| #!/usr/bin/python -u |
| |
| import sys |
| import subprocess |
| import gobject |
| import dbus |
| import dbus.service |
| import dbus.mainloop.glib |
| import os |
| import time |
| import obmc.dbuslib.propertycacher as PropertyCacher |
| from obmc.dbuslib.bindings import DbusProperties, DbusObjectManager, get_dbus |
| import obmc.enums |
| import obmc_system_config as System |
| import obmc.dbuslib.introspection |
| import obmc.utils.misc |
| |
| DBUS_NAME = 'org.openbmc.managers.System' |
| OBJ_NAME = '/org/openbmc/managers/System' |
| HEARTBEAT_CHECK_INTERVAL = 20000 |
| STATE_START_TIMEOUT = 10 |
| INTF_SENSOR = 'org.openbmc.SensorValue' |
| INTF_ITEM = 'org.openbmc.InventoryItem' |
| INTF_CONTROL = 'org.openbmc.Control' |
| |
| |
| class SystemManager(DbusProperties,DbusObjectManager): |
| def __init__(self,bus,obj_name): |
| DbusProperties.__init__(self) |
| DbusObjectManager.__init__(self) |
| dbus.service.Object.__init__(self,bus,obj_name) |
| self.bus = bus |
| |
| bus.add_signal_receiver( |
| self.bus_handler, |
| dbus_interface=dbus.BUS_DAEMON_IFACE, |
| signal_name='NameOwnerChanged') |
| bus.add_signal_receiver(self.NewObjectHandler, |
| signal_name = "InterfacesAdded", sender_keyword = 'bus_name') |
| bus.add_signal_receiver(self.SystemStateHandler,signal_name = "GotoSystemState") |
| |
| self.Set(DBUS_NAME,"current_state","") |
| self.system_states = {} |
| self.bus_name_lookup = {} |
| self.bin_path = os.path.dirname(os.path.realpath(sys.argv[0])) |
| |
| for name in System.APPS.keys(): |
| sys_state = System.APPS[name]['system_state'] |
| if (self.system_states.has_key(sys_state) == False): |
| self.system_states[sys_state] = [] |
| self.system_states[sys_state].append(name) |
| |
| ## replace symbolic path in ID_LOOKUP |
| for category in System.ID_LOOKUP: |
| for key in System.ID_LOOKUP[category]: |
| val = System.ID_LOOKUP[category][key] |
| new_val = val.replace("<inventory_root>",System.INVENTORY_ROOT) |
| System.ID_LOOKUP[category][key] = new_val |
| |
| self.SystemStateHandler(System.SYSTEM_STATES[0]) |
| |
| if not os.path.exists(PropertyCacher.CACHE_PATH): |
| print "Creating cache directory: "+PropertyCacher.CACHE_PATH |
| os.makedirs(PropertyCacher.CACHE_PATH) |
| |
| for s in self.bus.list_names(): |
| if obmc.utils.misc.org_dot_openbmc_match(s): |
| self.bus_handler(s, '', s) |
| |
| self.InterfacesAdded(obj_name,self.properties) |
| print "SystemManager Init Done" |
| |
| |
| def try_next_state(self): |
| current_state = self.Get(DBUS_NAME,"current_state") |
| if current_state not in System.EXIT_STATE_DEPEND: |
| return |
| |
| if all(System.EXIT_STATE_DEPEND[current_state].values()): |
| print "All required objects started for "+current_state |
| self.gotoNextState() |
| |
| |
| def SystemStateHandler(self,state_name): |
| ## clearing object started flags |
| current_state = self.Get(DBUS_NAME,"current_state") |
| try: |
| for obj_path in System.EXIT_STATE_DEPEND[current_state]: |
| System.EXIT_STATE_DEPEND[current_state][obj_path] = 0 |
| except: |
| pass |
| |
| print "Running System State: "+state_name |
| if (self.system_states.has_key(state_name)): |
| for name in self.system_states[state_name]: |
| self.start_process(name) |
| |
| if (state_name == "BMC_INIT"): |
| ## Add poll for heartbeat |
| gobject.timeout_add(HEARTBEAT_CHECK_INTERVAL, self.heartbeat_check) |
| |
| try: |
| cb = System.ENTER_STATE_CALLBACK[state_name] |
| for methd in cb.keys(): |
| obj = bus.get_object(cb[methd]['bus_name'],cb[methd]['obj_name'],introspect=False) |
| method = obj.get_dbus_method(methd,cb[methd]['interface_name']) |
| method() |
| except: |
| pass |
| |
| self.Set(DBUS_NAME,"current_state",state_name) |
| |
| def gotoNextState(self): |
| s = 0 |
| current_state = self.Get(DBUS_NAME,"current_state") |
| for i in range(len(System.SYSTEM_STATES)): |
| if (System.SYSTEM_STATES[i] == current_state): |
| s = i+1 |
| |
| if (s == len(System.SYSTEM_STATES)): |
| print "ERROR SystemManager: No more system states" |
| else: |
| new_state_name = System.SYSTEM_STATES[s] |
| print "SystemManager Goto System State: "+new_state_name |
| self.SystemStateHandler(new_state_name) |
| |
| |
| @dbus.service.method(DBUS_NAME, |
| in_signature='', out_signature='s') |
| def getSystemState(self): |
| return self.Get(DBUS_NAME,"current_state") |
| |
| def doObjectLookup(self,category,key): |
| bus_name = "" |
| obj_path = "" |
| intf_name = INTF_ITEM |
| try: |
| obj_path = System.ID_LOOKUP[category][key] |
| bus_name = self.bus_name_lookup[obj_path] |
| parts = obj_path.split('/') |
| if (parts[3] == 'sensors'): |
| intf_name = INTF_SENSOR |
| except Exception as e: |
| print "ERROR SystemManager: "+str(e)+" not found in lookup" |
| |
| return [bus_name,obj_path,intf_name] |
| |
| @dbus.service.method(DBUS_NAME, |
| in_signature='ss', out_signature='(sss)') |
| def getObjectFromId(self,category,key): |
| return self.doObjectLookup(category,key) |
| |
| @dbus.service.method(DBUS_NAME, |
| in_signature='sy', out_signature='(sss)') |
| def getObjectFromByteId(self,category,key): |
| byte = int(key) |
| return self.doObjectLookup(category,byte) |
| |
| # Get the FRU area names defined in ID_LOOKUP table given a fru_id. |
| # If serval areas are defined for a fru_id, the areas are returned |
| # together as a string with each area name seperated with ','. |
| # If no fru area defined in ID_LOOKUP, an empty string will be returned. |
| @dbus.service.method(DBUS_NAME, |
| in_signature='y', out_signature='s') |
| def getFRUArea(self,fru_id): |
| ret_str = '' |
| fru_id = '_' + str(fru_id) |
| area_list = [area for area in System.ID_LOOKUP['FRU_STR'].keys() \ |
| if area.endswith(fru_id)] |
| for area in area_list: |
| ret_str = area + ',' + ret_str |
| # remove the last ',' |
| return ret_str[:-1] |
| |
| def start_process(self,name): |
| if (System.APPS[name]['start_process'] == True): |
| app = System.APPS[name] |
| process_name = self.bin_path+"/"+app['process_name'] |
| cmdline = [ ] |
| cmdline.append(process_name) |
| if (app.has_key('args')): |
| for a in app['args']: |
| cmdline.append(a) |
| try: |
| print "Starting process: "+" ".join(cmdline)+": "+name |
| if (app['monitor_process'] == True): |
| app['popen'] = subprocess.Popen(cmdline) |
| else: |
| subprocess.Popen(cmdline) |
| |
| except Exception as e: |
| ## TODO: error |
| print "ERROR: starting process: "+" ".join(cmdline) |
| |
| def heartbeat_check(self): |
| for name in System.APPS.keys(): |
| app = System.APPS[name] |
| if (app['start_process'] == True and app.has_key('popen')): |
| ## make sure process is still alive |
| p = app['popen'] |
| p.poll() |
| if (p.returncode != None): |
| print "Process for "+name+" appears to be dead" |
| self.start_process(name) |
| |
| return True |
| |
| def bus_handler(self, owned_name, old, new): |
| if obmc.dbuslib.bindings.is_unique(owned_name) or not new: |
| return |
| |
| if owned_name == DBUS_NAME: |
| return |
| |
| objs = obmc.dbuslib.introspection.find_dbus_interfaces( |
| self.bus, owned_name, '/', bool) |
| current_state = self.Get(DBUS_NAME,"current_state") |
| for o in objs.keys(): |
| if o in self.bus_name_lookup: |
| continue |
| self.bus_name_lookup[o] = owned_name |
| |
| if current_state not in System.EXIT_STATE_DEPEND: |
| continue |
| if o in System.EXIT_STATE_DEPEND[current_state]: |
| print "New object: "+o+" ("+owned_name+")" |
| System.EXIT_STATE_DEPEND[current_state][o] = 1 |
| |
| self.try_next_state() |
| |
| def NewObjectHandler(self, obj_path, iprops, bus_name = None): |
| current_state = self.Get(DBUS_NAME,"current_state") |
| if (self.bus_name_lookup.has_key(obj_path)): |
| if (self.bus_name_lookup[obj_path] == bus_name): |
| return |
| self.bus_name_lookup[obj_path] = bus_name |
| if current_state not in System.EXIT_STATE_DEPEND: |
| return |
| |
| if obj_path in System.EXIT_STATE_DEPEND[current_state]: |
| print "New object: "+obj_path+" ("+bus_name+")" |
| System.EXIT_STATE_DEPEND[current_state][obj_path] = 1 |
| ## check if all required objects are |
| # started to move to next state |
| self.try_next_state() |
| |
| @dbus.service.method(DBUS_NAME, |
| in_signature='s', out_signature='sis') |
| def gpioInit(self,name): |
| gpio_path = '' |
| gpio_num = -1 |
| r = ['',gpio_num,''] |
| if (System.GPIO_CONFIG.has_key(name) == False): |
| # TODO: Error handling |
| print "ERROR: "+name+" not found in GPIO config table" |
| else: |
| |
| gpio_num = -1 |
| gpio = System.GPIO_CONFIG[name] |
| if (System.GPIO_CONFIG[name].has_key('gpio_num')): |
| gpio_num = gpio['gpio_num'] |
| else: |
| if (System.GPIO_CONFIG[name].has_key('gpio_pin')): |
| gpio_num = System.convertGpio(gpio['gpio_pin']) |
| else: |
| print "ERROR: SystemManager - GPIO lookup failed for "+name |
| |
| if (gpio_num != -1): |
| r = [obmc.enums.GPIO_DEV, gpio_num, gpio['direction']] |
| return r |
| |
| |
| |
| if __name__ == '__main__': |
| dbus.mainloop.glib.DBusGMainLoop(set_as_default=True) |
| bus = get_dbus() |
| obj = SystemManager(bus,OBJ_NAME) |
| mainloop = gobject.MainLoop() |
| name = dbus.service.BusName(DBUS_NAME,bus) |
| |
| print "Running SystemManager" |
| mainloop.run() |
| |