/* $NetBSD: cg4reg.h,v 1.7 2005/12/11 12:19:20 christos Exp $ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)cgthreereg.h 8.2 (Berkeley) 10/30/93 */ /* * Size that can be mapped (user-level mmap). */ #define CG4_OVERLAY_SIZE 0x20000 /* size of overlay plane */ #define CG4_ENABLE_SIZE 0x20000 /* size of enable plane */ #define CG4_PIXMAP_SIZE 0x100000 /* size of frame buffer */ /* number of colormap entries */ #define CG4_CMAP_ENTRIES 256 /* * There are two kinds of cg4 hardware: * "Type A" has a AMD DACs (Digital-to-Analog Converters) * "Type B" has a Brooktree DACs. H/W addresses differ too. */ /* * Memory layout of the Type A hardware (OBMEM) */ #define CG4A_OFF_ENABLE 0 #define CG4A_OFF_PIXMAP 0x400000 #define CG4A_OFF_OVERLAY 0xC00000 #define CG4A_OBIO_CMAP 0x0E0000 /* OBIO space! */ /* colormap/status register structure */ struct amd_regs { u_char r[CG4_CMAP_ENTRIES]; u_char g[CG4_CMAP_ENTRIES]; u_char b[CG4_CMAP_ENTRIES]; u_char status; #define CG4A_STATUS_FIRSTHALF 0x80 #define CG4A_STATUS_TOOLATE 0x40 }; /* * Memory layout of the Type B hardware (OBMEM) * P4 appears on the Sun3/60 at 0xFF300000, so * define things relative to that. */ #define CG4B_OFF_CMAP (-0x100000) #define CG4B_OFF_OVERLAY 0x100000 #define CG4B_OFF_ENABLE 0x300000 #define CG4B_OFF_PIXMAP 0x500000 |