1 /* $OpenBSD: ics2101reg.h,v 1.2 1996/03/05 08:28:07 niklas Exp $ */
2 /* $NetBSD: ics2101reg.h,v 1.3 1996/02/05 02:18:52 jtc Exp $ */
3
4 /*-
5 * Copyright (c) 1996 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Ken Hornstein and John Kohl.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 /*
41 * Register defs for Integrated Circuit Systems, Inc. ICS-2101 mixer
42 * chip, used on Gravis UltraSound cards.
43 *
44 * Block diagram:
45 * port #
46 * 0 +----+
47 * Mic in (Right/Left) -->--->---| |
48 * 1 | | amp --->---- amp out
49 * Line in (Right/Left) -->--->---| | |
50 * 2 | | |
51 * CD in (Right/Left) -->--->---| |--->---+---+----->---- line out
52 * 3 | | |
53 * GF1 Out (Right/Left) -->--->---| | |
54 * 4 | | |
55 * Unused (Right/Left) -->--->---| | |
56 * +----+ v
57 * ICS 2101 |
58 * |
59 * To GF1 Sample Input ---<---------------+
60 *
61 * Master output volume: mixer channel #5
62 */
63
64 /*
65 * ICS Mixer registers
66 */
67
68 #define ICSMIX_CTRL_LEFT 0x00 /* Control left channel */
69 #define ICSMIX_CTRL_RIGHT 0x01 /* Control right channel */
70 #define ICSMIX_ATTN_LEFT 0x02 /* Attenuate left channel */
71 #define ICSMIX_ATTN_RIGHT 0x03 /* Attenutate right channel */
72 #define ICSMIX_PAEN 0x04 /* Panning control */
73 #define ICSMIX_CHAN_0 0 /* Values for mixer channels */
74 #define ICSMIX_CHAN_1 1
75 #define ICSMIX_CHAN_2 2
76 #define ICSMIX_CHAN_3 3
77 #define ICSMIX_CHAN_4 4
78 #define ICSMIX_CHAN_5 5
79
80 #define ICSMIX_MIN_ATTN 0x7f
81 #define ICSMIX_MAX_ATTN 0x00
82 /*
83 * The ICS mixer is write-only--it cannot be queried for current settings.
84 * Drivers must keep track of current values themselves.
85 */