diff options
Diffstat (limited to 'sound/pci/oxygen/oxygen.c')
| -rw-r--r-- | sound/pci/oxygen/oxygen.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c index d12fd9efe94e..3ad9eb00aebd 100644 --- a/sound/pci/oxygen/oxygen.c +++ b/sound/pci/oxygen/oxygen.c @@ -352,6 +352,70 @@ static void set_ak5385_params(struct oxygen *chip, value, GPIO_AK5385_DFS_MASK); } +static int rolloff_info(struct snd_kcontrol *ctl, + struct snd_ctl_elem_info *info) +{ + static const char *const names[2] = { + "Sharp Roll-off", "Slow Roll-off" + }; + + info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + info->count = 1; + info->value.enumerated.items = 2; + if (info->value.enumerated.item >= 2) + info->value.enumerated.item = 1; + strcpy(info->value.enumerated.name, names[info->value.enumerated.item]); + return 0; +} + +static int rolloff_get(struct snd_kcontrol *ctl, + struct snd_ctl_elem_value *value) +{ + struct oxygen *chip = ctl->private_data; + struct generic_data *data = chip->model_data; + + value->value.enumerated.item[0] = + (data->ak4396_regs[0][AK4396_CONTROL_2] & AK4396_SLOW) != 0; + return 0; +} + +static int rolloff_put(struct snd_kcontrol *ctl, + struct snd_ctl_elem_value *value) +{ + struct oxygen *chip = ctl->private_data; + struct generic_data *data = chip->model_data; + unsigned int i; + int changed; + u8 reg; + + mutex_lock(&chip->mutex); + reg = data->ak4396_regs[0][AK4396_CONTROL_2]; + if (value->value.enumerated.item[0]) + reg |= AK4396_SLOW; + else + reg &= ~AK4396_SLOW; + changed = reg != data->ak4396_regs[0][AK4396_CONTROL_2]; + if (changed) { + for (i = 0; i < 4; ++i) + ak4396_write(chip, i, AK4396_CONTROL_2, reg); + } + mutex_unlock(&chip->mutex); + return changed; +} + +static const struct snd_kcontrol_new rolloff_control = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "DAC Filter Playback Enum", + .info = rolloff_info, + .get = rolloff_get, + .put = rolloff_put, +}; + +static int generic_mixer_init(struct oxygen *chip) +{ + return snd_ctl_add(chip->card, snd_ctl_new1(&rolloff_control, chip)); +} + static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0); static const struct oxygen_model model_generic = { @@ -359,6 +423,7 @@ static const struct oxygen_model model_generic = { .longname = "C-Media Oxygen HD Audio", .chip = "CMI8788", .init = generic_init, + .mixer_init = generic_mixer_init, .cleanup = generic_cleanup, .resume = generic_resume, .get_i2s_mclk = oxygen_default_i2s_mclk, |
