def transition(self, status, *, step):
if not isinstance(status, Status):
status = Status[status]
if status == Status.unknown:
raise StrategyError("can not transition to {}".format(status))
elif status == self.status:
step.skip("nothing to do")
return # nothing to do
elif status == Status.barebox:
self.target.activate(self.power)
self.target.activate(self.sdmux)
# power off
self.power.off()
# configure sd-mux
self.sdmux.set_mode('dut')
# cycle power
self.power.on()
# interrupt barebox
self.target.activate(self.barebox)
elif status == Status.shell:
# tansition to barebox
self.transition(Status.barebox)
self.barebox.boot("")
self.barebox.await_boot()
self.target.activate(self.shell)
else:
raise StrategyError("no transition found from {} to {}".format(
self.status, status))
self.status = status
def transition(self, status, *, step):
if not isinstance(status, Status):
status = Status[status]
if status == Status.unknown:
raise StrategyError("can not transition to {}".format(status))
elif status == self.status:
step.skip("nothing to do")
return # nothing to do
elif status == Status.flashed_xload:
self.target.activate(self.power)
self.power.cycle()
self.target.activate(self.quartushps)
# flash bootloader xload image to 0x0
self.quartushps.flash(self.image_xload, 0x0)
elif status == Status.flashed:
self.transition(Status.flashed_xload)
# flash bootloader image to 0x40000
self.quartushps.flash(self.image, 0x40000)
self.power.cycle()
# activate serial in order to make 'labgrid-client -s $STATE con' work
self.target.activate(self.serial)
else:
raise StrategyError(
"no transition found from {} to {}".
format(self.status, status)
)
self.status = status
def transition(self, new_status, *, step):
if not isinstance(new_status, Status):
new_status = Status[new_status]
if new_status == Status.unknown:
raise StrategyError("can not transition to {}".format(new_status))
elif self.status == new_status:
step.skip("nothing to do")
return
elif self.status == Status.unknown:
# unknown state after initialization, cycle power
self.target.activate(self.power)
self.power.cycle()
# we can then let the according driver do the rest to get us into a barebox or shell:
if new_status == Status.barebox:
self.target.activate(self.barebox)
elif new_status == Status.shell:
# (this assumes that barebox will autoboot to the shell after a timeout)
self.target.activate(self.shell)
elif self.status == Status.barebox and new_status == Status.shell:
# in barebox: boot the default target and hope it will get us to a shell :->
self.barebox.boot("")
self.barebox.await_boot()
self.target.activate(self.shell)
elif self.status == Status.shell and new_status == Status.barebox:
# in shell: we can simply reboot to get a barebox
# make sure run() reads the shell prompt and returns
self.shell.run("(sleep 1;reboot)&")
self.target.activate(self.barebox)
else:
raise StrategyError(
"no transition found from {} to {}".
format(self.status, new_status)
)
self.status = new_status
