stripped down msdos version Dave Haynes

not yet itegraded with automatic detection but direcly importable

1 files changed, 229 insertions, 0 deletions

diff --git a/pyserial/serial/sermsdos.py b/pyserial/serial/sermsdos.py
new file mode 100644
index 0000000..c16d1bd
--- /dev/null
+++ b/pyserial/serial/sermsdos.py
@@ -0,0 +1,229 @@
+# sermsdos.py
+#
+# History:
+#
+#   3rd September 2002                      Dave Haynes
+#   1. First defined
+#
+# Although this code should run under the latest versions of
+# Python, on DOS-based platforms such as Windows 95 and 98,
+# it has been specifically written to be compatible with
+# PyDOS, available at:
+# http://www.python.org/ftp/python/wpy/dos.html
+#
+# PyDOS is a stripped-down version of Python 1.5.2 for
+# DOS machines. Therefore, in making changes to this file,
+# please respect Python 1.5.2 syntax. In addition, please
+# limit the width of this file to 60 characters.
+#
+# Note also that the modules in PyDOS contain fewer members
+# than other versions, so we are restricted to using the
+# following:
+#
+# In module os:
+# -------------
+# environ, chdir, getcwd, getpid, umask, fdopen, close,
+# dup, dup2, fstat, lseek, open, read, write, O_RDONLY,
+# O_WRONLY, O_RDWR, O_APPEND, O_CREAT, O_EXCL, O_TRUNC,
+# access, F_OK, R_OK, W_OK, X_OK, chmod, listdir, mkdir,
+# remove, rename, renames, rmdir, stat, unlink, utime,
+# execl, execle, execlp, execlpe, execvp, execvpe, _exit,
+# system.
+#
+# In module os.path:
+# ------------------
+# curdir, pardir, sep, altsep, pathsep, defpath, linesep.
+#
+
+import os
+import sys
+import string
+
+BAUD_RATES = {
+                110: "11",
+                150: "15",
+                300: "30",
+                600: "60",
+                1200: "12",
+                2400: "24",
+                4800: "48",
+                9600: "96",
+                19200: "19"}
+                
+(PARITY_NONE, PARITY_EVEN, PARITY_ODD, PARITY_MARK,
+PARITY_SPACE) = range(5)
+(STOPBITS_ONE, STOPBITS_ONEANDAHALF,
+STOPBITS_TWO) = (1, 1.5, 2)
+FIVEBITS, SIXBITS, SEVENBITS, EIGHTBITS = (5,6,7,8)
+(RETURN_ERROR, RETURN_BUSY, RETURN_RETRY, RETURN_READY,
+RETURN_NONE) = ('E', 'B', 'P', 'R', 'N')
+portNotOpenError = ValueError('port not open')
+
+class SerialException(Exception):
+    pass
+
+class Serial:
+    """
+       port: number of device; numbering starts at
+            zero. if everything fails, the user can
+            specify a device string, note that this
+            isn't portable any more
+       baudrate: baud rate
+       bytesize: number of databits
+       parity: enable parity checking
+       stopbits: number of stopbits
+       timeout: set a timeout (None for waiting forever)
+       xonxoff: enable software flow control
+       rtscts: enable RTS/CTS flow control
+       retry: DOS retry mode
+    """
+    def __init__(self,
+                 port,
+                 baudrate = 9600,
+                 bytesize = EIGHTBITS,
+                 parity = PARITY_NONE,
+                 stopbits = STOPBITS_ONE,
+                 timeout = None,
+                 xonxoff = 0,
+                 rtscts = 0,
+                 retry = RETURN_RETRY
+                 ):
+
+        if type(port) == type(''):
+        #strings are taken directly
+            self.portstr = port
+        else:
+        #numbers are transformed to a string
+            self.portstr = 'COM%d' % (port+1)
+
+        self.baud = BAUD_RATES[baudrate]
+        self.bytesize = str(bytesize)
+
+        if parity == PARITY_NONE:
+            self.parity = 'N'
+        elif parity == PARITY_EVEN:
+            self.parity = 'E'
+        elif parity == PARITY_ODD:
+            self.parity = 'O'
+        elif parity == PARITY_MARK:
+            self.parity = 'M'
+        elif parity == PARITY_SPACE:
+            self.parity = 'S'
+
+        self.stop = str(stopbits)
+        self.retry = retry
+        self.filename = "sermsdos.tmp"
+
+        self._config(self.portstr, self.baud, self.parity,
+        self.bytesize, self.stop, self.retry, self.filename)
+
+    def __del__(self):
+        self.close()
+
+    def close(self):
+        pass
+
+    def _config(self, port, baud, parity, data, stop, retry,
+        filename):
+        comString = string.join(("MODE ", port, ":"
+        , " BAUD= ", baud, " PARITY= ", parity
+        , " DATA= ", data, " STOP= ", stop, " RETRY= ",
+        retry, " > ", filename ), '')
+        os.system(comString)
+
+    def setBaudrate(self, baudrate):
+        self._config(self.portstr, BAUD_RATES[baudrate],
+        self.parity, self.bytesize, self.stop, self.retry,
+        self.filename)
+
+    def inWaiting(self):
+        """returns the number of bytes waiting to be read"""
+        raise NotImplementedError
+
+    def read(self, num = 1):
+        "Read num bytes from serial port"
+        handle = os.open(self.portstr,
+        os.O_RDONLY | os.O_BINARY)
+        # print os.fstat(handle)
+        rv = os.read(handle, num)
+        os.close(handle)
+        return rv
+
+    def write(self, s):
+        "Write string to serial port"
+        handle = os.open(self.portstr,
+        os.O_WRONLY | os.O_BINARY)
+        rv = os.write(handle, s)
+        os.close(handle)
+        return rv
+
+    def flushInput(self):
+        raise NotImplementedError
+
+    def flushOutput(self):
+        raise NotImplementedError
+
+    def sendBreak(self):
+        raise NotImplementedError
+
+    def setRTS(self,level=1):
+        """Set terminal status line"""
+        raise NotImplementedError
+
+    def setDTR(self,level=1):
+        """Set terminal status line"""
+        raise NotImplementedError
+
+    def getCTS(self):
+        """Eead terminal status line"""
+        raise NotImplementedError
+
+    def getDSR(self):
+        """Eead terminal status line"""
+        raise NotImplementedError
+
+    def getRI(self):
+        """Eead terminal status line"""
+        raise NotImplementedError
+
+    def getCD(self):
+        """Eead terminal status line"""
+        raise NotImplementedError
+
+    def readline(self, size=None):
+        raise NotImplementedError
+
+    def readlines(self, sizehint=None):
+        raise NotImplementedError
+
+    def xreadlines(self, sizehint=None):
+        raise NotImplementedError
+
+    def writelines(self, sequence):
+        raise NotImplementedError
+
+    def flush(self):
+        raise NotImplementedError
+
+    def __repr__(self):
+        return string.join(( "<Serial>: ", self.portstr
+        , self.baud, self.parity, self.bytesize, self.stop,
+        self.retry , self.filename), ' ')
+
+if __name__ == '__main__':
+    print __name__
+    s = Serial(0)
+    print s
+
+
+
+
+
+
+
+
+
+
+
+
+