Files
TempleOS-Rijn/Kernel/KeyDev.CPP
T
2018-09-08 21:46:09 +02:00

146 lines
3.4 KiB
C++

U0 PutKey(I64 ch=0,I64 sc=0)
{//See $LK,"Keyboard Devices",A="HI:Keyboard Devices/System"$.
CKeyDevEntry *tempp;
if (ch||sc) {
tempp=keydev.put_key_root.next;
if (!Bt(&Fs->display_flags,DISPLAYf_SILENT)) {
if (kbd.scan_code & SCF_SCROLL && sys_focus_task==Fs)
while (kbd.scan_code & SCF_SCROLL)
Yield; //Wait on SCROLL LOCK Key
while (tempp!=&keydev.put_key_root) {
if ((!(sc & SCF_KEY_DESC) || tempp->flags & KDF_HAS_DESCS) &&
(*tempp->put_key)(ch,sc))
break;
tempp=tempp->next;
}
}
}
}
U0 PutChars(U64 ch)
{//Output chars. Can pack multiple chars into a single U64.
while (ch) {
PutKey(ch&255,0);
ch>>=8;
}
}
U0 PutS(U8 *st)
{//Use $LK,"Print",A="MN:Print"$(). See $LK,"Keyboard Devices",A="HI:Keyboard Devices/System"$.
I64 ch;
U8 *ptr;
Bool cont=TRUE;
if (!st) return;
CKeyDevEntry *tempp=keydev.put_key_root.next;
if (!Bt(&Fs->display_flags,DISPLAYf_SILENT)) {
if (kbd.scan_code & SCF_SCROLL && sys_focus_task==Fs)
while (kbd.scan_code & SCF_SCROLL)
Yield;
while (cont && tempp!=&keydev.put_key_root) {
if (tempp->put_s) {
if ((*tempp->put_s)(st))
break;
} else {
ptr=st;
while (ch=*ptr++)
if ((*tempp->put_key)(ch,0))
cont=FALSE;
}
tempp=tempp->next;
}
}
}
U0 SetKeyDesc(U8 *fmt,...)
{//Call this from key handler to report desc in $LK,"KeyMap",A="MN:KeyMap"$().
I64 i;
U8 *buf=StrPrintJoin(NULL,fmt,argc,argv);
StrCpy(keydev.desc,buf);
keydev.handler=Caller;
Free(buf);
for (i=0;i<5;i++)
Yield; //Makes KeyMap work better.
}
CKeyDevEntry *KeyDevAdd(Bool (*fp_put_key)(I64 ch,I64 sc),Bool (*fp_puts)(U8 *st),I64 priority,Bool key_descs=FALSE)
{//Places hook in StdOut chain. See $LK,"Keyboard Devices",A="HI:Keyboard Devices/System"$.
Bool old_preempt=Preempt(OFF);
CKeyDevEntry *tempp,*tempp1=keydev.put_key_root.last;
tempp=ACAlloc(sizeof(CKeyDevEntry));
tempp->put_key=fp_put_key;
tempp->put_s=fp_puts;
tempp->priority=priority;
if (key_descs)
tempp->flags|=KDF_HAS_DESCS;
while (tempp1->priority>priority)
tempp1=tempp1->last;
QueIns(tempp,tempp1);
Preempt(old_preempt);
return tempp;
}
U0 KeyDevRem(CKeyDevEntry *tempp)
{//Remove StdOut hook and free.
Bool old_preempt=Preempt(OFF);
QueRem(tempp);
Preempt(old_preempt);
Free(tempp);
}
Bool KDRawPutKey(I64 ch,I64)
{
if (IsRaw) {
RawPutChar(ch);
return TRUE;
} else
return FALSE;
}
Bool KDRawPutS(U8 *st)
{
I64 ch;
if (IsRaw) {
while (ch=*st++)
RawPutChar(ch);
return TRUE;
} else
return FALSE;
}
Bool KDInputFilterPutKey(I64 ch,I64 scan_code)
{
Bool old_preempt;
if (Bt(&Fs->task_flags,TASKf_INPUT_FILTER_TASK)) {
old_preempt=Preempt(OFF);
Msg(MSG_KEY_DOWN,ch,scan_code);
Preempt(old_preempt);
return TRUE;
} else
return FALSE;
}
Bool KDInputFilterPutS(U8 *st)
{
I64 ch;
Bool old_preempt;
if (Bt(&Fs->task_flags,TASKf_INPUT_FILTER_TASK)) {
old_preempt=Preempt(OFF);
while (ch=*st++)
Msg(MSG_KEY_DOWN,ch,0);
Preempt(old_preempt);
return TRUE;
} else
return FALSE;
}
U0 KeyDevInit()
{
keydev.fp_ctrl_alt_let_cbs =CAlloc(26*sizeof(U8 *));
keydev.ctrl_alt_let_descs =CAlloc(26*sizeof(U8 *));
keydev.ctrl_alt_let_in_irq_flags=0;
MemSet(&keydev.put_key_root,0,sizeof(CKeyDevEntry));
QueInit(&keydev.put_key_root);
KeyDevAdd(&KDInputFilterPutKey,&KDInputFilterPutS,0x40000000,FALSE);
KeyDevAdd(&KDRawPutKey,&KDRawPutS,0x60000000,FALSE);
}