diff options
| author | Takashi Iwai <tiwai@suse.de> | 2012-09-12 16:14:37 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-09-12 16:14:37 +0200 |
| commit | 0afdb8f2869610b7c2eb99d75ba8b9003b8e88d7 (patch) | |
| tree | 4b3ce7af56ae27002b21aca315115365df5cb275 /sound/pci | |
| parent | 7fb6861d62b24fd0056a52275e5f74db0ef66f88 (diff) | |
ALSA: ymfpci: Define channel maps
Provide channel maps for individual stereo streams of YMFPCI.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/ymfpci/ymfpci_main.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c index ee8b6366e48d..50b0804df904 100644 --- a/sound/pci/ymfpci/ymfpci_main.c +++ b/sound/pci/ymfpci/ymfpci_main.c @@ -1166,6 +1166,11 @@ int __devinit snd_ymfpci_pcm(struct snd_ymfpci *chip, int device, struct snd_pcm snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 64*1024, 256*1024); + err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, + snd_pcm_std_chmaps, 2, 0, NULL); + if (err < 0) + return err; + if (rpcm) *rpcm = pcm; return 0; @@ -1257,6 +1262,14 @@ static struct snd_pcm_ops snd_ymfpci_playback_4ch_ops = { .pointer = snd_ymfpci_playback_pointer, }; +static const struct snd_pcm_chmap_elem surround_map[] = { + { .channels = 1, + .map = { SNDRV_CHMAP_UNKNOWN } }, + { .channels = 2, + .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, + { } +}; + int __devinit snd_ymfpci_pcm_4ch(struct snd_ymfpci *chip, int device, struct snd_pcm ** rpcm) { struct snd_pcm *pcm; @@ -1278,6 +1291,11 @@ int __devinit snd_ymfpci_pcm_4ch(struct snd_ymfpci *chip, int device, struct snd snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 64*1024, 256*1024); + err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, + surround_map, 2, 0, NULL); + if (err < 0) + return err; + if (rpcm) *rpcm = pcm; return 0; |