diff options
Diffstat (limited to 'sound/core/seq/oss/seq_oss_timer.h')
| -rw-r--r-- | sound/core/seq/oss/seq_oss_timer.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/sound/core/seq/oss/seq_oss_timer.h b/sound/core/seq/oss/seq_oss_timer.h new file mode 100644 index 000000000..dee190b4e --- /dev/null +++ b/sound/core/seq/oss/seq_oss_timer.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * OSS compatible sequencer driver + * timer handling routines + * + * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de> + */ + +#ifndef __SEQ_OSS_TIMER_H +#define __SEQ_OSS_TIMER_H + +#include "seq_oss_device.h" + +/* + * timer information definition + */ +struct seq_oss_timer { + struct seq_oss_devinfo *dp; + reltime_t cur_tick; + int realtime; + int running; + int tempo, ppq; /* ALSA queue */ + int oss_tempo, oss_timebase; +}; + + +struct seq_oss_timer *snd_seq_oss_timer_new(struct seq_oss_devinfo *dp); +void snd_seq_oss_timer_delete(struct seq_oss_timer *dp); + +int snd_seq_oss_timer_start(struct seq_oss_timer *timer); +int snd_seq_oss_timer_stop(struct seq_oss_timer *timer); +int snd_seq_oss_timer_continue(struct seq_oss_timer *timer); +int snd_seq_oss_timer_tempo(struct seq_oss_timer *timer, int value); +#define snd_seq_oss_timer_reset snd_seq_oss_timer_start + +int snd_seq_oss_timer_ioctl(struct seq_oss_timer *timer, unsigned int cmd, int __user *arg); + +/* + * get current processed time + */ +static inline abstime_t +snd_seq_oss_timer_cur_tick(struct seq_oss_timer *timer) +{ + return timer->cur_tick; +} + +#endif |