77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
from owrx.source.direct import DirectSource, DirectSourceDeviceDescription
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from owrx.command import Option, Flag
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from owrx.form import Input, DropdownEnum, DropdownInput, CheckboxInput
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from typing import List
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#
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# In order to interface Perseus hardware, we resolve to use the
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# perseustest utility that comes with libperseus-sdr support package.
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# Below the base options used are shown:
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#
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# -p output I/Q samples as 32 bits floating point
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# -d -1 suppress debug messages
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# -a don't test attenuators on startup
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# -t 0 runs indefinitely
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# -o - output samples on stdout
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#
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# As we are already returning I/Q samples as pairs of 32 bits
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# floating points (option -p),no need for further conversions,
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# so the method getFormatConversion(self) is not implemented at all.
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class PerseussdrSource(DirectSource):
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def getCommandMapper(self):
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return (
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super()
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.getCommandMapper()
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.setBase("perseustest -p -d -1 -a -t 0 -o - ")
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.setMappings(
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{
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"samp_rate": Option("-s"),
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"tuner_freq": Option("-f"),
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"attenuator": Option("-u"),
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"adc_preamp": Flag("-m"),
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"adc_dither": Flag("-x"),
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"wideband": Flag("-w"),
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}
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)
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)
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class AttenuatorOptions(DropdownEnum):
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ATTENUATOR_0 = 0
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ATTENUATOR_10 = -10
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ATTENUATOR_20 = -20
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ATTENUATOR_30 = -30
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def __str__(self):
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return "{value} dB".format(value=self.value)
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class PerseussdrDeviceDescription(DirectSourceDeviceDescription):
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def getInputs(self) -> List[Input]:
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return super().getInputs() + [
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DropdownInput("attenuator", "Attenuator", options=AttenuatorOptions),
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CheckboxInput("adc_preamp", "Activate ADC preamp"),
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CheckboxInput("adc_dither", "Enable ADC dithering"),
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CheckboxInput("wideband", "Disable analog filters"),
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]
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def getDeviceOptionalKeys(self):
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# no rf_gain
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return [key for key in super().getDeviceOptionalKeys() if key != "rf_gain"] + [
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"attenuator",
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"adc_preamp",
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"adc_dither",
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"wideband",
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]
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def getProfileOptionalKeys(self):
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return [key for key in super().getProfileOptionalKeys() if key != "rf_gain"] + [
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"attenuator",
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"adc_preamp",
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"adc_dither",
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"wideband",
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]
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