RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-10-31 06:52:45 +00:00
Code Issues Activity Actions

Kernel/Storage: Move AHCI and IDE code into new subdirectories

Browse source 
We do that to increase clarity of the major and secondary components in
the subsystem. To ensure it's even more understandable, we rename the
files to better represent the class within them and to remove redundancy
in the name.

Also, some includes are removed from the general components of the ATA
components' classes.
This commit is contained in:
Liav A 2021-11-19 11:52:07 +02:00 • committed by Linus Groh
parent a70e1a0340
commit c001e3f567
23 changed files with 37 additions and 43 deletions
Download patch file Download diff file Expand all files Collapse all files

55
Kernel/Storage/ATA/AHCI/InterruptHandler.cpp Normal file
View file

@ -0,0 +1,55 @@
/*
* Copyright (c) 2021-2022, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Storage/ATA/AHCI/InterruptHandler.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;
}
}