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/* $NetBSD: cg4reg.h,v 1.3 1996/10/29 19:54:21 gwr 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. 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, Berkeley and its contributors.
* 4. 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.
*/
#define CG4_TYPE_A 0
#define CG4_TYPE_B 1
/*
* Memory layout of the Type A hardware (OBMEM)
*/
#define CG4A_DEF_BASE 0xFE400000 /* Sun3/110 */
#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)
* Appears on the Sun3/60 at base 0xFF200000
*/
#define CG4B_DEF_BASE 0xFF200000 /* Sun3/60 */
#define CG4B_OFF_CMAP 0
#define CG4B_OFF_OVERLAY 0x200000
#define CG4B_OFF_ENABLE 0x400000
#define CG4B_OFF_PIXMAP 0x600000
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