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