#!/usr/bin/python
#
# Copyright (c) 2016, NORDUnet A/S All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# - Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# - Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# - Neither the name of the NORDUnet nor the names of its contributors may
# be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
# IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""
Utility to upload new a firmware image or FPGA bitstream
"""
import os
import sys
import time
import struct
import serial
import argparse
import getpass
from binascii import crc32
FIRMWARE_CHUNK_SIZE = 4096
FPGA_CHUNK_SIZE = 4096
def parse_args():
"""
Parse the command line arguments
"""
parser = argparse.ArgumentParser(description = "File uploader",
add_help = True,
formatter_class = argparse.ArgumentDefaultsHelpFormatter,
)
parser.add_argument('-d', '--device',
dest='device',
default='/dev/ttyUSB0',
help='Name of management port USB serial device',
)
parser.add_argument('--fpga',
dest='fpga',
action='store_true', default=False,
help='Upload FPGA bitstream',
)
parser.add_argument('--firmware',
dest='firmware',
action='store_true', default=False,
help='Upload firmware image',
)
parser.add_argument('--bootloader',
dest='bootloader',
action='store_true', default=False,
help='Upload bootloader image',
)
# positional argument(s)
parser.add_argument('filename')
return parser.parse_args()
def _write(dst, data):
dst.write(data)
#if len(data) == 4:
# print("Wrote 0x{!s}".format(data.encode('hex')))
#else:
# print("Wrote {!r}".format(data))
def _read(dst):
res = ''
x = dst.read(1)
while not x:
x = dst.read(1)
while x:
res += x
x = dst.read(1)
#print ("Read {!r}".format(res))
return res
pin = None
def _execute(dst, cmd):
global pin
_write(dst, '\r')
prompt = _read(dst)
if prompt.endswith('Username: '):
_write(dst, 'so\r')
prompt = _read(dst)
if prompt.endswith('Password: '):
if not pin:
pin = getpass.getpass('SO PIN: ')
_write(dst, pin + '\r')
prompt = _read(dst)
if not prompt.endswith('> '):
#sys.stderr.write('Device does not seem to be ready for a file transfer (got {!r})\n'.format(prompt))
return prompt
_write(dst, cmd + '\r')
response = _read(dst)
return response
def send_file(filename, args, dst):
s = os.stat(filename)
size = s.st_size
src = open(filename, 'rb')
if args.fpga:
chunk_size = FPGA_CHUNK_SIZE
response = _execute(dst, 'fpga bitstream upload')
elif args.firmware:
chunk_size = FIRMWARE_CHUNK_SIZE
response = _execute(dst, 'firmware upload')
if 'Rebooting' in response:
response = _execute(dst, 'firmware upload')
elif args.bootloader:
chunk_size = FIRMWARE_CHUNK_SIZE
response = _execute(dst, 'bootloader upload')
if 'Access denied' in response:
print 'Access denied'
return False
if not 'OK' in response:
sys.stderr.write('Device did not accept the upload command (got {!r})\n'.format(response))
return False
crc = 0
counter = 0
# 1. Write size of file (4 bytes)
_write(dst, struct.pack('3d3f71c
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