mirror of https://github.com/ArduPilot/ardupilot
466 lines
18 KiB
C++
466 lines
18 KiB
C++
/*
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control of servo output ranges, trim and servo reversal. This can
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optionally be used to provide separation of input and output channel
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ranges so that RCn_MIN, RCn_MAX, RCn_TRIM and RCn_REV only apply to
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the input side of RC_Channel
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It works by running servo output calculations as normal, then
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re-mapping the output according to the servo MIN/MAX/TRIM/REV from
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this object
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Only 4 channels of ranges are defined as those match the input
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channels for R/C sticks
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*/
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#pragma once
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#include <AP_Common/AP_Common.h>
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#include <AP_Param/AP_Param.h>
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#include <AP_RCMapper/AP_RCMapper.h>
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#include <AP_Common/Bitmask.h>
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#include <AP_Volz_Protocol/AP_Volz_Protocol.h>
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#include <AP_SBusOut/AP_SBusOut.h>
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#define NUM_SERVO_CHANNELS 16
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class SRV_Channels;
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/*
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class SRV_Channel. The class SRV_Channels contains an array of
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SRV_Channel objects. This is done to fit within the AP_Param limit
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of 64 parameters per object.
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*/
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class SRV_Channel {
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public:
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friend class SRV_Channels;
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// constructor
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SRV_Channel(void);
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static const struct AP_Param::GroupInfo var_info[];
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typedef enum
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{
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k_none = 0, ///< disabled
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k_manual = 1, ///< manual, just pass-thru the RC in signal
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k_flap = 2, ///< flap
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k_flap_auto = 3, ///< flap automated
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k_aileron = 4, ///< aileron
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k_unused1 = 5, ///< unused function
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k_mount_pan = 6, ///< mount yaw (pan)
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k_mount_tilt = 7, ///< mount pitch (tilt)
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k_mount_roll = 8, ///< mount roll
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k_mount_open = 9, ///< mount open (deploy) / close (retract)
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k_cam_trigger = 10, ///< camera trigger
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k_egg_drop = 11, ///< egg drop
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k_mount2_pan = 12, ///< mount2 yaw (pan)
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k_mount2_tilt = 13, ///< mount2 pitch (tilt)
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k_mount2_roll = 14, ///< mount2 roll
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k_mount2_open = 15, ///< mount2 open (deploy) / close (retract)
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k_dspoilerLeft1 = 16, ///< differential spoiler 1 (left wing)
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k_dspoilerRight1 = 17, ///< differential spoiler 1 (right wing)
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k_aileron_with_input = 18, ///< aileron, with rc input, deprecated
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k_elevator = 19, ///< elevator
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k_elevator_with_input = 20, ///< elevator, with rc input, deprecated
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k_rudder = 21, ///< secondary rudder channel
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k_sprayer_pump = 22, ///< crop sprayer pump channel
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k_sprayer_spinner = 23, ///< crop sprayer spinner channel
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k_flaperon_left = 24, ///< flaperon, left wing
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k_flaperon_right = 25, ///< flaperon, right wing
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k_steering = 26, ///< ground steering, used to separate from rudder
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k_parachute_release = 27, ///< parachute release
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k_gripper = 28, ///< gripper
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k_landing_gear_control = 29, ///< landing gear controller
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k_engine_run_enable = 30, ///< engine kill switch, used for gas airplanes and helicopters
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k_heli_rsc = 31, ///< helicopter RSC output
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k_heli_tail_rsc = 32, ///< helicopter tail RSC output
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k_motor1 = 33, ///< these allow remapping of copter motors
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k_motor2 = 34,
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k_motor3 = 35,
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k_motor4 = 36,
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k_motor5 = 37,
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k_motor6 = 38,
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k_motor7 = 39,
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k_motor8 = 40,
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k_motor_tilt = 41, ///< tiltrotor motor tilt control
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k_rcin1 = 51, ///< these are for pass-thru from arbitrary rc inputs
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k_rcin2 = 52,
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k_rcin3 = 53,
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k_rcin4 = 54,
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k_rcin5 = 55,
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k_rcin6 = 56,
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k_rcin7 = 57,
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k_rcin8 = 58,
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k_rcin9 = 59,
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k_rcin10 = 60,
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k_rcin11 = 61,
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k_rcin12 = 62,
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k_rcin13 = 63,
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k_rcin14 = 64,
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k_rcin15 = 65,
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k_rcin16 = 66,
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k_ignition = 67,
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k_choke = 68,
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k_starter = 69,
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k_throttle = 70,
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k_tracker_yaw = 71, ///< antennatracker yaw
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k_tracker_pitch = 72, ///< antennatracker pitch
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k_throttleLeft = 73,
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k_throttleRight = 74,
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k_tiltMotorLeft = 75, ///< vectored thrust, left tilt
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k_tiltMotorRight = 76, ///< vectored thrust, right tilt
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k_elevon_left = 77,
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k_elevon_right = 78,
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k_vtail_left = 79,
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k_vtail_right = 80,
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k_boost_throttle = 81, ///< vertical booster throttle
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k_motor9 = 82,
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k_motor10 = 83,
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k_motor11 = 84,
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k_motor12 = 85,
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k_dspoilerLeft2 = 86, ///< differential spoiler 2 (left wing)
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k_dspoilerRight2 = 87, ///< differential spoiler 2 (right wing)
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k_winch = 88,
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k_nr_aux_servo_functions ///< This must be the last enum value (only add new values _before_ this one)
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} Aux_servo_function_t;
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// used to get min/max/trim limit value based on reverse
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enum LimitValue {
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SRV_CHANNEL_LIMIT_TRIM,
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SRV_CHANNEL_LIMIT_MIN,
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SRV_CHANNEL_LIMIT_MAX,
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SRV_CHANNEL_LIMIT_ZERO_PWM
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};
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// set the output value as a pwm value
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void set_output_pwm(uint16_t pwm);
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// get the output value as a pwm value
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uint16_t get_output_pwm(void) const { return output_pwm; }
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// set angular range of scaled output
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void set_angle(int16_t angle);
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// set range of scaled output. Low is always zero
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void set_range(uint16_t high);
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// return true if the channel is reversed
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bool get_reversed(void) const {
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return reversed?true:false;
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}
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// set MIN/MAX parameters
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void set_output_min(uint16_t pwm) {
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servo_min.set(pwm);
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}
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void set_output_max(uint16_t pwm) {
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servo_max.set(pwm);
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}
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// get MIN/MAX/TRIM parameters
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uint16_t get_output_min(void) const {
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return servo_min;
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}
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uint16_t get_output_max(void) const {
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return servo_max;
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}
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uint16_t get_trim(void) const {
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return servo_trim;
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}
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// return true if function is for a multicopter motor
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static bool is_motor(SRV_Channel::Aux_servo_function_t function);
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// return the function of a channel
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SRV_Channel::Aux_servo_function_t get_function(void) const {
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return (SRV_Channel::Aux_servo_function_t)function.get();
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}
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// set and save function for channel. Used in upgrade of parameters in plane
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void function_set_and_save(SRV_Channel::Aux_servo_function_t f) {
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function.set_and_save(int8_t(f));
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}
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// set and save function for reversed. Used in upgrade of parameters in plane
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void reversed_set_and_save_ifchanged(bool r) {
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reversed.set_and_save_ifchanged(r?1:0);
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}
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// return true if the SERVOn_FUNCTION has been configured in
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// either storage or a defaults file. This is used for upgrade of
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// parameters in plane
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bool function_configured(void) const {
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return function.configured();
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}
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private:
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AP_Int16 servo_min;
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AP_Int16 servo_max;
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AP_Int16 servo_trim;
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// reversal, following convention that 1 means reversed, 0 means normal
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AP_Int8 reversed;
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AP_Int8 function;
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// a pending output value as PWM
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uint16_t output_pwm;
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// true for angle output type
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bool type_angle:1;
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// set_range() or set_angle() has been called
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bool type_setup:1;
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// the hal channel number
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uint8_t ch_num;
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// high point of angle or range output
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uint16_t high_out;
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// convert a 0..range_max to a pwm
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uint16_t pwm_from_range(int16_t scaled_value) const;
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// convert a -angle_max..angle_max to a pwm
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uint16_t pwm_from_angle(int16_t scaled_value) const;
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// convert a scaled output to a pwm value
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void calc_pwm(int16_t output_scaled);
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// output value based on function
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void output_ch(void);
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// setup output type and range based on function
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void aux_servo_function_setup(void);
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// return PWM for a given limit value
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uint16_t get_limit_pwm(LimitValue limit) const;
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// get normalised output from -1 to 1
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float get_output_norm(void);
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// a bitmask type wide enough for NUM_SERVO_CHANNELS
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typedef uint16_t servo_mask_t;
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// mask of channels where we have a output_pwm value. Cleared when a
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// scaled value is written.
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static servo_mask_t have_pwm_mask;
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};
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/*
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class SRV_Channels
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*/
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class SRV_Channels {
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public:
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friend class SRV_Channel;
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// constructor
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SRV_Channels(void);
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static const struct AP_Param::GroupInfo var_info[];
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// set the default function for a channel
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static void set_default_function(uint8_t chan, SRV_Channel::Aux_servo_function_t function);
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// set output value for a function channel as a pwm value
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static void set_output_pwm(SRV_Channel::Aux_servo_function_t function, uint16_t value);
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// set output value for a function channel as a pwm value on the first matching channel
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static void set_output_pwm_first(SRV_Channel::Aux_servo_function_t function, uint16_t value);
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// set output value for a specific function channel as a pwm value
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static void set_output_pwm_chan(uint8_t chan, uint16_t value);
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// set output value for a function channel as a scaled value. This
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// calls calc_pwm() to also set the pwm value
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static void set_output_scaled(SRV_Channel::Aux_servo_function_t function, int16_t value);
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// get scaled output for the given function type.
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static int16_t get_output_scaled(SRV_Channel::Aux_servo_function_t function);
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// get pwm output for the first channel of the given function type.
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static bool get_output_pwm(SRV_Channel::Aux_servo_function_t function, uint16_t &value);
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// get normalised output (-1 to 1 for angle, 0 to 1 for range). Value is taken from pwm value
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// return zero on error.
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static float get_output_norm(SRV_Channel::Aux_servo_function_t function);
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// get output channel mask for a function
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static uint16_t get_output_channel_mask(SRV_Channel::Aux_servo_function_t function);
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// limit slew rate to given limit in percent per second
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static void limit_slew_rate(SRV_Channel::Aux_servo_function_t function, float slew_rate, float dt);
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// call output_ch() on all channels
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static void output_ch_all(void);
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// setup output ESC scaling based on a channels MIN/MAX
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void set_esc_scaling_for(SRV_Channel::Aux_servo_function_t function);
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// return true when auto_trim enabled
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bool auto_trim_enabled(void) const { return auto_trim; }
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// adjust trim of a channel by a small increment
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void adjust_trim(SRV_Channel::Aux_servo_function_t function, float v);
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// save trims
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void save_trim(void);
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// setup for a reversible k_throttle (from -100 to 100)
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void set_reversible_throttle(void) {
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flags.k_throttle_reversible = true;
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}
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// set all outputs to the TRIM value
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static void output_trim_all(void);
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// setup IO failsafe for all channels to trim
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static void setup_failsafe_trim_all(void);
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// set output for all channels matching the given function type, allow radio_trim to center servo
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static void set_output_pwm_trimmed(SRV_Channel::Aux_servo_function_t function, int16_t value);
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// set and save the trim for a function channel to the output value
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static void set_trim_to_servo_out_for(SRV_Channel::Aux_servo_function_t function);
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// set the trim for a function channel to min of the channel
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static void set_trim_to_min_for(SRV_Channel::Aux_servo_function_t function);
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// set the trim for a function channel to given pwm
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static void set_trim_to_pwm_for(SRV_Channel::Aux_servo_function_t function, int16_t pwm);
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// set output to min value
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static void set_output_to_min(SRV_Channel::Aux_servo_function_t function);
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// set output to max value
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static void set_output_to_max(SRV_Channel::Aux_servo_function_t function);
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// set output to trim value
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static void set_output_to_trim(SRV_Channel::Aux_servo_function_t function);
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// copy radio_in to servo out
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static void copy_radio_in_out(SRV_Channel::Aux_servo_function_t function, bool do_input_output=false);
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// copy radio_in to servo_out by channel mask
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static void copy_radio_in_out_mask(uint16_t mask);
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// setup failsafe for an auxiliary channel function, by pwm
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static void set_failsafe_pwm(SRV_Channel::Aux_servo_function_t function, uint16_t pwm);
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// setup failsafe for an auxiliary channel function
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static void set_failsafe_limit(SRV_Channel::Aux_servo_function_t function, SRV_Channel::LimitValue limit);
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// setup safety for an auxiliary channel function (used when disarmed)
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static void set_safety_limit(SRV_Channel::Aux_servo_function_t function, SRV_Channel::LimitValue limit);
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// set servo to a LimitValue
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static void set_output_limit(SRV_Channel::Aux_servo_function_t function, SRV_Channel::LimitValue limit);
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// return true if a function is assigned to a channel
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static bool function_assigned(SRV_Channel::Aux_servo_function_t function);
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// set a servo_out value, and angle range, then calc_pwm
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static void move_servo(SRV_Channel::Aux_servo_function_t function,
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int16_t value, int16_t angle_min, int16_t angle_max);
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// assign and enable auxiliary channels
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static void enable_aux_servos(void);
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// enable channels by mask
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static void enable_by_mask(uint16_t mask);
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// return the current function for a channel
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static SRV_Channel::Aux_servo_function_t channel_function(uint8_t channel);
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// refresh aux servo to function mapping
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static void update_aux_servo_function(void);
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// set default channel for an auxiliary function
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static bool set_aux_channel_default(SRV_Channel::Aux_servo_function_t function, uint8_t channel);
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// find first channel that a function is assigned to
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static bool find_channel(SRV_Channel::Aux_servo_function_t function, uint8_t &chan);
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// find first channel that a function is assigned to, returning SRV_Channel object
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static SRV_Channel *get_channel_for(SRV_Channel::Aux_servo_function_t function, int8_t default_chan=-1);
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// call set_angle() on matching channels
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static void set_angle(SRV_Channel::Aux_servo_function_t function, uint16_t angle);
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// call set_range() on matching channels
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static void set_range(SRV_Channel::Aux_servo_function_t function, uint16_t range);
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// set output refresh frequency on a servo function
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static void set_rc_frequency(SRV_Channel::Aux_servo_function_t function, uint16_t frequency);
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// control pass-thru of channels
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void disable_passthrough(bool disable) {
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disabled_passthrough = disable;
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}
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// constrain to output min/max for function
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static void constrain_pwm(SRV_Channel::Aux_servo_function_t function);
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// calculate PWM for all channels
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static void calc_pwm(void);
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static SRV_Channel *srv_channel(uint8_t i) {
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return i<NUM_SERVO_CHANNELS?&channels[i]:nullptr;
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}
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// upgrade RC* parameters into SERVO* parameters
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static bool upgrade_parameters(const uint8_t old_keys[14], uint16_t aux_channel_mask, RCMapper *rcmap);
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static void upgrade_motors_servo(uint8_t ap_motors_key, uint8_t ap_motors_idx, uint8_t new_channel);
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// given a zero-based motor channel, return the k_motor function for that channel
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static SRV_Channel::Aux_servo_function_t get_motor_function(uint8_t channel) {
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if (channel < 8) {
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return SRV_Channel::Aux_servo_function_t(SRV_Channel::k_motor1+channel);
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}
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return SRV_Channel::Aux_servo_function_t((SRV_Channel::k_motor9+(channel-8)));
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}
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static void cork();
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static void push();
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private:
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struct {
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bool k_throttle_reversible:1;
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} flags;
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static bool disabled_passthrough;
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SRV_Channel::servo_mask_t trimmed_mask;
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static Bitmask function_mask;
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static bool initialised;
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// this static arrangement is to avoid having static objects in AP_Param tables
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static SRV_Channel *channels;
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static SRV_Channels *instance;
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// support for Volz protocol
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AP_Volz_Protocol volz;
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static AP_Volz_Protocol *volz_ptr;
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// support for SBUS protocol
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AP_SBusOut sbus;
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static AP_SBusOut *sbus_ptr;
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SRV_Channel obj_channels[NUM_SERVO_CHANNELS];
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static struct srv_function {
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// mask of what channels this applies to
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SRV_Channel::servo_mask_t channel_mask;
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// scaled output for this function
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int16_t output_scaled;
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} functions[SRV_Channel::k_nr_aux_servo_functions];
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AP_Int8 auto_trim;
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AP_Int16 default_rate;
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// return true if passthrough is disabled
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static bool passthrough_disabled(void) {
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return disabled_passthrough;
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}
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};
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