| /* |
| * DOS interrupt 09h handler (IRQ1 - KEYBOARD) |
| * |
| * 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 <stdlib.h> |
| #include <string.h> |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "wingdi.h" |
| #include "winuser.h" |
| #include "miscemu.h" |
| #include "wine/debug.h" |
| #include "dosexe.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(int); |
| |
| #define QUEUELEN 31 |
| |
| static struct |
| { |
| BYTE queuelen,queue[QUEUELEN],ascii[QUEUELEN]; |
| } kbdinfo; |
| |
| |
| /********************************************************************** |
| * DOSVM_Int09Handler |
| * |
| * Handler for int 09h. |
| */ |
| void WINAPI DOSVM_Int09Handler( CONTEXT86 *context ) |
| { |
| BYTE ascii, scan = DOSVM_Int09ReadScan(&ascii); |
| BYTE ch[2]; |
| int cnt, c2; |
| |
| TRACE("scan=%02x\n",scan); |
| if (!(scan & 0x80)) { |
| if (ascii) { |
| /* we already have an ASCII code, no translation necessary */ |
| ch[0] = ascii; |
| cnt = 1; |
| } else { |
| UINT vkey = MapVirtualKeyA(scan&0x7f, 1); |
| BYTE keystate[256]; |
| GetKeyboardState(keystate); |
| cnt = ToAscii(vkey, scan, keystate, (LPWORD)ch, 0); |
| } |
| if (cnt>0) { |
| for (c2=0; c2<cnt; c2++) |
| DOSVM_Int16AddChar(ch[c2], scan); |
| } else |
| if (cnt==0) { |
| /* FIXME: need to handle things like shift-F-keys, |
| * 0xE0 extended keys, etc */ |
| DOSVM_Int16AddChar(0, scan); |
| } |
| } |
| DOSVM_PIC_ioport_out( 0x20, 0x20 ); /* send EOI */ |
| } |
| |
| static void KbdRelay( CONTEXT86 *context, void *data ) |
| { |
| if (kbdinfo.queuelen) { |
| /* cleanup operation, called from DOSVM_PIC_ioport_out: |
| * we'll remove current scancode from keyboard buffer here, |
| * rather than in ReadScan, because some DOS apps depend on |
| * the scancode being available for reading multiple times... */ |
| if (--kbdinfo.queuelen) { |
| memmove(kbdinfo.queue,kbdinfo.queue+1,kbdinfo.queuelen); |
| memmove(kbdinfo.ascii,kbdinfo.ascii+1,kbdinfo.queuelen); |
| } |
| } |
| } |
| |
| void WINAPI DOSVM_Int09SendScan( BYTE scan, BYTE ascii ) |
| { |
| if (kbdinfo.queuelen == QUEUELEN) { |
| ERR("keyboard queue overflow\n"); |
| return; |
| } |
| /* add scancode to queue */ |
| kbdinfo.queue[kbdinfo.queuelen] = scan; |
| kbdinfo.ascii[kbdinfo.queuelen++] = ascii; |
| /* tell app to read it by triggering IRQ 1 (int 09) */ |
| DOSVM_QueueEvent(1,DOS_PRIORITY_KEYBOARD,KbdRelay,NULL); |
| } |
| |
| /********************************************************************** |
| * KbdReadScan (WINEDOS.@) |
| */ |
| BYTE WINAPI DOSVM_Int09ReadScan( BYTE*ascii ) |
| { |
| if (ascii) *ascii = kbdinfo.ascii[0]; |
| return kbdinfo.queue[0]; |
| } |