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#!/usr/bin/python
# Copyright 2016 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from __future__ import print_function
import argparse
import errno
import os
import subprocess
import time
import json
import fw_update
import ecusb.tiny_servo_common as c
def flash(brdfile, serialno, binfile):
p = fw_update.Supdate()
p.load_board(brdfile)
p.connect_usb(serialname=serialno)
p.load_file(binfile)
# Start transfer and erase.
p.start()
# Upload the bin file
print("Uploading %s" % binfile)
p.write_file()
# Finalize
print("Done. Finalizing.")
p.stop()
def select(vidpid, serialno, region, debuglog=False):
if region not in ["rw", "ro"]:
raise Exception("Region must be ro or rw")
# Make sure device is up
c.wait_for_usb(vidpid, serialname=serialno)
# make a console
pty = c.setup_tinyservod(vidpid, 0, serialname=serialno, debuglog=debuglog)
cmd = "sysjump %s\nreboot" % region
pty._issue_cmd(cmd)
time.sleep(1)
pty.close()
def main():
parser = argparse.ArgumentParser(description="Image a servo micro device")
parser.add_argument('-s', '--serialno', type=str,
help="serial number to program", default=None)
parser.add_argument('-b', '--board', type=str,
help="Board configuration json file", default="servo_v4.json")
parser.add_argument('-f', '--file', type=str,
help="Complete ec.bin file", default="servo_v4.bin")
parser.add_argument('-v', '--verbose', action="store_true",
help="Chatty output")
args = parser.parse_args()
brdfile = args.board
binfile = args.file
serialno = args.serialno
debuglog = (args.verbose is True)
with open(brdfile) as data_file:
data = json.load(data_file)
vidpid = "%04x:%04x" % (int(data['vid'], 0), int(data['pid'], 0))
select(vidpid, serialno, "ro", debuglog=debuglog)
flash(brdfile, serialno, binfile)
select(vidpid, serialno, "rw", debuglog=debuglog)
flash(brdfile, serialno, binfile)
if __name__ == "__main__":
main()
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