dlls/winedos/int15.c

   1 /*
   2  * BIOS interrupt 15h handler
   3  *
   4  * Copyright 1997 Jan Willamowius
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdlib.h>
  22 #include "dosexe.h"
  23 #include "wine/debug.h"
  24 #include "wine/winbase16.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(int);
  27
  28
  29 /**********************************************************************
  30  *          DOSVM_Int15Handler (WINEDOS16.121)
  31  *
  32  * Handler for int 15h
  33  */
  34 void WINAPI DOSVM_Int15Handler( CONTEXT86 *context )
  35 {
  36     switch(AH_reg(context))
  37     {
  38     case 0x84: /* read joystick information */
  39         FIXME("Read joystick information not implemented\n");
  40
  41         /* FIXME: report status as if no game port exists */
  42         switch(DX_reg(context))
  43         {
  44         case 0x0: /* read joystick switches */
  45             SET_AL( context, 0x0 ); /* all switches open */
  46             break;
  47         case 0x1: /* read joystick position */
  48             SET_AX( context, 0x0 );
  49             SET_BX( context, 0x0 );
  50             SET_CX( context, 0x0 );
  51             SET_DX( context, 0x0 );
  52             break;
  53         default:
  54             INT_BARF( context, 0x15 );
  55             break;
  56         }
  57
  58         RESET_CFLAG(context);
  59         break;
  60
  61     case 0x88: /* get size of memory above 1 M */
  62         SET_AX( context, 64 );  /* FIXME: are 64K ok? */
  63         RESET_CFLAG(context);
  64         break;
  65
  66     case 0xc0: /* GET CONFIGURATION */
  67         if (ISV86(context))
  68         {
  69             /* real mode segment */
  70             context->SegEs = 0xf000;
  71         }
  72         else
  73         {
  74             /* KERNEL.194: __F000H - protected mode selector */
  75             FARPROC16 proc = GetProcAddress16( GetModuleHandle16("KERNEL"),
  76                                                (LPCSTR)(ULONG_PTR)194 );
  77             context->SegEs = LOWORD(proc);
  78         }
  79         SET_BX( context, 0xe6f5 );
  80         SET_AH( context, 0x0 );
  81         RESET_CFLAG(context);
  82         break;
  83
  84     case 0xc2:
  85         switch(AL_reg(context))
  86         {
  87         case 0x00: /* Enable-Disable Pointing Device (mouse) */
  88             /* BH = newstate, 00h = disabled 01h = enabled */
  89             switch(BH_reg(context))
  90             {
  91                 case 0x00:
  92                     FIXME("Disable Pointing Device - not implemented\n");
  93                     break;
  94                 case 0x01:
  95                     FIXME("Enable Pointing Device - not implemented\n");
  96                     break;
  97                 default:
  98                     INT_BARF( context, 0x15 );
  99                     break;
 100             }
 101             SET_AH( context, 0x00 ); /* successful */
 102             break;
 103         case 0x02: /* Set Sampling Rate */
 104             /* BH = sampling rate */
 105             FIXME("Set Sampling Rate - not implemented\n");
 106             SET_AH( context, 0x00 ); /* successful */
 107             break;
 108         case 0x04: /* Get Pointing Device Type */
 109             FIXME("Get Pointing Device Type - not implemented\n");
 110             /* FIXME: BH = Device id, What is it supposed to be? */
 111             SET_BH( context, 0x01 );
 112             break;
 113         default:
 114             INT_BARF( context, 0x15 );
 115         }
 116         break;
 117
 118     default:
 119         INT_BARF( context, 0x15 );
 120     }
 121 }