projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 1da177e4 LT |
2 | #ifndef __SOUND_PCM_OSS_H |
| 3 | #define __SOUND_PCM_OSS_H | |
| 4 | ||
| 5 | /* | |
| 6 | * Digital Audio (PCM) - OSS compatibility abstract layer | |
| c1017a4c | 7 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
| 1da177e4 LT |
8 | */ |
| 9 | ||
| 6ac77bc1 | 10 | struct snd_pcm_oss_setup { |
| 1da177e4 LT |
11 | char *task_name; |
| 12 | unsigned int disable:1, | |
| 13 | direct:1, | |
| 14 | block:1, | |
| 15 | nonblock:1, | |
| 16 | partialfrag:1, | |
| 10f69f9e TI |
17 | nosilence:1, |
| 18 | buggyptr:1; | |
| 1da177e4 LT |
19 | unsigned int periods; |
| 20 | unsigned int period_size; | |
| 6ac77bc1 | 21 | struct snd_pcm_oss_setup *next; |
| 1da177e4 LT |
22 | }; |
| 23 | ||
| 6ac77bc1 | 24 | struct snd_pcm_oss_runtime { |
| 1da177e4 LT |
25 | unsigned params: 1, /* format/parameter change */ |
| 26 | prepare: 1, /* need to prepare the operation */ | |
| 27 | trigger: 1, /* trigger flag */ | |
| 28 | sync_trigger: 1; /* sync trigger flag */ | |
| 29 | int rate; /* requested rate */ | |
| 30 | int format; /* requested OSS format */ | |
| 31 | unsigned int channels; /* requested channels */ | |
| 32 | unsigned int fragshift; | |
| 33 | unsigned int maxfrags; | |
| 34 | unsigned int subdivision; /* requested subdivision */ | |
| 35 | size_t period_bytes; /* requested period size */ | |
| 36 | size_t period_frames; /* period frames for poll */ | |
| 37 | size_t period_ptr; /* actual write pointer to period */ | |
| 38 | unsigned int periods; | |
| 39 | size_t buffer_bytes; /* requested buffer size */ | |
| 40 | size_t bytes; /* total # bytes processed */ | |
| 41 | size_t mmap_bytes; | |
| 42 | char *buffer; /* vmallocated period */ | |
| 43 | size_t buffer_used; /* used length from period buffer */ | |
| e3a5d59a | 44 | struct mutex params_lock; |
| 40cab6e8 | 45 | atomic_t rw_ref; /* concurrent read/write accesses */ |
| 21a3479a | 46 | #ifdef CONFIG_SND_PCM_OSS_PLUGINS |
| 6ac77bc1 TI |
47 | struct snd_pcm_plugin *plugin_first; |
| 48 | struct snd_pcm_plugin *plugin_last; | |
| 21a3479a | 49 | #endif |
| f240406b | 50 | unsigned int prev_hw_ptr_period; |
| 6ac77bc1 | 51 | }; |
| 1da177e4 | 52 | |
| 6ac77bc1 TI |
53 | struct snd_pcm_oss_file { |
| 54 | struct snd_pcm_substream *streams[2]; | |
| 55 | }; | |
| 1da177e4 | 56 | |
| 6ac77bc1 | 57 | struct snd_pcm_oss_substream { |
| 1da177e4 | 58 | unsigned oss: 1; /* oss mode */ |
| 060d77b9 | 59 | struct snd_pcm_oss_setup setup; /* active setup */ |
| 6ac77bc1 | 60 | }; |
| 1da177e4 | 61 | |
| 6ac77bc1 TI |
62 | struct snd_pcm_oss_stream { |
| 63 | struct snd_pcm_oss_setup *setup_list; /* setup list */ | |
| 1a60d4c5 | 64 | struct mutex setup_mutex; |
| b7d90a35 | 65 | #ifdef CONFIG_SND_VERBOSE_PROCFS |
| 6ac77bc1 | 66 | struct snd_info_entry *proc_entry; |
| b7d90a35 | 67 | #endif |
| 6ac77bc1 | 68 | }; |
| 1da177e4 | 69 | |
| 6ac77bc1 | 70 | struct snd_pcm_oss { |
| 1da177e4 LT |
71 | int reg; |
| 72 | unsigned int reg_mask; | |
| 6ac77bc1 | 73 | }; |
| 1da177e4 LT |
74 | |
| 75 | #endif /* __SOUND_PCM_OSS_H */ |