bool QSerialPort::open(int block)
{
if( block== 1) portDesc = ::open(portName.toAscii(),O_RDWR);
else portDesc = ::open(portName.toAscii(),O_RDWR | O_NONBLOCK );
if(portDesc == -1)
{
return false;
}
portOpen = true;
tcgetattr(portDesc, &portConfig);
portConfig.c_cflag|=(CLOCAL | CREAD);
portConfig.c_lflag&=(~(ICANON|ECHO|ECHOE|ECHOK|ECHONL|ISIG));
portConfig.c_iflag&=(~(IGNBRK|BRKINT|PARMRK|ISTRIP |INLCR| IGNCR|ICRNL|IXON)); // (~(INPCK|IGNPAR|PARMRK|ISTRIP|IXANY));
portConfig.c_iflag&=~(ICRNL);
portConfig.c_oflag&=(~OPOST);
tcsetattr(portDesc, TCSANOW, &portConfig);
setBaudRate(settings.baudRate);
setDataBits(settings.dataBits);
setFlowControl(settings.flowControl);
setParity(settings.parity);
setStopBits(settings.stopBits);
setDtr();
setRts();
connect(&portFile, SIGNAL(readyRead()), this, SLOT(slotNotifierActivated()));
return true;
}
/**
* Initialize the interface.
*
* The base class handles all hardware initialization for us, so we only
* have to set up the correct control line states to power the interface.
*/
int T_TX_InterfaceSerPIC::init (SimpleXMLTransfer *config)
{
#if DEBUG_TX_INTERFACE > 0
std::cout << "T_TX_InterfaceSerPIC::init ()\n";
#endif
int ret = T_TX_InterfaceSerial::init (config);
if (ret == 0)
{
// initialized successfully, now turn on the power supply for the
// interface hardware (careful, could throw an exception)
try
{
setRts (true);
setDtr (false);
}
catch (CharDevice::ConfigureDeviceException e)
{
setErrMsg ("Setting Rts/Dtr states failed.");
cerr << "Serial interface initialization: " << getErrMsg () << endl;
ret = 1;
}
int default_sync_byte = DEFAULT_SYNC_BYTE_19200;
int default_button_channel = DEFAULT_BUTTON_CHANNEL_19200;
if (T_TX_InterfaceSerial::getBaudRate() == 9600)
{
default_sync_byte = DEFAULT_SYNC_BYTE_9600;
default_button_channel = DEFAULT_BUTTON_CHANNEL_9600;
}
// read sync and button byte settings from config file
SimpleXMLTransfer *port = config->getChild(getXmlChildName() + ".port", true);
ucSyncByte = port->attributeAsInt("sync", default_sync_byte);
iSPIC_ButtonChannel = port->attributeAsInt("button_channel", default_button_channel);
#if DEBUG_TX_INTERFACE > 0
std::cout << " Configured sync byte: 0x" << std::hex << int(ucSyncByte) << std::dec;
std::cout << ", " << std::string((iSPIC_ButtonChannel == 0) ? "no" : "has") << " button channel";
std::cout << std::endl;
#endif
}
return ret;
}
