| 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 | #endif |
|---|
| 48 | |
|---|
