1 /* $OpenBSD: ics2101reg.h,v 1.4 2024/09/01 03:08:56 jsg 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Register defs for Integrated Circuit Systems, Inc. ICS-2101 mixer 35 * chip, used on Gravis UltraSound cards. 36 * 37 * Block diagram: 38 * port # 39 * 0 +----+ 40 * Mic in (Right/Left) -->--->---| | 41 * 1 | | amp --->---- amp out 42 * Line in (Right/Left) -->--->---| | | 43 * 2 | | | 44 * CD in (Right/Left) -->--->---| |--->---+---+----->---- line out 45 * 3 | | | 46 * GF1 Out (Right/Left) -->--->---| | | 47 * 4 | | | 48 * Unused (Right/Left) -->--->---| | | 49 * +----+ v 50 * ICS 2101 | 51 * | 52 * To GF1 Sample Input ---<---------------+ 53 * 54 * Master output volume: mixer channel #5 55 */ 56 57 /* 58 * ICS Mixer registers 59 */ 60 61 #define ICSMIX_CTRL_LEFT 0x00 /* Control left channel */ 62 #define ICSMIX_CTRL_RIGHT 0x01 /* Control right channel */ 63 #define ICSMIX_ATTN_LEFT 0x02 /* Attenuate left channel */ 64 #define ICSMIX_ATTN_RIGHT 0x03 /* Attenuate right channel */ 65 #define ICSMIX_PAEN 0x04 /* Panning control */ 66 #define ICSMIX_CHAN_0 0 /* Values for mixer channels */ 67 #define ICSMIX_CHAN_1 1 68 #define ICSMIX_CHAN_2 2 69 #define ICSMIX_CHAN_3 3 70 #define ICSMIX_CHAN_4 4 71 #define ICSMIX_CHAN_5 5 72 73 #define ICSMIX_MIN_ATTN 0x7f 74 #define ICSMIX_MAX_ATTN 0x00 75 /* 76 * The ICS mixer is write-only--it cannot be queried for current settings. 77 * Drivers must keep track of current values themselves. 78 */ 79