66 lines
2.0 KiB
Python
66 lines
2.0 KiB
Python
import os
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import logging
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logger = logging.getLogger(__name__)
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class UnknownFeatureException(Exception):
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pass
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class FeatureDetector(object):
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features = {
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"core": [ "csdr", "nmux" ],
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"rtl_sdr": [ "rtl_sdr" ],
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"sdrplay": [ "rx_tools" ],
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"hackrf": [ "hackrf_transfer" ]
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}
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def is_available(self, feature):
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return self.has_requirements(self.get_requirements(feature))
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def get_requirements(self, feature):
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try:
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return FeatureDetector.features[feature]
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except KeyError:
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raise UnknownFeatureException("Feature \"{0}\" is not known.".format(feature))
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def has_requirements(self, requirements):
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passed = True
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for requirement in requirements:
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methodname = "has_" + requirement
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if hasattr(self, methodname) and callable(getattr(self, methodname)):
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passed = passed and getattr(self, methodname)()
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else:
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logger.error("detection of requirement {0} not implement. please fix in code!".format(requirement))
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return passed
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def has_csdr(self):
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return os.system("csdr 2> /dev/null") != 32512
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def has_nmux(self):
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return os.system("nmux --help 2> /dev/null") != 32512
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def has_rtl_sdr(self):
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return os.system("rtl_sdr --help 2> /dev/null") != 32512
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def has_rx_tools(self):
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return os.system("rx_sdr --help 2> /dev/null") != 32512
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"""
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To use a HackRF, compile the HackRF host tools from its "stdout" branch:
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git clone https://github.com/mossmann/hackrf/
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cd hackrf
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git fetch
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git checkout origin/stdout
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cd host
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mkdir build
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cd build
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cmake .. -DINSTALL_UDEV_RULES=ON
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make
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sudo make install
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"""
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def has_hackrf_transfer(self):
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# TODO i don't have a hackrf, so somebody doublecheck this.
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# TODO also check if it has the stdout feature
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return os.system("hackrf_transfer --help 2> /dev/null") != 32512
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