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Diffstat (limited to 'hw/kdrive/vesa/vm86.h')
| -rw-r--r-- | hw/kdrive/vesa/vm86.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/hw/kdrive/vesa/vm86.h b/hw/kdrive/vesa/vm86.h new file mode 100644 index 000000000..c0338e9d2 --- /dev/null +++ b/hw/kdrive/vesa/vm86.h @@ -0,0 +1,165 @@ +/* + * $XFree86$ + * + * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc. + * + * 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. + */ +/* +Copyright (c) 2000 by Juliusz Chroboczek + +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: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#ifndef _VM86_H_ +#define _VM86_H_ + +#include <stdlib.h> +#include <errno.h> +#include <unistd.h> +#include <fcntl.h> +#include <sys/mman.h> +#include <sys/vm86.h> +#include <sys/io.h> + +#ifdef NOT_IN_X_SERVER +#include <stdio.h> +#include <stdarg.h> +#include <malloc.h> +static void ErrorF(char*, ...); +#define xalloc(a) malloc(a) +#define xcalloc(a,b) calloc(a,b) +#define xfree(a) free(a) +#else +#include "X.h" +#include "Xproto.h" +#include "Xos.h" +#include "os.h" +#endif + +typedef unsigned char U8; +typedef unsigned short U16; +typedef unsigned int U32; + +/* The whole addressable memory */ +#define SYSMEM_BASE 0x00000 +#define SYSMEM_SIZE 0x100000 + +/* Interrupt vectors and BIOS data area */ +/* This is allocated privately from /dev/mem */ +#define MAGICMEM_BASE 0x00000 +#define MAGICMEM_SIZE 0x01000 + +/* The low memory, allocated privately from /dev/zero */ +/* 64KB should be enough for anyone, as they used to say */ +#define LOMEM_BASE 0x10000 +#define LOMEM_SIZE 0x10000 + +/* The video memory and BIOS ROM, allocated shared from /dev/mem */ +#define HIMEM_BASE 0xA0000 +#define HIMEM_SIZE (SYSMEM_BASE + SYSMEM_SIZE - HIMEM_BASE) + +/* The BIOS ROM */ +#define ROM_BASE 0xC0000 +#define ROM_SIZE 0x30000 + +#define STACK_SIZE 0x1000 + +#define POINTER_SEGMENT(ptr) (((unsigned int)ptr)>>4) +#define POINTER_OFFSET(ptr) (((unsigned int)ptr)&0x000F) +#define MAKE_POINTER(seg, off) (((((unsigned int)(seg))<<4) + (unsigned int)(off))) +#define MAKE_POINTER_1(lw) MAKE_POINTER(((lw)&0xFFFF0000)/0x10000, (lw)&0xFFFF) +#define ALLOC_FAIL ((U32)-1) + +typedef struct _Vm86InfoRec { + void *magicMem, *loMem, *hiMem; + U32 brk; + struct vm86_struct vms; + U32 ret_code, stack_base; +} Vm86InfoRec, *Vm86InfoPtr; + +#define LM(vi,i) (((char*)vi->loMem)[i-LOMEM_BASE]) +#define LMW(vi,i) (*(U16*)(&LM(vi,i))) +#define LML(vi,i) (*(U32*)(&LM(vi,i))) +#define MM(vi,i) (((char*)vi->magicMem)[i-MAGICMEM_BASE]) +#define MMW(vi,i) (*(U16*)(&MM(vi,i))) +#define MML(vi,i) (*(U32*)(&MM(vi,i))) +#define HM(vi,i) (((char*)vi->hiMem)[i-HIMEM_BASE]) +#define HMW(vi,i) (*(U16*)(&MM(vi,i))) +#define HML(vi,i) (*(U32*)(&MM(vi,i))) + +Vm86InfoPtr +Vm86Setup(void); + +void +Vm86Cleanup(Vm86InfoPtr vi); + +int +Vm86DoInterrupt(Vm86InfoPtr vi, int num); + +int +Vm86IsMemory(Vm86InfoPtr vi, U32 i); + +U8 +Vm86Memory(Vm86InfoPtr, U32); + +U16 +Vm86MemoryW(Vm86InfoPtr, U32); + +U32 +Vm86MemoryL(Vm86InfoPtr, U32); + +void +Vm86WriteMemory(Vm86InfoPtr, U32, U8); + +void +Vm86WriteMemoryW(Vm86InfoPtr, U32, U16); + +void +Vm86WriteMemoryL(Vm86InfoPtr, U32, U32); + +int +Vm86AllocateMemory(Vm86InfoPtr, int); + +int +Vm86MarkMemory (Vm86InfoPtr vi); + +void +Vm86ReleaseMemory (Vm86InfoPtr vi, int mark); + +void +Vm86Debug(Vm86InfoPtr vi); + +#endif /* _VM86_H_ */ |