mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 23:50:19 +00:00
7c0540a229
This has KString, KBuffer, DoubleBuffer, KBufferBuilder, IOWindow, UserOrKernelBuffer and ScopedCritical classes being moved to the Kernel/Library subdirectory. Also, move the panic and assertions handling code to that directory.
103 lines
3 KiB
C++
103 lines
3 KiB
C++
/*
|
|
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <Kernel/Arch/InterruptManagement.h>
|
|
#include <Kernel/Debug.h>
|
|
#include <Kernel/Interrupts/IRQHandler.h>
|
|
#include <Kernel/Interrupts/SharedIRQHandler.h>
|
|
#include <Kernel/Library/Assertions.h>
|
|
#include <Kernel/Sections.h>
|
|
|
|
namespace Kernel {
|
|
|
|
UNMAP_AFTER_INIT void SharedIRQHandler::initialize(u8 interrupt_number)
|
|
{
|
|
auto* handler = new SharedIRQHandler(interrupt_number);
|
|
handler->register_interrupt_handler();
|
|
handler->disable_interrupt_vector();
|
|
}
|
|
|
|
void SharedIRQHandler::register_handler(GenericInterruptHandler& handler)
|
|
{
|
|
dbgln_if(INTERRUPT_DEBUG, "Interrupt Handler registered @ Shared Interrupt Handler {}", interrupt_number());
|
|
m_handlers.with([&handler](auto& list) { list.append(handler); });
|
|
enable_interrupt_vector();
|
|
}
|
|
void SharedIRQHandler::unregister_handler(GenericInterruptHandler& handler)
|
|
{
|
|
dbgln_if(INTERRUPT_DEBUG, "Interrupt Handler unregistered @ Shared Interrupt Handler {}", interrupt_number());
|
|
m_handlers.with([&handler, this](auto& list) {
|
|
list.remove(handler);
|
|
if (list.is_empty())
|
|
disable_interrupt_vector();
|
|
});
|
|
}
|
|
|
|
bool SharedIRQHandler::eoi()
|
|
{
|
|
dbgln_if(INTERRUPT_DEBUG, "EOI IRQ {}", interrupt_number());
|
|
m_responsible_irq_controller->eoi(*this);
|
|
return true;
|
|
}
|
|
|
|
void SharedIRQHandler::enumerate_handlers(Function<void(GenericInterruptHandler&)>& callback)
|
|
{
|
|
m_handlers.for_each([&](auto& handler) { callback(handler); });
|
|
}
|
|
|
|
SharedIRQHandler::SharedIRQHandler(u8 irq)
|
|
: GenericInterruptHandler(irq)
|
|
, m_responsible_irq_controller(InterruptManagement::the().get_responsible_irq_controller(irq))
|
|
{
|
|
dbgln_if(INTERRUPT_DEBUG, "Shared Interrupt Handler registered @ {}", interrupt_number());
|
|
}
|
|
|
|
SharedIRQHandler::~SharedIRQHandler()
|
|
{
|
|
dbgln_if(INTERRUPT_DEBUG, "Shared Interrupt Handler unregistered @ {}", interrupt_number());
|
|
disable_interrupt_vector();
|
|
}
|
|
|
|
bool SharedIRQHandler::handle_interrupt(RegisterState const& regs)
|
|
{
|
|
VERIFY_INTERRUPTS_DISABLED();
|
|
|
|
if constexpr (INTERRUPT_DEBUG) {
|
|
dbgln("Interrupt @ {}", interrupt_number());
|
|
dbgln("Interrupt Handlers registered - {}", sharing_devices_count());
|
|
}
|
|
int i = 0;
|
|
bool was_handled = false;
|
|
m_handlers.for_each([&](auto& handler) {
|
|
dbgln_if(INTERRUPT_DEBUG, "Going for Interrupt Handling @ {}, Shared Interrupt {}", i, interrupt_number());
|
|
if (handler.handle_interrupt(regs)) {
|
|
handler.increment_call_count();
|
|
was_handled = true;
|
|
}
|
|
dbgln_if(INTERRUPT_DEBUG, "Going for Interrupt Handling @ {}, Shared Interrupt {} - End", i, interrupt_number());
|
|
i++;
|
|
});
|
|
|
|
return was_handled;
|
|
}
|
|
|
|
void SharedIRQHandler::enable_interrupt_vector()
|
|
{
|
|
if (m_enabled)
|
|
return;
|
|
m_enabled = true;
|
|
m_responsible_irq_controller->enable(*this);
|
|
}
|
|
|
|
void SharedIRQHandler::disable_interrupt_vector()
|
|
{
|
|
if (!m_enabled)
|
|
return;
|
|
m_enabled = false;
|
|
m_responsible_irq_controller->disable(*this);
|
|
}
|
|
|
|
}
|