Added options to gain.

Author: shajen

sources/radio/help_structures.h

@@ -49,8 +49,9 @@ struct Gain {
   double min;
   double max;
   double step;
+  std::vector<double> options;
 };
-NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(Gain, name, value, min, max, step)
+NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(Gain, name, value, min, max, step, options)
 
 struct Crontab {
   std::string name;

sources/radio/sdr_device_reader.cpp

@@ -28,7 +28,19 @@ std::vector<Gain> getGains(SoapySDR::Device* sdr) {
         colored(GREEN, "{}", gainRange.minimum()),
         colored(GREEN, "{}", gainRange.maximum()),
         colored(GREEN, "{}", gainRange.step()));
-    gains.emplace_back(gain, gainRange.maximum(), gainRange.minimum(), gainRange.maximum(), gainRange.step());
+    std::vector<double> options;
+    const auto optionsCount = (gainRange.maximum() - gainRange.minimum()) / gainRange.step();
+    if (!std::isnan(optionsCount) && optionsCount < 1000) {
+      for (double value = gainRange.minimum(); value <= gainRange.maximum(); value += gainRange.step()) {
+        options.push_back(value);
+      }
+    } else if (sdr->getDriverKey() == "RTLSDR" && gain == "TUNER") {
+      options = {0.0, 0.9, 1.4, 2.7, 3.7, 7.7, 8.7, 12.5, 14.4, 15.7, 16.6, 19.7, 20.7, 22.9, 25.4, 28.0, 29.7, 32.8, 33.8, 36.4, 37.2, 38.6, 40.2, 42.1, 43.4, 43.9, 44.5, 48.0, 49.6};
+    } else {
+      options.push_back(gainRange.minimum());
+      options.push_back(gainRange.maximum());
+    }
+    gains.emplace_back(gain, gainRange.maximum(), gainRange.minimum(), gainRange.maximum(), gainRange.step(), options);
   }
   std::sort(gains.begin(), gains.end(), [](const Gain& g1, Gain& g2) { return g1.name < g2.name; });
   return gains;
@@ -131,6 +143,7 @@ void SdrDeviceReader::clearDevices(nlohmann::json& json) {
       gain.erase("min");
       gain.erase("max");
       gain.erase("step");
+      gain.erase("options");
     }
   }
 }