| /* |
| * 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_sysex(struct seq_oss_readq *q, int dev, |
| struct snd_seq_event *ev); |
| 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 |