// overrun. Actual device can skip more, then this module stops the packet streaming.
#define IR_JUMBO_PAYLOAD_MAX_SKIP_CYCLES 5
-static void pcm_period_work(struct work_struct *work);
-
/**
* amdtp_stream_init - initialize an AMDTP stream structure
* @s: the AMDTP stream to initialize
s->flags = flags;
s->context = ERR_PTR(-1);
mutex_init(&s->mutex);
- INIT_WORK(&s->period_work, pcm_period_work);
s->packet_index = 0;
init_waitqueue_head(&s->ready_wait);
*/
void amdtp_stream_pcm_prepare(struct amdtp_stream *s)
{
- cancel_work_sync(&s->period_work);
s->pcm_buffer_pointer = 0;
s->pcm_period_pointer = 0;
}
}
}
-static void pcm_period_work(struct work_struct *work)
-{
- struct amdtp_stream *s = container_of(work, struct amdtp_stream,
- period_work);
- struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
-
- if (pcm)
- snd_pcm_period_elapsed(pcm);
-}
-
static int queue_packet(struct amdtp_stream *s, struct fw_iso_packet *params,
bool sched_irq)
{
return;
}
- cancel_work_sync(&s->period_work);
fw_iso_context_stop(s->context);
fw_iso_context_destroy(s->context);
s->context = ERR_PTR(-1);
/* For a PCM substream processing. */
struct snd_pcm_substream *pcm;
- struct work_struct period_work;
snd_pcm_uframes_t pcm_buffer_pointer;
unsigned int pcm_period_pointer;