330 lines
8.8 KiB
C
330 lines
8.8 KiB
C
/* recBi.c */
|
||
/* base/src/rec $Id$ */
|
||
|
||
/* recBi.c - Record Support Routines for Binary Input records */
|
||
/*
|
||
* Original Author: Bob Dalesio
|
||
* Current Author: Marty Kraimer
|
||
* Date: 7-14-89
|
||
*
|
||
* Experimental Physics and Industrial Control System (EPICS)
|
||
*
|
||
* Copyright 1991, the Regents of the University of California,
|
||
* and the University of Chicago Board of Governors.
|
||
*
|
||
* This software was produced under U.S. Government contracts:
|
||
* (W-7405-ENG-36) at the Los Alamos National Laboratory,
|
||
* and (W-31-109-ENG-38) at Argonne National Laboratory.
|
||
*
|
||
* Initial development by:
|
||
* The Controls and Automation Group (AT-8)
|
||
* Ground Test Accelerator
|
||
* Accelerator Technology Division
|
||
* Los Alamos National Laboratory
|
||
*
|
||
* Co-developed with
|
||
* The Controls and Computing Group
|
||
* Accelerator Systems Division
|
||
* Advanced Photon Source
|
||
* Argonne National Laboratory
|
||
*
|
||
*
|
||
* Modification Log:
|
||
* -----------------
|
||
* .01 12-12-88 lrd lock the record on entry and unlock on exit
|
||
* .02 12-15-88 lrd Process the forward scan link
|
||
* .03 12-23-88 lrd Alarm on locked MAX_LOCKED times
|
||
* .04 01-13-89 lrd delete db_read_bi
|
||
* .05 03-17-89 lrd database link inputs
|
||
* .06 03-29-89 lrd make hardware errors MAJOR
|
||
* remove hw severity spec from database
|
||
* .07 04-06-89 lrd add monitor detection
|
||
* .08 05-03-89 lrd removed process mask from arg list
|
||
* .09 01-31-90 lrd add the plc_flag arg to the ab_bidriver call
|
||
* .10 03-21-90 lrd add db_post_events for RVAL
|
||
* .11 04-11-90 lrd make local variables static
|
||
* .12 10-10-90 mrk Made changes for new record and device support
|
||
* .13 10-24-91 jba Moved comment
|
||
* .14 11-11-91 jba Moved set and reset of alarm stat and sevr to macros
|
||
* .15 02-05-92 jba Changed function arguments from paddr to precord
|
||
* .16 02-28-92 jba ANSI C changes
|
||
* .17 04-10-92 jba pact now used to test for asyn processing, not status
|
||
* .18 04-18-92 jba removed process from dev init_record parms
|
||
* .19 07-15-92 jba changed VALID_ALARM to INVALID alarm
|
||
* .20 07-16-92 jba added invalid alarm fwd link test and chngd fwd lnk to macro
|
||
* .21 08-13-92 jba Added simulation processing
|
||
* .22 03-29-94 mcn Converted to Fast Links
|
||
*/
|
||
|
||
#include <stddef.h>
|
||
#include <stdlib.h>
|
||
#include <stdarg.h>
|
||
#include <stdio.h>
|
||
#include <string.h>
|
||
|
||
#include "dbDefs.h"
|
||
#include "epicsPrint.h"
|
||
#include "alarm.h"
|
||
#include "dbAccess.h"
|
||
#include "dbFldTypes.h"
|
||
#include "dbEvent.h"
|
||
#include "devSup.h"
|
||
#include "errMdef.h"
|
||
#include "recSup.h"
|
||
#include "special.h"
|
||
#define GEN_SIZE_OFFSET
|
||
#include "biRecord.h"
|
||
#undef GEN_SIZE_OFFSET
|
||
/* Create RSET - Record Support Entry Table*/
|
||
#define report NULL
|
||
#define initialize NULL
|
||
static long init_record();
|
||
static long process();
|
||
#define special NULL
|
||
#define get_value NULL
|
||
#define cvt_dbaddr NULL
|
||
#define get_array_info NULL
|
||
#define put_array_info NULL
|
||
#define get_units NULL
|
||
#define get_precision NULL
|
||
static long get_enum_str();
|
||
static long get_enum_strs();
|
||
static long put_enum_str();
|
||
#define get_graphic_double NULL
|
||
#define get_control_double NULL
|
||
#define get_alarm_double NULL
|
||
struct rset biRSET={
|
||
RSETNUMBER,
|
||
report,
|
||
initialize,
|
||
init_record,
|
||
process,
|
||
special,
|
||
get_value,
|
||
cvt_dbaddr,
|
||
get_array_info,
|
||
put_array_info,
|
||
get_units,
|
||
get_precision,
|
||
get_enum_str,
|
||
get_enum_strs,
|
||
put_enum_str,
|
||
get_graphic_double,
|
||
get_control_double,
|
||
get_alarm_double };
|
||
struct bidset { /* binary input dset */
|
||
long number;
|
||
DEVSUPFUN dev_report;
|
||
DEVSUPFUN init;
|
||
DEVSUPFUN init_record; /*returns: (-1,0)=>(failure,success)*/
|
||
DEVSUPFUN get_ioint_info;
|
||
DEVSUPFUN read_bi;/*(0,2)=> success and convert, don't convert)*/
|
||
/* if convert then raw value stored in rval */
|
||
};
|
||
static void alarm();
|
||
static void monitor();
|
||
static long readValue();
|
||
|
||
static long init_record(pbi,pass)
|
||
struct biRecord *pbi;
|
||
int pass;
|
||
{
|
||
struct bidset *pdset;
|
||
long status;
|
||
|
||
if (pass==0) return(0);
|
||
|
||
recGblInitConstantLink(&pbi->siml,DBF_USHORT,&pbi->simm);
|
||
recGblInitConstantLink(&pbi->siol,DBF_USHORT,&pbi->sval);
|
||
if(!(pdset = (struct bidset *)(pbi->dset))) {
|
||
recGblRecordError(S_dev_noDSET,(void *)pbi,"bi: init_record");
|
||
return(S_dev_noDSET);
|
||
}
|
||
/* must have read_bi function defined */
|
||
if( (pdset->number < 5) || (pdset->read_bi == NULL) ) {
|
||
recGblRecordError(S_dev_missingSup,(void *)pbi,"bi: init_record");
|
||
return(S_dev_missingSup);
|
||
}
|
||
if( pdset->init_record ) {
|
||
if((status=(*pdset->init_record)(pbi))) return(status);
|
||
}
|
||
return(0);
|
||
}
|
||
|
||
static long process(pbi)
|
||
struct biRecord *pbi;
|
||
{
|
||
struct bidset *pdset = (struct bidset *)(pbi->dset);
|
||
long status;
|
||
unsigned char pact=pbi->pact;
|
||
|
||
if( (pdset==NULL) || (pdset->read_bi==NULL) ) {
|
||
pbi->pact=TRUE;
|
||
recGblRecordError(S_dev_missingSup,(void *)pbi,"read_bi");
|
||
return(S_dev_missingSup);
|
||
}
|
||
|
||
status=readValue(pbi); /* read the new value */
|
||
/* check if device support set pact */
|
||
if ( !pact && pbi->pact ) return(0);
|
||
pbi->pact = TRUE;
|
||
|
||
recGblGetTimeStamp(pbi);
|
||
if(status==0) { /* convert rval to val */
|
||
if(pbi->rval==0) pbi->val =0;
|
||
else pbi->val = 1;
|
||
pbi->udf = FALSE;
|
||
}
|
||
else if(status==2) status=0;
|
||
/* check for alarms */
|
||
alarm(pbi);
|
||
/* check event list */
|
||
monitor(pbi);
|
||
/* process the forward scan link record */
|
||
recGblFwdLink(pbi);
|
||
|
||
pbi->pact=FALSE;
|
||
return(status);
|
||
}
|
||
|
||
static long get_enum_str(paddr,pstring)
|
||
struct dbAddr *paddr;
|
||
char *pstring;
|
||
{
|
||
struct biRecord *pbi=(struct biRecord *)paddr->precord;
|
||
int index;
|
||
unsigned short *pfield = (unsigned short *)paddr->pfield;
|
||
|
||
|
||
index = dbGetFieldIndex(paddr);
|
||
if(index!=biRecordVAL) {
|
||
strcpy(pstring,"Illegal_Value");
|
||
} else if(*pfield==0) {
|
||
strncpy(pstring,pbi->znam,sizeof(pbi->znam));
|
||
pstring[sizeof(pbi->znam)] = 0;
|
||
} else if(*pfield==1) {
|
||
strncpy(pstring,pbi->onam,sizeof(pbi->onam));
|
||
pstring[sizeof(pbi->onam)] = 0;
|
||
} else {
|
||
strcpy(pstring,"Illegal_Value");
|
||
}
|
||
return(0);
|
||
}
|
||
|
||
static long get_enum_strs(paddr,pes)
|
||
struct dbAddr *paddr;
|
||
struct dbr_enumStrs *pes;
|
||
{
|
||
struct biRecord *pbi=(struct biRecord *)paddr->precord;
|
||
|
||
pes->no_str = 2;
|
||
memset(pes->strs,'\0',sizeof(pes->strs));
|
||
strncpy(pes->strs[0],pbi->znam,sizeof(pbi->znam));
|
||
if(*pbi->znam!=0) pes->no_str=1;
|
||
strncpy(pes->strs[1],pbi->onam,sizeof(pbi->onam));
|
||
if(*pbi->onam!=0) pes->no_str=2;
|
||
return(0);
|
||
}
|
||
|
||
static long put_enum_str(paddr,pstring)
|
||
struct dbAddr *paddr;
|
||
char *pstring;
|
||
{
|
||
struct biRecord *pbi=(struct biRecord *)paddr->precord;
|
||
|
||
if(strncmp(pstring,pbi->znam,sizeof(pbi->znam))==0) pbi->val = 0;
|
||
else if(strncmp(pstring,pbi->onam,sizeof(pbi->onam))==0) pbi->val = 1;
|
||
else return(S_db_badChoice);
|
||
pbi->udf=FALSE;
|
||
return(0);
|
||
}
|
||
|
||
|
||
static void alarm(pbi)
|
||
struct biRecord *pbi;
|
||
{
|
||
unsigned short val = pbi->val;
|
||
|
||
|
||
if(pbi->udf == TRUE){
|
||
recGblSetSevr(pbi,UDF_ALARM,INVALID_ALARM);
|
||
return;
|
||
}
|
||
|
||
if(val>1)return;
|
||
/* check for state alarm */
|
||
if (val == 0){
|
||
recGblSetSevr(pbi,STATE_ALARM,pbi->zsv);
|
||
}else{
|
||
recGblSetSevr(pbi,STATE_ALARM,pbi->osv);
|
||
}
|
||
|
||
/* check for cos alarm */
|
||
if(val == pbi->lalm) return;
|
||
recGblSetSevr(pbi,COS_ALARM,pbi->cosv);
|
||
pbi->lalm = val;
|
||
return;
|
||
}
|
||
|
||
static void monitor(pbi)
|
||
struct biRecord *pbi;
|
||
{
|
||
unsigned short monitor_mask;
|
||
|
||
monitor_mask = recGblResetAlarms(pbi);
|
||
/* check for value change */
|
||
if (pbi->mlst != pbi->val){
|
||
/* post events for value change and archive change */
|
||
monitor_mask |= (DBE_VALUE | DBE_LOG);
|
||
/* update last value monitored */
|
||
pbi->mlst = pbi->val;
|
||
}
|
||
|
||
/* send out monitors connected to the value field */
|
||
if (monitor_mask){
|
||
db_post_events(pbi,&pbi->val,monitor_mask);
|
||
}
|
||
if(pbi->oraw!=pbi->rval) {
|
||
db_post_events(pbi,&pbi->rval,
|
||
monitor_mask|DBE_VALUE|DBE_LOG);
|
||
pbi->oraw = pbi->rval;
|
||
}
|
||
return;
|
||
}
|
||
|
||
static long readValue(pbi)
|
||
struct biRecord *pbi;
|
||
{
|
||
long status;
|
||
struct bidset *pdset = (struct bidset *) (pbi->dset);
|
||
|
||
if (pbi->pact == TRUE){
|
||
status=(*pdset->read_bi)(pbi);
|
||
return(status);
|
||
}
|
||
|
||
status = dbGetLink(&(pbi->siml),DBR_USHORT, &(pbi->simm),0,0);
|
||
if (status)
|
||
return(status);
|
||
|
||
if (pbi->simm == NO){
|
||
status=(*pdset->read_bi)(pbi);
|
||
return(status);
|
||
}
|
||
if (pbi->simm == YES){
|
||
status=dbGetLink(&(pbi->siol),DBR_USHORT,&(pbi->sval),0,0);
|
||
if (status==0){
|
||
pbi->val=pbi->sval;
|
||
pbi->udf=FALSE;
|
||
}
|
||
status=2; /* dont convert */
|
||
} else {
|
||
status=-1;
|
||
recGblSetSevr(pbi,SOFT_ALARM,INVALID_ALARM);
|
||
return(status);
|
||
}
|
||
recGblSetSevr(pbi,SIMM_ALARM,pbi->sims);
|
||
|
||
return(status);
|
||
}
|