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