IDE Disk device model. More...

#include <ide_disk.hh>

Inheritance diagram for IdeDisk:

Public Types
typedef IdeDiskParams	Params

Public Types inherited from SimObject
typedef SimObjectParams	Params

Public Member Functions
	IdeDisk (const Params *p)

	~IdeDisk ()
	Delete the data buffer. More...

void	reset (int id)
	Reset the device state. More...

void	regStats () override
	Register Statistics. More...

void	setController (IdeController *c, Addr page_bytes)
	Set the controller for this device. More...

void	readCommand (const Addr offset, int size, uint8_t *data)

void	readControl (const Addr offset, int size, uint8_t *data)

void	writeCommand (const Addr offset, int size, const uint8_t *data)

void	writeControl (const Addr offset, int size, const uint8_t *data)

void	startDma (const uint32_t &prdTableBase)

void	abortDma ()

Public Member Functions inherited from SimObject
const Params *	params () const

	SimObject (const Params *_params)

virtual	~SimObject ()

virtual const std::string	name () const

virtual void	init ()
	init() is called after all C++ SimObjects have been created and all ports are connected. More...

virtual void	loadState (CheckpointIn &cp)
	loadState() is called on each SimObject when restoring from a checkpoint. More...

virtual void	initState ()
	initState() is called on each SimObject when not restoring from a checkpoint. More...

virtual void	regProbePoints ()
	Register probe points for this object. More...

virtual void	regProbeListeners ()
	Register probe listeners for this object. More...

ProbeManager *	getProbeManager ()
	Get the probe manager for this object. More...

virtual Port &	getPort (const std::string &if_name, PortID idx=InvalidPortID)
	Get a port with a given name and index. More...

virtual void	startup ()
	startup() is the final initialization call before simulation. More...

DrainState	drain () override
	Provide a default implementation of the drain interface for objects that don't need draining. More...

virtual void	memWriteback ()
	Write back dirty buffers to memory using functional writes. More...

virtual void	memInvalidate ()
	Invalidate the contents of memory buffers. More...

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

Public Member Functions inherited from EventManager
EventQueue *	eventQueue () const

void	schedule (Event &event, Tick when)

void	deschedule (Event &event)

void	reschedule (Event &event, Tick when, bool always=false)

void	schedule (Event *event, Tick when)

void	deschedule (Event *event)

void	reschedule (Event *event, Tick when, bool always=false)

void	wakeupEventQueue (Tick when=(Tick) -1)
	This function is not needed by the usual gem5 event loop but may be necessary in derived EventQueues which host gem5 on other schedulers. More...

void	setCurTick (Tick newVal)

	EventManager (EventManager &em)
	Event manger manages events in the event queue. More...

	EventManager (EventManager *em)

	EventManager (EventQueue *eq)

Public Member Functions inherited from Serializable
	Serializable ()

virtual	~Serializable ()

void	serializeSection (CheckpointOut &cp, const char *name) const
	Serialize an object into a new section. More...

void	serializeSection (CheckpointOut &cp, const std::string &name) const

void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object. More...

void	unserializeSection (CheckpointIn &cp, const std::string &name)

Public Member Functions inherited from Drainable
DrainState	drainState () const
	Return the current drain state of an object. More...

virtual void	notifyFork ()
	Notify a child process of a fork. More...

Public Member Functions inherited from Stats::Group
	Group (Group parent, const char name=nullptr)
	Construct a new statistics group. More...

virtual	~Group ()

virtual void	resetStats ()
	Callback to reset stats. More...

virtual void	preDumpStats ()
	Callback before stats are dumped. More...

void	addStat (Stats::Info *info)
	Register a stat with this group. More...

const std::map< std::string, Group * > &	getStatGroups () const
	Get all child groups associated with this object. More...

const std::vector< Info * > &	getStats () const
	Get all stats associated with this object. More...

void	addStatGroup (const char name, Group block)
	Add a stat block as a child of this block. More...

const Info *	resolveStat (std::string name) const
	Resolve a stat by its name within this group. More...

	Group ()=delete

	Group (const Group &)=delete

Group &	operator= (const Group &)=delete

Protected Attributes
IdeController *	ctrl
	The IDE controller for this disk. More...

DiskImage *	image
	The image that contains the data of this disk. More...

int	diskDelay
	The disk delay in microseconds. More...

Protected Attributes inherited from SimObject
const SimObjectParams *	_params
	Cached copy of the object parameters. More...

Protected Attributes inherited from EventManager
EventQueue *	eventq
	A pointer to this object's event queue. More...

Private Member Functions
void	startCommand ()

void	intrPost ()

void	intrClear ()

void	doDmaTransfer ()

void	doDmaDataRead ()

void	doDmaRead ()

void	doDmaDataWrite ()

void	doDmaWrite ()

void	dmaPrdReadDone ()

void	dmaReadDone ()

void	dmaWriteDone ()

void	readDisk (uint32_t sector, uint8_t *data)

void	writeDisk (uint32_t sector, uint8_t *data)

void	updateState (DevAction_t action)

bool	isBSYSet ()

bool	isIENSet ()

bool	isDEVSelect ()

void	setComplete ()

uint32_t	getLBABase ()

Addr	pciToDma (Addr pciAddr)

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

Private Attributes
struct ataparams	driveID
	Drive identification structure for this disk. More...

uint8_t *	dataBuffer
	Data buffer for transfers. More...

uint32_t	cmdBytes
	Number of bytes in command data transfer. More...

uint32_t	cmdBytesLeft
	Number of bytes left in command data transfer. More...

uint32_t	drqBytesLeft
	Number of bytes left in DRQ block. More...

uint32_t	curSector
	Current sector in access. More...

CommandReg_t	cmdReg
	Command block registers. More...

uint8_t	status
	Status register. More...

bool	nIENBit
	Interrupt enable bit. More...

DevState_t	devState
	Device state. More...

DmaState_t	dmaState
	Dma state. More...

bool	dmaRead
	Dma transaction is a read. More...

Addr	pageBytes
	Size of OS pages. More...

uint32_t	curPrdAddr
	PRD table base address. More...

PrdTableEntry	curPrd
	PRD entry. More...

int	devID
	Device ID (device0=0/device1=1) More...

bool	intrPending
	Interrupt pending. More...

bool	dmaAborted
	DMA Aborted. More...

Stats::Scalar	dmaReadFullPages

Stats::Scalar	dmaReadBytes

Stats::Scalar	dmaReadTxs

Stats::Scalar	dmaWriteFullPages

Stats::Scalar	dmaWriteBytes

Stats::Scalar	dmaWriteTxs

EventFunctionWrapper	dmaTransferEvent

ChunkGenerator *	dmaReadCG

EventFunctionWrapper	dmaReadWaitEvent

ChunkGenerator *	dmaWriteCG

EventFunctionWrapper	dmaWriteWaitEvent

EventFunctionWrapper	dmaPrdReadEvent

EventFunctionWrapper	dmaReadEvent

EventFunctionWrapper	dmaWriteEvent

Additional Inherited Members
Static Public Member Functions inherited from SimObject
static void	serializeAll (CheckpointOut &cp)
	Serialize all SimObjects in the system. More...

static SimObject *	find (const char *name)
	Find the SimObject with the given name and return a pointer to it. More...

Static Public Member Functions inherited from Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section. More...

static void	serializeAll (const std::string &cpt_dir)
	Serializes all the SimObjects. More...

static void	unserializeGlobals (CheckpointIn &cp)

Protected Member Functions inherited from Drainable
	Drainable ()

virtual	~Drainable ()

virtual void	drainResume ()
	Resume execution after a successful drain. More...

void	signalDrainDone () const
	Signal that an object is drained. More...

Detailed Description

IDE Disk device model.

Definition at line 205 of file ide_disk.hh.

Member Typedef Documentation

◆ Params

typedef IdeDiskParams IdeDisk::Params

Definition at line 263 of file ide_disk.hh.

Constructor & Destructor Documentation

◆ IdeDisk()

IdeDisk::IdeDisk ( const Params * p )

Definition at line 61 of file ide_disk.cc.

References doDmaTransfer().

◆ ~IdeDisk()

IdeDisk::~IdeDisk ( )

Delete the data buffer.

Definition at line 135 of file ide_disk.cc.

References dataBuffer.

Member Function Documentation

◆ abortDma()

void IdeDisk::abortDma ( )

Definition at line 610 of file ide_disk.cc.

References ACT_CMD_ERROR, devState, Dma_Idle, dmaState, panic, Prepare_Data_Dma, Transfer_Data_Dma, and updateState().

◆ dmaPrdReadDone()

void IdeDisk::dmaPrdReadDone ( )

private

Definition at line 354 of file ide_disk.cc.

References ACT_CMD_ERROR, cmdBytesLeft, curPrd, curPrdAddr, curSector, dmaAborted, dmaRead, doDmaDataRead(), doDmaDataWrite(), DPRINTF, PrdTableEntry::getBaseAddr(), PrdTableEntry::getByteCount(), PrdTableEntry::getEOT(), pciToDma(), SectorSize, and updateState().

◆ dmaReadDone()

void IdeDisk::dmaReadDone ( )

private

Definition at line 462 of file ide_disk.cc.

References ACT_DMA_DONE, cmdBytesLeft, curPrd, curSector, dataBuffer, Dma_Idle, dmaState, doDmaTransfer(), PrdTableEntry::getByteCount(), PrdTableEntry::getEOT(), SectorSize, updateState(), and writeDisk().

Referenced by doDmaRead().

◆ dmaWriteDone()

void IdeDisk::dmaWriteDone ( )

private

Definition at line 549 of file ide_disk.cc.

References ACT_DMA_DONE, cmdBytesLeft, curPrd, Dma_Idle, dmaState, doDmaTransfer(), DPRINTF, PrdTableEntry::getByteCount(), PrdTableEntry::getEOT(), and updateState().

Referenced by doDmaWrite().

◆ doDmaDataRead()

void IdeDisk::doDmaDataRead ( )

private

Todo:: we need to figure out what the delay actually will be

Definition at line 378 of file ide_disk.cc.

References curPrd, curTick(), diskDelay, dmaReadWaitEvent, DPRINTF, PrdTableEntry::getByteCount(), EventManager::schedule(), and SectorSize.

Referenced by dmaPrdReadDone().

◆ doDmaDataWrite()

void IdeDisk::doDmaDataWrite ( )

private

Todo:: we need to figure out what the delay actually will be

Definition at line 485 of file ide_disk.cc.

References cmdBytesLeft, curPrd, curSector, curTick(), dataBuffer, diskDelay, dmaWriteWaitEvent, DPRINTF, PrdTableEntry::getByteCount(), MAX_DMA_SIZE, readDisk(), EventManager::schedule(), and SectorSize.

Referenced by dmaPrdReadDone().

◆ doDmaRead()

void IdeDisk::doDmaRead ( )

private

◆ doDmaTransfer()

void IdeDisk::doDmaTransfer ( )

private

Definition at line 333 of file ide_disk.cc.

References ACT_CMD_ERROR, ctrl, curPrd, curPrdAddr, curTick(), devState, DMA_BACKOFF_PERIOD, Dma_Transfer, dmaAborted, DmaDevice::dmaPending(), dmaPrdReadEvent, DmaDevice::dmaRead(), dmaState, dmaTransferEvent, DPRINTF, Drainable::drainState(), PrdTableEntry::entry, panic, Running, EventManager::schedule(), Transfer_Data_Dma, and updateState().

Referenced by dmaReadDone(), dmaWriteDone(), and IdeDisk().

◆ doDmaWrite()

void IdeDisk::doDmaWrite ( )

private

◆ getLBABase()

uint32_t IdeDisk::getLBABase ( )

inlineprivate

Definition at line 357 of file ide_disk.hh.

References cmdReg, CommandReg::cyl_high, CommandReg::cyl_low, CommandReg::head, and CommandReg::sec_num.

Referenced by startCommand().

◆ intrClear()

void IdeDisk::intrClear ( )

private

Definition at line 753 of file ide_disk.cc.

References ctrl, DPRINTF, PciDevice::intrClear(), intrPending, and panic.

Referenced by updateState().

◆ intrPost()

void IdeDisk::intrPost ( )

private

Definition at line 738 of file ide_disk.cc.

References ctrl, DPRINTF, intrPending, IdeController::intrPost(), and panic.

Referenced by updateState().

◆ isBSYSet()

bool IdeDisk::isBSYSet ( )

inlineprivate

Definition at line 343 of file ide_disk.hh.

References status, and STATUS_BSY_BIT.

◆ isDEVSelect()

bool IdeDisk::isDEVSelect ( )

private

Definition at line 186 of file ide_disk.cc.

References ctrl, and IdeController::isDiskSelected().

Referenced by updateState().

◆ isIENSet()

bool IdeDisk::isIENSet ( )

inlineprivate

Definition at line 344 of file ide_disk.hh.

References nIENBit.

Referenced by updateState().

◆ pciToDma()

Addr IdeDisk::pciToDma ( Addr pciAddr )

inlineprivate

Definition at line 192 of file ide_disk.cc.

References ctrl, panic, and PciDevice::pciToDma().

Referenced by dmaPrdReadDone(), doDmaRead(), doDmaWrite(), and startDma().

◆ readCommand()

void IdeDisk::readCommand	(	const Addr	offset,
		int	size,
		uint8_t *	data
	)

Definition at line 205 of file ide_disk.cc.

References ACT_DATA_READ_SHORT, ACT_STAT_READ, cmdReg, CommandReg::cyl_high, CommandReg::cyl_low, data, CommandReg::data, DATA_OFFSET, DPRINTF, CommandReg::drive, DRIVE_OFFSET, CommandReg::error, ERROR_OFFSET, HCYL_OFFSET, LCYL_OFFSET, NSECTOR_OFFSET, ArmISA::offset, panic, CommandReg::sec_count, CommandReg::sec_num, SECTOR_OFFSET, status, STATUS_OFFSET, and updateState().

◆ readControl()

void IdeDisk::readControl	(	const Addr	offset,
		int	size,
		uint8_t *	data
	)

Definition at line 251 of file ide_disk.cc.

References ALTSTAT_OFFSET, data, DPRINTF, ArmISA::offset, panic, and status.

◆ readDisk()

void IdeDisk::readDisk	(	uint32_t	sector,
		uint8_t *	data
	)

private

Definition at line 568 of file ide_disk.cc.

References data, image, SimObject::name(), panic, DiskImage::read(), and SectorSize.

Referenced by doDmaDataWrite(), and updateState().

◆ regStats()

void IdeDisk::regStats ( )

overridevirtual

Register Statistics.

Reimplemented from Stats::Group.

Definition at line 390 of file ide_disk.cc.

References Stats::DataWrap< Derived, InfoProxyType >::desc(), dmaReadBytes, dmaReadFullPages, dmaReadTxs, dmaWriteBytes, dmaWriteFullPages, dmaWriteTxs, SimObject::name(), Stats::DataWrap< Derived, InfoProxyType >::name(), and Stats::Group::regStats().

◆ reset()

void IdeDisk::reset ( int id )

Reset the device state.

Definition at line 142 of file ide_disk.cc.

References cmdBytes, cmdBytesLeft, cmdReg, curPrd, curPrdAddr, curSector, dataBuffer, DEV0, DEV1, Device_Idle_NS, Device_Idle_S, devID, devState, Dma_Idle, dmaAborted, dmaRead, dmaState, drqBytesLeft, PrdTableEntry::entry, CommandReg::error, intrPending, MAX_DMA_SIZE, panic, status, and STATUS_DRDY_BIT.

Referenced by updateState().

◆ serialize()

void IdeDisk::serialize ( CheckpointOut & cp ) const

overrideprivatevirtual

Serialize an object.

Output an object's state into the current checkpoint section.

Parameters

cp	Checkpoint state

Todo:: need to serialized chunk generator stuff!!

Implements Serializable.

Definition at line 1071 of file ide_disk.cc.

References PrdEntry::baseAddr, PrdEntry::byteCount, cmdBytes, cmdBytesLeft, cmdReg, CommandReg::command, curPrd, curPrdAddr, curSector, CommandReg::cyl_high, CommandReg::cyl_low, CommandReg::data, dataBuffer, devID, devState, dmaAborted, dmaPrdReadEvent, DmaRead, dmaRead, dmaReadEvent, dmaReadWaitEvent, dmaState, dmaTransferEvent, DmaWrite, dmaWriteEvent, dmaWriteWaitEvent, CommandReg::drive, drqBytesLeft, PrdEntry::endOfTable, PrdTableEntry::entry, MipsISA::event, intrPending, MAX_DMA_SIZE, nIENBit, None, PrdRead, ReadWait, EventManager::reschedule(), Event::scheduled(), CommandReg::sec_count, CommandReg::sec_num, SERIALIZE_ARRAY, SERIALIZE_ENUM, SERIALIZE_SCALAR, status, Transfer, Event::when(), and WriteWait.

◆ setComplete()

void IdeDisk::setComplete ( )

inlineprivate

Definition at line 347 of file ide_disk.hh.

References status, STATUS_DRDY_BIT, and STATUS_SEEK_BIT.

Referenced by updateState().

◆ setController()

void IdeDisk::setController	(	IdeController *	c,
		Addr	page_bytes
	)

inline

Set the controller for this device.

Parameters

c	The IDE controller

Definition at line 286 of file ide_disk.hh.

References ArmISA::c, ctrl, pageBytes, and panic_if.

◆ startCommand()

void IdeDisk::startCommand ( )

private

Todo:: make this a scheduled event to simulate disk delay

Definition at line 622 of file ide_disk.cc.

References ACT_CMD_COMPLETE, ACT_DATA_READY, ACT_DMA_READY, ACT_NONE, ATAPI_IDENTIFY_DEVICE, cmdBytes, cmdBytesLeft, cmdReg, CommandReg::command, Command_Execution, curSector, CommandReg::cyl_high, CommandReg::cyl_low, devState, dmaRead, DPRINTF, CommandReg::drive, DRIVE_LBA_BIT, getLBABase(), CommandReg::head, image, M5_FALLTHROUGH, panic, Prepare_Data_Dma, Prepare_Data_In, Prepare_Data_Out, CommandReg::sec_count, CommandReg::sec_num, SectorSize, SET_FEATURES, DiskImage::size(), status, STATUS_BSY_BIT, STATUS_DF_BIT, STATUS_DRQ_BIT, updateState(), WDCC_FLUSHCACHE, WDCC_IDENTIFY, WDCC_IDLE, WDCC_IDP, WDCC_READ, WDCC_READDMA, WDCC_READMULTI, WDCC_RECAL, WDCC_SETMULTI, WDCC_STANDBY_IMMED, WDCC_WRITE, WDCC_WRITEDMA, WDCC_WRITEMULTI, WDSF_READ_NATIVE_MAX, WDSF_SEEK, and WDSF_VERIFY.

Referenced by updateState().

◆ startDma()

void IdeDisk::startDma ( const uint32_t & prdTableBase )

Definition at line 592 of file ide_disk.cc.

References curPrdAddr, curTick(), devState, Dma_Start, Dma_Transfer, dmaState, dmaTransferEvent, panic, pciToDma(), EventManager::schedule(), Transfer_Data_Dma, and ULL.

◆ unserialize()

void IdeDisk::unserialize ( CheckpointIn & cp )

overrideprivatevirtual

Unserialize an object.

Read an object's state from the current checkpoint section.

Parameters

cp	Checkpoint state

Todo:: need to serialized chunk generator stuff!!

Implements Serializable.

Definition at line 1149 of file ide_disk.cc.

References PrdEntry::baseAddr, PrdEntry::byteCount, cmdBytes, cmdBytesLeft, cmdReg, CommandReg::command, curPrd, curPrdAddr, curSector, CommandReg::cyl_high, CommandReg::cyl_low, CommandReg::data, dataBuffer, devID, devState, dmaAborted, dmaPrdReadEvent, DmaRead, dmaRead, dmaReadEvent, dmaReadWaitEvent, dmaState, dmaTransferEvent, DmaWrite, dmaWriteEvent, dmaWriteWaitEvent, CommandReg::drive, drqBytesLeft, PrdEntry::endOfTable, PrdTableEntry::entry, MipsISA::event, intrPending, MAX_DMA_SIZE, nIENBit, None, PrdRead, ReadWait, EventManager::reschedule(), EventManager::schedule(), CommandReg::sec_count, CommandReg::sec_num, status, Transfer, UNSERIALIZE_ARRAY, UNSERIALIZE_ENUM, UNSERIALIZE_SCALAR, and WriteWait.

◆ updateState()

void IdeDisk::updateState ( DevAction_t action )

private

Todo:: change this to a scheduled event to simulate disk delay

Todo:: change this to a scheduled event to simulate disk delay

Definition at line 771 of file ide_disk.cc.

References ACT_CMD_COMPLETE, ACT_CMD_ERROR, ACT_CMD_WRITE, ACT_DATA_READ_BYTE, ACT_DATA_READ_SHORT, ACT_DATA_READY, ACT_DATA_WRITE_BYTE, ACT_DATA_WRITE_SHORT, ACT_DMA_DONE, ACT_DMA_READY, ACT_SELECT_WRITE, ACT_SRST_CLEAR, ACT_SRST_SET, ACT_STAT_READ, ATAPI_IDENTIFY_DEVICE, cmdBytes, cmdBytesLeft, cmdReg, CommandReg::command, Command_Execution, ctrl, curSector, CommandReg::data, Data_Ready_INTRQ_In, Data_Ready_INTRQ_Out, dataBuffer, Device_Dma_Abort, Device_Idle_NS, Device_Idle_S, Device_Idle_SI, Device_Srst, devID, devState, Dma_Idle, Dma_Start, dmaAborted, dmaState, DPRINTF, driveID, drqBytesLeft, intrClear(), intrPending, intrPost(), isDEVSelect(), isIENSet(), MAX_DMA_SIZE, panic, Prepare_Data_Dma, Prepare_Data_In, Prepare_Data_Out, readDisk(), reset(), SectorSize, setComplete(), IdeController::setDmaComplete(), startCommand(), status, STATUS_BSY_BIT, STATUS_DRQ_BIT, STATUS_SEEK_BIT, Transfer_Data_Dma, Transfer_Data_In, Transfer_Data_Out, WDCC_IDENTIFY, and writeDisk().

Referenced by abortDma(), dmaPrdReadDone(), dmaReadDone(), dmaWriteDone(), doDmaRead(), doDmaTransfer(), doDmaWrite(), readCommand(), startCommand(), writeCommand(), and writeControl().

◆ writeCommand()

void IdeDisk::writeCommand	(	const Addr	offset,
		int	size,
		const uint8_t *	data
	)

Definition at line 261 of file ide_disk.cc.

References ACT_CMD_WRITE, ACT_DATA_WRITE_SHORT, ACT_SELECT_WRITE, cmdReg, CommandReg::command, COMMAND_OFFSET, CommandReg::cyl_high, CommandReg::cyl_low, data, CommandReg::data, DATA_OFFSET, DPRINTF, CommandReg::drive, DRIVE_OFFSET, FEATURES_OFFSET, HCYL_OFFSET, LCYL_OFFSET, NSECTOR_OFFSET, ArmISA::offset, panic, CommandReg::sec_count, CommandReg::sec_num, SECTOR_OFFSET, and updateState().

◆ writeControl()

void IdeDisk::writeControl	(	const Addr	offset,
		int	size,
		const uint8_t *	data
	)

Definition at line 309 of file ide_disk.cc.

References ACT_SRST_CLEAR, ACT_SRST_SET, CONTROL_IEN_BIT, CONTROL_OFFSET, CONTROL_RST_BIT, data, Device_Srst, devState, DPRINTF, nIENBit, ArmISA::offset, panic, and updateState().

◆ writeDisk()

void IdeDisk::writeDisk	(	uint32_t	sector,
		uint8_t *	data
	)

private

Definition at line 578 of file ide_disk.cc.

References data, image, SimObject::name(), panic, SectorSize, and DiskImage::write().

Referenced by dmaReadDone(), and updateState().

Member Data Documentation

◆ cmdBytes

uint32_t IdeDisk::cmdBytes

private

Number of bytes in command data transfer.

Definition at line 223 of file ide_disk.hh.

Referenced by reset(), serialize(), startCommand(), unserialize(), and updateState().

◆ cmdBytesLeft

uint32_t IdeDisk::cmdBytesLeft

private

Number of bytes left in command data transfer.

Definition at line 225 of file ide_disk.hh.

Referenced by dmaPrdReadDone(), dmaReadDone(), dmaWriteDone(), doDmaDataWrite(), reset(), serialize(), startCommand(), unserialize(), and updateState().

◆ cmdReg

CommandReg_t IdeDisk::cmdReg

private

Command block registers.

Definition at line 231 of file ide_disk.hh.

Referenced by getLBABase(), readCommand(), reset(), serialize(), startCommand(), unserialize(), updateState(), and writeCommand().

◆ ctrl

IdeController* IdeDisk::ctrl

protected

The IDE controller for this disk.

Definition at line 209 of file ide_disk.hh.

Referenced by doDmaRead(), doDmaTransfer(), doDmaWrite(), intrClear(), intrPost(), isDEVSelect(), pciToDma(), setController(), and updateState().

◆ curPrd

PrdTableEntry IdeDisk::curPrd

private

PRD entry.

Definition at line 247 of file ide_disk.hh.

Referenced by dmaPrdReadDone(), dmaReadDone(), dmaWriteDone(), doDmaDataRead(), doDmaDataWrite(), doDmaRead(), doDmaTransfer(), doDmaWrite(), reset(), serialize(), and unserialize().

◆ curPrdAddr

uint32_t IdeDisk::curPrdAddr

private

PRD table base address.

Definition at line 245 of file ide_disk.hh.

Referenced by dmaPrdReadDone(), doDmaTransfer(), reset(), serialize(), startDma(), and unserialize().

◆ curSector

uint32_t IdeDisk::curSector

private

Current sector in access.

Definition at line 229 of file ide_disk.hh.

Referenced by dmaPrdReadDone(), dmaReadDone(), doDmaDataWrite(), reset(), serialize(), startCommand(), unserialize(), and updateState().

◆ dataBuffer

uint8_t* IdeDisk::dataBuffer

private

Data buffer for transfers.

Definition at line 221 of file ide_disk.hh.

Referenced by dmaReadDone(), doDmaDataWrite(), doDmaRead(), doDmaWrite(), reset(), serialize(), unserialize(), updateState(), and ~IdeDisk().

◆ devID

int IdeDisk::devID

private

Device ID (device0=0/device1=1)

Definition at line 249 of file ide_disk.hh.

Referenced by reset(), serialize(), unserialize(), and updateState().

◆ devState

DevState_t IdeDisk::devState

private

Device state.

Definition at line 237 of file ide_disk.hh.

Referenced by abortDma(), doDmaTransfer(), reset(), serialize(), startCommand(), startDma(), unserialize(), updateState(), and writeControl().

◆ diskDelay

int IdeDisk::diskDelay

protected

The disk delay in microseconds.

Definition at line 215 of file ide_disk.hh.

Referenced by doDmaDataRead(), and doDmaDataWrite().

◆ dmaAborted

bool IdeDisk::dmaAborted

private

DMA Aborted.

Definition at line 253 of file ide_disk.hh.

Referenced by dmaPrdReadDone(), doDmaRead(), doDmaTransfer(), doDmaWrite(), reset(), serialize(), unserialize(), and updateState().

◆ dmaPrdReadEvent

EventFunctionWrapper IdeDisk::dmaPrdReadEvent

private

Definition at line 327 of file ide_disk.hh.

Referenced by doDmaTransfer(), serialize(), and unserialize().

◆ dmaRead

bool IdeDisk::dmaRead

private

Dma transaction is a read.

Definition at line 241 of file ide_disk.hh.

Referenced by dmaPrdReadDone(), reset(), serialize(), startCommand(), and unserialize().

◆ dmaReadBytes

Stats::Scalar IdeDisk::dmaReadBytes

private

Definition at line 256 of file ide_disk.hh.

Referenced by doDmaRead(), and regStats().

◆ dmaReadCG

ChunkGenerator* IdeDisk::dmaReadCG

private

Definition at line 317 of file ide_disk.hh.

Referenced by doDmaRead().

◆ dmaReadEvent

EventFunctionWrapper IdeDisk::dmaReadEvent

private

Definition at line 330 of file ide_disk.hh.

Referenced by serialize(), and unserialize().

◆ dmaReadFullPages

Stats::Scalar IdeDisk::dmaReadFullPages

private

Definition at line 255 of file ide_disk.hh.

Referenced by doDmaRead(), and regStats().

◆ dmaReadTxs

Stats::Scalar IdeDisk::dmaReadTxs

private

Definition at line 257 of file ide_disk.hh.

Referenced by doDmaRead(), and regStats().

◆ dmaReadWaitEvent

EventFunctionWrapper IdeDisk::dmaReadWaitEvent

private

Definition at line 318 of file ide_disk.hh.

Referenced by doDmaDataRead(), doDmaRead(), serialize(), and unserialize().

◆ dmaState

DmaState_t IdeDisk::dmaState

private

Dma state.

Definition at line 239 of file ide_disk.hh.

Referenced by abortDma(), dmaReadDone(), dmaWriteDone(), doDmaTransfer(), reset(), serialize(), startDma(), unserialize(), and updateState().

◆ dmaTransferEvent

EventFunctionWrapper IdeDisk::dmaTransferEvent

private

Definition at line 312 of file ide_disk.hh.

Referenced by doDmaTransfer(), serialize(), startDma(), and unserialize().

◆ dmaWriteBytes

Stats::Scalar IdeDisk::dmaWriteBytes

private

Definition at line 259 of file ide_disk.hh.

Referenced by doDmaWrite(), and regStats().

◆ dmaWriteCG

ChunkGenerator* IdeDisk::dmaWriteCG

private

Definition at line 323 of file ide_disk.hh.

Referenced by doDmaWrite().

◆ dmaWriteEvent

EventFunctionWrapper IdeDisk::dmaWriteEvent

private

Definition at line 333 of file ide_disk.hh.

Referenced by serialize(), and unserialize().

◆ dmaWriteFullPages

Stats::Scalar IdeDisk::dmaWriteFullPages

private

Definition at line 258 of file ide_disk.hh.

Referenced by doDmaWrite(), and regStats().

◆ dmaWriteTxs

Stats::Scalar IdeDisk::dmaWriteTxs

private

Definition at line 260 of file ide_disk.hh.

Referenced by doDmaWrite(), and regStats().

◆ dmaWriteWaitEvent

EventFunctionWrapper IdeDisk::dmaWriteWaitEvent

private

Definition at line 324 of file ide_disk.hh.

Referenced by doDmaDataWrite(), doDmaWrite(), serialize(), and unserialize().

◆ driveID

struct ataparams IdeDisk::driveID

private

Drive identification structure for this disk.

Definition at line 219 of file ide_disk.hh.

Referenced by updateState().

◆ drqBytesLeft

uint32_t IdeDisk::drqBytesLeft

private

Number of bytes left in DRQ block.

Definition at line 227 of file ide_disk.hh.

Referenced by reset(), serialize(), unserialize(), and updateState().

◆ image

DiskImage* IdeDisk::image

protected

The image that contains the data of this disk.

Definition at line 211 of file ide_disk.hh.

Referenced by readDisk(), startCommand(), and writeDisk().

◆ intrPending

bool IdeDisk::intrPending

private

Interrupt pending.

Definition at line 251 of file ide_disk.hh.

Referenced by intrClear(), intrPost(), reset(), serialize(), unserialize(), and updateState().

◆ nIENBit

bool IdeDisk::nIENBit

private

Interrupt enable bit.

Definition at line 235 of file ide_disk.hh.

Referenced by isIENSet(), serialize(), unserialize(), and writeControl().

◆ pageBytes

Addr IdeDisk::pageBytes

private

Size of OS pages.

Definition at line 243 of file ide_disk.hh.

Referenced by doDmaRead(), doDmaWrite(), and setController().

◆ status

uint8_t IdeDisk::status

private

Status register.

Definition at line 233 of file ide_disk.hh.

Referenced by isBSYSet(), readCommand(), readControl(), reset(), serialize(), setComplete(), startCommand(), unserialize(), and updateState().

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

dev/storage/ide_disk.hh
dev/storage/ide_disk.cc

Public Types

Public Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Params

Constructor & Destructor Documentation

◆ IdeDisk()

◆ ~IdeDisk()

Member Function Documentation

◆ abortDma()

◆ dmaPrdReadDone()

◆ dmaReadDone()

◆ dmaWriteDone()

◆ doDmaDataRead()

◆ doDmaDataWrite()

◆ doDmaRead()

◆ doDmaTransfer()

◆ doDmaWrite()

◆ getLBABase()

◆ intrClear()

◆ intrPost()

◆ isBSYSet()

◆ isDEVSelect()

◆ isIENSet()

◆ pciToDma()

◆ readCommand()

◆ readControl()

◆ readDisk()

◆ regStats()

◆ reset()

◆ serialize()

◆ setComplete()

◆ setController()

◆ startCommand()

◆ startDma()

◆ unserialize()

◆ updateState()

◆ writeCommand()

◆ writeControl()

◆ writeDisk()

Member Data Documentation

◆ cmdBytes

◆ cmdBytesLeft

◆ cmdReg

◆ ctrl

◆ curPrd

◆ curPrdAddr

◆ curSector

◆ dataBuffer

◆ devID

◆ devState

◆ diskDelay

◆ dmaAborted

◆ dmaPrdReadEvent

◆ dmaRead

◆ dmaReadBytes

◆ dmaReadCG

◆ dmaReadEvent

◆ dmaReadFullPages

◆ dmaReadTxs

◆ dmaReadWaitEvent

◆ dmaState

◆ dmaTransferEvent

◆ dmaWriteBytes

◆ dmaWriteCG

◆ dmaWriteEvent

◆ dmaWriteFullPages

◆ dmaWriteTxs

◆ dmaWriteWaitEvent

◆ driveID

◆ drqBytesLeft

◆ image

◆ intrPending

◆ nIENBit

◆ pageBytes

◆ status