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Kernel/Storage: Move all ATA related code to a new subdirectory

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Like what happened with the PCI and USB code, this feels like the right
thing to do because we can improve on the ATA capabilities and keep it
distinguished from the rest of the subsystem.
This commit is contained in:
Liav A 2021-11-13 10:19:31 +02:00 • committed by Andreas Kling
parent 648a139af3
commit 4dc3617f3c
23 changed files with 50 additions and 50 deletions
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55
Kernel/Storage/ATA/BMIDEChannel.h Normal file
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/*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/OwnPtr.h>
#include <Kernel/Storage/ATA/IDEChannel.h>
namespace Kernel {
class AsyncBlockDeviceRequest;
struct [[gnu::packed]] PhysicalRegionDescriptor {
u32 offset;
u16 size { 0 };
u16 end_of_table { 0 };
};
class IDEController;
class BMIDEChannel final : public IDEChannel {
friend class IDEController;
friend class PATADiskDevice;
public:
static NonnullRefPtr<BMIDEChannel> create(const IDEController&, IDEChannel::IOAddressGroup, IDEChannel::ChannelType type);
static NonnullRefPtr<BMIDEChannel> create(const IDEController&, u8 irq, IDEChannel::IOAddressGroup, IDEChannel::ChannelType type);
virtual ~BMIDEChannel() override {};
virtual bool is_dma_enabled() const override { return true; };
private:
BMIDEChannel(const IDEController&, IDEChannel::IOAddressGroup, IDEChannel::ChannelType type);
BMIDEChannel(const IDEController&, u8 irq, IDEChannel::IOAddressGroup, IDEChannel::ChannelType type);
void initialize();
void complete_current_request(AsyncDeviceRequest::RequestResult);
//^ IRQHandler
virtual bool handle_irq(const RegisterState&) override;
//* IDEChannel
virtual void send_ata_io_command(LBAMode lba_mode, Direction direction) const override;
virtual void ata_read_sectors(bool, u16) override;
virtual void ata_write_sectors(bool, u16) override;
PhysicalRegionDescriptor& prdt() { return *reinterpret_cast<PhysicalRegionDescriptor*>(m_prdt_region->vaddr().as_ptr()); }
OwnPtr<Memory::Region> m_prdt_region;
OwnPtr<Memory::Region> m_dma_buffer_region;
RefPtr<Memory::PhysicalPage> m_prdt_page;
RefPtr<Memory::PhysicalPage> m_dma_buffer_page;
};
}