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/*
/ _____) _ | |
( (____ _____ ____ _| |_ _____ ____| |__
\____ \| ___ | (_ _) ___ |/ ___) _ \
_____) ) ____| | | || |_| ____( (___| | | |
(______/|_____)_|_|_| \__)_____)\____)_| |_|
(C)2013 Semtech-Cycleo
Description:
Minimum test program for the loragw_gps 'library'
License: Revised BSD License, see LICENSE.TXT file include in the project
Maintainer: Michael Coracin
*/
/* -------------------------------------------------------------------------- */
/* --- DEPENDANCIES --------------------------------------------------------- */
/* fix an issue between POSIX and C99 */
#if __STDC_VERSION__ >= 199901L
#define _XOPEN_SOURCE 600
#else
#define _XOPEN_SOURCE 500
#endif
#include <stdint.h> /* C99 types */
#include <stdbool.h> /* bool type */
#include <stdio.h> /* printf */
#include <string.h> /* memset */
#include <signal.h> /* sigaction */
#include <stdlib.h> /* exit */
#include <unistd.h> /* read */
#include <gps.h>
#include <gpsd.h>
#include "loragw_hal.h"
#include "loragw_gps.h"
#include "loragw_aux.h"
/* -------------------------------------------------------------------------- */
/* --- PRIVATE VARIABLES ---------------------------------------------------- */
static int exit_sig = 0; /* 1 -> application terminates cleanly (shut down hardware, close open files, etc) */
static int quit_sig = 0; /* 1 -> application terminates without shutting down the hardware */
static struct gps_data_t gpsdata;
static struct fixsource_t source;
struct tref ppm_ref;
/* -------------------------------------------------------------------------- */
/* --- PRIVATE FUNCTIONS DECLARATION ---------------------------------------- */
static void sig_handler(int sigio);
/* -------------------------------------------------------------------------- */
/* --- PRIVATE FUNCTIONS DEFINITION ----------------------------------------- */
static void sig_handler(int sigio) {
if (sigio == SIGQUIT) {
quit_sig = 1;;
} else if ((sigio == SIGINT) || (sigio == SIGTERM)) {
exit_sig = 1;
}
}
/* -------------------------------------------------------------------------- */
/* --- MAIN FUNCTION -------------------------------------------------------- */
int main()
{
struct sigaction sigact; /* SIGQUIT&SIGINT&SIGTERM signal handling */
int i;
/* concentrator variables */
struct lgw_conf_board_s boardconf;
struct lgw_conf_rxrf_s rfconf;
/* serial variables */
char serial_buff[128]; /* buffer to receive GPS data */
/* NMEA/UBX variables */
static struct tref time_reference_gps; /* time reference used for GPS <-> timestamp conversion */
/* configure signal handling */
sigemptyset(&sigact.sa_mask);
sigact.sa_flags = 0;
sigact.sa_handler = sig_handler;
sigaction(SIGQUIT, &sigact, NULL);
sigaction(SIGINT, &sigact, NULL);
sigaction(SIGTERM, &sigact, NULL);
/* Intro message and library information */
printf("Beginning of test for loragw_gps.c\n");
printf("*** Library version information ***\n%s\n***\n", lgw_version_info());
/* Open and configure GPS */
i = lgw_gps_enable(&gpsdata, &source);
if (i != LGW_GPS_SUCCESS) {
printf("ERROR: IMPOSSIBLE TO ENABLE GPS\n");
exit(EXIT_FAILURE);
}
/* start concentrator (default conf for IoT SK) */
/* board config */
memset(&boardconf, 0, sizeof(boardconf));
boardconf.lorawan_public = true;
boardconf.clksrc = 1;
lgw_board_setconf(boardconf);
/* RF config */
memset(&rfconf, 0, sizeof(rfconf));
rfconf.enable = true;
rfconf.freq_hz = 868000000;
rfconf.rssi_offset = 0.0;
rfconf.type = LGW_RADIO_TYPE_SX1257;
rfconf.tx_enable = true;
lgw_rxrf_setconf(0, rfconf);
lgw_start();
/* initialize some variables before loop */
memset(serial_buff, 0, sizeof serial_buff);
memset(&ppm_ref, 0, sizeof ppm_ref);
/* loop until user action */
while ((quit_sig != 1) && (exit_sig != 1)) {
wait_ms(100);
int r = gps_read(&gpsdata, 0, 0);
if (r!= -1 && (gpsdata.status != STATUS_NO_FIX) &&
(gpsdata.fix.mode == MODE_2D || gpsdata.fix.mode == MODE_3D) &&
!isnan(gpsdata.fix.latitude) &&
!isnan(gpsdata.fix.longitude)) {
uint32_t trig_tstamp; /* concentrator timestamp associated with PPM pulse */
i = lgw_get_trigcnt(&trig_tstamp);
lgw_gps_sync(&time_reference_gps, trig_tstamp, gpsdata.fix.time);
printf("\n--- GPS ---\n");
printf("Set: %lld\n", gpsdata.set);
printf("Online: %10.0f\n", gpsdata.online);
printf("Status: %d\n", gpsdata.status);
printf("Satellites Used: %d\n", gpsdata.satellites_used);
printf("Mode: %d\n", gpsdata.fix.mode);
printf("UTC time: %lld.%09ld\n", (long long)time_reference_gps.utc.tv_sec, time_reference_gps.utc.tv_nsec);
printf("GPS time: %lld.%09ld\n", (long long)time_reference_gps.gps.tv_sec, time_reference_gps.gps.tv_nsec);
printf("Latitude: %f\n", gpsdata.fix.latitude);
printf("Longitude: %f\n", gpsdata.fix.longitude);
printf("Altitude: %fm\n", gpsdata.fix.altitude);
printf("Speed: %f\n", gpsdata.fix.speed);
printf("Track: %f\n", gpsdata.fix.track);
printf("Pdop: %f\n", gpsdata.dop.pdop);
}
}
/* clean up before leaving */
if (exit_sig == 1) {
lgw_gps_disable(&gpsdata);
lgw_stop();
}
printf("\nEnd of test for loragw_gps.c\n");
exit(EXIT_SUCCESS);
}
/* --- EOF ------------------------------------------------------------------ */
|
