[ALSA] hda-codec - Add laptop-automute model for AD1986A

Added a new model laptop-automute for AD1986A, which has the HP jack
detection and auto-muting of the speaker.  Currently, it's used for
Lenovo N100.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

Documentation/sound/alsa/ALSA-Configuration.txt

@@ -931,6 +931,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 	  3stack	3-stack, shared surrounds
 	  laptop	2-channel only (FSC V2060, Samsung M50)
 	  laptop-eapd	2-channel with EAPD (Samsung R65, ASUS A6J)
+	  laptop-automute 2-channel with EAPD and HP-automute (Lenovo N100)
 	  ultra		2-channel with EAPD (Samsung Ultra tablet PC)
 
 	AD1988

sound/pci/hda/patch_analog.c

@@ -74,6 +74,8 @@ struct ad198x_spec {
 	struct hda_input_mux private_imux;
 	hda_nid_t private_dac_nids[4];
 
+	unsigned int jack_present :1;
+
 #ifdef CONFIG_SND_HDA_POWER_SAVE
 	struct hda_loopback_check loopback;
 #endif
@@ -588,6 +590,106 @@ static struct snd_kcontrol_new ad1986a_laptop_eapd_mixers[] = {
 	{ } /* end */
 };
 
+/* laptop-automute - 2ch only */
+
+static void ad1986a_update_hp(struct hda_codec *codec)
+{
+	struct ad198x_spec *spec = codec->spec;
+	unsigned int mute;
+
+	if (spec->jack_present)
+		mute = HDA_AMP_MUTE; /* mute internal speaker */
+	else
+		/* unmute internal speaker if necessary */
+		mute = snd_hda_codec_amp_read(codec, 0x1a, 0, HDA_OUTPUT, 0);
+	snd_hda_codec_amp_stereo(codec, 0x1b, HDA_OUTPUT, 0,
+				 HDA_AMP_MUTE, mute);
+}
+
+static void ad1986a_hp_automute(struct hda_codec *codec)
+{
+	struct ad198x_spec *spec = codec->spec;
+	unsigned int present;
+
+	present = snd_hda_codec_read(codec, 0x1a, 0, AC_VERB_GET_PIN_SENSE, 0);
+	spec->jack_present = (present & 0x80000000) != 0;
+	ad1986a_update_hp(codec);
+}
+
+#define AD1986A_HP_EVENT		0x37
+
+static void ad1986a_hp_unsol_event(struct hda_codec *codec, unsigned int res)
+{
+	if ((res >> 26) != AD1986A_HP_EVENT)
+		return;
+	ad1986a_hp_automute(codec);
+}
+
+static int ad1986a_hp_init(struct hda_codec *codec)
+{
+	ad198x_init(codec);
+	ad1986a_hp_automute(codec);
+	return 0;
+}
+
+/* bind hp and internal speaker mute (with plug check) */
+static int ad1986a_hp_master_sw_put(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_value *ucontrol)
+{
+	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+	long *valp = ucontrol->value.integer.value;
+	int change;
+
+	change = snd_hda_codec_amp_update(codec, 0x1a, 0, HDA_OUTPUT, 0,
+					  HDA_AMP_MUTE,
+					  valp[0] ? 0 : HDA_AMP_MUTE);
+	change |= snd_hda_codec_amp_update(codec, 0x1a, 1, HDA_OUTPUT, 0,
+					   HDA_AMP_MUTE,
+					   valp[1] ? 0 : HDA_AMP_MUTE);
+	if (change)
+		ad1986a_update_hp(codec);
+	return change;
+}
+
+static struct snd_kcontrol_new ad1986a_laptop_automute_mixers[] = {
+	HDA_BIND_VOL("Master Playback Volume", &ad1986a_laptop_master_vol),
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Master Playback Switch",
+		.info = snd_hda_mixer_amp_switch_info,
+		.get = snd_hda_mixer_amp_switch_get,
+		.put = ad1986a_hp_master_sw_put,
+		.private_value = HDA_COMPOSE_AMP_VAL(0x1a, 3, 0, HDA_OUTPUT),
+	},
+	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),
+	HDA_CODEC_VOLUME("Beep Playback Volume", 0x18, 0x0, HDA_OUTPUT),
+	HDA_CODEC_MUTE("Beep Playback Switch", 0x18, 0x0, HDA_OUTPUT),
+	HDA_CODEC_VOLUME("Capture Volume", 0x12, 0x0, HDA_OUTPUT),
+	HDA_CODEC_MUTE("Capture Switch", 0x12, 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,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "External Amplifier",
+		.info = ad198x_eapd_info,
+		.get = ad198x_eapd_get,
+		.put = ad198x_eapd_put,
+		.private_value = 0x1b | (1 << 8), /* port-D, inversed */
+	},
+	{ } /* end */
+};
+
 /*
  * initialization verbs
  */
@@ -701,12 +803,20 @@ static struct hda_verb ad1986a_ultra_init[] = {
 	{ } /* end */
 };
 
+/* pin sensing on HP jack */
+static struct hda_verb ad1986a_hp_init_verbs[] = {
+	{0x1a, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1986A_HP_EVENT},
+	{}
+};
+
+
 /* models */
 enum {
 	AD1986A_6STACK,
 	AD1986A_3STACK,
 	AD1986A_LAPTOP,
 	AD1986A_LAPTOP_EAPD,
+	AD1986A_LAPTOP_AUTOMUTE,
 	AD1986A_ULTRA,
 	AD1986A_MODELS
 };
@@ -716,6 +826,7 @@ static const char *ad1986a_models[AD1986A_MODELS] = {
 	[AD1986A_3STACK]	= "3stack",
 	[AD1986A_LAPTOP]	= "laptop",
 	[AD1986A_LAPTOP_EAPD]	= "laptop-eapd",
+	[AD1986A_LAPTOP_AUTOMUTE] = "laptop-automute",
 	[AD1986A_ULTRA]		= "ultra",
 };
 
@@ -744,7 +855,7 @@ static struct snd_pci_quirk ad1986a_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x144d, 0xc027, "Samsung Q1", AD1986A_ULTRA),
 	SND_PCI_QUIRK(0x17aa, 0x1011, "Lenovo M55", AD1986A_LAPTOP),
 	SND_PCI_QUIRK(0x17aa, 0x1017, "Lenovo A60", AD1986A_3STACK),
-	SND_PCI_QUIRK(0x17aa, 0x2066, "Lenovo N100", AD1986A_LAPTOP_EAPD),
+	SND_PCI_QUIRK(0x17aa, 0x2066, "Lenovo N100", AD1986A_LAPTOP_AUTOMUTE),
 	SND_PCI_QUIRK(0x17c0, 0x2017, "Samsung M50", AD1986A_LAPTOP),
 	{}
 };
@@ -821,6 +932,19 @@ static int patch_ad1986a(struct hda_codec *codec)
 		spec->multiout.dig_out_nid = 0;
 		spec->input_mux = &ad1986a_laptop_eapd_capture_source;
 		break;
+	case AD1986A_LAPTOP_AUTOMUTE:
+		spec->mixers[0] = ad1986a_laptop_automute_mixers;
+		spec->num_init_verbs = 3;
+		spec->init_verbs[1] = ad1986a_eapd_init_verbs;
+		spec->init_verbs[2] = ad1986a_hp_init_verbs;
+		spec->multiout.max_channels = 2;
+		spec->multiout.num_dacs = 1;
+		spec->multiout.dac_nids = ad1986a_laptop_dac_nids;
+		spec->multiout.dig_out_nid = 0;
+		spec->input_mux = &ad1986a_laptop_eapd_capture_source;
+		codec->patch_ops.unsol_event = ad1986a_hp_unsol_event;
+		codec->patch_ops.init = ad1986a_hp_init;
+		break;
 	case AD1986A_ULTRA:
 		spec->mixers[0] = ad1986a_laptop_eapd_mixers;
 		spec->num_init_verbs = 2;