1/*-
2 * Copyright (c) 2007 Ariff Abdullah <ariff@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/10.2/sys/dev/sound/unit.h 170159 2007-05-31 18:35:24Z ariff $
27 */
28
29#ifndef _SND_UNIT_H_
30#define _SND_UNIT_H_
31
32#define SND_UNIT_UMIN	16
33#define SND_UNIT_UMAX	2048
34
35int snd_max_u(void);
36int snd_max_d(void);
37int snd_max_c(void);
38int snd_unit2u(int);
39int snd_unit2d(int);
40int snd_unit2c(int);
41int snd_u2unit(int);
42int snd_d2unit(int);
43int snd_c2unit(int);
44int snd_mkunit(int, int, int);
45
46void snd_unit_init(void);
47
48#define SND_U_MASK	(snd_u2unit(snd_max_u()))
49#define SND_D_MASK	(snd_d2unit(snd_max_d()))
50#define SND_C_MASK	(snd_c2unit(snd_max_c()))
51
52#endif /* !_SND_UNIT_H_ */
53