| #!/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() |
| |
| # vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4 |