/* * 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 { 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; } /* * is realtime event? */ static inline int snd_seq_oss_timer_is_realtime(struct seq_oss_timer *timer) { return timer->realtime; } #endif