padvar.h revision 1.3 
1/* $NetBSD: padvar.h,v 1.3 2008/09/04 10:42:55 christos Exp $ */
2
3/*-
4 * Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef _SYS_DEV_PAD_PADVAR_H
30#define _SYS_DEV_PAD_PADVAR_H
31
32typedef struct pad_softc {
33	device_t	sc_dev;
34
35	int		sc_open;
36	struct audio_encoding_set *sc_encodings;
37	void		(*sc_intr)(void *);
38	void		*sc_intrarg;
39
40	kcondvar_t	sc_condvar;
41	kmutex_t	sc_mutex;
42
43	struct audio_softc *sc_audiodev;
44	int		sc_blksize;
45
46#define PAD_BLKSIZE	1024
47#define PAD_BUFSIZE	65536
48	uint8_t		sc_audiobuf[PAD_BUFSIZE];
49	uint32_t	sc_buflen;
50	uint32_t	sc_rpos, sc_wpos;
51
52	u_int		sc_swvol;
53} pad_softc_t;
54
55#endif /* !_SYS_DEV_PAD_PADVAR_H */
56