#include <AtaDisk.h>

Inheritance diagram for AtaDisk:

Collaboration diagram for AtaDisk:

Classes
struct	Buffer

class	IrqCompletion

Public Member Functions
	AtaDisk (class AtaController pDev, bool isMaster, IoBase commandRegs, IoBase controlRegs, BusMasterIde busMaster=0)

void	shutdownDeviceCache () override

virtual void	getName (String &str)

bool	initialise (size_t nUnit=~0)

virtual uint64_t	doRead (uint64_t location)

virtual uint64_t	doWrite (uint64_t location)

virtual uint64_t	doSync (uint64_t location)

PagingStatus	preparePagingTransport (PagingTransport *&transport) override

PagingStatus	doPagingTransfer (PagingOperation operation, uint64_t offset, void *page) override

virtual void	irqReceived ()

void	maskInterrupts ()

void	stopDma ()

virtual BusMasterIde *	getBusMaster () const

virtual size_t	getSize () const
	Gets the size of the disk.

virtual size_t	getBlockSize () const
	Gets the preferred I/O extent of the disk.

virtual size_t	getNativeBlockSize () const

virtual size_t	getBlockCount () const

virtual bool	sendCommand (size_t nUnit, uintptr_t pCommand, uint8_t nCommandSize, uintptr_t pRespBuffer, uint16_t nRespBytes, bool bWrite)

virtual MUST_USE_RESULT uint64_t	doWriteDirect (uint64_t location, uintptr_t page)

Public Member Functions inherited from ScsiDisk
	ScsiDisk (size_t cacheConstraints=PhysicalMemoryManager::below4GB)

void	shutdownCache (bool deviceAvailable=true)

bool	hasNoCacheLoans ()

bool	initialise (class ScsiController *pController, size_t nUnit)

virtual BufferView	read (uint64_t location)

bool	readInto (uint64_t location, void *buffer, size_t length) override

bool	readIntoBatch (ReadBuffer *buffers, size_t count) override

bool	writeFrom (uint64_t location, const void *buffer, size_t length) override

bool	writeFromBatch (WriteBuffer *buffers, size_t count) override

bool	syncData () override

virtual void	write (uint64_t location)

virtual void	flush (uint64_t location)
	Flush a cached page to disk.

virtual bool	sync (uint64_t location, bool async)

virtual MUST_USE_RESULT bool	syncAll ()

bool	zero (uint64_t location, size_t length) override

bool	syncPages (const uint64_t *locations, size_t count) override

virtual MUST_USE_RESULT bool	retireCachePage (uint64_t location)

virtual void	align (uint64_t location)
	Sets the page boundary alignment after a specific location on the disk.

virtual uint64_t	doWriteDirectPhysical (uint64_t location, uintptr_t page, physical_uintptr_t physical)

virtual bool	pin (uint64_t location)
	Pins a cache page.

virtual void	unpin (uint64_t location)

Public Member Functions inherited from Disk
	Disk (Device *p)

virtual Disk *	physicalDisk ()

bool	acquireUse (DiskUse &use)

uint32_t	endpointId ()

virtual bool	getPartitionUuid (String &uuid) const

virtual bool	getPartitionLabel (String &label) const

void	retireEndpoint ()

bool	tryCloseEndpoint ()

void	reopenEndpoint ()

virtual Type	getType ()

virtual SubType	getSubType ()

virtual void	dump (String &str)

virtual DiskReadView	readView (uint64_t location)

virtual DiskWriteView	writeView (uint64_t location)

MUST_USE_RESULT bool	readViews (uint64_t location, size_t length, BufferViewSequence &views)

void	unpinViews (uint64_t location, BufferViewSequence &views)

virtual bool	cacheIsCritical ()
	Whether or not the cache is critical and cannot be flushed or deleted.

Public Member Functions inherited from Device
	Device (Device *p)

Device *	getParent () const

void	setParent (Device *p)

virtual const String &	getSpecificType ()

virtual void	setSpecificType (String str)

void	setPciPosition (uint32_t bus, uint32_t device, uint32_t func)

void	setPciIdentifiers (uint8_t classCode, uint8_t subclassCode, uint16_t vendorId, uint16_t deviceId, uint8_t progIf)

void	setPciConfigHeader (const PciBus::ConfigSpace &space)

PciBus::ConfigSpace	getPciConfigHeader () const

uint8_t	getPciClassCode ()

uint8_t	getPciSubclassCode ()

uint16_t	getPciVendorId ()

uint16_t	getPciDeviceId ()

uint8_t	getPciProgInterface ()

uint32_t	getPciBusPosition ()

uint32_t	getPciDevicePosition ()

uint32_t	getPciFunctionNumber ()

Device *	getPhysicalFunction () const

size_t	getVirtualFunctionIndex () const

void	setVirtualFunction (Device *physicalFunction, size_t index)

virtual Vector< Address * > &	addresses ()

virtual uintptr_t	getInterruptNumber ()

virtual void	setInterruptNumber (uintptr_t n)

void	addChild (Device *pDevice)

Device *	getChild (size_t n)

size_t	getNumChildren ()

void	removeChild (size_t n)

void	removeChild (Device *d)

void	replaceChild (Device src, Device dest)

Private Types
enum	AtaDiskType { Block = 0x00 , Sequential = 0x01 , Printer = 0x02 , Processor = 0x03 , WriteOnce = 0x04 , CdDvd = 0x05 , OpticalMemory = 0x07 , MediumChanger = 0x08 , Raid = 0x0C , Enclosure = 0x0D , None = 0x1F , NotPacket = 0xFF }

Private Member Functions
void	preparePagingStorage ()

void	releasePagingStorage ()

virtual size_t	getCacheFillSize () const

void	setupLBA28 (uint64_t n, uint32_t nSectors)

void	setupLBA48 (uint64_t n, uint32_t nSectors)

virtual size_t	defaultBlockSize ()

uint64_t	writePageBuffer (uint64_t location, uintptr_t page)

void	setFeatures (uint8_t command, uint8_t countreg, uint8_t lowreg, uint8_t midreg, uint8_t hireg)

Private Attributes
AtaPagingTransport *	m_Paging

bool	m_IsMaster

IdentifyData	m_pIdent

char	m_pName [64]

char	m_pSerialNumber [64]

char	m_pFirmwareRevision [64]

bool	m_SupportsLBA28

bool	m_SupportsLBA48

size_t	m_BlockSize

Semaphore *	m_IrqReceived

Spinlock	m_IrqLock

AtaDiskType	m_AtaDiskType

uint8_t	m_PacketSize

bool	m_Removable

IoBase *	m_CommandRegs

IoBase *	m_ControlRegs

BusMasterIde *	m_BusMaster

Mutex	m_PrdTableLock

PhysicalRegionDescriptor *	m_PrdTable

size_t	m_LastPrdTableOffset

physical_uintptr_t	m_PrdTablePhys

MemoryRegion	m_PrdTableMemRegion

bool	m_bDma

Atomic< size_t >	m_IrqCount

Friends
class	AtaPagingTransport

Additional Inherited Members
Public Types inherited from Disk
enum	SubType { ATA = 0 , ATAPI }

Public Types inherited from Device
enum	Type { Generic , Root , Disk , Bus , Display , Network , Sound , Console , Mouse , Controller , UsbController , UsbGeneric , UsbContainer }

typedef Device (	Callback) (Device *)

Static Public Member Functions inherited from Device
static bool	treeLockHeldByCurrentThread ()

static void	foreach (Callback callback, Device *root=0)

template<class F , class... Args>
static void	foreach (pedigree_std::Callable< F > &callback, Device *root, Args... args)

static void	addToRoot (Device *device)

static void	searchByVendorId (uint16_t vendorId, void(callback)(Device ), Device *root=0)

static void	searchByVendorIdAndDeviceId (uint16_t vendorId, uint16_t deviceId, void(callback)(Device ), Device *root=0)

static void	searchByClass (uint16_t classCode, void(callback)(Device ), Device *root=0)

static void	searchByClassAndSubclass (uint16_t classCode, uint16_t subclassCode, void(callback)(Device ), Device *root=0)

static void	searchByClassSubclassAndProgInterface (uint16_t classCode, uint16_t subclassCode, uint8_t progInterface, void(callback)(Device ), Device *root=0)

Public Attributes inherited from ScsiDisk
struct ScsiDisk::Sense	PACKED

struct ScsiDisk::Inquiry	PACKED

struct ScsiDisk::Capacity	PACKED

Static Public Attributes inherited from ScsiDisk
static constexpr uint64_t	SyncWholeDevice = ~uint64_t{0}

Static Public Attributes inherited from Disk
static constexpr size_t	MaxReadBuffers = 32

static constexpr size_t	MaxWriteBuffers = 32

static constexpr size_t	MaxSyncPages = 64

Protected Member Functions inherited from ScsiDisk
BufferView	acquireView (uint64_t location, bool writable, uint64_t &token) override

void	releaseView (uint64_t token, bool writable) override

virtual bool	supportsBufferTransfers () const

virtual bool	supportsDirectCacheWrite () const

virtual Device *	dmaDevice () const

virtual bool	transferBuffer (uint64_t location, void *buffer, size_t length, bool writing)

virtual bool	transferReadBuffers (ReadBuffer *buffers, size_t count)

virtual bool	transferWriteBuffers (WriteBuffer *buffers, size_t count)

ScsiController *	acquirePagingController (OperationBarrier::Lease &use)

PagingStatus	preparePagingCache (PagingTransport &transport)

size_t	getCacheFillLength (uint64_t location) const

Cache &	getCache ()

Inquiry *	getInquiry () const

Protected Member Functions inherited from Disk
void	reserveEndpoint ()

void	publishEndpoint ()

Protected Member Functions inherited from Device
	NOT_COPYABLE_OR_ASSIGNABLE (Device)

Static Protected Member Functions inherited from ScsiDisk
static bool	syncCacheBatch (const Cache::WritebackPage pages, size_t count, void context)

Static Protected Member Functions inherited from Device
static Device &	root ()

Protected Attributes inherited from Device
Vector< Address * >	m_Addresses

Vector< Device * >	m_Children

Device *	m_pParent

Device *	m_PhysicalFunction

size_t	m_VirtualFunctionIndex

uintptr_t	m_InterruptNumber

String	m_SpecificType

PciBus::ConfigSpace	m_ConfigHeader

uint8_t	m_ClassCode

uint8_t	m_SubclassCode

uint16_t	m_VendorId

uint16_t	m_DeviceId

uint8_t	m_ProgInterface

uint32_t	m_PciBusPos

uint32_t	m_PciDevicePos

uint32_t	m_PciFunctionNum

Static Protected Attributes inherited from Device
static Device	m_Root

static Mutex	m_TreeLock

Detailed Description

An ATA device.

This could be anything from an ATAPI device (eg, CDROM) to a pure and simple IDE disk. We inherit ScsiDisk as it is needed for ATAPI. Non-ATAPI disks simply don't use the ScsiDisk interface.

Definition at line 46 of file AtaDisk.h.

Member Enumeration Documentation

◆ AtaDiskType

enum AtaDisk::AtaDiskType

private

Definition at line 76 of file AtaDisk.h.

Constructor & Destructor Documentation

◆ AtaDisk()

AtaDisk::AtaDisk	(	class AtaController *	pDev,
		bool	isMaster,
		IoBase *	commandRegs,
		IoBase *	controlRegs,
		BusMasterIde *	busMaster = `0`
	)

Definition at line 211 of file AtaDisk.cc.

◆ ~AtaDisk()

AtaDisk::~AtaDisk ( )

virtual

Definition at line 235 of file AtaDisk.cc.

Member Function Documentation

◆ defaultBlockSize()

virtual size_t AtaDisk::defaultBlockSize ( )

inlineprivatevirtual

Default block size for this device.

Reimplemented from ScsiDisk.

Definition at line 148 of file AtaDisk.h.

References m_AtaDiskType.

◆ doPagingTransfer()

PagingStatus AtaDisk::doPagingTransfer	(	PagingOperation	operation,
		uint64_t	offset,
		void *	page
	)

overridevirtual

Reimplemented from ScsiDisk.

Definition at line 118 of file AtaDisk-paging.cc.

◆ doRead()

uint64_t AtaDisk::doRead ( uint64_t location )

virtual

Todo:: getPageSize() here

Todo:: logical sector size here

Todo:: What's the best way to handle this?

Todo:: What's the best way to handle this?

Reimplemented from ScsiDisk.

Definition at line 844 of file AtaDisk.cc.

References Semaphore::acquireForCompletion(), ALIGN, AtaDisk::Buffer::buffer, ScsiDisk::doRead(), ScsiDisk::getCacheFillLength(), Device::getInterruptNumber(), ProcessorBase::getInterrupts(), BusMasterIde::hasCompleted(), BusMasterIde::hasError(), BusMasterIde::hasInterrupt(), Cache::insert(), Cache::lookup(), m_AtaDiskType, m_bDma, m_CommandRegs, m_IsMaster, m_pIdent, m_SupportsLBA48, AtaDisk::Buffer::offset, ProcessorBase::pause(), IoBase::read16(), Cache::release(), ProcessorBase::setInterrupts(), setupLBA28(), setupLBA48(), and IoBase::write8().

Referenced by IsaAtaController::executeRequest(), and PciAtaController::executeRequest().

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◆ doSync()

uint64_t AtaDisk::doSync ( uint64_t location )

virtual

Reimplemented from ScsiDisk.

Definition at line 1139 of file AtaDisk.cc.

◆ doWrite()

uint64_t AtaDisk::doWrite ( uint64_t location )

virtual

Todo:: might still want to allow writes - assuming CDROM here...

Reimplemented from ScsiDisk.

Definition at line 1089 of file AtaDisk.cc.

References m_AtaDiskType, panic(), Cache::release(), and writePageBuffer().

Referenced by IsaAtaController::executeRequest(), and PciAtaController::executeRequest().

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◆ doWriteDirect()

uint64_t AtaDisk::doWriteDirect	(	uint64_t	location,
		uintptr_t	page
	)

virtual

Writes one caller-borrowed page without acquiring cache ownership.

Reimplemented from ScsiDisk.

Definition at line 1124 of file AtaDisk.cc.

References m_AtaDiskType, and writePageBuffer().

Referenced by IsaAtaController::executeRequest(), and PciAtaController::executeRequest().

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◆ getBlockCount()

size_t AtaDisk::getBlockCount ( ) const

virtual

Reimplemented from ScsiDisk.

Definition at line 1486 of file AtaDisk.cc.

◆ getBlockSize()

size_t AtaDisk::getBlockSize ( ) const

virtual

Gets the preferred I/O extent of the disk.

This may describe a native device block or a larger cache-fill/readahead extent, depending on the implementation. It is independent of the cache page boundary reported by BufferView::size().

Reimplemented from ScsiDisk.

Definition at line 1457 of file AtaDisk.cc.

References ScsiDisk::getBlockSize(), m_AtaDiskType, and m_BlockSize.

◆ getBusMaster()

virtual BusMasterIde * AtaDisk::getBusMaster ( ) const

inlinevirtual

Retrieve the BusMaster IDE interface for this disk.

Definition at line 126 of file AtaDisk.h.

Referenced by PciAtaController::irq().

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◆ getCacheFillSize()

size_t AtaDisk::getCacheFillSize ( ) const

privatevirtual

Size of one cache fill performed by this implementation.

The generic path owns independently evictable target pages. A subclass may opt into a larger extent only when its doRead() handles partially populated extents page by page.

Reimplemented from ScsiDisk.

Definition at line 1464 of file AtaDisk.cc.

References ScsiDisk::getCacheFillSize(), m_AtaDiskType, and m_BlockSize.

◆ getName()

virtual void AtaDisk::getName ( String & str )

inlinevirtual

Stores the device's name in str.

Reimplemented from ScsiDisk.

Definition at line 97 of file AtaDisk.h.

References m_pName.

◆ getNativeBlockSize()

size_t AtaDisk::getNativeBlockSize ( ) const

virtual

Retrieves the native block size - that is, the logical block size. This differs from the preferred I/O/cache-fill extent.

Reimplemented from ScsiDisk.

Definition at line 1471 of file AtaDisk.cc.

References ScsiDisk::getNativeBlockSize(), m_AtaDiskType, and m_pIdent.

Referenced by preparePagingTransport(), and writePageBuffer().

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◆ getSize()

size_t AtaDisk::getSize ( ) const

virtual

Gets the size of the disk.

This is the size in bytes of the disk. Reads or writes beyond this size will fail.

Reimplemented from ScsiDisk.

Definition at line 1430 of file AtaDisk.cc.

References ScsiDisk::getSize(), m_AtaDiskType, m_pIdent, and m_SupportsLBA48.

Referenced by preparePagingTransport().

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◆ initialise()

bool AtaDisk::initialise ( size_t nUnit = ~0 )

Initialises the device and detects its features, if it is present.

Returns: True if the device is present and was successfully initialised.

Todo:: should check that this doesn't break on ATAPI

Todo:: Testing needs to be done on more than just CD/DVD and block devices...

Definition at line 258 of file AtaDisk.cc.

References Dec, Device::getInterruptNumber(), TargetInfo::getPageSize(), Hex, ScsiDisk::initialise(), m_AtaDiskType, m_bDma, m_BlockSize, m_CommandRegs, m_IsMaster, m_PacketSize, m_pFirmwareRevision, m_pIdent, m_pName, Device::m_pParent, m_pSerialNumber, m_Removable, m_SupportsLBA48, IoBase::read16(), IoBase::read8(), setFeatures(), and IoBase::write8().

◆ irqReceived()

void AtaDisk::irqReceived ( )

virtual

Called when an IRQ is received by the controller.

Definition at line 1361 of file AtaDisk.cc.

References m_IrqReceived, and Semaphore::release().

Referenced by IsaAtaController::irq(), and PciAtaController::irq().

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◆ maskInterrupts()

void AtaDisk::maskInterrupts ( )

Masks fresh device interrupts before controller IRQ removal.

Definition at line 245 of file AtaDisk.cc.

References IoBase::write8().

◆ preparePagingStorage()

void AtaDisk::preparePagingStorage ( )

private

Definition at line 81 of file AtaDisk-paging.cc.

◆ preparePagingTransport()

PagingStatus AtaDisk::preparePagingTransport ( PagingTransport *& transport )

overridevirtual

Called while the endpoint excludes new ordinary users.

Reimplemented from Disk.

Definition at line 92 of file AtaDisk-paging.cc.

References getNativeBlockSize(), getSize(), m_AtaDiskType, m_pIdent, and m_SupportsLBA48.

◆ releasePagingStorage()

void AtaDisk::releasePagingStorage ( )

private

Definition at line 87 of file AtaDisk-paging.cc.

◆ sendCommand()

bool AtaDisk::sendCommand	(	size_t	nUnit,
		uintptr_t	pCommand,
		uint8_t	nCommandSize,
		uintptr_t	pRespBuffer,
		uint16_t	nRespBytes,
		bool	bWrite
	)

virtual

Definition at line 617 of file AtaDisk.cc.

◆ setFeatures()

void AtaDisk::setFeatures	(	uint8_t	command,
		uint8_t	countreg,
		uint8_t	lowreg,
		uint8_t	midreg,
		uint8_t	hireg
	)

private

Performs the SET FEATURES command.

Definition at line 1414 of file AtaDisk.cc.

References m_CommandRegs, m_IsMaster, and IoBase::write8().

Referenced by initialise().

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◆ setupLBA28()

void AtaDisk::setupLBA28	(	uint64_t	n,
		uint32_t	nSectors
	)

private

Sets the drive up for reading from address 'n' in LBA28 mode.

Definition at line 1368 of file AtaDisk.cc.

References m_CommandRegs, m_IsMaster, and IoBase::write8().

Referenced by doRead(), and writePageBuffer().

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◆ setupLBA48()

void AtaDisk::setupLBA48	(	uint64_t	n,
		uint32_t	nSectors
	)

private

Sets the drive up for reading from address 'n' in LBA48 mode.

Definition at line 1391 of file AtaDisk.cc.

References m_CommandRegs, and IoBase::write8().

Referenced by doRead(), and writePageBuffer().

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◆ shutdownDeviceCache()

void AtaDisk::shutdownDeviceCache ( )

overridevirtual

Reimplemented from ScsiDisk.

Definition at line 239 of file AtaDisk.cc.

◆ stopDma()

void AtaDisk::stopDma ( )

Stops and acknowledges the bus-master channel after IRQ removal.

Definition at line 252 of file AtaDisk.cc.

References BusMasterIde::commandComplete().

◆ writePageBuffer()

uint64_t AtaDisk::writePageBuffer	(	uint64_t	location,
		uintptr_t	page
	)

private

Writes one supplied page through the native ATA data path.

Todo:: What's the best way to handle this?

Definition at line 1197 of file AtaDisk.cc.

References Semaphore::acquireForCompletion(), Device::getInterruptNumber(), ProcessorBase::getInterrupts(), getNativeBlockSize(), BusMasterIde::hasCompleted(), BusMasterIde::hasError(), BusMasterIde::hasInterrupt(), m_bDma, m_CommandRegs, m_IsMaster, m_pIdent, m_SupportsLBA48, ProcessorBase::pause(), ProcessorBase::setInterrupts(), setupLBA28(), setupLBA48(), and IoBase::write8().

Referenced by doWrite(), and doWriteDirect().

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Friends And Related Symbol Documentation

◆ AtaPagingTransport

friend class AtaPagingTransport

friend

Definition at line 48 of file AtaDisk.h.

Member Data Documentation

◆ m_AtaDiskType

AtaDiskType AtaDisk::m_AtaDiskType

private

What type of disk are we?

Definition at line 198 of file AtaDisk.h.

Referenced by defaultBlockSize(), doRead(), doWrite(), doWriteDirect(), getBlockSize(), getCacheFillSize(), getNativeBlockSize(), getSize(), initialise(), and preparePagingTransport().

◆ m_bDma

bool AtaDisk::m_bDma

private

Can we do DMA?

Definition at line 232 of file AtaDisk.h.

Referenced by doRead(), initialise(), and writePageBuffer().

◆ m_BlockSize

size_t AtaDisk::m_BlockSize

private

Block size in bytes for all read/write operations.

Definition at line 189 of file AtaDisk.h.

Referenced by getBlockSize(), getCacheFillSize(), and initialise().

◆ m_BusMaster

BusMasterIde* AtaDisk::m_BusMaster

private

Definition at line 213 of file AtaDisk.h.

◆ m_CommandRegs

IoBase* AtaDisk::m_CommandRegs

private

Command & control registers, and DMA access for this disk

Definition at line 211 of file AtaDisk.h.

Referenced by doRead(), initialise(), setFeatures(), setupLBA28(), setupLBA48(), and writePageBuffer().

◆ m_ControlRegs

IoBase* AtaDisk::m_ControlRegs

private

Definition at line 212 of file AtaDisk.h.

◆ m_IrqCount

Atomic<size_t> AtaDisk::m_IrqCount

private

IRQ count.

Definition at line 235 of file AtaDisk.h.

◆ m_IrqLock

Spinlock AtaDisk::m_IrqLock

private

Definition at line 195 of file AtaDisk.h.

◆ m_IrqReceived

Semaphore* AtaDisk::m_IrqReceived

private

A per-command completion released by the interrupt handler.

Definition at line 194 of file AtaDisk.h.

Referenced by irqReceived().

◆ m_IsMaster

bool AtaDisk::m_IsMaster

private

Is this the master device on the bus?

Definition at line 174 of file AtaDisk.h.

Referenced by doRead(), initialise(), setFeatures(), setupLBA28(), and writePageBuffer().

◆ m_LastPrdTableOffset

size_t AtaDisk::m_LastPrdTableOffset

private

Last used offset into the PRD table (so we can run multiple ops at once)

Definition at line 223 of file AtaDisk.h.

◆ m_PacketSize

uint8_t AtaDisk::m_PacketSize

private

Command packet size

Definition at line 201 of file AtaDisk.h.

Referenced by initialise().

◆ m_Paging

AtaPagingTransport* AtaDisk::m_Paging

private

Definition at line 51 of file AtaDisk.h.

◆ m_pFirmwareRevision

char AtaDisk::m_pFirmwareRevision[64]

private

The firmware revision

Definition at line 183 of file AtaDisk.h.

Referenced by initialise().

◆ m_pIdent

IdentifyData AtaDisk::m_pIdent

private

The result of the IDENTIFY command.

Definition at line 177 of file AtaDisk.h.

Referenced by doRead(), getNativeBlockSize(), getSize(), initialise(), preparePagingTransport(), and writePageBuffer().

◆ m_pName

char AtaDisk::m_pName[64]

private

The model name of the device.

Definition at line 179 of file AtaDisk.h.

Referenced by getName(), and initialise().

◆ m_PrdTable

PhysicalRegionDescriptor* AtaDisk::m_PrdTable

private

PRD table (virtual)

Definition at line 219 of file AtaDisk.h.

◆ m_PrdTableLock

Mutex AtaDisk::m_PrdTableLock

private

PRD table lock (only used when grabbing the offset)

Definition at line 216 of file AtaDisk.h.

◆ m_PrdTableMemRegion

MemoryRegion AtaDisk::m_PrdTableMemRegion

private

MemoryRegion for the PRD table

Definition at line 229 of file AtaDisk.h.

◆ m_PrdTablePhys

physical_uintptr_t AtaDisk::m_PrdTablePhys

private

PRD table (physical)

Definition at line 226 of file AtaDisk.h.

◆ m_pSerialNumber

char AtaDisk::m_pSerialNumber[64]

private

The serial number of the device.

Definition at line 181 of file AtaDisk.h.

Referenced by initialise().

◆ m_Removable

bool AtaDisk::m_Removable

private

Device flags

Definition at line 204 of file AtaDisk.h.

Referenced by initialise().

◆ m_SupportsLBA28

bool AtaDisk::m_SupportsLBA28

private

Does the device support LBA28?

Definition at line 185 of file AtaDisk.h.

◆ m_SupportsLBA48

bool AtaDisk::m_SupportsLBA48

private

Does the device support LBA48?

Definition at line 187 of file AtaDisk.h.

Referenced by doRead(), getSize(), initialise(), preparePagingTransport(), and writePageBuffer().

The documentation for this class was generated from the following files:

Classes

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ AtaDiskType

Constructor & Destructor Documentation

◆ AtaDisk()

◆ ~AtaDisk()

Member Function Documentation

◆ defaultBlockSize()

◆ doPagingTransfer()

◆ doRead()

◆ doSync()

◆ doWrite()

◆ doWriteDirect()

◆ getBlockCount()

◆ getBlockSize()

◆ getBusMaster()

◆ getCacheFillSize()

◆ getName()

◆ getNativeBlockSize()

◆ getSize()

◆ initialise()

◆ irqReceived()

◆ maskInterrupts()

◆ preparePagingStorage()

◆ preparePagingTransport()

◆ releasePagingStorage()

◆ sendCommand()

◆ setFeatures()

◆ setupLBA28()

◆ setupLBA48()

◆ shutdownDeviceCache()

◆ stopDma()

◆ writePageBuffer()

Friends And Related Symbol Documentation

◆ AtaPagingTransport

Member Data Documentation

◆ m_AtaDiskType

◆ m_bDma

◆ m_BlockSize

◆ m_BusMaster

◆ m_CommandRegs

◆ m_ControlRegs

◆ m_IrqCount

◆ m_IrqLock

◆ m_IrqReceived

◆ m_IsMaster

◆ m_LastPrdTableOffset

◆ m_PacketSize

◆ m_Paging

◆ m_pFirmwareRevision

◆ m_pIdent

◆ m_pName

◆ m_PrdTable

◆ m_PrdTableLock

◆ m_PrdTableMemRegion

◆ m_PrdTablePhys

◆ m_pSerialNumber

◆ m_Removable

◆ m_SupportsLBA28

◆ m_SupportsLBA48