static unsafe void IRQHandler(IDT.ISRData data)
{
uint index = (uint)data.Stack->IrqIndex - 0x20;
if ((index < 0) || (index > 0x0F))
{
return;
}
irqs[index] = true;
if (callBacks[index].callback != null)
{
// call the callback methods
// note this is a temporary solution until threads are implemented
bool mine = callBacks[index].callback.OnInterrupt(index);
//if (mine)
// irqs[index] = false;
}
}
private static unsafe void TimerHandler(IDT.ISRData data)
{
ticks++;
for (int x = 0; x < EntryModule.MaxEventHandlers; ++x)
{
if (timerEvent[x] == 0)
{
continue;
}
MemoryUtil.Call(timerEvent[x], ticks);
}
SharpOS.Kernel.ADC.Thread thread = Dispatcher.Dispatch((void *)data.Stack);
if (thread != null)
{
IDT.Stack *newStack = (IDT.Stack *)thread.StackPointer;
newStack->IrqIndex = data.Stack->IrqIndex;
data.Stack = newStack;
}
}
static unsafe void DivideByZeroHandler(IDT.ISRData data)
{
SharpOS.Korlib.Runtime.Runtime.Throw(new InternalSystem.DivideByZeroException(), 4);
}
static unsafe void KeyboardHandler(IDT.ISRData data)
{
// Read from the keyboard's data buffer
byte input;
uint scancode;
bool pressed;
input = IO.ReadByte(IO.Port.KB_data_port);
/* XXX: why is this commented out?
*
* if (input == KeyboardMessages.Too_Many_Keys ||
* input == KeyboardMessages.Keyboard_Error)
* {
* // TODO: do something usefull here..
* return;
* }
*
*/
if (input == 0xe0)
{
input = IO.ReadByte(IO.Port.KB_data_port);
scancode = (uint)((input & 0x7F) >> 8) | 0xe0;
pressed = (input & 0x80) == 0;
}
else if (input == 0xe1)
{
input = IO.ReadByte(IO.Port.KB_data_port);
scancode = (uint)(input & 0x7F);
pressed = (input & 0x80) == 0;
return;
}
else
{
scancode = (uint)(input & 0x7F);
pressed = (input & 0x80) == 0;
}
if (scancode == (uint)Keys.CapsLock) // CapsLock
{
if (pressed)
{
if (capsLockReleased)
{
capsLock = !capsLock;
}
capsLockReleased = false;
SetLEDs();
}
else
{
capsLockReleased = true;
}
return;
}
else if (scancode == (uint)Keys.NumLock) // NumLock
{
if (pressed)
{
if (numLockReleased)
{
numLock = !numLock;
}
numLockReleased = false;
SetLEDs();
}
else
{
numLockReleased = true;
}
return;
}
else if (scancode == (uint)Keys.ScrollLock) // ScrollLock
{
if (pressed)
{
if (scrollLockReleased)
{
scrollLock = !scrollLock;
}
scrollLockReleased = false;
SetLEDs();
}
else
{
scrollLockReleased = true;
}
return;
}
else if (scancode == (uint)Keys.LeftControl) // left control
{
leftControl = pressed;
return;
}
else if (scancode == (uint)Keys.LeftShift) // left shift
{
leftShift = pressed;
return;
}
else if (scancode == (uint)Keys.LeftAlt) // left alt
{
leftAlt = pressed;
return;
}
else if (scancode == (uint)Keys.RightAlt) // right alt
{
rightAlt = pressed;
return;
}
else if (scancode == (uint)Keys.RightControl) // right control
{
rightControl = pressed;
return;
}
else if (scancode == (uint)Keys.RightShift) // right shift
{
rightShift = pressed;
return;
}
if (pressed)
{
for (int x = 0; x < EntryModule.MaxEventHandlers; ++x)
{
if (keyDownEvent [x] == 0)
{
continue;
}
MemoryUtil.Call(keyDownEvent [x], scancode);
}
}
else
{
for (int x = 0; x < EntryModule.MaxEventHandlers; ++x)
{
if (keyUpEvent [x] == 0)
{
continue;
}
MemoryUtil.Call(keyUpEvent [x], scancode);
}
}
}
