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 */ 85