#!/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 test file upload (or FPGA bitstream upload. """ import os import sys import time import struct import serial import argparse from binascii import crc32 CHUNK_SIZE = 256 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('--fpga', dest='fpga', action='store_true', default=False, help='Perform FPGA bitstream upload', ) parser.add_argument('--device', dest='device', default='/dev/ttyUSB0', help='Name of management port USB serial device', ) # positional argument(s) parser.add_argument('filename') return parser.parse_args() def _write(dst, data): for i in range(len(data)): dst.write(data[i]) time.sleep(0.1) if len(data) == 4: print("Wrote 0x{:02x}{:02x}{:02x}{:02x}".format(ord(data[0]), ord(data[1]), ord(data[2]), ord(data[3]))) else: print("Wrote {!r}".format(data)) def _read(dst): res = '' while True: x = dst.read(1) if not x: break res += x print ("Read {!r}".format(res)) return res def _execute(dst, cmd): _write(dst, '\r') prompt = _read(dst) if prompt.endswith('Username: '): _write(dst, 'ct\r') prompt = _read(dst) if prompt.endswith('Password: '): _write(dst, 'ct\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 False _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: # Skip header in FPGA bitstream file size -= 0x64 src.read(0x64) chunk_size = FPGA_CHUNK_SIZE response = _execute(dst, 'fpga bitstream upload') else: chunk_size = CHUNK_SIZE response = _execute(dst, 'filetransfer') if 'OK' not 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('ea0c0ce 
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