712 lines
25 KiB
Python
Executable File
712 lines
25 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2008 Steve Glass
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#
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# This file is part of OP25.
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#
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# OP25 is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# OP25 is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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# License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with OP25; see the file COPYING. If not, write to the Free
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# Software Foundation, Inc., 51 Franklin Street, Boston, MA
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# 02110-1301, USA.
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import os
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import pickle
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import sys
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import threading
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import wx
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import wx.html
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import wx.wizard
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from gnuradio import audio, eng_notation, gr, gru, op25
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from gnuradio.eng_option import eng_option
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from gnuradio.wxgui import stdgui2, fftsink2, scopesink2
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from math import pi
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from optparse import OptionParser
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# from usrpm import usrp_dbid
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# The P25 receiver
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#
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class p25_rx_block (stdgui2.std_top_block):
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# Initialize the P25 receiver
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#
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def __init__(self, frame, panel, vbox, argv):
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stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv)
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# do we have a USRP?
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try:
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self.usrp = None
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from gnuradio import usrp
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self.usrp = usrp.source_c()
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except Exception:
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ignore = True
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# setup (read-only) attributes
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self.channel_rate = 48000
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self.symbol_rate = 4800
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self.symbol_deviation = 600.0
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# keep track of flow graph connections
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self.cnxns = []
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# initialize the UI
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#
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self.__init_gui(frame, panel, vbox)
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# command line argument parsing
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parser = OptionParser(option_class=eng_option)
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parser.add_option("-i", "--input", default=None, help="input file name")
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parser.add_option("-f", "--frequency", type="eng_float", default=0.0, help="USRP center frequency", metavar="Hz")
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parser.add_option("-d", "--decim", type="int", default=256, help="source decimation factor")
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parser.add_option("-w", "--wait", action="store_true", default=False, help="block on startup")
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parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=(0, 0), help="select USRP Rx side A or B (default=A)")
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parser.add_option("-g", "--gain", type="eng_float", default=None, help="set USRP gain in dB (default is midpoint)")
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(options, args) = parser.parse_args()
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if len(args) != 0:
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parser.print_help()
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sys.exit(1)
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# wait for gdb
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if options.wait:
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print 'Ready for GDB to attach (pid = %d)' % (os.getpid(),)
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raw_input("Press 'Enter' to continue...")
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# configure specified data source
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if options.input:
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self.open_file(options.input)
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elif options.frequency:
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self._set_state("CAPTURING")
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self.open_usrp(options.rx_subdev_spec, options.decim, options.gain, options.frequency, True)
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else:
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self._set_state("STOPPED")
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# setup common flow graph elements
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#
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def __build_graph(self, source, capture_rate):
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# tell the scope the source rate
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self.spectrum.set_sample_rate(capture_rate)
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# channel filter
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self.channel_offset = 0.0
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channel_decim = capture_rate // self.channel_rate
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channel_rate = capture_rate // channel_decim
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trans_width = 12.5e3 / 2;
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trans_centre = trans_width + (trans_width / 2)
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coeffs = gr.firdes.low_pass(1.0, capture_rate, trans_centre, trans_width, gr.firdes.WIN_HANN)
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self.channel_filter = gr.freq_xlating_fir_filter_ccf(channel_decim, coeffs, -9500.0, capture_rate)
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self.set_channel_offset(0.0, 0, self.spectrum.win._units)
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# power squelch
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squelch_db = -60
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self.squelch = gr.pwr_squelch_cc(squelch_db, 1e-3, 0, True)
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self.set_squelch_threshold(squelch_db)
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# FM demodulator
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fm_demod_gain = channel_rate / (2.0 * pi * self.symbol_deviation)
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fm_demod = gr.quadrature_demod_cf(fm_demod_gain)
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# symbol filter
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symbol_decim = 1
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#symbol_coeffs = gr.firdes.root_raised_cosine(1.0, channel_rate, self.symbol_rate, 0.2, 500)
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# boxcar coefficients for "integrate and dump" filter
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samples_per_symbol = channel_rate // self.symbol_rate
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symbol_coeffs = (1.0/samples_per_symbol,)*samples_per_symbol
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symbol_filter = gr.fir_filter_fff(symbol_decim, symbol_coeffs)
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# C4FM demodulator
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autotuneq = gr.msg_queue(2)
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self.demod_watcher = demod_watcher(autotuneq, self.adjust_channel_offset)
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demod_fsk4 = op25.fsk4_demod_ff(autotuneq, channel_rate, self.symbol_rate)
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reverser = gr.multiply_const_ff(-1.0)
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# for now no audio output
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sink = gr.null_sink(gr.sizeof_float)
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# connect it all up
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self.__connect([[source, self.channel_filter, self.squelch, fm_demod, symbol_filter, demod_fsk4, reverser, self.slicer, self.p25_decoder, sink],
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[source, self.spectrum],
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[symbol_filter, self.signal_scope],
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[demod_fsk4, self.symbol_scope]])
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# Connect up the flow graph
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#
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def __connect(self, cnxns):
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for l in cnxns:
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for b in l:
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if b == l[0]:
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p = l[0]
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else:
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self.connect(p, b)
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p = b
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self.cnxns.extend(cnxns)
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# Disconnect the flow graph
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#
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def __disconnect(self):
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for l in self.cnxns:
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for b in l:
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if b == l[0]:
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p = l[0]
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else:
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self.disconnect(p, b)
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p = b
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self.cnxns = []
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# initialize the UI
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#
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def __init_gui(self, frame, panel, vbox):
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self.frame = frame
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self.frame.CreateStatusBar()
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self.panel = panel
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self.vbox = vbox
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# setup the menu bar
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menubar = self.frame.GetMenuBar()
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# setup the "File" menu
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file_menu = menubar.GetMenu(0)
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self.file_new = file_menu.Insert(0, wx.ID_NEW)
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self.frame.Bind(wx.EVT_MENU, self._on_file_new, self.file_new)
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self.file_open = file_menu.Insert(1, wx.ID_OPEN)
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self.frame.Bind(wx.EVT_MENU, self._on_file_open, self.file_open)
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file_menu.InsertSeparator(2)
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self.file_properties = file_menu.Insert(3, wx.ID_PROPERTIES)
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self.frame.Bind(wx.EVT_MENU, self._on_file_properties, self.file_properties)
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file_menu.InsertSeparator(4)
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self.file_close = file_menu.Insert(5, wx.ID_CLOSE)
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self.frame.Bind(wx.EVT_MENU, self._on_file_close, self.file_close)
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# setup the "Edit" menu
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edit_menu = wx.Menu()
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self.edit_undo = edit_menu.Insert(0, wx.ID_UNDO)
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self.frame.Bind(wx.EVT_MENU, self._on_edit_undo, self.edit_undo)
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self.edit_redo = edit_menu.Insert(1, wx.ID_REDO)
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self.frame.Bind(wx.EVT_MENU, self._on_edit_redo, self.edit_redo)
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edit_menu.InsertSeparator(2)
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self.edit_cut = edit_menu.Insert(3, wx.ID_CUT)
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self.frame.Bind(wx.EVT_MENU, self._on_edit_cut, self.edit_cut)
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self.edit_copy = edit_menu.Insert(4, wx.ID_COPY)
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self.frame.Bind(wx.EVT_MENU, self._on_edit_copy, self.edit_copy)
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self.edit_paste = edit_menu.Insert(5, wx.ID_PASTE)
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self.frame.Bind(wx.EVT_MENU, self._on_edit_paste, self.edit_paste)
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self.edit_delete = edit_menu.Insert(6, wx.ID_DELETE)
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self.frame.Bind(wx.EVT_MENU, self._on_edit_delete, self.edit_delete)
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edit_menu.InsertSeparator(7)
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self.edit_select_all = edit_menu.Insert(8, wx.ID_SELECTALL)
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self.frame.Bind(wx.EVT_MENU, self._on_edit_select_all, self.edit_select_all)
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edit_menu.InsertSeparator(9)
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self.edit_prefs = edit_menu.Insert(10, wx.ID_PREFERENCES)
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self.frame.Bind(wx.EVT_MENU, self._on_edit_prefs, self.edit_prefs)
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menubar.Append(edit_menu, "&Edit"); # ToDo use wx.ID_EDIT stuff
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# setup the toolbar
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if True:
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self.toolbar = wx.ToolBar(frame, -1, style = wx.TB_DOCKABLE | wx.TB_HORIZONTAL)
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frame.SetToolBar(self.toolbar)
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icon_size = wx.Size(24, 24)
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new_icon = wx.ArtProvider.GetBitmap(wx.ART_NEW, wx.ART_TOOLBAR, icon_size)
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toolbar_new = self.toolbar.AddSimpleTool(wx.ID_NEW, new_icon, "New Capture")
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open_icon = wx.ArtProvider.GetBitmap(wx.ART_FILE_OPEN, wx.ART_TOOLBAR, icon_size)
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toolbar_open = self.toolbar.AddSimpleTool(wx.ID_OPEN, open_icon, "Open")
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#
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# self.toolbar.AddSeparator()
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# self.gain_control = wx.Slider(self.toolbar, 100, 50, 1, 100, style=wx.SL_HORIZONTAL)
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# slider.SetTickFreq(5, 1)
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# self.toolbar.AddControl(self.gain_control)
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#
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self.toolbar.Realize()
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else:
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self.toolbar = None
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# setup the notebook
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self.notebook = wx.Notebook(self.panel)
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self.vbox.Add(self.notebook, 1, wx.EXPAND)
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# add spectrum scope
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self.spectrum = fftsink2.fft_sink_c(self.notebook, fft_size=512, fft_rate=2, average=True, peak_hold=True)
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self.spectrum_plotter = self.spectrum.win.plot
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self.spectrum_plotter.Bind(wx.EVT_LEFT_DOWN, self._on_spectrum_left_click)
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self.notebook.AddPage(self.spectrum.win, "RF Spectrum")
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# add C4FM scope
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self.signal_scope = scopesink2.scope_sink_f(self.notebook, sample_rate = self.channel_rate, v_scale=5, t_scale=0.001)
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self.signal_plotter = self.signal_scope.win.graph
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self.notebook.AddPage(self.signal_scope.win, "C4FM Signal")
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# add symbol scope
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self.symbol_scope = scopesink2.scope_sink_f(self.notebook, frame_decim=1, sample_rate=self.symbol_rate, v_scale=1, t_scale=0.05)
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self.symbol_plotter = self.symbol_scope.win.graph
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self.symbol_scope.win.set_format_plus()
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self.notebook.AddPage(self.symbol_scope.win, "Demodulated Symbols")
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# Traffic snapshot
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self.traffic = TrafficPane(self.notebook)
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self.notebook.AddPage(self.traffic, "Traffic")
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# Symbol slicer
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levels = [ -2.0, 0.0, 2.0, 4.0 ]
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self.slicer = op25.fsk4_slicer_fb(levels)
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# Setup the decoder and report the TUN/TAP device name
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self.decode_watcher = decode_watcher(msgq, self.traffic)
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self.p25_decoder = op25.decoder_bf()
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self.p25_decoder.set_msgq(gr.msg_queue(2))
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self.frame.SetStatusText("TUN/TAP: " + self.p25_decoder.destination())
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# read capture file properties (decimation etc.)
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#
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def __read_file_properties(self, filename):
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f = open(filename, "r")
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self.info = pickle.load(f)
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ToDo = True
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f.close()
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# setup to rx from file
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#
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def __set_rx_from_file(self, filename, capture_rate):
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file = gr.file_source(gr.sizeof_gr_complex, filename, True)
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throttle = gr.throttle(gr.sizeof_gr_complex, capture_rate)
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self.__connect([[file, throttle]])
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self.__build_graph(throttle, capture_rate)
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# setup to rx from USRP
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#
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def __set_rx_from_usrp(self, subdev_spec, decimation_rate, gain, frequency, preserve):
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from gnuradio import usrp
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# setup USRP
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self.usrp.set_decim_rate(decimation_rate)
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if subdev_spec is None:
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subdev_spec = usrp.pick_rx_subdevice(self.usrp)
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self.usrp.set_mux(usrp.determine_rx_mux_value(self.usrp, subdev_spec))
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subdev = usrp.selected_subdev(self.usrp, subdev_spec)
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capture_rate = self.usrp.adc_freq() / self.usrp.decim_rate()
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self.info["capture-rate"] = capture_rate
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if gain is None:
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g = subdev.gain_range()
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gain = float(g[0]+g[1])/2
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subdev.set_gain(gain)
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r = self.usrp.tune(0, subdev, frequency)
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if not r:
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raise RuntimeError("failed to set USRP frequency")
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# capture file
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if preserve:
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try:
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self.capture_filename = os.tmpnam()
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except RuntimeWarning:
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ignore = True
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capture_file = gr.file_sink(gr.sizeof_gr_complex, self.capture_filename)
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self.__connect([[self.usrp, capture_file]])
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else:
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self.capture_filename = None
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# everything else
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self.__build_graph(self.usrp, capture_rate)
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# Change the UI state
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#
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def _set_state(self, new_state):
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self.state = new_state
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if "STOPPED" == self.state:
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# menu items
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can_capture = self.usrp is not None
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self.file_new.Enable(can_capture)
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self.file_open.Enable(True)
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self.file_properties.Enable(False)
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self.file_close.Enable(False)
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# toolbar
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if self.toolbar:
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self.toolbar.EnableTool(wx.ID_NEW, can_capture)
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self.toolbar.EnableTool(wx.ID_OPEN, True)
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# Visually reflect "no file"
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self.frame.SetStatusText("", 1)
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self.frame.SetStatusText("", 2)
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self.spectrum_plotter.Clear()
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self.signal_plotter.Clear()
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self.symbol_plotter.Clear()
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self.traffic.clear()
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elif "RUNNING" == self.state:
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# menu items
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self.file_new.Enable(False)
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self.file_open.Enable(False)
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self.file_properties.Enable(True)
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self.file_close.Enable(True)
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# toolbar
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if self.toolbar:
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self.toolbar.EnableTool(wx.ID_NEW, False)
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self.toolbar.EnableTool(wx.ID_OPEN, False)
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elif "CAPTURING" == self.state:
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# menu items
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self.file_new.Enable(False)
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self.file_open.Enable(False)
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self.file_properties.Enable(True)
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self.file_close.Enable(True)
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# toolbar
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if self.toolbar:
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self.toolbar.EnableTool(wx.ID_NEW, False)
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self.toolbar.EnableTool(wx.ID_OPEN, False)
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# Append filename to default title bar
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#
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def _set_titlebar(self, filename):
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ToDo = True
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# Write capture file properties
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#
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def __write_file_properties(self, filename):
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f = open(filename, "w")
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pickle.dump(self.info, f)
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f.close()
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# Adjust the channel offset
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#
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def adjust_channel_offset(self, delta_hz):
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return
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max_delta_hz = 12000.0
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delta_hz *= self.symbol_deviation
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delta_hz = max(delta_hz, -max_delta_hz)
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delta_hz = min(delta_hz, max_delta_hz)
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self.channel_filter.set_center_freq(self.channel_offset - delta_hz)
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# Close an open file
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#
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def _on_file_close(self, event):
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self.stop()
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self.wait()
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self.__disconnect()
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if "CAPTURING" == self.state and self.capture_filename:
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dialog = wx.MessageDialog(self.frame, "Save capture file before closing?", style=wx.YES_NO | wx.YES_DEFAULT | wx.ICON_QUESTION)
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if wx.ID_YES == dialog.ShowModal():
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save_dialog = wx.FileDialog(self.frame, "Save capture file as:", wildcard="*.dat", style=wx.SAVE|wx.OVERWRITE_PROMPT)
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if save_dialog.ShowModal() == wx.ID_OK:
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path = str(save_dialog.GetPath())
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save_dialog.Destroy()
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os.rename(self.capture_filename, path)
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self.__write_file_properties(path + ".info")
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else:
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os.remove(self.capture_filename)
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self.capture_filename = None
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self._set_state("STOPPED")
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# New capture from USRP
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#
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def _on_file_new(self, event):
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# wizard = wx.wizard.Wizard(self.frame, -1, "New Capture from USRP")
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# page1 = wizard_intro_page(wizard)
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# page2 = wizard_details_page(wizard)
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# page3 = wizard_preserve_page(wizard)
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# page4 = wizard_finish_page(wizard)
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# wx.wizard.WizardPageSimple_Chain(page1, page2)
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# wx.wizard.WizardPageSimple_Chain(page2, page3)
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# wx.wizard.WizardPageSimple_Chain(page3, page4)
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# wizard.FitToPage(page1)
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# if wizard.RunWizard(page1):
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self.stop()
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self.wait()
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# ToDo: get open_usrp() arguments from wizard
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self.open_usrp((0,0), 256, None, 434.08e06, True) # Test freq
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self.start()
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# Open an existing capture
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#
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def _on_file_open(self, event):
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dialog = wx.FileDialog(self.frame, "Choose a capture file:", wildcard="*.dat", style=wx.OPEN)
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if dialog.ShowModal() == wx.ID_OK:
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file = str(dialog.GetPath())
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dialog.Destroy()
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self.stop()
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self.wait()
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self.open_file(file)
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self.start()
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# Present file properties dialog
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#
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def _on_file_properties(self, event):
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# ToDo: show what info we have about the capture file (name,
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# capture source, capture rate, date(?), size(?),)
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todo = True
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# Undo the last edit
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#
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def _on_edit_undo(self, event):
|
|
todo = True
|
|
|
|
# Redo the edit
|
|
#
|
|
def _on_edit_redo(self, event):
|
|
todo = True
|
|
|
|
# Cut the current selection
|
|
#
|
|
def _on_edit_cut(self, event):
|
|
todo = True
|
|
|
|
# Copy the current selection
|
|
#
|
|
def _on_edit_copy(self, event):
|
|
todo = True
|
|
|
|
# Paste into the current sample
|
|
#
|
|
def _on_edit_paste(self, event):
|
|
todo = True
|
|
|
|
# Delete the current selection
|
|
#
|
|
def _on_edit_delete(self, event):
|
|
todo = True
|
|
|
|
# Select all
|
|
#
|
|
def _on_edit_select_all(self, event):
|
|
todo = True
|
|
|
|
# Open the preferences dialog
|
|
#
|
|
def _on_edit_prefs(self, event):
|
|
todo = True
|
|
|
|
|
|
# Set channel offset and RF squelch threshold
|
|
#
|
|
def _on_spectrum_left_click(self, event):
|
|
if "STOPPED" != self.state:
|
|
# set frequency
|
|
x,y = self.spectrum_plotter.GetXY(event)
|
|
xmin, xmax = self.spectrum_plotter.GetXCurrentRange()
|
|
x = min(x, xmax)
|
|
x = max(x, xmin)
|
|
scale_factor = self.spectrum.win._scale_factor
|
|
chan_width = 6.25e3
|
|
x /= scale_factor
|
|
x += chan_width / 2
|
|
x = (x // chan_width) * chan_width
|
|
self.set_channel_offset(x, scale_factor, self.spectrum.win._units)
|
|
# set squelch threshold
|
|
ymin, ymax = self.spectrum_plotter.GetYCurrentRange()
|
|
y = min(y, ymax)
|
|
y = max(y, ymin)
|
|
squelch_increment = 5
|
|
y += squelch_increment / 2
|
|
y = (y // squelch_increment) * squelch_increment
|
|
self.set_squelch_threshold(int(y))
|
|
|
|
# Open an existing capture file
|
|
#
|
|
def open_file(self, capture_file):
|
|
try:
|
|
self.__read_file_properties(capture_file + ".info")
|
|
capture_rate = self.info["capture-rate"]
|
|
self.__set_rx_from_file(capture_file, capture_rate)
|
|
self._set_titlebar(capture_file)
|
|
self._set_state("RUNNING")
|
|
except Exception, x:
|
|
wx.MessageBox("Cannot open capture file: " + x.message, "File Error", wx.CANCEL | wx.ICON_EXCLAMATION)
|
|
|
|
# Open the USRP
|
|
#
|
|
def open_usrp(self, subdev_spec, decim, gain, frequency, preserve):
|
|
try:
|
|
self.info = {
|
|
"capture-rate": "unknown",
|
|
"center-freq": frequency,
|
|
"source-dev": "USRP",
|
|
"source-decim": decim }
|
|
self.__set_rx_from_usrp(subdev_spec, decim, gain, frequency, preserve)
|
|
self._set_titlebar("Capturing")
|
|
self._set_state("CAPTURING")
|
|
except Exception, x:
|
|
wx.MessageBox("Cannot open USRP: " + x.message, "USRP Error", wx.CANCEL | wx.ICON_EXCLAMATION)
|
|
|
|
# Set the channel offset
|
|
#
|
|
def set_channel_offset(self, offset_hz, scale, units):
|
|
return
|
|
self.channel_offset = -offset_hz
|
|
self.channel_filter.set_center_freq(self.channel_offset)
|
|
self.frame.SetStatusText("Channel offset: " + str(offset_hz * scale) + units, 1)
|
|
|
|
# Set the RF squelch threshold level
|
|
#
|
|
def set_squelch_threshold(self, squelch_db):
|
|
self.squelch.set_threshold(squelch_db)
|
|
self.frame.SetStatusText("Squelch: " + str(squelch_db) + "dB", 2)
|
|
|
|
|
|
# A snapshot of important fields in current traffic
|
|
#
|
|
class TrafficPane(wx.Panel):
|
|
|
|
# Initializer
|
|
#
|
|
def __init__(self, parent):
|
|
|
|
wx.Panel.__init__(self, parent)
|
|
sizer = wx.GridBagSizer(hgap=10, vgap=10)
|
|
self.fields = {}
|
|
|
|
label = wx.StaticText(self, -1, "DUID:")
|
|
sizer.Add(label, pos=(1,1))
|
|
field = wx.TextCtrl(self, -1, "", size=(72, -1), style=wx.TE_READONLY)
|
|
sizer.Add(field, pos=(1,2))
|
|
self.fields["duid"] = field;
|
|
|
|
label = wx.StaticText(self, -1, "NAC:")
|
|
sizer.Add(label, pos=(2,1))
|
|
field = wx.TextCtrl(self, -1, "", size=(175, -1), style=wx.TE_READONLY)
|
|
sizer.Add(field, pos=(2,2))
|
|
self.fields["nac"] = field;
|
|
|
|
label = wx.StaticText(self, -1, "Source:")
|
|
sizer.Add(label, pos=(3,1))
|
|
field = wx.TextCtrl(self, -1, "", size=(175, -1), style=wx.TE_READONLY)
|
|
sizer.Add(field, pos=(3,2))
|
|
self.fields["source"] = field;
|
|
|
|
label = wx.StaticText(self, -1, "Destination:")
|
|
sizer.Add(label, pos=(4,1))
|
|
field = wx.TextCtrl(self, -1, "", size=(175, -1), style=wx.TE_READONLY)
|
|
sizer.Add(field, pos=(4,2))
|
|
self.fields["dest"] = field;
|
|
|
|
# label = wx.StaticText(self, -1, "ToDo:")
|
|
# sizer.Add(label, pos=(5,1))
|
|
# field = wx.TextCtrl(self, -1, "", size=(175, -1), style=wx.TE_READONLY)
|
|
# sizer.Add(field, pos=(5,2))
|
|
# self.fields["nid"] = field;
|
|
|
|
label = wx.StaticText(self, -1, "MFID:")
|
|
sizer.Add(label, pos=(1,4))
|
|
field = wx.TextCtrl(self, -1, "", size=(175, -1), style=wx.TE_READONLY)
|
|
sizer.Add(field, pos=(1,5))
|
|
self.fields["mfid"] = field;
|
|
|
|
label = wx.StaticText(self, -1, "ALGID:")
|
|
sizer.Add(label, pos=(2,4))
|
|
field = wx.TextCtrl(self, -1, "", size=(175, -1), style=wx.TE_READONLY)
|
|
sizer.Add(field, pos=(2,5))
|
|
self.fields["algid"] = field;
|
|
|
|
label = wx.StaticText(self, -1, "KID:")
|
|
sizer.Add(label, pos=(3,4))
|
|
field = wx.TextCtrl(self, -1, "", size=(72, -1), style=wx.TE_READONLY)
|
|
sizer.Add(field, pos=(3,5))
|
|
self.fields["kid"] = field;
|
|
|
|
label = wx.StaticText(self, -1, "MI:")
|
|
sizer.Add(label, pos=(4,4))
|
|
field = wx.TextCtrl(self, -1, "", size=(216, -1), style=wx.TE_READONLY)
|
|
sizer.Add(field, pos=(4,5))
|
|
self.fields["mi"] = field;
|
|
|
|
label = wx.StaticText(self, -1, "TGID:")
|
|
sizer.Add(label, pos=(5,4))
|
|
field = wx.TextCtrl(self, -1, "", size=(72, -1), style=wx.TE_READONLY)
|
|
sizer.Add(field, pos=(5,5))
|
|
self.fields["tgid"] = field;
|
|
|
|
self.SetSizer(sizer)
|
|
self.Fit()
|
|
|
|
# Clear the field values
|
|
#
|
|
def clear(self):
|
|
for v in self.fields.values():
|
|
v.Clear()
|
|
|
|
# Update the field values
|
|
#
|
|
def update(self, field_values):
|
|
for k,v in self.fields.items():
|
|
f = field_values.get(k, None)
|
|
if f:
|
|
v.SetValue(f)
|
|
else:
|
|
v.SetValue("")
|
|
|
|
|
|
# Introduction page for USRP capture wizard
|
|
#
|
|
class wizard_intro_page(wx.wizard.WizardPageSimple):
|
|
|
|
# Initializer
|
|
#
|
|
def __init__(self, parent):
|
|
wx.wizard.WizardPageSimple.__init__(self, parent)
|
|
html = wx.html.HtmlWindow(self)
|
|
html.SetPage('''
|
|
<html>
|
|
<body>
|
|
<h1>Capture from USRP</h1>
|
|
<p>
|
|
We will guide you through the process of capturing a sample from the USRP.
|
|
Please ensure that the USRP is switched on and connected to this computer.
|
|
</p>
|
|
</body>
|
|
</html>
|
|
''')
|
|
sizer = wx.BoxSizer(wx.VERTICAL)
|
|
self.SetSizer(sizer)
|
|
sizer.Add(html, 1, wx.ALIGN_CENTER | wx.EXPAND | wx.FIXED_MINSIZE)
|
|
|
|
|
|
# USRP wizard details page
|
|
#
|
|
class wizard_details_page(wx.wizard.WizardPageSimple):
|
|
|
|
# Initializer
|
|
#
|
|
def __init__(self, parent):
|
|
wx.wizard.WizardPageSimple.__init__(self, parent)
|
|
sizer = wx.BoxSizer(wx.VERTICAL)
|
|
self.SetSizer(sizer)
|
|
|
|
# Return a tuple containing the subdev_spec, gain, frequency, decimation factor
|
|
#
|
|
def get_details(self):
|
|
ToDo = True
|
|
|
|
|
|
# Frequency tracker
|
|
#
|
|
class demod_watcher(threading.Thread):
|
|
|
|
def __init__(self, msgq, callback, **kwds):
|
|
threading.Thread.__init__ (self, **kwds)
|
|
self.setDaemon(1)
|
|
self.msgq = msgq
|
|
self.callback = callback
|
|
self.keep_running = True
|
|
self.start()
|
|
|
|
def run(self):
|
|
while(self.keep_running):
|
|
msg = self.msgq.delete_head()
|
|
frequency_correction = msg.arg1()
|
|
self.callback(frequency_correction)
|
|
|
|
|
|
# Decoder watcher
|
|
#
|
|
class decode_watcher(threading.Thread):
|
|
|
|
def __init__(self, msgq, traffic_pane, **kwds):
|
|
threading.Thread.__init__ (self, **kwds)
|
|
self.setDaemon(1)
|
|
self.msgq = msgq
|
|
self.traffic_pane = traffic_pane
|
|
self.keep_running = True
|
|
self.start()
|
|
|
|
def run(self):
|
|
while(self.keep_running):
|
|
msg = self.msgq.delete_head()
|
|
pickled_dict = msg.to_string()
|
|
attrs = pickle.loads(pickled_dict)
|
|
self.traffic_pane.update(attrs)
|
|
|
|
|
|
# Start the receiver
|
|
#
|
|
if '__main__' == __name__:
|
|
app = stdgui2.stdapp(p25_rx_block, "APCO P25 Receiver", 3)
|
|
app.MainLoop()
|