Annotation of embedaddon/ntp/libparse/clk_rcc8000.c, revision 1.1
1.1 ! misho 1: /*
! 2: * /src/NTP/ntp4-dev/libparse/clk_rcc8000.c,v 4.9 2004/11/14 15:29:41 kardel RELEASE_20050508_A
! 3: *
! 4: * clk_rcc8000.c,v 4.9 2004/11/14 15:29:41 kardel RELEASE_20050508_A
! 5: *
! 6: * Radiocode Clocks Ltd RCC 8000 Intelligent Off-Air Master Clock support
! 7: *
! 8: * Created by R.E.Broughton from clk_trimtaip.c
! 9: *
! 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.
! 13: *
! 14: */
! 15:
! 16: #if HAVE_CONFIG_H
! 17: # include <config.h>
! 18: #endif
! 19:
! 20: #if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_RCC8000)
! 21:
! 22: #include "ntp_fp.h"
! 23: #include "ntp_unixtime.h"
! 24: #include "ntp_calendar.h"
! 25:
! 26: #include "parse.h"
! 27:
! 28: #ifndef PARSESTREAM
! 29: #include "ntp_stdlib.h"
! 30: #include <stdio.h>
! 31: #else
! 32: #include "sys/parsestreams.h"
! 33: extern int printf (const char *, ...);
! 34: #endif
! 35:
! 36: /* Type II Serial Output format
! 37: *
! 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
! 42: * : : . / / rn Check
! 43: * "15:50:36.534 30/09/94 273 5 A\x0d\x0a"
! 44: *
! 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.
! 48: */
! 49:
! 50: #define O_USEC O_WDAY
! 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" */
! 57: 0
! 58: };
! 59:
! 60: static unsigned long cvt_rcc8000 (unsigned char *, int, struct format *, clocktime_t *, void *);
! 61: static unsigned long inp_rcc8000 (parse_t *, unsigned int, timestamp_t *);
! 62:
! 63: clockformat_t clock_rcc8000 =
! 64: {
! 65: inp_rcc8000, /* no input handling */
! 66: cvt_rcc8000, /* Radiocode clock conversion */
! 67: 0, /* no direct PPS monitoring */
! 68: (void *)&rcc8000_fmt, /* conversion configuration */
! 69: "Radiocode RCC8000",
! 70: 31, /* string buffer */
! 71: 0 /* no private data */
! 72: };
! 73:
! 74: static unsigned long
! 75: cvt_rcc8000(
! 76: unsigned char *buffer,
! 77: int size,
! 78: struct format *format,
! 79: clocktime_t *clock_time,
! 80: void *local
! 81: )
! 82: {
! 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;
! 95:
! 96: clock_time->utcoffset = 0;
! 97:
! 98: #define RCCP buffer[28]
! 99: /*
! 100: * buffer[28] is the ASCII representation of a hex character ( 0 through F )
! 101: * The four bits correspond to:
! 102: * 8 - Valid Time
! 103: * 4 - Reject Code
! 104: * 2 - British Summer Time (receiver set to emit GMT all year.)
! 105: * 1 - Leap year
! 106: */
! 107: #define RCC8000_VALID 0x8
! 108: #define RCC8000_REJECT 0x4
! 109: #define RCC8000_BST 0x2
! 110: #define RCC8000_LEAPY 0x1
! 111:
! 112: clock_time->flags = 0;
! 113:
! 114: if ( (RCCP >= '0' && RCCP <= '9') || (RCCP >= 'A' && RCCP <= 'F') )
! 115: {
! 116: register int flag;
! 117:
! 118: flag = (RCCP >= '0' && RCCP <= '9' ) ? RCCP - '0' : RCCP - 'A' + 10;
! 119:
! 120: if (!(flag & RCC8000_VALID))
! 121: clock_time->flags |= PARSEB_POWERUP;
! 122:
! 123: clock_time->flags |= PARSEB_UTC; /* British special - guess why 8-) */
! 124:
! 125: /* other flags not used */
! 126: }
! 127: return CVT_OK;
! 128: }
! 129: /*
! 130: * inp_rcc8000
! 131: *
! 132: * grep data from input stream
! 133: */
! 134: static u_long
! 135: inp_rcc8000(
! 136: parse_t *parseio,
! 137: unsigned int ch,
! 138: timestamp_t *tstamp
! 139: )
! 140: {
! 141: unsigned int rtc;
! 142:
! 143: parseprintf(DD_PARSE, ("inp_rcc8000(0x%lx, 0x%x, ...)\n", (long)parseio, ch));
! 144:
! 145: switch (ch)
! 146: {
! 147: case '\n':
! 148: parseprintf(DD_PARSE, ("inp_rcc8000: EOL seen\n"));
! 149: if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
! 150: return parse_end(parseio);
! 151: else
! 152: return rtc;
! 153:
! 154:
! 155: default:
! 156: if (parseio->parse_index == 0) /* take sample at start of message */
! 157: {
! 158: parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
! 159: }
! 160: return parse_addchar(parseio, ch);
! 161: }
! 162: }
! 163:
! 164: #else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_RCC8000) */
! 165: int clk_rcc8000_bs;
! 166: #endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_RCC8000) */
! 167:
! 168: /*
! 169: * History:
! 170: *
! 171: * clk_rcc8000.c,v
! 172: * Revision 4.9 2004/11/14 15:29:41 kardel
! 173: * support PPSAPI, upgrade Copyright to Berkeley style
! 174: *
! 175: * Revision 4.6 1999/11/28 09:13:51 kardel
! 176: * RECON_4_0_98F
! 177: *
! 178: * Revision 4.5 1998/06/14 21:09:38 kardel
! 179: * Sun acc cleanup
! 180: *
! 181: * Revision 4.4 1998/06/13 12:05:02 kardel
! 182: * fix SYSV clock name clash
! 183: *
! 184: * Revision 4.3 1998/06/12 15:22:29 kardel
! 185: * fix prototypes
! 186: *
! 187: * Revision 4.2 1998/06/12 09:13:25 kardel
! 188: * conditional compile macros fixed
! 189: * printf prototype
! 190: *
! 191: * Revision 4.1 1998/05/24 09:39:53 kardel
! 192: * implementation of the new IO handling model
! 193: *
! 194: * Revision 4.0 1998/04/10 19:45:30 kardel
! 195: * Start 4.0 release version numbering
! 196: *
! 197: * from V3 3.5 log info deleted 1998/04/11 kardel
! 198: */
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