/*
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Don Ahn.
 *
 * Libretto PCMCIA floppy support by David Horwitt (dhorwitt@ucsd.edu)
 * aided by the Linux floppy driver modifications from David Bateman
 * (dbateman@eng.uts.edu.au).
 *
 * Copyright (c) 1993, 1994 by
 *  jc@irbs.UUCP (John Capo)
 *  vak@zebub.msk.su (Serge Vakulenko)
 *  ache@astral.msk.su (Andrew A. Chernov)
 *
 * Copyright (c) 1993, 1994, 1995 by
 *  joerg_wunsch@uriah.sax.de (Joerg Wunsch)
 *  dufault@hda.com (Peter Dufault)
 *
 * Copyright (c) 2001 Joerg Wunsch,
 *  joerg_wunsch@uriah.sax.de (Joerg Wunsch)
 *
 * 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.
 *
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>

#include "fdc.h"
#include "fdreg.h"

#include <bus/pccard/pccardvar.h>

#include "card_if.h"
#include "pccarddevs.h"

static const struct pccard_product fdc_products[] = {
        PCMCIA_CARD(YEDATA, EXTERNAL_FDD, 0),
        { NULL }
};

static void
fdctl_wr_pcmcia(fdc_p fdc, u_int8_t v)
{
        bus_space_write_1(fdc->portt, fdc->porth, FDCTL+fdc->port_off, v);
}

static int fdc_pccard_match(device_t dev)
{
        const struct pccard_product *pp;

        if ((pp = pccard_product_lookup(dev, fdc_products,
            sizeof(fdc_products[0]), NULL)) != NULL) {
                device_set_desc(dev, pp->pp_name);
                return (0);
        }
        return (ENXIO);
}

static int
fdc_pccard_probe(device_t dev)
{
        int     error;
        struct  fdc_data *fdc;

        fdc = device_get_softc(dev);
        bzero(fdc, sizeof *fdc);
        fdc->fdc_dev = dev;
        fdc->fdctl_wr = fdctl_wr_pcmcia;

        fdc->flags |= FDC_ISPCMCIA | FDC_NODMA;

        /* Attempt to allocate our resources for the duration of the probe */
        error = fdc_alloc_resources(fdc);
        if (error)
                goto out;

        /* First - lets reset the floppy controller */
        fdout_wr(fdc, 0);
        DELAY(100);
        fdout_wr(fdc, FDO_FRST);

        /* see if it can handle a command */
        if (fd_cmd(fdc, 3, NE7CMD_SPECIFY, NE7_SPEC_1(3, 240), 
                   NE7_SPEC_2(2, 0), 0)) {
                error = ENXIO;
                goto out;
        }

        fdc->fdct = FDC_NE765;

out:
        fdc_release_resources(fdc);
        return (error);
}

static int
fdc_pccard_detach(device_t dev)
{
        struct  fdc_data *fdc;
        int     error;

        fdc = device_get_softc(dev);

        /* have our children detached first */
        if ((error = bus_generic_detach(dev)))
                return (error);

        if ((fdc->flags & FDC_ATTACHED) == 0) {
                device_printf(dev, "already unloaded\n");
                return (0);
        }
        fdc->flags &= ~FDC_ATTACHED;

        BUS_TEARDOWN_INTR(device_get_parent(dev), dev, fdc->res_irq,
                          fdc->fdc_intr);
        fdc_release_resources(fdc);
        device_printf(dev, "unload\n");
        return (0);
}

static device_method_t fdc_pccard_methods[] = {
        /* Device interface */
        DEVMETHOD(device_probe,         pccard_compat_probe),
        DEVMETHOD(device_attach,        pccard_compat_attach),
        DEVMETHOD(device_detach,        fdc_pccard_detach),
        DEVMETHOD(device_shutdown,      bus_generic_shutdown),
        DEVMETHOD(device_suspend,       bus_generic_suspend),
        DEVMETHOD(device_resume,        bus_generic_resume),

        /* Card interface */
        DEVMETHOD(card_compat_match,    fdc_pccard_match),
        DEVMETHOD(card_compat_probe,    fdc_pccard_probe),
        DEVMETHOD(card_compat_attach,   fdc_attach),
        /* Device interface */

        /* Bus interface */
        DEVMETHOD(bus_print_child,      fdc_print_child),
        DEVMETHOD(bus_read_ivar,        fdc_read_ivar),
        /* Our children never use any other bus interface methods. */

        DEVMETHOD_END
};

static driver_t fdc_pccard_driver = {
        "fdc",
        fdc_pccard_methods,
        sizeof(struct fdc_data)
};

DRIVER_MODULE(fdc, pccard, fdc_pccard_driver, fdc_devclass, NULL, NULL);