1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * LED Core
4 *
5 * Copyright 2005 Openedhand Ltd.
6 *
7 * Author: Richard Purdie <rpurdie@openedhand.com>
8 */
9 #ifndef __LEDS_H_INCLUDED
10 #define __LEDS_H_INCLUDED
11
12 #include <linux/rwsem.h>
13 #include <linux/leds.h>
14
led_get_brightness(struct led_classdev * led_cdev)15 static inline int led_get_brightness(struct led_classdev *led_cdev)
16 {
17 return led_cdev->brightness;
18 }
19
20 void led_init_core(struct led_classdev *led_cdev);
21 void led_stop_software_blink(struct led_classdev *led_cdev);
22 void led_set_brightness_nopm(struct led_classdev *led_cdev, unsigned int value);
23 void led_set_brightness_nosleep(struct led_classdev *led_cdev, unsigned int value);
24 ssize_t led_trigger_read(struct file *filp, struct kobject *kobj,
25 struct bin_attribute *attr, char *buf,
26 loff_t pos, size_t count);
27 ssize_t led_trigger_write(struct file *filp, struct kobject *kobj,
28 struct bin_attribute *bin_attr, char *buf,
29 loff_t pos, size_t count);
30
31 extern struct rw_semaphore leds_list_lock;
32 extern struct list_head leds_list;
33 extern struct list_head trigger_list;
34 extern const char * const led_colors[LED_COLOR_ID_MAX];
35
36 #endif /* __LEDS_H_INCLUDED */
37