/*	$OpenBSD: vsdma.c,v 1.1 1999/05/29 04:41:44 smurph Exp $ */
/*
 * Copyright (c) 1999 Steve Murphree, Jr.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)vsdma.c
 */

/*
 * MVME328 scsi adaptor driver
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <machine/autoconf.h>

#if defined(MVME187)
#include <machine/board.h>
#include <mvme88k/dev/vsreg.h>
#include <mvme88k/dev/vsvar.h>
#include <mvme88k/dev/vme.h>
#include "machine/mmu.h"
#else
#include <mvme68k/dev/vsreg.h>
#include <mvme68k/dev/vsvar.h>
#include <mvme68k/dev/vme.h>
#endif /* defined(MVME187) */

int	vsmatch         __P((struct device *, void *, void *));
void	vsattach        __P((struct device *, struct device *, void *));
int	vsprint         __P((void *auxp, char *));
void  vs_initialize   __P((struct vs_softc *));
int	vs_intr         __P((struct vs_softc *));
int	vs_nintr        __P((struct vs_softc *));
int	vs_eintr        __P((struct vs_softc *));

struct scsi_adapter vs_scsiswitch = {
	vs_scsicmd,
	vs_minphys,
	0,			/* no lun support */
	0,			/* no lun support */
};

struct scsi_device vs_scsidev = {
	NULL,		/* use default error handler */
	NULL,		/* do not have a start function */
	NULL,		/* have no async handler */
	NULL,		/* Use default done routine */
};

struct cfattach vs_ca = {
        sizeof(struct vs_softc), vsmatch, vsattach,
};    
 
struct cfdriver vs_cd = {
        NULL, "vs", DV_DULL, 0 
}; 

int
vsmatch(pdp, vcf, args)
	struct device *pdp;
	void *vcf, *args;
{
	struct cfdata *cf = vcf;
	struct confargs *ca = args;
	if (!badvaddr(ca->ca_vaddr, 1)) {
      if (ca->ca_vec & 0x03) {
         printf("vs: bad vector 0x%x\n", ca->ca_vec);
         return (0);
      }
		return(1);
   } else {
		return (0);
	}	    
}

void
vsattach(parent, self, auxp)
	struct device *parent, *self;
	void *auxp;
{
	struct vs_softc *sc = (struct vs_softc *)self;
	struct confargs *ca = auxp;
	struct vsreg * rp;
	int tmp;
	extern int cpuspeed;

	sc->sc_vsreg = rp = ca->ca_vaddr;

	sc->sc_ipl = ca->ca_ipl;
   sc->sc_nvec = ca->ca_vec + 0;
   sc->sc_evec = ca->ca_vec + 1;
   sc->sc_link.adapter_softc = sc;
	sc->sc_link.adapter_target = 7;
	sc->sc_link.adapter = &vs_scsiswitch;
	sc->sc_link.device = &vs_scsidev;
	sc->sc_link.openings = 1;

	sc->sc_ih_n.ih_fn = vs_nintr;
	sc->sc_ih_n.ih_arg = sc;
	sc->sc_ih_n.ih_ipl = ca->ca_ipl;
	
   
   sc->sc_ih_e.ih_fn = vs_eintr;
	sc->sc_ih_e.ih_arg = sc;
	sc->sc_ih_e.ih_ipl = ca->ca_ipl;
   
	vs_initialize(sc);

	vmeintr_establish(sc->sc_nvec, &sc->sc_ih_n);
	vmeintr_establish(sc->sc_evec, &sc->sc_ih_e);
   evcnt_attach(&sc->sc_dev, "intr", &sc->sc_intrcnt_n);
   evcnt_attach(&sc->sc_dev, "intr", &sc->sc_intrcnt_e);

	/*
	 * attach all scsi units on us, watching for boot device
	 * (see dk_establish).
	 */
	tmp = bootpart;
	if (ca->ca_paddr != bootaddr) 
		bootpart = -1;          /* invalid flag to dk_establish */
	config_found(self, &sc->sc_link, scsiprint);
	bootpart = tmp;             /* restore old value */
}

/*
 * print diag if pnp is NULL else just extra
 */
int
vsprint(auxp, pnp)
	void *auxp;
	char *pnp;
{
	if (pnp == NULL)
		return (UNCONF);
	return (QUIET);
}

/* normal interrupt function */
int
vs_nintr(sc)
	struct vs_softc *sc;
{
#ifdef SDEBUG
   printf("Normal Interrupt!!!\n");
#endif 
   vs_intr(sc);
	sc->sc_intrcnt_n.ev_count++;
	return (1);
}

/* error interrupt function */
int
vs_eintr(sc)
	struct vs_softc *sc;
{
#ifdef SDEBUG
   printf("Error Interrupt!!!\n");
#endif
	vs_intr(sc);
	sc->sc_intrcnt_e.ev_count++;
	return (1);
}