/*      $NetBSD: aic_pcmcia.c,v 1.44 2017/08/01 12:15:21 christos Exp $ */

/*
 * Copyright (c) 1997 Marc Horowitz.  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 Marc Horowitz.
 * 4. 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.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: aic_pcmcia.c,v 1.44 2017/08/01 12:15:21 christos Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/select.h>
#include <sys/device.h>

#include <sys/cpu.h>
#include <sys/bus.h>
#include <sys/intr.h>

#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsipiconf.h>
#include <dev/scsipi/scsi_all.h>

#include <dev/ic/aic6360var.h>

#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/pcmcia/pcmciadevs.h>

struct aic_pcmcia_softc {
        struct aic_softc sc_aic;                /* real "aic" softc */

        /* PCMCIA-specific goo. */
        struct pcmcia_function *sc_pf;          /* our PCMCIA function */
        void *sc_ih;                            /* interrupt handler */

        int sc_state;
#define AIC_PCMCIA_ATTACHED     3
};

static int      aic_pcmcia_match(device_t, cfdata_t, void *);
static int      aic_pcmcia_validate_config(struct pcmcia_config_entry *);
static void     aic_pcmcia_attach(device_t, device_t, void *);
static int      aic_pcmcia_detach(device_t, int);
static int      aic_pcmcia_enable(device_t, int);

CFATTACH_DECL_NEW(aic_pcmcia, sizeof(struct aic_pcmcia_softc),
    aic_pcmcia_match, aic_pcmcia_attach, aic_pcmcia_detach, NULL);

static const struct pcmcia_product aic_pcmcia_products[] = {
        { PCMCIA_VENDOR_ADAPTEC, PCMCIA_PRODUCT_ADAPTEC_APA1460,
          PCMCIA_CIS_INVALID },

        { PCMCIA_VENDOR_ADAPTEC, PCMCIA_PRODUCT_ADAPTEC_APA1460A,
          PCMCIA_CIS_INVALID },

        { PCMCIA_VENDOR_NEWMEDIA, PCMCIA_PRODUCT_NEWMEDIA_BUSTOASTER,
          PCMCIA_CIS_INVALID },
};
static const size_t aic_pcmcia_nproducts = __arraycount(aic_pcmcia_products);

int
aic_pcmcia_match(device_t parent, cfdata_t match, void *aux)
{
        struct pcmcia_attach_args *pa = aux;

        if (pcmcia_product_lookup(pa, aic_pcmcia_products, aic_pcmcia_nproducts,
            sizeof(aic_pcmcia_products[0]), NULL))
                return (1);
        return (0);
}

int
aic_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
{
        if (cfe->iftype != PCMCIA_IFTYPE_IO ||
            cfe->num_memspace != 0 ||
            cfe->num_iospace != 1)
                return (EINVAL);

        cfe->iomask = 0;                /* XXX: wrong from cfe?, quirk? */
        return (0);
}

void
aic_pcmcia_attach(device_t parent, device_t self, void *aux)
{
        struct aic_pcmcia_softc *psc = device_private(self);
        struct aic_softc *sc = &psc->sc_aic;
        struct pcmcia_attach_args *pa = aux;
        struct pcmcia_config_entry *cfe;
        struct pcmcia_function *pf = pa->pf;
        int error;

        sc->sc_dev = self;
        psc->sc_pf = pf;

        error = pcmcia_function_configure(pf, aic_pcmcia_validate_config);
        if (error) {
                aprint_error_dev(self, "configure failed, error=%d\n", error);
                return;
        }

        cfe = pf->cfe;
        sc->sc_iot = cfe->iospace[0].handle.iot;
        sc->sc_ioh = cfe->iospace[0].handle.ioh;

        error = aic_pcmcia_enable(self, 1);
        if (error)
                goto fail;

        if (!aic_find(sc->sc_iot, sc->sc_ioh)) {
                aprint_error_dev(self, "unable to detect chip!\n");
                goto fail2;
        }

        /* We can enable and disable the controller. */
        sc->sc_adapter.adapt_enable = aic_pcmcia_enable;
        sc->sc_adapter.adapt_refcnt = 1;

        aicattach(sc);
        scsipi_adapter_delref(&sc->sc_adapter);
        psc->sc_state = AIC_PCMCIA_ATTACHED;
        return;

fail2:
        aic_pcmcia_enable(self, 0);
fail:
        pcmcia_function_unconfigure(pf);
}

int
aic_pcmcia_detach(device_t self, int flags)
{
        struct aic_pcmcia_softc *psc = device_private(self);
        int error;

        if (psc->sc_state != AIC_PCMCIA_ATTACHED)
                return (0);

        error = aic_detach(self, flags);
        if (error)
                return (error);

        pcmcia_function_unconfigure(psc->sc_pf);

        return (0);
}

int
aic_pcmcia_enable(device_t self, int onoff)
{
        struct aic_pcmcia_softc *psc = device_private(self);
        struct aic_softc *sc = &psc->sc_aic;
        int error;

        if (onoff) {
                /* Establish the interrupt handler. */
                psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_BIO,
                    aicintr, sc);
                if (!psc->sc_ih)
                        return (EIO);

                error = pcmcia_function_enable(psc->sc_pf);
                if (error) {
                        pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
                        psc->sc_ih = 0;
                        return (error);
                }

                /* Initialize only chip.  */
                aic_init(sc, 0);
        } else {
                pcmcia_function_disable(psc->sc_pf);
                pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
                psc->sc_ih = 0;
        }

        return (0);
}