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Commit 5d5d5f43 authored by Takashi Iwai's avatar Takashi Iwai
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[ALSA] hda-codec - Implement auto-mic jack sensing on Samsung laptops 



Implemented the auto-mic jack sensing for Samsung laptops with AD1986A
codec chip (model=laptop-eapd).

The hardware uses pin 0x1d and 0x1f for the internal and external
mics, respectively.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent e1406348

sound/pci/hda/patch_analog.c

+49 −4
Original line number Diff line number Diff line
@@ -612,13 +612,19 @@ static struct hda_input_mux ad1986a_laptop_eapd_capture_source = { 
	},

};



static struct hda_input_mux ad1986a_automic_capture_source = {

	.num_items = 2,

	.items = {

		{ "Mic", 0x0 },

		{ "Mix", 0x5 },

	},

};



static struct snd_kcontrol_new ad1986a_laptop_eapd_mixers[] = {

	HDA_BIND_VOL("Master Playback Volume", &ad1986a_laptop_master_vol),

	HDA_BIND_SW("Master Playback Switch", &ad1986a_laptop_master_sw),

	HDA_CODEC_VOLUME("PCM Playback Volume", 0x03, 0x0, HDA_OUTPUT),

	HDA_CODEC_MUTE("PCM Playback Switch", 0x03, 0x0, HDA_OUTPUT),

	HDA_CODEC_VOLUME("Internal Mic Playback Volume", 0x17, 0x0, HDA_OUTPUT),

	HDA_CODEC_MUTE("Internal Mic Playback Switch", 0x17, 0x0, HDA_OUTPUT),

	HDA_CODEC_VOLUME("Mic Playback Volume", 0x13, 0x0, HDA_OUTPUT),

	HDA_CODEC_MUTE("Mic Playback Switch", 0x13, 0x0, HDA_OUTPUT),

	HDA_CODEC_VOLUME("Mic Boost", 0x0f, 0x0, HDA_OUTPUT),
@@ -642,6 +648,33 @@ static struct snd_kcontrol_new ad1986a_laptop_eapd_mixers[] = { 
	{ } /* end */

};



/* re-connect the mic boost input according to the jack sensing */

static void ad1986a_automic(struct hda_codec *codec)

{

	unsigned int present;

	present = snd_hda_codec_read(codec, 0x1f, 0, AC_VERB_GET_PIN_SENSE, 0);

	/* 0 = 0x1f, 2 = 0x1d, 4 = mixed */

	snd_hda_codec_write(codec, 0x0f, 0, AC_VERB_SET_CONNECT_SEL,

			    (present & AC_PINSENSE_PRESENCE) ? 0 : 2);

}



#define AD1986A_MIC_EVENT		0x36



static void ad1986a_automic_unsol_event(struct hda_codec *codec,

					    unsigned int res)

{

	if ((res >> 26) != AD1986A_MIC_EVENT)

		return;

	ad1986a_automic(codec);

}



static int ad1986a_automic_init(struct hda_codec *codec)

{

	ad198x_init(codec);

	ad1986a_automic(codec);

	return 0;

}



/* laptop-automute - 2ch only */



static void ad1986a_update_hp(struct hda_codec *codec)
@@ -845,6 +878,15 @@ static struct hda_verb ad1986a_eapd_init_verbs[] = { 
	{}

};



static struct hda_verb ad1986a_automic_verbs[] = {

	{0x1d, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},

	{0x1f, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},

	/*{0x20, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},*/

	{0x0f, AC_VERB_SET_CONNECT_SEL, 0x0},

	{0x1f, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1986A_MIC_EVENT},

	{}

};



/* Ultra initialization */

static struct hda_verb ad1986a_ultra_init[] = {

	/* eapd initialization */
@@ -987,14 +1029,17 @@ static int patch_ad1986a(struct hda_codec *codec) 
		break;

	case AD1986A_LAPTOP_EAPD:

		spec->mixers[0] = ad1986a_laptop_eapd_mixers;

		spec->num_init_verbs = 2;

		spec->num_init_verbs = 3;

		spec->init_verbs[1] = ad1986a_eapd_init_verbs;

		spec->init_verbs[2] = ad1986a_automic_verbs;

		spec->multiout.max_channels = 2;

		spec->multiout.num_dacs = 1;

		spec->multiout.dac_nids = ad1986a_laptop_dac_nids;

		if (!is_jack_available(codec, 0x25))

			spec->multiout.dig_out_nid = 0;

		spec->input_mux = &ad1986a_laptop_eapd_capture_source;

		spec->input_mux = &ad1986a_automic_capture_source;

		codec->patch_ops.unsol_event = ad1986a_automic_unsol_event;

		codec->patch_ops.init = ad1986a_automic_init;

		break;

	case AD1986A_LAPTOP_AUTOMUTE:

		spec->mixers[0] = ad1986a_laptop_automute_mixers;