225 lines
5.8 KiB
C
225 lines
5.8 KiB
C
/* recEvent.c */
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/* base/src/rec $Id$ */
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/* recEvent.c - Record Support Routines for Event records */
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/*
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* Author: Janet Anderson
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* Date: 12-13-91
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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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4 .00 12-13-91 jba Initial definition
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* .01 02-28-92 jba ANSI C changes
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* .02 04-10-92 jba pact now used to test for asyn processing, not status
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* .03 04-18-92 jba removed process from dev init_record parms
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* .04 07-16-92 jba added invalid alarm fwd link test and chngd fwd lnk to macro
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* .05 08-17-92 jba added simulation mode handling
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* .06 03-29-94 mcn converted to fast links
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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 <lstLib.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 <dbScan.h>
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#include <dbFldTypes.h>
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#include <devSup.h>
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#include <errMdef.h>
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#include <recSup.h>
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#include <eventRecord.h>
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/* Create RSET - Record Support Entry Table*/
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#define report NULL
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#define initialize NULL
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static long init_record();
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static long process();
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#define special NULL
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static long get_value();
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#define cvt_dbaddr NULL
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#define get_array_info NULL
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#define put_array_info NULL
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#define get_units NULL
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#define get_precision NULL
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#define get_enum_str NULL
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#define get_enum_strs NULL
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#define put_enum_str NULL
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#define get_graphic_double NULL
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#define get_control_double NULL
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#define get_alarm_double NULL
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struct rset eventRSET={
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RSETNUMBER,
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report,
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initialize,
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init_record,
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process,
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special,
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get_value,
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cvt_dbaddr,
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get_array_info,
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put_array_info,
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get_units,
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get_precision,
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get_enum_str,
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get_enum_strs,
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put_enum_str,
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get_graphic_double,
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get_control_double,
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get_alarm_double };
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struct eventdset { /* event input dset */
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long number;
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DEVSUPFUN dev_report;
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DEVSUPFUN init;
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DEVSUPFUN init_record; /*returns: (-1,0)=>(failure,success)*/
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DEVSUPFUN get_ioint_info;
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DEVSUPFUN read_event;/*(0)=> success */
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};
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static void monitor();
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static long readValue();
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static long init_record(pevent,pass)
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struct eventRecord *pevent;
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int pass;
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{
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struct eventdset *pdset;
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long status=0;
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if (pass==0) return(0);
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if (pevent->siml.type == CONSTANT) {
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pevent->simm = pevent->siml.value.value;
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}
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else {
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status = recGblInitFastInLink(&(pevent->siml), (void *) pevent, DBR_ENUM, "SIMM");
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if (status)
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return(status);
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}
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if (pevent->siol.type == CONSTANT) {
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pevent->sval = pevent->siol.value.value;
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}
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else {
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status = recGblInitFastInLink(&(pevent->siol), (void *) pevent, DBR_USHORT, "SVAL");
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if (status)
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return(status);
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}
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if( (pdset=(struct eventdset *)(pevent->dset)) && (pdset->init_record) )
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status=(*pdset->init_record)(pevent);
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return(status);
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}
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static long process(pevent)
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struct eventRecord *pevent;
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{
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struct eventdset *pdset = (struct eventdset *)(pevent->dset);
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long status=0;
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unsigned char pact=pevent->pact;
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if((pdset!=NULL) && (pdset->number >= 5) && pdset->read_event )
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status=readValue(pevent); /* read the new value */
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/* check if device support set pact */
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if ( !pact && pevent->pact ) return(0);
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pevent->pact = TRUE;
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if(pevent->val>0) post_event((int)pevent->val);
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recGblGetTimeStamp(pevent);
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/* check event list */
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monitor(pevent);
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/* process the forward scan link record */
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recGblFwdLink(pevent);
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pevent->pact=FALSE;
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return(status);
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}
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static long get_value(pevent,pvdes)
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struct eventRecord *pevent;
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struct valueDes *pvdes;
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{
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pvdes->field_type = DBF_USHORT;
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pvdes->no_elements=1;
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pvdes->pvalue = (void *)(&pevent->val);
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return(0);
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}
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static void monitor(pevent)
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struct eventRecord *pevent;
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{
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unsigned short monitor_mask;
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/* get previous stat and sevr and new stat and sevr*/
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monitor_mask = recGblResetAlarms(pevent);
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db_post_events(pevent,&pevent->val,monitor_mask|DBE_VALUE);
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return;
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}
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static long readValue(pevent)
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struct eventRecord *pevent;
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{
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long status;
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struct eventdset *pdset = (struct eventdset *) (pevent->dset);
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if (pevent->pact == TRUE){
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status=(*pdset->read_event)(pevent);
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return(status);
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}
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status=recGblGetFastLink(&(pevent->siml), (void *)pevent, &(pevent->simm));
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if (status)
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return(status);
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if (pevent->simm == NO){
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status=(*pdset->read_event)(pevent);
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return(status);
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}
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if (pevent->simm == YES){
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status=recGblGetFastLink(&(pevent->siol), (void *)pevent, &(pevent->sval));
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if (status==0) {
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pevent->val=pevent->sval;
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pevent->udf=FALSE;
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}
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} else {
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status=-1;
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recGblSetSevr(pevent,SOFT_ALARM,INVALID_ALARM);
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return(status);
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}
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recGblSetSevr(pevent,SIMM_ALARM,pevent->sims);
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return(status);
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}
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