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Release 4.12 include/sound/pcm_oss.h

Directory: include/sound
#ifndef __SOUND_PCM_OSS_H

#define __SOUND_PCM_OSS_H

/*
 *  Digital Audio (PCM) - OSS compatibility abstract layer
 *  Copyright (c) by Jaroslav Kysela <perex@perex.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
 *
 */


struct snd_pcm_oss_setup {
	
char *task_name;
	
unsigned int disable:1,
		     
direct:1,
		     
block:1,
		     
nonblock:1,
		     
partialfrag:1,
		     
nosilence:1,
		     
buggyptr:1;
	
unsigned int periods;
	
unsigned int period_size;
	
struct snd_pcm_oss_setup *next;
};


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 */
	
struct mutex params_lock;
#ifdef CONFIG_SND_PCM_OSS_PLUGINS
	
struct snd_pcm_plugin *plugin_first;
	
struct snd_pcm_plugin *plugin_last;
#endif
	
unsigned int prev_hw_ptr_period;
};


struct snd_pcm_oss_file {
	
struct snd_pcm_substream *streams[2];
};


struct snd_pcm_oss_substream {
	
unsigned oss: 1;			/* oss mode */
	
struct snd_pcm_oss_setup setup;		/* active setup */
};


struct snd_pcm_oss_stream {
	
struct snd_pcm_oss_setup *setup_list;	/* setup list */
	
struct mutex setup_mutex;
#ifdef CONFIG_SND_VERBOSE_PROCFS
	
struct snd_info_entry *proc_entry;
#endif
};


struct snd_pcm_oss {
	
int reg;
	
unsigned int reg_mask;
};

#endif /* __SOUND_PCM_OSS_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela19882.85%1062.50%
Takashi Iwai3815.90%425.00%
Linus Torvalds20.84%16.25%
Ingo Molnar10.42%16.25%
Total239100.00%16100.00%
Directory: include/sound
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