dxd::fw::address Class Reference

IOKit: FireWire address space. More...

#include <dxd_fw.h>

Inheritance diagram for dxd::fw::address:

Public Member Functions
	address ()
virtual void	free ()
	IOKit address space free.
void	free ()
os_result	initialize (::IOFireWireUnit *iokit_fw_unit, uint64_t space, size_t size32)
	IOKit: firewire address space initializer.
os_result	initialize (const dxd::fw &fw, uint64_t space, size_t size32)
	WDK: firewire pseudeo address space initializer.
virtual	~address ()
	IOKit: address space destructor.
virtual	~address ()

Public Attributes
size_t	size32
uint64_t	space =0
	firewire address
os_result	status =not_initialized
	object status

Protected Member Functions
virtual os_result	write (uint64_t space, const unsigned int *data32, size_t size32)

Detailed Description

IOKit: FireWire address space.

Infrastructure to open a firewire pseudo address space and handle external device I/O requests to it.

Constructor & Destructor Documentation

~address() [1/2]

virtual dxd::fw::address::~address ( )

inline

IOKit: address space destructor.

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address()

dxd::fw::address::address ( )

inline

~address() [2/2]

virtual dxd::fw::address::~address ( )

inline

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Member Function Documentation

free() [1/2]

virtual void dxd::fw::address::free ( )

inlinevirtual

IOKit address space free.

Reimplemented in dxd::fw::phy, and dxd::fw::phy.

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free() [2/2]

void dxd::fw::address::free ( )

inline

initialize() [1/2]

os_result dxd::fw::address::initialize ( ::IOFireWireUnit * iokit_fw_unit, uint64_t space, size_t size32 )

inline

IOKit: firewire address space initializer.

Allows re-initialization.

Checks for valid fw unit object,

checks firewire device state,

creates a pdeudo address space,

returns the address and

activates the firewire space.

Parameters

iokit_fw_unit	firewire unit to create the address space for
space	firewire address
size32	firewire address space size

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initialize() [2/2]

os_result dxd::fw::address::initialize ( const dxd::fw & fw, uint64_t space, size_t size32 )

inline

WDK: firewire pseudeo address space initializer.

Make sure to free the address space as long as there is a valid connection to the device object (i.e. during device::conclude() or device::sleep(). The system will crash after the driver was unloaded if the device writes into a previously allocated address space - even if the address space has been re-allocated after re-loading the driver!

Allows re-initialization.

iterates over all fifo elements and for each fifo elements:

• creates a wired backing store,

• initializes the fifo MDL pointer with the backing store MDL

• atomically inserts the fifo element at the beginning of the sequenced singly linked list of the address space

constructs the appropriate irb

and submits it to the lower device,

obtains an handle to windows representation of the spawned address space,

retrieves the actual address and length of firewire space.

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write()

virtual os_result dxd::fw::address::write ( uint64_t space, const unsigned int * data32, size_t size32 )

inlineprotectedvirtual

Member Data Documentation

size32

size_t dxd::fw::address::size32

space

uint64_t dxd::fw::address::space =0

firewire address

status

os_result dxd::fw::address::status =not_initialized

object status

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

• iokit/dxd_fw.h
• wdk/dxd_fw.h