1// SPDX-License-Identifier: GPL-2.0
 2//
 3// Audio Mute LED trigger
 4//
 5
 6#include <linux/kernel.h>
 7#include <linux/leds.h>
 8#include <linux/module.h>
 9#include "../leds.h"
10
 
11static enum led_brightness audio_state[NUM_AUDIO_LEDS];
12
13static int ledtrig_audio_mute_activate(struct led_classdev *led_cdev)
14{
15	led_set_brightness_nosleep(led_cdev, audio_state[LED_AUDIO_MUTE]);
16	return 0;
17}
18
19static int ledtrig_audio_micmute_activate(struct led_classdev *led_cdev)
20{
21	led_set_brightness_nosleep(led_cdev, audio_state[LED_AUDIO_MICMUTE]);
22	return 0;
23}
24
25static struct led_trigger ledtrig_audio[NUM_AUDIO_LEDS] = {
26	[LED_AUDIO_MUTE] = {
27		.name     = "audio-mute",
28		.activate = ledtrig_audio_mute_activate,
29	},
30	[LED_AUDIO_MICMUTE] = {
31		.name     = "audio-micmute",
32		.activate = ledtrig_audio_micmute_activate,
33	},
34};
35
36enum led_brightness ledtrig_audio_get(enum led_audio type)
37{
38	return audio_state[type];
39}
40EXPORT_SYMBOL_GPL(ledtrig_audio_get);
41
42void ledtrig_audio_set(enum led_audio type, enum led_brightness state)
43{
44	audio_state[type] = state;
45	led_trigger_event(&ledtrig_audio[type], state);
46}
47EXPORT_SYMBOL_GPL(ledtrig_audio_set);
48
49static int __init ledtrig_audio_init(void)
50{
51	led_trigger_register(&ledtrig_audio[LED_AUDIO_MUTE]);
52	led_trigger_register(&ledtrig_audio[LED_AUDIO_MICMUTE]);
 
 
53	return 0;
54}
55module_init(ledtrig_audio_init);
56
57static void __exit ledtrig_audio_exit(void)
58{
59	led_trigger_unregister(&ledtrig_audio[LED_AUDIO_MUTE]);
60	led_trigger_unregister(&ledtrig_audio[LED_AUDIO_MICMUTE]);
61}
62module_exit(ledtrig_audio_exit);
63
64MODULE_DESCRIPTION("LED trigger for audio mute control");
65MODULE_LICENSE("GPL v2");

 1// SPDX-License-Identifier: GPL-2.0
 2//
 3// Audio Mute LED trigger
 4//
 5
 6#include <linux/kernel.h>
 7#include <linux/leds.h>
 8#include <linux/module.h>
 
 9
10static struct led_trigger *ledtrig_audio[NUM_AUDIO_LEDS];
11static enum led_brightness audio_state[NUM_AUDIO_LEDS];
12
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
13enum led_brightness ledtrig_audio_get(enum led_audio type)
14{
15	return audio_state[type];
16}
17EXPORT_SYMBOL_GPL(ledtrig_audio_get);
18
19void ledtrig_audio_set(enum led_audio type, enum led_brightness state)
20{
21	audio_state[type] = state;
22	led_trigger_event(ledtrig_audio[type], state);
23}
24EXPORT_SYMBOL_GPL(ledtrig_audio_set);
25
26static int __init ledtrig_audio_init(void)
27{
28	led_trigger_register_simple("audio-mute",
29				    &ledtrig_audio[LED_AUDIO_MUTE]);
30	led_trigger_register_simple("audio-micmute",
31				    &ledtrig_audio[LED_AUDIO_MICMUTE]);
32	return 0;
33}
34module_init(ledtrig_audio_init);
35
36static void __exit ledtrig_audio_exit(void)
37{
38	led_trigger_unregister_simple(ledtrig_audio[LED_AUDIO_MUTE]);
39	led_trigger_unregister_simple(ledtrig_audio[LED_AUDIO_MICMUTE]);
40}
41module_exit(ledtrig_audio_exit);
42
43MODULE_DESCRIPTION("LED trigger for audio mute control");
44MODULE_LICENSE("GPL v2");