Commander: allow disabling RC loss failsafe for mission, hold, offboard independently

src/modules/commander/commander_params.c

@@ -850,6 +850,8 @@ PARAM_DEFINE_INT32(COM_TAKEOFF_ACT, 0);
  * @value 3 Land mode
  * @value 5 Terminate
  * @value 6 Lockdown
+ * @min 0
+ * @max 6
  *
  * @group Commander
  */
@@ -862,17 +864,32 @@ PARAM_DEFINE_INT32(NAV_DLL_ACT, 0);
  * set by COM_RC_LOSS_T in seconds. If RC input checks have been disabled
  * by setting the COM_RC_IN_MODE param it will not be triggered.
  *
- * @value 0 Disabled
  * @value 1 Hold mode
  * @value 2 Return mode
  * @value 3 Land mode
  * @value 5 Terminate
  * @value 6 Lockdown
+ * @min 1
+ * @max 6
  *
  * @group Commander
  */
 PARAM_DEFINE_INT32(NAV_RCL_ACT, 2);
 
+/**
+ * RC loss exceptions
+ *
+ * Specify modes in which RC loss is ignored and the failsafe action not triggered.
+ *
+ * @min 0
+ * @max 31
+ * @bit 0 Mission
+ * @bit 1 Hold
+ * @bit 2 Offboard
+ * @group Commander
+ */
+PARAM_DEFINE_INT32(COM_RCL_EXCEPT, 0);
+
 /**
  * Flag to enable obstacle avoidance.
  *