* Copyright 2009 Develer S.r.l. (http://www.develer.com/)
*
* -->
- * \brief NMEA Parser
+ * \brief NMEA Parser.
*
* \author Daniele Basile <asterix@develer.com>
*
#include <net/nmeap/inc/nmeap.h>
-#include <kern/kfile.h>
+#include <io/kfile.h>
#include <time.h>
#define NMEA_GPGSV 4 // GSV MESSAGE ID
// Standart type to rappresent fiels.
-typedef uint32_t udegree_t; // Micro degrees
-typedef uint32_t mdegree_t; // Milli degrees
-typedef uint16_t degree_t; // Degrees
+typedef int32_t udegree_t; // Micro degrees
+typedef int32_t mdegree_t; // Milli degrees
+typedef int16_t degree_t; // Degrees
/**
* Global Positioning System Fix Data.
* Extracted data from a GGA message
*
- * Note: time membert containt the second elapsed from 00:00:00 1/1/1970,
- * becouse from nmea sentence we read only the time of UTC position, we
- * not have any reference of date (day, month and year) so time is refered to
+ * Note: time member contains the seconds elapsed from 00:00:00 1/1/1970,
+ * because from nmea sentence we read only the time of UTC position, we
+ * have not any reference of date (day, month and year) so time is referred to
* the start of unix time.
*/
typedef struct NmeaGga
{
udegree_t latitude; /* Latitude (micro degree) */
udegree_t longitude; /* Longitude (micro degree) */
- uint16_t altitude; /* Altitude (Meter) */
+ int32_t altitude; /* Altitude (Meter) */
time_t time; /* UTC of position (Unix time) */
uint16_t satellites; /* Satellites are in view */
uint16_t quality; /* Fix Quality: 0 = Invalid; 1 = GPS fix; 2 = DGPS fix; */
uint16_t hdop; /* Relative accuracy of horizontal position (hdop * 10) */
- uint16_t geoid; /* Height of geoid above WGS84 ellipsoid (Meter) */
+ int16_t geoid; /* Height of geoid above WGS84 ellipsoid (Meter) */
} NmeaGga;
/**
* Recommended minimum specific GPS/Transit data.
* Extracted data from an RMC message
*
- * Note: RMC sentece contain also date stamp so, time contain real second elapsed
+ * Note: RMC sentences contain also date stamp so, time contains real seconds elapsed
* from 0:00:00 1/1/1970.
*/
typedef struct NmeaRmc
/**
* Extracted data from an gsv message
*/
+struct SvInfo
+{
+ uint16_t sv_prn; /* SV PRN number */
+ degree_t elevation; /* Elevation in degrees, 90 maximum */
+ degree_t azimut; /* Azimuth, degrees from true north, 000 to 359 */
+ uint16_t snr; /* SNR, 00-99 dB (null when not tracking) */
+};
+
typedef struct NmeaGsv
{
- uint16_t tot_message;
- uint16_t message_num;
- uint16_t tot_svv;
- uint16_t sv_prn;
- degree_t elevation;
- degree_t azimut;
- uint16_t snr;
- uint16_t sv_prn2;
- degree_t elevation2;
- degree_t azimut2;
- uint16_t snr2;
- uint16_t sv_prn3;
- degree_t elevation3;
- degree_t azimut3;
- uint16_t snr3;
- uint16_t sv_prn4;
- degree_t elevation4;
- degree_t azimut4;
- uint16_t snr4;
+ uint16_t tot_message; /* Total number of messages of this type in this cycle */
+ uint16_t message_num; /* Message number */
+ uint16_t tot_svv; /* Total number of SVs in view */
+ struct SvInfo info[4]; /* Stanrd gsv nmea report up to 4 sv info */
} NmeaGsv;
void nmea_poll(nmeap_context_t *context, KFile *channel);
int nmea_gprmc(nmeap_context_t *context, nmeap_sentence_t *sentence);
int nmea_gpgga(nmeap_context_t *context, nmeap_sentence_t *sentence);
+// Example of callout
+void gpgga_callout(nmeap_context_t *context, void *data, void *user_data);
+void gprmc_callout(nmeap_context_t *context, void *data, void *user_data);
+void gpgsv_callout(nmeap_context_t *context, void *data, void *user_data);
+void gpvtg_callout(nmeap_context_t *context, void *data, void *user_data);
+
int nmea_testSetup(void);
int nmea_testTearDown(void);
int nmea_testRun(void);