/* devMbboDirectMpv902.c */
/* base/src/dev $Id$ */

/* devMbboDirectMpv902.c - Device Support Routines	*/
/* Burr Brown MPV 902 				*/
/*
 *      Original Author: Bob Dalesio
 *      Current Author:  Matthew Needes
 *      Date:            10-08-93
 *
 *      Experimental Physics and Industrial Control System (EPICS)
 *
 *      Copyright 1991, the Regents of the University of California,
 *      and the University of Chicago Board of Governors.
 *
 *      This software was produced under  U.S. Government contracts:
 *      (W-7405-ENG-36) at the Los Alamos National Laboratory,
 *      and (W-31-109-ENG-38) at Argonne National Laboratory.
 *
 *      Initial development by:
 *              The Controls and Automation Group (AT-8)
 *              Ground Test Accelerator
 *              Accelerator Technology Division
 *              Los Alamos National Laboratory
 *
 *      Co-developed with
 *              The Controls and Computing Group
 *              Accelerator Systems Division
 *              Advanced Photon Source
 *              Argonne National Laboratory
 *
 * Modification Log:  (Log for DevMbboMpv902 also applies)
 * -----------------
 *  1. 10-08-93   mcn       (created) dev support for MbboDirect records
 */


#include	<vxWorks.h>
#include	<types.h>
#include	<stdioLib.h>
#include	<string.h>

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


/* Create the dset for devMbboDirectMpv902 */
static long init_record();
static long write_mbbo();

struct {
	long		number;
	DEVSUPFUN	report;
	DEVSUPFUN	init;
	DEVSUPFUN	init_record;
	DEVSUPFUN	get_ioint_info;
	DEVSUPFUN	write_mbbo;
}devMbboDirectMpv902={
	5,
	NULL,
	NULL,
	init_record,
	NULL,
	write_mbbo};

static long init_record(pmbbo)
    struct mbboDirectRecord	*pmbbo;
{
    unsigned long value;
    struct vmeio *pvmeio;
    int		status=0;

    /* mbbo.out must be an VME_IO */
    switch (pmbbo->out.type) {
    case (VME_IO) :
	pvmeio = &(pmbbo->out.value.vmeio);
	pmbbo->shft = pvmeio->signal;
	pmbbo->mask <<= pmbbo->shft;
	status = bb902_read(pvmeio->card,pmbbo->mask,&value);
	if(status==0) pmbbo->rbv = pmbbo->rval = value;
	else status = 2;
	break;
    default :
	status = S_db_badField;
	recGblRecordError(status,(void *)pmbbo,
		"devMbboDirectMpv902 (init_record) Illegal OUT field");
    }
    return(status);
}

static long write_mbbo(pmbbo)
    struct mbboDirectRecord	*pmbbo;
{
	struct vmeio *pvmeio;
	int	    status;
	unsigned long value;

	
	pvmeio = &(pmbbo->out.value.vmeio);

	status = bb902_driver(pvmeio->card,pmbbo->rval,pmbbo->mask);
	if(status==0) {
		status = bb902_read(pvmeio->card,pmbbo->mask,&value);
		if(status==0) pmbbo->rbv = value;
                else recGblSetSevr(pmbbo,READ_ALARM,INVALID_ALARM);
	} else {
                recGblSetSevr(pmbbo,WRITE_ALARM,INVALID_ALARM);
	}
	return(status);
}
