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

/* $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)
{
}