Marty Kraimer
103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
/* devEventSoft.c */
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/* base/src/dev $Id$ */
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/* devEventSoft.c - Device Support Routines for Soft Event Input */
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/*
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* Author: Janet Anderson
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* Date: 04-21-91
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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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* .00 12-13-91 jba Initial definition
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* .02 03-13-92 jba ANSI C changes
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* .03 10-10-92 jba replaced code with recGblGetLinkValue call
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* .04 03-03-94 mrk Move constant link value to val only if val is zero
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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 <module_types.h>
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#include <eventRecord.h>
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/* Create the dset for devEventSoft */
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static long init_record();
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static long read_event();
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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_event;
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}devEventSoft={
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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_event};
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static long init_record(pevent)
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struct eventRecord *pevent;
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{
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long status;
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/* event.inp must be a CONSTANT or a PV_LINK or a DB_LINK or a CA_LINK*/
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switch (pevent->inp.type) {
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case (CONSTANT) :
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recGblInitConstantLink(&pevent->inp,DBF_USHORT,&pevent->val);
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pevent->udf = FALSE;
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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 *)pevent,
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"devEventSoft (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_event(pevent)
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struct eventRecord *pevent;
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{
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long status,options=0,nRequest=1;
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status = dbGetLink(&pevent->inp,DBR_USHORT,&pevent->val,0,0);
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if(RTN_SUCCESS(status)) pevent->udf=FALSE;
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return(status);
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}
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