465 lines
13 KiB
C
465 lines
13 KiB
C
/* aiRecord.c */
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/* base/src/rec $Id$ */
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/* aiRecord.c - Record Support Routines for Analog Input records */
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/*
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* Original Author: Bob Dalesio
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* Current Author: Marty Kraimer
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* Date: 7-14-89
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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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*
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* Modification Log:
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* -----------------
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* .01 8-12-88 lrd Put in breakpoint conversions
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* Fix conversions for bipolar xy566 cards
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* .02 12-12-88 lrd Lock record on entry and unlock on exit
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* .03 12-15-88 lrd Process the forward scan link
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* .04 12-23-88 lrd Alarm on locked MAX_LOCKED times
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* .05 01-13-89 lrd deleted db_read_ai
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* .06 01-18-89 lrd modify adjustment offset to be independent of
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* adjustment slope
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* clamp xy566 breakpoint table negative values t o
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* zero
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* .07 03-27-89 lrd make hardware errors MAJOR alarms
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* remove hardware severity from the database
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* .08 04-03-89 lrd add monitor code
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* removed signal units conversion stuff
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* .09 04-05-89 lrd modified so that negative adjustment slope ASLO
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* would work
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* .10 05-03-89 lrd removed process mask from arg list
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* .11 08-01-89 lrd only set value for constant when val != 0
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* .12 10-11-89 lrd fix smoothing initial condition
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* .13 01-31-90 lrd add AB plc flag to the ab_aidriver call
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* .14 03-21-90 lrd add db_post_event for RVAL
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* .15 04-11-90 lrd make locals static
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* .16 04-18-90 mrk extensible record and device support
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* .17 09-18-91 jba fixed bug in break point table conversion
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* .18 09-30-91 jba Moved break point table conversion to libCom
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* .19 11-11-91 jba Moved set and reset of alarm stat and sevr to macros
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* .20 12-18-91 jba Changed E_IO_INTERRUPT to SCAN_IO_EVENT
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* .21 02-05-92 jba Changed function arguments from paddr to precord
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* .22 02-28-92 jba Changed get_precision,get_graphic_double,get_control_double
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* .23 02-28-92 jba ANSI C changes
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* .24 04-10-92 jba pact now used to test for asyn processing, not status
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* .25 04-18-92 jba removed process from dev init_record parms
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* .26 06-02-92 jba changed graphic/control limits for hihi,high,low,lolo
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* .28 07-15-92 jba changed VALID_ALARM to INVALID alarm
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* .29 07-16-92 jba added invalid alarm fwd link test and chngd fwd lnk to macro
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* .30 07-21-92 jba changed alarm limits for non val related fields
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* .31 08-06-92 jba New algorithm for calculating analog alarms
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* .32 08-13-92 jba Added simulation processing
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* .33 03-29-94 mcn converted to fast links
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*/
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include "dbDefs.h"
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#include "errlog.h"
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#include "alarm.h"
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#include "cvtTable.h"
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#include "dbAccess.h"
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#include "dbScan.h"
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#include "dbEvent.h"
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#include "dbFldTypes.h"
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#include "devSup.h"
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#include "recSup.h"
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#include "recGbl.h"
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#include "special.h"
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#include "menuConvert.h"
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#define GEN_SIZE_OFFSET
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#include "aiRecord.h"
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#undef GEN_SIZE_OFFSET
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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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#define get_value NULL
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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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static long get_units();
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static long get_precision();
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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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static long get_graphic_double();
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static long get_control_double();
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static long get_alarm_double();
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struct rset aiRSET={
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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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typedef struct aidset { /* analog 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_ai;/*(0,2)=> success and convert,don't convert)*/
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/* if convert then raw value stored in rval */
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DEVSUPFUN special_linconv;
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}aidset;
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/*Following from timing system */
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/*
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extern unsigned int gts_trigger_counter;
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*/
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static void checkAlarms(aiRecord *pai);
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static void convert(aiRecord *pai);
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static void monitor(aiRecord *pai);
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static long readValue(aiRecord *pai);
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static long init_record(void *precord,int pass)
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{
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aiRecord *pai = (aiRecord *)precord;
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aidset *pdset;
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long status;
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if (pass==0) return(0);
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/* ai.siml must be a CONSTANT or a PV_LINK or a DB_LINK */
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if (pai->siml.type == CONSTANT) {
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recGblInitConstantLink(&pai->siml,DBF_USHORT,&pai->simm);
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}
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/* ai.siol must be a CONSTANT or a PV_LINK or a DB_LINK */
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if (pai->siol.type == CONSTANT) {
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recGblInitConstantLink(&pai->siol,DBF_DOUBLE,&pai->sval);
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}
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if(!(pdset = (aidset *)(pai->dset))) {
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recGblRecordError(S_dev_noDSET,(void *)pai,"ai: init_record");
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return(S_dev_noDSET);
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}
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/* must have read_ai function defined */
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if( (pdset->number < 6) || (pdset->read_ai == NULL) ) {
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recGblRecordError(S_dev_missingSup,(void *)pai,"ai: init_record");
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return(S_dev_missingSup);
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}
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pai->init = TRUE;
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pai->eoff = pai->egul;
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if( pdset->init_record ) {
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if((status=(*pdset->init_record)(pai))) return(status);
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}
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return(0);
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}
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static long process(void *precord)
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{
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aiRecord *pai = (aiRecord *)precord;
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aidset *pdset = (aidset *)(pai->dset);
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long status;
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unsigned char pact=pai->pact;
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if( (pdset==NULL) || (pdset->read_ai==NULL) ) {
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pai->pact=TRUE;
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recGblRecordError(S_dev_missingSup,(void *)pai,"read_ai");
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return(S_dev_missingSup);
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}
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status=readValue(pai); /* read the new value */
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/* check if device support set pact */
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if ( !pact && pai->pact ) return(0);
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pai->pact = TRUE;
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recGblGetTimeStamp(pai);
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if (status==0) convert(pai);
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else if (status==2) status=0;
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/* check for alarms */
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checkAlarms(pai);
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/* check event list */
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monitor(pai);
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/* process the forward scan link record */
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recGblFwdLink(pai);
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pai->init=FALSE;
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pai->pact=FALSE;
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return(status);
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}
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static long special(DBADDR *paddr,int after)
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{
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aiRecord *pai = (aiRecord *)(paddr->precord);
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aidset *pdset = (aidset *) (pai->dset);
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int special_type = paddr->special;
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switch(special_type) {
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case(SPC_LINCONV):
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if(pdset->number<6) {
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recGblDbaddrError(S_db_noMod,paddr,"ai: special");
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return(S_db_noMod);
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}
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pai->init=TRUE;
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pai->eoff = pai->egul;
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if(!(pdset->special_linconv)) return(0);
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return((*pdset->special_linconv)(pai,after));
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default:
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recGblDbaddrError(S_db_badChoice,paddr,"ai: special");
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return(S_db_badChoice);
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}
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}
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static long get_units(DBADDR *paddr, char *units)
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{
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aiRecord *pai=(aiRecord *)paddr->precord;
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strncpy(units,pai->egu,DB_UNITS_SIZE);
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return(0);
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}
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static long get_precision(DBADDR *paddr, long *precision)
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{
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aiRecord *pai=(aiRecord *)paddr->precord;
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*precision = pai->prec;
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if(paddr->pfield == (void *)&pai->val) return(0);
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recGblGetPrec(paddr,precision);
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return(0);
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}
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static long get_graphic_double(DBADDR *paddr,struct dbr_grDouble *pgd)
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{
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aiRecord *pai=(aiRecord *)paddr->precord;
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int fieldIndex = dbGetFieldIndex(paddr);
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if(fieldIndex == aiRecordVAL
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|| fieldIndex == aiRecordHIHI
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|| fieldIndex == aiRecordHIGH
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|| fieldIndex == aiRecordLOW
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|| fieldIndex == aiRecordLOLO
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|| fieldIndex == aiRecordHOPR
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|| fieldIndex == aiRecordLOPR) {
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pgd->upper_disp_limit = pai->hopr;
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pgd->lower_disp_limit = pai->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_control_double(DBADDR *paddr,struct dbr_ctrlDouble *pcd)
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{
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aiRecord *pai=(aiRecord *)paddr->precord;
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int fieldIndex = dbGetFieldIndex(paddr);
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if(fieldIndex == aiRecordVAL
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|| fieldIndex == aiRecordHIHI
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|| fieldIndex == aiRecordHIGH
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|| fieldIndex == aiRecordLOW
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|| fieldIndex == aiRecordLOLO) {
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pcd->upper_ctrl_limit = pai->hopr;
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pcd->lower_ctrl_limit = pai->lopr;
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} else recGblGetControlDouble(paddr,pcd);
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return(0);
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}
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static long get_alarm_double(DBADDR *paddr,struct dbr_alDouble *pad)
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{
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aiRecord *pai=(aiRecord *)paddr->precord;
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int fieldIndex = dbGetFieldIndex(paddr);
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if(fieldIndex == aiRecordVAL) {
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pad->upper_alarm_limit = pai->hihi;
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pad->upper_warning_limit = pai->high;
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pad->lower_warning_limit = pai->low;
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pad->lower_alarm_limit = pai->lolo;
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} else recGblGetAlarmDouble(paddr,pad);
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return(0);
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}
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static void checkAlarms(aiRecord *pai)
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{
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double val;
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double hyst, lalm, hihi, high, low, lolo;
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unsigned short hhsv, llsv, hsv, lsv;
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if(pai->udf == TRUE ){
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recGblSetSevr(pai,UDF_ALARM,INVALID_ALARM);
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return;
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}
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hihi = pai->hihi; lolo = pai->lolo; high = pai->high; low = pai->low;
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hhsv = pai->hhsv; llsv = pai->llsv; hsv = pai->hsv; lsv = pai->lsv;
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val = pai->val; hyst = pai->hyst; lalm = pai->lalm;
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/* alarm condition hihi */
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if (hhsv && (val >= hihi || ((lalm==hihi) && (val >= hihi-hyst)))){
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if (recGblSetSevr(pai,HIHI_ALARM,pai->hhsv)) pai->lalm = hihi;
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return;
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}
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/* alarm condition lolo */
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if (llsv && (val <= lolo || ((lalm==lolo) && (val <= lolo+hyst)))){
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if (recGblSetSevr(pai,LOLO_ALARM,pai->llsv)) pai->lalm = lolo;
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return;
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}
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/* alarm condition high */
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if (hsv && (val >= high || ((lalm==high) && (val >= high-hyst)))){
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if (recGblSetSevr(pai,HIGH_ALARM,pai->hsv)) pai->lalm = high;
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return;
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}
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/* alarm condition low */
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if (lsv && (val <= low || ((lalm==low) && (val <= low+hyst)))){
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if (recGblSetSevr(pai,LOW_ALARM,pai->lsv)) pai->lalm = low;
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return;
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}
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/* we get here only if val is out of alarm by at least hyst */
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pai->lalm = val;
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return;
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}
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static void convert(aiRecord *pai)
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{
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double val;
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val = (double)pai->rval + (double)pai->roff;
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/* adjust slope and offset */
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if(pai->aslo!=0.0) val*=pai->aslo;
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val+=pai->aoff;
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/* convert raw to engineering units and signal units */
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if(pai->linr == menuConvertNO_CONVERSION) {
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; /* do nothing*/
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}
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else if(pai->linr == menuConvertLINEAR) {
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val = (val * pai->eslo) + pai->eoff;
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}
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else { /* must use breakpoint table */
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if (cvtRawToEngBpt(&val,pai->linr,pai->init,(void *)&pai->pbrk,&pai->lbrk)!=0) {
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recGblSetSevr(pai,SOFT_ALARM,INVALID_ALARM);
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}
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}
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/* apply smoothing algorithm */
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if (pai->smoo != 0.0){
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if (pai->init) pai->val = val; /* initial condition */
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pai->val = val * (1.00 - pai->smoo) + (pai->val * pai->smoo);
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}else{
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pai->val = val;
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}
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pai->udf = FALSE;
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return;
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}
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static void monitor(aiRecord *pai)
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{
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unsigned short monitor_mask;
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double delta;
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monitor_mask = recGblResetAlarms(pai);
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/* check for value change */
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delta = pai->mlst - pai->val;
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if(delta<0.0) delta = -delta;
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if (delta > pai->mdel) {
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/* post events for value change */
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monitor_mask |= DBE_VALUE;
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/* update last value monitored */
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pai->mlst = pai->val;
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}
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/* check for archive change */
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delta = pai->alst - pai->val;
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if(delta<0.0) delta = -delta;
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if (delta > pai->adel) {
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/* post events on value field for archive change */
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monitor_mask |= DBE_LOG;
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/* update last archive value monitored */
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pai->alst = pai->val;
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}
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/* send out monitors connected to the value field */
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if (monitor_mask){
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db_post_events(pai,&pai->val,monitor_mask);
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if(pai->oraw != pai->rval) {
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db_post_events(pai,&pai->rval,monitor_mask);
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pai->oraw = pai->rval;
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}
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}
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return;
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}
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static long readValue(aiRecord *pai)
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{
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long status;
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aidset *pdset = (aidset *) (pai->dset);
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if (pai->pact == TRUE){
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status=(*pdset->read_ai)(pai);
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return(status);
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}
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status = dbGetLink(&(pai->siml),DBR_USHORT,&(pai->simm),0,0);
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if (status)
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return(status);
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if (pai->simm == NO){
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status=(*pdset->read_ai)(pai);
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return(status);
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}
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if (pai->simm == YES){
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status = dbGetLink(&(pai->siol),DBR_DOUBLE,&(pai->sval),0,0);
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if (status==0){
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pai->val=pai->sval;
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pai->udf=FALSE;
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}
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status=2; /* dont convert */
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} else {
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status=-1;
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recGblSetSevr(pai,SOFT_ALARM,INVALID_ALARM);
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return(status);
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}
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recGblSetSevr(pai,SIMM_ALARM,pai->sims);
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return(status);
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}
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