| /* | |
| * OSS compatible sequencer driver | |
| * read fifo queue | |
| * | |
| * 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_READQ_H | |
| #define __SEQ_OSS_READQ_H | |
| #include "seq_oss_device.h" | |
| /* | |
| * definition of read queue | |
| */ | |
| struct seq_oss_readq { | |
| union evrec *q; | |
| int qlen; | |
| int maxlen; | |
| int head, tail; | |
| unsigned long pre_event_timeout; | |
| unsigned long input_time; | |
| wait_queue_head_t midi_sleep; | |
| spinlock_t lock; | |
| }; | |
| struct seq_oss_readq *snd_seq_oss_readq_new(struct seq_oss_devinfo *dp, int maxlen); | |
| void snd_seq_oss_readq_delete(struct seq_oss_readq *q); | |
| void snd_seq_oss_readq_clear(struct seq_oss_readq *readq); | |
| unsigned int snd_seq_oss_readq_poll(struct seq_oss_readq *readq, struct file *file, poll_table *wait); | |
| int snd_seq_oss_readq_puts(struct seq_oss_readq *readq, int dev, unsigned char *data, int len); | |
| int snd_seq_oss_readq_put_event(struct seq_oss_readq *readq, union evrec *ev); | |
| int snd_seq_oss_readq_put_timestamp(struct seq_oss_readq *readq, unsigned long curt, int seq_mode); | |
| int snd_seq_oss_readq_pick(struct seq_oss_readq *q, union evrec *rec); | |
| void snd_seq_oss_readq_wait(struct seq_oss_readq *q); | |
| void snd_seq_oss_readq_free(struct seq_oss_readq *q); | |
| #define snd_seq_oss_readq_lock(q, flags) spin_lock_irqsave(&(q)->lock, flags) | |
| #define snd_seq_oss_readq_unlock(q, flags) spin_unlock_irqrestore(&(q)->lock, flags) | |
| #endif |