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057dc7e2b280714b096329b36b0f07f431884794
pcas/src/rec/mbboDirectRecord.c
T
Janet B. Anderson 93b0bf478d Updated license comments.
2002-07-12 21:35:43 +00:00

362 lines
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/*************************************************************************\
* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
* National Laboratory.
* Copyright (c) 2002 The Regents of the University of California, as
* Operator of Los Alamos National Laboratory.
* EPICS BASE Versions 3.13.7
* and higher are distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/
/* recMbboDirect.c */
/* share/src/rec @(#)recMbboDirect.c 1.2 1/4/94 */
/* recMbboDirect.c - Record Support for mbboDirect records */
/*
* Original Author: Bob Dalesio
* Current Author: Matthew Needes
* Date: 10-06-93
*/
#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 "dbEvent.h"
#include "dbFldTypes.h"
#include "devSup.h"
#include "errMdef.h"
#include "recSup.h"
#include "recGbl.h"
#include "special.h"
#define GEN_SIZE_OFFSET
#include "mbboDirectRecord.h"
#undef GEN_SIZE_OFFSET
#include "menuOmsl.h"
#include "menuIvoa.h"
/* Create RSET - Record Support Entry Table*/
#define report NULL
#define initialize NULL
static long init_record();
static long process();
static long special();
#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
#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
struct 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 };
struct mbbodset { /* multi bit binary output dset */
long number;
DEVSUPFUN dev_report;
DEVSUPFUN init;
DEVSUPFUN init_record; /*returns: (0,2)=>(success,success no convert)*/
DEVSUPFUN get_ioint_info;
DEVSUPFUN write_mbbo; /*returns: (0,2)=>(success,success no convert)*/
};
static void convert();
static void monitor();
static long writeValue();
#define NUM_BITS 16
static long init_record(pmbboDirect,pass)
struct mbboDirectRecord *pmbboDirect;
int pass;
{
struct mbbodset *pdset;
long status = 0;
int i;
if (pass==0) return(0);
/* mbboDirect.siml must be a CONSTANT or a PV_LINK or a DB_LINK */
if (pmbboDirect->siml.type == CONSTANT) {
recGblInitConstantLink(&pmbboDirect->siml,DBF_USHORT,&pmbboDirect->simm);
}
if(!(pdset = (struct mbbodset *)(pmbboDirect->dset))) {
recGblRecordError(S_dev_noDSET,(void *)pmbboDirect,"mbboDirect: init_record");
return(S_dev_noDSET);
}
/* must have write_mbbo function defined */
if( (pdset->number < 5) || (pdset->write_mbbo == NULL) ) {
recGblRecordError(S_dev_missingSup,(void *)pmbboDirect,"mbboDirect: init_record");
return(S_dev_missingSup);
}
if (pmbboDirect->dol.type == CONSTANT){
if(recGblInitConstantLink(&pmbboDirect->dol,DBF_USHORT,&pmbboDirect->val))
pmbboDirect->udf = FALSE;
}
/* initialize mask*/
pmbboDirect->mask = 0;
for (i=0; i<pmbboDirect->nobt; i++) {
pmbboDirect->mask <<= 1; /* shift left 1 bit*/
pmbboDirect->mask |= 1; /* set low order bit*/
}
if(pdset->init_record) {
unsigned long rval;
status=(*pdset->init_record)(pmbboDirect);
/* init_record might set status */
if(status==0){
rval = pmbboDirect->rval;
if(pmbboDirect->shft>0) rval >>= pmbboDirect->shft;
pmbboDirect->val = (unsigned short)rval;
pmbboDirect->udf = FALSE;
} else if (status == 2) status = 0;
}
return(status);
}
static long process(pmbboDirect)
struct mbboDirectRecord *pmbboDirect;
{
struct mbbodset *pdset = (struct mbbodset *)(pmbboDirect->dset);
long status=0;
unsigned char pact=pmbboDirect->pact;
if( (pdset==NULL) || (pdset->write_mbbo==NULL) ) {
pmbboDirect->pact=TRUE;
recGblRecordError(S_dev_missingSup,(void *)pmbboDirect,"write_mbbo");
return(S_dev_missingSup);
}
if (!pmbboDirect->pact) {
if(pmbboDirect->dol.type!=CONSTANT && pmbboDirect->omsl==menuOmslclosed_loop){
long status;
unsigned short val;
status = dbGetLink(&pmbboDirect->dol,DBR_USHORT,&val,0,0);
if(status==0) {
pmbboDirect->val= val;
pmbboDirect->udf= FALSE;
}
else {
recGblSetSevr(pmbboDirect,LINK_ALARM,INVALID_ALARM);
goto CONTINUE;
}
}
if(pmbboDirect->udf) {
recGblSetSevr(pmbboDirect,UDF_ALARM,INVALID_ALARM);
goto CONTINUE;
}
if(pmbboDirect->nsev < INVALID_ALARM
&& pmbboDirect->sevr == INVALID_ALARM
&& pmbboDirect->omsl == menuOmslsupervisory) {
/* reload value field with B0 - B15 */
int offset = 1, i;
unsigned char *bit = &(pmbboDirect->b0);
for (i=0; i<NUM_BITS; i++, offset = offset << 1, bit++) {
if (*bit)
pmbboDirect->val |= offset;
else
pmbboDirect->val &= ~offset;
}
}
/* convert val to rval */
convert(pmbboDirect);
}
CONTINUE:
if (pmbboDirect->nsev < INVALID_ALARM )
status=writeValue(pmbboDirect); /* write the new value */
else
switch (pmbboDirect->ivoa) {
case (menuIvoaContinue_normally) :
status=writeValue(pmbboDirect); /* write the new value */
break;
case (menuIvoaDon_t_drive_outputs) :
break;
case (menuIvoaSet_output_to_IVOV) :
if (pmbboDirect->pact == FALSE){
pmbboDirect->val=pmbboDirect->ivov;
convert(pmbboDirect);
}
status=writeValue(pmbboDirect); /* write the new value */
break;
default :
status=-1;
recGblRecordError(S_db_badField,(void *)pmbboDirect,
"mbboDirect: process Illegal IVOA field");
}
/* check if device support set pact */
if ( !pact && pmbboDirect->pact ) return(0);
pmbboDirect->pact = TRUE;
recGblGetTimeStamp(pmbboDirect);
/* check event list */
monitor(pmbboDirect);
/* process the forward scan link record */
recGblFwdLink(pmbboDirect);
pmbboDirect->pact=FALSE;
return(status);
}
static long special(paddr,after)
struct dbAddr *paddr;
int after;
{
struct mbboDirectRecord *pmbboDirect = (struct mbboDirectRecord *)(paddr->precord);
int special_type = paddr->special, offset = 1, i;
unsigned char *bit;
if(!after) return(0);
switch(special_type) {
case(SPC_MOD):
/*
* Set a bit in VAL corresponding to the bit changed
* offset equals the offset in bit array. Only do
* this if in supervisory mode.
*/
if (pmbboDirect->omsl == menuOmslclosed_loop)
return(0);
offset = 1 << (((int)paddr->pfield) - ((int) &(pmbboDirect->b0)));
if (*((char *)paddr->pfield)) {
/* set field */
pmbboDirect->val |= offset;
}
else {
/* zero field */
pmbboDirect->val &= ~offset;
}
pmbboDirect->udf = FALSE;
convert(pmbboDirect);
return(0);
case(SPC_RESET):
/*
* If OMSL changes from closed_loop to supervisory,
* reload value field with B0 - B15
*/
bit = &(pmbboDirect->b0);
if (pmbboDirect->omsl == menuOmslsupervisory) {
for (i=0; i<NUM_BITS; i++, offset = offset << 1, bit++) {
if (*bit)
pmbboDirect->val |= offset;
else
pmbboDirect->val &= ~offset;
}
}
pmbboDirect->udf = FALSE;
return(0);
default:
recGblDbaddrError(S_db_badChoice,paddr,"mbboDirect: special");
return(S_db_badChoice);
}
}
static void monitor(pmbboDirect)
struct mbboDirectRecord *pmbboDirect;
{
unsigned short monitor_mask;
monitor_mask = recGblResetAlarms(pmbboDirect);
/* check for value change */
if (pmbboDirect->mlst != pmbboDirect->val){
/* post events for value change and archive change */
monitor_mask |= (DBE_VALUE | DBE_LOG);
/* update last value monitored */
pmbboDirect->mlst = pmbboDirect->val;
}
/* send out monitors connected to the value field */
if (monitor_mask){
db_post_events(pmbboDirect,&pmbboDirect->val,monitor_mask);
}
if(pmbboDirect->oraw!=pmbboDirect->rval) {
db_post_events(pmbboDirect,&pmbboDirect->rval,
monitor_mask|DBE_VALUE|DBE_LOG);
pmbboDirect->oraw = pmbboDirect->rval;
}
if(pmbboDirect->orbv!=pmbboDirect->rbv) {
db_post_events(pmbboDirect,&pmbboDirect->rbv,
monitor_mask|DBE_VALUE|DBE_LOG);
pmbboDirect->orbv = pmbboDirect->rbv;
}
return;
}
static void convert(pmbboDirect)
struct mbboDirectRecord *pmbboDirect;
{
/* convert val to rval */
pmbboDirect->rval = (unsigned long)(pmbboDirect->val);
if(pmbboDirect->shft>0)
pmbboDirect->rval <<= pmbboDirect->shft;
return;
}
static long writeValue(pmbboDirect)
struct mbboDirectRecord *pmbboDirect;
{
long status;
struct mbbodset *pdset = (struct mbbodset *) (pmbboDirect->dset);
if (pmbboDirect->pact == TRUE){
status=(*pdset->write_mbbo)(pmbboDirect);
return(status);
}
status=dbGetLink(&(pmbboDirect->siml),
DBR_ENUM,&(pmbboDirect->simm),0,0);
if (status)
return(status);
if (pmbboDirect->simm == NO){
status=(*pdset->write_mbbo)(pmbboDirect);
return(status);
}
if (pmbboDirect->simm == YES){
status=dbPutLink(&pmbboDirect->siol,DBR_USHORT,
&pmbboDirect->val,1);
} else {
status=-1;
recGblSetSevr(pmbboDirect,SOFT_ALARM,INVALID_ALARM);
return(status);
}
recGblSetSevr(pmbboDirect,SIMM_ALARM,pmbboDirect->sims);
return(status);
}
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