b63e381fbe
This must be done if init_record is allowed to change values or monitors may not be posted when values change.
369 lines
9.6 KiB
C
369 lines
9.6 KiB
C
/*************************************************************************\
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* Copyright (c) 2009 Helmholtz-Zentrum Berlin fuer Materialien und Energie.
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* Copyright (c) 2008 UChicago Argonne LLC, as Operator of Argonne
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* National Laboratory.
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* Copyright (c) 2002 The Regents of the University of California, as
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* Operator of Los Alamos National Laboratory.
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* EPICS BASE is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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\*************************************************************************/
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/* $Id$ */
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/*
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* Original Author: Bob Dalesio
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* Date: 5-9-88
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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 "epicsPrint.h"
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#include "alarm.h"
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#include "dbAccess.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 "errMdef.h"
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#include "menuSimm.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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#define GEN_SIZE_OFFSET
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#include "mbbiRecord.h"
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#undef GEN_SIZE_OFFSET
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#include "epicsExport.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(mbbiRecord *, int);
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static long process(mbbiRecord *);
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static long special(DBADDR *, int);
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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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#define get_units NULL
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#define get_precision NULL
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static long get_enum_str(DBADDR *, char *);
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static long get_enum_strs(DBADDR *, struct dbr_enumStrs *);
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static long put_enum_str(DBADDR *, char *);
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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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rset mbbiRSET={
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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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};
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epicsExportAddress(rset,mbbiRSET);
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struct mbbidset { /* multi bit binary 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_mbbi;/*(0,2)=>(success, success no convert)*/
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};
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static void checkAlarms(mbbiRecord *);
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static void monitor(mbbiRecord *);
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static long readValue(mbbiRecord *);
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static void init_common(mbbiRecord *prec)
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{
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epicsUInt32 *pstate_values;
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char *pstate_string;
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short i;
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/* determine if any states are defined */
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pstate_values = &(prec->zrvl); pstate_string = prec->zrst;
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prec->sdef = FALSE;
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for (i=0; i<16; i++, pstate_string += sizeof(prec->zrst)) {
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if((*(pstate_values+i) != 0) || (*pstate_string !='\0')) {
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prec->sdef = TRUE;
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return;
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}
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}
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return;
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}
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static long init_record(mbbiRecord *prec, int pass)
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{
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struct mbbidset *pdset;
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long status;
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if (pass==0) return(0);
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if (prec->siml.type == CONSTANT) {
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recGblInitConstantLink(&prec->siml,DBF_USHORT,&prec->simm);
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}
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if (prec->siol.type == CONSTANT) {
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recGblInitConstantLink(&prec->siol,DBF_USHORT,&prec->sval);
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}
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if(!(pdset = (struct mbbidset *)(prec->dset))) {
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recGblRecordError(S_dev_noDSET,(void *)prec,"mbbi: init_record");
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return(S_dev_noDSET);
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}
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/* must have read_mbbi function defined */
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if( (pdset->number < 5) || (pdset->read_mbbi == NULL) ) {
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recGblRecordError(S_dev_missingSup,(void *)prec,"mbbi: init_record");
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return(S_dev_missingSup);
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}
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/* initialize mask*/
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prec->mask = (1 << prec->nobt) - 1;
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if( pdset->init_record ) {
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if((status=(*pdset->init_record)(prec))) return(status);
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}
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init_common(prec);
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prec->mlst = prec->val;
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prec->lalm = prec->val;
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prec->oraw = prec->rval;
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return(0);
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}
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static long process(mbbiRecord *prec)
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{
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struct mbbidset *pdset = (struct mbbidset *)(prec->dset);
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long status;
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unsigned char pact=prec->pact;
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if( (pdset==NULL) || (pdset->read_mbbi==NULL) ) {
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prec->pact=TRUE;
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recGblRecordError(S_dev_missingSup,(void *)prec,"read_mbbi");
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return(S_dev_missingSup);
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}
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status=readValue(prec); /* read the new value */
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/* check if device support set pact */
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if ( !pact && prec->pact ) return(0);
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prec->pact = TRUE;
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recGblGetTimeStamp(prec);
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if(status==0) { /* convert the value */
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epicsUInt32 *pstate_values;
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short i;
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epicsUInt32 rval = prec->rval;
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prec->udf = FALSE;
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if(prec->shft>0) rval >>= prec->shft;
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if (prec->sdef){
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pstate_values = &(prec->zrvl);
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prec->val = 65535; /* initalize to unknown state*/
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for (i = 0; i < 16; i++){
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if (*pstate_values == rval){
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prec->val = i;
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break;
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}
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pstate_values++;
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}
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}else{
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/* the raw value is the desired value */
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prec->val = (unsigned short)rval;
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}
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}
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else if(status == 2) status = 0;
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/* check for alarms */
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checkAlarms(prec);
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/* check event list */
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monitor(prec);
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/* process the forward scan link record */
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recGblFwdLink(prec);
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prec->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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mbbiRecord *prec = (mbbiRecord *)(paddr->precord);
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int special_type = paddr->special;
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int fieldIndex = dbGetFieldIndex(paddr);
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if(!after) return(0);
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switch(special_type) {
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case(SPC_MOD):
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init_common(prec);
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if (fieldIndex >= mbbiRecordZRST && fieldIndex <= mbbiRecordFFST)
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db_post_events(prec,&prec->val,DBE_PROPERTY);
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return(0);
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default:
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recGblDbaddrError(S_db_badChoice,paddr,"mbbi: special");
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return(S_db_badChoice);
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}
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}
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static long get_enum_str(DBADDR *paddr,char* pstring)
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{
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mbbiRecord *prec=(mbbiRecord *)paddr->precord;
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char *psource;
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int index;
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unsigned short *pfield = (unsigned short *)paddr->pfield;
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unsigned short val=*pfield;
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index = dbGetFieldIndex(paddr);
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if(index!=mbbiRecordVAL) {
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strcpy(pstring,"Illegal_Value");
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} else if(val<= 15) {
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psource = (prec->zrst);
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psource += (val * sizeof(prec->zrst));
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strncpy(pstring,psource,sizeof(prec->zrst));
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} else {
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strcpy(pstring,"Illegal Value");
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}
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return(0);
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}
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static long get_enum_strs(DBADDR *paddr, struct dbr_enumStrs *pes)
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{
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mbbiRecord *prec=(mbbiRecord *)paddr->precord;
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char *psource;
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int i;
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short no_str;
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no_str = 0;
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memset(pes->strs,'\0',sizeof(pes->strs));
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for(i=0,psource=(prec->zrst); i<16; i++, psource += sizeof(prec->zrst) ) {
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strncpy(pes->strs[i],psource,sizeof(prec->zrst));
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if(*psource!=0) no_str=i+1;
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}
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pes->no_str=no_str;
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return(0);
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}
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static long put_enum_str(DBADDR *paddr, char *pstring)
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{
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mbbiRecord *prec=(mbbiRecord *)paddr->precord;
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char *pstate_name;
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short i;
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if (prec->sdef){
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pstate_name = prec->zrst;
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for (i = 0; i < 16; i++){
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if(strncmp(pstate_name,pstring,sizeof(prec->zrst))==0){
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prec->val = i;
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prec->udf = FALSE;
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return(0);
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}
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pstate_name += sizeof(prec->zrst);
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}
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}
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return(S_db_badChoice);
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}
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static void checkAlarms(mbbiRecord *prec)
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{
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unsigned short *severities;
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unsigned short val=prec->val;
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/* check for udf alarm */
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if(prec->udf == TRUE ){
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recGblSetSevr(prec,UDF_ALARM,INVALID_ALARM);
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}
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/* check for state alarm */
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/* unknown state */
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if (val > 15){
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recGblSetSevr(prec,STATE_ALARM,prec->unsv);
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} else {
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/* in a state which is an error */
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severities = (unsigned short *)&(prec->zrsv);
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recGblSetSevr(prec,STATE_ALARM,severities[prec->val]);
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}
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/* check for cos alarm */
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if(val == prec->lalm) return;
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recGblSetSevr(prec,COS_ALARM,prec->cosv);
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prec->lalm = val;
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return;
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}
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static void monitor(mbbiRecord *prec)
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{
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unsigned short monitor_mask;
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monitor_mask = recGblResetAlarms(prec);
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/* check for value change */
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if (prec->mlst != prec->val){
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/* post events for value change and archive change */
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monitor_mask |= (DBE_VALUE | DBE_LOG);
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/* update last value monitored */
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prec->mlst = prec->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(prec,&prec->val,monitor_mask);
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}
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if(prec->oraw!=prec->rval) {
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db_post_events(prec,&prec->rval,monitor_mask|DBE_VALUE);
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prec->oraw = prec->rval;
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}
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return;
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}
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static long readValue(mbbiRecord *prec)
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{
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long status;
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struct mbbidset *pdset = (struct mbbidset *) (prec->dset);
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if (prec->pact == TRUE){
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status=(*pdset->read_mbbi)(prec);
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return(status);
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}
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status=dbGetLink(&(prec->siml),DBR_USHORT,&(prec->simm),0,0);
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if (status)
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return(status);
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if (prec->simm == menuSimmNO){
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status=(*pdset->read_mbbi)(prec);
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return(status);
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}
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if (prec->simm == menuSimmYES){
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status=dbGetLink(&(prec->siol),DBR_ULONG,&(prec->sval),0,0);
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if (status==0){
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prec->val=(unsigned short)prec->sval;
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prec->udf=FALSE;
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}
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status=2; /* dont convert */
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}
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else if (prec->simm == menuSimmRAW){
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status=dbGetLink(&(prec->siol),DBR_ULONG,&(prec->sval),0,0);
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if (status==0){
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prec->rval=prec->sval;
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prec->udf=FALSE;
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}
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status=0; /* convert since we've written RVAL */
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} else {
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status=-1;
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recGblSetSevr(prec,SOFT_ALARM,INVALID_ALARM);
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return(status);
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}
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recGblSetSevr(prec,SIMM_ALARM,prec->sims);
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return(status);
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}
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