1/* $NetBSD: vgareg.h,v 1.9 2005/12/11 12:21:29 christos Exp $ */
2
3/*
4 * Copyright (c) 1998
5 * Matthias Drochner. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 */
28
29struct reg_vgaattr { /* indexed via port 0x3c0 */
30 u_int8_t palette[16];
31 u_int8_t mode, overscan, colplen, horpixpan;
32 u_int8_t colreset, misc;
33};
34#define VGA_ATC_NREGS 21
35#define VGA_ATC_INDEX 0x0
36#define VGA_ATC_DATAW 0x0
37#define VGA_ATC_DATAR 0x1
38#define VGA_ATC_OVERSCAN 0x11
39
40struct reg_vgats { /* indexed via port 0x3c4 */
41 u_int8_t syncreset, mode, wrplmask, fontsel, memmode;
42};
43#define VGA_TS_MODE_BLANK 0x20
44
45#define VGA_TS_NREGS 5
46#define VGA_TS_INDEX 0x4
47#define VGA_TS_DATA 0x5
48
49struct reg_vgagdc { /* indexed via port 0x3ce */
50 u_int8_t setres, ensetres, colorcomp, rotfunc;
51 u_int8_t rdplanesel, mode, misc, colorcare;
52 u_int8_t bitmask;
53};
54#define VGA_GDC_NREGS 9
55#define VGA_GDC_INDEX 0xe
56#define VGA_GDC_DATA 0xf
57
58/*
59 * CRTC registers are defined in sys/dev/ic/mc6845reg.h
60 */
61
62/* video DAC palette registers */
63#define VGA_DAC_PELMASK 0x6
64#define VGA_DAC_STATE 0x7
65#define VGA_DAC_ADDRR 0x7
66#define VGA_DAC_ADDRW 0x8
67#define VGA_DAC_PALETTE 0x9
68
69/* misc output register */
70#define VGA_MISC_DATAR 0xc
71#define VGA_MISC_DATAW 0x2
72