pysystemmgr/system_manager.py

#!/usr/bin/env python

# TODO: openbmc/openbmc#2994 remove python 2 support
try:  # python 2
    import gobject
except ImportError:  # python 3
    from gi.repository import GObject as gobject
import dbus
import dbus.service
import dbus.mainloop.glib
import os
from obmc.dbuslib.bindings import DbusProperties, DbusObjectManager, get_dbus
import obmc.enums
import obmc_system_config as System
import obmc.inventory
import obmc.system

DBUS_NAME = "org.openbmc.managers.System"
OBJ_NAME = "/org/openbmc/managers/System"
INTF_SENSOR = "org.openbmc.SensorValue"


class SystemManager(DbusProperties, DbusObjectManager):
    def __init__(self, bus, obj_name):
        super(SystemManager, self).__init__(conn=bus, object_path=obj_name)
        self.bus = bus

        # 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

        print("SystemManager Init Done")

    def doObjectLookup(self, category, key):
        obj_path = ""
        intf_name = INTF_SENSOR
        try:
            obj_path = System.ID_LOOKUP[category][key]
            parts = obj_path.split("/")
            if parts[3] != "sensors":
                print("ERROR SystemManager: SENSOR only supported type")
                intf_name = ""
        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)

    @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