From: Eliot Blennerhassett eblennerhassett@audioscience.com
Mute functionality was recently added to the DSP firmware
Signed-off-by: Eliot Blennerhassett eblennerhassett@audioscience.com --- sound/pci/asihpi/asihpi.c | 51 ++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 50 insertions(+), 1 deletions(-)
diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c index 8033d85..47366fb 100644 --- a/sound/pci/asihpi/asihpi.c +++ b/sound/pci/asihpi/asihpi.c @@ -1486,11 +1486,48 @@ static int snd_asihpi_volume_put(struct snd_kcontrol *kcontrol,
static const DECLARE_TLV_DB_SCALE(db_scale_100, -10000, VOL_STEP_mB, 0);
+static int snd_asihpi_volume_mute_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + return 0; +} + +static int snd_asihpi_volume_mute_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u32 mute; + + hpi_handle_error(hpi_volume_get_mute(h_control, &mute)); + ucontrol->value.integer.value[0] = mute ? 0 : 1; + + return 0; +} + +static int snd_asihpi_volume_mute_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + int change = 1; + /* HPI currently only supports all or none muting of multichannel volume + ALSA Switch element has opposite sense to HPI mute: on==unmuted, off=muted + */ + int mute = ucontrol->value.integer.value[0] ? 0 : HPI_BITMASK_ALL_CHANNELS; + hpi_handle_error(hpi_volume_set_mute(h_control, mute)); + return change; +} + static int __devinit snd_asihpi_volume_add(struct snd_card_asihpi *asihpi, struct hpi_control *hpi_ctl) { struct snd_card *card = asihpi->card; struct snd_kcontrol_new snd_control; + int err; + u32 mute;
asihpi_ctl_init(&snd_control, hpi_ctl, "Volume"); snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | @@ -1500,7 +1537,19 @@ static int __devinit snd_asihpi_volume_add(struct snd_card_asihpi *asihpi, snd_control.put = snd_asihpi_volume_put; snd_control.tlv.p = db_scale_100;
- return ctl_add(card, &snd_control, asihpi); + err = ctl_add(card, &snd_control, asihpi); + if (err) + return err; + + if (hpi_volume_get_mute(hpi_ctl->h_control, &mute) == 0) { + asihpi_ctl_init(&snd_control, hpi_ctl, "Switch"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_control.info = snd_asihpi_volume_mute_info; + snd_control.get = snd_asihpi_volume_mute_get; + snd_control.put = snd_asihpi_volume_mute_put; + err = ctl_add(card, &snd_control, asihpi); + } + return err; }
/*------------------------------------------------------------