#!/usr/bin/env python2
# -*- coding: utf-8 -*-
# @file
# @author (C) 2014-2016 by Piotr Krysik <ptrkrysik@gmail.com>
# @section LICENSE
#
# Gr-gsm 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, or (at your option)
# any later version.
#
# Gr-gsm 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 gr-gsm; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
#
##################################################
# GNU Radio Python Flow Graph
# Title: Gr-gsm Livemon
# Author: Piotr Krysik
# Description: Interactive monitor of a single C0 channel with analysis performed by Wireshark (command to run wireshark: sudo wireshark -k -f udp -Y gsmtap -i lo)
# Generated: Sun Jul 23 19:07:48 2017
##################################################

if __name__ == '__main__':
    import ctypes
    import sys
    if sys.platform.startswith('linux'):
        try:
            x11 = ctypes.cdll.LoadLibrary('libX11.so')
            x11.XInitThreads()
        except:
            print "Warning: failed to XInitThreads()"

from PyQt4 import Qt
from gnuradio import blocks
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio import qtgui
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from gnuradio.qtgui import Range, RangeWidget
from math import pi
from optparse import OptionParser
import grgsm
import osmosdr
import pmt
import sip
import sys
import time


class grgsm_livemon(gr.top_block, Qt.QWidget):

    def __init__(self, args="", gain=30, osr=4, ppm=0, samp_rate=2000000.052982, shiftoff=400e3, fc=941.8e6):
        gr.top_block.__init__(self, "Gr-gsm Livemon")
        Qt.QWidget.__init__(self)
        self.setWindowTitle("Gr-gsm Livemon")
        try:
            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
        except:
            pass
        self.top_scroll_layout = Qt.QVBoxLayout()
        self.setLayout(self.top_scroll_layout)
        self.top_scroll = Qt.QScrollArea()
        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
        self.top_scroll_layout.addWidget(self.top_scroll)
        self.top_scroll.setWidgetResizable(True)
        self.top_widget = Qt.QWidget()
        self.top_scroll.setWidget(self.top_widget)
        self.top_layout = Qt.QVBoxLayout(self.top_widget)
        self.top_grid_layout = Qt.QGridLayout()
        self.top_layout.addLayout(self.top_grid_layout)

        self.settings = Qt.QSettings("GNU Radio", "grgsm_livemon")
        self.restoreGeometry(self.settings.value("geometry").toByteArray())

        ##################################################
        # Parameters
        ##################################################
        self.args = args
        self.gain = gain
        self.osr = osr
        self.ppm = ppm
        self.samp_rate = samp_rate
        self.shiftoff = shiftoff
        self.fc = fc

        ##################################################
        # Variables
        ##################################################
        self.ppm_slider = ppm_slider = ppm
        self.g_slider = g_slider = gain
        self.fc_slider = fc_slider = fc

        ##################################################
        # Blocks
        ##################################################
        self._ppm_slider_range = Range(-150, 150, 0.1, ppm, 100)
        self._ppm_slider_win = RangeWidget(self._ppm_slider_range, self.set_ppm_slider, "PPM Offset", "counter", float)
        self.top_layout.addWidget(self._ppm_slider_win)
        self._g_slider_range = Range(0, 50, 0.5, gain, 100)
        self._g_slider_win = RangeWidget(self._g_slider_range, self.set_g_slider, "Gain", "counter", float)
        self.top_layout.addWidget(self._g_slider_win)
        self._fc_slider_range = Range(800e6, 1990e6, 2e5, fc, 100)
        self._fc_slider_win = RangeWidget(self._fc_slider_range, self.set_fc_slider, "Frequency", "counter_slider", float)
        self.top_layout.addWidget(self._fc_slider_win)
        self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + args )
        self.rtlsdr_source_0.set_sample_rate(samp_rate)
        self.rtlsdr_source_0.set_center_freq(fc_slider-shiftoff, 0)
        self.rtlsdr_source_0.set_freq_corr(ppm_slider, 0)
        self.rtlsdr_source_0.set_dc_offset_mode(2, 0)
        self.rtlsdr_source_0.set_iq_balance_mode(2, 0)
        self.rtlsdr_source_0.set_gain_mode(False, 0)
        self.rtlsdr_source_0.set_gain(g_slider, 0)
        self.rtlsdr_source_0.set_if_gain(20, 0)
        self.rtlsdr_source_0.set_bb_gain(20, 0)
        self.rtlsdr_source_0.set_antenna("", 0)
        self.rtlsdr_source_0.set_bandwidth(250e3+abs(shiftoff), 0)
          
        self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c(
        	1024, #size
        	firdes.WIN_BLACKMAN_hARRIS, #wintype
        	fc_slider, #fc
        	samp_rate, #bw
        	"", #name
        	1 #number of inputs
        )
        self.qtgui_freq_sink_x_0.set_update_time(0.10)
        self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
        self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
        self.qtgui_freq_sink_x_0.enable_autoscale(False)
        self.qtgui_freq_sink_x_0.enable_grid(False)
        self.qtgui_freq_sink_x_0.set_fft_average(1.0)
        self.qtgui_freq_sink_x_0.enable_control_panel(False)
        
        if not True:
          self.qtgui_freq_sink_x_0.disable_legend()
        
        if "complex" == "float" or "complex" == "msg_float":
          self.qtgui_freq_sink_x_0.set_plot_pos_half(not True)
        
        labels = ["", "", "", "", "",
                  "", "", "", "", ""]
        widths = [1, 1, 1, 1, 1,
                  1, 1, 1, 1, 1]
        colors = ["blue", "red", "green", "black", "cyan",
                  "magenta", "yellow", "dark red", "dark green", "dark blue"]
        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
                  1.0, 1.0, 1.0, 1.0, 1.0]
        for i in xrange(1):
            if len(labels[i]) == 0:
                self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
            else:
                self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
            self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
            self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
            self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
        
        self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
        self.top_layout.addWidget(self._qtgui_freq_sink_x_0_win)
        self.gsm_sdcch8_demapper_0 = grgsm.gsm_sdcch8_demapper(
            timeslot_nr=1,
        )
        self.gsm_receiver_0 = grgsm.receiver(4, ([0]), ([]), False)
        self.gsm_message_printer_1 = grgsm.message_printer(pmt.intern(""), False,
            False, False)
        self.gsm_input_0 = grgsm.gsm_input(
            ppm=ppm-int(ppm),
            osr=4,
            fc=fc,
            samp_rate_in=samp_rate,
        )
        self.gsm_decryption_0 = grgsm.decryption(([]), 1)
        self.gsm_control_channels_decoder_0_0 = grgsm.control_channels_decoder()
        self.gsm_control_channels_decoder_0 = grgsm.control_channels_decoder()
        self.gsm_clock_offset_control_0 = grgsm.clock_offset_control(fc-shiftoff, samp_rate, osr)
        self.gsm_bcch_ccch_sdcch4_demapper_0 = grgsm.gsm_bcch_ccch_sdcch4_demapper(
            timeslot_nr=0,
        )
        self.blocks_socket_pdu_0_0 = blocks.socket_pdu("UDP_SERVER", "127.0.0.1", "4729", 10000, False)
        self.blocks_socket_pdu_0 = blocks.socket_pdu("UDP_CLIENT", "127.0.0.1", "4729", 10000, False)
        self.blocks_rotator_cc_0 = blocks.rotator_cc(-2*pi*shiftoff/samp_rate)

        ##################################################
        # Connections
        ##################################################
        self.msg_connect((self.gsm_bcch_ccch_sdcch4_demapper_0, 'bursts'), (self.gsm_control_channels_decoder_0, 'bursts'))    
        self.msg_connect((self.gsm_clock_offset_control_0, 'ctrl'), (self.gsm_input_0, 'ctrl_in'))    
        self.msg_connect((self.gsm_control_channels_decoder_0, 'msgs'), (self.blocks_socket_pdu_0, 'pdus'))    
        self.msg_connect((self.gsm_control_channels_decoder_0, 'msgs'), (self.gsm_message_printer_1, 'msgs'))    
        self.msg_connect((self.gsm_control_channels_decoder_0_0, 'msgs'), (self.blocks_socket_pdu_0, 'pdus'))    
        self.msg_connect((self.gsm_control_channels_decoder_0_0, 'msgs'), (self.gsm_message_printer_1, 'msgs'))    
        self.msg_connect((self.gsm_decryption_0, 'bursts'), (self.gsm_control_channels_decoder_0_0, 'bursts'))    
        self.msg_connect((self.gsm_receiver_0, 'C0'), (self.gsm_bcch_ccch_sdcch4_demapper_0, 'bursts'))    
        self.msg_connect((self.gsm_receiver_0, 'measurements'), (self.gsm_clock_offset_control_0, 'measurements'))    
        self.msg_connect((self.gsm_receiver_0, 'C0'), (self.gsm_sdcch8_demapper_0, 'bursts'))    
        self.msg_connect((self.gsm_sdcch8_demapper_0, 'bursts'), (self.gsm_decryption_0, 'bursts'))    
        self.connect((self.blocks_rotator_cc_0, 0), (self.gsm_input_0, 0))    
        self.connect((self.blocks_rotator_cc_0, 0), (self.qtgui_freq_sink_x_0, 0))    
        self.connect((self.gsm_input_0, 0), (self.gsm_receiver_0, 0))    
        self.connect((self.rtlsdr_source_0, 0), (self.blocks_rotator_cc_0, 0))    

    def closeEvent(self, event):
        self.settings = Qt.QSettings("GNU Radio", "grgsm_livemon")
        self.settings.setValue("geometry", self.saveGeometry())
        event.accept()


    def get_args(self):
        return self.args

    def set_args(self, args):
        self.args = args

    def get_gain(self):
        return self.gain

    def set_gain(self, gain):
        self.gain = gain
        self.set_g_slider(self.gain)

    def get_osr(self):
        return self.osr

    def set_osr(self, osr):
        self.osr = osr

    def get_ppm(self):
        return self.ppm

    def set_ppm(self, ppm):
        self.ppm = ppm
        self.set_ppm_slider(self.ppm)
        self.gsm_input_0.set_ppm(self.ppm-int(self.ppm))

    def get_samp_rate(self):
        return self.samp_rate

    def set_samp_rate(self, samp_rate):
        self.samp_rate = samp_rate
        self.blocks_rotator_cc_0.set_phase_inc(-2*pi*self.shiftoff/self.samp_rate)
        self.gsm_input_0.set_samp_rate_in(self.samp_rate)
        self.qtgui_freq_sink_x_0.set_frequency_range(self.fc_slider, self.samp_rate)
        self.rtlsdr_source_0.set_sample_rate(self.samp_rate)

    def get_shiftoff(self):
        return self.shiftoff

    def set_shiftoff(self, shiftoff):
        self.shiftoff = shiftoff
        self.blocks_rotator_cc_0.set_phase_inc(-2*pi*self.shiftoff/self.samp_rate)
        self.rtlsdr_source_0.set_center_freq(self.fc_slider-self.shiftoff, 0)
        self.rtlsdr_source_0.set_bandwidth(250e3+abs(self.shiftoff), 0)

    def get_fc(self):
        return self.fc

    def set_fc(self, fc):
        self.fc = fc
        self.set_fc_slider(self.fc)
        self.gsm_input_0.set_fc(self.fc)

    def get_ppm_slider(self):
        return self.ppm_slider

    def set_ppm_slider(self, ppm_slider):
        self.ppm_slider = ppm_slider
        self.rtlsdr_source_0.set_freq_corr(self.ppm_slider, 0)

    def get_g_slider(self):
        return self.g_slider

    def set_g_slider(self, g_slider):
        self.g_slider = g_slider
        self.rtlsdr_source_0.set_gain(self.g_slider, 0)

    def get_fc_slider(self):
        return self.fc_slider

    def set_fc_slider(self, fc_slider):
        self.fc_slider = fc_slider
        self.qtgui_freq_sink_x_0.set_frequency_range(self.fc_slider, self.samp_rate)
        self.rtlsdr_source_0.set_center_freq(self.fc_slider-self.shiftoff, 0)


def argument_parser():
    parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
    parser.add_option(
        "", "--args", dest="args", type="string", default="",
        help="Set Device Arguments [default=%default]")
    parser.add_option(
        "-g", "--gain", dest="gain", type="eng_float", default=eng_notation.num_to_str(30),
        help="Set gain [default=%default]")
    parser.add_option(
        "", "--osr", dest="osr", type="intx", default=4,
        help="Set OverSampling Ratio [default=%default]")
    parser.add_option(
        "-p", "--ppm", dest="ppm", type="eng_float", default=eng_notation.num_to_str(0),
        help="Set ppm [default=%default]")
    parser.add_option(
        "-s", "--samp-rate", dest="samp_rate", type="eng_float", default=eng_notation.num_to_str(2000000.052982),
        help="Set samp_rate [default=%default]")
    parser.add_option(
        "-o", "--shiftoff", dest="shiftoff", type="eng_float", default=eng_notation.num_to_str(400e3),
        help="Set Frequency Shiftoff [default=%default]")
    parser.add_option(
        "-f", "--fc", dest="fc", type="eng_float", default=eng_notation.num_to_str(941.8e6),
        help="Set GSM channel's central frequency [default=%default]")
    return parser


def main(top_block_cls=grgsm_livemon, options=None):
    if options is None:
        options, _ = argument_parser().parse_args()

    from distutils.version import StrictVersion
    if StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0"):
        style = gr.prefs().get_string('qtgui', 'style', 'raster')
        Qt.QApplication.setGraphicsSystem(style)
    qapp = Qt.QApplication(sys.argv)

    tb = top_block_cls(args=options.args, gain=options.gain, osr=options.osr, ppm=options.ppm, samp_rate=options.samp_rate, shiftoff=options.shiftoff, fc=options.fc)
    tb.start()
    tb.show()

    def quitting():
        tb.stop()
        tb.wait()
    qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
    qapp.exec_()


if __name__ == '__main__':
    main()