void
RCLoss::advance_rcl()
{
switch (_rcl_state) {
case RCL_STATE_NONE:
if (_param_loitertime.get() > 0.0f) {
warnx("RC loss, OBC mode, loiter");
mavlink_log_critical(_navigator->get_mavlink_fd(), "rc loss, loitering");
_rcl_state = RCL_STATE_LOITER;
} else {
warnx("RC loss, OBC mode, slip loiter, terminate");
mavlink_log_critical(_navigator->get_mavlink_fd(), "rc loss, terminating");
_rcl_state = RCL_STATE_TERMINATE;
_navigator->get_mission_result()->stay_in_failsafe = true;
_navigator->set_mission_result_updated();
reset_mission_item_reached();
}
break;
case RCL_STATE_LOITER:
_rcl_state = RCL_STATE_TERMINATE;
warnx("time is up, no RC regain, terminating");
mavlink_log_critical(_navigator->get_mavlink_fd(), "RC not regained, terminating");
_navigator->get_mission_result()->stay_in_failsafe = true;
_navigator->set_mission_result_updated();
reset_mission_item_reached();
break;
case RCL_STATE_TERMINATE:
warnx("rcl end");
_rcl_state = RCL_STATE_END;
break;
default:
break;
}
}
void
DataLinkLoss::advance_dll()
{
switch (_dll_state) {
case DLL_STATE_NONE:
/* Check the number of data link losses. If above home fly home directly */
/* if number of data link losses limit is not reached fly to comms hold wp */
if (_navigator->get_vstatus()->data_link_lost_counter > _param_nav_dll_n.get()) {
warnx("%d data link losses, limit is %d, fly to airfield home",
_navigator->get_vstatus()->data_link_lost_counter, _param_nav_dll_n.get());
mavlink_log_critical(_navigator->get_mavlink_log_pub(), "too many DL losses, fly to airfield home");
_navigator->get_mission_result()->stay_in_failsafe = true;
_navigator->set_mission_result_updated();
reset_mission_item_reached();
_dll_state = DLL_STATE_FLYTOAIRFIELDHOMEWP;
} else {
if (!_param_nav_dll_chsk.get()) {
warnx("fly to comms hold, datalink loss counter: %d", _navigator->get_vstatus()->data_link_lost_counter);
mavlink_log_critical(_navigator->get_mavlink_log_pub(), "fly to comms hold");
_dll_state = DLL_STATE_FLYTOCOMMSHOLDWP;
} else {
/* comms hold wp not active, fly to airfield home directly */
warnx("Skipping comms hold wp. Flying directly to airfield home");
mavlink_log_critical(_navigator->get_mavlink_log_pub(), "fly to airfield home, comms hold skipped");
_dll_state = DLL_STATE_FLYTOAIRFIELDHOMEWP;
}
}
break;
case DLL_STATE_FLYTOCOMMSHOLDWP:
warnx("fly to airfield home");
mavlink_log_critical(_navigator->get_mavlink_log_pub(), "fly to airfield home");
_dll_state = DLL_STATE_FLYTOAIRFIELDHOMEWP;
_navigator->get_mission_result()->stay_in_failsafe = true;
_navigator->set_mission_result_updated();
reset_mission_item_reached();
break;
case DLL_STATE_FLYTOAIRFIELDHOMEWP:
_dll_state = DLL_STATE_TERMINATE;
warnx("time is up, state should have been changed manually by now");
mavlink_log_critical(_navigator->get_mavlink_log_pub(), "no manual control, terminating");
_navigator->get_mission_result()->stay_in_failsafe = true;
_navigator->set_mission_result_updated();
reset_mission_item_reached();
break;
case DLL_STATE_TERMINATE:
warnx("dll end");
_dll_state = DLL_STATE_END;
break;
default:
break;
}
}
void
GpsFailure::set_gpsf_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
/* Set pos sp triplet to invalid to stop pos controller */
pos_sp_triplet->previous.valid = false;
pos_sp_triplet->current.valid = false;
pos_sp_triplet->next.valid = false;
switch (_gpsf_state) {
case GPSF_STATE_TERMINATE: {
/* Request flight termination from the commander */
_navigator->get_mission_result()->flight_termination = true;
_navigator->set_mission_result_updated();
warnx("gps fail: request flight termination");
}
default:
break;
}
reset_mission_item_reached();
_navigator->set_position_setpoint_triplet_updated();
}
void
Mission::set_mission_item_reached()
{
_navigator->get_mission_result()->reached = true;
_navigator->get_mission_result()->seq_reached = _current_offboard_mission_index;
_navigator->set_mission_result_updated();
reset_mission_item_reached();
}
void
RCLoss::set_rcl_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
pos_sp_triplet->previous = pos_sp_triplet->current;
_navigator->set_can_loiter_at_sp(false);
switch (_rcl_state) {
case RCL_STATE_LOITER: {
_mission_item.lat = _navigator->get_global_position()->lat;
_mission_item.lon = _navigator->get_global_position()->lon;
_mission_item.altitude = _navigator->get_global_position()->alt;
_mission_item.altitude_is_relative = false;
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.nav_cmd = NAV_CMD_LOITER_TIME_LIMIT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = _param_loitertime.get() < 0.0f ? 0.0f : _param_loitertime.get();
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
break;
}
case RCL_STATE_TERMINATE: {
/* Request flight termination from the commander */
_navigator->get_mission_result()->flight_termination = true;
_navigator->set_mission_result_updated();
warnx("rc not recovered: request flight termination");
pos_sp_triplet->previous.valid = false;
pos_sp_triplet->current.valid = false;
pos_sp_triplet->next.valid = false;
break;
}
default:
break;
}
reset_mission_item_reached();
/* convert mission item to current position setpoint and make it valid */
mission_apply_limitation(_mission_item);
mission_item_to_position_setpoint(_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
_navigator->set_position_setpoint_triplet_updated();
}
void FollowTarget::reset_target_validity()
{
_yaw_rate = NAN;
_previous_target_motion = {};
_current_target_motion = {};
_target_updates = 0;
_current_vel.zero();
_step_vel.zero();
_est_target_vel.zero();
_target_distance.zero();
_target_position_offset.zero();
reset_mission_item_reached();
_follow_target_state = SET_WAIT_FOR_TARGET_POSITION;
}
void
EngineFailure::set_ef_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
/* make sure we have the latest params */
updateParams();
set_previous_pos_setpoint();
_navigator->set_can_loiter_at_sp(false);
switch (_ef_state) {
case EF_STATE_LOITERDOWN: {
//XXX create mission item at ground (below?) here
_mission_item.lat = _navigator->get_global_position()->lat;
_mission_item.lon = _navigator->get_global_position()->lon;
_mission_item.altitude_is_relative = false;
//XXX setting altitude to a very low value, evaluate other options
_mission_item.altitude = _navigator->get_home_position()->alt - 1000.0f;
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_LOITER_UNLIMITED;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
break;
}
default:
break;
}
reset_mission_item_reached();
/* convert mission item to current position setpoint and make it valid */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
_navigator->set_position_setpoint_triplet_updated();
}
void
Takeoff::on_activation()
{
/* set current mission item to Takeoff */
set_takeoff_item(&_mission_item, _param_min_alt.get());
_navigator->get_mission_result()->reached = false;
_navigator->get_mission_result()->finished = false;
_navigator->set_mission_result_updated();
reset_mission_item_reached();
/* convert mission item to current setpoint */
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
pos_sp_triplet->previous.valid = false;
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->current.yaw = _navigator->get_home_position()->yaw;
pos_sp_triplet->current.yaw_valid = true;
pos_sp_triplet->next.valid = false;
_navigator->set_can_loiter_at_sp(true);
_navigator->set_position_setpoint_triplet_updated();
}
void
DataLinkLoss::set_dll_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
set_previous_pos_setpoint();
_navigator->set_can_loiter_at_sp(false);
switch (_dll_state) {
case DLL_STATE_FLYTOCOMMSHOLDWP: {
_mission_item.lat = (double)(_param_commsholdlat.get()) * 1.0e-7;
_mission_item.lon = (double)(_param_commsholdlon.get()) * 1.0e-7;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = _param_commsholdalt.get();
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_LOITER_TIME_LIMIT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = _param_commsholdwaittime.get() < 0.0f ? 0.0f : _param_commsholdwaittime.get();
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
break;
}
case DLL_STATE_FLYTOAIRFIELDHOMEWP: {
_mission_item.lat = (double)(_param_airfieldhomelat.get()) * 1.0e-7;
_mission_item.lon = (double)(_param_airfieldhomelon.get()) * 1.0e-7;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = _param_airfieldhomealt.get();
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_LOITER_TIME_LIMIT;
_mission_item.time_inside = _param_airfieldhomewaittime.get() < 0.0f ? 0.0f : _param_airfieldhomewaittime.get();
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
break;
}
case DLL_STATE_TERMINATE: {
/* Request flight termination from the commander */
_navigator->get_mission_result()->flight_termination = true;
_navigator->set_mission_result_updated();
reset_mission_item_reached();
warnx("not switched to manual: request flight termination");
pos_sp_triplet->previous.valid = false;
pos_sp_triplet->current.valid = false;
pos_sp_triplet->next.valid = false;
break;
}
default:
break;
}
reset_mission_item_reached();
/* convert mission item to current position setpoint and make it valid */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
_navigator->set_position_setpoint_triplet_updated();
}
void
Mission::set_mission_items()
{
/* make sure param is up to date */
updateParams();
/* reset the altitude foh logic, if altitude foh is enabled (param) a new foh element starts now */
altitude_sp_foh_reset();
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
/* set previous position setpoint to current */
set_previous_pos_setpoint();
/* Copy previous mission item altitude (can be extended to a copy of the full mission item if needed) */
if (pos_sp_triplet->previous.valid) {
_mission_item_previous_alt = get_absolute_altitude_for_item(_mission_item);
}
/* the home dist check provides user feedback, so we initialize it to this */
bool user_feedback_done = false;
/* try setting onboard mission item */
if (_param_onboard_enabled.get() && read_mission_item(true, true, &_mission_item)) {
/* if mission type changed, notify */
if (_mission_type != MISSION_TYPE_ONBOARD) {
mavlink_log_critical(_navigator->get_mavlink_fd(), "onboard mission now running");
user_feedback_done = true;
}
_mission_type = MISSION_TYPE_ONBOARD;
/* try setting offboard mission item */
} else if (read_mission_item(false, true, &_mission_item)) {
/* if mission type changed, notify */
if (_mission_type != MISSION_TYPE_OFFBOARD) {
mavlink_log_info(_navigator->get_mavlink_fd(), "offboard mission now running");
user_feedback_done = true;
}
_mission_type = MISSION_TYPE_OFFBOARD;
} else {
/* no mission available or mission finished, switch to loiter */
if (_mission_type != MISSION_TYPE_NONE) {
/* https://en.wikipedia.org/wiki/Loiter_(aeronautics) */
mavlink_log_critical(_navigator->get_mavlink_fd(), "mission finished, loitering");
user_feedback_done = true;
/* use last setpoint for loiter */
_navigator->set_can_loiter_at_sp(true);
}
_mission_type = MISSION_TYPE_NONE;
/* set loiter mission item and ensure that there is a minimum clearance from home */
set_loiter_item(&_mission_item, _param_takeoff_alt.get());
/* update position setpoint triplet */
pos_sp_triplet->previous.valid = false;
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
/* reuse setpoint for LOITER only if it's not IDLE */
_navigator->set_can_loiter_at_sp(pos_sp_triplet->current.type == position_setpoint_s::SETPOINT_TYPE_LOITER);
set_mission_finished();
if (!user_feedback_done) {
/* only tell users that we got no mission if there has not been any
* better, more specific feedback yet
* https://en.wikipedia.org/wiki/Loiter_(aeronautics)
*/
if (_navigator->get_vstatus()->condition_landed) {
/* landed, refusing to take off without a mission */
mavlink_log_critical(_navigator->get_mavlink_fd(), "no valid mission available, refusing takeoff");
} else {
mavlink_log_critical(_navigator->get_mavlink_fd(), "no valid mission available, loitering");
}
user_feedback_done = true;
}
_navigator->set_position_setpoint_triplet_updated();
return;
}
if (pos_sp_triplet->current.valid) {
_on_arrival_yaw = _mission_item.yaw;
}
/* do takeoff on first waypoint for rotary wing vehicles */
if (_navigator->get_vstatus()->is_rotary_wing) {
/* force takeoff if landed (additional protection) */
if (!_takeoff && _navigator->get_vstatus()->condition_landed) {
_need_takeoff = true;
}
/* new current mission item set, check if we need takeoff */
if (_need_takeoff && (
_mission_item.nav_cmd == NAV_CMD_TAKEOFF ||
_mission_item.nav_cmd == NAV_CMD_WAYPOINT ||
_mission_item.nav_cmd == NAV_CMD_LOITER_TIME_LIMIT ||
_mission_item.nav_cmd == NAV_CMD_LOITER_TURN_COUNT ||
_mission_item.nav_cmd == NAV_CMD_LOITER_UNLIMITED ||
_mission_item.nav_cmd == NAV_CMD_RETURN_TO_LAUNCH)) {
_takeoff = true;
_need_takeoff = false;
}
}
if (_takeoff) {
/* do takeoff before going to setpoint */
/* set mission item as next position setpoint */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->next);
/* next SP is not takeoff anymore */
pos_sp_triplet->next.type = position_setpoint_s::SETPOINT_TYPE_POSITION;
/* calculate takeoff altitude */
float takeoff_alt = get_absolute_altitude_for_item(_mission_item);
/* takeoff to at least NAV_TAKEOFF_ALT above home/ground, even if first waypoint is lower */
if (_navigator->get_vstatus()->condition_landed) {
takeoff_alt = fmaxf(takeoff_alt, _navigator->get_global_position()->alt + _param_takeoff_alt.get());
} else {
takeoff_alt = fmaxf(takeoff_alt, _navigator->get_home_position()->alt + _param_takeoff_alt.get());
}
/* check if we already above takeoff altitude */
if (_navigator->get_global_position()->alt < takeoff_alt) {
mavlink_log_critical(_navigator->get_mavlink_fd(), "takeoff to %.1f meters above home", (double)(takeoff_alt - _navigator->get_home_position()->alt));
_mission_item.nav_cmd = NAV_CMD_TAKEOFF;
_mission_item.lat = _navigator->get_global_position()->lat;
_mission_item.lon = _navigator->get_global_position()->lon;
_mission_item.yaw = NAN;
_mission_item.altitude = takeoff_alt;
_mission_item.altitude_is_relative = false;
_mission_item.autocontinue = true;
_mission_item.time_inside = 0;
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
_navigator->set_position_setpoint_triplet_updated();
return;
} else {
/* skip takeoff */
_takeoff = false;
}
}
if (_takeoff_finished) {
/* we just finished takeoff */
/* in case we still have to move to the takeoff waypoint we need a waypoint mission item */
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_takeoff_finished = false;
}
/* set current position setpoint from mission item */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
/* require takeoff after landing or idle */
if (pos_sp_triplet->current.type == position_setpoint_s::SETPOINT_TYPE_LAND || pos_sp_triplet->current.type == position_setpoint_s::SETPOINT_TYPE_IDLE) {
_need_takeoff = true;
}
_navigator->set_can_loiter_at_sp(false);
reset_mission_item_reached();
if (_mission_type == MISSION_TYPE_OFFBOARD) {
set_current_offboard_mission_item();
}
// TODO: report onboard mission item somehow
if (_mission_item.autocontinue && _mission_item.time_inside <= 0.001f) {
/* try to read next mission item */
struct mission_item_s mission_item_next;
if (read_mission_item(_mission_type == MISSION_TYPE_ONBOARD, false, &mission_item_next)) {
/* got next mission item, update setpoint triplet */
mission_item_to_position_setpoint(&mission_item_next, &pos_sp_triplet->next);
} else {
/* next mission item is not available */
pos_sp_triplet->next.valid = false;
}
} else {
/* vehicle will be paused on current waypoint, don't set next item */
pos_sp_triplet->next.valid = false;
}
/* Save the distance between the current sp and the previous one */
if (pos_sp_triplet->current.valid && pos_sp_triplet->previous.valid) {
_distance_current_previous = get_distance_to_next_waypoint(pos_sp_triplet->current.lat,
pos_sp_triplet->current.lon,
pos_sp_triplet->previous.lat,
pos_sp_triplet->previous.lon);
}
_navigator->set_position_setpoint_triplet_updated();
}
void
Delivery::set_delivery_items()
{
// set the parameters needed for getting to the destination
if (delivery_status == DELIV_ENROUTE) {
set_mission_items();
} else if (delivery_status == DELIV_DROPOFF) {
mavlink_log_critical(_navigator->get_mavlink_fd(), "Setting descent mission item");
// setting the mission items for a descent to the _drop_alt
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
/* make sure we have the latest params */
updateParams();
set_previous_pos_setpoint();
_navigator->set_can_loiter_at_sp(false);
// mission_item to descend to _drop_alt
_mission_item.lat = _navigator->get_global_position()->lat;
_mission_item.lon = _navigator->get_global_position()->lon;
_mission_item.altitude_is_relative = false;
// .altitude needs to be referenced to location altitude, not home altitude
_mission_item.altitude = _navigator->get_home_position()->alt + _drop_alt;
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = 10.0f;
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = false;
_mission_item.origin = ORIGIN_ONBOARD;
mavlink_log_critical(_navigator->get_mavlink_fd(), "DELIVERY: descend to %d m (%d m above destination)",
(int)(_mission_item.altitude),
(int)(_mission_item.altitude - _navigator->get_home_position()->alt));
reset_mission_item_reached();
/* convert mission item to current position setpoint and make it valid */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
_navigator->set_position_setpoint_triplet_updated();
} else if (delivery_status == DELIV_RETURN) {
// setting the proper _rtl_state for current position
if (_navigator->get_global_position()->alt < _navigator->get_home_position()->alt
+ _param_return_alt.get()) {
_rtl_state = RTL_STATE_CLIMB;
/* otherwise go straight to return */
} else {
/* set altitude setpoint to current altitude */
_rtl_state = RTL_STATE_RETURN;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = _navigator->get_global_position()->alt;
}
set_rtl_item();
}
_first_run = false;
_complete = false;
}
void
Delivery::set_rtl_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
/* make sure we have the latest params */
updateParams();
set_previous_pos_setpoint();
_navigator->set_can_loiter_at_sp(false);
switch (_rtl_state) {
case RTL_STATE_CLIMB: {
float climb_alt = _navigator->get_home_position()->alt + _param_return_alt.get();
_mission_item.lat = _navigator->get_global_position()->lat;
_mission_item.lon = _navigator->get_global_position()->lon;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = climb_alt;
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = 0.0f;
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
mavlink_log_critical(_navigator->get_mavlink_fd(), "RTL: climb to %d m (%d m above home)",
(int)(climb_alt),
(int)(climb_alt - _navigator->get_home_position()->alt));
break;
}
case RTL_STATE_RETURN: {
_mission_item.lat = _navigator->get_home_position()->lat;
_mission_item.lon = _navigator->get_home_position()->lon;
// don't change altitude
if (pos_sp_triplet->previous.valid) {
/* if previous setpoint is valid then use it to calculate heading to home */
_mission_item.yaw = get_bearing_to_next_waypoint(
pos_sp_triplet->previous.lat, pos_sp_triplet->previous.lon,
_mission_item.lat, _mission_item.lon);
} else {
/* else use current position */
_mission_item.yaw = get_bearing_to_next_waypoint(
_navigator->get_global_position()->lat, _navigator->get_global_position()->lon,
_mission_item.lat, _mission_item.lon);
}
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = 0.0f;
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
mavlink_log_critical(_navigator->get_mavlink_fd(), "RTL: return at %d m (%d m above home)",
(int)(_mission_item.altitude),
(int)(_mission_item.altitude - _navigator->get_home_position()->alt));
break;
}
case RTL_STATE_DESCEND: {
_mission_item.lat = _navigator->get_home_position()->lat;
_mission_item.lon = _navigator->get_home_position()->lon;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = _navigator->get_home_position()->alt + _param_descend_alt.get();
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_LOITER_TIME_LIMIT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = 0.0f;
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = false;
_mission_item.origin = ORIGIN_ONBOARD;
mavlink_log_critical(_navigator->get_mavlink_fd(), "RTL: descend to %d m (%d m above home)",
(int)(_mission_item.altitude),
(int)(_mission_item.altitude - _navigator->get_home_position()->alt));
break;
}
case RTL_STATE_LOITER: {
bool autoland = _param_land_delay.get() > -DELAY_SIGMA;
_mission_item.lat = _navigator->get_home_position()->lat;
_mission_item.lon = _navigator->get_home_position()->lon;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = _navigator->get_home_position()->alt + _param_descend_alt.get();
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = autoland ? NAV_CMD_LOITER_TIME_LIMIT : NAV_CMD_LOITER_UNLIMITED;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = _param_land_delay.get() < 0.0f ? 0.0f : _param_land_delay.get();
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = autoland;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
if (autoland) {
mavlink_log_critical(_navigator->get_mavlink_fd(), "RTL: loiter %.1fs", (double)_mission_item.time_inside);
} else {
mavlink_log_critical(_navigator->get_mavlink_fd(), "RTL: completed, loiter");
}
break;
}
case RTL_STATE_LAND: {
_mission_item.lat = _navigator->get_home_position()->lat;
_mission_item.lon = _navigator->get_home_position()->lon;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = _navigator->get_home_position()->alt;
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_LAND;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = 0.0f;
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
mavlink_log_critical(_navigator->get_mavlink_fd(), "RTL: land at home");
break;
}
case RTL_STATE_LANDED: {
_mission_item.lat = _navigator->get_home_position()->lat;
_mission_item.lon = _navigator->get_home_position()->lon;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = _navigator->get_home_position()->alt;
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_IDLE;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = 0.0f;
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
mavlink_log_critical(_navigator->get_mavlink_fd(), "RTL: completed, landed");
break;
}
default:
break;
}
reset_mission_item_reached();
/* convert mission item to current position setpoint and make it valid */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
_navigator->set_position_setpoint_triplet_updated();
}
void
Mission::set_mission_items()
{
/* make sure param is up to date */
updateParams();
/* reset the altitude foh (first order hold) logic, if altitude foh is enabled (param) a new foh element starts now */
altitude_sp_foh_reset();
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
/* the home dist check provides user feedback, so we initialize it to this */
bool user_feedback_done = false;
/* mission item that comes after current if available */
struct mission_item_s mission_item_next_position;
bool has_next_position_item = false;
work_item_type new_work_item_type = WORK_ITEM_TYPE_DEFAULT;
/* copy information about the previous mission item */
if (item_contains_position(&_mission_item) && pos_sp_triplet->current.valid) {
/* Copy previous mission item altitude */
_mission_item_previous_alt = get_absolute_altitude_for_item(_mission_item);
}
/* try setting onboard mission item */
if (_param_onboard_enabled.get()
&& prepare_mission_items(true, &_mission_item, &mission_item_next_position, &has_next_position_item)) {
/* if mission type changed, notify */
if (_mission_type != MISSION_TYPE_ONBOARD) {
mavlink_log_info(_navigator->get_mavlink_log_pub(), "Executing internal mission");
user_feedback_done = true;
}
_mission_type = MISSION_TYPE_ONBOARD;
/* try setting offboard mission item */
} else if (prepare_mission_items(false, &_mission_item, &mission_item_next_position, &has_next_position_item)) {
/* if mission type changed, notify */
if (_mission_type != MISSION_TYPE_OFFBOARD) {
mavlink_log_info(_navigator->get_mavlink_log_pub(), "Executing mission");
user_feedback_done = true;
}
_mission_type = MISSION_TYPE_OFFBOARD;
} else {
/* no mission available or mission finished, switch to loiter */
if (_mission_type != MISSION_TYPE_NONE) {
if (_navigator->get_land_detected()->landed) {
mavlink_log_info(_navigator->get_mavlink_log_pub(), "mission finished, landed");
} else {
/* https://en.wikipedia.org/wiki/Loiter_(aeronautics) */
mavlink_log_info(_navigator->get_mavlink_log_pub(), "mission finished, loitering");
/* use last setpoint for loiter */
_navigator->set_can_loiter_at_sp(true);
}
user_feedback_done = true;
}
_mission_type = MISSION_TYPE_NONE;
/* set loiter mission item and ensure that there is a minimum clearance from home */
set_loiter_item(&_mission_item, _param_takeoff_alt.get());
/* update position setpoint triplet */
pos_sp_triplet->previous.valid = false;
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
/* reuse setpoint for LOITER only if it's not IDLE */
_navigator->set_can_loiter_at_sp(pos_sp_triplet->current.type == position_setpoint_s::SETPOINT_TYPE_LOITER);
set_mission_finished();
if (!user_feedback_done) {
/* only tell users that we got no mission if there has not been any
* better, more specific feedback yet
* https://en.wikipedia.org/wiki/Loiter_(aeronautics)
*/
if (_navigator->get_land_detected()->landed) {
/* landed, refusing to take off without a mission */
mavlink_log_critical(_navigator->get_mavlink_log_pub(), "no valid mission available, refusing takeoff");
} else {
mavlink_log_critical(_navigator->get_mavlink_log_pub(), "no valid mission available, loitering");
}
user_feedback_done = true;
}
_navigator->set_position_setpoint_triplet_updated();
return;
}
/*********************************** handle mission item *********************************************/
/* handle position mission items */
if (item_contains_position(&_mission_item)) {
/* force vtol land */
if (_mission_item.nav_cmd == NAV_CMD_LAND && _navigator->get_vstatus()->is_vtol
&& _param_force_vtol.get() && !_navigator->get_vstatus()->is_rotary_wing) {
_mission_item.nav_cmd = NAV_CMD_VTOL_LAND;
}
/* we have a new position item so set previous position setpoint to current */
set_previous_pos_setpoint();
/* do takeoff before going to setpoint if needed and not already in takeoff */
if (do_need_takeoff() && _work_item_type != WORK_ITEM_TYPE_TAKEOFF) {
new_work_item_type = WORK_ITEM_TYPE_TAKEOFF;
/* use current mission item as next position item */
memcpy(&mission_item_next_position, &_mission_item, sizeof(struct mission_item_s));
mission_item_next_position.nav_cmd = NAV_CMD_WAYPOINT;
has_next_position_item = true;
float takeoff_alt = calculate_takeoff_altitude(&_mission_item);
mavlink_log_info(_navigator->get_mavlink_log_pub(), "takeoff to %.1f meters above home",
(double)(takeoff_alt - _navigator->get_home_position()->alt));
_mission_item.nav_cmd = NAV_CMD_TAKEOFF;
_mission_item.lat = _navigator->get_global_position()->lat;
_mission_item.lon = _navigator->get_global_position()->lon;
/* ignore yaw for takeoff items */
_mission_item.yaw = NAN;
_mission_item.altitude = takeoff_alt;
_mission_item.altitude_is_relative = false;
_mission_item.autocontinue = true;
_mission_item.time_inside = 0;
}
/* if we just did a takeoff navigate to the actual waypoint now */
if (_work_item_type == WORK_ITEM_TYPE_TAKEOFF) {
if (_mission_item.nav_cmd == NAV_CMD_VTOL_TAKEOFF
&& _navigator->get_vstatus()->is_rotary_wing
&& !_navigator->get_land_detected()->landed
&& has_next_position_item) {
/* check if the vtol_takeoff command is on top of us */
if (do_need_move_to_takeoff()) {
new_work_item_type = WORK_ITEM_TYPE_TRANSITON_AFTER_TAKEOFF;
} else {
new_work_item_type = WORK_ITEM_TYPE_DEFAULT;
}
_mission_item.nav_cmd = NAV_CMD_DO_VTOL_TRANSITION;
_mission_item.params[0] = vtol_vehicle_status_s::VEHICLE_VTOL_STATE_FW;
_mission_item.yaw = _navigator->get_global_position()->yaw;
} else {
new_work_item_type = WORK_ITEM_TYPE_DEFAULT;
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
/* ignore yaw here, otherwise it might yaw before heading_sp_update takes over */
_mission_item.yaw = NAN;
}
}
/* takeoff completed and transitioned, move to takeoff wp as fixed wing */
if (_mission_item.nav_cmd == NAV_CMD_VTOL_TAKEOFF
&& _work_item_type == WORK_ITEM_TYPE_TRANSITON_AFTER_TAKEOFF) {
new_work_item_type = WORK_ITEM_TYPE_DEFAULT;
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.autocontinue = true;
_mission_item.time_inside = 0.0f;
}
/* move to land wp as fixed wing */
if (_mission_item.nav_cmd == NAV_CMD_VTOL_LAND
&& _work_item_type == WORK_ITEM_TYPE_DEFAULT
&& !_navigator->get_land_detected()->landed) {
new_work_item_type = WORK_ITEM_TYPE_MOVE_TO_LAND;
/* use current mission item as next position item */
memcpy(&mission_item_next_position, &_mission_item, sizeof(struct mission_item_s));
has_next_position_item = true;
float altitude = _navigator->get_global_position()->alt;
if (pos_sp_triplet->current.valid) {
altitude = pos_sp_triplet->current.alt;
}
_mission_item.altitude = altitude;
_mission_item.altitude_is_relative = false;
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.autocontinue = true;
_mission_item.time_inside = 0;
}
/* transition to MC */
if (_mission_item.nav_cmd == NAV_CMD_VTOL_LAND
&& _work_item_type == WORK_ITEM_TYPE_MOVE_TO_LAND
&& !_navigator->get_vstatus()->is_rotary_wing
&& !_navigator->get_land_detected()->landed) {
_mission_item.nav_cmd = NAV_CMD_DO_VTOL_TRANSITION;
_mission_item.params[0] = vtol_vehicle_status_s::VEHICLE_VTOL_STATE_MC;
_mission_item.autocontinue = true;
new_work_item_type = WORK_ITEM_TYPE_MOVE_TO_LAND_AFTER_TRANSITION;
}
/* move to landing waypoint before descent if necessary */
if (do_need_move_to_land() &&
(_work_item_type == WORK_ITEM_TYPE_DEFAULT ||
_work_item_type == WORK_ITEM_TYPE_MOVE_TO_LAND_AFTER_TRANSITION)) {
new_work_item_type = WORK_ITEM_TYPE_MOVE_TO_LAND;
/* use current mission item as next position item */
memcpy(&mission_item_next_position, &_mission_item, sizeof(struct mission_item_s));
has_next_position_item = true;
/*
* Ignoring waypoint altitude:
* Set altitude to the same as we have now to prevent descending too fast into
* the ground. Actual landing will descend anyway until it touches down.
* XXX: We might want to change that at some point if it is clear to the user
* what the altitude means on this waypoint type.
*/
float altitude = _navigator->get_global_position()->alt;
_mission_item.altitude = altitude;
_mission_item.altitude_is_relative = false;
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.autocontinue = true;
_mission_item.time_inside = 0;
}
/* we just moved to the landing waypoint, now descend */
if (_work_item_type == WORK_ITEM_TYPE_MOVE_TO_LAND
&& _navigator->get_vstatus()->is_rotary_wing) {
new_work_item_type = WORK_ITEM_TYPE_DEFAULT;
}
/* ignore yaw for landing items */
/* XXX: if specified heading for landing is desired we could add another step before the descent
* that aligns the vehicle first */
if (_mission_item.nav_cmd == NAV_CMD_LAND || _mission_item.nav_cmd == NAV_CMD_VTOL_LAND) {
_mission_item.yaw = NAN;
}
/* handle non-position mission items such as commands */
} else {
/* turn towards next waypoint before MC to FW transition */
if (_mission_item.nav_cmd == NAV_CMD_DO_VTOL_TRANSITION
&& _work_item_type != WORK_ITEM_TYPE_ALIGN
&& _navigator->get_vstatus()->is_rotary_wing
&& !_navigator->get_land_detected()->landed
&& has_next_position_item) {
new_work_item_type = WORK_ITEM_TYPE_ALIGN;
set_align_mission_item(&_mission_item, &mission_item_next_position);
}
/* yaw is aligned now */
if (_work_item_type == WORK_ITEM_TYPE_ALIGN) {
new_work_item_type = WORK_ITEM_TYPE_DEFAULT;
set_previous_pos_setpoint();
}
}
/*********************************** set setpoints and check next *********************************************/
/* set current position setpoint from mission item (is protected against non-position items) */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
/* issue command if ready (will do nothing for position mission items) */
issue_command(&_mission_item);
/* set current work item type */
_work_item_type = new_work_item_type;
/* require takeoff after landing or idle */
if (pos_sp_triplet->current.type == position_setpoint_s::SETPOINT_TYPE_LAND
|| pos_sp_triplet->current.type == position_setpoint_s::SETPOINT_TYPE_IDLE) {
_need_takeoff = true;
}
_navigator->set_can_loiter_at_sp(false);
reset_mission_item_reached();
if (_mission_type == MISSION_TYPE_OFFBOARD) {
set_current_offboard_mission_item();
}
// TODO: report onboard mission item somehow
if (_mission_item.autocontinue && _mission_item.time_inside <= 0.001f) {
/* try to process next mission item */
if (has_next_position_item) {
/* got next mission item, update setpoint triplet */
mission_item_to_position_setpoint(&mission_item_next_position, &pos_sp_triplet->next);
} else {
/* next mission item is not available */
pos_sp_triplet->next.valid = false;
}
} else {
/* vehicle will be paused on current waypoint, don't set next item */
pos_sp_triplet->next.valid = false;
}
/* Save the distance between the current sp and the previous one */
if (pos_sp_triplet->current.valid && pos_sp_triplet->previous.valid) {
_distance_current_previous = get_distance_to_next_waypoint(
pos_sp_triplet->current.lat,
pos_sp_triplet->current.lon,
pos_sp_triplet->previous.lat,
pos_sp_triplet->previous.lon);
}
_navigator->set_position_setpoint_triplet_updated();
}
void
RTL::set_rtl_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
/* make sure we have the latest params */
updateParams();
if (!_rtl_start_lock) {
set_previous_pos_setpoint();
}
_navigator->set_can_loiter_at_sp(false);
switch (_rtl_state) {
case RTL_STATE_CLIMB: {
float climb_alt = _navigator->get_home_position()->alt + _param_return_alt.get();
_mission_item.lat = _navigator->get_global_position()->lat;
_mission_item.lon = _navigator->get_global_position()->lon;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = climb_alt;
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: climb to %d m (%d m above home)",
(int)(climb_alt),
(int)(climb_alt - _navigator->get_home_position()->alt));
break;
}
case RTL_STATE_RETURN: {
_mission_item.lat = _navigator->get_home_position()->lat;
_mission_item.lon = _navigator->get_home_position()->lon;
// don't change altitude
// use home yaw if close to home
/* check if we are pretty close to home already */
float home_dist = get_distance_to_next_waypoint(_navigator->get_home_position()->lat,
_navigator->get_home_position()->lon,
_navigator->get_global_position()->lat, _navigator->get_global_position()->lon);
if (home_dist < _param_rtl_min_dist.get()) {
_mission_item.yaw = _navigator->get_home_position()->yaw;
} else {
if (pos_sp_triplet->previous.valid) {
/* if previous setpoint is valid then use it to calculate heading to home */
_mission_item.yaw = get_bearing_to_next_waypoint(
pos_sp_triplet->previous.lat, pos_sp_triplet->previous.lon,
_mission_item.lat, _mission_item.lon);
} else {
/* else use current position */
_mission_item.yaw = get_bearing_to_next_waypoint(
_navigator->get_global_position()->lat, _navigator->get_global_position()->lon,
_mission_item.lat, _mission_item.lon);
}
}
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: return at %d m (%d m above home)",
(int)(_mission_item.altitude),
(int)(_mission_item.altitude - _navigator->get_home_position()->alt));
_rtl_start_lock = true;
break;
}
case RTL_STATE_TRANSITION_TO_MC: {
_mission_item.nav_cmd = NAV_CMD_DO_VTOL_TRANSITION;
_mission_item.params[0] = vtol_vehicle_status_s::VEHICLE_VTOL_STATE_MC;
break;
}
case RTL_STATE_DESCEND: {
_mission_item.lat = _navigator->get_home_position()->lat;
_mission_item.lon = _navigator->get_home_position()->lon;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = _navigator->get_home_position()->alt + _param_descend_alt.get();
// check if we are already lower - then we will just stay there
if (_mission_item.altitude > _navigator->get_global_position()->alt) {
_mission_item.altitude = _navigator->get_global_position()->alt;
}
_mission_item.yaw = _navigator->get_home_position()->yaw;
// except for vtol which might be still off here and should point towards this location
float d_current = get_distance_to_next_waypoint(
_navigator->get_global_position()->lat, _navigator->get_global_position()->lon,
_mission_item.lat, _mission_item.lon);
if (_navigator->get_vstatus()->is_vtol && d_current > _navigator->get_acceptance_radius()) {
_mission_item.yaw = get_bearing_to_next_waypoint(
_navigator->get_global_position()->lat, _navigator->get_global_position()->lon,
_mission_item.lat, _mission_item.lon);
}
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = 0.0f;
_mission_item.autocontinue = false;
_mission_item.origin = ORIGIN_ONBOARD;
/* disable previous setpoint to prevent drift */
pos_sp_triplet->previous.valid = false;
mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: descend to %d m (%d m above home)",
(int)(_mission_item.altitude),
(int)(_mission_item.altitude - _navigator->get_home_position()->alt));
break;
}
case RTL_STATE_LOITER: {
bool autoland = _param_land_delay.get() > -DELAY_SIGMA;
_mission_item.lat = _navigator->get_home_position()->lat;
_mission_item.lon = _navigator->get_home_position()->lon;
// don't change altitude
_mission_item.yaw = _navigator->get_home_position()->yaw;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.nav_cmd = autoland ? NAV_CMD_LOITER_TIME_LIMIT : NAV_CMD_LOITER_UNLIMITED;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = _param_land_delay.get() < 0.0f ? 0.0f : _param_land_delay.get();
_mission_item.autocontinue = autoland;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
if (autoland && (Navigator::get_time_inside(_mission_item) > FLT_EPSILON)) {
mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: loiter %.1fs",
(double)Navigator::get_time_inside(_mission_item));
} else {
mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: completed, loiter");
}
break;
}
case RTL_STATE_LAND: {
_mission_item.yaw = _navigator->get_home_position()->yaw;
set_land_item(&_mission_item, false);
mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: land at home");
break;
}
case RTL_STATE_LANDED: {
set_idle_item(&_mission_item);
mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: completed, landed");
break;
}
default:
break;
}
reset_mission_item_reached();
/* execute command if set */
if (!item_contains_position(&_mission_item)) {
issue_command(&_mission_item);
}
/* convert mission item to current position setpoint and make it valid */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
_navigator->set_position_setpoint_triplet_updated();
}
void RCRecover::update_mission_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
// make sure we have the latest params
updateParams();
if (!_start_lock)
set_previous_pos_setpoint();
_navigator->set_can_loiter_at_sp(false);
//if (_state == RCRECOVER_STATE_LOITER)
// todo: switch to RTL mode
switch (_state) {
case RCRECOVER_STATE_RETURN: {
if (_navigator->get_tracker().pop_recent_path(_mission_item.lat, _mission_item.lon, _mission_item.altitude)) {
loiter_lat = _mission_item.lat;
loiter_lon = _mission_item.lon;
loiter_alt = _mission_item.altitude;
_mission_item.altitude_is_relative = false;
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = 0.0f;
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
_start_lock = true;
break;
}
// Recent path is empty: fall through to loiter
_state = RCRECOVER_STATE_LOITER;
}
case RCRECOVER_STATE_LOITER: {
bool autortl = _param_rtl_delay.get() > -DELAY_SIGMA;
_mission_item.lat = loiter_lat;
_mission_item.lon = loiter_lon;
_mission_item.altitude = loiter_alt;
_mission_item.altitude_is_relative = false;
_mission_item.yaw = _navigator->get_global_position()->yaw;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = autortl ? NAV_CMD_LOITER_TIME_LIMIT : NAV_CMD_LOITER_UNLIMITED;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = _param_rtl_delay.get() < 0.0f ? 0.0f : _param_rtl_delay.get();
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = autortl;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
if (autortl) {
mavlink_log_critical(_navigator->get_mavlink_log_pub(), "RC Recover: loiter %.1fs", (double)_mission_item.time_inside);
} else {
mavlink_log_critical(_navigator->get_mavlink_log_pub(), "RC Recover: completed, loiter");
}
break;
}
default:
break;
}
reset_mission_item_reached();
/* convert mission item to current position setpoint and make it valid */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
_navigator->set_position_setpoint_triplet_updated();
}
void
Takeoff::set_takeoff_position()
{
struct position_setpoint_triplet_s *rep = _navigator->get_takeoff_triplet();
float abs_altitude = 0.0f;
float min_abs_altitude;
if (_navigator->home_position_valid()) { //only use home position if it is valid
min_abs_altitude = _navigator->get_global_position()->alt + _param_min_alt.get();
} else { //e.g. flow
min_abs_altitude = _param_min_alt.get();
}
// Use altitude if it has been set. If home position is invalid use min_abs_altitude
if (rep->current.valid && PX4_ISFINITE(rep->current.alt) && _navigator->home_position_valid()) {
abs_altitude = rep->current.alt;
// If the altitude suggestion is lower than home + minimum clearance, raise it and complain.
if (abs_altitude < min_abs_altitude) {
abs_altitude = min_abs_altitude;
mavlink_log_critical(_navigator->get_mavlink_log_pub(),
"Using minimum takeoff altitude: %.2f m", (double)_param_min_alt.get());
}
} else {
// Use home + minimum clearance but only notify.
abs_altitude = min_abs_altitude;
mavlink_log_info(_navigator->get_mavlink_log_pub(),
"Using minimum takeoff altitude: %.2f m", (double)_param_min_alt.get());
}
if (abs_altitude < _navigator->get_global_position()->alt) {
// If the suggestion is lower than our current alt, let's not go down.
abs_altitude = _navigator->get_global_position()->alt;
mavlink_log_critical(_navigator->get_mavlink_log_pub(),
"Already higher than takeoff altitude");
}
// set current mission item to takeoff
set_takeoff_item(&_mission_item, abs_altitude);
_navigator->get_mission_result()->reached = false;
_navigator->get_mission_result()->finished = false;
_navigator->set_mission_result_updated();
reset_mission_item_reached();
// convert mission item to current setpoint
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
mission_item_to_position_setpoint(_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->previous.valid = false;
pos_sp_triplet->current.yaw_valid = true;
pos_sp_triplet->next.valid = false;
if (rep->current.valid) {
// Go on and check which changes had been requested
if (PX4_ISFINITE(rep->current.yaw)) {
pos_sp_triplet->current.yaw = rep->current.yaw;
}
if (PX4_ISFINITE(rep->current.lat) && PX4_ISFINITE(rep->current.lon)) {
pos_sp_triplet->current.lat = rep->current.lat;
pos_sp_triplet->current.lon = rep->current.lon;
}
// mark this as done
memset(rep, 0, sizeof(*rep));
}
_navigator->set_can_loiter_at_sp(true);
_navigator->set_position_setpoint_triplet_updated();
}
