diff --git a/scripts/sercomm-pid.py b/scripts/sercomm-pid.py new file mode 100755 index 0000000000..b89977a5b9 --- /dev/null +++ b/ scripts/sercomm-pid.py@@ -0,0 +1,102 @@ +#!/usr/bin/env python3 +""" +# SPDX-License-Identifier: GPL-2.0-or-later +# +# sercomm-pid.py: Creates Sercomm device PID +# +# Copyright © 2022 Mikhail Zhilkin +""" + +import argparse +import binascii +import struct + +PID_SIZE = 0x70 +PADDING = 0x30 +PADDING_TAIL = 0x0 + +def auto_int(x): + return int(x, 0) + +def create_pid_file(args): + pid_file = open(args.pid_file, "wb") + buf = get_pid(args) + pid_file.write(buf) + pid_file.close() + +def get_pid(args): + buf = bytearray([PADDING] * PID_SIZE) + + enc = args.hw_version.rjust(8, '0').encode('ascii') + struct.pack_into('>8s', buf, 0x0, enc) + + enc = binascii.hexlify(args.hw_id.encode()) + struct.pack_into('>6s', buf, 0x8, enc) + + enc = args.sw_version.rjust(4, '0').encode('ascii') + struct.pack_into('>4s', buf, 0x64, enc) + + if (args.extra_padd_size): + tail = bytearray([PADDING_TAIL] * args.extra_padd_size) + if (args.extra_padd_byte): + struct.pack_into ('<i', tail, 0x0, + args.extra_padd_byte) + buf += tail + + return buf + +def main(): + global args + + parser = argparse.ArgumentParser(description='This script \ + generates firmware PID for the Sercomm-based devices') + + parser.add_argument('--hw-version', + dest='hw_version', + action='store', + type=str, + help='Sercomm hardware version') + + parser.add_argument('--hw-id', + dest='hw_id', + action='store', + type=str, + help='Sercomm hardware ID') + + parser.add_argument('--sw-version', + dest='sw_version', + action='store', + type=str, + help='Sercomm software version') + + parser.add_argument('--pid-file', + dest='pid_file', + action='store', + type=str, + help='Output PID file') + + parser.add_argument('--extra-padding-size', + dest='extra_padd_size', + action='store', + type=auto_int, + help='Size of extra NULL padding at the end of the file \ + (optional)') + + parser.add_argument('--extra-padding-first-byte', + dest='extra_padd_byte', + action='store', + type=auto_int, + help='First byte of extra padding (optional)') + + args = parser.parse_args() + + if ((not args.hw_version) or + (not args.hw_id) or + (not args.sw_version) or + (not args.pid_file)): + parser.print_help() + exit() + + create_pid_file(args) + +main() |