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Kernel/Storage: Rename AHCIPortHandler => AHCIInterruptHandler

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This reflects better what this object is all about - handling interrupts
of AHCI ports, and nothing more than that.
This commit is contained in:
Liav A 2022-04-01 23:48:46 +03:00 • committed by Idan Horowitz
parent cc734c106e
commit bf82c4b81b
6 changed files with 23 additions and 23 deletions
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55
Kernel/Storage/ATA/AHCIInterruptHandler.cpp Normal file
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/*
* Copyright (c) 2021-2022, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Storage/ATA/AHCIInterruptHandler.h>
namespace Kernel {
UNMAP_AFTER_INIT ErrorOr<NonnullOwnPtr<AHCIInterruptHandler>> AHCIInterruptHandler::create(AHCIController& controller, u8 irq, AHCI::MaskedBitField taken_ports)
{
auto port_handler = TRY(adopt_nonnull_own_or_enomem(new (nothrow) AHCIInterruptHandler(controller, irq, taken_ports)));
port_handler->allocate_resources_and_initialize_ports();
return port_handler;
}
void AHCIInterruptHandler::allocate_resources_and_initialize_ports()
{
// Clear pending interrupts, if there are any!
m_pending_ports_interrupts.set_all();
enable_irq();
}
UNMAP_AFTER_INIT AHCIInterruptHandler::AHCIInterruptHandler(AHCIController& controller, u8 irq, AHCI::MaskedBitField taken_ports)
: IRQHandler(irq)
, m_parent_controller(controller)
, m_taken_ports(taken_ports)
, m_pending_ports_interrupts(create_pending_ports_interrupts_bitfield())
{
dbgln_if(AHCI_DEBUG, "AHCI Port Handler: IRQ {}", irq);
}
AHCI::MaskedBitField AHCIInterruptHandler::create_pending_ports_interrupts_bitfield() const
{
return AHCI::MaskedBitField((u32 volatile&)m_parent_controller->hba().control_regs.is, m_taken_ports.bit_mask());
}
AHCIInterruptHandler::~AHCIInterruptHandler() = default;
bool AHCIInterruptHandler::handle_irq(RegisterState const&)
{
dbgln_if(AHCI_DEBUG, "AHCI Port Handler: IRQ received");
if (m_pending_ports_interrupts.is_zeroed())
return false;
for (auto port_index : m_pending_ports_interrupts.to_vector()) {
dbgln_if(AHCI_DEBUG, "AHCI Port Handler: Handling IRQ for port {}", port_index);
m_parent_controller->handle_interrupt_for_port({}, port_index);
// We do this to clear the pending interrupt after we handled it.
m_pending_ports_interrupts.set_at(port_index);
}
return true;
}
}