/*
* process one timing event
* return 1 : event proceseed -- skip this event
* 0 : not a timer event -- enqueue this event
*/
int
snd_seq_oss_process_timer_event(struct seq_oss_timer *rec, union evrec *ev)
{
abstime_t parm = ev->t.time;
if (ev->t.code == EV_TIMING) {
switch (ev->t.cmd) {
case TMR_WAIT_REL:
parm += rec->cur_tick;
rec->realtime = 0;
/* continue to next */
case TMR_WAIT_ABS:
if (parm == 0) {
rec->realtime = 1;
} else if (parm >= rec->cur_tick) {
rec->realtime = 0;
rec->cur_tick = parm;
}
return 1; /* skip this event */
case TMR_START:
snd_seq_oss_timer_start(rec);
return 1;
}
} else if (ev->s.code == SEQ_WAIT) {
/* time = from 1 to 3 bytes */
parm = (ev->echo >> 8) & 0xffffff;
if (parm > rec->cur_tick) {
/* set next event time */
rec->cur_tick = parm;
rec->realtime = 0;
}
return 1;
}
int
snd_seq_oss_process_timer_event(struct seq_oss_timer *rec, union evrec *ev)
{
abstime_t parm = ev->t.time;
if (ev->t.code == EV_TIMING) {
switch (ev->t.cmd) {
case TMR_WAIT_REL:
parm += rec->cur_tick;
rec->realtime = 0;
case TMR_WAIT_ABS:
if (parm == 0) {
rec->realtime = 1;
} else if (parm >= rec->cur_tick) {
rec->realtime = 0;
rec->cur_tick = parm;
}
return 1;
case TMR_START:
snd_seq_oss_timer_start(rec);
return 1;
}
} else if (ev->s.code == SEQ_WAIT) {
parm = (ev->echo >> 8) & 0xffffff;
if (parm > rec->cur_tick) {
rec->cur_tick = parm;
rec->realtime = 0;
}
return 1;
}
/*
* decode event and send MIDI bytes to read queue
*/
static int
send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, struct seq_oss_midi *mdev)
{
char msg[32];
int len;
snd_seq_oss_readq_put_timestamp(dp->readq, ev->time.tick, dp->seq_mode);
if (!dp->timer->running)
len = snd_seq_oss_timer_start(dp->timer);
if (ev->type == SNDRV_SEQ_EVENT_SYSEX) {
snd_seq_oss_readq_sysex(dp->readq, mdev->seq_device, ev);
} else {
len = snd_midi_event_decode(mdev->coder, msg, sizeof(msg), ev);
if (len > 0)
snd_seq_oss_readq_puts(dp->readq, mdev->seq_device, msg, len);
}
return 0;
}
