199 lines
4.2 KiB
C++
199 lines
4.2 KiB
C++
/*
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* Modification History
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*
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* 2003-March-24 Jason Rohrer
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* Created.
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*
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* 2003-March-26 Jason Rohrer
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* Fixed a line parsing bug (lines end with newline, not CR).
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*
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* 2003-April-4 Jason Rohrer
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* Added function for dumping the read buffer.
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*/
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#include "minorGems/io/serialPort/SerialPort.h"
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#include "minorGems/util/stringUtils.h"
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// For now, we are using BBDSoft's COM port code
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#include "COMPort.h"
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SerialPort::SerialPort( int inBaud, int inParity, int inDataBits,
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int inStopBits ) {
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COMPort *port = new COMPort( "COM1" );
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port->setHandshaking( false );
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unsigned long baudRate = COMPort::br2400;
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switch( inBaud ) {
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case 1200:
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baudRate = COMPort::br1200;
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break;
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case 2400:
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baudRate = COMPort::br2400;
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break;
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case 4800:
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baudRate = COMPort::br4800;
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break;
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case 9600:
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baudRate = COMPort::br9600;
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break;
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case 19200:
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baudRate = COMPort::br19200;
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break;
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case 38400:
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baudRate = COMPort::br38400;
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break;
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case 57600:
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baudRate = COMPort::br57600;
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break;
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default:
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break;
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}
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port->setBitRate( baudRate );
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switch( inParity ) {
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case SerialPort::PARITY_NONE:
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port->setParity( COMPort::None );
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break;
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case SerialPort::PARITY_EVEN:
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port->setParity( COMPort::Even );
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break;
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case SerialPort::PARITY_ODD:
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port->setParity( COMPort::Odd );
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break;
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default:
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port->setParity( COMPort::None );
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break;
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}
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switch( inDataBits ) {
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case 5:
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port->setDataBits( COMPort::db5 );
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break;
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case 6:
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port->setDataBits( COMPort::db6 );
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break;
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case 7:
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port->setDataBits( COMPort::db7 );
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break;
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case 8:
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port->setDataBits( COMPort::db8 );
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break;
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default:
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port->setDataBits( COMPort::db8 );
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break;
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}
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switch( inStopBits ) {
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case 1:
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port->setStopBits( COMPort::sb1 );
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break;
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case 2:
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port->setStopBits( COMPort::sb2 );
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break;
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default:
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port->setStopBits( COMPort::sb1 );
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break;
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}
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mNativeObjectPointer = (void *)port;
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}
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SerialPort::~SerialPort() {
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if( mNativeObjectPointer != NULL ) {
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COMPort *port = (COMPort *)mNativeObjectPointer;
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delete port;
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}
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}
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int SerialPort::sendLine( char *inLine ) {
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if( mNativeObjectPointer != NULL ) {
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COMPort *port = (COMPort *)mNativeObjectPointer;
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int stringLength = strlen( inLine );
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int numWritten = port->write( (void *)inLine, stringLength );
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char *endLineString = "\n";
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int numWrittenEndLine = port->write( (void *)endLineString, 1 );
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if( numWritten == stringLength &&
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numWrittenEndLine == 1 ) {
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return 1;
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}
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else {
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return -1;
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}
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}
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else {
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return -1;
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}
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}
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char *SerialPort::receiveLine() {
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if( mNativeObjectPointer != NULL ) {
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COMPort *port = (COMPort *)mNativeObjectPointer;
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char *buffer = new char[500];
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// read up to first newline
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int index = 0;
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char lastCharRead = port->read();
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while( lastCharRead != '\n' && index < 499 ) {
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buffer[index] = lastCharRead;
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lastCharRead = port->read();
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index++;
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}
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char *returnString;
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if( index > 0 ) {
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buffer[ index ] = '\0';
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returnString = stringDuplicate( buffer );
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}
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else {
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returnString = NULL;
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}
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delete [] buffer;
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return returnString;
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}
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else {
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return NULL;
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}
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}
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void SerialPort::dumpReceiveBuffer() {
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if( mNativeObjectPointer != NULL ) {
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COMPort *port = (COMPort *)mNativeObjectPointer;
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port->dumpReceiveBuffer();
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}
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}
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