#!/usr/bin/python -u import sys import uuid import gobject import dbus import dbus.service import dbus.mainloop.glib from obmc.dbuslib.bindings import get_dbus, DbusProperties, DbusObjectManager DBUS_NAME = 'org.openbmc.control.Chassis' OBJ_NAME = '/org/openbmc/control/chassis0' CONTROL_INTF = 'org.openbmc.Control' MACHINE_ID = '/etc/machine-id' POWER_OFF = 0 POWER_ON = 1 BOOTED = 100 class ChassisControlObject(DbusProperties,DbusObjectManager): def getUuid(self): uuid = ""; try: with open(MACHINE_ID) as f: data = f.readline().rstrip('\n') if (len(data) == 32): uuid = data else: print "ERROR: UUID is not formatted correctly: "+data except: print "ERROR: Unable to open uuid file: "+MACHINE_ID return uuid def __init__(self,bus,name): self.dbus_objects = { } DbusProperties.__init__(self) DbusObjectManager.__init__(self) dbus.service.Object.__init__(self,bus,name) ## load utilized objects self.dbus_objects = { 'power_control' : { 'bus_name' : 'org.openbmc.control.Power', 'object_name' : '/org/openbmc/control/power0', 'interface_name' : 'org.openbmc.control.Power' }, 'identify_led' : { 'bus_name' : 'org.openbmc.control.led', 'object_name' : '/org/openbmc/control/led/identify', 'interface_name' : 'org.openbmc.Led' }, 'watchdog' : { 'bus_name' : 'org.openbmc.watchdog.Host', 'object_name' : '/org/openbmc/watchdog/host0', 'interface_name' : 'org.openbmc.Watchdog' }, 'host_services' : { 'bus_name' : 'org.openbmc.HostServices', 'object_name' : '/org/openbmc/HostServices', 'interface_name' : 'org.openbmc.HostServices' }, 'settings' : { 'bus_name' : 'org.openbmc.settings.Host', 'object_name' : '/org/openbmc/settings/host0', 'interface_name' : 'org.freedesktop.DBus.Properties' }, } #uuid self.Set(DBUS_NAME,"uuid",self.getUuid()) self.Set(DBUS_NAME,"reboot",0) bus.add_signal_receiver(self.power_button_signal_handler, dbus_interface = "org.openbmc.Button", signal_name = "Released", path="/org/openbmc/buttons/power0" ) bus.add_signal_receiver(self.reset_button_signal_handler, dbus_interface = "org.openbmc.Button", signal_name = "PressedLong", path="/org/openbmc/buttons/power0" ) bus.add_signal_receiver(self.softreset_button_signal_handler, dbus_interface = "org.openbmc.Button", signal_name = "Released", path="/org/openbmc/buttons/reset0" ) bus.add_signal_receiver(self.host_watchdog_signal_handler, dbus_interface = "org.openbmc.Watchdog", signal_name = "WatchdogError") bus.add_signal_receiver(self.emergency_shutdown_signal_handler, dbus_interface = "org.openbmc.SensorThresholds", signal_name = "Emergency") bus.add_signal_receiver(self.SystemStateHandler,signal_name = "GotoSystemState") self.InterfacesAdded(name,self.properties) def getInterface(self,name): o = self.dbus_objects[name] obj = bus.get_object(o['bus_name'],o['object_name'],introspect=False) return dbus.Interface(obj,o['interface_name']) @dbus.service.method(DBUS_NAME, in_signature='', out_signature='') def setIdentify(self): print "Turn on identify" intf = self.getInterface('identify_led') intf.setOn() return None @dbus.service.method(DBUS_NAME, in_signature='', out_signature='') def clearIdentify(self): print "Turn on identify" intf = self.getInterface('identify_led') intf.setOff() return None @dbus.service.method(DBUS_NAME, in_signature='', out_signature='') def powerOn(self): print "Turn on power and boot" self.Set(DBUS_NAME,"reboot",0) if (self.getPowerState()==0): intf = self.getInterface('power_control') intf.setPowerState(POWER_ON) intfwatchdog = self.getInterface('watchdog') #Start watchdog with 30s timeout per the OpenPower Host IPMI Spec #Once the host starts booting, it'll reset and refresh the timer intfwatchdog.set(30000) intfwatchdog.start() return None @dbus.service.method(DBUS_NAME, in_signature='', out_signature='') def powerOff(self): print "Turn off power" intfwatchdog = self.getInterface('watchdog') intfwatchdog.stop() intf = self.getInterface('power_control') intf.setPowerState(POWER_OFF) return None @dbus.service.method(DBUS_NAME, in_signature='', out_signature='') def softPowerOff(self): print "Soft off power" intf = self.getInterface('host_services') ## host services will call power off when ready intf.SoftPowerOff() return None @dbus.service.method(DBUS_NAME, in_signature='', out_signature='') def reboot(self): print "Rebooting" if self.getPowerState() == POWER_OFF: self.powerOn(); else: self.Set(DBUS_NAME,"reboot",1) self.powerOff() return None @dbus.service.method(DBUS_NAME, in_signature='', out_signature='') def softReboot(self): print "Soft Rebooting" if self.getPowerState() == POWER_OFF: self.powerOn(); else: self.Set(DBUS_NAME,"reboot",1) self.softPowerOff() return None @dbus.service.method(DBUS_NAME, in_signature='', out_signature='i') def getPowerState(self): intf = self.getInterface('power_control') return intf.getPowerState() ## Signal handler def SystemStateHandler(self,state_name): if (state_name == "HOST_POWERED_OFF" or state_name == "HOST_POWERED_ON"): intf = self.getInterface('settings') intf.Set("org.openbmc.settings.Host","system_state",state_name) if (state_name == "HOST_POWERED_OFF" and self.Get(DBUS_NAME,"reboot")==1): self.powerOn() def power_button_signal_handler(self): # toggle power state = self.getPowerState() if state == POWER_OFF: self.powerOn() elif state == POWER_ON: self.powerOff(); def reset_button_signal_handler(self): self.reboot(); def softreset_button_signal_handler(self): self.softReboot(); def host_watchdog_signal_handler(self): print "Watchdog Error, Hard Rebooting" self.Set(DBUS_NAME,"reboot",1) self.powerOff() def emergency_shutdown_signal_handler(self): print "Emergency Shutdown!" self.powerOff() if __name__ == '__main__': dbus.mainloop.glib.DBusGMainLoop(set_as_default=True) bus = get_dbus() name = dbus.service.BusName(DBUS_NAME, bus) obj = ChassisControlObject(bus, OBJ_NAME) mainloop = gobject.MainLoop() print "Running ChassisControlService" mainloop.run()