/* $NetBSD: clk_hopf6021.c,v 1.7 2020/05/25 20:47:25 christos Exp $ */
/*
* /src/NTP/ntp4-dev/libparse/clk_hopf6021.c,v 4.10 2004/11/14 15:29:41 kardel RELEASE_20050508_A
*
* clk_hopf6021.c,v 4.10 2004/11/14 15:29:41 kardel RELEASE_20050508_A
*
* Radiocode Clocks HOPF Funkuhr 6021 mit serieller Schnittstelle
* base code version from 24th Nov 1995 - history at end
*
* Created by F.Schnekenbuehl <frank@comsys.dofn.de> from clk_rcc8000.c
* Nortel DASA Network Systems GmbH, Department: ND250
* A Joint venture of Daimler-Benz Aerospace and Nortel
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_HOPF6021)
#include "ntp_fp.h"
#include "ntp_unixtime.h"
#include "ntp_calendar.h"
#include "ascii.h"
#include "parse.h"
#ifndef PARSESTREAM
#include "ntp_stdlib.h"
#include <stdio.h>
#else
#include "sys/parsestreams.h"
extern int printf (const char *, ...);
#endif
/*
* hopf Funkuhr 6021
* used with 9600,8N1,
* UTC ueber serielle Schnittstelle
* Sekundenvorlauf ON
* ETX zum Sekundenvorlauf ON
* Datenstring 6021
* Ausgabe Uhrzeit und Datum
* Senden mit Steuerzeichen
* Senden sekuendlich
*/
/*
* Type 6021 Serial Output format
*
* 000000000011111111 / char
* 012345678901234567 \ position
* sABHHMMSSDDMMYYnre Actual
* C4110046231195 Parse
* s enr Check
*
* s = STX (0x02), e = ETX (0x03)
* n = NL (0x0A), r = CR (0x0D)
*
* A B - Status and weekday
*
* A - Status
*
* 8 4 2 1
* x x x 0 - no announcement
* x x x 1 - Summertime - wintertime - summertime announcement
* x x 0 x - Wintertime
* x x 1 x - Summertime
* 0 0 x x - Time/Date invalid
* 0 1 x x - Internal clock used
* 1 0 x x - Radio clock
* 1 1 x x - Radio clock highprecision
*
* B - 8 4 2 1
* 0 x x x - MESZ/MEZ
* 1 x x x - UTC
* x 0 0 1 - Monday
* x 0 1 0 - Tuesday
* x 0 1 1 - Wednesday
* x 1 0 0 - Thursday
* x 1 0 1 - Friday
* x 1 1 0 - Saturday
* x 1 1 1 - Sunday
*/
#define HOPF_DSTWARN 0x01 /* DST switch warning */
#define HOPF_DST 0x02 /* DST in effect */
#define HOPF_MODE 0x0C /* operation mode mask */
#define HOPF_INVALID 0x00 /* no time code available */
#define HOPF_INTERNAL 0x04 /* internal clock */
#define HOPF_RADIO 0x08 /* radio clock */
#define HOPF_RADIOHP 0x0C /* high precision radio clock */
#define HOPF_UTC 0x08 /* time code in UTC */
#define HOPF_WMASK 0x07 /* mask for weekday code */
static struct format hopf6021_fmt =
{
{
{ 9, 2 }, {11, 2}, { 13, 2}, /* Day, Month, Year */
{ 3, 2 }, { 5, 2}, { 7, 2}, /* Hour, Minute, Second */
{ 2, 1 }, { 1, 1}, { 0, 0}, /* Weekday, Flags, Zone */
/* ... */
},
(const unsigned char *)"\002 \n\r\003",
0
};
#define OFFS(x) format->field_offsets[(x)].offset
#define STOI(x, y) Stoi(&buffer[OFFS(x)], y, format->field_offsets[(x)].length)
static parse_cvt_fnc_t cvt_hopf6021;
static parse_inp_fnc_t inp_hopf6021;
static unsigned char hexval(unsigned char);
clockformat_t clock_hopf6021 =
{
inp_hopf6021, /* HOPF 6021 input handling */
cvt_hopf6021, /* Radiocode clock conversion */
0, /* no direct PPS monitoring */
(void *)&hopf6021_fmt, /* conversion configuration */
"hopf Funkuhr 6021", /* clock format name */
19, /* string buffer */
0 /* private data length, no private data */
};
/* parse_cvt_fnc_t cvt_hopf6021 */
static u_long
cvt_hopf6021(
unsigned char *buffer,
int size,
struct format *format,
clocktime_t *clock_time,
void *local
)
{
unsigned char status,weekday;
if (!Strok(buffer, format->fixed_string))
{
return CVT_NONE;
}
if ( STOI(O_DAY, &clock_time->day) ||
STOI(O_MONTH, &clock_time->month) ||
STOI(O_YEAR, &clock_time->year) ||
STOI(O_HOUR, &clock_time->hour) ||
STOI(O_MIN, &clock_time->minute) ||
STOI(O_SEC, &clock_time->second)
)
{
return CVT_FAIL|CVT_BADFMT;
}
clock_time->usecond = 0;
clock_time->flags = 0;
status = hexval(buffer[OFFS(O_FLAGS)]);
weekday = hexval(buffer[OFFS(O_WDAY)]);
if ((status == 0xFF) || (weekday == 0xFF))
{
return CVT_FAIL|CVT_BADFMT;
}
if (weekday & HOPF_UTC)
{
clock_time->flags |= PARSEB_UTC;
clock_time->utcoffset = 0;
}
else if (status & HOPF_DST)
{
clock_time->flags |= PARSEB_DST;
clock_time->utcoffset = -2*60*60; /* MET DST */
}
else
{
clock_time->utcoffset = -1*60*60; /* MET */
}
if (status & HOPF_DSTWARN)
{
clock_time->flags |= PARSEB_ANNOUNCE;
}
switch (status & HOPF_MODE)
{
default: /* dummy: we cover all 4 cases. */
case HOPF_INVALID: /* Time/Date invalid */
clock_time->flags |= PARSEB_POWERUP;
break;
case HOPF_INTERNAL: /* internal clock */
clock_time->flags |= PARSEB_NOSYNC;
break;
case HOPF_RADIO: /* Radio clock */
case HOPF_RADIOHP: /* Radio clock high precision */
break;
}
return CVT_OK;
}
/*
* parse_inp_fnc_t inp_hopf6021
*
* grab data from input stream
*/
static u_long
inp_hopf6021(
parse_t *parseio,
char ch,
timestamp_t *tstamp
)
{
unsigned int rtc;
parseprintf(DD_PARSE, ("inp_hopf6021(0x%p, 0x%x, ...)\n", (void*)parseio, ch));
switch (ch)
{
case ETX:
parseprintf(DD_PARSE, ("inp_hopf6021: 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);
}
}
/*
* convert a hex-digit to numeric value
*/
static unsigned char
hexval(
unsigned char ch
)
{
unsigned int dv;
if ((dv = ch - '0') >= 10u)
{
if ((dv -= 'A'-'0') < 6u || (dv -= 'a'-'A') < 6u)
{
dv += 10;
}
else
{
dv = 0xFF;
}
}
return (unsigned char)dv;
}
#else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_HOPF6021) */
int clk_hopf6021_bs;
#endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_HOPF6021) */
/*
* History:
*
* clk_hopf6021.c,v
* Revision 4.10 2004/11/14 15:29:41 kardel
* support PPSAPI, upgrade Copyright to Berkeley style
*
* Revision 4.7 1999/11/28 09:13:49 kardel
* RECON_4_0_98F
*
* Revision 4.6 1998/11/15 20:27:57 kardel
* Release 4.0.73e13 reconcilation
*
* Revision 4.5 1998/06/14 21:09:35 kardel
* Sun acc cleanup
*
* Revision 4.4 1998/06/13 12:02:38 kardel
* fix SYSV clock name clash
*
* Revision 4.3 1998/06/12 15:22:27 kardel
* fix prototypes
*
* Revision 4.2 1998/06/12 09:13:25 kardel
* conditional compile macros fixed
* printf prototype
*
* Revision 4.1 1998/05/24 09:39:52 kardel
* implementation of the new IO handling model
*
* Revision 4.0 1998/04/10 19:45:29 kardel
* Start 4.0 release version numbering
*
* from V3 3.6 log info deleted 1998/04/11 kardel
*/