418 lines
11 KiB
C
418 lines
11 KiB
C
/*************************************************************************\
|
||
* Copyright (c) 2009 Helmholtz-Zentrum Berlin fuer Materialien und Energie.
|
||
* Copyright (c) 2012 UChicago Argonne LLC, as Operator of Argonne
|
||
* National Laboratory.
|
||
* Copyright (c) 2002 The Regents of the University of California, as
|
||
* Operator of Los Alamos National Laboratory.
|
||
* SPDX-License-Identifier: EPICS
|
||
* EPICS BASE is distributed subject to a Software License Agreement found
|
||
* in file LICENSE that is included with this distribution.
|
||
\*************************************************************************/
|
||
|
||
/*
|
||
* Original Author: Bob Dalesio
|
||
* Date: 5-9-88
|
||
*/
|
||
|
||
#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 "callback.h"
|
||
#include "dbAccess.h"
|
||
#include "dbEvent.h"
|
||
#include "dbFldTypes.h"
|
||
#include "devSup.h"
|
||
#include "epicsMath.h"
|
||
#include "errMdef.h"
|
||
#include "menuSimm.h"
|
||
#include "recSup.h"
|
||
#include "recGbl.h"
|
||
#include "special.h"
|
||
|
||
#define GEN_SIZE_OFFSET
|
||
#include "mbbiRecord.h"
|
||
#undef GEN_SIZE_OFFSET
|
||
#include "epicsExport.h"
|
||
|
||
/* Hysteresis for alarm filtering: 1-1/e */
|
||
#define THRESHOLD 0.6321
|
||
|
||
/* Create RSET - Record Support Entry Table*/
|
||
#define report NULL
|
||
#define initialize NULL
|
||
static long init_record(struct dbCommon *, int);
|
||
static long process(struct dbCommon *);
|
||
static long special(DBADDR *, int);
|
||
#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(const DBADDR *, char *);
|
||
static long get_enum_strs(const DBADDR *, struct dbr_enumStrs *);
|
||
static long put_enum_str(const DBADDR *, const char *);
|
||
#define get_graphic_double NULL
|
||
#define get_control_double NULL
|
||
#define get_alarm_double NULL
|
||
|
||
rset mbbiRSET = {
|
||
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
|
||
};
|
||
epicsExportAddress(rset,mbbiRSET);
|
||
|
||
static void checkAlarms(mbbiRecord *, epicsTimeStamp *);
|
||
static void monitor(mbbiRecord *);
|
||
static long readValue(mbbiRecord *);
|
||
|
||
static void init_common(mbbiRecord *prec)
|
||
{
|
||
epicsUInt32 *pstate_values = &prec->zrvl;
|
||
char *pstate_string = prec->zrst;
|
||
int i;
|
||
|
||
/* Check if any states are defined */
|
||
for (i = 0; i < 16; i++, pstate_string += sizeof(prec->zrst)) {
|
||
if ((pstate_values[i] != 0) || (*pstate_string != '\0')) {
|
||
prec->sdef = TRUE;
|
||
return;
|
||
}
|
||
}
|
||
prec->sdef = FALSE;
|
||
}
|
||
|
||
static long init_record(struct dbCommon *pcommon, int pass)
|
||
{
|
||
struct mbbiRecord *prec = (struct mbbiRecord *)pcommon;
|
||
mbbidset *pdset = (mbbidset *) prec->dset;
|
||
long status = 0;
|
||
|
||
if (pass == 0) return 0;
|
||
|
||
if (!pdset) {
|
||
recGblRecordError(S_dev_noDSET, prec, "mbbi: init_record");
|
||
return S_dev_noDSET;
|
||
}
|
||
|
||
if ((pdset->common.number < 5) || (pdset->read_mbbi == NULL)) {
|
||
recGblRecordError(S_dev_missingSup, prec, "mbbi: init_record");
|
||
return S_dev_missingSup;
|
||
}
|
||
|
||
recGblInitSimm(pcommon, &prec->sscn, &prec->oldsimm, &prec->simm, &prec->siml);
|
||
recGblInitConstantLink(&prec->siol, DBF_USHORT, &prec->sval);
|
||
|
||
/* Initialize MASK if the user set NOBT instead */
|
||
if (prec->mask == 0 && prec->nobt <= 32)
|
||
prec->mask = ((epicsUInt64) 1u << prec->nobt) - 1;
|
||
|
||
if (pdset->common.init_record)
|
||
status = pdset->common.init_record(pcommon);
|
||
|
||
init_common(prec);
|
||
|
||
prec->mlst = prec->val;
|
||
prec->lalm = prec->val;
|
||
prec->oraw = prec->rval;
|
||
return status;
|
||
}
|
||
|
||
static long process(struct dbCommon *pcommon)
|
||
{
|
||
struct mbbiRecord *prec = (struct mbbiRecord *)pcommon;
|
||
mbbidset *pdset = (mbbidset *) prec->dset;
|
||
long status;
|
||
int pact = prec->pact;
|
||
epicsTimeStamp timeLast;
|
||
|
||
if ((pdset == NULL) || (pdset->read_mbbi == NULL)) {
|
||
prec->pact = TRUE;
|
||
recGblRecordError(S_dev_missingSup, prec, "read_mbbi");
|
||
return S_dev_missingSup;
|
||
}
|
||
|
||
timeLast = prec->time;
|
||
|
||
status = readValue(prec);
|
||
|
||
/* Done if device support set PACT */
|
||
if (!pact && prec->pact)
|
||
return 0;
|
||
|
||
prec->pact = TRUE;
|
||
recGblGetTimeStampSimm(prec, prec->simm, &prec->siol);
|
||
|
||
if (status == 0) {
|
||
/* Convert RVAL to VAL */
|
||
epicsUInt32 *pstate_values;
|
||
short i;
|
||
epicsUInt32 rval = prec->rval;
|
||
|
||
prec->udf = FALSE;
|
||
if (prec->shft > 0)
|
||
rval >>= prec->shft;
|
||
|
||
if (prec->sdef) {
|
||
pstate_values = &(prec->zrvl);
|
||
prec->val = 65535; /* Initialize to unknown state*/
|
||
for (i = 0; i < 16; i++) {
|
||
if (*pstate_values == rval) {
|
||
prec->val = i;
|
||
break;
|
||
}
|
||
pstate_values++;
|
||
}
|
||
}
|
||
else /* No states defined, set VAL = RVAL */
|
||
prec->val = rval;
|
||
}
|
||
else if (status == 2)
|
||
status = 0;
|
||
|
||
checkAlarms(prec, &timeLast);
|
||
monitor(prec);
|
||
|
||
/* Wrap up */
|
||
recGblFwdLink(prec);
|
||
prec->pact=FALSE;
|
||
return status;
|
||
}
|
||
|
||
static long special(DBADDR *paddr, int after)
|
||
{
|
||
mbbiRecord *prec = (mbbiRecord *) paddr->precord;
|
||
int fieldIndex = dbGetFieldIndex(paddr);
|
||
|
||
switch (paddr->special) {
|
||
case SPC_MOD:
|
||
if (fieldIndex == mbbiRecordSIMM) {
|
||
if (!after)
|
||
recGblSaveSimm(prec->sscn, &prec->oldsimm, prec->simm);
|
||
else
|
||
recGblCheckSimm((dbCommon *)prec, &prec->sscn, prec->oldsimm, prec->simm);
|
||
return 0;
|
||
}
|
||
|
||
if (!after)
|
||
return 0;
|
||
init_common(prec);
|
||
/* Note: ZRVL..FFVL are also SPC_MOD */
|
||
if (fieldIndex >= mbbiRecordZRST && fieldIndex <= mbbiRecordFFST
|
||
&& prec->val == fieldIndex - mbbiRecordZRST) {
|
||
db_post_events(prec, &prec->val, DBE_VALUE | DBE_LOG);
|
||
}
|
||
return 0;
|
||
|
||
default:
|
||
recGblDbaddrError(S_db_badChoice, paddr, "mbbi: special");
|
||
return S_db_badChoice;
|
||
}
|
||
}
|
||
|
||
static long get_enum_str(const DBADDR *paddr, char *pstring)
|
||
{
|
||
mbbiRecord *prec = (mbbiRecord *) paddr->precord;
|
||
int index;
|
||
unsigned short *pfield = paddr->pfield;
|
||
epicsEnum16 val = *pfield;
|
||
|
||
index = dbGetFieldIndex(paddr);
|
||
if (index != mbbiRecordVAL) {
|
||
strcpy(pstring, "Illegal_Value");
|
||
}
|
||
else if (val <= 15) {
|
||
char *pstate = prec->zrst + val * sizeof(prec->zrst);
|
||
|
||
strncpy(pstring, pstate, sizeof(prec->zrst));
|
||
}
|
||
else {
|
||
strcpy(pstring, "Illegal Value");
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static long get_enum_strs(const DBADDR *paddr, struct dbr_enumStrs *pes)
|
||
{
|
||
mbbiRecord *prec = (mbbiRecord *) paddr->precord;
|
||
char *pstate = prec->zrst;
|
||
int i;
|
||
short states = 0;
|
||
|
||
memset(pes->strs, '\0', sizeof(pes->strs));
|
||
for (i = 0; i < 16; i++, pstate += sizeof(prec->zrst) ) {
|
||
strncpy(pes->strs[i], pstate, sizeof(prec->zrst));
|
||
if (*pstate!=0) states = i+1;
|
||
}
|
||
pes->no_str = states;
|
||
return 0;
|
||
}
|
||
|
||
static long put_enum_str(const DBADDR *paddr, const char *pstring)
|
||
{
|
||
mbbiRecord *prec = (mbbiRecord *) paddr->precord;
|
||
char *pstate;
|
||
short i;
|
||
|
||
if (prec->sdef) {
|
||
pstate = prec->zrst;
|
||
for (i = 0; i < 16; i++) {
|
||
if (strncmp(pstate, pstring, sizeof(prec->zrst)) == 0) {
|
||
prec->val = i;
|
||
prec->udf = FALSE;
|
||
return 0;
|
||
}
|
||
pstate += sizeof(prec->zrst);
|
||
}
|
||
}
|
||
return S_db_badChoice;
|
||
}
|
||
|
||
static void checkAlarms(mbbiRecord *prec, epicsTimeStamp *timeLast)
|
||
{
|
||
double aftc, afvl;
|
||
unsigned short alarm;
|
||
epicsEnum16 asev;
|
||
epicsEnum16 val = prec->val;
|
||
|
||
/* Check for UDF alarm */
|
||
if (prec->udf) {
|
||
recGblSetSevr(prec, UDF_ALARM, prec->udfs);
|
||
prec->afvl = 0;
|
||
return;
|
||
}
|
||
|
||
/* Check for STATE alarm */
|
||
if (val > 15) {
|
||
/* Unknown state */
|
||
alarm = prec->unsv;
|
||
}
|
||
else {
|
||
/* State has a severity field */
|
||
epicsEnum16 *severities = &prec->zrsv;
|
||
|
||
alarm = severities[prec->val];
|
||
}
|
||
|
||
aftc = prec->aftc;
|
||
afvl = 0;
|
||
|
||
if (aftc > 0) {
|
||
afvl = prec->afvl;
|
||
if (afvl == 0) {
|
||
afvl = (double) alarm;
|
||
}
|
||
else {
|
||
double t = epicsTimeDiffInSeconds(&prec->time, timeLast);
|
||
double alpha = aftc / (t + aftc);
|
||
|
||
afvl = alpha * afvl +
|
||
((afvl > 0) ? (1.0 - alpha) : (alpha - 1.0)) * alarm;
|
||
if (afvl - floor(afvl) > THRESHOLD)
|
||
afvl = -afvl;
|
||
|
||
alarm = abs((int)floor(afvl));
|
||
}
|
||
}
|
||
|
||
asev = alarm;
|
||
recGblSetSevr(prec, STATE_ALARM, asev);
|
||
|
||
/* Check for COS alarm */
|
||
if (val == prec->lalm ||
|
||
recGblSetSevr(prec, COS_ALARM, prec->cosv))
|
||
return;
|
||
|
||
prec->lalm = val;
|
||
}
|
||
|
||
static void monitor(mbbiRecord *prec)
|
||
{
|
||
epicsUInt16 events = recGblResetAlarms(prec);
|
||
|
||
if (prec->mlst != prec->val) {
|
||
events |= DBE_VALUE | DBE_LOG;
|
||
prec->mlst = prec->val;
|
||
}
|
||
|
||
if (events)
|
||
db_post_events(prec, &prec->val, events);
|
||
|
||
if (prec->oraw != prec->rval) {
|
||
db_post_events(prec, &prec->rval, events | DBE_VALUE | DBE_LOG);
|
||
prec->oraw = prec->rval;
|
||
}
|
||
}
|
||
|
||
static long readValue(mbbiRecord *prec)
|
||
{
|
||
mbbidset *pdset = (mbbidset *) prec->dset;
|
||
long status = 0;
|
||
|
||
if (!prec->pact) {
|
||
status = recGblGetSimm((dbCommon *)prec, &prec->sscn, &prec->oldsimm, &prec->simm, &prec->siml);
|
||
if (status) return status;
|
||
}
|
||
|
||
switch (prec->simm) {
|
||
case menuSimmNO:
|
||
status = pdset->read_mbbi(prec);
|
||
break;
|
||
|
||
case menuSimmYES:
|
||
case menuSimmRAW: {
|
||
recGblSetSevr(prec, SIMM_ALARM, prec->sims);
|
||
if (prec->pact || (prec->sdly < 0.)) {
|
||
status = dbGetLink(&prec->siol, DBR_ULONG, &prec->sval, 0, 0);
|
||
if (status == 0) {
|
||
if (prec->simm == menuSimmYES) {
|
||
prec->val = prec->sval;
|
||
status = 2; /* Don't convert */
|
||
} else {
|
||
prec->rval = prec->sval;
|
||
}
|
||
prec->udf = FALSE;
|
||
}
|
||
prec->pact = FALSE;
|
||
} else { /* !prec->pact && delay >= 0. */
|
||
epicsCallback *pvt = prec->simpvt;
|
||
if (!pvt) {
|
||
pvt = calloc(1, sizeof(epicsCallback)); /* very lazy allocation of callback structure */
|
||
prec->simpvt = pvt;
|
||
}
|
||
if (pvt) callbackRequestProcessCallbackDelayed(pvt, prec->prio, prec, prec->sdly);
|
||
prec->pact = TRUE;
|
||
}
|
||
break;
|
||
}
|
||
|
||
default:
|
||
recGblSetSevr(prec, SOFT_ALARM, INVALID_ALARM);
|
||
status = -1;
|
||
}
|
||
|
||
return status;
|
||
}
|