/*************************************************************************\
* 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. 
\*************************************************************************/
/* devBiMpv910.c */
/* base/src/dev $Id$ */

/* devBiMpv910.c - Device Support Routines for  Burr Brown MPV 910  Binary input */
/*
 *      Original Author: Bob Dalesio
 *      Current Author:  Marty Kraimer
 *      Date:            6-1-90
 */


#include	<vxWorks.h>
#include	<stdlib.h>
#include	<stdio.h>
#include	<string.h>

#include	<alarm.h>
#include	<dbDefs.h>
#include	<dbAccess.h>
#include        <recSup.h>
#include	<devSup.h>
#include	<module_types.h>
#include	<biRecord.h>


/* Create the dset for devAiBiMpv910 */
static long init_record();
static long read_bi();

struct {
	long		number;
	DEVSUPFUN	report;
	DEVSUPFUN	init;
	DEVSUPFUN	init_record;
	DEVSUPFUN	get_ioint_info;
	DEVSUPFUN	read_bi;
}devBiMpv910={
	5,
	NULL,
	NULL,
	init_record,
	NULL,
	read_bi};

static long init_record(pbi)
    struct biRecord	*pbi;
{
    struct vmeio *pvmeio;

    /* bi.inp must be an VME_IO */
    switch (pbi->inp.type) {
    case (VME_IO) :
	pvmeio = (struct vmeio *)&(pbi->inp.value);
	pbi->mask=1;
	pbi->mask <<= pvmeio->signal;
	break;
    default :
	recGblRecordError(S_db_badField,(void *)pbi,
		"devBiMpv910 (init_record) Illegal INP field");
	return(S_db_badField);
    }
    return(0);
}

static long read_bi(pbi)
    struct biRecord	*pbi;
{
	struct vmeio 	*pvmeio;
	int	    	status;
	unsigned int    value,mask;

	
	pvmeio = (struct vmeio *)&(pbi->inp.value);
	mask = pbi->mask;
	status = bb910_driver(pvmeio->card,mask,&value);
	if(status==0) {
		pbi->rval = value;
		return(0);
	} else {
                if(recGblSetSevr(pbi,READ_ALARM,INVALID_ALARM) && errVerbose
		&& (pbi->stat!=READ_ALARM || pbi->sevr!=INVALID_ALARM))
			recGblRecordError(-1,(void *)pbi,"bb910_driver Error");
		return(2);
	}
}
