1 // Copyright (c) 2006-2009 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 /**

    17  @file

    18  @internalComponent

    19 */

    20 

    21 #ifndef HCTLTIRECEIVER_H

    22 #define HCTLTIRECEIVER_H

    23 

    24 #include <e32base.h>

    25 #include <bluetooth/hci/hcievents.h>

    26 #include <bluetooth/hciframelogger.h>

    27 

    28 

    29 class CHCTLTi;

    30 class RBusDevComm;

    31 

    32 /**

    33 	This is the class that implements the UART specifics of the Receiver AO and framer.

    34 	

    35 	This class is not intented for derivation.

    36 */

    37 NONSHARABLE_CLASS(CHCTLTiReceiver) : public CActive

    38     {

    39 public:

    40 	static CHCTLTiReceiver* NewL(CHCTLTi& aHCTLTi, RBusDevComm& aPort);

    41 	~CHCTLTiReceiver();

    42 

    43 	// Called to initiate the initial read on the port.

    44 	void Start();

    45 	

    46 private:

    47 	CHCTLTiReceiver(CHCTLTi& aHCTLTi, RBusDevComm& aPort);

    48 	void ConstructL();

    49 

    50 	// Helper methods

    51 	void QueueReadForNextFrame(TUint16 aOffset, TUint16 aBytesRequired);

    52 	void ProcessData();

    53 

    54 	// From CActive

    55 	virtual void RunL();

    56 	virtual void DoCancel();

    57 

    58 private:

    59     enum THctlReceiverState 

    60     	{ 

    61       	EWaitingForHctlHeaderByte,

    62 	  	EWaitingForHciHeader,

    63 	  	EWaitingForHciPayload,

    64 	  	EInvalidDataReceived,

    65 	  	};

    66 

    67 	// Set the receive buffer equal to the 3-DH5 packet size.

    68 	// This value should be changed by licensees if the controller

    69 	// is exceeding this packet size.

    70 	

    71 	// 3-DH5.  Payload = 1021 octets.

    72 	// Buffer length = payload + HCTL overhead + ACL Header

    73 	static const TUint16 KHCTLRecvBufSize = 1026;

    74 

    75 	CHCTLTi& iHCTLTi;

    76 	THctlReceiverState iState;

    77 

    78 	TUint8 iCurrentHCIPacketType;

    79 

    80 	RBuf8 iReceiveBuffer;

    81 	TPtr8 iReceiveBufPtr;

    82 

    83 	RBusDevComm& iPort;

    84 	DECLARE_HCI_LOGGER

    85 	};

    86 

    87 #endif // HCTLTIRECEIVER_H

    88