ALSA: hda: dynamically create capture mux controls

Dynamically create capture mux volume controls when a output amp is detected.
Signed-off-by: NMatthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

sound/pci/hda/patch_sigmatel.c

@@ -795,7 +795,6 @@ static struct snd_kcontrol_new stac9200_mixer[] = {
 	STAC_INPUT_SOURCE(1),
 	HDA_CODEC_VOLUME("Capture Volume", 0x0a, 0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Capture Switch", 0x0a, 0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME("Capture Mux Volume", 0x0c, 0, HDA_OUTPUT),
 	{ } /* end */
 };
 
@@ -909,12 +908,9 @@ static struct snd_kcontrol_new stac92hd71bxx_analog_mixer[] = {
 
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x0, 0x1c, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x0, 0x1c, 0x0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME_IDX("Capture Mux Volume", 0x0, 0x1a, 0x0, HDA_OUTPUT),
 
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x1, 0x1d, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x1, 0x1d, 0x0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME_IDX("Capture Mux Volume", 0x1, 0x1b, 0x0, HDA_OUTPUT),
-
 	/* analog pc-beep replaced with digital beep support */
 	/*
 	HDA_CODEC_VOLUME("PC Beep Volume", 0x17, 0x2, HDA_INPUT),
@@ -932,11 +928,9 @@ static struct snd_kcontrol_new stac92hd71bxx_mixer[] = {
 
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x0, 0x1c, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x0, 0x1c, 0x0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME_IDX("Capture Mux Volume", 0x0, 0x1a, 0x0, HDA_OUTPUT),
 
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x1, 0x1d, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x1, 0x1d, 0x0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME_IDX("Capture Mux Volume", 0x1, 0x1b, 0x0, HDA_OUTPUT),
 	{ } /* end */
 };
 
@@ -944,7 +938,6 @@ static struct snd_kcontrol_new stac925x_mixer[] = {
 	STAC_INPUT_SOURCE(1),
 	HDA_CODEC_VOLUME("Capture Volume", 0x09, 0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Capture Switch", 0x14, 0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME("Capture Mux Volume", 0x0f, 0, HDA_OUTPUT),
 	{ } /* end */
 };
 
@@ -954,12 +947,9 @@ static struct snd_kcontrol_new stac9205_mixer[] = {
 
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x0, 0x1b, 0x0, HDA_INPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x0, 0x1d, 0x0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME_IDX("Mux Capture Volume", 0x0, 0x19, 0x0, HDA_OUTPUT),
 
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x1, 0x1c, 0x0, HDA_INPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x1, 0x1e, 0x0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME_IDX("Mux Capture Volume", 0x1, 0x1A, 0x0, HDA_OUTPUT),
-
 	{ } /* end */
 };
 
@@ -968,11 +958,9 @@ static struct snd_kcontrol_new stac922x_mixer[] = {
 	STAC_INPUT_SOURCE(2),
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x0, 0x17, 0x0, HDA_INPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x0, 0x17, 0x0, HDA_INPUT),
-	HDA_CODEC_VOLUME_IDX("Mux Capture Volume", 0x0, 0x12, 0x0, HDA_OUTPUT),
 
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x1, 0x18, 0x0, HDA_INPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x1, 0x18, 0x0, HDA_INPUT),
-	HDA_CODEC_VOLUME_IDX("Mux Capture Volume", 0x1, 0x13, 0x0, HDA_OUTPUT),
 	{ } /* end */
 };
 
@@ -983,15 +971,12 @@ static struct snd_kcontrol_new stac927x_mixer[] = {
 
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x0, 0x18, 0x0, HDA_INPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x0, 0x1b, 0x0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME_IDX("Mux Capture Volume", 0x0, 0x15, 0x0, HDA_OUTPUT),
 
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x1, 0x19, 0x0, HDA_INPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x1, 0x1c, 0x0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME_IDX("Mux Capture Volume", 0x1, 0x16, 0x0, HDA_OUTPUT),
 
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 0x2, 0x1A, 0x0, HDA_INPUT),
 	HDA_CODEC_MUTE_IDX("Capture Switch", 0x2, 0x1d, 0x0, HDA_OUTPUT),
-	HDA_CODEC_VOLUME_IDX("Mux Capture Volume", 0x2, 0x17, 0x0, HDA_OUTPUT),
 	{ } /* end */
 };
 
@@ -2352,7 +2337,8 @@ static struct snd_kcontrol_new stac92xx_control_templates[] = {
 };
 
 /* add dynamic controls */
-static int stac92xx_add_control(struct sigmatel_spec *spec, int type, const char *name, unsigned long val)
+static int stac92xx_add_control_idx(struct sigmatel_spec *spec, int type,
+		int idx, const char *name, unsigned long val)
 {
 	struct snd_kcontrol_new *knew;
 
@@ -2372,6 +2358,7 @@ static int stac92xx_add_control(struct sigmatel_spec *spec, int type, const char
 
 	knew = &spec->kctl_alloc[spec->num_kctl_used];
 	*knew = stac92xx_control_templates[type];
+	knew->index = idx;
 	knew->name = kstrdup(name, GFP_KERNEL);
 	if (! knew->name)
 		return -ENOMEM;
@@ -2380,6 +2367,14 @@ static int stac92xx_add_control(struct sigmatel_spec *spec, int type, const char
 	return 0;
 }
 
+
+/* add dynamic controls */
+static int stac92xx_add_control(struct sigmatel_spec *spec, int type,
+		const char *name, unsigned long val)
+{
+	return stac92xx_add_control_idx(spec, type, 0, name, val);
+}
+
 /* flag inputs as additional dynamic lineouts */
 static int stac92xx_add_dyn_out_pins(struct hda_codec *codec, struct auto_pin_cfg *cfg)
 {
@@ -2781,6 +2776,26 @@ static int stac92xx_auto_create_beep_ctls(struct hda_codec *codec,
 	return 0;
 }
 
+static int stac92xx_auto_create_mux_input_ctls(struct hda_codec *codec)
+{
+	struct sigmatel_spec *spec = codec->spec;
+	int wcaps, nid, i, err = 0;
+
+	for (i = 0; i < spec->num_muxes; i++) {
+		nid = spec->mux_nids[i];
+		wcaps = get_wcaps(codec, nid);
+
+		if (wcaps & AC_WCAP_OUT_AMP) {
+			err = stac92xx_add_control_idx(spec,
+				STAC_CTL_WIDGET_VOL, i, "Mux Capture Volume",
+				HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT));
+			if (err < 0)
+				return err;
+		}
+	}
+	return 0;
+};
+
 /* labels for dmic mux inputs */
 static const char *stac92xx_dmic_labels[5] = {
 	"Analog Inputs", "Digital Mic 1", "Digital Mic 2",
@@ -3079,6 +3094,11 @@ static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out
 		if ((err = stac92xx_auto_create_dmic_input_ctls(codec,
 						&spec->autocfg)) < 0)
 			return err;
+	if (spec->num_muxes > 0) {
+		err = stac92xx_auto_create_mux_input_ctls(codec);
+		if (err < 0)
+			return err;
+	}
 
 	spec->multiout.max_channels = spec->multiout.num_dacs * 2;
 	if (spec->multiout.max_channels > 2)