Abstrace base class for hardware I/O capabilities. More...

#include <IoBase.h>

Inheritance diagram for IoBase:

Collaboration diagram for IoBase:

Public Member Functions
virtual	~IoBase ()

virtual size_t	size () const =0

virtual uint8_t	read8 (size_t offset=0)=0

virtual uint16_t	read16 (size_t offset=0)=0

virtual uint32_t	read32 (size_t offset=0)=0

virtual uint64_t	read64 (size_t offset=0)=0

uint64_t	read64LowFirst (size_t offset=0)

uint64_t	read64HighFirst (size_t offset=0)

virtual void	write8 (uint8_t value, size_t offset=0)=0

virtual void	write16 (uint16_t value, size_t offset=0)=0

virtual void	write32 (uint32_t value, size_t offset=0)=0

virtual void	write64 (uint64_t value, size_t offset=0)=0

void	write64LowFirst (uint64_t value, size_t offset=0)

void	write64HighFirst (uint64_t value, size_t offset=0)

virtual	operator bool () const =0

Protected Member Functions
	IoBase ()

Private Member Functions
	IoBase (const IoBase &)

IoBase &	operator= (const IoBase &)

Detailed Description

Abstrace base class for hardware I/O capabilities.

Interface to the hardware's I/O capabilities

Definition at line 31 of file IoBase.h.

Constructor & Destructor Documentation

IoBase::~IoBase ( )

virtualdefault

The destructor does nothing

IoBase::IoBase ( )

protecteddefault

The default constructor does nothing

IoBase::IoBase ( const IoBase & )

private

The copy-constructor

Note: NOT implemented

Member Function Documentation

virtual IoBase::operator bool ( ) const

pure virtual

Check whether this class is usable

Returns: true, if the class holds a ressource that is correctly allocated and usable

Implemented in IoPort, and MemoryMappedIo.

IoBase& IoBase::operator= ( const IoBase & )

private

The assignment operator

Note: NOT implemented

virtual uint16_t IoBase::read16 ( size_t offset = 0 )

pure virtual

Read two byte (16bit) from the I/O Port or the memory-mapped I/O region

Parameters

[in] offset offset from the I/O base port or the I/O base memory address

Returns: the two byte (16bit) that have been read

Implemented in IoPort, and MemoryMappedIo.

Referenced by AtaDisk::doRead(), AtaDisk::initialise(), Nic3C90x::irq(), Nic3C90x::issueCommand(), Ne2k::Ne2k(), Nic3C90x::Nic3C90x(), Nic3C90x::readEeprom(), Nic3C90x::reset(), Nic3C90x::send(), Ne2k::send(), AtaDisk::sendCommand(), and Nic3C90x::writeEepromWord().

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virtual uint32_t IoBase::read32 ( size_t offset = 0 )

pure virtual

Read four byte (32bit) from the I/O Port or the memory-mapped I/O region

Parameters

[in] offset offset from the I/O base port or the I/O base memory address

Returns: the four byte (32bit) that have been read

Implemented in IoPort, and MemoryMappedIo.

Referenced by OpenPic::initialise(), Heathrow::interrupt(), OpenPic::interrupt(), Nic3C90x::irq(), Nic3C90x::Nic3C90x(), read64HighFirst(), read64LowFirst(), VmwareGraphics::readRegister(), Nic3C90x::reset(), and Nic3C90x::send().

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virtual uint64_t IoBase::read64 ( size_t offset = 0 )

pure virtual

Read eight byte (64bit) from the I/O Port or the memory-mapped I/O region.

Parameters

[in] offset offset from the I/O base port or the I/O base memory address

Returns: the eight byte (64bit) that have been read

Implemented in IoPort, and MemoryMappedIo.

uint64_t IoBase::read64HighFirst ( size_t offset = 0 )

inline

Read eight byte (64bit) from the I/O Port or the memory-mapped I/O region. The 32bit at the higher address are read first, then the 32bit at the lower address.

Parameters

[in] offset offset from the I/O base port or the I/O base memory address

Returns: the eight byte (64bit) that have been read

Definition at line 32 of file IoBase.cc.

References read32().

uint64_t IoBase::read64LowFirst ( size_t offset = 0 )

inline

Read eight byte (64bit) from the I/O Port or the memory-mapped I/O region. The 32bit at the lower address are read first, then the 32bit at the higher address.

Parameters

[in] offset offset from the I/O base port or the I/O base memory address

Returns: the eight byte (64bit) that have been read

Definition at line 25 of file IoBase.cc.

References read32().

virtual uint8_t IoBase::read8 ( size_t offset = 0 )

pure virtual

Read a byte (8bit) from the I/O Port or the memory-mapped I/O region

Parameters

[in] offset offset from the I/O base port or the I/O base memory address

Returns: the byte (8bit) that have been read

Implemented in IoPort, and MemoryMappedIo.

Referenced by AtaDisk::doRead(), AtaDisk::doWrite(), AtaDisk::initialise(), Nic3C90x::irq(), Ne2k::irq(), Ne2k::Ne2k(), Ne2k::send(), and AtaDisk::sendCommand().

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virtual size_t IoBase::size ( ) const

pure virtual

Get the size of the I/O region in bytes

Implemented in IoPort, and MemoryMappedIo.

Referenced by BusMasterIde::initialise().

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virtual void IoBase::write16	(	uint16_t	value,
		size_t	offset = `0`
	)

pure virtual

Write two byte (16bit) to the I/O port or the memory-mapped I/O region

Parameters

[in]	value	the value that should be written
[in]	offset	offset from the I/O base port or the I/O base memory address

Implemented in IoPort, and MemoryMappedIo.

Referenced by AtaDisk::doWrite(), Nic3C90x::issueCommand(), Nic3C90x::Nic3C90x(), Nic3C90x::readEeprom(), Nic3C90x::reset(), Ne2k::send(), AtaDisk::sendCommand(), Ib700Watchdog::timer(), and Nic3C90x::writeEepromWord().

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virtual void IoBase::write32	(	uint32_t	value,
		size_t	offset = `0`
	)

pure virtual

Write four byte (32bit) to the I/O port or the memory-mapped I/O region

Parameters

[in]	value	the value that should be written
[in]	offset	offset from the I/O base port or the I/O base memory address

Implemented in IoPort, and MemoryMappedIo.

Referenced by OpenPic::initialise(), Heathrow::interrupt(), OpenPic::interrupt(), Nic3C90x::Nic3C90x(), VmwareGraphics::readRegister(), Nic3C90x::reset(), Nic3C90x::send(), write64HighFirst(), and write64LowFirst().

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virtual void IoBase::write64	(	uint64_t	value,
		size_t	offset = `0`
	)

pure virtual

Write eight byte (64bit) to the I/O Port or the memory-mapped I/O region.

Parameters

[in]	value	the value that should be written
[in]	offset	offset from the I/O base port or the I/O base memory address

Implemented in IoPort, and MemoryMappedIo.

void IoBase::write64HighFirst	(	uint64_t	value,
		size_t	offset = `0`
	)

Write eight byte (64bit) to the I/O Port or the memory-mapped I/O region. The 32bit at the higher address are written first, then the 32bit at the lower address.

Parameters

[in]	value	the value that should be written
[in]	offset	offset from the I/O base port or the I/O base memory address

Definition at line 45 of file IoBase.cc.

References write32().

void IoBase::write64LowFirst	(	uint64_t	value,
		size_t	offset = `0`
	)

Write eight byte (64bit) to the I/O Port or the memory-mapped I/O region. The 32bit at the lower address are written first, then the 32bit at the higher address.

Parameters

[in]	value	the value that should be written
[in]	offset	offset from the I/O base port or the I/O base memory address

Definition at line 39 of file IoBase.cc.

References write32().

virtual void IoBase::write8	(	uint8_t	value,
		size_t	offset = `0`
	)

pure virtual

Write a byte (8bit) to the I/O port or the memory-mapped I/O region

Parameters

[in]	value	the value that should be written
[in]	offset	offset from the I/O base port or the I/O base memory address

Implemented in IoPort, and MemoryMappedIo.

Referenced by AtaDisk::doRead(), AtaDisk::doWrite(), AtaDisk::initialise(), Nic3C90x::irq(), Ne2k::irq(), Ne2k::Ne2k(), Nic3C90x::Nic3C90x(), Nic3C90x::reset(), Ne2k::send(), AtaDisk::sendCommand(), AtaDisk::setFeatures(), AtaDisk::setupLBA28(), and AtaDisk::setupLBA48().

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

Public Member Functions

Protected Member Functions

Private Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation