/*
* process a received queue-control event.
* this function is exported for seq_sync.c.
*/
static void snd_seq_queue_process_event(struct snd_seq_queue *q,
struct snd_seq_event *ev,
int atomic, int hop)
{
switch (ev->type) {
case SNDRV_SEQ_EVENT_START:
snd_seq_prioq_leave(q->tickq, ev->source.client, 1);
snd_seq_prioq_leave(q->timeq, ev->source.client, 1);
if (! snd_seq_timer_start(q->timer))
queue_broadcast_event(q, ev, atomic, hop);
break;
case SNDRV_SEQ_EVENT_CONTINUE:
if (! snd_seq_timer_continue(q->timer))
queue_broadcast_event(q, ev, atomic, hop);
break;
case SNDRV_SEQ_EVENT_STOP:
snd_seq_timer_stop(q->timer);
queue_broadcast_event(q, ev, atomic, hop);
break;
case SNDRV_SEQ_EVENT_TEMPO:
snd_seq_timer_set_tempo(q->timer, ev->data.queue.param.value);
queue_broadcast_event(q, ev, atomic, hop);
break;
case SNDRV_SEQ_EVENT_SETPOS_TICK:
if (snd_seq_timer_set_position_tick(q->timer, ev->data.queue.param.time.tick) == 0) {
queue_broadcast_event(q, ev, atomic, hop);
}
break;
case SNDRV_SEQ_EVENT_SETPOS_TIME:
if (snd_seq_timer_set_position_time(q->timer, ev->data.queue.param.time.time) == 0) {
queue_broadcast_event(q, ev, atomic, hop);
}
break;
case SNDRV_SEQ_EVENT_QUEUE_SKEW:
if (snd_seq_timer_set_skew(q->timer,
ev->data.queue.param.skew.value,
ev->data.queue.param.skew.base) == 0) {
queue_broadcast_event(q, ev, atomic, hop);
}
break;
}
}
/* change queue tempo and ppq */
int snd_seq_queue_timer_set_tempo(int queueid, int client, snd_seq_queue_tempo_t *info)
{
queue_t *q = queueptr(queueid);
int result;
if (q == NULL)
return -EINVAL;
if (! queue_access_lock(q, client)) {
queuefree(q);
return -EPERM;
}
result = snd_seq_timer_set_tempo(q->timer, info->tempo);
if (result >= 0)
result = snd_seq_timer_set_ppq(q->timer, info->ppq);
if (result >= 0 && info->skew_base > 0)
result = snd_seq_timer_set_skew(q->timer, info->skew_value, info->skew_base);
queue_access_unlock(q);
queuefree(q);
return result;
}
