GPSSat.h

/*NB_REVISION*/
 
/*NB_COPYRIGHT*/
 
#pragma once
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "GPSEnum.h"
 
#define PI 3.14159265
 
class GPSSat
{
   public:
    GPSSat() : prn(0), elevation(0), azimuth(0), snr(0), lastPrnUpdateEpoch(0), lastDataUpdateEpoch(0) {}
 
    void getXYvalues(int size, int *buffer);
    void reset();
 
    int prn;
    int elevation;
    int azimuth;
    int snr;
    uint32_t lastPrnUpdateEpoch;    // When PRN was last set (from GSA)
    uint32_t lastDataUpdateEpoch;   // When elevation/azimuth/SNR were last updated (from GSV)
};
 
class GPSSatTracker
{
   public:
    static const int MAX_CONSTELLATIONS = (int)GPSSatelliteType::CONSTELLATION_COUNT;
    static const int MAX_USED_SATS = 12;
 
    GPSSat usedSats[MAX_CONSTELLATIONS][MAX_USED_SATS];
 
    void secondUpdater(uint32_t epochTime);
 
    void invalidateUnusedSatellites(uint32_t epochTime);
    void updateUsedSatellites(GPSSatelliteType constellation, int *satelliteList);
 
   private:
    uint32_t currentEpoch;
    uint32_t lastUpdateEpoch[MAX_CONSTELLATIONS];
};