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#!/usr/bin/env python
# Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>, Sebastian Kaim <sebb@sebb767.de>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from __future__ import print_function
import os
import sys
import time
import usb
def checkForKeyboardInNormalMode():
"""Returns a device if a ps2avrGB device in normal made (that is in keyboard mode) or None if it is not found."""
return usb.core.find(idVendor=0x20A0, idProduct=0x422D)
def checkForKeyboardInBootloaderMode():
"""Returns True if a ps2avrGB device in bootloader (flashable) mode is found and False otherwise."""
return (usb.core.find(idVendor=0x16c0, idProduct=0x05df) is not None)
def flashKeyboard(firmware_file):
"""Calls bootloadHID to flash the given file to the device."""
print('Flashing firmware to device ...')
if os.system('bootloadHID -r "%s"' % firmware_file) == 0:
print('\nDone!')
else:
print('\nbootloadHID returned an error.')
def printDeviceInfo(dev):
"""Prints all infos for a given USB device"""
print('Device Information:')
print(' idVendor: %d (0x%04x)' % (dev.idVendor, dev.idVendor))
print(' idProduct: %d (0x%04x)' % (dev.idProduct, dev.idProduct))
print('Manufacturer: %s' % (dev.iManufacturer))
print('Serial: %s' % (dev.iSerialNumber))
print('Product: %s' % (dev.iProduct), end='\n\n')
def sendDeviceToBootloaderMode(dev):
"""Tries to send a given ps2avrGB keyboard to bootloader mode to allow flashing."""
try:
dev.set_configuration()
request_type = usb.util.build_request_type(
usb.util.CTRL_OUT,
usb.util.CTRL_TYPE_CLASS,
usb.util.CTRL_RECIPIENT_DEVICE)
USBRQ_HID_SET_REPORT = 0x09
HID_REPORT_OPTION = 0x0301
dev.ctrl_transfer(request_type, USBRQ_HID_SET_REPORT, HID_REPORT_OPTION, 0, [0, 0, 0xFF] + [0] * 5)
except usb.core.USBError:
# for some reason I keep getting USBError, but it works!
pass
if len(sys.argv) < 2:
print('Usage: %s <firmware.hex>' % sys.argv[0])
sys.exit(1)
kb = checkForKeyboardInNormalMode()
if kb is not None:
print('Found a keyboad in normal mode. Attempting to send it to bootloader mode ...', end='')
sendDeviceToBootloaderMode(kb)
print(' done.')
print("Hint: If your keyboard can't be set to bootloader mode automatically, plug it in while pressing left control to do so manually.")
attempts = 12 # 60 seconds
found = False
for attempt in range(1, attempts + 1):
print("Searching for keyboard in bootloader mode (%i/%i) ... " % (attempt, attempts), end='')
if checkForKeyboardInBootloaderMode():
print('Found', end='\n\n')
flashKeyboard(sys.argv[1])
found = True
break
else:
print('Nothing.', end='')
if attempt != attempts: # no need to wait on the last attempt
print(' Sleeping 5 seconds.', end='')
time.sleep(5)
# print a newline
print()
if not found:
print("Couldn't find a flashable keyboard. Aborting.")
sys.exit(2)
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