aboutsummaryrefslogtreecommitdiffstats
path: root/apps/grgsm_trx
blob: b91171902a814eba87c3b4331569fcb6d4385b30 (plain)
1
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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# GR-GSM based transceiver
#
# (C) 2016-2019 by Vadim Yanitskiy <axilirator@gmail.com>
# (C) 2017-2018 by Piotr Krysik <ptrkrysik@gmail.com>
#
# All Rights Reserved
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

import signal
import sys

from argparse import ArgumentParser
from argparse import ArgumentTypeError
from gnuradio import eng_notation

from grgsm.trx import RadioInterfaceUHD
from grgsm.trx import RadioInterface
from grgsm.trx import Transceiver

COPYRIGHT = \
	"Copyright (C) 2016-2018 by Vadim Yanitskiy <axilirator@gmail.com>\n" \
	"Copyright (C) 2017-2018 by Piotr Krysik <ptrkrysik@gmail.com>\n" \
	"License GPLv2+: GNU GPL version 2 or later " \
	"<http://gnu.org/licenses/gpl.html>\n" \
	"This is free software: you are free to change and redistribute it.\n" \
	"There is NO WARRANTY, to the extent permitted by law.\n"

class Application:
	def __init__(self, argv):
		self.remote_addr = argv.remote_addr
		self.bind_addr = argv.bind_addr
		self.base_port = argv.base_port
		self.phy_args = argv.args
		self.phy_sample_rate = argv.sample_rate
		self.phy_rx_gain = argv.rx_gain
		self.phy_tx_gain = argv.tx_gain
		self.phy_rx_antenna = argv.rx_antenna
		self.phy_tx_antenna = argv.tx_antenna
		self.phy_freq_offset = argv.freq_offset
		self.phy_ppm = argv.ppm

		# Set up signal handlers
		signal.signal(signal.SIGINT, self.sig_handler)

		# Init Radio interface
		self.radio = RadioInterfaceUHD(self.phy_args, self.phy_sample_rate,
			self.phy_rx_gain, self.phy_tx_gain, self.phy_ppm,
			self.phy_rx_antenna, self.phy_tx_antenna,
			self.phy_freq_offset, self.bind_addr,
			self.remote_addr, self.base_port)

		# Init Transceiver
		self.trx = Transceiver(self.bind_addr,
			self.remote_addr, self.base_port,
			radio_if = self.radio)

		print("[i] Init complete")

	def run(self):
		# Enter main loop
		while True:
			self.trx.ctrl_if.loop()

	def shutdown(self):
		print("[i] Shutting down...")
		self.radio.shutdown()

	def sig_handler(self, signum, frame):
		print("Signal %d received" % signum)
		if signum is signal.SIGINT:
			self.shutdown()
			sys.exit(0)

def eng_float(value):
	try:
		return eng_notation.str_to_num(value)
	except:
		raise ArgumentTypeError("invalid engineering notation "
			"value: {0}".format(value))

def parse_argv():
	parser = ArgumentParser(prog = "grgsm_trx")

	# TRX interface specific
	trx_group = parser.add_argument_group("TRX interface")
	trx_group.add_argument("-i", "--remote-addr",
		dest = "remote_addr", type = str, default = "127.0.0.1",
		help = "Set remote address (default %(default)s)")
	trx_group.add_argument("-b", "--bind-addr",
		dest = "bind_addr", type = str, default = "0.0.0.0",
		help = "Set bind address (default %(default)s)")
	trx_group.add_argument("-p", "--base_port",
		dest = "base_port", type = int, default = 6700,
		help = "Set base port number (default %(default)s)")

	# PHY specific
	phy_group = parser.add_argument_group("PHY parameters")
	phy_group.add_argument("-a", "--args",
		dest = "args", type = str, default = "",
		help = "Set device arguments")
	phy_group.add_argument("-s", "--sample-rate",
		dest = "sample_rate", type = eng_float,
		default = RadioInterface.SAMPLE_RATE,
		help = "Set samp_rate (default %(default)s)")
	phy_group.add_argument("-g", "--rx-gain",
		dest = "rx_gain", type = float, default = 30,
		help = "Set RX gain (default %(default)s)")
	phy_group.add_argument("-G", "--tx-gain",
		dest = "tx_gain", type = float, default = 10,
		help = "Set TX gain (default %(default)s)")
	phy_group.add_argument("--rx-antenna",
		dest = "rx_antenna", type = str, default = "RX2",
		help = "Set RX antenna (default %(default)s)")
	phy_group.add_argument("--tx-antenna",
		dest = "tx_antenna", type = str, default = "TX/RX",
		help = "Set TX antenna (default %(default)s)")
	phy_group.add_argument("--freq-offset",
		dest = "freq_offset", type = eng_float, default = 0,
		help = "Shift baseband freq. (e.g. -500M)")
	phy_group.add_argument("--ppm",
		dest = "ppm", type = float, default = 0,
		help = "Set frequency correction (default %(default)s)")

	return parser.parse_args()

if __name__ == '__main__':
	print(COPYRIGHT)
	argv = parse_argv()
	app = Application(argv)
	app.run()