mirror of
https://github.com/SerenityOS/serenity
synced 2024-10-04 15:09:40 +00:00
68c3f9aa5a
This class is part of the PCI code so let's move it to the PCI namespace like other handling code parts of the PCI bus.
72 lines
1.7 KiB
C++
72 lines
1.7 KiB
C++
/*
|
|
* 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::PCI {
|
|
|
|
IRQHandler::IRQHandler(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 IRQHandler::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 IRQHandler::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 IRQHandler::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());
|
|
}
|
|
|
|
bool IRQHandler::handle_interrupt(RegisterState const& regs)
|
|
{
|
|
return handle_irq(regs);
|
|
}
|
|
|
|
}
|