| /* |
| * DOS interrupt 09h handler (IRQ1 - KEYBOARD) |
| */ |
| |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "wingdi.h" |
| #include "winuser.h" |
| #include "miscemu.h" |
| #include "debugtools.h" |
| #include "callback.h" |
| #include "dosexe.h" |
| |
| DEFAULT_DEBUG_CHANNEL(int); |
| |
| #define QUEUELEN 31 |
| |
| static struct |
| { |
| BYTE queuelen,queue[QUEUELEN],ascii[QUEUELEN]; |
| } kbdinfo; |
| |
| |
| /********************************************************************** |
| * INT_Int09Handler |
| * |
| * Handler for int 09h. |
| */ |
| void WINAPI INT_Int09Handler( CONTEXT86 *context ) |
| { |
| BYTE ascii, scan = INT_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 { |
| #if 0 /* FIXME: cannot call USER functions here */ |
| UINT vkey = MapVirtualKeyA(scan&0x7f, 1); |
| /* as in TranslateMessage, windows/input.c */ |
| cnt = ToAscii(vkey, scan, QueueKeyStateTable, (LPWORD)ch, 0); |
| #else |
| cnt = 0; |
| #endif |
| } |
| if (cnt>0) { |
| for (c2=0; c2<cnt; c2++) |
| INT_Int16AddChar(ch[c2], scan); |
| } else |
| if (cnt==0) { |
| /* FIXME: need to handle things like shift-F-keys, |
| * 0xE0 extended keys, etc */ |
| INT_Int16AddChar(0, scan); |
| } |
| } |
| Dosvm.OutPIC(0x20, 0x20); /* send EOI */ |
| } |
| |
| static void KbdRelay( CONTEXT86 *context, void *data ) |
| { |
| if (kbdinfo.queuelen) { |
| /* cleanup operation, called from Dosvm.OutPIC: |
| * 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 INT_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); |
| } |
| |
| BYTE WINAPI INT_Int09ReadScan( BYTE*ascii ) |
| { |
| if (ascii) *ascii = kbdinfo.ascii[0]; |
| return kbdinfo.queue[0]; |
| } |