blob: 575304bf9f414dd58c03a7ae40e3f83537beb3e1 [file] [log] [blame]
#!/usr/bin/env python
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.mapper.utils
import obmc.inventory
import obmc.system
DBUS_NAME = 'org.openbmc.managers.System'
OBJ_NAME = '/org/openbmc/managers/System'
INTF_SENSOR = 'org.openbmc.SensorValue'
INTF_ITEM = 'org.openbmc.InventoryItem'
SYS_STATE_FILE = '/var/lib/obmc/last-system-state'
POWER_OFF = "0"
class SystemManager(DbusProperties, DbusObjectManager):
def __init__(self, bus, obj_name):
super(SystemManager, self).__init__(
conn=bus,
object_path=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")
bus.add_signal_receiver(
self.chassisPowerStateHandler,
dbus_interface="org.freedesktop.DBus.Properties",
signal_name="PropertiesChanged",
path="/org/openbmc/control/power0")
self.Set(DBUS_NAME, "current_state", "")
self.Set(DBUS_NAME, "system_last_state", POWER_OFF)
self.import_system_state_from_disk()
# 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>", obmc.inventory.INVENTORY_ROOT)
System.ID_LOOKUP[category][key] = new_val
self.SystemStateHandler(System.SYSTEM_STATES[0])
print "SystemManager Init Done"
def chassisPowerStateHandler(self, interface_name, changed_properties,
invalidated_properties):
value = changed_properties.get('state')
if value is not None:
self.write_to_disk_and_update(str(value))
def SystemStateHandler(self, state_name):
print "Running System State: "+state_name
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)
def import_system_state_from_disk(self):
state = str(POWER_OFF)
try:
with open(SYS_STATE_FILE, 'r+') as f:
state = f.readline().rstrip('\n')
except IOError:
pass
self.Set(DBUS_NAME, "system_last_state", state)
return state
def write_to_disk_and_update(self, state):
try:
with open(SYS_STATE_FILE, 'w+') as f:
f.write(str(state))
self.Set(DBUS_NAME, "system_last_state", state)
except IOError:
pass
@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 separated 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 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: Better error handling
msg = "ERROR: "+name+" not found in GPIO config table"
print msg
raise Exception(msg)
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 = obmc.system.convertGpio(gpio['gpio_pin'])
else:
msg = "ERROR: SystemManager - GPIO lookup failed for "+name
print msg
raise Exception(msg)
if (gpio_num != -1):
r = [obmc.enums.GPIO_DEV, gpio_num, gpio['direction']]
return r
@dbus.service.method(DBUS_NAME, in_signature='',
out_signature='ssa(sb)a(sb)a(sbb)ssssa(sb)')
def getGpioConfiguration(self):
power_config = System.GPIO_CONFIGS.get('power_config', {})
power_good_in = power_config.get('power_good_in', '')
latch_out = power_config.get('latch_out', '')
power_up_outs = power_config.get('power_up_outs', [])
reset_outs = power_config.get('reset_outs', [])
pci_reset_outs = power_config.get('pci_reset_outs', [])
hostctl_config = System.GPIO_CONFIGS.get('hostctl_config', {})
fsi_data = hostctl_config.get('fsi_data', '')
fsi_clk = hostctl_config.get('fsi_clk', '')
fsi_enable = hostctl_config.get('fsi_enable', '')
cronus_sel = hostctl_config.get('cronus_sel', '')
optionals = hostctl_config.get('optionals', [])
r = [power_good_in, latch_out, power_up_outs, reset_outs, pci_reset_outs,\
fsi_data, fsi_clk, fsi_enable, cronus_sel, optionals]
print "Power GPIO config: " + str(r)
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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