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 */ 17 struct 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 27 struct seq_oss_timer *snd_seq_oss_timer_new(struct seq_oss_devinfo *dp); 28 void snd_seq_oss_timer_delete(struct seq_oss_timer *dp); 29 30 int snd_seq_oss_timer_start(struct seq_oss_timer *timer); 31 int snd_seq_oss_timer_stop(struct seq_oss_timer *timer); 32 int snd_seq_oss_timer_continue(struct seq_oss_timer *timer); 33 int 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 36 int snd_seq_oss_timer_ioctl(struct seq_oss_timer *timer, unsigned int cmd, int __user *arg); 37 38 /* 39 * get current processed time 40 */ 41 static inline abstime_t 42 snd_seq_oss_timer_cur_tick(struct seq_oss_timer *timer) 43 { 44 return timer->cur_tick; 45 } 46 47 48 /* 49 * is realtime event? 50 */ 51 static inline int 52 snd_seq_oss_timer_is_realtime(struct seq_oss_timer *timer) 53 { 54 return timer->realtime; 55 } 56 57 #endif 58