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ardupilot/ArduCopter/mode.h

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#pragma once
#include "Copter.h"
#include <AP_Math/chirp.h>
class Parameters;
class ParametersG2;
class GCS_Copter;
class Mode {
public:
// Auto Pilot Modes enumeration
enum class Number : uint8_t {
STABILIZE = 0, // manual airframe angle with manual throttle
ACRO = 1, // manual body-frame angular rate with manual throttle
ALT_HOLD = 2, // manual airframe angle with automatic throttle
AUTO = 3, // fully automatic waypoint control using mission commands
GUIDED = 4, // fully automatic fly to coordinate or fly at velocity/direction using GCS immediate commands
LOITER = 5, // automatic horizontal acceleration with automatic throttle
RTL = 6, // automatic return to launching point
CIRCLE = 7, // automatic circular flight with automatic throttle
LAND = 9, // automatic landing with horizontal position control
DRIFT = 11, // semi-autonomous position, yaw and throttle control
SPORT = 13, // manual earth-frame angular rate control with manual throttle
FLIP = 14, // automatically flip the vehicle on the roll axis
AUTOTUNE = 15, // automatically tune the vehicle's roll and pitch gains
POSHOLD = 16, // automatic position hold with manual override, with automatic throttle
BRAKE = 17, // full-brake using inertial/GPS system, no pilot input
THROW = 18, // throw to launch mode using inertial/GPS system, no pilot input
AVOID_ADSB = 19, // automatic avoidance of obstacles in the macro scale - e.g. full-sized aircraft
GUIDED_NOGPS = 20, // guided mode but only accepts attitude and altitude
SMART_RTL = 21, // SMART_RTL returns to home by retracing its steps
FLOWHOLD = 22, // FLOWHOLD holds position with optical flow without rangefinder
FOLLOW = 23, // follow attempts to follow another vehicle or ground station
ZIGZAG = 24, // ZIGZAG mode is able to fly in a zigzag manner with predefined point A and point B
SYSTEMID = 25, // System ID mode produces automated system identification signals in the controllers
AUTOROTATE = 26, // Autonomous autorotation
AUTO_RTL = 27, // Auto RTL, this is not a true mode, AUTO will report as this mode if entered to perform a DO_LAND_START Landing sequence
TURTLE = 28, // Flip over after crash
// Mode number 127 reserved for the "drone show mode" in the Skybrush
// fork at https://github.com/skybrush-io/ardupilot
};
// constructor
Mode(void);
// do not allow copying
CLASS_NO_COPY(Mode);
// returns a unique number specific to this mode
virtual Number mode_number() const = 0;
// child classes should override these methods
virtual bool init(bool ignore_checks) {
return true;
}
virtual void exit() {};
virtual void run() = 0;
virtual bool requires_GPS() const = 0;
virtual bool has_manual_throttle() const = 0;
virtual bool allows_arming(AP_Arming::Method method) const = 0;
virtual bool is_autopilot() const { return false; }
virtual bool has_user_takeoff(bool must_navigate) const { return false; }
virtual bool in_guided_mode() const { return false; }
virtual bool logs_attitude() const { return false; }
virtual bool allows_save_trim() const { return false; }
virtual bool allows_autotune() const { return false; }
virtual bool allows_flip() const { return false; }
// return a string for this flightmode
virtual const char *name() const = 0;
virtual const char *name4() const = 0;
bool do_user_takeoff(float takeoff_alt_cm, bool must_navigate);
virtual bool is_taking_off() const;
static void takeoff_stop() { takeoff.stop(); }
virtual bool is_landing() const { return false; }
// mode requires terrain to be present to be functional
virtual bool requires_terrain_failsafe() const { return false; }
// functions for reporting to GCS
virtual bool get_wp(Location &loc) const { return false; };
virtual int32_t wp_bearing() const { return 0; }
virtual uint32_t wp_distance() const { return 0; }
virtual float crosstrack_error() const { return 0.0f;}
// functions to support MAV_CMD_DO_CHANGE_SPEED
virtual bool set_speed_xy(float speed_xy_cms) {return false;}
virtual bool set_speed_up(float speed_xy_cms) {return false;}
virtual bool set_speed_down(float speed_xy_cms) {return false;}
int32_t get_alt_above_ground_cm(void);
// pilot input processing
void get_pilot_desired_lean_angles(float &roll_out_cd, float &pitch_out_cd, float angle_max_cd, float angle_limit_cd) const;
Vector2f get_pilot_desired_velocity(float vel_max) const;
float get_pilot_desired_yaw_rate(float yaw_in);
float get_pilot_desired_throttle() const;
// returns climb target_rate reduced to avoid obstacles and
// altitude fence
float get_avoidance_adjusted_climbrate(float target_rate);
const Vector3f& get_vel_desired_cms() {
// note that position control isn't used in every mode, so
// this may return bogus data:
return pos_control->get_vel_desired_cms();
}
// send output to the motors, can be overridden by subclasses
virtual void output_to_motors();
// returns true if pilot's yaw input should be used to adjust vehicle's heading
virtual bool use_pilot_yaw() const {return true; }
// pause and resume a mode
virtual bool pause() { return false; };
virtual bool resume() { return false; };
protected:
// helper functions
bool is_disarmed_or_landed() const;
void zero_throttle_and_relax_ac(bool spool_up = false);
void zero_throttle_and_hold_attitude();
void make_safe_ground_handling(bool force_throttle_unlimited = false);
// functions to control normal landing. pause_descent is true if vehicle should not descend
void land_run_horizontal_control();
void land_run_vertical_control(bool pause_descent = false);
void land_run_horiz_and_vert_control(bool pause_descent = false) {
land_run_horizontal_control();
land_run_vertical_control(pause_descent);
}
// run normal or precision landing (if enabled)
// pause_descent is true if vehicle should not descend
void land_run_normal_or_precland(bool pause_descent = false);
#if PRECISION_LANDING == ENABLED
// Go towards a position commanded by prec land state machine in order to retry landing
// The passed in location is expected to be NED and in meters
void precland_retry_position(const Vector3f &retry_pos);
// Run precland statemachine. This function should be called from any mode that wants to do precision landing.
// This handles everything from prec landing, to prec landing failures, to retries and failsafe measures
void precland_run();
#endif
// return expected input throttle setting to hover:
virtual float throttle_hover() const;
// Alt_Hold based flight mode states used in Alt_Hold, Loiter, and Sport
enum AltHoldModeState {
AltHold_MotorStopped,
AltHold_Takeoff,
AltHold_Landed_Ground_Idle,
AltHold_Landed_Pre_Takeoff,
AltHold_Flying
};
AltHoldModeState get_alt_hold_state(float target_climb_rate_cms);
// convenience references to avoid code churn in conversion:
Parameters &g;
ParametersG2 &g2;
AC_WPNav *&wp_nav;
AC_Loiter *&loiter_nav;
AC_PosControl *&pos_control;
AP_InertialNav &inertial_nav;
AP_AHRS &ahrs;
AC_AttitudeControl_t *&attitude_control;
MOTOR_CLASS *&motors;
RC_Channel *&channel_roll;
RC_Channel *&channel_pitch;
RC_Channel *&channel_throttle;
RC_Channel *&channel_yaw;
float &G_Dt;
// note that we support two entirely different automatic takeoffs:
// "user-takeoff", which is available in modes such as ALT_HOLD
// (see has_user_takeoff method). "user-takeoff" is a simple
// reach-altitude-based-on-pilot-input-or-parameter routine.
// "auto-takeoff" is used by both Guided and Auto, and is
// basically waypoint navigation with pilot yaw permitted.
// user-takeoff support; takeoff state is shared across all mode instances
class _TakeOff {
public:
void start(float alt_cm);
void stop();
void do_pilot_takeoff(float& pilot_climb_rate);
bool triggered(float target_climb_rate) const;
bool running() const { return _running; }
private:
bool _running;
float take_off_start_alt;
float take_off_complete_alt;
};
static _TakeOff takeoff;
virtual bool do_user_takeoff_start(float takeoff_alt_cm);
// method shared by both Guided and Auto for takeoff.
// position controller controls vehicle but the user can control the yaw.
void auto_takeoff_run();
void auto_takeoff_start(float complete_alt_cm, bool terrain_alt);
bool auto_takeoff_get_position(Vector3p& completion_pos);
// altitude above-ekf-origin below which auto takeoff does not control horizontal position
static bool auto_takeoff_no_nav_active;
static float auto_takeoff_no_nav_alt_cm;
// auto takeoff variables
static float auto_takeoff_start_alt_cm; // start altitude expressed as cm above ekf origin
static float auto_takeoff_complete_alt_cm; // completion altitude expressed in cm above ekf origin or above terrain (depending upon auto_takeoff_terrain_alt)
static bool auto_takeoff_terrain_alt; // true if altitudes are above terrain
static bool auto_takeoff_complete; // true when takeoff is complete
static Vector3p auto_takeoff_complete_pos; // target takeoff position as offset from ekf origin in cm
public:
// Navigation Yaw control
class AutoYaw {
public:
// Autopilot Yaw Mode enumeration
enum class Mode {
HOLD = 0, // hold zero yaw rate
LOOK_AT_NEXT_WP = 1, // point towards next waypoint (no pilot input accepted)
ROI = 2, // point towards a location held in roi (no pilot input accepted)
FIXED = 3, // point towards a particular angle (no pilot input accepted)
LOOK_AHEAD = 4, // point in the direction the copter is moving
RESETTOARMEDYAW = 5, // point towards heading at time motors were armed
ANGLE_RATE = 6, // turn at a specified rate from a starting angle
RATE = 7, // turn at a specified rate (held in auto_yaw_rate)
CIRCLE = 8, // use AC_Circle's provided yaw (used during Loiter-Turns commands)
PILOT_RATE = 9, // target rate from pilot stick
};
// mode(): current method of determining desired yaw:
Mode mode() const { return _mode; }
void set_mode_to_default(bool rtl);
void set_mode(Mode new_mode);
Mode default_mode(bool rtl) const;
void set_rate(float new_rate_cds);
// set_roi(...): set a "look at" location:
void set_roi(const Location &roi_location);
void set_fixed_yaw(float angle_deg,
float turn_rate_dps,
int8_t direction,
bool relative_angle);
void set_yaw_angle_rate(float yaw_angle_d, float yaw_rate_ds);
bool reached_fixed_yaw_target();
AC_AttitudeControl::HeadingCommand get_heading();
private:
// yaw(): main product of AutoYaw; the heading:
float yaw();
// rate_cds(): desired yaw rate in centidegrees/second:
float rate_cds() const;
float look_ahead_yaw();
float roi_yaw() const;
// auto flight mode's yaw mode
Mode _mode = Mode::LOOK_AT_NEXT_WP;
// Yaw will point at this location if mode is set to Mode::ROI
Vector3f roi;
// yaw used for YAW_FIXED yaw_mode
float _fixed_yaw_offset_cd;
// Deg/s we should turn
float _fixed_yaw_slewrate_cds;
// time of the last yaw update
uint32_t _last_update_ms;
// heading when in yaw_look_ahead_yaw
float _look_ahead_yaw;
// turn rate (in cds) when auto_yaw_mode is set to AUTO_YAW_RATE
float _yaw_angle_cd;
float _yaw_rate_cds;
float _pilot_yaw_rate_cds;
};
static AutoYaw auto_yaw;
// pass-through functions to reduce code churn on conversion;
// these are candidates for moving into the Mode base
// class.
float get_pilot_desired_climb_rate(float throttle_control);
float get_non_takeoff_throttle(void);
void update_simple_mode(void);
bool set_mode(Mode::Number mode, ModeReason reason);
void set_land_complete(bool b);
GCS_Copter &gcs();
uint16_t get_pilot_speed_dn(void);
// end pass-through functions
};
#if MODE_ACRO_ENABLED == ENABLED
class ModeAcro : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::ACRO; }
enum class Trainer {
OFF = 0,
LEVELING = 1,
LIMITED = 2,
};
enum class AcroOptions {
AIR_MODE = 1 << 0,
RATE_LOOP_ONLY = 1 << 1,
};
virtual void run() override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return true; }
bool allows_arming(AP_Arming::Method method) const override { return true; };
bool is_autopilot() const override { return false; }
bool init(bool ignore_checks) override;
void exit() override;
// whether an air-mode aux switch has been toggled
void air_mode_aux_changed();
bool allows_save_trim() const override { return true; }
bool allows_flip() const override { return true; }
protected:
const char *name() const override { return "ACRO"; }
const char *name4() const override { return "ACRO"; }
// get_pilot_desired_angle_rates - transform pilot's normalised roll pitch and yaw input into a desired lean angle rates
// inputs are -1 to 1 and the function returns desired angle rates in centi-degrees-per-second
void get_pilot_desired_angle_rates(float roll_in, float pitch_in, float yaw_in, float &roll_out, float &pitch_out, float &yaw_out);
float throttle_hover() const override;
private:
bool disable_air_mode_reset;
};
#endif
#if FRAME_CONFIG == HELI_FRAME
class ModeAcro_Heli : public ModeAcro {
public:
// inherit constructor
using ModeAcro::Mode;
bool init(bool ignore_checks) override;
void run() override;
void virtual_flybar( float &roll_out, float &pitch_out, float &yaw_out, float pitch_leak, float roll_leak);
protected:
private:
};
#endif
class ModeAltHold : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::ALT_HOLD; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return true; };
bool is_autopilot() const override { return false; }
bool has_user_takeoff(bool must_navigate) const override {
return !must_navigate;
}
bool allows_autotune() const override { return true; }
bool allows_flip() const override { return true; }
protected:
const char *name() const override { return "ALT_HOLD"; }
const char *name4() const override { return "ALTH"; }
private:
};
class ModeAuto : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return auto_RTL? Number::AUTO_RTL : Number::AUTO; }
bool init(bool ignore_checks) override;
void exit() override;
void run() override;
bool requires_GPS() const override;
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override;
bool is_autopilot() const override { return true; }
bool in_guided_mode() const override { return _mode == SubMode::NAVGUIDED || _mode == SubMode::NAV_SCRIPT_TIME; }
// Auto modes
enum class SubMode : uint8_t {
TAKEOFF,
WP,
LAND,
RTL,
CIRCLE_MOVE_TO_EDGE,
CIRCLE,
NAVGUIDED,
LOITER,
LOITER_TO_ALT,
NAV_PAYLOAD_PLACE,
NAV_SCRIPT_TIME,
NAV_ATTITUDE_TIME,
};
// set submode. returns true on success, false on failure
void set_submode(SubMode new_submode);
// pause continue in auto mode
bool pause() override;
bool resume() override;
bool loiter_start();
void rtl_start();
void takeoff_start(const Location& dest_loc);
void wp_start(const Location& dest_loc);
void land_start();
void circle_movetoedge_start(const Location &circle_center, float radius_m);
void circle_start();
void nav_guided_start();
bool is_landing() const override;
bool is_taking_off() const override;
bool use_pilot_yaw() const override;
bool set_speed_xy(float speed_xy_cms) override;
bool set_speed_up(float speed_up_cms) override;
bool set_speed_down(float speed_down_cms) override;
bool requires_terrain_failsafe() const override { return true; }
// return true if this flight mode supports user takeoff
// must_nagivate is true if mode must also control horizontal position
virtual bool has_user_takeoff(bool must_navigate) const override { return false; }
void payload_place_start();
// for GCS_MAVLink to call:
bool do_guided(const AP_Mission::Mission_Command& cmd);
// Go straight to landing sequence via DO_LAND_START, if succeeds pretend to be Auto RTL mode
bool jump_to_landing_sequence_auto_RTL(ModeReason reason);
// lua accessors for nav script time support
bool nav_script_time(uint16_t &id, uint8_t &cmd, float &arg1, float &arg2, int16_t &arg3, int16_t &arg4);
void nav_script_time_done(uint16_t id);
AP_Mission mission{
FUNCTOR_BIND_MEMBER(&ModeAuto::start_command, bool, const AP_Mission::Mission_Command &),
FUNCTOR_BIND_MEMBER(&ModeAuto::verify_command, bool, const AP_Mission::Mission_Command &),
FUNCTOR_BIND_MEMBER(&ModeAuto::exit_mission, void)};
// Mission change detector
AP_Mission_ChangeDetector mis_change_detector;
protected:
const char *name() const override { return auto_RTL? "AUTO RTL" : "AUTO"; }
const char *name4() const override { return auto_RTL? "ARTL" : "AUTO"; }
uint32_t wp_distance() const override;
int32_t wp_bearing() const override;
float crosstrack_error() const override { return wp_nav->crosstrack_error();}
bool get_wp(Location &loc) const override;
private:
enum class Options : int32_t {
AllowArming = (1 << 0U),
AllowTakeOffWithoutRaisingThrottle = (1 << 1U),
IgnorePilotYaw = (1 << 2U),
};
bool start_command(const AP_Mission::Mission_Command& cmd);
bool verify_command(const AP_Mission::Mission_Command& cmd);
void exit_mission();
bool check_for_mission_change(); // detect external changes to mission
void takeoff_run();
void wp_run();
void land_run();
void rtl_run();
void circle_run();
void nav_guided_run();
void loiter_run();
void loiter_to_alt_run();
void nav_attitude_time_run();
Location loc_from_cmd(const AP_Mission::Mission_Command& cmd, const Location& default_loc) const;
void payload_place_run();
bool payload_place_run_should_run();
void payload_place_run_hover();
void payload_place_run_descend();
void payload_place_run_release();
SubMode _mode = SubMode::TAKEOFF; // controls which auto controller is run
bool shift_alt_to_current_alt(Location& target_loc) const;
void do_takeoff(const AP_Mission::Mission_Command& cmd);
void do_nav_wp(const AP_Mission::Mission_Command& cmd);
bool set_next_wp(const AP_Mission::Mission_Command& current_cmd, const Location &default_loc);
void do_land(const AP_Mission::Mission_Command& cmd);
void do_loiter_unlimited(const AP_Mission::Mission_Command& cmd);
void do_circle(const AP_Mission::Mission_Command& cmd);
void do_loiter_time(const AP_Mission::Mission_Command& cmd);
void do_loiter_to_alt(const AP_Mission::Mission_Command& cmd);
void do_spline_wp(const AP_Mission::Mission_Command& cmd);
void get_spline_from_cmd(const AP_Mission::Mission_Command& cmd, const Location& default_loc, Location& dest_loc, Location& next_dest_loc, bool& next_dest_loc_is_spline);
#if NAV_GUIDED == ENABLED
void do_nav_guided_enable(const AP_Mission::Mission_Command& cmd);
void do_guided_limits(const AP_Mission::Mission_Command& cmd);
#endif
void do_nav_delay(const AP_Mission::Mission_Command& cmd);
void do_wait_delay(const AP_Mission::Mission_Command& cmd);
void do_within_distance(const AP_Mission::Mission_Command& cmd);
void do_yaw(const AP_Mission::Mission_Command& cmd);
void do_change_speed(const AP_Mission::Mission_Command& cmd);
void do_set_home(const AP_Mission::Mission_Command& cmd);
void do_roi(const AP_Mission::Mission_Command& cmd);
void do_mount_control(const AP_Mission::Mission_Command& cmd);
#if PARACHUTE == ENABLED
void do_parachute(const AP_Mission::Mission_Command& cmd);
#endif
#if WINCH_ENABLED == ENABLED
void do_winch(const AP_Mission::Mission_Command& cmd);
#endif
void do_payload_place(const AP_Mission::Mission_Command& cmd);
void do_RTL(void);
#if AP_SCRIPTING_ENABLED
void do_nav_script_time(const AP_Mission::Mission_Command& cmd);
#endif
void do_nav_attitude_time(const AP_Mission::Mission_Command& cmd);
bool verify_takeoff();
bool verify_land();
bool verify_payload_place();
bool verify_loiter_unlimited();
bool verify_loiter_time(const AP_Mission::Mission_Command& cmd);
bool verify_loiter_to_alt() const;
bool verify_RTL();
bool verify_wait_delay();
bool verify_within_distance();
bool verify_yaw();
bool verify_nav_wp(const AP_Mission::Mission_Command& cmd);
bool verify_circle(const AP_Mission::Mission_Command& cmd);
bool verify_spline_wp(const AP_Mission::Mission_Command& cmd);
#if NAV_GUIDED == ENABLED
bool verify_nav_guided_enable(const AP_Mission::Mission_Command& cmd);
#endif
bool verify_nav_delay(const AP_Mission::Mission_Command& cmd);
#if AP_SCRIPTING_ENABLED
bool verify_nav_script_time();
#endif
bool verify_nav_attitude_time(const AP_Mission::Mission_Command& cmd);
// Loiter control
uint16_t loiter_time_max; // How long we should stay in Loiter Mode for mission scripting (time in seconds)
uint32_t loiter_time; // How long have we been loitering - The start time in millis
struct {
bool reached_destination_xy : 1;
bool loiter_start_done : 1;
bool reached_alt : 1;
float alt_error_cm;
int32_t alt;
} loiter_to_alt;
// Delay the next navigation command
uint32_t nav_delay_time_max_ms; // used for delaying the navigation commands (eg land,takeoff etc.)
uint32_t nav_delay_time_start_ms;
// Delay Mission Scripting Command
int32_t condition_value; // used in condition commands (eg delay, change alt, etc.)
uint32_t condition_start;
enum class State {
FlyToLocation = 0,
Descending = 1
};
State state = State::FlyToLocation;
struct {
PayloadPlaceStateType state = PayloadPlaceStateType_Calibrating_Hover_Start; // records state of place (descending, releasing, released, ...)
uint32_t hover_start_timestamp; // milliseconds
float hover_throttle_level;
uint32_t descend_start_timestamp; // milliseconds
uint32_t place_start_timestamp; // milliseconds
float descend_throttle_level;
float descend_start_altitude;
float descend_max; // centimetres
} nav_payload_place;
bool waiting_to_start; // true if waiting for vehicle to be armed or EKF origin before starting mission
// True if we have entered AUTO to perform a DO_LAND_START landing sequence and we should report as AUTO RTL mode
bool auto_RTL;
#if AP_SCRIPTING_ENABLED
// nav_script_time command variables
struct {
bool done; // true once lua script indicates it has completed
uint16_t id; // unique id to avoid race conditions between commands and lua scripts
uint32_t start_ms; // system time nav_script_time command was received (used for timeout)
uint8_t command; // command number provided by mission command
uint8_t timeout_s; // timeout (in seconds) provided by mission command
float arg1; // 1st argument provided by mission command
float arg2; // 2nd argument provided by mission command
int16_t arg3; // 3rd argument provided by mission command
int16_t arg4; // 4th argument provided by mission command
} nav_scripting;
#endif
// nav attitude time command variables
struct {
int16_t roll_deg; // target roll angle in degrees. provided by mission command
int8_t pitch_deg; // target pitch angle in degrees. provided by mission command
int16_t yaw_deg; // target yaw angle in degrees. provided by mission command
float climb_rate; // climb rate in m/s. provided by mission command
uint32_t start_ms; // system time that nav attitude time command was received (used for timeout)
} nav_attitude_time;
};
#if AUTOTUNE_ENABLED == ENABLED
/*
wrapper class for AC_AutoTune
*/
#if FRAME_CONFIG == HELI_FRAME
class AutoTune : public AC_AutoTune_Heli
#else
class AutoTune : public AC_AutoTune_Multi
#endif
{
public:
bool init() override;
void run() override;
protected:
bool position_ok() override;
float get_pilot_desired_climb_rate_cms(void) const override;
void get_pilot_desired_rp_yrate_cd(float &roll_cd, float &pitch_cd, float &yaw_rate_cds) override;
void init_z_limits() override;
void log_pids() override;
};
class ModeAutoTune : public Mode {
// ParametersG2 sets a pointer within our autotune object:
friend class ParametersG2;
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::AUTOTUNE; }
bool init(bool ignore_checks) override;
void exit() override;
void run() override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return false; }
bool is_autopilot() const override { return false; }
void save_tuning_gains();
void reset();
protected:
const char *name() const override { return "AUTOTUNE"; }
const char *name4() const override { return "ATUN"; }
private:
AutoTune autotune;
};
#endif
class ModeBrake : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::BRAKE; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return false; };
bool is_autopilot() const override { return false; }
void timeout_to_loiter_ms(uint32_t timeout_ms);
protected:
const char *name() const override { return "BRAKE"; }
const char *name4() const override { return "BRAK"; }
private:
uint32_t _timeout_start;
uint32_t _timeout_ms;
};
class ModeCircle : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::CIRCLE; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return false; };
bool is_autopilot() const override { return true; }
protected:
const char *name() const override { return "CIRCLE"; }
const char *name4() const override { return "CIRC"; }
uint32_t wp_distance() const override;
int32_t wp_bearing() const override;
private:
// Circle
bool speed_changing = false; // true when the roll stick is being held to facilitate stopping at 0 rate
};
class ModeDrift : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::DRIFT; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return true; };
bool is_autopilot() const override { return false; }
protected:
const char *name() const override { return "DRIFT"; }
const char *name4() const override { return "DRIF"; }
private:
float get_throttle_assist(float velz, float pilot_throttle_scaled);
};
class ModeFlip : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::FLIP; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return false; };
bool is_autopilot() const override { return false; }
protected:
const char *name() const override { return "FLIP"; }
const char *name4() const override { return "FLIP"; }
private:
// Flip
Vector3f orig_attitude; // original vehicle attitude before flip
enum class FlipState : uint8_t {
Start,
Roll,
Pitch_A,
Pitch_B,
Recover,
Abandon
};
FlipState _state; // current state of flip
Mode::Number orig_control_mode; // flight mode when flip was initated
uint32_t start_time_ms; // time since flip began
int8_t roll_dir; // roll direction (-1 = roll left, 1 = roll right)
int8_t pitch_dir; // pitch direction (-1 = pitch forward, 1 = pitch back)
};
#if MODE_FLOWHOLD_ENABLED == ENABLED
/*
class to support FLOWHOLD mode, which is a position hold mode using
optical flow directly, avoiding the need for a rangefinder
*/
class ModeFlowHold : public Mode {
public:
// need a constructor for parameters
ModeFlowHold(void);
Number mode_number() const override { return Number::FLOWHOLD; }
bool init(bool ignore_checks) override;
void run(void) override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return true; };
bool is_autopilot() const override { return false; }
bool has_user_takeoff(bool must_navigate) const override {
return !must_navigate;
}
bool allows_flip() const override { return true; }
static const struct AP_Param::GroupInfo var_info[];
protected:
const char *name() const override { return "FLOWHOLD"; }
const char *name4() const override { return "FHLD"; }
private:
// FlowHold states
enum FlowHoldModeState {
FlowHold_MotorStopped,
FlowHold_Takeoff,
FlowHold_Flying,
FlowHold_Landed
};
// calculate attitude from flow data
void flow_to_angle(Vector2f &bf_angle);
LowPassFilterVector2f flow_filter;
bool flowhold_init(bool ignore_checks);
void flowhold_run();
void flowhold_flow_to_angle(Vector2f &angle, bool stick_input);
void update_height_estimate(void);
// minimum assumed height
const float height_min = 0.1f;
// maximum scaling height
const float height_max = 3.0f;
AP_Float flow_max;
AC_PI_2D flow_pi_xy{0.2f, 0.3f, 3000, 5, 0.0025f};
AP_Float flow_filter_hz;
AP_Int8 flow_min_quality;
AP_Int8 brake_rate_dps;
float quality_filtered;
uint8_t log_counter;
bool limited;
Vector2f xy_I;
// accumulated INS delta velocity in north-east form since last flow update
Vector2f delta_velocity_ne;
// last flow rate in radians/sec in north-east axis
Vector2f last_flow_rate_rps;
// timestamp of last flow data
uint32_t last_flow_ms;
float last_ins_height;
float height_offset;
// are we braking after pilot input?
bool braking;
// last time there was significant stick input
uint32_t last_stick_input_ms;
};
#endif // MODE_FLOWHOLD_ENABLED
class ModeGuided : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::GUIDED; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override;
bool is_autopilot() const override { return true; }
bool has_user_takeoff(bool must_navigate) const override { return true; }
bool in_guided_mode() const override { return true; }
bool requires_terrain_failsafe() const override { return true; }
// Sets guided's angular target submode: Using a rotation quaternion, angular velocity, and climbrate or thrust (depends on user option)
// attitude_quat: IF zero: ang_vel (angular velocity) must be provided even if all zeroes
// IF non-zero: attitude_control is performed using both the attitude quaternion and angular velocity
// ang_vel: angular velocity (rad/s)
// climb_rate_cms_or_thrust: represents either the climb_rate (cm/s) or thrust scaled from [0, 1], unitless
// use_thrust: IF true: climb_rate_cms_or_thrust represents thrust
// IF false: climb_rate_cms_or_thrust represents climb_rate (cm/s)
void set_angle(const Quaternion &attitude_quat, const Vector3f &ang_vel, float climb_rate_cms_or_thrust, bool use_thrust);
bool set_destination(const Vector3f& destination, bool use_yaw = false, float yaw_cd = 0.0, bool use_yaw_rate = false, float yaw_rate_cds = 0.0, bool yaw_relative = false, bool terrain_alt = false);
bool set_destination(const Location& dest_loc, bool use_yaw = false, float yaw_cd = 0.0, bool use_yaw_rate = false, float yaw_rate_cds = 0.0, bool yaw_relative = false);
bool get_wp(Location &loc) const override;
void set_accel(const Vector3f& acceleration, bool use_yaw = false, float yaw_cd = 0.0, bool use_yaw_rate = false, float yaw_rate_cds = 0.0, bool yaw_relative = false, bool log_request = true);
void set_velocity(const Vector3f& velocity, bool use_yaw = false, float yaw_cd = 0.0, bool use_yaw_rate = false, float yaw_rate_cds = 0.0, bool yaw_relative = false, bool log_request = true);
void set_velaccel(const Vector3f& velocity, const Vector3f& acceleration, bool use_yaw = false, float yaw_cd = 0.0, bool use_yaw_rate = false, float yaw_rate_cds = 0.0, bool yaw_relative = false, bool log_request = true);
bool set_destination_posvel(const Vector3f& destination, const Vector3f& velocity, bool use_yaw = false, float yaw_cd = 0.0, bool use_yaw_rate = false, float yaw_rate_cds = 0.0, bool yaw_relative = false);
bool set_destination_posvelaccel(const Vector3f& destination, const Vector3f& velocity, const Vector3f& acceleration, bool use_yaw = false, float yaw_cd = 0.0, bool use_yaw_rate = false, float yaw_rate_cds = 0.0, bool yaw_relative = false);
// get position, velocity and acceleration targets
const Vector3p& get_target_pos() const;
const Vector3f& get_target_vel() const;
const Vector3f& get_target_accel() const;
// returns true if GUIDED_OPTIONS param suggests SET_ATTITUDE_TARGET's "thrust" field should be interpreted as thrust instead of climb rate
bool set_attitude_target_provides_thrust() const;
bool stabilizing_pos_xy() const;
bool stabilizing_vel_xy() const;
bool use_wpnav_for_position_control() const;
void limit_clear();
void limit_init_time_and_pos();
void limit_set(uint32_t timeout_ms, float alt_min_cm, float alt_max_cm, float horiz_max_cm);
bool limit_check();
bool is_taking_off() const override;
bool set_speed_xy(float speed_xy_cms) override;
bool set_speed_up(float speed_up_cms) override;
bool set_speed_down(float speed_down_cms) override;
// initialises position controller to implement take-off
// takeoff_alt_cm is interpreted as alt-above-home (in cm) or alt-above-terrain if a rangefinder is available
bool do_user_takeoff_start(float takeoff_alt_cm) override;
enum class SubMode {
TakeOff,
WP,
Pos,
PosVelAccel,
VelAccel,
Accel,
Angle,
};
SubMode submode() const { return guided_mode; }
void angle_control_start();
void angle_control_run();
// return guided mode timeout in milliseconds. Only used for velocity, acceleration, angle control, and angular rate control
uint32_t get_timeout_ms() const;
bool use_pilot_yaw() const override;
// pause continue in guided mode
bool pause() override;
bool resume() override;
protected:
const char *name() const override { return "GUIDED"; }
const char *name4() const override { return "GUID"; }
uint32_t wp_distance() const override;
int32_t wp_bearing() const override;
float crosstrack_error() const override;
private:
// enum for GUID_OPTIONS parameter
enum class Options : int32_t {
AllowArmingFromTX = (1U << 0),
// this bit is still available, pilot yaw was mapped to bit 2 for symmetry with auto
IgnorePilotYaw = (1U << 2),
SetAttitudeTarget_ThrustAsThrust = (1U << 3),
DoNotStabilizePositionXY = (1U << 4),
DoNotStabilizeVelocityXY = (1U << 5),
WPNavUsedForPosControl = (1U << 6),
};
// wp controller
void wp_control_start();
void wp_control_run();
void pva_control_start();
void pos_control_start();
void accel_control_start();
void velaccel_control_start();
void posvelaccel_control_start();
void takeoff_run();
void pos_control_run();
void accel_control_run();
void velaccel_control_run();
void pause_control_run();
void posvelaccel_control_run();
void set_yaw_state(bool use_yaw, float yaw_cd, bool use_yaw_rate, float yaw_rate_cds, bool relative_angle);
// controls which controller is run (pos or vel):
SubMode guided_mode = SubMode::TakeOff;
bool send_notification; // used to send one time notification to ground station
bool takeoff_complete; // true once takeoff has completed (used to trigger retracting of landing gear)
// guided mode is paused or not
bool _paused;
};
class ModeGuidedNoGPS : public ModeGuided {
public:
// inherit constructor
using ModeGuided::Mode;
Number mode_number() const override { return Number::GUIDED_NOGPS; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return false; }
bool is_autopilot() const override { return true; }
protected:
const char *name() const override { return "GUIDED_NOGPS"; }
const char *name4() const override { return "GNGP"; }
private:
};
class ModeLand : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::LAND; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return false; };
bool is_autopilot() const override { return true; }
bool is_landing() const override { return true; };
void do_not_use_GPS();
// returns true if LAND mode is trying to control X/Y position
bool controlling_position() const { return control_position; }
void set_land_pause(bool new_value) { land_pause = new_value; }
protected:
const char *name() const override { return "LAND"; }
const char *name4() const override { return "LAND"; }
private:
void gps_run();
void nogps_run();
bool control_position; // true if we are using an external reference to control position
uint32_t land_start_time;
bool land_pause;
};
class ModeLoiter : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::LOITER; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return true; };
bool is_autopilot() const override { return false; }
bool has_user_takeoff(bool must_navigate) const override { return true; }
bool allows_autotune() const override { return true; }
#if PRECISION_LANDING == ENABLED
void set_precision_loiter_enabled(bool value) { _precision_loiter_enabled = value; }
#endif
protected:
const char *name() const override { return "LOITER"; }
const char *name4() const override { return "LOIT"; }
uint32_t wp_distance() const override;
int32_t wp_bearing() const override;
float crosstrack_error() const override { return pos_control->crosstrack_error();}
#if PRECISION_LANDING == ENABLED
bool do_precision_loiter();
void precision_loiter_xy();
#endif
private:
#if PRECISION_LANDING == ENABLED
bool _precision_loiter_enabled;
bool _precision_loiter_active; // true if user has switched on prec loiter
#endif
};
class ModePosHold : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::POSHOLD; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return true; };
bool is_autopilot() const override { return false; }
bool has_user_takeoff(bool must_navigate) const override { return true; }
bool allows_autotune() const override { return true; }
protected:
const char *name() const override { return "POSHOLD"; }
const char *name4() const override { return "PHLD"; }
private:
void update_pilot_lean_angle(float &lean_angle_filtered, float &lean_angle_raw);
float mix_controls(float mix_ratio, float first_control, float second_control);
void update_brake_angle_from_velocity(float &brake_angle, float velocity);
void init_wind_comp_estimate();
void update_wind_comp_estimate();
void get_wind_comp_lean_angles(float &roll_angle, float &pitch_angle);
void roll_controller_to_pilot_override();
void pitch_controller_to_pilot_override();
enum class RPMode {
PILOT_OVERRIDE=0, // pilot is controlling this axis (i.e. roll or pitch)
BRAKE, // this axis is braking towards zero
BRAKE_READY_TO_LOITER, // this axis has completed braking and is ready to enter loiter mode (both modes must be this value before moving to next stage)
BRAKE_TO_LOITER, // both vehicle's axis (roll and pitch) are transitioning from braking to loiter mode (braking and loiter controls are mixed)
LOITER, // both vehicle axis are holding position
CONTROLLER_TO_PILOT_OVERRIDE // pilot has input controls on this axis and this axis is transitioning to pilot override (other axis will transition to brake if no pilot input)
};
RPMode roll_mode;
RPMode pitch_mode;
// pilot input related variables
float pilot_roll; // pilot requested roll angle (filtered to slow returns to zero)
float pilot_pitch; // pilot requested roll angle (filtered to slow returns to zero)
// braking related variables
struct {
uint8_t time_updated_roll : 1; // true once we have re-estimated the braking time. This is done once as the vehicle begins to flatten out after braking
uint8_t time_updated_pitch : 1; // true once we have re-estimated the braking time. This is done once as the vehicle begins to flatten out after braking
float gain; // gain used during conversion of vehicle's velocity to lean angle during braking (calculated from rate)
float roll; // target roll angle during braking periods
float pitch; // target pitch angle during braking periods
int16_t timeout_roll; // number of cycles allowed for the braking to complete, this timeout will be updated at half-braking
int16_t timeout_pitch; // number of cycles allowed for the braking to complete, this timeout will be updated at half-braking
float angle_max_roll; // maximum lean angle achieved during braking. Used to determine when the vehicle has begun to flatten out so that we can re-estimate the braking time
float angle_max_pitch; // maximum lean angle achieved during braking Used to determine when the vehicle has begun to flatten out so that we can re-estimate the braking time
int16_t to_loiter_timer; // cycles to mix brake and loiter controls in POSHOLD_TO_LOITER
} brake;
// loiter related variables
int16_t controller_to_pilot_timer_roll; // cycles to mix controller and pilot controls in POSHOLD_CONTROLLER_TO_PILOT
int16_t controller_to_pilot_timer_pitch; // cycles to mix controller and pilot controls in POSHOLD_CONTROLLER_TO_PILOT
float controller_final_roll; // final roll angle from controller as we exit brake or loiter mode (used for mixing with pilot input)
float controller_final_pitch; // final pitch angle from controller as we exit brake or loiter mode (used for mixing with pilot input)
// wind compensation related variables
Vector2f wind_comp_ef; // wind compensation in earth frame, filtered lean angles from position controller
float wind_comp_roll; // roll angle to compensate for wind
float wind_comp_pitch; // pitch angle to compensate for wind
uint16_t wind_comp_start_timer; // counter to delay start of wind compensation for a short time after loiter is engaged
int8_t wind_comp_timer; // counter to reduce wind comp roll/pitch lean angle calcs to 10hz
// final output
float roll; // final roll angle sent to attitude controller
float pitch; // final pitch angle sent to attitude controller
};
class ModeRTL : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::RTL; }
bool init(bool ignore_checks) override;
void run() override {
return run(true);
}
void run(bool disarm_on_land);
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return false; };
bool is_autopilot() const override { return true; }
bool requires_terrain_failsafe() const override { return true; }
// for reporting to GCS
bool get_wp(Location &loc) const override;
bool use_pilot_yaw() const override;
// RTL states
enum class SubMode : uint8_t {
STARTING,
INITIAL_CLIMB,
RETURN_HOME,
LOITER_AT_HOME,
FINAL_DESCENT,
LAND
};
SubMode state() { return _state; }
// this should probably not be exposed
bool state_complete() const { return _state_complete; }
virtual bool is_landing() const override;
void restart_without_terrain();
// enum for RTL_ALT_TYPE parameter
enum class RTLAltType {
RTL_ALTTYPE_RELATIVE = 0,
RTL_ALTTYPE_TERRAIN = 1
};
ModeRTL::RTLAltType get_alt_type() const;
protected:
const char *name() const override { return "RTL"; }
const char *name4() const override { return "RTL "; }
// for reporting to GCS
uint32_t wp_distance() const override;
int32_t wp_bearing() const override;
float crosstrack_error() const override { return wp_nav->crosstrack_error();}
void descent_start();
void descent_run();
void land_start();
void land_run(bool disarm_on_land);
void set_descent_target_alt(uint32_t alt) { rtl_path.descent_target.alt = alt; }
private:
void climb_start();
void return_start();
void climb_return_run();
void loiterathome_start();
void loiterathome_run();
void build_path();
void compute_return_target();
SubMode _state = SubMode::INITIAL_CLIMB; // records state of rtl (initial climb, returning home, etc)
bool _state_complete = false; // set to true if the current state is completed
struct {
// NEU w/ Z element alt-above-ekf-origin unless use_terrain is true in which case Z element is alt-above-terrain
Location origin_point;
Location climb_target;
Location return_target;
Location descent_target;
bool land;
} rtl_path;
// return target alt type
enum class ReturnTargetAltType {
RELATIVE = 0,
RANGEFINDER = 1,
TERRAINDATABASE = 2
};
// Loiter timer - Records how long we have been in loiter
uint32_t _loiter_start_time;
bool terrain_following_allowed;
// enum for RTL_OPTIONS parameter
enum class Options : int32_t {
// First pair of bits are still available, pilot yaw was mapped to bit 2 for symmetry with auto
IgnorePilotYaw = (1U << 2),
};
};
class ModeSmartRTL : public ModeRTL {
public:
// inherit constructor
using ModeRTL::Mode;
Number mode_number() const override { return Number::SMART_RTL; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return false; }
bool is_autopilot() const override { return true; }
void save_position();
void exit() override;
bool is_landing() const override;
bool use_pilot_yaw() const override;
// Safe RTL states
enum class SubMode : uint8_t {
WAIT_FOR_PATH_CLEANUP,
PATH_FOLLOW,
PRELAND_POSITION,
DESCEND,
LAND
};
protected:
const char *name() const override { return "SMARTRTL"; }
const char *name4() const override { return "SRTL"; }
// for reporting to GCS
bool get_wp(Location &loc) const override;
uint32_t wp_distance() const override;
int32_t wp_bearing() const override;
float crosstrack_error() const override { return wp_nav->crosstrack_error();}
private:
void wait_cleanup_run();
void path_follow_run();
void pre_land_position_run();
void land();
SubMode smart_rtl_state = SubMode::PATH_FOLLOW;
// keep track of how long we have failed to get another return
// point while following our path home. If we take too long we
// may choose to land the vehicle.
uint32_t path_follow_last_pop_fail_ms;
};
class ModeSport : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::SPORT; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return true; };
bool is_autopilot() const override { return false; }
bool has_user_takeoff(bool must_navigate) const override {
return !must_navigate;
}
protected:
const char *name() const override { return "SPORT"; }
const char *name4() const override { return "SPRT"; }
private:
};
class ModeStabilize : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::STABILIZE; }
virtual void run() override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return true; }
bool allows_arming(AP_Arming::Method method) const override { return true; };
bool is_autopilot() const override { return false; }
bool allows_save_trim() const override { return true; }
bool allows_autotune() const override { return true; }
bool allows_flip() const override { return true; }
protected:
const char *name() const override { return "STABILIZE"; }
const char *name4() const override { return "STAB"; }
private:
};
#if FRAME_CONFIG == HELI_FRAME
class ModeStabilize_Heli : public ModeStabilize {
public:
// inherit constructor
using ModeStabilize::Mode;
bool init(bool ignore_checks) override;
void run() override;
protected:
private:
};
#endif
class ModeSystemId : public Mode {
public:
ModeSystemId(void);
Number mode_number() const override { return Number::SYSTEMID; }
bool init(bool ignore_checks) override;
void run() override;
void exit() override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return true; }
bool allows_arming(AP_Arming::Method method) const override { return false; };
bool is_autopilot() const override { return false; }
bool logs_attitude() const override { return true; }
void set_magnitude(float input) { waveform_magnitude.set(input); }
static const struct AP_Param::GroupInfo var_info[];
Chirp chirp_input;
protected:
const char *name() const override { return "SYSTEMID"; }
const char *name4() const override { return "SYSI"; }
private:
void log_data() const;
enum class AxisType {
NONE = 0, // none
INPUT_ROLL = 1, // angle input roll axis is being excited
INPUT_PITCH = 2, // angle pitch axis is being excited
INPUT_YAW = 3, // angle yaw axis is being excited
RECOVER_ROLL = 4, // angle roll axis is being excited
RECOVER_PITCH = 5, // angle pitch axis is being excited
RECOVER_YAW = 6, // angle yaw axis is being excited
RATE_ROLL = 7, // rate roll axis is being excited
RATE_PITCH = 8, // rate pitch axis is being excited
RATE_YAW = 9, // rate yaw axis is being excited
MIX_ROLL = 10, // mixer roll axis is being excited
MIX_PITCH = 11, // mixer pitch axis is being excited
MIX_YAW = 12, // mixer pitch axis is being excited
MIX_THROTTLE = 13, // mixer throttle axis is being excited
};
AP_Int8 axis; // Controls which axis are being excited. Set to non-zero to display other parameters
AP_Float waveform_magnitude;// Magnitude of chirp waveform
AP_Float frequency_start; // Frequency at the start of the chirp
AP_Float frequency_stop; // Frequency at the end of the chirp
AP_Float time_fade_in; // Time to reach maximum amplitude of chirp
AP_Float time_record; // Time taken to complete the chirp waveform
AP_Float time_fade_out; // Time to reach zero amplitude after chirp finishes
bool att_bf_feedforward; // Setting of attitude_control->get_bf_feedforward
float waveform_time; // Time reference for waveform
float waveform_sample; // Current waveform sample
float waveform_freq_rads; // Instantaneous waveform frequency
float time_const_freq; // Time at constant frequency before chirp starts
int8_t log_subsample; // Subsample multiple for logging.
// System ID states
enum class SystemIDModeState {
SYSTEMID_STATE_STOPPED,
SYSTEMID_STATE_TESTING
} systemid_state;
};
class ModeThrow : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::THROW; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return true; };
bool is_autopilot() const override { return false; }
// Throw types
enum class ThrowType {
Upward = 0,
Drop = 1
};
enum class PreThrowMotorState {
STOPPED = 0,
RUNNING = 1,
};
protected:
const char *name() const override { return "THROW"; }
const char *name4() const override { return "THRW"; }
private:
bool throw_detected();
bool throw_position_good() const;
bool throw_height_good() const;
bool throw_attitude_good() const;
// Throw stages
enum ThrowModeStage {
Throw_Disarmed,
Throw_Detecting,
Throw_Wait_Throttle_Unlimited,
Throw_Uprighting,
Throw_HgtStabilise,
Throw_PosHold
};
ThrowModeStage stage = Throw_Disarmed;
ThrowModeStage prev_stage = Throw_Disarmed;
uint32_t last_log_ms;
bool nextmode_attempted;
uint32_t free_fall_start_ms; // system time free fall was detected
float free_fall_start_velz; // vertical velocity when free fall was detected
};
#if MODE_TURTLE_ENABLED == ENABLED
class ModeTurtle : public Mode {
public:
// inherit constructors
using Mode::Mode;
Number mode_number() const override { return Number::TURTLE; }
bool init(bool ignore_checks) override;
void run() override;
void exit() override;
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return true; }
bool allows_arming(AP_Arming::Method method) const override;
bool is_autopilot() const override { return false; }
void change_motor_direction(bool reverse);
void output_to_motors() override;
protected:
const char *name() const override { return "TURTLE"; }
const char *name4() const override { return "TRTL"; }
private:
void arm_motors();
void disarm_motors();
float motors_output;
Vector2f motors_input;
};
#endif
// modes below rely on Guided mode so must be declared at the end (instead of in alphabetical order)
class ModeAvoidADSB : public ModeGuided {
public:
// inherit constructor
using ModeGuided::Mode;
Number mode_number() const override { return Number::AVOID_ADSB; }
bool init(bool ignore_checks) override;
void run() override;
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return false; }
bool is_autopilot() const override { return true; }
bool set_velocity(const Vector3f& velocity_neu);
protected:
const char *name() const override { return "AVOID_ADSB"; }
const char *name4() const override { return "AVOI"; }
private:
};
class ModeFollow : public ModeGuided {
public:
// inherit constructor
using ModeGuided::Mode;
Number mode_number() const override { return Number::FOLLOW; }
bool init(bool ignore_checks) override;
void exit() override;
void run() override;
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return false; }
bool is_autopilot() const override { return true; }
protected:
const char *name() const override { return "FOLLOW"; }
const char *name4() const override { return "FOLL"; }
// for reporting to GCS
bool get_wp(Location &loc) const override;
uint32_t wp_distance() const override;
int32_t wp_bearing() const override;
uint32_t last_log_ms; // system time of last time desired velocity was logging
};
class ModeZigZag : public Mode {
public:
ModeZigZag(void);
// Inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::ZIGZAG; }
enum class Destination : uint8_t {
A, // Destination A
B, // Destination B
};
enum class Direction : uint8_t {
FORWARD, // moving forward from the yaw direction
RIGHT, // moving right from the yaw direction
BACKWARD, // moving backward from the yaw direction
LEFT, // moving left from the yaw direction
} zigzag_direction;
bool init(bool ignore_checks) override;
void exit() override;
void run() override;
// auto control methods. copter flies grid pattern
void run_auto();
void suspend_auto();
void init_auto();
bool requires_GPS() const override { return true; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return true; }
bool is_autopilot() const override { return true; }
// save current position as A or B. If both A and B have been saved move to the one specified
void save_or_move_to_destination(Destination ab_dest);
// return manual control to the pilot
void return_to_manual_control(bool maintain_target);
static const struct AP_Param::GroupInfo var_info[];
protected:
const char *name() const override { return "ZIGZAG"; }
const char *name4() const override { return "ZIGZ"; }
private:
void auto_control();
void manual_control();
bool reached_destination();
bool calculate_next_dest(Destination ab_dest, bool use_wpnav_alt, Vector3f& next_dest, bool& terrain_alt) const;
void spray(bool b);
bool calculate_side_dest(Vector3f& next_dest, bool& terrain_alt) const;
void move_to_side();
Vector2f dest_A; // in NEU frame in cm relative to ekf origin
Vector2f dest_B; // in NEU frame in cm relative to ekf origin
Vector3f current_dest; // current target destination (use for resume after suspending)
bool current_terr_alt;
// parameters
AP_Int8 _auto_enabled; // top level enable/disable control
#if SPRAYER_ENABLED == ENABLED
AP_Int8 _spray_enabled; // auto spray enable/disable
#endif
AP_Int8 _wp_delay; // delay for zigzag waypoint
AP_Float _side_dist; // sideways distance
AP_Int8 _direction; // sideways direction
AP_Int16 _line_num; // total number of lines
enum ZigZagState {
STORING_POINTS, // storing points A and B, pilot has manual control
AUTO, // after A and B defined, pilot toggle the switch from one side to the other, vehicle flies autonomously
MANUAL_REGAIN // pilot toggle the switch to middle position, has manual control
} stage;
enum AutoState {
MANUAL, // not in ZigZag Auto
AB_MOVING, // moving from A to B or from B to A
SIDEWAYS, // moving to sideways
} auto_stage;
uint32_t reach_wp_time_ms = 0; // time since vehicle reached destination (or zero if not yet reached)
Destination ab_dest_stored; // store the current destination
bool is_auto; // enable zigzag auto feature which is automate both AB and sideways
uint16_t line_count = 0; // current line number
int16_t line_num = 0; // target line number
bool is_suspended; // true if zigzag auto is suspended
};
#if MODE_AUTOROTATE_ENABLED == ENABLED
class ModeAutorotate : public Mode {
public:
// inherit constructor
using Mode::Mode;
Number mode_number() const override { return Number::AUTOROTATE; }
bool init(bool ignore_checks) override;
void run() override;
bool is_autopilot() const override { return true; }
bool requires_GPS() const override { return false; }
bool has_manual_throttle() const override { return false; }
bool allows_arming(AP_Arming::Method method) const override { return false; };
static const struct AP_Param::GroupInfo var_info[];
protected:
const char *name() const override { return "AUTOROTATE"; }
const char *name4() const override { return "AROT"; }
private:
// --- Internal variables ---
float _initial_rpm; // Head speed recorded at initiation of flight mode (RPM)
float _target_head_speed; // The terget head main rotor head speed. Normalised by main rotor set point
float _desired_v_z; // Desired vertical
int32_t _pitch_target; // Target pitch attitude to pass to attitude controller
uint32_t _entry_time_start_ms; // Time remaining until entry phase moves on to glide phase
float _hs_decay; // The head accerleration during the entry phase
float _bail_time; // Timer for exiting the bail out phase (s)
uint32_t _bail_time_start_ms; // Time at start of bail out
float _target_climb_rate_adjust;// Target vertical acceleration used during bail out phase
float _target_pitch_adjust; // Target pitch rate used during bail out phase
enum class Autorotation_Phase {
ENTRY,
SS_GLIDE,
FLARE,
TOUCH_DOWN,
BAIL_OUT } phase_switch;
enum class Navigation_Decision {
USER_CONTROL_STABILISED,
STRAIGHT_AHEAD,
INTO_WIND,
NEAREST_RALLY} nav_pos_switch;
// --- Internal flags ---
struct controller_flags {
bool entry_initial : 1;
bool ss_glide_initial : 1;
bool flare_initial : 1;
bool touch_down_initial : 1;
bool straight_ahead_initial : 1;
bool level_initial : 1;
bool break_initial : 1;
bool bail_out_initial : 1;
bool bad_rpm : 1;
} _flags;
struct message_flags {
bool bad_rpm : 1;
} _msg_flags;
//--- Internal functions ---
void warning_message(uint8_t message_n); //Handles output messages to the terminal
};
#endif
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