diff options
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/leds/Makefile | 1 | ||||
| -rw-r--r-- | drivers/leds/led-class.c | 28 | ||||
| -rw-r--r-- | drivers/leds/led-triggers.c | 1 | ||||
| -rw-r--r-- | drivers/leds/leds-ams-delta.c | 1 | ||||
| -rw-r--r-- | drivers/leds/leds-locomo.c | 2 | ||||
| -rw-r--r-- | drivers/leds/leds-net48xx.c | 9 | ||||
| -rw-r--r-- | drivers/leds/leds-wrap.c | 142 | ||||
| -rw-r--r-- | drivers/leds/ledtrig-ide-disk.c | 1 | ||||
| -rw-r--r-- | drivers/leds/ledtrig-timer.c | 17 |
10 files changed, 193 insertions, 15 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 9c39b98..176142c 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -76,6 +76,12 @@ config LEDS_NET48XX This option enables support for the Soekris net4801 and net4826 error LED. +config LEDS_WRAP + tristate "LED Support for the WRAP series LEDs" + depends on LEDS_CLASS && SCx200_GPIO + help + This option enables support for the PCEngines WRAP programmable LEDs. + comment "LED Triggers" config LEDS_TRIGGERS diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 6aa2aed..500de3dc 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_LEDS_TOSA) += leds-tosa.o obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o +obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o # LED Triggers obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index d424b44..3c17112 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -91,6 +91,8 @@ EXPORT_SYMBOL_GPL(led_classdev_resume); */ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev) { + int rc; + led_cdev->class_dev = class_device_create(leds_class, NULL, 0, parent, "%s", led_cdev->name); if (unlikely(IS_ERR(led_cdev->class_dev))) @@ -99,8 +101,10 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev) class_set_devdata(led_cdev->class_dev, led_cdev); /* register the attributes */ - class_device_create_file(led_cdev->class_dev, - &class_device_attr_brightness); + rc = class_device_create_file(led_cdev->class_dev, + &class_device_attr_brightness); + if (rc) + goto err_out; /* add to the list of leds */ write_lock(&leds_list_lock); @@ -110,22 +114,34 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev) #ifdef CONFIG_LEDS_TRIGGERS rwlock_init(&led_cdev->trigger_lock); - led_trigger_set_default(led_cdev); + rc = class_device_create_file(led_cdev->class_dev, + &class_device_attr_trigger); + if (rc) + goto err_out_led_list; - class_device_create_file(led_cdev->class_dev, - &class_device_attr_trigger); + led_trigger_set_default(led_cdev); #endif printk(KERN_INFO "Registered led device: %s\n", led_cdev->class_dev->class_id); return 0; + +#ifdef CONFIG_LEDS_TRIGGERS +err_out_led_list: + class_device_remove_file(led_cdev->class_dev, + &class_device_attr_brightness); + list_del(&led_cdev->node); +#endif +err_out: + class_device_unregister(led_cdev->class_dev); + return rc; } EXPORT_SYMBOL_GPL(led_classdev_register); /** * led_classdev_unregister - unregisters a object of led_properties class. - * @led_cdev: the led device to unreigister + * @led_cdev: the led device to unregister * * Unregisters a previously registered via led_classdev_register object. */ diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index 47f0ff1..454fb09 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -125,6 +125,7 @@ void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger) write_unlock_irqrestore(&led_cdev->trigger->leddev_list_lock, flags); if (led_cdev->trigger->deactivate) led_cdev->trigger->deactivate(led_cdev); + led_set_brightness(led_cdev, LED_OFF); } if (trigger) { write_lock_irqsave(&trigger->leddev_list_lock, flags); diff --git a/drivers/leds/leds-ams-delta.c b/drivers/leds/leds-ams-delta.c index e9f0611..599878c 100644 --- a/drivers/leds/leds-ams-delta.c +++ b/drivers/leds/leds-ams-delta.c @@ -8,7 +8,6 @@ * published by the Free Software Foundation. */ -#include <linux/config.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c index 3b87951..6f2d449 100644 --- a/drivers/leds/leds-locomo.c +++ b/drivers/leds/leds-locomo.c @@ -1,5 +1,5 @@ /* - * linux/drivers/leds/locomo.c + * linux/drivers/leds/leds-locomo.c * * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu> * diff --git a/drivers/leds/leds-net48xx.c b/drivers/leds/leds-net48xx.c index 713c4a8..45ba3d4 100644 --- a/drivers/leds/leds-net48xx.c +++ b/drivers/leds/leds-net48xx.c @@ -16,6 +16,7 @@ #include <linux/leds.h> #include <linux/err.h> #include <asm/io.h> +#include <linux/nsc_gpio.h> #include <linux/scx200_gpio.h> #define DRVNAME "net48xx-led" @@ -26,10 +27,7 @@ static struct platform_device *pdev; static void net48xx_error_led_set(struct led_classdev *led_cdev, enum led_brightness value) { - if (value) - scx200_gpio_set_high(NET48XX_ERROR_LED_GPIO); - else - scx200_gpio_set_low(NET48XX_ERROR_LED_GPIO); + scx200_gpio_ops.gpio_set(NET48XX_ERROR_LED_GPIO, value ? 1 : 0); } static struct led_classdev net48xx_error_led = { @@ -81,7 +79,8 @@ static int __init net48xx_led_init(void) { int ret; - if (!scx200_gpio_present()) { + /* small hack, but scx200_gpio doesn't set .dev if the probe fails */ + if (!scx200_gpio_ops.dev) { ret = -ENODEV; goto out; } diff --git a/drivers/leds/leds-wrap.c b/drivers/leds/leds-wrap.c new file mode 100644 index 0000000..27fb2d8 --- /dev/null +++ b/drivers/leds/leds-wrap.c @@ -0,0 +1,142 @@ +/* + * LEDs driver for PCEngines WRAP + * + * Copyright (C) 2006 Kristian Kielhofner <kris@krisk.org> + * + * Based on leds-net48xx.c + * + * 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/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <linux/err.h> +#include <asm/io.h> +#include <linux/scx200_gpio.h> + +#define DRVNAME "wrap-led" +#define WRAP_ERROR_LED_GPIO 3 +#define WRAP_EXTRA_LED_GPIO 18 + +static struct platform_device *pdev; + +static void wrap_error_led_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + if (value) + scx200_gpio_set_low(WRAP_ERROR_LED_GPIO); + else + scx200_gpio_set_high(WRAP_ERROR_LED_GPIO); +} + +static void wrap_extra_led_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + if (value) + scx200_gpio_set_low(WRAP_EXTRA_LED_GPIO); + else + scx200_gpio_set_high(WRAP_EXTRA_LED_GPIO); +} + +static struct led_classdev wrap_error_led = { + .name = "wrap:error", + .brightness_set = wrap_error_led_set, +}; + +static struct led_classdev wrap_extra_led = { + .name = "wrap:extra", + .brightness_set = wrap_extra_led_set, +}; + +#ifdef CONFIG_PM +static int wrap_led_suspend(struct platform_device *dev, + pm_message_t state) +{ + led_classdev_suspend(&wrap_error_led); + led_classdev_suspend(&wrap_extra_led); + return 0; +} + +static int wrap_led_resume(struct platform_device *dev) +{ + led_classdev_resume(&wrap_error_led); + led_classdev_resume(&wrap_extra_led); + return 0; +} +#else +#define wrap_led_suspend NULL +#define wrap_led_resume NULL +#endif + +static int wrap_led_probe(struct platform_device *pdev) +{ + int ret; + + ret = led_classdev_register(&pdev->dev, &wrap_error_led); + if (ret == 0) { + ret = led_classdev_register(&pdev->dev, &wrap_extra_led); + if (ret < 0) + led_classdev_unregister(&wrap_error_led); + } + return ret; +} + +static int wrap_led_remove(struct platform_device *pdev) +{ + led_classdev_unregister(&wrap_error_led); + led_classdev_unregister(&wrap_extra_led); + return 0; +} + +static struct platform_driver wrap_led_driver = { + .probe = wrap_led_probe, + .remove = wrap_led_remove, + .suspend = wrap_led_suspend, + .resume = wrap_led_resume, + .driver = { + .name = DRVNAME, + .owner = THIS_MODULE, + }, +}; + +static int __init wrap_led_init(void) +{ + int ret; + + if (!scx200_gpio_present()) { + ret = -ENODEV; + goto out; + } + + ret = platform_driver_register(&wrap_led_driver); + if (ret < 0) + goto out; + + pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0); + if (IS_ERR(pdev)) { + ret = PTR_ERR(pdev); + platform_driver_unregister(&wrap_led_driver); + goto out; + } + +out: + return ret; +} + +static void __exit wrap_led_exit(void) +{ + platform_device_unregister(pdev); + platform_driver_unregister(&wrap_led_driver); +} + +module_init(wrap_led_init); +module_exit(wrap_led_exit); + +MODULE_AUTHOR("Kristian Kielhofner <kris@krisk.org>"); +MODULE_DESCRIPTION("PCEngines WRAP LED driver"); +MODULE_LICENSE("GPL"); + diff --git a/drivers/leds/ledtrig-ide-disk.c b/drivers/leds/ledtrig-ide-disk.c index fa65188..54b155c 100644 --- a/drivers/leds/ledtrig-ide-disk.c +++ b/drivers/leds/ledtrig-ide-disk.c @@ -12,6 +12,7 @@ */ #include <linux/module.h> +#include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/timer.h> diff --git a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c index 179c287..d756bdb 100644 --- a/drivers/leds/ledtrig-timer.c +++ b/drivers/leds/ledtrig-timer.c @@ -12,6 +12,7 @@ */ #include <linux/module.h> +#include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/list.h> @@ -123,6 +124,7 @@ static CLASS_DEVICE_ATTR(delay_off, 0644, led_delay_off_show, static void timer_trig_activate(struct led_classdev *led_cdev) { struct timer_trig_data *timer_data; + int rc; timer_data = kzalloc(sizeof(struct timer_trig_data), GFP_KERNEL); if (!timer_data) @@ -134,10 +136,21 @@ static void timer_trig_activate(struct led_classdev *led_cdev) timer_data->timer.function = led_timer_function; timer_data->timer.data = (unsigned long) led_cdev; - class_device_create_file(led_cdev->class_dev, + rc = class_device_create_file(led_cdev->class_dev, &class_device_attr_delay_on); - class_device_create_file(led_cdev->class_dev, + if (rc) goto err_out; + rc = class_device_create_file(led_cdev->class_dev, &class_device_attr_delay_off); + if (rc) goto err_out_delayon; + + return; + +err_out_delayon: + class_device_remove_file(led_cdev->class_dev, + &class_device_attr_delay_on); +err_out: + led_cdev->trigger_data = NULL; + kfree(timer_data); } static void timer_trig_deactivate(struct led_classdev *led_cdev) |