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Richard Purdiec72a1d62006-03-31 02:31:04 -08001/*
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
Richard Purdie72f8da32007-12-31 23:09:44 +000016#include <linux/rwsem.h>
Richard Purdiec72a1d62006-03-31 02:31:04 -080017#include <linux/leds.h>
18
Jacek Anaszewski4d71a4a2014-11-14 02:50:18 -080019static inline void led_set_brightness_async(struct led_classdev *led_cdev,
Richard Purdiec72a1d62006-03-31 02:31:04 -080020 enum led_brightness value)
21{
Gabriele Mazzotta56d06fd2014-12-23 10:59:23 -080022 value = min(value, led_cdev->max_brightness);
23 led_cdev->brightness = value;
Jacek Anaszewski4d71a4a2014-11-14 02:50:18 -080024
Richard Purdiec72a1d62006-03-31 02:31:04 -080025 if (!(led_cdev->flags & LED_SUSPENDED))
26 led_cdev->brightness_set(led_cdev, value);
27}
28
Jacek Anaszewski4d71a4a2014-11-14 02:50:18 -080029static inline int led_set_brightness_sync(struct led_classdev *led_cdev,
30 enum led_brightness value)
31{
32 int ret = 0;
33
34 led_cdev->brightness = min(value, led_cdev->max_brightness);
35
36 if (!(led_cdev->flags & LED_SUSPENDED))
37 ret = led_cdev->brightness_set_sync(led_cdev,
38 led_cdev->brightness);
39 return ret;
40}
41
Németh Márton0013b232008-03-09 20:54:37 +000042static inline int led_get_brightness(struct led_classdev *led_cdev)
43{
44 return led_cdev->brightness;
45}
46
Fabio Baltierid23a22a2012-08-15 21:44:34 +080047void led_stop_software_blink(struct led_classdev *led_cdev);
48
Richard Purdie72f8da32007-12-31 23:09:44 +000049extern struct rw_semaphore leds_list_lock;
Richard Purdiec72a1d62006-03-31 02:31:04 -080050extern struct list_head leds_list;
51
Richard Purdiec72a1d62006-03-31 02:31:04 -080052#endif /* __LEDS_H_INCLUDED */