opt.h revision 1.7 
1/*	$OpenBSD: opt.h,v 1.7 2021/11/01 14:43:25 ratchov Exp $	*/
2/*
3 * Copyright (c) 2008-2012 Alexandre Ratchov <alex@caoua.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17#ifndef OPT_H
18#define OPT_H
19
20#define OPT_NMAX		16
21
22struct dev;
23
24struct opt {
25	struct opt *next;
26	struct dev *dev, *alt_first;
27	struct midi *midi;
28	struct mtc *mtc;	/* if set, MMC-controlled MTC source */
29
30	int num;
31#define OPT_NAMEMAX 11
32	char name[OPT_NAMEMAX + 1];
33	int maxweight;		/* max dynamic range for clients */
34	int pmin, pmax;		/* play channels */
35	int rmin, rmax;		/* recording channels */
36	int dup;		/* true if join/expand enabled */
37	int mode;		/* bitmap of MODE_XXX */
38	int refcnt;
39};
40
41extern struct opt *opt_list;
42
43struct opt *opt_new(struct dev *, char *, int, int, int, int,
44    int, int, int, unsigned int);
45void opt_del(struct opt *);
46struct opt *opt_byname(char *);
47struct opt *opt_bynum(int);
48void opt_init(struct opt *);
49void opt_done(struct opt *);
50void opt_setdev(struct opt *, struct dev *);
51struct dev *opt_ref(struct opt *);
52void opt_unref(struct opt *);
53
54#endif /* !defined(OPT_H) */
55