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97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*
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* BIOS interrupt 13h handler
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*
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* Copyright 1997 Andreas Mohr
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "winbase.h"
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#include "winioctl.h"
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#include "miscemu.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(int);
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static void DIOCRegs_2_CONTEXT( DIOC_REGISTERS *pIn, CONTEXT86 *pCxt )
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{
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memset( pCxt, 0, sizeof(*pCxt) );
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/* Note: segment registers == 0 means that CTX_SEG_OFF_TO_LIN
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will interpret 32-bit register contents as linear pointers */
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pCxt->ContextFlags=CONTEXT86_INTEGER|CONTEXT86_CONTROL;
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pCxt->Eax = pIn->reg_EAX;
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pCxt->Ebx = pIn->reg_EBX;
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pCxt->Ecx = pIn->reg_ECX;
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pCxt->Edx = pIn->reg_EDX;
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pCxt->Esi = pIn->reg_ESI;
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pCxt->Edi = pIn->reg_EDI;
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/* FIXME: Only partial CONTEXT86_CONTROL */
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pCxt->EFlags = pIn->reg_Flags;
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}
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static void CONTEXT_2_DIOCRegs( CONTEXT86 *pCxt, DIOC_REGISTERS *pOut )
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{
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memset( pOut, 0, sizeof(DIOC_REGISTERS) );
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pOut->reg_EAX = pCxt->Eax;
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pOut->reg_EBX = pCxt->Ebx;
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pOut->reg_ECX = pCxt->Ecx;
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pOut->reg_EDX = pCxt->Edx;
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pOut->reg_ESI = pCxt->Esi;
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pOut->reg_EDI = pCxt->Edi;
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/* FIXME: Only partial CONTEXT86_CONTROL */
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pOut->reg_Flags = pCxt->EFlags;
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}
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/**********************************************************************
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* INT_Int13Handler (WPROCS.119)
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*
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* Handler for int 13h (disk I/O).
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*/
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void WINAPI INT_Int13Handler( CONTEXT86 *context )
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{
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HANDLE hVWin32;
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DIOC_REGISTERS regs;
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DWORD dwRet;
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hVWin32 = CreateFileA("\\\\.\\VWIN32", GENERIC_READ|GENERIC_WRITE,
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0, NULL, OPEN_EXISTING, FILE_FLAG_DELETE_ON_CLOSE, 0);
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if(hVWin32!=INVALID_HANDLE_VALUE)
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{
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CONTEXT_2_DIOCRegs( context, ®s);
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if(!DeviceIoControl(hVWin32, VWIN32_DIOC_DOS_INT13,
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®s, sizeof regs, ®s, sizeof regs, &dwRet, NULL))
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DIOCRegs_2_CONTEXT(®s, context);
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else
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SET_CFLAG(context);
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CloseHandle(hVWin32);
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}
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else
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{
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ERR("Failed to open device VWIN32\n");
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SET_CFLAG(context);
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}
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}
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