/contrib/ntp/ntpd/refclock_jjy.c
C | 1159 lines | 716 code | 188 blank | 255 comment | 191 complexity | 9a7c3f416ad5bc1c0de611b9ebcc6058 MD5 | raw file
1/* 2 * refclock_jjy - clock driver for JJY receivers 3 */ 4 5/**********************************************************************/ 6/* */ 7/* Copyright (C) 2001-2004, Takao Abe. All rights reserved. */ 8/* */ 9/* Permission to use, copy, modify, and distribute this software */ 10/* and its documentation for any purpose is hereby granted */ 11/* without fee, provided that the following conditions are met: */ 12/* */ 13/* One retains the entire copyright notice properly, and both the */ 14/* copyright notice and this license. in the documentation and/or */ 15/* other materials provided with the distribution. */ 16/* */ 17/* This software and the name of the author must not be used to */ 18/* endorse or promote products derived from this software without */ 19/* prior written permission. */ 20/* */ 21/* THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESSED OR IMPLIED */ 22/* WARRANTIES OF ANY KIND, INCLUDING, BUT NOT LIMITED TO, THE */ 23/* IMPLIED WARRANTIES OF MERCHANTABLILITY AND FITNESS FOR A */ 24/* PARTICULAR PURPOSE. */ 25/* IN NO EVENT SHALL THE AUTHOR TAKAO ABE BE LIABLE FOR ANY DIRECT, */ 26/* INDIRECT, GENERAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */ 27/* ( INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE */ 28/* GOODS OR SERVICES; LOSS OF USE, DATA OR PROFITS; OR BUSINESS */ 29/* INTERRUPTION ) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, */ 30/* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ( INCLUDING */ 31/* NEGLIGENCE OR OTHERWISE ) ARISING IN ANY WAY OUT OF THE USE OF */ 32/* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 33/* */ 34/* This driver is developed in my private time, and is opened as */ 35/* voluntary contributions for the NTP. */ 36/* The manufacturer of the JJY receiver has not participated in */ 37/* a development of this driver. */ 38/* The manufacturer does not warrant anything about this driver, */ 39/* and is not liable for anything about this driver. */ 40/* */ 41/**********************************************************************/ 42/* */ 43/* Author Takao Abe */ 44/* Email abetakao@bea.hi-ho.ne.jp */ 45/* Homepage http://www.bea.hi-ho.ne.jp/abetakao/ */ 46/* */ 47/**********************************************************************/ 48/* */ 49/* History */ 50/* */ 51/* 2001/07/15 */ 52/* [New] Support the Tristate Ltd. JJY receiver */ 53/* */ 54/* 2001/08/04 */ 55/* [Change] Log to clockstats even if bad reply */ 56/* [Fix] PRECISION = (-3) (about 100 ms) */ 57/* [Add] Support the C-DEX Co.Ltd. JJY receiver */ 58/* */ 59/* 2001/12/04 */ 60/* [Fix] C-DEX JST2000 ( fukusima@goto.info.waseda.ac.jp ) */ 61/* */ 62/* 2002/07/12 */ 63/* [Fix] Portability for FreeBSD ( patched by the user ) */ 64/* */ 65/* 2004/10/31 */ 66/* [Change] Command send timing for the Tristate Ltd. JJY receiver */ 67/* JJY-01 ( Firmware version 2.01 ) */ 68/* Thanks to Andy Taki for testing under FreeBSD */ 69/* */ 70/* 2004/11/28 */ 71/* [Add] Support the Echo Keisokuki LT-2000 receiver */ 72/* */ 73/* 2006/11/04 */ 74/* [Fix] C-DEX JST2000 */ 75/* Thanks to Hideo Kuramatsu for the patch */ 76/* */ 77/* 2009/04/05 */ 78/* [Add] Support the CITIZEN T.I.C JJY-200 receiver */ 79/* */ 80/**********************************************************************/ 81 82#ifdef HAVE_CONFIG_H 83#include <config.h> 84#endif 85 86#if defined(REFCLOCK) && defined(CLOCK_JJY) 87 88#include <stdio.h> 89#include <ctype.h> 90#include <string.h> 91#include <sys/time.h> 92#include <time.h> 93 94#include "ntpd.h" 95#include "ntp_io.h" 96#include "ntp_tty.h" 97#include "ntp_refclock.h" 98#include "ntp_calendar.h" 99#include "ntp_stdlib.h" 100 101/**********************************************************************/ 102/* */ 103/* The Tristate Ltd. JJY receiver JJY01 */ 104/* */ 105/* Command Response Remarks */ 106/* ------------ ---------------------- --------------------- */ 107/* date<CR><LF> YYYY/MM/DD XXX<CR><LF> */ 108/* time<CR><LF> HH:MM:SS<CR><LF> */ 109/* stim<CR><LF> HH:MM:SS<CR><LF> Reply at just second */ 110/* */ 111/* During synchronization after a receiver is turned on, */ 112/* It replies the past time from 2000/01/01 00:00:00. */ 113/* The function "refclock_process" checks the time and tells */ 114/* as an insanity time. */ 115/* */ 116/**********************************************************************/ 117/* */ 118/* The C-DEX Co. Ltd. JJY receiver JST2000 */ 119/* */ 120/* Command Response Remarks */ 121/* ------------ ---------------------- --------------------- */ 122/* <ENQ>1J<ETX> <STX>JYYMMDD HHMMSSS<ETX> */ 123/* */ 124/**********************************************************************/ 125/* */ 126/* The Echo Keisokuki Co. Ltd. JJY receiver LT2000 */ 127/* */ 128/* Command Response Remarks */ 129/* ------------ ---------------------- --------------------- */ 130/* # Mode 1 (Request&Send) */ 131/* T YYMMDDWHHMMSS<BCC1><BCC2><CR> */ 132/* C Mode 2 (Continuous) */ 133/* YYMMDDWHHMMSS<ST1><ST2><ST3><ST4><CR> */ 134/* <SUB> Second signal */ 135/* */ 136/**********************************************************************/ 137/* */ 138/* The CITIZEN T.I.C CO., LTD. JJY receiver JJY200 */ 139/* */ 140/* Command Response Remarks */ 141/* ------------ ---------------------- --------------------- */ 142/* 'XX YY/MM/DD W HH:MM:SS<CR> */ 143/* XX: OK|NG|ER */ 144/* W: 0(Monday)-6(Sunday) */ 145/* */ 146/**********************************************************************/ 147 148/* 149 * Interface definitions 150 */ 151#define DEVICE "/dev/jjy%d" /* device name and unit */ 152#define SPEED232 B9600 /* uart speed (9600 baud) */ 153#define SPEED232_TRISTATE_JJY01 B9600 /* UART speed (9600 baud) */ 154#define SPEED232_CDEX_JST2000 B9600 /* UART speed (9600 baud) */ 155#define SPEED232_ECHOKEISOKUKI_LT2000 B9600 /* UART speed (9600 baud) */ 156#define SPEED232_CITIZENTIC_JJY200 B4800 /* UART speed (4800 baud) */ 157#define REFID "JJY" /* reference ID */ 158#define DESCRIPTION "JJY Receiver" 159#define PRECISION (-3) /* precision assumed (about 100 ms) */ 160 161/* 162 * JJY unit control structure 163 */ 164struct jjyunit { 165 char unittype ; /* UNITTYPE_XXXXXXXXXX */ 166 short operationmode ; /* Echo Keisokuki LT-2000 : 1 or 2 */ 167 short version ; 168 short linediscipline ; /* LDISC_CLK or LDISC_RAW */ 169 char bPollFlag ; /* Set by jjy_pool and Reset by jjy_receive */ 170 int linecount ; 171 int lineerror ; 172 int year, month, day, hour, minute, second, msecond ; 173/* LDISC_RAW only */ 174#define MAX_LINECOUNT 8 175#define MAX_RAWBUF 64 176 int lineexpect ; 177 int charexpect [ MAX_LINECOUNT ] ; 178 int charcount ; 179 char rawbuf [ MAX_RAWBUF ] ; 180}; 181 182#define UNITTYPE_TRISTATE_JJY01 1 183#define UNITTYPE_CDEX_JST2000 2 184#define UNITTYPE_ECHOKEISOKUKI_LT2000 3 185#define UNITTYPE_CITIZENTIC_JJY200 4 186 187/* 188 * Function prototypes 189 */ 190static int jjy_start P((int, struct peer *)); 191static void jjy_shutdown P((int, struct peer *)); 192static void jjy_poll P((int, struct peer *)); 193static void jjy_poll_tristate_jjy01 P((int, struct peer *)); 194static void jjy_poll_cdex_jst2000 P((int, struct peer *)); 195static void jjy_poll_echokeisokuki_lt2000 P((int, struct peer *)); 196static void jjy_poll_citizentic_jjy200 P((int, struct peer *)); 197static void jjy_receive P((struct recvbuf *)); 198static int jjy_receive_tristate_jjy01 P((struct recvbuf *)); 199static int jjy_receive_cdex_jst2000 P((struct recvbuf *)); 200static int jjy_receive_echokeisokuki_lt2000 P((struct recvbuf *)); 201static int jjy_receive_citizentic_jjy200 P((struct recvbuf *)); 202 203/* 204 * Transfer vector 205 */ 206struct refclock refclock_jjy = { 207 jjy_start, /* start up driver */ 208 jjy_shutdown, /* shutdown driver */ 209 jjy_poll, /* transmit poll message */ 210 noentry, /* not used */ 211 noentry, /* not used */ 212 noentry, /* not used */ 213 NOFLAGS /* not used */ 214}; 215 216/* 217 * Start up driver return code 218 */ 219#define RC_START_SUCCESS 1 220#define RC_START_ERROR 0 221 222/* 223 * Local constants definition 224 */ 225 226#define MAX_LOGTEXT 64 227 228 229/**************************************************************************************************/ 230/* jjy_start - open the devices and initialize data for processing */ 231/**************************************************************************************************/ 232static int 233jjy_start ( int unit, struct peer *peer ) 234{ 235 236 struct jjyunit *up ; 237 struct refclockproc *pp ; 238 int fd ; 239 char *pDeviceName ; 240 short iDiscipline ; 241 int iSpeed232 ; 242 243#ifdef DEBUG 244 if ( debug ) { 245 printf ( "jjy_start (refclock_jjy.c) : %s mode=%d ", ntoa(&peer->srcadr), peer->ttl ) ; 246 printf ( DEVICE, unit ) ; 247 printf ( "\n" ) ; 248 } 249#endif 250 /* 251 * Open serial port 252 */ 253 if ( ! ( pDeviceName = (char*) emalloc ( strlen(DEVICE) + 10 ) ) ) { 254 return RC_START_ERROR ; 255 } 256 sprintf ( pDeviceName, DEVICE, unit ) ; 257 258 /* 259 * peer->ttl is a mode number specified by "127.127.40.X mode N" in the ntp.conf 260 */ 261 switch ( peer->ttl ) { 262 case 0 : 263 case 1 : 264 iDiscipline = LDISC_CLK ; 265 iSpeed232 = SPEED232_TRISTATE_JJY01 ; 266 break ; 267 case 2 : 268 iDiscipline = LDISC_RAW ; 269 iSpeed232 = SPEED232_CDEX_JST2000 ; 270 break ; 271 case 3 : 272 iDiscipline = LDISC_CLK ; 273 iSpeed232 = SPEED232_ECHOKEISOKUKI_LT2000 ; 274 break ; 275 case 4 : 276 iDiscipline = LDISC_CLK ; 277 iSpeed232 = SPEED232_CITIZENTIC_JJY200 ; 278 break ; 279 default : 280 msyslog ( LOG_ERR, "JJY receiver [ %s mode %d ] : Unsupported mode", 281 ntoa(&peer->srcadr), peer->ttl ) ; 282 free ( (void*) pDeviceName ) ; 283 return RC_START_ERROR ; 284 } 285 286 if ( ! ( fd = refclock_open ( pDeviceName, iSpeed232, iDiscipline ) ) ) { 287 free ( (void*) pDeviceName ) ; 288 return RC_START_ERROR ; 289 } 290 free ( (void*) pDeviceName ) ; 291 292 /* 293 * Allocate and initialize unit structure 294 */ 295 if ( ! ( up = (struct jjyunit *) emalloc (sizeof(struct jjyunit)) ) ) { 296 close ( fd ) ; 297 return RC_START_ERROR ; 298 } 299 300 memset ( (char*)up, 0, sizeof(struct jjyunit) ) ; 301 up->linediscipline = iDiscipline ; 302 303 /* 304 * peer->ttl is a mode number specified by "127.127.40.X mode N" in the ntp.conf 305 */ 306 switch ( peer->ttl ) { 307 case 0 : 308 /* 309 * The mode 0 is a default clock type at this time. 310 * But this will be change to auto-detect mode in the future. 311 */ 312 case 1 : 313 up->unittype = UNITTYPE_TRISTATE_JJY01 ; 314 up->version = 100 ; 315 up->lineexpect = 2 ; 316 up->charexpect[0] = 14 ; /* YYYY/MM/DD WWW<CR><LF> */ 317 up->charexpect[1] = 8 ; /* HH:MM:SS<CR><LF> */ 318 break ; 319 case 2 : 320 up->unittype = UNITTYPE_CDEX_JST2000 ; 321 up->lineexpect = 1 ; 322 up->charexpect[0] = 15 ; /* <STX>JYYMMDD HHMMSSS<ETX> */ 323 break ; 324 case 3 : 325 up->unittype = UNITTYPE_ECHOKEISOKUKI_LT2000 ; 326 up->operationmode = 2 ; /* Mode 2 : Continuous mode */ 327 up->lineexpect = 1 ; 328 switch ( up->operationmode ) { 329 case 1 : 330 up->charexpect[0] = 15 ; /* YYMMDDWHHMMSS<BCC1><BCC2><CR> */ 331 break ; 332 case 2 : 333 up->charexpect[0] = 17 ; /* YYMMDDWHHMMSS<ST1><ST2><ST3><ST4><CR> */ 334 break ; 335 } 336 break ; 337 case 4 : 338 up->unittype = UNITTYPE_CITIZENTIC_JJY200 ; 339 up->lineexpect = 1 ; 340 up->charexpect[0] = 23 ; /* 'XX YY/MM/DD W HH:MM:SS<CR> */ 341 break ; 342 default : 343 msyslog ( LOG_ERR, "JJY receiver [ %s mode %d ] : Unsupported mode", 344 ntoa(&peer->srcadr), peer->ttl ) ; 345 close ( fd ) ; 346 free ( (void*) up ) ; 347 return RC_START_ERROR ; 348 } 349 350 pp = peer->procptr ; 351 pp->unitptr = (caddr_t) up ; 352 pp->io.clock_recv = jjy_receive ; 353 pp->io.srcclock = (caddr_t) peer ; 354 pp->io.datalen = 0 ; 355 pp->io.fd = fd ; 356 if ( ! io_addclock(&pp->io) ) { 357 close ( fd ) ; 358 free ( (void*) up ) ; 359 return RC_START_ERROR ; 360 } 361 362 /* 363 * Initialize miscellaneous variables 364 */ 365 peer->precision = PRECISION ; 366 peer->burst = 1 ; 367 pp->clockdesc = DESCRIPTION ; 368 memcpy ( (char*)&pp->refid, REFID, strlen(REFID) ) ; 369 370 return RC_START_SUCCESS ; 371 372} 373 374 375/**************************************************************************************************/ 376/* jjy_shutdown - shutdown the clock */ 377/**************************************************************************************************/ 378static void 379jjy_shutdown ( int unit, struct peer *peer ) 380{ 381 382 struct jjyunit *up; 383 struct refclockproc *pp; 384 385 pp = peer->procptr ; 386 up = (struct jjyunit *) pp->unitptr ; 387 io_closeclock ( &pp->io ) ; 388 free ( (void*) up ) ; 389 390} 391 392 393/**************************************************************************************************/ 394/* jjy_receive - receive data from the serial interface */ 395/**************************************************************************************************/ 396static void 397jjy_receive ( struct recvbuf *rbufp ) 398{ 399 400 struct jjyunit *up ; 401 struct refclockproc *pp ; 402 struct peer *peer; 403 404 l_fp tRecvTimestamp; /* arrival timestamp */ 405 int rc ; 406 char sLogText [ MAX_LOGTEXT ] ; 407 int i, bCntrlChar ; 408 409 /* 410 * Initialize pointers and read the timecode and timestamp 411 */ 412 peer = (struct peer *) rbufp->recv_srcclock ; 413 pp = peer->procptr ; 414 up = (struct jjyunit *) pp->unitptr ; 415 416 /* 417 * Get next input line 418 */ 419 pp->lencode = refclock_gtlin ( rbufp, pp->a_lastcode, BMAX, &tRecvTimestamp ) ; 420 421 if ( up->linediscipline == LDISC_RAW ) { 422 /* 423 * The reply with <STX> and <ETX> may give a blank line 424 */ 425 if ( pp->lencode == 0 && up->charcount == 0 ) return ; 426 /* 427 * Copy received charaters to temporary buffer 428 */ 429 for ( i = 0 ; i < pp->lencode && up->charcount < MAX_RAWBUF - 2 ; i ++ , up->charcount ++ ) { 430 up->rawbuf[up->charcount] = pp->a_lastcode[i] ; 431 } 432 while ( up->charcount > 0 && up->rawbuf[0] < ' ' ) { 433 for ( i = 0 ; i < up->charcount - 1 ; i ++ ) up->rawbuf[i] = up->rawbuf[i+1] ; 434 up->charcount -- ; 435 } 436 bCntrlChar = 0 ; 437 for ( i = 0 ; i < up->charcount ; i ++ ) { 438 if ( up->rawbuf[i] < ' ' ) { 439 bCntrlChar = 1 ; 440 break ; 441 } 442 } 443 if ( pp->lencode > 0 && up->linecount < up->lineexpect ) { 444 if ( bCntrlChar == 0 && up->charcount < up->charexpect[up->linecount] ) return ; 445 } 446 up->rawbuf[up->charcount] = 0 ; 447 } else { 448 /* 449 * The reply with <CR><LF> gives a blank line 450 */ 451 if ( pp->lencode == 0 ) return ; 452 } 453 /* 454 * We get down to business 455 */ 456 457 pp->lastrec = tRecvTimestamp ; 458 459 up->linecount ++ ; 460 461 if ( up->lineerror != 0 ) return ; 462 463 switch ( up->unittype ) { 464 465 case UNITTYPE_TRISTATE_JJY01 : 466 rc = jjy_receive_tristate_jjy01 ( rbufp ) ; 467 break ; 468 469 case UNITTYPE_CDEX_JST2000 : 470 rc = jjy_receive_cdex_jst2000 ( rbufp ) ; 471 break ; 472 473 case UNITTYPE_ECHOKEISOKUKI_LT2000 : 474 rc = jjy_receive_echokeisokuki_lt2000 ( rbufp ) ; 475 break ; 476 477 case UNITTYPE_CITIZENTIC_JJY200 : 478 rc = jjy_receive_citizentic_jjy200 ( rbufp ) ; 479 break ; 480 481 default : 482 rc = 0 ; 483 break ; 484 485 } 486 487 if ( up->linediscipline == LDISC_RAW ) { 488 if ( up->linecount <= up->lineexpect && up->charcount > up->charexpect[up->linecount-1] ) { 489 for ( i = 0 ; i < up->charcount - up->charexpect[up->linecount-1] ; i ++ ) { 490 up->rawbuf[i] = up->rawbuf[i+up->charexpect[up->linecount-1]] ; 491 } 492 up->charcount -= up->charexpect[up->linecount-1] ; 493 } else { 494 up->charcount = 0 ; 495 } 496 } 497 498 if ( rc == 0 ) return ; 499 500 up->bPollFlag = 0 ; 501 502 if ( up->lineerror != 0 ) { 503 refclock_report ( peer, CEVNT_BADREPLY ) ; 504 strcpy ( sLogText, "BAD REPLY [" ) ; 505 if ( up->linediscipline == LDISC_RAW ) { 506 strncat ( sLogText, up->rawbuf, MAX_LOGTEXT - strlen ( sLogText ) - 1 ) ; 507 } else { 508 strncat ( sLogText, pp->a_lastcode, MAX_LOGTEXT - strlen ( sLogText ) - 1 ) ; 509 } 510 sLogText[MAX_LOGTEXT-1] = 0 ; 511 if ( strlen ( sLogText ) < MAX_LOGTEXT - 2 ) strcat ( sLogText, "]" ) ; 512 record_clock_stats ( &peer->srcadr, sLogText ) ; 513 return ; 514 } 515 516 pp->year = up->year ; 517 pp->day = ymd2yd ( up->year, up->month, up->day ) ; 518 pp->hour = up->hour ; 519 pp->minute = up->minute ; 520 pp->second = up->second ; 521 pp->nsec = up->msecond * 1000000; 522 523 /* 524 * JST to UTC 525 */ 526 pp->hour -= 9 ; 527 if ( pp->hour < 0 ) { 528 pp->hour += 24 ; 529 pp->day -- ; 530 if ( pp->day < 1 ) { 531 pp->year -- ; 532 pp->day = ymd2yd ( pp->year, 12, 31 ) ; 533 } 534 } 535#ifdef DEBUG 536 if ( debug ) { 537 printf ( "jjy_receive (refclock_jjy.c) : %04d/%02d/%02d %02d:%02d:%02d.%1d JST ", 538 up->year, up->month, up->day, up->hour, up->minute, up->second, up->msecond/100 ) ; 539 printf ( "( %04d/%03d %02d:%02d:%02d.%1d UTC )\n", 540 pp->year, pp->day, pp->hour, pp->minute, pp->second, (int)(pp->nsec/100000000) ) ; 541 } 542#endif 543 544 /* 545 * Process the new sample in the median filter and determine the 546 * timecode timestamp. 547 */ 548 549 sprintf ( sLogText, "%04d/%02d/%02d %02d:%02d:%02d.%1d JST", 550 up->year, up->month, up->day, up->hour, up->minute, up->second, up->msecond/100 ) ; 551 record_clock_stats ( &peer->srcadr, sLogText ) ; 552 553 if ( ! refclock_process ( pp ) ) { 554 refclock_report(peer, CEVNT_BADTIME); 555 return ; 556 } 557 558 pp->lastref = pp->lastrec; 559 refclock_receive(peer); 560 561} 562 563/**************************************************************************************************/ 564 565static int 566jjy_receive_tristate_jjy01 ( struct recvbuf *rbufp ) 567{ 568 569 static char *sFunctionName = "jjy_receive_tristate_jjy01" ; 570 571 struct jjyunit *up ; 572 struct refclockproc *pp ; 573 struct peer *peer; 574 575 char *pBuf ; 576 int iLen ; 577 int rc ; 578 579 /* 580 * Initialize pointers and read the timecode and timestamp 581 */ 582 peer = (struct peer *) rbufp->recv_srcclock ; 583 pp = peer->procptr ; 584 up = (struct jjyunit *) pp->unitptr ; 585 586 if ( up->linediscipline == LDISC_RAW ) { 587 pBuf = up->rawbuf ; 588 iLen = up->charcount ; 589 } else { 590 pBuf = pp->a_lastcode ; 591 iLen = pp->lencode ; 592 } 593 594 switch ( up->linecount ) { 595 596 case 1 : /* YYYY/MM/DD WWW */ 597 598 if ( iLen != 14 ) { 599#ifdef DEBUG 600 if ( debug >= 2 ) { 601 printf ( "%s (refclock_jjy.c) : Reply length error ( up->linecount=%d iLen=%d )\n", sFunctionName, up->linecount, iLen ) ; 602 } 603#endif 604 up->lineerror = 1 ; 605 break ; 606 } 607 rc = sscanf ( pBuf, "%4d/%2d/%2d", &up->year, &up->month, &up->day ) ; 608 if ( rc != 3 || up->year < 2000 || up->month < 1 || up->month > 12 || up->day < 1 || up->day > 31 ) { 609#ifdef DEBUG 610 if ( debug >= 2 ) { 611 printf ( "%s (refclock_jjy.c) : Date error ( up->linecount=%d )\n", sFunctionName, up->linecount ) ; 612 } 613#endif 614 up->lineerror = 1 ; 615 break ; 616 } 617 618 /*** Start of modification on 2004/10/31 */ 619 /* 620 * Following codes are moved from the function jjy_poll_tristate_jjy01 in this source. 621 * The Tristate JJY-01 ( Firmware version 1.01 ) accepts "time" and "stim" commands without any delay. 622 * But the JJY-01 ( Firmware version 2.01 ) does not accept these commands continuously, 623 * so this driver issues the second command "stim" after the reply of the first command "date". 624 */ 625 626 /* 627 * Send "stim<CR><LF>" or "time<CR><LF>" command 628 */ 629 630 631 if ( up->version >= 100 ) { 632#ifdef DEBUG 633 if ( debug ) { 634 printf ( "%s (refclock_jjy.c) : send 'stim<CR><LF>'\n", sFunctionName ) ; 635 } 636#endif 637 if ( write ( pp->io.fd, "stim\r\n",6 ) != 6 ) { 638 refclock_report ( peer, CEVNT_FAULT ) ; 639 } 640 } else { 641#ifdef DEBUG 642 if ( debug ) { 643 printf ( "%s (refclock_jjy.c) : send 'time<CR><LF>'\n", sFunctionName ) ; 644 } 645#endif 646 if ( write ( pp->io.fd, "time\r\n",6 ) != 6 ) { 647 refclock_report ( peer, CEVNT_FAULT ) ; 648 } 649 } 650 /*** End of modification ***/ 651 652 return 0 ; 653 654 case 2 : /* HH:MM:SS */ 655 656 if ( iLen != 8 ) { 657#ifdef DEBUG 658 if ( debug >= 2 ) { 659 printf ( "%s (refclock_jjy.c) : Reply length error ( up->linecount=%d iLen=%d )\n", sFunctionName, up->linecount, iLen ) ; 660 } 661#endif 662 up->lineerror = 1 ; 663 break ; 664 } 665 rc = sscanf ( pBuf, "%2d:%2d:%2d", &up->hour, &up->minute, &up->second ) ; 666 if ( rc != 3 || up->hour > 23 || up->minute > 59 || up->second > 60 ) { 667#ifdef DEBUG 668 if ( debug >= 2 ) { 669 printf ( "%s (refclock_jjy.c) : Time error ( up->linecount=%d )\n", sFunctionName, up->linecount ) ; 670 } 671#endif 672 up->lineerror = 1 ; 673 break ; 674 } 675 up->msecond = 0 ; 676 if ( up->hour == 0 && up->minute == 0 && up->second <= 2 ) { 677 /* 678 * The command "date" and "time" ( or "stim" ) were sent to the JJY receiver continuously. 679 * But the JJY receiver replies a date and time separately. 680 * Just after midnight transitions, we ignore this time. 681 */ 682 return 0 ; 683 } 684 break ; 685 686 default : /* Unexpected reply */ 687 688 up->lineerror = 1 ; 689 break ; 690 691 } 692 693 return 1 ; 694 695} 696 697/**************************************************************************************************/ 698 699static int 700jjy_receive_cdex_jst2000 ( struct recvbuf *rbufp ) 701{ 702 703 static char *sFunctionName = "jjy_receive_cdex_jst2000" ; 704 705 struct jjyunit *up ; 706 struct refclockproc *pp ; 707 struct peer *peer; 708 709 char *pBuf ; 710 int iLen ; 711 int rc ; 712 713 /* 714 * Initialize pointers and read the timecode and timestamp 715 */ 716 peer = (struct peer *) rbufp->recv_srcclock ; 717 pp = peer->procptr ; 718 up = (struct jjyunit *) pp->unitptr ; 719 720 if ( up->linediscipline == LDISC_RAW ) { 721 pBuf = up->rawbuf ; 722 iLen = up->charcount ; 723 } else { 724 pBuf = pp->a_lastcode ; 725 iLen = pp->lencode ; 726 } 727 728 switch ( up->linecount ) { 729 730 case 1 : /* JYYMMDD HHMMSSS */ 731 732 if ( iLen != 15 ) { 733#ifdef DEBUG 734 if ( debug >= 2 ) { 735 printf ( "%s (refclock_jjy.c) : Reply length error ( iLen=%d )\n", sFunctionName, iLen ) ; 736 } 737#endif 738 up->lineerror = 1 ; 739 break ; 740 } 741 rc = sscanf ( pBuf, "J%2d%2d%2d%*1d%2d%2d%2d%1d", 742 &up->year, &up->month, &up->day, &up->hour, &up->minute, &up->second, &up->msecond ) ; 743 if ( rc != 7 || up->month < 1 || up->month > 12 || up->day < 1 || up->day > 31 744 || up->hour > 23 || up->minute > 59 || up->second > 60 ) { 745#ifdef DEBUG 746 if ( debug >= 2 ) { 747 printf ( "%s (refclock_jjy.c) : Time error (rc=%d) [ %02d %02d %02d * %02d %02d %02d.%1d ]\n", sFunctionName, 748 rc, up->year, up->month, up->day, up->hour, up->minute, up->second, up->msecond ) ; 749 } 750#endif 751 up->lineerror = 1 ; 752 break ; 753 } 754 up->year += 2000 ; 755 up->msecond *= 100 ; 756 break ; 757 758 default : /* Unexpected reply */ 759 760 up->lineerror = 1 ; 761 break ; 762 763 } 764 765 return 1 ; 766 767} 768 769/**************************************************************************************************/ 770 771static int 772jjy_receive_echokeisokuki_lt2000 ( struct recvbuf *rbufp ) 773{ 774 775 static char *sFunctionName = "jjy_receive_echokeisokuki_lt2000" ; 776 777 struct jjyunit *up ; 778 struct refclockproc *pp ; 779 struct peer *peer; 780 781 char *pBuf ; 782 int iLen ; 783 int rc ; 784 int i, ibcc, ibcc1, ibcc2 ; 785 786 /* 787 * Initialize pointers and read the timecode and timestamp 788 */ 789 peer = (struct peer *) rbufp->recv_srcclock ; 790 pp = peer->procptr ; 791 up = (struct jjyunit *) pp->unitptr ; 792 793 if ( up->linediscipline == LDISC_RAW ) { 794 pBuf = up->rawbuf ; 795 iLen = up->charcount ; 796 } else { 797 pBuf = pp->a_lastcode ; 798 iLen = pp->lencode ; 799 } 800 801 switch ( up->linecount ) { 802 803 case 1 : /* YYMMDDWHHMMSS<BCC1><BCC2> or YYMMDDWHHMMSS<ST1><ST2><ST3><ST4> */ 804 805 if ( ( up->operationmode == 1 && iLen != 15 ) || ( up->operationmode == 2 && iLen != 17 ) ) { 806#ifdef DEBUG 807 if ( debug >= 2 ) { 808 printf ( "%s (refclock_jjy.c) : Reply length error ( iLen=%d )\n", sFunctionName, iLen ) ; 809 } 810#endif 811 if ( up->operationmode == 1 ) { 812#ifdef DEBUG 813 if ( debug ) { 814 printf ( "%s (refclock_jjy.c) : send '#'\n", sFunctionName ) ; 815 } 816#endif 817 if ( write ( pp->io.fd, "#",1 ) != 1 ) { 818 refclock_report ( peer, CEVNT_FAULT ) ; 819 } 820 } 821 up->lineerror = 1 ; 822 break ; 823 } 824 825 if ( up->operationmode == 1 ) { 826 827 for ( i = ibcc = 0 ; i < 13 ; i ++ ) ibcc ^= pBuf[i] ; 828 ibcc1 = 0x30 | ( ( ibcc >> 4 ) & 0xF ) ; 829 ibcc2 = 0x30 | ( ( ibcc ) & 0xF ) ; 830 if ( pBuf[13] != ibcc1 || pBuf[14] != ibcc2 ) { 831#ifdef DEBUG 832 if ( debug >= 2 ) { 833 printf ( "%s (refclock_jjy.c) : BCC error ( Recv=%02X,%02X / Calc=%02X,%02X)\n", sFunctionName, pBuf[13]&0xFF, pBuf[14]&0xFF, ibcc1, ibcc2 ) ; 834 } 835#endif 836 up->lineerror = 1 ; 837 break ; 838 } 839 840 } 841 842 rc = sscanf ( pBuf, "%2d%2d%2d%*1d%2d%2d%2d", 843 &up->year, &up->month, &up->day, &up->hour, &up->minute, &up->second ) ; 844 if ( rc != 6 || up->month < 1 || up->month > 12 || up->day < 1 || up->day > 31 845 || up->hour > 23 || up->minute > 59 || up->second > 60 ) { 846#ifdef DEBUG 847 if ( debug >= 2 ) { 848 printf ( "%s (refclock_jjy.c) : Time error (rc=%d) [ %02d %02d %02d * %02d %02d %02d ]\n", sFunctionName, 849 rc, up->year, up->month, up->day, up->hour, up->minute, up->second ) ; 850 } 851#endif 852 up->lineerror = 1 ; 853 break ; 854 } 855 856 up->year += 2000 ; 857 858 if ( up->operationmode == 2 ) { 859 860 /* A time stamp comes on every 0.5 seccond in the mode 2 of the LT-2000. */ 861 up->msecond = 500 ; 862 pp->second -- ; 863 if ( pp->second < 0 ) { 864 pp->second = 59 ; 865 pp->minute -- ; 866 if ( pp->minute < 0 ) { 867 pp->minute = 59 ; 868 pp->hour -- ; 869 if ( pp->hour < 0 ) { 870 pp->hour = 23 ; 871 pp->day -- ; 872 if ( pp->day < 1 ) { 873 pp->year -- ; 874 pp->day = ymd2yd ( pp->year, 12, 31 ) ; 875 } 876 } 877 } 878 } 879 880 /* Switch from mode 2 to mode 1 in order to restraint of useless time stamp. */ 881#ifdef DEBUG 882 if ( debug ) { 883 printf ( "%s (refclock_jjy.c) : send '#'\n", sFunctionName ) ; 884 } 885#endif 886 if ( write ( pp->io.fd, "#",1 ) != 1 ) { 887 refclock_report ( peer, CEVNT_FAULT ) ; 888 } 889 890 } 891 892 break ; 893 894 default : /* Unexpected reply */ 895 896#ifdef DEBUG 897 if ( debug ) { 898 printf ( "%s (refclock_jjy.c) : send '#'\n", sFunctionName ) ; 899 } 900#endif 901 if ( write ( pp->io.fd, "#",1 ) != 1 ) { 902 refclock_report ( peer, CEVNT_FAULT ) ; 903 } 904 905 up->lineerror = 1 ; 906 break ; 907 908 } 909 910 return 1 ; 911 912} 913 914/**************************************************************************************************/ 915 916static int 917jjy_receive_citizentic_jjy200 ( struct recvbuf *rbufp ) 918{ 919 920 static char *sFunctionName = "jjy_receive_citizentic_jjy200" ; 921 922 struct jjyunit *up ; 923 struct refclockproc *pp ; 924 struct peer *peer; 925 926 char *pBuf ; 927 int iLen ; 928 int rc ; 929 char cApostrophe, sStatus[3] ; 930 int iWeekday ; 931 932 /* 933 * Initialize pointers and read the timecode and timestamp 934 */ 935 peer = (struct peer *) rbufp->recv_srcclock ; 936 pp = peer->procptr ; 937 up = (struct jjyunit *) pp->unitptr ; 938 939 if ( up->linediscipline == LDISC_RAW ) { 940 pBuf = up->rawbuf ; 941 iLen = up->charcount ; 942 } else { 943 pBuf = pp->a_lastcode ; 944 iLen = pp->lencode ; 945 } 946 947 /* 948 * JJY-200 sends a timestamp every second. 949 * So, a timestamp is ignored unless it is right after polled. 950 */ 951 if ( ! up->bPollFlag ) return 0 ; 952 953 switch ( up->linecount ) { 954 955 case 1 : /* 'XX YY/MM/DD W HH:MM:SS<CR> */ 956 957 if ( iLen != 23 ) { 958#ifdef DEBUG 959 if ( debug >= 2 ) { 960 printf ( "%s (refclock_jjy.c) : Reply length error ( iLen=%d )\n", sFunctionName, iLen ) ; 961 } 962#endif 963 up->lineerror = 1 ; 964 break ; 965 } 966 967 rc = sscanf ( pBuf, "%c%2s %2d/%2d/%2d %1d %2d:%2d:%2d", 968 &cApostrophe, sStatus, 969 &up->year, &up->month, &up->day, &iWeekday, &up->hour, &up->minute, &up->second ) ; 970 sStatus[2] = 0 ; 971 if ( rc != 9 || cApostrophe != '\'' || strcmp( sStatus, "OK" ) != 0 972 || up->month < 1 || up->month > 12 || up->day < 1 || up->day > 31 973 || iWeekday > 6 974 || up->hour > 23 || up->minute > 59 || up->second > 60 ) { 975#ifdef DEBUG 976 if ( debug >= 2 ) { 977 printf ( "%s (refclock_jjy.c) : Time error (rc=%d) [ %c %2s %02d %02d %02d %d %02d %02d %02d ]\n", sFunctionName, 978 rc, cApostrophe, sStatus, up->year, up->month, up->day, iWeekday, up->hour, up->minute, up->second ) ; 979 } 980#endif 981 up->lineerror = 1 ; 982 break ; 983 } 984 985 up->year += 2000 ; 986 up->msecond = 0 ; 987 988 break ; 989 990 default : /* Unexpected reply */ 991 992 up->lineerror = 1 ; 993 break ; 994 995 } 996 997 return 1 ; 998 999} 1000 1001/**************************************************************************************************/ 1002/* jjy_poll - called by the transmit procedure */ 1003/**************************************************************************************************/ 1004static void 1005jjy_poll ( int unit, struct peer *peer ) 1006{ 1007 1008 struct jjyunit *up; 1009 struct refclockproc *pp; 1010 1011 pp = peer->procptr; 1012 up = (struct jjyunit *) pp->unitptr ; 1013 1014 if ( pp->polls > 0 && up->linecount == 0 ) { 1015 /* 1016 * No reply for last command 1017 */ 1018 refclock_report ( peer, CEVNT_TIMEOUT ) ; 1019 } 1020 1021#ifdef DEBUG 1022 if ( debug ) { 1023 printf ( "jjy_poll (refclock_jjy.c) : %ld\n", pp->polls ) ; 1024 } 1025#endif 1026 1027 pp->polls ++ ; 1028 1029 up->bPollFlag = 1 ; 1030 up->linecount = 0 ; 1031 up->lineerror = 0 ; 1032 up->charcount = 0 ; 1033 1034 switch ( up->unittype ) { 1035 1036 case UNITTYPE_TRISTATE_JJY01 : 1037 jjy_poll_tristate_jjy01 ( unit, peer ) ; 1038 break ; 1039 1040 case UNITTYPE_CDEX_JST2000 : 1041 jjy_poll_cdex_jst2000 ( unit, peer ) ; 1042 break ; 1043 1044 case UNITTYPE_ECHOKEISOKUKI_LT2000 : 1045 jjy_poll_echokeisokuki_lt2000 ( unit, peer ) ; 1046 break ; 1047 1048 case UNITTYPE_CITIZENTIC_JJY200 : 1049 jjy_poll_citizentic_jjy200 ( unit, peer ) ; 1050 break ; 1051 1052 default : 1053 break ; 1054 1055 } 1056 1057} 1058 1059/**************************************************************************************************/ 1060 1061static void 1062jjy_poll_tristate_jjy01 ( int unit, struct peer *peer ) 1063{ 1064 1065 struct refclockproc *pp; 1066 1067 pp = peer->procptr; 1068 1069 /* 1070 * Send "date<CR><LF>" command 1071 */ 1072 1073#ifdef DEBUG 1074 if ( debug ) { 1075 printf ( "jjy_poll_tristate_jjy01 (refclock_jjy.c) : send 'date<CR><LF>'\n" ) ; 1076 } 1077#endif 1078 1079 if ( write ( pp->io.fd, "date\r\n",6 ) != 6 ) { 1080 refclock_report ( peer, CEVNT_FAULT ) ; 1081 } 1082 1083} 1084 1085/**************************************************************************************************/ 1086 1087static void 1088jjy_poll_cdex_jst2000 ( int unit, struct peer *peer ) 1089{ 1090 1091 struct refclockproc *pp; 1092 1093 pp = peer->procptr; 1094 1095 /* 1096 * Send "<ENQ>1J<ETX>" command 1097 */ 1098 1099#ifdef DEBUG 1100 if ( debug ) { 1101 printf ( "jjy_poll_cdex_jst2000 (refclock_jjy.c) : send '<ENQ>1J<ETX>'\n" ) ; 1102 } 1103#endif 1104 1105 if ( write ( pp->io.fd, "\0051J\003", 4 ) != 4 ) { 1106 refclock_report ( peer, CEVNT_FAULT ) ; 1107 } 1108 1109} 1110 1111/**************************************************************************************************/ 1112 1113static void 1114jjy_poll_echokeisokuki_lt2000 ( int unit, struct peer *peer ) 1115{ 1116 1117 struct jjyunit *up; 1118 struct refclockproc *pp; 1119 1120 char sCmd[2] ; 1121 1122 pp = peer->procptr; 1123 up = (struct jjyunit *) pp->unitptr ; 1124 1125 /* 1126 * Send "T" or "C" command 1127 */ 1128 1129 switch ( up->operationmode ) { 1130 case 1 : sCmd[0] = 'T' ; break ; 1131 case 2 : sCmd[0] = 'C' ; break ; 1132 } 1133 sCmd[1] = 0 ; 1134 1135#ifdef DEBUG 1136 if ( debug ) { 1137 printf ( "jjy_poll_echokeisokuki_lt2000 (refclock_jjy.c) : send '%s'\n", sCmd ) ; 1138 } 1139#endif 1140 1141 if ( write ( pp->io.fd, sCmd, 1 ) != 1 ) { 1142 refclock_report ( peer, CEVNT_FAULT ) ; 1143 } 1144 1145} 1146 1147/**************************************************************************************************/ 1148 1149static void 1150jjy_poll_citizentic_jjy200 ( int unit, struct peer *peer ) 1151{ 1152 1153 /* Do nothing ( up->bPollFlag is set by the jjy_poll ) */ 1154 1155} 1156 1157#else 1158int refclock_jjy_bs ; 1159#endif /* REFCLOCK */