sdr
/
gr-gsm
8
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge branch 'petterreinholdtsen-reuse-scanner' into packaging

This commit is contained in:
Piotr Krysik 2017-08-26 11:00:31 +02:00
parent cd398e794c 8a771785ca
commit f77c9afb1f
1 changed files with 62 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

110
apps/grgsm_scanner
View File

@ -291,49 +291,16 @@ class channel_info(object):
return "ARFCN: %4u, Freq: %6.1fM, CID: %5u, LAC: %5u, MCC: %3u, MNC: %3u, Pwr: %3i" % (
self.arfcn, self.freq / 1e6, self.cid, self.lac, self.mcc, self.mnc, self.power)
if __name__ == '__main__':
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
bands_list = ", ".join(grgsm.arfcn.get_bands())
parser.add_option("-b", "--band", dest="band", default="P-GSM",
help="Specify the GSM band for the frequency.\nAvailable bands are: " + bands_list)
parser.add_option("-s", "--samp-rate", dest="samp_rate", type="float", default=2e6,
help="Set sample rate [default=%default] - allowed values even_number*0.2e6")
parser.add_option("-p", "--ppm", dest="ppm", type="intx", default=0,
help="Set frequency correction in ppm [default=%default]")
parser.add_option("-g", "--gain", dest="gain", type="eng_float", default=24.0,
help="Set gain [default=%default]")
parser.add_option("", "--args", dest="args", type="string", default="",
help="Set device arguments [default=%default]")
parser.add_option("--speed", dest="speed", type="intx", default=4,
help="Scan speed [default=%default]. Value range 0-5.")
parser.add_option("-v", "--verbose", action="store_true",
help="If set, verbose information output is printed: ccch configuration, cell ARFCN's, neighbour ARFCN's")
"""
Dont forget: sudo sysctl kernel.shmmni=32000
"""
(options, args) = parser.parse_args()
if options.band not in grgsm.arfcn.get_bands():
parser.error("Invalid GSM band\n")
if options.speed < 0 or options.speed > 5:
parser.error("Invalid scan speed.\n")
if (options.samp_rate / 0.2e6) % 2 != 0:
parser.error("Invalid sample rate. Sample rate must be an even numer * 0.2e6")
channels_num = int(options.samp_rate / 0.2e6)
print ""
for arfcn_range in grgsm.arfcn.get_arfcn_ranges(options.band):
def do_scan(samp_rate, band, speed, ppm, gain, args, prn = None):
signallist = []
channels_num = int(samp_rate / 0.2e6)
for arfcn_range in grgsm.arfcn.get_arfcn_ranges(band):
first_arfcn = arfcn_range[0]
last_arfcn = arfcn_range[1]
last_center_arfcn = last_arfcn - int((channels_num / 2) - 1)
current_freq = grgsm.arfcn.arfcn2downlink(first_arfcn + int(channels_num / 2) - 1, options.band)
last_freq = grgsm.arfcn.arfcn2downlink(last_center_arfcn, options.band)
current_freq = grgsm.arfcn.arfcn2downlink(first_arfcn + int(channels_num / 2) - 1, band)
last_freq = grgsm.arfcn.arfcn2downlink(last_center_arfcn, band)
stop_freq = last_freq + 0.2e6 * channels_num
while current_freq < stop_freq:
@ -348,10 +315,10 @@ if __name__ == '__main__':
os.dup2(null_fds[1], 2)
# instantiate scanner and processor
scanner = wideband_scanner(rec_len=6 - options.speed,
sample_rate=options.samp_rate,
scanner = wideband_scanner(rec_len=6 - speed,
sample_rate=samp_rate,
carrier_frequency=current_freq,
ppm=options.ppm, gain=options.gain, args=options.args)
ppm=ppm, gain=gain, args=args)
# start recording
scanner.start()
@ -379,7 +346,7 @@ if __name__ == '__main__':
cell_arfcn_list = scanner.gsm_extract_system_info.get_cell_arfcns(chans[i])
neighbour_list = scanner.gsm_extract_system_info.get_neighbours(chans[i])
info = channel_info(grgsm.arfcn.downlink2arfcn(found_freqs[i], options.band), found_freqs[i],
info = channel_info(grgsm.arfcn.downlink2arfcn(found_freqs[i], band), found_freqs[i],
cell_ids[i], lacs[i], mccs[i], mncs[i], ccch_confs[i], powers[i],
neighbour_list, cell_arfcn_list)
found_list.append(info)
@ -392,10 +359,57 @@ if __name__ == '__main__':
# close the temporary fds
os.close(null_fds[0])
os.close(null_fds[1])
for info in sorted(found_list):
print info
if options.verbose:
print info.get_verbose_info()
if prn:
prn(found_list)
signallist.extend(found_list)
current_freq += channels_num * 0.2e6
return signallist
def argument_parser():
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
bands_list = ", ".join(grgsm.arfcn.get_bands())
parser.add_option("-b", "--band", dest="band", default="P-GSM",
help="Specify the GSM band for the frequency.\nAvailable bands are: " + bands_list)
parser.add_option("-s", "--samp-rate", dest="samp_rate", type="float", default=2e6,
help="Set sample rate [default=%default] - allowed values even_number*0.2e6")
parser.add_option("-p", "--ppm", dest="ppm", type="intx", default=0,
help="Set frequency correction in ppm [default=%default]")
parser.add_option("-g", "--gain", dest="gain", type="eng_float", default=24.0,
help="Set gain [default=%default]")
parser.add_option("", "--args", dest="args", type="string", default="",
help="Set device arguments [default=%default]")
parser.add_option("--speed", dest="speed", type="intx", default=4,
help="Scan speed [default=%default]. Value range 0-5.")
parser.add_option("-v", "--verbose", action="store_true",
help="If set, verbose information output is printed: ccch configuration, cell ARFCN's, neighbour ARFCN's")
"""
Dont forget: sudo sysctl kernel.shmmni=32000
"""
return parser
def main(options = None):
if options is None:
(options, args) = argument_parser().parse_args()
if options.band not in grgsm.arfcn.get_bands():
parser.error("Invalid GSM band\n")
if options.speed < 0 or options.speed > 5:
parser.error("Invalid scan speed.\n")
if (options.samp_rate / 0.2e6) % 2 != 0:
parser.error("Invalid sample rate. Sample rate must be an even numer * 0.2e6")
def printfunc(found_list):
for info in sorted(found_list):
print info
if options.verbose:
print info.get_verbose_info()
print ""
do_scan(options.samp_rate, options.band, options.speed,
options.ppm, options.gain, options.args, prn = printfunc)
if __name__ == '__main__':
main()