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ardupilot/ArduCopter/Copter.h

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/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
/*
This is the main Copter class
*/
////////////////////////////////////////////////////////////////////////////////
// Header includes
////////////////////////////////////////////////////////////////////////////////
#include <cmath>
#include <stdio.h>
#include <stdarg.h>
#include <AP_HAL/AP_HAL.h>
// Common dependencies
#include <AP_Common/AP_Common.h> // Common definitions and utility routines for the ArduPilot libraries
#include <AP_Common/Location.h> // Library having the implementation of location class
#include <AP_Param/AP_Param.h> // A system for managing and storing variables that are of general interest to the system.
#include <StorageManager/StorageManager.h> // library for Management for hal.storage to allow for backwards compatible mapping of storage offsets to available storage
// Application dependencies
#include <AP_Logger/AP_Logger.h> // ArduPilot Mega Flash Memory Library
#include <AP_Math/AP_Math.h> // ArduPilot Mega Vector/Matrix math Library
#include <AP_AccelCal/AP_AccelCal.h> // interface and maths for accelerometer calibration
#include <AP_InertialSensor/AP_InertialSensor.h> // ArduPilot Mega Inertial Sensor (accel & gyro) Library
#include <AP_AHRS/AP_AHRS.h> // AHRS (Attitude Heading Reference System) interface library for ArduPilot
#include <AP_Mission/AP_Mission.h> // Mission command library
#include <AP_Mission/AP_Mission_ChangeDetector.h> // Mission command change detection library
#include <AC_AttitudeControl/AC_AttitudeControl_Multi.h> // Attitude control library
#include <AC_AttitudeControl/AC_AttitudeControl_Multi_6DoF.h> // 6DoF Attitude control library
#include <AC_AttitudeControl/AC_AttitudeControl_Heli.h> // Attitude control library for traditional helicopter
#include <AC_AttitudeControl/AC_PosControl.h> // Position control library
#include <AC_AttitudeControl/AC_CommandModel.h> // Command model library
#include <AP_Motors/AP_Motors.h> // AP Motors library
#include <AP_Stats/AP_Stats.h> // statistics library
#include <Filter/Filter.h> // Filter library
#include <AP_Vehicle/AP_Vehicle.h> // needed for AHRS build
#include <AP_InertialNav/AP_InertialNav.h> // inertial navigation library
#include <AC_WPNav/AC_WPNav.h> // ArduCopter waypoint navigation library
#include <AC_WPNav/AC_Loiter.h> // ArduCopter Loiter Mode Library
#include <AC_WPNav/AC_Circle.h> // circle navigation library
#include <AP_Declination/AP_Declination.h> // ArduPilot Mega Declination Helper Library
#include <AP_RCMapper/AP_RCMapper.h> // RC input mapping library
#include <AP_BattMonitor/AP_BattMonitor.h> // Battery monitor library
#include <AP_LandingGear/AP_LandingGear.h> // Landing Gear library
#include <AC_InputManager/AC_InputManager.h> // Pilot input handling library
#include <AC_InputManager/AC_InputManager_Heli.h> // Heli specific pilot input handling library
#include <AP_Arming/AP_Arming.h> // ArduPilot motor arming library
#include <AP_SmartRTL/AP_SmartRTL.h> // ArduPilot Smart Return To Launch Mode (SRTL) library
#include <AP_TempCalibration/AP_TempCalibration.h> // temperature calibration library
#include <AC_AutoTune/AC_AutoTune_Multi.h> // ArduCopter autotune library. support for autotune of multirotors.
#include <AC_AutoTune/AC_AutoTune_Heli.h> // ArduCopter autotune library. support for autotune of helicopters.
#include <AP_Parachute/AP_Parachute.h> // ArduPilot parachute release library
#include <AC_Sprayer/AC_Sprayer.h> // Crop sprayer library
#include <AP_ADSB/AP_ADSB.h> // ADS-B RF based collision avoidance module library
#include <AP_Proximity/AP_Proximity.h> // ArduPilot proximity sensor library
#include <AC_PrecLand/AC_PrecLand_config.h>
#include <AP_OpticalFlow/AP_OpticalFlow.h>
#include <AP_Winch/AP_Winch_config.h>
// Configuration
#include "defines.h"
#include "config.h"
#if FRAME_CONFIG == HELI_FRAME
#define AC_AttitudeControl_t AC_AttitudeControl_Heli
#else
#define AC_AttitudeControl_t AC_AttitudeControl_Multi
#endif
#if FRAME_CONFIG == HELI_FRAME
#define MOTOR_CLASS AP_MotorsHeli
#else
#define MOTOR_CLASS AP_MotorsMulticopter
#endif
#if MODE_AUTOROTATE_ENABLED == ENABLED
#include <AC_Autorotation/AC_Autorotation.h> // Autorotation controllers
#endif
#include "RC_Channel.h" // RC Channel Library
#include "GCS_Mavlink.h"
#include "GCS_Copter.h"
#include "AP_Rally.h" // Rally point library
#include "AP_Arming.h"
#include <AP_ExternalControl/AP_ExternalControl_config.h>
#if AP_EXTERNAL_CONTROL_ENABLED
#include "AP_ExternalControl_Copter.h"
#endif
#include <AP_Beacon/AP_Beacon_config.h>
#if AP_BEACON_ENABLED
#include <AP_Beacon/AP_Beacon.h>
#endif
#if AC_AVOID_ENABLED == ENABLED
#include <AC_Avoidance/AC_Avoid.h>
#endif
#if AC_OAPATHPLANNER_ENABLED == ENABLED
#include <AC_WPNav/AC_WPNav_OA.h>
#include <AC_Avoidance/AP_OAPathPlanner.h>
#endif
#include <AP_Gripper/AP_Gripper_config.h>
#if AP_GRIPPER_ENABLED
# include <AP_Gripper/AP_Gripper.h>
#endif
#if AC_PRECLAND_ENABLED
# include <AC_PrecLand/AC_PrecLand.h>
# include <AC_PrecLand/AC_PrecLand_StateMachine.h>
#endif
#if MODE_FOLLOW_ENABLED == ENABLED
# include <AP_Follow/AP_Follow.h>
#endif
#if AP_TERRAIN_AVAILABLE
# include <AP_Terrain/AP_Terrain.h>
#endif
#if RANGEFINDER_ENABLED == ENABLED
# include <AP_RangeFinder/AP_RangeFinder.h>
#endif
#include <AP_Mount/AP_Mount.h>
#include <AP_Camera/AP_Camera.h>
#if HAL_BUTTON_ENABLED
# include <AP_Button/AP_Button.h>
#endif
#if OSD_ENABLED || OSD_PARAM_ENABLED
#include <AP_OSD/AP_OSD.h>
#endif
#if ADVANCED_FAILSAFE == ENABLED
# include "afs_copter.h"
#endif
#if TOY_MODE_ENABLED == ENABLED
# include "toy_mode.h"
#endif
#if AP_WINCH_ENABLED
# include <AP_Winch/AP_Winch.h>
#endif
#include <AP_RPM/AP_RPM.h>
#if AP_SCRIPTING_ENABLED
#include <AP_Scripting/AP_Scripting.h>
#endif
#if AC_CUSTOMCONTROL_MULTI_ENABLED == ENABLED
#include <AC_CustomControl/AC_CustomControl.h> // Custom control library
#endif
#if AC_AVOID_ENABLED && !AP_FENCE_ENABLED
#error AC_Avoidance relies on AP_FENCE_ENABLED which is disabled
#endif
#if AC_OAPATHPLANNER_ENABLED && !AP_FENCE_ENABLED
#error AP_OAPathPlanner relies on AP_FENCE_ENABLED which is disabled
#endif
// Local modules
#ifdef USER_PARAMS_ENABLED
#include "UserParameters.h"
#endif
#include "Parameters.h"
#if HAL_ADSB_ENABLED
#include "avoidance_adsb.h"
#endif
#include "mode.h"
class Copter : public AP_Vehicle {
public:
friend class GCS_MAVLINK_Copter;
friend class GCS_Copter;
friend class AP_Rally_Copter;
friend class Parameters;
friend class ParametersG2;
friend class AP_Avoidance_Copter;
#if ADVANCED_FAILSAFE == ENABLED
friend class AP_AdvancedFailsafe_Copter;
#endif
friend class AP_Arming_Copter;
#if AP_EXTERNAL_CONTROL_ENABLED
friend class AP_ExternalControl_Copter;
#endif
friend class ToyMode;
friend class RC_Channel_Copter;
friend class RC_Channels_Copter;
friend class AutoTune;
friend class Mode;
friend class ModeAcro;
friend class ModeAcro_Heli;
friend class ModeAltHold;
friend class ModeAuto;
friend class ModeAutoTune;
friend class ModeAvoidADSB;
friend class ModeBrake;
friend class ModeCircle;
friend class ModeDrift;
friend class ModeFlip;
friend class ModeFlowHold;
friend class ModeFollow;
friend class ModeGuided;
friend class ModeLand;
friend class ModeLoiter;
friend class ModePosHold;
friend class ModeRTL;
friend class ModeSmartRTL;
friend class ModeSport;
friend class ModeStabilize;
friend class ModeStabilize_Heli;
friend class ModeSystemId;
friend class ModeThrow;
friend class ModeZigZag;
friend class ModeAutorotate;
friend class ModeTurtle;
friend class _AutoTakeoff;
friend class PayloadPlace;
Copter(void);
private:
// key aircraft parameters passed to multiple libraries
AP_MultiCopter aparm;
// Global parameters are all contained within the 'g' class.
Parameters g;
ParametersG2 g2;
// used to detect MAVLink acks from GCS to stop compassmot
uint8_t command_ack_counter;
// primary input control channels
RC_Channel *channel_roll;
RC_Channel *channel_pitch;
RC_Channel *channel_throttle;
RC_Channel *channel_yaw;
AP_Logger logger;
// flight modes convenience array
AP_Int8 *flight_modes;
const uint8_t num_flight_modes = 6;
struct RangeFinderState {
bool enabled:1;
bool alt_healthy:1; // true if we can trust the altitude from the rangefinder
int16_t alt_cm; // tilt compensated altitude (in cm) from rangefinder
float inertial_alt_cm; // inertial alt at time of last rangefinder sample
uint32_t last_healthy_ms;
LowPassFilterFloat alt_cm_filt; // altitude filter
int16_t alt_cm_glitch_protected; // last glitch protected altitude
int8_t glitch_count; // non-zero number indicates rangefinder is glitching
uint32_t glitch_cleared_ms; // system time glitch cleared
float terrain_offset_cm; // filtered terrain offset (e.g. terrain's height above EKF origin)
} rangefinder_state, rangefinder_up_state;
// return rangefinder height interpolated using inertial altitude
bool get_rangefinder_height_interpolated_cm(int32_t& ret) const;
class SurfaceTracking {
public:
// update_surface_offset - manages the vertical offset of the position controller to follow the
// measured ground or ceiling level measured using the range finder.
void update_surface_offset();
// get/set target altitude (in cm) above ground
bool get_target_alt_cm(float &target_alt_cm) const;
void set_target_alt_cm(float target_alt_cm);
// get target and actual distances (in m) for logging purposes
bool get_target_dist_for_logging(float &target_dist) const;
float get_dist_for_logging() const;
void invalidate_for_logging() { valid_for_logging = false; }
// surface tracking surface
enum class Surface {
NONE = 0,
GROUND = 1,
CEILING = 2
};
// set surface to track
void set_surface(Surface new_surface);
// initialise surface tracking
void init(Surface surf) { surface = surf; }
private:
Surface surface;
uint32_t last_update_ms; // system time of last update to target_alt_cm
uint32_t last_glitch_cleared_ms; // system time of last handle glitch recovery
bool valid_for_logging; // true if we have a desired target altitude
bool reset_target; // true if target should be reset because of change in surface being tracked
} surface_tracking;
#if AP_RPM_ENABLED
AP_RPM rpm_sensor;
#endif
// Inertial Navigation EKF - different viewpoint
AP_AHRS_View *ahrs_view;
// Arming/Disarming management class
AP_Arming_Copter arming;
// Optical flow sensor
#if AP_OPTICALFLOW_ENABLED
AP_OpticalFlow optflow;
#endif
// external control library
#if AP_EXTERNAL_CONTROL_ENABLED
AP_ExternalControl_Copter external_control;
#endif
// system time in milliseconds of last recorded yaw reset from ekf
uint32_t ekfYawReset_ms;
int8_t ekf_primary_core;
// vibration check
struct {
bool high_vibes; // true while high vibration are detected
uint32_t start_ms; // system time high vibration were last detected
uint32_t clear_ms; // system time high vibrations stopped
} vibration_check;
// takeoff check
uint32_t takeoff_check_warning_ms; // system time user was last warned of takeoff check failure
// GCS selection
GCS_Copter _gcs; // avoid using this; use gcs()
GCS_Copter &gcs() { return _gcs; }
// User variables
#ifdef USERHOOK_VARIABLES
# include USERHOOK_VARIABLES
#endif
// Documentation of GLobals:
typedef union {
struct {
uint8_t unused1 : 1; // 0
uint8_t unused_was_simple_mode : 2; // 1,2
uint8_t pre_arm_rc_check : 1; // 3 // true if rc input pre-arm checks have been completed successfully
uint8_t pre_arm_check : 1; // 4 // true if all pre-arm checks (rc, accel calibration, gps lock) have been performed
uint8_t auto_armed : 1; // 5 // stops auto missions from beginning until throttle is raised
uint8_t logging_started : 1; // 6 // true if logging has started
uint8_t land_complete : 1; // 7 // true if we have detected a landing
uint8_t new_radio_frame : 1; // 8 // Set true if we have new PWM data to act on from the Radio
uint8_t usb_connected_unused : 1; // 9 // UNUSED
uint8_t rc_receiver_present : 1; // 10 // true if we have an rc receiver present (i.e. if we've ever received an update
uint8_t compass_mot : 1; // 11 // true if we are currently performing compassmot calibration
uint8_t motor_test : 1; // 12 // true if we are currently performing the motors test
uint8_t initialised : 1; // 13 // true once the init_ardupilot function has completed. Extended status to GCS is not sent until this completes
uint8_t land_complete_maybe : 1; // 14 // true if we may have landed (less strict version of land_complete)
uint8_t throttle_zero : 1; // 15 // true if the throttle stick is at zero, debounced, determines if pilot intends shut-down when not using motor interlock
uint8_t system_time_set_unused : 1; // 16 // true if the system time has been set from the GPS
uint8_t gps_glitching : 1; // 17 // true if GPS glitching is affecting navigation accuracy
uint8_t using_interlock : 1; // 20 // aux switch motor interlock function is in use
uint8_t land_repo_active : 1; // 21 // true if the pilot is overriding the landing position
uint8_t motor_interlock_switch : 1; // 22 // true if pilot is requesting motor interlock enable
uint8_t in_arming_delay : 1; // 23 // true while we are armed but waiting to spin motors
uint8_t initialised_params : 1; // 24 // true when the all parameters have been initialised. we cannot send parameters to the GCS until this is done
uint8_t unused3 : 1; // 25 // was compass_init_location; true when the compass's initial location has been set
uint8_t unused2 : 1; // 26 // aux switch rc_override is allowed
uint8_t armed_with_airmode_switch : 1; // 27 // we armed using a arming switch
uint8_t prec_land_active : 1; // 28 // true if precland is active
};
uint32_t value;
} ap_t;
ap_t ap;
AirMode air_mode; // air mode is 0 = not-configured ; 1 = disabled; 2 = enabled;
bool force_flying; // force flying is enabled when true;
static_assert(sizeof(uint32_t) == sizeof(ap), "ap_t must be uint32_t");
// This is the state of the flight control system
// There are multiple states defined such as STABILIZE, ACRO,
Mode *flightmode;
Mode::Number prev_control_mode;
RCMapper rcmap;
// inertial nav alt when we armed
float arming_altitude_m;
// Failsafe
struct {
uint32_t terrain_first_failure_ms; // the first time terrain data access failed - used to calculate the duration of the failure
uint32_t terrain_last_failure_ms; // the most recent time terrain data access failed
int8_t radio_counter; // number of iterations with throttle below throttle_fs_value
uint8_t radio : 1; // A status flag for the radio failsafe
uint8_t gcs : 1; // A status flag for the ground station failsafe
uint8_t ekf : 1; // true if ekf failsafe has occurred
uint8_t terrain : 1; // true if the missing terrain data failsafe has occurred
uint8_t adsb : 1; // true if an adsb related failsafe has occurred
uint8_t deadreckon : 1; // true if a dead reckoning failsafe has triggered
} failsafe;
bool any_failsafe_triggered() const {
return failsafe.radio || battery.has_failsafed() || failsafe.gcs || failsafe.ekf || failsafe.terrain || failsafe.adsb || failsafe.deadreckon;
}
// dead reckoning state
struct {
bool active; // true if dead reckoning (position estimate using estimated airspeed, no position or velocity source)
bool timeout; // true if dead reckoning has timedout and EKF's position and velocity estimate should no longer be trusted
uint32_t start_ms; // system time that EKF began deadreckoning
} dead_reckoning;
// Motor Output
MOTOR_CLASS *motors;
const struct AP_Param::GroupInfo *motors_var_info;
int32_t _home_bearing;
uint32_t _home_distance;
// SIMPLE Mode
// Used to track the orientation of the vehicle for Simple mode. This value is reset at each arming
// or in SuperSimple mode when the vehicle leaves a 20m radius from home.
enum class SimpleMode {
NONE = 0,
SIMPLE = 1,
SUPERSIMPLE = 2,
} simple_mode;
float simple_cos_yaw;
float simple_sin_yaw;
int32_t super_simple_last_bearing;
float super_simple_cos_yaw;
float super_simple_sin_yaw;
// Stores initial bearing when armed - initial simple bearing is modified in super simple mode so not suitable
int32_t initial_armed_bearing;
// Battery Sensors
AP_BattMonitor battery{MASK_LOG_CURRENT,
FUNCTOR_BIND_MEMBER(&Copter::handle_battery_failsafe, void, const char*, const int8_t),
_failsafe_priorities};
#if OSD_ENABLED || OSD_PARAM_ENABLED
AP_OSD osd;
#endif
// Altitude
int32_t baro_alt; // barometer altitude in cm above home
LowPassFilterVector3f land_accel_ef_filter; // accelerations for land and crash detector tests
// filtered pilot's throttle input used to cancel landing if throttle held high
LowPassFilterFloat rc_throttle_control_in_filter;
// 3D Location vectors
// Current location of the vehicle (altitude is relative to home)
Location current_loc;
// Inertial Navigation
AP_InertialNav inertial_nav;
// Attitude, Position and Waypoint navigation objects
// To-Do: move inertial nav up or other navigation variables down here
AC_AttitudeControl_t *attitude_control;
AC_PosControl *pos_control;
AC_WPNav *wp_nav;
AC_Loiter *loiter_nav;
#if AC_CUSTOMCONTROL_MULTI_ENABLED == ENABLED
AC_CustomControl custom_control{ahrs_view, attitude_control, motors, scheduler.get_loop_period_s()};
#endif
#if MODE_CIRCLE_ENABLED == ENABLED
AC_Circle *circle_nav;
#endif
// System Timers
// --------------
// arm_time_ms - Records when vehicle was armed. Will be Zero if we are disarmed.
uint32_t arm_time_ms;
// Used to exit the roll and pitch auto trim function
uint8_t auto_trim_counter;
bool auto_trim_started = false;
// Camera
#if AP_CAMERA_ENABLED
AP_Camera camera{MASK_LOG_CAMERA};
#endif
// Camera/Antenna mount tracking and stabilisation stuff
#if HAL_MOUNT_ENABLED
AP_Mount camera_mount;
#endif
#if AC_AVOID_ENABLED == ENABLED
AC_Avoid avoid;
#endif
// Rally library
#if HAL_RALLY_ENABLED
AP_Rally_Copter rally;
#endif
// Crop Sprayer
#if HAL_SPRAYER_ENABLED
AC_Sprayer sprayer;
#endif
// Parachute release
#if PARACHUTE == ENABLED
AP_Parachute parachute;
#endif
// Landing Gear Controller
#if AP_LANDINGGEAR_ENABLED
AP_LandingGear landinggear;
#endif
// terrain handling
#if AP_TERRAIN_AVAILABLE
AP_Terrain terrain;
#endif
// Precision Landing
#if AC_PRECLAND_ENABLED
AC_PrecLand precland;
AC_PrecLand_StateMachine precland_statemachine;
#endif
// Pilot Input Management Library
// Only used for Helicopter for now
#if FRAME_CONFIG == HELI_FRAME
AC_InputManager_Heli input_manager;
#endif
#if HAL_ADSB_ENABLED
AP_ADSB adsb;
// avoidance of adsb enabled vehicles (normally manned vehicles)
AP_Avoidance_Copter avoidance_adsb{adsb};
#endif
// last valid RC input time
uint32_t last_radio_update_ms;
// last esc calibration notification update
uint32_t esc_calibration_notify_update_ms;
// Top-level logic
// setup the var_info table
AP_Param param_loader;
#if FRAME_CONFIG == HELI_FRAME
// Mode filter to reject RC Input glitches. Filter size is 5, and it draws the 4th element, so it can reject 3 low glitches,
// and 1 high glitch. This is because any "off" glitches can be highly problematic for a helicopter running an ESC
// governor. Even a single "off" frame can cause the rotor to slow dramatically and take a long time to restart.
ModeFilterInt16_Size5 rotor_speed_deglitch_filter {4};
// Tradheli flags
typedef struct {
uint8_t dynamic_flight : 1; // 0 // true if we are moving at a significant speed (used to turn on/off leaky I terms)
uint8_t inverted_flight : 1; // 1 // true for inverted flight mode
uint8_t in_autorotation : 1; // 2 // true when heli is in autorotation
bool coll_stk_low ; // 3 // true when collective stick is on lower limit
} heli_flags_t;
heli_flags_t heli_flags;
int16_t hover_roll_trim_scalar_slew;
#endif
// ground effect detector
struct {
bool takeoff_expected;
bool touchdown_expected;
uint32_t takeoff_time_ms;
float takeoff_alt_cm;
} gndeffect_state;
bool standby_active;
static const AP_Scheduler::Task scheduler_tasks[];
static const AP_Param::Info var_info[];
static const struct LogStructure log_structure[];
// enum for ESC CALIBRATION
enum ESCCalibrationModes : uint8_t {
ESCCAL_NONE = 0,
ESCCAL_PASSTHROUGH_IF_THROTTLE_HIGH = 1,
ESCCAL_PASSTHROUGH_ALWAYS = 2,
ESCCAL_AUTO = 3,
ESCCAL_DISABLED = 9,
};
enum class FailsafeAction : uint8_t {
NONE = 0,
LAND = 1,
RTL = 2,
SMARTRTL = 3,
SMARTRTL_LAND = 4,
TERMINATE = 5,
AUTO_DO_LAND_START = 6,
BRAKE_LAND = 7
};
enum class FailsafeOption {
RC_CONTINUE_IF_AUTO = (1<<0), // 1
GCS_CONTINUE_IF_AUTO = (1<<1), // 2
RC_CONTINUE_IF_GUIDED = (1<<2), // 4
CONTINUE_IF_LANDING = (1<<3), // 8
GCS_CONTINUE_IF_PILOT_CONTROL = (1<<4), // 16
RELEASE_GRIPPER = (1<<5), // 32
};
enum class FlightOptions {
DISABLE_THRUST_LOSS_CHECK = (1<<0), // 1
DISABLE_YAW_IMBALANCE_WARNING = (1<<1), // 2
RELEASE_GRIPPER_ON_THRUST_LOSS = (1<<2), // 4
};
static constexpr int8_t _failsafe_priorities[] = {
(int8_t)FailsafeAction::TERMINATE,
(int8_t)FailsafeAction::LAND,
(int8_t)FailsafeAction::RTL,
(int8_t)FailsafeAction::SMARTRTL_LAND,
(int8_t)FailsafeAction::SMARTRTL,
(int8_t)FailsafeAction::NONE,
-1 // the priority list must end with a sentinel of -1
};
#define FAILSAFE_LAND_PRIORITY 1
static_assert(_failsafe_priorities[FAILSAFE_LAND_PRIORITY] == (int8_t)FailsafeAction::LAND,
"FAILSAFE_LAND_PRIORITY must match the entry in _failsafe_priorities");
static_assert(_failsafe_priorities[ARRAY_SIZE(_failsafe_priorities) - 1] == -1,
"_failsafe_priorities is missing the sentinel");
// AP_State.cpp
void set_auto_armed(bool b);
void set_simple_mode(SimpleMode b);
void set_failsafe_radio(bool b);
void set_failsafe_gcs(bool b);
void update_using_interlock();
// Copter.cpp
void get_scheduler_tasks(const AP_Scheduler::Task *&tasks,
uint8_t &task_count,
uint32_t &log_bit) override;
#if AP_SCRIPTING_ENABLED
#if MODE_GUIDED_ENABLED == ENABLED
bool start_takeoff(float alt) override;
bool set_target_location(const Location& target_loc) override;
bool set_target_pos_NED(const Vector3f& target_pos, bool use_yaw, float yaw_deg, bool use_yaw_rate, float yaw_rate_degs, bool yaw_relative, bool terrain_alt) override;
bool set_target_posvel_NED(const Vector3f& target_pos, const Vector3f& target_vel) override;
bool set_target_posvelaccel_NED(const Vector3f& target_pos, const Vector3f& target_vel, const Vector3f& target_accel, bool use_yaw, float yaw_deg, bool use_yaw_rate, float yaw_rate_degs, bool yaw_relative) override;
bool set_target_velocity_NED(const Vector3f& vel_ned) override;
bool set_target_velaccel_NED(const Vector3f& target_vel, const Vector3f& target_accel, bool use_yaw, float yaw_deg, bool use_yaw_rate, float yaw_rate_degs, bool relative_yaw) override;
bool set_target_angle_and_climbrate(float roll_deg, float pitch_deg, float yaw_deg, float climb_rate_ms, bool use_yaw_rate, float yaw_rate_degs) override;
#endif
#if MODE_CIRCLE_ENABLED == ENABLED
bool get_circle_radius(float &radius_m) override;
bool set_circle_rate(float rate_dps) override;
#endif
bool set_desired_speed(float speed) override;
#if MODE_AUTO_ENABLED == ENABLED
bool nav_scripting_enable(uint8_t mode) override;
bool nav_script_time(uint16_t &id, uint8_t &cmd, float &arg1, float &arg2, int16_t &arg3, int16_t &arg4) override;
void nav_script_time_done(uint16_t id) override;
#endif
// lua scripts use this to retrieve EKF failsafe state
// returns true if the EKF failsafe has triggered
bool has_ekf_failsafed() const override;
#endif // AP_SCRIPTING_ENABLED
bool is_landing() const override;
bool is_taking_off() const override;
void rc_loop();
void throttle_loop();
void update_batt_compass(void);
void loop_rate_logging();
void ten_hz_logging_loop();
void twentyfive_hz_logging();
void three_hz_loop();
void one_hz_loop();
void init_simple_bearing();
void update_simple_mode(void);
void update_super_simple_bearing(bool force_update);
void read_AHRS(void);
void update_altitude();
bool get_wp_distance_m(float &distance) const override;
bool get_wp_bearing_deg(float &bearing) const override;
bool get_wp_crosstrack_error_m(float &xtrack_error) const override;
bool get_rate_ef_targets(Vector3f& rate_ef_targets) const override;
// Attitude.cpp
void update_throttle_hover();
float get_pilot_desired_climb_rate(float throttle_control);
float get_non_takeoff_throttle();
void set_accel_throttle_I_from_pilot_throttle();
void rotate_body_frame_to_NE(float &x, float &y);
uint16_t get_pilot_speed_dn() const;
void run_rate_controller();
#if AC_CUSTOMCONTROL_MULTI_ENABLED == ENABLED
void run_custom_controller() { custom_control.update(); }
#endif
// avoidance.cpp
void low_alt_avoidance();
#if HAL_ADSB_ENABLED
// avoidance_adsb.cpp
void avoidance_adsb_update(void);
#endif
// baro_ground_effect.cpp
void update_ground_effect_detector(void);
void update_ekf_terrain_height_stable();
// commands.cpp
void update_home_from_EKF();
void set_home_to_current_location_inflight();
bool set_home_to_current_location(bool lock) WARN_IF_UNUSED;
bool set_home(const Location& loc, bool lock) WARN_IF_UNUSED;
bool far_from_EKF_origin(const Location& loc);
// compassmot.cpp
MAV_RESULT mavlink_compassmot(const GCS_MAVLINK &gcs_chan);
// crash_check.cpp
void crash_check();
void thrust_loss_check();
void yaw_imbalance_check();
LowPassFilterFloat yaw_I_filt{0.05f};
uint32_t last_yaw_warn_ms;
void parachute_check();
void parachute_release();
void parachute_manual_release();
// ekf_check.cpp
void ekf_check();
bool ekf_over_threshold();
void failsafe_ekf_event();
void failsafe_ekf_off_event(void);
void failsafe_ekf_recheck();
void check_ekf_reset();
void check_vibration();
// esc_calibration.cpp
void esc_calibration_startup_check();
void esc_calibration_passthrough();
void esc_calibration_auto();
void esc_calibration_notify();
void esc_calibration_setup();
// events.cpp
bool failsafe_option(FailsafeOption opt) const;
void failsafe_radio_on_event();
void failsafe_radio_off_event();
void handle_battery_failsafe(const char* type_str, const int8_t action);
void failsafe_gcs_check();
void failsafe_gcs_on_event(void);
void failsafe_gcs_off_event(void);
void failsafe_terrain_check();
void failsafe_terrain_set_status(bool data_ok);
void failsafe_terrain_on_event();
void gpsglitch_check();
void failsafe_deadreckon_check();
void set_mode_RTL_or_land_with_pause(ModeReason reason);
void set_mode_SmartRTL_or_RTL(ModeReason reason);
void set_mode_SmartRTL_or_land_with_pause(ModeReason reason);
void set_mode_auto_do_land_start_or_RTL(ModeReason reason);
void set_mode_brake_or_land_with_pause(ModeReason reason);
bool should_disarm_on_failsafe();
void do_failsafe_action(FailsafeAction action, ModeReason reason);
void announce_failsafe(const char *type, const char *action_undertaken=nullptr);
// failsafe.cpp
void failsafe_enable();
void failsafe_disable();
#if ADVANCED_FAILSAFE == ENABLED
void afs_fs_check(void);
#endif
// fence.cpp
#if AP_FENCE_ENABLED
void fence_check();
#endif
// heli.cpp
void heli_init();
void check_dynamic_flight(void);
bool should_use_landing_swash() const;
void update_heli_control_dynamics(void);
void heli_update_landing_swash();
float get_pilot_desired_rotor_speed() const;
void heli_update_rotor_speed_targets();
void heli_update_autorotation();
void update_collective_low_flag(int16_t throttle_control);
// inertia.cpp
void read_inertia();
// landing_detector.cpp
void update_land_and_crash_detectors();
void update_land_detector();
void set_land_complete(bool b);
void set_land_complete_maybe(bool b);
void update_throttle_mix();
#if AP_LANDINGGEAR_ENABLED
// landing_gear.cpp
void landinggear_update();
#endif
// standby.cpp
void standby_update();
// Log.cpp
void Log_Write_Control_Tuning();
void Log_Write_Attitude();
void Log_Write_EKF_POS();
void Log_Write_PIDS();
void Log_Write_Data(LogDataID id, int32_t value);
void Log_Write_Data(LogDataID id, uint32_t value);
void Log_Write_Data(LogDataID id, int16_t value);
void Log_Write_Data(LogDataID id, uint16_t value);
void Log_Write_Data(LogDataID id, float value);
void Log_Write_Parameter_Tuning(uint8_t param, float tuning_val, float tune_min, float tune_max);
void Log_Video_Stabilisation();
#if FRAME_CONFIG == HELI_FRAME
void Log_Write_Heli(void);
#endif
void Log_Write_Guided_Position_Target(ModeGuided::SubMode submode, const Vector3f& pos_target, bool terrain_alt, const Vector3f& vel_target, const Vector3f& accel_target);
void Log_Write_Guided_Attitude_Target(ModeGuided::SubMode target_type, float roll, float pitch, float yaw, const Vector3f &ang_vel, float thrust, float climb_rate);
void Log_Write_SysID_Setup(uint8_t systemID_axis, float waveform_magnitude, float frequency_start, float frequency_stop, float time_fade_in, float time_const_freq, float time_record, float time_fade_out);
void Log_Write_SysID_Data(float waveform_time, float waveform_sample, float waveform_freq, float angle_x, float angle_y, float angle_z, float accel_x, float accel_y, float accel_z);
void Log_Write_Vehicle_Startup_Messages();
void log_init(void);
// mode.cpp
bool set_mode(Mode::Number mode, ModeReason reason);
bool set_mode(const uint8_t new_mode, const ModeReason reason) override;
ModeReason _last_reason;
// called when an attempt to change into a mode is unsuccessful:
void mode_change_failed(const Mode *mode, const char *reason);
uint8_t get_mode() const override { return (uint8_t)flightmode->mode_number(); }
bool current_mode_requires_mission() const override;
void update_flight_mode();
void notify_flight_mode();
// Check if this mode can be entered from the GCS
bool gcs_mode_enabled(const Mode::Number mode_num);
// mode_land.cpp
void set_mode_land_with_pause(ModeReason reason);
bool landing_with_GPS();
// motor_test.cpp
void motor_test_output();
bool mavlink_motor_control_check(const GCS_MAVLINK &gcs_chan, bool check_rc, const char* mode);
MAV_RESULT mavlink_motor_test_start(const GCS_MAVLINK &gcs_chan, uint8_t motor_seq, uint8_t throttle_type, float throttle_value, float timeout_sec, uint8_t motor_count);
void motor_test_stop();
// motors.cpp
void arm_motors_check();
void auto_disarm_check();
void motors_output();
void lost_vehicle_check();
// navigation.cpp
void run_nav_updates(void);
int32_t home_bearing();
uint32_t home_distance();
// Parameters.cpp
void load_parameters(void) override;
void convert_pid_parameters(void);
#if HAL_PROXIMITY_ENABLED
void convert_prx_parameters();
#endif
void convert_lgr_parameters(void);
void convert_tradheli_parameters(void) const;
// precision_landing.cpp
void init_precland();
void update_precland();
// radio.cpp
void default_dead_zones();
void init_rc_in();
void init_rc_out();
void read_radio();
void set_throttle_and_failsafe(uint16_t throttle_pwm);
void set_throttle_zero_flag(int16_t throttle_control);
void radio_passthrough_to_motors();
int16_t get_throttle_mid(void);
// sensors.cpp
void read_barometer(void);
void init_rangefinder(void);
void read_rangefinder(void);
bool rangefinder_alt_ok() const;
bool rangefinder_up_ok() const;
void update_rangefinder_terrain_offset();
void update_optical_flow(void);
// takeoff_check.cpp
void takeoff_check();
// RC_Channel.cpp
void save_trim();
void auto_trim();
void auto_trim_cancel();
// system.cpp
void init_ardupilot() override;
void startup_INS_ground();
bool position_ok() const;
bool ekf_has_absolute_position() const;
bool ekf_has_relative_position() const;
bool ekf_alt_ok() const;
void update_auto_armed();
bool should_log(uint32_t mask);
const char* get_frame_string() const;
void allocate_motors(void);
bool is_tradheli() const;
// terrain.cpp
void terrain_update();
void terrain_logging();
// tuning.cpp
void tuning();
// UserCode.cpp
void userhook_init();
void userhook_FastLoop();
void userhook_50Hz();
void userhook_MediumLoop();
void userhook_SlowLoop();
void userhook_SuperSlowLoop();
void userhook_auxSwitch1(const RC_Channel::AuxSwitchPos ch_flag);
void userhook_auxSwitch2(const RC_Channel::AuxSwitchPos ch_flag);
void userhook_auxSwitch3(const RC_Channel::AuxSwitchPos ch_flag);
#if MODE_ACRO_ENABLED == ENABLED
#if FRAME_CONFIG == HELI_FRAME
ModeAcro_Heli mode_acro;
#else
ModeAcro mode_acro;
#endif
#endif
ModeAltHold mode_althold;
#if MODE_AUTO_ENABLED == ENABLED
ModeAuto mode_auto;
#endif
#if AUTOTUNE_ENABLED == ENABLED
ModeAutoTune mode_autotune;
#endif
#if MODE_BRAKE_ENABLED == ENABLED
ModeBrake mode_brake;
#endif
#if MODE_CIRCLE_ENABLED == ENABLED
ModeCircle mode_circle;
#endif
#if MODE_DRIFT_ENABLED == ENABLED
ModeDrift mode_drift;
#endif
#if MODE_FLIP_ENABLED == ENABLED
ModeFlip mode_flip;
#endif
#if MODE_FOLLOW_ENABLED == ENABLED
ModeFollow mode_follow;
#endif
#if MODE_GUIDED_ENABLED == ENABLED
ModeGuided mode_guided;
#endif
ModeLand mode_land;
#if MODE_LOITER_ENABLED == ENABLED
ModeLoiter mode_loiter;
#endif
#if MODE_POSHOLD_ENABLED == ENABLED
ModePosHold mode_poshold;
#endif
#if MODE_RTL_ENABLED == ENABLED
ModeRTL mode_rtl;
#endif
#if FRAME_CONFIG == HELI_FRAME
ModeStabilize_Heli mode_stabilize;
#else
ModeStabilize mode_stabilize;
#endif
#if MODE_SPORT_ENABLED == ENABLED
ModeSport mode_sport;
#endif
#if MODE_SYSTEMID_ENABLED == ENABLED
ModeSystemId mode_systemid;
#endif
#if HAL_ADSB_ENABLED
ModeAvoidADSB mode_avoid_adsb;
#endif
#if MODE_THROW_ENABLED == ENABLED
ModeThrow mode_throw;
#endif
#if MODE_GUIDED_NOGPS_ENABLED == ENABLED
ModeGuidedNoGPS mode_guided_nogps;
#endif
#if MODE_SMARTRTL_ENABLED == ENABLED
ModeSmartRTL mode_smartrtl;
#endif
#if MODE_FLOWHOLD_ENABLED == ENABLED
ModeFlowHold mode_flowhold;
#endif
#if MODE_ZIGZAG_ENABLED == ENABLED
ModeZigZag mode_zigzag;
#endif
#if MODE_AUTOROTATE_ENABLED == ENABLED
ModeAutorotate mode_autorotate;
#endif
#if MODE_TURTLE_ENABLED == ENABLED
ModeTurtle mode_turtle;
#endif
// mode.cpp
Mode *mode_from_mode_num(const Mode::Number mode);
void exit_mode(Mode *&old_flightmode, Mode *&new_flightmode);
public:
void failsafe_check(); // failsafe.cpp
};
extern Copter copter;
using AP_HAL::millis;
using AP_HAL::micros;
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