/// @file RC_Channel.h /// @brief RC_Channel manager, with EEPROM-backed storage of constants. #pragma once #include #include #include #define NUM_RC_CHANNELS 16 /// @class RC_Channel /// @brief Object managing one RC channel class RC_Channel { public: friend class SRV_Channels; friend class RC_Channels; // Constructor RC_Channel(void); enum ChannelType { RC_CHANNEL_TYPE_ANGLE = 0, RC_CHANNEL_TYPE_RANGE = 1, }; // setup the control preferences void set_range(uint16_t high); uint16_t get_range() const { return high_in; } void set_angle(uint16_t angle); bool get_reverse(void) const; void set_default_dead_zone(int16_t dzone); uint16_t get_dead_zone(void) const { return dead_zone; } // get the center stick position expressed as a control_in value int16_t get_control_mid() const; // read input from hal.rcin - create a control_in value bool update(void); void recompute_pwm_no_deadzone(); // calculate an angle given dead_zone and trim. This is used by the quadplane code // for hover throttle int16_t pwm_to_angle_dz_trim(uint16_t dead_zone, uint16_t trim) const; // return a normalised input for a channel, in range -1 to 1, // centered around the channel trim. Ignore deadzone. float norm_input() const; // return a normalised input for a channel, in range -1 to 1, // centered around the channel trim. Take into account the deadzone float norm_input_dz() const; // return a normalised input for a channel, in range -1 to 1, // ignores trim and deadzone float norm_input_ignore_trim() const; uint8_t percent_input() const; int16_t pwm_to_range() const; int16_t pwm_to_range_dz(uint16_t dead_zone) const; static const struct AP_Param::GroupInfo var_info[]; // return true if input is within deadzone of trim bool in_trim_dz() const; int16_t get_radio_in() const { return radio_in;} void set_radio_in(int16_t val) {radio_in = val;} int16_t get_control_in() const { return control_in;} void set_control_in(int16_t val) { control_in = val;} void clear_override(); void set_override(const uint16_t v, const uint32_t timestamp_ms); bool has_override() const; int16_t stick_mixing(const int16_t servo_in); // get control input with zero deadzone int16_t get_control_in_zero_dz(void) const; int16_t get_radio_min() const {return radio_min.get();} void set_radio_min(int16_t val) { radio_min = val;} int16_t get_radio_max() const {return radio_max.get();} void set_radio_max(int16_t val) {radio_max = val;} int16_t get_radio_trim() const { return radio_trim.get();} void set_radio_trim(int16_t val) { radio_trim.set(val);} void save_radio_trim() { radio_trim.save();} void set_and_save_trim() { radio_trim.set_and_save_ifchanged(radio_in);} // set and save trim if changed void set_and_save_radio_trim(int16_t val) { radio_trim.set_and_save_ifchanged(val);} ChannelType get_type(void) const { return type_in; } AP_Int16 option; // e.g. activate EPM gripper / enable fence // auxiliary switch support void init_aux(); bool read_aux(); // Aux Switch enumeration enum class AUX_FUNC { DO_NOTHING = 0, // aux switch disabled FLIP = 2, // flip SIMPLE_MODE = 3, // change to simple mode RTL = 4, // change to RTL flight mode SAVE_TRIM = 5, // save current position as level SAVE_WP = 7, // save mission waypoint or RTL if in auto mode CAMERA_TRIGGER = 9, // trigger camera servo or relay RANGEFINDER = 10, // allow enabling or disabling rangefinder in flight which helps avoid surface tracking when you are far above the ground FENCE = 11, // allow enabling or disabling fence in flight RESETTOARMEDYAW = 12, // UNUSED SUPERSIMPLE_MODE = 13, // change to simple mode in middle, super simple at top ACRO_TRAINER = 14, // low = disabled, middle = leveled, high = leveled and limited SPRAYER = 15, // enable/disable the crop sprayer AUTO = 16, // change to auto flight mode AUTOTUNE = 17, // auto tune LAND = 18, // change to LAND flight mode GRIPPER = 19, // Operate cargo grippers low=off, middle=neutral, high=on PARACHUTE_ENABLE = 21, // Parachute enable/disable PARACHUTE_RELEASE = 22, // Parachute release PARACHUTE_3POS = 23, // Parachute disable, enable, release with 3 position switch MISSION_RESET = 24, // Reset auto mission to start from first command ATTCON_FEEDFWD = 25, // enable/disable the roll and pitch rate feed forward ATTCON_ACCEL_LIM = 26, // enable/disable the roll, pitch and yaw accel limiting RETRACT_MOUNT = 27, // Retract Mount RELAY = 28, // Relay pin on/off (only supports first relay) LANDING_GEAR = 29, // Landing gear controller LOST_VEHICLE_SOUND = 30, // Play lost vehicle sound MOTOR_ESTOP = 31, // Emergency Stop Switch MOTOR_INTERLOCK = 32, // Motor On/Off switch BRAKE = 33, // Brake flight mode RELAY2 = 34, // Relay2 pin on/off RELAY3 = 35, // Relay3 pin on/off RELAY4 = 36, // Relay4 pin on/off THROW = 37, // change to THROW flight mode AVOID_ADSB = 38, // enable AP_Avoidance library PRECISION_LOITER = 39, // enable precision loiter AVOID_PROXIMITY = 40, // enable object avoidance using proximity sensors (ie. horizontal lidar) ARMDISARM = 41, // arm or disarm vehicle SMART_RTL = 42, // change to SmartRTL flight mode INVERTED = 43, // enable inverted flight WINCH_ENABLE = 44, // winch enable/disable WINCH_CONTROL = 45, // winch control RC_OVERRIDE_ENABLE = 46, // enable RC Override USER_FUNC1 = 47, // user function #1 USER_FUNC2 = 48, // user function #2 USER_FUNC3 = 49, // user function #3 LEARN_CRUISE = 50, // learn cruise throttle (Rover) MANUAL = 51, // manual mode ACRO = 52, // acro mode STEERING = 53, // steering mode HOLD = 54, // hold mode GUIDED = 55, // guided mode LOITER = 56, // loiter mode FOLLOW = 57, // follow mode CLEAR_WP = 58, // clear waypoints SIMPLE = 59, // simple mode ZIGZAG = 60, // zigzag mode ZIGZAG_SaveWP = 61, // zigzag save waypoint COMPASS_LEARN = 62, // learn compass offsets SAILBOAT_TACK = 63, // rover sailboat tack REVERSE_THROTTLE = 64, // reverse throttle input GPS_DISABLE = 65, // disable GPS for testing RELAY5 = 66, // Relay5 pin on/off RELAY6 = 67, // Relay6 pin on/off STABILIZE = 68, // stabilize mode POSHOLD = 69, // poshold mode ALTHOLD = 70, // althold mode FLOWHOLD = 71, // flowhold mode CIRCLE = 72, // circle mode DRIFT = 73, // drift mode SAILBOAT_MOTOR_3POS = 74, // Sailboat motoring 3pos SURFACE_TRACKING = 75, // Surface tracking upwards or downwards STANDBY = 76, // Standby mode TAKEOFF = 77, // takeoff RUNCAM_CONTROL = 78, // control RunCam device RUNCAM_OSD_CONTROL = 79, // control RunCam OSD VISODOM_CALIBRATE = 80, // calibrate visual odometry camera's attitude DISARM = 81, // disarm vehicle Q_ASSIST = 82, // disable, enable and force Q assist ZIGZAG_Auto = 83, // zigzag auto switch AIRMODE = 84, // enable / disable airmode for copter GENERATOR = 85, // generator control TER_DISABLE = 86, // disable terrain following in CRUISE/FBWB modes CROW_SELECT = 87, // select CROW mode for diff spoilers;high disables,mid forces progressive SOARING = 88, // three-position switch to set soaring mode LANDING_FLARE = 89, // force flare, throttle forced idle, pitch to LAND_PITCH_CD, tilts up EKF_POS_SOURCE = 90, // change EKF position source between primary, secondary and tertiary sources ARSPD_CALIBRATE= 91, // calibrate airspeed ratio FBWA = 92, // Fly-By-Wire-A RELOCATE_MISSION = 93, // used in separate branch MISSION_RELATIVE VTX_POWER = 94, // VTX power level FBWA_TAILDRAGGER = 95, // enables FBWA taildragger takeoff mode. Once this feature is enabled it will stay enabled until the aircraft goes above TKOFF_TDRAG_SPD1 airspeed, changes mode, or the pitch goes above the initial pitch when this is engaged or goes below 0 pitch. When enabled the elevator will be forced to TKOFF_TDRAG_ELEV. This option allows for easier takeoffs on taildraggers in FBWA mode, and also makes it easier to test auto-takeoff steering handling in FBWA. MODE_SWITCH_RESET = 96, // trigger re-reading of mode switch WIND_VANE_DIR_OFSSET= 97, // flag for windvane direction offset input, used with windvane type 2 // entries from 100 onwards are expected to be developer // options used for testing KILL_IMU1 = 100, // disable first IMU (for IMU failure testing) KILL_IMU2 = 101, // disable second IMU (for IMU failure testing) CAM_MODE_TOGGLE = 102, // Momentary switch to cycle camera modes EKF_LANE_SWITCH = 103, // trigger lane switch attempt EKF_YAW_RESET = 104, // trigger yaw reset attempt GPS_DISABLE_YAW = 105, // disable GPS yaw for testing DISABLE_AIRSPEED_USE = 106, // equivalent to AIRSPEED_USE 0 // if you add something here, make sure to update the documentation of the parameter in RC_Channel.cpp! // also, if you add an option >255, you will need to fix duplicate_options_exist // inputs from 200 will eventually used to replace RCMAP ROLL = 201, // roll input PITCH = 202, // pitch input THROTTLE = 203, // throttle pilot input YAW = 204, // yaw pilot input MAINSAIL = 207, // mainsail input FLAP = 208, // flap input FWD_THR = 209, // VTOL manual forward throttle AIRBRAKE = 210, // manual airbrake control WALKING_HEIGHT = 211, // walking robot height input // inputs for the use of onboard lua scripting SCRIPTING_1 = 300, SCRIPTING_2 = 301, SCRIPTING_3 = 302, SCRIPTING_4 = 303, SCRIPTING_5 = 304, SCRIPTING_6 = 305, SCRIPTING_7 = 306, SCRIPTING_8 = 307, }; typedef enum AUX_FUNC aux_func_t; // auxillary switch handling (n.b.: we store this as 2-bits!): enum class AuxSwitchPos : uint8_t { LOW, // indicates auxiliary switch is in the low position (pwm <1200) MIDDLE, // indicates auxiliary switch is in the middle position (pwm >1200, <1800) HIGH // indicates auxiliary switch is in the high position (pwm >1800) }; enum class AuxFuncTriggerSource : uint8_t { INIT, RC, BUTTON, MAVLINK, MISSION, SCRIPTING, }; bool read_3pos_switch(AuxSwitchPos &ret) const WARN_IF_UNUSED; bool read_6pos_switch(int8_t& position) WARN_IF_UNUSED; AuxSwitchPos get_aux_switch_pos() const; // wrapper function around do_aux_function which allows us to log bool run_aux_function(aux_func_t ch_option, AuxSwitchPos pos, AuxFuncTriggerSource source); #if !HAL_MINIMIZE_FEATURES const char *string_for_aux_function(AUX_FUNC function) const; #endif // pwm value under which we consider that Radio value is invalid static const uint16_t RC_MIN_LIMIT_PWM = 900; // pwm value above which we consider that Radio value is invalid static const uint16_t RC_MAX_LIMIT_PWM = 2200; // pwm value above which we condider that Radio min value is invalid static const uint16_t RC_CALIB_MIN_LIMIT_PWM = 1300; // pwm value under which we condider that Radio max value is invalid static const uint16_t RC_CALIB_MAX_LIMIT_PWM = 1700; // pwm value above which the switch/button will be invoked: static const uint16_t AUX_SWITCH_PWM_TRIGGER_HIGH = 1800; // pwm value below which the switch/button will be disabled: static const uint16_t AUX_SWITCH_PWM_TRIGGER_LOW = 1200; // pwm value above which the option will be invoked: static const uint16_t AUX_PWM_TRIGGER_HIGH = 1700; // pwm value below which the option will be disabled: static const uint16_t AUX_PWM_TRIGGER_LOW = 1300; protected: virtual void init_aux_function(aux_func_t ch_option, AuxSwitchPos); // virtual function to be overridden my subclasses virtual bool do_aux_function(aux_func_t ch_option, AuxSwitchPos); virtual void do_aux_function_armdisarm(const AuxSwitchPos ch_flag); void do_aux_function_avoid_adsb(const AuxSwitchPos ch_flag); void do_aux_function_avoid_proximity(const AuxSwitchPos ch_flag); void do_aux_function_camera_trigger(const AuxSwitchPos ch_flag); void do_aux_function_runcam_control(const AuxSwitchPos ch_flag); void do_aux_function_runcam_osd_control(const AuxSwitchPos ch_flag); void do_aux_function_fence(const AuxSwitchPos ch_flag); void do_aux_function_clear_wp(const AuxSwitchPos ch_flag); void do_aux_function_gripper(const AuxSwitchPos ch_flag); void do_aux_function_lost_vehicle_sound(const AuxSwitchPos ch_flag); virtual void do_aux_function_mission_reset(const AuxSwitchPos ch_flag); void do_aux_function_rc_override_enable(const AuxSwitchPos ch_flag); void do_aux_function_relay(uint8_t relay, bool val); void do_aux_function_sprayer(const AuxSwitchPos ch_flag); void do_aux_function_generator(const AuxSwitchPos ch_flag); typedef int8_t modeswitch_pos_t; virtual void mode_switch_changed(modeswitch_pos_t new_pos) { // no action by default (e.g. Tracker, Sub, who do their own thing) }; private: // pwm is stored here int16_t radio_in; // value generated from PWM normalised to configured scale int16_t control_in; AP_Int16 radio_min; AP_Int16 radio_trim; AP_Int16 radio_max; AP_Int8 reversed; AP_Int16 dead_zone; ChannelType type_in; int16_t high_in; // the input channel this corresponds to uint8_t ch_in; // overrides uint16_t override_value; uint32_t last_override_time; int16_t pwm_to_angle() const; int16_t pwm_to_angle_dz(uint16_t dead_zone) const; // Structure used to detect and debounce switch changes struct { int8_t debounce_position = -1; int8_t current_position = -1; uint32_t last_edge_time_ms; } switch_state; void reset_mode_switch(); void read_mode_switch(); bool debounce_completed(int8_t position); #if !HAL_MINIMIZE_FEATURES // Structure to lookup switch change announcements struct LookupTable{ AUX_FUNC option; const char *announcement; }; static const LookupTable lookuptable[]; #endif }; /* class RC_Channels. Hold the full set of RC_Channel objects */ class RC_Channels { public: friend class SRV_Channels; friend class RC_Channel; // constructor RC_Channels(void); void init(void); // get singleton instance static RC_Channels *get_singleton() { return _singleton; } static const struct AP_Param::GroupInfo var_info[]; // compatability functions for Plane: static uint16_t get_radio_in(const uint8_t chan) { RC_Channel *c = _singleton->channel(chan); if (c == nullptr) { return 0; } return c->get_radio_in(); } static RC_Channel *rc_channel(const uint8_t chan) { return _singleton->channel(chan); } //end compatability functions for Plane // this function is implemented in the child class in the vehicle // code virtual RC_Channel *channel(uint8_t chan) = 0; uint8_t get_radio_in(uint16_t *chans, const uint8_t num_channels); // reads a block of chanel radio_in values starting from channel 0 // returns the number of valid channels static uint8_t get_valid_channel_count(void); // returns the number of valid channels in the last read static int16_t get_receiver_rssi(void); // returns [0, 255] for receiver RSSI (0 is no link) if present, otherwise -1 bool read_input(void); // returns true if new input has been read in static void clear_overrides(void); // clears any active overrides static bool receiver_bind(const int dsmMode); // puts the receiver in bind mode if present, returns true if success static void set_override(const uint8_t chan, const int16_t value, const uint32_t timestamp_ms = 0); // set a channels override value static bool has_active_overrides(void); // returns true if there are overrides applied that are valid // returns a mask indicating which channels have overrides. Bit 0 // is RC channel 1. Beware this is not a cheap call. static uint16_t get_override_mask(); class RC_Channel *find_channel_for_option(const RC_Channel::aux_func_t option); bool duplicate_options_exist(); RC_Channel::AuxSwitchPos get_channel_pos(const uint8_t rcmapchan) const; void init_aux_all(); void read_aux_all(); // mode switch handling void reset_mode_switch(); virtual void read_mode_switch(); // has_valid_input should be pure-virtual when Plane is converted virtual bool has_valid_input() const { return false; }; virtual RC_Channel *get_arming_channel(void) const { return nullptr; }; bool gcs_overrides_enabled() const { return _gcs_overrides_enabled; } void set_gcs_overrides_enabled(bool enable) { _gcs_overrides_enabled = enable; if (!_gcs_overrides_enabled) { clear_overrides(); } } // should we ignore RC failsafe bits from receivers? bool ignore_rc_failsafe(void) const { return get_singleton() != nullptr && (_options & uint32_t(Option::IGNORE_FAILSAFE)); } // should we add a pad byte to Fport data bool fport_pad(void) const { return get_singleton() != nullptr && (_options & uint32_t(Option::FPORT_PAD)); } // returns true if we should pass through data for crsf telemetry bool crsf_custom_telemetry(void) const { return get_singleton() != nullptr && (_options & uint32_t(Option::CRSF_CUSTOM_TELEMETRY)); } // should a channel reverse option affect aux switches bool switch_reverse_allowed(void) const { return get_singleton() != nullptr && (_options & uint32_t(Option::ALLOW_SWITCH_REV)); } bool ignore_overrides() const { return _options & uint32_t(Option::IGNORE_OVERRIDES); } bool ignore_receiver() const { return _options & uint32_t(Option::IGNORE_RECEIVER); } bool log_raw_data() const { return _options & uint32_t(Option::LOG_DATA); } bool arming_check_throttle() const { return _options & uint32_t(Option::ARMING_CHECK_THROTTLE); } bool arming_skip_checks_rpy() const { return _options & uint32_t(Option::ARMING_SKIP_CHECK_RPY); } bool suppress_crsf_message(void) const { return get_singleton() != nullptr && (_options & uint32_t(Option::SUPPRESS_CRSF_MESSAGE)); } bool allow_rc_protocol_switching() const { return _options & uint32_t(Option::ALLOW_RC_SWITCHING); } // returns true if overrides should time out. If true is returned // then returned_timeout_ms will contain the timeout in // milliseconds, with 0 meaning overrides are disabled. bool get_override_timeout_ms(uint32_t &returned_timeout_ms) const { const float value = _override_timeout.get(); if (is_positive(value)) { returned_timeout_ms = uint32_t(value * 1e3f); return true; } if (is_zero(value)) { returned_timeout_ms = 0; return true; } // overrides will not time out return false; } // get mask of enabled protocols uint32_t enabled_protocols() const; // returns true if we have had a direct detach RC reciever, does not include overrides bool has_had_rc_receiver() const { return _has_had_rc_receiver; } /* get the RC input PWM value given a channel number. Note that channel numbers start at 1, as this API is designed for use in LUA */ bool get_pwm(uint8_t channel, uint16_t &pwm) const; uint32_t last_input_ms() const { return last_update_ms; }; // method for other parts of the system (e.g. Button and mavlink) // to trigger auxillary functions bool run_aux_function(RC_Channel::AUX_FUNC ch_option, RC_Channel::AuxSwitchPos pos, RC_Channel::AuxFuncTriggerSource source) { return rc_channel(0)->run_aux_function(ch_option, pos, source); } // check if flight mode channel is assigned RC option // return true if assigned bool flight_mode_channel_conflicts_with_rc_option() const; // flight_mode_channel_number must be overridden in vehicle specific code virtual int8_t flight_mode_channel_number() const = 0; protected: enum class Option { IGNORE_RECEIVER = (1U << 0), // RC receiver modules IGNORE_OVERRIDES = (1U << 1), // MAVLink overrides IGNORE_FAILSAFE = (1U << 2), // ignore RC failsafe bits FPORT_PAD = (1U << 3), // pad fport telem output LOG_DATA = (1U << 4), // log rc input bytes ARMING_CHECK_THROTTLE = (1U << 5), // run an arming check for neutral throttle ARMING_SKIP_CHECK_RPY = (1U << 6), // skip the an arming checks for the roll/pitch/yaw channels ALLOW_SWITCH_REV = (1U << 7), // honor the reversed flag on switches CRSF_CUSTOM_TELEMETRY = (1U << 8), // use passthrough data for crsf telemetry SUPPRESS_CRSF_MESSAGE = (1U << 9), // suppress CRSF mode/rate message for ELRS systems ALLOW_RC_SWITCHING = (1U << 10), // allow switching RC protocols }; void new_override_received() { has_new_overrides = true; } private: static RC_Channels *_singleton; // this static arrangement is to avoid static pointers in AP_Param tables static RC_Channel *channels; uint32_t last_update_ms; bool has_new_overrides; bool _has_had_rc_receiver; // true if we have had a direct detach RC reciever, does not include overrides AP_Float _override_timeout; AP_Int32 _options; AP_Int32 _protocols; RC_Channel *flight_mode_channel() const; // Allow override by default at start bool _gcs_overrides_enabled = true; }; RC_Channels &rc();