parser_nmea.h

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#ifndef PARSER_NMEA_H
#define PARSER_NMEA_H

#define NMEA_MAX_LENGTH 100 

typedef enum nmea_sentence_id {
    NMEA_INVALID = -1,
    NMEA_UNKNOWN = 0,
    NMEA_SENTENCE_RMC,
    NMEA_SENTENCE_GGA,
    NMEA_SENTENCE_GSA,
    NMEA_SENTENCE_GLL,
    NMEA_SENTENCE_GST,
    NMEA_SENTENCE_GSV,
    NMEA_SENTENCE_VTG
};

typedef struct nmea_sentence_rmc {
    int valid;
    float latitude;
    float longitude;
    float speed;
    float heading;
} nmea_sentence_rmc;

typedef struct nmea_sentence_gga {
    float latitude;
    float longitude;
    int fix_quality;
    int satellites_tracked;
    float hdop;
    float altitude;
    char altitude_units;
    float height;
    char height_units;
    int dgps_age;
} nmea_sentence_gga;

int hex2int(char c);

int nmea_scan(const char *sentence, const char *format, ...);

int nmea_isfield(char c);

enum nmea_sentence_id nmea_sentence_id(char *sentence);

 int nmea_check(const char *sentence, int strict);

int nmea_parse_rmc(nmea_sentence_rmc *frame, const char *sentence);

int nmea_parse_gga(nmea_sentence_gga *frame, const char *sentence);
// int nmea_parse_gsa(nmea_sentence_gsa *frame, const char *sentence);
// int nmea_parse_gll(nmea_sentence_gll *frame, const char *sentence);
// int nmea_parse_gst(nmea_sentence_gst *frame, const char *sentence);
// int nmea_parse_gsv(nmea_sentence_gsv *frame, const char *sentence);
// int nmea_parse_vtg(nmea_sentence_vtg *frame, const char *sentence);

#endif