg3.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg3); -+ core_if->hwcfg4.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg4); -+ -+ DWC_DEBUGPL(DBG_CILV,"hwcfg1=%08x\n",core_if->hwcfg1.d32); -+ DWC_DEBUGPL(DBG_CILV,"hwcfg2=%08x\n",core_if->hwcfg2.d32); -+ DWC_DEBUGPL(DBG_CILV,"hwcfg3=%08x\n",core_if->hwcfg3.d32); -+ DWC_DEBUGPL(DBG_CILV,"hwcfg4=%08x\n",core_if->hwcfg4.d32); -+ -+ core_if->hcfg.d32 = dwc_read_reg32(&core_if->host_if->host_global_regs->hcfg); -+ core_if->dcfg.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dcfg); -+ -+ DWC_DEBUGPL(DBG_CILV,"hcfg=%08x\n",core_if->hcfg.d32); -+ DWC_DEBUGPL(DBG_CILV,"dcfg=%08x\n",core_if->dcfg.d32); -+ -+ DWC_DEBUGPL(DBG_CILV,"op_mode=%0x\n",core_if->hwcfg2.b.op_mode); -+ DWC_DEBUGPL(DBG_CILV,"arch=%0x\n",core_if->hwcfg2.b.architecture); -+ DWC_DEBUGPL(DBG_CILV,"num_dev_ep=%d\n",core_if->hwcfg2.b.num_dev_ep); -+ DWC_DEBUGPL(DBG_CILV,"num_host_chan=%d\n",core_if->hwcfg2.b.num_host_chan); -+ DWC_DEBUGPL(DBG_CILV,"nonperio_tx_q_depth=0x%0x\n",core_if->hwcfg2.b.nonperio_tx_q_depth); -+ DWC_DEBUGPL(DBG_CILV,"host_perio_tx_q_depth=0x%0x\n",core_if->hwcfg2.b.host_perio_tx_q_depth); -+ DWC_DEBUGPL(DBG_CILV,"dev_token_q_depth=0x%0x\n",core_if->hwcfg2.b.dev_token_q_depth); -+ -+ DWC_DEBUGPL(DBG_CILV,"Total FIFO SZ=%d\n", core_if->hwcfg3.b.dfifo_depth); -+ DWC_DEBUGPL(DBG_CILV,"xfer_size_cntr_width=%0x\n", core_if->hwcfg3.b.xfer_size_cntr_width); -+ -+ /* -+ * Set the SRP sucess bit for FS-I2c -+ */ -+ core_if->srp_success = 0; -+ core_if->srp_timer_started = 0; -+ -+ -+ /* -+ * Create new workqueue and init works -+ */ -+ core_if->wq_otg = create_singlethread_workqueue("dwc_otg"); -+ if(core_if->wq_otg == 0) { -+ DWC_DEBUGPL(DBG_CIL, "Creation of wq_otg failed\n"); -+ kfree(host_if); -+ kfree(dev_if); -+ kfree(core_if); -+ return 0 * HZ; -+ } -+ INIT_WORK(&core_if->w_conn_id, w_conn_id_status_change); -+ INIT_DELAYED_WORK(&core_if->w_wkp, w_wakeup_detected); -+ -+ return core_if; -+} -+ -+/** -+ * This function frees the structures allocated by dwc_otg_cil_init(). -+ * -+ * @param[in] core_if The core interface pointer returned from -+ * dwc_otg_cil_init(). -+ * -+ */ -+void dwc_otg_cil_remove(dwc_otg_core_if_t *core_if) -+{ -+ /* Disable all interrupts */ -+ dwc_modify_reg32(&core_if->core_global_regs->gahbcfg, 1, 0); -+ dwc_write_reg32(&core_if->core_global_regs->gintmsk, 0); -+ -+ if (core_if->wq_otg) { -+ destroy_workqueue(core_if->wq_otg); -+ } -+ if (core_if->dev_if) { -+ kfree(core_if->dev_if); -+ } -+ if (core_if->host_if) { -+ kfree(core_if->host_if); -+ } -+ kfree(core_if); -+} -+ -+/** -+ * This function enables the controller's Global Interrupt in the AHB Config -+ * register. -+ * -+ * @param[in] core_if Programming view of DWC_otg controller. -+ */ -+void dwc_otg_enable_global_interrupts(dwc_otg_core_if_t *core_if) -+{ -+ gahbcfg_data_t ahbcfg = { .d32 = 0}; -+ ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */ -+ dwc_modify_reg32(&core_if->core_global_regs->gahbcfg, 0, ahbcfg.d32); -+} -+ -+/** -+ * This function disables the controller's Global Interrupt in the AHB Config -+ * register. -+ * -+ * @param[in] core_if Programming view of DWC_otg controller. -+ */ -+void dwc_otg_disable_global_interrupts(dwc_otg_core_if_t *core_if) -+{ -+ gahbcfg_data_t ahbcfg = { .d32 = 0}; -+ ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */ -+ dwc_modify_reg32(&core_if->core_global_regs->gahbcfg, ahbcfg.d32, 0); -+} -+ -+/** -+ * This function initializes the commmon interrupts, used in both -+ * device and host modes. -+ * -+ * @param[in] core_if Programming view of the DWC_otg controller -+ * -+ */ -+static void dwc_otg_enable_common_interrupts(dwc_otg_core_if_t *core_if) -+{ -+ dwc_otg_core_global_regs_t *global_regs = -+ core_if->core_global_regs; -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ -+ /* Clear any pending OTG Interrupts */ -+ dwc_write_reg32(&global_regs->gotgint, 0xFFFFFFFF); -+ -+ /* Clear any pending interrupts */ -+ dwc_write_reg32(&global_regs->gintsts, 0xFFFFFFFF); -+ -+ /* -+ * Enable the interrupts in the GINTMSK. -+ */ -+ intr_mask.b.modemismatch = 1; -+ intr_mask.b.otgintr = 1; -+ -+ if (!core_if->dma_enable) { -+ intr_mask.b.rxstsqlvl = 1; -+ } -+ -+ intr_mask.b.conidstschng = 1; -+ intr_mask.b.wkupintr = 1; -+ intr_mask.b.disconnect = 1; -+ intr_mask.b.usbsuspend = 1; -+ intr_mask.b.sessreqintr = 1; -+ dwc_write_reg32(&global_regs->gintmsk, intr_mask.d32); -+} -+ -+/** -+ * Initializes the FSLSPClkSel field of the HCFG register depending on the PHY -+ * type. -+ */ -+static void init_fslspclksel(dwc_otg_core_if_t *core_if) -+{ -+ uint32_t val; -+ hcfg_data_t hcfg; -+ -+ if (((core_if->hwcfg2.b.hs_phy_type == 2) && -+ (core_if->hwcfg2.b.fs_phy_type == 1) && -+ (core_if->core_params->ulpi_fs_ls)) || -+ (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) { -+ /* Full speed PHY */ -+ val = DWC_HCFG_48_MHZ; -+ } -+ else { -+ /* High speed PHY running at full speed or high speed */ -+ val = DWC_HCFG_30_60_MHZ; -+ } -+ -+ DWC_DEBUGPL(DBG_CIL, "Initializing HCFG.FSLSPClkSel to 0x%1x\n", val); -+ hcfg.d32 = dwc_read_reg32(&core_if->host_if->host_global_regs->hcfg); -+ hcfg.b.fslspclksel = val; -+ dwc_write_reg32(&core_if->host_if->host_global_regs->hcfg, hcfg.d32); -+} -+ -+/** -+ * Initializes the DevSpd field of the DCFG register depending on the PHY type -+ * and the enumeration speed of the device. -+ */ -+static void init_devspd(dwc_otg_core_if_t *core_if) -+{ -+ uint32_t val; -+ dcfg_data_t dcfg; -+ -+ if (((core_if->hwcfg2.b.hs_phy_type == 2) && -+ (core_if->hwcfg2.b.fs_phy_type == 1) && -+ (core_if->core_params->ulpi_fs_ls)) || -+ (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) { -+ /* Full speed PHY */ -+ val = 0x3; -+ } -+ else if (core_if->core_params->speed == DWC_SPEED_PARAM_FULL) { -+ /* High speed PHY running at full speed */ -+ val = 0x1; -+ } -+ else { -+ /* High speed PHY running at high speed */ -+ val = 0x0; -+ } -+ -+ DWC_DEBUGPL(DBG_CIL, "Initializing DCFG.DevSpd to 0x%1x\n", val); -+ -+ dcfg.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dcfg); -+ dcfg.b.devspd = val; -+ dwc_write_reg32(&core_if->dev_if->dev_global_regs->dcfg, dcfg.d32); -+} -+ -+/** -+ * This function calculates the number of IN EPS -+ * using GHWCFG1 and GHWCFG2 registers values -+ * -+ * @param core_if Programming view of the DWC_otg controller -+ */ -+static uint32_t calc_num_in_eps(dwc_otg_core_if_t *core_if) -+{ -+ uint32_t num_in_eps = 0; -+ uint32_t num_eps = core_if->hwcfg2.b.num_dev_ep; -+ uint32_t hwcfg1 = core_if->hwcfg1.d32 >> 3; -+ uint32_t num_tx_fifos = core_if->hwcfg4.b.num_in_eps; -+ int i; -+ -+ -+ for(i = 0; i < num_eps; ++i) -+ { -+ if(!(hwcfg1 & 0x1)) -+ num_in_eps++; -+ -+ hwcfg1 >>= 2; -+ } -+ -+ if(core_if->hwcfg4.b.ded_fifo_en) { -+ num_in_eps = (num_in_eps > num_tx_fifos) ? num_tx_fifos : num_in_eps; -+ } -+ -+ return num_in_eps; -+} -+ -+ -+/** -+ * This function calculates the number of OUT EPS -+ * using GHWCFG1 and GHWCFG2 registers values -+ * -+ * @param core_if Programming view of the DWC_otg controller -+ */ -+static uint32_t calc_num_out_eps(dwc_otg_core_if_t *core_if) -+{ -+ uint32_t num_out_eps = 0; -+ uint32_t num_eps = core_if->hwcfg2.b.num_dev_ep; -+ uint32_t hwcfg1 = core_if->hwcfg1.d32 >> 2; -+ int i; -+ -+ for(i = 0; i < num_eps; ++i) -+ { -+ if(!(hwcfg1 & 0x2)) -+ num_out_eps++; -+ -+ hwcfg1 >>= 2; -+ } -+ return num_out_eps; -+} -+/** -+ * This function initializes the DWC_otg controller registers and -+ * prepares the core for device mode or host mode operation. -+ * -+ * @param core_if Programming view of the DWC_otg controller -+ * -+ */ -+void dwc_otg_core_init(dwc_otg_core_if_t *core_if) -+{ -+ int i = 0; -+ dwc_otg_core_global_regs_t *global_regs = -+ core_if->core_global_regs; -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ gahbcfg_data_t ahbcfg = { .d32 = 0 }; -+ gusbcfg_data_t usbcfg = { .d32 = 0 }; -+ gi2cctl_data_t i2cctl = { .d32 = 0 }; -+ -+ DWC_DEBUGPL(DBG_CILV, "dwc_otg_core_init(%p)\n", core_if); -+ -+ /* Common Initialization */ -+ -+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); -+ -+// usbcfg.b.tx_end_delay = 1; -+ /* Program the ULPI External VBUS bit if needed */ -+ usbcfg.b.ulpi_ext_vbus_drv = -+ (core_if->core_params->phy_ulpi_ext_vbus == DWC_PHY_ULPI_EXTERNAL_VBUS) ? 1 : 0; -+ -+ /* Set external TS Dline pulsing */ -+ usbcfg.b.term_sel_dl_pulse = (core_if->core_params->ts_dline == 1) ? 1 : 0; -+ dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32); -+ -+ -+ /* Reset the Controller */ -+ dwc_otg_core_reset(core_if); -+ -+ /* Initialize parameters from Hardware configuration registers. */ -+ dev_if->num_in_eps = calc_num_in_eps(core_if); -+ dev_if->num_out_eps = calc_num_out_eps(core_if); -+ -+ -+ DWC_DEBUGPL(DBG_CIL, "num_dev_perio_in_ep=%d\n", core_if->hwcfg4.b.num_dev_perio_in_ep); -+ -+ for (i=0; i < core_if->hwcfg4.b.num_dev_perio_in_ep; i++) -+ { -+ dev_if->perio_tx_fifo_size[i] = -+ dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]) >> 16; -+ DWC_DEBUGPL(DBG_CIL, "Periodic Tx FIFO SZ #%d=0x%0x\n", -+ i, dev_if->perio_tx_fifo_size[i]); -+ } -+ -+ for (i=0; i < core_if->hwcfg4.b.num_in_eps; i++) -+ { -+ dev_if->tx_fifo_size[i] = -+ dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]) >> 16; -+ DWC_DEBUGPL(DBG_CIL, "Tx FIFO SZ #%d=0x%0x\n", -+ i, dev_if->perio_tx_fifo_size[i]); -+ } -+ -+ core_if->total_fifo_size = core_if->hwcfg3.b.dfifo_depth; -+ core_if->rx_fifo_size = -+ dwc_read_reg32(&global_regs->grxfsiz); -+ core_if->nperio_tx_fifo_size = -+ dwc_read_reg32(&global_regs->gnptxfsiz) >> 16; -+ -+ DWC_DEBUGPL(DBG_CIL, "Total FIFO SZ=%d\n", core_if->total_fifo_size); -+ DWC_DEBUGPL(DBG_CIL, "Rx FIFO SZ=%d\n", core_if->rx_fifo_size); -+ DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO SZ=%d\n", core_if->nperio_tx_fifo_size); -+ -+ /* This programming sequence needs to happen in FS mode before any other -+ * programming occurs */ -+ if ((core_if->core_params->speed == DWC_SPEED_PARAM_FULL) && -+ (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) { -+ /* If FS mode with FS PHY */ -+ -+ /* core_init() is now called on every switch so only call the -+ * following for the first time through. */ -+ if (!core_if->phy_init_done) { -+ core_if->phy_init_done = 1; -+ DWC_DEBUGPL(DBG_CIL, "FS_PHY detected\n"); -+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); -+ usbcfg.b.physel = 1; -+ dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32); -+ -+ /* Reset after a PHY select */ -+ dwc_otg_core_reset(core_if); -+ } -+ -+ /* Program DCFG.DevSpd or HCFG.FSLSPclkSel to 48Mhz in FS. Also -+ * do this on HNP Dev/Host mode switches (done in dev_init and -+ * host_init). */ -+ if (dwc_otg_is_host_mode(core_if)) { -+ init_fslspclksel(core_if); -+ } -+ else { -+ init_devspd(core_if); -+ } -+ -+ if (core_if->core_params->i2c_enable) { -+ DWC_DEBUGPL(DBG_CIL, "FS_PHY Enabling I2c\n"); -+ /* Program GUSBCFG.OtgUtmifsSel to I2C */ -+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); -+ usbcfg.b.otgutmifssel = 1; -+ dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32); -+ -+ /* Program GI2CCTL.I2CEn */ -+ i2cctl.d32 = dwc_read_reg32(&global_regs->gi2cctl); -+ i2cctl.b.i2cdevaddr = 1; -+ i2cctl.b.i2cen = 0; -+ dwc_write_reg32 (&global_regs->gi2cctl, i2cctl.d32); -+ i2cctl.b.i2cen = 1; -+ dwc_write_reg32 (&global_regs->gi2cctl, i2cctl.d32); -+ } -+ -+ } /* endif speed == DWC_SPEED_PARAM_FULL */ -+ -+ else { -+ /* High speed PHY. */ -+ if (!core_if->phy_init_done) { -+ core_if->phy_init_done = 1; -+ /* HS PHY parameters. These parameters are preserved -+ * during soft reset so only program the first time. Do -+ * a soft reset immediately after setting phyif. */ -+ usbcfg.b.ulpi_utmi_sel = core_if->core_params->phy_type; -+ if (usbcfg.b.ulpi_utmi_sel == 1) { -+ /* ULPI interface */ -+ usbcfg.b.phyif = 0; -+ usbcfg.b.ddrsel = core_if->core_params->phy_ulpi_ddr; -+ } -+ else { -+ /* UTMI+ interface */ -+ if (core_if->core_params->phy_utmi_width == 16) { -+ usbcfg.b.phyif = 1; -+ } -+ else { -+ usbcfg.b.phyif = 0; -+ } -+ } -+ -+ dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); -+ -+ /* Reset after setting the PHY parameters */ -+ dwc_otg_core_reset(core_if); -+ } -+ } -+ -+ if ((core_if->hwcfg2.b.hs_phy_type == 2) && -+ (core_if->hwcfg2.b.fs_phy_type == 1) && -+ (core_if->core_params->ulpi_fs_ls)) { -+ DWC_DEBUGPL(DBG_CIL, "Setting ULPI FSLS\n"); -+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); -+ usbcfg.b.ulpi_fsls = 1; -+ usbcfg.b.ulpi_clk_sus_m = 1; -+ dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); -+ } -+ else { -+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); -+ usbcfg.b.ulpi_fsls = 0; -+ usbcfg.b.ulpi_clk_sus_m = 0; -+ dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); -+ } -+ -+ /* Program the GAHBCFG Register.*/ -+ switch (core_if->hwcfg2.b.architecture) { -+ -+ case DWC_SLAVE_ONLY_ARCH: -+ DWC_DEBUGPL(DBG_CIL, "Slave Only Mode\n"); -+ ahbcfg.b.nptxfemplvl_txfemplvl = DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY; -+ ahbcfg.b.ptxfemplvl = DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY; -+ core_if->dma_enable = 0; -+ core_if->dma_desc_enable = 0; -+ break; -+ -+ case DWC_EXT_DMA_ARCH: -+ DWC_DEBUGPL(DBG_CIL, "External DMA Mode\n"); -+ ahbcfg.b.hburstlen = core_if->core_params->dma_burst_size; -+ core_if->dma_enable = (core_if->core_params->dma_enable != 0); -+ core_if->dma_desc_enable = (core_if->core_params->dma_desc_enable != 0); -+ break; -+ -+ case DWC_INT_DMA_ARCH: -+ DWC_DEBUGPL(DBG_CIL, "Internal DMA Mode\n"); -+ ahbcfg.b.hburstlen = DWC_GAHBCFG_INT_DMA_BURST_INCR; -+ core_if->dma_enable = (core_if->core_params->dma_enable != 0); -+ core_if->dma_desc_enable = (core_if->core_params->dma_desc_enable != 0); -+ break; -+ -+ } -+ ahbcfg.b.dmaenable = core_if->dma_enable; -+ dwc_write_reg32(&global_regs->gahbcfg, ahbcfg.d32); -+ -+ core_if->en_multiple_tx_fifo = core_if->hwcfg4.b.ded_fifo_en; -+ -+ core_if->pti_enh_enable = core_if->core_params->pti_enable != 0; -+ core_if->multiproc_int_enable = core_if->core_params->mpi_enable; -+ DWC_PRINT("Periodic Transfer Interrupt Enhancement - %s\n", ((core_if->pti_enh_enable) ? "enabled": "disabled")); -+ DWC_PRINT("Multiprocessor Interrupt Enhancement - %s\n", ((core_if->multiproc_int_enable) ? "enabled": "disabled")); -+ -+ /* -+ * Program the GUSBCFG register. -+ */ -+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); -+ -+ switch (core_if->hwcfg2.b.op_mode) { -+ case DWC_MODE_HNP_SRP_CAPABLE: -+ usbcfg.b.hnpcap = (core_if->core_params->otg_cap == -+ DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE); -+ usbcfg.b.srpcap = (core_if->core_params->otg_cap != -+ DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); -+ break; -+ -+ case DWC_MODE_SRP_ONLY_CAPABLE: -+ usbcfg.b.hnpcap = 0; -+ usbcfg.b.srpcap = (core_if->core_params->otg_cap != -+ DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); -+ break; -+ -+ case DWC_MODE_NO_HNP_SRP_CAPABLE: -+ usbcfg.b.hnpcap = 0; -+ usbcfg.b.srpcap = 0; -+ break; -+ -+ case DWC_MODE_SRP_CAPABLE_DEVICE: -+ usbcfg.b.hnpcap = 0; -+ usbcfg.b.srpcap = (core_if->core_params->otg_cap != -+ DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); -+ break; -+ -+ case DWC_MODE_NO_SRP_CAPABLE_DEVICE: -+ usbcfg.b.hnpcap = 0; -+ usbcfg.b.srpcap = 0; -+ break; -+ -+ case DWC_MODE_SRP_CAPABLE_HOST: -+ usbcfg.b.hnpcap = 0; -+ usbcfg.b.srpcap = (core_if->core_params->otg_cap != -+ DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); -+ break; -+ -+ case DWC_MODE_NO_SRP_CAPABLE_HOST: -+ usbcfg.b.hnpcap = 0; -+ usbcfg.b.srpcap = 0; -+ break; -+ } -+ -+ dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); -+ -+ /* Enable common interrupts */ -+ dwc_otg_enable_common_interrupts(core_if); -+ -+ /* Do device or host intialization based on mode during PCD -+ * and HCD initialization */ -+ if (dwc_otg_is_host_mode(core_if)) { -+ DWC_DEBUGPL(DBG_ANY, "Host Mode\n"); -+ core_if->op_state = A_HOST; -+ } -+ else { -+ DWC_DEBUGPL(DBG_ANY, "Device Mode\n"); -+ core_if->op_state = B_PERIPHERAL; -+#ifdef DWC_DEVICE_ONLY -+ dwc_otg_core_dev_init(core_if); -+#endif -+ } -+} -+ -+ -+/** -+ * This function enables the Device mode interrupts. -+ * -+ * @param core_if Programming view of DWC_otg controller -+ */ -+void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t *core_if) -+{ -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ dwc_otg_core_global_regs_t *global_regs = -+ core_if->core_global_regs; -+ -+ DWC_DEBUGPL(DBG_CIL, "%s()\n", __func__); -+ -+ /* Disable all interrupts. */ -+ dwc_write_reg32(&global_regs->gintmsk, 0); -+ -+ /* Clear any pending interrupts */ -+ dwc_write_reg32(&global_regs->gintsts, 0xFFFFFFFF); -+ -+ /* Enable the common interrupts */ -+ dwc_otg_enable_common_interrupts(core_if); -+ -+ /* Enable interrupts */ -+ intr_mask.b.usbreset = 1; -+ intr_mask.b.enumdone = 1; -+ -+ if(!core_if->multiproc_int_enable) { -+ intr_mask.b.inepintr = 1; -+ intr_mask.b.outepintr = 1; -+ } -+ -+ intr_mask.b.erlysuspend = 1; -+ -+ if(core_if->en_multiple_tx_fifo == 0) { -+ intr_mask.b.epmismatch = 1; -+ } -+ -+ -+#ifdef DWC_EN_ISOC -+ if(core_if->dma_enable) { -+ if(core_if->dma_desc_enable == 0) { -+ if(core_if->pti_enh_enable) { -+ dctl_data_t dctl = { .d32 = 0 }; -+ dctl.b.ifrmnum = 1; -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32); -+ } else { -+ intr_mask.b.incomplisoin = 1; -+ intr_mask.b.incomplisoout = 1; -+ } -+ } -+ } else { -+ intr_mask.b.incomplisoin = 1; -+ intr_mask.b.incomplisoout = 1; -+ } -+#endif // DWC_EN_ISOC -+ -+/** @todo NGS: Should this be a module parameter? */ -+#ifdef USE_PERIODIC_EP -+ intr_mask.b.isooutdrop = 1; -+ intr_mask.b.eopframe = 1; -+ intr_mask.b.incomplisoin = 1; -+ intr_mask.b.incomplisoout = 1; -+#endif -+ -+ dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32); -+ -+ DWC_DEBUGPL(DBG_CIL, "%s() gintmsk=%0x\n", __func__, -+ dwc_read_reg32(&global_regs->gintmsk)); -+} -+ -+/** -+ * This function initializes the DWC_otg controller registers for -+ * device mode. -+ * -+ * @param core_if Programming view of DWC_otg controller -+ * -+ */ -+void dwc_otg_core_dev_init(dwc_otg_core_if_t *core_if) -+{ -+ int i,size; -+ u_int32_t *default_value_array; -+ -+ dwc_otg_core_global_regs_t *global_regs = -+ core_if->core_global_regs; -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ dwc_otg_core_params_t *params = core_if->core_params; -+ dcfg_data_t dcfg = { .d32 = 0}; -+ grstctl_t resetctl = { .d32 = 0 }; -+ uint32_t rx_fifo_size; -+ fifosize_data_t nptxfifosize; -+ fifosize_data_t txfifosize; -+ dthrctl_data_t dthrctl; -+ -+ /* Restart the Phy Clock */ -+ dwc_write_reg32(core_if->pcgcctl, 0); -+ -+ /* Device configuration register */ -+ init_devspd(core_if); -+ dcfg.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dcfg); -+ dcfg.b.descdma = (core_if->dma_desc_enable) ? 1 : 0; -+ dcfg.b.perfrint = DWC_DCFG_FRAME_INTERVAL_80; -+ -+ dwc_write_reg32(&dev_if->dev_global_regs->dcfg, dcfg.d32); -+ -+ /* Configure data FIFO sizes */ -+ if (core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) { -+ DWC_DEBUGPL(DBG_CIL, "Total FIFO Size=%d\n", core_if->total_fifo_size); -+ DWC_DEBUGPL(DBG_CIL, "Rx FIFO Size=%d\n", params->dev_rx_fifo_size); -+ DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO Size=%d\n", params->dev_nperio_tx_fifo_size); -+ -+ /* Rx FIFO */ -+ DWC_DEBUGPL(DBG_CIL, "initial grxfsiz=%08x\n", -+ dwc_read_reg32(&global_regs->grxfsiz)); -+ -+ rx_fifo_size = params->dev_rx_fifo_size; -+ dwc_write_reg32(&global_regs->grxfsiz, rx_fifo_size); -+ -+ DWC_DEBUGPL(DBG_CIL, "new grxfsiz=%08x\n", -+ dwc_read_reg32(&global_regs->grxfsiz)); -+ -+ /** Set Periodic Tx FIFO Mask all bits 0 */ -+ core_if->p_tx_msk = 0; -+ -+ /** Set Tx FIFO Mask all bits 0 */ -+ core_if->tx_msk = 0; -+ -+ /* Non-periodic Tx FIFO */ -+ DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n", -+ dwc_read_reg32(&global_regs->gnptxfsiz)); -+ -+ nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size; -+ nptxfifosize.b.startaddr = params->dev_rx_fifo_size; -+ -+ dwc_write_reg32(&global_regs->gnptxfsiz, nptxfifosize.d32); -+ -+ DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n", -+ dwc_read_reg32(&global_regs->gnptxfsiz)); -+ -+ txfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth; -+ if(core_if->en_multiple_tx_fifo == 0) { -+ //core_if->hwcfg4.b.ded_fifo_en==0 -+ -+ /**@todo NGS: Fix Periodic FIFO Sizing! */ -+ /* -+ * Periodic Tx FIFOs These FIFOs are numbered from 1 to 15. -+ * Indexes of the FIFO size module parameters in the -+ * dev_perio_tx_fifo_size array and the FIFO size registers in -+ * the dptxfsiz array run from 0 to 14. -+ */ -+ /** @todo Finish debug of this */ -+ size=core_if->hwcfg4.b.num_dev_perio_in_ep; -+ default_value_array=params->dev_perio_tx_fifo_size; -+ -+ } -+ else { -+ //core_if->hwcfg4.b.ded_fifo_en==1 -+ /* -+ * Tx FIFOs These FIFOs are numbered from 1 to 15. -+ * Indexes of the FIFO size module parameters in the -+ * dev_tx_fifo_size array and the FIFO size registers in -+ * the dptxfsiz_dieptxf array run from 0 to 14. -+ */ -+ -+ size=core_if->hwcfg4.b.num_in_eps; -+ default_value_array=params->dev_tx_fifo_size; -+ -+ } -+ for (i=0; i < size; i++) -+ { -+ -+ txfifosize.b.depth = default_value_array[i]; -+ DWC_DEBUGPL(DBG_CIL, "initial dptxfsiz_dieptxf[%d]=%08x\n", i, -+ dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i])); -+ dwc_write_reg32(&global_regs->dptxfsiz_dieptxf[i], -+ txfifosize.d32); -+ DWC_DEBUGPL(DBG_CIL, "new dptxfsiz_dieptxf[%d]=%08x\n", i, -+ dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i])); -+ txfifosize.b.startaddr += txfifosize.b.depth; -+ } -+ } -+ /* Flush the FIFOs */ -+ dwc_otg_flush_tx_fifo(core_if, 0x10); /* all Tx FIFOs */ -+ dwc_otg_flush_rx_fifo(core_if); -+ -+ /* Flush the Learning Queue. */ -+ resetctl.b.intknqflsh = 1; -+ dwc_write_reg32(&core_if->core_global_regs->grstctl, resetctl.d32); -+ -+ /* Clear all pending Device Interrupts */ -+ -+ if(core_if->multiproc_int_enable) { -+ } -+ -+ /** @todo - if the condition needed to be checked -+ * or in any case all pending interrutps should be cleared? -+ */ -+ if(core_if->multiproc_int_enable) { -+ for(i = 0; i < core_if->dev_if->num_in_eps; ++i) { -+ dwc_write_reg32(&dev_if->dev_global_regs->diepeachintmsk[i], 0); -+ } -+ -+ for(i = 0; i < core_if->dev_if->num_out_eps; ++i) { -+ dwc_write_reg32(&dev_if->dev_global_regs->doepeachintmsk[i], 0); -+ } -+ -+ dwc_write_reg32(&dev_if->dev_global_regs->deachint, 0xFFFFFFFF); -+ dwc_write_reg32(&dev_if->dev_global_regs->deachintmsk, 0); -+ } else { -+ dwc_write_reg32(&dev_if->dev_global_regs->diepmsk, 0); -+ dwc_write_reg32(&dev_if->dev_global_regs->doepmsk, 0); -+ dwc_write_reg32(&dev_if->dev_global_regs->daint, 0xFFFFFFFF); -+ dwc_write_reg32(&dev_if->dev_global_regs->daintmsk, 0); -+ } -+ -+ for (i=0; i <= dev_if->num_in_eps; i++) -+ { -+ depctl_data_t depctl; -+ depctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[i]->diepctl); -+ if (depctl.b.epena) { -+ depctl.d32 = 0; -+ depctl.b.epdis = 1; -+ depctl.b.snak = 1; -+ } -+ else { -+ depctl.d32 = 0; -+ } -+ -+ dwc_write_reg32(&dev_if->in_ep_regs[i]->diepctl, depctl.d32); -+ -+ -+ dwc_write_reg32(&dev_if->in_ep_regs[i]->dieptsiz, 0); -+ dwc_write_reg32(&dev_if->in_ep_regs[i]->diepdma, 0); -+ dwc_write_reg32(&dev_if->in_ep_regs[i]->diepint, 0xFF); -+ } -+ -+ for (i=0; i <= dev_if->num_out_eps; i++) -+ { -+ depctl_data_t depctl; -+ depctl.d32 = dwc_read_reg32(&dev_if->out_ep_regs[i]->doepctl); -+ if (depctl.b.epena) { -+ depctl.d32 = 0; -+ depctl.b.epdis = 1; -+ depctl.b.snak = 1; -+ } -+ else { -+ depctl.d32 = 0; -+ } -+ -+ dwc_write_reg32(&dev_if->out_ep_regs[i]->doepctl, depctl.d32); -+ -+ dwc_write_reg32(&dev_if->out_ep_regs[i]->doeptsiz, 0); -+ dwc_write_reg32(&dev_if->out_ep_regs[i]->doepdma, 0); -+ dwc_write_reg32(&dev_if->out_ep_regs[i]->doepint, 0xFF); -+ } -+ -+ if(core_if->en_multiple_tx_fifo && core_if->dma_enable) { -+ dev_if->non_iso_tx_thr_en = params->thr_ctl & 0x1; -+ dev_if->iso_tx_thr_en = (params->thr_ctl >> 1) & 0x1; -+ dev_if->rx_thr_en = (params->thr_ctl >> 2) & 0x1; -+ -+ dev_if->rx_thr_length = params->rx_thr_length; -+ dev_if->tx_thr_length = params->tx_thr_length; -+ -+ dev_if->setup_desc_index = 0; -+ -+ dthrctl.d32 = 0; -+ dthrctl.b.non_iso_thr_en = dev_if->non_iso_tx_thr_en; -+ dthrctl.b.iso_thr_en = dev_if->iso_tx_thr_en; -+ dthrctl.b.tx_thr_len = dev_if->tx_thr_length; -+ dthrctl.b.rx_thr_en = dev_if->rx_thr_en; -+ dthrctl.b.rx_thr_len = dev_if->rx_thr_length; -+ -+ dwc_write_reg32(&dev_if->dev_global_regs->dtknqr3_dthrctl, dthrctl.d32); -+ -+ DWC_DEBUGPL(DBG_CIL, "Non ISO Tx Thr - %d\nISO Tx Thr - %d\nRx Thr - %d\nTx Thr Len - %d\nRx Thr Len - %d\n", -+ dthrctl.b.non_iso_thr_en, dthrctl.b.iso_thr_en, dthrctl.b.rx_thr_en, dthrctl.b.tx_thr_len, dthrctl.b.rx_thr_len); -+ -+ } -+ -+ dwc_otg_enable_device_interrupts(core_if); -+ -+ { -+ diepmsk_data_t msk = { .d32 = 0 }; -+ msk.b.txfifoundrn = 1; -+ if(core_if->multiproc_int_enable) { -+ dwc_modify_reg32(&dev_if->dev_global_regs->diepeachintmsk[0], msk.d32, msk.d32); -+ } else { -+ dwc_modify_reg32(&dev_if->dev_global_regs->diepmsk, msk.d32, msk.d32); -+ } -+ } -+ -+ -+ if(core_if->multiproc_int_enable) { -+ /* Set NAK on Babble */ -+ dctl_data_t dctl = { .d32 = 0}; -+ dctl.b.nakonbble = 1; -+ dwc_modify_reg32(&dev_if->dev_global_regs->dctl, 0, dctl.d32); -+ } -+} -+ -+/** -+ * This function enables the Host mode interrupts. -+ * -+ * @param core_if Programming view of DWC_otg controller -+ */ -+void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t *core_if) -+{ -+ dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; -+ gintmsk_data_t intr_mask = { .d32 = 0 }; -+ -+ DWC_DEBUGPL(DBG_CIL, "%s()\n", __func__); -+ -+ /* Disable all interrupts. */ -+ dwc_write_reg32(&global_regs->gintmsk, 0); -+ -+ /* Clear any pending interrupts. */ -+ dwc_write_reg32(&global_regs->gintsts, 0xFFFFFFFF); -+ -+ /* Enable the common interrupts */ -+ dwc_otg_enable_common_interrupts(core_if); -+ -+ /* -+ * Enable host mode interrupts without disturbing common -+ * interrupts. -+ */ -+ intr_mask.b.sofintr = 1; -+ intr_mask.b.portintr = 1; -+ intr_mask.b.hcintr = 1; -+ -+ dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32); -+} -+ -+/** -+ * This function disables the Host Mode interrupts. -+ * -+ * @param core_if Programming view of DWC_otg controller -+ */ -+void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t *core_if) -+{ -+ dwc_otg_core_global_regs_t *global_regs = -+ core_if->core_global_regs; -+ gintmsk_data_t intr_mask = { .d32 = 0 }; -+ -+ DWC_DEBUGPL(DBG_CILV, "%s()\n", __func__); -+ -+ /* -+ * Disable host mode interrupts without disturbing common -+ * interrupts. -+ */ -+ intr_mask.b.sofintr = 1; -+ intr_mask.b.portintr = 1; -+ intr_mask.b.hcintr = 1; -+ intr_mask.b.ptxfempty = 1; -+ intr_mask.b.nptxfempty = 1; -+ -+ dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, 0); -+} -+ -+/** -+ * This function initializes the DWC_otg controller registers for -+ * host mode. -+ * -+ * This function flushes the Tx and Rx FIFOs and it flushes any entries in the -+ * request queues. Host channels are reset to ensure that they are ready for -+ * performing transfers. -+ * -+ * @param core_if Programming view of DWC_otg controller -+ * -+ */ -+void dwc_otg_core_host_init(dwc_otg_core_if_t *core_if) -+{ -+ dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; -+ dwc_otg_host_if_t *host_if = core_if->host_if; -+ dwc_otg_core_params_t *params = core_if->core_params; -+ hprt0_data_t hprt0 = { .d32 = 0 }; -+ fifosize_data_t nptxfifosize; -+ fifosize_data_t ptxfifosize; -+ int i; -+ hcchar_data_t hcchar; -+ hcfg_data_t hcfg; -+ dwc_otg_hc_regs_t *hc_regs; -+ int num_channels; -+ gotgctl_data_t gotgctl = { .d32 = 0 }; -+ -+ DWC_DEBUGPL(DBG_CILV,"%s(%p)\n", __func__, core_if); -+ -+ /* Restart the Phy Clock */ -+ dwc_write_reg32(core_if->pcgcctl, 0); -+ -+ /* Initialize Host Configuration Register */ -+ init_fslspclksel(core_if); -+ if (core_if->core_params->speed == DWC_SPEED_PARAM_FULL) -+ { -+ hcfg.d32 = dwc_read_reg32(&host_if->host_global_regs->hcfg); -+ hcfg.b.fslssupp = 1; -+ dwc_write_reg32(&host_if->host_global_regs->hcfg, hcfg.d32); -+ } -+ -+ /* Configure data FIFO sizes */ -+ if (core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) { -+ DWC_DEBUGPL(DBG_CIL,"Total FIFO Size=%d\n", core_if->total_fifo_size); -+ DWC_DEBUGPL(DBG_CIL,"Rx FIFO Size=%d\n", params->host_rx_fifo_size); -+ DWC_DEBUGPL(DBG_CIL,"NP Tx FIFO Size=%d\n", params->host_nperio_tx_fifo_size); -+ DWC_DEBUGPL(DBG_CIL,"P Tx FIFO Size=%d\n", params->host_perio_tx_fifo_size); -+ -+ /* Rx FIFO */ -+ DWC_DEBUGPL(DBG_CIL,"initial grxfsiz=%08x\n", dwc_read_reg32(&global_regs->grxfsiz)); -+ dwc_write_reg32(&global_regs->grxfsiz, params->host_rx_fifo_size); -+ DWC_DEBUGPL(DBG_CIL,"new grxfsiz=%08x\n", dwc_read_reg32(&global_regs->grxfsiz)); -+ -+ /* Non-periodic Tx FIFO */ -+ DWC_DEBUGPL(DBG_CIL,"initial gnptxfsiz=%08x\n", dwc_read_reg32(&global_regs->gnptxfsiz)); -+ nptxfifosize.b.depth = params->host_nperio_tx_fifo_size; -+ nptxfifosize.b.startaddr = params->host_rx_fifo_size; -+ dwc_write_reg32(&global_regs->gnptxfsiz, nptxfifosize.d32); -+ DWC_DEBUGPL(DBG_CIL,"new gnptxfsiz=%08x\n", dwc_read_reg32(&global_regs->gnptxfsiz)); -+ -+ /* Periodic Tx FIFO */ -+ DWC_DEBUGPL(DBG_CIL,"initial hptxfsiz=%08x\n", dwc_read_reg32(&global_regs->hptxfsiz)); -+ ptxfifosize.b.depth = params->host_perio_tx_fifo_size; -+ ptxfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth; -+ dwc_write_reg32(&global_regs->hptxfsiz, ptxfifosize.d32); -+ DWC_DEBUGPL(DBG_CIL,"new hptxfsiz=%08x\n", dwc_read_reg32(&global_regs->hptxfsiz)); -+ } -+ -+ /* Clear Host Set HNP Enable in the OTG Control Register */ -+ gotgctl.b.hstsethnpen = 1; -+ dwc_modify_reg32(&global_regs->gotgctl, gotgctl.d32, 0); -+ -+ /* Make sure the FIFOs are flushed. */ -+ dwc_otg_flush_tx_fifo(core_if, 0x10 /* all Tx FIFOs */); -+ dwc_otg_flush_rx_fifo(core_if); -+ -+ /* Flush out any leftover queued requests. */ -+ num_channels = core_if->core_params->host_channels; -+ for (i = 0; i < num_channels; i++) -+ { -+ hc_regs = core_if->host_if->hc_regs[i]; -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hcchar.b.chen = 0; -+ hcchar.b.chdis = 1; -+ hcchar.b.epdir = 0; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ } -+ -+ /* Halt all channels to put them into a known state. */ -+ for (i = 0; i < num_channels; i++) -+ { -+ int count = 0; -+ hc_regs = core_if->host_if->hc_regs[i]; -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hcchar.b.chen = 1; -+ hcchar.b.chdis = 1; -+ hcchar.b.epdir = 0; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ DWC_DEBUGPL(DBG_HCDV, "%s: Halt channel %d\n", __func__, i); -+ do { -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ if (++count > 1000) -+ { -+ DWC_ERROR("%s: Unable to clear halt on channel %d\n", -+ __func__, i); -+ break; -+ } -+ } -+ while (hcchar.b.chen); -+ } -+ -+ /* Turn on the vbus power. */ -+ DWC_PRINT("Init: Port Power? op_state=%d\n", core_if->op_state); -+ if (core_if->op_state == A_HOST) { -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ DWC_PRINT("Init: Power Port (%d)\n", hprt0.b.prtpwr); -+ if (hprt0.b.prtpwr == 0) { -+ hprt0.b.prtpwr = 1; -+ dwc_write_reg32(host_if->hprt0, hprt0.d32); -+ } -+ } -+ -+ dwc_otg_enable_host_interrupts(core_if); -+} -+ -+/** -+ * Prepares a host channel for transferring packets to/from a specific -+ * endpoint. The HCCHARn register is set up with the characteristics specified -+ * in _hc. Host channel interrupts that may need to be serviced while this -+ * transfer is in progress are enabled. -+ * -+ * @param core_if Programming view of DWC_otg controller -+ * @param hc Information needed to initialize the host channel -+ */ -+void dwc_otg_hc_init(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) -+{ -+ uint32_t intr_enable; -+ hcintmsk_data_t hc_intr_mask; -+ gintmsk_data_t gintmsk = { .d32 = 0 }; -+ hcchar_data_t hcchar; -+ hcsplt_data_t hcsplt; -+ -+ uint8_t hc_num = hc->hc_num; -+ dwc_otg_host_if_t *host_if = core_if->host_if; -+ dwc_otg_hc_regs_t *hc_regs = host_if->hc_regs[hc_num]; -+ -+ /* Clear old interrupt conditions for this host channel. */ -+ hc_intr_mask.d32 = 0xFFFFFFFF; -+ hc_intr_mask.b.reserved = 0; -+ dwc_write_reg32(&hc_regs->hcint, hc_intr_mask.d32); -+ -+ /* Enable channel interrupts required for this transfer. */ -+ hc_intr_mask.d32 = 0; -+ hc_intr_mask.b.chhltd = 1; -+ if (core_if->dma_enable) { -+ hc_intr_mask.b.ahberr = 1; -+ if (hc->error_state && !hc->do_split && -+ hc->ep_type != DWC_OTG_EP_TYPE_ISOC) { -+ hc_intr_mask.b.ack = 1; -+ if (hc->ep_is_in) { -+ hc_intr_mask.b.datatglerr = 1; -+ if (hc->ep_type != DWC_OTG_EP_TYPE_INTR) { -+ hc_intr_mask.b.nak = 1; -+ } -+ } -+ } -+ } -+ else { -+ switch (hc->ep_type) { -+ case DWC_OTG_EP_TYPE_CONTROL: -+ case DWC_OTG_EP_TYPE_BULK: -+ hc_intr_mask.b.xfercompl = 1; -+ hc_intr_mask.b.stall = 1; -+ hc_intr_mask.b.xacterr = 1; -+ hc_intr_mask.b.datatglerr = 1; -+ if (hc->ep_is_in) { -+ hc_intr_mask.b.bblerr = 1; -+ } -+ else { -+ hc_intr_mask.b.nak = 1; -+ hc_intr_mask.b.nyet = 1; -+ if (hc->do_ping) { -+ hc_intr_mask.b.ack = 1; -+ } -+ } -+ -+ if (hc->do_split) { -+ hc_intr_mask.b.nak = 1; -+ if (hc->complete_split) { -+ hc_intr_mask.b.nyet = 1; -+ } -+ else { -+ hc_intr_mask.b.ack = 1; -+ } -+ } -+ -+ if (hc->error_state) { -+ hc_intr_mask.b.ack = 1; -+ } -+ break; -+ case DWC_OTG_EP_TYPE_INTR: -+ hc_intr_mask.b.xfercompl = 1; -+ hc_intr_mask.b.nak = 1; -+ hc_intr_mask.b.stall = 1; -+ hc_intr_mask.b.xacterr = 1; -+ hc_intr_mask.b.datatglerr = 1; -+ hc_intr_mask.b.frmovrun = 1; -+ -+ if (hc->ep_is_in) { -+ hc_intr_mask.b.bblerr = 1; -+ } -+ if (hc->error_state) { -+ hc_intr_mask.b.ack = 1; -+ } -+ if (hc->do_split) { -+ if (hc->complete_split) { -+ hc_intr_mask.b.nyet = 1; -+ } -+ else { -+ hc_intr_mask.b.ack = 1; -+ } -+ } -+ break; -+ case DWC_OTG_EP_TYPE_ISOC: -+ hc_intr_mask.b.xfercompl = 1; -+ hc_intr_mask.b.frmovrun = 1; -+ hc_intr_mask.b.ack = 1; -+ -+ if (hc->ep_is_in) { -+ hc_intr_mask.b.xacterr = 1; -+ hc_intr_mask.b.bblerr = 1; -+ } -+ break; -+ } -+ } -+ dwc_write_reg32(&hc_regs->hcintmsk, hc_intr_mask.d32); -+ -+// if(hc->ep_type == DWC_OTG_EP_TYPE_BULK && !hc->ep_is_in) -+// hc->max_packet = 512; -+ /* Enable the top level host channel interrupt. */ -+ intr_enable = (1 << hc_num); -+ dwc_modify_reg32(&host_if->host_global_regs->haintmsk, 0, intr_enable); -+ -+ /* Make sure host channel interrupts are enabled. */ -+ gintmsk.b.hcintr = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gintmsk, 0, gintmsk.d32); -+ -+ /* -+ * Program the HCCHARn register with the endpoint characteristics for -+ * the current transfer. -+ */ -+ hcchar.d32 = 0; -+ hcchar.b.devaddr = hc->dev_addr; -+ hcchar.b.epnum = hc->ep_num; -+ hcchar.b.epdir = hc->ep_is_in; -+ hcchar.b.lspddev = (hc->speed == DWC_OTG_EP_SPEED_LOW); -+ hcchar.b.eptype = hc->ep_type; -+ hcchar.b.mps = hc->max_packet; -+ -+ dwc_write_reg32(&host_if->hc_regs[hc_num]->hcchar, hcchar.d32); -+ -+ DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); -+ DWC_DEBUGPL(DBG_HCDV, " Dev Addr: %d\n", hcchar.b.devaddr); -+ DWC_DEBUGPL(DBG_HCDV, " Ep Num: %d\n", hcchar.b.epnum); -+ DWC_DEBUGPL(DBG_HCDV, " Is In: %d\n", hcchar.b.epdir); -+ DWC_DEBUGPL(DBG_HCDV, " Is Low Speed: %d\n", hcchar.b.lspddev); -+ DWC_DEBUGPL(DBG_HCDV, " Ep Type: %d\n", hcchar.b.eptype); -+ DWC_DEBUGPL(DBG_HCDV, " Max Pkt: %d\n", hcchar.b.mps); -+ DWC_DEBUGPL(DBG_HCDV, " Multi Cnt: %d\n", hcchar.b.multicnt); -+ -+ /* -+ * Program the HCSPLIT register for SPLITs -+ */ -+ hcsplt.d32 = 0; -+ if (hc->do_split) { -+ DWC_DEBUGPL(DBG_HCDV, "Programming HC %d with split --> %s\n", hc->hc_num, -+ hc->complete_split ? "CSPLIT" : "SSPLIT"); -+ hcsplt.b.compsplt = hc->complete_split; -+ hcsplt.b.xactpos = hc->xact_pos; -+ hcsplt.b.hubaddr = hc->hub_addr; -+ hcsplt.b.prtaddr = hc->port_addr; -+ DWC_DEBUGPL(DBG_HCDV, " comp split %d\n", hc->complete_split); -+ DWC_DEBUGPL(DBG_HCDV, " xact pos %d\n", hc->xact_pos); -+ DWC_DEBUGPL(DBG_HCDV, " hub addr %d\n", hc->hub_addr); -+ DWC_DEBUGPL(DBG_HCDV, " port addr %d\n", hc->port_addr); -+ DWC_DEBUGPL(DBG_HCDV, " is_in %d\n", hc->ep_is_in); -+ DWC_DEBUGPL(DBG_HCDV, " Max Pkt: %d\n", hcchar.b.mps); -+ DWC_DEBUGPL(DBG_HCDV, " xferlen: %d\n", hc->xfer_len); -+ } -+ dwc_write_reg32(&host_if->hc_regs[hc_num]->hcsplt, hcsplt.d32); -+ -+} -+ -+/** -+ * Attempts to halt a host channel. This function should only be called in -+ * Slave mode or to abort a transfer in either Slave mode or DMA mode. Under -+ * normal circumstances in DMA mode, the controller halts the channel when the -+ * transfer is complete or a condition occurs that requires application -+ * intervention. -+ * -+ * In slave mode, checks for a free request queue entry, then sets the Channel -+ * Enable and Channel Disable bits of the Host Channel Characteristics -+ * register of the specified channel to intiate the halt. If there is no free -+ * request queue entry, sets only the Channel Disable bit of the HCCHARn -+ * register to flush requests for this channel. In the latter case, sets a -+ * flag to indicate that the host channel needs to be halted when a request -+ * queue slot is open. -+ * -+ * In DMA mode, always sets the Channel Enable and Channel Disable bits of the -+ * HCCHARn register. The controller ensures there is space in the request -+ * queue before submitting the halt request. -+ * -+ * Some time may elapse before the core flushes any posted requests for this -+ * host channel and halts. The Channel Halted interrupt handler completes the -+ * deactivation of the host channel. -+ * -+ * @param core_if Controller register interface. -+ * @param hc Host channel to halt. -+ * @param halt_status Reason for halting the channel. -+ */ -+void dwc_otg_hc_halt(dwc_otg_core_if_t *core_if, -+ dwc_hc_t *hc, -+ dwc_otg_halt_status_e halt_status) -+{ -+ gnptxsts_data_t nptxsts; -+ hptxsts_data_t hptxsts; -+ hcchar_data_t hcchar; -+ dwc_otg_hc_regs_t *hc_regs; -+ dwc_otg_core_global_regs_t *global_regs; -+ dwc_otg_host_global_regs_t *host_global_regs; -+ -+ hc_regs = core_if->host_if->hc_regs[hc->hc_num]; -+ global_regs = core_if->core_global_regs; -+ host_global_regs = core_if->host_if->host_global_regs; -+ -+ WARN_ON(halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS); -+ -+ if (halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE || -+ halt_status == DWC_OTG_HC_XFER_AHB_ERR) { -+ /* -+ * Disable all channel interrupts except Ch Halted. The QTD -+ * and QH state associated with this transfer has been cleared -+ * (in the case of URB_DEQUEUE), so the channel needs to be -+ * shut down carefully to prevent crashes. -+ */ -+ hcintmsk_data_t hcintmsk; -+ hcintmsk.d32 = 0; -+ hcintmsk.b.chhltd = 1; -+ dwc_write_reg32(&hc_regs->hcintmsk, hcintmsk.d32); -+ -+ /* -+ * Make sure no other interrupts besides halt are currently -+ * pending. Handling another interrupt could cause a crash due -+ * to the QTD and QH state. -+ */ -+ dwc_write_reg32(&hc_regs->hcint, ~hcintmsk.d32); -+ -+ /* -+ * Make sure the halt status is set to URB_DEQUEUE or AHB_ERR -+ * even if the channel was already halted for some other -+ * reason. -+ */ -+ hc->halt_status = halt_status; -+ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ if (hcchar.b.chen == 0) { -+ /* -+ * The channel is either already halted or it hasn't -+ * started yet. In DMA mode, the transfer may halt if -+ * it finishes normally or a condition occurs that -+ * requires driver intervention. Don't want to halt -+ * the channel again. In either Slave or DMA mode, -+ * it's possible that the transfer has been assigned -+ * to a channel, but not started yet when an URB is -+ * dequeued. Don't want to halt a channel that hasn't -+ * started yet. -+ */ -+ return; -+ } -+ } -+ -+ if (hc->halt_pending) { -+ /* -+ * A halt has already been issued for this channel. This might -+ * happen when a transfer is aborted by a higher level in -+ * the stack. -+ */ -+#ifdef DEBUG -+ DWC_PRINT("*** %s: Channel %d, _hc->halt_pending already set ***\n", -+ __func__, hc->hc_num); -+ -+/* dwc_otg_dump_global_registers(core_if); */ -+/* dwc_otg_dump_host_registers(core_if); */ -+#endif -+ return; -+ } -+ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hcchar.b.chen = 1; -+ hcchar.b.chdis = 1; -+ -+ if (!core_if->dma_enable) { -+ /* Check for space in the request queue to issue the halt. */ -+ if (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL || -+ hc->ep_type == DWC_OTG_EP_TYPE_BULK) { -+ nptxsts.d32 = dwc_read_reg32(&global_regs->gnptxsts); -+ if (nptxsts.b.nptxqspcavail == 0) { -+ hcchar.b.chen = 0; -+ } -+ } -+ else { -+ hptxsts.d32 = dwc_read_reg32(&host_global_regs->hptxsts); -+ if ((hptxsts.b.ptxqspcavail == 0) || (core_if->queuing_high_bandwidth)) { -+ hcchar.b.chen = 0; -+ } -+ } -+ } -+ -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ -+ hc->halt_status = halt_status; -+ -+ if (hcchar.b.chen) { -+ hc->halt_pending = 1; -+ hc->halt_on_queue = 0; -+ } -+ else { -+ hc->halt_on_queue = 1; -+ } -+ -+ DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); -+ DWC_DEBUGPL(DBG_HCDV, " hcchar: 0x%08x\n", hcchar.d32); -+ DWC_DEBUGPL(DBG_HCDV, " halt_pending: %d\n", hc->halt_pending); -+ DWC_DEBUGPL(DBG_HCDV, " halt_on_queue: %d\n", hc->halt_on_queue); -+ DWC_DEBUGPL(DBG_HCDV, " halt_status: %d\n", hc->halt_status); -+ -+ return; -+} -+ -+/** -+ * Clears the transfer state for a host channel. This function is normally -+ * called after a transfer is done and the host channel is being released. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param hc Identifies the host channel to clean up. -+ */ -+void dwc_otg_hc_cleanup(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) -+{ -+ dwc_otg_hc_regs_t *hc_regs; -+ -+ hc->xfer_started = 0; -+ -+ /* -+ * Clear channel interrupt enables and any unhandled channel interrupt -+ * conditions. -+ */ -+ hc_regs = core_if->host_if->hc_regs[hc->hc_num]; -+ dwc_write_reg32(&hc_regs->hcintmsk, 0); -+ dwc_write_reg32(&hc_regs->hcint, 0xFFFFFFFF); -+ -+#ifdef DEBUG -+ del_timer(&core_if->hc_xfer_timer[hc->hc_num]); -+ { -+ hcchar_data_t hcchar; -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ if (hcchar.b.chdis) { -+ DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n", -+ __func__, hc->hc_num, hcchar.d32); -+ } -+ } -+#endif -+} -+ -+/** -+ * Sets the channel property that indicates in which frame a periodic transfer -+ * should occur. This is always set to the _next_ frame. This function has no -+ * effect on non-periodic transfers. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param hc Identifies the host channel to set up and its properties. -+ * @param hcchar Current value of the HCCHAR register for the specified host -+ * channel. -+ */ -+static inline void hc_set_even_odd_frame(dwc_otg_core_if_t *core_if, -+ dwc_hc_t *hc, -+ hcchar_data_t *hcchar) -+{ -+ if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || -+ hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { -+ hfnum_data_t hfnum; -+ hfnum.d32 = dwc_read_reg32(&core_if->host_if->host_global_regs->hfnum); -+ -+ /* 1 if _next_ frame is odd, 0 if it's even */ -+ hcchar->b.oddfrm = (hfnum.b.frnum & 0x1) ? 0 : 1; -+#ifdef DEBUG -+ if (hc->ep_type == DWC_OTG_EP_TYPE_INTR && hc->do_split && !hc->complete_split) { -+ switch (hfnum.b.frnum & 0x7) { -+ case 7: -+ core_if->hfnum_7_samples++; -+ core_if->hfnum_7_frrem_accum += hfnum.b.frrem; -+ break; -+ case 0: -+ core_if->hfnum_0_samples++; -+ core_if->hfnum_0_frrem_accum += hfnum.b.frrem; -+ break; -+ default: -+ core_if->hfnum_other_samples++; -+ core_if->hfnum_other_frrem_accum += hfnum.b.frrem; -+ break; -+ } -+ } -+#endif -+ } -+} -+ -+#ifdef DEBUG -+static void hc_xfer_timeout(unsigned long ptr) -+{ -+ hc_xfer_info_t *xfer_info = (hc_xfer_info_t *)ptr; -+ int hc_num = xfer_info->hc->hc_num; -+ DWC_WARN("%s: timeout on channel %d\n", __func__, hc_num); -+ DWC_WARN(" start_hcchar_val 0x%08x\n", xfer_info->core_if->start_hcchar_val[hc_num]); -+} -+#endif -+ -+/* -+ * This function does the setup for a data transfer for a host channel and -+ * starts the transfer. May be called in either Slave mode or DMA mode. In -+ * Slave mode, the caller must ensure that there is sufficient space in the -+ * request queue and Tx Data FIFO. -+ * -+ * For an OUT transfer in Slave mode, it loads a data packet into the -+ * appropriate FIFO. If necessary, additional data packets will be loaded in -+ * the Host ISR. -+ * -+ * For an IN transfer in Slave mode, a data packet is requested. The data -+ * packets are unloaded from the Rx FIFO in the Host ISR. If necessary, -+ * additional data packets are requested in the Host ISR. -+ * -+ * For a PING transfer in Slave mode, the Do Ping bit is set in the HCTSIZ -+ * register along with a packet count of 1 and the channel is enabled. This -+ * causes a single PING transaction to occur. Other fields in HCTSIZ are -+ * simply set to 0 since no data transfer occurs in this case. -+ * -+ * For a PING transfer in DMA mode, the HCTSIZ register is initialized with -+ * all the information required to perform the subsequent data transfer. In -+ * addition, the Do Ping bit is set in the HCTSIZ register. In this case, the -+ * controller performs the entire PING protocol, then starts the data -+ * transfer. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param hc Information needed to initialize the host channel. The xfer_len -+ * value may be reduced to accommodate the max widths of the XferSize and -+ * PktCnt fields in the HCTSIZn register. The multi_count value may be changed -+ * to reflect the final xfer_len value. -+ */ -+void dwc_otg_hc_start_transfer(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) -+{ -+ hcchar_data_t hcchar; -+ hctsiz_data_t hctsiz; -+ uint16_t num_packets; -+ uint32_t max_hc_xfer_size = core_if->core_params->max_transfer_size; -+ uint16_t max_hc_pkt_count = core_if->core_params->max_packet_count; -+ dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num]; -+ -+ hctsiz.d32 = 0; -+ -+ if (hc->do_ping) { -+ if (!core_if->dma_enable) { -+ dwc_otg_hc_do_ping(core_if, hc); -+ hc->xfer_started = 1; -+ return; -+ } -+ else { -+ hctsiz.b.dopng = 1; -+ } -+ } -+ -+ if (hc->do_split) { -+ num_packets = 1; -+ -+ if (hc->complete_split && !hc->ep_is_in) { -+ /* For CSPLIT OUT Transfer, set the size to 0 so the -+ * core doesn't expect any data written to the FIFO */ -+ hc->xfer_len = 0; -+ } -+ else if (hc->ep_is_in || (hc->xfer_len > hc->max_packet)) { -+ hc->xfer_len = hc->max_packet; -+ } -+ else if (!hc->ep_is_in && (hc->xfer_len > 188)) { -+ hc->xfer_len = 188; -+ } -+ -+ hctsiz.b.xfersize = hc->xfer_len; -+ } -+ else { -+ /* -+ * Ensure that the transfer length and packet count will fit -+ * in the widths allocated for them in the HCTSIZn register. -+ */ -+ if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || -+ hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { -+ /* -+ * Make sure the transfer size is no larger than one -+ * (micro)frame's worth of data. (A check was done -+ * when the periodic transfer was accepted to ensure -+ * that a (micro)frame's worth of data can be -+ * programmed into a channel.) -+ */ -+ uint32_t max_periodic_len = hc->multi_count * hc->max_packet; -+ if (hc->xfer_len > max_periodic_len) { -+ hc->xfer_len = max_periodic_len; -+ } -+ else { -+ } -+ } -+ else if (hc->xfer_len > max_hc_xfer_size) { -+ /* Make sure that xfer_len is a multiple of max packet size. */ -+ hc->xfer_len = max_hc_xfer_size - hc->max_packet + 1; -+ } -+ -+ if (hc->xfer_len > 0) { -+ num_packets = (hc->xfer_len + hc->max_packet - 1) / hc->max_packet; -+ if (num_packets > max_hc_pkt_count) { -+ num_packets = max_hc_pkt_count; -+ hc->xfer_len = num_packets * hc->max_packet; -+ } -+ } -+ else { -+ /* Need 1 packet for transfer length of 0. */ -+ num_packets = 1; -+ } -+ -+#if 0 -+//host testusb item 10, would do series of Control transfer -+//with URB_SHORT_NOT_OK set in transfer_flags , -+//changing the xfer_len would cause the test fail -+ if (hc->ep_is_in) { -+ /* Always program an integral # of max packets for IN transfers. */ -+ hc->xfer_len = num_packets * hc->max_packet; -+ } -+#endif -+ -+ if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || -+ hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { -+ /* -+ * Make sure that the multi_count field matches the -+ * actual transfer length. -+ */ -+ hc->multi_count = num_packets; -+ } -+ -+ if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { -+ /* Set up the initial PID for the transfer. */ -+ if (hc->speed == DWC_OTG_EP_SPEED_HIGH) { -+ if (hc->ep_is_in) { -+ if (hc->multi_count == 1) { -+ hc->data_pid_start = DWC_OTG_HC_PID_DATA0; -+ } -+ else if (hc->multi_count == 2) { -+ hc->data_pid_start = DWC_OTG_HC_PID_DATA1; -+ } -+ else { -+ hc->data_pid_start = DWC_OTG_HC_PID_DATA2; -+ } -+ } -+ else { -+ if (hc->multi_count == 1) { -+ hc->data_pid_start = DWC_OTG_HC_PID_DATA0; -+ } -+ else { -+ hc->data_pid_start = DWC_OTG_HC_PID_MDATA; -+ } -+ } -+ } -+ else { -+ hc->data_pid_start = DWC_OTG_HC_PID_DATA0; -+ } -+ } -+ -+ hctsiz.b.xfersize = hc->xfer_len; -+ } -+ -+ hc->start_pkt_count = num_packets; -+ hctsiz.b.pktcnt = num_packets; -+ hctsiz.b.pid = hc->data_pid_start; -+ dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); -+ -+ DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); -+ DWC_DEBUGPL(DBG_HCDV, " Xfer Size: %d\n", hctsiz.b.xfersize); -+ DWC_DEBUGPL(DBG_HCDV, " Num Pkts: %d\n", hctsiz.b.pktcnt); -+ DWC_DEBUGPL(DBG_HCDV, " Start PID: %d\n", hctsiz.b.pid); -+ -+ if (core_if->dma_enable) { -+ dwc_write_reg32(&hc_regs->hcdma, (uint32_t)hc->xfer_buff); -+ } -+ -+ /* Start the split */ -+ if (hc->do_split) { -+ hcsplt_data_t hcsplt; -+ hcsplt.d32 = dwc_read_reg32 (&hc_regs->hcsplt); -+ hcsplt.b.spltena = 1; -+ dwc_write_reg32(&hc_regs->hcsplt, hcsplt.d32); -+ } -+ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hcchar.b.multicnt = hc->multi_count; -+ hc_set_even_odd_frame(core_if, hc, &hcchar); -+#ifdef DEBUG -+ core_if->start_hcchar_val[hc->hc_num] = hcchar.d32; -+ if (hcchar.b.chdis) { -+ DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n", -+ __func__, hc->hc_num, hcchar.d32); -+ } -+#endif -+ -+ /* Set host channel enable after all other setup is complete. */ -+ hcchar.b.chen = 1; -+ hcchar.b.chdis = 0; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ -+ hc->xfer_started = 1; -+ hc->requests++; -+ -+ if (!core_if->dma_enable && -+ !hc->ep_is_in && hc->xfer_len > 0) { -+ /* Load OUT packet into the appropriate Tx FIFO. */ -+ dwc_otg_hc_write_packet(core_if, hc); -+ } -+ -+#ifdef DEBUG -+ /* Start a timer for this transfer. */ -+ core_if->hc_xfer_timer[hc->hc_num].function = hc_xfer_timeout; -+ core_if->hc_xfer_info[hc->hc_num].core_if = core_if; -+ core_if->hc_xfer_info[hc->hc_num].hc = hc; -+ core_if->hc_xfer_timer[hc->hc_num].data = (unsigned long)(&core_if->hc_xfer_info[hc->hc_num]); -+ core_if->hc_xfer_timer[hc->hc_num].expires = jiffies + (HZ*10); -+ add_timer(&core_if->hc_xfer_timer[hc->hc_num]); -+#endif -+} -+ -+/** -+ * This function continues a data transfer that was started by previous call -+ * to <code>dwc_otg_hc_start_transfer</code>. The caller must ensure there is -+ * sufficient space in the request queue and Tx Data FIFO. This function -+ * should only be called in Slave mode. In DMA mode, the controller acts -+ * autonomously to complete transfers programmed to a host channel. -+ * -+ * For an OUT transfer, a new data packet is loaded into the appropriate FIFO -+ * if there is any data remaining to be queued. For an IN transfer, another -+ * data packet is always requested. For the SETUP phase of a control transfer, -+ * this function does nothing. -+ * -+ * @return 1 if a new request is queued, 0 if no more requests are required -+ * for this transfer. -+ */ -+int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) -+{ -+ DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); -+ -+ if (hc->do_split) { -+ /* SPLITs always queue just once per channel */ -+ return 0; -+ } -+ else if (hc->data_pid_start == DWC_OTG_HC_PID_SETUP) { -+ /* SETUPs are queued only once since they can't be NAKed. */ -+ return 0; -+ } -+ else if (hc->ep_is_in) { -+ /* -+ * Always queue another request for other IN transfers. If -+ * back-to-back INs are issued and NAKs are received for both, -+ * the driver may still be processing the first NAK when the -+ * second NAK is received. When the interrupt handler clears -+ * the NAK interrupt for the first NAK, the second NAK will -+ * not be seen. So we can't depend on the NAK interrupt -+ * handler to requeue a NAKed request. Instead, IN requests -+ * are issued each time this function is called. When the -+ * transfer completes, the extra requests for the channel will -+ * be flushed. -+ */ -+ hcchar_data_t hcchar; -+ dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num]; -+ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hc_set_even_odd_frame(core_if, hc, &hcchar); -+ hcchar.b.chen = 1; -+ hcchar.b.chdis = 0; -+ DWC_DEBUGPL(DBG_HCDV, " IN xfer: hcchar = 0x%08x\n", hcchar.d32); -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ hc->requests++; -+ return 1; -+ } -+ else { -+ /* OUT transfers. */ -+ if (hc->xfer_count < hc->xfer_len) { -+ if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || -+ hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { -+ hcchar_data_t hcchar; -+ dwc_otg_hc_regs_t *hc_regs; -+ hc_regs = core_if->host_if->hc_regs[hc->hc_num]; -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hc_set_even_odd_frame(core_if, hc, &hcchar); -+ } -+ -+ /* Load OUT packet into the appropriate Tx FIFO. */ -+ dwc_otg_hc_write_packet(core_if, hc); -+ hc->requests++; -+ return 1; -+ } -+ else { -+ return 0; -+ } -+ } -+} -+ -+/** -+ * Starts a PING transfer. This function should only be called in Slave mode. -+ * The Do Ping bit is set in the HCTSIZ register, then the channel is enabled. -+ */ -+void dwc_otg_hc_do_ping(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) -+{ -+ hcchar_data_t hcchar; -+ hctsiz_data_t hctsiz; -+ dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num]; -+ -+ DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); -+ -+ hctsiz.d32 = 0; -+ hctsiz.b.dopng = 1; -+ hctsiz.b.pktcnt = 1; -+ dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); -+ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hcchar.b.chen = 1; -+ hcchar.b.chdis = 0; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+} -+ -+/* -+ * This function writes a packet into the Tx FIFO associated with the Host -+ * Channel. For a channel associated with a non-periodic EP, the non-periodic -+ * Tx FIFO is written. For a channel associated with a periodic EP, the -+ * periodic Tx FIFO is written. This function should only be called in Slave -+ * mode. -+ * -+ * Upon return the xfer_buff and xfer_count fields in _hc are incremented by -+ * then number of bytes written to the Tx FIFO. -+ */ -+void dwc_otg_hc_write_packet(dwc_otg_core_if_t *core_if, dwc_hc_t *hc) -+{ -+ uint32_t i; -+ uint32_t remaining_count; -+ uint32_t byte_count; -+ uint32_t dword_count; -+ -+ uint32_t *data_buff = (uint32_t *)(hc->xfer_buff); -+ uint32_t *data_fifo = core_if->data_fifo[hc->hc_num]; -+ -+ remaining_count = hc->xfer_len - hc->xfer_count; -+ if (remaining_count > hc->max_packet) { -+ byte_count = hc->max_packet; -+ } -+ else { -+ byte_count = remaining_count; -+ } -+ -+ dword_count = (byte_count + 3) / 4; -+ -+ if ((((unsigned long)data_buff) & 0x3) == 0) { -+ /* xfer_buff is DWORD aligned. */ -+ for (i = 0; i < dword_count; i++, data_buff++) -+ { -+ dwc_write_reg32(data_fifo, *data_buff); -+ } -+ } -+ else { -+ /* xfer_buff is not DWORD aligned. */ -+ for (i = 0; i < dword_count; i++, data_buff++) -+ { -+ dwc_write_reg32(data_fifo, get_unaligned(data_buff)); -+ } -+ } -+ -+ hc->xfer_count += byte_count; -+ hc->xfer_buff += byte_count; -+} -+ -+/** -+ * Gets the current USB frame number. This is the frame number from the last -+ * SOF packet. -+ */ -+uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t *core_if) -+{ -+ dsts_data_t dsts; -+ dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); -+ -+ /* read current frame/microframe number from DSTS register */ -+ return dsts.b.soffn; -+} -+ -+/** -+ * This function reads a setup packet from the Rx FIFO into the destination -+ * buffer. This function is called from the Rx Status Queue Level (RxStsQLvl) -+ * Interrupt routine when a SETUP packet has been received in Slave mode. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param dest Destination buffer for packet data. -+ */ -+void dwc_otg_read_setup_packet(dwc_otg_core_if_t *core_if, uint32_t *dest) -+{ -+ /* Get the 8 bytes of a setup transaction data */ -+ -+ /* Pop 2 DWORDS off the receive data FIFO into memory */ -+ dest[0] = dwc_read_reg32(core_if->data_fifo[0]); -+ dest[1] = dwc_read_reg32(core_if->data_fifo[0]); -+} -+ -+ -+/** -+ * This function enables EP0 OUT to receive SETUP packets and configures EP0 -+ * IN for transmitting packets. It is normally called when the -+ * "Enumeration Done" interrupt occurs. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP0 data. -+ */ -+void dwc_otg_ep0_activate(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ dsts_data_t dsts; -+ depctl_data_t diepctl; -+ depctl_data_t doepctl; -+ dctl_data_t dctl = { .d32 = 0 }; -+ -+ /* Read the Device Status and Endpoint 0 Control registers */ -+ dsts.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dsts); -+ diepctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl); -+ doepctl.d32 = dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl); -+ -+ /* Set the MPS of the IN EP based on the enumeration speed */ -+ switch (dsts.b.enumspd) { -+ case DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ: -+ case DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ: -+ case DWC_DSTS_ENUMSPD_FS_PHY_48MHZ: -+ diepctl.b.mps = DWC_DEP0CTL_MPS_64; -+ break; -+ case DWC_DSTS_ENUMSPD_LS_PHY_6MHZ: -+ diepctl.b.mps = DWC_DEP0CTL_MPS_8; -+ break; -+ } -+ -+ dwc_write_reg32(&dev_if->in_ep_regs[0]->diepctl, diepctl.d32); -+ -+ /* Enable OUT EP for receive */ -+ doepctl.b.epena = 1; -+ dwc_write_reg32(&dev_if->out_ep_regs[0]->doepctl, doepctl.d32); -+ -+#ifdef VERBOSE -+ DWC_DEBUGPL(DBG_PCDV,"doepctl0=%0x\n", -+ dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl)); -+ DWC_DEBUGPL(DBG_PCDV,"diepctl0=%0x\n", -+ dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl)); -+#endif -+ dctl.b.cgnpinnak = 1; -+ -+ dwc_modify_reg32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32); -+ DWC_DEBUGPL(DBG_PCDV,"dctl=%0x\n", -+ dwc_read_reg32(&dev_if->dev_global_regs->dctl)); -+} -+ -+/** -+ * This function activates an EP. The Device EP control register for -+ * the EP is configured as defined in the ep structure. Note: This -+ * function is not used for EP0. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to activate. -+ */ -+void dwc_otg_ep_activate(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ depctl_data_t depctl; -+ volatile uint32_t *addr; -+ daint_data_t daintmsk = { .d32 = 0 }; -+ -+ DWC_DEBUGPL(DBG_PCDV, "%s() EP%d-%s\n", __func__, ep->num, -+ (ep->is_in?"IN":"OUT")); -+ -+ /* Read DEPCTLn register */ -+ if (ep->is_in == 1) { -+ addr = &dev_if->in_ep_regs[ep->num]->diepctl; -+ daintmsk.ep.in = 1<<ep->num; -+ } -+ else { -+ addr = &dev_if->out_ep_regs[ep->num]->doepctl; -+ daintmsk.ep.out = 1<<ep->num; -+ } -+ -+ /* If the EP is already active don't change the EP Control -+ * register. */ -+ depctl.d32 = dwc_read_reg32(addr); -+ if (!depctl.b.usbactep) { -+ depctl.b.mps = ep->maxpacket; -+ depctl.b.eptype = ep->type; -+ depctl.b.txfnum = ep->tx_fifo_num; -+ -+ if (ep->type == DWC_OTG_EP_TYPE_ISOC) { -+ depctl.b.setd0pid = 1; // ??? -+ } -+ else { -+ depctl.b.setd0pid = 1; -+ } -+ depctl.b.usbactep = 1; -+ -+ dwc_write_reg32(addr, depctl.d32); -+ DWC_DEBUGPL(DBG_PCDV,"DEPCTL(%.8x)=%08x\n",(u32)addr, dwc_read_reg32(addr)); -+ } -+ -+ /* Enable the Interrupt for this EP */ -+ if(core_if->multiproc_int_enable) { -+ if (ep->is_in == 1) { -+ diepmsk_data_t diepmsk = { .d32 = 0}; -+ diepmsk.b.xfercompl = 1; -+ diepmsk.b.timeout = 1; -+ diepmsk.b.epdisabled = 1; -+ diepmsk.b.ahberr = 1; -+ diepmsk.b.intknepmis = 1; -+ diepmsk.b.txfifoundrn = 1; //????? -+ -+ -+ if(core_if->dma_desc_enable) { -+ diepmsk.b.bna = 1; -+ } -+/* -+ if(core_if->dma_enable) { -+ doepmsk.b.nak = 1; -+ } -+*/ -+ dwc_write_reg32(&dev_if->dev_global_regs->diepeachintmsk[ep->num], diepmsk.d32); -+ -+ } else { -+ doepmsk_data_t doepmsk = { .d32 = 0}; -+ doepmsk.b.xfercompl = 1; -+ doepmsk.b.ahberr = 1; -+ doepmsk.b.epdisabled = 1; -+ -+ -+ if(core_if->dma_desc_enable) { -+ doepmsk.b.bna = 1; -+ } -+/* -+ doepmsk.b.babble = 1; -+ doepmsk.b.nyet = 1; -+ doepmsk.b.nak = 1; -+*/ -+ dwc_write_reg32(&dev_if->dev_global_regs->doepeachintmsk[ep->num], doepmsk.d32); -+ } -+ dwc_modify_reg32(&dev_if->dev_global_regs->deachintmsk, -+ 0, daintmsk.d32); -+ } else { -+ dwc_modify_reg32(&dev_if->dev_global_regs->daintmsk, -+ 0, daintmsk.d32); -+ } -+ -+ DWC_DEBUGPL(DBG_PCDV,"DAINTMSK=%0x\n", -+ dwc_read_reg32(&dev_if->dev_global_regs->daintmsk)); -+ -+ ep->stall_clear_flag = 0; -+ return; -+} -+ -+/** -+ * This function deactivates an EP. This is done by clearing the USB Active -+ * EP bit in the Device EP control register. Note: This function is not used -+ * for EP0. EP0 cannot be deactivated. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to deactivate. -+ */ -+void dwc_otg_ep_deactivate(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ depctl_data_t depctl = { .d32 = 0 }; -+ volatile uint32_t *addr; -+ daint_data_t daintmsk = { .d32 = 0}; -+ -+ /* Read DEPCTLn register */ -+ if (ep->is_in == 1) { -+ addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; -+ daintmsk.ep.in = 1<<ep->num; -+ } -+ else { -+ addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; -+ daintmsk.ep.out = 1<<ep->num; -+ } -+ -+ //disabled ep only when ep is enabled -+ //or got halt in the loop in test in cv9 -+ depctl.d32=dwc_read_reg32(addr); -+ if(depctl.b.epena){ -+ if (ep->is_in == 1) { -+ diepint_data_t diepint; -+ dwc_otg_dev_in_ep_regs_t *in_reg=core_if->dev_if->in_ep_regs[ep->num]; -+ -+ //Set ep nak -+ depctl.d32=dwc_read_reg32(&in_reg->diepctl); -+ depctl.b.snak=1; -+ dwc_write_reg32(&in_reg->diepctl,depctl.d32); -+ -+ //wait for diepint.b.inepnakeff -+ diepint.d32=dwc_read_reg32(&in_reg->diepint); -+ while(!diepint.b.inepnakeff){ -+ udelay(1); -+ diepint.d32=dwc_read_reg32(&in_reg->diepint); -+ } -+ diepint.d32=0; -+ diepint.b.inepnakeff=1; -+ dwc_write_reg32(&in_reg->diepint,diepint.d32); -+ -+ //set ep disable and snak -+ depctl.d32=dwc_read_reg32(&in_reg->diepctl); -+ depctl.b.snak=1; -+ depctl.b.epdis=1; -+ dwc_write_reg32(&in_reg->diepctl,depctl.d32); -+ -+ //wait for diepint.b.epdisabled -+ diepint.d32=dwc_read_reg32(&in_reg->diepint); -+ while(!diepint.b.epdisabled){ -+ udelay(1); -+ diepint.d32=dwc_read_reg32(&in_reg->diepint); -+ } -+ diepint.d32=0; -+ diepint.b.epdisabled=1; -+ dwc_write_reg32(&in_reg->diepint,diepint.d32); -+ -+ //clear ep enable and disable bit -+ depctl.d32=dwc_read_reg32(&in_reg->diepctl); -+ depctl.b.epena=0; -+ depctl.b.epdis=0; -+ dwc_write_reg32(&in_reg->diepctl,depctl.d32); -+ -+ } -+#if 0 -+//following DWC OTG DataBook v2.72a, 6.4.2.1.3 Disabling an OUT Endpoint, -+//but this doesn't work, the old code do. -+ else { -+ doepint_data_t doepint; -+ dwc_otg_dev_out_ep_regs_t *out_reg=core_if->dev_if->out_ep_regs[ep->num]; -+ dctl_data_t dctl; -+ gintsts_data_t gintsts; -+ -+ //set dctl global out nak -+ dctl.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dctl); -+ dctl.b.sgoutnak=1; -+ dwc_write_reg32(&core_if->dev_if->dev_global_regs->dctl,dctl.d32); -+ -+ //wait for gintsts.goutnakeff -+ gintsts.d32=dwc_read_reg32(&core_if->core_global_regs->gintsts); -+ while(!gintsts.b.goutnakeff){ -+ udelay(1); -+ gintsts.d32=dwc_read_reg32(&core_if->core_global_regs->gintsts); -+ } -+ gintsts.d32=0; -+ gintsts.b.goutnakeff=1; -+ dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); -+ -+ //set ep disable and snak -+ depctl.d32=dwc_read_reg32(&out_reg->doepctl); -+ depctl.b.snak=1; -+ depctl.b.epdis=1; -+ dwc_write_reg32(&out_reg->doepctl,depctl.d32); -+ -+ //wait for diepint.b.epdisabled -+ doepint.d32=dwc_read_reg32(&out_reg->doepint); -+ while(!doepint.b.epdisabled){ -+ udelay(1); -+ doepint.d32=dwc_read_reg32(&out_reg->doepint); -+ } -+ doepint.d32=0; -+ doepint.b.epdisabled=1; -+ dwc_write_reg32(&out_reg->doepint,doepint.d32); -+ -+ //clear ep enable and disable bit -+ depctl.d32=dwc_read_reg32(&out_reg->doepctl); -+ depctl.b.epena=0; -+ depctl.b.epdis=0; -+ dwc_write_reg32(&out_reg->doepctl,depctl.d32); -+ } -+#endif -+ -+ depctl.d32=0; -+ depctl.b.usbactep = 0; -+ -+ if (ep->is_in == 0) { -+ if(core_if->dma_enable||core_if->dma_desc_enable) -+ depctl.b.epdis = 1; -+ } -+ -+ dwc_write_reg32(addr, depctl.d32); -+ } -+ -+ /* Disable the Interrupt for this EP */ -+ if(core_if->multiproc_int_enable) { -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->deachintmsk, -+ daintmsk.d32, 0); -+ -+ if (ep->is_in == 1) { -+ dwc_write_reg32(&core_if->dev_if->dev_global_regs->diepeachintmsk[ep->num], 0); -+ } else { -+ dwc_write_reg32(&core_if->dev_if->dev_global_regs->doepeachintmsk[ep->num], 0); -+ } -+ } else { -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->daintmsk, -+ daintmsk.d32, 0); -+ } -+ -+ if (ep->is_in == 1) { -+ DWC_DEBUGPL(DBG_PCD, "DIEPCTL(%.8x)=%08x DIEPTSIZ=%08x, DIEPINT=%.8x, DIEPDMA=%.8x, DTXFSTS=%.8x\n", -+ (u32)&core_if->dev_if->in_ep_regs[ep->num]->diepctl, -+ dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->diepctl), -+ dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz), -+ dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->diepint), -+ dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->diepdma), -+ dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dtxfsts)); -+ DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", -+ dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk), -+ dwc_read_reg32(&core_if->core_global_regs->gintmsk)); -+ } -+ else { -+ DWC_DEBUGPL(DBG_PCD, "DOEPCTL(%.8x)=%08x DOEPTSIZ=%08x, DOEPINT=%.8x, DOEPDMA=%.8x\n", -+ (u32)&core_if->dev_if->out_ep_regs[ep->num]->doepctl, -+ dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doepctl), -+ dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doeptsiz), -+ dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doepint), -+ dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doepdma)); -+ -+ DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", -+ dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk), -+ dwc_read_reg32(&core_if->core_global_regs->gintmsk)); -+ } -+ -+} -+ -+/** -+ * This function does the setup for a data transfer for an EP and -+ * starts the transfer. For an IN transfer, the packets will be -+ * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, -+ * the packets are unloaded from the Rx FIFO in the ISR. the ISR. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to start the transfer on. -+ */ -+static void init_dma_desc_chain(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ dwc_otg_dma_desc_t* dma_desc; -+ uint32_t offset; -+ uint32_t xfer_est; -+ int i; -+ -+ ep->desc_cnt = ( ep->total_len / ep->maxxfer) + -+ ((ep->total_len % ep->maxxfer) ? 1 : 0); -+ if(!ep->desc_cnt) -+ ep->desc_cnt = 1; -+ -+ dma_desc = ep->desc_addr; -+ xfer_est = ep->total_len; -+ offset = 0; -+ for( i = 0; i < ep->desc_cnt; ++i) { -+ /** DMA Descriptor Setup */ -+ if(xfer_est > ep->maxxfer) { -+ dma_desc->status.b.bs = BS_HOST_BUSY; -+ dma_desc->status.b.l = 0; -+ dma_desc->status.b.ioc = 0; -+ dma_desc->status.b.sp = 0; -+ dma_desc->status.b.bytes = ep->maxxfer; -+ dma_desc->buf = ep->dma_addr + offset; -+ dma_desc->status.b.bs = BS_HOST_READY; -+ -+ xfer_est -= ep->maxxfer; -+ offset += ep->maxxfer; -+ } else { -+ dma_desc->status.b.bs = BS_HOST_BUSY; -+ dma_desc->status.b.l = 1; -+ dma_desc->status.b.ioc = 1; -+ if(ep->is_in) { -+ dma_desc->status.b.sp = (xfer_est % ep->maxpacket) ? -+ 1 : ((ep->sent_zlp) ? 1 : 0); -+ dma_desc->status.b.bytes = xfer_est; -+ } else { -+ dma_desc->status.b.bytes = xfer_est + ((4 - (xfer_est & 0x3)) & 0x3) ; -+ } -+ -+ dma_desc->buf = ep->dma_addr + offset; -+ dma_desc->status.b.bs = BS_HOST_READY; -+ } -+ dma_desc ++; -+ } -+} -+ -+/** -+ * This function does the setup for a data transfer for an EP and -+ * starts the transfer. For an IN transfer, the packets will be -+ * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, -+ * the packets are unloaded from the Rx FIFO in the ISR. the ISR. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to start the transfer on. -+ */ -+ -+void dwc_otg_ep_start_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ depctl_data_t depctl; -+ deptsiz_data_t deptsiz; -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ -+ DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s()\n", __func__); -+ -+ DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d " -+ "xfer_buff=%p start_xfer_buff=%p\n", -+ ep->num, (ep->is_in?"IN":"OUT"), ep->xfer_len, -+ ep->xfer_count, ep->xfer_buff, ep->start_xfer_buff); -+ -+ /* IN endpoint */ -+ if (ep->is_in == 1) { -+ dwc_otg_dev_in_ep_regs_t *in_regs = -+ core_if->dev_if->in_ep_regs[ep->num]; -+ -+ gnptxsts_data_t gtxstatus; -+ -+ gtxstatus.d32 = -+ dwc_read_reg32(&core_if->core_global_regs->gnptxsts); -+ -+ if(core_if->en_multiple_tx_fifo == 0 && gtxstatus.b.nptxqspcavail == 0) { -+#ifdef DEBUG -+ DWC_PRINT("TX Queue Full (0x%0x)\n", gtxstatus.d32); -+#endif -+ return; -+ } -+ -+ depctl.d32 = dwc_read_reg32(&(in_regs->diepctl)); -+ deptsiz.d32 = dwc_read_reg32(&(in_regs->dieptsiz)); -+ -+ ep->xfer_len += (ep->maxxfer < (ep->total_len - ep->xfer_len)) ? -+ ep->maxxfer : (ep->total_len - ep->xfer_len); -+ -+ /* Zero Length Packet? */ -+ if ((ep->xfer_len - ep->xfer_count) == 0) { -+ deptsiz.b.xfersize = 0; -+ deptsiz.b.pktcnt = 1; -+ } -+ else { -+ /* Program the transfer size and packet count -+ * as follows: xfersize = N * maxpacket + -+ * short_packet pktcnt = N + (short_packet -+ * exist ? 1 : 0) -+ */ -+ deptsiz.b.xfersize = ep->xfer_len - ep->xfer_count; -+ deptsiz.b.pktcnt = -+ (ep->xfer_len - ep->xfer_count - 1 + ep->maxpacket) / -+ ep->maxpacket; -+ } -+ -+ -+ /* Write the DMA register */ -+ if (core_if->dma_enable) { -+ if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { -+ ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); -+ } -+ DWC_DEBUGPL(DBG_PCDV, "ep%d dma_addr=%.8x\n", ep->num, ep->dma_addr); -+ -+ if (core_if->dma_desc_enable == 0) { -+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); -+ -+ VERIFY_PCD_DMA_ADDR(ep->dma_addr); -+ dwc_write_reg32 (&(in_regs->diepdma), -+ (uint32_t)ep->dma_addr); -+ } -+ else { -+ init_dma_desc_chain(core_if, ep); -+ /** DIEPDMAn Register write */ -+ -+ VERIFY_PCD_DMA_ADDR(ep->dma_desc_addr); -+ dwc_write_reg32(&in_regs->diepdma, ep->dma_desc_addr); -+ } -+ } -+ else -+ { -+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); -+ if(ep->type != DWC_OTG_EP_TYPE_ISOC) { -+ /** -+ * Enable the Non-Periodic Tx FIFO empty interrupt, -+ * or the Tx FIFO epmty interrupt in dedicated Tx FIFO mode, -+ * the data will be written into the fifo by the ISR. -+ */ -+ if(core_if->en_multiple_tx_fifo == 0) { -+ intr_mask.b.nptxfempty = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gintmsk, -+ intr_mask.d32, intr_mask.d32); -+ } -+ else { -+ /* Enable the Tx FIFO Empty Interrupt for this EP */ -+ if(ep->xfer_len > 0) { -+ uint32_t fifoemptymsk = 0; -+ fifoemptymsk = 1 << ep->num; -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, -+ 0, fifoemptymsk); -+ -+ } -+ } -+ } -+ } -+ -+ /* EP enable, IN data in FIFO */ -+ depctl.b.cnak = 1; -+ depctl.b.epena = 1; -+ dwc_write_reg32(&in_regs->diepctl, depctl.d32); -+ -+ depctl.d32 = dwc_read_reg32 (&core_if->dev_if->in_ep_regs[0]->diepctl); -+ depctl.b.nextep = ep->num; -+ dwc_write_reg32 (&core_if->dev_if->in_ep_regs[0]->diepctl, depctl.d32); -+ -+ DWC_DEBUGPL(DBG_PCD, "DIEPCTL(%.8x)=%08x DIEPTSIZ=%08x, DIEPINT=%.8x, DIEPDMA=%.8x, DTXFSTS=%.8x\n", -+ (u32)&in_regs->diepctl, -+ dwc_read_reg32(&in_regs->diepctl), -+ dwc_read_reg32(&in_regs->dieptsiz), -+ dwc_read_reg32(&in_regs->diepint), -+ dwc_read_reg32(&in_regs->diepdma), -+ dwc_read_reg32(&in_regs->dtxfsts)); -+ DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", -+ dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk), -+ dwc_read_reg32(&core_if->core_global_regs->gintmsk)); -+ -+ } -+ else { -+ /* OUT endpoint */ -+ dwc_otg_dev_out_ep_regs_t *out_regs = -+ core_if->dev_if->out_ep_regs[ep->num]; -+ -+ depctl.d32 = dwc_read_reg32(&(out_regs->doepctl)); -+ deptsiz.d32 = dwc_read_reg32(&(out_regs->doeptsiz)); -+ -+ ep->xfer_len += (ep->maxxfer < (ep->total_len - ep->xfer_len)) ? -+ ep->maxxfer : (ep->total_len - ep->xfer_len); -+ -+ /* Program the transfer size and packet count as follows: -+ * -+ * pktcnt = N -+ * xfersize = N * maxpacket -+ */ -+ if ((ep->xfer_len - ep->xfer_count) == 0) { -+ /* Zero Length Packet */ -+ deptsiz.b.xfersize = ep->maxpacket; -+ deptsiz.b.pktcnt = 1; -+ } -+ else { -+ deptsiz.b.pktcnt = -+ (ep->xfer_len - ep->xfer_count + (ep->maxpacket - 1)) / -+ ep->maxpacket; -+ ep->xfer_len = deptsiz.b.pktcnt * ep->maxpacket + ep->xfer_count; -+ deptsiz.b.xfersize = ep->xfer_len - ep->xfer_count; -+ } -+ -+ DWC_DEBUGPL(DBG_PCDV, "ep%d xfersize=%d pktcnt=%d\n", -+ ep->num, -+ deptsiz.b.xfersize, deptsiz.b.pktcnt); -+ -+ if (core_if->dma_enable) { -+ if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { -+ ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); -+ } -+ DWC_DEBUGPL(DBG_PCDV, "ep%d dma_addr=%.8x\n", -+ ep->num, -+ ep->dma_addr); -+ if (!core_if->dma_desc_enable) { -+ dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); -+ -+ VERIFY_PCD_DMA_ADDR(ep->dma_addr); -+ dwc_write_reg32 (&(out_regs->doepdma), -+ (uint32_t)ep->dma_addr); -+ } -+ else { -+ init_dma_desc_chain(core_if, ep); -+ -+ /** DOEPDMAn Register write */ -+ -+ VERIFY_PCD_DMA_ADDR(ep->dma_desc_addr); -+ dwc_write_reg32(&out_regs->doepdma, ep->dma_desc_addr); -+ } -+ } -+ else { -+ dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); -+ } -+ -+ /* EP enable */ -+ depctl.b.cnak = 1; -+ depctl.b.epena = 1; -+ -+ dwc_write_reg32(&out_regs->doepctl, depctl.d32); -+ -+ DWC_DEBUGPL(DBG_PCD, "DOEPCTL(%.8x)=%08x DOEPTSIZ=%08x, DOEPINT=%.8x, DOEPDMA=%.8x\n", -+ (u32)&out_regs->doepctl, -+ dwc_read_reg32(&out_regs->doepctl), -+ dwc_read_reg32(&out_regs->doeptsiz), -+ dwc_read_reg32(&out_regs->doepint), -+ dwc_read_reg32(&out_regs->doepdma)); -+ -+ DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", -+ dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk), -+ dwc_read_reg32(&core_if->core_global_regs->gintmsk)); -+ } -+} -+ -+/** -+ * This function setup a zero length transfer in Buffer DMA and -+ * Slave modes for usb requests with zero field set -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to start the transfer on. -+ * -+ */ -+void dwc_otg_ep_start_zl_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ -+ depctl_data_t depctl; -+ deptsiz_data_t deptsiz; -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ -+ DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s()\n", __func__); -+ -+ /* IN endpoint */ -+ if (ep->is_in == 1) { -+ dwc_otg_dev_in_ep_regs_t *in_regs = -+ core_if->dev_if->in_ep_regs[ep->num]; -+ -+ depctl.d32 = dwc_read_reg32(&(in_regs->diepctl)); -+ deptsiz.d32 = dwc_read_reg32(&(in_regs->dieptsiz)); -+ -+ deptsiz.b.xfersize = 0; -+ deptsiz.b.pktcnt = 1; -+ -+ -+ /* Write the DMA register */ -+ if (core_if->dma_enable) { -+ if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { -+ ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); -+ } -+ if (core_if->dma_desc_enable == 0) { -+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); -+ -+ VERIFY_PCD_DMA_ADDR(ep->dma_addr); -+ dwc_write_reg32 (&(in_regs->diepdma), -+ (uint32_t)ep->dma_addr); -+ } -+ } -+ else { -+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); -+ /** -+ * Enable the Non-Periodic Tx FIFO empty interrupt, -+ * or the Tx FIFO epmty interrupt in dedicated Tx FIFO mode, -+ * the data will be written into the fifo by the ISR. -+ */ -+ if(core_if->en_multiple_tx_fifo == 0) { -+ intr_mask.b.nptxfempty = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gintmsk, -+ intr_mask.d32, intr_mask.d32); -+ } -+ else { -+ /* Enable the Tx FIFO Empty Interrupt for this EP */ -+ if(ep->xfer_len > 0) { -+ uint32_t fifoemptymsk = 0; -+ fifoemptymsk = 1 << ep->num; -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, -+ 0, fifoemptymsk); -+ } -+ } -+ } -+ -+ /* EP enable, IN data in FIFO */ -+ depctl.b.cnak = 1; -+ depctl.b.epena = 1; -+ dwc_write_reg32(&in_regs->diepctl, depctl.d32); -+ -+ depctl.d32 = dwc_read_reg32 (&core_if->dev_if->in_ep_regs[0]->diepctl); -+ depctl.b.nextep = ep->num; -+ dwc_write_reg32 (&core_if->dev_if->in_ep_regs[0]->diepctl, depctl.d32); -+ -+ } -+ else { -+ /* OUT endpoint */ -+ dwc_otg_dev_out_ep_regs_t *out_regs = -+ core_if->dev_if->out_ep_regs[ep->num]; -+ -+ depctl.d32 = dwc_read_reg32(&(out_regs->doepctl)); -+ deptsiz.d32 = dwc_read_reg32(&(out_regs->doeptsiz)); -+ -+ /* Zero Length Packet */ -+ deptsiz.b.xfersize = ep->maxpacket; -+ deptsiz.b.pktcnt = 1; -+ -+ if (core_if->dma_enable) { -+ if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { -+ ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); -+ } -+ if (!core_if->dma_desc_enable) { -+ dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); -+ -+ -+ VERIFY_PCD_DMA_ADDR(ep->dma_addr); -+ dwc_write_reg32 (&(out_regs->doepdma), -+ (uint32_t)ep->dma_addr); -+ } -+ } -+ else { -+ dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); -+ } -+ -+ /* EP enable */ -+ depctl.b.cnak = 1; -+ depctl.b.epena = 1; -+ -+ dwc_write_reg32(&out_regs->doepctl, depctl.d32); -+ -+ } -+} -+ -+/** -+ * This function does the setup for a data transfer for EP0 and starts -+ * the transfer. For an IN transfer, the packets will be loaded into -+ * the appropriate Tx FIFO in the ISR. For OUT transfers, the packets are -+ * unloaded from the Rx FIFO in the ISR. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP0 data. -+ */ -+void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ depctl_data_t depctl; -+ deptsiz0_data_t deptsiz; -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ dwc_otg_dma_desc_t* dma_desc; -+ -+ DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d " -+ "xfer_buff=%p start_xfer_buff=%p, dma_addr=%.8x\n", -+ ep->num, (ep->is_in?"IN":"OUT"), ep->xfer_len, -+ ep->xfer_count, ep->xfer_buff, ep->start_xfer_buff,ep->dma_addr); -+ -+ ep->total_len = ep->xfer_len; -+ -+ /* IN endpoint */ -+ if (ep->is_in == 1) { -+ dwc_otg_dev_in_ep_regs_t *in_regs = -+ core_if->dev_if->in_ep_regs[0]; -+ -+ gnptxsts_data_t gtxstatus; -+ -+ gtxstatus.d32 = -+ dwc_read_reg32(&core_if->core_global_regs->gnptxsts); -+ -+ if(core_if->en_multiple_tx_fifo == 0 && gtxstatus.b.nptxqspcavail == 0) { -+#ifdef DEBUG -+ deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz); -+ DWC_DEBUGPL(DBG_PCD,"DIEPCTL0=%0x\n", -+ dwc_read_reg32(&in_regs->diepctl)); -+ DWC_DEBUGPL(DBG_PCD, "DIEPTSIZ0=%0x (sz=%d, pcnt=%d)\n", -+ deptsiz.d32, -+ deptsiz.b.xfersize, deptsiz.b.pktcnt); -+ DWC_PRINT("TX Queue or FIFO Full (0x%0x)\n", -+ gtxstatus.d32); -+#endif -+ return; -+ } -+ -+ -+ depctl.d32 = dwc_read_reg32(&in_regs->diepctl); -+ deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz); -+ -+ /* Zero Length Packet? */ -+ if (ep->xfer_len == 0) { -+ deptsiz.b.xfersize = 0; -+ deptsiz.b.pktcnt = 1; -+ } -+ else { -+ /* Program the transfer size and packet count -+ * as follows: xfersize = N * maxpacket + -+ * short_packet pktcnt = N + (short_packet -+ * exist ? 1 : 0) -+ */ -+ if (ep->xfer_len > ep->maxpacket) { -+ ep->xfer_len = ep->maxpacket; -+ deptsiz.b.xfersize = ep->maxpacket; -+ } -+ else { -+ deptsiz.b.xfersize = ep->xfer_len; -+ } -+ deptsiz.b.pktcnt = 1; -+ -+ } -+ DWC_DEBUGPL(DBG_PCDV, "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", -+ ep->xfer_len, -+ deptsiz.b.xfersize, deptsiz.b.pktcnt, deptsiz.d32); -+ /* Write the DMA register */ -+ if (core_if->dma_enable) { -+ if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { -+ ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); -+ } -+ if(core_if->dma_desc_enable == 0) { -+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); -+ -+ VERIFY_PCD_DMA_ADDR(ep->dma_addr); -+ dwc_write_reg32 (&(in_regs->diepdma), -+ (uint32_t)ep->dma_addr); -+ } -+ else { -+ dma_desc = core_if->dev_if->in_desc_addr; -+ -+ /** DMA Descriptor Setup */ -+ dma_desc->status.b.bs = BS_HOST_BUSY; -+ dma_desc->status.b.l = 1; -+ dma_desc->status.b.ioc = 1; -+ dma_desc->status.b.sp = (ep->xfer_len == ep->maxpacket) ? 0 : 1; -+ dma_desc->status.b.bytes = ep->xfer_len; -+ dma_desc->buf = ep->dma_addr; -+ dma_desc->status.b.bs = BS_HOST_READY; -+ -+ /** DIEPDMA0 Register write */ -+ -+ VERIFY_PCD_DMA_ADDR(core_if->dev_if->dma_in_desc_addr); -+ dwc_write_reg32(&in_regs->diepdma, core_if->dev_if->dma_in_desc_addr); -+ } -+ } -+ else { -+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); -+ } -+ -+ /* EP enable, IN data in FIFO */ -+ depctl.b.cnak = 1; -+ depctl.b.epena = 1; -+ dwc_write_reg32(&in_regs->diepctl, depctl.d32); -+ -+ /** -+ * Enable the Non-Periodic Tx FIFO empty interrupt, the -+ * data will be written into the fifo by the ISR. -+ */ -+ if (!core_if->dma_enable) { -+ if(core_if->en_multiple_tx_fifo == 0) { -+ intr_mask.b.nptxfempty = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gintmsk, -+ intr_mask.d32, intr_mask.d32); -+ } -+ else { -+ /* Enable the Tx FIFO Empty Interrupt for this EP */ -+ if(ep->xfer_len > 0) { -+ uint32_t fifoemptymsk = 0; -+ fifoemptymsk |= 1 << ep->num; -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, -+ 0, fifoemptymsk); -+ } -+ } -+ } -+ } -+ else { -+ /* OUT endpoint */ -+ dwc_otg_dev_out_ep_regs_t *out_regs = -+ core_if->dev_if->out_ep_regs[0]; -+ -+ depctl.d32 = dwc_read_reg32(&out_regs->doepctl); -+ deptsiz.d32 = dwc_read_reg32(&out_regs->doeptsiz); -+ -+ /* Program the transfer size and packet count as follows: -+ * xfersize = N * (maxpacket + 4 - (maxpacket % 4)) -+ * pktcnt = N */ -+ /* Zero Length Packet */ -+ deptsiz.b.xfersize = ep->maxpacket; -+ deptsiz.b.pktcnt = 1; -+ -+ DWC_DEBUGPL(DBG_PCDV, "len=%d xfersize=%d pktcnt=%d\n", -+ ep->xfer_len, -+ deptsiz.b.xfersize, deptsiz.b.pktcnt); -+ -+ if (core_if->dma_enable) { -+ if (/*(core_if->dma_enable)&&*/(ep->dma_addr==DMA_ADDR_INVALID)) { -+ ep->dma_addr=dma_map_single(NULL,(void *)(ep->xfer_buff),(ep->xfer_len),DMA_TO_DEVICE); -+ } -+ if(!core_if->dma_desc_enable) { -+ dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); -+ -+ -+ VERIFY_PCD_DMA_ADDR(ep->dma_addr); -+ dwc_write_reg32 (&(out_regs->doepdma), -+ (uint32_t)ep->dma_addr); -+ } -+ else { -+ dma_desc = core_if->dev_if->out_desc_addr; -+ -+ /** DMA Descriptor Setup */ -+ dma_desc->status.b.bs = BS_HOST_BUSY; -+ dma_desc->status.b.l = 1; -+ dma_desc->status.b.ioc = 1; -+ dma_desc->status.b.bytes = ep->maxpacket; -+ dma_desc->buf = ep->dma_addr; -+ dma_desc->status.b.bs = BS_HOST_READY; -+ -+ /** DOEPDMA0 Register write */ -+ VERIFY_PCD_DMA_ADDR(core_if->dev_if->dma_out_desc_addr); -+ dwc_write_reg32(&out_regs->doepdma, core_if->dev_if->dma_out_desc_addr); -+ } -+ } -+ else { -+ dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); -+ } -+ -+ /* EP enable */ -+ depctl.b.cnak = 1; -+ depctl.b.epena = 1; -+ dwc_write_reg32 (&(out_regs->doepctl), depctl.d32); -+ } -+} -+ -+/** -+ * This function continues control IN transfers started by -+ * dwc_otg_ep0_start_transfer, when the transfer does not fit in a -+ * single packet. NOTE: The DIEPCTL0/DOEPCTL0 registers only have one -+ * bit for the packet count. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP0 data. -+ */ -+void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ depctl_data_t depctl; -+ deptsiz0_data_t deptsiz; -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ dwc_otg_dma_desc_t* dma_desc; -+ -+ if (ep->is_in == 1) { -+ dwc_otg_dev_in_ep_regs_t *in_regs = -+ core_if->dev_if->in_ep_regs[0]; -+ gnptxsts_data_t tx_status = { .d32 = 0 }; -+ -+ tx_status.d32 = dwc_read_reg32(&core_if->core_global_regs->gnptxsts); -+ /** @todo Should there be check for room in the Tx -+ * Status Queue. If not remove the code above this comment. */ -+ -+ depctl.d32 = dwc_read_reg32(&in_regs->diepctl); -+ deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz); -+ -+ /* Program the transfer size and packet count -+ * as follows: xfersize = N * maxpacket + -+ * short_packet pktcnt = N + (short_packet -+ * exist ? 1 : 0) -+ */ -+ -+ -+ if(core_if->dma_desc_enable == 0) { -+ deptsiz.b.xfersize = (ep->total_len - ep->xfer_count) > ep->maxpacket ? ep->maxpacket : -+ (ep->total_len - ep->xfer_count); -+ deptsiz.b.pktcnt = 1; -+ if(core_if->dma_enable == 0) { -+ ep->xfer_len += deptsiz.b.xfersize; -+ } else { -+ ep->xfer_len = deptsiz.b.xfersize; -+ } -+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); -+ } -+ else { -+ ep->xfer_len = (ep->total_len - ep->xfer_count) > ep->maxpacket ? ep->maxpacket : -+ (ep->total_len - ep->xfer_count); -+ -+ dma_desc = core_if->dev_if->in_desc_addr; -+ -+ /** DMA Descriptor Setup */ -+ dma_desc->status.b.bs = BS_HOST_BUSY; -+ dma_desc->status.b.l = 1; -+ dma_desc->status.b.ioc = 1; -+ dma_desc->status.b.sp = (ep->xfer_len == ep->maxpacket) ? 0 : 1; -+ dma_desc->status.b.bytes = ep->xfer_len; -+ dma_desc->buf = ep->dma_addr; -+ dma_desc->status.b.bs = BS_HOST_READY; -+ -+ -+ /** DIEPDMA0 Register write */ -+ VERIFY_PCD_DMA_ADDR(core_if->dev_if->dma_in_desc_addr); -+ dwc_write_reg32(&in_regs->diepdma, core_if->dev_if->dma_in_desc_addr); -+ } -+ -+ -+ DWC_DEBUGPL(DBG_PCDV, "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", -+ ep->xfer_len, -+ deptsiz.b.xfersize, deptsiz.b.pktcnt, deptsiz.d32); -+ -+ /* Write the DMA register */ -+ if (core_if->hwcfg2.b.architecture == DWC_INT_DMA_ARCH) { -+ if(core_if->dma_desc_enable == 0){ -+ -+ VERIFY_PCD_DMA_ADDR(ep->dma_addr); -+ dwc_write_reg32 (&(in_regs->diepdma), (uint32_t)ep->dma_addr); -+ } -+ } -+ -+ /* EP enable, IN data in FIFO */ -+ depctl.b.cnak = 1; -+ depctl.b.epena = 1; -+ dwc_write_reg32(&in_regs->diepctl, depctl.d32); -+ -+ /** -+ * Enable the Non-Periodic Tx FIFO empty interrupt, the -+ * data will be written into the fifo by the ISR. -+ */ -+ if (!core_if->dma_enable) { -+ if(core_if->en_multiple_tx_fifo == 0) { -+ /* First clear it from GINTSTS */ -+ intr_mask.b.nptxfempty = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gintmsk, -+ intr_mask.d32, intr_mask.d32); -+ -+ } -+ else { -+ /* Enable the Tx FIFO Empty Interrupt for this EP */ -+ if(ep->xfer_len > 0) { -+ uint32_t fifoemptymsk = 0; -+ fifoemptymsk |= 1 << ep->num; -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, -+ 0, fifoemptymsk); -+ } -+ } -+ } -+ } -+ else { -+ dwc_otg_dev_out_ep_regs_t *out_regs = -+ core_if->dev_if->out_ep_regs[0]; -+ -+ -+ depctl.d32 = dwc_read_reg32(&out_regs->doepctl); -+ deptsiz.d32 = dwc_read_reg32(&out_regs->doeptsiz); -+ -+ /* Program the transfer size and packet count -+ * as follows: xfersize = N * maxpacket + -+ * short_packet pktcnt = N + (short_packet -+ * exist ? 1 : 0) -+ */ -+ deptsiz.b.xfersize = ep->maxpacket; -+ deptsiz.b.pktcnt = 1; -+ -+ -+ if(core_if->dma_desc_enable == 0) { -+ dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); -+ } -+ else { -+ dma_desc = core_if->dev_if->out_desc_addr; -+ -+ /** DMA Descriptor Setup */ -+ dma_desc->status.b.bs = BS_HOST_BUSY; -+ dma_desc->status.b.l = 1; -+ dma_desc->status.b.ioc = 1; -+ dma_desc->status.b.bytes = ep->maxpacket; -+ dma_desc->buf = ep->dma_addr; -+ dma_desc->status.b.bs = BS_HOST_READY; -+ -+ /** DOEPDMA0 Register write */ -+ VERIFY_PCD_DMA_ADDR(core_if->dev_if->dma_out_desc_addr); -+ dwc_write_reg32(&out_regs->doepdma, core_if->dev_if->dma_out_desc_addr); -+ } -+ -+ -+ DWC_DEBUGPL(DBG_PCDV, "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", -+ ep->xfer_len, -+ deptsiz.b.xfersize, deptsiz.b.pktcnt, deptsiz.d32); -+ -+ /* Write the DMA register */ -+ if (core_if->hwcfg2.b.architecture == DWC_INT_DMA_ARCH) { -+ if(core_if->dma_desc_enable == 0){ -+ -+ VERIFY_PCD_DMA_ADDR(ep->dma_addr); -+ dwc_write_reg32 (&(out_regs->doepdma), (uint32_t)ep->dma_addr); -+ } -+ } -+ -+ /* EP enable, IN data in FIFO */ -+ depctl.b.cnak = 1; -+ depctl.b.epena = 1; -+ dwc_write_reg32(&out_regs->doepctl, depctl.d32); -+ -+ } -+} -+ -+#ifdef DEBUG -+void dump_msg(const u8 *buf, unsigned int length) -+{ -+ unsigned int start, num, i; -+ char line[52], *p; -+ -+ if (length >= 512) -+ return; -+ start = 0; -+ while (length > 0) { -+ num = min(length, 16u); -+ p = line; -+ for (i = 0; i < num; ++i) -+ { -+ if (i == 8) -+ *p++ = ' '; -+ sprintf(p, " %02x", buf[i]); -+ p += 3; -+ } -+ *p = 0; -+ DWC_PRINT("%6x: %s\n", start, line); -+ buf += num; -+ start += num; -+ length -= num; -+ } -+} -+#else -+static inline void dump_msg(const u8 *buf, unsigned int length) -+{ -+} -+#endif -+ -+/** -+ * This function writes a packet into the Tx FIFO associated with the -+ * EP. For non-periodic EPs the non-periodic Tx FIFO is written. For -+ * periodic EPs the periodic Tx FIFO associated with the EP is written -+ * with all packets for the next micro-frame. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to write packet for. -+ * @param dma Indicates if DMA is being used. -+ */ -+void dwc_otg_ep_write_packet(dwc_otg_core_if_t *core_if, dwc_ep_t *ep, int dma) -+{ -+ /** -+ * The buffer is padded to DWORD on a per packet basis in -+ * slave/dma mode if the MPS is not DWORD aligned. The last -+ * packet, if short, is also padded to a multiple of DWORD. -+ * -+ * ep->xfer_buff always starts DWORD aligned in memory and is a -+ * multiple of DWORD in length -+ * -+ * ep->xfer_len can be any number of bytes -+ * -+ * ep->xfer_count is a multiple of ep->maxpacket until the last -+ * packet -+ * -+ * FIFO access is DWORD */ -+ -+ uint32_t i; -+ uint32_t byte_count; -+ uint32_t dword_count; -+ uint32_t *fifo; -+ uint32_t *data_buff = (uint32_t *)ep->xfer_buff; -+ -+ DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p)\n", __func__, core_if, ep); -+ if (ep->xfer_count >= ep->xfer_len) { -+ DWC_WARN("%s() No data for EP%d!!!\n", __func__, ep->num); -+ return; -+ } -+ -+ /* Find the byte length of the packet either short packet or MPS */ -+ if ((ep->xfer_len - ep->xfer_count) < ep->maxpacket) { -+ byte_count = ep->xfer_len - ep->xfer_count; -+ } -+ else { -+ byte_count = ep->maxpacket; -+ } -+ -+ /* Find the DWORD length, padded by extra bytes as neccessary if MPS -+ * is not a multiple of DWORD */ -+ dword_count = (byte_count + 3) / 4; -+ -+#ifdef VERBOSE -+ dump_msg(ep->xfer_buff, byte_count); -+#endif -+ -+ /**@todo NGS Where are the Periodic Tx FIFO addresses -+ * intialized? What should this be? */ -+ -+ fifo = core_if->data_fifo[ep->num]; -+ -+ -+ DWC_DEBUGPL((DBG_PCDV|DBG_CILV), "fifo=%p buff=%p *p=%08x bc=%d\n", fifo, data_buff, *data_buff, byte_count); -+ -+ if (!dma) { -+ for (i=0; i<dword_count; i++, data_buff++) { -+ dwc_write_reg32(fifo, *data_buff); -+ } -+ } -+ -+ ep->xfer_count += byte_count; -+ ep->xfer_buff += byte_count; -+ ep->dma_addr += byte_count; -+} -+ -+/** -+ * Set the EP STALL. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to set the stall on. -+ */ -+void dwc_otg_ep_set_stall(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ depctl_data_t depctl; -+ volatile uint32_t *depctl_addr; -+ -+ DWC_DEBUGPL(DBG_PCDV, "%s ep%d-%s1\n", __func__, ep->num, -+ (ep->is_in?"IN":"OUT")); -+ -+ DWC_PRINT("%s ep%d-%s\n", __func__, ep->num, -+ (ep->is_in?"in":"out")); -+ -+ if (ep->is_in == 1) { -+ depctl_addr = &(core_if->dev_if->in_ep_regs[ep->num]->diepctl); -+ depctl.d32 = dwc_read_reg32(depctl_addr); -+ -+ /* set the disable and stall bits */ -+#if 0 -+//epdis is set here but not cleared at latter dwc_otg_ep_clear_stall, -+//which cause the testusb item 13 failed(Host:pc, device: otg device) -+ if (depctl.b.epena) { -+ depctl.b.epdis = 1; -+ } -+#endif -+ depctl.b.stall = 1; -+ dwc_write_reg32(depctl_addr, depctl.d32); -+ } -+ else { -+ depctl_addr = &(core_if->dev_if->out_ep_regs[ep->num]->doepctl); -+ depctl.d32 = dwc_read_reg32(depctl_addr); -+ -+ /* set the stall bit */ -+ depctl.b.stall = 1; -+ dwc_write_reg32(depctl_addr, depctl.d32); -+ } -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s: DEPCTL(%.8x)=%0x\n",__func__,(u32)depctl_addr,dwc_read_reg32(depctl_addr)); -+ -+ return; -+} -+ -+/** -+ * Clear the EP STALL. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to clear stall from. -+ */ -+void dwc_otg_ep_clear_stall(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ depctl_data_t depctl; -+ volatile uint32_t *depctl_addr; -+ -+ DWC_DEBUGPL(DBG_PCD, "%s ep%d-%s\n", __func__, ep->num, -+ (ep->is_in?"IN":"OUT")); -+ -+ if (ep->is_in == 1) { -+ depctl_addr = &(core_if->dev_if->in_ep_regs[ep->num]->diepctl); -+ } -+ else { -+ depctl_addr = &(core_if->dev_if->out_ep_regs[ep->num]->doepctl); -+ } -+ -+ depctl.d32 = dwc_read_reg32(depctl_addr); -+ -+ /* clear the stall bits */ -+ depctl.b.stall = 0; -+ -+ /* -+ * USB Spec 9.4.5: For endpoints using data toggle, regardless -+ * of whether an endpoint has the Halt feature set, a -+ * ClearFeature(ENDPOINT_HALT) request always results in the -+ * data toggle being reinitialized to DATA0. -+ */ -+ if (ep->type == DWC_OTG_EP_TYPE_INTR || -+ ep->type == DWC_OTG_EP_TYPE_BULK) { -+ depctl.b.setd0pid = 1; /* DATA0 */ -+ } -+ -+ dwc_write_reg32(depctl_addr, depctl.d32); -+ DWC_DEBUGPL(DBG_PCD,"DEPCTL=%0x\n",dwc_read_reg32(depctl_addr)); -+ return; -+} -+ -+/** -+ * This function reads a packet from the Rx FIFO into the destination -+ * buffer. To read SETUP data use dwc_otg_read_setup_packet. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param dest Destination buffer for the packet. -+ * @param bytes Number of bytes to copy to the destination. -+ */ -+void dwc_otg_read_packet(dwc_otg_core_if_t *core_if, -+ uint8_t *dest, -+ uint16_t bytes) -+{ -+ int i; -+ int word_count = (bytes + 3) / 4; -+ -+ volatile uint32_t *fifo = core_if->data_fifo[0]; -+ uint32_t *data_buff = (uint32_t *)dest; -+ -+ /** -+ * @todo Account for the case where _dest is not dword aligned. This -+ * requires reading data from the FIFO into a uint32_t temp buffer, -+ * then moving it into the data buffer. -+ */ -+ -+ DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p,%d)\n", __func__, -+ core_if, dest, bytes); -+ -+ for (i=0; i<word_count; i++, data_buff++) -+ { -+ *data_buff = dwc_read_reg32(fifo); -+ } -+ -+ return; -+} -+ -+ -+ -+/** -+ * This functions reads the device registers and prints them -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+void dwc_otg_dump_dev_registers(dwc_otg_core_if_t *core_if) -+{ -+ int i; -+ volatile uint32_t *addr; -+ -+ DWC_PRINT("Device Global Registers\n"); -+ addr=&core_if->dev_if->dev_global_regs->dcfg; -+ DWC_PRINT("DCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->dev_global_regs->dctl; -+ DWC_PRINT("DCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->dev_global_regs->dsts; -+ DWC_PRINT("DSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->dev_global_regs->diepmsk; -+ DWC_PRINT("DIEPMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->dev_global_regs->doepmsk; -+ DWC_PRINT("DOEPMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->dev_global_regs->daint; -+ DWC_PRINT("DAINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->dev_global_regs->daintmsk; -+ DWC_PRINT("DAINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->dev_global_regs->dtknqr1; -+ DWC_PRINT("DTKNQR1 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ if (core_if->hwcfg2.b.dev_token_q_depth > 6) { -+ addr=&core_if->dev_if->dev_global_regs->dtknqr2; -+ DWC_PRINT("DTKNQR2 @0x%08X : 0x%08X\n", -+ (uint32_t)addr,dwc_read_reg32(addr)); -+ } -+ -+ addr=&core_if->dev_if->dev_global_regs->dvbusdis; -+ DWC_PRINT("DVBUSID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ -+ addr=&core_if->dev_if->dev_global_regs->dvbuspulse; -+ DWC_PRINT("DVBUSPULSE @0x%08X : 0x%08X\n", -+ (uint32_t)addr,dwc_read_reg32(addr)); -+ -+ if (core_if->hwcfg2.b.dev_token_q_depth > 14) { -+ addr=&core_if->dev_if->dev_global_regs->dtknqr3_dthrctl; -+ DWC_PRINT("DTKNQR3_DTHRCTL @0x%08X : 0x%08X\n", -+ (uint32_t)addr, dwc_read_reg32(addr)); -+ } -+/* -+ if (core_if->hwcfg2.b.dev_token_q_depth > 22) { -+ addr=&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk; -+ DWC_PRINT("DTKNQR4 @0x%08X : 0x%08X\n", -+ (uint32_t)addr, dwc_read_reg32(addr)); -+ } -+*/ -+ addr=&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk; -+ DWC_PRINT("FIFOEMPMSK @0x%08X : 0x%08X\n", (uint32_t)addr, dwc_read_reg32(addr)); -+ -+ addr=&core_if->dev_if->dev_global_regs->deachint; -+ DWC_PRINT("DEACHINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->dev_global_regs->deachintmsk; -+ DWC_PRINT("DEACHINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ -+ for (i=0; i<= core_if->dev_if->num_in_eps; i++) { -+ addr=&core_if->dev_if->dev_global_regs->diepeachintmsk[i]; -+ DWC_PRINT("DIEPEACHINTMSK[%d] @0x%08X : 0x%08X\n", i, (uint32_t)addr, dwc_read_reg32(addr)); -+ } -+ -+ -+ for (i=0; i<= core_if->dev_if->num_out_eps; i++) { -+ addr=&core_if->dev_if->dev_global_regs->doepeachintmsk[i]; -+ DWC_PRINT("DOEPEACHINTMSK[%d] @0x%08X : 0x%08X\n", i, (uint32_t)addr, dwc_read_reg32(addr)); -+ } -+ -+ for (i=0; i<= core_if->dev_if->num_in_eps; i++) { -+ DWC_PRINT("Device IN EP %d Registers\n", i); -+ addr=&core_if->dev_if->in_ep_regs[i]->diepctl; -+ DWC_PRINT("DIEPCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->in_ep_regs[i]->diepint; -+ DWC_PRINT("DIEPINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->in_ep_regs[i]->dieptsiz; -+ DWC_PRINT("DIETSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->in_ep_regs[i]->diepdma; -+ DWC_PRINT("DIEPDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->in_ep_regs[i]->dtxfsts; -+ DWC_PRINT("DTXFSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ //reading depdmab in non desc dma mode would halt the ahb bus... -+ if(core_if->dma_desc_enable){ -+ addr=&core_if->dev_if->in_ep_regs[i]->diepdmab; -+ DWC_PRINT("DIEPDMAB @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ } -+ } -+ -+ -+ for (i=0; i<= core_if->dev_if->num_out_eps; i++) { -+ DWC_PRINT("Device OUT EP %d Registers\n", i); -+ addr=&core_if->dev_if->out_ep_regs[i]->doepctl; -+ DWC_PRINT("DOEPCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->out_ep_regs[i]->doepfn; -+ DWC_PRINT("DOEPFN @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->out_ep_regs[i]->doepint; -+ DWC_PRINT("DOEPINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->out_ep_regs[i]->doeptsiz; -+ DWC_PRINT("DOETSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->dev_if->out_ep_regs[i]->doepdma; -+ DWC_PRINT("DOEPDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ -+ //reading depdmab in non desc dma mode would halt the ahb bus... -+ if(core_if->dma_desc_enable){ -+ addr=&core_if->dev_if->out_ep_regs[i]->doepdmab; -+ DWC_PRINT("DOEPDMAB @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ } -+ -+ } -+ -+ -+ -+ return; -+} -+ -+/** -+ * This functions reads the SPRAM and prints its content -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+void dwc_otg_dump_spram(dwc_otg_core_if_t *core_if) -+{ -+ volatile uint8_t *addr, *start_addr, *end_addr; -+ -+ DWC_PRINT("SPRAM Data:\n"); -+ start_addr = (void*)core_if->core_global_regs; -+ DWC_PRINT("Base Address: 0x%8X\n", (uint32_t)start_addr); -+ start_addr += 0x00028000; -+ end_addr=(void*)core_if->core_global_regs; -+ end_addr += 0x000280e0; -+ -+ for(addr = start_addr; addr < end_addr; addr+=16) -+ { -+ DWC_PRINT("0x%8X:\t%2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X\n", (uint32_t)addr, -+ addr[0], -+ addr[1], -+ addr[2], -+ addr[3], -+ addr[4], -+ addr[5], -+ addr[6], -+ addr[7], -+ addr[8], -+ addr[9], -+ addr[10], -+ addr[11], -+ addr[12], -+ addr[13], -+ addr[14], -+ addr[15] -+ ); -+ } -+ -+ return; -+} -+/** -+ * This function reads the host registers and prints them -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+void dwc_otg_dump_host_registers(dwc_otg_core_if_t *core_if) -+{ -+ int i; -+ volatile uint32_t *addr; -+ -+ DWC_PRINT("Host Global Registers\n"); -+ addr=&core_if->host_if->host_global_regs->hcfg; -+ DWC_PRINT("HCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->host_if->host_global_regs->hfir; -+ DWC_PRINT("HFIR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->host_if->host_global_regs->hfnum; -+ DWC_PRINT("HFNUM @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->host_if->host_global_regs->hptxsts; -+ DWC_PRINT("HPTXSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->host_if->host_global_regs->haint; -+ DWC_PRINT("HAINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->host_if->host_global_regs->haintmsk; -+ DWC_PRINT("HAINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=core_if->host_if->hprt0; -+ DWC_PRINT("HPRT0 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ -+ for (i=0; i<core_if->core_params->host_channels; i++) -+ { -+ DWC_PRINT("Host Channel %d Specific Registers\n", i); -+ addr=&core_if->host_if->hc_regs[i]->hcchar; -+ DWC_PRINT("HCCHAR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->host_if->hc_regs[i]->hcsplt; -+ DWC_PRINT("HCSPLT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->host_if->hc_regs[i]->hcint; -+ DWC_PRINT("HCINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->host_if->hc_regs[i]->hcintmsk; -+ DWC_PRINT("HCINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->host_if->hc_regs[i]->hctsiz; -+ DWC_PRINT("HCTSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->host_if->hc_regs[i]->hcdma; -+ DWC_PRINT("HCDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ } -+ return; -+} -+ -+/** -+ * This function reads the core global registers and prints them -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+void dwc_otg_dump_global_registers(dwc_otg_core_if_t *core_if) -+{ -+ int i,size; -+ char* str; -+ volatile uint32_t *addr; -+ -+ DWC_PRINT("Core Global Registers\n"); -+ addr=&core_if->core_global_regs->gotgctl; -+ DWC_PRINT("GOTGCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->gotgint; -+ DWC_PRINT("GOTGINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->gahbcfg; -+ DWC_PRINT("GAHBCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->gusbcfg; -+ DWC_PRINT("GUSBCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->grstctl; -+ DWC_PRINT("GRSTCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->gintsts; -+ DWC_PRINT("GINTSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->gintmsk; -+ DWC_PRINT("GINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->grxstsr; -+ DWC_PRINT("GRXSTSR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ //addr=&core_if->core_global_regs->grxstsp; -+ //DWC_PRINT("GRXSTSP @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->grxfsiz; -+ DWC_PRINT("GRXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->gnptxfsiz; -+ DWC_PRINT("GNPTXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->gnptxsts; -+ DWC_PRINT("GNPTXSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->gi2cctl; -+ DWC_PRINT("GI2CCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->gpvndctl; -+ DWC_PRINT("GPVNDCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->ggpio; -+ DWC_PRINT("GGPIO @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->guid; -+ DWC_PRINT("GUID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->gsnpsid; -+ DWC_PRINT("GSNPSID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->ghwcfg1; -+ DWC_PRINT("GHWCFG1 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->ghwcfg2; -+ DWC_PRINT("GHWCFG2 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->ghwcfg3; -+ DWC_PRINT("GHWCFG3 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->ghwcfg4; -+ DWC_PRINT("GHWCFG4 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ addr=&core_if->core_global_regs->hptxfsiz; -+ DWC_PRINT("HPTXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); -+ -+ size=(core_if->hwcfg4.b.ded_fifo_en)? -+ core_if->hwcfg4.b.num_in_eps:core_if->hwcfg4.b.num_dev_perio_in_ep; -+ str=(core_if->hwcfg4.b.ded_fifo_en)?"DIEPTXF":"DPTXFSIZ"; -+ for (i=0; i<size; i++) -+ { -+ addr=&core_if->core_global_regs->dptxfsiz_dieptxf[i]; -+ DWC_PRINT("%s[%d] @0x%08X : 0x%08X\n",str,i,(uint32_t)addr,dwc_read_reg32(addr)); -+ } -+} -+ -+/** -+ * Flush a Tx FIFO. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param num Tx FIFO to flush. -+ */ -+void dwc_otg_flush_tx_fifo(dwc_otg_core_if_t *core_if, -+ const int num) -+{ -+ dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; -+ volatile grstctl_t greset = { .d32 = 0}; -+ int count = 0; -+ -+ DWC_DEBUGPL((DBG_CIL|DBG_PCDV), "Flush Tx FIFO %d\n", num); -+ -+ greset.b.txfflsh = 1; -+ greset.b.txfnum = num; -+ dwc_write_reg32(&global_regs->grstctl, greset.d32); -+ -+ do { -+ greset.d32 = dwc_read_reg32(&global_regs->grstctl); -+ if (++count > 10000) { -+ DWC_WARN("%s() HANG! GRSTCTL=%0x GNPTXSTS=0x%08x\n", -+ __func__, greset.d32, -+ dwc_read_reg32(&global_regs->gnptxsts)); -+ break; -+ } -+ } -+ while (greset.b.txfflsh == 1); -+ -+ /* Wait for 3 PHY Clocks*/ -+ UDELAY(1); -+} -+ -+/** -+ * Flush Rx FIFO. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+void dwc_otg_flush_rx_fifo(dwc_otg_core_if_t *core_if) -+{ -+ dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; -+ volatile grstctl_t greset = { .d32 = 0}; -+ int count = 0; -+ -+ DWC_DEBUGPL((DBG_CIL|DBG_PCDV), "%s\n", __func__); -+ /* -+ * -+ */ -+ greset.b.rxfflsh = 1; -+ dwc_write_reg32(&global_regs->grstctl, greset.d32); -+ -+ do { -+ greset.d32 = dwc_read_reg32(&global_regs->grstctl); -+ if (++count > 10000) { -+ DWC_WARN("%s() HANG! GRSTCTL=%0x\n", __func__, -+ greset.d32); -+ break; -+ } -+ } -+ while (greset.b.rxfflsh == 1); -+ -+ /* Wait for 3 PHY Clocks*/ -+ UDELAY(1); -+} -+ -+/** -+ * Do core a soft reset of the core. Be careful with this because it -+ * resets all the internal state machines of the core. -+ */ -+void dwc_otg_core_reset(dwc_otg_core_if_t *core_if) -+{ -+ dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; -+ volatile grstctl_t greset = { .d32 = 0}; -+ int count = 0; -+ -+ DWC_DEBUGPL(DBG_CILV, "%s\n", __func__); -+ /* Wait for AHB master IDLE state. */ -+ do { -+ UDELAY(10); -+ greset.d32 = dwc_read_reg32(&global_regs->grstctl); -+ if (++count > 100000) { -+ DWC_WARN("%s() HANG! AHB Idle GRSTCTL=%0x\n", __func__, -+ greset.d32); -+ return; -+ } -+ } -+ while (greset.b.ahbidle == 0); -+ -+ /* Core Soft Reset */ -+ count = 0; -+ greset.b.csftrst = 1; -+ dwc_write_reg32(&global_regs->grstctl, greset.d32); -+ do { -+ greset.d32 = dwc_read_reg32(&global_regs->grstctl); -+ if (++count > 10000) { -+ DWC_WARN("%s() HANG! Soft Reset GRSTCTL=%0x\n", __func__, -+ greset.d32); -+ break; -+ } -+ } -+ while (greset.b.csftrst == 1); -+ -+ /* Wait for 3 PHY Clocks*/ -+ MDELAY(100); -+ -+ DWC_DEBUGPL(DBG_CILV, "GINTSTS=%.8x\n", dwc_read_reg32(&global_regs->gintsts)); -+ DWC_DEBUGPL(DBG_CILV, "GINTSTS=%.8x\n", dwc_read_reg32(&global_regs->gintsts)); -+ DWC_DEBUGPL(DBG_CILV, "GINTSTS=%.8x\n", dwc_read_reg32(&global_regs->gintsts)); -+ -+} -+ -+ -+ -+/** -+ * Register HCD callbacks. The callbacks are used to start and stop -+ * the HCD for interrupt processing. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param cb the HCD callback structure. -+ * @param p pointer to be passed to callback function (usb_hcd*). -+ */ -+void dwc_otg_cil_register_hcd_callbacks(dwc_otg_core_if_t *core_if, -+ dwc_otg_cil_callbacks_t *cb, -+ void *p) -+{ -+ core_if->hcd_cb = cb; -+ cb->p = p; -+} -+ -+/** -+ * Register PCD callbacks. The callbacks are used to start and stop -+ * the PCD for interrupt processing. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param cb the PCD callback structure. -+ * @param p pointer to be passed to callback function (pcd*). -+ */ -+void dwc_otg_cil_register_pcd_callbacks(dwc_otg_core_if_t *core_if, -+ dwc_otg_cil_callbacks_t *cb, -+ void *p) -+{ -+ core_if->pcd_cb = cb; -+ cb->p = p; -+} -+ -+#ifdef DWC_EN_ISOC -+ -+/** -+ * This function writes isoc data per 1 (micro)frame into tx fifo -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to start the transfer on. -+ * -+ */ -+void write_isoc_frame_data(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ dwc_otg_dev_in_ep_regs_t *ep_regs; -+ dtxfsts_data_t txstatus = {.d32 = 0}; -+ uint32_t len = 0; -+ uint32_t dwords; -+ -+ ep->xfer_len = ep->data_per_frame; -+ ep->xfer_count = 0; -+ -+ ep_regs = core_if->dev_if->in_ep_regs[ep->num]; -+ -+ len = ep->xfer_len - ep->xfer_count; -+ -+ if (len > ep->maxpacket) { -+ len = ep->maxpacket; -+ } -+ -+ dwords = (len + 3)/4; -+ -+ /* While there is space in the queue and space in the FIFO and -+ * More data to tranfer, Write packets to the Tx FIFO */ -+ txstatus.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dtxfsts); -+ DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n",ep->num,txstatus.d32); -+ -+ while (txstatus.b.txfspcavail > dwords && -+ ep->xfer_count < ep->xfer_len && -+ ep->xfer_len != 0) { -+ /* Write the FIFO */ -+ dwc_otg_ep_write_packet(core_if, ep, 0); -+ -+ len = ep->xfer_len - ep->xfer_count; -+ if (len > ep->maxpacket) { -+ len = ep->maxpacket; -+ } -+ -+ dwords = (len + 3)/4; -+ txstatus.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dtxfsts); -+ DWC_DEBUGPL(DBG_PCDV,"dtxfsts[%d]=0x%08x\n", ep->num, txstatus.d32); -+ } -+} -+ -+ -+/** -+ * This function initializes a descriptor chain for Isochronous transfer -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to start the transfer on. -+ * -+ */ -+void dwc_otg_iso_ep_start_frm_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ deptsiz_data_t deptsiz = { .d32 = 0 }; -+ depctl_data_t depctl = { .d32 = 0 }; -+ dsts_data_t dsts = { .d32 = 0 }; -+ volatile uint32_t *addr; -+ -+ if(ep->is_in) { -+ addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; -+ } else { -+ addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; -+ } -+ -+ ep->xfer_len = ep->data_per_frame; -+ ep->xfer_count = 0; -+ ep->xfer_buff = ep->cur_pkt_addr; -+ ep->dma_addr = ep->cur_pkt_dma_addr; -+ -+ if(ep->is_in) { -+ /* Program the transfer size and packet count -+ * as follows: xfersize = N * maxpacket + -+ * short_packet pktcnt = N + (short_packet -+ * exist ? 1 : 0) -+ */ -+ deptsiz.b.xfersize = ep->xfer_len; -+ deptsiz.b.pktcnt = -+ (ep->xfer_len - 1 + ep->maxpacket) / -+ ep->maxpacket; -+ deptsiz.b.mc = deptsiz.b.pktcnt; -+ dwc_write_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz, deptsiz.d32); -+ -+ /* Write the DMA register */ -+ if (core_if->dma_enable) { -+ dwc_write_reg32 (&(core_if->dev_if->in_ep_regs[ep->num]->diepdma), (uint32_t)ep->dma_addr); -+ } -+ } else { -+ deptsiz.b.pktcnt = -+ (ep->xfer_len + (ep->maxpacket - 1)) / -+ ep->maxpacket; -+ deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket; -+ -+ dwc_write_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doeptsiz, deptsiz.d32); -+ -+ if (core_if->dma_enable) { -+ dwc_write_reg32 (&(core_if->dev_if->out_ep_regs[ep->num]->doepdma), -+ (uint32_t)ep->dma_addr); -+ } -+ } -+ -+ -+ /** Enable endpoint, clear nak */ -+ -+ depctl.d32 = 0; -+ if(ep->bInterval == 1) { -+ dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); -+ ep->next_frame = dsts.b.soffn + ep->bInterval; -+ -+ if(ep->next_frame & 0x1) { -+ depctl.b.setd1pid = 1; -+ } else { -+ depctl.b.setd0pid = 1; -+ } -+ } else { -+ ep->next_frame += ep->bInterval; -+ -+ if(ep->next_frame & 0x1) { -+ depctl.b.setd1pid = 1; -+ } else { -+ depctl.b.setd0pid = 1; -+ } -+ } -+ depctl.b.epena = 1; -+ depctl.b.cnak = 1; -+ -+ dwc_modify_reg32(addr, 0, depctl.d32); -+ depctl.d32 = dwc_read_reg32(addr); -+ -+ if(ep->is_in && core_if->dma_enable == 0) { -+ write_isoc_frame_data(core_if, ep); -+ } -+ -+} -+ -+#endif //DWC_EN_ISOC ---- /dev/null -+++ b/drivers/usb/dwc/otg_cil.h -@@ -0,0 +1,1106 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil.h $ -+ * $Revision: #91 $ -+ * $Date: 2008/09/19 $ -+ * $Change: 1099526 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+ -+#if !defined(__DWC_CIL_H__) -+#define __DWC_CIL_H__ -+ -+#include <linux/workqueue.h> -+#include <linux/version.h> -+#include <asm/param.h> -+//#include <asm/arch/regs-irq.h> -+ -+#include "otg_plat.h" -+#include "otg_regs.h" -+#ifdef DEBUG -+#include "linux/timer.h" -+#endif -+ -+/** -+ * @file -+ * This file contains the interface to the Core Interface Layer. -+ */ -+ -+ -+/** Macros defined for DWC OTG HW Release verison */ -+#define OTG_CORE_REV_2_00 0x4F542000 -+#define OTG_CORE_REV_2_60a 0x4F54260A -+#define OTG_CORE_REV_2_71a 0x4F54271A -+#define OTG_CORE_REV_2_72a 0x4F54272A -+ -+/** -+*/ -+typedef struct iso_pkt_info -+{ -+ uint32_t offset; -+ uint32_t length; -+ int32_t status; -+} iso_pkt_info_t; -+/** -+ * The <code>dwc_ep</code> structure represents the state of a single -+ * endpoint when acting in device mode. It contains the data items -+ * needed for an endpoint to be activated and transfer packets. -+ */ -+typedef struct dwc_ep -+{ -+ /** EP number used for register address lookup */ -+ uint8_t num; -+ /** EP direction 0 = OUT */ -+ unsigned is_in : 1; -+ /** EP active. */ -+ unsigned active : 1; -+ -+ /** Periodic Tx FIFO # for IN EPs For INTR EP set to 0 to use non-periodic Tx FIFO -+ If dedicated Tx FIFOs are enabled for all IN Eps - Tx FIFO # FOR IN EPs*/ -+ unsigned tx_fifo_num : 4; -+ /** EP type: 0 - Control, 1 - ISOC, 2 - BULK, 3 - INTR */ -+ unsigned type : 2; -+#define DWC_OTG_EP_TYPE_CONTROL 0 -+#define DWC_OTG_EP_TYPE_ISOC 1 -+#define DWC_OTG_EP_TYPE_BULK 2 -+#define DWC_OTG_EP_TYPE_INTR 3 -+ -+ /** DATA start PID for INTR and BULK EP */ -+ unsigned data_pid_start : 1; -+ /** Frame (even/odd) for ISOC EP */ -+ unsigned even_odd_frame : 1; -+ /** Max Packet bytes */ -+ unsigned maxpacket : 11; -+ -+ /** Max Transfer size */ -+ unsigned maxxfer : 16; -+ -+ /** @name Transfer state */ -+ /** @{ */ -+ -+ /** -+ * Pointer to the beginning of the transfer buffer -- do not modify -+ * during transfer. -+ */ -+ -+ uint32_t dma_addr; -+ -+ uint32_t dma_desc_addr; -+ dwc_otg_dma_desc_t* desc_addr; -+ -+ -+ uint8_t *start_xfer_buff; -+ /** pointer to the transfer buffer */ -+ uint8_t *xfer_buff; -+ /** Number of bytes to transfer */ -+ unsigned xfer_len : 19; -+ /** Number of bytes transferred. */ -+ unsigned xfer_count : 19; -+ /** Sent ZLP */ -+ unsigned sent_zlp : 1; -+ /** Total len for control transfer */ -+ unsigned total_len : 19; -+ -+ /** stall clear flag */ -+ unsigned stall_clear_flag : 1; -+ -+ /** Allocated DMA Desc count */ -+ uint32_t desc_cnt; -+ -+ uint32_t aligned_dma_addr; -+ uint32_t aligned_buf_size; -+ uint8_t *aligned_buf; -+ -+ -+#ifdef DWC_EN_ISOC -+ /** -+ * Variables specific for ISOC EPs -+ * -+ */ -+ /** DMA addresses of ISOC buffers */ -+ uint32_t dma_addr0; -+ uint32_t dma_addr1; -+ -+ uint32_t iso_dma_desc_addr; -+ dwc_otg_dma_desc_t* iso_desc_addr; -+ -+ /** pointer to the transfer buffers */ -+ uint8_t *xfer_buff0; -+ uint8_t *xfer_buff1; -+ -+ /** number of ISOC Buffer is processing */ -+ uint32_t proc_buf_num; -+ /** Interval of ISOC Buffer processing */ -+ uint32_t buf_proc_intrvl; -+ /** Data size for regular frame */ -+ uint32_t data_per_frame; -+ -+ /* todo - pattern data support is to be implemented in the future */ -+ /** Data size for pattern frame */ -+ uint32_t data_pattern_frame; -+ /** Frame number of pattern data */ -+ uint32_t sync_frame; -+ -+ /** bInterval */ -+ uint32_t bInterval; -+ /** ISO Packet number per frame */ -+ uint32_t pkt_per_frm; -+ /** Next frame num for which will be setup DMA Desc */ -+ uint32_t next_frame; -+ /** Number of packets per buffer processing */ -+ uint32_t pkt_cnt; -+ /** Info for all isoc packets */ -+ iso_pkt_info_t *pkt_info; -+ /** current pkt number */ -+ uint32_t cur_pkt; -+ /** current pkt number */ -+ uint8_t *cur_pkt_addr; -+ /** current pkt number */ -+ uint32_t cur_pkt_dma_addr; -+#endif //DWC_EN_ISOC -+/** @} */ -+} dwc_ep_t; -+ -+/* -+ * Reasons for halting a host channel. -+ */ -+typedef enum dwc_otg_halt_status -+{ -+ DWC_OTG_HC_XFER_NO_HALT_STATUS, -+ DWC_OTG_HC_XFER_COMPLETE, -+ DWC_OTG_HC_XFER_URB_COMPLETE, -+ DWC_OTG_HC_XFER_ACK, -+ DWC_OTG_HC_XFER_NAK, -+ DWC_OTG_HC_XFER_NYET, -+ DWC_OTG_HC_XFER_STALL, -+ DWC_OTG_HC_XFER_XACT_ERR, -+ DWC_OTG_HC_XFER_FRAME_OVERRUN, -+ DWC_OTG_HC_XFER_BABBLE_ERR, -+ DWC_OTG_HC_XFER_DATA_TOGGLE_ERR, -+ DWC_OTG_HC_XFER_AHB_ERR, -+ DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE, -+ DWC_OTG_HC_XFER_URB_DEQUEUE -+} dwc_otg_halt_status_e; -+ -+/** -+ * Host channel descriptor. This structure represents the state of a single -+ * host channel when acting in host mode. It contains the data items needed to -+ * transfer packets to an endpoint via a host channel. -+ */ -+typedef struct dwc_hc -+{ -+ /** Host channel number used for register address lookup */ -+ uint8_t hc_num; -+ -+ /** Device to access */ -+ unsigned dev_addr : 7; -+ -+ /** EP to access */ -+ unsigned ep_num : 4; -+ -+ /** EP direction. 0: OUT, 1: IN */ -+ unsigned ep_is_in : 1; -+ -+ /** -+ * EP speed. -+ * One of the following values: -+ * - DWC_OTG_EP_SPEED_LOW -+ * - DWC_OTG_EP_SPEED_FULL -+ * - DWC_OTG_EP_SPEED_HIGH -+ */ -+ unsigned speed : 2; -+#define DWC_OTG_EP_SPEED_LOW 0 -+#define DWC_OTG_EP_SPEED_FULL 1 -+#define DWC_OTG_EP_SPEED_HIGH 2 -+ -+ /** -+ * Endpoint type. -+ * One of the following values: -+ * - DWC_OTG_EP_TYPE_CONTROL: 0 -+ * - DWC_OTG_EP_TYPE_ISOC: 1 -+ * - DWC_OTG_EP_TYPE_BULK: 2 -+ * - DWC_OTG_EP_TYPE_INTR: 3 -+ */ -+ unsigned ep_type : 2; -+ -+ /** Max packet size in bytes */ -+ unsigned max_packet : 11; -+ -+ /** -+ * PID for initial transaction. -+ * 0: DATA0,<br> -+ * 1: DATA2,<br> -+ * 2: DATA1,<br> -+ * 3: MDATA (non-Control EP), -+ * SETUP (Control EP) -+ */ -+ unsigned data_pid_start : 2; -+#define DWC_OTG_HC_PID_DATA0 0 -+#define DWC_OTG_HC_PID_DATA2 1 -+#define DWC_OTG_HC_PID_DATA1 2 -+#define DWC_OTG_HC_PID_MDATA 3 -+#define DWC_OTG_HC_PID_SETUP 3 -+ -+ /** Number of periodic transactions per (micro)frame */ -+ unsigned multi_count: 2; -+ -+ /** @name Transfer State */ -+ /** @{ */ -+ -+ /** Pointer to the current transfer buffer position. */ -+ uint8_t *xfer_buff; -+ /** Total number of bytes to transfer. */ -+ uint32_t xfer_len; -+ /** Number of bytes transferred so far. */ -+ uint32_t xfer_count; -+ /** Packet count at start of transfer.*/ -+ uint16_t start_pkt_count; -+ -+ /** -+ * Flag to indicate whether the transfer has been started. Set to 1 if -+ * it has been started, 0 otherwise. -+ */ -+ uint8_t xfer_started; -+ -+ /** -+ * Set to 1 to indicate that a PING request should be issued on this -+ * channel. If 0, process normally. -+ */ -+ uint8_t do_ping; -+ -+ /** -+ * Set to 1 to indicate that the error count for this transaction is -+ * non-zero. Set to 0 if the error count is 0. -+ */ -+ uint8_t error_state; -+ -+ /** -+ * Set to 1 to indicate that this channel should be halted the next -+ * time a request is queued for the channel. This is necessary in -+ * slave mode if no request queue space is available when an attempt -+ * is made to halt the channel. -+ */ -+ uint8_t halt_on_queue; -+ -+ /** -+ * Set to 1 if the host channel has been halted, but the core is not -+ * finished flushing queued requests. Otherwise 0. -+ */ -+ uint8_t halt_pending; -+ -+ /** -+ * Reason for halting the host channel. -+ */ -+ dwc_otg_halt_status_e halt_status; -+ -+ /* -+ * Split settings for the host channel -+ */ -+ uint8_t do_split; /**< Enable split for the channel */ -+ uint8_t complete_split; /**< Enable complete split */ -+ uint8_t hub_addr; /**< Address of high speed hub */ -+ -+ uint8_t port_addr; /**< Port of the low/full speed device */ -+ /** Split transaction position -+ * One of the following values: -+ * - DWC_HCSPLIT_XACTPOS_MID -+ * - DWC_HCSPLIT_XACTPOS_BEGIN -+ * - DWC_HCSPLIT_XACTPOS_END -+ * - DWC_HCSPLIT_XACTPOS_ALL */ -+ uint8_t xact_pos; -+ -+ /** Set when the host channel does a short read. */ -+ uint8_t short_read; -+ -+ /** -+ * Number of requests issued for this channel since it was assigned to -+ * the current transfer (not counting PINGs). -+ */ -+ uint8_t requests; -+ -+ /** -+ * Queue Head for the transfer being processed by this channel. -+ */ -+ struct dwc_otg_qh *qh; -+ -+ /** @} */ -+ -+ /** Entry in list of host channels. */ -+ struct list_head hc_list_entry; -+} dwc_hc_t; -+ -+/** -+ * The following parameters may be specified when starting the module. These -+ * parameters define how the DWC_otg controller should be configured. -+ * Parameter values are passed to the CIL initialization function -+ * dwc_otg_cil_init. -+ */ -+typedef struct dwc_otg_core_params -+{ -+ int32_t opt; -+#define dwc_param_opt_default 1 -+ -+ /** -+ * Specifies the OTG capabilities. The driver will automatically -+ * detect the value for this parameter if none is specified. -+ * 0 - HNP and SRP capable (default) -+ * 1 - SRP Only capable -+ * 2 - No HNP/SRP capable -+ */ -+ int32_t otg_cap; -+#define DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE 0 -+#define DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE 1 -+#define DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE 2 -+//#define dwc_param_otg_cap_default DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE -+#define dwc_param_otg_cap_default DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE -+ -+ /** -+ * Specifies whether to use slave or DMA mode for accessing the data -+ * FIFOs. The driver will automatically detect the value for this -+ * parameter if none is specified. -+ * 0 - Slave -+ * 1 - DMA (default, if available) -+ */ -+ int32_t dma_enable; -+#define dwc_param_dma_enable_default 1 -+ -+ /** -+ * When DMA mode is enabled specifies whether to use address DMA or DMA Descritor mode for accessing the data -+ * FIFOs in device mode. The driver will automatically detect the value for this -+ * parameter if none is specified. -+ * 0 - address DMA -+ * 1 - DMA Descriptor(default, if available) -+ */ -+ int32_t dma_desc_enable; -+#define dwc_param_dma_desc_enable_default 0 -+ /** The DMA Burst size (applicable only for External DMA -+ * Mode). 1, 4, 8 16, 32, 64, 128, 256 (default 32) -+ */ -+ int32_t dma_burst_size; /* Translate this to GAHBCFG values */ -+//#define dwc_param_dma_burst_size_default 32 -+#define dwc_param_dma_burst_size_default 1 -+ -+ /** -+ * Specifies the maximum speed of operation in host and device mode. -+ * The actual speed depends on the speed of the attached device and -+ * the value of phy_type. The actual speed depends on the speed of the -+ * attached device. -+ * 0 - High Speed (default) -+ * 1 - Full Speed -+ */ -+ int32_t speed; -+#define dwc_param_speed_default 0 -+#define DWC_SPEED_PARAM_HIGH 0 -+#define DWC_SPEED_PARAM_FULL 1 -+ -+ /** Specifies whether low power mode is supported when attached -+ * to a Full Speed or Low Speed device in host mode. -+ * 0 - Don't support low power mode (default) -+ * 1 - Support low power mode -+ */ -+ int32_t host_support_fs_ls_low_power; -+#define dwc_param_host_support_fs_ls_low_power_default 0 -+ -+ /** Specifies the PHY clock rate in low power mode when connected to a -+ * Low Speed device in host mode. This parameter is applicable only if -+ * HOST_SUPPORT_FS_LS_LOW_POWER is enabled. If PHY_TYPE is set to FS -+ * then defaults to 6 MHZ otherwise 48 MHZ. -+ * -+ * 0 - 48 MHz -+ * 1 - 6 MHz -+ */ -+ int32_t host_ls_low_power_phy_clk; -+#define dwc_param_host_ls_low_power_phy_clk_default 0 -+#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ 0 -+#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ 1 -+ -+ /** -+ * 0 - Use cC FIFO size parameters -+ * 1 - Allow dynamic FIFO sizing (default) -+ */ -+ int32_t enable_dynamic_fifo; -+#define dwc_param_enable_dynamic_fifo_default 1 -+ -+ /** Total number of 4-byte words in the data FIFO memory. This -+ * memory includes the Rx FIFO, non-periodic Tx FIFO, and periodic -+ * Tx FIFOs. -+ * 32 to 32768 (default 8192) -+ * Note: The total FIFO memory depth in the FPGA configuration is 8192. -+ */ -+ int32_t data_fifo_size; -+#define dwc_param_data_fifo_size_default 8192 -+ -+ /** Number of 4-byte words in the Rx FIFO in device mode when dynamic -+ * FIFO sizing is enabled. -+ * 16 to 32768 (default 1064) -+ */ -+ int32_t dev_rx_fifo_size; -+//#define dwc_param_dev_rx_fifo_size_default 1064 -+#define dwc_param_dev_rx_fifo_size_default 0x100 -+ -+ /** -+ * Specifies whether dedicated transmit FIFOs are -+ * enabled for non periodic IN endpoints in device mode -+ * 0 - No -+ * 1 - Yes -+ */ -+ int32_t en_multiple_tx_fifo; -+#define dwc_param_en_multiple_tx_fifo_default 1 -+ -+ /** Number of 4-byte words in each of the Tx FIFOs in device -+ * mode when dynamic FIFO sizing is enabled. -+ * 4 to 768 (default 256) -+ */ -+ uint32_t dev_tx_fifo_size[MAX_TX_FIFOS]; -+//#define dwc_param_dev_tx_fifo_size_default 256 -+#define dwc_param_dev_tx_fifo_size_default 0x80 -+ -+ /** Number of 4-byte words in the non-periodic Tx FIFO in device mode -+ * when dynamic FIFO sizing is enabled. -+ * 16 to 32768 (default 1024) -+ */ -+ int32_t dev_nperio_tx_fifo_size; -+//#define dwc_param_dev_nperio_tx_fifo_size_default 1024 -+#define dwc_param_dev_nperio_tx_fifo_size_default 0x80 -+ -+ /** Number of 4-byte words in each of the periodic Tx FIFOs in device -+ * mode when dynamic FIFO sizing is enabled. -+ * 4 to 768 (default 256) -+ */ -+ uint32_t dev_perio_tx_fifo_size[MAX_PERIO_FIFOS]; -+//#define dwc_param_dev_perio_tx_fifo_size_default 256 -+#define dwc_param_dev_perio_tx_fifo_size_default 0x80 -+ -+ /** Number of 4-byte words in the Rx FIFO in host mode when dynamic -+ * FIFO sizing is enabled. -+ * 16 to 32768 (default 1024) -+ */ -+ int32_t host_rx_fifo_size; -+//#define dwc_param_host_rx_fifo_size_default 1024 -+#define dwc_param_host_rx_fifo_size_default 0x292 -+ -+ /** Number of 4-byte words in the non-periodic Tx FIFO in host mode -+ * when Dynamic FIFO sizing is enabled in the core. -+ * 16 to 32768 (default 1024) -+ */ -+ int32_t host_nperio_tx_fifo_size; -+//#define dwc_param_host_nperio_tx_fifo_size_default 1024 -+//#define dwc_param_host_nperio_tx_fifo_size_default 0x292 -+#define dwc_param_host_nperio_tx_fifo_size_default 0x80 -+ -+ /** Number of 4-byte words in the host periodic Tx FIFO when dynamic -+ * FIFO sizing is enabled. -+ * 16 to 32768 (default 1024) -+ */ -+ int32_t host_perio_tx_fifo_size; -+//#define dwc_param_host_perio_tx_fifo_size_default 1024 -+#define dwc_param_host_perio_tx_fifo_size_default 0x292 -+ -+ /** The maximum transfer size supported in bytes. -+ * 2047 to 65,535 (default 65,535) -+ */ -+ int32_t max_transfer_size; -+#define dwc_param_max_transfer_size_default 65535 -+ -+ /** The maximum number of packets in a transfer. -+ * 15 to 511 (default 511) -+ */ -+ int32_t max_packet_count; -+#define dwc_param_max_packet_count_default 511 -+ -+ /** The number of host channel registers to use. -+ * 1 to 16 (default 12) -+ * Note: The FPGA configuration supports a maximum of 12 host channels. -+ */ -+ int32_t host_channels; -+//#define dwc_param_host_channels_default 12 -+#define dwc_param_host_channels_default 16 -+ -+ /** The number of endpoints in addition to EP0 available for device -+ * mode operations. -+ * 1 to 15 (default 6 IN and OUT) -+ * Note: The FPGA configuration supports a maximum of 6 IN and OUT -+ * endpoints in addition to EP0. -+ */ -+ int32_t dev_endpoints; -+//#define dwc_param_dev_endpoints_default 6 -+#define dwc_param_dev_endpoints_default 8 -+ -+ /** -+ * Specifies the type of PHY interface to use. By default, the driver -+ * will automatically detect the phy_type. -+ * -+ * 0 - Full Speed PHY -+ * 1 - UTMI+ (default) -+ * 2 - ULPI -+ */ -+ int32_t phy_type; -+#define DWC_PHY_TYPE_PARAM_FS 0 -+#define DWC_PHY_TYPE_PARAM_UTMI 1 -+#define DWC_PHY_TYPE_PARAM_ULPI 2 -+#define dwc_param_phy_type_default DWC_PHY_TYPE_PARAM_UTMI -+ -+ /** -+ * Specifies the UTMI+ Data Width. This parameter is -+ * applicable for a PHY_TYPE of UTMI+ or ULPI. (For a ULPI -+ * PHY_TYPE, this parameter indicates the data width between -+ * the MAC and the ULPI Wrapper.) Also, this parameter is -+ * applicable only if the OTG_HSPHY_WIDTH cC parameter was set -+ * to "8 and 16 bits", meaning that the core has been -+ * configured to work at either data path width. -+ * -+ * 8 or 16 bits (default 16) -+ */ -+ int32_t phy_utmi_width; -+#define dwc_param_phy_utmi_width_default 16 -+ -+ /** -+ * Specifies whether the ULPI operates at double or single -+ * data rate. This parameter is only applicable if PHY_TYPE is -+ * ULPI. -+ * -+ * 0 - single data rate ULPI interface with 8 bit wide data -+ * bus (default) -+ * 1 - double data rate ULPI interface with 4 bit wide data -+ * bus -+ */ -+ int32_t phy_ulpi_ddr; -+#define dwc_param_phy_ulpi_ddr_default 0 -+ -+ /** -+ * Specifies whether to use the internal or external supply to -+ * drive the vbus with a ULPI phy. -+ */ -+ int32_t phy_ulpi_ext_vbus; -+#define DWC_PHY_ULPI_INTERNAL_VBUS 0 -+#define DWC_PHY_ULPI_EXTERNAL_VBUS 1 -+#define dwc_param_phy_ulpi_ext_vbus_default DWC_PHY_ULPI_INTERNAL_VBUS -+ -+ /** -+ * Specifies whether to use the I2Cinterface for full speed PHY. This -+ * parameter is only applicable if PHY_TYPE is FS. -+ * 0 - No (default) -+ * 1 - Yes -+ */ -+ int32_t i2c_enable; -+#define dwc_param_i2c_enable_default 0 -+ -+ int32_t ulpi_fs_ls; -+#define dwc_param_ulpi_fs_ls_default 0 -+ -+ int32_t ts_dline; -+#define dwc_param_ts_dline_default 0 -+ -+ /** Thresholding enable flag- -+ * bit 0 - enable non-ISO Tx thresholding -+ * bit 1 - enable ISO Tx thresholding -+ * bit 2 - enable Rx thresholding -+ */ -+ uint32_t thr_ctl; -+#define dwc_param_thr_ctl_default 0 -+ -+ /** Thresholding length for Tx -+ * FIFOs in 32 bit DWORDs -+ */ -+ uint32_t tx_thr_length; -+#define dwc_param_tx_thr_length_default 64 -+ -+ /** Thresholding length for Rx -+ * FIFOs in 32 bit DWORDs -+ */ -+ uint32_t rx_thr_length; -+#define dwc_param_rx_thr_length_default 64 -+ -+ /** Per Transfer Interrupt -+ * mode enable flag -+ * 1 - Enabled -+ * 0 - Disabled -+ */ -+ uint32_t pti_enable; -+#define dwc_param_pti_enable_default 0 -+ -+ /** Molti Processor Interrupt -+ * mode enable flag -+ * 1 - Enabled -+ * 0 - Disabled -+ */ -+ uint32_t mpi_enable; -+#define dwc_param_mpi_enable_default 0 -+ -+} dwc_otg_core_params_t; -+ -+#ifdef DEBUG -+struct dwc_otg_core_if; -+typedef struct hc_xfer_info -+{ -+ struct dwc_otg_core_if *core_if; -+ dwc_hc_t *hc; -+} hc_xfer_info_t; -+#endif -+ -+/** -+ * The <code>dwc_otg_core_if</code> structure contains information needed to manage -+ * the DWC_otg controller acting in either host or device mode. It -+ * represents the programming view of the controller as a whole. -+ */ -+typedef struct dwc_otg_core_if -+{ -+ /** Parameters that define how the core should be configured.*/ -+ dwc_otg_core_params_t *core_params; -+ -+ /** Core Global registers starting at offset 000h. */ -+ dwc_otg_core_global_regs_t *core_global_regs; -+ -+ /** Device-specific information */ -+ dwc_otg_dev_if_t *dev_if; -+ /** Host-specific information */ -+ dwc_otg_host_if_t *host_if; -+ -+ /** Value from SNPSID register */ -+ uint32_t snpsid; -+ -+ /* -+ * Set to 1 if the core PHY interface bits in USBCFG have been -+ * initialized. -+ */ -+ uint8_t phy_init_done; -+ -+ /* -+ * SRP Success flag, set by srp success interrupt in FS I2C mode -+ */ -+ uint8_t srp_success; -+ uint8_t srp_timer_started; -+ -+ /* Common configuration information */ -+ /** Power and Clock Gating Control Register */ -+ volatile uint32_t *pcgcctl; -+#define DWC_OTG_PCGCCTL_OFFSET 0xE00 -+ -+ /** Push/pop addresses for endpoints or host channels.*/ -+ uint32_t *data_fifo[MAX_EPS_CHANNELS]; -+#define DWC_OTG_DATA_FIFO_OFFSET 0x1000 -+#define DWC_OTG_DATA_FIFO_SIZE 0x1000 -+ -+ /** Total RAM for FIFOs (Bytes) */ -+ uint16_t total_fifo_size; -+ /** Size of Rx FIFO (Bytes) */ -+ uint16_t rx_fifo_size; -+ /** Size of Non-periodic Tx FIFO (Bytes) */ -+ uint16_t nperio_tx_fifo_size; -+ -+ -+ /** 1 if DMA is enabled, 0 otherwise. */ -+ uint8_t dma_enable; -+ -+ /** 1 if Descriptor DMA mode is enabled, 0 otherwise. */ -+ uint8_t dma_desc_enable; -+ -+ /** 1 if PTI Enhancement mode is enabled, 0 otherwise. */ -+ uint8_t pti_enh_enable; -+ -+ /** 1 if MPI Enhancement mode is enabled, 0 otherwise. */ -+ uint8_t multiproc_int_enable; -+ -+ /** 1 if dedicated Tx FIFOs are enabled, 0 otherwise. */ -+ uint8_t en_multiple_tx_fifo; -+ -+ /** Set to 1 if multiple packets of a high-bandwidth transfer is in -+ * process of being queued */ -+ uint8_t queuing_high_bandwidth; -+ -+ /** Hardware Configuration -- stored here for convenience.*/ -+ hwcfg1_data_t hwcfg1; -+ hwcfg2_data_t hwcfg2; -+ hwcfg3_data_t hwcfg3; -+ hwcfg4_data_t hwcfg4; -+ -+ /** Host and Device Configuration -- stored here for convenience.*/ -+ hcfg_data_t hcfg; -+ dcfg_data_t dcfg; -+ -+ /** The operational State, during transations -+ * (a_host>>a_peripherial and b_device=>b_host) this may not -+ * match the core but allows the software to determine -+ * transitions. -+ */ -+ uint8_t op_state; -+ -+ /** -+ * Set to 1 if the HCD needs to be restarted on a session request -+ * interrupt. This is required if no connector ID status change has -+ * occurred since the HCD was last disconnected. -+ */ -+ uint8_t restart_hcd_on_session_req; -+ -+ /** HCD callbacks */ -+ /** A-Device is a_host */ -+#define A_HOST (1) -+ /** A-Device is a_suspend */ -+#define A_SUSPEND (2) -+ /** A-Device is a_peripherial */ -+#define A_PERIPHERAL (3) -+ /** B-Device is operating as a Peripheral. */ -+#define B_PERIPHERAL (4) -+ /** B-Device is operating as a Host. */ -+#define B_HOST (5) -+ -+ /** HCD callbacks */ -+ struct dwc_otg_cil_callbacks *hcd_cb; -+ /** PCD callbacks */ -+ struct dwc_otg_cil_callbacks *pcd_cb; -+ -+ /** Device mode Periodic Tx FIFO Mask */ -+ uint32_t p_tx_msk; -+ /** Device mode Periodic Tx FIFO Mask */ -+ uint32_t tx_msk; -+ -+ /** Workqueue object used for handling several interrupts */ -+ struct workqueue_struct *wq_otg; -+ -+ /** Work object used for handling "Connector ID Status Change" Interrupt */ -+ struct work_struct w_conn_id; -+ -+ /** Work object used for handling "Wakeup Detected" Interrupt */ -+ struct delayed_work w_wkp; -+ -+#ifdef DEBUG -+ uint32_t start_hcchar_val[MAX_EPS_CHANNELS]; -+ -+ hc_xfer_info_t hc_xfer_info[MAX_EPS_CHANNELS]; -+ struct timer_list hc_xfer_timer[MAX_EPS_CHANNELS]; -+ -+ uint32_t hfnum_7_samples; -+ uint64_t hfnum_7_frrem_accum; -+ uint32_t hfnum_0_samples; -+ uint64_t hfnum_0_frrem_accum; -+ uint32_t hfnum_other_samples; -+ uint64_t hfnum_other_frrem_accum; -+#endif -+ -+ -+} dwc_otg_core_if_t; -+ -+/*We must clear S3C24XX_EINTPEND external interrupt register -+ * because after clearing in this register trigerred IRQ from -+ * H/W core in kernel interrupt can be occured again before OTG -+ * handlers clear all IRQ sources of Core registers because of -+ * timing latencies and Low Level IRQ Type. -+ */ -+ -+#ifdef CONFIG_MACH_IPMATE -+#define S3C2410X_CLEAR_EINTPEND() \ -+do { \ -+ if (!dwc_otg_read_core_intr(core_if)) { \ -+ __raw_writel(1UL << 11,S3C24XX_EINTPEND); \ -+ } \ -+} while (0) -+#else -+#define S3C2410X_CLEAR_EINTPEND() do { } while (0) -+#endif -+ -+/* -+ * The following functions are functions for works -+ * using during handling some interrupts -+ */ -+extern void w_conn_id_status_change(struct work_struct *p); -+extern void w_wakeup_detected(struct work_struct *p); -+ -+ -+/* -+ * The following functions support initialization of the CIL driver component -+ * and the DWC_otg controller. -+ */ -+extern dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t *_reg_base_addr, -+ dwc_otg_core_params_t *_core_params); -+extern void dwc_otg_cil_remove(dwc_otg_core_if_t *_core_if); -+extern void dwc_otg_core_init(dwc_otg_core_if_t *_core_if); -+extern void dwc_otg_core_host_init(dwc_otg_core_if_t *_core_if); -+extern void dwc_otg_core_dev_init(dwc_otg_core_if_t *_core_if); -+extern void dwc_otg_enable_global_interrupts( dwc_otg_core_if_t *_core_if ); -+extern void dwc_otg_disable_global_interrupts( dwc_otg_core_if_t *_core_if ); -+ -+/** @name Device CIL Functions -+ * The following functions support managing the DWC_otg controller in device -+ * mode. -+ */ -+/**@{*/ -+extern void dwc_otg_wakeup(dwc_otg_core_if_t *_core_if); -+extern void dwc_otg_read_setup_packet (dwc_otg_core_if_t *_core_if, uint32_t *_dest); -+extern uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t *_core_if); -+extern void dwc_otg_ep0_activate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); -+extern void dwc_otg_ep_activate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); -+extern void dwc_otg_ep_deactivate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); -+extern void dwc_otg_ep_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); -+extern void dwc_otg_ep_start_zl_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); -+extern void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); -+extern void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); -+extern void dwc_otg_ep_write_packet(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep, int _dma); -+extern void dwc_otg_ep_set_stall(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); -+extern void dwc_otg_ep_clear_stall(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep); -+extern void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t *_core_if); -+extern void dwc_otg_dump_dev_registers(dwc_otg_core_if_t *_core_if); -+extern void dwc_otg_dump_spram(dwc_otg_core_if_t *_core_if); -+#ifdef DWC_EN_ISOC -+extern void dwc_otg_iso_ep_start_frm_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep); -+extern void dwc_otg_iso_ep_start_buf_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep); -+#endif //DWC_EN_ISOC -+/**@}*/ -+ -+/** @name Host CIL Functions -+ * The following functions support managing the DWC_otg controller in host -+ * mode. -+ */ -+/**@{*/ -+extern void dwc_otg_hc_init(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); -+extern void dwc_otg_hc_halt(dwc_otg_core_if_t *_core_if, -+ dwc_hc_t *_hc, -+ dwc_otg_halt_status_e _halt_status); -+extern void dwc_otg_hc_cleanup(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); -+extern void dwc_otg_hc_start_transfer(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); -+extern int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); -+extern void dwc_otg_hc_do_ping(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); -+extern void dwc_otg_hc_write_packet(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc); -+extern void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t *_core_if); -+extern void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t *_core_if); -+ -+/** -+ * This function Reads HPRT0 in preparation to modify. It keeps the -+ * WC bits 0 so that if they are read as 1, they won't clear when you -+ * write it back -+ */ -+static inline uint32_t dwc_otg_read_hprt0(dwc_otg_core_if_t *_core_if) -+{ -+ hprt0_data_t hprt0; -+ hprt0.d32 = dwc_read_reg32(_core_if->host_if->hprt0); -+ hprt0.b.prtena = 0; -+ hprt0.b.prtconndet = 0; -+ hprt0.b.prtenchng = 0; -+ hprt0.b.prtovrcurrchng = 0; -+ return hprt0.d32; -+} -+ -+extern void dwc_otg_dump_host_registers(dwc_otg_core_if_t *_core_if); -+/**@}*/ -+ -+/** @name Common CIL Functions -+ * The following functions support managing the DWC_otg controller in either -+ * device or host mode. -+ */ -+/**@{*/ -+ -+extern void dwc_otg_read_packet(dwc_otg_core_if_t *core_if, -+ uint8_t *dest, -+ uint16_t bytes); -+ -+extern void dwc_otg_dump_global_registers(dwc_otg_core_if_t *_core_if); -+ -+extern void dwc_otg_flush_tx_fifo( dwc_otg_core_if_t *_core_if, -+ const int _num ); -+extern void dwc_otg_flush_rx_fifo( dwc_otg_core_if_t *_core_if ); -+extern void dwc_otg_core_reset( dwc_otg_core_if_t *_core_if ); -+ -+extern dwc_otg_dma_desc_t* dwc_otg_ep_alloc_desc_chain(uint32_t * dma_desc_addr, uint32_t count); -+extern void dwc_otg_ep_free_desc_chain(dwc_otg_dma_desc_t* desc_addr, uint32_t dma_desc_addr, uint32_t count); -+ -+/** -+ * This function returns the Core Interrupt register. -+ */ -+static inline uint32_t dwc_otg_read_core_intr(dwc_otg_core_if_t *_core_if) -+{ -+ return (dwc_read_reg32(&_core_if->core_global_regs->gintsts) & -+ dwc_read_reg32(&_core_if->core_global_regs->gintmsk)); -+} -+ -+/** -+ * This function returns the OTG Interrupt register. -+ */ -+static inline uint32_t dwc_otg_read_otg_intr (dwc_otg_core_if_t *_core_if) -+{ -+ return (dwc_read_reg32 (&_core_if->core_global_regs->gotgint)); -+} -+ -+/** -+ * This function reads the Device All Endpoints Interrupt register and -+ * returns the IN endpoint interrupt bits. -+ */ -+static inline uint32_t dwc_otg_read_dev_all_in_ep_intr(dwc_otg_core_if_t *core_if) -+{ -+ uint32_t v; -+ -+ if(core_if->multiproc_int_enable) { -+ v = dwc_read_reg32(&core_if->dev_if->dev_global_regs->deachint) & -+ dwc_read_reg32(&core_if->dev_if->dev_global_regs->deachintmsk); -+ } else { -+ v = dwc_read_reg32(&core_if->dev_if->dev_global_regs->daint) & -+ dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk); -+ } -+ return (v & 0xffff); -+ -+} -+ -+/** -+ * This function reads the Device All Endpoints Interrupt register and -+ * returns the OUT endpoint interrupt bits. -+ */ -+static inline uint32_t dwc_otg_read_dev_all_out_ep_intr(dwc_otg_core_if_t *core_if) -+{ -+ uint32_t v; -+ -+ if(core_if->multiproc_int_enable) { -+ v = dwc_read_reg32(&core_if->dev_if->dev_global_regs->deachint) & -+ dwc_read_reg32(&core_if->dev_if->dev_global_regs->deachintmsk); -+ } else { -+ v = dwc_read_reg32(&core_if->dev_if->dev_global_regs->daint) & -+ dwc_read_reg32(&core_if->dev_if->dev_global_regs->daintmsk); -+ } -+ -+ return ((v & 0xffff0000) >> 16); -+} -+ -+/** -+ * This function returns the Device IN EP Interrupt register -+ */ -+static inline uint32_t dwc_otg_read_dev_in_ep_intr(dwc_otg_core_if_t *core_if, -+ dwc_ep_t *ep) -+{ -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ uint32_t v, msk, emp; -+ -+ if(core_if->multiproc_int_enable) { -+ msk = dwc_read_reg32(&dev_if->dev_global_regs->diepeachintmsk[ep->num]); -+ emp = dwc_read_reg32(&dev_if->dev_global_regs->dtknqr4_fifoemptymsk); -+ msk |= ((emp >> ep->num) & 0x1) << 7; -+ v = dwc_read_reg32(&dev_if->in_ep_regs[ep->num]->diepint) & msk; -+ } else { -+ msk = dwc_read_reg32(&dev_if->dev_global_regs->diepmsk); -+ emp = dwc_read_reg32(&dev_if->dev_global_regs->dtknqr4_fifoemptymsk); -+ msk |= ((emp >> ep->num) & 0x1) << 7; -+ v = dwc_read_reg32(&dev_if->in_ep_regs[ep->num]->diepint) & msk; -+ } -+ -+ -+ return v; -+} -+/** -+ * This function returns the Device OUT EP Interrupt register -+ */ -+static inline uint32_t dwc_otg_read_dev_out_ep_intr(dwc_otg_core_if_t *_core_if, -+ dwc_ep_t *_ep) -+{ -+ dwc_otg_dev_if_t *dev_if = _core_if->dev_if; -+ uint32_t v; -+ doepmsk_data_t msk = { .d32 = 0 }; -+ -+ if(_core_if->multiproc_int_enable) { -+ msk.d32 = dwc_read_reg32(&dev_if->dev_global_regs->doepeachintmsk[_ep->num]); -+ if(_core_if->pti_enh_enable) { -+ msk.b.pktdrpsts = 1; -+ } -+ v = dwc_read_reg32( &dev_if->out_ep_regs[_ep->num]->doepint) & msk.d32; -+ } else { -+ msk.d32 = dwc_read_reg32(&dev_if->dev_global_regs->doepmsk); -+ if(_core_if->pti_enh_enable) { -+ msk.b.pktdrpsts = 1; -+ } -+ v = dwc_read_reg32( &dev_if->out_ep_regs[_ep->num]->doepint) & msk.d32; -+ } -+ return v; -+} -+ -+/** -+ * This function returns the Host All Channel Interrupt register -+ */ -+static inline uint32_t dwc_otg_read_host_all_channels_intr (dwc_otg_core_if_t *_core_if) -+{ -+ return (dwc_read_reg32 (&_core_if->host_if->host_global_regs->haint)); -+} -+ -+static inline uint32_t dwc_otg_read_host_channel_intr (dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc) -+{ -+ return (dwc_read_reg32 (&_core_if->host_if->hc_regs[_hc->hc_num]->hcint)); -+} -+ -+ -+/** -+ * This function returns the mode of the operation, host or device. -+ * -+ * @return 0 - Device Mode, 1 - Host Mode -+ */ -+static inline uint32_t dwc_otg_mode(dwc_otg_core_if_t *_core_if) -+{ -+ return (dwc_read_reg32( &_core_if->core_global_regs->gintsts ) & 0x1); -+} -+ -+static inline uint8_t dwc_otg_is_device_mode(dwc_otg_core_if_t *_core_if) -+{ -+ return (dwc_otg_mode(_core_if) != DWC_HOST_MODE); -+} -+static inline uint8_t dwc_otg_is_host_mode(dwc_otg_core_if_t *_core_if) -+{ -+ return (dwc_otg_mode(_core_if) == DWC_HOST_MODE); -+} -+ -+extern int32_t dwc_otg_handle_common_intr( dwc_otg_core_if_t *_core_if ); -+ -+ -+/**@}*/ -+ -+/** -+ * DWC_otg CIL callback structure. This structure allows the HCD and -+ * PCD to register functions used for starting and stopping the PCD -+ * and HCD for role change on for a DRD. -+ */ -+typedef struct dwc_otg_cil_callbacks -+{ -+ /** Start function for role change */ -+ int (*start) (void *_p); -+ /** Stop Function for role change */ -+ int (*stop) (void *_p); -+ /** Disconnect Function for role change */ -+ int (*disconnect) (void *_p); -+ /** Resume/Remote wakeup Function */ -+ int (*resume_wakeup) (void *_p); -+ /** Suspend function */ -+ int (*suspend) (void *_p); -+ /** Session Start (SRP) */ -+ int (*session_start) (void *_p); -+ /** Pointer passed to start() and stop() */ -+ void *p; -+} dwc_otg_cil_callbacks_t; -+ -+extern void dwc_otg_cil_register_pcd_callbacks( dwc_otg_core_if_t *_core_if, -+ dwc_otg_cil_callbacks_t *_cb, -+ void *_p); -+extern void dwc_otg_cil_register_hcd_callbacks( dwc_otg_core_if_t *_core_if, -+ dwc_otg_cil_callbacks_t *_cb, -+ void *_p); -+#ifndef warn -+#define warn printk -+#endif -+ -+#endif -+ ---- /dev/null -+++ b/drivers/usb/dwc/otg_cil_intr.c -@@ -0,0 +1,852 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil_intr.c $ -+ * $Revision: #10 $ -+ * $Date: 2008/07/16 $ -+ * $Change: 1065567 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+ -+/** @file -+ * -+ * The Core Interface Layer provides basic services for accessing and -+ * managing the DWC_otg hardware. These services are used by both the -+ * Host Controller Driver and the Peripheral Controller Driver. -+ * -+ * This file contains the Common Interrupt handlers. -+ */ -+#include "otg_plat.h" -+#include "otg_regs.h" -+#include "otg_cil.h" -+#include "otg_pcd.h" -+ -+#ifdef DEBUG -+inline const char *op_state_str(dwc_otg_core_if_t *core_if) -+{ -+ return (core_if->op_state==A_HOST?"a_host": -+ (core_if->op_state==A_SUSPEND?"a_suspend": -+ (core_if->op_state==A_PERIPHERAL?"a_peripheral": -+ (core_if->op_state==B_PERIPHERAL?"b_peripheral": -+ (core_if->op_state==B_HOST?"b_host": -+ "unknown"))))); -+} -+#endif -+ -+/** This function will log a debug message -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+int32_t dwc_otg_handle_mode_mismatch_intr (dwc_otg_core_if_t *core_if) -+{ -+ gintsts_data_t gintsts; -+ DWC_WARN("Mode Mismatch Interrupt: currently in %s mode\n", -+ dwc_otg_mode(core_if) ? "Host" : "Device"); -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.modemismatch = 1; -+ dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); -+ return 1; -+} -+ -+/** Start the HCD. Helper function for using the HCD callbacks. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+static inline void hcd_start(dwc_otg_core_if_t *core_if) -+{ -+ if (core_if->hcd_cb && core_if->hcd_cb->start) { -+ core_if->hcd_cb->start(core_if->hcd_cb->p); -+ } -+} -+/** Stop the HCD. Helper function for using the HCD callbacks. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+static inline void hcd_stop(dwc_otg_core_if_t *core_if) -+{ -+ if (core_if->hcd_cb && core_if->hcd_cb->stop) { -+ core_if->hcd_cb->stop(core_if->hcd_cb->p); -+ } -+} -+/** Disconnect the HCD. Helper function for using the HCD callbacks. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+static inline void hcd_disconnect(dwc_otg_core_if_t *core_if) -+{ -+ if (core_if->hcd_cb && core_if->hcd_cb->disconnect) { -+ core_if->hcd_cb->disconnect(core_if->hcd_cb->p); -+ } -+} -+/** Inform the HCD the a New Session has begun. Helper function for -+ * using the HCD callbacks. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+static inline void hcd_session_start(dwc_otg_core_if_t *core_if) -+{ -+ if (core_if->hcd_cb && core_if->hcd_cb->session_start) { -+ core_if->hcd_cb->session_start(core_if->hcd_cb->p); -+ } -+} -+ -+/** Start the PCD. Helper function for using the PCD callbacks. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+static inline void pcd_start(dwc_otg_core_if_t *core_if) -+{ -+ if (core_if->pcd_cb && core_if->pcd_cb->start) { -+ core_if->pcd_cb->start(core_if->pcd_cb->p); -+ } -+} -+/** Stop the PCD. Helper function for using the PCD callbacks. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+static inline void pcd_stop(dwc_otg_core_if_t *core_if) -+{ -+ if (core_if->pcd_cb && core_if->pcd_cb->stop) { -+ core_if->pcd_cb->stop(core_if->pcd_cb->p); -+ } -+} -+/** Suspend the PCD. Helper function for using the PCD callbacks. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+static inline void pcd_suspend(dwc_otg_core_if_t *core_if) -+{ -+ if (core_if->pcd_cb && core_if->pcd_cb->suspend) { -+ core_if->pcd_cb->suspend(core_if->pcd_cb->p); -+ } -+} -+/** Resume the PCD. Helper function for using the PCD callbacks. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+static inline void pcd_resume(dwc_otg_core_if_t *core_if) -+{ -+ if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) { -+ core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p); -+ } -+} -+ -+/** -+ * This function handles the OTG Interrupts. It reads the OTG -+ * Interrupt Register (GOTGINT) to determine what interrupt has -+ * occurred. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+int32_t dwc_otg_handle_otg_intr(dwc_otg_core_if_t *core_if) -+{ -+ dwc_otg_core_global_regs_t *global_regs = -+ core_if->core_global_regs; -+ gotgint_data_t gotgint; -+ gotgctl_data_t gotgctl; -+ gintmsk_data_t gintmsk; -+ gotgint.d32 = dwc_read_reg32(&global_regs->gotgint); -+ gotgctl.d32 = dwc_read_reg32(&global_regs->gotgctl); -+ DWC_DEBUGPL(DBG_CIL, "++OTG Interrupt gotgint=%0x [%s]\n", gotgint.d32, -+ op_state_str(core_if)); -+ //DWC_DEBUGPL(DBG_CIL, "gotgctl=%08x\n", gotgctl.d32); -+ -+ if (gotgint.b.sesenddet) { -+ DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " -+ "Session End Detected++ (%s)\n", -+ op_state_str(core_if)); -+ gotgctl.d32 = dwc_read_reg32(&global_regs->gotgctl); -+ -+ if (core_if->op_state == B_HOST) { -+ -+ dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_start(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ core_if->op_state = B_PERIPHERAL; -+ } else { -+ dwc_otg_pcd_t *pcd; -+ -+ /* If not B_HOST and Device HNP still set. HNP -+ * Did not succeed!*/ -+ if (gotgctl.b.devhnpen) { -+ DWC_DEBUGPL(DBG_ANY, "Session End Detected\n"); -+ DWC_ERROR("Device Not Connected/Responding!\n"); -+ } -+ -+ /* If Session End Detected the B-Cable has -+ * been disconnected. */ -+ /* Reset PCD and Gadget driver to a -+ * clean state. */ -+ -+ pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_stop(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ } -+ gotgctl.d32 = 0; -+ gotgctl.b.devhnpen = 1; -+ dwc_modify_reg32(&global_regs->gotgctl, -+ gotgctl.d32, 0); -+ } -+ if (gotgint.b.sesreqsucstschng) { -+ DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " -+ "Session Reqeust Success Status Change++\n"); -+ gotgctl.d32 = dwc_read_reg32(&global_regs->gotgctl); -+ if (gotgctl.b.sesreqscs) { -+ if ((core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS) && -+ (core_if->core_params->i2c_enable)) { -+ core_if->srp_success = 1; -+ } -+ else { -+ dwc_otg_pcd_t *pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_resume(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ /* Clear Session Request */ -+ gotgctl.d32 = 0; -+ gotgctl.b.sesreq = 1; -+ dwc_modify_reg32(&global_regs->gotgctl, -+ gotgctl.d32, 0); -+ } -+ } -+ } -+ if (gotgint.b.hstnegsucstschng) { -+ /* Print statements during the HNP interrupt handling -+ * can cause it to fail.*/ -+ gotgctl.d32 = dwc_read_reg32(&global_regs->gotgctl); -+ if (gotgctl.b.hstnegscs) { -+ if (dwc_otg_is_host_mode(core_if)) { -+ dwc_otg_pcd_t *pcd; -+ -+ core_if->op_state = B_HOST; -+ /* -+ * Need to disable SOF interrupt immediately. -+ * When switching from device to host, the PCD -+ * interrupt handler won't handle the -+ * interrupt if host mode is already set. The -+ * HCD interrupt handler won't get called if -+ * the HCD state is HALT. This means that the -+ * interrupt does not get handled and Linux -+ * complains loudly. -+ */ -+ gintmsk.d32 = 0; -+ gintmsk.b.sofintr = 1; -+ dwc_modify_reg32(&global_regs->gintmsk, -+ gintmsk.d32, 0); -+ -+ pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_stop(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ /* -+ * Initialize the Core for Host mode. -+ */ -+ hcd_start(core_if); -+ core_if->op_state = B_HOST; -+ } -+ } else { -+ gotgctl.d32 = 0; -+ gotgctl.b.hnpreq = 1; -+ gotgctl.b.devhnpen = 1; -+ dwc_modify_reg32(&global_regs->gotgctl, -+ gotgctl.d32, 0); -+ DWC_DEBUGPL(DBG_ANY, "HNP Failed\n"); -+ DWC_ERROR("Device Not Connected/Responding\n"); -+ } -+ } -+ if (gotgint.b.hstnegdet) { -+ /* The disconnect interrupt is set at the same time as -+ * Host Negotiation Detected. During the mode -+ * switch all interrupts are cleared so the disconnect -+ * interrupt handler will not get executed. -+ */ -+ DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " -+ "Host Negotiation Detected++ (%s)\n", -+ (dwc_otg_is_host_mode(core_if)?"Host":"Device")); -+ if (dwc_otg_is_device_mode(core_if)){ -+ dwc_otg_pcd_t *pcd; -+ -+ DWC_DEBUGPL(DBG_ANY, "a_suspend->a_peripheral (%d)\n", core_if->op_state); -+ hcd_disconnect(core_if); -+ -+ pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_start(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ core_if->op_state = A_PERIPHERAL; -+ } else { -+ dwc_otg_pcd_t *pcd; -+ -+ /* -+ * Need to disable SOF interrupt immediately. When -+ * switching from device to host, the PCD interrupt -+ * handler won't handle the interrupt if host mode is -+ * already set. The HCD interrupt handler won't get -+ * called if the HCD state is HALT. This means that -+ * the interrupt does not get handled and Linux -+ * complains loudly. -+ */ -+ gintmsk.d32 = 0; -+ gintmsk.b.sofintr = 1; -+ dwc_modify_reg32(&global_regs->gintmsk, -+ gintmsk.d32, 0); -+ -+ pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_stop(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ hcd_start(core_if); -+ core_if->op_state = A_HOST; -+ } -+ } -+ if (gotgint.b.adevtoutchng) { -+ DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " -+ "A-Device Timeout Change++\n"); -+ } -+ if (gotgint.b.debdone) { -+ DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " -+ "Debounce Done++\n"); -+ } -+ -+ /* Clear GOTGINT */ -+ dwc_write_reg32 (&core_if->core_global_regs->gotgint, gotgint.d32); -+ -+ return 1; -+} -+ -+ -+void w_conn_id_status_change(struct work_struct *p) -+{ -+ dwc_otg_core_if_t *core_if = container_of(p, dwc_otg_core_if_t, w_conn_id); -+ -+ uint32_t count = 0; -+ gotgctl_data_t gotgctl = { .d32 = 0 }; -+ -+ gotgctl.d32 = dwc_read_reg32(&core_if->core_global_regs->gotgctl); -+ DWC_DEBUGPL(DBG_CIL, "gotgctl=%0x\n", gotgctl.d32); -+ DWC_DEBUGPL(DBG_CIL, "gotgctl.b.conidsts=%d\n", gotgctl.b.conidsts); -+ -+ /* B-Device connector (Device Mode) */ -+ if (gotgctl.b.conidsts) { -+ dwc_otg_pcd_t *pcd; -+ -+ /* Wait for switch to device mode. */ -+ while (!dwc_otg_is_device_mode(core_if)){ -+ DWC_PRINT("Waiting for Peripheral Mode, Mode=%s\n", -+ (dwc_otg_is_host_mode(core_if)?"Host":"Peripheral")); -+ MDELAY(100); -+ if (++count > 10000) *(uint32_t*)NULL=0; -+ } -+ core_if->op_state = B_PERIPHERAL; -+ dwc_otg_core_init(core_if); -+ dwc_otg_enable_global_interrupts(core_if); -+ -+ pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_start(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ } else { -+ /* A-Device connector (Host Mode) */ -+ while (!dwc_otg_is_host_mode(core_if)) { -+ DWC_PRINT("Waiting for Host Mode, Mode=%s\n", -+ (dwc_otg_is_host_mode(core_if)?"Host":"Peripheral")); -+ MDELAY(100); -+ if (++count > 10000) *(uint32_t*)NULL=0; -+ } -+ core_if->op_state = A_HOST; -+ /* -+ * Initialize the Core for Host mode. -+ */ -+ dwc_otg_core_init(core_if); -+ dwc_otg_enable_global_interrupts(core_if); -+ hcd_start(core_if); -+ } -+} -+ -+ -+/** -+ * This function handles the Connector ID Status Change Interrupt. It -+ * reads the OTG Interrupt Register (GOTCTL) to determine whether this -+ * is a Device to Host Mode transition or a Host Mode to Device -+ * Transition. -+ * -+ * This only occurs when the cable is connected/removed from the PHY -+ * connector. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+int32_t dwc_otg_handle_conn_id_status_change_intr(dwc_otg_core_if_t *core_if) -+{ -+ -+ /* -+ * Need to disable SOF interrupt immediately. If switching from device -+ * to host, the PCD interrupt handler won't handle the interrupt if -+ * host mode is already set. The HCD interrupt handler won't get -+ * called if the HCD state is HALT. This means that the interrupt does -+ * not get handled and Linux complains loudly. -+ */ -+ gintmsk_data_t gintmsk = { .d32 = 0 }; -+ gintsts_data_t gintsts = { .d32 = 0 }; -+ -+ gintmsk.b.sofintr = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gintmsk, gintmsk.d32, 0); -+ -+ DWC_DEBUGPL(DBG_CIL, " ++Connector ID Status Change Interrupt++ (%s)\n", -+ (dwc_otg_is_host_mode(core_if)?"Host":"Device")); -+ -+ /* -+ * Need to schedule a work, as there are possible DELAY function calls -+ */ -+ queue_work(core_if->wq_otg, &core_if->w_conn_id); -+ -+ /* Set flag and clear interrupt */ -+ gintsts.b.conidstschng = 1; -+ dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); -+ -+ return 1; -+} -+ -+/** -+ * This interrupt indicates that a device is initiating the Session -+ * Request Protocol to request the host to turn on bus power so a new -+ * session can begin. The handler responds by turning on bus power. If -+ * the DWC_otg controller is in low power mode, the handler brings the -+ * controller out of low power mode before turning on bus power. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+int32_t dwc_otg_handle_session_req_intr(dwc_otg_core_if_t *core_if) -+{ -+ hprt0_data_t hprt0; -+ gintsts_data_t gintsts; -+ -+#ifndef DWC_HOST_ONLY -+ DWC_DEBUGPL(DBG_ANY, "++Session Request Interrupt++\n"); -+ -+ if (dwc_otg_is_device_mode(core_if)) { -+ DWC_PRINT("SRP: Device mode\n"); -+ } else { -+ DWC_PRINT("SRP: Host mode\n"); -+ -+ /* Turn on the port power bit. */ -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prtpwr = 1; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ -+ /* Start the Connection timer. So a message can be displayed -+ * if connect does not occur within 10 seconds. */ -+ hcd_session_start(core_if); -+ } -+#endif -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.sessreqintr = 1; -+ dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); -+ -+ return 1; -+} -+ -+ -+void w_wakeup_detected(struct work_struct *p) -+{ -+ struct delayed_work *dw = container_of(p, struct delayed_work, work); -+ dwc_otg_core_if_t *core_if = container_of(dw, dwc_otg_core_if_t, w_wkp); -+ -+ /* -+ * Clear the Resume after 70ms. (Need 20 ms minimum. Use 70 ms -+ * so that OPT tests pass with all PHYs). -+ */ -+ hprt0_data_t hprt0 = {.d32=0}; -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ DWC_DEBUGPL(DBG_ANY,"Resume: HPRT0=%0x\n", hprt0.d32); -+// MDELAY(70); -+ hprt0.b.prtres = 0; /* Resume */ -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ DWC_DEBUGPL(DBG_ANY,"Clear Resume: HPRT0=%0x\n", dwc_read_reg32(core_if->host_if->hprt0)); -+} -+/** -+ * This interrupt indicates that the DWC_otg controller has detected a -+ * resume or remote wakeup sequence. If the DWC_otg controller is in -+ * low power mode, the handler must brings the controller out of low -+ * power mode. The controller automatically begins resume -+ * signaling. The handler schedules a time to stop resume signaling. -+ */ -+int32_t dwc_otg_handle_wakeup_detected_intr(dwc_otg_core_if_t *core_if) -+{ -+ gintsts_data_t gintsts; -+ -+ DWC_DEBUGPL(DBG_ANY, "++Resume and Remote Wakeup Detected Interrupt++\n"); -+ -+ if (dwc_otg_is_device_mode(core_if)) { -+ dctl_data_t dctl = {.d32=0}; -+ DWC_DEBUGPL(DBG_PCD, "DSTS=0x%0x\n", -+ dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts)); -+#ifdef PARTIAL_POWER_DOWN -+ if (core_if->hwcfg4.b.power_optimiz) { -+ pcgcctl_data_t power = {.d32=0}; -+ -+ power.d32 = dwc_read_reg32(core_if->pcgcctl); -+ DWC_DEBUGPL(DBG_CIL, "PCGCCTL=%0x\n", power.d32); -+ -+ power.b.stoppclk = 0; -+ dwc_write_reg32(core_if->pcgcctl, power.d32); -+ -+ power.b.pwrclmp = 0; -+ dwc_write_reg32(core_if->pcgcctl, power.d32); -+ -+ power.b.rstpdwnmodule = 0; -+ dwc_write_reg32(core_if->pcgcctl, power.d32); -+ } -+#endif -+ /* Clear the Remote Wakeup Signalling */ -+ dctl.b.rmtwkupsig = 1; -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dctl, -+ dctl.d32, 0); -+ -+ if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) { -+ core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p); -+ } -+ -+ } else { -+ pcgcctl_data_t pcgcctl = {.d32=0}; -+ -+ /* Restart the Phy Clock */ -+ pcgcctl.b.stoppclk = 1; -+ dwc_modify_reg32(core_if->pcgcctl, pcgcctl.d32, 0); -+ -+ queue_delayed_work(core_if->wq_otg, &core_if->w_wkp, ((70 * HZ / 1000) + 1)); -+ } -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.wkupintr = 1; -+ dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); -+ -+ return 1; -+} -+ -+/** -+ * This interrupt indicates that a device has been disconnected from -+ * the root port. -+ */ -+int32_t dwc_otg_handle_disconnect_intr(dwc_otg_core_if_t *core_if) -+{ -+ gintsts_data_t gintsts; -+ -+ DWC_DEBUGPL(DBG_ANY, "++Disconnect Detected Interrupt++ (%s) %s\n", -+ (dwc_otg_is_host_mode(core_if)?"Host":"Device"), -+ op_state_str(core_if)); -+ -+/** @todo Consolidate this if statement. */ -+#ifndef DWC_HOST_ONLY -+ if (core_if->op_state == B_HOST) { -+ dwc_otg_pcd_t *pcd; -+ -+ /* If in device mode Disconnect and stop the HCD, then -+ * start the PCD. */ -+ hcd_disconnect(core_if); -+ -+ pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_start(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ core_if->op_state = B_PERIPHERAL; -+ } else if (dwc_otg_is_device_mode(core_if)) { -+ gotgctl_data_t gotgctl = { .d32 = 0 }; -+ gotgctl.d32 = dwc_read_reg32(&core_if->core_global_regs->gotgctl); -+ if (gotgctl.b.hstsethnpen==1) { -+ /* Do nothing, if HNP in process the OTG -+ * interrupt "Host Negotiation Detected" -+ * interrupt will do the mode switch. -+ */ -+ } else if (gotgctl.b.devhnpen == 0) { -+ dwc_otg_pcd_t *pcd; -+ -+ /* If in device mode Disconnect and stop the HCD, then -+ * start the PCD. */ -+ hcd_disconnect(core_if); -+ -+ pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_start(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ -+ core_if->op_state = B_PERIPHERAL; -+ } else { -+ DWC_DEBUGPL(DBG_ANY,"!a_peripheral && !devhnpen\n"); -+ } -+ } else { -+ if (core_if->op_state == A_HOST) { -+ /* A-Cable still connected but device disconnected. */ -+ hcd_disconnect(core_if); -+ } -+ } -+#endif -+ -+ gintsts.d32 = 0; -+ gintsts.b.disconnect = 1; -+ dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); -+ return 1; -+} -+/** -+ * This interrupt indicates that SUSPEND state has been detected on -+ * the USB. -+ * -+ * For HNP the USB Suspend interrupt signals the change from -+ * "a_peripheral" to "a_host". -+ * -+ * When power management is enabled the core will be put in low power -+ * mode. -+ */ -+int32_t dwc_otg_handle_usb_suspend_intr(dwc_otg_core_if_t *core_if) -+{ -+ dsts_data_t dsts; -+ gintsts_data_t gintsts; -+ -+ DWC_DEBUGPL(DBG_ANY,"USB SUSPEND\n"); -+ -+ if (dwc_otg_is_device_mode(core_if)) { -+ dwc_otg_pcd_t *pcd; -+ -+ /* Check the Device status register to determine if the Suspend -+ * state is active. */ -+ dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); -+ DWC_DEBUGPL(DBG_PCD, "DSTS=0x%0x\n", dsts.d32); -+ DWC_DEBUGPL(DBG_PCD, "DSTS.Suspend Status=%d " -+ "HWCFG4.power Optimize=%d\n", -+ dsts.b.suspsts, core_if->hwcfg4.b.power_optimiz); -+ -+ -+#ifdef PARTIAL_POWER_DOWN -+/** @todo Add a module parameter for power management. */ -+ if (dsts.b.suspsts && core_if->hwcfg4.b.power_optimiz) { -+ pcgcctl_data_t power = {.d32=0}; -+ DWC_DEBUGPL(DBG_CIL, "suspend\n"); -+ -+ power.b.pwrclmp = 1; -+ dwc_write_reg32(core_if->pcgcctl, power.d32); -+ -+ power.b.rstpdwnmodule = 1; -+ dwc_modify_reg32(core_if->pcgcctl, 0, power.d32); -+ -+ power.b.stoppclk = 1; -+ dwc_modify_reg32(core_if->pcgcctl, 0, power.d32); -+ } else { -+ DWC_DEBUGPL(DBG_ANY,"disconnect?\n"); -+ } -+#endif -+ /* PCD callback for suspend. */ -+ pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_suspend(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ } else { -+ if (core_if->op_state == A_PERIPHERAL) { -+ dwc_otg_pcd_t *pcd; -+ -+ DWC_DEBUGPL(DBG_ANY,"a_peripheral->a_host\n"); -+ /* Clear the a_peripheral flag, back to a_host. */ -+ -+ pcd=(dwc_otg_pcd_t *)core_if->pcd_cb->p; -+ if(unlikely(!pcd)) { -+ DWC_ERROR("%s: data structure not initialized properly, core_if->pcd_cb->p = NULL!!!",__func__); -+ BUG(); -+ } -+ SPIN_LOCK(&pcd->lock); -+ -+ pcd_stop(core_if); -+ -+ SPIN_UNLOCK(&pcd->lock); -+ -+ hcd_start(core_if); -+ core_if->op_state = A_HOST; -+ } -+ } -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.usbsuspend = 1; -+ dwc_write_reg32(&core_if->core_global_regs->gintsts, gintsts.d32); -+ -+ return 1; -+} -+ -+ -+/** -+ * This function returns the Core Interrupt register. -+ */ -+static inline uint32_t dwc_otg_read_common_intr(dwc_otg_core_if_t *core_if) -+{ -+ gintsts_data_t gintsts; -+ gintmsk_data_t gintmsk; -+ gintmsk_data_t gintmsk_common = {.d32=0}; -+ gintmsk_common.b.wkupintr = 1; -+ gintmsk_common.b.sessreqintr = 1; -+ gintmsk_common.b.conidstschng = 1; -+ gintmsk_common.b.otgintr = 1; -+ gintmsk_common.b.modemismatch = 1; -+ gintmsk_common.b.disconnect = 1; -+ gintmsk_common.b.usbsuspend = 1; -+ /** @todo: The port interrupt occurs while in device -+ * mode. Added code to CIL to clear the interrupt for now! -+ */ -+ gintmsk_common.b.portintr = 1; -+ -+ gintsts.d32 = dwc_read_reg32(&core_if->core_global_regs->gintsts); -+ gintmsk.d32 = dwc_read_reg32(&core_if->core_global_regs->gintmsk); -+#ifdef DEBUG -+ /* if any common interrupts set */ -+ if (gintsts.d32 & gintmsk_common.d32) { -+ DWC_DEBUGPL(DBG_ANY, "gintsts=%08x gintmsk=%08x\n", -+ gintsts.d32, gintmsk.d32); -+ } -+#endif -+ -+ return ((gintsts.d32 & gintmsk.d32) & gintmsk_common.d32); -+ -+} -+ -+/** -+ * Common interrupt handler. -+ * -+ * The common interrupts are those that occur in both Host and Device mode. -+ * This handler handles the following interrupts: -+ * - Mode Mismatch Interrupt -+ * - Disconnect Interrupt -+ * - OTG Interrupt -+ * - Connector ID Status Change Interrupt -+ * - Session Request Interrupt. -+ * - Resume / Remote Wakeup Detected Interrupt. -+ * -+ */ -+int32_t dwc_otg_handle_common_intr(dwc_otg_core_if_t *core_if) -+{ -+ int retval = 0; -+ gintsts_data_t gintsts; -+ -+ gintsts.d32 = dwc_otg_read_common_intr(core_if); -+ -+ if (gintsts.b.modemismatch) { -+ retval |= dwc_otg_handle_mode_mismatch_intr(core_if); -+ } -+ if (gintsts.b.otgintr) { -+ retval |= dwc_otg_handle_otg_intr(core_if); -+ } -+ if (gintsts.b.conidstschng) { -+ retval |= dwc_otg_handle_conn_id_status_change_intr(core_if); -+ } -+ if (gintsts.b.disconnect) { -+ retval |= dwc_otg_handle_disconnect_intr(core_if); -+ } -+ if (gintsts.b.sessreqintr) { -+ retval |= dwc_otg_handle_session_req_intr(core_if); -+ } -+ if (gintsts.b.wkupintr) { -+ retval |= dwc_otg_handle_wakeup_detected_intr(core_if); -+ } -+ if (gintsts.b.usbsuspend) { -+ retval |= dwc_otg_handle_usb_suspend_intr(core_if); -+ } -+ if (gintsts.b.portintr && dwc_otg_is_device_mode(core_if)) { -+ /* The port interrupt occurs while in device mode with HPRT0 -+ * Port Enable/Disable. -+ */ -+ gintsts.d32 = 0; -+ gintsts.b.portintr = 1; -+ dwc_write_reg32(&core_if->core_global_regs->gintsts, -+ gintsts.d32); -+ retval |= 1; -+ -+ } -+ -+ S3C2410X_CLEAR_EINTPEND(); -+ -+ return retval; -+} ---- /dev/null -+++ b/drivers/usb/dwc/otg_driver.c -@@ -0,0 +1,965 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_driver.c $ -+ * $Revision: #63 $ -+ * $Date: 2008/09/24 $ -+ * $Change: 1101777 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+ -+/** @file -+ * The dwc_otg_driver module provides the initialization and cleanup entry -+ * points for the DWC_otg driver. This module will be dynamically installed -+ * after Linux is booted using the insmod command. When the module is -+ * installed, the dwc_otg_driver_init function is called. When the module is -+ * removed (using rmmod), the dwc_otg_driver_cleanup function is called. -+ * -+ * This module also defines a data structure for the dwc_otg_driver, which is -+ * used in conjunction with the standard ARM lm_device structure. These -+ * structures allow the OTG driver to comply with the standard Linux driver -+ * model in which devices and drivers are registered with a bus driver. This -+ * has the benefit that Linux can expose attributes of the driver and device -+ * in its special sysfs file system. Users can then read or write files in -+ * this file system to perform diagnostics on the driver components or the -+ * device. -+ */ -+ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/init.h> -+#include <linux/device.h> -+#include <linux/errno.h> -+#include <linux/types.h> -+#include <linux/stat.h> /* permission constants */ -+#include <linux/version.h> -+#include <linux/platform_device.h> -+#include <linux/io.h> -+#include <linux/irq.h> -+#include <asm/io.h> -+ -+#include <asm/sizes.h> -+#include <mach/pm.h> -+ -+#include "otg_plat.h" -+#include "otg_attr.h" -+#include "otg_driver.h" -+#include "otg_cil.h" -+#include "otg_pcd.h" -+#include "otg_hcd.h" -+ -+#define DWC_DRIVER_VERSION "2.72a 24-JUN-2008" -+#define DWC_DRIVER_DESC "HS OTG USB Controller driver" -+ -+static const char dwc_driver_name[] = "dwc_otg"; -+ -+/*-------------------------------------------------------------------------*/ -+/* Encapsulate the module parameter settings */ -+ -+static dwc_otg_core_params_t dwc_otg_module_params = { -+ .opt = -1, -+ .otg_cap = -1, -+ .dma_enable = -1, -+ .dma_desc_enable = -1, -+ .dma_burst_size = -1, -+ .speed = -1, -+ .host_support_fs_ls_low_power = -1, -+ .host_ls_low_power_phy_clk = -1, -+ .enable_dynamic_fifo = -1, -+ .data_fifo_size = -1, -+ .dev_rx_fifo_size = -1, -+ .dev_nperio_tx_fifo_size = -1, -+ .dev_perio_tx_fifo_size = { -+ /* dev_perio_tx_fifo_size_1 */ -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1 -+ /* 15 */ -+ }, -+ .host_rx_fifo_size = -1, -+ .host_nperio_tx_fifo_size = -1, -+ .host_perio_tx_fifo_size = -1, -+ .max_transfer_size = -1, -+ .max_packet_count = -1, -+ .host_channels = -1, -+ .dev_endpoints = -1, -+ .phy_type = -1, -+ .phy_utmi_width = -1, -+ .phy_ulpi_ddr = -1, -+ .phy_ulpi_ext_vbus = -1, -+ .i2c_enable = -1, -+ .ulpi_fs_ls = -1, -+ .ts_dline = -1, -+ .en_multiple_tx_fifo = -1, -+ .dev_tx_fifo_size = { -+ /* dev_tx_fifo_size */ -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1, -+ -1 -+ /* 15 */ -+ }, -+ .thr_ctl = -1, -+ .tx_thr_length = -1, -+ .rx_thr_length = -1, -+ .pti_enable = -1, -+ .mpi_enable = -1, -+}; -+ -+/** -+ * Global Debug Level Mask. -+ */ -+uint32_t g_dbg_lvl = 0; /* OFF */ -+ -+/** -+ * This function is called during module intialization to verify that -+ * the module parameters are in a valid state. -+ */ -+static int check_parameters(dwc_otg_core_if_t *core_if) -+{ -+ int i; -+ int retval = 0; -+ -+/* Checks if the parameter is outside of its valid range of values */ -+#define DWC_OTG_PARAM_TEST(_param_, _low_, _high_) \ -+ ((dwc_otg_module_params._param_ < (_low_)) || \ -+ (dwc_otg_module_params._param_ > (_high_))) -+ -+/* If the parameter has been set by the user, check that the parameter value is -+ * within the value range of values. If not, report a module error. */ -+#define DWC_OTG_PARAM_ERR(_param_, _low_, _high_, _string_) \ -+ do { \ -+ if (dwc_otg_module_params._param_ != -1) { \ -+ if (DWC_OTG_PARAM_TEST(_param_, (_low_), (_high_))) { \ -+ DWC_ERROR("`%d' invalid for parameter `%s'\n", \ -+ dwc_otg_module_params._param_, _string_); \ -+ dwc_otg_module_params._param_ = dwc_param_##_param_##_default; \ -+ retval++; \ -+ } \ -+ } \ -+ } while (0) -+ -+ DWC_OTG_PARAM_ERR(opt,0,1,"opt"); -+ DWC_OTG_PARAM_ERR(otg_cap,0,2,"otg_cap"); -+ DWC_OTG_PARAM_ERR(dma_enable,0,1,"dma_enable"); -+ DWC_OTG_PARAM_ERR(dma_desc_enable,0,1,"dma_desc_enable"); -+ DWC_OTG_PARAM_ERR(speed,0,1,"speed"); -+ DWC_OTG_PARAM_ERR(host_support_fs_ls_low_power,0,1,"host_support_fs_ls_low_power"); -+ DWC_OTG_PARAM_ERR(host_ls_low_power_phy_clk,0,1,"host_ls_low_power_phy_clk"); -+ DWC_OTG_PARAM_ERR(enable_dynamic_fifo,0,1,"enable_dynamic_fifo"); -+ DWC_OTG_PARAM_ERR(data_fifo_size,32,32768,"data_fifo_size"); -+ DWC_OTG_PARAM_ERR(dev_rx_fifo_size,16,32768,"dev_rx_fifo_size"); -+ DWC_OTG_PARAM_ERR(dev_nperio_tx_fifo_size,16,32768,"dev_nperio_tx_fifo_size"); -+ DWC_OTG_PARAM_ERR(host_rx_fifo_size,16,32768,"host_rx_fifo_size"); -+ DWC_OTG_PARAM_ERR(host_nperio_tx_fifo_size,16,32768,"host_nperio_tx_fifo_size"); -+ DWC_OTG_PARAM_ERR(host_perio_tx_fifo_size,16,32768,"host_perio_tx_fifo_size"); -+ DWC_OTG_PARAM_ERR(max_transfer_size,2047,524288,"max_transfer_size"); -+ DWC_OTG_PARAM_ERR(max_packet_count,15,511,"max_packet_count"); -+ DWC_OTG_PARAM_ERR(host_channels,1,16,"host_channels"); -+ DWC_OTG_PARAM_ERR(dev_endpoints,1,15,"dev_endpoints"); -+ DWC_OTG_PARAM_ERR(phy_type,0,2,"phy_type"); -+ DWC_OTG_PARAM_ERR(phy_ulpi_ddr,0,1,"phy_ulpi_ddr"); -+ DWC_OTG_PARAM_ERR(phy_ulpi_ext_vbus,0,1,"phy_ulpi_ext_vbus"); -+ DWC_OTG_PARAM_ERR(i2c_enable,0,1,"i2c_enable"); -+ DWC_OTG_PARAM_ERR(ulpi_fs_ls,0,1,"ulpi_fs_ls"); -+ DWC_OTG_PARAM_ERR(ts_dline,0,1,"ts_dline"); -+ -+ if (dwc_otg_module_params.dma_burst_size != -1) { -+ if (DWC_OTG_PARAM_TEST(dma_burst_size,1,1) && -+ DWC_OTG_PARAM_TEST(dma_burst_size,4,4) && -+ DWC_OTG_PARAM_TEST(dma_burst_size,8,8) && -+ DWC_OTG_PARAM_TEST(dma_burst_size,16,16) && -+ DWC_OTG_PARAM_TEST(dma_burst_size,32,32) && -+ DWC_OTG_PARAM_TEST(dma_burst_size,64,64) && -+ DWC_OTG_PARAM_TEST(dma_burst_size,128,128) && -+ DWC_OTG_PARAM_TEST(dma_burst_size,256,256)) { -+ DWC_ERROR("`%d' invalid for parameter `dma_burst_size'\n", -+ dwc_otg_module_params.dma_burst_size); -+ dwc_otg_module_params.dma_burst_size = 32; -+ retval++; -+ } -+ -+ { -+ uint8_t brst_sz = 0; -+ while(dwc_otg_module_params.dma_burst_size > 1) { -+ brst_sz ++; -+ dwc_otg_module_params.dma_burst_size >>= 1; -+ } -+ dwc_otg_module_params.dma_burst_size = brst_sz; -+ } -+ } -+ -+ if (dwc_otg_module_params.phy_utmi_width != -1) { -+ if (DWC_OTG_PARAM_TEST(phy_utmi_width, 8, 8) && -+ DWC_OTG_PARAM_TEST(phy_utmi_width, 16, 16)) { -+ DWC_ERROR("`%d' invalid for parameter `phy_utmi_width'\n", -+ dwc_otg_module_params.phy_utmi_width); -+ dwc_otg_module_params.phy_utmi_width = 16; -+ retval++; -+ } -+ } -+ -+ for (i = 0; i < 15; i++) { -+ /** @todo should be like above */ -+ //DWC_OTG_PARAM_ERR(dev_perio_tx_fifo_size[i], 4, 768, "dev_perio_tx_fifo_size"); -+ if (dwc_otg_module_params.dev_perio_tx_fifo_size[i] != -1) { -+ if (DWC_OTG_PARAM_TEST(dev_perio_tx_fifo_size[i], 4, 768)) { -+ DWC_ERROR("`%d' invalid for parameter `%s_%d'\n", -+ dwc_otg_module_params.dev_perio_tx_fifo_size[i], "dev_perio_tx_fifo_size", i); -+ dwc_otg_module_params.dev_perio_tx_fifo_size[i] = dwc_param_dev_perio_tx_fifo_size_default; -+ retval++; -+ } -+ } -+ } -+ -+ DWC_OTG_PARAM_ERR(en_multiple_tx_fifo, 0, 1, "en_multiple_tx_fifo"); -+ -+ for (i = 0; i < 15; i++) { -+ /** @todo should be like above */ -+ //DWC_OTG_PARAM_ERR(dev_tx_fifo_size[i], 4, 768, "dev_tx_fifo_size"); -+ if (dwc_otg_module_params.dev_tx_fifo_size[i] != -1) { -+ if (DWC_OTG_PARAM_TEST(dev_tx_fifo_size[i], 4, 768)) { -+ DWC_ERROR("`%d' invalid for parameter `%s_%d'\n", -+ dwc_otg_module_params.dev_tx_fifo_size[i], "dev_tx_fifo_size", i); -+ dwc_otg_module_params.dev_tx_fifo_size[i] = dwc_param_dev_tx_fifo_size_default; -+ retval++; -+ } -+ } -+ } -+ -+ DWC_OTG_PARAM_ERR(thr_ctl, 0, 7, "thr_ctl"); -+ DWC_OTG_PARAM_ERR(tx_thr_length, 8, 128, "tx_thr_length"); -+ DWC_OTG_PARAM_ERR(rx_thr_length, 8, 128, "rx_thr_length"); -+ -+ DWC_OTG_PARAM_ERR(pti_enable,0,1,"pti_enable"); -+ DWC_OTG_PARAM_ERR(mpi_enable,0,1,"mpi_enable"); -+ -+ /* At this point, all module parameters that have been set by the user -+ * are valid, and those that have not are left unset. Now set their -+ * default values and/or check the parameters against the hardware -+ * configurations of the OTG core. */ -+ -+/* This sets the parameter to the default value if it has not been set by the -+ * user */ -+#define DWC_OTG_PARAM_SET_DEFAULT(_param_) \ -+ ({ \ -+ int changed = 1; \ -+ if (dwc_otg_module_params._param_ == -1) { \ -+ changed = 0; \ -+ dwc_otg_module_params._param_ = dwc_param_##_param_##_default; \ -+ } \ -+ changed; \ -+ }) -+ -+/* This checks the macro agains the hardware configuration to see if it is -+ * valid. It is possible that the default value could be invalid. In this -+ * case, it will report a module error if the user touched the parameter. -+ * Otherwise it will adjust the value without any error. */ -+#define DWC_OTG_PARAM_CHECK_VALID(_param_, _str_, _is_valid_, _set_valid_) \ -+ ({ \ -+ int changed = DWC_OTG_PARAM_SET_DEFAULT(_param_); \ -+ int error = 0; \ -+ if (!(_is_valid_)) { \ -+ if (changed) { \ -+ DWC_ERROR("`%d' invalid for parameter `%s'. Check HW configuration.\n", dwc_otg_module_params._param_, _str_); \ -+ error = 1; \ -+ } \ -+ dwc_otg_module_params._param_ = (_set_valid_); \ -+ } \ -+ error; \ -+ }) -+ -+ /* OTG Cap */ -+ retval += DWC_OTG_PARAM_CHECK_VALID(otg_cap, "otg_cap", -+ ({ -+ int valid; -+ valid = 1; -+ switch (dwc_otg_module_params.otg_cap) { -+ case DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE: -+ if (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) -+ valid = 0; -+ break; -+ case DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE: -+ if ((core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) && -+ (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG) && -+ (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) && -+ (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) { -+ valid = 0; -+ } -+ break; -+ case DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE: -+ /* always valid */ -+ break; -+ } -+ valid; -+ }), -+ (((core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) || -+ (core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG) || -+ (core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) || -+ (core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) ? -+ DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE : -+ DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE)); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(dma_enable, "dma_enable", -+ ((dwc_otg_module_params.dma_enable == 1) && (core_if->hwcfg2.b.architecture == 0)) ? 0 : 1, -+ 0); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(dma_desc_enable, "dma_desc_enable", -+ ((dwc_otg_module_params.dma_desc_enable == 1) && -+ ((dwc_otg_module_params.dma_enable == 0) || (core_if->hwcfg4.b.desc_dma == 0))) ? 0 : 1, -+ 0); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(opt, "opt", 1, 0); -+ -+ DWC_OTG_PARAM_SET_DEFAULT(dma_burst_size); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(host_support_fs_ls_low_power, -+ "host_support_fs_ls_low_power", -+ 1, 0); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(enable_dynamic_fifo, -+ "enable_dynamic_fifo", -+ ((dwc_otg_module_params.enable_dynamic_fifo == 0) || -+ (core_if->hwcfg2.b.dynamic_fifo == 1)), 0); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(data_fifo_size, -+ "data_fifo_size", -+ (dwc_otg_module_params.data_fifo_size <= core_if->hwcfg3.b.dfifo_depth), -+ core_if->hwcfg3.b.dfifo_depth); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(dev_rx_fifo_size, -+ "dev_rx_fifo_size", -+ (dwc_otg_module_params.dev_rx_fifo_size <= dwc_read_reg32(&core_if->core_global_regs->grxfsiz)), -+ dwc_read_reg32(&core_if->core_global_regs->grxfsiz)); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(dev_nperio_tx_fifo_size, -+ "dev_nperio_tx_fifo_size", -+ (dwc_otg_module_params.dev_nperio_tx_fifo_size <= (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16)), -+ (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16)); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(host_rx_fifo_size, -+ "host_rx_fifo_size", -+ (dwc_otg_module_params.host_rx_fifo_size <= dwc_read_reg32(&core_if->core_global_regs->grxfsiz)), -+ dwc_read_reg32(&core_if->core_global_regs->grxfsiz)); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(host_nperio_tx_fifo_size, -+ "host_nperio_tx_fifo_size", -+ (dwc_otg_module_params.host_nperio_tx_fifo_size <= (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16)), -+ (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16)); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(host_perio_tx_fifo_size, -+ "host_perio_tx_fifo_size", -+ (dwc_otg_module_params.host_perio_tx_fifo_size <= ((dwc_read_reg32(&core_if->core_global_regs->hptxfsiz) >> 16))), -+ ((dwc_read_reg32(&core_if->core_global_regs->hptxfsiz) >> 16))); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(max_transfer_size, -+ "max_transfer_size", -+ (dwc_otg_module_params.max_transfer_size < (1 << (core_if->hwcfg3.b.xfer_size_cntr_width + 11))), -+ ((1 << (core_if->hwcfg3.b.xfer_size_cntr_width + 11)) - 1)); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(max_packet_count, -+ "max_packet_count", -+ (dwc_otg_module_params.max_packet_count < (1 << (core_if->hwcfg3.b.packet_size_cntr_width + 4))), -+ ((1 << (core_if->hwcfg3.b.packet_size_cntr_width + 4)) - 1)); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(host_channels, -+ "host_channels", -+ (dwc_otg_module_params.host_channels <= (core_if->hwcfg2.b.num_host_chan + 1)), -+ (core_if->hwcfg2.b.num_host_chan + 1)); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(dev_endpoints, -+ "dev_endpoints", -+ (dwc_otg_module_params.dev_endpoints <= (core_if->hwcfg2.b.num_dev_ep)), -+ core_if->hwcfg2.b.num_dev_ep); -+ -+/* -+ * Define the following to disable the FS PHY Hardware checking. This is for -+ * internal testing only. -+ * -+ * #define NO_FS_PHY_HW_CHECKS -+ */ -+ -+#ifdef NO_FS_PHY_HW_CHECKS -+ retval += DWC_OTG_PARAM_CHECK_VALID(phy_type, -+ "phy_type", 1, 0); -+#else -+ retval += DWC_OTG_PARAM_CHECK_VALID(phy_type, -+ "phy_type", -+ ({ -+ int valid = 0; -+ if ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_UTMI) && -+ ((core_if->hwcfg2.b.hs_phy_type == 1) || -+ (core_if->hwcfg2.b.hs_phy_type == 3))) { -+ valid = 1; -+ } -+ else if ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_ULPI) && -+ ((core_if->hwcfg2.b.hs_phy_type == 2) || -+ (core_if->hwcfg2.b.hs_phy_type == 3))) { -+ valid = 1; -+ } -+ else if ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) && -+ (core_if->hwcfg2.b.fs_phy_type == 1)) { -+ valid = 1; -+ } -+ valid; -+ }), -+ ({ -+ int set = DWC_PHY_TYPE_PARAM_FS; -+ if (core_if->hwcfg2.b.hs_phy_type) { -+ if ((core_if->hwcfg2.b.hs_phy_type == 3) || -+ (core_if->hwcfg2.b.hs_phy_type == 1)) { -+ set = DWC_PHY_TYPE_PARAM_UTMI; -+ } -+ else { -+ set = DWC_PHY_TYPE_PARAM_ULPI; -+ } -+ } -+ set; -+ })); -+#endif -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(speed, "speed", -+ (dwc_otg_module_params.speed == 0) && (dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) ? 0 : 1, -+ dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS ? 1 : 0); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(host_ls_low_power_phy_clk, -+ "host_ls_low_power_phy_clk", -+ ((dwc_otg_module_params.host_ls_low_power_phy_clk == DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ) && (dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) ? 0 : 1), -+ ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) ? DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ : DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ)); -+ -+ DWC_OTG_PARAM_SET_DEFAULT(phy_ulpi_ddr); -+ DWC_OTG_PARAM_SET_DEFAULT(phy_ulpi_ext_vbus); -+ DWC_OTG_PARAM_SET_DEFAULT(phy_utmi_width); -+ DWC_OTG_PARAM_SET_DEFAULT(ulpi_fs_ls); -+ DWC_OTG_PARAM_SET_DEFAULT(ts_dline); -+ -+#ifdef NO_FS_PHY_HW_CHECKS -+ retval += DWC_OTG_PARAM_CHECK_VALID(i2c_enable, "i2c_enable", 1, 0); -+#else -+ retval += DWC_OTG_PARAM_CHECK_VALID(i2c_enable, -+ "i2c_enable", -+ (dwc_otg_module_params.i2c_enable == 1) && (core_if->hwcfg3.b.i2c == 0) ? 0 : 1, -+ 0); -+#endif -+ -+ for (i = 0; i < 15; i++) { -+ int changed = 1; -+ int error = 0; -+ -+ if (dwc_otg_module_params.dev_perio_tx_fifo_size[i] == -1) { -+ changed = 0; -+ dwc_otg_module_params.dev_perio_tx_fifo_size[i] = dwc_param_dev_perio_tx_fifo_size_default; -+ } -+ if (!(dwc_otg_module_params.dev_perio_tx_fifo_size[i] <= (dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i])))) { -+ if (changed) { -+ DWC_ERROR("`%d' invalid for parameter `dev_perio_fifo_size_%d'. Check HW configuration.\n", dwc_otg_module_params.dev_perio_tx_fifo_size[i], i); -+ error = 1; -+ } -+ dwc_otg_module_params.dev_perio_tx_fifo_size[i] = dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i]); -+ } -+ retval += error; -+ } -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(en_multiple_tx_fifo, "en_multiple_tx_fifo", -+ ((dwc_otg_module_params.en_multiple_tx_fifo == 1) && (core_if->hwcfg4.b.ded_fifo_en == 0)) ? 0 : 1, -+ 0); -+ -+ for (i = 0; i < 15; i++) { -+ int changed = 1; -+ int error = 0; -+ -+ if (dwc_otg_module_params.dev_tx_fifo_size[i] == -1) { -+ changed = 0; -+ dwc_otg_module_params.dev_tx_fifo_size[i] = dwc_param_dev_tx_fifo_size_default; -+ } -+ if (!(dwc_otg_module_params.dev_tx_fifo_size[i] <= (dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i])))) { -+ if (changed) { -+ DWC_ERROR("%d' invalid for parameter `dev_perio_fifo_size_%d'. Check HW configuration.\n", dwc_otg_module_params.dev_tx_fifo_size[i], i); -+ error = 1; -+ } -+ dwc_otg_module_params.dev_tx_fifo_size[i] = dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i]); -+ } -+ retval += error; -+ } -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(thr_ctl, "thr_ctl", -+ ((dwc_otg_module_params.thr_ctl != 0) && ((dwc_otg_module_params.dma_enable == 0) || (core_if->hwcfg4.b.ded_fifo_en == 0))) ? 0 : 1, -+ 0); -+ -+ DWC_OTG_PARAM_SET_DEFAULT(tx_thr_length); -+ DWC_OTG_PARAM_SET_DEFAULT(rx_thr_length); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(pti_enable, "pti_enable", -+ ((dwc_otg_module_params.pti_enable == 0) || ((dwc_otg_module_params.pti_enable == 1) && (core_if->snpsid >= 0x4F54272A))) ? 1 : 0, -+ 0); -+ -+ retval += DWC_OTG_PARAM_CHECK_VALID(mpi_enable, "mpi_enable", -+ ((dwc_otg_module_params.mpi_enable == 0) || ((dwc_otg_module_params.mpi_enable == 1) && (core_if->hwcfg2.b.multi_proc_int == 1))) ? 1 : 0, -+ 0); -+ return retval; -+} -+ -+/** -+ * This function is the top level interrupt handler for the Common -+ * (Device and host modes) interrupts. -+ */ -+static irqreturn_t dwc_otg_common_irq(int irq, void *dev) -+{ -+ dwc_otg_device_t *otg_dev = dev; -+ int32_t retval = IRQ_NONE; -+ -+ retval = dwc_otg_handle_common_intr(otg_dev->core_if); -+ return IRQ_RETVAL(retval); -+} -+ -+/** -+ * This function is called when a lm_device is unregistered with the -+ * dwc_otg_driver. This happens, for example, when the rmmod command is -+ * executed. The device may or may not be electrically present. If it is -+ * present, the driver stops device processing. Any resources used on behalf -+ * of this device are freed. -+ * -+ * @param[in] lmdev -+ */ -+static int dwc_otg_driver_cleanup(struct platform_device *pdev) -+{ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); -+ DWC_DEBUGPL(DBG_ANY, "%s(%p)\n", __func__, pdev); -+ -+ if (!otg_dev) { -+ /* Memory allocation for the dwc_otg_device failed. */ -+ DWC_DEBUGPL(DBG_ANY, "%s: otg_dev NULL!\n", __func__); -+ return 0; -+ } -+ -+ /* -+ * Free the IRQ -+ */ -+ if (otg_dev->common_irq_installed) { -+ free_irq(otg_dev->irq, otg_dev); -+ } -+ -+#ifndef DWC_DEVICE_ONLY -+ if (otg_dev->hcd) { -+ dwc_otg_hcd_remove(pdev); -+ } else { -+ DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->hcd NULL!\n", __func__); -+ return 0; -+ } -+#endif -+ -+#ifndef DWC_HOST_ONLY -+ if (otg_dev->pcd) { -+ dwc_otg_pcd_remove(pdev); -+ } -+#endif -+ if (otg_dev->core_if) { -+ dwc_otg_cil_remove(otg_dev->core_if); -+ } -+ -+ /* -+ * Remove the device attributes -+ */ -+ dwc_otg_attr_remove(pdev); -+ -+ /* -+ * Return the memory. -+ */ -+ if (otg_dev->base) { -+ iounmap(otg_dev->base); -+ } -+ kfree(otg_dev); -+ -+ /* -+ * Clear the drvdata pointer. -+ */ -+ platform_set_drvdata(pdev, 0); -+ -+ return 0; -+} -+ -+/** -+ * This function is called when an lm_device is bound to a -+ * dwc_otg_driver. It creates the driver components required to -+ * control the device (CIL, HCD, and PCD) and it initializes the -+ * device. The driver components are stored in a dwc_otg_device -+ * structure. A reference to the dwc_otg_device is saved in the -+ * lm_device. This allows the driver to access the dwc_otg_device -+ * structure on subsequent calls to driver methods for this device. -+ * -+ * @param[in] lmdev lm_device definition -+ */ -+static int __devinit dwc_otg_driver_probe(struct platform_device *pdev) -+{ -+ struct device *dev = &pdev->dev; -+ int retval = 0; -+ uint32_t snpsid; -+ dwc_otg_device_t *dwc_otg_device; -+ struct resource *res; -+ -+ dev_dbg(dev, "dwc_otg_driver_probe(%p)\n", pdev); -+ -+ dwc_otg_device = kmalloc(sizeof(dwc_otg_device_t), GFP_KERNEL); -+ -+ if (!dwc_otg_device) { -+ dev_err(dev, "kmalloc of dwc_otg_device failed\n"); -+ retval = -ENOMEM; -+ goto fail; -+ } -+ -+ memset(dwc_otg_device, 0, sizeof(*dwc_otg_device)); -+ dwc_otg_device->reg_offset = 0xFFFFFFFF; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ if (!res) { -+ dev_err(dev, "Found OTG with no register addr.\n"); -+ retval = -ENODEV; -+ goto fail; -+ } -+ dwc_otg_device->rsrc_start = res->start; -+ dwc_otg_device->rsrc_len = res->end - res->start + 1; -+ -+ dwc_otg_device->base = ioremap(dwc_otg_device->rsrc_start, dwc_otg_device->rsrc_len); -+ -+ if (!dwc_otg_device->base) { -+ dev_err(dev, "ioremap() failed\n"); -+ retval = -ENOMEM; -+ goto fail; -+ } -+ dev_dbg(dev, "base=0x%08x\n", (unsigned)dwc_otg_device->base); -+ -+ /* -+ * Attempt to ensure this device is really a DWC_otg Controller. -+ * Read and verify the SNPSID register contents. The value should be -+ * 0x45F42XXX, which corresponds to "OT2", as in "OTG version 2.XX". -+ */ -+ snpsid = dwc_read_reg32((uint32_t *)((uint8_t *)dwc_otg_device->base + 0x40)); -+ -+ if ((snpsid & 0xFFFFF000) != OTG_CORE_REV_2_00) { -+ dev_err(dev, "Bad value for SNPSID: 0x%08x\n", snpsid); -+ retval = -EINVAL; -+ goto fail; -+ } -+ -+ DWC_PRINT("Core Release: %x.%x%x%x\n", -+ (snpsid >> 12 & 0xF), -+ (snpsid >> 8 & 0xF), -+ (snpsid >> 4 & 0xF), -+ (snpsid & 0xF)); -+ -+ /* -+ * Initialize driver data to point to the global DWC_otg -+ * Device structure. -+ */ -+ platform_set_drvdata(pdev, dwc_otg_device); -+ -+ dev_dbg(dev, "dwc_otg_device=0x%p\n", dwc_otg_device); -+ -+ dwc_otg_device->core_if = dwc_otg_cil_init(dwc_otg_device->base, -+ &dwc_otg_module_params); -+ -+ dwc_otg_device->core_if->snpsid = snpsid; -+ -+ if (!dwc_otg_device->core_if) { -+ dev_err(dev, "CIL initialization failed!\n"); -+ retval = -ENOMEM; -+ goto fail; -+ } -+ -+ /* -+ * Validate parameter values. -+ */ -+ if (check_parameters(dwc_otg_device->core_if)) { -+ retval = -EINVAL; -+ goto fail; -+ } -+ -+ /* -+ * Create Device Attributes in sysfs -+ */ -+ dwc_otg_attr_create(pdev); -+ -+ /* -+ * Disable the global interrupt until all the interrupt -+ * handlers are installed. -+ */ -+ dwc_otg_disable_global_interrupts(dwc_otg_device->core_if); -+ -+ /* -+ * Install the interrupt handler for the common interrupts before -+ * enabling common interrupts in core_init below. -+ */ -+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); -+ if (!res) { -+ dev_err(dev, "Fount OTG with to IRQ.\n"); -+ retval = -ENODEV; -+ goto fail; -+ } -+ dwc_otg_device->irq = res->start; -+ -+ retval = request_irq(res->start, dwc_otg_common_irq, -+ IRQF_SHARED, "dwc_otg", dwc_otg_device); -+ if (retval) { -+ DWC_ERROR("request of irq%d failed\n", res->start); -+ retval = -EBUSY; -+ goto fail; -+ } else { -+ dwc_otg_device->common_irq_installed = 1; -+ } -+ -+ /* -+ * Initialize the DWC_otg core. -+ */ -+ dwc_otg_core_init(dwc_otg_device->core_if); -+ -+#ifndef DWC_HOST_ONLY -+ /* -+ * Initialize the PCD -+ */ -+ retval = dwc_otg_pcd_init(pdev); -+ if (retval != 0) { -+ DWC_ERROR("dwc_otg_pcd_init failed\n"); -+ dwc_otg_device->pcd = NULL; -+ goto fail; -+ } -+#endif -+#ifndef DWC_DEVICE_ONLY -+ /* -+ * Initialize the HCD -+ */ -+ retval = dwc_otg_hcd_init(pdev); -+ if (retval != 0) { -+ DWC_ERROR("dwc_otg_hcd_init failed\n"); -+ dwc_otg_device->hcd = NULL; -+ goto fail; -+ } -+#endif -+ -+ /* -+ * Enable the global interrupt after all the interrupt -+ * handlers are installed. -+ */ -+ dwc_otg_enable_global_interrupts(dwc_otg_device->core_if); -+ -+ return 0; -+ -+ fail: -+ dwc_otg_driver_cleanup(pdev); -+ return retval; -+} -+ -+static int __devexit dwc_otg_driver_remove(struct platform_device *pdev) -+{ -+ return dwc_otg_driver_cleanup(pdev); -+} -+ -+static struct platform_driver dwc_otg_platform_driver = { -+ .driver.name = "dwc_otg", -+ .probe = dwc_otg_driver_probe, -+ .remove = __devexit_p(dwc_otg_driver_remove), -+}; -+ -+static int __init dwc_otg_init_module(void) -+{ -+ return platform_driver_register(&dwc_otg_platform_driver); -+} -+ -+static void __exit dwc_otg_cleanup_module(void) -+{ -+ platform_driver_unregister(&dwc_otg_platform_driver); -+} -+ -+module_init(dwc_otg_init_module); -+module_exit(dwc_otg_cleanup_module); -+ -+/** -+ * This function is called when the driver is removed from the kernel -+ * with the rmmod command. The driver unregisters itself with its bus -+ * driver. -+ * -+ */ -+ -+MODULE_DESCRIPTION(DWC_DRIVER_DESC); -+MODULE_AUTHOR("Synopsys Inc."); -+MODULE_LICENSE("GPL"); -+ -+module_param_named(otg_cap, dwc_otg_module_params.otg_cap, int, 0444); -+MODULE_PARM_DESC(otg_cap, "OTG Capabilities 0=HNP&SRP 1=SRP Only 2=None"); -+module_param_named(opt, dwc_otg_module_params.opt, int, 0444); -+MODULE_PARM_DESC(opt, "OPT Mode"); -+module_param_named(dma_enable, dwc_otg_module_params.dma_enable, int, 0444); -+MODULE_PARM_DESC(dma_enable, "DMA Mode 0=Slave 1=DMA enabled"); -+ -+module_param_named(dma_desc_enable, dwc_otg_module_params.dma_desc_enable, int, 0444); -+MODULE_PARM_DESC(dma_desc_enable, "DMA Desc Mode 0=Address DMA 1=DMA Descriptor enabled"); -+ -+module_param_named(dma_burst_size, dwc_otg_module_params.dma_burst_size, int, 0444); -+MODULE_PARM_DESC(dma_burst_size, "DMA Burst Size 1, 4, 8, 16, 32, 64, 128, 256"); -+module_param_named(speed, dwc_otg_module_params.speed, int, 0444); -+MODULE_PARM_DESC(speed, "Speed 0=High Speed 1=Full Speed"); -+module_param_named(host_support_fs_ls_low_power, dwc_otg_module_params.host_support_fs_ls_low_power, int, 0444); -+MODULE_PARM_DESC(host_support_fs_ls_low_power, "Support Low Power w/FS or LS 0=Support 1=Don't Support"); -+module_param_named(host_ls_low_power_phy_clk, dwc_otg_module_params.host_ls_low_power_phy_clk, int, 0444); -+MODULE_PARM_DESC(host_ls_low_power_phy_clk, "Low Speed Low Power Clock 0=48Mhz 1=6Mhz"); -+module_param_named(enable_dynamic_fifo, dwc_otg_module_params.enable_dynamic_fifo, int, 0444); -+MODULE_PARM_DESC(enable_dynamic_fifo, "0=cC Setting 1=Allow Dynamic Sizing"); -+module_param_named(data_fifo_size, dwc_otg_module_params.data_fifo_size, int, 0444); -+MODULE_PARM_DESC(data_fifo_size, "Total number of words in the data FIFO memory 32-32768"); -+module_param_named(dev_rx_fifo_size, dwc_otg_module_params.dev_rx_fifo_size, int, 0444); -+MODULE_PARM_DESC(dev_rx_fifo_size, "Number of words in the Rx FIFO 16-32768"); -+module_param_named(dev_nperio_tx_fifo_size, dwc_otg_module_params.dev_nperio_tx_fifo_size, int, 0444); -+MODULE_PARM_DESC(dev_nperio_tx_fifo_size, "Number of words in the non-periodic Tx FIFO 16-32768"); -+module_param_named(dev_perio_tx_fifo_size_1, dwc_otg_module_params.dev_perio_tx_fifo_size[0], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_1, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_2, dwc_otg_module_params.dev_perio_tx_fifo_size[1], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_2, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_3, dwc_otg_module_params.dev_perio_tx_fifo_size[2], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_3, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_4, dwc_otg_module_params.dev_perio_tx_fifo_size[3], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_4, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_5, dwc_otg_module_params.dev_perio_tx_fifo_size[4], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_5, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_6, dwc_otg_module_params.dev_perio_tx_fifo_size[5], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_6, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_7, dwc_otg_module_params.dev_perio_tx_fifo_size[6], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_7, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_8, dwc_otg_module_params.dev_perio_tx_fifo_size[7], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_8, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_9, dwc_otg_module_params.dev_perio_tx_fifo_size[8], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_9, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_10, dwc_otg_module_params.dev_perio_tx_fifo_size[9], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_10, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_11, dwc_otg_module_params.dev_perio_tx_fifo_size[10], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_11, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_12, dwc_otg_module_params.dev_perio_tx_fifo_size[11], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_12, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_13, dwc_otg_module_params.dev_perio_tx_fifo_size[12], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_13, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_14, dwc_otg_module_params.dev_perio_tx_fifo_size[13], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_14, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(dev_perio_tx_fifo_size_15, dwc_otg_module_params.dev_perio_tx_fifo_size[14], int, 0444); -+MODULE_PARM_DESC(dev_perio_tx_fifo_size_15, "Number of words in the periodic Tx FIFO 4-768"); -+module_param_named(host_rx_fifo_size, dwc_otg_module_params.host_rx_fifo_size, int, 0444); -+MODULE_PARM_DESC(host_rx_fifo_size, "Number of words in the Rx FIFO 16-32768"); -+module_param_named(host_nperio_tx_fifo_size, dwc_otg_module_params.host_nperio_tx_fifo_size, int, 0444); -+MODULE_PARM_DESC(host_nperio_tx_fifo_size, "Number of words in the non-periodic Tx FIFO 16-32768"); -+module_param_named(host_perio_tx_fifo_size, dwc_otg_module_params.host_perio_tx_fifo_size, int, 0444); -+MODULE_PARM_DESC(host_perio_tx_fifo_size, "Number of words in the host periodic Tx FIFO 16-32768"); -+module_param_named(max_transfer_size, dwc_otg_module_params.max_transfer_size, int, 0444); -+/** @todo Set the max to 512K, modify checks */ -+MODULE_PARM_DESC(max_transfer_size, "The maximum transfer size supported in bytes 2047-65535"); -+module_param_named(max_packet_count, dwc_otg_module_params.max_packet_count, int, 0444); -+MODULE_PARM_DESC(max_packet_count, "The maximum number of packets in a transfer 15-511"); -+module_param_named(host_channels, dwc_otg_module_params.host_channels, int, 0444); -+MODULE_PARM_DESC(host_channels, "The number of host channel registers to use 1-16"); -+module_param_named(dev_endpoints, dwc_otg_module_params.dev_endpoints, int, 0444); -+MODULE_PARM_DESC(dev_endpoints, "The number of endpoints in addition to EP0 available for device mode 1-15"); -+module_param_named(phy_type, dwc_otg_module_params.phy_type, int, 0444); -+MODULE_PARM_DESC(phy_type, "0=Reserved 1=UTMI+ 2=ULPI"); -+module_param_named(phy_utmi_width, dwc_otg_module_params.phy_utmi_width, int, 0444); -+MODULE_PARM_DESC(phy_utmi_width, "Specifies the UTMI+ Data Width 8 or 16 bits"); -+module_param_named(phy_ulpi_ddr, dwc_otg_module_params.phy_ulpi_ddr, int, 0444); -+MODULE_PARM_DESC(phy_ulpi_ddr, "ULPI at double or single data rate 0=Single 1=Double"); -+module_param_named(phy_ulpi_ext_vbus, dwc_otg_module_params.phy_ulpi_ext_vbus, int, 0444); -+MODULE_PARM_DESC(phy_ulpi_ext_vbus, "ULPI PHY using internal or external vbus 0=Internal"); -+module_param_named(i2c_enable, dwc_otg_module_params.i2c_enable, int, 0444); -+MODULE_PARM_DESC(i2c_enable, "FS PHY Interface"); -+module_param_named(ulpi_fs_ls, dwc_otg_module_params.ulpi_fs_ls, int, 0444); -+MODULE_PARM_DESC(ulpi_fs_ls, "ULPI PHY FS/LS mode only"); -+module_param_named(ts_dline, dwc_otg_module_params.ts_dline, int, 0444); -+MODULE_PARM_DESC(ts_dline, "Term select Dline pulsing for all PHYs"); -+module_param_named(debug, g_dbg_lvl, int, 0444); -+MODULE_PARM_DESC(debug, ""); -+ -+module_param_named(en_multiple_tx_fifo, dwc_otg_module_params.en_multiple_tx_fifo, int, 0444); -+MODULE_PARM_DESC(en_multiple_tx_fifo, "Dedicated Non Periodic Tx FIFOs 0=disabled 1=enabled"); -+module_param_named(dev_tx_fifo_size_1, dwc_otg_module_params.dev_tx_fifo_size[0], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_1, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_2, dwc_otg_module_params.dev_tx_fifo_size[1], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_2, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_3, dwc_otg_module_params.dev_tx_fifo_size[2], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_3, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_4, dwc_otg_module_params.dev_tx_fifo_size[3], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_4, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_5, dwc_otg_module_params.dev_tx_fifo_size[4], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_5, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_6, dwc_otg_module_params.dev_tx_fifo_size[5], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_6, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_7, dwc_otg_module_params.dev_tx_fifo_size[6], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_7, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_8, dwc_otg_module_params.dev_tx_fifo_size[7], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_8, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_9, dwc_otg_module_params.dev_tx_fifo_size[8], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_9, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_10, dwc_otg_module_params.dev_tx_fifo_size[9], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_10, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_11, dwc_otg_module_params.dev_tx_fifo_size[10], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_11, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_12, dwc_otg_module_params.dev_tx_fifo_size[11], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_12, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_13, dwc_otg_module_params.dev_tx_fifo_size[12], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_13, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_14, dwc_otg_module_params.dev_tx_fifo_size[13], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_14, "Number of words in the Tx FIFO 4-768"); -+module_param_named(dev_tx_fifo_size_15, dwc_otg_module_params.dev_tx_fifo_size[14], int, 0444); -+MODULE_PARM_DESC(dev_tx_fifo_size_15, "Number of words in the Tx FIFO 4-768"); -+ -+module_param_named(thr_ctl, dwc_otg_module_params.thr_ctl, int, 0444); -+MODULE_PARM_DESC(thr_ctl, "Thresholding enable flag bit 0 - non ISO Tx thr., 1 - ISO Tx thr., 2 - Rx thr.- bit 0=disabled 1=enabled"); -+module_param_named(tx_thr_length, dwc_otg_module_params.tx_thr_length, int, 0444); -+MODULE_PARM_DESC(tx_thr_length, "Tx Threshold length in 32 bit DWORDs"); -+module_param_named(rx_thr_length, dwc_otg_module_params.rx_thr_length, int, 0444); -+MODULE_PARM_DESC(rx_thr_length, "Rx Threshold length in 32 bit DWORDs"); -+ -+module_param_named(pti_enable, dwc_otg_module_params.pti_enable, int, 0444); -+MODULE_PARM_DESC(pti_enable, "Per Transfer Interrupt mode 0=disabled 1=enabled"); -+ -+module_param_named(mpi_enable, dwc_otg_module_params.mpi_enable, int, 0444); -+MODULE_PARM_DESC(mpi_enable, "Multiprocessor Interrupt mode 0=disabled 1=enabled"); ---- /dev/null -+++ b/drivers/usb/dwc/otg_driver.h -@@ -0,0 +1,62 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_driver.h $ -+ * $Revision: #12 $ -+ * $Date: 2008/07/15 $ -+ * $Change: 1064918 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+ -+#ifndef __DWC_OTG_DRIVER_H__ -+#define __DWC_OTG_DRIVER_H__ -+ -+/** @file -+ * This file contains the interface to the Linux driver. -+ */ -+#include "otg_cil.h" -+ -+/* Type declarations */ -+struct dwc_otg_pcd; -+struct dwc_otg_hcd; -+ -+/** -+ * This structure is a wrapper that encapsulates the driver components used to -+ * manage a single DWC_otg controller. -+ */ -+typedef struct dwc_otg_device { -+ void *base; -+ dwc_otg_core_if_t *core_if; -+ uint32_t reg_offset; -+ struct dwc_otg_pcd *pcd; -+ struct dwc_otg_hcd *hcd; -+ uint8_t common_irq_installed; -+ int irq; -+ uint32_t rsrc_start; -+ uint32_t rsrc_len; -+} dwc_otg_device_t; -+ -+#endif ---- /dev/null -+++ b/drivers/usb/dwc/otg_hcd.c -@@ -0,0 +1,2752 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd.c $ -+ * $Revision: #75 $ -+ * $Date: 2008/07/15 $ -+ * $Change: 1064940 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+#ifndef DWC_DEVICE_ONLY -+ -+/** -+ * @file -+ * -+ * This file contains the implementation of the HCD. In Linux, the HCD -+ * implements the hc_driver API. -+ */ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/init.h> -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/errno.h> -+#include <linux/list.h> -+#include <linux/interrupt.h> -+#include <linux/string.h> -+#include <linux/dma-mapping.h> -+#include <linux/version.h> -+ -+#include <mach/irqs.h> -+ -+#include "otg_driver.h" -+#include "otg_hcd.h" -+#include "otg_regs.h" -+ -+static const char dwc_otg_hcd_name[] = "dwc_otg_hcd"; -+ -+static const struct hc_driver dwc_otg_hc_driver = { -+ -+ .description = dwc_otg_hcd_name, -+ .product_desc = "DWC OTG Controller", -+ .hcd_priv_size = sizeof(dwc_otg_hcd_t), -+ .irq = dwc_otg_hcd_irq, -+ .flags = HCD_MEMORY | HCD_USB2, -+ .start = dwc_otg_hcd_start, -+ .stop = dwc_otg_hcd_stop, -+ .urb_enqueue = dwc_otg_hcd_urb_enqueue, -+ .urb_dequeue = dwc_otg_hcd_urb_dequeue, -+ .endpoint_disable = dwc_otg_hcd_endpoint_disable, -+ .get_frame_number = dwc_otg_hcd_get_frame_number, -+ .hub_status_data = dwc_otg_hcd_hub_status_data, -+ .hub_control = dwc_otg_hcd_hub_control, -+}; -+ -+/** -+ * Work queue function for starting the HCD when A-Cable is connected. -+ * The dwc_otg_hcd_start() must be called in a process context. -+ */ -+static void hcd_start_func(struct work_struct *_work) -+{ -+ struct delayed_work *dw = container_of(_work, struct delayed_work, work); -+ struct dwc_otg_hcd *otg_hcd = container_of(dw, struct dwc_otg_hcd, start_work); -+ struct usb_hcd *usb_hcd = container_of((void *)otg_hcd, struct usb_hcd, hcd_priv); -+ DWC_DEBUGPL(DBG_HCDV, "%s() %p\n", __func__, usb_hcd); -+ if (usb_hcd) { -+ dwc_otg_hcd_start(usb_hcd); -+ } -+} -+ -+/** -+ * HCD Callback function for starting the HCD when A-Cable is -+ * connected. -+ * -+ * @param p void pointer to the <code>struct usb_hcd</code> -+ */ -+static int32_t dwc_otg_hcd_start_cb(void *p) -+{ -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(p); -+ dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; -+ hprt0_data_t hprt0; -+ -+ if (core_if->op_state == B_HOST) { -+ /* -+ * Reset the port. During a HNP mode switch the reset -+ * needs to occur within 1ms and have a duration of at -+ * least 50ms. -+ */ -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prtrst = 1; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ ((struct usb_hcd *)p)->self.is_b_host = 1; -+ } else { -+ ((struct usb_hcd *)p)->self.is_b_host = 0; -+ } -+ -+ /* Need to start the HCD in a non-interrupt context. */ -+// INIT_WORK(&dwc_otg_hcd->start_work, hcd_start_func); -+ INIT_DELAYED_WORK(&dwc_otg_hcd->start_work, hcd_start_func); -+// schedule_work(&dwc_otg_hcd->start_work); -+ queue_delayed_work(core_if->wq_otg, &dwc_otg_hcd->start_work, 50 * HZ / 1000); -+ -+ return 1; -+} -+ -+/** -+ * HCD Callback function for stopping the HCD. -+ * -+ * @param p void pointer to the <code>struct usb_hcd</code> -+ */ -+static int32_t dwc_otg_hcd_stop_cb(void *p) -+{ -+ struct usb_hcd *usb_hcd = (struct usb_hcd *)p; -+ DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, p); -+ dwc_otg_hcd_stop(usb_hcd); -+ return 1; -+} -+ -+static void del_xfer_timers(dwc_otg_hcd_t *hcd) -+{ -+#ifdef DEBUG -+ int i; -+ int num_channels = hcd->core_if->core_params->host_channels; -+ for (i = 0; i < num_channels; i++) { -+ del_timer(&hcd->core_if->hc_xfer_timer[i]); -+ } -+#endif -+} -+ -+static void del_timers(dwc_otg_hcd_t *hcd) -+{ -+ del_xfer_timers(hcd); -+ del_timer(&hcd->conn_timer); -+} -+ -+/** -+ * Processes all the URBs in a single list of QHs. Completes them with -+ * -ETIMEDOUT and frees the QTD. -+ */ -+static void kill_urbs_in_qh_list(dwc_otg_hcd_t *hcd, struct list_head *qh_list) -+{ -+ struct list_head *qh_item; -+ dwc_otg_qh_t *qh; -+ struct list_head *qtd_item; -+ dwc_otg_qtd_t *qtd; -+ unsigned long flags; -+ -+ SPIN_LOCK_IRQSAVE(&hcd->lock, flags); -+ list_for_each(qh_item, qh_list) { -+ qh = list_entry(qh_item, dwc_otg_qh_t, qh_list_entry); -+ for (qtd_item = qh->qtd_list.next; -+ qtd_item != &qh->qtd_list; -+ qtd_item = qh->qtd_list.next) { -+ qtd = list_entry(qtd_item, dwc_otg_qtd_t, qtd_list_entry); -+ if (qtd->urb != NULL) { -+ dwc_otg_hcd_complete_urb(hcd, qtd->urb, -+ -ETIMEDOUT); -+ } -+ dwc_otg_hcd_qtd_remove_and_free(hcd, qtd); -+ } -+ } -+ SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags); -+} -+ -+/** -+ * Responds with an error status of ETIMEDOUT to all URBs in the non-periodic -+ * and periodic schedules. The QTD associated with each URB is removed from -+ * the schedule and freed. This function may be called when a disconnect is -+ * detected or when the HCD is being stopped. -+ */ -+static void kill_all_urbs(dwc_otg_hcd_t *hcd) -+{ -+ kill_urbs_in_qh_list(hcd, &hcd->non_periodic_sched_inactive); -+ kill_urbs_in_qh_list(hcd, &hcd->non_periodic_sched_active); -+ kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_inactive); -+ kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_ready); -+ kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_assigned); -+ kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_queued); -+} -+ -+/** -+ * HCD Callback function for disconnect of the HCD. -+ * -+ * @param p void pointer to the <code>struct usb_hcd</code> -+ */ -+static int32_t dwc_otg_hcd_disconnect_cb(void *p) -+{ -+ gintsts_data_t intr; -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(p); -+ -+ //DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, p); -+ -+ /* -+ * Set status flags for the hub driver. -+ */ -+ dwc_otg_hcd->flags.b.port_connect_status_change = 1; -+ dwc_otg_hcd->flags.b.port_connect_status = 0; -+ -+ /* -+ * Shutdown any transfers in process by clearing the Tx FIFO Empty -+ * interrupt mask and status bits and disabling subsequent host -+ * channel interrupts. -+ */ -+ intr.d32 = 0; -+ intr.b.nptxfempty = 1; -+ intr.b.ptxfempty = 1; -+ intr.b.hcintr = 1; -+ dwc_modify_reg32(&dwc_otg_hcd->core_if->core_global_regs->gintmsk, intr.d32, 0); -+ dwc_modify_reg32(&dwc_otg_hcd->core_if->core_global_regs->gintsts, intr.d32, 0); -+ -+ del_timers(dwc_otg_hcd); -+ -+ /* -+ * Turn off the vbus power only if the core has transitioned to device -+ * mode. If still in host mode, need to keep power on to detect a -+ * reconnection. -+ */ -+ if (dwc_otg_is_device_mode(dwc_otg_hcd->core_if)) { -+ if (dwc_otg_hcd->core_if->op_state != A_SUSPEND) { -+ hprt0_data_t hprt0 = { .d32=0 }; -+ DWC_PRINT("Disconnect: PortPower off\n"); -+ hprt0.b.prtpwr = 0; -+ dwc_write_reg32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0.d32); -+ } -+ -+ dwc_otg_disable_host_interrupts(dwc_otg_hcd->core_if); -+ } -+ -+ /* Respond with an error status to all URBs in the schedule. */ -+ kill_all_urbs(dwc_otg_hcd); -+ -+ if (dwc_otg_is_host_mode(dwc_otg_hcd->core_if)) { -+ /* Clean up any host channels that were in use. */ -+ int num_channels; -+ int i; -+ dwc_hc_t *channel; -+ dwc_otg_hc_regs_t *hc_regs; -+ hcchar_data_t hcchar; -+ -+ num_channels = dwc_otg_hcd->core_if->core_params->host_channels; -+ -+ if (!dwc_otg_hcd->core_if->dma_enable) { -+ /* Flush out any channel requests in slave mode. */ -+ for (i = 0; i < num_channels; i++) { -+ channel = dwc_otg_hcd->hc_ptr_array[i]; -+ if (list_empty(&channel->hc_list_entry)) { -+ hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[i]; -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ if (hcchar.b.chen) { -+ hcchar.b.chen = 0; -+ hcchar.b.chdis = 1; -+ hcchar.b.epdir = 0; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ } -+ } -+ } -+ } -+ -+ for (i = 0; i < num_channels; i++) { -+ channel = dwc_otg_hcd->hc_ptr_array[i]; -+ if (list_empty(&channel->hc_list_entry)) { -+ hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[i]; -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ if (hcchar.b.chen) { -+ /* Halt the channel. */ -+ hcchar.b.chdis = 1; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ } -+ -+ dwc_otg_hc_cleanup(dwc_otg_hcd->core_if, channel); -+ list_add_tail(&channel->hc_list_entry, -+ &dwc_otg_hcd->free_hc_list); -+ } -+ } -+ } -+ -+ /* A disconnect will end the session so the B-Device is no -+ * longer a B-host. */ -+ ((struct usb_hcd *)p)->self.is_b_host = 0; -+ return 1; -+} -+ -+/** -+ * Connection timeout function. An OTG host is required to display a -+ * message if the device does not connect within 10 seconds. -+ */ -+void dwc_otg_hcd_connect_timeout(unsigned long ptr) -+{ -+ DWC_DEBUGPL(DBG_HCDV, "%s(%x)\n", __func__, (int)ptr); -+ DWC_PRINT("Connect Timeout\n"); -+ DWC_ERROR("Device Not Connected/Responding\n"); -+} -+ -+/** -+ * Start the connection timer. An OTG host is required to display a -+ * message if the device does not connect within 10 seconds. The -+ * timer is deleted if a port connect interrupt occurs before the -+ * timer expires. -+ */ -+static void dwc_otg_hcd_start_connect_timer(dwc_otg_hcd_t *hcd) -+{ -+ init_timer(&hcd->conn_timer); -+ hcd->conn_timer.function = dwc_otg_hcd_connect_timeout; -+ hcd->conn_timer.data = 0; -+ hcd->conn_timer.expires = jiffies + (HZ * 10); -+ add_timer(&hcd->conn_timer); -+} -+ -+/** -+ * HCD Callback function for disconnect of the HCD. -+ * -+ * @param p void pointer to the <code>struct usb_hcd</code> -+ */ -+static int32_t dwc_otg_hcd_session_start_cb(void *p) -+{ -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(p); -+ DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, p); -+ dwc_otg_hcd_start_connect_timer(dwc_otg_hcd); -+ return 1; -+} -+ -+/** -+ * HCD Callback structure for handling mode switching. -+ */ -+static dwc_otg_cil_callbacks_t hcd_cil_callbacks = { -+ .start = dwc_otg_hcd_start_cb, -+ .stop = dwc_otg_hcd_stop_cb, -+ .disconnect = dwc_otg_hcd_disconnect_cb, -+ .session_start = dwc_otg_hcd_session_start_cb, -+ .p = 0, -+}; -+ -+/** -+ * Reset tasklet function -+ */ -+static void reset_tasklet_func(unsigned long data) -+{ -+ dwc_otg_hcd_t *dwc_otg_hcd = (dwc_otg_hcd_t *)data; -+ dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; -+ hprt0_data_t hprt0; -+ -+ DWC_DEBUGPL(DBG_HCDV, "USB RESET tasklet called\n"); -+ -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prtrst = 1; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ mdelay(60); -+ -+ hprt0.b.prtrst = 0; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ dwc_otg_hcd->flags.b.port_reset_change = 1; -+} -+ -+static struct tasklet_struct reset_tasklet = { -+ .next = NULL, -+ .state = 0, -+ .count = ATOMIC_INIT(0), -+ .func = reset_tasklet_func, -+ .data = 0, -+}; -+ -+/** -+ * Initializes the HCD. This function allocates memory for and initializes the -+ * static parts of the usb_hcd and dwc_otg_hcd structures. It also registers the -+ * USB bus with the core and calls the hc_driver->start() function. It returns -+ * a negative error on failure. -+ */ -+int dwc_otg_hcd_init(struct platform_device *pdev) -+{ -+ struct usb_hcd *hcd = NULL; -+ dwc_otg_hcd_t *dwc_otg_hcd = NULL; -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); -+ -+ int num_channels; -+ int i; -+ dwc_hc_t *channel; -+ -+ int retval = 0; -+ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD INIT\n"); -+ -+ /* Set device flags indicating whether the HCD supports DMA. */ -+ if (otg_dev->core_if->dma_enable) { -+ DWC_PRINT("Using DMA mode\n"); -+ -+ if (otg_dev->core_if->dma_desc_enable) { -+ DWC_PRINT("Device using Descriptor DMA mode\n"); -+ } else { -+ DWC_PRINT("Device using Buffer DMA mode\n"); -+ } -+ } -+ /* -+ * Allocate memory for the base HCD plus the DWC OTG HCD. -+ * Initialize the base HCD. -+ */ -+ -+ hcd = usb_create_hcd(&dwc_otg_hc_driver, &pdev->dev, "gadget"); -+ if (!hcd) { -+ retval = -ENOMEM; -+ goto error1; -+ } -+ -+ hcd->regs = otg_dev->base; -+ hcd->self.otg_port = 1; -+ -+ /* Integrate TT in root hub, by default this is disbled. */ -+ hcd->has_tt = 1; -+ -+ /* Initialize the DWC OTG HCD. */ -+ dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ dwc_otg_hcd->core_if = otg_dev->core_if; -+ otg_dev->hcd = dwc_otg_hcd; -+ init_hcd_usecs(dwc_otg_hcd); -+ -+ /* */ -+ spin_lock_init(&dwc_otg_hcd->lock); -+ -+ /* Register the HCD CIL Callbacks */ -+ dwc_otg_cil_register_hcd_callbacks(otg_dev->core_if, -+ &hcd_cil_callbacks, hcd); -+ -+ /* Initialize the non-periodic schedule. */ -+ INIT_LIST_HEAD(&dwc_otg_hcd->non_periodic_sched_inactive); -+ INIT_LIST_HEAD(&dwc_otg_hcd->non_periodic_sched_active); -+ -+ /* Initialize the periodic schedule. */ -+ INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_inactive); -+ INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_ready); -+ INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_assigned); -+ INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_queued); -+ -+ /* -+ * Create a host channel descriptor for each host channel implemented -+ * in the controller. Initialize the channel descriptor array. -+ */ -+ INIT_LIST_HEAD(&dwc_otg_hcd->free_hc_list); -+ num_channels = dwc_otg_hcd->core_if->core_params->host_channels; -+ memset(dwc_otg_hcd->hc_ptr_array, 0, sizeof(dwc_otg_hcd->hc_ptr_array)); -+ for (i = 0; i < num_channels; i++) { -+ channel = kmalloc(sizeof(dwc_hc_t), GFP_KERNEL); -+ if (channel == NULL) { -+ retval = -ENOMEM; -+ DWC_ERROR("%s: host channel allocation failed\n", __func__); -+ goto error2; -+ } -+ memset(channel, 0, sizeof(dwc_hc_t)); -+ channel->hc_num = i; -+ dwc_otg_hcd->hc_ptr_array[i] = channel; -+#ifdef DEBUG -+ init_timer(&dwc_otg_hcd->core_if->hc_xfer_timer[i]); -+#endif -+ DWC_DEBUGPL(DBG_HCDV, "HCD Added channel #%d, hc=%p\n", i, channel); -+ } -+ -+ /* Initialize the Connection timeout timer. */ -+ init_timer(&dwc_otg_hcd->conn_timer); -+ -+ /* Initialize reset tasklet. */ -+ reset_tasklet.data = (unsigned long) dwc_otg_hcd; -+ dwc_otg_hcd->reset_tasklet = &reset_tasklet; -+ -+ /* -+ * Finish generic HCD initialization and start the HCD. This function -+ * allocates the DMA buffer pool, registers the USB bus, requests the -+ * IRQ line, and calls dwc_otg_hcd_start method. -+ */ -+ retval = usb_add_hcd(hcd, otg_dev->irq, IRQF_SHARED); -+ if (retval < 0) { -+ goto error2; -+ } -+ -+ /* -+ * Allocate space for storing data on status transactions. Normally no -+ * data is sent, but this space acts as a bit bucket. This must be -+ * done after usb_add_hcd since that function allocates the DMA buffer -+ * pool. -+ */ -+ if (otg_dev->core_if->dma_enable) { -+ dwc_otg_hcd->status_buf = -+ dma_alloc_coherent(&pdev->dev, -+ DWC_OTG_HCD_STATUS_BUF_SIZE, -+ &dwc_otg_hcd->status_buf_dma, -+ GFP_KERNEL | GFP_DMA); -+ } else { -+ dwc_otg_hcd->status_buf = kmalloc(DWC_OTG_HCD_STATUS_BUF_SIZE, -+ GFP_KERNEL); -+ } -+ if (!dwc_otg_hcd->status_buf) { -+ retval = -ENOMEM; -+ DWC_ERROR("%s: status_buf allocation failed\n", __func__); -+ goto error3; -+ } -+ -+ dwc_otg_hcd->otg_dev = otg_dev; -+ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Initialized HCD, usbbus=%d\n", -+ hcd->self.busnum); -+ return 0; -+ -+ /* Error conditions */ -+ error3: -+ usb_remove_hcd(hcd); -+ error2: -+ dwc_otg_hcd_free(hcd); -+ usb_put_hcd(hcd); -+ error1: -+ return retval; -+} -+ -+/** -+ * Removes the HCD. -+ * Frees memory and resources associated with the HCD and deregisters the bus. -+ */ -+void dwc_otg_hcd_remove(struct platform_device *pdev) -+{ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); -+ dwc_otg_hcd_t *dwc_otg_hcd; -+ struct usb_hcd *hcd; -+ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD REMOVE\n"); -+ -+ if (!otg_dev) { -+ DWC_DEBUGPL(DBG_ANY, "%s: otg_dev NULL!\n", __func__); -+ return; -+ } -+ -+ dwc_otg_hcd = otg_dev->hcd; -+ -+ if (!dwc_otg_hcd) { -+ DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->hcd NULL!\n", __func__); -+ return; -+ } -+ -+ hcd = dwc_otg_hcd_to_hcd(dwc_otg_hcd); -+ -+ if (!hcd) { -+ DWC_DEBUGPL(DBG_ANY, "%s: dwc_otg_hcd_to_hcd(dwc_otg_hcd) NULL!\n", __func__); -+ return; -+ } -+ -+ /* Turn off all interrupts */ -+ dwc_write_reg32(&dwc_otg_hcd->core_if->core_global_regs->gintmsk, 0); -+ dwc_modify_reg32(&dwc_otg_hcd->core_if->core_global_regs->gahbcfg, 1, 0); -+ -+ usb_remove_hcd(hcd); -+ dwc_otg_hcd_free(hcd); -+ usb_put_hcd(hcd); -+} -+ -+/* ========================================================================= -+ * Linux HC Driver Functions -+ * ========================================================================= */ -+ -+/** -+ * Initializes dynamic portions of the DWC_otg HCD state. -+ */ -+static void hcd_reinit(dwc_otg_hcd_t *hcd) -+{ -+ struct list_head *item; -+ int num_channels; -+ int i; -+ dwc_hc_t *channel; -+ -+ hcd->flags.d32 = 0; -+ -+ hcd->non_periodic_qh_ptr = &hcd->non_periodic_sched_active; -+ hcd->non_periodic_channels = 0; -+ hcd->periodic_channels = 0; -+ -+ /* -+ * Put all channels in the free channel list and clean up channel -+ * states. -+ */ -+ item = hcd->free_hc_list.next; -+ while (item != &hcd->free_hc_list) { -+ list_del(item); -+ item = hcd->free_hc_list.next; -+ } -+ num_channels = hcd->core_if->core_params->host_channels; -+ for (i = 0; i < num_channels; i++) { -+ channel = hcd->hc_ptr_array[i]; -+ list_add_tail(&channel->hc_list_entry, &hcd->free_hc_list); -+ dwc_otg_hc_cleanup(hcd->core_if, channel); -+ } -+ -+ /* Initialize the DWC core for host mode operation. */ -+ dwc_otg_core_host_init(hcd->core_if); -+} -+ -+/** Initializes the DWC_otg controller and its root hub and prepares it for host -+ * mode operation. Activates the root port. Returns 0 on success and a negative -+ * error code on failure. */ -+int dwc_otg_hcd_start(struct usb_hcd *hcd) -+{ -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; -+ struct usb_bus *bus; -+ -+ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD START\n"); -+ -+ bus = hcd_to_bus(hcd); -+ -+ /* Initialize the bus state. If the core is in Device Mode -+ * HALT the USB bus and return. */ -+ if (dwc_otg_is_device_mode(core_if)) { -+ hcd->state = HC_STATE_RUNNING; -+ return 0; -+ } -+ hcd->state = HC_STATE_RUNNING; -+ -+ /* Initialize and connect root hub if one is not already attached */ -+ if (bus->root_hub) { -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Has Root Hub\n"); -+ /* Inform the HUB driver to resume. */ -+ usb_hcd_resume_root_hub(hcd); -+ } -+ else { -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Does Not Have Root Hub\n"); -+ } -+ -+ hcd_reinit(dwc_otg_hcd); -+ -+ return 0; -+} -+ -+static void qh_list_free(dwc_otg_hcd_t *hcd, struct list_head *qh_list) -+{ -+ struct list_head *item; -+ dwc_otg_qh_t *qh; -+ unsigned long flags; -+ -+ if (!qh_list->next) { -+ /* The list hasn't been initialized yet. */ -+ return; -+ } -+ -+ /* Ensure there are no QTDs or URBs left. */ -+ kill_urbs_in_qh_list(hcd, qh_list); -+ -+ SPIN_LOCK_IRQSAVE(&hcd->lock, flags); -+ for (item = qh_list->next; item != qh_list; item = qh_list->next) { -+ qh = list_entry(item, dwc_otg_qh_t, qh_list_entry); -+ dwc_otg_hcd_qh_remove_and_free(hcd, qh); -+ } -+ SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags); -+} -+ -+/** -+ * Halts the DWC_otg host mode operations in a clean manner. USB transfers are -+ * stopped. -+ */ -+void dwc_otg_hcd_stop(struct usb_hcd *hcd) -+{ -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ hprt0_data_t hprt0 = { .d32=0 }; -+ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD STOP\n"); -+ -+ /* Turn off all host-specific interrupts. */ -+ dwc_otg_disable_host_interrupts(dwc_otg_hcd->core_if); -+ -+ /* -+ * The root hub should be disconnected before this function is called. -+ * The disconnect will clear the QTD lists (via ..._hcd_urb_dequeue) -+ * and the QH lists (via ..._hcd_endpoint_disable). -+ */ -+ -+ /* Turn off the vbus power */ -+ DWC_PRINT("PortPower off\n"); -+ hprt0.b.prtpwr = 0; -+ dwc_write_reg32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0.d32); -+} -+ -+/** Returns the current frame number. */ -+int dwc_otg_hcd_get_frame_number(struct usb_hcd *hcd) -+{ -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ hfnum_data_t hfnum; -+ -+ hfnum.d32 = dwc_read_reg32(&dwc_otg_hcd->core_if-> -+ host_if->host_global_regs->hfnum); -+ -+#ifdef DEBUG_SOF -+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD GET FRAME NUMBER %d\n", hfnum.b.frnum); -+#endif -+ return hfnum.b.frnum; -+} -+ -+/** -+ * Frees secondary storage associated with the dwc_otg_hcd structure contained -+ * in the struct usb_hcd field. -+ */ -+void dwc_otg_hcd_free(struct usb_hcd *hcd) -+{ -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ int i; -+ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD FREE\n"); -+ -+ del_timers(dwc_otg_hcd); -+ -+ /* Free memory for QH/QTD lists */ -+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_inactive); -+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_active); -+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_inactive); -+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_ready); -+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_assigned); -+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_queued); -+ -+ /* Free memory for the host channels. */ -+ for (i = 0; i < MAX_EPS_CHANNELS; i++) { -+ dwc_hc_t *hc = dwc_otg_hcd->hc_ptr_array[i]; -+ if (hc != NULL) { -+ DWC_DEBUGPL(DBG_HCDV, "HCD Free channel #%i, hc=%p\n", i, hc); -+ kfree(hc); -+ } -+ } -+ -+ if (dwc_otg_hcd->core_if->dma_enable) { -+ if (dwc_otg_hcd->status_buf_dma) { -+ dma_free_coherent(hcd->self.controller, -+ DWC_OTG_HCD_STATUS_BUF_SIZE, -+ dwc_otg_hcd->status_buf, -+ dwc_otg_hcd->status_buf_dma); -+ } -+ } else if (dwc_otg_hcd->status_buf != NULL) { -+ kfree(dwc_otg_hcd->status_buf); -+ } -+} -+ -+#ifdef DEBUG -+static void dump_urb_info(struct urb *urb, char* fn_name) -+{ -+ DWC_PRINT("%s, urb %p\n", fn_name, urb); -+ DWC_PRINT(" Device address: %d\n", usb_pipedevice(urb->pipe)); -+ DWC_PRINT(" Endpoint: %d, %s\n", usb_pipeendpoint(urb->pipe), -+ (usb_pipein(urb->pipe) ? "IN" : "OUT")); -+ DWC_PRINT(" Endpoint type: %s\n", -+ ({char *pipetype; -+ switch (usb_pipetype(urb->pipe)) { -+ case PIPE_CONTROL: pipetype = "CONTROL"; break; -+ case PIPE_BULK: pipetype = "BULK"; break; -+ case PIPE_INTERRUPT: pipetype = "INTERRUPT"; break; -+ case PIPE_ISOCHRONOUS: pipetype = "ISOCHRONOUS"; break; -+ default: pipetype = "UNKNOWN"; break; -+ }; pipetype;})); -+ DWC_PRINT(" Speed: %s\n", -+ ({char *speed; -+ switch (urb->dev->speed) { -+ case USB_SPEED_HIGH: speed = "HIGH"; break; -+ case USB_SPEED_FULL: speed = "FULL"; break; -+ case USB_SPEED_LOW: speed = "LOW"; break; -+ default: speed = "UNKNOWN"; break; -+ }; speed;})); -+ DWC_PRINT(" Max packet size: %d\n", -+ usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))); -+ DWC_PRINT(" Data buffer length: %d\n", urb->transfer_buffer_length); -+ DWC_PRINT(" Transfer buffer: %p, Transfer DMA: %p\n", -+ urb->transfer_buffer, (void *)urb->transfer_dma); -+ DWC_PRINT(" Setup buffer: %p, Setup DMA: %p\n", -+ urb->setup_packet, (void *)urb->setup_dma); -+ DWC_PRINT(" Interval: %d\n", urb->interval); -+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { -+ int i; -+ for (i = 0; i < urb->number_of_packets; i++) { -+ DWC_PRINT(" ISO Desc %d:\n", i); -+ DWC_PRINT(" offset: %d, length %d\n", -+ urb->iso_frame_desc[i].offset, -+ urb->iso_frame_desc[i].length); -+ } -+ } -+} -+ -+static void dump_channel_info(dwc_otg_hcd_t *hcd, -+ dwc_otg_qh_t *qh) -+{ -+ if (qh->channel != NULL) { -+ dwc_hc_t *hc = qh->channel; -+ struct list_head *item; -+ dwc_otg_qh_t *qh_item; -+ int num_channels = hcd->core_if->core_params->host_channels; -+ int i; -+ -+ dwc_otg_hc_regs_t *hc_regs; -+ hcchar_data_t hcchar; -+ hcsplt_data_t hcsplt; -+ hctsiz_data_t hctsiz; -+ uint32_t hcdma; -+ -+ hc_regs = hcd->core_if->host_if->hc_regs[hc->hc_num]; -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hcsplt.d32 = dwc_read_reg32(&hc_regs->hcsplt); -+ hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); -+ hcdma = dwc_read_reg32(&hc_regs->hcdma); -+ -+ DWC_PRINT(" Assigned to channel %p:\n", hc); -+ DWC_PRINT(" hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32, hcsplt.d32); -+ DWC_PRINT(" hctsiz 0x%08x, hcdma 0x%08x\n", hctsiz.d32, hcdma); -+ DWC_PRINT(" dev_addr: %d, ep_num: %d, ep_is_in: %d\n", -+ hc->dev_addr, hc->ep_num, hc->ep_is_in); -+ DWC_PRINT(" ep_type: %d\n", hc->ep_type); -+ DWC_PRINT(" max_packet: %d\n", hc->max_packet); -+ DWC_PRINT(" data_pid_start: %d\n", hc->data_pid_start); -+ DWC_PRINT(" xfer_started: %d\n", hc->xfer_started); -+ DWC_PRINT(" halt_status: %d\n", hc->halt_status); -+ DWC_PRINT(" xfer_buff: %p\n", hc->xfer_buff); -+ DWC_PRINT(" xfer_len: %d\n", hc->xfer_len); -+ DWC_PRINT(" qh: %p\n", hc->qh); -+ DWC_PRINT(" NP inactive sched:\n"); -+ list_for_each(item, &hcd->non_periodic_sched_inactive) { -+ qh_item = list_entry(item, dwc_otg_qh_t, qh_list_entry); -+ DWC_PRINT(" %p\n", qh_item); -+ } -+ DWC_PRINT(" NP active sched:\n"); -+ list_for_each(item, &hcd->non_periodic_sched_active) { -+ qh_item = list_entry(item, dwc_otg_qh_t, qh_list_entry); -+ DWC_PRINT(" %p\n", qh_item); -+ } -+ DWC_PRINT(" Channels: \n"); -+ for (i = 0; i < num_channels; i++) { -+ dwc_hc_t *hc = hcd->hc_ptr_array[i]; -+ DWC_PRINT(" %2d: %p\n", i, hc); -+ } -+ } -+} -+#endif -+ -+ -+//OTG host require the DMA addr is DWORD-aligned, -+//patch it if the buffer is not DWORD-aligned -+inline -+void hcd_check_and_patch_dma_addr(struct urb *urb){ -+ -+ if((!urb->transfer_buffer)||!urb->transfer_dma||urb->transfer_dma==0xffffffff) -+ return; -+ -+ if(((u32)urb->transfer_buffer)& 0x3){ -+ /* -+ printk("%s: " -+ "urb(%.8x) " -+ "transfer_buffer=%.8x, " -+ "transfer_dma=%.8x, " -+ "transfer_buffer_length=%d, " -+ "actual_length=%d(%x), " -+ "\n", -+ ((urb->transfer_flags & URB_DIR_MASK)==URB_DIR_OUT)?"OUT":"IN", -+ urb, -+ urb->transfer_buffer, -+ urb->transfer_dma, -+ urb->transfer_buffer_length, -+ urb->actual_length,urb->actual_length -+ ); -+ */ -+ if(!urb->aligned_transfer_buffer||urb->aligned_transfer_buffer_length<urb->transfer_buffer_length){ -+ urb->aligned_transfer_buffer_length=urb->transfer_buffer_length; -+ if(urb->aligned_transfer_buffer) { -+ kfree(urb->aligned_transfer_buffer); -+ } -+ urb->aligned_transfer_buffer=kmalloc(urb->aligned_transfer_buffer_length,GFP_KERNEL|GFP_DMA|GFP_ATOMIC); -+ urb->aligned_transfer_dma=dma_map_single(NULL,(void *)(urb->aligned_transfer_buffer),(urb->aligned_transfer_buffer_length),DMA_FROM_DEVICE); -+ if(!urb->aligned_transfer_buffer){ -+ DWC_ERROR("Cannot alloc required buffer!!\n"); -+ BUG(); -+ } -+ //printk(" new allocated aligned_buf=%.8x aligned_buf_len=%d\n", (u32)urb->aligned_transfer_buffer, urb->aligned_transfer_buffer_length); -+ } -+ urb->transfer_dma=urb->aligned_transfer_dma; -+ if((urb->transfer_flags & URB_DIR_MASK)==URB_DIR_OUT) { -+ memcpy(urb->aligned_transfer_buffer,urb->transfer_buffer,urb->transfer_buffer_length); -+ dma_sync_single_for_device(NULL,urb->transfer_dma,urb->transfer_buffer_length,DMA_TO_DEVICE); -+ } -+ } -+} -+ -+ -+ -+/** Starts processing a USB transfer request specified by a USB Request Block -+ * (URB). mem_flags indicates the type of memory allocation to use while -+ * processing this URB. */ -+int dwc_otg_hcd_urb_enqueue(struct usb_hcd *hcd, -+// struct usb_host_endpoint *ep, -+ struct urb *urb, -+ gfp_t mem_flags -+ ) -+{ -+ int retval = 0; -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ dwc_otg_qtd_t *qtd; -+ -+#ifdef DEBUG -+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { -+ dump_urb_info(urb, "dwc_otg_hcd_urb_enqueue"); -+ } -+#endif -+ if (!dwc_otg_hcd->flags.b.port_connect_status) { -+ /* No longer connected. */ -+ return -ENODEV; -+ } -+ -+ hcd_check_and_patch_dma_addr(urb); -+ qtd = dwc_otg_hcd_qtd_create(urb); -+ if (qtd == NULL) { -+ DWC_ERROR("DWC OTG HCD URB Enqueue failed creating QTD\n"); -+ return -ENOMEM; -+ } -+ -+ retval = dwc_otg_hcd_qtd_add(qtd, dwc_otg_hcd); -+ if (retval < 0) { -+ DWC_ERROR("DWC OTG HCD URB Enqueue failed adding QTD. " -+ "Error status %d\n", retval); -+ dwc_otg_hcd_qtd_free(qtd); -+ } -+ -+ return retval; -+} -+ -+/** Aborts/cancels a USB transfer request. Always returns 0 to indicate -+ * success. */ -+int dwc_otg_hcd_urb_dequeue(struct usb_hcd *hcd, -+ struct urb *urb, int status) -+{ -+ unsigned long flags; -+ dwc_otg_hcd_t *dwc_otg_hcd; -+ dwc_otg_qtd_t *urb_qtd; -+ dwc_otg_qh_t *qh; -+ struct usb_host_endpoint *ep = dwc_urb_to_endpoint(urb); -+ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue\n"); -+ -+ dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ -+ SPIN_LOCK_IRQSAVE(&dwc_otg_hcd->lock, flags); -+ -+ urb_qtd = (dwc_otg_qtd_t *)urb->hcpriv; -+ qh = (dwc_otg_qh_t *)ep->hcpriv; -+ -+ if (urb_qtd == NULL) { -+ SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); -+ return 0; -+ } -+#ifdef DEBUG -+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { -+ dump_urb_info(urb, "dwc_otg_hcd_urb_dequeue"); -+ if (urb_qtd == qh->qtd_in_process) { -+ dump_channel_info(dwc_otg_hcd, qh); -+ } -+ } -+#endif -+ -+ if (urb_qtd == qh->qtd_in_process) { -+ /* The QTD is in process (it has been assigned to a channel). */ -+ -+ if (dwc_otg_hcd->flags.b.port_connect_status) { -+ /* -+ * If still connected (i.e. in host mode), halt the -+ * channel so it can be used for other transfers. If -+ * no longer connected, the host registers can't be -+ * written to halt the channel since the core is in -+ * device mode. -+ */ -+ dwc_otg_hc_halt(dwc_otg_hcd->core_if, qh->channel, -+ DWC_OTG_HC_XFER_URB_DEQUEUE); -+ } -+ } -+ -+ /* -+ * Free the QTD and clean up the associated QH. Leave the QH in the -+ * schedule if it has any remaining QTDs. -+ */ -+ dwc_otg_hcd_qtd_remove_and_free(dwc_otg_hcd, urb_qtd); -+ if (urb_qtd == qh->qtd_in_process) { -+ /* Note that dwc_otg_hcd_qh_deactivate() locks the spin_lock again */ -+ SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); -+ dwc_otg_hcd_qh_deactivate(dwc_otg_hcd, qh, 0); -+ qh->channel = NULL; -+ qh->qtd_in_process = NULL; -+ } else { -+ if (list_empty(&qh->qtd_list)) -+ dwc_otg_hcd_qh_remove(dwc_otg_hcd, qh); -+ SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); -+ } -+ -+ urb->hcpriv = NULL; -+ -+ /* Higher layer software sets URB status. */ -+ usb_hcd_giveback_urb(hcd, urb, status); -+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { -+ DWC_PRINT("Called usb_hcd_giveback_urb()\n"); -+ DWC_PRINT(" urb->status = %d\n", urb->status); -+ } -+ -+ return 0; -+} -+ -+/** Frees resources in the DWC_otg controller related to a given endpoint. Also -+ * clears state in the HCD related to the endpoint. Any URBs for the endpoint -+ * must already be dequeued. */ -+void dwc_otg_hcd_endpoint_disable(struct usb_hcd *hcd, -+ struct usb_host_endpoint *ep) -+{ -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ dwc_otg_qh_t *qh; -+ -+ unsigned long flags; -+ int retry = 0; -+ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD EP DISABLE: _bEndpointAddress=0x%02x, " -+ "endpoint=%d\n", ep->desc.bEndpointAddress, -+ dwc_ep_addr_to_endpoint(ep->desc.bEndpointAddress)); -+ -+rescan: -+ SPIN_LOCK_IRQSAVE(&dwc_otg_hcd->lock, flags); -+ qh = (dwc_otg_qh_t *)(ep->hcpriv); -+ if (!qh) -+ goto done; -+ -+ /** Check that the QTD list is really empty */ -+ if (!list_empty(&qh->qtd_list)) { -+ if (retry++ < 250) { -+ SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); -+ schedule_timeout_uninterruptible(1); -+ goto rescan; -+ } -+ -+ DWC_WARN("DWC OTG HCD EP DISABLE:" -+ " QTD List for this endpoint is not empty\n"); -+ } -+ -+ dwc_otg_hcd_qh_remove_and_free(dwc_otg_hcd, qh); -+ ep->hcpriv = NULL; -+done: -+ SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); -+} -+ -+/** Handles host mode interrupts for the DWC_otg controller. Returns IRQ_NONE if -+ * there was no interrupt to handle. Returns IRQ_HANDLED if there was a valid -+ * interrupt. -+ * -+ * This function is called by the USB core when an interrupt occurs */ -+irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *hcd) -+{ -+ int retVal = 0; -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ retVal = dwc_otg_hcd_handle_intr(dwc_otg_hcd); -+ if (dwc_otg_hcd->flags.b.port_connect_status_change == 1) -+ usb_hcd_poll_rh_status(hcd); -+ return IRQ_RETVAL(retVal); -+} -+ -+/** Creates Status Change bitmap for the root hub and root port. The bitmap is -+ * returned in buf. Bit 0 is the status change indicator for the root hub. Bit 1 -+ * is the status change indicator for the single root port. Returns 1 if either -+ * change indicator is 1, otherwise returns 0. */ -+int dwc_otg_hcd_hub_status_data(struct usb_hcd *hcd, char *buf) -+{ -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ -+ buf[0] = 0; -+ buf[0] |= (dwc_otg_hcd->flags.b.port_connect_status_change || -+ dwc_otg_hcd->flags.b.port_reset_change || -+ dwc_otg_hcd->flags.b.port_enable_change || -+ dwc_otg_hcd->flags.b.port_suspend_change || -+ dwc_otg_hcd->flags.b.port_over_current_change) << 1; -+ -+#ifdef DEBUG -+ if (buf[0]) { -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB STATUS DATA:" -+ " Root port status changed\n"); -+ DWC_DEBUGPL(DBG_HCDV, " port_connect_status_change: %d\n", -+ dwc_otg_hcd->flags.b.port_connect_status_change); -+ DWC_DEBUGPL(DBG_HCDV, " port_reset_change: %d\n", -+ dwc_otg_hcd->flags.b.port_reset_change); -+ DWC_DEBUGPL(DBG_HCDV, " port_enable_change: %d\n", -+ dwc_otg_hcd->flags.b.port_enable_change); -+ DWC_DEBUGPL(DBG_HCDV, " port_suspend_change: %d\n", -+ dwc_otg_hcd->flags.b.port_suspend_change); -+ DWC_DEBUGPL(DBG_HCDV, " port_over_current_change: %d\n", -+ dwc_otg_hcd->flags.b.port_over_current_change); -+ } -+#endif -+ return (buf[0] != 0); -+} -+ -+#ifdef DWC_HS_ELECT_TST -+/* -+ * Quick and dirty hack to implement the HS Electrical Test -+ * SINGLE_STEP_GET_DEVICE_DESCRIPTOR feature. -+ * -+ * This code was copied from our userspace app "hset". It sends a -+ * Get Device Descriptor control sequence in two parts, first the -+ * Setup packet by itself, followed some time later by the In and -+ * Ack packets. Rather than trying to figure out how to add this -+ * functionality to the normal driver code, we just hijack the -+ * hardware, using these two function to drive the hardware -+ * directly. -+ */ -+ -+dwc_otg_core_global_regs_t *global_regs; -+dwc_otg_host_global_regs_t *hc_global_regs; -+dwc_otg_hc_regs_t *hc_regs; -+uint32_t *data_fifo; -+ -+static void do_setup(void) -+{ -+ gintsts_data_t gintsts; -+ hctsiz_data_t hctsiz; -+ hcchar_data_t hcchar; -+ haint_data_t haint; -+ hcint_data_t hcint; -+ -+ /* Enable HAINTs */ -+ dwc_write_reg32(&hc_global_regs->haintmsk, 0x0001); -+ -+ /* Enable HCINTs */ -+ dwc_write_reg32(&hc_regs->hcintmsk, 0x04a3); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+ -+ /* Read HAINT */ -+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint); -+ //fprintf(stderr, "HAINT: %08x\n", haint.d32); -+ -+ /* Read HCINT */ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32); -+ -+ /* Read HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); -+ -+ /* Clear HCINT */ -+ dwc_write_reg32(&hc_regs->hcint, hcint.d32); -+ -+ /* Clear HAINT */ -+ dwc_write_reg32(&hc_global_regs->haint, haint.d32); -+ -+ /* Clear GINTSTS */ -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+ -+ /* -+ * Send Setup packet (Get Device Descriptor) -+ */ -+ -+ /* Make sure channel is disabled */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ if (hcchar.b.chen) { -+ //fprintf(stderr, "Channel already enabled 1, HCCHAR = %08x\n", hcchar.d32); -+ hcchar.b.chdis = 1; -+// hcchar.b.chen = 1; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ //sleep(1); -+ mdelay(1000); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+ -+ /* Read HAINT */ -+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint); -+ //fprintf(stderr, "HAINT: %08x\n", haint.d32); -+ -+ /* Read HCINT */ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32); -+ -+ /* Read HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); -+ -+ /* Clear HCINT */ -+ dwc_write_reg32(&hc_regs->hcint, hcint.d32); -+ -+ /* Clear HAINT */ -+ dwc_write_reg32(&hc_global_regs->haint, haint.d32); -+ -+ /* Clear GINTSTS */ -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //if (hcchar.b.chen) { -+ // fprintf(stderr, "** Channel _still_ enabled 1, HCCHAR = %08x **\n", hcchar.d32); -+ //} -+ } -+ -+ /* Set HCTSIZ */ -+ hctsiz.d32 = 0; -+ hctsiz.b.xfersize = 8; -+ hctsiz.b.pktcnt = 1; -+ hctsiz.b.pid = DWC_OTG_HC_PID_SETUP; -+ dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); -+ -+ /* Set HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL; -+ hcchar.b.epdir = 0; -+ hcchar.b.epnum = 0; -+ hcchar.b.mps = 8; -+ hcchar.b.chen = 1; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ -+ /* Fill FIFO with Setup data for Get Device Descriptor */ -+ data_fifo = (uint32_t *)((char *)global_regs + 0x1000); -+ dwc_write_reg32(data_fifo++, 0x01000680); -+ dwc_write_reg32(data_fifo++, 0x00080000); -+ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "Waiting for HCINTR intr 1, GINTSTS = %08x\n", gintsts.d32); -+ -+ /* Wait for host channel interrupt */ -+ do { -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ } while (gintsts.b.hcintr == 0); -+ -+ //fprintf(stderr, "Got HCINTR intr 1, GINTSTS = %08x\n", gintsts.d32); -+ -+ /* Disable HCINTs */ -+ dwc_write_reg32(&hc_regs->hcintmsk, 0x0000); -+ -+ /* Disable HAINTs */ -+ dwc_write_reg32(&hc_global_regs->haintmsk, 0x0000); -+ -+ /* Read HAINT */ -+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint); -+ //fprintf(stderr, "HAINT: %08x\n", haint.d32); -+ -+ /* Read HCINT */ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32); -+ -+ /* Read HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); -+ -+ /* Clear HCINT */ -+ dwc_write_reg32(&hc_regs->hcint, hcint.d32); -+ -+ /* Clear HAINT */ -+ dwc_write_reg32(&hc_global_regs->haint, haint.d32); -+ -+ /* Clear GINTSTS */ -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+} -+ -+static void do_in_ack(void) -+{ -+ gintsts_data_t gintsts; -+ hctsiz_data_t hctsiz; -+ hcchar_data_t hcchar; -+ haint_data_t haint; -+ hcint_data_t hcint; -+ host_grxsts_data_t grxsts; -+ -+ /* Enable HAINTs */ -+ dwc_write_reg32(&hc_global_regs->haintmsk, 0x0001); -+ -+ /* Enable HCINTs */ -+ dwc_write_reg32(&hc_regs->hcintmsk, 0x04a3); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+ -+ /* Read HAINT */ -+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint); -+ //fprintf(stderr, "HAINT: %08x\n", haint.d32); -+ -+ /* Read HCINT */ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32); -+ -+ /* Read HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); -+ -+ /* Clear HCINT */ -+ dwc_write_reg32(&hc_regs->hcint, hcint.d32); -+ -+ /* Clear HAINT */ -+ dwc_write_reg32(&hc_global_regs->haint, haint.d32); -+ -+ /* Clear GINTSTS */ -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+ -+ /* -+ * Receive Control In packet -+ */ -+ -+ /* Make sure channel is disabled */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ if (hcchar.b.chen) { -+ //fprintf(stderr, "Channel already enabled 2, HCCHAR = %08x\n", hcchar.d32); -+ hcchar.b.chdis = 1; -+ hcchar.b.chen = 1; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ //sleep(1); -+ mdelay(1000); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+ -+ /* Read HAINT */ -+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint); -+ //fprintf(stderr, "HAINT: %08x\n", haint.d32); -+ -+ /* Read HCINT */ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32); -+ -+ /* Read HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); -+ -+ /* Clear HCINT */ -+ dwc_write_reg32(&hc_regs->hcint, hcint.d32); -+ -+ /* Clear HAINT */ -+ dwc_write_reg32(&hc_global_regs->haint, haint.d32); -+ -+ /* Clear GINTSTS */ -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //if (hcchar.b.chen) { -+ // fprintf(stderr, "** Channel _still_ enabled 2, HCCHAR = %08x **\n", hcchar.d32); -+ //} -+ } -+ -+ /* Set HCTSIZ */ -+ hctsiz.d32 = 0; -+ hctsiz.b.xfersize = 8; -+ hctsiz.b.pktcnt = 1; -+ hctsiz.b.pid = DWC_OTG_HC_PID_DATA1; -+ dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); -+ -+ /* Set HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL; -+ hcchar.b.epdir = 1; -+ hcchar.b.epnum = 0; -+ hcchar.b.mps = 8; -+ hcchar.b.chen = 1; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "Waiting for RXSTSQLVL intr 1, GINTSTS = %08x\n", gintsts.d32); -+ -+ /* Wait for receive status queue interrupt */ -+ do { -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ } while (gintsts.b.rxstsqlvl == 0); -+ -+ //fprintf(stderr, "Got RXSTSQLVL intr 1, GINTSTS = %08x\n", gintsts.d32); -+ -+ /* Read RXSTS */ -+ grxsts.d32 = dwc_read_reg32(&global_regs->grxstsp); -+ //fprintf(stderr, "GRXSTS: %08x\n", grxsts.d32); -+ -+ /* Clear RXSTSQLVL in GINTSTS */ -+ gintsts.d32 = 0; -+ gintsts.b.rxstsqlvl = 1; -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ switch (grxsts.b.pktsts) { -+ case DWC_GRXSTS_PKTSTS_IN: -+ /* Read the data into the host buffer */ -+ if (grxsts.b.bcnt > 0) { -+ int i; -+ int word_count = (grxsts.b.bcnt + 3) / 4; -+ -+ data_fifo = (uint32_t *)((char *)global_regs + 0x1000); -+ -+ for (i = 0; i < word_count; i++) { -+ (void)dwc_read_reg32(data_fifo++); -+ } -+ } -+ -+ //fprintf(stderr, "Received %u bytes\n", (unsigned)grxsts.b.bcnt); -+ break; -+ -+ default: -+ //fprintf(stderr, "** Unexpected GRXSTS packet status 1 **\n"); -+ break; -+ } -+ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "Waiting for RXSTSQLVL intr 2, GINTSTS = %08x\n", gintsts.d32); -+ -+ /* Wait for receive status queue interrupt */ -+ do { -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ } while (gintsts.b.rxstsqlvl == 0); -+ -+ //fprintf(stderr, "Got RXSTSQLVL intr 2, GINTSTS = %08x\n", gintsts.d32); -+ -+ /* Read RXSTS */ -+ grxsts.d32 = dwc_read_reg32(&global_regs->grxstsp); -+ //fprintf(stderr, "GRXSTS: %08x\n", grxsts.d32); -+ -+ /* Clear RXSTSQLVL in GINTSTS */ -+ gintsts.d32 = 0; -+ gintsts.b.rxstsqlvl = 1; -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ switch (grxsts.b.pktsts) { -+ case DWC_GRXSTS_PKTSTS_IN_XFER_COMP: -+ break; -+ -+ default: -+ //fprintf(stderr, "** Unexpected GRXSTS packet status 2 **\n"); -+ break; -+ } -+ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "Waiting for HCINTR intr 2, GINTSTS = %08x\n", gintsts.d32); -+ -+ /* Wait for host channel interrupt */ -+ do { -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ } while (gintsts.b.hcintr == 0); -+ -+ //fprintf(stderr, "Got HCINTR intr 2, GINTSTS = %08x\n", gintsts.d32); -+ -+ /* Read HAINT */ -+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint); -+ //fprintf(stderr, "HAINT: %08x\n", haint.d32); -+ -+ /* Read HCINT */ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32); -+ -+ /* Read HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); -+ -+ /* Clear HCINT */ -+ dwc_write_reg32(&hc_regs->hcint, hcint.d32); -+ -+ /* Clear HAINT */ -+ dwc_write_reg32(&hc_global_regs->haint, haint.d32); -+ -+ /* Clear GINTSTS */ -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+ -+// usleep(100000); -+// mdelay(100); -+ mdelay(1); -+ -+ /* -+ * Send handshake packet -+ */ -+ -+ /* Read HAINT */ -+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint); -+ //fprintf(stderr, "HAINT: %08x\n", haint.d32); -+ -+ /* Read HCINT */ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32); -+ -+ /* Read HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); -+ -+ /* Clear HCINT */ -+ dwc_write_reg32(&hc_regs->hcint, hcint.d32); -+ -+ /* Clear HAINT */ -+ dwc_write_reg32(&hc_global_regs->haint, haint.d32); -+ -+ /* Clear GINTSTS */ -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+ -+ /* Make sure channel is disabled */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ if (hcchar.b.chen) { -+ //fprintf(stderr, "Channel already enabled 3, HCCHAR = %08x\n", hcchar.d32); -+ hcchar.b.chdis = 1; -+ hcchar.b.chen = 1; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ //sleep(1); -+ mdelay(1000); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+ -+ /* Read HAINT */ -+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint); -+ //fprintf(stderr, "HAINT: %08x\n", haint.d32); -+ -+ /* Read HCINT */ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32); -+ -+ /* Read HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); -+ -+ /* Clear HCINT */ -+ dwc_write_reg32(&hc_regs->hcint, hcint.d32); -+ -+ /* Clear HAINT */ -+ dwc_write_reg32(&hc_global_regs->haint, haint.d32); -+ -+ /* Clear GINTSTS */ -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //if (hcchar.b.chen) { -+ // fprintf(stderr, "** Channel _still_ enabled 3, HCCHAR = %08x **\n", hcchar.d32); -+ //} -+ } -+ -+ /* Set HCTSIZ */ -+ hctsiz.d32 = 0; -+ hctsiz.b.xfersize = 0; -+ hctsiz.b.pktcnt = 1; -+ hctsiz.b.pid = DWC_OTG_HC_PID_DATA1; -+ dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); -+ -+ /* Set HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL; -+ hcchar.b.epdir = 0; -+ hcchar.b.epnum = 0; -+ hcchar.b.mps = 8; -+ hcchar.b.chen = 1; -+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -+ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "Waiting for HCINTR intr 3, GINTSTS = %08x\n", gintsts.d32); -+ -+ /* Wait for host channel interrupt */ -+ do { -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ } while (gintsts.b.hcintr == 0); -+ -+ //fprintf(stderr, "Got HCINTR intr 3, GINTSTS = %08x\n", gintsts.d32); -+ -+ /* Disable HCINTs */ -+ dwc_write_reg32(&hc_regs->hcintmsk, 0x0000); -+ -+ /* Disable HAINTs */ -+ dwc_write_reg32(&hc_global_regs->haintmsk, 0x0000); -+ -+ /* Read HAINT */ -+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint); -+ //fprintf(stderr, "HAINT: %08x\n", haint.d32); -+ -+ /* Read HCINT */ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32); -+ -+ /* Read HCCHAR */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32); -+ -+ /* Clear HCINT */ -+ dwc_write_reg32(&hc_regs->hcint, hcint.d32); -+ -+ /* Clear HAINT */ -+ dwc_write_reg32(&hc_global_regs->haint, haint.d32); -+ -+ /* Clear GINTSTS */ -+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32); -+ -+ /* Read GINTSTS */ -+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts); -+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32); -+} -+#endif /* DWC_HS_ELECT_TST */ -+ -+/** Handles hub class-specific requests. */ -+int dwc_otg_hcd_hub_control(struct usb_hcd *hcd, -+ u16 typeReq, -+ u16 wValue, -+ u16 wIndex, -+ char *buf, -+ u16 wLength) -+{ -+ int retval = 0; -+ -+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); -+ dwc_otg_core_if_t *core_if = hcd_to_dwc_otg_hcd(hcd)->core_if; -+ struct usb_hub_descriptor *desc; -+ hprt0_data_t hprt0 = {.d32 = 0}; -+ -+ uint32_t port_status; -+ -+ switch (typeReq) { -+ case ClearHubFeature: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "ClearHubFeature 0x%x\n", wValue); -+ switch (wValue) { -+ case C_HUB_LOCAL_POWER: -+ case C_HUB_OVER_CURRENT: -+ /* Nothing required here */ -+ break; -+ default: -+ retval = -EINVAL; -+ DWC_ERROR("DWC OTG HCD - " -+ "ClearHubFeature request %xh unknown\n", wValue); -+ } -+ break; -+ case ClearPortFeature: -+ if (!wIndex || wIndex > 1) -+ goto error; -+ -+ switch (wValue) { -+ case USB_PORT_FEAT_ENABLE: -+ DWC_DEBUGPL(DBG_ANY, "DWC OTG HCD HUB CONTROL - " -+ "ClearPortFeature USB_PORT_FEAT_ENABLE\n"); -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prtena = 1; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ break; -+ case USB_PORT_FEAT_SUSPEND: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "ClearPortFeature USB_PORT_FEAT_SUSPEND\n"); -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prtres = 1; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ /* Clear Resume bit */ -+ mdelay(100); -+ hprt0.b.prtres = 0; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ break; -+ case USB_PORT_FEAT_POWER: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "ClearPortFeature USB_PORT_FEAT_POWER\n"); -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prtpwr = 0; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ break; -+ case USB_PORT_FEAT_INDICATOR: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "ClearPortFeature USB_PORT_FEAT_INDICATOR\n"); -+ /* Port inidicator not supported */ -+ break; -+ case USB_PORT_FEAT_C_CONNECTION: -+ /* Clears drivers internal connect status change -+ * flag */ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "ClearPortFeature USB_PORT_FEAT_C_CONNECTION\n"); -+ dwc_otg_hcd->flags.b.port_connect_status_change = 0; -+ break; -+ case USB_PORT_FEAT_C_RESET: -+ /* Clears the driver's internal Port Reset Change -+ * flag */ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "ClearPortFeature USB_PORT_FEAT_C_RESET\n"); -+ dwc_otg_hcd->flags.b.port_reset_change = 0; -+ break; -+ case USB_PORT_FEAT_C_ENABLE: -+ /* Clears the driver's internal Port -+ * Enable/Disable Change flag */ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "ClearPortFeature USB_PORT_FEAT_C_ENABLE\n"); -+ dwc_otg_hcd->flags.b.port_enable_change = 0; -+ break; -+ case USB_PORT_FEAT_C_SUSPEND: -+ /* Clears the driver's internal Port Suspend -+ * Change flag, which is set when resume signaling on -+ * the host port is complete */ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "ClearPortFeature USB_PORT_FEAT_C_SUSPEND\n"); -+ dwc_otg_hcd->flags.b.port_suspend_change = 0; -+ break; -+ case USB_PORT_FEAT_C_OVER_CURRENT: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "ClearPortFeature USB_PORT_FEAT_C_OVER_CURRENT\n"); -+ dwc_otg_hcd->flags.b.port_over_current_change = 0; -+ break; -+ default: -+ retval = -EINVAL; -+ DWC_ERROR("DWC OTG HCD - " -+ "ClearPortFeature request %xh " -+ "unknown or unsupported\n", wValue); -+ } -+ break; -+ case GetHubDescriptor: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "GetHubDescriptor\n"); -+ desc = (struct usb_hub_descriptor *)buf; -+ desc->bDescLength = 9; -+ desc->bDescriptorType = 0x29; -+ desc->bNbrPorts = 1; -+ desc->wHubCharacteristics = 0x08; -+ desc->bPwrOn2PwrGood = 1; -+ desc->bHubContrCurrent = 0; -+ desc->u.hs.DeviceRemovable[0] = 0; -+ desc->u.hs.DeviceRemovable[1] = 0xff; -+ break; -+ case GetHubStatus: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "GetHubStatus\n"); -+ memset(buf, 0, 4); -+ break; -+ case GetPortStatus: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "GetPortStatus\n"); -+ -+ if (!wIndex || wIndex > 1) -+ goto error; -+ -+ port_status = 0; -+ -+ if (dwc_otg_hcd->flags.b.port_connect_status_change) -+ port_status |= (1 << USB_PORT_FEAT_C_CONNECTION); -+ -+ if (dwc_otg_hcd->flags.b.port_enable_change) -+ port_status |= (1 << USB_PORT_FEAT_C_ENABLE); -+ -+ if (dwc_otg_hcd->flags.b.port_suspend_change) -+ port_status |= (1 << USB_PORT_FEAT_C_SUSPEND); -+ -+ if (dwc_otg_hcd->flags.b.port_reset_change) -+ port_status |= (1 << USB_PORT_FEAT_C_RESET); -+ -+ if (dwc_otg_hcd->flags.b.port_over_current_change) { -+ DWC_ERROR("Device Not Supported\n"); -+ port_status |= (1 << USB_PORT_FEAT_C_OVER_CURRENT); -+ } -+ -+ if (!dwc_otg_hcd->flags.b.port_connect_status) { -+ /* -+ * The port is disconnected, which means the core is -+ * either in device mode or it soon will be. Just -+ * return 0's for the remainder of the port status -+ * since the port register can't be read if the core -+ * is in device mode. -+ */ -+ *((__le32 *) buf) = cpu_to_le32(port_status); -+ break; -+ } -+ -+ hprt0.d32 = dwc_read_reg32(core_if->host_if->hprt0); -+ DWC_DEBUGPL(DBG_HCDV, " HPRT0: 0x%08x\n", hprt0.d32); -+ -+ if (hprt0.b.prtconnsts) -+ port_status |= (1 << USB_PORT_FEAT_CONNECTION); -+ -+ if (hprt0.b.prtena) -+ port_status |= (1 << USB_PORT_FEAT_ENABLE); -+ -+ if (hprt0.b.prtsusp) -+ port_status |= (1 << USB_PORT_FEAT_SUSPEND); -+ -+ if (hprt0.b.prtovrcurract) -+ port_status |= (1 << USB_PORT_FEAT_OVER_CURRENT); -+ -+ if (hprt0.b.prtrst) -+ port_status |= (1 << USB_PORT_FEAT_RESET); -+ -+ if (hprt0.b.prtpwr) -+ port_status |= (1 << USB_PORT_FEAT_POWER); -+ -+ if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) -+ port_status |= (USB_PORT_STAT_HIGH_SPEED); -+ else if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED) -+ port_status |= (USB_PORT_STAT_LOW_SPEED); -+ -+ if (hprt0.b.prttstctl) -+ port_status |= (1 << USB_PORT_FEAT_TEST); -+ -+ /* USB_PORT_FEAT_INDICATOR unsupported always 0 */ -+ -+ *((__le32 *) buf) = cpu_to_le32(port_status); -+ -+ break; -+ case SetHubFeature: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "SetHubFeature\n"); -+ /* No HUB features supported */ -+ break; -+ case SetPortFeature: -+ if (wValue != USB_PORT_FEAT_TEST && (!wIndex || wIndex > 1)) -+ goto error; -+ -+ if (!dwc_otg_hcd->flags.b.port_connect_status) { -+ /* -+ * The port is disconnected, which means the core is -+ * either in device mode or it soon will be. Just -+ * return without doing anything since the port -+ * register can't be written if the core is in device -+ * mode. -+ */ -+ break; -+ } -+ -+ switch (wValue) { -+ case USB_PORT_FEAT_SUSPEND: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "SetPortFeature - USB_PORT_FEAT_SUSPEND\n"); -+ if (hcd->self.otg_port == wIndex && -+ hcd->self.b_hnp_enable) { -+ gotgctl_data_t gotgctl = {.d32=0}; -+ gotgctl.b.hstsethnpen = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gotgctl, -+ 0, gotgctl.d32); -+ core_if->op_state = A_SUSPEND; -+ } -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prtsusp = 1; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ //DWC_PRINT("SUSPEND: HPRT0=%0x\n", hprt0.d32); -+ /* Suspend the Phy Clock */ -+ { -+ pcgcctl_data_t pcgcctl = {.d32=0}; -+ pcgcctl.b.stoppclk = 1; -+ dwc_write_reg32(core_if->pcgcctl, pcgcctl.d32); -+ } -+ -+ /* For HNP the bus must be suspended for at least 200ms. */ -+ if (hcd->self.b_hnp_enable) { -+ mdelay(200); -+ //DWC_PRINT("SUSPEND: wait complete! (%d)\n", _hcd->state); -+ } -+ break; -+ case USB_PORT_FEAT_POWER: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "SetPortFeature - USB_PORT_FEAT_POWER\n"); -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prtpwr = 1; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ break; -+ case USB_PORT_FEAT_RESET: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "SetPortFeature - USB_PORT_FEAT_RESET\n"); -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ /* When B-Host the Port reset bit is set in -+ * the Start HCD Callback function, so that -+ * the reset is started within 1ms of the HNP -+ * success interrupt. */ -+ if (!hcd->self.is_b_host) { -+ hprt0.b.prtrst = 1; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ } -+ /* Clear reset bit in 10ms (FS/LS) or 50ms (HS) */ -+ MDELAY(60); -+ hprt0.b.prtrst = 0; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ break; -+ -+#ifdef DWC_HS_ELECT_TST -+ case USB_PORT_FEAT_TEST: -+ { -+ uint32_t t; -+ gintmsk_data_t gintmsk; -+ -+ t = (wIndex >> 8); /* MSB wIndex USB */ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "SetPortFeature - USB_PORT_FEAT_TEST %d\n", t); -+ warn("USB_PORT_FEAT_TEST %d\n", t); -+ if (t < 6) { -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prttstctl = t; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ } else { -+ /* Setup global vars with reg addresses (quick and -+ * dirty hack, should be cleaned up) -+ */ -+ global_regs = core_if->core_global_regs; -+ hc_global_regs = core_if->host_if->host_global_regs; -+ hc_regs = (dwc_otg_hc_regs_t *)((char *)global_regs + 0x500); -+ data_fifo = (uint32_t *)((char *)global_regs + 0x1000); -+ -+ if (t == 6) { /* HS_HOST_PORT_SUSPEND_RESUME */ -+ /* Save current interrupt mask */ -+ gintmsk.d32 = dwc_read_reg32(&global_regs->gintmsk); -+ -+ /* Disable all interrupts while we muck with -+ * the hardware directly -+ */ -+ dwc_write_reg32(&global_regs->gintmsk, 0); -+ -+ /* 15 second delay per the test spec */ -+ mdelay(15000); -+ -+ /* Drive suspend on the root port */ -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prtsusp = 1; -+ hprt0.b.prtres = 0; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ -+ /* 15 second delay per the test spec */ -+ mdelay(15000); -+ -+ /* Drive resume on the root port */ -+ hprt0.d32 = dwc_otg_read_hprt0(core_if); -+ hprt0.b.prtsusp = 0; -+ hprt0.b.prtres = 1; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ mdelay(100); -+ -+ /* Clear the resume bit */ -+ hprt0.b.prtres = 0; -+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32); -+ -+ /* Restore interrupts */ -+ dwc_write_reg32(&global_regs->gintmsk, gintmsk.d32); -+ } else if (t == 7) { /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR setup */ -+ /* Save current interrupt mask */ -+ gintmsk.d32 = dwc_read_reg32(&global_regs->gintmsk); -+ -+ /* Disable all interrupts while we muck with -+ * the hardware directly -+ */ -+ dwc_write_reg32(&global_regs->gintmsk, 0); -+ -+ /* 15 second delay per the test spec */ -+ mdelay(15000); -+ -+ /* Send the Setup packet */ -+ do_setup(); -+ -+ /* 15 second delay so nothing else happens for awhile */ -+ mdelay(15000); -+ -+ /* Restore interrupts */ -+ dwc_write_reg32(&global_regs->gintmsk, gintmsk.d32); -+ } else if (t == 8) { /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR execute */ -+ /* Save current interrupt mask */ -+ gintmsk.d32 = dwc_read_reg32(&global_regs->gintmsk); -+ -+ /* Disable all interrupts while we muck with -+ * the hardware directly -+ */ -+ dwc_write_reg32(&global_regs->gintmsk, 0); -+ -+ /* Send the Setup packet */ -+ do_setup(); -+ -+ /* 15 second delay so nothing else happens for awhile */ -+ mdelay(15000); -+ -+ /* Send the In and Ack packets */ -+ do_in_ack(); -+ -+ /* 15 second delay so nothing else happens for awhile */ -+ mdelay(15000); -+ -+ /* Restore interrupts */ -+ dwc_write_reg32(&global_regs->gintmsk, gintmsk.d32); -+ } -+ } -+ break; -+ } -+#endif /* DWC_HS_ELECT_TST */ -+ -+ case USB_PORT_FEAT_INDICATOR: -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " -+ "SetPortFeature - USB_PORT_FEAT_INDICATOR\n"); -+ /* Not supported */ -+ break; -+ default: -+ retval = -EINVAL; -+ DWC_ERROR("DWC OTG HCD - " -+ "SetPortFeature request %xh " -+ "unknown or unsupported\n", wValue); -+ break; -+ } -+ break; -+ default: -+ error: -+ retval = -EINVAL; -+ DWC_WARN("DWC OTG HCD - " -+ "Unknown hub control request type or invalid typeReq: %xh wIndex: %xh wValue: %xh\n", -+ typeReq, wIndex, wValue); -+ break; -+ } -+ -+ return retval; -+} -+ -+/** -+ * Assigns transactions from a QTD to a free host channel and initializes the -+ * host channel to perform the transactions. The host channel is removed from -+ * the free list. -+ * -+ * @param hcd The HCD state structure. -+ * @param qh Transactions from the first QTD for this QH are selected and -+ * assigned to a free host channel. -+ */ -+static void assign_and_init_hc(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) -+{ -+ dwc_hc_t *hc; -+ dwc_otg_qtd_t *qtd; -+ struct urb *urb; -+ -+ DWC_DEBUGPL(DBG_HCDV, "%s(%p,%p)\n", __func__, hcd, qh); -+ -+ hc = list_entry(hcd->free_hc_list.next, dwc_hc_t, hc_list_entry); -+ -+ /* Remove the host channel from the free list. */ -+ list_del_init(&hc->hc_list_entry); -+ -+ qtd = list_entry(qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); -+ urb = qtd->urb; -+ qh->channel = hc; -+ qh->qtd_in_process = qtd; -+ -+ /* -+ * Use usb_pipedevice to determine device address. This address is -+ * 0 before the SET_ADDRESS command and the correct address afterward. -+ */ -+ hc->dev_addr = usb_pipedevice(urb->pipe); -+ hc->ep_num = usb_pipeendpoint(urb->pipe); -+ -+ if (urb->dev->speed == USB_SPEED_LOW) { -+ hc->speed = DWC_OTG_EP_SPEED_LOW; -+ } else if (urb->dev->speed == USB_SPEED_FULL) { -+ hc->speed = DWC_OTG_EP_SPEED_FULL; -+ } else { -+ hc->speed = DWC_OTG_EP_SPEED_HIGH; -+ } -+ -+ hc->max_packet = dwc_max_packet(qh->maxp); -+ -+ hc->xfer_started = 0; -+ hc->halt_status = DWC_OTG_HC_XFER_NO_HALT_STATUS; -+ hc->error_state = (qtd->error_count > 0); -+ hc->halt_on_queue = 0; -+ hc->halt_pending = 0; -+ hc->requests = 0; -+ -+ /* -+ * The following values may be modified in the transfer type section -+ * below. The xfer_len value may be reduced when the transfer is -+ * started to accommodate the max widths of the XferSize and PktCnt -+ * fields in the HCTSIZn register. -+ */ -+ hc->do_ping = qh->ping_state; -+ hc->ep_is_in = (usb_pipein(urb->pipe) != 0); -+ hc->data_pid_start = qh->data_toggle; -+ hc->multi_count = 1; -+ -+ if (hcd->core_if->dma_enable) { -+ hc->xfer_buff = (uint8_t *)urb->transfer_dma + urb->actual_length; -+ } else { -+ hc->xfer_buff = (uint8_t *)urb->transfer_buffer + urb->actual_length; -+ } -+ hc->xfer_len = urb->transfer_buffer_length - urb->actual_length; -+ hc->xfer_count = 0; -+ -+ /* -+ * Set the split attributes -+ */ -+ hc->do_split = 0; -+ if (qh->do_split) { -+ hc->do_split = 1; -+ hc->xact_pos = qtd->isoc_split_pos; -+ hc->complete_split = qtd->complete_split; -+ hc->hub_addr = urb->dev->tt->hub->devnum; -+ hc->port_addr = urb->dev->ttport; -+ } -+ -+ switch (usb_pipetype(urb->pipe)) { -+ case PIPE_CONTROL: -+ hc->ep_type = DWC_OTG_EP_TYPE_CONTROL; -+ switch (qtd->control_phase) { -+ case DWC_OTG_CONTROL_SETUP: -+ DWC_DEBUGPL(DBG_HCDV, " Control setup transaction\n"); -+ hc->do_ping = 0; -+ hc->ep_is_in = 0; -+ hc->data_pid_start = DWC_OTG_HC_PID_SETUP; -+ if (hcd->core_if->dma_enable) { -+ hc->xfer_buff = (uint8_t *)urb->setup_dma; -+ } else { -+ hc->xfer_buff = (uint8_t *)urb->setup_packet; -+ } -+ hc->xfer_len = 8; -+ break; -+ case DWC_OTG_CONTROL_DATA: -+ DWC_DEBUGPL(DBG_HCDV, " Control data transaction\n"); -+ hc->data_pid_start = qtd->data_toggle; -+ break; -+ case DWC_OTG_CONTROL_STATUS: -+ /* -+ * Direction is opposite of data direction or IN if no -+ * data. -+ */ -+ DWC_DEBUGPL(DBG_HCDV, " Control status transaction\n"); -+ if (urb->transfer_buffer_length == 0) { -+ hc->ep_is_in = 1; -+ } else { -+ hc->ep_is_in = (usb_pipein(urb->pipe) != USB_DIR_IN); -+ } -+ if (hc->ep_is_in) { -+ hc->do_ping = 0; -+ } -+ hc->data_pid_start = DWC_OTG_HC_PID_DATA1; -+ hc->xfer_len = 0; -+ if (hcd->core_if->dma_enable) { -+ hc->xfer_buff = (uint8_t *)hcd->status_buf_dma; -+ } else { -+ hc->xfer_buff = (uint8_t *)hcd->status_buf; -+ } -+ break; -+ } -+ break; -+ case PIPE_BULK: -+ hc->ep_type = DWC_OTG_EP_TYPE_BULK; -+ break; -+ case PIPE_INTERRUPT: -+ hc->ep_type = DWC_OTG_EP_TYPE_INTR; -+ break; -+ case PIPE_ISOCHRONOUS: -+ { -+ struct usb_iso_packet_descriptor *frame_desc; -+ frame_desc = &urb->iso_frame_desc[qtd->isoc_frame_index]; -+ hc->ep_type = DWC_OTG_EP_TYPE_ISOC; -+ if (hcd->core_if->dma_enable) { -+ hc->xfer_buff = (uint8_t *)urb->transfer_dma; -+ } else { -+ hc->xfer_buff = (uint8_t *)urb->transfer_buffer; -+ } -+ hc->xfer_buff += frame_desc->offset + qtd->isoc_split_offset; -+ hc->xfer_len = frame_desc->length - qtd->isoc_split_offset; -+ -+ if (hc->xact_pos == DWC_HCSPLIT_XACTPOS_ALL) { -+ if (hc->xfer_len <= 188) { -+ hc->xact_pos = DWC_HCSPLIT_XACTPOS_ALL; -+ } -+ else { -+ hc->xact_pos = DWC_HCSPLIT_XACTPOS_BEGIN; -+ } -+ } -+ } -+ break; -+ } -+ -+ if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || -+ hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { -+ /* -+ * This value may be modified when the transfer is started to -+ * reflect the actual transfer length. -+ */ -+ hc->multi_count = dwc_hb_mult(qh->maxp); -+ } -+ -+ dwc_otg_hc_init(hcd->core_if, hc); -+ hc->qh = qh; -+} -+ -+/** -+ * This function selects transactions from the HCD transfer schedule and -+ * assigns them to available host channels. It is called from HCD interrupt -+ * handler functions. -+ * -+ * @param hcd The HCD state structure. -+ * -+ * @return The types of new transactions that were assigned to host channels. -+ */ -+dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t *hcd) -+{ -+ struct list_head *qh_ptr; -+ dwc_otg_qh_t *qh; -+ int num_channels; -+ dwc_otg_transaction_type_e ret_val = DWC_OTG_TRANSACTION_NONE; -+ -+#ifdef DEBUG_SOF -+ DWC_DEBUGPL(DBG_HCD, " Select Transactions\n"); -+#endif -+ -+ spin_lock(&hcd->lock); -+ /* Process entries in the periodic ready list. */ -+ qh_ptr = hcd->periodic_sched_ready.next; -+ while (qh_ptr != &hcd->periodic_sched_ready && -+ !list_empty(&hcd->free_hc_list)) { -+ -+ qh = list_entry(qh_ptr, dwc_otg_qh_t, qh_list_entry); -+ assign_and_init_hc(hcd, qh); -+ -+ /* -+ * Move the QH from the periodic ready schedule to the -+ * periodic assigned schedule. -+ */ -+ qh_ptr = qh_ptr->next; -+ list_move(&qh->qh_list_entry, &hcd->periodic_sched_assigned); -+ -+ ret_val = DWC_OTG_TRANSACTION_PERIODIC; -+ } -+ -+ /* -+ * Process entries in the inactive portion of the non-periodic -+ * schedule. Some free host channels may not be used if they are -+ * reserved for periodic transfers. -+ */ -+ qh_ptr = hcd->non_periodic_sched_inactive.next; -+ num_channels = hcd->core_if->core_params->host_channels; -+ while (qh_ptr != &hcd->non_periodic_sched_inactive && -+ (hcd->non_periodic_channels < -+ num_channels - hcd->periodic_channels) && -+ !list_empty(&hcd->free_hc_list)) { -+ -+ qh = list_entry(qh_ptr, dwc_otg_qh_t, qh_list_entry); -+ assign_and_init_hc(hcd, qh); -+ -+ /* -+ * Move the QH from the non-periodic inactive schedule to the -+ * non-periodic active schedule. -+ */ -+ qh_ptr = qh_ptr->next; -+ list_move(&qh->qh_list_entry, &hcd->non_periodic_sched_active); -+ -+ if (ret_val == DWC_OTG_TRANSACTION_NONE) { -+ ret_val = DWC_OTG_TRANSACTION_NON_PERIODIC; -+ } else { -+ ret_val = DWC_OTG_TRANSACTION_ALL; -+ } -+ -+ hcd->non_periodic_channels++; -+ } -+ spin_unlock(&hcd->lock); -+ -+ return ret_val; -+} -+ -+/** -+ * Attempts to queue a single transaction request for a host channel -+ * associated with either a periodic or non-periodic transfer. This function -+ * assumes that there is space available in the appropriate request queue. For -+ * an OUT transfer or SETUP transaction in Slave mode, it checks whether space -+ * is available in the appropriate Tx FIFO. -+ * -+ * @param hcd The HCD state structure. -+ * @param hc Host channel descriptor associated with either a periodic or -+ * non-periodic transfer. -+ * @param fifo_dwords_avail Number of DWORDs available in the periodic Tx -+ * FIFO for periodic transfers or the non-periodic Tx FIFO for non-periodic -+ * transfers. -+ * -+ * @return 1 if a request is queued and more requests may be needed to -+ * complete the transfer, 0 if no more requests are required for this -+ * transfer, -1 if there is insufficient space in the Tx FIFO. -+ */ -+static int queue_transaction(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ uint16_t fifo_dwords_avail) -+{ -+ int retval; -+ -+ if (hcd->core_if->dma_enable) { -+ if (!hc->xfer_started) { -+ dwc_otg_hc_start_transfer(hcd->core_if, hc); -+ hc->qh->ping_state = 0; -+ } -+ retval = 0; -+ } else if (hc->halt_pending) { -+ /* Don't queue a request if the channel has been halted. */ -+ retval = 0; -+ } else if (hc->halt_on_queue) { -+ dwc_otg_hc_halt(hcd->core_if, hc, hc->halt_status); -+ retval = 0; -+ } else if (hc->do_ping) { -+ if (!hc->xfer_started) { -+ dwc_otg_hc_start_transfer(hcd->core_if, hc); -+ } -+ retval = 0; -+ } else if (!hc->ep_is_in || -+ hc->data_pid_start == DWC_OTG_HC_PID_SETUP) { -+ if ((fifo_dwords_avail * 4) >= hc->max_packet) { -+ if (!hc->xfer_started) { -+ dwc_otg_hc_start_transfer(hcd->core_if, hc); -+ retval = 1; -+ } else { -+ retval = dwc_otg_hc_continue_transfer(hcd->core_if, hc); -+ } -+ } else { -+ retval = -1; -+ } -+ } else { -+ if (!hc->xfer_started) { -+ dwc_otg_hc_start_transfer(hcd->core_if, hc); -+ retval = 1; -+ } else { -+ retval = dwc_otg_hc_continue_transfer(hcd->core_if, hc); -+ } -+ } -+ -+ return retval; -+} -+ -+/** -+ * Processes active non-periodic channels and queues transactions for these -+ * channels to the DWC_otg controller. After queueing transactions, the NP Tx -+ * FIFO Empty interrupt is enabled if there are more transactions to queue as -+ * NP Tx FIFO or request queue space becomes available. Otherwise, the NP Tx -+ * FIFO Empty interrupt is disabled. -+ */ -+static void process_non_periodic_channels(dwc_otg_hcd_t *hcd) -+{ -+ gnptxsts_data_t tx_status; -+ struct list_head *orig_qh_ptr; -+ dwc_otg_qh_t *qh; -+ int status; -+ int no_queue_space = 0; -+ int no_fifo_space = 0; -+ int more_to_do = 0; -+ -+ dwc_otg_core_global_regs_t *global_regs = hcd->core_if->core_global_regs; -+ -+ DWC_DEBUGPL(DBG_HCDV, "Queue non-periodic transactions\n"); -+#ifdef DEBUG -+ tx_status.d32 = dwc_read_reg32(&global_regs->gnptxsts); -+ DWC_DEBUGPL(DBG_HCDV, " NP Tx Req Queue Space Avail (before queue): %d\n", -+ tx_status.b.nptxqspcavail); -+ DWC_DEBUGPL(DBG_HCDV, " NP Tx FIFO Space Avail (before queue): %d\n", -+ tx_status.b.nptxfspcavail); -+#endif -+ /* -+ * Keep track of the starting point. Skip over the start-of-list -+ * entry. -+ */ -+ if (hcd->non_periodic_qh_ptr == &hcd->non_periodic_sched_active) { -+ hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next; -+ } -+ orig_qh_ptr = hcd->non_periodic_qh_ptr; -+ -+ /* -+ * Process once through the active list or until no more space is -+ * available in the request queue or the Tx FIFO. -+ */ -+ do { -+ tx_status.d32 = dwc_read_reg32(&global_regs->gnptxsts); -+ if (!hcd->core_if->dma_enable && tx_status.b.nptxqspcavail == 0) { -+ no_queue_space = 1; -+ break; -+ } -+ -+ qh = list_entry(hcd->non_periodic_qh_ptr, dwc_otg_qh_t, qh_list_entry); -+ status = queue_transaction(hcd, qh->channel, tx_status.b.nptxfspcavail); -+ -+ if (status > 0) { -+ more_to_do = 1; -+ } else if (status < 0) { -+ no_fifo_space = 1; -+ break; -+ } -+ -+ /* Advance to next QH, skipping start-of-list entry. */ -+ hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next; -+ if (hcd->non_periodic_qh_ptr == &hcd->non_periodic_sched_active) { -+ hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next; -+ } -+ -+ } while (hcd->non_periodic_qh_ptr != orig_qh_ptr); -+ -+ if (!hcd->core_if->dma_enable) { -+ gintmsk_data_t intr_mask = {.d32 = 0}; -+ intr_mask.b.nptxfempty = 1; -+ -+#ifdef DEBUG -+ tx_status.d32 = dwc_read_reg32(&global_regs->gnptxsts); -+ DWC_DEBUGPL(DBG_HCDV, " NP Tx Req Queue Space Avail (after queue): %d\n", -+ tx_status.b.nptxqspcavail); -+ DWC_DEBUGPL(DBG_HCDV, " NP Tx FIFO Space Avail (after queue): %d\n", -+ tx_status.b.nptxfspcavail); -+#endif -+ if (more_to_do || no_queue_space || no_fifo_space) { -+ /* -+ * May need to queue more transactions as the request -+ * queue or Tx FIFO empties. Enable the non-periodic -+ * Tx FIFO empty interrupt. (Always use the half-empty -+ * level to ensure that new requests are loaded as -+ * soon as possible.) -+ */ -+ dwc_modify_reg32(&global_regs->gintmsk, 0, intr_mask.d32); -+ } else { -+ /* -+ * Disable the Tx FIFO empty interrupt since there are -+ * no more transactions that need to be queued right -+ * now. This function is called from interrupt -+ * handlers to queue more transactions as transfer -+ * states change. -+ */ -+ dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, 0); -+ } -+ } -+} -+ -+/** -+ * Processes periodic channels for the next frame and queues transactions for -+ * these channels to the DWC_otg controller. After queueing transactions, the -+ * Periodic Tx FIFO Empty interrupt is enabled if there are more transactions -+ * to queue as Periodic Tx FIFO or request queue space becomes available. -+ * Otherwise, the Periodic Tx FIFO Empty interrupt is disabled. -+ */ -+static void process_periodic_channels(dwc_otg_hcd_t *hcd) -+{ -+ hptxsts_data_t tx_status; -+ struct list_head *qh_ptr; -+ dwc_otg_qh_t *qh; -+ int status; -+ int no_queue_space = 0; -+ int no_fifo_space = 0; -+ -+ dwc_otg_host_global_regs_t *host_regs; -+ host_regs = hcd->core_if->host_if->host_global_regs; -+ -+ DWC_DEBUGPL(DBG_HCDV, "Queue periodic transactions\n"); -+#ifdef DEBUG -+ tx_status.d32 = dwc_read_reg32(&host_regs->hptxsts); -+ DWC_DEBUGPL(DBG_HCDV, " P Tx Req Queue Space Avail (before queue): %d\n", -+ tx_status.b.ptxqspcavail); -+ DWC_DEBUGPL(DBG_HCDV, " P Tx FIFO Space Avail (before queue): %d\n", -+ tx_status.b.ptxfspcavail); -+#endif -+ -+ qh_ptr = hcd->periodic_sched_assigned.next; -+ while (qh_ptr != &hcd->periodic_sched_assigned) { -+ tx_status.d32 = dwc_read_reg32(&host_regs->hptxsts); -+ if (tx_status.b.ptxqspcavail == 0) { -+ no_queue_space = 1; -+ break; -+ } -+ -+ qh = list_entry(qh_ptr, dwc_otg_qh_t, qh_list_entry); -+ -+ /* -+ * Set a flag if we're queuing high-bandwidth in slave mode. -+ * The flag prevents any halts to get into the request queue in -+ * the middle of multiple high-bandwidth packets getting queued. -+ */ -+ if (!hcd->core_if->dma_enable && -+ qh->channel->multi_count > 1) -+ { -+ hcd->core_if->queuing_high_bandwidth = 1; -+ } -+ -+ status = queue_transaction(hcd, qh->channel, tx_status.b.ptxfspcavail); -+ if (status < 0) { -+ no_fifo_space = 1; -+ break; -+ } -+ -+ /* -+ * In Slave mode, stay on the current transfer until there is -+ * nothing more to do or the high-bandwidth request count is -+ * reached. In DMA mode, only need to queue one request. The -+ * controller automatically handles multiple packets for -+ * high-bandwidth transfers. -+ */ -+ if (hcd->core_if->dma_enable || status == 0 || -+ qh->channel->requests == qh->channel->multi_count) { -+ qh_ptr = qh_ptr->next; -+ /* -+ * Move the QH from the periodic assigned schedule to -+ * the periodic queued schedule. -+ */ -+ list_move(&qh->qh_list_entry, &hcd->periodic_sched_queued); -+ -+ /* done queuing high bandwidth */ -+ hcd->core_if->queuing_high_bandwidth = 0; -+ } -+ } -+ -+ if (!hcd->core_if->dma_enable) { -+ dwc_otg_core_global_regs_t *global_regs; -+ gintmsk_data_t intr_mask = {.d32 = 0}; -+ -+ global_regs = hcd->core_if->core_global_regs; -+ intr_mask.b.ptxfempty = 1; -+#ifdef DEBUG -+ tx_status.d32 = dwc_read_reg32(&host_regs->hptxsts); -+ DWC_DEBUGPL(DBG_HCDV, " P Tx Req Queue Space Avail (after queue): %d\n", -+ tx_status.b.ptxqspcavail); -+ DWC_DEBUGPL(DBG_HCDV, " P Tx FIFO Space Avail (after queue): %d\n", -+ tx_status.b.ptxfspcavail); -+#endif -+ if (!list_empty(&hcd->periodic_sched_assigned) || -+ no_queue_space || no_fifo_space) { -+ /* -+ * May need to queue more transactions as the request -+ * queue or Tx FIFO empties. Enable the periodic Tx -+ * FIFO empty interrupt. (Always use the half-empty -+ * level to ensure that new requests are loaded as -+ * soon as possible.) -+ */ -+ dwc_modify_reg32(&global_regs->gintmsk, 0, intr_mask.d32); -+ } else { -+ /* -+ * Disable the Tx FIFO empty interrupt since there are -+ * no more transactions that need to be queued right -+ * now. This function is called from interrupt -+ * handlers to queue more transactions as transfer -+ * states change. -+ */ -+ dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, 0); -+ } -+ } -+} -+ -+/** -+ * This function processes the currently active host channels and queues -+ * transactions for these channels to the DWC_otg controller. It is called -+ * from HCD interrupt handler functions. -+ * -+ * @param hcd The HCD state structure. -+ * @param tr_type The type(s) of transactions to queue (non-periodic, -+ * periodic, or both). -+ */ -+void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t *hcd, -+ dwc_otg_transaction_type_e tr_type) -+{ -+#ifdef DEBUG_SOF -+ DWC_DEBUGPL(DBG_HCD, "Queue Transactions\n"); -+#endif -+ /* Process host channels associated with periodic transfers. */ -+ if ((tr_type == DWC_OTG_TRANSACTION_PERIODIC || -+ tr_type == DWC_OTG_TRANSACTION_ALL) && -+ !list_empty(&hcd->periodic_sched_assigned)) { -+ -+ process_periodic_channels(hcd); -+ } -+ -+ /* Process host channels associated with non-periodic transfers. */ -+ if (tr_type == DWC_OTG_TRANSACTION_NON_PERIODIC || -+ tr_type == DWC_OTG_TRANSACTION_ALL) { -+ if (!list_empty(&hcd->non_periodic_sched_active)) { -+ process_non_periodic_channels(hcd); -+ } else { -+ /* -+ * Ensure NP Tx FIFO empty interrupt is disabled when -+ * there are no non-periodic transfers to process. -+ */ -+ gintmsk_data_t gintmsk = {.d32 = 0}; -+ gintmsk.b.nptxfempty = 1; -+ dwc_modify_reg32(&hcd->core_if->core_global_regs->gintmsk, -+ gintmsk.d32, 0); -+ } -+ } -+} -+ -+/** -+ * Sets the final status of an URB and returns it to the device driver. Any -+ * required cleanup of the URB is performed. -+ */ -+void dwc_otg_hcd_complete_urb(dwc_otg_hcd_t *hcd, struct urb *urb, int status) -+{ -+#ifdef DEBUG -+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { -+ DWC_PRINT("%s: urb %p, device %d, ep %d %s, status=%d\n", -+ __func__, urb, usb_pipedevice(urb->pipe), -+ usb_pipeendpoint(urb->pipe), -+ usb_pipein(urb->pipe) ? "IN" : "OUT", status); -+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { -+ int i; -+ for (i = 0; i < urb->number_of_packets; i++) { -+ DWC_PRINT(" ISO Desc %d status: %d\n", -+ i, urb->iso_frame_desc[i].status); -+ } -+ } -+ } -+#endif -+ -+ //if we use the aligned buffer instead of the original unaligned buffer, -+ //for IN data, we have to move the data to the original buffer -+ if((urb->transfer_dma==urb->aligned_transfer_dma)&&((urb->transfer_flags & URB_DIR_MASK)==URB_DIR_IN)){ -+ dma_sync_single_for_device(NULL,urb->transfer_dma,urb->actual_length,DMA_FROM_DEVICE); -+ memcpy(urb->transfer_buffer,urb->aligned_transfer_buffer,urb->actual_length); -+ } -+ -+ -+ urb->status = status; -+ urb->hcpriv = NULL; -+ usb_hcd_giveback_urb(dwc_otg_hcd_to_hcd(hcd), urb, status); -+} -+ -+/* -+ * Returns the Queue Head for an URB. -+ */ -+dwc_otg_qh_t *dwc_urb_to_qh(struct urb *urb) -+{ -+ struct usb_host_endpoint *ep = dwc_urb_to_endpoint(urb); -+ return (dwc_otg_qh_t *)ep->hcpriv; -+} -+ -+#ifdef DEBUG -+void dwc_print_setup_data(uint8_t *setup) -+{ -+ int i; -+ if (CHK_DEBUG_LEVEL(DBG_HCD)){ -+ DWC_PRINT("Setup Data = MSB "); -+ for (i = 7; i >= 0; i--) DWC_PRINT("%02x ", setup[i]); -+ DWC_PRINT("\n"); -+ DWC_PRINT(" bmRequestType Tranfer = %s\n", (setup[0] & 0x80) ? "Device-to-Host" : "Host-to-Device"); -+ DWC_PRINT(" bmRequestType Type = "); -+ switch ((setup[0] & 0x60) >> 5) { -+ case 0: DWC_PRINT("Standard\n"); break; -+ case 1: DWC_PRINT("Class\n"); break; -+ case 2: DWC_PRINT("Vendor\n"); break; -+ case 3: DWC_PRINT("Reserved\n"); break; -+ } -+ DWC_PRINT(" bmRequestType Recipient = "); -+ switch (setup[0] & 0x1f) { -+ case 0: DWC_PRINT("Device\n"); break; -+ case 1: DWC_PRINT("Interface\n"); break; -+ case 2: DWC_PRINT("Endpoint\n"); break; -+ case 3: DWC_PRINT("Other\n"); break; -+ default: DWC_PRINT("Reserved\n"); break; -+ } -+ DWC_PRINT(" bRequest = 0x%0x\n", setup[1]); -+ DWC_PRINT(" wValue = 0x%0x\n", *((uint16_t *)&setup[2])); -+ DWC_PRINT(" wIndex = 0x%0x\n", *((uint16_t *)&setup[4])); -+ DWC_PRINT(" wLength = 0x%0x\n\n", *((uint16_t *)&setup[6])); -+ } -+} -+#endif -+ -+void dwc_otg_hcd_dump_frrem(dwc_otg_hcd_t *hcd) { -+} -+ -+void dwc_otg_hcd_dump_state(dwc_otg_hcd_t *hcd) -+{ -+#ifdef DEBUG -+ int num_channels; -+ int i; -+ gnptxsts_data_t np_tx_status; -+ hptxsts_data_t p_tx_status; -+ -+ num_channels = hcd->core_if->core_params->host_channels; -+ DWC_PRINT("\n"); -+ DWC_PRINT("************************************************************\n"); -+ DWC_PRINT("HCD State:\n"); -+ DWC_PRINT(" Num channels: %d\n", num_channels); -+ for (i = 0; i < num_channels; i++) { -+ dwc_hc_t *hc = hcd->hc_ptr_array[i]; -+ DWC_PRINT(" Channel %d:\n", i); -+ DWC_PRINT(" dev_addr: %d, ep_num: %d, ep_is_in: %d\n", -+ hc->dev_addr, hc->ep_num, hc->ep_is_in); -+ DWC_PRINT(" speed: %d\n", hc->speed); -+ DWC_PRINT(" ep_type: %d\n", hc->ep_type); -+ DWC_PRINT(" max_packet: %d\n", hc->max_packet); -+ DWC_PRINT(" data_pid_start: %d\n", hc->data_pid_start); -+ DWC_PRINT(" multi_count: %d\n", hc->multi_count); -+ DWC_PRINT(" xfer_started: %d\n", hc->xfer_started); -+ DWC_PRINT(" xfer_buff: %p\n", hc->xfer_buff); -+ DWC_PRINT(" xfer_len: %d\n", hc->xfer_len); -+ DWC_PRINT(" xfer_count: %d\n", hc->xfer_count); -+ DWC_PRINT(" halt_on_queue: %d\n", hc->halt_on_queue); -+ DWC_PRINT(" halt_pending: %d\n", hc->halt_pending); -+ DWC_PRINT(" halt_status: %d\n", hc->halt_status); -+ DWC_PRINT(" do_split: %d\n", hc->do_split); -+ DWC_PRINT(" complete_split: %d\n", hc->complete_split); -+ DWC_PRINT(" hub_addr: %d\n", hc->hub_addr); -+ DWC_PRINT(" port_addr: %d\n", hc->port_addr); -+ DWC_PRINT(" xact_pos: %d\n", hc->xact_pos); -+ DWC_PRINT(" requests: %d\n", hc->requests); -+ DWC_PRINT(" qh: %p\n", hc->qh); -+ if (hc->xfer_started) { -+ hfnum_data_t hfnum; -+ hcchar_data_t hcchar; -+ hctsiz_data_t hctsiz; -+ hcint_data_t hcint; -+ hcintmsk_data_t hcintmsk; -+ hfnum.d32 = dwc_read_reg32(&hcd->core_if->host_if->host_global_regs->hfnum); -+ hcchar.d32 = dwc_read_reg32(&hcd->core_if->host_if->hc_regs[i]->hcchar); -+ hctsiz.d32 = dwc_read_reg32(&hcd->core_if->host_if->hc_regs[i]->hctsiz); -+ hcint.d32 = dwc_read_reg32(&hcd->core_if->host_if->hc_regs[i]->hcint); -+ hcintmsk.d32 = dwc_read_reg32(&hcd->core_if->host_if->hc_regs[i]->hcintmsk); -+ DWC_PRINT(" hfnum: 0x%08x\n", hfnum.d32); -+ DWC_PRINT(" hcchar: 0x%08x\n", hcchar.d32); -+ DWC_PRINT(" hctsiz: 0x%08x\n", hctsiz.d32); -+ DWC_PRINT(" hcint: 0x%08x\n", hcint.d32); -+ DWC_PRINT(" hcintmsk: 0x%08x\n", hcintmsk.d32); -+ } -+ if (hc->xfer_started && hc->qh && hc->qh->qtd_in_process) { -+ dwc_otg_qtd_t *qtd; -+ struct urb *urb; -+ qtd = hc->qh->qtd_in_process; -+ urb = qtd->urb; -+ DWC_PRINT(" URB Info:\n"); -+ DWC_PRINT(" qtd: %p, urb: %p\n", qtd, urb); -+ if (urb) { -+ DWC_PRINT(" Dev: %d, EP: %d %s\n", -+ usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe), -+ usb_pipein(urb->pipe) ? "IN" : "OUT"); -+ DWC_PRINT(" Max packet size: %d\n", -+ usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))); -+ DWC_PRINT(" transfer_buffer: %p\n", urb->transfer_buffer); -+ DWC_PRINT(" transfer_dma: %p\n", (void *)urb->transfer_dma); -+ DWC_PRINT(" transfer_buffer_length: %d\n", urb->transfer_buffer_length); -+ DWC_PRINT(" actual_length: %d\n", urb->actual_length); -+ } -+ } -+ } -+ DWC_PRINT(" non_periodic_channels: %d\n", hcd->non_periodic_channels); -+ DWC_PRINT(" periodic_channels: %d\n", hcd->periodic_channels); -+ DWC_PRINT(" periodic_usecs: %d\n", hcd->periodic_usecs); -+ np_tx_status.d32 = dwc_read_reg32(&hcd->core_if->core_global_regs->gnptxsts); -+ DWC_PRINT(" NP Tx Req Queue Space Avail: %d\n", np_tx_status.b.nptxqspcavail); -+ DWC_PRINT(" NP Tx FIFO Space Avail: %d\n", np_tx_status.b.nptxfspcavail); -+ p_tx_status.d32 = dwc_read_reg32(&hcd->core_if->host_if->host_global_regs->hptxsts); -+ DWC_PRINT(" P Tx Req Queue Space Avail: %d\n", p_tx_status.b.ptxqspcavail); -+ DWC_PRINT(" P Tx FIFO Space Avail: %d\n", p_tx_status.b.ptxfspcavail); -+ dwc_otg_hcd_dump_frrem(hcd); -+ dwc_otg_dump_global_registers(hcd->core_if); -+ dwc_otg_dump_host_registers(hcd->core_if); -+ DWC_PRINT("************************************************************\n"); -+ DWC_PRINT("\n"); -+#endif -+} -+#endif /* DWC_DEVICE_ONLY */ ---- /dev/null -+++ b/drivers/usb/dwc/otg_hcd.h -@@ -0,0 +1,652 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd.h $ -+ * $Revision: #45 $ -+ * $Date: 2008/07/15 $ -+ * $Change: 1064918 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+#ifndef DWC_DEVICE_ONLY -+#ifndef __DWC_HCD_H__ -+#define __DWC_HCD_H__ -+ -+#include <linux/list.h> -+#include <linux/usb.h> -+#include <linux/usb/hcd.h> -+ -+struct dwc_otg_device; -+ -+#include "otg_cil.h" -+ -+/** -+ * @file -+ * -+ * This file contains the structures, constants, and interfaces for -+ * the Host Contoller Driver (HCD). -+ * -+ * The Host Controller Driver (HCD) is responsible for translating requests -+ * from the USB Driver into the appropriate actions on the DWC_otg controller. -+ * It isolates the USBD from the specifics of the controller by providing an -+ * API to the USBD. -+ */ -+ -+/** -+ * Phases for control transfers. -+ */ -+typedef enum dwc_otg_control_phase { -+ DWC_OTG_CONTROL_SETUP, -+ DWC_OTG_CONTROL_DATA, -+ DWC_OTG_CONTROL_STATUS -+} dwc_otg_control_phase_e; -+ -+/** Transaction types. */ -+typedef enum dwc_otg_transaction_type { -+ DWC_OTG_TRANSACTION_NONE, -+ DWC_OTG_TRANSACTION_PERIODIC, -+ DWC_OTG_TRANSACTION_NON_PERIODIC, -+ DWC_OTG_TRANSACTION_ALL -+} dwc_otg_transaction_type_e; -+ -+/** -+ * A Queue Transfer Descriptor (QTD) holds the state of a bulk, control, -+ * interrupt, or isochronous transfer. A single QTD is created for each URB -+ * (of one of these types) submitted to the HCD. The transfer associated with -+ * a QTD may require one or multiple transactions. -+ * -+ * A QTD is linked to a Queue Head, which is entered in either the -+ * non-periodic or periodic schedule for execution. When a QTD is chosen for -+ * execution, some or all of its transactions may be executed. After -+ * execution, the state of the QTD is updated. The QTD may be retired if all -+ * its transactions are complete or if an error occurred. Otherwise, it -+ * remains in the schedule so more transactions can be executed later. -+ */ -+typedef struct dwc_otg_qtd { -+ /** -+ * Determines the PID of the next data packet for the data phase of -+ * control transfers. Ignored for other transfer types.<br> -+ * One of the following values: -+ * - DWC_OTG_HC_PID_DATA0 -+ * - DWC_OTG_HC_PID_DATA1 -+ */ -+ uint8_t data_toggle; -+ -+ /** Current phase for control transfers (Setup, Data, or Status). */ -+ dwc_otg_control_phase_e control_phase; -+ -+ /** Keep track of the current split type -+ * for FS/LS endpoints on a HS Hub */ -+ uint8_t complete_split; -+ -+ /** How many bytes transferred during SSPLIT OUT */ -+ uint32_t ssplit_out_xfer_count; -+ -+ /** -+ * Holds the number of bus errors that have occurred for a transaction -+ * within this transfer. -+ */ -+ uint8_t error_count; -+ -+ /** -+ * Index of the next frame descriptor for an isochronous transfer. A -+ * frame descriptor describes the buffer position and length of the -+ * data to be transferred in the next scheduled (micro)frame of an -+ * isochronous transfer. It also holds status for that transaction. -+ * The frame index starts at 0. -+ */ -+ int isoc_frame_index; -+ -+ /** Position of the ISOC split on full/low speed */ -+ uint8_t isoc_split_pos; -+ -+ /** Position of the ISOC split in the buffer for the current frame */ -+ uint16_t isoc_split_offset; -+ -+ /** URB for this transfer */ -+ struct urb *urb; -+ -+ /** This list of QTDs */ -+ struct list_head qtd_list_entry; -+ -+} dwc_otg_qtd_t; -+ -+/** -+ * A Queue Head (QH) holds the static characteristics of an endpoint and -+ * maintains a list of transfers (QTDs) for that endpoint. A QH structure may -+ * be entered in either the non-periodic or periodic schedule. -+ */ -+typedef struct dwc_otg_qh { -+ /** -+ * Endpoint type. -+ * One of the following values: -+ * - USB_ENDPOINT_XFER_CONTROL -+ * - USB_ENDPOINT_XFER_ISOC -+ * - USB_ENDPOINT_XFER_BULK -+ * - USB_ENDPOINT_XFER_INT -+ */ -+ uint8_t ep_type; -+ uint8_t ep_is_in; -+ -+ /** wMaxPacketSize Field of Endpoint Descriptor. */ -+ uint16_t maxp; -+ -+ /** -+ * Determines the PID of the next data packet for non-control -+ * transfers. Ignored for control transfers.<br> -+ * One of the following values: -+ * - DWC_OTG_HC_PID_DATA0 -+ * - DWC_OTG_HC_PID_DATA1 -+ */ -+ uint8_t data_toggle; -+ -+ /** Ping state if 1. */ -+ uint8_t ping_state; -+ -+ /** -+ * List of QTDs for this QH. -+ */ -+ struct list_head qtd_list; -+ -+ /** Host channel currently processing transfers for this QH. */ -+ dwc_hc_t *channel; -+ -+ /** QTD currently assigned to a host channel for this QH. */ -+ dwc_otg_qtd_t *qtd_in_process; -+ -+ /** Full/low speed endpoint on high-speed hub requires split. */ -+ uint8_t do_split; -+ -+ /** @name Periodic schedule information */ -+ /** @{ */ -+ -+ /** Bandwidth in microseconds per (micro)frame. */ -+ uint8_t usecs; -+ -+ /** Interval between transfers in (micro)frames. */ -+ uint16_t interval; -+ -+ /** -+ * (micro)frame to initialize a periodic transfer. The transfer -+ * executes in the following (micro)frame. -+ */ -+ uint16_t sched_frame; -+ -+ /** (micro)frame at which last start split was initialized. */ -+ uint16_t start_split_frame; -+ -+ u16 speed; -+ u16 frame_usecs[8]; -+ -+ /** @} */ -+ -+ /** Entry for QH in either the periodic or non-periodic schedule. */ -+ struct list_head qh_list_entry; -+} dwc_otg_qh_t; -+ -+/** -+ * This structure holds the state of the HCD, including the non-periodic and -+ * periodic schedules. -+ */ -+typedef struct dwc_otg_hcd { -+ /** The DWC otg device pointer */ -+ struct dwc_otg_device *otg_dev; -+ -+ /** DWC OTG Core Interface Layer */ -+ dwc_otg_core_if_t *core_if; -+ -+ /** Internal DWC HCD Flags */ -+ volatile union dwc_otg_hcd_internal_flags { -+ uint32_t d32; -+ struct { -+ unsigned port_connect_status_change : 1; -+ unsigned port_connect_status : 1; -+ unsigned port_reset_change : 1; -+ unsigned port_enable_change : 1; -+ unsigned port_suspend_change : 1; -+ unsigned port_over_current_change : 1; -+ unsigned reserved : 27; -+ } b; -+ } flags; -+ -+ /** -+ * Inactive items in the non-periodic schedule. This is a list of -+ * Queue Heads. Transfers associated with these Queue Heads are not -+ * currently assigned to a host channel. -+ */ -+ struct list_head non_periodic_sched_inactive; -+ -+ /** -+ * Active items in the non-periodic schedule. This is a list of -+ * Queue Heads. Transfers associated with these Queue Heads are -+ * currently assigned to a host channel. -+ */ -+ struct list_head non_periodic_sched_active; -+ -+ /** -+ * Pointer to the next Queue Head to process in the active -+ * non-periodic schedule. -+ */ -+ struct list_head *non_periodic_qh_ptr; -+ -+ /** -+ * Inactive items in the periodic schedule. This is a list of QHs for -+ * periodic transfers that are _not_ scheduled for the next frame. -+ * Each QH in the list has an interval counter that determines when it -+ * needs to be scheduled for execution. This scheduling mechanism -+ * allows only a simple calculation for periodic bandwidth used (i.e. -+ * must assume that all periodic transfers may need to execute in the -+ * same frame). However, it greatly simplifies scheduling and should -+ * be sufficient for the vast majority of OTG hosts, which need to -+ * connect to a small number of peripherals at one time. -+ * -+ * Items move from this list to periodic_sched_ready when the QH -+ * interval counter is 0 at SOF. -+ */ -+ struct list_head periodic_sched_inactive; -+ -+ /** -+ * List of periodic QHs that are ready for execution in the next -+ * frame, but have not yet been assigned to host channels. -+ * -+ * Items move from this list to periodic_sched_assigned as host -+ * channels become available during the current frame. -+ */ -+ struct list_head periodic_sched_ready; -+ -+ /** -+ * List of periodic QHs to be executed in the next frame that are -+ * assigned to host channels. -+ * -+ * Items move from this list to periodic_sched_queued as the -+ * transactions for the QH are queued to the DWC_otg controller. -+ */ -+ struct list_head periodic_sched_assigned; -+ -+ /** -+ * List of periodic QHs that have been queued for execution. -+ * -+ * Items move from this list to either periodic_sched_inactive or -+ * periodic_sched_ready when the channel associated with the transfer -+ * is released. If the interval for the QH is 1, the item moves to -+ * periodic_sched_ready because it must be rescheduled for the next -+ * frame. Otherwise, the item moves to periodic_sched_inactive. -+ */ -+ struct list_head periodic_sched_queued; -+ -+ /** -+ * Total bandwidth claimed so far for periodic transfers. This value -+ * is in microseconds per (micro)frame. The assumption is that all -+ * periodic transfers may occur in the same (micro)frame. -+ */ -+ uint16_t periodic_usecs; -+ -+ /* -+ * Total bandwidth claimed so far for all periodic transfers -+ * in a frame. -+ * This will include a mixture of HS and FS transfers. -+ * Units are microseconds per (micro)frame. -+ * We have a budget per frame and have to schedule -+ * transactions accordingly. -+ * Watch out for the fact that things are actually scheduled for the -+ * "next frame". -+ */ -+ u16 frame_usecs[8]; -+ -+ /** -+ * Frame number read from the core at SOF. The value ranges from 0 to -+ * DWC_HFNUM_MAX_FRNUM. -+ */ -+ uint16_t frame_number; -+ -+ /** -+ * Free host channels in the controller. This is a list of -+ * dwc_hc_t items. -+ */ -+ struct list_head free_hc_list; -+ -+ /** -+ * Number of host channels assigned to periodic transfers. Currently -+ * assuming that there is a dedicated host channel for each periodic -+ * transaction and at least one host channel available for -+ * non-periodic transactions. -+ */ -+ int periodic_channels; -+ -+ /** -+ * Number of host channels assigned to non-periodic transfers. -+ */ -+ int non_periodic_channels; -+ -+ /** -+ * Array of pointers to the host channel descriptors. Allows accessing -+ * a host channel descriptor given the host channel number. This is -+ * useful in interrupt handlers. -+ */ -+ dwc_hc_t *hc_ptr_array[MAX_EPS_CHANNELS]; -+ -+ /** -+ * Buffer to use for any data received during the status phase of a -+ * control transfer. Normally no data is transferred during the status -+ * phase. This buffer is used as a bit bucket. -+ */ -+ uint8_t *status_buf; -+ -+ /** -+ * DMA address for status_buf. -+ */ -+ dma_addr_t status_buf_dma; -+#define DWC_OTG_HCD_STATUS_BUF_SIZE 64 -+ -+ /** -+ * Structure to allow starting the HCD in a non-interrupt context -+ * during an OTG role change. -+ */ -+ struct delayed_work start_work; -+ -+ /** -+ * Connection timer. An OTG host must display a message if the device -+ * does not connect. Started when the VBus power is turned on via -+ * sysfs attribute "buspower". -+ */ -+ struct timer_list conn_timer; -+ -+ /* Tasket to do a reset */ -+ struct tasklet_struct *reset_tasklet; -+ -+ /* */ -+ spinlock_t lock; -+ -+#ifdef DEBUG -+ uint32_t frrem_samples; -+ uint64_t frrem_accum; -+ -+ uint32_t hfnum_7_samples_a; -+ uint64_t hfnum_7_frrem_accum_a; -+ uint32_t hfnum_0_samples_a; -+ uint64_t hfnum_0_frrem_accum_a; -+ uint32_t hfnum_other_samples_a; -+ uint64_t hfnum_other_frrem_accum_a; -+ -+ uint32_t hfnum_7_samples_b; -+ uint64_t hfnum_7_frrem_accum_b; -+ uint32_t hfnum_0_samples_b; -+ uint64_t hfnum_0_frrem_accum_b; -+ uint32_t hfnum_other_samples_b; -+ uint64_t hfnum_other_frrem_accum_b; -+#endif -+} dwc_otg_hcd_t; -+ -+/** Gets the dwc_otg_hcd from a struct usb_hcd */ -+static inline dwc_otg_hcd_t *hcd_to_dwc_otg_hcd(struct usb_hcd *hcd) -+{ -+ return (dwc_otg_hcd_t *)(hcd->hcd_priv); -+} -+ -+/** Gets the struct usb_hcd that contains a dwc_otg_hcd_t. */ -+static inline struct usb_hcd *dwc_otg_hcd_to_hcd(dwc_otg_hcd_t *dwc_otg_hcd) -+{ -+ return container_of((void *)dwc_otg_hcd, struct usb_hcd, hcd_priv); -+} -+ -+/** @name HCD Create/Destroy Functions */ -+/** @{ */ -+extern int dwc_otg_hcd_init(struct platform_device *pdev); -+extern void dwc_otg_hcd_remove(struct platform_device *pdev); -+/** @} */ -+ -+/** @name Linux HC Driver API Functions */ -+/** @{ */ -+ -+extern int dwc_otg_hcd_start(struct usb_hcd *hcd); -+extern void dwc_otg_hcd_stop(struct usb_hcd *hcd); -+extern int dwc_otg_hcd_get_frame_number(struct usb_hcd *hcd); -+extern void dwc_otg_hcd_free(struct usb_hcd *hcd); -+extern int dwc_otg_hcd_urb_enqueue(struct usb_hcd *hcd, -+ // struct usb_host_endpoint *ep, -+ struct urb *urb, -+ gfp_t mem_flags -+ ); -+extern int dwc_otg_hcd_urb_dequeue(struct usb_hcd *hcd, -+ struct urb *urb, int status); -+extern void dwc_otg_hcd_endpoint_disable(struct usb_hcd *hcd, -+ struct usb_host_endpoint *ep); -+extern irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *hcd); -+extern int dwc_otg_hcd_hub_status_data(struct usb_hcd *hcd, -+ char *buf); -+extern int dwc_otg_hcd_hub_control(struct usb_hcd *hcd, -+ u16 typeReq, -+ u16 wValue, -+ u16 wIndex, -+ char *buf, -+ u16 wLength); -+ -+/** @} */ -+ -+/** @name Transaction Execution Functions */ -+/** @{ */ -+extern dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t *hcd); -+extern void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t *hcd, -+ dwc_otg_transaction_type_e tr_type); -+extern void dwc_otg_hcd_complete_urb(dwc_otg_hcd_t *_hcd, struct urb *urb, -+ int status); -+/** @} */ -+ -+/** @name Interrupt Handler Functions */ -+/** @{ */ -+extern int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_perio_tx_fifo_empty_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_incomplete_periodic_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_port_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_conn_id_status_change_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_disconnect_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd_t *dwc_otg_hcd, uint32_t num); -+extern int32_t dwc_otg_hcd_handle_session_req_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+extern int32_t dwc_otg_hcd_handle_wakeup_detected_intr(dwc_otg_hcd_t *dwc_otg_hcd); -+/** @} */ -+ -+ -+/** @name Schedule Queue Functions */ -+/** @{ */ -+ -+/* Implemented in dwc_otg_hcd_queue.c */ -+extern int init_hcd_usecs(dwc_otg_hcd_t *hcd); -+extern dwc_otg_qh_t *dwc_otg_hcd_qh_create(dwc_otg_hcd_t *hcd, struct urb *urb); -+extern void dwc_otg_hcd_qh_init(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, struct urb *urb); -+extern void dwc_otg_hcd_qh_free(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh); -+extern int dwc_otg_hcd_qh_add(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh); -+extern void dwc_otg_hcd_qh_remove(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh); -+extern void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, int sched_csplit); -+ -+/** Remove and free a QH */ -+static inline void dwc_otg_hcd_qh_remove_and_free(dwc_otg_hcd_t *hcd, -+ dwc_otg_qh_t *qh) -+{ -+ dwc_otg_hcd_qh_remove(hcd, qh); -+ dwc_otg_hcd_qh_free(hcd, qh); -+} -+ -+/** Allocates memory for a QH structure. -+ * @return Returns the memory allocate or NULL on error. */ -+static inline dwc_otg_qh_t *dwc_otg_hcd_qh_alloc(void) -+{ -+ return (dwc_otg_qh_t *) kmalloc(sizeof(dwc_otg_qh_t), GFP_KERNEL); -+} -+ -+extern dwc_otg_qtd_t *dwc_otg_hcd_qtd_create(struct urb *urb); -+extern void dwc_otg_hcd_qtd_init(dwc_otg_qtd_t *qtd, struct urb *urb); -+extern int dwc_otg_hcd_qtd_add(dwc_otg_qtd_t *qtd, dwc_otg_hcd_t *dwc_otg_hcd); -+ -+/** Allocates memory for a QTD structure. -+ * @return Returns the memory allocate or NULL on error. */ -+static inline dwc_otg_qtd_t *dwc_otg_hcd_qtd_alloc(void) -+{ -+ return (dwc_otg_qtd_t *) kmalloc(sizeof(dwc_otg_qtd_t), GFP_KERNEL); -+} -+ -+/** Frees the memory for a QTD structure. QTD should already be removed from -+ * list. -+ * @param[in] qtd QTD to free.*/ -+static inline void dwc_otg_hcd_qtd_free(dwc_otg_qtd_t *qtd) -+{ -+ kfree(qtd); -+} -+ -+/** Remove and free a QTD */ -+static inline void dwc_otg_hcd_qtd_remove_and_free(dwc_otg_hcd_t *hcd, dwc_otg_qtd_t *qtd) -+{ -+ list_del(&qtd->qtd_list_entry); -+ dwc_otg_hcd_qtd_free(qtd); -+} -+ -+/** @} */ -+ -+ -+/** @name Internal Functions */ -+/** @{ */ -+dwc_otg_qh_t *dwc_urb_to_qh(struct urb *urb); -+void dwc_otg_hcd_dump_frrem(dwc_otg_hcd_t *hcd); -+void dwc_otg_hcd_dump_state(dwc_otg_hcd_t *hcd); -+/** @} */ -+ -+/** Gets the usb_host_endpoint associated with an URB. */ -+static inline struct usb_host_endpoint *dwc_urb_to_endpoint(struct urb *urb) -+{ -+ struct usb_device *dev = urb->dev; -+ int ep_num = usb_pipeendpoint(urb->pipe); -+ -+ if (usb_pipein(urb->pipe)) -+ return dev->ep_in[ep_num]; -+ else -+ return dev->ep_out[ep_num]; -+} -+ -+/** -+ * Gets the endpoint number from a _bEndpointAddress argument. The endpoint is -+ * qualified with its direction (possible 32 endpoints per device). -+ */ -+#define dwc_ep_addr_to_endpoint(_bEndpointAddress_) ((_bEndpointAddress_ & USB_ENDPOINT_NUMBER_MASK) | \ -+ ((_bEndpointAddress_ & USB_DIR_IN) != 0) << 4) -+ -+/** Gets the QH that contains the list_head */ -+#define dwc_list_to_qh(_list_head_ptr_) container_of(_list_head_ptr_, dwc_otg_qh_t, qh_list_entry) -+ -+/** Gets the QTD that contains the list_head */ -+#define dwc_list_to_qtd(_list_head_ptr_) container_of(_list_head_ptr_, dwc_otg_qtd_t, qtd_list_entry) -+ -+/** Check if QH is non-periodic */ -+#define dwc_qh_is_non_per(_qh_ptr_) ((_qh_ptr_->ep_type == USB_ENDPOINT_XFER_BULK) || \ -+ (_qh_ptr_->ep_type == USB_ENDPOINT_XFER_CONTROL)) -+ -+/** High bandwidth multiplier as encoded in highspeed endpoint descriptors */ -+#define dwc_hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03)) -+ -+/** Packet size for any kind of endpoint descriptor */ -+#define dwc_max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff) -+ -+/** -+ * Returns true if _frame1 is less than or equal to _frame2. The comparison is -+ * done modulo DWC_HFNUM_MAX_FRNUM. This accounts for the rollover of the -+ * frame number when the max frame number is reached. -+ */ -+static inline int dwc_frame_num_le(uint16_t frame1, uint16_t frame2) -+{ -+ return ((frame2 - frame1) & DWC_HFNUM_MAX_FRNUM) <= -+ (DWC_HFNUM_MAX_FRNUM >> 1); -+} -+ -+/** -+ * Returns true if _frame1 is greater than _frame2. The comparison is done -+ * modulo DWC_HFNUM_MAX_FRNUM. This accounts for the rollover of the frame -+ * number when the max frame number is reached. -+ */ -+static inline int dwc_frame_num_gt(uint16_t frame1, uint16_t frame2) -+{ -+ return (frame1 != frame2) && -+ (((frame1 - frame2) & DWC_HFNUM_MAX_FRNUM) < -+ (DWC_HFNUM_MAX_FRNUM >> 1)); -+} -+ -+/** -+ * Increments _frame by the amount specified by _inc. The addition is done -+ * modulo DWC_HFNUM_MAX_FRNUM. Returns the incremented value. -+ */ -+static inline uint16_t dwc_frame_num_inc(uint16_t frame, uint16_t inc) -+{ -+ return (frame + inc) & DWC_HFNUM_MAX_FRNUM; -+} -+ -+static inline uint16_t dwc_full_frame_num(uint16_t frame) -+{ -+ return (frame & DWC_HFNUM_MAX_FRNUM) >> 3; -+} -+ -+static inline uint16_t dwc_micro_frame_num(uint16_t frame) -+{ -+ return frame & 0x7; -+} -+ -+#ifdef DEBUG -+/** -+ * Macro to sample the remaining PHY clocks left in the current frame. This -+ * may be used during debugging to determine the average time it takes to -+ * execute sections of code. There are two possible sample points, "a" and -+ * "b", so the _letter argument must be one of these values. -+ * -+ * To dump the average sample times, read the "hcd_frrem" sysfs attribute. For -+ * example, "cat /sys/devices/lm0/hcd_frrem". -+ */ -+#define dwc_sample_frrem(_hcd, _qh, _letter) \ -+{ \ -+ hfnum_data_t hfnum; \ -+ dwc_otg_qtd_t *qtd; \ -+ qtd = list_entry(_qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); \ -+ if (usb_pipeint(qtd->urb->pipe) && _qh->start_split_frame != 0 && !qtd->complete_split) { \ -+ hfnum.d32 = dwc_read_reg32(&_hcd->core_if->host_if->host_global_regs->hfnum); \ -+ switch (hfnum.b.frnum & 0x7) { \ -+ case 7: \ -+ _hcd->hfnum_7_samples_##_letter++; \ -+ _hcd->hfnum_7_frrem_accum_##_letter += hfnum.b.frrem; \ -+ break; \ -+ case 0: \ -+ _hcd->hfnum_0_samples_##_letter++; \ -+ _hcd->hfnum_0_frrem_accum_##_letter += hfnum.b.frrem; \ -+ break; \ -+ default: \ -+ _hcd->hfnum_other_samples_##_letter++; \ -+ _hcd->hfnum_other_frrem_accum_##_letter += hfnum.b.frrem; \ -+ break; \ -+ } \ -+ } \ -+} -+#else -+#define dwc_sample_frrem(_hcd, _qh, _letter) -+#endif -+#endif -+#endif /* DWC_DEVICE_ONLY */ ---- /dev/null -+++ b/drivers/usb/dwc/otg_hcd_intr.c -@@ -0,0 +1,1828 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_intr.c $ -+ * $Revision: #70 $ -+ * $Date: 2008/10/16 $ -+ * $Change: 1117667 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+#ifndef DWC_DEVICE_ONLY -+ -+#include <linux/version.h> -+ -+#include "otg_driver.h" -+#include "otg_hcd.h" -+#include "otg_regs.h" -+ -+/** @file -+ * This file contains the implementation of the HCD Interrupt handlers. -+ */ -+ -+/** This function handles interrupts for the HCD. */ -+int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t *dwc_otg_hcd) -+{ -+ int retval = 0; -+ -+ dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; -+ gintsts_data_t gintsts; -+#ifdef DEBUG -+ dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; -+#endif -+ -+ /* Check if HOST Mode */ -+ if (dwc_otg_is_host_mode(core_if)) { -+ gintsts.d32 = dwc_otg_read_core_intr(core_if); -+ if (!gintsts.d32) { -+ return 0; -+ } -+ -+#ifdef DEBUG -+ /* Don't print debug message in the interrupt handler on SOF */ -+# ifndef DEBUG_SOF -+ if (gintsts.d32 != DWC_SOF_INTR_MASK) -+# endif -+ DWC_DEBUGPL(DBG_HCD, "\n"); -+#endif -+ -+#ifdef DEBUG -+# ifndef DEBUG_SOF -+ if (gintsts.d32 != DWC_SOF_INTR_MASK) -+# endif -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Interrupt Detected gintsts&gintmsk=0x%08x\n", gintsts.d32); -+#endif -+ if (gintsts.b.usbreset) { -+ DWC_PRINT("Usb Reset In Host Mode\n"); -+ } -+ if (gintsts.b.sofintr) { -+ retval |= dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd); -+ } -+ if (gintsts.b.rxstsqlvl) { -+ retval |= dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd); -+ } -+ if (gintsts.b.nptxfempty) { -+ retval |= dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd); -+ } -+ if (gintsts.b.i2cintr) { -+ /** @todo Implement i2cintr handler. */ -+ } -+ if (gintsts.b.portintr) { -+ retval |= dwc_otg_hcd_handle_port_intr(dwc_otg_hcd); -+ } -+ if (gintsts.b.hcintr) { -+ retval |= dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd); -+ } -+ if (gintsts.b.ptxfempty) { -+ retval |= dwc_otg_hcd_handle_perio_tx_fifo_empty_intr(dwc_otg_hcd); -+ } -+#ifdef DEBUG -+# ifndef DEBUG_SOF -+ if (gintsts.d32 != DWC_SOF_INTR_MASK) -+# endif -+ { -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Finished Servicing Interrupts\n"); -+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD gintsts=0x%08x\n", -+ dwc_read_reg32(&global_regs->gintsts)); -+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD gintmsk=0x%08x\n", -+ dwc_read_reg32(&global_regs->gintmsk)); -+ } -+#endif -+ -+#ifdef DEBUG -+# ifndef DEBUG_SOF -+ if (gintsts.d32 != DWC_SOF_INTR_MASK) -+# endif -+ DWC_DEBUGPL(DBG_HCD, "\n"); -+#endif -+ -+ } -+ S3C2410X_CLEAR_EINTPEND(); -+ -+ return retval; -+} -+ -+#ifdef DWC_TRACK_MISSED_SOFS -+#warning Compiling code to track missed SOFs -+#define FRAME_NUM_ARRAY_SIZE 1000 -+/** -+ * This function is for debug only. -+ */ -+static inline void track_missed_sofs(uint16_t curr_frame_number) -+{ -+ static uint16_t frame_num_array[FRAME_NUM_ARRAY_SIZE]; -+ static uint16_t last_frame_num_array[FRAME_NUM_ARRAY_SIZE]; -+ static int frame_num_idx = 0; -+ static uint16_t last_frame_num = DWC_HFNUM_MAX_FRNUM; -+ static int dumped_frame_num_array = 0; -+ -+ if (frame_num_idx < FRAME_NUM_ARRAY_SIZE) { -+ if (((last_frame_num + 1) & DWC_HFNUM_MAX_FRNUM) != curr_frame_number) { -+ frame_num_array[frame_num_idx] = curr_frame_number; -+ last_frame_num_array[frame_num_idx++] = last_frame_num; -+ } -+ } else if (!dumped_frame_num_array) { -+ int i; -+ printk(KERN_EMERG USB_DWC "Frame Last Frame\n"); -+ printk(KERN_EMERG USB_DWC "----- ----------\n"); -+ for (i = 0; i < FRAME_NUM_ARRAY_SIZE; i++) { -+ printk(KERN_EMERG USB_DWC "0x%04x 0x%04x\n", -+ frame_num_array[i], last_frame_num_array[i]); -+ } -+ dumped_frame_num_array = 1; -+ } -+ last_frame_num = curr_frame_number; -+} -+#endif -+ -+/** -+ * Handles the start-of-frame interrupt in host mode. Non-periodic -+ * transactions may be queued to the DWC_otg controller for the current -+ * (micro)frame. Periodic transactions may be queued to the controller for the -+ * next (micro)frame. -+ */ -+int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t *hcd) -+{ -+ hfnum_data_t hfnum; -+ struct list_head *qh_entry; -+ dwc_otg_qh_t *qh; -+ dwc_otg_transaction_type_e tr_type; -+ gintsts_data_t gintsts = {.d32 = 0}; -+ -+ hfnum.d32 = dwc_read_reg32(&hcd->core_if->host_if->host_global_regs->hfnum); -+ -+#ifdef DEBUG_SOF -+ DWC_DEBUGPL(DBG_HCD, "--Start of Frame Interrupt--\n"); -+#endif -+ hcd->frame_number = hfnum.b.frnum; -+ -+#ifdef DEBUG -+ hcd->frrem_accum += hfnum.b.frrem; -+ hcd->frrem_samples++; -+#endif -+ -+#ifdef DWC_TRACK_MISSED_SOFS -+ track_missed_sofs(hcd->frame_number); -+#endif -+ -+ /* Determine whether any periodic QHs should be executed. */ -+ qh_entry = hcd->periodic_sched_inactive.next; -+ while (qh_entry != &hcd->periodic_sched_inactive) { -+ qh = list_entry(qh_entry, dwc_otg_qh_t, qh_list_entry); -+ qh_entry = qh_entry->next; -+ if (dwc_frame_num_le(qh->sched_frame, hcd->frame_number)) { -+ /* -+ * Move QH to the ready list to be executed next -+ * (micro)frame. -+ */ -+ list_move(&qh->qh_list_entry, &hcd->periodic_sched_ready); -+ } -+ } -+ -+ tr_type = dwc_otg_hcd_select_transactions(hcd); -+ if (tr_type != DWC_OTG_TRANSACTION_NONE) { -+ dwc_otg_hcd_queue_transactions(hcd, tr_type); -+ } -+ -+ /* Clear interrupt */ -+ gintsts.b.sofintr = 1; -+ dwc_write_reg32(&hcd->core_if->core_global_regs->gintsts, gintsts.d32); -+ -+ return 1; -+} -+ -+/** Handles the Rx Status Queue Level Interrupt, which indicates that there is at -+ * least one packet in the Rx FIFO. The packets are moved from the FIFO to -+ * memory if the DWC_otg controller is operating in Slave mode. */ -+int32_t dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd_t *dwc_otg_hcd) -+{ -+ host_grxsts_data_t grxsts; -+ dwc_hc_t *hc = NULL; -+ -+ DWC_DEBUGPL(DBG_HCD, "--RxStsQ Level Interrupt--\n"); -+ -+ grxsts.d32 = dwc_read_reg32(&dwc_otg_hcd->core_if->core_global_regs->grxstsp); -+ -+ hc = dwc_otg_hcd->hc_ptr_array[grxsts.b.chnum]; -+ -+ /* Packet Status */ -+ DWC_DEBUGPL(DBG_HCDV, " Ch num = %d\n", grxsts.b.chnum); -+ DWC_DEBUGPL(DBG_HCDV, " Count = %d\n", grxsts.b.bcnt); -+ DWC_DEBUGPL(DBG_HCDV, " DPID = %d, hc.dpid = %d\n", grxsts.b.dpid, hc->data_pid_start); -+ DWC_DEBUGPL(DBG_HCDV, " PStatus = %d\n", grxsts.b.pktsts); -+ -+ switch (grxsts.b.pktsts) { -+ case DWC_GRXSTS_PKTSTS_IN: -+ /* Read the data into the host buffer. */ -+ if (grxsts.b.bcnt > 0) { -+ dwc_otg_read_packet(dwc_otg_hcd->core_if, -+ hc->xfer_buff, -+ grxsts.b.bcnt); -+ -+ /* Update the HC fields for the next packet received. */ -+ hc->xfer_count += grxsts.b.bcnt; -+ hc->xfer_buff += grxsts.b.bcnt; -+ } -+ -+ case DWC_GRXSTS_PKTSTS_IN_XFER_COMP: -+ case DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR: -+ case DWC_GRXSTS_PKTSTS_CH_HALTED: -+ /* Handled in interrupt, just ignore data */ -+ break; -+ default: -+ DWC_ERROR("RX_STS_Q Interrupt: Unknown status %d\n", grxsts.b.pktsts); -+ break; -+ } -+ -+ return 1; -+} -+ -+/** This interrupt occurs when the non-periodic Tx FIFO is half-empty. More -+ * data packets may be written to the FIFO for OUT transfers. More requests -+ * may be written to the non-periodic request queue for IN transfers. This -+ * interrupt is enabled only in Slave mode. */ -+int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd_t *dwc_otg_hcd) -+{ -+ DWC_DEBUGPL(DBG_HCD, "--Non-Periodic TxFIFO Empty Interrupt--\n"); -+ dwc_otg_hcd_queue_transactions(dwc_otg_hcd, -+ DWC_OTG_TRANSACTION_NON_PERIODIC); -+ return 1; -+} -+ -+/** This interrupt occurs when the periodic Tx FIFO is half-empty. More data -+ * packets may be written to the FIFO for OUT transfers. More requests may be -+ * written to the periodic request queue for IN transfers. This interrupt is -+ * enabled only in Slave mode. */ -+int32_t dwc_otg_hcd_handle_perio_tx_fifo_empty_intr(dwc_otg_hcd_t *dwc_otg_hcd) -+{ -+ DWC_DEBUGPL(DBG_HCD, "--Periodic TxFIFO Empty Interrupt--\n"); -+ dwc_otg_hcd_queue_transactions(dwc_otg_hcd, -+ DWC_OTG_TRANSACTION_PERIODIC); -+ return 1; -+} -+ -+/** There are multiple conditions that can cause a port interrupt. This function -+ * determines which interrupt conditions have occurred and handles them -+ * appropriately. */ -+int32_t dwc_otg_hcd_handle_port_intr(dwc_otg_hcd_t *dwc_otg_hcd) -+{ -+ int retval = 0; -+ hprt0_data_t hprt0; -+ hprt0_data_t hprt0_modify; -+ -+ hprt0.d32 = dwc_read_reg32(dwc_otg_hcd->core_if->host_if->hprt0); -+ hprt0_modify.d32 = dwc_read_reg32(dwc_otg_hcd->core_if->host_if->hprt0); -+ -+ /* Clear appropriate bits in HPRT0 to clear the interrupt bit in -+ * GINTSTS */ -+ -+ hprt0_modify.b.prtena = 0; -+ hprt0_modify.b.prtconndet = 0; -+ hprt0_modify.b.prtenchng = 0; -+ hprt0_modify.b.prtovrcurrchng = 0; -+ -+ /* Port Connect Detected -+ * Set flag and clear if detected */ -+ if (hprt0.b.prtconndet) { -+ DWC_DEBUGPL(DBG_HCD, "--Port Interrupt HPRT0=0x%08x " -+ "Port Connect Detected--\n", hprt0.d32); -+ dwc_otg_hcd->flags.b.port_connect_status_change = 1; -+ dwc_otg_hcd->flags.b.port_connect_status = 1; -+ hprt0_modify.b.prtconndet = 1; -+ -+ /* B-Device has connected, Delete the connection timer. */ -+ del_timer( &dwc_otg_hcd->conn_timer ); -+ -+ /* The Hub driver asserts a reset when it sees port connect -+ * status change flag */ -+ retval |= 1; -+ } -+ -+ /* Port Enable Changed -+ * Clear if detected - Set internal flag if disabled */ -+ if (hprt0.b.prtenchng) { -+ DWC_DEBUGPL(DBG_HCD, " --Port Interrupt HPRT0=0x%08x " -+ "Port Enable Changed--\n", hprt0.d32); -+ hprt0_modify.b.prtenchng = 1; -+ if (hprt0.b.prtena == 1) { -+ int do_reset = 0; -+ dwc_otg_core_params_t *params = dwc_otg_hcd->core_if->core_params; -+ dwc_otg_core_global_regs_t *global_regs = dwc_otg_hcd->core_if->core_global_regs; -+ dwc_otg_host_if_t *host_if = dwc_otg_hcd->core_if->host_if; -+ -+ /* Check if we need to adjust the PHY clock speed for -+ * low power and adjust it */ -+ if (params->host_support_fs_ls_low_power) { -+ gusbcfg_data_t usbcfg; -+ -+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); -+ -+ if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED || -+ hprt0.b.prtspd == DWC_HPRT0_PRTSPD_FULL_SPEED) { -+ /* -+ * Low power -+ */ -+ hcfg_data_t hcfg; -+ if (usbcfg.b.phylpwrclksel == 0) { -+ /* Set PHY low power clock select for FS/LS devices */ -+ usbcfg.b.phylpwrclksel = 1; -+ dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); -+ do_reset = 1; -+ } -+ -+ hcfg.d32 = dwc_read_reg32(&host_if->host_global_regs->hcfg); -+ -+ if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED && -+ params->host_ls_low_power_phy_clk == -+ DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ) { -+ /* 6 MHZ */ -+ DWC_DEBUGPL(DBG_CIL, "FS_PHY programming HCFG to 6 MHz (Low Power)\n"); -+ if (hcfg.b.fslspclksel != DWC_HCFG_6_MHZ) { -+ hcfg.b.fslspclksel = DWC_HCFG_6_MHZ; -+ dwc_write_reg32(&host_if->host_global_regs->hcfg, -+ hcfg.d32); -+ do_reset = 1; -+ } -+ } else { -+ /* 48 MHZ */ -+ DWC_DEBUGPL(DBG_CIL, "FS_PHY programming HCFG to 48 MHz ()\n"); -+ if (hcfg.b.fslspclksel != DWC_HCFG_48_MHZ) { -+ hcfg.b.fslspclksel = DWC_HCFG_48_MHZ; -+ dwc_write_reg32(&host_if->host_global_regs->hcfg, -+ hcfg.d32); -+ do_reset = 1; -+ } -+ } -+ } else { -+ /* -+ * Not low power -+ */ -+ if (usbcfg.b.phylpwrclksel == 1) { -+ usbcfg.b.phylpwrclksel = 0; -+ dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); -+ do_reset = 1; -+ } -+ } -+ -+ if (do_reset) { -+ tasklet_schedule(dwc_otg_hcd->reset_tasklet); -+ } -+ } -+ -+ if (!do_reset) { -+ /* Port has been enabled set the reset change flag */ -+ dwc_otg_hcd->flags.b.port_reset_change = 1; -+ } -+ } else { -+ dwc_otg_hcd->flags.b.port_enable_change = 1; -+ } -+ retval |= 1; -+ } -+ -+ /** Overcurrent Change Interrupt */ -+ if (hprt0.b.prtovrcurrchng) { -+ DWC_DEBUGPL(DBG_HCD, " --Port Interrupt HPRT0=0x%08x " -+ "Port Overcurrent Changed--\n", hprt0.d32); -+ dwc_otg_hcd->flags.b.port_over_current_change = 1; -+ hprt0_modify.b.prtovrcurrchng = 1; -+ retval |= 1; -+ } -+ -+ /* Clear Port Interrupts */ -+ dwc_write_reg32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0_modify.d32); -+ -+ return retval; -+} -+ -+/** This interrupt indicates that one or more host channels has a pending -+ * interrupt. There are multiple conditions that can cause each host channel -+ * interrupt. This function determines which conditions have occurred for each -+ * host channel interrupt and handles them appropriately. */ -+int32_t dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd_t *dwc_otg_hcd) -+{ -+ int i; -+ int retval = 0; -+ haint_data_t haint; -+ -+ /* Clear appropriate bits in HCINTn to clear the interrupt bit in -+ * GINTSTS */ -+ -+ haint.d32 = dwc_otg_read_host_all_channels_intr(dwc_otg_hcd->core_if); -+ -+ for (i = 0; i < dwc_otg_hcd->core_if->core_params->host_channels; i++) { -+ if (haint.b2.chint & (1 << i)) { -+ retval |= dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd, i); -+ } -+ } -+ -+ return retval; -+} -+ -+/* Macro used to clear one channel interrupt */ -+#define clear_hc_int(_hc_regs_, _intr_) \ -+do { \ -+ hcint_data_t hcint_clear = {.d32 = 0}; \ -+ hcint_clear.b._intr_ = 1; \ -+ dwc_write_reg32(&(_hc_regs_)->hcint, hcint_clear.d32); \ -+} while (0) -+ -+/* -+ * Macro used to disable one channel interrupt. Channel interrupts are -+ * disabled when the channel is halted or released by the interrupt handler. -+ * There is no need to handle further interrupts of that type until the -+ * channel is re-assigned. In fact, subsequent handling may cause crashes -+ * because the channel structures are cleaned up when the channel is released. -+ */ -+#define disable_hc_int(_hc_regs_, _intr_) \ -+do { \ -+ hcintmsk_data_t hcintmsk = {.d32 = 0}; \ -+ hcintmsk.b._intr_ = 1; \ -+ dwc_modify_reg32(&(_hc_regs_)->hcintmsk, hcintmsk.d32, 0); \ -+} while (0) -+ -+/** -+ * Gets the actual length of a transfer after the transfer halts. _halt_status -+ * holds the reason for the halt. -+ * -+ * For IN transfers where halt_status is DWC_OTG_HC_XFER_COMPLETE, -+ * *short_read is set to 1 upon return if less than the requested -+ * number of bytes were transferred. Otherwise, *short_read is set to 0 upon -+ * return. short_read may also be NULL on entry, in which case it remains -+ * unchanged. -+ */ -+static uint32_t get_actual_xfer_length(dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd, -+ dwc_otg_halt_status_e halt_status, -+ int *short_read) -+{ -+ hctsiz_data_t hctsiz; -+ uint32_t length; -+ -+ if (short_read != NULL) { -+ *short_read = 0; -+ } -+ hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); -+ -+ if (halt_status == DWC_OTG_HC_XFER_COMPLETE) { -+ if (hc->ep_is_in) { -+ length = hc->xfer_len - hctsiz.b.xfersize; -+ if (short_read != NULL) { -+ *short_read = (hctsiz.b.xfersize != 0); -+ } -+ } else if (hc->qh->do_split) { -+ length = qtd->ssplit_out_xfer_count; -+ } else { -+ length = hc->xfer_len; -+ } -+ } else { -+ /* -+ * Must use the hctsiz.pktcnt field to determine how much data -+ * has been transferred. This field reflects the number of -+ * packets that have been transferred via the USB. This is -+ * always an integral number of packets if the transfer was -+ * halted before its normal completion. (Can't use the -+ * hctsiz.xfersize field because that reflects the number of -+ * bytes transferred via the AHB, not the USB). -+ */ -+ length = (hc->start_pkt_count - hctsiz.b.pktcnt) * hc->max_packet; -+ } -+ -+ return length; -+} -+ -+/** -+ * Updates the state of the URB after a Transfer Complete interrupt on the -+ * host channel. Updates the actual_length field of the URB based on the -+ * number of bytes transferred via the host channel. Sets the URB status -+ * if the data transfer is finished. -+ * -+ * @return 1 if the data transfer specified by the URB is completely finished, -+ * 0 otherwise. -+ */ -+static int update_urb_state_xfer_comp(dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ struct urb *urb, -+ dwc_otg_qtd_t *qtd) -+{ -+ int xfer_done = 0; -+ int short_read = 0; -+ -+ urb->actual_length += get_actual_xfer_length(hc, hc_regs, qtd, -+ DWC_OTG_HC_XFER_COMPLETE, -+ &short_read); -+ -+ if (short_read || urb->actual_length == urb->transfer_buffer_length) { -+ xfer_done = 1; -+ if (short_read && (urb->transfer_flags & URB_SHORT_NOT_OK)) { -+ urb->status = -EREMOTEIO; -+ } else { -+ urb->status = 0; -+ } -+ } -+ -+#ifdef DEBUG -+ { -+ hctsiz_data_t hctsiz; -+ hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); -+ DWC_DEBUGPL(DBG_HCDV, "DWC_otg: %s: %s, channel %d\n", -+ __func__, (hc->ep_is_in ? "IN" : "OUT"), hc->hc_num); -+ DWC_DEBUGPL(DBG_HCDV, " hc->xfer_len %d\n", hc->xfer_len); -+ DWC_DEBUGPL(DBG_HCDV, " hctsiz.xfersize %d\n", hctsiz.b.xfersize); -+ DWC_DEBUGPL(DBG_HCDV, " urb->transfer_buffer_length %d\n", -+ urb->transfer_buffer_length); -+ DWC_DEBUGPL(DBG_HCDV, " urb->actual_length %d\n", urb->actual_length); -+ DWC_DEBUGPL(DBG_HCDV, " short_read %d, xfer_done %d\n", -+ short_read, xfer_done); -+ } -+#endif -+ -+ return xfer_done; -+} -+ -+/* -+ * Save the starting data toggle for the next transfer. The data toggle is -+ * saved in the QH for non-control transfers and it's saved in the QTD for -+ * control transfers. -+ */ -+static void save_data_toggle(dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ hctsiz_data_t hctsiz; -+ hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); -+ -+ if (hc->ep_type != DWC_OTG_EP_TYPE_CONTROL) { -+ dwc_otg_qh_t *qh = hc->qh; -+ if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) { -+ qh->data_toggle = DWC_OTG_HC_PID_DATA0; -+ } else { -+ qh->data_toggle = DWC_OTG_HC_PID_DATA1; -+ } -+ } else { -+ if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) { -+ qtd->data_toggle = DWC_OTG_HC_PID_DATA0; -+ } else { -+ qtd->data_toggle = DWC_OTG_HC_PID_DATA1; -+ } -+ } -+} -+ -+/** -+ * Frees the first QTD in the QH's list if free_qtd is 1. For non-periodic -+ * QHs, removes the QH from the active non-periodic schedule. If any QTDs are -+ * still linked to the QH, the QH is added to the end of the inactive -+ * non-periodic schedule. For periodic QHs, removes the QH from the periodic -+ * schedule if no more QTDs are linked to the QH. -+ */ -+static void deactivate_qh(dwc_otg_hcd_t *hcd, -+ dwc_otg_qh_t *qh, -+ int free_qtd) -+{ -+ int continue_split = 0; -+ dwc_otg_qtd_t *qtd; -+ -+ DWC_DEBUGPL(DBG_HCDV, " %s(%p,%p,%d)\n", __func__, hcd, qh, free_qtd); -+ -+ spin_lock(&hcd->lock); -+ qtd = list_entry(qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); -+ -+ if (qtd->complete_split) { -+ continue_split = 1; -+ } else if (qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_MID || -+ qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_END) { -+ continue_split = 1; -+ } -+ -+ if (free_qtd) { -+ dwc_otg_hcd_qtd_remove_and_free(hcd, qtd); -+ continue_split = 0; -+ } -+ -+ qh->channel = NULL; -+ qh->qtd_in_process = NULL; -+ spin_unlock(&hcd->lock); -+ dwc_otg_hcd_qh_deactivate(hcd, qh, continue_split); -+} -+ -+/** -+ * Updates the state of an Isochronous URB when the transfer is stopped for -+ * any reason. The fields of the current entry in the frame descriptor array -+ * are set based on the transfer state and the input _halt_status. Completes -+ * the Isochronous URB if all the URB frames have been completed. -+ * -+ * @return DWC_OTG_HC_XFER_COMPLETE if there are more frames remaining to be -+ * transferred in the URB. Otherwise return DWC_OTG_HC_XFER_URB_COMPLETE. -+ */ -+static dwc_otg_halt_status_e -+update_isoc_urb_state(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd, -+ dwc_otg_halt_status_e halt_status) -+{ -+ struct urb *urb = qtd->urb; -+ dwc_otg_halt_status_e ret_val = halt_status; -+ struct usb_iso_packet_descriptor *frame_desc; -+ -+ frame_desc = &urb->iso_frame_desc[qtd->isoc_frame_index]; -+ switch (halt_status) { -+ case DWC_OTG_HC_XFER_COMPLETE: -+ frame_desc->status = 0; -+ frame_desc->actual_length = -+ get_actual_xfer_length(hc, hc_regs, qtd, -+ halt_status, NULL); -+ break; -+ case DWC_OTG_HC_XFER_FRAME_OVERRUN: -+ urb->error_count++; -+ if (hc->ep_is_in) { -+ frame_desc->status = -ENOSR; -+ } else { -+ frame_desc->status = -ECOMM; -+ } -+ frame_desc->actual_length = 0; -+ break; -+ case DWC_OTG_HC_XFER_BABBLE_ERR: -+ urb->error_count++; -+ frame_desc->status = -EOVERFLOW; -+ /* Don't need to update actual_length in this case. */ -+ break; -+ case DWC_OTG_HC_XFER_XACT_ERR: -+ urb->error_count++; -+ frame_desc->status = -EPROTO; -+ frame_desc->actual_length = -+ get_actual_xfer_length(hc, hc_regs, qtd, -+ halt_status, NULL); -+ default: -+ DWC_ERROR("%s: Unhandled _halt_status (%d)\n", __func__, -+ halt_status); -+ BUG(); -+ break; -+ } -+ -+ if (++qtd->isoc_frame_index == urb->number_of_packets) { -+ /* -+ * urb->status is not used for isoc transfers. -+ * The individual frame_desc statuses are used instead. -+ */ -+ dwc_otg_hcd_complete_urb(hcd, urb, 0); -+ ret_val = DWC_OTG_HC_XFER_URB_COMPLETE; -+ } else { -+ ret_val = DWC_OTG_HC_XFER_COMPLETE; -+ } -+ -+ return ret_val; -+} -+ -+/** -+ * Releases a host channel for use by other transfers. Attempts to select and -+ * queue more transactions since at least one host channel is available. -+ * -+ * @param hcd The HCD state structure. -+ * @param hc The host channel to release. -+ * @param qtd The QTD associated with the host channel. This QTD may be freed -+ * if the transfer is complete or an error has occurred. -+ * @param halt_status Reason the channel is being released. This status -+ * determines the actions taken by this function. -+ */ -+static void release_channel(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_qtd_t *qtd, -+ dwc_otg_halt_status_e halt_status) -+{ -+ dwc_otg_transaction_type_e tr_type; -+ int free_qtd; -+ -+ DWC_DEBUGPL(DBG_HCDV, " %s: channel %d, halt_status %d\n", -+ __func__, hc->hc_num, halt_status); -+ -+ switch (halt_status) { -+ case DWC_OTG_HC_XFER_URB_COMPLETE: -+ free_qtd = 1; -+ break; -+ case DWC_OTG_HC_XFER_AHB_ERR: -+ case DWC_OTG_HC_XFER_STALL: -+ case DWC_OTG_HC_XFER_BABBLE_ERR: -+ free_qtd = 1; -+ break; -+ case DWC_OTG_HC_XFER_XACT_ERR: -+ if (qtd->error_count >= 3) { -+ DWC_DEBUGPL(DBG_HCDV, " Complete URB with transaction error\n"); -+ free_qtd = 1; -+ qtd->urb->status = -EPROTO; -+ dwc_otg_hcd_complete_urb(hcd, qtd->urb, -EPROTO); -+ } else { -+ free_qtd = 0; -+ } -+ break; -+ case DWC_OTG_HC_XFER_URB_DEQUEUE: -+ /* -+ * The QTD has already been removed and the QH has been -+ * deactivated. Don't want to do anything except release the -+ * host channel and try to queue more transfers. -+ */ -+ goto cleanup; -+ case DWC_OTG_HC_XFER_NO_HALT_STATUS: -+ DWC_ERROR("%s: No halt_status, channel %d\n", __func__, hc->hc_num); -+ free_qtd = 0; -+ break; -+ default: -+ free_qtd = 0; -+ break; -+ } -+ -+ deactivate_qh(hcd, hc->qh, free_qtd); -+ -+ cleanup: -+ /* -+ * Release the host channel for use by other transfers. The cleanup -+ * function clears the channel interrupt enables and conditions, so -+ * there's no need to clear the Channel Halted interrupt separately. -+ */ -+ dwc_otg_hc_cleanup(hcd->core_if, hc); -+ list_add_tail(&hc->hc_list_entry, &hcd->free_hc_list); -+ -+ switch (hc->ep_type) { -+ case DWC_OTG_EP_TYPE_CONTROL: -+ case DWC_OTG_EP_TYPE_BULK: -+ hcd->non_periodic_channels--; -+ break; -+ -+ default: -+ /* -+ * Don't release reservations for periodic channels here. -+ * That's done when a periodic transfer is descheduled (i.e. -+ * when the QH is removed from the periodic schedule). -+ */ -+ break; -+ } -+ -+ /* Try to queue more transfers now that there's a free channel. */ -+ tr_type = dwc_otg_hcd_select_transactions(hcd); -+ if (tr_type != DWC_OTG_TRANSACTION_NONE) { -+ dwc_otg_hcd_queue_transactions(hcd, tr_type); -+ } -+} -+ -+/** -+ * Halts a host channel. If the channel cannot be halted immediately because -+ * the request queue is full, this function ensures that the FIFO empty -+ * interrupt for the appropriate queue is enabled so that the halt request can -+ * be queued when there is space in the request queue. -+ * -+ * This function may also be called in DMA mode. In that case, the channel is -+ * simply released since the core always halts the channel automatically in -+ * DMA mode. -+ */ -+static void halt_channel(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_qtd_t *qtd, -+ dwc_otg_halt_status_e halt_status) -+{ -+ if (hcd->core_if->dma_enable) { -+ release_channel(hcd, hc, qtd, halt_status); -+ return; -+ } -+ -+ /* Slave mode processing... */ -+ dwc_otg_hc_halt(hcd->core_if, hc, halt_status); -+ -+ if (hc->halt_on_queue) { -+ gintmsk_data_t gintmsk = {.d32 = 0}; -+ dwc_otg_core_global_regs_t *global_regs; -+ global_regs = hcd->core_if->core_global_regs; -+ -+ if (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL || -+ hc->ep_type == DWC_OTG_EP_TYPE_BULK) { -+ /* -+ * Make sure the Non-periodic Tx FIFO empty interrupt -+ * is enabled so that the non-periodic schedule will -+ * be processed. -+ */ -+ gintmsk.b.nptxfempty = 1; -+ dwc_modify_reg32(&global_regs->gintmsk, 0, gintmsk.d32); -+ } else { -+ /* -+ * Move the QH from the periodic queued schedule to -+ * the periodic assigned schedule. This allows the -+ * halt to be queued when the periodic schedule is -+ * processed. -+ */ -+ list_move(&hc->qh->qh_list_entry, -+ &hcd->periodic_sched_assigned); -+ -+ /* -+ * Make sure the Periodic Tx FIFO Empty interrupt is -+ * enabled so that the periodic schedule will be -+ * processed. -+ */ -+ gintmsk.b.ptxfempty = 1; -+ dwc_modify_reg32(&global_regs->gintmsk, 0, gintmsk.d32); -+ } -+ } -+} -+ -+/** -+ * Performs common cleanup for non-periodic transfers after a Transfer -+ * Complete interrupt. This function should be called after any endpoint type -+ * specific handling is finished to release the host channel. -+ */ -+static void complete_non_periodic_xfer(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd, -+ dwc_otg_halt_status_e halt_status) -+{ -+ hcint_data_t hcint; -+ -+ qtd->error_count = 0; -+ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ if (hcint.b.nyet) { -+ /* -+ * Got a NYET on the last transaction of the transfer. This -+ * means that the endpoint should be in the PING state at the -+ * beginning of the next transfer. -+ */ -+ hc->qh->ping_state = 1; -+ clear_hc_int(hc_regs, nyet); -+ } -+ -+ /* -+ * Always halt and release the host channel to make it available for -+ * more transfers. There may still be more phases for a control -+ * transfer or more data packets for a bulk transfer at this point, -+ * but the host channel is still halted. A channel will be reassigned -+ * to the transfer when the non-periodic schedule is processed after -+ * the channel is released. This allows transactions to be queued -+ * properly via dwc_otg_hcd_queue_transactions, which also enables the -+ * Tx FIFO Empty interrupt if necessary. -+ */ -+ if (hc->ep_is_in) { -+ /* -+ * IN transfers in Slave mode require an explicit disable to -+ * halt the channel. (In DMA mode, this call simply releases -+ * the channel.) -+ */ -+ halt_channel(hcd, hc, qtd, halt_status); -+ } else { -+ /* -+ * The channel is automatically disabled by the core for OUT -+ * transfers in Slave mode. -+ */ -+ release_channel(hcd, hc, qtd, halt_status); -+ } -+} -+ -+/** -+ * Performs common cleanup for periodic transfers after a Transfer Complete -+ * interrupt. This function should be called after any endpoint type specific -+ * handling is finished to release the host channel. -+ */ -+static void complete_periodic_xfer(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd, -+ dwc_otg_halt_status_e halt_status) -+{ -+ hctsiz_data_t hctsiz; -+ qtd->error_count = 0; -+ -+ hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); -+ if (!hc->ep_is_in || hctsiz.b.pktcnt == 0) { -+ /* Core halts channel in these cases. */ -+ release_channel(hcd, hc, qtd, halt_status); -+ } else { -+ /* Flush any outstanding requests from the Tx queue. */ -+ halt_channel(hcd, hc, qtd, halt_status); -+ } -+} -+ -+/** -+ * Handles a host channel Transfer Complete interrupt. This handler may be -+ * called in either DMA mode or Slave mode. -+ */ -+static int32_t handle_hc_xfercomp_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ int urb_xfer_done; -+ dwc_otg_halt_status_e halt_status = DWC_OTG_HC_XFER_COMPLETE; -+ struct urb *urb = qtd->urb; -+ int pipe_type = usb_pipetype(urb->pipe); -+ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "Transfer Complete--\n", hc->hc_num); -+ -+ /* -+ * Handle xfer complete on CSPLIT. -+ */ -+ if (hc->qh->do_split) { -+ qtd->complete_split = 0; -+ } -+ -+ /* Update the QTD and URB states. */ -+ switch (pipe_type) { -+ case PIPE_CONTROL: -+ switch (qtd->control_phase) { -+ case DWC_OTG_CONTROL_SETUP: -+ if (urb->transfer_buffer_length > 0) { -+ qtd->control_phase = DWC_OTG_CONTROL_DATA; -+ } else { -+ qtd->control_phase = DWC_OTG_CONTROL_STATUS; -+ } -+ DWC_DEBUGPL(DBG_HCDV, " Control setup transaction done\n"); -+ halt_status = DWC_OTG_HC_XFER_COMPLETE; -+ break; -+ case DWC_OTG_CONTROL_DATA: { -+ urb_xfer_done = update_urb_state_xfer_comp(hc, hc_regs, urb, qtd); -+ if (urb_xfer_done) { -+ qtd->control_phase = DWC_OTG_CONTROL_STATUS; -+ DWC_DEBUGPL(DBG_HCDV, " Control data transfer done\n"); -+ } else { -+ save_data_toggle(hc, hc_regs, qtd); -+ } -+ halt_status = DWC_OTG_HC_XFER_COMPLETE; -+ break; -+ } -+ case DWC_OTG_CONTROL_STATUS: -+ DWC_DEBUGPL(DBG_HCDV, " Control transfer complete\n"); -+ if (urb->status == -EINPROGRESS) { -+ urb->status = 0; -+ } -+ dwc_otg_hcd_complete_urb(hcd, urb, urb->status); -+ halt_status = DWC_OTG_HC_XFER_URB_COMPLETE; -+ break; -+ } -+ -+ complete_non_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status); -+ break; -+ case PIPE_BULK: -+ DWC_DEBUGPL(DBG_HCDV, " Bulk transfer complete\n"); -+ urb_xfer_done = update_urb_state_xfer_comp(hc, hc_regs, urb, qtd); -+ if (urb_xfer_done) { -+ dwc_otg_hcd_complete_urb(hcd, urb, urb->status); -+ halt_status = DWC_OTG_HC_XFER_URB_COMPLETE; -+ } else { -+ halt_status = DWC_OTG_HC_XFER_COMPLETE; -+ } -+ -+ save_data_toggle(hc, hc_regs, qtd); -+ complete_non_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status); -+ break; -+ case PIPE_INTERRUPT: -+ DWC_DEBUGPL(DBG_HCDV, " Interrupt transfer complete\n"); -+ update_urb_state_xfer_comp(hc, hc_regs, urb, qtd); -+ -+ /* -+ * Interrupt URB is done on the first transfer complete -+ * interrupt. -+ */ -+ dwc_otg_hcd_complete_urb(hcd, urb, urb->status); -+ save_data_toggle(hc, hc_regs, qtd); -+ complete_periodic_xfer(hcd, hc, hc_regs, qtd, -+ DWC_OTG_HC_XFER_URB_COMPLETE); -+ break; -+ case PIPE_ISOCHRONOUS: -+ DWC_DEBUGPL(DBG_HCDV, " Isochronous transfer complete\n"); -+ if (qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_ALL) { -+ halt_status = update_isoc_urb_state(hcd, hc, hc_regs, qtd, -+ DWC_OTG_HC_XFER_COMPLETE); -+ } -+ complete_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status); -+ break; -+ } -+ -+ disable_hc_int(hc_regs, xfercompl); -+ -+ return 1; -+} -+ -+/** -+ * Handles a host channel STALL interrupt. This handler may be called in -+ * either DMA mode or Slave mode. -+ */ -+static int32_t handle_hc_stall_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ struct urb *urb = qtd->urb; -+ int pipe_type = usb_pipetype(urb->pipe); -+ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "STALL Received--\n", hc->hc_num); -+ -+ if (pipe_type == PIPE_CONTROL) { -+ dwc_otg_hcd_complete_urb(hcd, urb, -EPIPE); -+ } -+ -+ if (pipe_type == PIPE_BULK || pipe_type == PIPE_INTERRUPT) { -+ dwc_otg_hcd_complete_urb(hcd, urb, -EPIPE); -+ /* -+ * USB protocol requires resetting the data toggle for bulk -+ * and interrupt endpoints when a CLEAR_FEATURE(ENDPOINT_HALT) -+ * setup command is issued to the endpoint. Anticipate the -+ * CLEAR_FEATURE command since a STALL has occurred and reset -+ * the data toggle now. -+ */ -+ hc->qh->data_toggle = 0; -+ } -+ -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_STALL); -+ -+ disable_hc_int(hc_regs, stall); -+ -+ return 1; -+} -+ -+/* -+ * Updates the state of the URB when a transfer has been stopped due to an -+ * abnormal condition before the transfer completes. Modifies the -+ * actual_length field of the URB to reflect the number of bytes that have -+ * actually been transferred via the host channel. -+ */ -+static void update_urb_state_xfer_intr(dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ struct urb *urb, -+ dwc_otg_qtd_t *qtd, -+ dwc_otg_halt_status_e halt_status) -+{ -+ uint32_t bytes_transferred = get_actual_xfer_length(hc, hc_regs, qtd, -+ halt_status, NULL); -+ urb->actual_length += bytes_transferred; -+ -+#ifdef DEBUG -+ { -+ hctsiz_data_t hctsiz; -+ hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); -+ DWC_DEBUGPL(DBG_HCDV, "DWC_otg: %s: %s, channel %d\n", -+ __func__, (hc->ep_is_in ? "IN" : "OUT"), hc->hc_num); -+ DWC_DEBUGPL(DBG_HCDV, " hc->start_pkt_count %d\n", hc->start_pkt_count); -+ DWC_DEBUGPL(DBG_HCDV, " hctsiz.pktcnt %d\n", hctsiz.b.pktcnt); -+ DWC_DEBUGPL(DBG_HCDV, " hc->max_packet %d\n", hc->max_packet); -+ DWC_DEBUGPL(DBG_HCDV, " bytes_transferred %d\n", bytes_transferred); -+ DWC_DEBUGPL(DBG_HCDV, " urb->actual_length %d\n", urb->actual_length); -+ DWC_DEBUGPL(DBG_HCDV, " urb->transfer_buffer_length %d\n", -+ urb->transfer_buffer_length); -+ } -+#endif -+} -+ -+/** -+ * Handles a host channel NAK interrupt. This handler may be called in either -+ * DMA mode or Slave mode. -+ */ -+static int32_t handle_hc_nak_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "NAK Received--\n", hc->hc_num); -+ -+ /* -+ * Handle NAK for IN/OUT SSPLIT/CSPLIT transfers, bulk, control, and -+ * interrupt. Re-start the SSPLIT transfer. -+ */ -+ if (hc->do_split) { -+ if (hc->complete_split) { -+ qtd->error_count = 0; -+ } -+ qtd->complete_split = 0; -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK); -+ goto handle_nak_done; -+ } -+ -+ switch (usb_pipetype(qtd->urb->pipe)) { -+ case PIPE_CONTROL: -+ case PIPE_BULK: -+ if (hcd->core_if->dma_enable && hc->ep_is_in) { -+ /* -+ * NAK interrupts are enabled on bulk/control IN -+ * transfers in DMA mode for the sole purpose of -+ * resetting the error count after a transaction error -+ * occurs. The core will continue transferring data. -+ */ -+ qtd->error_count = 0; -+ goto handle_nak_done; -+ } -+ -+ /* -+ * NAK interrupts normally occur during OUT transfers in DMA -+ * or Slave mode. For IN transfers, more requests will be -+ * queued as request queue space is available. -+ */ -+ qtd->error_count = 0; -+ -+ if (!hc->qh->ping_state) { -+ update_urb_state_xfer_intr(hc, hc_regs, qtd->urb, -+ qtd, DWC_OTG_HC_XFER_NAK); -+ save_data_toggle(hc, hc_regs, qtd); -+ if (qtd->urb->dev->speed == USB_SPEED_HIGH) { -+ hc->qh->ping_state = 1; -+ } -+ } -+ -+ /* -+ * Halt the channel so the transfer can be re-started from -+ * the appropriate point or the PING protocol will -+ * start/continue. -+ */ -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK); -+ break; -+ case PIPE_INTERRUPT: -+ qtd->error_count = 0; -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK); -+ break; -+ case PIPE_ISOCHRONOUS: -+ /* Should never get called for isochronous transfers. */ -+ BUG(); -+ break; -+ } -+ -+ handle_nak_done: -+ disable_hc_int(hc_regs, nak); -+ -+ return 1; -+} -+ -+/** -+ * Handles a host channel ACK interrupt. This interrupt is enabled when -+ * performing the PING protocol in Slave mode, when errors occur during -+ * either Slave mode or DMA mode, and during Start Split transactions. -+ */ -+static int32_t handle_hc_ack_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "ACK Received--\n", hc->hc_num); -+ -+ if (hc->do_split) { -+ /* -+ * Handle ACK on SSPLIT. -+ * ACK should not occur in CSPLIT. -+ */ -+ if (!hc->ep_is_in && hc->data_pid_start != DWC_OTG_HC_PID_SETUP) { -+ qtd->ssplit_out_xfer_count = hc->xfer_len; -+ } -+ if (!(hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in)) { -+ /* Don't need complete for isochronous out transfers. */ -+ qtd->complete_split = 1; -+ } -+ -+ /* ISOC OUT */ -+ if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in) { -+ switch (hc->xact_pos) { -+ case DWC_HCSPLIT_XACTPOS_ALL: -+ break; -+ case DWC_HCSPLIT_XACTPOS_END: -+ qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_ALL; -+ qtd->isoc_split_offset = 0; -+ break; -+ case DWC_HCSPLIT_XACTPOS_BEGIN: -+ case DWC_HCSPLIT_XACTPOS_MID: -+ /* -+ * For BEGIN or MID, calculate the length for -+ * the next microframe to determine the correct -+ * SSPLIT token, either MID or END. -+ */ -+ { -+ struct usb_iso_packet_descriptor *frame_desc; -+ -+ frame_desc = &qtd->urb->iso_frame_desc[qtd->isoc_frame_index]; -+ qtd->isoc_split_offset += 188; -+ -+ if ((frame_desc->length - qtd->isoc_split_offset) <= 188) { -+ qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_END; -+ } else { -+ qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_MID; -+ } -+ -+ } -+ break; -+ } -+ } else { -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_ACK); -+ } -+ } else { -+ qtd->error_count = 0; -+ -+ if (hc->qh->ping_state) { -+ hc->qh->ping_state = 0; -+ /* -+ * Halt the channel so the transfer can be re-started -+ * from the appropriate point. This only happens in -+ * Slave mode. In DMA mode, the ping_state is cleared -+ * when the transfer is started because the core -+ * automatically executes the PING, then the transfer. -+ */ -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_ACK); -+ } -+ } -+ -+ /* -+ * If the ACK occurred when _not_ in the PING state, let the channel -+ * continue transferring data after clearing the error count. -+ */ -+ -+ disable_hc_int(hc_regs, ack); -+ -+ return 1; -+} -+ -+/** -+ * Handles a host channel NYET interrupt. This interrupt should only occur on -+ * Bulk and Control OUT endpoints and for complete split transactions. If a -+ * NYET occurs at the same time as a Transfer Complete interrupt, it is -+ * handled in the xfercomp interrupt handler, not here. This handler may be -+ * called in either DMA mode or Slave mode. -+ */ -+static int32_t handle_hc_nyet_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "NYET Received--\n", hc->hc_num); -+ -+ /* -+ * NYET on CSPLIT -+ * re-do the CSPLIT immediately on non-periodic -+ */ -+ if (hc->do_split && hc->complete_split) { -+ if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || -+ hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { -+ int frnum = dwc_otg_hcd_get_frame_number(dwc_otg_hcd_to_hcd(hcd)); -+ -+ if (dwc_full_frame_num(frnum) != -+ dwc_full_frame_num(hc->qh->sched_frame)) { -+ /* -+ * No longer in the same full speed frame. -+ * Treat this as a transaction error. -+ */ -+#if 0 -+ /** @todo Fix system performance so this can -+ * be treated as an error. Right now complete -+ * splits cannot be scheduled precisely enough -+ * due to other system activity, so this error -+ * occurs regularly in Slave mode. -+ */ -+ qtd->error_count++; -+#endif -+ qtd->complete_split = 0; -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); -+ /** @todo add support for isoc release */ -+ goto handle_nyet_done; -+ } -+ } -+ -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NYET); -+ goto handle_nyet_done; -+ } -+ -+ hc->qh->ping_state = 1; -+ qtd->error_count = 0; -+ -+ update_urb_state_xfer_intr(hc, hc_regs, qtd->urb, qtd, -+ DWC_OTG_HC_XFER_NYET); -+ save_data_toggle(hc, hc_regs, qtd); -+ -+ /* -+ * Halt the channel and re-start the transfer so the PING -+ * protocol will start. -+ */ -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NYET); -+ -+handle_nyet_done: -+ disable_hc_int(hc_regs, nyet); -+ return 1; -+} -+ -+/** -+ * Handles a host channel babble interrupt. This handler may be called in -+ * either DMA mode or Slave mode. -+ */ -+static int32_t handle_hc_babble_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "Babble Error--\n", hc->hc_num); -+ if (hc->ep_type != DWC_OTG_EP_TYPE_ISOC) { -+ dwc_otg_hcd_complete_urb(hcd, qtd->urb, -EOVERFLOW); -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_BABBLE_ERR); -+ } else { -+ dwc_otg_halt_status_e halt_status; -+ halt_status = update_isoc_urb_state(hcd, hc, hc_regs, qtd, -+ DWC_OTG_HC_XFER_BABBLE_ERR); -+ halt_channel(hcd, hc, qtd, halt_status); -+ } -+ disable_hc_int(hc_regs, bblerr); -+ return 1; -+} -+ -+/** -+ * Handles a host channel AHB error interrupt. This handler is only called in -+ * DMA mode. -+ */ -+static int32_t handle_hc_ahberr_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ hcchar_data_t hcchar; -+ hcsplt_data_t hcsplt; -+ hctsiz_data_t hctsiz; -+ uint32_t hcdma; -+ struct urb *urb = qtd->urb; -+ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "AHB Error--\n", hc->hc_num); -+ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hcsplt.d32 = dwc_read_reg32(&hc_regs->hcsplt); -+ hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); -+ hcdma = dwc_read_reg32(&hc_regs->hcdma); -+ -+ DWC_ERROR("AHB ERROR, Channel %d\n", hc->hc_num); -+ DWC_ERROR(" hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32, hcsplt.d32); -+ DWC_ERROR(" hctsiz 0x%08x, hcdma 0x%08x\n", hctsiz.d32, hcdma); -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Enqueue\n"); -+ DWC_ERROR(" Device address: %d\n", usb_pipedevice(urb->pipe)); -+ DWC_ERROR(" Endpoint: %d, %s\n", usb_pipeendpoint(urb->pipe), -+ (usb_pipein(urb->pipe) ? "IN" : "OUT")); -+ DWC_ERROR(" Endpoint type: %s\n", -+ ({char *pipetype; -+ switch (usb_pipetype(urb->pipe)) { -+ case PIPE_CONTROL: pipetype = "CONTROL"; break; -+ case PIPE_BULK: pipetype = "BULK"; break; -+ case PIPE_INTERRUPT: pipetype = "INTERRUPT"; break; -+ case PIPE_ISOCHRONOUS: pipetype = "ISOCHRONOUS"; break; -+ default: pipetype = "UNKNOWN"; break; -+ }; pipetype;})); -+ DWC_ERROR(" Speed: %s\n", -+ ({char *speed; -+ switch (urb->dev->speed) { -+ case USB_SPEED_HIGH: speed = "HIGH"; break; -+ case USB_SPEED_FULL: speed = "FULL"; break; -+ case USB_SPEED_LOW: speed = "LOW"; break; -+ default: speed = "UNKNOWN"; break; -+ }; speed;})); -+ DWC_ERROR(" Max packet size: %d\n", -+ usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))); -+ DWC_ERROR(" Data buffer length: %d\n", urb->transfer_buffer_length); -+ DWC_ERROR(" Transfer buffer: %p, Transfer DMA: %p\n", -+ urb->transfer_buffer, (void *)urb->transfer_dma); -+ DWC_ERROR(" Setup buffer: %p, Setup DMA: %p\n", -+ urb->setup_packet, (void *)urb->setup_dma); -+ DWC_ERROR(" Interval: %d\n", urb->interval); -+ -+ dwc_otg_hcd_complete_urb(hcd, urb, -EIO); -+ -+ /* -+ * Force a channel halt. Don't call halt_channel because that won't -+ * write to the HCCHARn register in DMA mode to force the halt. -+ */ -+ dwc_otg_hc_halt(hcd->core_if, hc, DWC_OTG_HC_XFER_AHB_ERR); -+ -+ disable_hc_int(hc_regs, ahberr); -+ return 1; -+} -+ -+/** -+ * Handles a host channel transaction error interrupt. This handler may be -+ * called in either DMA mode or Slave mode. -+ */ -+static int32_t handle_hc_xacterr_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "Transaction Error--\n", hc->hc_num); -+ -+ switch (usb_pipetype(qtd->urb->pipe)) { -+ case PIPE_CONTROL: -+ case PIPE_BULK: -+ qtd->error_count++; -+ if (!hc->qh->ping_state) { -+ update_urb_state_xfer_intr(hc, hc_regs, qtd->urb, -+ qtd, DWC_OTG_HC_XFER_XACT_ERR); -+ save_data_toggle(hc, hc_regs, qtd); -+ if (!hc->ep_is_in && qtd->urb->dev->speed == USB_SPEED_HIGH) { -+ hc->qh->ping_state = 1; -+ } -+ } -+ -+ /* -+ * Halt the channel so the transfer can be re-started from -+ * the appropriate point or the PING protocol will start. -+ */ -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); -+ break; -+ case PIPE_INTERRUPT: -+ qtd->error_count++; -+ if (hc->do_split && hc->complete_split) { -+ qtd->complete_split = 0; -+ } -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); -+ break; -+ case PIPE_ISOCHRONOUS: -+ { -+ dwc_otg_halt_status_e halt_status; -+ halt_status = update_isoc_urb_state(hcd, hc, hc_regs, qtd, -+ DWC_OTG_HC_XFER_XACT_ERR); -+ -+ halt_channel(hcd, hc, qtd, halt_status); -+ } -+ break; -+ } -+ -+ disable_hc_int(hc_regs, xacterr); -+ -+ return 1; -+} -+ -+/** -+ * Handles a host channel frame overrun interrupt. This handler may be called -+ * in either DMA mode or Slave mode. -+ */ -+static int32_t handle_hc_frmovrun_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "Frame Overrun--\n", hc->hc_num); -+ -+ switch (usb_pipetype(qtd->urb->pipe)) { -+ case PIPE_CONTROL: -+ case PIPE_BULK: -+ break; -+ case PIPE_INTERRUPT: -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_FRAME_OVERRUN); -+ break; -+ case PIPE_ISOCHRONOUS: -+ { -+ dwc_otg_halt_status_e halt_status; -+ halt_status = update_isoc_urb_state(hcd, hc, hc_regs, qtd, -+ DWC_OTG_HC_XFER_FRAME_OVERRUN); -+ -+ halt_channel(hcd, hc, qtd, halt_status); -+ } -+ break; -+ } -+ -+ disable_hc_int(hc_regs, frmovrun); -+ -+ return 1; -+} -+ -+/** -+ * Handles a host channel data toggle error interrupt. This handler may be -+ * called in either DMA mode or Slave mode. -+ */ -+static int32_t handle_hc_datatglerr_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "Data Toggle Error--\n", hc->hc_num); -+ -+ if (hc->ep_is_in) { -+ qtd->error_count = 0; -+ } else { -+ DWC_ERROR("Data Toggle Error on OUT transfer," -+ "channel %d\n", hc->hc_num); -+ } -+ -+ disable_hc_int(hc_regs, datatglerr); -+ -+ return 1; -+} -+ -+#ifdef DEBUG -+/** -+ * This function is for debug only. It checks that a valid halt status is set -+ * and that HCCHARn.chdis is clear. If there's a problem, corrective action is -+ * taken and a warning is issued. -+ * @return 1 if halt status is ok, 0 otherwise. -+ */ -+static inline int halt_status_ok(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ hcchar_data_t hcchar; -+ hctsiz_data_t hctsiz; -+ hcint_data_t hcint; -+ hcintmsk_data_t hcintmsk; -+ hcsplt_data_t hcsplt; -+ -+ if (hc->halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS) { -+ /* -+ * This code is here only as a check. This condition should -+ * never happen. Ignore the halt if it does occur. -+ */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz); -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ hcintmsk.d32 = dwc_read_reg32(&hc_regs->hcintmsk); -+ hcsplt.d32 = dwc_read_reg32(&hc_regs->hcsplt); -+ DWC_WARN("%s: hc->halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS, " -+ "channel %d, hcchar 0x%08x, hctsiz 0x%08x, " -+ "hcint 0x%08x, hcintmsk 0x%08x, " -+ "hcsplt 0x%08x, qtd->complete_split %d\n", -+ __func__, hc->hc_num, hcchar.d32, hctsiz.d32, -+ hcint.d32, hcintmsk.d32, -+ hcsplt.d32, qtd->complete_split); -+ -+ DWC_WARN("%s: no halt status, channel %d, ignoring interrupt\n", -+ __func__, hc->hc_num); -+ DWC_WARN("\n"); -+ clear_hc_int(hc_regs, chhltd); -+ return 0; -+ } -+ -+ /* -+ * This code is here only as a check. hcchar.chdis should -+ * never be set when the halt interrupt occurs. Halt the -+ * channel again if it does occur. -+ */ -+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); -+ if (hcchar.b.chdis) { -+ DWC_WARN("%s: hcchar.chdis set unexpectedly, " -+ "hcchar 0x%08x, trying to halt again\n", -+ __func__, hcchar.d32); -+ clear_hc_int(hc_regs, chhltd); -+ hc->halt_pending = 0; -+ halt_channel(hcd, hc, qtd, hc->halt_status); -+ return 0; -+ } -+ -+ return 1; -+} -+#endif -+ -+/** -+ * Handles a host Channel Halted interrupt in DMA mode. This handler -+ * determines the reason the channel halted and proceeds accordingly. -+ */ -+static void handle_hc_chhltd_intr_dma(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ hcint_data_t hcint; -+ hcintmsk_data_t hcintmsk; -+ int out_nak_enh = 0; -+ -+ /* For core with OUT NAK enhancement, the flow for high- -+ * speed CONTROL/BULK OUT is handled a little differently. -+ */ -+ if (hcd->core_if->snpsid >= 0x4F54271A) { -+ if (hc->speed == DWC_OTG_EP_SPEED_HIGH && !hc->ep_is_in && -+ (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL || -+ hc->ep_type == DWC_OTG_EP_TYPE_BULK)) { -+ DWC_DEBUGPL(DBG_HCD, "OUT NAK enhancement enabled\n"); -+ out_nak_enh = 1; -+ } else { -+ DWC_DEBUGPL(DBG_HCD, "OUT NAK enhancement disabled, not HS Ctrl/Bulk OUT EP\n"); -+ } -+ } else { -+ DWC_DEBUGPL(DBG_HCD, "OUT NAK enhancement disabled, no core support\n"); -+ } -+ -+ if (hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE || -+ hc->halt_status == DWC_OTG_HC_XFER_AHB_ERR) { -+ /* -+ * Just release the channel. A dequeue can happen on a -+ * transfer timeout. In the case of an AHB Error, the channel -+ * was forced to halt because there's no way to gracefully -+ * recover. -+ */ -+ release_channel(hcd, hc, qtd, hc->halt_status); -+ return; -+ } -+ -+ /* Read the HCINTn register to determine the cause for the halt. */ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ hcintmsk.d32 = dwc_read_reg32(&hc_regs->hcintmsk); -+ -+ if (hcint.b.xfercomp) { -+ /** @todo This is here because of a possible hardware bug. Spec -+ * says that on SPLIT-ISOC OUT transfers in DMA mode that a HALT -+ * interrupt w/ACK bit set should occur, but I only see the -+ * XFERCOMP bit, even with it masked out. This is a workaround -+ * for that behavior. Should fix this when hardware is fixed. -+ */ -+ if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in) { -+ handle_hc_ack_intr(hcd, hc, hc_regs, qtd); -+ } -+ handle_hc_xfercomp_intr(hcd, hc, hc_regs, qtd); -+ } else if (hcint.b.stall) { -+ handle_hc_stall_intr(hcd, hc, hc_regs, qtd); -+ } else if (hcint.b.xacterr) { -+ if (out_nak_enh) { -+ if (hcint.b.nyet || hcint.b.nak || hcint.b.ack) { -+ printk(KERN_DEBUG "XactErr with NYET/NAK/ACK\n"); -+ qtd->error_count = 0; -+ } else { -+ printk(KERN_DEBUG "XactErr without NYET/NAK/ACK\n"); -+ } -+ } -+ -+ /* -+ * Must handle xacterr before nak or ack. Could get a xacterr -+ * at the same time as either of these on a BULK/CONTROL OUT -+ * that started with a PING. The xacterr takes precedence. -+ */ -+ handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd); -+ } else if (!out_nak_enh) { -+ if (hcint.b.nyet) { -+ /* -+ * Must handle nyet before nak or ack. Could get a nyet at the -+ * same time as either of those on a BULK/CONTROL OUT that -+ * started with a PING. The nyet takes precedence. -+ */ -+ handle_hc_nyet_intr(hcd, hc, hc_regs, qtd); -+ } else if (hcint.b.bblerr) { -+ handle_hc_babble_intr(hcd, hc, hc_regs, qtd); -+ } else if (hcint.b.frmovrun) { -+ handle_hc_frmovrun_intr(hcd, hc, hc_regs, qtd); -+ } else if (hcint.b.nak && !hcintmsk.b.nak) { -+ /* -+ * If nak is not masked, it's because a non-split IN transfer -+ * is in an error state. In that case, the nak is handled by -+ * the nak interrupt handler, not here. Handle nak here for -+ * BULK/CONTROL OUT transfers, which halt on a NAK to allow -+ * rewinding the buffer pointer. -+ */ -+ handle_hc_nak_intr(hcd, hc, hc_regs, qtd); -+ } else if (hcint.b.ack && !hcintmsk.b.ack) { -+ /* -+ * If ack is not masked, it's because a non-split IN transfer -+ * is in an error state. In that case, the ack is handled by -+ * the ack interrupt handler, not here. Handle ack here for -+ * split transfers. Start splits halt on ACK. -+ */ -+ handle_hc_ack_intr(hcd, hc, hc_regs, qtd); -+ } else { -+ if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || -+ hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { -+ /* -+ * A periodic transfer halted with no other channel -+ * interrupts set. Assume it was halted by the core -+ * because it could not be completed in its scheduled -+ * (micro)frame. -+ */ -+#ifdef DEBUG -+ DWC_PRINT("%s: Halt channel %d (assume incomplete periodic transfer)\n", -+ __func__, hc->hc_num); -+#endif -+ halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE); -+ } else { -+ DWC_ERROR("%s: Channel %d, DMA Mode -- ChHltd set, but reason " -+ "for halting is unknown, hcint 0x%08x, intsts 0x%08x\n", -+ __func__, hc->hc_num, hcint.d32, -+ dwc_read_reg32(&hcd->core_if->core_global_regs->gintsts)); -+ } -+ } -+ } else { -+ printk(KERN_DEBUG "NYET/NAK/ACK/other in non-error case, 0x%08x\n", hcint.d32); -+ } -+} -+ -+/** -+ * Handles a host channel Channel Halted interrupt. -+ * -+ * In slave mode, this handler is called only when the driver specifically -+ * requests a halt. This occurs during handling other host channel interrupts -+ * (e.g. nak, xacterr, stall, nyet, etc.). -+ * -+ * In DMA mode, this is the interrupt that occurs when the core has finished -+ * processing a transfer on a channel. Other host channel interrupts (except -+ * ahberr) are disabled in DMA mode. -+ */ -+static int32_t handle_hc_chhltd_intr(dwc_otg_hcd_t *hcd, -+ dwc_hc_t *hc, -+ dwc_otg_hc_regs_t *hc_regs, -+ dwc_otg_qtd_t *qtd) -+{ -+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " -+ "Channel Halted--\n", hc->hc_num); -+ -+ if (hcd->core_if->dma_enable) { -+ handle_hc_chhltd_intr_dma(hcd, hc, hc_regs, qtd); -+ } else { -+#ifdef DEBUG -+ if (!halt_status_ok(hcd, hc, hc_regs, qtd)) { -+ return 1; -+ } -+#endif -+ release_channel(hcd, hc, qtd, hc->halt_status); -+ } -+ -+ return 1; -+} -+ -+/** Handles interrupt for a specific Host Channel */ -+int32_t dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd_t *dwc_otg_hcd, uint32_t num) -+{ -+ int retval = 0; -+ hcint_data_t hcint; -+ hcintmsk_data_t hcintmsk; -+ dwc_hc_t *hc; -+ dwc_otg_hc_regs_t *hc_regs; -+ dwc_otg_qtd_t *qtd; -+ -+ DWC_DEBUGPL(DBG_HCDV, "--Host Channel Interrupt--, Channel %d\n", num); -+ -+ hc = dwc_otg_hcd->hc_ptr_array[num]; -+ hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[num]; -+ qtd = list_entry(hc->qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); -+ -+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint); -+ hcintmsk.d32 = dwc_read_reg32(&hc_regs->hcintmsk); -+ DWC_DEBUGPL(DBG_HCDV, " hcint 0x%08x, hcintmsk 0x%08x, hcint&hcintmsk 0x%08x\n", -+ hcint.d32, hcintmsk.d32, (hcint.d32 & hcintmsk.d32)); -+ hcint.d32 = hcint.d32 & hcintmsk.d32; -+ -+ if (!dwc_otg_hcd->core_if->dma_enable) { -+ if (hcint.b.chhltd && hcint.d32 != 0x2) { -+ hcint.b.chhltd = 0; -+ } -+ } -+ -+ if (hcint.b.xfercomp) { -+ retval |= handle_hc_xfercomp_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ /* -+ * If NYET occurred at same time as Xfer Complete, the NYET is -+ * handled by the Xfer Complete interrupt handler. Don't want -+ * to call the NYET interrupt handler in this case. -+ */ -+ hcint.b.nyet = 0; -+ } -+ if (hcint.b.chhltd) { -+ retval |= handle_hc_chhltd_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ } -+ if (hcint.b.ahberr) { -+ retval |= handle_hc_ahberr_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ } -+ if (hcint.b.stall) { -+ retval |= handle_hc_stall_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ } -+ if (hcint.b.nak) { -+ retval |= handle_hc_nak_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ } -+ if (hcint.b.ack) { -+ retval |= handle_hc_ack_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ } -+ if (hcint.b.nyet) { -+ retval |= handle_hc_nyet_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ } -+ if (hcint.b.xacterr) { -+ retval |= handle_hc_xacterr_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ } -+ if (hcint.b.bblerr) { -+ retval |= handle_hc_babble_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ } -+ if (hcint.b.frmovrun) { -+ retval |= handle_hc_frmovrun_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ } -+ if (hcint.b.datatglerr) { -+ retval |= handle_hc_datatglerr_intr(dwc_otg_hcd, hc, hc_regs, qtd); -+ } -+ -+ return retval; -+} -+ -+#endif /* DWC_DEVICE_ONLY */ ---- /dev/null -+++ b/drivers/usb/dwc/otg_hcd_queue.c -@@ -0,0 +1,794 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_queue.c $ -+ * $Revision: #33 $ -+ * $Date: 2008/07/15 $ -+ * $Change: 1064918 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+#ifndef DWC_DEVICE_ONLY -+ -+/** -+ * @file -+ * -+ * This file contains the functions to manage Queue Heads and Queue -+ * Transfer Descriptors. -+ */ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/init.h> -+#include <linux/device.h> -+#include <linux/errno.h> -+#include <linux/list.h> -+#include <linux/interrupt.h> -+#include <linux/string.h> -+#include <linux/version.h> -+ -+#include <mach/irqs.h> -+ -+#include "otg_driver.h" -+#include "otg_hcd.h" -+#include "otg_regs.h" -+ -+/** -+ * This function allocates and initializes a QH. -+ * -+ * @param hcd The HCD state structure for the DWC OTG controller. -+ * @param[in] urb Holds the information about the device/endpoint that we need -+ * to initialize the QH. -+ * -+ * @return Returns pointer to the newly allocated QH, or NULL on error. */ -+dwc_otg_qh_t *dwc_otg_hcd_qh_create (dwc_otg_hcd_t *hcd, struct urb *urb) -+{ -+ dwc_otg_qh_t *qh; -+ -+ /* Allocate memory */ -+ /** @todo add memflags argument */ -+ qh = dwc_otg_hcd_qh_alloc (); -+ if (qh == NULL) { -+ return NULL; -+ } -+ -+ dwc_otg_hcd_qh_init (hcd, qh, urb); -+ return qh; -+} -+ -+/** Free each QTD in the QH's QTD-list then free the QH. QH should already be -+ * removed from a list. QTD list should already be empty if called from URB -+ * Dequeue. -+ * -+ * @param[in] hcd HCD instance. -+ * @param[in] qh The QH to free. -+ */ -+void dwc_otg_hcd_qh_free (dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) -+{ -+ dwc_otg_qtd_t *qtd; -+ struct list_head *pos; -+ //unsigned long flags; -+ -+ /* Free each QTD in the QTD list */ -+ -+#ifdef CONFIG_SMP -+ //the spinlock is locked before this function get called, -+ //but in case the lock is needed, the check function is preserved -+ -+ //but in non-SMP mode, all spinlock is lockable. -+ //don't do the test in non-SMP mode -+ -+ if(spin_trylock(&hcd->lock)) { -+ printk("%s: It is not supposed to be lockable!!\n",__func__); -+ BUG(); -+ } -+#endif -+// SPIN_LOCK_IRQSAVE(&hcd->lock, flags) -+ for (pos = qh->qtd_list.next; -+ pos != &qh->qtd_list; -+ pos = qh->qtd_list.next) -+ { -+ list_del (pos); -+ qtd = dwc_list_to_qtd (pos); -+ dwc_otg_hcd_qtd_free (qtd); -+ } -+// SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags) -+ -+ kfree (qh); -+ return; -+} -+ -+/** Initializes a QH structure. -+ * -+ * @param[in] hcd The HCD state structure for the DWC OTG controller. -+ * @param[in] qh The QH to init. -+ * @param[in] urb Holds the information about the device/endpoint that we need -+ * to initialize the QH. */ -+#define SCHEDULE_SLOP 10 -+void dwc_otg_hcd_qh_init(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, struct urb *urb) -+{ -+ char *speed, *type; -+ memset (qh, 0, sizeof (dwc_otg_qh_t)); -+ -+ /* Initialize QH */ -+ switch (usb_pipetype(urb->pipe)) { -+ case PIPE_CONTROL: -+ qh->ep_type = USB_ENDPOINT_XFER_CONTROL; -+ break; -+ case PIPE_BULK: -+ qh->ep_type = USB_ENDPOINT_XFER_BULK; -+ break; -+ case PIPE_ISOCHRONOUS: -+ qh->ep_type = USB_ENDPOINT_XFER_ISOC; -+ break; -+ case PIPE_INTERRUPT: -+ qh->ep_type = USB_ENDPOINT_XFER_INT; -+ break; -+ } -+ -+ qh->ep_is_in = usb_pipein(urb->pipe) ? 1 : 0; -+ -+ qh->data_toggle = DWC_OTG_HC_PID_DATA0; -+ qh->maxp = usb_maxpacket(urb->dev, urb->pipe, !(usb_pipein(urb->pipe))); -+ INIT_LIST_HEAD(&qh->qtd_list); -+ INIT_LIST_HEAD(&qh->qh_list_entry); -+ qh->channel = NULL; -+ qh->speed = urb->dev->speed; -+ -+ /* FS/LS Enpoint on HS Hub -+ * NOT virtual root hub */ -+ qh->do_split = 0; -+ if (((urb->dev->speed == USB_SPEED_LOW) || -+ (urb->dev->speed == USB_SPEED_FULL)) && -+ (urb->dev->tt) && (urb->dev->tt->hub) && (urb->dev->tt->hub->devnum != 1)) -+ { -+ DWC_DEBUGPL(DBG_HCD, "QH init: EP %d: TT found at hub addr %d, for port %d\n", -+ usb_pipeendpoint(urb->pipe), urb->dev->tt->hub->devnum, -+ urb->dev->ttport); -+ qh->do_split = 1; -+ } -+ -+ if (qh->ep_type == USB_ENDPOINT_XFER_INT || -+ qh->ep_type == USB_ENDPOINT_XFER_ISOC) { -+ /* Compute scheduling parameters once and save them. */ -+ hprt0_data_t hprt; -+ -+ /** @todo Account for split transfers in the bus time. */ -+ int bytecount = dwc_hb_mult(qh->maxp) * dwc_max_packet(qh->maxp); -+ qh->usecs = NS_TO_US(usb_calc_bus_time(urb->dev->speed, -+ usb_pipein(urb->pipe), -+ (qh->ep_type == USB_ENDPOINT_XFER_ISOC), -+ bytecount)); -+ -+ /* Start in a slightly future (micro)frame. */ -+ qh->sched_frame = dwc_frame_num_inc(hcd->frame_number, -+ SCHEDULE_SLOP); -+ qh->interval = urb->interval; -+#if 0 -+ /* Increase interrupt polling rate for debugging. */ -+ if (qh->ep_type == USB_ENDPOINT_XFER_INT) { -+ qh->interval = 8; -+ } -+#endif -+ hprt.d32 = dwc_read_reg32(hcd->core_if->host_if->hprt0); -+ if ((hprt.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) && -+ ((urb->dev->speed == USB_SPEED_LOW) || -+ (urb->dev->speed == USB_SPEED_FULL))) { -+ qh->interval *= 8; -+ qh->sched_frame |= 0x7; -+ qh->start_split_frame = qh->sched_frame; -+ } -+ -+ } -+ -+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD QH Initialized\n"); -+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - qh = %p\n", qh); -+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Device Address = %d\n", -+ urb->dev->devnum); -+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Endpoint %d, %s\n", -+ usb_pipeendpoint(urb->pipe), -+ usb_pipein(urb->pipe) == USB_DIR_IN ? "IN" : "OUT"); -+ -+ switch(urb->dev->speed) { -+ case USB_SPEED_LOW: -+ speed = "low"; -+ break; -+ case USB_SPEED_FULL: -+ speed = "full"; -+ break; -+ case USB_SPEED_HIGH: -+ speed = "high"; -+ break; -+ default: -+ speed = "?"; -+ break; -+ } -+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Speed = %s\n", speed); -+ -+ switch (qh->ep_type) { -+ case USB_ENDPOINT_XFER_ISOC: -+ type = "isochronous"; -+ break; -+ case USB_ENDPOINT_XFER_INT: -+ type = "interrupt"; -+ break; -+ case USB_ENDPOINT_XFER_CONTROL: -+ type = "control"; -+ break; -+ case USB_ENDPOINT_XFER_BULK: -+ type = "bulk"; -+ break; -+ default: -+ type = "?"; -+ break; -+ } -+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Type = %s\n",type); -+ -+#ifdef DEBUG -+ if (qh->ep_type == USB_ENDPOINT_XFER_INT) { -+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - usecs = %d\n", -+ qh->usecs); -+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - interval = %d\n", -+ qh->interval); -+ } -+#endif -+ -+ return; -+} -+ -+/** -+ * Microframe scheduler -+ * track the total use in hcd->frame_usecs -+ * keep each qh use in qh->frame_usecs -+ * when surrendering the qh then donate the time back -+ */ -+static const u16 max_uframe_usecs[] = { 100, 100, 100, 100, 100, 100, 30, 0 }; -+ -+/* -+ * called from dwc_otg_hcd.c:dwc_otg_hcd_init -+ */ -+int init_hcd_usecs(dwc_otg_hcd_t *hcd) -+{ -+ int i; -+ -+ for (i = 0; i < 8; i++) -+ hcd->frame_usecs[i] = max_uframe_usecs[i]; -+ -+ return 0; -+} -+ -+static int find_single_uframe(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) -+{ -+ int i; -+ u16 utime; -+ int t_left; -+ int ret; -+ int done; -+ -+ ret = -1; -+ utime = qh->usecs; -+ t_left = utime; -+ i = 0; -+ done = 0; -+ while (done == 0) { -+ /* At the start hcd->frame_usecs[i] = max_uframe_usecs[i]; */ -+ if (utime <= hcd->frame_usecs[i]) { -+ hcd->frame_usecs[i] -= utime; -+ qh->frame_usecs[i] += utime; -+ t_left -= utime; -+ ret = i; -+ done = 1; -+ return ret; -+ } else { -+ i++; -+ if (i == 8) { -+ done = 1; -+ ret = -1; -+ } -+ } -+ } -+ return ret; -+} -+ -+/* -+ * use this for FS apps that can span multiple uframes -+ */ -+static int find_multi_uframe(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) -+{ -+ int i; -+ int j; -+ u16 utime; -+ int t_left; -+ int ret; -+ int done; -+ u16 xtime; -+ -+ ret = -1; -+ utime = qh->usecs; -+ t_left = utime; -+ i = 0; -+ done = 0; -+loop: -+ while (done == 0) { -+ if (hcd->frame_usecs[i] <= 0) { -+ i++; -+ if (i == 8) { -+ done = 1; -+ ret = -1; -+ } -+ goto loop; -+ } -+ -+ /* -+ * We need n consequtive slots so use j as a start slot. -+ * j plus j+1 must be enough time (for now) -+ */ -+ xtime = hcd->frame_usecs[i]; -+ for (j = i + 1; j < 8; j++) { -+ /* -+ * if we add this frame remaining time to xtime we may -+ * be OK, if not we need to test j for a complete frame. -+ */ -+ if ((xtime + hcd->frame_usecs[j]) < utime) { -+ if (hcd->frame_usecs[j] < max_uframe_usecs[j]) { -+ j = 8; -+ ret = -1; -+ continue; -+ } -+ } -+ if (xtime >= utime) { -+ ret = i; -+ j = 8; /* stop loop with a good value ret */ -+ continue; -+ } -+ /* add the frame time to x time */ -+ xtime += hcd->frame_usecs[j]; -+ /* we must have a fully available next frame or break */ -+ if ((xtime < utime) && -+ (hcd->frame_usecs[j] == max_uframe_usecs[j])) { -+ ret = -1; -+ j = 8; /* stop loop with a bad value ret */ -+ continue; -+ } -+ } -+ if (ret >= 0) { -+ t_left = utime; -+ for (j = i; (t_left > 0) && (j < 8); j++) { -+ t_left -= hcd->frame_usecs[j]; -+ if (t_left <= 0) { -+ qh->frame_usecs[j] += -+ hcd->frame_usecs[j] + t_left; -+ hcd->frame_usecs[j] = -t_left; -+ ret = i; -+ done = 1; -+ } else { -+ qh->frame_usecs[j] += -+ hcd->frame_usecs[j]; -+ hcd->frame_usecs[j] = 0; -+ } -+ } -+ } else { -+ i++; -+ if (i == 8) { -+ done = 1; -+ ret = -1; -+ } -+ } -+ } -+ return ret; -+} -+ -+static int find_uframe(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) -+{ -+ int ret = -1; -+ -+ if (qh->speed == USB_SPEED_HIGH) -+ /* if this is a hs transaction we need a full frame */ -+ ret = find_single_uframe(hcd, qh); -+ else -+ /* FS transaction may need a sequence of frames */ -+ ret = find_multi_uframe(hcd, qh); -+ -+ return ret; -+} -+ -+/** -+ * Checks that the max transfer size allowed in a host channel is large enough -+ * to handle the maximum data transfer in a single (micro)frame for a periodic -+ * transfer. -+ * -+ * @param hcd The HCD state structure for the DWC OTG controller. -+ * @param qh QH for a periodic endpoint. -+ * -+ * @return 0 if successful, negative error code otherwise. -+ */ -+static int check_max_xfer_size(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) -+{ -+ int status; -+ uint32_t max_xfer_size; -+ uint32_t max_channel_xfer_size; -+ -+ status = 0; -+ -+ max_xfer_size = dwc_max_packet(qh->maxp) * dwc_hb_mult(qh->maxp); -+ max_channel_xfer_size = hcd->core_if->core_params->max_transfer_size; -+ -+ if (max_xfer_size > max_channel_xfer_size) { -+ DWC_NOTICE("%s: Periodic xfer length %d > " -+ "max xfer length for channel %d\n", -+ __func__, max_xfer_size, max_channel_xfer_size); -+ status = -ENOSPC; -+ } -+ -+ return status; -+} -+ -+/** -+ * Schedules an interrupt or isochronous transfer in the periodic schedule. -+ */ -+static int schedule_periodic(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) -+{ -+ int status; -+ struct usb_bus *bus = hcd_to_bus(dwc_otg_hcd_to_hcd(hcd)); -+ int frame; -+ -+ status = find_uframe(hcd, qh); -+ frame = -1; -+ if (status == 0) { -+ frame = 7; -+ } else { -+ if (status > 0) -+ frame = status - 1; -+ } -+ /* Set the new frame up */ -+ if (frame > -1) { -+ qh->sched_frame &= ~0x7; -+ qh->sched_frame |= (frame & 7); -+ } -+ if (status != -1) -+ status = 0; -+ if (status) { -+ pr_notice("%s: Insufficient periodic bandwidth for " -+ "periodic transfer.\n", __func__); -+ return status; -+ } -+ status = check_max_xfer_size(hcd, qh); -+ if (status) { -+ pr_notice("%s: Channel max transfer size too small " -+ "for periodic transfer.\n", __func__); -+ return status; -+ } -+ /* Always start in the inactive schedule. */ -+ list_add_tail(&qh->qh_list_entry, &hcd->periodic_sched_inactive); -+ -+ /* Update claimed usecs per (micro)frame. */ -+ hcd->periodic_usecs += qh->usecs; -+ -+ /* -+ * Update average periodic bandwidth claimed and # periodic reqs for -+ * usbfs. -+ */ -+ bus->bandwidth_allocated += qh->usecs / qh->interval; -+ -+ if (qh->ep_type == USB_ENDPOINT_XFER_INT) -+ bus->bandwidth_int_reqs++; -+ else -+ bus->bandwidth_isoc_reqs++; -+ -+ return status; -+} -+ -+/** -+ * This function adds a QH to either the non periodic or periodic schedule if -+ * it is not already in the schedule. If the QH is already in the schedule, no -+ * action is taken. -+ * -+ * @return 0 if successful, negative error code otherwise. -+ */ -+int dwc_otg_hcd_qh_add (dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) -+{ -+ //unsigned long flags; -+ int status = 0; -+ -+#ifdef CONFIG_SMP -+ //the spinlock is locked before this function get called, -+ //but in case the lock is needed, the check function is preserved -+ //but in non-SMP mode, all spinlock is lockable. -+ //don't do the test in non-SMP mode -+ -+ if(spin_trylock(&hcd->lock)) { -+ printk("%s: It is not supposed to be lockable!!\n",__func__); -+ BUG(); -+ } -+#endif -+// SPIN_LOCK_IRQSAVE(&hcd->lock, flags) -+ -+ if (!list_empty(&qh->qh_list_entry)) { -+ /* QH already in a schedule. */ -+ goto done; -+ } -+ -+ /* Add the new QH to the appropriate schedule */ -+ if (dwc_qh_is_non_per(qh)) { -+ /* Always start in the inactive schedule. */ -+ list_add_tail(&qh->qh_list_entry, &hcd->non_periodic_sched_inactive); -+ } else { -+ status = schedule_periodic(hcd, qh); -+ } -+ -+ done: -+// SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags) -+ -+ return status; -+} -+ -+/** -+ * Removes an interrupt or isochronous transfer from the periodic schedule. -+ */ -+static void deschedule_periodic(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) -+{ -+ struct usb_bus *bus = hcd_to_bus(dwc_otg_hcd_to_hcd(hcd)); -+ int i; -+ -+ list_del_init(&qh->qh_list_entry); -+ /* Update claimed usecs per (micro)frame. */ -+ hcd->periodic_usecs -= qh->usecs; -+ for (i = 0; i < 8; i++) { -+ hcd->frame_usecs[i] += qh->frame_usecs[i]; -+ qh->frame_usecs[i] = 0; -+ } -+ /* -+ * Update average periodic bandwidth claimed and # periodic reqs for -+ * usbfs. -+ */ -+ bus->bandwidth_allocated -= qh->usecs / qh->interval; -+ -+ if (qh->ep_type == USB_ENDPOINT_XFER_INT) -+ bus->bandwidth_int_reqs--; -+ else -+ bus->bandwidth_isoc_reqs--; -+} -+ -+/** -+ * Removes a QH from either the non-periodic or periodic schedule. Memory is -+ * not freed. -+ * -+ * @param[in] hcd The HCD state structure. -+ * @param[in] qh QH to remove from schedule. */ -+void dwc_otg_hcd_qh_remove (dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) -+{ -+ //unsigned long flags; -+ -+#ifdef CONFIG_SMP -+ //the spinlock is locked before this function get called, -+ //but in case the lock is needed, the check function is preserved -+ //but in non-SMP mode, all spinlock is lockable. -+ //don't do the test in non-SMP mode -+ -+ if(spin_trylock(&hcd->lock)) { -+ printk("%s: It is not supposed to be lockable!!\n",__func__); -+ BUG(); -+ } -+#endif -+// SPIN_LOCK_IRQSAVE(&hcd->lock, flags); -+ -+ if (list_empty(&qh->qh_list_entry)) { -+ /* QH is not in a schedule. */ -+ goto done; -+ } -+ -+ if (dwc_qh_is_non_per(qh)) { -+ if (hcd->non_periodic_qh_ptr == &qh->qh_list_entry) { -+ hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next; -+ } -+ list_del_init(&qh->qh_list_entry); -+ } else { -+ deschedule_periodic(hcd, qh); -+ } -+ -+ done: -+// SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags); -+ return; -+} -+ -+/** -+ * Deactivates a QH. For non-periodic QHs, removes the QH from the active -+ * non-periodic schedule. The QH is added to the inactive non-periodic -+ * schedule if any QTDs are still attached to the QH. -+ * -+ * For periodic QHs, the QH is removed from the periodic queued schedule. If -+ * there are any QTDs still attached to the QH, the QH is added to either the -+ * periodic inactive schedule or the periodic ready schedule and its next -+ * scheduled frame is calculated. The QH is placed in the ready schedule if -+ * the scheduled frame has been reached already. Otherwise it's placed in the -+ * inactive schedule. If there are no QTDs attached to the QH, the QH is -+ * completely removed from the periodic schedule. -+ */ -+void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, int sched_next_periodic_split) -+{ -+ unsigned long flags; -+ SPIN_LOCK_IRQSAVE(&hcd->lock, flags); -+ -+ if (dwc_qh_is_non_per(qh)) { -+ dwc_otg_hcd_qh_remove(hcd, qh); -+ if (!list_empty(&qh->qtd_list)) { -+ /* Add back to inactive non-periodic schedule. */ -+ dwc_otg_hcd_qh_add(hcd, qh); -+ } -+ } else { -+ uint16_t frame_number = dwc_otg_hcd_get_frame_number(dwc_otg_hcd_to_hcd(hcd)); -+ -+ if (qh->do_split) { -+ /* Schedule the next continuing periodic split transfer */ -+ if (sched_next_periodic_split) { -+ -+ qh->sched_frame = frame_number; -+ if (dwc_frame_num_le(frame_number, -+ dwc_frame_num_inc(qh->start_split_frame, 1))) { -+ /* -+ * Allow one frame to elapse after start -+ * split microframe before scheduling -+ * complete split, but DONT if we are -+ * doing the next start split in the -+ * same frame for an ISOC out. -+ */ -+ if ((qh->ep_type != USB_ENDPOINT_XFER_ISOC) || (qh->ep_is_in != 0)) { -+ qh->sched_frame = dwc_frame_num_inc(qh->sched_frame, 1); -+ } -+ } -+ } else { -+ qh->sched_frame = dwc_frame_num_inc(qh->start_split_frame, -+ qh->interval); -+ if (dwc_frame_num_le(qh->sched_frame, frame_number)) { -+ qh->sched_frame = frame_number; -+ } -+ qh->sched_frame |= 0x7; -+ qh->start_split_frame = qh->sched_frame; -+ } -+ } else { -+ qh->sched_frame = dwc_frame_num_inc(qh->sched_frame, qh->interval); -+ if (dwc_frame_num_le(qh->sched_frame, frame_number)) { -+ qh->sched_frame = frame_number; -+ } -+ } -+ -+ if (list_empty(&qh->qtd_list)) { -+ dwc_otg_hcd_qh_remove(hcd, qh); -+ } else { -+ /* -+ * Remove from periodic_sched_queued and move to -+ * appropriate queue. -+ */ -+ if (qh->sched_frame == frame_number) { -+ list_move(&qh->qh_list_entry, -+ &hcd->periodic_sched_ready); -+ } else { -+ list_move(&qh->qh_list_entry, -+ &hcd->periodic_sched_inactive); -+ } -+ } -+ } -+ -+ SPIN_UNLOCK_IRQRESTORE(&hcd->lock, flags); -+} -+ -+/** -+ * This function allocates and initializes a QTD. -+ * -+ * @param[in] urb The URB to create a QTD from. Each URB-QTD pair will end up -+ * pointing to each other so each pair should have a unique correlation. -+ * -+ * @return Returns pointer to the newly allocated QTD, or NULL on error. */ -+dwc_otg_qtd_t *dwc_otg_hcd_qtd_create (struct urb *urb) -+{ -+ dwc_otg_qtd_t *qtd; -+ -+ qtd = dwc_otg_hcd_qtd_alloc (); -+ if (qtd == NULL) { -+ return NULL; -+ } -+ -+ dwc_otg_hcd_qtd_init (qtd, urb); -+ return qtd; -+} -+ -+/** -+ * Initializes a QTD structure. -+ * -+ * @param[in] qtd The QTD to initialize. -+ * @param[in] urb The URB to use for initialization. */ -+void dwc_otg_hcd_qtd_init (dwc_otg_qtd_t *qtd, struct urb *urb) -+{ -+ memset (qtd, 0, sizeof (dwc_otg_qtd_t)); -+ qtd->urb = urb; -+ if (usb_pipecontrol(urb->pipe)) { -+ /* -+ * The only time the QTD data toggle is used is on the data -+ * phase of control transfers. This phase always starts with -+ * DATA1. -+ */ -+ qtd->data_toggle = DWC_OTG_HC_PID_DATA1; -+ qtd->control_phase = DWC_OTG_CONTROL_SETUP; -+ } -+ -+ /* start split */ -+ qtd->complete_split = 0; -+ qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_ALL; -+ qtd->isoc_split_offset = 0; -+ -+ /* Store the qtd ptr in the urb to reference what QTD. */ -+ urb->hcpriv = qtd; -+ return; -+} -+ -+/** -+ * This function adds a QTD to the QTD-list of a QH. It will find the correct -+ * QH to place the QTD into. If it does not find a QH, then it will create a -+ * new QH. If the QH to which the QTD is added is not currently scheduled, it -+ * is placed into the proper schedule based on its EP type. -+ * -+ * @param[in] qtd The QTD to add -+ * @param[in] dwc_otg_hcd The DWC HCD structure -+ * -+ * @return 0 if successful, negative error code otherwise. -+ */ -+int dwc_otg_hcd_qtd_add (dwc_otg_qtd_t *qtd, -+ dwc_otg_hcd_t *dwc_otg_hcd) -+{ -+ struct usb_host_endpoint *ep; -+ dwc_otg_qh_t *qh; -+ unsigned long flags; -+ int retval = 0; -+ -+ struct urb *urb = qtd->urb; -+ -+ SPIN_LOCK_IRQSAVE(&dwc_otg_hcd->lock, flags); -+ -+ /* -+ * Get the QH which holds the QTD-list to insert to. Create QH if it -+ * doesn't exist. -+ */ -+ ep = dwc_urb_to_endpoint(urb); -+ qh = (dwc_otg_qh_t *)ep->hcpriv; -+ if (qh == NULL) { -+ qh = dwc_otg_hcd_qh_create (dwc_otg_hcd, urb); -+ if (qh == NULL) { -+ goto done; -+ } -+ ep->hcpriv = qh; -+ } -+ -+ retval = dwc_otg_hcd_qh_add(dwc_otg_hcd, qh); -+ if (retval == 0) { -+ list_add_tail(&qtd->qtd_list_entry, &qh->qtd_list); -+ } -+ -+ done: -+ SPIN_UNLOCK_IRQRESTORE(&dwc_otg_hcd->lock, flags); -+ -+ return retval; -+} -+ -+#endif /* DWC_DEVICE_ONLY */ ---- /dev/null -+++ b/drivers/usb/dwc/otg_pcd.c -@@ -0,0 +1,2502 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd.c $ -+ * $Revision: #70 $ -+ * $Date: 2008/10/14 $ -+ * $Change: 1115682 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+#ifndef DWC_HOST_ONLY -+ -+/** @file -+ * This file implements the Peripheral Controller Driver. -+ * -+ * The Peripheral Controller Driver (PCD) is responsible for -+ * translating requests from the Function Driver into the appropriate -+ * actions on the DWC_otg controller. It isolates the Function Driver -+ * from the specifics of the controller by providing an API to the -+ * Function Driver. -+ * -+ * The Peripheral Controller Driver for Linux will implement the -+ * Gadget API, so that the existing Gadget drivers can be used. -+ * (Gadget Driver is the Linux terminology for a Function Driver.) -+ * -+ * The Linux Gadget API is defined in the header file -+ * <code><linux/usb_gadget.h></code>. The USB EP operations API is -+ * defined in the structure <code>usb_ep_ops</code> and the USB -+ * Controller API is defined in the structure -+ * <code>usb_gadget_ops</code>. -+ * -+ * An important function of the PCD is managing interrupts generated -+ * by the DWC_otg controller. The implementation of the DWC_otg device -+ * mode interrupt service routines is in dwc_otg_pcd_intr.c. -+ * -+ * @todo Add Device Mode test modes (Test J mode, Test K mode, etc). -+ * @todo Does it work when the request size is greater than DEPTSIZ -+ * transfer size -+ * -+ */ -+ -+ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/init.h> -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/errno.h> -+#include <linux/list.h> -+#include <linux/interrupt.h> -+#include <linux/string.h> -+#include <linux/dma-mapping.h> -+#include <linux/version.h> -+ -+#include <mach/irqs.h> -+#include <linux/usb/ch9.h> -+ -+//#include <linux/usb_gadget.h> -+ -+#include "otg_driver.h" -+#include "otg_pcd.h" -+ -+ -+ -+/** -+ * Static PCD pointer for use in usb_gadget_register_driver and -+ * usb_gadget_unregister_driver. Initialized in dwc_otg_pcd_init. -+ */ -+static dwc_otg_pcd_t *s_pcd = 0; -+ -+ -+/* Display the contents of the buffer */ -+extern void dump_msg(const u8 *buf, unsigned int length); -+ -+ -+/** -+ * This function completes a request. It call's the request call back. -+ */ -+void dwc_otg_request_done(dwc_otg_pcd_ep_t *ep, dwc_otg_pcd_request_t *req, -+ int status) -+{ -+ unsigned stopped = ep->stopped; -+ -+ DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, ep); -+ list_del_init(&req->queue); -+ -+ if (req->req.status == -EINPROGRESS) { -+ req->req.status = status; -+ } else { -+ status = req->req.status; -+ } -+ -+ /* don't modify queue heads during completion callback */ -+ ep->stopped = 1; -+ SPIN_UNLOCK(&ep->pcd->lock); -+ req->req.complete(&ep->ep, &req->req); -+ SPIN_LOCK(&ep->pcd->lock); -+ -+ if (ep->pcd->request_pending > 0) { -+ --ep->pcd->request_pending; -+ } -+ -+ ep->stopped = stopped; -+} -+ -+/** -+ * This function terminates all the requsts in the EP request queue. -+ */ -+void dwc_otg_request_nuke(dwc_otg_pcd_ep_t *ep) -+{ -+ dwc_otg_pcd_request_t *req; -+ -+ ep->stopped = 1; -+ -+ /* called with irqs blocked?? */ -+ while (!list_empty(&ep->queue)) { -+ req = list_entry(ep->queue.next, dwc_otg_pcd_request_t, -+ queue); -+ dwc_otg_request_done(ep, req, -ESHUTDOWN); -+ } -+} -+ -+/* USB Endpoint Operations */ -+/* -+ * The following sections briefly describe the behavior of the Gadget -+ * API endpoint operations implemented in the DWC_otg driver -+ * software. Detailed descriptions of the generic behavior of each of -+ * these functions can be found in the Linux header file -+ * include/linux/usb_gadget.h. -+ * -+ * The Gadget API provides wrapper functions for each of the function -+ * pointers defined in usb_ep_ops. The Gadget Driver calls the wrapper -+ * function, which then calls the underlying PCD function. The -+ * following sections are named according to the wrapper -+ * functions. Within each section, the corresponding DWC_otg PCD -+ * function name is specified. -+ * -+ */ -+ -+/** -+ * This function assigns periodic Tx FIFO to an periodic EP -+ * in shared Tx FIFO mode -+ */ -+static uint32_t assign_perio_tx_fifo(dwc_otg_core_if_t *core_if) -+{ -+ uint32_t PerTxMsk = 1; -+ int i; -+ for(i = 0; i < core_if->hwcfg4.b.num_dev_perio_in_ep; ++i) -+ { -+ if((PerTxMsk & core_if->p_tx_msk) == 0) { -+ core_if->p_tx_msk |= PerTxMsk; -+ return i + 1; -+ } -+ PerTxMsk <<= 1; -+ } -+ return 0; -+} -+/** -+ * This function releases periodic Tx FIFO -+ * in shared Tx FIFO mode -+ */ -+static void release_perio_tx_fifo(dwc_otg_core_if_t *core_if, uint32_t fifo_num) -+{ -+ core_if->p_tx_msk = (core_if->p_tx_msk & (1 << (fifo_num - 1))) ^ core_if->p_tx_msk; -+} -+/** -+ * This function assigns periodic Tx FIFO to an periodic EP -+ * in shared Tx FIFO mode -+ */ -+static uint32_t assign_tx_fifo(dwc_otg_core_if_t *core_if) -+{ -+ uint32_t TxMsk = 1; -+ int i; -+ -+ for(i = 0; i < core_if->hwcfg4.b.num_in_eps; ++i) -+ { -+ if((TxMsk & core_if->tx_msk) == 0) { -+ core_if->tx_msk |= TxMsk; -+ return i + 1; -+ } -+ TxMsk <<= 1; -+ } -+ return 0; -+} -+/** -+ * This function releases periodic Tx FIFO -+ * in shared Tx FIFO mode -+ */ -+static void release_tx_fifo(dwc_otg_core_if_t *core_if, uint32_t fifo_num) -+{ -+ core_if->tx_msk = (core_if->tx_msk & (1 << (fifo_num - 1))) ^ core_if->tx_msk; -+} -+ -+/** -+ * This function is called by the Gadget Driver for each EP to be -+ * configured for the current configuration (SET_CONFIGURATION). -+ * -+ * This function initializes the dwc_otg_ep_t data structure, and then -+ * calls dwc_otg_ep_activate. -+ */ -+static int dwc_otg_pcd_ep_enable(struct usb_ep *usb_ep, -+ const struct usb_endpoint_descriptor *ep_desc) -+{ -+ dwc_otg_pcd_ep_t *ep = 0; -+ dwc_otg_pcd_t *pcd = 0; -+ unsigned long flags; -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p)\n", __func__, usb_ep, ep_desc); -+ -+ ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); -+ if (!usb_ep || !ep_desc || ep->desc || -+ ep_desc->bDescriptorType != USB_DT_ENDPOINT) { -+ DWC_WARN("%s, bad ep or descriptor\n", __func__); -+ return -EINVAL; -+ } -+ if (ep == &ep->pcd->ep0) { -+ DWC_WARN("%s, bad ep(0)\n", __func__); -+ return -EINVAL; -+ } -+ -+ /* Check FIFO size? */ -+ if (!ep_desc->wMaxPacketSize) { -+ DWC_WARN("%s, bad %s maxpacket\n", __func__, usb_ep->name); -+ return -ERANGE; -+ } -+ -+ pcd = ep->pcd; -+ if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) { -+ DWC_WARN("%s, bogus device state\n", __func__); -+ return -ESHUTDOWN; -+ } -+ -+ SPIN_LOCK_IRQSAVE(&pcd->lock, flags); -+ -+ ep->desc = ep_desc; -+ ep->ep.maxpacket = le16_to_cpu (ep_desc->wMaxPacketSize); -+ -+ /* -+ * Activate the EP -+ */ -+ ep->stopped = 0; -+ -+ ep->dwc_ep.is_in = (USB_DIR_IN & ep_desc->bEndpointAddress) != 0; -+ ep->dwc_ep.maxpacket = ep->ep.maxpacket; -+ -+ ep->dwc_ep.type = ep_desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; -+ -+ if(ep->dwc_ep.is_in) { -+ if(!pcd->otg_dev->core_if->en_multiple_tx_fifo) { -+ ep->dwc_ep.tx_fifo_num = 0; -+ -+ if (ep->dwc_ep.type == USB_ENDPOINT_XFER_ISOC) { -+ /* -+ * if ISOC EP then assign a Periodic Tx FIFO. -+ */ -+ ep->dwc_ep.tx_fifo_num = assign_perio_tx_fifo(pcd->otg_dev->core_if); -+ } -+ } else { -+ /* -+ * if Dedicated FIFOs mode is on then assign a Tx FIFO. -+ */ -+ ep->dwc_ep.tx_fifo_num = assign_tx_fifo(pcd->otg_dev->core_if); -+ -+ } -+ } -+ /* Set initial data PID. */ -+ if (ep->dwc_ep.type == USB_ENDPOINT_XFER_BULK) { -+ ep->dwc_ep.data_pid_start = 0; -+ } -+ -+ DWC_DEBUGPL(DBG_PCD, "Activate %s-%s: type=%d, mps=%d desc=%p\n", -+ ep->ep.name, (ep->dwc_ep.is_in ?"IN":"OUT"), -+ ep->dwc_ep.type, ep->dwc_ep.maxpacket, ep->desc); -+ -+ if(ep->dwc_ep.type != USB_ENDPOINT_XFER_ISOC) { -+ ep->dwc_ep.desc_addr = dwc_otg_ep_alloc_desc_chain(&ep->dwc_ep.dma_desc_addr, MAX_DMA_DESC_CNT); -+ } -+ -+ dwc_otg_ep_activate(GET_CORE_IF(pcd), &ep->dwc_ep); -+ SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); -+ -+ return 0; -+} -+ -+/** -+ * This function is called when an EP is disabled due to disconnect or -+ * change in configuration. Any pending requests will terminate with a -+ * status of -ESHUTDOWN. -+ * -+ * This function modifies the dwc_otg_ep_t data structure for this EP, -+ * and then calls dwc_otg_ep_deactivate. -+ */ -+static int dwc_otg_pcd_ep_disable(struct usb_ep *usb_ep) -+{ -+ dwc_otg_pcd_ep_t *ep; -+ dwc_otg_pcd_t *pcd = 0; -+ unsigned long flags; -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, usb_ep); -+ ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); -+ if (!usb_ep || !ep->desc) { -+ DWC_DEBUGPL(DBG_PCD, "%s, %s not enabled\n", __func__, -+ usb_ep ? ep->ep.name : NULL); -+ return -EINVAL; -+ } -+ -+ SPIN_LOCK_IRQSAVE(&ep->pcd->lock, flags); -+ -+ dwc_otg_request_nuke(ep); -+ -+ dwc_otg_ep_deactivate(GET_CORE_IF(ep->pcd), &ep->dwc_ep); -+ ep->desc = 0; -+ ep->stopped = 1; -+ -+ if(ep->dwc_ep.is_in) { -+ dwc_otg_flush_tx_fifo(GET_CORE_IF(ep->pcd), ep->dwc_ep.tx_fifo_num); -+ release_perio_tx_fifo(GET_CORE_IF(ep->pcd), ep->dwc_ep.tx_fifo_num); -+ release_tx_fifo(GET_CORE_IF(ep->pcd), ep->dwc_ep.tx_fifo_num); -+ } -+ -+ /* Free DMA Descriptors */ -+ pcd = ep->pcd; -+ -+ SPIN_UNLOCK_IRQRESTORE(&ep->pcd->lock, flags); -+ -+ if(ep->dwc_ep.type != USB_ENDPOINT_XFER_ISOC && ep->dwc_ep.desc_addr) { -+ dwc_otg_ep_free_desc_chain(ep->dwc_ep.desc_addr, ep->dwc_ep.dma_desc_addr, MAX_DMA_DESC_CNT); -+ } -+ -+ DWC_DEBUGPL(DBG_PCD, "%s disabled\n", usb_ep->name); -+ return 0; -+} -+ -+ -+/** -+ * This function allocates a request object to use with the specified -+ * endpoint. -+ * -+ * @param ep The endpoint to be used with with the request -+ * @param gfp_flags the GFP_* flags to use. -+ */ -+static struct usb_request *dwc_otg_pcd_alloc_request(struct usb_ep *ep, -+ gfp_t gfp_flags) -+{ -+ dwc_otg_pcd_request_t *req; -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p,%d)\n", __func__, ep, gfp_flags); -+ if (0 == ep) { -+ DWC_WARN("%s() %s\n", __func__, "Invalid EP!\n"); -+ return 0; -+ } -+ req = kmalloc(sizeof(dwc_otg_pcd_request_t), gfp_flags); -+ if (0 == req) { -+ DWC_WARN("%s() %s\n", __func__, -+ "request allocation failed!\n"); -+ return 0; -+ } -+ memset(req, 0, sizeof(dwc_otg_pcd_request_t)); -+ req->req.dma = DMA_ADDR_INVALID; -+ INIT_LIST_HEAD(&req->queue); -+ return &req->req; -+} -+ -+/** -+ * This function frees a request object. -+ * -+ * @param ep The endpoint associated with the request -+ * @param req The request being freed -+ */ -+static void dwc_otg_pcd_free_request(struct usb_ep *ep, -+ struct usb_request *req) -+{ -+ dwc_otg_pcd_request_t *request; -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p)\n", __func__, ep, req); -+ -+ if (0 == ep || 0 == req) { -+ DWC_WARN("%s() %s\n", __func__, -+ "Invalid ep or req argument!\n"); -+ return; -+ } -+ -+ request = container_of(req, dwc_otg_pcd_request_t, req); -+ kfree(request); -+} -+ -+#if 0 -+/** -+ * This function allocates an I/O buffer to be used for a transfer -+ * to/from the specified endpoint. -+ * -+ * @param usb_ep The endpoint to be used with with the request -+ * @param bytes The desired number of bytes for the buffer -+ * @param dma Pointer to the buffer's DMA address; must be valid -+ * @param gfp_flags the GFP_* flags to use. -+ * @return address of a new buffer or null is buffer could not be allocated. -+ */ -+static void *dwc_otg_pcd_alloc_buffer(struct usb_ep *usb_ep, unsigned bytes, -+ dma_addr_t *dma, -+ gfp_t gfp_flags) -+{ -+ void *buf; -+ dwc_otg_pcd_ep_t *ep; -+ dwc_otg_pcd_t *pcd = 0; -+ -+ ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); -+ pcd = ep->pcd; -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p,%d,%p,%0x)\n", __func__, usb_ep, bytes, -+ dma, gfp_flags); -+ -+ /* Check dword alignment */ -+ if ((bytes & 0x3UL) != 0) { -+ DWC_WARN("%s() Buffer size is not a multiple of" -+ "DWORD size (%d)",__func__, bytes); -+ } -+ -+ if (GET_CORE_IF(pcd)->dma_enable) { -+ buf = dma_alloc_coherent (NULL, bytes, dma, gfp_flags); -+ } -+ else { -+ buf = kmalloc(bytes, gfp_flags); -+ } -+ -+ /* Check dword alignment */ -+ if (((int)buf & 0x3UL) != 0) { -+ DWC_WARN("%s() Buffer is not DWORD aligned (%p)", -+ __func__, buf); -+ } -+ -+ return buf; -+} -+ -+/** -+ * This function frees an I/O buffer that was allocated by alloc_buffer. -+ * -+ * @param usb_ep the endpoint associated with the buffer -+ * @param buf address of the buffer -+ * @param dma The buffer's DMA address -+ * @param bytes The number of bytes of the buffer -+ */ -+static void dwc_otg_pcd_free_buffer(struct usb_ep *usb_ep, void *buf, -+ dma_addr_t dma, unsigned bytes) -+{ -+ dwc_otg_pcd_ep_t *ep; -+ dwc_otg_pcd_t *pcd = 0; -+ -+ ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); -+ pcd = ep->pcd; -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p,%0x,%d)\n", __func__, ep, buf, dma, bytes); -+ -+ if (GET_CORE_IF(pcd)->dma_enable) { -+ dma_free_coherent (NULL, bytes, buf, dma); -+ } -+ else { -+ kfree(buf); -+ } -+} -+#endif -+ -+/** -+ * This function is used to submit an I/O Request to an EP. -+ * -+ * - When the request completes the request's completion callback -+ * is called to return the request to the driver. -+ * - An EP, except control EPs, may have multiple requests -+ * pending. -+ * - Once submitted the request cannot be examined or modified. -+ * - Each request is turned into one or more packets. -+ * - A BULK EP can queue any amount of data; the transfer is -+ * packetized. -+ * - Zero length Packets are specified with the request 'zero' -+ * flag. -+ */ -+static int dwc_otg_pcd_ep_queue(struct usb_ep *usb_ep, -+ struct usb_request *usb_req, -+ gfp_t gfp_flags) -+{ -+ int prevented = 0; -+ dwc_otg_pcd_request_t *req; -+ dwc_otg_pcd_ep_t *ep; -+ dwc_otg_pcd_t *pcd; -+ unsigned long flags = 0; -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p,%d)\n", -+ __func__, usb_ep, usb_req, gfp_flags); -+ -+ req = container_of(usb_req, dwc_otg_pcd_request_t, req); -+ if (!usb_req || !usb_req->complete || !usb_req->buf || -+ !list_empty(&req->queue)) { -+ DWC_WARN("%s, bad params\n", __func__); -+ return -EINVAL; -+ } -+ -+ ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); -+ if (!usb_ep || (!ep->desc && ep->dwc_ep.num != 0)/* || ep->stopped != 0*/) { -+ DWC_WARN("%s, bad ep\n", __func__); -+ return -EINVAL; -+ } -+ -+ pcd = ep->pcd; -+ if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) { -+ DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n", pcd->gadget.speed); -+ DWC_WARN("%s, bogus device state\n", __func__); -+ return -ESHUTDOWN; -+ } -+ -+ -+ DWC_DEBUGPL(DBG_PCD, "%s queue req %p, len %d buf %p\n", -+ usb_ep->name, usb_req, usb_req->length, usb_req->buf); -+ -+ if (!GET_CORE_IF(pcd)->core_params->opt) { -+ if (ep->dwc_ep.num != 0) { -+ DWC_ERROR("%s queue req %p, len %d buf %p\n", -+ usb_ep->name, usb_req, usb_req->length, usb_req->buf); -+ } -+ } -+ -+ SPIN_LOCK_IRQSAVE(&ep->pcd->lock, flags); -+ -+#if defined(DEBUG) & defined(VERBOSE) -+ dump_msg(usb_req->buf, usb_req->length); -+#endif -+ -+ usb_req->status = -EINPROGRESS; -+ usb_req->actual = 0; -+ -+ /* -+ * For EP0 IN without premature status, zlp is required? -+ */ -+ if (ep->dwc_ep.num == 0 && ep->dwc_ep.is_in) { -+ DWC_DEBUGPL(DBG_PCDV, "%s-OUT ZLP\n", usb_ep->name); -+ //_req->zero = 1; -+ } -+ -+ /* Start the transfer */ -+ if (list_empty(&ep->queue) && !ep->stopped) { -+ /* EP0 Transfer? */ -+ if (ep->dwc_ep.num == 0) { -+ switch (pcd->ep0state) { -+ case EP0_IN_DATA_PHASE: -+ DWC_DEBUGPL(DBG_PCD, -+ "%s ep0: EP0_IN_DATA_PHASE\n", -+ __func__); -+ break; -+ -+ case EP0_OUT_DATA_PHASE: -+ DWC_DEBUGPL(DBG_PCD, -+ "%s ep0: EP0_OUT_DATA_PHASE\n", -+ __func__); -+ if (pcd->request_config) { -+ /* Complete STATUS PHASE */ -+ ep->dwc_ep.is_in = 1; -+ pcd->ep0state = EP0_IN_STATUS_PHASE; -+ } -+ break; -+ -+ case EP0_IN_STATUS_PHASE: -+ DWC_DEBUGPL(DBG_PCD, -+ "%s ep0: EP0_IN_STATUS_PHASE\n", -+ __func__); -+ break; -+ -+ default: -+ DWC_DEBUGPL(DBG_ANY, "ep0: odd state %d\n", -+ pcd->ep0state); -+ SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); -+ return -EL2HLT; -+ } -+ ep->dwc_ep.dma_addr = usb_req->dma; -+ ep->dwc_ep.start_xfer_buff = usb_req->buf; -+ ep->dwc_ep.xfer_buff = usb_req->buf; -+ ep->dwc_ep.xfer_len = usb_req->length; -+ ep->dwc_ep.xfer_count = 0; -+ ep->dwc_ep.sent_zlp = 0; -+ ep->dwc_ep.total_len = ep->dwc_ep.xfer_len; -+ -+ if(usb_req->zero) { -+ if((ep->dwc_ep.xfer_len % ep->dwc_ep.maxpacket == 0) -+ && (ep->dwc_ep.xfer_len != 0)) { -+ ep->dwc_ep.sent_zlp = 1; -+ } -+ -+ } -+ -+ ep_check_and_patch_dma_addr(ep); -+ dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep->dwc_ep); -+ } -+ else { -+ -+ uint32_t max_transfer = GET_CORE_IF(ep->pcd)->core_params->max_transfer_size; -+ -+ /* Setup and start the Transfer */ -+ ep->dwc_ep.dma_addr = usb_req->dma; -+ ep->dwc_ep.start_xfer_buff = usb_req->buf; -+ ep->dwc_ep.xfer_buff = usb_req->buf; -+ ep->dwc_ep.sent_zlp = 0; -+ ep->dwc_ep.total_len = usb_req->length; -+ ep->dwc_ep.xfer_len = 0; -+ ep->dwc_ep.xfer_count = 0; -+ -+ if(max_transfer > MAX_TRANSFER_SIZE) { -+ ep->dwc_ep.maxxfer = max_transfer - (max_transfer % ep->dwc_ep.maxpacket); -+ } else { -+ ep->dwc_ep.maxxfer = max_transfer; -+ } -+ -+ if(usb_req->zero) { -+ if((ep->dwc_ep.total_len % ep->dwc_ep.maxpacket == 0) -+ && (ep->dwc_ep.total_len != 0)) { -+ ep->dwc_ep.sent_zlp = 1; -+ } -+ -+ } -+ -+ ep_check_and_patch_dma_addr(ep); -+ dwc_otg_ep_start_transfer(GET_CORE_IF(pcd), &ep->dwc_ep); -+ } -+ } -+ -+ if ((req != 0) || prevented) { -+ ++pcd->request_pending; -+ list_add_tail(&req->queue, &ep->queue); -+ if (ep->dwc_ep.is_in && ep->stopped && !(GET_CORE_IF(pcd)->dma_enable)) { -+ /** @todo NGS Create a function for this. */ -+ diepmsk_data_t diepmsk = { .d32 = 0}; -+ diepmsk.b.intktxfemp = 1; -+ if(&GET_CORE_IF(pcd)->multiproc_int_enable) { -+ dwc_modify_reg32(&GET_CORE_IF(pcd)->dev_if->dev_global_regs->diepeachintmsk[ep->dwc_ep.num], -+ 0, diepmsk.d32); -+ } else { -+ dwc_modify_reg32(&GET_CORE_IF(pcd)->dev_if->dev_global_regs->diepmsk, 0, diepmsk.d32); -+ } -+ } -+ } -+ -+ SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); -+ return 0; -+} -+ -+/** -+ * This function cancels an I/O request from an EP. -+ */ -+static int dwc_otg_pcd_ep_dequeue(struct usb_ep *usb_ep, -+ struct usb_request *usb_req) -+{ -+ dwc_otg_pcd_request_t *req; -+ dwc_otg_pcd_ep_t *ep; -+ dwc_otg_pcd_t *pcd; -+ unsigned long flags; -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p)\n", __func__, usb_ep, usb_req); -+ -+ ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); -+ if (!usb_ep || !usb_req || (!ep->desc && ep->dwc_ep.num != 0)) { -+ DWC_WARN("%s, bad argument\n", __func__); -+ return -EINVAL; -+ } -+ pcd = ep->pcd; -+ if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) { -+ DWC_WARN("%s, bogus device state\n", __func__); -+ return -ESHUTDOWN; -+ } -+ -+ SPIN_LOCK_IRQSAVE(&pcd->lock, flags); -+ DWC_DEBUGPL(DBG_PCDV, "%s %s %s %p\n", __func__, usb_ep->name, -+ ep->dwc_ep.is_in ? "IN" : "OUT", -+ usb_req); -+ -+ /* make sure it's actually queued on this endpoint */ -+ list_for_each_entry(req, &ep->queue, queue) -+ { -+ if (&req->req == usb_req) { -+ break; -+ } -+ } -+ -+ if (&req->req != usb_req) { -+ SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); -+ return -EINVAL; -+ } -+ -+ if (!list_empty(&req->queue)) { -+ dwc_otg_request_done(ep, req, -ECONNRESET); -+ } -+ else { -+ req = 0; -+ } -+ -+ SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); -+ -+ return req ? 0 : -EOPNOTSUPP; -+} -+ -+/** -+ * usb_ep_set_halt stalls an endpoint. -+ * -+ * usb_ep_clear_halt clears an endpoint halt and resets its data -+ * toggle. -+ * -+ * Both of these functions are implemented with the same underlying -+ * function. The behavior depends on the value argument. -+ * -+ * @param[in] usb_ep the Endpoint to halt or clear halt. -+ * @param[in] value -+ * - 0 means clear_halt. -+ * - 1 means set_halt, -+ * - 2 means clear stall lock flag. -+ * - 3 means set stall lock flag. -+ */ -+static int dwc_otg_pcd_ep_set_halt(struct usb_ep *usb_ep, int value) -+{ -+ int retval = 0; -+ unsigned long flags; -+ dwc_otg_pcd_ep_t *ep = 0; -+ -+ -+ DWC_DEBUGPL(DBG_PCD,"HALT %s %d\n", usb_ep->name, value); -+ -+ ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); -+ -+ if (!usb_ep || (!ep->desc && ep != &ep->pcd->ep0) || -+ ep->desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) { -+ DWC_WARN("%s, bad ep\n", __func__); -+ return -EINVAL; -+ } -+ -+ SPIN_LOCK_IRQSAVE(&ep->pcd->lock, flags); -+ if (!list_empty(&ep->queue)) { -+ DWC_WARN("%s() %s XFer In process\n", __func__, usb_ep->name); -+ retval = -EAGAIN; -+ } -+ else if (value == 0) { -+ dwc_otg_ep_clear_stall(ep->pcd->otg_dev->core_if, -+ &ep->dwc_ep); -+ } -+ else if(value == 1) { -+ if (ep->dwc_ep.is_in == 1 && ep->pcd->otg_dev->core_if->dma_desc_enable) { -+ dtxfsts_data_t txstatus; -+ fifosize_data_t txfifosize; -+ -+ txfifosize.d32 = dwc_read_reg32(&ep->pcd->otg_dev->core_if->core_global_regs->dptxfsiz_dieptxf[ep->dwc_ep.tx_fifo_num]); -+ txstatus.d32 = dwc_read_reg32(&ep->pcd->otg_dev->core_if->dev_if->in_ep_regs[ep->dwc_ep.num]->dtxfsts); -+ -+ if(txstatus.b.txfspcavail < txfifosize.b.depth) { -+ DWC_WARN("%s() %s Data In Tx Fifo\n", __func__, usb_ep->name); -+ retval = -EAGAIN; -+ } -+ else { -+ if (ep->dwc_ep.num == 0) { -+ ep->pcd->ep0state = EP0_STALL; -+ } -+ -+ ep->stopped = 1; -+ dwc_otg_ep_set_stall(ep->pcd->otg_dev->core_if, -+ &ep->dwc_ep); -+ } -+ } -+ else { -+ if (ep->dwc_ep.num == 0) { -+ ep->pcd->ep0state = EP0_STALL; -+ } -+ -+ ep->stopped = 1; -+ dwc_otg_ep_set_stall(ep->pcd->otg_dev->core_if, -+ &ep->dwc_ep); -+ } -+ } -+ else if (value == 2) { -+ ep->dwc_ep.stall_clear_flag = 0; -+ } -+ else if (value == 3) { -+ ep->dwc_ep.stall_clear_flag = 1; -+ } -+ -+ SPIN_UNLOCK_IRQRESTORE(&ep->pcd->lock, flags); -+ return retval; -+} -+ -+/** -+ * This function allocates a DMA Descriptor chain for the Endpoint -+ * buffer to be used for a transfer to/from the specified endpoint. -+ */ -+dwc_otg_dma_desc_t* dwc_otg_ep_alloc_desc_chain(uint32_t * dma_desc_addr, uint32_t count) -+{ -+ -+ return dma_alloc_coherent(NULL, count * sizeof(dwc_otg_dma_desc_t), dma_desc_addr, GFP_KERNEL); -+} -+ -+LIST_HEAD(tofree_list); -+DEFINE_SPINLOCK(tofree_list_lock); -+ -+struct free_param { -+ struct list_head list; -+ -+ void* addr; -+ dma_addr_t dma_addr; -+ uint32_t size; -+}; -+void free_list_agent_fn(void *data){ -+ struct list_head free_list; -+ struct free_param *cur,*next; -+ -+ spin_lock(&tofree_list_lock); -+ list_add(&free_list,&tofree_list); -+ list_del_init(&tofree_list); -+ spin_unlock(&tofree_list_lock); -+ -+ list_for_each_entry_safe(cur,next,&free_list,list){ -+ if(cur==&free_list) break; -+ dma_free_coherent(NULL,cur->size,cur->addr,cur->dma_addr); -+ list_del(&cur->list); -+ kfree(cur); -+ } -+} -+DECLARE_WORK(free_list_agent,free_list_agent_fn); -+/** -+ * This function frees a DMA Descriptor chain that was allocated by ep_alloc_desc. -+ */ -+void dwc_otg_ep_free_desc_chain(dwc_otg_dma_desc_t* desc_addr, uint32_t dma_desc_addr, uint32_t count) -+{ -+ if(irqs_disabled()){ -+ struct free_param* fp=kmalloc(sizeof(struct free_param),GFP_KERNEL); -+ fp->addr=desc_addr; -+ fp->dma_addr=dma_desc_addr; -+ fp->size=count*sizeof(dwc_otg_dma_desc_t); -+ -+ spin_lock(&tofree_list_lock); -+ list_add(&fp->list,&tofree_list); -+ spin_unlock(&tofree_list_lock); -+ -+ schedule_work(&free_list_agent); -+ return ; -+ } -+ dma_free_coherent(NULL, count * sizeof(dwc_otg_dma_desc_t), desc_addr, dma_desc_addr); -+} -+ -+#ifdef DWC_EN_ISOC -+ -+/** -+ * This function initializes a descriptor chain for Isochronous transfer -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param dwc_ep The EP to start the transfer on. -+ * -+ */ -+void dwc_otg_iso_ep_start_ddma_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *dwc_ep) -+{ -+ -+ dsts_data_t dsts = { .d32 = 0}; -+ depctl_data_t depctl = { .d32 = 0 }; -+ volatile uint32_t *addr; -+ int i, j; -+ -+ if(dwc_ep->is_in) -+ dwc_ep->desc_cnt = dwc_ep->buf_proc_intrvl / dwc_ep->bInterval; -+ else -+ dwc_ep->desc_cnt = dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm / dwc_ep->bInterval; -+ -+ -+ /** Allocate descriptors for double buffering */ -+ dwc_ep->iso_desc_addr = dwc_otg_ep_alloc_desc_chain(&dwc_ep->iso_dma_desc_addr,dwc_ep->desc_cnt*2); -+ if(dwc_ep->desc_addr) { -+ DWC_WARN("%s, can't allocate DMA descriptor chain\n", __func__); -+ return; -+ } -+ -+ dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); -+ -+ /** ISO OUT EP */ -+ if(dwc_ep->is_in == 0) { -+ desc_sts_data_t sts = { .d32 =0 }; -+ dwc_otg_dma_desc_t* dma_desc = dwc_ep->iso_desc_addr; -+ dma_addr_t dma_ad; -+ uint32_t data_per_desc; -+ dwc_otg_dev_out_ep_regs_t *out_regs = -+ core_if->dev_if->out_ep_regs[dwc_ep->num]; -+ int offset; -+ -+ addr = &core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl; -+ dma_ad = (dma_addr_t)dwc_read_reg32(&(out_regs->doepdma)); -+ -+ /** Buffer 0 descriptors setup */ -+ dma_ad = dwc_ep->dma_addr0; -+ -+ sts.b_iso_out.bs = BS_HOST_READY; -+ sts.b_iso_out.rxsts = 0; -+ sts.b_iso_out.l = 0; -+ sts.b_iso_out.sp = 0; -+ sts.b_iso_out.ioc = 0; -+ sts.b_iso_out.pid = 0; -+ sts.b_iso_out.framenum = 0; -+ -+ offset = 0; -+ for(i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; i+= dwc_ep->pkt_per_frm) -+ { -+ -+ for(j = 0; j < dwc_ep->pkt_per_frm; ++j) -+ { -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ sts.b_iso_out.rxbytes = data_per_desc; -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ -+ offset += data_per_desc; -+ dma_desc ++; -+ //(uint32_t)dma_ad += data_per_desc; -+ dma_ad = (uint32_t)dma_ad + data_per_desc; -+ } -+ } -+ -+ for(j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) -+ { -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ sts.b_iso_out.rxbytes = data_per_desc; -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ -+ offset += data_per_desc; -+ dma_desc ++; -+ //(uint32_t)dma_ad += data_per_desc; -+ dma_ad = (uint32_t)dma_ad + data_per_desc; -+ } -+ -+ sts.b_iso_out.ioc = 1; -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ sts.b_iso_out.rxbytes = data_per_desc; -+ -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ dma_desc ++; -+ -+ /** Buffer 1 descriptors setup */ -+ sts.b_iso_out.ioc = 0; -+ dma_ad = dwc_ep->dma_addr1; -+ -+ offset = 0; -+ for(i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; i+= dwc_ep->pkt_per_frm) -+ { -+ for(j = 0; j < dwc_ep->pkt_per_frm; ++j) -+ { -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ sts.b_iso_out.rxbytes = data_per_desc; -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ -+ offset += data_per_desc; -+ dma_desc ++; -+ //(uint32_t)dma_ad += data_per_desc; -+ dma_ad = (uint32_t)dma_ad + data_per_desc; -+ } -+ } -+ for(j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) -+ { -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ sts.b_iso_out.rxbytes = data_per_desc; -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ -+ offset += data_per_desc; -+ dma_desc ++; -+ //(uint32_t)dma_ad += data_per_desc; -+ dma_ad = (uint32_t)dma_ad + data_per_desc; -+ } -+ -+ sts.b_iso_out.ioc = 1; -+ sts.b_iso_out.l = 1; -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ sts.b_iso_out.rxbytes = data_per_desc; -+ -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ -+ dwc_ep->next_frame = 0; -+ -+ /** Write dma_ad into DOEPDMA register */ -+ dwc_write_reg32(&(out_regs->doepdma),(uint32_t)dwc_ep->iso_dma_desc_addr); -+ -+ } -+ /** ISO IN EP */ -+ else { -+ desc_sts_data_t sts = { .d32 =0 }; -+ dwc_otg_dma_desc_t* dma_desc = dwc_ep->iso_desc_addr; -+ dma_addr_t dma_ad; -+ dwc_otg_dev_in_ep_regs_t *in_regs = -+ core_if->dev_if->in_ep_regs[dwc_ep->num]; -+ unsigned int frmnumber; -+ fifosize_data_t txfifosize,rxfifosize; -+ -+ txfifosize.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[dwc_ep->num]->dtxfsts); -+ rxfifosize.d32 = dwc_read_reg32(&core_if->core_global_regs->grxfsiz); -+ -+ -+ addr = &core_if->dev_if->in_ep_regs[dwc_ep->num]->diepctl; -+ -+ dma_ad = dwc_ep->dma_addr0; -+ -+ dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); -+ -+ sts.b_iso_in.bs = BS_HOST_READY; -+ sts.b_iso_in.txsts = 0; -+ sts.b_iso_in.sp = (dwc_ep->data_per_frame % dwc_ep->maxpacket)? 1 : 0; -+ sts.b_iso_in.ioc = 0; -+ sts.b_iso_in.pid = dwc_ep->pkt_per_frm; -+ -+ -+ frmnumber = dwc_ep->next_frame; -+ -+ sts.b_iso_in.framenum = frmnumber; -+ sts.b_iso_in.txbytes = dwc_ep->data_per_frame; -+ sts.b_iso_in.l = 0; -+ -+ /** Buffer 0 descriptors setup */ -+ for(i = 0; i < dwc_ep->desc_cnt - 1; i++) -+ { -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ dma_desc ++; -+ -+ //(uint32_t)dma_ad += dwc_ep->data_per_frame; -+ dma_ad = (uint32_t)dma_ad + dwc_ep->data_per_frame; -+ sts.b_iso_in.framenum += dwc_ep->bInterval; -+ } -+ -+ sts.b_iso_in.ioc = 1; -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ ++dma_desc; -+ -+ /** Buffer 1 descriptors setup */ -+ sts.b_iso_in.ioc = 0; -+ dma_ad = dwc_ep->dma_addr1; -+ -+ for(i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; i+= dwc_ep->pkt_per_frm) -+ { -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ dma_desc ++; -+ -+ //(uint32_t)dma_ad += dwc_ep->data_per_frame; -+ dma_ad = (uint32_t)dma_ad + dwc_ep->data_per_frame; -+ sts.b_iso_in.framenum += dwc_ep->bInterval; -+ -+ sts.b_iso_in.ioc = 0; -+ } -+ sts.b_iso_in.ioc = 1; -+ sts.b_iso_in.l = 1; -+ -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ -+ dwc_ep->next_frame = sts.b_iso_in.framenum + dwc_ep->bInterval; -+ -+ /** Write dma_ad into diepdma register */ -+ dwc_write_reg32(&(in_regs->diepdma),(uint32_t)dwc_ep->iso_dma_desc_addr); -+ } -+ /** Enable endpoint, clear nak */ -+ depctl.d32 = 0; -+ depctl.b.epena = 1; -+ depctl.b.usbactep = 1; -+ depctl.b.cnak = 1; -+ -+ dwc_modify_reg32(addr, depctl.d32,depctl.d32); -+ depctl.d32 = dwc_read_reg32(addr); -+} -+ -+/** -+ * This function initializes a descriptor chain for Isochronous transfer -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to start the transfer on. -+ * -+ */ -+ -+void dwc_otg_iso_ep_start_buf_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ depctl_data_t depctl = { .d32 = 0 }; -+ volatile uint32_t *addr; -+ -+ -+ if(ep->is_in) { -+ addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; -+ } else { -+ addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; -+ } -+ -+ -+ if(core_if->dma_enable == 0 || core_if->dma_desc_enable!= 0) { -+ return; -+ } else { -+ deptsiz_data_t deptsiz = { .d32 = 0 }; -+ -+ ep->xfer_len = ep->data_per_frame * ep->buf_proc_intrvl / ep->bInterval; -+ ep->pkt_cnt = (ep->xfer_len - 1 + ep->maxpacket) / -+ ep->maxpacket; -+ ep->xfer_count = 0; -+ ep->xfer_buff = (ep->proc_buf_num) ? ep->xfer_buff1 : ep->xfer_buff0; -+ ep->dma_addr = (ep->proc_buf_num) ? ep->dma_addr1 : ep->dma_addr0; -+ -+ if(ep->is_in) { -+ /* Program the transfer size and packet count -+ * as follows: xfersize = N * maxpacket + -+ * short_packet pktcnt = N + (short_packet -+ * exist ? 1 : 0) -+ */ -+ deptsiz.b.mc = ep->pkt_per_frm; -+ deptsiz.b.xfersize = ep->xfer_len; -+ deptsiz.b.pktcnt = -+ (ep->xfer_len - 1 + ep->maxpacket) / -+ ep->maxpacket; -+ dwc_write_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz, deptsiz.d32); -+ -+ /* Write the DMA register */ -+ dwc_write_reg32 (&(core_if->dev_if->in_ep_regs[ep->num]->diepdma), (uint32_t)ep->dma_addr); -+ -+ } else { -+ deptsiz.b.pktcnt = -+ (ep->xfer_len + (ep->maxpacket - 1)) / -+ ep->maxpacket; -+ deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket; -+ -+ dwc_write_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doeptsiz, deptsiz.d32); -+ -+ /* Write the DMA register */ -+ dwc_write_reg32 (&(core_if->dev_if->out_ep_regs[ep->num]->doepdma), (uint32_t)ep->dma_addr); -+ -+ } -+ /** Enable endpoint, clear nak */ -+ depctl.d32 = 0; -+ dwc_modify_reg32(addr, depctl.d32,depctl.d32); -+ -+ depctl.b.epena = 1; -+ depctl.b.cnak = 1; -+ -+ dwc_modify_reg32(addr, depctl.d32,depctl.d32); -+ } -+} -+ -+ -+/** -+ * This function does the setup for a data transfer for an EP and -+ * starts the transfer. For an IN transfer, the packets will be -+ * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, -+ * the packets are unloaded from the Rx FIFO in the ISR. the ISR. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to start the transfer on. -+ */ -+ -+void dwc_otg_iso_ep_start_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ if(core_if->dma_enable) { -+ if(core_if->dma_desc_enable) { -+ if(ep->is_in) { -+ ep->desc_cnt = ep->pkt_cnt / ep->pkt_per_frm; -+ } else { -+ ep->desc_cnt = ep->pkt_cnt; -+ } -+ dwc_otg_iso_ep_start_ddma_transfer(core_if, ep); -+ } else { -+ if(core_if->pti_enh_enable) { -+ dwc_otg_iso_ep_start_buf_transfer(core_if, ep); -+ } else { -+ ep->cur_pkt_addr = (ep->proc_buf_num) ? ep->xfer_buff1 : ep->xfer_buff0; -+ ep->cur_pkt_dma_addr = (ep->proc_buf_num) ? ep->dma_addr1 : ep->dma_addr0; -+ dwc_otg_iso_ep_start_frm_transfer(core_if, ep); -+ } -+ } -+ } else { -+ ep->cur_pkt_addr = (ep->proc_buf_num) ? ep->xfer_buff1 : ep->xfer_buff0; -+ ep->cur_pkt_dma_addr = (ep->proc_buf_num) ? ep->dma_addr1 : ep->dma_addr0; -+ dwc_otg_iso_ep_start_frm_transfer(core_if, ep); -+ } -+} -+ -+/** -+ * This function does the setup for a data transfer for an EP and -+ * starts the transfer. For an IN transfer, the packets will be -+ * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, -+ * the packets are unloaded from the Rx FIFO in the ISR. the ISR. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to start the transfer on. -+ */ -+ -+void dwc_otg_iso_ep_stop_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ depctl_data_t depctl = { .d32 = 0 }; -+ volatile uint32_t *addr; -+ -+ if(ep->is_in == 1) { -+ addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; -+ } -+ else { -+ addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; -+ } -+ -+ /* disable the ep */ -+ depctl.d32 = dwc_read_reg32(addr); -+ -+ depctl.b.epdis = 1; -+ depctl.b.snak = 1; -+ -+ dwc_write_reg32(addr, depctl.d32); -+ -+ if(core_if->dma_desc_enable && -+ ep->iso_desc_addr && ep->iso_dma_desc_addr) { -+ dwc_otg_ep_free_desc_chain(ep->iso_desc_addr,ep->iso_dma_desc_addr,ep->desc_cnt * 2); -+ } -+ -+ /* reset varibales */ -+ ep->dma_addr0 = 0; -+ ep->dma_addr1 = 0; -+ ep->xfer_buff0 = 0; -+ ep->xfer_buff1 = 0; -+ ep->data_per_frame = 0; -+ ep->data_pattern_frame = 0; -+ ep->sync_frame = 0; -+ ep->buf_proc_intrvl = 0; -+ ep->bInterval = 0; -+ ep->proc_buf_num = 0; -+ ep->pkt_per_frm = 0; -+ ep->pkt_per_frm = 0; -+ ep->desc_cnt = 0; -+ ep->iso_desc_addr = 0; -+ ep->iso_dma_desc_addr = 0; -+} -+ -+ -+/** -+ * This function is used to submit an ISOC Transfer Request to an EP. -+ * -+ * - Every time a sync period completes the request's completion callback -+ * is called to provide data to the gadget driver. -+ * - Once submitted the request cannot be modified. -+ * - Each request is turned into periodic data packets untill ISO -+ * Transfer is stopped.. -+ */ -+static int dwc_otg_pcd_iso_ep_start(struct usb_ep *usb_ep, struct usb_iso_request *req, -+ gfp_t gfp_flags) -+{ -+ dwc_otg_pcd_ep_t *ep; -+ dwc_otg_pcd_t *pcd; -+ dwc_ep_t *dwc_ep; -+ unsigned long flags = 0; -+ int32_t frm_data; -+ dwc_otg_core_if_t *core_if; -+ dcfg_data_t dcfg; -+ dsts_data_t dsts; -+ -+ -+ if (!req || !req->process_buffer || !req->buf0 || !req->buf1) { -+ DWC_WARN("%s, bad params\n", __func__); -+ return -EINVAL; -+ } -+ -+ ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); -+ -+ if (!usb_ep || !ep->desc || ep->dwc_ep.num == 0) { -+ DWC_WARN("%s, bad ep\n", __func__); -+ return -EINVAL; -+ } -+ -+ pcd = ep->pcd; -+ core_if = GET_CORE_IF(pcd); -+ -+ dcfg.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dcfg); -+ -+ if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) { -+ DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n", pcd->gadget.speed); -+ DWC_WARN("%s, bogus device state\n", __func__); -+ return -ESHUTDOWN; -+ } -+ -+ SPIN_LOCK_IRQSAVE(&ep->pcd->lock, flags); -+ -+ dwc_ep = &ep->dwc_ep; -+ -+ if(ep->iso_req) { -+ DWC_WARN("%s, iso request in progress\n", __func__); -+ } -+ req->status = -EINPROGRESS; -+ -+ dwc_ep->dma_addr0 = req->dma0; -+ dwc_ep->dma_addr1 = req->dma1; -+ -+ dwc_ep->xfer_buff0 = req->buf0; -+ dwc_ep->xfer_buff1 = req->buf1; -+ -+ ep->iso_req = req; -+ -+ dwc_ep->data_per_frame = req->data_per_frame; -+ -+ /** @todo - pattern data support is to be implemented in the future */ -+ dwc_ep->data_pattern_frame = req->data_pattern_frame; -+ dwc_ep->sync_frame = req->sync_frame; -+ -+ dwc_ep->buf_proc_intrvl = req->buf_proc_intrvl; -+ -+ dwc_ep->bInterval = 1 << (ep->desc->bInterval - 1); -+ -+ dwc_ep->proc_buf_num = 0; -+ -+ dwc_ep->pkt_per_frm = 0; -+ frm_data = ep->dwc_ep.data_per_frame; -+ while(frm_data > 0) { -+ dwc_ep->pkt_per_frm++; -+ frm_data -= ep->dwc_ep.maxpacket; -+ } -+ -+ dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); -+ -+ if(req->flags & USB_REQ_ISO_ASAP) { -+ dwc_ep->next_frame = dsts.b.soffn + 1; -+ if(dwc_ep->bInterval != 1){ -+ dwc_ep->next_frame = dwc_ep->next_frame + (dwc_ep->bInterval - 1 - dwc_ep->next_frame % dwc_ep->bInterval); -+ } -+ } else { -+ dwc_ep->next_frame = req->start_frame; -+ } -+ -+ -+ if(!core_if->pti_enh_enable) { -+ dwc_ep->pkt_cnt = dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm / dwc_ep->bInterval; -+ } else { -+ dwc_ep->pkt_cnt = -+ (dwc_ep->data_per_frame * (dwc_ep->buf_proc_intrvl / dwc_ep->bInterval) -+ - 1 + dwc_ep->maxpacket) / dwc_ep->maxpacket; -+ } -+ -+ if(core_if->dma_desc_enable) { -+ dwc_ep->desc_cnt = -+ dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm / dwc_ep->bInterval; -+ } -+ -+ dwc_ep->pkt_info = kmalloc(sizeof(iso_pkt_info_t) * dwc_ep->pkt_cnt, GFP_KERNEL); -+ if(!dwc_ep->pkt_info) { -+ return -ENOMEM; -+ } -+ if(core_if->pti_enh_enable) { -+ memset(dwc_ep->pkt_info, 0, sizeof(iso_pkt_info_t) * dwc_ep->pkt_cnt); -+ } -+ -+ dwc_ep->cur_pkt = 0; -+ -+ SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); -+ -+ dwc_otg_iso_ep_start_transfer(core_if, dwc_ep); -+ -+ return 0; -+} -+ -+/** -+ * This function stops ISO EP Periodic Data Transfer. -+ */ -+static int dwc_otg_pcd_iso_ep_stop(struct usb_ep *usb_ep, struct usb_iso_request *req) -+{ -+ dwc_otg_pcd_ep_t *ep; -+ dwc_otg_pcd_t *pcd; -+ dwc_ep_t *dwc_ep; -+ unsigned long flags; -+ -+ ep = container_of(usb_ep, dwc_otg_pcd_ep_t, ep); -+ -+ if (!usb_ep || !ep->desc || ep->dwc_ep.num == 0) { -+ DWC_WARN("%s, bad ep\n", __func__); -+ return -EINVAL; -+ } -+ -+ pcd = ep->pcd; -+ -+ if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) { -+ DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n", pcd->gadget.speed); -+ DWC_WARN("%s, bogus device state\n", __func__); -+ return -ESHUTDOWN; -+ } -+ -+ dwc_ep = &ep->dwc_ep; -+ -+ dwc_otg_iso_ep_stop_transfer(GET_CORE_IF(pcd), dwc_ep); -+ -+ kfree(dwc_ep->pkt_info); -+ -+ SPIN_LOCK_IRQSAVE(&pcd->lock, flags); -+ -+ if(ep->iso_req != req) { -+ return -EINVAL; -+ } -+ -+ req->status = -ECONNRESET; -+ -+ SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); -+ -+ -+ ep->iso_req = 0; -+ -+ return 0; -+} -+ -+/** -+ * This function is used for perodical data exchnage between PCD and gadget drivers. -+ * for Isochronous EPs -+ * -+ * - Every time a sync period completes this function is called to -+ * perform data exchange between PCD and gadget -+ */ -+void dwc_otg_iso_buffer_done(dwc_otg_pcd_ep_t *ep, dwc_otg_pcd_iso_request_t *req) -+{ -+ int i; -+ struct usb_gadget_iso_packet_descriptor *iso_packet; -+ dwc_ep_t *dwc_ep; -+ -+ dwc_ep = &ep->dwc_ep; -+ -+ if(ep->iso_req->status == -ECONNRESET) { -+ DWC_PRINT("Device has already disconnected\n"); -+ /*Device has been disconnected*/ -+ return; -+ } -+ -+ if(dwc_ep->proc_buf_num != 0) { -+ iso_packet = ep->iso_req->iso_packet_desc0; -+ } -+ -+ else { -+ iso_packet = ep->iso_req->iso_packet_desc1; -+ } -+ -+ /* Fill in ISOC packets descriptors & pass to gadget driver*/ -+ -+ for(i = 0; i < dwc_ep->pkt_cnt; ++i) { -+ iso_packet[i].status = dwc_ep->pkt_info[i].status; -+ iso_packet[i].offset = dwc_ep->pkt_info[i].offset; -+ iso_packet[i].actual_length = dwc_ep->pkt_info[i].length; -+ dwc_ep->pkt_info[i].status = 0; -+ dwc_ep->pkt_info[i].offset = 0; -+ dwc_ep->pkt_info[i].length = 0; -+ } -+ -+ /* Call callback function to process data buffer */ -+ ep->iso_req->status = 0;/* success */ -+ -+ SPIN_UNLOCK(&ep->pcd->lock); -+ ep->iso_req->process_buffer(&ep->ep, ep->iso_req); -+ SPIN_LOCK(&ep->pcd->lock); -+} -+ -+ -+static struct usb_iso_request *dwc_otg_pcd_alloc_iso_request(struct usb_ep *ep,int packets, -+ gfp_t gfp_flags) -+{ -+ struct usb_iso_request *pReq = NULL; -+ uint32_t req_size; -+ -+ -+ req_size = sizeof(struct usb_iso_request); -+ req_size += (2 * packets * (sizeof(struct usb_gadget_iso_packet_descriptor))); -+ -+ -+ pReq = kmalloc(req_size, gfp_flags); -+ if (!pReq) { -+ DWC_WARN("%s, can't allocate Iso Request\n", __func__); -+ return 0; -+ } -+ pReq->iso_packet_desc0 = (void*) (pReq + 1); -+ -+ pReq->iso_packet_desc1 = pReq->iso_packet_desc0 + packets; -+ -+ return pReq; -+} -+ -+static void dwc_otg_pcd_free_iso_request(struct usb_ep *ep, struct usb_iso_request *req) -+{ -+ kfree(req); -+} -+ -+static struct usb_isoc_ep_ops dwc_otg_pcd_ep_ops = -+{ -+ .ep_ops = -+ { -+ .enable = dwc_otg_pcd_ep_enable, -+ .disable = dwc_otg_pcd_ep_disable, -+ -+ .alloc_request = dwc_otg_pcd_alloc_request, -+ .free_request = dwc_otg_pcd_free_request, -+ -+ //.alloc_buffer = dwc_otg_pcd_alloc_buffer, -+ //.free_buffer = dwc_otg_pcd_free_buffer, -+ -+ .queue = dwc_otg_pcd_ep_queue, -+ .dequeue = dwc_otg_pcd_ep_dequeue, -+ -+ .set_halt = dwc_otg_pcd_ep_set_halt, -+ .fifo_status = 0, -+ .fifo_flush = 0, -+ }, -+ .iso_ep_start = dwc_otg_pcd_iso_ep_start, -+ .iso_ep_stop = dwc_otg_pcd_iso_ep_stop, -+ .alloc_iso_request = dwc_otg_pcd_alloc_iso_request, -+ .free_iso_request = dwc_otg_pcd_free_iso_request, -+}; -+ -+#else -+ -+ -+static struct usb_ep_ops dwc_otg_pcd_ep_ops = -+{ -+ .enable = dwc_otg_pcd_ep_enable, -+ .disable = dwc_otg_pcd_ep_disable, -+ -+ .alloc_request = dwc_otg_pcd_alloc_request, -+ .free_request = dwc_otg_pcd_free_request, -+ -+// .alloc_buffer = dwc_otg_pcd_alloc_buffer, -+// .free_buffer = dwc_otg_pcd_free_buffer, -+ -+ .queue = dwc_otg_pcd_ep_queue, -+ .dequeue = dwc_otg_pcd_ep_dequeue, -+ -+ .set_halt = dwc_otg_pcd_ep_set_halt, -+ .fifo_status = 0, -+ .fifo_flush = 0, -+ -+ -+}; -+ -+#endif /* DWC_EN_ISOC */ -+/* Gadget Operations */ -+/** -+ * The following gadget operations will be implemented in the DWC_otg -+ * PCD. Functions in the API that are not described below are not -+ * implemented. -+ * -+ * The Gadget API provides wrapper functions for each of the function -+ * pointers defined in usb_gadget_ops. The Gadget Driver calls the -+ * wrapper function, which then calls the underlying PCD function. The -+ * following sections are named according to the wrapper functions -+ * (except for ioctl, which doesn't have a wrapper function). Within -+ * each section, the corresponding DWC_otg PCD function name is -+ * specified. -+ * -+ */ -+ -+/** -+ *Gets the USB Frame number of the last SOF. -+ */ -+static int dwc_otg_pcd_get_frame(struct usb_gadget *gadget) -+{ -+ dwc_otg_pcd_t *pcd; -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, gadget); -+ -+ if (gadget == 0) { -+ return -ENODEV; -+ } -+ else { -+ pcd = container_of(gadget, dwc_otg_pcd_t, gadget); -+ dwc_otg_get_frame_number(GET_CORE_IF(pcd)); -+ } -+ -+ return 0; -+} -+ -+void dwc_otg_pcd_initiate_srp(dwc_otg_pcd_t *pcd) -+{ -+ uint32_t *addr = (uint32_t *)&(GET_CORE_IF(pcd)->core_global_regs->gotgctl); -+ gotgctl_data_t mem; -+ gotgctl_data_t val; -+ -+ val.d32 = dwc_read_reg32(addr); -+ if (val.b.sesreq) { -+ DWC_ERROR("Session Request Already active!\n"); -+ return; -+ } -+ -+ DWC_NOTICE("Session Request Initated\n"); -+ mem.d32 = dwc_read_reg32(addr); -+ mem.b.sesreq = 1; -+ dwc_write_reg32(addr, mem.d32); -+ -+ /* Start the SRP timer */ -+ dwc_otg_pcd_start_srp_timer(pcd); -+ return; -+} -+ -+void dwc_otg_pcd_remote_wakeup(dwc_otg_pcd_t *pcd, int set) -+{ -+ dctl_data_t dctl = {.d32=0}; -+ volatile uint32_t *addr = &(GET_CORE_IF(pcd)->dev_if->dev_global_regs->dctl); -+ -+ if (dwc_otg_is_device_mode(GET_CORE_IF(pcd))) { -+ if (pcd->remote_wakeup_enable) { -+ if (set) { -+ dctl.b.rmtwkupsig = 1; -+ dwc_modify_reg32(addr, 0, dctl.d32); -+ DWC_DEBUGPL(DBG_PCD, "Set Remote Wakeup\n"); -+ mdelay(1); -+ dwc_modify_reg32(addr, dctl.d32, 0); -+ DWC_DEBUGPL(DBG_PCD, "Clear Remote Wakeup\n"); -+ } -+ else { -+ } -+ } -+ else { -+ DWC_DEBUGPL(DBG_PCD, "Remote Wakeup is disabled\n"); -+ } -+ } -+ return; -+} -+ -+/** -+ * Initiates Session Request Protocol (SRP) to wakeup the host if no -+ * session is in progress. If a session is already in progress, but -+ * the device is suspended, remote wakeup signaling is started. -+ * -+ */ -+static int dwc_otg_pcd_wakeup(struct usb_gadget *gadget) -+{ -+ unsigned long flags; -+ dwc_otg_pcd_t *pcd; -+ dsts_data_t dsts; -+ gotgctl_data_t gotgctl; -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, gadget); -+ -+ if (gadget == 0) { -+ return -ENODEV; -+ } -+ else { -+ pcd = container_of(gadget, dwc_otg_pcd_t, gadget); -+ } -+ SPIN_LOCK_IRQSAVE(&pcd->lock, flags); -+ -+ /* -+ * This function starts the Protocol if no session is in progress. If -+ * a session is already in progress, but the device is suspended, -+ * remote wakeup signaling is started. -+ */ -+ -+ /* Check if valid session */ -+ gotgctl.d32 = dwc_read_reg32(&(GET_CORE_IF(pcd)->core_global_regs->gotgctl)); -+ if (gotgctl.b.bsesvld) { -+ /* Check if suspend state */ -+ dsts.d32 = dwc_read_reg32(&(GET_CORE_IF(pcd)->dev_if->dev_global_regs->dsts)); -+ if (dsts.b.suspsts) { -+ dwc_otg_pcd_remote_wakeup(pcd, 1); -+ } -+ } -+ else { -+ dwc_otg_pcd_initiate_srp(pcd); -+ } -+ -+ SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags); -+ return 0; -+} -+ -+static const struct usb_gadget_ops dwc_otg_pcd_ops = -+{ -+ .get_frame = dwc_otg_pcd_get_frame, -+ .wakeup = dwc_otg_pcd_wakeup, -+ // current versions must always be self-powered -+}; -+ -+/** -+ * This function updates the otg values in the gadget structure. -+ */ -+void dwc_otg_pcd_update_otg(dwc_otg_pcd_t *pcd, const unsigned reset) -+{ -+ -+ if (!pcd->gadget.is_otg) -+ return; -+ -+ if (reset) { -+ pcd->b_hnp_enable = 0; -+ pcd->a_hnp_support = 0; -+ pcd->a_alt_hnp_support = 0; -+ } -+ -+ pcd->gadget.b_hnp_enable = pcd->b_hnp_enable; -+ pcd->gadget.a_hnp_support = pcd->a_hnp_support; -+ pcd->gadget.a_alt_hnp_support = pcd->a_alt_hnp_support; -+} -+ -+/** -+ * This function is the top level PCD interrupt handler. -+ */ -+static irqreturn_t dwc_otg_pcd_irq(int irq, void *dev) -+{ -+ dwc_otg_pcd_t *pcd = dev; -+ int32_t retval = IRQ_NONE; -+ -+ retval = dwc_otg_pcd_handle_intr(pcd); -+ return IRQ_RETVAL(retval); -+} -+ -+/** -+ * PCD Callback function for initializing the PCD when switching to -+ * device mode. -+ * -+ * @param p void pointer to the <code>dwc_otg_pcd_t</code> -+ */ -+static int32_t dwc_otg_pcd_start_cb(void *p) -+{ -+ dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)p; -+ -+ /* -+ * Initialized the Core for Device mode. -+ */ -+ if (dwc_otg_is_device_mode(GET_CORE_IF(pcd))) { -+ dwc_otg_core_dev_init(GET_CORE_IF(pcd)); -+ } -+ return 1; -+} -+ -+/** -+ * PCD Callback function for stopping the PCD when switching to Host -+ * mode. -+ * -+ * @param p void pointer to the <code>dwc_otg_pcd_t</code> -+ */ -+static int32_t dwc_otg_pcd_stop_cb(void *p) -+{ -+ dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)p; -+ extern void dwc_otg_pcd_stop(dwc_otg_pcd_t *_pcd); -+ -+ dwc_otg_pcd_stop(pcd); -+ return 1; -+} -+ -+ -+/** -+ * PCD Callback function for notifying the PCD when resuming from -+ * suspend. -+ * -+ * @param p void pointer to the <code>dwc_otg_pcd_t</code> -+ */ -+static int32_t dwc_otg_pcd_suspend_cb(void *p) -+{ -+ dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)p; -+ -+ if (pcd->driver && pcd->driver->resume) { -+ SPIN_UNLOCK(&pcd->lock); -+ pcd->driver->suspend(&pcd->gadget); -+ SPIN_LOCK(&pcd->lock); -+ } -+ -+ return 1; -+} -+ -+ -+/** -+ * PCD Callback function for notifying the PCD when resuming from -+ * suspend. -+ * -+ * @param p void pointer to the <code>dwc_otg_pcd_t</code> -+ */ -+static int32_t dwc_otg_pcd_resume_cb(void *p) -+{ -+ dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)p; -+ -+ if (pcd->driver && pcd->driver->resume) { -+ SPIN_UNLOCK(&pcd->lock); -+ pcd->driver->resume(&pcd->gadget); -+ SPIN_LOCK(&pcd->lock); -+ } -+ -+ /* Stop the SRP timeout timer. */ -+ if ((GET_CORE_IF(pcd)->core_params->phy_type != DWC_PHY_TYPE_PARAM_FS) || -+ (!GET_CORE_IF(pcd)->core_params->i2c_enable)) { -+ if (GET_CORE_IF(pcd)->srp_timer_started) { -+ GET_CORE_IF(pcd)->srp_timer_started = 0; -+ del_timer(&pcd->srp_timer); -+ } -+ } -+ return 1; -+} -+ -+ -+/** -+ * PCD Callback structure for handling mode switching. -+ */ -+static dwc_otg_cil_callbacks_t pcd_callbacks = -+{ -+ .start = dwc_otg_pcd_start_cb, -+ .stop = dwc_otg_pcd_stop_cb, -+ .suspend = dwc_otg_pcd_suspend_cb, -+ .resume_wakeup = dwc_otg_pcd_resume_cb, -+ .p = 0, /* Set at registration */ -+}; -+ -+/** -+ * This function is called when the SRP timer expires. The SRP should -+ * complete within 6 seconds. -+ */ -+static void srp_timeout(unsigned long ptr) -+{ -+ gotgctl_data_t gotgctl; -+ dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *)ptr; -+ volatile uint32_t *addr = &core_if->core_global_regs->gotgctl; -+ -+ gotgctl.d32 = dwc_read_reg32(addr); -+ -+ core_if->srp_timer_started = 0; -+ -+ if ((core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS) && -+ (core_if->core_params->i2c_enable)) { -+ DWC_PRINT("SRP Timeout\n"); -+ -+ if ((core_if->srp_success) && -+ (gotgctl.b.bsesvld)) { -+ if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) { -+ core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p); -+ } -+ -+ /* Clear Session Request */ -+ gotgctl.d32 = 0; -+ gotgctl.b.sesreq = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gotgctl, -+ gotgctl.d32, 0); -+ -+ core_if->srp_success = 0; -+ } -+ else { -+ DWC_ERROR("Device not connected/responding\n"); -+ gotgctl.b.sesreq = 0; -+ dwc_write_reg32(addr, gotgctl.d32); -+ } -+ } -+ else if (gotgctl.b.sesreq) { -+ DWC_PRINT("SRP Timeout\n"); -+ -+ DWC_ERROR("Device not connected/responding\n"); -+ gotgctl.b.sesreq = 0; -+ dwc_write_reg32(addr, gotgctl.d32); -+ } -+ else { -+ DWC_PRINT(" SRP GOTGCTL=%0x\n", gotgctl.d32); -+ } -+} -+ -+/** -+ * Start the SRP timer to detect when the SRP does not complete within -+ * 6 seconds. -+ * -+ * @param pcd the pcd structure. -+ */ -+void dwc_otg_pcd_start_srp_timer(dwc_otg_pcd_t *pcd) -+{ -+ struct timer_list *srp_timer = &pcd->srp_timer; -+ GET_CORE_IF(pcd)->srp_timer_started = 1; -+ init_timer(srp_timer); -+ srp_timer->function = srp_timeout; -+ srp_timer->data = (unsigned long)GET_CORE_IF(pcd); -+ srp_timer->expires = jiffies + (HZ*6); -+ add_timer(srp_timer); -+} -+ -+/** -+ * Tasklet -+ * -+ */ -+extern void start_next_request(dwc_otg_pcd_ep_t *ep); -+ -+static void start_xfer_tasklet_func (unsigned long data) -+{ -+ dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t*)data; -+ dwc_otg_core_if_t *core_if = pcd->otg_dev->core_if; -+ -+ int i; -+ depctl_data_t diepctl; -+ -+ DWC_DEBUGPL(DBG_PCDV, "Start xfer tasklet\n"); -+ -+ diepctl.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[0]->diepctl); -+ -+ if (pcd->ep0.queue_sof) { -+ pcd->ep0.queue_sof = 0; -+ start_next_request (&pcd->ep0); -+ // break; -+ } -+ -+ for (i=0; i<core_if->dev_if->num_in_eps; i++) -+ { -+ depctl_data_t diepctl; -+ diepctl.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[i]->diepctl); -+ -+ if (pcd->in_ep[i].queue_sof) { -+ pcd->in_ep[i].queue_sof = 0; -+ start_next_request (&pcd->in_ep[i]); -+ // break; -+ } -+ } -+ -+ return; -+} -+ -+ -+ -+ -+ -+ -+ -+static struct tasklet_struct start_xfer_tasklet = { -+ .next = NULL, -+ .state = 0, -+ .count = ATOMIC_INIT(0), -+ .func = start_xfer_tasklet_func, -+ .data = 0, -+}; -+/** -+ * This function initialized the pcd Dp structures to there default -+ * state. -+ * -+ * @param pcd the pcd structure. -+ */ -+void dwc_otg_pcd_reinit(dwc_otg_pcd_t *pcd) -+{ -+ static const char * names[] = -+ { -+ -+ "ep0", -+ "ep1in", -+ "ep2in", -+ "ep3in", -+ "ep4in", -+ "ep5in", -+ "ep6in", -+ "ep7in", -+ "ep8in", -+ "ep9in", -+ "ep10in", -+ "ep11in", -+ "ep12in", -+ "ep13in", -+ "ep14in", -+ "ep15in", -+ "ep1out", -+ "ep2out", -+ "ep3out", -+ "ep4out", -+ "ep5out", -+ "ep6out", -+ "ep7out", -+ "ep8out", -+ "ep9out", -+ "ep10out", -+ "ep11out", -+ "ep12out", -+ "ep13out", -+ "ep14out", -+ "ep15out" -+ -+ }; -+ -+ int i; -+ int in_ep_cntr, out_ep_cntr; -+ uint32_t hwcfg1; -+ uint32_t num_in_eps = (GET_CORE_IF(pcd))->dev_if->num_in_eps; -+ uint32_t num_out_eps = (GET_CORE_IF(pcd))->dev_if->num_out_eps; -+ dwc_otg_pcd_ep_t *ep; -+ -+ DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, pcd); -+ -+ INIT_LIST_HEAD (&pcd->gadget.ep_list); -+ pcd->gadget.ep0 = &pcd->ep0.ep; -+ pcd->gadget.speed = USB_SPEED_UNKNOWN; -+ -+ INIT_LIST_HEAD (&pcd->gadget.ep0->ep_list); -+ -+ /** -+ * Initialize the EP0 structure. -+ */ -+ ep = &pcd->ep0; -+ -+ /* Init EP structure */ -+ ep->desc = 0; -+ ep->pcd = pcd; -+ ep->stopped = 1; -+ -+ /* Init DWC ep structure */ -+ ep->dwc_ep.num = 0; -+ ep->dwc_ep.active = 0; -+ ep->dwc_ep.tx_fifo_num = 0; -+ /* Control until ep is actvated */ -+ ep->dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL; -+ ep->dwc_ep.maxpacket = MAX_PACKET_SIZE; -+ ep->dwc_ep.dma_addr = 0; -+ ep->dwc_ep.start_xfer_buff = 0; -+ ep->dwc_ep.xfer_buff = 0; -+ ep->dwc_ep.xfer_len = 0; -+ ep->dwc_ep.xfer_count = 0; -+ ep->dwc_ep.sent_zlp = 0; -+ ep->dwc_ep.total_len = 0; -+ ep->queue_sof = 0; -+ ep->dwc_ep.desc_addr = 0; -+ ep->dwc_ep.dma_desc_addr = 0; -+ -+ ep->dwc_ep.aligned_buf=NULL; -+ ep->dwc_ep.aligned_buf_size=0; -+ ep->dwc_ep.aligned_dma_addr=0; -+ -+ -+ /* Init the usb_ep structure. */ -+ ep->ep.name = names[0]; -+ ep->ep.ops = (struct usb_ep_ops*)&dwc_otg_pcd_ep_ops; -+ -+ /** -+ * @todo NGS: What should the max packet size be set to -+ * here? Before EP type is set? -+ */ -+ ep->ep.maxpacket = MAX_PACKET_SIZE; -+ -+ list_add_tail (&ep->ep.ep_list, &pcd->gadget.ep_list); -+ -+ INIT_LIST_HEAD (&ep->queue); -+ /** -+ * Initialize the EP structures. -+ */ -+ in_ep_cntr = 0; -+ hwcfg1 = (GET_CORE_IF(pcd))->hwcfg1.d32 >> 3; -+ -+ for (i = 1; in_ep_cntr < num_in_eps; i++) -+ { -+ if((hwcfg1 & 0x1) == 0) { -+ dwc_otg_pcd_ep_t *ep = &pcd->in_ep[in_ep_cntr]; -+ in_ep_cntr ++; -+ -+ /* Init EP structure */ -+ ep->desc = 0; -+ ep->pcd = pcd; -+ ep->stopped = 1; -+ -+ /* Init DWC ep structure */ -+ ep->dwc_ep.is_in = 1; -+ ep->dwc_ep.num = i; -+ ep->dwc_ep.active = 0; -+ ep->dwc_ep.tx_fifo_num = 0; -+ -+ /* Control until ep is actvated */ -+ ep->dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL; -+ ep->dwc_ep.maxpacket = MAX_PACKET_SIZE; -+ ep->dwc_ep.dma_addr = 0; -+ ep->dwc_ep.start_xfer_buff = 0; -+ ep->dwc_ep.xfer_buff = 0; -+ ep->dwc_ep.xfer_len = 0; -+ ep->dwc_ep.xfer_count = 0; -+ ep->dwc_ep.sent_zlp = 0; -+ ep->dwc_ep.total_len = 0; -+ ep->queue_sof = 0; -+ ep->dwc_ep.desc_addr = 0; -+ ep->dwc_ep.dma_desc_addr = 0; -+ -+ /* Init the usb_ep structure. */ -+ ep->ep.name = names[i]; -+ ep->ep.ops = (struct usb_ep_ops*)&dwc_otg_pcd_ep_ops; -+ -+ /** -+ * @todo NGS: What should the max packet size be set to -+ * here? Before EP type is set? -+ */ -+ ep->ep.maxpacket = MAX_PACKET_SIZE; -+ -+ //add only even number ep as in -+ if((i%2)==1) -+ list_add_tail (&ep->ep.ep_list, &pcd->gadget.ep_list); -+ -+ INIT_LIST_HEAD (&ep->queue); -+ } -+ hwcfg1 >>= 2; -+ } -+ -+ out_ep_cntr = 0; -+ hwcfg1 = (GET_CORE_IF(pcd))->hwcfg1.d32 >> 2; -+ -+ for (i = 1; out_ep_cntr < num_out_eps; i++) -+ { -+ if((hwcfg1 & 0x1) == 0) { -+ dwc_otg_pcd_ep_t *ep = &pcd->out_ep[out_ep_cntr]; -+ out_ep_cntr++; -+ -+ /* Init EP structure */ -+ ep->desc = 0; -+ ep->pcd = pcd; -+ ep->stopped = 1; -+ -+ /* Init DWC ep structure */ -+ ep->dwc_ep.is_in = 0; -+ ep->dwc_ep.num = i; -+ ep->dwc_ep.active = 0; -+ ep->dwc_ep.tx_fifo_num = 0; -+ /* Control until ep is actvated */ -+ ep->dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL; -+ ep->dwc_ep.maxpacket = MAX_PACKET_SIZE; -+ ep->dwc_ep.dma_addr = 0; -+ ep->dwc_ep.start_xfer_buff = 0; -+ ep->dwc_ep.xfer_buff = 0; -+ ep->dwc_ep.xfer_len = 0; -+ ep->dwc_ep.xfer_count = 0; -+ ep->dwc_ep.sent_zlp = 0; -+ ep->dwc_ep.total_len = 0; -+ ep->queue_sof = 0; -+ -+ /* Init the usb_ep structure. */ -+ ep->ep.name = names[15 + i]; -+ ep->ep.ops = (struct usb_ep_ops*)&dwc_otg_pcd_ep_ops; -+ /** -+ * @todo NGS: What should the max packet size be set to -+ * here? Before EP type is set? -+ */ -+ ep->ep.maxpacket = MAX_PACKET_SIZE; -+ -+ //add only odd number ep as out -+ if((i%2)==0) -+ list_add_tail (&ep->ep.ep_list, &pcd->gadget.ep_list); -+ -+ INIT_LIST_HEAD (&ep->queue); -+ } -+ hwcfg1 >>= 2; -+ } -+ -+ /* remove ep0 from the list. There is a ep0 pointer.*/ -+ list_del_init (&pcd->ep0.ep.ep_list); -+ -+ pcd->ep0state = EP0_DISCONNECT; -+ pcd->ep0.ep.maxpacket = MAX_EP0_SIZE; -+ pcd->ep0.dwc_ep.maxpacket = MAX_EP0_SIZE; -+ pcd->ep0.dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL; -+} -+ -+/** -+ * This function releases the Gadget device. -+ * required by device_unregister(). -+ * -+ * @todo Should this do something? Should it free the PCD? -+ */ -+static void dwc_otg_pcd_gadget_release(struct device *dev) -+{ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, dev); -+} -+ -+ -+ -+/** -+ * This function initialized the PCD portion of the driver. -+ * -+ */ -+u8 dev_id[]="gadget"; -+int dwc_otg_pcd_init(struct platform_device *pdev) -+{ -+ static char pcd_name[] = "dwc_otg_pcd"; -+ dwc_otg_pcd_t *pcd; -+ dwc_otg_core_if_t* core_if; -+ dwc_otg_dev_if_t* dev_if; -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); -+ int retval = 0; -+ -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n",__func__, pdev); -+ /* -+ * Allocate PCD structure -+ */ -+ pcd = kmalloc(sizeof(dwc_otg_pcd_t), GFP_KERNEL); -+ -+ if (pcd == 0) { -+ return -ENOMEM; -+ } -+ -+ memset(pcd, 0, sizeof(dwc_otg_pcd_t)); -+ spin_lock_init(&pcd->lock); -+ -+ otg_dev->pcd = pcd; -+ s_pcd = pcd; -+ pcd->gadget.name = pcd_name; -+ -+ pcd->gadget.dev.init_name = dev_id; -+ pcd->otg_dev = platform_get_drvdata(pdev); -+ -+ pcd->gadget.dev.parent = &pdev->dev; -+ pcd->gadget.dev.release = dwc_otg_pcd_gadget_release; -+ pcd->gadget.ops = &dwc_otg_pcd_ops; -+ -+ core_if = GET_CORE_IF(pcd); -+ dev_if = core_if->dev_if; -+ -+ if(core_if->hwcfg4.b.ded_fifo_en) { -+ DWC_PRINT("Dedicated Tx FIFOs mode\n"); -+ } -+ else { -+ DWC_PRINT("Shared Tx FIFO mode\n"); -+ } -+ -+ /* If the module is set to FS or if the PHY_TYPE is FS then the gadget -+ * should not report as dual-speed capable. replace the following line -+ * with the block of code below it once the software is debugged for -+ * this. If is_dualspeed = 0 then the gadget driver should not report -+ * a device qualifier descriptor when queried. */ -+ if ((GET_CORE_IF(pcd)->core_params->speed == DWC_SPEED_PARAM_FULL) || -+ ((GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == 2) && -+ (GET_CORE_IF(pcd)->hwcfg2.b.fs_phy_type == 1) && -+ (GET_CORE_IF(pcd)->core_params->ulpi_fs_ls))) { -+ pcd->gadget.max_speed = USB_SPEED_FULL; -+ } -+ else { -+ pcd->gadget.max_speed = USB_SPEED_HIGH; -+ } -+ -+ if ((otg_dev->core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_DEVICE) || -+ (otg_dev->core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST) || -+ (otg_dev->core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) || -+ (otg_dev->core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) { -+ pcd->gadget.is_otg = 0; -+ } -+ else { -+ pcd->gadget.is_otg = 1; -+ } -+ -+ -+ pcd->driver = 0; -+ /* Register the gadget device */ -+printk("%s: 1\n",__func__); -+ retval = device_register(&pcd->gadget.dev); -+ if (retval != 0) { -+ kfree (pcd); -+printk("%s: 2\n",__func__); -+ return retval; -+ } -+ -+ -+ /* -+ * Initialized the Core for Device mode. -+ */ -+ if (dwc_otg_is_device_mode(core_if)) { -+ dwc_otg_core_dev_init(core_if); -+ } -+ -+ /* -+ * Initialize EP structures -+ */ -+ dwc_otg_pcd_reinit(pcd); -+ -+ /* -+ * Register the PCD Callbacks. -+ */ -+ dwc_otg_cil_register_pcd_callbacks(otg_dev->core_if, &pcd_callbacks, -+ pcd); -+ /* -+ * Setup interupt handler -+ */ -+ DWC_DEBUGPL(DBG_ANY, "registering handler for irq%d\n", otg_dev->irq); -+ retval = request_irq(otg_dev->irq, dwc_otg_pcd_irq, -+ IRQF_SHARED, pcd->gadget.name, pcd); -+ if (retval != 0) { -+ DWC_ERROR("request of irq%d failed\n", otg_dev->irq); -+ device_unregister(&pcd->gadget.dev); -+ kfree (pcd); -+ return -EBUSY; -+ } -+ -+ /* -+ * Initialize the DMA buffer for SETUP packets -+ */ -+ if (GET_CORE_IF(pcd)->dma_enable) { -+ pcd->setup_pkt = dma_alloc_coherent (NULL, sizeof (*pcd->setup_pkt) * 5, &pcd->setup_pkt_dma_handle, 0); -+ if (pcd->setup_pkt == 0) { -+ free_irq(otg_dev->irq, pcd); -+ device_unregister(&pcd->gadget.dev); -+ kfree (pcd); -+ return -ENOMEM; -+ } -+ -+ pcd->status_buf = dma_alloc_coherent (NULL, sizeof (uint16_t), &pcd->status_buf_dma_handle, 0); -+ if (pcd->status_buf == 0) { -+ dma_free_coherent(NULL, sizeof(*pcd->setup_pkt), pcd->setup_pkt, pcd->setup_pkt_dma_handle); -+ free_irq(otg_dev->irq, pcd); -+ device_unregister(&pcd->gadget.dev); -+ kfree (pcd); -+ return -ENOMEM; -+ } -+ -+ if (GET_CORE_IF(pcd)->dma_desc_enable) { -+ dev_if->setup_desc_addr[0] = dwc_otg_ep_alloc_desc_chain(&dev_if->dma_setup_desc_addr[0], 1); -+ dev_if->setup_desc_addr[1] = dwc_otg_ep_alloc_desc_chain(&dev_if->dma_setup_desc_addr[1], 1); -+ dev_if->in_desc_addr = dwc_otg_ep_alloc_desc_chain(&dev_if->dma_in_desc_addr, 1); -+ dev_if->out_desc_addr = dwc_otg_ep_alloc_desc_chain(&dev_if->dma_out_desc_addr, 1); -+ -+ if(dev_if->setup_desc_addr[0] == 0 -+ || dev_if->setup_desc_addr[1] == 0 -+ || dev_if->in_desc_addr == 0 -+ || dev_if->out_desc_addr == 0 ) { -+ -+ if(dev_if->out_desc_addr) -+ dwc_otg_ep_free_desc_chain(dev_if->out_desc_addr, dev_if->dma_out_desc_addr, 1); -+ if(dev_if->in_desc_addr) -+ dwc_otg_ep_free_desc_chain(dev_if->in_desc_addr, dev_if->dma_in_desc_addr, 1); -+ if(dev_if->setup_desc_addr[1]) -+ dwc_otg_ep_free_desc_chain(dev_if->setup_desc_addr[1], dev_if->dma_setup_desc_addr[1], 1); -+ if(dev_if->setup_desc_addr[0]) -+ dwc_otg_ep_free_desc_chain(dev_if->setup_desc_addr[0], dev_if->dma_setup_desc_addr[0], 1); -+ -+ -+ dma_free_coherent(NULL, sizeof(*pcd->status_buf), pcd->status_buf, pcd->setup_pkt_dma_handle); -+ dma_free_coherent(NULL, sizeof(*pcd->setup_pkt), pcd->setup_pkt, pcd->setup_pkt_dma_handle); -+ -+ free_irq(otg_dev->irq, pcd); -+ device_unregister(&pcd->gadget.dev); -+ kfree (pcd); -+ -+ return -ENOMEM; -+ } -+ } -+ } -+ else { -+ pcd->setup_pkt = kmalloc (sizeof (*pcd->setup_pkt) * 5, GFP_KERNEL); -+ if (pcd->setup_pkt == 0) { -+ free_irq(otg_dev->irq, pcd); -+ device_unregister(&pcd->gadget.dev); -+ kfree (pcd); -+ return -ENOMEM; -+ } -+ -+ pcd->status_buf = kmalloc (sizeof (uint16_t), GFP_KERNEL); -+ if (pcd->status_buf == 0) { -+ kfree(pcd->setup_pkt); -+ free_irq(otg_dev->irq, pcd); -+ device_unregister(&pcd->gadget.dev); -+ kfree (pcd); -+ return -ENOMEM; -+ } -+ } -+ -+ -+ /* Initialize tasklet */ -+ start_xfer_tasklet.data = (unsigned long)pcd; -+ pcd->start_xfer_tasklet = &start_xfer_tasklet; -+ -+ return 0; -+} -+ -+/** -+ * Cleanup the PCD. -+ */ -+void dwc_otg_pcd_remove(struct platform_device *pdev) -+{ -+ dwc_otg_device_t *otg_dev = platform_get_drvdata(pdev); -+ dwc_otg_pcd_t *pcd = otg_dev->pcd; -+ dwc_otg_dev_if_t* dev_if = GET_CORE_IF(pcd)->dev_if; -+ -+ DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, pdev); -+ -+ /* -+ * Free the IRQ -+ */ -+ free_irq(otg_dev->irq, pcd); -+ -+ /* start with the driver above us */ -+ if (pcd->driver) { -+ /* should have been done already by driver model core */ -+ DWC_WARN("driver '%s' is still registered\n", -+ pcd->driver->driver.name); -+ usb_gadget_unregister_driver(pcd->driver); -+ } -+ device_unregister(&pcd->gadget.dev); -+ -+ if (GET_CORE_IF(pcd)->dma_enable) { -+ dma_free_coherent (NULL, sizeof (*pcd->setup_pkt) * 5, pcd->setup_pkt, pcd->setup_pkt_dma_handle); -+ dma_free_coherent (NULL, sizeof (uint16_t), pcd->status_buf, pcd->status_buf_dma_handle); -+ if (GET_CORE_IF(pcd)->dma_desc_enable) { -+ dwc_otg_ep_free_desc_chain(dev_if->setup_desc_addr[0], dev_if->dma_setup_desc_addr[0], 1); -+ dwc_otg_ep_free_desc_chain(dev_if->setup_desc_addr[1], dev_if->dma_setup_desc_addr[1], 1); -+ dwc_otg_ep_free_desc_chain(dev_if->in_desc_addr, dev_if->dma_in_desc_addr, 1); -+ dwc_otg_ep_free_desc_chain(dev_if->out_desc_addr, dev_if->dma_out_desc_addr, 1); -+ } -+ } -+ else { -+ kfree (pcd->setup_pkt); -+ kfree (pcd->status_buf); -+ } -+ -+ kfree(pcd); -+ otg_dev->pcd = 0; -+} -+ -+/** -+ * This function registers a gadget driver with the PCD. -+ * -+ * When a driver is successfully registered, it will receive control -+ * requests including set_configuration(), which enables non-control -+ * requests. then usb traffic follows until a disconnect is reported. -+ * then a host may connect again, or the driver might get unbound. -+ * -+ * @param driver The driver being registered -+ */ -+int usb_gadget_probe_driver(struct usb_gadget_driver *driver, -+ int (*bind)(struct usb_gadget *)) -+{ -+ int retval; -+ -+ DWC_DEBUGPL(DBG_PCD, "registering gadget driver '%s'\n", driver->driver.name); -+ -+ if (!driver || driver->max_speed == USB_SPEED_UNKNOWN || -+ !bind || -+ !driver->unbind || -+ !driver->disconnect || -+ !driver->setup) { -+ DWC_DEBUGPL(DBG_PCDV,"EINVAL\n"); -+ return -EINVAL; -+ } -+ if (s_pcd == 0) { -+ DWC_DEBUGPL(DBG_PCDV,"ENODEV\n"); -+ return -ENODEV; -+ } -+ if (s_pcd->driver != 0) { -+ DWC_DEBUGPL(DBG_PCDV,"EBUSY (%p)\n", s_pcd->driver); -+ return -EBUSY; -+ } -+ -+ /* hook up the driver */ -+ s_pcd->driver = driver; -+ s_pcd->gadget.dev.driver = &driver->driver; -+ -+ DWC_DEBUGPL(DBG_PCD, "bind to driver %s\n", driver->driver.name); -+ retval = bind(&s_pcd->gadget); -+ if (retval) { -+ DWC_ERROR("bind to driver %s --> error %d\n", -+ driver->driver.name, retval); -+ s_pcd->driver = 0; -+ s_pcd->gadget.dev.driver = 0; -+ return retval; -+ } -+ DWC_DEBUGPL(DBG_ANY, "registered gadget driver '%s'\n", -+ driver->driver.name); -+ return 0; -+} -+ -+EXPORT_SYMBOL(usb_gadget_probe_driver); -+ -+/** -+ * This function unregisters a gadget driver -+ * -+ * @param driver The driver being unregistered -+ */ -+int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) -+{ -+ //DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, _driver); -+ -+ if (s_pcd == 0) { -+ DWC_DEBUGPL(DBG_ANY, "%s Return(%d): s_pcd==0\n", __func__, -+ -ENODEV); -+ return -ENODEV; -+ } -+ if (driver == 0 || driver != s_pcd->driver) { -+ DWC_DEBUGPL(DBG_ANY, "%s Return(%d): driver?\n", __func__, -+ -EINVAL); -+ return -EINVAL; -+ } -+ -+ driver->unbind(&s_pcd->gadget); -+ s_pcd->driver = 0; -+ -+ DWC_DEBUGPL(DBG_ANY, "unregistered driver '%s'\n", -+ driver->driver.name); -+ return 0; -+} -+EXPORT_SYMBOL(usb_gadget_unregister_driver); -+ -+#endif /* DWC_HOST_ONLY */ ---- /dev/null -+++ b/drivers/usb/dwc/otg_pcd.h -@@ -0,0 +1,292 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd.h $ -+ * $Revision: #36 $ -+ * $Date: 2008/09/26 $ -+ * $Change: 1103515 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+#ifndef DWC_HOST_ONLY -+#if !defined(__DWC_PCD_H__) -+#define __DWC_PCD_H__ -+ -+#include <linux/types.h> -+#include <linux/list.h> -+#include <linux/errno.h> -+#include <linux/device.h> -+#include <linux/platform_device.h> -+ -+#include <linux/usb/ch9.h> -+#include <linux/usb/gadget.h> -+ -+#include <linux/interrupt.h> -+#include <linux/dma-mapping.h> -+ -+struct dwc_otg_device; -+ -+#include "otg_cil.h" -+ -+/** -+ * @file -+ * -+ * This file contains the structures, constants, and interfaces for -+ * the Perpherial Contoller Driver (PCD). -+ * -+ * The Peripheral Controller Driver (PCD) for Linux will implement the -+ * Gadget API, so that the existing Gadget drivers can be used. For -+ * the Mass Storage Function driver the File-backed USB Storage Gadget -+ * (FBS) driver will be used. The FBS driver supports the -+ * Control-Bulk (CB), Control-Bulk-Interrupt (CBI), and Bulk-Only -+ * transports. -+ * -+ */ -+ -+/** Invalid DMA Address */ -+#define DMA_ADDR_INVALID (~(dma_addr_t)0) -+/** Maxpacket size for EP0 */ -+#define MAX_EP0_SIZE 64 -+/** Maxpacket size for any EP */ -+#define MAX_PACKET_SIZE 1024 -+ -+/** Max Transfer size for any EP */ -+#define MAX_TRANSFER_SIZE 65535 -+ -+/** Max DMA Descriptor count for any EP */ -+#define MAX_DMA_DESC_CNT 64 -+ -+/** -+ * Get the pointer to the core_if from the pcd pointer. -+ */ -+#define GET_CORE_IF( _pcd ) (_pcd->otg_dev->core_if) -+ -+/** -+ * States of EP0. -+ */ -+typedef enum ep0_state -+{ -+ EP0_DISCONNECT, /* no host */ -+ EP0_IDLE, -+ EP0_IN_DATA_PHASE, -+ EP0_OUT_DATA_PHASE, -+ EP0_IN_STATUS_PHASE, -+ EP0_OUT_STATUS_PHASE, -+ EP0_STALL, -+} ep0state_e; -+ -+/** Fordward declaration.*/ -+struct dwc_otg_pcd; -+ -+/** DWC_otg iso request structure. -+ * -+ */ -+typedef struct usb_iso_request dwc_otg_pcd_iso_request_t; -+ -+/** PCD EP structure. -+ * This structure describes an EP, there is an array of EPs in the PCD -+ * structure. -+ */ -+typedef struct dwc_otg_pcd_ep -+{ -+ /** USB EP data */ -+ struct usb_ep ep; -+ /** USB EP Descriptor */ -+ const struct usb_endpoint_descriptor *desc; -+ -+ /** queue of dwc_otg_pcd_requests. */ -+ struct list_head queue; -+ unsigned stopped : 1; -+ unsigned disabling : 1; -+ unsigned dma : 1; -+ unsigned queue_sof : 1; -+ -+#ifdef DWC_EN_ISOC -+ /** DWC_otg Isochronous Transfer */ -+ struct usb_iso_request* iso_req; -+#endif //DWC_EN_ISOC -+ -+ /** DWC_otg ep data. */ -+ dwc_ep_t dwc_ep; -+ -+ /** Pointer to PCD */ -+ struct dwc_otg_pcd *pcd; -+}dwc_otg_pcd_ep_t; -+ -+ -+ -+/** DWC_otg PCD Structure. -+ * This structure encapsulates the data for the dwc_otg PCD. -+ */ -+typedef struct dwc_otg_pcd -+{ -+ /** USB gadget */ -+ struct usb_gadget gadget; -+ /** USB gadget driver pointer*/ -+ struct usb_gadget_driver *driver; -+ /** The DWC otg device pointer. */ -+ struct dwc_otg_device *otg_dev; -+ -+ /** State of EP0 */ -+ ep0state_e ep0state; -+ /** EP0 Request is pending */ -+ unsigned ep0_pending : 1; -+ /** Indicates when SET CONFIGURATION Request is in process */ -+ unsigned request_config : 1; -+ /** The state of the Remote Wakeup Enable. */ -+ unsigned remote_wakeup_enable : 1; -+ /** The state of the B-Device HNP Enable. */ -+ unsigned b_hnp_enable : 1; -+ /** The state of A-Device HNP Support. */ -+ unsigned a_hnp_support : 1; -+ /** The state of the A-Device Alt HNP support. */ -+ unsigned a_alt_hnp_support : 1; -+ /** Count of pending Requests */ -+ unsigned request_pending; -+ -+ /** SETUP packet for EP0 -+ * This structure is allocated as a DMA buffer on PCD initialization -+ * with enough space for up to 3 setup packets. -+ */ -+ union -+ { -+ struct usb_ctrlrequest req; -+ uint32_t d32[2]; -+ } *setup_pkt; -+ -+ dma_addr_t setup_pkt_dma_handle; -+ -+ /** 2-byte dma buffer used to return status from GET_STATUS */ -+ uint16_t *status_buf; -+ dma_addr_t status_buf_dma_handle; -+ -+ /** EP0 */ -+ dwc_otg_pcd_ep_t ep0; -+ -+ /** Array of IN EPs. */ -+ dwc_otg_pcd_ep_t in_ep[ MAX_EPS_CHANNELS - 1]; -+ /** Array of OUT EPs. */ -+ dwc_otg_pcd_ep_t out_ep[ MAX_EPS_CHANNELS - 1]; -+ /** number of valid EPs in the above array. */ -+// unsigned num_eps : 4; -+ spinlock_t lock; -+ /** Timer for SRP. If it expires before SRP is successful -+ * clear the SRP. */ -+ struct timer_list srp_timer; -+ -+ /** Tasklet to defer starting of TEST mode transmissions until -+ * Status Phase has been completed. -+ */ -+ struct tasklet_struct test_mode_tasklet; -+ -+ /** Tasklet to delay starting of xfer in DMA mode */ -+ struct tasklet_struct *start_xfer_tasklet; -+ -+ /** The test mode to enter when the tasklet is executed. */ -+ unsigned test_mode; -+ -+} dwc_otg_pcd_t; -+ -+ -+/** DWC_otg request structure. -+ * This structure is a list of requests. -+ */ -+typedef struct -+{ -+ struct usb_request req; /**< USB Request. */ -+ struct list_head queue; /**< queue of these requests. */ -+} dwc_otg_pcd_request_t; -+ -+ -+extern int dwc_otg_pcd_init(struct platform_device *pdev); -+ -+//extern void dwc_otg_pcd_remove( struct dwc_otg_device *_otg_dev ); -+extern void dwc_otg_pcd_remove( struct platform_device *pdev ); -+extern int32_t dwc_otg_pcd_handle_intr( dwc_otg_pcd_t *pcd ); -+extern void dwc_otg_pcd_start_srp_timer(dwc_otg_pcd_t *pcd ); -+ -+extern void dwc_otg_pcd_initiate_srp(dwc_otg_pcd_t *pcd); -+extern void dwc_otg_pcd_remote_wakeup(dwc_otg_pcd_t *pcd, int set); -+ -+extern void dwc_otg_iso_buffer_done(dwc_otg_pcd_ep_t *ep, dwc_otg_pcd_iso_request_t *req); -+extern void dwc_otg_request_done(dwc_otg_pcd_ep_t *_ep, dwc_otg_pcd_request_t *req, -+ int status); -+extern void dwc_otg_request_nuke(dwc_otg_pcd_ep_t *_ep); -+extern void dwc_otg_pcd_update_otg(dwc_otg_pcd_t *_pcd, -+ const unsigned reset); -+#ifndef VERBOSE -+#define VERIFY_PCD_DMA_ADDR(_addr_) BUG_ON(((_addr_)==DMA_ADDR_INVALID)||\ -+ ((_addr_)==0)||\ -+ ((_addr_)&0x3)) -+#else -+#define VERIFY_PCD_DMA_ADDR(_addr_) {\ -+ if(((_addr_)==DMA_ADDR_INVALID)||\ -+ ((_addr_)==0)||\ -+ ((_addr_)&0x3)) {\ -+ printk("%s: Invalid DMA address "#_addr_"(%.8x)\n",__func__,_addr_);\ -+ BUG();\ -+ }\ -+ } -+#endif -+ -+ -+static inline void ep_check_and_patch_dma_addr(dwc_otg_pcd_ep_t *ep){ -+//void ep_check_and_patch_dma_addr(dwc_otg_pcd_ep_t *ep){ -+ dwc_ep_t *dwc_ep=&ep->dwc_ep; -+ -+DWC_DEBUGPL(DBG_PCDV,"%s: dwc_ep xfer_buf=%.8x, total_len=%d, dma_addr=%.8x\n",__func__,(u32)dwc_ep->xfer_buff,(dwc_ep->total_len),dwc_ep->dma_addr); -+ if (/*(core_if->dma_enable)&&*/(dwc_ep->dma_addr==DMA_ADDR_INVALID)) { -+ if((((u32)dwc_ep->xfer_buff)&0x3)==0){ -+ dwc_ep->dma_addr=dma_map_single(NULL,(void *)(dwc_ep->start_xfer_buff),(dwc_ep->total_len), DMA_TO_DEVICE); -+DWC_DEBUGPL(DBG_PCDV," got dma_addr=%.8x\n",dwc_ep->dma_addr); -+ }else{ -+DWC_DEBUGPL(DBG_PCDV," buf not aligned, use aligned_buf instead. xfer_buf=%.8x, total_len=%d, aligned_buf_size=%d\n",(u32)dwc_ep->xfer_buff,(dwc_ep->total_len),dwc_ep->aligned_buf_size); -+ if(dwc_ep->aligned_buf_size<dwc_ep->total_len){ -+ if(dwc_ep->aligned_buf){ -+//printk(" free buff dwc_ep aligned_buf_size=%d, aligned_buf(%.8x), aligned_dma_addr(%.8x));\n",dwc_ep->aligned_buf_size,dwc_ep->aligned_buf,dwc_ep->aligned_dma_addr); -+ //dma_free_coherent(NULL,dwc_ep->aligned_buf_size,dwc_ep->aligned_buf,dwc_ep->aligned_dma_addr); -+ kfree(dwc_ep->aligned_buf); -+ } -+ dwc_ep->aligned_buf_size=((1<<20)>(dwc_ep->total_len<<1))?(dwc_ep->total_len<<1):(1<<20); -+ //dwc_ep->aligned_buf = dma_alloc_coherent (NULL, dwc_ep->aligned_buf_size, &dwc_ep->aligned_dma_addr, GFP_KERNEL|GFP_DMA); -+ dwc_ep->aligned_buf=kmalloc(dwc_ep->aligned_buf_size,GFP_KERNEL|GFP_DMA|GFP_ATOMIC); -+ dwc_ep->aligned_dma_addr=dma_map_single(NULL,(void *)(dwc_ep->aligned_buf),(dwc_ep->aligned_buf_size),DMA_FROM_DEVICE); -+ if(!dwc_ep->aligned_buf){ -+ DWC_ERROR("Cannot alloc required buffer!!\n"); -+ BUG(); -+ } -+DWC_DEBUGPL(DBG_PCDV," dwc_ep allocated aligned buf=%.8x, dma_addr=%.8x, size=%d(0x%x)\n", (u32)dwc_ep->aligned_buf, dwc_ep->aligned_dma_addr, dwc_ep->aligned_buf_size, dwc_ep->aligned_buf_size); -+ } -+ dwc_ep->dma_addr=dwc_ep->aligned_dma_addr; -+ if(dwc_ep->is_in) { -+ memcpy(dwc_ep->aligned_buf,dwc_ep->xfer_buff,dwc_ep->total_len); -+ dma_sync_single_for_device(NULL,dwc_ep->dma_addr,dwc_ep->total_len,DMA_TO_DEVICE); -+ } -+ } -+ } -+} -+ -+#endif -+#endif /* DWC_HOST_ONLY */ ---- /dev/null -+++ b/drivers/usb/dwc/otg_pcd_intr.c -@@ -0,0 +1,3682 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd_intr.c $ -+ * $Revision: #83 $ -+ * $Date: 2008/10/14 $ -+ * $Change: 1115682 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+#ifndef DWC_HOST_ONLY -+#include <linux/interrupt.h> -+#include <linux/dma-mapping.h> -+#include <linux/version.h> -+#include <linux/pci.h> -+ -+#include "otg_driver.h" -+#include "otg_pcd.h" -+ -+ -+#define DEBUG_EP0 -+ -+ -+/* request functions defined in "dwc_otg_pcd.c" */ -+ -+/** @file -+ * This file contains the implementation of the PCD Interrupt handlers. -+ * -+ * The PCD handles the device interrupts. Many conditions can cause a -+ * device interrupt. When an interrupt occurs, the device interrupt -+ * service routine determines the cause of the interrupt and -+ * dispatches handling to the appropriate function. These interrupt -+ * handling functions are described below. -+ * All interrupt registers are processed from LSB to MSB. -+ */ -+ -+ -+/** -+ * This function prints the ep0 state for debug purposes. -+ */ -+static inline void print_ep0_state(dwc_otg_pcd_t *pcd) -+{ -+#ifdef DEBUG -+ char str[40]; -+ -+ switch (pcd->ep0state) { -+ case EP0_DISCONNECT: -+ strcpy(str, "EP0_DISCONNECT"); -+ break; -+ case EP0_IDLE: -+ strcpy(str, "EP0_IDLE"); -+ break; -+ case EP0_IN_DATA_PHASE: -+ strcpy(str, "EP0_IN_DATA_PHASE"); -+ break; -+ case EP0_OUT_DATA_PHASE: -+ strcpy(str, "EP0_OUT_DATA_PHASE"); -+ break; -+ case EP0_IN_STATUS_PHASE: -+ strcpy(str,"EP0_IN_STATUS_PHASE"); -+ break; -+ case EP0_OUT_STATUS_PHASE: -+ strcpy(str,"EP0_OUT_STATUS_PHASE"); -+ break; -+ case EP0_STALL: -+ strcpy(str,"EP0_STALL"); -+ break; -+ default: -+ strcpy(str,"EP0_INVALID"); -+ } -+ -+ DWC_DEBUGPL(DBG_ANY, "%s(%d)\n", str, pcd->ep0state); -+#endif -+} -+ -+/** -+ * This function returns pointer to in ep struct with number ep_num -+ */ -+static inline dwc_otg_pcd_ep_t* get_in_ep(dwc_otg_pcd_t *pcd, uint32_t ep_num) -+{ -+ int i; -+ int num_in_eps = GET_CORE_IF(pcd)->dev_if->num_in_eps; -+ if(ep_num == 0) { -+ return &pcd->ep0; -+ } -+ else { -+ for(i = 0; i < num_in_eps; ++i) -+ { -+ if(pcd->in_ep[i].dwc_ep.num == ep_num) -+ return &pcd->in_ep[i]; -+ } -+ return 0; -+ } -+} -+/** -+ * This function returns pointer to out ep struct with number ep_num -+ */ -+static inline dwc_otg_pcd_ep_t* get_out_ep(dwc_otg_pcd_t *pcd, uint32_t ep_num) -+{ -+ int i; -+ int num_out_eps = GET_CORE_IF(pcd)->dev_if->num_out_eps; -+ if(ep_num == 0) { -+ return &pcd->ep0; -+ } -+ else { -+ for(i = 0; i < num_out_eps; ++i) -+ { -+ if(pcd->out_ep[i].dwc_ep.num == ep_num) -+ return &pcd->out_ep[i]; -+ } -+ return 0; -+ } -+} -+/** -+ * This functions gets a pointer to an EP from the wIndex address -+ * value of the control request. -+ */ -+static dwc_otg_pcd_ep_t *get_ep_by_addr (dwc_otg_pcd_t *pcd, u16 wIndex) -+{ -+ dwc_otg_pcd_ep_t *ep; -+ -+ if ((wIndex & USB_ENDPOINT_NUMBER_MASK) == 0) -+ return &pcd->ep0; -+ list_for_each_entry(ep, &pcd->gadget.ep_list, ep.ep_list) -+ { -+ u8 bEndpointAddress; -+ -+ if (!ep->desc) -+ continue; -+ -+ bEndpointAddress = ep->desc->bEndpointAddress; -+ if((wIndex & (USB_DIR_IN | USB_ENDPOINT_NUMBER_MASK)) -+ == (bEndpointAddress & (USB_DIR_IN | USB_ENDPOINT_NUMBER_MASK))) -+ return ep; -+ } -+ return NULL; -+} -+ -+/** -+ * This function checks the EP request queue, if the queue is not -+ * empty the next request is started. -+ */ -+void start_next_request(dwc_otg_pcd_ep_t *ep) -+{ -+ dwc_otg_pcd_request_t *req = 0; -+ uint32_t max_transfer = GET_CORE_IF(ep->pcd)->core_params->max_transfer_size; -+ if (!list_empty(&ep->queue)) { -+ req = list_entry(ep->queue.next, -+ dwc_otg_pcd_request_t, queue); -+ -+ /* Setup and start the Transfer */ -+ ep->dwc_ep.dma_addr = req->req.dma; -+ ep->dwc_ep.start_xfer_buff = req->req.buf; -+ ep->dwc_ep.xfer_buff = req->req.buf; -+ ep->dwc_ep.sent_zlp = 0; -+ ep->dwc_ep.total_len = req->req.length; -+ ep->dwc_ep.xfer_len = 0; -+ ep->dwc_ep.xfer_count = 0; -+ -+ if(max_transfer > MAX_TRANSFER_SIZE) { -+ ep->dwc_ep.maxxfer = max_transfer - (max_transfer % ep->dwc_ep.maxpacket); -+ } else { -+ ep->dwc_ep.maxxfer = max_transfer; -+ } -+ -+ if(req->req.zero) { -+ if((ep->dwc_ep.total_len % ep->dwc_ep.maxpacket == 0) -+ && (ep->dwc_ep.total_len != 0)) { -+ ep->dwc_ep.sent_zlp = 1; -+ } -+ -+ } -+ ep_check_and_patch_dma_addr(ep); -+ dwc_otg_ep_start_transfer(GET_CORE_IF(ep->pcd), &ep->dwc_ep); -+ } -+} -+ -+/** -+ * This function handles the SOF Interrupts. At this time the SOF -+ * Interrupt is disabled. -+ */ -+int32_t dwc_otg_pcd_handle_sof_intr(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ -+ gintsts_data_t gintsts; -+ -+ DWC_DEBUGPL(DBG_PCD, "SOF\n"); -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.sofintr = 1; -+ dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); -+ -+ return 1; -+} -+ -+ -+/** -+ * This function handles the Rx Status Queue Level Interrupt, which -+ * indicates that there is a least one packet in the Rx FIFO. The -+ * packets are moved from the FIFO to memory, where they will be -+ * processed when the Endpoint Interrupt Register indicates Transfer -+ * Complete or SETUP Phase Done. -+ * -+ * Repeat the following until the Rx Status Queue is empty: -+ * -# Read the Receive Status Pop Register (GRXSTSP) to get Packet -+ * info -+ * -# If Receive FIFO is empty then skip to step Clear the interrupt -+ * and exit -+ * -# If SETUP Packet call dwc_otg_read_setup_packet to copy the -+ * SETUP data to the buffer -+ * -# If OUT Data Packet call dwc_otg_read_packet to copy the data -+ * to the destination buffer -+ */ -+int32_t dwc_otg_pcd_handle_rx_status_q_level_intr(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; -+ gintmsk_data_t gintmask = {.d32=0}; -+ device_grxsts_data_t status; -+ dwc_otg_pcd_ep_t *ep; -+ gintsts_data_t gintsts; -+#ifdef DEBUG -+ static char *dpid_str[] ={ "D0", "D2", "D1", "MDATA" }; -+#endif -+ -+ //DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, _pcd); -+ /* Disable the Rx Status Queue Level interrupt */ -+ gintmask.b.rxstsqlvl= 1; -+ dwc_modify_reg32(&global_regs->gintmsk, gintmask.d32, 0); -+ -+ /* Get the Status from the top of the FIFO */ -+ status.d32 = dwc_read_reg32(&global_regs->grxstsp); -+ -+ DWC_DEBUGPL(DBG_PCD, "EP:%d BCnt:%d DPID:%s " -+ "pktsts:%x Frame:%d(0x%0x)\n", -+ status.b.epnum, status.b.bcnt, -+ dpid_str[status.b.dpid], -+ status.b.pktsts, status.b.fn, status.b.fn); -+ /* Get pointer to EP structure */ -+ ep = get_out_ep(pcd, status.b.epnum); -+ -+ switch (status.b.pktsts) { -+ case DWC_DSTS_GOUT_NAK: -+ DWC_DEBUGPL(DBG_PCDV, "Global OUT NAK\n"); -+ break; -+ case DWC_STS_DATA_UPDT: -+ DWC_DEBUGPL(DBG_PCDV, "OUT Data Packet\n"); -+ if (status.b.bcnt && ep->dwc_ep.xfer_buff) { -+ /** @todo NGS Check for buffer overflow? */ -+ dwc_otg_read_packet(core_if, -+ ep->dwc_ep.xfer_buff, -+ status.b.bcnt); -+ ep->dwc_ep.xfer_count += status.b.bcnt; -+ ep->dwc_ep.xfer_buff += status.b.bcnt; -+ } -+ break; -+ case DWC_STS_XFER_COMP: -+ DWC_DEBUGPL(DBG_PCDV, "OUT Complete\n"); -+ break; -+ case DWC_DSTS_SETUP_COMP: -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCDV, "Setup Complete\n"); -+#endif -+ break; -+case DWC_DSTS_SETUP_UPDT: -+ dwc_otg_read_setup_packet(core_if, pcd->setup_pkt->d32); -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCD, -+ "SETUP PKT: %02x.%02x v%04x i%04x l%04x\n", -+ pcd->setup_pkt->req.bRequestType, -+ pcd->setup_pkt->req.bRequest, -+ pcd->setup_pkt->req.wValue, -+ pcd->setup_pkt->req.wIndex, -+ pcd->setup_pkt->req.wLength); -+#endif -+ ep->dwc_ep.xfer_count += status.b.bcnt; -+ break; -+ default: -+ DWC_DEBUGPL(DBG_PCDV, "Invalid Packet Status (0x%0x)\n", -+ status.b.pktsts); -+ break; -+ } -+ -+ /* Enable the Rx Status Queue Level interrupt */ -+ dwc_modify_reg32(&global_regs->gintmsk, 0, gintmask.d32); -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.rxstsqlvl = 1; -+ dwc_write_reg32 (&global_regs->gintsts, gintsts.d32); -+ -+ //DWC_DEBUGPL(DBG_PCDV, "EXIT: %s\n", __func__); -+ return 1; -+} -+/** -+ * This function examines the Device IN Token Learning Queue to -+ * determine the EP number of the last IN token received. This -+ * implementation is for the Mass Storage device where there are only -+ * 2 IN EPs (Control-IN and BULK-IN). -+ * -+ * The EP numbers for the first six IN Tokens are in DTKNQR1 and there -+ * are 8 EP Numbers in each of the other possible DTKNQ Registers. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * -+ */ -+static inline int get_ep_of_last_in_token(dwc_otg_core_if_t *core_if) -+{ -+ dwc_otg_device_global_regs_t *dev_global_regs = -+ core_if->dev_if->dev_global_regs; -+ const uint32_t TOKEN_Q_DEPTH = core_if->hwcfg2.b.dev_token_q_depth; -+ /* Number of Token Queue Registers */ -+ const int DTKNQ_REG_CNT = (TOKEN_Q_DEPTH + 7) / 8; -+ dtknq1_data_t dtknqr1; -+ uint32_t in_tkn_epnums[4]; -+ int ndx = 0; -+ int i = 0; -+ volatile uint32_t *addr = &dev_global_regs->dtknqr1; -+ int epnum = 0; -+ -+ //DWC_DEBUGPL(DBG_PCD,"dev_token_q_depth=%d\n",TOKEN_Q_DEPTH); -+ -+ /* Read the DTKNQ Registers */ -+ for (i = 0; i < DTKNQ_REG_CNT; i++) -+ { -+ in_tkn_epnums[ i ] = dwc_read_reg32(addr); -+ DWC_DEBUGPL(DBG_PCDV, "DTKNQR%d=0x%08x\n", i+1, -+ in_tkn_epnums[i]); -+ if (addr == &dev_global_regs->dvbusdis) { -+ addr = &dev_global_regs->dtknqr3_dthrctl; -+ } -+ else { -+ ++addr; -+ } -+ } -+ -+ /* Copy the DTKNQR1 data to the bit field. */ -+ dtknqr1.d32 = in_tkn_epnums[0]; -+ /* Get the EP numbers */ -+ in_tkn_epnums[0] = dtknqr1.b.epnums0_5; -+ ndx = dtknqr1.b.intknwptr - 1; -+ -+ //DWC_DEBUGPL(DBG_PCDV,"ndx=%d\n",ndx); -+ if (ndx == -1) { -+ /** @todo Find a simpler way to calculate the max -+ * queue position.*/ -+ int cnt = TOKEN_Q_DEPTH; -+ if (TOKEN_Q_DEPTH <= 6) { -+ cnt = TOKEN_Q_DEPTH - 1; -+ } -+ else if (TOKEN_Q_DEPTH <= 14) { -+ cnt = TOKEN_Q_DEPTH - 7; -+ } -+ else if (TOKEN_Q_DEPTH <= 22) { -+ cnt = TOKEN_Q_DEPTH - 15; -+ } -+ else { -+ cnt = TOKEN_Q_DEPTH - 23; -+ } -+ epnum = (in_tkn_epnums[ DTKNQ_REG_CNT - 1 ] >> (cnt * 4)) & 0xF; -+ } -+ else { -+ if (ndx <= 5) { -+ epnum = (in_tkn_epnums[0] >> (ndx * 4)) & 0xF; -+ } -+ else if (ndx <= 13) { -+ ndx -= 6; -+ epnum = (in_tkn_epnums[1] >> (ndx * 4)) & 0xF; -+ } -+ else if (ndx <= 21) { -+ ndx -= 14; -+ epnum = (in_tkn_epnums[2] >> (ndx * 4)) & 0xF; -+ } -+ else if (ndx <= 29) { -+ ndx -= 22; -+ epnum = (in_tkn_epnums[3] >> (ndx * 4)) & 0xF; -+ } -+ } -+ //DWC_DEBUGPL(DBG_PCD,"epnum=%d\n",epnum); -+ return epnum; -+} -+ -+/** -+ * This interrupt occurs when the non-periodic Tx FIFO is half-empty. -+ * The active request is checked for the next packet to be loaded into -+ * the non-periodic Tx FIFO. -+ */ -+int32_t dwc_otg_pcd_handle_np_tx_fifo_empty_intr(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_core_global_regs_t *global_regs = -+ core_if->core_global_regs; -+ dwc_otg_dev_in_ep_regs_t *ep_regs; -+ gnptxsts_data_t txstatus = {.d32 = 0}; -+ gintsts_data_t gintsts; -+ -+ int epnum = 0; -+ dwc_otg_pcd_ep_t *ep = 0; -+ uint32_t len = 0; -+ int dwords; -+ -+ /* Get the epnum from the IN Token Learning Queue. */ -+ epnum = get_ep_of_last_in_token(core_if); -+ ep = get_in_ep(pcd, epnum); -+ -+ DWC_DEBUGPL(DBG_PCD, "NP TxFifo Empty: %s(%d) \n", ep->ep.name, epnum); -+ ep_regs = core_if->dev_if->in_ep_regs[epnum]; -+ -+ len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; -+ if (len > ep->dwc_ep.maxpacket) { -+ len = ep->dwc_ep.maxpacket; -+ } -+ dwords = (len + 3)/4; -+ -+ /* While there is space in the queue and space in the FIFO and -+ * More data to tranfer, Write packets to the Tx FIFO */ -+ txstatus.d32 = dwc_read_reg32(&global_regs->gnptxsts); -+ DWC_DEBUGPL(DBG_PCDV, "b4 GNPTXSTS=0x%08x\n",txstatus.d32); -+ -+ while (txstatus.b.nptxqspcavail > 0 && -+ txstatus.b.nptxfspcavail > dwords && -+ ep->dwc_ep.xfer_count < ep->dwc_ep.xfer_len) { -+ /* Write the FIFO */ -+ dwc_otg_ep_write_packet(core_if, &ep->dwc_ep, 0); -+ len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; -+ -+ if (len > ep->dwc_ep.maxpacket) { -+ len = ep->dwc_ep.maxpacket; -+ } -+ -+ dwords = (len + 3)/4; -+ txstatus.d32 = dwc_read_reg32(&global_regs->gnptxsts); -+ DWC_DEBUGPL(DBG_PCDV,"GNPTXSTS=0x%08x\n",txstatus.d32); -+ } -+ -+ DWC_DEBUGPL(DBG_PCDV, "GNPTXSTS=0x%08x\n", -+ dwc_read_reg32(&global_regs->gnptxsts)); -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.nptxfempty = 1; -+ dwc_write_reg32 (&global_regs->gintsts, gintsts.d32); -+ -+ return 1; -+} -+ -+/** -+ * This function is called when dedicated Tx FIFO Empty interrupt occurs. -+ * The active request is checked for the next packet to be loaded into -+ * apropriate Tx FIFO. -+ */ -+static int32_t write_empty_tx_fifo(dwc_otg_pcd_t *pcd, uint32_t epnum) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_dev_if_t* dev_if = core_if->dev_if; -+ dwc_otg_dev_in_ep_regs_t *ep_regs; -+ dtxfsts_data_t txstatus = {.d32 = 0}; -+ dwc_otg_pcd_ep_t *ep = 0; -+ uint32_t len = 0; -+ int dwords; -+ -+ ep = get_in_ep(pcd, epnum); -+ -+ DWC_DEBUGPL(DBG_PCD, "Dedicated TxFifo Empty: %s(%d) \n", ep->ep.name, epnum); -+ -+ ep_regs = core_if->dev_if->in_ep_regs[epnum]; -+ -+ len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; -+ -+ if (len > ep->dwc_ep.maxpacket) { -+ len = ep->dwc_ep.maxpacket; -+ } -+ -+ dwords = (len + 3)/4; -+ -+ /* While there is space in the queue and space in the FIFO and -+ * More data to tranfer, Write packets to the Tx FIFO */ -+ txstatus.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->dtxfsts); -+ DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n",epnum,txstatus.d32); -+ -+ while (txstatus.b.txfspcavail > dwords && -+ ep->dwc_ep.xfer_count < ep->dwc_ep.xfer_len && -+ ep->dwc_ep.xfer_len != 0) { -+ /* Write the FIFO */ -+ dwc_otg_ep_write_packet(core_if, &ep->dwc_ep, 0); -+ -+ len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; -+ if (len > ep->dwc_ep.maxpacket) { -+ len = ep->dwc_ep.maxpacket; -+ } -+ -+ dwords = (len + 3)/4; -+ txstatus.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->dtxfsts); -+ DWC_DEBUGPL(DBG_PCDV,"dtxfsts[%d]=0x%08x\n", epnum, txstatus.d32); -+ } -+ -+ DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n",epnum,dwc_read_reg32(&dev_if->in_ep_regs[epnum]->dtxfsts)); -+ -+ return 1; -+} -+ -+/** -+ * This function is called when the Device is disconnected. It stops -+ * any active requests and informs the Gadget driver of the -+ * disconnect. -+ */ -+void dwc_otg_pcd_stop(dwc_otg_pcd_t *pcd) -+{ -+ int i, num_in_eps, num_out_eps; -+ dwc_otg_pcd_ep_t *ep; -+ -+ gintmsk_data_t intr_mask = {.d32 = 0}; -+ -+ num_in_eps = GET_CORE_IF(pcd)->dev_if->num_in_eps; -+ num_out_eps = GET_CORE_IF(pcd)->dev_if->num_out_eps; -+ -+ DWC_DEBUGPL(DBG_PCDV, "%s() \n", __func__); -+ /* don't disconnect drivers more than once */ -+ if (pcd->ep0state == EP0_DISCONNECT) { -+ DWC_DEBUGPL(DBG_ANY, "%s() Already Disconnected\n", __func__); -+ return; -+ } -+ pcd->ep0state = EP0_DISCONNECT; -+ -+ /* Reset the OTG state. */ -+ dwc_otg_pcd_update_otg(pcd, 1); -+ -+ /* Disable the NP Tx Fifo Empty Interrupt. */ -+ intr_mask.b.nptxfempty = 1; -+ dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, -+ intr_mask.d32, 0); -+ -+ /* Flush the FIFOs */ -+ /**@todo NGS Flush Periodic FIFOs */ -+ dwc_otg_flush_tx_fifo(GET_CORE_IF(pcd), 0x10); -+ dwc_otg_flush_rx_fifo(GET_CORE_IF(pcd)); -+ -+ /* prevent new request submissions, kill any outstanding requests */ -+ ep = &pcd->ep0; -+ dwc_otg_request_nuke(ep); -+ /* prevent new request submissions, kill any outstanding requests */ -+ for (i = 0; i < num_in_eps; i++) -+ { -+ dwc_otg_pcd_ep_t *ep = &pcd->in_ep[i]; -+ dwc_otg_request_nuke(ep); -+ } -+ /* prevent new request submissions, kill any outstanding requests */ -+ for (i = 0; i < num_out_eps; i++) -+ { -+ dwc_otg_pcd_ep_t *ep = &pcd->out_ep[i]; -+ dwc_otg_request_nuke(ep); -+ } -+ -+ /* report disconnect; the driver is already quiesced */ -+ if (pcd->driver && pcd->driver->disconnect) { -+ SPIN_UNLOCK(&pcd->lock); -+ pcd->driver->disconnect(&pcd->gadget); -+ SPIN_LOCK(&pcd->lock); -+ } -+} -+ -+/** -+ * This interrupt indicates that ... -+ */ -+int32_t dwc_otg_pcd_handle_i2c_intr(dwc_otg_pcd_t *pcd) -+{ -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ gintsts_data_t gintsts; -+ -+ DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "i2cintr"); -+ intr_mask.b.i2cintr = 1; -+ dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, -+ intr_mask.d32, 0); -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.i2cintr = 1; -+ dwc_write_reg32 (&GET_CORE_IF(pcd)->core_global_regs->gintsts, -+ gintsts.d32); -+ return 1; -+} -+ -+ -+/** -+ * This interrupt indicates that ... -+ */ -+int32_t dwc_otg_pcd_handle_early_suspend_intr(dwc_otg_pcd_t *pcd) -+{ -+ gintsts_data_t gintsts; -+#if defined(VERBOSE) -+ DWC_PRINT("Early Suspend Detected\n"); -+#endif -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.erlysuspend = 1; -+ dwc_write_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, -+ gintsts.d32); -+ return 1; -+} -+ -+/** -+ * This function configures EPO to receive SETUP packets. -+ * -+ * @todo NGS: Update the comments from the HW FS. -+ * -+ * -# Program the following fields in the endpoint specific registers -+ * for Control OUT EP 0, in order to receive a setup packet -+ * - DOEPTSIZ0.Packet Count = 3 (To receive up to 3 back to back -+ * setup packets) -+ * - DOEPTSIZE0.Transfer Size = 24 Bytes (To receive up to 3 back -+ * to back setup packets) -+ * - In DMA mode, DOEPDMA0 Register with a memory address to -+ * store any setup packets received -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param pcd Programming view of the PCD. -+ */ -+static inline void ep0_out_start(dwc_otg_core_if_t *core_if, dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ deptsiz0_data_t doeptsize0 = { .d32 = 0}; -+ dwc_otg_dma_desc_t* dma_desc; -+ depctl_data_t doepctl = { .d32 = 0 }; -+ -+#ifdef VERBOSE -+ DWC_DEBUGPL(DBG_PCDV,"%s() doepctl0=%0x\n", __func__, -+ dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl)); -+#endif -+ -+ doeptsize0.b.supcnt = 3; -+ doeptsize0.b.pktcnt = 1; -+ doeptsize0.b.xfersize = 8*3; -+ -+ if (core_if->dma_enable) { -+ if (!core_if->dma_desc_enable) { -+ /** put here as for Hermes mode deptisz register should not be written */ -+ dwc_write_reg32(&dev_if->out_ep_regs[0]->doeptsiz, -+ doeptsize0.d32); -+ -+ /** @todo dma needs to handle multiple setup packets (up to 3) */ -+ VERIFY_PCD_DMA_ADDR(pcd->setup_pkt_dma_handle); -+ -+ dwc_write_reg32(&dev_if->out_ep_regs[0]->doepdma, -+ pcd->setup_pkt_dma_handle); -+ } else { -+ dev_if->setup_desc_index = (dev_if->setup_desc_index + 1) & 1; -+ dma_desc = dev_if->setup_desc_addr[dev_if->setup_desc_index]; -+ -+ /** DMA Descriptor Setup */ -+ dma_desc->status.b.bs = BS_HOST_BUSY; -+ dma_desc->status.b.l = 1; -+ dma_desc->status.b.ioc = 1; -+ dma_desc->status.b.bytes = pcd->ep0.dwc_ep.maxpacket; -+ dma_desc->buf = pcd->setup_pkt_dma_handle; -+ dma_desc->status.b.bs = BS_HOST_READY; -+ -+ /** DOEPDMA0 Register write */ -+ VERIFY_PCD_DMA_ADDR(dev_if->dma_setup_desc_addr[dev_if->setup_desc_index]); -+ dwc_write_reg32(&dev_if->out_ep_regs[0]->doepdma, dev_if->dma_setup_desc_addr[dev_if->setup_desc_index]); -+ } -+ -+ } else { -+ /** put here as for Hermes mode deptisz register should not be written */ -+ dwc_write_reg32(&dev_if->out_ep_regs[0]->doeptsiz, -+ doeptsize0.d32); -+ } -+ -+ /** DOEPCTL0 Register write */ -+ doepctl.b.epena = 1; -+ doepctl.b.cnak = 1; -+ dwc_write_reg32(&dev_if->out_ep_regs[0]->doepctl, doepctl.d32); -+ -+#ifdef VERBOSE -+ DWC_DEBUGPL(DBG_PCDV,"doepctl0=%0x\n", -+ dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl)); -+ DWC_DEBUGPL(DBG_PCDV,"diepctl0=%0x\n", -+ dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl)); -+#endif -+} -+ -+/** -+ * This interrupt occurs when a USB Reset is detected. When the USB -+ * Reset Interrupt occurs the device state is set to DEFAULT and the -+ * EP0 state is set to IDLE. -+ * -# Set the NAK bit for all OUT endpoints (DOEPCTLn.SNAK = 1) -+ * -# Unmask the following interrupt bits -+ * - DAINTMSK.INEP0 = 1 (Control 0 IN endpoint) -+ * - DAINTMSK.OUTEP0 = 1 (Control 0 OUT endpoint) -+ * - DOEPMSK.SETUP = 1 -+ * - DOEPMSK.XferCompl = 1 -+ * - DIEPMSK.XferCompl = 1 -+ * - DIEPMSK.TimeOut = 1 -+ * -# Program the following fields in the endpoint specific registers -+ * for Control OUT EP 0, in order to receive a setup packet -+ * - DOEPTSIZ0.Packet Count = 3 (To receive up to 3 back to back -+ * setup packets) -+ * - DOEPTSIZE0.Transfer Size = 24 Bytes (To receive up to 3 back -+ * to back setup packets) -+ * - In DMA mode, DOEPDMA0 Register with a memory address to -+ * store any setup packets received -+ * At this point, all the required initialization, except for enabling -+ * the control 0 OUT endpoint is done, for receiving SETUP packets. -+ */ -+int32_t dwc_otg_pcd_handle_usb_reset_intr(dwc_otg_pcd_t * pcd) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ depctl_data_t doepctl = { .d32 = 0}; -+ -+ daint_data_t daintmsk = { .d32 = 0}; -+ doepmsk_data_t doepmsk = { .d32 = 0}; -+ diepmsk_data_t diepmsk = { .d32 = 0}; -+ -+ dcfg_data_t dcfg = { .d32=0 }; -+ grstctl_t resetctl = { .d32=0 }; -+ dctl_data_t dctl = {.d32=0}; -+ int i = 0; -+ gintsts_data_t gintsts; -+ -+ DWC_PRINT("USB RESET\n"); -+#ifdef DWC_EN_ISOC -+ for(i = 1;i < 16; ++i) -+ { -+ dwc_otg_pcd_ep_t *ep; -+ dwc_ep_t *dwc_ep; -+ ep = get_in_ep(pcd,i); -+ if(ep != 0){ -+ dwc_ep = &ep->dwc_ep; -+ dwc_ep->next_frame = 0xffffffff; -+ } -+ } -+#endif /* DWC_EN_ISOC */ -+ -+ /* reset the HNP settings */ -+ dwc_otg_pcd_update_otg(pcd, 1); -+ -+ /* Clear the Remote Wakeup Signalling */ -+ dctl.b.rmtwkupsig = 1; -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dctl, -+ dctl.d32, 0); -+ -+ /* Set NAK for all OUT EPs */ -+ doepctl.b.snak = 1; -+ for (i=0; i <= dev_if->num_out_eps; i++) -+ { -+ dwc_write_reg32(&dev_if->out_ep_regs[i]->doepctl, -+ doepctl.d32); -+ } -+ -+ /* Flush the NP Tx FIFO */ -+ dwc_otg_flush_tx_fifo(core_if, 0x10); -+ /* Flush the Learning Queue */ -+ resetctl.b.intknqflsh = 1; -+ dwc_write_reg32(&core_if->core_global_regs->grstctl, resetctl.d32); -+ -+ if(core_if->multiproc_int_enable) { -+ daintmsk.b.inep0 = 1; -+ daintmsk.b.outep0 = 1; -+ dwc_write_reg32(&dev_if->dev_global_regs->deachintmsk, daintmsk.d32); -+ -+ doepmsk.b.setup = 1; -+ doepmsk.b.xfercompl = 1; -+ doepmsk.b.ahberr = 1; -+ doepmsk.b.epdisabled = 1; -+ -+ if(core_if->dma_desc_enable) { -+ doepmsk.b.stsphsercvd = 1; -+ doepmsk.b.bna = 1; -+ } -+/* -+ doepmsk.b.babble = 1; -+ doepmsk.b.nyet = 1; -+ -+ if(core_if->dma_enable) { -+ doepmsk.b.nak = 1; -+ } -+*/ -+ dwc_write_reg32(&dev_if->dev_global_regs->doepeachintmsk[0], doepmsk.d32); -+ -+ diepmsk.b.xfercompl = 1; -+ diepmsk.b.timeout = 1; -+ diepmsk.b.epdisabled = 1; -+ diepmsk.b.ahberr = 1; -+ diepmsk.b.intknepmis = 1; -+ -+ if(core_if->dma_desc_enable) { -+ diepmsk.b.bna = 1; -+ } -+/* -+ if(core_if->dma_enable) { -+ diepmsk.b.nak = 1; -+ } -+*/ -+ dwc_write_reg32(&dev_if->dev_global_regs->diepeachintmsk[0], diepmsk.d32); -+ } else{ -+ daintmsk.b.inep0 = 1; -+ daintmsk.b.outep0 = 1; -+ dwc_write_reg32(&dev_if->dev_global_regs->daintmsk, daintmsk.d32); -+ -+ doepmsk.b.setup = 1; -+ doepmsk.b.xfercompl = 1; -+ doepmsk.b.ahberr = 1; -+ doepmsk.b.epdisabled = 1; -+ -+ if(core_if->dma_desc_enable) { -+ doepmsk.b.stsphsercvd = 1; -+ doepmsk.b.bna = 1; -+ } -+/* -+ doepmsk.b.babble = 1; -+ doepmsk.b.nyet = 1; -+ doepmsk.b.nak = 1; -+*/ -+ dwc_write_reg32(&dev_if->dev_global_regs->doepmsk, doepmsk.d32); -+ -+ diepmsk.b.xfercompl = 1; -+ diepmsk.b.timeout = 1; -+ diepmsk.b.epdisabled = 1; -+ diepmsk.b.ahberr = 1; -+ diepmsk.b.intknepmis = 1; -+ -+ if(core_if->dma_desc_enable) { -+ diepmsk.b.bna = 1; -+ } -+ -+// diepmsk.b.nak = 1; -+ -+ dwc_write_reg32(&dev_if->dev_global_regs->diepmsk, diepmsk.d32); -+ } -+ -+ /* Reset Device Address */ -+ dcfg.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dcfg); -+ dcfg.b.devaddr = 0; -+ dwc_write_reg32(&dev_if->dev_global_regs->dcfg, dcfg.d32); -+ -+ /* setup EP0 to receive SETUP packets */ -+ ep0_out_start(core_if, pcd); -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.usbreset = 1; -+ dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); -+ -+ return 1; -+} -+ -+/** -+ * Get the device speed from the device status register and convert it -+ * to USB speed constant. -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ */ -+static int get_device_speed(dwc_otg_core_if_t *core_if) -+{ -+ dsts_data_t dsts; -+ enum usb_device_speed speed = USB_SPEED_UNKNOWN; -+ dsts.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dsts); -+ -+ switch (dsts.b.enumspd) { -+ case DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ: -+ speed = USB_SPEED_HIGH; -+ break; -+ case DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ: -+ case DWC_DSTS_ENUMSPD_FS_PHY_48MHZ: -+ speed = USB_SPEED_FULL; -+ break; -+ -+ case DWC_DSTS_ENUMSPD_LS_PHY_6MHZ: -+ speed = USB_SPEED_LOW; -+ break; -+ } -+ -+ return speed; -+} -+ -+/** -+ * Read the device status register and set the device speed in the -+ * data structure. -+ * Set up EP0 to receive SETUP packets by calling dwc_ep0_activate. -+ */ -+int32_t dwc_otg_pcd_handle_enum_done_intr(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; -+ gintsts_data_t gintsts; -+ gusbcfg_data_t gusbcfg; -+ dwc_otg_core_global_regs_t *global_regs = -+ GET_CORE_IF(pcd)->core_global_regs; -+ uint8_t utmi16b, utmi8b; -+// DWC_DEBUGPL(DBG_PCD, "SPEED ENUM\n"); -+ DWC_PRINT("SPEED ENUM\n"); -+ -+ if (GET_CORE_IF(pcd)->snpsid >= 0x4F54260A) { -+ utmi16b = 6; -+ utmi8b = 9; -+ } else { -+ utmi16b = 4; -+ utmi8b = 8; -+ } -+ dwc_otg_ep0_activate(GET_CORE_IF(pcd), &ep0->dwc_ep); -+ -+#ifdef DEBUG_EP0 -+ print_ep0_state(pcd); -+#endif -+ -+ if (pcd->ep0state == EP0_DISCONNECT) { -+ pcd->ep0state = EP0_IDLE; -+ } -+ else if (pcd->ep0state == EP0_STALL) { -+ pcd->ep0state = EP0_IDLE; -+ } -+ -+ pcd->ep0state = EP0_IDLE; -+ -+ ep0->stopped = 0; -+ -+ pcd->gadget.speed = get_device_speed(GET_CORE_IF(pcd)); -+ -+ /* Set USB turnaround time based on device speed and PHY interface. */ -+ gusbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); -+ if (pcd->gadget.speed == USB_SPEED_HIGH) { -+ if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == DWC_HWCFG2_HS_PHY_TYPE_ULPI) { -+ /* ULPI interface */ -+ gusbcfg.b.usbtrdtim = 9; -+ } -+ if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == DWC_HWCFG2_HS_PHY_TYPE_UTMI) { -+ /* UTMI+ interface */ -+ if (GET_CORE_IF(pcd)->hwcfg4.b.utmi_phy_data_width == 0) { -+ gusbcfg.b.usbtrdtim = utmi8b; -+ } -+ else if (GET_CORE_IF(pcd)->hwcfg4.b.utmi_phy_data_width == 1) { -+ gusbcfg.b.usbtrdtim = utmi16b; -+ } -+ else if (GET_CORE_IF(pcd)->core_params->phy_utmi_width == 8) { -+ gusbcfg.b.usbtrdtim = utmi8b; -+ } -+ else { -+ gusbcfg.b.usbtrdtim = utmi16b; -+ } -+ } -+ if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI) { -+ /* UTMI+ OR ULPI interface */ -+ if (gusbcfg.b.ulpi_utmi_sel == 1) { -+ /* ULPI interface */ -+ gusbcfg.b.usbtrdtim = 9; -+ } -+ else { -+ /* UTMI+ interface */ -+ if (GET_CORE_IF(pcd)->core_params->phy_utmi_width == 16) { -+ gusbcfg.b.usbtrdtim = utmi16b; -+ } -+ else { -+ gusbcfg.b.usbtrdtim = utmi8b; -+ } -+ } -+ } -+ } -+ else { -+ /* Full or low speed */ -+ gusbcfg.b.usbtrdtim = 9; -+ } -+ dwc_write_reg32(&global_regs->gusbcfg, gusbcfg.d32); -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.enumdone = 1; -+ dwc_write_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, -+ gintsts.d32); -+ return 1; -+} -+ -+/** -+ * This interrupt indicates that the ISO OUT Packet was dropped due to -+ * Rx FIFO full or Rx Status Queue Full. If this interrupt occurs -+ * read all the data from the Rx FIFO. -+ */ -+int32_t dwc_otg_pcd_handle_isoc_out_packet_dropped_intr(dwc_otg_pcd_t *pcd) -+{ -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ gintsts_data_t gintsts; -+ -+ DWC_PRINT("INTERRUPT Handler not implemented for %s\n", -+ "ISOC Out Dropped"); -+ -+ intr_mask.b.isooutdrop = 1; -+ dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, -+ intr_mask.d32, 0); -+ -+ /* Clear interrupt */ -+ -+ gintsts.d32 = 0; -+ gintsts.b.isooutdrop = 1; -+ dwc_write_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, -+ gintsts.d32); -+ -+ return 1; -+} -+ -+/** -+ * This interrupt indicates the end of the portion of the micro-frame -+ * for periodic transactions. If there is a periodic transaction for -+ * the next frame, load the packets into the EP periodic Tx FIFO. -+ */ -+int32_t dwc_otg_pcd_handle_end_periodic_frame_intr(dwc_otg_pcd_t *pcd) -+{ -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ gintsts_data_t gintsts; -+ DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "EOP"); -+ -+ intr_mask.b.eopframe = 1; -+ dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, -+ intr_mask.d32, 0); -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.eopframe = 1; -+ dwc_write_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, gintsts.d32); -+ -+ return 1; -+} -+ -+/** -+ * This interrupt indicates that EP of the packet on the top of the -+ * non-periodic Tx FIFO does not match EP of the IN Token received. -+ * -+ * The "Device IN Token Queue" Registers are read to determine the -+ * order the IN Tokens have been received. The non-periodic Tx FIFO -+ * is flushed, so it can be reloaded in the order seen in the IN Token -+ * Queue. -+ */ -+int32_t dwc_otg_pcd_handle_ep_mismatch_intr(dwc_otg_core_if_t *core_if) -+{ -+ gintsts_data_t gintsts; -+ DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, core_if); -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.epmismatch = 1; -+ dwc_write_reg32 (&core_if->core_global_regs->gintsts, gintsts.d32); -+ -+ return 1; -+} -+ -+/** -+ * This funcion stalls EP0. -+ */ -+static inline void ep0_do_stall(dwc_otg_pcd_t *pcd, const int err_val) -+{ -+ dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; -+ struct usb_ctrlrequest *ctrl = &pcd->setup_pkt->req; -+ DWC_WARN("req %02x.%02x protocol STALL; err %d\n", -+ ctrl->bRequestType, ctrl->bRequest, err_val); -+ -+ ep0->dwc_ep.is_in = 1; -+ dwc_otg_ep_set_stall(pcd->otg_dev->core_if, &ep0->dwc_ep); -+ pcd->ep0.stopped = 1; -+ pcd->ep0state = EP0_IDLE; -+ ep0_out_start(GET_CORE_IF(pcd), pcd); -+} -+ -+/** -+ * This functions delegates the setup command to the gadget driver. -+ */ -+static inline void do_gadget_setup(dwc_otg_pcd_t *pcd, -+ struct usb_ctrlrequest * ctrl) -+{ -+ int ret = 0; -+ if (pcd->driver && pcd->driver->setup) { -+ SPIN_UNLOCK(&pcd->lock); -+ ret = pcd->driver->setup(&pcd->gadget, ctrl); -+ SPIN_LOCK(&pcd->lock); -+ if (ret < 0) { -+ ep0_do_stall(pcd, ret); -+ } -+ -+ /** @todo This is a g_file_storage gadget driver specific -+ * workaround: a DELAYED_STATUS result from the fsg_setup -+ * routine will result in the gadget queueing a EP0 IN status -+ * phase for a two-stage control transfer. Exactly the same as -+ * a SET_CONFIGURATION/SET_INTERFACE except that this is a class -+ * specific request. Need a generic way to know when the gadget -+ * driver will queue the status phase. Can we assume when we -+ * call the gadget driver setup() function that it will always -+ * queue and require the following flag? Need to look into -+ * this. -+ */ -+ -+ if (ret == 256 + 999) { -+ pcd->request_config = 1; -+ } -+ } -+} -+ -+/** -+ * This function starts the Zero-Length Packet for the IN status phase -+ * of a 2 stage control transfer. -+ */ -+static inline void do_setup_in_status_phase(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; -+ if (pcd->ep0state == EP0_STALL) { -+ return; -+ } -+ -+ pcd->ep0state = EP0_IN_STATUS_PHASE; -+ -+ /* Prepare for more SETUP Packets */ -+ DWC_DEBUGPL(DBG_PCD, "EP0 IN ZLP\n"); -+ ep0->dwc_ep.xfer_len = 0; -+ ep0->dwc_ep.xfer_count = 0; -+ ep0->dwc_ep.is_in = 1; -+ ep0->dwc_ep.dma_addr = pcd->setup_pkt_dma_handle; -+ dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep); -+ -+ /* Prepare for more SETUP Packets */ -+// if(GET_CORE_IF(pcd)->dma_enable == 0) ep0_out_start(GET_CORE_IF(pcd), pcd); -+} -+ -+/** -+ * This function starts the Zero-Length Packet for the OUT status phase -+ * of a 2 stage control transfer. -+ */ -+static inline void do_setup_out_status_phase(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; -+ if (pcd->ep0state == EP0_STALL) { -+ DWC_DEBUGPL(DBG_PCD, "EP0 STALLED\n"); -+ return; -+ } -+ pcd->ep0state = EP0_OUT_STATUS_PHASE; -+ -+ DWC_DEBUGPL(DBG_PCD, "EP0 OUT ZLP\n"); -+ ep0->dwc_ep.xfer_len = 0; -+ ep0->dwc_ep.xfer_count = 0; -+ ep0->dwc_ep.is_in = 0; -+ ep0->dwc_ep.dma_addr = pcd->setup_pkt_dma_handle; -+ dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep); -+ -+ /* Prepare for more SETUP Packets */ -+ if(GET_CORE_IF(pcd)->dma_enable == 0) { -+ ep0_out_start(GET_CORE_IF(pcd), pcd); -+ } -+} -+ -+/** -+ * Clear the EP halt (STALL) and if pending requests start the -+ * transfer. -+ */ -+static inline void pcd_clear_halt(dwc_otg_pcd_t *pcd, dwc_otg_pcd_ep_t *ep) -+{ -+ if(ep->dwc_ep.stall_clear_flag == 0) -+ dwc_otg_ep_clear_stall(GET_CORE_IF(pcd), &ep->dwc_ep); -+ -+ /* Reactive the EP */ -+ dwc_otg_ep_activate(GET_CORE_IF(pcd), &ep->dwc_ep); -+ if (ep->stopped) { -+ ep->stopped = 0; -+ /* If there is a request in the EP queue start it */ -+ -+ /** @todo FIXME: this causes an EP mismatch in DMA mode. -+ * epmismatch not yet implemented. */ -+ -+ /* -+ * Above fixme is solved by implmenting a tasklet to call the -+ * start_next_request(), outside of interrupt context at some -+ * time after the current time, after a clear-halt setup packet. -+ * Still need to implement ep mismatch in the future if a gadget -+ * ever uses more than one endpoint at once -+ */ -+ ep->queue_sof = 1; -+ tasklet_schedule (pcd->start_xfer_tasklet); -+ } -+ /* Start Control Status Phase */ -+ do_setup_in_status_phase(pcd); -+} -+ -+/** -+ * This function is called when the SET_FEATURE TEST_MODE Setup packet -+ * is sent from the host. The Device Control register is written with -+ * the Test Mode bits set to the specified Test Mode. This is done as -+ * a tasklet so that the "Status" phase of the control transfer -+ * completes before transmitting the TEST packets. -+ * -+ * @todo This has not been tested since the tasklet struct was put -+ * into the PCD struct! -+ * -+ */ -+static void do_test_mode(unsigned long data) -+{ -+ dctl_data_t dctl; -+ dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *)data; -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ int test_mode = pcd->test_mode; -+ -+ -+// DWC_WARN("%s() has not been tested since being rewritten!\n", __func__); -+ -+ dctl.d32 = dwc_read_reg32(&core_if->dev_if->dev_global_regs->dctl); -+ switch (test_mode) { -+ case 1: // TEST_J -+ dctl.b.tstctl = 1; -+ break; -+ -+ case 2: // TEST_K -+ dctl.b.tstctl = 2; -+ break; -+ -+ case 3: // TEST_SE0_NAK -+ dctl.b.tstctl = 3; -+ break; -+ -+ case 4: // TEST_PACKET -+ dctl.b.tstctl = 4; -+ break; -+ -+ case 5: // TEST_FORCE_ENABLE -+ dctl.b.tstctl = 5; -+ break; -+ } -+ dwc_write_reg32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32); -+} -+ -+/** -+ * This function process the GET_STATUS Setup Commands. -+ */ -+static inline void do_get_status(dwc_otg_pcd_t *pcd) -+{ -+ struct usb_ctrlrequest ctrl = pcd->setup_pkt->req; -+ dwc_otg_pcd_ep_t *ep; -+ dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; -+ uint16_t *status = pcd->status_buf; -+ -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCD, -+ "GET_STATUS %02x.%02x v%04x i%04x l%04x\n", -+ ctrl.bRequestType, ctrl.bRequest, -+ ctrl.wValue, ctrl.wIndex, ctrl.wLength); -+#endif -+ -+ switch (ctrl.bRequestType & USB_RECIP_MASK) { -+ case USB_RECIP_DEVICE: -+ *status = 0x1; /* Self powered */ -+ *status |= pcd->remote_wakeup_enable << 1; -+ break; -+ -+ case USB_RECIP_INTERFACE: -+ *status = 0; -+ break; -+ -+ case USB_RECIP_ENDPOINT: -+ ep = get_ep_by_addr(pcd, ctrl.wIndex); -+ if (ep == 0 || ctrl.wLength > 2) { -+ ep0_do_stall(pcd, -EOPNOTSUPP); -+ return; -+ } -+ /** @todo check for EP stall */ -+ *status = ep->stopped; -+ break; -+ } -+ pcd->ep0_pending = 1; -+ ep0->dwc_ep.start_xfer_buff = (uint8_t *)status; -+ ep0->dwc_ep.xfer_buff = (uint8_t *)status; -+ ep0->dwc_ep.dma_addr = pcd->status_buf_dma_handle; -+ ep0->dwc_ep.xfer_len = 2; -+ ep0->dwc_ep.xfer_count = 0; -+ ep0->dwc_ep.total_len = ep0->dwc_ep.xfer_len; -+ dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep); -+} -+/** -+ * This function process the SET_FEATURE Setup Commands. -+ */ -+static inline void do_set_feature(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_core_global_regs_t *global_regs = -+ core_if->core_global_regs; -+ struct usb_ctrlrequest ctrl = pcd->setup_pkt->req; -+ dwc_otg_pcd_ep_t *ep = 0; -+ int32_t otg_cap_param = core_if->core_params->otg_cap; -+ gotgctl_data_t gotgctl = { .d32 = 0 }; -+ -+ DWC_DEBUGPL(DBG_PCD, "SET_FEATURE:%02x.%02x v%04x i%04x l%04x\n", -+ ctrl.bRequestType, ctrl.bRequest, -+ ctrl.wValue, ctrl.wIndex, ctrl.wLength); -+ DWC_DEBUGPL(DBG_PCD,"otg_cap=%d\n", otg_cap_param); -+ -+ -+ switch (ctrl.bRequestType & USB_RECIP_MASK) { -+ case USB_RECIP_DEVICE: -+ switch (ctrl.wValue) { -+ case USB_DEVICE_REMOTE_WAKEUP: -+ pcd->remote_wakeup_enable = 1; -+ break; -+ -+ case USB_DEVICE_TEST_MODE: -+ /* Setup the Test Mode tasklet to do the Test -+ * Packet generation after the SETUP Status -+ * phase has completed. */ -+ -+ /** @todo This has not been tested since the -+ * tasklet struct was put into the PCD -+ * struct! */ -+ pcd->test_mode_tasklet.next = 0; -+ pcd->test_mode_tasklet.state = 0; -+ atomic_set(&pcd->test_mode_tasklet.count, 0); -+ pcd->test_mode_tasklet.func = do_test_mode; -+ pcd->test_mode_tasklet.data = (unsigned long)pcd; -+ pcd->test_mode = ctrl.wIndex >> 8; -+ tasklet_schedule(&pcd->test_mode_tasklet); -+ break; -+ -+ case USB_DEVICE_B_HNP_ENABLE: -+ DWC_DEBUGPL(DBG_PCDV, "SET_FEATURE: USB_DEVICE_B_HNP_ENABLE\n"); -+ -+ /* dev may initiate HNP */ -+ if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) { -+ pcd->b_hnp_enable = 1; -+ dwc_otg_pcd_update_otg(pcd, 0); -+ DWC_DEBUGPL(DBG_PCD, "Request B HNP\n"); -+ /**@todo Is the gotgctl.devhnpen cleared -+ * by a USB Reset? */ -+ gotgctl.b.devhnpen = 1; -+ gotgctl.b.hnpreq = 1; -+ dwc_write_reg32(&global_regs->gotgctl, gotgctl.d32); -+ } -+ else { -+ ep0_do_stall(pcd, -EOPNOTSUPP); -+ } -+ break; -+ -+ case USB_DEVICE_A_HNP_SUPPORT: -+ /* RH port supports HNP */ -+ DWC_DEBUGPL(DBG_PCDV, "SET_FEATURE: USB_DEVICE_A_HNP_SUPPORT\n"); -+ if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) { -+ pcd->a_hnp_support = 1; -+ dwc_otg_pcd_update_otg(pcd, 0); -+ } -+ else { -+ ep0_do_stall(pcd, -EOPNOTSUPP); -+ } -+ break; -+ -+ case USB_DEVICE_A_ALT_HNP_SUPPORT: -+ /* other RH port does */ -+ DWC_DEBUGPL(DBG_PCDV, "SET_FEATURE: USB_DEVICE_A_ALT_HNP_SUPPORT\n"); -+ if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) { -+ pcd->a_alt_hnp_support = 1; -+ dwc_otg_pcd_update_otg(pcd, 0); -+ } -+ else { -+ ep0_do_stall(pcd, -EOPNOTSUPP); -+ } -+ break; -+ } -+ do_setup_in_status_phase(pcd); -+ break; -+ -+ case USB_RECIP_INTERFACE: -+ do_gadget_setup(pcd, &ctrl); -+ break; -+ -+ case USB_RECIP_ENDPOINT: -+ if (ctrl.wValue == USB_ENDPOINT_HALT) { -+ ep = get_ep_by_addr(pcd, ctrl.wIndex); -+ if (ep == 0) { -+ ep0_do_stall(pcd, -EOPNOTSUPP); -+ return; -+ } -+ ep->stopped = 1; -+ dwc_otg_ep_set_stall(core_if, &ep->dwc_ep); -+ } -+ do_setup_in_status_phase(pcd); -+ break; -+ } -+} -+ -+/** -+ * This function process the CLEAR_FEATURE Setup Commands. -+ */ -+static inline void do_clear_feature(dwc_otg_pcd_t *pcd) -+{ -+ struct usb_ctrlrequest ctrl = pcd->setup_pkt->req; -+ dwc_otg_pcd_ep_t *ep = 0; -+ -+ DWC_DEBUGPL(DBG_PCD, -+ "CLEAR_FEATURE:%02x.%02x v%04x i%04x l%04x\n", -+ ctrl.bRequestType, ctrl.bRequest, -+ ctrl.wValue, ctrl.wIndex, ctrl.wLength); -+ -+ switch (ctrl.bRequestType & USB_RECIP_MASK) { -+ case USB_RECIP_DEVICE: -+ switch (ctrl.wValue) { -+ case USB_DEVICE_REMOTE_WAKEUP: -+ pcd->remote_wakeup_enable = 0; -+ break; -+ -+ case USB_DEVICE_TEST_MODE: -+ /** @todo Add CLEAR_FEATURE for TEST modes. */ -+ break; -+ } -+ do_setup_in_status_phase(pcd); -+ break; -+ -+ case USB_RECIP_ENDPOINT: -+ ep = get_ep_by_addr(pcd, ctrl.wIndex); -+ if (ep == 0) { -+ ep0_do_stall(pcd, -EOPNOTSUPP); -+ return; -+ } -+ -+ pcd_clear_halt(pcd, ep); -+ -+ break; -+ } -+} -+ -+/** -+ * This function process the SET_ADDRESS Setup Commands. -+ */ -+static inline void do_set_address(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if; -+ struct usb_ctrlrequest ctrl = pcd->setup_pkt->req; -+ -+ if (ctrl.bRequestType == USB_RECIP_DEVICE) { -+ dcfg_data_t dcfg = {.d32=0}; -+ -+#ifdef DEBUG_EP0 -+// DWC_DEBUGPL(DBG_PCDV, "SET_ADDRESS:%d\n", ctrl.wValue); -+#endif -+ dcfg.b.devaddr = ctrl.wValue; -+ dwc_modify_reg32(&dev_if->dev_global_regs->dcfg, 0, dcfg.d32); -+ do_setup_in_status_phase(pcd); -+ } -+} -+ -+/** -+ * This function processes SETUP commands. In Linux, the USB Command -+ * processing is done in two places - the first being the PCD and the -+ * second in the Gadget Driver (for example, the File-Backed Storage -+ * Gadget Driver). -+ * -+ * <table> -+ * <tr><td>Command </td><td>Driver </td><td>Description</td></tr> -+ * -+ * <tr><td>GET_STATUS </td><td>PCD </td><td>Command is processed as -+ * defined in chapter 9 of the USB 2.0 Specification chapter 9 -+ * </td></tr> -+ * -+ * <tr><td>CLEAR_FEATURE </td><td>PCD </td><td>The Device and Endpoint -+ * requests are the ENDPOINT_HALT feature is procesed, all others the -+ * interface requests are ignored.</td></tr> -+ * -+ * <tr><td>SET_FEATURE </td><td>PCD </td><td>The Device and Endpoint -+ * requests are processed by the PCD. Interface requests are passed -+ * to the Gadget Driver.</td></tr> -+ * -+ * <tr><td>SET_ADDRESS </td><td>PCD </td><td>Program the DCFG reg, -+ * with device address received </td></tr> -+ * -+ * <tr><td>GET_DESCRIPTOR </td><td>Gadget Driver </td><td>Return the -+ * requested descriptor</td></tr> -+ * -+ * <tr><td>SET_DESCRIPTOR </td><td>Gadget Driver </td><td>Optional - -+ * not implemented by any of the existing Gadget Drivers.</td></tr> -+ * -+ * <tr><td>SET_CONFIGURATION </td><td>Gadget Driver </td><td>Disable -+ * all EPs and enable EPs for new configuration.</td></tr> -+ * -+ * <tr><td>GET_CONFIGURATION </td><td>Gadget Driver </td><td>Return -+ * the current configuration</td></tr> -+ * -+ * <tr><td>SET_INTERFACE </td><td>Gadget Driver </td><td>Disable all -+ * EPs and enable EPs for new configuration.</td></tr> -+ * -+ * <tr><td>GET_INTERFACE </td><td>Gadget Driver </td><td>Return the -+ * current interface.</td></tr> -+ * -+ * <tr><td>SYNC_FRAME </td><td>PCD </td><td>Display debug -+ * message.</td></tr> -+ * </table> -+ * -+ * When the SETUP Phase Done interrupt occurs, the PCD SETUP commands are -+ * processed by pcd_setup. Calling the Function Driver's setup function from -+ * pcd_setup processes the gadget SETUP commands. -+ */ -+static inline void pcd_setup(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ struct usb_ctrlrequest ctrl = pcd->setup_pkt->req; -+ dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; -+ -+ deptsiz0_data_t doeptsize0 = { .d32 = 0}; -+ -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCD, "SETUP %02x.%02x v%04x i%04x l%04x\n", -+ ctrl.bRequestType, ctrl.bRequest, -+ ctrl.wValue, ctrl.wIndex, ctrl.wLength); -+#endif -+ -+ doeptsize0.d32 = dwc_read_reg32(&dev_if->out_ep_regs[0]->doeptsiz); -+ -+ /** @todo handle > 1 setup packet , assert error for now */ -+ -+ if (core_if->dma_enable && core_if->dma_desc_enable == 0 && (doeptsize0.b.supcnt < 2)) { -+ DWC_ERROR ("\n\n----------- CANNOT handle > 1 setup packet in DMA mode\n\n"); -+ } -+ -+ /* Clean up the request queue */ -+ dwc_otg_request_nuke(ep0); -+ ep0->stopped = 0; -+ -+ if (ctrl.bRequestType & USB_DIR_IN) { -+ ep0->dwc_ep.is_in = 1; -+ pcd->ep0state = EP0_IN_DATA_PHASE; -+ } -+ else { -+ ep0->dwc_ep.is_in = 0; -+ pcd->ep0state = EP0_OUT_DATA_PHASE; -+ } -+ -+ if(ctrl.wLength == 0) { -+ ep0->dwc_ep.is_in = 1; -+ pcd->ep0state = EP0_IN_STATUS_PHASE; -+ } -+ -+ if ((ctrl.bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD) { -+ /* handle non-standard (class/vendor) requests in the gadget driver */ -+ do_gadget_setup(pcd, &ctrl); -+ return; -+ } -+ -+ /** @todo NGS: Handle bad setup packet? */ -+ -+/////////////////////////////////////////// -+//// --- Standard Request handling --- //// -+ -+ switch (ctrl.bRequest) { -+ case USB_REQ_GET_STATUS: -+ do_get_status(pcd); -+ break; -+ -+ case USB_REQ_CLEAR_FEATURE: -+ do_clear_feature(pcd); -+ break; -+ -+ case USB_REQ_SET_FEATURE: -+ do_set_feature(pcd); -+ break; -+ -+ case USB_REQ_SET_ADDRESS: -+ do_set_address(pcd); -+ break; -+ -+ case USB_REQ_SET_INTERFACE: -+ case USB_REQ_SET_CONFIGURATION: -+// _pcd->request_config = 1; /* Configuration changed */ -+ do_gadget_setup(pcd, &ctrl); -+ break; -+ -+ case USB_REQ_SYNCH_FRAME: -+ do_gadget_setup(pcd, &ctrl); -+ break; -+ -+ default: -+ /* Call the Gadget Driver's setup functions */ -+ do_gadget_setup(pcd, &ctrl); -+ break; -+ } -+} -+ -+/** -+ * This function completes the ep0 control transfer. -+ */ -+static int32_t ep0_complete_request(dwc_otg_pcd_ep_t *ep) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd); -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ dwc_otg_dev_in_ep_regs_t *in_ep_regs = -+ dev_if->in_ep_regs[ep->dwc_ep.num]; -+#ifdef DEBUG_EP0 -+ dwc_otg_dev_out_ep_regs_t *out_ep_regs = -+ dev_if->out_ep_regs[ep->dwc_ep.num]; -+#endif -+ deptsiz0_data_t deptsiz; -+ desc_sts_data_t desc_sts; -+ dwc_otg_pcd_request_t *req; -+ int is_last = 0; -+ dwc_otg_pcd_t *pcd = ep->pcd; -+ -+ //DWC_DEBUGPL(DBG_PCDV, "%s() %s\n", __func__, _ep->ep.name); -+ -+ if (pcd->ep0_pending && list_empty(&ep->queue)) { -+ if (ep->dwc_ep.is_in) { -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCDV, "Do setup OUT status phase\n"); -+#endif -+ do_setup_out_status_phase(pcd); -+ } -+ else { -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCDV, "Do setup IN status phase\n"); -+#endif -+ do_setup_in_status_phase(pcd); -+ } -+ pcd->ep0_pending = 0; -+ return 1; -+ } -+ -+ if (list_empty(&ep->queue)) { -+ return 0; -+ } -+ req = list_entry(ep->queue.next, dwc_otg_pcd_request_t, queue); -+ -+ -+ if (pcd->ep0state == EP0_OUT_STATUS_PHASE || pcd->ep0state == EP0_IN_STATUS_PHASE) { -+ is_last = 1; -+ } -+ else if (ep->dwc_ep.is_in) { -+ deptsiz.d32 = dwc_read_reg32(&in_ep_regs->dieptsiz); -+ if(core_if->dma_desc_enable != 0) -+ desc_sts.d32 = readl(dev_if->in_desc_addr); -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCDV, "%s len=%d xfersize=%d pktcnt=%d\n", -+ ep->ep.name, ep->dwc_ep.xfer_len, -+ deptsiz.b.xfersize, deptsiz.b.pktcnt); -+#endif -+ -+ if (((core_if->dma_desc_enable == 0) && (deptsiz.b.xfersize == 0)) || -+ ((core_if->dma_desc_enable != 0) && (desc_sts.b.bytes == 0))) { -+ req->req.actual = ep->dwc_ep.xfer_count; -+ /* Is a Zero Len Packet needed? */ -+ if (req->req.zero) { -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCD, "Setup Rx ZLP\n"); -+#endif -+ req->req.zero = 0; -+ } -+ do_setup_out_status_phase(pcd); -+ } -+ } -+ else { -+ /* ep0-OUT */ -+#ifdef DEBUG_EP0 -+ deptsiz.d32 = dwc_read_reg32(&out_ep_regs->doeptsiz); -+ DWC_DEBUGPL(DBG_PCDV, "%s len=%d xsize=%d pktcnt=%d\n", -+ ep->ep.name, ep->dwc_ep.xfer_len, -+ deptsiz.b.xfersize, -+ deptsiz.b.pktcnt); -+#endif -+ req->req.actual = ep->dwc_ep.xfer_count; -+ /* Is a Zero Len Packet needed? */ -+ if (req->req.zero) { -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCDV, "Setup Tx ZLP\n"); -+#endif -+ req->req.zero = 0; -+ } -+ if(core_if->dma_desc_enable == 0) -+ do_setup_in_status_phase(pcd); -+ } -+ -+ /* Complete the request */ -+ if (is_last) { -+ dwc_otg_request_done(ep, req, 0); -+ ep->dwc_ep.start_xfer_buff = 0; -+ ep->dwc_ep.xfer_buff = 0; -+ ep->dwc_ep.xfer_len = 0; -+ return 1; -+ } -+ return 0; -+} -+ -+inline void aligned_buf_patch_on_buf_dma_oep_completion(dwc_otg_pcd_ep_t *ep, uint32_t byte_count) -+{ -+ dwc_ep_t *dwc_ep = &ep->dwc_ep; -+ if(byte_count && dwc_ep->aligned_buf && -+ dwc_ep->dma_addr>=dwc_ep->aligned_dma_addr && -+ dwc_ep->dma_addr<=(dwc_ep->aligned_dma_addr+dwc_ep->aligned_buf_size))\ -+ { -+ //aligned buf used, apply complete patch -+ u32 offset=(dwc_ep->dma_addr-dwc_ep->aligned_dma_addr); -+ memcpy(dwc_ep->start_xfer_buff+offset, dwc_ep->aligned_buf+offset, byte_count); -+ } -+} -+ -+/** -+ * This function completes the request for the EP. If there are -+ * additional requests for the EP in the queue they will be started. -+ */ -+static void complete_ep(dwc_otg_pcd_ep_t *ep) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd); -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ dwc_otg_dev_in_ep_regs_t *in_ep_regs = -+ dev_if->in_ep_regs[ep->dwc_ep.num]; -+ deptsiz_data_t deptsiz; -+ desc_sts_data_t desc_sts; -+ dwc_otg_pcd_request_t *req = 0; -+ dwc_otg_dma_desc_t* dma_desc; -+ uint32_t byte_count = 0; -+ int is_last = 0; -+ int i; -+ -+ DWC_DEBUGPL(DBG_PCDV,"%s() %s-%s\n", __func__, ep->ep.name, -+ (ep->dwc_ep.is_in?"IN":"OUT")); -+ -+ /* Get any pending requests */ -+ if (!list_empty(&ep->queue)) { -+ req = list_entry(ep->queue.next, dwc_otg_pcd_request_t, -+ queue); -+ if (!req) { -+ printk("complete_ep 0x%p, req = NULL!\n", ep); -+ return; -+ } -+ } -+ else { -+ printk("complete_ep 0x%p, ep->queue empty!\n", ep); -+ return; -+ } -+ DWC_DEBUGPL(DBG_PCD, "Requests %d\n", ep->pcd->request_pending); -+ -+ if (ep->dwc_ep.is_in) { -+ deptsiz.d32 = dwc_read_reg32(&in_ep_regs->dieptsiz); -+ -+ if (core_if->dma_enable) { -+ //dma_unmap_single(NULL,ep->dwc_ep.dma_addr,ep->dwc_ep.xfer_count,DMA_NONE); -+ if(core_if->dma_desc_enable == 0) { -+ //dma_unmap_single(NULL,ep->dwc_ep.dma_addr,ep->dwc_ep.xfer_count,DMA_NONE); -+ if (deptsiz.b.xfersize == 0 && deptsiz.b.pktcnt == 0) { -+ byte_count = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; -+DWC_DEBUGPL(DBG_PCDV,"byte_count(%.8x) = (ep->dwc_ep.xfer_len(%.8x) - ep->dwc_ep.xfer_count(%.8x)\n", byte_count ,ep->dwc_ep.xfer_len , ep->dwc_ep.xfer_count ); -+ -+ ep->dwc_ep.xfer_buff += byte_count; -+ ep->dwc_ep.dma_addr += byte_count; -+ ep->dwc_ep.xfer_count += byte_count; -+ -+ DWC_DEBUGPL(DBG_PCDV, "%s len=%d xfersize=%d pktcnt=%d\n", -+ ep->ep.name, ep->dwc_ep.xfer_len, -+ deptsiz.b.xfersize, deptsiz.b.pktcnt); -+ -+ if(ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { -+ //dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); -+printk("Warning: transfer ended, but specified len is not accomplished!! ep->total_len=%.x,ep->dwc_ep.sent_zlp=%d, byte_count(%.8x) = (ep->dwc_ep.xfer_len(%.8x) - ep->dwc_ep.xfer_count(%.8x) - deptsiz.b.xfersize(%.8x)\n", ep->dwc_ep.total_len, ep->dwc_ep.sent_zlp, byte_count ,ep->dwc_ep.xfer_len , ep->dwc_ep.xfer_count , deptsiz.b.xfersize); -+ } else if(ep->dwc_ep.sent_zlp) { -+ /* -+ * This fragment of code should initiate 0 -+ * length trasfer in case if it is queued -+ * a trasfer with size divisible to EPs max -+ * packet size and with usb_request zero field -+ * is set, which means that after data is transfered, -+ * it is also should be transfered -+ * a 0 length packet at the end. For Slave and -+ * Buffer DMA modes in this case SW has -+ * to initiate 2 transfers one with transfer size, -+ * and the second with 0 size. For Desriptor -+ * DMA mode SW is able to initiate a transfer, -+ * which will handle all the packets including -+ * the last 0 legth. -+ */ -+ ep->dwc_ep.sent_zlp = 0; -+ dwc_otg_ep_start_zl_transfer(core_if, &ep->dwc_ep); -+ } else { -+ is_last = 1; -+ } -+ } else { -+ DWC_WARN("Incomplete transfer (%s-%s [siz=%d pkt=%d])\n", -+ ep->ep.name, (ep->dwc_ep.is_in?"IN":"OUT"), -+ deptsiz.b.xfersize, deptsiz.b.pktcnt); -+ } -+ } else { -+ -+ dma_desc = ep->dwc_ep.desc_addr; -+ byte_count = 0; -+ ep->dwc_ep.sent_zlp = 0; -+ -+ for(i = 0; i < ep->dwc_ep.desc_cnt; ++i) { -+ desc_sts.d32 = readl(dma_desc); -+ byte_count += desc_sts.b.bytes; -+ dma_desc++; -+ } -+ -+ if(byte_count == 0) { -+ ep->dwc_ep.xfer_count = ep->dwc_ep.total_len; -+ is_last = 1; -+ } else { -+ DWC_WARN("Incomplete transfer\n"); -+ } -+ } -+ } else { -+ if (deptsiz.b.xfersize == 0 && deptsiz.b.pktcnt == 0) { -+ /* Check if the whole transfer was completed, -+ * if no, setup transfer for next portion of data -+ */ -+ DWC_DEBUGPL(DBG_PCDV, "%s len=%d xfersize=%d pktcnt=%d\n", -+ ep->ep.name, ep->dwc_ep.xfer_len, -+ deptsiz.b.xfersize, deptsiz.b.pktcnt); -+ if(ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { -+ //dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); -+printk("Warning: transfer ended, but specified len is not accomplished!! ep->total_len=%.x,ep->dwc_ep.sent_zlp=%d, ep->dwc_ep.xfer_len(%.8x) \n", ep->dwc_ep.total_len, ep->dwc_ep.sent_zlp, ep->dwc_ep.xfer_len ); -+ } else if(ep->dwc_ep.sent_zlp) { -+ /* -+ * This fragment of code should initiate 0 -+ * length trasfer in case if it is queued -+ * a trasfer with size divisible to EPs max -+ * packet size and with usb_request zero field -+ * is set, which means that after data is transfered, -+ * it is also should be transfered -+ * a 0 length packet at the end. For Slave and -+ * Buffer DMA modes in this case SW has -+ * to initiate 2 transfers one with transfer size, -+ * and the second with 0 size. For Desriptor -+ * DMA mode SW is able to initiate a transfer, -+ * which will handle all the packets including -+ * the last 0 legth. -+ */ -+ ep->dwc_ep.sent_zlp = 0; -+ dwc_otg_ep_start_zl_transfer(core_if, &ep->dwc_ep); -+ } else { -+ is_last = 1; -+ } -+ } -+ else { -+ DWC_WARN("Incomplete transfer (%s-%s [siz=%d pkt=%d])\n", -+ ep->ep.name, (ep->dwc_ep.is_in?"IN":"OUT"), -+ deptsiz.b.xfersize, deptsiz.b.pktcnt); -+ } -+ } -+ } else { -+ dwc_otg_dev_out_ep_regs_t *out_ep_regs = -+ dev_if->out_ep_regs[ep->dwc_ep.num]; -+ desc_sts.d32 = 0; -+ if(core_if->dma_enable) { -+ //dma_unmap_single(NULL,ep->dwc_ep.dma_addr,ep->dwc_ep.xfer_count,DMA_FROM_DEVICE); -+ if(core_if->dma_desc_enable) { -+ DWC_WARN("\n\n%s: we need a cache invalidation here!!\n\n",__func__); -+ dma_desc = ep->dwc_ep.desc_addr; -+ byte_count = 0; -+ ep->dwc_ep.sent_zlp = 0; -+ for(i = 0; i < ep->dwc_ep.desc_cnt; ++i) { -+ desc_sts.d32 = readl(dma_desc); -+ byte_count += desc_sts.b.bytes; -+ dma_desc++; -+ } -+ -+ ep->dwc_ep.xfer_count = ep->dwc_ep.total_len -+ - byte_count + ((4 - (ep->dwc_ep.total_len & 0x3)) & 0x3); -+ -+ //todo: invalidate cache & aligned buf patch on completion -+ // -+ -+ is_last = 1; -+ } else { -+ deptsiz.d32 = 0; -+ deptsiz.d32 = dwc_read_reg32(&out_ep_regs->doeptsiz); -+ -+ byte_count = (ep->dwc_ep.xfer_len - -+ ep->dwc_ep.xfer_count - deptsiz.b.xfersize); -+ -+// dma_sync_single_for_device(NULL,ep->dwc_ep.dma_addr,byte_count,DMA_FROM_DEVICE); -+ -+DWC_DEBUGPL(DBG_PCDV,"ep->total_len=%.x,ep->dwc_ep.sent_zlp=%d, byte_count(%.8x) = (ep->dwc_ep.xfer_len(%.8x) - ep->dwc_ep.xfer_count(%.8x) - deptsiz.b.xfersize(%.8x)\n", ep->dwc_ep.total_len, ep->dwc_ep.sent_zlp, byte_count ,ep->dwc_ep.xfer_len , ep->dwc_ep.xfer_count , deptsiz.b.xfersize); -+ //todo: invalidate cache & aligned buf patch on completion -+ dma_sync_single_for_device(NULL,ep->dwc_ep.dma_addr,byte_count,DMA_FROM_DEVICE); -+ aligned_buf_patch_on_buf_dma_oep_completion(ep,byte_count); -+ -+ ep->dwc_ep.xfer_buff += byte_count; -+ ep->dwc_ep.dma_addr += byte_count; -+ ep->dwc_ep.xfer_count += byte_count; -+ -+ /* Check if the whole transfer was completed, -+ * if no, setup transfer for next portion of data -+ */ -+ if(ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { -+ //dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); -+printk("Warning: transfer ended, but specified len is not accomplished!! ep->total_len=%.x,ep->dwc_ep.sent_zlp=%d, byte_count(%.8x) = (ep->dwc_ep.xfer_len(%.8x) - ep->dwc_ep.xfer_count(%.8x) - deptsiz.b.xfersize(%.8x)\n", ep->dwc_ep.total_len, ep->dwc_ep.sent_zlp, byte_count ,ep->dwc_ep.xfer_len , ep->dwc_ep.xfer_count , deptsiz.b.xfersize); -+ } -+ else if(ep->dwc_ep.sent_zlp) { -+ /* -+ * This fragment of code should initiate 0 -+ * length trasfer in case if it is queued -+ * a trasfer with size divisible to EPs max -+ * packet size and with usb_request zero field -+ * is set, which means that after data is transfered, -+ * it is also should be transfered -+ * a 0 length packet at the end. For Slave and -+ * Buffer DMA modes in this case SW has -+ * to initiate 2 transfers one with transfer size, -+ * and the second with 0 size. For Desriptor -+ * DMA mode SW is able to initiate a transfer, -+ * which will handle all the packets including -+ * the last 0 legth. -+ */ -+ ep->dwc_ep.sent_zlp = 0; -+ dwc_otg_ep_start_zl_transfer(core_if, &ep->dwc_ep); -+ } else { -+ is_last = 1; -+ } -+ } -+ } else { -+ /* Check if the whole transfer was completed, -+ * if no, setup transfer for next portion of data -+ */ -+ if(ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { -+ //dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); -+printk("Warning: transfer ended, but specified len is not accomplished!! ep->total_len=%.x,ep->dwc_ep.sent_zlp=%d, ep->dwc_ep.xfer_len(%.8x) \n", ep->dwc_ep.total_len, ep->dwc_ep.sent_zlp, ep->dwc_ep.xfer_len ); -+ } -+ else if(ep->dwc_ep.sent_zlp) { -+ /* -+ * This fragment of code should initiate 0 -+ * length trasfer in case if it is queued -+ * a trasfer with size divisible to EPs max -+ * packet size and with usb_request zero field -+ * is set, which means that after data is transfered, -+ * it is also should be transfered -+ * a 0 length packet at the end. For Slave and -+ * Buffer DMA modes in this case SW has -+ * to initiate 2 transfers one with transfer size, -+ * and the second with 0 size. For Desriptor -+ * DMA mode SW is able to initiate a transfer, -+ * which will handle all the packets including -+ * the last 0 legth. -+ */ -+ ep->dwc_ep.sent_zlp = 0; -+ dwc_otg_ep_start_zl_transfer(core_if, &ep->dwc_ep); -+ } else { -+ is_last = 1; -+ } -+ } -+ -+#ifdef DEBUG -+ -+ DWC_DEBUGPL(DBG_PCDV, "addr %p, %s len=%d cnt=%d xsize=%d pktcnt=%d\n", -+ &out_ep_regs->doeptsiz, ep->ep.name, ep->dwc_ep.xfer_len, -+ ep->dwc_ep.xfer_count, -+ deptsiz.b.xfersize, -+ deptsiz.b.pktcnt); -+#endif -+ } -+ -+ /* Complete the request */ -+ if (is_last) { -+ req->req.actual = ep->dwc_ep.xfer_count; -+ -+ dwc_otg_request_done(ep, req, 0); -+ -+ ep->dwc_ep.start_xfer_buff = 0; -+ ep->dwc_ep.xfer_buff = 0; -+ ep->dwc_ep.xfer_len = 0; -+ -+ /* If there is a request in the queue start it.*/ -+ start_next_request(ep); -+ } -+} -+ -+ -+#ifdef DWC_EN_ISOC -+ -+/** -+ * This function BNA interrupt for Isochronous EPs -+ * -+ */ -+static void dwc_otg_pcd_handle_iso_bna(dwc_otg_pcd_ep_t *ep) -+{ -+ dwc_ep_t *dwc_ep = &ep->dwc_ep; -+ volatile uint32_t *addr; -+ depctl_data_t depctl = {.d32 = 0}; -+ dwc_otg_pcd_t *pcd = ep->pcd; -+ dwc_otg_dma_desc_t *dma_desc; -+ int i; -+ -+ dma_desc = dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * (dwc_ep->proc_buf_num); -+ -+ if(dwc_ep->is_in) { -+ desc_sts_data_t sts = {.d32 = 0}; -+ for(i = 0;i < dwc_ep->desc_cnt; ++i, ++dma_desc) -+ { -+ sts.d32 = readl(&dma_desc->status); -+ sts.b_iso_in.bs = BS_HOST_READY; -+ writel(sts.d32,&dma_desc->status); -+ } -+ } -+ else { -+ desc_sts_data_t sts = {.d32 = 0}; -+ for(i = 0;i < dwc_ep->desc_cnt; ++i, ++dma_desc) -+ { -+ sts.d32 = readl(&dma_desc->status); -+ sts.b_iso_out.bs = BS_HOST_READY; -+ writel(sts.d32,&dma_desc->status); -+ } -+ } -+ -+ if(dwc_ep->is_in == 0){ -+ addr = &GET_CORE_IF(pcd)->dev_if->out_ep_regs[dwc_ep->num]->doepctl; -+ } -+ else{ -+ addr = &GET_CORE_IF(pcd)->dev_if->in_ep_regs[dwc_ep->num]->diepctl; -+ } -+ depctl.b.epena = 1; -+ dwc_modify_reg32(addr,depctl.d32,depctl.d32); -+} -+ -+/** -+ * This function sets latest iso packet information(non-PTI mode) -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to start the transfer on. -+ * -+ */ -+void set_current_pkt_info(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ deptsiz_data_t deptsiz = { .d32 = 0 }; -+ dma_addr_t dma_addr; -+ uint32_t offset; -+ -+ if(ep->proc_buf_num) -+ dma_addr = ep->dma_addr1; -+ else -+ dma_addr = ep->dma_addr0; -+ -+ if(ep->is_in) { -+ deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz); -+ offset = ep->data_per_frame; -+ } else { -+ deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doeptsiz); -+ offset = ep->data_per_frame + (0x4 & (0x4 - (ep->data_per_frame & 0x3))); -+ } -+ -+ if(!deptsiz.b.xfersize) { -+ ep->pkt_info[ep->cur_pkt].length = ep->data_per_frame; -+ ep->pkt_info[ep->cur_pkt].offset = ep->cur_pkt_dma_addr - dma_addr; -+ ep->pkt_info[ep->cur_pkt].status = 0; -+ } else { -+ ep->pkt_info[ep->cur_pkt].length = ep->data_per_frame; -+ ep->pkt_info[ep->cur_pkt].offset = ep->cur_pkt_dma_addr - dma_addr; -+ ep->pkt_info[ep->cur_pkt].status = -ENODATA; -+ } -+ ep->cur_pkt_addr += offset; -+ ep->cur_pkt_dma_addr += offset; -+ ep->cur_pkt++; -+} -+ -+/** -+ * This function sets latest iso packet information(DDMA mode) -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param dwc_ep The EP to start the transfer on. -+ * -+ */ -+static void set_ddma_iso_pkts_info(dwc_otg_core_if_t *core_if, dwc_ep_t *dwc_ep) -+{ -+ dwc_otg_dma_desc_t* dma_desc; -+ desc_sts_data_t sts = {.d32 = 0}; -+ iso_pkt_info_t *iso_packet; -+ uint32_t data_per_desc; -+ uint32_t offset; -+ int i, j; -+ -+ iso_packet = dwc_ep->pkt_info; -+ -+ /** Reinit closed DMA Descriptors*/ -+ /** ISO OUT EP */ -+ if(dwc_ep->is_in == 0) { -+ dma_desc = dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; -+ offset = 0; -+ -+ for(i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; i+= dwc_ep->pkt_per_frm) -+ { -+ for(j = 0; j < dwc_ep->pkt_per_frm; ++j) -+ { -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ -+ sts.d32 = readl(&dma_desc->status); -+ -+ /* Write status in iso_packet_decsriptor */ -+ iso_packet->status = sts.b_iso_out.rxsts + (sts.b_iso_out.bs^BS_DMA_DONE); -+ if(iso_packet->status) { -+ iso_packet->status = -ENODATA; -+ } -+ -+ /* Received data length */ -+ if(!sts.b_iso_out.rxbytes){ -+ iso_packet->length = data_per_desc - sts.b_iso_out.rxbytes; -+ } else { -+ iso_packet->length = data_per_desc - sts.b_iso_out.rxbytes + -+ (4 - dwc_ep->data_per_frame % 4); -+ } -+ -+ iso_packet->offset = offset; -+ -+ offset += data_per_desc; -+ dma_desc ++; -+ iso_packet ++; -+ } -+ } -+ -+ for(j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) -+ { -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ -+ sts.d32 = readl(&dma_desc->status); -+ -+ /* Write status in iso_packet_decsriptor */ -+ iso_packet->status = sts.b_iso_out.rxsts + (sts.b_iso_out.bs^BS_DMA_DONE); -+ if(iso_packet->status) { -+ iso_packet->status = -ENODATA; -+ } -+ -+ /* Received data length */ -+ iso_packet->length = dwc_ep->data_per_frame - sts.b_iso_out.rxbytes; -+ -+ iso_packet->offset = offset; -+ -+ offset += data_per_desc; -+ iso_packet++; -+ dma_desc++; -+ } -+ -+ sts.d32 = readl(&dma_desc->status); -+ -+ /* Write status in iso_packet_decsriptor */ -+ iso_packet->status = sts.b_iso_out.rxsts + (sts.b_iso_out.bs^BS_DMA_DONE); -+ if(iso_packet->status) { -+ iso_packet->status = -ENODATA; -+ } -+ /* Received data length */ -+ if(!sts.b_iso_out.rxbytes){ -+ iso_packet->length = dwc_ep->data_per_frame - sts.b_iso_out.rxbytes; -+ } else { -+ iso_packet->length = dwc_ep->data_per_frame - sts.b_iso_out.rxbytes + -+ (4 - dwc_ep->data_per_frame % 4); -+ } -+ -+ iso_packet->offset = offset; -+ } -+ else /** ISO IN EP */ -+ { -+ dma_desc = dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; -+ -+ for(i = 0; i < dwc_ep->desc_cnt - 1; i++) -+ { -+ sts.d32 = readl(&dma_desc->status); -+ -+ /* Write status in iso packet descriptor */ -+ iso_packet->status = sts.b_iso_in.txsts + (sts.b_iso_in.bs^BS_DMA_DONE); -+ if(iso_packet->status != 0) { -+ iso_packet->status = -ENODATA; -+ -+ } -+ /* Bytes has been transfered */ -+ iso_packet->length = dwc_ep->data_per_frame - sts.b_iso_in.txbytes; -+ -+ dma_desc ++; -+ iso_packet++; -+ } -+ -+ sts.d32 = readl(&dma_desc->status); -+ while(sts.b_iso_in.bs == BS_DMA_BUSY) { -+ sts.d32 = readl(&dma_desc->status); -+ } -+ -+ /* Write status in iso packet descriptor ??? do be done with ERROR codes*/ -+ iso_packet->status = sts.b_iso_in.txsts + (sts.b_iso_in.bs^BS_DMA_DONE); -+ if(iso_packet->status != 0) { -+ iso_packet->status = -ENODATA; -+ } -+ -+ /* Bytes has been transfered */ -+ iso_packet->length = dwc_ep->data_per_frame - sts.b_iso_in.txbytes; -+ } -+} -+ -+/** -+ * This function reinitialize DMA Descriptors for Isochronous transfer -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param dwc_ep The EP to start the transfer on. -+ * -+ */ -+static void reinit_ddma_iso_xfer(dwc_otg_core_if_t *core_if, dwc_ep_t *dwc_ep) -+{ -+ int i, j; -+ dwc_otg_dma_desc_t* dma_desc; -+ dma_addr_t dma_ad; -+ volatile uint32_t *addr; -+ desc_sts_data_t sts = { .d32 =0 }; -+ uint32_t data_per_desc; -+ -+ if(dwc_ep->is_in == 0) { -+ addr = &core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl; -+ } -+ else { -+ addr = &core_if->dev_if->in_ep_regs[dwc_ep->num]->diepctl; -+ } -+ -+ -+ if(dwc_ep->proc_buf_num == 0) { -+ /** Buffer 0 descriptors setup */ -+ dma_ad = dwc_ep->dma_addr0; -+ } -+ else { -+ /** Buffer 1 descriptors setup */ -+ dma_ad = dwc_ep->dma_addr1; -+ } -+ -+ /** Reinit closed DMA Descriptors*/ -+ /** ISO OUT EP */ -+ if(dwc_ep->is_in == 0) { -+ dma_desc = dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; -+ -+ sts.b_iso_out.bs = BS_HOST_READY; -+ sts.b_iso_out.rxsts = 0; -+ sts.b_iso_out.l = 0; -+ sts.b_iso_out.sp = 0; -+ sts.b_iso_out.ioc = 0; -+ sts.b_iso_out.pid = 0; -+ sts.b_iso_out.framenum = 0; -+ -+ for(i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; i+= dwc_ep->pkt_per_frm) -+ { -+ for(j = 0; j < dwc_ep->pkt_per_frm; ++j) -+ { -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ sts.b_iso_out.rxbytes = data_per_desc; -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ -+ //(uint32_t)dma_ad += data_per_desc; -+ dma_ad = (uint32_t)dma_ad + data_per_desc; -+ dma_desc ++; -+ } -+ } -+ -+ for(j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) -+ { -+ -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ sts.b_iso_out.rxbytes = data_per_desc; -+ -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ -+ dma_desc++; -+ //(uint32_t)dma_ad += data_per_desc; -+ dma_ad = (uint32_t)dma_ad + data_per_desc; -+ } -+ -+ sts.b_iso_out.ioc = 1; -+ sts.b_iso_out.l = dwc_ep->proc_buf_num; -+ -+ data_per_desc = ((j + 1) * dwc_ep->maxpacket > dwc_ep->data_per_frame) ? -+ dwc_ep->data_per_frame - j * dwc_ep->maxpacket : dwc_ep->maxpacket; -+ data_per_desc += (data_per_desc % 4) ? (4 - data_per_desc % 4):0; -+ sts.b_iso_out.rxbytes = data_per_desc; -+ -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ } -+ else /** ISO IN EP */ -+ { -+ dma_desc = dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; -+ -+ sts.b_iso_in.bs = BS_HOST_READY; -+ sts.b_iso_in.txsts = 0; -+ sts.b_iso_in.sp = 0; -+ sts.b_iso_in.ioc = 0; -+ sts.b_iso_in.pid = dwc_ep->pkt_per_frm; -+ sts.b_iso_in.framenum = dwc_ep->next_frame; -+ sts.b_iso_in.txbytes = dwc_ep->data_per_frame; -+ sts.b_iso_in.l = 0; -+ -+ for(i = 0; i < dwc_ep->desc_cnt - 1; i++) -+ { -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ -+ sts.b_iso_in.framenum += dwc_ep->bInterval; -+ //(uint32_t)dma_ad += dwc_ep->data_per_frame; -+ dma_ad = (uint32_t)dma_ad + dwc_ep->data_per_frame; -+ dma_desc ++; -+ } -+ -+ sts.b_iso_in.ioc = 1; -+ sts.b_iso_in.l = dwc_ep->proc_buf_num; -+ -+ writel((uint32_t)dma_ad, &dma_desc->buf); -+ writel(sts.d32, &dma_desc->status); -+ -+ dwc_ep->next_frame = sts.b_iso_in.framenum + dwc_ep->bInterval * 1; -+ } -+ dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; -+} -+ -+ -+/** -+ * This function is to handle Iso EP transfer complete interrupt -+ * in case Iso out packet was dropped -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param dwc_ep The EP for wihich transfer complete was asserted -+ * -+ */ -+static uint32_t handle_iso_out_pkt_dropped(dwc_otg_core_if_t *core_if, dwc_ep_t *dwc_ep) -+{ -+ uint32_t dma_addr; -+ uint32_t drp_pkt; -+ uint32_t drp_pkt_cnt; -+ deptsiz_data_t deptsiz = { .d32 = 0 }; -+ depctl_data_t depctl = { .d32 = 0 }; -+ int i; -+ -+ deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doeptsiz); -+ -+ drp_pkt = dwc_ep->pkt_cnt - deptsiz.b.pktcnt; -+ drp_pkt_cnt = dwc_ep->pkt_per_frm - (drp_pkt % dwc_ep->pkt_per_frm); -+ -+ /* Setting dropped packets status */ -+ for(i = 0; i < drp_pkt_cnt; ++i) { -+ dwc_ep->pkt_info[drp_pkt].status = -ENODATA; -+ drp_pkt ++; -+ deptsiz.b.pktcnt--; -+ } -+ -+ -+ if(deptsiz.b.pktcnt > 0) { -+ deptsiz.b.xfersize = dwc_ep->xfer_len - (dwc_ep->pkt_cnt - deptsiz.b.pktcnt) * dwc_ep->maxpacket; -+ } else { -+ deptsiz.b.xfersize = 0; -+ deptsiz.b.pktcnt = 0; -+ } -+ -+ dwc_write_reg32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doeptsiz, deptsiz.d32); -+ -+ if(deptsiz.b.pktcnt > 0) { -+ if(dwc_ep->proc_buf_num) { -+ dma_addr = dwc_ep->dma_addr1 + dwc_ep->xfer_len - deptsiz.b.xfersize; -+ } else { -+ dma_addr = dwc_ep->dma_addr0 + dwc_ep->xfer_len - deptsiz.b.xfersize;; -+ } -+ -+ VERIFY_PCD_DMA_ADDR(dma_addr); -+ dwc_write_reg32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doepdma, dma_addr); -+ -+ /** Re-enable endpoint, clear nak */ -+ depctl.d32 = 0; -+ depctl.b.epena = 1; -+ depctl.b.cnak = 1; -+ -+ dwc_modify_reg32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl, -+ depctl.d32,depctl.d32); -+ return 0; -+ } else { -+ return 1; -+ } -+} -+ -+/** -+ * This function sets iso packets information(PTI mode) -+ * -+ * @param core_if Programming view of DWC_otg controller. -+ * @param ep The EP to start the transfer on. -+ * -+ */ -+static uint32_t set_iso_pkts_info(dwc_otg_core_if_t *core_if, dwc_ep_t *ep) -+{ -+ int i, j; -+ dma_addr_t dma_ad; -+ iso_pkt_info_t *packet_info = ep->pkt_info; -+ uint32_t offset; -+ uint32_t frame_data; -+ deptsiz_data_t deptsiz; -+ -+ if(ep->proc_buf_num == 0) { -+ /** Buffer 0 descriptors setup */ -+ dma_ad = ep->dma_addr0; -+ } -+ else { -+ /** Buffer 1 descriptors setup */ -+ dma_ad = ep->dma_addr1; -+ } -+ -+ if(ep->is_in) { -+ deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz); -+ } else { -+ deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->out_ep_regs[ep->num]->doeptsiz); -+ } -+ -+ if(!deptsiz.b.xfersize) { -+ offset = 0; -+ for(i = 0; i < ep->pkt_cnt; i += ep->pkt_per_frm) -+ { -+ frame_data = ep->data_per_frame; -+ for(j = 0; j < ep->pkt_per_frm; ++j) { -+ -+ /* Packet status - is not set as initially -+ * it is set to 0 and if packet was sent -+ successfully, status field will remain 0*/ -+ -+ /* Bytes has been transfered */ -+ packet_info->length = (ep->maxpacket < frame_data) ? -+ ep->maxpacket : frame_data; -+ -+ /* Received packet offset */ -+ packet_info->offset = offset; -+ offset += packet_info->length; -+ frame_data -= packet_info->length; -+ -+ packet_info ++; -+ } -+ } -+ return 1; -+ } else { -+ /* This is a workaround for in case of Transfer Complete with -+ * PktDrpSts interrupts merging - in this case Transfer complete -+ * interrupt for Isoc Out Endpoint is asserted without PktDrpSts -+ * set and with DOEPTSIZ register non zero. Investigations showed, -+ * that this happens when Out packet is dropped, but because of -+ * interrupts merging during first interrupt handling PktDrpSts -+ * bit is cleared and for next merged interrupts it is not reset. -+ * In this case SW hadles the interrupt as if PktDrpSts bit is set. -+ */ -+ if(ep->is_in) { -+ return 1; -+ } else { -+ return handle_iso_out_pkt_dropped(core_if, ep); -+ } -+ } -+} -+ -+/** -+ * This function is to handle Iso EP transfer complete interrupt -+ * -+ * @param ep The EP for which transfer complete was asserted -+ * -+ */ -+static void complete_iso_ep(dwc_otg_pcd_ep_t *ep) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd); -+ dwc_ep_t *dwc_ep = &ep->dwc_ep; -+ uint8_t is_last = 0; -+ -+ if(core_if->dma_enable) { -+ if(core_if->dma_desc_enable) { -+ set_ddma_iso_pkts_info(core_if, dwc_ep); -+ reinit_ddma_iso_xfer(core_if, dwc_ep); -+ is_last = 1; -+ } else { -+ if(core_if->pti_enh_enable) { -+ if(set_iso_pkts_info(core_if, dwc_ep)) { -+ dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; -+ dwc_otg_iso_ep_start_buf_transfer(core_if, dwc_ep); -+ is_last = 1; -+ } -+ } else { -+ set_current_pkt_info(core_if, dwc_ep); -+ if(dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { -+ is_last = 1; -+ dwc_ep->cur_pkt = 0; -+ dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; -+ if(dwc_ep->proc_buf_num) { -+ dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff1; -+ dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr1; -+ } else { -+ dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff0; -+ dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr0; -+ } -+ } -+ dwc_otg_iso_ep_start_frm_transfer(core_if, dwc_ep); -+ } -+ } -+ } else { -+ set_current_pkt_info(core_if, dwc_ep); -+ if(dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { -+ is_last = 1; -+ dwc_ep->cur_pkt = 0; -+ dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; -+ if(dwc_ep->proc_buf_num) { -+ dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff1; -+ dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr1; -+ } else { -+ dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff0; -+ dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr0; -+ } -+ } -+ dwc_otg_iso_ep_start_frm_transfer(core_if, dwc_ep); -+ } -+ if(is_last) -+ dwc_otg_iso_buffer_done(ep, ep->iso_req); -+} -+ -+#endif //DWC_EN_ISOC -+ -+ -+/** -+ * This function handles EP0 Control transfers. -+ * -+ * The state of the control tranfers are tracked in -+ * <code>ep0state</code>. -+ */ -+static void handle_ep0(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; -+ desc_sts_data_t desc_sts; -+ deptsiz0_data_t deptsiz; -+ uint32_t byte_count; -+ -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCDV, "%s()\n", __func__); -+ print_ep0_state(pcd); -+#endif -+ -+ switch (pcd->ep0state) { -+ case EP0_DISCONNECT: -+ break; -+ -+ case EP0_IDLE: -+ pcd->request_config = 0; -+ -+ pcd_setup(pcd); -+ break; -+ -+ case EP0_IN_DATA_PHASE: -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCD, "DATA_IN EP%d-%s: type=%d, mps=%d\n", -+ ep0->dwc_ep.num, (ep0->dwc_ep.is_in ?"IN":"OUT"), -+ ep0->dwc_ep.type, ep0->dwc_ep.maxpacket); -+#endif -+ -+ if (core_if->dma_enable != 0) { -+ /* -+ * For EP0 we can only program 1 packet at a time so we -+ * need to do the make calculations after each complete. -+ * Call write_packet to make the calculations, as in -+ * slave mode, and use those values to determine if we -+ * can complete. -+ */ -+ if(core_if->dma_desc_enable == 0) { -+ deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->in_ep_regs[0]->dieptsiz); -+ byte_count = ep0->dwc_ep.xfer_len - deptsiz.b.xfersize; -+ } -+ else { -+ desc_sts.d32 = readl(core_if->dev_if->in_desc_addr); -+ byte_count = ep0->dwc_ep.xfer_len - desc_sts.b.bytes; -+ } -+ -+ ep0->dwc_ep.xfer_count += byte_count; -+ ep0->dwc_ep.xfer_buff += byte_count; -+ ep0->dwc_ep.dma_addr += byte_count; -+ } -+ if (ep0->dwc_ep.xfer_count < ep0->dwc_ep.total_len) { -+ dwc_otg_ep0_continue_transfer (GET_CORE_IF(pcd), &ep0->dwc_ep); -+ DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n"); -+ } -+ else if(ep0->dwc_ep.sent_zlp) { -+ dwc_otg_ep0_continue_transfer (GET_CORE_IF(pcd), &ep0->dwc_ep); -+ ep0->dwc_ep.sent_zlp = 0; -+ DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n"); -+ } -+ else { -+ ep0_complete_request(ep0); -+ DWC_DEBUGPL(DBG_PCD, "COMPLETE TRANSFER\n"); -+ } -+ break; -+ case EP0_OUT_DATA_PHASE: -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCD, "DATA_OUT EP%d-%s: type=%d, mps=%d\n", -+ ep0->dwc_ep.num, (ep0->dwc_ep.is_in ?"IN":"OUT"), -+ ep0->dwc_ep.type, ep0->dwc_ep.maxpacket); -+#endif -+ if (core_if->dma_enable != 0) { -+ if(core_if->dma_desc_enable == 0) { -+ deptsiz.d32 = dwc_read_reg32(&core_if->dev_if->out_ep_regs[0]->doeptsiz); -+ byte_count = ep0->dwc_ep.maxpacket - deptsiz.b.xfersize; -+ -+ //todo: invalidate cache & aligned buf patch on completion -+ dma_sync_single_for_device(NULL,ep0->dwc_ep.dma_addr,byte_count,DMA_FROM_DEVICE); -+ aligned_buf_patch_on_buf_dma_oep_completion(ep0,byte_count); -+ } -+ else { -+ desc_sts.d32 = readl(core_if->dev_if->out_desc_addr); -+ byte_count = ep0->dwc_ep.maxpacket - desc_sts.b.bytes; -+ -+ //todo: invalidate cache & aligned buf patch on completion -+ // -+ -+ } -+ ep0->dwc_ep.xfer_count += byte_count; -+ ep0->dwc_ep.xfer_buff += byte_count; -+ ep0->dwc_ep.dma_addr += byte_count; -+ } -+ if (ep0->dwc_ep.xfer_count < ep0->dwc_ep.total_len) { -+ dwc_otg_ep0_continue_transfer (GET_CORE_IF(pcd), &ep0->dwc_ep); -+ DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n"); -+ } -+ else if(ep0->dwc_ep.sent_zlp) { -+ dwc_otg_ep0_continue_transfer (GET_CORE_IF(pcd), &ep0->dwc_ep); -+ ep0->dwc_ep.sent_zlp = 0; -+ DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n"); -+ } -+ else { -+ ep0_complete_request(ep0); -+ DWC_DEBUGPL(DBG_PCD, "COMPLETE TRANSFER\n"); -+ } -+ break; -+ -+ case EP0_IN_STATUS_PHASE: -+ case EP0_OUT_STATUS_PHASE: -+ DWC_DEBUGPL(DBG_PCD, "CASE: EP0_STATUS\n"); -+ ep0_complete_request(ep0); -+ pcd->ep0state = EP0_IDLE; -+ ep0->stopped = 1; -+ ep0->dwc_ep.is_in = 0; /* OUT for next SETUP */ -+ -+ /* Prepare for more SETUP Packets */ -+ if(core_if->dma_enable) { -+ ep0_out_start(core_if, pcd); -+ } -+ break; -+ -+ case EP0_STALL: -+ DWC_ERROR("EP0 STALLed, should not get here pcd_setup()\n"); -+ break; -+ } -+#ifdef DEBUG_EP0 -+ print_ep0_state(pcd); -+#endif -+} -+ -+ -+/** -+ * Restart transfer -+ */ -+static void restart_transfer(dwc_otg_pcd_t *pcd, const uint32_t epnum) -+{ -+ dwc_otg_core_if_t *core_if; -+ dwc_otg_dev_if_t *dev_if; -+ deptsiz_data_t dieptsiz = {.d32=0}; -+ dwc_otg_pcd_ep_t *ep; -+ -+ ep = get_in_ep(pcd, epnum); -+ -+#ifdef DWC_EN_ISOC -+ if(ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) { -+ return; -+ } -+#endif /* DWC_EN_ISOC */ -+ -+ core_if = GET_CORE_IF(pcd); -+ dev_if = core_if->dev_if; -+ -+ dieptsiz.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->dieptsiz); -+ -+ DWC_DEBUGPL(DBG_PCD,"xfer_buff=%p xfer_count=%0x xfer_len=%0x" -+ " stopped=%d\n", ep->dwc_ep.xfer_buff, -+ ep->dwc_ep.xfer_count, ep->dwc_ep.xfer_len , -+ ep->stopped); -+ /* -+ * If xfersize is 0 and pktcnt in not 0, resend the last packet. -+ */ -+ if (dieptsiz.b.pktcnt && dieptsiz.b.xfersize == 0 && -+ ep->dwc_ep.start_xfer_buff != 0) { -+ if (ep->dwc_ep.total_len <= ep->dwc_ep.maxpacket) { -+ ep->dwc_ep.xfer_count = 0; -+ ep->dwc_ep.xfer_buff = ep->dwc_ep.start_xfer_buff; -+ ep->dwc_ep.xfer_len = ep->dwc_ep.xfer_count; -+ } -+ else { -+ ep->dwc_ep.xfer_count -= ep->dwc_ep.maxpacket; -+ /* convert packet size to dwords. */ -+ ep->dwc_ep.xfer_buff -= ep->dwc_ep.maxpacket; -+ ep->dwc_ep.xfer_len = ep->dwc_ep.xfer_count; -+ } -+ ep->stopped = 0; -+ DWC_DEBUGPL(DBG_PCD,"xfer_buff=%p xfer_count=%0x " -+ "xfer_len=%0x stopped=%d\n", -+ ep->dwc_ep.xfer_buff, -+ ep->dwc_ep.xfer_count, ep->dwc_ep.xfer_len , -+ ep->stopped -+ ); -+ if (epnum == 0) { -+ dwc_otg_ep0_start_transfer(core_if, &ep->dwc_ep); -+ } -+ else { -+ dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); -+ } -+ } -+} -+ -+ -+/** -+ * handle the IN EP disable interrupt. -+ */ -+static inline void handle_in_ep_disable_intr(dwc_otg_pcd_t *pcd, -+ const uint32_t epnum) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ deptsiz_data_t dieptsiz = {.d32=0}; -+ dctl_data_t dctl = {.d32=0}; -+ dwc_otg_pcd_ep_t *ep; -+ dwc_ep_t *dwc_ep; -+ -+ ep = get_in_ep(pcd, epnum); -+ dwc_ep = &ep->dwc_ep; -+ -+ if(dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { -+ dwc_otg_flush_tx_fifo(core_if, dwc_ep->tx_fifo_num); -+ return; -+ } -+ -+ DWC_DEBUGPL(DBG_PCD,"diepctl%d=%0x\n", epnum, -+ dwc_read_reg32(&dev_if->in_ep_regs[epnum]->diepctl)); -+ dieptsiz.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->dieptsiz); -+ -+ DWC_DEBUGPL(DBG_ANY, "pktcnt=%d size=%d\n", -+ dieptsiz.b.pktcnt, -+ dieptsiz.b.xfersize); -+ -+ if (ep->stopped) { -+ /* Flush the Tx FIFO */ -+ dwc_otg_flush_tx_fifo(core_if, dwc_ep->tx_fifo_num); -+ /* Clear the Global IN NP NAK */ -+ dctl.d32 = 0; -+ dctl.b.cgnpinnak = 1; -+ dwc_modify_reg32(&dev_if->dev_global_regs->dctl, -+ dctl.d32, 0); -+ /* Restart the transaction */ -+ if (dieptsiz.b.pktcnt != 0 || -+ dieptsiz.b.xfersize != 0) { -+ restart_transfer(pcd, epnum); -+ } -+ } -+ else { -+ /* Restart the transaction */ -+ if (dieptsiz.b.pktcnt != 0 || -+ dieptsiz.b.xfersize != 0) { -+ restart_transfer(pcd, epnum); -+ } -+ DWC_DEBUGPL(DBG_ANY, "STOPPED!!!\n"); -+ } -+} -+ -+/** -+ * Handler for the IN EP timeout handshake interrupt. -+ */ -+static inline void handle_in_ep_timeout_intr(dwc_otg_pcd_t *pcd, -+ const uint32_t epnum) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ -+#ifdef DEBUG -+ deptsiz_data_t dieptsiz = {.d32=0}; -+ uint32_t num = 0; -+#endif -+ dctl_data_t dctl = {.d32=0}; -+ dwc_otg_pcd_ep_t *ep; -+ -+ gintmsk_data_t intr_mask = {.d32 = 0}; -+ -+ ep = get_in_ep(pcd, epnum); -+ -+ /* Disable the NP Tx Fifo Empty Interrrupt */ -+ if (!core_if->dma_enable) { -+ intr_mask.b.nptxfempty = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gintmsk, intr_mask.d32, 0); -+ } -+ /** @todo NGS Check EP type. -+ * Implement for Periodic EPs */ -+ /* -+ * Non-periodic EP -+ */ -+ /* Enable the Global IN NAK Effective Interrupt */ -+ intr_mask.b.ginnakeff = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gintmsk, -+ 0, intr_mask.d32); -+ -+ /* Set Global IN NAK */ -+ dctl.b.sgnpinnak = 1; -+ dwc_modify_reg32(&dev_if->dev_global_regs->dctl, -+ dctl.d32, dctl.d32); -+ -+ ep->stopped = 1; -+ -+#ifdef DEBUG -+ dieptsiz.d32 = dwc_read_reg32(&dev_if->in_ep_regs[num]->dieptsiz); -+ DWC_DEBUGPL(DBG_ANY, "pktcnt=%d size=%d\n", -+ dieptsiz.b.pktcnt, -+ dieptsiz.b.xfersize); -+#endif -+ -+#ifdef DISABLE_PERIODIC_EP -+ /* -+ * Set the NAK bit for this EP to -+ * start the disable process. -+ */ -+ diepctl.d32 = 0; -+ diepctl.b.snak = 1; -+ dwc_modify_reg32(&dev_if->in_ep_regs[num]->diepctl, diepctl.d32, diepctl.d32); -+ ep->disabling = 1; -+ ep->stopped = 1; -+#endif -+} -+ -+/** -+ * Handler for the IN EP NAK interrupt. -+ */ -+static inline int32_t handle_in_ep_nak_intr(dwc_otg_pcd_t *pcd, -+ const uint32_t epnum) -+{ -+ /** @todo implement ISR */ -+ dwc_otg_core_if_t* core_if; -+ diepmsk_data_t intr_mask = { .d32 = 0}; -+ -+ DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "IN EP NAK"); -+ core_if = GET_CORE_IF(pcd); -+ intr_mask.b.nak = 1; -+ -+ if(core_if->multiproc_int_enable) { -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->diepeachintmsk[epnum], -+ intr_mask.d32, 0); -+ } else { -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->diepmsk, -+ intr_mask.d32, 0); -+ } -+ -+ return 1; -+} -+ -+/** -+ * Handler for the OUT EP Babble interrupt. -+ */ -+static inline int32_t handle_out_ep_babble_intr(dwc_otg_pcd_t *pcd, -+ const uint32_t epnum) -+{ -+ /** @todo implement ISR */ -+ dwc_otg_core_if_t* core_if; -+ doepmsk_data_t intr_mask = { .d32 = 0}; -+ -+ DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "OUT EP Babble"); -+ core_if = GET_CORE_IF(pcd); -+ intr_mask.b.babble = 1; -+ -+ if(core_if->multiproc_int_enable) { -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepeachintmsk[epnum], -+ intr_mask.d32, 0); -+ } else { -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepmsk, -+ intr_mask.d32, 0); -+ } -+ -+ return 1; -+} -+ -+/** -+ * Handler for the OUT EP NAK interrupt. -+ */ -+static inline int32_t handle_out_ep_nak_intr(dwc_otg_pcd_t *pcd, -+ const uint32_t epnum) -+{ -+ /** @todo implement ISR */ -+ dwc_otg_core_if_t* core_if; -+ doepmsk_data_t intr_mask = { .d32 = 0}; -+ -+ DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "OUT EP NAK"); -+ core_if = GET_CORE_IF(pcd); -+ intr_mask.b.nak = 1; -+ -+ if(core_if->multiproc_int_enable) { -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepeachintmsk[epnum], -+ intr_mask.d32, 0); -+ } else { -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepmsk, -+ intr_mask.d32, 0); -+ } -+ -+ return 1; -+} -+ -+/** -+ * Handler for the OUT EP NYET interrupt. -+ */ -+static inline int32_t handle_out_ep_nyet_intr(dwc_otg_pcd_t *pcd, -+ const uint32_t epnum) -+{ -+ /** @todo implement ISR */ -+ dwc_otg_core_if_t* core_if; -+ doepmsk_data_t intr_mask = { .d32 = 0}; -+ -+ DWC_PRINT("INTERRUPT Handler not implemented for %s\n", "OUT EP NYET"); -+ core_if = GET_CORE_IF(pcd); -+ intr_mask.b.nyet = 1; -+ -+ if(core_if->multiproc_int_enable) { -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepeachintmsk[epnum], -+ intr_mask.d32, 0); -+ } else { -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->doepmsk, -+ intr_mask.d32, 0); -+ } -+ -+ return 1; -+} -+ -+/** -+ * This interrupt indicates that an IN EP has a pending Interrupt. -+ * The sequence for handling the IN EP interrupt is shown below: -+ * -# Read the Device All Endpoint Interrupt register -+ * -# Repeat the following for each IN EP interrupt bit set (from -+ * LSB to MSB). -+ * -# Read the Device Endpoint Interrupt (DIEPINTn) register -+ * -# If "Transfer Complete" call the request complete function -+ * -# If "Endpoint Disabled" complete the EP disable procedure. -+ * -# If "AHB Error Interrupt" log error -+ * -# If "Time-out Handshake" log error -+ * -# If "IN Token Received when TxFIFO Empty" write packet to Tx -+ * FIFO. -+ * -# If "IN Token EP Mismatch" (disable, this is handled by EP -+ * Mismatch Interrupt) -+ */ -+static int32_t dwc_otg_pcd_handle_in_ep_intr(dwc_otg_pcd_t *pcd) -+{ -+#define CLEAR_IN_EP_INTR(__core_if,__epnum,__intr) \ -+do { \ -+ diepint_data_t diepint = {.d32=0}; \ -+ diepint.b.__intr = 1; \ -+ dwc_write_reg32(&__core_if->dev_if->in_ep_regs[__epnum]->diepint, \ -+ diepint.d32); \ -+} while (0) -+ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ diepint_data_t diepint = {.d32=0}; -+ dctl_data_t dctl = {.d32=0}; -+ depctl_data_t depctl = {.d32=0}; -+ uint32_t ep_intr; -+ uint32_t epnum = 0; -+ dwc_otg_pcd_ep_t *ep; -+ dwc_ep_t *dwc_ep; -+ gintmsk_data_t intr_mask = {.d32 = 0}; -+ -+ DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, pcd); -+ -+ /* Read in the device interrupt bits */ -+ ep_intr = dwc_otg_read_dev_all_in_ep_intr(core_if); -+ -+ /* Service the Device IN interrupts for each endpoint */ -+ while(ep_intr) { -+ if (ep_intr&0x1) { -+ uint32_t empty_msk; -+ /* Get EP pointer */ -+ ep = get_in_ep(pcd, epnum); -+ dwc_ep = &ep->dwc_ep; -+ -+ depctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->diepctl); -+ empty_msk = dwc_read_reg32(&dev_if->dev_global_regs->dtknqr4_fifoemptymsk); -+ -+ DWC_DEBUGPL(DBG_PCDV, -+ "IN EP INTERRUPT - %d\nepmty_msk - %8x diepctl - %8x\n", -+ epnum, -+ empty_msk, -+ depctl.d32); -+ -+ DWC_DEBUGPL(DBG_PCD, -+ "EP%d-%s: type=%d, mps=%d\n", -+ dwc_ep->num, (dwc_ep->is_in ?"IN":"OUT"), -+ dwc_ep->type, dwc_ep->maxpacket); -+ -+ diepint.d32 = dwc_otg_read_dev_in_ep_intr(core_if, dwc_ep); -+ -+ DWC_DEBUGPL(DBG_PCDV, "EP %d Interrupt Register - 0x%x\n", epnum, diepint.d32); -+ /* Transfer complete */ -+ if (diepint.b.xfercompl) { -+ /* Disable the NP Tx FIFO Empty -+ * Interrrupt */ -+ if(core_if->en_multiple_tx_fifo == 0) { -+ intr_mask.b.nptxfempty = 1; -+ dwc_modify_reg32(&core_if->core_global_regs->gintmsk, intr_mask.d32, 0); -+ } -+ else { -+ /* Disable the Tx FIFO Empty Interrupt for this EP */ -+ uint32_t fifoemptymsk = 0x1 << dwc_ep->num; -+ dwc_modify_reg32(&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, -+ fifoemptymsk, 0); -+ } -+ /* Clear the bit in DIEPINTn for this interrupt */ -+ CLEAR_IN_EP_INTR(core_if,epnum,xfercompl); -+ -+ /* Complete the transfer */ -+ if (epnum == 0) { -+ handle_ep0(pcd); -+ } -+#ifdef DWC_EN_ISOC -+ else if(dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { -+ if(!ep->stopped) -+ complete_iso_ep(ep); -+ } -+#endif //DWC_EN_ISOC -+ else { -+ -+ complete_ep(ep); -+ } -+ } -+ /* Endpoint disable */ -+ if (diepint.b.epdisabled) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d IN disabled\n", epnum); -+ handle_in_ep_disable_intr(pcd, epnum); -+ -+ /* Clear the bit in DIEPINTn for this interrupt */ -+ CLEAR_IN_EP_INTR(core_if,epnum,epdisabled); -+ } -+ /* AHB Error */ -+ if (diepint.b.ahberr) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d IN AHB Error\n", epnum); -+ /* Clear the bit in DIEPINTn for this interrupt */ -+ CLEAR_IN_EP_INTR(core_if,epnum,ahberr); -+ } -+ /* TimeOUT Handshake (non-ISOC IN EPs) */ -+ if (diepint.b.timeout) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d IN Time-out\n", epnum); -+ handle_in_ep_timeout_intr(pcd, epnum); -+ -+ CLEAR_IN_EP_INTR(core_if,epnum,timeout); -+ } -+ /** IN Token received with TxF Empty */ -+ if (diepint.b.intktxfemp) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d IN TKN TxFifo Empty\n", -+ epnum); -+ if (!ep->stopped && epnum != 0) { -+ -+ diepmsk_data_t diepmsk = { .d32 = 0}; -+ diepmsk.b.intktxfemp = 1; -+ -+ if(core_if->multiproc_int_enable) { -+ dwc_modify_reg32(&dev_if->dev_global_regs->diepeachintmsk[epnum], -+ diepmsk.d32, 0); -+ } else { -+ dwc_modify_reg32(&dev_if->dev_global_regs->diepmsk, diepmsk.d32, 0); -+ } -+ start_next_request(ep); -+ } -+ else if(core_if->dma_desc_enable && epnum == 0 && -+ pcd->ep0state == EP0_OUT_STATUS_PHASE) { -+ // EP0 IN set STALL -+ depctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[epnum]->diepctl); -+ -+ /* set the disable and stall bits */ -+ if (depctl.b.epena) { -+ depctl.b.epdis = 1; -+ } -+ depctl.b.stall = 1; -+ dwc_write_reg32(&dev_if->in_ep_regs[epnum]->diepctl, depctl.d32); -+ } -+ CLEAR_IN_EP_INTR(core_if,epnum,intktxfemp); -+ } -+ /** IN Token Received with EP mismatch */ -+ if (diepint.b.intknepmis) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d IN TKN EP Mismatch\n", epnum); -+ CLEAR_IN_EP_INTR(core_if,epnum,intknepmis); -+ } -+ /** IN Endpoint NAK Effective */ -+ if (diepint.b.inepnakeff) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d IN EP NAK Effective\n", epnum); -+ /* Periodic EP */ -+ if (ep->disabling) { -+ depctl.d32 = 0; -+ depctl.b.snak = 1; -+ depctl.b.epdis = 1; -+ dwc_modify_reg32(&dev_if->in_ep_regs[epnum]->diepctl, depctl.d32, depctl.d32); -+ } -+ CLEAR_IN_EP_INTR(core_if,epnum,inepnakeff); -+ -+ } -+ -+ /** IN EP Tx FIFO Empty Intr */ -+ if (diepint.b.emptyintr) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d Tx FIFO Empty Intr \n", epnum); -+ write_empty_tx_fifo(pcd, epnum); -+ -+ CLEAR_IN_EP_INTR(core_if,epnum,emptyintr); -+ } -+ -+ /** IN EP BNA Intr */ -+ if (diepint.b.bna) { -+ CLEAR_IN_EP_INTR(core_if,epnum,bna); -+ if(core_if->dma_desc_enable) { -+#ifdef DWC_EN_ISOC -+ if(dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { -+ /* -+ * This checking is performed to prevent first "false" BNA -+ * handling occuring right after reconnect -+ */ -+ if(dwc_ep->next_frame != 0xffffffff) -+ dwc_otg_pcd_handle_iso_bna(ep); -+ } -+ else -+#endif //DWC_EN_ISOC -+ { -+ dctl.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dctl); -+ -+ /* If Global Continue on BNA is disabled - disable EP */ -+ if(!dctl.b.gcontbna) { -+ depctl.d32 = 0; -+ depctl.b.snak = 1; -+ depctl.b.epdis = 1; -+ dwc_modify_reg32(&dev_if->in_ep_regs[epnum]->diepctl, depctl.d32, depctl.d32); -+ } else { -+ start_next_request(ep); -+ } -+ } -+ } -+ } -+ /* NAK Interrutp */ -+ if (diepint.b.nak) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d IN NAK Interrupt\n", epnum); -+ handle_in_ep_nak_intr(pcd, epnum); -+ -+ CLEAR_IN_EP_INTR(core_if,epnum,nak); -+ } -+ } -+ epnum++; -+ ep_intr >>=1; -+ } -+ -+ return 1; -+#undef CLEAR_IN_EP_INTR -+} -+ -+/** -+ * This interrupt indicates that an OUT EP has a pending Interrupt. -+ * The sequence for handling the OUT EP interrupt is shown below: -+ * -# Read the Device All Endpoint Interrupt register -+ * -# Repeat the following for each OUT EP interrupt bit set (from -+ * LSB to MSB). -+ * -# Read the Device Endpoint Interrupt (DOEPINTn) register -+ * -# If "Transfer Complete" call the request complete function -+ * -# If "Endpoint Disabled" complete the EP disable procedure. -+ * -# If "AHB Error Interrupt" log error -+ * -# If "Setup Phase Done" process Setup Packet (See Standard USB -+ * Command Processing) -+ */ -+static int32_t dwc_otg_pcd_handle_out_ep_intr(dwc_otg_pcd_t *pcd) -+{ -+#define CLEAR_OUT_EP_INTR(__core_if,__epnum,__intr) \ -+do { \ -+ doepint_data_t doepint = {.d32=0}; \ -+ doepint.b.__intr = 1; \ -+ dwc_write_reg32(&__core_if->dev_if->out_ep_regs[__epnum]->doepint, \ -+ doepint.d32); \ -+} while (0) -+ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+ dwc_otg_dev_if_t *dev_if = core_if->dev_if; -+ uint32_t ep_intr; -+ doepint_data_t doepint = {.d32=0}; -+ dctl_data_t dctl = {.d32=0}; -+ depctl_data_t doepctl = {.d32=0}; -+ uint32_t epnum = 0; -+ dwc_otg_pcd_ep_t *ep; -+ dwc_ep_t *dwc_ep; -+ -+ DWC_DEBUGPL(DBG_PCDV, "%s()\n", __func__); -+ -+ /* Read in the device interrupt bits */ -+ ep_intr = dwc_otg_read_dev_all_out_ep_intr(core_if); -+ -+ while(ep_intr) { -+ if (ep_intr&0x1) { -+ /* Get EP pointer */ -+ ep = get_out_ep(pcd, epnum); -+ dwc_ep = &ep->dwc_ep; -+ -+#ifdef VERBOSE -+ DWC_DEBUGPL(DBG_PCDV, -+ "EP%d-%s: type=%d, mps=%d\n", -+ dwc_ep->num, (dwc_ep->is_in ?"IN":"OUT"), -+ dwc_ep->type, dwc_ep->maxpacket); -+#endif -+ doepint.d32 = dwc_otg_read_dev_out_ep_intr(core_if, dwc_ep); -+ -+ /* Transfer complete */ -+ if (doepint.b.xfercompl) { -+ if (epnum == 0) { -+ /* Clear the bit in DOEPINTn for this interrupt */ -+ CLEAR_OUT_EP_INTR(core_if,epnum,xfercompl); -+ if(core_if->dma_desc_enable == 0 || pcd->ep0state != EP0_IDLE) -+ handle_ep0(pcd); -+#ifdef DWC_EN_ISOC -+ } else if(dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { -+ if (doepint.b.pktdrpsts == 0) { -+ /* Clear the bit in DOEPINTn for this interrupt */ -+ CLEAR_OUT_EP_INTR(core_if,epnum,xfercompl); -+ complete_iso_ep(ep); -+ } else { -+ doepint_data_t doepint = {.d32=0}; -+ doepint.b.xfercompl = 1; -+ doepint.b.pktdrpsts = 1; -+ dwc_write_reg32(&core_if->dev_if->out_ep_regs[epnum]->doepint, -+ doepint.d32); -+ if(handle_iso_out_pkt_dropped(core_if,dwc_ep)) { -+ complete_iso_ep(ep); -+ } -+ } -+#endif //DWC_EN_ISOC -+ } else { -+ /* Clear the bit in DOEPINTn for this interrupt */ -+ CLEAR_OUT_EP_INTR(core_if,epnum,xfercompl); -+ complete_ep(ep); -+ } -+ -+ } -+ -+ /* Endpoint disable */ -+ if (doepint.b.epdisabled) { -+ /* Clear the bit in DOEPINTn for this interrupt */ -+ CLEAR_OUT_EP_INTR(core_if,epnum,epdisabled); -+ } -+ /* AHB Error */ -+ if (doepint.b.ahberr) { -+ DWC_DEBUGPL(DBG_PCD,"EP%d OUT AHB Error\n", epnum); -+ DWC_DEBUGPL(DBG_PCD,"EP DMA REG %d \n", core_if->dev_if->out_ep_regs[epnum]->doepdma); -+ CLEAR_OUT_EP_INTR(core_if,epnum,ahberr); -+ } -+ /* Setup Phase Done (contorl EPs) */ -+ if (doepint.b.setup) { -+#ifdef DEBUG_EP0 -+ DWC_DEBUGPL(DBG_PCD,"EP%d SETUP Done\n", -+ epnum); -+#endif -+ CLEAR_OUT_EP_INTR(core_if,epnum,setup); -+ handle_ep0(pcd); -+ } -+ -+ /** OUT EP BNA Intr */ -+ if (doepint.b.bna) { -+ CLEAR_OUT_EP_INTR(core_if,epnum,bna); -+ if(core_if->dma_desc_enable) { -+#ifdef DWC_EN_ISOC -+ if(dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { -+ /* -+ * This checking is performed to prevent first "false" BNA -+ * handling occuring right after reconnect -+ */ -+ if(dwc_ep->next_frame != 0xffffffff) -+ dwc_otg_pcd_handle_iso_bna(ep); -+ } -+ else -+#endif //DWC_EN_ISOC -+ { -+ dctl.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dctl); -+ -+ /* If Global Continue on BNA is disabled - disable EP*/ -+ if(!dctl.b.gcontbna) { -+ doepctl.d32 = 0; -+ doepctl.b.snak = 1; -+ doepctl.b.epdis = 1; -+ dwc_modify_reg32(&dev_if->out_ep_regs[epnum]->doepctl, doepctl.d32, doepctl.d32); -+ } else { -+ start_next_request(ep); -+ } -+ } -+ } -+ } -+ if (doepint.b.stsphsercvd) { -+ CLEAR_OUT_EP_INTR(core_if,epnum,stsphsercvd); -+ if(core_if->dma_desc_enable) { -+ do_setup_in_status_phase(pcd); -+ } -+ } -+ /* Babble Interrutp */ -+ if (doepint.b.babble) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d OUT Babble\n", epnum); -+ handle_out_ep_babble_intr(pcd, epnum); -+ -+ CLEAR_OUT_EP_INTR(core_if,epnum,babble); -+ } -+ /* NAK Interrutp */ -+ if (doepint.b.nak) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d OUT NAK\n", epnum); -+ handle_out_ep_nak_intr(pcd, epnum); -+ -+ CLEAR_OUT_EP_INTR(core_if,epnum,nak); -+ } -+ /* NYET Interrutp */ -+ if (doepint.b.nyet) { -+ DWC_DEBUGPL(DBG_ANY,"EP%d OUT NYET\n", epnum); -+ handle_out_ep_nyet_intr(pcd, epnum); -+ -+ CLEAR_OUT_EP_INTR(core_if,epnum,nyet); -+ } -+ } -+ -+ epnum++; -+ ep_intr >>=1; -+ } -+ -+ return 1; -+ -+#undef CLEAR_OUT_EP_INTR -+} -+ -+ -+/** -+ * Incomplete ISO IN Transfer Interrupt. -+ * This interrupt indicates one of the following conditions occurred -+ * while transmitting an ISOC transaction. -+ * - Corrupted IN Token for ISOC EP. -+ * - Packet not complete in FIFO. -+ * The follow actions will be taken: -+ * -# Determine the EP -+ * -# Set incomplete flag in dwc_ep structure -+ * -# Disable EP; when "Endpoint Disabled" interrupt is received -+ * Flush FIFO -+ */ -+int32_t dwc_otg_pcd_handle_incomplete_isoc_in_intr(dwc_otg_pcd_t *pcd) -+{ -+ gintsts_data_t gintsts; -+ -+ -+#ifdef DWC_EN_ISOC -+ dwc_otg_dev_if_t *dev_if; -+ deptsiz_data_t deptsiz = { .d32 = 0}; -+ depctl_data_t depctl = { .d32 = 0}; -+ dsts_data_t dsts = { .d32 = 0}; -+ dwc_ep_t *dwc_ep; -+ int i; -+ -+ dev_if = GET_CORE_IF(pcd)->dev_if; -+ -+ for(i = 1; i <= dev_if->num_in_eps; ++i) { -+ dwc_ep = &pcd->in_ep[i].dwc_ep; -+ if(dwc_ep->active && -+ dwc_ep->type == USB_ENDPOINT_XFER_ISOC) -+ { -+ deptsiz.d32 = dwc_read_reg32(&dev_if->in_ep_regs[i]->dieptsiz); -+ depctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[i]->diepctl); -+ -+ if(depctl.b.epdis && deptsiz.d32) { -+ set_current_pkt_info(GET_CORE_IF(pcd), dwc_ep); -+ if(dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { -+ dwc_ep->cur_pkt = 0; -+ dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; -+ -+ if(dwc_ep->proc_buf_num) { -+ dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff1; -+ dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr1; -+ } else { -+ dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff0; -+ dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr0; -+ } -+ } -+ -+ dsts.d32 = dwc_read_reg32(&GET_CORE_IF(pcd)->dev_if->dev_global_regs->dsts); -+ dwc_ep->next_frame = dsts.b.soffn; -+ -+ dwc_otg_iso_ep_start_frm_transfer(GET_CORE_IF(pcd), dwc_ep); -+ } -+ } -+ } -+ -+#else -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ DWC_PRINT("INTERRUPT Handler not implemented for %s\n", -+ "IN ISOC Incomplete"); -+ -+ intr_mask.b.incomplisoin = 1; -+ dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, -+ intr_mask.d32, 0); -+#endif //DWC_EN_ISOC -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.incomplisoin = 1; -+ dwc_write_reg32 (&GET_CORE_IF(pcd)->core_global_regs->gintsts, -+ gintsts.d32); -+ -+ return 1; -+} -+ -+/** -+ * Incomplete ISO OUT Transfer Interrupt. -+ * -+ * This interrupt indicates that the core has dropped an ISO OUT -+ * packet. The following conditions can be the cause: -+ * - FIFO Full, the entire packet would not fit in the FIFO. -+ * - CRC Error -+ * - Corrupted Token -+ * The follow actions will be taken: -+ * -# Determine the EP -+ * -# Set incomplete flag in dwc_ep structure -+ * -# Read any data from the FIFO -+ * -# Disable EP. when "Endpoint Disabled" interrupt is received -+ * re-enable EP. -+ */ -+int32_t dwc_otg_pcd_handle_incomplete_isoc_out_intr(dwc_otg_pcd_t *pcd) -+{ -+ /* @todo implement ISR */ -+ gintsts_data_t gintsts; -+ -+#ifdef DWC_EN_ISOC -+ dwc_otg_dev_if_t *dev_if; -+ deptsiz_data_t deptsiz = { .d32 = 0}; -+ depctl_data_t depctl = { .d32 = 0}; -+ dsts_data_t dsts = { .d32 = 0}; -+ dwc_ep_t *dwc_ep; -+ int i; -+ -+ dev_if = GET_CORE_IF(pcd)->dev_if; -+ -+ for(i = 1; i <= dev_if->num_out_eps; ++i) { -+ dwc_ep = &pcd->in_ep[i].dwc_ep; -+ if(pcd->out_ep[i].dwc_ep.active && -+ pcd->out_ep[i].dwc_ep.type == USB_ENDPOINT_XFER_ISOC) -+ { -+ deptsiz.d32 = dwc_read_reg32(&dev_if->out_ep_regs[i]->doeptsiz); -+ depctl.d32 = dwc_read_reg32(&dev_if->out_ep_regs[i]->doepctl); -+ -+ if(depctl.b.epdis && deptsiz.d32) { -+ set_current_pkt_info(GET_CORE_IF(pcd), &pcd->out_ep[i].dwc_ep); -+ if(dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { -+ dwc_ep->cur_pkt = 0; -+ dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; -+ -+ if(dwc_ep->proc_buf_num) { -+ dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff1; -+ dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr1; -+ } else { -+ dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff0; -+ dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr0; -+ } -+ } -+ -+ dsts.d32 = dwc_read_reg32(&GET_CORE_IF(pcd)->dev_if->dev_global_regs->dsts); -+ dwc_ep->next_frame = dsts.b.soffn; -+ -+ dwc_otg_iso_ep_start_frm_transfer(GET_CORE_IF(pcd), dwc_ep); -+ } -+ } -+ } -+#else -+ /** @todo implement ISR */ -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ -+ DWC_PRINT("INTERRUPT Handler not implemented for %s\n", -+ "OUT ISOC Incomplete"); -+ -+ intr_mask.b.incomplisoout = 1; -+ dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, -+ intr_mask.d32, 0); -+ -+#endif // DWC_EN_ISOC -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.incomplisoout = 1; -+ dwc_write_reg32 (&GET_CORE_IF(pcd)->core_global_regs->gintsts, -+ gintsts.d32); -+ -+ return 1; -+} -+ -+/** -+ * This function handles the Global IN NAK Effective interrupt. -+ * -+ */ -+int32_t dwc_otg_pcd_handle_in_nak_effective(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if; -+ depctl_data_t diepctl = { .d32 = 0}; -+ depctl_data_t diepctl_rd = { .d32 = 0}; -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ gintsts_data_t gintsts; -+ int i; -+ -+ DWC_DEBUGPL(DBG_PCD, "Global IN NAK Effective\n"); -+ -+ /* Disable all active IN EPs */ -+ diepctl.b.epdis = 1; -+ diepctl.b.snak = 1; -+ -+ for (i=0; i <= dev_if->num_in_eps; i++) -+ { -+ diepctl_rd.d32 = dwc_read_reg32(&dev_if->in_ep_regs[i]->diepctl); -+ if (diepctl_rd.b.epena) { -+ dwc_write_reg32(&dev_if->in_ep_regs[i]->diepctl, -+ diepctl.d32); -+ } -+ } -+ /* Disable the Global IN NAK Effective Interrupt */ -+ intr_mask.b.ginnakeff = 1; -+ dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, -+ intr_mask.d32, 0); -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.ginnakeff = 1; -+ dwc_write_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, -+ gintsts.d32); -+ -+ return 1; -+} -+ -+/** -+ * OUT NAK Effective. -+ * -+ */ -+int32_t dwc_otg_pcd_handle_out_nak_effective(dwc_otg_pcd_t *pcd) -+{ -+ gintmsk_data_t intr_mask = { .d32 = 0}; -+ gintsts_data_t gintsts; -+ -+ DWC_PRINT("INTERRUPT Handler not implemented for %s\n", -+ "Global IN NAK Effective\n"); -+ /* Disable the Global IN NAK Effective Interrupt */ -+ intr_mask.b.goutnakeff = 1; -+ dwc_modify_reg32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, -+ intr_mask.d32, 0); -+ -+ /* Clear interrupt */ -+ gintsts.d32 = 0; -+ gintsts.b.goutnakeff = 1; -+ dwc_write_reg32 (&GET_CORE_IF(pcd)->core_global_regs->gintsts, -+ gintsts.d32); -+ -+ return 1; -+} -+ -+ -+/** -+ * PCD interrupt handler. -+ * -+ * The PCD handles the device interrupts. Many conditions can cause a -+ * device interrupt. When an interrupt occurs, the device interrupt -+ * service routine determines the cause of the interrupt and -+ * dispatches handling to the appropriate function. These interrupt -+ * handling functions are described below. -+ * -+ * All interrupt registers are processed from LSB to MSB. -+ * -+ */ -+int32_t dwc_otg_pcd_handle_intr(dwc_otg_pcd_t *pcd) -+{ -+ dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); -+#ifdef VERBOSE -+ dwc_otg_core_global_regs_t *global_regs = -+ core_if->core_global_regs; -+#endif -+ gintsts_data_t gintr_status; -+ int32_t retval = 0; -+ -+ -+#ifdef VERBOSE -+ DWC_DEBUGPL(DBG_ANY, "%s() gintsts=%08x gintmsk=%08x\n", -+ __func__, -+ dwc_read_reg32(&global_regs->gintsts), -+ dwc_read_reg32(&global_regs->gintmsk)); -+#endif -+ -+ if (dwc_otg_is_device_mode(core_if)) { -+ SPIN_LOCK(&pcd->lock); -+#ifdef VERBOSE -+ DWC_DEBUGPL(DBG_PCDV, "%s() gintsts=%08x gintmsk=%08x\n", -+ __func__, -+ dwc_read_reg32(&global_regs->gintsts), -+ dwc_read_reg32(&global_regs->gintmsk)); -+#endif -+ -+ gintr_status.d32 = dwc_otg_read_core_intr(core_if); -+/* -+ if (!gintr_status.d32) { -+ SPIN_UNLOCK(&pcd->lock); -+ return 0; -+ } -+*/ -+ DWC_DEBUGPL(DBG_PCDV, "%s: gintsts&gintmsk=%08x\n", -+ __func__, gintr_status.d32); -+ -+ if (gintr_status.b.sofintr) { -+ retval |= dwc_otg_pcd_handle_sof_intr(pcd); -+ } -+ if (gintr_status.b.rxstsqlvl) { -+ retval |= dwc_otg_pcd_handle_rx_status_q_level_intr(pcd); -+ } -+ if (gintr_status.b.nptxfempty) { -+ retval |= dwc_otg_pcd_handle_np_tx_fifo_empty_intr(pcd); -+ } -+ if (gintr_status.b.ginnakeff) { -+ retval |= dwc_otg_pcd_handle_in_nak_effective(pcd); -+ } -+ if (gintr_status.b.goutnakeff) { -+ retval |= dwc_otg_pcd_handle_out_nak_effective(pcd); -+ } -+ if (gintr_status.b.i2cintr) { -+ retval |= dwc_otg_pcd_handle_i2c_intr(pcd); -+ } -+ if (gintr_status.b.erlysuspend) { -+ retval |= dwc_otg_pcd_handle_early_suspend_intr(pcd); -+ } -+ if (gintr_status.b.usbreset) { -+ retval |= dwc_otg_pcd_handle_usb_reset_intr(pcd); -+ } -+ if (gintr_status.b.enumdone) { -+ retval |= dwc_otg_pcd_handle_enum_done_intr(pcd); -+ } -+ if (gintr_status.b.isooutdrop) { -+ retval |= dwc_otg_pcd_handle_isoc_out_packet_dropped_intr(pcd); -+ } -+ if (gintr_status.b.eopframe) { -+ retval |= dwc_otg_pcd_handle_end_periodic_frame_intr(pcd); -+ } -+ if (gintr_status.b.epmismatch) { -+ retval |= dwc_otg_pcd_handle_ep_mismatch_intr(core_if); -+ } -+ if (gintr_status.b.inepint) { -+ if(!core_if->multiproc_int_enable) { -+ retval |= dwc_otg_pcd_handle_in_ep_intr(pcd); -+ } -+ } -+ if (gintr_status.b.outepintr) { -+ if(!core_if->multiproc_int_enable) { -+ retval |= dwc_otg_pcd_handle_out_ep_intr(pcd); -+ } -+ } -+ if (gintr_status.b.incomplisoin) { -+ retval |= dwc_otg_pcd_handle_incomplete_isoc_in_intr(pcd); -+ } -+ if (gintr_status.b.incomplisoout) { -+ retval |= dwc_otg_pcd_handle_incomplete_isoc_out_intr(pcd); -+ } -+ -+ /* In MPI mode De vice Endpoints intterrupts are asserted -+ * without setting outepintr and inepint bits set, so these -+ * Interrupt handlers are called without checking these bit-fields -+ */ -+ if(core_if->multiproc_int_enable) { -+ retval |= dwc_otg_pcd_handle_in_ep_intr(pcd); -+ retval |= dwc_otg_pcd_handle_out_ep_intr(pcd); -+ } -+#ifdef VERBOSE -+ DWC_DEBUGPL(DBG_PCDV, "%s() gintsts=%0x\n", __func__, -+ dwc_read_reg32(&global_regs->gintsts)); -+#endif -+ SPIN_UNLOCK(&pcd->lock); -+ } -+ S3C2410X_CLEAR_EINTPEND(); -+ -+ return retval; -+} -+ -+#endif /* DWC_HOST_ONLY */ ---- /dev/null -+++ b/drivers/usb/dwc/otg_plat.h -@@ -0,0 +1,266 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/platform/dwc_otg_plat.h $ -+ * $Revision: #23 $ -+ * $Date: 2008/07/15 $ -+ * $Change: 1064915 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+ -+#if !defined(__DWC_OTG_PLAT_H__) -+#define __DWC_OTG_PLAT_H__ -+ -+#include <linux/types.h> -+#include <linux/slab.h> -+#include <linux/list.h> -+#include <linux/delay.h> -+#include <asm/io.h> -+ -+/* Changed all readl and writel to __raw_readl, __raw_writel */ -+ -+/** -+ * @file -+ * -+ * This file contains the Platform Specific constants, interfaces -+ * (functions and macros) for Linux. -+ * -+ */ -+//#if !defined(__LINUX_ARM_ARCH__) -+//#error "The contents of this file is Linux specific!!!" -+//#endif -+ -+/** -+ * Reads the content of a register. -+ * -+ * @param reg address of register to read. -+ * @return contents of the register. -+ * -+ -+ * Usage:<br> -+ * <code>uint32_t dev_ctl = dwc_read_reg32(&dev_regs->dctl);</code> -+ */ -+static __inline__ uint32_t dwc_read_reg32( volatile uint32_t *reg) -+{ -+ return __raw_readl(reg); -+ // return readl(reg); -+}; -+ -+/** -+ * Writes a register with a 32 bit value. -+ * -+ * @param reg address of register to read. -+ * @param value to write to _reg. -+ * -+ * Usage:<br> -+ * <code>dwc_write_reg32(&dev_regs->dctl, 0); </code> -+ */ -+static __inline__ void dwc_write_reg32( volatile uint32_t *reg, const uint32_t value) -+{ -+ // writel( value, reg ); -+ __raw_writel(value, reg); -+ -+}; -+ -+/** -+ * This function modifies bit values in a register. Using the -+ * algorithm: (reg_contents & ~clear_mask) | set_mask. -+ * -+ * @param reg address of register to read. -+ * @param clear_mask bit mask to be cleared. -+ * @param set_mask bit mask to be set. -+ * -+ * Usage:<br> -+ * <code> // Clear the SOF Interrupt Mask bit and <br> -+ * // set the OTG Interrupt mask bit, leaving all others as they were. -+ * dwc_modify_reg32(&dev_regs->gintmsk, DWC_SOF_INT, DWC_OTG_INT);</code> -+ */ -+static __inline__ -+ void dwc_modify_reg32( volatile uint32_t *reg, const uint32_t clear_mask, const uint32_t set_mask) -+{ -+ // writel( (readl(reg) & ~clear_mask) | set_mask, reg ); -+ __raw_writel( (__raw_readl(reg) & ~clear_mask) | set_mask, reg ); -+}; -+ -+ -+/** -+ * Wrapper for the OS micro-second delay function. -+ * @param[in] usecs Microseconds of delay -+ */ -+static __inline__ void UDELAY( const uint32_t usecs ) -+{ -+ udelay( usecs ); -+} -+ -+/** -+ * Wrapper for the OS milli-second delay function. -+ * @param[in] msecs milliseconds of delay -+ */ -+static __inline__ void MDELAY( const uint32_t msecs ) -+{ -+ mdelay( msecs ); -+} -+ -+/** -+ * Wrapper for the Linux spin_lock. On the ARM (Integrator) -+ * spin_lock() is a nop. -+ * -+ * @param lock Pointer to the spinlock. -+ */ -+static __inline__ void SPIN_LOCK( spinlock_t *lock ) -+{ -+ spin_lock(lock); -+} -+ -+/** -+ * Wrapper for the Linux spin_unlock. On the ARM (Integrator) -+ * spin_lock() is a nop. -+ * -+ * @param lock Pointer to the spinlock. -+ */ -+static __inline__ void SPIN_UNLOCK( spinlock_t *lock ) -+{ -+ spin_unlock(lock); -+} -+ -+/** -+ * Wrapper (macro) for the Linux spin_lock_irqsave. On the ARM -+ * (Integrator) spin_lock() is a nop. -+ * -+ * @param l Pointer to the spinlock. -+ * @param f unsigned long for irq flags storage. -+ */ -+#define SPIN_LOCK_IRQSAVE( l, f ) spin_lock_irqsave(l,f); -+ -+/** -+ * Wrapper (macro) for the Linux spin_unlock_irqrestore. On the ARM -+ * (Integrator) spin_lock() is a nop. -+ * -+ * @param l Pointer to the spinlock. -+ * @param f unsigned long for irq flags storage. -+ */ -+#define SPIN_UNLOCK_IRQRESTORE( l,f ) spin_unlock_irqrestore(l,f); -+ -+/* -+ * Debugging support vanishes in non-debug builds. -+ */ -+ -+ -+/** -+ * The Debug Level bit-mask variable. -+ */ -+extern uint32_t g_dbg_lvl; -+/** -+ * Set the Debug Level variable. -+ */ -+static inline uint32_t SET_DEBUG_LEVEL( const uint32_t new ) -+{ -+ uint32_t old = g_dbg_lvl; -+ g_dbg_lvl = new; -+ return old; -+} -+ -+/** When debug level has the DBG_CIL bit set, display CIL Debug messages. */ -+#define DBG_CIL (0x2) -+/** When debug level has the DBG_CILV bit set, display CIL Verbose debug -+ * messages */ -+#define DBG_CILV (0x20) -+/** When debug level has the DBG_PCD bit set, display PCD (Device) debug -+ * messages */ -+#define DBG_PCD (0x4) -+/** When debug level has the DBG_PCDV set, display PCD (Device) Verbose debug -+ * messages */ -+#define DBG_PCDV (0x40) -+/** When debug level has the DBG_HCD bit set, display Host debug messages */ -+#define DBG_HCD (0x8) -+/** When debug level has the DBG_HCDV bit set, display Verbose Host debug -+ * messages */ -+#define DBG_HCDV (0x80) -+/** When debug level has the DBG_HCD_URB bit set, display enqueued URBs in host -+ * mode. */ -+#define DBG_HCD_URB (0x800) -+ -+/** When debug level has any bit set, display debug messages */ -+#define DBG_ANY (0xFF) -+ -+/** All debug messages off */ -+#define DBG_OFF 0 -+ -+/** Prefix string for DWC_DEBUG print macros. */ -+#define USB_DWC "DWC_otg: " -+ -+/** -+ * Print a debug message when the Global debug level variable contains -+ * the bit defined in <code>lvl</code>. -+ * -+ * @param[in] lvl - Debug level, use one of the DBG_ constants above. -+ * @param[in] x - like printf -+ * -+ * Example:<p> -+ * <code> -+ * DWC_DEBUGPL( DBG_ANY, "%s(%p)\n", __func__, _reg_base_addr); -+ * </code> -+ * <br> -+ * results in:<br> -+ * <code> -+ * usb-DWC_otg: dwc_otg_cil_init(ca867000) -+ * </code> -+ */ -+#ifdef DEBUG -+ -+# define DWC_DEBUGPL(lvl, x...) do{ if ((lvl)&g_dbg_lvl)printk( KERN_DEBUG USB_DWC x ); }while(0) -+# define DWC_DEBUGP(x...) DWC_DEBUGPL(DBG_ANY, x ) -+ -+# define CHK_DEBUG_LEVEL(level) ((level) & g_dbg_lvl) -+ -+#else -+ -+# define DWC_DEBUGPL(lvl, x...) do{}while(0) -+# define DWC_DEBUGP(x...) -+ -+# define CHK_DEBUG_LEVEL(level) (0) -+ -+#endif /*DEBUG*/ -+ -+/** -+ * Print an Error message. -+ */ -+#define DWC_ERROR(x...) printk( KERN_ERR USB_DWC x ) -+/** -+ * Print a Warning message. -+ */ -+#define DWC_WARN(x...) printk( KERN_WARNING USB_DWC x ) -+/** -+ * Print a notice (normal but significant message). -+ */ -+#define DWC_NOTICE(x...) printk( KERN_NOTICE USB_DWC x ) -+/** -+ * Basic message printing. -+ */ -+#define DWC_PRINT(x...) printk( KERN_INFO USB_DWC x ) -+ -+#endif -+ ---- /dev/null -+++ b/drivers/usb/dwc/otg_regs.h -@@ -0,0 +1,2059 @@ -+/* ========================================================================== -+ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_regs.h $ -+ * $Revision: #72 $ -+ * $Date: 2008/09/19 $ -+ * $Change: 1099526 $ -+ * -+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, -+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless -+ * otherwise expressly agreed to in writing between Synopsys and you. -+ * -+ * The Software IS NOT an item of Licensed Software or Licensed Product under -+ * any End User Software License Agreement or Agreement for Licensed Product -+ * with Synopsys or any supplement thereto. You are permitted to use and -+ * redistribute this Software in source and binary forms, with or without -+ * modification, provided that redistributions of source code must retain this -+ * notice. You may not view, use, disclose, copy or distribute this file or -+ * any information contained herein except pursuant to this license grant from -+ * Synopsys. If you do not agree with this notice, including the disclaimer -+ * below, then you are not authorized to use the Software. -+ * -+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS -+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, -+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -+ * DAMAGE. -+ * ========================================================================== */ -+ -+#ifndef __DWC_OTG_REGS_H__ -+#define __DWC_OTG_REGS_H__ -+ -+/** -+ * @file -+ * -+ * This file contains the data structures for accessing the DWC_otg core registers. -+ * -+ * The application interfaces with the HS OTG core by reading from and -+ * writing to the Control and Status Register (CSR) space through the -+ * AHB Slave interface. These registers are 32 bits wide, and the -+ * addresses are 32-bit-block aligned. -+ * CSRs are classified as follows: -+ * - Core Global Registers -+ * - Device Mode Registers -+ * - Device Global Registers -+ * - Device Endpoint Specific Registers -+ * - Host Mode Registers -+ * - Host Global Registers -+ * - Host Port CSRs -+ * - Host Channel Specific Registers -+ * -+ * Only the Core Global registers can be accessed in both Device and -+ * Host modes. When the HS OTG core is operating in one mode, either -+ * Device or Host, the application must not access registers from the -+ * other mode. When the core switches from one mode to another, the -+ * registers in the new mode of operation must be reprogrammed as they -+ * would be after a power-on reset. -+ */ -+ -+/** Maximum number of Periodic FIFOs */ -+#define MAX_PERIO_FIFOS 15 -+/** Maximum number of Transmit FIFOs */ -+#define MAX_TX_FIFOS 15 -+ -+/** Maximum number of Endpoints/HostChannels */ -+#define MAX_EPS_CHANNELS 16 -+ -+/****************************************************************************/ -+/** DWC_otg Core registers . -+ * The dwc_otg_core_global_regs structure defines the size -+ * and relative field offsets for the Core Global registers. -+ */ -+typedef struct dwc_otg_core_global_regs -+{ -+ /** OTG Control and Status Register. <i>Offset: 000h</i> */ -+ volatile uint32_t gotgctl; -+ /** OTG Interrupt Register. <i>Offset: 004h</i> */ -+ volatile uint32_t gotgint; -+ /**Core AHB Configuration Register. <i>Offset: 008h</i> */ -+ volatile uint32_t gahbcfg; -+ -+#define DWC_GLBINTRMASK 0x0001 -+#define DWC_DMAENABLE 0x0020 -+#define DWC_NPTXEMPTYLVL_EMPTY 0x0080 -+#define DWC_NPTXEMPTYLVL_HALFEMPTY 0x0000 -+#define DWC_PTXEMPTYLVL_EMPTY 0x0100 -+#define DWC_PTXEMPTYLVL_HALFEMPTY 0x0000 -+ -+ /**Core USB Configuration Register. <i>Offset: 00Ch</i> */ -+ volatile uint32_t gusbcfg; -+ /**Core Reset Register. <i>Offset: 010h</i> */ -+ volatile uint32_t grstctl; -+ /**Core Interrupt Register. <i>Offset: 014h</i> */ -+ volatile uint32_t gintsts; -+ /**Core Interrupt Mask Register. <i>Offset: 018h</i> */ -+ volatile uint32_t gintmsk; -+ /**Receive Status Queue Read Register (Read Only). <i>Offset: 01Ch</i> */ -+ volatile uint32_t grxstsr; -+ /**Receive Status Queue Read & POP Register (Read Only). <i>Offset: 020h</i>*/ -+ volatile uint32_t grxstsp; -+ /**Receive FIFO Size Register. <i>Offset: 024h</i> */ -+ volatile uint32_t grxfsiz; -+ /**Non Periodic Transmit FIFO Size Register. <i>Offset: 028h</i> */ -+ volatile uint32_t gnptxfsiz; -+ /**Non Periodic Transmit FIFO/Queue Status Register (Read -+ * Only). <i>Offset: 02Ch</i> */ -+ volatile uint32_t gnptxsts; -+ /**I2C Access Register. <i>Offset: 030h</i> */ -+ volatile uint32_t gi2cctl; -+ /**PHY Vendor Control Register. <i>Offset: 034h</i> */ -+ volatile uint32_t gpvndctl; -+ /**General Purpose Input/Output Register. <i>Offset: 038h</i> */ -+ volatile uint32_t ggpio; -+ /**User ID Register. <i>Offset: 03Ch</i> */ -+ volatile uint32_t guid; -+ /**Synopsys ID Register (Read Only). <i>Offset: 040h</i> */ -+ volatile uint32_t gsnpsid; -+ /**User HW Config1 Register (Read Only). <i>Offset: 044h</i> */ -+ volatile uint32_t ghwcfg1; -+ /**User HW Config2 Register (Read Only). <i>Offset: 048h</i> */ -+ volatile uint32_t ghwcfg2; -+#define DWC_SLAVE_ONLY_ARCH 0 -+#define DWC_EXT_DMA_ARCH 1 -+#define DWC_INT_DMA_ARCH 2 -+ -+#define DWC_MODE_HNP_SRP_CAPABLE 0 -+#define DWC_MODE_SRP_ONLY_CAPABLE 1 -+#define DWC_MODE_NO_HNP_SRP_CAPABLE 2 -+#define DWC_MODE_SRP_CAPABLE_DEVICE 3 -+#define DWC_MODE_NO_SRP_CAPABLE_DEVICE 4 -+#define DWC_MODE_SRP_CAPABLE_HOST 5 -+#define DWC_MODE_NO_SRP_CAPABLE_HOST 6 -+ -+ /**User HW Config3 Register (Read Only). <i>Offset: 04Ch</i> */ -+ volatile uint32_t ghwcfg3; -+ /**User HW Config4 Register (Read Only). <i>Offset: 050h</i>*/ -+ volatile uint32_t ghwcfg4; -+ /** Reserved <i>Offset: 054h-0FFh</i> */ -+ volatile uint32_t reserved[43]; -+ /** Host Periodic Transmit FIFO Size Register. <i>Offset: 100h</i> */ -+ volatile uint32_t hptxfsiz; -+ /** Device Periodic Transmit FIFO#n Register if dedicated fifos are disabled, -+ otherwise Device Transmit FIFO#n Register. -+ * <i>Offset: 104h + (FIFO_Number-1)*04h, 1 <= FIFO Number <= 15 (1<=n<=15).</i> */ -+ volatile uint32_t dptxfsiz_dieptxf[15]; -+} dwc_otg_core_global_regs_t; -+ -+/** -+ * This union represents the bit fields of the Core OTG Control -+ * and Status Register (GOTGCTL). Set the bits using the bit -+ * fields then write the <i>d32</i> value to the register. -+ */ -+typedef union gotgctl_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned sesreqscs : 1; -+ unsigned sesreq : 1; -+ unsigned reserved2_7 : 6; -+ unsigned hstnegscs : 1; -+ unsigned hnpreq : 1; -+ unsigned hstsethnpen : 1; -+ unsigned devhnpen : 1; -+ unsigned reserved12_15 : 4; -+ unsigned conidsts : 1; -+ unsigned reserved17 : 1; -+ unsigned asesvld : 1; -+ unsigned bsesvld : 1; -+ unsigned currmod : 1; -+ unsigned reserved21_31 : 11; -+ } b; -+} gotgctl_data_t; -+ -+/** -+ * This union represents the bit fields of the Core OTG Interrupt Register -+ * (GOTGINT). Set/clear the bits using the bit fields then write the <i>d32</i> -+ * value to the register. -+ */ -+typedef union gotgint_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** Current Mode */ -+ unsigned reserved0_1 : 2; -+ -+ /** Session End Detected */ -+ unsigned sesenddet : 1; -+ -+ unsigned reserved3_7 : 5; -+ -+ /** Session Request Success Status Change */ -+ unsigned sesreqsucstschng : 1; -+ /** Host Negotiation Success Status Change */ -+ unsigned hstnegsucstschng : 1; -+ -+ unsigned reserver10_16 : 7; -+ -+ /** Host Negotiation Detected */ -+ unsigned hstnegdet : 1; -+ /** A-Device Timeout Change */ -+ unsigned adevtoutchng : 1; -+ /** Debounce Done */ -+ unsigned debdone : 1; -+ -+ unsigned reserved31_20 : 12; -+ -+ } b; -+} gotgint_data_t; -+ -+ -+/** -+ * This union represents the bit fields of the Core AHB Configuration -+ * Register (GAHBCFG). Set/clear the bits using the bit fields then -+ * write the <i>d32</i> value to the register. -+ */ -+typedef union gahbcfg_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned glblintrmsk : 1; -+#define DWC_GAHBCFG_GLBINT_ENABLE 1 -+ -+ unsigned hburstlen : 4; -+#define DWC_GAHBCFG_INT_DMA_BURST_SINGLE 0 -+#define DWC_GAHBCFG_INT_DMA_BURST_INCR 1 -+#define DWC_GAHBCFG_INT_DMA_BURST_INCR4 3 -+#define DWC_GAHBCFG_INT_DMA_BURST_INCR8 5 -+#define DWC_GAHBCFG_INT_DMA_BURST_INCR16 7 -+ -+ unsigned dmaenable : 1; -+#define DWC_GAHBCFG_DMAENABLE 1 -+ unsigned reserved : 1; -+ unsigned nptxfemplvl_txfemplvl : 1; -+ unsigned ptxfemplvl : 1; -+#define DWC_GAHBCFG_TXFEMPTYLVL_EMPTY 1 -+#define DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY 0 -+ unsigned reserved9_31 : 23; -+ } b; -+} gahbcfg_data_t; -+ -+/** -+ * This union represents the bit fields of the Core USB Configuration -+ * Register (GUSBCFG). Set the bits using the bit fields then write -+ * the <i>d32</i> value to the register. -+ */ -+typedef union gusbcfg_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned toutcal : 3; -+ unsigned phyif : 1; -+ unsigned ulpi_utmi_sel : 1; -+ unsigned fsintf : 1; -+ unsigned physel : 1; -+ unsigned ddrsel : 1; -+ unsigned srpcap : 1; -+ unsigned hnpcap : 1; -+ unsigned usbtrdtim : 4; -+ unsigned nptxfrwnden : 1; -+ unsigned phylpwrclksel : 1; -+ unsigned otgutmifssel : 1; -+ unsigned ulpi_fsls : 1; -+ unsigned ulpi_auto_res : 1; -+ unsigned ulpi_clk_sus_m : 1; -+ unsigned ulpi_ext_vbus_drv : 1; -+ unsigned ulpi_int_vbus_indicator : 1; -+ unsigned term_sel_dl_pulse : 1; -+ unsigned reserved23_27 : 5; -+ unsigned tx_end_delay : 1; -+ unsigned reserved29_31 : 3; -+ } b; -+} gusbcfg_data_t; -+ -+/** -+ * This union represents the bit fields of the Core Reset Register -+ * (GRSTCTL). Set/clear the bits using the bit fields then write the -+ * <i>d32</i> value to the register. -+ */ -+typedef union grstctl_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** Core Soft Reset (CSftRst) (Device and Host) -+ * -+ * The application can flush the control logic in the -+ * entire core using this bit. This bit resets the -+ * pipelines in the AHB Clock domain as well as the -+ * PHY Clock domain. -+ * -+ * The state machines are reset to an IDLE state, the -+ * control bits in the CSRs are cleared, all the -+ * transmit FIFOs and the receive FIFO are flushed. -+ * -+ * The status mask bits that control the generation of -+ * the interrupt, are cleared, to clear the -+ * interrupt. The interrupt status bits are not -+ * cleared, so the application can get the status of -+ * any events that occurred in the core after it has -+ * set this bit. -+ * -+ * Any transactions on the AHB are terminated as soon -+ * as possible following the protocol. Any -+ * transactions on the USB are terminated immediately. -+ * -+ * The configuration settings in the CSRs are -+ * unchanged, so the software doesn't have to -+ * reprogram these registers (Device -+ * Configuration/Host Configuration/Core System -+ * Configuration/Core PHY Configuration). -+ * -+ * The application can write to this bit, any time it -+ * wants to reset the core. This is a self clearing -+ * bit and the core clears this bit after all the -+ * necessary logic is reset in the core, which may -+ * take several clocks, depending on the current state -+ * of the core. -+ */ -+ unsigned csftrst : 1; -+ /** Hclk Soft Reset -+ * -+ * The application uses this bit to reset the control logic in -+ * the AHB clock domain. Only AHB clock domain pipelines are -+ * reset. -+ */ -+ unsigned hsftrst : 1; -+ /** Host Frame Counter Reset (Host Only)<br> -+ * -+ * The application can reset the (micro)frame number -+ * counter inside the core, using this bit. When the -+ * (micro)frame counter is reset, the subsequent SOF -+ * sent out by the core, will have a (micro)frame -+ * number of 0. -+ */ -+ unsigned hstfrm : 1; -+ /** In Token Sequence Learning Queue Flush -+ * (INTknQFlsh) (Device Only) -+ */ -+ unsigned intknqflsh : 1; -+ /** RxFIFO Flush (RxFFlsh) (Device and Host) -+ * -+ * The application can flush the entire Receive FIFO -+ * using this bit. <p>The application must first -+ * ensure that the core is not in the middle of a -+ * transaction. <p>The application should write into -+ * this bit, only after making sure that neither the -+ * DMA engine is reading from the RxFIFO nor the MAC -+ * is writing the data in to the FIFO. <p>The -+ * application should wait until the bit is cleared -+ * before performing any other operations. This bit -+ * will takes 8 clocks (slowest of PHY or AHB clock) -+ * to clear. -+ */ -+ unsigned rxfflsh : 1; -+ /** TxFIFO Flush (TxFFlsh) (Device and Host). -+ * -+ * This bit is used to selectively flush a single or -+ * all transmit FIFOs. The application must first -+ * ensure that the core is not in the middle of a -+ * transaction. <p>The application should write into -+ * this bit, only after making sure that neither the -+ * DMA engine is writing into the TxFIFO nor the MAC -+ * is reading the data out of the FIFO. <p>The -+ * application should wait until the core clears this -+ * bit, before performing any operations. This bit -+ * will takes 8 clocks (slowest of PHY or AHB clock) -+ * to clear. -+ */ -+ unsigned txfflsh : 1; -+ /** TxFIFO Number (TxFNum) (Device and Host). -+ * -+ * This is the FIFO number which needs to be flushed, -+ * using the TxFIFO Flush bit. This field should not -+ * be changed until the TxFIFO Flush bit is cleared by -+ * the core. -+ * - 0x0 : Non Periodic TxFIFO Flush -+ * - 0x1 : Periodic TxFIFO #1 Flush in device mode -+ * or Periodic TxFIFO in host mode -+ * - 0x2 : Periodic TxFIFO #2 Flush in device mode. -+ * - ... -+ * - 0xF : Periodic TxFIFO #15 Flush in device mode -+ * - 0x10: Flush all the Transmit NonPeriodic and -+ * Transmit Periodic FIFOs in the core -+ */ -+ unsigned txfnum : 5; -+ /** Reserved */ -+ unsigned reserved11_29 : 19; -+ /** DMA Request Signal. Indicated DMA request is in -+ * probress. Used for debug purpose. */ -+ unsigned dmareq : 1; -+ /** AHB Master Idle. Indicates the AHB Master State -+ * Machine is in IDLE condition. */ -+ unsigned ahbidle : 1; -+ } b; -+} grstctl_t; -+ -+ -+/** -+ * This union represents the bit fields of the Core Interrupt Mask -+ * Register (GINTMSK). Set/clear the bits using the bit fields then -+ * write the <i>d32</i> value to the register. -+ */ -+typedef union gintmsk_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned reserved0 : 1; -+ unsigned modemismatch : 1; -+ unsigned otgintr : 1; -+ unsigned sofintr : 1; -+ unsigned rxstsqlvl : 1; -+ unsigned nptxfempty : 1; -+ unsigned ginnakeff : 1; -+ unsigned goutnakeff : 1; -+ unsigned reserved8 : 1; -+ unsigned i2cintr : 1; -+ unsigned erlysuspend : 1; -+ unsigned usbsuspend : 1; -+ unsigned usbreset : 1; -+ unsigned enumdone : 1; -+ unsigned isooutdrop : 1; -+ unsigned eopframe : 1; -+ unsigned reserved16 : 1; -+ unsigned epmismatch : 1; -+ unsigned inepintr : 1; -+ unsigned outepintr : 1; -+ unsigned incomplisoin : 1; -+ unsigned incomplisoout : 1; -+ unsigned reserved22_23 : 2; -+ unsigned portintr : 1; -+ unsigned hcintr : 1; -+ unsigned ptxfempty : 1; -+ unsigned reserved27 : 1; -+ unsigned conidstschng : 1; -+ unsigned disconnect : 1; -+ unsigned sessreqintr : 1; -+ unsigned wkupintr : 1; -+ } b; -+} gintmsk_data_t; -+/** -+ * This union represents the bit fields of the Core Interrupt Register -+ * (GINTSTS). Set/clear the bits using the bit fields then write the -+ * <i>d32</i> value to the register. -+ */ -+typedef union gintsts_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+#define DWC_SOF_INTR_MASK 0x0008 -+ /** register bits */ -+ struct -+ { -+#define DWC_HOST_MODE 1 -+ unsigned curmode : 1; -+ unsigned modemismatch : 1; -+ unsigned otgintr : 1; -+ unsigned sofintr : 1; -+ unsigned rxstsqlvl : 1; -+ unsigned nptxfempty : 1; -+ unsigned ginnakeff : 1; -+ unsigned goutnakeff : 1; -+ unsigned reserved8 : 1; -+ unsigned i2cintr : 1; -+ unsigned erlysuspend : 1; -+ unsigned usbsuspend : 1; -+ unsigned usbreset : 1; -+ unsigned enumdone : 1; -+ unsigned isooutdrop : 1; -+ unsigned eopframe : 1; -+ unsigned intokenrx : 1; -+ unsigned epmismatch : 1; -+ unsigned inepint: 1; -+ unsigned outepintr : 1; -+ unsigned incomplisoin : 1; -+ unsigned incomplisoout : 1; -+ unsigned reserved22_23 : 2; -+ unsigned portintr : 1; -+ unsigned hcintr : 1; -+ unsigned ptxfempty : 1; -+ unsigned reserved27 : 1; -+ unsigned conidstschng : 1; -+ unsigned disconnect : 1; -+ unsigned sessreqintr : 1; -+ unsigned wkupintr : 1; -+ } b; -+} gintsts_data_t; -+ -+ -+/** -+ * This union represents the bit fields in the Device Receive Status Read and -+ * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the <i>d32</i> -+ * element then read out the bits using the <i>b</i>it elements. -+ */ -+typedef union device_grxsts_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned epnum : 4; -+ unsigned bcnt : 11; -+ unsigned dpid : 2; -+#define DWC_STS_DATA_UPDT 0x2 // OUT Data Packet -+#define DWC_STS_XFER_COMP 0x3 // OUT Data Transfer Complete -+ -+#define DWC_DSTS_GOUT_NAK 0x1 // Global OUT NAK -+#define DWC_DSTS_SETUP_COMP 0x4 // Setup Phase Complete -+#define DWC_DSTS_SETUP_UPDT 0x6 // SETUP Packet -+ unsigned pktsts : 4; -+ unsigned fn : 4; -+ unsigned reserved : 7; -+ } b; -+} device_grxsts_data_t; -+ -+/** -+ * This union represents the bit fields in the Host Receive Status Read and -+ * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the <i>d32</i> -+ * element then read out the bits using the <i>b</i>it elements. -+ */ -+typedef union host_grxsts_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned chnum : 4; -+ unsigned bcnt : 11; -+ unsigned dpid : 2; -+ unsigned pktsts : 4; -+#define DWC_GRXSTS_PKTSTS_IN 0x2 -+#define DWC_GRXSTS_PKTSTS_IN_XFER_COMP 0x3 -+#define DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR 0x5 -+#define DWC_GRXSTS_PKTSTS_CH_HALTED 0x7 -+ unsigned reserved : 11; -+ } b; -+} host_grxsts_data_t; -+ -+/** -+ * This union represents the bit fields in the FIFO Size Registers (HPTXFSIZ, -+ * GNPTXFSIZ, DPTXFSIZn, DIEPTXFn). Read the register into the <i>d32</i> element then -+ * read out the bits using the <i>b</i>it elements. -+ */ -+typedef union fifosize_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned startaddr : 16; -+ unsigned depth : 16; -+ } b; -+} fifosize_data_t; -+ -+/** -+ * This union represents the bit fields in the Non-Periodic Transmit -+ * FIFO/Queue Status Register (GNPTXSTS). Read the register into the -+ * <i>d32</i> element then read out the bits using the <i>b</i>it -+ * elements. -+ */ -+typedef union gnptxsts_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned nptxfspcavail : 16; -+ unsigned nptxqspcavail : 8; -+ /** Top of the Non-Periodic Transmit Request Queue -+ * - bit 24 - Terminate (Last entry for the selected -+ * channel/EP) -+ * - bits 26:25 - Token Type -+ * - 2'b00 - IN/OUT -+ * - 2'b01 - Zero Length OUT -+ * - 2'b10 - PING/Complete Split -+ * - 2'b11 - Channel Halt -+ * - bits 30:27 - Channel/EP Number -+ */ -+ unsigned nptxqtop_terminate : 1; -+ unsigned nptxqtop_token : 2; -+ unsigned nptxqtop_chnep : 4; -+ unsigned reserved : 1; -+ } b; -+} gnptxsts_data_t; -+ -+/** -+ * This union represents the bit fields in the Transmit -+ * FIFO Status Register (DTXFSTS). Read the register into the -+ * <i>d32</i> element then read out the bits using the <i>b</i>it -+ * elements. -+ */ -+typedef union dtxfsts_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned txfspcavail : 16; -+ unsigned reserved : 16; -+ } b; -+} dtxfsts_data_t; -+ -+/** -+ * This union represents the bit fields in the I2C Control Register -+ * (I2CCTL). Read the register into the <i>d32</i> element then read out the -+ * bits using the <i>b</i>it elements. -+ */ -+typedef union gi2cctl_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned rwdata : 8; -+ unsigned regaddr : 8; -+ unsigned addr : 7; -+ unsigned i2cen : 1; -+ unsigned ack : 1; -+ unsigned i2csuspctl : 1; -+ unsigned i2cdevaddr : 2; -+ unsigned reserved : 2; -+ unsigned rw : 1; -+ unsigned bsydne : 1; -+ } b; -+} gi2cctl_data_t; -+ -+/** -+ * This union represents the bit fields in the User HW Config1 -+ * Register. Read the register into the <i>d32</i> element then read -+ * out the bits using the <i>b</i>it elements. -+ */ -+typedef union hwcfg1_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned ep_dir0 : 2; -+ unsigned ep_dir1 : 2; -+ unsigned ep_dir2 : 2; -+ unsigned ep_dir3 : 2; -+ unsigned ep_dir4 : 2; -+ unsigned ep_dir5 : 2; -+ unsigned ep_dir6 : 2; -+ unsigned ep_dir7 : 2; -+ unsigned ep_dir8 : 2; -+ unsigned ep_dir9 : 2; -+ unsigned ep_dir10 : 2; -+ unsigned ep_dir11 : 2; -+ unsigned ep_dir12 : 2; -+ unsigned ep_dir13 : 2; -+ unsigned ep_dir14 : 2; -+ unsigned ep_dir15 : 2; -+ } b; -+} hwcfg1_data_t; -+ -+/** -+ * This union represents the bit fields in the User HW Config2 -+ * Register. Read the register into the <i>d32</i> element then read -+ * out the bits using the <i>b</i>it elements. -+ */ -+typedef union hwcfg2_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /* GHWCFG2 */ -+ unsigned op_mode : 3; -+#define DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG 0 -+#define DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG 1 -+#define DWC_HWCFG2_OP_MODE_NO_HNP_SRP_CAPABLE_OTG 2 -+#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE 3 -+#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_DEVICE 4 -+#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST 5 -+#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST 6 -+ -+ unsigned architecture : 2; -+ unsigned point2point : 1; -+ unsigned hs_phy_type : 2; -+#define DWC_HWCFG2_HS_PHY_TYPE_NOT_SUPPORTED 0 -+#define DWC_HWCFG2_HS_PHY_TYPE_UTMI 1 -+#define DWC_HWCFG2_HS_PHY_TYPE_ULPI 2 -+#define DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI 3 -+ -+ unsigned fs_phy_type : 2; -+ unsigned num_dev_ep : 4; -+ unsigned num_host_chan : 4; -+ unsigned perio_ep_supported : 1; -+ unsigned dynamic_fifo : 1; -+ unsigned multi_proc_int : 1; -+ unsigned reserved21 : 1; -+ unsigned nonperio_tx_q_depth : 2; -+ unsigned host_perio_tx_q_depth : 2; -+ unsigned dev_token_q_depth : 5; -+ unsigned reserved31 : 1; -+ } b; -+} hwcfg2_data_t; -+ -+/** -+ * This union represents the bit fields in the User HW Config3 -+ * Register. Read the register into the <i>d32</i> element then read -+ * out the bits using the <i>b</i>it elements. -+ */ -+typedef union hwcfg3_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /* GHWCFG3 */ -+ unsigned xfer_size_cntr_width : 4; -+ unsigned packet_size_cntr_width : 3; -+ unsigned otg_func : 1; -+ unsigned i2c : 1; -+ unsigned vendor_ctrl_if : 1; -+ unsigned optional_features : 1; -+ unsigned synch_reset_type : 1; -+ unsigned ahb_phy_clock_synch : 1; -+ unsigned reserved15_13 : 3; -+ unsigned dfifo_depth : 16; -+ } b; -+} hwcfg3_data_t; -+ -+/** -+ * This union represents the bit fields in the User HW Config4 -+ * Register. Read the register into the <i>d32</i> element then read -+ * out the bits using the <i>b</i>it elements. -+ */ -+typedef union hwcfg4_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned num_dev_perio_in_ep : 4; -+ unsigned power_optimiz : 1; -+ unsigned min_ahb_freq : 9; -+ unsigned utmi_phy_data_width : 2; -+ unsigned num_dev_mode_ctrl_ep : 4; -+ unsigned iddig_filt_en : 1; -+ unsigned vbus_valid_filt_en : 1; -+ unsigned a_valid_filt_en : 1; -+ unsigned b_valid_filt_en : 1; -+ unsigned session_end_filt_en : 1; -+ unsigned ded_fifo_en : 1; -+ unsigned num_in_eps : 4; -+ unsigned desc_dma : 1; -+ unsigned desc_dma_dyn : 1; -+ } b; -+} hwcfg4_data_t; -+ -+//////////////////////////////////////////// -+// Device Registers -+/** -+ * Device Global Registers. <i>Offsets 800h-BFFh</i> -+ * -+ * The following structures define the size and relative field offsets -+ * for the Device Mode Registers. -+ * -+ * <i>These registers are visible only in Device mode and must not be -+ * accessed in Host mode, as the results are unknown.</i> -+ */ -+typedef struct dwc_otg_dev_global_regs -+{ -+ /** Device Configuration Register. <i>Offset 800h</i> */ -+ volatile uint32_t dcfg; -+ /** Device Control Register. <i>Offset: 804h</i> */ -+ volatile uint32_t dctl; -+ /** Device Status Register (Read Only). <i>Offset: 808h</i> */ -+ volatile uint32_t dsts; -+ /** Reserved. <i>Offset: 80Ch</i> */ -+ uint32_t unused; -+ /** Device IN Endpoint Common Interrupt Mask -+ * Register. <i>Offset: 810h</i> */ -+ volatile uint32_t diepmsk; -+ /** Device OUT Endpoint Common Interrupt Mask -+ * Register. <i>Offset: 814h</i> */ -+ volatile uint32_t doepmsk; -+ /** Device All Endpoints Interrupt Register. <i>Offset: 818h</i> */ -+ volatile uint32_t daint; -+ /** Device All Endpoints Interrupt Mask Register. <i>Offset: -+ * 81Ch</i> */ -+ volatile uint32_t daintmsk; -+ /** Device IN Token Queue Read Register-1 (Read Only). -+ * <i>Offset: 820h</i> */ -+ volatile uint32_t dtknqr1; -+ /** Device IN Token Queue Read Register-2 (Read Only). -+ * <i>Offset: 824h</i> */ -+ volatile uint32_t dtknqr2; -+ /** Device VBUS discharge Register. <i>Offset: 828h</i> */ -+ volatile uint32_t dvbusdis; -+ /** Device VBUS Pulse Register. <i>Offset: 82Ch</i> */ -+ volatile uint32_t dvbuspulse; -+ /** Device IN Token Queue Read Register-3 (Read Only). / -+ * Device Thresholding control register (Read/Write) -+ * <i>Offset: 830h</i> */ -+ volatile uint32_t dtknqr3_dthrctl; -+ /** Device IN Token Queue Read Register-4 (Read Only). / -+ * Device IN EPs empty Inr. Mask Register (Read/Write) -+ * <i>Offset: 834h</i> */ -+ volatile uint32_t dtknqr4_fifoemptymsk; -+ /** Device Each Endpoint Interrupt Register (Read Only). / -+ * <i>Offset: 838h</i> */ -+ volatile uint32_t deachint; -+ /** Device Each Endpoint Interrupt mask Register (Read/Write). / -+ * <i>Offset: 83Ch</i> */ -+ volatile uint32_t deachintmsk; -+ /** Device Each In Endpoint Interrupt mask Register (Read/Write). / -+ * <i>Offset: 840h</i> */ -+ volatile uint32_t diepeachintmsk[MAX_EPS_CHANNELS]; -+ /** Device Each Out Endpoint Interrupt mask Register (Read/Write). / -+ * <i>Offset: 880h</i> */ -+ volatile uint32_t doepeachintmsk[MAX_EPS_CHANNELS]; -+} dwc_otg_device_global_regs_t; -+ -+/** -+ * This union represents the bit fields in the Device Configuration -+ * Register. Read the register into the <i>d32</i> member then -+ * set/clear the bits using the <i>b</i>it elements. Write the -+ * <i>d32</i> member to the dcfg register. -+ */ -+typedef union dcfg_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** Device Speed */ -+ unsigned devspd : 2; -+ /** Non Zero Length Status OUT Handshake */ -+ unsigned nzstsouthshk : 1; -+#define DWC_DCFG_SEND_STALL 1 -+ -+ unsigned reserved3 : 1; -+ /** Device Addresses */ -+ unsigned devaddr : 7; -+ /** Periodic Frame Interval */ -+ unsigned perfrint : 2; -+#define DWC_DCFG_FRAME_INTERVAL_80 0 -+#define DWC_DCFG_FRAME_INTERVAL_85 1 -+#define DWC_DCFG_FRAME_INTERVAL_90 2 -+#define DWC_DCFG_FRAME_INTERVAL_95 3 -+ -+ unsigned reserved13_17 : 5; -+ /** In Endpoint Mis-match count */ -+ unsigned epmscnt : 5; -+ /** Enable Descriptor DMA in Device mode */ -+ unsigned descdma : 1; -+ } b; -+} dcfg_data_t; -+ -+/** -+ * This union represents the bit fields in the Device Control -+ * Register. Read the register into the <i>d32</i> member then -+ * set/clear the bits using the <i>b</i>it elements. -+ */ -+typedef union dctl_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** Remote Wakeup */ -+ unsigned rmtwkupsig : 1; -+ /** Soft Disconnect */ -+ unsigned sftdiscon : 1; -+ /** Global Non-Periodic IN NAK Status */ -+ unsigned gnpinnaksts : 1; -+ /** Global OUT NAK Status */ -+ unsigned goutnaksts : 1; -+ /** Test Control */ -+ unsigned tstctl : 3; -+ /** Set Global Non-Periodic IN NAK */ -+ unsigned sgnpinnak : 1; -+ /** Clear Global Non-Periodic IN NAK */ -+ unsigned cgnpinnak : 1; -+ /** Set Global OUT NAK */ -+ unsigned sgoutnak : 1; -+ /** Clear Global OUT NAK */ -+ unsigned cgoutnak : 1; -+ -+ /** Power-On Programming Done */ -+ unsigned pwronprgdone : 1; -+ /** Global Continue on BNA */ -+ unsigned gcontbna : 1; -+ /** Global Multi Count */ -+ unsigned gmc : 2; -+ /** Ignore Frame Number for ISOC EPs */ -+ unsigned ifrmnum : 1; -+ /** NAK on Babble */ -+ unsigned nakonbble : 1; -+ -+ unsigned reserved16_31 : 16; -+ } b; -+} dctl_data_t; -+ -+/** -+ * This union represents the bit fields in the Device Status -+ * Register. Read the register into the <i>d32</i> member then -+ * set/clear the bits using the <i>b</i>it elements. -+ */ -+typedef union dsts_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** Suspend Status */ -+ unsigned suspsts : 1; -+ /** Enumerated Speed */ -+ unsigned enumspd : 2; -+#define DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ 0 -+#define DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ 1 -+#define DWC_DSTS_ENUMSPD_LS_PHY_6MHZ 2 -+#define DWC_DSTS_ENUMSPD_FS_PHY_48MHZ 3 -+ /** Erratic Error */ -+ unsigned errticerr : 1; -+ unsigned reserved4_7: 4; -+ /** Frame or Microframe Number of the received SOF */ -+ unsigned soffn : 14; -+ unsigned reserved22_31 : 10; -+ } b; -+} dsts_data_t; -+ -+ -+/** -+ * This union represents the bit fields in the Device IN EP Interrupt -+ * Register and the Device IN EP Common Mask Register. -+ * -+ * - Read the register into the <i>d32</i> member then set/clear the -+ * bits using the <i>b</i>it elements. -+ */ -+typedef union diepint_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** Transfer complete mask */ -+ unsigned xfercompl : 1; -+ /** Endpoint disable mask */ -+ unsigned epdisabled : 1; -+ /** AHB Error mask */ -+ unsigned ahberr : 1; -+ /** TimeOUT Handshake mask (non-ISOC EPs) */ -+ unsigned timeout : 1; -+ /** IN Token received with TxF Empty mask */ -+ unsigned intktxfemp : 1; -+ /** IN Token Received with EP mismatch mask */ -+ unsigned intknepmis : 1; -+ /** IN Endpoint HAK Effective mask */ -+ unsigned inepnakeff : 1; -+ /** IN Endpoint HAK Effective mask */ -+ unsigned emptyintr : 1; -+ unsigned txfifoundrn : 1; -+ -+ /** BNA Interrupt mask */ -+ unsigned bna : 1; -+ unsigned reserved10_12 : 3; -+ /** BNA Interrupt mask */ -+ unsigned nak : 1; -+ unsigned reserved14_31 : 18; -+ } b; -+} diepint_data_t; -+ -+/** -+ * This union represents the bit fields in the Device IN EP -+ * Common/Dedicated Interrupt Mask Register. -+ */ -+typedef union diepint_data diepmsk_data_t; -+ -+/** -+ * This union represents the bit fields in the Device OUT EP Interrupt -+ * Registerand Device OUT EP Common Interrupt Mask Register. -+ * -+ * - Read the register into the <i>d32</i> member then set/clear the -+ * bits using the <i>b</i>it elements. -+ */ -+typedef union doepint_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** Transfer complete */ -+ unsigned xfercompl : 1; -+ /** Endpoint disable */ -+ unsigned epdisabled : 1; -+ /** AHB Error */ -+ unsigned ahberr : 1; -+ /** Setup Phase Done (contorl EPs) */ -+ unsigned setup : 1; -+ /** OUT Token Received when Endpoint Disabled */ -+ unsigned outtknepdis : 1; -+ unsigned stsphsercvd : 1; -+ /** Back-to-Back SETUP Packets Received */ -+ unsigned back2backsetup : 1; -+ unsigned reserved7 : 1; -+ /** OUT packet Error */ -+ unsigned outpkterr : 1; -+ /** BNA Interrupt */ -+ unsigned bna : 1; -+ unsigned reserved10 : 1; -+ /** Packet Drop Status */ -+ unsigned pktdrpsts : 1; -+ /** Babble Interrupt */ -+ unsigned babble : 1; -+ /** NAK Interrupt */ -+ unsigned nak : 1; -+ /** NYET Interrupt */ -+ unsigned nyet : 1; -+ -+ unsigned reserved15_31 : 17; -+ } b; -+} doepint_data_t; -+ -+/** -+ * This union represents the bit fields in the Device OUT EP -+ * Common/Dedicated Interrupt Mask Register. -+ */ -+typedef union doepint_data doepmsk_data_t; -+ -+/** -+ * This union represents the bit fields in the Device All EP Interrupt -+ * and Mask Registers. -+ * - Read the register into the <i>d32</i> member then set/clear the -+ * bits using the <i>b</i>it elements. -+ */ -+typedef union daint_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** IN Endpoint bits */ -+ unsigned in : 16; -+ /** OUT Endpoint bits */ -+ unsigned out : 16; -+ } ep; -+ struct -+ { -+ /** IN Endpoint bits */ -+ unsigned inep0 : 1; -+ unsigned inep1 : 1; -+ unsigned inep2 : 1; -+ unsigned inep3 : 1; -+ unsigned inep4 : 1; -+ unsigned inep5 : 1; -+ unsigned inep6 : 1; -+ unsigned inep7 : 1; -+ unsigned inep8 : 1; -+ unsigned inep9 : 1; -+ unsigned inep10 : 1; -+ unsigned inep11 : 1; -+ unsigned inep12 : 1; -+ unsigned inep13 : 1; -+ unsigned inep14 : 1; -+ unsigned inep15 : 1; -+ /** OUT Endpoint bits */ -+ unsigned outep0 : 1; -+ unsigned outep1 : 1; -+ unsigned outep2 : 1; -+ unsigned outep3 : 1; -+ unsigned outep4 : 1; -+ unsigned outep5 : 1; -+ unsigned outep6 : 1; -+ unsigned outep7 : 1; -+ unsigned outep8 : 1; -+ unsigned outep9 : 1; -+ unsigned outep10 : 1; -+ unsigned outep11 : 1; -+ unsigned outep12 : 1; -+ unsigned outep13 : 1; -+ unsigned outep14 : 1; -+ unsigned outep15 : 1; -+ } b; -+} daint_data_t; -+ -+/** -+ * This union represents the bit fields in the Device IN Token Queue -+ * Read Registers. -+ * - Read the register into the <i>d32</i> member. -+ * - READ-ONLY Register -+ */ -+typedef union dtknq1_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** In Token Queue Write Pointer */ -+ unsigned intknwptr : 5; -+ /** Reserved */ -+ unsigned reserved05_06 : 2; -+ /** write pointer has wrapped. */ -+ unsigned wrap_bit : 1; -+ /** EP Numbers of IN Tokens 0 ... 4 */ -+ unsigned epnums0_5 : 24; -+ }b; -+} dtknq1_data_t; -+ -+/** -+ * This union represents Threshold control Register -+ * - Read and write the register into the <i>d32</i> member. -+ * - READ-WRITABLE Register -+ */ -+typedef union dthrctl_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** non ISO Tx Thr. Enable */ -+ unsigned non_iso_thr_en : 1; -+ /** ISO Tx Thr. Enable */ -+ unsigned iso_thr_en : 1; -+ /** Tx Thr. Length */ -+ unsigned tx_thr_len : 9; -+ /** Reserved */ -+ unsigned reserved11_15 : 5; -+ /** Rx Thr. Enable */ -+ unsigned rx_thr_en : 1; -+ /** Rx Thr. Length */ -+ unsigned rx_thr_len : 9; -+ /** Reserved */ -+ unsigned reserved26_31 : 6; -+ }b; -+} dthrctl_data_t; -+ -+ -+/** -+ * Device Logical IN Endpoint-Specific Registers. <i>Offsets -+ * 900h-AFCh</i> -+ * -+ * There will be one set of endpoint registers per logical endpoint -+ * implemented. -+ * -+ * <i>These registers are visible only in Device mode and must not be -+ * accessed in Host mode, as the results are unknown.</i> -+ */ -+typedef struct dwc_otg_dev_in_ep_regs -+{ -+ /** Device IN Endpoint Control Register. <i>Offset:900h + -+ * (ep_num * 20h) + 00h</i> */ -+ volatile uint32_t diepctl; -+ /** Reserved. <i>Offset:900h + (ep_num * 20h) + 04h</i> */ -+ uint32_t reserved04; -+ /** Device IN Endpoint Interrupt Register. <i>Offset:900h + -+ * (ep_num * 20h) + 08h</i> */ -+ volatile uint32_t diepint; -+ /** Reserved. <i>Offset:900h + (ep_num * 20h) + 0Ch</i> */ -+ uint32_t reserved0C; -+ /** Device IN Endpoint Transfer Size -+ * Register. <i>Offset:900h + (ep_num * 20h) + 10h</i> */ -+ volatile uint32_t dieptsiz; -+ /** Device IN Endpoint DMA Address Register. <i>Offset:900h + -+ * (ep_num * 20h) + 14h</i> */ -+ volatile uint32_t diepdma; -+ /** Device IN Endpoint Transmit FIFO Status Register. <i>Offset:900h + -+ * (ep_num * 20h) + 18h</i> */ -+ volatile uint32_t dtxfsts; -+ /** Device IN Endpoint DMA Buffer Register. <i>Offset:900h + -+ * (ep_num * 20h) + 1Ch</i> */ -+ volatile uint32_t diepdmab; -+} dwc_otg_dev_in_ep_regs_t; -+ -+/** -+ * Device Logical OUT Endpoint-Specific Registers. <i>Offsets: -+ * B00h-CFCh</i> -+ * -+ * There will be one set of endpoint registers per logical endpoint -+ * implemented. -+ * -+ * <i>These registers are visible only in Device mode and must not be -+ * accessed in Host mode, as the results are unknown.</i> -+ */ -+typedef struct dwc_otg_dev_out_ep_regs -+{ -+ /** Device OUT Endpoint Control Register. <i>Offset:B00h + -+ * (ep_num * 20h) + 00h</i> */ -+ volatile uint32_t doepctl; -+ /** Device OUT Endpoint Frame number Register. <i>Offset: -+ * B00h + (ep_num * 20h) + 04h</i> */ -+ volatile uint32_t doepfn; -+ /** Device OUT Endpoint Interrupt Register. <i>Offset:B00h + -+ * (ep_num * 20h) + 08h</i> */ -+ volatile uint32_t doepint; -+ /** Reserved. <i>Offset:B00h + (ep_num * 20h) + 0Ch</i> */ -+ uint32_t reserved0C; -+ /** Device OUT Endpoint Transfer Size Register. <i>Offset: -+ * B00h + (ep_num * 20h) + 10h</i> */ -+ volatile uint32_t doeptsiz; -+ /** Device OUT Endpoint DMA Address Register. <i>Offset:B00h -+ * + (ep_num * 20h) + 14h</i> */ -+ volatile uint32_t doepdma; -+ /** Reserved. <i>Offset:B00h + * (ep_num * 20h) + 1Ch</i> */ -+ uint32_t unused; -+ /** Device OUT Endpoint DMA Buffer Register. <i>Offset:B00h -+ * + (ep_num * 20h) + 1Ch</i> */ -+ uint32_t doepdmab; -+} dwc_otg_dev_out_ep_regs_t; -+ -+/** -+ * This union represents the bit fields in the Device EP Control -+ * Register. Read the register into the <i>d32</i> member then -+ * set/clear the bits using the <i>b</i>it elements. -+ */ -+typedef union depctl_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** Maximum Packet Size -+ * IN/OUT EPn -+ * IN/OUT EP0 - 2 bits -+ * 2'b00: 64 Bytes -+ * 2'b01: 32 -+ * 2'b10: 16 -+ * 2'b11: 8 */ -+ unsigned mps : 11; -+#define DWC_DEP0CTL_MPS_64 0 -+#define DWC_DEP0CTL_MPS_32 1 -+#define DWC_DEP0CTL_MPS_16 2 -+#define DWC_DEP0CTL_MPS_8 3 -+ -+ /** Next Endpoint -+ * IN EPn/IN EP0 -+ * OUT EPn/OUT EP0 - reserved */ -+ unsigned nextep : 4; -+ -+ /** USB Active Endpoint */ -+ unsigned usbactep : 1; -+ -+ /** Endpoint DPID (INTR/Bulk IN and OUT endpoints) -+ * This field contains the PID of the packet going to -+ * be received or transmitted on this endpoint. The -+ * application should program the PID of the first -+ * packet going to be received or transmitted on this -+ * endpoint , after the endpoint is -+ * activated. Application use the SetD1PID and -+ * SetD0PID fields of this register to program either -+ * D0 or D1 PID. -+ * -+ * The encoding for this field is -+ * - 0: D0 -+ * - 1: D1 -+ */ -+ unsigned dpid : 1; -+ -+ /** NAK Status */ -+ unsigned naksts : 1; -+ -+ /** Endpoint Type -+ * 2'b00: Control -+ * 2'b01: Isochronous -+ * 2'b10: Bulk -+ * 2'b11: Interrupt */ -+ unsigned eptype : 2; -+ -+ /** Snoop Mode -+ * OUT EPn/OUT EP0 -+ * IN EPn/IN EP0 - reserved */ -+ unsigned snp : 1; -+ -+ /** Stall Handshake */ -+ unsigned stall : 1; -+ -+ /** Tx Fifo Number -+ * IN EPn/IN EP0 -+ * OUT EPn/OUT EP0 - reserved */ -+ unsigned txfnum : 4; -+ -+ /** Clear NAK */ -+ unsigned cnak : 1; -+ /** Set NAK */ -+ unsigned snak : 1; -+ /** Set DATA0 PID (INTR/Bulk IN and OUT endpoints) -+ * Writing to this field sets the Endpoint DPID (DPID) -+ * field in this register to DATA0. Set Even -+ * (micro)frame (SetEvenFr) (ISO IN and OUT Endpoints) -+ * Writing to this field sets the Even/Odd -+ * (micro)frame (EO_FrNum) field to even (micro) -+ * frame. -+ */ -+ unsigned setd0pid : 1; -+ /** Set DATA1 PID (INTR/Bulk IN and OUT endpoints) -+ * Writing to this field sets the Endpoint DPID (DPID) -+ * field in this register to DATA1 Set Odd -+ * (micro)frame (SetOddFr) (ISO IN and OUT Endpoints) -+ * Writing to this field sets the Even/Odd -+ * (micro)frame (EO_FrNum) field to odd (micro) frame. -+ */ -+ unsigned setd1pid : 1; -+ /** Endpoint Disable */ -+ unsigned epdis : 1; -+ /** Endpoint Enable */ -+ unsigned epena : 1; -+ } b; -+} depctl_data_t; -+ -+/** -+ * This union represents the bit fields in the Device EP Transfer -+ * Size Register. Read the register into the <i>d32</i> member then -+ * set/clear the bits using the <i>b</i>it elements. -+ */ -+typedef union deptsiz_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct { -+ /** Transfer size */ -+ unsigned xfersize : 19; -+ /** Packet Count */ -+ unsigned pktcnt : 10; -+ /** Multi Count - Periodic IN endpoints */ -+ unsigned mc : 2; -+ unsigned reserved : 1; -+ } b; -+} deptsiz_data_t; -+ -+/** -+ * This union represents the bit fields in the Device EP 0 Transfer -+ * Size Register. Read the register into the <i>d32</i> member then -+ * set/clear the bits using the <i>b</i>it elements. -+ */ -+typedef union deptsiz0_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct { -+ /** Transfer size */ -+ unsigned xfersize : 7; -+ /** Reserved */ -+ unsigned reserved7_18 : 12; -+ /** Packet Count */ -+ unsigned pktcnt : 1; -+ /** Reserved */ -+ unsigned reserved20_28 : 9; -+ /**Setup Packet Count (DOEPTSIZ0 Only) */ -+ unsigned supcnt : 2; -+ unsigned reserved31; -+ } b; -+} deptsiz0_data_t; -+ -+ -+///////////////////////////////////////////////// -+// DMA Descriptor Specific Structures -+// -+ -+/** Buffer status definitions */ -+ -+#define BS_HOST_READY 0x0 -+#define BS_DMA_BUSY 0x1 -+#define BS_DMA_DONE 0x2 -+#define BS_HOST_BUSY 0x3 -+ -+/** Receive/Transmit status definitions */ -+ -+#define RTS_SUCCESS 0x0 -+#define RTS_BUFFLUSH 0x1 -+#define RTS_RESERVED 0x2 -+#define RTS_BUFERR 0x3 -+ -+ -+/** -+ * This union represents the bit fields in the DMA Descriptor -+ * status quadlet. Read the quadlet into the <i>d32</i> member then -+ * set/clear the bits using the <i>b</i>it, <i>b_iso_out</i> and -+ * <i>b_iso_in</i> elements. -+ */ -+typedef union desc_sts_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** quadlet bits */ -+ struct { -+ /** Received number of bytes */ -+ unsigned bytes : 16; -+ -+ unsigned reserved16_22 : 7; -+ /** Multiple Transfer - only for OUT EPs */ -+ unsigned mtrf : 1; -+ /** Setup Packet received - only for OUT EPs */ -+ unsigned sr : 1; -+ /** Interrupt On Complete */ -+ unsigned ioc : 1; -+ /** Short Packet */ -+ unsigned sp : 1; -+ /** Last */ -+ unsigned l : 1; -+ /** Receive Status */ -+ unsigned sts : 2; -+ /** Buffer Status */ -+ unsigned bs : 2; -+ } b; -+ -+#ifdef DWC_EN_ISOC -+ /** iso out quadlet bits */ -+ struct { -+ /** Received number of bytes */ -+ unsigned rxbytes : 11; -+ -+ unsigned reserved11 : 1; -+ /** Frame Number */ -+ unsigned framenum : 11; -+ /** Received ISO Data PID */ -+ unsigned pid : 2; -+ /** Interrupt On Complete */ -+ unsigned ioc : 1; -+ /** Short Packet */ -+ unsigned sp : 1; -+ /** Last */ -+ unsigned l : 1; -+ /** Receive Status */ -+ unsigned rxsts : 2; -+ /** Buffer Status */ -+ unsigned bs : 2; -+ } b_iso_out; -+ -+ /** iso in quadlet bits */ -+ struct { -+ /** Transmited number of bytes */ -+ unsigned txbytes : 12; -+ /** Frame Number */ -+ unsigned framenum : 11; -+ /** Transmited ISO Data PID */ -+ unsigned pid : 2; -+ /** Interrupt On Complete */ -+ unsigned ioc : 1; -+ /** Short Packet */ -+ unsigned sp : 1; -+ /** Last */ -+ unsigned l : 1; -+ /** Transmit Status */ -+ unsigned txsts : 2; -+ /** Buffer Status */ -+ unsigned bs : 2; -+ } b_iso_in; -+#endif //DWC_EN_ISOC -+} desc_sts_data_t; -+ -+/** -+ * DMA Descriptor structure -+ * -+ * DMA Descriptor structure contains two quadlets: -+ * Status quadlet and Data buffer pointer. -+ */ -+typedef struct dwc_otg_dma_desc -+{ -+ /** DMA Descriptor status quadlet */ -+ desc_sts_data_t status; -+ /** DMA Descriptor data buffer pointer */ -+ dma_addr_t buf; -+} dwc_otg_dma_desc_t; -+ -+/** -+ * The dwc_otg_dev_if structure contains information needed to manage -+ * the DWC_otg controller acting in device mode. It represents the -+ * programming view of the device-specific aspects of the controller. -+ */ -+typedef struct dwc_otg_dev_if -+{ -+ /** Pointer to device Global registers. -+ * Device Global Registers starting at offset 800h -+ */ -+ dwc_otg_device_global_regs_t *dev_global_regs; -+#define DWC_DEV_GLOBAL_REG_OFFSET 0x800 -+ -+ /** -+ * Device Logical IN Endpoint-Specific Registers 900h-AFCh -+ */ -+ dwc_otg_dev_in_ep_regs_t *in_ep_regs[MAX_EPS_CHANNELS]; -+#define DWC_DEV_IN_EP_REG_OFFSET 0x900 -+#define DWC_EP_REG_OFFSET 0x20 -+ -+ /** Device Logical OUT Endpoint-Specific Registers B00h-CFCh */ -+ dwc_otg_dev_out_ep_regs_t *out_ep_regs[MAX_EPS_CHANNELS]; -+#define DWC_DEV_OUT_EP_REG_OFFSET 0xB00 -+ -+ /* Device configuration information*/ -+ uint8_t speed; /**< Device Speed 0: Unknown, 1: LS, 2:FS, 3: HS */ -+ uint8_t num_in_eps; /**< Number # of Tx EP range: 0-15 exept ep0 */ -+ uint8_t num_out_eps; /**< Number # of Rx EP range: 0-15 exept ep 0*/ -+ -+ /** Size of periodic FIFOs (Bytes) */ -+ uint16_t perio_tx_fifo_size[MAX_PERIO_FIFOS]; -+ -+ /** Size of Tx FIFOs (Bytes) */ -+ uint16_t tx_fifo_size[MAX_TX_FIFOS]; -+ -+ /** Thresholding enable flags and length varaiables **/ -+ uint16_t rx_thr_en; -+ uint16_t iso_tx_thr_en; -+ uint16_t non_iso_tx_thr_en; -+ -+ uint16_t rx_thr_length; -+ uint16_t tx_thr_length; -+ -+ /** -+ * Pointers to the DMA Descriptors for EP0 Control -+ * transfers (virtual and physical) -+ */ -+ /** 2 descriptors for SETUP packets */ -+ uint32_t dma_setup_desc_addr[2]; -+ dwc_otg_dma_desc_t* setup_desc_addr[2]; -+ -+ /** Pointer to Descriptor with latest SETUP packet */ -+ dwc_otg_dma_desc_t* psetup; -+ -+ /** Index of current SETUP handler descriptor */ -+ uint32_t setup_desc_index; -+ -+ /** Descriptor for Data In or Status In phases */ -+ uint32_t dma_in_desc_addr; -+ dwc_otg_dma_desc_t* in_desc_addr;; -+ -+ /** Descriptor for Data Out or Status Out phases */ -+ uint32_t dma_out_desc_addr; -+ dwc_otg_dma_desc_t* out_desc_addr; -+} dwc_otg_dev_if_t; -+ -+ -+ -+ -+///////////////////////////////////////////////// -+// Host Mode Register Structures -+// -+/** -+ * The Host Global Registers structure defines the size and relative -+ * field offsets for the Host Mode Global Registers. Host Global -+ * Registers offsets 400h-7FFh. -+*/ -+typedef struct dwc_otg_host_global_regs -+{ -+ /** Host Configuration Register. <i>Offset: 400h</i> */ -+ volatile uint32_t hcfg; -+ /** Host Frame Interval Register. <i>Offset: 404h</i> */ -+ volatile uint32_t hfir; -+ /** Host Frame Number / Frame Remaining Register. <i>Offset: 408h</i> */ -+ volatile uint32_t hfnum; -+ /** Reserved. <i>Offset: 40Ch</i> */ -+ uint32_t reserved40C; -+ /** Host Periodic Transmit FIFO/ Queue Status Register. <i>Offset: 410h</i> */ -+ volatile uint32_t hptxsts; -+ /** Host All Channels Interrupt Register. <i>Offset: 414h</i> */ -+ volatile uint32_t haint; -+ /** Host All Channels Interrupt Mask Register. <i>Offset: 418h</i> */ -+ volatile uint32_t haintmsk; -+} dwc_otg_host_global_regs_t; -+ -+/** -+ * This union represents the bit fields in the Host Configuration Register. -+ * Read the register into the <i>d32</i> member then set/clear the bits using -+ * the <i>b</i>it elements. Write the <i>d32</i> member to the hcfg register. -+ */ -+typedef union hcfg_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ -+ /** register bits */ -+ struct -+ { -+ /** FS/LS Phy Clock Select */ -+ unsigned fslspclksel : 2; -+#define DWC_HCFG_30_60_MHZ 0 -+#define DWC_HCFG_48_MHZ 1 -+#define DWC_HCFG_6_MHZ 2 -+ -+ /** FS/LS Only Support */ -+ unsigned fslssupp : 1; -+ } b; -+} hcfg_data_t; -+ -+/** -+ * This union represents the bit fields in the Host Frame Remaing/Number -+ * Register. -+ */ -+typedef union hfir_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ -+ /** register bits */ -+ struct -+ { -+ unsigned frint : 16; -+ unsigned reserved : 16; -+ } b; -+} hfir_data_t; -+ -+/** -+ * This union represents the bit fields in the Host Frame Remaing/Number -+ * Register. -+ */ -+typedef union hfnum_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ -+ /** register bits */ -+ struct -+ { -+ unsigned frnum : 16; -+#define DWC_HFNUM_MAX_FRNUM 0x3FFF -+ unsigned frrem : 16; -+ } b; -+} hfnum_data_t; -+ -+typedef union hptxsts_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ -+ /** register bits */ -+ struct -+ { -+ unsigned ptxfspcavail : 16; -+ unsigned ptxqspcavail : 8; -+ /** Top of the Periodic Transmit Request Queue -+ * - bit 24 - Terminate (last entry for the selected channel) -+ * - bits 26:25 - Token Type -+ * - 2'b00 - Zero length -+ * - 2'b01 - Ping -+ * - 2'b10 - Disable -+ * - bits 30:27 - Channel Number -+ * - bit 31 - Odd/even microframe -+ */ -+ unsigned ptxqtop_terminate : 1; -+ unsigned ptxqtop_token : 2; -+ unsigned ptxqtop_chnum : 4; -+ unsigned ptxqtop_odd : 1; -+ } b; -+} hptxsts_data_t; -+ -+/** -+ * This union represents the bit fields in the Host Port Control and Status -+ * Register. Read the register into the <i>d32</i> member then set/clear the -+ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the -+ * hprt0 register. -+ */ -+typedef union hprt0_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned prtconnsts : 1; -+ unsigned prtconndet : 1; -+ unsigned prtena : 1; -+ unsigned prtenchng : 1; -+ unsigned prtovrcurract : 1; -+ unsigned prtovrcurrchng : 1; -+ unsigned prtres : 1; -+ unsigned prtsusp : 1; -+ unsigned prtrst : 1; -+ unsigned reserved9 : 1; -+ unsigned prtlnsts : 2; -+ unsigned prtpwr : 1; -+ unsigned prttstctl : 4; -+ unsigned prtspd : 2; -+#define DWC_HPRT0_PRTSPD_HIGH_SPEED 0 -+#define DWC_HPRT0_PRTSPD_FULL_SPEED 1 -+#define DWC_HPRT0_PRTSPD_LOW_SPEED 2 -+ unsigned reserved19_31 : 13; -+ } b; -+} hprt0_data_t; -+ -+/** -+ * This union represents the bit fields in the Host All Interrupt -+ * Register. -+ */ -+typedef union haint_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned ch0 : 1; -+ unsigned ch1 : 1; -+ unsigned ch2 : 1; -+ unsigned ch3 : 1; -+ unsigned ch4 : 1; -+ unsigned ch5 : 1; -+ unsigned ch6 : 1; -+ unsigned ch7 : 1; -+ unsigned ch8 : 1; -+ unsigned ch9 : 1; -+ unsigned ch10 : 1; -+ unsigned ch11 : 1; -+ unsigned ch12 : 1; -+ unsigned ch13 : 1; -+ unsigned ch14 : 1; -+ unsigned ch15 : 1; -+ unsigned reserved : 16; -+ } b; -+ -+ struct -+ { -+ unsigned chint : 16; -+ unsigned reserved : 16; -+ } b2; -+} haint_data_t; -+ -+/** -+ * This union represents the bit fields in the Host All Interrupt -+ * Register. -+ */ -+typedef union haintmsk_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ unsigned ch0 : 1; -+ unsigned ch1 : 1; -+ unsigned ch2 : 1; -+ unsigned ch3 : 1; -+ unsigned ch4 : 1; -+ unsigned ch5 : 1; -+ unsigned ch6 : 1; -+ unsigned ch7 : 1; -+ unsigned ch8 : 1; -+ unsigned ch9 : 1; -+ unsigned ch10 : 1; -+ unsigned ch11 : 1; -+ unsigned ch12 : 1; -+ unsigned ch13 : 1; -+ unsigned ch14 : 1; -+ unsigned ch15 : 1; -+ unsigned reserved : 16; -+ } b; -+ -+ struct -+ { -+ unsigned chint : 16; -+ unsigned reserved : 16; -+ } b2; -+} haintmsk_data_t; -+ -+/** -+ * Host Channel Specific Registers. <i>500h-5FCh</i> -+ */ -+typedef struct dwc_otg_hc_regs -+{ -+ /** Host Channel 0 Characteristic Register. <i>Offset: 500h + (chan_num * 20h) + 00h</i> */ -+ volatile uint32_t hcchar; -+ /** Host Channel 0 Split Control Register. <i>Offset: 500h + (chan_num * 20h) + 04h</i> */ -+ volatile uint32_t hcsplt; -+ /** Host Channel 0 Interrupt Register. <i>Offset: 500h + (chan_num * 20h) + 08h</i> */ -+ volatile uint32_t hcint; -+ /** Host Channel 0 Interrupt Mask Register. <i>Offset: 500h + (chan_num * 20h) + 0Ch</i> */ -+ volatile uint32_t hcintmsk; -+ /** Host Channel 0 Transfer Size Register. <i>Offset: 500h + (chan_num * 20h) + 10h</i> */ -+ volatile uint32_t hctsiz; -+ /** Host Channel 0 DMA Address Register. <i>Offset: 500h + (chan_num * 20h) + 14h</i> */ -+ volatile uint32_t hcdma; -+ /** Reserved. <i>Offset: 500h + (chan_num * 20h) + 18h - 500h + (chan_num * 20h) + 1Ch</i> */ -+ uint32_t reserved[2]; -+} dwc_otg_hc_regs_t; -+ -+/** -+ * This union represents the bit fields in the Host Channel Characteristics -+ * Register. Read the register into the <i>d32</i> member then set/clear the -+ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the -+ * hcchar register. -+ */ -+typedef union hcchar_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ -+ /** register bits */ -+ struct -+ { -+ /** Maximum packet size in bytes */ -+ unsigned mps : 11; -+ -+ /** Endpoint number */ -+ unsigned epnum : 4; -+ -+ /** 0: OUT, 1: IN */ -+ unsigned epdir : 1; -+ -+ unsigned reserved : 1; -+ -+ /** 0: Full/high speed device, 1: Low speed device */ -+ unsigned lspddev : 1; -+ -+ /** 0: Control, 1: Isoc, 2: Bulk, 3: Intr */ -+ unsigned eptype : 2; -+ -+ /** Packets per frame for periodic transfers. 0 is reserved. */ -+ unsigned multicnt : 2; -+ -+ /** Device address */ -+ unsigned devaddr : 7; -+ -+ /** -+ * Frame to transmit periodic transaction. -+ * 0: even, 1: odd -+ */ -+ unsigned oddfrm : 1; -+ -+ /** Channel disable */ -+ unsigned chdis : 1; -+ -+ /** Channel enable */ -+ unsigned chen : 1; -+ } b; -+} hcchar_data_t; -+ -+typedef union hcsplt_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ -+ /** register bits */ -+ struct -+ { -+ /** Port Address */ -+ unsigned prtaddr : 7; -+ -+ /** Hub Address */ -+ unsigned hubaddr : 7; -+ -+ /** Transaction Position */ -+ unsigned xactpos : 2; -+#define DWC_HCSPLIT_XACTPOS_MID 0 -+#define DWC_HCSPLIT_XACTPOS_END 1 -+#define DWC_HCSPLIT_XACTPOS_BEGIN 2 -+#define DWC_HCSPLIT_XACTPOS_ALL 3 -+ -+ /** Do Complete Split */ -+ unsigned compsplt : 1; -+ -+ /** Reserved */ -+ unsigned reserved : 14; -+ -+ /** Split Enble */ -+ unsigned spltena : 1; -+ } b; -+} hcsplt_data_t; -+ -+ -+/** -+ * This union represents the bit fields in the Host All Interrupt -+ * Register. -+ */ -+typedef union hcint_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ /** register bits */ -+ struct -+ { -+ /** Transfer Complete */ -+ unsigned xfercomp : 1; -+ /** Channel Halted */ -+ unsigned chhltd : 1; -+ /** AHB Error */ -+ unsigned ahberr : 1; -+ /** STALL Response Received */ -+ unsigned stall : 1; -+ /** NAK Response Received */ -+ unsigned nak : 1; -+ /** ACK Response Received */ -+ unsigned ack : 1; -+ /** NYET Response Received */ -+ unsigned nyet : 1; -+ /** Transaction Err */ -+ unsigned xacterr : 1; -+ /** Babble Error */ -+ unsigned bblerr : 1; -+ /** Frame Overrun */ -+ unsigned frmovrun : 1; -+ /** Data Toggle Error */ -+ unsigned datatglerr : 1; -+ /** Reserved */ -+ unsigned reserved : 21; -+ } b; -+} hcint_data_t; -+ -+/** -+ * This union represents the bit fields in the Host Channel Transfer Size -+ * Register. Read the register into the <i>d32</i> member then set/clear the -+ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the -+ * hcchar register. -+ */ -+typedef union hctsiz_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ -+ /** register bits */ -+ struct -+ { -+ /** Total transfer size in bytes */ -+ unsigned xfersize : 19; -+ -+ /** Data packets to transfer */ -+ unsigned pktcnt : 10; -+ -+ /** -+ * Packet ID for next data packet -+ * 0: DATA0 -+ * 1: DATA2 -+ * 2: DATA1 -+ * 3: MDATA (non-Control), SETUP (Control) -+ */ -+ unsigned pid : 2; -+#define DWC_HCTSIZ_DATA0 0 -+#define DWC_HCTSIZ_DATA1 2 -+#define DWC_HCTSIZ_DATA2 1 -+#define DWC_HCTSIZ_MDATA 3 -+#define DWC_HCTSIZ_SETUP 3 -+ -+ /** Do PING protocol when 1 */ -+ unsigned dopng : 1; -+ } b; -+} hctsiz_data_t; -+ -+/** -+ * This union represents the bit fields in the Host Channel Interrupt Mask -+ * Register. Read the register into the <i>d32</i> member then set/clear the -+ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the -+ * hcintmsk register. -+ */ -+typedef union hcintmsk_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ -+ /** register bits */ -+ struct -+ { -+ unsigned xfercompl : 1; -+ unsigned chhltd : 1; -+ unsigned ahberr : 1; -+ unsigned stall : 1; -+ unsigned nak : 1; -+ unsigned ack : 1; -+ unsigned nyet : 1; -+ unsigned xacterr : 1; -+ unsigned bblerr : 1; -+ unsigned frmovrun : 1; -+ unsigned datatglerr : 1; -+ unsigned reserved : 21; -+ } b; -+} hcintmsk_data_t; -+ -+/** OTG Host Interface Structure. -+ * -+ * The OTG Host Interface Structure structure contains information -+ * needed to manage the DWC_otg controller acting in host mode. It -+ * represents the programming view of the host-specific aspects of the -+ * controller. -+ */ -+typedef struct dwc_otg_host_if -+{ -+ /** Host Global Registers starting at offset 400h.*/ -+ dwc_otg_host_global_regs_t *host_global_regs; -+#define DWC_OTG_HOST_GLOBAL_REG_OFFSET 0x400 -+ -+ /** Host Port 0 Control and Status Register */ -+ volatile uint32_t *hprt0; -+#define DWC_OTG_HOST_PORT_REGS_OFFSET 0x440 -+ -+ /** Host Channel Specific Registers at offsets 500h-5FCh. */ -+ dwc_otg_hc_regs_t *hc_regs[MAX_EPS_CHANNELS]; -+#define DWC_OTG_HOST_CHAN_REGS_OFFSET 0x500 -+#define DWC_OTG_CHAN_REGS_OFFSET 0x20 -+ -+ -+ /* Host configuration information */ -+ /** Number of Host Channels (range: 1-16) */ -+ uint8_t num_host_channels; -+ /** Periodic EPs supported (0: no, 1: yes) */ -+ uint8_t perio_eps_supported; -+ /** Periodic Tx FIFO Size (Only 1 host periodic Tx FIFO) */ -+ uint16_t perio_tx_fifo_size; -+} dwc_otg_host_if_t; -+ -+ -+/** -+ * This union represents the bit fields in the Power and Clock Gating Control -+ * Register. Read the register into the <i>d32</i> member then set/clear the -+ * bits using the <i>b</i>it elements. -+ */ -+typedef union pcgcctl_data -+{ -+ /** raw register data */ -+ uint32_t d32; -+ -+ /** register bits */ -+ struct -+ { -+ /** Stop Pclk */ -+ unsigned stoppclk : 1; -+ /** Gate Hclk */ -+ unsigned gatehclk : 1; -+ /** Power Clamp */ -+ unsigned pwrclmp : 1; -+ /** Reset Power Down Modules */ -+ unsigned rstpdwnmodule : 1; -+ /** PHY Suspended */ -+ unsigned physuspended : 1; -+ unsigned reserved : 27; -+ } b; -+} pcgcctl_data_t; -+ -+ -+#endif ---- a/drivers/usb/core/urb.c -+++ b/drivers/usb/core/urb.c -@@ -17,7 +17,11 @@ static void urb_destroy(struct kref *kre - - if (urb->transfer_flags & URB_FREE_BUFFER) - kfree(urb->transfer_buffer); -- -+ if (urb->aligned_transfer_buffer) { -+ kfree(urb->aligned_transfer_buffer); -+ urb->aligned_transfer_buffer = 0; -+ urb->aligned_transfer_dma = 0; -+ } - kfree(urb); - } - ---- a/include/linux/usb.h -+++ b/include/linux/usb.h -@@ -1234,6 +1234,9 @@ struct urb { - unsigned int transfer_flags; /* (in) URB_SHORT_NOT_OK | ...*/ - void *transfer_buffer; /* (in) associated data buffer */ - dma_addr_t transfer_dma; /* (in) dma addr for transfer_buffer */ -+ void *aligned_transfer_buffer; /* (in) associeated data buffer */ -+ dma_addr_t aligned_transfer_dma;/* (in) dma addr for transfer_buffer */ -+ u32 aligned_transfer_buffer_length; /* (in) data buffer length */ - struct scatterlist *sg; /* (in) scatter gather buffer list */ - int num_mapped_sgs; /* (internal) mapped sg entries */ - int num_sgs; /* (in) number of entries in the sg list */ ---- a/drivers/usb/gadget/Kconfig -+++ b/drivers/usb/gadget/Kconfig -@@ -125,6 +125,7 @@ config USB_GADGET_STORAGE_NUM_BUFFERS - # - choice - prompt "USB Peripheral Controller" -+ depends on !USB_DWC_OTG - help - A USB device uses a controller to talk to its host. - Systems should have only one such upstream link. -@@ -616,7 +617,7 @@ config USB_ETH - help - This driver implements Ethernet style communication, in one of - several ways: -- -+ - - The "Communication Device Class" (CDC) Ethernet Control Model. - That protocol is often avoided with pure Ethernet adapters, in - favor of simpler vendor-specific hardware, but is widely -@@ -656,7 +657,7 @@ config USB_ETH_RNDIS - If you say "y" here, the Ethernet gadget driver will try to provide - a second device configuration, supporting RNDIS to talk to such - Microsoft USB hosts. -- -+ - To make MS-Windows work with this, use Documentation/usb/linux.inf - as the "driver info file". For versions of MS-Windows older than - XP, you'll need to download drivers from Microsoft's website; a URL ---- a/drivers/usb/gadget/Makefile -+++ b/drivers/usb/gadget/Makefile -@@ -3,7 +3,7 @@ - # - ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG - --obj-$(CONFIG_USB_GADGET) += udc-core.o -+#obj-$(CONFIG_USB_GADGET) += udc-core.o - obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o - obj-$(CONFIG_USB_NET2272) += net2272.o - obj-$(CONFIG_USB_NET2280) += net2280.o diff --git a/target/linux/cns3xxx/patches-3.3/800-cns3xxx-dwc_otg.patch b/target/linux/cns3xxx/patches-3.3/800-cns3xxx-dwc_otg.patch new file mode 100644 index 0000000000..ce15f7ccd8 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.3/800-cns3xxx-dwc_otg.patch @@ -0,0 +1,69 @@ +--- a/drivers/Makefile ++++ b/drivers/Makefile +@@ -71,6 +71,7 @@ obj-$(CONFIG_PARIDE) += block/paride/ + obj-$(CONFIG_TC) += tc/ + obj-$(CONFIG_UWB) += uwb/ + obj-$(CONFIG_USB_OTG_UTILS) += usb/ ++obj-$(CONFIG_USB_DWC_OTG) += usb/dwc/ + obj-$(CONFIG_USB) += usb/ + obj-$(CONFIG_PCI) += usb/ + obj-$(CONFIG_USB_GADGET) += usb/ +--- a/drivers/usb/Kconfig ++++ b/drivers/usb/Kconfig +@@ -134,6 +134,8 @@ source "drivers/usb/musb/Kconfig" + + source "drivers/usb/renesas_usbhs/Kconfig" + ++source "drivers/usb/dwc/Kconfig" ++ + source "drivers/usb/class/Kconfig" + + source "drivers/usb/storage/Kconfig" +--- a/drivers/usb/core/urb.c ++++ b/drivers/usb/core/urb.c +@@ -17,7 +17,11 @@ static void urb_destroy(struct kref *kre + + if (urb->transfer_flags & URB_FREE_BUFFER) + kfree(urb->transfer_buffer); +- ++ if (urb->aligned_transfer_buffer) { ++ kfree(urb->aligned_transfer_buffer); ++ urb->aligned_transfer_buffer = 0; ++ urb->aligned_transfer_dma = 0; ++ } + kfree(urb); + } + +--- a/include/linux/usb.h ++++ b/include/linux/usb.h +@@ -1234,6 +1234,9 @@ struct urb { + unsigned int transfer_flags; /* (in) URB_SHORT_NOT_OK | ...*/ + void *transfer_buffer; /* (in) associated data buffer */ + dma_addr_t transfer_dma; /* (in) dma addr for transfer_buffer */ ++ void *aligned_transfer_buffer; /* (in) associeated data buffer */ ++ dma_addr_t aligned_transfer_dma;/* (in) dma addr for transfer_buffer */ ++ u32 aligned_transfer_buffer_length; /* (in) data buffer length */ + struct scatterlist *sg; /* (in) scatter gather buffer list */ + int num_mapped_sgs; /* (internal) mapped sg entries */ + int num_sgs; /* (in) number of entries in the sg list */ +--- a/drivers/usb/gadget/Kconfig ++++ b/drivers/usb/gadget/Kconfig +@@ -125,6 +125,7 @@ config USB_GADGET_STORAGE_NUM_BUFFERS + # + choice + prompt "USB Peripheral Controller" ++ depends on !USB_DWC_OTG + help + A USB device uses a controller to talk to its host. + Systems should have only one such upstream link. +--- a/drivers/usb/gadget/Makefile ++++ b/drivers/usb/gadget/Makefile +@@ -3,7 +3,7 @@ + # + ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG + +-obj-$(CONFIG_USB_GADGET) += udc-core.o ++#obj-$(CONFIG_USB_GADGET) += udc-core.o + obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o + obj-$(CONFIG_USB_NET2272) += net2272.o + obj-$(CONFIG_USB_NET2280) += net2280.o |