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