Merge branch 'master' of bitbucket.org:nuttx/nuttx
This commit is contained in:
Gregory Nutt
commit
a9d03db61b
@ -1025,3 +1025,12 @@ zipme.sh
|
||||
I use this script to create the nuttx-xx.yy.tar.gz tarballs for
|
||||
release on Bitbucket.org. It is handy because it also does the
|
||||
kind of clean that you need to do to make a clean code release.
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||||
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flash_writter.py
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----------------
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||||
This flash writter is using the xmodem for firmware transfer on
|
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boards based on cxd56 chip (Ex. Spresense)
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|
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for flashing the .spk image to the board please use:
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tools/flash_writer.py -s -c /dev/ttyUSB0 -d -b 115200 -n nuttx.spk
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553
tools/flash_writer.py
Executable file
553
tools/flash_writer.py
Executable file
@ -0,0 +1,553 @@
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#! /usr/bin/env python3
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__copyright__ = ['Copyright (C) 2018 Sony Semiconductor Solutions Corp.']
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__license__ = 'LGPL v2.1'
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|
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import time
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import sys
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import os
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import struct
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import glob
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import fnmatch
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import errno
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import telnetlib
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import argparse
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import shutil
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import subprocess
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import re
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import xmodem
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import_serial_module = True
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# When SDK release, plase set SDK_RELEASE as True.
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SDK_RELEASE = False
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if SDK_RELEASE :
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PRINT_RAW_COMMAND = False
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REBOOT_AT_END = True
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else :
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PRINT_RAW_COMMAND = True
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REBOOT_AT_END = True
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try:
|
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import serial
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except:
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import_serial_module = False
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||||
|
||||
# supported environment various
|
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# CXD56_PORT
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# CXD56_TELNETSRV_PORT
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# CXD56_TELNETSRV_IP
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|
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PROTOCOL_SERIAL = 0
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PROTOCOL_TELNET = 1
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MAX_DOT_COUNT = 70
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# configure parameters and default value
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class ConfigArgs:
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PROTOCOL_TYPE = None
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SERIAL_PORT = "COM1"
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SERVER_PORT = 4569
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SERVER_IP = "localhost"
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EOL = bytes([10])
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WAIT_RESET = True
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AUTO_RESET = False
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DTR_RESET = False
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XMODEM_BAUD = 0
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NO_SET_BOOTABLE = False
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PACKAGE_NAME = []
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FILE_NAME = []
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ERASE_NAME = []
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PKGSYS_NAME = []
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PKGAPP_NAME = []
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PKGUPD_NAME = []
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ROM_MSG = [b"Welcome to nash"]
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XMDM_MSG = "Waiting for XMODEM (CRC or 1K) transfer. Ctrl-X to cancel."
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|
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class ConfigArgsLoader():
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def __init__(self):
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self.parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter)
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self.parser.add_argument("package_name", help="the name of the package to install", nargs='*')
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self.parser.add_argument("-f", "--file", dest="file_name", help="save file", action='append')
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self.parser.add_argument("-e", "--erase", dest="erase_name", help="erase file", action='append')
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self.parser.add_argument("-S", "--sys", dest="pkgsys_name", help="the name of the system package to install", action='append')
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self.parser.add_argument("-A", "--app", dest="pkgapp_name", help="the name of the application package to install", action='append')
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self.parser.add_argument("-U", "--upd", dest="pkgupd_name", help="the name of the updater package to install", action='append')
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self.parser.add_argument("-a", "--auto-reset", dest="auto_reset",
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action="store_true", default=None,
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help="try to auto reset develop board if possible")
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self.parser.add_argument("-d", "--dtr-reset", dest="dtr_reset",
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action="store_true", default=None,
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help="try to auto reset develop board if possible")
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self.parser.add_argument("-n", "--no-set-bootable", dest="no_set_bootable",
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action="store_true", default=None,
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help="not to set bootable")
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group = self.parser.add_argument_group()
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group.add_argument("-i", "--server-ip", dest="server_ip",
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help="the ip address connected to the telnet server")
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group.add_argument("-p", "--server-port", dest="server_port", type=int,
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help="the port connected to the telnet server")
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group = self.parser.add_argument_group()
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group.add_argument("-c", "--serial-port", dest="serial_port", help="the serial port")
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group.add_argument("-b", "--xmodem-baudrate", dest="xmodem_baud", help="Use the faster baudrate in xmodem")
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mutually_group = self.parser.add_mutually_exclusive_group()
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mutually_group.add_argument("-t", "--telnet-protocol", dest="telnet_protocol",
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action="store_true", default=None,
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help="use the telnet protocol for binary transmission")
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mutually_group.add_argument("-s", "--serial-protocol", dest="serial_protocol",
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action="store_true", default=None,
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help="use the serial port for binary transmission, default options")
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mutually_group2 = self.parser.add_mutually_exclusive_group()
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mutually_group2.add_argument("-F", "--force-wait-reset", dest="wait_reset",
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action="store_true", default=None,
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help="force wait for pressing RESET button")
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mutually_group2.add_argument("-N", "--no-wait-reset", dest="wait_reset",
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action="store_false", default=None,
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help="if possible, skip to wait for pressing RESET button")
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def update_config(self):
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args = self.parser.parse_args()
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ConfigArgs.PACKAGE_NAME = args.package_name
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ConfigArgs.FILE_NAME = args.file_name
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ConfigArgs.ERASE_NAME = args.erase_name
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ConfigArgs.PKGSYS_NAME = args.pkgsys_name
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ConfigArgs.PKGAPP_NAME = args.pkgapp_name
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ConfigArgs.PKGUPD_NAME = args.pkgupd_name
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# Get serial port or telnet server ip etc
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if args.serial_protocol == True:
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ConfigArgs.PROTOCOL_TYPE = PROTOCOL_SERIAL
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elif args.telnet_protocol == True:
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ConfigArgs.PROTOCOL_TYPE = PROTOCOL_TELNET
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if ConfigArgs.PROTOCOL_TYPE == None:
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proto = os.environ.get("CXD56_PROTOCOL")
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if proto is not None:
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if 's' in proto:
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ConfigArgs.PROTOCOL_TYPE = PROTOCOL_SERIAL
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elif 't' in proto:
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ConfigArgs.PROTOCOL_TYPE = PROTOCOL_TELNET
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if ConfigArgs.PROTOCOL_TYPE == None:
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||||
ConfigArgs.PROTOCOL_TYPE = PROTOCOL_SERIAL
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if ConfigArgs.PROTOCOL_TYPE == PROTOCOL_SERIAL:
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if args.serial_port is not None:
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ConfigArgs.SERIAL_PORT = args.serial_port
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||||
else:
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# Get serial port from the environment
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port = os.environ.get("CXD56_PORT")
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if port is not None:
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ConfigArgs.SERIAL_PORT = port
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||||
else:
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||||
print("CXD56_PORT is not set, Use " + ConfigArgs.SERIAL_PORT + ".")
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else:
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||||
ConfigArgs.PROTOCOL_TYPE = PROTOCOL_TELNET
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||||
if args.server_port is not None:
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ConfigArgs.SERVER_PORT = args.server_port
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else:
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port = os.environ.get("CXD56_TELNETSRV_PORT")
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if port is not None:
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ConfigArgs.SERVER_PORT = port
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else:
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print("CXD56_TELNETSRV_PORT is not set, Use " + str(ConfigArgs.SERVER_PORT) + ".")
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if args.server_ip is not None:
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ConfigArgs.SERVER_IP = args.server_ip
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else:
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ip = os.environ.get("CXD56_TELNETSRV_IP")
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if ip is not None:
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ConfigArgs.SERVER_IP = ip
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else:
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print("CXD56_TELNETSRV_IP is not set, Use " + ConfigArgs.SERVER_IP + ".")
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if args.xmodem_baud is not None:
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ConfigArgs.XMODEM_BAUD = args.xmodem_baud
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if args.auto_reset is not None:
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ConfigArgs.AUTO_RESET = args.auto_reset
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||||
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||||
if args.dtr_reset is not None:
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ConfigArgs.DTR_RESET = args.dtr_reset
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if args.no_set_bootable is not None:
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ConfigArgs.NO_SET_BOOTABLE = args.no_set_bootable
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if args.wait_reset is not None:
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ConfigArgs.WAIT_RESET = args.wait_reset
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class TelnetDev:
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def __init__(self):
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srv_ipaddr = ConfigArgs.SERVER_IP
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srv_port = ConfigArgs.SERVER_PORT
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self.recvbuf = b'';
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try:
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self.telnet = telnetlib.Telnet(host=srv_ipaddr, port=srv_port, timeout=10)
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# There is a ack to be sent after connecting to the telnet server.
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self.telnet.write(b"\xff")
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except Exception as e:
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print("Cannot connect to the server %s:%d" % (srv_ipaddr, srv_port))
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sys.exit(e.args[0])
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def readline(self, size=None):
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res = b''
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ch = b''
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while ch != ConfigArgs.EOL:
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ch = self.getc_raw(1, timeout=0.1)
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if ch == b'':
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return res
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res += ch
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return res
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def getc_raw(self, size, timeout=1):
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res = b''
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tm = time.monotonic()
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while size > 0:
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while self.recvbuf == b'':
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self.recvbuf = self.telnet.read_eager()
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if self.recvbuf == b'':
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if (time.monotonic() - tm) > timeout:
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return res
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time.sleep(0.1)
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res += self.recvbuf[0:1]
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self.recvbuf = self.recvbuf[1:]
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size -= 1
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return res
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def write(self, buffer):
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self.telnet.write(buffer)
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def discard_inputs(self, timeout=1.0):
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while True:
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ch = self.getc_raw(1, timeout=timeout)
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if ch == b'':
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break
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def getc(self, size, timeout=1):
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c = self.getc_raw(size, timeout)
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return c
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def putc(self, buffer, timeout=1):
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self.telnet.write(buffer)
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self.show_progress(len(buffer))
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def reboot(self):
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# no-op
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||||
pass
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||||
|
||||
def set_file_size(self, filesize):
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||||
self.bytes_transfered = 0
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||||
self.filesize = filesize
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||||
self.count = 0
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||||
|
||||
def show_progress(self, sendsize):
|
||||
if PRINT_RAW_COMMAND:
|
||||
if self.count < MAX_DOT_COUNT:
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self.bytes_transfered = self.bytes_transfered + sendsize
|
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cur_count = int(self.bytes_transfered * MAX_DOT_COUNT / self.filesize)
|
||||
if MAX_DOT_COUNT < cur_count:
|
||||
cur_count = MAX_DOT_COUNT
|
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for idx in range(cur_count - self.count):
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||||
print('#',end='')
|
||||
sys.stdout.flush()
|
||||
self.count = cur_count
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||||
if self.count == MAX_DOT_COUNT:
|
||||
print("\n")
|
||||
|
||||
class SerialDev:
|
||||
def __init__(self):
|
||||
if import_serial_module is False:
|
||||
print("Cannot import serial module, maybe it's not install yet.")
|
||||
print("\n", end="")
|
||||
print("Please install python-setuptool by Cygwin installer.")
|
||||
print("After that use easy_intall command to install serial module")
|
||||
print(" $ cd tool/")
|
||||
print(" $ python3 -m easy_install pyserial-2.7.tar.gz")
|
||||
quit()
|
||||
else:
|
||||
port = ConfigArgs.SERIAL_PORT
|
||||
try:
|
||||
self.serial = serial.Serial(port, baudrate=115200,
|
||||
parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE,
|
||||
bytesize=serial.EIGHTBITS, timeout=0.1)
|
||||
except Exception as e:
|
||||
print("Cannot open port : " + port)
|
||||
sys.exit(e.args[0])
|
||||
|
||||
def readline(self, size=None):
|
||||
return self.serial.readline(size)
|
||||
|
||||
def write(self, buffer):
|
||||
self.serial.write(buffer)
|
||||
self.serial.flush()
|
||||
|
||||
def discard_inputs(self, timeout=1.0):
|
||||
time.sleep(timeout)
|
||||
self.serial.flushInput()
|
||||
|
||||
def getc(self, size, timeout=1):
|
||||
self.serial.timeout = timeout
|
||||
c = self.serial.read(size)
|
||||
self.serial.timeout = 0.1
|
||||
return c
|
||||
|
||||
def putc(self, buffer, timeout=1):
|
||||
self.serial.timeout = timeout
|
||||
self.serial.write(buffer)
|
||||
self.serial.flush()
|
||||
self.serial.timeout = 0.1
|
||||
self.show_progress(len(buffer))
|
||||
|
||||
# Note: windows platform dependent code
|
||||
def putc_win(self, buffer, timeout=1):
|
||||
self.serial.write(buffer)
|
||||
self.show_progress(len(buffer))
|
||||
while True:
|
||||
if self.serial.out_waiting == 0:
|
||||
break
|
||||
|
||||
def setBaudrate(self, baudrate):
|
||||
# self.serial.setBaudrate(baudrate)
|
||||
self.serial.baudrate = baudrate
|
||||
|
||||
def reboot(self):
|
||||
# Target Reset by DTR
|
||||
self.serial.setDTR(False)
|
||||
self.serial.setDTR(True)
|
||||
self.serial.setDTR(False)
|
||||
|
||||
def set_file_size(self, filesize):
|
||||
self.bytes_transfered = 0
|
||||
self.filesize = filesize
|
||||
self.count = 0
|
||||
|
||||
def show_progress(self, sendsize):
|
||||
if PRINT_RAW_COMMAND:
|
||||
if self.count < MAX_DOT_COUNT:
|
||||
self.bytes_transfered = self.bytes_transfered + sendsize
|
||||
cur_count = int(self.bytes_transfered * MAX_DOT_COUNT / self.filesize)
|
||||
if MAX_DOT_COUNT < cur_count:
|
||||
cur_count = MAX_DOT_COUNT
|
||||
for idx in range(cur_count - self.count):
|
||||
print('#',end='')
|
||||
sys.stdout.flush()
|
||||
self.count = cur_count
|
||||
if self.count == MAX_DOT_COUNT:
|
||||
print("\n")
|
||||
|
||||
class FlashWriter:
|
||||
def __init__(self, protocol_sel=PROTOCOL_SERIAL):
|
||||
if protocol_sel == PROTOCOL_TELNET:
|
||||
self.serial = TelnetDev()
|
||||
else:
|
||||
self.serial = SerialDev()
|
||||
|
||||
def cancel_autoboot(self) :
|
||||
boot_msg = ''
|
||||
self.serial.reboot() # Target reboot before send 'r'
|
||||
while boot_msg == '' :
|
||||
rx = self.serial.readline().strip()
|
||||
self.serial.write(b"r") # Send "r" key to avoid auto boot
|
||||
for msg in ROM_MSG :
|
||||
if msg in rx :
|
||||
boot_msg = msg
|
||||
break
|
||||
while True :
|
||||
rx = self.serial.readline().decode(errors="replace").strip()
|
||||
if "updater" in rx :
|
||||
# Workaround : Sometime first character is dropped.
|
||||
# Send line feed as air shot before actual command.
|
||||
self.serial.write(b"\n") # Send line feed
|
||||
self.serial.discard_inputs()# Clear input buffer to sync
|
||||
return boot_msg.decode(errors="ignore")
|
||||
|
||||
def recv(self):
|
||||
rx = self.serial.readline()
|
||||
if PRINT_RAW_COMMAND :
|
||||
serial_line = rx.decode(errors="replace")
|
||||
if serial_line.strip() != "" and not serial_line.startswith(XMDM_MSG):
|
||||
print(serial_line, end="")
|
||||
return rx
|
||||
|
||||
def wait(self, string):
|
||||
while True:
|
||||
rx = self.recv()
|
||||
if string.encode() in rx:
|
||||
time.sleep(0.1)
|
||||
break
|
||||
|
||||
def wait_for_prompt(self):
|
||||
prompt_pat = re.compile(b"updater")
|
||||
while True:
|
||||
rx = self.recv()
|
||||
if prompt_pat.search(rx):
|
||||
time.sleep(0.1)
|
||||
break
|
||||
|
||||
def send(self, string):
|
||||
self.serial.write(str(string).encode() + b"\n")
|
||||
rx = self.serial.readline()
|
||||
if PRINT_RAW_COMMAND :
|
||||
print(rx.decode(errors="replace"), end="")
|
||||
|
||||
def read_output(self, prompt_text) :
|
||||
output = []
|
||||
while True :
|
||||
rx = self.serial.readline()
|
||||
if prompt_text.encode() in rx :
|
||||
time.sleep(0.1)
|
||||
break
|
||||
if rx != "" :
|
||||
output.append(rx.decode(errors="ignore").rstrip())
|
||||
return output
|
||||
|
||||
def install_files(self, files, command) :
|
||||
if ConfigArgs.XMODEM_BAUD:
|
||||
command += " -b " + ConfigArgs.XMODEM_BAUD
|
||||
if os.name == 'nt':
|
||||
modem = xmodem.XMODEM(self.serial.getc, self.serial.putc_win, 'xmodem1k')
|
||||
else:
|
||||
modem = xmodem.XMODEM(self.serial.getc, self.serial.putc, 'xmodem1k')
|
||||
for file in files:
|
||||
with open(file, "rb") as bin :
|
||||
self.send(command)
|
||||
print("Install " + file)
|
||||
self.wait(XMDM_MSG)
|
||||
print("|0%" +
|
||||
"-" * (int(MAX_DOT_COUNT / 2) - 6) +
|
||||
"50%" +
|
||||
"-" * (MAX_DOT_COUNT - int(MAX_DOT_COUNT / 2) - 5) +
|
||||
"100%|")
|
||||
if ConfigArgs.XMODEM_BAUD:
|
||||
self.serial.setBaudrate(ConfigArgs.XMODEM_BAUD)
|
||||
self.serial.discard_inputs() # Clear input buffer to sync
|
||||
self.serial.set_file_size(os.path.getsize(file))
|
||||
modem.send(bin)
|
||||
if ConfigArgs.XMODEM_BAUD:
|
||||
self.serial.setBaudrate(115200)
|
||||
self.wait_for_prompt()
|
||||
|
||||
def save_files(self, files) :
|
||||
if ConfigArgs.XMODEM_BAUD:
|
||||
command = "save_file -b " + ConfigArgs.XMODEM_BAUD + " -x "
|
||||
else:
|
||||
command = "save_file -x "
|
||||
if os.name == 'nt':
|
||||
modem = xmodem.XMODEM(self.serial.getc, self.serial.putc_win, 'xmodem1k')
|
||||
else:
|
||||
modem = xmodem.XMODEM(self.serial.getc, self.serial.putc, 'xmodem1k')
|
||||
for file in files:
|
||||
with open(file, "rb") as bin :
|
||||
self.send(command + os.path.basename(file))
|
||||
print("Save " + file)
|
||||
self.wait(XMDM_MSG)
|
||||
if ConfigArgs.XMODEM_BAUD:
|
||||
self.serial.setBaudrate(ConfigArgs.XMODEM_BAUD)
|
||||
self.serial.discard_inputs() # Clear input buffer to sync
|
||||
self.serial.set_file_size(os.path.getsize(file))
|
||||
modem.send(bin)
|
||||
if ConfigArgs.XMODEM_BAUD:
|
||||
self.serial.setBaudrate(115200)
|
||||
self.wait_for_prompt()
|
||||
self.send("chmod d+rw " + os.path.basename(file))
|
||||
self.wait_for_prompt()
|
||||
|
||||
def delete_files(self, files) :
|
||||
for file in files :
|
||||
self.delete_binary(file)
|
||||
|
||||
def delete_binary(self, bin_name) :
|
||||
self.send("rm " + bin_name)
|
||||
self.wait_for_prompt()
|
||||
|
||||
def main():
|
||||
try:
|
||||
config_loader = ConfigArgsLoader()
|
||||
config_loader.update_config()
|
||||
except:
|
||||
return errno.EINVAL
|
||||
|
||||
# Wait to reset the board
|
||||
writer = FlashWriter(ConfigArgs.PROTOCOL_TYPE)
|
||||
|
||||
do_wait_reset = True
|
||||
if ConfigArgs.AUTO_RESET:
|
||||
if subprocess.call("cd " + sys.path[0] + "; ./reset_board.sh", shell=True) == 0:
|
||||
print("auto reset board sucess!!")
|
||||
do_wait_reset = False
|
||||
bootrom_msg = writer.cancel_autoboot()
|
||||
|
||||
if ConfigArgs.DTR_RESET:
|
||||
do_wait_reset = False
|
||||
bootrom_msg = writer.cancel_autoboot()
|
||||
|
||||
if ConfigArgs.WAIT_RESET == False and do_wait_reset == True:
|
||||
rx = writer.recv()
|
||||
time.sleep(1)
|
||||
for i in range(3):
|
||||
writer.send("")
|
||||
rx = writer.recv()
|
||||
if "updater".encode() in rx:
|
||||
# No need to wait for reset
|
||||
do_wait_reset = False
|
||||
break
|
||||
time.sleep(1)
|
||||
|
||||
if do_wait_reset:
|
||||
# Wait to reset the board
|
||||
print('Please press RESET button on target board')
|
||||
sys.stdout.flush()
|
||||
bootrom_msg = writer.cancel_autoboot()
|
||||
|
||||
# Remove files
|
||||
if ConfigArgs.ERASE_NAME :
|
||||
print(">>> Remove exisiting files ...")
|
||||
writer.delete_files(ConfigArgs.ERASE_NAME)
|
||||
|
||||
# Install files
|
||||
if ConfigArgs.PACKAGE_NAME or ConfigArgs.PKGSYS_NAME or ConfigArgs.PKGAPP_NAME or ConfigArgs.PKGUPD_NAME:
|
||||
print(">>> Install files ...")
|
||||
if ConfigArgs.PACKAGE_NAME :
|
||||
writer.install_files(ConfigArgs.PACKAGE_NAME, "install")
|
||||
if ConfigArgs.PKGSYS_NAME :
|
||||
writer.install_files(ConfigArgs.PKGSYS_NAME, "install")
|
||||
if ConfigArgs.PKGAPP_NAME :
|
||||
writer.install_files(ConfigArgs.PKGAPP_NAME, "install")
|
||||
if ConfigArgs.PKGUPD_NAME :
|
||||
writer.install_files(ConfigArgs.PKGUPD_NAME, "install -k updater.key")
|
||||
|
||||
# Save files
|
||||
if ConfigArgs.FILE_NAME :
|
||||
print(">>> Save files ...")
|
||||
writer.save_files(ConfigArgs.FILE_NAME)
|
||||
|
||||
# Set auto boot
|
||||
if not ConfigArgs.NO_SET_BOOTABLE:
|
||||
print(">>> Save Configuration to FlashROM ...")
|
||||
writer.send("set bootable M0P")
|
||||
writer.wait_for_prompt()
|
||||
|
||||
# Sync all cached data to flash
|
||||
writer.send("sync")
|
||||
writer.wait_for_prompt()
|
||||
|
||||
if REBOOT_AT_END :
|
||||
print("Restarting the board ...")
|
||||
writer.send("reboot")
|
||||
|
||||
return 0
|
||||
|
||||
if __name__ == "__main__":
|
||||
try:
|
||||
sys.exit(main())
|
||||
except KeyboardInterrupt:
|
||||
print("Canceled by keyboard interrupt.")
|
||||
pass
|
||||
590
tools/xmodem.py
Normal file
590
tools/xmodem.py
Normal file
@ -0,0 +1,590 @@
|
||||
'''
|
||||
===============================
|
||||
XMODEM file transfer protocol
|
||||
===============================
|
||||
|
||||
.. $Id$
|
||||
|
||||
This is a literal implementation of XMODEM.TXT_, XMODEM1K.TXT_ and
|
||||
XMODMCRC.TXT_, support for YMODEM and ZMODEM is pending. YMODEM should
|
||||
be fairly easy to implement as it is a hack on top of the XMODEM
|
||||
protocol using sequence bytes ``0x00`` for sending file names (and some
|
||||
meta data).
|
||||
|
||||
.. _XMODEM.TXT: doc/XMODEM.TXT
|
||||
.. _XMODEM1K.TXT: doc/XMODEM1K.TXT
|
||||
.. _XMODMCRC.TXT: doc/XMODMCRC.TXT
|
||||
|
||||
Data flow example including error recovery
|
||||
==========================================
|
||||
|
||||
Here is a sample of the data flow, sending a 3-block message.
|
||||
It includes the two most common line hits - a garbaged block,
|
||||
and an ``ACK`` reply getting garbaged. ``CRC`` or ``CSUM`` represents
|
||||
the checksum bytes.
|
||||
|
||||
XMODEM 128 byte blocks
|
||||
----------------------
|
||||
|
||||
::
|
||||
|
||||
SENDER RECEIVER
|
||||
|
||||
<-- NAK
|
||||
SOH 01 FE Data[128] CSUM -->
|
||||
<-- ACK
|
||||
SOH 02 FD Data[128] CSUM -->
|
||||
<-- ACK
|
||||
SOH 03 FC Data[128] CSUM -->
|
||||
<-- ACK
|
||||
SOH 04 FB Data[128] CSUM -->
|
||||
<-- ACK
|
||||
SOH 05 FA Data[100] CPMEOF[28] CSUM -->
|
||||
<-- ACK
|
||||
EOT -->
|
||||
<-- ACK
|
||||
|
||||
XMODEM-1k blocks, CRC mode
|
||||
--------------------------
|
||||
|
||||
::
|
||||
|
||||
SENDER RECEIVER
|
||||
|
||||
<-- C
|
||||
STX 01 FE Data[1024] CRC CRC -->
|
||||
<-- ACK
|
||||
STX 02 FD Data[1024] CRC CRC -->
|
||||
<-- ACK
|
||||
STX 03 FC Data[1000] CPMEOF[24] CRC CRC -->
|
||||
<-- ACK
|
||||
EOT -->
|
||||
<-- ACK
|
||||
|
||||
Mixed 1024 and 128 byte Blocks
|
||||
------------------------------
|
||||
|
||||
::
|
||||
|
||||
SENDER RECEIVER
|
||||
|
||||
<-- C
|
||||
STX 01 FE Data[1024] CRC CRC -->
|
||||
<-- ACK
|
||||
STX 02 FD Data[1024] CRC CRC -->
|
||||
<-- ACK
|
||||
SOH 03 FC Data[128] CRC CRC -->
|
||||
<-- ACK
|
||||
SOH 04 FB Data[100] CPMEOF[28] CRC CRC -->
|
||||
<-- ACK
|
||||
EOT -->
|
||||
<-- ACK
|
||||
|
||||
YMODEM Batch Transmission Session (1 file)
|
||||
------------------------------------------
|
||||
|
||||
::
|
||||
|
||||
SENDER RECEIVER
|
||||
<-- C (command:rb)
|
||||
SOH 00 FF foo.c NUL[123] CRC CRC -->
|
||||
<-- ACK
|
||||
<-- C
|
||||
SOH 01 FE Data[128] CRC CRC -->
|
||||
<-- ACK
|
||||
SOH 02 FC Data[128] CRC CRC -->
|
||||
<-- ACK
|
||||
SOH 03 FB Data[100] CPMEOF[28] CRC CRC -->
|
||||
<-- ACK
|
||||
EOT -->
|
||||
<-- NAK
|
||||
EOT -->
|
||||
<-- ACK
|
||||
<-- C
|
||||
SOH 00 FF NUL[128] CRC CRC -->
|
||||
<-- ACK
|
||||
|
||||
|
||||
'''
|
||||
|
||||
__author__ = 'Wijnand Modderman <maze@pyth0n.org>'
|
||||
__copyright__ = ['Copyright (c) 2010 Wijnand Modderman',
|
||||
'Copyright (c) 1981 Chuck Forsberg']
|
||||
__license__ = 'MIT'
|
||||
__version__ = '0.3.2'
|
||||
|
||||
import logging
|
||||
import time
|
||||
import sys
|
||||
from functools import partial
|
||||
import collections
|
||||
|
||||
# Loggerr
|
||||
log = logging.getLogger('xmodem')
|
||||
|
||||
# Protocol bytes
|
||||
SOH = bytes([0x01])
|
||||
STX = bytes([0x02])
|
||||
EOT = bytes([0x04])
|
||||
ACK = bytes([0x06])
|
||||
DLE = bytes([0x10])
|
||||
NAK = bytes([0x15])
|
||||
CAN = bytes([0x18])
|
||||
CRC = bytes([0x43]) # C
|
||||
|
||||
|
||||
class XMODEM(object):
|
||||
'''
|
||||
XMODEM Protocol handler, expects an object to read from and an object to
|
||||
write to.
|
||||
|
||||
>>> def getc(size, timeout=1):
|
||||
... return data or None
|
||||
...
|
||||
>>> def putc(data, timeout=1):
|
||||
... return size or None
|
||||
...
|
||||
>>> modem = XMODEM(getc, putc)
|
||||
|
||||
|
||||
:param getc: Function to retreive bytes from a stream
|
||||
:type getc: callable
|
||||
:param putc: Function to transmit bytes to a stream
|
||||
:type putc: callable
|
||||
:param mode: XMODEM protocol mode
|
||||
:type mode: string
|
||||
:param pad: Padding character to make the packets match the packet size
|
||||
:type pad: char
|
||||
|
||||
'''
|
||||
|
||||
# crctab calculated by Mark G. Mendel, Network Systems Corporation
|
||||
crctable = [
|
||||
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
|
||||
0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
|
||||
0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
|
||||
0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
|
||||
0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
|
||||
0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
|
||||
0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
|
||||
0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
|
||||
0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
|
||||
0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
|
||||
0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
|
||||
0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
|
||||
0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
|
||||
0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
|
||||
0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
|
||||
0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
|
||||
0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
|
||||
0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
|
||||
0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
|
||||
0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
|
||||
0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
|
||||
0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
|
||||
0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
|
||||
0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
|
||||
0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
|
||||
0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
|
||||
0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
|
||||
0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
|
||||
0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
|
||||
0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
|
||||
0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
|
||||
0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
|
||||
]
|
||||
|
||||
def __init__(self, getc, putc, mode='xmodem', pad=b'\x1a'):
|
||||
self.getc = getc
|
||||
self.putc = putc
|
||||
self.mode = mode
|
||||
self.pad = pad
|
||||
|
||||
def abort(self, count=2, timeout=60):
|
||||
'''
|
||||
Send an abort sequence using CAN bytes.
|
||||
'''
|
||||
for counter in range(0, count):
|
||||
self.putc(CAN, timeout)
|
||||
|
||||
def send(self, stream, retry=32, timeout=360, quiet=0, callback=None):
|
||||
'''
|
||||
Send a stream via the XMODEM protocol.
|
||||
|
||||
>>> stream = file('/etc/issue', 'rb')
|
||||
>>> print modem.send(stream)
|
||||
True
|
||||
|
||||
Returns ``True`` upon succesful transmission or ``False`` in case of
|
||||
failure.
|
||||
|
||||
:param stream: The stream object to send data from.
|
||||
:type stream: stream (file, etc.)
|
||||
:param retry: The maximum number of times to try to resend a failed
|
||||
packet before failing.
|
||||
:type retry: int
|
||||
:param timeout: The number of seconds to wait for a response before
|
||||
timing out.
|
||||
:type timeout: int
|
||||
:param quiet: If 0, it prints info to stderr. If 1, it does not print any info.
|
||||
:type quiet: int
|
||||
:param callback: Reference to a callback function that has the
|
||||
following signature. This is useful for
|
||||
getting status updates while a xmodem
|
||||
transfer is underway.
|
||||
Expected callback signature:
|
||||
def callback(total_packets, success_count, error_count)
|
||||
:type callback: callable
|
||||
'''
|
||||
|
||||
# initialize protocol
|
||||
try:
|
||||
packet_size = dict(
|
||||
xmodem = 128,
|
||||
xmodem1k = 1024,
|
||||
)[self.mode]
|
||||
except AttributeError:
|
||||
raise ValueError("An invalid mode was supplied")
|
||||
|
||||
error_count = 0
|
||||
crc_mode = 0
|
||||
cancel = 0
|
||||
while True:
|
||||
char = self.getc(1)
|
||||
if char:
|
||||
if char == NAK:
|
||||
crc_mode = 0
|
||||
break
|
||||
elif char == CRC:
|
||||
crc_mode = 1
|
||||
break
|
||||
elif char == CAN:
|
||||
if not quiet:
|
||||
print('received CAN', file=sys.stderr)
|
||||
if cancel:
|
||||
return False
|
||||
else:
|
||||
cancel = 1
|
||||
else:
|
||||
log.error('send ERROR expected NAK/CRC, got %s' % \
|
||||
(ord(char),))
|
||||
|
||||
error_count += 1
|
||||
if error_count >= retry:
|
||||
self.abort(timeout=timeout)
|
||||
return False
|
||||
|
||||
# send data
|
||||
error_count = 0
|
||||
success_count = 0
|
||||
total_packets = 0
|
||||
sequence = 1
|
||||
while True:
|
||||
data = stream.read(packet_size)
|
||||
if not data:
|
||||
log.info('sending EOT')
|
||||
# end of stream
|
||||
break
|
||||
total_packets += 1
|
||||
data = data.ljust(packet_size, self.pad)
|
||||
if crc_mode:
|
||||
crc = self.calc_crc(data)
|
||||
else:
|
||||
crc = self.calc_checksum(data)
|
||||
|
||||
# emit packet
|
||||
while True:
|
||||
if packet_size == 128:
|
||||
self.putc(SOH)
|
||||
else: # packet_size == 1024
|
||||
self.putc(STX)
|
||||
self.putc(bytes([sequence]))
|
||||
self.putc(bytes([0xff - sequence]))
|
||||
self.putc(data)
|
||||
if crc_mode:
|
||||
self.putc(bytes([crc >> 8]))
|
||||
self.putc(bytes([crc & 0xff]))
|
||||
else:
|
||||
self.putc(bytes([crc]))
|
||||
|
||||
char = self.getc(1, timeout)
|
||||
if char == ACK:
|
||||
success_count += 1
|
||||
if isinstance(callback, collections.Callable):
|
||||
callback(total_packets, success_count, error_count)
|
||||
break
|
||||
if char == NAK:
|
||||
error_count += 1
|
||||
if isinstance(callback, collections.Callable):
|
||||
callback(total_packets, success_count, error_count)
|
||||
if error_count >= retry:
|
||||
# excessive amounts of retransmissions requested,
|
||||
# abort transfer
|
||||
self.abort(timeout=timeout)
|
||||
log.warning('excessive NAKs, transfer aborted')
|
||||
return False
|
||||
|
||||
# return to loop and resend
|
||||
continue
|
||||
else:
|
||||
log.error('Not ACK, Not NAK')
|
||||
error_count += 1
|
||||
if isinstance(callback, collections.Callable):
|
||||
callback(total_packets, success_count, error_count)
|
||||
if error_count >= retry:
|
||||
# excessive amounts of retransmissions requested,
|
||||
# abort transfer
|
||||
self.abort(timeout=timeout)
|
||||
log.warning('excessive protocol errors, transfer aborted')
|
||||
return False
|
||||
|
||||
# return to loop and resend
|
||||
continue
|
||||
|
||||
# protocol error
|
||||
self.abort(timeout=timeout)
|
||||
log.error('protocol error')
|
||||
return False
|
||||
|
||||
# keep track of sequence
|
||||
sequence = (sequence + 1) % 0x100
|
||||
|
||||
while True:
|
||||
# end of transmission
|
||||
self.putc(EOT)
|
||||
|
||||
#An ACK should be returned
|
||||
char = self.getc(1, timeout)
|
||||
if char == ACK:
|
||||
break
|
||||
else:
|
||||
error_count += 1
|
||||
if error_count >= retry:
|
||||
self.abort(timeout=timeout)
|
||||
log.warning('EOT was not ACKd, transfer aborted')
|
||||
return False
|
||||
|
||||
return True
|
||||
|
||||
def recv(self, stream, crc_mode=1, retry=16, timeout=60, delay=1, quiet=0):
|
||||
'''
|
||||
Receive a stream via the XMODEM protocol.
|
||||
|
||||
>>> stream = file('/etc/issue', 'wb')
|
||||
>>> print modem.recv(stream)
|
||||
2342
|
||||
|
||||
Returns the number of bytes received on success or ``None`` in case of
|
||||
failure.
|
||||
'''
|
||||
|
||||
# initiate protocol
|
||||
error_count = 0
|
||||
char = 0
|
||||
cancel = 0
|
||||
while True:
|
||||
# first try CRC mode, if this fails,
|
||||
# fall back to checksum mode
|
||||
if error_count >= retry:
|
||||
self.abort(timeout=timeout)
|
||||
return None
|
||||
elif crc_mode and error_count < (retry / 2):
|
||||
if not self.putc(CRC):
|
||||
time.sleep(delay)
|
||||
error_count += 1
|
||||
else:
|
||||
crc_mode = 0
|
||||
if not self.putc(NAK):
|
||||
time.sleep(delay)
|
||||
error_count += 1
|
||||
|
||||
char = self.getc(1, timeout)
|
||||
if not char:
|
||||
error_count += 1
|
||||
continue
|
||||
elif char == SOH:
|
||||
#crc_mode = 0
|
||||
break
|
||||
elif char == STX:
|
||||
break
|
||||
elif char == CAN:
|
||||
if cancel:
|
||||
return None
|
||||
else:
|
||||
cancel = 1
|
||||
else:
|
||||
error_count += 1
|
||||
|
||||
# read data
|
||||
error_count = 0
|
||||
income_size = 0
|
||||
packet_size = 128
|
||||
sequence = 1
|
||||
cancel = 0
|
||||
while True:
|
||||
while True:
|
||||
if char == SOH:
|
||||
packet_size = 128
|
||||
break
|
||||
elif char == STX:
|
||||
packet_size = 1024
|
||||
break
|
||||
elif char == EOT:
|
||||
# We received an EOT, so send an ACK and return the received
|
||||
# data length
|
||||
self.putc(ACK)
|
||||
return income_size
|
||||
elif char == CAN:
|
||||
# cancel at two consecutive cancels
|
||||
if cancel:
|
||||
return None
|
||||
else:
|
||||
cancel = 1
|
||||
else:
|
||||
if not quiet:
|
||||
print('recv ERROR expected SOH/EOT, got', ord(char), file=sys.stderr)
|
||||
error_count += 1
|
||||
if error_count >= retry:
|
||||
self.abort()
|
||||
return None
|
||||
# read sequence
|
||||
error_count = 0
|
||||
cancel = 0
|
||||
seq1 = ord(self.getc(1))
|
||||
seq2 = 0xff - ord(self.getc(1))
|
||||
if seq1 == sequence and seq2 == sequence:
|
||||
# sequence is ok, read packet
|
||||
# packet_size + checksum
|
||||
data = self.getc(packet_size + 1 + crc_mode, timeout)
|
||||
if crc_mode:
|
||||
csum = (ord(data[-2]) << 8) + ord(data[-1])
|
||||
data = data[:-2]
|
||||
log.debug('CRC (%04x <> %04x)' % \
|
||||
(csum, self.calc_crc(data)))
|
||||
valid = csum == self.calc_crc(data)
|
||||
else:
|
||||
csum = data[-1]
|
||||
data = data[:-1]
|
||||
log.debug('checksum (checksum(%02x <> %02x)' % \
|
||||
(ord(csum), self.calc_checksum(data)))
|
||||
valid = ord(csum) == self.calc_checksum(data)
|
||||
|
||||
# valid data, append chunk
|
||||
if valid:
|
||||
income_size += len(data)
|
||||
stream.write(data)
|
||||
self.putc(ACK)
|
||||
sequence = (sequence + 1) % 0x100
|
||||
char = self.getc(1, timeout)
|
||||
continue
|
||||
else:
|
||||
# consume data
|
||||
self.getc(packet_size + 1 + crc_mode)
|
||||
self.debug('expecting sequence %d, got %d/%d' % \
|
||||
(sequence, seq1, seq2))
|
||||
|
||||
# something went wrong, request retransmission
|
||||
self.putc(NAK)
|
||||
|
||||
def calc_checksum(self, data, checksum=0):
|
||||
'''
|
||||
Calculate the checksum for a given block of data, can also be used to
|
||||
update a checksum.
|
||||
|
||||
>>> csum = modem.calc_checksum('hello')
|
||||
>>> csum = modem.calc_checksum('world', csum)
|
||||
>>> hex(csum)
|
||||
'0x3c'
|
||||
|
||||
'''
|
||||
return (sum(map(ord, data)) + checksum) % 256
|
||||
|
||||
def calc_crc(self, data, crc=0):
|
||||
'''
|
||||
Calculate the Cyclic Redundancy Check for a given block of data, can
|
||||
also be used to update a CRC.
|
||||
|
||||
>>> crc = modem.calc_crc('hello')
|
||||
>>> crc = modem.calc_crc('world', crc)
|
||||
>>> hex(crc)
|
||||
'0xd5e3'
|
||||
|
||||
'''
|
||||
for char in data:
|
||||
crc = (crc << 8) ^ self.crctable[((crc >> 8) ^ int(char)) & 0xff]
|
||||
return crc & 0xffff
|
||||
|
||||
|
||||
XMODEM1k = partial(XMODEM, mode='xmodem1k')
|
||||
|
||||
|
||||
def run():
|
||||
import optparse
|
||||
import subprocess
|
||||
|
||||
parser = optparse.OptionParser(usage='%prog [<options>] <send|recv> filename filename')
|
||||
parser.add_option('-m', '--mode', default='xmodem',
|
||||
help='XMODEM mode (xmodem, xmodem1k)')
|
||||
|
||||
options, args = parser.parse_args()
|
||||
if len(args) != 3:
|
||||
parser.error('invalid arguments')
|
||||
return 1
|
||||
|
||||
elif args[0] not in ('send', 'recv'):
|
||||
parser.error('invalid mode')
|
||||
return 1
|
||||
|
||||
def _func(so, si):
|
||||
import select
|
||||
import subprocess
|
||||
|
||||
print('si', si)
|
||||
print('so', so)
|
||||
|
||||
def getc(size, timeout=3):
|
||||
w,t,f = select.select([so], [], [], timeout)
|
||||
if w:
|
||||
data = so.read(size)
|
||||
else:
|
||||
data = None
|
||||
|
||||
print('getc(', repr(data), ')')
|
||||
return data
|
||||
|
||||
def putc(data, timeout=3):
|
||||
w,t,f = select.select([], [si], [], timeout)
|
||||
if t:
|
||||
si.write(data)
|
||||
si.flush()
|
||||
size = len(data)
|
||||
else:
|
||||
size = None
|
||||
|
||||
print('putc(', repr(data), repr(size), ')')
|
||||
return size
|
||||
|
||||
return getc, putc
|
||||
|
||||
def _pipe(*command):
|
||||
pipe = subprocess.Popen(command,
|
||||
stdout=subprocess.PIPE, stdin=subprocess.PIPE)
|
||||
return pipe.stdout, pipe.stdin
|
||||
|
||||
if args[0] == 'recv':
|
||||
import io
|
||||
getc, putc = _func(*_pipe('sz', '--xmodem', args[2]))
|
||||
stream = open(args[1], 'wb')
|
||||
xmodem = XMODEM(getc, putc, mode=options.mode)
|
||||
status = xmodem.recv(stream, retry=8)
|
||||
stream.close()
|
||||
|
||||
elif args[0] == 'send':
|
||||
getc, putc = _func(*_pipe('rz', '--xmodem', args[2]))
|
||||
stream = open(args[1], 'rb')
|
||||
xmodem = XMODEM(getc, putc, mode=options.mode)
|
||||
status = xmodem.send(stream, retry=8)
|
||||
stream.close()
|
||||
|
||||
if __name__ == '__main__':
|
||||
sys.exit(run())
|
||||
Loading…
Reference in New Issue
Block a user