diff options
Diffstat (limited to 'host/utils/usrp2_card_burner.py')
| -rwxr-xr-x | host/utils/usrp2_card_burner.py | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/host/utils/usrp2_card_burner.py b/host/utils/usrp2_card_burner.py new file mode 100755 index 000000000..8e4a4f224 --- /dev/null +++ b/host/utils/usrp2_card_burner.py @@ -0,0 +1,260 @@ +#!/usr/bin/env python +# +# Copyright 2010-2011 Ettus Research LLC +# +# 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>. +# + +import platform +import tempfile +import subprocess +try: + import urllib.request +except ImportError: + import urllib + urllib.request = urllib +import optparse +import math +import os +import re + +######################################################################## +# constants +######################################################################## +SECTOR_SIZE = 512 # bytes +MAX_FILE_SIZE = 1 * (2**20) # maximum number of bytes we'll burn to a slot + +FPGA_OFFSET = 0 # offset in flash to fpga image +FIRMWARE_OFFSET = 1 * (2**20) # offset in flash to firmware image + +MAX_SD_CARD_SIZE = 2048e6 # bytes (any bigger is sdhc) + +######################################################################## +# helper functions +######################################################################## +def command(*args): + p = subprocess.Popen( + args, + stdout=subprocess.PIPE, + stderr=subprocess.STDOUT, + ) + ret = p.wait() + verbose = p.stdout.read().decode('utf-8') + if ret != 0: raise Exception(verbose) + return verbose + +def get_dd_path(): + if platform.system() == 'Windows': + dd_path = os.path.join(os.path.dirname(__file__), 'dd.exe') + if os.path.exists(dd_path): return dd_path + dd_path = os.path.join(tempfile.gettempdir(), 'dd.exe') + if not os.path.exists(dd_path): + print('Downloading dd.exe to %s'%dd_path) + dd_bin = urllib.request.urlopen('http://files.ettus.com/dd.exe').read() + open(dd_path, 'wb').write(dd_bin) + return dd_path + return 'dd' + +def int_ceil_div(num, den): + return int(math.ceil(float(num)/float(den))) + +def get_tmp_file(): + tmp = tempfile.mkstemp() + os.close(tmp[0]) + return tmp[1] + +######################################################################## +# list possible devices +######################################################################## +def get_raw_device_hints(): + #################################################################### + # Platform Windows: parse the output of dd.exe --list + #################################################################### + if platform.system() == 'Windows': + def extract_info_value(info, key): + return info.split(key)[-1].split()[0] + def get_info_list(output): + in_info = False + for line in output.splitlines(): + if line.startswith('\\\\'): in_info = True; info = '' + elif in_info and not line.strip(): in_info = False; yield info + if in_info: info += '\n'+line.strip() + def is_info_valid(info): + try: + if 'link to' not in info: return False + #handles two spellings of remov(e)able: + if 'remov' not in info.lower(): return False + if 'size is' in info and int(extract_info_value(info, 'size is')) > MAX_SD_CARD_SIZE: return False + except: return False + return True + def extract_info_name(info): + for key in ('Mounted on', 'link to'): + if key in info: return extract_info_value(info, key) + return info.splitlines()[0].strip() + + return sorted(set(map(extract_info_name, list(filter(is_info_valid, get_info_list(command(get_dd_path(), '--list'))))))) + + #################################################################### + # Platform Linux: parse procfs /proc/partitions + #################################################################### + if platform.system() == 'Linux': + devs = list() + for line in command('cat', '/proc/partitions').splitlines(): + try: + major, minor, blocks, name = line.split() + if not name[-1].isdigit() and int(minor) == 0: continue + if int(blocks)*1024 > MAX_SD_CARD_SIZE: continue + except: continue + devs.append(os.path.join('/dev', name)) + + return sorted(set(devs)) + + #################################################################### + # Platform Mac OS X: parse diskutil list and info commands + #################################################################### + if platform.system() == 'Darwin': + devs = [d.split()[0] for d in [l for l in command('diskutil', 'list').splitlines() if l.startswith('/dev')]] + def output_to_info(output): + return dict([list(map(lambda x: x.strip(), pair.lower().split(':'))) for pair in [l for l in output.splitlines() if ':' in l]]) + def is_dev_valid(dev): + info = output_to_info(command('diskutil', 'info', dev)) + try: + if 'internal' in info and info['internal'] == 'yes': return False + if 'ejectable' in info and info['ejectable'] == 'no': return False + if 'total size' in info: + size_match = re.match('^.*\((\d+)\s*bytes\).*$', info['total size']) + if size_match and int(size_match.groups()[0]) > MAX_SD_CARD_SIZE: return False + except: return False + return True + + return sorted(set(filter(is_dev_valid, devs))) + + #################################################################### + # Platform Others: + #################################################################### + return () + +######################################################################## +# write and verify with dd +######################################################################## +def verify_image(image_file, device_file, offset): + #create a temporary file to store the readback image + tmp_file = get_tmp_file() + + #read the image data + img_data = open(image_file, 'rb').read() + count = int_ceil_div(len(img_data), SECTOR_SIZE) + + #execute a dd subprocess + verbose = command( + get_dd_path(), + "of=%s"%tmp_file, + "if=%s"%device_file, + "skip=%d"%(offset/SECTOR_SIZE), + "bs=%d"%SECTOR_SIZE, + "count=%d"%count, + ) + + #verfy the data + tmp_data = open(tmp_file, 'rb').read(len(img_data)) + if img_data != tmp_data: return 'Verification Failed:\n%s'%verbose + return 'Verification Passed:\n%s'%verbose + +def write_image(image_file, device_file, offset): + #create a temporary file to store the padded image + tmp_file = get_tmp_file() + + #write the padded image data + img_data = open(image_file, 'rb').read() + count = int_ceil_div(len(img_data), SECTOR_SIZE) + pad_len = SECTOR_SIZE*count - len(img_data) + padding = bytes(b'\x00')*pad_len #zero-padding + open(tmp_file, 'wb').write(img_data + padding) + + #execute a dd subprocess + verbose = command( + get_dd_path(), + "if=%s"%tmp_file, + "of=%s"%device_file, + "seek=%d"%(offset/SECTOR_SIZE), + "bs=%d"%SECTOR_SIZE, + "count=%d"%count, + ) + + try: #exec the sync command (only works on linux) + if platform.system() == 'Linux': command('sync') + except: pass + + return verbose + +def write_and_verify(image_file, device_file, offset): + if os.path.getsize(image_file) > MAX_FILE_SIZE: + raise Exception('Image file larger than %d bytes!'%MAX_FILE_SIZE) + return '%s\n%s'%( + write_image( + image_file=image_file, + device_file=device_file, + offset=offset, + ), verify_image( + image_file=image_file, + device_file=device_file, + offset=offset, + ), + ) + +def burn_sd_card(dev, fw, fpga): + verbose = '' + if fw: verbose += 'Burn firmware image:\n%s\n'%write_and_verify( + image_file=fw, device_file=dev, offset=FIRMWARE_OFFSET + ) + if fpga: verbose += 'Burn fpga image:\n%s\n'%write_and_verify( + image_file=fpga, device_file=dev, offset=FPGA_OFFSET + ) + return verbose + +######################################################################## +# command line options +######################################################################## +def get_options(): + parser = optparse.OptionParser() + parser.add_option("--dev", type="string", help="raw device path", default='') + parser.add_option("--fw", type="string", help="firmware image path (optional)", default='') + parser.add_option("--fpga", type="string", help="fpga image path (optional)", default='') + parser.add_option("--list", action="store_true", help="list possible raw devices", default=False) + parser.add_option("--force", action="store_true", help="override safety check", default=False) + (options, args) = parser.parse_args() + + return options + +######################################################################## +# main +######################################################################## +if __name__=='__main__': + options = get_options() + device_hints = get_raw_device_hints() + show_listing = options.list + + if not show_listing and not options.force and options.dev and options.dev not in device_hints: + print('The device "%s" was not in the list of possible raw devices.'%options.dev) + print('The card burner application will now exit without burning your card.') + print('To override this safety check, specify the --force option.\n') + show_listing = True + + if show_listing: + print('Possible raw devices:') + print(' ' + '\n '.join(device_hints)) + exit() + + if not options.dev: raise Exception('no raw device path specified') + print(burn_sd_card(dev=options.dev, fw=options.fw, fpga=options.fpga)) |