1 /* $NetBSD: cg4reg.h,v 1.7 2005/12/11 12:19:20 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)cgthreereg.h 8.2 (Berkeley) 10/30/93 41 */ 42 43 /* 44 * Size that can be mapped (user-level mmap). 45 */ 46 #define CG4_OVERLAY_SIZE 0x20000 /* size of overlay plane */ 47 #define CG4_ENABLE_SIZE 0x20000 /* size of enable plane */ 48 #define CG4_PIXMAP_SIZE 0x100000 /* size of frame buffer */ 49 50 /* number of colormap entries */ 51 #define CG4_CMAP_ENTRIES 256 52 53 /* 54 * There are two kinds of cg4 hardware: 55 * "Type A" has a AMD DACs (Digital-to-Analog Converters) 56 * "Type B" has a Brooktree DACs. H/W addresses differ too. 57 */ 58 59 /* 60 * Memory layout of the Type A hardware (OBMEM) 61 */ 62 #define CG4A_OFF_ENABLE 0 63 #define CG4A_OFF_PIXMAP 0x400000 64 #define CG4A_OFF_OVERLAY 0xC00000 65 #define CG4A_OBIO_CMAP 0x0E0000 /* OBIO space! */ 66 67 /* colormap/status register structure */ 68 struct amd_regs { 69 u_char r[CG4_CMAP_ENTRIES]; 70 u_char g[CG4_CMAP_ENTRIES]; 71 u_char b[CG4_CMAP_ENTRIES]; 72 u_char status; 73 #define CG4A_STATUS_FIRSTHALF 0x80 74 #define CG4A_STATUS_TOOLATE 0x40 75 }; 76 77 78 /* 79 * Memory layout of the Type B hardware (OBMEM) 80 * P4 appears on the Sun3/60 at 0xFF300000, so 81 * define things relative to that. 82 */ 83 #define CG4B_OFF_CMAP (-0x100000) 84 #define CG4B_OFF_OVERLAY 0x100000 85 #define CG4B_OFF_ENABLE 0x300000 86 #define CG4B_OFF_PIXMAP 0x500000 87 88