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/* $OpenBSD: vgareg.h,v 1.5 2009/02/01 14:37:22 miod Exp $ */
/* $NetBSD: vgareg.h,v 1.2 1998/05/28 16:48:41 drochner Exp $ */
/*
* Copyright (c) 1998
* Matthias Drochner. 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.
*
* 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.
*
*/
struct reg_vgaattr { /* indexed via port 0x3c0 */
u_int8_t palette[16];
u_int8_t mode, overscan, colplen, horpixpan;
u_int8_t colreset, misc;
} __packed;
#define VGA_ATC_INDEX 0
#define VGA_ATC_DATAW 0
#define VGA_ATC_DATAR 1
struct reg_vgats { /* indexed via port 0x3c4 */
u_int8_t syncreset, mode, wrplmask, fontsel, memmode;
} __packed;
#define VGA_TS_INDEX 4
#define VGA_TS_DATA 5
struct reg_vgagdc { /* indexed via port 0x3ce */
u_int8_t setres, ensetres, colorcomp, rotfunc;
u_int8_t rdplanesel, mode, misc, colorcare;
u_int8_t bitmask;
} __packed;
#define VGA_GDC_INDEX 0xe
#define VGA_GDC_DATA 0xf
#define VGA_DAC_MASK 0x06 /* pixel write mask */
#define VGA_DAC_READ 0x07 /* palette read address */
#define VGA_DAC_WRITE 0x08 /* palette write address */
#define VGA_DAC_DATA 0x09 /* palette data register */
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