416 lines
11 KiB
C
416 lines
11 KiB
C
/* recPulseDelay.c */
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/* share/src/rec $Id$ */
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/* recPulser.c - Record Support Routines for PulseDelay records */
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/*
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* Author: Janet Anderson
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* Date: 6/21/91
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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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* .01 11-11-91 jba Moved set and reset of alarm stat and sevr to macros
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* .02 02-05-92 jba Changed function arguments from paddr to precord
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* .03 02-28-92 jba Changed get_precision,get_graphic_double,get_control_double
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* .04 02-28-92 jba ANSI C changes
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* .05 04-10-92 jba pact now used to test for asyn processing, not status
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* .06 04-18-92 jba removed process from dev init_record parms
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* .07 06-02-92 jba changed graphic/control limits for dly,odly,wide,owid
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* .08 07-16-92 jba added invalid alarm fwd link test and chngd fwd lnk to macro
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* .09 09-16-92 jba replaced code with calls to recGblGetLinkvalue
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* .10 10-20-92 jbk added get_enum funcs, allowed defaults in fields
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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 <dbRecDes.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 <pulseDelayRecord.h>
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/* defines used in special routine */
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#define DLY_FIELD 0x0001
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#define WIDE_FIELD 0x0002
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#define STV_FIELD 0x0004
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#define GATE_FIELD 0x0008
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#define HTS_FIELD 0x0010
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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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static long special();
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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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static long get_precision();
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static long get_enum_str();
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static long get_enum_strs();
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static long put_enum_str();
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static long get_graphic_double();
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static long get_control_double();
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#define get_alarm_double NULL
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struct rset pulseDelayRSET={
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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 pddset { /* pulseDelay 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 write_pd;/*(-1,0)=>(failure,success*/
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DEVSUPFUN get_enum;
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};
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static void monitor();
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static long init_record(ppd,pass)
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struct pulseDelayRecord *ppd;
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int pass;
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{
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struct pddset *pdset;
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long status=0;
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if (pass==0) return(0);
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/* must have device support */
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if(!(pdset = (struct pddset *)(ppd->dset))) {
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recGblRecordError(S_dev_noDSET,(void *)ppd,"pd: init_record");
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return(S_dev_noDSET);
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}
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/* must have write_pd functions defined */
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if( (pdset->number < 5) || (pdset->write_pd == NULL) ) {
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recGblRecordError(S_dev_missingSup,(void *)ppd,"pd: write_pd");
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return(S_dev_missingSup);
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}
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/* get the soft trigger value if stl is a constant*/
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if(ppd->stl.type==CONSTANT)
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{
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if(ppd->stl.value.value!=0)
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ppd->stv=ppd->stl.value.value;
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}
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if(ppd->stl.type==PV_LINK)
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{
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status = dbCaAddInlink(&(ppd->stl), (void *) ppd, "STV");
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if(status) return(status);
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}
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/* get the soft gate value if glnk is a constant*/
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if(ppd->glnk.type==CONSTANT)
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{
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/* changed by jbk */
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if(ppd->glnk.value.value!=0)
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ppd->gate=ppd->glnk.value.value;
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}
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if(ppd->glnk.type==PV_LINK)
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{
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status = dbCaAddInlink(&(ppd->glnk), (void *) ppd, "GLNK");
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if(status) return(status);
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}
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/* call device support init_record */
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if( pdset->init_record ) {
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if((status=(*pdset->init_record)(ppd))) return(status);
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}
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ppd->pfld=0; /* clear the pfld */
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if(ppd->val)
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ppd->pfld|=0x0f00;
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else
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ppd->pfld&=0x00ff;
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return(0);
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}
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static long process(ppd)
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struct pulseDelayRecord *ppd;
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{
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struct pddset *pdset = (struct pddset *)(ppd->dset);
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long status=0;
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unsigned char pact=ppd->pact;
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long nRequest,options;
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/* must have write_pd functions defined */
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if( (pdset==NULL) || (pdset->write_pd==NULL) ) {
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ppd->pact=TRUE;
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recGblRecordError(S_dev_missingSup,(void *)ppd,"write_pd");
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return(S_dev_missingSup);
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}
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if(!ppd->pact)
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{
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/* get soft trigger value */
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options=0;
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nRequest=1;
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status=recGblGetLinkValue(&(ppd->stl),(void *)ppd,DBR_SHORT,
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&ppd->stv,&options,&nRequest);
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/* get soft gate value */
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options=0;
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nRequest=1;
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status=recGblGetLinkValue(&(ppd->glnk),(void *)ppd,DBR_SHORT,
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&ppd->gate,&options,&nRequest);
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}
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if (status==0) status=(*pdset->write_pd)(ppd); /* write the new value */
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/* reset field causing processing parameter */
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/* used to be set to zero, use a bit to detect val field change */
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ppd->pfld&=0x0f00;
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/* check if device support set pact */
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if ( !pact && ppd->pact ) return(0);
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ppd->pact = TRUE;
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ppd->udf=FALSE;
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recGblGetTimeStamp(ppd);
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/* check event list */
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monitor(ppd);
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/* process the forward scan link record */
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recGblFwdLink(ppd);
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ppd->pact=FALSE;
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if(status)
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{
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recGblSetSevr(ppd,READ_ALARM,INVALID_ALARM);
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}
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return(0);
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/* return(status); if card missing, causing error on console for
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db_get */
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}
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static long get_value(ppd,pvdes)
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struct pulseDelayRecord *ppd;
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struct valueDes *pvdes;
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{
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pvdes->field_type = DBF_SHORT;
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pvdes->no_elements=1;
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(short *)pvdes->pvalue = &ppd->val;
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return(0);
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}
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static long get_precision(paddr,precision)
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struct dbAddr *paddr;
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long *precision;
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{
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struct pulseDelayRecord *ppd=(struct pulseDelayRecord *)paddr->precord;
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*precision = ppd->prec;
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if(paddr->pfield == (void *)&ppd->val) return(0);
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recGblGetPrec(paddr,precision);
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return(0);
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}
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/*---------------------------------------------------------------------
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This routine is used to set the pfld element to true if
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the field causing the processing is dly, hts, or stv.
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-----------------------------------------------------------------------*/
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static long special(paddr,after)
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struct dbAddr *paddr;
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int after;
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{
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struct pulseDelayRecord *pd=(struct pulseDelayRecord *)paddr->precord;
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/* pre-processing mode */
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if(!after) return(0);
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if(paddr->pfield==&(pd->dly))
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pd->pfld|=DLY_FIELD;
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else if(paddr->pfield==&(pd->wide))
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pd->pfld|=WIDE_FIELD;
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else if(paddr->pfield==&(pd->stv))
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pd->pfld|=STV_FIELD;
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else if(paddr->pfield==&(pd->hts))
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pd->pfld|=HTS_FIELD;
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else if(paddr->pfield==&(pd->gate))
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pd->pfld|=GATE_FIELD;
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return(0);
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}
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static long get_graphic_double(paddr,pgd)
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struct dbAddr *paddr;
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struct dbr_grDouble *pgd;
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{
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struct pulseDelayRecord *ppd=(struct pulseDelayRecord *)paddr->precord;
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if(paddr->pfield==(void *)&ppd->val
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|| paddr->pfield==(void *)&ppd->dly
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|| paddr->pfield==(void *)&ppd->wide
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|| paddr->pfield==(void *)&ppd->odly
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|| paddr->pfield==(void *)&ppd->owid){
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pgd->upper_disp_limit = ppd->hopr;
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pgd->lower_disp_limit = ppd->lopr;
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} else recGblGetGraphicDouble(paddr,pgd);
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return(0);
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}
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static long get_enum_str(struct dbAddr *paddr,char *p)
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{
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struct pulseDelayRecord *ppd=(struct pulseDelayRecord *)paddr->precord;
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if(paddr->pfield==(void *)&ppd->hts)
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{
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sprintf(p,"%d",ppd->hts);
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}
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else
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{
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strcpy(p,"No string");
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}
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return(0);
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}
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static long get_enum_strs(struct dbAddr *paddr,struct dbr_enumStrs *p)
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{
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struct pulseDelayRecord *ppd=(struct pulseDelayRecord *)paddr->precord;
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struct pddset *pdset;
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pdset=(struct pddset *)(ppd->dset);
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if(paddr->pfield==(void *)&ppd->hts)
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{
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if( (pdset->number >= 6) && (pdset->get_enum != NULL) )
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{
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(*pdset->get_enum)(paddr,p);
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}
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else
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{
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strcpy(p->strs[0],"none available");
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p->no_str=1;
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}
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}
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else
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{
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strcpy(p->strs[0],"No string");
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p->no_str=1;
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}
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return(0);
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}
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static long put_enum_str(struct dbAddr *paddr,char *p)
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{
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struct pulseDelayRecord *ppd=(struct pulseDelayRecord *)paddr->precord;
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if(paddr->pfield==(void *)&ppd->hts)
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{
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if(sscanf(p,"%i",&ppd->hts)<=0)
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return(S_db_badChoice);
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}
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else
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{
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return(S_db_badChoice);
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}
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return(0);
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}
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static long get_control_double(paddr,pcd)
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struct dbAddr *paddr;
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struct dbr_ctrlDouble *pcd;
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{
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struct pulseDelayRecord *ppd=(struct pulseDelayRecord *)paddr->precord;
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if(paddr->pfield==(void *)&ppd->val
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|| paddr->pfield==(void *)&ppd->dly
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|| paddr->pfield==(void *)&ppd->wide){
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pcd->upper_ctrl_limit = ppd->hopr;
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pcd->lower_ctrl_limit = ppd->lopr;
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} else recGblGetControlDouble(paddr,pcd);
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return(0);
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}
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static void monitor(ppd)
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struct pulseDelayRecord *ppd;
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{
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unsigned short monitor_mask;
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monitor_mask = recGblResetAlarms(ppd);
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monitor_mask |= (DBE_VALUE | DBE_LOG);
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/* temp change, keep old val value in pfld so ascii files do not
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need to be changed, keep in 0x0f00 position */
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if( ( (ppd->pfld & 0x0f00) && !(ppd->val) )
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|| ( !(ppd->pfld & 0x0f00) && (ppd->val) ) )
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{
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db_post_events(ppd,&ppd->val,monitor_mask);
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if(ppd->val)
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ppd->pfld|=0x0f00;
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else
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ppd->pfld&=0x00ff;
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}
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if(ppd->odly != ppd->dly){
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db_post_events(ppd,&ppd->dly,monitor_mask);
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ppd->odly=ppd->dly;
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}
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if(ppd->owid != ppd->wide){
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db_post_events(ppd,&ppd->wide,monitor_mask);
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ppd->owid=ppd->wide;
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}
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return;
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}
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