drivers/rc_input: support RC_RSSI_PWM_CHAN

src/modules/rc_update/params.c

@@ -2235,3 +2235,61 @@ PARAM_DEFINE_FLOAT(RC_STAB_TH, 0.5f);
  * @group Radio Switches
  */
 PARAM_DEFINE_FLOAT(RC_MAN_TH, 0.75f);
+
+/**
+ * PWM input channel that provides RSSI.
+ *
+ * 0: do not read RSSI from input channel
+ * 1-18: read RSSI from specified input channel
+ *
+ * Specify the range for RSSI input with RC_RSSI_PWM_MIN and RC_RSSI_PWM_MAX parameters.
+ *
+ * @min 0
+ * @max 18
+ * @value 0 Unassigned
+ * @value 1 Channel 1
+ * @value 2 Channel 2
+ * @value 3 Channel 3
+ * @value 4 Channel 4
+ * @value 5 Channel 5
+ * @value 6 Channel 6
+ * @value 7 Channel 7
+ * @value 8 Channel 8
+ * @value 9 Channel 9
+ * @value 10 Channel 10
+ * @value 11 Channel 11
+ * @value 12 Channel 12
+ * @value 13 Channel 13
+ * @value 14 Channel 14
+ * @value 15 Channel 15
+ * @value 16 Channel 16
+ * @value 17 Channel 17
+ * @value 18 Channel 18
+ * @group Radio Calibration
+ *
+ */
+PARAM_DEFINE_INT32(RC_RSSI_PWM_CHAN, 0);
+
+/**
+ * Min input value for RSSI reading.
+ *
+ * Only used if RC_RSSI_PWM_CHAN > 0
+ *
+ * @min 0
+ * @max 2000
+ * @group Radio Calibration
+ *
+ */
+PARAM_DEFINE_INT32(RC_RSSI_PWM_MIN, 1000);
+
+/**
+ * Max input value for RSSI reading.
+ *
+ * Only used if RC_RSSI_PWM_CHAN > 0
+ *
+ * @min 0
+ * @max 2000
+ * @group Radio Calibration
+ *
+ */
+PARAM_DEFINE_INT32(RC_RSSI_PWM_MAX, 2000);