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 parse_cvt_fnc_t cvt_rcc8000; 61 static parse_inp_fnc_t inp_rcc8000; 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 /* parse_cvt_fnc_t cvt_rcc8000 */ 75 static u_long 76 cvt_rcc8000( 77 unsigned char *buffer, 78 int size, 79 struct format *format, 80 clocktime_t *clock_time, 81 void *local 82 ) 83 { 84 if (!Strok(buffer, format->fixed_string)) return CVT_NONE; 85 #define OFFS(x) format->field_offsets[(x)].offset 86 #define STOI(x, y) Stoi(&buffer[OFFS(x)], y, format->field_offsets[(x)].length) 87 if ( STOI(O_DAY, &clock_time->day) || 88 STOI(O_MONTH, &clock_time->month) || 89 STOI(O_YEAR, &clock_time->year) || 90 STOI(O_HOUR, &clock_time->hour) || 91 STOI(O_MIN, &clock_time->minute) || 92 STOI(O_SEC, &clock_time->second) || 93 STOI(O_USEC, &clock_time->usecond) 94 ) return CVT_FAIL|CVT_BADFMT; 95 clock_time->usecond *= 1000; 96 97 clock_time->utcoffset = 0; 98 99 #define RCCP buffer[28] 100 /* 101 * buffer[28] is the ASCII representation of a hex character ( 0 through F ) 102 * The four bits correspond to: 103 * 8 - Valid Time 104 * 4 - Reject Code 105 * 2 - British Summer Time (receiver set to emit GMT all year.) 106 * 1 - Leap year 107 */ 108 #define RCC8000_VALID 0x8 109 #define RCC8000_REJECT 0x4 110 #define RCC8000_BST 0x2 111 #define RCC8000_LEAPY 0x1 112 113 clock_time->flags = 0; 114 115 if ( (RCCP >= '0' && RCCP <= '9') || (RCCP >= 'A' && RCCP <= 'F') ) 116 { 117 register int flag; 118 119 flag = (RCCP >= '0' && RCCP <= '9' ) ? RCCP - '0' : RCCP - 'A' + 10; 120 121 if (!(flag & RCC8000_VALID)) 122 clock_time->flags |= PARSEB_POWERUP; 123 124 clock_time->flags |= PARSEB_UTC; /* British special - guess why 8-) */ 125 126 /* other flags not used */ 127 } 128 return CVT_OK; 129 } 130 /* 131 * parse_inp_fnc_t inp_rcc8000 132 * 133 * grab data from input stream 134 */ 135 static u_long 136 inp_rcc8000( 137 parse_t *parseio, 138 char ch, 139 timestamp_t *tstamp 140 ) 141 { 142 unsigned int rtc; 143 144 parseprintf(DD_PARSE, ("inp_rcc8000(0x%p, 0x%x, ...)\n", (void*)parseio, ch)); 145 146 switch (ch) 147 { 148 case '\n': 149 parseprintf(DD_PARSE, ("inp_rcc8000: EOL seen\n")); 150 if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP) 151 return parse_end(parseio); 152 else 153 return rtc; 154 155 156 default: 157 if (parseio->parse_index == 0) /* take sample at start of message */ 158 { 159 parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */ 160 } 161 return parse_addchar(parseio, ch); 162 } 163 } 164 165 #else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_RCC8000) */ 166 NONEMPTY_TRANSLATION_UNIT 167 #endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_RCC8000) */ 168 169 /* 170 * History: 171 * 172 * clk_rcc8000.c,v 173 * Revision 4.9 2004/11/14 15:29:41 kardel 174 * support PPSAPI, upgrade Copyright to Berkeley style 175 * 176 * Revision 4.6 1999/11/28 09:13:51 kardel 177 * RECON_4_0_98F 178 * 179 * Revision 4.5 1998/06/14 21:09:38 kardel 180 * Sun acc cleanup 181 * 182 * Revision 4.4 1998/06/13 12:05:02 kardel 183 * fix SYSV clock name clash 184 * 185 * Revision 4.3 1998/06/12 15:22:29 kardel 186 * fix prototypes 187 * 188 * Revision 4.2 1998/06/12 09:13:25 kardel 189 * conditional compile macros fixed 190 * printf prototype 191 * 192 * Revision 4.1 1998/05/24 09:39:53 kardel 193 * implementation of the new IO handling model 194 * 195 * Revision 4.0 1998/04/10 19:45:30 kardel 196 * Start 4.0 release version numbering 197 * 198 * from V3 3.5 log info deleted 1998/04/11 kardel 199 */ 200