ardupilot/libraries/GCS_MAVLink/GCS_Fence.cpp

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#include "GCS.h"
#include <AC_Fence/AC_Fence.h>
MAV_RESULT GCS_MAVLINK::handle_command_do_fence_enable(const mavlink_command_long_t &packet)
{
AC_Fence *fence = AP::fence();
if (fence == nullptr) {
return MAV_RESULT_UNSUPPORTED;
}
switch ((uint16_t)packet.param1) {
case 0:
fence->enable(false);
return MAV_RESULT_ACCEPTED;
case 1:
fence->enable(true);
return MAV_RESULT_ACCEPTED;
default:
return MAV_RESULT_FAILED;
}
}
void GCS_MAVLINK::handle_fence_message(mavlink_message_t *msg)
{
AC_Fence *fence = AP::fence();
if (fence == nullptr) {
return;
}
// send or receive fence points with GCS
switch (msg->msgid) {
case MAVLINK_MSG_ID_FENCE_POINT:
case MAVLINK_MSG_ID_FENCE_FETCH_POINT:
fence->handle_msg(*this, msg);
break;
default:
#if CONFIG_HAL_BOARD == HAL_BOARD_SITL
AP_HAL::panic("Unhandled common fence message");
#endif
break;
}
}
// fence_send_mavlink_status - send fence status to ground station
void GCS_MAVLINK::send_fence_status() const
{
const AC_Fence *fence = AP::fence();
if (fence == nullptr) {
return;
}
if (!fence->enabled()) {
return;
}
// traslate fence library breach types to mavlink breach types
uint8_t mavlink_breach_type = FENCE_BREACH_NONE;
const uint8_t breaches = fence->get_breaches();
if ((breaches & AC_FENCE_TYPE_ALT_MAX) != 0) {
mavlink_breach_type = FENCE_BREACH_MAXALT;
}
if ((breaches & (AC_FENCE_TYPE_CIRCLE | AC_FENCE_TYPE_POLYGON)) != 0) {
mavlink_breach_type = FENCE_BREACH_BOUNDARY;
}
// send status
mavlink_msg_fence_status_send(chan,
static_cast<int8_t>(fence->get_breaches() != 0),
fence->get_breach_count(),
mavlink_breach_type,
fence->get_breach_time());
}