Write all baseband binaries into tagged image file.

firmware/tools/make_image_chunk.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python
+
+#
+# Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+#
+# This file is part of PortaPack.
+#
+# 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, 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; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+import sys
+import struct
+
+usage_message = """
+PortaPack image chunk writer
+
+Usage: <command> <input_binary> <four-characer tag> <output_tagged_binary>
+"""
+
+def read_image(path):
+	f = open(path, 'rb')
+	data = f.read()
+	f.close()
+	return data
+
+def write_image(data, path):
+	f = open(path, 'wb')
+	f.write(data)
+	f.close()
+
+if len(sys.argv) != 4:
+	print(usage_message)
+	sys.exit(-1)
+
+input_image = read_image(sys.argv[1])
+tag = sys.argv[2].encode()
+output_path = sys.argv[3]
+
+if len(tag) != 4:
+	print(usage_message)
+	sys.exit(-2)
+
+input_image_max_length = 32768
+if len(input_image) > input_image_max_length:
+	raise RuntimeError('image size of %d exceeds device size of %d bytes' % (len(input_image), input_image_max_length))
+if (len(input_image) & 3) != 0:
+	raise RuntimeError('image size of %d is not multiple of four' % (len(input_image,)))
+
+output_image = bytearray()
+output_image += struct.pack('<4sI', tag, len(input_image))
+output_image += input_image
+
+write_image(output_image, output_path)