100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/*************************************************************************\
|
|
* Copyright (c) 2008 UChicago Argonne LLC, as Operator of Argonne
|
|
* National Laboratory.
|
|
* Copyright (c) 2002 Lawrence Berkeley Laboratory,The Control Systems
|
|
* Group, Systems Engineering Department
|
|
* EPICS BASE is distributed subject to a Software License Agreement found
|
|
* in file LICENSE that is included with this distribution.
|
|
\*************************************************************************/
|
|
|
|
/*
|
|
* Author: Carl Lionberger
|
|
* Date: 9-2-93
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "alarm.h"
|
|
#include "dbDefs.h"
|
|
#include "dbAccess.h"
|
|
#include "recGbl.h"
|
|
#include "devSup.h"
|
|
#include "subArrayRecord.h"
|
|
#include "epicsExport.h"
|
|
|
|
/* Create the dset for devSASoft */
|
|
static long init_record(subArrayRecord *prec);
|
|
static long read_sa(subArrayRecord *prec);
|
|
|
|
struct {
|
|
long number;
|
|
DEVSUPFUN report;
|
|
DEVSUPFUN init;
|
|
DEVSUPFUN init_record;
|
|
DEVSUPFUN get_ioint_info;
|
|
DEVSUPFUN read_sa;
|
|
} devSASoft = {
|
|
5,
|
|
NULL,
|
|
NULL,
|
|
init_record,
|
|
NULL,
|
|
read_sa
|
|
};
|
|
epicsExportAddress(dset, devSASoft);
|
|
|
|
static long init_record(subArrayRecord *prec)
|
|
{
|
|
/* INP must be CONSTANT, PV_LINK, DB_LINK or CA_LINK*/
|
|
switch (prec->inp.type) {
|
|
case CONSTANT:
|
|
prec->nord = 0;
|
|
break;
|
|
case PV_LINK:
|
|
case DB_LINK:
|
|
case CA_LINK:
|
|
break;
|
|
default:
|
|
recGblRecordError(S_db_badField, (void *)prec,
|
|
"devSASoft (init_record) Illegal INP field");
|
|
return S_db_badField;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static long read_sa(subArrayRecord *prec)
|
|
{
|
|
long nRequest = prec->indx + prec->nelm;
|
|
long ecount;
|
|
|
|
if (nRequest > prec->malm)
|
|
nRequest = prec->malm;
|
|
|
|
if (prec->inp.type == CONSTANT)
|
|
nRequest = prec->nord;
|
|
else
|
|
dbGetLink(&prec->inp, prec->ftvl, prec->bptr, 0, &nRequest);
|
|
|
|
ecount = nRequest - prec->indx;
|
|
if (ecount > 0) {
|
|
int esize = dbValueSize(prec->ftvl);
|
|
|
|
if (ecount > prec->nelm)
|
|
ecount = prec->nelm;
|
|
memmove(prec->bptr, (char *)prec->bptr + prec->indx * esize,
|
|
ecount * esize);
|
|
} else
|
|
ecount = 0;
|
|
|
|
prec->nord = ecount;
|
|
|
|
if (nRequest > 0 &&
|
|
prec->tsel.type == CONSTANT &&
|
|
prec->tse == epicsTimeEventDeviceTime)
|
|
dbGetTimeStamp(&prec->inp, &prec->time);
|
|
|
|
return 0;
|
|
}
|