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40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Types.h>
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#include <Kernel/Interrupts/IRQController.h>
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namespace Kernel {
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class PIC final : public IRQController {
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public:
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PIC();
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virtual void enable(const GenericInterruptHandler&) override;
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virtual void disable(const GenericInterruptHandler&) override;
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virtual void hard_disable() override;
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virtual void eoi(const GenericInterruptHandler&) const override;
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virtual bool is_vector_enabled(u8 number) const override;
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virtual bool is_enabled() const override;
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virtual void spurious_eoi(const GenericInterruptHandler&) const override;
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virtual u16 get_isr() const override;
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virtual u16 get_irr() const override;
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virtual u32 gsi_base() const override { return 0; }
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virtual size_t interrupt_vectors_count() const override { return 16; }
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virtual StringView model() const override { return "Dual i8259"sv; }
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virtual IRQControllerType type() const override { return IRQControllerType::i8259; }
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private:
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u16 m_cached_irq_mask { 0xffff };
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void eoi_interrupt(u8 irq) const;
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void enable_vector(u8 number);
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void remap(u8 offset);
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void complete_eoi() const;
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virtual void initialize() override;
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};
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}
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