add osmosdr device support
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@ -53,18 +53,24 @@ class my_top_block(gr.top_block):
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gr.top_block.__init__(self)
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parser = OptionParser(option_class=eng_option)
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parser.add_option("-a", "--args", type="string", default="", help="device args")
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parser.add_option("-b", "--bt", type="float", default=0.25, help="specify bt value")
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parser.add_option("-c", "--config-file", type="string", default=None, help="specify the config file name")
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parser.add_option("-f", "--file1", type="string", default=None, help="specify the input file slot 1")
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parser.add_option("-F", "--file2", type="string", default=None, help="specify the input file slot 2 (DMR)")
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parser.add_option("-g", "--gain", type="float", default=1.0, help="input gain")
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parser.add_option("-i", "--if-rate", type="float", default=960000, help="output rate to sdr")
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parser.add_option("-I", "--audio-input", type="string", default="", help="pcm input device name. E.g., hw:0,0 or /dev/dsp")
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parser.add_option("-N", "--gains", type="string", default=None, help="gain settings")
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parser.add_option("-O", "--audio-output", type="string", default="default", help="pcm output device name. E.g., hw:0,0 or /dev/dsp")
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parser.add_option("-o", "--output-file", type="string", default=None, help="specify the output file")
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parser.add_option("-p", "--protocol", type="choice", default=None, choices=('dmr', 'dstar', 'p25', 'ysf'), help="specify protocol")
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parser.add_option("-q", "--frequency-correction", type="float", default=0.0, help="ppm")
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parser.add_option("-Q", "--frequency", type="float", default=0.0, help="Hz")
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parser.add_option("-r", "--repeat", action="store_true", default=False, help="input file repeat")
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parser.add_option("-R", "--fullrate-mode", action="store_true", default=False, help="ysf fullrate")
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parser.add_option("-s", "--sample-rate", type="int", default=48000, help="output sample rate")
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parser.add_option("-t", "--test", type="string", default=None, help="test pattern symbol file")
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parser.add_option("-v", "--verbose", type="int", default=0, help="additional output")
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(options, args) = parser.parse_args()
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@ -90,6 +96,17 @@ class my_top_block(gr.top_block):
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'p25': 2.0,
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'ysf': 3.0
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}
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mod_adjust = { # rough values
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'dmr': 0.3,
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'dstar': 0.075,
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'p25': 0.25,
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'ysf': 0.32
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}
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if options.protocol is None:
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print 'protocol [-p] option missing'
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sys.exit(0)
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output_gain = output_gains[options.protocol]
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if options.protocol in generators.keys():
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generator = generators[options.protocol]
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@ -98,7 +115,9 @@ class my_top_block(gr.top_block):
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if options.protocol in gain_adjust_fullrate.keys():
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os.environ['GAIN_ADJUST_FULLRATE'] = str(gain_adjust_fullrate[options.protocol])
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if options.protocol == 'dmr':
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if options.test:
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ENCODER = blocks.file_source(gr.sizeof_char, options.test, True)
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elif options.protocol == 'dmr':
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max_inputs = 2
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ENCODER = op25_repeater.ambe_encoder_sb(options.verbose)
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ENCODER2 = op25_repeater.ambe_encoder_sb(options.verbose)
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@ -116,16 +135,12 @@ class my_top_block(gr.top_block):
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False) # dump raw u vectors
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elif options.protocol == 'ysf':
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ENCODER = op25_repeater.ysf_tx_sb(options.verbose, options.config_file, options.fullrate_mode)
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else:
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print 'protocol [-p] option missing'
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sys.exit(0)
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nfiles = 0
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if options.file1:
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nfiles += 1
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if options.file2 and options.protocol == 'dmr':
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nfiles += 1
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if nfiles < max_inputs:
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if nfiles < max_inputs and not options.test:
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AUDIO = audio.source(options.sample_rate, options.audio_input)
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lpf_taps = filter.firdes.low_pass(1.0, options.sample_rate, 3400.0, 3400 * 0.1, filter.firdes.WIN_HANN)
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audio_rate = 8000
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@ -140,7 +155,7 @@ class my_top_block(gr.top_block):
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AMP1 = blocks.multiply_const_ff(options.gain)
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F2S1 = blocks.float_to_short()
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self.connect(IN1, S2F1, AMP1, F2S1, ENCODER)
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else:
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elif not options.test:
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self.connect(AUDIO_F2S, ENCODER)
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if options.protocol == 'dmr':
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@ -161,15 +176,45 @@ class my_top_block(gr.top_block):
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if options.output_file:
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OUT = blocks.file_sink(gr.sizeof_float, options.output_file)
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else:
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elif not options.args:
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OUT = audio.sink(options.sample_rate, options.audio_output)
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if options.protocol == 'dmr':
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if options.protocol == 'dmr' and not options.test:
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self.connect(DMR, MOD)
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else:
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self.connect(ENCODER, MOD)
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self.connect(MOD, AMP, OUT)
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if options.args:
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self.setup_sdr_output(options, mod_adjust[options.protocol])
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interp = filter.rational_resampler_fff(options.if_rate / options.sample_rate, 1)
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self.connect(MOD, AMP, interp, self.fm_modulator, self.u)
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else:
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self.connect(MOD, AMP, OUT)
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def setup_sdr_output(self, options, adjustment):
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import osmosdr
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max_dev = 12.5e3
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k = 2 * math.pi * max_dev / options.if_rate
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self.fm_modulator = analog.frequency_modulator_fc (k * adjustment)
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self.u = osmosdr.sink (options.args)
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gain_names = self.u.get_gain_names()
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for name in gain_names:
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range = self.u.get_gain_range(name)
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print "gain: name: %s range: start %d stop %d step %d" % (name, range[0].start(), range[0].stop(), range[0].step())
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if options.gains:
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for tuple in options.gains.split(","):
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name, gain = tuple.split(":")
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gain = int(gain)
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print "setting gain %s to %d" % (name, gain)
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self.u.set_gain(gain, name)
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print 'setting sample rate'
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self.u.set_sample_rate(options.if_rate)
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self.u.set_center_freq(options.frequency)
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self.u.set_freq_corr(options.frequency_correction)
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#self.u.set_bandwidth(options.if_rate)
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if __name__ == "__main__":
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print 'Multiprotocol Digital Voice TX (C) Copyright 2017 Max H. Parke KA1RBI'
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