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      1 # Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
      2 # Use of this source code is governed by a BSD-style license that can be
      3 # found in the LICENSE file.
      4 
      5 import dbus
      6 import dbus.service
      7 
      8 import dbus_std_ifaces
      9 import pm_errors
     10 import utils
     11 
     12 from autotest_lib.client.cros.cellular import mm1_constants
     13 
     14 LOG_LEVELS = ['ERR', 'WARN', 'INFO', 'DEBUG']
     15 
     16 class ModemManager(dbus_std_ifaces.DBusObjectManager):
     17     """ Pseudomodem implementation of org.freedesktop.ModemManager1. """
     18     def __init__(self, bus):
     19         dbus_std_ifaces.DBusObjectManager.__init__(self, bus, mm1_constants.MM1)
     20         self.debug_level = 'INFO'
     21 
     22 
     23     @utils.log_dbus_method()
     24     @dbus.service.method(mm1_constants.I_MODEM_MANAGER)
     25     def ScanDevices(self):
     26         """ Starts a new scan for connected modem devices. """
     27         # TODO(armansito): For now this method is a noop. shill
     28         # doesn't use this method afaik, but it doesn't make sense
     29         # for a fake modem to do anything here anyway. Perhaps
     30         # we can give the pseudo modem manager a list of fake
     31         # modems upon initialization, and this method would add them?
     32         pass
     33 
     34 
     35     @utils.log_dbus_method()
     36     @dbus.service.method(mm1_constants.I_MODEM_MANAGER, in_signature='s')
     37     def SetLogging(self, level):
     38         """
     39         Sets logging verbosity.
     40 
     41         @param level: One of "ERR", "WARN", "INFO", "DEBUG"
     42 
     43         """
     44         if level not in LOG_LEVELS:
     45             raise pm_errors.MMCoreError(pm_errors.MMCoreError.INVALID_ARGS)
     46