1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * LED Core
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright 2005 Openedhand Ltd.
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Author: Richard Purdie <rpurdie@openedhand.com>
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun #ifndef __LEDS_H_INCLUDED
10*4882a593Smuzhiyun #define __LEDS_H_INCLUDED
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <linux/rwsem.h>
13*4882a593Smuzhiyun #include <linux/leds.h>
14*4882a593Smuzhiyun
led_get_brightness(struct led_classdev * led_cdev)15*4882a593Smuzhiyun static inline int led_get_brightness(struct led_classdev *led_cdev)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun return led_cdev->brightness;
18*4882a593Smuzhiyun }
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun void led_init_core(struct led_classdev *led_cdev);
21*4882a593Smuzhiyun void led_stop_software_blink(struct led_classdev *led_cdev);
22*4882a593Smuzhiyun void led_set_brightness_nopm(struct led_classdev *led_cdev,
23*4882a593Smuzhiyun enum led_brightness value);
24*4882a593Smuzhiyun void led_set_brightness_nosleep(struct led_classdev *led_cdev,
25*4882a593Smuzhiyun enum led_brightness value);
26*4882a593Smuzhiyun ssize_t led_trigger_read(struct file *filp, struct kobject *kobj,
27*4882a593Smuzhiyun struct bin_attribute *attr, char *buf,
28*4882a593Smuzhiyun loff_t pos, size_t count);
29*4882a593Smuzhiyun ssize_t led_trigger_write(struct file *filp, struct kobject *kobj,
30*4882a593Smuzhiyun struct bin_attribute *bin_attr, char *buf,
31*4882a593Smuzhiyun loff_t pos, size_t count);
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun extern struct rw_semaphore leds_list_lock;
34*4882a593Smuzhiyun extern struct list_head leds_list;
35*4882a593Smuzhiyun extern struct list_head trigger_list;
36*4882a593Smuzhiyun extern const char * const led_colors[LED_COLOR_ID_MAX];
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun #endif /* __LEDS_H_INCLUDED */
39