ardupilot/libraries/AP_GPS/GPS.cpp

// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: t -*-

#include "GPS.h"
#include "WProgram.h"

void
GPS::update(void)
{
    bool	result;

    // call the GPS driver to process incoming data
    result = read();

    // if we did not get a message, and the idle timer has expired, re-init
    if (!result) {
        if ((millis() - _idleTimer) > idleTimeout) {
            _status = NO_GPS;

            init();
            // reset the idle timer
            _idleTimer = millis();
        }
    } else {
        // we got a message, update our status correspondingly
        _status = fix ? GPS_OK : NO_FIX;

        valid_read = true;
        new_data = true;

        // reset the idle timer
        _idleTimer = millis();
    }
}

void
GPS::setHIL(long _time, float _latitude, float _longitude, float _altitude,
            float _ground_speed, float _ground_course, float _speed_3d, uint8_t _num_sats)
{
}

// XXX this is probably the wrong way to do it, too
void
GPS::_error(const char *msg)
{
    Serial.println(msg);
}