LCOV - code coverage report
Current view: top level - home/pbarker/rc/ardupilot/ArduCopter - mode_guided.cpp (source / functions) Hit Total Coverage
Test: lcov.info Lines: 390 525 74.3 %
Date: 2026-09-09 11:02:08 Functions: 46 55 83.6 %

          Line data    Source code
       1             : #include "Copter.h"
       2             : 
       3             : #if MODE_GUIDED_ENABLED
       4             : 
       5             : /*
       6             :  * Init and run calls for guided flight mode
       7             :  */
       8             : 
       9             : static Vector3p guided_pos_target_ned_m;        // position target (used by posvel controller only)
      10             : static bool guided_is_terrain_alt;              // true if guided_pos_target_ned_m.z should be offset by the terrain altitude
      11             : static Vector3f guided_vel_target_ned_ms;       // velocity target (used by pos_vel_accel controller and vel_accel controller)
      12             : static Vector3f guided_accel_target_ned_mss;    // acceleration target (used by pos_vel_accel controller vel_accel controller and accel controller)
      13             : static uint32_t update_time_ms;                 // system time of last target update to pos_vel_accel, vel_accel or accel controller
      14             : 
      15             : struct {
      16             :     uint32_t update_time_ms;
      17             :     Quaternion attitude_quat;
      18             :     Vector3f ang_vel_body;
      19             :     float climb_rate_ms;    // climb rate in ms.  Used if use_thrust is false
      20             :     float thrust_norm;      // thrust from -1 to 1.  Used if use_thrust is true
      21             :     bool use_thrust;
      22             : } static guided_angle_state;
      23             : 
      24             : struct Guided_Limit {
      25             :     uint32_t timeout_ms;        // timeout (in seconds) from the time that guided is invoked
      26             :     float alt_min_m;            // lower altitude limit in m above home (0 = no limit)
      27             :     float alt_max_m;            // upper altitude limit in m above home (0 = no limit)
      28             :     float horiz_max_m;          // horizontal position limit in m from where guided mode was initiated (0 = no limit)
      29             :     uint32_t start_time_ms;     // system time in milliseconds that control was handed to the external computer
      30             :     Vector3p start_pos_ned_m;   // start position as an offset from home in m. used for checking horiz_max limit
      31             : } static guided_limit;
      32             : 
      33             : bool ModeGuided::takeoff_complete;      // true once takeoff has completed (used to trigger retracting of landing gear)
      34             : 
      35             : // init - initialise guided controller
      36         163 : bool ModeGuided::init(bool ignore_checks)
      37             : {
      38             :     // start in velaccel control mode
      39         163 :     velaccel_control_start();
      40         163 :     guided_vel_target_ned_ms.zero();
      41         163 :     guided_accel_target_ned_mss.zero();
      42         163 :     send_notification = false;
      43             : 
      44             :     // clear pause state when entering guided mode
      45         163 :     _paused = false;
      46             : 
      47         163 :     return true;
      48             : }
      49             : 
      50             : // hold_position - bring vehicle to a stop and hold current position
      51             : // using velocity/acceleration control with zero velocity and acceleration targets
      52         105 : void ModeGuided::hold_position()
      53             : {
      54             :     // check we are in velocity and acceleration control mode
      55         105 :     if (guided_mode != SubMode::VelAccel) {
      56           1 :         velaccel_control_start();
      57             :     }
      58         105 :     guided_vel_target_ned_ms.zero();
      59         105 :     guided_accel_target_ned_mss.zero();
      60         105 : }
      61             : 
      62             : // run - runs the guided controller
      63             : // should be called at 100hz or more
      64     4966750 : void ModeGuided::run()
      65             : {
      66             :     // run pause control if the vehicle is paused
      67     4966750 :     if (_paused) {
      68        9676 :         pause_control_run();
      69        9676 :         return;
      70             :     }
      71             : 
      72             :     // call the correct auto controller
      73     4957074 :     switch (guided_mode) {
      74             : 
      75     2465464 :     case SubMode::TakeOff:
      76             :         // run takeoff controller
      77     2465464 :         takeoff_run();
      78     2465464 :         break;
      79             : 
      80           0 :     case SubMode::WP:
      81             :         // run waypoint controller
      82           0 :         wp_control_run();
      83           0 :         if (send_notification && wp_nav->reached_wp_destination()) {
      84           0 :             send_notification = false;
      85           0 :             gcs().send_mission_item_reached_message(0);
      86             :         }
      87           0 :         break;
      88             : 
      89      752774 :     case SubMode::Pos:
      90             :         // run position controller
      91      752774 :         pos_control_run();
      92      752774 :         break;
      93             : 
      94        2475 :     case SubMode::Accel:
      95        2475 :         accel_control_run();
      96        2475 :         break;
      97             : 
      98     1607509 :     case SubMode::VelAccel:
      99     1607509 :         velaccel_control_run();
     100     1607509 :         break;
     101             : 
     102       29526 :     case SubMode::PosVelAccel:
     103       29526 :         posvelaccel_control_run();
     104       29526 :         break;
     105             : 
     106       99326 :     case SubMode::Angle:
     107       99326 :         angle_control_run();
     108       99326 :         break;
     109             :     }
     110             :  }
     111             : 
     112             : // returns true if the Guided-mode-option is set (see GUID_OPTIONS)
     113     7547747 : bool ModeGuided::option_is_enabled(Option option) const
     114             : {
     115     7547747 :     return (copter.g2.guided_options.get() & (uint32_t)option) != 0;
     116             : }
     117             : 
     118         145 : bool ModeGuided::allows_arming(AP_Arming::Method method) const
     119             : {
     120             :     // always allow arming from the ground station or scripting
     121         145 :     if (AP_Arming::method_is_GCS(method) || method == AP_Arming::Method::SCRIPTING) {
     122         145 :         return true;
     123             :     }
     124             : 
     125             :     // optionally allow arming from the transmitter
     126           0 :     return option_is_enabled(Option::AllowArmingFromTX);
     127             : };
     128             : 
     129             : #if WEATHERVANE_ENABLED
     130     3336953 : bool ModeGuided::allows_weathervaning() const
     131             : {
     132     3336953 :     return option_is_enabled(Option::AllowWeatherVaning);
     133             : }
     134             : #endif
     135             : 
     136             : // determine EKF reset handling method based on Guide submode
     137     4984275 : bool ModeGuided::move_vehicle_on_ekf_reset() const
     138             : {
     139             :         // call the correct auto controller
     140     4984275 :     switch (guided_mode) {
     141     4192777 :     case SubMode::TakeOff:
     142             :     case SubMode::Accel:
     143             :     case SubMode::VelAccel:
     144             :     case SubMode::Angle:
     145             :         // these submodes have no absolute position target so we reset the position target
     146     4192777 :         return false;
     147      791498 :     case SubMode::WP:
     148             :     case SubMode::Pos:
     149             :     case SubMode::PosVelAccel:
     150             :         // these submodes have absolute position targets so we smoothly slew the target upon an ekf reset
     151      791498 :         return true;
     152             :     }
     153             : 
     154             :     // should never reach here but just in case
     155           0 :     return true;
     156             : }
     157             : 
     158             : // initialises position controller to implement take-off
     159             : // takeoff_alt_m is interpreted as alt-above-home (in m) or alt-above-terrain if a rangefinder is available
     160         146 : bool ModeGuided::do_user_takeoff_start_m(float takeoff_alt_m)
     161             : {
     162             :     // calculate target altitude and frame (either alt-above-ekf-origin or alt-above-terrain)
     163             :     float alt_target_m;
     164         146 :     bool alt_target_terrain = false;
     165             : #if AP_RANGEFINDER_ENABLED
     166         155 :     if (wp_nav->rangefinder_used_and_healthy() &&
     167         155 :         wp_nav->get_terrain_source() == AC_WPNav::TerrainSource::TERRAIN_FROM_RANGEFINDER &&
     168           9 :         takeoff_alt_m < copter.rangefinder.max_distance_orient(ROTATION_PITCH_270)) {
     169             :         // can't takeoff downwards
     170           6 :         if (takeoff_alt_m <= copter.rangefinder_state.alt_m) {
     171           0 :             return false;
     172             :         }
     173             :         // provide target altitude as alt-above-terrain
     174           6 :         alt_target_m = takeoff_alt_m;
     175           6 :         alt_target_terrain = true;
     176             :     } else
     177             : #endif
     178             :     {
     179             :         // interpret altitude as alt-above-home
     180         140 :         Location target_loc = copter.current_loc;
     181         140 :         target_loc.set_alt_m(takeoff_alt_m, Location::AltFrame::ABOVE_HOME);
     182             : 
     183             :         // provide target altitude as alt-above-ekf-origin
     184         140 :         if (!target_loc.get_alt_m(Location::AltFrame::ABOVE_ORIGIN, alt_target_m)) {
     185             :             // this should never happen but we reject the command just in case
     186           0 :             return false;
     187             :         }
     188             :     }
     189             : 
     190         146 :     guided_mode = SubMode::TakeOff;
     191             : 
     192             :     // initialise yaw
     193         146 :     auto_yaw.set_mode(AutoYaw::Mode::HOLD);
     194             : 
     195             :     // clear i term when we're taking off
     196         146 :     pos_control->D_init_controller();
     197             : 
     198             :     // initialise alt for WP_NAVALT_MIN and set completion alt
     199         146 :     auto_takeoff.start_m(alt_target_m, alt_target_terrain);
     200             : 
     201             :     // record takeoff has not completed
     202         146 :     takeoff_complete = false;
     203             : 
     204         146 :     return true;
     205             : }
     206             : 
     207             : // initialise guided mode's waypoint navigation controller
     208           0 : void ModeGuided::wp_control_start()
     209             : {
     210             :     // set to position control mode
     211           0 :     guided_mode = SubMode::WP;
     212             : 
     213             :     // initialise waypoint and spline controller
     214           0 :     wp_nav->wp_and_spline_init_m();
     215             : 
     216             :     // initialise wpnav to stopping point
     217           0 :     Vector3p stopping_point_ned_m;
     218           0 :     wp_nav->get_wp_stopping_point_NED_m(stopping_point_ned_m);
     219           0 :     if (!wp_nav->set_wp_destination_NED_m(stopping_point_ned_m, false)) {
     220             :         // this should never happen because terrain data is not used
     221           0 :         INTERNAL_ERROR(AP_InternalError::error_t::flow_of_control);
     222             :     }
     223             : 
     224             :     // initialise yaw
     225           0 :     auto_yaw.set_mode_to_default(false);
     226           0 : }
     227             : 
     228             : // run guided mode's waypoint navigation controller
     229           0 : void ModeGuided::wp_control_run()
     230             : {
     231             :     // if not armed set throttle to zero and exit immediately
     232           0 :     if (is_disarmed_or_landed()) {
     233             :         // do not spool down tradheli when on the ground with motor interlock enabled
     234           0 :         make_safe_ground_handling(copter.is_tradheli() && motors->get_interlock());
     235           0 :         return;
     236             :     }
     237             : 
     238             :     // set motors to full range
     239           0 :     motors->set_desired_spool_state(AP_Motors::DesiredSpoolState::THROTTLE_UNLIMITED);
     240             : 
     241             :     // run waypoint controller
     242           0 :     copter.failsafe_terrain_set_status(wp_nav->update_wpnav());
     243             : 
     244             :     // call z-axis position controller (wpnav should have already updated it's alt target)
     245           0 :     pos_control->D_update_controller();
     246             : 
     247             :     // call attitude controller with auto yaw
     248           0 :     attitude_control->input_thrust_vector_heading(pos_control->get_thrust_vector(), auto_yaw.get_heading());
     249             : }
     250             : 
     251             : // initialise position controller
     252         222 : void ModeGuided::pva_control_start()
     253             : {
     254             :     // initialise horizontal speed, acceleration
     255         222 :     pos_control->NE_set_max_speed_accel_m(wp_nav->get_default_speed_NE_ms(), wp_nav->get_wp_acceleration_mss());
     256         222 :     pos_control->NE_set_correction_speed_accel_m(wp_nav->get_default_speed_NE_ms(), wp_nav->get_wp_acceleration_mss());
     257             : 
     258             :     // initialize vertical speeds and acceleration
     259         222 :     pos_control->D_set_max_speed_accel_m(wp_nav->get_default_speed_down_ms(), wp_nav->get_default_speed_up_ms(), wp_nav->get_accel_D_mss());
     260         222 :     pos_control->D_set_correction_speed_accel_m(wp_nav->get_default_speed_down_ms(), wp_nav->get_default_speed_up_ms(), wp_nav->get_accel_D_mss());
     261             : 
     262             :     // initialise velocity controller
     263         222 :     pos_control->D_init_controller();
     264         222 :     pos_control->NE_init_controller();
     265             : 
     266             :     // initialise yaw
     267         222 :     auto_yaw.set_mode_to_default(false);
     268             : 
     269             :     // initialise terrain alt
     270         222 :     guided_is_terrain_alt = false;
     271         222 : }
     272             : 
     273             : // initialise guided mode's position controller
     274          50 : void ModeGuided::pos_control_start()
     275             : {
     276             :     // set to position control mode
     277          50 :     guided_mode = SubMode::Pos;
     278             : 
     279             :     // initialise position controller
     280          50 :     pva_control_start();
     281          50 : }
     282             : 
     283             : // initialise guided mode's acceleration controller
     284           1 : void ModeGuided::accel_control_start()
     285             : {
     286             :     // set guided_mode to acceleration controller
     287           1 :     guided_mode = SubMode::Accel;
     288             : 
     289             :     // initialise position controller
     290           1 :     pva_control_start();
     291           1 : }
     292             : 
     293             : // initialise guided mode's velocity and acceleration controller
     294         170 : void ModeGuided::velaccel_control_start()
     295             : {
     296             :     // set guided_mode to velocity and acceleration controller
     297         170 :     guided_mode = SubMode::VelAccel;
     298             : 
     299             :     // initialise position controller
     300         170 :     pva_control_start();
     301         170 : }
     302             : 
     303             : // initialise guided mode's position, velocity and acceleration controller
     304           1 : void ModeGuided::posvelaccel_control_start()
     305             : {
     306             :     // set guided_mode to position, velocity and acceleration controller
     307           1 :     guided_mode = SubMode::PosVelAccel;
     308             : 
     309             :     // initialise position controller
     310           1 :     pva_control_start();
     311           1 : }
     312             : 
     313      726624 : bool ModeGuided::is_taking_off() const
     314             : {
     315      726624 :     return guided_mode == SubMode::TakeOff && !takeoff_complete;
     316             : }
     317             : 
     318           6 : bool ModeGuided::set_speed_NE_ms(float speed_ne_ms)
     319             : {
     320             :     // initialise horizontal speed, acceleration
     321           6 :     pos_control->NE_set_max_speed_accel_m(speed_ne_ms, wp_nav->get_wp_acceleration_mss());
     322           6 :     pos_control->NE_set_correction_speed_accel_m(speed_ne_ms, wp_nav->get_wp_acceleration_mss());
     323           6 :     return true;
     324             : }
     325             : 
     326           0 : bool ModeGuided::set_speed_up_ms(float speed_up_ms)
     327             : {
     328             :     // initialize vertical speeds and acceleration
     329           0 :     pos_control->D_set_max_speed_accel_m(wp_nav->get_default_speed_down_ms(), speed_up_ms, wp_nav->get_accel_D_mss());
     330           0 :     pos_control->D_set_correction_speed_accel_m(wp_nav->get_default_speed_down_ms(), speed_up_ms, wp_nav->get_accel_D_mss());
     331           0 :     return true;
     332             : }
     333             : 
     334           0 : bool ModeGuided::set_speed_down_ms(float speed_down_ms)
     335             : {
     336             :     // initialize vertical speeds and acceleration
     337           0 :     pos_control->D_set_max_speed_accel_m(speed_down_ms, wp_nav->get_default_speed_up_ms(), wp_nav->get_accel_D_mss());
     338           0 :     pos_control->D_set_correction_speed_accel_m(speed_down_ms, wp_nav->get_default_speed_up_ms(), wp_nav->get_accel_D_mss());
     339           0 :     return true;
     340             : }
     341             : 
     342             : // initialise guided mode's angle controller
     343           9 : void ModeGuided::angle_control_start()
     344             : {
     345             :     // set guided_mode to velocity controller
     346           9 :     guided_mode = SubMode::Angle;
     347             : 
     348             :     // set vertical speed and acceleration limits
     349           9 :     pos_control->D_set_max_speed_accel_m(wp_nav->get_default_speed_down_ms(), wp_nav->get_default_speed_up_ms(), wp_nav->get_accel_D_mss());
     350           9 :     pos_control->D_set_correction_speed_accel_m(wp_nav->get_default_speed_down_ms(), wp_nav->get_default_speed_up_ms(), wp_nav->get_accel_D_mss());
     351             : 
     352             :     // initialise the vertical position controller
     353           9 :     if (!pos_control->D_is_active()) {
     354           0 :         pos_control->D_init_controller();
     355             :     }
     356             : 
     357             :     // initialise targets
     358           9 :     guided_angle_state.update_time_ms = millis();
     359           9 :     guided_angle_state.attitude_quat.from_euler(Vector3f{0.0, 0.0, attitude_control->get_att_target_euler_rad().z});
     360           9 :     guided_angle_state.ang_vel_body.zero();
     361           9 :     guided_angle_state.climb_rate_ms = 0.0f;
     362           9 : }
     363             : 
     364             : // set_pos_ned_m - sets guided mode's target pos_ned_m
     365             : // Returns true if the fence is enabled and guided waypoint is within the fence
     366             : // else return false if the waypoint is outside the fence
     367          53 : bool ModeGuided::set_pos_NED_m(const Vector3p& pos_ned_m, bool use_yaw, float yaw_rad, bool use_yaw_rate, float yaw_rate_rads, bool relative_yaw, bool is_terrain_alt)
     368             : {
     369             : #if AP_FENCE_ENABLED
     370             :     // reject destination if outside the fence
     371          53 :     const Location dest_loc = Location::from_ekf_offset_NED_m(pos_ned_m, is_terrain_alt ? Location::AltFrame::ABOVE_TERRAIN : Location::AltFrame::ABOVE_ORIGIN);
     372          53 :     if (!copter.fence.check_location_within_fence(dest_loc)) {
     373           0 :         LOGGER_WRITE_ERROR(LogErrorSubsystem::NAVIGATION, LogErrorCode::DEST_OUTSIDE_FENCE);
     374             :         // failure is propagated to GCS with NAK
     375           0 :         return false;
     376             :     }
     377             : #endif
     378             : 
     379             :     // if configured to use wpnav for position control
     380          53 :     if (use_wpnav_for_position_control()) {
     381             :         // ensure we are in position control mode
     382           0 :         if (guided_mode != SubMode::WP) {
     383           0 :             wp_control_start();
     384             :         }
     385             : 
     386             :         // set yaw state
     387           0 :         set_yaw_state_rad(use_yaw, yaw_rad, use_yaw_rate, yaw_rate_rads, relative_yaw);
     388             : 
     389             :         // no need to check return status because terrain data is not used
     390           0 :         wp_nav->set_wp_destination_NED_m(pos_ned_m, is_terrain_alt);
     391             : 
     392             : #if HAL_LOGGING_ENABLED
     393             :         // log target
     394           0 :         copter.Log_Write_Guided_Position_Target(guided_mode, pos_ned_m, is_terrain_alt, Vector3f(), Vector3f());
     395             : #endif
     396           0 :         send_notification = true;
     397           0 :         return true;
     398             :     }
     399             : 
     400             :     // if configured to use position controller for position control
     401             :     // ensure we are in position control mode
     402          53 :     if (guided_mode != SubMode::Pos) {
     403          27 :         pos_control_start();
     404             :     }
     405             : 
     406             :     // initialise terrain following if needed
     407          53 :     if (is_terrain_alt) {
     408             :         // get current alt above terrain
     409             :         float terrain_d_m;
     410           0 :         if (!wp_nav->get_terrain_D_m(terrain_d_m)) {
     411             :             // if we don't have terrain altitude then stop
     412           0 :             hold_position();
     413           0 :             return false;
     414             :         }
     415             :         // convert origin to alt-above-terrain if necessary
     416           0 :         if (!guided_is_terrain_alt) {
     417             :             // new destination is alt-above-terrain, previous destination was alt-above-ekf-origin
     418           0 :             pos_control->init_pos_terrain_D_m(terrain_d_m);
     419             :         }
     420             :     } else {
     421          53 :         pos_control->init_pos_terrain_D_m(0.0);
     422             :     }
     423             : 
     424             :     // set yaw state
     425          53 :     set_yaw_state_rad(use_yaw, yaw_rad, use_yaw_rate, yaw_rate_rads, relative_yaw);
     426             : 
     427             :     // set position target and zero velocity and acceleration
     428          53 :     guided_pos_target_ned_m = pos_ned_m;
     429          53 :     guided_is_terrain_alt = is_terrain_alt;
     430          53 :     guided_vel_target_ned_ms.zero();
     431          53 :     guided_accel_target_ned_mss.zero();
     432          53 :     update_time_ms = millis();
     433             : 
     434             : #if HAL_LOGGING_ENABLED
     435             :     // log target
     436          53 :     copter.Log_Write_Guided_Position_Target(guided_mode, guided_pos_target_ned_m, guided_is_terrain_alt, guided_vel_target_ned_ms, guided_accel_target_ned_mss);
     437             : #endif
     438             : 
     439          53 :     send_notification = true;
     440             : 
     441          53 :     return true;
     442             : }
     443             : 
     444       62098 : bool ModeGuided::get_wp(Location& destination) const
     445             : {
     446       62098 :     switch (guided_mode) {
     447           0 :     case SubMode::WP:
     448           0 :         return wp_nav->get_oa_wp_destination(destination);
     449        9500 :     case SubMode::Pos:
     450        9500 :         destination = Location::from_ekf_offset_NED_m(guided_pos_target_ned_m, guided_is_terrain_alt ? Location::AltFrame::ABOVE_TERRAIN : Location::AltFrame::ABOVE_ORIGIN);
     451        9500 :         return true;
     452       52598 :     case SubMode::Angle:
     453             :     case SubMode::TakeOff:
     454             :     case SubMode::Accel:
     455             :     case SubMode::VelAccel:
     456             :     case SubMode::PosVelAccel:
     457       52598 :         break;
     458             :     }
     459             : 
     460       52598 :     return false;
     461             : }
     462             : 
     463             : // sets guided mode's target from a Location object
     464             : // returns false if destination could not be set (probably caused by missing terrain data)
     465             : // or if the fence is enabled and guided waypoint is outside the fence
     466         422 : bool ModeGuided::set_destination(const Location& dest_loc, bool use_yaw, float yaw_rad, bool use_yaw_rate, float yaw_rate_rads, bool relative_yaw)
     467             : {
     468             : #if AP_FENCE_ENABLED
     469             :     // reject destination outside the fence.
     470             :     // Note: there is a danger that a target specified as a terrain altitude might not be checked if the conversion to alt-above-home fails
     471         422 :     if (!copter.fence.check_location_within_fence(dest_loc)) {
     472           1 :         LOGGER_WRITE_ERROR(LogErrorSubsystem::NAVIGATION, LogErrorCode::DEST_OUTSIDE_FENCE);
     473             :         // failure is propagated to GCS with NAK
     474           1 :         return false;
     475             :     }
     476             : #endif
     477             : 
     478             :     // if using wpnav for position control
     479         421 :     if (use_wpnav_for_position_control()) {
     480           0 :         if (guided_mode != SubMode::WP) {
     481           0 :             wp_control_start();
     482             :         }
     483             : 
     484           0 :         if (!wp_nav->set_wp_destination_loc(dest_loc)) {
     485             :             // failure to set destination can only be because of missing terrain data
     486           0 :             LOGGER_WRITE_ERROR(LogErrorSubsystem::NAVIGATION, LogErrorCode::FAILED_TO_SET_DESTINATION);
     487             :             // failure is propagated to GCS with NAK
     488           0 :             return false;
     489             :         }
     490             : 
     491             :         // set yaw state
     492           0 :         set_yaw_state_rad(use_yaw, yaw_rad, use_yaw_rate, yaw_rate_rads, relative_yaw);
     493             : 
     494             : #if HAL_LOGGING_ENABLED
     495             :         // log target
     496           0 :         copter.Log_Write_Guided_Position_Target(guided_mode, Vector3p(dest_loc.lat, dest_loc.lng, dest_loc.alt), (dest_loc.get_alt_frame() == Location::AltFrame::ABOVE_TERRAIN), Vector3f(), Vector3f());
     497             : #endif
     498             : 
     499           0 :         send_notification = true;
     500           0 :         return true;
     501             :     }
     502             : 
     503             :     // set position target and zero velocity and acceleration
     504         421 :     Vector3p pos_target_ned_m;
     505             :     bool is_terrain_alt;
     506         421 :     if (!wp_nav->get_vector_NED_m(dest_loc, pos_target_ned_m, is_terrain_alt)) {
     507           8 :         return false;
     508             :     }
     509             : 
     510             :     // if configured to use position controller for position control
     511             :     // ensure we are in position control mode
     512         413 :     if (guided_mode != SubMode::Pos) {
     513          23 :         pos_control_start();
     514             :     }
     515             : 
     516             :     // set yaw state
     517         413 :     set_yaw_state_rad(use_yaw, yaw_rad, use_yaw_rate, yaw_rate_rads, relative_yaw);
     518             : 
     519             :     // initialise terrain following if needed
     520         413 :     if (is_terrain_alt) {
     521             :         // get current alt above terrain
     522             :         float terrain_d_m;
     523          92 :         if (!wp_nav->get_terrain_D_m(terrain_d_m)) {
     524             :             // if we don't have terrain altitude then stop
     525           0 :             hold_position();
     526           0 :             return false;
     527             :         }
     528             :         // convert origin to alt-above-terrain if necessary
     529          92 :         if (!guided_is_terrain_alt) {
     530             :             // new destination is alt-above-terrain, previous destination was alt-above-ekf-origin
     531           1 :             pos_control->init_pos_terrain_D_m(terrain_d_m);
     532             :         }
     533             :     } else {
     534         321 :         pos_control->init_pos_terrain_D_m(0.0);
     535             :     }
     536             : 
     537         413 :     guided_pos_target_ned_m = pos_target_ned_m;
     538         413 :     guided_is_terrain_alt = is_terrain_alt;
     539         413 :     guided_vel_target_ned_ms.zero();
     540         413 :     guided_accel_target_ned_mss.zero();
     541         413 :     update_time_ms = millis();
     542             : 
     543             :     // log target
     544             : #if HAL_LOGGING_ENABLED
     545         413 :     copter.Log_Write_Guided_Position_Target(guided_mode, Vector3p(dest_loc.lat, dest_loc.lng, dest_loc.alt), guided_is_terrain_alt, guided_vel_target_ned_ms, guided_accel_target_ned_mss);
     546             : #endif
     547             : 
     548         413 :     send_notification = true;
     549             : 
     550         413 :     return true;
     551             : }
     552             : 
     553             : // set_vel_accel_NED_m - sets guided mode's target velocity and acceleration
     554           1 : void ModeGuided::set_accel_NED_mss(const Vector3f& accel_ned_mss, bool use_yaw, float yaw_rad, bool use_yaw_rate, float yaw_rate_rads, bool relative_yaw, bool log_request)
     555             : {
     556             :     // check we are in acceleration control mode
     557           1 :     if (guided_mode != SubMode::Accel) {
     558           1 :         accel_control_start();
     559             :     }
     560             : 
     561             :     // set yaw state
     562           1 :     set_yaw_state_rad(use_yaw, yaw_rad, use_yaw_rate, yaw_rate_rads, relative_yaw);
     563             : 
     564             :     // set velocity and acceleration targets and zero position
     565           1 :     guided_pos_target_ned_m.zero();
     566           1 :     guided_is_terrain_alt = false;
     567           1 :     guided_vel_target_ned_ms.zero();
     568           1 :     guided_accel_target_ned_mss = accel_ned_mss;
     569           1 :     update_time_ms = millis();
     570             : 
     571             : #if HAL_LOGGING_ENABLED
     572             :     // log target
     573           1 :     if (log_request) {
     574           1 :         copter.Log_Write_Guided_Position_Target(guided_mode, guided_pos_target_ned_m, guided_is_terrain_alt, guided_vel_target_ned_ms, guided_accel_target_ned_mss);
     575             :     }
     576             : #endif
     577           1 : }
     578             : 
     579             : // set_vel_NED_ms - sets guided mode's target velocity
     580           0 : void ModeGuided::set_vel_NED_ms(const Vector3f& vel_ned_ms, bool use_yaw, float yaw_rad, bool use_yaw_rate, float yaw_rate_rads, bool relative_yaw, bool log_request)
     581             : {
     582           0 :     set_vel_accel_NED_m(vel_ned_ms, Vector3f(), use_yaw, yaw_rad, use_yaw_rate, yaw_rate_rads, relative_yaw, log_request);
     583           0 : }
     584             : 
     585             : // set_vel_accel_NED_m - sets guided mode's target velocity and acceleration
     586        2860 : void ModeGuided::set_vel_accel_NED_m(const Vector3f& vel_ned_ms, const Vector3f& accel_ned_mss, bool use_yaw, float yaw_rad, bool use_yaw_rate, float yaw_rate_rads, bool relative_yaw, bool log_request)
     587             : {
     588             :     // check we are in velocity and acceleration control mode
     589        2860 :     if (guided_mode != SubMode::VelAccel) {
     590           6 :         velaccel_control_start();
     591             :     }
     592             : 
     593             :     // set yaw state
     594        2860 :     set_yaw_state_rad(use_yaw, yaw_rad, use_yaw_rate, yaw_rate_rads, relative_yaw);
     595             : 
     596             :     // set velocity and acceleration targets and zero position
     597        2860 :     guided_pos_target_ned_m.zero();
     598        2860 :     guided_is_terrain_alt = false;
     599        2860 :     guided_vel_target_ned_ms = vel_ned_ms;
     600        2860 :     guided_accel_target_ned_mss = accel_ned_mss;
     601        2860 :     update_time_ms = millis();
     602             : 
     603             : #if HAL_LOGGING_ENABLED
     604             :     // log target
     605        2860 :     if (log_request) {
     606        2860 :         copter.Log_Write_Guided_Position_Target(guided_mode, guided_pos_target_ned_m, guided_is_terrain_alt, guided_vel_target_ned_ms, guided_accel_target_ned_mss);
     607             :     }
     608             : #endif
     609        2860 : }
     610             : 
     611             : // set guided mode position and velocity target
     612           0 : bool ModeGuided::set_pos_vel_NED_m(const Vector3p& pos_ned_m, const Vector3f& vel_ned_ms, bool use_yaw, float yaw_rad, bool use_yaw_rate, float yaw_rate_rads, bool relative_yaw)
     613             : {
     614           0 :     return set_pos_vel_accel_NED_m(pos_ned_m, vel_ned_ms, Vector3f(), use_yaw, yaw_rad, use_yaw_rate, yaw_rate_rads, relative_yaw);
     615             : }
     616             : 
     617             : // set_pos_vel_accel_NED_m - set guided mode position, velocity and acceleration target
     618           1 : bool ModeGuided::set_pos_vel_accel_NED_m(const Vector3p& pos_ned_m, const Vector3f& vel_ned_ms, const Vector3f& accel_ned_mss, bool use_yaw, float yaw_rad, bool use_yaw_rate, float yaw_rate_rads, bool relative_yaw)
     619             : {
     620             : #if AP_FENCE_ENABLED
     621             :     // reject destination if outside the fence
     622           1 :     const Location dest_loc = Location::from_ekf_offset_NED_m(pos_ned_m, Location::AltFrame::ABOVE_ORIGIN);
     623           1 :     if (!copter.fence.check_location_within_fence(dest_loc)) {
     624           0 :         LOGGER_WRITE_ERROR(LogErrorSubsystem::NAVIGATION, LogErrorCode::DEST_OUTSIDE_FENCE);
     625             :         // failure is propagated to GCS with NAK
     626           0 :         return false;
     627             :     }
     628             : #endif
     629             : 
     630             :     // check we are in position, velocity and acceleration control mode
     631           1 :     if (guided_mode != SubMode::PosVelAccel) {
     632           1 :         posvelaccel_control_start();
     633             :     }
     634             : 
     635             :     // set yaw state
     636           1 :     set_yaw_state_rad(use_yaw, yaw_rad, use_yaw_rate, yaw_rate_rads, relative_yaw);
     637             : 
     638           1 :     update_time_ms = millis();
     639           1 :     guided_pos_target_ned_m = pos_ned_m;
     640           1 :     guided_is_terrain_alt = false;
     641           1 :     guided_vel_target_ned_ms = vel_ned_ms;
     642           1 :     guided_accel_target_ned_mss = accel_ned_mss;
     643             : 
     644             : #if HAL_LOGGING_ENABLED
     645             :     // log target
     646           1 :     copter.Log_Write_Guided_Position_Target(guided_mode, guided_pos_target_ned_m, guided_is_terrain_alt, guided_vel_target_ned_ms, guided_accel_target_ned_mss);
     647             : #endif
     648           1 :     return true;
     649             : }
     650             : 
     651             : // returns true if GUIDED_OPTIONS param suggests SET_ATTITUDE_TARGET's "thrust" field should be interpreted as thrust instead of climb rate
     652          61 : bool ModeGuided::set_attitude_target_provides_thrust() const
     653             : {
     654          61 :     return option_is_enabled(Option::SetAttitudeTarget_ThrustAsThrust);
     655             : }
     656             : 
     657             : // returns true if GUIDED_OPTIONS param specifies position should be controlled (when velocity and/or acceleration control is active)
     658      314451 : bool ModeGuided::stabilizing_pos_NE() const
     659             : {
     660      314451 :     return !option_is_enabled(Option::DoNotStabilizePositionXY);
     661             : }
     662             : 
     663             : // returns true if GUIDED_OPTIONS param specifies velocity should  be controlled (when acceleration control is active)
     664      567375 : bool ModeGuided::stabilizing_vel_NE() const
     665             : {
     666      567375 :     return !option_is_enabled(Option::DoNotStabilizeVelocityXY);
     667             : }
     668             : 
     669             : // returns true if GUIDED_OPTIONS param specifies waypoint navigation should be used for position control (allow path planning to be used but updates must be slower)
     670         474 : bool ModeGuided::use_wpnav_for_position_control() const
     671             : {
     672         474 :     return option_is_enabled(Option::WPNavUsedForPosControl);
     673             : }
     674             : 
     675             : // Sets guided's angular target submode: Using a rotation quaternion, angular velocity, and climbrate or thrust (depends on user option)
     676             : // attitude_quat: IF zero: ang_vel_body (body frame angular velocity) must be provided even if all zeroes
     677             : //                IF non-zero: attitude_control is performed using both the attitude quaternion and body frame angular velocity
     678             : // ang_vel_body: body frame angular velocity (rad/s)
     679             : // climb_rate_ms_or_thrust: represents either the climb_rate (m/s) or thrust scaled from [0, 1], unitless
     680             : // use_thrust: IF true: climb_rate_ms_or_thrust represents thrust
     681             : //             IF false: climb_rate_ms_or_thrust represents climb_rate (m/s)
     682         306 : void ModeGuided::set_angle(const Quaternion &attitude_quat, const Vector3f &ang_vel_body, float climb_rate_ms_or_thrust, bool use_thrust)
     683             : {
     684             :     // check we are in velocity control mode
     685         306 :     if (guided_mode != SubMode::Angle) {
     686           7 :         angle_control_start();
     687         299 :     } else if (!use_thrust && guided_angle_state.use_thrust) {
     688             :         // Already angle control but changing from thrust to climb rate
     689           0 :         pos_control->D_init_controller();
     690             :     }
     691             : 
     692         306 :     guided_angle_state.attitude_quat = attitude_quat;
     693         306 :     guided_angle_state.ang_vel_body = ang_vel_body;
     694             : 
     695         306 :     guided_angle_state.use_thrust = use_thrust;
     696         306 :     if (use_thrust) {
     697         246 :         guided_angle_state.thrust_norm = climb_rate_ms_or_thrust;
     698         246 :         guided_angle_state.climb_rate_ms = 0.0f;
     699             :     } else {
     700          60 :         guided_angle_state.thrust_norm = 0.0f;
     701          60 :         guided_angle_state.climb_rate_ms = climb_rate_ms_or_thrust;
     702             :     }
     703             : 
     704         306 :     guided_angle_state.update_time_ms = millis();
     705             : 
     706             :     // convert quaternion to euler angles
     707             :     float roll_rad, pitch_rad, yaw_rad;
     708         306 :     attitude_quat.to_euler(roll_rad, pitch_rad, yaw_rad);
     709             : 
     710             : #if HAL_LOGGING_ENABLED
     711             :     // log target
     712         306 :     copter.Log_Write_Guided_Attitude_Target(guided_mode, roll_rad, pitch_rad, yaw_rad, ang_vel_body, guided_angle_state.thrust_norm, guided_angle_state.climb_rate_ms);
     713             : #endif
     714         306 : }
     715             : 
     716             : // takeoff_run - takeoff in guided mode
     717             : //      called by guided_run at 100hz or more
     718     2465464 : void ModeGuided::takeoff_run()
     719             : {
     720     2465464 :     auto_takeoff.run();
     721     2465464 :     if (auto_takeoff.complete && !takeoff_complete) {
     722          67 :         takeoff_complete = true;
     723             : #if AP_FENCE_ENABLED
     724          67 :         copter.fence.auto_enable_fence_after_takeoff();
     725             : #endif
     726             : #if AP_LANDINGGEAR_ENABLED
     727             :         // optionally retract landing gear
     728          67 :         copter.landinggear.retract_after_takeoff();
     729             : #endif
     730             :     }
     731     2465464 : }
     732             : 
     733             : // pos_control_run - runs the guided position controller
     734             : // called from guided_run
     735      752774 : void ModeGuided::pos_control_run()
     736             : {
     737             :     // if not armed set throttle to zero and exit immediately
     738      752774 :     if (is_disarmed_or_landed()) {
     739             :         // do not spool down tradheli when on the ground with motor interlock enabled
     740       13209 :         make_safe_ground_handling(copter.is_tradheli() && motors->get_interlock());
     741       13209 :         return;
     742             :     }
     743             : 
     744             :     // calculate terrain adjustments
     745      739565 :     float terrain_d_m = 0.0f;
     746      739565 :     if (guided_is_terrain_alt && !wp_nav->get_terrain_D_m(terrain_d_m)) {
     747             :         // failure to set destination can only be because of missing terrain data
     748           0 :         copter.failsafe_terrain_on_event();
     749           0 :         return;
     750             :     }
     751             : 
     752             :     // set motors to full range
     753      739565 :     motors->set_desired_spool_state(AP_Motors::DesiredSpoolState::THROTTLE_UNLIMITED);
     754             : 
     755             :     // send position and velocity targets to position controller
     756      739565 :     guided_accel_target_ned_mss.zero();
     757      739565 :     guided_vel_target_ned_ms.zero();
     758             : 
     759             :     // stop rotating if no updates received within timeout_ms
     760      739565 :     if (millis() - update_time_ms > get_timeout_ms()) {
     761      528250 :         if ((auto_yaw.mode() == AutoYaw::Mode::RATE) || (auto_yaw.mode() == AutoYaw::Mode::ANGLE_RATE)) {
     762          12 :             auto_yaw.set_mode(AutoYaw::Mode::HOLD);
     763             :         }
     764             :     }
     765             : 
     766      739565 :     float terrain_margin_m = 0.0; // Vertical buffer size in m
     767      739565 :     if (guided_is_terrain_alt) {
     768       56715 :         terrain_margin_m = MIN(copter.wp_nav->get_terrain_margin_m(), 0.5 * fabsF(guided_pos_target_ned_m.z));
     769             :     }
     770      739565 :     pos_control->input_pos_NED_m(guided_pos_target_ned_m, terrain_d_m, terrain_margin_m);
     771             : 
     772             :     // run position controllers
     773      739565 :     pos_control->NE_update_controller();
     774      739565 :     pos_control->D_update_controller();
     775             : 
     776             :     // call attitude controller with auto yaw
     777      739565 :     attitude_control->input_thrust_vector_heading(pos_control->get_thrust_vector(), auto_yaw.get_heading());
     778             : }
     779             : 
     780             : // velaccel_control_run - runs the guided velocity controller
     781             : // called from guided_run
     782        2475 : void ModeGuided::accel_control_run()
     783             : {
     784             :     // if not armed set throttle to zero and exit immediately
     785        2475 :     if (is_disarmed_or_landed()) {
     786             :         // do not spool down tradheli when on the ground with motor interlock enabled
     787           0 :         make_safe_ground_handling(copter.is_tradheli() && motors->get_interlock());
     788           0 :         return;
     789             :     }
     790             : 
     791             :     // set motors to full range
     792        2475 :     motors->set_desired_spool_state(AP_Motors::DesiredSpoolState::THROTTLE_UNLIMITED);
     793             : 
     794             :     // set velocity to zero and stop rotating if no updates received for 3 seconds
     795        2475 :     uint32_t tnow = millis();
     796        2475 :     if (tnow - update_time_ms > get_timeout_ms()) {
     797           0 :         guided_vel_target_ned_ms.zero();
     798           0 :         guided_accel_target_ned_mss.zero();
     799           0 :         if ((auto_yaw.mode() == AutoYaw::Mode::RATE) || (auto_yaw.mode() == AutoYaw::Mode::ANGLE_RATE)) {
     800           0 :             auto_yaw.set_mode(AutoYaw::Mode::HOLD);
     801             :         }
     802           0 :         pos_control->input_vel_accel_NE_m(guided_vel_target_ned_ms.xy(), guided_accel_target_ned_mss.xy(), false);
     803           0 :         pos_control->input_vel_accel_D_m(guided_vel_target_ned_ms.z, guided_accel_target_ned_mss.z, false);
     804             :     } else {
     805             :         // update position controller with new target
     806        2475 :         pos_control->input_accel_NE_m(guided_accel_target_ned_mss.xy());
     807        2475 :         if (!stabilizing_vel_NE()) {
     808             :             // set position and velocity errors to zero
     809           0 :             pos_control->NE_stop_vel_stabilisation();
     810        2475 :         } else if (!stabilizing_pos_NE()) {
     811             :             // set position errors to zero
     812           0 :             pos_control->NE_stop_pos_stabilisation();
     813             :         }
     814        2475 :         pos_control->input_accel_D_m(guided_accel_target_ned_mss.z);
     815             :     }
     816             : 
     817             :     // call velocity controller which includes z axis controller
     818        2475 :     pos_control->NE_update_controller();
     819        2475 :     pos_control->D_update_controller();
     820             : 
     821             :     // call attitude controller with auto yaw
     822        2475 :     attitude_control->input_thrust_vector_heading(pos_control->get_thrust_vector(), auto_yaw.get_heading());
     823             : }
     824             : 
     825             : // velaccel_control_run - runs the guided velocity and acceleration controller
     826             : // called from guided_run
     827     1607509 : void ModeGuided::velaccel_control_run()
     828             : {
     829             :     // if not armed set throttle to zero and exit immediately
     830     1607509 :     if (is_disarmed_or_landed()) {
     831             :         // do not spool down tradheli when on the ground with motor interlock enabled
     832     1354585 :         make_safe_ground_handling(copter.is_tradheli() && motors->get_interlock());
     833     1354585 :         return;
     834             :     }
     835             : 
     836             :     // set motors to full range
     837      252924 :     motors->set_desired_spool_state(AP_Motors::DesiredSpoolState::THROTTLE_UNLIMITED);
     838             : 
     839             :     // set velocity to zero and stop rotating if no updates received for 3 seconds
     840      252924 :     uint32_t tnow = millis();
     841      252924 :     if (tnow - update_time_ms > get_timeout_ms()) {
     842       17707 :         guided_vel_target_ned_ms.zero();
     843       17707 :         guided_accel_target_ned_mss.zero();
     844       17707 :         if ((auto_yaw.mode() == AutoYaw::Mode::RATE) || (auto_yaw.mode() == AutoYaw::Mode::ANGLE_RATE)) {
     845           0 :             auto_yaw.set_mode(AutoYaw::Mode::HOLD);
     846             :         }
     847             :     }
     848             : 
     849      252924 :     bool do_avoid = false;
     850             : #if AP_AVOIDANCE_ENABLED
     851             :     // limit the velocity for obstacle/fence avoidance
     852      252924 :     copter.avoid.adjust_velocity_NED_m(guided_vel_target_ned_ms, pos_control->NE_get_pos_p().kP(), pos_control->NE_get_max_accel_mss(), pos_control->D_get_pos_p().kP(), pos_control->D_get_max_accel_mss(), G_Dt);
     853      252924 :     do_avoid = copter.avoid.limits_active();
     854             : #endif
     855             : 
     856             :     // update position controller with new target
     857             : 
     858      252924 :     if (!stabilizing_vel_NE() && !do_avoid) {
     859             :         // set the current commanded xy vel to the desired vel
     860           0 :         guided_vel_target_ned_ms.xy() = pos_control->get_vel_desired_NED_ms().xy();
     861             :     }
     862      252924 :     pos_control->input_vel_accel_NE_m(guided_vel_target_ned_ms.xy(), guided_accel_target_ned_mss.xy(), false);
     863      252924 :     if (!stabilizing_vel_NE() && !do_avoid) {
     864             :         // set position and velocity errors to zero
     865           0 :         pos_control->NE_stop_vel_stabilisation();
     866      252924 :     } else if (!stabilizing_pos_NE() && !do_avoid) {
     867             :         // set position errors to zero
     868           0 :         pos_control->NE_stop_pos_stabilisation();
     869             :     }
     870      252924 :     pos_control->input_vel_accel_D_m(guided_vel_target_ned_ms.z, guided_accel_target_ned_mss.z, false);
     871             : 
     872             :     // call velocity controller which includes z axis controller
     873      252924 :     pos_control->NE_update_controller();
     874      252924 :     pos_control->D_update_controller();
     875             : 
     876             :     // call attitude controller with auto yaw
     877      252924 :     attitude_control->input_thrust_vector_heading(pos_control->get_thrust_vector(), auto_yaw.get_heading());
     878             : }
     879             : 
     880             : // pause_control_run - runs the guided mode pause controller
     881             : // called from guided_run
     882        9676 : void ModeGuided::pause_control_run()
     883             : {
     884             :     // if not armed set throttle to zero and exit immediately
     885        9676 :     if (is_disarmed_or_landed()) {
     886             :         // do not spool down tradheli when on the ground with motor interlock enabled
     887           0 :         make_safe_ground_handling(copter.is_tradheli() && motors->get_interlock());
     888           0 :         return;
     889             :     }
     890             : 
     891             :     // set motors to full range
     892        9676 :     motors->set_desired_spool_state(AP_Motors::DesiredSpoolState::THROTTLE_UNLIMITED);
     893             : 
     894             :     // set the horizontal velocity and acceleration targets to zero
     895        9676 :     Vector2f vel_xy_zero, accel_xy_zero;
     896        9676 :     pos_control->input_vel_accel_NE_m(vel_xy_zero, accel_xy_zero, false);
     897             : 
     898             :     // set the vertical velocity and acceleration targets to zero
     899        9676 :     float vel_d_zero = 0.0;
     900        9676 :     pos_control->input_vel_accel_D_m(vel_d_zero, 0.0, false);
     901             : 
     902             :     // call velocity controller which includes z axis controller
     903        9676 :     pos_control->NE_update_controller();
     904        9676 :     pos_control->D_update_controller();
     905             : 
     906             :     // call attitude controller
     907        9676 :     attitude_control->input_thrust_vector_rate_heading_rads(pos_control->get_thrust_vector(), 0.0);
     908             : }
     909             : 
     910             : // posvelaccel_control_run - runs the guided position, velocity and acceleration controller
     911             : // called from guided_run
     912       29526 : void ModeGuided::posvelaccel_control_run()
     913             : {
     914             :     // if not armed set throttle to zero and exit immediately
     915       29526 :     if (is_disarmed_or_landed()) {
     916             :         // do not spool down tradheli when on the ground with motor interlock enabled
     917           0 :         make_safe_ground_handling(copter.is_tradheli() && motors->get_interlock());
     918           0 :         return;
     919             :     }
     920             : 
     921             :     // set motors to full range
     922       29526 :     motors->set_desired_spool_state(AP_Motors::DesiredSpoolState::THROTTLE_UNLIMITED);
     923             : 
     924             :     // set velocity to zero and stop rotating if no updates received for 3 seconds
     925       29526 :     uint32_t tnow = millis();
     926       29526 :     if (tnow - update_time_ms > get_timeout_ms()) {
     927           0 :         guided_vel_target_ned_ms.zero();
     928           0 :         guided_accel_target_ned_mss.zero();
     929           0 :         if ((auto_yaw.mode() == AutoYaw::Mode::RATE) || (auto_yaw.mode() == AutoYaw::Mode::ANGLE_RATE)) {
     930           0 :             auto_yaw.set_mode(AutoYaw::Mode::HOLD);
     931             :         }
     932             :     }
     933             : 
     934             :     // send position and velocity targets to position controller
     935       29526 :     if (!stabilizing_vel_NE()) {
     936             :         // set the current commanded xy pos to the target pos and xy vel to the desired vel
     937           0 :         guided_pos_target_ned_m.xy() = pos_control->get_pos_desired_NED_m().xy();
     938           0 :         guided_vel_target_ned_ms.xy() = pos_control->get_vel_desired_NED_ms().xy();
     939       29526 :     } else if (!stabilizing_pos_NE()) {
     940             :         // set the current commanded xy pos to the target pos
     941           0 :         guided_pos_target_ned_m.xy() = pos_control->get_pos_desired_NED_m().xy();
     942             :     }
     943       29526 :     pos_control->input_pos_vel_accel_NE_m(guided_pos_target_ned_m.xy(), guided_vel_target_ned_ms.xy(), guided_accel_target_ned_mss.xy(), false);
     944       29526 :     if (!stabilizing_vel_NE()) {
     945             :         // set position and velocity errors to zero
     946           0 :         pos_control->NE_stop_vel_stabilisation();
     947       29526 :     } else if (!stabilizing_pos_NE()) {
     948             :         // set position errors to zero
     949           0 :         pos_control->NE_stop_pos_stabilisation();
     950             :     }
     951             : 
     952             :     // guided_pos_target z-axis should never be a terrain altitude
     953       29526 :     if (guided_is_terrain_alt) {
     954           0 :         INTERNAL_ERROR(AP_InternalError::error_t::flow_of_control);
     955             :     }
     956             : 
     957       29526 :     float pz = guided_pos_target_ned_m.z;
     958       29526 :     pos_control->input_pos_vel_accel_D_m(pz, guided_vel_target_ned_ms.z, guided_accel_target_ned_mss.z, false);
     959       29526 :     guided_pos_target_ned_m.z = pz;
     960             : 
     961             :     // run position controllers
     962       29526 :     pos_control->NE_update_controller();
     963       29526 :     pos_control->D_update_controller();
     964             : 
     965             :     // call attitude controller with auto yaw
     966       29526 :     attitude_control->input_thrust_vector_heading(pos_control->get_thrust_vector(), auto_yaw.get_heading());
     967             : }
     968             : 
     969             : // angle_control_run - runs the guided angle controller
     970             : // called from guided_run
     971      100766 : void ModeGuided::angle_control_run()
     972             : {
     973      100766 :     float climb_rate_ms = 0.0f;
     974      100766 :     if (!guided_angle_state.use_thrust) {
     975             :         // constrain climb rate
     976       99566 :         climb_rate_ms = constrain_float(guided_angle_state.climb_rate_ms, -wp_nav->get_default_speed_down_ms(), wp_nav->get_default_speed_up_ms());
     977             : 
     978             :         // get avoidance adjusted climb rate
     979       99566 :         climb_rate_ms = get_avoidance_adjusted_climbrate_ms(climb_rate_ms);
     980             :     }
     981             : 
     982             :     // check for timeout - set lean angles and climb rate to zero if no updates received for 3 seconds
     983      100766 :     uint32_t tnow = millis();
     984      100766 :     if (tnow - guided_angle_state.update_time_ms > get_timeout_ms()) {
     985       65555 :         guided_angle_state.attitude_quat.from_euler(Vector3f{0.0, 0.0, attitude_control->get_att_target_euler_rad().z});
     986       65555 :         guided_angle_state.ang_vel_body.zero();
     987       65555 :         climb_rate_ms = 0.0f;
     988       65555 :         if (guided_angle_state.use_thrust) {
     989             :             // initialise vertical velocity controller
     990           1 :             pos_control->D_init_controller();
     991           1 :             guided_angle_state.use_thrust = false;
     992             :         }
     993             :     }
     994             : 
     995             :     // interpret positive climb rate or thrust as triggering take-off
     996      100766 :     const bool positive_thrust_or_climbrate = is_positive(guided_angle_state.use_thrust ? guided_angle_state.thrust_norm : climb_rate_ms);
     997      100766 :     if (motors->armed() && positive_thrust_or_climbrate) {
     998       18493 :         copter.set_auto_armed(true);
     999             :     }
    1000             : 
    1001             :     // if not armed set throttle to zero and exit immediately
    1002      100766 :     if (!motors->armed() || !copter.ap.auto_armed || (copter.ap.land_complete && !positive_thrust_or_climbrate)) {
    1003             :         // do not spool down tradheli when on the ground with motor interlock enabled
    1004        1440 :         make_safe_ground_handling(copter.is_tradheli() && motors->get_interlock());
    1005        1440 :         return;
    1006             :     }
    1007             : 
    1008             :     // TODO: use get_alt_hold_state_D_ms
    1009             :     // landed with positive desired climb rate or thrust, takeoff
    1010       99326 :     if (copter.ap.land_complete && positive_thrust_or_climbrate) {
    1011         813 :         zero_throttle_and_relax_ac();
    1012         813 :         motors->set_desired_spool_state(AP_Motors::DesiredSpoolState::THROTTLE_UNLIMITED);
    1013         813 :         if (motors->get_spool_state() == AP_Motors::SpoolState::THROTTLE_UNLIMITED) {
    1014           1 :             set_land_complete(false);
    1015           1 :             pos_control->D_init_controller();
    1016             :         }
    1017         813 :         return;
    1018             :     }
    1019             : 
    1020             :     // set motors to full range
    1021       98513 :     motors->set_desired_spool_state(AP_Motors::DesiredSpoolState::THROTTLE_UNLIMITED);
    1022             : 
    1023             :     // call attitude controller
    1024       98513 :     if (guided_angle_state.attitude_quat.is_zero()) {
    1025           0 :         attitude_control->input_rate_bf_roll_pitch_yaw_rads(guided_angle_state.ang_vel_body.x, guided_angle_state.ang_vel_body.y, guided_angle_state.ang_vel_body.z);
    1026             :     } else {
    1027       98513 :         attitude_control->input_quaternion(guided_angle_state.attitude_quat, guided_angle_state.ang_vel_body);
    1028             :     }
    1029             : 
    1030             :     // call position controller
    1031       98513 :     if (guided_angle_state.use_thrust) {
    1032         386 :         attitude_control->set_throttle_out(guided_angle_state.thrust_norm, true, copter.g.throttle_filt);
    1033             :     } else {
    1034       98127 :         pos_control->D_set_pos_target_from_climb_rate_ms(climb_rate_ms);
    1035       98127 :         pos_control->D_update_controller();
    1036             :     }
    1037             : }
    1038             : 
    1039             : // helper function to set yaw state and targets
    1040        3328 : void ModeGuided::set_yaw_state_rad(bool use_yaw, float yaw_rad, bool use_yaw_rate, float yaw_rate_rads, bool relative_angle)
    1041             : {
    1042        3328 :     if (use_yaw && relative_angle) {
    1043           0 :         auto_yaw.set_fixed_yaw_rad(yaw_rad, 0.0f, 0, relative_angle);
    1044        3328 :     } else if (use_yaw && use_yaw_rate) {
    1045           0 :         auto_yaw.set_yaw_angle_and_rate_rad(yaw_rad, yaw_rate_rads);
    1046        3328 :     } else if (use_yaw && !use_yaw_rate) {
    1047         906 :         auto_yaw.set_yaw_angle_and_rate_rad(yaw_rad, 0.0f);
    1048        2422 :     } else if (use_yaw_rate) {
    1049        1162 :         auto_yaw.set_rate_rad(yaw_rate_rads);
    1050             :     } else {
    1051        1260 :         auto_yaw.set_mode_to_default(false);
    1052             :     }
    1053        3328 : }
    1054             : 
    1055             : // returns true if pilot's yaw input should be used to adjust vehicle's heading
    1056     3328433 : bool ModeGuided::use_pilot_yaw(void) const
    1057             : {
    1058     3328433 :     return !option_is_enabled(Option::IgnorePilotYaw);
    1059             : }
    1060             : 
    1061             : // Guided Limit code
    1062             : 
    1063             : // limit_clear - clear/turn off guided limits
    1064          98 : void ModeGuided::limit_clear()
    1065             : {
    1066          98 :     guided_limit.timeout_ms = 0;
    1067          98 :     guided_limit.alt_min_m = 0.0f;
    1068          98 :     guided_limit.alt_max_m = 0.0f;
    1069          98 :     guided_limit.horiz_max_m = 0.0f;
    1070          98 : }
    1071             : 
    1072             : // limit_set - set guided timeout and movement limits
    1073           0 : void ModeGuided::limit_set(uint32_t timeout_ms, float alt_min_m, float alt_max_m, float horiz_max_m)
    1074             : {
    1075           0 :     guided_limit.timeout_ms = timeout_ms;
    1076           0 :     guided_limit.alt_min_m = alt_min_m;
    1077           0 :     guided_limit.alt_max_m = alt_max_m;
    1078           0 :     guided_limit.horiz_max_m = horiz_max_m;
    1079           0 : }
    1080             : 
    1081             : // limit_init_time_and_pos - initialise guided start time and position as reference for limit checking
    1082             : //  only called from AUTO mode's auto_nav_guided_start function
    1083           0 : void ModeGuided::limit_init_time_and_pos()
    1084             : {
    1085             :     // initialise start time
    1086           0 :     guided_limit.start_time_ms = AP_HAL::millis();
    1087             : 
    1088             :     // initialise start position from current position
    1089           0 :     guided_limit.start_pos_ned_m = pos_control->get_pos_estimate_NED_m();
    1090           0 : }
    1091             : 
    1092             : // limit_check - returns true if guided mode has breached a limit
    1093             : //  used when guided is invoked from the NAV_GUIDED_ENABLE mission command
    1094           0 : bool ModeGuided::limit_check()
    1095             : {
    1096             :     // check if we have passed the timeout
    1097           0 :     if ((guided_limit.timeout_ms > 0) && (millis() - guided_limit.start_time_ms >= guided_limit.timeout_ms)) {
    1098           0 :         return true;
    1099             :     }
    1100             : 
    1101             :     // get current location
    1102           0 :     const Vector3p& curr_pos_ned_m = pos_control->get_pos_estimate_NED_m();
    1103             : 
    1104             :     // check if we have gone below min alt
    1105           0 :     if (!is_zero(guided_limit.alt_min_m) && (-curr_pos_ned_m.z < guided_limit.alt_min_m)) {
    1106           0 :         return true;
    1107             :     }
    1108             : 
    1109             :     // check if we have gone above max alt
    1110           0 :     if (!is_zero(guided_limit.alt_max_m) && (-curr_pos_ned_m.z > guided_limit.alt_max_m)) {
    1111           0 :         return true;
    1112             :     }
    1113             : 
    1114             :     // check if we have gone beyond horizontal limit
    1115           0 :     if (guided_limit.horiz_max_m > 0.0f) {
    1116           0 :         const float horiz_offset_m = get_horizontal_distance(guided_limit.start_pos_ned_m.xy(), curr_pos_ned_m.xy());
    1117           0 :         if (horiz_offset_m > guided_limit.horiz_max_m) {
    1118           0 :             return true;
    1119             :         }
    1120             :     }
    1121             : 
    1122             :     // if we got this far we must be within limits
    1123           0 :     return false;
    1124             : }
    1125             : 
    1126        1901 : const Vector3p &ModeGuided::get_target_pos_NED_m() const
    1127             : {
    1128        1901 :     return guided_pos_target_ned_m;
    1129             : }
    1130             : 
    1131        1352 : const Vector3f& ModeGuided::get_target_vel_NED_ms() const
    1132             : {
    1133        1352 :     return guided_vel_target_ned_ms;
    1134             : }
    1135             : 
    1136        1419 : const Vector3f& ModeGuided::get_target_accel_NED_mss() const
    1137             : {
    1138        1419 :     return guided_accel_target_ned_mss;
    1139             : }
    1140             : 
    1141       74529 : float ModeGuided::wp_distance_m() const
    1142             : {
    1143       74529 :     switch(guided_mode) {
    1144           0 :     case SubMode::WP:
    1145           0 :         return wp_nav->get_wp_distance_to_destination_m();
    1146       11398 :     case SubMode::Pos:
    1147       11398 :         return get_horizontal_distance(pos_control->get_pos_estimate_NED_m().xy().tofloat(), guided_pos_target_ned_m.xy().tofloat());
    1148         470 :     case SubMode::PosVelAccel:
    1149         470 :         return pos_control->get_pos_error_NE_m();
    1150       62661 :     default:
    1151       62661 :         return 0.0f;
    1152             :     }
    1153             : }
    1154             : 
    1155       74529 : float ModeGuided::wp_bearing_deg() const
    1156             : {
    1157       74529 :     switch(guided_mode) {
    1158           0 :     case SubMode::WP:
    1159           0 :         return degrees(wp_nav->get_wp_bearing_to_destination_rad());
    1160       11398 :     case SubMode::Pos:
    1161       11398 :         return degrees(get_bearing_rad(pos_control->get_pos_estimate_NED_m().xy().tofloat(), guided_pos_target_ned_m.xy().tofloat()));
    1162         470 :     case SubMode::PosVelAccel:
    1163         470 :         return degrees(pos_control->get_bearing_to_target_rad());
    1164       62661 :     case SubMode::TakeOff:
    1165             :     case SubMode::Accel:
    1166             :     case SubMode::VelAccel:
    1167             :     case SubMode::Angle:
    1168             :         // these do not have bearings
    1169       62661 :         return 0;
    1170             :     }
    1171             :     // compiler guarantees we don't get here
    1172           0 :     return 0.0;
    1173             : }
    1174             : 
    1175       74772 : float ModeGuided::crosstrack_error_m() const
    1176             : {
    1177       74772 :     switch (guided_mode) {
    1178           0 :     case SubMode::WP:
    1179           0 :         return wp_nav->crosstrack_error_m();
    1180       73260 :     case SubMode::Pos:
    1181             :     case SubMode::TakeOff:
    1182             :     case SubMode::Accel:
    1183             :     case SubMode::VelAccel:
    1184             :     case SubMode::PosVelAccel:
    1185       73260 :         return pos_control->crosstrack_error_m();
    1186        1512 :     case SubMode::Angle:
    1187             :         // no track to have a crosstrack to
    1188        1512 :         return 0;
    1189             :     }
    1190             :     // compiler guarantees we don't get here
    1191           0 :     return 0;
    1192             : }
    1193             : 
    1194             : // return guided mode timeout in milliseconds. Only used for velocity, acceleration, angle control, and angular rates
    1195     1125256 : uint32_t ModeGuided::get_timeout_ms() const
    1196             : {
    1197     1125256 :     return MAX(copter.g2.guided_timeout, 0.1) * 1000;
    1198             : }
    1199             : 
    1200             : // pause guide mode
    1201           5 : bool ModeGuided::pause()
    1202             : {
    1203           5 :     _paused = true;
    1204           5 :     return true;
    1205             : }
    1206             : 
    1207             : // resume guided mode
    1208           5 : bool ModeGuided::resume()
    1209             : {
    1210           5 :     _paused = false;
    1211           5 :     return true;
    1212             : }
    1213             : 
    1214             : #endif

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