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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/RefPtr.h>
#include <AK/Types.h>
#include <Kernel/Interrupts/GenericInterruptHandler.h>
#include <Kernel/Interrupts/IRQController.h>
namespace Kernel {
class IRQHandler : public GenericInterruptHandler {
public:
virtual ~IRQHandler();
virtual bool handle_interrupt(const RegisterState& regs) override { return handle_irq(regs); }
virtual bool handle_irq(const RegisterState&) = 0;
void enable_irq();
void disable_irq();
virtual bool eoi() override;
virtual HandlerType type() const override { return HandlerType::IRQHandler; }
virtual StringView purpose() const override { return "IRQ Handler"sv; }
virtual StringView controller() const override { return m_responsible_irq_controller->model(); }
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);
explicit IRQHandler(u8 irq);
private:
bool m_shared_with_others { false };
bool m_enabled { false };
RefPtr<IRQController> m_responsible_irq_controller;
};
}
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