1#!/usr/bin/env python
2
3import gobject
4import dbus
5import dbus.service
6import dbus.mainloop.glib
7import os
8import obmc.dbuslib.propertycacher as PropertyCacher
9from obmc.dbuslib.bindings import DbusProperties, DbusObjectManager, get_dbus
10import obmc.enums
11import obmc_system_config as System
12import obmc.mapper.utils
13import obmc.inventory
14
15DBUS_NAME = 'org.openbmc.managers.System'
16OBJ_NAME = '/org/openbmc/managers/System'
17INTF_SENSOR = 'org.openbmc.SensorValue'
18INTF_ITEM = 'org.openbmc.InventoryItem'
19
20
21class SystemManager(DbusProperties, DbusObjectManager):
22    def __init__(self, bus, obj_name):
23        super(SystemManager, self).__init__(
24            conn=bus,
25            object_path=obj_name)
26        self.bus = bus
27
28        bus.add_signal_receiver(
29            self.NewObjectHandler,
30            signal_name="InterfacesAdded", sender_keyword='bus_name')
31        bus.add_signal_receiver(
32            self.SystemStateHandler, signal_name="GotoSystemState")
33
34        self.Set(DBUS_NAME, "current_state", "")
35
36        ## replace symbolic path in ID_LOOKUP
37        for category in System.ID_LOOKUP:
38            for key in System.ID_LOOKUP[category]:
39                val = System.ID_LOOKUP[category][key]
40                new_val = val.replace(
41                    "<inventory_root>", obmc.inventory.INVENTORY_ROOT)
42                System.ID_LOOKUP[category][key] = new_val
43
44        self.SystemStateHandler(System.SYSTEM_STATES[0])
45
46        print "SystemManager Init Done"
47
48    def SystemStateHandler(self, state_name):
49        print "Running System State: "+state_name
50
51        self.Set(DBUS_NAME, "current_state", state_name)
52
53        waitlist = System.EXIT_STATE_DEPEND.get(state_name, {}).keys()
54        if waitlist:
55            self.waiter = obmc.mapper.utils.Wait(
56                self.bus, waitlist,
57                callback=self.gotoNextState)
58
59    def gotoNextState(self):
60        s = 0
61        current_state = self.Get(DBUS_NAME, "current_state")
62        for i in range(len(System.SYSTEM_STATES)):
63            if (System.SYSTEM_STATES[i] == current_state):
64                s = i+1
65
66        if (s == len(System.SYSTEM_STATES)):
67            print "ERROR SystemManager: No more system states"
68        else:
69            new_state_name = System.SYSTEM_STATES[s]
70            print "SystemManager Goto System State: "+new_state_name
71            self.SystemStateHandler(new_state_name)
72
73    @dbus.service.method(DBUS_NAME, in_signature='', out_signature='s')
74    def getSystemState(self):
75        return self.Get(DBUS_NAME, "current_state")
76
77    def doObjectLookup(self, category, key):
78        obj_path = ""
79        intf_name = INTF_ITEM
80        try:
81            obj_path = System.ID_LOOKUP[category][key]
82            parts = obj_path.split('/')
83            if (parts[3] == 'sensors'):
84                intf_name = INTF_SENSOR
85        except Exception as e:
86            print "ERROR SystemManager: "+str(e)+" not found in lookup"
87
88        return [obj_path, intf_name]
89
90    @dbus.service.method(DBUS_NAME, in_signature='ss', out_signature='(ss)')
91    def getObjectFromId(self, category, key):
92        return self.doObjectLookup(category, key)
93
94    @dbus.service.method(DBUS_NAME, in_signature='sy', out_signature='(ss)')
95    def getObjectFromByteId(self, category, key):
96        byte = int(key)
97        return self.doObjectLookup(category, byte)
98
99    # Get the FRU area names defined in ID_LOOKUP table given a fru_id.
100    # If serval areas are defined for a fru_id, the areas are returned
101    # together as a string with each area name seperated with ','.
102    # If no fru area defined in ID_LOOKUP, an empty string will be returned.
103    @dbus.service.method(DBUS_NAME, in_signature='y', out_signature='s')
104    def getFRUArea(self, fru_id):
105        ret_str = ''
106        fru_id = '_' + str(fru_id)
107        area_list = [
108            area for area in System.ID_LOOKUP['FRU_STR'].keys()
109            if area.endswith(fru_id)]
110        for area in area_list:
111            ret_str = area + ',' + ret_str
112        # remove the last ','
113        return ret_str[:-1]
114
115    def NewObjectHandler(self, obj_path, iprops, bus_name=None):
116        current_state = self.Get(DBUS_NAME, "current_state")
117        if current_state not in System.EXIT_STATE_DEPEND:
118            return
119
120        if obj_path in System.EXIT_STATE_DEPEND[current_state]:
121            print "New object: "+obj_path+" ("+bus_name+")"
122
123    @dbus.service.method(DBUS_NAME, in_signature='s', out_signature='sis')
124    def gpioInit(self, name):
125        gpio_path = ''
126        gpio_num = -1
127        r = ['', gpio_num, '']
128        if name not in System.GPIO_CONFIG:
129            # TODO: Error handling
130            print "ERROR: "+name+" not found in GPIO config table"
131        else:
132
133            gpio_num = -1
134            gpio = System.GPIO_CONFIG[name]
135            if 'gpio_num' in System.GPIO_CONFIG[name]:
136                gpio_num = gpio['gpio_num']
137            else:
138                if 'gpio_pin' in System.GPIO_CONFIG[name]:
139                    gpio_num = System.convertGpio(gpio['gpio_pin'])
140                else:
141                    print "ERROR: SystemManager - GPIO lookup failed for "+name
142
143            if (gpio_num != -1):
144                r = [obmc.enums.GPIO_DEV, gpio_num, gpio['direction']]
145        return r
146
147
148if __name__ == '__main__':
149    dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
150    bus = get_dbus()
151    obj = SystemManager(bus, OBJ_NAME)
152    mainloop = gobject.MainLoop()
153    obj.unmask_signals()
154    name = dbus.service.BusName(DBUS_NAME, bus)
155
156    print "Running SystemManager"
157    mainloop.run()
158
159# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
160