/* $NetBSD: parsesolaris.c,v 1.1.1.1 2000/03/29 12:38:51 simonb Exp $ */ /* * /src/NTP/ntp-4/libparse/parsesolaris.c,v 4.6 1998/11/15 21:56:08 kardel RELEASE_19991128_A * * parsesolaris.c,v 4.6 1998/11/15 21:56:08 kardel RELEASE_19991128_A * * STREAMS module for reference clocks * * Copyright (C) 1993-1998 by Frank Kardel * derived work from parsestreams.c ((c) 1991-1993, Frank Kardel) and * dcf77sync.c((c) Frank Kardel) * Friedrich-Alexander Universität Erlangen-Nürnberg, Germany * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * */ #define _KERNEL /* it is a _KERNEL module */ #ifndef lint static char rcsid[] = "parsesolaris.c,v 4.6 1998/11/15 21:56:08 kardel RELEASE_19991128_A"; #endif #include #include #include #include #include #include #include #include #include #include #include #ifdef __GNUC__ /* makes it compile on Solaris 2.6 - acc doesn't like it -- GREAT! */ #include #endif #include "ntp_fp.h" #include "parse.h" #include /*--------------- loadable driver section -----------------------------*/ static struct streamtab parseinfo; static struct fmodsw fmod_templ = { "parse", /* module name */ &parseinfo, /* module information */ D_NEW|D_MP|D_MTQPAIR, /* exclusive for q pair */ /* lock ptr */ }; extern struct mod_ops mod_strmodops; static struct modlstrmod modlstrmod = { &mod_strmodops, /* a STREAMS module */ "PARSE - NTP reference", /* name this baby - keep room for revision number */ &fmod_templ }; static struct modlinkage modlinkage = { MODREV_1, { &modlstrmod, NULL } }; /* * module management routines */ /*ARGSUSED*/ int _init( void ) { static char revision[] = "4.6"; char *s, *S; char *t; #ifndef lint t = rcsid; #endif /* * copy RCS revision into Drv_name * * are we forcing RCS here to do things it was not built for ? */ s = revision; if (*s == '$') { /* * skip "$Revision: " * if present. - not necessary on a -kv co (cvs export) */ while (*s && (*s != ' ')) { s++; } if (*s == ' ') s++; } t = modlstrmod.strmod_linkinfo; while (*t && (*t != ' ')) { t++; } if (*t == ' ') t++; S = s; while (*S && (((*S >= '0') && (*S <= '9')) || (*S == '.'))) { S++; } if (*s && *t && (S > s)) { if (strlen(t) >= (S - s)) { (void) strncpy(t, s, (unsigned)(S - s)); } } return (mod_install(&modlinkage)); } /*ARGSUSED*/ int _info( struct modinfo *modinfop ) { return (mod_info(&modlinkage, modinfop)); } /*ARGSUSED*/ int _fini( void ) { if (mod_remove(&modlinkage) != DDI_SUCCESS) { return EBUSY; } else return DDI_SUCCESS; } /*--------------- stream module definition ----------------------------*/ static int parseopen P((queue_t *, dev_t *, int, int, cred_t *)); static int parseclose P((queue_t *, int)); static int parsewput P((queue_t *, mblk_t *)); static int parserput P((queue_t *, mblk_t *)); static int parsersvc P((queue_t *)); static struct module_info driverinfo = { 0, /* module ID number */ fmod_templ.f_name, /* module name - why repeated here ? compat ?*/ 0, /* minimum accepted packet size */ INFPSZ, /* maximum accepted packet size */ 1, /* high water mark - flow control */ 0 /* low water mark - flow control */ }; static struct qinit rinit = /* read queue definition */ { parserput, /* put procedure */ parsersvc, /* service procedure */ parseopen, /* open procedure */ parseclose, /* close procedure */ NULL, /* admin procedure - NOT USED FOR NOW */ &driverinfo, /* information structure */ NULL /* statistics */ }; static struct qinit winit = /* write queue definition */ { parsewput, /* put procedure */ NULL, /* service procedure */ NULL, /* open procedure */ NULL, /* close procedure */ NULL, /* admin procedure - NOT USED FOR NOW */ &driverinfo, /* information structure */ NULL /* statistics */ }; static struct streamtab parseinfo = /* stream info element for parse driver */ { &rinit, /* read queue */ &winit, /* write queue */ NULL, /* read mux */ NULL /* write mux */ }; /*--------------- driver data structures ----------------------------*/ /* * we usually have an inverted signal - but you * can change this to suit your needs */ int cd_invert = 1; /* invert status of CD line - PPS support via CD input */ #ifdef PARSEDEBUG int parsedebug = ~0; #else int parsedebug = 0; #endif /*--------------- module implementation -----------------------------*/ #define TIMEVAL_USADD(_X_, _US_) do {\ (_X_)->tv_usec += (_US_);\ if ((_X_)->tv_usec >= 1000000)\ {\ (_X_)->tv_sec++;\ (_X_)->tv_usec -= 1000000;\ }\ } while (0) static int init_linemon P((queue_t *)); static void close_linemon P((queue_t *, queue_t *)); #define M_PARSE 0x0001 #define M_NOPARSE 0x0002 void ntp_memset( char *a, int x, int c ) { while (c-- > 0) *a++ = x; } static void pprintf( int lev, const char *form, ... ) { va_list ap; va_start(ap, form); if (lev & parsedebug) vcmn_err(CE_CONT, (char *)form, ap); va_end(ap); } static int setup_stream( queue_t *q, int mode ) { register mblk_t *mp; pprintf(DD_OPEN,"parse: SETUP_STREAM - setting up stream for q=%x\n", q); mp = allocb(sizeof(struct stroptions), BPRI_MED); if (mp) { struct stroptions *str = (struct stroptions *)mp->b_wptr; str->so_flags = SO_READOPT|SO_HIWAT|SO_LOWAT|SO_ISNTTY; str->so_readopt = (mode == M_PARSE) ? RMSGD : RNORM; str->so_hiwat = (mode == M_PARSE) ? sizeof(parsetime_t) : 256; str->so_lowat = 0; mp->b_datap->db_type = M_SETOPTS; mp->b_wptr += sizeof(struct stroptions); if (!q) panic("NULL q - strange"); putnext(q, mp); return putctl1(WR(q)->q_next, M_CTL, (mode == M_PARSE) ? MC_SERVICEIMM : MC_SERVICEDEF); } else { pprintf(DD_OPEN, "parse: setup_stream - FAILED - no MEMORY for allocb\n"); return 0; } } /*ARGSUSED*/ static int parseopen( queue_t *q, dev_t *dev, int flag, int sflag, cred_t *credp ) { register parsestream_t *parse; static int notice = 0; pprintf(DD_OPEN, "parse: OPEN - q=%x\n", q); if (sflag != MODOPEN) { /* open only for modules */ pprintf(DD_OPEN, "parse: OPEN - FAILED - not MODOPEN\n"); return EIO; } if (q->q_ptr != (caddr_t)NULL) { pprintf(DD_OPEN, "parse: OPEN - FAILED - EXCLUSIVE ONLY\n"); return EBUSY; } q->q_ptr = (caddr_t)kmem_alloc(sizeof(parsestream_t), KM_SLEEP); if (q->q_ptr == (caddr_t)0) { return ENOMEM; } pprintf(DD_OPEN, "parse: OPEN - parse area q=%x, q->q_ptr=%x\n", q, q->q_ptr); WR(q)->q_ptr = q->q_ptr; pprintf(DD_OPEN, "parse: OPEN - WQ parse area q=%x, q->q_ptr=%x\n", WR(q), WR(q)->q_ptr); parse = (parsestream_t *) q->q_ptr; bzero((caddr_t)parse, sizeof(*parse)); parse->parse_queue = q; parse->parse_status = PARSE_ENABLE; parse->parse_ppsclockev.tv.tv_sec = 0; parse->parse_ppsclockev.tv.tv_usec = 0; parse->parse_ppsclockev.serial = 0; qprocson(q); pprintf(DD_OPEN, "parse: OPEN - initializing io subsystem q=%x\n", q); if (!parse_ioinit(&parse->parse_io)) { /* * ok guys - beat it */ qprocsoff(q); kmem_free((caddr_t)parse, sizeof(parsestream_t)); return EIO; } pprintf(DD_OPEN, "parse: OPEN - initializing stream q=%x\n", q); if (setup_stream(q, M_PARSE)) { (void) init_linemon(q); /* hook up PPS ISR routines if possible */ pprintf(DD_OPEN, "parse: OPEN - SUCCEEDED\n"); /* * I know that you know the delete key, but you didn't write this * code, did you ? - So, keep the message in here. */ if (!notice) { cmn_err(CE_CONT, "?%s: Copyright (c) 1993-1998, Frank Kardel\n", modlstrmod.strmod_linkinfo); notice = 1; } return 0; } else { qprocsoff(q); kmem_free((caddr_t)parse, sizeof(parsestream_t)); return EIO; } } /*ARGSUSED*/ static int parseclose( queue_t *q, int flags ) { register parsestream_t *parse = (parsestream_t *)q->q_ptr; register unsigned long s; pprintf(DD_CLOSE, "parse: CLOSE\n"); qprocsoff(q); s = splhigh(); if (parse->parse_dqueue) close_linemon(parse->parse_dqueue, q); parse->parse_dqueue = (queue_t *)0; (void) splx(s); parse_ioend(&parse->parse_io); kmem_free((caddr_t)parse, sizeof(parsestream_t)); q->q_ptr = (caddr_t)NULL; WR(q)->q_ptr = (caddr_t)NULL; return 0; } /* * move unrecognized stuff upward */ static int parsersvc( queue_t *q ) { mblk_t *mp; while ((mp = getq(q))) { if (canputnext(q) || (mp->b_datap->db_type > QPCTL)) { putnext(q, mp); pprintf(DD_RSVC, "parse: RSVC - putnext\n"); } else { putbq(q, mp); pprintf(DD_RSVC, "parse: RSVC - flow control wait\n"); break; } } return 0; } /* * do ioctls and * send stuff down - dont care about * flow control */ static int parsewput( queue_t *q, mblk_t *mp ) { register int ok = 1; register mblk_t *datap; register struct iocblk *iocp; parsestream_t *parse = (parsestream_t *)q->q_ptr; pprintf(DD_WPUT, "parse: parsewput\n"); switch (mp->b_datap->db_type) { default: putnext(q, mp); break; case M_IOCTL: iocp = (struct iocblk *)mp->b_rptr; switch (iocp->ioc_cmd) { default: pprintf(DD_WPUT, "parse: parsewput - forward M_IOCTL\n"); putnext(q, mp); break; case CIOGETEV: /* * taken from Craig Leres ppsclock module (and modified) */ datap = allocb(sizeof(struct ppsclockev), BPRI_MED); if (datap == NULL || mp->b_cont) { mp->b_datap->db_type = M_IOCNAK; iocp->ioc_error = (datap == NULL) ? ENOMEM : EINVAL; if (datap != NULL) freeb(datap); qreply(q, mp); break; } mp->b_cont = datap; *(struct ppsclockev *)datap->b_wptr = parse->parse_ppsclockev; datap->b_wptr += sizeof(struct ppsclockev) / sizeof(*datap->b_wptr); mp->b_datap->db_type = M_IOCACK; iocp->ioc_count = sizeof(struct ppsclockev); qreply(q, mp); break; case PARSEIOC_ENABLE: case PARSEIOC_DISABLE: { parse->parse_status = (parse->parse_status & (unsigned)~PARSE_ENABLE) | (iocp->ioc_cmd == PARSEIOC_ENABLE) ? PARSE_ENABLE : 0; if (!setup_stream(RD(q), (parse->parse_status & PARSE_ENABLE) ? M_PARSE : M_NOPARSE)) { mp->b_datap->db_type = M_IOCNAK; } else { mp->b_datap->db_type = M_IOCACK; } qreply(q, mp); break; } case PARSEIOC_TIMECODE: case PARSEIOC_SETFMT: case PARSEIOC_GETFMT: case PARSEIOC_SETCS: if (iocp->ioc_count == sizeof(parsectl_t)) { parsectl_t *dct = (parsectl_t *)mp->b_cont->b_rptr; switch (iocp->ioc_cmd) { case PARSEIOC_TIMECODE: pprintf(DD_WPUT, "parse: parsewput - PARSEIOC_TIMECODE\n"); ok = parse_timecode(dct, &parse->parse_io); break; case PARSEIOC_SETFMT: pprintf(DD_WPUT, "parse: parsewput - PARSEIOC_SETFMT\n"); ok = parse_setfmt(dct, &parse->parse_io); break; case PARSEIOC_GETFMT: pprintf(DD_WPUT, "parse: parsewput - PARSEIOC_GETFMT\n"); ok = parse_getfmt(dct, &parse->parse_io); break; case PARSEIOC_SETCS: pprintf(DD_WPUT, "parse: parsewput - PARSEIOC_SETCS\n"); ok = parse_setcs(dct, &parse->parse_io); break; } mp->b_datap->db_type = ok ? M_IOCACK : M_IOCNAK; } else { mp->b_datap->db_type = M_IOCNAK; } pprintf(DD_WPUT, "parse: parsewput qreply - %s\n", (mp->b_datap->db_type == M_IOCNAK) ? "M_IOCNAK" : "M_IOCACK"); qreply(q, mp); break; } } return 0; } /* * read characters from streams buffers */ static unsigned long rdchar( mblk_t **mp ) { while (*mp != (mblk_t *)NULL) { if ((*mp)->b_wptr - (*mp)->b_rptr) { return (unsigned long)(*(unsigned char *)((*mp)->b_rptr++)); } else { register mblk_t *mmp = *mp; *mp = (*mp)->b_cont; freeb(mmp); } } return (unsigned)~0; } /* * convert incoming data */ static int parserput( queue_t *q, mblk_t *imp ) { register unsigned char type; mblk_t *mp = imp; switch (type = mp->b_datap->db_type) { default: /* * anything we don't know will be put on queue * the service routine will move it to the next one */ pprintf(DD_RPUT, "parse: parserput - forward type 0x%x\n", type); if (canputnext(q) || (mp->b_datap->db_type > QPCTL)) { putnext(q, mp); } else putq(q, mp); break; case M_BREAK: case M_DATA: { register parsestream_t * parse = (parsestream_t *)q->q_ptr; register mblk_t *nmp; register unsigned long ch; timestamp_t ctime; timespec_t hres_time; /* * get time on packet delivery */ gethrestime(&hres_time); ctime.tv.tv_sec = hres_time.tv_sec; ctime.tv.tv_usec = hres_time.tv_nsec / 1000; if (!(parse->parse_status & PARSE_ENABLE)) { pprintf(DD_RPUT, "parse: parserput - parser disabled - forward type 0x%x\n", type); if (canputnext(q) || (mp->b_datap->db_type > QPCTL)) { putnext(q, mp); } else putq(q, mp); } else { pprintf(DD_RPUT, "parse: parserput - M_%s\n", (type == M_DATA) ? "DATA" : "BREAK"); if (type == M_DATA) { /* * parse packet looking for start an end characters */ while (mp != (mblk_t *)NULL) { ch = rdchar(&mp); if (ch != ~0 && parse_ioread(&parse->parse_io, (unsigned int)ch, &ctime)) { /* * up up and away (hopefully ...) * don't press it if resources are tight or nobody wants it */ nmp = (mblk_t *)NULL; if (canputnext(parse->parse_queue) && (nmp = allocb(sizeof(parsetime_t), BPRI_MED))) { bcopy((caddr_t)&parse->parse_io.parse_dtime, (caddr_t)nmp->b_rptr, sizeof(parsetime_t)); nmp->b_wptr += sizeof(parsetime_t); putnext(parse->parse_queue, nmp); } else if (nmp) freemsg(nmp); parse_iodone(&parse->parse_io); } } } else { if (parse_ioread(&parse->parse_io, (unsigned int)0, &ctime)) { /* * up up and away (hopefully ...) * don't press it if resources are tight or nobody wants it */ nmp = (mblk_t *)NULL; if (canputnext(parse->parse_queue) && (nmp = allocb(sizeof(parsetime_t), BPRI_MED))) { bcopy((caddr_t)&parse->parse_io.parse_dtime, (caddr_t)nmp->b_rptr, sizeof(parsetime_t)); nmp->b_wptr += sizeof(parsetime_t); putnext(parse->parse_queue, nmp); } else if (nmp) freemsg(nmp); parse_iodone(&parse->parse_io); } freemsg(mp); } break; } } /* * CD PPS support for non direct ISR hack */ case M_HANGUP: case M_UNHANGUP: { register parsestream_t * parse = (parsestream_t *)q->q_ptr; timestamp_t ctime; timespec_t hres_time; register mblk_t *nmp; register int status = cd_invert ^ (type == M_UNHANGUP); gethrestime(&hres_time); ctime.tv.tv_sec = hres_time.tv_sec; ctime.tv.tv_usec = hres_time.tv_nsec / 1000; pprintf(DD_RPUT, "parse: parserput - M_%sHANGUP\n", (type == M_HANGUP) ? "" : "UN"); if ((parse->parse_status & PARSE_ENABLE) && parse_iopps(&parse->parse_io, status ? SYNC_ONE : SYNC_ZERO, &ctime)) { nmp = (mblk_t *)NULL; if (canputnext(parse->parse_queue) && (nmp = allocb(sizeof(parsetime_t), BPRI_MED))) { bcopy((caddr_t)&parse->parse_io.parse_dtime, (caddr_t)nmp->b_rptr, sizeof(parsetime_t)); nmp->b_wptr += sizeof(parsetime_t); putnext(parse->parse_queue, nmp); } else if (nmp) freemsg(nmp); parse_iodone(&parse->parse_io); freemsg(mp); } else if (canputnext(q) || (mp->b_datap->db_type > QPCTL)) { putnext(q, mp); } else putq(q, mp); if (status) { parse->parse_ppsclockev.tv = ctime.tv; ++(parse->parse_ppsclockev.serial); } } } return 0; } static int init_zs_linemon P((queue_t *, queue_t *)); /* handle line monitor for "zs" driver */ static void close_zs_linemon P((queue_t *, queue_t *)); /*-------------------- CD isr status monitor ---------------*/ static int init_linemon( queue_t *q ) { register queue_t *dq; dq = WR(q); /* * we ARE doing very bad things down here (basically stealing ISR * hooks) * * so we chase down the STREAMS stack searching for the driver * and if this is a known driver we insert our ISR routine for * status changes in to the ExternalStatus handling hook */ while (dq->q_next) { dq = dq->q_next; /* skip down to driver */ } /* * find appropriate driver dependent routine */ if (dq->q_qinfo && dq->q_qinfo->qi_minfo) { register char *dname = dq->q_qinfo->qi_minfo->mi_idname; pprintf(DD_INSTALL, "init_linemon: driver is \"%s\"\n", dname); #ifdef sun if (dname && !strcmp(dname, "zs")) { return init_zs_linemon(dq, q); } else #endif { pprintf(DD_INSTALL, "init_linemon: driver \"%s\" not suitable for CD monitoring\n", dname); return 0; } } pprintf(DD_INSTALL, "init_linemon: cannot find driver\n"); return 0; } static void close_linemon( queue_t *q, queue_t *my_q ) { /* * find appropriate driver dependent routine */ if (q->q_qinfo && q->q_qinfo->qi_minfo) { register char *dname = q->q_qinfo->qi_minfo->mi_idname; #ifdef sun if (dname && !strcmp(dname, "zs")) { close_zs_linemon(q, my_q); return; } pprintf(DD_INSTALL, "close_linemon: cannot find driver close routine for \"%s\"\n", dname); #endif } pprintf(DD_INSTALL, "close_linemon: cannot find driver name\n"); } #ifdef sun #include #include #include #include static void zs_xsisr P((struct zscom *)); /* zs external status interupt handler */ /* * there should be some docs telling how to get to * sz:zs_usec_delay and zs:initzsops() */ #define zs_usec_delay 5 struct savedzsops { struct zsops zsops; struct zsops *oldzsops; }; static struct zsops *emergencyzs; static int init_zs_linemon( queue_t *q, queue_t *my_q ) { register struct zscom *zs; register struct savedzsops *szs; register parsestream_t *parsestream = (parsestream_t *)my_q->q_ptr; /* * we expect the zsaline pointer in the q_data pointer * from there on we insert our on EXTERNAL/STATUS ISR routine * into the interrupt path, before the standard handler */ zs = ((struct asyncline *)q->q_ptr)->za_common; if (!zs) { /* * well - not found on startup - just say no (shouldn't happen though) */ return 0; } else { /* * we do a direct replacement, in case others fiddle also * if somebody else grabs our hook and we disconnect * we are in DEEP trouble - panic is likely to be next, sorry */ szs = (struct savedzsops *) kmem_alloc(sizeof(struct savedzsops), KM_SLEEP); if (szs == (struct savedzsops *)0) { pprintf(DD_INSTALL, "init_zs_linemon: CD monitor NOT installed - no memory\n"); return 0; } else { parsestream->parse_data = (void *)szs; mutex_enter(zs->zs_excl); parsestream->parse_dqueue = q; /* remember driver */ szs->zsops = *zs->zs_ops; szs->zsops.zsop_xsint = (void (*) P((struct zscom *)))zs_xsisr; /* place our bastard */ szs->oldzsops = zs->zs_ops; emergencyzs = zs->zs_ops; zs->zs_ops = &szs->zsops; /* hook it up */ /* * XXX: this is usually done via zsopinit() * - have yet to find a way to call that routine */ zs->zs_xsint = (void (*) P((struct zscom *)))zs_xsisr; mutex_exit(zs->zs_excl); pprintf(DD_INSTALL, "init_zs_linemon: CD monitor installed\n"); return 1; } } } /* * unregister our ISR routine - must call under splhigh() (or * whatever block ZS status interrupts) */ static void close_zs_linemon( queue_t *q, queue_t *my_q ) { register struct zscom *zs; register parsestream_t *parsestream = (parsestream_t *)my_q->q_ptr; zs = ((struct asyncline *)q->q_ptr)->za_common; if (!zs) { /* * well - not found on startup - just say no (shouldn't happen though) */ return; } else { register struct savedzsops *szs = (struct savedzsops *)parsestream->parse_data; mutex_enter(zs->zs_excl); zs->zs_ops = szs->oldzsops; /* reset to previous handler functions */ /* * XXX: revert xsint (usually done via zsopinit() - have still to find * a way to call that bugger */ zs->zs_xsint = zs->zs_ops->zsop_xsint; mutex_exit(zs->zs_excl); kmem_free((caddr_t)szs, sizeof (struct savedzsops)); pprintf(DD_INSTALL, "close_zs_linemon: CD monitor deleted\n"); return; } } #define ZSRR0_IGNORE (ZSRR0_CD|ZSRR0_SYNC|ZSRR0_CTS) #define MAXDEPTH 50 /* maximum allowed stream crawl */ /* * take external status interrupt (only CD interests us) */ static void zs_xsisr( struct zscom *zs ) { register struct asyncline *za = (struct asyncline *)zs->zs_priv; register queue_t *q; register unsigned char zsstatus; register int loopcheck; register unsigned char cdstate; register const char *dname = "-UNKNOWN-"; timespec_t hres_time; /* * pick up current state */ zsstatus = SCC_READ0(); if (za->za_rr0 ^ (cdstate = zsstatus & ZSRR0_CD)) { timestamp_t cdevent; register int status; /* * time stamp */ gethrestime(&hres_time); cdevent.tv.tv_sec = hres_time.tv_sec; cdevent.tv.tv_usec = hres_time.tv_nsec / 1000; q = za->za_ttycommon.t_readq; /* * logical state */ status = cd_invert ? cdstate == 0 : cdstate != 0; /* * ok - now the hard part - find ourself */ loopcheck = MAXDEPTH; while (q) { if (q->q_qinfo && q->q_qinfo->qi_minfo) { dname = q->q_qinfo->qi_minfo->mi_idname; if (!strcmp(dname, parseinfo.st_rdinit->qi_minfo->mi_idname)) { /* * back home - phew (hopping along stream queues might * prove dangerous to your health) */ if ((((parsestream_t *)q->q_ptr)->parse_status & PARSE_ENABLE) && parse_iopps(&((parsestream_t *)q->q_ptr)->parse_io, status ? SYNC_ONE : SYNC_ZERO, &cdevent)) { /* * XXX - currently we do not pass up the message, as * we should. * for a correct behaviour wee need to block out * processing until parse_iodone has been posted via * a softcall-ed routine which does the message pass-up * right now PPS information relies on input being * received */ parse_iodone(&((parsestream_t *)q->q_ptr)->parse_io); } if (status) { ((parsestream_t *)q->q_ptr)->parse_ppsclockev.tv = cdevent.tv; ++(((parsestream_t *)q->q_ptr)->parse_ppsclockev.serial); } pprintf(DD_ISR, "zs_xsisr: CD event %s has been posted for \"%s\"\n", status ? "ONE" : "ZERO", dname); break; } } q = q->q_next; if (!loopcheck--) { panic("zs_xsisr: STREAMS Queue corrupted - CD event"); } } if (cdstate) /* fake CARRIER status - XXX currently not coordinated */ za->za_flags |= ZAS_CARR_ON; else za->za_flags &= ~ZAS_CARR_ON; /* * only pretend that CD and ignored transistion (SYNC,CTS) * have been handled */ za->za_rr0 = (za->za_rr0 & ~ZSRR0_IGNORE) | (zsstatus & ZSRR0_IGNORE); if (((za->za_rr0 ^ zsstatus) & ~ZSRR0_IGNORE) == 0) { /* * all done - kill status indication and return */ SCC_WRITE0(ZSWR0_RESET_STATUS); /* might kill other conditions here */ return; } } pprintf(DD_ISR, "zs_xsisr: non CD event 0x%x for \"%s\"\n", (za->za_rr0 ^ zsstatus) & ~ZSRR0_CD,dname); /* * we are now gathered here to process some unusual external status * interrupts. * any CD events have also been handled and shouldn't be processed * by the original routine (unless we have a VERY busy port pin) * some initializations are done here, which could have been done before for * both code paths but have been avioded for minimum path length to * the uniq_time routine */ dname = (char *) 0; q = za->za_ttycommon.t_readq; loopcheck = MAXDEPTH; /* * the real thing for everything else ... */ while (q) { if (q->q_qinfo && q->q_qinfo->qi_minfo) { dname = q->q_qinfo->qi_minfo->mi_idname; if (!strcmp(dname, parseinfo.st_rdinit->qi_minfo->mi_idname)) { register void (*zsisr) P((struct zscom *)); /* * back home - phew (hopping along stream queues might * prove dangerous to your health) */ if ((zsisr = ((struct savedzsops *)((parsestream_t *)q->q_ptr)->parse_data)->oldzsops->zsop_xsint)) zsisr(zs); else panic("zs_xsisr: unable to locate original ISR"); pprintf(DD_ISR, "zs_xsisr: non CD event was processed for \"%s\"\n", dname); /* * now back to our program ... */ return; } } q = q->q_next; if (!loopcheck--) { panic("zs_xsisr: STREAMS Queue corrupted - non CD event"); } } /* * last resort - shouldn't even come here as it indicates * corrupted TTY structures */ printf("zs_zsisr: looking for \"%s\" - found \"%s\" - taking EMERGENCY path\n", parseinfo.st_rdinit->qi_minfo->mi_idname, dname ? dname : "-NIL-"); if (emergencyzs && emergencyzs->zsop_xsint) emergencyzs->zsop_xsint(zs); else panic("zs_xsisr: no emergency ISR handler"); } #endif /* sun */ /* * History: * * parsesolaris.c,v * Revision 4.6 1998/11/15 21:56:08 kardel * ntp_memset not necessary * * Revision 4.5 1998/11/15 21:23:37 kardel * ntp_memset() replicated in Sun kernel files * * Revision 4.4 1998/06/14 21:09:40 kardel * Sun acc cleanup * * Revision 4.3 1998/06/13 12:14:59 kardel * more prototypes * fix name clashes * allow for ansi2knr * * Revision 4.2 1998/06/12 15:23:08 kardel * fix prototypes * adjust for ansi2knr * * Revision 4.1 1998/05/24 09:38:46 kardel * streams initiated iopps calls (M_xHANGUP) are now consistent with the * respective calls from zs_xsisr() * simulation of CARRIER status to avoid unecessary M_xHANGUP messages * * Revision 4.0 1998/04/10 19:45:38 kardel * Start 4.0 release version numbering * * from V3 3.28 log info deleted 1998/04/11 kardel */