1/*	$NetBSD: auccvar.h,v 1.4.16.1 2005/01/17 19:29:12 skrll Exp $	*/
2/*
3 * Copyright (c) 1991-1993 Regents of the University of California.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *	This product includes software developed by the Computer Systems
17 *	Engineering Group at Lawrence Berkeley Laboratory.
18 * 4. Neither the name of the University nor of the Laboratory may be used
19 *    to endorse or promote products derived from this software without
20 *    specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35
36#ifndef _AUCCVAR_H_
37#define _AUCCVAR_H_
38
39#define AUDIO_BUF_SIZE 8192
40
41/* per channel data */
42typedef struct aucc_data {
43	u_int	nd_freq;	/* frequency */
44	u_int	nd_per;		/* period = clock/freq */
45	u_int	nd_volume;	/* 0..63 */
46	u_int	nd_busy;	/* 1, if channel is busy */
47	u_short	*nd_dma;	/* pointer to dma buffer */
48	u_int	nd_dmalength;	/* length of dma data */
49	int	nd_mask;	/* mask of active channels,
50				   together with this one */
51	void    (*nd_intr)(void *); /* interrupt routine */
52	void   *nd_intrdata;	/* interrupt data */
53	int	nd_doublebuf;	/* double buffering */
54} aucc_data_t;
55
56
57/* mixer sets */
58#define AUCC_CHANNELS 0
59
60/* mixer values */
61#define AUCC_VOLUME 1
62#define AUCC_OUTPUT_CLASS 2
63
64#endif /* _AUCCVAR_H_ */
65