configure_cots_bandrich_ue.py 7.76 KB
Newer Older
1
#!/usr/bin/python 
Rohit Gupta's avatar
Rohit Gupta committed
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
#******************************************************************************

#    OpenAirInterface 
#    Copyright(c) 1999 - 2014 Eurecom

#    OpenAirInterface 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.


#    OpenAirInterface 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 OpenAirInterface.The full GNU General Public License is 
#   included in this distribution in the file called "COPYING". If not, 
#   see <http://www.gnu.org/licenses/>.

#  Contact Information
#  OpenAirInterface Admin: openair_admin@eurecom.fr
#  OpenAirInterface Tech : openair_tech@eurecom.fr
#  OpenAirInterface Dev  : openair4g-devel@lists.eurecom.fr
  
#  Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE

# *******************************************************************************/
# \author Navid Nikaein, Rohit Gupta
32

33 34 35 36 37 38 39 40 41
import time
import serial
import os
from pyroute2 import IPRoute
import sys
import re
import threading
import signal
import traceback
42
import os
43
import commands
44 45

# configure the serial connections (the parameters differs on the device you are connecting to)
46 47
#First we find an open port to work with
serial_port=''
48
ser=serial.Serial()
Rohit Gupta's avatar
Rohit Gupta committed
49 50 51 52 53
openair_dir = os.environ.get('OPENAIR_DIR')
if openair_dir == None:
  print "Error getting OPENAIR_DIR environment variable"
  sys.exit(1)

54 55 56 57
sys.path.append(os.path.expandvars('$OPENAIR_DIR/cmake_targets/autotests/tools/'))

from lib_autotest import *

58 59
def find_open_port():
   global serial_port, ser
60
   max_ports=100
61
   serial_port=''
62 63 64 65 66 67 68 69 70 71 72 73 74 75 76
   while True:
     if os.path.exists(serial_port) == True:
       return serial_port
     for port in range(2,100):
        serial_port_tmp = '/dev/ttyUSB'+str(port)
        if os.path.exists(serial_port_tmp) == True:
           print 'New Serial Port : ' + serial_port_tmp
           serial_port = serial_port_tmp
           break
     if serial_port == '':
        print" Not able to detect valid serial ports. Resetting the modem now..."
        reset_ue()
     else :
        ser = serial.Serial(port=serial_port)
        return
77

78 79
    
#serial_port = '/dev/ttyUSB2'
Rohit Gupta's avatar
Rohit Gupta committed
80
bandrich_ppd_config = os.environ.get('OPENAIR_DIR') + '/cmake_targets/autotests/tools/wdial.bandrich.conf'
81 82 83 84 85 86 87 88 89 90 91 92 93

exit_flag=0

def signal_handler(signal, frame):
        print('You pressed Ctrl+C!')
        print('Resetting the UE to detached state')
        timeout=10
        exit_flag=1
        send_command('AT+CGATT=0' , 'OK' , timeout)
        sys.exit(0)

signal.signal(signal.SIGINT, signal_handler)

94

95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121

#ser.open()
#ser.isOpen()

class pppThread (threading.Thread):
    def __init__(self, threadID, name, counter):
        threading.Thread.__init__(self)
        self.threadID = threadID
        self.name = name
        self.counter = counter
    def run(self):
        print "Starting " + self.name
        #Here we keep running pppd thread in indefinite loop as this script terminates sometimes
        #while 1:
        while 1:
           time.sleep(5) #Hard coded, do not reduce this number! 
           print "Starting wvdial now..."
           print 'exit_flag = ' + str(exit_flag)
           send_command('AT+CGATT=1','OK', 300)
           os.system('wvdial -C ' + bandrich_ppd_config + '' )
           if exit_flag == 1:
              print "Exit flag set to true. Exiting pppThread now"
           print "Terminating wvdial now..."

def send_command (cmd, response, timeout):
   count=0
   sleep_duration = 1
Rohit Gupta's avatar
Rohit Gupta committed
122
   print 'In function: send_command: cmd = <' + cmd + '> response: <' + response + '> \n'
123
   global serial_port, ser
124
   while count <= timeout:
Rohit Gupta's avatar
Rohit Gupta committed
125
      try:
126 127 128
        #Sometimes the port does not exist coz of reset in modem.
        #In that case, we need to search for this port again
        if os.path.exists(serial_port) == False:
129
            find_open_port()
Rohit Gupta's avatar
Rohit Gupta committed
130 131 132 133 134 135 136 137 138 139 140 141 142 143
        ser.write (cmd + '\r\n')
        out = ''
        time.sleep(sleep_duration)
        count = count + sleep_duration
        while ser.inWaiting() > 0:
            out += ser.read(1)
        print 'out = <' + out + '> response = <' + response + '> \n'
        if re.search(response, out):
          break
      except Exception, e:
        error = ' cmd : ' + cmd + ' response : ' + response
        error = error + ' In function: ' + sys._getframe().f_code.co_name + ': *** Caught exception: '  + str(e.__class__) + " : " + str( e)
        error = error + traceback.format_exc()
        print error
144 145 146 147 148 149
        

def start_ue () :
   #print 'Enter your commands below.\r\nInsert "exit" to leave the application.'
   timeout=60 #timeout in seconds
   send_command('AT', 'OK' , timeout)
150
   send_command('AT+CFUN=1' , 'OK' , timeout)
Rohit Gupta's avatar
Rohit Gupta committed
151
   #send_command('AT+CGATT=0' , 'OK' , timeout)
152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167
   send_command('AT+CGATT=1','OK', 300)
   #os.system('wvdial -C ' + bandrich_ppd_config + ' &' )
   
   thread_ppp = pppThread(1, "ppp_thread", 1)
   thread_ppp.start()

   iface='ppp0'
   
   while 1:
     time.sleep ( 2)
     #Now we check if ppp0 interface is up and running
     try:
        if exit_flag == 1:
          break
        ip = IPRoute()
        idx = ip.link_lookup(ifname=iface)[0]
168
        os.system ('route add ' + gw + ' ppp0')
Rohit Gupta's avatar
Rohit Gupta committed
169
        os.system('sleep 5')
170
        os.system ('ping ' + gw)
171 172 173 174 175 176 177 178 179 180 181 182 183
        break
     except Exception, e:
        error = ' Interface ' + iface + 'does not exist...'
        error = error + ' In function: ' + sys._getframe().f_code.co_name + ': *** Caught exception: '  + str(e.__class__) + " : " + str( e)
        error = error + traceback.format_exc()
        print error
    
   thread_ppp.join()

def stop_ue():
   timeout=60
   os.system('killall wvdial')
   send_command('AT', 'OK' , timeout)
Rohit Gupta's avatar
Rohit Gupta committed
184
   send_command('AT+CGATT=0' , 'OK|ERROR' , timeout)
185
   send_command('AT+CFUN=4' , 'OK' , timeout)
186

187 188 189 190 191 192 193 194 195 196 197 198 199 200 201

#reset the USB BUS of Bandrich UE
def reset_ue():
  stringIdBandrich='BandRich, Inc. 4G LTE adapter'
  status, out = commands.getstatusoutput('lsusb | grep -i \'' + stringIdBandrich + '\'')
  if (out == '') :
     print "Bandrich 4G LTE Adapter not found. Exiting now..."
     sys.exit()
  p=re.compile('Bus\s*(\w+)\s*Device\s*(\w+):\s*ID\s*(\w+):(\w+)')
  res=p.findall(out)
  BusId=res[0][0]
  DeviceId=res[0][1]
  VendorId=res[0][2]
  ProductId=res[0][3]
  usb_dir= find_usb_path(VendorId, ProductId)
202
  print "Bandrich 4G LTE Adapter found in..." + usb_dir
203
  print "Sleeping now for 45 seconds...please wait..."
204
  cmd = "sudo sh -c \"echo 0 > " + usb_dir + "/authorized\""
Rohit Gupta's avatar
Rohit Gupta committed
205
  os.system(cmd + " ; sleep 15" )
206
  cmd = "sudo sh -c \"echo 1 > " + usb_dir + "/authorized\""
Rohit Gupta's avatar
Rohit Gupta committed
207
  os.system(cmd + " ; sleep 30" )
208
  stop_ue()
209

210 211 212 213
i=1
gw='192.172.0.1'
while i <  len(sys.argv):
    arg=sys.argv[i]
214
    if arg == '--start-ue' :
215 216
        find_open_port()
        print 'Using Serial port : ' + serial_port  
217 218
        start_ue()
    elif arg == '--stop-ue' :
219 220
        find_open_port()
        print 'Using Serial port : ' + serial_port  
221
        stop_ue()
222 223
    elif arg == '--reset-ue' :
        reset_ue()
224 225 226 227 228 229 230 231
    elif arg == '-gw' :
        gw = sys.argv[i+1]
        i=i+1
    elif arg == '-h' :
        print "--reset-ue:  Reset the UE on USB Bus. Similar to unplugging and plugging the UE"
        print "--stop-ue:  Stop the UE. Send DETACH command" 
        print "--start-ue:  Start the UE. Send ATTACH command"
        print "-gw:  Specify the default gw as sometimes the gateway/route arguments are not set properly via wvdial"
232 233 234
    else :
        print " Script called with wrong arguments, arg = " + arg
        sys.exit()
235
    i = i +1
236 237