#include "Sub.h" // Code to integrate AC_Fence library with main ArduSub code #if AP_FENCE_ENABLED // fence_check - ask fence library to check for breaches and initiate the response // async fence checking io callback at 1Khz void Sub::fence_checks_async() { const uint32_t now = AP_HAL::millis(); // ignore any fence activity when not armed if (!motors.armed()) { return; } if (!AP_HAL::timeout_expired(fence_breaches.last_check_ms, now, 333U)) { // 3Hz update rate return; } fence_breaches.last_check_ms = now; const uint8_t orig_breaches = fence.get_breaches(); // check for new breaches; new_breaches is bitmask of fence types breached const uint8_t new_breaches = fence.check(); // if the user wants some kind of response and motors are armed if (new_breaches) { if (fence.get_action() != AC_Fence::Action::REPORT_ONLY) { // // // disarm immediately if we think we are on the ground or in a manual flight mode with zero throttle // // don't disarm if the high-altitude fence has been broken because it's likely the user has pulled their throttle to zero to bring it down // if (ap.land_complete || (mode_has_manual_throttle(control_mode) && ap.throttle_zero && !failsafe.manual_control && ((fence.get_breaches() & AC_FENCE_TYPE_ALT_MAX)== 0))){ // init_disarm_motors(); // }else{ // // if we are within 100m of the fence, RTL // if (fence.get_breach_distance(new_breaches) <= AC_FENCE_GIVE_UP_DISTANCE) { // if (!set_mode(RTL, MODE_REASON_FENCE_BREACH)) { // set_mode(LAND, MODE_REASON_FENCE_BREACH); // } // }else{ // // if more than 100m outside the fence just force a land // set_mode(LAND, MODE_REASON_FENCE_BREACH); // } // } } LOGGER_WRITE_ERROR(LogErrorSubsystem::FAILSAFE_FENCE, LogErrorCode(fence_breaches.new_breaches)); } else if (orig_breaches) { // record clearing of breach LOGGER_WRITE_ERROR(LogErrorSubsystem::FAILSAFE_FENCE, LogErrorCode::ERROR_RESOLVED); } } #endif