/* hw_params callback */
static int
snd_vortex_pcm_hw_params(snd_pcm_substream_t * substream,
snd_pcm_hw_params_t * hw_params)
{
chip_t *chip = snd_pcm_substream_chip(substream);
stream_t *stream = (stream_t *) (substream->runtime->private_data);
snd_pcm_sgbuf_t *sgbuf;
int err;
// Alloc buffer memory.
err =
snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
if (err < 0) {
printk(KERN_ERR "Vortex: pcm page alloc failed!\n");
return err;
}
//sgbuf = (snd_pcm_sgbuf_t *) substream->runtime->dma_private;
sgbuf = snd_pcm_substream_sgbuf(substream);
/*
printk(KERN_INFO "Vortex: periods %d, period_bytes %d, channels = %d\n", params_periods(hw_params),
params_period_bytes(hw_params), params_channels(hw_params));
*/
// Make audio routes and config buffer DMA.
if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
int dma, type = VORTEX_PCM_TYPE(substream->pcm);
/* Dealloc any routes. */
if (stream != NULL)
vortex_adb_allocroute(chip, stream->dma,
stream->nr_ch, stream->dir,
stream->type);
/* Alloc routes. */
dma =
vortex_adb_allocroute(chip, -1,
params_channels(hw_params),
substream->stream, type);
if (dma < 0)
return dma;
stream = substream->runtime->private_data = &chip->dma_adb[dma];
stream->substream = substream;
/* Setup Buffers. */
vortex_adbdma_setbuffers(chip, dma, sgbuf,
params_period_bytes(hw_params),
params_periods(hw_params));
}
#ifndef CHIP_AU8810
else {
/* if (stream != NULL)
vortex_wt_allocroute(chip, substream->number, 0); */
vortex_wt_allocroute(chip, substream->number,
params_channels(hw_params));
stream = substream->runtime->private_data =
&chip->dma_wt[substream->number];
stream->dma = substream->number;
stream->substream = substream;
vortex_wtdma_setbuffers(chip, substream->number, sgbuf,
params_period_bytes(hw_params),
params_periods(hw_params));
}
#endif
return 0;
}
/* hw_params callback */
static int
snd_vortex_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
vortex_t *chip = snd_pcm_substream_chip(substream);
stream_t *stream = (stream_t *) (substream->runtime->private_data);
int err;
// Alloc buffer memory.
err =
snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
if (err < 0) {
dev_err(chip->card->dev, "Vortex: pcm page alloc failed!\n");
return err;
}
/*
pr_info( "Vortex: periods %d, period_bytes %d, channels = %d\n", params_periods(hw_params),
params_period_bytes(hw_params), params_channels(hw_params));
*/
spin_lock_irq(&chip->lock);
// Make audio routes and config buffer DMA.
if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
int dma, type = VORTEX_PCM_TYPE(substream->pcm);
/* Dealloc any routes. */
if (stream != NULL)
vortex_adb_allocroute(chip, stream->dma,
stream->nr_ch, stream->dir,
stream->type,
substream->number);
/* Alloc routes. */
dma =
vortex_adb_allocroute(chip, -1,
params_channels(hw_params),
substream->stream, type,
substream->number);
if (dma < 0) {
spin_unlock_irq(&chip->lock);
return dma;
}
stream = substream->runtime->private_data = &chip->dma_adb[dma];
stream->substream = substream;
/* Setup Buffers. */
vortex_adbdma_setbuffers(chip, dma,
params_period_bytes(hw_params),
params_periods(hw_params));
if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
chip->pcm_vol[substream->number].active = 1;
vortex_notify_pcm_vol_change(chip->card,
chip->pcm_vol[substream->number].kctl, 1);
}
}
#ifndef CHIP_AU8810
else {
/* if (stream != NULL)
vortex_wt_allocroute(chip, substream->number, 0); */
vortex_wt_allocroute(chip, substream->number,
params_channels(hw_params));
stream = substream->runtime->private_data =
&chip->dma_wt[substream->number];
stream->dma = substream->number;
stream->substream = substream;
vortex_wtdma_setbuffers(chip, substream->number,
params_period_bytes(hw_params),
params_periods(hw_params));
}
#endif
spin_unlock_irq(&chip->lock);
return 0;
}
