openMSX: openmsx::DiskDrive Class Reference

openMSX

This (abstract) class defines the DiskDrive interface. More...

#include <DiskDrive.hh>

Inheritance diagram for openmsx::DiskDrive:

Inheritance graph

Collaboration diagram for openmsx::DiskDrive:

Collaboration graph

Public Member Functions
virtual	~DiskDrive ()
virtual bool	isDiskInserted () const =0
	Is drive ready?
virtual bool	isWriteProtected () const =0
	Is disk write protected?
virtual bool	isDoubleSided () const =0
	Is disk double sided?
virtual bool	isTrack00 () const =0
	Head above track 0.
virtual void	setSide (bool side)=0
	Side select.
virtual void	step (bool direction, EmuTime::param time)=0
	Step head.
virtual void	setMotor (bool status, EmuTime::param time)=0
	Set motor on/off.
virtual bool	indexPulse (EmuTime::param time)=0
	Gets the state of the index pulse.
virtual EmuTime	getTimeTillIndexPulse (EmuTime::param time, int count=1)=0
	Return the time till the start of the next index pulse When there is no disk in the drive or when the disk is not spinning, this function returns the current time.
virtual void	setHeadLoaded (bool status, EmuTime::param time)=0
	Set head loaded status.
virtual bool	headLoaded (EmuTime::param time)=0
	Is head loaded?
virtual void	writeTrack (const RawTrack &track)=0
virtual void	readTrack (RawTrack &track)=0
virtual EmuTime	getNextSector (EmuTime::param time, RawTrack &track, RawTrack::Sector &sector)=0
virtual bool	diskChanged ()=0
	Is disk changed?
virtual bool	peekDiskChanged () const =0
virtual bool	isDummyDrive () const =0
	Is there a dummy (unconncted) drive?

Static Public Attributes
static const unsigned	ROTATIONS_PER_SECOND = 5

Additional Inherited Members

Detailed Description

This (abstract) class defines the DiskDrive interface.

Definition at line 14 of file DiskDrive.hh.

Constructor & Destructor Documentation

openmsx::DiskDrive::~DiskDrive ( )

virtual

Definition at line 9 of file DiskDrive.cc.

Member Function Documentation

virtual bool openmsx::DiskDrive::diskChanged ( )

pure virtual

Is disk changed?

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::TC8566AF::diskChanged(), and openmsx::DriveMultiplexer::diskChanged().

virtual EmuTime openmsx::DiskDrive::getNextSector	(	EmuTime::param	time,
		RawTrack &	track,
		RawTrack::Sector &	sector
	)

pure virtual

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::DriveMultiplexer::getNextSector().

virtual EmuTime openmsx::DiskDrive::getTimeTillIndexPulse	(	EmuTime::param	time,
		int	count = `1`
	)

pure virtual

Return the time till the start of the next index pulse When there is no disk in the drive or when the disk is not spinning, this function returns the current time.

Parameters

time	The current time
count	Number of required index pulses.

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::DriveMultiplexer::getTimeTillIndexPulse().

virtual bool openmsx::DiskDrive::headLoaded ( EmuTime::param time )

pure virtual

Is head loaded?

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::WD2793::getStatusReg(), and openmsx::DriveMultiplexer::headLoaded().

virtual bool openmsx::DiskDrive::indexPulse ( EmuTime::param time )

pure virtual

Gets the state of the index pulse.

Parameters

time	The moment in emulated time to get the pulse state for.

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::WD2793::getStatusReg(), and openmsx::DriveMultiplexer::indexPulse().

virtual bool openmsx::DiskDrive::isDiskInserted ( ) const

pure virtual

Is drive ready?

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::DriveMultiplexer::isDiskInserted().

virtual bool openmsx::DiskDrive::isDoubleSided ( ) const

pure virtual

Is disk double sided?

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::DriveMultiplexer::isDoubleSided().

virtual bool openmsx::DiskDrive::isDummyDrive ( ) const

pure virtual

Is there a dummy (unconncted) drive?

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::DriveMultiplexer::isDummyDrive().

virtual bool openmsx::DiskDrive::isTrack00 ( ) const

pure virtual

Head above track 0.

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::WD2793::getStatusReg(), and openmsx::DriveMultiplexer::isTrack00().

virtual bool openmsx::DiskDrive::isWriteProtected ( ) const

pure virtual

Is disk write protected?

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::WD2793::getStatusReg(), and openmsx::DriveMultiplexer::isWriteProtected().

virtual bool openmsx::DiskDrive::peekDiskChanged ( ) const

pure virtual

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::TC8566AF::peekDiskChanged(), and openmsx::DriveMultiplexer::peekDiskChanged().

virtual void openmsx::DiskDrive::readTrack ( RawTrack & track )

pure virtual

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::DriveMultiplexer::readTrack().

virtual void openmsx::DiskDrive::setHeadLoaded	(	bool	status,
		EmuTime::param	time
	)

pure virtual

Set head loaded status.

Parameters

status	false = not loaded, true = loaded.
time	The moment in emulated time this action takes place.

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::DriveMultiplexer::setHeadLoaded().

virtual void openmsx::DiskDrive::setMotor	(	bool	status,
		EmuTime::param	time
	)

pure virtual

Set motor on/off.

Parameters

status	false = off, true = on.
time	The moment in emulated time this action takes place.

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::TC8566AF::reset(), openmsx::DriveMultiplexer::selectDrive(), openmsx::DriveMultiplexer::setMotor(), and openmsx::TC8566AF::writeReg().

virtual void openmsx::DiskDrive::setSide ( bool side )

pure virtual

Side select.

Parameters

side	false = side 0, true = side 1.

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::DriveMultiplexer::selectDrive(), and openmsx::DriveMultiplexer::setSide().

virtual void openmsx::DiskDrive::step	(	bool	direction,
		EmuTime::param	time
	)

pure virtual

Step head.

Parameters

direction	false = out, true = in.
time	The moment in emulated time this action takes place.

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::DriveMultiplexer::step().

virtual void openmsx::DiskDrive::writeTrack ( const RawTrack & track )

pure virtual

Implemented in openmsx::DummyDrive, and openmsx::DriveMultiplexer.

Referenced by openmsx::DriveMultiplexer::writeTrack().

Member Data Documentation

const unsigned openmsx::DiskDrive::ROTATIONS_PER_SECOND = 5

static

Definition at line 17 of file DiskDrive.hh.

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