1 /* SPDX-License-Identifier: GPL-2.0-or-later * <<
2 #ifndef __SOUND_PCM_OSS_H 1 #ifndef __SOUND_PCM_OSS_H
3 #define __SOUND_PCM_OSS_H 2 #define __SOUND_PCM_OSS_H
4 3
5 /* 4 /*
6 * Digital Audio (PCM) - OSS compatibility ab 5 * Digital Audio (PCM) - OSS compatibility abstract layer
7 * Copyright (c) by Jaroslav Kysela <perex@pe !! 6 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
>> 7 *
>> 8 *
>> 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.
>> 13 *
>> 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.
>> 18 *
>> 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
>> 22 *
8 */ 23 */
9 24
10 struct snd_pcm_oss_setup { !! 25 typedef struct _snd_pcm_plugin snd_pcm_plugin_t;
>> 26 typedef struct _snd_pcm_oss_setup snd_pcm_oss_setup_t;
>> 27
>> 28 struct _snd_pcm_oss_setup {
11 char *task_name; 29 char *task_name;
12 unsigned int disable:1, 30 unsigned int disable:1,
13 direct:1, 31 direct:1,
14 block:1, 32 block:1,
15 nonblock:1, 33 nonblock:1,
16 partialfrag:1, !! 34 wholefrag:1,
17 nosilence:1, !! 35 nosilence:1;
18 buggyptr:1; <<
19 unsigned int periods; 36 unsigned int periods;
20 unsigned int period_size; 37 unsigned int period_size;
21 struct snd_pcm_oss_setup *next; !! 38 snd_pcm_oss_setup_t *next;
22 }; 39 };
23 40
24 struct snd_pcm_oss_runtime { !! 41 typedef struct _snd_pcm_oss_runtime {
25 unsigned params: 1, !! 42 int params: 1, /* format/parameter change */
26 prepare: 1, !! 43 prepare: 1, /* need to prepare the operation */
27 trigger: 1, !! 44 trigger: 1, /* trigger flag */
28 sync_trigger: 1; !! 45 sync_trigger: 1; /* sync trigger flag */
29 int rate; 46 int rate; /* requested rate */
30 int format; 47 int format; /* requested OSS format */
31 unsigned int channels; 48 unsigned int channels; /* requested channels */
32 unsigned int fragshift; 49 unsigned int fragshift;
33 unsigned int maxfrags; 50 unsigned int maxfrags;
34 unsigned int subdivision; 51 unsigned int subdivision; /* requested subdivision */
35 size_t period_bytes; 52 size_t period_bytes; /* requested period size */
36 size_t period_frames; <<
37 size_t period_ptr; 53 size_t period_ptr; /* actual write pointer to period */
38 unsigned int periods; 54 unsigned int periods;
39 size_t buffer_bytes; 55 size_t buffer_bytes; /* requested buffer size */
40 size_t bytes; 56 size_t bytes; /* total # bytes processed */
41 size_t mmap_bytes; 57 size_t mmap_bytes;
42 char *buffer; 58 char *buffer; /* vmallocated period */
43 size_t buffer_used; 59 size_t buffer_used; /* used length from period buffer */
44 struct mutex params_lock; !! 60 snd_pcm_plugin_t *plugin_first;
45 atomic_t rw_ref; /* con !! 61 snd_pcm_plugin_t *plugin_last;
46 #ifdef CONFIG_SND_PCM_OSS_PLUGINS !! 62 unsigned int prev_hw_ptr_interrupt;
47 struct snd_pcm_plugin *plugin_first; !! 63 } snd_pcm_oss_runtime_t;
48 struct snd_pcm_plugin *plugin_last; !! 64
49 #endif !! 65 typedef struct _snd_pcm_oss_file {
50 unsigned int prev_hw_ptr_period; !! 66 snd_pcm_substream_t *streams[2];
51 }; !! 67 } snd_pcm_oss_file_t;
>> 68
>> 69 typedef struct _snd_pcm_oss_substream {
>> 70 int oss: 1; /* oss mode */
>> 71 snd_pcm_oss_setup_t *setup; /* active setup */
>> 72 snd_pcm_oss_file_t *file;
>> 73 } snd_pcm_oss_substream_t;
>> 74
>> 75 typedef struct _snd_pcm_oss_stream {
>> 76 snd_pcm_oss_setup_t *setup_list; /* setup list */
>> 77 struct semaphore setup_mutex;
>> 78 snd_info_entry_t *proc_entry;
>> 79 } snd_pcm_oss_stream_t;
52 80
53 struct snd_pcm_oss_file { !! 81 typedef struct _snd_pcm_oss {
54 struct snd_pcm_substream *streams[2]; <<
55 }; <<
56 <<
57 struct snd_pcm_oss_substream { <<
58 unsigned oss: 1; <<
59 struct snd_pcm_oss_setup setup; <<
60 }; <<
61 <<
62 struct snd_pcm_oss_stream { <<
63 struct snd_pcm_oss_setup *setup_list; <<
64 struct mutex setup_mutex; <<
65 #ifdef CONFIG_SND_VERBOSE_PROCFS <<
66 struct snd_info_entry *proc_entry; <<
67 #endif <<
68 }; <<
69 <<
70 struct snd_pcm_oss { <<
71 int reg; 82 int reg;
72 unsigned int reg_mask; 83 unsigned int reg_mask;
73 }; !! 84 } snd_pcm_oss_t;
74 85
75 #endif /* __SOUND_PCM_OSS_H */ 86 #endif /* __SOUND_PCM_OSS_H */
76 87
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