/* * Copyright © 1999 Keith Packard * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of Keith Packard not be used in * advertising or publicity pertaining to distribution of the software without * specific, written prior permission. Keith Packard makes no * representations about the suitability of this software for any purpose. It * is provided "as is" without express or implied warranty. * * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ /* $XFree86: xc/programs/Xserver/hw/tinyx/vga.h,v 1.1 2004/06/02 22:43:01 dawes Exp $ */ /* * Copyright (c) 2004 by The XFree86 Project, Inc. * All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject * to the following conditions: * * 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, and in the same place and form as other copyright, * license and disclaimer information. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: "This product * includes software developed by The XFree86 Project, Inc * (http://www.xfree86.org/) and its contributors", in the same * place and form as other third-party acknowledgments. Alternately, * this acknowledgment may appear in the software itself, in the * same form and location as other such third-party acknowledgments. * * 4. Except as contained in this notice, the name of The XFree86 * Project, Inc shall not be used in advertising or otherwise to * promote the sale, use or other dealings in this Software without * prior written authorization from The XFree86 Project, Inc. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 XFREE86 PROJECT, INC OR ITS 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. */ #ifndef _VGA_H_ #define _VGA_H_ typedef unsigned long VGA32; typedef unsigned short VGA16; typedef unsigned char VGA8; typedef int VGABOOL; typedef volatile VGA8 VGAVOL8; #define VGATRUE 1 #define VGAFALSE 0 typedef struct _vgaReg { VGA16 id; VGA8 base; VGA8 len; } VgaReg; #define VGA_REG_NONE 0xffff #define VGA_REG_END {VGA_REG_NONE, 0, 0} typedef struct _vgaValue { VGA8 save; VGA8 cur; VGA16 flags; } VgaValue; #define VGA_VALUE_VALID 1 /* value ever fetched */ #define VGA_VALUE_MODIFIED 2 /* value ever changed */ #define VGA_VALUE_DIRTY 4 /* value needs syncing */ #define VGA_VALUE_SAVED 8 /* value preserved */ typedef enum _vgaAccess { VgaAccessMem, VgaAccessIo, VgaAccessIndMem, VgaAccessIndIo, VgaAccessDone } VgaAccess; typedef struct _vgaMap { VgaAccess access; VGA32 port; VGA8 addr; /* for Ind access; addr offset from port */ VGA8 value; /* for Ind access; value offset from port */ VGA8 index; /* for Ind access; index value */ } VgaMap; #define VGA_UNLOCK_FIXED 1 /* dont save current value */ #define VGA_UNLOCK_LOCK 2 /* execute only on relock */ #define VGA_UNLOCK_UNLOCK 4 /* execute only on unlock */ typedef struct _vgaSave { VGA16 first; VGA16 last; } VgaSave; #define VGA_SAVE_END {VGA_REG_NONE, VGA_REG_NONE} typedef struct _vgaCard { void (*map) (struct _vgaCard *card, VGA16 reg, VgaMap *map, VGABOOL write); void *closure; int max; VgaValue *values; VgaSave *saves; } VgaCard; VGA8 VgaInb (VGA16 r); void VgaOutb (VGA8 v, VGA16 r); VGA8 VgaReadMemb (VGA32 addr); void VgaWriteMemb (VGA8 v, VGA32 addr); void VgaSetImm (VgaCard *card, VgaReg *reg, VGA32 value); VGA32 VgaGetImm (VgaCard *card, VgaReg *reg); void VgaSet (VgaCard *card, VgaReg *reg, VGA32 value); VGA32 VgaGet (VgaCard *card, VgaReg *reg); void VgaFlush (VgaCard *card); void VgaFinish (VgaCard *card); void VgaFill (VgaCard *card, VGA16 low, VGA16 high); void VgaPreserve (VgaCard *card); void VgaInvalidate (VgaCard *card); void VgaRestore (VgaCard *card); VGA8 VgaFetch (VgaCard *card, VGA16 id); void VgaStore (VgaCard *card, VGA16 id, VGA8 value); VGA8 _VgaFetchInd (VGA16 port, VGA8 reg); void _VgaStoreInd (VGA16 port, VGA8 reg, VGA8 value); #endif /* _VGA_H_ */