update for open source

klippy/parsedump.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+# Script to parse a serial port data dump
+#
+# Copyright (C) 2016  Kevin O'Connor <kevin@koconnor.net>
+#
+# This file may be distributed under the terms of the GNU GPLv3 license.
+import os, sys, logging
+import msgproto
+
+def read_dictionary(filename):
+    dfile = open(filename, 'rb')
+    dictionary = dfile.read()
+    dfile.close()
+    return dictionary
+
+def main():
+    dict_filename, data_filename = sys.argv[1:]
+
+    dictionary = read_dictionary(dict_filename)
+
+    mp = msgproto.MessageParser()
+    mp.process_identify(dictionary, decompress=False)
+
+    f = open(data_filename, 'rb')
+    fd = f.fileno()
+    data = bytearray()
+    while 1:
+        newdata = os.read(fd, 4096)
+        if not newdata:
+            break
+        data += bytearray(newdata)
+        while 1:
+            l = mp.check_packet(data)
+            if l == 0:
+                break
+            if l < 0:
+                logging.error("Invalid data")
+                data = data[-l:]
+                continue
+            msgs = mp.dump(data[:l])
+            sys.stdout.write('\n'.join(msgs[1:]) + '\n')
+            data = data[l:]
+
+if __name__ == '__main__':
+    main()