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82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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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/Function.h>
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#include <AK/NonnullOwnPtr.h>
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#include <AK/OwnPtr.h>
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#include <AK/RefCounted.h>
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#include <AK/RefPtr.h>
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#include <AK/Types.h>
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#include <Kernel/Firmware/ACPI/Definitions.h>
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#include <Kernel/Interrupts/GenericInterruptHandler.h>
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#include <Kernel/Interrupts/IOAPIC.h>
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#include <Kernel/Interrupts/IRQController.h>
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namespace Kernel {
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class ISAInterruptOverrideMetadata {
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public:
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ISAInterruptOverrideMetadata(u8 bus, u8 source, u32 global_system_interrupt, u16 flags)
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: m_bus(bus)
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, m_source(source)
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, m_global_system_interrupt(global_system_interrupt)
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, m_flags(flags)
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{
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}
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u8 bus() const { return m_bus; }
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u8 source() const { return m_source; }
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u32 gsi() const { return m_global_system_interrupt; }
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u16 flags() const { return m_flags; }
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private:
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const u8 m_bus;
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const u8 m_source;
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const u32 m_global_system_interrupt;
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const u16 m_flags;
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};
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class InterruptManagement {
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public:
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static InterruptManagement& the();
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static void initialize();
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static bool initialized();
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static u8 acquire_mapped_interrupt_number(u8 original_irq);
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static u8 acquire_irq_number(u8 mapped_interrupt_vector);
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virtual void switch_to_pic_mode();
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virtual void switch_to_ioapic_mode();
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bool smp_enabled() const { return m_smp_enabled; }
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RefPtr<IRQController> get_responsible_irq_controller(u8 interrupt_vector);
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RefPtr<IRQController> get_responsible_irq_controller(IRQControllerType controller_type, u8 interrupt_vector);
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Vector<ISAInterruptOverrideMetadata> const& isa_overrides() const { return m_isa_interrupt_overrides; }
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u8 get_mapped_interrupt_vector(u8 original_irq);
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u8 get_irq_vector(u8 mapped_interrupt_vector);
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void enumerate_interrupt_handlers(Function<void(GenericInterruptHandler&)>);
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IRQController& get_interrupt_controller(int index);
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protected:
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virtual ~InterruptManagement() = default;
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private:
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InterruptManagement();
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PhysicalAddress search_for_madt();
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void locate_apic_data();
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bool m_smp_enabled { false };
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Vector<RefPtr<IRQController>> m_interrupt_controllers;
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Vector<ISAInterruptOverrideMetadata> m_isa_interrupt_overrides;
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Vector<PCIInterruptOverrideMetadata> m_pci_interrupt_overrides;
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PhysicalAddress m_madt;
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};
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}
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