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| Current File : //usr/src/contrib/ntp/libparse/clk_rcc8000.c |
/*
* /src/NTP/ntp4-dev/libparse/clk_rcc8000.c,v 4.9 2004/11/14 15:29:41 kardel RELEASE_20050508_A
*
* clk_rcc8000.c,v 4.9 2004/11/14 15:29:41 kardel RELEASE_20050508_A
*
* Radiocode Clocks Ltd RCC 8000 Intelligent Off-Air Master Clock support
*
* Created by R.E.Broughton from clk_trimtaip.c
*
* 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.
*
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_RCC8000)
#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 void printf P((const char *, ...));
#endif
/* Type II Serial Output format
*
* 0000000000111111111122222222223 / char
* 0123456789012345678901234567890 \ posn
* HH:MM:SS.XYZ DD/MM/YY DDD W Prn Actual
* 33 44 55 666 00 11 22 7 Parse
* : : . / / rn Check
* "15:50:36.534 30/09/94 273 5 A\x0d\x0a"
*
* DDD - Day of year number
* W - Day of week number (Sunday is 0)
* P is the Status. See comment below for details.
*/
#define O_USEC O_WDAY
static struct format rcc8000_fmt =
{ { { 13, 2 }, {16, 2}, { 19, 2}, /* Day, Month, Year */
{ 0, 2 }, { 3, 2}, { 6, 2}, /* Hour, Minute, Second */
{ 9, 3 }, {28, 1}, { 0, 0}, /* uSec, Status (Valid,Reject,BST,Leapyear) */ },
(const unsigned char *)" : : . / / \r\n",
/*"15:50:36.534 30/09/94 273 5 A\x0d\x0a" */
0
};
static unsigned long cvt_rcc8000 P((unsigned char *, int, struct format *, clocktime_t *, void *));
static unsigned long inp_rcc8000 P((parse_t *, unsigned int, timestamp_t *));
clockformat_t clock_rcc8000 =
{
inp_rcc8000, /* no input handling */
cvt_rcc8000, /* Radiocode clock conversion */
0, /* no direct PPS monitoring */
(void *)&rcc8000_fmt, /* conversion configuration */
"Radiocode RCC8000",
31, /* string buffer */
0 /* no private data */
};
static unsigned long
cvt_rcc8000(
unsigned char *buffer,
int size,
struct format *format,
clocktime_t *clock_time,
void *local
)
{
if (!Strok(buffer, format->fixed_string)) return CVT_NONE;
#define OFFS(x) format->field_offsets[(x)].offset
#define STOI(x, y) Stoi(&buffer[OFFS(x)], y, format->field_offsets[(x)].length)
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) ||
STOI(O_USEC, &clock_time->usecond)
) return CVT_FAIL|CVT_BADFMT;
clock_time->usecond *= 1000;
clock_time->utcoffset = 0;
#define RCCP buffer[28]
/*
* buffer[28] is the ASCII representation of a hex character ( 0 through F )
* The four bits correspond to:
* 8 - Valid Time
* 4 - Reject Code
* 2 - British Summer Time (receiver set to emit GMT all year.)
* 1 - Leap year
*/
#define RCC8000_VALID 0x8
#define RCC8000_REJECT 0x4
#define RCC8000_BST 0x2
#define RCC8000_LEAPY 0x1
clock_time->flags = 0;
if ( (RCCP >= '0' && RCCP <= '9') || (RCCP >= 'A' && RCCP <= 'F') )
{
register int flag;
flag = (RCCP >= '0' && RCCP <= '9' ) ? RCCP - '0' : RCCP - 'A' + 10;
if (!(flag & RCC8000_VALID))
clock_time->flags |= PARSEB_POWERUP;
clock_time->flags |= PARSEB_UTC; /* British special - guess why 8-) */
/* other flags not used */
}
return CVT_OK;
}
/*
* inp_rcc8000
*
* grep data from input stream
*/
static u_long
inp_rcc8000(
parse_t *parseio,
unsigned int ch,
timestamp_t *tstamp
)
{
unsigned int rtc;
parseprintf(DD_PARSE, ("inp_rcc8000(0x%lx, 0x%x, ...)\n", (long)parseio, ch));
switch (ch)
{
case '\n':
parseprintf(DD_PARSE, ("inp_rcc8000: EOL seen\n"));
if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
return parse_end(parseio);
else
return rtc;
default:
if (parseio->parse_index == 0) /* take sample at start of message */
{
parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
}
return parse_addchar(parseio, ch);
}
}
#else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_RCC8000) */
int clk_rcc8000_bs;
#endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_RCC8000) */
/*
* History:
*
* clk_rcc8000.c,v
* Revision 4.9 2004/11/14 15:29:41 kardel
* support PPSAPI, upgrade Copyright to Berkeley style
*
* Revision 4.6 1999/11/28 09:13:51 kardel
* RECON_4_0_98F
*
* Revision 4.5 1998/06/14 21:09:38 kardel
* Sun acc cleanup
*
* Revision 4.4 1998/06/13 12:05:02 kardel
* fix SYSV clock name clash
*
* Revision 4.3 1998/06/12 15:22:29 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 09:39:53 kardel
* implementation of the new IO handling model
*
* Revision 4.0 1998/04/10 19:45:30 kardel
* Start 4.0 release version numbering
*
* from V3 3.5 log info deleted 1998/04/11 kardel
*/