ladybird/Kernel/Interrupts/GenericInterruptHandler.h
2020-03-24 16:15:33 +01:00

75 lines
2.6 KiB
C++

/*
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
* 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/HashTable.h>
#include <AK/String.h>
#include <AK/Types.h>
#include <Kernel/Arch/i386/CPU.h>
namespace Kernel {
enum class HandlerType : u8 {
IRQHandler = 1,
SharedIRQHandler = 2,
UnhandledInterruptHandler = 3,
SpuriousInterruptHandler = 4
};
class GenericInterruptHandler {
public:
static GenericInterruptHandler& from(u8 interrupt_number);
virtual ~GenericInterruptHandler();
virtual void handle_interrupt(const RegisterState& regs) = 0;
u8 interrupt_number() const { return m_interrupt_number; }
bool is_enabled() const { return m_enabled; }
size_t get_invoking_count() const { return m_invoking_count; }
virtual size_t sharing_devices_count() const = 0;
virtual bool is_shared_handler() const = 0;
virtual bool is_sharing_with_others() const = 0;
virtual HandlerType type() const = 0;
virtual const char* purpose() const = 0;
virtual const char* controller() const = 0;
virtual bool eoi() = 0;
void increment_invoking_counter();
protected:
void change_interrupt_number(u8 number);
explicit GenericInterruptHandler(u8 interrupt_number);
private:
size_t m_invoking_count { 0 };
bool m_enabled { false };
u8 m_interrupt_number { 0 };
};
}