46 lines
1.7 KiB
C
46 lines
1.7 KiB
C
// Part of dump1090, a Mode S message decoder for RTLSDR devices.
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//
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// sdr.h: generic SDR infrastructure (header)
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//
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// Copyright (c) 2016-2017 Oliver Jowett <oliver@mutability.co.uk>
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// Copyright (c) 2017 FlightAware LLC
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//
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// This file is free software: you may copy, redistribute and/or modify it
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// under the terms of the GNU General Public License as published by the
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// Free Software Foundation, either version 2 of the License, or (at your
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// option) any later version.
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//
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// This file is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public 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 this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef SDR_H
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#define SDR_H
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// Common interface to different SDR inputs.
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void sdrInitConfig();
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void sdrShowHelp();
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bool sdrHandleOption(int argc, char **argv, int *jptr);
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bool sdrOpen();
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void sdrRun();
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void sdrStop();
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void sdrClose();
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// Gain control
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int sdrGetGain(); // return current gain step 0..N, or -1 if gain control is not supported
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int sdrGetMaxGain(); // return maximum gain step, or -1 if gain control is not supported
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double sdrGetGainDb(int step); // return gain in dB for the given gain step, or 0.0 if gain control is not supported
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int sdrSetGain(int step); // set gain step; return actual gain step used, or -1 if gain control is not supported
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// Call periodically from the SDR read thread to update reader thread CPU stats:
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void sdrMonitor();
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// Retrieve CPU stats and add new CPU time to *addTo
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void sdrUpdateCPUTime(struct timespec *addTo);
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#endif
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