fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / sound / pcm_oss.h
blobcc4e226f35fd5b07a4c0aebbea8ea282aa1309b7
1 #ifndef __SOUND_PCM_OSS_H
2 #define __SOUND_PCM_OSS_H
4 /*
5 * Digital Audio (PCM) - OSS compatibility abstract layer
6 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 struct snd_pcm_oss_setup {
26 char *task_name;
27 unsigned int disable:1,
28 direct:1,
29 block:1,
30 nonblock:1,
31 partialfrag:1,
32 nosilence:1,
33 buggyptr:1;
34 unsigned int periods;
35 unsigned int period_size;
36 struct snd_pcm_oss_setup *next;
39 struct snd_pcm_oss_runtime {
40 unsigned params: 1, /* format/parameter change */
41 prepare: 1, /* need to prepare the operation */
42 trigger: 1, /* trigger flag */
43 sync_trigger: 1; /* sync trigger flag */
44 int rate; /* requested rate */
45 int format; /* requested OSS format */
46 unsigned int channels; /* requested channels */
47 unsigned int fragshift;
48 unsigned int maxfrags;
49 unsigned int subdivision; /* requested subdivision */
50 size_t period_bytes; /* requested period size */
51 size_t period_frames; /* period frames for poll */
52 size_t period_ptr; /* actual write pointer to period */
53 unsigned int periods;
54 size_t buffer_bytes; /* requested buffer size */
55 size_t bytes; /* total # bytes processed */
56 size_t mmap_bytes;
57 char *buffer; /* vmallocated period */
58 size_t buffer_used; /* used length from period buffer */
59 struct mutex params_lock;
60 #ifdef CONFIG_SND_PCM_OSS_PLUGINS
61 struct snd_pcm_plugin *plugin_first;
62 struct snd_pcm_plugin *plugin_last;
63 #endif
64 unsigned int prev_hw_ptr_interrupt;
67 struct snd_pcm_oss_file {
68 struct snd_pcm_substream *streams[2];
71 struct snd_pcm_oss_substream {
72 unsigned oss: 1; /* oss mode */
73 struct snd_pcm_oss_setup setup; /* active setup */
76 struct snd_pcm_oss_stream {
77 struct snd_pcm_oss_setup *setup_list; /* setup list */
78 struct mutex setup_mutex;
79 #ifdef CONFIG_SND_VERBOSE_PROCFS
80 struct snd_info_entry *proc_entry;
81 #endif
84 struct snd_pcm_oss {
85 int reg;
86 unsigned int reg_mask;
89 #endif /* __SOUND_PCM_OSS_H */