Merge branch 'master' into vfr_fix

src/modules/mavlink/mavlink_main.cpp

@@ -763,7 +763,7 @@ Mavlink::send_message(const uint8_t msgid, const void *msg)
 	_last_write_try_time = hrt_absolute_time();
 
 	/* check if there is space in the buffer, let it overflow else */
-	if (buf_free < TX_BUFFER_GAP) {
+	if ((buf_free < TX_BUFFER_GAP) || (buf_free < packet_len)) {
 		/* no enough space in buffer to send */
 		count_txerr();
 		count_txerrbytes(packet_len);
@@ -1634,7 +1634,7 @@ Mavlink::start(int argc, char *argv[])
 	task_spawn_cmd(buf,
 		       SCHED_DEFAULT,
 		       SCHED_PRIORITY_DEFAULT,
-		       2700,
+		       2900,
 		       (main_t)&Mavlink::start_helper,
 		       (const char **)argv);
 

src/modules/mavlink/mavlink_messages.cpp

@@ -341,11 +341,18 @@ private:
 	/* do not allow top copying this class */
 	MavlinkStreamStatustext(MavlinkStreamStatustext &);
 	MavlinkStreamStatustext& operator = (const MavlinkStreamStatustext &);
+	FILE *fp = nullptr;
 
 protected:
 	explicit MavlinkStreamStatustext(Mavlink *mavlink) : MavlinkStream(mavlink)
 	{}
 
+	~MavlinkStreamStatustext() {
+		if (fp) {
+			fclose(fp);
+		}
+	}
+
 	void send(const hrt_abstime t)
 	{
 		if (!mavlink_logbuffer_is_empty(_mavlink->get_logbuffer())) {
@@ -359,6 +366,31 @@ protected:
 				strncpy(msg.text, logmsg.text, sizeof(msg.text));
 
 				_mavlink->send_message(MAVLINK_MSG_ID_STATUSTEXT, &msg);
+
+				/* write log messages in first instance to disk */
+				if (_mavlink->get_instance_id() == 0) {
+					if (fp) {
+						fputs(msg.text, fp);
+						fputs("\n", fp);
+						fsync(fileno(fp));
+					} else {
+						/* string to hold the path to the log */
+						char log_file_name[32] = "";
+						char log_file_path[64] = "";
+
+						timespec ts;
+						clock_gettime(CLOCK_REALTIME, &ts);
+						/* use GPS time for log file naming, e.g. /fs/microsd/2014-01-19/19_37_52.bin */
+						time_t gps_time_sec = ts.tv_sec + (ts.tv_nsec / 1e9);
+						struct tm t;
+						gmtime_r(&gps_time_sec, &t);
+
+						// XXX we do not want to interfere here with the SD log app
+						strftime(log_file_name, sizeof(log_file_name), "msgs_%Y_%m_%d_%H_%M_%S.txt", &t);
+						snprintf(log_file_path, sizeof(log_file_path), "/fs/microsd/%s", log_file_name);
+						fp = fopen(log_file_path, "ab");
+					}
+				}
 			}
 		}
 	}

src/modules/mavlink/mavlink_receiver.cpp

@@ -391,11 +391,9 @@ MavlinkReceiver::handle_message_hil_optical_flow(mavlink_message_t *msg)
 
 	f.timestamp = hrt_absolute_time();
 	f.flow_timestamp = flow.time_usec;
-	f.flow_raw_x = flow.flow_x;
-	f.flow_raw_y = flow.flow_y;
-	f.flow_comp_x_m = flow.flow_comp_m_x;
-	f.flow_comp_y_m = flow.flow_comp_m_y;
-	f.ground_distance_m = flow.ground_distance;
+	f.flow_raw_x = flow.integrated_x;
+	f.flow_raw_y = flow.integrated_y;
+	f.ground_distance_m = flow.distance;
 	f.quality = flow.quality;
 	f.sensor_id = flow.sensor_id;
 
@@ -413,7 +411,7 @@ MavlinkReceiver::handle_message_hil_optical_flow(mavlink_message_t *msg)
 	r.timestamp = hrt_absolute_time();
 	r.error_count = 0;
 	r.type = RANGE_FINDER_TYPE_LASER;
-	r.distance = flow.ground_distance;
+	r.distance = flow.distance;
 	r.minimum_distance = 0.0f;
 	r.maximum_distance = 40.0f; // this is set to match the typical range of real sensors, could be made configurable
 	r.valid = (r.distance > r.minimum_distance) && (r.distance < r.maximum_distance);
@@ -1398,7 +1396,7 @@ MavlinkReceiver::receive_start(Mavlink *parent)
 
 	struct sched_param param;
 	(void)pthread_attr_getschedparam(&receiveloop_attr, &param);
-	param.sched_priority = SCHED_PRIORITY_MAX - 40;
+	param.sched_priority = SCHED_PRIORITY_MAX - 80;
 	(void)pthread_attr_setschedparam(&receiveloop_attr, &param);
 
 	pthread_attr_setstacksize(&receiveloop_attr, 2900);