523 lines
14 KiB
C
523 lines
14 KiB
C
/* recMbbo.c */
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/* share/src/rec $Id$ */
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/* recMbbo.c - Record Support Routines for multi bit binary Output records */
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/*
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* Original Author: Bob Dalesio
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* Current Author: Marty Kraimer
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* Date: 7-17-87
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*
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* Experimental Physics and Industrial Control System (EPICS)
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*
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* Copyright 1991, the Regents of the University of California,
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* and the University of Chicago Board of Governors.
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*
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* This software was produced under U.S. Government contracts:
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* (W-7405-ENG-36) at the Los Alamos National Laboratory,
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* and (W-31-109-ENG-38) at Argonne National Laboratory.
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*
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* Initial development by:
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* The Controls and Automation Group (AT-8)
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* Ground Test Accelerator
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* Accelerator Technology Division
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* Los Alamos National Laboratory
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*
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* Co-developed with
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* The Controls and Computing Group
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* Accelerator Systems Division
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* Advanced Photon Source
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* Argonne National Laboratory
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*
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* Modification Log:
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* -----------------
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* .01 11-28-88 lrd add desired value fetched
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* .02 12-12-88 lrd lock the record while processing
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* .03 12-15-88 lrd Process the forward scan link
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* .04 12-23-88 lrd Alarm on locked MAX_LOCKED times
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* .05 01-09-89 lrd Fix direct value outputs so that they shift the
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* value into the correct bit position
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* .06 01-13-89 lrd delete db_write_mbbo and db_write_mbbo
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* .07 01-20-89 lrd fixed vx inlcudes
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* .08 03-03-89 lrd add supervisory/closed loop control
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* .09 03-29-89 lrd make hardware errors MAJOR
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* remove hw severity spec from database
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* .10 04-07-89 lrd add monitor service
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* .11 05-03-89 lrd removed process mask from arg list
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* .12 05-30-89 lrd fixed mask for allen-bradley IO
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* .13 01-05-90 joh,lrd fixed write_mbbo() to set rval
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* .14 02-08-90 lrd/cr fixed the mbbo to read at initialization for
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* Allen-Bradley and added PLC support
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* .15 04-11-90 lrd make locals static
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* .16 10-11-90 mrk make changes for new record and device support
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* .17 11-11-91 jba Moved set and reset of alarm stat and sevr to macros
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* .18 02-05-92 jba Changed function arguments from paddr to precord
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* .19 02-28-92 jba ANSI C changes
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* .20 04-10-92 jba pact now used to test for asyn processing, not status
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* .21 04-18-92 jba removed process from dev init_record parms
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* .22 07-15-92 jba changed VALID_ALARM to INVALID alarm
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* .23 07-16-92 jba added invalid alarm fwd link test and chngd fwd lnk to macro
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* .24 08-14-92 jba Added simulation processing
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* .25 08-19-92 jba Added code for invalid alarm output action
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*/
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#include <vxWorks.h>
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#include <types.h>
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#include <stdioLib.h>
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#include <lstLib.h>
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#include <string.h>
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#include <alarm.h>
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#include <dbDefs.h>
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#include <dbAccess.h>
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#include <dbFldTypes.h>
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#include <devSup.h>
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#include <errMdef.h>
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#include <recSup.h>
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#include <special.h>
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#include <mbboRecord.h>
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/* Create RSET - Record Support Entry Table*/
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#define report NULL
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#define initialize NULL
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static long init_record();
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static long process();
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static long special();
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static long get_value();
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#define cvt_dbaddr NULL
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#define get_array_info NULL
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#define put_array_info NULL
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#define get_units NULL
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#define get_precision NULL
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static long get_enum_str();
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static long get_enum_strs();
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static long put_enum_str();
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#define get_graphic_double NULL
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#define get_control_double NULL
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#define get_alarm_double NULL
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struct rset mbboRSET={
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RSETNUMBER,
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report,
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initialize,
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init_record,
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process,
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special,
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get_value,
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cvt_dbaddr,
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get_array_info,
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put_array_info,
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get_units,
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get_precision,
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get_enum_str,
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get_enum_strs,
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put_enum_str,
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get_graphic_double,
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get_control_double,
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get_alarm_double };
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struct mbbodset { /* multi bit binary output dset */
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long number;
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DEVSUPFUN dev_report;
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DEVSUPFUN init;
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DEVSUPFUN init_record; /*returns: (0,2)=>(success,success no convert)*/
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DEVSUPFUN get_ioint_info;
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DEVSUPFUN write_mbbo; /*returns: (0,2)=>(success,success no convert)*/
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};
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static void alarm();
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static void convert();
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static void monitor();
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static long writeValue();
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static void init_common(pmbbo)
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struct mbboRecord *pmbbo;
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{
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unsigned long *pstate_values;
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short i;
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/* determine if any states are defined */
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pstate_values = &(pmbbo->zrvl);
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pmbbo->sdef = FALSE;
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for (i=0; i<16; i++) {
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if (*(pstate_values+i)!= 0) {
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pmbbo->sdef = TRUE;
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return;
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}
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}
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return;
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}
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static long init_record(pmbbo,pass)
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struct mbboRecord *pmbbo;
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int pass;
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{
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struct mbbodset *pdset;
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long status;
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int i;
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if (pass==0) return(0);
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/* mbbo.siml must be a CONSTANT or a PV_LINK or a DB_LINK */
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switch (pmbbo->siml.type) {
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case (CONSTANT) :
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pmbbo->simm = pmbbo->siml.value.value;
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break;
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case (PV_LINK) :
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status = dbCaAddInlink(&(pmbbo->siml), (void *) pmbbo, "SIMM");
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if(status) return(status);
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break;
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case (DB_LINK) :
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break;
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default :
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recGblRecordError(S_db_badField,(void *)pmbbo,
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"mbbo: init_record Illegal SIML field");
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return(S_db_badField);
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}
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/* mbbo.siol may be a PV_LINK */
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if (pmbbo->siol.type == PV_LINK){
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status = dbCaAddOutlink(&(pmbbo->siol), (void *) pmbbo, "VAL");
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if(status) return(status);
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}
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if(!(pdset = (struct mbbodset *)(pmbbo->dset))) {
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recGblRecordError(S_dev_noDSET,(void *)pmbbo,"mbbo: init_record");
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return(S_dev_noDSET);
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}
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/* must have write_mbbo function defined */
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if( (pdset->number < 5) || (pdset->write_mbbo == NULL) ) {
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recGblRecordError(S_dev_missingSup,(void *)pmbbo,"mbbo: init_record");
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return(S_dev_missingSup);
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}
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if (pmbbo->dol.type == CONSTANT){
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pmbbo->val = pmbbo->dol.value.value;
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pmbbo->udf = FALSE;
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}
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/* initialize mask*/
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pmbbo->mask = 0;
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for (i=0; i<pmbbo->nobt; i++) {
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pmbbo->mask <<= 1; /* shift left 1 bit*/
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pmbbo->mask |= 1; /* set low order bit*/
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}
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if( pdset->init_record ) {
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unsigned long rval;
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status=(*pdset->init_record)(pmbbo);
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/* init_record might set status */
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init_common(pmbbo);
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if(status==0){
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rval = pmbbo->rval;
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if(pmbbo->shft>0) rval >>= pmbbo->shft;
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if (pmbbo->sdef){
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unsigned long *pstate_values;
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short i;
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pstate_values = &(pmbbo->zrvl);
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pmbbo->val = 65535; /* initalize to unknown state*/
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for (i = 0; i < 16; i++){
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if (*pstate_values == rval){
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pmbbo->val = i;
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break;
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}
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pstate_values++;
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}
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}else{
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/* the raw is the desired val */
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pmbbo->val = (unsigned short)rval;
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}
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pmbbo->udf = FALSE;
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} else if (status==2) status=0;
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}
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init_common(pmbbo);
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return(0);
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}
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static long process(pmbbo)
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struct mbboRecord *pmbbo;
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{
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struct mbbodset *pdset = (struct mbbodset *)(pmbbo->dset);
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long status=0;
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unsigned char pact=pmbbo->pact;
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if( (pdset==NULL) || (pdset->write_mbbo==NULL) ) {
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pmbbo->pact=TRUE;
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recGblRecordError(S_dev_missingSup,(void *)pmbbo,"write_mbbo");
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return(S_dev_missingSup);
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}
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if (!pmbbo->pact) {
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if(pmbbo->dol.type==DB_LINK && pmbbo->omsl==CLOSED_LOOP){
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long options=0;
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long nRequest=1;
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long status;
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unsigned short val;
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pmbbo->pact = TRUE;
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status = dbGetLink(&pmbbo->dol.value.db_link,(struct dbCommon *)pmbbo,DBR_USHORT,
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&val,&options,&nRequest);
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pmbbo->pact = FALSE;
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if(status==0) {
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pmbbo->val= val;
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pmbbo->udf= FALSE;
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} else {
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recGblSetSevr(pmbbo,LINK_ALARM,INVALID_ALARM);
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goto CONTINUE;
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}
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}
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if(pmbbo->udf==TRUE) {
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recGblSetSevr(pmbbo,UDF_ALARM,INVALID_ALARM);
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goto CONTINUE;
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}
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/* convert val to rval */
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convert(pmbbo);
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}
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CONTINUE:
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/* check for alarms */
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alarm(pmbbo);
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if (pmbbo->nsev < INVALID_ALARM )
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status=writeValue(pmbbo); /* write the new value */
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else {
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switch (pmbbo->ivoa) {
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case (IVOA_CONTINUE) :
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status=writeValue(pmbbo); /* write the new value */
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break;
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case (IVOA_NO_OUTPUT) :
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break;
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case (IVOA_OUTPUT_IVOV) :
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if (pmbbo->pact == FALSE){
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pmbbo->val=pmbbo->ivov;
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convert(pmbbo);
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}
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status=writeValue(pmbbo); /* write the new value */
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break;
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default :
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status=-1;
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recGblRecordError(S_db_badField,(void *)pmbbo,
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"mbbo:process Illegal IVOA field");
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}
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}
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/* check if device support set pact */
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if ( !pact && pmbbo->pact ) return(0);
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pmbbo->pact = TRUE;
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tsLocalTime(&pmbbo->time);
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/* check event list */
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monitor(pmbbo);
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/* process the forward scan link record */
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recGblFwdLink(pmbbo);
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pmbbo->pact=FALSE;
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return(status);
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}
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static long special(paddr,after)
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struct dbAddr *paddr;
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int after;
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{
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struct mbboRecord *pmbbo = (struct mbboRecord *)(paddr->precord);
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int special_type = paddr->special;
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if(!after) return(0);
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switch(special_type) {
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case(SPC_MOD):
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init_common(pmbbo);
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return(0);
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default:
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recGblDbaddrError(S_db_badChoice,paddr,"mbbo: special");
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return(S_db_badChoice);
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}
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}
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static long get_value(pmbbo,pvdes)
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struct mbboRecord *pmbbo;
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struct valueDes *pvdes;
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{
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pvdes->field_type = DBF_ENUM;
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pvdes->no_elements=1;
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(unsigned short *)(pvdes->pvalue) = &pmbbo->val;
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return(0);
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}
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static long get_enum_str(paddr,pstring)
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struct dbAddr *paddr;
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char *pstring;
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{
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struct mbboRecord *pmbbo=(struct mbboRecord *)paddr->precord;
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char *psource;
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unsigned short val=pmbbo->val;
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if(val<= 15) {
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psource = (pmbbo->zrst);
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psource += (val * sizeof(pmbbo->zrst));
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strncpy(pstring,psource,sizeof(pmbbo->zrst));
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} else {
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strcpy(pstring,"Illegal Value");
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}
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return(0);
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}
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static long get_enum_strs(paddr,pes)
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struct dbAddr *paddr;
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struct dbr_enumStrs *pes;
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{
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struct mbboRecord *pmbbo=(struct mbboRecord *)paddr->precord;
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char *psource;
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int i;
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short no_str;
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no_str=0;
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memset(pes->strs,'\0',sizeof(pes->strs));
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for(i=0,psource=(pmbbo->zrst); i<16; i++, psource += sizeof(pmbbo->zrst) ) {
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strncpy(pes->strs[i],psource,sizeof(pmbbo->zrst));
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if(*psource!=0)no_str=i+1;
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}
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pes->no_str = no_str;
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return(0);
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}
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static long put_enum_str(paddr,pstring)
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struct dbAddr *paddr;
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char *pstring;
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{
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struct mbboRecord *pmbbo=(struct mbboRecord *)paddr->precord;
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char *pstate_name;
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short i;
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if (pmbbo->sdef){
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pstate_name = pmbbo->zrst;
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for (i = 0; i < 16; i++){
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if(strncmp(pstate_name,pstring,sizeof(pmbbo->zrst))==0){
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pmbbo->val = i;
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return(0);
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}
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pstate_name += sizeof(pmbbo->zrst);
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}
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}
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return(S_db_badChoice);
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}
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static void alarm(pmbbo)
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struct mbboRecord *pmbbo;
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{
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unsigned short *severities;
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unsigned short val=pmbbo->val;
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/* check for state alarm */
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/* unknown state */
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if (val > 15){
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recGblSetSevr(pmbbo,STATE_ALARM,pmbbo->unsv);
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} else {
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/* in a state which is an error */
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severities = (unsigned short *)&(pmbbo->zrsv);
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recGblSetSevr(pmbbo,STATE_ALARM,severities[pmbbo->val]);
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}
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/* check for cos alarm */
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if(val == pmbbo->lalm) return;
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if(recGblSetSevr(pmbbo,COS_ALARM,pmbbo->cosv)) return;
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pmbbo->lalm = val;
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return;
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}
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static void monitor(pmbbo)
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struct mbboRecord *pmbbo;
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{
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unsigned short monitor_mask;
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short stat,sevr,nsta,nsev;
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/* get previous stat and sevr and new stat and sevr*/
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recGblResetSevr(pmbbo,stat,sevr,nsta,nsev);
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monitor_mask = 0;
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/* alarm condition changed this scan */
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if (stat!=nsta || sevr!=nsev){
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/* post events for alarm condition change*/
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monitor_mask = DBE_ALARM;
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/* post stat and sevr fields */
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db_post_events(pmbbo,&pmbbo->stat,DBE_VALUE);
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db_post_events(pmbbo,&pmbbo->sevr,DBE_VALUE);
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}
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/* check for value change */
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if (pmbbo->mlst != pmbbo->val){
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/* post events for value change and archive change */
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monitor_mask |= (DBE_VALUE | DBE_LOG);
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/* update last value monitored */
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pmbbo->mlst = pmbbo->val;
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}
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/* send out monitors connected to the value field */
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if (monitor_mask){
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db_post_events(pmbbo,&pmbbo->val,monitor_mask);
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}
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if(pmbbo->oraw!=pmbbo->rval) {
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db_post_events(pmbbo,&pmbbo->rval,monitor_mask|DBE_VALUE);
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pmbbo->oraw = pmbbo->rval;
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}
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if(pmbbo->orbv!=pmbbo->rbv) {
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db_post_events(pmbbo,&pmbbo->rbv,monitor_mask|DBE_VALUE);
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pmbbo->orbv = pmbbo->rbv;
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}
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return;
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}
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static void convert(pmbbo)
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struct mbboRecord *pmbbo;
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{
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unsigned long *pvalues = &(pmbbo->zrvl);
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/* convert val to rval */
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if(pmbbo->sdef) {
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if(pmbbo->val>15) {
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recGblSetSevr(pmbbo,SOFT_ALARM,INVALID_ALARM);
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return;
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}
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pmbbo->rval = pvalues[pmbbo->val];
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} else pmbbo->rval = (unsigned long)(pmbbo->val);
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if(pmbbo->shft>0) pmbbo->rval <<= pmbbo->shft;
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return;
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}
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static long writeValue(pmbbo)
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struct mbboRecord *pmbbo;
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{
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long status;
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struct mbbodset *pdset = (struct mbbodset *) (pmbbo->dset);
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long nRequest=1;
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long options=0;
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if (pmbbo->pact == TRUE){
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status=(*pdset->write_mbbo)(pmbbo);
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return(status);
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}
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status=recGblGetLinkValue(&(pmbbo->siml),
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(void *)pmbbo,DBR_ENUM,&(pmbbo->simm),&options,&nRequest);
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if (status)
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return(status);
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if (pmbbo->simm == NO){
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status=(*pdset->write_mbbo)(pmbbo);
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return(status);
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}
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if (pmbbo->simm == YES){
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status=recGblPutLinkValue(&(pmbbo->siol),
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(void *)pmbbo,DBR_USHORT,&(pmbbo->val),&nRequest);
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} else {
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status=-1;
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recGblSetSevr(pmbbo,SOFT_ALARM,INVALID_ALARM);
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return(status);
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}
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recGblSetSevr(pmbbo,SIMM_ALARM,pmbbo->sims);
|
||
|
||
return(status);
|
||
}
|