ardupilot/libraries/AP_ADSB/sagetech-sdk/sgEncodeFlightId.c

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/**
* @copyright Copyright (c) 2021 Sagetech, Inc. All rights reserved.
*
* @file sgEncodeFlightId.c
* @author Jacob.Garrison
*
* @date Feb 25, 2021
*
*/
#include <ctype.h>
#include <stdbool.h>
#include <stdlib.h>
#include "sg.h"
#include "sgUtil.h"
#define SG_PAYLOAD_LEN_FLIGHT SG_MSG_LEN_FLIGHT - 5 /// the payload length.
#define PBASE 4 /// the payload offset.
#define OFFSET_ID 0 /// the flight id offset in the payload.
#define OFFSET_RSVD 8 /// the reserved field offset in the payload.
#define ID_LEN 8 /// the length of the flight identification field.
/*
* Documented in the header file.
*/
bool sgEncodeFlightId(uint8_t *buffer, sg_flightid_t *id, uint8_t msgId)
{
// populate header
buffer[0] = SG_MSG_START_BYTE;
buffer[1] = SG_MSG_TYPE_HOST_FLIGHT;
buffer[2] = msgId;
buffer[3] = SG_PAYLOAD_LEN_FLIGHT;
// populate flight identification
charArray2Buf(&buffer[PBASE + OFFSET_ID], id->flightId, ID_LEN);
// populate reserved field
uint322Buf(&buffer[PBASE + OFFSET_RSVD], 0);
// populate checksum
appendChecksum(buffer, SG_MSG_LEN_FLIGHT);
return true;
}