/*
* hw free callback
*/
static int snd_tm6000_hw_free(struct snd_pcm_substream *substream)
{
struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);
_tm6000_stop_audio_dma(chip);
return 0;
}
/*
* trigger callback
*/
static void audio_trigger(struct work_struct *work)
{
struct tm6000_core *core = container_of(work, struct tm6000_core,
wq_trigger);
struct snd_tm6000_card *chip = core->adev;
if (atomic_read(&core->stream_started)) {
dprintk(1, "starting capture");
_tm6000_start_audio_dma(chip);
} else {
dprintk(1, "stopping capture");
_tm6000_stop_audio_dma(chip);
}
}
/*
* trigger callback
*/
static int snd_tm6000_card_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);
int err;
spin_lock(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
err = _tm6000_start_audio_dma(chip);
break;
case SNDRV_PCM_TRIGGER_STOP:
err = _tm6000_stop_audio_dma(chip);
break;
default:
err = -EINVAL;
break;
}
spin_unlock(&chip->reg_lock);
return err;
}