mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-21 10:19:03 +03:00
6f914ed0a4
The IRQController object is RefCounted, and is shared between the InterruptManagement class & IRQ handlers' classes. IRQHandler, SharedIRQHandler & SpuriousInterruptHandler classes use a responsible IRQ controller directly instead of calling InterruptManagement for disable(), enable() or eoi(). Also, the initialization process of InterruptManagement is simplified, so it doesn't rely on an ACPI parser to be initialized.
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/RefPtr.h>
|
|
#include <AK/String.h>
|
|
#include <AK/Types.h>
|
|
#include <Kernel/Arch/i386/CPU.h>
|
|
#include <Kernel/Interrupts/GenericInterruptHandler.h>
|
|
#include <Kernel/Interrupts/IRQController.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class IRQHandler : public GenericInterruptHandler {
|
|
public:
|
|
virtual ~IRQHandler();
|
|
|
|
virtual void handle_interrupt(RegisterState& regs) { handle_irq(regs); }
|
|
virtual void handle_irq(RegisterState&) = 0;
|
|
|
|
void enable_irq();
|
|
void disable_irq();
|
|
|
|
virtual bool eoi() override;
|
|
|
|
virtual HandlerPurpose purpose() const override { return HandlerPurpose::IRQHandler; }
|
|
|
|
virtual size_t sharing_devices_count() const override { return 0; }
|
|
virtual bool is_shared_handler() const override { return false; }
|
|
virtual bool is_sharing_with_others() const override { return m_shared_with_others; }
|
|
|
|
protected:
|
|
void change_irq_number(u8 irq);
|
|
IRQHandler(u8 irq);
|
|
|
|
private:
|
|
bool m_shared_with_others { false };
|
|
bool m_enabled { false };
|
|
RefPtr<IRQController> m_responsible_irq_controller;
|
|
};
|
|
|
|
}
|