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ardupilot/ArduPlane/ArduPlane.cpp

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/// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
/*
Lead developer: Andrew Tridgell
Authors: Doug Weibel, Jose Julio, Jordi Munoz, Jason Short, Randy Mackay, Pat Hickey, John Arne Birkeland, Olivier Adler, Amilcar Lucas, Gregory Fletcher, Paul Riseborough, Brandon Jones, Jon Challinger
Thanks to: Chris Anderson, Michael Oborne, Paul Mather, Bill Premerlani, James Cohen, JB from rotorFX, Automatik, Fefenin, Peter Meister, Remzibi, Yury Smirnov, Sandro Benigno, Max Levine, Roberto Navoni, Lorenz Meier, Yury MonZon
Please contribute your ideas! See http://dev.ardupilot.org for details
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Plane.h"
#define SCHED_TASK(func, rate_hz, max_time_micros) SCHED_TASK_CLASS(Plane, &plane, func, rate_hz, max_time_micros)
/*
scheduler table - all regular tasks are listed here, along with how
often they should be called (in Hz) and the maximum time
they are expected to take (in microseconds)
*/
const AP_Scheduler::Task Plane::scheduler_tasks[] = {
// Units: Hz us
SCHED_TASK(ahrs_update, 400, 400),
SCHED_TASK(read_radio, 50, 100),
SCHED_TASK(check_short_failsafe, 50, 100),
SCHED_TASK(update_speed_height, 50, 200),
SCHED_TASK(update_flight_mode, 400, 100),
SCHED_TASK(stabilize, 400, 100),
SCHED_TASK(set_servos, 400, 100),
SCHED_TASK(read_control_switch, 7, 100),
SCHED_TASK(gcs_retry_deferred, 50, 500),
SCHED_TASK(update_GPS_50Hz, 50, 300),
SCHED_TASK(update_GPS_10Hz, 10, 400),
SCHED_TASK(navigate, 10, 150),
SCHED_TASK(update_compass, 10, 200),
SCHED_TASK(read_airspeed, 10, 100),
SCHED_TASK(update_alt, 10, 200),
SCHED_TASK(adjust_altitude_target, 10, 200),
SCHED_TASK(afs_fs_check, 10, 100),
SCHED_TASK(gcs_update, 50, 500),
SCHED_TASK(gcs_data_stream_send, 50, 500),
SCHED_TASK(update_events, 50, 150),
SCHED_TASK(check_usb_mux, 10, 100),
SCHED_TASK(read_battery, 10, 300),
SCHED_TASK(compass_accumulate, 50, 200),
SCHED_TASK(barometer_accumulate, 50, 150),
SCHED_TASK(update_notify, 50, 300),
SCHED_TASK(read_rangefinder, 50, 100),
SCHED_TASK(ice_update, 10, 100),
SCHED_TASK(compass_cal_update, 50, 50),
SCHED_TASK(accel_cal_update, 10, 50),
#if OPTFLOW == ENABLED
SCHED_TASK(update_optical_flow, 50, 50),
#endif
SCHED_TASK(one_second_loop, 1, 400),
SCHED_TASK(check_long_failsafe, 3, 400),
SCHED_TASK(read_receiver_rssi, 10, 100),
SCHED_TASK(rpm_update, 10, 100),
SCHED_TASK(airspeed_ratio_update, 1, 100),
SCHED_TASK(update_mount, 50, 100),
SCHED_TASK(update_trigger, 50, 100),
SCHED_TASK(log_perf_info, 0.2, 100),
SCHED_TASK(compass_save, 0.1, 200),
SCHED_TASK(Log_Write_Fast, 25, 300),
SCHED_TASK(update_logging1, 10, 300),
SCHED_TASK(update_logging2, 10, 300),
SCHED_TASK(parachute_check, 10, 200),
SCHED_TASK(terrain_update, 10, 200),
SCHED_TASK(update_is_flying_5Hz, 5, 100),
SCHED_TASK(dataflash_periodic, 50, 400),
SCHED_TASK(avoidance_adsb_update, 10, 100),
SCHED_TASK(button_update, 5, 100),
};
void Plane::setup()
{
cliSerial = hal.console;
// load the default values of variables listed in var_info[]
AP_Param::setup_sketch_defaults();
AP_Notify::flags.failsafe_battery = false;
notify.init(false);
rssi.init();
init_ardupilot();
// initialise the main loop scheduler
scheduler.init(&scheduler_tasks[0], ARRAY_SIZE(scheduler_tasks));
}
void Plane::loop()
{
uint32_t loop_us = 1000000UL / scheduler.get_loop_rate_hz();
// wait for an INS sample
ins.wait_for_sample();
uint32_t timer = micros();
perf.delta_us_fast_loop = timer - perf.fast_loopTimer_us;
G_Dt = perf.delta_us_fast_loop * 1.0e-6f;
if (perf.delta_us_fast_loop > loop_us + 500) {
perf.num_long++;
}
if (perf.delta_us_fast_loop > perf.G_Dt_max && perf.fast_loopTimer_us != 0) {
perf.G_Dt_max = perf.delta_us_fast_loop;
}
if (perf.delta_us_fast_loop < perf.G_Dt_min || perf.G_Dt_min == 0) {
perf.G_Dt_min = perf.delta_us_fast_loop;
}
perf.fast_loopTimer_us = timer;
perf.mainLoop_count++;
// tell the scheduler one tick has passed
scheduler.tick();
// run all the tasks that are due to run. Note that we only
// have to call this once per loop, as the tasks are scheduled
// in multiples of the main loop tick. So if they don't run on
// the first call to the scheduler they won't run on a later
// call until scheduler.tick() is called again
scheduler.run(loop_us);
}
// update AHRS system
void Plane::ahrs_update()
{
hal.util->set_soft_armed(arming.is_armed() &&
hal.util->safety_switch_state() != AP_HAL::Util::SAFETY_DISARMED);
#if HIL_SUPPORT
if (g.hil_mode == 1) {
// update hil before AHRS update
gcs_update();
}
#endif
ahrs.update();
if (should_log(MASK_LOG_IMU)) {
Log_Write_IMU();
}
// calculate a scaled roll limit based on current pitch
roll_limit_cd = aparm.roll_limit_cd * cosf(ahrs.pitch);
pitch_limit_min_cd = aparm.pitch_limit_min_cd * fabsf(cosf(ahrs.roll));
// updated the summed gyro used for ground steering and
// auto-takeoff. Dot product of DCM.c with gyro vector gives earth
// frame yaw rate
steer_state.locked_course_err += ahrs.get_yaw_rate_earth() * G_Dt;
steer_state.locked_course_err = wrap_PI(steer_state.locked_course_err);
// update inertial_nav for quadplane
quadplane.inertial_nav.update(G_Dt);
}
/*
update 50Hz speed/height controller
*/
void Plane::update_speed_height(void)
{
if (auto_throttle_mode) {
// Call TECS 50Hz update. Note that we call this regardless of
// throttle suppressed, as this needs to be running for
// takeoff detection
SpdHgt_Controller->update_50hz();
}
}
/*
update camera mount
*/
void Plane::update_mount(void)
{
#if MOUNT == ENABLED
camera_mount.update();
#endif
}
/*
update camera trigger
*/
void Plane::update_trigger(void)
{
#if CAMERA == ENABLED
camera.trigger_pic_cleanup();
if (camera.check_trigger_pin()) {
gcs_send_message(MSG_CAMERA_FEEDBACK);
if (should_log(MASK_LOG_CAMERA)) {
DataFlash.Log_Write_Camera(ahrs, gps, current_loc);
}
}
#endif
}
/*
read and update compass
*/
void Plane::update_compass(void)
{
if (g.compass_enabled && compass.read()) {
ahrs.set_compass(&compass);
compass.learn_offsets();
if (should_log(MASK_LOG_COMPASS) && !ahrs.have_ekf_logging()) {
DataFlash.Log_Write_Compass(compass);
}
} else {
ahrs.set_compass(NULL);
}
}
/*
if the compass is enabled then try to accumulate a reading
*/
void Plane::compass_accumulate(void)
{
if (g.compass_enabled) {
compass.accumulate();
}
}
/*
try to accumulate a baro reading
*/
void Plane::barometer_accumulate(void)
{
barometer.accumulate();
}
/*
do 10Hz logging
*/
void Plane::update_logging1(void)
{
if (should_log(MASK_LOG_ATTITUDE_MED) && !should_log(MASK_LOG_ATTITUDE_FAST)) {
Log_Write_Attitude();
}
if (should_log(MASK_LOG_ATTITUDE_MED) && !should_log(MASK_LOG_IMU))
Log_Write_IMU();
}
/*
do 10Hz logging - part2
*/
void Plane::update_logging2(void)
{
if (should_log(MASK_LOG_CTUN))
Log_Write_Control_Tuning();
if (should_log(MASK_LOG_NTUN))
Log_Write_Nav_Tuning();
if (should_log(MASK_LOG_RC))
Log_Write_RC();
if (should_log(MASK_LOG_IMU))
DataFlash.Log_Write_Vibration(ins);
}
/*
check for AFS failsafe check
*/
void Plane::afs_fs_check(void)
{
// perform AFS failsafe checks
afs.check(failsafe.last_heartbeat_ms, geofence_breached(), failsafe.AFS_last_valid_rc_ms);
}
/*
update aux servo mappings
*/
void Plane::update_aux(void)
{
RC_Channel_aux::enable_aux_servos();
}
void Plane::one_second_loop()
{
// send a heartbeat
gcs_send_message(MSG_HEARTBEAT);
// make it possible to change control channel ordering at runtime
set_control_channels();
#if HAVE_PX4_MIXER
if (!hal.util->get_soft_armed() && (last_mixer_crc == -1)) {
// if disarmed try to configure the mixer
setup_failsafe_mixing();
}
#endif // CONFIG_HAL_BOARD
// make it possible to change orientation at runtime
ahrs.set_orientation();
adsb.set_stall_speed_cm(aparm.airspeed_min);
// sync MAVLink system ID
mavlink_system.sysid = g.sysid_this_mav;
update_aux();
// update notify flags
AP_Notify::flags.pre_arm_check = arming.pre_arm_checks(false);
AP_Notify::flags.pre_arm_gps_check = true;
AP_Notify::flags.armed = arming.is_armed() || arming.arming_required() == AP_Arming::NO;
#if AP_TERRAIN_AVAILABLE
if (should_log(MASK_LOG_GPS)) {
terrain.log_terrain_data(DataFlash);
}
#endif
ins.set_raw_logging(should_log(MASK_LOG_IMU_RAW));
}
void Plane::log_perf_info()
{
if (scheduler.debug() != 0) {
gcs_send_text_fmt(MAV_SEVERITY_INFO, "PERF: %u/%u Dt=%u/%u Log=%u\n",
(unsigned)perf.num_long,
(unsigned)perf.mainLoop_count,
(unsigned)perf.G_Dt_max,
(unsigned)perf.G_Dt_min,
(unsigned)(DataFlash.num_dropped() - perf.last_log_dropped));
}
if (should_log(MASK_LOG_PM)) {
Log_Write_Performance();
}
resetPerfData();
}
void Plane::compass_save()
{
if (g.compass_enabled &&
compass.get_learn_type() >= Compass::LEARN_INTERNAL &&
!hal.util->get_soft_armed()) {
/*
only save offsets when disarmed
*/
compass.save_offsets();
}
}
void Plane::terrain_update(void)
{
#if AP_TERRAIN_AVAILABLE
terrain.update();
#endif
}
void Plane::dataflash_periodic(void)
{
DataFlash.periodic_tasks();
}
/*
once a second update the airspeed calibration ratio
*/
void Plane::airspeed_ratio_update(void)
{
if (!airspeed.enabled() ||
gps.status() < AP_GPS::GPS_OK_FIX_3D ||
gps.ground_speed() < 4) {
// don't calibrate when not moving
return;
}
if (airspeed.get_airspeed() < aparm.airspeed_min &&
gps.ground_speed() < (uint32_t)aparm.airspeed_min) {
// don't calibrate when flying below the minimum airspeed. We
// check both airspeed and ground speed to catch cases where
// the airspeed ratio is way too low, which could lead to it
// never coming up again
return;
}
if (labs(ahrs.roll_sensor) > roll_limit_cd ||
ahrs.pitch_sensor > aparm.pitch_limit_max_cd ||
ahrs.pitch_sensor < pitch_limit_min_cd) {
// don't calibrate when going beyond normal flight envelope
return;
}
const Vector3f &vg = gps.velocity();
airspeed.update_calibration(vg, aparm.airspeed_max);
gcs_send_airspeed_calibration(vg);
}
/*
read the GPS and update position
*/
void Plane::update_GPS_50Hz(void)
{
// get position from AHRS
have_position = ahrs.get_position(current_loc);
static uint32_t last_gps_reading[GPS_MAX_INSTANCES];
gps.update();
for (uint8_t i=0; i<gps.num_sensors(); i++) {
if (gps.last_message_time_ms(i) != last_gps_reading[i]) {
last_gps_reading[i] = gps.last_message_time_ms(i);
if (should_log(MASK_LOG_GPS)) {
Log_Write_GPS(i);
}
}
}
}
/*
read update GPS position - 10Hz update
*/
void Plane::update_GPS_10Hz(void)
{
static uint32_t last_gps_msg_ms;
if (gps.last_message_time_ms() != last_gps_msg_ms && gps.status() >= AP_GPS::GPS_OK_FIX_3D) {
last_gps_msg_ms = gps.last_message_time_ms();
if (ground_start_count > 1) {
ground_start_count--;
} else if (ground_start_count == 1) {
// We countdown N number of good GPS fixes
// so that the altitude is more accurate
// -------------------------------------
if (current_loc.lat == 0) {
ground_start_count = 5;
} else {
init_home();
// set system clock for log timestamps
uint64_t gps_timestamp = gps.time_epoch_usec();
hal.util->set_system_clock(gps_timestamp);
// update signing timestamp
GCS_MAVLINK::update_signing_timestamp(gps_timestamp);
if (g.compass_enabled) {
// Set compass declination automatically
const Location &loc = gps.location();
compass.set_initial_location(loc.lat, loc.lng);
}
ground_start_count = 0;
}
}
// see if we've breached the geo-fence
geofence_check(false);
#if CAMERA == ENABLED
if (camera.update_location(current_loc, plane.ahrs ) == true) {
do_take_picture();
}
#endif
if (!hal.util->get_soft_armed()) {
update_home();
// reset the landing altitude correction
auto_state.land_alt_offset = 0;
}
// update wind estimate
ahrs.estimate_wind();
} else if (gps.status() < AP_GPS::GPS_OK_FIX_3D && ground_start_count != 0) {
// lost 3D fix, start again
ground_start_count = 5;
}
calc_gndspeed_undershoot();
}
/*
main handling for AUTO mode
*/
void Plane::handle_auto_mode(void)
{
uint16_t nav_cmd_id;
if (mission.state() != AP_Mission::MISSION_RUNNING) {
// this should never be reached
set_mode(RTL, MODE_REASON_MISSION_END);
GCS_MAVLINK::send_statustext_all(MAV_SEVERITY_INFO, "Aircraft in auto without a running mission");
return;
}
nav_cmd_id = mission.get_current_nav_cmd().id;
if (quadplane.in_vtol_auto()) {
quadplane.control_auto(next_WP_loc);
} else if (nav_cmd_id == MAV_CMD_NAV_TAKEOFF ||
(nav_cmd_id == MAV_CMD_NAV_LAND && flight_stage == AP_SpdHgtControl::FLIGHT_LAND_ABORT)) {
takeoff_calc_roll();
takeoff_calc_pitch();
calc_throttle();
} else if (nav_cmd_id == MAV_CMD_NAV_LAND) {
calc_nav_roll();
calc_nav_pitch();
if (auto_state.land_complete) {
// during final approach constrain roll to the range
// allowed for level flight
nav_roll_cd = constrain_int32(nav_roll_cd, -g.level_roll_limit*100UL, g.level_roll_limit*100UL);
}
calc_throttle();
if (auto_state.land_complete) {
// we are in the final stage of a landing - force
// zero throttle
channel_throttle->set_servo_out(0);
}
} else {
// we are doing normal AUTO flight, the special cases
// are for takeoff and landing
if (nav_cmd_id != MAV_CMD_NAV_CONTINUE_AND_CHANGE_ALT) {
steer_state.hold_course_cd = -1;
}
auto_state.land_complete = false;
auto_state.land_pre_flare = false;
calc_nav_roll();
calc_nav_pitch();
calc_throttle();
}
}
/*
main flight mode dependent update code
*/
void Plane::update_flight_mode(void)
{
enum FlightMode effective_mode = control_mode;
if (control_mode == AUTO && g.auto_fbw_steer == 42) {
effective_mode = FLY_BY_WIRE_A;
}
if (effective_mode != AUTO) {
// hold_course is only used in takeoff and landing
steer_state.hold_course_cd = -1;
}
// ensure we are fly-forward
if (quadplane.in_vtol_mode()) {
ahrs.set_fly_forward(false);
} else {
ahrs.set_fly_forward(true);
}
switch (effective_mode)
{
case AUTO:
handle_auto_mode();
break;
case AVOID_ADSB:
case GUIDED:
if (auto_state.vtol_loiter && quadplane.available()) {
quadplane.guided_update();
break;
}
// fall through
case RTL:
case LOITER:
calc_nav_roll();
calc_nav_pitch();
calc_throttle();
break;
case TRAINING: {
training_manual_roll = false;
training_manual_pitch = false;
update_load_factor();
// if the roll is past the set roll limit, then
// we set target roll to the limit
if (ahrs.roll_sensor >= roll_limit_cd) {
nav_roll_cd = roll_limit_cd;
} else if (ahrs.roll_sensor <= -roll_limit_cd) {
nav_roll_cd = -roll_limit_cd;
} else {
training_manual_roll = true;
nav_roll_cd = 0;
}
// if the pitch is past the set pitch limits, then
// we set target pitch to the limit
if (ahrs.pitch_sensor >= aparm.pitch_limit_max_cd) {
nav_pitch_cd = aparm.pitch_limit_max_cd;
} else if (ahrs.pitch_sensor <= pitch_limit_min_cd) {
nav_pitch_cd = pitch_limit_min_cd;
} else {
training_manual_pitch = true;
nav_pitch_cd = 0;
}
if (fly_inverted()) {
nav_pitch_cd = -nav_pitch_cd;
}
break;
}
case ACRO: {
// handle locked/unlocked control
if (acro_state.locked_roll) {
nav_roll_cd = acro_state.locked_roll_err;
} else {
nav_roll_cd = ahrs.roll_sensor;
}
if (acro_state.locked_pitch) {
nav_pitch_cd = acro_state.locked_pitch_cd;
} else {
nav_pitch_cd = ahrs.pitch_sensor;
}
break;
}
case AUTOTUNE:
case FLY_BY_WIRE_A: {
// set nav_roll and nav_pitch using sticks
nav_roll_cd = channel_roll->norm_input() * roll_limit_cd;
nav_roll_cd = constrain_int32(nav_roll_cd, -roll_limit_cd, roll_limit_cd);
update_load_factor();
float pitch_input = channel_pitch->norm_input();
if (pitch_input > 0) {
nav_pitch_cd = pitch_input * aparm.pitch_limit_max_cd;
} else {
nav_pitch_cd = -(pitch_input * pitch_limit_min_cd);
}
adjust_nav_pitch_throttle();
nav_pitch_cd = constrain_int32(nav_pitch_cd, pitch_limit_min_cd, aparm.pitch_limit_max_cd.get());
if (fly_inverted()) {
nav_pitch_cd = -nav_pitch_cd;
}
if (failsafe.ch3_failsafe && g.short_fs_action == 2) {
// FBWA failsafe glide
nav_roll_cd = 0;
nav_pitch_cd = 0;
channel_throttle->set_servo_out(0);
}
if (g.fbwa_tdrag_chan > 0) {
// check for the user enabling FBWA taildrag takeoff mode
bool tdrag_mode = (hal.rcin->read(g.fbwa_tdrag_chan-1) > 1700);
if (tdrag_mode && !auto_state.fbwa_tdrag_takeoff_mode) {
if (auto_state.highest_airspeed < g.takeoff_tdrag_speed1) {
auto_state.fbwa_tdrag_takeoff_mode = true;
gcs_send_text(MAV_SEVERITY_WARNING, "FBWA tdrag mode");
}
}
}
break;
}
case FLY_BY_WIRE_B:
// Thanks to Yury MonZon for the altitude limit code!
nav_roll_cd = channel_roll->norm_input() * roll_limit_cd;
nav_roll_cd = constrain_int32(nav_roll_cd, -roll_limit_cd, roll_limit_cd);
update_load_factor();
update_fbwb_speed_height();
break;
case CRUISE:
/*
in CRUISE mode we use the navigation code to control
roll when heading is locked. Heading becomes unlocked on
any aileron or rudder input
*/
if ((channel_roll->get_control_in() != 0 ||
rudder_input != 0)) {
cruise_state.locked_heading = false;
cruise_state.lock_timer_ms = 0;
}
if (!cruise_state.locked_heading) {
nav_roll_cd = channel_roll->norm_input() * roll_limit_cd;
nav_roll_cd = constrain_int32(nav_roll_cd, -roll_limit_cd, roll_limit_cd);
update_load_factor();
} else {
calc_nav_roll();
}
update_fbwb_speed_height();
break;
case STABILIZE:
nav_roll_cd = 0;
nav_pitch_cd = 0;
// throttle is passthrough
break;
case CIRCLE:
// we have no GPS installed and have lost radio contact
// or we just want to fly around in a gentle circle w/o GPS,
// holding altitude at the altitude we set when we
// switched into the mode
nav_roll_cd = roll_limit_cd / 3;
update_load_factor();
calc_nav_pitch();
calc_throttle();
break;
case MANUAL:
// servo_out is for Sim control only
// ---------------------------------
channel_roll->set_servo_out(channel_roll->pwm_to_angle());
channel_pitch->set_servo_out(channel_pitch->pwm_to_angle());
steering_control.steering = steering_control.rudder = channel_rudder->pwm_to_angle();
break;
//roll: -13788.000, pitch: -13698.000, thr: 0.000, rud: -13742.000
case QSTABILIZE:
case QHOVER:
case QLOITER:
case QLAND:
case QRTL: {
// set nav_roll and nav_pitch using sticks
int16_t roll_limit = MIN(roll_limit_cd, quadplane.aparm.angle_max);
nav_roll_cd = channel_roll->norm_input() * roll_limit;
nav_roll_cd = constrain_int32(nav_roll_cd, -roll_limit, roll_limit);
float pitch_input = channel_pitch->norm_input();
if (pitch_input > 0) {
nav_pitch_cd = pitch_input * MIN(aparm.pitch_limit_max_cd, quadplane.aparm.angle_max);
} else {
nav_pitch_cd = pitch_input * MIN(-pitch_limit_min_cd, quadplane.aparm.angle_max);
}
nav_pitch_cd = constrain_int32(nav_pitch_cd, pitch_limit_min_cd, aparm.pitch_limit_max_cd.get());
break;
}
case INITIALISING:
// handled elsewhere
break;
}
}
void Plane::update_navigation()
{
// wp_distance is in ACTUAL meters, not the *100 meters we get from the GPS
// ------------------------------------------------------------------------
uint16_t radius = 0;
switch(control_mode) {
case AUTO:
if (home_is_set != HOME_UNSET) {
mission.update();
}
break;
case RTL:
if (quadplane.available() && quadplane.rtl_mode == 1 &&
nav_controller->reached_loiter_target()) {
set_mode(QRTL, MODE_REASON_UNKNOWN);
break;
} else if (g.rtl_autoland == 1 &&
!auto_state.checked_for_autoland &&
reached_loiter_target() &&
labs(altitude_error_cm) < 1000) {
// we've reached the RTL point, see if we have a landing sequence
jump_to_landing_sequence();
// prevent running the expensive jump_to_landing_sequence
// on every loop
auto_state.checked_for_autoland = true;
}
else if (g.rtl_autoland == 2 &&
!auto_state.checked_for_autoland) {
// Go directly to the landing sequence
jump_to_landing_sequence();
// prevent running the expensive jump_to_landing_sequence
// on every loop
auto_state.checked_for_autoland = true;
}
radius = abs(g.rtl_radius);
if (radius > 0) {
loiter.direction = (g.rtl_radius < 0) ? -1 : 1;
}
// fall through to LOITER
case LOITER:
case AVOID_ADSB:
case GUIDED:
update_loiter(radius);
break;
case CRUISE:
update_cruise();
break;
case MANUAL:
case STABILIZE:
case TRAINING:
case INITIALISING:
case ACRO:
case FLY_BY_WIRE_A:
case AUTOTUNE:
case FLY_BY_WIRE_B:
case CIRCLE:
case QSTABILIZE:
case QHOVER:
case QLOITER:
case QLAND:
case QRTL:
// nothing to do
break;
}
}
/*
set the flight stage
*/
void Plane::set_flight_stage(AP_SpdHgtControl::FlightStage fs)
{
if (fs == flight_stage) {
return;
}
switch (fs) {
case AP_SpdHgtControl::FLIGHT_LAND_APPROACH:
gcs_send_text_fmt(MAV_SEVERITY_INFO, "Landing approach start at %.1fm", (double)relative_altitude());
auto_state.land_in_progress = true;
#if GEOFENCE_ENABLED == ENABLED
if (g.fence_autoenable == 1) {
if (! geofence_set_enabled(false, AUTO_TOGGLED)) {
gcs_send_text(MAV_SEVERITY_NOTICE, "Disable fence failed (autodisable)");
} else {
gcs_send_text(MAV_SEVERITY_NOTICE, "Fence disabled (autodisable)");
}
} else if (g.fence_autoenable == 2) {
if (! geofence_set_floor_enabled(false)) {
gcs_send_text(MAV_SEVERITY_NOTICE, "Disable fence floor failed (autodisable)");
} else {
gcs_send_text(MAV_SEVERITY_NOTICE, "Fence floor disabled (auto disable)");
}
}
#endif
break;
case AP_SpdHgtControl::FLIGHT_LAND_ABORT:
gcs_send_text_fmt(MAV_SEVERITY_NOTICE, "Landing aborted, climbing to %dm", auto_state.takeoff_altitude_rel_cm/100);
auto_state.land_in_progress = false;
break;
case AP_SpdHgtControl::FLIGHT_LAND_PREFLARE:
case AP_SpdHgtControl::FLIGHT_LAND_FINAL:
auto_state.land_in_progress = true;
break;
case AP_SpdHgtControl::FLIGHT_NORMAL:
case AP_SpdHgtControl::FLIGHT_VTOL:
case AP_SpdHgtControl::FLIGHT_TAKEOFF:
auto_state.land_in_progress = false;
break;
}
flight_stage = fs;
if (should_log(MASK_LOG_MODE)) {
Log_Write_Status();
}
}
void Plane::update_alt()
{
barometer.update();
if (should_log(MASK_LOG_IMU)) {
Log_Write_Baro();
}
// calculate the sink rate.
float sink_rate;
Vector3f vel;
if (ahrs.get_velocity_NED(vel)) {
sink_rate = vel.z;
} else if (gps.status() >= AP_GPS::GPS_OK_FIX_3D && gps.have_vertical_velocity()) {
sink_rate = gps.velocity().z;
} else {
sink_rate = -barometer.get_climb_rate();
}
// low pass the sink rate to take some of the noise out
auto_state.sink_rate = 0.8f * auto_state.sink_rate + 0.2f*sink_rate;
geofence_check(true);
update_flight_stage();
if (auto_throttle_mode && !throttle_suppressed) {
float distance_beyond_land_wp = 0;
if (auto_state.land_in_progress && location_passed_point(current_loc, prev_WP_loc, next_WP_loc)) {
distance_beyond_land_wp = get_distance(current_loc, next_WP_loc);
}
SpdHgt_Controller->update_pitch_throttle(relative_target_altitude_cm(),
target_airspeed_cm,
flight_stage,
auto_state.land_in_progress,
distance_beyond_land_wp,
get_takeoff_pitch_min_cd(),
throttle_nudge,
tecs_hgt_afe(),
aerodynamic_load_factor);
}
}
/*
recalculate the flight_stage
*/
void Plane::update_flight_stage(void)
{
// Update the speed & height controller states
if (auto_throttle_mode && !throttle_suppressed) {
if (control_mode==AUTO) {
if (quadplane.in_vtol_auto()) {
set_flight_stage(AP_SpdHgtControl::FLIGHT_VTOL);
} else if (auto_state.takeoff_complete == false) {
set_flight_stage(AP_SpdHgtControl::FLIGHT_TAKEOFF);
} else if (mission.get_current_nav_cmd().id == MAV_CMD_NAV_LAND) {
if ((g.land_abort_throttle_enable && channel_throttle->get_control_in() >= 90) ||
auto_state.commanded_go_around ||
flight_stage == AP_SpdHgtControl::FLIGHT_LAND_ABORT){
// abort mode is sticky, it must complete while executing NAV_LAND
set_flight_stage(AP_SpdHgtControl::FLIGHT_LAND_ABORT);
} else if (auto_state.land_complete == true) {
set_flight_stage(AP_SpdHgtControl::FLIGHT_LAND_FINAL);
} else if (auto_state.land_pre_flare == true) {
set_flight_stage(AP_SpdHgtControl::FLIGHT_LAND_PREFLARE);
} else if (flight_stage != AP_SpdHgtControl::FLIGHT_LAND_APPROACH) {
bool heading_lined_up = abs(nav_controller->bearing_error_cd()) < 1000 && !nav_controller->data_is_stale();
bool on_flight_line = abs(nav_controller->crosstrack_error() < 5) && !nav_controller->data_is_stale();
bool below_prev_WP = current_loc.alt < prev_WP_loc.alt;
if ((mission.get_prev_nav_cmd_id() == MAV_CMD_NAV_LOITER_TO_ALT) ||
(auto_state.wp_proportion >= 0 && heading_lined_up && on_flight_line) ||
(auto_state.wp_proportion > 0.15f && heading_lined_up && below_prev_WP) ||
(auto_state.wp_proportion > 0.5f)) {
set_flight_stage(AP_SpdHgtControl::FLIGHT_LAND_APPROACH);
} else {
set_flight_stage(AP_SpdHgtControl::FLIGHT_NORMAL);
}
}
} else if (quadplane.in_assisted_flight()) {
set_flight_stage(AP_SpdHgtControl::FLIGHT_VTOL);
} else {
set_flight_stage(AP_SpdHgtControl::FLIGHT_NORMAL);
}
} else {
// If not in AUTO then assume normal operation for normal TECS operation.
// This prevents TECS from being stuck in the wrong stage if you switch from
// AUTO to, say, FBWB during a landing, an aborted landing or takeoff.
set_flight_stage(AP_SpdHgtControl::FLIGHT_NORMAL);
}
} else if (quadplane.in_vtol_mode() ||
quadplane.in_assisted_flight()) {
set_flight_stage(AP_SpdHgtControl::FLIGHT_VTOL);
} else {
set_flight_stage(AP_SpdHgtControl::FLIGHT_NORMAL);
}
// tell AHRS the airspeed to true airspeed ratio
airspeed.set_EAS2TAS(barometer.get_EAS2TAS());
}
#if OPTFLOW == ENABLED
// called at 50hz
void Plane::update_optical_flow(void)
{
static uint32_t last_of_update = 0;
// exit immediately if not enabled
if (!optflow.enabled()) {
return;
}
// read from sensor
optflow.update();
// write to log and send to EKF if new data has arrived
if (optflow.last_update() != last_of_update) {
last_of_update = optflow.last_update();
uint8_t flowQuality = optflow.quality();
Vector2f flowRate = optflow.flowRate();
Vector2f bodyRate = optflow.bodyRate();
ahrs.writeOptFlowMeas(flowQuality, flowRate, bodyRate, last_of_update);
Log_Write_Optflow();
}
}
#endif
AP_HAL_MAIN_CALLBACKS(&plane);
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