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 | ||
4d71a4a1 | 20 | static inline void led_set_brightness_async(struct led_classdev *led_cdev, |
c72a1d60 RP |
21 | enum led_brightness value) |
22 | { | |
56d06fde GM |
23 | value = min(value, led_cdev->max_brightness); |
24 | led_cdev->brightness = value; | |
4d71a4a1 | 25 | |
c72a1d60 RP |
26 | if (!(led_cdev->flags & LED_SUSPENDED)) |
27 | led_cdev->brightness_set(led_cdev, value); | |
28 | } | |
29 | ||
4d71a4a1 JA |
30 | static inline int led_set_brightness_sync(struct led_classdev *led_cdev, |
31 | enum led_brightness value) | |
32 | { | |
33 | int ret = 0; | |
34 | ||
35 | led_cdev->brightness = min(value, led_cdev->max_brightness); | |
36 | ||
37 | if (!(led_cdev->flags & LED_SUSPENDED)) | |
38 | ret = led_cdev->brightness_set_sync(led_cdev, | |
39 | led_cdev->brightness); | |
40 | return ret; | |
41 | } | |
42 | ||
0013b23d NM |
43 | static inline int led_get_brightness(struct led_classdev *led_cdev) |
44 | { | |
45 | return led_cdev->brightness; | |
46 | } | |
47 | ||
d23a22a7 FB |
48 | void led_stop_software_blink(struct led_classdev *led_cdev); |
49 | ||
72f8da32 | 50 | extern struct rw_semaphore leds_list_lock; |
c72a1d60 RP |
51 | extern struct list_head leds_list; |
52 | ||
c3bc9956 RP |
53 | #ifdef CONFIG_LEDS_TRIGGERS |
54 | void led_trigger_set_default(struct led_classdev *led_cdev); | |
55 | void led_trigger_set(struct led_classdev *led_cdev, | |
56 | struct led_trigger *trigger); | |
0013b23d | 57 | void led_trigger_remove(struct led_classdev *led_cdev); |
fff26f81 EH |
58 | |
59 | static inline void *led_get_trigger_data(struct led_classdev *led_cdev) | |
60 | { | |
61 | return led_cdev->trigger_data; | |
62 | } | |
63 | ||
c3bc9956 | 64 | #else |
4d404fd5 NM |
65 | #define led_trigger_set_default(x) do {} while (0) |
66 | #define led_trigger_set(x, y) do {} while (0) | |
67 | #define led_trigger_remove(x) do {} while (0) | |
fff26f81 | 68 | #define led_get_trigger_data(x) (NULL) |
c3bc9956 RP |
69 | #endif |
70 | ||
f8a7c6fe RP |
71 | ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr, |
72 | const char *buf, size_t count); | |
73 | ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr, | |
74 | char *buf); | |
c3bc9956 | 75 | |
c72a1d60 | 76 | #endif /* __LEDS_H_INCLUDED */ |