4 * Copyright 2005 Openedhand Ltd.
6 * Author: Richard Purdie <rpurdie@openedhand.com>
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.
13 #ifndef __LEDS_H_INCLUDED
14 #define __LEDS_H_INCLUDED
16 #include <linux/device.h>
17 #include <linux/rwsem.h>
18 #include <linux/leds.h>
20 static inline void led_set_brightness_async(struct led_classdev
*led_cdev
,
21 enum led_brightness value
)
23 led_cdev
->brightness
= min(value
, led_cdev
->max_brightness
);
25 if (!(led_cdev
->flags
& LED_SUSPENDED
))
26 led_cdev
->brightness_set(led_cdev
, value
);
29 static inline int led_set_brightness_sync(struct led_classdev
*led_cdev
,
30 enum led_brightness value
)
34 led_cdev
->brightness
= min(value
, led_cdev
->max_brightness
);
36 if (!(led_cdev
->flags
& LED_SUSPENDED
))
37 ret
= led_cdev
->brightness_set_sync(led_cdev
,
38 led_cdev
->brightness
);
42 static inline int led_get_brightness(struct led_classdev
*led_cdev
)
44 return led_cdev
->brightness
;
47 void led_stop_software_blink(struct led_classdev
*led_cdev
);
49 extern struct rw_semaphore leds_list_lock
;
50 extern struct list_head leds_list
;
52 #ifdef CONFIG_LEDS_TRIGGERS
53 void led_trigger_set_default(struct led_classdev
*led_cdev
);
54 void led_trigger_set(struct led_classdev
*led_cdev
,
55 struct led_trigger
*trigger
);
56 void led_trigger_remove(struct led_classdev
*led_cdev
);
58 static inline void *led_get_trigger_data(struct led_classdev
*led_cdev
)
60 return led_cdev
->trigger_data
;
64 #define led_trigger_set_default(x) do {} while (0)
65 #define led_trigger_set(x, y) do {} while (0)
66 #define led_trigger_remove(x) do {} while (0)
67 #define led_get_trigger_data(x) (NULL)
70 ssize_t
led_trigger_store(struct device
*dev
, struct device_attribute
*attr
,
71 const char *buf
, size_t count
);
72 ssize_t
led_trigger_show(struct device
*dev
, struct device_attribute
*attr
,
75 #endif /* __LEDS_H_INCLUDED */