diff options
Diffstat (limited to 'package/kernel/spi-ks8995')
| -rw-r--r-- | package/kernel/spi-ks8995/Makefile | 54 | ||||
| -rw-r--r-- | package/kernel/spi-ks8995/src/Kconfig | 3 | ||||
| -rw-r--r-- | package/kernel/spi-ks8995/src/Makefile | 1 | ||||
| -rw-r--r-- | package/kernel/spi-ks8995/src/spi_ks8995.c | 419 |
4 files changed, 0 insertions, 477 deletions
diff --git a/package/kernel/spi-ks8995/Makefile b/package/kernel/spi-ks8995/Makefile deleted file mode 100644 index 0be9fe3dc6..0000000000 --- a/package/kernel/spi-ks8995/Makefile +++ /dev/null @@ -1,54 +0,0 @@ -# -# Copyright (C) 2008 OpenWrt.org -# -# This is free software, licensed under the GNU General Public License v2. -# See /LICENSE for more information. -# - -include $(TOPDIR)/rules.mk -include $(INCLUDE_DIR)/kernel.mk - -PKG_NAME:=spi-ks8995 -PKG_RELEASE:=1 - -include $(INCLUDE_DIR)/package.mk - -define KernelPackage/spi-ks8995 - SUBMENU:=SPI Support - TITLE:=Micrel/Kendin KS8995 Ethernet switch control - FILES:=$(PKG_BUILD_DIR)/spi_ks8995.ko - KCONFIG:=CONFIG_SPI=y \ - CONFIG_SPI_MASTER=y - AUTOLOAD:=$(call AutoLoad,50,spi_ks8995) -endef - -define KernelPackage/spi-ks8995/description - Kernel module for Micrel/Kendin KS8995 ethernet switch -endef - -EXTRA_KCONFIG:= \ - CONFIG_SPI_KS8995=m - -EXTRA_CFLAGS:= \ - $(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=m,%,$(filter %=m,$(EXTRA_KCONFIG)))) \ - $(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=y,%,$(filter %=y,$(EXTRA_KCONFIG)))) \ - -MAKE_OPTS:= \ - ARCH="$(LINUX_KARCH)" \ - CROSS_COMPILE="$(TARGET_CROSS)" \ - SUBDIRS="$(PKG_BUILD_DIR)" \ - EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \ - $(EXTRA_KCONFIG) - -define Build/Prepare - mkdir -p $(PKG_BUILD_DIR) - $(CP) ./src/* $(PKG_BUILD_DIR)/ -endef - -define Build/Compile - $(MAKE) -C "$(LINUX_DIR)" \ - $(MAKE_OPTS) \ - modules -endef - -$(eval $(call KernelPackage,spi-ks8995)) diff --git a/package/kernel/spi-ks8995/src/Kconfig b/package/kernel/spi-ks8995/src/Kconfig deleted file mode 100644 index 7859be183d..0000000000 --- a/package/kernel/spi-ks8995/src/Kconfig +++ /dev/null @@ -1,3 +0,0 @@ -config SPI_KS8995 - tristate "Micrel/Kendin KS8995 Ethernet switch" - depends on SPI diff --git a/package/kernel/spi-ks8995/src/Makefile b/package/kernel/spi-ks8995/src/Makefile deleted file mode 100644 index 810c3bd1db..0000000000 --- a/package/kernel/spi-ks8995/src/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-${CONFIG_SPI_KS8995} += spi_ks8995.o
\ No newline at end of file diff --git a/package/kernel/spi-ks8995/src/spi_ks8995.c b/package/kernel/spi-ks8995/src/spi_ks8995.c deleted file mode 100644 index dc42b5d318..0000000000 --- a/package/kernel/spi-ks8995/src/spi_ks8995.c +++ /dev/null @@ -1,419 +0,0 @@ -/* - * SPI driver for Micrel/Kendin KS8995M ethernet switch - * - * Copyright (C) 2008 Gabor Juhos <juhosg at openwrt.org> - * - * This file was based on: drivers/spi/at25.c - * Copyright (C) 2006 David Brownell - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/device.h> - -#include <linux/spi/spi.h> - -#define DRV_VERSION "0.1.1" -#define DRV_DESC "Micrel/Kendin KS8995 Ethernet switch SPI driver" - -/*-------------------------------------------------------------------------*/ - -#define KS8995_REG_ID0 0x00 /* Chip ID0 */ -#define KS8995_REG_ID1 0x01 /* Chip ID1 */ - -#define KS8995_REG_GC0 0x02 /* Global Control 0 */ -#define KS8995_REG_GC1 0x03 /* Global Control 1 */ -#define KS8995_REG_GC2 0x04 /* Global Control 2 */ -#define KS8995_REG_GC3 0x05 /* Global Control 3 */ -#define KS8995_REG_GC4 0x06 /* Global Control 4 */ -#define KS8995_REG_GC5 0x07 /* Global Control 5 */ -#define KS8995_REG_GC6 0x08 /* Global Control 6 */ -#define KS8995_REG_GC7 0x09 /* Global Control 7 */ -#define KS8995_REG_GC8 0x0a /* Global Control 8 */ -#define KS8995_REG_GC9 0x0b /* Global Control 9 */ - -#define KS8995_REG_PC(p,r) ((0x10 * p) + r) /* Port Control */ -#define KS8995_REG_PS(p,r) ((0x10 * p) + r + 0xe) /* Port Status */ - -#define KS8995_REG_TPC0 0x60 /* TOS Priority Control 0 */ -#define KS8995_REG_TPC1 0x61 /* TOS Priority Control 1 */ -#define KS8995_REG_TPC2 0x62 /* TOS Priority Control 2 */ -#define KS8995_REG_TPC3 0x63 /* TOS Priority Control 3 */ -#define KS8995_REG_TPC4 0x64 /* TOS Priority Control 4 */ -#define KS8995_REG_TPC5 0x65 /* TOS Priority Control 5 */ -#define KS8995_REG_TPC6 0x66 /* TOS Priority Control 6 */ -#define KS8995_REG_TPC7 0x67 /* TOS Priority Control 7 */ - -#define KS8995_REG_MAC0 0x68 /* MAC address 0 */ -#define KS8995_REG_MAC1 0x69 /* MAC address 1 */ -#define KS8995_REG_MAC2 0x6a /* MAC address 2 */ -#define KS8995_REG_MAC3 0x6b /* MAC address 3 */ -#define KS8995_REG_MAC4 0x6c /* MAC address 4 */ -#define KS8995_REG_MAC5 0x6d /* MAC address 5 */ - -#define KS8995_REG_IAC0 0x6e /* Indirect Access Control 0 */ -#define KS8995_REG_IAC1 0x6f /* Indirect Access Control 0 */ - -#define KS8995_REG_IAD7 0x70 /* Indirect Access Data 7 */ -#define KS8995_REG_IAD6 0x71 /* Indirect Access Data 6 */ -#define KS8995_REG_IAD5 0x72 /* Indirect Access Data 5 */ -#define KS8995_REG_IAD4 0x73 /* Indirect Access Data 4 */ -#define KS8995_REG_IAD3 0x74 /* Indirect Access Data 3 */ -#define KS8995_REG_IAD2 0x75 /* Indirect Access Data 2 */ -#define KS8995_REG_IAD1 0x76 /* Indirect Access Data 1 */ -#define KS8995_REG_IAD0 0x77 /* Indirect Access Data 0 */ - -#define KS8995_REGS_SIZE 0x80 - -#define ID1_CHIPID_M 0xf -#define ID1_CHIPID_S 4 -#define ID1_REVISION_M 0x7 -#define ID1_REVISION_S 1 -#define ID1_START_SW 1 /* start the switch */ - -#define FAMILY_KS8995 0x95 -#define CHIPID_M 0 - -#define KS8995_CMD_WRITE 0x02U -#define KS8995_CMD_READ 0x03U - -#define KS8995_RESET_DELAY 10 /* usec */ - -/*-------------------------------------------------------------------------*/ - -struct ks8995_pdata { - /* not yet implemented */ -}; - -struct ks8995_switch { - struct spi_device *spi; - struct mutex lock; - struct ks8995_pdata *pdata; -}; - -/*-------------------------------------------------------------------------*/ - -static inline u8 get_chip_id(u8 val) -{ - return ((val >> ID1_CHIPID_S) & ID1_CHIPID_M); -} - -static inline u8 get_chip_rev(u8 val) -{ - return ((val >> ID1_REVISION_S) & ID1_REVISION_M); -} - -/*-------------------------------------------------------------------------*/ - -static int ks8995_read(struct ks8995_switch *ks, char *buf, - unsigned offset, size_t count) -{ - u8 cmd[2]; - struct spi_transfer t[2]; - struct spi_message m; - int err; - - spi_message_init(&m); - - memset(&t, 0, sizeof(t)); - - t[0].tx_buf = cmd; - t[0].len = sizeof(cmd); - spi_message_add_tail(&t[0], &m); - - t[1].rx_buf = buf; - t[1].len = count; - spi_message_add_tail(&t[1], &m); - - cmd[0] = KS8995_CMD_READ; - cmd[1] = offset; - - mutex_lock(&ks->lock); - err = spi_sync(ks->spi, &m); - mutex_unlock(&ks->lock); - - return err ? err : count; -} - - -static int ks8995_write(struct ks8995_switch *ks, char *buf, - unsigned offset, size_t count) -{ - u8 cmd[2]; - struct spi_transfer t[2]; - struct spi_message m; - int err; - - spi_message_init(&m); - - memset(&t, 0, sizeof(t)); - - t[0].tx_buf = cmd; - t[0].len = sizeof(cmd); - spi_message_add_tail(&t[0], &m); - - t[1].tx_buf = buf; - t[1].len = count; - spi_message_add_tail(&t[1], &m); - - cmd[0] = KS8995_CMD_WRITE; - cmd[1] = offset; - - mutex_lock(&ks->lock); - err = spi_sync(ks->spi, &m); - mutex_unlock(&ks->lock); - - return err ? err : count; -} - -static inline int ks8995_read_reg(struct ks8995_switch *ks, u8 addr, u8 *buf) -{ - return (ks8995_read(ks, buf, addr, 1) != 1); -} - -static inline int ks8995_write_reg(struct ks8995_switch *ks, u8 addr, u8 val) -{ - char buf = val; - - return (ks8995_write(ks, &buf, addr, 1) != 1); -} - -/*-------------------------------------------------------------------------*/ - -#if 0 -static int ks8995_setup(struct spi_device *spi) -{ - struct ks8995_switch *ks; - u8 t; - - ks = dev_get_drvdata(&spi->dev); - - ks8995_write_reg(ks, KS8995_REG_GC0, 0x4c); - ks8995_write_reg(ks, KS8995_REG_GC1, 0x05); - - ks8995_read_reg(ks, KS8995_REG_GC2, &t); - ks8995_write_reg(ks, KS8995_REG_GC2, t | 1); - - ks8995_write_reg(ks, KS8995_REG_GC4, 0x20); - - ks8995_write_reg(ks, KS8995_REG_PC(1,0), 0x61); - ks8995_write_reg(ks, KS8995_REG_PC(2,0), 0x61); - ks8995_write_reg(ks, KS8995_REG_PC(3,0), 0x61); - ks8995_write_reg(ks, KS8995_REG_PC(4,0), 0x61); - ks8995_write_reg(ks, KS8995_REG_PC(5,0), 0x61); - - ks8995_write_reg(ks, KS8995_REG_PC(5,11), 0x18); - - ks8995_write_reg(ks, KS8995_REG_TPC0, 0xff); - ks8995_write_reg(ks, KS8995_REG_TPC1, 0xff); - ks8995_write_reg(ks, KS8995_REG_TPC2, 0xff); - ks8995_write_reg(ks, KS8995_REG_TPC3, 0xff); - ks8995_write_reg(ks, KS8995_REG_TPC4, 0xff); - ks8995_write_reg(ks, KS8995_REG_TPC5, 0xff); - ks8995_write_reg(ks, KS8995_REG_TPC6, 0xff); - ks8995_write_reg(ks, KS8995_REG_TPC7, 0xfe); - - return 0; -} -#endif - -static int ks8995_stop(struct ks8995_switch *ks) -{ - return ks8995_write_reg(ks, KS8995_REG_ID1, 0); -} - -static int ks8995_start(struct ks8995_switch *ks) -{ - return ks8995_write_reg(ks, KS8995_REG_ID1, 1); -} - -static int ks8995_reset(struct ks8995_switch *ks) -{ - int err; - - err = ks8995_stop(ks); - if (err) - return err; - - udelay(KS8995_RESET_DELAY); - - return ks8995_start(ks); -} - -/*-------------------------------------------------------------------------*/ - -static int ks8995_registers_read(struct kobject *kobj, - struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) -{ - struct device *dev; - struct ks8995_switch *ks8995; - - dev = container_of(kobj, struct device, kobj); - ks8995 = dev_get_drvdata(dev); - - if (unlikely(off > KS8995_REGS_SIZE)) - return 0; - - if ((off + count) > KS8995_REGS_SIZE) - count = KS8995_REGS_SIZE - off; - - if (unlikely(!count)) - return count; - - return ks8995_read(ks8995, buf, off, count); -} - - -static int ks8995_registers_write(struct kobject *kobj, - struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) -{ - struct device *dev; - struct ks8995_switch *ks8995; - - dev = container_of(kobj, struct device, kobj); - ks8995 = dev_get_drvdata(dev); - - if (unlikely(off >= KS8995_REGS_SIZE)) - return -EFBIG; - - if ((off + count) > KS8995_REGS_SIZE) - count = KS8995_REGS_SIZE - off; - - if (unlikely(!count)) - return count; - - return ks8995_write(ks8995, buf, off, count); -} - - -static struct bin_attribute ks8995_registers_attr = { - .attr = { - .name = "registers", - .mode = S_IRUSR | S_IWUSR, - }, - .size = KS8995_REGS_SIZE, - .read = ks8995_registers_read, - .write = ks8995_registers_write, -}; - -/*-------------------------------------------------------------------------*/ - -static int ks8995_probe(struct spi_device *spi) -{ - struct ks8995_switch *ks; - struct ks8995_pdata *pdata; - u8 ids[2]; - int err; - - /* Chip description */ - pdata = spi->dev.platform_data; - - ks = kzalloc(sizeof(*ks), GFP_KERNEL); - if (!ks) { - dev_err(&spi->dev, "no memory for private data\n"); - return-ENOMEM; - } - - mutex_init(&ks->lock); - ks->pdata = pdata; - ks->spi = spi_dev_get(spi); - dev_set_drvdata(&spi->dev, ks); - - spi->mode = SPI_MODE_0; - spi->bits_per_word = 8; - err = spi_setup(spi); - if (err) { - dev_err(&spi->dev, "spi_setup failed, err=%d \n", err); - goto err_drvdata; - } - - err = ks8995_read(ks, ids, KS8995_REG_ID0, sizeof(ids)); - if (err < 0) { - dev_err(&spi->dev, "unable to read id registers, err=%d \n", - err); - goto err_drvdata; - } - - switch (ids[0]) { - case FAMILY_KS8995: - break; - default: - dev_err(&spi->dev, "unknown family id:%02x\n", ids[0]); - err = -ENODEV; - goto err_drvdata; - } - - err = ks8995_reset(ks); - if (err) - goto err_drvdata; - - err = sysfs_create_bin_file(&spi->dev.kobj, &ks8995_registers_attr); - if (err) { - dev_err(&spi->dev, "unable to create sysfs file, err=%d\n", - err); - goto err_drvdata; - } - - dev_info(&spi->dev, "KS89%02X device found, Chip ID:%01x, " - "Revision:%01x\n", ids[0], - get_chip_id(ids[1]), get_chip_rev(ids[1])); - - return 0; - -err_drvdata: - dev_set_drvdata(&spi->dev, NULL); - kfree(ks); - return err; -} - -static int ks8995_remove(struct spi_device *spi) -{ - struct ks8995_data *ks8995; - - ks8995 = dev_get_drvdata(&spi->dev); - sysfs_remove_bin_file(&spi->dev.kobj, &ks8995_registers_attr); - - dev_set_drvdata(&spi->dev, NULL); - kfree(ks8995); - - return 0; -} - -/*-------------------------------------------------------------------------*/ - -static struct spi_driver ks8995_driver = { - .driver = { - .name = "spi-ks8995", - .bus = &spi_bus_type, - .owner = THIS_MODULE, - }, - .probe = ks8995_probe, - .remove = ks8995_remove, -}; - -static int __init ks8995_init(void) -{ - printk(KERN_INFO DRV_DESC " version " DRV_VERSION"\n"); - - return spi_register_driver(&ks8995_driver); -} -module_init(ks8995_init); - -static void __exit ks8995_exit(void) -{ - spi_unregister_driver(&ks8995_driver); -} -module_exit(ks8995_exit); - -MODULE_DESCRIPTION(DRV_DESC); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>"); -MODULE_LICENSE("GPL v2"); - |