/*      $OpenBSD: aic_isa.c,v 1.10 2022/04/06 18:59:28 naddy Exp $      */
/*      $NetBSD: aic6360.c,v 1.52 1996/12/10 21:27:51 thorpej Exp $     */

/*
 * Copyright (c) 1994, 1995, 1996 Charles Hannum.  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 Charles M. Hannum.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Copyright (c) 1994 Jarle Greipsland
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/*
 * Acknowledgements: Many of the algorithms used in this driver are
 * inspired by the work of Julian Elischer (julian@tfs.com) and
 * Charles Hannum (mycroft@duality.gnu.ai.mit.edu).  Thanks a million!
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/device.h>
#include <sys/buf.h>
#include <sys/queue.h>

#include <machine/bus.h>
#include <machine/intr.h>

#include <scsi/scsi_all.h>
#include <scsi/scsi_message.h>
#include <scsi/scsiconf.h>

#include <dev/isa/isavar.h>

#include <dev/ic/aic6360reg.h>
#include <dev/ic/aic6360var.h>

int     aic_isa_probe(struct device *, void *, void *);
void    aic_isa_attach(struct device *, struct device *, void *);

const struct cfattach aic_isa_ca = {
        sizeof(struct aic_softc), aic_isa_probe, aic_isa_attach
};

/*
 * INITIALIZATION ROUTINES (probe, attach ++)
 */

/*
 * aicprobe: probe for AIC6360 SCSI-controller
 * returns non-zero value if a controller is found.
 */
int
aic_isa_probe(struct device *parent, void *match, void *aux)
{
        struct isa_attach_args *ia = aux;
        bus_space_tag_t iot = ia->ia_iot;
        bus_space_handle_t ioh;
        int rv;

        if (bus_space_map(iot, ia->ia_iobase, AIC_NPORTS, 0, &ioh))
                return (0);

        AIC_TRACE(("aic: probing for aic-chip at port 0x%x\n", ia->ia_iobase));
        rv = aic_find(iot, ioh);

        bus_space_unmap(iot, ioh, AIC_NPORTS);

        if (rv) {
                ia->ia_msize = 0;
                ia->ia_iosize = AIC_NPORTS;
        }
        return (rv);
}

/*
 * Attach the AIC6360, fill out some high and low level data structures
 */
void
aic_isa_attach(struct device *parent, struct device *self, void *aux)
{
        struct isa_attach_args *ia = aux;
        bus_space_tag_t iot = ia->ia_iot;
        bus_space_handle_t ioh;
        struct aic_softc *sc = (void *)self;

        if (bus_space_map(iot, ia->ia_iobase, AIC_NPORTS, 0, &ioh))
                panic("%s: can't map i/o-ports", sc->sc_dev.dv_xname);

        sc->sc_iot = iot;
        sc->sc_ioh = ioh;

        printf("\n");

        sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
            IPL_BIO, aicintr, sc, sc->sc_dev.dv_xname);

        aicattach(sc);
}