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3c99391d9398531df1c0401d3ba20e4df99b3b13
epics-base/modules/database/src/std/rec/mbboDirectRecord.c
Andrew Johnson 3c99391d93 Added SPDX License ID to all EPICS-original source files 
In some cases the license-identification header was missing,
so I added that as well. Replaced the remaining headers that
specifically identified "Versions 3.13.7 and higher".

Makefiles and the build system were deliberately excluded.
2020-08-03 11:53:01 -05:00

387 lines
10 KiB
C
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/*************************************************************************\
* 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.
\*************************************************************************/
/* mbboDirectRecord.c - Record Support for mbboDirect records */
/*
* Original Author: Bob Dalesio
* Date: 10-06-93
*/
#include <stddef.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include "dbDefs.h"
#include "errlog.h"
#include "alarm.h"
#include "callback.h"
#include "dbAccess.h"
#include "dbEvent.h"
#include "dbFldTypes.h"
#include "devSup.h"
#include "errMdef.h"
#include "recSup.h"
#include "recGbl.h"
#include "special.h"
#include "menuOmsl.h"
#include "menuIvoa.h"
#include "menuYesNo.h"
#define GEN_SIZE_OFFSET
#include "mbboDirectRecord.h"
#undef GEN_SIZE_OFFSET
#include "epicsExport.h"
/* 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
static long get_precision(const DBADDR *, long *);
#define get_enum_str NULL
#define get_enum_strs NULL
#define put_enum_str NULL
#define get_graphic_double NULL
#define get_control_double NULL
#define get_alarm_double NULL
rset mbboDirectRSET = {
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, mbboDirectRSET);
static void convert(mbboDirectRecord *);
static void monitor(mbboDirectRecord *);
static long writeValue(mbboDirectRecord *);
#define NUM_BITS 32
static long init_record(struct dbCommon *pcommon, int pass)
{
struct mbboDirectRecord *prec = (struct mbboDirectRecord *)pcommon;
mbbodirectdset *pdset = (mbbodirectdset *) prec->dset;
long status = 0;
if (pass == 0) return 0;
if (!pdset) {
recGblRecordError(S_dev_noDSET, prec, "mbboDirect: init_record");
return S_dev_noDSET;
}
if ((pdset->common.number < 5) || (pdset->write_mbbo == NULL)) {
recGblRecordError(S_dev_missingSup, prec, "mbboDirect: init_record");
return S_dev_missingSup;
}
recGblInitSimm(pcommon, &prec->sscn, &prec->oldsimm, &prec->simm, &prec->siml);
if (recGblInitConstantLink(&prec->dol, DBF_ULONG, &prec->val))
prec->udf = FALSE;
/* 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);
if (status == 0) {
/* Convert initial read-back */
epicsUInt32 rval = prec->rval;
if (prec->shft > 0)
rval >>= prec->shft;
prec->val = rval;
prec->udf = FALSE;
}
else if (status == 2)
status = 0;
}
if (!prec->udf &&
prec->omsl == menuOmslsupervisory) {
/* Set initial B0 - B1F from VAL */
epicsUInt32 val = prec->val;
epicsUInt8 *pBn = &prec->b0;
int i;
for (i = 0; i < NUM_BITS; i++) {
*pBn++ = !! (val & 1);
val >>= 1;
}
}
prec->mlst = prec->val;
prec->oraw = prec->rval;
prec->orbv = prec->rbv;
return status;
}
static long process(struct dbCommon *pcommon)
{
struct mbboDirectRecord *prec = (struct mbboDirectRecord *)pcommon;
mbbodirectdset *pdset = (mbbodirectdset *)(prec->dset);
long status = 0;
int pact = prec->pact;
if ((pdset == NULL) || (pdset->write_mbbo == NULL)) {
prec->pact = TRUE;
recGblRecordError(S_dev_missingSup, prec, "write_mbbo");
return S_dev_missingSup;
}
if (!pact) {
if (!dbLinkIsConstant(&prec->dol) &&
prec->omsl == menuOmslclosed_loop) {
epicsUInt32 val;
if (dbGetLink(&prec->dol, DBR_ULONG, &val, 0, 0)) {
recGblSetSevr(prec, LINK_ALARM, INVALID_ALARM);
goto CONTINUE;
}
prec->val = val;
}
else if (prec->omsl == menuOmslsupervisory) {
epicsUInt8 *pBn = &prec->b0;
epicsUInt32 val = 0;
epicsUInt32 bit = 1;
int i;
/* Construct VAL from B0 - B1F */
for (i = 0; i < NUM_BITS; i++, bit <<= 1)
if (*pBn++)
val |= bit;
prec->val = val;
}
else if (prec->udf) {
recGblSetSevr(prec, UDF_ALARM, prec->udfs);
goto CONTINUE;
}
prec->udf = FALSE;
/* Convert VAL to RVAL */
convert(prec);
}
CONTINUE:
if (prec->nsev < INVALID_ALARM)
status = writeValue(prec);
else {
switch (prec->ivoa) {
case menuIvoaSet_output_to_IVOV:
if (!prec->pact) {
prec->val = prec->ivov;
convert(prec);
}
/* No break, fall through... */
case menuIvoaContinue_normally:
status = writeValue(prec);
break;
case menuIvoaDon_t_drive_outputs:
break;
default:
status = -1;
recGblRecordError(S_db_badField, prec,
"mbboDirect: process Illegal IVOA field");
}
}
/* Done if device support set PACT */
if (!pact && prec->pact)
return 0;
prec->pact = TRUE;
recGblGetTimeStampSimm(prec, prec->simm, NULL);
monitor(prec);
/* Wrap up */
recGblFwdLink(prec);
prec->pact = FALSE;
return status;
}
static long special(DBADDR *paddr, int after)
{
mbboDirectRecord *prec = (mbboDirectRecord *) paddr->precord;
int fieldIndex = dbGetFieldIndex(paddr);
if (paddr->special == SPC_MOD && fieldIndex == mbboDirectRecordSIMM) {
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;
switch (paddr->special) {
case SPC_MOD: /* Bn field modified */
if (prec->omsl == menuOmslsupervisory) {
/* Adjust VAL corresponding to the bit changed */
epicsUInt8 *pBn = (epicsUInt8 *) paddr->pfield;
epicsUInt32 bit = 1 << (pBn - &prec->b0);
if (*pBn)
prec->val |= bit;
else
prec->val &= ~bit;
prec->udf = FALSE;
convert(prec);
}
break;
case SPC_RESET: /* OMSL field modified */
if (prec->omsl == menuOmslclosed_loop) {
/* Construct VAL from B0 - B1F */
epicsUInt8 *pBn = &prec->b0;
epicsUInt32 val = 0, bit = 1;
int i;
for (i = 0; i < NUM_BITS; i++, bit <<= 1)
if (*pBn++)
val |= bit;
prec->val = val;
}
else if (prec->omsl == menuOmslsupervisory) {
/* Set B0 - B1F from VAL and post monitors */
epicsUInt32 val = prec->val;
epicsUInt8 *pBn = &prec->b0;
int i;
for (i = 0; i < NUM_BITS; i++, pBn++, val >>= 1) {
epicsUInt8 oBn = *pBn;
*pBn = !! (val & 1);
if (oBn != *pBn)
db_post_events(prec, pBn, DBE_VALUE | DBE_LOG);
}
}
break;
default:
recGblDbaddrError(S_db_badChoice, paddr, "mbboDirect: special");
return S_db_badChoice;
}
prec->udf = FALSE;
return 0;
}
static long get_precision(const DBADDR *paddr,long *precision)
{
mbboDirectRecord *prec=(mbboDirectRecord *)paddr->precord;
if(dbGetFieldIndex(paddr)==mbboDirectRecordVAL)
*precision = prec->nobt;
else
recGblGetPrec(paddr,precision);
return 0;
}
static void monitor(mbboDirectRecord *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);
events |= DBE_VALUE | DBE_LOG;
if (prec->oraw != prec->rval) {
db_post_events(prec, &prec->rval, events);
prec->oraw = prec->rval;
}
if (prec->orbv != prec->rbv) {
db_post_events(prec, &prec->rbv, events);
prec->orbv = prec->rbv;
}
}
static void convert(mbboDirectRecord *prec)
{
/* Convert VAL to RVAL */
prec->rval = prec->val;
if (prec->shft > 0)
prec->rval <<= prec->shft;
}
static long writeValue(mbboDirectRecord *prec)
{
mbbodirectdset *pdset = (mbbodirectdset *) 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 menuYesNoNO:
status = pdset->write_mbbo(prec);
break;
case menuYesNoYES: {
recGblSetSevr(prec, SIMM_ALARM, prec->sims);
if (prec->pact || (prec->sdly < 0.)) {
status = dbPutLink(&prec->siol, DBR_ULONG, &prec->val, 1);
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;
}
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