[deliverable/linux.git] / include / sound / pcm_oss.h

#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
 *
 */

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 snd_pcm_plugin *plugin_first;
	struct snd_pcm_plugin *plugin_last;
	unsigned int prev_hw_ptr_interrupt;
};

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_file *file;
};

struct snd_pcm_oss_stream {
	struct snd_pcm_oss_setup *setup_list;	/* setup list */
        struct semaphore setup_mutex;
	struct snd_info_entry *proc_entry;
};

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

#endif /* __SOUND_PCM_OSS_H */
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
	6	* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
	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,
10f69f9e TI	33	buggyptr:1;
1da177e4 LT	34	unsigned int periods;
1da177e4 LT	35	unsigned int period_size;
6ac77bc1	36	struct snd_pcm_oss_setup *next;
1da177e4 LT	37	};
1da177e4 LT	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 */
6ac77bc1 TI	59	struct snd_pcm_plugin *plugin_first;
6ac77bc1 TI	60	struct snd_pcm_plugin *plugin_last;
1da177e4	61	unsigned int prev_hw_ptr_interrupt;
6ac77bc1	62	};
1da177e4	63
6ac77bc1 TI	64	struct snd_pcm_oss_file {
	65	struct snd_pcm_substream *streams[2];
	66	};
1da177e4	67
6ac77bc1	68	struct snd_pcm_oss_substream {
1da177e4	69	unsigned oss: 1; /* oss mode */
6ac77bc1 TI	70	struct snd_pcm_oss_setup setup; / active setup */
	71	struct snd_pcm_oss_file *file;
	72	};
1da177e4	73
6ac77bc1 TI	74	struct snd_pcm_oss_stream {
6ac77bc1 TI	75	struct snd_pcm_oss_setup setup_list; / setup list */
1da177e4	76	struct semaphore setup_mutex;
6ac77bc1 TI	77	struct snd_info_entry *proc_entry;
6ac77bc1 TI	78	};
1da177e4	79
6ac77bc1	80	struct snd_pcm_oss {
1da177e4 LT	81	int reg;
1da177e4 LT	82	unsigned int reg_mask;
6ac77bc1	83	};
1da177e4 LT	84
1da177e4 LT	85	#endif /* __SOUND_PCM_OSS_H */