dxd::usb::stream::pipe< device_t > Class Template Reference

one endpoint's ring and request pipeline More...

#include <dxd_usb_stream.h>

Inheritance diagram for dxd::usb::stream::pipe< device_t >:

Collaboration diagram for dxd::usb::stream::pipe< device_t >:

Public Member Functions
	pipe (device_t &device, unsigned int idx, size_t size)
	~pipe () override

Protected Types
enum	type { control = ::UsbdPipeTypeControl , isoc = ::UsbdPipeTypeIsochronous , bulk = ::UsbdPipeTypeBulk , interrupt = ::UsbdPipeTypeInterrupt }

Protected Member Functions
os_result	clear ()
	WDK pipe stall reset, toggle.
direction	direction () const
os_result	max_frame_size (unsigned int frame_size)
os_result	open (const ::USBD_INTERFACE_INFORMATION *usbd_interface)
	binds the pipe to the endpoint's pipe of the given interface setting: a re-selected alternate setting renews the handles
	operator::USBD_PIPE_HANDLE () const
os_result	receive (::MDL *mdl)
	WDK: USB asynchronous irq/bulk receive request.
os_result	receive (::MDL *mdl, uint64_t &sequence, isoc_frame *frame, unsigned int frames)
os_result	transmit (const ::MDL *mdl)
	WDK: USB asynchronous irq/bulk transmit request.
os_result	transmit (const ::MDL *mdl, uint64_t &sequence, isoc_frame *frame, unsigned int frames)
type	type () const
os_result	write (const ::MDL *mdl) const
	WDK: USB synchronous isochronous write request.
template<typename data_t>
os_result	write (const data_t &data) const
os_result	write (const void *data, size_t size) const

Protected Attributes
unsigned char	address
unsigned short	frame_size {}
unsigned char	interval {1}
os_result	status {not_initialized}
	WDK pipe status.

Friends
class	dx::usb::isoc::pipeline< pipe >
struct	dx::usb::isoc::session< group< device_t > >
class	group< device_t >

Detailed Description

template<typename device_t>
class dxd::usb::stream::pipe< device_t >

one endpoint's ring and request pipeline

The group's tick at bus frame frame submits this pipe's free slot a round ahead, resubmits every polled completion a round on and moves the data: an out slot due lead frames ahead is filled from the ring into its pending request, the in slot due lead frames behind is taken ahead of its completion - completions only count. A bulk pipe keeps one receive pending and sends what the ring holds.

Member Enumeration Documentation

type

enum dxd::usb::pipe::type

inherited

bills "compiler" still does exercises - until it learnt a bit more c++ enums need to go here to be available during rest of class definition.

Enumerator
control
isoc
bulk
interrupt

Constructor & Destructor Documentation

pipe()

template<typename device_t>

dxd::usb::stream::pipe< device_t >::pipe ( device_t & device, unsigned int idx, size_t size )

inline

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~pipe()

template<typename device_t>

dxd::usb::stream::pipe< device_t >::~pipe ( )

inlineoverridevirtual

Reimplemented from dxd::usb::pipe.

Member Function Documentation

clear()

os_result dxd::usb::pipe::clear ( )

inlineinherited

WDK pipe stall reset, toggle.

direction()

direction dxd::usb::pipe::direction ( ) const

inlineinherited

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max_frame_size()

os_result dxd::usb::pipe::max_frame_size ( unsigned int frame_size )

inlineinherited

Todo

implement WDK USB max_frame_size() bandwidth adjustment

open()

os_result dxd::usb::pipe::open ( const ::USBD_INTERFACE_INFORMATION * usbd_interface )

inlineinherited

binds the pipe to the endpoint's pipe of the given interface setting: a re-selected alternate setting renews the handles

operator::USBD_PIPE_HANDLE()

dxd::usb::pipe::operator::USBD_PIPE_HANDLE ( ) const

inlineinherited

receive() [1/2]

os_result dxd::usb::pipe::receive ( ::MDL * mdl )

inlineinherited

WDK: USB asynchronous irq/bulk receive request.

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receive() [2/2]

os_result dxd::usb::pipe::receive ( ::MDL * mdl, uint64_t & sequence, isoc_frame * frame, unsigned int frames )

inlineinherited

Parameters

mdl	memory descriptor of the data to be read

transmit() [1/2]

os_result dxd::usb::pipe::transmit ( const ::MDL * mdl )

inlineinherited

WDK: USB asynchronous irq/bulk transmit request.

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transmit() [2/2]

os_result dxd::usb::pipe::transmit ( const ::MDL * mdl, uint64_t & sequence, isoc_frame * frame, unsigned int frames )

inlineinherited

Parameters

mdl	memory descriptor of the data to be written

type()

type dxd::usb::pipe::type ( ) const

inlineinherited

write() [1/3]

os_result dxd::usb::pipe::write ( const ::MDL * mdl ) const

inlineinherited

WDK: USB synchronous isochronous write request.

Todo

return number of written bytes

WDK: USB synchronous irq/bulk write request

Todo

return number of written bytes

write() [2/3]

template<typename data_t>

os_result dxd::usb::pipe::write ( const data_t & data ) const

inlineinherited

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write() [3/3]

os_result dxd::usb::pipe::write ( const void * data, size_t size ) const

inlineinherited

Friends And Related Symbol Documentation

dx::usb::isoc::pipeline< pipe >

template<typename device_t>

friend class dx::usb::isoc::pipeline< pipe >

friend

dx::usb::isoc::session< group< device_t > >

template<typename device_t>

friend struct dx::usb::isoc::session< group< device_t > >

friend

group< device_t >

template<typename device_t>

friend class group< device_t >

friend

Member Data Documentation

address

unsigned char dxd::usb::pipe::address

inherited

frame_size

unsigned short dxd::usb::pipe::frame_size {}

inherited

interval

unsigned char dxd::usb::pipe::interval {1}

inherited

status

os_result dxd::usb::pipe::status {not_initialized}

inherited

WDK pipe status.

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

• dxd_usb_stream.h