1 files changed, 166 insertions, 0 deletions
diff --git a/tools/bitdiff.py b/tools/bitdiff.py
new file mode 100644
index 0000000..d06bdb2
--- /dev/null
+++ b/tools/bitdiff.py
@@ -0,0 +1,166 @@
+#!/usr/bin/env python
+#
+# Copyright 2013 Jens Jensen AF5MI <kd4tjx@yahoo.com>
+
+import sys
+import os
+import argparse
+import time
+
+
+def printDiff(pos, byte1, byte2, args):
+    bits1 = '{0:08b}'.format(byte1)
+    bits2 = '{0:08b}'.format(byte2)
+    print "@%04Xh" % pos
+    print "1:%02Xh, %sb" % (byte1, bits1)
+    print "2:%02Xh, %sb" % (byte2, bits2)
+    if args.csv:
+        writeDiffCSV(pos, byte1, byte2, args)
+
+
+def writeDiffCSV(pos, byte1, byte2, args):
+    bits1 = '{0:08b}'.format(byte1)
+    bits2 = '{0:08b}'.format(byte2)
+    csvline = '%s, %s, %04X, %02X, %s, %02X, %s, %s, %s' % \
+        (args.file1, args.file2, pos, byte1, bits1,
+         byte2, bits2, args.setting, args.value)
+    if not os.path.isfile(args.csv):
+        fh = open(args.csv, "w")
+        header = "filename1, filename2, byte_offset, byte1, " \
+            "bits1, byte2, bits2, item_msg, value_msg"
+        fh.write(header + os.linesep)
+    else:
+        fh = open(args.csv, "a")
+    fh.write(csvline + os.linesep)
+    fh.close()
+
+
+def compareFiles(args):
+    f1 = open(args.file1, "rb")
+    f1.seek(args.offset)
+    f2 = open(args.file2, "rb")
+    f2.seek(args.offset)
+
+    while True:
+        pos = f1.tell() - args.offset
+        c1 = f1.read(1)
+        c2 = f2.read(1)
+        if not (c1 and c2):
+            break
+        b1 = ord(c1)
+        b2 = ord(c2)
+        if b1 != b2:
+            printDiff(pos, b1, b2, args)
+
+    pos = f1.tell() - args.offset
+    print "bytes read: %02d" % pos
+    f1.close()
+    f2.close()
+
+
+def compareFilesDat(args):
+    f1 = open(args.file1, "r")
+    f1contents = f1.read()
+    f1.close()
+    f2 = open(args.file2, "r")
+    f2contents = f2.read()
+    f2.close()
+
+    f1strlist = f1contents.split()
+    f1intlist = map(int, f1strlist)
+    f2strlist = f2contents.split()
+    f2intlist = map(int, f2strlist)
+    f1bytes = bytearray(f1intlist)
+    f2bytes = bytearray(f2intlist)
+
+    length = len(f1intlist)
+    for i in range(length):
+        b1 = f1bytes[i]
+        b2 = f2bytes[i]
+        pos = i
+        if b1 != b2:
+            printDiff(pos, b1, b2, args)
+
+    pos = length
+    print "bytes read: %02d" % pos
+
+
+def convertFileToBin(args):
+    f1 = open(args.file1, "r")
+    f1contents = f1.read()
+    f1.close()
+    f1strlist = f1contents.split()
+    f1intlist = map(int, f1strlist)
+    f1bytes = bytearray(f1intlist)
+    f2 = open(args.file2, "wb")
+    f2.write(f1bytes)
+    f2.close
+
+
+def convertFileToDat(args):
+    f1 = open(args.file1, "rb")
+    f1contents = f1.read()
+    f1.close()
+    f2 = open(args.file2, "w")
+    for i in range(0, len(f1contents)):
+        f2.write(" %d " % (ord(f1contents[i]), ))
+        if i % 16 == 15:
+            f2.write("\r\n")
+    f2.close
+
+
+# main
+
+ap = argparse.ArgumentParser(description="byte-/bit- comparison of two files")
+ap.add_argument("file1", help="first (reference) file to parse")
+ap.add_argument("file2", help="second file to parse")
+
+mutexgrp1 = ap.add_mutually_exclusive_group()
+mutexgrp1.add_argument("-o", "--offset", default=0,
+                       help="offset (hex) to start comparison")
+mutexgrp1.add_argument("-d", "--dat", action="store_true",
+                       help="process input files from .DAT/.ADJ format "
+                            "(from 'jujumao' oem programming software "
+                            "for chinese radios)")
+mutexgrp1.add_argument("--convert2bin", action="store_true",
+                       help="convert file1 from .dat/.adj to "
+                       "binary image file2")
+mutexgrp1.add_argument("--convert2dat", action="store_true",
+                       help="convert file1 from bin to .dat/.adj file2")
+
+ap.add_argument("-w", "--watch", action="store_true",
+                help="'watch' changes. runs in a loop")
+
+csvgrp = ap.add_argument_group("csv output")
+csvgrp.add_argument("-c", "--csv",
+                    help="file to append csv results. format: filename1, "
+                         "filename2, byte_offset, byte1, bits1, byte2, "
+                         "bits2, item_msg, value_msg")
+csvgrp.add_argument("-s", "--setting",
+                    help="user-meaningful field indicating setting/item "
+                         "modified, e.g. 'beep' or 'txtone'")
+csvgrp.add_argument("-v", "--value",
+                    help="user-meaningful field indicating values "
+                         "changed, e.g. 'true->false' or '110.9->100.0'")
+
+args = ap.parse_args()
+if args.offset:
+    args.offset = int(args.offset, 16)
+
+print "f1:", args.file1, " f2:", args.file2
+if args.setting or args.value:
+    print "setting:", args.setting, "- value:", args.value
+
+while True:
+    if (args.dat):
+        compareFilesDat(args)
+    elif (args.convert2bin):
+        convertFileToBin(args)
+    elif (args.convert2dat):
+        convertFileToDat(args)
+    else:
+        compareFiles(args)
+    if not args.watch:
+        break
+    print "------"
+    time.sleep(delay)