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 29 struct 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 40 struct 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 49 struct 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