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// SPDX-License-Identifier: GPL-2.0
//
// Audio Mute LED trigger
//
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/module.h>
#include "../leds.h"
static enum led_brightness audio_state[NUM_AUDIO_LEDS];
static int ledtrig_audio_mute_activate(struct led_classdev *led_cdev)
{
led_set_brightness_nosleep(led_cdev, audio_state[LED_AUDIO_MUTE]);
return 0;
}
static int ledtrig_audio_micmute_activate(struct led_classdev *led_cdev)
{
led_set_brightness_nosleep(led_cdev, audio_state[LED_AUDIO_MICMUTE]);
return 0;
}
static struct led_trigger ledtrig_audio[NUM_AUDIO_LEDS] = {
[LED_AUDIO_MUTE] = {
.name = "audio-mute",
.activate = ledtrig_audio_mute_activate,
},
[LED_AUDIO_MICMUTE] = {
.name = "audio-micmute",
.activate = ledtrig_audio_micmute_activate,
},
};
enum led_brightness ledtrig_audio_get(enum led_audio type)
{
return audio_state[type];
}
EXPORT_SYMBOL_GPL(ledtrig_audio_get);
void ledtrig_audio_set(enum led_audio type, enum led_brightness state)
{
audio_state[type] = state;
led_trigger_event(&ledtrig_audio[type], state);
}
EXPORT_SYMBOL_GPL(ledtrig_audio_set);
static int __init ledtrig_audio_init(void)
{
led_trigger_register(&ledtrig_audio[LED_AUDIO_MUTE]);
led_trigger_register(&ledtrig_audio[LED_AUDIO_MICMUTE]);
return 0;
}
module_init(ledtrig_audio_init);
static void __exit ledtrig_audio_exit(void)
{
led_trigger_unregister(&ledtrig_audio[LED_AUDIO_MUTE]);
led_trigger_unregister(&ledtrig_audio[LED_AUDIO_MICMUTE]);
}
module_exit(ledtrig_audio_exit);
MODULE_DESCRIPTION("LED trigger for audio mute control");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("ledtrig:audio-mute");
MODULE_ALIAS("ledtrig:audio-micmute");
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