127 lines
3.1 KiB
C
127 lines
3.1 KiB
C
/* devSASoft.c */
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/* devSASoft.c - Device Support Routines for soft 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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* Experimental Physics and Industrial Control System (EPICS)
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*
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* Copyright 1991, the Regents of the University of California,
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* and the University of Chicago Board of Governors.
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*
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* This software was produced under U.S. Government contracts:
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* (W-7405-ENG-36) at the Los Alamos National Laboratory,
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* and (W-31-109-ENG-38) at Argonne National Laboratory.
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*
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* Initial development by:
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* The Controls and Automation Group (AT-8)
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* Ground Test Accelerator
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* Accelerator Technology Division
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* Los Alamos National Laboratory
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*
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* Co-developed with
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* The Controls and Computing Group
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* Accelerator Systems Division
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* Advanced Photon Source
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* Argonne National Laboratory
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*
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* The Control Systems Group
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* Systems Engineering Department
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* Lawrence Berkeley Laboratory
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*
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* NOTES:
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* Derived from soft record device support.
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* Modification Log:
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* -----------------
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*/
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#include <vxWorks.h>
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#include <types.h>
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#include <stdioLib.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 <recSup.h>
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#include <devSup.h>
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#include <link.h>
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#include <subArrayRecord.h>
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/* Added for Channel Access Links */
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long dbCaAddInlink();
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long dbCaGetLink();
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static int sizeofTypes[] = {MAX_STRING_SIZE,1,1,2,2,4,4,4,8,2};
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/* Create the dset for devSASoft */
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static long init_record();
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static long read_sa();
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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_sa;
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}devSASoft={
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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_sa};
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static long init_record(psa)
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struct subArrayRecord *psa;
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{
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long status;
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/* sa.inp must be a CONSTANT or a PV_LINK or a DB_LINK or a CA_LINK*/
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switch (psa->inp.type) {
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case (CONSTANT) :
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psa->nord = 0;
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break;
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case (PV_LINK) :
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status = dbCaAddInlink(&(psa->inp), (void *) psa, "VAL");
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if(status) return(status);
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break;
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case (DB_LINK) :
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break;
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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 *)psa,
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"devSASoft (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_sa(psa)
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struct subArrayRecord *psa;
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{
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long status,ecount,options=0,nRequest;
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if ((psa->indx + psa->nelm) < psa->malm)
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nRequest= psa->indx + psa->nelm;
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else
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nRequest=psa->malm;
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status = recGblGetLinkValue(&(psa->inp),(void *)psa,psa->ftvl,
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psa->bptr, &options,&nRequest);
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if ((nRequest - psa->indx) > 0)
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{
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if (psa->nelm > (nRequest - psa->indx))
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ecount = nRequest - psa->indx;
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else
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ecount = psa->nelm;
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bcopy(psa->bptr + psa->indx * sizeofTypes[psa->ftvl], psa->bptr,
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ecount * sizeofTypes[psa->ftvl]);
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}
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psa->nord = nRequest - psa->indx;
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return(0);
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}
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