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Diffstat (limited to 'apps/gps/nmealib/nmea/sentence.h')
| -rw-r--r-- | apps/gps/nmealib/nmea/sentence.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/apps/gps/nmealib/nmea/sentence.h b/apps/gps/nmealib/nmea/sentence.h new file mode 100644 index 000000000..2aa975c71 --- /dev/null +++ b/apps/gps/nmealib/nmea/sentence.h @@ -0,0 +1,128 @@ +/* + * + * NMEA library + * URL: http://nmea.sourceforge.net + * Author: Tim (xtimor@gmail.com) + * Licence: http://www.gnu.org/licenses/lgpl.html + * $Id: sentence.h 17 2008-03-11 11:56:11Z xtimor $ + * + */ + +/*! \file */ + +#ifndef __NMEA_SENTENCE_H__ +#define __NMEA_SENTENCE_H__ + +#include "info.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * NMEA packets type which parsed and generated by library + */ +enum nmeaPACKTYPE +{ + GPNON = 0x0000, /**< Unknown packet type. */ + GPGGA = 0x0001, /**< GGA - Essential fix data which provide 3D location and accuracy data. */ + GPGSA = 0x0002, /**< GSA - GPS receiver operating mode, SVs used for navigation, and DOP values. */ + GPGSV = 0x0004, /**< GSV - Number of SVs in view, PRN numbers, elevation, azimuth & SNR values. */ + GPRMC = 0x0008, /**< RMC - Recommended Minimum Specific GPS/TRANSIT Data. */ + GPVTG = 0x0010 /**< VTG - Actual track made good and speed over ground. */ +}; + +/** + * GGA packet information structure (Global Positioning System Fix Data) + */ +typedef struct _nmeaGPGGA +{ + nmeaTIME utc; /**< UTC of position (just time) */ + float lat; /**< Latitude in NDEG - [degree][min].[sec/60] */ + char ns; /**< [N]orth or [S]outh */ + float lon; /**< Longitude in NDEG - [degree][min].[sec/60] */ + char ew; /**< [E]ast or [W]est */ + int sig; /**< GPS quality indicator (0 = Invalid; 1 = Fix; 2 = Differential, 3 = Sensitive) */ + int satinuse; /**< Number of satellites in use (not those in view) */ + float HDOP; /**< Horizontal dilution of precision */ + float elv; /**< Antenna altitude above/below mean sea level (geoid) */ + char elv_units; /**< [M]eters (Antenna height unit) */ + float diff; /**< Geoidal separation (Diff. between WGS-84 earth ellipsoid and mean sea level. '-' = geoid is below WGS-84 ellipsoid) */ + char diff_units; /**< [M]eters (Units of geoidal separation) */ + float dgps_age; /**< Time in seconds since last DGPS update */ + int dgps_sid; /**< DGPS station ID number */ + +} nmeaGPGGA; + +/** + * GSA packet information structure (Satellite status) + */ +typedef struct _nmeaGPGSA +{ + char fix_mode; /**< Mode (M = Manual, forced to operate in 2D or 3D; A = Automatic, 3D/2D) */ + int fix_type; /**< Type, used for navigation (1 = Fix not available; 2 = 2D; 3 = 3D) */ + int sat_prn[NMEA_MAXSAT]; /**< PRNs of satellites used in position fix (null for unused fields) */ + float PDOP; /**< Dilution of precision */ + float HDOP; /**< Horizontal dilution of precision */ + float VDOP; /**< Vertical dilution of precision */ + +} nmeaGPGSA; + +/** + * GSV packet information structure (Satellites in view) + */ +typedef struct _nmeaGPGSV +{ + int pack_count; /**< Total number of messages of this type in this cycle */ + int pack_index; /**< Message number */ + int sat_count; /**< Total number of satellites in view */ + nmeaSATELLITE sat_data[NMEA_SATINPACK]; + +} nmeaGPGSV; + +/** + * RMC packet information structure (Recommended Minimum sentence C) + */ +typedef struct _nmeaGPRMC +{ + nmeaTIME utc; /**< UTC of position */ + char status; /**< Status (A = active or V = void) */ + float lat; /**< Latitude in NDEG - [degree][min].[sec/60] */ + char ns; /**< [N]orth or [S]outh */ + float lon; /**< Longitude in NDEG - [degree][min].[sec/60] */ + char ew; /**< [E]ast or [W]est */ + float speed; /**< Speed over the ground in knots */ + float direction; /**< Track angle in degrees True */ + float declination; /**< Magnetic variation degrees (Easterly var. subtracts from true course) */ + char declin_ew; /**< [E]ast or [W]est */ + char mode; /**< Mode indicator of fix type (A = autonomous, D = differential, E = estimated, N = not valid, S = simulator) */ + +} nmeaGPRMC; + +/** + * VTG packet information structure (Track made good and ground speed) + */ +typedef struct _nmeaGPVTG +{ + float dir; /**< True track made good (degrees) */ + char dir_t; /**< Fixed text 'T' indicates that track made good is relative to true north */ + float dec; /**< Magnetic track made good */ + char dec_m; /**< Fixed text 'M' */ + float spn; /**< Ground speed, knots */ + char spn_n; /**< Fixed text 'N' indicates that speed over ground is in knots */ + float spk; /**< Ground speed, kilometers per hour */ + char spk_k; /**< Fixed text 'K' indicates that speed over ground is in kilometers/hour */ + +} nmeaGPVTG; + +void nmea_zero_GPGGA(nmeaGPGGA *pack); +void nmea_zero_GPGSA(nmeaGPGSA *pack); +void nmea_zero_GPGSV(nmeaGPGSV *pack); +void nmea_zero_GPRMC(nmeaGPRMC *pack); +void nmea_zero_GPVTG(nmeaGPVTG *pack); + +#ifdef __cplusplus +} +#endif + +#endif /* __NMEA_SENTENCE_H__ */ |