// Compute the GPS location using decimal scale
extern void gps_location(loc_t *coord) {
uint8_t status = _EMPTY;
while(status != _COMPLETED) {
gpgga_t gpgga;
gprmc_t gprmc;
char buffer[256];
serial_readln(buffer, 256);
switch (nmea_get_message_type(buffer)) {
case NMEA_GPGGA:
nmea_parse_gpgga(buffer, &gpgga);
gps_convert_deg_to_dec(&(gpgga.latitude), gpgga.lat, &(gpgga.longitude), gpgga.lon);
coord->latitude = gpgga.latitude;
coord->longitude = gpgga.longitude;
coord->altitude = gpgga.altitude;
status |= NMEA_GPGGA;
break;
case NMEA_GPRMC:
nmea_parse_gprmc(buffer, &gprmc);
coord->speed = gprmc.speed;
coord->course = gprmc.course;
status |= NMEA_GPRMC;
break;
}
}
}
void *serial_thread(void *queue_ptr) {
char raw_packet[254] = "\0";
struct rp_entry *rpe = NULL;
// char buf[255];
log_debug("starting serial thread");
while (1) {
if (serial_readln(raw_packet) == 0) {
if (!(rpe = (struct rp_entry *)malloc(sizeof(struct rp_entry)))) {
log_debug("serial_thread: malloc failed");
return NULL;
}
// (void)snprintf(buf, sizeof(buf), "received: %s", raw_packet);
// log_debug(buf);
rpe->payload = raw_packet;
pthread_mutex_lock(&rp_mutex);
SIMPLEQ_INSERT_TAIL(&rp_head, rpe, rp_entries);
pthread_cond_signal(&rp_cond);
pthread_mutex_unlock(&rp_mutex);
}
}
return 0;
}
// Compute the GPS location using decimal scale
extern void gps_location(loc_t *coord) {
uint8_t status = _EMPTY;
while(status != _COMPLETED) {
gpgga_t gpgga;
gprmc_t gprmc;
char buffer[1000];
//mraa_uart_read(uart, buffer, 256);
serial_readln(buffer, 256);
//printf("%s\n", buffer);
//printf("%d\n",nmea_get_message_type(buffer));
switch (nmea_get_message_type(buffer)) {
case NMEA_GPGGA:
nmea_parse_gpgga(buffer, &gpgga);
//printf("%d\n", gpgga.latitude);
gps_convert_deg_to_dec(&(gpgga.latitude), gpgga.lat, &(gpgga.longitude), gpgga.lon);
// printf("%d\n", gpgga.latitude);
coord->latitude = gpgga.latitude;
coord->longitude = gpgga.longitude;
coord->altitude = gpgga.altitude;
status |= NMEA_GPGGA;
break;
case NMEA_GPRMC:
nmea_parse_gprmc(buffer, &gprmc);
coord->speed = gprmc.speed;
coord->course = gprmc.course;
//printf("%dspeed\n", gprmc.speed);
//coord->magnetic = gprmc.magnetic;
//coord->mag = gprmc.mag;
//printf("%d\n", gprmc.magnetic);
status |= NMEA_GPRMC;
break;
}
}
}
