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authorTakashi Iwai <tiwai@suse.de>2012-09-12 15:53:26 +0200
committerTakashi Iwai <tiwai@suse.de>2012-09-12 15:53:26 +0200
commit7fb6861d62b24fd0056a52275e5f74db0ef66f88 (patch)
tree167f02a0d485067476fc640b76ffa7fd66ba87cd /sound/pci
parent3adc497f98dd062bcf4d832c659a3d706ece5249 (diff)
ALSA: ens1370: Define channel maps
Provide channel maps for individual stereo streams of ENS1370 and ENS1371. Note that the configuration of ENS1370 uses the secondary PCM as the front unlike ENS1371. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/ens1370.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index 1e615c4d12f8..9d432359d1cb 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -1260,6 +1260,14 @@ static struct snd_pcm_ops snd_ensoniq_capture_ops = {
.pointer = snd_ensoniq_capture_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 } },
+ { }
+};
+
static int __devinit snd_ensoniq_pcm(struct ensoniq * ensoniq, int device,
struct snd_pcm ** rpcm)
{
@@ -1287,6 +1295,16 @@ static int __devinit snd_ensoniq_pcm(struct ensoniq * ensoniq, int device,
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(ensoniq->pci), 64*1024, 128*1024);
+#ifdef CHIP1370
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ surround_map, 2, 0, NULL);
+#else
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ snd_pcm_std_chmaps, 2, 0, NULL);
+#endif
+ if (err < 0)
+ return err;
+
if (rpcm)
*rpcm = pcm;
return 0;
@@ -1317,6 +1335,16 @@ static int __devinit snd_ensoniq_pcm2(struct ensoniq * ensoniq, int device,
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(ensoniq->pci), 64*1024, 128*1024);
+#ifdef CHIP1370
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ snd_pcm_std_chmaps, 2, 0, NULL);
+#else
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ surround_map, 2, 0, NULL);
+#endif
+ if (err < 0)
+ return err;
+
if (rpcm)
*rpcm = pcm;
return 0;