def update_panda():
panda = None
panda_dfu = None
cloudlog.info("Connecting to panda")
while True:
# break on normal mode Panda
panda_list = Panda.list()
if len(panda_list) > 0:
cloudlog.info("Panda found, connecting")
panda = Panda(panda_list[0])
break
# flash on DFU mode Panda
panda_dfu = PandaDFU.list()
if len(panda_dfu) > 0:
cloudlog.info("Panda in DFU mode found, flashing recovery")
panda_dfu = PandaDFU(panda_dfu[0])
panda_dfu.recover()
time.sleep(1)
fw_fn = get_firmware_fn()
fw_signature = get_expected_signature(fw_fn)
try:
serial = panda.get_serial()[0].decode("utf-8")
except Exception:
serial = None
panda_version = "bootstub" if panda.bootstub else panda.get_version()
panda_signature = b"" if panda.bootstub else panda.get_signature()
cloudlog.warning(
"Panda %s connected, version: %s, signature %s, expected %s" % (
serial,
panda_version,
panda_signature.hex(),
fw_signature.hex(),
))
if panda.bootstub or panda_signature != fw_signature:
cloudlog.info("Panda firmware out of date, update required")
panda.flash(fw_fn)
cloudlog.info("Done flashing")
if panda.bootstub:
bootstub_version = panda.get_version()
cloudlog.info(
f"Flashed firmware not booting, flashing development bootloader. Bootstub version: {bootstub_version}"
)
panda.recover()
cloudlog.info("Done flashing bootloader")
if panda.bootstub:
cloudlog.info("Panda still not booting, exiting")
raise AssertionError
panda_signature = panda.get_signature()
if panda_signature != fw_signature:
cloudlog.info("Version mismatch after flashing, exiting")
raise AssertionError
