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seq_oss_timer.h
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1 /*
2  * OSS compatible sequencer driver
3  * timer handling routines
4  *
5  * Copyright (C) 1998,99 Takashi Iwai <[email protected]>
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  */
30 struct seq_oss_timer {
33  int realtime;
34  int running;
35  int tempo, ppq; /* ALSA queue */
37 };
38 
39 
42 
47 #define snd_seq_oss_timer_reset snd_seq_oss_timer_start
48 
49 int snd_seq_oss_timer_ioctl(struct seq_oss_timer *timer, unsigned int cmd, int __user *arg);
50 
51 /*
52  * get current processed time
53  */
54 static inline abstime_t
55 snd_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  */
64 static inline int
65 snd_seq_oss_timer_is_realtime(struct seq_oss_timer *timer)
66 {
67  return timer->realtime;
68 }
69 
70 #endif