2020-02-22 17:40:15 +00:00
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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2021-04-22 08:24:48 +00:00
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* SPDX-License-Identifier: BSD-2-Clause
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2020-02-22 17:40:15 +00:00
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*/
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2022-05-30 07:04:37 +00:00
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#include <Kernel/Arch/InterruptManagement.h>
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2021-01-25 15:07:10 +00:00
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#include <Kernel/Debug.h>
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2020-02-22 17:40:15 +00:00
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#include <Kernel/Interrupts/IRQHandler.h>
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2023-02-24 18:33:43 +00:00
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#include <Kernel/Interrupts/InterruptDisabler.h>
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2020-02-22 17:40:15 +00:00
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namespace Kernel {
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IRQHandler::IRQHandler(u8 irq)
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: GenericInterruptHandler(irq)
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2020-02-28 20:33:41 +00:00
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, m_responsible_irq_controller(InterruptManagement::the().get_responsible_irq_controller(irq))
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2020-02-22 17:40:15 +00:00
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{
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2022-01-27 11:03:28 +00:00
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if (is_registered())
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disable_irq();
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2020-02-22 17:40:15 +00:00
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}
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2022-03-16 19:15:15 +00:00
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IRQHandler::~IRQHandler() = default;
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2020-02-22 17:40:15 +00:00
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bool IRQHandler::eoi()
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{
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2021-02-07 12:03:24 +00:00
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dbgln_if(IRQ_DEBUG, "EOI IRQ {}", interrupt_number());
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2020-02-22 17:40:15 +00:00
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if (!m_shared_with_others) {
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2020-03-08 10:47:33 +00:00
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m_responsible_irq_controller->eoi(*this);
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2020-02-22 17:40:15 +00:00
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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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2021-02-07 12:03:24 +00:00
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dbgln_if(IRQ_DEBUG, "Enable IRQ {}", interrupt_number());
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2021-02-27 00:17:57 +00:00
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if (!is_registered())
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register_interrupt_handler();
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2020-03-20 20:27:53 +00:00
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m_enabled = true;
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2020-02-22 17:40:15 +00:00
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if (!m_shared_with_others)
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2020-03-08 10:47:33 +00:00
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m_responsible_irq_controller->enable(*this);
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2020-02-22 17:40:15 +00:00
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}
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void IRQHandler::disable_irq()
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{
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2021-02-07 12:03:24 +00:00
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dbgln_if(IRQ_DEBUG, "Disable IRQ {}", interrupt_number());
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2020-03-20 20:27:53 +00:00
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m_enabled = false;
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2020-02-22 17:40:15 +00:00
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if (!m_shared_with_others)
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2020-03-08 10:47:33 +00:00
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m_responsible_irq_controller->disable(*this);
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2020-02-22 17:40:15 +00:00
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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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2020-02-28 20:33:41 +00:00
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m_responsible_irq_controller = InterruptManagement::the().get_responsible_irq_controller(irq);
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2020-02-22 17:40:15 +00:00
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}
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}
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