diff -r 000000000000 -r 29b1cd4cb562 bluetooth/btstack/avctp/common/avctppacketstatics.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/bluetooth/btstack/avctp/common/avctppacketstatics.h Fri Jan 15 08:13:17 2010 +0200 @@ -0,0 +1,92 @@ +// Copyright (c) 2005-2009 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 +*/ + +#ifndef AVCTPPACKETSTATICS_H +#define AVCTPPACKETSTATICS_H + +#include +#include + +namespace SymbianAvctp +{ + +const static TUint8 KUndefinedTransactionLabel = SymbianAvctp::KMaxTransactionLabel; + +const static TUint8 KIsValidPidMask = 0x01; +const static TUint8 KMessageTypeMask = 0x02; +const static TUint8 KPacketTypeMask = 0x0C; +const static TUint8 KTransactionMask = 0xF0; + +const static TUint KNormalHeaderPidOffset = 1; +const static TUint KStartHeaderPidOffset = 2; +const static TUint KNumFragmentsOffset = 1; + +const static TUint KTransactionLabelShift = 4; +const static TUint KPacketTypeShift = 2; + +const static TUint KResponseMsgBit = 2; + +/** +Types of packet, as indicated in the packet header. +Note these are the actual values used in the AVCTP v1.0 +spec. +*/ +enum TPacketType + { + /** An unfragmented AVCTP packet */ + ENormalPkt = 0x0, + /** An AVCTP fragment start packet */ + EStartFrag = 0x1, + /** An AVCTP fragment continue packet */ + EContinueFrag = 0x2, + /** An AVCTP fragment end packet */ + EEndFrag = 0x3, + /** This value should never be used in practise. It's only for initialisation */ + EUnknownPkt = 0x4, + }; + +/** +Offset of the data within an AVCTP packet +*/ +enum TPduHeaderLength + { + /** For an unfragmented AVCTP packet */ + ENormalHeaderLength = 0x3, + /** For an AVCTP fragment start packet */ + EStartFragHeaderLength = 0x4, + /** For an AVCTP fragment continue or end packet */ + EOtherFragHeaderLength = 0x1, + /** The minimum length of the three headers */ + EMinimumHeaderLength = 0x1, + }; + +// Avctp packet parsing functions +IMPORT_C TMessageType MessageType(const TDesC8& aData); +IMPORT_C TPacketType PacketType(const TDesC8& aData); +IMPORT_C TTransactionLabel TransactionLabel(const TDesC8& aData); +IMPORT_C TBool IsValidPid(const TDesC8& aData); +IMPORT_C TPid Pid(const TDesC8& aData); +IMPORT_C TUint8 FragmentsInSdu(const TDesC8& aData); +IMPORT_C TPduHeaderLength ConvertPacketTypeToHeaderLength(TPacketType aPktType); + +} // end of namespace SymbianAvctp + +#endif // AVCTPPACKETSTATICS_H +