text: /*
   * /src/NTP/ntp4-dev/libparse/clk_dcf7000.c,v 4.10 2005/04/16 17:32:10 kardel RELEASE_20050508_A
   *
   * clk_dcf7000.c,v 4.10 2005/04/16 17:32:10 kardel RELEASE_20050508_A
   *
   * ELV DCF7000 module
   *
   * Copyright (c) 1995-2005 by Frank Kardel <kardel <AT> ntp.org>
   * Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universitaet Erlangen-Nuernberg, Germany
   *
   * 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.
   *
   */
  
  #ifdef HAVE_CONFIG_H
  # include <config.h>
  #endif
  
  #if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_DCF7000)
  
  #include "ntp_fp.h"
  #include "ntp_unixtime.h"
  #include "ntp_calendar.h"
  
  #include "parse.h"
  
  #ifndef PARSESTREAM
  #include "ntp_stdlib.h"
  #include <stdio.h>
  #else
  #include "sys/parsestreams.h"
  extern int printf (const char *, ...);
  #endif
  
  static struct format dcf7000_fmt =
  {				/* ELV DCF7000 */
  	{
  		{  6, 2}, {  3, 2}, {  0, 2},
  		{ 12, 2}, { 15, 2}, { 18, 2},
  		{  9, 2}, { 21, 2},
  	},
  	(const unsigned char *)"  -  -  -  -  -  -  -  \r",
  	0
  };
  
  static parse_cvt_fnc_t cvt_dcf7000;
  static parse_inp_fnc_t inp_dcf7000;
  
  clockformat_t clock_dcf7000 =
  {
    inp_dcf7000,			/* DCF7000 input handling */
    cvt_dcf7000,			/* ELV DCF77 conversion */
    0,				/* no direct PPS monitoring */
    (void *)&dcf7000_fmt,		/* conversion configuration */
    "ELV DCF7000",		/* ELV clock */
    24,				/* string buffer */
    0				/* no private data (complete packets) */
  };
  
  /*
   * parse_cvt_fnc_t cvt_dcf7000
   *
   * convert dcf7000 type format
   */
  static u_long
  cvt_dcf7000(
  	    unsigned char *buffer,
  	    int            size,
  	    struct format *format,
  	    clocktime_t   *clock_time,
  	    void          *local
  	    )
  {
  	if (!Strok(buffer, format->fixed_string))
  	{
  		return CVT_NONE;
  	}
  	else
  	{
  		if (Stoi(&buffer[format->field_offsets[O_DAY].offset], &clock_time->day,
  			 format->field_offsets[O_DAY].length) ||
  		    Stoi(&buffer[format->field_offsets[O_MONTH].offset], &clock_time->month,
  			 format->field_offsets[O_MONTH].length) ||
  		    Stoi(&buffer[format->field_offsets[O_YEAR].offset], &clock_time->year,
  			 format->field_offsets[O_YEAR].length) ||
  		    Stoi(&buffer[format->field_offsets[O_HOUR].offset], &clock_time->hour,
  			 format->field_offsets[O_HOUR].length) ||
  		    Stoi(&buffer[format->field_offsets[O_MIN].offset], &clock_time->minute,
  			 format->field_offsets[O_MIN].length) ||
  		    Stoi(&buffer[format->field_offsets[O_SEC].offset], &clock_time->second,
  			 format->field_offsets[O_SEC].length))
  		{
  			return CVT_FAIL|CVT_BADFMT;
  		}
  		else
  		{
  			unsigned char *f = &buffer[format->field_offsets[O_FLAGS].offset];
  			long flags;
  
  			clock_time->flags = 0;
  			clock_time->usecond = 0;
  
  			if (Stoi(f, &flags, format->field_offsets[O_FLAGS].length))
  			{
  				return CVT_FAIL|CVT_BADFMT;
  			}
  			else
  			{
  				if (flags & 0x1)
  				    clock_time->utcoffset = -2*60*60;
  				else
  				    clock_time->utcoffset = -1*60*60;
  
  				if (flags & 0x2)
  				    clock_time->flags |= PARSEB_ANNOUNCE;
  
  				if (flags & 0x4)
  				    clock_time->flags |= PARSEB_NOSYNC;
  			}
  			return CVT_OK;
  		}
  	}
  }
  
  /*
   * parse_inp_fnc_t inp_dcf700
   *
   * grab data from input stream
   */
  static u_long
  inp_dcf7000(
  	  parse_t      *parseio,
  	  char         ch,
  	  timestamp_t  *tstamp
  	  )
  {
  	unsigned int rtc;
  
  	parseprintf(DD_PARSE, ("inp_dcf7000(0x%p, 0x%x, ...)\n", (void*)parseio, ch));
  
  	switch (ch)
  	{
  	case '\r':
  		parseprintf(DD_PARSE, ("inp_dcf7000: EOL seen\n"));
  		parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
  		if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
  			return parse_end(parseio);
  		else
  			return rtc;
  
  	default:
  		return parse_addchar(parseio, ch);
  	}
  }
  
  #else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_DCF7000) */
  int clk_dcf7000_bs;
  #endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_DCF7000) */
  
  /*
   * History:
   *
   * clk_dcf7000.c,v
   * Revision 4.10  2005/04/16 17:32:10  kardel
   * update copyright
   *
   * Revision 4.9  2004/11/14 15:29:41  kardel
   * support PPSAPI, upgrade Copyright to Berkeley style
   *
   * Revision 4.6  1999/11/28 09:13:49  kardel
   * RECON_4_0_98F
   *
   * Revision 4.5  1998/06/14 21:09:34  kardel
   * Sun acc cleanup
   *
   * Revision 4.4  1998/06/13 12:01:59  kardel
   * fix SYSV clock name clash
   *
   * Revision 4.3  1998/06/12 15:22:27  kardel
   * fix prototypes
   *
   * Revision 4.2  1998/06/12 09:13:24  kardel
   * conditional compile macros fixed
   * printf prototype
   *
   * Revision 4.1  1998/05/24 09:39:51  kardel
   * implementation of the new IO handling model
   *
   * Revision 4.0  1998/04/10 19:45:28  kardel
   * Start 4.0 release version numbering
   *
   * from V3 3.18 log info deleted 1998/04/11 kardel
   */
  