ALSA: hda - Move mic mute LED helper to the generic parser
Move the code for setting up and controlling the mic mute LED hook
from dell-wmi helper to the generic parser, so that it can be referred
from the multiple driver codes.
No functional change.
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index db773e2..cdce9ce 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -3900,6 +3900,146 @@ static int parse_mic_boost(struct hda_codec *codec)
}
/*
+ * mic mute LED hook helpers
+ */
+enum {
+ MICMUTE_LED_ON,
+ MICMUTE_LED_OFF,
+ MICMUTE_LED_FOLLOW_CAPTURE,
+ MICMUTE_LED_FOLLOW_MUTE,
+};
+
+static void call_micmute_led_update(struct hda_codec *codec)
+{
+ struct hda_gen_spec *spec = codec->spec;
+ unsigned int val;
+
+ switch (spec->micmute_led.led_mode) {
+ case MICMUTE_LED_ON:
+ val = 1;
+ break;
+ case MICMUTE_LED_OFF:
+ val = 0;
+ break;
+ case MICMUTE_LED_FOLLOW_CAPTURE:
+ val = spec->micmute_led.capture;
+ break;
+ case MICMUTE_LED_FOLLOW_MUTE:
+ default:
+ val = !spec->micmute_led.capture;
+ break;
+ }
+
+ if (val == spec->micmute_led.led_value)
+ return;
+ spec->micmute_led.led_value = val;
+ if (spec->micmute_led.update)
+ spec->micmute_led.update(codec);
+}
+
+static void update_micmute_led(struct hda_codec *codec,
+ struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_gen_spec *spec = codec->spec;
+
+ if (spec->micmute_led.old_hook)
+ spec->micmute_led.old_hook(codec, kcontrol, ucontrol);
+
+ if (!ucontrol)
+ return;
+ if (!strcmp("Capture Switch", ucontrol->id.name) &&
+ !ucontrol->id.index) {
+ /* TODO: How do I verify if it's a mono or stereo here? */
+ spec->micmute_led.capture = (ucontrol->value.integer.value[0] ||
+ ucontrol->value.integer.value[1]);
+ call_micmute_led_update(codec);
+ }
+}
+
+static int micmute_led_mode_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static const char * const texts[] = {
+ "On", "Off", "Follow Capture", "Follow Mute",
+ };
+
+ return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
+}
+
+static int micmute_led_mode_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct hda_gen_spec *spec = codec->spec;
+
+ ucontrol->value.enumerated.item[0] = spec->micmute_led.led_mode;
+ return 0;
+}
+
+static int micmute_led_mode_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct hda_gen_spec *spec = codec->spec;
+ unsigned int mode;
+
+ mode = ucontrol->value.enumerated.item[0];
+ if (mode > MICMUTE_LED_FOLLOW_MUTE)
+ mode = MICMUTE_LED_FOLLOW_MUTE;
+ if (mode == spec->micmute_led.led_mode)
+ return 0;
+ spec->micmute_led.led_mode = mode;
+ call_micmute_led_update(codec);
+ return 1;
+}
+
+static const struct snd_kcontrol_new micmute_led_mode_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Mic Mute-LED Mode",
+ .info = micmute_led_mode_info,
+ .get = micmute_led_mode_get,
+ .put = micmute_led_mode_put,
+};
+
+/**
+ * snd_hda_gen_add_micmute_led - helper for setting up mic mute LED hook
+ * @codec: the HDA codec
+ * @hook: the callback for updating LED
+ *
+ * Called from the codec drivers for offering the mic mute LED controls.
+ * Only valid for a single ADC (or a single input). When established, it
+ * sets up cap_sync_hook and triggers the callback at each time when the
+ * capture mixer switch changes. The callback is supposed to update the LED
+ * accordingly.
+ *
+ * Returns 1 if the hook is established, 0 if skipped (no valid config), or
+ * a negative error code.
+ */
+int snd_hda_gen_add_micmute_led(struct hda_codec *codec,
+ void (*hook)(struct hda_codec *))
+{
+ struct hda_gen_spec *spec = codec->spec;
+
+ if (spec->num_adc_nids > 1 && !spec->dyn_adc_switch) {
+ codec_dbg(codec,
+ "Skipping micmute LED control due to several ADCs");
+ return 0;
+ }
+
+ spec->micmute_led.led_mode = MICMUTE_LED_FOLLOW_MUTE;
+ spec->micmute_led.capture = 0;
+ spec->micmute_led.led_value = 0;
+ spec->micmute_led.old_hook = spec->cap_sync_hook;
+ spec->micmute_led.update = hook;
+ spec->cap_sync_hook = update_micmute_led;
+ if (!snd_hda_gen_add_kctl(spec, NULL, &micmute_led_mode_ctl))
+ return -ENOMEM;
+ return 1;
+}
+EXPORT_SYMBOL_GPL(snd_hda_gen_add_micmute_led);
+
+/*
* parse digital I/Os and set up NIDs in BIOS auto-parse mode
*/
static void parse_digital(struct hda_codec *codec)