refclock_parse.c revision 344884
1/* 2 * /src/NTP/REPOSITORY/ntp4-dev/ntpd/refclock_parse.c,v 4.81 2009/05/01 10:15:29 kardel RELEASE_20090105_A 3 * 4 * refclock_parse.c,v 4.81 2009/05/01 10:15:29 kardel RELEASE_20090105_A 5 * 6 * generic reference clock driver for several DCF/GPS/MSF/... receivers 7 * 8 * PPS notes: 9 * On systems that support PPSAPI (RFC2783) PPSAPI is the 10 * preferred interface. 11 * 12 * Optionally make use of a STREAMS module for input processing where 13 * available and configured. This STREAMS module reduces the time 14 * stamp latency for serial and PPS events. 15 * Currently the STREAMS module is only available for Suns running 16 * SunOS 4.x and SunOS5.x. 17 * 18 * Copyright (c) 1995-2015 by Frank Kardel <kardel <AT> ntp.org> 19 * Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universitaet Erlangen-Nuernberg, Germany 20 * 21 * Redistribution and use in source and binary forms, with or without 22 * modification, are permitted provided that the following conditions 23 * are met: 24 * 1. Redistributions of source code must retain the above copyright 25 * notice, this list of conditions and the following disclaimer. 26 * 2. Redistributions in binary form must reproduce the above copyright 27 * notice, this list of conditions and the following disclaimer in the 28 * documentation and/or other materials provided with the distribution. 29 * 3. Neither the name of the author nor the names of its contributors 30 * may be used to endorse or promote products derived from this software 31 * without specific prior written permission. 32 * 33 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 34 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 35 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 36 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 37 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 43 * SUCH DAMAGE. 44 * 45 */ 46 47#ifdef HAVE_CONFIG_H 48# include "config.h" 49#endif 50 51#include "ntp_types.h" 52 53#if defined(REFCLOCK) && defined(CLOCK_PARSE) 54 55/* 56 * This driver currently provides the support for 57 * - Meinberg receiver DCF77 PZF535 (TCXO version) (DCF) 58 * - Meinberg receiver DCF77 PZF535 (OCXO version) (DCF) 59 * - Meinberg receiver DCF77 PZF509 (DCF) 60 * - Meinberg receiver DCF77 AM receivers (e.g. C51) (DCF) 61 * - IGEL CLOCK (DCF) 62 * - ELV DCF7000 (DCF) 63 * - Schmid clock (DCF) 64 * - Conrad DCF77 receiver module (DCF) 65 * - FAU DCF77 NTP receiver (TimeBrick) (DCF) 66 * - WHARTON 400A Series clock (DCF) 67 * 68 * - Meinberg GPS receivers (GPS) 69 * - Trimble (TSIP and TAIP protocol) (GPS) 70 * 71 * - RCC8000 MSF Receiver (MSF) 72 * - VARITEXT clock (MSF) 73 */ 74 75/* 76 * Meinberg receivers are usually connected via a 77 * 9600/7E1 or 19200/8N1 serial line. 78 * 79 * The Meinberg GPS receivers also have a special NTP time stamp 80 * format. The firmware release is Uni-Erlangen. 81 * 82 * Meinberg generic receiver setup: 83 * output time code every second 84 * Baud rate 9600 7E2S 85 * 86 * Meinberg GPS receiver setup: 87 * output time code every second 88 * Baudrate 19200 8N1 89 * 90 * This software supports the standard data formats used 91 * in Meinberg receivers. 92 * 93 * Special software versions are only sensible for the 94 * oldest GPS receiver, GPS16x. For newer receiver types 95 * the output string format can be configured at the device, 96 * and the device name is generally GPSxxx instead of GPS16x. 97 * 98 * Meinberg can be reached via: http://www.meinberg.de/ 99 */ 100 101#include "ntpd.h" 102#include "ntp_refclock.h" 103#include "timevalops.h" /* includes <sys/time.h> */ 104#include "ntp_control.h" 105#include "ntp_string.h" 106 107#include <stdio.h> 108#include <ctype.h> 109#ifndef TM_IN_SYS_TIME 110# include <time.h> 111#endif 112 113#ifdef HAVE_UNISTD_H 114# include <unistd.h> 115#endif 116 117#if !defined(STREAM) && !defined(HAVE_SYSV_TTYS) && !defined(HAVE_BSD_TTYS) && !defined(HAVE_TERMIOS) 118# include "Bletch: Define one of {STREAM,HAVE_SYSV_TTYS,HAVE_TERMIOS}" 119#endif 120 121#ifdef STREAM 122# include <sys/stream.h> 123# include <sys/stropts.h> 124#endif 125 126#ifdef HAVE_TERMIOS 127# include <termios.h> 128# define TTY_GETATTR(_FD_, _ARG_) tcgetattr((_FD_), (_ARG_)) 129# define TTY_SETATTR(_FD_, _ARG_) tcsetattr((_FD_), TCSANOW, (_ARG_)) 130# undef HAVE_SYSV_TTYS 131#endif 132 133#ifdef HAVE_SYSV_TTYS 134# define TTY_GETATTR(_FD_, _ARG_) ioctl((_FD_), TCGETA, (_ARG_)) 135# define TTY_SETATTR(_FD_, _ARG_) ioctl((_FD_), TCSETAW, (_ARG_)) 136#endif 137 138#ifdef HAVE_BSD_TTYS 139/* #error CURRENTLY NO BSD TTY SUPPORT */ 140# include "Bletch: BSD TTY not currently supported" 141#endif 142 143#ifdef HAVE_SYS_IOCTL_H 144# include <sys/ioctl.h> 145#endif 146 147#ifdef HAVE_PPSAPI 148# include "ppsapi_timepps.h" 149# include "refclock_atom.h" 150#endif 151 152#ifdef PPS 153# ifdef HAVE_SYS_PPSCLOCK_H 154# include <sys/ppsclock.h> 155# endif 156# ifdef HAVE_TIO_SERIAL_STUFF 157# include <linux/serial.h> 158# endif 159#endif 160 161# define BUFFER_SIZE(_BUF, _PTR) ((int)((_BUF) + sizeof(_BUF) - (_PTR))) 162# define BUFFER_SIZES(_BUF, _PTR, _SZ) ((int)((_BUF) + (_SZ) - (_PTR))) 163 164/* 165 * document type of PPS interfacing - copy of ifdef mechanism in local_input() 166 */ 167#undef PPS_METHOD 168 169#ifdef HAVE_PPSAPI 170#define PPS_METHOD "PPS API" 171#else 172#ifdef TIOCDCDTIMESTAMP 173#define PPS_METHOD "TIOCDCDTIMESTAMP" 174#else /* TIOCDCDTIMESTAMP */ 175#if defined(HAVE_STRUCT_PPSCLOCKEV) && (defined(HAVE_CIOGETEV) || defined(HAVE_TIOCGPPSEV)) 176#ifdef HAVE_CIOGETEV 177#define PPS_METHOD "CIOGETEV" 178#endif 179#ifdef HAVE_TIOCGPPSEV 180#define PPS_METHOD "TIOCGPPSEV" 181#endif 182#endif 183#endif /* TIOCDCDTIMESTAMP */ 184#endif /* HAVE_PPSAPI */ 185 186/* 187 * COND_DEF can be conditionally defined as DEF or 0. If defined as DEF 188 * then some more parse-specific variables are flagged to be printed with 189 * "ntpq -c cv <assid>". This can be lengthy, so by default COND_DEF 190 * should be defined as 0. 191 */ 192#if 0 193# define COND_DEF DEF // enable this for testing 194#else 195# define COND_DEF 0 // enable this by default 196#endif 197 198#include "ntp_io.h" 199#include "ntp_stdlib.h" 200 201#include "parse.h" 202#include "mbg_gps166.h" 203#include "trimble.h" 204#include "binio.h" 205#include "ascii.h" 206#include "ieee754io.h" 207#include "recvbuff.h" 208 209static char rcsid[] = "refclock_parse.c,v 4.81 2009/05/01 10:15:29 kardel RELEASE_20090105_A+POWERUPTRUST"; 210 211/**=========================================================================== 212 ** external interface to ntp mechanism 213 **/ 214 215static int parse_start (int, struct peer *); 216static void parse_shutdown (int, struct peer *); 217static void parse_poll (int, struct peer *); 218static void parse_control (int, const struct refclockstat *, struct refclockstat *, struct peer *); 219 220struct refclock refclock_parse = { 221 parse_start, 222 parse_shutdown, 223 parse_poll, 224 parse_control, 225 noentry, 226 noentry, 227 NOFLAGS 228}; 229 230/* 231 * Definitions 232 */ 233#define MAXUNITS 4 /* maximum number of "PARSE" units permitted */ 234#define PARSEDEVICE "/dev/refclock-%d" /* device to open %d is unit number */ 235#define PARSEPPSDEVICE "/dev/refclockpps-%d" /* optional pps device to open %d is unit number */ 236 237#undef ABS 238#define ABS(_X_) (((_X_) < 0) ? -(_X_) : (_X_)) 239 240#define PARSE_HARDPPS_DISABLE 0 241#define PARSE_HARDPPS_ENABLE 1 242 243/**=========================================================================== 244 ** function vector for dynamically binding io handling mechanism 245 **/ 246 247struct parseunit; /* to keep inquiring minds happy */ 248 249typedef struct bind 250{ 251 const char *bd_description; /* name of type of binding */ 252 int (*bd_init) (struct parseunit *); /* initialize */ 253 void (*bd_end) (struct parseunit *); /* end */ 254 int (*bd_setcs) (struct parseunit *, parsectl_t *); /* set character size */ 255 int (*bd_disable) (struct parseunit *); /* disable */ 256 int (*bd_enable) (struct parseunit *); /* enable */ 257 int (*bd_getfmt) (struct parseunit *, parsectl_t *); /* get format */ 258 int (*bd_setfmt) (struct parseunit *, parsectl_t *); /* setfmt */ 259 int (*bd_timecode) (struct parseunit *, parsectl_t *); /* get time code */ 260 void (*bd_receive) (struct recvbuf *); /* receive operation */ 261 int (*bd_io_input) (struct recvbuf *); /* input operation */ 262} bind_t; 263 264#define PARSE_END(_X_) (*(_X_)->binding->bd_end)(_X_) 265#define PARSE_SETCS(_X_, _CS_) (*(_X_)->binding->bd_setcs)(_X_, _CS_) 266#define PARSE_ENABLE(_X_) (*(_X_)->binding->bd_enable)(_X_) 267#define PARSE_DISABLE(_X_) (*(_X_)->binding->bd_disable)(_X_) 268#define PARSE_GETFMT(_X_, _DCT_) (*(_X_)->binding->bd_getfmt)(_X_, _DCT_) 269#define PARSE_SETFMT(_X_, _DCT_) (*(_X_)->binding->bd_setfmt)(_X_, _DCT_) 270#define PARSE_GETTIMECODE(_X_, _DCT_) (*(_X_)->binding->bd_timecode)(_X_, _DCT_) 271 272/* 273 * special handling flags 274 */ 275#define PARSE_F_PPSONSECOND 0x00000001 /* PPS pulses are on second */ 276#define PARSE_F_POWERUPTRUST 0x00000100 /* POWERUP state ist trusted for */ 277 /* trusttime after SYNC was seen */ 278/**=========================================================================== 279 ** error message regression handling 280 ** 281 ** there are quite a few errors that can occur in rapid succession such as 282 ** noisy input data or no data at all. in order to reduce the amount of 283 ** syslog messages in such case, we are using a backoff algorithm. We limit 284 ** the number of error messages of a certain class to 1 per time unit. if a 285 ** configurable number of messages is displayed that way, we move on to the 286 ** next time unit / count for that class. a count of messages that have been 287 ** suppressed is held and displayed whenever a corresponding message is 288 ** displayed. the time units for a message class will also be displayed. 289 ** whenever an error condition clears we reset the error message state, 290 ** thus we would still generate much output on pathological conditions 291 ** where the system oscillates between OK and NOT OK states. coping 292 ** with that condition is currently considered too complicated. 293 **/ 294 295#define ERR_ALL (unsigned)~0 /* "all" errors */ 296#define ERR_BADDATA (unsigned)0 /* unusable input data/conversion errors */ 297#define ERR_NODATA (unsigned)1 /* no input data */ 298#define ERR_BADIO (unsigned)2 /* read/write/select errors */ 299#define ERR_BADSTATUS (unsigned)3 /* unsync states */ 300#define ERR_BADEVENT (unsigned)4 /* non nominal events */ 301#define ERR_INTERNAL (unsigned)5 /* internal error */ 302#define ERR_CNT (unsigned)(ERR_INTERNAL+1) 303 304#define ERR(_X_) if (list_err(parse, (_X_))) 305 306struct errorregression 307{ 308 u_long err_count; /* number of repititions per class */ 309 u_long err_delay; /* minimum delay between messages */ 310}; 311 312static struct errorregression 313err_baddata[] = /* error messages for bad input data */ 314{ 315 { 1, 0 }, /* output first message immediately */ 316 { 5, 60 }, /* output next five messages in 60 second intervals */ 317 { 3, 3600 }, /* output next 3 messages in hour intervals */ 318 { 0, 12*3600 } /* repeat messages only every 12 hours */ 319}; 320 321static struct errorregression 322err_nodata[] = /* error messages for missing input data */ 323{ 324 { 1, 0 }, /* output first message immediately */ 325 { 5, 60 }, /* output next five messages in 60 second intervals */ 326 { 3, 3600 }, /* output next 3 messages in hour intervals */ 327 { 0, 12*3600 } /* repeat messages only every 12 hours */ 328}; 329 330static struct errorregression 331err_badstatus[] = /* unsynchronized state messages */ 332{ 333 { 1, 0 }, /* output first message immediately */ 334 { 5, 60 }, /* output next five messages in 60 second intervals */ 335 { 3, 3600 }, /* output next 3 messages in hour intervals */ 336 { 0, 12*3600 } /* repeat messages only every 12 hours */ 337}; 338 339static struct errorregression 340err_badio[] = /* io failures (bad reads, selects, ...) */ 341{ 342 { 1, 0 }, /* output first message immediately */ 343 { 5, 60 }, /* output next five messages in 60 second intervals */ 344 { 5, 3600 }, /* output next 3 messages in hour intervals */ 345 { 0, 12*3600 } /* repeat messages only every 12 hours */ 346}; 347 348static struct errorregression 349err_badevent[] = /* non nominal events */ 350{ 351 { 20, 0 }, /* output first message immediately */ 352 { 6, 60 }, /* output next five messages in 60 second intervals */ 353 { 5, 3600 }, /* output next 3 messages in hour intervals */ 354 { 0, 12*3600 } /* repeat messages only every 12 hours */ 355}; 356 357static struct errorregression 358err_internal[] = /* really bad things - basically coding/OS errors */ 359{ 360 { 0, 0 }, /* output all messages immediately */ 361}; 362 363static struct errorregression * 364err_tbl[] = 365{ 366 err_baddata, 367 err_nodata, 368 err_badio, 369 err_badstatus, 370 err_badevent, 371 err_internal 372}; 373 374struct errorinfo 375{ 376 u_long err_started; /* begin time (ntp) of error condition */ 377 u_long err_last; /* last time (ntp) error occurred */ 378 u_long err_cnt; /* number of error repititions */ 379 u_long err_suppressed; /* number of suppressed messages */ 380 struct errorregression *err_stage; /* current error stage */ 381}; 382 383/**=========================================================================== 384 ** refclock instance data 385 **/ 386 387struct parseunit 388{ 389 /* 390 * NTP management 391 */ 392 struct peer *peer; /* backlink to peer structure - refclock inactive if 0 */ 393 struct refclockproc *generic; /* backlink to refclockproc structure */ 394 395 /* 396 * PARSE io 397 */ 398 bind_t *binding; /* io handling binding */ 399 400 /* 401 * parse state 402 */ 403 parse_t parseio; /* io handling structure (user level parsing) */ 404 405 /* 406 * type specific parameters 407 */ 408 struct parse_clockinfo *parse_type; /* link to clock description */ 409 410 /* 411 * clock state handling/reporting 412 */ 413 u_char flags; /* flags (leap_control) */ 414 u_long lastchange; /* time (ntp) when last state change accured */ 415 u_long statetime[CEVNT_MAX+1]; /* accumulated time of clock states */ 416 u_long pollneeddata; /* current_time(!=0) for receive sample expected in PPS mode */ 417 u_short lastformat; /* last format used */ 418 u_long lastsync; /* time (ntp) when clock was last seen fully synchronized */ 419 u_long maxunsync; /* max time in seconds a receiver is trusted after loosing synchronisation */ 420 double ppsphaseadjust; /* phase adjustment of PPS time stamp */ 421 u_long lastmissed; /* time (ntp) when poll didn't get data (powerup heuristic) */ 422 u_long ppsserial; /* magic cookie for ppsclock serials (avoids stale ppsclock data) */ 423 int ppsfd; /* fd to ise for PPS io */ 424#ifdef HAVE_PPSAPI 425 int hardppsstate; /* current hard pps state */ 426 struct refclock_atom atom; /* PPSAPI structure */ 427#endif 428 parsetime_t timedata; /* last (parse module) data */ 429 void *localdata; /* optional local, receiver-specific data */ 430 unsigned long localstate; /* private local state */ 431 struct errorinfo errors[ERR_CNT]; /* error state table for suppressing excessive error messages */ 432 struct ctl_var *kv; /* additional pseudo variables */ 433 u_long laststatistic; /* time when staticstics where output */ 434}; 435 436 437/**=========================================================================== 438 ** Clockinfo section all parameter for specific clock types 439 ** includes NTP parameters, TTY parameters and IO handling parameters 440 **/ 441 442static void poll_dpoll (struct parseunit *); 443static void poll_poll (struct peer *); 444static int poll_init (struct parseunit *); 445 446typedef struct poll_info 447{ 448 u_long rate; /* poll rate - once every "rate" seconds - 0 off */ 449 const char *string; /* string to send for polling */ 450 u_long count; /* number of characters in string */ 451} poll_info_t; 452 453#define NO_CL_FLAGS 0 454#define NO_POLL 0 455#define NO_INIT 0 456#define NO_END 0 457#define NO_EVENT 0 458#define NO_LCLDATA 0 459#define NO_MESSAGE 0 460#define NO_PPSDELAY 0 461 462#define DCF_ID "DCF" /* generic DCF */ 463#define DCF_A_ID "DCFa" /* AM demodulation */ 464#define DCF_P_ID "DCFp" /* psuedo random phase shift */ 465#define GPS_ID "GPS" /* GPS receiver */ 466 467#define NOCLOCK_ROOTDELAY 0.0 468#define NOCLOCK_BASEDELAY 0.0 469#define NOCLOCK_DESCRIPTION 0 470#define NOCLOCK_MAXUNSYNC 0 471#define NOCLOCK_CFLAG 0 472#define NOCLOCK_IFLAG 0 473#define NOCLOCK_OFLAG 0 474#define NOCLOCK_LFLAG 0 475#define NOCLOCK_ID "TILT" 476#define NOCLOCK_POLL NO_POLL 477#define NOCLOCK_INIT NO_INIT 478#define NOCLOCK_END NO_END 479#define NOCLOCK_DATA NO_LCLDATA 480#define NOCLOCK_FORMAT "" 481#define NOCLOCK_TYPE CTL_SST_TS_UNSPEC 482#define NOCLOCK_SAMPLES 0 483#define NOCLOCK_KEEP 0 484 485#define DCF_TYPE CTL_SST_TS_LF 486#define GPS_TYPE CTL_SST_TS_UHF 487 488/* 489 * receiver specific constants 490 */ 491#define MBG_SPEED (B9600) 492#define MBG_CFLAG (CS7|PARENB|CREAD|CLOCAL|HUPCL|CSTOPB) 493#define MBG_IFLAG (IGNBRK|IGNPAR|ISTRIP) 494#define MBG_OFLAG 0 495#define MBG_LFLAG 0 496#define MBG_FLAGS PARSE_F_PPSONSECOND 497 498/* 499 * Meinberg DCF77 receivers 500 */ 501#define DCFUA31_ROOTDELAY 0.0 /* 0 */ 502#define DCFUA31_BASEDELAY 0.010 /* 10.7421875ms: 10 ms (+/- 3 ms) */ 503#define DCFUA31_DESCRIPTION "Meinberg DCF77 C51 or compatible" 504#define DCFUA31_MAXUNSYNC 60*30 /* only trust clock for 1/2 hour */ 505#define DCFUA31_SPEED MBG_SPEED 506#define DCFUA31_CFLAG MBG_CFLAG 507#define DCFUA31_IFLAG MBG_IFLAG 508#define DCFUA31_OFLAG MBG_OFLAG 509#define DCFUA31_LFLAG MBG_LFLAG 510#define DCFUA31_SAMPLES 5 511#define DCFUA31_KEEP 3 512#define DCFUA31_FORMAT "Meinberg Standard" 513 514/* 515 * Meinberg DCF PZF535/TCXO (FM/PZF) receiver 516 */ 517#define DCFPZF535_ROOTDELAY 0.0 518#define DCFPZF535_BASEDELAY 0.001968 /* 1.968ms +- 104us (oscilloscope) - relative to start (end of STX) */ 519#define DCFPZF535_DESCRIPTION "Meinberg DCF PZF 535/509 / TCXO" 520#define DCFPZF535_MAXUNSYNC 60*60*12 /* only trust clock for 12 hours 521 * @ 5e-8df/f we have accumulated 522 * at most 2.16 ms (thus we move to 523 * NTP synchronisation */ 524#define DCFPZF535_SPEED MBG_SPEED 525#define DCFPZF535_CFLAG MBG_CFLAG 526#define DCFPZF535_IFLAG MBG_IFLAG 527#define DCFPZF535_OFLAG MBG_OFLAG 528#define DCFPZF535_LFLAG MBG_LFLAG 529#define DCFPZF535_SAMPLES 5 530#define DCFPZF535_KEEP 3 531#define DCFPZF535_FORMAT "Meinberg Standard" 532 533/* 534 * Meinberg DCF PZF535/OCXO receiver 535 */ 536#define DCFPZF535OCXO_ROOTDELAY 0.0 537#define DCFPZF535OCXO_BASEDELAY 0.001968 /* 1.968ms +- 104us (oscilloscope) - relative to start (end of STX) */ 538#define DCFPZF535OCXO_DESCRIPTION "Meinberg DCF PZF 535/509 / OCXO" 539#define DCFPZF535OCXO_MAXUNSYNC 60*60*96 /* only trust clock for 4 days 540 * @ 5e-9df/f we have accumulated 541 * at most an error of 1.73 ms 542 * (thus we move to NTP synchronisation) */ 543#define DCFPZF535OCXO_SPEED MBG_SPEED 544#define DCFPZF535OCXO_CFLAG MBG_CFLAG 545#define DCFPZF535OCXO_IFLAG MBG_IFLAG 546#define DCFPZF535OCXO_OFLAG MBG_OFLAG 547#define DCFPZF535OCXO_LFLAG MBG_LFLAG 548#define DCFPZF535OCXO_SAMPLES 5 549#define DCFPZF535OCXO_KEEP 3 550#define DCFPZF535OCXO_FORMAT "Meinberg Standard" 551 552/* 553 * Meinberg GPS receivers 554 */ 555static void gps16x_message (struct parseunit *, parsetime_t *); 556static int gps16x_poll_init (struct parseunit *); 557 558#define GPS16X_ROOTDELAY 0.0 /* nothing here */ 559#define GPS16X_BASEDELAY 0.001968 /* XXX to be fixed ! 1.968ms +- 104us (oscilloscope) - relative to start (end of STX) */ 560#define GPS16X_DESCRIPTION "Meinberg GPS receiver" 561#define GPS16X_MAXUNSYNC 60*60*96 /* only trust clock for 4 days 562 * @ 5e-9df/f we have accumulated 563 * at most an error of 1.73 ms 564 * (thus we move to NTP synchronisation) */ 565#define GPS16X_SPEED B19200 566#define GPS16X_CFLAG (CS8|CREAD|CLOCAL|HUPCL) 567#define GPS16X_IFLAG (IGNBRK|IGNPAR) 568#define GPS16X_OFLAG MBG_OFLAG 569#define GPS16X_LFLAG MBG_LFLAG 570#define GPS16X_POLLRATE 6 571#define GPS16X_POLLCMD "" 572#define GPS16X_CMDSIZE 0 573 574static poll_info_t gps16x_pollinfo = { GPS16X_POLLRATE, GPS16X_POLLCMD, GPS16X_CMDSIZE }; 575 576#define GPS16X_INIT gps16x_poll_init 577#define GPS16X_POLL 0 578#define GPS16X_END 0 579#define GPS16X_DATA ((void *)(&gps16x_pollinfo)) 580#define GPS16X_MESSAGE gps16x_message 581#define GPS16X_ID GPS_ID 582#define GPS16X_FORMAT "Meinberg GPS Extended" 583#define GPS16X_SAMPLES 5 584#define GPS16X_KEEP 3 585 586/* 587 * ELV DCF7000 Wallclock-Receiver/Switching Clock (Kit) 588 * 589 * This is really not the hottest clock - but before you have nothing ... 590 */ 591#define DCF7000_ROOTDELAY 0.0 /* 0 */ 592#define DCF7000_BASEDELAY 0.405 /* slow blow */ 593#define DCF7000_DESCRIPTION "ELV DCF7000" 594#define DCF7000_MAXUNSYNC (60*5) /* sorry - but it just was not build as a clock */ 595#define DCF7000_SPEED (B9600) 596#define DCF7000_CFLAG (CS8|CREAD|PARENB|PARODD|CLOCAL|HUPCL) 597#define DCF7000_IFLAG (IGNBRK) 598#define DCF7000_OFLAG 0 599#define DCF7000_LFLAG 0 600#define DCF7000_SAMPLES 5 601#define DCF7000_KEEP 3 602#define DCF7000_FORMAT "ELV DCF7000" 603 604/* 605 * Schmid DCF Receiver Kit 606 * 607 * When the WSDCF clock is operating optimally we want the primary clock 608 * distance to come out at 300 ms. Thus, peer.distance in the WSDCF peer 609 * structure is set to 290 ms and we compute delays which are at least 610 * 10 ms long. The following are 290 ms and 10 ms expressed in u_fp format 611 */ 612#define WS_POLLRATE 1 /* every second - watch interdependency with poll routine */ 613#define WS_POLLCMD "\163" 614#define WS_CMDSIZE 1 615 616static poll_info_t wsdcf_pollinfo = { WS_POLLRATE, WS_POLLCMD, WS_CMDSIZE }; 617 618#define WSDCF_INIT poll_init 619#define WSDCF_POLL poll_dpoll 620#define WSDCF_END 0 621#define WSDCF_DATA ((void *)(&wsdcf_pollinfo)) 622#define WSDCF_ROOTDELAY 0.0 /* 0 */ 623#define WSDCF_BASEDELAY 0.010 /* ~ 10ms */ 624#define WSDCF_DESCRIPTION "WS/DCF Receiver" 625#define WSDCF_FORMAT "Schmid" 626#define WSDCF_MAXUNSYNC (60*60) /* assume this beast hold at 1 h better than 2 ms XXX-must verify */ 627#define WSDCF_SPEED (B1200) 628#define WSDCF_CFLAG (CS8|CREAD|CLOCAL) 629#define WSDCF_IFLAG 0 630#define WSDCF_OFLAG 0 631#define WSDCF_LFLAG 0 632#define WSDCF_SAMPLES 5 633#define WSDCF_KEEP 3 634 635/* 636 * RAW DCF77 - input of DCF marks via RS232 - many variants 637 */ 638#define RAWDCF_FLAGS 0 639#define RAWDCF_ROOTDELAY 0.0 /* 0 */ 640#define RAWDCF_BASEDELAY 0.258 641#define RAWDCF_FORMAT "RAW DCF77 Timecode" 642#define RAWDCF_MAXUNSYNC (0) /* sorry - its a true receiver - no signal - no time */ 643#define RAWDCF_SPEED (B50) 644#ifdef NO_PARENB_IGNPAR /* Was: defined(SYS_IRIX4) || defined(SYS_IRIX5) */ 645/* somehow doesn't grok PARENB & IGNPAR (mj) */ 646# define RAWDCF_CFLAG (CS8|CREAD|CLOCAL) 647#else 648# define RAWDCF_CFLAG (CS8|CREAD|CLOCAL|PARENB) 649#endif 650#ifdef RAWDCF_NO_IGNPAR /* Was: defined(SYS_LINUX) && defined(CLOCK_RAWDCF) */ 651# define RAWDCF_IFLAG 0 652#else 653# define RAWDCF_IFLAG (IGNPAR) 654#endif 655#define RAWDCF_OFLAG 0 656#define RAWDCF_LFLAG 0 657#define RAWDCF_SAMPLES 20 658#define RAWDCF_KEEP 12 659#define RAWDCF_INIT 0 660 661/* 662 * RAW DCF variants 663 */ 664/* 665 * Conrad receiver 666 * 667 * simplest (cheapest) DCF clock - e. g. DCF77 receiver by Conrad 668 * (~40DM - roughly $30 ) followed by a level converter for RS232 669 */ 670#define CONRAD_BASEDELAY 0.292 /* Conrad receiver @ 50 Baud on a Sun */ 671#define CONRAD_DESCRIPTION "RAW DCF77 CODE (Conrad DCF77 receiver module)" 672 673/* Gude Analog- und Digitalsystem GmbH 'Expert mouseCLOCK USB v2.0' */ 674#define GUDE_EMC_USB_V20_SPEED (B4800) 675#define GUDE_EMC_USB_V20_BASEDELAY 0.425 /* USB serial<->USB converter FTDI232R */ 676#define GUDE_EMC_USB_V20_DESCRIPTION "RAW DCF77 CODE (Expert mouseCLOCK USB v2.0)" 677 678/* 679 * TimeBrick receiver 680 */ 681#define TIMEBRICK_BASEDELAY 0.210 /* TimeBrick @ 50 Baud on a Sun */ 682#define TIMEBRICK_DESCRIPTION "RAW DCF77 CODE (TimeBrick)" 683 684/* 685 * IGEL:clock receiver 686 */ 687#define IGELCLOCK_BASEDELAY 0.258 /* IGEL:clock receiver */ 688#define IGELCLOCK_DESCRIPTION "RAW DCF77 CODE (IGEL:clock)" 689#define IGELCLOCK_SPEED (B1200) 690#define IGELCLOCK_CFLAG (CS8|CREAD|HUPCL|CLOCAL) 691 692/* 693 * RAWDCF receivers that need to be powered from DTR 694 * (like Expert mouse clock) 695 */ 696static int rawdcf_init_1 (struct parseunit *); 697#define RAWDCFDTRSET_DESCRIPTION "RAW DCF77 CODE (DTR SET/RTS CLR)" 698#define RAWDCFDTRSET75_DESCRIPTION "RAW DCF77 CODE (DTR SET/RTS CLR @ 75 baud)" 699#define RAWDCFDTRSET_INIT rawdcf_init_1 700 701/* 702 * RAWDCF receivers that need to be powered from 703 * DTR CLR and RTS SET 704 */ 705static int rawdcf_init_2 (struct parseunit *); 706#define RAWDCFDTRCLRRTSSET_DESCRIPTION "RAW DCF77 CODE (DTR CLR/RTS SET)" 707#define RAWDCFDTRCLRRTSSET75_DESCRIPTION "RAW DCF77 CODE (DTR CLR/RTS SET @ 75 baud)" 708#define RAWDCFDTRCLRRTSSET_INIT rawdcf_init_2 709 710/* 711 * Trimble GPS receivers (TAIP and TSIP protocols) 712 */ 713#ifndef TRIM_POLLRATE 714#define TRIM_POLLRATE 0 /* only true direct polling */ 715#endif 716 717#define TRIM_TAIPPOLLCMD ">SRM;FR_FLAG=F;EC_FLAG=F<>QTM<" 718#define TRIM_TAIPCMDSIZE (sizeof(TRIM_TAIPPOLLCMD)-1) 719 720static poll_info_t trimbletaip_pollinfo = { TRIM_POLLRATE, TRIM_TAIPPOLLCMD, TRIM_TAIPCMDSIZE }; 721static int trimbletaip_init (struct parseunit *); 722static void trimbletaip_event (struct parseunit *, int); 723 724/* query time & UTC correction data */ 725static char tsipquery[] = { DLE, 0x21, DLE, ETX, DLE, 0x2F, DLE, ETX }; 726 727static poll_info_t trimbletsip_pollinfo = { TRIM_POLLRATE, tsipquery, sizeof(tsipquery) }; 728static int trimbletsip_init (struct parseunit *); 729static void trimbletsip_end (struct parseunit *); 730static void trimbletsip_message (struct parseunit *, parsetime_t *); 731static void trimbletsip_event (struct parseunit *, int); 732 733#define TRIMBLETSIP_IDLE_TIME (300) /* 5 minutes silence at most */ 734#define TRIMBLE_RESET_HOLDOFF TRIMBLETSIP_IDLE_TIME 735 736#define TRIMBLETAIP_SPEED (B4800) 737#define TRIMBLETAIP_CFLAG (CS8|CREAD|CLOCAL) 738#define TRIMBLETAIP_IFLAG (BRKINT|IGNPAR|ISTRIP|ICRNL|IXON) 739#define TRIMBLETAIP_OFLAG (OPOST|ONLCR) 740#define TRIMBLETAIP_LFLAG (0) 741 742#define TRIMBLETSIP_SPEED (B9600) 743#define TRIMBLETSIP_CFLAG (CS8|CLOCAL|CREAD|PARENB|PARODD) 744#define TRIMBLETSIP_IFLAG (IGNBRK) 745#define TRIMBLETSIP_OFLAG (0) 746#define TRIMBLETSIP_LFLAG (ICANON) 747 748#define TRIMBLETSIP_SAMPLES 5 749#define TRIMBLETSIP_KEEP 3 750#define TRIMBLETAIP_SAMPLES 5 751#define TRIMBLETAIP_KEEP 3 752 753#define TRIMBLETAIP_FLAGS (PARSE_F_PPSONSECOND) 754#define TRIMBLETSIP_FLAGS (TRIMBLETAIP_FLAGS) 755 756#define TRIMBLETAIP_POLL poll_dpoll 757#define TRIMBLETSIP_POLL poll_dpoll 758 759#define TRIMBLETAIP_INIT trimbletaip_init 760#define TRIMBLETSIP_INIT trimbletsip_init 761 762#define TRIMBLETAIP_EVENT trimbletaip_event 763 764#define TRIMBLETSIP_EVENT trimbletsip_event 765#define TRIMBLETSIP_MESSAGE trimbletsip_message 766 767#define TRIMBLETAIP_END 0 768#define TRIMBLETSIP_END trimbletsip_end 769 770#define TRIMBLETAIP_DATA ((void *)(&trimbletaip_pollinfo)) 771#define TRIMBLETSIP_DATA ((void *)(&trimbletsip_pollinfo)) 772 773#define TRIMBLETAIP_ID GPS_ID 774#define TRIMBLETSIP_ID GPS_ID 775 776#define TRIMBLETAIP_FORMAT "Trimble TAIP" 777#define TRIMBLETSIP_FORMAT "Trimble TSIP" 778 779#define TRIMBLETAIP_ROOTDELAY 0x0 780#define TRIMBLETSIP_ROOTDELAY 0x0 781 782#define TRIMBLETAIP_BASEDELAY 0.0 783#define TRIMBLETSIP_BASEDELAY 0.020 /* GPS time message latency */ 784 785#define TRIMBLETAIP_DESCRIPTION "Trimble GPS (TAIP) receiver" 786#define TRIMBLETSIP_DESCRIPTION "Trimble GPS (TSIP) receiver" 787 788#define TRIMBLETAIP_MAXUNSYNC 0 789#define TRIMBLETSIP_MAXUNSYNC 0 790 791#define TRIMBLETAIP_EOL '<' 792 793/* 794 * RadioCode Clocks RCC 800 receiver 795 */ 796#define RCC_POLLRATE 0 /* only true direct polling */ 797#define RCC_POLLCMD "\r" 798#define RCC_CMDSIZE 1 799 800static poll_info_t rcc8000_pollinfo = { RCC_POLLRATE, RCC_POLLCMD, RCC_CMDSIZE }; 801#define RCC8000_FLAGS 0 802#define RCC8000_POLL poll_dpoll 803#define RCC8000_INIT poll_init 804#define RCC8000_END 0 805#define RCC8000_DATA ((void *)(&rcc8000_pollinfo)) 806#define RCC8000_ROOTDELAY 0.0 807#define RCC8000_BASEDELAY 0.0 808#define RCC8000_ID "MSF" 809#define RCC8000_DESCRIPTION "RCC 8000 MSF Receiver" 810#define RCC8000_FORMAT "Radiocode RCC8000" 811#define RCC8000_MAXUNSYNC (60*60) /* should be ok for an hour */ 812#define RCC8000_SPEED (B2400) 813#define RCC8000_CFLAG (CS8|CREAD|CLOCAL) 814#define RCC8000_IFLAG (IGNBRK|IGNPAR) 815#define RCC8000_OFLAG 0 816#define RCC8000_LFLAG 0 817#define RCC8000_SAMPLES 5 818#define RCC8000_KEEP 3 819 820/* 821 * Hopf Radio clock 6021 Format 822 * 823 */ 824#define HOPF6021_ROOTDELAY 0.0 825#define HOPF6021_BASEDELAY 0.0 826#define HOPF6021_DESCRIPTION "HOPF 6021" 827#define HOPF6021_FORMAT "hopf Funkuhr 6021" 828#define HOPF6021_MAXUNSYNC (60*60) /* should be ok for an hour */ 829#define HOPF6021_SPEED (B9600) 830#define HOPF6021_CFLAG (CS8|CREAD|CLOCAL) 831#define HOPF6021_IFLAG (IGNBRK|ISTRIP) 832#define HOPF6021_OFLAG 0 833#define HOPF6021_LFLAG 0 834#define HOPF6021_FLAGS 0 835#define HOPF6021_SAMPLES 5 836#define HOPF6021_KEEP 3 837 838/* 839 * Diem's Computime Radio Clock Receiver 840 */ 841#define COMPUTIME_FLAGS 0 842#define COMPUTIME_ROOTDELAY 0.0 843#define COMPUTIME_BASEDELAY 0.0 844#define COMPUTIME_ID DCF_ID 845#define COMPUTIME_DESCRIPTION "Diem's Computime receiver" 846#define COMPUTIME_FORMAT "Diem's Computime Radio Clock" 847#define COMPUTIME_TYPE DCF_TYPE 848#define COMPUTIME_MAXUNSYNC (60*60) /* only trust clock for 1 hour */ 849#define COMPUTIME_SPEED (B9600) 850#define COMPUTIME_CFLAG (CSTOPB|CS7|CREAD|CLOCAL) 851#define COMPUTIME_IFLAG (IGNBRK|IGNPAR|ISTRIP) 852#define COMPUTIME_OFLAG 0 853#define COMPUTIME_LFLAG 0 854#define COMPUTIME_SAMPLES 5 855#define COMPUTIME_KEEP 3 856 857/* 858 * Varitext Radio Clock Receiver 859 */ 860#define VARITEXT_FLAGS 0 861#define VARITEXT_ROOTDELAY 0.0 862#define VARITEXT_BASEDELAY 0.0 863#define VARITEXT_ID "MSF" 864#define VARITEXT_DESCRIPTION "Varitext receiver" 865#define VARITEXT_FORMAT "Varitext Radio Clock" 866#define VARITEXT_TYPE DCF_TYPE 867#define VARITEXT_MAXUNSYNC (60*60) /* only trust clock for 1 hour */ 868#define VARITEXT_SPEED (B9600) 869#define VARITEXT_CFLAG (CS7|CREAD|CLOCAL|PARENB|PARODD) 870#define VARITEXT_IFLAG (IGNPAR|IGNBRK|INPCK) /*|ISTRIP)*/ 871#define VARITEXT_OFLAG 0 872#define VARITEXT_LFLAG 0 873#define VARITEXT_SAMPLES 32 874#define VARITEXT_KEEP 20 875 876/* 877 * SEL240x Satellite Sychronized Clock 878 */ 879#define SEL240X_POLLRATE 0 /* only true direct polling */ 880#define SEL240X_POLLCMD "BUB8" 881#define SEL240X_CMDSIZE 4 882 883static poll_info_t sel240x_pollinfo = { SEL240X_POLLRATE, 884 SEL240X_POLLCMD, 885 SEL240X_CMDSIZE }; 886#define SEL240X_FLAGS (PARSE_F_PPSONSECOND) 887#define SEL240X_POLL poll_dpoll 888#define SEL240X_INIT poll_init 889#define SEL240X_END 0 890#define SEL240X_DATA ((void *)(&sel240x_pollinfo)) 891#define SEL240X_ROOTDELAY 0.0 892#define SEL240X_BASEDELAY 0.0 893#define SEL240X_ID GPS_ID 894#define SEL240X_DESCRIPTION "SEL240x Satellite Synchronized Clock" 895#define SEL240X_FORMAT "SEL B8" 896#define SEL240X_MAXUNSYNC 60*60*12 /* only trust clock for 12 hours */ 897#define SEL240X_SPEED (B9600) 898#define SEL240X_CFLAG (CS8|CREAD|CLOCAL) 899#define SEL240X_IFLAG (IGNBRK|IGNPAR) 900#define SEL240X_OFLAG (0) 901#define SEL240X_LFLAG (0) 902#define SEL240X_SAMPLES 5 903#define SEL240X_KEEP 3 904 905static struct parse_clockinfo 906{ 907 u_long cl_flags; /* operation flags (PPS interpretation, trust handling) */ 908 void (*cl_poll) (struct parseunit *); /* active poll routine */ 909 int (*cl_init) (struct parseunit *); /* active poll init routine */ 910 void (*cl_event) (struct parseunit *, int); /* special event handling (e.g. reset clock) */ 911 void (*cl_end) (struct parseunit *); /* active poll end routine */ 912 void (*cl_message) (struct parseunit *, parsetime_t *); /* process a lower layer message */ 913 void *cl_data; /* local data area for "poll" mechanism */ 914 double cl_rootdelay; /* rootdelay */ 915 double cl_basedelay; /* current offset by which the RS232 916 time code is delayed from the actual time */ 917 const char *cl_id; /* ID code */ 918 const char *cl_description; /* device name */ 919 const char *cl_format; /* fixed format */ 920 u_char cl_type; /* clock type (ntp control) */ 921 u_long cl_maxunsync; /* time to trust oscillator after losing synch */ 922 u_long cl_speed; /* terminal input & output baudrate */ 923 u_long cl_cflag; /* terminal control flags */ 924 u_long cl_iflag; /* terminal input flags */ 925 u_long cl_oflag; /* terminal output flags */ 926 u_long cl_lflag; /* terminal local flags */ 927 u_long cl_samples; /* samples for median filter */ 928 u_long cl_keep; /* samples for median filter to keep */ 929} parse_clockinfo[] = 930{ 931 { /* mode 0 */ 932 MBG_FLAGS, 933 NO_POLL, 934 NO_INIT, 935 NO_EVENT, 936 NO_END, 937 NO_MESSAGE, 938 NO_LCLDATA, 939 DCFPZF535_ROOTDELAY, 940 DCFPZF535_BASEDELAY, 941 DCF_P_ID, 942 DCFPZF535_DESCRIPTION, 943 DCFPZF535_FORMAT, 944 DCF_TYPE, 945 DCFPZF535_MAXUNSYNC, 946 DCFPZF535_SPEED, 947 DCFPZF535_CFLAG, 948 DCFPZF535_IFLAG, 949 DCFPZF535_OFLAG, 950 DCFPZF535_LFLAG, 951 DCFPZF535_SAMPLES, 952 DCFPZF535_KEEP 953 }, 954 { /* mode 1 */ 955 MBG_FLAGS, 956 NO_POLL, 957 NO_INIT, 958 NO_EVENT, 959 NO_END, 960 NO_MESSAGE, 961 NO_LCLDATA, 962 DCFPZF535OCXO_ROOTDELAY, 963 DCFPZF535OCXO_BASEDELAY, 964 DCF_P_ID, 965 DCFPZF535OCXO_DESCRIPTION, 966 DCFPZF535OCXO_FORMAT, 967 DCF_TYPE, 968 DCFPZF535OCXO_MAXUNSYNC, 969 DCFPZF535OCXO_SPEED, 970 DCFPZF535OCXO_CFLAG, 971 DCFPZF535OCXO_IFLAG, 972 DCFPZF535OCXO_OFLAG, 973 DCFPZF535OCXO_LFLAG, 974 DCFPZF535OCXO_SAMPLES, 975 DCFPZF535OCXO_KEEP 976 }, 977 { /* mode 2 */ 978 MBG_FLAGS, 979 NO_POLL, 980 NO_INIT, 981 NO_EVENT, 982 NO_END, 983 NO_MESSAGE, 984 NO_LCLDATA, 985 DCFUA31_ROOTDELAY, 986 DCFUA31_BASEDELAY, 987 DCF_A_ID, 988 DCFUA31_DESCRIPTION, 989 DCFUA31_FORMAT, 990 DCF_TYPE, 991 DCFUA31_MAXUNSYNC, 992 DCFUA31_SPEED, 993 DCFUA31_CFLAG, 994 DCFUA31_IFLAG, 995 DCFUA31_OFLAG, 996 DCFUA31_LFLAG, 997 DCFUA31_SAMPLES, 998 DCFUA31_KEEP 999 }, 1000 { /* mode 3 */ 1001 MBG_FLAGS, 1002 NO_POLL, 1003 NO_INIT, 1004 NO_EVENT, 1005 NO_END, 1006 NO_MESSAGE, 1007 NO_LCLDATA, 1008 DCF7000_ROOTDELAY, 1009 DCF7000_BASEDELAY, 1010 DCF_A_ID, 1011 DCF7000_DESCRIPTION, 1012 DCF7000_FORMAT, 1013 DCF_TYPE, 1014 DCF7000_MAXUNSYNC, 1015 DCF7000_SPEED, 1016 DCF7000_CFLAG, 1017 DCF7000_IFLAG, 1018 DCF7000_OFLAG, 1019 DCF7000_LFLAG, 1020 DCF7000_SAMPLES, 1021 DCF7000_KEEP 1022 }, 1023 { /* mode 4 */ 1024 NO_CL_FLAGS, 1025 WSDCF_POLL, 1026 WSDCF_INIT, 1027 NO_EVENT, 1028 WSDCF_END, 1029 NO_MESSAGE, 1030 WSDCF_DATA, 1031 WSDCF_ROOTDELAY, 1032 WSDCF_BASEDELAY, 1033 DCF_A_ID, 1034 WSDCF_DESCRIPTION, 1035 WSDCF_FORMAT, 1036 DCF_TYPE, 1037 WSDCF_MAXUNSYNC, 1038 WSDCF_SPEED, 1039 WSDCF_CFLAG, 1040 WSDCF_IFLAG, 1041 WSDCF_OFLAG, 1042 WSDCF_LFLAG, 1043 WSDCF_SAMPLES, 1044 WSDCF_KEEP 1045 }, 1046 { /* mode 5 */ 1047 RAWDCF_FLAGS, 1048 NO_POLL, 1049 RAWDCF_INIT, 1050 NO_EVENT, 1051 NO_END, 1052 NO_MESSAGE, 1053 NO_LCLDATA, 1054 RAWDCF_ROOTDELAY, 1055 CONRAD_BASEDELAY, 1056 DCF_A_ID, 1057 CONRAD_DESCRIPTION, 1058 RAWDCF_FORMAT, 1059 DCF_TYPE, 1060 RAWDCF_MAXUNSYNC, 1061 RAWDCF_SPEED, 1062 RAWDCF_CFLAG, 1063 RAWDCF_IFLAG, 1064 RAWDCF_OFLAG, 1065 RAWDCF_LFLAG, 1066 RAWDCF_SAMPLES, 1067 RAWDCF_KEEP 1068 }, 1069 { /* mode 6 */ 1070 RAWDCF_FLAGS, 1071 NO_POLL, 1072 RAWDCF_INIT, 1073 NO_EVENT, 1074 NO_END, 1075 NO_MESSAGE, 1076 NO_LCLDATA, 1077 RAWDCF_ROOTDELAY, 1078 TIMEBRICK_BASEDELAY, 1079 DCF_A_ID, 1080 TIMEBRICK_DESCRIPTION, 1081 RAWDCF_FORMAT, 1082 DCF_TYPE, 1083 RAWDCF_MAXUNSYNC, 1084 RAWDCF_SPEED, 1085 RAWDCF_CFLAG, 1086 RAWDCF_IFLAG, 1087 RAWDCF_OFLAG, 1088 RAWDCF_LFLAG, 1089 RAWDCF_SAMPLES, 1090 RAWDCF_KEEP 1091 }, 1092 { /* mode 7 */ 1093 MBG_FLAGS, 1094 GPS16X_POLL, 1095 GPS16X_INIT, 1096 NO_EVENT, 1097 GPS16X_END, 1098 GPS16X_MESSAGE, 1099 GPS16X_DATA, 1100 GPS16X_ROOTDELAY, 1101 GPS16X_BASEDELAY, 1102 GPS16X_ID, 1103 GPS16X_DESCRIPTION, 1104 GPS16X_FORMAT, 1105 GPS_TYPE, 1106 GPS16X_MAXUNSYNC, 1107 GPS16X_SPEED, 1108 GPS16X_CFLAG, 1109 GPS16X_IFLAG, 1110 GPS16X_OFLAG, 1111 GPS16X_LFLAG, 1112 GPS16X_SAMPLES, 1113 GPS16X_KEEP 1114 }, 1115 { /* mode 8 */ 1116 RAWDCF_FLAGS, 1117 NO_POLL, 1118 NO_INIT, 1119 NO_EVENT, 1120 NO_END, 1121 NO_MESSAGE, 1122 NO_LCLDATA, 1123 RAWDCF_ROOTDELAY, 1124 IGELCLOCK_BASEDELAY, 1125 DCF_A_ID, 1126 IGELCLOCK_DESCRIPTION, 1127 RAWDCF_FORMAT, 1128 DCF_TYPE, 1129 RAWDCF_MAXUNSYNC, 1130 IGELCLOCK_SPEED, 1131 IGELCLOCK_CFLAG, 1132 RAWDCF_IFLAG, 1133 RAWDCF_OFLAG, 1134 RAWDCF_LFLAG, 1135 RAWDCF_SAMPLES, 1136 RAWDCF_KEEP 1137 }, 1138 { /* mode 9 */ 1139 TRIMBLETAIP_FLAGS, 1140#if TRIM_POLLRATE /* DHD940515: Allow user config */ 1141 NO_POLL, 1142#else 1143 TRIMBLETAIP_POLL, 1144#endif 1145 TRIMBLETAIP_INIT, 1146 TRIMBLETAIP_EVENT, 1147 TRIMBLETAIP_END, 1148 NO_MESSAGE, 1149 TRIMBLETAIP_DATA, 1150 TRIMBLETAIP_ROOTDELAY, 1151 TRIMBLETAIP_BASEDELAY, 1152 TRIMBLETAIP_ID, 1153 TRIMBLETAIP_DESCRIPTION, 1154 TRIMBLETAIP_FORMAT, 1155 GPS_TYPE, 1156 TRIMBLETAIP_MAXUNSYNC, 1157 TRIMBLETAIP_SPEED, 1158 TRIMBLETAIP_CFLAG, 1159 TRIMBLETAIP_IFLAG, 1160 TRIMBLETAIP_OFLAG, 1161 TRIMBLETAIP_LFLAG, 1162 TRIMBLETAIP_SAMPLES, 1163 TRIMBLETAIP_KEEP 1164 }, 1165 { /* mode 10 */ 1166 TRIMBLETSIP_FLAGS, 1167#if TRIM_POLLRATE /* DHD940515: Allow user config */ 1168 NO_POLL, 1169#else 1170 TRIMBLETSIP_POLL, 1171#endif 1172 TRIMBLETSIP_INIT, 1173 TRIMBLETSIP_EVENT, 1174 TRIMBLETSIP_END, 1175 TRIMBLETSIP_MESSAGE, 1176 TRIMBLETSIP_DATA, 1177 TRIMBLETSIP_ROOTDELAY, 1178 TRIMBLETSIP_BASEDELAY, 1179 TRIMBLETSIP_ID, 1180 TRIMBLETSIP_DESCRIPTION, 1181 TRIMBLETSIP_FORMAT, 1182 GPS_TYPE, 1183 TRIMBLETSIP_MAXUNSYNC, 1184 TRIMBLETSIP_SPEED, 1185 TRIMBLETSIP_CFLAG, 1186 TRIMBLETSIP_IFLAG, 1187 TRIMBLETSIP_OFLAG, 1188 TRIMBLETSIP_LFLAG, 1189 TRIMBLETSIP_SAMPLES, 1190 TRIMBLETSIP_KEEP 1191 }, 1192 { /* mode 11 */ 1193 NO_CL_FLAGS, 1194 RCC8000_POLL, 1195 RCC8000_INIT, 1196 NO_EVENT, 1197 RCC8000_END, 1198 NO_MESSAGE, 1199 RCC8000_DATA, 1200 RCC8000_ROOTDELAY, 1201 RCC8000_BASEDELAY, 1202 RCC8000_ID, 1203 RCC8000_DESCRIPTION, 1204 RCC8000_FORMAT, 1205 DCF_TYPE, 1206 RCC8000_MAXUNSYNC, 1207 RCC8000_SPEED, 1208 RCC8000_CFLAG, 1209 RCC8000_IFLAG, 1210 RCC8000_OFLAG, 1211 RCC8000_LFLAG, 1212 RCC8000_SAMPLES, 1213 RCC8000_KEEP 1214 }, 1215 { /* mode 12 */ 1216 HOPF6021_FLAGS, 1217 NO_POLL, 1218 NO_INIT, 1219 NO_EVENT, 1220 NO_END, 1221 NO_MESSAGE, 1222 NO_LCLDATA, 1223 HOPF6021_ROOTDELAY, 1224 HOPF6021_BASEDELAY, 1225 DCF_ID, 1226 HOPF6021_DESCRIPTION, 1227 HOPF6021_FORMAT, 1228 DCF_TYPE, 1229 HOPF6021_MAXUNSYNC, 1230 HOPF6021_SPEED, 1231 HOPF6021_CFLAG, 1232 HOPF6021_IFLAG, 1233 HOPF6021_OFLAG, 1234 HOPF6021_LFLAG, 1235 HOPF6021_SAMPLES, 1236 HOPF6021_KEEP 1237 }, 1238 { /* mode 13 */ 1239 COMPUTIME_FLAGS, 1240 NO_POLL, 1241 NO_INIT, 1242 NO_EVENT, 1243 NO_END, 1244 NO_MESSAGE, 1245 NO_LCLDATA, 1246 COMPUTIME_ROOTDELAY, 1247 COMPUTIME_BASEDELAY, 1248 COMPUTIME_ID, 1249 COMPUTIME_DESCRIPTION, 1250 COMPUTIME_FORMAT, 1251 COMPUTIME_TYPE, 1252 COMPUTIME_MAXUNSYNC, 1253 COMPUTIME_SPEED, 1254 COMPUTIME_CFLAG, 1255 COMPUTIME_IFLAG, 1256 COMPUTIME_OFLAG, 1257 COMPUTIME_LFLAG, 1258 COMPUTIME_SAMPLES, 1259 COMPUTIME_KEEP 1260 }, 1261 { /* mode 14 */ 1262 RAWDCF_FLAGS, 1263 NO_POLL, 1264 RAWDCFDTRSET_INIT, 1265 NO_EVENT, 1266 NO_END, 1267 NO_MESSAGE, 1268 NO_LCLDATA, 1269 RAWDCF_ROOTDELAY, 1270 RAWDCF_BASEDELAY, 1271 DCF_A_ID, 1272 RAWDCFDTRSET_DESCRIPTION, 1273 RAWDCF_FORMAT, 1274 DCF_TYPE, 1275 RAWDCF_MAXUNSYNC, 1276 RAWDCF_SPEED, 1277 RAWDCF_CFLAG, 1278 RAWDCF_IFLAG, 1279 RAWDCF_OFLAG, 1280 RAWDCF_LFLAG, 1281 RAWDCF_SAMPLES, 1282 RAWDCF_KEEP 1283 }, 1284 { /* mode 15 */ 1285 0, /* operation flags (io modes) */ 1286 NO_POLL, /* active poll routine */ 1287 NO_INIT, /* active poll init routine */ 1288 NO_EVENT, /* special event handling (e.g. reset clock) */ 1289 NO_END, /* active poll end routine */ 1290 NO_MESSAGE, /* process a lower layer message */ 1291 NO_LCLDATA, /* local data area for "poll" mechanism */ 1292 0, /* rootdelay */ 1293 11.0 /* bits */ / 9600, /* current offset by which the RS232 1294 time code is delayed from the actual time */ 1295 DCF_ID, /* ID code */ 1296 "WHARTON 400A Series clock", /* device name */ 1297 "WHARTON 400A Series clock Output Format 1", /* fixed format */ 1298 /* Must match a format-name in a libparse/clk_xxx.c file */ 1299 DCF_TYPE, /* clock type (ntp control) */ 1300 (1*60*60), /* time to trust oscillator after losing synch */ 1301 B9600, /* terminal input & output baudrate */ 1302 (CS8|CREAD|PARENB|CLOCAL|HUPCL),/* terminal control flags */ 1303 0, /* terminal input flags */ 1304 0, /* terminal output flags */ 1305 0, /* terminal local flags */ 1306 5, /* samples for median filter */ 1307 3, /* samples for median filter to keep */ 1308 }, 1309 { /* mode 16 - RAWDCF RTS set, DTR clr */ 1310 RAWDCF_FLAGS, 1311 NO_POLL, 1312 RAWDCFDTRCLRRTSSET_INIT, 1313 NO_EVENT, 1314 NO_END, 1315 NO_MESSAGE, 1316 NO_LCLDATA, 1317 RAWDCF_ROOTDELAY, 1318 RAWDCF_BASEDELAY, 1319 DCF_A_ID, 1320 RAWDCFDTRCLRRTSSET_DESCRIPTION, 1321 RAWDCF_FORMAT, 1322 DCF_TYPE, 1323 RAWDCF_MAXUNSYNC, 1324 RAWDCF_SPEED, 1325 RAWDCF_CFLAG, 1326 RAWDCF_IFLAG, 1327 RAWDCF_OFLAG, 1328 RAWDCF_LFLAG, 1329 RAWDCF_SAMPLES, 1330 RAWDCF_KEEP 1331 }, 1332 { /* mode 17 */ 1333 VARITEXT_FLAGS, 1334 NO_POLL, 1335 NO_INIT, 1336 NO_EVENT, 1337 NO_END, 1338 NO_MESSAGE, 1339 NO_LCLDATA, 1340 VARITEXT_ROOTDELAY, 1341 VARITEXT_BASEDELAY, 1342 VARITEXT_ID, 1343 VARITEXT_DESCRIPTION, 1344 VARITEXT_FORMAT, 1345 VARITEXT_TYPE, 1346 VARITEXT_MAXUNSYNC, 1347 VARITEXT_SPEED, 1348 VARITEXT_CFLAG, 1349 VARITEXT_IFLAG, 1350 VARITEXT_OFLAG, 1351 VARITEXT_LFLAG, 1352 VARITEXT_SAMPLES, 1353 VARITEXT_KEEP 1354 }, 1355 { /* mode 18 */ 1356 MBG_FLAGS, 1357 NO_POLL, 1358 NO_INIT, 1359 NO_EVENT, 1360 GPS16X_END, 1361 GPS16X_MESSAGE, 1362 GPS16X_DATA, 1363 GPS16X_ROOTDELAY, 1364 GPS16X_BASEDELAY, 1365 GPS16X_ID, 1366 GPS16X_DESCRIPTION, 1367 GPS16X_FORMAT, 1368 GPS_TYPE, 1369 GPS16X_MAXUNSYNC, 1370 GPS16X_SPEED, 1371 GPS16X_CFLAG, 1372 GPS16X_IFLAG, 1373 GPS16X_OFLAG, 1374 GPS16X_LFLAG, 1375 GPS16X_SAMPLES, 1376 GPS16X_KEEP 1377 }, 1378 { /* mode 19 */ 1379 RAWDCF_FLAGS, 1380 NO_POLL, 1381 RAWDCF_INIT, 1382 NO_EVENT, 1383 NO_END, 1384 NO_MESSAGE, 1385 NO_LCLDATA, 1386 RAWDCF_ROOTDELAY, 1387 GUDE_EMC_USB_V20_BASEDELAY, 1388 DCF_A_ID, 1389 GUDE_EMC_USB_V20_DESCRIPTION, 1390 RAWDCF_FORMAT, 1391 DCF_TYPE, 1392 RAWDCF_MAXUNSYNC, 1393 GUDE_EMC_USB_V20_SPEED, 1394 RAWDCF_CFLAG, 1395 RAWDCF_IFLAG, 1396 RAWDCF_OFLAG, 1397 RAWDCF_LFLAG, 1398 RAWDCF_SAMPLES, 1399 RAWDCF_KEEP 1400 }, 1401 { /* mode 20, like mode 14 but driven by 75 baud */ 1402 RAWDCF_FLAGS, 1403 NO_POLL, 1404 RAWDCFDTRSET_INIT, 1405 NO_EVENT, 1406 NO_END, 1407 NO_MESSAGE, 1408 NO_LCLDATA, 1409 RAWDCF_ROOTDELAY, 1410 RAWDCF_BASEDELAY, 1411 DCF_A_ID, 1412 RAWDCFDTRSET75_DESCRIPTION, 1413 RAWDCF_FORMAT, 1414 DCF_TYPE, 1415 RAWDCF_MAXUNSYNC, 1416 B75, 1417 RAWDCF_CFLAG, 1418 RAWDCF_IFLAG, 1419 RAWDCF_OFLAG, 1420 RAWDCF_LFLAG, 1421 RAWDCF_SAMPLES, 1422 RAWDCF_KEEP 1423 }, 1424 { /* mode 21, like mode 16 but driven by 75 baud 1425 - RAWDCF RTS set, DTR clr */ 1426 RAWDCF_FLAGS, 1427 NO_POLL, 1428 RAWDCFDTRCLRRTSSET_INIT, 1429 NO_EVENT, 1430 NO_END, 1431 NO_MESSAGE, 1432 NO_LCLDATA, 1433 RAWDCF_ROOTDELAY, 1434 RAWDCF_BASEDELAY, 1435 DCF_A_ID, 1436 RAWDCFDTRCLRRTSSET75_DESCRIPTION, 1437 RAWDCF_FORMAT, 1438 DCF_TYPE, 1439 RAWDCF_MAXUNSYNC, 1440 B75, 1441 RAWDCF_CFLAG, 1442 RAWDCF_IFLAG, 1443 RAWDCF_OFLAG, 1444 RAWDCF_LFLAG, 1445 RAWDCF_SAMPLES, 1446 RAWDCF_KEEP 1447 }, 1448 { /* mode 22 - like 2 with POWERUP trust */ 1449 MBG_FLAGS | PARSE_F_POWERUPTRUST, 1450 NO_POLL, 1451 NO_INIT, 1452 NO_EVENT, 1453 NO_END, 1454 NO_MESSAGE, 1455 NO_LCLDATA, 1456 DCFUA31_ROOTDELAY, 1457 DCFUA31_BASEDELAY, 1458 DCF_A_ID, 1459 DCFUA31_DESCRIPTION, 1460 DCFUA31_FORMAT, 1461 DCF_TYPE, 1462 DCFUA31_MAXUNSYNC, 1463 DCFUA31_SPEED, 1464 DCFUA31_CFLAG, 1465 DCFUA31_IFLAG, 1466 DCFUA31_OFLAG, 1467 DCFUA31_LFLAG, 1468 DCFUA31_SAMPLES, 1469 DCFUA31_KEEP 1470 }, 1471 { /* mode 23 - like 7 with POWERUP trust */ 1472 MBG_FLAGS | PARSE_F_POWERUPTRUST, 1473 GPS16X_POLL, 1474 GPS16X_INIT, 1475 NO_EVENT, 1476 GPS16X_END, 1477 GPS16X_MESSAGE, 1478 GPS16X_DATA, 1479 GPS16X_ROOTDELAY, 1480 GPS16X_BASEDELAY, 1481 GPS16X_ID, 1482 GPS16X_DESCRIPTION, 1483 GPS16X_FORMAT, 1484 GPS_TYPE, 1485 GPS16X_MAXUNSYNC, 1486 GPS16X_SPEED, 1487 GPS16X_CFLAG, 1488 GPS16X_IFLAG, 1489 GPS16X_OFLAG, 1490 GPS16X_LFLAG, 1491 GPS16X_SAMPLES, 1492 GPS16X_KEEP 1493 }, 1494 { /* mode 24 */ 1495 SEL240X_FLAGS, 1496 SEL240X_POLL, 1497 SEL240X_INIT, 1498 NO_EVENT, 1499 SEL240X_END, 1500 NO_MESSAGE, 1501 SEL240X_DATA, 1502 SEL240X_ROOTDELAY, 1503 SEL240X_BASEDELAY, 1504 SEL240X_ID, 1505 SEL240X_DESCRIPTION, 1506 SEL240X_FORMAT, 1507 GPS_TYPE, 1508 SEL240X_MAXUNSYNC, 1509 SEL240X_SPEED, 1510 SEL240X_CFLAG, 1511 SEL240X_IFLAG, 1512 SEL240X_OFLAG, 1513 SEL240X_LFLAG, 1514 SEL240X_SAMPLES, 1515 SEL240X_KEEP 1516 }, 1517}; 1518 1519static int ncltypes = sizeof(parse_clockinfo) / sizeof(struct parse_clockinfo); 1520 1521#define CLK_REALTYPE(x) ((int)(((x)->ttl) & 0x7F)) 1522#define CLK_TYPE(x) ((CLK_REALTYPE(x) >= ncltypes) ? ~0 : CLK_REALTYPE(x)) 1523#define CLK_UNIT(x) ((int)REFCLOCKUNIT(&(x)->srcadr)) 1524#define CLK_PPS(x) (((x)->ttl) & 0x80) 1525 1526/* 1527 * Other constant stuff 1528 */ 1529#define PARSEHSREFID 0x7f7f08ff /* 127.127.8.255 refid for hi strata */ 1530 1531#define PARSESTATISTICS (60*60) /* output state statistics every hour */ 1532 1533static int notice = 0; 1534 1535#define PARSE_STATETIME(parse, i) ((parse->generic->currentstatus == i) ? parse->statetime[i] + current_time - parse->lastchange : parse->statetime[i]) 1536 1537static void parse_event (struct parseunit *, int); 1538static void parse_process (struct parseunit *, parsetime_t *); 1539static void clear_err (struct parseunit *, u_long); 1540static int list_err (struct parseunit *, u_long); 1541static char * l_mktime (u_long); 1542 1543/**=========================================================================== 1544 ** implementation error message regression module 1545 **/ 1546static void 1547clear_err( 1548 struct parseunit *parse, 1549 u_long lstate 1550 ) 1551{ 1552 if (lstate == ERR_ALL) 1553 { 1554 size_t i; 1555 1556 for (i = 0; i < ERR_CNT; i++) 1557 { 1558 parse->errors[i].err_stage = err_tbl[i]; 1559 parse->errors[i].err_cnt = 0; 1560 parse->errors[i].err_last = 0; 1561 parse->errors[i].err_started = 0; 1562 parse->errors[i].err_suppressed = 0; 1563 } 1564 } 1565 else 1566 { 1567 parse->errors[lstate].err_stage = err_tbl[lstate]; 1568 parse->errors[lstate].err_cnt = 0; 1569 parse->errors[lstate].err_last = 0; 1570 parse->errors[lstate].err_started = 0; 1571 parse->errors[lstate].err_suppressed = 0; 1572 } 1573} 1574 1575static int 1576list_err( 1577 struct parseunit *parse, 1578 u_long lstate 1579 ) 1580{ 1581 int do_it; 1582 struct errorinfo *err = &parse->errors[lstate]; 1583 1584 if (err->err_started == 0) 1585 { 1586 err->err_started = current_time; 1587 } 1588 1589 do_it = (current_time - err->err_last) >= err->err_stage->err_delay; 1590 1591 if (do_it) 1592 err->err_cnt++; 1593 1594 if (err->err_stage->err_count && 1595 (err->err_cnt >= err->err_stage->err_count)) 1596 { 1597 err->err_stage++; 1598 err->err_cnt = 0; 1599 } 1600 1601 if (!err->err_cnt && do_it) 1602 msyslog(LOG_INFO, "PARSE receiver #%d: interval for following error message class is at least %s", 1603 CLK_UNIT(parse->peer), l_mktime(err->err_stage->err_delay)); 1604 1605 if (!do_it) 1606 err->err_suppressed++; 1607 else 1608 err->err_last = current_time; 1609 1610 if (do_it && err->err_suppressed) 1611 { 1612 msyslog(LOG_INFO, "PARSE receiver #%d: %ld message%s suppressed, error condition class persists for %s", 1613 CLK_UNIT(parse->peer), err->err_suppressed, (err->err_suppressed == 1) ? " was" : "s where", 1614 l_mktime(current_time - err->err_started)); 1615 err->err_suppressed = 0; 1616 } 1617 1618 return do_it; 1619} 1620 1621/*-------------------------------------------------- 1622 * mkreadable - make a printable ascii string (without 1623 * embedded quotes so that the ntpq protocol isn't 1624 * fooled 1625 */ 1626#ifndef isprint 1627#define isprint(_X_) (((_X_) > 0x1F) && ((_X_) < 0x7F)) 1628#endif 1629 1630static char * 1631mkreadable( 1632 char *buffer, 1633 size_t blen, 1634 const char *src, 1635 size_t srclen, 1636 int hex 1637 ) 1638{ 1639 static const char ellipsis[] = "..."; 1640 char *b = buffer; 1641 char *endb = NULL; 1642 1643 if (blen < 4) 1644 return NULL; /* don't bother with mini buffers */ 1645 1646 endb = buffer + blen - sizeof(ellipsis); 1647 1648 blen--; /* account for '\0' */ 1649 1650 while (blen && srclen--) 1651 { 1652 if (!hex && /* no binary only */ 1653 (*src != '\\') && /* no plain \ */ 1654 (*src != '"') && /* no " */ 1655 isprint((unsigned char)*src)) /* only printables */ 1656 { /* they are easy... */ 1657 *buffer++ = *src++; 1658 blen--; 1659 } 1660 else 1661 { 1662 if (blen < 4) 1663 { 1664 while (blen--) 1665 { 1666 *buffer++ = '.'; 1667 } 1668 *buffer = '\0'; 1669 return b; 1670 } 1671 else 1672 { 1673 if (*src == '\\') 1674 { 1675 memcpy(buffer, "\\\\", 2); 1676 buffer += 2; 1677 blen -= 2; 1678 src++; 1679 } 1680 else 1681 { 1682 snprintf(buffer, blen, "\\x%02x", *src++); 1683 blen -= 4; 1684 buffer += 4; 1685 } 1686 } 1687 } 1688 if (srclen && !blen && endb) /* overflow - set last chars to ... */ 1689 memcpy(endb, ellipsis, sizeof(ellipsis)); 1690 } 1691 1692 *buffer = '\0'; 1693 return b; 1694} 1695 1696 1697/*-------------------------------------------------- 1698 * mkascii - make a printable ascii string 1699 * assumes (unless defined better) 7-bit ASCII 1700 */ 1701static char * 1702mkascii( 1703 char *buffer, 1704 long blen, 1705 const char *src, 1706 u_long srclen 1707 ) 1708{ 1709 return mkreadable(buffer, blen, src, srclen, 0); 1710} 1711 1712/**=========================================================================== 1713 ** implementation of i/o handling methods 1714 ** (all STREAM, partial STREAM, user level) 1715 **/ 1716 1717/* 1718 * define possible io handling methods 1719 */ 1720#ifdef STREAM 1721static int ppsclock_init (struct parseunit *); 1722static int stream_init (struct parseunit *); 1723static void stream_end (struct parseunit *); 1724static int stream_enable (struct parseunit *); 1725static int stream_disable (struct parseunit *); 1726static int stream_setcs (struct parseunit *, parsectl_t *); 1727static int stream_getfmt (struct parseunit *, parsectl_t *); 1728static int stream_setfmt (struct parseunit *, parsectl_t *); 1729static int stream_timecode (struct parseunit *, parsectl_t *); 1730static void stream_receive (struct recvbuf *); 1731#endif 1732 1733static int local_init (struct parseunit *); 1734static void local_end (struct parseunit *); 1735static int local_nop (struct parseunit *); 1736static int local_setcs (struct parseunit *, parsectl_t *); 1737static int local_getfmt (struct parseunit *, parsectl_t *); 1738static int local_setfmt (struct parseunit *, parsectl_t *); 1739static int local_timecode (struct parseunit *, parsectl_t *); 1740static void local_receive (struct recvbuf *); 1741static int local_input (struct recvbuf *); 1742 1743static bind_t io_bindings[] = 1744{ 1745#ifdef STREAM 1746 { 1747 "parse STREAM", 1748 stream_init, 1749 stream_end, 1750 stream_setcs, 1751 stream_disable, 1752 stream_enable, 1753 stream_getfmt, 1754 stream_setfmt, 1755 stream_timecode, 1756 stream_receive, 1757 0, 1758 }, 1759 { 1760 "ppsclock STREAM", 1761 ppsclock_init, 1762 local_end, 1763 local_setcs, 1764 local_nop, 1765 local_nop, 1766 local_getfmt, 1767 local_setfmt, 1768 local_timecode, 1769 local_receive, 1770 local_input, 1771 }, 1772#endif 1773 { 1774 "normal", 1775 local_init, 1776 local_end, 1777 local_setcs, 1778 local_nop, 1779 local_nop, 1780 local_getfmt, 1781 local_setfmt, 1782 local_timecode, 1783 local_receive, 1784 local_input, 1785 }, 1786 { 1787 (char *)0, 1788 NULL, 1789 NULL, 1790 NULL, 1791 NULL, 1792 NULL, 1793 NULL, 1794 NULL, 1795 NULL, 1796 NULL, 1797 NULL, 1798 } 1799}; 1800 1801#ifdef STREAM 1802 1803/*-------------------------------------------------- 1804 * ppsclock STREAM init 1805 */ 1806static int 1807ppsclock_init( 1808 struct parseunit *parse 1809 ) 1810{ 1811 static char m1[] = "ppsclocd"; 1812 static char m2[] = "ppsclock"; 1813 1814 /* 1815 * now push the parse streams module 1816 * it will ensure exclusive access to the device 1817 */ 1818 if (ioctl(parse->ppsfd, I_PUSH, (caddr_t)m1) == -1 && 1819 ioctl(parse->ppsfd, I_PUSH, (caddr_t)m2) == -1) 1820 { 1821 if (errno != EINVAL) 1822 { 1823 msyslog(LOG_ERR, "PARSE receiver #%d: ppsclock_init: ioctl(fd, I_PUSH, \"ppsclock\"): %m", 1824 CLK_UNIT(parse->peer)); 1825 } 1826 return 0; 1827 } 1828 if (!local_init(parse)) 1829 { 1830 (void)ioctl(parse->ppsfd, I_POP, (caddr_t)0); 1831 return 0; 1832 } 1833 1834 parse->flags |= PARSE_PPSCLOCK; 1835 return 1; 1836} 1837 1838/*-------------------------------------------------- 1839 * parse STREAM init 1840 */ 1841static int 1842stream_init( 1843 struct parseunit *parse 1844 ) 1845{ 1846 static char m1[] = "parse"; 1847 /* 1848 * now push the parse streams module 1849 * to test whether it is there (neat interface 8-( ) 1850 */ 1851 if (ioctl(parse->generic->io.fd, I_PUSH, (caddr_t)m1) == -1) 1852 { 1853 if (errno != EINVAL) /* accept non-existence */ 1854 { 1855 msyslog(LOG_ERR, "PARSE receiver #%d: stream_init: ioctl(fd, I_PUSH, \"parse\"): %m", CLK_UNIT(parse->peer)); 1856 } 1857 return 0; 1858 } 1859 else 1860 { 1861 while(ioctl(parse->generic->io.fd, I_POP, (caddr_t)0) == 0) 1862 /* empty loop */; 1863 1864 /* 1865 * now push it a second time after we have removed all 1866 * module garbage 1867 */ 1868 if (ioctl(parse->generic->io.fd, I_PUSH, (caddr_t)m1) == -1) 1869 { 1870 msyslog(LOG_ERR, "PARSE receiver #%d: stream_init: ioctl(fd, I_PUSH, \"parse\"): %m", CLK_UNIT(parse->peer)); 1871 return 0; 1872 } 1873 else 1874 { 1875 return 1; 1876 } 1877 } 1878} 1879 1880/*-------------------------------------------------- 1881 * parse STREAM end 1882 */ 1883static void 1884stream_end( 1885 struct parseunit *parse 1886 ) 1887{ 1888 while(ioctl(parse->generic->io.fd, I_POP, (caddr_t)0) == 0) 1889 /* empty loop */; 1890} 1891 1892/*-------------------------------------------------- 1893 * STREAM setcs 1894 */ 1895static int 1896stream_setcs( 1897 struct parseunit *parse, 1898 parsectl_t *tcl 1899 ) 1900{ 1901 struct strioctl strioc; 1902 1903 strioc.ic_cmd = PARSEIOC_SETCS; 1904 strioc.ic_timout = 0; 1905 strioc.ic_dp = (char *)tcl; 1906 strioc.ic_len = sizeof (*tcl); 1907 1908 if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1) 1909 { 1910 msyslog(LOG_ERR, "PARSE receiver #%d: stream_setcs: ioctl(fd, I_STR, PARSEIOC_SETCS): %m", CLK_UNIT(parse->peer)); 1911 return 0; 1912 } 1913 return 1; 1914} 1915 1916/*-------------------------------------------------- 1917 * STREAM enable 1918 */ 1919static int 1920stream_enable( 1921 struct parseunit *parse 1922 ) 1923{ 1924 struct strioctl strioc; 1925 1926 strioc.ic_cmd = PARSEIOC_ENABLE; 1927 strioc.ic_timout = 0; 1928 strioc.ic_dp = (char *)0; 1929 strioc.ic_len = 0; 1930 1931 if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1) 1932 { 1933 msyslog(LOG_ERR, "PARSE receiver #%d: stream_enable: ioctl(fd, I_STR, PARSEIOC_ENABLE): %m", CLK_UNIT(parse->peer)); 1934 return 0; 1935 } 1936 parse->generic->io.clock_recv = stream_receive; /* ok - parse input in kernel */ 1937 return 1; 1938} 1939 1940/*-------------------------------------------------- 1941 * STREAM disable 1942 */ 1943static int 1944stream_disable( 1945 struct parseunit *parse 1946 ) 1947{ 1948 struct strioctl strioc; 1949 1950 strioc.ic_cmd = PARSEIOC_DISABLE; 1951 strioc.ic_timout = 0; 1952 strioc.ic_dp = (char *)0; 1953 strioc.ic_len = 0; 1954 1955 if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1) 1956 { 1957 msyslog(LOG_ERR, "PARSE receiver #%d: stream_disable: ioctl(fd, I_STR, PARSEIOC_DISABLE): %m", CLK_UNIT(parse->peer)); 1958 return 0; 1959 } 1960 parse->generic->io.clock_recv = local_receive; /* ok - parse input in daemon */ 1961 return 1; 1962} 1963 1964/*-------------------------------------------------- 1965 * STREAM getfmt 1966 */ 1967static int 1968stream_getfmt( 1969 struct parseunit *parse, 1970 parsectl_t *tcl 1971 ) 1972{ 1973 struct strioctl strioc; 1974 1975 strioc.ic_cmd = PARSEIOC_GETFMT; 1976 strioc.ic_timout = 0; 1977 strioc.ic_dp = (char *)tcl; 1978 strioc.ic_len = sizeof (*tcl); 1979 if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1) 1980 { 1981 msyslog(LOG_ERR, "PARSE receiver #%d: ioctl(fd, I_STR, PARSEIOC_GETFMT): %m", CLK_UNIT(parse->peer)); 1982 return 0; 1983 } 1984 return 1; 1985} 1986 1987/*-------------------------------------------------- 1988 * STREAM setfmt 1989 */ 1990static int 1991stream_setfmt( 1992 struct parseunit *parse, 1993 parsectl_t *tcl 1994 ) 1995{ 1996 struct strioctl strioc; 1997 1998 strioc.ic_cmd = PARSEIOC_SETFMT; 1999 strioc.ic_timout = 0; 2000 strioc.ic_dp = (char *)tcl; 2001 strioc.ic_len = sizeof (*tcl); 2002 2003 if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1) 2004 { 2005 msyslog(LOG_ERR, "PARSE receiver #%d: stream_setfmt: ioctl(fd, I_STR, PARSEIOC_SETFMT): %m", CLK_UNIT(parse->peer)); 2006 return 0; 2007 } 2008 return 1; 2009} 2010 2011 2012/*-------------------------------------------------- 2013 * STREAM timecode 2014 */ 2015static int 2016stream_timecode( 2017 struct parseunit *parse, 2018 parsectl_t *tcl 2019 ) 2020{ 2021 struct strioctl strioc; 2022 2023 strioc.ic_cmd = PARSEIOC_TIMECODE; 2024 strioc.ic_timout = 0; 2025 strioc.ic_dp = (char *)tcl; 2026 strioc.ic_len = sizeof (*tcl); 2027 2028 if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1) 2029 { 2030 ERR(ERR_INTERNAL) 2031 msyslog(LOG_ERR, "PARSE receiver #%d: stream_timecode: ioctl(fd, I_STR, PARSEIOC_TIMECODE): %m", CLK_UNIT(parse->peer)); 2032 return 0; 2033 } 2034 clear_err(parse, ERR_INTERNAL); 2035 return 1; 2036} 2037 2038/*-------------------------------------------------- 2039 * STREAM receive 2040 */ 2041static void 2042stream_receive( 2043 struct recvbuf *rbufp 2044 ) 2045{ 2046 struct parseunit * parse; 2047 parsetime_t parsetime; 2048 2049 parse = (struct parseunit *)rbufp->recv_peer->procptr->unitptr; 2050 if (!parse->peer) 2051 return; 2052 2053 if (rbufp->recv_length != sizeof(parsetime_t)) 2054 { 2055 ERR(ERR_BADIO) 2056 msyslog(LOG_ERR,"PARSE receiver #%d: stream_receive: bad size (got %d expected %d)", 2057 CLK_UNIT(parse->peer), rbufp->recv_length, (int)sizeof(parsetime_t)); 2058 parse_event(parse, CEVNT_BADREPLY); 2059 return; 2060 } 2061 clear_err(parse, ERR_BADIO); 2062 2063 memmove((caddr_t)&parsetime, 2064 (caddr_t)rbufp->recv_buffer, 2065 sizeof(parsetime_t)); 2066 2067#ifdef DEBUG 2068 if (debug > 3) 2069 { 2070 printf("PARSE receiver #%d: status %06x, state %08x, time %lx.%08lx, stime %lx.%08lx, ptime %lx.%08lx\n", 2071 CLK_UNIT(parse->peer), 2072 (unsigned int)parsetime.parse_status, 2073 (unsigned int)parsetime.parse_state, 2074 (unsigned long)parsetime.parse_time.tv.tv_sec, 2075 (unsigned long)parsetime.parse_time.tv.tv_usec, 2076 (unsigned long)parsetime.parse_stime.tv.tv_sec, 2077 (unsigned long)parsetime.parse_stime.tv.tv_usec, 2078 (unsigned long)parsetime.parse_ptime.tv.tv_sec, 2079 (unsigned long)parsetime.parse_ptime.tv.tv_usec); 2080 } 2081#endif 2082 2083 /* 2084 * switch time stamp world - be sure to normalize small usec field 2085 * errors. 2086 */ 2087 2088 parsetime.parse_stime.fp = tval_stamp_to_lfp(parsetime.parse_stime.tv); 2089 2090 if (PARSE_TIMECODE(parsetime.parse_state)) 2091 { 2092 parsetime.parse_time.fp = tval_stamp_to_lfp(parsetime.parse_time.tv); 2093 } 2094 2095 if (PARSE_PPS(parsetime.parse_state)) 2096 { 2097 parsetime.parse_ptime.fp = tval_stamp_to_lfp(parsetime.parse_ptime.tv); 2098 } 2099 2100 parse_process(parse, &parsetime); 2101} 2102#endif 2103 2104/*-------------------------------------------------- 2105 * local init 2106 */ 2107static int 2108local_init( 2109 struct parseunit *parse 2110 ) 2111{ 2112 return parse_ioinit(&parse->parseio); 2113} 2114 2115/*-------------------------------------------------- 2116 * local end 2117 */ 2118static void 2119local_end( 2120 struct parseunit *parse 2121 ) 2122{ 2123 parse_ioend(&parse->parseio); 2124} 2125 2126 2127/*-------------------------------------------------- 2128 * local nop 2129 */ 2130static int 2131local_nop( 2132 struct parseunit *parse 2133 ) 2134{ 2135 return 1; 2136} 2137 2138/*-------------------------------------------------- 2139 * local setcs 2140 */ 2141static int 2142local_setcs( 2143 struct parseunit *parse, 2144 parsectl_t *tcl 2145 ) 2146{ 2147 return parse_setcs(tcl, &parse->parseio); 2148} 2149 2150/*-------------------------------------------------- 2151 * local getfmt 2152 */ 2153static int 2154local_getfmt( 2155 struct parseunit *parse, 2156 parsectl_t *tcl 2157 ) 2158{ 2159 return parse_getfmt(tcl, &parse->parseio); 2160} 2161 2162/*-------------------------------------------------- 2163 * local setfmt 2164 */ 2165static int 2166local_setfmt( 2167 struct parseunit *parse, 2168 parsectl_t *tcl 2169 ) 2170{ 2171 return parse_setfmt(tcl, &parse->parseio); 2172} 2173 2174/*-------------------------------------------------- 2175 * local timecode 2176 */ 2177static int 2178local_timecode( 2179 struct parseunit *parse, 2180 parsectl_t *tcl 2181 ) 2182{ 2183 return parse_timecode(tcl, &parse->parseio); 2184} 2185 2186 2187/*-------------------------------------------------- 2188 * local input 2189 */ 2190static int 2191local_input( 2192 struct recvbuf *rbufp 2193 ) 2194{ 2195 struct parseunit * parse; 2196 2197 int count; 2198 unsigned char *s; 2199 timestamp_t ts; 2200 2201 parse = (struct parseunit *)rbufp->recv_peer->procptr->unitptr; 2202 if (!parse->peer) 2203 return 0; 2204 2205 /* 2206 * eat all characters, parsing then and feeding complete samples 2207 */ 2208 count = rbufp->recv_length; 2209 s = (unsigned char *)rbufp->recv_buffer; 2210 ts.fp = rbufp->recv_time; 2211 2212 while (count--) 2213 { 2214 if (parse_ioread(&parse->parseio, (unsigned int)(*s++), &ts)) 2215 { 2216 struct recvbuf *buf; 2217 2218 /* 2219 * got something good to eat 2220 */ 2221 if (!PARSE_PPS(parse->parseio.parse_dtime.parse_state)) 2222 { 2223#ifdef HAVE_PPSAPI 2224 if (parse->flags & PARSE_PPSCLOCK) 2225 { 2226 struct timespec pps_timeout; 2227 pps_info_t pps_info; 2228 2229 pps_timeout.tv_sec = 0; 2230 pps_timeout.tv_nsec = 0; 2231 2232 if (time_pps_fetch(parse->atom.handle, PPS_TSFMT_TSPEC, &pps_info, 2233 &pps_timeout) == 0) 2234 { 2235 if (pps_info.assert_sequence + pps_info.clear_sequence != parse->ppsserial) 2236 { 2237 double dtemp; 2238 2239 struct timespec pts; 2240 /* 2241 * add PPS time stamp if available via ppsclock module 2242 * and not supplied already. 2243 */ 2244 if (parse->flags & PARSE_CLEAR) 2245 pts = pps_info.clear_timestamp; 2246 else 2247 pts = pps_info.assert_timestamp; 2248 2249 parse->parseio.parse_dtime.parse_ptime.fp.l_ui = (uint32_t) (pts.tv_sec + JAN_1970); 2250 2251 dtemp = (double) pts.tv_nsec / 1e9; 2252 if (dtemp < 0.) { 2253 dtemp += 1; 2254 parse->parseio.parse_dtime.parse_ptime.fp.l_ui--; 2255 } 2256 if (dtemp > 1.) { 2257 dtemp -= 1; 2258 parse->parseio.parse_dtime.parse_ptime.fp.l_ui++; 2259 } 2260 parse->parseio.parse_dtime.parse_ptime.fp.l_uf = (uint32_t)(dtemp * FRAC); 2261 2262 parse->parseio.parse_dtime.parse_state |= PARSEB_PPS|PARSEB_S_PPS; 2263#ifdef DEBUG 2264 if (debug > 3) 2265 { 2266 printf( 2267 "parse: local_receive: fd %ld PPSAPI seq %ld - PPS %s\n", 2268 (long)rbufp->fd, 2269 (long)pps_info.assert_sequence + (long)pps_info.clear_sequence, 2270 lfptoa(&parse->parseio.parse_dtime.parse_ptime.fp, 6)); 2271 } 2272#endif 2273 } 2274#ifdef DEBUG 2275 else 2276 { 2277 if (debug > 3) 2278 { 2279 printf( 2280 "parse: local_receive: fd %ld PPSAPI seq assert %ld, seq clear %ld - NO PPS event\n", 2281 (long)rbufp->fd, 2282 (long)pps_info.assert_sequence, (long)pps_info.clear_sequence); 2283 } 2284 } 2285#endif 2286 parse->ppsserial = pps_info.assert_sequence + pps_info.clear_sequence; 2287 } 2288#ifdef DEBUG 2289 else 2290 { 2291 if (debug > 3) 2292 { 2293 printf( 2294 "parse: local_receive: fd %ld PPSAPI time_pps_fetch errno = %d\n", 2295 (long)rbufp->fd, 2296 errno); 2297 } 2298 } 2299#endif 2300 } 2301#else 2302#ifdef TIOCDCDTIMESTAMP 2303 struct timeval dcd_time; 2304 2305 if (ioctl(parse->ppsfd, TIOCDCDTIMESTAMP, &dcd_time) != -1) 2306 { 2307 l_fp tstmp; 2308 2309 TVTOTS(&dcd_time, &tstmp); 2310 tstmp.l_ui += JAN_1970; 2311 L_SUB(&ts.fp, &tstmp); 2312 if (ts.fp.l_ui == 0) 2313 { 2314#ifdef DEBUG 2315 if (debug) 2316 { 2317 printf( 2318 "parse: local_receive: fd %d DCDTIMESTAMP %s\n", 2319 parse->ppsfd, 2320 lfptoa(&tstmp, 6)); 2321 printf(" sigio %s\n", 2322 lfptoa(&ts.fp, 6)); 2323 } 2324#endif 2325 parse->parseio.parse_dtime.parse_ptime.fp = tstmp; 2326 parse->parseio.parse_dtime.parse_state |= PARSEB_PPS|PARSEB_S_PPS; 2327 } 2328 } 2329#else /* TIOCDCDTIMESTAMP */ 2330#if defined(HAVE_STRUCT_PPSCLOCKEV) && (defined(HAVE_CIOGETEV) || defined(HAVE_TIOCGPPSEV)) 2331 if (parse->flags & PARSE_PPSCLOCK) 2332 { 2333 l_fp tts; 2334 struct ppsclockev ev; 2335 2336#ifdef HAVE_CIOGETEV 2337 if (ioctl(parse->ppsfd, CIOGETEV, (caddr_t)&ev) == 0) 2338#endif 2339#ifdef HAVE_TIOCGPPSEV 2340 if (ioctl(parse->ppsfd, TIOCGPPSEV, (caddr_t)&ev) == 0) 2341#endif 2342 { 2343 if (ev.serial != parse->ppsserial) 2344 { 2345 /* 2346 * add PPS time stamp if available via ppsclock module 2347 * and not supplied already. 2348 */ 2349 if (!buftvtots((const char *)&ev.tv, &tts)) 2350 { 2351 ERR(ERR_BADDATA) 2352 msyslog(LOG_ERR,"parse: local_receive: timestamp conversion error (buftvtots) (ppsclockev.tv)"); 2353 } 2354 else 2355 { 2356 parse->parseio.parse_dtime.parse_ptime.fp = tts; 2357 parse->parseio.parse_dtime.parse_state |= PARSEB_PPS|PARSEB_S_PPS; 2358 } 2359 } 2360 parse->ppsserial = ev.serial; 2361 } 2362 } 2363#endif 2364#endif /* TIOCDCDTIMESTAMP */ 2365#endif /* !HAVE_PPSAPI */ 2366 } 2367 if (count) 2368 { /* simulate receive */ 2369 buf = get_free_recv_buffer(); 2370 if (buf != NULL) { 2371 memmove((caddr_t)buf->recv_buffer, 2372 (caddr_t)&parse->parseio.parse_dtime, 2373 sizeof(parsetime_t)); 2374 buf->recv_length = sizeof(parsetime_t); 2375 buf->recv_time = rbufp->recv_time; 2376#ifndef HAVE_IO_COMPLETION_PORT 2377 buf->srcadr = rbufp->srcadr; 2378#endif 2379 buf->dstadr = rbufp->dstadr; 2380 buf->receiver = rbufp->receiver; 2381 buf->fd = rbufp->fd; 2382 buf->X_from_where = rbufp->X_from_where; 2383 parse->generic->io.recvcount++; 2384 packets_received++; 2385 add_full_recv_buffer(buf); 2386#ifdef HAVE_IO_COMPLETION_PORT 2387 SetEvent(WaitableIoEventHandle); 2388#endif 2389 } 2390 parse_iodone(&parse->parseio); 2391 } 2392 else 2393 { 2394 memmove((caddr_t)rbufp->recv_buffer, 2395 (caddr_t)&parse->parseio.parse_dtime, 2396 sizeof(parsetime_t)); 2397 parse_iodone(&parse->parseio); 2398 rbufp->recv_length = sizeof(parsetime_t); 2399 return 1; /* got something & in place return */ 2400 } 2401 } 2402 } 2403 return 0; /* nothing to pass up */ 2404} 2405 2406/*-------------------------------------------------- 2407 * local receive 2408 */ 2409static void 2410local_receive( 2411 struct recvbuf *rbufp 2412 ) 2413{ 2414 struct parseunit * parse; 2415 parsetime_t parsetime; 2416 2417 parse = (struct parseunit *)rbufp->recv_peer->procptr->unitptr; 2418 if (!parse->peer) 2419 return; 2420 2421 if (rbufp->recv_length != sizeof(parsetime_t)) 2422 { 2423 ERR(ERR_BADIO) 2424 msyslog(LOG_ERR,"PARSE receiver #%d: local_receive: bad size (got %d expected %d)", 2425 CLK_UNIT(parse->peer), rbufp->recv_length, (int)sizeof(parsetime_t)); 2426 parse_event(parse, CEVNT_BADREPLY); 2427 return; 2428 } 2429 clear_err(parse, ERR_BADIO); 2430 2431 memmove((caddr_t)&parsetime, 2432 (caddr_t)rbufp->recv_buffer, 2433 sizeof(parsetime_t)); 2434 2435#ifdef DEBUG 2436 if (debug > 3) 2437 { 2438 printf("PARSE receiver #%d: status %06x, state %08x, time(fp) %lx.%08lx, stime(fp) %lx.%08lx, ptime(fp) %lx.%08lx\n", 2439 CLK_UNIT(parse->peer), 2440 (unsigned int)parsetime.parse_status, 2441 (unsigned int)parsetime.parse_state, 2442 (unsigned long)parsetime.parse_time.fp.l_ui, 2443 (unsigned long)parsetime.parse_time.fp.l_uf, 2444 (unsigned long)parsetime.parse_stime.fp.l_ui, 2445 (unsigned long)parsetime.parse_stime.fp.l_uf, 2446 (unsigned long)parsetime.parse_ptime.fp.l_ui, 2447 (unsigned long)parsetime.parse_ptime.fp.l_uf); 2448 } 2449#endif 2450 2451 parse_process(parse, &parsetime); 2452} 2453 2454/*-------------------------------------------------- 2455 * init_iobinding - find and initialize lower layers 2456 */ 2457static bind_t * 2458init_iobinding( 2459 struct parseunit *parse 2460 ) 2461{ 2462 bind_t *b = io_bindings; 2463 2464 while (b->bd_description != (char *)0) 2465 { 2466 if ((*b->bd_init)(parse)) 2467 { 2468 return b; 2469 } 2470 b++; 2471 } 2472 return (bind_t *)0; 2473} 2474 2475/**=========================================================================== 2476 ** support routines 2477 **/ 2478 2479static NTP_PRINTF(4, 5) char * 2480ap(char *buffer, size_t len, char *pos, const char *fmt, ...) 2481{ 2482 va_list va; 2483 int l; 2484 size_t rem = len - (pos - buffer); 2485 2486 if (rem == 0) 2487 return pos; 2488 2489 va_start(va, fmt); 2490 l = vsnprintf(pos, rem, fmt, va); 2491 va_end(va); 2492 2493 if (l != -1) { 2494 rem--; 2495 if (rem >= (size_t)l) 2496 pos += l; 2497 else 2498 pos += rem; 2499 } 2500 2501 return pos; 2502} 2503 2504/*-------------------------------------------------- 2505 * convert a flag field to a string 2506 */ 2507static char * 2508parsestate( 2509 u_long lstate, 2510 char *buffer, 2511 int size 2512 ) 2513{ 2514 static struct bits 2515 { 2516 u_long bit; 2517 const char *name; 2518 } flagstrings[] = 2519 { 2520 { PARSEB_ANNOUNCE, "DST SWITCH WARNING" }, 2521 { PARSEB_POWERUP, "NOT SYNCHRONIZED" }, 2522 { PARSEB_NOSYNC, "TIME CODE NOT CONFIRMED" }, 2523 { PARSEB_DST, "DST" }, 2524 { PARSEB_UTC, "UTC DISPLAY" }, 2525 { PARSEB_LEAPADD, "LEAP ADD WARNING" }, 2526 { PARSEB_LEAPDEL, "LEAP DELETE WARNING" }, 2527 { PARSEB_LEAPSECOND, "LEAP SECOND" }, 2528 { PARSEB_CALLBIT, "CALL BIT" }, 2529 { PARSEB_TIMECODE, "TIME CODE" }, 2530 { PARSEB_PPS, "PPS" }, 2531 { PARSEB_POSITION, "POSITION" }, 2532 { 0, NULL } 2533 }; 2534 2535 static struct sbits 2536 { 2537 u_long bit; 2538 const char *name; 2539 } sflagstrings[] = 2540 { 2541 { PARSEB_S_LEAP, "LEAP INDICATION" }, 2542 { PARSEB_S_PPS, "PPS SIGNAL" }, 2543 { PARSEB_S_CALLBIT, "CALLBIT" }, 2544 { PARSEB_S_POSITION, "POSITION" }, 2545 { 0, NULL } 2546 }; 2547 int i; 2548 char *s, *t; 2549 2550 *buffer = '\0'; 2551 s = t = buffer; 2552 2553 i = 0; 2554 while (flagstrings[i].bit) 2555 { 2556 if (flagstrings[i].bit & lstate) 2557 { 2558 if (s != t) 2559 t = ap(buffer, size, t, "; "); 2560 t = ap(buffer, size, t, "%s", flagstrings[i].name); 2561 } 2562 i++; 2563 } 2564 2565 if (lstate & (PARSEB_S_LEAP|PARSEB_S_CALLBIT|PARSEB_S_PPS|PARSEB_S_POSITION)) 2566 { 2567 if (s != t) 2568 t = ap(buffer, size, t, "; "); 2569 2570 t = ap(buffer, size, t, "("); 2571 2572 s = t; 2573 2574 i = 0; 2575 while (sflagstrings[i].bit) 2576 { 2577 if (sflagstrings[i].bit & lstate) 2578 { 2579 if (t != s) 2580 { 2581 t = ap(buffer, size, t, "; "); 2582 } 2583 2584 t = ap(buffer, size, t, "%s", 2585 sflagstrings[i].name); 2586 } 2587 i++; 2588 } 2589 t = ap(buffer, size, t, ")"); 2590 /* t is unused here, but if we don't track it and 2591 * need it later, that's a bug waiting to happen. 2592 */ 2593 } 2594 return buffer; 2595} 2596 2597/*-------------------------------------------------- 2598 * convert a status flag field to a string 2599 */ 2600static char * 2601parsestatus( 2602 u_long lstate, 2603 char *buffer, 2604 int size 2605 ) 2606{ 2607 static struct bits 2608 { 2609 u_long bit; 2610 const char *name; 2611 } flagstrings[] = 2612 { 2613 { CVT_OK, "CONVERSION SUCCESSFUL" }, 2614 { CVT_NONE, "NO CONVERSION" }, 2615 { CVT_FAIL, "CONVERSION FAILED" }, 2616 { CVT_BADFMT, "ILLEGAL FORMAT" }, 2617 { CVT_BADDATE, "DATE ILLEGAL" }, 2618 { CVT_BADTIME, "TIME ILLEGAL" }, 2619 { CVT_ADDITIONAL, "ADDITIONAL DATA" }, 2620 { 0, NULL } 2621 }; 2622 int i; 2623 char *t; 2624 2625 t = buffer; 2626 *buffer = '\0'; 2627 2628 i = 0; 2629 while (flagstrings[i].bit) 2630 { 2631 if (flagstrings[i].bit & lstate) 2632 { 2633 if (t != buffer) 2634 t = ap(buffer, size, t, "; "); 2635 t = ap(buffer, size, t, "%s", flagstrings[i].name); 2636 } 2637 i++; 2638 } 2639 2640 return buffer; 2641} 2642 2643/*-------------------------------------------------- 2644 * convert a clock status flag field to a string 2645 */ 2646static const char * 2647clockstatus( 2648 u_long lstate 2649 ) 2650{ 2651 static char buffer[20]; 2652 static struct status 2653 { 2654 u_long value; 2655 const char *name; 2656 } flagstrings[] = 2657 { 2658 { CEVNT_NOMINAL, "NOMINAL" }, 2659 { CEVNT_TIMEOUT, "NO RESPONSE" }, 2660 { CEVNT_BADREPLY,"BAD FORMAT" }, 2661 { CEVNT_FAULT, "FAULT" }, 2662 { CEVNT_PROP, "PROPAGATION DELAY" }, 2663 { CEVNT_BADDATE, "ILLEGAL DATE" }, 2664 { CEVNT_BADTIME, "ILLEGAL TIME" }, 2665 { (unsigned)~0L, NULL } 2666 }; 2667 int i; 2668 2669 i = 0; 2670 while (flagstrings[i].value != (u_int)~0) 2671 { 2672 if (flagstrings[i].value == lstate) 2673 { 2674 return flagstrings[i].name; 2675 } 2676 i++; 2677 } 2678 2679 snprintf(buffer, sizeof(buffer), "unknown #%ld", (u_long)lstate); 2680 2681 return buffer; 2682} 2683 2684 2685/*-------------------------------------------------- 2686 * l_mktime - make representation of a relative time 2687 */ 2688static char * 2689l_mktime( 2690 u_long delta 2691 ) 2692{ 2693 u_long tmp, m, s; 2694 static char buffer[40]; 2695 char *t; 2696 2697 buffer[0] = '\0'; 2698 t = buffer; 2699 2700 if ((tmp = delta / (60*60*24)) != 0) 2701 { 2702 t = ap(buffer, sizeof(buffer), t, "%ldd+", (u_long)tmp); 2703 delta -= tmp * 60*60*24; 2704 } 2705 2706 s = delta % 60; 2707 delta /= 60; 2708 m = delta % 60; 2709 delta /= 60; 2710 2711 t = ap(buffer, sizeof(buffer), t, "%02d:%02d:%02d", 2712 (int)delta, (int)m, (int)s); 2713 2714 return buffer; 2715} 2716 2717 2718/*-------------------------------------------------- 2719 * parse_statistics - list summary of clock states 2720 */ 2721static void 2722parse_statistics( 2723 struct parseunit *parse 2724 ) 2725{ 2726 int i; 2727 2728 NLOG(NLOG_CLOCKSTATIST) /* conditional if clause for conditional syslog */ 2729 { 2730 msyslog(LOG_INFO, "PARSE receiver #%d: running time: %s", 2731 CLK_UNIT(parse->peer), 2732 l_mktime(current_time - parse->generic->timestarted)); 2733 2734 msyslog(LOG_INFO, "PARSE receiver #%d: current status: %s", 2735 CLK_UNIT(parse->peer), 2736 clockstatus(parse->generic->currentstatus)); 2737 2738 for (i = 0; i <= CEVNT_MAX; i++) 2739 { 2740 u_long s_time; 2741 u_long percent, d = current_time - parse->generic->timestarted; 2742 2743 percent = s_time = PARSE_STATETIME(parse, i); 2744 2745 while (((u_long)(~0) / 10000) < percent) 2746 { 2747 percent /= 10; 2748 d /= 10; 2749 } 2750 2751 if (d) 2752 percent = (percent * 10000) / d; 2753 else 2754 percent = 10000; 2755 2756 if (s_time) 2757 msyslog(LOG_INFO, "PARSE receiver #%d: state %18s: %13s (%3ld.%02ld%%)", 2758 CLK_UNIT(parse->peer), 2759 clockstatus((unsigned int)i), 2760 l_mktime(s_time), 2761 percent / 100, percent % 100); 2762 } 2763 } 2764} 2765 2766/*-------------------------------------------------- 2767 * cparse_statistics - wrapper for statistics call 2768 */ 2769static void 2770cparse_statistics( 2771 struct parseunit *parse 2772 ) 2773{ 2774 if (parse->laststatistic + PARSESTATISTICS < current_time) 2775 parse_statistics(parse); 2776 parse->laststatistic = current_time; 2777} 2778 2779/**=========================================================================== 2780 ** ntp interface routines 2781 **/ 2782 2783/*-------------------------------------------------- 2784 * parse_shutdown - shut down a PARSE clock 2785 */ 2786static void 2787parse_shutdown( 2788 int unit, 2789 struct peer *peer 2790 ) 2791{ 2792 struct parseunit *parse = NULL; 2793 2794 if (peer && peer->procptr) 2795 parse = peer->procptr->unitptr; 2796 2797 if (!parse) 2798 { 2799 /* nothing to clean up */ 2800 return; 2801 } 2802 2803 if (!parse->peer) 2804 { 2805 msyslog(LOG_INFO, "PARSE receiver #%d: INTERNAL ERROR - unit already inactive - shutdown ignored", unit); 2806 return; 2807 } 2808 2809#ifdef HAVE_PPSAPI 2810 if (parse->flags & PARSE_PPSCLOCK) 2811 { 2812 (void)time_pps_destroy(parse->atom.handle); 2813 } 2814#endif 2815 if (parse->generic->io.fd != parse->ppsfd && parse->ppsfd != -1) 2816 (void)closeserial(parse->ppsfd); /* close separate PPS source */ 2817 2818 /* 2819 * print statistics a last time and 2820 * stop statistics machine 2821 */ 2822 parse_statistics(parse); 2823 2824 if (parse->parse_type->cl_end) 2825 { 2826 parse->parse_type->cl_end(parse); 2827 } 2828 2829 /* 2830 * cleanup before leaving this world 2831 */ 2832 if (parse->binding) 2833 PARSE_END(parse); 2834 2835 /* 2836 * Tell the I/O module to turn us off. We're history. 2837 */ 2838 io_closeclock(&parse->generic->io); 2839 2840 free_varlist(parse->kv); 2841 2842 NLOG(NLOG_CLOCKINFO) /* conditional if clause for conditional syslog */ 2843 msyslog(LOG_INFO, "PARSE receiver #%d: reference clock \"%s\" removed", 2844 CLK_UNIT(parse->peer), parse->parse_type->cl_description); 2845 2846 parse->peer = (struct peer *)0; /* unused now */ 2847 peer->procptr->unitptr = (caddr_t)0; 2848 free(parse); 2849} 2850 2851#ifdef HAVE_PPSAPI 2852/*---------------------------------------- 2853 * set up HARDPPS via PPSAPI 2854 */ 2855static void 2856parse_hardpps( 2857 struct parseunit *parse, 2858 int mode 2859 ) 2860{ 2861 if (parse->hardppsstate == mode) 2862 return; 2863 2864 if (CLK_PPS(parse->peer) && (parse->flags & PARSE_PPSKERNEL)) { 2865 int i = 0; 2866 2867 if (mode == PARSE_HARDPPS_ENABLE) 2868 { 2869 if (parse->flags & PARSE_CLEAR) 2870 i = PPS_CAPTURECLEAR; 2871 else 2872 i = PPS_CAPTUREASSERT; 2873 } 2874 2875 if (time_pps_kcbind(parse->atom.handle, PPS_KC_HARDPPS, i, 2876 PPS_TSFMT_TSPEC) < 0) { 2877 msyslog(LOG_ERR, "PARSE receiver #%d: time_pps_kcbind failed: %m", 2878 CLK_UNIT(parse->peer)); 2879 } else { 2880 NLOG(NLOG_CLOCKINFO) 2881 msyslog(LOG_INFO, "PARSE receiver #%d: kernel PPS synchronisation %sabled", 2882 CLK_UNIT(parse->peer), (mode == PARSE_HARDPPS_ENABLE) ? "en" : "dis"); 2883 /* 2884 * tell the rest, that we have a kernel PPS source, iff we ever enable HARDPPS 2885 */ 2886 if (mode == PARSE_HARDPPS_ENABLE) 2887 hardpps_enable = 1; 2888 } 2889 } 2890 2891 parse->hardppsstate = mode; 2892} 2893 2894/*---------------------------------------- 2895 * set up PPS via PPSAPI 2896 */ 2897static int 2898parse_ppsapi( 2899 struct parseunit *parse 2900 ) 2901{ 2902 int cap, mode_ppsoffset; 2903 const char *cp; 2904 2905 parse->flags &= (u_char) (~PARSE_PPSCLOCK); 2906 2907 /* 2908 * collect PPSAPI offset capability - should move into generic handling 2909 */ 2910 if (time_pps_getcap(parse->atom.handle, &cap) < 0) { 2911 msyslog(LOG_ERR, "PARSE receiver #%d: parse_ppsapi: time_pps_getcap failed: %m", 2912 CLK_UNIT(parse->peer)); 2913 2914 return 0; 2915 } 2916 2917 /* 2918 * initialize generic PPSAPI interface 2919 * 2920 * we leave out CLK_FLAG3 as time_pps_kcbind() 2921 * is handled here for now. Ideally this should also 2922 * be part of the generic PPSAPI interface 2923 */ 2924 if (!refclock_params(parse->flags & (CLK_FLAG1|CLK_FLAG2|CLK_FLAG4), &parse->atom)) 2925 return 0; 2926 2927 /* nb. only turn things on, if someone else has turned something 2928 * on before we get here, leave it alone! 2929 */ 2930 2931 if (parse->flags & PARSE_CLEAR) { 2932 cp = "CLEAR"; 2933 mode_ppsoffset = PPS_OFFSETCLEAR; 2934 } else { 2935 cp = "ASSERT"; 2936 mode_ppsoffset = PPS_OFFSETASSERT; 2937 } 2938 2939 msyslog(LOG_INFO, "PARSE receiver #%d: initializing PPS to %s", 2940 CLK_UNIT(parse->peer), cp); 2941 2942 if (!(mode_ppsoffset & cap)) { 2943 msyslog(LOG_WARNING, "PARSE receiver #%d: Cannot set PPS_%sCLEAR, this will increase jitter (PPS API capabilities=0x%x)", 2944 CLK_UNIT(parse->peer), cp, cap); 2945 mode_ppsoffset = 0; 2946 } else { 2947 if (mode_ppsoffset == PPS_OFFSETCLEAR) 2948 { 2949 parse->atom.pps_params.clear_offset.tv_sec = (time_t)(-parse->ppsphaseadjust); 2950 parse->atom.pps_params.clear_offset.tv_nsec = (long)(-1e9*(parse->ppsphaseadjust - (double)(long)parse->ppsphaseadjust)); 2951 } 2952 2953 if (mode_ppsoffset == PPS_OFFSETASSERT) 2954 { 2955 parse->atom.pps_params.assert_offset.tv_sec = (time_t)(-parse->ppsphaseadjust); 2956 parse->atom.pps_params.assert_offset.tv_nsec = (long)(-1e9*(parse->ppsphaseadjust - (double)(long)parse->ppsphaseadjust)); 2957 } 2958 } 2959 2960 parse->atom.pps_params.mode |= mode_ppsoffset; 2961 2962 if (time_pps_setparams(parse->atom.handle, &parse->atom.pps_params) < 0) { 2963 msyslog(LOG_ERR, "PARSE receiver #%d: FAILED set PPS parameters: %m", 2964 CLK_UNIT(parse->peer)); 2965 return 0; 2966 } 2967 2968 parse->flags |= PARSE_PPSCLOCK; 2969 return 1; 2970} 2971#else 2972#define parse_hardpps(_PARSE_, _MODE_) /* empty */ 2973#endif 2974 2975/*-------------------------------------------------- 2976 * parse_start - open the PARSE devices and initialize data for processing 2977 */ 2978static int 2979parse_start( 2980 int sysunit, 2981 struct peer *peer 2982 ) 2983{ 2984 u_int unit; 2985 int fd232; 2986#ifdef HAVE_TERMIOS 2987 struct termios tio; /* NEEDED FOR A LONG TIME ! */ 2988#endif 2989#ifdef HAVE_SYSV_TTYS 2990 struct termio tio; /* NEEDED FOR A LONG TIME ! */ 2991#endif 2992 struct parseunit * parse; 2993 char parsedev[sizeof(PARSEDEVICE)+20]; 2994 char parseppsdev[sizeof(PARSEPPSDEVICE)+20]; 2995 parsectl_t tmp_ctl; 2996 u_int type; 2997 2998 /* 2999 * get out Copyright information once 3000 */ 3001 if (!notice) 3002 { 3003 NLOG(NLOG_CLOCKINFO) /* conditional if clause for conditional syslog */ 3004 msyslog(LOG_INFO, "NTP PARSE support: Copyright (c) 1989-2015, Frank Kardel"); 3005 notice = 1; 3006 } 3007 3008 type = CLK_TYPE(peer); 3009 unit = CLK_UNIT(peer); 3010 3011 if ((type == (u_int)~0) || (parse_clockinfo[type].cl_description == (char *)0)) 3012 { 3013 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: unsupported clock type %d (max %d)", 3014 unit, CLK_REALTYPE(peer), ncltypes-1); 3015 return 0; 3016 } 3017 3018 /* 3019 * Unit okay, attempt to open the device. 3020 */ 3021 (void) snprintf(parsedev, sizeof(parsedev), PARSEDEVICE, unit); 3022 (void) snprintf(parseppsdev, sizeof(parsedev), PARSEPPSDEVICE, unit); 3023 3024#ifndef O_NOCTTY 3025#define O_NOCTTY 0 3026#endif 3027#ifndef O_NONBLOCK 3028#define O_NONBLOCK 0 3029#endif 3030 3031 fd232 = tty_open(parsedev, O_RDWR | O_NOCTTY | O_NONBLOCK, 0777); 3032 3033 if (fd232 == -1) 3034 { 3035 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: open of %s failed: %m", unit, parsedev); 3036 return 0; 3037 } 3038 3039 parse = emalloc_zero(sizeof(*parse)); 3040 3041 parse->generic = peer->procptr; /* link up */ 3042 parse->generic->unitptr = (caddr_t)parse; /* link down */ 3043 3044 /* 3045 * Set up the structures 3046 */ 3047 parse->generic->timestarted = current_time; 3048 parse->lastchange = current_time; 3049 3050 parse->flags = 0; 3051 parse->pollneeddata = 0; 3052 parse->laststatistic = current_time; 3053 parse->lastformat = (unsigned short)~0; /* assume no format known */ 3054 parse->timedata.parse_status = (unsigned short)~0; /* be sure to mark initial status change */ 3055 parse->lastmissed = 0; /* assume got everything */ 3056 parse->ppsserial = 0; 3057 parse->ppsfd = -1; 3058 parse->localdata = (void *)0; 3059 parse->localstate = 0; 3060 parse->kv = (struct ctl_var *)0; 3061 3062 clear_err(parse, ERR_ALL); 3063 3064 parse->parse_type = &parse_clockinfo[type]; 3065 3066 parse->maxunsync = parse->parse_type->cl_maxunsync; 3067 3068 parse->generic->fudgetime1 = parse->parse_type->cl_basedelay; 3069 3070 parse->generic->fudgetime2 = 0.0; 3071 parse->ppsphaseadjust = parse->generic->fudgetime2; 3072 3073 parse->generic->clockdesc = parse->parse_type->cl_description; 3074 3075 peer->rootdelay = parse->parse_type->cl_rootdelay; 3076 peer->sstclktype = parse->parse_type->cl_type; 3077 peer->precision = sys_precision; 3078 3079 peer->stratum = STRATUM_REFCLOCK; 3080 3081 if (peer->stratum <= 1) 3082 memmove((char *)&parse->generic->refid, parse->parse_type->cl_id, 4); 3083 else 3084 parse->generic->refid = htonl(PARSEHSREFID); 3085 3086 parse->generic->io.fd = fd232; 3087 3088 parse->peer = peer; /* marks it also as busy */ 3089 3090 /* 3091 * configure terminal line 3092 */ 3093 if (TTY_GETATTR(fd232, &tio) == -1) 3094 { 3095 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: tcgetattr(%d, &tio): %m", unit, fd232); 3096 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */ 3097 return 0; 3098 } 3099 else 3100 { 3101#ifndef _PC_VDISABLE 3102 memset((char *)tio.c_cc, 0, sizeof(tio.c_cc)); 3103#else 3104 int disablec; 3105 errno = 0; /* pathconf can deliver -1 without changing errno ! */ 3106 3107 disablec = fpathconf(parse->generic->io.fd, _PC_VDISABLE); 3108 if (disablec == -1 && errno) 3109 { 3110 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: fpathconf(fd, _PC_VDISABLE): %m", CLK_UNIT(parse->peer)); 3111 memset((char *)tio.c_cc, 0, sizeof(tio.c_cc)); /* best guess */ 3112 } 3113 else 3114 if (disablec != -1) 3115 memset((char *)tio.c_cc, disablec, sizeof(tio.c_cc)); 3116#endif 3117 3118#if defined (VMIN) || defined(VTIME) 3119 if ((parse_clockinfo[type].cl_lflag & ICANON) == 0) 3120 { 3121#ifdef VMIN 3122 tio.c_cc[VMIN] = 1; 3123#endif 3124#ifdef VTIME 3125 tio.c_cc[VTIME] = 0; 3126#endif 3127 } 3128#endif 3129 3130 tio.c_cflag = (tcflag_t) parse_clockinfo[type].cl_cflag; 3131 tio.c_iflag = (tcflag_t) parse_clockinfo[type].cl_iflag; 3132 tio.c_oflag = (tcflag_t) parse_clockinfo[type].cl_oflag; 3133 tio.c_lflag = (tcflag_t) parse_clockinfo[type].cl_lflag; 3134 3135 3136#ifdef HAVE_TERMIOS 3137 if ((cfsetospeed(&tio, (speed_t) parse_clockinfo[type].cl_speed) == -1) || 3138 (cfsetispeed(&tio, (speed_t) parse_clockinfo[type].cl_speed) == -1)) 3139 { 3140 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: tcset{i,o}speed(&tio, speed): %m", unit); 3141 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */ 3142 return 0; 3143 } 3144#else 3145 tio.c_cflag |= parse_clockinfo[type].cl_speed; 3146#endif 3147 3148 /* 3149 * set up pps device 3150 * if the PARSEPPSDEVICE can be opened that will be used 3151 * for PPS else PARSEDEVICE will be used 3152 */ 3153 parse->ppsfd = tty_open(parseppsdev, O_RDWR | O_NOCTTY | O_NONBLOCK, 0777); 3154 3155 if (parse->ppsfd == -1) 3156 { 3157 parse->ppsfd = fd232; 3158 } 3159 3160/* 3161 * Linux PPS - the old way 3162 */ 3163#if defined(HAVE_TIO_SERIAL_STUFF) /* Linux hack: define PPS interface */ 3164 { 3165 struct serial_struct ss; 3166 if (ioctl(parse->ppsfd, TIOCGSERIAL, &ss) < 0 || 3167 ( 3168#ifdef ASYNC_LOW_LATENCY 3169 ss.flags |= ASYNC_LOW_LATENCY, 3170#endif 3171#ifndef HAVE_PPSAPI 3172#ifdef ASYNC_PPS_CD_NEG 3173 ss.flags |= ASYNC_PPS_CD_NEG, 3174#endif 3175#endif 3176 ioctl(parse->ppsfd, TIOCSSERIAL, &ss)) < 0) { 3177 msyslog(LOG_NOTICE, "refclock_parse: TIOCSSERIAL fd %d, %m", parse->ppsfd); 3178 msyslog(LOG_NOTICE, 3179 "refclock_parse: optional PPS processing not available"); 3180 } else { 3181 parse->flags |= PARSE_PPSCLOCK; 3182#ifdef ASYNC_PPS_CD_NEG 3183 NLOG(NLOG_CLOCKINFO) 3184 msyslog(LOG_INFO, 3185 "refclock_parse: PPS detection on"); 3186#endif 3187 } 3188 } 3189#endif 3190 3191/* 3192 * SUN the Solaris way 3193 */ 3194#ifdef HAVE_TIOCSPPS /* SUN PPS support */ 3195 if (CLK_PPS(parse->peer)) 3196 { 3197 int i = 1; 3198 3199 if (ioctl(parse->ppsfd, TIOCSPPS, (caddr_t)&i) == 0) 3200 { 3201 parse->flags |= PARSE_PPSCLOCK; 3202 } 3203 } 3204#endif 3205 3206/* 3207 * PPS via PPSAPI 3208 */ 3209#if defined(HAVE_PPSAPI) 3210 parse->hardppsstate = PARSE_HARDPPS_DISABLE; 3211 if (CLK_PPS(parse->peer)) 3212 { 3213 if (!refclock_ppsapi(parse->ppsfd, &parse->atom)) 3214 { 3215 msyslog(LOG_NOTICE, "PARSE receiver #%d: parse_start: could not set up PPS: %m", CLK_UNIT(parse->peer)); 3216 } 3217 else 3218 { 3219 parse_ppsapi(parse); 3220 } 3221 } 3222#endif 3223 3224 if (TTY_SETATTR(fd232, &tio) == -1) 3225 { 3226 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: tcsetattr(%d, &tio): %m", unit, fd232); 3227 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */ 3228 return 0; 3229 } 3230 } 3231 3232 /* 3233 * pick correct input machine 3234 */ 3235 parse->generic->io.srcclock = peer; 3236 parse->generic->io.datalen = 0; 3237 3238 parse->binding = init_iobinding(parse); 3239 3240 if (parse->binding == (bind_t *)0) 3241 { 3242 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: io sub system initialisation failed.", CLK_UNIT(parse->peer)); 3243 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */ 3244 return 0; /* well, ok - special initialisation broke */ 3245 } 3246 3247 parse->generic->io.clock_recv = parse->binding->bd_receive; /* pick correct receive routine */ 3248 parse->generic->io.io_input = parse->binding->bd_io_input; /* pick correct input routine */ 3249 3250 /* 3251 * as we always(?) get 8 bit chars we want to be 3252 * sure, that the upper bits are zero for less 3253 * than 8 bit I/O - so we pass that information on. 3254 * note that there can be only one bit count format 3255 * per file descriptor 3256 */ 3257 3258 switch (tio.c_cflag & CSIZE) 3259 { 3260 case CS5: 3261 tmp_ctl.parsesetcs.parse_cs = PARSE_IO_CS5; 3262 break; 3263 3264 case CS6: 3265 tmp_ctl.parsesetcs.parse_cs = PARSE_IO_CS6; 3266 break; 3267 3268 case CS7: 3269 tmp_ctl.parsesetcs.parse_cs = PARSE_IO_CS7; 3270 break; 3271 3272 case CS8: 3273 tmp_ctl.parsesetcs.parse_cs = PARSE_IO_CS8; 3274 break; 3275 } 3276 3277 if (!PARSE_SETCS(parse, &tmp_ctl)) 3278 { 3279 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: parse_setcs() FAILED.", unit); 3280 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */ 3281 return 0; /* well, ok - special initialisation broke */ 3282 } 3283 3284 strlcpy(tmp_ctl.parseformat.parse_buffer, parse->parse_type->cl_format, sizeof(tmp_ctl.parseformat.parse_buffer)); 3285 tmp_ctl.parseformat.parse_count = (u_short) strlen(tmp_ctl.parseformat.parse_buffer); 3286 3287 if (!PARSE_SETFMT(parse, &tmp_ctl)) 3288 { 3289 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: parse_setfmt() FAILED.", unit); 3290 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */ 3291 return 0; /* well, ok - special initialisation broke */ 3292 } 3293 3294 /* 3295 * get rid of all IO accumulated so far 3296 */ 3297#ifdef HAVE_TERMIOS 3298 (void) tcflush(parse->generic->io.fd, TCIOFLUSH); 3299#else 3300#if defined(TCFLSH) && defined(TCIOFLUSH) 3301 { 3302 int flshcmd = TCIOFLUSH; 3303 3304 (void) ioctl(parse->generic->io.fd, TCFLSH, (caddr_t)&flshcmd); 3305 } 3306#endif 3307#endif 3308 3309 /* 3310 * try to do any special initializations 3311 */ 3312 if (parse->parse_type->cl_init) 3313 { 3314 if (parse->parse_type->cl_init(parse)) 3315 { 3316 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */ 3317 return 0; /* well, ok - special initialisation broke */ 3318 } 3319 } 3320 3321 /* 3322 * Insert in async io device list. 3323 */ 3324 if (!io_addclock(&parse->generic->io)) 3325 { 3326 msyslog(LOG_ERR, 3327 "PARSE receiver #%d: parse_start: addclock %s fails (ABORT - clock type requires async io)", CLK_UNIT(parse->peer), parsedev); 3328 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */ 3329 return 0; 3330 } 3331 3332 /* 3333 * print out configuration 3334 */ 3335 NLOG(NLOG_CLOCKINFO) 3336 { 3337 /* conditional if clause for conditional syslog */ 3338 msyslog(LOG_INFO, "PARSE receiver #%d: reference clock \"%s\" (I/O device %s, PPS device %s) added", 3339 CLK_UNIT(parse->peer), 3340 parse->parse_type->cl_description, parsedev, 3341 (parse->ppsfd != parse->generic->io.fd) ? parseppsdev : parsedev); 3342 3343 msyslog(LOG_INFO, "PARSE receiver #%d: Stratum %d, trust time %s, precision %d", 3344 CLK_UNIT(parse->peer), 3345 parse->peer->stratum, 3346 l_mktime(parse->maxunsync), parse->peer->precision); 3347 3348 msyslog(LOG_INFO, "PARSE receiver #%d: rootdelay %.6f s, phase adjustment %.6f s, PPS phase adjustment %.6f s, %s IO handling", 3349 CLK_UNIT(parse->peer), 3350 parse->parse_type->cl_rootdelay, 3351 parse->generic->fudgetime1, 3352 parse->ppsphaseadjust, 3353 parse->binding->bd_description); 3354 3355 msyslog(LOG_INFO, "PARSE receiver #%d: Format recognition: %s", CLK_UNIT(parse->peer), 3356 parse->parse_type->cl_format); 3357 msyslog(LOG_INFO, "PARSE receiver #%d: %sPPS support%s", CLK_UNIT(parse->peer), 3358 CLK_PPS(parse->peer) ? "" : "NO ", 3359 CLK_PPS(parse->peer) ? 3360#ifdef PPS_METHOD 3361 " (implementation " PPS_METHOD ")" 3362#else 3363 "" 3364#endif 3365 : "" 3366 ); 3367 } 3368 3369 return 1; 3370} 3371 3372/*-------------------------------------------------- 3373 * parse_ctl - process changes on flags/time values 3374 */ 3375static void 3376parse_ctl( 3377 struct parseunit *parse, 3378 const struct refclockstat *in 3379 ) 3380{ 3381 if (in) 3382 { 3383 if (in->haveflags & (CLK_HAVEFLAG1|CLK_HAVEFLAG2|CLK_HAVEFLAG3|CLK_HAVEFLAG4)) 3384 { 3385 u_char mask = CLK_FLAG1|CLK_FLAG2|CLK_FLAG3|CLK_FLAG4; 3386 parse->flags = (parse->flags & (u_char)(~mask)) | (in->flags & mask); 3387#if defined(HAVE_PPSAPI) 3388 if (CLK_PPS(parse->peer)) 3389 { 3390 parse_ppsapi(parse); 3391 } 3392#endif 3393 } 3394 3395 if (in->haveflags & CLK_HAVETIME1) 3396 { 3397 parse->generic->fudgetime1 = in->fudgetime1; 3398 msyslog(LOG_INFO, "PARSE receiver #%d: new phase adjustment %.6f s", 3399 CLK_UNIT(parse->peer), 3400 parse->generic->fudgetime1); 3401 } 3402 3403 if (in->haveflags & CLK_HAVETIME2) 3404 { 3405 parse->generic->fudgetime2 = in->fudgetime2; 3406 if (parse->flags & PARSE_TRUSTTIME) 3407 { 3408 parse->maxunsync = (u_long)ABS(in->fudgetime2); 3409 msyslog(LOG_INFO, "PARSE receiver #%d: new trust time %s", 3410 CLK_UNIT(parse->peer), 3411 l_mktime(parse->maxunsync)); 3412 } 3413 else 3414 { 3415 parse->ppsphaseadjust = in->fudgetime2; 3416 msyslog(LOG_INFO, "PARSE receiver #%d: new PPS phase adjustment %.6f s", 3417 CLK_UNIT(parse->peer), 3418 parse->ppsphaseadjust); 3419#if defined(HAVE_PPSAPI) 3420 if (CLK_PPS(parse->peer)) 3421 { 3422 parse_ppsapi(parse); 3423 } 3424#endif 3425 } 3426 } 3427 } 3428} 3429 3430/*-------------------------------------------------- 3431 * parse_poll - called by the transmit procedure 3432 */ 3433static void 3434parse_poll( 3435 int unit, 3436 struct peer *peer 3437 ) 3438{ 3439 struct parseunit *parse = peer->procptr->unitptr; 3440 3441 if (peer != parse->peer) 3442 { 3443 msyslog(LOG_ERR, 3444 "PARSE receiver #%d: poll: INTERNAL: peer incorrect", 3445 unit); 3446 return; 3447 } 3448 3449 /* 3450 * Update clock stat counters 3451 */ 3452 parse->generic->polls++; 3453 3454 if (parse->pollneeddata && 3455 ((int)(current_time - parse->pollneeddata) > (1<<(max(min(parse->peer->hpoll, parse->peer->ppoll), parse->peer->minpoll))))) 3456 { 3457 /* 3458 * start worrying when exceeding a poll inteval 3459 * bad news - didn't get a response last time 3460 */ 3461 parse->lastmissed = current_time; 3462 parse_event(parse, CEVNT_TIMEOUT); 3463 3464 ERR(ERR_NODATA) 3465 msyslog(LOG_WARNING, "PARSE receiver #%d: no data from device within poll interval (check receiver / wiring)", CLK_UNIT(parse->peer)); 3466 } 3467 3468 /* 3469 * we just mark that we want the next sample for the clock filter 3470 */ 3471 parse->pollneeddata = current_time; 3472 3473 if (parse->parse_type->cl_poll) 3474 { 3475 parse->parse_type->cl_poll(parse); 3476 } 3477 3478 cparse_statistics(parse); 3479 3480 return; 3481} 3482 3483#define LEN_STATES 300 /* length of state string */ 3484 3485/*-------------------------------------------------- 3486 * parse_control - set fudge factors, return statistics 3487 */ 3488static void 3489parse_control( 3490 int unit, 3491 const struct refclockstat *in, 3492 struct refclockstat *out, 3493 struct peer *peer 3494 ) 3495{ 3496 struct parseunit *parse = peer->procptr->unitptr; 3497 parsectl_t tmpctl; 3498 3499 static char outstatus[400]; /* status output buffer */ 3500 3501 if (out) 3502 { 3503 out->lencode = 0; 3504 out->p_lastcode = 0; 3505 out->kv_list = (struct ctl_var *)0; 3506 } 3507 3508 if (!parse || !parse->peer) 3509 { 3510 msyslog(LOG_ERR, "PARSE receiver #%d: parse_control: unit invalid (UNIT INACTIVE)", 3511 unit); 3512 return; 3513 } 3514 3515 unit = CLK_UNIT(parse->peer); 3516 3517 /* 3518 * handle changes 3519 */ 3520 parse_ctl(parse, in); 3521 3522 /* 3523 * supply data 3524 */ 3525 if (out) 3526 { 3527 u_long sum = 0; 3528 char *tt, *start; 3529 int i; 3530 3531 outstatus[0] = '\0'; 3532 3533 out->type = REFCLK_PARSE; 3534 3535 /* 3536 * keep fudgetime2 in sync with TRUSTTIME/MAXUNSYNC flag1 3537 */ 3538 parse->generic->fudgetime2 = (parse->flags & PARSE_TRUSTTIME) ? (double)parse->maxunsync : parse->ppsphaseadjust; 3539 3540 /* 3541 * figure out skew between PPS and RS232 - just for informational 3542 * purposes 3543 */ 3544 if (PARSE_SYNC(parse->timedata.parse_state)) 3545 { 3546 if (PARSE_PPS(parse->timedata.parse_state) && PARSE_TIMECODE(parse->timedata.parse_state)) 3547 { 3548 l_fp off; 3549 3550 /* 3551 * we have a PPS and RS232 signal - calculate the skew 3552 * WARNING: assumes on TIMECODE == PULSE (timecode after pulse) 3553 */ 3554 off = parse->timedata.parse_stime.fp; 3555 L_SUB(&off, &parse->timedata.parse_ptime.fp); /* true offset */ 3556 tt = add_var(&out->kv_list, 80, RO); 3557 snprintf(tt, 80, "refclock_ppsskew=%s", lfptoms(&off, 6)); 3558 } 3559 } 3560 3561 if (PARSE_PPS(parse->timedata.parse_state)) 3562 { 3563 tt = add_var(&out->kv_list, 80, RO|DEF); 3564 snprintf(tt, 80, "refclock_ppstime=\"%s\"", gmprettydate(&parse->timedata.parse_ptime.fp)); 3565 } 3566 3567 start = tt = add_var(&out->kv_list, 128, RO|DEF); 3568 tt = ap(start, 128, tt, "refclock_time=\""); 3569 3570 if (parse->timedata.parse_time.fp.l_ui == 0) 3571 { 3572 tt = ap(start, 128, tt, "<UNDEFINED>\""); 3573 } 3574 else 3575 { 3576 tt = ap(start, 128, tt, "%s\"", 3577 gmprettydate(&parse->timedata.parse_time.fp)); 3578 } 3579 3580 if (!PARSE_GETTIMECODE(parse, &tmpctl)) 3581 { 3582 ERR(ERR_INTERNAL) 3583 msyslog(LOG_ERR, "PARSE receiver #%d: parse_control: parse_timecode() FAILED", unit); 3584 } 3585 else 3586 { 3587 start = tt = add_var(&out->kv_list, 512, RO|DEF); 3588 tt = ap(start, 512, tt, "refclock_status=\""); 3589 3590 /* 3591 * copy PPS flags from last read transaction (informational only) 3592 */ 3593 tmpctl.parsegettc.parse_state |= parse->timedata.parse_state & 3594 (PARSEB_PPS|PARSEB_S_PPS); 3595 3596 (void)parsestate(tmpctl.parsegettc.parse_state, tt, BUFFER_SIZES(start, tt, 512)); 3597 3598 tt += strlen(tt); 3599 3600 tt = ap(start, 512, tt, "\""); 3601 3602 if (tmpctl.parsegettc.parse_count) 3603 mkascii(outstatus+strlen(outstatus), (int)(sizeof(outstatus)- strlen(outstatus) - 1), 3604 tmpctl.parsegettc.parse_buffer, (unsigned)(tmpctl.parsegettc.parse_count)); 3605 3606 } 3607 3608 tmpctl.parseformat.parse_format = tmpctl.parsegettc.parse_format; 3609 3610 if (!PARSE_GETFMT(parse, &tmpctl)) 3611 { 3612 ERR(ERR_INTERNAL) 3613 msyslog(LOG_ERR, "PARSE receiver #%d: parse_control: parse_getfmt() FAILED", unit); 3614 } 3615 else 3616 { 3617 int count = tmpctl.parseformat.parse_count; 3618 if (count) 3619 --count; 3620 3621 start = tt = add_var(&out->kv_list, 80, RO|DEF); 3622 tt = ap(start, 80, tt, "refclock_format=\""); 3623 3624 if (count > 0) { 3625 tt = ap(start, 80, tt, "%*.*s", 3626 count, 3627 count, 3628 tmpctl.parseformat.parse_buffer); 3629 } 3630 3631 tt = ap(start, 80, tt, "\""); 3632 } 3633 3634 /* 3635 * gather state statistics 3636 */ 3637 3638 start = tt = add_var(&out->kv_list, LEN_STATES, RO|DEF); 3639 tt = ap(start, LEN_STATES, tt, "refclock_states=\""); 3640 3641 for (i = 0; i <= CEVNT_MAX; i++) 3642 { 3643 u_long s_time; 3644 u_long d = current_time - parse->generic->timestarted; 3645 u_long percent; 3646 3647 percent = s_time = PARSE_STATETIME(parse, i); 3648 3649 while (((u_long)(~0) / 10000) < percent) 3650 { 3651 percent /= 10; 3652 d /= 10; 3653 } 3654 3655 if (d) 3656 percent = (percent * 10000) / d; 3657 else 3658 percent = 10000; 3659 3660 if (s_time) 3661 { 3662 char item[80]; 3663 int count; 3664 3665 snprintf(item, 80, "%s%s%s: %s (%d.%02d%%)", 3666 sum ? "; " : "", 3667 (parse->generic->currentstatus == i) ? "*" : "", 3668 clockstatus((unsigned int)i), 3669 l_mktime(s_time), 3670 (int)(percent / 100), (int)(percent % 100)); 3671 if ((count = (int) strlen(item)) < (LEN_STATES - 40 - (tt - start))) 3672 { 3673 tt = ap(start, LEN_STATES, tt, 3674 "%s", item); 3675 } 3676 sum += s_time; 3677 } 3678 } 3679 3680 ap(start, LEN_STATES, tt, "; running time: %s\"", l_mktime(sum)); 3681 3682 tt = add_var(&out->kv_list, 32, RO); 3683 snprintf(tt, 32, "refclock_id=\"%s\"", parse->parse_type->cl_id); 3684 3685 tt = add_var(&out->kv_list, 80, RO); 3686 snprintf(tt, 80, "refclock_iomode=\"%s\"", parse->binding->bd_description); 3687 3688 tt = add_var(&out->kv_list, 128, RO); 3689 snprintf(tt, 128, "refclock_driver_version=\"%s\"", rcsid); 3690 3691 { 3692 struct ctl_var *k; 3693 3694 k = parse->kv; 3695 while (k && !(k->flags & EOV)) 3696 { 3697 set_var(&out->kv_list, k->text, strlen(k->text)+1, k->flags); 3698 k++; 3699 } 3700 } 3701 3702 out->lencode = (u_short) strlen(outstatus); 3703 out->p_lastcode = outstatus; 3704 } 3705} 3706 3707/**=========================================================================== 3708 ** processing routines 3709 **/ 3710 3711/*-------------------------------------------------- 3712 * event handling - note that nominal events will also be posted 3713 * keep track of state dwelling times 3714 */ 3715static void 3716parse_event( 3717 struct parseunit *parse, 3718 int event 3719 ) 3720{ 3721 if (parse->generic->currentstatus != (u_char) event) 3722 { 3723 parse->statetime[parse->generic->currentstatus] += current_time - parse->lastchange; 3724 parse->lastchange = current_time; 3725 3726 if (parse->parse_type->cl_event) 3727 parse->parse_type->cl_event(parse, event); 3728 3729 if (event == CEVNT_NOMINAL) 3730 { 3731 NLOG(NLOG_CLOCKSTATUS) 3732 msyslog(LOG_INFO, "PARSE receiver #%d: SYNCHRONIZED", 3733 CLK_UNIT(parse->peer)); 3734 } 3735 3736 refclock_report(parse->peer, event); 3737 } 3738} 3739 3740/*-------------------------------------------------- 3741 * process a PARSE time sample 3742 */ 3743static void 3744parse_process( 3745 struct parseunit *parse, 3746 parsetime_t *parsetime 3747 ) 3748{ 3749 l_fp off, rectime, reftime; 3750 double fudge; 3751 3752 /* silence warning: 'off.Ul_i.Xl_i' may be used uninitialized in this function */ 3753 ZERO(off); 3754 3755 /* 3756 * check for changes in conversion status 3757 * (only one for each new status !) 3758 */ 3759 if (((parsetime->parse_status & CVT_MASK) != CVT_OK) && 3760 ((parsetime->parse_status & CVT_MASK) != CVT_NONE) && 3761 (parse->timedata.parse_status != parsetime->parse_status)) 3762 { 3763 char buffer[400]; 3764 3765 NLOG(NLOG_CLOCKINFO) /* conditional if clause for conditional syslog */ 3766 msyslog(LOG_WARNING, "PARSE receiver #%d: conversion status \"%s\"", 3767 CLK_UNIT(parse->peer), parsestatus(parsetime->parse_status, buffer, sizeof(buffer))); 3768 3769 if ((parsetime->parse_status & CVT_MASK) == CVT_FAIL) 3770 { 3771 /* 3772 * tell more about the story - list time code 3773 * there is a slight change for a race condition and 3774 * the time code might be overwritten by the next packet 3775 */ 3776 parsectl_t tmpctl; 3777 3778 if (!PARSE_GETTIMECODE(parse, &tmpctl)) 3779 { 3780 ERR(ERR_INTERNAL) 3781 msyslog(LOG_ERR, "PARSE receiver #%d: parse_process: parse_timecode() FAILED", CLK_UNIT(parse->peer)); 3782 } 3783 else 3784 { 3785 unsigned int count = tmpctl.parsegettc.parse_count; 3786 if (count) 3787 --count; 3788 ERR(ERR_BADDATA) 3789 msyslog(LOG_WARNING, "PARSE receiver #%d: FAILED TIMECODE: \"%s\" (check receiver configuration / wiring)", 3790 CLK_UNIT(parse->peer), 3791 mkascii(buffer, sizeof(buffer), 3792 tmpctl.parsegettc.parse_buffer, count)); 3793 } 3794 /* copy status to show only changes in case of failures */ 3795 parse->timedata.parse_status = parsetime->parse_status; 3796 } 3797 } 3798 3799 /* 3800 * examine status and post appropriate events 3801 */ 3802 if ((parsetime->parse_status & CVT_MASK) != CVT_OK) 3803 { 3804 /* 3805 * got bad data - tell the rest of the system 3806 */ 3807 switch (parsetime->parse_status & CVT_MASK) 3808 { 3809 case CVT_NONE: 3810 if ((parsetime->parse_status & CVT_ADDITIONAL) && 3811 parse->parse_type->cl_message) 3812 parse->parse_type->cl_message(parse, parsetime); 3813 /* 3814 * save PPS information that comes piggyback 3815 */ 3816 if (PARSE_PPS(parsetime->parse_state)) 3817 { 3818 parse->timedata.parse_state |= PARSEB_PPS|PARSEB_S_PPS; 3819 parse->timedata.parse_ptime = parsetime->parse_ptime; 3820 } 3821 break; /* well, still waiting - timeout is handled at higher levels */ 3822 3823 case CVT_FAIL: 3824 if (parsetime->parse_status & CVT_BADFMT) 3825 { 3826 parse_event(parse, CEVNT_BADREPLY); 3827 } 3828 else 3829 if (parsetime->parse_status & CVT_BADDATE) 3830 { 3831 parse_event(parse, CEVNT_BADDATE); 3832 } 3833 else 3834 if (parsetime->parse_status & CVT_BADTIME) 3835 { 3836 parse_event(parse, CEVNT_BADTIME); 3837 } 3838 else 3839 { 3840 parse_event(parse, CEVNT_BADREPLY); /* for the lack of something better */ 3841 } 3842 } 3843 return; /* skip the rest - useless */ 3844 } 3845 3846 /* 3847 * check for format changes 3848 * (in case somebody has swapped clocks 8-) 3849 */ 3850 if (parse->lastformat != parsetime->parse_format) 3851 { 3852 parsectl_t tmpctl; 3853 3854 tmpctl.parseformat.parse_format = parsetime->parse_format; 3855 3856 if (!PARSE_GETFMT(parse, &tmpctl)) 3857 { 3858 ERR(ERR_INTERNAL) 3859 msyslog(LOG_ERR, "PARSE receiver #%d: parse_getfmt() FAILED", CLK_UNIT(parse->peer)); 3860 } 3861 else 3862 { 3863 NLOG(NLOG_CLOCKINFO) /* conditional if clause for conditional syslog */ 3864 msyslog(LOG_INFO, "PARSE receiver #%d: packet format \"%s\"", 3865 CLK_UNIT(parse->peer), tmpctl.parseformat.parse_buffer); 3866 } 3867 parse->lastformat = parsetime->parse_format; 3868 } 3869 3870 /* 3871 * now, any changes ? 3872 */ 3873 if ((parse->timedata.parse_state ^ parsetime->parse_state) & 3874 ~(unsigned)(PARSEB_PPS|PARSEB_S_PPS)) 3875 { 3876 char tmp1[200]; 3877 char tmp2[200]; 3878 /* 3879 * something happend - except for PPS events 3880 */ 3881 3882 (void) parsestate(parsetime->parse_state, tmp1, sizeof(tmp1)); 3883 (void) parsestate(parse->timedata.parse_state, tmp2, sizeof(tmp2)); 3884 3885 NLOG(NLOG_CLOCKINFO) /* conditional if clause for conditional syslog */ 3886 msyslog(LOG_INFO,"PARSE receiver #%d: STATE CHANGE: %s -> %s", 3887 CLK_UNIT(parse->peer), tmp2, tmp1); 3888 } 3889 3890 /* 3891 * carry on PPS information if still usable 3892 */ 3893 if (PARSE_PPS(parse->timedata.parse_state) && !PARSE_PPS(parsetime->parse_state)) 3894 { 3895 parsetime->parse_state |= PARSEB_PPS|PARSEB_S_PPS; 3896 parsetime->parse_ptime = parse->timedata.parse_ptime; 3897 } 3898 3899 /* 3900 * remember for future 3901 */ 3902 parse->timedata = *parsetime; 3903 3904 /* 3905 * check to see, whether the clock did a complete powerup or lost PZF signal 3906 * and post correct events for current condition 3907 */ 3908 if (PARSE_POWERUP(parsetime->parse_state)) 3909 { 3910 /* 3911 * this is bad, as we have completely lost synchronisation 3912 * well this is a problem with the receiver here 3913 * for PARSE Meinberg DCF77 receivers the lost synchronisation 3914 * is true as it is the powerup state and the time is taken 3915 * from a crude real time clock chip 3916 * for the PZF/GPS series this is only partly true, as 3917 * PARSE_POWERUP only means that the pseudo random 3918 * phase shift sequence cannot be found. this is only 3919 * bad, if we have never seen the clock in the SYNC 3920 * state, where the PHASE and EPOCH are correct. 3921 * for reporting events the above business does not 3922 * really matter, but we can use the time code 3923 * even in the POWERUP state after having seen 3924 * the clock in the synchronized state (PZF class 3925 * receivers) unless we have had a telegram disruption 3926 * after having seen the clock in the SYNC state. we 3927 * thus require having seen the clock in SYNC state 3928 * *after* having missed telegrams (noresponse) from 3929 * the clock. one problem remains: we might use erroneously 3930 * POWERUP data if the disruption is shorter than 1 polling 3931 * interval. fortunately powerdowns last usually longer than 64 3932 * seconds and the receiver is at least 2 minutes in the 3933 * POWERUP or NOSYNC state before switching to SYNC 3934 * for GPS receivers this can mean antenna problems and other causes. 3935 * the additional grace period can be enables by a clock 3936 * mode having the PARSE_F_POWERUPTRUST flag in cl_flag set. 3937 */ 3938 parse_event(parse, CEVNT_FAULT); 3939 NLOG(NLOG_CLOCKSTATUS) 3940 ERR(ERR_BADSTATUS) 3941 msyslog(LOG_ERR,"PARSE receiver #%d: NOT SYNCHRONIZED/RECEIVER PROBLEMS", 3942 CLK_UNIT(parse->peer)); 3943 } 3944 else 3945 { 3946 /* 3947 * we have two states left 3948 * 3949 * SYNC: 3950 * this state means that the EPOCH (timecode) and PHASE 3951 * information has be read correctly (at least two 3952 * successive PARSE timecodes were received correctly) 3953 * this is the best possible state - full trust 3954 * 3955 * NOSYNC: 3956 * The clock should be on phase with respect to the second 3957 * signal, but the timecode has not been received correctly within 3958 * at least the last two minutes. this is a sort of half baked state 3959 * for PARSE Meinberg DCF77 clocks this is bad news (clock running 3960 * without timecode confirmation) 3961 * PZF 535 has also no time confirmation, but the phase should be 3962 * very precise as the PZF signal can be decoded 3963 */ 3964 3965 if (PARSE_SYNC(parsetime->parse_state)) 3966 { 3967 /* 3968 * currently completely synchronized - best possible state 3969 */ 3970 parse->lastsync = current_time; 3971 clear_err(parse, ERR_BADSTATUS); 3972 } 3973 else 3974 { 3975 /* 3976 * we have had some problems receiving the time code 3977 */ 3978 parse_event(parse, CEVNT_PROP); 3979 NLOG(NLOG_CLOCKSTATUS) 3980 ERR(ERR_BADSTATUS) 3981 msyslog(LOG_ERR,"PARSE receiver #%d: TIMECODE NOT CONFIRMED", 3982 CLK_UNIT(parse->peer)); 3983 } 3984 } 3985 3986 fudge = parse->generic->fudgetime1; /* standard RS232 Fudgefactor */ 3987 3988 if (PARSE_TIMECODE(parsetime->parse_state)) 3989 { 3990 rectime = parsetime->parse_stime.fp; 3991 off = reftime = parsetime->parse_time.fp; 3992 3993 L_SUB(&off, &rectime); /* prepare for PPS adjustments logic */ 3994 3995#ifdef DEBUG 3996 if (debug > 3) 3997 printf("PARSE receiver #%d: Reftime %s, Recvtime %s - initial offset %s\n", 3998 CLK_UNIT(parse->peer), 3999 prettydate(&reftime), 4000 prettydate(&rectime), 4001 lfptoa(&off,6)); 4002#endif 4003 } 4004 4005 if (PARSE_PPS(parsetime->parse_state) && CLK_PPS(parse->peer)) 4006 { 4007 l_fp offset; 4008 double ppsphaseadjust = parse->ppsphaseadjust; 4009 4010#ifdef HAVE_PPSAPI 4011 /* 4012 * set fudge = 0.0 if already included in PPS time stamps 4013 */ 4014 if (parse->atom.pps_params.mode & (PPS_OFFSETCLEAR|PPS_OFFSETASSERT)) 4015 { 4016 ppsphaseadjust = 0.0; 4017 } 4018#endif 4019 4020 /* 4021 * we have a PPS signal - much better than the RS232 stuff (we hope) 4022 */ 4023 offset = parsetime->parse_ptime.fp; 4024 4025#ifdef DEBUG 4026 if (debug > 3) 4027 printf("PARSE receiver #%d: PPStime %s\n", 4028 CLK_UNIT(parse->peer), 4029 prettydate(&offset)); 4030#endif 4031 if (PARSE_TIMECODE(parsetime->parse_state)) 4032 { 4033 if (M_ISGEQ(off.l_i, off.l_uf, -1, 0x80000000) && 4034 M_ISGEQ(0, 0x7fffffff, off.l_i, off.l_uf)) 4035 { 4036 fudge = ppsphaseadjust; /* pick PPS fudge factor */ 4037 4038 /* 4039 * RS232 offsets within [-0.5..0.5[ - take PPS offsets 4040 */ 4041 4042 if (parse->parse_type->cl_flags & PARSE_F_PPSONSECOND) 4043 { 4044 reftime = off = offset; 4045 if (reftime.l_uf & 0x80000000) 4046 reftime.l_ui++; 4047 reftime.l_uf = 0; 4048 4049 4050 /* 4051 * implied on second offset 4052 */ 4053 off.l_uf = ~off.l_uf; /* map [0.5..1[ -> [-0.5..0[ */ 4054 off.l_i = (off.l_uf & 0x80000000) ? -1 : 0; /* sign extend */ 4055 } 4056 else 4057 { 4058 /* 4059 * time code describes pulse 4060 */ 4061 reftime = off = parsetime->parse_time.fp; 4062 4063 L_SUB(&off, &offset); /* true offset */ 4064 } 4065 } 4066 /* 4067 * take RS232 offset when PPS when out of bounds 4068 */ 4069 } 4070 else 4071 { 4072 fudge = ppsphaseadjust; /* pick PPS fudge factor */ 4073 /* 4074 * Well, no time code to guide us - assume on second pulse 4075 * and pray, that we are within [-0.5..0.5[ 4076 */ 4077 off = offset; 4078 reftime = offset; 4079 if (reftime.l_uf & 0x80000000) 4080 reftime.l_ui++; 4081 reftime.l_uf = 0; 4082 /* 4083 * implied on second offset 4084 */ 4085 off.l_uf = ~off.l_uf; /* map [0.5..1[ -> [-0.5..0[ */ 4086 off.l_i = (off.l_uf & 0x80000000) ? -1 : 0; /* sign extend */ 4087 } 4088 } 4089 else 4090 { 4091 if (!PARSE_TIMECODE(parsetime->parse_state)) 4092 { 4093 /* 4094 * Well, no PPS, no TIMECODE, no more work ... 4095 */ 4096 if ((parsetime->parse_status & CVT_ADDITIONAL) && 4097 parse->parse_type->cl_message) 4098 parse->parse_type->cl_message(parse, parsetime); 4099 return; 4100 } 4101 } 4102 4103#ifdef DEBUG 4104 if (debug > 3) 4105 printf("PARSE receiver #%d: Reftime %s, Recvtime %s - final offset %s\n", 4106 CLK_UNIT(parse->peer), 4107 prettydate(&reftime), 4108 prettydate(&rectime), 4109 lfptoa(&off,6)); 4110#endif 4111 4112 4113 rectime = reftime; 4114 L_SUB(&rectime, &off); /* just to keep the ntp interface happy */ 4115 4116#ifdef DEBUG 4117 if (debug > 3) 4118 printf("PARSE receiver #%d: calculated Reftime %s, Recvtime %s\n", 4119 CLK_UNIT(parse->peer), 4120 prettydate(&reftime), 4121 prettydate(&rectime)); 4122#endif 4123 4124 if ((parsetime->parse_status & CVT_ADDITIONAL) && 4125 parse->parse_type->cl_message) 4126 parse->parse_type->cl_message(parse, parsetime); 4127 4128 if (PARSE_SYNC(parsetime->parse_state)) 4129 { 4130 /* 4131 * log OK status 4132 */ 4133 parse_event(parse, CEVNT_NOMINAL); 4134 } 4135 4136 clear_err(parse, ERR_BADIO); 4137 clear_err(parse, ERR_BADDATA); 4138 clear_err(parse, ERR_NODATA); 4139 clear_err(parse, ERR_INTERNAL); 4140 4141 /* 4142 * and now stick it into the clock machine 4143 * samples are only valid iff lastsync is not too old and 4144 * we have seen the clock in sync at least once 4145 * after the last time we didn't see an expected data telegram 4146 * at startup being not in sync is also bad just like 4147 * POWERUP state unless PARSE_F_POWERUPTRUST is set 4148 * see the clock states section above for more reasoning 4149 */ 4150 if (((current_time - parse->lastsync) > parse->maxunsync) || 4151 (parse->lastsync < parse->lastmissed) || 4152 ((parse->lastsync == 0) && !PARSE_SYNC(parsetime->parse_state)) || 4153 (((parse->parse_type->cl_flags & PARSE_F_POWERUPTRUST) == 0) && 4154 PARSE_POWERUP(parsetime->parse_state))) 4155 { 4156 parse->generic->leap = LEAP_NOTINSYNC; 4157 parse->lastsync = 0; /* wait for full sync again */ 4158 } 4159 else 4160 { 4161 if (PARSE_LEAPADD(parsetime->parse_state)) 4162 { 4163 /* 4164 * we pick this state also for time code that pass leap warnings 4165 * without direction information (as earth is currently slowing 4166 * down). 4167 */ 4168 parse->generic->leap = (parse->flags & PARSE_LEAP_DELETE) ? LEAP_DELSECOND : LEAP_ADDSECOND; 4169 } 4170 else 4171 if (PARSE_LEAPDEL(parsetime->parse_state)) 4172 { 4173 parse->generic->leap = LEAP_DELSECOND; 4174 } 4175 else 4176 { 4177 parse->generic->leap = LEAP_NOWARNING; 4178 } 4179 } 4180 4181 if (parse->generic->leap != LEAP_NOTINSYNC) 4182 { 4183 /* 4184 * only good/trusted samples are interesting 4185 */ 4186#ifdef DEBUG 4187 if (debug > 2) 4188 { 4189 printf("PARSE receiver #%d: refclock_process_offset(reftime=%s, rectime=%s, Fudge=%f)\n", 4190 CLK_UNIT(parse->peer), 4191 prettydate(&reftime), 4192 prettydate(&rectime), 4193 fudge); 4194 } 4195#endif 4196 parse->generic->lastref = reftime; 4197 4198 refclock_process_offset(parse->generic, reftime, rectime, fudge); 4199 4200#ifdef HAVE_PPSAPI 4201 /* 4202 * pass PPS information on to PPS clock 4203 */ 4204 if (PARSE_PPS(parsetime->parse_state) && CLK_PPS(parse->peer)) 4205 { 4206 parse->peer->flags |= (FLAG_PPS | FLAG_TSTAMP_PPS); 4207 parse_hardpps(parse, PARSE_HARDPPS_ENABLE); 4208 } 4209#endif 4210 } else { 4211 parse_hardpps(parse, PARSE_HARDPPS_DISABLE); 4212 parse->peer->flags &= ~(FLAG_PPS | FLAG_TSTAMP_PPS); 4213 } 4214 4215 /* 4216 * ready, unless the machine wants a sample or 4217 * we are in fast startup mode (peer->dist > MAXDISTANCE) 4218 */ 4219 if (!parse->pollneeddata && parse->peer->disp <= MAXDISTANCE) 4220 return; 4221 4222 parse->pollneeddata = 0; 4223 4224 parse->timedata.parse_state &= ~(unsigned)(PARSEB_PPS|PARSEB_S_PPS); 4225 4226 refclock_receive(parse->peer); 4227} 4228 4229/**=========================================================================== 4230 ** special code for special clocks 4231 **/ 4232 4233static void 4234mk_utcinfo( 4235 char *t, /* pointer to the output string buffer */ 4236 uint16_t wnt, 4237 uint16_t wnlsf, 4238 int dn, 4239 int dtls, 4240 int dtlsf, 4241 int size /* size of the output string buffer */ 4242 ) 4243{ 4244 /* 4245 * The week number transmitted by the GPS satellites for the leap date 4246 * is truncated to 8 bits only. If the nearest leap second date is off 4247 * the current date by more than +/- 128 weeks then conversion to a 4248 * calendar date is ambiguous. On the other hand, if a leap second is 4249 * currently being announced (i.e. dtlsf != dtls) then the week number 4250 * wnlsf is close enough, and we can unambiguously determine the date 4251 * for which the leap second is scheduled. 4252 */ 4253 if ( dtlsf != dtls ) 4254 { 4255 time_t t_ls; 4256 struct tm *tm; 4257 int nc; 4258 4259 wnlsf = basedate_expand_gpsweek(wnlsf); 4260 /* 'wnt' not used here: would need the same treatment as 'wnlsf */ 4261 4262 t_ls = (time_t) wnlsf * SECSPERWEEK 4263 + (time_t) dn * SECSPERDAY 4264 + GPS_SEC_BIAS - 1; 4265 4266 tm = gmtime( &t_ls ); 4267 if (tm == NULL) /* gmtime() failed */ 4268 { 4269 snprintf( t, size, "** (gmtime() failed in mk_utcinfo())" ); 4270 return; 4271 } 4272 4273 nc = snprintf( t, size, "UTC offset transition from %is to %is due to leap second %s", 4274 dtls, dtlsf, ( dtls < dtlsf ) ? "insertion" : "deletion" ); 4275 if (nc < 0) 4276 nc = strlen(t); 4277 else if (nc > size) 4278 nc = size; 4279 4280 snprintf( t + nc, size - nc, " at UTC midnight at the end of %s, %04i-%02i-%02i", 4281 daynames[tm->tm_wday], tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday ); 4282 } 4283 else 4284 { 4285 snprintf( t, size, "UTC offset parameter: %is, no leap second announced.\n", dtls ); 4286 } 4287 4288} 4289 4290#ifdef CLOCK_MEINBERG 4291/**=========================================================================== 4292 ** Meinberg GPS receiver support 4293 **/ 4294 4295/*------------------------------------------------------------ 4296 * gps16x_message - process messages from Meinberg GPS receiver 4297 */ 4298static void 4299gps16x_message( 4300 struct parseunit *parse, 4301 parsetime_t *parsetime 4302 ) 4303{ 4304 if (parse->timedata.parse_msglen && parsetime->parse_msg[0] == SOH) 4305 { 4306 GPS_MSG_HDR header; 4307 unsigned char *bufp = (unsigned char *)parsetime->parse_msg + 1; 4308 4309#ifdef DEBUG 4310 if (debug > 2) 4311 { 4312 char msgbuffer[600]; 4313 4314 mkreadable(msgbuffer, sizeof(msgbuffer), (char *)parsetime->parse_msg, parsetime->parse_msglen, 1); 4315 printf("PARSE receiver #%d: received message (%d bytes) >%s<\n", 4316 CLK_UNIT(parse->peer), 4317 parsetime->parse_msglen, 4318 msgbuffer); 4319 } 4320#endif 4321 get_mbg_header(&bufp, &header); 4322 if (header.hdr_csum == mbg_csum(parsetime->parse_msg + 1, 6) && 4323 (header.len == 0 || 4324 (header.len < sizeof(parsetime->parse_msg) && 4325 header.data_csum == mbg_csum(bufp, header.len)))) 4326 { 4327 /* 4328 * clean message 4329 */ 4330 switch (header.cmd) 4331 { 4332 case GPS_SW_REV: 4333 { 4334 char buffer[64]; 4335 SW_REV gps_sw_rev; 4336 4337 get_mbg_sw_rev(&bufp, &gps_sw_rev); 4338 snprintf(buffer, sizeof(buffer), "meinberg_gps_version=\"%x.%02x%s%s\"", 4339 (gps_sw_rev.code >> 8) & 0xFF, 4340 gps_sw_rev.code & 0xFF, 4341 gps_sw_rev.name[0] ? " " : "", 4342 gps_sw_rev.name); 4343 set_var(&parse->kv, buffer, strlen(buffer)+1, RO|DEF); 4344 } 4345 break; 4346 4347 case GPS_BVAR_STAT: 4348 { 4349 static struct state 4350 { 4351 BVAR_STAT flag; /* status flag */ 4352 const char *string; /* bit name */ 4353 } states[] = 4354 { 4355 { BVAR_CFGH_INVALID, "Configuration/Health" }, 4356 { BVAR_ALM_NOT_COMPLETE, "Almanachs" }, 4357 { BVAR_UTC_INVALID, "UTC Correction" }, 4358 { BVAR_IONO_INVALID, "Ionospheric Correction" }, 4359 { BVAR_RCVR_POS_INVALID, "Receiver Position" }, 4360 { 0, "" } 4361 }; 4362 BVAR_STAT status; 4363 struct state *s = states; 4364 char buffer[512]; 4365 char *p, *b; 4366 4367 status = (BVAR_STAT) get_lsb_short(&bufp); 4368 p = b = buffer; 4369 p = ap(buffer, sizeof(buffer), p, 4370 "meinberg_gps_status=\"[0x%04x] ", 4371 status); 4372 4373 if (status) 4374 { 4375 p = ap(buffer, sizeof(buffer), p, "incomplete buffered data: "); 4376 b = p; 4377 while (s->flag) 4378 { 4379 if (status & s->flag) 4380 { 4381 if (p != b) 4382 { 4383 p = ap(buffer, sizeof(buffer), p, ", "); 4384 } 4385 4386 p = ap(buffer, sizeof(buffer), p, "%s", (const char *)s->string); 4387 } 4388 s++; 4389 } 4390 p = ap(buffer, sizeof(buffer), p, "\""); 4391 } 4392 else 4393 { 4394 p = ap(buffer, sizeof(buffer), p, "<all buffered data complete>\""); 4395 } 4396 4397 set_var(&parse->kv, buffer, strlen(buffer)+1, RO|DEF); 4398 } 4399 break; 4400 4401 case GPS_POS_XYZ: 4402 { 4403 XYZ xyz; 4404 char buffer[256]; 4405 4406 get_mbg_xyz(&bufp, xyz); 4407 snprintf(buffer, sizeof(buffer), "gps_position(XYZ)=\"%s m, %s m, %s m\"", 4408 mfptoa(xyz[XP].l_ui, xyz[XP].l_uf, 1), 4409 mfptoa(xyz[YP].l_ui, xyz[YP].l_uf, 1), 4410 mfptoa(xyz[ZP].l_ui, xyz[ZP].l_uf, 1)); 4411 4412 set_var(&parse->kv, buffer, sizeof(buffer), RO|DEF); 4413 } 4414 break; 4415 4416 case GPS_POS_LLA: 4417 { 4418 LLA lla; 4419 char buffer[256]; 4420 4421 get_mbg_lla(&bufp, lla); 4422 4423 snprintf(buffer, sizeof(buffer), "gps_position(LLA)=\"%s deg, %s deg, %s m\"", 4424 mfptoa(lla[LAT].l_ui, lla[LAT].l_uf, 4), 4425 mfptoa(lla[LON].l_ui, lla[LON].l_uf, 4), 4426 mfptoa(lla[ALT].l_ui, lla[ALT].l_uf, 1)); 4427 4428 set_var(&parse->kv, buffer, sizeof(buffer), RO|DEF); 4429 } 4430 break; 4431 4432 case GPS_TZDL: 4433 break; 4434 4435 case GPS_PORT_PARM: 4436 break; 4437 4438 case GPS_SYNTH: 4439 break; 4440 4441 case GPS_ANT_INFO: 4442 { 4443 ANT_INFO antinfo; 4444 char buffer[512]; 4445 char *p, *q; 4446 4447 get_mbg_antinfo(&bufp, &antinfo); 4448 p = buffer; 4449 p = ap(buffer, sizeof(buffer), p, "meinberg_antenna_status=\""); 4450 switch (antinfo.status) 4451 { 4452 case ANT_INVALID: // No other fields valid since antenna has not yet been disconnected 4453 p = ap(buffer, sizeof(buffer), 4454 p, "<OK>"); 4455 break; 4456 4457 case ANT_DISCONN: // Antenna is disconnected, tm_reconn and delta_t not yet set 4458 q = ap(buffer, sizeof(buffer), 4459 p, "DISCONNECTED since "); 4460 NLOG(NLOG_CLOCKSTATUS) 4461 ERR(ERR_BADSTATUS) 4462 msyslog(LOG_ERR,"PARSE receiver #%d: ANTENNA FAILURE: %s", 4463 CLK_UNIT(parse->peer), p); 4464 4465 p = q; 4466 mbg_tm_str(&p, &antinfo.tm_disconn, BUFFER_SIZE(buffer, p), 0); 4467 *p = '\0'; 4468 break; 4469 4470 case ANT_RECONN: // Antenna had been disconnect, but receiver sync. after reconnect, so all fields valid 4471 p = ap(buffer, sizeof(buffer), 4472 p, "SYNC AFTER RECONNECT on "); 4473 mbg_tm_str(&p, &antinfo.tm_reconn, BUFFER_SIZE(buffer, p), 0); 4474 p = ap(buffer, sizeof(buffer), 4475 p, ", clock offset at reconnect %c%ld.%07ld s, disconnect time ", 4476 (antinfo.delta_t < 0) ? '-' : '+', 4477 (long) ABS(antinfo.delta_t) / 10000, 4478 (long) ABS(antinfo.delta_t) % 10000); 4479 mbg_tm_str(&p, &antinfo.tm_disconn, BUFFER_SIZE(buffer, p), 0); 4480 *p = '\0'; 4481 break; 4482 4483 default: 4484 p = ap(buffer, sizeof(buffer), 4485 p, "bad status 0x%04x", 4486 antinfo.status); 4487 break; 4488 } 4489 4490 p = ap(buffer, sizeof(buffer), p, "\""); 4491 4492 set_var(&parse->kv, buffer, sizeof(buffer), RO|DEF); 4493 } 4494 break; 4495 4496 case GPS_UCAP: 4497 break; 4498 4499 case GPS_CFGH: 4500 { 4501 CFGH cfgh; 4502 char buffer[512]; 4503 char *p; 4504 4505 get_mbg_cfgh(&bufp, &cfgh); 4506 if (cfgh.valid) 4507 { 4508 const char *cp; 4509 uint16_t tmp_val; 4510 int i; 4511 4512 p = buffer; 4513 p = ap(buffer, sizeof(buffer), 4514 p, "gps_tot_51=\""); 4515 mbg_tgps_str(&p, &cfgh.tot_51, BUFFER_SIZE(buffer, p)); 4516 p = ap(buffer, sizeof(buffer), 4517 p, "\""); 4518 set_var(&parse->kv, buffer, sizeof(buffer), RO|COND_DEF); 4519 4520 p = buffer; 4521 p = ap(buffer, sizeof(buffer), 4522 p, "gps_tot_63=\""); 4523 mbg_tgps_str(&p, &cfgh.tot_63, BUFFER_SIZE(buffer, p)); 4524 p = ap(buffer, sizeof(buffer), 4525 p, "\""); 4526 set_var(&parse->kv, buffer, sizeof(buffer), RO|COND_DEF); 4527 4528 p = buffer; 4529 p = ap(buffer, sizeof(buffer), 4530 p, "gps_t0a=\""); 4531 mbg_tgps_str(&p, &cfgh.t0a, BUFFER_SIZE(buffer, p)); 4532 p = ap(buffer, sizeof(buffer), 4533 p, "\""); 4534 set_var(&parse->kv, buffer, sizeof(buffer), RO|COND_DEF); 4535 4536 for (i = 0; i < N_SVNO_GPS; i++) 4537 { 4538 p = buffer; 4539 p = ap(buffer, sizeof(buffer), p, "sv_info[%d]=\"PRN%d", i, i + N_SVNO_GPS); 4540 4541 tmp_val = cfgh.health[i]; /* a 6 bit SV health code */ 4542 p = ap(buffer, sizeof(buffer), p, "; health=0x%02x (", tmp_val); 4543 /* "All Ones" has a special meaning" */ 4544 if (tmp_val == 0x3F) /* satellite is unusable or doesn't even exist */ 4545 cp = "SV UNAVAILABLE"; 4546 else { 4547 /* The MSB contains a summary of the 3 MSBs of the 8 bit health code, 4548 * indicating if the data sent by the satellite is OK or not. */ 4549 p = ap(buffer, sizeof(buffer), p, "DATA %s, ", (tmp_val & 0x20) ? "BAD" : "OK" ); 4550 4551 /* The 5 LSBs contain the status of the different signals sent by the satellite. */ 4552 switch (tmp_val & 0x1F) 4553 { 4554 case 0x00: cp = "SIGNAL OK"; break; 4555 /* codes 0x01 through 0x1B indicate that one or more 4556 * specific signal components are weak or dead. 4557 * We don't decode this here in detail. */ 4558 case 0x1C: cp = "SV IS TEMP OUT"; break; 4559 case 0x1D: cp = "SV WILL BE TEMP OUT"; break; 4560 default: cp = "TRANSMISSION PROBLEMS"; break; 4561 } 4562 } 4563 p = ap(buffer, sizeof(buffer), p, "%s)", cp ); 4564 4565 tmp_val = cfgh.cfg[i]; /* a 4 bit SV configuration/type code */ 4566 p = ap(buffer, sizeof(buffer), p, "; cfg=0x%02x (", tmp_val); 4567 switch (tmp_val & 0x7) 4568 { 4569 case 0x00: cp = "(reserved)"; break; 4570 case 0x01: cp = "BLOCK II/IIA/IIR"; break; 4571 case 0x02: cp = "BLOCK IIR-M"; break; 4572 case 0x03: cp = "BLOCK IIF"; break; 4573 case 0x04: cp = "BLOCK III"; break; 4574 default: cp = "unknown SV type"; break; 4575 } 4576 p = ap(buffer, sizeof(buffer), p, "%s", cp ); 4577 if (tmp_val & 0x08) /* A-S is on, P-code is encrypted */ 4578 p = ap( buffer, sizeof(buffer), p, ", A-S on" ); 4579 4580 p = ap(buffer, sizeof(buffer), p, ")\""); 4581 set_var(&parse->kv, buffer, sizeof(buffer), RO|COND_DEF); 4582 } 4583 } 4584 } 4585 break; 4586 4587 case GPS_ALM: 4588 break; 4589 4590 case GPS_EPH: 4591 break; 4592 4593 case GPS_UTC: 4594 { 4595 UTC utc; 4596 char buffer[512]; 4597 char *p; 4598 4599 p = buffer; 4600 4601 get_mbg_utc(&bufp, &utc); 4602 4603 if (utc.valid) 4604 { 4605 p = ap(buffer, sizeof(buffer), p, "gps_utc_correction=\""); 4606 mk_utcinfo(p, utc.t0t.wn, utc.WNlsf, utc.DNt, utc.delta_tls, utc.delta_tlsf, BUFFER_SIZE(buffer, p)); 4607 p += strlen(p); 4608 p = ap(buffer, sizeof(buffer), p, "\""); 4609 } 4610 else 4611 { 4612 p = ap(buffer, sizeof(buffer), p, "gps_utc_correction=\"<NO UTC DATA>\""); 4613 } 4614 set_var(&parse->kv, buffer, sizeof(buffer), RO|DEF); 4615 } 4616 break; 4617 4618 case GPS_IONO: 4619 break; 4620 4621 case GPS_ASCII_MSG: 4622 { 4623 ASCII_MSG gps_ascii_msg; 4624 char buffer[128]; 4625 4626 get_mbg_ascii_msg(&bufp, &gps_ascii_msg); 4627 4628 if (gps_ascii_msg.valid) 4629 { 4630 char buffer1[128]; 4631 mkreadable(buffer1, sizeof(buffer1), gps_ascii_msg.s, strlen(gps_ascii_msg.s), (int)0); 4632 4633 snprintf(buffer, sizeof(buffer), "gps_message=\"%s\"", buffer1); 4634 } 4635 else 4636 snprintf(buffer, sizeof(buffer), "gps_message=<NONE>"); 4637 4638 set_var(&parse->kv, buffer, sizeof(buffer), RO|DEF); 4639 } 4640 4641 break; 4642 4643 default: 4644 break; 4645 } 4646 } 4647 else 4648 { 4649 msyslog(LOG_DEBUG, "PARSE receiver #%d: gps16x_message: message checksum error: hdr_csum = 0x%x (expected 0x%x), " 4650 "data_len = %d, data_csum = 0x%x (expected 0x%x)", 4651 CLK_UNIT(parse->peer), 4652 header.hdr_csum, mbg_csum(parsetime->parse_msg + 1, 6), 4653 header.len, 4654 header.data_csum, mbg_csum(bufp, (unsigned)((header.len < sizeof(parsetime->parse_msg)) ? header.len : 0))); 4655 } 4656 } 4657 4658 return; 4659} 4660 4661/*------------------------------------------------------------ 4662 * gps16x_poll - query the reciver peridically 4663 */ 4664static void 4665gps16x_poll( 4666 struct peer *peer 4667 ) 4668{ 4669 struct parseunit *parse = peer->procptr->unitptr; 4670 4671 static GPS_MSG_HDR sequence[] = 4672 { 4673 { GPS_SW_REV, 0, 0, 0 }, 4674 { GPS_BVAR_STAT, 0, 0, 0 }, 4675 { GPS_UTC, 0, 0, 0 }, 4676 { GPS_ASCII_MSG, 0, 0, 0 }, 4677 { GPS_ANT_INFO, 0, 0, 0 }, 4678 { GPS_CFGH, 0, 0, 0 }, 4679 { GPS_POS_XYZ, 0, 0, 0 }, 4680 { GPS_POS_LLA, 0, 0, 0 }, 4681 { (unsigned short)~0, 0, 0, 0 } 4682 }; 4683 4684 int rtc; 4685 unsigned char cmd_buffer[64]; 4686 unsigned char *outp = cmd_buffer; 4687 GPS_MSG_HDR *header; 4688 4689 if (((poll_info_t *)parse->parse_type->cl_data)->rate) 4690 { 4691 parse->peer->procptr->nextaction = current_time + ((poll_info_t *)parse->parse_type->cl_data)->rate; 4692 } 4693 4694 if (sequence[parse->localstate].cmd == (unsigned short)~0) 4695 parse->localstate = 0; 4696 4697 header = sequence + parse->localstate++; 4698 4699 *outp++ = SOH; /* start command */ 4700 4701 put_mbg_header(&outp, header); 4702 outp = cmd_buffer + 1; 4703 4704 header->hdr_csum = (short)mbg_csum(outp, 6); 4705 put_mbg_header(&outp, header); 4706 4707#ifdef DEBUG 4708 if (debug > 2) 4709 { 4710 char buffer[128]; 4711 4712 mkreadable(buffer, sizeof(buffer), (char *)cmd_buffer, (unsigned)(outp - cmd_buffer), 1); 4713 printf("PARSE receiver #%d: transmitted message #%ld (%d bytes) >%s<\n", 4714 CLK_UNIT(parse->peer), 4715 parse->localstate - 1, 4716 (int)(outp - cmd_buffer), 4717 buffer); 4718 } 4719#endif 4720 4721 rtc = (int) write(parse->generic->io.fd, cmd_buffer, (unsigned long)(outp - cmd_buffer)); 4722 4723 if (rtc < 0) 4724 { 4725 ERR(ERR_BADIO) 4726 msyslog(LOG_ERR, "PARSE receiver #%d: gps16x_poll: failed to send cmd to clock: %m", CLK_UNIT(parse->peer)); 4727 } 4728 else 4729 if (rtc != outp - cmd_buffer) 4730 { 4731 ERR(ERR_BADIO) 4732 msyslog(LOG_ERR, "PARSE receiver #%d: gps16x_poll: failed to send cmd incomplete (%d of %d bytes sent)", CLK_UNIT(parse->peer), rtc, (int)(outp - cmd_buffer)); 4733 } 4734 4735 clear_err(parse, ERR_BADIO); 4736 return; 4737} 4738 4739/*-------------------------------------------------- 4740 * init routine - setup timer 4741 */ 4742static int 4743gps16x_poll_init( 4744 struct parseunit *parse 4745 ) 4746{ 4747 if (((poll_info_t *)parse->parse_type->cl_data)->rate) 4748 { 4749 parse->peer->procptr->action = gps16x_poll; 4750 gps16x_poll(parse->peer); 4751 } 4752 4753 return 0; 4754} 4755 4756#else 4757static void 4758gps16x_message( 4759 struct parseunit *parse, 4760 parsetime_t *parsetime 4761 ) 4762{} 4763static int 4764gps16x_poll_init( 4765 struct parseunit *parse 4766 ) 4767{ 4768 return 1; 4769} 4770#endif /* CLOCK_MEINBERG */ 4771 4772/**=========================================================================== 4773 ** clock polling support 4774 **/ 4775 4776/*-------------------------------------------------- 4777 * direct poll routine 4778 */ 4779static void 4780poll_dpoll( 4781 struct parseunit *parse 4782 ) 4783{ 4784 long rtc; 4785 const char *ps = ((poll_info_t *)parse->parse_type->cl_data)->string; 4786 long ct = ((poll_info_t *)parse->parse_type->cl_data)->count; 4787 4788 rtc = write(parse->generic->io.fd, ps, ct); 4789 if (rtc < 0) 4790 { 4791 ERR(ERR_BADIO) 4792 msyslog(LOG_ERR, "PARSE receiver #%d: poll_dpoll: failed to send cmd to clock: %m", CLK_UNIT(parse->peer)); 4793 } 4794 else 4795 if (rtc != ct) 4796 { 4797 ERR(ERR_BADIO) 4798 msyslog(LOG_ERR, "PARSE receiver #%d: poll_dpoll: failed to send cmd incomplete (%ld of %ld bytes sent)", CLK_UNIT(parse->peer), rtc, ct); 4799 } 4800 clear_err(parse, ERR_BADIO); 4801} 4802 4803/*-------------------------------------------------- 4804 * periodic poll routine 4805 */ 4806static void 4807poll_poll( 4808 struct peer *peer 4809 ) 4810{ 4811 struct parseunit *parse = peer->procptr->unitptr; 4812 4813 if (parse->parse_type->cl_poll) 4814 parse->parse_type->cl_poll(parse); 4815 4816 if (((poll_info_t *)parse->parse_type->cl_data)->rate) 4817 { 4818 parse->peer->procptr->nextaction = current_time + ((poll_info_t *)parse->parse_type->cl_data)->rate; 4819 } 4820} 4821 4822/*-------------------------------------------------- 4823 * init routine - setup timer 4824 */ 4825static int 4826poll_init( 4827 struct parseunit *parse 4828 ) 4829{ 4830 if (((poll_info_t *)parse->parse_type->cl_data)->rate) 4831 { 4832 parse->peer->procptr->action = poll_poll; 4833 poll_poll(parse->peer); 4834 } 4835 4836 return 0; 4837} 4838 4839/**=========================================================================== 4840 ** Trimble support 4841 **/ 4842 4843/*------------------------------------------------------------- 4844 * trimble TAIP init routine - setup EOL and then do poll_init. 4845 */ 4846static int 4847trimbletaip_init( 4848 struct parseunit *parse 4849 ) 4850{ 4851#ifdef HAVE_TERMIOS 4852 struct termios tio; 4853#endif 4854#ifdef HAVE_SYSV_TTYS 4855 struct termio tio; 4856#endif 4857 /* 4858 * configure terminal line for trimble receiver 4859 */ 4860 if (TTY_GETATTR(parse->generic->io.fd, &tio) == -1) 4861 { 4862 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletaip_init: tcgetattr(fd, &tio): %m", CLK_UNIT(parse->peer)); 4863 return 0; 4864 } 4865 else 4866 { 4867 tio.c_cc[VEOL] = TRIMBLETAIP_EOL; 4868 4869 if (TTY_SETATTR(parse->generic->io.fd, &tio) == -1) 4870 { 4871 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletaip_init: tcsetattr(fd, &tio): %m", CLK_UNIT(parse->peer)); 4872 return 0; 4873 } 4874 } 4875 return poll_init(parse); 4876} 4877 4878/*-------------------------------------------------- 4879 * trimble TAIP event routine - reset receiver upon data format trouble 4880 */ 4881static const char *taipinit[] = { 4882 ">FPV00000000<", 4883 ">SRM;ID_FLAG=F;CS_FLAG=T;EC_FLAG=F;FR_FLAG=T;CR_FLAG=F<", 4884 ">FTM00020001<", 4885 (char *)0 4886}; 4887 4888static void 4889trimbletaip_event( 4890 struct parseunit *parse, 4891 int event 4892 ) 4893{ 4894 switch (event) 4895 { 4896 case CEVNT_BADREPLY: /* reset on garbled input */ 4897 case CEVNT_TIMEOUT: /* reset on no input */ 4898 { 4899 const char **iv; 4900 4901 iv = taipinit; 4902 while (*iv) 4903 { 4904 int rtc = (int) write(parse->generic->io.fd, *iv, strlen(*iv)); 4905 if (rtc < 0) 4906 { 4907 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletaip_event: failed to send cmd to clock: %m", CLK_UNIT(parse->peer)); 4908 return; 4909 } 4910 else 4911 { 4912 if (rtc != (int)strlen(*iv)) 4913 { 4914 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletaip_event: failed to send cmd incomplete (%d of %d bytes sent)", 4915 CLK_UNIT(parse->peer), rtc, (int)strlen(*iv)); 4916 return; 4917 } 4918 } 4919 iv++; 4920 } 4921 4922 NLOG(NLOG_CLOCKINFO) 4923 ERR(ERR_BADIO) 4924 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletaip_event: RECEIVER INITIALIZED", 4925 CLK_UNIT(parse->peer)); 4926 } 4927 break; 4928 4929 default: /* ignore */ 4930 break; 4931 } 4932} 4933 4934/* 4935 * This driver supports the Trimble SVee Six Plus GPS receiver module. 4936 * It should support other Trimble receivers which use the Trimble Standard 4937 * Interface Protocol (see below). 4938 * 4939 * The module has a serial I/O port for command/data and a 1 pulse-per-second 4940 * output, about 1 microsecond wide. The leading edge of the pulse is 4941 * coincident with the change of the GPS second. This is the same as 4942 * the change of the UTC second +/- ~1 microsecond. Some other clocks 4943 * specifically use a feature in the data message as a timing reference, but 4944 * the SVee Six Plus does not do this. In fact there is considerable jitter 4945 * on the timing of the messages, so this driver only supports the use 4946 * of the PPS pulse for accurate timing. Where it is determined that 4947 * the offset is way off, when first starting up ntpd for example, 4948 * the timing of the data stream is used until the offset becomes low enough 4949 * (|offset| < CLOCK_MAX), at which point the pps offset is used. 4950 * 4951 * It can use either option for receiving PPS information - the 'ppsclock' 4952 * stream pushed onto the serial data interface to timestamp the Carrier 4953 * Detect interrupts, where the 1PPS connects to the CD line. This only 4954 * works on SunOS 4.1.x currently. To select this, define PPSPPS in 4955 * Config.local. The other option is to use a pulse-stretcher/level-converter 4956 * to convert the PPS pulse into a RS232 start pulse & feed this into another 4957 * tty port. To use this option, define PPSCLK in Config.local. The pps input, 4958 * by whichever method, is handled in ntp_loopfilter.c 4959 * 4960 * The receiver uses a serial message protocol called Trimble Standard 4961 * Interface Protocol (it can support others but this driver only supports 4962 * TSIP). Messages in this protocol have the following form: 4963 * 4964 * <DLE><id> ... <data> ... <DLE><ETX> 4965 * 4966 * Any bytes within the <data> portion of value 10 hex (<DLE>) are doubled 4967 * on transmission and compressed back to one on reception. Otherwise 4968 * the values of data bytes can be anything. The serial interface is RS-422 4969 * asynchronous using 9600 baud, 8 data bits with odd party (**note** 9 bits 4970 * in total!), and 1 stop bit. The protocol supports byte, integer, single, 4971 * and double datatypes. Integers are two bytes, sent most significant first. 4972 * Singles are IEEE754 single precision floating point numbers (4 byte) sent 4973 * sign & exponent first. Doubles are IEEE754 double precision floating point 4974 * numbers (8 byte) sent sign & exponent first. 4975 * The receiver supports a large set of messages, only a small subset of 4976 * which are used here. From driver to receiver the following are used: 4977 * 4978 * ID Description 4979 * 4980 * 21 Request current time 4981 * 22 Mode Select 4982 * 2C Set/Request operating parameters 4983 * 2F Request UTC info 4984 * 35 Set/Request I/O options 4985 4986 * From receiver to driver the following are recognised: 4987 * 4988 * ID Description 4989 * 4990 * 41 GPS Time 4991 * 44 Satellite selection, PDOP, mode 4992 * 46 Receiver health 4993 * 4B Machine code/status 4994 * 4C Report operating parameters (debug only) 4995 * 4F UTC correction data (used to get leap second warnings) 4996 * 55 I/O options (debug only) 4997 * 4998 * All others are accepted but ignored. 4999 * 5000 */ 5001 5002#define PI 3.1415926535898 /* lots of sig figs */ 5003#define D2R PI/180.0 5004 5005/*------------------------------------------------------------------- 5006 * sendcmd, sendbyte, sendetx, sendflt, sendint implement the command 5007 * interface to the receiver. 5008 * 5009 * CAVEAT: the sendflt, sendint routines are byte order dependend and 5010 * float implementation dependend - these must be converted to portable 5011 * versions ! 5012 * 5013 * CURRENT LIMITATION: float implementation. This runs only on systems 5014 * with IEEE754 floats as native floats 5015 */ 5016 5017typedef struct trimble 5018{ 5019 u_long last_msg; /* last message received */ 5020 u_long last_reset; /* last time a reset was issued */ 5021 u_char qtracking; /* query tracking status */ 5022 u_long ctrack; /* current tracking set */ 5023 u_long ltrack; /* last tracking set */ 5024} trimble_t; 5025 5026union uval { 5027 u_char bd[8]; 5028 int iv; 5029 float fv; 5030 double dv; 5031}; 5032 5033struct txbuf 5034{ 5035 short idx; /* index to first unused byte */ 5036 u_char *txt; /* pointer to actual data buffer */ 5037}; 5038 5039void sendcmd (struct txbuf *buf, int c); 5040void sendbyte (struct txbuf *buf, int b); 5041void sendetx (struct txbuf *buf, struct parseunit *parse); 5042void sendint (struct txbuf *buf, int a); 5043void sendflt (struct txbuf *buf, double a); 5044 5045void 5046sendcmd( 5047 struct txbuf *buf, 5048 int c 5049 ) 5050{ 5051 buf->txt[0] = DLE; 5052 buf->txt[1] = (u_char)c; 5053 buf->idx = 2; 5054} 5055 5056void sendcmd (struct txbuf *buf, int c); 5057void sendbyte (struct txbuf *buf, int b); 5058void sendetx (struct txbuf *buf, struct parseunit *parse); 5059void sendint (struct txbuf *buf, int a); 5060void sendflt (struct txbuf *buf, double a); 5061 5062void 5063sendbyte( 5064 struct txbuf *buf, 5065 int b 5066 ) 5067{ 5068 if (b == DLE) 5069 buf->txt[buf->idx++] = DLE; 5070 buf->txt[buf->idx++] = (u_char)b; 5071} 5072 5073void 5074sendetx( 5075 struct txbuf *buf, 5076 struct parseunit *parse 5077 ) 5078{ 5079 buf->txt[buf->idx++] = DLE; 5080 buf->txt[buf->idx++] = ETX; 5081 5082 if (write(parse->generic->io.fd, buf->txt, (unsigned long)buf->idx) != buf->idx) 5083 { 5084 ERR(ERR_BADIO) 5085 msyslog(LOG_ERR, "PARSE receiver #%d: sendetx: failed to send cmd to clock: %m", CLK_UNIT(parse->peer)); 5086 } 5087 else 5088 { 5089#ifdef DEBUG 5090 if (debug > 2) 5091 { 5092 char buffer[256]; 5093 5094 mkreadable(buffer, sizeof(buffer), (char *)buf->txt, (unsigned)buf->idx, 1); 5095 printf("PARSE receiver #%d: transmitted message (%d bytes) >%s<\n", 5096 CLK_UNIT(parse->peer), 5097 buf->idx, buffer); 5098 } 5099#endif 5100 clear_err(parse, ERR_BADIO); 5101 } 5102} 5103 5104void 5105sendint( 5106 struct txbuf *buf, 5107 int a 5108 ) 5109{ 5110 /* send 16bit int, msbyte first */ 5111 sendbyte(buf, (u_char)((a>>8) & 0xff)); 5112 sendbyte(buf, (u_char)(a & 0xff)); 5113} 5114 5115void 5116sendflt( 5117 struct txbuf *buf, 5118 double a 5119 ) 5120{ 5121 int i; 5122 union uval uval; 5123 5124 uval.fv = (float) a; 5125#ifdef WORDS_BIGENDIAN 5126 for (i=0; i<=3; i++) 5127#else 5128 for (i=3; i>=0; i--) 5129#endif 5130 sendbyte(buf, uval.bd[i]); 5131} 5132 5133#define TRIM_POS_OPT 0x13 /* output position with high precision */ 5134#define TRIM_TIME_OPT 0x03 /* use UTC time stamps, on second */ 5135 5136/*-------------------------------------------------- 5137 * trimble TSIP setup routine 5138 */ 5139static int 5140trimbletsip_setup( 5141 struct parseunit *parse, 5142 const char *reason 5143 ) 5144{ 5145 u_char buffer[256]; 5146 struct txbuf buf; 5147 trimble_t *t = parse->localdata; 5148 5149 if (t && t->last_reset && 5150 ((t->last_reset + TRIMBLE_RESET_HOLDOFF) > current_time)) { 5151 return 1; /* not yet */ 5152 } 5153 5154 if (t) 5155 t->last_reset = current_time; 5156 5157 buf.txt = buffer; 5158 5159 sendcmd(&buf, CMD_CVERSION); /* request software versions */ 5160 sendetx(&buf, parse); 5161 5162 sendcmd(&buf, CMD_COPERPARAM); /* set operating parameters */ 5163 sendbyte(&buf, 4); /* static */ 5164 sendflt(&buf, 5.0*D2R); /* elevation angle mask = 10 deg XXX */ 5165 sendflt(&buf, 4.0); /* s/n ratio mask = 6 XXX */ 5166 sendflt(&buf, 12.0); /* PDOP mask = 12 */ 5167 sendflt(&buf, 8.0); /* PDOP switch level = 8 */ 5168 sendetx(&buf, parse); 5169 5170 sendcmd(&buf, CMD_CMODESEL); /* fix mode select */ 5171 sendbyte(&buf, 1); /* time transfer mode */ 5172 sendetx(&buf, parse); 5173 5174 sendcmd(&buf, CMD_CMESSAGE); /* request system message */ 5175 sendetx(&buf, parse); 5176 5177 sendcmd(&buf, CMD_CSUPER); /* superpacket fix */ 5178 sendbyte(&buf, 0x2); /* binary mode */ 5179 sendetx(&buf, parse); 5180 5181 sendcmd(&buf, CMD_CIOOPTIONS); /* set I/O options */ 5182 sendbyte(&buf, TRIM_POS_OPT); /* position output */ 5183 sendbyte(&buf, 0x00); /* no velocity output */ 5184 sendbyte(&buf, TRIM_TIME_OPT); /* UTC, compute on seconds */ 5185 sendbyte(&buf, 0x00); /* no raw measurements */ 5186 sendetx(&buf, parse); 5187 5188 sendcmd(&buf, CMD_CUTCPARAM); /* request UTC correction data */ 5189 sendetx(&buf, parse); 5190 5191 NLOG(NLOG_CLOCKINFO) 5192 ERR(ERR_BADIO) 5193 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletsip_setup: RECEIVER RE-INITIALIZED (%s)", CLK_UNIT(parse->peer), reason); 5194 5195 return 0; 5196} 5197 5198/*-------------------------------------------------- 5199 * TRIMBLE TSIP check routine 5200 */ 5201static void 5202trimble_check( 5203 struct peer *peer 5204 ) 5205{ 5206 struct parseunit *parse = peer->procptr->unitptr; 5207 trimble_t *t = parse->localdata; 5208 u_char buffer[256]; 5209 struct txbuf buf; 5210 buf.txt = buffer; 5211 5212 if (t) 5213 { 5214 if (current_time > t->last_msg + TRIMBLETSIP_IDLE_TIME) 5215 (void)trimbletsip_setup(parse, "message timeout"); 5216 } 5217 5218 poll_poll(parse->peer); /* emit query string and re-arm timer */ 5219 5220 if (t && t->qtracking) 5221 { 5222 u_long oldsats = t->ltrack & ~t->ctrack; 5223 5224 t->qtracking = 0; 5225 t->ltrack = t->ctrack; 5226 5227 if (oldsats) 5228 { 5229 int i; 5230 5231 for (i = 0; oldsats; i++) { 5232 if (oldsats & (1 << i)) 5233 { 5234 sendcmd(&buf, CMD_CSTATTRACK); 5235 sendbyte(&buf, i+1); /* old sat */ 5236 sendetx(&buf, parse); 5237 } 5238 oldsats &= ~(1 << i); 5239 } 5240 } 5241 5242 sendcmd(&buf, CMD_CSTATTRACK); 5243 sendbyte(&buf, 0x00); /* current tracking set */ 5244 sendetx(&buf, parse); 5245 } 5246} 5247 5248/*-------------------------------------------------- 5249 * TRIMBLE TSIP end routine 5250 */ 5251static void 5252trimbletsip_end( 5253 struct parseunit *parse 5254 ) 5255{ trimble_t *t = parse->localdata; 5256 5257 if (t) 5258 { 5259 free(t); 5260 parse->localdata = NULL; 5261 } 5262 parse->peer->procptr->nextaction = 0; 5263 parse->peer->procptr->action = NULL; 5264} 5265 5266/*-------------------------------------------------- 5267 * TRIMBLE TSIP init routine 5268 */ 5269static int 5270trimbletsip_init( 5271 struct parseunit *parse 5272 ) 5273{ 5274#if defined(VEOL) || defined(VEOL2) 5275#ifdef HAVE_TERMIOS 5276 struct termios tio; /* NEEDED FOR A LONG TIME ! */ 5277#endif 5278#ifdef HAVE_SYSV_TTYS 5279 struct termio tio; /* NEEDED FOR A LONG TIME ! */ 5280#endif 5281 /* 5282 * allocate local data area 5283 */ 5284 if (!parse->localdata) 5285 { 5286 trimble_t *t; 5287 5288 t = (trimble_t *)(parse->localdata = emalloc(sizeof(trimble_t))); 5289 5290 if (t) 5291 { 5292 memset((char *)t, 0, sizeof(trimble_t)); 5293 t->last_msg = current_time; 5294 } 5295 } 5296 5297 parse->peer->procptr->action = trimble_check; 5298 parse->peer->procptr->nextaction = current_time; 5299 5300 /* 5301 * configure terminal line for ICANON mode with VEOL characters 5302 */ 5303 if (TTY_GETATTR(parse->generic->io.fd, &tio) == -1) 5304 { 5305 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletsip_init: tcgetattr(%d, &tio): %m", CLK_UNIT(parse->peer), parse->generic->io.fd); 5306 return 0; 5307 } 5308 else 5309 { 5310 if ((parse_clockinfo[CLK_TYPE(parse->peer)].cl_lflag & ICANON)) 5311 { 5312#ifdef VEOL 5313 tio.c_cc[VEOL] = ETX; 5314#endif 5315#ifdef VEOL2 5316 tio.c_cc[VEOL2] = DLE; 5317#endif 5318 } 5319 5320 if (TTY_SETATTR(parse->generic->io.fd, &tio) == -1) 5321 { 5322 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletsip_init: tcsetattr(%d, &tio): %m", CLK_UNIT(parse->peer), parse->generic->io.fd); 5323 return 0; 5324 } 5325 } 5326#endif 5327 return trimbletsip_setup(parse, "initial startup"); 5328} 5329 5330/*------------------------------------------------------------ 5331 * trimbletsip_event - handle Trimble events 5332 * simple evente handler - attempt to re-initialize receiver 5333 */ 5334static void 5335trimbletsip_event( 5336 struct parseunit *parse, 5337 int event 5338 ) 5339{ 5340 switch (event) 5341 { 5342 case CEVNT_BADREPLY: /* reset on garbled input */ 5343 case CEVNT_TIMEOUT: /* reset on no input */ 5344 (void)trimbletsip_setup(parse, "event BAD_REPLY/TIMEOUT"); 5345 break; 5346 5347 default: /* ignore */ 5348 break; 5349 } 5350} 5351 5352/* 5353 * getflt, getint convert fields in the incoming data into the 5354 * appropriate type of item 5355 * 5356 * CAVEAT: these routines are currently definitely byte order dependent 5357 * and assume Representation(float) == IEEE754 5358 * These functions MUST be converted to portable versions (especially 5359 * converting the float representation into ntp_fp formats in order 5360 * to avoid floating point operations at all! 5361 */ 5362 5363static float 5364getflt( 5365 u_char *bp 5366 ) 5367{ 5368 union uval uval; 5369 5370#ifdef WORDS_BIGENDIAN 5371 uval.bd[0] = *bp++; 5372 uval.bd[1] = *bp++; 5373 uval.bd[2] = *bp++; 5374 uval.bd[3] = *bp; 5375#else /* ! WORDS_BIGENDIAN */ 5376 uval.bd[3] = *bp++; 5377 uval.bd[2] = *bp++; 5378 uval.bd[1] = *bp++; 5379 uval.bd[0] = *bp; 5380#endif /* ! WORDS_BIGENDIAN */ 5381 return uval.fv; 5382} 5383 5384static double 5385getdbl( 5386 u_char *bp 5387 ) 5388{ 5389 union uval uval; 5390 5391#ifdef WORDS_BIGENDIAN 5392 uval.bd[0] = *bp++; 5393 uval.bd[1] = *bp++; 5394 uval.bd[2] = *bp++; 5395 uval.bd[3] = *bp++; 5396 uval.bd[4] = *bp++; 5397 uval.bd[5] = *bp++; 5398 uval.bd[6] = *bp++; 5399 uval.bd[7] = *bp; 5400#else /* ! WORDS_BIGENDIAN */ 5401 uval.bd[7] = *bp++; 5402 uval.bd[6] = *bp++; 5403 uval.bd[5] = *bp++; 5404 uval.bd[4] = *bp++; 5405 uval.bd[3] = *bp++; 5406 uval.bd[2] = *bp++; 5407 uval.bd[1] = *bp++; 5408 uval.bd[0] = *bp; 5409#endif /* ! WORDS_BIGENDIAN */ 5410 return uval.dv; 5411} 5412 5413static int 5414getshort( 5415 unsigned char *p 5416 ) 5417{ 5418 return (int) get_msb_short(&p); 5419} 5420 5421/*-------------------------------------------------- 5422 * trimbletsip_message - process trimble messages 5423 */ 5424#define RTOD (180.0 / 3.1415926535898) 5425#define mb(_X_) (buffer[2+(_X_)]) /* shortcut for buffer access */ 5426 5427static void 5428trimbletsip_message( 5429 struct parseunit *parse, 5430 parsetime_t *parsetime 5431 ) 5432{ 5433 unsigned char *buffer = parsetime->parse_msg; 5434 unsigned int size = parsetime->parse_msglen; 5435 5436 if ((size < 4) || 5437 (buffer[0] != DLE) || 5438 (buffer[size-1] != ETX) || 5439 (buffer[size-2] != DLE)) 5440 { 5441#ifdef DEBUG 5442 if (debug > 2) { 5443 size_t i; 5444 5445 printf("TRIMBLE BAD packet, size %d:\n ", size); 5446 for (i = 0; i < size; i++) { 5447 printf ("%2.2x, ", buffer[i]&0xff); 5448 if (i%16 == 15) printf("\n\t"); 5449 } 5450 printf("\n"); 5451 } 5452#endif 5453 return; 5454 } 5455 else 5456 { 5457 u_short var_flag; 5458 trimble_t *tr = parse->localdata; 5459 unsigned int cmd = buffer[1]; 5460 char pbuffer[200]; 5461 char *t = pbuffer; 5462 cmd_info_t *s; 5463 5464#ifdef DEBUG 5465 if (debug > 3) { 5466 size_t i; 5467 5468 printf("TRIMBLE packet 0x%02x, size %d:\n ", cmd, size); 5469 for (i = 0; i < size; i++) { 5470 printf ("%2.2x, ", buffer[i]&0xff); 5471 if (i%16 == 15) printf("\n\t"); 5472 } 5473 printf("\n"); 5474 } 5475#endif 5476 5477 if (tr) 5478 tr->last_msg = current_time; 5479 5480 s = trimble_convert(cmd, trimble_rcmds); 5481 5482 if (s) 5483 { 5484 t = ap(pbuffer, sizeof(pbuffer), t, "%s=\"", s->varname); 5485 } 5486 else 5487 { 5488 DPRINTF(1, ("TRIMBLE UNKNOWN COMMAND 0x%02x\n", cmd)); 5489 return; 5490 } 5491 5492 var_flag = (u_short) s->varmode; 5493 5494 switch(cmd) 5495 { 5496 case CMD_RCURTIME: 5497 t = ap(pbuffer, sizeof(pbuffer), t, "%f, %d, %f", 5498 getflt((unsigned char *)&mb(0)), getshort((unsigned char *)&mb(4)), 5499 getflt((unsigned char *)&mb(6))); 5500 break; 5501 5502 case CMD_RBEST4: 5503 t = ap(pbuffer, sizeof(pbuffer), t, "mode: "); 5504 switch (mb(0) & 0xF) 5505 { 5506 default: 5507 t = ap(pbuffer, sizeof(pbuffer), t, 5508 "0x%x", mb(0) & 0x7); 5509 break; 5510 5511 case 1: 5512 t = ap(pbuffer, sizeof(pbuffer), t, "0D"); 5513 break; 5514 5515 case 3: 5516 t = ap(pbuffer, sizeof(pbuffer), t, "2D"); 5517 break; 5518 5519 case 4: 5520 t = ap(pbuffer, sizeof(pbuffer), t, "3D"); 5521 break; 5522 } 5523 if (mb(0) & 0x10) 5524 t = ap(pbuffer, sizeof(pbuffer), t, "-MANUAL, "); 5525 else 5526 t = ap(pbuffer, sizeof(pbuffer), t, "-AUTO, "); 5527 5528 t = ap(pbuffer, sizeof(pbuffer), t, "satellites %02d %02d %02d %02d, PDOP %.2f, HDOP %.2f, VDOP %.2f, TDOP %.2f", 5529 mb(1), mb(2), mb(3), mb(4), 5530 getflt((unsigned char *)&mb(5)), 5531 getflt((unsigned char *)&mb(9)), 5532 getflt((unsigned char *)&mb(13)), 5533 getflt((unsigned char *)&mb(17))); 5534 5535 break; 5536 5537 case CMD_RVERSION: 5538 t = ap(pbuffer, sizeof(pbuffer), t, "%d.%d (%d/%d/%d)", 5539 mb(0)&0xff, mb(1)&0xff, 1900+(mb(4)&0xff), mb(2)&0xff, mb(3)&0xff); 5540 break; 5541 5542 case CMD_RRECVHEALTH: 5543 { 5544 static const char *msgs[] = 5545 { 5546 "Battery backup failed", 5547 "Signal processor error", 5548 "Alignment error, channel or chip 1", 5549 "Alignment error, channel or chip 2", 5550 "Antenna feed line fault", 5551 "Excessive ref freq. error", 5552 "<BIT 6>", 5553 "<BIT 7>" 5554 }; 5555 5556 int i, bits; 5557 5558 switch (mb(0) & 0xFF) 5559 { 5560 default: 5561 t = ap(pbuffer, sizeof(pbuffer), t, "illegal value 0x%02x", mb(0) & 0xFF); 5562 break; 5563 case 0x00: 5564 t = ap(pbuffer, sizeof(pbuffer), t, "doing position fixes"); 5565 break; 5566 case 0x01: 5567 t = ap(pbuffer, sizeof(pbuffer), t, "no GPS time yet"); 5568 break; 5569 case 0x03: 5570 t = ap(pbuffer, sizeof(pbuffer), t, "PDOP too high"); 5571 break; 5572 case 0x08: 5573 t = ap(pbuffer, sizeof(pbuffer), t, "no usable satellites"); 5574 break; 5575 case 0x09: 5576 t = ap(pbuffer, sizeof(pbuffer), t, "only ONE usable satellite"); 5577 break; 5578 case 0x0A: 5579 t = ap(pbuffer, sizeof(pbuffer), t, "only TWO usable satellites"); 5580 break; 5581 case 0x0B: 5582 t = ap(pbuffer, sizeof(pbuffer), t, "only THREE usable satellites"); 5583 break; 5584 case 0x0C: 5585 t = ap(pbuffer, sizeof(pbuffer), t, "the chosen satellite is unusable"); 5586 break; 5587 } 5588 5589 bits = mb(1) & 0xFF; 5590 5591 for (i = 0; i < 8; i++) 5592 if (bits & (0x1<<i)) 5593 { 5594 t = ap(pbuffer, sizeof(pbuffer), t, ", %s", msgs[i]); 5595 } 5596 } 5597 break; 5598 5599 case CMD_RMESSAGE: 5600 mkreadable(t, (int)BUFFER_SIZE(pbuffer, t), (char *)&mb(0), (unsigned)(size - 2 - (&mb(0) - buffer)), 0); 5601 break; 5602 5603 case CMD_RMACHSTAT: 5604 { 5605 static const char *msgs[] = 5606 { 5607 "Synthesizer Fault", 5608 "Battery Powered Time Clock Fault", 5609 "A-to-D Converter Fault", 5610 "The almanac stored in the receiver is not complete and current", 5611 "<BIT 4>", 5612 "<BIT 5", 5613 "<BIT 6>", 5614 "<BIT 7>" 5615 }; 5616 5617 int i, bits; 5618 5619 t = ap(pbuffer, sizeof(pbuffer), t, "machine id 0x%02x", mb(0) & 0xFF); 5620 bits = mb(1) & 0xFF; 5621 5622 for (i = 0; i < 8; i++) 5623 if (bits & (0x1<<i)) 5624 { 5625 t = ap(pbuffer, sizeof(pbuffer), t, ", %s", msgs[i]); 5626 } 5627 5628 t = ap(pbuffer, sizeof(pbuffer), t, ", Superpackets %ssupported", (mb(2) & 0xFF) ? "" :"un" ); 5629 } 5630 break; 5631 5632 case CMD_ROPERPARAM: 5633 t = ap(pbuffer, sizeof(pbuffer), t, "%2x %.1f %.1f %.1f %.1f", 5634 mb(0), getflt((unsigned char *)&mb(1)), getflt((unsigned char *)&mb(5)), 5635 getflt((unsigned char *)&mb(9)), getflt((unsigned char *)&mb(13))); 5636 break; 5637 5638 case CMD_RUTCPARAM: 5639 { 5640 float t0t = getflt((unsigned char *)&mb(14)); 5641 short wnt = (short) getshort((unsigned char *)&mb(18)); 5642 short dtls = (short) getshort((unsigned char *)&mb(12)); 5643 short wnlsf = (short) getshort((unsigned char *)&mb(20)); 5644 short dn = (short) getshort((unsigned char *)&mb(22)); 5645 short dtlsf = (short) getshort((unsigned char *)&mb(24)); 5646 5647 if ((int)t0t != 0) 5648 { 5649 mk_utcinfo(t, wnt, wnlsf, dn, dtls, dtlsf, BUFFER_SIZE(pbuffer, t)); 5650 } 5651 else 5652 { 5653 t = ap(pbuffer, sizeof(pbuffer), t, "<NO UTC DATA>"); 5654 } 5655 } 5656 break; 5657 5658 case CMD_RSAT1BIAS: 5659 t = ap(pbuffer, sizeof(pbuffer), t, "%.1fm %.2fm/s at %.1fs", 5660 getflt(&mb(0)), getflt(&mb(4)), getflt(&mb(8))); 5661 break; 5662 5663 case CMD_RIOOPTIONS: 5664 { 5665 t = ap(pbuffer, sizeof(pbuffer), t, "%02x %02x %02x %02x", 5666 mb(0), mb(1), mb(2), mb(3)); 5667 if (mb(0) != TRIM_POS_OPT || 5668 mb(2) != TRIM_TIME_OPT) 5669 { 5670 (void)trimbletsip_setup(parse, "bad io options"); 5671 } 5672 } 5673 break; 5674 5675 case CMD_RSPOSXYZ: 5676 { 5677 double x = getflt((unsigned char *)&mb(0)); 5678 double y = getflt((unsigned char *)&mb(4)); 5679 double z = getflt((unsigned char *)&mb(8)); 5680 double f = getflt((unsigned char *)&mb(12)); 5681 5682 if (f > 0.0) 5683 t = ap(pbuffer, sizeof(pbuffer), t, "x= %.1fm, y= %.1fm, z= %.1fm, time_of_fix= %f sec", 5684 x, y, z, 5685 f); 5686 else 5687 return; 5688 } 5689 break; 5690 5691 case CMD_RSLLAPOS: 5692 { 5693 double lat = getflt((unsigned char *)&mb(0)); 5694 double lng = getflt((unsigned char *)&mb(4)); 5695 double f = getflt((unsigned char *)&mb(12)); 5696 5697 if (f > 0.0) 5698 t = ap(pbuffer, sizeof(pbuffer), t, "lat %f %c, long %f %c, alt %.2fm", 5699 ((lat < 0.0) ? (-lat) : (lat))*RTOD, (lat < 0.0 ? 'S' : 'N'), 5700 ((lng < 0.0) ? (-lng) : (lng))*RTOD, (lng < 0.0 ? 'W' : 'E'), 5701 getflt((unsigned char *)&mb(8))); 5702 else 5703 return; 5704 } 5705 break; 5706 5707 case CMD_RDOUBLEXYZ: 5708 { 5709 double x = getdbl((unsigned char *)&mb(0)); 5710 double y = getdbl((unsigned char *)&mb(8)); 5711 double z = getdbl((unsigned char *)&mb(16)); 5712 t = ap(pbuffer, sizeof(pbuffer), t, "x= %.1fm, y= %.1fm, z= %.1fm", 5713 x, y, z); 5714 } 5715 break; 5716 5717 case CMD_RDOUBLELLA: 5718 { 5719 double lat = getdbl((unsigned char *)&mb(0)); 5720 double lng = getdbl((unsigned char *)&mb(8)); 5721 t = ap(pbuffer, sizeof(pbuffer), t, "lat %f %c, lon %f %c, alt %.2fm", 5722 ((lat < 0.0) ? (-lat) : (lat))*RTOD, (lat < 0.0 ? 'S' : 'N'), 5723 ((lng < 0.0) ? (-lng) : (lng))*RTOD, (lng < 0.0 ? 'W' : 'E'), 5724 getdbl((unsigned char *)&mb(16))); 5725 } 5726 break; 5727 5728 case CMD_RALLINVIEW: 5729 { 5730 int i, sats; 5731 5732 t = ap(pbuffer, sizeof(pbuffer), t, "mode: "); 5733 switch (mb(0) & 0x7) 5734 { 5735 default: 5736 t = ap(pbuffer, sizeof(pbuffer), t, "0x%x", mb(0) & 0x7); 5737 break; 5738 5739 case 3: 5740 t = ap(pbuffer, sizeof(pbuffer), t, "2D"); 5741 break; 5742 5743 case 4: 5744 t = ap(pbuffer, sizeof(pbuffer), t, "3D"); 5745 break; 5746 } 5747 if (mb(0) & 0x8) 5748 t = ap(pbuffer, sizeof(pbuffer), t, "-MANUAL, "); 5749 else 5750 t = ap(pbuffer, sizeof(pbuffer), t, "-AUTO, "); 5751 5752 sats = (mb(0)>>4) & 0xF; 5753 5754 t = ap(pbuffer, sizeof(pbuffer), t, "PDOP %.2f, HDOP %.2f, VDOP %.2f, TDOP %.2f, %d satellite%s in view: ", 5755 getflt((unsigned char *)&mb(1)), 5756 getflt((unsigned char *)&mb(5)), 5757 getflt((unsigned char *)&mb(9)), 5758 getflt((unsigned char *)&mb(13)), 5759 sats, (sats == 1) ? "" : "s"); 5760 5761 for (i=0; i < sats; i++) 5762 { 5763 t = ap(pbuffer, sizeof(pbuffer), t, "%s%02d", i ? ", " : "", mb(17+i)); 5764 if (tr) 5765 tr->ctrack |= (1 << (mb(17+i)-1)); 5766 } 5767 5768 if (tr) 5769 { /* mark for tracking status query */ 5770 tr->qtracking = 1; 5771 } 5772 } 5773 break; 5774 5775 case CMD_RSTATTRACK: 5776 { 5777 t = ap(pbuffer, sizeof(pbuffer), t-2, "[%02d]=\"", mb(0)); /* add index to var name */ 5778 if (getflt((unsigned char *)&mb(4)) < 0.0) 5779 { 5780 t = ap(pbuffer, sizeof(pbuffer), t, "<NO MEASUREMENTS>"); 5781 var_flag &= (u_short)(~DEF); 5782 } 5783 else 5784 { 5785 t = ap(pbuffer, sizeof(pbuffer), t, "ch=%d, acq=%s, eph=%d, signal_level= %5.2f, elevation= %5.2f, azimuth= %6.2f", 5786 (mb(1) & 0xFF)>>3, 5787 mb(2) ? ((mb(2) == 1) ? "ACQ" : "SRCH") : "NEVER", 5788 mb(3), 5789 getflt((unsigned char *)&mb(4)), 5790 getflt((unsigned char *)&mb(12)) * RTOD, 5791 getflt((unsigned char *)&mb(16)) * RTOD); 5792 if (mb(20)) 5793 { 5794 var_flag &= (u_short)(~DEF); 5795 t = ap(pbuffer, sizeof(pbuffer), t, ", OLD"); 5796 } 5797 if (mb(22)) 5798 { 5799 if (mb(22) == 1) 5800 t = ap(pbuffer, sizeof(pbuffer), t, ", BAD PARITY"); 5801 else 5802 if (mb(22) == 2) 5803 t = ap(pbuffer, sizeof(pbuffer), t, ", BAD EPH HEALTH"); 5804 } 5805 if (mb(23)) 5806 t = ap(pbuffer, sizeof(pbuffer), t, ", collecting data"); 5807 } 5808 } 5809 break; 5810 5811 default: 5812 t = ap(pbuffer, sizeof(pbuffer), t, "<UNDECODED>"); 5813 break; 5814 } 5815 5816 t = ap(pbuffer, sizeof(pbuffer), t, "\""); 5817 set_var(&parse->kv, pbuffer, sizeof(pbuffer), var_flag); 5818 } 5819} 5820 5821 5822/**============================================================ 5823 ** RAWDCF support 5824 **/ 5825 5826/*-------------------------------------------------- 5827 * rawdcf_init_1 - set up modem lines for RAWDCF receivers 5828 * SET DTR line 5829 */ 5830#if defined(TIOCMSET) && (defined(TIOCM_DTR) || defined(CIOCM_DTR)) 5831static int 5832rawdcf_init_1( 5833 struct parseunit *parse 5834 ) 5835{ 5836 /* fixed 2000 for using with Linux by Wolfram Pienkoss <wp@bszh.de> */ 5837 /* 5838 * You can use the RS232 to supply the power for a DCF77 receiver. 5839 * Here a voltage between the DTR and the RTS line is used. Unfortunately 5840 * the name has changed from CIOCM_DTR to TIOCM_DTR recently. 5841 */ 5842 int sl232; 5843 5844 if (ioctl(parse->generic->io.fd, TIOCMGET, (caddr_t)&sl232) == -1) 5845 { 5846 msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_1: WARNING: ioctl(fd, TIOCMGET, [C|T]IOCM_DTR): %m", CLK_UNIT(parse->peer)); 5847 return 0; 5848 } 5849 5850#ifdef TIOCM_DTR 5851 sl232 = (sl232 & ~TIOCM_RTS) | TIOCM_DTR; /* turn on DTR, clear RTS for power supply */ 5852#else 5853 sl232 = (sl232 & ~CIOCM_RTS) | CIOCM_DTR; /* turn on DTR, clear RTS for power supply */ 5854#endif 5855 5856 if (ioctl(parse->generic->io.fd, TIOCMSET, (caddr_t)&sl232) == -1) 5857 { 5858 msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_1: WARNING: ioctl(fd, TIOCMSET, [C|T]IOCM_DTR): %m", CLK_UNIT(parse->peer)); 5859 } 5860 return 0; 5861} 5862#else 5863static int 5864rawdcfdtr_init_1( 5865 struct parseunit *parse 5866 ) 5867{ 5868 msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_1: WARNING: OS interface incapable of setting DTR to power DCF modules", CLK_UNIT(parse->peer)); 5869 return 0; 5870} 5871#endif /* DTR initialisation type */ 5872 5873/*-------------------------------------------------- 5874 * rawdcf_init_2 - set up modem lines for RAWDCF receivers 5875 * CLR DTR line, SET RTS line 5876 */ 5877#if defined(TIOCMSET) && (defined(TIOCM_RTS) || defined(CIOCM_RTS)) 5878static int 5879rawdcf_init_2( 5880 struct parseunit *parse 5881 ) 5882{ 5883 /* fixed 2000 for using with Linux by Wolfram Pienkoss <wp@bszh.de> */ 5884 /* 5885 * You can use the RS232 to supply the power for a DCF77 receiver. 5886 * Here a voltage between the DTR and the RTS line is used. Unfortunately 5887 * the name has changed from CIOCM_DTR to TIOCM_DTR recently. 5888 */ 5889 int sl232; 5890 5891 if (ioctl(parse->generic->io.fd, TIOCMGET, (caddr_t)&sl232) == -1) 5892 { 5893 msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_2: WARNING: ioctl(fd, TIOCMGET, [C|T]IOCM_RTS): %m", CLK_UNIT(parse->peer)); 5894 return 0; 5895 } 5896 5897#ifdef TIOCM_RTS 5898 sl232 = (sl232 & ~TIOCM_DTR) | TIOCM_RTS; /* turn on RTS, clear DTR for power supply */ 5899#else 5900 sl232 = (sl232 & ~CIOCM_DTR) | CIOCM_RTS; /* turn on RTS, clear DTR for power supply */ 5901#endif 5902 5903 if (ioctl(parse->generic->io.fd, TIOCMSET, (caddr_t)&sl232) == -1) 5904 { 5905 msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_2: WARNING: ioctl(fd, TIOCMSET, [C|T]IOCM_RTS): %m", CLK_UNIT(parse->peer)); 5906 } 5907 return 0; 5908} 5909#else 5910static int 5911rawdcf_init_2( 5912 struct parseunit *parse 5913 ) 5914{ 5915 msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_2: WARNING: OS interface incapable of setting RTS to power DCF modules", CLK_UNIT(parse->peer)); 5916 return 0; 5917} 5918#endif /* DTR initialisation type */ 5919 5920#else /* defined(REFCLOCK) && defined(PARSE) */ 5921NONEMPTY_TRANSLATION_UNIT 5922#endif /* defined(REFCLOCK) && defined(PARSE) */ 5923 5924/* 5925 * History: 5926 * 5927 * refclock_parse.c,v 5928 * Revision 4.81 2009/05/01 10:15:29 kardel 5929 * use new refclock_ppsapi interface 5930 * 5931 * Revision 4.80 2007/08/11 12:06:29 kardel 5932 * update comments wrt/ to PPS 5933 * 5934 * Revision 4.79 2007/08/11 11:52:23 kardel 5935 * - terminate io bindings before io_closeclock() will close our file descriptor 5936 * 5937 * Revision 4.78 2006/12/22 20:08:27 kardel 5938 * Bug 746 (RFE): add configuration for Expert mouseCLOCK USB v2.0 as mode 19 5939 * 5940 * Revision 4.77 2006/08/05 07:44:49 kardel 5941 * support optionally separate PPS devices via /dev/refclockpps-{0..3} 5942 * 5943 * Revision 4.76 2006/06/22 18:40:47 kardel 5944 * clean up signedness (gcc 4) 5945 * 5946 * Revision 4.75 2006/06/22 16:58:10 kardel 5947 * Bug #632: call parse_ppsapi() in parse_ctl() when updating 5948 * the PPS offset. Fix sign of offset passed to kernel. 5949 * 5950 * Revision 4.74 2006/06/18 21:18:37 kardel 5951 * NetBSD Coverity CID 3796: possible NULL deref 5952 * 5953 * Revision 4.73 2006/05/26 14:23:46 kardel 5954 * cleanup of copyright info 5955 * 5956 * Revision 4.72 2006/05/26 14:19:43 kardel 5957 * cleanup of ioctl cruft 5958 * 5959 * Revision 4.71 2006/05/26 14:15:57 kardel 5960 * delay adding refclock to async refclock io after all initializations 5961 * 5962 * Revision 4.70 2006/05/25 18:20:50 kardel 5963 * bug #619 5964 * terminate parse io engine after de-registering 5965 * from refclock io engine 5966 * 5967 * Revision 4.69 2006/05/25 17:28:02 kardel 5968 * complete refclock io structure initialization *before* inserting it into the 5969 * refclock input machine (avoids null pointer deref) (bug #619) 5970 * 5971 * Revision 4.68 2006/05/01 17:02:51 kardel 5972 * copy receiver method also for newlwy created receive buffers 5973 * 5974 * Revision 4.67 2006/05/01 14:37:29 kardel 5975 * If an input buffer parses into more than one message do insert the 5976 * parsed message in a new input buffer instead of processing it 5977 * directly. This avoids deed complicated processing in signal 5978 * handling. 5979 * 5980 * Revision 4.66 2006/03/18 00:45:30 kardel 5981 * coverity fixes found in NetBSD coverity scan 5982 * 5983 * Revision 4.65 2006/01/26 06:08:33 kardel 5984 * output errno on PPS setup failure 5985 * 5986 * Revision 4.64 2005/11/09 20:44:47 kardel 5987 * utilize full PPS timestamp resolution from PPS API 5988 * 5989 * Revision 4.63 2005/10/07 22:10:25 kardel 5990 * bounded buffer implementation 5991 * 5992 * Revision 4.62.2.2 2005/09/25 10:20:16 kardel 5993 * avoid unexpected buffer overflows due to sprintf("%f") on strange floats: 5994 * replace almost all str* and *printf functions be their buffer bounded 5995 * counterparts 5996 * 5997 * Revision 4.62.2.1 2005/08/27 16:19:27 kardel 5998 * limit re-set rate of trimble clocks 5999 * 6000 * Revision 4.62 2005/08/06 17:40:00 kardel 6001 * cleanup size handling wrt/ to buffer boundaries 6002 * 6003 * Revision 4.61 2005/07/27 21:16:19 kardel 6004 * fix a long (> 11 years) misconfiguration wrt/ Meinberg cflag factory 6005 * default setup. CSTOPB was missing for the 7E2 default data format of 6006 * the DCF77 clocks. 6007 * 6008 * Revision 4.60 2005/07/17 21:14:44 kardel 6009 * change contents of version string to include the RCS/CVS Id 6010 * 6011 * Revision 4.59 2005/07/06 06:56:38 kardel 6012 * syntax error 6013 * 6014 * Revision 4.58 2005/07/04 13:10:40 kardel 6015 * fix bug 455: tripping over NULL pointer on cleanup 6016 * fix shadow storage logic for ppsphaseadjust and trustime wrt/ time2 6017 * fix compiler warnings for some platforms wrt/ printf formatstrings and 6018 * varying structure element sizes 6019 * reorder assignment in binding to avoid tripping over NULL pointers 6020 * 6021 * Revision 4.57 2005/06/25 09:25:19 kardel 6022 * sort out log output sequence 6023 * 6024 * Revision 4.56 2005/06/14 21:47:27 kardel 6025 * collect samples only if samples are ok (sync or trusted flywheel) 6026 * propagate pps phase adjustment value to kernel via PPSAPI to help HARDPPS 6027 * en- and dis-able HARDPPS in correlation to receiver sync state 6028 * 6029 * Revision 4.55 2005/06/02 21:28:31 kardel 6030 * clarify trust logic 6031 * 6032 * Revision 4.54 2005/06/02 17:06:49 kardel 6033 * change status reporting to use fixed refclock_report() 6034 * 6035 * Revision 4.53 2005/06/02 16:33:31 kardel 6036 * fix acceptance of clocks unsync clocks right at start 6037 * 6038 * Revision 4.52 2005/05/26 21:55:06 kardel 6039 * cleanup status reporting 6040 * 6041 * Revision 4.51 2005/05/26 19:19:14 kardel 6042 * implement fast refclock startup 6043 * 6044 * Revision 4.50 2005/04/16 20:51:35 kardel 6045 * set hardpps_enable = 1 when binding a kernel PPS source 6046 * 6047 * Revision 4.49 2005/04/16 17:29:26 kardel 6048 * add non polling clock type 18 for just listenning to Meinberg clocks 6049 * 6050 * Revision 4.48 2005/04/16 16:22:27 kardel 6051 * bk sync 20050415 ntp-dev 6052 * 6053 * Revision 4.47 2004/11/29 10:42:48 kardel 6054 * bk sync ntp-dev 20041129 6055 * 6056 * Revision 4.46 2004/11/29 10:26:29 kardel 6057 * keep fudgetime2 in sync with trusttime/ppsphaseadjust depending in flag1 6058 * 6059 * Revision 4.45 2004/11/14 20:53:20 kardel 6060 * clear PPS flags after using them 6061 * 6062 * Revision 4.44 2004/11/14 15:29:41 kardel 6063 * support PPSAPI, upgrade Copyright to Berkeley style 6064 * 6065 * Revision 4.43 2001/05/26 22:53:16 kardel 6066 * 20010526 reconcilation 6067 * 6068 * Revision 4.42 2000/05/14 15:31:51 kardel 6069 * PPSAPI && RAWDCF modemline support 6070 * 6071 * Revision 4.41 2000/04/09 19:50:45 kardel 6072 * fixed rawdcfdtr_init() -> rawdcf_init_1 6073 * 6074 * Revision 4.40 2000/04/09 15:27:55 kardel 6075 * modem line fiddle in rawdcf_init_2 6076 * 6077 * Revision 4.39 2000/03/18 09:16:55 kardel 6078 * PPSAPI integration 6079 * 6080 * Revision 4.38 2000/03/05 20:25:06 kardel 6081 * support PPSAPI 6082 * 6083 * Revision 4.37 2000/03/05 20:11:14 kardel 6084 * 4.0.99g reconcilation 6085 * 6086 * Revision 4.36 1999/11/28 17:18:20 kardel 6087 * disabled burst mode 6088 * 6089 * Revision 4.35 1999/11/28 09:14:14 kardel 6090 * RECON_4_0_98F 6091 * 6092 * Revision 4.34 1999/05/14 06:08:05 kardel 6093 * store current_time in a suitable container (u_long) 6094 * 6095 * Revision 4.33 1999/05/13 21:48:38 kardel 6096 * double the no response timeout interval 6097 * 6098 * Revision 4.32 1999/05/13 20:09:13 kardel 6099 * complain only about missing polls after a full poll interval 6100 * 6101 * Revision 4.31 1999/05/13 19:59:32 kardel 6102 * add clock type 16 for RTS set DTR clr in RAWDCF 6103 * 6104 * Revision 4.30 1999/02/28 20:36:43 kardel 6105 * fixed printf fmt 6106 * 6107 * Revision 4.29 1999/02/28 19:58:23 kardel 6108 * updated copyright information 6109 * 6110 * Revision 4.28 1999/02/28 19:01:50 kardel 6111 * improved debug out on sent Meinberg messages 6112 * 6113 * Revision 4.27 1999/02/28 18:05:55 kardel 6114 * no linux/ppsclock.h stuff 6115 * 6116 * Revision 4.26 1999/02/28 15:27:27 kardel 6117 * wharton clock integration 6118 * 6119 * Revision 4.25 1999/02/28 14:04:46 kardel 6120 * added missing double quotes to UTC information string 6121 * 6122 * Revision 4.24 1999/02/28 12:06:50 kardel 6123 * (parse_control): using gmprettydate instead of prettydate() 6124 * (mk_utcinfo): new function for formatting GPS derived UTC information 6125 * (gps16x_message): changed to use mk_utcinfo() 6126 * (trimbletsip_message): changed to use mk_utcinfo() 6127 * ignoring position information in unsynchronized mode 6128 * (parse_start): augument linux support for optional ASYNC_LOW_LATENCY 6129 * 6130 * Revision 4.23 1999/02/23 19:47:53 kardel 6131 * fixed #endifs 6132 * (stream_receive): fixed formats 6133 * 6134 * Revision 4.22 1999/02/22 06:21:02 kardel 6135 * use new autoconfig symbols 6136 * 6137 * Revision 4.21 1999/02/21 12:18:13 kardel 6138 * 4.91f reconcilation 6139 * 6140 * Revision 4.20 1999/02/21 10:53:36 kardel 6141 * initial Linux PPSkit version 6142 * 6143 * Revision 4.19 1999/02/07 09:10:45 kardel 6144 * clarify STREAMS mitigation rules in comment 6145 * 6146 * Revision 4.18 1998/12/20 23:45:34 kardel 6147 * fix types and warnings 6148 * 6149 * Revision 4.17 1998/11/15 21:24:51 kardel 6150 * cannot access mbg_ routines when CLOCK_MEINBERG 6151 * is not defined 6152 * 6153 * Revision 4.16 1998/11/15 20:28:17 kardel 6154 * Release 4.0.73e13 reconcilation 6155 * 6156 * Revision 4.15 1998/08/22 21:56:08 kardel 6157 * fixed IO handling for non-STREAM IO 6158 * 6159 * Revision 4.14 1998/08/16 19:00:48 kardel 6160 * (gps16x_message): reduced UTC parameter information (dropped A0,A1) 6161 * made uval a local variable (killed one of the last globals) 6162 * (sendetx): added logging of messages when in debug mode 6163 * (trimble_check): added periodic checks to facilitate re-initialization 6164 * (trimbletsip_init): made use of EOL character if in non-kernel operation 6165 * (trimbletsip_message): extended message interpretation 6166 * (getdbl): fixed data conversion 6167 * 6168 * Revision 4.13 1998/08/09 22:29:13 kardel 6169 * Trimble TSIP support 6170 * 6171 * Revision 4.12 1998/07/11 10:05:34 kardel 6172 * Release 4.0.73d reconcilation 6173 * 6174 * Revision 4.11 1998/06/14 21:09:42 kardel 6175 * Sun acc cleanup 6176 * 6177 * Revision 4.10 1998/06/13 12:36:45 kardel 6178 * signed/unsigned, name clashes 6179 * 6180 * Revision 4.9 1998/06/12 15:30:00 kardel 6181 * prototype fixes 6182 * 6183 * Revision 4.8 1998/06/12 11:19:42 kardel 6184 * added direct input processing routine for refclocks in 6185 * order to avaiod that single character io gobbles up all 6186 * receive buffers and drops input data. (Problem started 6187 * with fast machines so a character a buffer was possible 6188 * one of the few cases where faster machines break existing 6189 * allocation algorithms) 6190 * 6191 * Revision 4.7 1998/06/06 18:35:20 kardel 6192 * (parse_start): added BURST mode initialisation 6193 * 6194 * Revision 4.6 1998/05/27 06:12:46 kardel 6195 * RAWDCF_BASEDELAY default added 6196 * old comment removed 6197 * casts for ioctl() 6198 * 6199 * Revision 4.5 1998/05/25 22:05:09 kardel 6200 * RAWDCF_SETDTR option removed 6201 * clock type 14 attempts to set DTR for 6202 * power supply of RAWDCF receivers 6203 * 6204 * Revision 4.4 1998/05/24 16:20:47 kardel 6205 * updated comments referencing Meinberg clocks 6206 * added RAWDCF clock with DTR set option as type 14 6207 * 6208 * Revision 4.3 1998/05/24 10:48:33 kardel 6209 * calibrated CONRAD RAWDCF default fudge factor 6210 * 6211 * Revision 4.2 1998/05/24 09:59:35 kardel 6212 * corrected version information (ntpq support) 6213 * 6214 * Revision 4.1 1998/05/24 09:52:31 kardel 6215 * use fixed format only (new IO model) 6216 * output debug to stdout instead of msyslog() 6217 * don't include >"< in ASCII output in order not to confuse 6218 * ntpq parsing 6219 * 6220 * Revision 4.0 1998/04/10 19:52:11 kardel 6221 * Start 4.0 release version numbering 6222 * 6223 * Revision 1.2 1998/04/10 19:28:04 kardel 6224 * initial NTP VERSION 4 integration of PARSE with GPS166 binary support 6225 * derived from 3.105.1.2 from V3 tree 6226 * 6227 * Revision information 3.1 - 3.105 from log deleted 1998/04/10 kardel 6228 * 6229 */ 6230