1/* 2 * OSS compatible sequencer driver 3 * write priority queue 4 * 5 * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 22#ifndef __SEQ_OSS_WRITEQ_H 23#define __SEQ_OSS_WRITEQ_H 24 25#include "seq_oss_device.h" 26 27 28struct seq_oss_writeq { 29 struct seq_oss_devinfo *dp; 30 int maxlen; 31 abstime_t sync_time; 32 int sync_event_put; 33 wait_queue_head_t sync_sleep; 34 spinlock_t sync_lock; 35}; 36 37 38/* 39 * seq_oss_writeq.c 40 */ 41struct seq_oss_writeq *snd_seq_oss_writeq_new(struct seq_oss_devinfo *dp, int maxlen); 42void snd_seq_oss_writeq_delete(struct seq_oss_writeq *q); 43void snd_seq_oss_writeq_clear(struct seq_oss_writeq *q); 44int snd_seq_oss_writeq_sync(struct seq_oss_writeq *q); 45void snd_seq_oss_writeq_wakeup(struct seq_oss_writeq *q, abstime_t time); 46int snd_seq_oss_writeq_get_free_size(struct seq_oss_writeq *q); 47void snd_seq_oss_writeq_set_output(struct seq_oss_writeq *q, int size); 48 49 50#endif 51