1 /* $NetBSD: ics2101reg.h,v 1.4 1997/10/09 08:03:44 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 /*
40 * Register defs for Integrated Circuit Systems, Inc. ICS-2101 mixer
41 * chip, used on Gravis UltraSound cards.
42 *
43 * Block diagram:
44 * port #
45 * 0 +----+
46 * Mic in (Right/Left) -->--->---| |
47 * 1 | | amp --->---- amp out
48 * Line in (Right/Left) -->--->---| | |
49 * 2 | | |
50 * CD in (Right/Left) -->--->---| |--->---+---+----->---- line out
51 * 3 | | |
52 * GF1 Out (Right/Left) -->--->---| | |
53 * 4 | | |
54 * Unused (Right/Left) -->--->---| | |
55 * +----+ v
56 * ICS 2101 |
57 * |
58 * To GF1 Sample Input ---<---------------+
59 *
60 * Master output volume: mixer channel #5
61 */
62
63 /*
64 * ICS Mixer registers
65 */
66
67 #define ICSMIX_CTRL_LEFT 0x00 /* Control left channel */
68 #define ICSMIX_CTRL_RIGHT 0x01 /* Control right channel */
69 #define ICSMIX_ATTN_LEFT 0x02 /* Attenuate left channel */
70 #define ICSMIX_ATTN_RIGHT 0x03 /* Attenutate right channel */
71 #define ICSMIX_PAEN 0x04 /* Panning control */
72 #define ICSMIX_CHAN_0 0 /* Values for mixer channels */
73 #define ICSMIX_CHAN_1 1
74 #define ICSMIX_CHAN_2 2
75 #define ICSMIX_CHAN_3 3
76 #define ICSMIX_CHAN_4 4
77 #define ICSMIX_CHAN_5 5
78
79 #define ICSMIX_MIN_ATTN 0x7f
80 #define ICSMIX_MAX_ATTN 0x00
81 /*
82 * The ICS mixer is write-only--it cannot be queried for current settings.
83 * Drivers must keep track of current values themselves.
84 */
Cache object: fdbcce0af1d19db5d4fd0eb64d7d9cf5
|