1 //

     2 // * Copyright 2004 Neusoft America Inc.

     3 // * All rights reserved.

     4 // * This component and the accompanying materials are made available

     5 // * under the terms of the Eclipse Public License v1.0

     6 // * which accompanies this distribution, and is available

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

     8 // *

     9 // * Contributors:

    10 // * Keith Collins (Neusoft America Inc.)  original software development and additional code and modifications.

    11 // * Thomas Gahagen (Neusoft America Inc.)  additional code and modifications.

    12 // * Zhen Yuan (Neusoft America Inc.)  additional code and modifications.

    13 // *

    14 // * Description: This file contains the declaration for class CCommFrameReaderAo.

    15 // *              Class CCommFrameReaderAo is used to request a read from the serial port LDD.

    16 // *              Class CommFrameReaderAo is an active object and is run by the active

    17 // *              scheduler when the LDD has completed the CSY's read request.

    18 // *

    19 //

    20 

    21 // CommFrameReader.h

    22 

    23 /** @file CommFrameReaderAo.h

    24  *

    25  * 

    26  */

    27 

    28 #ifndef _CCOMMFRAMEREADERAO_H_

    29 #define _CCOMMFRAMEREADERAO_H_

    30 

    31 #include "CommReadWriteBaseAo.h"

    32 #include "CsyGlobals.h"

    33 

    34 class CCsyMsgBufBpFrame;

    35 

    36 /** @class CCommFrameReaderAo CommFrameReaderAo.h "CommFrameReaderAo.h"

    37  *  @brief Class CCommFrameReaderAo is used to request a read from 

    38  *  the serial port LDD. Class CommFrameReaderAo is an active object

    39  *  and is run by the active scheduler when the LDD has completed

    40  *  the CSY's read request. There is one instance of CCommFrameReaderAo.

    41  */

    42 class CCommFrameReaderAo : public CCommReadWriteBaseAo

    43 	{

    44 public:

    45 	enum TCsyFrameReaderState

    46 		{

    47 		ECsyWaitingForStartFlag  = 0,

    48 		ECsyWaitingForFrameStart = 1,

    49 		ECsyWaitingForFrameData  = 2,

    50 		ECsyWaitingForEndOfFrame = 3

    51 		};

    52 

    53 	static CCommFrameReaderAo* NewL(CPortFactory* aParent, CMux0710Protocol* aMux0710Protocol);

    54 	~CCommFrameReaderAo();

    55 

    56 	void Read();

    57 	void ReadCancel();

    58 

    59 public:// from CActive

    60 	virtual void DoCancel();

    61 	virtual void RunL();

    62 

    63 private:

    64 	CCommFrameReaderAo(CPortFactory* aParent, CMux0710Protocol* aMux0710Protocol);

    65 	void ConstructL();

    66 

    67 	void NonMuxed();

    68 	void BasicOption();

    69 	void AdvancedOption();

    70  

    71 	TBool CheckFCS(TDes8& aBuffer, TInt aLen, TUint8 aSuppliedChecksum);

    72 

    73 	void AddToReceivedFramesList(CCsyMsgBufBpFrame* aBpFrame);

    74 

    75 private:

    76 	TCsyFrameReaderState	iFrameReaderState;

    77 	CCsyMsgBufBpFrame*		iFrameBuf;

    78 

    79 	TBool iESCRecved;

    80 

    81 	};

    82 

    83 #endif  //_CCOMMFRAMEREADERAO_H_