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/*
* ELV DCF7000 module
*
* Copyright Frank Kardel <kardel@ntp.org>
* Copyright the NTPsec project contributors
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "config.h"
#include "ntp_fp.h"
#include "ntp_calendar.h"
#include "parse.h"
#include "ntp_stdlib.h"
#include <stdio.h>
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 unsigned long
cvt_dcf7000(
unsigned char *buffer,
int size,
struct format *format,
clocktime_t *clock_time,
void *local
)
{
UNUSED_ARG(size);
UNUSED_ARG(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 unsigned long
inp_dcf7000(
parse_t *parseio,
char ch,
timestamp_t *tstamp
)
{
unsigned int rtc;
parseprintf(DD_PARSE, ("inp_dcf7000(0x%lx, 0x%x, ...)\n",
(unsigned long)parseio, (unsigned)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);
}
}
/*
* 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
*/
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