ALSA: hda: SPDIF mux controls

Dynamically create mux controls for SPDIF outs on certain IDT/Sigmatel codecs.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 112 insertions, 2 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index c72c748322a1..8ff7b95c34e5 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -173,6 +173,9 @@ struct sigmatel_spec {
         unsigned int num_dmics;
         hda_nid_t *dmux_nids;
         unsigned int num_dmuxes;
+        hda_nid_t *smux_nids;
+        unsigned int num_smuxes;
+
         hda_nid_t dig_in_nid;
         hda_nid_t mono_nid;
         hda_nid_t anabeep_nid;
@@ -193,6 +196,8 @@ struct sigmatel_spec {
         unsigned int cur_dmux[2];
         struct hda_input_mux *input_mux;
         unsigned int cur_mux[3];
+        struct hda_input_mux *sinput_mux;
+        unsigned int cur_smux[2];
         unsigned int powerdown_adcs;
 
         /* i/o switches */
@@ -209,6 +214,7 @@ struct sigmatel_spec {
         struct snd_kcontrol_new *kctl_alloc;
         struct hda_input_mux private_dimux;
         struct hda_input_mux private_imux;
+        struct hda_input_mux private_smux;
         struct hda_input_mux private_mono_mux;
 };
 
@@ -251,6 +257,10 @@ static hda_nid_t stac92hd73xx_dmux_nids[2] = {
         0x20, 0x21,
 };
 
+static hda_nid_t stac92hd73xx_smux_nids[2] = {
+        0x22, 0x23,
+};
+
 #define STAC92HD83XXX_NUM_DMICS 2
 static hda_nid_t stac92hd83xxx_dmic_nids[STAC92HD83XXX_NUM_DMICS + 1] = {
         0x11, 0x12, 0
@@ -294,6 +304,10 @@ static hda_nid_t stac92hd71bxx_dmux_nids[1] = {
         0x1c,
 };
 
+static hda_nid_t stac92hd71bxx_smux_nids[2] = {
+        0x24, 0x25,
+};
+
 static hda_nid_t stac92hd71bxx_dac_nids[1] = {
         0x10, /*0x11, */
 };
@@ -340,6 +354,10 @@ static hda_nid_t stac927x_mux_nids[3] = {
         0x15, 0x16, 0x17
 };
 
+static hda_nid_t stac927x_smux_nids[1] = {
+        0x21,
+};
+
 static hda_nid_t stac927x_dac_nids[6] = {
         0x02, 0x03, 0x04, 0x05, 0x06, 0
 };
@@ -365,6 +383,10 @@ static hda_nid_t stac9205_dmux_nids[1] = {
         0x1d,
 };
 
+static hda_nid_t stac9205_smux_nids[1] = {
+        0x21,
+};
+
 #define STAC9205_NUM_DMICS      2
 static hda_nid_t stac9205_dmic_nids[STAC9205_NUM_DMICS + 1] = {
         0x17, 0x18, 0
@@ -388,7 +410,7 @@ static hda_nid_t stac922x_pin_nids[10] = {
 static hda_nid_t stac92hd73xx_pin_nids[13] = {
         0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
         0x0f, 0x10, 0x11, 0x12, 0x13,
-        0x14, 0x1e, 0x22
+        0x14, 0x22, 0x23
 };
 
 static hda_nid_t stac92hd83xxx_pin_nids[14] = {
@@ -443,6 +465,36 @@ static int stac92xx_dmux_enum_put(struct snd_kcontrol *kcontrol,
                         spec->dmux_nids[dmux_idx], &spec->cur_dmux[dmux_idx]);
 }
 
+static int stac92xx_smux_enum_info(struct snd_kcontrol *kcontrol,
+                                   struct snd_ctl_elem_info *uinfo)
+{
+        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+        struct sigmatel_spec *spec = codec->spec;
+        return snd_hda_input_mux_info(spec->sinput_mux, uinfo);
+}
+
+static int stac92xx_smux_enum_get(struct snd_kcontrol *kcontrol,
+                                  struct snd_ctl_elem_value *ucontrol)
+{
+        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+        struct sigmatel_spec *spec = codec->spec;
+        unsigned int smux_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+
+        ucontrol->value.enumerated.item[0] = spec->cur_smux[smux_idx];
+        return 0;
+}
+
+static int stac92xx_smux_enum_put(struct snd_kcontrol *kcontrol,
+                                  struct snd_ctl_elem_value *ucontrol)
+{
+        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+        struct sigmatel_spec *spec = codec->spec;
+        unsigned int smux_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+
+        return snd_hda_input_mux_put(codec, spec->sinput_mux, ucontrol,
+                        spec->smux_nids[smux_idx], &spec->cur_smux[smux_idx]);
+}
+
 static int stac92xx_mux_enum_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 {
         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
@@ -993,6 +1045,15 @@ static struct snd_kcontrol_new stac_dmux_mixer = {
         .put = stac92xx_dmux_enum_put,
 };
 
+static struct snd_kcontrol_new stac_smux_mixer = {
+        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+        .name = "IEC958 Mux",
+        /* count set later */
+        .info = stac92xx_smux_enum_info,
+        .get = stac92xx_smux_enum_get,
+        .put = stac92xx_smux_enum_put,
+};
+
 static const char *slave_vols[] = {
         "Front Playback Volume",
         "Surround Playback Volume",
@@ -1044,6 +1105,13 @@ static int stac92xx_build_controls(struct hda_codec *codec)
                 if (err < 0)
                         return err;
         }
+        if (spec->num_smuxes > 0) {
+                stac_smux_mixer.count = spec->num_smuxes;
+                err = snd_ctl_add(codec->bus->card,
+                                  snd_ctl_new1(&stac_smux_mixer, codec));
+                if (err < 0)
+                        return err;
+        }
 
         if (spec->multiout.dig_out_nid) {
                 err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
@@ -2811,6 +2879,34 @@ static int stac92xx_auto_create_mux_input_ctls(struct hda_codec *codec)
         return 0;
 };
 
+static const char *stac92xx_spdif_labels[3] = {
+        "Digital Playback", "Analog Mux 1", "Analog Mux 2"
+};
+
+static int stac92xx_auto_create_spdif_mux_ctls(struct hda_codec *codec)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        struct hda_input_mux *spdif_mux = &spec->private_smux;
+        int i, num_cons;
+        hda_nid_t con_lst[ARRAY_SIZE(stac92xx_spdif_labels)];
+
+        num_cons = snd_hda_get_connections(codec,
+                                spec->smux_nids[0],
+                                con_lst,
+                                HDA_MAX_NUM_INPUTS);
+        if (!num_cons || num_cons > ARRAY_SIZE(stac92xx_spdif_labels))
+                return -EINVAL;
+
+        for (i = 0; i < num_cons; i++) {
+                spdif_mux->items[spdif_mux->num_items].label =
+                                        stac92xx_spdif_labels[i];
+                spdif_mux->items[spdif_mux->num_items].index = i;
+                spdif_mux->num_items++;
+        }
+
+        return 0;
+}
+
 /* labels for dmic mux inputs */
 static const char *stac92xx_dmic_labels[5] = {
         "Analog Inputs", "Digital Mic 1", "Digital Mic 2",
@@ -3114,6 +3210,11 @@ static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out
                 if (err < 0)
                         return err;
         }
+        if (spec->num_smuxes > 0) {
+                err = stac92xx_auto_create_spdif_mux_ctls(codec);
+                if (err < 0)
+                        return err;
+        }
 
         spec->multiout.max_channels = spec->multiout.num_dacs * 2;
         if (spec->multiout.max_channels > 2)
@@ -3130,6 +3231,7 @@ static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out
         spec->input_mux = &spec->private_imux;
         if (!spec->dinput_mux)
                 spec->dinput_mux = &spec->private_dimux;
+        spec->sinput_mux = &spec->private_smux;
         spec->mono_mux = &spec->private_mono_mux;
 
         return 1;
@@ -3800,10 +3902,12 @@ again:
         spec->adc_nids = stac92hd73xx_adc_nids;
         spec->dmic_nids = stac92hd73xx_dmic_nids;
         spec->dmux_nids = stac92hd73xx_dmux_nids;
+        spec->smux_nids = stac92hd73xx_smux_nids;
 
         spec->num_muxes = ARRAY_SIZE(stac92hd73xx_mux_nids);
         spec->num_adcs = ARRAY_SIZE(stac92hd73xx_adc_nids);
         spec->num_dmuxes = ARRAY_SIZE(stac92hd73xx_dmux_nids);
+        spec->num_smuxes = ARRAY_SIZE(stac92hd73xx_smux_nids);
         spec->dinput_mux = &stac92hd73xx_dmux;
         /* GPIO0 High = Enable EAPD */
         spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x1;
@@ -3842,7 +3946,7 @@ again:
         spec->num_pwrs = ARRAY_SIZE(stac92hd73xx_pwr_nids);
         spec->pwr_nids = stac92hd73xx_pwr_nids;
 
-        err = stac92xx_parse_auto_config(codec, 0x22, 0x24);
+        err = stac92xx_parse_auto_config(codec, 0x25, 0x27);
 
         if (!err) {
                 if (spec->board_config < 0) {
@@ -4081,11 +4185,13 @@ again:
         spec->adc_nids = stac92hd71bxx_adc_nids;
         spec->dmic_nids = stac92hd71bxx_dmic_nids;
         spec->dmux_nids = stac92hd71bxx_dmux_nids;
+        spec->smux_nids = stac92hd71bxx_smux_nids;
         spec->pwr_nids = stac92hd71bxx_pwr_nids;
 
         spec->num_muxes = ARRAY_SIZE(stac92hd71bxx_mux_nids);
         spec->num_adcs = ARRAY_SIZE(stac92hd71bxx_adc_nids);
         spec->num_dmics = STAC92HD71BXX_NUM_DMICS;
+        spec->num_smuxes = ARRAY_SIZE(stac92hd71bxx_smux_nids);
         spec->num_dmuxes = ARRAY_SIZE(stac92hd71bxx_dmux_nids);
 
         spec->multiout.num_dacs = 1;
@@ -4254,6 +4360,8 @@ static int patch_stac927x(struct hda_codec *codec)
         spec->num_adcs = ARRAY_SIZE(stac927x_adc_nids);
         spec->mux_nids = stac927x_mux_nids;
         spec->num_muxes = ARRAY_SIZE(stac927x_mux_nids);
+        spec->smux_nids = stac927x_smux_nids;
+        spec->num_smuxes = ARRAY_SIZE(stac927x_smux_nids);
         spec->dac_list = stac927x_dac_nids;
         spec->multiout.dac_nids = spec->dac_nids;
 
@@ -4375,6 +4483,8 @@ static int patch_stac9205(struct hda_codec *codec)
         spec->num_adcs = ARRAY_SIZE(stac9205_adc_nids);
         spec->mux_nids = stac9205_mux_nids;
         spec->num_muxes = ARRAY_SIZE(stac9205_mux_nids);
+        spec->smux_nids = stac9205_smux_nids;
+        spec->num_smuxes = ARRAY_SIZE(stac9205_smux_nids);
         spec->dmic_nids = stac9205_dmic_nids;
         spec->num_dmics = STAC9205_NUM_DMICS;
         spec->dmux_nids = stac9205_dmux_nids;