From 6600fab89300162a580bd4b689939e380fcfdd78 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Mon, 8 Mar 2010 12:10:01 +0000 Subject: [PATCH] ar71xx: add LED driver for the RB750 SVN-Revision: 20051 --- target/linux/ar71xx/config-2.6.32 | 1 + target/linux/ar71xx/config-2.6.33 | 1 + .../files/arch/mips/ar71xx/mach-rb750.c | 49 ++++++ .../mips/include/asm/mach-ar71xx/mach-rb750.h | 12 ++ .../ar71xx/files/drivers/leds/leds-rb750.c | 140 ++++++++++++++++++ .../patches-2.6.32/207-rb750-led-driver.patch | 23 +++ .../patches-2.6.33/207-rb750-led-driver.patch | 23 +++ 7 files changed, 249 insertions(+) create mode 100644 target/linux/ar71xx/files/drivers/leds/leds-rb750.c create mode 100644 target/linux/ar71xx/patches-2.6.32/207-rb750-led-driver.patch create mode 100644 target/linux/ar71xx/patches-2.6.33/207-rb750-led-driver.patch diff --git a/target/linux/ar71xx/config-2.6.32 b/target/linux/ar71xx/config-2.6.32 index fa36098857..b343d957cf 100644 --- a/target/linux/ar71xx/config-2.6.32 +++ b/target/linux/ar71xx/config-2.6.32 @@ -133,6 +133,7 @@ CONFIG_INITRAMFS_ROOT_UID=0 CONFIG_INITRAMFS_SOURCE="../../root" CONFIG_IRQ_CPU=y # CONFIG_LEDS_GPIO is not set +# CONFIG_LEDS_RB750 is not set # CONFIG_LEDS_WNDR3700_USB is not set # CONFIG_M25PXX_USE_FAST_READ is not set # CONFIG_MACH_ALCHEMY is not set diff --git a/target/linux/ar71xx/config-2.6.33 b/target/linux/ar71xx/config-2.6.33 index 40eb555dfb..5d06a9efb7 100644 --- a/target/linux/ar71xx/config-2.6.33 +++ b/target/linux/ar71xx/config-2.6.33 @@ -174,6 +174,7 @@ CONFIG_INLINE_WRITE_UNLOCK_IRQ=y # CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set CONFIG_IRQ_CPU=y # CONFIG_LEDS_GPIO is not set +# CONFIG_LEDS_RB750 is not set # CONFIG_LEDS_WNDR3700_USB is not set CONFIG_LOONGSON_UART_BASE=y # CONFIG_M25PXX_USE_FAST_READ is not set diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb750.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb750.c index 06f48328e4..1698db9146 100644 --- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb750.c +++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb750.c @@ -8,12 +8,54 @@ * by the Free Software Foundation. */ +#include #include #include #include "machtype.h" #include "dev-ap91-eth.h" +static struct rb750_led_data rb750_leds[] = { + { + .name = "rb750:green:act", + .mask = RB750_LED_ACT, + .active_low = 1, + }, { + .name = "rb750:green:port1", + .mask = RB750_LED_PORT5, + .active_low = 1, + }, { + .name = "rb750:green:port2", + .mask = RB750_LED_PORT4, + .active_low = 1, + }, { + .name = "rb750:green:port3", + .mask = RB750_LED_PORT3, + .active_low = 1, + }, { + .name = "rb750:green:port4", + .mask = RB750_LED_PORT2, + .active_low = 1, + }, { + .name = "rb750:green:port5", + .mask = RB750_LED_PORT1, + .active_low = 1, + } +}; + +static struct rb750_led_platform_data rb750_leds_data = { + .num_leds = ARRAY_SIZE(rb750_leds), + .leds = rb750_leds, +}; + +static struct platform_device rb750_leds_device = { + .name = "leds-rb750", + .id = -1, + .dev = { + .platform_data = &rb750_leds_data, + } +}; + int rb750_latch_change(u32 mask_clr, u32 mask_set) { static DEFINE_SPINLOCK(lock); @@ -65,7 +107,14 @@ EXPORT_SYMBOL_GPL(rb750_latch_change); static void __init rb750_setup(void) { + ar71xx_gpio_function_disable(AR724X_GPIO_FUNC_ETH_SWITCH_LED0_EN | + AR724X_GPIO_FUNC_ETH_SWITCH_LED1_EN | + AR724X_GPIO_FUNC_ETH_SWITCH_LED2_EN | + AR724X_GPIO_FUNC_ETH_SWITCH_LED3_EN | + AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN); + ap91_eth_init(NULL); + platform_device_register(&rb750_leds_device); } MIPS_MACHINE(AR71XX_MACH_RB_750, "750i", "MikroTik RouterBOARD 750", diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/mach-rb750.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/mach-rb750.h index 8165da3e61..661ba4ec72 100644 --- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/mach-rb750.h +++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/mach-rb750.h @@ -49,6 +49,18 @@ #define RB750_LED_BITS (RB750_LED_PORT1 | RB750_LED_PORT2 | RB750_LED_PORT3 | \ RB750_LED_PORT4 | RB750_LED_PORT5 | RB750_LED_ACT) +struct rb750_led_data { + char *name; + char *default_trigger; + u32 mask; + int active_low; +}; + +struct rb750_led_platform_data { + int num_leds; + struct rb750_led_data *leds; +}; + int rb750_latch_change(u32 mask_clr, u32 mask_set); #endif /* _MACH_RB750_H */ \ No newline at end of file diff --git a/target/linux/ar71xx/files/drivers/leds/leds-rb750.c b/target/linux/ar71xx/files/drivers/leds/leds-rb750.c new file mode 100644 index 0000000000..2e6064763a --- /dev/null +++ b/target/linux/ar71xx/files/drivers/leds/leds-rb750.c @@ -0,0 +1,140 @@ +/* + * LED driver for the RouterBOARD 750 + * + * Copyright (C) 2010 Gabor Juhos + * + * 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 +#include +#include +#include + +#include + +#define DRV_NAME "leds-rb750" + +struct rb750_led_dev { + struct led_classdev cdev; + u32 mask; + int active_low; +}; + +struct rb750_led_drvdata { + struct rb750_led_dev *led_devs; + int num_leds; +}; + +static inline struct rb750_led_dev *to_rbled(struct led_classdev *led_cdev) +{ + return (struct rb750_led_dev *)container_of(led_cdev, + struct rb750_led_dev, cdev); +} + +static void rb750_led_brightness_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct rb750_led_dev *rbled = to_rbled(led_cdev); + int level; + + level = (value == LED_OFF) ? 0 : 1; + level ^= rbled->active_low; + + if (level) + rb750_latch_change(0, rbled->mask); + else + rb750_latch_change(rbled->mask, 0); +} + +static int __devinit rb750_led_probe(struct platform_device *pdev) +{ + struct rb750_led_platform_data *pdata; + struct rb750_led_drvdata *drvdata; + int ret = 0; + int i; + + pdata = pdev->dev.platform_data; + if (!pdata) + return -EINVAL; + + drvdata = kzalloc(sizeof(struct rb750_led_drvdata) + + sizeof(struct rb750_led_dev) * pdata->num_leds, + GFP_KERNEL); + if (!drvdata) + return -ENOMEM; + + drvdata->num_leds = pdata->num_leds; + drvdata->led_devs = (struct rb750_led_dev *) &drvdata[1]; + + for (i = 0; i < drvdata->num_leds; i++) { + struct rb750_led_dev *rbled = &drvdata->led_devs[i]; + struct rb750_led_data *led_data = &pdata->leds[i]; + + rbled->cdev.name = led_data->name; + rbled->cdev.default_trigger = led_data->default_trigger; + rbled->cdev.brightness_set = rb750_led_brightness_set; + rbled->cdev.brightness = LED_OFF; + + rbled->mask = led_data->mask; + rbled->active_low = !!led_data->active_low; + + ret = led_classdev_register(&pdev->dev, &rbled->cdev); + if (ret) + goto err; + } + + platform_set_drvdata(pdev, drvdata); + return 0; + + err: + for (i = i - 1; i >= 0; i--) + led_classdev_unregister(&drvdata->led_devs[i].cdev); + + kfree(drvdata); + return ret; +} + +static int __devexit rb750_led_remove(struct platform_device *pdev) +{ + struct rb750_led_drvdata *drvdata; + int i; + + drvdata = platform_get_drvdata(pdev); + for (i = 0; i < drvdata->num_leds; i++) + led_classdev_unregister(&drvdata->led_devs[i].cdev); + + kfree(drvdata); + return 0; +} + +static struct platform_driver rb750_led_driver = { + .probe = rb750_led_probe, + .remove = __devexit_p(rb750_led_remove), + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, +}; + +MODULE_ALIAS("platform:leds-rb750"); + +static int __init rb750_led_init(void) +{ + return platform_driver_register(&rb750_led_driver); +} + +static void __exit rb750_led_exit(void) +{ + platform_driver_unregister(&rb750_led_driver); +} + +module_init(rb750_led_init); +module_exit(rb750_led_exit); + +MODULE_DESCRIPTION(DRV_NAME); +MODULE_DESCRIPTION("LED driver for the RouterBOARD 750"); +MODULE_AUTHOR("Gabor Juhos "); +MODULE_LICENSE("GPL v2"); diff --git a/target/linux/ar71xx/patches-2.6.32/207-rb750-led-driver.patch b/target/linux/ar71xx/patches-2.6.32/207-rb750-led-driver.patch new file mode 100644 index 0000000000..a668c2c18f --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.32/207-rb750-led-driver.patch @@ -0,0 +1,23 @@ +--- a/drivers/leds/Kconfig ++++ b/drivers/leds/Kconfig +@@ -243,6 +243,10 @@ + This option enables support for the USB LED found on the + NETGEAR WNDR3700 board. + ++config LEDS_RB750 ++ tristate "LED driver for the Mikrotik RouterBOARD 750" ++ depends on LEDS_CLASS && AR71XX_MACH_RB750 ++ + comment "LED Triggers" + + config LEDS_TRIGGERS +--- a/drivers/leds/Makefile ++++ b/drivers/leds/Makefile +@@ -30,6 +30,7 @@ + obj-$(CONFIG_LEDS_WM8350) += leds-wm8350.o + obj-$(CONFIG_LEDS_PWM) += leds-pwm.o + obj-${CONFIG_LEDS_WNDR3700_USB} += leds-wndr3700-usb.o ++obj-${CONFIG_LEDS_RB750} += leds-rb750.o + + # LED SPI Drivers + obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o diff --git a/target/linux/ar71xx/patches-2.6.33/207-rb750-led-driver.patch b/target/linux/ar71xx/patches-2.6.33/207-rb750-led-driver.patch new file mode 100644 index 0000000000..a668c2c18f --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.33/207-rb750-led-driver.patch @@ -0,0 +1,23 @@ +--- a/drivers/leds/Kconfig ++++ b/drivers/leds/Kconfig +@@ -243,6 +243,10 @@ + This option enables support for the USB LED found on the + NETGEAR WNDR3700 board. + ++config LEDS_RB750 ++ tristate "LED driver for the Mikrotik RouterBOARD 750" ++ depends on LEDS_CLASS && AR71XX_MACH_RB750 ++ + comment "LED Triggers" + + config LEDS_TRIGGERS +--- a/drivers/leds/Makefile ++++ b/drivers/leds/Makefile +@@ -30,6 +30,7 @@ + obj-$(CONFIG_LEDS_WM8350) += leds-wm8350.o + obj-$(CONFIG_LEDS_PWM) += leds-pwm.o + obj-${CONFIG_LEDS_WNDR3700_USB} += leds-wndr3700-usb.o ++obj-${CONFIG_LEDS_RB750} += leds-rb750.o + + # LED SPI Drivers + obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o -- 2.30.2