240 lines
6.7 KiB
C
240 lines
6.7 KiB
C
/* recStringout.c */
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/* share/src/rec $Id$ */
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/* recStringout.c - Record Support Routines for Stringout records */
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/*
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* Author: Janet Anderson
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* Date: 4/23/91
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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 10-24-91 jba Removed unused code
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* .02 11-11-91 jba Moved set and reset of alarm stat and sevr to macros
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* .03 02-05-92 jba Changed function arguments from paddr to precord
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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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*/
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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 <dbDefs.h>
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#include <dbAccess.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 <stringoutRecord.h>
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/* Create RSET - Record Support Entry Table*/
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#define report NULL
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#define initialize NULL
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static long init_record();
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static long process();
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#define special NULL
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static long get_value();
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#define cvt_dbaddr NULL
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#define get_array_info NULL
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#define put_array_info NULL
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#define get_units NULL
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#define get_precision NULL
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#define get_enum_str NULL
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#define get_enum_strs NULL
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#define put_enum_str NULL
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#define get_graphic_double NULL
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#define get_control_double NULL
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#define get_alarm_double NULL
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struct rset stringoutRSET={
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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 stringoutdset { /* stringout 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_stringout;/*(-1,0)=>(failure,success)*/
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};
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void monitor();
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/* Added for Channel Access Links */
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long dbCaAddInlink();
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long dbCaGetLink();
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static long init_record(pstringout,pass)
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struct stringoutRecord *pstringout;
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int pass;
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{
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struct stringoutdset *pdset;
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long status=0;
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if (pass==0) return(0);
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if(!(pdset = (struct stringoutdset *)(pstringout->dset))) {
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recGblRecordError(S_dev_noDSET,pstringout,"stringout: init_record");
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return(S_dev_noDSET);
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}
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/* must have write_stringout functions defined */
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if( (pdset->number < 5) || (pdset->write_stringout == NULL) ) {
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recGblRecordError(S_dev_missingSup,pstringout,"stringout: init_record");
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return(S_dev_missingSup);
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}
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/* get the initial value dol is a constant*/
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if (pstringout->dol.type == CONSTANT){
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if (pstringout->dol.value.value!=0.0 ){
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sprintf(pstringout->val,"%-14.7g",pstringout->dol.value.value);
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}
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pstringout->udf=FALSE;
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}
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if (pstringout->dol.type == PV_LINK)
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{
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status = dbCaAddInlink(&(pstringout->dol), (void *) pstringout, "VAL");
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if(status) return(status);
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pstringout->udf=FALSE;
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} /* endif */
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if( pdset->init_record ) {
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if((status=(*pdset->init_record)(pstringout))) return(status);
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}
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return(0);
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}
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static long process(pstringout)
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struct stringoutRecord *pstringout;
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{
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struct stringoutdset *pdset = (struct stringoutdset *)(pstringout->dset);
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long status=0;
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unsigned char pact=pstringout->pact;
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if( (pdset==NULL) || (pdset->write_stringout==NULL) ) {
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pstringout->pact=TRUE;
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recGblRecordError(S_dev_missingSup,pstringout,"write_stringout");
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return(S_dev_missingSup);
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}
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if (!pstringout->pact) {
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if((pstringout->dol.type == DB_LINK) && (pstringout->omsl == CLOSED_LOOP)){
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long options=0;
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long nRequest=1;
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pstringout->pact = TRUE;
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status = dbGetLink(&pstringout->dol.value.db_link,
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(struct dbCommon *)pstringout,
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DBR_STRING,pstringout->val,&options,&nRequest);
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pstringout->pact = FALSE;
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if(!status==0){
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recGblSetSevr(pstringout,LINK_ALARM,VALID_ALARM);
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} else pstringout->udf=FALSE;
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}
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if((pstringout->dol.type == CA_LINK) && (pstringout->omsl == CLOSED_LOOP)){
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pstringout->pact = TRUE;
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status = dbCaGetLink(&(pstringout->dol));
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pstringout->pact = FALSE;
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if(!status==0){
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recGblSetSevr(pstringout,LINK_ALARM,VALID_ALARM);
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} else pstringout->udf=FALSE;
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} /* endif */
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}
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if(status==0) {
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status=(*pdset->write_stringout)(pstringout); /* write the new value */
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}
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/* check if device support set pact */
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if ( !pact && pstringout->pact ) return(0);
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pstringout->pact = TRUE;
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tsLocalTime(&pstringout->time);
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/* check event list */
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monitor(pstringout);
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/* process the forward scan link record */
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if (pstringout->flnk.type==DB_LINK)
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dbScanPassive(((struct dbAddr *)pstringout->flnk.value.db_link.pdbAddr)->precord);
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pstringout->pact=FALSE;
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return(status);
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}
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static long get_value(pstringout,pvdes)
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struct stringoutRecord *pstringout;
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struct valueDes *pvdes;
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{
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pvdes->field_type = DBF_STRING;
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pvdes->no_elements=1;
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pvdes->pvalue = (void *)(&pstringout->val[0]);
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return(0);
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}
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static void monitor(pstringout)
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struct stringoutRecord *pstringout;
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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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recGblResetSevr(pstringout,stat,sevr,nsta,nsev);
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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 nsev fields */
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db_post_events(pstringout,&pstringout->stat,DBE_VALUE);
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db_post_events(pstringout,&pstringout->sevr,DBE_VALUE);
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}
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if(strncmp(pstringout->oval,pstringout->val,sizeof(pstringout->val))) {
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db_post_events(pstringout,&(pstringout->val[0]),monitor_mask|DBE_VALUE);
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strncpy(pstringout->oval,pstringout->val,sizeof(pstringout->val));
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}
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return;
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}
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