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| author | Takashi Iwai <tiwai@suse.de> | 2010-10-11 15:16:20 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-10-11 15:16:20 +0200 |
| commit | 6a92934d9e987b6363db3e6a08e17bc0f2078c5d (patch) | |
| tree | 3a296a8607fdcae4ddb400a408f4f811b77c6c30 /sound/pci | |
| parent | f46119b73425df9d1e05c5d5e909a993d95b0218 (diff) | |
| download | kernel_samsung_smdk4412-6a92934d9e987b6363db3e6a08e17bc0f2078c5d.zip kernel_samsung_smdk4412-6a92934d9e987b6363db3e6a08e17bc0f2078c5d.tar.gz kernel_samsung_smdk4412-6a92934d9e987b6363db3e6a08e17bc0f2078c5d.tar.bz2 | |
ALSA: hda - Add input volume control for each mic/line-in pin
The input pins on cirrus codecs have also input amps. Let's make
control elemetns for them.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/patch_cirrus.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c index d9a3dbc..460fb2e 100644 --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -742,6 +742,27 @@ static struct hda_bind_ctls *make_bind_capture(struct hda_codec *codec, return bind; } +/* add a (input-boost) volume control to the given input pin */ +static int add_input_volume_control(struct hda_codec *codec, + struct auto_pin_cfg *cfg, + int item) +{ + hda_nid_t pin = cfg->inputs[item].pin; + u32 caps; + const char *label; + struct snd_kcontrol *kctl; + + if (!(get_wcaps(codec, pin) & AC_WCAP_IN_AMP)) + return 0; + caps = query_amp_caps(codec, pin, HDA_INPUT); + caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; + if (caps <= 1) + return 0; + label = hda_get_autocfg_input_label(codec, cfg, item); + return add_volume(codec, label, 0, + HDA_COMPOSE_AMP_VAL(pin, 3, 0, HDA_INPUT), 1, &kctl); +} + static int build_input(struct hda_codec *codec) { struct cs_spec *spec = codec->spec; @@ -781,6 +802,12 @@ static int build_input(struct hda_codec *codec) return err; } + for (i = 0; i < spec->num_inputs; i++) { + err = add_input_volume_control(codec, &spec->autocfg, i); + if (err < 0) + return err; + } + return 0; } |