319 lines
8.2 KiB
C
319 lines
8.2 KiB
C
/*************************************************************************\
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* Copyright (c) 2002 Lawrence Berkeley Laboratory,The Control Systems
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* Group, Systems Engineering Department
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* SPDX-License-Identifier: EPICS
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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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/* recSubArray.c - Record Support Routines for SubArray records
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*
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*
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* Author: Carl Lionberger
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* Date: 090293
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*
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* NOTES:
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* Derived from waveform record.
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* Modification Log:
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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 "dbEvent.h"
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#include "dbFldTypes.h"
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#include "dbScan.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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#include "cantProceed.h"
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#define GEN_SIZE_OFFSET
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#include "subArrayRecord.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(struct dbCommon *prec, int pass);
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static long process(struct dbCommon *prec);
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#define special NULL
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#define get_value NULL
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static long cvt_dbaddr(DBADDR *paddr);
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static long get_array_info(DBADDR *paddr, long *no_elements, long *offset);
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static long put_array_info(DBADDR *paddr, long nNew);
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static long get_units(DBADDR *paddr, char *units);
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static long get_precision(const DBADDR *paddr, long *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(DBADDR *paddr, struct dbr_grDouble *pgd);
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static long get_control_double(DBADDR *paddr, struct dbr_ctrlDouble *pcd);
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#define get_alarm_double NULL
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rset subArrayRSET={
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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,subArrayRSET);
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static void monitor(subArrayRecord *prec);
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static long readValue(subArrayRecord *prec);
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static long init_record(struct dbCommon *pcommon, int pass)
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{
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struct subArrayRecord *prec = (struct subArrayRecord *)pcommon;
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sadset *pdset;
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if (pass==0){
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if (prec->malm <= 0)
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prec->malm = 1;
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if (prec->ftvl > DBF_ENUM)
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prec->ftvl = DBF_UCHAR;
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prec->bptr = callocMustSucceed(prec->malm, dbValueSize(prec->ftvl),
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"subArrayRecord calloc failed");
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prec->nord = 0;
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if (prec->nelm > prec->malm)
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prec->nelm = prec->malm;
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return 0;
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}
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/* must have dset defined */
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if (!(pdset = (sadset *)(prec->dset))) {
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recGblRecordError(S_dev_noDSET, prec, "sa: init_record");
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return S_dev_noDSET;
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}
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/* must have read_sa function defined */
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if ( (pdset->common.number < 5) || (pdset->read_sa == NULL) ) {
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recGblRecordError(S_dev_missingSup, prec, "sa: init_record");
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return S_dev_missingSup;
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}
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if (pdset->common.init_record)
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return pdset->common.init_record(pcommon);
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return 0;
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}
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static long process(struct dbCommon *pcommon)
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{
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struct subArrayRecord *prec = (struct subArrayRecord *)pcommon;
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sadset *pdset = (sadset *)(prec->dset);
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long status;
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unsigned char pact=prec->pact;
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if ((pdset==NULL) || (pdset->read_sa==NULL)) {
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prec->pact=TRUE;
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recGblRecordError(S_dev_missingSup, prec, "read_sa");
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return S_dev_missingSup;
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}
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if (pact && prec->busy) return 0;
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status=readValue(prec); /* read the new value */
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if (!pact && prec->pact) return 0;
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prec->pact = TRUE;
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recGblGetTimeStamp(prec);
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prec->udf = !!status; /* 0 or 1 */
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if (status)
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recGblSetSevr(prec, UDF_ALARM, prec->udfs);
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monitor(prec);
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/* process the forward scan link record */
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recGblFwdLink(prec);
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prec->pact=FALSE;
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return 0;
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}
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static long cvt_dbaddr(DBADDR *paddr)
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{
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subArrayRecord *prec = (subArrayRecord *) paddr->precord;
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paddr->no_elements = prec->malm;
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paddr->field_type = prec->ftvl;
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paddr->field_size = dbValueSize(prec->ftvl);
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paddr->dbr_field_type = prec->ftvl;
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return 0;
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}
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static long get_array_info(DBADDR *paddr, long *no_elements, long *offset)
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{
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subArrayRecord *prec = (subArrayRecord *) paddr->precord;
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paddr->pfield = prec->bptr;
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if (prec->udf)
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*no_elements = 0;
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else
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*no_elements = prec->nord;
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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(DBADDR *paddr, long nNew)
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{
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subArrayRecord *prec = (subArrayRecord *) paddr->precord;
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epicsUInt32 nord = prec->nord;
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prec->nord = nNew;
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if (prec->nord > prec->malm)
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prec->nord = prec->malm;
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if (nord != prec->nord)
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db_post_events(prec, &prec->nord, DBE_VALUE | DBE_LOG);
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return 0;
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}
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#define indexof(field) subArrayRecord##field
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static long get_units(DBADDR *paddr, char *units)
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{
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subArrayRecord *prec = (subArrayRecord *) paddr->precord;
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switch (dbGetFieldIndex(paddr)) {
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case indexof(VAL):
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if (prec->ftvl == DBF_STRING || prec->ftvl == DBF_ENUM)
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break;
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case indexof(HOPR):
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case indexof(LOPR):
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strncpy(units,prec->egu,DB_UNITS_SIZE);
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}
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return 0;
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}
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static long get_precision(const DBADDR *paddr, long *precision)
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{
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subArrayRecord *prec = (subArrayRecord *) paddr->precord;
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*precision = prec->prec;
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if (dbGetFieldIndex(paddr) != indexof(VAL))
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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(DBADDR *paddr, struct dbr_grDouble *pgd)
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{
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subArrayRecord *prec = (subArrayRecord *) paddr->precord;
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switch (dbGetFieldIndex(paddr)) {
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case indexof(VAL):
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pgd->upper_disp_limit = prec->hopr;
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pgd->lower_disp_limit = prec->lopr;
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break;
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case indexof(INDX):
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pgd->upper_disp_limit = prec->malm - 1;
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pgd->lower_disp_limit = 0;
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break;
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case indexof(NELM):
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pgd->upper_disp_limit = prec->malm;
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pgd->lower_disp_limit = 0;
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break;
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case indexof(NORD):
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pgd->upper_disp_limit = prec->malm;
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pgd->lower_disp_limit = 0;
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break;
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case indexof(BUSY):
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pgd->upper_disp_limit = 1;
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pgd->lower_disp_limit = 0;
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break;
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default:
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recGblGetGraphicDouble(paddr, pgd);
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}
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return 0;
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}
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static long get_control_double(DBADDR *paddr, struct dbr_ctrlDouble *pcd)
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{
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subArrayRecord *prec = (subArrayRecord *) paddr->precord;
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switch (dbGetFieldIndex(paddr)) {
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case indexof(VAL):
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pcd->upper_ctrl_limit = prec->hopr;
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pcd->lower_ctrl_limit = prec->lopr;
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break;
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case indexof(INDX):
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pcd->upper_ctrl_limit = prec->malm - 1;
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pcd->lower_ctrl_limit = 0;
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break;
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case indexof(NELM):
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pcd->upper_ctrl_limit = prec->malm;
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pcd->lower_ctrl_limit = 1;
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break;
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case indexof(NORD):
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pcd->upper_ctrl_limit = prec->malm;
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pcd->lower_ctrl_limit = 0;
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break;
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case indexof(BUSY):
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pcd->upper_ctrl_limit = 1;
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pcd->lower_ctrl_limit = 0;
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break;
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default:
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recGblGetControlDouble(paddr, pcd);
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}
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return 0;
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}
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static void monitor(subArrayRecord *prec)
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{
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unsigned short monitor_mask;
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monitor_mask = recGblResetAlarms(prec);
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monitor_mask |= (DBE_LOG|DBE_VALUE);
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db_post_events(prec, &prec->val, monitor_mask);
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return;
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}
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static long readValue(subArrayRecord *prec)
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{
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long status;
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sadset *pdset = (sadset *) (prec->dset);
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if (prec->nelm > prec->malm)
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prec->nelm = prec->malm;
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if (prec->indx >= prec->malm)
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prec->indx = prec->malm - 1;
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status = (*pdset->read_sa)(prec);
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if (prec->nord <= 0)
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status = -1;
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return status;
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}
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