1 /* $NetBSD: ics2101reg.h,v 1.7 2008/04/28 20:23:50 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Register defs for Integrated Circuit Systems, Inc. ICS-2101 mixer 34 * chip, used on Gravis UltraSound cards. 35 * 36 * Block diagram: 37 * port # 38 * 0 +----+ 39 * Mic in (Right/Left) -->--->---| | 40 * 1 | | amp --->---- amp out 41 * Line in (Right/Left) -->--->---| | | 42 * 2 | | | 43 * CD in (Right/Left) -->--->---| |--->---+---+----->---- line out 44 * 3 | | | 45 * GF1 Out (Right/Left) -->--->---| | | 46 * 4 | | | 47 * Unused (Right/Left) -->--->---| | | 48 * +----+ v 49 * ICS 2101 | 50 * | 51 * To GF1 Sample Input ---<---------------+ 52 * 53 * Master output volume: mixer channel #5 54 */ 55 56 /* 57 * ICS Mixer registers 58 */ 59 60 #define ICSMIX_CTRL_LEFT 0x00 /* Control left channel */ 61 #define ICSMIX_CTRL_RIGHT 0x01 /* Control right channel */ 62 #define ICSMIX_ATTN_LEFT 0x02 /* Attenuate left channel */ 63 #define ICSMIX_ATTN_RIGHT 0x03 /* Attenutate right channel */ 64 #define ICSMIX_PAEN 0x04 /* Panning control */ 65 #define ICSMIX_CHAN_0 0 /* Values for mixer channels */ 66 #define ICSMIX_CHAN_1 1 67 #define ICSMIX_CHAN_2 2 68 #define ICSMIX_CHAN_3 3 69 #define ICSMIX_CHAN_4 4 70 #define ICSMIX_CHAN_5 5 71 72 #define ICSMIX_MIN_ATTN 0x7f 73 #define ICSMIX_MAX_ATTN 0x00 74 /* 75 * The ICS mixer is write-only--it cannot be queried for current settings. 76 * Drivers must keep track of current values themselves. 77 */ 78