mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-10-01 01:26:06 -04:00
87 lines
2.2 KiB
Python
Executable File
87 lines
2.2 KiB
Python
Executable File
#!/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
|
|
|
|
usage_message = """
|
|
PortaPack SPI flash image generator
|
|
|
|
Usage: <command> <bootstrap_path> <baseband_path> <application_path> <output_path>
|
|
Where paths refer to the .bin files for each component project.
|
|
"""
|
|
|
|
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) != 5:
|
|
print(usage_message)
|
|
sys.exit(-1)
|
|
|
|
bootstrap_image = read_image(sys.argv[1])
|
|
baseband_image = read_image(sys.argv[2])
|
|
application_image = read_image(sys.argv[3])
|
|
output_path = sys.argv[4]
|
|
|
|
spi_size = 1048576
|
|
|
|
images = (
|
|
{
|
|
'name': 'bootstrap',
|
|
'data': bootstrap_image,
|
|
'size': 0x8000,
|
|
},
|
|
{
|
|
'name': 'baseband',
|
|
'data': baseband_image,
|
|
'size': 0x38000,
|
|
},
|
|
{
|
|
'name': 'application',
|
|
'data': application_image,
|
|
'size': len(application_image),
|
|
}
|
|
)
|
|
|
|
spi_image = bytearray()
|
|
spi_image_default_byte = bytearray((255,))
|
|
|
|
for image in images:
|
|
if len(image['data']) > image['size']:
|
|
raise RuntimeError('data for image "%(name)s" is longer than 0x%(size)x bytes' % image)
|
|
pad_size = image['size'] - len(image['data'])
|
|
padded_data = image['data'] + (spi_image_default_byte * pad_size)
|
|
spi_image += padded_data
|
|
|
|
if len(spi_image) > spi_size:
|
|
raise RuntimeError('SPI flash image size of %d exceeds device size of %d bytes' % (len(spi_image), spi_size))
|
|
|
|
write_image(spi_image, output_path)
|