[ALSA] oxygen: make all DMA channels configurable
Allow the card models to specify whether each of the hardware DMA
channels is used.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c
index 0f67def..5f15d35 100644
--- a/sound/pci/oxygen/oxygen_pcm.c
+++ b/sound/pci/oxygen/oxygen_pcm.c
@@ -681,15 +681,22 @@
int __devinit oxygen_pcm_init(struct oxygen *chip)
{
struct snd_pcm *pcm;
+ int outs, ins;
int err;
- err = snd_pcm_new(chip->card, "Analog", 0, 1, 1, &pcm);
+ outs = 1; /* OXYGEN_CHANNEL_MULTICH is always used */
+ ins = !!(chip->model->used_channels & (OXYGEN_CHANNEL_A |
+ OXYGEN_CHANNEL_B));
+ err = snd_pcm_new(chip->card, "Analog", 0, outs, ins, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &oxygen_multich_ops);
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
- chip->model->record_from_dma_b ?
- &oxygen_rec_b_ops : &oxygen_rec_a_ops);
+ if (chip->model->used_channels & OXYGEN_CHANNEL_A)
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
+ &oxygen_rec_a_ops);
+ else if (chip->model->used_channels & OXYGEN_CHANNEL_B)
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
+ &oxygen_rec_b_ops);
pcm->private_data = chip;
pcm->private_free = oxygen_pcm_free;
strcpy(pcm->name, "Analog");
@@ -697,32 +704,51 @@
SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci),
512 * 1024, 2048 * 1024);
- snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
- SNDRV_DMA_TYPE_DEV,
- snd_dma_pci_data(chip->pci),
- 128 * 1024, 256 * 1024);
-
- err = snd_pcm_new(chip->card, "Digital", 1, 1, 1, &pcm);
- if (err < 0)
- return err;
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &oxygen_spdif_ops);
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &oxygen_rec_c_ops);
- pcm->private_data = chip;
- pcm->private_free = oxygen_pcm_free;
- strcpy(pcm->name, "Digital");
- snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ if (ins)
+ snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
+ SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci),
128 * 1024, 256 * 1024);
- if (chip->has_ac97_1) {
- err = snd_pcm_new(chip->card, "AC97", 2, 1, 0, &pcm);
+ outs = !!(chip->model->used_channels & OXYGEN_CHANNEL_SPDIF);
+ ins = !!(chip->model->used_channels & OXYGEN_CHANNEL_C);
+ if (outs | ins) {
+ err = snd_pcm_new(chip->card, "Digital", 1, outs, ins, &pcm);
if (err < 0)
return err;
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
- &oxygen_ac97_ops);
+ if (outs)
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ &oxygen_spdif_ops);
+ if (ins)
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
+ &oxygen_rec_c_ops);
pcm->private_data = chip;
pcm->private_free = oxygen_pcm_free;
- strcpy(pcm->name, "Front Panel");
+ strcpy(pcm->name, "Digital");
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ snd_dma_pci_data(chip->pci),
+ 128 * 1024, 256 * 1024);
+ }
+
+ outs = chip->has_ac97_1 &&
+ (chip->model->used_channels & OXYGEN_CHANNEL_AC97);
+ ins = (chip->model->used_channels & (OXYGEN_CHANNEL_A |
+ OXYGEN_CHANNEL_B))
+ == (OXYGEN_CHANNEL_A | OXYGEN_CHANNEL_B);
+ if (outs | ins) {
+ err = snd_pcm_new(chip->card, ins ? "Analog2" : "AC97",
+ 2, outs, ins, &pcm);
+ if (err < 0)
+ return err;
+ if (outs)
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ &oxygen_ac97_ops);
+ if (ins)
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
+ &oxygen_rec_b_ops);
+ pcm->private_data = chip;
+ pcm->private_free = oxygen_pcm_free;
+ strcpy(pcm->name, ins ? "Analog 2" : "Front Panel");
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci),
128 * 1024, 256 * 1024);