2 * /src/NTP/ntp4-dev/libparse/parsesolaris.c,v 4.11 2005/04/16 17:32:10 kardel RELEASE_20050508_A
4 * parsesolaris.c,v 4.11 2005/04/16 17:32:10 kardel RELEASE_20050508_A
6 * STREAMS module for reference clocks
8 * Copyright (c) 1995-2005 by Frank Kardel <kardel <AT> ntp.org>
9 * Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universitaet Erlangen-Nuernberg, Germany
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the author nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #define _KERNEL /* it is a _KERNEL module */
40 static char rcsid[] = "parsesolaris.c,v 4.11 2005/04/16 17:32:10 kardel RELEASE_20050508_A";
44 #include <sys/types.h>
46 #include <sys/errno.h>
48 #include <sys/termios.h>
49 #include <sys/stream.h>
50 #include <sys/strtty.h>
51 #include <sys/stropts.h>
52 #include <sys/modctl.h>
54 #include <sys/sunddi.h>
55 #ifdef __GNUC__ /* makes it compile on Solaris 2.6 - acc doesn't like it -- GREAT! */
61 #include <sys/parsestreams.h>
63 /*--------------- loadable driver section -----------------------------*/
65 static struct streamtab parseinfo;
67 static struct fmodsw fmod_templ =
69 "parse", /* module name */
70 &parseinfo, /* module information */
71 D_NEW|D_MP|D_MTQPAIR, /* exclusive for q pair */
75 extern struct mod_ops mod_strmodops;
77 static struct modlstrmod modlstrmod =
79 &mod_strmodops, /* a STREAMS module */
80 "PARSE - NTP reference", /* name this baby - keep room for revision number */
84 static struct modlinkage modlinkage =
94 * module management routines
102 static char revision[] = "4.6";
111 * copy RCS revision into Drv_name
113 * are we forcing RCS here to do things it was not built for ?
120 * if present. - not necessary on a -kv co (cvs export)
122 while (*s && (*s != ' '))
129 t = modlstrmod.strmod_linkinfo;
130 while (*t && (*t != ' '))
137 while (*S && (((*S >= '0') && (*S <= '9')) || (*S == '.')))
142 if (*s && *t && (S > s))
144 if (strlen(t) >= (S - s))
146 strlcpy(t, s, (unsigned)(S - s));
149 return (mod_install(&modlinkage));
155 struct modinfo *modinfop
158 return (mod_info(&modlinkage, modinfop));
167 if (mod_remove(&modlinkage) != DDI_SUCCESS)
175 /*--------------- stream module definition ----------------------------*/
177 static int parseopen (queue_t *, dev_t *, int, int, cred_t *);
178 static int parseclose (queue_t *, int);
179 static int parsewput (queue_t *, mblk_t *);
180 static int parserput (queue_t *, mblk_t *);
181 static int parsersvc (queue_t *);
183 static struct module_info driverinfo =
185 0, /* module ID number */
186 fmod_templ.f_name, /* module name - why repeated here ? compat ?*/
187 0, /* minimum accepted packet size */
188 INFPSZ, /* maximum accepted packet size */
189 1, /* high water mark - flow control */
190 0 /* low water mark - flow control */
193 static struct qinit rinit = /* read queue definition */
195 parserput, /* put procedure */
196 parsersvc, /* service procedure */
197 parseopen, /* open procedure */
198 parseclose, /* close procedure */
199 NULL, /* admin procedure - NOT USED FOR NOW */
200 &driverinfo, /* information structure */
201 NULL /* statistics */
204 static struct qinit winit = /* write queue definition */
206 parsewput, /* put procedure */
207 NULL, /* service procedure */
208 NULL, /* open procedure */
209 NULL, /* close procedure */
210 NULL, /* admin procedure - NOT USED FOR NOW */
211 &driverinfo, /* information structure */
212 NULL /* statistics */
215 static struct streamtab parseinfo = /* stream info element for parse driver */
217 &rinit, /* read queue */
218 &winit, /* write queue */
223 /*--------------- driver data structures ----------------------------*/
226 * we usually have an inverted signal - but you
227 * can change this to suit your needs
229 int cd_invert = 1; /* invert status of CD line - PPS support via CD input */
237 /*--------------- module implementation -----------------------------*/
239 #define TIMEVAL_USADD(_X_, _US_) do {\
240 (_X_)->tv_usec += (_US_);\
241 if ((_X_)->tv_usec >= 1000000)\
244 (_X_)->tv_usec -= 1000000;\
248 static int init_linemon (queue_t *);
249 static void close_linemon (queue_t *, queue_t *);
251 #define M_PARSE 0x0001
252 #define M_NOPARSE 0x0002
276 if (lev & parsedebug)
277 vcmn_err(CE_CONT, form, ap);
290 pprintf(DD_OPEN,"parse: SETUP_STREAM - setting up stream for q=%x\n", q);
292 mp = allocb(sizeof(struct stroptions), BPRI_MED);
295 struct stroptions *str = (void *)mp->b_wptr;
297 str->so_flags = SO_READOPT|SO_HIWAT|SO_LOWAT|SO_ISNTTY;
298 str->so_readopt = (mode == M_PARSE) ? RMSGD : RNORM;
299 str->so_hiwat = (mode == M_PARSE) ? sizeof(parsetime_t) : 256;
301 mp->b_datap->db_type = M_SETOPTS;
302 mp->b_wptr += sizeof(struct stroptions);
304 panic("NULL q - strange");
306 return putctl1(WR(q)->q_next, M_CTL, (mode == M_PARSE) ? MC_SERVICEIMM :
311 pprintf(DD_OPEN, "parse: setup_stream - FAILED - no MEMORY for allocb\n");
326 register parsestream_t *parse;
327 static int notice = 0;
329 pprintf(DD_OPEN, "parse: OPEN - q=%x\n", q);
331 if (sflag != MODOPEN)
332 { /* open only for modules */
333 pprintf(DD_OPEN, "parse: OPEN - FAILED - not MODOPEN\n");
337 if (q->q_ptr != (caddr_t)NULL)
339 pprintf(DD_OPEN, "parse: OPEN - FAILED - EXCLUSIVE ONLY\n");
343 q->q_ptr = (caddr_t)kmem_alloc(sizeof(parsestream_t), KM_SLEEP);
344 if (q->q_ptr == (caddr_t)0)
349 pprintf(DD_OPEN, "parse: OPEN - parse area q=%x, q->q_ptr=%x\n", q, q->q_ptr);
350 WR(q)->q_ptr = q->q_ptr;
351 pprintf(DD_OPEN, "parse: OPEN - WQ parse area q=%x, q->q_ptr=%x\n", WR(q), WR(q)->q_ptr);
353 parse = (parsestream_t *) q->q_ptr;
354 bzero((caddr_t)parse, sizeof(*parse));
355 parse->parse_queue = q;
356 parse->parse_status = PARSE_ENABLE;
357 parse->parse_ppsclockev.tv.tv_sec = 0;
358 parse->parse_ppsclockev.tv.tv_usec = 0;
359 parse->parse_ppsclockev.serial = 0;
363 pprintf(DD_OPEN, "parse: OPEN - initializing io subsystem q=%x\n", q);
365 if (!parse_ioinit(&parse->parse_io))
372 kmem_free((caddr_t)parse, sizeof(parsestream_t));
377 pprintf(DD_OPEN, "parse: OPEN - initializing stream q=%x\n", q);
379 if (setup_stream(q, M_PARSE))
381 (void) init_linemon(q); /* hook up PPS ISR routines if possible */
382 pprintf(DD_OPEN, "parse: OPEN - SUCCEEDED\n");
385 * I know that you know the delete key, but you didn't write this
386 * code, did you ? - So, keep the message in here.
390 cmn_err(CE_CONT, "?%s: Copyright (c) 1993-2005, Frank Kardel\n", modlstrmod.strmod_linkinfo);
400 kmem_free((caddr_t)parse, sizeof(parsestream_t));
413 register parsestream_t *parse = (parsestream_t *)q->q_ptr;
414 register unsigned long s;
416 pprintf(DD_CLOSE, "parse: CLOSE\n");
422 if (parse->parse_dqueue)
423 close_linemon(parse->parse_dqueue, q);
424 parse->parse_dqueue = (queue_t *)0;
428 parse_ioend(&parse->parse_io);
430 kmem_free((caddr_t)parse, sizeof(parsestream_t));
432 q->q_ptr = (caddr_t)NULL;
433 WR(q)->q_ptr = (caddr_t)NULL;
439 * move unrecognized stuff upward
448 while ((mp = getq(q)))
450 if (canputnext(q) || (mp->b_datap->db_type > QPCTL))
453 pprintf(DD_RSVC, "parse: RSVC - putnext\n");
458 pprintf(DD_RSVC, "parse: RSVC - flow control wait\n");
467 * send stuff down - dont care about
477 register mblk_t *datap;
478 register struct iocblk *iocp;
479 parsestream_t *parse = (parsestream_t *)q->q_ptr;
481 pprintf(DD_WPUT, "parse: parsewput\n");
483 switch (mp->b_datap->db_type)
490 iocp = (void *)mp->b_rptr;
491 switch (iocp->ioc_cmd)
494 pprintf(DD_WPUT, "parse: parsewput - forward M_IOCTL\n");
500 * taken from Craig Leres ppsclock module (and modified)
502 datap = allocb(sizeof(struct ppsclockev), BPRI_MED);
503 if (datap == NULL || mp->b_cont)
505 mp->b_datap->db_type = M_IOCNAK;
506 iocp->ioc_error = (datap == NULL) ? ENOMEM : EINVAL;
514 /* (void *) quiets cast alignment warning */
515 *(struct ppsclockev *)(void *)datap->b_wptr = parse->parse_ppsclockev;
517 sizeof(struct ppsclockev) / sizeof(*datap->b_wptr);
518 mp->b_datap->db_type = M_IOCACK;
519 iocp->ioc_count = sizeof(struct ppsclockev);
523 case PARSEIOC_ENABLE:
524 case PARSEIOC_DISABLE:
526 parse->parse_status = (parse->parse_status & (unsigned)~PARSE_ENABLE) |
527 (iocp->ioc_cmd == PARSEIOC_ENABLE) ?
529 if (!setup_stream(RD(q), (parse->parse_status & PARSE_ENABLE) ?
530 M_PARSE : M_NOPARSE))
532 mp->b_datap->db_type = M_IOCNAK;
536 mp->b_datap->db_type = M_IOCACK;
542 case PARSEIOC_TIMECODE:
543 case PARSEIOC_SETFMT:
544 case PARSEIOC_GETFMT:
546 if (iocp->ioc_count == sizeof(parsectl_t))
548 parsectl_t *dct = (void *)mp->b_cont->b_rptr;
550 switch (iocp->ioc_cmd)
552 case PARSEIOC_TIMECODE:
553 pprintf(DD_WPUT, "parse: parsewput - PARSEIOC_TIMECODE\n");
554 ok = parse_timecode(dct, &parse->parse_io);
557 case PARSEIOC_SETFMT:
558 pprintf(DD_WPUT, "parse: parsewput - PARSEIOC_SETFMT\n");
559 ok = parse_setfmt(dct, &parse->parse_io);
562 case PARSEIOC_GETFMT:
563 pprintf(DD_WPUT, "parse: parsewput - PARSEIOC_GETFMT\n");
564 ok = parse_getfmt(dct, &parse->parse_io);
568 pprintf(DD_WPUT, "parse: parsewput - PARSEIOC_SETCS\n");
569 ok = parse_setcs(dct, &parse->parse_io);
572 mp->b_datap->db_type = ok ? M_IOCACK : M_IOCNAK;
576 mp->b_datap->db_type = M_IOCNAK;
578 pprintf(DD_WPUT, "parse: parsewput qreply - %s\n", (mp->b_datap->db_type == M_IOCNAK) ? "M_IOCNAK" : "M_IOCACK");
587 * read characters from streams buffers
594 while (*mp != (mblk_t *)NULL)
596 if ((*mp)->b_wptr - (*mp)->b_rptr)
598 return (unsigned long)(*(unsigned char *)((*mp)->b_rptr++));
602 register mblk_t *mmp = *mp;
608 return (unsigned long)~0;
612 * convert incoming data
620 register unsigned char type;
623 switch (type = mp->b_datap->db_type)
627 * anything we don't know will be put on queue
628 * the service routine will move it to the next one
630 pprintf(DD_RPUT, "parse: parserput - forward type 0x%x\n", type);
632 if (canputnext(q) || (mp->b_datap->db_type > QPCTL))
643 register parsestream_t * parse = (parsestream_t *)q->q_ptr;
644 register mblk_t *nmp;
645 register unsigned long ch;
647 timespec_t hres_time;
650 * get time on packet delivery
652 gethrestime(&hres_time);
653 c_time.tv.tv_sec = hres_time.tv_sec;
654 c_time.tv.tv_usec = hres_time.tv_nsec / 1000;
656 if (!(parse->parse_status & PARSE_ENABLE))
658 pprintf(DD_RPUT, "parse: parserput - parser disabled - forward type 0x%x\n", type);
659 if (canputnext(q) || (mp->b_datap->db_type > QPCTL))
668 pprintf(DD_RPUT, "parse: parserput - M_%s\n", (type == M_DATA) ? "DATA" : "BREAK");
672 * parse packet looking for start an end characters
674 while (mp != (mblk_t *)NULL)
677 if (ch != ~0 && parse_ioread(&parse->parse_io, (unsigned int)ch, &c_time))
680 * up up and away (hopefully ...)
681 * don't press it if resources are tight or nobody wants it
683 nmp = (mblk_t *)NULL;
684 if (canputnext(parse->parse_queue) && (nmp = allocb(sizeof(parsetime_t), BPRI_MED)))
686 bcopy((caddr_t)&parse->parse_io.parse_dtime, (caddr_t)nmp->b_rptr, sizeof(parsetime_t));
687 nmp->b_wptr += sizeof(parsetime_t);
688 putnext(parse->parse_queue, nmp);
691 if (nmp) freemsg(nmp);
692 parse_iodone(&parse->parse_io);
698 if (parse_ioread(&parse->parse_io, (unsigned int)0, &c_time))
701 * up up and away (hopefully ...)
702 * don't press it if resources are tight or nobody wants it
704 nmp = (mblk_t *)NULL;
705 if (canputnext(parse->parse_queue) && (nmp = allocb(sizeof(parsetime_t), BPRI_MED)))
707 bcopy((caddr_t)&parse->parse_io.parse_dtime, (caddr_t)nmp->b_rptr, sizeof(parsetime_t));
708 nmp->b_wptr += sizeof(parsetime_t);
709 putnext(parse->parse_queue, nmp);
712 if (nmp) freemsg(nmp);
713 parse_iodone(&parse->parse_io);
722 * CD PPS support for non direct ISR hack
727 register parsestream_t * parse = (parsestream_t *)q->q_ptr;
729 timespec_t hres_time;
730 register mblk_t *nmp;
731 register int status = cd_invert ^ (type == M_UNHANGUP);
733 gethrestime(&hres_time);
734 c_time.tv.tv_sec = hres_time.tv_sec;
735 c_time.tv.tv_usec = hres_time.tv_nsec / 1000;
737 pprintf(DD_RPUT, "parse: parserput - M_%sHANGUP\n", (type == M_HANGUP) ? "" : "UN");
739 if ((parse->parse_status & PARSE_ENABLE) &&
740 parse_iopps(&parse->parse_io, status ? SYNC_ONE : SYNC_ZERO, &c_time))
742 nmp = (mblk_t *)NULL;
743 if (canputnext(parse->parse_queue) && (nmp = allocb(sizeof(parsetime_t), BPRI_MED)))
745 bcopy((caddr_t)&parse->parse_io.parse_dtime, (caddr_t)nmp->b_rptr, sizeof(parsetime_t));
746 nmp->b_wptr += sizeof(parsetime_t);
747 putnext(parse->parse_queue, nmp);
750 if (nmp) freemsg(nmp);
751 parse_iodone(&parse->parse_io);
755 if (canputnext(q) || (mp->b_datap->db_type > QPCTL))
764 parse->parse_ppsclockev.tv = c_time.tv;
765 ++(parse->parse_ppsclockev.serial);
772 static int init_zs_linemon (queue_t *, queue_t *); /* handle line monitor for "zs" driver */
773 static void close_zs_linemon (queue_t *, queue_t *);
775 /*-------------------- CD isr status monitor ---------------*/
782 register queue_t *dq;
786 * we ARE doing very bad things down here (basically stealing ISR
789 * so we chase down the STREAMS stack searching for the driver
790 * and if this is a known driver we insert our ISR routine for
791 * status changes in to the ExternalStatus handling hook
795 dq = dq->q_next; /* skip down to driver */
799 * find appropriate driver dependent routine
801 if (dq->q_qinfo && dq->q_qinfo->qi_minfo)
803 register char *dname = dq->q_qinfo->qi_minfo->mi_idname;
805 pprintf(DD_INSTALL, "init_linemon: driver is \"%s\"\n", dname);
808 if (dname && !strcmp(dname, "zs"))
810 return init_zs_linemon(dq, q);
815 pprintf(DD_INSTALL, "init_linemon: driver \"%s\" not suitable for CD monitoring\n", dname);
819 pprintf(DD_INSTALL, "init_linemon: cannot find driver\n");
830 * find appropriate driver dependent routine
832 if (q->q_qinfo && q->q_qinfo->qi_minfo)
834 register char *dname = q->q_qinfo->qi_minfo->mi_idname;
837 if (dname && !strcmp(dname, "zs"))
839 close_zs_linemon(q, my_q);
842 pprintf(DD_INSTALL, "close_linemon: cannot find driver close routine for \"%s\"\n", dname);
845 pprintf(DD_INSTALL, "close_linemon: cannot find driver name\n");
850 #include <sys/zsdev.h>
851 #include <sys/ser_async.h>
852 #include <sys/ser_zscc.h>
854 static void zs_xsisr (struct zscom *); /* zs external status interupt handler */
857 * there should be some docs telling how to get to
858 * sz:zs_usec_delay and zs:initzsops()
860 #define zs_usec_delay 5
865 struct zsops *oldzsops;
868 static struct zsops *emergencyzs;
876 register struct zscom *zs;
877 register struct savedzsops *szs;
878 register parsestream_t *parsestream = (parsestream_t *)my_q->q_ptr;
880 * we expect the zsaline pointer in the q_data pointer
881 * from there on we insert our on EXTERNAL/STATUS ISR routine
882 * into the interrupt path, before the standard handler
884 zs = ((struct asyncline *)q->q_ptr)->za_common;
888 * well - not found on startup - just say no (shouldn't happen though)
895 * we do a direct replacement, in case others fiddle also
896 * if somebody else grabs our hook and we disconnect
897 * we are in DEEP trouble - panic is likely to be next, sorry
899 szs = (struct savedzsops *) kmem_alloc(sizeof(struct savedzsops), KM_SLEEP);
901 if (szs == (struct savedzsops *)0)
903 pprintf(DD_INSTALL, "init_zs_linemon: CD monitor NOT installed - no memory\n");
909 parsestream->parse_data = (void *)szs;
911 mutex_enter(zs->zs_excl);
913 parsestream->parse_dqueue = q; /* remember driver */
915 szs->zsops = *zs->zs_ops;
916 szs->zsops.zsop_xsint = (void (*) (struct zscom *))zs_xsisr; /* place our bastard */
917 szs->oldzsops = zs->zs_ops;
918 emergencyzs = zs->zs_ops;
920 zs->zs_ops = &szs->zsops; /* hook it up */
922 * XXX: this is usually done via zsopinit()
923 * - have yet to find a way to call that routine
925 zs->zs_xsint = (void (*) (struct zscom *))zs_xsisr;
927 mutex_exit(zs->zs_excl);
929 pprintf(DD_INSTALL, "init_zs_linemon: CD monitor installed\n");
937 * unregister our ISR routine - must call under splhigh() (or
938 * whatever block ZS status interrupts)
946 register struct zscom *zs;
947 register parsestream_t *parsestream = (parsestream_t *)my_q->q_ptr;
949 zs = ((struct asyncline *)q->q_ptr)->za_common;
953 * well - not found on startup - just say no (shouldn't happen though)
959 register struct savedzsops *szs = (struct savedzsops *)parsestream->parse_data;
961 mutex_enter(zs->zs_excl);
963 zs->zs_ops = szs->oldzsops; /* reset to previous handler functions */
965 * XXX: revert xsint (usually done via zsopinit() - have still to find
966 * a way to call that bugger
968 zs->zs_xsint = zs->zs_ops->zsop_xsint;
970 mutex_exit(zs->zs_excl);
972 kmem_free((caddr_t)szs, sizeof (struct savedzsops));
974 pprintf(DD_INSTALL, "close_zs_linemon: CD monitor deleted\n");
979 #define ZSRR0_IGNORE (ZSRR0_CD|ZSRR0_SYNC|ZSRR0_CTS)
981 #define MAXDEPTH 50 /* maximum allowed stream crawl */
984 * take external status interrupt (only CD interests us)
991 register struct asyncline *za = (void *)zs->zs_priv;
993 register unsigned char zsstatus;
994 register int loopcheck;
995 register unsigned char cdstate;
996 register const char *dname = "-UNKNOWN-";
997 timespec_t hres_time;
1000 * pick up current state
1002 zsstatus = SCC_READ0();
1004 if (za->za_rr0 ^ (cdstate = zsstatus & ZSRR0_CD))
1006 timestamp_t cdevent;
1007 register int status;
1012 gethrestime(&hres_time);
1013 cdevent.tv.tv_sec = hres_time.tv_sec;
1014 cdevent.tv.tv_usec = hres_time.tv_nsec / 1000;
1016 q = za->za_ttycommon.t_readq;
1021 status = cd_invert ? cdstate == 0 : cdstate != 0;
1024 * ok - now the hard part - find ourself
1026 loopcheck = MAXDEPTH;
1030 if (q->q_qinfo && q->q_qinfo->qi_minfo)
1032 dname = q->q_qinfo->qi_minfo->mi_idname;
1034 if (!strcmp(dname, parseinfo.st_rdinit->qi_minfo->mi_idname))
1037 * back home - phew (hopping along stream queues might
1038 * prove dangerous to your health)
1041 if ((((parsestream_t *)q->q_ptr)->parse_status & PARSE_ENABLE) &&
1042 parse_iopps(&((parsestream_t *)q->q_ptr)->parse_io, status ? SYNC_ONE : SYNC_ZERO, &cdevent))
1045 * XXX - currently we do not pass up the message, as
1047 * for a correct behaviour wee need to block out
1048 * processing until parse_iodone has been posted via
1049 * a softcall-ed routine which does the message pass-up
1050 * right now PPS information relies on input being
1053 parse_iodone(&((parsestream_t *)q->q_ptr)->parse_io);
1058 ((parsestream_t *)q->q_ptr)->parse_ppsclockev.tv = cdevent.tv;
1059 ++(((parsestream_t *)q->q_ptr)->parse_ppsclockev.serial);
1062 pprintf(DD_ISR, "zs_xsisr: CD event %s has been posted for \"%s\"\n", status ? "ONE" : "ZERO", dname);
1071 panic("zs_xsisr: STREAMS Queue corrupted - CD event");
1075 if (cdstate) /* fake CARRIER status - XXX currently not coordinated */
1076 za->za_flags |= ZAS_CARR_ON;
1078 za->za_flags &= ~ZAS_CARR_ON;
1081 * only pretend that CD and ignored transistion (SYNC,CTS)
1084 za->za_rr0 = (za->za_rr0 & ~ZSRR0_IGNORE) | (zsstatus & ZSRR0_IGNORE);
1086 if (((za->za_rr0 ^ zsstatus) & ~ZSRR0_IGNORE) == 0)
1089 * all done - kill status indication and return
1091 SCC_WRITE0(ZSWR0_RESET_STATUS); /* might kill other conditions here */
1096 pprintf(DD_ISR, "zs_xsisr: non CD event 0x%x for \"%s\"\n",
1097 (za->za_rr0 ^ zsstatus) & ~ZSRR0_CD,dname);
1099 * we are now gathered here to process some unusual external status
1101 * any CD events have also been handled and shouldn't be processed
1102 * by the original routine (unless we have a VERY busy port pin)
1103 * some initializations are done here, which could have been done before for
1104 * both code paths but have been avioded for minimum path length to
1105 * the uniq_time routine
1108 q = za->za_ttycommon.t_readq;
1110 loopcheck = MAXDEPTH;
1113 * the real thing for everything else ...
1117 if (q->q_qinfo && q->q_qinfo->qi_minfo)
1119 dname = q->q_qinfo->qi_minfo->mi_idname;
1120 if (!strcmp(dname, parseinfo.st_rdinit->qi_minfo->mi_idname))
1122 register void (*zsisr) (struct zscom *);
1125 * back home - phew (hopping along stream queues might
1126 * prove dangerous to your health)
1128 if ((zsisr = ((struct savedzsops *)((parsestream_t *)q->q_ptr)->parse_data)->oldzsops->zsop_xsint))
1131 panic("zs_xsisr: unable to locate original ISR");
1133 pprintf(DD_ISR, "zs_xsisr: non CD event was processed for \"%s\"\n", dname);
1135 * now back to our program ...
1145 panic("zs_xsisr: STREAMS Queue corrupted - non CD event");
1150 * last resort - shouldn't even come here as it indicates
1151 * corrupted TTY structures
1153 printf("zs_zsisr: looking for \"%s\" - found \"%s\" - taking EMERGENCY path\n", parseinfo.st_rdinit->qi_minfo->mi_idname, dname ? dname : "-NIL-");
1155 if (emergencyzs && emergencyzs->zsop_xsint)
1156 emergencyzs->zsop_xsint(zs);
1158 panic("zs_xsisr: no emergency ISR handler");
1166 * Revision 4.11 2005/04/16 17:32:10 kardel
1169 * Revision 4.10 2004/11/14 16:06:08 kardel
1172 * Revision 4.9 2004/11/14 15:29:41 kardel
1173 * support PPSAPI, upgrade Copyright to Berkeley style
1175 * Revision 4.6 1998/11/15 21:56:08 kardel
1176 * ntp_memset not necessary
1178 * Revision 4.5 1998/11/15 21:23:37 kardel
1179 * ntp_memset() replicated in Sun kernel files
1181 * Revision 4.4 1998/06/14 21:09:40 kardel
1184 * Revision 4.3 1998/06/13 12:14:59 kardel
1187 * allow for ansi2knr
1189 * Revision 4.2 1998/06/12 15:23:08 kardel
1191 * adjust for ansi2knr
1193 * Revision 4.1 1998/05/24 09:38:46 kardel
1194 * streams initiated iopps calls (M_xHANGUP) are now consistent with the
1195 * respective calls from zs_xsisr()
1196 * simulation of CARRIER status to avoid unecessary M_xHANGUP messages
1198 * Revision 4.0 1998/04/10 19:45:38 kardel
1199 * Start 4.0 release version numbering
1201 * from V3 3.28 log info deleted 1998/04/11 kardel