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/* $OpenBSD: pfourreg.h,v 1.4 1997/08/08 08:25:21 downsj Exp $ */
/* $NetBSD: pfourreg.h,v 1.1 1996/02/27 22:09:36 thorpej Exp $ */
/*
* Copyright (c) 1996 Jason R. Thorpe. All rights reserved.
* Copyright (c) 1995 Theo de Raadt
* All rights reserved.
*
* 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 Theo de Raadt.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* pfour framebuffer registers.
*/
/* Offset of bwtwo framebuffer from pfour register */
#define PFOUR_BW_OFF 0x00100000
/* Offsets for color framebuffers */
#define PFOUR_COLOR_OFF_OVERLAY 0x00100000
#define PFOUR_COLOR_OFF_ENABLE 0x00300000
#define PFOUR_COLOR_OFF_COLOR 0x00500000
#define PFOUR_COLOR_OFF_END 0x00700000
#define PFOUR_COLOR_OFF_CMAP 0xfff00000 /* (-0x00100000) */
#define PFOUR_REG_DIAG 0x80
#define PFOUR_REG_READBACKCLR 0x40
#define PFOUR_REG_VIDEO 0x20
#define PFOUR_REG_SYNC 0x10
#define PFOUR_REG_VTRACE 0x08
#define PFOUR_REG_INT 0x04
#define PFOUR_REG_INTCLR 0x04
#define PFOUR_REG_INTEN 0x02
#define PFOUR_REG_FIRSTHALF 0x01
#define PFOUR_REG_RESET 0x01
#define PFOUR_FBTYPE_MASK 0x7f000000
#define PFOUR_FBTYPE(x) ((x) >> 24)
#define PFOUR_ID_MASK 0xf0
#define PFOUR_ID(x) (PFOUR_FBTYPE((x)) == PFOUR_ID_COLOR24 ? \
PFOUR_ID_COLOR24 : \
PFOUR_FBTYPE((x)) & PFOUR_ID_MASK)
#define PFOUR_ID_BW 0x00 /* monochrome */
#define PFOUR_ID_FASTCOLOR 0x60 /* accelerated 8-bit color */
#define PFOUR_ID_COLOR8P1 0x40 /* 8-bit color + overlay */
#define PFOUR_ID_COLOR24 0x45 /* 24-bit color + overlay */
#define PFOUR_SIZE_MASK 0x0f
#define PFOUR_SIZE(x) (PFOUR_FBTYPE((x)) & PFOUR_SIZE_MASK)
#define PFOUR_SIZE_1152X900 0x01
#define PFOUR_SIZE_1024X1024 0x02
#define PFOUR_SIZE_1280X1024 0x03
#define PFOUR_SIZE_1600X1280 0x00
#define PFOUR_SIZE_1440X1440 0x04
#define PFOUR_SIZE_640X480 0x05
#define PFOUR_NOTPFOUR -1
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