[ALSA] hda - Fix mic input on HP2133

The mic pins are wrongly assigned on AD1884A mobile model.
The mic handling is fixed for the automatic mic selection, too.

Signed-off-by: Takashi Iwai <[e-mail]>

sound/pci/hda/patch_analog.c

···
 	{ } /* end */
 };
 
-static struct hda_input_mux ad1884a_mobile_capture_source = {
-	.num_items = 2,
-	.items = {
-		{ "Mic", 0x1 }, /* port-C */
-		{ "Mix", 0x3 },
-	},
-};
-
 static struct snd_kcontrol_new ad1884a_mobile_mixers[] = {
 	HDA_CODEC_VOLUME("Master Playback Volume", 0x21, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("PCM Playback Volume", 0x20, 0x5, HDA_INPUT),
 	HDA_CODEC_MUTE("PCM Playback Switch", 0x20, 0x5, HDA_INPUT),
-	HDA_CODEC_VOLUME("Mic Playback Volume", 0x20, 0x01, HDA_INPUT),
-	HDA_CODEC_MUTE("Mic Playback Switch", 0x20, 0x01, HDA_INPUT),
 	HDA_CODEC_VOLUME("Beep Playback Volume", 0x20, 0x03, HDA_INPUT),
 	HDA_CODEC_MUTE("Beep Playback Switch", 0x20, 0x03, HDA_INPUT),
-	HDA_CODEC_VOLUME("Mic Boost", 0x15, 0x0, HDA_INPUT),
+	HDA_CODEC_VOLUME("Mic Capture Volume", 0x14, 0x0, HDA_INPUT),
+	HDA_CODEC_VOLUME("Internal Mic Capture Volume", 0x15, 0x0, HDA_INPUT),
 	HDA_CODEC_VOLUME("Capture Volume", 0x0c, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Capture Switch", 0x0c, 0x0, HDA_OUTPUT),
-	{
-		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
-		.name = "Capture Source",
-		.info = ad198x_mux_enum_info,
-		.get = ad198x_mux_enum_get,
-		.put = ad198x_mux_enum_put,
-	},
 	{ } /* end */
 };
 
···
 			    present ? 0x00 : 0x02);
 }
 
+/* switch to external mic if plugged */
+static void ad1884a_hp_automic(struct hda_codec *codec)
+{
+	unsigned int present;
+
+	present = snd_hda_codec_read(codec, 0x14, 0,
+				     AC_VERB_GET_PIN_SENSE, 0) & 0x80000000;
+	snd_hda_codec_write(codec, 0x0c, 0, AC_VERB_SET_CONNECT_SEL,
+			    present ? 0 : 1);
+}
+
 #define AD1884A_HP_EVENT		0x37
+#define AD1884A_MIC_EVENT		0x36
 
 /* unsolicited event for HP jack sensing */
 static void ad1884a_hp_unsol_event(struct hda_codec *codec, unsigned int res)
 {
-	if ((res >> 26) != AD1884A_HP_EVENT)
-		return;
-	ad1884a_hp_automute(codec);
+	switch (res >> 26) {
+	case AD1884A_HP_EVENT:
+		ad1884a_hp_automute(codec);
+		break;
+	case AD1884A_MIC_EVENT:
+		ad1884a_hp_automic(codec);
+		break;
+	}
 }
 
 /* initialize jack-sensing, too */
···
 {
 	ad198x_init(codec);
 	ad1884a_hp_automute(codec);
+	ad1884a_hp_automic(codec);
 	return 0;
 }
 
···
 	/* Port-F pin */
 	{0x16, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP},
 	{0x16, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	/* Port-C pin - internal mic-in */
+	{0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},
+	{0x14, AC_VERB_SET_AMP_GAIN_MUTE, 0x7002}, /* raise mic as default */
+	{0x15, AC_VERB_SET_AMP_GAIN_MUTE, 0x7002}, /* raise mic as default */
 	/* analog mix */
 	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(4)},
 	/* unsolicited event for pin-sense */
 	{0x11, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1884A_HP_EVENT},
+	{0x14, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1884A_MIC_EVENT},
 	{ } /* end */
 };
 
···
 		spec->mixers[0] = ad1884a_mobile_mixers;
 		spec->init_verbs[spec->num_init_verbs++] = ad1884a_laptop_verbs;
 		spec->multiout.dig_out_nid = 0;
-		spec->input_mux = &ad1884a_mobile_capture_source;
 		codec->patch_ops.unsol_event = ad1884a_hp_unsol_event;
 		codec->patch_ops.init = ad1884a_hp_init;
 		break;