140 lines
4.3 KiB
C
140 lines
4.3 KiB
C
|
/*===========================================================================
|
||
|
FILE:
|
||
|
Comm.h
|
||
|
|
||
|
DESCRIPTION:
|
||
|
Declaration of cComm class
|
||
|
|
||
|
PUBLIC CLASSES AND METHODS:
|
||
|
cComm
|
||
|
This class wraps low level port communications
|
||
|
|
||
|
Copyright (c) 2012, Code Aurora Forum. All rights reserved.
|
||
|
|
||
|
Redistribution and use in source and binary forms, with or without
|
||
|
modification, are permitted provided that the following conditions are met:
|
||
|
* Redistributions of source code must retain the above copyright
|
||
|
notice, this list of conditions and the following disclaimer.
|
||
|
* Redistributions in binary form must reproduce the above copyright
|
||
|
notice, this list of conditions and the following disclaimer in the
|
||
|
documentation and/or other materials provided with the distribution.
|
||
|
* Neither the name of Code Aurora Forum nor
|
||
|
the names of its contributors may be used to endorse or promote
|
||
|
products derived from this software without specific prior written
|
||
|
permission.
|
||
|
|
||
|
|
||
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
||
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||
|
POSSIBILITY OF SUCH DAMAGE.
|
||
|
===========================================================================*/
|
||
|
|
||
|
//---------------------------------------------------------------------------
|
||
|
// Include Files
|
||
|
//---------------------------------------------------------------------------
|
||
|
#include "Event.h"
|
||
|
#include "Connection.h"
|
||
|
|
||
|
//---------------------------------------------------------------------------
|
||
|
// Pragmas
|
||
|
//---------------------------------------------------------------------------
|
||
|
#pragma once
|
||
|
|
||
|
/*=========================================================================*/
|
||
|
// Class cComm
|
||
|
/*=========================================================================*/
|
||
|
class cComm : public cConnection
|
||
|
{
|
||
|
public:
|
||
|
// Constructor
|
||
|
cComm();
|
||
|
|
||
|
// Destructor
|
||
|
~cComm();
|
||
|
|
||
|
// Is this object valid?
|
||
|
bool IsValid();
|
||
|
|
||
|
// Connect to the specified port
|
||
|
bool Connect( LPCSTR pPort );
|
||
|
|
||
|
// Run an IOCTL on the open file handle
|
||
|
int SendCtl(
|
||
|
UINT ioctlReq,
|
||
|
void * pData );
|
||
|
|
||
|
// Disconnect from the current port
|
||
|
bool Disconnect();
|
||
|
|
||
|
// Configure the port with the passed in parameters
|
||
|
bool ConfigureSettings( termios * pSettings );
|
||
|
|
||
|
// Return the current port settings
|
||
|
bool GetSettings( termios * pSettings );
|
||
|
|
||
|
// Cancel any in-progress I/O
|
||
|
bool CancelIO();
|
||
|
|
||
|
// Cancel any in-progress receive operation
|
||
|
bool CancelRx();
|
||
|
|
||
|
// Cancel any in-progress transmit operation
|
||
|
bool CancelTx();
|
||
|
|
||
|
// Receive data
|
||
|
bool RxData(
|
||
|
BYTE * pBuf,
|
||
|
ULONG bufSz,
|
||
|
cIOCallback * pCallback );
|
||
|
|
||
|
// Transmit data
|
||
|
bool TxData(
|
||
|
const BYTE * pBuf,
|
||
|
ULONG bufSz );
|
||
|
|
||
|
// (Inline) Return current port name
|
||
|
std::string GetPortName() const
|
||
|
{
|
||
|
return mPortName;
|
||
|
};
|
||
|
|
||
|
// Are we currently connected to a port?
|
||
|
bool IsConnected()
|
||
|
{
|
||
|
return (mPort != INVALID_HANDLE_VALUE);
|
||
|
};
|
||
|
|
||
|
protected:
|
||
|
/* Name of current port */
|
||
|
std::string mPortName;
|
||
|
|
||
|
/* Handle to COM port */
|
||
|
int mPort;
|
||
|
|
||
|
// Cancel the write request?
|
||
|
bool mbCancelWrite;
|
||
|
|
||
|
/* Buffer */
|
||
|
BYTE * mpBuffer;
|
||
|
|
||
|
/* Buffer size */
|
||
|
ULONG mBuffSz;
|
||
|
|
||
|
/* Pipe for comunication with thread */
|
||
|
int mCommandPipe[2];
|
||
|
|
||
|
/* Thread ID of Rx Thread. */
|
||
|
pthread_t mRxThreadID;
|
||
|
|
||
|
// Rx thread is allowed complete access
|
||
|
friend void * RxThread( void * pData );
|
||
|
};
|