300 lines
7.3 KiB
C
300 lines
7.3 KiB
C
/*************************************************************************\
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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 Versions 3.13.7
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* and higher are 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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/* recAai.c */
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/* recAai.c - Record Support Routines for Array Analog In records */
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/*
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* Original Author: Dave Barker
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* Current Author: Dave Barker
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* Date: 10/24/93
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*
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* C E B A F
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*
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* Continuous Electron Beam Accelerator Facility
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* Newport News, Virginia, USA.
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*
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* Copyright SURA CEBAF 1993.
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*
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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 "epicsPrint.h"
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#include "alarm.h"
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#include "dbAccess.h"
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#include "dbScan.h"
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#include "dbEvent.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 "recGbl.h"
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#define GEN_SIZE_OFFSET
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#include "aaiRecord.h"
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#undef GEN_SIZE_OFFSET
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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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#define special NULL
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static long get_value();
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static long cvt_dbaddr();
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static long get_array_info();
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static long put_array_info();
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static long get_units();
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static long get_precision();
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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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static long get_graphic_double();
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static long get_control_double();
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#define get_alarm_double NULL
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struct rset aaiRSET={
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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 aaidset { /* aai 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_aai; /*returns: (-1,0)=>(failure,success)*/
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};
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/*sizes of field types*/
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static int sizeofTypes[] = {0,1,1,2,2,4,4,4,8,2};
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static void monitor();
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static long readValue();
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static long init_record(paai,pass)
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struct aaiRecord *paai;
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int pass;
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{
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struct aaidset *pdset;
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long status;
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if (pass==0){
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if(paai->nelm<=0) paai->nelm=1;
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return(0);
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}
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recGblInitConstantLink(&paai->siml,DBF_USHORT,&paai->simm);
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/* must have dset defined */
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if(!(pdset = (struct aaidset *)(paai->dset))) {
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recGblRecordError(S_dev_noDSET,(void *)paai,"aai: init_record");
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return(S_dev_noDSET);
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}
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/* must have read_aai function defined */
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if( (pdset->number < 5) || (pdset->read_aai == NULL) ) {
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recGblRecordError(S_dev_missingSup,(void *)paai,"aai: init_record");
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return(S_dev_missingSup);
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}
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if( pdset->init_record ) {
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/* init records sets the bptr to point to the data */
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if((status=(*pdset->init_record)(paai))) return(status);
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}
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return(0);
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}
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static long process(paai)
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struct aaiRecord *paai;
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{
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struct aaidset *pdset = (struct aaidset *)(paai->dset);
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long status;
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unsigned char pact=paai->pact;
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if( (pdset==NULL) || (pdset->read_aai==NULL) ) {
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paai->pact=TRUE;
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recGblRecordError(S_dev_missingSup,(void *)paai,"read_aai");
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return(S_dev_missingSup);
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}
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if ( pact ) return(0);
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status=readValue(paai); /* read the new value */
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/* check if device support set pact */
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if ( !pact && paai->pact ) return(0);
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paai->pact = TRUE;
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paai->udf=FALSE;
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recGblGetTimeStamp(paai);
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monitor(paai);
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/* process the forward scan link record */
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recGblFwdLink(paai);
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paai->pact=FALSE;
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return(0);
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}
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static long get_value(paai,pvdes)
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struct aaiRecord *paai;
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struct valueDes *pvdes;
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{
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pvdes->no_elements=paai->nelm;
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pvdes->pvalue = paai->bptr;
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pvdes->field_type = paai->ftvl;
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return(0);
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}
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static long cvt_dbaddr(paddr)
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struct dbAddr *paddr;
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{
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struct aaiRecord *paai=(struct aaiRecord *)paddr->precord;
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paddr->pfield = (void *)(paai->bptr);
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paddr->no_elements = paai->nelm;
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paddr->field_type = paai->ftvl;
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if(paai->ftvl==0) paddr->field_size = MAX_STRING_SIZE;
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else paddr->field_size = sizeofTypes[paai->ftvl];
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paddr->dbr_field_type = paai->ftvl;
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return(0);
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}
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static long get_array_info(paddr,no_elements,offset)
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struct dbAddr *paddr;
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long *no_elements;
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long *offset;
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{
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struct aaiRecord *paai=(struct aaiRecord *)paddr->precord;
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*no_elements = paai->nelm;
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*offset = 0;
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return(0);
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}
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static long put_array_info(paddr,nNew)
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struct dbAddr *paddr;
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long nNew;
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{
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struct aaiRecord *paai=(struct aaiRecord *)paddr->precord;
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paai->nelm = nNew;
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return(0);
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}
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static long get_units(paddr,units)
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struct dbAddr *paddr;
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char *units;
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{
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struct aaiRecord *paai=(struct aaiRecord *)paddr->precord;
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strncpy(units,paai->egu,DB_UNITS_SIZE);
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return(0);
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}
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static long get_precision(paddr,precision)
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struct dbAddr *paddr;
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long *precision;
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{
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struct aaiRecord *paai=(struct aaiRecord *)paddr->precord;
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*precision = paai->prec;
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if(paddr->pfield==(void *)paai->bptr) return(0);
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recGblGetPrec(paddr,precision);
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return(0);
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}
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static long get_graphic_double(paddr,pgd)
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struct dbAddr *paddr;
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struct dbr_grDouble *pgd;
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{
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struct aaiRecord *paai=(struct aaiRecord *)paddr->precord;
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if(paddr->pfield==(void *)paai->bptr){
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pgd->upper_disp_limit = paai->hopr;
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pgd->lower_disp_limit = paai->lopr;
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} else recGblGetGraphicDouble(paddr,pgd);
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return(0);
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}
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static long get_control_double(paddr,pcd)
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struct dbAddr *paddr;
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struct dbr_ctrlDouble *pcd;
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{
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struct aaiRecord *paai=(struct aaiRecord *)paddr->precord;
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if(paddr->pfield==(void *)paai->bptr){
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pcd->upper_ctrl_limit = paai->hopr;
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pcd->lower_ctrl_limit = paai->lopr;
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} else recGblGetControlDouble(paddr,pcd);
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return(0);
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}
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static void monitor(paai)
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struct aaiRecord *paai;
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{
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unsigned short monitor_mask;
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monitor_mask = recGblResetAlarms(paai);
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monitor_mask |= (DBE_LOG|DBE_VALUE);
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if(monitor_mask) db_post_events(paai,paai->bptr,monitor_mask);
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return;
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}
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static long readValue(paai)
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struct aaiRecord *paai;
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{
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long status;
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struct aaidset *pdset = (struct aaidset *) (paai->dset);
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if (paai->pact == TRUE){
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status=(*pdset->read_aai)(paai);
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return(status);
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}
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status=dbGetLink(&(paai->siml),DBR_ENUM,&(paai->simm),0,0);
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if (status)
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return(status);
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if (paai->simm == NO){
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/* Call dev support */
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status=(*pdset->read_aai)(paai);
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return(status);
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}
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if (paai->simm == YES){
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/* Simm processing split performed in devSup */
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/* Call dev support */
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status=(*pdset->read_aai)(paai);
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return(status);
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}
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status=-1;
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recGblSetSevr(paai,SIMM_ALARM,INVALID_ALARM);
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return(status);
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}
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