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RFrameXferBlockProtocolStack Class Reference

class RFrameXferBlockProtocolStack : public RFrameXferBlock

Ethernet frame transfer context block between user and kernel space for the protocol stack side client

Inherits from

Public Member Functions
void UserInitialize ( TUint32 )
Private Member Functions
RFrameXferBlockProtocolStack ()
RFrameXferBlockProtocolStack (const RFrameXferBlockProtocolStack &)
TBool TxFlowControl ( TQueueId , TBool )
TBool TxPossible (const TWhaTxQueueState &, TQueueId &)
RFrameXferBlockProtocolStack & operator= (const RFrameXferBlockProtocolStack &)
Inherited Functions
RFrameXferBlock::AppendTxDataBuffer(const TUint8 *,TUint32,TDataBuffer::TFrameType,TUint8,TBool,const TMacAddress *)
RFrameXferBlock::ClearTxDataBuffer()
RFrameXferBlock::SetTxDataBufferField(TLinAddr)
RFrameXferBlockBase::GetNextRxDataBuffer(TDataBuffer *&)
RFrameXferBlockBase::SetRxDataChunkField(TLinAddr)
Private Attributes
RWlanCircularBuffer < KBackgroundTxQueueLen > iBackgroundTxQueue
RWlanCircularBuffer < KBestEffortTxQueueLen > iBestEffortTxQueue
TDataBuffer iDataBuffers
RWlanCircularBuffer < KTxPoolSizeInPackets > iFreeQueue
TUint32 iThisAddrKernelSpace
TUint32 iThisAddrUserSpace
TInt32 iUserToKernAddrOffset
RWlanCircularBuffer < KVideoTxQueueLen > iVideoTxQueue
RWlanCircularBuffer < KVoiceTxQueueLen > iVoiceTxQueue
Inherited Attributes
RFrameXferBlockBase::iCurrentRxBuffer
RFrameXferBlockBase::iFirstRxBufferToFree
RFrameXferBlockBase::iNumOfCompleted
RFrameXferBlockBase::iRxCompletedBuffers
RFrameXferBlockBase::iRxDataChunk
RFrameXferBlockBase::iTxOffset

Constructor & Destructor Documentation

RFrameXferBlockProtocolStack()

RFrameXferBlockProtocolStack ( ) [private]

Prohibit default constructor

RFrameXferBlockProtocolStack(const RFrameXferBlockProtocolStack &)

RFrameXferBlockProtocolStack ( const RFrameXferBlockProtocolStack & ) [private]

Prohibit copy constructor

Parameters

const RFrameXferBlockProtocolStack &

Member Functions Documentation

TxFlowControl(TQueueId, TBool)

TBool TxFlowControl ( TQueueId aTxQueue,
TBool aUserDataTxEnabled
) [private]

Determines if the Tx flow from client needs to be stopped

Parameters

TQueueId aTxQueue Tx queue to which the latest packet was added
TBool aUserDataTxEnabled ETrue if user data Tx is enabled EFalse otherwise return EFalse if Tx flow needs to be stopped ETrue otherwise

TxPossible(const TWhaTxQueueState &, TQueueId &)

TBool TxPossible ( const TWhaTxQueueState & aWhaTxQueueState,
TQueueId & aQueueId
) [private]

With the current WLAN LDD Tx queue contents and WHA queue status, is it possible to schedule a new Tx packet

Parameters

const TWhaTxQueueState & aWhaTxQueueState Status of all WHA Tx queues (full/not full)
TQueueId & aQueueId Upon returning ETrue, denotes the WLAN LDD queue from which a packet can be scheduled

UserInitialize(TUint32)

void UserInitialize ( TUint32 aThisAddrUserSpace ) [inline]

Initializes TX Data pool, with the address of this in user space.

Parameters

TUint32 aThisAddrUserSpace Address of this object in user space.

operator=(const RFrameXferBlockProtocolStack &)

RFrameXferBlockProtocolStack & operator= ( const RFrameXferBlockProtocolStack & ) [private]

Prohibit assigment operator

Parameters

const RFrameXferBlockProtocolStack &

Member Data Documentation

RWlanCircularBuffer< KBackgroundTxQueueLen > iBackgroundTxQueue

RWlanCircularBuffer < KBackgroundTxQueueLen > iBackgroundTxQueue [private]

Tx Queue for Background priority frames

RWlanCircularBuffer< KBestEffortTxQueueLen > iBestEffortTxQueue

RWlanCircularBuffer < KBestEffortTxQueueLen > iBestEffortTxQueue [private]

Tx Queue for Best Effort priority frames

TDataBuffer iDataBuffers

TDataBuffer iDataBuffers [private]

Tx frame meta header objects

RWlanCircularBuffer< KTxPoolSizeInPackets > iFreeQueue

RWlanCircularBuffer < KTxPoolSizeInPackets > iFreeQueue [private]

Free Queue

TUint32 iThisAddrKernelSpace

TUint32 iThisAddrKernelSpace [private]

Address of this object instance in the kernel mode address space

TUint32 iThisAddrUserSpace

TUint32 iThisAddrUserSpace [private]

Address of this object instance in the user mode address space

TInt32 iUserToKernAddrOffset

TInt32 iUserToKernAddrOffset [private]

the offset from a User space address to the corresponding address in the Kernel space in the shared memory chunk. May also be negative

RWlanCircularBuffer< KVideoTxQueueLen > iVideoTxQueue

RWlanCircularBuffer < KVideoTxQueueLen > iVideoTxQueue [private]

Tx Queue for Video priority frames

RWlanCircularBuffer< KVoiceTxQueueLen > iVoiceTxQueue

RWlanCircularBuffer < KVoiceTxQueueLen > iVoiceTxQueue [private]

Tx Queue for Voice priority frames

Copyright ©2010 Nokia Corporation and/or its subsidiary(-ies).
All rights reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License v1.0.