Source code for labgrid.strategy.ubootstrategy

import enum

import attr

from ..driver import UBootDriver, ShellDriver
from ..protocol import PowerProtocol
from ..factory import target_factory
from .common import Strategy, StrategyError

[docs]class Status(enum.Enum): unknown = 0 off = 1 uboot = 2 shell = 3
[docs]@target_factory.reg_driver @attr.s(eq=False) class UBootStrategy(Strategy): """UbootStrategy - Strategy to switch to uboot or shell""" bindings = { "power": PowerProtocol, "uboot": UBootDriver, "shell": ShellDriver, } status = attr.ib(default=Status.unknown)
[docs] def __attrs_post_init__(self): super().__attrs_post_init__()
[docs] def transition(self, status): if not isinstance(status, Status): status = Status[status] if status == Status.unknown: raise StrategyError("can not transition to {}".format(status)) elif status == self.status: return # nothing to do elif status == elif status == Status.uboot: self.transition( # pylint: disable=missing-kwoa # cycle power self.power.cycle() # interrupt uboot elif status == # tansition to uboot self.transition(Status.uboot) self.uboot.boot("") self.uboot.await_boot() else: raise StrategyError("no transition found from {} to {}".format(self.status, status)) self.status = status