diff options
| -rw-r--r-- | target/linux/omap24xx/config-2.6.36 | 1 | ||||
| -rw-r--r-- | target/linux/omap24xx/patches-2.6.36/200-omap-platform.patch | 602 |
2 files changed, 598 insertions, 5 deletions
diff --git a/target/linux/omap24xx/config-2.6.36 b/target/linux/omap24xx/config-2.6.36 index 065f3ececc..d2026fea4d 100644 --- a/target/linux/omap24xx/config-2.6.36 +++ b/target/linux/omap24xx/config-2.6.36 @@ -404,6 +404,7 @@ CONFIG_OMAP_BOOT_REASON=y CONFIG_OMAP_BOOT_TAG=y CONFIG_OMAP_COMPONENT_VERSION=y CONFIG_OMAP_DM_TIMER=y +CONFIG_OMAP_GPIO_SWITCH=y CONFIG_OMAP_MBOX_FWK=y CONFIG_OMAP_MBOX_KFIFO_SIZE=256 CONFIG_OMAP_MCBSP=y diff --git a/target/linux/omap24xx/patches-2.6.36/200-omap-platform.patch b/target/linux/omap24xx/patches-2.6.36/200-omap-platform.patch index ea90592f2c..56165be411 100644 --- a/target/linux/omap24xx/patches-2.6.36/200-omap-platform.patch +++ b/target/linux/omap24xx/patches-2.6.36/200-omap-platform.patch @@ -1,10 +1,11 @@ --- arch/arm/include/asm/setup.h | 12 - arch/arm/plat-omap/Kconfig | 24 - arch/arm/plat-omap/Makefile | 2 + arch/arm/plat-omap/Kconfig | 32 + + arch/arm/plat-omap/Makefile | 5 arch/arm/plat-omap/bootreason.c | 79 ++ arch/arm/plat-omap/common.c | 70 ++ arch/arm/plat-omap/component-version.c | 64 ++ + arch/arm/plat-omap/gpio-switch.c | 554 ++++++++++++++++++ arch/arm/plat-omap/include/mach/blizzard.h | 12 arch/arm/plat-omap/include/mach/board-ams-delta.h | 76 ++ arch/arm/plat-omap/include/mach/board-sx1.h | 52 + @@ -75,8 +76,9 @@ arch/arm/plat-omap/include/mach/usb.h | 162 +++++ arch/arm/plat-omap/include/mach/vram.h | 62 ++ arch/arm/plat-omap/include/mach/vrfb.h | 50 + + arch/arm/plat-omap/include/plat/board.h | 8 arch/arm/plat-omap/include/plat/cbus.h | 31 + - 77 files changed, 10001 insertions(+) + 79 files changed, 10573 insertions(+), 1 deletion(-) --- /dev/null +++ linux-2.6.36-rc4/arch/arm/plat-omap/bootreason.c @@ -10276,7 +10278,7 @@ +#endif /* __PLAT_CBUS_H */ --- linux-2.6.36-rc4.orig/arch/arm/plat-omap/Kconfig +++ linux-2.6.36-rc4/arch/arm/plat-omap/Kconfig -@@ -47,6 +47,30 @@ config OMAP_RESET_CLOCKS +@@ -47,6 +47,38 @@ config OMAP_RESET_CLOCKS probably do not want this option enabled until your device drivers work properly. @@ -10304,20 +10306,36 @@ + Say Y, if you want to have a procfs entry for reading component + versions (supplied by the bootloader) in user-space. + ++config OMAP_GPIO_SWITCH ++ bool "GPIO switch support" ++ help ++ Say Y, if you want to have support for reporting of GPIO ++ switches (e.g. cover switches) via sysfs. Your bootloader has ++ to provide information about the switches to the kernel via the ++ ATAG_BOARD mechanism if they're not defined by the board config. ++ config OMAP_MUX bool "OMAP multiplexing support" depends on ARCH_OMAP --- linux-2.6.36-rc4.orig/arch/arm/plat-omap/Makefile +++ linux-2.6.36-rc4/arch/arm/plat-omap/Makefile -@@ -23,6 +23,8 @@ obj-$(CONFIG_OMAP_IOMMU_DEBUG) += iommu- +@@ -23,6 +23,9 @@ obj-$(CONFIG_OMAP_IOMMU_DEBUG) += iommu- obj-$(CONFIG_CPU_FREQ) += cpu-omap.o obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o +obj-$(CONFIG_OMAP_BOOT_REASON) += bootreason.o +obj-$(CONFIG_OMAP_COMPONENT_VERSION) += component-version.o ++obj-$(CONFIG_OMAP_GPIO_SWITCH) += gpio-switch.o obj-$(CONFIG_OMAP_DEBUG_DEVICES) += debug-devices.o obj-$(CONFIG_OMAP_DEBUG_LEDS) += debug-leds.o i2c-omap-$(CONFIG_I2C_OMAP) := i2c.o +@@ -31,4 +34,4 @@ obj-y += $(i2c-omap-m) $(i2c-omap-y) + # OMAP mailbox framework + obj-$(CONFIG_OMAP_MBOX_FWK) += mailbox.o + +-obj-$(CONFIG_OMAP_PM_NOOP) += omap-pm-noop.o +\ No newline at end of file ++obj-$(CONFIG_OMAP_PM_NOOP) += omap-pm-noop.o --- linux-2.6.36-rc4.orig/arch/arm/include/asm/setup.h +++ linux-2.6.36-rc4/arch/arm/include/asm/setup.h @@ -136,6 +136,13 @@ struct tag_acorn { @@ -10346,3 +10364,577 @@ * DC21285 specific */ struct tag_memclk memclk; +--- /dev/null ++++ linux-2.6.36-rc4/arch/arm/plat-omap/gpio-switch.c +@@ -0,0 +1,554 @@ ++/* ++ * linux/arch/arm/plat-omap/gpio-switch.c ++ * ++ * Copyright (C) 2004-2006 Nokia Corporation ++ * Written by Juha Yrjölä <juha.yrjola@nokia.com> ++ * and Paul Mundt <paul.mundt@nokia.com> ++ * ++ * 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/sched.h> ++#include <linux/init.h> ++#include <linux/list.h> ++#include <linux/irq.h> ++#include <linux/interrupt.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/timer.h> ++#include <linux/err.h> ++#include <linux/slab.h> ++#include <linux/gpio.h> ++#include <plat/hardware.h> ++#include <plat/irqs.h> ++#include <plat/mux.h> ++#include <plat/board.h> ++#include <plat/gpio-switch.h> ++ ++struct gpio_switch { ++ char name[14]; ++ u16 gpio; ++ unsigned flags:4; ++ unsigned type:4; ++ unsigned state:1; ++ unsigned both_edges:1; ++ ++ u16 debounce_rising; ++ u16 debounce_falling; ++ ++ void (* notify)(void *data, int state); ++ void *notify_data; ++ ++ struct work_struct work; ++ struct timer_list timer; ++ struct platform_device pdev; ++ ++ struct list_head node; ++}; ++ ++static LIST_HEAD(gpio_switches); ++static struct platform_device *gpio_sw_platform_dev; ++static struct platform_driver gpio_sw_driver; ++ ++static const struct omap_gpio_switch *board_gpio_sw_table; ++static int board_gpio_sw_count; ++ ++static const char *cover_str[2] = { "open", "closed" }; ++static const char *connection_str[2] = { "disconnected", "connected" }; ++static const char *activity_str[2] = { "inactive", "active" }; ++ ++/* ++ * GPIO switch state default debounce delay in ms ++ */ ++#define OMAP_GPIO_SW_DEFAULT_DEBOUNCE 10 ++ ++static const char **get_sw_str(struct gpio_switch *sw) ++{ ++ switch (sw->type) { ++ case OMAP_GPIO_SWITCH_TYPE_COVER: ++ return cover_str; ++ case OMAP_GPIO_SWITCH_TYPE_CONNECTION: ++ return connection_str; ++ case OMAP_GPIO_SWITCH_TYPE_ACTIVITY: ++ return activity_str; ++ default: ++ BUG(); ++ return NULL; ++ } ++} ++ ++static const char *get_sw_type(struct gpio_switch *sw) ++{ ++ switch (sw->type) { ++ case OMAP_GPIO_SWITCH_TYPE_COVER: ++ return "cover"; ++ case OMAP_GPIO_SWITCH_TYPE_CONNECTION: ++ return "connection"; ++ case OMAP_GPIO_SWITCH_TYPE_ACTIVITY: ++ return "activity"; ++ default: ++ BUG(); ++ return NULL; ++ } ++} ++ ++static void print_sw_state(struct gpio_switch *sw, int state) ++{ ++ const char **str; ++ ++ str = get_sw_str(sw); ++ if (str != NULL) ++ printk(KERN_INFO "%s (GPIO %d) is now %s\n", sw->name, sw->gpio, str[state]); ++} ++ ++static int gpio_sw_get_state(struct gpio_switch *sw) ++{ ++ int state; ++ ++ state = gpio_get_value(sw->gpio); ++ if (sw->flags & OMAP_GPIO_SWITCH_FLAG_INVERTED) ++ state = !state; ++ ++ return state; ++} ++ ++static ssize_t gpio_sw_state_store(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, ++ size_t count) ++{ ++ struct gpio_switch *sw = dev_get_drvdata(dev); ++ const char **str; ++ char state[16]; ++ int enable; ++ ++ if (!(sw->flags & OMAP_GPIO_SWITCH_FLAG_OUTPUT)) ++ return -EPERM; ++ ++ if (sscanf(buf, "%15s", state) != 1) ++ return -EINVAL; ++ ++ str = get_sw_str(sw); ++ if (strcmp(state, str[0]) == 0) ++ sw->state = enable = 0; ++ else if (strcmp(state, str[1]) == 0) ++ sw->state = enable = 1; ++ else ++ return -EINVAL; ++ ++ if (sw->flags & OMAP_GPIO_SWITCH_FLAG_INVERTED) ++ enable = !enable; ++ gpio_set_value(sw->gpio, enable); ++ ++ return count; ++} ++ ++static ssize_t gpio_sw_state_show(struct device *dev, ++ struct device_attribute *attr, ++ char *buf) ++{ ++ struct gpio_switch *sw = dev_get_drvdata(dev); ++ const char **str; ++ ++ str = get_sw_str(sw); ++ return sprintf(buf, "%s\n", str[sw->state]); ++} ++ ++static DEVICE_ATTR(state, S_IRUGO | S_IWUSR, gpio_sw_state_show, ++ gpio_sw_state_store); ++ ++static ssize_t gpio_sw_type_show(struct device *dev, ++ struct device_attribute *attr, ++ char *buf) ++{ ++ struct gpio_switch *sw = dev_get_drvdata(dev); ++ ++ return sprintf(buf, "%s\n", get_sw_type(sw)); ++} ++ ++static DEVICE_ATTR(type, S_IRUGO, gpio_sw_type_show, NULL); ++ ++static ssize_t gpio_sw_direction_show(struct device *dev, ++ struct device_attribute *attr, ++ char *buf) ++{ ++ struct gpio_switch *sw = dev_get_drvdata(dev); ++ int is_output; ++ ++ is_output = sw->flags & OMAP_GPIO_SWITCH_FLAG_OUTPUT; ++ return sprintf(buf, "%s\n", is_output ? "output" : "input"); ++} ++ ++static DEVICE_ATTR(direction, S_IRUGO, gpio_sw_direction_show, NULL); ++ ++ ++static irqreturn_t gpio_sw_irq_handler(int irq, void *arg) ++{ ++ struct gpio_switch *sw = arg; ++ unsigned long timeout; ++ int state; ++ ++ if (!sw->both_edges) { ++ if (gpio_get_value(sw->gpio)) ++ set_irq_type(OMAP_GPIO_IRQ(sw->gpio), IRQ_TYPE_EDGE_FALLING); ++ else ++ set_irq_type(OMAP_GPIO_IRQ(sw->gpio), IRQ_TYPE_EDGE_RISING); ++ } ++ ++ state = gpio_sw_get_state(sw); ++ if (sw->state == state) ++ return IRQ_HANDLED; ++ ++ if (state) ++ timeout = sw->debounce_rising; ++ else ++ timeout = sw->debounce_falling; ++ if (!timeout) ++ schedule_work(&sw->work); ++ else ++ mod_timer(&sw->timer, jiffies + msecs_to_jiffies(timeout)); ++ ++ return IRQ_HANDLED; ++} ++ ++static void gpio_sw_timer(unsigned long arg) ++{ ++ struct gpio_switch *sw = (struct gpio_switch *) arg; ++ ++ schedule_work(&sw->work); ++} ++ ++static void gpio_sw_handler(struct work_struct *work) ++{ ++ struct gpio_switch *sw = container_of(work, struct gpio_switch, work); ++ int state; ++ ++ state = gpio_sw_get_state(sw); ++ if (sw->state == state) ++ return; ++ ++ sw->state = state; ++ if (sw->notify != NULL) ++ sw->notify(sw->notify_data, state); ++ sysfs_notify(&sw->pdev.dev.kobj, NULL, "state"); ++ print_sw_state(sw, state); ++} ++ ++static int __init can_do_both_edges(struct gpio_switch *sw) ++{ ++ if (!cpu_class_is_omap1()) ++ return 1; ++ if (OMAP_GPIO_IS_MPUIO(sw->gpio)) ++ return 0; ++ else ++ return 1; ++} ++ ++static void gpio_sw_release(struct device *dev) ++{ ++} ++ ++static int __init new_switch(struct gpio_switch *sw) ++{ ++ int r, direction, trigger; ++ ++ switch (sw->type) { ++ case OMAP_GPIO_SWITCH_TYPE_COVER: ++ case OMAP_GPIO_SWITCH_TYPE_CONNECTION: ++ case OMAP_GPIO_SWITCH_TYPE_ACTIVITY: ++ break; ++ default: ++ printk(KERN_ERR "invalid GPIO switch type: %d\n", sw->type); ++ return -EINVAL; ++ } ++ ++ sw->pdev.name = sw->name; ++ sw->pdev.id = -1; ++ ++ sw->pdev.dev.parent = &gpio_sw_platform_dev->dev; ++ sw->pdev.dev.driver = &gpio_sw_driver.driver; ++ sw->pdev.dev.release = gpio_sw_release; ++ ++ r = platform_device_register(&sw->pdev); ++ if (r) { ++ printk(KERN_ERR "gpio-switch: platform device registration " ++ "failed for %s", sw->name); ++ return r; ++ } ++ dev_set_drvdata(&sw->pdev.dev, sw); ++ ++ r = gpio_request(sw->gpio, "gpio-switch"); ++ if (r < 0) { ++ platform_device_unregister(&sw->pdev); ++ return r; ++ } ++ ++ /* input: 1, output: 0 */ ++ direction = !(sw->flags & OMAP_GPIO_SWITCH_FLAG_OUTPUT); ++ if (direction) ++ gpio_direction_input(sw->gpio); ++ else ++ gpio_direction_output(sw->gpio, 0); ++ ++ sw->state = gpio_sw_get_state(sw); ++ ++ r = 0; ++ r |= device_create_file(&sw->pdev.dev, &dev_attr_state); ++ r |= device_create_file(&sw->pdev.dev, &dev_attr_type); ++ r |= device_create_file(&sw->pdev.dev, &dev_attr_direction); ++ if (r) ++ printk(KERN_ERR "gpio-switch: attribute file creation " ++ "failed for %s\n", sw->name); ++ ++ if (!direction) ++ return 0; ++ ++ if (can_do_both_edges(sw)) { ++ trigger = IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING; ++ sw->both_edges = 1; ++ } else { ++ if (gpio_get_value(sw->gpio)) ++ trigger = IRQF_TRIGGER_FALLING; ++ else ++ trigger = IRQF_TRIGGER_RISING; ++ } ++ r = request_irq(OMAP_GPIO_IRQ(sw->gpio), gpio_sw_irq_handler, ++ IRQF_SHARED | trigger, sw->name, sw); ++ if (r < 0) { ++ printk(KERN_ERR "gpio-switch: request_irq() failed " ++ "for GPIO %d\n", sw->gpio); ++ platform_device_unregister(&sw->pdev); ++ gpio_free(sw->gpio); ++ return r; ++ } ++ ++ INIT_WORK(&sw->work, gpio_sw_handler); ++ init_timer(&sw->timer); ++ ++ sw->timer.function = gpio_sw_timer; ++ sw->timer.data = (unsigned long)sw; ++ ++ list_add(&sw->node, &gpio_switches); ++ ++ return 0; ++} ++ ++static int __init add_atag_switches(void) ++{ ++ const struct omap_gpio_switch_config *cfg; ++ struct gpio_switch *sw; ++ int i, r; ++ ++ for (i = 0; ; i++) { ++ cfg = omap_get_nr_config(OMAP_TAG_GPIO_SWITCH, ++ struct omap_gpio_switch_config, i); ++ if (cfg == NULL) ++ break; ++ sw = kzalloc(sizeof(*sw), GFP_KERNEL); ++ if (sw == NULL) { ++ printk(KERN_ERR "gpio-switch: kmalloc failed\n"); ++ return -ENOMEM; ++ } ++ strncpy(sw->name, cfg->name, sizeof(cfg->name)); ++ sw->gpio = cfg->gpio; ++ sw->flags = cfg->flags; ++ sw->type = cfg->type; ++ sw->debounce_rising = OMAP_GPIO_SW_DEFAULT_DEBOUNCE; ++ sw->debounce_falling = OMAP_GPIO_SW_DEFAULT_DEBOUNCE; ++ if ((r = new_switch(sw)) < 0) { ++ kfree(sw); ++ return r; ++ } ++ } ++ return 0; ++} ++ ++static struct gpio_switch * __init find_switch(int gpio, const char *name) ++{ ++ struct gpio_switch *sw; ++ ++ list_for_each_entry(sw, &gpio_switches, node) { ++ if ((gpio < 0 || sw->gpio != gpio) && ++ (name == NULL || strcmp(sw->name, name) != 0)) ++ continue; ++ ++ if (gpio < 0 || name == NULL) ++ goto no_check; ++ ++ if (strcmp(sw->name, name) != 0) ++ printk("gpio-switch: name mismatch for %d (%s, %s)\n", ++ gpio, name, sw->name); ++ else if (sw->gpio != gpio) ++ printk("gpio-switch: GPIO mismatch for %s (%d, %d)\n", ++ name, gpio, sw->gpio); ++no_check: ++ return sw; ++ } ++ return NULL; ++} ++ ++static int __init add_board_switches(void) ++{ ++ int i; ++ ++ for (i = 0; i < board_gpio_sw_count; i++) { ++ const struct omap_gpio_switch *cfg; ++ struct gpio_switch *sw; ++ int r; ++ ++ cfg = board_gpio_sw_table + i; ++ if (strlen(cfg->name) > sizeof(sw->name) - 1) ++ return -EINVAL; ++ /* Check whether we only update an existing switch ++ * or add a new switch. */ ++ sw = find_switch(cfg->gpio, cfg->name); ++ if (sw != NULL) { ++ sw->debounce_rising = cfg->debounce_rising; ++ sw->debounce_falling = cfg->debounce_falling; ++ sw->notify = cfg->notify; ++ sw->notify_data = cfg->notify_data; ++ continue; ++ } else { ++ if (cfg->gpio < 0 || cfg->name == NULL) { ++ printk("gpio-switch: required switch not " ++ "found (%d, %s)\n", cfg->gpio, ++ cfg->name); ++ continue; ++ } ++ } ++ sw = kzalloc(sizeof(*sw), GFP_KERNEL); ++ if (sw == NULL) { ++ printk(KERN_ERR "gpio-switch: kmalloc failed\n"); ++ return -ENOMEM; ++ } ++ strlcpy(sw->name, cfg->name, sizeof(sw->name)); ++ sw->gpio = cfg->gpio; ++ sw->flags = cfg->flags; ++ sw->type = cfg->type; ++ sw->debounce_rising = cfg->debounce_rising; ++ sw->debounce_falling = cfg->debounce_falling; ++ sw->notify = cfg->notify; ++ sw->notify_data = cfg->notify_data; ++ if ((r = new_switch(sw)) < 0) { ++ kfree(sw); ++ return r; ++ } ++ } ++ return 0; ++} ++ ++static void gpio_sw_cleanup(void) ++{ ++ struct gpio_switch *sw = NULL, *old = NULL; ++ ++ list_for_each_entry(sw, &gpio_switches, node) { ++ if (old != NULL) ++ kfree(old); ++ flush_scheduled_work(); ++ del_timer_sync(&sw->timer); ++ ++ free_irq(OMAP_GPIO_IRQ(sw->gpio), sw); ++ ++ device_remove_file(&sw->pdev.dev, &dev_attr_state); ++ device_remove_file(&sw->pdev.dev, &dev_attr_type); ++ device_remove_file(&sw->pdev.dev, &dev_attr_direction); ++ ++ platform_device_unregister(&sw->pdev); ++ gpio_free(sw->gpio); ++ old = sw; ++ } ++ kfree(old); ++} ++ ++static void __init report_initial_state(void) ++{ ++ struct gpio_switch *sw; ++ ++ list_for_each_entry(sw, &gpio_switches, node) { ++ int state; ++ ++ state = gpio_get_value(sw->gpio); ++ if (sw->flags & OMAP_GPIO_SWITCH_FLAG_INVERTED) ++ state = !state; ++ if (sw->notify != NULL) ++ sw->notify(sw->notify_data, state); ++ print_sw_state(sw, state); ++ } ++} ++ ++static int gpio_sw_remove(struct platform_device *dev) ++{ ++ return 0; ++} ++ ++static struct platform_driver gpio_sw_driver = { ++ .remove = gpio_sw_remove, ++ .driver = { ++ .name = "gpio-switch", ++ }, ++}; ++ ++void __init omap_register_gpio_switches(const struct omap_gpio_switch *tbl, ++ int count) ++{ ++ BUG_ON(board_gpio_sw_table != NULL); ++ ++ board_gpio_sw_table = tbl; ++ board_gpio_sw_count = count; ++} ++ ++static int __init gpio_sw_init(void) ++{ ++ int r; ++ ++ printk(KERN_INFO "OMAP GPIO switch handler initializing\n"); ++ ++ r = platform_driver_register(&gpio_sw_driver); ++ if (r) ++ return r; ++ ++ gpio_sw_platform_dev = platform_device_register_simple("gpio-switch", ++ -1, NULL, 0); ++ if (IS_ERR(gpio_sw_platform_dev)) { ++ r = PTR_ERR(gpio_sw_platform_dev); ++ goto err1; ++ } ++ ++ r = add_atag_switches(); ++ if (r < 0) ++ goto err2; ++ ++ r = add_board_switches(); ++ if (r < 0) ++ goto err2; ++ ++ report_initial_state(); ++ ++ return 0; ++err2: ++ gpio_sw_cleanup(); ++ platform_device_unregister(gpio_sw_platform_dev); ++err1: ++ platform_driver_unregister(&gpio_sw_driver); ++ return r; ++} ++ ++static void __exit gpio_sw_exit(void) ++{ ++ gpio_sw_cleanup(); ++ platform_device_unregister(gpio_sw_platform_dev); ++ platform_driver_unregister(&gpio_sw_driver); ++} ++ ++#ifndef MODULE ++late_initcall(gpio_sw_init); ++#else ++module_init(gpio_sw_init); ++#endif ++module_exit(gpio_sw_exit); ++ ++MODULE_AUTHOR("Juha Yrjölä <juha.yrjola@nokia.com>, Paul Mundt <paul.mundt@nokia.com"); ++MODULE_DESCRIPTION("GPIO switch driver"); ++MODULE_LICENSE("GPL"); +--- linux-2.6.36-rc4.orig/arch/arm/plat-omap/include/plat/board.h ++++ linux-2.6.36-rc4/arch/arm/plat-omap/include/plat/board.h +@@ -151,6 +151,14 @@ struct omap_board_config_kernel { + const void *data; + }; + ++struct omap_gpio_switch_config { ++ char name[12]; ++ u16 gpio; ++ int flags:4; ++ int type:4; ++ int key_code:24; /* Linux key code */ ++}; ++ + extern const void *__omap_get_config(u16 tag, size_t len, int nr); + + #define omap_get_config(tag, type) \ |