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#!/usr/bin/python -u
import sys
import subprocess
import gobject
import dbus
import dbus.service
import dbus.mainloop.glib
import os
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
import obmc.mapper.utils
DBUS_NAME = 'org.openbmc.managers.System'
OBJ_NAME = '/org/openbmc/managers/System'
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.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.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 sys_state not in self.system_states:
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)
print "SystemManager Init Done"
def SystemStateHandler(self, state_name):
print "Running System State: "+state_name
if state_name in self.system_states:
for name in self.system_states[state_name]:
self.start_process(name)
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)
waitlist = System.EXIT_STATE_DEPEND.get(state_name, {}).keys()
if waitlist:
self.waiter = obmc.mapper.utils.Wait(
self.bus, waitlist,
callback=self.gotoNextState)
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):
obj_path = ""
intf_name = INTF_ITEM
try:
obj_path = System.ID_LOOKUP[category][key]
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 [obj_path, intf_name]
@dbus.service.method(DBUS_NAME, in_signature='ss', out_signature='(ss)')
def getObjectFromId(self, category, key):
return self.doObjectLookup(category, key)
@dbus.service.method(DBUS_NAME, in_signature='sy', out_signature='(ss)')
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']:
app = System.APPS[name]
process_name = self.bin_path+"/"+app['process_name']
cmdline = []
cmdline.append(process_name)
if 'args' in app:
for a in app['args']:
cmdline.append(a)
try:
print "Starting process: "+" ".join(cmdline)+": "+name
if app['monitor_process']:
app['popen'] = subprocess.Popen(cmdline)
else:
subprocess.Popen(cmdline)
except Exception as e:
## TODO: error
print "ERROR: starting process: "+" ".join(cmdline)
def NewObjectHandler(self, obj_path, iprops, bus_name=None):
current_state = self.Get(DBUS_NAME, "current_state")
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+")"
@dbus.service.method(DBUS_NAME, in_signature='s', out_signature='sis')
def gpioInit(self, name):
gpio_path = ''
gpio_num = -1
r = ['', gpio_num, '']
if name not in System.GPIO_CONFIG:
# TODO: Error handling
print "ERROR: "+name+" not found in GPIO config table"
else:
gpio_num = -1
gpio = System.GPIO_CONFIG[name]
if 'gpio_num' in System.GPIO_CONFIG[name]:
gpio_num = gpio['gpio_num']
else:
if 'gpio_pin' in System.GPIO_CONFIG[name]:
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()
obj.unmask_signals()
name = dbus.service.BusName(DBUS_NAME, bus)
print "Running SystemManager"
mainloop.run()
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