seq_oss_timer.h

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * OSS compatible sequencer driver
 4 * timer handling routines
 5 *
 6 * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
 7 */
 8
 9#ifndef __SEQ_OSS_TIMER_H
10#define __SEQ_OSS_TIMER_H
11
12#include "seq_oss_device.h"
13
14/*
15 * timer information definition
16 */
17struct seq_oss_timer {
18	struct seq_oss_devinfo *dp;
19	reltime_t cur_tick;
20	int realtime;
21	int running;
22	int tempo, ppq;	/* ALSA queue */
23	int oss_tempo, oss_timebase;
24};	
25
26
27struct seq_oss_timer *snd_seq_oss_timer_new(struct seq_oss_devinfo *dp);
28void snd_seq_oss_timer_delete(struct seq_oss_timer *dp);
29
30int snd_seq_oss_timer_start(struct seq_oss_timer *timer);
31int snd_seq_oss_timer_stop(struct seq_oss_timer *timer);
32int snd_seq_oss_timer_continue(struct seq_oss_timer *timer);
33int snd_seq_oss_timer_tempo(struct seq_oss_timer *timer, int value);
34#define snd_seq_oss_timer_reset  snd_seq_oss_timer_start
35
36int snd_seq_oss_timer_ioctl(struct seq_oss_timer *timer, unsigned int cmd, int __user *arg);
37
38/*
39 * get current processed time
40 */
41static inline abstime_t
42snd_seq_oss_timer_cur_tick(struct seq_oss_timer *timer)
43{
44	return timer->cur_tick;
45}
46
47#endif