External antenna configuration: proposal for #4285 (#6656)

External antenna configuration

radio/src/pulses/modules_helpers.cpp

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) OpenTX
+ *
+ * Based on code named
+ *   th9x - http://code.google.com/p/th9x
+ *   er9x - http://code.google.com/p/er9x
+ *   gruvin9x - http://code.google.com/p/gruvin9x
+ *
+ * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "opentx.h"
+
+#if defined(EXTERNAL_ANTENNA)
+bool isExternalAntennaEnabled()
+{
+  switch (g_eeGeneral.antennaMode) {
+    case ANTENNA_MODE_INTERNAL:
+      return false;
+    case ANTENNA_MODE_EXTERNAL:
+      return true;
+    case ANTENNA_MODE_PER_MODEL:
+      switch (g_model.moduleData[INTERNAL_MODULE].pxx.antennaMode) {
+        case ANTENNA_MODE_EXTERNAL:
+        case ANTENNA_MODE_ASK:
+          return globalData.externalAntennaEnabled;
+        default:
+          return false;
+      }
+    default:
+      return globalData.externalAntennaEnabled;
+  }
+}
+#endif