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Thomas Gleixnerd2912cb2019-06-04 10:11:33 +02001/* SPDX-License-Identifier: GPL-2.0-only */
Richard Purdiec72a1d62006-03-31 02:31:04 -08002/*
3 * LED Core
4 *
5 * Copyright 2005 Openedhand Ltd.
6 *
7 * Author: Richard Purdie <rpurdie@openedhand.com>
Richard Purdiec72a1d62006-03-31 02:31:04 -08008 */
9#ifndef __LEDS_H_INCLUDED
10#define __LEDS_H_INCLUDED
11
Richard Purdie72f8da32007-12-31 23:09:44 +000012#include <linux/rwsem.h>
Richard Purdiec72a1d62006-03-31 02:31:04 -080013#include <linux/leds.h>
14
Németh Márton0013b232008-03-09 20:54:37 +000015static inline int led_get_brightness(struct led_classdev *led_cdev)
16{
17 return led_cdev->brightness;
18}
19
Jacek Anaszewski757b06a2015-09-28 14:38:04 +020020void led_init_core(struct led_classdev *led_cdev);
Fabio Baltierid23a22a2012-08-15 21:44:34 +080021void led_stop_software_blink(struct led_classdev *led_cdev);
Abanoub Samehaf0bfab2020-12-11 22:42:08 +020022void led_set_brightness_nopm(struct led_classdev *led_cdev, unsigned int value);
23void led_set_brightness_nosleep(struct led_classdev *led_cdev, unsigned int value);
Akinobu Mita11f70002019-09-29 23:18:49 +090024ssize_t led_trigger_read(struct file *filp, struct kobject *kobj,
25 struct bin_attribute *attr, char *buf,
26 loff_t pos, size_t count);
27ssize_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);
Fabio Baltierid23a22a2012-08-15 21:44:34 +080030
Richard Purdie72f8da32007-12-31 23:09:44 +000031extern struct rw_semaphore leds_list_lock;
Richard Purdiec72a1d62006-03-31 02:31:04 -080032extern struct list_head leds_list;
Ezequiel Garciaba93cdc2016-04-28 19:03:38 -030033extern struct list_head trigger_list;
Jacek Anaszewskibb4e9af2019-06-09 20:19:04 +020034extern const char * const led_colors[LED_COLOR_ID_MAX];
Richard Purdiec72a1d62006-03-31 02:31:04 -080035
Richard Purdiec72a1d62006-03-31 02:31:04 -080036#endif /* __LEDS_H_INCLUDED */