/*      $NetBSD: mmeyepcmcia.c,v 1.27 2024/02/13 21:39:02 andvar 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.
 */

/*
 *  PCMCIA I/F for MMEYE
 *
 *  T.Horiuichi
 *  Brains Corp. 1998.8.25
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: mmeyepcmcia.c,v 1.27 2024/02/13 21:39:02 andvar Exp $");

#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/device.h>
#include <sys/extent.h>
#include <sys/kmem.h>
#include <sys/kthread.h>
#include <sys/bus.h>

#include <uvm/uvm_extern.h>

#include <machine/autoconf.h>
#include <machine/intr.h>
#include <machine/mmeye.h>

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

#include <mmeye/dev/mmeyepcmciareg.h>

#include "locators.h"

#ifdef MMEYEPCMCIADEBUG
int     mmeyepcmcia_debug = 1;
#define DPRINTF(arg) if (mmeyepcmcia_debug) printf arg;
#else
#define DPRINTF(arg)
#endif

struct mmeyepcmcia_event {
        SIMPLEQ_ENTRY(mmeyepcmcia_event) pe_q;
        int pe_type;
};

/* pe_type */
#define MMEYEPCMCIA_EVENT_INSERTION     0
#define MMEYEPCMCIA_EVENT_REMOVAL       1

struct mmeyepcmcia_handle {
        struct mmeyepcmcia_softc *sc;
        int     flags;
        int     laststate;
        int     memalloc;
        struct {
                bus_addr_t              addr;
                bus_size_t              size;
                int                     kind;
                bus_space_tag_t         memt;
                bus_space_handle_t      memh;
        } mem[MMEYEPCMCIA_MEM_WINS];
        int     ioalloc;
        struct {
                bus_addr_t              addr;
                bus_size_t              size;
                int                     width;
                bus_space_tag_t         iot;
                bus_space_handle_t      ioh;
        } io[MMEYEPCMCIA_IO_WINS];
        int     ih_irq;
        device_t pcmcia;

        int     shutdown;
        lwp_t   *event_thread;
        SIMPLEQ_HEAD(, mmeyepcmcia_event) events;
};

#define MMEYEPCMCIA_FLAG_CARDP          0x0002
#define MMEYEPCMCIA_FLAG_SOCKETP        0x0001

#define MMEYEPCMCIA_LASTSTATE_PRESENT   0x0002
#define MMEYEPCMCIA_LASTSTATE_HALF      0x0001
#define MMEYEPCMCIA_LASTSTATE_EMPTY     0x0000

/*
 * This is sort of arbitrary.  It merely needs to be "enough". It can be
 * overridden in the conf file, anyway.
 */

#define MMEYEPCMCIA_MEM_PAGES   4

#define MMEYEPCMCIA_NSLOTS      1

#define MMEYEPCMCIA_WINS        5
#define MMEYEPCMCIA_IOWINS      2

struct mmeyepcmcia_softc {
        device_t dev;

        bus_space_tag_t iot;            /* mmeyepcmcia registers */
        bus_space_handle_t ioh;
        int controller_irq;

        bus_space_tag_t memt;           /* PCMCIA spaces */
        bus_space_handle_t memh;
        int card_irq;

        pcmcia_chipset_tag_t pct;

        /* this needs to be large enough to hold PCIC_MEM_PAGES bits */
        int     subregionmask;
#define MMEYEPCMCIA_MAX_MEM_PAGES (8 * sizeof(int))

        /*
         * used by io/mem window mapping functions.  These can actually overlap
         * with another pcic, since the underlying extent mapper will deal
         * with individual allocations.  This is here to deal with the fact
         * that different busses have different real widths (different pc
         * hardware seems to use 10 or 12 bits for the I/O bus).
         */
        bus_addr_t iobase;
        bus_addr_t iosize;

        struct mmeyepcmcia_handle handle[MMEYEPCMCIA_NSLOTS];
};

static void     mmeyepcmcia_attach_sockets(struct mmeyepcmcia_softc *);
static int      mmeyepcmcia_intr(void *arg);

static inline int mmeyepcmcia_read(struct mmeyepcmcia_handle *, int);
static inline void mmeyepcmcia_write(struct mmeyepcmcia_handle *, int, int);

static int      mmeyepcmcia_chip_mem_alloc(pcmcia_chipset_handle_t, bus_size_t,
                    struct pcmcia_mem_handle *);
static void     mmeyepcmcia_chip_mem_free(pcmcia_chipset_handle_t,
                    struct pcmcia_mem_handle *);
static int      mmeyepcmcia_chip_mem_map(pcmcia_chipset_handle_t, int,
                    bus_addr_t, bus_size_t, struct pcmcia_mem_handle *,
                    bus_size_t *, int *);
static void     mmeyepcmcia_chip_mem_unmap(pcmcia_chipset_handle_t, int);

static int      mmeyepcmcia_chip_io_alloc(pcmcia_chipset_handle_t, bus_addr_t,
                    bus_size_t, bus_size_t, struct pcmcia_io_handle *);
static void     mmeyepcmcia_chip_io_free(pcmcia_chipset_handle_t,
                    struct pcmcia_io_handle *);
static int      mmeyepcmcia_chip_io_map(pcmcia_chipset_handle_t, int,
                    bus_addr_t, bus_size_t, struct pcmcia_io_handle *, int *);
static void     mmeyepcmcia_chip_io_unmap(pcmcia_chipset_handle_t, int);

static void     mmeyepcmcia_chip_socket_enable(pcmcia_chipset_handle_t);
static void     mmeyepcmcia_chip_socket_disable(pcmcia_chipset_handle_t);
static void     mmeyepcmcia_chip_socket_settype(pcmcia_chipset_handle_t, int);

static inline int mmeyepcmcia_read(struct mmeyepcmcia_handle *, int);
static inline int
mmeyepcmcia_read(struct mmeyepcmcia_handle *h, int idx)
{
        static int prev_idx = 0;

        if (idx == -1){
                idx = prev_idx;
        }
        prev_idx = idx;
        return bus_space_read_stream_2(h->sc->iot, h->sc->ioh, idx);
}

static inline void mmeyepcmcia_write(struct mmeyepcmcia_handle *, int, int);
static inline void
mmeyepcmcia_write(struct mmeyepcmcia_handle *h, int idx, int data)
{
        static int prev_idx;
        if (idx == -1){
                idx = prev_idx;
        }
        prev_idx = idx;
        bus_space_write_stream_2(h->sc->iot, h->sc->ioh, idx, (data));
}

static void     *mmeyepcmcia_chip_intr_establish(pcmcia_chipset_handle_t,
                    struct pcmcia_function *, int, int (*) (void *), void *);
static void     mmeyepcmcia_chip_intr_disestablish(pcmcia_chipset_handle_t,
                    void *);
static void     *mmeyepcmcia_chip_intr_establish(pcmcia_chipset_handle_t,
                    struct pcmcia_function *, int, int (*) (void *), void *);
static void     mmeyepcmcia_chip_intr_disestablish(pcmcia_chipset_handle_t,
                    void *);

static void     mmeyepcmcia_attach_socket(struct mmeyepcmcia_handle *);
static void     mmeyepcmcia_init_socket(struct mmeyepcmcia_handle *);
static int      mmeyepcmcia_print (void *, const char *);
static int      mmeyepcmcia_intr_socket(struct mmeyepcmcia_handle *);
static void     mmeyepcmcia_attach_card(struct mmeyepcmcia_handle *);
static void     mmeyepcmcia_detach_card(struct mmeyepcmcia_handle *, int);
static void     mmeyepcmcia_deactivate_card(struct mmeyepcmcia_handle *);
static void     mmeyepcmcia_event_thread(void *);
static void     mmeyepcmcia_queue_event(struct mmeyepcmcia_handle *, int);

static int      mmeyepcmcia_match(device_t, cfdata_t, void *);
static void     mmeyepcmcia_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(mmeyepcmcia, sizeof(struct mmeyepcmcia_softc),
    mmeyepcmcia_match, mmeyepcmcia_attach, NULL, NULL);

static struct pcmcia_chip_functions mmeyepcmcia_functions = {
        mmeyepcmcia_chip_mem_alloc,
        mmeyepcmcia_chip_mem_free,
        mmeyepcmcia_chip_mem_map,
        mmeyepcmcia_chip_mem_unmap,

        mmeyepcmcia_chip_io_alloc,
        mmeyepcmcia_chip_io_free,
        mmeyepcmcia_chip_io_map,
        mmeyepcmcia_chip_io_unmap,

        mmeyepcmcia_chip_intr_establish,
        mmeyepcmcia_chip_intr_disestablish,

        mmeyepcmcia_chip_socket_enable,
        mmeyepcmcia_chip_socket_disable,
        mmeyepcmcia_chip_socket_settype,
        NULL,
};

static int
mmeyepcmcia_match(device_t parent, cfdata_t match, void *aux)
{
        struct mainbus_attach_args *ma = aux;

        if (strcmp(ma->ma_name, match->cf_name) != 0)
                return 0;

        /* Disallow wildcarded values. */
        if (ma->ma_addr1 == MAINBUSCF_ADDR1_DEFAULT ||
            ma->ma_addr2 == MAINBUSCF_ADDR2_DEFAULT ||
            ma->ma_irq2 == MAINBUSCF_IRQ2_DEFAULT)
                return 0;

        return 1;
}

static void
mmeyepcmcia_attach(device_t parent, device_t self, void *aux)
{
        struct mainbus_attach_args *ma = aux;
        struct mmeyepcmcia_softc *sc = device_private(self);

        aprint_naive("\n");

        sc->dev = self;
        sc->subregionmask = 1;  /* 1999.05.17 T.Horiuchi for R1.4 */

        sc->pct = (pcmcia_chipset_tag_t)&mmeyepcmcia_functions;
        sc->iot = 0;
        /* Map i/o space. */
        if (bus_space_map(sc->iot, ma->ma_addr1, MMEYEPCMCIA_IOSIZE,
            0, &sc->ioh)) {
                aprint_error(": can't map i/o space\n");
                return;
        }
        sc->memt = 0;
        sc->iobase = ma->ma_addr2;
        sc->controller_irq = ma->ma_irq1;
        sc->card_irq = ma->ma_irq2;

        sc->handle[0].sc = sc;
        sc->handle[0].flags = MMEYEPCMCIA_FLAG_SOCKETP;
        sc->handle[0].laststate = MMEYEPCMCIA_LASTSTATE_EMPTY;

        SIMPLEQ_INIT(&sc->handle[0].events);

        if (sc->controller_irq != MAINBUSCF_IRQ1_DEFAULT) {
                aprint_normal(": using MMTA irq %d\n", sc->controller_irq);
                mmeye_intr_establish(sc->controller_irq,
                    IST_LEVEL, IPL_TTY, mmeyepcmcia_intr, sc);
        } else
                aprint_normal("\n");

        mmeyepcmcia_attach_sockets(sc);
}

static void *
mmeyepcmcia_chip_intr_establish(pcmcia_chipset_handle_t pch,
    struct pcmcia_function *pf, int ipl, int (*fct)(void *), void *arg)
{
        struct mmeyepcmcia_handle *h = (struct mmeyepcmcia_handle *) pch;
        int irq = h->sc->card_irq;
        void *ih;

        ih = mmeye_intr_establish(irq, IST_LEVEL, ipl, fct, arg);
        h->ih_irq = irq;

        printf("%s: card irq %d\n", device_xname(h->pcmcia), irq);

        return ih;
}

static void
mmeyepcmcia_chip_intr_disestablish(pcmcia_chipset_handle_t pch, void *ih)
{
        struct mmeyepcmcia_handle *h = (struct mmeyepcmcia_handle *) pch;

        h->ih_irq = 0;
        mmeye_intr_disestablish(ih);
}


static void
mmeyepcmcia_attach_sockets(struct mmeyepcmcia_softc *sc)
{

        mmeyepcmcia_attach_socket(&sc->handle[0]);
}

static void
mmeyepcmcia_attach_socket(struct mmeyepcmcia_handle *h)
{
        struct pcmciabus_attach_args paa;

        /* initialize the rest of the handle */

        h->shutdown = 0;
        h->memalloc = 0;
        h->ioalloc = 0;
        h->ih_irq = 0;

        /* now, config one pcmcia device per socket */

        paa.paa_busname = "pcmcia";
        paa.pct = (pcmcia_chipset_tag_t) h->sc->pct;
        paa.pch = (pcmcia_chipset_handle_t) h;

        h->pcmcia =
            config_found(h->sc->dev, &paa, mmeyepcmcia_print, CFARGS_NONE);

        /* if there's actually a pcmcia device attached, initialize the slot */

        if (h->pcmcia)
                mmeyepcmcia_init_socket(h);
}

static void
mmeyepcmcia_event_thread(void *arg)
{
        struct mmeyepcmcia_handle *h = arg;
        struct mmeyepcmcia_event *pe;
        int s;

        while (h->shutdown == 0) {
                s = splhigh();
                if ((pe = SIMPLEQ_FIRST(&h->events)) == NULL) {
                        splx(s);
                        (void) tsleep(&h->events, PWAIT, "mmeyepcmciaev", 0);
                        continue;
                } else {
                        splx(s);
                        /* sleep .25s to be enqueued chatterling interrupts */
                        (void) tsleep((void *)mmeyepcmcia_event_thread, PWAIT,
                            "mmeyepcmciass", hz/4);
                }
                s = splhigh();
                SIMPLEQ_REMOVE_HEAD(&h->events, pe_q);
                splx(s);

                switch (pe->pe_type) {
                case MMEYEPCMCIA_EVENT_INSERTION:
                        s = splhigh();
                        while (1) {
                                struct mmeyepcmcia_event *pe1, *pe2;

                                if ((pe1 = SIMPLEQ_FIRST(&h->events)) == NULL)
                                        break;
                                if (pe1->pe_type != MMEYEPCMCIA_EVENT_REMOVAL)
                                        break;
                                if ((pe2 = SIMPLEQ_NEXT(pe1, pe_q)) == NULL)
                                        break;
                                if (pe2->pe_type == MMEYEPCMCIA_EVENT_INSERTION) {
                                        SIMPLEQ_REMOVE_HEAD(&h->events, pe_q);
                                        kmem_free(pe1, sizeof(*pe1));
                                        SIMPLEQ_REMOVE_HEAD(&h->events, pe_q);
                                        kmem_free(pe2, sizeof(*pe2));
                                }
                        }
                        splx(s);

                        DPRINTF(("%s: insertion event\n", device_xname(h->sc->dev)));
                        mmeyepcmcia_attach_card(h);
                        break;

                case MMEYEPCMCIA_EVENT_REMOVAL:
                        s = splhigh();
                        while (1) {
                                struct mmeyepcmcia_event *pe1, *pe2;

                                if ((pe1 = SIMPLEQ_FIRST(&h->events)) == NULL)
                                        break;
                                if (pe1->pe_type != MMEYEPCMCIA_EVENT_INSERTION)
                                        break;
                                if ((pe2 = SIMPLEQ_NEXT(pe1, pe_q)) == NULL)
                                        break;
                                if (pe2->pe_type == MMEYEPCMCIA_EVENT_REMOVAL) {
                                        SIMPLEQ_REMOVE_HEAD(&h->events, pe_q);
                                        kmem_free(pe1, sizeof(*pe1));
                                        SIMPLEQ_REMOVE_HEAD(&h->events, pe_q);
                                        kmem_free(pe2, sizeof(*pe2));
                                }
                        }
                        splx(s);

                        DPRINTF(("%s: removal event\n", device_xname(h->sc->dev)));
                        mmeyepcmcia_detach_card(h, DETACH_FORCE);
                        break;

                default:
                        panic("mmeyepcmcia_event_thread: unknown event %d",
                            pe->pe_type);
                }
                kmem_free(pe, sizeof(*pe));
        }

        h->event_thread = NULL;

        /* In case parent is waiting for us to exit. */
        wakeup(h->sc);

        kthread_exit(0);
}

static void
mmeyepcmcia_init_socket(struct mmeyepcmcia_handle *h)
{
        int reg;

        /*
         * queue creation of a kernel thread to handle insert/removal events.
         */
#ifdef DIAGNOSTIC
        if (h->event_thread != NULL)
                panic("mmeyepcmcia_attach_socket: event thread");
#endif

        /* if there's a card there, then attach it. */

        reg = mmeyepcmcia_read(h, MMEYEPCMCIA_IF_STATUS);
        reg &= ~MMEYEPCMCIA_IF_STATUS_BUSWIDTH; /* Set bus width to 16bit */

        if ((reg & MMEYEPCMCIA_IF_STATUS_CARDDETECT_MASK) ==
            MMEYEPCMCIA_IF_STATUS_CARDDETECT_PRESENT) {
                int i;

                /* reset the card */
                mmeyepcmcia_write(h, MMEYEPCMCIA_IF_STATUS, reg|MMEYEPCMCIA_IF_STATUS_RESET);
                delay(1000); /* wait 1000 uSec */
                mmeyepcmcia_write(h, MMEYEPCMCIA_IF_STATUS,
                             reg & ~MMEYEPCMCIA_IF_STATUS_RESET);
                for (i = 0; i < 10000; i++)
                        delay(1000); /* wait 1 mSec */

                mmeyepcmcia_attach_card(h);
                h->laststate = MMEYEPCMCIA_LASTSTATE_PRESENT;
        } else {
                h->laststate = MMEYEPCMCIA_LASTSTATE_EMPTY;
        }

        if (kthread_create(PRI_NONE, 0, NULL, mmeyepcmcia_event_thread, h,
            &h->event_thread, "%s", device_xname(h->sc->dev))) {
                printf("%s: unable to create event thread\n",
                    device_xname(h->sc->dev));
                panic("mmeyepcmcia_create_event_thread");
        }
}

static int
mmeyepcmcia_print(void *arg, const char *pnp)
{

        if (pnp)
                aprint_normal("pcmcia at %s", pnp);

        return UNCONF;
}

static int
mmeyepcmcia_intr(void *arg)
{
        struct mmeyepcmcia_softc *sc = arg;

        DPRINTF(("%s: intr\n", device_xname(sc->dev)));

        mmeyepcmcia_intr_socket(&sc->handle[0]);

        return 0;
}

static int
mmeyepcmcia_intr_socket(struct mmeyepcmcia_handle *h)
{
        int cscreg;

        cscreg = mmeyepcmcia_read(h, MMEYEPCMCIA_CSC);

        cscreg &= (MMEYEPCMCIA_CSC_GPI |
                   MMEYEPCMCIA_CSC_CD |
                   MMEYEPCMCIA_CSC_READY |
                   MMEYEPCMCIA_CSC_BATTWARN |
                   MMEYEPCMCIA_CSC_BATTDEAD);

        if (cscreg & MMEYEPCMCIA_CSC_GPI) {
                DPRINTF(("%s: GPI\n", device_xname(h->sc->dev)));
        }
        if (cscreg & MMEYEPCMCIA_CSC_CD) {
                int statreg;

                statreg = mmeyepcmcia_read(h, MMEYEPCMCIA_IF_STATUS);

                DPRINTF(("%s: CD %x\n", device_xname(h->sc->dev), statreg));

                if ((statreg & MMEYEPCMCIA_IF_STATUS_CARDDETECT_MASK) ==
                    MMEYEPCMCIA_IF_STATUS_CARDDETECT_PRESENT) {
                        if (h->laststate != MMEYEPCMCIA_LASTSTATE_PRESENT) {
                                DPRINTF(("%s: enqueuing INSERTION event\n",
                                                 device_xname(h->sc->dev)));
                                mmeyepcmcia_queue_event(h, MMEYEPCMCIA_EVENT_INSERTION);
                        }
                        h->laststate = MMEYEPCMCIA_LASTSTATE_PRESENT;
                } else {
                        if (h->laststate == MMEYEPCMCIA_LASTSTATE_PRESENT) {
                                /* Deactivate the card now. */
                                DPRINTF(("%s: deactivating card\n",
                                                 device_xname(h->sc->dev)));
                                mmeyepcmcia_deactivate_card(h);

                                DPRINTF(("%s: enqueuing REMOVAL event\n",
                                                 device_xname(h->sc->dev)));
                                mmeyepcmcia_queue_event(h, MMEYEPCMCIA_EVENT_REMOVAL);
                        }
                        h->laststate = ((statreg & MMEYEPCMCIA_IF_STATUS_CARDDETECT_MASK) == 0)
                                ? MMEYEPCMCIA_LASTSTATE_EMPTY : MMEYEPCMCIA_LASTSTATE_HALF;
                }
        }
        if (cscreg & MMEYEPCMCIA_CSC_READY) {
                DPRINTF(("%s: READY\n", device_xname(h->sc->dev)));
                /* shouldn't happen */
        }
        if (cscreg & MMEYEPCMCIA_CSC_BATTWARN) {
                DPRINTF(("%s: BATTWARN\n", device_xname(h->sc->dev)));
        }
        if (cscreg & MMEYEPCMCIA_CSC_BATTDEAD) {
                DPRINTF(("%s: BATTDEAD\n", device_xname(h->sc->dev)));
        }
        return cscreg ? 1 : 0;
}

static void
mmeyepcmcia_queue_event(struct mmeyepcmcia_handle *h, int event)
{
        struct mmeyepcmcia_event *pe;
        int s;

        pe = kmem_intr_alloc(sizeof(*pe), KM_NOSLEEP);
        if (pe == NULL)
                panic("mmeyepcmcia_queue_event: can't allocate event");

        pe->pe_type = event;
        s = splhigh();
        SIMPLEQ_INSERT_TAIL(&h->events, pe, pe_q);
        splx(s);
        wakeup(&h->events);
}

static void
mmeyepcmcia_attach_card(struct mmeyepcmcia_handle *h)
{

        if (!(h->flags & MMEYEPCMCIA_FLAG_CARDP)) {
                /* call the MI attach function */
                pcmcia_card_attach(h->pcmcia);

                h->flags |= MMEYEPCMCIA_FLAG_CARDP;
        } else {
                DPRINTF(("mmeyepcmcia_attach_card: already attached"));
        }
}

static void
mmeyepcmcia_detach_card(struct mmeyepcmcia_handle *h, int flags)
{

        if (h->flags & MMEYEPCMCIA_FLAG_CARDP) {
                h->flags &= ~MMEYEPCMCIA_FLAG_CARDP;

                /* call the MI detach function */
                pcmcia_card_detach(h->pcmcia, flags);
        } else {
                DPRINTF(("mmeyepcmcia_detach_card: already detached"));
        }
}

static void
mmeyepcmcia_deactivate_card(struct mmeyepcmcia_handle *h)
{

        /* call the MI deactivate function */
        pcmcia_card_deactivate(h->pcmcia);

        /* Power down and reset XXX notyet */
}

static int
mmeyepcmcia_chip_mem_alloc(pcmcia_chipset_handle_t pch, bus_size_t size,
    struct pcmcia_mem_handle *pcmhp)
{
        struct mmeyepcmcia_handle *h = (struct mmeyepcmcia_handle *) pch;
        bus_addr_t addr;
        bus_size_t sizepg;
        int i, mask, mhandle;

        /* out of sc->memh, allocate as many pages as necessary */
#define MMEYEPCMCIA_MEM_ALIGN   MMEYEPCMCIA_MEM_PAGESIZE
        /* convert size to PCIC pages */
        sizepg = (size + (MMEYEPCMCIA_MEM_ALIGN - 1)) / MMEYEPCMCIA_MEM_ALIGN;
        if (sizepg > MMEYEPCMCIA_MAX_MEM_PAGES)
                return 1;

        mask = (1 << sizepg) - 1;

        addr = 0;               /* XXX gcc -Wuninitialized */
        mhandle = 0;            /* XXX gcc -Wuninitialized */

        for (i = 0; i <= MMEYEPCMCIA_MAX_MEM_PAGES - sizepg; i++) {
                if ((h->sc->subregionmask & (mask << i)) == (mask << i)) {
                        mhandle = mask << i;
                        addr = h->sc->iobase + (i * MMEYEPCMCIA_MEM_PAGESIZE);
                        h->sc->subregionmask &= ~(mhandle);
                        pcmhp->memt = h->sc->memt;
                        pcmhp->memh = 0;
                        pcmhp->addr = addr;
                        pcmhp->size = size;
                        pcmhp->mhandle = mhandle;
                        pcmhp->realsize = sizepg * MMEYEPCMCIA_MEM_PAGESIZE;
                        return 0;
                }
        }

        return 1;
}

static void
mmeyepcmcia_chip_mem_free(pcmcia_chipset_handle_t pch,
    struct pcmcia_mem_handle *pcmhp)
{
        struct mmeyepcmcia_handle *h = (struct mmeyepcmcia_handle *) pch;

        h->sc->subregionmask |= pcmhp->mhandle;
}

static int
mmeyepcmcia_chip_mem_map(pcmcia_chipset_handle_t pch, int kind,
    bus_addr_t card_addr, bus_size_t size, struct pcmcia_mem_handle *pcmhp,
    bus_size_t *offsetp, int *windowp)
{
        struct mmeyepcmcia_handle *h = (struct mmeyepcmcia_handle *) pch;
        bus_addr_t busaddr;
        int i, win;

        win = -1;
        for (i = 0; i < MMEYEPCMCIA_WINS; i++) {
                if ((h->memalloc & (1 << i)) == 0) {
                        win = i;
                        h->memalloc |= (1 << i);
                        break;
                }
        }

        if (win == -1)
                return 1;

        *windowp = win;

        /* XXX this is pretty gross */

        busaddr = pcmhp->addr + card_addr;

#if defined(SH7750R)
        switch (kind) {
        case PCMCIA_MEM_ATTR:
        case PCMCIA_MEM_ATTR | PCMCIA_WIDTH_MEM16:
                pcmhp->memt = SH3_BUS_SPACE_PCMCIA_ATT;
                break;

        case PCMCIA_MEM_ATTR | PCMCIA_WIDTH_MEM8:
                pcmhp->memt = SH3_BUS_SPACE_PCMCIA_ATT8;
                break;

        case PCMCIA_MEM_COMMON:
        case PCMCIA_MEM_COMMON | PCMCIA_WIDTH_MEM16:
                pcmhp->memt = SH3_BUS_SPACE_PCMCIA_MEM;
                break;

        case PCMCIA_MEM_COMMON | PCMCIA_WIDTH_MEM8:
                pcmhp->memt = SH3_BUS_SPACE_PCMCIA_MEM8;
                break;

        default:
                panic("mmeyepcmcia_chip_mem_map kind is bogus: 0x%x", kind);
        }
#else
        if (!bus_space_is_equal(h->sc->memt, pcmhp->memt))
                panic("mmeyepcmcia_chip_mem_map memt is bogus");
        if (kind != PCMCIA_MEM_ATTR)
                busaddr += MMEYEPCMCIA_ATTRMEM_SIZE;
#endif
        if (bus_space_map(pcmhp->memt, busaddr, pcmhp->size, 0, &pcmhp->memh))
                return 1;

        /*
         * compute the address offset to the pcmcia address space for the
         * pcic.  this is intentionally signed.  The masks and shifts below
         * will cause TRT to happen in the pcic registers.  Deal with making
         * sure the address is aligned, and return the alignment offset.
         */

        *offsetp = 0;

        DPRINTF(("mmeyepcmcia_chip_mem_map window %d bus %lx+%lx+%lx at card addr "
            "%lx\n", win, (u_long) busaddr, (u_long) * offsetp, (u_long) size,
            (u_long) card_addr));

        /*
         * include the offset in the size, and decrement size by one, since
         * the hw wants start/stop
         */
        h->mem[win].addr = busaddr;
        h->mem[win].size = size - 1;
        h->mem[win].kind = kind;
        h->mem[win].memt = pcmhp->memt;
        h->mem[win].memh = pcmhp->memh;

        return 0;
}

static void
mmeyepcmcia_chip_mem_unmap(pcmcia_chipset_handle_t pch, int window)
{
        struct mmeyepcmcia_handle *h = (struct mmeyepcmcia_handle *) pch;

        if (window >= MMEYEPCMCIA_WINS)
                panic("mmeyepcmcia_chip_mem_unmap: window out of range");

        h->memalloc &= ~(1 << window);

        bus_space_unmap(h->mem[window].memt, h->mem[window].memh,
            h->mem[window].size);
}

static int
mmeyepcmcia_chip_io_alloc(pcmcia_chipset_handle_t pch, bus_addr_t start,
    bus_size_t size, bus_size_t align, struct pcmcia_io_handle *pcihp)
{
        struct mmeyepcmcia_handle *h = (struct mmeyepcmcia_handle *) pch;
        bus_addr_t ioaddr;

        /*
         * Allocate some arbitrary I/O space.
         */
       ioaddr = h->sc->iobase + start;
       DPRINTF(("mmeyepcmcia_chip_io_alloc alloc port %lx+%lx\n",
            ioaddr, size));

        pcihp->iot = h->sc->memt;
        pcihp->ioh = 0;
        pcihp->addr = ioaddr;
        pcihp->size = size;

        return 0;
}

static void
mmeyepcmcia_chip_io_free(pcmcia_chipset_handle_t pch,
    struct pcmcia_io_handle *pcihp)
{
}

static int
mmeyepcmcia_chip_io_map(pcmcia_chipset_handle_t pch, int width,
    bus_addr_t offset, bus_size_t size, struct pcmcia_io_handle *pcihp,
    int *windowp)
{
        struct mmeyepcmcia_handle *h = (struct mmeyepcmcia_handle *) pch;
        bus_addr_t busaddr;
        int i, win;
#ifdef MMEYEPCMCIADEBUG
        static const char *width_names[] = { "auto", "io8", "io16" };
#endif

        /* I/O width is hardwired to 16bit mode on mmeye. */
        width = PCMCIA_WIDTH_IO16;

        win = -1;
        for (i = 0; i < MMEYEPCMCIA_IOWINS; i++) {
                if ((h->ioalloc & (1 << i)) == 0) {
                        win = i;
                        h->ioalloc |= (1 << i);
                        break;
                }
        }

        if (win == -1)
                return 1;

        *windowp = win;

        /* XXX this is pretty gross */

        busaddr = pcihp->addr + offset;

#if defined(SH7750R)
        switch (width) {
        case PCMCIA_WIDTH_IO8:
                pcihp->iot = SH3_BUS_SPACE_PCMCIA_IO8;
                break;

        case PCMCIA_WIDTH_IO16:
                pcihp->iot = SH3_BUS_SPACE_PCMCIA_IO;
                break;

        case PCMCIA_WIDTH_AUTO:
        default:
                panic("mmeyepcmcia_chip_io_map width is bogus: 0x%x", width);
        }
#else
        if (!bus_space_is_equal(h->sc->iot, pcihp->iot))
                panic("mmeyepcmcia_chip_io_map iot is bogus");
        busaddr += MMEYEPCMCIA_ATTRMEM_SIZE;
#endif
        if (bus_space_map(pcihp->iot, busaddr, pcihp->size, 0, &pcihp->ioh))
                return 1;

        DPRINTF(("mmeyepcmcia_chip_io_map window %d %s port %lx+%lx\n",
                 win, width_names[width], (u_long) offset, (u_long) size));

        /* XXX wtf is this doing here? */

        h->io[win].addr = busaddr;
        h->io[win].size = size;
        h->io[win].width = width;
        h->io[win].iot = pcihp->iot;
        h->io[win].ioh = pcihp->ioh;

        return 0;
}

static void
mmeyepcmcia_chip_io_unmap(pcmcia_chipset_handle_t pch, int window)
{
        struct mmeyepcmcia_handle *h = (struct mmeyepcmcia_handle *) pch;

        if (window >= MMEYEPCMCIA_IOWINS)
                panic("mmeyepcmcia_chip_io_unmap: window out of range");

        h->ioalloc &= ~(1 << window);

        bus_space_unmap(h->io[window].iot, h->io[window].ioh,
            h->io[window].size);
}

static void
mmeyepcmcia_chip_socket_enable(pcmcia_chipset_handle_t pch)
{
}

static void
mmeyepcmcia_chip_socket_disable(pcmcia_chipset_handle_t pch)
{
}

static void
mmeyepcmcia_chip_socket_settype(pcmcia_chipset_handle_t pch, int type)
{
}