git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| c72a1d60 RP |
1 | /* |
| 2 | * LED Core | |
| 3 | * | |
| 4 | * Copyright 2005 Openedhand Ltd. | |
| 5 | * | |
| 6 | * Author: Richard Purdie <rpurdie@openedhand.com> | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | * | |
| 12 | */ | |
| 13 | #ifndef __LEDS_H_INCLUDED | |
| 14 | #define __LEDS_H_INCLUDED | |
| 15 | ||
| f8a7c6fe | 16 | #include <linux/device.h> |
| 72f8da32 | 17 | #include <linux/rwsem.h> |
| c72a1d60 RP |
18 | #include <linux/leds.h> |
| 19 | ||
| 20 | static inline void led_set_brightness(struct led_classdev *led_cdev, | |
| 21 | enum led_brightness value) | |
| 22 | { | |
| 1bd465e6 GL |
23 | if (value > led_cdev->max_brightness) |
| 24 | value = led_cdev->max_brightness; | |
| c72a1d60 RP |
25 | led_cdev->brightness = value; |
| 26 | if (!(led_cdev->flags & LED_SUSPENDED)) | |
| 27 | led_cdev->brightness_set(led_cdev, value); | |
| 28 | } | |
| 29 | ||
| 0013b23d NM |
30 | static inline int led_get_brightness(struct led_classdev *led_cdev) |
| 31 | { | |
| 32 | return led_cdev->brightness; | |
| 33 | } | |
| 34 | ||
| 72f8da32 | 35 | extern struct rw_semaphore leds_list_lock; |
| c72a1d60 RP |
36 | extern struct list_head leds_list; |
| 37 | ||
| c3bc9956 RP |
38 | #ifdef CONFIG_LEDS_TRIGGERS |
| 39 | void led_trigger_set_default(struct led_classdev *led_cdev); | |
| 40 | void led_trigger_set(struct led_classdev *led_cdev, | |
| 41 | struct led_trigger *trigger); | |
| 0013b23d | 42 | void led_trigger_remove(struct led_classdev *led_cdev); |
| c3bc9956 | 43 | #else |
| 4d404fd5 NM |
44 | #define led_trigger_set_default(x) do {} while (0) |
| 45 | #define led_trigger_set(x, y) do {} while (0) | |
| 46 | #define led_trigger_remove(x) do {} while (0) | |
| c3bc9956 RP |
47 | #endif |
| 48 | ||
| f8a7c6fe RP |
49 | ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr, |
| 50 | const char *buf, size_t count); | |
| 51 | ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr, | |
| 52 | char *buf); | |
| c3bc9956 | 53 | |
| c72a1d60 | 54 | #endif /* __LEDS_H_INCLUDED */ |