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Tony Bark 2025-10-03 02:19:59 -04:00
commit f1384c11ee
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199
minorGems/io/serialPort/win32/SerialPortWin32.cpp Normal file
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/*
* Modification History
*
* 2003-March-24 Jason Rohrer
* Created.
*
* 2003-March-26 Jason Rohrer
* Fixed a line parsing bug (lines end with newline, not CR).
*
* 2003-April-4 Jason Rohrer
* Added function for dumping the read buffer.
*/
#include "minorGems/io/serialPort/SerialPort.h"
#include "minorGems/util/stringUtils.h"
// For now, we are using BBDSoft's COM port code
#include "COMPort.h"
SerialPort::SerialPort( int inBaud, int inParity, int inDataBits,
int inStopBits ) {
COMPort *port = new COMPort( "COM1" );
port->setHandshaking( false );
unsigned long baudRate = COMPort::br2400;
switch( inBaud ) {
case 1200:
baudRate = COMPort::br1200;
break;
case 2400:
baudRate = COMPort::br2400;
break;
case 4800:
baudRate = COMPort::br4800;
break;
case 9600:
baudRate = COMPort::br9600;
break;
case 19200:
baudRate = COMPort::br19200;
break;
case 38400:
baudRate = COMPort::br38400;
break;
case 57600:
baudRate = COMPort::br57600;
break;
default:
break;
}
port->setBitRate( baudRate );
switch( inParity ) {
case SerialPort::PARITY_NONE:
port->setParity( COMPort::None );
break;
case SerialPort::PARITY_EVEN:
port->setParity( COMPort::Even );
break;
case SerialPort::PARITY_ODD:
port->setParity( COMPort::Odd );
break;
default:
port->setParity( COMPort::None );
break;
}
switch( inDataBits ) {
case 5:
port->setDataBits( COMPort::db5 );
break;
case 6:
port->setDataBits( COMPort::db6 );
break;
case 7:
port->setDataBits( COMPort::db7 );
break;
case 8:
port->setDataBits( COMPort::db8 );
break;
default:
port->setDataBits( COMPort::db8 );
break;
}
switch( inStopBits ) {
case 1:
port->setStopBits( COMPort::sb1 );
break;
case 2:
port->setStopBits( COMPort::sb2 );
break;
default:
port->setStopBits( COMPort::sb1 );
break;
}
mNativeObjectPointer = (void *)port;
}
SerialPort::~SerialPort() {
if( mNativeObjectPointer != NULL ) {
COMPort *port = (COMPort *)mNativeObjectPointer;
delete port;
}
}
int SerialPort::sendLine( char *inLine ) {
if( mNativeObjectPointer != NULL ) {
COMPort *port = (COMPort *)mNativeObjectPointer;
int stringLength = strlen( inLine );
int numWritten = port->write( (void *)inLine, stringLength );
char *endLineString = "\n";
int numWrittenEndLine = port->write( (void *)endLineString, 1 );
if( numWritten == stringLength &&
numWrittenEndLine == 1 ) {
return 1;
}
else {
return -1;
}
}
else {
return -1;
}
}
char *SerialPort::receiveLine() {
if( mNativeObjectPointer != NULL ) {
COMPort *port = (COMPort *)mNativeObjectPointer;
char *buffer = new char[500];
// read up to first newline
int index = 0;
char lastCharRead = port->read();
while( lastCharRead != '\n' && index < 499 ) {
buffer[index] = lastCharRead;
lastCharRead = port->read();
index++;
}
char *returnString;
if( index > 0 ) {
buffer[ index ] = '\0';
returnString = stringDuplicate( buffer );
}
else {
returnString = NULL;
}
delete [] buffer;
return returnString;
}
else {
return NULL;
}
}
void SerialPort::dumpReceiveBuffer() {
if( mNativeObjectPointer != NULL ) {
COMPort *port = (COMPort *)mNativeObjectPointer;
port->dumpReceiveBuffer();
}
}