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https://github.com/RGBCube/serenity
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500b7b08d6
The Storage subsystem, like the Audio and HID subsystems, exposes Unix device files (for example, in the /dev directory). To ensure consistency across the repository, we should make the Storage subsystem to reside in the Kernel/Devices directory like the two other mentioned subsystems.
56 lines
2.1 KiB
C++
56 lines
2.1 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/OwnPtr.h>
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#include <AK/Types.h>
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#include <Kernel/Arch/x86_64/ISABus/IDEController.h>
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#include <Kernel/Bus/PCI/API.h>
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#include <Kernel/Devices/Storage/ATA/ATADiskDevice.h>
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#include <Kernel/Devices/Storage/ATA/GenericIDE/Channel.h>
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#include <Kernel/Library/LockRefPtr.h>
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#include <Kernel/Sections.h>
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namespace Kernel {
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UNMAP_AFTER_INIT ErrorOr<NonnullRefPtr<ISAIDEController>> ISAIDEController::initialize()
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{
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auto controller = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) ISAIDEController()));
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TRY(controller->initialize_channels());
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return controller;
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}
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UNMAP_AFTER_INIT ISAIDEController::ISAIDEController()
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{
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}
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UNMAP_AFTER_INIT ErrorOr<void> ISAIDEController::initialize_channels()
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{
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auto primary_base_io_window = TRY(IOWindow::create_for_io_space(IOAddress(0x1F0), 8));
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auto primary_control_io_window = TRY(IOWindow::create_for_io_space(IOAddress(0x3F6), 4));
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auto secondary_base_io_window = TRY(IOWindow::create_for_io_space(IOAddress(0x170), 8));
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auto secondary_control_io_window = TRY(IOWindow::create_for_io_space(IOAddress(0x376), 4));
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auto initialize_and_enumerate = [](IDEChannel& channel) -> ErrorOr<void> {
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TRY(channel.allocate_resources_for_isa_ide_controller({}));
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TRY(channel.detect_connected_devices());
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return {};
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};
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auto primary_channel_io_window_group = IDEChannel::IOWindowGroup { move(primary_base_io_window), move(primary_control_io_window) };
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auto secondary_channel_io_window_group = IDEChannel::IOWindowGroup { move(secondary_base_io_window), move(secondary_control_io_window) };
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m_channels[0] = TRY(IDEChannel::create(*this, move(primary_channel_io_window_group), IDEChannel::ChannelType::Primary));
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TRY(initialize_and_enumerate(*m_channels[0]));
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m_channels[0]->enable_irq();
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m_channels[1] = TRY(IDEChannel::create(*this, move(secondary_channel_io_window_group), IDEChannel::ChannelType::Secondary));
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TRY(initialize_and_enumerate(*m_channels[1]));
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m_channels[1]->enable_irq();
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dbgln("ISA IDE controller detected and initialized");
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return {};
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}
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}
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