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62 lines
1.4 KiB
C++
62 lines
1.4 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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#include <Kernel/Arch/x86/CPU.h>
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#include <Kernel/Debug.h>
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#include <Kernel/Interrupts/IRQHandler.h>
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#include <Kernel/Interrupts/InterruptManagement.h>
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namespace Kernel {
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IRQHandler::IRQHandler(u8 irq)
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: GenericInterruptHandler(irq)
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, m_responsible_irq_controller(InterruptManagement::the().get_responsible_irq_controller(irq))
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{
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disable_irq();
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}
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IRQHandler::~IRQHandler()
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{
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}
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bool IRQHandler::eoi()
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{
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dbgln_if(IRQ_DEBUG, "EOI IRQ {}", interrupt_number());
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if (!m_shared_with_others) {
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VERIFY(!m_responsible_irq_controller.is_null());
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m_responsible_irq_controller->eoi(*this);
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return true;
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}
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return false;
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}
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void IRQHandler::enable_irq()
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{
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dbgln_if(IRQ_DEBUG, "Enable IRQ {}", interrupt_number());
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if (!is_registered())
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register_interrupt_handler();
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m_enabled = true;
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if (!m_shared_with_others)
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m_responsible_irq_controller->enable(*this);
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}
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void IRQHandler::disable_irq()
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{
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dbgln_if(IRQ_DEBUG, "Disable IRQ {}", interrupt_number());
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m_enabled = false;
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if (!m_shared_with_others)
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m_responsible_irq_controller->disable(*this);
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}
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void IRQHandler::change_irq_number(u8 irq)
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{
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InterruptDisabler disabler;
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change_interrupt_number(irq);
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m_responsible_irq_controller = InterruptManagement::the().get_responsible_irq_controller(irq);
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}
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}
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