diff options
Diffstat (limited to 'sound/core/seq/oss/seq_oss_timer.h')
-rw-r--r-- | sound/core/seq/oss/seq_oss_timer.h | 70 |
1 files changed, 70 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 00000000000..6e4dbd8504c --- /dev/null +++ b/sound/core/seq/oss/seq_oss_timer.h @@ -0,0 +1,70 @@ +/* + * OSS compatible sequencer driver + * timer handling routines + * + * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __SEQ_OSS_TIMER_H +#define __SEQ_OSS_TIMER_H + +#include "seq_oss_device.h" + +/* + * timer information definition + */ +struct seq_oss_timer_t { + seq_oss_devinfo_t *dp; + reltime_t cur_tick; + int realtime; + int running; + int tempo, ppq; /* ALSA queue */ + int oss_tempo, oss_timebase; +}; + + +seq_oss_timer_t *snd_seq_oss_timer_new(seq_oss_devinfo_t *dp); +void snd_seq_oss_timer_delete(seq_oss_timer_t *dp); + +int snd_seq_oss_timer_start(seq_oss_timer_t *timer); +int snd_seq_oss_timer_stop(seq_oss_timer_t *timer); +int snd_seq_oss_timer_continue(seq_oss_timer_t *timer); +int snd_seq_oss_timer_tempo(seq_oss_timer_t *timer, int value); +#define snd_seq_oss_timer_reset snd_seq_oss_timer_start + +int snd_seq_oss_timer_ioctl(seq_oss_timer_t *timer, unsigned int cmd, int __user *arg); + +/* + * get current processed time + */ +static inline abstime_t +snd_seq_oss_timer_cur_tick(seq_oss_timer_t *timer) +{ + return timer->cur_tick; +} + + +/* + * is realtime event? + */ +static inline int +snd_seq_oss_timer_is_realtime(seq_oss_timer_t *timer) +{ + return timer->realtime; +} + +#endif |