--- a/bluetoothappprofiles/avrcp/statusconverter/remconavrcpstatusconverter.cpp	Wed Oct 13 13:15:31 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,551 +0,0 @@
-// 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:
-//
-
-/**
- @file
- @internalComponent
- @released
-*/
-
-#include <avcframe.h>
-#include <remconbeareravrcp.h>
-
-#include "remconstatusapi.h"
-#include "remconavrcpstatusconverter.h"
-
-/** Factory function.
-
-@return Ownership of a new CRemConAvrcpStatusConverter.
-*/
-CRemConAvrcpStatusConverter* CRemConAvrcpStatusConverter::NewL()
-	{
-	CRemConAvrcpStatusConverter* self = new(ELeave) CRemConAvrcpStatusConverter;
-	return self;
-	}
-
-/** Destructor.
-*/
-CRemConAvrcpStatusConverter::~CRemConAvrcpStatusConverter()
-	{
-	}
-
-/** Constructor.
-*/
-CRemConAvrcpStatusConverter::CRemConAvrcpStatusConverter()
-	{
-	}
-
-/** Called to get a converter interface.
-
-@param aUid The uid of the desired interface.
-@return An instance of the desired interface, NULL if
-		one could not be found.
-*/
-TAny* CRemConAvrcpStatusConverter::GetInterface(TUid aUid)
-	{
-	TAny* ret = NULL;
-	if ( aUid == TUid::Uid(KRemConConverterInterface1) )
-		{
-		ret = reinterpret_cast<TAny*>(
-			static_cast<MRemConConverterInterface*>(this)
-			);
-		}
-
-	return ret;
-	}
-
-/** Decides whether this converter supports this interface.
-
-This converter supports only the AVRCP bearer and Status API.
-This function checks whether the Uids provided match AVRCP and
-Status.
-
-@param aInterfaceData The Uid of the originating RemCon interface.
-@param aBearerUid The Uid of the bearer this data is destined for.
-@return Whether this data can be converted.	
-*/
-TBool CRemConAvrcpStatusConverter::SupportedUids(const TUid& aInterfaceUid, const TUid& aBearerUid) const
-	{
-	return (aInterfaceUid == TUid::Uid(KRemConStatusApiUid) &&
-	   aBearerUid == TUid::Uid(KRemConBearerAvrcpImplementationUid));
-	}
-
-/** Decides whether this converter supports this interface.
-
-This converter supports only the AVRCP bearer.  That bearer publishes
-interface data in the format of an AV/C frame.  This function 
-checks that aBearerUid is that of AVRCP, and if so examines the AV/C
-frame in aInterfaceData to see if it is a supported command.
-
-@param aInterfaceData Data in the format of the bearer identified by
-					  aBearerUid.  
-@param aBearerUid The Uid of the bearer this data originates from.
-@return Whether this data can be converted.
-*/	
-TBool CRemConAvrcpStatusConverter::SupportedInterface(const TDesC8& aInterfaceData, const TUid& aBearerUid) const
-	{
-	TInt supported = EFalse;
-	if(aBearerUid == TUid::Uid(KRemConBearerAvrcpImplementationUid))
-		{
-		AVC::TOpcode opcode = AVC::EPower; // arbitrary initialisation to avoid compiler warning
-		TRAPD(err, opcode = CAVCFrame::OpcodeL(aInterfaceData));
-		
-		if (		err == KErrNone
-			&&		( opcode == AVC::EUnitInfo || opcode == AVC::ESubunitInfo )
-			)
-			{
-			supported = ETrue;
-			}
-		}
-		
-	return supported;
-	}
-
-/** Convert data from the API's form (as we're given it by RemCon) to 
-bearer-specific form.
-
-We only deal with the AVRCP bearer.  This requires us to produce a
-CAVCFrame.
-
-The supported commands are Unit Info and Subunit Info.
-
-@param aInterfaceUid The Uid of the originating RemCon interface.
-@param aOperationId The id of the operation within the interface.
-@param aData Data in the format defined by the RemCon interface.
-@param aMsgType Whether this is a command or response.
-@param aBearerData On return, an AV/C frame representing the operation.
-*/
-TInt CRemConAvrcpStatusConverter::InterfaceToBearer(TUid aInterfaceUid, 
-		TUint aOperationId,
-		const TDesC8& /*aData*/,
-		TRemConMessageType aMsgType, 
-		TDes8& aBearerData) const
-	{
-	__ASSERT_ALWAYS(aInterfaceUid.iUid == KRemConStatusApiUid, CRemConAvrcpStatusConverter::Panic(EStatusConverterWrongInterface));
-	TInt err = KErrCorrupt;
-	
-	switch(aOperationId)
-		{
-		case ERemConStatusApiUnitInfo:
-			{
-			if(aMsgType == ERemConCommand)
-				{
-				CAVCFrame* frame = NULL;
-				TRAP(err, frame = UnitInfoL());
-				if(!err)
-					{
-					aBearerData = frame->Data();
-					err = KErrNone;
-					delete frame;
-					}
-				}
-			else if(aMsgType == ERemConResponse)
-				{
-				// These should be generated within the bearer
-				// as it knows the manufacturer id
-				err = KErrNotSupported;
-				}
-			break;
-			}
-		case ERemConStatusApiSubunitInfo:
-			{
-			if(aMsgType == ERemConCommand)
-				{
-				CAVCFrame* frame = NULL;
-				TRAP(err, frame = SubunitInfoL());
-				if(!err)
-					{
-					aBearerData = frame->Data();
-					err = KErrNone;
-					delete frame;
-					}
-				}
-			else if(aMsgType == ERemConResponse)
-				{
-				// These should be generated within the bearer
-				// as it knows the manufacturer id
-				err = KErrNotSupported;
-				}
-			break;
-			}
-		default:
-			{
-			err = KErrNotSupported;
-			break;
-			}
-		}
-
-	return err;
-	}
-
-/** Produce a Unit Info AV/C frame.
-
-@return A new AV/C frame representing unit info.
-@leave System wide error.
-*/
-CAVCFrame* CRemConAvrcpStatusConverter::UnitInfoL()
-	{
-	CAVCFrame* frame = CAVCFrame::NewL(AVC::ECommand, AVC::EStatus, AVC::EUnit, AVC::EIgnore);
-	frame->Append(TChar(AVC::EUnitInfo));
-	frame->Append(TChar(0xff));
-	frame->Append(TChar(0xff));
-	frame->Append(TChar(0xff));
-	frame->Append(TChar(0xff));
-	frame->Append(TChar(0xff));
-	return frame;
-	}
-
-/** Produce a Subunit Info AV/C frame.
-
-@return A new AV/C frame representing subunit info.
-@leave System wide error.
-*/	
-CAVCFrame* CRemConAvrcpStatusConverter::SubunitInfoL()
-	{
-	CAVCFrame* frame = CAVCFrame::NewL(AVC::ECommand, AVC::EStatus, AVC::EUnit, AVC::EIgnore);
-	frame->Append(TChar(AVC::ESubunitInfo));
-	frame->Append(TChar(0x7));
-	frame->Append(TChar(0xff));
-	frame->Append(TChar(0xff));
-	frame->Append(TChar(0xff));
-	frame->Append(TChar(0xff));
-	return frame;
-	}
-
-/** Convert data from the bearer format to RemCon interface format.
-
-We only deal with the Status Api. The supported commands are Unit 
-Info response and Subunit Info response.
-
-Support of these commands is mandatory in the targets.  In the case
-where a remote sends us something rubbish, we'll just provide our
-client with the default info.
-
-@param aBearerData An AV/C frame to convert.
-@param aInterfaceUid On return, the Uid of the RemCon interface.
-@param aOperationId On return, the id of the operation within the 
-					interface.
-@param aMsgType Whether this is a command or response.
-@param aData On return, Data in the format defined by the RemCon interface.
-@return Whether the command was successfully converted.
-*/
-TInt CRemConAvrcpStatusConverter::BearerToInterface(const TDesC8& aBearerData,
-		TUid& aInterfaceUid, 
-		TUint& aOperationId,
-		TRemConMessageType& aMsgType, 
-		TDes8& aData) const
-	{
-	TInt err = KErrCorrupt;
-	
-	switch(aOperationId)
-		{
-		case ERemConStatusApiUnitInfo:
-			{
-			if(aMsgType == ERemConCommand)
-				{
-				// These should be generated within the bearer
-				// as it knows the manufacturer id
-				err = KErrNotSupported;
-				}
-			else if(aMsgType == ERemConResponse)
-				{
-				// We try to parse the data, but if what the remote's sent
-				// us is invalid we'll fill in sensible values later
-				TRAP(err, SetUnitInfoResponseDataL(aBearerData, aData));
-				aInterfaceUid = TUid::Uid(KRemConStatusApiUid);
-				aOperationId = ERemConStatusApiUnitInfo;
-
-				if(err == KErrCorrupt)
-					{
-					// The data is set to the correct length in SetUnitInfoResponseDataL
-					// Stick some default data in there 
-					SetCommandDataFromInt(aData, KRemConStatusApiUnitOffset, 
-						KRemConStatusApiUnitLength, AVC::EID0);
-
-					SetCommandDataFromInt(aData, KRemConStatusApiUnitTypeOffset, 
-						KRemConStatusApiUnitTypeLength, AVC::EPanel);
-				
-					SetCommandDataFromInt(aData, KRemConStatusApiExtendedUnitTypeOffset, 
-						KRemConStatusApiExtendedUnitTypeLength, 0);		
-							
-					SetCommandDataFromInt(aData, KRemConStatusApiVendorIdOffset, 
-						KRemConStatusApiVendorIdLength, KRemConStatusApiDefaultVendorId);
-
-					err = KErrNone;
-					}
-				}
-			break;
-			}
-		case ERemConStatusApiSubunitInfo:
-			{
-			if(aMsgType == ERemConCommand)
-				{
-				// These should be generated within the bearer
-				// as it knows the manufacturer id
-				err = KErrNotSupported;
-				}
-			else if(aMsgType == ERemConResponse)
-				{
-				// We try to parse the data, but if what the remote's sent
-				// us is invalid we'll fill in sensible values later
-				TRAP(err, SetSubunitInfoResponseDataL(aBearerData, aData));
-				aInterfaceUid = TUid::Uid(KRemConStatusApiUid);
-				aOperationId = ERemConStatusApiSubunitInfo;
-
-				if(err == KErrCorrupt)
-					{
-					// Subunit response data varies in length, so the length
-					// set in SetSubunitInfoResponseDataL may be wrong.
-					aData.FillZ(KRemConStatusApiPageLength + KRemConStatusApiExtensionLength + KRemConStatusApiDefaultPageDataLength);
-				
-					// Stick some default data in there 
-					SetCommandDataFromInt(aData, KRemConStatusApiPageOffset, 
-						KRemConStatusApiPageLength, 0);	
-						
-					SetCommandDataFromInt(aData, KRemConStatusApiExtensionOffset, 
-						KRemConStatusApiExtensionLength, AVC::EIgnore);	
-
-					SetCommandDataFromInt(aData, KRemConStatusApiPageDataOffset, 
-						KRemConStatusApiDefaultPageDataLength, KRemConStatusApiDefaultPageData);	
-
-					err = KErrNone;
-					}
-				}
-			break;
-			}
-		default:
-			{
-			err = KErrNotSupported;
-			break;
-			}
-		}
-
-	return err;
-	}
-	
-/** Parses command data from the buffer.
-
-@param aCommandData The buffer from which to read the data.
-@param aVendorId On return, the vendor id
-@param aUnit On return, the unit
-@param aUnitType On return, the unit type 
-@param aExtendedUnitType On return, the extended unit type
-
-@internalComponent
-@released
-*/
-void CRemConAvrcpStatusConverter::SetUnitInfoResponseDataL(const TDesC8& aBearerData,
-	TDes8& aRemConData)
-	{
-	// AVRCP should pass us a sensible sized buffer!
-	__ASSERT_ALWAYS(aRemConData.MaxLength() >= KUnitInfoResponseLength, CRemConAvrcpStatusConverter::Panic(EAvrcpPassedTooSmallABuffer));
-
-	// Get rid of any junk
-	aRemConData.FillZ(KRemConStatusApiUnitLength + KRemConStatusApiUnitTypeLength
-					  + KRemConStatusApiExtendedUnitTypeLength
-					  + KRemConStatusApiVendorIdLength);
-
-	// Get unit id if there's enough data for it
-	if(aBearerData.Length() < KUnitIdOffset + KUnitIdLength)
-		{
-		User::Leave(KErrCorrupt);
-		}
-	TInt unit;
-	ReadCommandDataToInt(aBearerData, KUnitIdOffset, KUnitIdLength, unit);
-	unit &= KAVCSubunitIDMask;
-	SetCommandDataFromInt(aRemConData, KRemConStatusApiUnitOffset, 
-		KRemConStatusApiUnitLength, unit);
-	
-	// Get unit type (maybe extended) if there's enough data
-	if(aBearerData.Length() < KUnitTypeOffset + KUnitTypeLength)
-		{
-		User::Leave(KErrCorrupt);
-		}
-	TInt unitType;
-	ReadCommandDataToInt(aBearerData, KUnitTypeOffset, KUnitTypeLength, unitType);
-	unitType &= KAVCSubunitTypeMask;
-	unitType >>= KUnitTypeShift;
-	SetCommandDataFromInt(aRemConData, KRemConStatusApiUnitTypeOffset, 
-		KRemConStatusApiUnitTypeLength, unitType);
-	
-	TInt unitTypeExtend = 0;
-	TInt vendorIdOffset = KVendorIdBaseOffset;
-	if(unitType == KUnitTypeExtend)
-		{
-		// Extended unit type.  VendorId is offset by 1
-		vendorIdOffset++;
-		
-		// Read the next byte if it's there
-		if(aBearerData.Length() < KUnitTypeExtendOffset + 1)
-			{
-			User::Leave(KErrCorrupt);
-			}
-		ReadCommandDataToInt(aBearerData, KUnitTypeExtendOffset, 1, unitTypeExtend);
-		unitTypeExtend <<= 8;
-		
-		// 	Double extended unit type. 
-		if(unitTypeExtend == KUnitTypeExtendExtend)
-			{
-			// VendorId is offset by 1
-			vendorIdOffset++;
-			
-			// Read the next byte
-			TInt unitTypeExtendExtend = 0;
-			if(aBearerData.Length() < KUnitTypeExtendExtendOffset + 1)
-				{
-				User::Leave(KErrCorrupt);
-				}
-			ReadCommandDataToInt(aBearerData, KUnitTypeExtendExtendOffset, 1, 
-								 unitTypeExtendExtend);	
-			unitTypeExtend |= unitTypeExtendExtend;
-			}
-
-		SetCommandDataFromInt(aRemConData, KRemConStatusApiExtendedUnitTypeOffset, 
-			KRemConStatusApiExtendedUnitTypeLength, unitTypeExtend);
-		}		
-
-	// Get vendor id
-	if(aBearerData.Length() < vendorIdOffset + KVendorIdLength)
-		{
-		User::Leave(KErrCorrupt);
-		}
-	TInt vendorId;
-	ReadCommandDataToInt(aBearerData, vendorIdOffset, KVendorIdLength, vendorId);				
-	SetCommandDataFromInt(aRemConData, KRemConStatusApiVendorIdOffset, 
-		KRemConStatusApiVendorIdLength, vendorId);
-	}
-
-/** Parses command data from the buffer.
-
-@param aCommandData The buffer from which to read the data.
-@param aPage On return, the page
-@param aExtension On return, the extension
-@param aPageData On return, the page data
-
-@internalComponent
-@released
-*/
-void CRemConAvrcpStatusConverter::SetSubunitInfoResponseDataL(const TDesC8& aBearerData,
-	TDes8& aRemConData)
-	{
-	// AVRCP should pass us a sensible sized buffer!
-	__ASSERT_ALWAYS(aRemConData.MaxLength() >= KUnitInfoResponseLength, CRemConAvrcpStatusConverter::Panic(EAvrcpPassedTooSmallABuffer));
-
-	CAVCFrame* frame = CAVCFrame::NewL(aBearerData, AVC::EResponse); //Qualified
-	CleanupStack::PushL(frame);		
-	TPtrC8 ptr = frame->Data();
-	
-	// Work out how long a buffer we need for the RemCon data.
-	// This is KRemConStatusApiPageLength + KRemConStatusApiExtensionLength
-	// + the length of the page data.
-	// We can work out the length of the page data from the frame - 
-	// it's the remainder of the frame after KSubunitPageDataOffset.
-	// This gives us:
-	TInt remConDataLen = KRemConStatusApiPageLength 
-						+ KRemConStatusApiPageLength 
-						+ (ptr.Length() - KSubunitPageDataOffset);
-
-	if(aRemConData.MaxLength() < remConDataLen)
-		{
-		User::Leave(KErrCorrupt);
-		}
-
-	// Get rid of any junk
-	aRemConData.FillZ(remConDataLen);
-	
-	// Get page
-	if(aBearerData.Length() < KSubunitPageOffset + KSubunitPageLength)
-		{
-		User::Leave(KErrCorrupt);
-		}
-	TInt page;
-	ReadCommandDataToInt(aBearerData, KSubunitPageOffset, KSubunitPageLength, page);
-	page &= KSubunitPageMask;
-	SetCommandDataFromInt(aRemConData, KRemConStatusApiPageOffset, 
-		KRemConStatusApiPageLength, page);	
-		
-	// Get extension code
-	if(aBearerData.Length() < KSubunitExtensionOffset + KSubunitExtensionLength)
-		{
-		User::Leave(KErrCorrupt);
-		}
-	TInt extensionCode;
-	ReadCommandDataToInt(aBearerData, KSubunitExtensionOffset, KSubunitExtensionLength, 
-		extensionCode);
-	extensionCode &= KSubunitExtensionMask;
-	SetCommandDataFromInt(aRemConData, KRemConStatusApiExtensionOffset, 
-		KRemConStatusApiExtensionLength, extensionCode);		
-		
-	// Get page data
-	TPtrC8 pageDataPtr = aBearerData.Mid(KSubunitPageDataOffset);
-	aRemConData.Replace(KRemConStatusApiPageDataOffset, pageDataPtr.Length(), pageDataPtr);
-	
-	CleanupStack::PopAndDestroy(frame);	
-	}
-	
-/** Reads command data from the buffer to an int.
-
-@param aCommandData The buffer from which to read the data.
-@param aOffset The offset within aCommandData read from.
-@param aLength The length of data to read.  This must not be
-				more than 4.
-@param aValue On return, the value of the specified data section.
-
-@internalComponent
-@released
-*/	
-void CRemConAvrcpStatusConverter::ReadCommandDataToInt(const TDesC8& aCommandData, 
-	TInt aOffset, TInt aLength, TInt& aValue)
-	{
-	__ASSERT_DEBUG(aLength <= 4, CRemConAvrcpStatusConverter::Panic(EStatusConverterDataTooShort));
-
-	aValue = 0;
-	
-	for(TInt i = 0 ; i < aLength; i++)
-		{
-		aValue |= aCommandData[aOffset+i]<<(8*i);
-		}
-	}
-	
-/** Set the command data.  This overwrites the current
-contents of the data buffer.
-
-@param aCommandData The buffer in which to set the data.
-@param aOffset The offset within aCommandData to set the data.
-@param aLength The length of data to replace.
-@param aValue The new value for the replaced data.
-*/
-void CRemConAvrcpStatusConverter::SetCommandDataFromInt(TDes8& aCommandData, 
-	TInt aOffset, TInt aLength, TInt aValue)
-	{
-	__ASSERT_DEBUG(aLength <= 4, CRemConAvrcpStatusConverter::Panic(EStatusConverterDataTooShort));
-	
-	for(TInt i = 0; i < aLength; i++)
-		{
-		aCommandData[aOffset+i] = aValue >> (8*i);
-		}
-	}
-
-/** Utility Status Converter panic function.
-
-@param aPanic The panic number.
-*/
-void CRemConAvrcpStatusConverter::Panic(TStatusConverterPanic aPanic)
-	{
-	User::Panic(KStatusConverterPanicName, aPanic);
-	}
-
-//
-// End of file