mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

sound: via82xx: deactivate DXS controls of inactive streams 

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
sound/pci/via82xx.c
View File

@ -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;
}
}
}