mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-30 08:41:15 +00:00
f085903f62
These 2 classes currently contain much code that is x86(_64) specific. Move them to the architecture specific directory. This also allows for a simpler implementation for aarch64.
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Types.h>
|
|
#include <Kernel/Arch/x86/IRQController.h>
|
|
|
|
namespace Kernel {
|
|
|
|
static constexpr size_t pic_disabled_vector_base = 0x20;
|
|
static constexpr size_t pic_disabled_vector_end = 0x2f;
|
|
|
|
class PIC final : public IRQController {
|
|
public:
|
|
PIC();
|
|
virtual void enable(GenericInterruptHandler const&) override;
|
|
virtual void disable(GenericInterruptHandler const&) override;
|
|
virtual void hard_disable() override;
|
|
virtual void eoi(GenericInterruptHandler const&) const override;
|
|
virtual bool is_vector_enabled(u8 number) const override;
|
|
virtual bool is_enabled() const override;
|
|
virtual void spurious_eoi(GenericInterruptHandler const&) const override;
|
|
virtual u16 get_isr() const override;
|
|
virtual u16 get_irr() const override;
|
|
virtual u32 gsi_base() const override { return 0; }
|
|
virtual size_t interrupt_vectors_count() const override { return 16; }
|
|
virtual StringView model() const override { return "Dual i8259"sv; }
|
|
virtual IRQControllerType type() const override { return IRQControllerType::i8259; }
|
|
|
|
private:
|
|
u16 m_cached_irq_mask { 0xffff };
|
|
void eoi_interrupt(u8 irq) const;
|
|
void enable_vector(u8 number);
|
|
void remap(u8 offset);
|
|
void complete_eoi() const;
|
|
virtual void initialize() override;
|
|
};
|
|
|
|
}
|