| Norman James | fa2e76e | 2015-08-26 17:41:20 -0500 | [diff] [blame^] | 1 | #!/usr/bin/env python |
| 2 | |
| 3 | |
| 4 | import gobject |
| 5 | import dbus |
| 6 | import dbus.service |
| 7 | import dbus.mainloop.glib |
| 8 | import xml.etree.ElementTree as ET |
| 9 | import System |
| 10 | |
| 11 | DBUS_NAME = 'org.openbmc.managers.Sensors' |
| 12 | OBJ_NAME = '/org/openbmc/managers/Sensors' |
| 13 | |
| 14 | NORMAL = 0 |
| 15 | LOWER_WARNING = 1 |
| 16 | LOWER_CRITICAL = 2 |
| 17 | UPPER_WARNING = 3 |
| 18 | UPPER_CRITICAL = 4 |
| 19 | |
| 20 | |
| 21 | sensor_config = System.BarreleyeSensors() |
| 22 | |
| 23 | ## finds objects held by Dbus ObjectManager |
| 24 | def get_interface(bus_name): |
| 25 | obj_name = "/"+bus_name.replace('.','/') |
| 26 | obj = bus.get_object(bus_name, obj_name) |
| 27 | |
| 28 | #Find object in object manager and retrieve interface name |
| 29 | manager = dbus.Interface(obj,'org.freedesktop.DBus.ObjectManager') |
| 30 | objects = manager.GetManagedObjects() |
| 31 | obj_path = None |
| 32 | interface = None |
| 33 | |
| 34 | for o in objects: |
| 35 | for intf in objects[o].keys(): |
| 36 | if (intf.find('Sensor') > 0): |
| 37 | interface = intf |
| 38 | obj_path = o |
| 39 | |
| 40 | if (interface == None): |
| 41 | raise Exception("Unable to find sensor: "+obj_path) |
| 42 | |
| 43 | return [obj_path, interface] |
| 44 | |
| 45 | |
| 46 | class SensorManagement(dbus.service.Object): |
| 47 | def __init__(self,bus,name): |
| 48 | dbus.service.Object.__init__(self,bus,name) |
| 49 | self.sensor_cache = {} |
| 50 | for bus_name in bus.list_names(): |
| 51 | if (bus_name.find('org.openbmc.sensors')==0): |
| 52 | self.request_name(bus_name,"",bus_name) |
| 53 | |
| 54 | bus.add_signal_receiver(self.request_name, |
| 55 | dbus_interface = 'org.freedesktop.DBus', |
| 56 | signal_name = "NameOwnerChanged") |
| 57 | |
| 58 | |
| 59 | def request_name(self, bus_name, a, b): |
| 60 | if (len(b) > 0 and bus_name.find('org.openbmc.sensors') == 0): |
| 61 | if (sensor_config.has_key(bus_name) == True): |
| 62 | try: |
| 63 | print "Loading: "+bus_name |
| 64 | obj_info = get_interface(bus_name) |
| 65 | obj = bus.get_object(bus_name,obj_info[0]) |
| 66 | intf = dbus.Interface(obj,obj_info[1]) |
| 67 | intf.setThresholds(sensor_config[bus_name]['lower_critical'], |
| 68 | sensor_config[bus_name]['lower_warning'], |
| 69 | sensor_config[bus_name]['upper_warning'], |
| 70 | sensor_config[bus_name]['upper_critical']) |
| 71 | if (sensor_config[bus_name].has_key('parameters')): |
| 72 | intf.setConfigData(sensor_config[bus_name]['parameters']) |
| 73 | |
| 74 | except dbus.exceptions.DBusException, e: |
| 75 | # TODO: not sure what to do if can't find other services |
| 76 | print "Unable to find dependent services: ",e |
| 77 | else: |
| 78 | print "Sensor found on bus but no config: "+bus_name |
| 79 | if (len(b) == 0 and bus_name.find('org.openbmc') ==0): |
| 80 | print "Sensor stopped: "+bus_name |
| 81 | |
| 82 | @dbus.service.method(DBUS_NAME, |
| 83 | in_signature='s', out_signature='a{ss}') |
| 84 | def getAllSensors(self,obj_name): |
| 85 | return None |
| 86 | |
| 87 | @dbus.service.method(DBUS_NAME, |
| 88 | in_signature='s', out_signature='i') |
| 89 | def getSensorValue(self,obj_name): |
| 90 | sensor = self.sensor_cache[obj_name] |
| 91 | return sensor.get_value() |
| 92 | |
| 93 | @dbus.service.signal(DBUS_NAME) |
| 94 | def CriticalThreshold(self, obj): |
| 95 | print "Critical: "+obj |
| 96 | |
| 97 | @dbus.service.signal(DBUS_NAME) |
| 98 | def WarningThreshold(self, obj): |
| 99 | print "Warning: "+obj |
| 100 | |
| 101 | |
| 102 | if __name__ == '__main__': |
| 103 | dbus.mainloop.glib.DBusGMainLoop(set_as_default=True) |
| 104 | bus = dbus.SessionBus() |
| 105 | name = dbus.service.BusName(DBUS_NAME,bus) |
| 106 | obj = SensorManagement(bus,OBJ_NAME) |
| 107 | mainloop = gobject.MainLoop() |
| 108 | |
| 109 | print "Running SensorManagerService" |
| 110 | mainloop.run() |
| 111 | |