mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 19:47:44 +00:00
Kernel: Add the PIC class
This class inherits from IRQController class, and represents the common Intel 8259 PIC chip.
This commit is contained in:
parent
b56afbea17
commit
7d59a67504
2 changed files with 266 additions and 0 deletions
53
Kernel/Interrupts/PIC.h
Normal file
53
Kernel/Interrupts/PIC.h
Normal file
|
@ -0,0 +1,53 @@
|
|||
/*
|
||||
* 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/Types.h>
|
||||
#include <Kernel/Interrupts/IRQController.h>
|
||||
|
||||
namespace Kernel {
|
||||
class PIC final : public IRQController {
|
||||
public:
|
||||
PIC();
|
||||
virtual void enable(u8 number) override;
|
||||
virtual void disable(u8 number) override;
|
||||
virtual void hard_disable() override;
|
||||
virtual void eoi(u8 number) const override;
|
||||
virtual bool is_vector_enabled(u8 number) const override;
|
||||
virtual u16 get_isr() const override;
|
||||
virtual u16 get_irr() const override;
|
||||
virtual u32 get_gsi_base() const override { return 0; }
|
||||
virtual const char* model() const override { return "Dual Intel 8259"; }
|
||||
virtual IRQControllerType type() const override { return IRQControllerType::i8259; }
|
||||
|
||||
private:
|
||||
void remap(u8 offset);
|
||||
void complete_eoi() const;
|
||||
virtual void initialize() override;
|
||||
};
|
||||
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue