fabc8d06a9
Dirk pointed out that existing device support authors aren't going to add this themselves; it's much better if the record does it all for itself.
82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
/*************************************************************************\
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* Copyright (c) 2008 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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* 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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*
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* Original Authors: Bob Dalesio and Marty Kraimer
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* Date: 6-1-90
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*/
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#include <stdlib.h>
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#include <stdio.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 "dbEvent.h"
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#include "recGbl.h"
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#include "devSup.h"
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#include "waveformRecord.h"
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#include "epicsExport.h"
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/* Create the dset for devWfSoft */
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static long init_record(waveformRecord *prec);
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static long read_wf(waveformRecord *prec);
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struct {
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long number;
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DEVSUPFUN report;
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DEVSUPFUN init;
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DEVSUPFUN init_record;
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DEVSUPFUN get_ioint_info;
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DEVSUPFUN read_wf;
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} devWfSoft = {
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5,
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NULL,
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NULL,
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init_record,
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NULL,
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read_wf
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};
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epicsExportAddress(dset, devWfSoft);
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static long init_record(waveformRecord *prec)
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{
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/* INP must be CONSTANT, PV_LINK, DB_LINK or CA_LINK*/
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switch (prec->inp.type) {
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case CONSTANT:
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prec->nord = 0;
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break;
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case PV_LINK:
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case DB_LINK:
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case CA_LINK:
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break;
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default:
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recGblRecordError(S_db_badField, (void *)prec,
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"devWfSoft (init_record) Illegal INP field");
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return(S_db_badField);
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}
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return 0;
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}
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static long read_wf(waveformRecord *prec)
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{
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long nRequest = prec->nelm;
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dbGetLink(&prec->inp, prec->ftvl, prec->bptr, 0, &nRequest);
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if (nRequest > 0) {
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prec->nord = nRequest;
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if (prec->tsel.type == CONSTANT &&
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prec->tse == epicsTimeEventDeviceTime)
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dbGetTimeStamp(&prec->inp, &prec->time);
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}
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return 0;
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}
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