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# Copyright (c) 2018 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from UM.Logger import Logger
from cura.CuraApplication import CuraApplication
from cura.PrinterOutput.FirmwareUpdater import FirmwareUpdater, FirmwareUpdateState
from .avr_isp import stk500v2, intelHex
from serial import SerialException
from time import sleep
MYPY = False
if MYPY:
from cura.PrinterOutput.PrinterOutputDevice import PrinterOutputDevice
class AvrFirmwareUpdater(FirmwareUpdater):
def __init__(self, output_device: "PrinterOutputDevice") -> None:
super().__init__(output_device)
def _updateFirmware(self) -> None:
try:
hex_file = intelHex.readHex(self._firmware_file)
assert len(hex_file) > 0
except (FileNotFoundError, AssertionError):
Logger.log("e", "Unable to read provided hex file. Could not update firmware.")
self._setFirmwareUpdateState(FirmwareUpdateState.firmware_not_found_error)
return
programmer = stk500v2.Stk500v2()
programmer.progress_callback = self._onFirmwareProgress
# Ensure that other connections are closed.
if self._output_device.isConnected():
self._output_device.close()
try:
programmer.connect(self._output_device._serial_port)
except:
programmer.close()
Logger.logException("e", "Failed to update firmware")
self._setFirmwareUpdateState(FirmwareUpdateState.communication_error)
return
# Give programmer some time to connect. Might need more in some cases, but this worked in all tested cases.
sleep(1)
if not programmer.isConnected():
Logger.log("e", "Unable to connect with serial. Could not update firmware")
self._setFirmwareUpdateState(FirmwareUpdateState.communication_error)
try:
programmer.programChip(hex_file)
except SerialException as e:
Logger.log("e", "A serial port exception occurred during firmware update: %s" % e)
self._setFirmwareUpdateState(FirmwareUpdateState.io_error)
return
except Exception as e:
Logger.log("e", "An unknown exception occurred during firmware update: %s" % e)
self._setFirmwareUpdateState(FirmwareUpdateState.unknown_error)
return
programmer.close()
# Try to re-connect with the machine again, which must be done on the Qt thread, so we use call later.
CuraApplication.getInstance().callLater(self._output_device.connect)
self._cleanupAfterUpdate()
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