// Copyright (c) 2004-2009 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:
//

#include <mmfbtswcodecwrapper.h> //for SwCodecWrapper CustomInterfaces
#include <mmfbtswcodecwrappercustominterfacesuids.hrh>
#include <mmf/plugin/mmfbthwdeviceimplementationuids.hrh>
// Test only
#include <bttypes.h>
#include <centralrepository.h>	// for BT device address retrieval
#include "MmfBtRoutingPrioritySettings.h" //for ESpeaker, EA2DPBluetoothHeadset etc

/*
 *	[TODO] this function is now too long to be inline
 *	Initializes DevSound object for the mode aMode for processing audio data
 *	with hardware device aHWDev.
 *
 *	On completion of Initialization, the observer will be notified via call back
 *	InitializeComplete().
 *
 *	Leaves on failure.
 *  
 *	@param	"MDevSoundObserver& aDevSoundObserver"
 *			A reference to DevSound Observer instance.
 *
 *	@param	"TUid aHWDev"
 *			CMMFHwDevice implementation identifier.
 *
 *	@param	"TMMFState aMode"
 *			Mode for which this object will be used.
 *
 */
inline void CMMFDevSoundSvrImp::InitializeL(MDevSoundObserver& aDevSoundObserver, TUid aHWDev, TMMFState aMode)
	{
	TInt initError = KErrNone;
	iDevSoundObserver = &aDevSoundObserver;

	if (aMode == EMMFStateIdle)
		{
		User::Leave(KErrNotSupported);
		}
	iMode = aMode;

	// Given the mode, update the iDevInfo with the audio's route
	if ((iMode == EMMFStateRecording)||(iMode == EMMFStatePlayingRecording))
		{//DEF037912 incase the recording capabilities differ from play
		User::LeaveIfError(InitializeFormat(iRecordFormatsSupported, iRecordFormat));
		iDevInfo.iInStream.iConnection.iType = EConnectionGpp;
		iDevInfo.iInStream.iConnection.iId = KDeviceUidMic.iUid;
		}
	if ((iMode == EMMFStatePlaying)||(iMode == EMMFStateTonePlaying)||(iMode == EMMFStatePlayingRecording))
		{
		iDevInfo.iOutStream.iConnection.iType = EConnectionGpp;
		// If the bit on the priority settings is set indicating
		// we are routing to the by headset then the HwDevice device id
		// needs setting for the bluetooth headset
		if (iAudioPolicyPrioritySettings.iPref & EA2DPBluetoothHeadset)
			{
			iDevInfo.iOutStream.iConnection.iId = KDeviceUidA2dpHeadset.iUid;
			CRepository* centralRepository = NULL;
			centralRepository = CRepository::NewL(KUidBTHeadsetRepository);
			CleanupStack::PushL(centralRepository);
			TInt64 btHeadsetAddress = 0;
			TBuf<16> btHeadsetAddressString;
			User::LeaveIfError(centralRepository->Get(0x01, btHeadsetAddressString));
			TLex stringConverter(btHeadsetAddressString.Ptr());
			User::LeaveIfError(stringConverter.Val(btHeadsetAddress,EHex));
			TBTDevAddr bTDevAddr(btHeadsetAddress);
			iDevInfo.iOutStream.iDeviceName = bTDevAddr.Des();
			CleanupStack::Pop(centralRepository);
			delete centralRepository;
			}
		else
			{
			iDevInfo.iOutStream.iConnection.iId = KDeviceUidSpeaker.iUid;
			}	
		}

	iDevSoundObserver = &aDevSoundObserver;
	iHwDeviceID.iUid = aHWDev.iUid;
    if(iCMMFHwDevice)
		{
		delete iCMMFHwDevice;
		iHwDeviceBuffer = NULL; // buffer is deleted by HwDevice delete
		iPlayCustomInterface = NULL; //custom interfaces are also invalid
		iRecordCustomInterface = NULL;
		}
    
    iCMMFHwDevice = NULL;

	// Load the HwDevice implementation from ECom
	TRAP(initError, iCMMFHwDevice = CMMFHwDevice2::NewL(aHWDev));

	if (initError == KErrNone)
		{	
		iDevInfo.iHwDeviceObserver = this;
	
		iCMMFHwDevice->Init(iDevInfo, iRSDHandler->iStatus);
		iRSDHandler->Start();
		
		TUid playCustomInterfaceUid;
		playCustomInterfaceUid.iUid = KMmfPlaySettingsCustomInterface;
		TUid recordCustomInterfaceUid;
		recordCustomInterfaceUid.iUid = KMmfRecordSettingsCustomInterface;
		iPlayCustomInterface = 
			(MPlayCustomInterface*)iCMMFHwDevice->CustomInterface(playCustomInterfaceUid);
		if (!iPlayCustomInterface) 
			{//DEF40443 need to check custom interface has been created
			initError = KErrNoMemory;//it won't if there is no memory
			}
		else
			{
			iRecordCustomInterface = 
				(MRecordCustomInterface*)iCMMFHwDevice->CustomInterface(recordCustomInterfaceUid);
			if (!iRecordCustomInterface)
				{
				initError = KErrNoMemory;
				}
			}
		} 

	if (initError)
		{
		iDevSoundObserver->InitializeComplete(initError);  
		User::Leave(initError);
		}
	}

/*
 *
 *	Initializes DevSound object for the mode aMode for processing audio data
 *	using an array of Hardware devices identified by aHWDevArray identifier
 *	array. The hardware devices are chained together with data flow starting
 *	with first array element.
 *
 *	On completion of Initialization, the observer will be notified via call back
 *	InitializeComplete().
 *
 *	Leaves on failure.
 *  
 *	@param	"MDevSoundObserver& aDevSoundObserver"
 *			A reference to DevSound Observer instance.
 *
 *	@param	"CArrayPtr<TUid> aHWDevArray"
 *			Array of CMMFHwDevice implementation identifiers.
 *
 *	@param	"TMMFState aMode"
 *			Mode for which this object will be used.
 *
 */
inline void CMMFDevSoundSvrImp::InitializeL(MDevSoundObserver& /*aDevSoundObserver*/, CArrayPtr<TUid> /*aHWDevArray*/, TMMFState /*aMode*/)
	{
	User::Leave(KErrNotSupported);
	}

/*
 *
 *	Initializes DevSound object for the mode aMode for processing audio data
 *	with hardware device supporting FourCC aDesiredFourCC.
 *
 *	On completion of Initialization, the observer will be notified via call back
 *	InitializeComplete().
 *
 *	Leaves on failure.
 *  
 *	@param	"MDevSoundObserver& aDevSoundObserver"
 *			A reference to DevSound Observer instance.
 *
 *	@param	"TFourCC aDesiredFourCC"
 *			CMMFHwDevice implementation FourCC.
 *
 *	@param	"TMMFState aMode"
 *			Mode for which this object will be used.
 *
 */
inline void CMMFDevSoundSvrImp::InitializeL(MDevSoundObserver& aDevSoundObserver, TFourCC aDesiredFourCC, TMMFState aMode)
	{
	// to get HW Uid from the FourCC
	RImplInfoPtrArray plugInArray;
	TFourCC KPCM16FourCC(' ','P','1','6');
	_LIT(KNullString, "");

	TUid hwDevicePluginInterface = {KMmfUidBtPluginInterfaceHwDevice};
	TUid implUid = {0};  

	CleanupResetAndDestroyPushL( plugInArray );
	// Get the implementation UID based on the FourCC and mode.
	if (aMode == EMMFStatePlaying)
		{//destination four CC is pcm16
		iDevSoundUtil->SeekUsingFourCCL(hwDevicePluginInterface, plugInArray, aDesiredFourCC, KPCM16FourCC, KNullString);
		}
	else if (aMode == EMMFStateRecording)
		{//source fourCC is pcm16
		iDevSoundUtil->SeekUsingFourCCL(hwDevicePluginInterface, plugInArray, KPCM16FourCC, aDesiredFourCC, KNullString);
		}
	else User::Leave(KErrNotSupported);//invalid aMode cant set 4CC for tone

	if(plugInArray.Count() == 0)
		{ // couldn't find Decoder only implementation, try to get Decoder/Encoder
		iDevSoundUtil->SeekUsingFourCCL(hwDevicePluginInterface, plugInArray, aDesiredFourCC, aDesiredFourCC, KNullString);
		if(plugInArray.Count() == 0)
			User::Leave(KErrNotSupported);
		}
	implUid = plugInArray[0]->ImplementationUid(); // Just pick the first in the list

	// If we made it here, there we have found implementation UID
	InitializeL(aDevSoundObserver, implUid, aMode);
	CleanupStack::PopAndDestroy() ;  //pluginArray
	}

/*
 *
 *	Returns the supported Audio settings.
 *  
 *	@return	"TMMFCapabilities"
 *			Device settings.
 *
 */
inline TMMFCapabilities CMMFDevSoundSvrImp::Capabilities()
	{
	if ((iAudioPolicyPrioritySettings.iPref & EA2DPBluetoothHeadset) && (iPlayCustomInterface))
		{
		//then we need to get the caps from the HwDevice
		//actually we should get the Caps from the HwDevice in any case
		//but am being cautious so as not to cause test regressions
		TTaskConfig hwDeviceCaps = iPlayCustomInterface->Caps();
		iDeviceCapabilities.iRate = hwDeviceCaps.iRate; //the two structures use the same enums so this is ok
		if (hwDeviceCaps.iStereoMode & ETaskMono)
			{
			iDeviceCapabilities.iChannels = EMMFMono;
			}
		if (hwDeviceCaps.iStereoMode & ETaskInterleaved)
			{
			iDeviceCapabilities.iChannels |= EMMFStereo;
			}
		}
	return iDeviceCapabilities;
	}

/*
 *
 *	Returns the current audio settings.
 *  
 *	@return	"TMMFCapabilities"
 *			Device settings.
 *
 */
inline TMMFCapabilities CMMFDevSoundSvrImp::Config() const
	{
	return iDeviceConfig;
	}

/*
 *
 *	Returns an integer representing the maximum volume.
 *
 *	This is the maximum value which can be passed to CMMFDevSoundProxy::SetVolume.
 *  
 *	@return	"TInt"
 *			The maximum volume. This value is platform dependent but is always
 *			greater than or equal to one.
 *
 */
inline TInt CMMFDevSoundSvrImp::MaxVolume()
	{
	return iPlayFormatsSupported().iMaxVolume;
	}

/*
 *
 *	Returns an integer representing the current volume.
 * 
 *	@return	"TInt"
 *			The current volume level.
 *
 */
inline TInt CMMFDevSoundSvrImp::Volume()
	{
	return iVolume;
	}

/*
 *
 *	Returns an integer representing the maximum gain.
 *
 *	This is the maximum value which can be passed to CMMFDevSoundProxy::SetGain.
 * 
 *	@return	"TInt"
 *			The maximum gain. This value is platform dependent but is always
 *			greater than or equal to one.
 *
 */
inline TInt CMMFDevSoundSvrImp::MaxGain()
	{
	return iRecordFormatsSupported().iMaxVolume;//uses iMaxVolume for iMaxGain
	}

/*
 *
 *	Returns an integer representing the current gain.
 *
 *	@return	"TInt"
 *			The current gain level.
 *
 */
inline TInt CMMFDevSoundSvrImp::Gain()
	{
	return iGain;
	}

/*
 *
 *	Returns the speaker balance set for playing.
 *
 *	Leaves on failure.
 *
 *	@param	"TInt& aLeftPrecentage"
 *			On return contains the left speaker volume percentage.
 *
 *	@param	"TInt& aRightPercentage"
 *			On return contains the right speaker volume percentage.
 *
 */
inline void CMMFDevSoundSvrImp::GetPlayBalanceL(TInt& aLeftPercentage, TInt& aRightPercentage)
	{
	aLeftPercentage = iLeftPlayBalance;
	aRightPercentage = iRightPlayBalance;
	}

/*
 *
 *	Returns the microphone gain balance set for recording.
 *
 *	Leaves on failure.
 *
 *	@param	"TInt& aLeftPercentage"
 *			On return contains the left microphone gain percentage.
 *
 *	@param	"TInt& aRightPercentage"
 *			On return contains the right microphone gain percentage.
 *
 */
inline void CMMFDevSoundSvrImp::GetRecordBalanceL(TInt& aLeftPercentage, TInt& aRightPercentage)
	{
	aLeftPercentage = iLeftRecordBalance;
	aRightPercentage = iRightRecordBalance;
	}

/*
 *
 *	Contine the process of recording. Once the buffer is filled with recorded
 *	data, the Observer gets reference to buffer along with callback
 *	BufferToBeEmptied(). After processing the buffer (copying over to a
 *	different buffer or writing to file) the client should call this
 *	method to continue recording process.
 *
 */
inline void CMMFDevSoundSvrImp::RecordData(const RMmfIpcMessage& aMessage)
	{
	ASSERT(iDevSoundObserver);

	// Checkes if the client has a UserEnvironment capability
	if (!aMessage.HasCapability(ECapabilityUserEnvironment))
		{
		iDevSoundObserver->RecordError(KErrPermissionDenied);
		return;
		}
		
	if(iCMMFHwDevice)
		{
		if(iMode== EMMFStateRecording)
			{
			iHwDeviceBuffer->Data().SetLength(iHwDeviceBuffer->RequestSize());
			iCMMFHwDevice->ThisHwBufferEmptied(*iHwDeviceBuffer);
			}
		}
	}

/*
 *
 *	Defines the number of times the audio is to be repeated during the tone
 *	playback operation.
 *
 *	A period of silence can follow each playing of tone. The tone playing can
 *	be repeated indefinitely.
 *
 *	@param	"TInt aRepeatCount"
 *			The number of times the tone, together with the trailing silence,
 *			is to be repeated. If this is set to KMdaRepeatForever, then the
 *			tone, together with the trailing silence, is repeated indefinitely
 *			or until Stop() is called. If this is set to zero, then the tone is
 *			not repeated.
 *
 *			Supported only during tone playing.
 *
 */
inline void CMMFDevSoundSvrImp::SetToneRepeats(TInt aRepeatCount,
				const TTimeIntervalMicroSeconds& aRepeatTrailingSilence)
	{
	iRepeatCount = aRepeatCount;
	iRepeatTrailingSilence = aRepeatTrailingSilence;
	}

/*
 *
 *	Defines the priority settings that should be used for this instance.
 *
 *	@param	"const TMMFPrioritySettings& aPrioritySettings"
 *			An class type representing the client's priority, priority 
 *			preference and state.
 *
 */
inline void CMMFDevSoundSvrImp::SetPrioritySettings(const TMMFPrioritySettings& aPrioritySettings)
	{
	iAudioPolicyPrioritySettings.iPref = aPrioritySettings.iPref;
	iAudioPolicyPrioritySettings.iPriority = aPrioritySettings.iPriority;
	}

/*
 *
 *	Initializes and starts conversion process. Once the process is initiated,
 *	observer's call back method BufferToBeFilled() is called with reference to
 *	the buffer into which source format data is to be read.
 *
 *	The maximum size of data (in bytes) that can be converted is specified in
 *	CMMFBuffer::RequestSize(). Any data that is read into buffer beyond this
 *	size will be ignored.
 *
 *	Leaves on failure.
 *  @prototype
 */
inline void CMMFDevSoundSvrImp::ConvertInitL()
	{
	User::Leave(KErrNotSupported);
	}

/*
 *
 *	Converts the data in the buffer from source format to destination format.
 *	After the data is converted to destination format, a reference to the buffer
 *	containing data in destination format is passed in the observer call back
 *	method BufferToBeEmptied().
 *
 *	The amount of data contained in buffer is specified in
 *	CMMFBuffer::RequestSize().
 *  @prototype
 */
inline void CMMFDevSoundSvrImp::ConvertData()
	{
	// No implementation
	}

// No custom interfaces are supported so return NULL.
inline TAny* CMMFDevSoundSvrImp::CustomInterface(TUid /*aInterfaceId*/)
	{
	return NULL;
	}

/*
 *
 *	Returns the number of available pre-defined tone sequences.
 *
 *	This is the number of fixed sequence supported by DevSound by default.
 *
 *	@return	"TInt"
 *			The fixed sequence count. This value is implementation dependent
 *			but is always greater than or equal to zero.
 *
 */
inline TInt CMMFDevSoundSvrImp::FixedSequenceCount()
	{
	return iFixedSequences->Count();
	}

/*
 *
 *	Returns the name assigned to a specific pre-defined tone sequence.
 *
 *	This is the number of fixed sequence supported by DevSound by default.
 *
 *	The function raises a panic if sequence number specified invalid.
 *
 *	@return	"TDesC&"
 *			A reference to a Descriptor containing the fixed sequence
 *			name indexed by aSequenceNumber.
 *
 *	@param	"TInt aSequenceNumber"
 *			The index identifying the specific pre-defined tone sequence. Index
 *			values are relative to zero.
 *			This can be any value from zero to the value returned by a call to
 *			CMdaAudioPlayerUtility::FixedSequenceCount() - 1.
 *			The function raises a panic if sequence number is not within this
 *			range.
 *
 */
inline const TDesC& CMMFDevSoundSvrImp::FixedSequenceName(TInt aSequenceNumber)
	{
	ASSERT((aSequenceNumber >= 0)&&(aSequenceNumber < iFixedSequences->Count()));
	return iDevSoundUtil->FixedSequenceName(aSequenceNumber);
	}

/*
 *
 *	Sets Id for this instance of DevSound
 *
 *	@param	"TInt aDevSoundId"
 *			Integer value assigned by Audio Policy Server
 *
 */
inline void CMMFDevSoundSvrImp::SetDevSoundId(TInt aDevSoundId)
	{
	iDevSoundInfo.iDevSoundId = aDevSoundId;
	}

/*
 *
 *	Returns information about this DevSound instance.
 *
 *	This method is used by Audio Policy Server to make audio policy decisions.
 * 
 *	@return	"TMMFDevSoundinfo"
 *			A reference to TMMFDevSoundinfo object holding the current settings
 *			of this DevSound instance.
 *
 */
inline TMMFDevSoundInfo CMMFDevSoundSvrImp::DevSoundInfo()
	{
 	return iDevSoundInfo;
	}


/*
 *	Updates the total bytes played.
 *
 */
inline void CMMFDevSoundSvrImp::UpdateBytesPlayed()
	{
	if (iPlayCustomInterface)
		iPlayedBytesCount = iPlayCustomInterface->BytesPlayed();
	}