NMEA_parse.h

00001 /*
00002  * Copyright (c) 2011 Toshihisa T
00003  * Released under the MIT License: http://mbed.org/license/mit
00004  */
00005 
00006 #ifndef _NMEA_PARSE_H
00007 #define _NMEA_PARSE_H
00008 #ifdef __cplusplus
00009 extern "C" {
00010 #endif
00011 
00012 #define    LIBNMEA_PARSE_NONE        (0)
00013 #define    LIBNMEA_PARSE_SUMOK        (10)
00014 #define    LIBNMEA_PARSE_COMPLETE    (100)
00015 
00016 #define    LIBNMEA_NUMSOFARRAY(array)    (sizeof((array))/sizeof((array)[0]))
00017 
00018 typedef double libNMEA_realnum_t;
00019 typedef long   libNMEA_intnum_t;
00020 
00021 typedef struct {
00022 //    unsigned char isValid;
00023     unsigned char active;         /* '0' or '1' = Fix not available,'2' = 2D,'3' = 3D */
00024     unsigned char positioning;    /* 'A' = 単独測位，D = DGPS，N = 無効 */
00025 } libNMEA_gps_status_t;
00026 
00027 typedef struct {
00028     unsigned long res1:1;
00029     unsigned long year:12;
00030     unsigned long mon:4;
00031     unsigned long day:6;
00032     unsigned long res2:9;
00033 } libNMEA_gps_date_t;
00034 
00035 typedef struct {
00036     unsigned long res:1;
00037     unsigned long hour:5;
00038     unsigned long min:6;
00039     unsigned long sec:6;
00040     unsigned long msec:14;
00041 } libNMEA_gps_time_t;
00042 
00043 typedef struct {
00044 //    unsigned char isValid;
00045     unsigned char unit;
00046     libNMEA_realnum_t deg;
00047 } libNMEA_gps_deg_t;
00048 
00049 typedef struct {
00050     unsigned char lat_unit;    /* 'N'(Nouth) or 'S'(South) */
00051     unsigned char lon_unit;    /* 'W'(West) or 'E'(East) */
00052     libNMEA_realnum_t latitude;
00053     libNMEA_realnum_t longitude;
00054 } libNMEA_gps_latlon_t;
00055 
00056 typedef struct {
00057 //    unsigned char isValid;
00058     libNMEA_realnum_t ground;
00059 } libNMEA_gps_speed_t;
00060 
00061 typedef struct {
00062 //    unsigned char isValid;
00063     libNMEA_realnum_t dop;
00064 } libNMEA_gps_dop_t;
00065 
00066 typedef struct {
00067     libNMEA_gps_deg_t trueNorth;
00068     libNMEA_gps_deg_t magnetic;
00069     libNMEA_gps_deg_t mag_dec;
00070 } libNMEA_gps_direction_t;
00071 
00072 typedef struct {
00073     libNMEA_gps_dop_t    h;
00074     libNMEA_gps_dop_t    v;
00075     libNMEA_gps_dop_t    p;
00076 } libNMEA_gps_accuracy_t;
00077 
00078 typedef struct {
00079     unsigned long status:1;    /* これが１ならば，GPS のデータを信用する */
00080     unsigned long active:1;
00081     unsigned long positioning:1;
00082     unsigned long date:1;
00083     unsigned long timeRMC:1;
00084     unsigned long timeZDA:1;
00085     unsigned long latitude:1;
00086     unsigned long longitude:1;
00087     unsigned long speed:1;
00088     unsigned long direction:1;
00089     unsigned long accuracy_hdop:1;
00090     unsigned long accuracy_vdop:1;
00091     unsigned long accuracy_pdop:1;
00092     unsigned long res:19;
00093 } libNMEA_gps_valid_t;
00094 
00095 typedef struct {
00096     libNMEA_gps_valid_t     valid;
00097     libNMEA_gps_status_t    status;
00098     libNMEA_gps_date_t      date;
00099     libNMEA_gps_time_t      time;
00100     libNMEA_gps_latlon_t    latlon;
00101     libNMEA_gps_speed_t     speed;
00102     libNMEA_gps_direction_t direction;
00103     libNMEA_gps_accuracy_t  accuracy;
00104 } libNMEA_gps_info_t;
00105 
00106 typedef struct {
00107     short cjobst;
00108     unsigned char raw[82+2];
00109     short rawLength;
00110     unsigned char sum;
00111     unsigned char sumwk;
00112     short argc;
00113     short argv[31];     /* NMEA センテンスで処理できる最大トークン数．メモリを節約したいのでポインタではなく先頭からのオフセットにしている． */
00114 } libNMEA_data_t;
00115 
00116 extern short libNMEA_Parse1Char(unsigned char c,libNMEA_data_t *buffer);
00117 short libNMEA_Parse1Line(libNMEA_data_t *buffer,libNMEA_gps_info_t *GPSinfo);
00118 
00119 #ifdef __cplusplus
00120 }
00121 #endif
00122 
00123 #endif /* _NMEA_PARSE_H */