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Kernel: Add new IRQHandler class

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This class will replace the old IRQHandler class later.
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Liav A 2020-02-22 19:40:15 +02:00 • committed by Andreas Kling
parent b201b23363
commit dd7522bdb2
2 changed files with 147 additions and 0 deletions
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63
Kernel/Interrupts/IRQHandler.h Normal file
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/*
* 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/String.h>
#include <AK/Types.h>
#include <Kernel/Arch/i386/CPU.h>
#include <Kernel/Interrupts/GenericInterruptHandler.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 get_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);
explicit IRQHandler(u8 irq);
private:
bool m_shared_with_others { false };
bool m_enabled { false };
};
}