Marty Kraimer
360 lines
9.8 KiB
C
360 lines
9.8 KiB
C
/* recMbbi.c */
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/* share/src/rec $Id$ */
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/* recMbbi.c - Record Support Routines for multi bit binary Input records
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*
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* Author: Bob Dalesio
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* Date: 5-9-88
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*
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* Control System Software for the GTA Project
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*
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* Copyright 1988, 1989, the Regents of the University of California.
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*
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* This software was produced under a U.S. Government contract
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* (W-7405-ENG-36) at the Los Alamos National Laboratory, which is
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* operated by the University of California for the U.S. Department
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* of Energy.
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*
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* Developed by the Controls and Automation Group (AT-8)
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* Accelerator Technology Division
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* Los Alamos National Laboratory
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*
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* Direct inqueries to:
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* Bob Dalesio, AT-8, Mail Stop H820
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* Los Alamos National Laboratory
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* Los Alamos, New Mexico 87545
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* Phone: (505) 667-3414
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* E-mail: dalesio@luke.lanl.gov
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*
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* Modification Log:
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* -----------------
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* .01 12-12-88 lrd lock the record while processing
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* .02 12-15-88 lrd Process the forward scan link
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* .03 12-23-88 lrd Alarm on locked MAX_LOCKED times
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* .04 01-13-89 lrd delete db_read_mbbi
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* .05 03-29-89 lrd make hardware errors MAJOR
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* remove hw severity spec from database
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* .06 04-07-89 lrd add monitor detection
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* .07 05-03-89 lrd removed process mask from arg list
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* .08 05-29-89 lrd support 16 states
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* .09 05-30-89 lrd fixed masks for allen-bradley IO
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* .10 06-06-89 lrd fixed AB mbbi conversion - signal wrong
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* added ability to enter raw numbers if no
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* states are defined - like the mbbo
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* .11 12-06-89 lrd add database fetch support
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* .12 02-08-90 lrd add Allen-Bradley PLC support
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* .13 10-31-90 mrk changes for new record and device support
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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 <strLib.h>
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#include <alarm.h>
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#include <dbAccess.h>
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#include <dbDefs.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 <link.h>
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#include <recSup.h>
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#include <special.h>
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#include <mbbiRecord.h>
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/* Create RSET - Record Support Entry Table*/
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long report();
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#define initialize NULL
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long init_record();
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long process();
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long special();
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#define get_precision NULL
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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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long get_enum_str();
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#define get_units NULL
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#define get_graphic_double NULL
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#define get_control_double NULL
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long get_enum_strs();
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struct 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_precision,
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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_enum_str,
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get_units,
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get_graphic_double,
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get_control_double,
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get_enum_strs };
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struct mbbidset { /* multi bit binary input dset */
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long number;
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DEVSUPFUN report;
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DEVSUPFUN init;
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DEVSUPFUN init_record; /*returns: (-1,0)=>(failure,success)*/
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DEVSUPFUN get_ioint_info;
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DEVSUPFUN read_mbbi;/*(-1,0,1)=>(failure,success,don't Continue*/
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};
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void alarm();
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void monitor();
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static long report(fp,paddr)
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FILE *fp;
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struct dbAddr *paddr;
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{
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struct mbbiRecord *pmbbi=(struct mbbiRecord*)(paddr->precord);
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if(recGblReportDbCommon(fp,paddr)) return(-1);
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if(fprintf(fp,"VAL %d\n",pmbbi->val)) return(-1);
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if(recGblReportLink(fp,"INP ",&(pmbbi->inp))) return(-1);
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if(recGblReportLink(fp,"FLNK",&(pmbbi->flnk))) return(-1);
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if(fprintf(fp,"RVAL 0x%-8X\n",pmbbi->rval)) return(-1);
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return(0);
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}
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static void init_common(pmbbi)
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struct mbbiRecord *pmbbi;
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{
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unsigned long *pstate_values;
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short i;
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/* determine if any states are defined */
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pstate_values = &(pmbbi->zrvl);
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pmbbi->sdef = FALSE;
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for (i=0; i<16; i++) {
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if (*(pstate_values+i)) {
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pmbbi->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(pmbbi)
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struct mbbiRecord *pmbbi;
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{
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struct mbbidset *pdset;
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long status;
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init_common(pmbbi);
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pmbbi->mlst = -1;
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pmbbi->lalm = -1;
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if(!(pdset = (struct mbbidset *)(pmbbi->dset))) {
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recGblRecordError(S_dev_noDSET,pmbbi,"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,pmbbi,"mbbi: init_record");
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return(S_dev_missingSup);
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}
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if( pdset->init_record ) {
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if((status=(*pdset->init_record)(pmbbi,process))) return(status);
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}
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return(0);
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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 mbbiRecord *pmbbi = (struct mbbiRecord *)(paddr->precord);
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int special_type = paddr->special;
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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(pmbbi);
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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_value(pmbbi,pvdes)
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struct mbbiRecord *pmbbi;
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struct valueDes *pvdes;
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{
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pvdes->field_type = DBF_ENUM;
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pvdes->no_elements=1;
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(unsigned short *)(pvdes->pvalue) = &pmbbi->val;
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return(0);
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}
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static long get_enum_str(paddr,pstring)
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struct dbAddr *paddr;
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char *pstring;
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{
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struct mbbiRecord *pmbbi=(struct mbbiRecord *)paddr->precord;
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char *psource;
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unsigned short val=pmbbi->val;
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if(val<= 15) {
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psource = (pmbbi->zrst);
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psource += (val * sizeof(pmbbi->zrst));
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strncpy(pstring,psource,sizeof(pmbbi->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(paddr,pes)
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struct dbAddr *paddr;
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struct dbr_enumStrs *pes;
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{
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struct mbbiRecord *pmbbi=(struct mbbiRecord *)paddr->precord;
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char *psource;
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int i;
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pes->no_str = 16;
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bzero(pes->strs,sizeof(pes->strs));
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for(i=0,psource=(pmbbi->zrst); i<15; i++, psource += sizeof(pmbbi->zrst) )
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strncpy(pes->strs[i],psource,sizeof(pmbbi->zrst));
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return(0);
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}
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static long process(paddr)
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struct dbAddr *paddr;
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{
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struct mbbiRecord *pmbbi=(struct mbbiRecord *)(paddr->precord);
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struct mbbidset *pdset = (struct mbbidset *)(pmbbi->dset);
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long status;
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unsigned long *pstate_values;
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short i,val;
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if( (pdset==NULL) || (pdset->read_mbbi==NULL) ) {
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pmbbi->pact=TRUE;
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recGblRecordError(S_dev_missingSup,pmbbi,"read_mbbi");
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return(S_dev_missingSup);
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}
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status=(*pdset->read_mbbi)(pmbbi); /* read the new value */
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pmbbi->pact = TRUE;
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/* status is one if an asynchronous record is being processed*/
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if(status==1) return(0);
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/* convert the value */
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if (pmbbi->sdef){
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pstate_values = &(pmbbi->zrvl);
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val = -1; /* initalize to unknown state*/
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for (i = 0; i < 16; i++){
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if (*pstate_values == pmbbi->rval){
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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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*((unsigned short *)(&val)) = (unsigned short)(pmbbi->rval);
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}
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pmbbi->val = val;
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/* check for alarms */
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alarm(pmbbi);
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/* check event list */
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monitor(pmbbi);
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/* process the forward scan link record */
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if (pmbbi->flnk.type==DB_LINK) dbScanPassive(&pmbbi->flnk.value.db_link.pdbAddr);
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pmbbi->pact=FALSE;
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return(status);
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}
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static void alarm(pmbbi)
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struct mbbiRecord *pmbbi;
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{
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unsigned short *severities;
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short val=pmbbi->val;
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if(val = pmbbi->lalm) return;
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pmbbi->lalm = val;
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/* check for state alarm */
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/* unknown state */
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if ((val < 0) || (val > 15)){
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if (pmbbi->nsev<pmbbi->unsv){
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pmbbi->nsta = STATE_ALARM;
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pmbbi->nsev = pmbbi->unsv;
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}
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} else {
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/* in a state which is an error */
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severities = (unsigned short *)&(pmbbi->zrsv);
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if (pmbbi->nsev<severities[pmbbi->val]){
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pmbbi->nsta = STATE_ALARM;
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pmbbi->nsev = severities[pmbbi->val];
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}
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}
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/* check for cos alarm */
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if (pmbbi->nsev<pmbbi->cosv){
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pmbbi->nsta = COS_ALARM;
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pmbbi->nsev = pmbbi->cosv;
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return;
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}
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return;
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}
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static void monitor(pmbbi)
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struct mbbiRecord *pmbbi;
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{
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unsigned short monitor_mask;
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short stat,sevr,nsta,nsev;
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/* get previous stat and sevr and new stat and sevr*/
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stat=pmbbi->stat;
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sevr=pmbbi->sevr;
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nsta=pmbbi->nsta;
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nsev=pmbbi->nsev;
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/*set current stat and sevr*/
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pmbbi->stat = nsta;
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pmbbi->sevr = nsev;
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pmbbi->nsta = 0;
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pmbbi->nsev = 0;
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/* anyone waiting for an event on this record */
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if (pmbbi->mlis.count == 0) return;
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/* Flags which events to fire on the value field */
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monitor_mask = 0;
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/* alarm condition changed this scan */
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if (stat!=nsta || sevr!=nsev){
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/* post events for alarm condition change*/
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monitor_mask = DBE_ALARM;
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/* post stat and sevr fields */
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db_post_events(pmbbi,&pmbbi->stat,DBE_VALUE);
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db_post_events(pmbbi,&pmbbi->sevr,DBE_VALUE);
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}
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/* check for value change */
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if (pmbbi->mlst != pmbbi->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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pmbbi->mlst = pmbbi->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(pmbbi,&pmbbi->val,monitor_mask);
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}
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if(pmbbi->oraw!=pmbbi->rval) {
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db_post_events(pmbbi,&pmbbi->rval,monitor_mask);
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pmbbi->oraw = pmbbi->rval;
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}
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return;
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}
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