1/*
2 * OSS compatible sequencer driver
3 * timer handling routines
4 *
5 * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
20 */
21
22#ifndef __SEQ_OSS_TIMER_H
23#define __SEQ_OSS_TIMER_H
24
25#include "seq_oss_device.h"
26
27/*
28 * timer information definition
29 */
30struct seq_oss_timer {
31	struct seq_oss_devinfo *dp;
32	reltime_t cur_tick;
33	int realtime;
34	int running;
35	int tempo, ppq;	/* ALSA queue */
36	int oss_tempo, oss_timebase;
37};
38
39
40struct seq_oss_timer *snd_seq_oss_timer_new(struct seq_oss_devinfo *dp);
41void snd_seq_oss_timer_delete(struct seq_oss_timer *dp);
42
43int snd_seq_oss_timer_start(struct seq_oss_timer *timer);
44int snd_seq_oss_timer_stop(struct seq_oss_timer *timer);
45int snd_seq_oss_timer_continue(struct seq_oss_timer *timer);
46int snd_seq_oss_timer_tempo(struct seq_oss_timer *timer, int value);
47#define snd_seq_oss_timer_reset  snd_seq_oss_timer_start
48
49int snd_seq_oss_timer_ioctl(struct seq_oss_timer *timer, unsigned int cmd, int __user *arg);
50
51/*
52 * get current processed time
53 */
54static inline abstime_t
55snd_seq_oss_timer_cur_tick(struct seq_oss_timer *timer)
56{
57	return timer->cur_tick;
58}
59
60
61/*
62 * is realtime event?
63 */
64static inline int
65snd_seq_oss_timer_is_realtime(struct seq_oss_timer *timer)
66{
67	return timer->realtime;
68}
69
70#endif
71