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Commit d681518a authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
Browse files

[ALSA] Add support of LG LW20 laptop 



Add support of LG LW20 laptop with ALC880 codec (ALSA bug#1572).

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent a0f06780

Documentation/sound/alsa/ALSA-Configuration.txt

+1 −0
Original line number Diff line number Diff line
@@ -701,6 +701,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. 
	  uniwill	3-jack

	  F1734		2-jack

	  lg		LG laptop (m1 express dual)

	  lg-lw		LG LW20 laptop

	  test		for testing/debugging purpose, almost all controls can be

			adjusted.  Appearing only when compiled with

			$CONFIG_SND_DEBUG=y

sound/pci/hda/patch_realtek.c

+93 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ enum { 
	ALC880_CLEVO,

	ALC880_TCL_S700,

	ALC880_LG,

	ALC880_LG_LW,

#ifdef CONFIG_SND_DEBUG

	ALC880_TEST,

#endif
@@ -1426,6 +1427,82 @@ static void alc880_lg_unsol_event(struct hda_codec *codec, unsigned int res) 
		alc880_lg_automute(codec);

}



/*

 * LG LW20

 *

 * Pin assignment:

 *   Speaker-out: 0x14

 *   Mic-In: 0x18

 *   Built-in Mic-In: 0x19 (?)

 *   HP-Out: 0x1b

 *   SPDIF-Out: 0x1e

 */



/* seems analog CD is not working */

static struct hda_input_mux alc880_lg_lw_capture_source = {

	.num_items = 2,

	.items = {

		{ "Mic", 0x0 },

		{ "Internal Mic", 0x1 },

	},

};



static struct snd_kcontrol_new alc880_lg_lw_mixer[] = {

	HDA_CODEC_VOLUME("Master Playback Volume", 0x0c, 0x0, HDA_OUTPUT),

	HDA_BIND_MUTE("Master Playback Switch", 0x0c, 2, HDA_INPUT),

	HDA_CODEC_VOLUME("Mic Playback Volume", 0x0b, 0x0, HDA_INPUT),

	HDA_CODEC_MUTE("Mic Playback Switch", 0x0b, 0x0, HDA_INPUT),

	HDA_CODEC_VOLUME("Internal Mic Playback Volume", 0x0b, 0x01, HDA_INPUT),

	HDA_CODEC_MUTE("Internal Mic Playback Switch", 0x0b, 0x01, HDA_INPUT),

	{ } /* end */

};



static struct hda_verb alc880_lg_lw_init_verbs[] = {

	/* set capture source to mic-in */

	{0x07, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},

	{0x08, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},

	{0x09, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},

	{0x0b, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(7)},

	/* speaker-out */

	{0x14, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP},

	{0x14, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},

	/* HP-out */

	{0x13, AC_VERB_SET_CONNECT_SEL, 0x00},

	{0x1b, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP},

	{0x1b, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},

	/* mic-in to input */

	{0x18, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},

	{0x18, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},

	/* built-in mic */

	{0x19, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},

	{0x19, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},

	/* jack sense */

	{0x1b, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | 0x1},

	{ }

};



/* toggle speaker-output according to the hp-jack state */

static void alc880_lg_lw_automute(struct hda_codec *codec)

{

	unsigned int present;



	present = snd_hda_codec_read(codec, 0x1b, 0,

				     AC_VERB_GET_PIN_SENSE, 0) & 0x80000000;

	snd_hda_codec_amp_update(codec, 0x14, 0, HDA_OUTPUT, 0,

				 0x80, present ? 0x80 : 0);

	snd_hda_codec_amp_update(codec, 0x14, 1, HDA_OUTPUT, 0,

				 0x80, present ? 0x80 : 0);

}



static void alc880_lg_lw_unsol_event(struct hda_codec *codec, unsigned int res)

{

	/* Looks like the unsol event is incompatible with the standard

	 * definition.  4bit tag is placed at 28 bit!

	 */

	if ((res >> 28) == 0x01)

		alc880_lg_lw_automute(codec);

}



/*

 * Common callbacks

 */
@@ -2078,6 +2155,9 @@ static struct hda_board_config alc880_cfg_tbl[] = { 
	{ .modelname = "lg", .config = ALC880_LG },

	{ .pci_subvendor = 0x1854, .pci_subdevice = 0x003b, .config = ALC880_LG },



	{ .modelname = "lg-lw", .config = ALC880_LG_LW },

	{ .pci_subvendor = 0x1854, .pci_subdevice = 0x0018, .config = ALC880_LG_LW },



#ifdef CONFIG_SND_DEBUG

	{ .modelname = "test", .config = ALC880_TEST },

#endif
@@ -2268,6 +2348,19 @@ static struct alc_config_preset alc880_presets[] = { 
		.unsol_event = alc880_lg_unsol_event,

		.init_hook = alc880_lg_automute,

	},

	[ALC880_LG_LW] = {

		.mixers = { alc880_lg_lw_mixer },

		.init_verbs = { alc880_volume_init_verbs,

				alc880_lg_lw_init_verbs },

		.num_dacs = 1, 

		.dac_nids = alc880_dac_nids,

		.dig_out_nid = ALC880_DIGOUT_NID,

		.num_channel_mode = ARRAY_SIZE(alc880_2_jack_modes),

		.channel_mode = alc880_2_jack_modes,

		.input_mux = &alc880_lg_lw_capture_source,

		.unsol_event = alc880_lg_lw_unsol_event,

		.init_hook = alc880_lg_lw_automute,

	},

#ifdef CONFIG_SND_DEBUG

	[ALC880_TEST] = {

		.mixers = { alc880_test_mixer },