static void
send_packet(void)
{
int rtx;
switch (state) {
case XDM_QUERY:
case XDM_BROADCAST:
case XDM_INDIRECT:
#if defined(IPv6) && defined(AF_INET6)
case XDM_MULTICAST:
#endif
send_query_msg();
break;
case XDM_START_CONNECTION:
send_request_msg();
break;
case XDM_MANAGE:
send_manage_msg();
break;
case XDM_KEEPALIVE:
send_keepalive_msg();
break;
default:
break;
}
rtx = (XDM_MIN_RTX << timeOutRtx);
if (rtx > XDM_MAX_RTX)
rtx = XDM_MAX_RTX;
timeOutTime = GetTimeInMillis() + rtx * 1000;
}
/** get gps time in utc seconds
*
* updates the time_t referenced structure passed to method.
*
* @return time_t
*/
time_t tsip::get_gps_time_utc() {
bool rc;
//build a2 request - set UTC
m_command.extended.code = COMMAND_SUPER_PACKET;
m_command.extended.subcode = REPORT_SUPER_UTC_GPS_TIME;
m_command.extended.data[0] = 0x3;
m_command.extended.cmd_len = 3;
rc = send_request_msg(m_command);
//build ab request - request time packet
m_command.extended.code = COMMAND_SUPER_PACKET;
m_command.extended.subcode = REPORT_SUPER_PRIMARY_TIME;
m_command.extended.cmd_len = 2;
rc = get_report_msg(m_command);
if (!rc) {
printf("****Failed to get GPS time****\n");
exit (false);
}
struct tm time;
time.tm_zone = "UTC";
time.tm_wday = -1;
time.tm_yday = -1;
time.tm_isdst = -1;
time.tm_year = m_primary_time.report.year - 1900;
time.tm_mon = m_primary_time.report.month - 1;
time.tm_mday = m_primary_time.report.day;
time.tm_hour = m_primary_time.report.hours;
time.tm_min = m_primary_time.report.minutes;
time.tm_sec = m_primary_time.report.seconds;
gps_time = timegm(&time);
if (verbose) {
printf("Got GPS time Year: %d, Month: %d, Day: %d, Hour: %d, Minutes: %d, Seconds: %d\n", time.tm_year, time.tm_mon, time.tm_mday, time.tm_hour, time.tm_min, time.tm_sec);
printf("seconds: %d\n", gps_time);
}
return gps_time;
}
/** get_report_msg
*
* send a sequence of commands to the gps. The loop is continued until
* the correct message id is returned.
*
* @return bool
*/
bool tsip::get_report_msg(_command_packet _cmd) {
//clear report flags
init_rpt();
// init local var
unsigned char ch = 0;
RETRY:
// send the commmand
send_request_msg(m_command);
// read stream and pass to encode routine untile packet complete
int loop_cnt=0;
while (!is_report_found(_cmd)) {
int rc = 0;
while (rc == 0) {
rc = encode(getc(file));
}
loop_cnt++;
if (loop_cnt >20) break;
}
//set flag
bool rpt_fnd = is_report_found(_cmd);
if(verbose){
if (rpt_fnd) {
printf("Packet %x %x found \n",m_report.report.code,m_report.extended.subcode);
}else {
printf("Packet for %x %x not found \n",m_report.report.code,m_report.extended.subcode);
}
printf("\n");
}
return (rpt_fnd);
}
