1 /* $NetBSD: clk_hopf6021.c,v 1.8 2024/08/18 20:47:17 christos Exp $ */ 2 3 /* 4 * /src/NTP/ntp4-dev/libparse/clk_hopf6021.c,v 4.10 2004/11/14 15:29:41 kardel RELEASE_20050508_A 5 * 6 * clk_hopf6021.c,v 4.10 2004/11/14 15:29:41 kardel RELEASE_20050508_A 7 * 8 * Radiocode Clocks HOPF Funkuhr 6021 mit serieller Schnittstelle 9 * base code version from 24th Nov 1995 - history at end 10 * 11 * Created by F.Schnekenbuehl <frank (at) comsys.dofn.de> from clk_rcc8000.c 12 * Nortel DASA Network Systems GmbH, Department: ND250 13 * A Joint venture of Daimler-Benz Aerospace and Nortel 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 18 * 19 */ 20 21 #ifdef HAVE_CONFIG_H 22 # include <config.h> 23 #endif 24 25 #include "ntp_types.h" 26 27 #if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_HOPF6021) 28 29 #include "ntp_fp.h" 30 #include "ntp_unixtime.h" 31 #include "ntp_calendar.h" 32 33 #include "parse.h" 34 35 #ifndef PARSESTREAM 36 #include "ntp_stdlib.h" 37 #include <stdio.h> 38 #else 39 #include "sys/parsestreams.h" 40 extern int printf (const char *, ...); 41 #endif 42 43 #include "ascii.h" 44 45 /* 46 * hopf Funkuhr 6021 47 * used with 9600,8N1, 48 * UTC ueber serielle Schnittstelle 49 * Sekundenvorlauf ON 50 * ETX zum Sekundenvorlauf ON 51 * Datenstring 6021 52 * Ausgabe Uhrzeit und Datum 53 * Senden mit Steuerzeichen 54 * Senden sekuendlich 55 */ 56 57 /* 58 * Type 6021 Serial Output format 59 * 60 * 000000000011111111 / char 61 * 012345678901234567 \ position 62 * sABHHMMSSDDMMYYnre Actual 63 * C4110046231195 Parse 64 * s enr Check 65 * 66 * s = STX (0x02), e = ETX (0x03) 67 * n = NL (0x0A), r = CR (0x0D) 68 * 69 * A B - Status and weekday 70 * 71 * A - Status 72 * 73 * 8 4 2 1 74 * x x x 0 - no announcement 75 * x x x 1 - Summertime - wintertime - summertime announcement 76 * x x 0 x - Wintertime 77 * x x 1 x - Summertime 78 * 0 0 x x - Time/Date invalid 79 * 0 1 x x - Internal clock used 80 * 1 0 x x - Radio clock 81 * 1 1 x x - Radio clock highprecision 82 * 83 * B - 8 4 2 1 84 * 0 x x x - MESZ/MEZ 85 * 1 x x x - UTC 86 * x 0 0 1 - Monday 87 * x 0 1 0 - Tuesday 88 * x 0 1 1 - Wednesday 89 * x 1 0 0 - Thursday 90 * x 1 0 1 - Friday 91 * x 1 1 0 - Saturday 92 * x 1 1 1 - Sunday 93 */ 94 95 #define HOPF_DSTWARN 0x01 /* DST switch warning */ 96 #define HOPF_DST 0x02 /* DST in effect */ 97 98 #define HOPF_MODE 0x0C /* operation mode mask */ 99 #define HOPF_INVALID 0x00 /* no time code available */ 100 #define HOPF_INTERNAL 0x04 /* internal clock */ 101 #define HOPF_RADIO 0x08 /* radio clock */ 102 #define HOPF_RADIOHP 0x0C /* high precision radio clock */ 103 104 #define HOPF_UTC 0x08 /* time code in UTC */ 105 #define HOPF_WMASK 0x07 /* mask for weekday code */ 106 107 static struct format hopf6021_fmt = 108 { 109 { 110 { 9, 2 }, {11, 2}, { 13, 2}, /* Day, Month, Year */ 111 { 3, 2 }, { 5, 2}, { 7, 2}, /* Hour, Minute, Second */ 112 { 2, 1 }, { 1, 1}, { 0, 0}, /* Weekday, Flags, Zone */ 113 /* ... */ 114 }, 115 (const unsigned char *)"\002 \n\r\003", 116 0 117 }; 118 119 #define OFFS(x) format->field_offsets[(x)].offset 120 #define STOI(x, y) Stoi(&buffer[OFFS(x)], y, format->field_offsets[(x)].length) 121 122 static parse_cvt_fnc_t cvt_hopf6021; 123 static parse_inp_fnc_t inp_hopf6021; 124 static unsigned char hexval(unsigned char); 125 126 clockformat_t clock_hopf6021 = 127 { 128 inp_hopf6021, /* HOPF 6021 input handling */ 129 cvt_hopf6021, /* Radiocode clock conversion */ 130 0, /* no direct PPS monitoring */ 131 (void *)&hopf6021_fmt, /* conversion configuration */ 132 "hopf Funkuhr 6021", /* clock format name */ 133 19, /* string buffer */ 134 0 /* private data length, no private data */ 135 }; 136 137 /* parse_cvt_fnc_t cvt_hopf6021 */ 138 static u_long 139 cvt_hopf6021( 140 unsigned char *buffer, 141 int size, 142 struct format *format, 143 clocktime_t *clock_time, 144 void *local 145 ) 146 { 147 unsigned char status,weekday; 148 149 if (!Strok(buffer, format->fixed_string)) 150 { 151 return CVT_NONE; 152 } 153 154 if ( STOI(O_DAY, &clock_time->day) || 155 STOI(O_MONTH, &clock_time->month) || 156 STOI(O_YEAR, &clock_time->year) || 157 STOI(O_HOUR, &clock_time->hour) || 158 STOI(O_MIN, &clock_time->minute) || 159 STOI(O_SEC, &clock_time->second) 160 ) 161 { 162 return CVT_FAIL|CVT_BADFMT; 163 } 164 165 clock_time->usecond = 0; 166 clock_time->flags = 0; 167 168 status = hexval(buffer[OFFS(O_FLAGS)]); 169 weekday = hexval(buffer[OFFS(O_WDAY)]); 170 171 if ((status == 0xFF) || (weekday == 0xFF)) 172 { 173 return CVT_FAIL|CVT_BADFMT; 174 } 175 176 if (weekday & HOPF_UTC) 177 { 178 clock_time->flags |= PARSEB_UTC; 179 clock_time->utcoffset = 0; 180 } 181 else if (status & HOPF_DST) 182 { 183 clock_time->flags |= PARSEB_DST; 184 clock_time->utcoffset = -2*60*60; /* MET DST */ 185 } 186 else 187 { 188 clock_time->utcoffset = -1*60*60; /* MET */ 189 } 190 191 if (status & HOPF_DSTWARN) 192 { 193 clock_time->flags |= PARSEB_ANNOUNCE; 194 } 195 196 switch (status & HOPF_MODE) 197 { 198 default: /* dummy: we cover all 4 cases. */ 199 case HOPF_INVALID: /* Time/Date invalid */ 200 clock_time->flags |= PARSEB_POWERUP; 201 break; 202 203 case HOPF_INTERNAL: /* internal clock */ 204 clock_time->flags |= PARSEB_NOSYNC; 205 break; 206 207 case HOPF_RADIO: /* Radio clock */ 208 case HOPF_RADIOHP: /* Radio clock high precision */ 209 break; 210 } 211 212 return CVT_OK; 213 } 214 215 /* 216 * parse_inp_fnc_t inp_hopf6021 217 * 218 * grab data from input stream 219 */ 220 static u_long 221 inp_hopf6021( 222 parse_t *parseio, 223 char ch, 224 timestamp_t *tstamp 225 ) 226 { 227 unsigned int rtc; 228 229 parseprintf(DD_PARSE, ("inp_hopf6021(0x%p, 0x%x, ...)\n", (void*)parseio, ch)); 230 231 switch (ch) 232 { 233 case ETX: 234 parseprintf(DD_PARSE, ("inp_hopf6021: EOL seen\n")); 235 parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */ 236 if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP) 237 return parse_end(parseio); 238 else 239 return rtc; 240 241 default: 242 return parse_addchar(parseio, ch); 243 } 244 } 245 246 /* 247 * convert a hex-digit to numeric value 248 */ 249 static unsigned char 250 hexval( 251 unsigned char ch 252 ) 253 { 254 unsigned int dv; 255 256 if ((dv = ch - '0') >= 10u) 257 { 258 if ((dv -= 'A'-'0') < 6u || (dv -= 'a'-'A') < 6u) 259 { 260 dv += 10; 261 } 262 else 263 { 264 dv = 0xFF; 265 } 266 } 267 return (unsigned char)dv; 268 } 269 270 #else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_HOPF6021) */ 271 NONEMPTY_TRANSLATION_UNIT 272 #endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_HOPF6021) */ 273 274 /* 275 * History: 276 * 277 * clk_hopf6021.c,v 278 * Revision 4.10 2004/11/14 15:29:41 kardel 279 * support PPSAPI, upgrade Copyright to Berkeley style 280 * 281 * Revision 4.7 1999/11/28 09:13:49 kardel 282 * RECON_4_0_98F 283 * 284 * Revision 4.6 1998/11/15 20:27:57 kardel 285 * Release 4.0.73e13 reconcilation 286 * 287 * Revision 4.5 1998/06/14 21:09:35 kardel 288 * Sun acc cleanup 289 * 290 * Revision 4.4 1998/06/13 12:02:38 kardel 291 * fix SYSV clock name clash 292 * 293 * Revision 4.3 1998/06/12 15:22:27 kardel 294 * fix prototypes 295 * 296 * Revision 4.2 1998/06/12 09:13:25 kardel 297 * conditional compile macros fixed 298 * printf prototype 299 * 300 * Revision 4.1 1998/05/24 09:39:52 kardel 301 * implementation of the new IO handling model 302 * 303 * Revision 4.0 1998/04/10 19:45:29 kardel 304 * Start 4.0 release version numbering 305 * 306 * from V3 3.6 log info deleted 1998/04/11 kardel 307 */ 308
Indexes created Sun Oct 11 00:26:46 UTC 2026