xref: /netbsd/sys/dev/isa/ics2101var.h (revision bf9ec67e)
1 /* $NetBSD: ics2101var.h,v 1.5 1997/10/09 07:57:24 jtc Exp $ */
2 
3 /*-
4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Ken Hornstein and John Kohl.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *	  Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #define ICSMIX_LEFT		0		/* Value for left channel */
40 #define ICSMIX_RIGHT		1		/* Value for right channel */
41 
42 struct ics2101_softc {
43 	bus_space_tag_t sc_iot;		/* tag */
44 	bus_space_handle_t sc_selio_ioh;
45 	bus_space_handle_t sc_dataio_ioh;
46 	u_short sc_selio;		/* select I/O address */
47 	u_short sc_dataio;		/* data I/O address */
48 	int sc_flags;			/* Various flags */
49 #define ICS_FLIP	0x01		/* flip channels */
50 	u_char sc_setting[ICSMIX_CHAN_5+1][2]; /* current settings */
51 	u_char sc_mute[ICSMIX_CHAN_5+1][2];/* muted? */
52 };
53 
54 void ics2101_mix_attenuate __P((struct ics2101_softc *, u_int, u_int, u_int));
55 void ics2101_mix_mute __P((struct ics2101_softc *, u_int, u_int, u_int));
56