openwebrx-clone/owrx/feature.py
2019-05-12 15:56:18 +02:00

66 lines
2.0 KiB
Python

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