2 * /src/NTP/ntp4-dev/libparse/clk_rcc8000.c,v 4.9 2004/11/14 15:29:41 kardel RELEASE_20050508_A
4 * clk_rcc8000.c,v 4.9 2004/11/14 15:29:41 kardel RELEASE_20050508_A
6 * Radiocode Clocks Ltd RCC 8000 Intelligent Off-Air Master Clock support
8 * Created by R.E.Broughton from clk_trimtaip.c
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
20 #if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_RCC8000)
23 #include "ntp_unixtime.h"
24 #include "ntp_calendar.h"
29 #include "ntp_stdlib.h"
32 #include "sys/parsestreams.h"
33 extern void printf P((const char *, ...));
36 /* Type II Serial Output format
38 * 0000000000111111111122222222223 / char
39 * 0123456789012345678901234567890 \ posn
40 * HH:MM:SS.XYZ DD/MM/YY DDD W Prn Actual
41 * 33 44 55 666 00 11 22 7 Parse
43 * "15:50:36.534 30/09/94 273 5 A\x0d\x0a"
45 * DDD - Day of year number
46 * W - Day of week number (Sunday is 0)
47 * P is the Status. See comment below for details.
51 static struct format rcc8000_fmt =
52 { { { 13, 2 }, {16, 2}, { 19, 2}, /* Day, Month, Year */
53 { 0, 2 }, { 3, 2}, { 6, 2}, /* Hour, Minute, Second */
54 { 9, 3 }, {28, 1}, { 0, 0}, /* uSec, Status (Valid,Reject,BST,Leapyear) */ },
55 (const unsigned char *)" : : . / / \r\n",
56 /*"15:50:36.534 30/09/94 273 5 A\x0d\x0a" */
60 static unsigned long cvt_rcc8000 P((unsigned char *, int, struct format *, clocktime_t *, void *));
61 static unsigned long inp_rcc8000 P((parse_t *, unsigned int, timestamp_t *));
63 clockformat_t clock_rcc8000 =
65 inp_rcc8000, /* no input handling */
66 cvt_rcc8000, /* Radiocode clock conversion */
67 0, /* no direct PPS monitoring */
68 (void *)&rcc8000_fmt, /* conversion configuration */
70 31, /* string buffer */
71 0 /* no private data */
76 unsigned char *buffer,
78 struct format *format,
79 clocktime_t *clock_time,
83 if (!Strok(buffer, format->fixed_string)) return CVT_NONE;
84 #define OFFS(x) format->field_offsets[(x)].offset
85 #define STOI(x, y) Stoi(&buffer[OFFS(x)], y, format->field_offsets[(x)].length)
86 if ( STOI(O_DAY, &clock_time->day) ||
87 STOI(O_MONTH, &clock_time->month) ||
88 STOI(O_YEAR, &clock_time->year) ||
89 STOI(O_HOUR, &clock_time->hour) ||
90 STOI(O_MIN, &clock_time->minute) ||
91 STOI(O_SEC, &clock_time->second) ||
92 STOI(O_USEC, &clock_time->usecond)
93 ) return CVT_FAIL|CVT_BADFMT;
94 clock_time->usecond *= 1000;
96 clock_time->utcoffset = 0;
98 #define RCCP buffer[28]
100 * buffer[28] is the ASCII representation of a hex character ( 0 through F )
101 * The four bits correspond to:
104 * 2 - British Summer Time (receiver set to emit GMT all year.)
107 #define RCC8000_VALID 0x8
108 #define RCC8000_REJECT 0x4
109 #define RCC8000_BST 0x2
110 #define RCC8000_LEAPY 0x1
112 clock_time->flags = 0;
114 if ( (RCCP >= '0' && RCCP <= '9') || (RCCP >= 'A' && RCCP <= 'F') )
118 flag = (RCCP >= '0' && RCCP <= '9' ) ? RCCP - '0' : RCCP - 'A' + 10;
120 if (!(flag & RCC8000_VALID))
121 clock_time->flags |= PARSEB_POWERUP;
123 clock_time->flags |= PARSEB_UTC; /* British special - guess why 8-) */
125 /* other flags not used */
132 * grep data from input stream
143 parseprintf(DD_PARSE, ("inp_rcc8000(0x%lx, 0x%x, ...)\n", (long)parseio, ch));
148 parseprintf(DD_PARSE, ("inp_rcc8000: EOL seen\n"));
149 if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
150 return parse_end(parseio);
156 if (parseio->parse_index == 0) /* take sample at start of message */
158 parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
160 return parse_addchar(parseio, ch);
164 #else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_RCC8000) */
166 #endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_RCC8000) */
172 * Revision 4.9 2004/11/14 15:29:41 kardel
173 * support PPSAPI, upgrade Copyright to Berkeley style
175 * Revision 4.6 1999/11/28 09:13:51 kardel
178 * Revision 4.5 1998/06/14 21:09:38 kardel
181 * Revision 4.4 1998/06/13 12:05:02 kardel
182 * fix SYSV clock name clash
184 * Revision 4.3 1998/06/12 15:22:29 kardel
187 * Revision 4.2 1998/06/12 09:13:25 kardel
188 * conditional compile macros fixed
191 * Revision 4.1 1998/05/24 09:39:53 kardel
192 * implementation of the new IO handling model
194 * Revision 4.0 1998/04/10 19:45:30 kardel
195 * Start 4.0 release version numbering
197 * from V3 3.5 log info deleted 1998/04/11 kardel