88 lines
3.2 KiB
C
88 lines
3.2 KiB
C
/* $NetBSD: cg4reg.h,v 1.6 2003/08/07 16:29:55 agc Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)cgthreereg.h 8.2 (Berkeley) 10/30/93
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*/
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/*
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* Size that can be mapped (user-level mmap).
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*/
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#define CG4_OVERLAY_SIZE 0x20000 /* size of overlay plane */
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#define CG4_ENABLE_SIZE 0x20000 /* size of enable plane */
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#define CG4_PIXMAP_SIZE 0x100000 /* size of frame buffer */
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/* number of colormap entries */
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#define CG4_CMAP_ENTRIES 256
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/*
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* There are two kinds of cg4 hardware:
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* "Type A" has a AMD DACs (Digital-to-Analog Converters)
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* "Type B" has a Brooktree DACs. H/W addresses differ too.
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*/
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/*
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* Memory layout of the Type A hardware (OBMEM)
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*/
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#define CG4A_OFF_ENABLE 0
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#define CG4A_OFF_PIXMAP 0x400000
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#define CG4A_OFF_OVERLAY 0xC00000
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#define CG4A_OBIO_CMAP 0x0E0000 /* OBIO space! */
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/* colormap/status register structure */
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struct amd_regs {
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u_char r[CG4_CMAP_ENTRIES];
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u_char g[CG4_CMAP_ENTRIES];
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u_char b[CG4_CMAP_ENTRIES];
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u_char status;
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#define CG4A_STATUS_FIRSTHALF 0x80
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#define CG4A_STATUS_TOOLATE 0x40
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};
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/*
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* Memory layout of the Type B hardware (OBMEM)
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* P4 appears on the Sun3/60 at 0xFF300000, so
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* define things relative to that.
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*/
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#define CG4B_OFF_CMAP (-0x100000)
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#define CG4B_OFF_OVERLAY 0x100000
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#define CG4B_OFF_ENABLE 0x300000
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#define CG4B_OFF_PIXMAP 0x500000
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