px4io: add RC update monotonic count and cleanup unused

boards/bitcraze/crazyflie/syslink/syslink_main.cpp

@@ -525,16 +525,9 @@ Syslink::handle_raw(syslink_message_t *sys)
 
 		crtp_commander *cmd = (crtp_commander *) &c->data[0];
 
-		input_rc_s rc = {};
-
-		rc.timestamp = hrt_absolute_time();
-		rc.timestamp_last_signal = rc.timestamp;
+		input_rc_s rc{};
+		rc.timestamp_sample = hrt_absolute_time();
 		rc.channel_count = 5;
-		rc.rc_failsafe = false;
-		rc.rc_lost = false;
-		rc.rc_lost_frame_count = 0;
-		rc.rc_total_frame_count = 1;
-		rc.rc_ppm_frame_length = 0;
 		rc.input_source = input_rc_s::RC_INPUT_SOURCE_MAVLINK;
 		rc.rssi = _rssi;
 
@@ -548,6 +541,7 @@ Syslink::handle_raw(syslink_message_t *sys)
 		rc.values[3] = cmd->thrust * 1000 / USHRT_MAX + 1000;
 		rc.values[4] = 1000; // Dummy channel as px4 needs at least 5
 
+		rc.timestamp = hrt_absolute_time();
 		_rc_pub.publish(rc);
 
 	} else if (c->port == CRTP_PORT_MAVLINK) {

boards/emlid/navio2/navio_sysfs_rc_in/NavioSysRCInput.cpp

@@ -119,8 +119,6 @@ void NavioSysRCInput::Run()
 	connected_buf[sizeof(connected_buf) - 1] = '\0';
 	_connected = (atoi(connected_buf) == 1);
 
-	data.rc_lost = !_connected;
-
 	uint64_t timestamp_sample = hrt_absolute_time();
 
 	for (int i = 0; i < CHANNELS; ++i) {
@@ -145,11 +143,11 @@ void NavioSysRCInput::Run()
 		}
 	}
 
-	if (all_zero) {
+	if (all_zero || !_connected) {
 		return;
 	}
 
-	data.timestamp_last_signal = timestamp_sample;
+	data.timestamp_sample = timestamp_sample;
 	data.channel_count = CHANNELS;
 	data.input_source = input_rc_s::RC_INPUT_SOURCE_PX4FMU_PPM;
 	data.timestamp = hrt_absolute_time();