diff options
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.31/100-udc-poll-vbus.patch')
| -rw-r--r-- | target/linux/s3c24xx/patches-2.6.31/100-udc-poll-vbus.patch | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.31/100-udc-poll-vbus.patch b/target/linux/s3c24xx/patches-2.6.31/100-udc-poll-vbus.patch deleted file mode 100644 index 7b2b9b25ae..0000000000 --- a/target/linux/s3c24xx/patches-2.6.31/100-udc-poll-vbus.patch +++ /dev/null @@ -1,244 +0,0 @@ -From 6d17298d12f873a9b03e5e79ab745fda75bd5b4e Mon Sep 17 00:00:00 2001 -From: Lars-Peter Clausen <lars@metafoo.de> -Date: Tue, 21 Jul 2009 12:51:33 +0200 -Subject: [PATCH] 100-udc-poll-vbus.patch - ---- - arch/arm/plat-s3c24xx/include/plat/udc.h | 1 + - drivers/usb/gadget/s3c2410_udc.c | 38 ++++++++++++++++++++++ - drivers/usb/host/ohci-s3c2410.c | 50 ++++++++++++++++++++++++++++- - 3 files changed, 87 insertions(+), 2 deletions(-) - -diff --git a/arch/arm/plat-s3c24xx/include/plat/udc.h b/arch/arm/plat-s3c24xx/include/plat/udc.h -index 546bb40..763aeba 100644 ---- a/arch/arm/plat-s3c24xx/include/plat/udc.h -+++ b/arch/arm/plat-s3c24xx/include/plat/udc.h -@@ -27,6 +27,7 @@ enum s3c2410_udc_cmd_e { - struct s3c2410_udc_mach_info { - void (*udc_command)(enum s3c2410_udc_cmd_e); - void (*vbus_draw)(unsigned int ma); -+ int (*get_vbus_status)(void); - unsigned int vbus_pin; - unsigned char vbus_pin_inverted; - }; -diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c -index a9b452f..1c7e5d7 100644 ---- a/drivers/usb/gadget/s3c2410_udc.c -+++ b/drivers/usb/gadget/s3c2410_udc.c -@@ -73,6 +73,7 @@ static void __iomem *base_addr; - static u64 rsrc_start; - static u64 rsrc_len; - static struct dentry *s3c2410_udc_debugfs_root; -+static struct timer_list vbus_poll_timer; - - static inline u32 udc_read(u32 reg) - { -@@ -133,6 +134,8 @@ static int dprintk(int level, const char *fmt, ...) - return 0; - } - #endif -+ -+#ifdef CONFIG_USB_GADGET_DEBUG_FS - static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p) - { - u32 addr_reg,pwr_reg,ep_int_reg,usb_int_reg; -@@ -196,6 +199,7 @@ static const struct file_operations s3c2410_udc_debugfs_fops = { - .release = single_release, - .owner = THIS_MODULE, - }; -+#endif - - /* io macros */ - -@@ -842,6 +846,7 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep) - u32 ep_csr1; - u32 idx; - -+handle_ep_again: - if (likely (!list_empty(&ep->queue))) - req = list_entry(ep->queue.next, - struct s3c2410_request, queue); -@@ -881,6 +886,8 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep) - - if ((ep_csr1 & S3C2410_UDC_OCSR1_PKTRDY) && req) { - s3c2410_udc_read_fifo(ep,req); -+ if (s3c2410_udc_fifo_count_out()) -+ goto handle_ep_again; - } - } - } -@@ -1519,6 +1526,20 @@ static irqreturn_t s3c2410_udc_vbus_irq(int irq, void *_dev) - return IRQ_HANDLED; - } - -+static void s3c2410_udc_vbus_poll(unsigned long _data) -+{ -+ struct s3c2410_udc *data = (struct s3c2410_udc *)_data; -+ int v; -+ -+ dprintk(DEBUG_NORMAL, "%s()\n", __func__); -+ if (udc_info && udc_info->get_vbus_status) { -+ v = udc_info->get_vbus_status(); -+ if ((v > -1) && (v != data->vbus)) -+ s3c2410_udc_vbus_session(&data->gadget, v); -+ mod_timer(&vbus_poll_timer, jiffies + msecs_to_jiffies(900)); -+ } -+} -+ - static int s3c2410_vbus_draw(struct usb_gadget *_gadget, unsigned ma) - { - dprintk(DEBUG_NORMAL, "%s()\n", __func__); -@@ -1676,6 +1697,11 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) - goto register_error; - } - -+ if (udc_info && udc_info->get_vbus_status && !udc_info->vbus_pin) { -+ mod_timer(&vbus_poll_timer, jiffies + msecs_to_jiffies(50)); -+ return 0; /* just return, vbus change will enable udc */ -+ } -+ - /* Enable udc */ - s3c2410_udc_enable(udc); - -@@ -1706,6 +1732,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) - if (driver->disconnect) - driver->disconnect(&udc->gadget); - -+ driver->unbind(&udc->gadget); - device_del(&udc->gadget.dev); - udc->driver = NULL; - -@@ -1892,10 +1919,16 @@ static int s3c2410_udc_probe(struct platform_device *pdev) - } - - dev_dbg(dev, "got irq %i\n", irq); -+ } else if (udc_info && udc_info->get_vbus_status) { -+ udc->vbus = 0; -+ init_timer(&vbus_poll_timer); -+ vbus_poll_timer.function = s3c2410_udc_vbus_poll; -+ vbus_poll_timer.data = (unsigned long) udc; - } else { - udc->vbus = 1; - } - -+#ifdef CONFIG_USB_GADGET_DEBUG_FS - if (s3c2410_udc_debugfs_root) { - udc->regs_info = debugfs_create_file("registers", S_IRUGO, - s3c2410_udc_debugfs_root, -@@ -1903,6 +1936,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev) - if (!udc->regs_info) - dev_warn(dev, "debugfs file creation failed\n"); - } -+#endif - - dev_dbg(dev, "probe ok\n"); - -@@ -1938,6 +1972,8 @@ static int s3c2410_udc_remove(struct platform_device *pdev) - if (udc_info && udc_info->vbus_pin > 0) { - irq = gpio_to_irq(udc_info->vbus_pin); - free_irq(irq, udc); -+ } else if (udc_info && udc_info->get_vbus_status) { -+ del_timer_sync(&vbus_poll_timer); - } - - free_irq(IRQ_USBD, udc); -@@ -2012,12 +2048,14 @@ static int __init udc_init(void) - - dprintk(DEBUG_NORMAL, "%s: version %s\n", gadget_name, DRIVER_VERSION); - -+#ifdef CONFIG_USB_GADGET_DEBUG_FS - s3c2410_udc_debugfs_root = debugfs_create_dir(gadget_name, NULL); - if (IS_ERR(s3c2410_udc_debugfs_root)) { - printk(KERN_ERR "%s: debugfs dir creation failed %ld\n", - gadget_name, PTR_ERR(s3c2410_udc_debugfs_root)); - s3c2410_udc_debugfs_root = NULL; - } -+#endif - - retval = platform_driver_register(&udc_driver_2410); - if (retval) -diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c -index a68af2d..3b85d41 100644 ---- a/drivers/usb/host/ohci-s3c2410.c -+++ b/drivers/usb/host/ohci-s3c2410.c -@@ -21,6 +21,8 @@ - - #include <linux/platform_device.h> - #include <linux/clk.h> -+#include <mach/gpio-fns.h> -+#include <mach/regs-gpio.h> - #include <plat/usb-control.h> - - #define valid_port(idx) ((idx) == 1 || (idx) == 2) -@@ -306,6 +308,42 @@ static void s3c2410_hcd_oc(struct s3c2410_hcd_info *info, int port_oc) - local_irq_restore(flags); - } - -+/* switching of USB pads */ -+static ssize_t show_usb_mode(struct device *dev, struct device_attribute *attr, -+ char *buf) -+{ -+ if (__raw_readl(S3C24XX_MISCCR) & S3C2410_MISCCR_USBHOST) -+ return sprintf(buf, "host\n"); -+ -+ return sprintf(buf, "device\n"); -+} -+ -+static ssize_t set_usb_mode(struct device *dev, struct device_attribute *attr, -+ const char *buf, size_t count) -+{ -+ if (!strncmp(buf, "host", 4)) { -+ printk(KERN_WARNING "s3c2410: changing usb to host\n"); -+ s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST, -+ S3C2410_MISCCR_USBHOST); -+ /* FIXME: -+ * - call machine-specific disable-pullup function i -+ * - enable +Vbus (if hardware supports it) -+ */ -+ s3c2410_gpio_setpin(S3C2410_GPB(9), 0); -+ } else if (!strncmp(buf, "device", 6)) { -+ printk(KERN_WARNING "s3c2410: changing usb to device\n"); -+ s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST, 0); -+ s3c2410_gpio_setpin(S3C2410_GPB(9), 1); -+ } else { -+ printk(KERN_WARNING "s3c2410: unknown mode\n"); -+ return -EINVAL; -+ } -+ -+ return count; -+} -+ -+static DEVICE_ATTR(usb_mode, S_IRUGO | S_IWUSR, show_usb_mode, set_usb_mode); -+ - /* may be called without controller electrically present */ - /* may be called with controller, bus, and devices active */ - -@@ -486,15 +524,23 @@ static int ohci_hcd_s3c2410_drv_remove(struct platform_device *pdev) - return 0; - } - -+static int ohci_hcd_s3c2410_drv_resume(struct platform_device *pdev) -+{ -+ struct usb_hcd *hcd = platform_get_drvdata(pdev); -+ -+ ohci_finish_controller_resume(hcd); -+ return 0; -+} -+ - static struct platform_driver ohci_hcd_s3c2410_driver = { - .probe = ohci_hcd_s3c2410_drv_probe, - .remove = ohci_hcd_s3c2410_drv_remove, - .shutdown = usb_hcd_platform_shutdown, - /*.suspend = ohci_hcd_s3c2410_drv_suspend, */ -- /*.resume = ohci_hcd_s3c2410_drv_resume, */ -+ .resume = ohci_hcd_s3c2410_drv_resume, - .driver = { - .owner = THIS_MODULE, -- .name = "s3c2410-ohci", -+ .name = "s3c-ohci", - }, - }; - --- -1.5.6.5 - |