mirror of
https://github.com/RGBCube/serenity
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77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/HashTable.h>
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#include <AK/String.h>
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#include <AK/Types.h>
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#include <Kernel/Arch/i386/CPU.h>
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namespace Kernel {
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enum class HandlerType : u8 {
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IRQHandler = 1,
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SharedIRQHandler = 2,
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UnhandledInterruptHandler = 3,
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SpuriousInterruptHandler = 4
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};
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class GenericInterruptHandler {
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public:
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static GenericInterruptHandler& from(u8 interrupt_number);
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virtual ~GenericInterruptHandler();
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virtual void handle_interrupt(RegisterState& regs) = 0;
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u8 interrupt_number() const { return m_interrupt_number; }
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bool is_enabled() const { return m_enabled; }
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size_t get_invoking_count() const { return m_invoking_count; }
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virtual size_t sharing_devices_count() const = 0;
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virtual bool is_shared_handler() const = 0;
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virtual bool is_sharing_with_others() const = 0;
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virtual HandlerType type() const = 0;
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virtual const char* purpose() const = 0;
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virtual const char* controller() const = 0;
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virtual bool eoi() = 0;
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void increment_invoking_counter();
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protected:
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void enable_interrupt_vector();
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void disable_interrupt_vector();
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void change_interrupt_number(u8 number);
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explicit GenericInterruptHandler(u8 interrupt_number);
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private:
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size_t m_invoking_count { 0 };
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bool m_enabled { false };
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u8 m_interrupt_number { 0 };
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};
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}
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