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path: root/sound/pci/hda/hda_generic.c
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Diffstat (limited to 'sound/pci/hda/hda_generic.c')
-rw-r--r--sound/pci/hda/hda_generic.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 276150f29cda..4095cd7c56c6 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -29,6 +29,7 @@
#include <linux/string.h>
#include <linux/bitops.h>
#include <linux/module.h>
+#include <linux/leds.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/tlv.h>
@@ -4035,6 +4036,36 @@ int snd_hda_gen_add_micmute_led(struct hda_codec *codec,
}
EXPORT_SYMBOL_GPL(snd_hda_gen_add_micmute_led);
+#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_AUDIO)
+static void call_ledtrig_micmute(struct hda_codec *codec)
+{
+ struct hda_gen_spec *spec = codec->spec;
+
+ ledtrig_audio_set(LED_AUDIO_MICMUTE,
+ spec->micmute_led.led_value ? LED_ON : LED_OFF);
+}
+#endif
+
+/**
+ * snd_hda_gen_fixup_micmute_led - A fixup for mic-mute LED trigger
+ *
+ * Pass this function to the quirk entry if another driver supports the
+ * audio mic-mute LED trigger. Then this will bind the mixer capture switch
+ * change with the LED.
+ *
+ * Note that this fixup has to be called after other fixup that sets
+ * cap_sync_hook. Otherwise the chaining wouldn't work.
+ */
+void snd_hda_gen_fixup_micmute_led(struct hda_codec *codec,
+ const struct hda_fixup *fix, int action)
+{
+#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_AUDIO)
+ if (action == HDA_FIXUP_ACT_PROBE)
+ snd_hda_gen_add_micmute_led(codec, call_ledtrig_micmute);
+#endif
+}
+EXPORT_SYMBOL_GPL(snd_hda_gen_fixup_micmute_led);
+
/*
* parse digital I/Os and set up NIDs in BIOS auto-parse mode
*/