Initial revision
This commit is contained in:
Mike Bordua
360
src/rec/recSubArray.c
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360
src/rec/recSubArray.c
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/* recSubArray.c */
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/* recSubArray.c - Record Support Routines for SubArray records
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*
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*
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* Author: Carl Lionberger
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* Date: 090293
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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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* The Control Systems Group
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* Systems Engineering Department
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* Lawrence Berkeley Laboratory
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*
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* NOTES:
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* Derived from waveform record.
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* Modification Log:
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* -----------------
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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 <stdlib.h>
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#include <string.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 <dbScan.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 <subArrayRecord.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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static long cvt_dbaddr();
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static long get_array_info();
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static long put_array_info();
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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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#define get_alarm_double NULL
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struct rset subArrayRSET={
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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 sadset { /* subArray 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_sa; /*returns: (-1,0)=>(failure,success)*/
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};
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/*sizes of field types*/
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static int sizeofTypes[] = {MAX_STRING_SIZE,1,1,2,2,4,4,4,8,2};
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static void monitor();
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static long readValue();
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/*Following from timing system */
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extern unsigned int gts_trigger_counter;
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static long init_record(psa,pass)
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struct subArrayRecord *psa;
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int pass;
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{
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struct sadset *pdset;
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long status;
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if (pass==0){
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if(psa->malm<=0) psa->malm=1;
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if(psa->ftvl>DBF_ENUM) psa->ftvl=2;
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psa->bptr = (char *)calloc(psa->malm,sizeofTypes[psa->ftvl]);
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psa->nord = 0;
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return(0);
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}
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/* must have dset defined */
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if(!(pdset = (struct sadset *)(psa->dset))) {
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recGblRecordError(S_dev_noDSET,(void *)psa,"sa: init_record");
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return(S_dev_noDSET);
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}
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/* must have read_sa function defined */
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if( (pdset->number < 5) || (pdset->read_sa == NULL) ) {
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recGblRecordError(S_dev_missingSup,(void *)psa,"sa: 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)(psa))) return(status);
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}
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return(0);
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}
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static long process(psa)
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struct subArrayRecord *psa;
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{
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struct sadset *pdset = (struct sadset *)(psa->dset);
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long status;
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unsigned char pact=psa->pact;
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if( (pdset==NULL) || (pdset->read_sa==NULL) ) {
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psa->pact=TRUE;
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recGblRecordError(S_dev_missingSup,(void *)psa,"read_sa");
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return(S_dev_missingSup);
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}
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/* event throttling */
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if (psa->scan == SCAN_IO_EVENT){
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if ((psa->evnt != 0) && (gts_trigger_counter != 0)){
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if ((gts_trigger_counter % psa->evnt) != 0){
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return(0);
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}
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}
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}
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if (pact) return(0);
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status=readValue(psa); /* read the new value */
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if (!pact && psa->pact) return(0);
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psa->pact = TRUE;
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psa->udf=FALSE;
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tsLocalTime(&psa->time);
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monitor(psa);
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/* process the forward scan link record */
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recGblFwdLink(psa);
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psa->pact=FALSE;
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return(0);
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}
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static long get_value(psa,pvdes)
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struct subArrayRecord *psa;
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struct valueDes *pvdes;
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{
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pvdes->pvalue = psa->bptr;
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if (!psa->udf && psa->nelm > psa->nord)
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pvdes->no_elements=psa->nord;
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else
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pvdes->no_elements=psa->nelm;
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pvdes->field_type = psa->ftvl;
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return(0);
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}
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static long cvt_dbaddr(paddr)
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struct dbAddr *paddr;
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{
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struct subArrayRecord *psa=(struct subArrayRecord *)paddr->precord;
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paddr->pfield = psa->bptr;
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if (!psa->udf && psa->nelm > psa->nord)
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paddr->no_elements = psa->nord;
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else
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paddr->no_elements = psa->nelm;
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paddr->field_type = psa->ftvl;
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paddr->field_size = sizeofTypes[psa->ftvl];
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paddr->dbr_field_type = psa->ftvl;
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return(0);
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}
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static long get_array_info(paddr,no_elements,offset)
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struct dbAddr *paddr;
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long *no_elements;
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long *offset;
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{
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struct subArrayRecord *psa=(struct subArrayRecord *)paddr->precord;
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if (!psa->udf && psa->nelm > psa->nord)
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*no_elements = psa->nord;
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else
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*no_elements = psa->nelm;
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*offset = 0;
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return(0);
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}
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static long put_array_info(paddr,nNew)
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struct dbAddr *paddr;
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long nNew;
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{
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struct subArrayRecord *psa=(struct subArrayRecord *)paddr->precord;
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if(nNew > psa->malm)
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psa->nord = psa->malm;
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else
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psa->nord = nNew;
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return(0);
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}
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static long get_units(paddr,units)
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struct dbAddr *paddr;
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char *units;
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{
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struct subArrayRecord *psa=(struct subArrayRecord *)paddr->precord;
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strncpy(units,psa->egu,sizeof(psa->egu));
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return(0);
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}
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static long get_precision(paddr,precision)
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struct dbAddr *paddr;
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long *precision;
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{
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struct subArrayRecord *psa=(struct subArrayRecord *)paddr->precord;
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*precision = psa->prec;
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if(paddr->pfield==psa->bptr)
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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(paddr,pgd)
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struct dbAddr *paddr;
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struct dbr_grDouble *pgd;
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{
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struct subArrayRecord *psa=(struct subArrayRecord *)paddr->precord;
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if(paddr->pfield==psa->bptr) {
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pgd->upper_disp_limit = psa->hopr;
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pgd->lower_disp_limit = psa->lopr;
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return(0);
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}
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if(paddr->pfield==(void *)&psa->indx) {
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pgd->upper_disp_limit = psa->malm - 1;
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pgd->lower_disp_limit = 0;
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return(0);
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}
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if(paddr->pfield==(void *)&psa->nelm) {
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pgd->upper_disp_limit = psa->malm;
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pgd->lower_disp_limit = 1;
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return(0);
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}
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recGblGetGraphicDouble(paddr,pgd);
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return(0);
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}
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static long get_control_double(paddr,pcd)
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struct dbAddr *paddr;
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struct dbr_ctrlDouble *pcd;
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{
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struct subArrayRecord *psa=(struct subArrayRecord *)paddr->precord;
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if(paddr->pfield==psa->bptr) {
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pcd->upper_ctrl_limit = psa->hopr;
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pcd->lower_ctrl_limit = psa->lopr;
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return(0);
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}
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if(paddr->pfield==psa->bptr) {
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pcd->upper_ctrl_limit = psa->malm - 1;
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pcd->lower_ctrl_limit = 0;
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return(0);
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}
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if(paddr->pfield==psa->bptr) {
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pcd->upper_ctrl_limit = psa->malm;
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pcd->lower_ctrl_limit = 1;
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return(0);
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}
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recGblGetControlDouble(paddr,pcd);
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return(0);
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}
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static void monitor(psa)
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struct subArrayRecord *psa;
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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(psa,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(psa,&psa->stat,DBE_VALUE);
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db_post_events(psa,&psa->sevr,DBE_VALUE);
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}
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monitor_mask |= (DBE_LOG|DBE_VALUE);
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if(monitor_mask)
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db_post_events(psa, psa->bptr, monitor_mask);
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return;
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}
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static long readValue(psa)
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struct subArrayRecord *psa;
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{
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long status;
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struct sadset *pdset = (struct sadset *) (psa->dset);
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if (psa->nelm > psa->malm)
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{
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psa->nelm = psa->malm;
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}
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if (psa->indx >= psa->malm)
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{
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psa->indx = psa->malm - 1;
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}
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status = (*pdset->read_sa)(psa);
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if (psa->nord <= 0)
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{
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status = -1;
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psa->indx = 0;
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}
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return(status);
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}
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