[ALSA] hda-codec - Add support of ALC268 codec

Added the support of new ALC268 codec chip.

Signed-off-by: Kailang Yang <kailang@realtek.com.tw>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

2 files changed, 521 insertions, 0 deletions

diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index ca3e6d5e6a5..7659e5071c4 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -822,6 +822,10 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 	  basic		fixed pin assignment w/o SPDIF
 	  auto		auto-config reading BIOS (default)
 
+	ALC268
+	  3stack	3-stack model
+	  auto		auto-config reading BIOS (default)
+
 	ALC882/885
 	  3stack-dig	3-jack with SPDIF I/O
 	  6stack-dig	6-jack digital with SPDIF I/O
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index c92c97c6cbe..49a0fa8ec67 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -98,6 +98,13 @@ enum {
 	ALC262_MODEL_LAST /* last tag */
 };
 
+/* ALC268 models */
+enum {
+	ALC268_3ST,
+	ALC268_AUTO,
+	ALC268_MODEL_LAST /* last tag */
+};
+
 /* ALC861 models */
 enum {
 	ALC861_3ST,
@@ -7804,6 +7811,515 @@ static int patch_alc262(struct hda_codec *codec)
 }
 
 /*
+ *  ALC268 channel source setting (2 channel)
+ */
+#define ALC268_DIGOUT_NID	ALC880_DIGOUT_NID
+#define alc268_modes		alc260_modes
+	
+static hda_nid_t alc268_dac_nids[2] = {
+	/* front, hp */
+	0x02, 0x03
+};
+
+static hda_nid_t alc268_adc_nids[2] = {
+	/* ADC0-1 */
+	0x08, 0x07
+};
+
+static hda_nid_t alc268_adc_nids_alt[1] = {
+	/* ADC0 */
+	0x08
+};
+
+static struct snd_kcontrol_new alc268_base_mixer[] = {
+	/* output mixer control */
+	HDA_CODEC_VOLUME("Front Playback Volume", 0x2, 0x0, HDA_OUTPUT),
+	HDA_CODEC_MUTE("Front Playback Switch", 0x14, 0x0, HDA_OUTPUT),
+	HDA_CODEC_VOLUME("Headphone Playback Volume", 0x3, 0x0, HDA_OUTPUT),
+	HDA_CODEC_MUTE("Headphone Playback Switch", 0x15, 0x0, HDA_OUTPUT),
+	{ }
+};
+
+/*
+ * generic initialization of ADC, input mixers and output mixers
+ */
+static struct hda_verb alc268_base_init_verbs[] = {
+	/* Unmute DAC0-1 and set vol = 0 */
+	{0x02, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
+	{0x02, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+	{0x02, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
+	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
+	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
+
+	/*
+	 * Set up output mixers (0x0c - 0x0e)
+	 */
+	/* set vol=0 to output mixers */
+	{0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+	{0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
+	{0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
+        {0x0e, AC_VERB_SET_CONNECT_SEL, 0x00},
+
+	{0x0f, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+	{0x10, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+
+	{0x14, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x40},
+	{0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, 0xc0},
+	{0x16, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x40},
+	{0x18, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x24},
+	{0x19, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x24},
+	{0x1a, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x20},
+	{0x1c, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x20},
+	{0x1d, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x20},
+
+	{0x14, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	{0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	{0x16, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	{0x18, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	{0x19, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	{0x1a, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	{0x1c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	{0x1d, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x00 << 8))},
+
+	/* FIXME: use matrix-type input source selection */
+	/* Mixer elements: 0x18, 19, 1a, 1c, 14, 15, 0b */
+	/* Input mixer1: unmute Mic, F-Mic, Line, CD inputs */
+	/* Input mixer2 */
+	{0x23, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x00 << 8))},
+	{0x23, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x01 << 8))},
+	{0x23, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x02 << 8))},
+	{0x23, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x03 << 8))},
+
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x00 << 8))},
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x01 << 8))},
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x02 << 8))},
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x03 << 8))},
+	{ }
+};
+
+/*
+ * generic initialization of ADC, input mixers and output mixers
+ */
+static struct hda_verb alc268_volume_init_verbs[] = {
+	/* set output DAC */
+	{0x02, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+	{0x02, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
+	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
+
+	{0x18, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x24},
+	{0x19, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x24},
+	{0x1a, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x20},
+	{0x1c, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x20},
+	{0x1d, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x20},
+
+	{0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
+	{0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+	{0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
+	{0x0f, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+	{0x10, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+
+	{0x18, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	{0x19, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	{0x1a, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	{0x1c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+
+	/* set PCBEEP vol = 0 */
+	{0x1d, AC_VERB_SET_AMP_GAIN_MUTE, (0xb000 | (0x00 << 8))},
+
+	{ }
+};
+
+#define alc268_mux_enum_info alc_mux_enum_info
+#define alc268_mux_enum_get alc_mux_enum_get
+
+static int alc268_mux_enum_put(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct alc_spec *spec = codec->spec;
+	const struct hda_input_mux *imux = spec->input_mux;
+	unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+	static hda_nid_t capture_mixers[3] = { 0x23, 0x24 };
+	hda_nid_t nid = capture_mixers[adc_idx];
+	unsigned int *cur_val = &spec->cur_mux[adc_idx];
+	unsigned int i, idx;
+
+	idx = ucontrol->value.enumerated.item[0];
+	if (idx >= imux->num_items)
+		idx = imux->num_items - 1;
+	if (*cur_val == idx && !codec->in_resume)
+		return 0;
+	for (i = 0; i < imux->num_items; i++) {
+		unsigned int v = (i == idx) ? 0x7000 : 0x7080;
+		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
+				    v | (imux->items[i].index << 8));
+                snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
+				    idx );
+	}
+	*cur_val = idx;
+	return 1;
+}
+
+static struct snd_kcontrol_new alc268_capture_alt_mixer[] = {
+	HDA_CODEC_VOLUME("Capture Volume", 0x23, 0x0, HDA_OUTPUT),
+	HDA_CODEC_MUTE("Capture Switch", 0x23, 0x0, HDA_OUTPUT),
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		/* The multiple "Capture Source" controls confuse alsamixer
+		 * So call somewhat different..
+		 * FIXME: the controls appear in the "playback" view!
+		 */
+		/* .name = "Capture Source", */
+		.name = "Input Source",
+		.count = 1,
+		.info = alc268_mux_enum_info,
+		.get = alc268_mux_enum_get,
+		.put = alc268_mux_enum_put,
+	},
+	{ } /* end */
+};
+
+static struct snd_kcontrol_new alc268_capture_mixer[] = {
+	HDA_CODEC_VOLUME("Capture Volume", 0x23, 0x0, HDA_OUTPUT),
+	HDA_CODEC_MUTE("Capture Switch", 0x23, 0x0, HDA_OUTPUT),
+	HDA_CODEC_VOLUME_IDX("Capture Volume", 1, 0x24, 0x0, HDA_OUTPUT),
+	HDA_CODEC_MUTE_IDX("Capture Switch", 1, 0x24, 0x0, HDA_OUTPUT),
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		/* The multiple "Capture Source" controls confuse alsamixer
+		 * So call somewhat different..
+		 * FIXME: the controls appear in the "playback" view!
+		 */
+		/* .name = "Capture Source", */
+		.name = "Input Source",
+		.count = 2,
+		.info = alc268_mux_enum_info,
+		.get = alc268_mux_enum_get,
+		.put = alc268_mux_enum_put,
+	},
+	{ } /* end */
+};
+
+static struct hda_input_mux alc268_capture_source = {
+	.num_items = 4,
+	.items = {
+		{ "Mic", 0x0 },
+		{ "Front Mic", 0x1 },
+		{ "Line", 0x2 },
+		{ "CD", 0x3 },
+	},
+};
+
+/* create input playback/capture controls for the given pin */
+static int alc268_new_analog_output(struct alc_spec *spec, hda_nid_t nid,
+				    const char *ctlname, int idx)
+{
+	char name[32];
+	int err;
+
+	sprintf(name, "%s Playback Volume", ctlname);
+	if (nid == 0x14) {
+		err = add_control(spec, ALC_CTL_WIDGET_VOL, name,
+				  HDA_COMPOSE_AMP_VAL(0x02, 3, idx,
+						      HDA_OUTPUT));
+		if (err < 0)
+			return err;
+	} else if (nid == 0x15) {
+		err = add_control(spec, ALC_CTL_WIDGET_VOL, name,
+				  HDA_COMPOSE_AMP_VAL(0x03, 3, idx,
+						      HDA_OUTPUT));
+		if (err < 0)
+			return err;
+	} else
+		return -1;
+	sprintf(name, "%s Playback Switch", ctlname);
+	err = add_control(spec, ALC_CTL_WIDGET_MUTE, name,
+			  HDA_COMPOSE_AMP_VAL(nid, 3, idx, HDA_OUTPUT));
+	if (err < 0)
+		return err;
+	return 0;
+}
+
+/* add playback controls from the parsed DAC table */
+static int alc268_auto_create_multi_out_ctls(struct alc_spec *spec,
+					     const struct auto_pin_cfg *cfg)
+{
+	hda_nid_t nid;
+	int err;
+
+	spec->multiout.num_dacs = 2;	/* only use one dac */
+	spec->multiout.dac_nids = spec->private_dac_nids;
+	spec->multiout.dac_nids[0] = 2;
+	spec->multiout.dac_nids[1] = 3;
+
+	nid = cfg->line_out_pins[0];
+	if (nid)
+		alc268_new_analog_output(spec, nid, "Front", 0);	
+
+	nid = cfg->speaker_pins[0];
+	if (nid == 0x1d) {
+		err = add_control(spec, ALC_CTL_WIDGET_VOL,
+				  "Speaker Playback Volume",
+				  HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_INPUT));
+		if (err < 0)
+			return err;
+	}
+	nid = cfg->hp_pins[0];
+	if (nid)
+		alc268_new_analog_output(spec, nid, "Headphone", 0);
+
+	nid = cfg->line_out_pins[1] | cfg->line_out_pins[2];
+	if (nid == 0x16) {
+		err = add_control(spec, ALC_CTL_WIDGET_MUTE,
+				  "Mono Playback Switch",
+				  HDA_COMPOSE_AMP_VAL(nid, 2, 0, HDA_INPUT));
+		if (err < 0)
+			return err;
+	}
+	return 0;	
+}
+
+/* create playback/capture controls for input pins */
+static int alc268_auto_create_analog_input_ctls(struct alc_spec *spec,
+						const struct auto_pin_cfg *cfg)
+{
+	struct hda_input_mux *imux = &spec->private_imux;
+	int i, idx1;
+
+	for (i = 0; i < AUTO_PIN_LAST; i++) {
+		switch(cfg->input_pins[i]) {
+		case 0x18:
+			idx1 = 0;	/* Mic 1 */
+			break;
+		case 0x19:
+			idx1 = 1;	/* Mic 2 */
+			break;
+		case 0x1a:
+			idx1 = 2;	/* Line In */
+			break;
+		case 0x1c:	
+			idx1 = 3;	/* CD */
+			break;
+		default:
+			continue;
+		}
+		imux->items[imux->num_items].label = auto_pin_cfg_labels[i];
+		imux->items[imux->num_items].index = idx1;
+		imux->num_items++;	
+	}
+	return 0;
+}
+
+static void alc268_auto_init_mono_speaker_out(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+	hda_nid_t speaker_nid = spec->autocfg.speaker_pins[0];
+	hda_nid_t hp_nid = spec->autocfg.hp_pins[0];
+	hda_nid_t line_nid = spec->autocfg.line_out_pins[0];
+	unsigned int	dac_vol1, dac_vol2;
+
+	if (speaker_nid) {
+		snd_hda_codec_write(codec, speaker_nid, 0,
+				    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
+		snd_hda_codec_write(codec, 0x0f, 0,
+				    AC_VERB_SET_AMP_GAIN_MUTE,
+				    AMP_IN_UNMUTE(1));
+		snd_hda_codec_write(codec, 0x10, 0,
+				    AC_VERB_SET_AMP_GAIN_MUTE,
+				    AMP_IN_UNMUTE(1));
+	} else {
+		snd_hda_codec_write(codec, 0x0f, 0,
+				    AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1));
+		snd_hda_codec_write(codec, 0x10, 0,
+				    AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1));
+	}
+
+	dac_vol1 = dac_vol2 = 0xb000 | 0x40;	/* set max volume  */
+	if (line_nid == 0x14)	
+		dac_vol2 = AMP_OUT_ZERO;
+	else if (line_nid == 0x15)
+		dac_vol1 = AMP_OUT_ZERO;
+	if (hp_nid == 0x14)	
+		dac_vol2 = AMP_OUT_ZERO;
+	else if (hp_nid == 0x15)
+		dac_vol1 = AMP_OUT_ZERO;
+	if (line_nid != 0x16 || hp_nid != 0x16 ||
+	    spec->autocfg.line_out_pins[1] != 0x16 ||
+	    spec->autocfg.line_out_pins[2] != 0x16)
+		dac_vol1 = dac_vol2 = AMP_OUT_ZERO;
+
+	snd_hda_codec_write(codec, 0x02, 0,
+			    AC_VERB_SET_AMP_GAIN_MUTE, dac_vol1);
+	snd_hda_codec_write(codec, 0x03, 0,
+			    AC_VERB_SET_AMP_GAIN_MUTE, dac_vol2);
+}
+
+/* pcm configuration: identiacal with ALC880 */
+#define alc268_pcm_analog_playback	alc880_pcm_analog_playback
+#define alc268_pcm_analog_capture	alc880_pcm_analog_capture
+#define alc268_pcm_digital_playback	alc880_pcm_digital_playback
+
+/*
+ * BIOS auto configuration
+ */
+static int alc268_parse_auto_config(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+	int err;
+	static hda_nid_t alc268_ignore[] = { 0 };
+
+	err = snd_hda_parse_pin_def_config(codec, &spec->autocfg,
+					   alc268_ignore);
+	if (err < 0)
+		return err;
+	if (!spec->autocfg.line_outs)
+		return 0; /* can't find valid BIOS pin config */
+
+	err = alc268_auto_create_multi_out_ctls(spec, &spec->autocfg);
+	if (err < 0)
+		return err;
+	err = alc268_auto_create_analog_input_ctls(spec, &spec->autocfg);
+	if (err < 0)
+		return err;
+
+	spec->multiout.max_channels = 2;
+
+	/* digital only support output */
+	if (spec->autocfg.dig_out_pin)
+		spec->multiout.dig_out_nid = ALC268_DIGOUT_NID;
+
+	if (spec->kctl_alloc)
+		spec->mixers[spec->num_mixers++] = spec->kctl_alloc;
+
+	spec->init_verbs[spec->num_init_verbs++] = alc268_volume_init_verbs;
+	spec->num_mux_defs = 1;
+	spec->input_mux = &spec->private_imux;
+
+	return 1;
+}
+
+#define alc268_auto_init_multi_out	alc882_auto_init_multi_out
+#define alc268_auto_init_hp_out		alc882_auto_init_hp_out
+#define alc268_auto_init_analog_input	alc882_auto_init_analog_input
+
+/* init callback for auto-configuration model -- overriding the default init */
+static void alc268_auto_init(struct hda_codec *codec)
+{
+	alc268_auto_init_multi_out(codec);
+	alc268_auto_init_hp_out(codec);
+	alc268_auto_init_mono_speaker_out(codec);
+	alc268_auto_init_analog_input(codec);
+}
+
+/*
+ * configuration and preset
+ */
+static const char *alc268_models[ALC268_MODEL_LAST] = {
+	[ALC268_3ST]		= "3stack",
+	[ALC268_AUTO]		= "auto",
+};
+
+static struct snd_pci_quirk alc268_cfg_tbl[] = {
+	SND_PCI_QUIRK(0x1043, 0x1205, "ASUS W7J", ALC268_3ST),
+	{}
+};
+
+static struct alc_config_preset alc268_presets[] = {
+	[ALC268_3ST] = {
+		.mixers = { alc268_base_mixer, alc268_capture_alt_mixer },
+		.init_verbs = { alc268_base_init_verbs },
+		.num_dacs = ARRAY_SIZE(alc268_dac_nids),
+		.dac_nids = alc268_dac_nids,
+                .num_adc_nids = ARRAY_SIZE(alc268_adc_nids_alt),
+                .adc_nids = alc268_adc_nids_alt,
+		.hp_nid = 0x03,
+		.dig_out_nid = ALC268_DIGOUT_NID,
+		.num_channel_mode = ARRAY_SIZE(alc268_modes),
+		.channel_mode = alc268_modes,
+		.input_mux = &alc268_capture_source,
+	},
+};
+
+static int patch_alc268(struct hda_codec *codec)
+{
+	struct alc_spec *spec;
+	int board_config;
+	int err;
+
+	spec = kcalloc(1, sizeof(*spec), GFP_KERNEL);
+	if (spec == NULL)
+		return -ENOMEM;
+
+	codec->spec = spec;
+
+	board_config = snd_hda_check_board_config(codec, ALC268_MODEL_LAST,
+						  alc268_models,
+						  alc268_cfg_tbl);
+
+	if (board_config < 0 || board_config >= ALC268_MODEL_LAST) {
+		printk(KERN_INFO "hda_codec: Unknown model for ALC268, "
+		       "trying auto-probe from BIOS...\n");
+		board_config = ALC268_AUTO;
+	}
+
+	if (board_config == ALC268_AUTO) {
+		/* automatic parse from the BIOS config */
+		err = alc268_parse_auto_config(codec);
+		if (err < 0) {
+			alc_free(codec);
+			return err;
+		} else if (!err) {
+			printk(KERN_INFO
+			       "hda_codec: Cannot set up configuration "
+			       "from BIOS.  Using base mode...\n");
+			board_config = ALC268_3ST;
+		}
+	}
+
+	if (board_config != ALC268_AUTO)
+		setup_preset(spec, &alc268_presets[board_config]);
+
+	spec->stream_name_analog = "ALC268 Analog";
+	spec->stream_analog_playback = &alc268_pcm_analog_playback;
+	spec->stream_analog_capture = &alc268_pcm_analog_capture;
+
+	spec->stream_name_digital = "ALC268 Digital";
+	spec->stream_digital_playback = &alc268_pcm_digital_playback;
+
+	if (board_config == ALC268_AUTO) {
+		if (!spec->adc_nids && spec->input_mux) {
+			/* check whether NID 0x07 is valid */
+			unsigned int wcap = get_wcaps(codec, 0x07);
+
+			/* get type */
+			wcap = (wcap & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
+			if (wcap != AC_WID_AUD_IN) {
+				spec->adc_nids = alc268_adc_nids_alt;
+				spec->num_adc_nids =
+					ARRAY_SIZE(alc268_adc_nids_alt);
+				spec->mixers[spec->num_mixers] =
+					alc268_capture_alt_mixer;
+				spec->num_mixers++;
+			} else {
+				spec->adc_nids = alc268_adc_nids;
+				spec->num_adc_nids =
+					ARRAY_SIZE(alc268_adc_nids);
+				spec->mixers[spec->num_mixers] =
+					alc268_capture_mixer;
+				spec->num_mixers++;
+			}
+		}
+	}
+	codec->patch_ops = alc_patch_ops;
+	if (board_config == ALC268_AUTO)
+		spec->init_hook = alc268_auto_init;
+		
+	return 0;
+}
+
+/*
  *  ALC861 channel source setting (2/6 channel selection for 3-stack)
  */
 
@@ -10728,6 +11244,7 @@ static int patch_alc662(struct hda_codec *codec)
 struct hda_codec_preset snd_hda_preset_realtek[] = {
 	{ .id = 0x10ec0260, .name = "ALC260", .patch = patch_alc260 },
 	{ .id = 0x10ec0262, .name = "ALC262", .patch = patch_alc262 },
+	{ .id = 0x10ec0268, .name = "ALC268", .patch = patch_alc268 },
 	{ .id = 0x10ec0861, .rev = 0x100340, .name = "ALC660",
 	  .patch = patch_alc861 },
 	{ .id = 0x10ec0660, .name = "ALC660-VD", .patch = patch_alc861vd },