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#!/usr/bin/python3
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright 2020 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
import binascii
import struct
import sys
from xml.parsers import expat
class Parser(object):
def __init__(self):
self.__parser = expat.ParserCreate()
self.__parser.StartElementHandler = self.__startElement
self.__parser.EndElementHandler = self.__endElement
self.__parser.CharacterDataHandler = self.__characterData
self.__in_firmware = False
self.__attrs = {}
self.__data = ''
def parse(self, filename):
f = open(filename, 'rb')
self.__parser.ParseFile(f)
def data(self):
return self.__data
def __getitem__(self, name):
return self.__attrs[name]
def __startElement(self, name, attrs):
if name == 'dump':
self.__in_firmware = True
self.__attrs = attrs
def __endElement(self, name):
if name == 'dump':
self.__in_firmware = False
def __characterData(self, data):
if self.__in_firmware:
self.__data += data
def main(argv):
if len(argv) != 3:
print(f'Usage: {argv[0]} input.xml output.bin')
return 1
parser = Parser()
parser.parse(argv[1])
fw = parser.data()
fw = ''.join([c for c in fw if c in '0123456789abcdefABCDEF'])
pll_init_size = int(parser['pll_init_size'])
crc = int(parser['crc'], 16)
out = open(argv[2], 'wb')
out.write(struct.pack('<HH', pll_init_size, crc))
out.write(binascii.a2b_hex(fw))
if __name__ == '__main__':
sys.exit(main(sys.argv))
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