# isort:skip_file import trezorui2 # Showing welcome screen as soon as possible # (display is also prepared on that occasion). # Remembering time to control how long we show it. trezorui2.draw_welcome_screen() import storage import storage.device from trezor import config, log, loop, ui, utils, wire from trezor.pin import ( allow_all_loader_messages, ignore_nonpin_loader_messages, show_pin_timeout, ) from trezor.ui.layouts.homescreen import Lockscreen from apps.common.request_pin import can_lock_device, verify_user_pin async def bootscreen() -> None: """Sequence of actions to be done on boot (after device is connected). We are starting with welcome_screen on the screen and want to show it for at least _WELCOME_SCREEN_MS before any other screen. Any non-PIN loaders are ignored during this function. Allowing all of them before returning. """ lockscreen = Lockscreen(label=storage.device.get_label(), bootscreen=True) ui.display.orientation(storage.device.get_rotation()) while True: try: if can_lock_device(): await lockscreen await verify_user_pin() storage.init_unlocked() allow_all_loader_messages() return except wire.PinCancelled: # verify_user_pin will convert a SdCardUnavailable (in case of sd salt) # to PinCancelled exception. # Ignore exception, retry loop. pass except BaseException as e: # other exceptions here are unexpected and should halt the device if __debug__: log.exception(__name__, e) utils.halt(e.__class__.__name__) # Ignoring all non-PIN messages in the boot-phase (turned off in `bootscreen()`). ignore_nonpin_loader_messages() config.init(show_pin_timeout) if __debug__ and not utils.EMULATOR: config.wipe() loop.schedule(bootscreen()) loop.run()