116 lines
2.7 KiB
C
116 lines
2.7 KiB
C
/* devWfSymb.c */
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/* base/src/dev $Id$ */
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/* devWfSymb.c - Device Support for vxWorks Global Symbol Waveform Records*/
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/*
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* Author: Andrew Johnson
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* Date: 15-10-96
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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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* Modification Log:
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* -----------------
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* ...
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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 <waveformRecord.h>
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#include <devSymb.h>
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/* Create the dset for devWfSymb */
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static long init_record();
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static long read_wf();
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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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}devWfSymb={
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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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static int sizeofTypes[] = {MAX_STRING_SIZE,1,1,2,2,4,4,4,8,2};
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double testwf[] = {1.1, 2.2, 4.4, 8.8, 16.16, 32.32};
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static long init_record(pwf)
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struct waveformRecord *pwf;
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{
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/* determine address of record value */
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if (devSymbFind(pwf->name, &pwf->inp, &pwf->dpvt))
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{
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recGblRecordError(S_db_badField,(void *)pwf,
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"devWfSymb (init_record) Illegal NAME or 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(pwf)
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struct waveformRecord *pwf;
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{
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long status, typesize;
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struct vxSym *private = (struct vxSym *) pwf->dpvt;
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int lockKey;
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if (private)
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{
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typesize = sizeofTypes[pwf->ftvl];
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/* Copy the data */
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lockKey = intLock();
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memcpy(pwf->bptr,
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(char *)(*private->ppvar) + typesize * private->index,
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pwf->nelm * typesize);
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intUnlock(lockKey);
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pwf->nord = pwf->nelm; /* We always get it all */
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pwf->udf = FALSE; /* Record also does this (but shouldn't) */
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status = 0;
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}
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else
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status = 1;
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return(status); /* Record actually ignores this... */
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}
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