sl@0: // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // e32\include\drivers\usbcshared.inl
sl@0: // Kernel side definitions for the USB Device driver stack (PIL + LDD).
sl@0: // 
sl@0: //
sl@0: 
sl@0: /**
sl@0:  @file usbcshared.inl
sl@0:  @internalTechnology
sl@0: */
sl@0: 
sl@0: #ifndef __USBCSHARED_INL__
sl@0: #define __USBCSHARED_INL__
sl@0: 
sl@0: //
sl@0: // --- DUsbClientController (USB PDD) ---
sl@0: //
sl@0: 
sl@0: // --- Private member functions, used by controller itself ---
sl@0: 
sl@0: const DBase* DUsbClientController::PEndpoint2ClientId(TInt aRealEndpoint) const
sl@0: 	{
sl@0: 	if (iRealEndpoints[aRealEndpoint].iLEndpoint)
sl@0: 		return iRealEndpoints[aRealEndpoint].iLEndpoint->iInterface->iInterfaceSet->iClientId;
sl@0: 	else
sl@0: 		return NULL;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TInt DUsbClientController::PEndpoint2LEndpoint(TInt aRealEndpoint) const
sl@0: 	{
sl@0: 	if (iRealEndpoints[aRealEndpoint].iLEndpoint)
sl@0: 		return iRealEndpoints[aRealEndpoint].iLEndpoint->iLEndpointNum;
sl@0: 	else
sl@0: 		return -1;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: const TUsbcConfiguration* DUsbClientController::CurrentConfig() const
sl@0: 	{
sl@0: 	return (iCurrentConfig ? iConfigs[iCurrentConfig - 1] : NULL);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TUsbcConfiguration* DUsbClientController::CurrentConfig()
sl@0: 	{
sl@0: 	return (iCurrentConfig ? iConfigs[iCurrentConfig - 1] : NULL);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TBool DUsbClientController::InterfaceExists(TInt aNumber) const
sl@0: 	{
sl@0: 	const TInt num_ifcsets = iConfigs[0]->iInterfaceSets.Count();
sl@0: 	RPointerArray<TUsbcInterfaceSet>& ifcsets = iConfigs[0]->iInterfaceSets;
sl@0: 	for (TInt i = 0; i < num_ifcsets; i++)
sl@0: 		{
sl@0: 		if (ifcsets[i]->iInterfaceNumber == aNumber)
sl@0: 			{
sl@0: 			return ETrue;
sl@0: 			}
sl@0: 		}
sl@0: 	return EFalse;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TBool DUsbClientController::EndpointExists(TUint aAddress) const
sl@0: 	{
sl@0: 	// Ep0 doesn't have a "logical ep" pointer (there's no virtual endpoint zero);
sl@0: 	// that's why this pointer being non-NULL is not a sufficient criterion for
sl@0: 	// endpoint-existence. (Apart from that, ep0 always exists.)
sl@0: 	const TInt idx = EpAddr2Idx(aAddress);
sl@0: 	return ((idx < iDeviceTotalEndpoints) &&
sl@0: 			((iRealEndpoints[idx].iLEndpoint != NULL) ||
sl@0: 			 ((aAddress & KUsbEpAddress_Portmask) == 0)));
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void DUsbClientController::Buffer2Setup(const TAny* aBuf, TUsbcSetup& aSetup) const
sl@0: 	{
sl@0: 	// TUint8 index
sl@0: 	aSetup.iRequestType = static_cast<const TUint8*>(aBuf)[0];
sl@0: 	aSetup.iRequest		= static_cast<const TUint8*>(aBuf)[1];
sl@0: 	// TUint16 index from here!
sl@0: 	aSetup.iValue  = SWAP_BYTES_16((static_cast<const TUint16*>(aBuf))[1]);
sl@0: 	aSetup.iIndex  = SWAP_BYTES_16((static_cast<const TUint16*>(aBuf))[2]);
sl@0: 	aSetup.iLength = SWAP_BYTES_16((static_cast<const TUint16*>(aBuf))[3]);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TUint DUsbClientController::EpIdx2Addr(TUint aRealEndpoint) const
sl@0: 	{
sl@0: 	return ((aRealEndpoint << 7) & 0x80) | ((aRealEndpoint >> 1) & 0x0f);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TUint DUsbClientController::EpAddr2Idx(TUint aAddress) const
sl@0: 	{
sl@0: 	return ((aAddress & 0x80) >> 7) | ((aAddress & 0x0f) << 1);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void DUsbClientController::SetEp0DataOutVars(const TUsbcSetup& aPacket, const DBase* aClientId)
sl@0: 	{
sl@0: 	__KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::SetEp0DataOutVars()"));
sl@0: 	iSetup = aPacket;
sl@0: 	iEp0DataReceiving = ETrue;
sl@0: 	iEp0DataReceived = 0;
sl@0: 	iEp0ClientId = aClientId;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void DUsbClientController::ResetEp0DataOutVars()
sl@0: 	{
sl@0: 	__KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ResetEp0DataOutVars()"));
sl@0: 	iEp0DataReceiving = EFalse;
sl@0: 	iEp0DataReceived = 0;
sl@0: 	iEp0ClientId = NULL;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TBool DUsbClientController::IsInTheRequestList(const TUsbcRequestCallback& aCallback)
sl@0: 	{
sl@0: 	const TInt irq = NKern::DisableAllInterrupts();
sl@0: 	TSglQueIter<TUsbcRequestCallback> iter(iEp0ReadRequestCallbacks);
sl@0: 	TUsbcRequestCallback* p;
sl@0: 	while ((p = iter++) != NULL)
sl@0: 		{
sl@0: 		if (p == &aCallback)
sl@0: 			{
sl@0: 			NKern::RestoreInterrupts(irq);
sl@0: 			return ETrue;
sl@0: 			}
sl@0: 		}
sl@0: 	NKern::RestoreInterrupts(irq);
sl@0: 	return EFalse;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TBool DUsbClientController::IsInTheStatusList(const TUsbcStatusCallback& aCallback)
sl@0: 	{
sl@0: 	const TInt irq = NKern::DisableAllInterrupts();
sl@0: 	TSglQueIter<TUsbcStatusCallback> iter(iStatusCallbacks);
sl@0: 	TUsbcStatusCallback* p;
sl@0: 	while ((p = iter++) != NULL)
sl@0: 		{
sl@0: 		if (p == &aCallback)
sl@0: 			{
sl@0: 			NKern::RestoreInterrupts(irq);
sl@0: 			return ETrue;
sl@0: 			}
sl@0: 		}
sl@0: 	NKern::RestoreInterrupts(irq);
sl@0: 	return EFalse;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TBool DUsbClientController::IsInTheEpStatusList(const TUsbcEndpointStatusCallback& aCallback)
sl@0: 	{
sl@0: 	const TInt irq = NKern::DisableAllInterrupts();
sl@0: 	TSglQueIter<TUsbcEndpointStatusCallback> iter(iEpStatusCallbacks);
sl@0: 	TUsbcEndpointStatusCallback* p;
sl@0: 	while ((p = iter++) != NULL)
sl@0: 		{
sl@0: 		if (p == &aCallback)
sl@0: 			{
sl@0: 			NKern::RestoreInterrupts(irq);
sl@0: 			return ETrue;
sl@0: 			}
sl@0: 		}
sl@0: 	NKern::RestoreInterrupts(irq);
sl@0: 	return EFalse;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TBool DUsbClientController::IsInTheOtgFeatureList(const TUsbcOtgFeatureCallback& aCallback)
sl@0: 	{
sl@0: 	const TInt irq = NKern::DisableAllInterrupts();
sl@0: 	TSglQueIter<TUsbcOtgFeatureCallback> iter(iOtgCallbacks);
sl@0: 	TUsbcOtgFeatureCallback* p;
sl@0: 	while ((p = iter++) != NULL)
sl@0: 		{
sl@0: 		if (p == &aCallback)
sl@0: 			{
sl@0: 			NKern::RestoreInterrupts(irq);
sl@0: 			return ETrue;
sl@0: 			}
sl@0: 		}
sl@0: 	NKern::RestoreInterrupts(irq);
sl@0: 	return EFalse;
sl@0: 	}
sl@0: 
sl@0: //
sl@0: // --- Misc classes ---
sl@0: //
sl@0: 
sl@0: // --- TUsbcClientCallback
sl@0: 
sl@0: /** Constructor.
sl@0:  */
sl@0: TUsbcClientCallback::TUsbcClientCallback(DBase* aOwner, TDfcFn aCallback, TInt aPriority)
sl@0: 	: iOwner(aOwner),
sl@0: 	  iDfc(aCallback, aOwner, aPriority)
sl@0: 	{}
sl@0: 
sl@0: 
sl@0: /** Returns a pointer to the owner of this request.
sl@0: 
sl@0: 	@return A pointer to the owner of this request.
sl@0: */
sl@0: DBase* TUsbcClientCallback::Owner() const
sl@0: 	{
sl@0: 	return iOwner;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Executes the callback function set by the owner of this request.
sl@0: 
sl@0: 	@return KErrNone.
sl@0: */
sl@0: TInt TUsbcClientCallback::DoCallback()
sl@0: 	{
sl@0: 	__ASSERT_DEBUG((NKern::CurrentContext() == EThread), Kern::Fault(KUsbPILPanicCat, __LINE__));
sl@0: 	iDfc.Enque();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Cancels the callback function set by the owner of this request.
sl@0:  */
sl@0: void TUsbcClientCallback::Cancel()
sl@0: 	{
sl@0: 	iDfc.Cancel();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Sets the DFC queue used by the callback function.
sl@0: 	@param aDfcQ DFC queue to be set
sl@0:  */
sl@0: void TUsbcClientCallback::SetDfcQ(TDfcQue* aDfcQ)
sl@0: 	{
sl@0: 	iDfc.SetDfcQ(aDfcQ);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: // --- TUsbcEndpointStatusCallback
sl@0: 
sl@0: /** Constructor.
sl@0:  */
sl@0: TUsbcEndpointStatusCallback::TUsbcEndpointStatusCallback(DBase* aOwner, TDfcFn aCallback,
sl@0: 														 TInt aPriority)
sl@0: 	: iOwner(aOwner),
sl@0: 	  iDfc(aCallback, aOwner, aPriority),
sl@0: 	  iState(0)
sl@0: 	{}
sl@0: 
sl@0: 
sl@0: /** Sets the state of this request to aState.
sl@0: 
sl@0: 	@param aState The new state to be set.
sl@0: */
sl@0: void TUsbcEndpointStatusCallback::SetState(TUint aState)
sl@0: 	{
sl@0: 	iState = aState;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Returns the state value of this request.
sl@0: 
sl@0: 	@return The state value of this request.
sl@0: */
sl@0: TUint TUsbcEndpointStatusCallback::State() const
sl@0: 	{
sl@0: 	return iState;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Returns a pointer to the owner of this request.
sl@0: 
sl@0: 	@return A pointer to the owner of this request.
sl@0: */
sl@0: DBase* TUsbcEndpointStatusCallback::Owner() const
sl@0: 	{
sl@0: 	return iOwner;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Executes the callback function set by the owner of this request.
sl@0: 
sl@0: 	@return KErrNone.
sl@0: */
sl@0: TInt TUsbcEndpointStatusCallback::DoCallback()
sl@0: 	{
sl@0: 	if (NKern::CurrentContext() == EThread)
sl@0: 		iDfc.Enque();
sl@0: 	else
sl@0: 		iDfc.Add();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Cancels the callback function set by the owner of this request.
sl@0: */
sl@0: void TUsbcEndpointStatusCallback::Cancel()
sl@0: 	{
sl@0: 	iDfc.Cancel();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Sets the DFC queue used by the callback function.
sl@0: */
sl@0: void TUsbcEndpointStatusCallback::SetDfcQ(TDfcQue* aDfcQ)
sl@0: 	{
sl@0: 	iDfc.SetDfcQ(aDfcQ);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: // --- TUsbcStatusCallback
sl@0: 
sl@0: /** Constructor.
sl@0:  */
sl@0: TUsbcStatusCallback::TUsbcStatusCallback(DBase* aOwner, TDfcFn aCallback, TInt aPriority)
sl@0: 	: iOwner(aOwner),
sl@0: 	  iDfc(aCallback, aOwner, aPriority)
sl@0: 	{
sl@0:  	ResetState();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Sets the state of this request to aState (at the first available position
sl@0: 	in the state value array).
sl@0: 
sl@0: 	@param aState The new state to be set.
sl@0: */
sl@0: void TUsbcStatusCallback::SetState(TUsbcDeviceState aState)
sl@0: 	{
sl@0: 	for (TInt i = 0; i < KUsbcDeviceStateRequests; i++)
sl@0: 		{
sl@0: 		if (iState[i] == EUsbcNoState)
sl@0: 			{
sl@0: 			iState[i] = aState;
sl@0: 			return;
sl@0: 			}
sl@0: 		}
sl@0: 	__KTRACE_OPT(KPANIC, Kern::Printf("  Error: KUsbcDeviceStateRequests too small (%d)!",
sl@0: 									  KUsbcDeviceStateRequests));
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Returns the state value of this request at a certain index.
sl@0: 
sl@0: 	@param aIndex The index to be used for referencing the state array.
sl@0: 
sl@0: 	@return The state value of this request at aIndex.
sl@0: */
sl@0: TUsbcDeviceState TUsbcStatusCallback::State(TInt aIndex) const
sl@0: 	{
sl@0: 	if (aIndex >= 0 && aIndex < KUsbcDeviceStateRequests)
sl@0: 		{
sl@0: 		return iState[aIndex];
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		__KTRACE_OPT(KPANIC, Kern::Printf("  Error: aIndex too large (%d)!", aIndex));
sl@0: 		return EUsbcNoState;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Resets the entire state value array of this request.
sl@0: */
sl@0: void TUsbcStatusCallback::ResetState()
sl@0: 	{
sl@0: 	for (TInt i = 0; i < KUsbcDeviceStateRequests; ++i)
sl@0: 		{
sl@0: 		iState[i] = EUsbcNoState;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Returns a pointer to the owner of this request.
sl@0: 
sl@0: 	@return A pointer to the owner of this request.
sl@0: */
sl@0: DBase* TUsbcStatusCallback::Owner() const
sl@0: 	{
sl@0: 	return iOwner;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Executes the callback function set by the owner of this request.
sl@0: 
sl@0: 	@return KErrNone.
sl@0: */
sl@0: TInt TUsbcStatusCallback::DoCallback()
sl@0: 	{
sl@0: 	if (NKern::CurrentContext() == EThread)
sl@0: 		iDfc.Enque();
sl@0: 	else
sl@0: 		iDfc.Add();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Cancels the callback function set by the owner of this request.
sl@0: */
sl@0: void TUsbcStatusCallback::Cancel()
sl@0: 	{
sl@0: 	iDfc.Cancel();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Sets the DFC queue used by the callback function.
sl@0: */
sl@0: void TUsbcStatusCallback::SetDfcQ(TDfcQue* aDfcQ)
sl@0: 	{
sl@0: 	iDfc.SetDfcQ(aDfcQ);
sl@0: 	}
sl@0: 
sl@0: // --- TUsbcRequestCallback
sl@0: 
sl@0: /** Constructor.
sl@0:  */
sl@0: TUsbcRequestCallback::TUsbcRequestCallback(const DBase* aOwner, TInt aEndpointNum, TDfcFn aDfcFunc,
sl@0: 										   TAny* aEndpoint, TDfcQue* aDfcQ, TInt aPriority)
sl@0: 	: iEndpointNum(aEndpointNum),
sl@0: 	  iRealEpNum(-1),
sl@0: 	  iOwner(aOwner),
sl@0: 	  iDfc(aDfcFunc, aEndpoint, aDfcQ, aPriority),
sl@0: 	  iTransferDir(EControllerNone),
sl@0: 	  iBufferStart(NULL),
sl@0: 	  iPacketIndex(NULL),							  // actually TUint16 (*)[]
sl@0: 	  iPacketSize(NULL),							  // actually TUint16 (*)[]
sl@0: 	  iLength(0),
sl@0: 	  iZlpReqd(EFalse),
sl@0: 	  iTxBytes(0),
sl@0: 	  iRxPackets(0),
sl@0: 	  iError(KErrNone)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Destructor.
sl@0:  */
sl@0: TUsbcRequestCallback::~TUsbcRequestCallback()
sl@0: 	{
sl@0: 	__KTRACE_OPT(KUSB, Kern::Printf("TUsbcRequestCallback::~TUsbcRequestCallback()"));
sl@0: 	iDfc.Cancel();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Sets some data members of this request for a read request.
sl@0: 
sl@0: 	@param aBufferStart The start of the data buffer to be filled.
sl@0: 	@param aBufferAddr The physical address of the buffer (used for DMA).
sl@0: 	@param aPacketIndex A pointer to the packet index values array.
sl@0: 	@param aPacketSize A pointer to the packet size values array.
sl@0: 	@param aLength The number of bytes to be received.
sl@0: */
sl@0: void TUsbcRequestCallback::SetRxBufferInfo(TUint8* aBufferStart, TPhysAddr aBufferAddr,
sl@0: 										   TUsbcPacketArray* aPacketIndex,
sl@0: 										   TUsbcPacketArray* aPacketSize,
sl@0: 										   TInt aLength)
sl@0: 	{
sl@0: 	iTransferDir = EControllerRead;
sl@0: 	iBufferStart = aBufferStart;
sl@0: 	iBufferAddr = aBufferAddr;
sl@0: 	iPacketIndex = aPacketIndex;
sl@0: 	iPacketSize = aPacketSize;
sl@0: 	iLength = aLength;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Sets some data members of this request for a write request.
sl@0: 
sl@0: 	@param aBufferStart The start of the buffer that contains the data to be sent.
sl@0: 	@param aBufferAddr The physical address of the buffer (used for DMA).
sl@0: 	@param aLength The number of bytes to be transmitted.
sl@0: */
sl@0: void TUsbcRequestCallback::SetTxBufferInfo(TUint8* aBufferStart, TPhysAddr aBufferAddr, TInt aLength)
sl@0: 	{
sl@0: 	iTransferDir = EControllerWrite;
sl@0: 	iBufferStart = aBufferStart;
sl@0: 	iBufferAddr = aBufferAddr;
sl@0: 	iLength = aLength;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Sets the transfer direction for this request.
sl@0: 
sl@0: 	@param aTransferDir The new transfer direction.
sl@0: */
sl@0: void TUsbcRequestCallback::SetTransferDirection(TTransferDirection aTransferDir)
sl@0: 	{
sl@0: 	iTransferDir = aTransferDir;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Returns a pointer to the owner of this request.
sl@0: 
sl@0: 	@return A pointer to the owner of this request.
sl@0: */
sl@0: const DBase* TUsbcRequestCallback::Owner() const
sl@0: 	{
sl@0: 	return iOwner;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Executes the callback function set by the owner of this request.
sl@0: 
sl@0: 	@return KErrNone.
sl@0: */
sl@0: TInt TUsbcRequestCallback::DoCallback()
sl@0: 	{
sl@0: 	if (NKern::CurrentContext() == NKern::EThread)
sl@0: 		iDfc.Enque();
sl@0: 	else
sl@0: 		iDfc.Add();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Cancels the callback function set by the owner of this request.
sl@0: */
sl@0: void TUsbcRequestCallback::Cancel()
sl@0: 	{
sl@0: 	iDfc.Cancel();
sl@0: 	}
sl@0: 
sl@0: // --- TUsbcOtgFeatureCallback
sl@0: 
sl@0: /** Constructor.
sl@0:  */
sl@0: TUsbcOtgFeatureCallback::TUsbcOtgFeatureCallback(DBase* aOwner, TDfcFn aCallback,
sl@0: 												 TInt aPriority)
sl@0: 	: iOwner(aOwner),
sl@0: 	  iDfc(aCallback, aOwner, aPriority),
sl@0: 	  iValue(0)
sl@0: 	{}
sl@0: 
sl@0: 
sl@0: /** Returns a pointer to the owner of this request.
sl@0: 	@return A pointer to the owner of this request.
sl@0: */
sl@0: DBase* TUsbcOtgFeatureCallback::Owner() const
sl@0: 	{
sl@0: 	return iOwner;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Set feature value which is to be notified to client.
sl@0: 	@param OTG feature value to be set
sl@0: */
sl@0: void TUsbcOtgFeatureCallback::SetFeatures(TUint8 aFeatures)
sl@0: 	{
sl@0: 	iValue = aFeatures;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Set feature value which is to be notified to client.
sl@0: 	@return Value of OTG features
sl@0: */
sl@0: TUint8 TUsbcOtgFeatureCallback::Features() const
sl@0: 	{
sl@0: 	return iValue;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Set DFC queue.
sl@0: 	@param aDfcQ  DFC queue to be set
sl@0: */ 
sl@0: void TUsbcOtgFeatureCallback::SetDfcQ(TDfcQue* aDfcQ)
sl@0: 	{
sl@0: 	iDfc.SetDfcQ(aDfcQ);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Executes the callback function set by the owner of this request.
sl@0: 	@return KErrNone.
sl@0: */
sl@0: TInt TUsbcOtgFeatureCallback::DoCallback()
sl@0: 	{
sl@0: 	if (NKern::CurrentContext() == EThread)
sl@0: 		iDfc.Enque();
sl@0: 	else
sl@0: 		iDfc.Add();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Cancels the callback function set by the owner of this request.
sl@0:  */
sl@0: void TUsbcOtgFeatureCallback::Cancel()
sl@0: 	{
sl@0: 	iDfc.Cancel();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Returns a pointer to the currently selected (active) setting of this interface.
sl@0: 
sl@0: 	@return A pointer to the currently selected (active) setting of this interface.
sl@0: */
sl@0: const TUsbcInterface* TUsbcInterfaceSet::CurrentInterface() const
sl@0: 	{
sl@0: 	return iInterfaces[iCurrentInterface];
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /** Returns a pointer to the currently selected (active) setting of this interface.
sl@0: 
sl@0: 	@return A pointer to the currently selected (active) setting of this interface.
sl@0: */
sl@0: 
sl@0: TUsbcInterface* TUsbcInterfaceSet::CurrentInterface()
sl@0: 	{
sl@0: 	return iInterfaces[iCurrentInterface];
sl@0: 	}
sl@0: 
sl@0: 
sl@0: #endif // __USBCSHARED_INL__
sl@0: 
sl@0: 
sl@0: