mirror of
https://github.com/reactos/wine.git
synced 2024-12-05 02:07:16 +00:00
216 lines
6.0 KiB
C
216 lines
6.0 KiB
C
/*
|
|
* DOS interrupt 16h handler
|
|
*
|
|
* Copyright 1998 Joseph Pranevich
|
|
* Copyright 1999 Ove Kåven
|
|
*
|
|
* 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 "config.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#ifdef HAVE_UNISTD_H
|
|
# include <unistd.h>
|
|
#endif
|
|
|
|
#include "dosexe.h"
|
|
#include "wincon.h"
|
|
#include "wine/debug.h"
|
|
#include "windef.h"
|
|
#include "wingdi.h"
|
|
#include "winuser.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(int);
|
|
|
|
/**********************************************************************
|
|
* DOSVM_Int16Handler (WINEDOS16.122)
|
|
*
|
|
* Handler for int 16h (keyboard)
|
|
*
|
|
* NOTE:
|
|
*
|
|
* KEYB.COM (DOS >3.2) adds functions to this interrupt, they are
|
|
* not currently listed here.
|
|
*/
|
|
|
|
void WINAPI DOSVM_Int16Handler( CONTEXT86 *context )
|
|
{
|
|
BIOSDATA *data = NULL;
|
|
BYTE ascii, scan;
|
|
|
|
switch AH_reg(context) {
|
|
|
|
case 0x00: /* Get Keystroke */
|
|
/* Returns: AH = Scan code
|
|
AL = ASCII character */
|
|
TRACE("Get Keystroke\n");
|
|
DOSVM_Int16ReadChar(&ascii, &scan, context);
|
|
SET_AL( context, ascii );
|
|
SET_AH( context, scan );
|
|
break;
|
|
|
|
case 0x01: /* Check for Keystroke */
|
|
/* Returns: ZF set if no keystroke */
|
|
/* AH = Scan code */
|
|
/* AL = ASCII character */
|
|
TRACE("Check for Keystroke\n");
|
|
if (!DOSVM_Int16ReadChar(&ascii, &scan, NULL))
|
|
{
|
|
SET_ZFLAG(context);
|
|
}
|
|
else
|
|
{
|
|
SET_AL( context, ascii );
|
|
SET_AH( context, scan );
|
|
RESET_ZFLAG(context);
|
|
}
|
|
/* don't miss the opportunity to break some tight timing loop in DOS
|
|
* programs causing 100% CPU usage (by doing a Sleep here) */
|
|
Sleep(5);
|
|
break;
|
|
|
|
case 0x02: /* Get Shift Flags */
|
|
|
|
/* read value from BIOS data segment's keyboard status flags field */
|
|
data = DOSVM_BiosData();
|
|
SET_AL( context, data->KbdFlags1 );
|
|
|
|
TRACE("Get Shift Flags: returning 0x%02x\n", AL_reg(context));
|
|
break;
|
|
|
|
case 0x03: /* Set Typematic Rate and Delay */
|
|
FIXME("Set Typematic Rate and Delay - Not Supported\n");
|
|
break;
|
|
|
|
case 0x05:/*simulate Keystroke*/
|
|
FIXME("Simulating a keystroke is not supported yet\n");
|
|
break;
|
|
|
|
case 0x09: /* Get Keyboard Functionality */
|
|
FIXME("Get Keyboard Functionality - Not Supported\n");
|
|
/* As a temporary measure, say that "nothing" is supported... */
|
|
SET_AL( context, 0 );
|
|
break;
|
|
|
|
case 0x0a: /* Get Keyboard ID */
|
|
FIXME("Get Keyboard ID - Not Supported\n");
|
|
break;
|
|
|
|
case 0x10: /* Get Enhanced Keystroke */
|
|
TRACE("Get Enhanced Keystroke - Partially supported\n");
|
|
/* Returns: AH = Scan code
|
|
AL = ASCII character */
|
|
DOSVM_Int16ReadChar(&ascii, &scan, context);
|
|
SET_AL( context, ascii );
|
|
SET_AH( context, scan );
|
|
break;
|
|
|
|
|
|
case 0x11: /* Check for Enhanced Keystroke */
|
|
/* Returns: ZF set if no keystroke */
|
|
/* AH = Scan code */
|
|
/* AL = ASCII character */
|
|
TRACE("Check for Enhanced Keystroke - Partially supported\n");
|
|
if (!DOSVM_Int16ReadChar(&ascii, &scan, NULL))
|
|
{
|
|
SET_ZFLAG(context);
|
|
}
|
|
else
|
|
{
|
|
SET_AL( context, ascii );
|
|
SET_AH( context, scan );
|
|
RESET_ZFLAG(context);
|
|
}
|
|
break;
|
|
|
|
case 0x12: /* Get Extended Shift States */
|
|
FIXME("Get Extended Shift States - Not Supported\n");
|
|
break;
|
|
|
|
default:
|
|
FIXME("Unknown INT 16 function - 0x%x\n", AH_reg(context));
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
/**********************************************************************
|
|
* DOSVM_Int16ReadChar
|
|
*
|
|
* Either peek into keyboard buffer or wait for next keystroke.
|
|
*
|
|
* If waitctx is NULL, return TRUE if buffer had keystrokes and
|
|
* FALSE if buffer is empty. Returned keystroke will be left into buffer.
|
|
*
|
|
* If waitctx is non-NULL, wait until keystrokes are available.
|
|
* Return value will always be TRUE and returned keystroke will be
|
|
* removed from buffer.
|
|
*/
|
|
int WINAPI DOSVM_Int16ReadChar(BYTE *ascii, BYTE *scan, CONTEXT86 *waitctx)
|
|
{
|
|
BIOSDATA *data = DOSVM_BiosData();
|
|
WORD CurOfs = data->NextKbdCharPtr;
|
|
|
|
/* check if there's data in buffer */
|
|
if (waitctx)
|
|
{
|
|
/* wait until input is available... */
|
|
while (CurOfs == data->FirstKbdCharPtr)
|
|
DOSVM_Wait( waitctx );
|
|
}
|
|
else
|
|
{
|
|
if (CurOfs == data->FirstKbdCharPtr)
|
|
return FALSE;
|
|
}
|
|
|
|
/* read from keyboard queue */
|
|
TRACE( "(%p,%p,%p) -> %02x %02x\n", ascii, scan, waitctx,
|
|
((BYTE*)data)[CurOfs], ((BYTE*)data)[CurOfs+1] );
|
|
|
|
if (ascii) *ascii = ((BYTE*)data)[CurOfs];
|
|
if (scan) *scan = ((BYTE*)data)[CurOfs+1];
|
|
|
|
if (waitctx)
|
|
{
|
|
CurOfs += 2;
|
|
if (CurOfs >= data->KbdBufferEnd) CurOfs = data->KbdBufferStart;
|
|
data->NextKbdCharPtr = CurOfs;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
int WINAPI DOSVM_Int16AddChar(BYTE ascii,BYTE scan)
|
|
{
|
|
BIOSDATA *data = DOSVM_BiosData();
|
|
WORD CurOfs = data->FirstKbdCharPtr;
|
|
WORD NextOfs = CurOfs + 2;
|
|
|
|
TRACE("(%02x,%02x)\n",ascii,scan);
|
|
if (NextOfs >= data->KbdBufferEnd) NextOfs = data->KbdBufferStart;
|
|
/* check if buffer is full */
|
|
if (NextOfs == data->NextKbdCharPtr) return 0;
|
|
|
|
/* okay, insert character in ring buffer */
|
|
((BYTE*)data)[CurOfs] = ascii;
|
|
((BYTE*)data)[CurOfs+1] = scan;
|
|
|
|
data->FirstKbdCharPtr = NextOfs;
|
|
return 1;
|
|
}
|