ALSA: hda: Input port AMP controls

Added support for controlling hardware gain amps on input ports
using a volume control mixer with a mux selecting the port being controlled.

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

3 files changed, 145 insertions, 11 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 531364d35353..c742e101d91e 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -961,15 +961,6 @@ void snd_hda_codec_resume_amp(struct hda_codec *codec)
 }
 #endif /* SND_HDA_NEEDS_RESUME */
 
-/*
- * AMP control callbacks
- */
-/* retrieve parameters from private_value */
-#define get_amp_nid(kc)         ((kc)->private_value & 0xffff)
-#define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
-#define get_amp_direction(kc)   (((kc)->private_value >> 18) & 0x1)
-#define get_amp_index(kc)       (((kc)->private_value >> 19) & 0xf)
-
 /* volume */
 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
                                   struct snd_ctl_elem_info *uinfo)
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 5c9e578f7f2d..d688f50cdfce 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -418,4 +418,13 @@ int snd_hda_check_amp_list_power(struct hda_codec *codec,
                                  hda_nid_t nid);
 #endif /* CONFIG_SND_HDA_POWER_SAVE */
 
+/*
+ * AMP control callbacks
+ */
+/* retrieve parameters from private_value */
+#define get_amp_nid(kc)         ((kc)->private_value & 0xffff)
+#define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
+#define get_amp_direction(kc)   (((kc)->private_value >> 18) & 0x1)
+#define get_amp_index(kc)       (((kc)->private_value >> 19) & 0xf)
+
 #endif /* __SOUND_HDA_LOCAL_H */
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 9744ae31dc73..d3c88c269da0 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -157,10 +157,13 @@ struct sigmatel_spec {
         unsigned int num_pwrs;
         unsigned int *pwr_mapping;
         hda_nid_t *pwr_nids;
+        hda_nid_t *amp_nids;
         hda_nid_t *dac_list;
 
         /* playback */
         struct hda_input_mux *mono_mux;
+        struct hda_input_mux *amp_mux;
+        unsigned int cur_amux;
         unsigned int cur_mmux;
         struct hda_multi_out multiout;
         hda_nid_t dac_nids[5];
@@ -216,6 +219,7 @@ struct sigmatel_spec {
         struct hda_input_mux private_dimux;
         struct hda_input_mux private_imux;
         struct hda_input_mux private_smux;
+        struct hda_input_mux private_amp_mux;
         struct hda_input_mux private_mono_mux;
 };
 
@@ -244,6 +248,10 @@ static hda_nid_t stac92hd73xx_adc_nids[2] = {
         0x1a, 0x1b
 };
 
+static hda_nid_t stac92hd73xx_amp_nids[4] = {
+        0x0b, 0x0c, 0x0e, 0
+};
+
 #define STAC92HD73XX_NUM_DMICS  2
 static hda_nid_t stac92hd73xx_dmic_nids[STAC92HD73XX_NUM_DMICS + 1] = {
         0x13, 0x14, 0
@@ -449,6 +457,34 @@ static hda_nid_t stac9205_pin_nids[12] = {
         0x21, 0x22,
 };
 
+#define stac92xx_amp_volume_info snd_hda_mixer_amp_volume_info
+
+static int stac92xx_amp_volume_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;
+        hda_nid_t nid = spec->amp_nids[spec->cur_amux];
+
+        kcontrol->private_value ^= get_amp_nid(kcontrol);
+        kcontrol->private_value |= nid;
+
+        return snd_hda_mixer_amp_volume_get(kcontrol, ucontrol);
+}
+
+static int stac92xx_amp_volume_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;
+        hda_nid_t nid = spec->amp_nids[spec->cur_amux];
+
+        kcontrol->private_value ^= get_amp_nid(kcontrol);
+        kcontrol->private_value |= nid;
+
+        return snd_hda_mixer_amp_volume_put(kcontrol, ucontrol);
+}
+
 static int stac92xx_dmux_enum_info(struct snd_kcontrol *kcontrol,
                                    struct snd_ctl_elem_info *uinfo)
 {
@@ -564,6 +600,41 @@ static int stac92xx_mono_mux_enum_put(struct snd_kcontrol *kcontrol,
                                      spec->mono_nid, &spec->cur_mmux);
 }
 
+static int stac92xx_amp_mux_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->amp_mux, uinfo);
+}
+
+static int stac92xx_amp_mux_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;
+
+        ucontrol->value.enumerated.item[0] = spec->cur_amux;
+        return 0;
+}
+
+static int stac92xx_amp_mux_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;
+        struct snd_kcontrol *ctl =
+                snd_hda_find_mixer_ctl(codec, "Amp Capture Volume");
+        if (!ctl)
+                return -EINVAL;
+
+        snd_ctl_notify(codec->bus->card, SNDRV_CTL_EVENT_MASK_VALUE |
+                SNDRV_CTL_EVENT_MASK_INFO, &ctl->id);
+
+        return snd_hda_input_mux_put(codec, spec->amp_mux, ucontrol,
+                                     0, &spec->cur_amux);
+}
+
 #define stac92xx_aloopback_info snd_ctl_boolean_mono_info
 
 static int stac92xx_aloopback_get(struct snd_kcontrol *kcontrol,
@@ -838,6 +909,31 @@ static struct hda_verb stac9205_core_init[] = {
                 .put = stac92xx_mono_mux_enum_put, \
         }
 
+#define STAC_AMP_MUX \
+        { \
+                .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+                .name = "Amp Selector Capture Switch", \
+                .count = 1, \
+                .info = stac92xx_amp_mux_enum_info, \
+                .get = stac92xx_amp_mux_enum_get, \
+                .put = stac92xx_amp_mux_enum_put, \
+        }
+
+#define STAC_AMP_VOL(xname, nid, chs, idx, dir) \
+        { \
+                .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+                .name = xname, \
+                .index = 0, \
+                .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
+                        SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
+                        SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
+                .info = stac92xx_amp_volume_info, \
+                .get = stac92xx_amp_volume_get, \
+                .put = stac92xx_amp_volume_put, \
+                .tlv = { .c = snd_hda_mixer_amp_tlv }, \
+                .private_value = HDA_COMPOSE_AMP_VAL(nid, chs, idx, dir) \
+        }
+
 #define STAC_INPUT_SOURCE(cnt) \
         { \
                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
@@ -2421,6 +2517,8 @@ enum {
         STAC_CTL_WIDGET_VOL,
         STAC_CTL_WIDGET_MUTE,
         STAC_CTL_WIDGET_MONO_MUX,
+        STAC_CTL_WIDGET_AMP_MUX,
+        STAC_CTL_WIDGET_AMP_VOL,
         STAC_CTL_WIDGET_HP_SWITCH,
         STAC_CTL_WIDGET_IO_SWITCH,
         STAC_CTL_WIDGET_CLFE_SWITCH
@@ -2430,6 +2528,8 @@ static struct snd_kcontrol_new stac92xx_control_templates[] = {
         HDA_CODEC_VOLUME(NULL, 0, 0, 0),
         HDA_CODEC_MUTE(NULL, 0, 0, 0),
         STAC_MONO_MUX,
+        STAC_AMP_MUX,
+        STAC_AMP_VOL(NULL, 0, 0, 0, 0),
         STAC_CODEC_HP_SWITCH(NULL),
         STAC_CODEC_IO_SWITCH(NULL, 0),
         STAC_CODEC_CLFE_SWITCH(NULL, 0),
@@ -2847,6 +2947,35 @@ static int stac92xx_auto_create_mono_output_ctls(struct hda_codec *codec)
                                 "Mono Mux", spec->mono_nid);
 }
 
+/* labels for amp mux outputs */
+static const char *stac92xx_amp_labels[3] = {
+        "Front Microphone", "Microphone", "Line In"
+};
+
+/* create amp out controls mux on capable codecs */
+static int stac92xx_auto_create_amp_output_ctls(struct hda_codec *codec)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        struct hda_input_mux *amp_mux = &spec->private_amp_mux;
+        int i, err;
+
+        for (i = 0; i < ARRAY_SIZE(stac92xx_amp_labels); i++) {
+                amp_mux->items[amp_mux->num_items].label =
+                                        stac92xx_amp_labels[i];
+                amp_mux->items[amp_mux->num_items].index = i;
+                amp_mux->num_items++;
+        }
+
+        err = stac92xx_add_control(spec, STAC_CTL_WIDGET_AMP_MUX,
+                "Amp Selector Capture Switch", 0);
+        if (err < 0)
+                return err;
+        return stac92xx_add_control(spec, STAC_CTL_WIDGET_AMP_VOL,
+                "Amp Capture Volume",
+                HDA_COMPOSE_AMP_VAL(spec->amp_nids[0], 3, 0, HDA_INPUT));
+}
+
+
 /* create PC beep volume controls */
 static int stac92xx_auto_create_beep_ctls(struct hda_codec *codec,
                                                 hda_nid_t nid)
@@ -3216,7 +3345,11 @@ static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out
                 if (err < 0)
                         return err;
         }
-
+        if (spec->amp_nids) {
+                err = stac92xx_auto_create_amp_output_ctls(codec);
+                if (err < 0)
+                        return err;
+        }
         if (spec->num_dmics > 0)
                 if ((err = stac92xx_auto_create_dmic_input_ctls(codec,
                                                 &spec->autocfg)) < 0)
@@ -3249,7 +3382,7 @@ static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out
                 spec->dinput_mux = &spec->private_dimux;
         spec->sinput_mux = &spec->private_smux;
         spec->mono_mux = &spec->private_mono_mux;
-
+        spec->amp_mux = &spec->private_amp_mux;
         return 1;
 }
 
@@ -3917,6 +4050,7 @@ again:
         spec->dmic_nids = stac92hd73xx_dmic_nids;
         spec->dmux_nids = stac92hd73xx_dmux_nids;
         spec->smux_nids = stac92hd73xx_smux_nids;
+        spec->amp_nids = stac92hd73xx_amp_nids;
 
         spec->num_muxes = ARRAY_SIZE(stac92hd73xx_mux_nids);
         spec->num_adcs = ARRAY_SIZE(stac92hd73xx_adc_nids);