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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/sound/pcm_oss.h
downloadlinux-linaro-stable-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-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.h87
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 */