/
svc_power_mode_changes.py
executable file
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/
svc_power_mode_changes.py
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#!/usr/bin/env python2
from __future__ import print_function
from collections import OrderedDict
from subprocess import call, check_call
from time import sleep, strftime
import fdpexpect
import pxssh
import sys
import argparse
import serial
T1_CMD = '/root/loopback_test %s %s 1000 /sys/bus/greybus/devices/endo0:1:1:1:13/ /dev/gb/loopback0'
T2_CMD = '/root/loopback_test sink 512 1000 /sys/bus/greybus/devices/endo0:1:2:1:13/ /dev/gb/loopback1'
APB_CMD = 'gbl -t %s -s %s -w 10 -n 1000 start'
# default IP of the AP
HOST = '192.168.3.2'
USER = 'root'
SVC_DEFAULT_BAUD = 115200
PWRM_TO_CMDS = (
('PWM-G1, 1 lane', ['svc linktest -p 0 -m pwm -g 1 -s a -l 1',
'svc linktest -p 1 -m pwm -g 1 -s a -l 1']),
('PWM-G2, 1 lane', ['svc linktest -p 0 -m pwm -g 2 -s a -l 1',
'svc linktest -p 1 -m pwm -g 2 -s a -l 1']),
('PWM-G3, 1 lane', ['svc linktest -p 0 -m pwm -g 3 -s a -l 1',
'svc linktest -p 1 -m pwm -g 3 -s a -l 1']),
('PWM-G4, 1 lane', ['svc linktest -p 0 -m pwm -g 4 -s a -l 1',
'svc linktest -p 1 -m pwm -g 4 -s a -l 1']),
('PWM-G1, 2 lanes', ['svc linktest -p 0 -m pwm -g 1 -s a -l 2',
'svc linktest -p 1 -m pwm -g 1 -s a -l 2']),
('PWM-G2, 2 lanes', ['svc linktest -p 0 -m pwm -g 2 -s a -l 2',
'svc linktest -p 1 -m pwm -g 2 -s a -l 2']),
('PWM-G3, 2 lanes', ['svc linktest -p 0 -m pwm -g 3 -s a -l 2',
'svc linktest -p 1 -m pwm -g 3 -s a -l 2']),
('PWM-G4, 2 lanes', ['svc linktest -p 0 -m pwm -g 4 -s a -l 2',
'svc linktest -p 1 -m pwm -g 4 -s a -l 2']),
('HS-G1A, 1 lane', ['svc linktest -p 0 -m hs -g 1 -s a -l 1',
'svc linktest -p 1 -m hs -g 1 -s a -l 1']),
('HS-G2A, 1 lane', ['svc linktest -p 0 -m hs -g 2 -s a -l 1',
'svc linktest -p 1 -m hs -g 2 -s a -l 1']),
('HS-G1A, 2 lanes', ['svc linktest -p 0 -m hs -g 1 -s a -l 2',
'svc linktest -p 1 -m hs -g 1 -s a -l 2']),
('HS-G2A, 2 lanes', ['svc linktest -p 0 -m hs -g 2 -s a -l 2',
'svc linktest -p 1 -m hs -g 2 -s a -l 2']),
('HS-G1B, 1 lane', ['svc linktest -p 0 -m pwm -g 1 -s a -l 1',
'svc linktest -p 1 -m pwm -g 1 -s a -l 1',
'svc linktest -p 0 -m pwm -g 1 -s b -l 1',
'svc linktest -p 1 -m pwm -g 1 -s b -l 1',
'svc linktest -p 0 -m hs -g 1 -s b -l 1',
'svc linktest -p 1 -m hs -g 1 -s b -l 1']),
('HS-G2B, 1 lane', ['svc linktest -p 0 -m pwm -g 1 -s a -l 1',
'svc linktest -p 1 -m pwm -g 1 -s a -l 1',
'svc linktest -p 0 -m pwm -g 1 -s b -l 1',
'svc linktest -p 1 -m pwm -g 1 -s b -l 1',
'svc linktest -p 0 -m hs -g 2 -s b -l 1',
'svc linktest -p 1 -m hs -g 2 -s b -l 1']),
('HS-G1B, 2 lanes', ['svc linktest -p 0 -m pwm -g 1 -s a -l 2',
'svc linktest -p 1 -m pwm -g 1 -s a -l 2',
'svc linktest -p 0 -m pwm -g 1 -s b -l 2',
'svc linktest -p 1 -m pwm -g 1 -s b -l 2',
'svc linktest -p 0 -m hs -g 1 -s b -l 2',
'svc linktest -p 1 -m hs -g 1 -s b -l 2']),
('HS-G2B, 2 lanes', ['svc linktest -p 0 -m pwm -g 1 -s a -l 2',
'svc linktest -p 1 -m pwm -g 1 -s a -l 2',
'svc linktest -p 0 -m pwm -g 1 -s b -l 2',
'svc linktest -p 1 -m pwm -g 1 -s b -l 2',
'svc linktest -p 0 -m hs -g 2 -s b -l 2',
'svc linktest -p 1 -m hs -g 2 -s b -l 2']))
#
# UI
#
def info(*args, **kwargs):
kwargs['file'] = sys.stdout
print(*args, **kwargs)
def err(*args, **kwargs):
kwargs['file'] = sys.stderr
args = ('error:',) + args
print(*args, **kwargs)
def fatal_err(*args, **kwargs):
err(*args, **kwargs)
sys.exit(1)
def svc_io(*args, **kwargs):
args = ('<SVC>:',) + args
info(*args, **kwargs)
#
# Command handling
#
def gbl_status(f):
f.sendline('gbl status')
f.expect('REQ_PER_SEQ')
f.expect('nsh>')
#print(f.before)
return f.before.split()
def gbl_stats(f, cmd):
f.sendline('gbl stop')
f.expect('nsh>')
print(f.before.strip())
# split the cmd otherwise, nuttx is missing some
# characters
for c in cmd.split():
f.send(c + ' ')
f.sendline()
f.expect('nsh>')
print(f.before.strip())
# Wait until completion 'ACTIVE = no'
while True:
st = gbl_status(f)
# print(st)
if st[1] == 'no':
# print(st)
break
else:
sleep(1)
f.sendline('gbl -f csv status')
print(f.readline().strip())
f.readline()
f.readline()
f.expect('nsh>')
print(f.before.strip())
return f.before.strip()
def wait_for_ret_or_abort():
try:
while True:
c = sys.stdin.read(1)
info('mbolivar:', ord(c))
if c == '\r' or c == '\n':
return
except KeyboardInterrupt:
sys.exit(0)
def exec_cmd(svc, cmd):
nsh_prompt = 'nsh> '
buf = []
try:
svc.write(''.join(buf) + cmd + '\n')
while True:
if svc.inWaiting():
c = svc.read()
buf.append(c)
if c == '\n':
svc_io(''.join(buf), end='')
buf = []
if len(buf) >= len(nsh_prompt) and ''.join(buf) == nsh_prompt:
return # got nsh> prompt
except IOError as e:
fatal_err("couldn't set power mode:", str(e))
def exec_loopback(s, cmd):
# check_call(['ssh', rhost, cmd])
s.sendline(cmd) # run a command
s.prompt() # match the prompt
print(s.before) # print everything before the prompt.
def run_from_ap(svc, host, test, size, verbose):
ssh_host = '%s@%s' % (USER, host)
csv_path = '/%s/%s_%s_1000.csv' % (USER, test, size)
csv_url = '%s:%s' % (ssh_host, csv_path)
ap_test_cmd = T1_CMD % (test, size)
info(ssh_host, csv_path, csv_url, test, size, ap_test_cmd)
print('Erase previous CSV file (%s)' % csv_path)
s = pxssh.pxssh()
s.login(host, USER)
s.sendline('rm %s' % csv_path) # run a command
s.prompt() # match the prompt
print(s.before) # print everything before the prompt.
# call(['ssh', ssh_host, 'rm %s' % csv_path])
count = 1
try:
for pwrm, cmds in PWRM_TO_CMDS:
print('\nTest (%d) - ' % count + pwrm + '\n')
for cmd in cmds:
exec_cmd(svc, cmd)
if verbose:
# insert the test name into the CSV file
# TODO: add a new column into the CSV instead of new row
call(['ssh', ssh_host, 'echo "%s" >> %s' % (pwrm, csv_path)])
exec_loopback(s, ap_test_cmd)
exec_loopback(s, ap_test_cmd)
exec_loopback(s, ap_test_cmd)
count += 1
except KeyboardInterrupt:
info('\nKeyboardInterrupt')
# transfer the results CSV file to from AP to Host
call(['scp', csv_url, '.'])
s.logout()
def run_from_apbridge(svc, host, test, size, verbose, apb):
csv_path = 'apb_%s_%s_1000.csv' % (test, size)
# gbl is using a slightly different name
apb_test_cmd = APB_CMD % (test.replace('transfer', 'xfer'), size)
info(csv_path, test, size, apb_test_cmd)
f = fdpexpect.fdspawn(apb.fd, timeout=5)
print('Create CSV file (%s)' % csv_path)
with open(csv_path, "w") as fd:
count = 1
try:
for pwrm, cmds in PWRM_TO_CMDS:
print('\nTest (%d) - ' % count + pwrm + '\n')
for cmd in cmds:
exec_cmd(svc, cmd)
if verbose:
# insert the test name into the CSV file
# TODO: add a new column into the CSV instead of new row
call(['ssh', ssh_host, 'echo "%s" >> %s' % (pwrm, csv_path)])
fd.write('%s,%s,%s,%s\n' % (strftime("%c"), test, size, gbl_stats(f, apb_test_cmd)))
fd.write('%s,%s,%s,%s\n' % (strftime("%c"), test, size, gbl_stats(f, apb_test_cmd)))
fd.write('%s,%s,%s,%s\n' % (strftime("%c"), test, size, gbl_stats(f, apb_test_cmd)))
count += 1
except KeyboardInterrupt:
info('\nKeyboardInterrupt')
#
# main
#
def main():
# Parse arguments.
parser = argparse.ArgumentParser()
parser.add_argument('-b', '--baudrate',
default=SVC_DEFAULT_BAUD,
help='baud rate of SVC/APB tty, default {}'.format(
SVC_DEFAULT_BAUD))
parser.add_argument('svc', help='Path to SVC console tty')
parser.add_argument('host', help='IP/hostname of target AP', default=HOST)
parser.add_argument('apb', help='apbridge1 tty', default=None)
parser.add_argument('-s', '--size', default=512, help='Packet Size')
parser.add_argument('-t', '--test', default='sink', choices=['sink', 'transfer', 'ping'], help='Test type')
parser.add_argument('-v', '--verbose', action='store_true', help='Add extra info in CSV')
parser.add_argument('--ap', action='store_true', help='Run test from AP instead of APBridge')
args = parser.parse_args()
# Open the SVC console tty and flush any input characters.
info('opening SVC at: {}, {} baud'.format(args.svc, args.baudrate))
info('AP host: %s' % args.host)
try:
svc = serial.Serial(port=args.svc, baudrate=args.baudrate)
apb = serial.Serial(port=args.apb, baudrate=args.baudrate)
except:
fatal_err('failed to open SVC')
try:
svc.flushInput()
info('flushed SVC input buffer')
except:
fatal_err("couldn't flush SVC input buffer")
# Execute the above-defined power mode changes at the SVC
# console.
if args.ap:
run_from_ap(svc, args.host, args.test, args.size, args.verbose)
else:
run_from_apbridge(svc, args.host, args.test, args.size, args.verbose, apb)
if __name__ == '__main__':
main()