473 lines
13 KiB
C
473 lines
13 KiB
C
/* recBo.c */
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/* base/src/rec $Id$ */
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/* recBo.c - Record Support Routines for Binary Output records */
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/*
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* Original Author: Bob Dalesio
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* Current Author: Marty Kraimer
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* Date: 7-14-89
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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 12-9-88 lrd lock the record during 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_bo and db_write_bo
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* .05 01-20-89 lrd fixed vx includes
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* .06 03-29-89 lrd make hardware errors MAJOR
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* remove hw severity spec from database
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* add continuous control
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* .07 04-06-89 lrd add monitor detection
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* .08 05-03-89 lrd removed process mask from arg list
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* .09 08-16-89 lrd add ability to do softchannel momentary
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* .10 08-17-89 lrd add soft channel support
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* .11 01-31-90 lrd add the plc_flag arg to the ab_bodriver call
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* .12 03-21-90 lrd add db_post_events for RVAL and RBV
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* .13 04-02-90 ba/lrd add monitor handling for momentary outputs
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* remove rbv arg to ab_bodriver
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* .14 04-05-90 lrd make momentary output handling a task
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* as the watchdog runs at interrupt level
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* .15 04-11-90 lrd make locals static
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* .16 05-02-90 lrd fix initial value set in the DOL field
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* .17 10-10-90 mrk Changes for record and device support
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* .18 11-11-91 jba Moved set and reset of alarm stat and sevr to macros
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* .19 01-08-92 jba Added cast in call to wdStart to remove compile warning message
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* .20 02-05-92 jba Changed function arguments from paddr to precord
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* .21 02-28-92 jba ANSI C changes
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* .22 03-03-92 jba Changed callback handling
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* .23 04-10-92 jba pact now used to test for asyn processing, not status
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* .24 04-18-92 jba removed process from dev init_record parms
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* .25 07-15-92 jba changed VALID_ALARM to INVALID alarm
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* .26 07-16-92 jba added invalid alarm fwd link test and chngd fwd lnk to macro
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* .27 08-14-92 jba Added simulation processing
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* .28 08-19-92 jba Added code for invalid alarm output action
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* .29 11-01-93 jba Added get_precision routine
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* .30 03-29-94 mcn Converted to fast links
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* .31 04-05-94 mrk ANSI changes to callback routines
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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 "osiWatchdog.h"
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#include "osiClock.h"
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#include "epicsPrint.h"
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#include "alarm.h"
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#include "callback.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 "recSup.h"
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#include "special.h"
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#define GEN_SIZE_OFFSET
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#include "boRecord.h"
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#undef GEN_SIZE_OFFSET
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#include "menuIvoa.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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#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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static long get_precision();
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static long get_enum_str();
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static long get_enum_strs();
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static long put_enum_str();
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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 boRSET={
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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 bodset { /* binary output 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:(0,2)=>(success,success no convert*/
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DEVSUPFUN get_ioint_info;
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DEVSUPFUN write_bo;/*returns: (-1,0)=>(failure,success)*/
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};
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/* control block for callback*/
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struct callback {
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CALLBACK callback;
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struct dbCommon *precord;
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watchdogId wd_id;
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};
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static void alarm();
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static void monitor();
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static long writeValue();
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void callbackRequest();
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static void myCallback(pcallback)
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struct callback *pcallback;
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{
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struct boRecord *pbo=(struct boRecord *)pcallback->precord;
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int wait_time;
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dbScanLock((struct dbCommon *)pbo);
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if(pbo->pact) {
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wait_time = (int)(pbo->high * clockGetRate());
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if (pbo->val==1 && wait_time>0) {
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struct callback *pcallback;
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pcallback = (struct callback *)(pbo->rpvt);
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if(pcallback->wd_id==NULL) pcallback->wd_id = watchdogCreate();
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callbackSetPriority(pbo->prio, &pcallback->callback);
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watchdogStart(pcallback->wd_id, wait_time,
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(WATCHDOGFUNC)callbackRequest, (void *)pcallback);
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}
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} else {
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pbo->val = 0;
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dbProcess((struct dbCommon *)pbo);
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}
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dbScanUnlock((struct dbCommon *)pbo);
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}
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static long init_record(pbo,pass)
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struct boRecord *pbo;
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int pass;
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{
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struct bodset *pdset;
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long status=0;
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struct callback *pcallback;
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if (pass==0) return(0);
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/* bo.siml must be a CONSTANT or a PV_LINK or a DB_LINK */
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if (pbo->siml.type == CONSTANT) {
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recGblInitConstantLink(&pbo->siml,DBF_USHORT,&pbo->simm);
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}
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if(!(pdset = (struct bodset *)(pbo->dset))) {
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recGblRecordError(S_dev_noDSET,(void *)pbo,"bo: init_record");
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return(S_dev_noDSET);
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}
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/* must have write_bo functions defined */
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if( (pdset->number < 5) || (pdset->write_bo == NULL) ) {
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recGblRecordError(S_dev_missingSup,(void *)pbo,"bo: init_record");
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return(S_dev_missingSup);
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}
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/* get the initial value */
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if (pbo->dol.type == CONSTANT) {
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unsigned short ival = 0;
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if(recGblInitConstantLink(&pbo->dol,DBF_USHORT,&ival)) {
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if (ival == 0) pbo->val = 0;
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else pbo->val = 1;
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pbo->udf = FALSE;
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}
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}
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pcallback = (struct callback *)(calloc(1,sizeof(struct callback)));
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pbo->rpvt = (void *)pcallback;
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callbackSetCallback(myCallback,&pcallback->callback);
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pcallback->precord = (struct dbCommon *)pbo;
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if( pdset->init_record ) {
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status=(*pdset->init_record)(pbo);
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if(status==0) {
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if(pbo->rval==0) pbo->val = 0;
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else pbo->val = 1;
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pbo->udf = FALSE;
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} else if (status==2) status=0;
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}
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/* convert val to rval */
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if ( pbo->mask != 0 ) {
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if(pbo->val==0) pbo->rval = 0;
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else pbo->rval = pbo->mask;
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} else pbo->rval = (unsigned long)pbo->val;
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return(status);
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}
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static long process(pbo)
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struct boRecord *pbo;
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{
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struct bodset *pdset = (struct bodset *)(pbo->dset);
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long status=0;
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int wait_time;
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unsigned char pact=pbo->pact;
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if( (pdset==NULL) || (pdset->write_bo==NULL) ) {
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pbo->pact=TRUE;
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recGblRecordError(S_dev_missingSup,(void *)pbo,"write_bo");
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return(S_dev_missingSup);
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}
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if (!pbo->pact) {
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if ((pbo->dol.type != CONSTANT) && (pbo->omsl == CLOSED_LOOP)){
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unsigned short val;
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pbo->pact = TRUE;
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status=dbGetLink(&pbo->dol,DBR_USHORT, &val,0,0);
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pbo->pact = FALSE;
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if(status==0){
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pbo->val = val;
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pbo->udf = FALSE;
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}else {
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recGblSetSevr(pbo,LINK_ALARM,INVALID_ALARM);
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}
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}
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/* convert val to rval */
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if ( pbo->mask != 0 ) {
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if(pbo->val==0) pbo->rval = 0;
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else pbo->rval = pbo->mask;
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} else pbo->rval = (unsigned long)pbo->val;
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}
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/* check for alarms */
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alarm(pbo);
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if (pbo->nsev < INVALID_ALARM )
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status=writeValue(pbo); /* write the new value */
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else {
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switch (pbo->ivoa) {
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case (menuIvoaContinue_normally) :
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status=writeValue(pbo); /* write the new value */
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break;
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case (menuIvoaDon_t_drive_outputs) :
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break;
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case (menuIvoaSet_output_to_IVOV) :
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if(pbo->pact == FALSE){
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/* convert val to rval */
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pbo->val=pbo->ivov;
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if ( pbo->mask != 0 ) {
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if(pbo->val==0) pbo->rval = 0;
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else pbo->rval = pbo->mask;
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} else pbo->rval = (unsigned long)pbo->val;
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}
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status=writeValue(pbo); /* write the new value */
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break;
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default :
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status=-1;
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recGblRecordError(S_db_badField,(void *)pbo,
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"bo:process Illegal IVOA field");
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}
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}
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/* check if device support set pact */
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if ( !pact && pbo->pact ) return(0);
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pbo->pact = TRUE;
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recGblGetTimeStamp(pbo);
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wait_time = (int)(pbo->high * clockGetRate());
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if (pbo->val==1 && wait_time>0) {
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struct callback *pcallback;
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pcallback = (struct callback *)(pbo->rpvt);
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if(pcallback->wd_id==0) pcallback->wd_id = watchdogCreate();
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callbackSetPriority(pbo->prio, &pcallback->callback);
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watchdogStart(pcallback->wd_id, wait_time,
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(WATCHDOGFUNC)callbackRequest, (void *)pcallback);
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}
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/* check event list */
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monitor(pbo);
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/* process the forward scan link record */
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recGblFwdLink(pbo);
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pbo->pact=FALSE;
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return(status);
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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 boRecord *pbo=(struct boRecord *)paddr->precord;
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if(paddr->pfield == (void *)&pbo->high) *precision=2;
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else recGblGetPrec(paddr,precision);
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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 boRecord *pbo=(struct boRecord *)paddr->precord;
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int index;
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unsigned short *pfield = (unsigned short *)paddr->pfield;
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index = dbGetFieldIndex(paddr);
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if(index!=boRecordVAL) {
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strcpy(pstring,"Illegal_Value");
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} else if(*pfield==0) {
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strncpy(pstring,pbo->znam,sizeof(pbo->znam));
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pstring[sizeof(pbo->znam)] = 0;
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} else if(*pfield==1) {
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strncpy(pstring,pbo->onam,sizeof(pbo->onam));
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pstring[sizeof(pbo->onam)] = 0;
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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 boRecord *pbo=(struct boRecord *)paddr->precord;
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/*SETTING no_str=0 breaks channel access clients*/
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pes->no_str = 2;
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memset(pes->strs,'\0',sizeof(pes->strs));
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strncpy(pes->strs[0],pbo->znam,sizeof(pbo->znam));
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if(*pbo->znam!=0) pes->no_str=1;
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strncpy(pes->strs[1],pbo->onam,sizeof(pbo->onam));
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if(*pbo->onam!=0) pes->no_str=2;
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return(0);
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}
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static long put_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 boRecord *pbo=(struct boRecord *)paddr->precord;
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if(strncmp(pstring,pbo->znam,sizeof(pbo->znam))==0) pbo->val = 0;
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else if(strncmp(pstring,pbo->onam,sizeof(pbo->onam))==0) pbo->val = 1;
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else return(S_db_badChoice);
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return(0);
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}
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static void alarm(pbo)
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struct boRecord *pbo;
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{
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unsigned short val = pbo->val;
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/* check for udf alarm */
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if(pbo->udf == TRUE ){
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recGblSetSevr(pbo,UDF_ALARM,INVALID_ALARM);
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}
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/* check for state alarm */
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if (val == 0){
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recGblSetSevr(pbo,STATE_ALARM,pbo->zsv);
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}else{
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recGblSetSevr(pbo,STATE_ALARM,pbo->osv);
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}
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/* check for cos alarm */
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if(val == pbo->lalm) return;
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recGblSetSevr(pbo,COS_ALARM,pbo->cosv);
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pbo->lalm = val;
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return;
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}
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static void monitor(pbo)
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struct boRecord *pbo;
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{
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unsigned short monitor_mask;
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monitor_mask = recGblResetAlarms(pbo);
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/* check for value change */
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if (pbo->mlst != pbo->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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pbo->mlst = pbo->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(pbo,&pbo->val,monitor_mask);
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}
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if(pbo->oraw!=pbo->rval) {
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db_post_events(pbo,&pbo->rval,
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monitor_mask|DBE_VALUE|DBE_LOG);
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pbo->oraw = pbo->rval;
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}
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if(pbo->orbv!=pbo->rbv) {
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db_post_events(pbo,&pbo->rbv,
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monitor_mask|DBE_VALUE|DBE_LOG);
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pbo->orbv = pbo->rbv;
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}
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return;
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}
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static long writeValue(pbo)
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struct boRecord *pbo;
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{
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long status;
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struct bodset *pdset = (struct bodset *) (pbo->dset);
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if (pbo->pact == TRUE){
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status=(*pdset->write_bo)(pbo);
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return(status);
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}
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status=dbGetLink(&pbo->siml,DBR_USHORT, &pbo->simm,0,0);
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if (status)
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return(status);
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if (pbo->simm == NO){
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status=(*pdset->write_bo)(pbo);
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return(status);
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}
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if (pbo->simm == YES){
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status=dbPutLink(&(pbo->siol),DBR_USHORT, &(pbo->val),1);
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} else {
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status=-1;
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recGblSetSevr(pbo,SOFT_ALARM,INVALID_ALARM);
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return(status);
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}
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recGblSetSevr(pbo,SIMM_ALARM,pbo->sims);
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return(status);
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}
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