/* * LED Core * * Copyright 2005 Openedhand Ltd. * * Author: Richard Purdie <rpurdie@openedhand.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. * */ #ifndef __LEDS_H_INCLUDED #define __LEDS_H_INCLUDED #include <linux/device.h> #include <linux/rwsem.h> #include <linux/leds.h> static inline void __led_set_brightness(struct led_classdev *led_cdev, enum led_brightness value) { if (value > led_cdev->max_brightness) value = led_cdev->max_brightness; led_cdev->brightness = value; if (!(led_cdev->flags & LED_SUSPENDED)) led_cdev->brightness_set(led_cdev, value); } static inline int led_get_brightness(struct led_classdev *led_cdev) { return led_cdev->brightness; } void led_stop_software_blink(struct led_classdev *led_cdev); extern struct rw_semaphore leds_list_lock; extern struct list_head leds_list; #ifdef CONFIG_LEDS_TRIGGERS void led_trigger_set_default(struct led_classdev *led_cdev); void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger); void led_trigger_remove(struct led_classdev *led_cdev); static inline void *led_get_trigger_data(struct led_classdev *led_cdev) { return led_cdev->trigger_data; } #else #define led_trigger_set_default(x) do {} while (0) #define led_trigger_set(x, y) do {} while (0) #define led_trigger_remove(x) do {} while (0) #define led_get_trigger_data(x) (NULL) #endif ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count); ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr, char *buf); #endif /* __LEDS_H_INCLUDED */