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authorTakashi Iwai <tiwai@suse.de>2012-08-03 18:01:40 +0200
committerTakashi Iwai <tiwai@suse.de>2012-09-06 18:08:31 +0200
commite36e3b86c78cee9c7435eb33e0ef8a788193e812 (patch)
treea44ed8a8f0e7b832048d4fbd94a9041823cf1979 /sound/pci/atiixp.c
parent833a493b7ed2eb8f9059338a0ebf06bebbb6ae93 (diff)
ALSA: Implement channel maps for standard onboard AC97 drivers
Just set the channel maps depending on the hardware availability. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/atiixp.c')
-rw-r--r--sound/pci/atiixp.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index c744df5bb1c..368df8b0853 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -1250,6 +1250,7 @@ static struct atiixp_dma_ops snd_atiixp_spdif_dma_ops = {
static int __devinit snd_atiixp_pcm_new(struct atiixp *chip)
{
struct snd_pcm *pcm;
+ struct snd_pcm_chmap *chmap;
struct snd_ac97_bus *pbus = chip->ac97_bus;
int err, i, num_pcms;
@@ -1293,6 +1294,14 @@ static int __devinit snd_atiixp_pcm_new(struct atiixp *chip)
snd_dma_pci_data(chip->pci),
64*1024, 128*1024);
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ snd_pcm_alt_chmaps, chip->max_channels, 0,
+ &chmap);
+ if (err < 0)
+ return err;
+ chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
+ chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
+
/* no SPDIF support on codec? */
if (chip->pcms[ATI_PCM_SPDIF] && ! chip->pcms[ATI_PCM_SPDIF]->rates)
return 0;