def get_expected_signature(panda : Panda) -> bytes:
fn = DEFAULT_H7_FW_FN if (panda.get_mcu_type() == MCU_TYPE_H7) else DEFAULT_FW_FN
try:
return Panda.get_signature_from_firmware(fn)
except Exception:
cloudlog.exception("Error computing expected signature")
return b""
def flash_panda(panda_serial: str) -> Panda:
panda = Panda(panda_serial)
fw_signature = get_expected_signature(panda)
panda_version = "bootstub" if panda.bootstub else panda.get_version()
panda_signature = b"" if panda.bootstub else panda.get_signature()
cloudlog.warning(
f"Panda {panda_serial} connected, version: {panda_version}, signature {panda_signature.hex()[:16]}, expected {fw_signature.hex()[:16]}"
)
if panda.bootstub or panda_signature != fw_signature:
cloudlog.info("Panda firmware out of date, update required")
panda.flash()
cloudlog.info("Done flashing")
if panda.bootstub:
spinner = Spinner()
spinner.update("Restoring panda")
panda.recover()
spinner.close()
if panda.bootstub:
spinner = Spinner()
spinner.update("Restoring panda")
try:
if panda.get_mcu_type() == MCU_TYPE_H7:
subprocess.run(
"cd /data/openpilot/panda/board; ./recover_h7.sh",
capture_output=True,
shell=True)
else:
subprocess.run("cd /data/openpilot/panda/board; ./recover.sh",
capture_output=True,
shell=True)
panda.reset()
panda.reconnect()
finally:
spinner.close()
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
return panda
