dlls/winedos/ioports.c

   1 /*
   2  * Emulation of processor ioports.
   3  *
   4  * Copyright 1995 Morten Welinder
   5  * Copyright 1998 Andreas Mohr, Ove Kaaven
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23
  24 #include "windef.h"
  25 #include "dosexe.h"
  26 #include "vga.h"
  27
  28
  29 /**********************************************************************
  30  *          DOSVM_inport
  31  */
  32 BOOL WINAPI DOSVM_inport( int port, int size, DWORD *res )
  33 {
  34     switch (port)
  35     {
  36     case 0x60:
  37         *res = DOSVM_Int09ReadScan(NULL);
  38         break;
  39     case 0x3ba:
  40     case 0x3da:
  41         *res = (DWORD)VGA_ioport_in( port );
  42         break;
  43     default:
  44         return FALSE;  /* not handled */
  45     }
  46     return TRUE;  /* handled */
  47 }
  48
  49
  50 /**********************************************************************
  51  *          DOSVM_outport
  52  */
  53 BOOL WINAPI DOSVM_outport( int port, int size, DWORD value )
  54 {
  55     switch (port)
  56     {
  57     case 0x20:
  58         DOSVM_PIC_ioport_out( port, (BYTE)value );
  59         break;
  60     case 0x3c8:
  61     case 0x3c9:
  62         VGA_ioport_out( port, (BYTE)value );
  63         break;
  64     default:
  65         return FALSE;  /* not handled */
  66     }
  67     return TRUE;  /* handled */
  68 }