309 lines
7.3 KiB
C
309 lines
7.3 KiB
C
/*************************************************************************\
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* Copyright (c) 2002 Lawrence Berkeley Laboratory,The Control Systems
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* Group, Systems Engineering Department
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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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/* 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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* 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 <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 "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 "recGbl.h"
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#define GEN_SIZE_OFFSET
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#include "subArrayRecord.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(subArrayRecord *psa, int pass);
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static long process(subArrayRecord *psa);
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#define special NULL
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#define get_value NULL
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static long cvt_dbaddr(DBADDR *paddr);
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static long get_array_info(DBADDR *paddr, long *no_elements, long *offset);
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static long put_array_info(DBADDR *paddr, long nNew);
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static long get_units(DBADDR *paddr, char *units);
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static long get_precision(DBADDR *paddr, long *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(DBADDR *paddr, struct dbr_grDouble *pgd);
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static long get_control_double(DBADDR *paddr, struct dbr_ctrlDouble *pcd);
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#define get_alarm_double NULL
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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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};
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epicsExportAddress(rset,subArrayRSET);
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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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static void monitor(subArrayRecord *psa);
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static long readValue(subArrayRecord *psa);
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static long init_record(subArrayRecord *psa, int pass)
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{
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struct sadset *pdset;
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if (pass==0){
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if (psa->malm <= 0)
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psa->malm = 1;
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if (psa->ftvl > DBF_ENUM)
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psa->ftvl = DBF_UCHAR;
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psa->bptr = calloc(psa->malm, dbValueSize(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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return (*pdset->init_record)(psa);
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return 0;
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}
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static long process(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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if (pact && psa->busy) 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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recGblGetTimeStamp(psa);
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psa->udf = !!status; /* 0 or 1 */
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if (status)
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recGblSetSevr(psa, UDF_ALARM, INVALID_ALARM);
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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 cvt_dbaddr(DBADDR *paddr)
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{
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subArrayRecord *psa = (subArrayRecord *) paddr->precord;
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paddr->pfield = psa->bptr;
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paddr->no_elements = psa->malm;
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paddr->field_type = psa->ftvl;
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paddr->field_size = dbValueSize(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(DBADDR *paddr, long *no_elements, long *offset)
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{
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subArrayRecord *psa = (subArrayRecord *) paddr->precord;
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if (psa->udf)
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*no_elements = 0;
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else
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*no_elements = psa->nord;
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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(DBADDR *paddr, long nNew)
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{
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subArrayRecord *psa = (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(DBADDR *paddr, char *units)
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{
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subArrayRecord *psa = (subArrayRecord *) paddr->precord;
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strncpy(units, psa->egu, DB_UNITS_SIZE);
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return 0;
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}
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static long get_precision(DBADDR *paddr, long *precision)
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{
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subArrayRecord *psa = (subArrayRecord *) paddr->precord;
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int fieldIndex = dbGetFieldIndex(paddr);
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*precision = psa->prec;
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if (fieldIndex != subArrayRecordVAL)
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recGblGetPrec(paddr, precision);
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return 0;
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}
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static long get_graphic_double(DBADDR *paddr, struct dbr_grDouble *pgd)
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{
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subArrayRecord *psa = (subArrayRecord *) paddr->precord;
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switch (dbGetFieldIndex(paddr)) {
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case subArrayRecordVAL:
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pgd->upper_disp_limit = psa->hopr;
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pgd->lower_disp_limit = psa->lopr;
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break;
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case subArrayRecordINDX:
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pgd->upper_disp_limit = psa->malm - 1;
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pgd->lower_disp_limit = 0;
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break;
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case subArrayRecordNELM:
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pgd->upper_disp_limit = psa->malm;
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pgd->lower_disp_limit = 1;
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break;
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default:
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recGblGetGraphicDouble(paddr, pgd);
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}
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return 0;
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}
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static long get_control_double(DBADDR *paddr, struct dbr_ctrlDouble *pcd)
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{
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subArrayRecord *psa = (subArrayRecord *) paddr->precord;
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switch (dbGetFieldIndex(paddr)) {
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case subArrayRecordVAL:
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pcd->upper_ctrl_limit = psa->hopr;
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pcd->lower_ctrl_limit = psa->lopr;
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break;
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case subArrayRecordINDX:
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pcd->upper_ctrl_limit = psa->malm - 1;
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pcd->lower_ctrl_limit = 0;
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break;
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case subArrayRecordNELM:
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pcd->upper_ctrl_limit = psa->malm;
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pcd->lower_ctrl_limit = 1;
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break;
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default:
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recGblGetControlDouble(paddr, pcd);
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}
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return 0;
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}
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static void monitor(subArrayRecord *psa)
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{
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unsigned short monitor_mask;
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monitor_mask = recGblResetAlarms(psa);
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monitor_mask |= (DBE_LOG|DBE_VALUE);
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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(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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psa->nelm = psa->malm;
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if (psa->indx >= psa->malm)
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psa->indx = psa->malm - 1;
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status = (*pdset->read_sa)(psa);
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if (psa->nord <= 0)
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status = -1;
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return status;
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}
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