1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

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

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #include <ecom/implementationproxy.h>

    17 #include <mmf/server/mmfdatabuffer.h>

    18 #include "audiodevice.hrh"

    19 #include "audiodevice.h"

    20 #include <e32debug.h>

    21 #include <mdf/mdfpuconfig.h>

    22 #include <mda/common/audio.h>

    23 

    24 // we need 16k to hold a pcm packet

    25 const TInt KBufferSize = 16384;

    26 

    27 const TInt KDefaultSampleRate = 8000;

    28 const TInt KDefaultNumberChannels = 1;

    29 _LIT(KAudioDevicePanic, "CAudioDevice Panic");

    30 

    31 enum TAudioDevicePanics

    32 	{

    33 	EObserverNotSet, 

    34 	EInvalidUsage

    35 	};

    36 	

    37 const TInt KInputPortIndex = 0;

    38 const TInt KOutputPortIndex = 1;

    39 	

    40 // ------------------------------------------------------------------------------------------	

    41 // CAudioDevice::CInput port class implementation

    42 

    43 	

    44 CAudioDevice::CInputPort::CInputPort(CAudioDevice& aParent) 

    45 	: CActive(EPriorityNormal),

    46 	  iParent(aParent),

    47 	  iSampleRate(KDefaultSampleRate),

    48 	  iChannels(KDefaultNumberChannels),

    49 	  iBufferSize(KBufferSize)

    50 	{

    51 	}

    52 		

    53 CAudioDevice::CInputPort::~CInputPort()

    54 	{

    55 	Cancel();

    56 	iBuffers.Close();

    57 	}

    58 

    59 CAudioDevice::CInputPort* CAudioDevice::CInputPort::NewL(CAudioDevice& aParent)

    60 	{

    61 	CInputPort* self = new (ELeave) CInputPort(aParent);

    62 	CleanupStack::PushL(self);

    63 	self->ConstructL();

    64 	CleanupStack::Pop(self);

    65 	return self;

    66 	}

    67 

    68 void CAudioDevice::CInputPort::ConstructL()

    69 	{

    70 	CActiveScheduler::Add(this);	

    71 	}

    72 

    73 TInt CAudioDevice::CInputPort::MipConfigure(const TPuConfig& aConfig)

    74 	{

    75 	if (aConfig.Uid() == TUid::Uid(KUidTTaskConfig))

    76 		{

    77 		const TTaskConfig* config = TPuTaskConfig::GetStructure(aConfig);	

    78 	

    79 		iSampleRate = config->iRate;

    80 		iChannels = (config->iStereoMode & ETaskMono)? 1 : 2;

    81 		iInterleaved = (config->iStereoMode & ETaskInterleaved)?ETrue : EFalse;

    82 		return KErrNone;

    83 		}

    84 	

    85 	if (aConfig.Uid() == TUid::Uid(KUidTTaskConfig2))

    86 		{

    87 		const TTaskConfig2* config = TPuTaskConfig2::GetStructure(aConfig);	

    88 	

    89 		iSampleRate = config->iRate;

    90 		iChannels = config->iNumberOfChannels;

    91 		iInterleaved = (config->iStereoMode & ETaskInterleaved)?ETrue : EFalse;

    92 		return KErrNone;

    93 		}	

    94 		

    95 	return KErrNotSupported;

    96 	}

    97 

    98 TInt CAudioDevice::CInputPort::MipGetConfig(TPuConfig& /*aConfig*/)

    99 	{

   100 	return KErrNotSupported;

   101 	}

   102 

   103 TInt CAudioDevice::CInputPort::MipTunnelRequest(const MMdfOutputPort& aOutputPortToBeConnectedTo,

   104 			TTunnelFlags& /*aTunnelFlags*/, TSupplierType& /*aSupplierType*/)

   105 	{

   106 	if ((iParent.State()!=EProcessingUnitLoaded) && (!iStopped))

   107 		{

   108 		// invalid state

   109 		return EInvalidState;

   110 		}

   111 	

   112 	if (iPortConnectedTo)

   113 		{

   114 		// the port is already connected, return an error

   115 		return EPortAlreadyTunnelled;

   116 		}

   117 	iPortConnectedTo = const_cast<MMdfOutputPort*>(&aOutputPortToBeConnectedTo);

   118 	return KErrNone;

   119 	}

   120 

   121 void CAudioDevice::CInputPort::MipWriteData(CMMFBuffer& aInputBuffer)

   122 	{

   123 	TInt err = iBuffers.Append(&aInputBuffer);

   124 	if (err == KErrNone)

   125 		{

   126 		if (iParent.State() == EProcessingUnitExecuting && !IsActive())

   127 			{

   128 			SetActive();

   129 			TRequestStatus* status = &iStatus;

   130 			User::RequestComplete(status, KErrNone);

   131 			}

   132 		}

   133 	else

   134 		{

   135 		if (iObserver)

   136 			{

   137 			iObserver->MipoWriteDataComplete(this, &aInputBuffer, err);

   138 			}

   139 		}

   140 	}

   141 

   142 void CAudioDevice::CInputPort::Execute()

   143 	{

   144 	if (!IsActive() && iBuffers.Count()>0)

   145 		{

   146 		SetActive();

   147 		TRequestStatus* status = &iStatus;

   148 		User::RequestComplete(status, KErrNone);

   149 		}

   150 	}

   151 

   152 TBool CAudioDevice::CInputPort::MipIsTunnelled() const

   153 	{

   154 	if (iPortConnectedTo)

   155 		{

   156 		return ETrue;

   157 		}

   158 	else

   159 		{

   160 		return EFalse;			

   161 		}

   162 	}

   163 

   164 TInt CAudioDevice::CInputPort::MipIndex() const

   165 	{

   166 	return KInputPortIndex;

   167 	}

   168 	

   169 CMMFBuffer* CAudioDevice::CInputPort::MipCreateBuffer(TInt /*aBufferSize*/)

   170 	{

   171 	__ASSERT_ALWAYS(EFalse, User::Panic(KAudioDevicePanic, EInvalidUsage));

   172 	return NULL;

   173 	}

   174 

   175 TInt CAudioDevice::CInputPort::MipUseBuffer(CMMFBuffer& /*aBuffer*/)

   176 	{

   177 	return KErrNone;

   178 	}

   179 

   180 TInt CAudioDevice::CInputPort::MipFreeBuffer(CMMFBuffer* /*aBuffer*/)

   181 	{

   182 	return KErrNone;

   183 	}

   184 	

   185 void CAudioDevice::CInputPort::MipDisconnectTunnel()

   186 	{

   187 	}

   188 

   189 void CAudioDevice::CInputPort::MipRestartTunnel()

   190 	{

   191 	}

   192 

   193 TUint32 CAudioDevice::CInputPort::MipBufferSize() const

   194 	{

   195 	return iBufferSize;

   196 	}

   197 

   198 void CAudioDevice::CInputPort::Pause()

   199 	{

   200 	if (iParent.SoundDevice().Handle())

   201 		{

   202 		iParent.SoundDevice().PausePlayBuffer();

   203 		}

   204 	}

   205 	

   206 void CAudioDevice::CInputPort::Stop()

   207 	{

   208 	Cancel();	

   209 	}

   210 	

   211 TInt CAudioDevice::CInputPort::MipCreateCustomInterface(TUid aUid)

   212 	{

   213 	if (aUid.iUid == KMmfPlaySettingsCustomInterface)

   214 		{

   215 		return KErrNone;

   216 		}

   217 	return KErrNotSupported;	

   218 	}

   219 

   220 TAny* CAudioDevice::CInputPort::MipCustomInterface(TUid aUid)

   221 	{

   222 	if (aUid.iUid == KMmfPlaySettingsCustomInterface)

   223 		{

   224 		return static_cast<MPlayCustomInterface*>(this);

   225 		}

   226 	return NULL;

   227 	}

   228 	

   229 void CAudioDevice::CInputPort::SetVolume(TUint aVolume)

   230 	{

   231 	iVolume = aVolume;

   232 	}

   233 

   234 TUint CAudioDevice::CInputPort::Volume()

   235 	{

   236 	return iVolume;

   237 	}

   238 

   239 TUint CAudioDevice::CInputPort::BytesPlayed()

   240 	{

   241 	return iBytesPlayed;

   242 	}

   243 

   244 void CAudioDevice::CInputPort::SetVolumeRamp(const TTimeIntervalMicroSeconds& aRampDuration)

   245 	{

   246 	iRampDuration = aRampDuration;

   247 	}

   248 

   249 TTimeIntervalMicroSeconds& CAudioDevice::CInputPort::VolumeRamp()

   250 	{

   251 	return iRampDuration;

   252 	}

   253 

   254 void CAudioDevice::CInputPort::RunL()

   255 	{

   256 	if (iCurrentBuffer != NULL)

   257 		{

   258 		// If we've been signalled with a buffer, callback that we've completed the writing of the

   259 		// buffer

   260 		if (iObserver)

   261 			{		

   262 			iObserver->MipoWriteDataComplete(this, iCurrentBuffer, iStatus.Int());

   263 			if (iCurrentBuffer->LastBuffer())

   264 				{

   265 				iParent.Observer()->ExecuteComplete(&iParent, KErrUnderflow);

   266 				iParent.SoundDevice().Close();

   267 				}

   268 			}

   269 		iCurrentBuffer = NULL;

   270 		}

   271 	// only process the next buffer if there is no error

   272 	// error callbacks were handled in the previous block

   273 	if (iStatus == KErrNone)

   274 		{

   275 		if (iBuffers.Count()>0)

   276 			{

   277 			iCurrentBuffer = iBuffers[0];

   278 			iBuffers.Remove(0);

   279 			

   280 			if (CMMFBuffer::IsSupportedDataBuffer(iCurrentBuffer->Type()))

   281 				{

   282  				TDes8& aBufferDes = (static_cast<CMMFDataBuffer*>(iCurrentBuffer))->Data();

   283  				iStatus = KRequestPending;

   284 				iParent.SoundDevice().PlayData(iStatus, aBufferDes);

   285 				SetActive();

   286 				}

   287 			}

   288 		}

   289 	}

   290 

   291 void CAudioDevice::CInputPort::DoCancel()

   292 	{

   293 	if (iParent.SoundDevice().Handle())

   294 		{

   295 		iParent.SoundDevice().CancelPlayData();

   296 		iParent.SoundDevice().FlushPlayBuffer();

   297 		}

   298 	}

   299 	

   300 // CAudioDevice::CInput port class implementation

   301 CAudioDevice::COutputPort::COutputPort(CAudioDevice& aParent) 

   302 	: CActive(EPriorityNormal),

   303 	iParent(aParent),

   304 	iSampleRate(KDefaultSampleRate),

   305 	iChannels(KDefaultNumberChannels),

   306 	iBufferSize(KBufferSize)

   307 	{	

   308 	}

   309 

   310 TInt CAudioDevice::CInputPort::SampleRate()

   311 	{

   312 	return iSampleRate;

   313 	}

   314 	

   315 TInt CAudioDevice::CInputPort::Channels()

   316 	{

   317 	return iChannels;

   318 	}

   319 

   320 void CAudioDevice::CInputPort::MipInitialize()

   321 	{

   322 	// Nothing to do

   323 	}

   324 	

   325 CAudioDevice::COutputPort* CAudioDevice::COutputPort::NewL(CAudioDevice& aParent)

   326 	{

   327 	COutputPort* self = new (ELeave) COutputPort(aParent);

   328 	CleanupStack::PushL(self);

   329 	self->ConstructL();

   330 	CleanupStack::Pop(self);

   331 	return self;

   332 	}

   333 

   334 void CAudioDevice::COutputPort::ConstructL()

   335 	{

   336 	CActiveScheduler::Add(this);	

   337 	}

   338 

   339 TInt CAudioDevice::COutputPort::MopConfigure(const TPuConfig& aConfig)

   340 	{

   341 	if (aConfig.Uid() == TUid::Uid(KUidTTaskConfig))

   342 		{

   343 		const TTaskConfig* config = TPuTaskConfig::GetStructure(aConfig);	

   344 	

   345 		iSampleRate = config->iRate;

   346 		iChannels = (config->iStereoMode & ETaskMono)? 1 : 2;

   347 		iInterleaved = (config->iStereoMode & ETaskInterleaved)?ETrue : EFalse;

   348 		return KErrNone;

   349 		}

   350 		

   351 	if (aConfig.Uid() == TUid::Uid(KUidTTaskConfig2))

   352 		{

   353 		const TTaskConfig2* config = TPuTaskConfig2::GetStructure(aConfig);	

   354 	

   355 		iSampleRate = config->iRate;

   356 		iChannels = config->iNumberOfChannels;

   357 		iInterleaved = (config->iStereoMode & ETaskInterleaved)?ETrue : EFalse;

   358 		return KErrNone;

   359 		}	

   360 	return KErrNotSupported;

   361 	}

   362 	

   363 TInt CAudioDevice::COutputPort::MopGetConfig(TPuConfig& /*aConfig*/)

   364 	{

   365 	return KErrNotSupported;

   366 	}

   367 

   368 void CAudioDevice::COutputPort::MopInitialize()

   369 	{

   370 	// Nothing to do

   371 	}

   372 

   373 TInt CAudioDevice::COutputPort::MopTunnelRequest(const MMdfInputPort& /*aInputPortToBeConnectedTo*/,

   374 	TTunnelFlags& /*aTunnelFlags*/, TSupplierType& /*aSupplierType*/)

   375 	{

   376 	return KErrNone;

   377 	}

   378 

   379 void CAudioDevice::COutputPort::MopReadData(CMMFBuffer& aOutputBuffer)

   380 	{

   381 	TInt err = iBuffers.Append(&aOutputBuffer);

   382 	if (err == KErrNone)

   383 		{

   384 		if ((iParent.State() == EProcessingUnitExecuting || iParent.State() == EProcessingUnitPaused) && !IsActive())

   385 			{

   386 			SetActive();

   387 			TRequestStatus* status = &iStatus;

   388 			User::RequestComplete(status, KErrNone);	

   389 			}		

   390 		}

   391 	else

   392 		{

   393 		if (iObserver)

   394 			{

   395 			iObserver->MopoReadDataComplete(this, &aOutputBuffer, err);

   396 			}

   397 		}

   398 	}

   399 

   400 TBool CAudioDevice::COutputPort::MopIsTunnelled() const

   401 	{

   402 	return EFalse;	

   403 	}

   404 

   405 TInt CAudioDevice::COutputPort::MopIndex() const

   406 	{

   407 	return KOutputPortIndex;

   408 	}

   409 	

   410 CMMFBuffer* CAudioDevice::COutputPort::MopCreateBuffer(TInt /*aBufferSize*/)

   411 	{

   412 	return NULL;

   413 	}

   414 	

   415 TInt CAudioDevice::COutputPort::MopUseBuffer(CMMFBuffer& /*aBuffer*/) 

   416 	{

   417 	return KErrNone;

   418 	}

   419 

   420 TInt CAudioDevice::COutputPort::MopFreeBuffer(CMMFBuffer* /*aBuffer*/) 

   421 	{

   422 	return KErrNone;

   423 	}

   424 

   425 void CAudioDevice::COutputPort::Execute()

   426 	{

   427 	if (!IsActive() && iBuffers.Count()>0)

   428 		{

   429 		SetActive();

   430 		TRequestStatus* status = &iStatus;

   431 		User::RequestComplete(status, KErrNone);

   432 		}

   433 	}

   434 	

   435 void CAudioDevice::COutputPort::Pause()

   436 	{

   437 	if(iParent.SoundDevice().Handle())

   438 		{

   439 		iParent.SoundDevice().FlushRecordBuffer();

   440 		}	

   441 	}

   442 	

   443 void CAudioDevice::COutputPort::Stop()

   444 	{

   445 	Cancel();

   446 	}

   447 

   448 void CAudioDevice::COutputPort::MopDisconnectTunnel()

   449 	{

   450 	// Find the last buffer in the array and set it as the 'LastBuffer'

   451 	if(iBuffers.Count() > 0)

   452 		{

   453 		(iBuffers[iBuffers.Count() - 1])->SetLastBuffer(ETrue);		

   454 		}

   455 	// Still have to send callback and cancel driver

   456 	iObserver->MopoDisconnectTunnelComplete(this, KErrNone);

   457 	iParent.SoundDevice().CancelRecordData();

   458 	}

   459 	

   460 void CAudioDevice::COutputPort::MopRestartTunnel()

   461 	{

   462 	}

   463 	

   464 TUint32 CAudioDevice::COutputPort::MopBufferSize() const

   465 	{

   466 	return iBufferSize;

   467 	}

   468 	

   469 void CAudioDevice::CInputPort::MipSetObserver(const MMdfInputPortObserver& aObserver)

   470 	{

   471 	iObserver = const_cast<MMdfInputPortObserver*>(&aObserver);

   472 	}

   473 

   474 void CAudioDevice::COutputPort::MopSetObserver(const MMdfOutputPortObserver& aObserver)

   475 	{

   476 	iObserver = const_cast<MMdfOutputPortObserver*>(&aObserver);

   477 	}

   478 

   479 TInt CAudioDevice::COutputPort::MopCreateCustomInterface(TUid aUid)

   480 	{

   481 	if (aUid.iUid == KMmfRecordSettingsCustomInterface)

   482 		{

   483 		return KErrNone;

   484 		}

   485 	return KErrNotSupported;	

   486 	}

   487 	

   488 TAny* CAudioDevice::COutputPort::MopCustomInterface(TUid aUid)

   489 	{

   490 	if (aUid.iUid == KMmfRecordSettingsCustomInterface)

   491 		{

   492 		return dynamic_cast<MRecordCustomInterface*>(this);

   493 		}

   494 

   495 	return NULL;

   496 	}

   497 	

   498 void CAudioDevice::COutputPort::RunL()

   499 	{

   500 	if (iCurrentBuffer != NULL)

   501 		{

   502 		// If we've been signalled with a buffer, callback that we've completed the writing of the

   503 		// buffer

   504 		if (iObserver)

   505 			{		

   506 			TInt length = iCurrentBuffer->BufferSize();

   507 			iBytesRecorded += length;

   508 			if (length<iBufferSize)

   509 				{

   510 				iCurrentBuffer->SetLastBuffer(ETrue);

   511 				iParent.SoundDevice().CancelRecordData(); // Required so that a resume of an encode functions correctly

   512 				}

   513 					

   514 			iObserver->MopoReadDataComplete(this, iCurrentBuffer, iStatus.Int());

   515 			

   516 			}

   517 			iCurrentBuffer = NULL;

   518 		}

   519 		

   520 	if (iStatus == KErrNone)

   521 		{

   522 		if (iBuffers.Count()>0)

   523 			{

   524 			iCurrentBuffer = iBuffers[0];

   525 			iBuffers.Remove(0);

   526 			

   527 			if (CMMFBuffer::IsSupportedDataBuffer(iCurrentBuffer->Type()))

   528 				{

   529 				TDes8& aBufferDes = (static_cast<CMMFDataBuffer*>(iCurrentBuffer))->Data();

   530 				iStatus = KRequestPending;

   531 				iParent.SoundDevice().RecordData(iStatus, aBufferDes);

   532 				SetActive();

   533 				}

   534 			}

   535 		}

   536 	}

   537 

   538 void CAudioDevice::COutputPort::DoCancel()

   539 	{

   540 	if (iParent.SoundDevice().Handle())

   541 		{

   542 		iParent.SoundDevice().CancelRecordData();

   543 		iParent.SoundDevice().FlushRecordBuffer();

   544 		}		

   545 	}

   546 	

   547 TInt CAudioDevice::COutputPort::SampleRate()

   548 	{

   549 	return iSampleRate;

   550 	}

   551 	

   552 TInt CAudioDevice::COutputPort::Channels()

   553 	{

   554 	return iChannels;

   555 	}

   556 

   557 CAudioDevice::COutputPort::~COutputPort()

   558 	{

   559 	Cancel();

   560 	iBuffers.Close();

   561 	}

   562 	

   563 // from MRecordCustomInterface

   564 void CAudioDevice::COutputPort::SetGain(TUint aGain)

   565 	{

   566 	iGain = aGain;

   567 	}

   568 TUint CAudioDevice::COutputPort::Gain()

   569 	{

   570 	return iGain;

   571 	}

   572 	

   573 TUint CAudioDevice::COutputPort::BytesRecorded()

   574 	{

   575 	return iBytesRecorded;

   576 	}

   577 

   578 // ------------------------------------------------------------------------------------------

   579 // CAudioDevice Implementation

   580 

   581 

   582 CAudioDevice::CAudioDevice()

   583 	{

   584 	}

   585 	

   586 CAudioDevice::~CAudioDevice()

   587 	{

   588 	delete iInputPort;

   589 	delete iOutputPort;

   590 	iSoundDevice.Close();

   591 	}

   592 

   593 void CAudioDevice::Execute()

   594 	{

   595 	__ASSERT_ALWAYS(iObserver, User::Panic(KAudioDevicePanic, EObserverNotSet));

   596 	TInt err = KErrNone;

   597 	if(!iSoundDevice.Handle())

   598 		{

   599 		err = iSoundDevice.Open();

   600 		}

   601 	

   602 	RMdaDevSound::TCurrentSoundFormatBuf buf;

   603 	if (err == KErrNone)

   604 		{

   605 		if(iState == EProcessingUnitPaused)

   606 			{

   607 			iSoundDevice.ResumePlaying();

   608 			}

   609 		else

   610 			{

   611 			// Set play format (for input port)

   612 			iSoundDevice.GetPlayFormat(buf);

   613 			buf().iRate = iInputPort->SampleRate();

   614 			buf().iChannels = iInputPort->Channels();

   615 			buf().iBufferSize = KBufferSize;

   616 			buf().iEncoding = RMdaDevSound::EMdaSoundEncoding16BitPCM;

   617 			err = iSoundDevice.SetPlayFormat(buf);

   618 			}

   619 		}

   620 	iState = EProcessingUnitExecuting;	

   621 	if (err == KErrNone)

   622 		{

   623 		// Set record format (for output format)

   624 		iSoundDevice.GetRecordFormat(buf);

   625 		buf().iRate = iOutputPort->SampleRate();

   626 		buf().iChannels = iOutputPort->Channels();

   627 		buf().iBufferSize = KBufferSize;

   628 		buf().iEncoding = RMdaDevSound::EMdaSoundEncoding16BitPCM;

   629 		iSoundDevice.SetRecordFormat(buf);

   630 		iInputPort->Execute();

   631 		iOutputPort->Execute();

   632 		}

   633 	else 

   634 		{

   635 		iObserver->ExecuteComplete(this, err);

   636 		}		

   637 	}

   638 

   639 TInt CAudioDevice::Pause()

   640 	{

   641 	iState = EProcessingUnitPaused;

   642 	iInputPort->Pause();

   643 	iOutputPort->Pause();

   644 	return KErrNone;

   645 	}

   646 

   647 void CAudioDevice::Stop()

   648 	{

   649 	if(iState == EProcessingUnitExecuting || iState == EProcessingUnitPaused)

   650 		{

   651 		// Cancel and flush the device driver		

   652 		iInputPort->Stop();

   653 		iOutputPort->Stop();

   654 		iState = EProcessingUnitIdle;

   655 		

   656 		// Close the sound device

   657 		iSoundDevice.Close();	

   658 		}		

   659 	}

   660 	

   661 CAudioDevice* CAudioDevice::NewL()

   662 	{

   663 	CAudioDevice* self = new (ELeave) CAudioDevice;

   664 	CleanupStack::PushL(self);

   665 	self->ConstructL();

   666 	CleanupStack::Pop(self);

   667 	return self;

   668 	}

   669 	

   670 TInt CAudioDevice::Create(const MMdfProcessingUnitObserver& aObserver)

   671 	{

   672 	iObserver = const_cast<MMdfProcessingUnitObserver*>(&aObserver);

   673 	return KErrNone;

   674 	}

   675 	

   676 TInt CAudioDevice::Configure(const TPuConfig& /*aConfigurationSetup*/)

   677 	{

   678 	return KErrNotSupported;

   679 	}

   680 	

   681 TInt CAudioDevice::GetConfig(TPuConfig& /*aConfigurationSetup*/)

   682 	{

   683 	return KErrNotSupported;

   684 	}

   685 

   686 TInt CAudioDevice::GetInputPorts(RPointerArray<MMdfInputPort>& aComponentInputPorts )

   687 	{

   688 	return aComponentInputPorts.Append(iInputPort);

   689 	}

   690 

   691 TInt CAudioDevice::GetOutputPorts(RPointerArray<MMdfOutputPort>& aComponentOutputPorts )

   692 	{

   693 	return aComponentOutputPorts.Append(iOutputPort);

   694 	}

   695 

   696 void CAudioDevice::ConstructL()

   697 	{

   698 	iInputPort = CInputPort::NewL(*this);

   699 	iOutputPort = COutputPort::NewL(*this);

   700 	iState = EProcessingUnitLoaded;

   701 	}

   702 

   703 void CAudioDevice::Initialize()

   704 	{

   705 	__ASSERT_ALWAYS(iObserver, User::Panic(KAudioDevicePanic, EObserverNotSet));

   706 	

   707 	iObserver->InitializeComplete(this, KErrNone);

   708 	iState = EProcessingUnitIdle;

   709 	}

   710 

   711 MMdfProcessingUnitObserver* CAudioDevice::Observer()

   712 	{

   713 	return iObserver;	

   714 	}

   715 		

   716 TProcessingUnitState CAudioDevice::State()

   717 	{

   718 	return iState;	

   719 	}

   720 		

   721 RMdaDevSound& CAudioDevice::SoundDevice()

   722 	{

   723 	return iSoundDevice;

   724 	}

   725 	

   726 TAny* CAudioDevice::CustomInterface(TUid /*aUid*/)

   727 	{

   728 	return NULL;

   729 	}

   730 		

   731 TInt CAudioDevice::CreateCustomInterface(TUid /*aUid*/)

   732 	{

   733 	return KErrNotSupported;

   734 	}

   735 

   736 // ------------------------------------------------------------------------------------------	

   737 // ECOM Implementation table entry	

   738 	

   739 const TImplementationProxy ImplementationTable[] = 

   740 	{

   741 	IMPLEMENTATION_PROXY_ENTRY(KUidPUAudioDevice,	CAudioDevice::NewL),

   742 	};

   743 

   744 EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)

   745 	{

   746 	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);

   747 	return ImplementationTable;

   748 	}

   749