Merge branch 'playback' into 'master'

Play back bus_monitor.py recorded logs to can bus

See merge request py_ren/pyren!19

pyren/bus_playback.py

@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+
+import sys, os, argparse
+import mod_globals
+
+os.chdir(os.path.dirname(os.path.realpath(sys.argv[0])))
+
+import mod_elm
+
+parser = argparse.ArgumentParser(
+  version="bus_playback Version 0.1",
+  description = "bus_playback - playing back logs written by bus_monitor.py"
+)
+
+parser.add_argument('-p',
+  help="ELM327 com port name (or BT mac addr e.g 24:42:16:08:00:00)",
+  dest="port",
+  default="")
+
+parser.add_argument("-r",
+  help="com port rate during diagnostic session {38400[default],57600,115200,230400,500000}",
+  dest="rate",
+  default="38400",)
+
+parser.add_argument("--log",
+  help="log file name",
+  dest="logfile",
+  default="")
+
+parser.add_argument(
+  'log',
+  help='the log file name to be played back')
+
+options = parser.parse_args()
+
+if not options.port and mod_globals.os != 'android':
+  parser.print_help()
+
+  try:
+    from serial.tools import list_ports
+  except ImportError, e:
+    print >> sys.stderr, "WARNING:", e
+    exit(-1)
+
+  print "\nAvailable COM ports:"
+  for port, desc, hwid in sorted(list(list_ports.comports())):
+    print "%-30s \n\tdesc: %s \n\thwid: %s" % (port, desc.decode("windows-1251"), hwid)
+  print ""
+
+  exit(2)
+
+mod_globals.opt_port      = options.port
+mod_globals.opt_rate      = int(options.rate)
+mod_globals.opt_log       = options.logfile
+
+try:
+  playbackfile = open(options.log)
+except IOError, e:
+  print >> sys.stderr, "ERROR:", e
+  exit(2)
+
+print 'Opening ELM'
+elm = mod_elm.ELM(mod_globals.opt_port, mod_globals.opt_speed, mod_globals.opt_log )
+
+if mod_globals.opt_speed < mod_globals.opt_rate:
+  elm.port.soft_boudrate( mod_globals.opt_rate)
+
+print 'Init    ELM'
+print elm.cmd("at z")
+#print elm.cmd("at ws")
+
+print elm.cmd("at d1")
+print elm.cmd("at h1")
+print elm.cmd("at al")
+print elm.cmd("at at 0")
+print elm.cmd("at st 10")
+print elm.cmd("at r 0")
+
+print elm.cmd("at cea")
+print elm.cmd("at sp 6")
+print elm.cmd("at al")
+print elm.cmd("at caf 0")
+print elm.cmd("at v1")
+print elm.cmd("at bi")
+
+print 'Playing data back...'
+for n, line in enumerate(open(options.log)):
+  t, _, addr, len, data = line.split(None,4)
+  data = data.split(None, 8)
+  print elm.cmd("at sh %s" % addr)
+  print elm.cmd(''.join(data[:8]))
+
+playbackfile.close()