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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/via82xx.c
parent833a493b7ed2eb8f9059338a0ebf06bebbb6ae93 (diff)
downloadlinux-e36e3b86c78cee9c7435eb33e0ef8a788193e812.tar.bz2
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/via82xx.c')
-rw-r--r--sound/pci/via82xx.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index e3d32e2d574e..f0b4efdb483c 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -1440,6 +1440,7 @@ static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
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 @@ static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
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 @@ static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
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_via8233_pcm_new(struct via82xx *chip)
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 @@ static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
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;