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Diffstat (limited to 'pyserial/serial/serialjava.py')
| -rw-r--r-- | pyserial/serial/serialjava.py | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/pyserial/serial/serialjava.py b/pyserial/serial/serialjava.py deleted file mode 100644 index 2541534..0000000 --- a/pyserial/serial/serialjava.py +++ /dev/null @@ -1,260 +0,0 @@ -#!jython -# -# Python Serial Port Extension for Win32, Linux, BSD, Jython -# module for serial IO for Jython and JavaComm -# see __init__.py -# -# (C) 2002-2008 Chris Liechti <cliechti@gmx.net> -# this is distributed under a free software license, see license.txt - -from serialutil import * - -def my_import(name): - mod = __import__(name) - components = name.split('.') - for comp in components[1:]: - mod = getattr(mod, comp) - return mod - - -def detect_java_comm(names): - """try given list of modules and return that imports""" - for name in names: - try: - mod = my_import(name) - mod.SerialPort - return mod - except (ImportError, AttributeError): - pass - raise ImportError("No Java Communications API implementation found") - - -# Java Communications API implementations -# http://mho.republika.pl/java/comm/ - -comm = detect_java_comm([ - 'javax.comm', # Sun/IBM - 'gnu.io', # RXTX -]) - - -def device(portnumber): - """Turn a port number into a device name""" - enum = comm.CommPortIdentifier.getPortIdentifiers() - ports = [] - while enum.hasMoreElements(): - el = enum.nextElement() - if el.getPortType() == comm.CommPortIdentifier.PORT_SERIAL: - ports.append(el) - return ports[portnumber].getName() - - -class JavaSerial(SerialBase): - """Serial port class, implemented with Java Communications API and - thus usable with jython and the appropriate java extension.""" - - def open(self): - """Open port with current settings. This may throw a SerialException - if the port cannot be opened.""" - if self._port is None: - raise SerialException("Port must be configured before it can be used.") - if type(self._port) == type(''): # strings are taken directly - portId = comm.CommPortIdentifier.getPortIdentifier(self._port) - else: - portId = comm.CommPortIdentifier.getPortIdentifier(device(self._port)) # numbers are transformed to a comport id obj - try: - self.sPort = portId.open("python serial module", 10) - except Exception, msg: - self.sPort = None - raise SerialException("Could not open port: %s" % msg) - self._reconfigurePort() - self._instream = self.sPort.getInputStream() - self._outstream = self.sPort.getOutputStream() - self._isOpen = True - - def _reconfigurePort(self): - """Set communication parameters on opened port.""" - if not self.sPort: - raise SerialException("Can only operate on a valid port handle") - - self.sPort.enableReceiveTimeout(30) - if self._bytesize == FIVEBITS: - jdatabits = comm.SerialPort.DATABITS_5 - elif self._bytesize == SIXBITS: - jdatabits = comm.SerialPort.DATABITS_6 - elif self._bytesize == SEVENBITS: - jdatabits = comm.SerialPort.DATABITS_7 - elif self._bytesize == EIGHTBITS: - jdatabits = comm.SerialPort.DATABITS_8 - else: - raise ValueError("unsupported bytesize: %r" % self._bytesize) - - if self._stopbits == STOPBITS_ONE: - jstopbits = comm.SerialPort.STOPBITS_1 - elif stopbits == STOPBITS_ONE_POINT_FIVE: - self._jstopbits = comm.SerialPort.STOPBITS_1_5 - elif self._stopbits == STOPBITS_TWO: - jstopbits = comm.SerialPort.STOPBITS_2 - else: - raise ValueError("unsupported number of stopbits: %r" % self._stopbits) - - if self._parity == PARITY_NONE: - jparity = comm.SerialPort.PARITY_NONE - elif self._parity == PARITY_EVEN: - jparity = comm.SerialPort.PARITY_EVEN - elif self._parity == PARITY_ODD: - jparity = comm.SerialPort.PARITY_ODD - elif self._parity == PARITY_MARK: - jparity = comm.SerialPort.PARITY_MARK - elif self._parity == PARITY_SPACE: - jparity = comm.SerialPort.PARITY_SPACE - else: - raise ValueError("unsupported parity type: %r" % self._parity) - - jflowin = jflowout = 0 - if self._rtscts: - jflowin |= comm.SerialPort.FLOWCONTROL_RTSCTS_IN - jflowout |= comm.SerialPort.FLOWCONTROL_RTSCTS_OUT - if self._xonxoff: - jflowin |= comm.SerialPort.FLOWCONTROL_XONXOFF_IN - jflowout |= comm.SerialPort.FLOWCONTROL_XONXOFF_OUT - - self.sPort.setSerialPortParams(self._baudrate, jdatabits, jstopbits, jparity) - self.sPort.setFlowControlMode(jflowin | jflowout) - - if self._timeout >= 0: - self.sPort.enableReceiveTimeout(self._timeout*1000) - else: - self.sPort.disableReceiveTimeout() - - def close(self): - """Close port""" - if self._isOpen: - if self.sPort: - self._instream.close() - self._outstream.close() - self.sPort.close() - self.sPort = None - self._isOpen = False - - def makeDeviceName(self, port): - return device(port) - - # - - - - - - - - - - - - - - - - - - - - - - - - - - def inWaiting(self): - """Return the number of characters currently in the input buffer.""" - if not self.sPort: raise portNotOpenError - return self._instream.available() - - def read(self, size=1): - """Read size bytes from the serial port. If a timeout is set it may - return less characters as requested. With no timeout it will block - until the requested number of bytes is read.""" - if not self.sPort: raise portNotOpenError - read = bytearray() - if size > 0: - while len(read) < size: - x = self._instream.read() - if x == -1: - if self.timeout >= 0: - break - else: - read.append(x) - return bytes(read) - - def write(self, data): - """Output the given string over the serial port.""" - if not self.sPort: raise portNotOpenError - if not isinstance(data, (bytes, bytearray)): - raise TypeError('expected %s or bytearray, got %s' % (bytes, type(data))) - self._outstream.write(data) - return len(data) - - def flushInput(self): - """Clear input buffer, discarding all that is in the buffer.""" - if not self.sPort: raise portNotOpenError - self._instream.skip(self._instream.available()) - - def flushOutput(self): - """Clear output buffer, aborting the current output and - discarding all that is in the buffer.""" - if not self.sPort: raise portNotOpenError - self._outstream.flush() - - def sendBreak(self, duration=0.25): - """Send break condition. Timed, returns to idle state after given duration.""" - if not self.sPort: raise portNotOpenError - self.sPort.sendBreak(duration*1000.0) - - def setBreak(self, level=1): - """Set break: Controls TXD. When active, to transmitting is possible.""" - if self.fd is None: raise portNotOpenError - raise SerialException("The setBreak function is not implemented in java.") - - def setRTS(self, level=1): - """Set terminal status line: Request To Send""" - if not self.sPort: raise portNotOpenError - self.sPort.setRTS(level) - - def setDTR(self, level=1): - """Set terminal status line: Data Terminal Ready""" - if not self.sPort: raise portNotOpenError - self.sPort.setDTR(level) - - def getCTS(self): - """Read terminal status line: Clear To Send""" - if not self.sPort: raise portNotOpenError - self.sPort.isCTS() - - def getDSR(self): - """Read terminal status line: Data Set Ready""" - if not self.sPort: raise portNotOpenError - self.sPort.isDSR() - - def getRI(self): - """Read terminal status line: Ring Indicator""" - if not self.sPort: raise portNotOpenError - self.sPort.isRI() - - def getCD(self): - """Read terminal status line: Carrier Detect""" - if not self.sPort: raise portNotOpenError - self.sPort.isCD() - - -# assemble Serial class with the platform specific implementation and the base -# for file-like behavior. for Python 2.6 and newer, that provide the new I/O -# library, derive from io.RawIOBase -try: - import io -except ImportError: - # classic version with our own file-like emulation - class Serial(JavaSerial, FileLike): - pass -else: - # io library present - class Serial(JavaSerial, io.RawIOBase): - pass - - -if __name__ == '__main__': - s = Serial(0, - baudrate=19200, # baudrate - bytesize=EIGHTBITS, # number of databits - parity=PARITY_EVEN, # enable parity checking - stopbits=STOPBITS_ONE, # number of stopbits - timeout=3, # set a timeout value, None for waiting forever - xonxoff=0, # enable software flow control - rtscts=0, # enable RTS/CTS flow control - ) - s.setRTS(1) - s.setDTR(1) - s.flushInput() - s.flushOutput() - s.write('hello') - sys.stdio.write('%r\n' % s.read(5)) - sys.stdio.write('%s\n' % s.inWaiting()) - del s - - |