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Kernel: Add IRQController class

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This class is an abstraction layer for different IRQ controllers
that are present in a typical system.
This commit is contained in:
Liav A 2020-02-22 19:23:03 +02:00 committed by Andreas Kling
parent 35f27231b3
commit b56afbea17
Notes: sideshowbarker 2024-07-19 09:07:36 +09:00 
Author: https://github.com/supercomputer7
Commit: https://github.com/SerenityOS/serenity/commit/b56afbea173
Pull-request: https://github.com/SerenityOS/serenity/pull/1274
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/shannonbooth
1 changed files with 62 additions and 0 deletions
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Kernel/Interrupts/IRQController.h Normal file
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/*
* 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/String.h>
#include <AK/Types.h>
namespace Kernel {
enum class IRQControllerType {
i8259 = 1, /* Intel 8259 Dual PIC */
i82093AA = 2 /* Intel 82093AA I/O ADVANCED PROGRAMMABLE INTERRUPT CONTROLLER (IOAPIC) */
};
class IRQController {
public:
virtual ~IRQController() {}
virtual void enable(u8 number) = 0;
virtual void disable(u8 number) = 0;
virtual void hard_disable() { m_hard_disabled = true; }
virtual bool is_vector_enabled(u8 number) const = 0;
bool is_enabled() const { return m_enabled && !m_hard_disabled; }
bool is_hard_disabled() const { return m_hard_disabled; }
virtual void eoi(u8 number) const = 0;
virtual u32 get_gsi_base() const = 0;
virtual u16 get_isr() const = 0;
virtual u16 get_irr() const = 0;
virtual const char* model() const = 0;
virtual IRQControllerType type() const = 0;
protected:
IRQController() {}
virtual void initialize() = 0;
bool m_enabled { false };
bool m_hard_disabled { false };
};
}