author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 02:58:21 +0300 | |
changeset 4 | b8d1455fddc0 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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//////////////////////////////////////////////////////////////////////////////////////// |
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// statserial.h |
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// Serial transport class definition |
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//////////////////////////////////////////////////////////////////////////////////////// |
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#ifndef STATSERIAL_H |
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#define STATSERIAL_H |
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#include "statcommon.h" |
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#include "stattransport.h" |
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// COM port settings |
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// There is a problem with the use of ::ReadFile as this is a blocking |
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// operation called in a critical section. If the call blocks for too |
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// long and the user closes the thread then the section is lost for ever. |
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// Reduce the timeouts to prevent the threads locking when there is |
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// a link error. This is the wrong thing to do as we should really |
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// update the reading to check the port first and query if data |
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// is available. |
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#define STAT_WRITETOTALTIMEOUTMULTIPLIER 0 |
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#define STAT_WRITETOTALTIMEOUTCONSTANT 1000 |
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#define STAT_READINTERVALTIMEOUT 0 |
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#define STAT_READTOTALTIMEOUTMULTIPLIER 0 |
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#if defined _DEBUG |
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// In a release build wait a few seconds. |
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// In a debug build wait for longer as we may be debugging and |
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// pausing at break-points and generally slowing things up a bit. |
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#define STAT_READTOTALTIMEOUTCONSTANT (10 * 1000) |
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#else // defined _DEBUG |
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#define STAT_READTOTALTIMEOUTCONSTANT 1000 |
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#endif // defined _DEBUG |
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#define STAT_BAUDRATE CBR_115200 |
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#define STAT_BYTESIZE 8 |
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#define STAT_PARITY NOPARITY |
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#define STAT_STOPBITS ONESTOPBIT |
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class CSTATSerial : public CSTATTransport |
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{ |
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public: |
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CSTATSerial(STATCONNECTTYPE eConnect); // Request that when this object |
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// is created then it knows what |
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// implementation of serial it is. |
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// We could use sub-classes but there |
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// is so little difference we handle |
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// all serial transports as one case. |
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// The only difference is in the packet |
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// size which we store as an object |
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// data field. |
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~CSTATSerial(); |
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int Initialise(void); |
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int Connect(const char *pAddress = NULL); |
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int Send(const char cIdentifier, const char *pData = NULL, const unsigned long ulLength = 0); |
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int Receive(char *cIdentifier, char **ppData = NULL, unsigned long *pLength = NULL); |
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int Disconnect(void); |
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int Release(void); |
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unsigned int GetMaxPacketSize(void) const; // Override base class method |
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// to specify that we have |
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// a limit to the pakcet size |
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// and the specific limit |
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// depends upon the serial |
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// transport we represent. |
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|
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private: |
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bool OpenComPort(const char *pAddress); |
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int ReceiveBytes( char *buff, unsigned long size ); |
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|
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HANDLE hComPort; // com port to work with |
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unsigned long int iMaxPacketSize; |
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// Holds the maximum size of the |
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// packets we send. |
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char *pBuffer; // Holds received data |
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unsigned long int iBufferLength; |
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// Holds the length of the receive data |
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// buffer |
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}; |
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|
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inline unsigned int CSTATSerial::GetMaxPacketSize(void) const |
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{ |
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return (iMaxPacketSize); |
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} |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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#endif |