264 lines
6.6 KiB
C
264 lines
6.6 KiB
C
/*************************************************************************\
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* Copyright (c) 2012 UChicago Argonne LLC, as Operator of Argonne
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* National Laboratory.
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* Copyright (c) 2002 The Regents of the University of California, as
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* Operator of Los Alamos National Laboratory.
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* Copyright (c) 2002 Southeastern Universities Research Association, as
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* Operator of Thomas Jefferson National Accelerator Facility.
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* EPICS BASE is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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\*************************************************************************/
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/* $Revision-Id$ */
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/* mbbiDirectRecord.c - Record Support routines for mbboDirect records */
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/*
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* Original Authors: Bob Dalesio and Matthew Needes
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* Date: 10-07-93
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*/
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include "dbDefs.h"
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#include "errlog.h"
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#include "alarm.h"
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#include "dbAccess.h"
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#include "dbEvent.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 "menuSimm.h"
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#include "recSup.h"
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#include "recGbl.h"
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#include "special.h"
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#define GEN_SIZE_OFFSET
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#include "mbbiDirectRecord.h"
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#undef GEN_SIZE_OFFSET
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#include "epicsExport.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(mbbiDirectRecord *, int);
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static long process(mbbiDirectRecord *);
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#define special NULL
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#define get_value NULL
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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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#define get_enum_str NULL
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#define get_enum_strs NULL
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#define put_enum_str NULL
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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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rset mbbiDirectRSET={
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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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};
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epicsExportAddress(rset,mbbiDirectRSET);
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struct mbbidset { /* multi bit binary input 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: (-1,0)=>(failure, success)*/
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DEVSUPFUN get_ioint_info;
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DEVSUPFUN read_mbbi; /*returns: (0,2)=>(success, success no convert)*/
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};
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static void monitor(mbbiDirectRecord *);
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static long readValue(mbbiDirectRecord *);
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#define NUM_BITS 16
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static long init_record(mbbiDirectRecord *prec, int pass)
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{
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struct mbbidset *pdset = (struct mbbidset *) prec->dset;
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long status = 0;
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if (pass == 0)
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return status;
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if (!pdset) {
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recGblRecordError(S_dev_noDSET, prec, "mbbiDirect: init_record");
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return S_dev_noDSET;
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}
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if ((pdset->number < 5) || (pdset->read_mbbi == NULL)) {
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recGblRecordError(S_dev_missingSup, prec, "mbbiDirect: init_record");
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return S_dev_missingSup;
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}
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if (prec->siml.type == CONSTANT)
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recGblInitConstantLink(&prec->siml, DBF_USHORT, &prec->simm);
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if (prec->siol.type == CONSTANT)
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recGblInitConstantLink(&prec->siol, DBF_USHORT, &prec->sval);
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/* Initialize MASK if the user didn't */
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if (prec->mask == 0)
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prec->mask = (1 << prec->nobt) - 1;
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if (pdset->init_record) {
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status = pdset->init_record(prec);
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if (status == 0) {
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epicsUInt16 val = prec->val;
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epicsUInt8 *pBn = &prec->b0;
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int i;
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/* Initialize B0 - BF from VAL */
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for (i = 0; i < NUM_BITS; i++, pBn++, val >>= 1)
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*pBn = !! (val & 1);
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}
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}
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prec->mlst = prec->val;
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prec->oraw = prec->rval;
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return status;
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}
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static long process(mbbiDirectRecord *prec)
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{
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struct mbbidset *pdset = (struct mbbidset *) prec->dset;
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long status;
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int pact = prec->pact;
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if ((pdset == NULL) || (pdset->read_mbbi == NULL)) {
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prec->pact = TRUE;
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recGblRecordError(S_dev_missingSup, prec, "read_mbbi");
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return S_dev_missingSup;
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}
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status = readValue(prec);
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/* Done if device support set PACT */
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if (!pact && prec->pact)
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return 0;
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prec->pact = TRUE;
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recGblGetTimeStamp(prec);
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if (status == 0) {
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/* Convert RVAL to VAL */
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epicsUInt32 rval = prec->rval;
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if (prec->shft > 0)
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rval >>= prec->shft;
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prec->val = rval;
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prec->udf = FALSE;
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}
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else if (status == 2)
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status = 0;
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if (prec->udf)
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recGblSetSevr(prec, UDF_ALARM, INVALID_ALARM);
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monitor(prec);
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/* Wrap up */
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recGblFwdLink(prec);
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prec->pact = FALSE;
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return status;
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}
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static void monitor(mbbiDirectRecord *prec)
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{
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epicsUInt16 events = recGblResetAlarms(prec);
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epicsUInt16 vl_events = events | DBE_VALUE | DBE_LOG;
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epicsUInt16 val = prec->val;
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epicsUInt8 *pBn = &prec->b0;
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int i;
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/* Update B0 - BF from VAL and post monitors */
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for (i = 0; i < NUM_BITS; i++, pBn++, val >>= 1) {
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epicsUInt8 oBn = *pBn;
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*pBn = !! (val & 1);
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if (oBn != *pBn)
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db_post_events(prec, pBn, vl_events);
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else if (events)
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db_post_events(prec, pBn, events);
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}
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if (prec->mlst != prec->val) {
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events = vl_events;
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prec->mlst = prec->val;
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}
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if (events)
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db_post_events(prec, &prec->val, events);
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if (prec->oraw != prec->rval) {
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db_post_events(prec, &prec->rval, vl_events);
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prec->oraw = prec->rval;
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}
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}
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static long readValue(mbbiDirectRecord *prec)
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{
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struct mbbidset *pdset = (struct mbbidset *) prec->dset;
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long status;
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if (prec->pact)
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return pdset->read_mbbi(prec);
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status = dbGetLink(&prec->siml, DBR_ENUM, &prec->simm, 0, 0);
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if (status)
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return status;
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switch (prec->simm) {
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case menuSimmNO:
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return pdset->read_mbbi(prec);
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case menuSimmYES:
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status = dbGetLink(&prec->siol, DBR_ULONG, &prec->sval, 0, 0);
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if (status == 0) {
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prec->val = prec->sval;
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prec->udf = FALSE;
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}
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status = 2; /* Don't convert */
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break;
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case menuSimmRAW:
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status = dbGetLink(&prec->siol, DBR_ULONG, &prec->sval, 0, 0);
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if (status == 0) {
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prec->rval = prec->sval;
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prec->udf = FALSE;
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}
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status = 0; /* Convert RVAL */
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break;
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default:
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recGblSetSevr(prec, SOFT_ALARM, INVALID_ALARM);
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return -1;
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}
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recGblSetSevr(prec, SIMM_ALARM, prec->sims);
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return status;
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}
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