1/* $NetBSD: refclock_oncore.c,v 1.17 2020/05/25 20:47:25 christos Exp $ */ 2 3/* 4 * ---------------------------------------------------------------------------- 5 * "THE BEER-WARE LICENSE" (Revision 42): 6 * <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you 7 * can do whatever you want with this stuff. If we meet some day, and you think 8 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 9 * ---------------------------------------------------------------------------- 10 * 11 * refclock_oncore.c 12 * 13 * Driver for some of the various the Motorola Oncore GPS receivers. 14 * should work with Basic, PVT6, VP, UT, UT+, GT, GT+, SL, M12, M12+T 15 * The receivers with TRAIM (VP, UT, UT+, M12+T), will be more accurate 16 * than the others. 17 * The receivers without position hold (GT, GT+) will be less accurate. 18 * 19 * Tested with: 20 * 21 * (UT) (VP) 22 * COPYRIGHT 1991-1997 MOTOROLA INC. COPYRIGHT 1991-1996 MOTOROLA INC. 23 * SFTW P/N # 98-P36848P SFTW P/N # 98-P36830P 24 * SOFTWARE VER # 2 SOFTWARE VER # 8 25 * SOFTWARE REV # 2 SOFTWARE REV # 8 26 * SOFTWARE DATE APR 24 1998 SOFTWARE DATE 06 Aug 1996 27 * MODEL # R1121N1114 MODEL # B4121P1155 28 * HWDR P/N # 1 HDWR P/N # _ 29 * SERIAL # R0010A SERIAL # SSG0226478 30 * MANUFACTUR DATE 6H07 MANUFACTUR DATE 7E02 31 * OPTIONS LIST IB 32 * 33 * (Basic) (M12) 34 * COPYRIGHT 1991-1994 MOTOROLA INC. COPYRIGHT 1991-2000 MOTOROLA INC. 35 * SFTW P/N # 98-P39949M SFTW P/N # 61-G10002A 36 * SOFTWARE VER # 5 SOFTWARE VER # 1 37 * SOFTWARE REV # 0 SOFTWARE REV # 3 38 * SOFTWARE DATE 20 JAN 1994 SOFTWARE DATE Mar 13 2000 39 * MODEL # A11121P116 MODEL # P143T12NR1 40 * HDWR P/N # _ HWDR P/N # 1 41 * SERIAL # SSG0049809 SERIAL # P003UD 42 * MANUFACTUR DATE 417AMA199 MANUFACTUR DATE 0C27 43 * OPTIONS LIST AB 44 * 45 * (M12+T) (M12+T later version) 46 * COPYRIGHT 1991-2002 MOTOROLA INC. COPYRIGHT 1991-2003 MOTOROLA INC. 47 * SFTW P/N # 61-G10268A SFTW P/N # 61-G10268A 48 * SOFTWARE VER # 2 SOFTWARE VER # 2 49 * SOFTWARE REV # 0 SOFTWARE REV # 1 50 * SOFTWARE DATE AUG 14 2002 SOFTWARE DATE APR 16 2003 51 * MODEL # P283T12T11 MODEL # P273T12T12 52 * HWDR P/N # 2 HWDR P/N # 2 53 * SERIAL # P04DC2 SERIAL # P05Z7Z 54 * MANUFACTUR DATE 2J17 MANUFACTUR DATE 3G15 55 * 56 * -------------------------------------------------------------------------- 57 * Reg Clemens (June 2009) 58 * BUG[1220] OK, big patch, but mostly done mechanically. Change direct calls to write 59 * to clockstats to a call to oncore_log, which now calls the old routine plus msyslog. 60 * Have to set the LOG_LEVELS of the calls for msyslog, and this was done by hand. New 61 * routine oncore_log. 62 * -------------------------------------------------------------------------- 63 * Reg Clemens (June 2009) 64 * BUG[1218] The comment on where the oncore driver gets its input file does not 65 * agree with the code. Change the comment. 66 * -------------------------------------------------------------------------- 67 * Reg Clemens (June 2009) 68 * change exit statements to return(0) in main program. I had assumed that if the 69 * PPS driver did not start for some reason, we shuould stop NTPD itelf. Others 70 * disagree. We now give an ERR log message and stop this driver. 71 * -------------------------------------------------------------------------- 72 * Reg Clemens (June 2009) 73 * A bytes available message for the input subsystem (Debug message). 74 * -------------------------------------------------------------------------- 75 * Reg Clemens (Nov 2008) 76 * This code adds a message for TRAIM messages. Users often worry about the 77 * driver not starting up, and it is often because of signal strength being low. 78 * Low signal strength will give TRAIM messages. 79 * -------------------------------------------------------------------------- 80 * Reg Clemens (Nov 2008) 81 * Add waiting on Almanac Message. 82 * -------------------------------------------------------------------------- 83 * Reg Clemens (Nov 2008) 84 * Add back in @@Bl code to do the @@Bj/@@Gj that is in later ONCOREs 85 * LEAP SECONDS: All of the ONCORE receivers, VP -> M12T have the @@Bj command 86 * that says 'Leap Pending'. As documented it only becomes true in the month 87 * before the leap second is to be applied, but in practice at least some of 88 * the receivers turn this indicator on as soon as the message is posted, which 89 * can be 6months early. As such, we use the Bj command to turn on the 90 * instance->pp->leap indicator but only run this test in December and June for 91 * updates on 1Jan and 1July. 92 * 93 * The @@Gj command exists in later ONCOREs, and it gives the exact date 94 * and size of the Leap Update. It can be emulated in the VP using the @@Bl 95 * command which reads the raw Satellite Broadcast Messages. 96 * We use these two commands to print informative messages in the clockstats 97 * file once per day as soon as the message appears on the satellites. 98 * -------------------------------------------------------------------------- 99 * Reg Clemens (Feb 2006) 100 * Fix some gcc4 compiler complaints 101 * Fix possible segfault in oncore_init_shmem 102 * change all (possible) fprintf(stderr, to record_clock_stats 103 * Apply patch from Russell J. Yount <rjy@cmu.edu> Fixed (new) MT12+T UTC not correct 104 * immediately after new Almanac Read. 105 * Apply patch for new PPS implementation by Rodolfo Giometti <giometti@linux.it> 106 * now code can use old Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de> or 107 * the new one. Compiles depending on timepps.h seen. 108 * -------------------------------------------------------------------------- 109 * Luis Batanero Guerrero <luisba@rao.es> (Dec 2005) Patch for leap seconds 110 * (the oncore driver was setting the wrong ntpd variable) 111 * -------------------------------------------------------------------------- 112 * Reg.Clemens (Mar 2004) 113 * Support for interfaces other than PPSAPI removed, for Solaris, SunOS, 114 * SCO, you now need to use one of the timepps.h files in the root dir. 115 * this driver will 'grab' it for you if you dont have one in /usr/include 116 * -------------------------------------------------------------------------- 117 * This code uses the two devices 118 * /dev/oncore.serial.n 119 * /dev/oncore.pps.n 120 * which may be linked to the same device. 121 * and can read initialization data from the file 122 * /etc/ntp.oncoreN, /etc/ntp.oncore.N, or /etc/ntp.oncore, where 123 * n or N are the unit number, viz 127.127.30.N. 124 * -------------------------------------------------------------------------- 125 * Reg.Clemens <reg@dwf.com> Sep98. 126 * Original code written for FreeBSD. 127 * With these mods it works on FreeBSD, SunOS, Solaris and Linux 128 * (SunOS 4.1.3 + ppsclock) 129 * (Solaris7 + MU4) 130 * (RedHat 5.1 2.0.35 + PPSKit, 2.1.126 + or later). 131 * 132 * Lat,Long,Ht, cable-delay, offset, and the ReceiverID (along with the 133 * state machine state) are printed to CLOCKSTATS if that file is enabled 134 * in /etc/ntp.conf. 135 * 136 * -------------------------------------------------------------------------- 137 * 138 * According to the ONCORE manual (TRM0003, Rev 3.2, June 1998, page 3.13) 139 * doing an average of 10000 valid 2D and 3D fixes is what the automatic 140 * site survey mode does. Looking at the output from the receiver 141 * it seems like it is only using 3D fixes. 142 * When we do it ourselves, take 10000 3D fixes. 143 */ 144 145#define POS_HOLD_AVERAGE 10000 /* nb, 10000s ~= 2h45m */ 146 147/* 148 * ONCORE_SHMEM_STATUS will create a mmap(2)'ed file named according to a 149 * "STATUS" line in the oncore config file, which contains the most recent 150 * copy of all types of messages we recognize. This file can be mmap(2)'ed 151 * by monitoring and statistics programs. 152 * 153 * See separate HTML documentation for this option. 154 */ 155 156#ifdef HAVE_CONFIG_H 157#include <config.h> 158#endif 159 160#if defined(REFCLOCK) && defined(CLOCK_ONCORE) 161 162#include "ntpd.h" 163#include "ntp_io.h" 164#include "ntp_unixtime.h" 165#include "ntp_refclock.h" 166#include "ntp_calendar.h" 167#include "ntp_calgps.h" 168#include "ntp_stdlib.h" 169 170#include <stdio.h> 171#include <stdarg.h> 172#include <ctype.h> 173#include <sys/stat.h> 174#ifdef ONCORE_SHMEM_STATUS 175# ifdef HAVE_SYS_MMAN_H 176# include <sys/mman.h> 177# ifndef MAP_FAILED 178# define MAP_FAILED ((u_char *) -1) 179# endif /* MAP_FAILED */ 180# endif /* HAVE_SYS_MMAN_H */ 181#endif /* ONCORE_SHMEM_STATUS */ 182 183#ifdef HAVE_PPSAPI 184# include "ppsapi_timepps.h" 185#endif 186 187struct Bl { 188 int dt_ls; 189 int dt_lsf; 190 int WN; 191 int DN; 192 int WN_lsf; 193 int DN_lsf; 194 int wn_flg; 195 int lsf_flg; 196 int Bl_day; 197} Bl; 198 199enum receive_state { 200 ONCORE_NO_IDEA, 201 ONCORE_CHECK_ID, 202 ONCORE_CHECK_CHAN, 203 ONCORE_HAVE_CHAN, 204 ONCORE_RESET_SENT, 205 ONCORE_TEST_SENT, 206 ONCORE_INIT, 207 ONCORE_ALMANAC, 208 ONCORE_RUN 209}; 210 211enum site_survey_state { 212 ONCORE_SS_UNKNOWN, 213 ONCORE_SS_TESTING, 214 ONCORE_SS_HW, 215 ONCORE_SS_SW, 216 ONCORE_SS_DONE 217}; 218 219enum antenna_state { 220 ONCORE_ANTENNA_UNKNOWN = -1, 221 ONCORE_ANTENNA_OK = 0, 222 ONCORE_ANTENNA_OC = 1, 223 ONCORE_ANTENNA_UC = 2, 224 ONCORE_ANTENNA_NV = 3 225}; 226 227/* Model Name, derived from the @@Cj message. 228 * Used to initialize some variables. 229 */ 230 231enum oncore_model { 232 ONCORE_BASIC, 233 ONCORE_PVT6, 234 ONCORE_VP, 235 ONCORE_UT, 236 ONCORE_UTPLUS, 237 ONCORE_GT, 238 ONCORE_GTPLUS, 239 ONCORE_SL, 240 ONCORE_M12, 241 ONCORE_UNKNOWN 242}; 243 244/* the bits that describe these properties are in the same place 245 * on the VP/UT, but have moved on the M12. As such we extract 246 * them, and use them from this struct. 247 * 248 */ 249 250struct RSM { 251 u_char posn0D; 252 u_char posn2D; 253 u_char posn3D; 254 u_char bad_almanac; 255 u_char bad_fix; 256}; 257 258/* It is possible to test the VP/UT each cycle (@@Ea or equivalent) to 259 * see what mode it is in. The bits on the M12 are multiplexed with 260 * other messages, so we have to 'keep' the last known mode here. 261 */ 262 263enum posn_mode { 264 MODE_UNKNOWN, 265 MODE_0D, 266 MODE_2D, 267 MODE_3D 268}; 269 270struct instance { 271 int unit; /* 127.127.30.unit */ 272 struct refclockproc *pp; 273 struct peer *peer; 274 275 int ttyfd; /* TTY file descriptor */ 276 int ppsfd; /* PPS file descriptor */ 277 int shmemfd; /* Status shm descriptor */ 278 pps_handle_t pps_h; 279 pps_params_t pps_p; 280 enum receive_state o_state; /* Receive state */ 281 enum posn_mode mode; /* 0D, 2D, 3D */ 282 enum site_survey_state site_survey; /* Site Survey state */ 283 enum antenna_state ant_state; /* antenna state */ 284 285 int Bj_day; 286 287 u_long delay; /* ns */ 288 long offset; /* ns */ 289 290 u_char *shmem; 291 char *shmem_fname; 292 u_int shmem_Cb; 293 u_int shmem_Ba; 294 u_int shmem_Ea; 295 u_int shmem_Ha; 296 u_char shmem_reset; 297 u_char shmem_Posn; 298 u_char shmem_bad_Ea; 299 u_char almanac_from_shmem; 300 301 double ss_lat; 302 double ss_long; 303 double ss_ht; 304 double dH; 305 int ss_count; 306 u_char posn_set; 307 308 enum oncore_model model; 309 u_int version; 310 u_int revision; 311 312 u_char chan; /* 6 for PVT6 or BASIC, 8 for UT/VP, 12 for m12, 0 if unknown */ 313 s_char traim; /* do we have traim? yes UT/VP, M12+T, no BASIC, GT, M12, -1 unknown, 0 no, +1 yes */ 314 /* the following 7 are all timing counters */ 315 u_char traim_delay; /* seconds counter, waiting for reply */ 316 u_char count; /* cycles thru Ea before starting */ 317 u_char count1; /* cycles thru Ea after SS_TESTING, waiting for SS_HW */ 318 u_char count2; /* cycles thru Ea after count, to check for @@Ea */ 319 u_char count3; /* cycles thru Ea checking for # channels */ 320 u_char count4; /* cycles thru leap after Gj to issue Bj */ 321 u_char count5; /* cycles thru get_timestamp waiting for valid UTC correction */ 322 u_char count5_set; /* only set count5 once */ 323 u_char counta; /* count for waiting on almanac message */ 324 u_char pollcnt; 325 u_char timeout; /* count to retry Cj after Fa self-test */ 326 u_char max_len; /* max length message seen by oncore_log, for debugging */ 327 u_char max_count; /* count for message statistics */ 328 329 struct RSM rsm; /* bits extracted from Receiver Status Msg in @@Ea */ 330 struct Bl Bl; /* Satellite Broadcast Data Message */ 331 u_char printed; 332 u_char polled; 333 u_long ev_serial; 334 unsigned Rcvptr; 335 u_char Rcvbuf[500]; 336 u_char BEHa[160]; /* Ba, Ea or Ha */ 337 u_char BEHn[80]; /* Bn , En , or Hn */ 338 u_char Cj[300]; 339 u_char Ag; /* Satellite mask angle */ 340 u_char saw_At; 341 u_char saw_Ay; 342 u_char saw_Az; 343 s_char saw_Bj; 344 s_char saw_Gj; 345 u_char have_dH; 346 u_char init_type; 347 s_char saw_tooth; 348 s_char chan_in; /* chan number from INPUT, will always use it */ 349 u_char chan_id; /* chan number determined from part number */ 350 u_char chan_ck; /* chan number determined by sending commands to hardware */ 351 s_char traim_in; /* TRAIM from INPUT, will always use ON/OFF specified */ 352 s_char traim_id; /* TRAIM determined from part number */ 353 u_char traim_ck; /* TRAIM determined by sending commands to hardware */ 354 u_char once; /* one pass code at top of BaEaHa */ 355 s_char assert; 356 u_char hardpps; 357 s_char pps_control; /* PPS control, M12 only */ 358 s_char pps_control_msg_seen; 359}; 360 361#define rcvbuf instance->Rcvbuf 362#define rcvptr instance->Rcvptr 363 364static int oncore_start (int, struct peer *); 365static void oncore_poll (int, struct peer *); 366static void oncore_shutdown (int, struct peer *); 367static void oncore_consume (struct instance *); 368static void oncore_read_config (struct instance *); 369static void oncore_receive (struct recvbuf *); 370static int oncore_ppsapi (struct instance *); 371static void oncore_get_timestamp (struct instance *, long, long); 372static void oncore_init_shmem (struct instance *); 373 374static void oncore_antenna_report (struct instance *, enum antenna_state); 375static void oncore_chan_test (struct instance *); 376static void oncore_check_almanac (struct instance *); 377static void oncore_check_antenna (struct instance *); 378static void oncore_check_leap_sec (struct instance *); 379static int oncore_checksum_ok (u_char *, int); 380static void oncore_compute_dH (struct instance *); 381static void oncore_load_almanac (struct instance *); 382static void oncore_log (struct instance *, int, const char *); 383static int oncore_log_f (struct instance *, int, const char *, ...) 384 NTP_SYSLOG(3, 4); 385static void oncore_print_Cb (struct instance *, u_char *); 386/* static void oncore_print_array (u_char *, int); */ 387static void oncore_print_posn (struct instance *); 388static void oncore_sendmsg (struct instance *, u_char *, size_t); 389static void oncore_set_posn (struct instance *); 390static void oncore_set_traim (struct instance *); 391static void oncore_shmem_get_3D (struct instance *); 392static void oncore_ss (struct instance *); 393static int oncore_wait_almanac (struct instance *); 394static void oncore_feed_clockproc (struct instance *); 395 396static void oncore_msg_any (struct instance *, u_char *, size_t, int); 397static void oncore_msg_Adef (struct instance *, u_char *, size_t); 398static void oncore_msg_Ag (struct instance *, u_char *, size_t); 399static void oncore_msg_As (struct instance *, u_char *, size_t); 400static void oncore_msg_At (struct instance *, u_char *, size_t); 401static void oncore_msg_Ay (struct instance *, u_char *, size_t); 402static void oncore_msg_Az (struct instance *, u_char *, size_t); 403static void oncore_msg_BaEaHa (struct instance *, u_char *, size_t); 404static void oncore_msg_Bd (struct instance *, u_char *, size_t); 405static void oncore_msg_Bj (struct instance *, u_char *, size_t); 406static void oncore_msg_Bl (struct instance *, u_char *, size_t); 407static void oncore_msg_BnEnHn (struct instance *, u_char *, size_t); 408static void oncore_msg_CaFaIa (struct instance *, u_char *, size_t); 409static void oncore_msg_Cb (struct instance *, u_char *, size_t); 410static void oncore_msg_Cf (struct instance *, u_char *, size_t); 411static void oncore_msg_Cj (struct instance *, u_char *, size_t); 412static void oncore_msg_Cj_id (struct instance *, u_char *, size_t); 413static void oncore_msg_Cj_init (struct instance *, u_char *, size_t); 414static void oncore_msg_Ga (struct instance *, u_char *, size_t); 415static void oncore_msg_Gb (struct instance *, u_char *, size_t); 416static void oncore_msg_Gc (struct instance *, u_char *, size_t); 417static void oncore_msg_Gj (struct instance *, u_char *, size_t); 418static void oncore_msg_Sz (struct instance *, u_char *, size_t); 419 420struct refclock refclock_oncore = { 421 oncore_start, /* start up driver */ 422 oncore_shutdown, /* shut down driver */ 423 oncore_poll, /* transmit poll message */ 424 noentry, /* not used */ 425 noentry, /* not used */ 426 noentry, /* not used */ 427 NOFLAGS /* not used */ 428}; 429 430/* 431 * Understanding the next bit here is not easy unless you have a manual 432 * for the the various Oncore Models. 433 */ 434 435static struct msg_desc { 436 const char flag[3]; 437 const int len; 438 void (*handler) (struct instance *, u_char *, size_t); 439 const char *fmt; 440 int shmem; 441} oncore_messages[] = { 442 /* Ea and En first since they're most common */ 443 { "Ea", 76, oncore_msg_BaEaHa, "mdyyhmsffffaaaaoooohhhhmmmmvvhhddtntimsdimsdimsdimsdimsdimsdimsdimsdsC", 0 }, 444 { "Ba", 68, oncore_msg_BaEaHa, "mdyyhmsffffaaaaoooohhhhmmmmvvhhddtntimsdimsdimsdimsdimsdimsdsC", 0 }, 445 { "Ha", 154, oncore_msg_BaEaHa, "mdyyhmsffffaaaaoooohhhhmmmmaaaaoooohhhhmmmmVVvvhhddntimsiddimsiddimsiddimsiddimsiddimsiddimsiddimsiddimsiddimsiddimsiddimsiddssrrccooooTTushmvvvvvvC", 0 }, 446 { "Bn", 59, oncore_msg_BnEnHn, "otaapxxxxxxxxxxpysreensffffsffffsffffsffffsffffsffffC", 0 }, 447 { "En", 69, oncore_msg_BnEnHn, "otaapxxxxxxxxxxpysreensffffsffffsffffsffffsffffsffffsffffsffffC", 0 }, 448 { "Hn", 78, oncore_msg_BnEnHn, "", 0 }, 449 { "Ab", 10, 0, "", 0 }, 450 { "Ac", 11, 0, "", 0 }, 451 { "Ad", 11, oncore_msg_Adef, "", 0 }, 452 { "Ae", 11, oncore_msg_Adef, "", 0 }, 453 { "Af", 15, oncore_msg_Adef, "", 0 }, 454 { "Ag", 8, oncore_msg_Ag, "", 0 }, /* Satellite mask angle */ 455 { "As", 20, oncore_msg_As, "", 0 }, 456 { "At", 8, oncore_msg_At, "", 0 }, 457 { "Au", 12, 0, "", 0 }, 458 { "Av", 8, 0, "", 0 }, 459 { "Aw", 8, 0, "", 0 }, 460 { "Ay", 11, oncore_msg_Ay, "", 0 }, 461 { "Az", 11, oncore_msg_Az, "", 0 }, 462 { "AB", 8, 0, "", 0 }, 463 { "Bb", 92, 0, "", 0 }, 464 { "Bd", 23, oncore_msg_Bd, "", 0 }, 465 { "Bj", 8, oncore_msg_Bj, "", 0 }, 466 { "Bl", 41, oncore_msg_Bl, "", 0 }, 467 { "Ca", 9, oncore_msg_CaFaIa, "", 0 }, 468 { "Cb", 33, oncore_msg_Cb, "", 0 }, 469 { "Cf", 7, oncore_msg_Cf, "", 0 }, 470 { "Cg", 8, 0, "", 0 }, 471 { "Ch", 9, 0, "", 0 }, 472 { "Cj", 294, oncore_msg_Cj, "", 0 }, 473 { "Ek", 71, 0, "", 0 }, 474 { "Fa", 9, oncore_msg_CaFaIa, "", 0 }, 475 { "Ga", 20, oncore_msg_Ga, "", 0 }, 476 { "Gb", 17, oncore_msg_Gb, "", 0 }, 477 { "Gc", 8, oncore_msg_Gc, "", 0 }, 478 { "Gd", 8, 0, "", 0 }, 479 { "Ge", 8, 0, "", 0 }, 480 { "Gj", 21, oncore_msg_Gj, "", 0 }, 481 { "Ia", 10, oncore_msg_CaFaIa, "", 0 }, 482 { "Sz", 8, oncore_msg_Sz, "", 0 }, 483 { {0}, 7, 0, "", 0 } 484}; 485 486 487static u_char oncore_cmd_Aa[] = { 'A', 'a', 0, 0, 0 }; /* 6/8 Time of Day */ 488static u_char oncore_cmd_Ab[] = { 'A', 'b', 0, 0, 0 }; /* 6/8 GMT Correction */ 489static u_char oncore_cmd_AB[] = { 'A', 'B', 4 }; /* VP Application Type: Static */ 490static u_char oncore_cmd_Ac[] = { 'A', 'c', 0, 0, 0, 0 }; /* 6/8 Date */ 491static u_char oncore_cmd_Ad[] = { 'A', 'd', 0,0,0,0 }; /* 6/8 Latitude */ 492static u_char oncore_cmd_Ae[] = { 'A', 'e', 0,0,0,0 }; /* 6/8 Longitude */ 493static u_char oncore_cmd_Af[] = { 'A', 'f', 0,0,0,0, 0 }; /* 6/8 Height */ 494static u_char oncore_cmd_Ag[] = { 'A', 'g', 0 }; /* 6/8/12 Satellite Mask Angle */ 495static u_char oncore_cmd_Agx[] = { 'A', 'g', 0xff }; /* 6/8/12 Satellite Mask Angle: read */ 496static u_char oncore_cmd_As[] = { 'A', 's', 0,0,0,0, 0,0,0,0, 0,0,0,0, 0 }; /* 6/8/12 Posn Hold Parameters */ 497static u_char oncore_cmd_Asx[] = { 'A', 's', 0x7f,0xff,0xff,0xff, /* 6/8/12 Posn Hold Readback */ 498 0x7f,0xff,0xff,0xff, /* on UT+ this doesnt work with 0xff */ 499 0x7f,0xff,0xff,0xff, 0xff }; /* but does work with 0x7f (sigh). */ 500static u_char oncore_cmd_At0[] = { 'A', 't', 0 }; /* 6/8 Posn Hold: off */ 501static u_char oncore_cmd_At1[] = { 'A', 't', 1 }; /* 6/8 Posn Hold: on */ 502static u_char oncore_cmd_At2[] = { 'A', 't', 2 }; /* 6/8 Posn Hold: Start Site Survey */ 503static u_char oncore_cmd_Atx[] = { 'A', 't', 0xff }; /* 6/8 Posn Hold: Read Back */ 504static u_char oncore_cmd_Au[] = { 'A', 'u', 0,0,0,0, 0 }; /* GT/M12 Altitude Hold Ht. */ 505static u_char oncore_cmd_Av0[] = { 'A', 'v', 0 }; /* VP/GT Altitude Hold: off */ 506static u_char oncore_cmd_Av1[] = { 'A', 'v', 1 }; /* VP/GT Altitude Hold: on */ 507static u_char oncore_cmd_Aw[] = { 'A', 'w', 1 }; /* 6/8/12 UTC/GPS time selection */ 508static u_char oncore_cmd_Ay[] = { 'A', 'y', 0, 0, 0, 0 }; /* Timing 1PPS time offset: set */ 509static u_char oncore_cmd_Ayx[] = { 'A', 'y', 0xff, 0xff, 0xff, 0xff }; /* Timing 1PPS time offset: Read */ 510static u_char oncore_cmd_Az[] = { 'A', 'z', 0, 0, 0, 0 }; /* 6/8UT/12 1PPS Cable Delay: set */ 511static u_char oncore_cmd_Azx[] = { 'A', 'z', 0xff, 0xff, 0xff, 0xff }; /* 6/8UT/12 1PPS Cable Delay: Read */ 512static u_char oncore_cmd_Ba0[] = { 'B', 'a', 0 }; /* 6 Position/Data/Status: off */ 513static u_char oncore_cmd_Ba[] = { 'B', 'a', 1 }; /* 6 Position/Data/Status: on */ 514static u_char oncore_cmd_Bb[] = { 'B', 'b', 1 }; /* 6/8/12 Visible Satellites */ 515static u_char oncore_cmd_Bd[] = { 'B', 'd', 1 }; /* 6/8/12? Almanac Status Msg. */ 516static u_char oncore_cmd_Be[] = { 'B', 'e', 1 }; /* 6/8/12 Request Almanac Data */ 517static u_char oncore_cmd_Bj[] = { 'B', 'j', 0 }; /* 6/8 Leap Second Pending */ 518static u_char oncore_cmd_Bl[] = { 'B', 'l', 1 }; /* VP Satellite Broadcast Data Msg */ 519static u_char oncore_cmd_Bn0[] = { 'B', 'n', 0, 1, 0,10, 2, 0,0,0, 0,0,0,0,0,0,0 }; /* 6 TRAIM setup/status: msg off, traim on */ 520static u_char oncore_cmd_Bn[] = { 'B', 'n', 1, 1, 0,10, 2, 0,0,0, 0,0,0,0,0,0,0 }; /* 6 TRAIM setup/status: msg on, traim on */ 521static u_char oncore_cmd_Bnx[] = { 'B', 'n', 0, 0, 0,10, 2, 0,0,0, 0,0,0,0,0,0,0 }; /* 6 TRAIM setup/status: msg off, traim off */ 522static u_char oncore_cmd_Ca[] = { 'C', 'a' }; /* 6 Self Test */ 523static u_char oncore_cmd_Cf[] = { 'C', 'f' }; /* 6/8/12 Set to Defaults */ 524static u_char oncore_cmd_Cg[] = { 'C', 'g', 1 }; /* VP Posn Fix/Idle Mode */ 525static u_char oncore_cmd_Cj[] = { 'C', 'j' }; /* 6/8/12 Receiver ID */ 526static u_char oncore_cmd_Ea0[] = { 'E', 'a', 0 }; /* 8 Position/Data/Status: off */ 527static u_char oncore_cmd_Ea[] = { 'E', 'a', 1 }; /* 8 Position/Data/Status: on */ 528static u_char oncore_cmd_Ek[] = { 'E', 'k', 0 }; /* just turn off */ /* 8 Posn/Status/Data - extension */ 529static u_char oncore_cmd_En0[] = { 'E', 'n', 0, 1, 0,10, 2, 0,0,0, 0,0,0,0,0,0,0 }; /* 8/GT TRAIM setup/status: msg off, traim on */ 530static u_char oncore_cmd_En[] = { 'E', 'n', 1, 1, 0,10, 2, 0,0,0, 0,0,0,0,0,0,0 }; /* 8/GT TRAIM setup/status: msg on, traim on */ 531static u_char oncore_cmd_Enx[] = { 'E', 'n', 0, 0, 0,10, 2, 0,0,0, 0,0,0,0,0,0,0 }; /* 8/GT TRAIM setup/status: msg off, traim off */ 532static u_char oncore_cmd_Fa[] = { 'F', 'a' }; /* 8 Self Test */ 533static u_char oncore_cmd_Ga[] = { 'G', 'a', 0,0,0,0, 0,0,0,0, 0,0,0,0, 0 }; /* 12 Position Set */ 534static u_char oncore_cmd_Gax[] = { 'G', 'a', 0xff, 0xff, 0xff, 0xff, /* 12 Position Set: Read */ 535 0xff, 0xff, 0xff, 0xff, /* */ 536 0xff, 0xff, 0xff, 0xff, 0xff }; /* */ 537static u_char oncore_cmd_Gb[] = { 'G', 'b', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; /* 12 set Date/Time */ 538static u_char oncore_cmd_Gc[] = { 'G', 'c', 0 }; /* 12 PPS Control: Off, On, 1+satellite,TRAIM */ 539static u_char oncore_cmd_Gd0[] = { 'G', 'd', 0 }; /* 12 Position Control: 3D (no hold) */ 540static u_char oncore_cmd_Gd1[] = { 'G', 'd', 1 }; /* 12 Position Control: 0D (3D hold) */ 541static u_char oncore_cmd_Gd2[] = { 'G', 'd', 2 }; /* 12 Position Control: 2D (Alt Hold) */ 542static u_char oncore_cmd_Gd3[] = { 'G', 'd', 3 }; /* 12 Position Coltrol: Start Site Survey */ 543static u_char oncore_cmd_Ge0[] = { 'G', 'e', 0 }; /* M12+T TRAIM: off */ 544static u_char oncore_cmd_Ge[] = { 'G', 'e', 1 }; /* M12+T TRAIM: on */ 545static u_char oncore_cmd_Gj[] = { 'G', 'j' }; /* 8?/12 Leap Second Pending */ 546static u_char oncore_cmd_Ha0[] = { 'H', 'a', 0 }; /* 12 Position/Data/Status: off */ 547static u_char oncore_cmd_Ha[] = { 'H', 'a', 1 }; /* 12 Position/Data/Status: on */ 548static u_char oncore_cmd_Hn0[] = { 'H', 'n', 0 }; /* 12 TRAIM Status: off */ 549static u_char oncore_cmd_Hn[] = { 'H', 'n', 1 }; /* 12 TRAIM Status: on */ 550static u_char oncore_cmd_Ia[] = { 'I', 'a' }; /* 12 Self Test */ 551 552/* it appears that as of 1997/1998, the UT had As,At, but not Au,Av 553 * the GT had Au,Av, but not As,At 554 * This was as of v2.0 of both firmware sets. possibly 1.3 for UT. 555 * Bj in UT at v1.3 556 * dont see Bd in UT/GT thru 1999 557 * Gj in UT as of 3.0, 1999 , Bj as of 1.3 558 */ 559 560#define DEVICE1 "/dev/oncore.serial.%d" /* name of serial device */ 561#define DEVICE2 "/dev/oncore.pps.%d" /* name of pps device */ 562 563#define SPEED B9600 /* Oncore Binary speed (9600 bps) */ 564 565/* 566 * Assemble and disassemble 32bit signed quantities from a buffer. 567 * 568 */ 569 570 /* to buffer, int w, u_char *buf */ 571#define w32_buf(buf,w) { u_int i_tmp; \ 572 i_tmp = (w<0) ? (~(-w)+1) : (w); \ 573 (buf)[0] = (i_tmp >> 24) & 0xff; \ 574 (buf)[1] = (i_tmp >> 16) & 0xff; \ 575 (buf)[2] = (i_tmp >> 8) & 0xff; \ 576 (buf)[3] = (i_tmp ) & 0xff; \ 577 } 578 579#define w32(buf) (((buf)[0]&0xff) << 24 | \ 580 ((buf)[1]&0xff) << 16 | \ 581 ((buf)[2]&0xff) << 8 | \ 582 ((buf)[3]&0xff) ) 583 584 /* from buffer, char *buf, result to an int */ 585#define buf_w32(buf) (((buf)[0]&0200) ? (-(~w32(buf)+1)) : w32(buf)) 586 587 588/* 589 * oncore_start - initialize data for processing 590 */ 591 592static int 593oncore_start( 594 int unit, 595 struct peer *peer 596 ) 597{ 598#define STRING_LEN 32 599 register struct instance *instance; 600 struct refclockproc *pp; 601 int fd1, fd2; 602 char device1[STRING_LEN], device2[STRING_LEN]; 603#ifndef SYS_WINNT 604 struct stat stat1, stat2; 605#endif 606 607 /* create instance structure for this unit */ 608 609 instance = emalloc(sizeof(*instance)); 610 memset(instance, 0, sizeof(*instance)); 611 612 /* initialize miscellaneous variables */ 613 614 pp = peer->procptr; 615 instance->pp = pp; 616 instance->unit = unit; 617 instance->peer = peer; 618 instance->assert = 1; 619 instance->once = 1; 620 621 instance->Bj_day = -1; 622 instance->traim = -1; 623 instance->traim_in = -1; 624 instance->chan_in = -1; 625 instance->pps_control = -1; /* PPS control, M12 only */ 626 instance->pps_control_msg_seen = -1; /* Have seen response to Gc msg */ 627 instance->model = ONCORE_UNKNOWN; 628 instance->mode = MODE_UNKNOWN; 629 instance->site_survey = ONCORE_SS_UNKNOWN; 630 instance->Ag = 0xff; /* Satellite mask angle, unset by user */ 631 instance->ant_state = ONCORE_ANTENNA_UNKNOWN; 632 633 peer->flags &= ~FLAG_PPS; /* PPS not active yet */ 634 peer->precision = -26; 635 peer->minpoll = 4; 636 peer->maxpoll = 4; 637 pp->clockdesc = "Motorola Oncore GPS Receiver"; 638 memcpy((char *)&pp->refid, "GPS\0", (size_t) 4); 639 640 oncore_log(instance, LOG_NOTICE, "ONCORE DRIVER -- CONFIGURING"); 641 instance->o_state = ONCORE_NO_IDEA; 642 oncore_log(instance, LOG_NOTICE, "state = ONCORE_NO_IDEA"); 643 644 /* Now open files. 645 * This is a bit complicated, a we dont want to open the same file twice 646 * (its a problem on some OS), and device2 may not exist for the new PPS 647 */ 648 649 (void)snprintf(device1, sizeof(device1), DEVICE1, unit); 650 (void)snprintf(device2, sizeof(device2), DEVICE2, unit); 651 652 /* OPEN DEVICES */ 653 /* opening different devices for fd1 and fd2 presents no problems */ 654 /* opening the SAME device twice, seems to be OS dependent. 655 (a) on Linux (no streams) no problem 656 (b) on SunOS (and possibly Solaris, untested), (streams) 657 never see the line discipline. 658 Since things ALWAYS work if we only open the device once, we check 659 to see if the two devices are in fact the same, then proceed to 660 do one open or two. 661 662 For use with linuxPPS we assume that the N_TTY file has been opened 663 and that the line discipline has been changed to N_PPS by another 664 program (say ppsldisc) so that the two files expected by the oncore 665 driver can be opened. 666 667 Note that the linuxPPS N_PPS file is just like a N_TTY, so we can do 668 the stat below without error even though the file has already had its 669 line discipline changed by another process. 670 671 The Windows port of ntpd arranges to return duplicate handles for 672 multiple opens of the same serial device, and doesn't have inodes 673 for serial handles, so we just open both on Windows. 674 */ 675#ifndef SYS_WINNT 676 if (stat(device1, &stat1)) { 677 oncore_log_f(instance, LOG_ERR, "Can't stat fd1 (%s)", 678 device1); 679 return(0); /* exit, no file, can't start driver */ 680 } 681 682 if (stat(device2, &stat2)) { 683 stat2.st_dev = stat2.st_ino = -2; 684 oncore_log_f(instance, LOG_ERR, "Can't stat fd2 (%s) %d %m", 685 device2, errno); 686 } 687#endif /* !SYS_WINNT */ 688 689 fd1 = refclock_open(device1, SPEED, LDISC_RAW); 690 if (fd1 <= 0) { 691 oncore_log_f(instance, LOG_ERR, "Can't open fd1 (%s)", 692 device1); 693 return(0); /* exit, can't open file, can't start driver */ 694 } 695 696 /* for LINUX the PPS device is the result of a line discipline. 697 It seems simplest to let an external program create the appropriate 698 /dev/pps<n> file, and only check (carefully) for its existance here 699 */ 700 701#ifndef SYS_WINNT 702 if ((stat1.st_dev == stat2.st_dev) && (stat1.st_ino == stat2.st_ino)) /* same device here */ 703 fd2 = fd1; 704 else 705#endif /* !SYS_WINNT */ 706 { /* different devices here */ 707 if ((fd2=tty_open(device2, O_RDWR, 0777)) < 0) { 708 oncore_log_f(instance, LOG_ERR, 709 "Can't open fd2 (%s)", device2); 710 return(0); /* exit, can't open PPS file, can't start driver */ 711 } 712 } 713 714 /* open ppsapi source */ 715 716 if (time_pps_create(fd2, &instance->pps_h) < 0) { 717 oncore_log(instance, LOG_ERR, "exit, PPSAPI not found in kernel"); 718 return(0); /* exit, don't find PPSAPI in kernel */ 719 } 720 721 /* continue initialization */ 722 723 instance->ttyfd = fd1; 724 instance->ppsfd = fd2; 725 726 /* go read any input data in /etc/ntp.oncoreX or /etc/ntp/oncore.X */ 727 728 oncore_read_config(instance); 729 730 if (!oncore_ppsapi(instance)) 731 return(0); 732 733 pp->io.clock_recv = oncore_receive; 734 pp->io.srcclock = peer; 735 pp->io.datalen = 0; 736 pp->io.fd = fd1; 737 if (!io_addclock(&pp->io)) { 738 oncore_log(instance, LOG_ERR, "can't do io_addclock"); 739 close(fd1); 740 pp->io.fd = -1; 741 free(instance); 742 return (0); 743 } 744 pp->unitptr = instance; 745 746#ifdef ONCORE_SHMEM_STATUS 747 /* 748 * Before starting ONCORE, lets setup SHMEM 749 * This will include merging an old SHMEM into the new one if 750 * an old one is found. 751 */ 752 753 oncore_init_shmem(instance); 754#endif 755 756 /* 757 * This will return the Model of the Oncore receiver. 758 * and start the Initialization loop in oncore_msg_Cj. 759 */ 760 761 instance->o_state = ONCORE_CHECK_ID; 762 oncore_log(instance, LOG_NOTICE, "state = ONCORE_CHECK_ID"); 763 764 instance->timeout = 4; 765 oncore_sendmsg(instance, oncore_cmd_Cg, sizeof(oncore_cmd_Cg)); /* Set Posn Fix mode (not Idle (VP)) */ 766 oncore_sendmsg(instance, oncore_cmd_Cj, sizeof(oncore_cmd_Cj)); 767 768 instance->pollcnt = 2; 769 return (1); 770} 771 772 773/* 774 * oncore_shutdown - shut down the clock 775 */ 776 777static void 778oncore_shutdown( 779 int unit, 780 struct peer *peer 781 ) 782{ 783 register struct instance *instance; 784 struct refclockproc *pp; 785 786 pp = peer->procptr; 787 instance = pp->unitptr; 788 789 if (pp->io.fd != -1) 790 io_closeclock(&pp->io); 791 792 if (instance != NULL) { 793 time_pps_destroy (instance->pps_h); 794 795 close(instance->ttyfd); 796 797 if ((instance->ppsfd != -1) && (instance->ppsfd != instance->ttyfd)) 798 close(instance->ppsfd); 799 800 if (instance->shmemfd) 801 close(instance->shmemfd); 802 803 free(instance); 804 } 805} 806 807 808 809/* 810 * oncore_poll - called by the transmit procedure 811 */ 812 813static void 814oncore_poll( 815 int unit, 816 struct peer *peer 817 ) 818{ 819 struct instance *instance; 820 821 instance = peer->procptr->unitptr; 822 if (instance->timeout) { 823 instance->timeout--; 824 if (instance->timeout == 0) { 825 oncore_log(instance, LOG_ERR, 826 "Oncore: No response from @@Cj, shutting down driver"); 827 oncore_shutdown(unit, peer); 828 } else { 829 oncore_sendmsg(instance, oncore_cmd_Cj, sizeof(oncore_cmd_Cj)); 830 oncore_log(instance, LOG_WARNING, "Oncore: Resend @@Cj"); 831 } 832 return; 833 } 834 835 if (!instance->pollcnt) 836 refclock_report(peer, CEVNT_TIMEOUT); 837 else 838 instance->pollcnt--; 839 peer->procptr->polls++; 840 instance->polled = 1; 841} 842 843 844 845/* 846 * Initialize PPSAPI 847 */ 848 849static int 850oncore_ppsapi( 851 struct instance *instance 852 ) 853{ 854 int cap, mode, mode1; 855 const char *cp; 856 857 if (time_pps_getcap(instance->pps_h, &cap) < 0) { 858 oncore_log_f(instance, LOG_ERR, "time_pps_getcap failed: %m"); 859 return (0); 860 } 861 862 if (time_pps_getparams(instance->pps_h, &instance->pps_p) < 0) { 863 oncore_log_f(instance, LOG_ERR, "time_pps_getparams failed: %m"); 864 return (0); 865 } 866 867 /* nb. only turn things on, if someone else has turned something 868 * on before we get here, leave it alone! 869 */ 870 871 if (instance->assert) { 872 cp = "Assert"; 873 mode = PPS_CAPTUREASSERT; 874 mode1 = PPS_OFFSETASSERT; 875 } else { 876 cp = "Clear"; 877 mode = PPS_CAPTURECLEAR; 878 mode1 = PPS_OFFSETCLEAR; 879 } 880 oncore_log_f(instance, LOG_INFO, "Initializing timing to %s.", 881 cp); 882 883 if (!(mode & cap)) { 884 oncore_log_f(instance, LOG_ERR, 885 "Can't set timing to %s, exiting...", cp); 886 return(0); 887 } 888 889 if (!(mode1 & cap)) { 890 oncore_log_f(instance, LOG_NOTICE, 891 "Can't set %s, this will increase jitter.", 892 cp); 893 mode1 = 0; 894 } 895 896 /* only set what is legal */ 897 898 instance->pps_p.mode = (mode | mode1 | PPS_TSFMT_TSPEC) & cap; 899 900 if (time_pps_setparams(instance->pps_h, &instance->pps_p) < 0) { 901 oncore_log_f(instance, LOG_ERR, "ONCORE: time_pps_setparams fails %m"); 902 return(0); /* exit, can't do time_pps_setparans on PPS file */ 903 } 904 905 /* If HARDPPS is on, we tell kernel */ 906 907 if (instance->hardpps) { 908 int i; 909 910 oncore_log(instance, LOG_INFO, "HARDPPS Set."); 911 912 if (instance->assert) 913 i = PPS_CAPTUREASSERT; 914 else 915 i = PPS_CAPTURECLEAR; 916 917 /* we know that 'i' is legal from above */ 918 919 if (time_pps_kcbind(instance->pps_h, PPS_KC_HARDPPS, i, 920 PPS_TSFMT_TSPEC) < 0) { 921 oncore_log_f(instance, LOG_ERR, "time_pps_kcbind failed: %m"); 922 oncore_log(instance, LOG_ERR, "HARDPPS failed, abort..."); 923 return (0); 924 } 925 926 hardpps_enable = 1; 927 } 928 return(1); 929} 930 931 932 933#ifdef ONCORE_SHMEM_STATUS 934static void 935oncore_init_shmem( 936 struct instance *instance 937 ) 938{ 939 int l, fd; 940 u_char *cp, *cp1, *buf, *shmem_old; 941 struct msg_desc *mp; 942 struct stat sbuf; 943 size_t i, n, n1, shmem_length, shmem_old_size; 944 945 /* 946 * The first thing we do is see if there is an instance->shmem_fname file (still) 947 * out there from a previous run. If so, we copy it in and use it to initialize 948 * shmem (so we won't lose our almanac if we need it). 949 */ 950 951 shmem_old = 0; 952 shmem_old_size = 0; 953 if ((fd = open(instance->shmem_fname, O_RDONLY)) < 0) 954 oncore_log(instance, LOG_WARNING, "ONCORE: Can't open SHMEM file"); 955 else { 956 fstat(fd, &sbuf); 957 shmem_old_size = sbuf.st_size; 958 if (shmem_old_size != 0) { 959 shmem_old = emalloc((unsigned) sbuf.st_size); 960 read(fd, shmem_old, shmem_old_size); 961 } 962 close(fd); 963 } 964 965 /* OK, we now create the NEW SHMEM. */ 966 967 if ((instance->shmemfd = open(instance->shmem_fname, O_RDWR|O_CREAT|O_TRUNC, 0644)) < 0) { 968 oncore_log(instance, LOG_WARNING, "ONCORE: Can't open shmem"); 969 if (shmem_old) 970 free(shmem_old); 971 972 return; 973 } 974 975 /* see how big it needs to be */ 976 977 n = 1; 978 for (mp=oncore_messages; mp->flag[0]; mp++) { 979 mp->shmem = n; 980 /* Allocate space for multiplexed almanac, and 0D/2D/3D @@Ea records */ 981 if (!strcmp(mp->flag, "Cb")) { 982 instance->shmem_Cb = n; 983 n += (mp->len + 3) * 34; 984 } 985 if (!strcmp(mp->flag, "Ba")) { 986 instance->shmem_Ba = n; 987 n += (mp->len + 3) * 3; 988 } 989 if (!strcmp(mp->flag, "Ea")) { 990 instance->shmem_Ea = n; 991 n += (mp->len + 3) * 3; 992 } 993 if (!strcmp(mp->flag, "Ha")) { 994 instance->shmem_Ha = n; 995 n += (mp->len + 3) * 3; 996 } 997 n += (mp->len + 3); 998 } 999 shmem_length = n + 2; 1000 1001 buf = emalloc(shmem_length); 1002 memset(buf, 0, shmem_length); 1003 1004 /* next build the new SHMEM buffer in memory */ 1005 1006 for (mp=oncore_messages; mp->flag[0]; mp++) { 1007 l = mp->shmem; 1008 buf[l + 0] = mp->len >> 8; 1009 buf[l + 1] = mp->len & 0xff; 1010 buf[l + 2] = 0; 1011 buf[l + 3] = '@'; 1012 buf[l + 4] = '@'; 1013 buf[l + 5] = mp->flag[0]; 1014 buf[l + 6] = mp->flag[1]; 1015 if (!strcmp(mp->flag, "Cb") || !strcmp(mp->flag, "Ba") || !strcmp(mp->flag, "Ea") || !strcmp(mp->flag, "Ha")) { 1016 if (!strcmp(mp->flag, "Cb")) 1017 n = 35; 1018 else 1019 n = 4; 1020 for (i=1; i<n; i++) { 1021 buf[l + i * (mp->len+3) + 0] = mp->len >> 8; 1022 buf[l + i * (mp->len+3) + 1] = mp->len & 0xff; 1023 buf[l + i * (mp->len+3) + 2] = 0; 1024 buf[l + i * (mp->len+3) + 3] = '@'; 1025 buf[l + i * (mp->len+3) + 4] = '@'; 1026 buf[l + i * (mp->len+3) + 5] = mp->flag[0]; 1027 buf[l + i * (mp->len+3) + 6] = mp->flag[1]; 1028 } 1029 } 1030 } 1031 1032 /* we now walk thru the two buffers (shmem_old and buf, soon to become shmem) 1033 * copying the data in shmem_old to buf. 1034 * When we are done we write it out and free both buffers. 1035 * If the structure sizes dont agree, I will not copy. 1036 * This could be due to an addition/deletion or a problem with the disk file. 1037 */ 1038 1039 if (shmem_old) { 1040 if (shmem_old_size == shmem_length) { 1041 for (cp=buf+4, cp1=shmem_old+4; (n = 256*(*(cp-3)) + *(cp-2)); cp+=(n+3), cp1+=(n+3)) { 1042 n1 = 256*(*(cp1-3)) + *(cp1-2); 1043 if (n == 0 || n1 != n || strncmp((char *) cp, (char *) cp1, 4)) 1044 break; 1045 1046 memcpy(cp, cp1, (size_t) n); 1047 } 1048 } 1049 free(shmem_old); 1050 } 1051 1052 i = write(instance->shmemfd, buf, shmem_length); 1053 free(buf); 1054 1055 if (i != shmem_length) { 1056 oncore_log(instance, LOG_ERR, "ONCORE: error writing shmem"); 1057 close(instance->shmemfd); 1058 return; 1059 } 1060 1061 instance->shmem = (u_char *) mmap(0, shmem_length, 1062 PROT_READ | PROT_WRITE, 1063#ifdef MAP_HASSEMAPHORE 1064 MAP_HASSEMAPHORE | 1065#endif 1066 MAP_SHARED, instance->shmemfd, (off_t)0); 1067 1068 if (instance->shmem == (u_char *)MAP_FAILED) { 1069 instance->shmem = 0; 1070 close(instance->shmemfd); 1071 return; 1072 } 1073 1074 oncore_log_f(instance, LOG_NOTICE, 1075 "SHMEM (size = %ld) is CONFIGURED and available as %s", 1076 (u_long) shmem_length, instance->shmem_fname); 1077} 1078#endif /* ONCORE_SHMEM_STATUS */ 1079 1080 1081 1082/* 1083 * Read Input file if it exists. 1084 */ 1085 1086static void 1087oncore_read_config( 1088 struct instance *instance 1089 ) 1090{ 1091/* 1092 * First we try to open the configuration file 1093 * /etc/ntp.oncore.N 1094 * where N is the unit number viz 127.127.30.N. 1095 * If we don't find it we try 1096 * /etc/ntp.oncoreN 1097 * and then 1098 * /etc/ntp.oncore 1099 * 1100 * If we don't find any then we don't have the cable delay or PPS offset 1101 * and we choose MODE (4) below. 1102 * 1103 * Five Choices for MODE 1104 * (0) ONCORE is preinitialized, don't do anything to change it. 1105 * nb, DON'T set 0D mode, DON'T set Delay, position... 1106 * (1) NO RESET, Read Position, delays from data file, lock it in, go to 0D mode. 1107 * (2) NO RESET, Read Delays from data file, do SITE SURVEY to get position, 1108 * lock this in, go to 0D mode. 1109 * (3) HARD RESET, Read Position, delays from data file, lock it in, go to 0D mode. 1110 * (4) HARD RESET, Read Delays from data file, do SITE SURVEY to get position, 1111 * lock this in, go to 0D mode. 1112 * NB. If a POSITION is specified in the config file with mode=(2,4) [SITE SURVEY] 1113 * then this position is set as the INITIAL position of the ONCORE. 1114 * This can reduce the time to first fix. 1115 * ------------------------------------------------------------------------------- 1116 * Note that an Oncore UT without a battery backup retains NO information if it is 1117 * power cycled, with a Battery Backup it remembers the almanac, etc. 1118 * For an Oncore VP, there is an eeprom that will contain this data, along with the 1119 * option of Battery Backup. 1120 * So a UT without Battery Backup is equivalent to doing a HARD RESET on each 1121 * power cycle, since there is nowhere to store the data. 1122 * ------------------------------------------------------------------------------- 1123 * 1124 * If we open one or the other of the files, we read it looking for 1125 * MODE, LAT, LON, (HT, HTGPS, HTMSL), DELAY, OFFSET, ASSERT, CLEAR, HARDPPS, 1126 * STATUS, POSN3D, POSN2D, CHAN, TRAIM 1127 * then initialize using method MODE. For Mode = (1,3) all of (LAT, LON, HT) must 1128 * be present or mode reverts to (2,4). 1129 * 1130 * Read input file. 1131 * 1132 * # is comment to end of line 1133 * = allowed between 1st and 2nd fields. 1134 * 1135 * Expect to see one line with 'MODE' as first field, followed by an integer 1136 * in the range 0-4 (default = 4). 1137 * 1138 * Expect to see two lines with 'LONG', 'LAT' followed by 1-3 fields. 1139 * All numbers are floating point. 1140 * DDD.ddd 1141 * DDD MMM.mmm 1142 * DDD MMM SSS.sss 1143 * 1144 * Expect to see one line with 'HT' as first field, 1145 * followed by 1-2 fields. First is a number, the second is 'FT' or 'M' 1146 * for feet or meters. HT is the height above the GPS ellipsoid. 1147 * If the receiver reports height in both GPS and MSL, then we will report 1148 * the difference GPS-MSL on the clockstats file. 1149 * 1150 * There is an optional line, starting with DELAY, followed 1151 * by 1 or two fields. The first is a number (a time) the second is 1152 * 'MS', 'US' or 'NS' for miliseconds, microseconds or nanoseconds. 1153 * DELAY is cable delay, typically a few tens of ns. 1154 * 1155 * There is an optional line, starting with OFFSET, followed 1156 * by 1 or two fields. The first is a number (a time) the second is 1157 * 'MS', 'US' or 'NS' for miliseconds, microseconds or nanoseconds. 1158 * OFFSET is the offset of the PPS pulse from 0. (only fully implemented 1159 * with the PPSAPI, we need to be able to tell the Kernel about this 1160 * offset if the Kernel PLL is in use, but can only do this presently 1161 * when using the PPSAPI interface. If not using the Kernel PLL, 1162 * then there is no problem. 1163 * 1164 * There is an optional line, with either ASSERT or CLEAR on it, which 1165 * determine which transition of the PPS signal is used for timing by the 1166 * PPSAPI. If neither is present, then ASSERT is assumed. 1167 * ASSERT/CLEAR can also be set with FLAG2 of the ntp.conf input. 1168 * For Flag2, ASSERT=0, and hence is default. 1169 * 1170 * There is an optional line, with HARDPPS on it. Including this line causes 1171 * the PPS signal to control the kernel PLL. 1172 * HARDPPS can also be set with FLAG3 of the ntp.conf input. 1173 * For Flag3, 0 is disabled, and the default. 1174 * 1175 * There are three options that have to do with using the shared memory option. 1176 * First, to enable the option there must be a SHMEM line with a file name. 1177 * The file name is the file associated with the shared memory. 1178 * 1179 * In shared memory, there is one 'record' for each returned variable. 1180 * For the @@Ea data there are three 'records' containing position data. 1181 * There will always be data in the record corresponding to the '0D' @@Ea record, 1182 * and the user has a choice of filling the '3D' record by specifying POSN3D, 1183 * or the '2D' record by specifying POSN2D. In either case the '2D' or '3D' 1184 * record is filled once every 15s. 1185 * 1186 * Two additional variables that can be set are CHAN and TRAIM. These should be 1187 * set correctly by the code examining the @@Cj record, but we bring them out here 1188 * to allow the user to override either the # of channels, or the existence of TRAIM. 1189 * CHAN expects to be followed by in integer: 6, 8, or 12. TRAIM expects to be 1190 * followed by YES or NO. 1191 * 1192 * There is an optional line with MASK on it followed by one integer field in the 1193 * range 0 to 89. This sets the satellite mask angle and will determine the minimum 1194 * elevation angle for satellites to be tracked by the receiver. The default value 1195 * is 10 deg for the VP and 0 deg for all other receivers. 1196 * 1197 * There is an optional line with PPSCONTROL on it (only valid for M12 or M12+T 1198 * receivers, the option is read, but ignored for all others) 1199 * and it is followed by: 1200 * ON Turn PPS on. This is the default and the default for other 1201 * oncore receivers. The PPS is on even if not tracking 1202 * any satellites. 1203 * SATELLITE Turns PPS on if tracking at least 1 satellite, else off. 1204 * TRAIM Turns PPS on or off controlled by TRAIM. 1205 * The OFF option is NOT implemented, since the Oncore driver will not work 1206 * without the PPS signal. 1207 * 1208 * So acceptable input would be 1209 * # these are my coordinates (RWC) 1210 * LON -106 34.610 1211 * LAT 35 08.999 1212 * HT 1589 # could equally well say HT 5215 FT 1213 * DELAY 60 ns 1214 */ 1215 1216 FILE *fd; 1217 char *cc, *ca, line[100], units[2], device[64]; 1218 const char *dirs[] = { "/etc/ntp", "/etc", 0 }; 1219 const char *cp, **cpp; 1220 int i, sign, lat_flg, long_flg, ht_flg, mode, mask; 1221 double f1, f2, f3; 1222 1223 fd = NULL; /* just to shutup gcc complaint */ 1224 for (cpp=dirs; *cpp; cpp++) { 1225 cp = *cpp; 1226 snprintf(device, sizeof(device), "%s/ntp.oncore.%d", 1227 cp, instance->unit); /* try "ntp.oncore.0 */ 1228 if ((fd=fopen(device, "r"))) 1229 break; 1230 snprintf(device, sizeof(device), "%s/ntp.oncore%d", 1231 cp, instance->unit); /* try "ntp.oncore0" */ 1232 if ((fd=fopen(device, "r"))) 1233 break; 1234 snprintf(device, sizeof(device), "%s/ntp.oncore", cp); 1235 if ((fd=fopen(device, "r"))) /* last try "ntp.oncore" */ 1236 break; 1237 } 1238 1239 if (!fd) { /* no inputfile, default to the works ... */ 1240 instance->init_type = 4; 1241 return; 1242 } 1243 1244 mode = mask = 0; 1245 lat_flg = long_flg = ht_flg = 0; 1246 while (fgets(line, 100, fd)) { 1247 char *cpw; 1248 1249 /* Remove comments */ 1250 if ((cpw = strchr(line, '#'))) 1251 *cpw = '\0'; 1252 1253 /* Remove trailing space */ 1254 for (i = strlen(line); 1255 i > 0 && isascii((unsigned char)line[i - 1]) && isspace((unsigned char)line[i - 1]); 1256 ) 1257 line[--i] = '\0'; 1258 1259 /* Remove leading space */ 1260 for (cc = line; *cc && isascii((unsigned char)*cc) && isspace((unsigned char)*cc); cc++) 1261 continue; 1262 1263 /* Stop if nothing left */ 1264 if (!*cc) 1265 continue; 1266 1267 /* Uppercase the command and find the arg */ 1268 for (ca = cc; *ca; ca++) { 1269 if (isascii((unsigned char)*ca)) { 1270 if (islower((unsigned char)*ca)) { 1271 *ca = toupper((unsigned char)*ca); 1272 } else if (isspace((unsigned char)*ca) || (*ca == '=')) 1273 break; 1274 } 1275 } 1276 1277 /* Remove space (and possible =) leading the arg */ 1278 for (; *ca && isascii((unsigned char)*ca) && (isspace((unsigned char)*ca) || (*ca == '=')); ca++) 1279 continue; 1280 1281 if (!strncmp(cc, "STATUS", (size_t) 6) || !strncmp(cc, "SHMEM", (size_t) 5)) { 1282 instance->shmem_fname = estrdup(ca); 1283 continue; 1284 } 1285 1286 /* Uppercase argument as well */ 1287 for (cpw = ca; *cpw; cpw++) 1288 if (isascii((unsigned char)*cpw) && islower((unsigned char)*cpw)) 1289 *cpw = toupper((unsigned char)*cpw); 1290 1291 if (!strncmp(cc, "LAT", (size_t) 3)) { 1292 f1 = f2 = f3 = 0; 1293 sscanf(ca, "%lf %lf %lf", &f1, &f2, &f3); 1294 sign = 1; 1295 if (f1 < 0) { 1296 f1 = -f1; 1297 sign = -1; 1298 } 1299 instance->ss_lat = sign*1000*(fabs(f3) + 60*(fabs(f2) + 60*f1)); /*miliseconds*/ 1300 lat_flg++; 1301 } else if (!strncmp(cc, "LON", (size_t) 3)) { 1302 f1 = f2 = f3 = 0; 1303 sscanf(ca, "%lf %lf %lf", &f1, &f2, &f3); 1304 sign = 1; 1305 if (f1 < 0) { 1306 f1 = -f1; 1307 sign = -1; 1308 } 1309 instance->ss_long = sign*1000*(fabs(f3) + 60*(fabs(f2) + 60*f1)); /*miliseconds*/ 1310 long_flg++; 1311 } else if (!strncmp(cc, "HT", (size_t) 2)) { 1312 f1 = 0; 1313 units[0] = '\0'; 1314 sscanf(ca, "%lf %1s", &f1, units); 1315 if (units[0] == 'F') 1316 f1 = 0.3048 * f1; 1317 instance->ss_ht = 100 * f1; /* cm */ 1318 ht_flg++; 1319 } else if (!strncmp(cc, "DELAY", (size_t) 5)) { 1320 f1 = 0; 1321 units[0] = '\0'; 1322 sscanf(ca, "%lf %1s", &f1, units); 1323 if (units[0] == 'N') 1324 ; 1325 else if (units[0] == 'U') 1326 f1 = 1000 * f1; 1327 else if (units[0] == 'M') 1328 f1 = 1000000 * f1; 1329 else 1330 f1 = 1000000000 * f1; 1331 if (f1 < 0 || f1 > 1.e9) 1332 f1 = 0; 1333 if (f1 < 0 || f1 > 999999) 1334 oncore_log_f(instance, LOG_WARNING, 1335 "PPS Cable delay of %fns out of Range, ignored", 1336 f1); 1337 else 1338 instance->delay = f1; /* delay in ns */ 1339 } else if (!strncmp(cc, "OFFSET", (size_t) 6)) { 1340 f1 = 0; 1341 units[0] = '\0'; 1342 sscanf(ca, "%lf %1s", &f1, units); 1343 if (units[0] == 'N') 1344 ; 1345 else if (units[0] == 'U') 1346 f1 = 1000 * f1; 1347 else if (units[0] == 'M') 1348 f1 = 1000000 * f1; 1349 else 1350 f1 = 1000000000 * f1; 1351 if (f1 < 0 || f1 > 1.e9) 1352 f1 = 0; 1353 if (f1 < 0 || f1 > 999999999.) 1354 oncore_log_f(instance, LOG_WARNING, 1355 "PPS Offset of %fns out of Range, ignored", 1356 f1); 1357 else 1358 instance->offset = f1; /* offset in ns */ 1359 } else if (!strncmp(cc, "MODE", (size_t) 4)) { 1360 sscanf(ca, "%d", &mode); 1361 if (mode < 0 || mode > 4) 1362 mode = 4; 1363 } else if (!strncmp(cc, "ASSERT", (size_t) 6)) { 1364 instance->assert = 1; 1365 } else if (!strncmp(cc, "CLEAR", (size_t) 5)) { 1366 instance->assert = 0; 1367 } else if (!strncmp(cc, "HARDPPS", (size_t) 7)) { 1368 instance->hardpps = 1; 1369 } else if (!strncmp(cc, "POSN2D", (size_t) 6)) { 1370 instance->shmem_Posn = 2; 1371 } else if (!strncmp(cc, "POSN3D", (size_t) 6)) { 1372 instance->shmem_Posn = 3; 1373 } else if (!strncmp(cc, "CHAN", (size_t) 4)) { 1374 sscanf(ca, "%d", &i); 1375 if ((i == 6) || (i == 8) || (i == 12)) 1376 instance->chan_in = i; 1377 } else if (!strncmp(cc, "TRAIM", (size_t) 5)) { 1378 instance->traim_in = 1; /* so TRAIM alone is YES */ 1379 if (!strcmp(ca, "NO") || !strcmp(ca, "OFF")) /* Yes/No, On/Off */ 1380 instance->traim_in = 0; 1381 } else if (!strncmp(cc, "MASK", (size_t) 4)) { 1382 sscanf(ca, "%d", &mask); 1383 if (mask > -1 && mask < 90) 1384 instance->Ag = mask; /* Satellite mask angle */ 1385 } else if (!strncmp(cc,"PPSCONTROL",10)) { /* pps control M12 only */ 1386 if (!strcmp(ca,"ON") || !strcmp(ca, "CONTINUOUS")) { 1387 instance->pps_control = 1; /* PPS always on */ 1388 } else if (!strcmp(ca,"SATELLITE")) { 1389 instance->pps_control = 2; /* PPS on when satellite is available */ 1390 } else if (!strcmp(ca,"TRAIM")) { 1391 instance->pps_control = 3; /* PPS on when TRAIM status is OK */ 1392 } else { 1393 oncore_log_f(instance, LOG_WARNING, 1394 "Unknown value \"%s\" for PPSCONTROL, ignored", 1395 cc); 1396 } 1397 } 1398 } 1399 fclose(fd); 1400 1401 /* 1402 * OK, have read all of data file, and extracted the good stuff. 1403 * If lat/long/ht specified they ALL must be specified for mode = (1,3). 1404 */ 1405 1406 instance->posn_set = 1; 1407 if (!( lat_flg && long_flg && ht_flg )) { 1408 oncore_log_f(instance, LOG_WARNING, 1409 "ONCORE: incomplete data on %s", device); 1410 instance->posn_set = 0; 1411 if (mode == 1 || mode == 3) { 1412 oncore_log_f(instance, LOG_WARNING, 1413 "Input Mode = %d, but no/incomplete position, mode set to %d", 1414 mode, mode+1); 1415 mode++; 1416 } 1417 } 1418 instance->init_type = mode; 1419 1420 oncore_log_f(instance, LOG_INFO, "Input mode = %d", mode); 1421} 1422 1423 1424 1425/* 1426 * move data from NTP to buffer (toss the extra in the unlikely case it won't fit) 1427 */ 1428 1429static void 1430oncore_receive( 1431 struct recvbuf *rbufp 1432 ) 1433{ 1434 size_t i; 1435 u_char *p; 1436 struct peer *peer; 1437 struct instance *instance; 1438 1439 peer = rbufp->recv_peer; 1440 instance = peer->procptr->unitptr; 1441 p = (u_char *) &rbufp->recv_space; 1442 1443#ifdef ONCORE_VERBOSE_RECEIVE 1444 if (debug > 4) { 1445 int i; 1446 char Msg[120], Msg2[10]; 1447 1448 oncore_log_f(instance, LOG_DEBUG, 1449 ">>> %d bytes available", 1450 rbufp->recv_length); 1451 strlcpy(Msg, ">>>", sizeof(Msg)); 1452 for (i = 0; i < rbufp->recv_length; i++) { 1453 snprintf(Msg2, sizeof(Msg2), "%02x ", p[i]); 1454 strlcat(Msg, Msg2, sizeof(Msg)); 1455 } 1456 oncore_log(instance, LOG_DEBUG, Msg); 1457 1458 strlcpy(Msg, ">>>", sizeof(Msg)); 1459 for (i = 0; i < rbufp->recv_length; i++) { 1460 snprintf(Msg2, sizeof(Msg2), "%03o ", p[i]); 1461 strlcat(Msg, Msg2, sizeof(Msg)); 1462 } 1463 oncore_log(instance, LOG_DEBUG, Msg); 1464 } 1465#endif 1466 1467 i = rbufp->recv_length; 1468 if ((size_t)rcvptr + i >= sizeof(rcvbuf)) 1469 i = sizeof(rcvbuf) - rcvptr; /* and some char will be lost */ 1470 memcpy(rcvbuf+rcvptr, p, i); 1471 rcvptr += i; 1472 oncore_consume(instance); 1473} 1474 1475 1476 1477/* 1478 * Deal with any complete messages 1479 */ 1480 1481static void 1482oncore_consume( 1483 struct instance *instance 1484 ) 1485{ 1486 unsigned i, m, l; 1487 1488 while (rcvptr >= 7) { 1489 if (rcvbuf[0] != '@' || rcvbuf[1] != '@') { 1490 /* We're not in sync, lets try to get there */ 1491 for (i=1; i < rcvptr-1; i++) 1492 if (rcvbuf[i] == '@' && rcvbuf[i+1] == '@') 1493 break; 1494#ifdef ONCORE_VERBOSE_CONSUME 1495 if (debug > 4) 1496 oncore_log_f(instance, LOG_DEBUG, 1497 ">>> skipping %d chars", 1498 i); 1499#endif 1500 if (i != rcvptr) 1501 memcpy(rcvbuf, rcvbuf+i, (size_t)(rcvptr-i)); 1502 rcvptr -= i; 1503 continue; 1504 } 1505 1506 /* Ok, we have a header now */ 1507 l = sizeof(oncore_messages)/sizeof(oncore_messages[0]) -1; 1508 for(m=0; m<l; m++) 1509 if (!strncmp(oncore_messages[m].flag, (char *)(rcvbuf+2), (size_t) 2)) 1510 break; 1511 if (m == l) { 1512#ifdef ONCORE_VERBOSE_CONSUME 1513 if (debug > 4) 1514 oncore_log_f(instance, LOG_DEBUG, 1515 ">>> Unknown MSG, skipping 4 (%c%c)", 1516 rcvbuf[2], rcvbuf[3]); 1517#endif 1518 memcpy(rcvbuf, rcvbuf+4, (size_t) 4); 1519 rcvptr -= 4; 1520 continue; 1521 } 1522 1523 l = oncore_messages[m].len; 1524#ifdef ONCORE_VERBOSE_CONSUME 1525 if (debug > 3) 1526 oncore_log_f(instance, LOG_DEBUG, 1527 "GOT: %c%c %d of %d entry %d", 1528 instance->unit, rcvbuf[2], 1529 rcvbuf[3], rcvptr, l, m); 1530#endif 1531 /* Got the entire message ? */ 1532 1533 if (rcvptr < l) 1534 return; 1535 1536 /* are we at the end of message? should be <Cksum><CR><LF> */ 1537 1538 if (rcvbuf[l-2] != '\r' || rcvbuf[l-1] != '\n') { 1539#ifdef ONCORE_VERBOSE_CONSUME 1540 if (debug) 1541 oncore_log(instance, LOG_DEBUG, "NO <CR><LF> at end of message"); 1542#endif 1543 } else { /* check the CheckSum */ 1544 if (oncore_checksum_ok(rcvbuf, l)) { 1545 if (instance->shmem != NULL) { 1546 instance->shmem[oncore_messages[m].shmem + 2]++; 1547 memcpy(instance->shmem + oncore_messages[m].shmem + 3, 1548 rcvbuf, (size_t) l); 1549 } 1550 oncore_msg_any(instance, rcvbuf, (size_t) (l-3), m); 1551 if (oncore_messages[m].handler) 1552 oncore_messages[m].handler(instance, rcvbuf, (size_t) (l-3)); 1553 } 1554#ifdef ONCORE_VERBOSE_CONSUME 1555 else if (debug) { 1556 char Msg[120], Msg2[10]; 1557 1558 oncore_log(instance, LOG_ERR, "Checksum mismatch!"); 1559 snprintf(Msg, sizeof(Msg), "@@%c%c ", rcvbuf[2], rcvbuf[3]); 1560 for (i = 4; i < l; i++) { 1561 snprintf(Msg2, sizeof(Msg2), 1562 "%03o ", rcvbuf[i]); 1563 strlcat(Msg, Msg2, sizeof(Msg)); 1564 } 1565 oncore_log(instance, LOG_DEBUG, Msg); 1566 } 1567#endif 1568 } 1569 1570 if (l != rcvptr) 1571 memcpy(rcvbuf, rcvbuf+l, (size_t) (rcvptr-l)); 1572 rcvptr -= l; 1573 } 1574} 1575 1576 1577 1578static void 1579oncore_get_timestamp( 1580 struct instance *instance, 1581 long dt1, /* tick offset THIS time step */ 1582 long dt2 /* tick offset NEXT time step */ 1583 ) 1584{ 1585 int Rsm; 1586 u_long j; 1587 l_fp ts, ts_tmp; 1588 double dmy; 1589#ifdef HAVE_STRUCT_TIMESPEC 1590 struct timespec *tsp = 0; 1591#else 1592 struct timeval *tsp = 0; 1593#endif 1594 int current_mode; 1595 pps_params_t current_params; 1596 struct timespec timeout; 1597 struct peer *peer; 1598 pps_info_t pps_i; 1599 char Msg[160]; 1600 1601 peer = instance->peer; 1602 1603#if 1 1604 /* If we are in SiteSurvey mode, then we are in 3D mode, and we fall thru. 1605 * If we have Finished the SiteSurvey, then we fall thru for the 14/15 1606 * times we get here in 0D mode (the 1/15 is in 3D for SHMEM). 1607 * This gives good time, which gets better when the SS is done. 1608 */ 1609 1610 if ((instance->site_survey == ONCORE_SS_DONE) && (instance->mode != MODE_0D)) { 1611#else 1612 /* old check, only fall thru for SS_DONE and 0D mode, 2h45m wait for ticks */ 1613 1614 if ((instance->site_survey != ONCORE_SS_DONE) || (instance->mode != MODE_0D)) { 1615#endif 1616 peer->flags &= ~FLAG_PPS; /* problem - clear PPS FLAG */ 1617 return; 1618 } 1619 1620 /* Don't do anything without an almanac to define the GPS->UTC delta */ 1621 1622 if (instance->rsm.bad_almanac) { 1623 peer->flags &= ~FLAG_PPS; /* problem - clear PPS FLAG */ 1624 return; 1625 } 1626 1627 /* Once the Almanac is valid, the M12+T does not produce valid UTC 1628 * immediately. 1629 * Wait for UTC offset decode valid, then wait one message more 1630 * so we are not off by 13 seconds after reset. 1631 */ 1632 1633 if (instance->count5) { 1634 instance->count5--; 1635 peer->flags &= ~FLAG_PPS; /* problem - clear PPS FLAG */ 1636 return; 1637 } 1638 1639 j = instance->ev_serial; 1640 timeout.tv_sec = 0; 1641 timeout.tv_nsec = 0; 1642 if (time_pps_fetch(instance->pps_h, PPS_TSFMT_TSPEC, &pps_i, 1643 &timeout) < 0) { 1644 oncore_log_f(instance, LOG_ERR, 1645 "time_pps_fetch failed %m"); 1646 peer->flags &= ~FLAG_PPS; /* problem - clear PPS FLAG */ 1647 return; 1648 } 1649 1650 if (instance->assert) { 1651 tsp = &pps_i.assert_timestamp; 1652 1653#ifdef ONCORE_VERBOSE_GET_TIMESTAMP 1654 if (debug > 2) { 1655 u_long i; 1656 1657 i = (u_long) pps_i.assert_sequence; 1658# ifdef HAVE_STRUCT_TIMESPEC 1659 oncore_log_f(instance, LOG_DEBUG, 1660 "serial/j (%lu, %lu) %ld.%09ld", i, 1661 j, (long)tsp->tv_sec, 1662 (long)tsp->tv_nsec); 1663# else 1664 oncore_log_f(instance, LOG_DEBUG, 1665 "serial/j (%lu, %lu) %ld.%06ld", i, 1666 j, (long)tsp->tv_sec, 1667 (long)tsp->tv_usec); 1668# endif 1669 } 1670#endif 1671 1672 if (pps_i.assert_sequence == j) { 1673 oncore_log(instance, LOG_NOTICE, "ONCORE: oncore_get_timestamp, error serial pps"); 1674 peer->flags &= ~FLAG_PPS; /* problem - clear PPS FLAG */ 1675 return; 1676 } 1677 1678 instance->ev_serial = pps_i.assert_sequence; 1679 } else { 1680 tsp = &pps_i.clear_timestamp; 1681 1682#if 0 1683 if (debug > 2) { 1684 u_long i; 1685 1686 i = (u_long) pps_i.clear_sequence; 1687# ifdef HAVE_STRUCT_TIMESPEC 1688 oncore_log_f(instance, LOG_DEBUG, 1689 "serial/j (%lu, %lu) %ld.%09ld", i, 1690 j, (long)tsp->tv_sec, 1691 (long)tsp->tv_nsec); 1692# else 1693 oncore_log_f(instance, LOG_DEBUG, 1694 "serial/j (%lu, %lu) %ld.%06ld", i, 1695 j, (long)tsp->tv_sec, 1696 (long)tsp->tv_usec); 1697# endif 1698 } 1699#endif 1700 1701 if (pps_i.clear_sequence == j) { 1702 oncore_log(instance, LOG_ERR, "oncore_get_timestamp, error serial pps"); 1703 peer->flags &= ~FLAG_PPS; /* problem - clear PPS FLAG */ 1704 return; 1705 } 1706 instance->ev_serial = pps_i.clear_sequence; 1707 } 1708 1709 /* convert timespec -> ntp l_fp */ 1710 1711 dmy = tsp->tv_nsec; 1712 dmy /= 1e9; 1713 ts.l_uf = dmy * 4294967296.0; 1714 ts.l_ui = tsp->tv_sec; 1715 1716#if 0 1717 alternate code for previous 4 lines is 1718 dmy = 1.0e-9*tsp->tv_nsec; /* fractional part */ 1719 DTOLFP(dmy, &ts); 1720 dmy = tsp->tv_sec; /* integer part */ 1721 DTOLFP(dmy, &ts_tmp); 1722 L_ADD(&ts, &ts_tmp); 1723 or more simply 1724 dmy = 1.0e-9*tsp->tv_nsec; /* fractional part */ 1725 DTOLFP(dmy, &ts); 1726 ts.l_ui = tsp->tv_sec; 1727#endif /* 0 */ 1728 1729 /* now have timestamp in ts */ 1730 /* add in saw_tooth and offset, these will be ZERO if no TRAIM */ 1731 /* they will be IGNORED if the PPSAPI cant do PPS_OFFSET/ASSERT/CLEAR */ 1732 /* we just try to add them in and dont test for that here */ 1733 1734 /* saw_tooth not really necessary if using TIMEVAL */ 1735 /* since its only precise to us, but do it anyway. */ 1736 1737 /* offset in ns, and is positive (late), we subtract */ 1738 /* to put the PPS time transition back where it belongs */ 1739 1740 /* must hand the offset for the NEXT sec off to the Kernel to do */ 1741 /* the addition, so that the Kernel PLL sees the offset too */ 1742 1743 if (instance->assert) 1744 instance->pps_p.assert_offset.tv_nsec = -dt2; 1745 else 1746 instance->pps_p.clear_offset.tv_nsec = -dt2; 1747 1748 /* The following code is necessary, and not just a time_pps_setparams, 1749 * using the saved instance->pps_p, since some other process on the 1750 * machine may have diddled with the mode bits (say adding something 1751 * that it needs). We take what is there and ADD what we need. 1752 * [[ The results from the time_pps_getcap is unlikely to change so 1753 * we could probably just save it, but I choose to do the call ]] 1754 * Unfortunately, there is only ONE set of mode bits in the kernel per 1755 * interface, and not one set for each open handle. 1756 * 1757 * There is still a race condition here where we might mess up someone 1758 * elses mode, but if he is being careful too, he should survive. 1759 */ 1760 1761 if (time_pps_getcap(instance->pps_h, ¤t_mode) < 0) { 1762 oncore_log_f(instance, LOG_ERR, 1763 "time_pps_getcap failed: %m"); 1764 peer->flags &= ~FLAG_PPS; /* problem - clear PPS FLAG */ 1765 return; 1766 } 1767 1768 if (time_pps_getparams(instance->pps_h, ¤t_params) < 0) { 1769 oncore_log_f(instance, LOG_ERR, 1770 "time_pps_getparams failed: %m"); 1771 peer->flags &= ~FLAG_PPS; /* problem - clear PPS FLAG */ 1772 return; 1773 } 1774 1775 /* or current and mine */ 1776 current_params.mode |= instance->pps_p.mode; 1777 /* but only set whats legal */ 1778 current_params.mode &= current_mode; 1779 1780 current_params.assert_offset.tv_sec = 0; 1781 current_params.assert_offset.tv_nsec = -dt2; 1782 current_params.clear_offset.tv_sec = 0; 1783 current_params.clear_offset.tv_nsec = -dt2; 1784 1785 if (time_pps_setparams(instance->pps_h, ¤t_params)) 1786 oncore_log(instance, LOG_ERR, "ONCORE: Error doing time_pps_setparams"); 1787 1788 /* have time from UNIX origin, convert to NTP origin. */ 1789 1790 ts.l_ui += JAN_1970; 1791 instance->pp->lastrec = ts; 1792 1793 /* print out information about this timestamp (long line) */ 1794 1795 ts_tmp = ts; 1796 ts_tmp.l_ui = 0; /* zero integer part */ 1797 LFPTOD(&ts_tmp, dmy); /* convert fractional part to a double */ 1798 j = 1.0e9*dmy; /* then to integer ns */ 1799 1800 Rsm = 0; 1801 if (instance->chan == 6) 1802 Rsm = instance->BEHa[64]; 1803 else if (instance->chan == 8) 1804 Rsm = instance->BEHa[72]; 1805 else if (instance->chan == 12) 1806 Rsm = ((instance->BEHa[129]<<8) | instance->BEHa[130]); 1807 1808 if (instance->chan == 6 || instance->chan == 8) { 1809 char f1[6], f2[6], f3[6], f4[6]; 1810 if (instance->traim) { 1811 snprintf(f1, sizeof(f1), "%d", 1812 instance->BEHn[21]); 1813 snprintf(f2, sizeof(f2), "%d", 1814 instance->BEHn[22]); 1815 snprintf(f3, sizeof(f3), "%2d", 1816 instance->BEHn[23] * 256 + 1817 instance->BEHn[24]); 1818 snprintf(f4, sizeof(f4), "%3d", 1819 (s_char)instance->BEHn[25]); 1820 } else { 1821 strlcpy(f1, "x", sizeof(f1)); 1822 strlcpy(f2, "x", sizeof(f2)); 1823 strlcpy(f3, "xx", sizeof(f3)); 1824 strlcpy(f4, "xxx", sizeof(f4)); 1825 } 1826 snprintf(Msg, sizeof(Msg), /* MAX length 128, currently at 127 */ 1827 "%u.%09lu %d %d %2d %2d %2d %2ld rstat %02x dop %4.1f nsat %2d,%d traim %d,%s,%s sigma %s neg-sawtooth %s sat %d%d%d%d%d%d%d%d", 1828 ts.l_ui, j, 1829 instance->pp->year, instance->pp->day, 1830 instance->pp->hour, instance->pp->minute, instance->pp->second, 1831 (long) tsp->tv_sec % 60, 1832 Rsm, 0.1*(256*instance->BEHa[35]+instance->BEHa[36]), 1833 /*rsat dop */ 1834 instance->BEHa[38], instance->BEHa[39], instance->traim, f1, f2, 1835 /* nsat visible, nsat tracked, traim,traim,traim */ 1836 f3, f4, 1837 /* sigma neg-sawtooth */ 1838 /*sat*/ instance->BEHa[41], instance->BEHa[45], instance->BEHa[49], instance->BEHa[53], 1839 instance->BEHa[57], instance->BEHa[61], instance->BEHa[65], instance->BEHa[69] 1840 ); /* will be 0 for 6 chan */ 1841 } else if (instance->chan == 12) { 1842 char f1[6], f2[6], f3[6], f4[6]; 1843 if (instance->traim) { 1844 snprintf(f1, sizeof(f1), "%d", 1845 instance->BEHn[6]); 1846 snprintf(f2, sizeof(f2), "%d", 1847 instance->BEHn[7]); 1848 snprintf(f3, sizeof(f3), "%d", 1849 instance->BEHn[12] * 256 + 1850 instance->BEHn[13]); 1851 snprintf(f4, sizeof(f4), "%3d", 1852 (s_char)instance->BEHn[14]); 1853 } else { 1854 strlcpy(f1, "x", sizeof(f1)); 1855 strlcpy(f2, "x", sizeof(f2)); 1856 strlcpy(f3, "xx", sizeof(f3)); 1857 strlcpy(f4, "xxx", sizeof(f4)); 1858 } 1859 snprintf(Msg, sizeof(Msg), 1860 "%u.%09lu %d %d %2d %2d %2d %2ld rstat %02x dop %4.1f nsat %2d,%d traim %d,%s,%s sigma %s neg-sawtooth %s sat %d%d%d%d%d%d%d%d%d%d%d%d", 1861 ts.l_ui, j, 1862 instance->pp->year, instance->pp->day, 1863 instance->pp->hour, instance->pp->minute, instance->pp->second, 1864 (long) tsp->tv_sec % 60, 1865 Rsm, 0.1*(256*instance->BEHa[53]+instance->BEHa[54]), 1866 /*rsat dop */ 1867 instance->BEHa[55], instance->BEHa[56], instance->traim, f1, f2, 1868 /* nsat visible, nsat tracked traim,traim,traim */ 1869 f3, f4, 1870 /* sigma neg-sawtooth */ 1871 /*sat*/ instance->BEHa[58], instance->BEHa[64], instance->BEHa[70], instance->BEHa[76], 1872 instance->BEHa[82], instance->BEHa[88], instance->BEHa[94], instance->BEHa[100], 1873 instance->BEHa[106], instance->BEHa[112], instance->BEHa[118], instance->BEHa[124] 1874 ); 1875 } 1876 1877 /* and some things I dont understand (magic ntp things) */ 1878 1879#if 1 1880 oncore_feed_clockproc(instance); 1881#else 1882 if (!refclock_process(instance->pp)) { 1883 refclock_report(peer, CEVNT_BADTIME); 1884 peer->flags &= ~FLAG_PPS; /* problem - clear PPS FLAG */ 1885 return; 1886 } 1887#endif 1888 1889 oncore_log(instance, LOG_INFO, Msg); /* this is long message above */ 1890 instance->pollcnt = 2; 1891 1892 if (instance->polled) { 1893 instance->polled = 0; 1894 /* instance->pp->dispersion = instance->pp->skew = 0; */ 1895 instance->pp->lastref = instance->pp->lastrec; 1896 refclock_receive(instance->peer); 1897 } 1898 peer->flags |= FLAG_PPS; 1899} 1900 1901 1902/*************** oncore_msg_XX routines start here *******************/ 1903 1904 1905/* 1906 * print Oncore response message. 1907 */ 1908 1909static void 1910oncore_msg_any( 1911 struct instance *instance, 1912 u_char *buf, 1913 size_t len, 1914 int idx 1915 ) 1916{ 1917#ifdef ONCORE_VERBOSE_MSG_ANY 1918 int i; 1919 const char *fmt = oncore_messages[idx].fmt; 1920 const char *p; 1921 char *q; 1922 char *qlim; 1923#ifdef HAVE_GETCLOCK 1924 struct timespec ts; 1925#endif 1926 struct timeval tv; 1927 char Msg[120], Msg2[10]; 1928 1929 if (debug > 3) { 1930# ifdef HAVE_GETCLOCK 1931 (void) getclock(TIMEOFDAY, &ts); 1932 tv.tv_sec = ts.tv_sec; 1933 tv.tv_usec = ts.tv_nsec / 1000; 1934# else 1935 GETTIMEOFDAY(&tv, 0); 1936# endif 1937 oncore_log(instance, LOG_DEBUG, "%ld.%06ld", 1938 (long)tv.tv_sec, (long)tv.tv_usec); 1939 1940 if (!*fmt) { 1941 snprintf(Msg, sizeof(Msg), ">>@@%c%c ", buf[2], 1942 buf[3]); 1943 for(i = 2; i < len && i < 2400 ; i++) { 1944 snprintf(Msg2, sizeof(Msg2), "%02x", 1945 buf[i]); 1946 strlcat(Msg, Msg2, sizeof(Msg)); 1947 } 1948 oncore_log(instance, LOG_DEBUG, Msg); 1949 return; 1950 } else { 1951 strlcpy(Msg, "##", sizeof(Msg)); 1952 qlim = Msg + sizeof(Msg) - 3; 1953 for (p = fmt, q = Msg + 2; q < qlim && *p; ) { 1954 *q++ = *p++; 1955 *q++ = '_'; 1956 } 1957 *q = '\0'; 1958 oncore_log(instance, LOG_DEBUG, Msg); 1959 snprintf(Msg, sizeof(Msg), "%c%c", buf[2], 1960 buf[3]); 1961 i = 4; 1962 for (p = fmt; *p; p++) { 1963 snprintf(Msg2, "%02x", buf[i++]); 1964 strlcat(Msg, Msg2, sizeof(Msg)); 1965 } 1966 oncore_log(instance, LOG_DEBUG, Msg); 1967 } 1968 } 1969#endif 1970} 1971 1972 1973 1974/* Latitude, Longitude, Height */ 1975 1976static void 1977oncore_msg_Adef( 1978 struct instance *instance, 1979 u_char *buf, 1980 size_t len 1981 ) 1982{ 1983} 1984 1985 1986 1987/* Mask Angle */ 1988 1989static void 1990oncore_msg_Ag( 1991 struct instance *instance, 1992 u_char *buf, 1993 size_t len 1994 ) 1995{ 1996 const char *cp; 1997 1998 cp = "set to"; 1999 if (instance->o_state == ONCORE_RUN) 2000 cp = "is"; 2001 2002 instance->Ag = buf[4]; 2003 oncore_log_f(instance, LOG_INFO, 2004 "Satellite mask angle %s %d degrees", cp, 2005 (int)instance->Ag); 2006} 2007 2008 2009 2010/* 2011 * get Position hold position 2012 */ 2013 2014static void 2015oncore_msg_As( 2016 struct instance *instance, 2017 u_char *buf, 2018 size_t len 2019 ) 2020{ 2021 instance->ss_lat = buf_w32(&buf[4]); 2022 instance->ss_long = buf_w32(&buf[8]); 2023 instance->ss_ht = buf_w32(&buf[12]); 2024 2025 /* Print out Position */ 2026 oncore_print_posn(instance); 2027} 2028 2029 2030 2031/* 2032 * Try to use Oncore UT+ Auto Survey Feature 2033 * If its not there (VP), set flag to do it ourselves. 2034 */ 2035 2036static void 2037oncore_msg_At( 2038 struct instance *instance, 2039 u_char *buf, 2040 size_t len 2041 ) 2042{ 2043 instance->saw_At = 1; 2044 if (instance->site_survey == ONCORE_SS_TESTING) { 2045 if (buf[4] == 2) { 2046 oncore_log(instance, LOG_NOTICE, 2047 "Initiating hardware 3D site survey"); 2048 2049 oncore_log(instance, LOG_NOTICE, "SSstate = ONCORE_SS_HW"); 2050 instance->site_survey = ONCORE_SS_HW; 2051 } 2052 } 2053} 2054 2055 2056 2057/* 2058 * get PPS Offset 2059 * Nb. @@Ay is not supported for early UT (no plus) model 2060 */ 2061 2062static void 2063oncore_msg_Ay( 2064 struct instance *instance, 2065 u_char *buf, 2066 size_t len 2067 ) 2068{ 2069 if (instance->saw_Ay) 2070 return; 2071 2072 instance->saw_Ay = 1; 2073 2074 instance->offset = buf_w32(&buf[4]); 2075 2076 oncore_log_f(instance, LOG_INFO, "PPS Offset is set to %ld ns", 2077 instance->offset); 2078} 2079 2080 2081 2082/* 2083 * get Cable Delay 2084 */ 2085 2086static void 2087oncore_msg_Az( 2088 struct instance *instance, 2089 u_char *buf, 2090 size_t len 2091 ) 2092{ 2093 if (instance->saw_Az) 2094 return; 2095 2096 instance->saw_Az = 1; 2097 2098 instance->delay = buf_w32(&buf[4]); 2099 2100 oncore_log_f(instance, LOG_INFO, "Cable delay is set to %ld ns", 2101 instance->delay); 2102} 2103 2104 2105 2106/* Ba, Ea and Ha come here, these contain Position */ 2107 2108static void 2109oncore_msg_BaEaHa( 2110 struct instance *instance, 2111 u_char *buf, 2112 size_t len 2113 ) 2114{ 2115 const char *cp; 2116 int mode; 2117 2118 /* OK, we are close to the RUN state now. 2119 * But we have a few more items to initialize first. 2120 * 2121 * At the beginning of this routine there are several 'timers'. 2122 * We enter this routine 1/sec, and since the upper levels of NTP have usurped 2123 * the use of timers, we use the 1/sec entry to do things that 2124 * we would normally do with timers... 2125 */ 2126 2127 if (instance->o_state == ONCORE_CHECK_CHAN) { /* here while checking for the # chan */ 2128 if (buf[2] == 'B') { /* 6chan */ 2129 if (instance->chan_ck < 6) instance->chan_ck = 6; 2130 } else if (buf[2] == 'E') { /* 8chan */ 2131 if (instance->chan_ck < 8) instance->chan_ck = 8; 2132 } else if (buf[2] == 'H') { /* 12chan */ 2133 if (instance->chan_ck < 12) instance->chan_ck = 12; 2134 } 2135 2136 if (instance->count3++ < 5) 2137 return; 2138 2139 instance->count3 = 0; 2140 2141 if (instance->chan_in != -1) /* set in Input */ 2142 instance->chan = instance->chan_in; 2143 else /* set from test */ 2144 instance->chan = instance->chan_ck; 2145 2146 oncore_log_f(instance, LOG_INFO, "Input says chan = %d", 2147 instance->chan_in); 2148 oncore_log_f(instance, LOG_INFO, "Model # says chan = %d", 2149 instance->chan_id); 2150 oncore_log_f(instance, LOG_INFO, "Testing says chan = %d", 2151 instance->chan_ck); 2152 oncore_log_f(instance, LOG_INFO, "Using chan = %d", 2153 instance->chan); 2154 2155 instance->o_state = ONCORE_HAVE_CHAN; 2156 oncore_log(instance, LOG_NOTICE, "state = ONCORE_HAVE_CHAN"); 2157 2158 instance->timeout = 4; 2159 oncore_sendmsg(instance, oncore_cmd_Cj, sizeof(oncore_cmd_Cj)); 2160 return; 2161 } 2162 2163 if (instance->o_state != ONCORE_ALMANAC && instance->o_state != ONCORE_RUN) 2164 return; 2165 2166 /* PAUSE 5sec - make sure results are stable, before using position */ 2167 2168 if (instance->count) { 2169 if (instance->count++ < 5) 2170 return; 2171 instance->count = 0; 2172 } 2173 2174 memcpy(instance->BEHa, buf, (size_t) (len+3)); /* Ba, Ea or Ha */ 2175 2176 /* check if we saw a response to Gc (M12 or M12+T */ 2177 2178 if (instance->pps_control_msg_seen != -2) { 2179 if ((instance->pps_control_msg_seen == -1) && (instance->pps_control != -1)) { 2180 oncore_log(instance, LOG_INFO, "PPSCONTROL set, but not implemented (not M12)"); 2181 } 2182 instance->pps_control_msg_seen = -2; 2183 } 2184 2185 /* check the antenna (did it get unplugged) and almanac (is it ready) for changes. */ 2186 2187 oncore_check_almanac(instance); 2188 oncore_check_antenna(instance); 2189 2190 /* If we are in Almanac mode, waiting for Almanac, we can't do anything till we have it */ 2191 /* When we have an almanac, we will start the Bn/En/@@Hn messages */ 2192 2193 if (instance->o_state == ONCORE_ALMANAC) 2194 if (oncore_wait_almanac(instance)) 2195 return; 2196 2197 /* do some things once when we get this far in BaEaHa */ 2198 2199 if (instance->once) { 2200 instance->once = 0; 2201 instance->count2 = 1; 2202 2203 /* Have we seen an @@At (position hold) command response */ 2204 /* if not, message out */ 2205 2206 if (instance->chan != 12 && !instance->saw_At) { 2207 oncore_log(instance, LOG_NOTICE, 2208 "Not Good, no @@At command (no Position Hold), must be a GT/GT+"); 2209 oncore_sendmsg(instance, oncore_cmd_Av1, sizeof(oncore_cmd_Av1)); 2210 } 2211 2212 /* have an Almanac, can start the SiteSurvey 2213 * (actually only need to get past the almanac_load where we diddle with At 2214 * command,- we can't change it after we start the HW_SS below 2215 */ 2216 2217 mode = instance->init_type; 2218 switch (mode) { 2219 case 0: /* NO initialization, don't change anything */ 2220 case 1: /* Use given Position */ 2221 case 3: 2222 instance->site_survey = ONCORE_SS_DONE; 2223 oncore_log(instance, LOG_NOTICE, "SSstate = ONCORE_SS_DONE"); 2224 break; 2225 2226 case 2: 2227 case 4: /* Site Survey */ 2228 oncore_log(instance, LOG_NOTICE, "SSstate = ONCORE_SS_TESTING"); 2229 instance->site_survey = ONCORE_SS_TESTING; 2230 instance->count1 = 1; 2231 if (instance->chan == 12) 2232 oncore_sendmsg(instance, oncore_cmd_Gd3, sizeof(oncore_cmd_Gd3)); /* M12+T */ 2233 else 2234 oncore_sendmsg(instance, oncore_cmd_At2, sizeof(oncore_cmd_At2)); /* not GT, arg not VP */ 2235 break; 2236 } 2237 2238 /* Read back PPS Offset for Output */ 2239 /* Nb. This will fail silently for early UT (no plus) and M12 models */ 2240 2241 oncore_sendmsg(instance, oncore_cmd_Ayx, sizeof(oncore_cmd_Ayx)); 2242 2243 /* Read back Cable Delay for Output */ 2244 2245 oncore_sendmsg(instance, oncore_cmd_Azx, sizeof(oncore_cmd_Azx)); 2246 2247 /* Read back Satellite Mask Angle for Output */ 2248 2249 oncore_sendmsg(instance, oncore_cmd_Agx, sizeof(oncore_cmd_Agx)); 2250 } 2251 2252 2253 /* Unfortunately, the Gd3 command returns '3' for the M12 v1.3 firmware where it is 2254 * out-of-range and it should return 0-2. (v1.3 can't do a HW Site Survey) 2255 * We must do the Gd3, and then wait a cycle or two for things to settle, 2256 * then check Ha[130]&0x10 to see if a SS is in progress. 2257 * We will set SW if HW has not been set after an appropriate delay. 2258 */ 2259 2260 if (instance->site_survey == ONCORE_SS_TESTING) { 2261 if (instance->chan == 12) { 2262 if (instance->count1) { 2263 if (instance->count1++ > 5 || instance->BEHa[130]&0x10) { 2264 instance->count1 = 0; 2265 if (instance->BEHa[130]&0x10) { 2266 oncore_log(instance, LOG_NOTICE, 2267 "Initiating hardware 3D site survey"); 2268 2269 oncore_log(instance, LOG_NOTICE, "SSstate = ONCORE_SS_HW"); 2270 instance->site_survey = ONCORE_SS_HW; 2271 } else { 2272 oncore_log(instance, LOG_NOTICE, "SSstate = ONCORE_SS_SW"); 2273 instance->site_survey = ONCORE_SS_SW; 2274 } 2275 } 2276 } 2277 } else { 2278 if (instance->count1) { 2279 if (instance->count1++ > 5) { 2280 instance->count1 = 0; 2281 /* 2282 * For instance->site_survey to still be ONCORE_SS_TESTING, then after a 5sec 2283 * wait after the @@At2/@@Gd3 command we have not changed the state to 2284 * ONCORE_SS_HW. If the Hardware is capable of doing a Site Survey, then 2285 * the variable would have been changed by now. 2286 * There are three possibilities: 2287 * 6/8chan 2288 * (a) We did not get a response to the @@At0 or @@At2 commands, 2289 * and it must be a GT/GT+/SL with no position hold mode. 2290 * We will have to do it ourselves. 2291 * (b) We saw the @@At0, @@At2 commands, but @@At2 failed, 2292 * must be a VP or older UT which doesn't have Site Survey mode. 2293 * We will have to do it ourselves. 2294 * 12chan 2295 * (c) We saw the @@Gd command, and saw H[13]*0x10 2296 * We will have to do it ourselves (done above) 2297 */ 2298 2299 oncore_log_f(instance, LOG_INFO, 2300 "Initiating software 3D site survey (%d samples)", 2301 POS_HOLD_AVERAGE); 2302 2303 oncore_log(instance, LOG_NOTICE, "SSstate = ONCORE_SS_SW"); 2304 instance->site_survey = ONCORE_SS_SW; 2305 2306 instance->ss_lat = instance->ss_long = instance->ss_ht = 0; 2307 if (instance->chan == 12) 2308 oncore_sendmsg(instance, oncore_cmd_Gd0, sizeof(oncore_cmd_Gd0)); /* disable */ 2309 else { 2310 oncore_sendmsg(instance, oncore_cmd_At0, sizeof(oncore_cmd_At0)); /* disable */ 2311 oncore_sendmsg(instance, oncore_cmd_Av0, sizeof(oncore_cmd_Av0)); /* disable */ 2312 } 2313 } 2314 } 2315 } 2316 } 2317 2318 /* check the mode we are in 0/2/3D */ 2319 2320 if (instance->chan == 6) { 2321 if (instance->BEHa[64]&0x8) 2322 instance->mode = MODE_0D; 2323 else if (instance->BEHa[64]&0x10) 2324 instance->mode = MODE_2D; 2325 else if (instance->BEHa[64]&0x20) 2326 instance->mode = MODE_3D; 2327 } else if (instance->chan == 8) { 2328 if (instance->BEHa[72]&0x8) 2329 instance->mode = MODE_0D; 2330 else if (instance->BEHa[72]&0x10) 2331 instance->mode = MODE_2D; 2332 else if (instance->BEHa[72]&0x20) 2333 instance->mode = MODE_3D; 2334 } else if (instance->chan == 12) { 2335 int bits; 2336 2337 bits = (instance->BEHa[129]>>5) & 0x7; /* actually Ha */ 2338 if (bits == 0x4) 2339 instance->mode = MODE_0D; 2340 else if (bits == 0x6) 2341 instance->mode = MODE_2D; 2342 else if (bits == 0x7) 2343 instance->mode = MODE_3D; 2344 } 2345 2346 /* copy the record to the (extra) location in SHMEM */ 2347 2348 if (instance->shmem) { 2349 int i; 2350 u_char *smp; /* pointer to start of shared mem for Ba/Ea/Ha */ 2351 2352 switch(instance->chan) { 2353 case 6: smp = &instance->shmem[instance->shmem_Ba]; break; 2354 case 8: smp = &instance->shmem[instance->shmem_Ea]; break; 2355 case 12: smp = &instance->shmem[instance->shmem_Ha]; break; 2356 default: smp = (u_char *) NULL; break; 2357 } 2358 2359 switch (instance->mode) { 2360 case MODE_0D: i = 1; break; /* 0D, Position Hold */ 2361 case MODE_2D: i = 2; break; /* 2D, Altitude Hold */ 2362 case MODE_3D: i = 3; break; /* 3D fix */ 2363 default: i = 0; break; 2364 } 2365 2366 if (i && smp != NULL) { 2367 i *= (len+6); 2368 smp[i + 2]++; 2369 memcpy(&smp[i+3], buf, (size_t) (len+3)); 2370 } 2371 } 2372 2373 /* 2374 * check if traim timer active 2375 * if it hasn't been cleared, then @@Bn/@@En/@@Hn did not respond 2376 */ 2377 2378 if (instance->traim_delay) { 2379 if (instance->traim_delay++ > 5) { 2380 instance->traim = 0; 2381 instance->traim_delay = 0; 2382 cp = "ONCORE: Did not detect TRAIM response, TRAIM = OFF"; 2383 oncore_log(instance, LOG_INFO, cp); 2384 2385 oncore_set_traim(instance); 2386 } else 2387 return; 2388 2389 } 2390 2391 /* by now should have a @@Ba/@@Ea/@@Ha with good data in it */ 2392 2393 if (!instance->have_dH && !instance->traim_delay) 2394 oncore_compute_dH(instance); 2395 2396 /* 2397 * must be ONCORE_RUN if we are here. 2398 * Have # chan and TRAIM by now. 2399 */ 2400 2401 instance->pp->year = buf[6]*256+buf[7]; 2402 instance->pp->day = ymd2yd(buf[6]*256+buf[7], buf[4], buf[5]); 2403 instance->pp->hour = buf[8]; 2404 instance->pp->minute = buf[9]; 2405 instance->pp->second = buf[10]; 2406 2407 /* 2408 * Are we doing a Hardware or Software Site Survey? 2409 */ 2410 2411 if (instance->site_survey == ONCORE_SS_HW || instance->site_survey == ONCORE_SS_SW) 2412 oncore_ss(instance); 2413 2414 /* see if we ever saw a response from the @@Ayx above */ 2415 2416 if (instance->count2) { 2417 if (instance->count2++ > 5) { /* this delay to check on @@Ay command */ 2418 instance->count2 = 0; 2419 2420 /* Have we seen an Ay (1PPS time offset) command response */ 2421 /* if not, and non-zero offset, zero the offset, and send message */ 2422 2423 if (!instance->saw_Ay && instance->offset) { 2424 oncore_log(instance, LOG_INFO, "No @@Ay command, PPS OFFSET ignored"); 2425 instance->offset = 0; 2426 } 2427 } 2428 } 2429 2430 /* 2431 * Check the leap second status once per day. 2432 */ 2433 2434 oncore_check_leap_sec(instance); 2435 2436 /* 2437 * if SHMEM active, every 15s, steal one 'tick' to get 2D or 3D posn. 2438 */ 2439 2440 if (instance->shmem && !instance->shmem_bad_Ea && instance->shmem_Posn && (instance->site_survey == ONCORE_SS_DONE)) 2441 oncore_shmem_get_3D(instance); 2442 2443 if (!instance->traim) /* NO traim, no BnEnHn, go get tick */ 2444 oncore_get_timestamp(instance, instance->offset, instance->offset); 2445} 2446 2447 2448 2449/* Almanac Status */ 2450 2451static void 2452oncore_msg_Bd( 2453 struct instance *instance, 2454 u_char *buf, 2455 size_t len 2456 ) 2457{ 2458 oncore_log_f(instance, LOG_NOTICE, 2459 "Bd: Almanac %s, week = %d, t = %d, %d SVs: %x", 2460 ((buf[4]) ? "LOADED" : "(NONE)"), buf[5], buf[6], 2461 buf[7], w32(&buf[8])); 2462} 2463 2464 2465 2466/* get leap-second warning message */ 2467 2468/* 2469 * @@Bj does NOT behave as documented in current Oncore firmware. 2470 * It turns on the LEAP indicator when the data is set, and does not, 2471 * as documented, wait until the beginning of the month when the 2472 * leap second will occur. 2473 * Since this firmware bug will never be fixed in all the outstanding Oncore receivers 2474 * @@Bj is only called in June/December. 2475 */ 2476 2477static void 2478oncore_msg_Bj( 2479 struct instance *instance, 2480 u_char *buf, 2481 size_t len 2482 ) 2483{ 2484 const char *cp; 2485 2486 instance->saw_Bj = 1; 2487 2488 switch(buf[4]) { 2489 case 1: 2490 instance->pp->leap = LEAP_ADDSECOND; 2491 cp = "Set pp.leap to LEAP_ADDSECOND"; 2492 break; 2493 case 2: 2494 instance->pp->leap = LEAP_DELSECOND; 2495 cp = "Set pp.leap to LEAP_DELSECOND"; 2496 break; 2497 case 0: 2498 default: 2499 instance->pp->leap = LEAP_NOWARNING; 2500 cp = "Set pp.leap to LEAP_NOWARNING"; 2501 break; 2502 } 2503 oncore_log(instance, LOG_NOTICE, cp); 2504} 2505 2506 2507 2508static void 2509oncore_msg_Bl( 2510 struct instance *instance, 2511 u_char *buf, 2512 size_t len 2513 ) 2514{ 2515 int subframe, valid, page, i, j, tow; 2516 int day_now, day_lsf; 2517 const char *cp; 2518 enum { 2519 WARN_NOT_YET, 2520 WARN_0, 2521 WARN_PLUS, 2522 WARN_MINUS 2523 } warn; 2524 2525 2526 subframe = buf[6] & 017; 2527 valid = (buf[6] >> 4) & 017; 2528 page = buf[7]; 2529 2530 if ((!instance->Bl.lsf_flg && !instance->Bl.wn_flg) && (subframe == 4 && page == 18 && valid == 10)) { 2531 instance->Bl.dt_ls = buf[32]; 2532 instance->Bl.WN_lsf = buf[33]; 2533 instance->Bl.DN_lsf = buf[34]; 2534 instance->Bl.dt_lsf = buf[35]; 2535 instance->Bl.lsf_flg++; 2536 } 2537 if ((instance->Bl.lsf_flg && !instance->Bl.wn_flg) && (subframe == 1 && valid == 10)) { 2538 i = (buf[7+7]<<8) + buf[7+8]; 2539 instance->Bl.WN = i >> 6; 2540 tow = (buf[7+4]<<16) + (buf[7+5]<<8) + buf[7+6]; 2541 tow >>= 7; 2542 tow = tow & 0377777; 2543 tow <<= 2; 2544 instance->Bl.DN = tow/57600L + 1; 2545 instance->Bl.wn_flg++; 2546 } 2547 if (instance->Bl.wn_flg && instance->Bl.lsf_flg) { 2548 instance->Bl.wn_flg = instance->Bl.lsf_flg = 0; 2549 oncore_cmd_Bl[2] = 0; 2550 oncore_sendmsg(instance, oncore_cmd_Bl, sizeof oncore_cmd_Bl); 2551 oncore_cmd_Bl[2] = 1; 2552 2553 i = instance->Bl.WN&01400; 2554 instance->Bl.WN_lsf |= i; 2555 2556 /* have everything I need, doit */ 2557 2558 i = (instance->Bl.WN_lsf - instance->Bl.WN); 2559 if (i < 0) 2560 i += 1024; 2561 day_now = instance->Bl.DN; 2562 day_lsf = 7*i + instance->Bl.DN_lsf; 2563 2564 /* ignore if in past or more than a month in future */ 2565 2566 warn = WARN_NOT_YET; 2567 if (day_lsf >= day_now && day_lsf - day_now < 32) { 2568 /* if < 28d, doit, if 28-31, ck day-of-month < 20 (not at end of prev month) */ 2569 if (day_lsf - day_now < 28 || instance->BEHa[5] < 20) { 2570 i = instance->Bl.dt_lsf - instance->Bl.dt_ls; 2571 switch (i) { 2572 case -1: 2573 warn = WARN_MINUS; 2574 break; 2575 case 0: 2576 warn = WARN_0; 2577 break; 2578 case 1: 2579 warn = WARN_PLUS; 2580 break; 2581 } 2582 } 2583 } 2584 2585 switch (warn) { 2586 case WARN_0: 2587 case WARN_NOT_YET: 2588 instance->peer->leap = LEAP_NOWARNING; 2589 cp = "Set peer.leap to LEAP_NOWARNING"; 2590 break; 2591 case WARN_MINUS: 2592 instance->peer->leap = LEAP_DELSECOND; 2593 cp = "Set peer.leap to LEAP_DELSECOND"; 2594 break; 2595 case WARN_PLUS: 2596 instance->peer->leap = LEAP_ADDSECOND; 2597 cp = "Set peer.leap to LEAP_ADDSECOND"; 2598 break; 2599 default: 2600 cp = NULL; 2601 break; 2602 } 2603 oncore_log(instance, LOG_NOTICE, cp); 2604 2605 i = instance->Bl.dt_lsf-instance->Bl.dt_ls; 2606 if (i) { 2607 j = (i >= 0) ? i : -i; /* abs(i) */ 2608 oncore_log_f(instance, LOG_NOTICE, 2609 "see Leap_Second (%c%d) in %d days", 2610 ((i >= 0) ? '+' : '-'), j, 2611 day_lsf-day_now); 2612 } 2613 } 2614 2615/* 2616 * Reg only wants the following output for "deeper" driver debugging. 2617 * See Bug 2142 and Bug 1866 2618 */ 2619#if 0 2620 oncore_log_f(instance, LOG_DEBUG, 2621 "dt_ls = %d dt_lsf = %d WN = %d DN = %d WN_lsf = %d DNlsf = %d wn_flg = %d lsf_flg = %d Bl_day = %d", 2622 instance->Bl.dt_ls, instance->Bl.dt_lsf, 2623 instance->Bl.WN, instance->Bl.DN, 2624 instance->Bl.WN_lsf, instance->Bl.DN_lsf, 2625 instance->Bl.wn_flg, instance->Bl.lsf_flg, 2626 instance->Bl.Bl_day); 2627#endif 2628} 2629 2630 2631static void 2632oncore_msg_BnEnHn( 2633 struct instance *instance, 2634 u_char *buf, 2635 size_t len 2636 ) 2637{ 2638 long dt1, dt2; 2639 2640 if (instance->o_state != ONCORE_RUN) 2641 return; 2642 2643 if (instance->traim_delay) { /* flag that @@Bn/@@En/Hn returned */ 2644 instance->traim_ck = 1; 2645 instance->traim_delay = 0; 2646 oncore_log(instance, LOG_NOTICE, "ONCORE: Detected TRAIM, TRAIM = ON"); 2647 2648 oncore_set_traim(instance); 2649 } 2650 2651 memcpy(instance->BEHn, buf, (size_t) len); /* Bn or En or Hn */ 2652 2653 if (!instance->traim) /* BnEnHn will be turned off in any case */ 2654 return; 2655 2656 /* If Time RAIM doesn't like it, don't trust it */ 2657 2658 if (buf[2] == 'H') { 2659 if (instance->BEHn[6]) { /* bad TRAIM */ 2660 oncore_log(instance, LOG_WARNING, "BAD TRAIM"); 2661 return; 2662 } 2663 2664 dt1 = instance->saw_tooth + instance->offset; /* dt this time step */ 2665 instance->saw_tooth = (s_char) instance->BEHn[14]; /* update for next time Hn[14] */ 2666 dt2 = instance->saw_tooth + instance->offset; /* dt next time step */ 2667 } else { 2668 if (instance->BEHn[21]) /* bad TRAIM */ 2669 return; 2670 2671 dt1 = instance->saw_tooth + instance->offset; /* dt this time step */ 2672 instance->saw_tooth = (s_char) instance->BEHn[25]; /* update for next time Bn[25], En[25] */ 2673 dt2 = instance->saw_tooth + instance->offset; /* dt next time step */ 2674 } 2675 2676 oncore_get_timestamp(instance, dt1, dt2); 2677} 2678 2679 2680 2681/* Here for @@Ca, @@Fa and @@Ia messages */ 2682 2683/* These are Self test Commands for 6, 8, and 12 chan receivers. 2684 * There are good reasons NOT to do a @@Ca, @@Fa or @@Ia command with the ONCORE. 2685 * It was found that under some circumstances the following 2686 * command would fail if issued immediately after the return from the 2687 * @@Fa, but a 2sec delay seemed to fix things. Since simply calling 2688 * sleep(2) is wasteful, and may cause trouble for some OS's, repeating 2689 * itimer, we set a flag, and test it at the next POLL. If it hasn't 2690 * been cleared, we reissue the @@Cj that is issued below. 2691 * Note that we do a @@Cj at the beginning, and again here. 2692 * The first is to get the info, the 2nd is just used as a safe command 2693 * after the @@Fa for all Oncores (and it was in this posn in the 2694 * original code). 2695 */ 2696 2697static void 2698oncore_msg_CaFaIa( 2699 struct instance *instance, 2700 u_char *buf, 2701 size_t len 2702 ) 2703{ 2704 int i; 2705 2706 if (instance->o_state == ONCORE_TEST_SENT) { 2707 enum antenna_state antenna; 2708 2709 instance->timeout = 0; 2710 2711#if ONCORE_VERBOSE_SELF_TEST 2712 if (debug > 2) { 2713 if (buf[2] == 'I') 2714 oncore_log_f(instance, LOG_DEBUG, 2715 ">>@@%ca %x %x %x", buf[2], 2716 buf[4], buf[5], buf[6]); 2717 else 2718 oncore_log_f(instance, LOG_DEBUG, 2719 ">>@@%ca %x %x", buf[2], 2720 buf[4], buf[5]); 2721 } 2722#endif 2723 2724 antenna = (buf[4] & 0xc0) >> 6; 2725 buf[4] &= ~0xc0; 2726 2727 i = buf[4] || buf[5]; 2728 if (buf[2] == 'I') i = i || buf[6]; 2729 if (i) { 2730 if (buf[2] == 'I') 2731 oncore_log_f(instance, LOG_ERR, 2732 "self test failed: result %02x %02x %02x", 2733 buf[4], buf[5], buf[6]); 2734 else 2735 oncore_log_f(instance, LOG_ERR, 2736 "self test failed: result %02x %02x", 2737 buf[4], buf[5]); 2738 2739 oncore_log(instance, LOG_ERR, 2740 "ONCORE: self test failed, shutting down driver"); 2741 2742 refclock_report(instance->peer, CEVNT_FAULT); 2743 oncore_shutdown(instance->unit, instance->peer); 2744 return; 2745 } 2746 2747 /* report the current antenna state */ 2748 2749 oncore_antenna_report(instance, antenna); 2750 2751 instance->o_state = ONCORE_INIT; 2752 oncore_log(instance, LOG_NOTICE, "state = ONCORE_INIT"); 2753 2754 instance->timeout = 4; 2755 oncore_sendmsg(instance, oncore_cmd_Cj, sizeof(oncore_cmd_Cj)); 2756 } 2757} 2758 2759 2760 2761/* 2762 * Demultiplex the almanac into shmem 2763 */ 2764 2765static void 2766oncore_msg_Cb( 2767 struct instance *instance, 2768 u_char *buf, 2769 size_t len 2770 ) 2771{ 2772 int i; 2773 2774 if (instance->shmem == NULL) 2775 return; 2776 2777 if (buf[4] == 5 && buf[5] > 0 && buf[5] < 26) 2778 i = buf[5]; 2779 else if (buf[4] == 4 && buf[5] <= 5) 2780 i = buf[5] + 24; 2781 else if (buf[4] == 4 && buf[5] <= 10) 2782 i = buf[5] + 23; 2783 else if (buf[4] == 4 && buf[5] == 25) 2784 i = 34; 2785 else { 2786 oncore_log(instance, LOG_NOTICE, "Cb: Response is NO ALMANAC"); 2787 return; 2788 } 2789 2790 i *= 36; 2791 instance->shmem[instance->shmem_Cb + i + 2]++; 2792 memcpy(instance->shmem + instance->shmem_Cb + i + 3, buf, (size_t) (len + 3)); 2793 2794#ifdef ONCORE_VERBOSE_MSG_CB 2795 oncore_log_f(instance, LOG_DEBUG, "See Cb [%d,%d]", buf[4], 2796 buf[5]); 2797#endif 2798} 2799 2800 2801 2802/* 2803 * Set to Factory Defaults (Reasonable for UT w/ no Battery Backup 2804 * not so for VP (eeprom) or any unit with a battery 2805 */ 2806 2807static void 2808oncore_msg_Cf( 2809 struct instance *instance, 2810 u_char *buf, 2811 size_t len 2812 ) 2813{ 2814 if (instance->o_state == ONCORE_RESET_SENT) { 2815 oncore_sendmsg(instance, oncore_cmd_Cg, sizeof(oncore_cmd_Cg)); /* Return to Posn Fix mode */ 2816 /* Reset set VP to IDLE */ 2817 instance->o_state = ONCORE_TEST_SENT; 2818 oncore_log(instance, LOG_NOTICE, "state = ONCORE_TEST_SENT"); 2819 2820 oncore_sendmsg(instance, oncore_cmd_Cj, sizeof(oncore_cmd_Cj)); 2821 } 2822} 2823 2824 2825 2826/* 2827 * This is the Grand Central Station for the Preliminary Initialization. 2828 * Once done here we move on to oncore_msg_BaEaHa for final Initialization and Running. 2829 * 2830 * We do an @@Cj whenever we need a safe command for all Oncores. 2831 * The @@Cj gets us back here where we can switch to the next phase of setup. 2832 * 2833 * o Once at the very beginning (in start) to get the Model number. 2834 * This info is printed, but no longer used. 2835 * o Again after we have determined the number of Channels in the receiver. 2836 * o And once later after we have done a reset and test, (which may hang), 2837 * as we are about to initialize the Oncore and start it running. 2838 * o We have one routine below for each case. 2839 */ 2840 2841static void 2842oncore_msg_Cj( 2843 struct instance *instance, 2844 u_char *buf, 2845 size_t len 2846 ) 2847{ 2848 int mode; 2849 2850 memcpy(instance->Cj, buf, len); 2851 2852 instance->timeout = 0; 2853 if (instance->o_state == ONCORE_CHECK_ID) { 2854 oncore_msg_Cj_id(instance, buf, len); 2855 oncore_chan_test(instance); 2856 } else if (instance->o_state == ONCORE_HAVE_CHAN) { 2857 mode = instance->init_type; 2858 if (mode == 3 || mode == 4) { /* Cf will return here to check for TEST */ 2859 instance->o_state = ONCORE_RESET_SENT; 2860 oncore_log(instance, LOG_NOTICE, "state = ONCORE_RESET_SENT"); 2861 oncore_sendmsg(instance, oncore_cmd_Cf, sizeof(oncore_cmd_Cf)); 2862 } else { 2863 instance->o_state = ONCORE_TEST_SENT; 2864 oncore_log(instance, LOG_NOTICE, "state = ONCORE_TEST_SENT"); 2865 } 2866 } 2867 2868 if (instance->o_state == ONCORE_TEST_SENT) { 2869 if (instance->chan == 6) 2870 oncore_sendmsg(instance, oncore_cmd_Ca, sizeof(oncore_cmd_Ca)); 2871 else if (instance->chan == 8) 2872 oncore_sendmsg(instance, oncore_cmd_Fa, sizeof(oncore_cmd_Fa)); 2873 else if (instance->chan == 12) 2874 oncore_sendmsg(instance, oncore_cmd_Ia, sizeof(oncore_cmd_Ia)); 2875 } else if (instance->o_state == ONCORE_INIT) 2876 oncore_msg_Cj_init(instance, buf, len); 2877} 2878 2879 2880 2881/* The information on determining a Oncore 'Model', viz VP, UT, etc, from 2882 * the Model Number comes from "Richard M. Hambly" <rick@cnssys.com> 2883 * and from Motorola. Until recently Rick was the only source of 2884 * this information as Motorola didn't give the information out. 2885 * 2886 * Determine the Type from the Model #, this determines #chan and if TRAIM is 2887 * available. 2888 * 2889 * The Information from this routine is NO LONGER USED. 2890 * The RESULTS are PRINTED, BUT NOT USED, and the routine COULD BE DELETED 2891 */ 2892 2893static void 2894oncore_msg_Cj_id( 2895 struct instance *instance, 2896 u_char *buf, 2897 size_t len 2898 ) 2899{ 2900 char *cp2, Model[21]; 2901 const char *cp, *cp1; 2902 2903 /* Write Receiver ID message to clockstats file */ 2904 2905 instance->Cj[294] = '\0'; 2906 for (cp= (char *)instance->Cj; cp< (char *) &instance->Cj[294]; ) { 2907 char *cpw = strchr(cp, '\r'); 2908 if (!cpw) 2909 cpw = (char *)&instance->Cj[294]; 2910 *cpw = '\0'; 2911 oncore_log(instance, LOG_NOTICE, cp); 2912 *cpw = '\r'; 2913 cp = cpw+2; 2914 } 2915 2916 /* next, the Firmware Version and Revision numbers */ 2917 2918 instance->version = atoi((char *) &instance->Cj[83]); 2919 instance->revision = atoi((char *) &instance->Cj[111]); 2920 2921 /* from model number decide which Oncore this is, 2922 and then the number of channels */ 2923 2924 for (cp= (char *) &instance->Cj[160]; *cp == ' '; cp++) /* start right after 'Model #' */ 2925 ; 2926 cp1 = cp; 2927 cp2 = Model; 2928 for (; !isspace((unsigned char)*cp) && cp-cp1 < 20; cp++, cp2++) 2929 *cp2 = *cp; 2930 *cp2 = '\0'; 2931 2932 cp = 0; 2933 if (!strncmp(Model, "PVT6", (size_t) 4)) { 2934 cp = "PVT6"; 2935 instance->model = ONCORE_PVT6; 2936 } else if (Model[0] == 'A') { 2937 cp = "Basic"; 2938 instance->model = ONCORE_BASIC; 2939 } else if (Model[0] == 'B' || !strncmp(Model, "T8", (size_t) 2)) { 2940 cp = "VP"; 2941 instance->model = ONCORE_VP; 2942 } else if (Model[0] == 'P') { 2943 cp = "M12"; 2944 instance->model = ONCORE_M12; 2945 } else if (Model[0] == 'R' || Model[0] == 'D' || Model[0] == 'S') { 2946 if (Model[5] == 'N') { 2947 cp = "GT"; 2948 instance->model = ONCORE_GT; 2949 } else if ((Model[1] == '3' || Model[1] == '4') && Model[5] == 'G') { 2950 cp = "GT+"; 2951 instance->model = ONCORE_GTPLUS; 2952 } else if ((Model[1] == '5' && Model[5] == 'U') || (Model[1] == '1' && Model[5] == 'A')) { 2953 cp = "UT"; 2954 instance->model = ONCORE_UT; 2955 } else if (Model[1] == '5' && Model[5] == 'G') { 2956 cp = "UT+"; 2957 instance->model = ONCORE_UTPLUS; 2958 } else if (Model[1] == '6' && Model[5] == 'G') { 2959 cp = "SL"; 2960 instance->model = ONCORE_SL; 2961 } else { 2962 cp = "Unknown"; 2963 instance->model = ONCORE_UNKNOWN; 2964 } 2965 } else { 2966 cp = "Unknown"; 2967 instance->model = ONCORE_UNKNOWN; 2968 } 2969 2970 /* use MODEL to set CHAN and TRAIM and possibly zero SHMEM */ 2971 2972 oncore_log_f(instance, LOG_INFO, 2973 "This looks like an Oncore %s with version %d.%d firmware.", 2974 cp, instance->version, instance->revision); 2975 2976 instance->chan_id = 8; /* default */ 2977 if (instance->model == ONCORE_BASIC || instance->model == ONCORE_PVT6) 2978 instance->chan_id = 6; 2979 else if (instance->model == ONCORE_VP || instance->model == ONCORE_UT || instance->model == ONCORE_UTPLUS) 2980 instance->chan_id = 8; 2981 else if (instance->model == ONCORE_M12) 2982 instance->chan_id = 12; 2983 2984 instance->traim_id = 0; /* default */ 2985 if (instance->model == ONCORE_BASIC || instance->model == ONCORE_PVT6) 2986 instance->traim_id = 0; 2987 else if (instance->model == ONCORE_VP || instance->model == ONCORE_UT || instance->model == ONCORE_UTPLUS) 2988 instance->traim_id = 1; 2989 else if (instance->model == ONCORE_M12) 2990 instance->traim_id = -1; 2991 2992 oncore_log_f(instance, LOG_INFO, "Channels = %d, TRAIM = %s", 2993 instance->chan_id, 2994 ((instance->traim_id < 0) 2995 ? "UNKNOWN" 2996 : (instance->traim_id > 0) 2997 ? "ON" 2998 : "OFF")); 2999} 3000 3001 3002 3003/* OK, know type of Oncore, have possibly reset it, and have tested it. 3004 * We know the number of channels. 3005 * We will determine whether we have TRAIM before we actually start. 3006 * Now initialize. 3007 */ 3008 3009static void 3010oncore_msg_Cj_init( 3011 struct instance *instance, 3012 u_char *buf, 3013 size_t len 3014 ) 3015{ 3016 u_char Cmd[20]; 3017 int mode; 3018 3019 3020 /* The M12 with 1.3 or 2.0 Firmware, loses track of all Satellites and has to 3021 * start again if we go from 0D -> 3D, then loses them again when we 3022 * go from 3D -> 0D. We do this to get a @@Ea message for SHMEM. 3023 * For NOW we will turn this aspect of filling SHMEM off for the M12 3024 */ 3025 3026 if (instance->chan == 12) { 3027 instance->shmem_bad_Ea = 1; 3028 oncore_log_f(instance, LOG_NOTICE, 3029 "*** SHMEM partially enabled for ONCORE M12 s/w v%d.%d ***", 3030 instance->version, instance->revision); 3031 } 3032 3033 oncore_sendmsg(instance, oncore_cmd_Cg, sizeof(oncore_cmd_Cg)); /* Return to Posn Fix mode */ 3034 oncore_sendmsg(instance, oncore_cmd_Bb, sizeof(oncore_cmd_Bb)); /* turn on for shmem (6/8/12) */ 3035 oncore_sendmsg(instance, oncore_cmd_Ek, sizeof(oncore_cmd_Ek)); /* turn off (VP) */ 3036 oncore_sendmsg(instance, oncore_cmd_Aw, sizeof(oncore_cmd_Aw)); /* UTC time (6/8/12) */ 3037 oncore_sendmsg(instance, oncore_cmd_AB, sizeof(oncore_cmd_AB)); /* Appl type static (VP) */ 3038 oncore_sendmsg(instance, oncore_cmd_Be, sizeof(oncore_cmd_Be)); /* Tell us the Almanac for shmem (6/8/12) */ 3039 oncore_sendmsg(instance, oncore_cmd_Bd, sizeof(oncore_cmd_Bd)); /* Tell us when Almanac changes */ 3040 3041 mode = instance->init_type; 3042 3043 /* If there is Position input in the Config file 3044 * and mode = (1,3) set it as posn hold posn, goto 0D mode. 3045 * or mode = (2,4) set it as INITIAL position, and do Site Survey. 3046 */ 3047 3048 if (instance->posn_set) { 3049 oncore_log(instance, LOG_INFO, "Setting Posn from input data"); 3050 oncore_set_posn(instance); /* this should print posn indirectly thru the As cmd */ 3051 } else /* must issue an @@At here to check on 6/8 Position Hold, set_posn would have */ 3052 if (instance->chan != 12) 3053 oncore_sendmsg(instance, oncore_cmd_Atx, sizeof(oncore_cmd_Atx)); 3054 3055 if (mode != 0) { 3056 /* cable delay in ns */ 3057 memcpy(Cmd, oncore_cmd_Az, (size_t) sizeof(oncore_cmd_Az)); 3058 w32_buf(&Cmd[-2+4], (int)instance->delay); 3059 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Az)); /* 6,8,12 */ 3060 3061 /* PPS offset in ns */ 3062 memcpy(Cmd, oncore_cmd_Ay, (size_t) sizeof(oncore_cmd_Ay)); /* some have it, some don't */ 3063 w32_buf(&Cmd[-2+4], instance->offset); /* will check for hw response */ 3064 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Ay)); 3065 3066 /* Satellite mask angle */ 3067 3068 if (instance->Ag != 0xff) { /* will have 0xff in it if not set by user */ 3069 memcpy(Cmd, oncore_cmd_Ag, (size_t) sizeof(oncore_cmd_Ag)); 3070 Cmd[-2+4] = instance->Ag; 3071 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Ag)); 3072 } 3073 } 3074 3075 /* 6, 8 12 chan - Position/Status/Data Output Message, 1/s 3076 * now we're really running 3077 * these were ALL started in the chan test, 3078 * However, if we had mode=3,4 then commands got turned off, so we turn 3079 * them on again here just in case 3080 */ 3081 3082 if (instance->chan == 6) { /* start 6chan, kill 8,12chan commands, possibly testing VP in 6chan mode */ 3083 oncore_sendmsg(instance, oncore_cmd_Ea0, sizeof(oncore_cmd_Ea0)); 3084 oncore_sendmsg(instance, oncore_cmd_En0, sizeof(oncore_cmd_En0)); 3085 oncore_sendmsg(instance, oncore_cmd_Ha0, sizeof(oncore_cmd_Ha0)); 3086 oncore_sendmsg(instance, oncore_cmd_Hn0, sizeof(oncore_cmd_Hn0)); 3087 oncore_sendmsg(instance, oncore_cmd_Ba, sizeof(oncore_cmd_Ba )); 3088 } else if (instance->chan == 8) { /* start 8chan, kill 6,12chan commands */ 3089 oncore_sendmsg(instance, oncore_cmd_Ba0, sizeof(oncore_cmd_Ba0)); 3090 oncore_sendmsg(instance, oncore_cmd_Bn0, sizeof(oncore_cmd_Bn0)); 3091 oncore_sendmsg(instance, oncore_cmd_Ha0, sizeof(oncore_cmd_Ha0)); 3092 oncore_sendmsg(instance, oncore_cmd_Hn0, sizeof(oncore_cmd_Hn0)); 3093 oncore_sendmsg(instance, oncore_cmd_Ea, sizeof(oncore_cmd_Ea )); 3094 } else if (instance->chan == 12){ /* start 12chan, kill 6,12chan commands */ 3095 oncore_sendmsg(instance, oncore_cmd_Ba0, sizeof(oncore_cmd_Ba0)); 3096 oncore_sendmsg(instance, oncore_cmd_Bn0, sizeof(oncore_cmd_Bn0)); 3097 oncore_sendmsg(instance, oncore_cmd_Ea0, sizeof(oncore_cmd_Ea0)); 3098 oncore_sendmsg(instance, oncore_cmd_En0, sizeof(oncore_cmd_En0)); 3099 oncore_sendmsg(instance, oncore_cmd_Ha, sizeof(oncore_cmd_Ha )); 3100 oncore_cmd_Gc[2] = (instance->pps_control < 0) ? 1 : instance->pps_control; 3101 oncore_sendmsg(instance, oncore_cmd_Gc, sizeof(oncore_cmd_Gc)); /* PPS off/continuous/Tracking 1+sat/TRAIM */ 3102 } 3103 3104 instance->count = 1; 3105 instance->o_state = ONCORE_ALMANAC; 3106 oncore_log(instance, LOG_NOTICE, "state = ONCORE_ALMANAC"); 3107} 3108 3109 3110 3111/* 12chan position */ 3112 3113static void 3114oncore_msg_Ga( 3115 struct instance *instance, 3116 u_char *buf, 3117 size_t len 3118 ) 3119{ 3120 long lat, lon, ht; 3121 double Lat, Lon, Ht; 3122 3123 3124 lat = buf_w32(&buf[4]); 3125 lon = buf_w32(&buf[8]); 3126 ht = buf_w32(&buf[12]); /* GPS ellipsoid */ 3127 3128 Lat = lat; 3129 Lon = lon; 3130 Ht = ht; 3131 3132 Lat /= 3600000; 3133 Lon /= 3600000; 3134 Ht /= 100; 3135 3136 oncore_log_f(instance, LOG_NOTICE, 3137 "Ga Posn Lat = %.7f, Lon = %.7f, Ht = %.2f", Lat, 3138 Lon, Ht); 3139 3140 instance->ss_lat = lat; 3141 instance->ss_long = lon; 3142 instance->ss_ht = ht; 3143 3144 oncore_print_posn(instance); 3145} 3146 3147 3148 3149/* 12 chan time/date */ 3150 3151static void 3152oncore_msg_Gb( 3153 struct instance *instance, 3154 u_char *buf, 3155 size_t len 3156 ) 3157{ 3158 const char * gmts; 3159 int mo, d, y, h, m, s, gmth, gmtm; 3160 3161 mo = buf[4]; 3162 d = buf[5]; 3163 y = 256*buf[6]+buf[7]; 3164 3165 h = buf[8]; 3166 m = buf[9]; 3167 s = buf[10]; 3168 3169 gmts = ((buf[11] == 0) ? "+" : "-"); 3170 gmth = buf[12]; 3171 gmtm = buf[13]; 3172 3173 oncore_log_f(instance, LOG_NOTICE, 3174 "Date/Time set to: %d%s%d %2d:%02d:%02d GMT (GMT offset is %s%02d:%02d)", 3175 d, months[mo-1], y, h, m, s, gmts, gmth, gmtm); 3176} 3177 3178 3179 3180/* Response to PPS Control message (M12 and M12+T only ) */ 3181 3182static void 3183oncore_msg_Gc( 3184 struct instance *instance, 3185 u_char *buf, 3186 size_t len 3187 ) 3188{ 3189 const char *tbl[] = {"OFF", "ON", "SATELLITE", "TRAIM" }; 3190 3191 instance->pps_control_msg_seen = 1; 3192 oncore_log_f(instance, LOG_INFO, "PPS Control set to %s", 3193 tbl[buf[4]]); 3194} 3195 3196 3197 3198/* Leap Second for M12, gives all info from satellite message */ 3199/* also in UT v3.0 */ 3200 3201static void 3202oncore_msg_Gj( 3203 struct instance *instance, 3204 u_char *buf, 3205 size_t len 3206 ) 3207{ 3208 static const char * insrem[2] = { 3209 "removed", 3210 "inserted" 3211 }; 3212 3213 int dt; 3214 const char *cp; 3215 3216 instance->saw_Gj = 1; /* flag, saw_Gj, dont need to try Bj in check_leap */ 3217 3218 /* print the message to verify whats there */ 3219 3220 dt = buf[5] - buf[4]; 3221 3222 oncore_log_f(instance, LOG_INFO, 3223 "Leap Sec Msg: %d %d %d %d %d %d %d %d %d %d", 3224 buf[4], buf[5], 256 * buf[6] + buf[7], buf[8], 3225 buf[9], buf[10], 3226 (buf[14] + 256 * 3227 (buf[13] + 256 * (buf[12] + 256 * buf[11]))), 3228 buf[15], buf[16], buf[17]); 3229 3230 /* There seems to be eternal confusion about when a leap second 3231 * takes place. It's the second *before* the new TAI offset 3232 * becomes effective. But since the ONCORE receiver tells us 3233 * just that, we would have to do some time/date calculations to 3234 * get the actual leap second -- that is, the one that is 3235 * deleted or inserted. 3236 * 3237 * Going through all this for a simple log is probably overkill, 3238 * so for fixing bug#1050 the message output is changed to 3239 * reflect the fact that it tells the second after the leap 3240 * second. 3241 */ 3242 if (dt) 3243 oncore_log_f(instance, LOG_NOTICE, 3244 "Leap second %s (%d) before %04u-%02u-%02u/%02u:%02u:%02u", 3245 insrem[(dt > 0)], dt, 3246 256u * buf[6] + buf[7], buf[8], buf[9], 3247 buf[15], buf[16], buf[17]); 3248 3249 /* Only raise warning within a month of the leap second */ 3250 3251 instance->pp->leap = LEAP_NOWARNING; 3252 cp = "Set pp.leap to LEAP_NOWARNING"; 3253 3254 if (buf[6] == instance->BEHa[6] && buf[7] == instance->BEHa[7] && /* year */ 3255 buf[8] == instance->BEHa[4]) { /* month */ 3256 if (dt) { 3257 if (dt < 0) { 3258 instance->pp->leap = LEAP_DELSECOND; 3259 cp = "Set pp.leap to LEAP_DELSECOND"; 3260 } else { 3261 instance->pp->leap = LEAP_ADDSECOND; 3262 cp = "Set pp.leap to LEAP_ADDSECOND"; 3263 } 3264 } 3265 } 3266 oncore_log(instance, LOG_INFO, cp); 3267} 3268 3269 3270 3271/* Power on failure */ 3272 3273static void 3274oncore_msg_Sz( 3275 struct instance *instance, 3276 u_char *buf, 3277 size_t len 3278 ) 3279{ 3280 if (instance && instance->peer) { 3281 oncore_log(instance, LOG_ERR, "Oncore: System Failure at Power On"); 3282 oncore_shutdown(instance->unit, instance->peer); 3283 } 3284} 3285 3286/************** Small Subroutines ***************/ 3287 3288 3289static void 3290oncore_antenna_report( 3291 struct instance *instance, 3292 enum antenna_state new_state) 3293{ 3294 const char *cp; 3295 3296 if (instance->ant_state == new_state) 3297 return; 3298 3299 switch (new_state) { 3300 case ONCORE_ANTENNA_OK: cp = "GPS antenna: OK"; break; 3301 case ONCORE_ANTENNA_OC: cp = "GPS antenna: short (overcurrent)"; break; 3302 case ONCORE_ANTENNA_UC: cp = "GPS antenna: open (not connected)"; break; 3303 case ONCORE_ANTENNA_NV: cp = "GPS antenna: short (no voltage)"; break; 3304 default: cp = "GPS antenna: ?"; break; 3305 } 3306 3307 instance->ant_state = new_state; 3308 oncore_log(instance, LOG_NOTICE, cp); 3309} 3310 3311 3312 3313static void 3314oncore_chan_test( 3315 struct instance *instance 3316 ) 3317{ 3318 /* subroutine oncore_Cj_id has determined the number of channels from the 3319 * model number of the attached oncore. This is not always correct since 3320 * the oncore could have non-standard firmware. Here we check (independently) by 3321 * trying a 6, 8, and 12 chan command, and see which responds. 3322 * Caution: more than one CAN respond. 3323 * 3324 * This #chan is used by the code rather than that calculated from the model number. 3325 */ 3326 3327 instance->o_state = ONCORE_CHECK_CHAN; 3328 oncore_log(instance, LOG_NOTICE, "state = ONCORE_CHECK_CHAN"); 3329 3330 instance->count3 = 1; 3331 oncore_sendmsg(instance, oncore_cmd_Ba, sizeof(oncore_cmd_Ba)); 3332 oncore_sendmsg(instance, oncore_cmd_Ea, sizeof(oncore_cmd_Ea)); 3333 oncore_sendmsg(instance, oncore_cmd_Ha, sizeof(oncore_cmd_Ha)); 3334} 3335 3336 3337 3338/* check for a GOOD Almanac, have we got one yet? */ 3339 3340static void 3341oncore_check_almanac( 3342 struct instance *instance 3343 ) 3344{ 3345 if (instance->chan == 6) { 3346 instance->rsm.bad_almanac = instance->BEHa[64]&0x1; 3347 instance->rsm.bad_fix = instance->BEHa[64]&0x52; 3348 } else if (instance->chan == 8) { 3349 instance->rsm.bad_almanac = instance->BEHa[72]&0x1; 3350 instance->rsm.bad_fix = instance->BEHa[72]&0x52; 3351 } else if (instance->chan == 12) { 3352 int bits1, bits2, bits3; 3353 3354 bits1 = (instance->BEHa[129]>>5) & 0x7; /* actually Ha */ 3355 bits2 = instance->BEHa[130]; 3356 instance->rsm.bad_almanac = (bits2 & 0x80); 3357 instance->rsm.bad_fix = (bits2 & 0x8) || (bits1 == 0x2); 3358 /* too few sat Bad Geom */ 3359 3360 bits3 = instance->BEHa[141]; /* UTC parameters */ 3361 if (!instance->count5_set && (bits3 & 0xC0)) { 3362 instance->count5 = 4; /* was 2 [Bug 1766] */ 3363 instance->count5_set = 1; 3364 } 3365#ifdef ONCORE_VERBOSE_CHECK_ALMANAC 3366 oncore_log_f(instance, LOG_DEBUG, 3367 "DEBUG BITS: (%x %x), (%x %x %x), %x %x %x %x %x", 3368 instance->BEHa[129], instance->BEHa[130], 3369 bits1, bits2, bits3, 3370 instance->mode == MODE_0D, 3371 instance->mode == MODE_2D, 3372 instance->mode == MODE_3D, 3373 instance->rsm.bad_almanac, 3374 instance->rsm.bad_fix); 3375 } 3376#endif 3377 } 3378} 3379 3380 3381 3382/* check the antenna for changes (did it get unplugged?) */ 3383 3384static void 3385oncore_check_antenna( 3386 struct instance *instance 3387 ) 3388{ 3389 enum antenna_state antenna; /* antenna state */ 3390 3391 if (instance->chan == 12) 3392 antenna = (instance->BEHa[130] & 0x6 ) >> 1; 3393 else 3394 antenna = (instance->BEHa[37] & 0xc0) >> 6; /* prob unset 6, set GT, UT unset VP */ 3395 3396 oncore_antenna_report (instance, antenna); 3397} 3398 3399 3400 3401/* 3402 * Check the leap second status once per day. 3403 * 3404 * Note that the ONCORE firmware for the Bj command is wrong at 3405 * least in the VP. 3406 * It starts advertising a LEAP SECOND as soon as the GPS satellite 3407 * data message (page 18, subframe 4) is updated to a date in the 3408 * future, and does not wait for the month that it will occur. 3409 * The event will usually be advertised several months in advance. 3410 * Since there is a one bit flag, there is no way to tell if it is 3411 * this month, or when... 3412 * 3413 * As such, we have the workaround below, of only checking for leap 3414 * seconds with the Bj command in June/December. 3415 * 3416 * The Gj command gives more information, and we can tell in which 3417 * month to apply the correction. 3418 * 3419 * Note that with the VP we COULD read the raw data message, and 3420 * interpret it ourselves, but since this is specific to this receiver 3421 * only, and the above workaround is adequate, we don't bother. 3422 */ 3423 3424static void 3425oncore_check_leap_sec( 3426 struct instance *instance 3427 ) 3428{ 3429 oncore_cmd_Bl[2] = 1; /* just to be sure */ 3430 if (instance->Bj_day != instance->BEHa[5]) { /* do this 1/day */ 3431 instance->Bj_day = instance->BEHa[5]; 3432 3433 if (instance->saw_Gj < 0) { /* -1 DONT have Gj use Bj */ 3434 if ((instance->BEHa[4] == 6) || (instance->BEHa[4] == 12)) { 3435 oncore_sendmsg(instance, oncore_cmd_Bj, sizeof(oncore_cmd_Bj)); 3436 oncore_sendmsg(instance, oncore_cmd_Bl, sizeof(oncore_cmd_Bl)); 3437 } 3438 return; 3439 } 3440 3441 if (instance->saw_Gj == 0) /* 0 is dont know if we have Gj */ 3442 instance->count4 = 1; 3443 3444 oncore_sendmsg(instance, oncore_cmd_Gj, sizeof(oncore_cmd_Gj)); 3445 return; 3446 } 3447 3448 /* Gj works for some 6/8 chan UT and the M12 */ 3449 /* if no response from Gj in 5 sec, we try Bj */ 3450 /* which isnt implemented in all the GT/UT either */ 3451 3452 if (instance->count4) { /* delay, waiting for Gj response */ 3453 if (instance->saw_Gj == 1) 3454 instance->count4 = 0; 3455 else if (instance->count4++ > 5) { /* delay, waiting for Gj response */ 3456 instance->saw_Gj = -1; /* didnt see it, will use Bj */ 3457 instance->count4 = 0; 3458 if ((instance->BEHa[4] == 6) || (instance->BEHa[4] == 12)) { 3459 oncore_sendmsg(instance, oncore_cmd_Bj, sizeof(oncore_cmd_Bj)); 3460 oncore_sendmsg(instance, oncore_cmd_Bl, sizeof(oncore_cmd_Bl)); 3461 } 3462 } 3463 } 3464} 3465 3466 3467 3468/* check the message checksum, 3469 * buf points to START of message ( @@ ) 3470 * len is length WITH CR/LF. 3471 */ 3472 3473static int 3474oncore_checksum_ok( 3475 u_char *buf, 3476 int len 3477 ) 3478{ 3479 int i, j; 3480 3481 j = 0; 3482 for (i = 2; i < len-3; i++) 3483 j ^= buf[i]; 3484 3485 return(j == buf[len-3]); 3486} 3487 3488 3489 3490static void 3491oncore_compute_dH( 3492 struct instance *instance 3493 ) 3494{ 3495 int GPS, MSL; 3496 3497 /* Here calculate dH = GPS - MSL for output message */ 3498 /* also set Altitude Hold mode if GT */ 3499 3500 instance->have_dH = 1; 3501 if (instance->chan == 12) { 3502 GPS = buf_w32(&instance->BEHa[39]); 3503 MSL = buf_w32(&instance->BEHa[43]); 3504 } else { 3505 GPS = buf_w32(&instance->BEHa[23]); 3506 MSL = buf_w32(&instance->BEHa[27]); 3507 } 3508 instance->dH = GPS - MSL; 3509 instance->dH /= 100.; 3510 3511 /* if MSL is not set, the calculation is meaningless */ 3512 3513 if (MSL) /* not set ! */ 3514 oncore_log_f(instance, LOG_INFO, 3515 "dH = (GPS - MSL) = %.2fm", instance->dH); 3516} 3517 3518 3519 3520/* 3521 * try loading Almanac from shmem (where it was copied from shmem_old 3522 */ 3523 3524static void 3525oncore_load_almanac( 3526 struct instance *instance 3527 ) 3528{ 3529 u_char *cp, Cmd[20]; 3530 int n; 3531 struct timeval tv; 3532 struct tm *tm; 3533 3534 if (!instance->shmem) 3535 return; 3536 3537#ifndef ONCORE_VERBOSE_LOAD_ALMANAC 3538 for (cp = instance->shmem + 4; (n = 256 * (*(cp-3)) + *(cp-2)); 3539 cp += (n + 3)) { 3540 if (!strncmp((char *) cp, "@@Cb", 4) && 3541 oncore_checksum_ok(cp, 33) && 3542 (*(cp+4) == 4 || *(cp+4) == 5)) { 3543 write(instance->ttyfd, cp, n); 3544 oncore_print_Cb(instance, cp); 3545 } 3546 } 3547#else /* ONCORE_VERBOSE_LOAD_ALMANAC follows */ 3548 for (cp = instance->shmem + 4; (n = 256 * (*(cp-3)) + *(cp-2)); 3549 cp += (n+3)) { 3550 oncore_log_f(instance, LOG_DEBUG, "See %c%c%c%c %d", 3551 *(cp), *(cp+1), *(cp+2), *(cp+3), *(cp+4)); 3552 3553 if (!strncmp(cp, "@@Cb", 4)) { 3554 oncore_print_Cb(instance, cp); 3555 if (oncore_checksum_ok(cp, 33)) { 3556 if (*(cp+4) == 4 || *(cp+4) == 5) { 3557 oncore_log(instance, LOG_DEBUG, "GOOD SF"); 3558 write(instance->ttyfd, cp, n); 3559 } else 3560 oncore_log(instance, LOG_DEBUG, "BAD SF"); 3561 } else 3562 oncore_log(instance, LOG_DEBUG, "BAD CHECKSUM"); 3563 } 3564 } 3565#endif 3566 3567 /* Must load position and time or the Almanac doesn't do us any good */ 3568 3569 if (!instance->posn_set) { /* if we input a posn use it, else from SHMEM */ 3570 oncore_log(instance, LOG_NOTICE, "Loading Posn from SHMEM"); 3571 for (cp=instance->shmem+4; (n = 256*(*(cp-3)) + *(cp-2)); cp+=(n+3)) { 3572 if ((instance->chan == 6 && (!strncmp((char *) cp, "@@Ba", 4) && oncore_checksum_ok(cp, 68))) || 3573 (instance->chan == 8 && (!strncmp((char *) cp, "@@Ea", 4) && oncore_checksum_ok(cp, 76))) || 3574 (instance->chan == 12 && (!strncmp((char *) cp, "@@Ha", 4) && oncore_checksum_ok(cp, 154)))) { 3575 int ii, jj, kk; 3576 3577 instance->posn_set = 1; 3578 ii = buf_w32(cp + 15); 3579 jj = buf_w32(cp + 19); 3580 kk = buf_w32(cp + 23); 3581#ifdef ONCORE_VERBOSE_LOAD_ALMANAC 3582 oncore_log_f(instance, LOG_DEBUG, 3583 "SHMEM posn = %ld (%d, %d, %d)", 3584 (long)(cp-instance->shmem), 3585 ii, jj, kk); 3586#endif 3587 if (ii != 0 || jj != 0 || kk != 0) { /* phk asked for this test */ 3588 instance->ss_lat = ii; 3589 instance->ss_long = jj; 3590 instance->ss_ht = kk; 3591 } 3592 } 3593 } 3594 } 3595 oncore_set_posn(instance); 3596 3597 /* and set time to time from Computer clock */ 3598 3599 GETTIMEOFDAY(&tv, 0); 3600 tm = gmtime((const time_t *) &tv.tv_sec); 3601 3602#ifdef ONCORE_VERBOSE_LOAD_ALMANAC 3603 oncore_log_f(instance, LOG_DEBUG, "DATE %d %d %d, %d %d %d", 3604 1900 + tm->tm_year, tm->tm_mon, tm->tm_mday, 3605 tm->tm_hour, tm->tm_min, tm->tm_sec); 3606#endif 3607 if (instance->chan == 12) { 3608 memcpy(Cmd, oncore_cmd_Gb, (size_t) sizeof(oncore_cmd_Gb)); 3609 Cmd[-2+4] = tm->tm_mon + 1; 3610 Cmd[-2+5] = tm->tm_mday; 3611 Cmd[-2+6] = (1900+tm->tm_year)/256; 3612 Cmd[-2+7] = (1900+tm->tm_year)%256; 3613 Cmd[-2+8] = tm->tm_hour; 3614 Cmd[-2+9] = tm->tm_min; 3615 Cmd[-2+10] = tm->tm_sec; 3616 Cmd[-2+11] = 0; 3617 Cmd[-2+12] = 0; 3618 Cmd[-2+13] = 0; 3619 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Gb)); 3620 } else { 3621 /* First set GMT offset to zero */ 3622 3623 oncore_sendmsg(instance, oncore_cmd_Ab, sizeof(oncore_cmd_Ab)); 3624 3625 memcpy(Cmd, oncore_cmd_Ac, (size_t) sizeof(oncore_cmd_Ac)); 3626 Cmd[-2+4] = tm->tm_mon + 1; 3627 Cmd[-2+5] = tm->tm_mday; 3628 Cmd[-2+6] = (1900+tm->tm_year)/256; 3629 Cmd[-2+7] = (1900+tm->tm_year)%256; 3630 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Ac)); 3631 3632 memcpy(Cmd, oncore_cmd_Aa, (size_t) sizeof(oncore_cmd_Aa)); 3633 Cmd[-2+4] = tm->tm_hour; 3634 Cmd[-2+5] = tm->tm_min; 3635 Cmd[-2+6] = tm->tm_sec; 3636 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Aa)); 3637 } 3638 3639 oncore_log(instance, LOG_INFO, "Setting Posn and Time after Loading Almanac"); 3640} 3641 3642 3643 3644/* Almanac data input */ 3645 3646static void 3647oncore_print_Cb( 3648 struct instance *instance, 3649 u_char *cp 3650 ) 3651{ 3652#ifdef ONCORE_VERBOSE_CB 3653 int ii; 3654 char Msg[160], Msg2[10]; 3655 3656 oncore_log_f(instance, LOG_DEBUG, "DEBUG: See: %c%c%c%c", *(cp), 3657 *(cp+1), *(cp+2), *(cp+3)); 3658 3659 snprintf(Msg, sizeof(Msg), "DEBUG: Cb: [%d,%d]", *(cp+4), 3660 *(cp+5)); 3661 for (ii = 0; ii < 33; ii++) { 3662 snprintf(Msg2, sizeof(Msg2), " %d", *(cp+ii)); 3663 strlcat(Msg, Msg2, sizeof(Msg)); 3664 } 3665 oncore_log(instance, LOG_DEBUG, Msg); 3666 3667 oncore_log_f(instance, LOG_DEBUG, "Debug: Cb: [%d,%d]", *(cp+4), 3668 *(cp+5)); 3669#endif 3670} 3671 3672 3673#if 0 3674static void 3675oncore_print_array( 3676 u_char *cp, 3677 int n 3678 ) 3679{ 3680 int jj, i, j, nn; 3681 3682 nn = 0; 3683 printf("\nTOP\n"); 3684 jj = n/16; 3685 for (j=0; j<jj; j++) { 3686 printf("%4d: ", nn); 3687 nn += 16; 3688 for (i=0; i<16; i++) 3689 printf(" %o", *cp++); 3690 printf("\n"); 3691 } 3692} 3693#endif 3694 3695 3696static void 3697oncore_print_posn( 3698 struct instance *instance 3699 ) 3700{ 3701 char ew, ns; 3702 double xd, xm, xs, yd, ym, ys, hm, hft; 3703 int idx, idy, is, imx, imy; 3704 long lat, lon; 3705 3706 oncore_log(instance, LOG_INFO, "Posn:"); 3707 ew = 'E'; 3708 lon = instance->ss_long; 3709 if (lon < 0) { 3710 ew = 'W'; 3711 lon = -lon; 3712 } 3713 3714 ns = 'N'; 3715 lat = instance->ss_lat; 3716 if (lat < 0) { 3717 ns = 'S'; 3718 lat = -lat; 3719 } 3720 3721 hm = instance->ss_ht/100.; 3722 hft= hm/0.3048; 3723 3724 xd = lat/3600000.; /* lat, lon in int msec arc, ht in cm. */ 3725 yd = lon/3600000.; 3726 oncore_log_f(instance, LOG_INFO, 3727 "Lat = %c %11.7fdeg, Long = %c %11.7fdeg, Alt = %5.2fm (%5.2fft) GPS", 3728 ns, xd, ew, yd, hm, hft); 3729 3730 idx = xd; 3731 idy = yd; 3732 imx = lat%3600000; 3733 imy = lon%3600000; 3734 xm = imx/60000.; 3735 ym = imy/60000.; 3736 oncore_log_f(instance, LOG_INFO, 3737 "Lat = %c %3ddeg %7.4fm, Long = %c %3ddeg %8.5fm, Alt = %7.2fm (%7.2fft) GPS", 3738 ns, idx, xm, ew, idy, ym, hm, hft); 3739 3740 imx = xm; 3741 imy = ym; 3742 is = lat%60000; 3743 xs = is/1000.; 3744 is = lon%60000; 3745 ys = is/1000.; 3746 oncore_log_f(instance, LOG_INFO, 3747 "Lat = %c %3ddeg %2dm %5.2fs, Long = %c %3ddeg %2dm %5.2fs, Alt = %7.2fm (%7.2fft) GPS", 3748 ns, idx, imx, xs, ew, idy, imy, ys, hm, hft); 3749} 3750 3751 3752 3753/* 3754 * write message to Oncore. 3755 */ 3756 3757static void 3758oncore_sendmsg( 3759 struct instance *instance, 3760 u_char *ptr, 3761 size_t len 3762 ) 3763{ 3764 int fd; 3765 u_char cs = 0; 3766 3767 fd = instance->ttyfd; 3768#ifdef ONCORE_VERBOSE_SENDMSG 3769 if (debug > 4) { 3770 oncore_log_f(instance, LOG_DEBUG, "ONCORE: Send @@%c%c %d", 3771 ptr[0], ptr[1], (int)len); 3772 } 3773#endif 3774 write(fd, "@@", (size_t) 2); 3775 write(fd, ptr, len); 3776 while (len--) 3777 cs ^= *ptr++; 3778 write(fd, &cs, (size_t) 1); 3779 write(fd, "\r\n", (size_t) 2); 3780} 3781 3782 3783 3784static void 3785oncore_set_posn( 3786 struct instance *instance 3787 ) 3788{ 3789 int mode; 3790 u_char Cmd[20]; 3791 3792 /* Turn OFF position hold, it needs to be off to set position (for some units), 3793 will get set ON in @@Ea later */ 3794 3795 if (instance->chan == 12) 3796 oncore_sendmsg(instance, oncore_cmd_Gd0, sizeof(oncore_cmd_Gd0)); /* (12) */ 3797 else { 3798 oncore_sendmsg(instance, oncore_cmd_At0, sizeof(oncore_cmd_At0)); /* (6/8) */ 3799 oncore_sendmsg(instance, oncore_cmd_Av0, sizeof(oncore_cmd_Av0)); /* (6/8) */ 3800 } 3801 3802 mode = instance->init_type; 3803 3804 if (mode != 0) { /* first set posn hold position */ 3805 memcpy(Cmd, oncore_cmd_As, (size_t) sizeof(oncore_cmd_As)); /* don't modify static variables */ 3806 w32_buf(&Cmd[-2+4], (int) instance->ss_lat); 3807 w32_buf(&Cmd[-2+8], (int) instance->ss_long); 3808 w32_buf(&Cmd[-2+12], (int) instance->ss_ht); 3809 Cmd[-2+16] = 0; 3810 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_As)); /* posn hold 3D posn (6/8/12) */ 3811 3812 memcpy(Cmd, oncore_cmd_Au, (size_t) sizeof(oncore_cmd_Au)); 3813 w32_buf(&Cmd[-2+4], (int) instance->ss_ht); 3814 Cmd[-2+8] = 0; 3815 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Au)); /* altitude hold (6/8/12 not UT, M12T) */ 3816 3817 /* next set current position */ 3818 3819 if (instance->chan == 12) { 3820 memcpy(Cmd, oncore_cmd_Ga, (size_t) sizeof(oncore_cmd_Ga)); 3821 w32_buf(&Cmd[-2+4], (int) instance->ss_lat); 3822 w32_buf(&Cmd[-2+8], (int) instance->ss_long); 3823 w32_buf(&Cmd[-2+12],(int) instance->ss_ht); 3824 Cmd[-2+16] = 0; 3825 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Ga)); /* 3d posn (12) */ 3826 } else { 3827 memcpy(Cmd, oncore_cmd_Ad, (size_t) sizeof(oncore_cmd_Ad)); 3828 w32_buf(&Cmd[-2+4], (int) instance->ss_lat); 3829 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Ad)); /* lat (6/8) */ 3830 3831 memcpy(Cmd, oncore_cmd_Ae, (size_t) sizeof(oncore_cmd_Ae)); 3832 w32_buf(&Cmd[-2+4], (int) instance->ss_long); 3833 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Ae)); /* long (6/8) */ 3834 3835 memcpy(Cmd, oncore_cmd_Af, (size_t) sizeof(oncore_cmd_Af)); 3836 w32_buf(&Cmd[-2+4], (int) instance->ss_ht); 3837 Cmd[-2+8] = 0; 3838 oncore_sendmsg(instance, Cmd, sizeof(oncore_cmd_Af)); /* ht (6/8) */ 3839 } 3840 3841 /* Finally, turn on position hold */ 3842 3843 if (instance->chan == 12) 3844 oncore_sendmsg(instance, oncore_cmd_Gd1, sizeof(oncore_cmd_Gd1)); 3845 else 3846 oncore_sendmsg(instance, oncore_cmd_At1, sizeof(oncore_cmd_At1)); 3847 } 3848} 3849 3850 3851 3852static void 3853oncore_set_traim( 3854 struct instance *instance 3855 ) 3856{ 3857 if (instance->traim_in != -1) /* set in Input */ 3858 instance->traim = instance->traim_in; 3859 else 3860 instance->traim = instance->traim_ck; 3861 3862 oncore_log_f(instance, LOG_INFO, "Input says TRAIM = %d", 3863 instance->traim_in); 3864 oncore_log_f(instance, LOG_INFO, "Model # says TRAIM = %d", 3865 instance->traim_id); 3866 oncore_log_f(instance, LOG_INFO, "Testing says TRAIM = %d", 3867 instance->traim_ck); 3868 oncore_log_f(instance, LOG_INFO, "Using TRAIM = %d", 3869 instance->traim); 3870 3871 if (instance->traim_ck == 1 && instance->traim == 0) { 3872 /* if it should be off, and I turned it on during testing, 3873 then turn it off again */ 3874 if (instance->chan == 6) 3875 oncore_sendmsg(instance, oncore_cmd_Bnx, sizeof(oncore_cmd_Bnx)); 3876 else if (instance->chan == 8) 3877 oncore_sendmsg(instance, oncore_cmd_Enx, sizeof(oncore_cmd_Enx)); 3878 else { /* chan == 12 */ 3879 oncore_sendmsg(instance, oncore_cmd_Ge0, sizeof(oncore_cmd_Ge0)); 3880 oncore_sendmsg(instance, oncore_cmd_Hn0, sizeof(oncore_cmd_Hn0)); 3881 } 3882 } 3883} 3884 3885 3886 3887/* 3888 * if SHMEM active, every 15s, steal one 'tick' to get 2D or 3D posn. 3889 */ 3890 3891static void 3892oncore_shmem_get_3D( 3893 struct instance *instance 3894 ) 3895{ 3896 if (instance->pp->second%15 == 3) { /* start the sequence */ /* by changing mode */ 3897 instance->shmem_reset = 1; 3898 if (instance->chan == 12) { 3899 if (instance->shmem_Posn == 2) 3900 oncore_sendmsg(instance, oncore_cmd_Gd2, sizeof(oncore_cmd_Gd2)); /* 2D */ 3901 else 3902 oncore_sendmsg(instance, oncore_cmd_Gd0, sizeof(oncore_cmd_Gd0)); /* 3D */ 3903 } else { 3904 if (instance->saw_At) { /* out of 0D -> 3D mode */ 3905 oncore_sendmsg(instance, oncore_cmd_At0, sizeof(oncore_cmd_At0)); 3906 if (instance->shmem_Posn == 2) /* 3D -> 2D mode */ 3907 oncore_sendmsg(instance, oncore_cmd_Av1, sizeof(oncore_cmd_Av1)); 3908 } else 3909 oncore_sendmsg(instance, oncore_cmd_Av0, sizeof(oncore_cmd_Av0)); 3910 } 3911 } else if (instance->shmem_reset || (instance->mode != MODE_0D)) { 3912 instance->shmem_reset = 0; 3913 if (instance->chan == 12) 3914 oncore_sendmsg(instance, oncore_cmd_Gd1, sizeof(oncore_cmd_Gd1)); /* 0D */ 3915 else { 3916 if (instance->saw_At) { 3917 if (instance->mode == MODE_2D) /* 2D -> 3D or 0D mode */ 3918 oncore_sendmsg(instance, oncore_cmd_Av0, sizeof(oncore_cmd_Av0)); 3919 oncore_sendmsg(instance, oncore_cmd_At1, sizeof(oncore_cmd_At1)); /* to 0D mode */ 3920 } else 3921 oncore_sendmsg(instance, oncore_cmd_Av1, sizeof(oncore_cmd_Av1)); 3922 } 3923 } 3924} 3925 3926 3927 3928/* 3929 * Here we do the Software SiteSurvey. 3930 * We have to average our own position for the Position Hold Mode 3931 * We use Heights from the GPS ellipsoid. 3932 * We check for the END of either HW or SW SiteSurvey. 3933 */ 3934 3935static void 3936oncore_ss( 3937 struct instance *instance 3938 ) 3939{ 3940 double lat, lon, ht; 3941 3942 3943 if (instance->site_survey == ONCORE_SS_HW) { 3944 /* 3945 * Check to see if Hardware SiteSurvey has Finished. 3946 */ 3947 3948 if ((instance->chan == 8 && !(instance->BEHa[37] & 0x20)) || 3949 (instance->chan == 12 && !(instance->BEHa[130] & 0x10))) { 3950 oncore_log(instance, LOG_INFO, "Now in 0D mode"); 3951 3952 if (instance->chan == 12) 3953 oncore_sendmsg(instance, oncore_cmd_Gax, sizeof(oncore_cmd_Gax)); 3954 else 3955 oncore_sendmsg(instance, oncore_cmd_Asx, sizeof(oncore_cmd_Asx)); 3956 3957 oncore_log(instance, LOG_NOTICE, "SSstate = ONCORE_SS_DONE"); 3958 instance->site_survey = ONCORE_SS_DONE; 3959 } 3960 } else { 3961 /* 3962 * Must be a Software Site Survey. 3963 */ 3964 3965 if (instance->rsm.bad_fix) /* Not if poor geometry or less than 3 sats */ 3966 return; 3967 3968 if (instance->mode != MODE_3D) /* Use only 3D Fixes */ 3969 return; 3970 3971 instance->ss_lat += buf_w32(&instance->BEHa[15]); 3972 instance->ss_long += buf_w32(&instance->BEHa[19]); 3973 instance->ss_ht += buf_w32(&instance->BEHa[23]); /* GPS ellipsoid */ 3974 instance->ss_count++; 3975 3976 if (instance->ss_count != POS_HOLD_AVERAGE) 3977 return; 3978 3979 instance->ss_lat /= POS_HOLD_AVERAGE; 3980 instance->ss_long /= POS_HOLD_AVERAGE; 3981 instance->ss_ht /= POS_HOLD_AVERAGE; 3982 3983 oncore_log_f(instance, LOG_NOTICE, 3984 "Surveyed posn: lat %.3f (mas) long %.3f (mas) ht %.3f (cm)", 3985 instance->ss_lat, instance->ss_long, 3986 instance->ss_ht); 3987 lat = instance->ss_lat/3600000.; 3988 lon = instance->ss_long/3600000.; 3989 ht = instance->ss_ht/100; 3990 oncore_log_f(instance, LOG_NOTICE, 3991 "Surveyed posn: lat %.7f (deg) long %.7f (deg) ht %.2f (m)", 3992 lat, lon, ht); 3993 3994 oncore_set_posn(instance); 3995 3996 oncore_log(instance, LOG_INFO, "Now in 0D mode"); 3997 3998 oncore_log(instance, LOG_NOTICE, "SSstate = ONCORE_SS_DONE"); 3999 instance->site_survey = ONCORE_SS_DONE; 4000 } 4001} 4002 4003 4004 4005static int 4006oncore_wait_almanac( 4007 struct instance *instance 4008 ) 4009{ 4010 if (instance->rsm.bad_almanac) { 4011 instance->counta++; 4012 if (instance->counta%5 == 0) 4013 oncore_log(instance, LOG_INFO, "Waiting for Almanac"); 4014 4015 /* 4016 * If we get here (first time) then we don't have an almanac in memory. 4017 * Check if we have a SHMEM, and if so try to load whatever is there. 4018 */ 4019 4020 if (!instance->almanac_from_shmem) { 4021 instance->almanac_from_shmem = 1; 4022 oncore_load_almanac(instance); 4023 } 4024 return(1); 4025 } else { /* Here we have the Almanac, we will be starting the @@Bn/@@En/@@Hn 4026 commands, and can finally check for TRAIM. Again, we set a delay 4027 (5sec) and wait for things to settle down */ 4028 4029 if (instance->chan == 6) 4030 oncore_sendmsg(instance, oncore_cmd_Bn, sizeof(oncore_cmd_Bn)); 4031 else if (instance->chan == 8) 4032 oncore_sendmsg(instance, oncore_cmd_En, sizeof(oncore_cmd_En)); 4033 else if (instance->chan == 12) { 4034 oncore_sendmsg(instance, oncore_cmd_Gc, sizeof(oncore_cmd_Gc)); /* 1PPS on, continuous */ 4035 oncore_sendmsg(instance, oncore_cmd_Ge, sizeof(oncore_cmd_Ge)); /* TRAIM on */ 4036 oncore_sendmsg(instance, oncore_cmd_Hn, sizeof(oncore_cmd_Hn)); /* TRAIM status 1/s */ 4037 } 4038 instance->traim_delay = 1; 4039 4040 oncore_log(instance, LOG_NOTICE, "Have now loaded an ALMANAC"); 4041 4042 instance->o_state = ONCORE_RUN; 4043 oncore_log(instance, LOG_NOTICE, "state = ONCORE_RUN"); 4044 } 4045 return(0); 4046} 4047 4048 4049static void 4050oncore_feed_clockproc( 4051 struct instance * instance 4052 ) 4053{ 4054 struct peer * const peer = instance->peer; 4055 struct refclockproc * const pp = instance->pp; 4056 4057 TCivilDate cd; /* calendar date + time */ 4058 TGpsDatum gd; /* GPS datum, remapped into NTP epoch */ 4059 l_fp fp; /* the reference time in NTP format */ 4060 4061 if (pp->year >= 1980) { 4062 /* There are oncore receivers that run in a fixed 4063 * (possibly shifted) GPS era and fold back into that 4064 * era on every GPS week rollover. 4065 * 4066 * We do not trust the date we get and remap to a GPS 4067 * era defined by the GPS base date (derived from the 4068 * build time stamp or a 'tos basedate' config option. 4069 */ 4070 ZERO(fp); /* has a zero to begin with */ 4071 ZERO(cd); /* month == monthday == 0 -> use year+yearday */ 4072 cd.year = pp->year; 4073 cd.yearday = pp->day; 4074 cd.hour = pp->hour; 4075 cd.minute = pp->minute; 4076 cd.second = pp->second; 4077 4078 /* the magic happens in the next line: */ 4079 gd = gpscal_from_calendar(&cd, fp); /* fp should be zero here */ 4080 4081 /* To avoid the trouble the day-of-year calculations in 4082 * 'refclock_process()' can cause we feed the time 4083 * stamps we have now directly. This also saves us two 4084 * full calendar calendar conversion cycles. 4085 */ 4086 fp = ntpfp_from_gpsdatum(&gd); 4087 refclock_process_offset(pp, fp, pp->lastrec, pp->fudgetime1); 4088 } else { 4089 /* This is obviously a bad date/time... */ 4090 refclock_report(peer, CEVNT_BADDATE); 4091 peer->flags &= ~FLAG_PPS; /* problem - clear PPS FLAG */ 4092 return; 4093 } 4094} 4095 4096static void 4097oncore_log ( 4098 struct instance *instance, 4099 int log_level, 4100 const char *msg 4101 ) 4102{ 4103 msyslog(log_level, "ONCORE[%d]: %s", instance->unit, msg); 4104 mprintf_clock_stats(&instance->peer->srcadr, "ONCORE[%d]: %s", 4105 instance->unit, msg); 4106} 4107 4108 4109static int 4110oncore_log_f( 4111 struct instance * instance, 4112 int log_level, 4113 const char * fmt, 4114 ... 4115 ) 4116{ 4117 va_list ap; 4118 int rc; 4119 char msg[512]; 4120 4121 va_start(ap, fmt); 4122 rc = mvsnprintf(msg, sizeof(msg), fmt, ap); 4123 va_end(ap); 4124 oncore_log(instance, log_level, msg); 4125 4126#ifdef ONCORE_VERBOSE_ONCORE_LOG 4127 instance->max_len = max(strlen(msg), instance->max_len); 4128 instance->max_count++; 4129 if (instance->max_count % 100 == 0) 4130 oncore_log_f(instance, LOG_INFO, 4131 "Max Message Length so far is %d", 4132 instance->max_len); 4133#endif 4134 return rc; 4135} 4136 4137#else 4138int refclock_oncore_bs; 4139#endif /* REFCLOCK && CLOCK_ONCORE */ 4140