351 lines
9.5 KiB
C
351 lines
9.5 KiB
C
/* recMbboDirect.c */
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/* share/src/rec @(#)recMbboDirect.c 1.2 1/4/94 */
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/* recMbboDirect.c - Record Support for mbboDirect records */
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/*
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* Original Author: Bob Dalesio
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* Current Author: Matthew Needes
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* Date: 10-06-93
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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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* (modifications to mbbo apply, see mbbo record)
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* 1. mcn "Created" by borrowing mbbo record code, and modifying it.
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*/
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#include <vxWorks.h>
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#include <types.h>
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#include <stdioLib.h>
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#include <lstLib.h>
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#include <string.h>
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#include <alarm.h>
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#include <dbDefs.h>
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#include <dbAccess.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 <mbboDirectRecord.h>
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#undef GEN_SIZE_OFFSET
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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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static long special();
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static long get_value();
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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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#define get_precision NULL
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#define get_enum_str NULL
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#define get_enum_strs NULL
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#define put_enum_str NULL
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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 mbboDirectRSET={
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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 mbbodset { /* multi bit 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_mbbo; /*returns: (0,2)=>(success,success no convert)*/
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};
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static void convert();
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static void monitor();
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static long writeValue();
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#define NUM_BITS 16
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static long init_record(pmbboDirect,pass)
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struct mbboDirectRecord *pmbboDirect;
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int pass;
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{
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struct mbbodset *pdset;
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long status = 0;
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int i;
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if (pass==0) return(0);
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/* mbbo.siml must be a CONSTANT or a PV_LINK or a DB_LINK */
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switch (pmbboDirect->siml.type) {
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case (CONSTANT) :
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recGblInitConstantLink(&pmbboDirect->siml,DBF_USHORT,&pmbboDirect->simm);
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break;
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case (PV_LINK) :
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case (DB_LINK) :
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break;
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default :
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recGblRecordError(S_db_badField,(void *)pmbboDirect,
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"mbboDirect: init_record Illegal SIML field");
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return(S_db_badField);
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}
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if(!(pdset = (struct mbbodset *)(pmbboDirect->dset))) {
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recGblRecordError(S_dev_noDSET,(void *)pmbboDirect,"mbboDirect: init_record");
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return(S_dev_noDSET);
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}
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/* must have write_mbbo function defined */
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if( (pdset->number < 5) || (pdset->write_mbbo == NULL) ) {
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recGblRecordError(S_dev_missingSup,(void *)pmbboDirect,"mbboDirect: init_record");
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return(S_dev_missingSup);
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}
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if (pmbboDirect->dol.type == CONSTANT){
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recGblInitConstantLink(&pmbboDirect->dol,DBF_USHORT,&pmbboDirect->val);
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}
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/* initialize mask*/
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pmbboDirect->mask = 0;
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for (i=0; i<pmbboDirect->nobt; i++) {
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pmbboDirect->mask <<= 1; /* shift left 1 bit*/
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pmbboDirect->mask |= 1; /* set low order bit*/
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}
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if(pdset->init_record) {
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unsigned long rval;
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status=(*pdset->init_record)(pmbboDirect);
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/* init_record might set status */
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if(status==0){
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rval = pmbboDirect->rval;
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if(pmbboDirect->shft>0) rval >>= pmbboDirect->shft;
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pmbboDirect->val = (unsigned short)rval;
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} else if (status == 2) status = 0;
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}
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return(status);
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}
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static long process(pmbboDirect)
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struct mbboDirectRecord *pmbboDirect;
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{
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struct mbbodset *pdset = (struct mbbodset *)(pmbboDirect->dset);
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long status=0;
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unsigned char pact=pmbboDirect->pact;
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if( (pdset==NULL) || (pdset->write_mbbo==NULL) ) {
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pmbboDirect->pact=TRUE;
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recGblRecordError(S_dev_missingSup,(void *)pmbboDirect,"write_mbbo");
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return(S_dev_missingSup);
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}
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if (!pmbboDirect->pact) {
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if(pmbboDirect->dol.type==DB_LINK && pmbboDirect->omsl==CLOSED_LOOP){
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long status;
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unsigned short val;
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pmbboDirect->pact = TRUE;
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status = dbGetLink(&pmbboDirect->dol,DBR_USHORT,&val,0,0);
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pmbboDirect->pact = FALSE;
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if(status==0) {
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pmbboDirect->val= val;
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}
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}
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/* convert val to rval */
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convert(pmbboDirect);
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}
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status=writeValue(pmbboDirect);
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/* check if device support set pact */
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if ( !pact && pmbboDirect->pact ) return(0);
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pmbboDirect->pact = TRUE;
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recGblGetTimeStamp(pmbboDirect);
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/* check event list */
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monitor(pmbboDirect);
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/* process the forward scan link record */
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recGblFwdLink(pmbboDirect);
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pmbboDirect->pact=FALSE;
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return(status);
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}
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static long special(paddr,after)
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struct dbAddr *paddr;
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int after;
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{
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struct mbboDirectRecord *pmbboDirect = (struct mbboDirectRecord *)(paddr->precord);
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int special_type = paddr->special, offset = 1, i;
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char *bit;
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if(!after) return(0);
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switch(special_type) {
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case(SPC_MOD):
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/*
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* Set a bit in VAL corresponding to the bit changed
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* offset equals the offset in bit array. Only do
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* this if in supervisory mode.
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*/
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if (pmbboDirect->omsl == CLOSED_LOOP)
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return(0);
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offset = 1 << (((int)paddr->pfield) - ((int) &(pmbboDirect->b0)));
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if (*((char *)paddr->pfield)) {
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/* set field */
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pmbboDirect->val |= offset;
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}
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else {
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/* zero field */
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pmbboDirect->val &= ~offset;
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}
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convert(pmbboDirect);
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return(0);
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case(SPC_RESET):
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/*
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* If OMSL changes from closed_loop to supervisory,
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* reload value field with B0 - B15
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*/
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bit = &(pmbboDirect->b0);
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if (pmbboDirect->omsl == SUPERVISORY) {
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for (i=0; i<NUM_BITS; i++, offset = offset << 1, bit++) {
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if (*bit)
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pmbboDirect->val |= offset;
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else
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pmbboDirect->val &= ~offset;
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}
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}
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return(0);
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default:
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recGblDbaddrError(S_db_badChoice,paddr,"mbboDirect: special");
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return(S_db_badChoice);
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}
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}
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static long get_value(pmbboDirect,pvdes)
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struct mbboDirectRecord *pmbboDirect;
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struct valueDes *pvdes;
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{
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pvdes->field_type = DBF_USHORT;
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pvdes->no_elements=1;
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(unsigned short *)(pvdes->pvalue) = &pmbboDirect->val;
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return(0);
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}
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static void monitor(pmbboDirect)
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struct mbboDirectRecord *pmbboDirect;
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{
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unsigned short monitor_mask;
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monitor_mask = recGblResetAlarms(pmbboDirect);
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monitor_mask |= (DBE_LOG|DBE_VALUE);
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if(monitor_mask)
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db_post_events(pmbboDirect,pmbboDirect->val,monitor_mask);
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/* check for value change */
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if (pmbboDirect->mlst != pmbboDirect->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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pmbboDirect->mlst = pmbboDirect->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(pmbboDirect,&pmbboDirect->val,monitor_mask);
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}
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if(pmbboDirect->oraw!=pmbboDirect->rval) {
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db_post_events(pmbboDirect,&pmbboDirect->rval,
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monitor_mask|DBE_VALUE|DBE_LOG);
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pmbboDirect->oraw = pmbboDirect->rval;
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}
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if(pmbboDirect->orbv!=pmbboDirect->rbv) {
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db_post_events(pmbboDirect,&pmbboDirect->rbv,
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monitor_mask|DBE_VALUE|DBE_LOG);
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pmbboDirect->orbv = pmbboDirect->rbv;
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}
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return;
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}
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static void convert(pmbboDirect)
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struct mbboDirectRecord *pmbboDirect;
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{
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/* convert val to rval */
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pmbboDirect->rval = (unsigned long)(pmbboDirect->val);
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if(pmbboDirect->shft>0)
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pmbboDirect->rval <<= pmbboDirect->shft;
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return;
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}
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static long writeValue(pmbboDirect)
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struct mbboDirectRecord *pmbboDirect;
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{
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long status;
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struct mbbodset *pdset = (struct mbbodset *) (pmbboDirect->dset);
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if (pmbboDirect->pact == TRUE){
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status=(*pdset->write_mbbo)(pmbboDirect);
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return(status);
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}
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status=dbGetLink(&(pmbboDirect->siml),
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DBR_ENUM,&(pmbboDirect->simm),0,0);
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if (status)
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return(status);
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if (pmbboDirect->simm == NO){
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status=(*pdset->write_mbbo)(pmbboDirect);
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return(status);
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}
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if (pmbboDirect->simm == YES){
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status=dbPutLink(&pmbboDirect->siol,DBR_USHORT,
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&pmbboDirect->val,1);
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} else {
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status=-1;
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recGblSetSevr(pmbboDirect,SOFT_ALARM,INVALID_ALARM);
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return(status);
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}
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recGblSetSevr(pmbboDirect,SIMM_ALARM,pmbboDirect->sims);
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return(status);
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}
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