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/*
* Copyright (c) 2023, Pankaj R <dev@pankajraghav.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Arch/InterruptManagement.h>
#include <Kernel/Arch/PCIMSI.h>
#include <Kernel/Debug.h>
#include <Kernel/Interrupts/PCIIRQHandler.h>
namespace Kernel {
PCIIRQHandler::PCIIRQHandler(PCI::Device& device, u8 irq)
: GenericInterruptHandler(irq)
, device(device)
{
auto type = device.get_interrupt_type();
if (type == PCI::InterruptType::PIN)
m_responsible_irq_controller = InterruptManagement::the().get_responsible_irq_controller(irq);
if (is_registered())
disable_irq();
}
bool PCIIRQHandler::eoi()
{
dbgln_if(IRQ_DEBUG, "EOI IRQ {}", interrupt_number());
if (m_shared_with_others)
return false;
if (!m_responsible_irq_controller.is_null())
m_responsible_irq_controller->eoi(*this);
else
msi_signal_eoi();
return true;
}
void PCIIRQHandler::enable_irq()
{
dbgln_if(IRQ_DEBUG, "Enable IRQ {}", interrupt_number());
if (!is_registered())
register_interrupt_handler();
m_enabled = true;
if (m_shared_with_others)
return;
if (!m_responsible_irq_controller.is_null())
m_responsible_irq_controller->enable(*this);
else
device.enable_interrupt(interrupt_number());
}
void PCIIRQHandler::disable_irq()
{
dbgln_if(IRQ_DEBUG, "Disable IRQ {}", interrupt_number());
m_enabled = false;
if (m_shared_with_others)
return;
if (!m_responsible_irq_controller.is_null())
m_responsible_irq_controller->disable(*this);
else
device.disable_interrupt(interrupt_number());
}
}
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