199 lines
5.1 KiB
C
199 lines
5.1 KiB
C
/*
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* /src/NTP/ntp4-dev/libparse/clk_rcc8000.c,v 4.9 2004/11/14 15:29:41 kardel RELEASE_20050508_A
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*
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* clk_rcc8000.c,v 4.9 2004/11/14 15:29:41 kardel RELEASE_20050508_A
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*
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* Radiocode Clocks Ltd RCC 8000 Intelligent Off-Air Master Clock support
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*
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* Created by R.E.Broughton from clk_trimtaip.c
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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*/
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif
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#if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_RCC8000)
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#include "ntp_fp.h"
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#include "ntp_unixtime.h"
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#include "ntp_calendar.h"
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#include "parse.h"
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#ifndef PARSESTREAM
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#include "ntp_stdlib.h"
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#include <stdio.h>
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#else
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#include "sys/parsestreams.h"
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extern int printf (const char *, ...);
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#endif
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/* Type II Serial Output format
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*
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* 0000000000111111111122222222223 / char
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* 0123456789012345678901234567890 \ posn
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* HH:MM:SS.XYZ DD/MM/YY DDD W Prn Actual
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* 33 44 55 666 00 11 22 7 Parse
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* : : . / / rn Check
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* "15:50:36.534 30/09/94 273 5 A\x0d\x0a"
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*
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* DDD - Day of year number
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* W - Day of week number (Sunday is 0)
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* P is the Status. See comment below for details.
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*/
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#define O_USEC O_WDAY
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static struct format rcc8000_fmt =
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{ { { 13, 2 }, {16, 2}, { 19, 2}, /* Day, Month, Year */
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{ 0, 2 }, { 3, 2}, { 6, 2}, /* Hour, Minute, Second */
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{ 9, 3 }, {28, 1}, { 0, 0}, /* uSec, Status (Valid,Reject,BST,Leapyear) */ },
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(const unsigned char *)" : : . / / \r\n",
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/*"15:50:36.534 30/09/94 273 5 A\x0d\x0a" */
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0
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};
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static unsigned long cvt_rcc8000 (unsigned char *, int, struct format *, clocktime_t *, void *);
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static unsigned long inp_rcc8000 (parse_t *, unsigned int, timestamp_t *);
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clockformat_t clock_rcc8000 =
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{
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inp_rcc8000, /* no input handling */
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cvt_rcc8000, /* Radiocode clock conversion */
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0, /* no direct PPS monitoring */
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(void *)&rcc8000_fmt, /* conversion configuration */
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"Radiocode RCC8000",
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31, /* string buffer */
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0 /* no private data */
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};
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static unsigned long
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cvt_rcc8000(
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unsigned char *buffer,
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int size,
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struct format *format,
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clocktime_t *clock_time,
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void *local
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)
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{
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if (!Strok(buffer, format->fixed_string)) return CVT_NONE;
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#define OFFS(x) format->field_offsets[(x)].offset
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#define STOI(x, y) Stoi(&buffer[OFFS(x)], y, format->field_offsets[(x)].length)
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if ( STOI(O_DAY, &clock_time->day) ||
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STOI(O_MONTH, &clock_time->month) ||
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STOI(O_YEAR, &clock_time->year) ||
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STOI(O_HOUR, &clock_time->hour) ||
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STOI(O_MIN, &clock_time->minute) ||
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STOI(O_SEC, &clock_time->second) ||
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STOI(O_USEC, &clock_time->usecond)
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) return CVT_FAIL|CVT_BADFMT;
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clock_time->usecond *= 1000;
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clock_time->utcoffset = 0;
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#define RCCP buffer[28]
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/*
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* buffer[28] is the ASCII representation of a hex character ( 0 through F )
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* The four bits correspond to:
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* 8 - Valid Time
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* 4 - Reject Code
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* 2 - British Summer Time (receiver set to emit GMT all year.)
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* 1 - Leap year
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*/
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#define RCC8000_VALID 0x8
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#define RCC8000_REJECT 0x4
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#define RCC8000_BST 0x2
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#define RCC8000_LEAPY 0x1
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clock_time->flags = 0;
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if ( (RCCP >= '0' && RCCP <= '9') || (RCCP >= 'A' && RCCP <= 'F') )
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{
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register int flag;
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flag = (RCCP >= '0' && RCCP <= '9' ) ? RCCP - '0' : RCCP - 'A' + 10;
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if (!(flag & RCC8000_VALID))
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clock_time->flags |= PARSEB_POWERUP;
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clock_time->flags |= PARSEB_UTC; /* British special - guess why 8-) */
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/* other flags not used */
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}
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return CVT_OK;
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}
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/*
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* inp_rcc8000
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*
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* grep data from input stream
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*/
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static u_long
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inp_rcc8000(
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parse_t *parseio,
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unsigned int ch,
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timestamp_t *tstamp
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)
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{
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unsigned int rtc;
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parseprintf(DD_PARSE, ("inp_rcc8000(0x%lx, 0x%x, ...)\n", (long)parseio, ch));
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switch (ch)
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{
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case '\n':
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parseprintf(DD_PARSE, ("inp_rcc8000: EOL seen\n"));
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if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
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return parse_end(parseio);
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else
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return rtc;
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default:
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if (parseio->parse_index == 0) /* take sample at start of message */
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{
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parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
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}
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return parse_addchar(parseio, ch);
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}
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}
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#else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_RCC8000) */
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int clk_rcc8000_bs;
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#endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_RCC8000) */
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/*
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* History:
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*
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* clk_rcc8000.c,v
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* Revision 4.9 2004/11/14 15:29:41 kardel
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* support PPSAPI, upgrade Copyright to Berkeley style
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*
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* Revision 4.6 1999/11/28 09:13:51 kardel
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* RECON_4_0_98F
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*
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* Revision 4.5 1998/06/14 21:09:38 kardel
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* Sun acc cleanup
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*
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* Revision 4.4 1998/06/13 12:05:02 kardel
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* fix SYSV clock name clash
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*
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* Revision 4.3 1998/06/12 15:22:29 kardel
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* fix prototypes
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*
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* Revision 4.2 1998/06/12 09:13:25 kardel
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* conditional compile macros fixed
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* printf prototype
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*
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* Revision 4.1 1998/05/24 09:39:53 kardel
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* implementation of the new IO handling model
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*
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* Revision 4.0 1998/04/10 19:45:30 kardel
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* Start 4.0 release version numbering
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*
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* from V3 3.5 log info deleted 1998/04/11 kardel
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*/
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