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#!/usr/bin/env python
# Copyright 2017 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.
#
# Ignore indention messages, since legacy scripts use 2 spaces instead of 4.
# pylint: disable=bad-indentation,docstring-section-indent
# pylint: disable=docstring-trailing-quotes
"""Script to control tigertail USB-C Mux board."""
# Note: This is a py2/3 compatible file.
import argparse
import sys
import time
import ecusb.tiny_servo_common as c
STM_VIDPID = '18d1:5027'
serialno = 'Uninitialized'
def do_mux(mux, pty):
"""Set mux via ec console 'pty'.
Args:
mux: mux to connect to DUT, 'A', 'B', or 'off'
pty: a pty object connected to tigertail
Commands are:
# > mux A
# TYPE-C mux is A
"""
validmux = ['A', 'B', 'off']
if mux not in validmux:
c.log('Mux setting %s invalid, try one of %s' % (mux, validmux))
return False
cmd = '\r\nmux %s\r\n' % mux
regex = 'TYPE\-C mux is ([^\s\r\n]*)\r'
results = pty._issue_cmd_get_results(cmd, [regex])[0]
result = results[1].strip().strip('\n\r')
if result != mux:
c.log('Mux set to %s but saved as %s.' % (mux, result))
return False
c.log('Mux set to %s' % result)
return True
def do_version(pty):
"""Check version via ec console 'pty'.
Args:
pty: a pty object connected to tigertail
Commands are:
# > version
# Chip: stm stm32f07x
# Board: 0
# RO: tigertail_v1.1.6749-74d1a312e
# RW: tigertail_v1.1.6749-74d1a312e
# Build: tigertail_v1.1.6749-74d1a312e
# 2017-07-25 20:08:34 nsanders@meatball.mtv.corp.google.com
"""
cmd = '\r\nversion\r\n'
regex = 'RO:\s+(\S+)\s+RW:\s+(\S+)\s+Build:\s+(\S+)\s+' \
'(\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d) (\S+)'
results = pty._issue_cmd_get_results(cmd, [regex])[0]
c.log('Version is %s' % results[3])
c.log('RO: %s' % results[1])
c.log('RW: %s' % results[2])
c.log('Date: %s' % results[4])
c.log('Src: %s' % results[5])
return True
def do_check_serial(pty):
"""Check serial via ec console 'pty'.
Args:
pty: a pty object connected to tigertail
Commands are:
# > serialno
# Serial number: number
"""
cmd = '\r\nserialno\r\n'
regex = 'Serial number: ([^\n\r]+)'
results = pty._issue_cmd_get_results(cmd, [regex])[0]
c.log('Serial is %s' % results[1])
return True
def do_power(count, bus, pty):
"""Check power usage via ec console 'pty'.
Args:
count: number of samples to capture
bus: rail to monitor, 'vbus', 'cc1', or 'cc2'
pty: a pty object connected to tigertail
Commands are:
# > ina 0
# Configuration: 4127
# Shunt voltage: 02c4 => 1770 uV
# Bus voltage : 1008 => 5130 mV
# Power : 0019 => 625 mW
# Current : 0082 => 130 mA
# Calibration : 0155
# Mask/Enable : 0008
# Alert limit : 0000
"""
if bus == 'vbus':
ina = 0
if bus == 'cc1':
ina = 4
if bus == 'cc2':
ina = 1
start = time.time()
c.log('time,\tmV,\tmW,\tmA')
cmd = '\r\nina %s\r\n' % ina
regex = 'Bus voltage : \S+ \S+ (\d+) mV\s+' \
'Power : \S+ \S+ (\d+) mW\s+' \
'Current : \S+ \S+ (\d+) mA'
for i in range(0, count):
results = pty._issue_cmd_get_results(cmd, [regex])[0]
c.log('%.2f,\t%s,\t%s\t%s' % (time.time() - start,
results[1], results[2], results[3]))
return True
def do_reboot(pty):
"""Reboot via ec console pty
Args:
pty: a pty object connected to tigertail
Command is: reboot.
"""
cmd = '\r\nreboot\r\n'
regex = 'Rebooting'
try:
results = pty._issue_cmd_get_results(cmd, [regex])[0]
time.sleep(1)
c.log(results)
except Exception as e:
c.log(e)
return False
return True
def do_sysjump(region, pty):
"""Set region via ec console 'pty'.
Args:
region: ec code region to execute, 'ro' or 'rw'
pty: a pty object connected to tigertail
Commands are:
# > sysjump rw
"""
validregion = ['ro', 'rw']
if region not in validregion:
c.log('Region setting %s invalid, try one of %s' % (
region, validregion))
return False
cmd = '\r\nsysjump %s\r\n' % region
try:
pty._issue_cmd(cmd)
time.sleep(1)
except Exception as e:
c.log(e)
return False
c.log('Region requested %s' % region)
return True
def get_parser():
parser = argparse.ArgumentParser(
description=__doc__)
parser.add_argument('-s', '--serialno', type=str, default=None,
help='serial number of board to use')
parser.add_argument('-b', '--bus', type=str, default='vbus',
help='Which rail to log: [vbus|cc1|cc2]')
group = parser.add_mutually_exclusive_group()
group.add_argument('--setserialno', type=str, default=None,
help='serial number to set on the board.')
group.add_argument('--check_serial', action='store_true',
help='check serial number set on the board.')
group.add_argument('-m', '--mux', type=str, default=None,
help='mux selection')
group.add_argument('-p', '--power', action='store_true',
help='check VBUS')
group.add_argument('-l', '--powerlog', type=int, default=None,
help='log VBUS')
group.add_argument('-r', '--sysjump', type=str, default=None,
help='region selection')
group.add_argument('--reboot', action='store_true',
help='reboot tigertail')
group.add_argument('--check_version', action='store_true',
help='check tigertail version')
return parser
def main(argv):
parser = get_parser()
opts = parser.parse_args(argv)
result = True
# Let's make sure there's a tigertail
# If nothing found in 5 seconds, fail.
c.wait_for_usb(STM_VIDPID, timeout=5., serialname=opts.serialno)
pty = c.setup_tinyservod(STM_VIDPID, 0, serialname=opts.serialno)
if opts.bus not in ('vbus', 'cc1', 'cc2'):
c.log('Try --bus [vbus|cc1|cc2]')
result = False
elif opts.setserialno:
try:
c.do_serialno(opts.setserialno, pty)
except Exception:
result = False
elif opts.mux:
result &= do_mux(opts.mux, pty)
elif opts.sysjump:
result &= do_sysjump(opts.sysjump, pty)
elif opts.reboot:
result &= do_reboot(pty)
elif opts.check_version:
result &= do_version(pty)
elif opts.check_serial:
result &= do_check_serial(pty)
elif opts.power:
result &= do_power(1, opts.bus, pty)
elif opts.powerlog:
result &= do_power(opts.powerlog, opts.bus, pty)
if result:
c.log('PASS')
else:
c.log('FAIL')
exit(-1)
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
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