1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * OSS compatible sequencer driver |
4 | * write priority queue |
5 | * |
6 | * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de> |
7 | */ |
8 | |
9 | #ifndef __SEQ_OSS_WRITEQ_H |
10 | #define __SEQ_OSS_WRITEQ_H |
11 | |
12 | #include "seq_oss_device.h" |
13 | |
14 | |
15 | struct seq_oss_writeq { |
16 | struct seq_oss_devinfo *dp; |
17 | int maxlen; |
18 | abstime_t sync_time; |
19 | int sync_event_put; |
20 | wait_queue_head_t sync_sleep; |
21 | spinlock_t sync_lock; |
22 | }; |
23 | |
24 | |
25 | /* |
26 | * seq_oss_writeq.c |
27 | */ |
28 | struct seq_oss_writeq *snd_seq_oss_writeq_new(struct seq_oss_devinfo *dp, int maxlen); |
29 | void snd_seq_oss_writeq_delete(struct seq_oss_writeq *q); |
30 | void snd_seq_oss_writeq_clear(struct seq_oss_writeq *q); |
31 | int snd_seq_oss_writeq_sync(struct seq_oss_writeq *q); |
32 | void snd_seq_oss_writeq_wakeup(struct seq_oss_writeq *q, abstime_t time); |
33 | int snd_seq_oss_writeq_get_free_size(struct seq_oss_writeq *q); |
34 | void snd_seq_oss_writeq_set_output(struct seq_oss_writeq *q, int size); |
35 | |
36 | |
37 | #endif |
38 | |