// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

/**

 @file

 @internalComponent

*/

#include "HciCorePluginImpl.h"

#include "hciserver.h"

#include "hciserverrequestmgr.h"

#include "corehciutil.h"

#include <bluetooth/hci/hctlbase.h>

#include <bluetooth/hci/hctlinterface.h>

#include <bluetooth/hci/controllerinitialisationplugin.h>

#include <bluetooth/hci/controllerinitialisationinterface.h>

#include <bluetooth/hci/hctlpowerinterface.h>

#include <bluetooth/hci/hciframe.h>

#include <bluetooth/hci/aclpacketconsts.h>

#include <bluetooth/hci/hcidataobserver.h>

#include <bluetooth/hci/hciutil.h>

#include <bluetooth/hci/hciipc.h>

#include <bluetooth/hci/event.h>

#include <bluetooth/hcicommandqueue.h>

#include <bluetooth/logger.h>

#ifdef __FLOG_ACTIVE

_LIT8(KLogComponent, LOG_COMPONENT_COREHCI_SYMBIAN);

#endif

_LIT(KHciUtilComponentName, "corehci_symbian");

/*static*/ CCoreHCIPluginImpl* CCoreHCIPluginImpl::NewL()

	{

	LOG_STATIC_FUNC

	CCoreHCIPluginImpl* p = new(ELeave) CCoreHCIPluginImpl;

	CleanupStack::PushL(p);

	p->ConstructL();

	CleanupStack::Pop();

	return p;

	}

void CCoreHCIPluginImpl::ConstructL()

/*

Start up the HCTL plugin, then the initialisation plugin, as per the information

in section 2.3 of PREQ750_Improvements document.

*/

	{

	LOG_FUNC

	// Create HCI Utility library

	iHciUtil = CHciUtil::NewL(KHciUtilComponentName);

	// If we can't open the ini file then this will be treated in the same way

	// as not reading a valid UID from the ini file.

	TRAP_IGNORE(iHciUtil->OpenIniFileL());

	// Create Core HCI plugin

	_LIT(KSection, "Plugins");

	_LIT(KHCTLUid, "hctl_uid");

	TUid hctlImplUid = TUid::Null();

	TRAPD(err, hctlImplUid = iHciUtil->GetUidFromFileL(KSection, KHCTLUid));

	if (err == KErrNone)

		{

		// Valid UID found, load it

		iHCTLPlugin = CHCTLBase::NewL(hctlImplUid);

		}

	else

		{

		// No UID found in ini file, attempt to load single instance of 

		// implementation

		iHCTLPlugin = CHCTLBase::NewL();

		}

	// Add this as the event observer.

	MHCTLInterface* hctl = static_cast<MHCTLInterface*>(iHCTLPlugin->Interface(TUid::Uid(KHCTLInterfaceUid)));

	__ASSERT_ALWAYS(hctl, PANIC(KCoreHciPanicCat, EUninitialisedInterface));

	iHCTLHardResetPerformer = static_cast<MHardResetInitiator*>(iHCTLPlugin->Interface(TUid::Uid(KHCHardResetUid)));

	__ASSERT_ALWAYS(iHCTLHardResetPerformer, PANIC(KCoreHciPanicCat, EUninitialisedInterface));				

	// Setup observers on the HCTL.

	hctl->MhiSetEventObserver(*this);

	hctl->MhiSetChannelObserver(*this);

	hctl->MhiSetDataObserver(*this);

	hctl->MhiSetControllerStateObserver(*this);

	// Create the initialisor. The initialisor is optional so don't worry if

	// we can't load it.

	_LIT(KInitialisorUid, "initialisation_uid");

	TUid initImplUid = TUid::Null();

	TRAP(err, initImplUid = iHciUtil->GetUidFromFileL(KSection, KInitialisorUid));

	if (err == KErrNone)

		{

		// Valid UID found, load it

		iInitialisationPlugin = CControllerInitialisationPlugin::NewL(initImplUid);

		}

	else

		{

		// No UID found in ini file, attempt to load single instance of 

		// implementation

		TRAP_IGNORE(iInitialisationPlugin = CControllerInitialisationPlugin::NewL());

		}

	if(iInitialisationPlugin)

		{

		MControllerInitialisationInterface* initialisor = 

			static_cast<MControllerInitialisationInterface*>

				(iInitialisationPlugin->Interface(TUid::Uid(KControllerInitialisationInterfaceUid)));

		__ASSERT_ALWAYS(initialisor, PANIC(KCoreHciPanicCat, EUninitialisedInterface));

		initialisor->MciiSetCoreHci(*this);

		}

	iHCIServer = CHCIServer::NewL(*this);

	// The power interface is not required so iHCTLPowerInterface can be NULL after

	// the following call. Check for NULL before using iHCTLPowerInterface elsewhere.

	iHCTLPowerInterface = static_cast<MHCTLPowerInterface*>(iHCTLPlugin->Interface(TUid::Uid(KHCTLPowerInterfaceUid)));

	// Get the HCTL specific frame header and trailer octet sizes.

	hctl->MhiGetCommandTransportOverhead(iHCTLCommandHeaderSize, iHCTLCommandTrailerSize);

	hctl->MhiGetAclDataTransportOverhead(iHCTLACLHeaderSize, iHCTLACLTrailerSize);

	hctl->MhiGetSynchronousDataTransportOverhead(iHCTLSyncDataHeaderSize, iHCTLSyncDataTrailerSize);

	}

CCoreHCIPluginImpl::~CCoreHCIPluginImpl()

	{

	LOG_FUNC

	//delete in the order given in section 2.4 of PREQ750_Improvements document

	delete iInitialisationPlugin;

	delete iHCTLPlugin;	

	delete iHCIServer;

	delete iHciUtil;

	}

//Request hard reset from the stack - stack will do all the required preparation - such as notify QDP and so on, and call us back via MHardResetInitiator interface

void CCoreHCIPluginImpl::RequestHardResetFromStack()

	{

	LOG_FUNC

	__ASSERT_ALWAYS(iStackHardResetRequester, PANIC(KCoreHciPanicCat, EUninitialisedInterface));	

	iStackHardResetRequester->MhriStartHardReset();

	}

// Set Power received from the HCI server

TInt CCoreHCIPluginImpl::SetPower(TBTPowerState aState, TDesC8* /*aBuf*/)

	{

	LOG_FUNC

	if(iHCTLPowerInterface)

		{

		return iHCTLPowerInterface->MhpiSetPower(aState);

		}

	else

		{

		return KErrNotSupported;

		}

	}

// Get Power received from the HCI server

TInt CCoreHCIPluginImpl::GetPower(TBTPowerState& aState, TDesC8* /*aBuf*/)

	{

	LOG_FUNC

	if(iHCTLPowerInterface)

		{

		return iHCTLPowerInterface->MhpiGetPower(aState);

		}

	else

		{

		return KErrNotSupported;

		}

	}

TAny* CCoreHCIPluginImpl::Interface(TUid aUid)

	{

	LOG_FUNC

	TAny* ret = NULL;

	switch(aUid.iUid)

		{		

	case KCoreHciInterfaceUid:

		{		

		ret = reinterpret_cast<TAny*>(static_cast<MCoreHci*>(this));

		break;

		}

	case KHCIDataFramerInterfaceUid:

		{		

		ret = reinterpret_cast<TAny*>(static_cast<MHCIDataFramer*>(this));

		break;

		}

	case KHCICommandAllocatorInterfaceUid:

		{		

		ret = reinterpret_cast<TAny*>(static_cast<MHCICommandAllocator*>(this));

		break;

		}

	case KHCHardResetUid:

		{		

		ret = reinterpret_cast<TAny*>(static_cast<MHardResetInitiator*>(this));

		break;

		}

	case KHCTLInterfaceUid:

		{		

		ret = iHCTLPlugin->Interface(aUid);

		break;

		}

	case KControllerInitialisationInterfaceUid:

		{

		if (iInitialisationPlugin != NULL)

			{

			ret = iInitialisationPlugin->Interface(aUid);

			}

		break;

		}

	case KHCIClientUsageCallbackUid:

		{

		ret = reinterpret_cast<TAny*>(static_cast<MHCIClientUsageCallback*>(this));

		break;

		}

	default:	

		break;

		}

	return ret;

	}

void CCoreHCIPluginImpl::MhriStartHardReset()

	{

	LOG_FUNC	

	iHCTLHardResetPerformer->MhriStartHardReset();

	}

CHctlCommandFrame* CCoreHCIPluginImpl::MhcaNewFrameL()

	{

	LOG_FUNC

	return (CHctlCommandFrame::NewL(iHCTLCommandHeaderSize, iHCTLCommandTrailerSize));

	}

CHctlAclDataFrame* CCoreHCIPluginImpl::MhdfNewAclDataFrameL(TUint16 aSize)

	{

	LOG_FUNC

	return CHctlAclDataFrame::NewL(aSize, iHCTLACLHeaderSize, iHCTLACLTrailerSize);

	}

CHctlSynchronousDataFrame* CCoreHCIPluginImpl::MhdfNewSynchronousDataFrameL(TUint8 aSize)

	{

	LOG_FUNC

	return CHctlSynchronousDataFrame::NewL(aSize, iHCTLSyncDataHeaderSize, iHCTLSyncDataTrailerSize);

	}

/*virtual*/ void CCoreHCIPluginImpl::MhdfFormatAclData(CHctlAclDataFrame& aFrame, THCIConnHandle aConnH,

									TAclPacketBoundaryFlag aBoundaryFlag, TAclPacketBroadcastFlag aBroadcastFlag, 

									const TDesC8& aData)

	{

	LOG_FUNC

	THCIConnHandle handle = aConnH;

	if(aBroadcastFlag != EPointToPointOnly)

		{

		handle = 0xbca; //TODO KHCIBroadcastHandle;

		}

	aFrame.SetConnectionHandle(handle);

	aFrame.SetFlags(aBoundaryFlag, aBroadcastFlag);

	aFrame.SetDataPayload(aData); // also sets DataLength

	}

void CCoreHCIPluginImpl::MhdfFormatSynchronousData(CHctlSynchronousDataFrame& aFrame, 

												   THCIConnHandle aConnH, const TDesC8& aData)

	{

	LOG_FUNC

	THCIConnHandle handle = aConnH;

	aFrame.SetConnectionHandle(handle);

	aFrame.SetDataPayload(aData); // also sets DataLength

	}

void CCoreHCIPluginImpl::MhdoProcessAclData(const TDesC8& aData)

	{

	LOG_FUNC

	TAclPacketBoundaryFlag pbFlag = CHctlAclDataFrame::PacketBoundaryFlag(aData);

    TAclPacketBroadcastFlag bcFlag = CHctlAclDataFrame::PacketBroadcastFlag(aData);

	THCIConnHandle handle = CHctlDataFrameBase::ConnectionHandle(aData);

	iHCIDataObserver->MhdoProcessAclData(handle, pbFlag, bcFlag,

						aData.Right(aData.Length() - CHctlAclDataFrame::KHCIACLDataPacketHeaderLength));

	}

void CCoreHCIPluginImpl::MhdoProcessSynchronousData(const TDesC8& aData)

	{

	LOG_FUNC

	THCIConnHandle handle = CHctlDataFrameBase::ConnectionHandle(aData);

	iHCIDataObserver->MhdoProcessSynchronousData(handle, 0,

						aData.Right(aData.Length() - CHctlSynchronousDataFrame::KHCISynchronousDataPacketHeaderLength));

	}

void CCoreHCIPluginImpl::MheoProcessEvent(const TDesC8& aEvent)

	{

	LOG_FUNC

	if (THCIEventBase::CreateAndSendEvent(aEvent, *iCommandEventObserver, *iDataEventObserver) != KErrNone)

		{

		// If we got an error processing the event, reset the controller

		RequestHardResetFromStack();

		}

	}

void CCoreHCIPluginImpl::McsoProcessPowerChange(TInt aError, TControllerChangeType aChangeType,

												TBTPowerState aState)

	{

	LOG_FUNC

	iHCIServer->PowerControlManager().CompleteRequest(aError);

	iControllerStateObserver->McsoProcessPowerChange(aError, aChangeType, aState); //pass on up

	}

void CCoreHCIPluginImpl::McsoProcessHardResetPhaseChange(TInt aError, TControllerChangeType aChangeType,

														 TBTHardResetState aState)

	{

	LOG_FUNC

	iControllerStateObserver->McsoProcessHardResetPhaseChange(aError, aChangeType, aState); //pass on up

	}

TAny* CCoreHCIPluginImpl::MqpifQdpPluginInterface(const TUid aUid)

	{

	LOG_FUNC

	if(iHCICommandQueue)

		{

		return (iHCICommandQueue->MhcqQdpPluginInterface(aUid));

		}

	return NULL;

	}

TInt CCoreHCIPluginImpl::MchSetOption(TUint /*aName*/, const TDesC8& /*aData*/)

	{

	LOG_FUNC

	return KErrNotSupported;

	}

TInt CCoreHCIPluginImpl::MchGetOption(TUint /*aName*/, TDes8& /*aData*/)

	{

	LOG_FUNC

	return KErrNotSupported;

	}

void CCoreHCIPluginImpl::MchIoctl(TUint /*aLevel*/,TUint /*aName*/, TDes8* /*aOption*/, TAny* /*aStackSAP*/)

	{

	LOG_FUNC

	}

void CCoreHCIPluginImpl::MchCancelIoctl(TUint /*aLevel*/,TUint /*aName*/, TAny* /*aStackSAP*/)

	{

	LOG_FUNC

	}

void CCoreHCIPluginImpl::MchSetHCICommandQueue(MHCICommandQueue& aHCICommandQueue)

	{

	LOG_FUNC

	__ASSERT_DEBUG(!iHCICommandQueue, PANIC(KCoreHciPanicCat, EInterfaceAlreadyInitialised));

	iHCICommandQueue = &aHCICommandQueue;

	iHCIServer->DirectAccessManager().SetHCICommandQueue(*iHCICommandQueue);

	}

void CCoreHCIPluginImpl::MchSetPhysicalLinksState(MPhysicalLinksState& aPhysicalLinksState)

	{

	LOG_FUNC

	__ASSERT_DEBUG(!iPhysicalLinksState, PANIC(KCoreHciPanicCat, EInterfaceAlreadyInitialised));

	iPhysicalLinksState = &aPhysicalLinksState;

	}

void CCoreHCIPluginImpl::MchSetHardResetInitiator(MHardResetInitiator& aHardResetInitiator)

	{

	LOG_FUNC

	__ASSERT_DEBUG(!iStackHardResetRequester, PANIC(KCoreHciPanicCat, EInterfaceAlreadyInitialised));

	iStackHardResetRequester = &aHardResetInitiator;

	}

void CCoreHCIPluginImpl::MchSetDataEventObserver(MHCIDataEventObserver& aHCIDataEventObserver)

	{

	LOG_FUNC

	__ASSERT_DEBUG(!iDataEventObserver, PANIC(KCoreHciPanicCat, EInterfaceAlreadyInitialised));

	iDataEventObserver = &aHCIDataEventObserver;

	}

void CCoreHCIPluginImpl::MchSetDataObserver(MHCIDataObserver& aHCIDataObserver)

	{

	LOG_FUNC

	__ASSERT_DEBUG(!iHCIDataObserver, PANIC(KCoreHciPanicCat, EInterfaceAlreadyInitialised));

	iHCIDataObserver = &aHCIDataObserver;

	}

void CCoreHCIPluginImpl::MchSetCommandEventObserver(MHCICommandEventObserver& aHCICommandEventObserver)

	{

	LOG_FUNC

	__ASSERT_DEBUG(!iCommandEventObserver, PANIC(KCoreHciPanicCat, EInterfaceAlreadyInitialised));

	iCommandEventObserver = &aHCICommandEventObserver;

	}

void CCoreHCIPluginImpl::MchSetChannelObserver(MHCTLChannelObserver& aHCIChannelObserver)

	{

	LOG_FUNC

	__ASSERT_DEBUG(!iHCTLChannelObserver, PANIC(KCoreHciPanicCat, EInterfaceAlreadyInitialised));

	iHCTLChannelObserver = &aHCIChannelObserver;

	}

void CCoreHCIPluginImpl::MchSetControllerStateObserver(MControllerStateObserver& aControllerStateObserver)

	{

	LOG_FUNC

	__ASSERT_DEBUG(!iControllerStateObserver, PANIC(KCoreHciPanicCat, EInterfaceAlreadyInitialised));

	iControllerStateObserver = &aControllerStateObserver;

	}

TAny* CCoreHCIPluginImpl::MchHctlPluginInterface(const TUid aUid)

	{

	LOG_FUNC

	return iHCTLPlugin->Interface(aUid);

	}

void CCoreHCIPluginImpl::MhcoChannelOpen(THCITransportChannel aChannels)

	{

	LOG_FUNC

	// Just pass on to the upper HCLT channel observer. 

	iHCTLChannelObserver->MhcoChannelOpen(aChannels);

	}

void CCoreHCIPluginImpl::MhcoChannelClosed(THCITransportChannel aChannels)

	{

	LOG_FUNC

	// Just pass on to the upper HCTL channel observer. 

	iHCTLChannelObserver->MhcoChannelClosed(aChannels);

	}

void CCoreHCIPluginImpl::MhcucSetClientUsage(MHCIClientUsage& aClientUsage)

	{

	LOG_FUNC

	__ASSERT_DEBUG(!iClientUsage, PANIC(KCoreHciPanicCat, EInterfaceAlreadyInitialised));

	iClientUsage = &aClientUsage;

	}

void CCoreHCIPluginImpl::OpenClientReference()

	{

	LOG_FUNC

	__ASSERT_DEBUG(iClientUsage, PANIC(KCoreHciPanicCat, EUninitialisedInterface));

	if (iClientUsage)

		{

		iClientUsage->MhcuOpenClientReference();

		}

	}

void CCoreHCIPluginImpl::CloseClientReference()

	{

	LOG_FUNC

	__ASSERT_DEBUG(iClientUsage, PANIC(KCoreHciPanicCat, EUninitialisedInterface));

	if (iClientUsage)

		{

		iClientUsage->MhcuCloseClientReference();

		}

	}

// EOF