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sound: via82xx: deactivate DXS controls of inactive streams

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Activate the DXS volume controls only when the corresponding stream is
being used.  This makes the behaviour consistent with the other drivers
that have per-stream volume controls.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clemens Ladisch 2009-10-22 09:04:09 +02:00 committed by Takashi Iwai
parent 467cc16920
commit 3d00941371
1 changed files with 52 additions and 7 deletions
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59
sound/pci/via82xx.c
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@ -386,6 +386,7 @@ struct via82xx {
struct snd_pcm *pcms[2];
struct snd_rawmidi *rmidi;
struct snd_kcontrol *dxs_controls[4];
struct snd_ac97_bus *ac97_bus;
struct snd_ac97 *ac97;
@ -1216,9 +1217,9 @@ static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
/*
* open callback for playback on via686 and via823x DSX
* open callback for playback on via686
*/
static int snd_via82xx_playback_open(struct snd_pcm_substream *substream)
static int snd_via686_playback_open(struct snd_pcm_substream *substream)
{
struct via82xx *chip = snd_pcm_substream_chip(substream);
struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
@ -1229,6 +1230,32 @@ static int snd_via82xx_playback_open(struct snd_pcm_substream *substream)
return 0;
}
/*
* open callback for playback on via823x DXS
*/
static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
{
struct via82xx *chip = snd_pcm_substream_chip(substream);
struct viadev *viadev;
unsigned int stream;
int err;
viadev = &chip->devs[chip->playback_devno + substream->number];
if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
return err;
stream = viadev->reg_offset / 0x10;
if (chip->dxs_controls[stream]) {
chip->playback_volume[stream][0] = 0;
chip->playback_volume[stream][1] = 0;
chip->dxs_controls[stream]->vd[0].access &=
~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
SNDRV_CTL_EVENT_MASK_INFO,
&chip->dxs_controls[stream]->id);
}
return 0;
}
/*
* open callback for playback on via823x multi-channel
*/
@ -1302,10 +1329,26 @@ static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
return 0;
}
static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
{
struct via82xx *chip = snd_pcm_substream_chip(substream);
struct viadev *viadev = substream->runtime->private_data;
unsigned int stream;
stream = viadev->reg_offset / 0x10;
if (chip->dxs_controls[stream]) {
chip->dxs_controls[stream]->vd[0].access |=
SNDRV_CTL_ELEM_ACCESS_INACTIVE;
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
&chip->dxs_controls[stream]->id);
}
return snd_via82xx_pcm_close(substream);
}
/* via686 playback callbacks */
static struct snd_pcm_ops snd_via686_playback_ops = {
.open = snd_via82xx_playback_open,
.open = snd_via686_playback_open,
.close = snd_via82xx_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_via82xx_hw_params,
@ -1331,8 +1374,8 @@ static struct snd_pcm_ops snd_via686_capture_ops = {
/* via823x DSX playback callbacks */
static struct snd_pcm_ops snd_via8233_playback_ops = {
.open = snd_via82xx_playback_open,
.close = snd_via82xx_pcm_close,
.open = snd_via8233_playback_open,
.close = snd_via8233_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_via82xx_hw_params,
.hw_free = snd_via82xx_hw_free,
@ -1709,8 +1752,9 @@ static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
.device = 0,
/* .subdevice set later */
.name = "PCM Playback Volume",
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ |
SNDRV_CTL_ELEM_ACCESS_INACTIVE,
.info = snd_via8233_dxs_volume_info,
.get = snd_via8233_dxs_volume_get,
.put = snd_via8233_dxs_volume_put,
@ -1948,6 +1992,7 @@ static int __devinit snd_via8233_init_misc(struct via82xx *chip)
err = snd_ctl_add(chip->card, kctl);
if (err < 0)
return err;
chip->dxs_controls[i] = kctl;
}
}
}