1 /* $NetBSD: bwtworeg.h,v 1.3 2005/12/11 12:23:56 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 * @(#)bwtworeg.h 8.1 (Berkeley) 6/11/93 41 */ 42 43 /* 44 * bwtwo display registers. 45 * 46 * The registers start at offset 0x400000 and repeat every 32 bytes 47 * (presumably only the low order address lines are decoded). Video RAM 48 * starts at offset 0x800000. We use separate pointers to each so that 49 * the sparc addressing modes work well. 50 */ 51 struct bwtworeg { 52 struct fbcontrol bw_fbc; 53 }; 54 55 /* offsets */ 56 #define BWREG_ID 0 57 #define BWREG_REG 0x400000 58 #define BWREG_MEM 0x800000 59 60 /* same, but for gdb */ 61 struct bwtwo_all { 62 long ba_id; /* ID = 0xfe010104 on my IPC */ 63 char ba_xxx0[0x400000-4]; 64 struct fbcontrol ba_reg; /* control registers */ 65 char ba_xxx1[0x400000-32]; 66 char ba_ram[4096]; /* actually larger */ 67 }; 68