projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef __SOUND_PCM_OSS_H |
| 2 | #define __SOUND_PCM_OSS_H | |
| 3 | ||
| 4 | /* | |
| 5 | * Digital Audio (PCM) - OSS compatibility abstract layer | |
| c1017a4c | 6 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
| 1da177e4 LT |
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 | * | |
| 23 | */ | |
| 24 | ||
| 6ac77bc1 | 25 | struct snd_pcm_oss_setup { |
| 1da177e4 LT |
26 | char *task_name; |
| 27 | unsigned int disable:1, | |
| 28 | direct:1, | |
| 29 | block:1, | |
| 30 | nonblock:1, | |
| 31 | partialfrag:1, | |
| 10f69f9e TI |
32 | nosilence:1, |
| 33 | buggyptr:1; | |
| 1da177e4 LT |
34 | unsigned int periods; |
| 35 | unsigned int period_size; | |
| 6ac77bc1 | 36 | struct snd_pcm_oss_setup *next; |
| 1da177e4 LT |
37 | }; |
| 38 | ||
| 6ac77bc1 | 39 | struct snd_pcm_oss_runtime { |
| 1da177e4 LT |
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 */ | |
| e3a5d59a | 59 | struct mutex params_lock; |
| 9b22335e | 60 | atomic_t rw_ref; /* concurrent read/write accesses */ |
| 21a3479a | 61 | #ifdef CONFIG_SND_PCM_OSS_PLUGINS |
| 6ac77bc1 TI |
62 | struct snd_pcm_plugin *plugin_first; |
| 63 | struct snd_pcm_plugin *plugin_last; | |
| 21a3479a | 64 | #endif |
| f240406b | 65 | unsigned int prev_hw_ptr_period; |
| 6ac77bc1 | 66 | }; |
| 1da177e4 | 67 | |
| 6ac77bc1 TI |
68 | struct snd_pcm_oss_file { |
| 69 | struct snd_pcm_substream *streams[2]; | |
| 70 | }; | |
| 1da177e4 | 71 | |
| 6ac77bc1 | 72 | struct snd_pcm_oss_substream { |
| 1da177e4 | 73 | unsigned oss: 1; /* oss mode */ |
| 060d77b9 | 74 | struct snd_pcm_oss_setup setup; /* active setup */ |
| 6ac77bc1 | 75 | }; |
| 1da177e4 | 76 | |
| 6ac77bc1 TI |
77 | struct snd_pcm_oss_stream { |
| 78 | struct snd_pcm_oss_setup *setup_list; /* setup list */ | |
| 1a60d4c5 | 79 | struct mutex setup_mutex; |
| b7d90a35 | 80 | #ifdef CONFIG_SND_VERBOSE_PROCFS |
| 6ac77bc1 | 81 | struct snd_info_entry *proc_entry; |
| b7d90a35 | 82 | #endif |
| 6ac77bc1 | 83 | }; |
| 1da177e4 | 84 | |
| 6ac77bc1 | 85 | struct snd_pcm_oss { |
| 1da177e4 LT |
86 | int reg; |
| 87 | unsigned int reg_mask; | |
| 6ac77bc1 | 88 | }; |
| 1da177e4 LT |
89 | |
| 90 | #endif /* __SOUND_PCM_OSS_H */ |