1 /* $NetBSD: clk_hopf6021.c,v 1.6 2016/11/22 03:09:30 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@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 #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 #include "ascii.h" 31 32 #include "parse.h" 33 34 #ifndef PARSESTREAM 35 #include "ntp_stdlib.h" 36 #include <stdio.h> 37 #else 38 #include "sys/parsestreams.h" 39 extern int printf (const char *, ...); 40 #endif 41 42 /* 43 * hopf Funkuhr 6021 44 * used with 9600,8N1, 45 * UTC ueber serielle Schnittstelle 46 * Sekundenvorlauf ON 47 * ETX zum Sekundenvorlauf ON 48 * Datenstring 6021 49 * Ausgabe Uhrzeit und Datum 50 * Senden mit Steuerzeichen 51 * Senden sekuendlich 52 */ 53 54 /* 55 * Type 6021 Serial Output format 56 * 57 * 000000000011111111 / char 58 * 012345678901234567 \ position 59 * sABHHMMSSDDMMYYnre Actual 60 * C4110046231195 Parse 61 * s enr Check 62 * 63 * s = STX (0x02), e = ETX (0x03) 64 * n = NL (0x0A), r = CR (0x0D) 65 * 66 * A B - Status and weekday 67 * 68 * A - Status 69 * 70 * 8 4 2 1 71 * x x x 0 - no announcement 72 * x x x 1 - Summertime - wintertime - summertime announcement 73 * x x 0 x - Wintertime 74 * x x 1 x - Summertime 75 * 0 0 x x - Time/Date invalid 76 * 0 1 x x - Internal clock used 77 * 1 0 x x - Radio clock 78 * 1 1 x x - Radio clock highprecision 79 * 80 * B - 8 4 2 1 81 * 0 x x x - MESZ/MEZ 82 * 1 x x x - UTC 83 * x 0 0 1 - Monday 84 * x 0 1 0 - Tuesday 85 * x 0 1 1 - Wednesday 86 * x 1 0 0 - Thursday 87 * x 1 0 1 - Friday 88 * x 1 1 0 - Saturday 89 * x 1 1 1 - Sunday 90 */ 91 92 #define HOPF_DSTWARN 0x01 /* DST switch warning */ 93 #define HOPF_DST 0x02 /* DST in effect */ 94 95 #define HOPF_MODE 0x0C /* operation mode mask */ 96 #define HOPF_INVALID 0x00 /* no time code available */ 97 #define HOPF_INTERNAL 0x04 /* internal clock */ 98 #define HOPF_RADIO 0x08 /* radio clock */ 99 #define HOPF_RADIOHP 0x0C /* high precision radio clock */ 100 101 #define HOPF_UTC 0x08 /* time code in UTC */ 102 #define HOPF_WMASK 0x07 /* mask for weekday code */ 103 104 static struct format hopf6021_fmt = 105 { 106 { 107 { 9, 2 }, {11, 2}, { 13, 2}, /* Day, Month, Year */ 108 { 3, 2 }, { 5, 2}, { 7, 2}, /* Hour, Minute, Second */ 109 { 2, 1 }, { 1, 1}, { 0, 0}, /* Weekday, Flags, Zone */ 110 /* ... */ 111 }, 112 (const unsigned char *)"\002 \n\r\003", 113 0 114 }; 115 116 #define OFFS(x) format->field_offsets[(x)].offset 117 #define STOI(x, y) Stoi(&buffer[OFFS(x)], y, format->field_offsets[(x)].length) 118 119 static parse_cvt_fnc_t cvt_hopf6021; 120 static parse_inp_fnc_t inp_hopf6021; 121 static unsigned char hexval(unsigned char); 122 123 clockformat_t clock_hopf6021 = 124 { 125 inp_hopf6021, /* HOPF 6021 input handling */ 126 cvt_hopf6021, /* Radiocode clock conversion */ 127 0, /* no direct PPS monitoring */ 128 (void *)&hopf6021_fmt, /* conversion configuration */ 129 "hopf Funkuhr 6021", /* clock format name */ 130 19, /* string buffer */ 131 0 /* private data length, no private data */ 132 }; 133 134 /* parse_cvt_fnc_t cvt_hopf6021 */ 135 static u_long 136 cvt_hopf6021( 137 unsigned char *buffer, 138 int size, 139 struct format *format, 140 clocktime_t *clock_time, 141 void *local 142 ) 143 { 144 unsigned char status,weekday; 145 146 if (!Strok(buffer, format->fixed_string)) 147 { 148 return CVT_NONE; 149 } 150 151 if ( STOI(O_DAY, &clock_time->day) || 152 STOI(O_MONTH, &clock_time->month) || 153 STOI(O_YEAR, &clock_time->year) || 154 STOI(O_HOUR, &clock_time->hour) || 155 STOI(O_MIN, &clock_time->minute) || 156 STOI(O_SEC, &clock_time->second) 157 ) 158 { 159 return CVT_FAIL|CVT_BADFMT; 160 } 161 162 clock_time->usecond = 0; 163 clock_time->flags = 0; 164 165 status = hexval(buffer[OFFS(O_FLAGS)]); 166 weekday = hexval(buffer[OFFS(O_WDAY)]); 167 168 if ((status == 0xFF) || (weekday == 0xFF)) 169 { 170 return CVT_FAIL|CVT_BADFMT; 171 } 172 173 if (weekday & HOPF_UTC) 174 { 175 clock_time->flags |= PARSEB_UTC; 176 clock_time->utcoffset = 0; 177 } 178 else if (status & HOPF_DST) 179 { 180 clock_time->flags |= PARSEB_DST; 181 clock_time->utcoffset = -2*60*60; /* MET DST */ 182 } 183 else 184 { 185 clock_time->utcoffset = -1*60*60; /* MET */ 186 } 187 188 if (status & HOPF_DSTWARN) 189 { 190 clock_time->flags |= PARSEB_ANNOUNCE; 191 } 192 193 switch (status & HOPF_MODE) 194 { 195 default: /* dummy: we cover all 4 cases. */ 196 case HOPF_INVALID: /* Time/Date invalid */ 197 clock_time->flags |= PARSEB_POWERUP; 198 break; 199 200 case HOPF_INTERNAL: /* internal clock */ 201 clock_time->flags |= PARSEB_NOSYNC; 202 break; 203 204 case HOPF_RADIO: /* Radio clock */ 205 case HOPF_RADIOHP: /* Radio clock high precision */ 206 break; 207 } 208 209 return CVT_OK; 210 } 211 212 /* 213 * parse_inp_fnc_t inp_hopf6021 214 * 215 * grab data from input stream 216 */ 217 static u_long 218 inp_hopf6021( 219 parse_t *parseio, 220 char ch, 221 timestamp_t *tstamp 222 ) 223 { 224 unsigned int rtc; 225 226 parseprintf(DD_PARSE, ("inp_hopf6021(0x%p, 0x%x, ...)\n", (void*)parseio, ch)); 227 228 switch (ch) 229 { 230 case ETX: 231 parseprintf(DD_PARSE, ("inp_hopf6021: EOL seen\n")); 232 parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */ 233 if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP) 234 return parse_end(parseio); 235 else 236 return rtc; 237 238 default: 239 return parse_addchar(parseio, ch); 240 } 241 } 242 243 /* 244 * convert a hex-digit to numeric value 245 */ 246 static unsigned char 247 hexval( 248 unsigned char ch 249 ) 250 { 251 unsigned int dv; 252 253 if ((dv = ch - '0') >= 10u) 254 { 255 if ((dv -= 'A'-'0') < 6u || (dv -= 'a'-'A') < 6u) 256 { 257 dv += 10; 258 } 259 else 260 { 261 dv = 0xFF; 262 } 263 } 264 return (unsigned char)dv; 265 } 266 267 #else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_HOPF6021) */ 268 int clk_hopf6021_bs; 269 #endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_HOPF6021) */ 270 271 /* 272 * History: 273 * 274 * clk_hopf6021.c,v 275 * Revision 4.10 2004/11/14 15:29:41 kardel 276 * support PPSAPI, upgrade Copyright to Berkeley style 277 * 278 * Revision 4.7 1999/11/28 09:13:49 kardel 279 * RECON_4_0_98F 280 * 281 * Revision 4.6 1998/11/15 20:27:57 kardel 282 * Release 4.0.73e13 reconcilation 283 * 284 * Revision 4.5 1998/06/14 21:09:35 kardel 285 * Sun acc cleanup 286 * 287 * Revision 4.4 1998/06/13 12:02:38 kardel 288 * fix SYSV clock name clash 289 * 290 * Revision 4.3 1998/06/12 15:22:27 kardel 291 * fix prototypes 292 * 293 * Revision 4.2 1998/06/12 09:13:25 kardel 294 * conditional compile macros fixed 295 * printf prototype 296 * 297 * Revision 4.1 1998/05/24 09:39:52 kardel 298 * implementation of the new IO handling model 299 * 300 * Revision 4.0 1998/04/10 19:45:29 kardel 301 * Start 4.0 release version numbering 302 * 303 * from V3 3.6 log info deleted 1998/04/11 kardel 304 */ 305