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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/sound/pcm_oss.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/sound/pcm_oss.h')
-rw-r--r-- | include/sound/pcm_oss.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/include/sound/pcm_oss.h b/include/sound/pcm_oss.h new file mode 100644 index 000000000000..518728536bc6 --- /dev/null +++ b/include/sound/pcm_oss.h @@ -0,0 +1,87 @@ +#ifndef __SOUND_PCM_OSS_H +#define __SOUND_PCM_OSS_H + +/* + * Digital Audio (PCM) - OSS compatibility abstract layer + * Copyright (c) by Jaroslav Kysela <perex@suse.cz> + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +typedef struct _snd_pcm_plugin snd_pcm_plugin_t; +typedef struct _snd_pcm_oss_setup snd_pcm_oss_setup_t; + +struct _snd_pcm_oss_setup { + char *task_name; + unsigned int disable:1, + direct:1, + block:1, + nonblock:1, + partialfrag:1, + nosilence:1; + unsigned int periods; + unsigned int period_size; + snd_pcm_oss_setup_t *next; +}; + +typedef struct _snd_pcm_oss_runtime { + unsigned params: 1, /* format/parameter change */ + prepare: 1, /* need to prepare the operation */ + trigger: 1, /* trigger flag */ + sync_trigger: 1; /* sync trigger flag */ + int rate; /* requested rate */ + int format; /* requested OSS format */ + unsigned int channels; /* requested channels */ + unsigned int fragshift; + unsigned int maxfrags; + unsigned int subdivision; /* requested subdivision */ + size_t period_bytes; /* requested period size */ + size_t period_frames; /* period frames for poll */ + size_t period_ptr; /* actual write pointer to period */ + unsigned int periods; + size_t buffer_bytes; /* requested buffer size */ + size_t bytes; /* total # bytes processed */ + size_t mmap_bytes; + char *buffer; /* vmallocated period */ + size_t buffer_used; /* used length from period buffer */ + snd_pcm_plugin_t *plugin_first; + snd_pcm_plugin_t *plugin_last; + unsigned int prev_hw_ptr_interrupt; +} snd_pcm_oss_runtime_t; + +typedef struct _snd_pcm_oss_file { + snd_pcm_substream_t *streams[2]; +} snd_pcm_oss_file_t; + +typedef struct _snd_pcm_oss_substream { + unsigned oss: 1; /* oss mode */ + snd_pcm_oss_setup_t *setup; /* active setup */ + snd_pcm_oss_file_t *file; +} snd_pcm_oss_substream_t; + +typedef struct _snd_pcm_oss_stream { + snd_pcm_oss_setup_t *setup_list; /* setup list */ + struct semaphore setup_mutex; + snd_info_entry_t *proc_entry; +} snd_pcm_oss_stream_t; + +typedef struct _snd_pcm_oss { + int reg; + unsigned int reg_mask; +} snd_pcm_oss_t; + +#endif /* __SOUND_PCM_OSS_H */ |