File content as of revision 75:0ed9157d3bb3:

#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdarg.h>

#include "log.h"
#include "nmea.h"
#include "pps.h"
#include "clkgov.h"

bool GpsTrace   = true;
bool GpsVerbose = false;

void GpsLog(const char *fmt, ...)
{
    if (!GpsTrace) return;
    va_list argptr;
    va_start(argptr, fmt);
    LogTimeF("GPS %04d ", PpsMsSinceLastPulse);
    LogV(fmt, argptr);
    va_end(argptr);
}
void GpsLogVerbose(const char *fmt, ...)
{
    if (!GpsTrace || !GpsVerbose) return;
    va_list argptr;
    va_start(argptr, fmt);
    LogTimeF("GPS %04d ", PpsMsSinceLastPulse);
    LogV(fmt, argptr);
    va_end(argptr);
}

void GpsHadPps()
{
    NmeaTimeAlign();
    if (PpsIsStable() && NmeaFixIsStable() && NmeaModuleIsReady())
    {
        if (NmeaTimeIsStable()) ClkGovSyncPpsN(NmeaTime); //Synchronise to Nmea time
        else                    ClkGovSyncPpsZ();         //Synchronise to nearest second of existing clock time
    }
}

static void mainConfidence()
{
    ClkGovIsReceivingTime = PpsIsStable() && NmeaFixIsStable() && NmeaModuleIsReady(); //Tell the clock gov module if confident
    static bool wasStable = false;
    if (ClkGovIsReceivingTime && !wasStable) GpsLog("PPS and NMEA are stable - sync enabled\r\n");
    wasStable = ClkGovIsReceivingTime;
}

void GpsMain()
{
    NmeaMain();
    PpsMain();
    NmeaTimeAllowMessages = PpsIsStable();
    mainConfidence();
}
void GpsInit()
{
    NmeaInit();
    PpsInit();
}