/*      $NetBSD: data_mbg.c,v 1.9 2020/05/25 20:47:25 christos Exp $    */

/*
* /src/NTP/REPOSITORY/ntp4-dev/libparse/data_mbg.c,v 4.8 2006/06/22 18:40:01 kardel RELEASE_20060622_A
*
* data_mbg.c,v 4.8 2006/06/22 18:40:01 kardel RELEASE_20060622_A
*
* $Created: Sun Jul 20 12:08:14 1997 $
*
* Copyright (c) 1997-2005 by Frank Kardel <kardel <AT> ntp.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/

#include <config.h>
#ifdef PARSESTREAM
#define NEED_BOPS
#include "ntp_string.h"
#else
#include <stdio.h>
#endif
#include "ntp_types.h"
#include "ntp_stdlib.h"
#include "ntp_fp.h"
#include "ntp_calendar.h"
#include "mbg_gps166.h"
#include "binio.h"
#include "ieee754io.h"

static void get_mbg_tzname (unsigned char **, char *);
static void mbg_time_status_str (char **, unsigned int, int);

#if 0                           /* no actual floats on Meinberg binary interface */
static offsets_t mbg_float  = { 1, 0, 3, 2, 0, 0, 0, 0 }; /* byte order for meinberg floats */
#endif
static offsets_t mbg_double = { 1, 0, 3, 2, 5, 4, 7, 6 }; /* byte order for meinberg doubles */
static int32   rad2deg_i = 57;
static u_int32 rad2deg_f = 0x4BB834C7; /* 57.2957795131 == 180/PI */

void
put_mbg_header(
       unsigned char **bufpp,
       GPS_MSG_HDR *headerp
       )
{
 put_lsb_short(bufpp, headerp->cmd);
 put_lsb_short(bufpp, headerp->len);
 put_lsb_short(bufpp, headerp->data_csum);
 put_lsb_short(bufpp, headerp->hdr_csum);
}

void
get_mbg_sw_rev(
       unsigned char **bufpp,
       SW_REV *sw_revp
       )
{
 sw_revp->code = get_lsb_uint16(bufpp);
 memcpy(sw_revp->name, *bufpp, sizeof(sw_revp->name));
 *bufpp += sizeof(sw_revp->name);
}

void
get_mbg_ascii_msg(
       unsigned char **bufpp,
       ASCII_MSG *ascii_msgp
       )
{
 ascii_msgp->csum  = (CSUM) get_lsb_short(bufpp);
 ascii_msgp->valid = get_lsb_int16(bufpp);
 memcpy(ascii_msgp->s, *bufpp, sizeof(ascii_msgp->s));
 *bufpp += sizeof(ascii_msgp->s);
}

void
get_mbg_svno(
       unsigned char **bufpp,
       SVNO *svnop
       )
{
 *svnop = (SVNO) get_lsb_short(bufpp);
}

void
get_mbg_health(
       unsigned char **bufpp,
       HEALTH *healthp
       )
{
 *healthp = (HEALTH) get_lsb_short(bufpp);
}

void
get_mbg_cfg(
       unsigned char **bufpp,
       CFG *cfgp
       )
{
 *cfgp = (CFG) get_lsb_short(bufpp);
}

void
get_mbg_tgps(
       unsigned char **bufpp,
       T_GPS *tgpsp
       )
{
 tgpsp->wn = get_lsb_uint16(bufpp);
 tgpsp->sec = get_lsb_long(bufpp);
 tgpsp->tick = get_lsb_long(bufpp);
}

void
get_mbg_tm(
       unsigned char **buffpp,
       TM_GPS *tmp
       )
{
 tmp->year = get_lsb_int16(buffpp);
 tmp->month = *(*buffpp)++;
 tmp->mday = *(*buffpp)++;
 tmp->yday = get_lsb_int16(buffpp);
 tmp->wday = *(*buffpp)++;
 tmp->hour = *(*buffpp)++;
 tmp->min = *(*buffpp)++;
 tmp->sec = *(*buffpp)++;
 tmp->frac = get_lsb_long(buffpp);
 tmp->offs_from_utc = get_lsb_long(buffpp);
 tmp->status = get_lsb_uint16(buffpp);
}

void
get_mbg_ttm(
       unsigned char **buffpp,
       TTM *ttmp
       )
{
 ttmp->channel = get_lsb_int16(buffpp);
 get_mbg_tgps(buffpp, &ttmp->t);
 get_mbg_tm(buffpp, &ttmp->tm);
}

void
get_mbg_synth(
       unsigned char **buffpp,
       SYNTH *synthp
       )
{
 synthp->freq  = get_lsb_int16(buffpp);
 synthp->range = get_lsb_int16(buffpp);
 synthp->phase = get_lsb_int16(buffpp);
}

static void
get_mbg_tzname(
       unsigned char **buffpp,
       char *tznamep
       )
{
 strlcpy(tznamep, (char *)*buffpp, sizeof(TZ_NAME));
 *buffpp += sizeof(TZ_NAME);
}

void
get_mbg_tzdl(
       unsigned char **buffpp,
       TZDL *tzdlp
       )
{
 tzdlp->offs = get_lsb_long(buffpp);
 tzdlp->offs_dl = get_lsb_long(buffpp);
 get_mbg_tm(buffpp, &tzdlp->tm_on);
 get_mbg_tm(buffpp, &tzdlp->tm_off);
 get_mbg_tzname(buffpp, (char *)tzdlp->name[0]);
 get_mbg_tzname(buffpp, (char *)tzdlp->name[1]);
}

void
get_mbg_antinfo(
       unsigned char **buffpp,
       ANT_INFO *antinfop
       )
{
 antinfop->status = get_lsb_int16(buffpp);
 get_mbg_tm(buffpp, &antinfop->tm_disconn);
 get_mbg_tm(buffpp, &antinfop->tm_reconn);
 antinfop->delta_t = get_lsb_long(buffpp);
}

static void
mbg_time_status_str(
       char **buffpp,
       unsigned int status,
       int size
       )
{
       static struct state
       {
               int         flag;       /* bit flag */
               const char *string;     /* bit name */
       } states[] =
                 {
                         { TM_UTC,    "UTC CORR" },
                         { TM_LOCAL,  "LOCAL TIME" },
                         { TM_DL_ANN, "DST WARN" },
                         { TM_DL_ENB, "DST" },
                         { TM_LS_ANN, "LEAP WARN" },
                         { TM_LS_ENB, "LEAP SEC" },
                         { 0, "" }
                 };

       if (status)
       {
               char *start, *p;
               struct state *s;

               start = p = *buffpp;

               for (s = states; s->flag; s++)
               {
                       if (s->flag & status)
                       {
                               if (p != *buffpp)
                               {
                                       strlcpy(p, ", ", size - (p - start));
                                       p += 2;
                               }
                               strlcpy(p, s->string, size - (p - start));
                               p += strlen(p);
                       }
               }
               *buffpp = p;
       }
}

void
mbg_tm_str(
       char **buffpp,
       TM_GPS *tmp,
       int size,
       int print_status
       )
{
       char *s = *buffpp;

       snprintf(*buffpp, size, "%04d-%02d-%02d %02d:%02d:%02d.%07ld (%c%02d%02d) ",
                tmp->year, tmp->month, tmp->mday,
                tmp->hour, tmp->min, tmp->sec, (long) tmp->frac,
                (tmp->offs_from_utc < 0) ? '-' : '+',
                abs((int)tmp->offs_from_utc) / 3600,
                (abs((int)tmp->offs_from_utc) / 60) % 60);
       *buffpp += strlen(*buffpp);

       if (print_status)
               mbg_time_status_str(buffpp, tmp->status, size - (*buffpp - s));
}

void
mbg_tgps_str(
       char **buffpp,
       T_GPS *tgpsp,
       int size
       )
{
       snprintf(*buffpp, size, "week %d + %ld days + %ld.%07ld sec",
                tgpsp->wn, (long) tgpsp->sec / SECSPERDAY,
                (long) tgpsp->sec % SECSPERDAY, (long) tgpsp->tick);
       *buffpp += strlen(*buffpp);
}

void
get_mbg_cfgh(
       unsigned char **buffpp,
       CFGH *cfghp
       )
{
 int i;

 cfghp->csum = (CSUM) get_lsb_short(buffpp);
 cfghp->valid = get_lsb_int16(buffpp);
 get_mbg_tgps(buffpp, &cfghp->tot_51);
 get_mbg_tgps(buffpp, &cfghp->tot_63);
 get_mbg_tgps(buffpp, &cfghp->t0a);

 for (i = 0; i < N_SVNO_GPS; i++)
   {
     get_mbg_cfg(buffpp, &cfghp->cfg[i]);
   }

 for (i = 0; i < N_SVNO_GPS; i++)
   {
     get_mbg_health(buffpp, &cfghp->health[i]);
   }
}

void
get_mbg_utc(
       unsigned char **buffpp,
       UTC *utcp
       )
{
 utcp->csum  = (CSUM) get_lsb_short(buffpp);
 utcp->valid = get_lsb_int16(buffpp);

 get_mbg_tgps(buffpp, &utcp->t0t);

 if (fetch_ieee754(buffpp, IEEE_DOUBLE, &utcp->A0, mbg_double) != IEEE_OK)
   {
     L_CLR(&utcp->A0);
   }

 if (fetch_ieee754(buffpp, IEEE_DOUBLE, &utcp->A1, mbg_double) != IEEE_OK)
   {
     L_CLR(&utcp->A1);
   }

 utcp->WNlsf      = get_lsb_uint16(buffpp);
 utcp->DNt        = get_lsb_int16(buffpp);
 utcp->delta_tls  = *(*buffpp)++;
 utcp->delta_tlsf = *(*buffpp)++;
}

void
get_mbg_lla(
       unsigned char **buffpp,
       LLA lla
       )
{
 int i;

 for (i = LAT; i <= ALT; i++)
   {
     if  (fetch_ieee754(buffpp, IEEE_DOUBLE, &lla[i], mbg_double) != IEEE_OK)
       {
         L_CLR(&lla[i]);
       }
     else
       if (i != ALT)
         {                     /* convert to degrees (* 180/PI) */
           mfp_mul(&lla[i].l_i, &lla[i].l_uf, lla[i].l_i, lla[i].l_uf, rad2deg_i, rad2deg_f);
         }
   }
}

void
get_mbg_xyz(
       unsigned char **buffpp,
       XYZ xyz
       )
{
 int i;

 for (i = XP; i <= ZP; i++)
   {
     if  (fetch_ieee754(buffpp, IEEE_DOUBLE, &xyz[i], mbg_double) != IEEE_OK)
       {
         L_CLR(&xyz[i]);
       }
   }
}

static void
get_mbg_comparam(
       unsigned char **buffpp,
       COM_PARM *comparamp
       )
{
 size_t i;

 comparamp->baud_rate = get_lsb_long(buffpp);
 for (i = 0; i < sizeof(comparamp->framing); i++)
   {
     comparamp->framing[i] = *(*buffpp)++;
   }
 comparamp->handshake = get_lsb_int16(buffpp);
}

void
get_mbg_portparam(
       unsigned char **buffpp,
       PORT_PARM *portparamp
       )
{
 int i;

 for (i = 0; i < DEFAULT_N_COM; i++)
   {
     get_mbg_comparam(buffpp, &portparamp->com[i]);
   }
 for (i = 0; i < DEFAULT_N_COM; i++)
   {
     portparamp->mode[i] = *(*buffpp)++;
   }
}

#define FETCH_DOUBLE(src, addr)                                                 \
       if  (fetch_ieee754(src, IEEE_DOUBLE, addr, mbg_double) != IEEE_OK)      \
       {                                                                       \
         L_CLR(addr);                                                          \
       }

void
get_mbg_eph(
       unsigned char ** buffpp,
       EPH *ephp
       )
{
 ephp->csum   = (CSUM) get_lsb_short(buffpp);
 ephp->valid  = get_lsb_int16(buffpp);

 ephp->health = (HEALTH) get_lsb_short(buffpp);
 ephp->IODC   = (IOD) get_lsb_short(buffpp);
 ephp->IODE2  = (IOD) get_lsb_short(buffpp);
 ephp->IODE3  = (IOD) get_lsb_short(buffpp);

 get_mbg_tgps(buffpp, &ephp->tt);
 get_mbg_tgps(buffpp, &ephp->t0c);
 get_mbg_tgps(buffpp, &ephp->t0e);

 FETCH_DOUBLE(buffpp, &ephp->sqrt_A);
 FETCH_DOUBLE(buffpp, &ephp->e);
 FETCH_DOUBLE(buffpp, &ephp->M0);
 FETCH_DOUBLE(buffpp, &ephp->omega);
 FETCH_DOUBLE(buffpp, &ephp->OMEGA0);
 FETCH_DOUBLE(buffpp, &ephp->OMEGADOT);
 FETCH_DOUBLE(buffpp, &ephp->deltan);
 FETCH_DOUBLE(buffpp, &ephp->i0);
 FETCH_DOUBLE(buffpp, &ephp->idot);
 FETCH_DOUBLE(buffpp, &ephp->crc);
 FETCH_DOUBLE(buffpp, &ephp->crs);
 FETCH_DOUBLE(buffpp, &ephp->cuc);
 FETCH_DOUBLE(buffpp, &ephp->cus);
 FETCH_DOUBLE(buffpp, &ephp->cic);
 FETCH_DOUBLE(buffpp, &ephp->cis);

 FETCH_DOUBLE(buffpp, &ephp->af0);
 FETCH_DOUBLE(buffpp, &ephp->af1);
 FETCH_DOUBLE(buffpp, &ephp->af2);
 FETCH_DOUBLE(buffpp, &ephp->tgd);

 ephp->URA = get_lsb_uint16(buffpp);

 ephp->L2code = *(*buffpp)++;
 ephp->L2flag = *(*buffpp)++;
}

void
get_mbg_alm(
       unsigned char **buffpp,
       ALM *almp
       )
{
 almp->csum   = (CSUM) get_lsb_short(buffpp);
 almp->valid  = get_lsb_int16(buffpp);

 almp->health = (HEALTH) get_lsb_short(buffpp);
 get_mbg_tgps(buffpp, &almp->t0a);


 FETCH_DOUBLE(buffpp, &almp->sqrt_A);
 FETCH_DOUBLE(buffpp, &almp->e);

 FETCH_DOUBLE(buffpp, &almp->M0);
 FETCH_DOUBLE(buffpp, &almp->omega);
 FETCH_DOUBLE(buffpp, &almp->OMEGA0);
 FETCH_DOUBLE(buffpp, &almp->OMEGADOT);
 FETCH_DOUBLE(buffpp, &almp->deltai);
 FETCH_DOUBLE(buffpp, &almp->af0);
 FETCH_DOUBLE(buffpp, &almp->af1);
}

void
get_mbg_iono(
       unsigned char **buffpp,
       IONO *ionop
       )
{
 ionop->csum   = (CSUM) get_lsb_short(buffpp);
 ionop->valid  = get_lsb_int16(buffpp);

 FETCH_DOUBLE(buffpp, &ionop->alpha_0);
 FETCH_DOUBLE(buffpp, &ionop->alpha_1);
 FETCH_DOUBLE(buffpp, &ionop->alpha_2);
 FETCH_DOUBLE(buffpp, &ionop->alpha_3);

 FETCH_DOUBLE(buffpp, &ionop->beta_0);
 FETCH_DOUBLE(buffpp, &ionop->beta_1);
 FETCH_DOUBLE(buffpp, &ionop->beta_2);
 FETCH_DOUBLE(buffpp, &ionop->beta_3);
}

/*
* data_mbg.c,v
* Revision 4.8  2006/06/22 18:40:01  kardel
* clean up signedness (gcc 4)
*
* Revision 4.7  2005/10/07 22:11:10  kardel
* bounded buffer implementation
*
* Revision 4.6.2.1  2005/09/25 10:23:06  kardel
* support bounded buffers
*
* Revision 4.6  2005/04/16 17:32:10  kardel
* update copyright
*
* Revision 4.5  2004/11/14 15:29:41  kardel
* support PPSAPI, upgrade Copyright to Berkeley style
*
* Revision 4.3  1999/02/21 12:17:42  kardel
* 4.91f reconcilation
*
* Revision 4.2  1998/06/14 21:09:39  kardel
* Sun acc cleanup
*
* Revision 4.1  1998/05/24 08:02:06  kardel
* trimmed version log
*
* Revision 4.0  1998/04/10 19:45:33  kardel
* Start 4.0 release version numbering
*/

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