Early/Obsolete code for Location Service (LCS / SMLC / RRLP)
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osmocom-lcs/main.c

99 lines
1.6 KiB

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "gps.h"
#include "ubx.h"
#include "ubx-parse.h"
#include "rrlp.h"
static int
do_ubx_read(struct gps_assist_data *gps, const char *filename)
{
int rv, fd, i;
struct stat st;
void *buf;
/* Load file */
fd = open(filename, O_RDONLY);
if (fd < 0)
return -1;
rv = fstat(fd, &st);
if (rv < 0) {
close(fd);
return -1;
}
buf = malloc(st.st_size);
if (!buf) {
close(fd);
return -1;
}
rv = read(fd, buf, st.st_size);
if (rv != st.st_size) {
free(buf);
close(fd);
return -1;
}
/* Parse each message */
for (i=0; i<st.st_size;) {
int rv;
rv = ubx_msg_dispatch(ubx_parse_dt, buf + i, st.st_size - i, gps);
if (rv < 0)
i++; /* Invalid message: try one byte later */
else
i += rv;
}
/* Done */
free(buf);
close(fd);
return 0;
}
static int
do_rrlp(struct gps_assist_data *gps)
{
struct rrlp_assist_req ar;
void *pdus[64];
int len[64];
int i, rv;
char *test = "\x28\x00\x80\x10\x01\x32\x00\x19\x4F\x07\x15\x04";
rrlp_decode_assistance_request(&ar, test, 12);
printf("%08x %016llx\n", ar.req_elems, (long long unsigned) ar.eph_svs);
ar.req_elems = -1;
ar.eph_svs = -1LL;
rv = rrlp_gps_assist_pdus(gps, &ar, pdus, len, 64);
printf("%d\n", rv);
for (i=0; i<rv; i++) {
printf("%p %d\n", pdus[i], len[i]);
}
return 0;
}
int main(int argc, char *argv[])
{
struct gps_assist_data gps;
int rv;
memset(&gps, 0x00, sizeof(gps));
rv = do_ubx_read(&gps, "data.ubx");
rv = do_rrlp(&gps);
return 0;
}