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author | Julian Oes <julian@oes.ch> | 2013-12-14 20:55:03 +0100 |
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committer | Julian Oes <julian@oes.ch> | 2013-12-16 17:13:40 +0100 |
commit | 624ae85efa078ddd63209fe53c2c215986116ad1 (patch) | |
tree | 86ac8d8704a299fb21642fa9fcc02dab835800b7 | |
parent | 6a624abd7c8fe9cf32b5f5a91bceeb93f730a0ec (diff) | |
download | px4-firmware-624ae85efa078ddd63209fe53c2c215986116ad1.tar.gz px4-firmware-624ae85efa078ddd63209fe53c2c215986116ad1.tar.bz2 px4-firmware-624ae85efa078ddd63209fe53c2c215986116ad1.zip |
Navigator: Use state table for main FSM
-rw-r--r-- | src/modules/navigator/navigator_main.cpp | 1049 | ||||
-rw-r--r-- | src/modules/systemlib/state_table.h | 75 |
2 files changed, 660 insertions, 464 deletions
diff --git a/src/modules/navigator/navigator_main.cpp b/src/modules/navigator/navigator_main.cpp index e2e2949e2..d258aa8a6 100644 --- a/src/modules/navigator/navigator_main.cpp +++ b/src/modules/navigator/navigator_main.cpp @@ -38,6 +38,7 @@ * Implementation of the main navigation state machine. * * Handles missions, geo fencing and failsafe navigation behavior. + * Published the mission item triplet for the position controller. */ #include <nuttx/config.h> @@ -66,21 +67,15 @@ #include <uORB/topics/navigation_capabilities.h> #include <systemlib/param/param.h> #include <systemlib/err.h> -#include <geo/geo.h> +#include <systemlib/state_table.h> #include <systemlib/perf_counter.h> #include <systemlib/systemlib.h> +#include <geo/geo.h> #include <mathlib/mathlib.h> #include <dataman/dataman.h> #include <mavlink/mavlink_log.h> -typedef enum { - NAVIGATION_MODE_NONE, - NAVIGATION_MODE_LOITER, - NAVIGATION_MODE_WAYPOINT, - NAVIGATION_MODE_LOITER_WAYPOINT, - NAVIGATION_MODE_RTL, - NAVIGATION_MODE_LOITER_RTL -} navigation_mode_t; + /* oddly, ERROR is not defined for c++ */ #ifdef ERROR @@ -95,7 +90,7 @@ static const int ERROR = -1; */ extern "C" __EXPORT int navigator_main(int argc, char *argv[]); -class Navigator +class Navigator : public StateTable { public: /** @@ -141,7 +136,7 @@ private: int _home_pos_sub; /**< home position subscription */ int _vstatus_sub; /**< vehicle status subscription */ int _params_sub; /**< notification of parameter updates */ - int _mission_sub; /**< notification of mission updates */ + int _offboard_mission_sub; /**< notification of offboard mission updates */ int _onboard_mission_sub; /**< notification of onboard mission updates */ int _capabilities_sub; /**< notification of vehicle capabilities updates */ @@ -157,22 +152,26 @@ private: perf_counter_t _loop_perf; /**< loop performance counter */ - unsigned _mission_item_count; /** number of mission items copied */ - unsigned _onboard_mission_item_count; /** number of onboard mission items copied */ - struct fence_s _fence; /**< storage for fence vertices */ + struct fence_s _fence; /**< storage for fence vertices */ bool _fence_valid; /**< flag if fence is valid */ bool _inside_fence; /**< vehicle is inside fence */ struct navigation_capabilities_s _nav_caps; + unsigned _current_offboard_mission_index; + unsigned _current_onboard_mission_index; + unsigned _offboard_mission_item_count; /** number of offboard mission items copied */ + unsigned _onboard_mission_item_count; /** number of onboard mission items copied */ + + enum { + MISSION_TYPE_NONE, + MISSION_TYPE_ONBOARD, + MISSION_TYPE_OFFBOARD, + } _mission_type; + bool _waypoint_position_reached; bool _waypoint_yaw_reached; uint64_t _time_first_inside_orbit; - bool _mission_item_reached; - - navigation_mode_t _mode; - unsigned _current_mission_index; - unsigned _current_onboard_mission_index; struct { float min_altitude; @@ -187,23 +186,70 @@ private: } _parameter_handles; /**< handles for parameters */ + enum Event { + EVENT_NONE_REQUESTED, + EVENT_LOITER_REQUESTED, + EVENT_MISSION_REQUESTED, + EVENT_RTL_REQUESTED, + EVENT_MISSION_FINISHED, + EVENT_MISSION_CHANGED, + EVENT_HOME_POSITION_CHANGED, + MAX_EVENT + }; + + enum State { + STATE_INIT, + STATE_NONE, + STATE_LOITER, + STATE_MISSION, + STATE_MISSION_LOITER, + STATE_RTL, + STATE_RTL_LOITER, + MAX_STATE + }; + + /** + * State machine transition table + */ + static StateTable::Tran const myTable[MAX_STATE][MAX_EVENT]; /** * Update our local parameter cache. */ - int parameters_update(); + void parameters_update(); + + /** + * Retrieve global position + */ + void global_position_update(); /** - * Retrieve mission. - */ - void mission_update(); + * Retrieve home position + */ + void home_position_update(); /** - * Retrieve onboard mission. - */ + * Retreive navigation capabilities + */ + void navigation_capabilities_update(); + + /** + * Retrieve offboard mission. + */ + void offboard_mission_update(); + + /** + * Retrieve onboard mission. + */ void onboard_mission_update(); /** + * Retrieve vehicle status + */ + void vehicle_status_update(); + + + /** * Shim for calling task_main from task_create. */ static void task_main_trampoline(int argc, char *argv[]); @@ -219,31 +265,52 @@ private: bool fence_valid(const struct fence_s &fence); - void set_mode(navigation_mode_t new_nav_mode); - - bool mission_possible(); - - bool onboard_mission_possible(); - - int set_waypoint_mission_item(dm_item_t dm_item, unsigned mission_item_index, struct mission_item_s *new_mission_item); + /** + * Functions that are triggered when a new state is entered. + */ + void start_none(); + void start_loiter(); + void start_mission(); + void start_mission_loiter(); + void start_rtl(); + void start_rtl_loiter(); - void publish_mission_item_triplet(); + /** + * Guards offboard mission + */ + bool offboard_mission_available(unsigned relative_index); - void publish_mission_result(); + /** + * Guards onboard mission + */ + bool onboard_mission_available(unsigned relative_index); - int advance_current_mission_item(); + /** + * Check if current mission item has been reached. + */ + bool mission_item_reached(); - void reset_mission_item_reached(); + /** + * Move to next waypoint + */ + int advance_mission(); - void check_mission_item_reached(); + /** + * Helper function to set a mission item + */ + int set_mission_item(unsigned relative_index, struct mission_item_s *mission_item) ; - void report_mission_reached(); + /** + * Helper function to set a loiter item + */ + void set_loiter_item(mission_item_s *new_loiter_position); - void start_waypoint(); + /** + * Publish a new mission item triplet for position controller + */ + void publish_mission_item_triplet(); - void start_loiter(mission_item_s *new_loiter_position); - void start_rtl(); /** * Compare two mission items if they are equivalent @@ -266,11 +333,13 @@ static const int ERROR = -1; Navigator *g_navigator; } -Navigator::Navigator() : +Navigator::Navigator() : + +/* state machine transition table */ + StateTable(&myTable[0][0], MAX_STATE, MAX_EVENT), _task_should_exit(false), _navigator_task(-1), - _mavlink_fd(-1), /* subscriptions */ @@ -278,7 +347,7 @@ Navigator::Navigator() : _home_pos_sub(-1), _vstatus_sub(-1), _params_sub(-1), - _mission_sub(-1), + _offboard_mission_sub(-1), _onboard_mission_sub(-1), _capabilities_sub(-1), @@ -289,21 +358,20 @@ Navigator::Navigator() : /* performance counters */ _loop_perf(perf_alloc(PC_ELAPSED, "navigator")), + /* states */ - _mission_item_count(0), - _onboard_mission_item_count(0), _fence_valid(false), _inside_fence(true), + _current_offboard_mission_index(0), + _current_onboard_mission_index(0), + _offboard_mission_item_count(0), + _onboard_mission_item_count(0), _waypoint_position_reached(false), _waypoint_yaw_reached(false), - _time_first_inside_orbit(0), - _mission_item_reached(false), - _mode(NAVIGATION_MODE_NONE), - _current_mission_index(0), - _current_onboard_mission_index(0) + _time_first_inside_orbit(0) { - _global_pos.valid = false; memset(&_fence, 0, sizeof(_fence)); + _parameter_handles.min_altitude = param_find("NAV_MIN_ALT"); _parameter_handles.loiter_radius = param_find("NAV_LOITER_RAD"); _parameter_handles.onboard_mission_enabled = param_find("NAV_ONB_MIS_EN"); @@ -317,8 +385,8 @@ Navigator::Navigator() : memset(&_mission_result, 0, sizeof(struct mission_result_s)); - /* fetch initial values */ - parameters_update(); + /* Initialize state machine */ + myState = STATE_INIT; } Navigator::~Navigator() @@ -346,35 +414,53 @@ Navigator::~Navigator() navigator::g_navigator = nullptr; } -int +void Navigator::parameters_update() { + /* read from param to clear updated flag */ + struct parameter_update_s update; + orb_copy(ORB_ID(parameter_update), _params_sub, &update); param_get(_parameter_handles.min_altitude, &(_parameters.min_altitude)); param_get(_parameter_handles.loiter_radius, &(_parameters.loiter_radius)); param_get(_parameter_handles.onboard_mission_enabled, &(_parameters.onboard_mission_enabled)); +} - return OK; +void +Navigator::global_position_update() +{ + /* load local copies */ + orb_copy(ORB_ID(vehicle_global_position), _global_pos_sub, &_global_pos); } void -Navigator::mission_update() +Navigator::home_position_update() { - struct mission_s mission; - if (orb_copy(ORB_ID(mission), _mission_sub, &mission) == OK) { + orb_copy(ORB_ID(home_position), _home_pos_sub, &_home_pos); +} - _mission_item_count = mission.count; - _current_mission_index = mission.current_index; +void +Navigator::navigation_capabilities_update() +{ + orb_copy(ORB_ID(navigation_capabilities), _capabilities_sub, &_nav_caps); +} + + +void +Navigator::offboard_mission_update() +{ + struct mission_s offboard_mission; + if (orb_copy(ORB_ID(mission), _offboard_mission_sub, &offboard_mission) == OK) { + + _offboard_mission_item_count = offboard_mission.count; + + if (offboard_mission.current_index != -1) { + _current_offboard_mission_index = offboard_mission.current_index; + } } else { - _mission_item_count = 0; - _current_mission_index = 0; - } - if ((!mission_possible() || !onboard_mission_possible()) && _mode == NAVIGATION_MODE_WAYPOINT) { - set_mode(NAVIGATION_MODE_LOITER); - } - else if (_mode == NAVIGATION_MODE_WAYPOINT) { - start_waypoint(); + _offboard_mission_item_count = 0; + _current_offboard_mission_index = 0; } } @@ -385,18 +471,23 @@ Navigator::onboard_mission_update() if (orb_copy(ORB_ID(onboard_mission), _onboard_mission_sub, &onboard_mission) == OK) { _onboard_mission_item_count = onboard_mission.count; - _current_onboard_mission_index = onboard_mission.current_index; + + if (onboard_mission.current_index != -1) { + _current_onboard_mission_index = onboard_mission.current_index; + } } else { _onboard_mission_item_count = 0; _current_onboard_mission_index = 0; } +} - if ((!mission_possible() || !onboard_mission_possible()) && _mode == NAVIGATION_MODE_WAYPOINT) { - set_mode(NAVIGATION_MODE_LOITER); - } - else if (_mode == NAVIGATION_MODE_WAYPOINT) { - start_waypoint(); +void +Navigator::vehicle_status_update() +{ + /* try to load initial states */ + if (orb_copy(ORB_ID(vehicle_status), _vstatus_sub, &_vstatus) != OK) { + _vstatus.arming_state = ARMING_STATE_STANDBY; /* in case the commander is not be running */ } } @@ -414,37 +505,34 @@ Navigator::task_main() warnx("Initializing.."); fflush(stdout); + _fence_valid = load_fence(GEOFENCE_MAX_VERTICES); + /* * do subscriptions */ _global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position)); - _mission_sub = orb_subscribe(ORB_ID(mission)); + _offboard_mission_sub = orb_subscribe(ORB_ID(mission)); _onboard_mission_sub = orb_subscribe(ORB_ID(onboard_mission)); _capabilities_sub = orb_subscribe(ORB_ID(navigation_capabilities)); _vstatus_sub = orb_subscribe(ORB_ID(vehicle_status)); _params_sub = orb_subscribe(ORB_ID(parameter_update)); _home_pos_sub = orb_subscribe(ORB_ID(home_position)); - // Load initial states - if (orb_copy(ORB_ID(vehicle_status), _vstatus_sub, &_vstatus) != OK) { - _vstatus.arming_state = ARMING_STATE_STANDBY; // for testing... commander may not be running - } - - mission_update(); + + /* copy all topics first time */ + parameters_update(); + global_position_update(); + home_position_update(); + navigation_capabilities_update(); + offboard_mission_update(); onboard_mission_update(); + vehicle_status_update(); /* rate limit vehicle status updates to 5Hz */ orb_set_interval(_vstatus_sub, 200); /* rate limit position updates to 50 Hz */ orb_set_interval(_global_pos_sub, 20); - parameters_update(); - - _fence_valid = load_fence(GEOFENCE_MAX_VERTICES); - - /* load the craft capabilities */ - orb_copy(ORB_ID(navigation_capabilities), _capabilities_sub, &_nav_caps); - /* wakeup source(s) */ struct pollfd fds[7]; @@ -457,7 +545,7 @@ Navigator::task_main() fds[2].events = POLLIN; fds[3].fd = _capabilities_sub; fds[3].events = POLLIN; - fds[4].fd = _mission_sub; + fds[4].fd = _offboard_mission_sub; fds[4].events = POLLIN; fds[5].fd = _onboard_mission_sub; fds[5].events = POLLIN; @@ -485,8 +573,8 @@ Navigator::task_main() /* only update vehicle status if it changed */ if (fds[6].revents & POLLIN) { - /* read from param to clear updated flag */ - orb_copy(ORB_ID(vehicle_status), _vstatus_sub, &_vstatus); + + vehicle_status_update(); /* Evaluate state machine from commander and set the navigator mode accordingly */ if (_vstatus.main_state == MAIN_STATE_AUTO) { @@ -497,135 +585,96 @@ Navigator::task_main() case NAVIGATION_STATE_ALTHOLD: case NAVIGATION_STATE_VECTOR: - set_mode(NAVIGATION_MODE_NONE); + /* don't publish a mission item triplet */ + dispatch(EVENT_NONE_REQUESTED); break; case NAVIGATION_STATE_AUTO_READY: case NAVIGATION_STATE_AUTO_TAKEOFF: + case NAVIGATION_STATE_AUTO_MISSION: - /* TODO probably not needed since takeoff WPs will just be passed on */ - //set_mode(NAVIGATION_MODE_TAKEOFF); + /* try mission if none is available, fallback to loiter instead */ + if (onboard_mission_available(0) || offboard_mission_available(0)) { + dispatch(EVENT_MISSION_REQUESTED); + } else { + dispatch(EVENT_LOITER_REQUESTED); + } break; case NAVIGATION_STATE_AUTO_LOITER: - set_mode(NAVIGATION_MODE_LOITER); + dispatch(EVENT_LOITER_REQUESTED); break; - case NAVIGATION_STATE_AUTO_MISSION: - - if (mission_possible() || onboard_mission_possible()) { - /* Start mission or onboard mission if available */ - set_mode(NAVIGATION_MODE_WAYPOINT); - } else { - /* else fallback to loiter */ - set_mode(NAVIGATION_MODE_LOITER); - } - break; case NAVIGATION_STATE_AUTO_RTL: - set_mode(NAVIGATION_MODE_RTL); + dispatch(EVENT_RTL_REQUESTED); break; case NAVIGATION_STATE_AUTO_LAND: /* TODO add this */ - //set_mode(NAVIGATION_MODE_LAND); + break; default: - warnx("Navigation state not supported"); + warnx("ERROR: Navigation state not supported"); break; } } else { - set_mode(NAVIGATION_MODE_NONE); + /* not in AUTO */ + dispatch(EVENT_NONE_REQUESTED); + } + + /* XXX Hack to get mavlink output going, try opening the fd with 5Hz */ + if (_mavlink_fd < 0) { + /* try to open the mavlink log device every once in a while */ + _mavlink_fd = open(MAVLINK_LOG_DEVICE, 0); } } + /* only update parameters if it changed */ if (fds[0].revents & POLLIN) { - /* read from param to clear updated flag */ - struct parameter_update_s update; - orb_copy(ORB_ID(parameter_update), _params_sub, &update); - /* update parameters from storage */ parameters_update(); - /* note that these new parameters won't be in effect until a mission triplet is published again */ } /* only update craft capabilities if they have changed */ if (fds[3].revents & POLLIN) { - orb_copy(ORB_ID(navigation_capabilities), _capabilities_sub, &_nav_caps); + navigation_capabilities_update(); } if (fds[4].revents & POLLIN) { - mission_update(); + offboard_mission_update(); + // XXX check if mission really changed + dispatch(EVENT_MISSION_CHANGED); } if (fds[5].revents & POLLIN) { onboard_mission_update(); + // XXX check if mission really changed + dispatch(EVENT_MISSION_CHANGED); } if (fds[2].revents & POLLIN) { - orb_copy(ORB_ID(home_position), _home_pos_sub, &_home_pos); + home_position_update(); + // XXX check if home position really changed + dispatch(EVENT_HOME_POSITION_CHANGED); } /* only run controller if position changed */ if (fds[1].revents & POLLIN) { - - /* XXX Hack to get mavlink output going */ - if (_mavlink_fd < 0) { - /* try to open the mavlink log device every once in a while */ - _mavlink_fd = open(MAVLINK_LOG_DEVICE, 0); - } - - /* load local copies */ - orb_copy(ORB_ID(vehicle_global_position), _global_pos_sub, &_global_pos); - - /* do stuff according to mode */ - switch (_mode) { - case NAVIGATION_MODE_NONE: - case NAVIGATION_MODE_LOITER: - case NAVIGATION_MODE_LOITER_WAYPOINT: - case NAVIGATION_MODE_LOITER_RTL: - break; - - case NAVIGATION_MODE_WAYPOINT: - - check_mission_item_reached(); - - if (_mission_item_reached) { - - - - if (onboard_mission_possible()) { - mavlink_log_info(_mavlink_fd, "[navigator] reached onboard WP %d", _current_onboard_mission_index); - } else { - mavlink_log_info(_mavlink_fd, "[navigator] reached WP %d", _current_mission_index); - report_mission_reached(); - } - - if (advance_current_mission_item() != OK) { - set_mode(NAVIGATION_MODE_LOITER_WAYPOINT); - } - } - break; - - case NAVIGATION_MODE_RTL: - - check_mission_item_reached(); - - if (_mission_item_reached) { - mavlink_log_info(_mavlink_fd, "[navigator] reached RTL position"); - set_mode(NAVIGATION_MODE_LOITER_RTL); - } - break; - default: - warnx("navigation mode not supported"); - break; + global_position_update(); + /* only check if waypoint has been reached in Mission or RTL mode */ + if (mission_item_reached()) { + /* try to advance mission */ + if (advance_mission() != OK) { + dispatch(EVENT_MISSION_FINISHED); + } } } perf_end(_loop_perf); @@ -668,15 +717,57 @@ Navigator::status() (double)_global_pos.alt, (double)_global_pos.relative_alt); warnx("Ground velocity in m/s, x %5.5f, y %5.5f, z %5.5f", (double)_global_pos.vx, (double)_global_pos.vy, (double)_global_pos.vz); - warnx("Compass heading in degrees %5.5f", (double)_global_pos.yaw * 57.2957795); + warnx("Compass heading in degrees %5.5f", (double)(_global_pos.yaw * M_RAD_TO_DEG_F)); } if (_fence_valid) { warnx("Geofence is valid"); warnx("Vertex longitude latitude"); for (unsigned i = 0; i < _fence.count; i++) warnx("%6u %9.5f %8.5f", i, (double)_fence.vertices[i].lon, (double)_fence.vertices[i].lat); - } else + } else { warnx("Geofence not set"); + } + + switch (myState) { + case STATE_INIT: + warnx("State: Init"); + break; + case STATE_NONE: + warnx("State: None"); + break; + case STATE_LOITER: + warnx("State: Loiter"); + break; + case STATE_MISSION: + warnx("State: Mission"); + switch (_mission_type) { + case MISSION_TYPE_ONBOARD: + warnx("Mission type: Onboard"); + break; + case MISSION_TYPE_OFFBOARD: + warnx("Mission type: Offboard"); + break; + case MISSION_TYPE_NONE: + default: + warnx("ERROR: Mission type unsupported"); + break; + } + warnx("Onboard mission: %d of %d", _current_onboard_mission_index, _onboard_mission_item_count); + warnx("Offboard mission: %d of %d", _current_offboard_mission_index, _offboard_mission_item_count); + break; + case STATE_MISSION_LOITER: + warnx("State: Loiter after Mission"); + break; + case STATE_RTL: + warnx("State: RTL"); + break; + case STATE_RTL_LOITER: + warnx("State: Loiter after RTL"); + break; + default: + warnx("State: Unknown"); + break; + } } void @@ -767,262 +858,360 @@ Navigator::fence_point(int argc, char *argv[]) errx(1, "can't store fence point"); } -void -Navigator::set_mode(navigation_mode_t new_nav_mode) -{ - if (new_nav_mode == _mode) { - /* no change, return */ - return; - } - switch (new_nav_mode) { - case NAVIGATION_MODE_NONE: - // warnx("Set mode NONE"); - _mode = new_nav_mode; - break; +StateTable::Tran const Navigator::myTable[MAX_STATE][MAX_EVENT] = { + { + /* STATE_INIT */ + /* EVENT_NONE_REQUESTED */ {ACTION(&Navigator::start_none), STATE_NONE}, + /* EVENT_LOITER_REQUESTED */ {ACTION(&Navigator::start_loiter), STATE_LOITER}, + /* EVENT_MISSION_REQUESTED */ {ACTION(&Navigator::start_mission), STATE_MISSION}, + /* EVENT_RTL_REQUESTED */ {ACTION(&Navigator::start_rtl), STATE_RTL}, + /* EVENT_MISSION_FINISHED */ {NO_ACTION, STATE_INIT}, + /* EVENT_MISSION_CHANGED */ {NO_ACTION, STATE_INIT}, + /* EVENT_HOME_POSITION_CHANGED */ {NO_ACTION, STATE_INIT}, + }, + { + /* STATE_NONE */ + /* EVENT_NONE_REQUESTED */ {NO_ACTION, STATE_NONE}, + /* EVENT_LOITER_REQUESTED */ {ACTION(&Navigator::start_loiter), STATE_LOITER}, + /* EVENT_MISSION_REQUESTED */ {ACTION(&Navigator::start_mission), STATE_MISSION}, + /* EVENT_RTL_REQUESTED */ {ACTION(&Navigator::start_rtl), STATE_RTL}, + /* EVENT_MISSION_FINISHED */ {NO_ACTION, STATE_NONE}, + /* EVENT_MISSION_CHANGED */ {NO_ACTION, STATE_NONE}, + /* EVENT_HOME_POSITION_CHANGED */ {NO_ACTION, STATE_NONE}, + }, + { + /* STATE_LOITER */ + /* EVENT_NONE_REQUESTED */ {ACTION(&Navigator::start_none), STATE_NONE}, + /* EVENT_LOITER_REQUESTED */ {NO_ACTION, STATE_LOITER}, + /* EVENT_MISSION_REQUESTED */ {ACTION(&Navigator::start_mission), STATE_MISSION}, + /* EVENT_RTL_REQUESTED */ {ACTION(&Navigator::start_rtl), STATE_RTL}, + /* EVENT_MISSION_FINISHED */ {NO_ACTION, STATE_LOITER}, + /* EVENT_MISSION_CHANGED */ {NO_ACTION, STATE_LOITER}, + /* EVENT_HOME_POSITION_CHANGED */ {NO_ACTION, STATE_LOITER}, + }, + { + /* STATE_MISSION */ + /* EVENT_NONE_REQUESTED */ {ACTION(&Navigator::start_none), STATE_NONE}, + /* EVENT_LOITER_REQUESTED */ {ACTION(&Navigator::start_loiter), STATE_LOITER}, + /* EVENT_MISSION_REQUESTED */ {NO_ACTION, STATE_MISSION}, + /* EVENT_RTL_REQUESTED */ {ACTION(&Navigator::start_rtl), STATE_RTL}, + /* EVENT_MISSION_FINISHED */ {ACTION(&Navigator::start_mission_loiter), STATE_MISSION_LOITER}, + /* EVENT_MISSION_CHANGED */ {ACTION(&Navigator::start_mission), STATE_MISSION}, + /* EVENT_HOME_POSITION_CHANGED */ {NO_ACTION, STATE_MISSION}, + }, + { + /* STATE_MISSION_LOITER */ + /* EVENT_NONE_REQUESTED */ {ACTION(&Navigator::start_none), STATE_NONE}, + /* EVENT_LOITER_REQUESTED */ {NO_ACTION, STATE_MISSION_LOITER}, + /* EVENT_MISSION_REQUESTED */ {NO_ACTION, STATE_MISSION_LOITER}, + /* EVENT_RTL_REQUESTED */ {ACTION(&Navigator::start_rtl), STATE_RTL}, + /* EVENT_MISSION_FINISHED */ {NO_ACTION, STATE_MISSION_LOITER}, + /* EVENT_MISSION_CHANGED */ {ACTION(&Navigator::start_mission), STATE_MISSION}, + /* EVENT_HOME_POSITION_CHANGED */ {NO_ACTION, STATE_MISSION_LOITER}, + }, + { + /* STATE_RTL */ + /* EVENT_NONE_REQUESTED */ {ACTION(&Navigator::start_none), STATE_NONE}, + /* EVENT_LOITER_REQUESTED */ {ACTION(&Navigator::start_loiter), STATE_LOITER}, + /* EVENT_MISSION_REQUESTED */ {ACTION(&Navigator::start_mission), STATE_MISSION}, + /* EVENT_RTL_REQUESTED */ {NO_ACTION, STATE_RTL}, + /* EVENT_MISSION_FINISHED */ {ACTION(&Navigator::start_rtl_loiter), STATE_RTL_LOITER}, + /* EVENT_MISSION_CHANGED */ {NO_ACTION, STATE_RTL}, + /* EVENT_HOME_POSITION_CHANGED */ {ACTION(&Navigator::start_loiter), STATE_RTL}, + }, + { + /* STATE_RTL_LOITER */ + /* EVENT_NONE_REQUESTED */ {ACTION(&Navigator::start_none), STATE_NONE}, + /* EVENT_LOITER_REQUESTED */ {NO_ACTION, STATE_RTL_LOITER}, + /* EVENT_MISSION_REQUESTED */ {ACTION(&Navigator::start_mission), STATE_MISSION}, + /* EVENT_RTL_REQUESTED */ {NO_ACTION, STATE_RTL_LOITER}, + /* EVENT_MISSION_FINISHED */ {NO_ACTION, STATE_RTL_LOITER}, + /* EVENT_MISSION_CHANGED */ {NO_ACTION, STATE_RTL_LOITER}, + /* EVENT_HOME_POSITION_CHANGED */ {ACTION(&Navigator::start_loiter), STATE_LOITER}, + }, +}; - case NAVIGATION_MODE_LOITER: - - /* decide depending on previous navigation mode */ - switch (_mode) { - case NAVIGATION_MODE_NONE: - - case NAVIGATION_MODE_WAYPOINT: - case NAVIGATION_MODE_RTL: { - - /* use current position and loiter around it */ - mission_item_s global_position_mission_item; - global_position_mission_item.lat = (double)_global_pos.lat / 1e7; - global_position_mission_item.lon = (double)_global_pos.lon / 1e7; - - /* XXX get rid of ugly conversion for home position altitude */ - float global_min_alt = _parameters.min_altitude + (float)_home_pos.alt/1e3f; - - /* Use current altitude if above min altitude set by parameter */ - if (_global_pos.alt < global_min_alt) { - global_position_mission_item.altitude = global_min_alt; - mavlink_log_info(_mavlink_fd, "[navigator] loiter %.1fm higher", (double)(global_min_alt - _global_pos.alt)); - } else { - global_position_mission_item.altitude = _global_pos.alt; - mavlink_log_info(_mavlink_fd, "[navigator] loiter here"); - } - start_loiter(&global_position_mission_item); - _mode = new_nav_mode; - - break; - } - case NAVIGATION_MODE_LOITER_WAYPOINT: - case NAVIGATION_MODE_LOITER_RTL: - /* already loitering, just continue */ - _mode = new_nav_mode; - // warnx("continue loiter"); - break; +void +Navigator::start_none() +{ + _mission_item_triplet.previous_valid = false; + _mission_item_triplet.current_valid = false; + _mission_item_triplet.next_valid = false; - case NAVIGATION_MODE_LOITER: - default: - // warnx("previous navigation mode not supported"); - break; - } - break; + publish_mission_item_triplet(); +} - case NAVIGATION_MODE_WAYPOINT: +void +Navigator::start_loiter() +{ + struct mission_item_s loiter_item; - /* Start mission if there is one available */ - start_waypoint(); - _mode = new_nav_mode; - mavlink_log_info(_mavlink_fd, "[navigator] start waypoint mission"); - break; + loiter_item.lat = (double)_global_pos.lat / 1e7; + loiter_item.lon = (double)_global_pos.lon / 1e7; + loiter_item.yaw = 0.0f; - case NAVIGATION_MODE_LOITER_WAYPOINT: + /* XXX get rid of ugly conversion for home position altitude */ + float global_min_alt = _parameters.min_altitude + (float)_home_pos.alt/1e3f; - start_loiter(&_mission_item_triplet.current); - _mode = new_nav_mode; - mavlink_log_info(_mavlink_fd, "[navigator] loiter at WP %d", _current_mission_index-1); - break; + /* Use current altitude if above min altitude set by parameter */ + if (_global_pos.alt < global_min_alt) { + loiter_item.altitude = global_min_alt; + mavlink_log_info(_mavlink_fd, "[navigator] loiter %.1fm higher", (double)(global_min_alt - _global_pos.alt)); + } else { + loiter_item.altitude = _global_pos.alt; + mavlink_log_info(_mavlink_fd, "[navigator] loiter here"); + } - case NAVIGATION_MODE_RTL: + set_loiter_item(&loiter_item); - /* decide depending on previous navigation mode */ - switch (_mode) { - case NAVIGATION_MODE_NONE: - case NAVIGATION_MODE_LOITER: - case NAVIGATION_MODE_WAYPOINT: - case NAVIGATION_MODE_LOITER_WAYPOINT: + publish_mission_item_triplet(); +} - /* start RTL here */ - start_rtl(); - _mode = new_nav_mode; - mavlink_log_info(_mavlink_fd, "[navigator] start RTL"); - break; - case NAVIGATION_MODE_LOITER_RTL: - /* already loitering after RTL, just continue */ - // warnx("stay in loiter after RTL"); - break; +void +Navigator::start_mission() +{ + /* leave previous mission item as isas is */ - case NAVIGATION_MODE_RTL: - default: - warnx("previous navigation mode not supported"); - break; - } - break; + if(set_mission_item(0, &_mission_item_triplet.current) == OK) { + _mission_item_triplet.current_valid = true; + } else { + _mission_item_triplet.current_valid = false; + warnx("ERROR: current WP can't be set"); + } - case NAVIGATION_MODE_LOITER_RTL: + if(set_mission_item(1, &_mission_item_triplet.next) == OK) { + _mission_item_triplet.next_valid = true; + } else { + _mission_item_triplet.next_valid = false; + } - /* TODO: get rid of this conversion */ - mission_item_s home_position_mission_item; - home_position_mission_item.lat = (double)_home_pos.lat / 1e7; - home_position_mission_item.lon = (double)_home_pos.lon / 1e7; - home_position_mission_item.altitude = _home_pos.alt / 1e3f + _parameters.min_altitude; - start_loiter(&home_position_mission_item); - mavlink_log_info(_mavlink_fd, "[navigator] loiter after RTL"); - _mode = new_nav_mode; + switch (_mission_type) { + case MISSION_TYPE_ONBOARD: + mavlink_log_info(_mavlink_fd, "[navigator] heading to onboard WP %d", _current_onboard_mission_index); + break; + case MISSION_TYPE_OFFBOARD: + mavlink_log_info(_mavlink_fd, "[navigator] heading to offboard WP %d", _current_offboard_mission_index); + break; + case MISSION_TYPE_NONE: + default: + warnx("ERROR: Mission type unsupported"); break; } -} -bool -Navigator::mission_possible() -{ - return _mission_item_count > 0 && - !(_current_mission_index >= _mission_item_count); + publish_mission_item_triplet(); } -bool -Navigator::onboard_mission_possible() -{ - return _onboard_mission_item_count > 0 && - !(_current_onboard_mission_index >= _onboard_mission_item_count) && - _parameters.onboard_mission_enabled; -} + int -Navigator::set_waypoint_mission_item(dm_item_t dm_item, unsigned mission_item_index, struct mission_item_s *new_mission_item) +Navigator::advance_mission() { - struct mission_item_s mission_item; + switch (_mission_type) { + case MISSION_TYPE_ONBOARD: + warnx("advance onboard before: %d", _current_onboard_mission_index); + _current_onboard_mission_index++; + warnx("advance onboard after: %d", _current_onboard_mission_index); + break; + case MISSION_TYPE_OFFBOARD: + warnx("advance offboard before: %d", _current_offboard_mission_index); + _current_offboard_mission_index++; + warnx("advance offboard after: %d", _current_offboard_mission_index); + break; + case MISSION_TYPE_NONE: + default: + warnx("ERROR: Mission type unsupported"); + return ERROR; + } - if (dm_read(dm_item, mission_item_index, &mission_item, sizeof(struct mission_item_s)) != sizeof(struct mission_item_s)) { + /* if there is no more mission available, don't advance and switch to loiter at current WP */ + if (!_mission_item_triplet.next_valid) { + warnx("no next valid"); return ERROR; } - memcpy(new_mission_item, &mission_item, sizeof(struct mission_item_s)); + /* copy current mission to previous item */ + memcpy(&_mission_item_triplet.previous, &_mission_item_triplet.current, sizeof(mission_item_s)); + _mission_item_triplet.previous_valid = _mission_item_triplet.current_valid; - if (new_mission_item->nav_cmd == NAV_CMD_RETURN_TO_LAUNCH) { - /* if it is a RTL waypoint, append the home position */ - new_mission_item->lat = (double)_home_pos.lat / 1e7; - new_mission_item->lon = (double)_home_pos.lon / 1e7; - new_mission_item->altitude = (float)_home_pos.alt / 1e3f + _parameters.min_altitude; - new_mission_item->loiter_radius = _parameters.loiter_radius; // TODO: get rid of magic number - new_mission_item->radius = 50.0f; // TODO: get rid of magic number + if(set_mission_item(0, &_mission_item_triplet.current) == OK) { + _mission_item_triplet.current_valid = true; + + } else { + /* should never ever happen */ + _mission_item_triplet.current_valid = false; + warnx("no current available"); + return ERROR; + } + + if(set_mission_item(1, &_mission_item_triplet.next) == OK) { + _mission_item_triplet.next_valid = true; + + } else { + _mission_item_triplet.next_valid = false; } + publish_mission_item_triplet(); return OK; } void -Navigator::publish_mission_item_triplet() +Navigator::start_mission_loiter() { - /* lazily publish the mission triplet only once available */ - if (_triplet_pub > 0) { - /* publish the mission triplet */ - orb_publish(ORB_ID(mission_item_triplet), _triplet_pub, &_mission_item_triplet); - - } else { - /* advertise and publish */ - _triplet_pub = orb_advertise(ORB_ID(mission_item_triplet), &_mission_item_triplet); + /* make sure the current WP is valid */ + if (!_mission_item_triplet.current_valid) { + warnx("ERROR: cannot switch to offboard mission loiter"); + return; } -} -void -Navigator::publish_mission_result() -{ - /* lazily publish the mission result only once available */ - if (_mission_result_pub > 0) { - /* publish the mission result */ - orb_publish(ORB_ID(mission_result), _mission_result_pub, &_mission_result); + set_loiter_item(&_mission_item_triplet.current); - } else { - /* advertise and publish */ - _mission_result_pub = orb_advertise(ORB_ID(mission_result), &_mission_result); + switch (_mission_type) { + case MISSION_TYPE_ONBOARD: + mavlink_log_info(_mavlink_fd, "[navigator] loiter at onboard WP %d", _current_onboard_mission_index-1); + break; + case MISSION_TYPE_OFFBOARD: + mavlink_log_info(_mavlink_fd, "[navigator] loiter at offboard WP %d", _current_offboard_mission_index-1); + break; + case MISSION_TYPE_NONE: + default: + warnx("ERROR: Mission type unsupported"); + break; } } -int -Navigator::advance_current_mission_item() +void +Navigator::start_rtl() { - reset_mission_item_reached(); - // warnx("advancing from %d to %d", _current_mission_index, _current_mission_index+1); + /* discard all mission item and insert RTL item */ + _mission_item_triplet.previous_valid = false; + _mission_item_triplet.current_valid = true; + _mission_item_triplet.next_valid = false; - /* ultimately this index will be == _mission_item_count and this flags the mission as completed */ - - /* if there is no more mission available, don't advance and return */ - if (!_mission_item_triplet.next_valid) { - // warnx("no next available"); - return ERROR; - } + _mission_item_triplet.current.lat = (double)_home_pos.lat / 1e7; + _mission_item_triplet.current.lon = (double)_home_pos.lon / 1e7; + _mission_item_triplet.current.altitude = (float)_home_pos.alt / 1e3f + _parameters.min_altitude; + _mission_item_triplet.current.yaw = 0.0f; + _mission_item_triplet.current.nav_cmd = NAV_CMD_RETURN_TO_LAUNCH; + _mission_item_triplet.current.loiter_direction = 1; + _mission_item_triplet.current.loiter_radius = _parameters.loiter_radius; // TODO: get rid of magic number + _mission_item_triplet.current.radius = 50.0f; // TODO: get rid of magic number + _mission_item_triplet.current.autocontinue = false; + _mission_item_triplet.current_valid = true; - /* copy current mission to previous item */ - memcpy(&_mission_item_triplet.previous, &_mission_item_triplet.current, sizeof(mission_item_s)); - _mission_item_triplet.previous_valid = _mission_item_triplet.current_valid; + publish_mission_item_triplet(); - /* copy the next to current */ - memcpy(&_mission_item_triplet.current, &_mission_item_triplet.next, sizeof(mission_item_s)); - _mission_item_triplet.current_valid = _mission_item_triplet.next_valid; + mavlink_log_info(_mavlink_fd, "[navigator] return to launch"); +} - int ret = ERROR; - if (onboard_mission_possible()) { - _current_onboard_mission_index++; - ret = set_waypoint_mission_item(DM_KEY_WAYPOINTS_ONBOARD, _current_onboard_mission_index + 1, &_mission_item_triplet.next); - } else if (mission_possible()) { - _current_mission_index++; - ret = set_waypoint_mission_item(DM_KEY_WAYPOINTS, _current_mission_index + 1, &_mission_item_triplet.next); - } else { - warnx("Error: nothing to advance"); - } +void +Navigator::start_rtl_loiter() +{ + mission_item_s home_position_mission_item; + home_position_mission_item.lat = (double)_home_pos.lat / 1e7; + home_position_mission_item.lon = (double)_home_pos.lon / 1e7; + home_position_mission_item.altitude = _home_pos.alt / 1e3f + _parameters.min_altitude; - if(ret == OK) { - _mission_item_triplet.next_valid = true; - } - else { - _mission_item_triplet.next_valid = false; - } + set_loiter_item(&home_position_mission_item); - publish_mission_item_triplet(); + mavlink_log_info(_mavlink_fd, "[navigator] loiter after RTL"); +} - return OK; +bool +Navigator::offboard_mission_available(unsigned relative_index) +{ + return _offboard_mission_item_count > _current_offboard_mission_index + relative_index; } +bool +Navigator::onboard_mission_available(unsigned relative_index) +{ + return _onboard_mission_item_count > _current_onboard_mission_index + relative_index && _parameters.onboard_mission_enabled; +} -void -Navigator::reset_mission_item_reached() +int +Navigator::set_mission_item(unsigned relative_index, struct mission_item_s *mission_item) { - /* reset all states */ - _waypoint_position_reached = false; - _waypoint_yaw_reached = false; - _time_first_inside_orbit = 0; + struct mission_item_s new_mission_item; + + /* try onboard mission first */ + if (onboard_mission_available(relative_index)) { + if (_mission_type != MISSION_TYPE_ONBOARD && relative_index == 1) { + relative_index--; + } + if (dm_read(DM_KEY_WAYPOINTS_ONBOARD, _current_onboard_mission_index + relative_index, &new_mission_item, sizeof(struct mission_item_s)) != sizeof(struct mission_item_s)) { + /* not supposed to happen unless the datamanager can't access the SD card, etc. */ + _mission_type = MISSION_TYPE_NONE; + return ERROR; + } + /* base the mission type on the current mission item, not on future ones */ + if (relative_index == 0) { + _mission_type = MISSION_TYPE_ONBOARD; + } + /* otherwise fallback to offboard */ + } else if (offboard_mission_available(relative_index)) { - _mission_item_reached = false; + warnx("fallback try offboard: %d / %d", _current_offboard_mission_index + relative_index, _offboard_mission_item_count); - _mission_result.mission_reached = false; - _mission_result.mission_index = 0; + if (_mission_type != MISSION_TYPE_OFFBOARD && relative_index == 1) { + relative_index--; + } + + if (dm_read(DM_KEY_WAYPOINTS_OFFBOARD, _current_offboard_mission_index + relative_index, &new_mission_item, sizeof(struct mission_item_s)) != sizeof(struct mission_item_s)) { + /* not supposed to happen unless the datamanager can't access the SD card, etc. */ + _mission_type = MISSION_TYPE_NONE; + warnx("failed"); + return ERROR; + } + /* base the mission type on the current mission item, not on future ones */ + if (relative_index == 0) { + _mission_type = MISSION_TYPE_OFFBOARD; + } + } else { + /* happens when no more mission items can be added as a next item */ + return ERROR; + } + + if (new_mission_item.nav_cmd == NAV_CMD_RETURN_TO_LAUNCH) { + /* if it is a RTL waypoint, append the home position */ + new_mission_item.lat = (double)_home_pos.lat / 1e7; + new_mission_item.lon = (double)_home_pos.lon / 1e7; + new_mission_item.altitude = (float)_home_pos.alt / 1e3f + _parameters.min_altitude; + new_mission_item.loiter_radius = _parameters.loiter_radius; // TODO: get rid of magic number + new_mission_item.radius = 50.0f; // TODO: get rid of magic number + } + + memcpy(mission_item, &new_mission_item, sizeof(struct mission_item_s)); + + return OK; } -void -Navigator::check_mission_item_reached() +bool +Navigator::mission_item_reached() { - /* don't check if mission item is already reached */ - if (_mission_item_reached) { - return; + /* only check if there is actually a mission item to check */ + if (!_mission_item_triplet.current_valid) { + return false; } - /* don't try to reach the landing mission, just stay in that mode */ + /* don't try to reach the landing mission, just stay in that mode, XXX maybe add another state for this */ if (_mission_item_triplet.current.nav_cmd == NAV_CMD_LAND) { - return; + return false; } + /* XXX TODO count turns */ + if ((_mission_item_triplet.current.nav_cmd == NAV_CMD_LOITER_TURN_COUNT || + _mission_item_triplet.current.nav_cmd == NAV_CMD_LOITER_TIME_LIMIT || + _mission_item_triplet.current.nav_cmd == NAV_CMD_LOITER_UNLIMITED) && + _mission_item_triplet.current.loiter_radius > 0.01f) { + + return false; + } + uint64_t now = hrt_absolute_time(); float orbit; @@ -1030,12 +1219,6 @@ Navigator::check_mission_item_reached() orbit = _mission_item_triplet.current.radius; - } else if ((_mission_item_triplet.current.nav_cmd == NAV_CMD_LOITER_TURN_COUNT || - _mission_item_triplet.current.nav_cmd == NAV_CMD_LOITER_TIME_LIMIT || - _mission_item_triplet.current.nav_cmd == NAV_CMD_LOITER_UNLIMITED) && - _mission_item_triplet.current.loiter_radius > 0.01f) { - - orbit = _mission_item_triplet.current.loiter_radius; } else { // XXX set default orbit via param @@ -1098,73 +1281,19 @@ Navigator::check_mission_item_reached() if ((now - _time_first_inside_orbit >= (uint64_t)_mission_item_triplet.current.time_inside * 1e6) || _mission_item_triplet.current.nav_cmd == NAV_CMD_TAKEOFF) { - _mission_item_reached = true; + _time_first_inside_orbit = 0; + _waypoint_yaw_reached = false; + _waypoint_position_reached = false; + return true; } } + return false; } void -Navigator::report_mission_reached() -{ - _mission_result.mission_reached = true; - _mission_result.mission_index = _current_mission_index; - - publish_mission_result(); -} - -void -Navigator::start_waypoint() +Navigator::set_loiter_item(struct mission_item_s *new_loiter_position) { - reset_mission_item_reached(); - - // if (_current_mission_index > 0) { - // set_waypoint_mission_item(_current_mission_index - 1, &_mission_item_triplet.previous); - // _mission_item_triplet.previous_valid = true; - // } else { - // _mission_item_triplet.previous_valid = false; - // } - _mission_item_triplet.previous_valid = false; - - int ret = ERROR; - - if (onboard_mission_possible()) { - set_waypoint_mission_item(DM_KEY_WAYPOINTS_ONBOARD, _current_onboard_mission_index, &_mission_item_triplet.current); - mavlink_log_info(_mavlink_fd, "[navigator] heading to onboard WP %d", _current_onboard_mission_index); - ret = set_waypoint_mission_item(DM_KEY_WAYPOINTS_ONBOARD, _current_onboard_mission_index + 1, &_mission_item_triplet.next); - } else if (mission_possible()) { - set_waypoint_mission_item(DM_KEY_WAYPOINTS, _current_mission_index, &_mission_item_triplet.current); - mavlink_log_info(_mavlink_fd, "[navigator] heading to WP %d", _current_mission_index); - ret = set_waypoint_mission_item(DM_KEY_WAYPOINTS, _current_mission_index + 1, &_mission_item_triplet.next); - } - - _mission_item_triplet.current_valid = true; - - // if (_mission_item_triplet.current.nav_cmd == NAV_CMD_LOITER_UNLIMITED) { - - // if the current mission is to loiter unlimited, don't bother about a next mission item - // _mission_item_triplet.next_valid = false; - // } else { - /* if we are not loitering yet, try to add the next mission item */ - // set_waypoint_mission_item(_current_mission_index + 1, &_mission_item_triplet.next); - // _mission_item_triplet.next_valid = true; - // } - - if(ret == OK) { - _mission_item_triplet.next_valid = true; - } - else { - _mission_item_triplet.next_valid = false; - } - - publish_mission_item_triplet(); -} - -void -Navigator::start_loiter(mission_item_s *new_loiter_position) -{ - //reset_mission_item_reached(); - _mission_item_triplet.previous_valid = false; _mission_item_triplet.current_valid = true; _mission_item_triplet.next_valid = false; @@ -1184,27 +1313,38 @@ Navigator::start_loiter(mission_item_s *new_loiter_position) } void -Navigator::start_rtl() +Navigator::publish_mission_item_triplet() { - reset_mission_item_reached(); + /* lazily publish the mission triplet only once available */ + if (_triplet_pub > 0) { + /* publish the mission triplet */ + orb_publish(ORB_ID(mission_item_triplet), _triplet_pub, &_mission_item_triplet); - /* discard all mission item and insert RTL item */ - _mission_item_triplet.previous_valid = false; - _mission_item_triplet.current_valid = true; - _mission_item_triplet.next_valid = false; + } else { + /* advertise and publish */ + _triplet_pub = orb_advertise(ORB_ID(mission_item_triplet), &_mission_item_triplet); + } +} - _mission_item_triplet.current.lat = (double)_home_pos.lat / 1e7; - _mission_item_triplet.current.lon = (double)_home_pos.lon / 1e7; - _mission_item_triplet.current.altitude = (float)_home_pos.alt / 1e3f + _parameters.min_altitude; - _mission_item_triplet.current.yaw = 0.0f; - _mission_item_triplet.current.nav_cmd = NAV_CMD_RETURN_TO_LAUNCH; - _mission_item_triplet.current.loiter_direction = 1; - _mission_item_triplet.current.loiter_radius = _parameters.loiter_radius; // TODO: get rid of magic number - _mission_item_triplet.current.radius = 50.0f; // TODO: get rid of magic number - _mission_item_triplet.current.autocontinue = false; - _mission_item_triplet.current_valid = true; - publish_mission_item_triplet(); +bool Navigator::cmp_mission_item_equivalent(const struct mission_item_s a, const struct mission_item_s b) { + if (fabsf(a.altitude_is_relative - b.altitude_is_relative) < FLT_EPSILON && + fabsf(a.lat - b.lat) < FLT_EPSILON && + fabsf(a.lon - b.lon) < FLT_EPSILON && + fabsf(a.altitude - b.altitude) < FLT_EPSILON && + fabsf(a.yaw - b.yaw) < FLT_EPSILON && + fabsf(a.loiter_radius - b.loiter_radius) < FLT_EPSILON && + fabsf(a.loiter_direction - b.loiter_direction) < FLT_EPSILON && + fabsf(a.nav_cmd - b.nav_cmd) < FLT_EPSILON && + fabsf(a.radius - b.radius) < FLT_EPSILON && + fabsf(a.time_inside - b.time_inside) < FLT_EPSILON && + fabsf(a.autocontinue - b.autocontinue) < FLT_EPSILON && + fabsf(a.index - b.index) < FLT_EPSILON) { + return true; + } else { + warnx("a.index %d, b.index %d", a.index, b.index); + return false; + } } @@ -1260,22 +1400,3 @@ int navigator_main(int argc, char *argv[]) return 0; } -bool Navigator::cmp_mission_item_equivalent(const struct mission_item_s a, const struct mission_item_s b) { - if (fabsf(a.altitude_is_relative - b.altitude_is_relative) < FLT_EPSILON && - fabsf(a.lat - b.lat) < FLT_EPSILON && - fabsf(a.lon - b.lon) < FLT_EPSILON && - fabsf(a.altitude - b.altitude) < FLT_EPSILON && - fabsf(a.yaw - b.yaw) < FLT_EPSILON && - fabsf(a.loiter_radius - b.loiter_radius) < FLT_EPSILON && - fabsf(a.loiter_direction - b.loiter_direction) < FLT_EPSILON && - fabsf(a.nav_cmd - b.nav_cmd) < FLT_EPSILON && - fabsf(a.radius - b.radius) < FLT_EPSILON && - fabsf(a.time_inside - b.time_inside) < FLT_EPSILON && - fabsf(a.autocontinue - b.autocontinue) < FLT_EPSILON && - fabsf(a.index - b.index) < FLT_EPSILON) { - return true; - } else { - warnx("a.index %d, b.index %d", a.index, b.index); - return false; - } -} diff --git a/src/modules/systemlib/state_table.h b/src/modules/systemlib/state_table.h new file mode 100644 index 000000000..f2709d29f --- /dev/null +++ b/src/modules/systemlib/state_table.h @@ -0,0 +1,75 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file state_table.h + * + * Finite-State-Machine helper class for state table + */ + +#ifndef __SYSTEMLIB_STATE_TABLE_H +#define __SYSTEMLIB_STATE_TABLE_H + +class StateTable +{ +public: + typedef void (StateTable::*Action)(); + struct Tran { + Action action; + unsigned nextState; + }; + + StateTable(Tran const *table, unsigned nStates, unsigned nSignals) + : myTable(table), myNsignals(nSignals), myNstates(nStates) {} + + #define NO_ACTION &StateTable::doNothing + #define ACTION(_target) static_cast<StateTable::Action>(_target) + + virtual ~StateTable() {} + + void dispatch(unsigned const sig) { + register Tran const *t = myTable + myState*myNsignals + sig; + (this->*(t->action))(); + + myState = t->nextState; + } + void doNothing() {} +protected: + unsigned myState; +private: + Tran const *myTable; + unsigned myNsignals; + unsigned myNstates; +}; + +#endif
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