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bluetooth/gavdp/test/tavsrcOperations.cpp
branchRCL_3
changeset 24 e9b924a62a66
parent 0 29b1cd4cb562 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetooth/gavdp/test/tavsrcOperations.cpp	Wed Sep 01 12:38:54 2010 +0100
@@ -0,0 +1,260 @@
+// Copyright (c) 2007-2009 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 "tavsrcOperations.h"
+
+// The opcodes used internally to CTavsrcOperations
+static const TInt KTavsrcOpCodeConnect = 0x00000001;
+static const TInt KTavsrcOpCodeCancel = 0x00000002;
+static const TInt KTavsrcOpCodeDiscoverSEPs = 0x00000004;
+static const TInt KTavsrcOpCodeCreateBearers = 0x00000008;
+static const TInt KTavsrcOpCodeCloseBearers = 0x00000010;
+static const TInt KTavsrcOpCodeContentProtection = 0x00000020;
+static const TInt KTavsrcOpCodeGetCapabilities = 0x00000040;
+static const TInt KTavsrcOpCodeStartStreams = 0x00000080;
+static const TInt KTavsrcOpCodeSuspendStreams = 0x00000100;
+static const TInt KTavsrcOpCodeEchoStorm = 0x00000200;
+static const TInt KTavsrcOpCodeAbort = 0x00000400;
+static const TInt KTavsrcOpCodeStream = 0x00000800;
+static const TInt KTavsrcOpCodeStreamFaster = 0x00001000;
+static const TInt KTavsrcOpCodeStreamSlower = 0x00002000;
+static const TInt KTavsrcOpCodeAutoStream = 0x00004000;
+static const TInt KTavsrcOpCodeStopStream = 0x00008000;
+static const TInt KTavsrcOpCodeRegisterSEP = 0x00010000;
+static const TInt KTavsrcOpCodeRegisterMultipleSEPs = 0x00020000;
+static const TInt KTavsrcOpCodeStartSrc = 0x00040000;
+static const TInt KTavsrcOpCodeStopSrc = 0x00080000;
+static const TInt KTavsrcOpCodeDisconnectSrc = 0x00100000;
+static const TInt KTavsrcOpCodeConfigureSEP = 0x00200000;
+static const TInt KTavsrcOpCodeReconfigureSEP = 0x00400000;
+static const TInt KTavsrcOpCodePacketDropIoctl = 0x00800000;
+static const TInt KTavsrcOpCodeVolumeUp = 0x01000000;
+static const TInt KTavsrcOpCodeVolumeDown = 0x02000000;
+static const TInt KTavsrcOpCodeBackwards = 0x04000000;
+static const TInt KTavsrcOpCodeForwards = 0x08000000;
+static const TInt KTavsrcOpCodePlay = 0x10000000;
+static const TInt KTavsrcOpCodeStop = 0x20000000;
+static const TInt KTavsrcOpCodeExit = 0x40000000;
+static const TInt KTavsrcOpCodeToggleSafeMode = 0x80000000;
+
+// all the AVRCP opcodes
+static const TInt KTavsrcOpCodeAvrcp = KTavsrcOpCodeVolumeUp | KTavsrcOpCodeVolumeDown | KTavsrcOpCodeBackwards | KTavsrcOpCodeForwards | KTavsrcOpCodePlay | KTavsrcOpCodeStop;
+
+// all always available opcodes
+static const TInt KTavsrcOpCodeAlwaysAvailable = KTavsrcOpCodeAvrcp | KTavsrcOpCodeToggleSafeMode | KTavsrcOpCodeCancel | KTavsrcOpCodeExit | KTavsrcOpCodeStopSrc | KTavsrcOpCodeRegisterSEP | KTavsrcOpCodeRegisterMultipleSEPs;
+
+// all possible opcodes
+static const TInt KTavsrcOpCodeAll = 0xffffffff;
+
+// The next opcodes for every command, 0 means to not change state
+static const TInt KTavsrcOpConnectNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeDiscoverSEPs | KTavsrcOpCodeAutoStream;
+static const TInt KTavsrcOpCancelNextOperations = 0;
+static const TInt KTavsrcOpDiscoverSEPsNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeGetCapabilities;
+static const TInt KTavsrcOpCreateBearersNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeStartStreams | KTavsrcOpCodeCloseBearers;
+static const TInt KTavsrcOpCloseBearersNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeCreateBearers;
+static const TInt KTavsrcOpContentProtectionNextOperations = 0;
+static const TInt KTavsrcOpGetCapabilitiesNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeConfigureSEP;
+static const TInt KTavsrcOpStartStreamsNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeStream | KTavsrcOpCodeCloseBearers | KTavsrcOpCodeSuspendStreams | KTavsrcOpCodeAbort;
+static const TInt KTavsrcOpSuspendStreamsNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeStartStreams | KTavsrcOpCodeAbort | KTavsrcOpCodeReconfigureSEP;
+static const TInt KTavsrcOpEchoStormNextOperations = 0;
+static const TInt KTavsrcOpAbortNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeStartStreams | KTavsrcOpCodeCloseBearers;
+static const TInt KTavsrcOpStreamNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeStopStream | KTavsrcOpCodeCloseBearers | KTavsrcOpCodeSuspendStreams | KTavsrcOpCodeAbort | KTavsrcOpCodeStreamFaster | KTavsrcOpCodeStreamSlower;
+static const TInt KTavsrcOpStreamFasterNextOperations = 0;
+static const TInt KTavsrcOpStreamSlowerNextOperations = 0;
+static const TInt KTavsrcOpAutoStreamNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeStopStream | KTavsrcOpCodeCloseBearers | KTavsrcOpCodeSuspendStreams;
+static const TInt KTavsrcOpStopStreamNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeCloseBearers | KTavsrcOpCodeStream | KTavsrcOpCodeSuspendStreams | KTavsrcOpCodeAbort;
+static const TInt KTavsrcOpRegisterSEPNextOperations = 0;
+static const TInt KTavsrcOpRegisterMultipleSEPsNextOperations = 0;
+static const TInt KTavsrcOpStartSrcNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeConnect;
+static const TInt KTavsrcOpStopSrcNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeStartSrc;
+static const TInt KTavsrcOpDisconnectSrcNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeConnect;
+static const TInt KTavsrcOpConfigureSEPNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeCreateBearers;
+static const TInt KTavsrcOpReconfigureSEPNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeStartStreams | KTavsrcOpCodeAbort | KTavsrcOpCodeReconfigureSEP;
+static const TInt KTavsrcOpPacketDropIoctlNextOperations = 0;
+static const TInt KTavsrcOpVolumeUpNextOperations = 0;
+static const TInt KTavsrcOpVolumeDownNextOperations = 0;
+static const TInt KTavsrcOpBackwardsNextOperations = 0;
+static const TInt KTavsrcOpForwardsNextOperations = 0;
+static const TInt KTavsrcOpPlayNextOperations = 0;
+static const TInt KTavsrcOpStopNextOperations = 0;
+static const TInt KTavsrcOpExitNextOperations = 0;
+static const TInt KTavsrcOpToggleSafeModeNextOperations = 0;
+
+// TTavsrcOperation
+TTavsrcOperation::TTavsrcOperation(TInt aOpCode, TChar aOperation, TInt aNextOpCodes)
+	: iOpCode(aOpCode), iOperation(aOperation), iNextOpCodes(aNextOpCodes)
+	{	
+	}
+
+/*static*/ TBool TTavsrcOperation::OperationMatchesAndAllowed(const TTavsrcOperation& aOpA, const TTavsrcOperation& aOpB)
+	{
+	return ((aOpA.iOperation == aOpB.iOperation) && (aOpA.iNextOpCodes & aOpB.iOpCode));
+	}
+
+TInt TTavsrcOperation::GetNextOpCodes() const
+	{
+	return iNextOpCodes;
+	}
+
+// CTavsrcOperations
+CTavsrcOperations* CTavsrcOperations::NewL()
+	{
+	CTavsrcOperations* operations = new (ELeave) CTavsrcOperations;
+	CleanupStack::PushL(operations);
+	operations->ConstructL();
+	CleanupStack::Pop(operations);
+	return operations;
+	}
+
+void CTavsrcOperations::ConstructL()
+	{
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeConnect, KTavsrcOpConnect, KTavsrcOpConnectNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeCancel, KTavsrcOpCancel, KTavsrcOpCancelNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeDiscoverSEPs, KTavsrcOpDiscoverSEPs, KTavsrcOpDiscoverSEPsNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeCreateBearers, KTavsrcOpCreateBearers, KTavsrcOpCreateBearersNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeCloseBearers, KTavsrcOpCloseBearers, KTavsrcOpCloseBearersNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeContentProtection, KTavsrcOpContentProtection, KTavsrcOpContentProtectionNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeGetCapabilities, KTavsrcOpGetCapabilities, KTavsrcOpGetCapabilitiesNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStartStreams, KTavsrcOpStartStreams, KTavsrcOpStartStreamsNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeSuspendStreams, KTavsrcOpSuspendStreams, KTavsrcOpSuspendStreamsNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeEchoStorm, KTavsrcOpEchoStorm, KTavsrcOpEchoStormNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeAbort, KTavsrcOpAbort, KTavsrcOpAbortNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStream, KTavsrcOpStream, KTavsrcOpStreamNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStreamFaster, KTavsrcOpStreamFaster, KTavsrcOpStreamFasterNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStreamSlower, KTavsrcOpStreamSlower, KTavsrcOpStreamSlowerNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeAutoStream, KTavsrcOpAutoStream, KTavsrcOpAutoStreamNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStopStream, KTavsrcOpStopStream, KTavsrcOpStopStreamNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeRegisterSEP, KTavsrcOpRegisterSEP, KTavsrcOpRegisterSEPNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeRegisterMultipleSEPs, KTavsrcOpRegisterMultipleSEPs, KTavsrcOpRegisterMultipleSEPsNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStartSrc, KTavsrcOpStartSrc, KTavsrcOpStartSrcNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStopSrc, KTavsrcOpStopSrc, KTavsrcOpStopSrcNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeDisconnectSrc, KTavsrcOpDisconnectSrc, KTavsrcOpDisconnectSrcNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeConfigureSEP, KTavsrcOpConfigureSEP, KTavsrcOpConfigureSEPNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeReconfigureSEP, KTavsrcOpReconfigureSEP, KTavsrcOpReconfigureSEPNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodePacketDropIoctl, KTavsrcOpPacketDropIoctl, KTavsrcOpPacketDropIoctlNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeVolumeUp, KTavsrcOpVolumeUp, KTavsrcOpVolumeUpNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeVolumeDown, KTavsrcOpVolumeDown, KTavsrcOpVolumeDownNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeBackwards, KTavsrcOpBackwards, KTavsrcOpBackwardsNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeForwards, KTavsrcOpForwards, KTavsrcOpForwardsNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodePlay, KTavsrcOpPlay, KTavsrcOpPlayNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStop, KTavsrcOpStop, KTavsrcOpStopNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeExit, KTavsrcOpExit, KTavsrcOpExitNextOperations));
+	iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeToggleSafeMode, KTavsrcOpToggleSafeMode, KTavsrcOpToggleSafeModeNextOperations));
+	
+	// tavsrc always starts the src initially
+	iLastOperationIndex = GetAllowedOperationIndex(KTavsrcOpStartSrc, KTavsrcOpCodeAll);
+	User::LeaveIfError(iLastOperationIndex);
+	}
+
+CTavsrcOperations::CTavsrcOperations()
+	: iPendingOperationIndex(KErrNotFound), iSafeMode(ETrue)
+	{
+	}
+
+CTavsrcOperations::~CTavsrcOperations()
+	{
+	iOperations.Close();
+	}
+
+// Returns the index into iOperations array if aOperation is allowed as the next operation
+// according to aAllowedNextOpcodes or an error
+TInt CTavsrcOperations::GetAllowedOperationIndex(TChar aOperation, TInt aAllowedNextOpcodes)
+	{
+	TIdentityRelation<TTavsrcOperation> matchFunc(TTavsrcOperation::OperationMatchesAndAllowed);
+	return (iOperations.Find(TTavsrcOperation(0, aOperation, aAllowedNextOpcodes), matchFunc));
+	}
+
+TBool CTavsrcOperations::IsOperationAllowed(TChar aOperation)
+	{
+	TBool ret = EFalse;
+	
+	if (!SafeMode())
+		{
+		// if we are not in safe mode then any operation is allowed
+		ret = ETrue;
+		}
+	else
+		{ 
+		ret = (GetAllowedOperationIndex(aOperation, iOperations[iLastOperationIndex].GetNextOpCodes()) >= 0);
+		}
+	return ret;
+	}
+
+TInt CTavsrcOperations::BeginOperation(TChar aOperation)
+	{
+	TInt rerr = KErrNone;
+
+	if ((iPendingOperationIndex >= 0) && (aOperation != KTavsrcOpCancel))
+		{
+		// an operation is in progress, block until it has completed
+		rerr = KErrNotReady;
+		}
+	else
+		{
+		TInt allowedNextOpCodes = iOperations[iLastOperationIndex].GetNextOpCodes();
+		
+		if (!SafeMode())
+			{
+			// not in safe mode so any operation should be allowed
+			allowedNextOpCodes = KTavsrcOpCodeAll;
+			}
+		
+		TInt index = GetAllowedOperationIndex(aOperation, allowedNextOpCodes);
+
+		if (index >= 0)
+			{
+			// we have a valid operation
+			iPendingOperationIndex = index;
+			}
+		else
+			{
+			// aOperation is not a supported command, return error
+			rerr = index;
+			}
+		}
+	return rerr;
+	}
+
+void CTavsrcOperations::EndOperation(TChar aOperation, TInt aError)
+	{
+	// if an error has occured the state hasn't moved on
+	if (!aError)
+		{
+		// check to see if there is an outstanding operation
+		if (iPendingOperationIndex < 0)
+			{
+			// we have no pending operation, this means that the remote has moved our state on,
+			// to keep the allowed operations in step pretend that we moved the state on ourselves
+			iPendingOperationIndex = GetAllowedOperationIndex(aOperation, KTavsrcOpCodeAll);
+			}
+	
+		// update current state if there is any valid operations in the pending operation
+		if (iOperations[iPendingOperationIndex].GetNextOpCodes() != 0)
+			{
+			iLastOperationIndex = iPendingOperationIndex;
+			}
+		}
+	iPendingOperationIndex = KErrNotFound;
+	}
+
+TBool CTavsrcOperations::SafeMode()
+	{
+	return iSafeMode;
+	}
+
+void CTavsrcOperations::SetSafeMode(TBool aSafeMode)
+	{
+	iSafeMode = aSafeMode;
+	}
MCL/sf/os/bt