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>
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index 1e615c4..9d43235 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -1260,6 +1260,14 @@
.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 @@
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 @@
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;