Dynamic baseband module loading from SD card

firmware/tools/make_baseband_file.py

@@ -0,0 +1,92 @@
+#!/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
+import md5
+
+usage_message = """
+Baseband processors modules package file generator
+
+Usage: <command> <module_name> <module_name>...
+"""
+
+def read_image(path):
+	f = open(path, 'rb')
+	data = f.read()
+	f.close()
+	return data
+
+def write_file(data, path):
+	f = open(path, 'wb')
+	f.write(data)
+	f.close()
+
+if len(sys.argv) == 1:
+	print(usage_message)
+	sys.exit(-1)
+
+data = bytearray()
+h_data = bytearray()
+name = bytearray()
+info = bytearray()
+description = bytearray()
+data_default_byte = bytearray((0,))
+m = md5.new()
+
+sys.argv = sys.argv[1:]
+
+# Format for module file:
+# Magic (4), Version (2), Length (4), Name (16), MD5 (16), Description (214)
+# Unpadded module binary...
+
+for args in sys.argv:
+	data = read_image(args + '/build/' + args + '.bin')
+	info = 'PPM '
+	info += struct.pack('H', 1)
+	info += struct.pack('I', len(data))
+	name = read_image(args + '/name')
+	if len(name) > 16:
+		name = name[0:15]
+	pad_size = 16 - len(name)
+	name += (data_default_byte * pad_size)
+	info += name
+	m.update(data)
+	digest = m.digest()
+	pad_size = 16 - len(digest)
+	digest += (data_default_byte * pad_size)
+	info += digest
+	description = read_image(args + '/description')
+	if len(description) > 214:
+		description = description[0:213]
+	pad_size = 214 - len(description)
+	description += (data_default_byte * pad_size)
+	info += description
+	data = info + data
+	write_file(data, args + '.bin')
+	md5sum = ''
+	for byte in digest:
+		md5sum += '0x' + format(byte, '02x') + ','
+	h_data += 'const char md5_' + args.replace('-','_') + '[16] = {' + md5sum + '};\n'
+
+write_file(h_data, 'application/modules.h')