William Lupton
114 lines
2.7 KiB
C
114 lines
2.7 KiB
C
/* base/src/dev $Id$ */
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/* @(#)devAoSymb.c 1.1 6/4/93
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* Device Support for VxWorks Global Symbol Analog Output Records
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*
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*
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* Author: Carl Lionberger
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* Date: 060893
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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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* wfl 06-jun-96 call devSymbFind() to parse PARM field and
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* look up symbol
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* anj 14-Oct-96 Changed devSymbFind() parameters.
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*/
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#include <vxWorks.h>
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#include <sysSymTbl.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 <intLib.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 <special.h>
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#include <aoRecord.h>
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#include <devSymb.h>
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/* Create the dset for devAoSymb */
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static long init_record();
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static long write_ao();
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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 write_ao;
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DEVSUPFUN special_linconv;
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}devAoSymb={
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6,
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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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write_ao,
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NULL};
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static long init_record(pao)
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struct aoRecord *pao;
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{
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/* determine address of record value */
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if (devSymbFind(pao->name, &pao->out, &pao->dpvt))
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{
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recGblRecordError(S_db_badField,(void *)pao,
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"devAoSymb (init_record) Illegal NAME or OUT field");
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return(S_db_badField);
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}
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return(2); /* don't convert */
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}
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static long write_ao(pao)
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struct aoRecord *pao;
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{
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struct vxSym *private = (struct vxSym *) pao->dpvt;
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int lockKey;
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if (private)
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{
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lockKey = intLock();
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*((double *)(*private->ppvar) + private->index) = pao->val;
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intUnlock(lockKey);
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}
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else
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return(1);
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return(0);
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}
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