diff options
| author |   Raymond Yau <superquad.vortex2@gmail.com> | 2012-01-17 11:32:17 +0800 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2012-01-24 15:25:08 +0100 |
| commit | bb92b7c4ed4f7d5102bb1623cc8a1a9960ddfc08 (patch) | |
| tree | d92a7641af16f2b7952a4c091756e067650c11b2 /sound/pci/au88x0/au88x0_core.c | |
| parent | Linux 3.3-rc1 (diff) | |
| download | linux-dev-bb92b7c4ed4f7d5102bb1623cc8a1a9960ddfc08.tar.xz linux-dev-bb92b7c4ed4f7d5102bb1623cc8a1a9960ddfc08.zip | |
ALSA: Au88x0 - Implement subdevice volume controls
- add "PCM Playback Volume" controls for 16 playback subdevices
This allow application to change the volume of each subdevice
by using hardware mixer of au88x0 and default is zero gain/attenunation.
Signed-off-by: Raymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/au88x0/au88x0_core.c')
| -rw-r--r-- | sound/pci/au88x0/au88x0_core.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/sound/pci/au88x0/au88x0_core.c b/sound/pci/au88x0/au88x0_core.c index 6933a27a5d76..1181c5ec2d4f 100644 --- a/sound/pci/au88x0/au88x0_core.c +++ b/sound/pci/au88x0/au88x0_core.c @@ -2050,8 +2050,6 @@ vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype) } /* Default Connections */ -static int -vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type); static void vortex_connect_default(vortex_t * vortex, int en) { @@ -2111,15 +2109,13 @@ static void vortex_connect_default(vortex_t * vortex, int en) Return: Return allocated DMA or same DMA passed as "dma" when dma >= 0. */ static int -vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type) +vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir, + int type, int subdev) { stream_t *stream; int i, en; + struct pcm_vol *p; - if ((nr_ch == 3) - || ((dir == SNDRV_PCM_STREAM_CAPTURE) && (nr_ch > 2))) - return -EBUSY; - if (dma >= 0) { en = 0; vortex_adb_checkinout(vortex, @@ -2250,6 +2246,14 @@ vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type) MIX_DEFIGAIN); #endif } + if (stream->type == VORTEX_PCM_ADB && en) { + p = &vortex->pcm_vol[subdev]; + p->dma = dma; + for (i = 0; i < nr_ch; i++) + p->mixin[i] = mix[i]; + for (i = 0; i < ch_top; i++) + p->vol[i] = 0; + } } #ifndef CHIP_AU8820 else { |