feat(radio): OS compatibility layer (#5840)

radio/src/os/async_native.cpp

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) EdgeTX
+ *
+ * Based on code named
+ *   opentx - https://github.com/opentx/opentx
+ *   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 "async.h"
+#include "timer_pthread_impl.h"
+
+bool async_call(async_func_t func, volatile bool* excl_flag, void* param1,
+                uint32_t param2)
+{
+  if (excl_flag && *excl_flag) return false;
+  timer_queue::instance().pend_function(func, param1, param2);
+  if (excl_flag) *excl_flag = true;
+  return true;
+}
+
+bool async_call_isr(async_func_t func, volatile bool* excl_flag, void* param1,
+                    uint32_t param2)
+{
+  return async_call(func, excl_flag, param1, param2);
+}