| #!/usr/bin/python -u |
| |
| import sys |
| import subprocess |
| import gobject |
| import dbus |
| import dbus.service |
| import dbus.mainloop.glib |
| import os |
| import PropertyManager |
| import time |
| import json |
| import Openbmc |
| |
| if (len(sys.argv) < 2): |
| print "Usage: system_manager.py [system name]" |
| exit(1) |
| |
| System = __import__(sys.argv[1]) |
| import Openbmc |
| |
| 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(dbus.service.Object): |
| def __init__(self,bus,name): |
| dbus.service.Object.__init__(self,bus,name) |
| self.property_manager = PropertyManager.PropertyManager(bus,System.CACHE_PATH) |
| |
| ## Signal handlers |
| bus.add_signal_receiver(self.NewBusHandler, |
| dbus_interface = 'org.freedesktop.DBus', |
| signal_name = "NameOwnerChanged") |
| bus.add_signal_receiver(self.SystemStateHandler,signal_name = "GotoSystemState") |
| |
| self.current_state = "" |
| self.system_states = {} |
| self.bus_name_lookup = {} |
| self.bin_path = os.path.dirname(os.path.realpath(sys.argv[0])) |
| |
| for bus_name in System.SYSTEM_CONFIG.keys(): |
| sys_state = System.SYSTEM_CONFIG[bus_name]['system_state'] |
| if (self.system_states.has_key(sys_state) == False): |
| self.system_states[sys_state] = [] |
| self.system_states[sys_state].append(bus_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]) |
| print "SystemManager Init Done" |
| |
| |
| def SystemStateHandler(self,state_name): |
| print "Checking previous state started..." |
| i = 0 |
| started = self.check_state_started() |
| while(i<10 and started == False): |
| started = self.check_state_started() |
| i=i+1 |
| time.sleep(1) |
| |
| if (i == STATE_START_TIMEOUT): |
| print "ERROR: Timeout waiting for state to finish: "+self.current_state |
| return |
| |
| ## clearing object started flags |
| try: |
| for obj_path in System.EXIT_STATE_DEPEND[self.current_state]: |
| System.EXIT_STATE_DEPEND[self.current_state][obj_path] = 0 |
| except: |
| pass |
| |
| print "Running System State: "+state_name |
| if (self.system_states.has_key(state_name)): |
| for bus_name in self.system_states[state_name]: |
| self.start_process(bus_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] |
| obj = bus.get_object(cb['bus_name'],cb['obj_name']) |
| method = obj.get_dbus_method(cb['method_name'],cb['interface_name']) |
| method() |
| except: |
| pass |
| |
| self.current_state = state_name |
| |
| def gotoNextState(self): |
| s = 0 |
| for i in range(len(System.SYSTEM_STATES)): |
| if (System.SYSTEM_STATES[i] == self.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.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] == 'sensor'): |
| 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) |
| |
| def start_process(self,bus_name): |
| if (System.SYSTEM_CONFIG[bus_name]['start_process'] == True): |
| process_name = self.bin_path+"/"+System.SYSTEM_CONFIG[bus_name]['process_name'] |
| cmdline = [ ] |
| cmdline.append(process_name) |
| System.SYSTEM_CONFIG[bus_name]['popen'] = None |
| for instance in System.SYSTEM_CONFIG[bus_name]['instances']: |
| cmdline.append(instance['name']) |
| try: |
| print "Starting process: "+" ".join(cmdline)+": "+bus_name |
| System.SYSTEM_CONFIG[bus_name]['popen'] = subprocess.Popen(cmdline) |
| except Exception as e: |
| ## TODO: error |
| print "ERROR: starting process: "+" ".join(cmdline) |
| |
| def heartbeat_check(self): |
| for bus_name in System.SYSTEM_CONFIG.keys(): |
| if (System.SYSTEM_CONFIG[bus_name]['start_process'] == True and |
| System.SYSTEM_CONFIG[bus_name].has_key('popen') and |
| System.SYSTEM_CONFIG[bus_name]['monitor_process'] == True): |
| ## make sure process is still alive |
| p = System.SYSTEM_CONFIG[bus_name]['popen'] |
| p.poll() |
| if (p.returncode != None): |
| print "Process for "+bus_name+" appears to be dead" |
| self.start_process(bus_name) |
| |
| return True |
| |
| def check_state_started(self): |
| r = True |
| if (self.current_state == ""): |
| return True |
| if (self.system_states.has_key(self.current_state)): |
| for bus_name in self.system_states[self.current_state]: |
| if (System.SYSTEM_CONFIG[bus_name].has_key('popen') == False and |
| System.SYSTEM_CONFIG[bus_name]['start_process'] == True): |
| r = False |
| break; |
| return r |
| |
| def NewBusHandler(self, bus_name, a, b): |
| if (len(b) > 0 and bus_name.find(Openbmc.BUS_PREFIX) == 0): |
| objects = {} |
| try: |
| Openbmc.get_objs(bus,bus_name,"",objects) |
| for instance_name in objects.keys(): |
| obj_path = objects[instance_name]['PATH'] |
| #obj = bus.get_object("org.openbmc.managers.Property", |
| # "/org/openbmc/managers/Property") |
| #intf = dbus.Interface(obj,"org.openbmc.managers.Property") |
| #intf.loadFromCache(bus_name,obj_path) |
| self.bus_name_lookup[obj_path] = bus_name |
| if (System.EXIT_STATE_DEPEND[self.current_state].has_key(obj_path) == True): |
| System.EXIT_STATE_DEPEND[self.current_state][obj_path] = 1 |
| |
| except Exception as e: |
| pass |
| |
| if (System.SYSTEM_CONFIG.has_key(bus_name)): |
| for instance_name in objects.keys(): |
| obj_path = objects[instance_name]['PATH'] |
| for instance in System.SYSTEM_CONFIG[bus_name]['instances']: |
| if (instance.has_key('properties') and instance['name'] == instance_name): |
| props = instance['properties'] |
| print "Load Properties: "+obj_path |
| self.property_manager.loadProperties(bus_name,obj_path,props) |
| ## If object has an init method, call it |
| for init_intf in objects[instance_name]['INIT']: |
| obj = bus.get_object(bus_name,obj_path) |
| intf = dbus.Interface(obj,init_intf) |
| print "Calling init method: " +obj_path+" : "+init_intf |
| intf.init() |
| |
| ## check if all objects are started to move to next state |
| try: |
| state = 1 |
| for obj_path in System.EXIT_STATE_DEPEND[self.current_state]: |
| if (System.EXIT_STATE_DEPEND[self.current_state][obj_path] == 0): |
| state = 0 |
| ## all required objects have started so go to next state |
| if (state == 1): |
| self.gotoNextState() |
| except: |
| pass |
| |
| |
| |
| @dbus.service.method(DBUS_NAME, |
| in_signature='s', out_signature='sis') |
| def gpioInit(self,name): |
| gpio_path = '' |
| gpio_num = 0 |
| if (System.GPIO_CONFIG.has_key(name) == False): |
| # TODO: Error handling |
| print "ERROR: "+name+" not found in GPIO config table" |
| return ['',0,''] |
| else: |
| gpio_num = System.GPIO_CONFIG[name]['gpio_num'] |
| |
| return [Openbmc.GPIO_DEV, gpio_num, System.GPIO_CONFIG[name]['direction']] |
| |
| |
| |
| if __name__ == '__main__': |
| dbus.mainloop.glib.DBusGMainLoop(set_as_default=True) |
| bus = Openbmc.getDBus() |
| name = dbus.service.BusName(DBUS_NAME,bus) |
| obj = SystemManager(bus,OBJ_NAME) |
| mainloop = gobject.MainLoop() |
| |
| print "Running SystemManager" |
| mainloop.run() |
| |