File content as of revision 18:3f8a8f6e3cc1:

#ifndef __UBLOX6_H
#define __UBLOX6_H

/** uBlox GPS UBX Protocol Reader
 * Parses uBlox GPS binary protocol
 * 
 * @author Wayne Holder; Ported to mbed by Michael Shimniok
 */
#include "mbed.h"

class Ublox6 {
public:
    // TODO 3 convert this to time units
    static const int lag=40;        // number of updater steps by which gps output lags reality

    Ublox6();

    /**
     * UBX protocol parser (Wayne Holder)
     * @param cc is the character to parse
     * @note stores parsed gps data in member variables and sets _available
     * to true to indicate gps data is waiting.
     */    
    void parse(unsigned char cc);

    void read(double& lat, double& lon, float& course, float& speed, float& hdop, int& svcount);

    /**
     * get latitude
     */    
    double latitude(void);   
    
    /**
     * get longitude
     */
    double longitude(void);

    /**
     * Get Horizontal Dilution of Precision
     * @return float horizontal dilution of precision
     */
    float hdop(void);

    /**
     * get count of active satellites
     */
    int sat_count(void);

    /**
     * get speed in m/s
     */    
    float speed_mps(void);
    
    /**
     * get heading in degrees
     */
    float heading_deg(void);
    
    /**
     * determine if data is available to be used
     */
    bool available(void);
    
    /**
     * reset the data available flag
     */
    void reset_available(void);

private:
    typedef struct {
        double lat;
        double lon;
        float course;
        float speed;
        float hdop;
        int svcount;
    } gps_data_t;

    gps_data_t tmp;
    gps_data_t latest;

    int _ready;             // is data ready to be copied?
    bool _available;        // 

    /*
    float _latitude;        // temp storage, latitude
    float _longitude;       // temp storage, longitude
    float _hdop;            // horiz dilution of precision
    float _course_deg;      // course in degrees
    float _speed_mps;       // speed in m/s
    int _svcount;           // space vehicle (satellite) count
    */
};

#endif