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>
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index c744df5..368df8b 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -1250,6 +1250,7 @@
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 @@
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;