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Kernel/Interrupts: Return boolean on whether we handled the interrupt

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If we are in a shared interrupt handler, the called handlers might
indicate it was not their interrupt, so we should not increment the
call counter of these handlers.
This commit is contained in:
Liav A 2021-06-05 09:00:18 +03:00 • committed by Andreas Kling
parent 7a6d5a7b8b
commit b91df26d4a
43 changed files with 125 additions and 71 deletions
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9
Kernel/Devices/HID/I8042Controller.cpp
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@ -129,25 +129,26 @@ UNMAP_AFTER_INIT void I8042Controller::detect_devices()
m_mouse_device->enable_interrupts();
}
void I8042Controller::irq_process_input_buffer(HIDDevice::Type)
bool I8042Controller::irq_process_input_buffer(HIDDevice::Type)
{
VERIFY(Processor::current().in_irq());
u8 status = IO::in8(I8042_STATUS);
if (!(status & I8042_BUFFER_FULL))
return;
return false;
HIDDevice::Type data_for_device = ((status & I8042_WHICH_BUFFER) == I8042_MOUSE_BUFFER) ? HIDDevice::Type::Mouse : HIDDevice::Type::Keyboard;
u8 byte = IO::in8(I8042_BUFFER);
if (data_for_device == HIDDevice::Type::Mouse) {
VERIFY(m_mouse_device);
static_cast<PS2MouseDevice&>(*m_mouse_device).irq_handle_byte_read(byte);
return;
return true;
}
if (data_for_device == HIDDevice::Type::Keyboard) {
VERIFY(m_keyboard_device);
static_cast<PS2KeyboardDevice&>(*m_keyboard_device).irq_handle_byte_read(byte);
return;
return true;
}
return false;
}
void I8042Controller::do_drain()