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/via82xx.c b/sound/pci/via82xx.c
index e3d32e2..f0b4efd 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -1440,6 +1440,7 @@
static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
{
struct snd_pcm *pcm;
+ struct snd_pcm_chmap *chmap;
int i, err;
chip->playback_devno = 0; /* x 4 */
@@ -1467,6 +1468,12 @@
snd_dma_pci_data(chip->pci),
64*1024, VIA_MAX_BUFSIZE);
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ snd_pcm_std_chmaps, 2, 0,
+ &chmap);
+ if (err < 0)
+ return err;
+
/* PCM #1: multi-channel playback and 2nd capture */
err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
if (err < 0)
@@ -1484,6 +1491,14 @@
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
snd_dma_pci_data(chip->pci),
64*1024, VIA_MAX_BUFSIZE);
+
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ snd_pcm_alt_chmaps, 6, 0,
+ &chmap);
+ if (err < 0)
+ return err;
+ chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
+
return 0;
}
@@ -1493,6 +1508,7 @@
static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
{
struct snd_pcm *pcm;
+ struct snd_pcm_chmap *chmap;
int err;
chip->multi_devno = 0;
@@ -1519,6 +1535,13 @@
snd_dma_pci_data(chip->pci),
64*1024, VIA_MAX_BUFSIZE);
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ snd_pcm_alt_chmaps, 6, 0,
+ &chmap);
+ if (err < 0)
+ return err;
+ chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
+
/* SPDIF supported? */
if (! ac97_can_spdif(chip->ac97))
return 0;