seq_oss_timer.h (1150B)
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