The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/pccard/mecia.c

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    1 /*
    2  *  NEC MECIA controller.
    3  *-------------------------------------------------------------------------
    4  */
    5 /*-
    6  * Copyright (c) 2001 M. Warner Losh.  All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD: src/sys/pccard/mecia.c,v 1.5.2.1 2005/01/31 23:26:49 imp Exp $
   29  *
   30  * Based heavily on the FreeBSD pcic driver's pcic98 support, derived
   31  * from PAO3 tree.  This copyright notice likely needs modification for
   32  * such a linage.  The only authorship I could find was:
   33  *
   34  * PC9801 original PCMCIA controller code for NS/A,Ne,NX/C,NR/L.
   35  * by Noriyuki Hosobuchi <hoso@ce.mbn.or.jp>
   36  */
   37 
   38 #include <sys/param.h>
   39 #include <sys/bus.h>
   40 #include <sys/systm.h>
   41 #include <sys/kernel.h>
   42 #include <sys/module.h>
   43 
   44 #include <pccard/meciareg.h>
   45 #include <pccard/cardinfo.h>
   46 #include <pccard/slot.h>
   47 #ifndef MECIA_IOBASE
   48 #define MECIA_IOBASE   0x80d0
   49 #endif
   50 
   51 /* Get pnp IDs */
   52 #include <isa/isavar.h>
   53 
   54 #include <dev/pccard/pccardvar.h>
   55 #include "card_if.h"
   56 
   57 #define MECIA_DEVICE2SOFTC(dev) ((struct mecia_slot *) device_get_softc(dev))
   58 
   59 /*
   60  *      Prototypes for interrupt handler.
   61  */
   62 static driver_intr_t    meciaintr;
   63 static int              mecia_ioctl(struct slot *, int, caddr_t);
   64 static int              mecia_power(struct slot *);
   65 static void             mecia_mapirq(struct slot *, int);
   66 static timeout_t        mecia_reset;
   67 static void             mecia_resume(struct slot *);
   68 static void             mecia_disable(struct slot *);
   69 static timeout_t        meciatimeout;
   70 static struct callout_handle meciatimeout_ch
   71     = CALLOUT_HANDLE_INITIALIZER(&meciatimeout_ch);
   72 static int              mecia_memory(struct slot *, int);
   73 static int              mecia_io(struct slot *, int);
   74 
   75 /*
   76  *      Per-slot data table.
   77  */
   78 struct mecia_slot {
   79         int             unit;           /* Unit number */
   80         int             slotnum;        /* My slot number */
   81         struct slot     *slt;           /* Back ptr to slot */
   82         device_t        dev;            /* My device */
   83         u_char          last_reg1;      /* Last value of change reg */
   84 };
   85 
   86 static struct slot_ctrl mecia_cinfo = {
   87         mecia_mapirq,
   88         mecia_memory,
   89         mecia_io,
   90         mecia_reset,
   91         mecia_disable,
   92         mecia_power,
   93         mecia_ioctl,
   94         mecia_resume,
   95         1,
   96 #if 0
   97         1
   98 #else
   99         2               /* Fake for UE2212 LAN card */
  100 #endif
  101 };
  102 
  103 static int validunits = 0;
  104 
  105 /*
  106  *      Look for an NEC MECIA.
  107  *      For each available slot, allocate a PC-CARD slot.
  108  */
  109 
  110 static int
  111 mecia_probe(device_t dev)
  112 {
  113         int             validslots = 0;
  114 
  115         /* Check isapnp ids */
  116         if (isa_get_logicalid(dev))             /* skip PnP probes */
  117                 return (ENXIO);
  118 
  119         if (inb(MECIA_REG0) != 0xff) {
  120                 validslots++;
  121                 /* XXX need to allocated the port resources */
  122                 device_set_desc(dev, "MECIA PC98 Original PCMCIA Controller");
  123         }
  124         return (validslots ? 0 : ENXIO);
  125 }
  126 
  127 static int
  128 mecia_attach(device_t dev)
  129 {
  130         int             error;
  131         int             irq;
  132         void            *ih;
  133         device_t        kid;
  134         struct resource *r;
  135         int             rid;
  136         struct slot     *slt;
  137         struct mecia_slot *sp;
  138         
  139         sp = MECIA_DEVICE2SOFTC(dev);
  140         sp->unit = validunits++;
  141         kid = device_add_child(dev, NULL, -1);
  142         if (kid == NULL) {
  143                 device_printf(dev, "Can't add pccard bus slot 0\n");
  144                 return (ENXIO);
  145         }
  146         device_probe_and_attach(kid);
  147         slt = pccard_init_slot(kid, &mecia_cinfo);
  148         if (slt == 0) {
  149                 device_printf(dev, "Can't get pccard info slot 0\n");
  150                 return (ENXIO);
  151         }
  152         slt->cdata = sp;
  153         sp->slt = slt;
  154         validunits++;
  155 
  156         rid = 0;
  157         r = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
  158         if (!r)
  159                 return (ENXIO);
  160 
  161         irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
  162         if (irq == 0) {
  163                 /* See if the user has requested a specific IRQ */
  164                 if (!getenv_int("machdep.pccard.mecia_irq", &irq))
  165                         irq = 0;
  166         }
  167         rid = 0;
  168         r = 0;
  169         if (irq > 0) {
  170                 r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, irq,
  171                     irq, 1, RF_ACTIVE);
  172         }
  173         if (r && ((1 << (rman_get_start(r))) & MECIA_INT_MASK_ALLOWED) == 0) {
  174                 device_printf(dev,
  175                     "Hardware does not support irq %d, trying polling.\n",
  176                     irq);
  177                 bus_release_resource(dev, SYS_RES_IRQ, rid, r);
  178                 r = 0;
  179                 irq = 0;
  180         }
  181         if (r) {
  182                 error = bus_setup_intr(dev, r, INTR_TYPE_MISC,
  183                     meciaintr, (void *) sp, &ih);
  184                 if (error) {
  185                         bus_release_resource(dev, SYS_RES_IRQ, rid, r);
  186                         return (error);
  187                 }
  188                 irq = rman_get_start(r);
  189                 device_printf(dev, "management irq %d\n", irq);
  190         } else {
  191                 irq = 0;
  192         }
  193         if (irq == 0) {
  194                 meciatimeout_ch = timeout(meciatimeout, (void *) sp, hz/2);
  195                 device_printf(dev, "Polling mode\n");
  196         }
  197 
  198         sp->last_reg1 = inb(MECIA_REG1);
  199         if (sp->last_reg1 & MECIA_CARDEXIST) {
  200                 /* PCMCIA card exist */
  201                 sp->slt->laststate = sp->slt->state = filled;
  202                 pccard_event(sp->slt, card_inserted);
  203         } else {
  204                 sp->slt->laststate = sp->slt->state = empty;
  205         }
  206         sp->slt->irq = irq;
  207 
  208         return (bus_generic_attach(dev));
  209 }
  210 
  211 static int
  212 mecia_sresource(struct slot *slt, caddr_t data)
  213 {
  214         struct pccard_resource *pr;
  215         struct resource *r;
  216         int flags;
  217         int rid = 0;
  218         device_t pccarddev = slt->dev;
  219 
  220         pr = (struct pccard_resource *)data;
  221         pr->resource_addr = ~0ul;
  222         switch(pr->type) {
  223         default:
  224                 return (EINVAL);
  225         case SYS_RES_MEMORY:
  226         case SYS_RES_IRQ:
  227         case SYS_RES_IOPORT:
  228                 break;
  229         }
  230         flags = rman_make_alignment_flags(pr->size);
  231         r = bus_alloc_resource(pccarddev, pr->type, &rid, pr->min, pr->max,
  232            pr->size, flags);
  233         if (r != NULL) {
  234                 pr->resource_addr = (u_long)rman_get_start(r);
  235                 bus_release_resource(bridgedev, pr->type, rid, r);
  236         }
  237         return (0);
  238 }
  239 
  240 /*
  241  *      ioctl calls - Controller specific ioctls
  242  */
  243 static int
  244 mecia_ioctl(struct slot *slt, int cmd, caddr_t data)
  245 {
  246         switch(cmd) {
  247         default:
  248                 return (ENOTTY);
  249         case PIOCSRESOURCE:             /* Can I use this resource? */
  250                 mecia_sresource(slt, data);
  251                 break;
  252         }
  253         return (0);
  254 }
  255 
  256 /*
  257  *      MECIA timer.  If the controller doesn't have a free IRQ to use
  258  *      or if interrupt steering doesn't work, poll the controller for
  259  *      insertion/removal events.
  260  */
  261 static void
  262 meciatimeout(void *chan)
  263 {
  264         meciaintr(chan);
  265         meciatimeout_ch = timeout(meciatimeout, chan, hz/2);
  266 }
  267 
  268 /*
  269  *      MECIA Interrupt handler.
  270  *      Check the slot and report any changes.
  271  */
  272 static void
  273 meciaintr(void *arg)
  274 {
  275         u_char  reg1;
  276         int     s;
  277         struct mecia_slot *sp = (struct mecia_slot *) arg;
  278 
  279         s = splhigh();
  280         /* Check for a card in this slot */
  281         reg1 = inb(MECIA_REG1);
  282         if ((sp->last_reg1 ^ reg1) & MECIA_CARDEXIST) {
  283                 sp->last_reg1 = reg1;
  284                 if (reg1 & MECIA_CARDEXIST)
  285                         pccard_event(sp->slt, card_inserted);
  286                 else
  287                         pccard_event(sp->slt, card_removed);
  288         }
  289         splx(s);
  290 }
  291 
  292 /*
  293  * local functions for PC-98 Original PC-Card controller
  294  */
  295 #define MECIA_ALWAYS_128MAPPING 1       /* trick for using UE2212  */
  296 
  297 int mecia_mode = 0;     /* almost the same as the value in MECIA_REG2 */
  298 
  299 static unsigned char reg_winsel = MECIA_UNMAPWIN;
  300 static unsigned short reg_pagofs = 0;
  301 
  302 static int
  303 mecia_memory(struct slot *slt, int win)
  304 {
  305         struct mem_desc *mp = &slt->mem[win];
  306         unsigned char x;
  307 
  308         if (mp->flags & MDF_ACTIVE) {
  309                 /* slot = 0, window = 0, sys_addr = 0xda000, length = 8KB */
  310                 if ((unsigned long)mp->start != 0xda000) {
  311                         printf(
  312                         "sys_addr must be 0xda000. requested address = %p\n",
  313                         mp->start);
  314                         return (EINVAL);
  315                 }
  316 
  317                 /* omajinai ??? */
  318                 outb(MECIA_REG0, 0);
  319                 x = inb(MECIA_REG1);
  320                 x &= 0xfc;
  321                 x |= 0x02;
  322                 outb(MECIA_REG1, x);
  323                 reg_winsel = inb(MECIA_REG_WINSEL);
  324                 reg_pagofs = inw(MECIA_REG_PAGOFS);
  325                 outb(MECIA_REG_WINSEL, MECIA_MAPWIN);
  326                 outw(MECIA_REG_PAGOFS, (mp->card >> 13)); /* 8KB */
  327 
  328                 if (mp->flags & MDF_ATTR)
  329                         outb(MECIA_REG7, inb(MECIA_REG7) | MECIA_ATTRMEM);
  330                 else
  331                         outb(MECIA_REG7, inb(MECIA_REG7) & (~MECIA_ATTRMEM));
  332 
  333                 outb(MECIA_REG_WINSEL, MECIA_MAPWIN);
  334 #if 0
  335                 if ((mp->flags & MDF_16BITS) == 1)      /* 16bit */
  336                         outb(MECIA_REG2, inb(MECIA_REG2) & (~MECIA_8BIT));
  337                 else                                    /* 8bit */
  338                         outb(MECIA_REG2, inb(MECIA_REG2) | MECIA_8BIT);
  339 #endif
  340         } else {  /* !(mp->flags & MDF_ACTIVE) */
  341                 outb(MECIA_REG0, 0);
  342                 x = inb(MECIA_REG1);
  343                 x &= 0xfc;
  344                 x |= 0x02;
  345                 outb(MECIA_REG1, x);
  346 #if 0
  347                 outb(MECIA_REG_WINSEL, MECIA_UNMAPWIN);
  348                 outw(MECIA_REG_PAGOFS, 0);
  349 #else
  350                 outb(MECIA_REG_WINSEL, reg_winsel);
  351                 outw(MECIA_REG_PAGOFS, reg_pagofs);
  352 #endif
  353         }
  354         return (0);
  355 }
  356 
  357 static int
  358 mecia_io(struct slot *slt, int win)
  359 {
  360         struct io_desc *ip = &slt->io[win];
  361         unsigned char x;
  362         unsigned short cardbase;
  363         u_short ofst;
  364 
  365         if (win != 0) {
  366                 /* ignore for UE2212 */
  367                 printf(
  368                 "mecia:Illegal MECIA I/O window(%d) request! Ignored.\n", win);
  369 /*              return (EINVAL);*/
  370                 return (0);
  371         }
  372 
  373         if (ip->flags & IODF_ACTIVE) {
  374                 x = inb(MECIA_REG2) & 0x0f;
  375 #if 0
  376                 if (! (ip->flags & IODF_CS16))
  377                         x |= MECIA_8BIT;
  378 #else
  379                 if (! (ip->flags & IODF_16BIT)) {
  380                         x |= MECIA_8BIT;
  381                         mecia_mode |= MECIA_8BIT;
  382                 }
  383 #endif
  384 
  385                 ofst = ip->start & 0xf;
  386                 cardbase = ip->start & ~0xf;
  387 #ifndef MECIA_ALWAYS_128MAPPING
  388                 if (ip->size + ofst > 16)
  389 #endif
  390                 {       /* 128bytes mapping */
  391                         x |= MECIA_MAP128;
  392                         mecia_mode |= MECIA_MAP128;
  393                         ofst |= ((cardbase & 0x70) << 4);
  394                         cardbase &= ~0x70;
  395                 }
  396 
  397                 x |= MECIA_MAPIO;
  398                 outb(MECIA_REG2, x);
  399     
  400                 outw(MECIA_REG4, MECIA_IOBASE); /* 98side I/O base */
  401                 outw(MECIA_REG5, cardbase);     /* card side I/O base */
  402 
  403                 if (bootverbose) {
  404                         printf("mecia: I/O mapped 0x%04x(98) -> "
  405                                "0x%04x(Card) and width %d bytes\n",
  406                                 MECIA_IOBASE+ofst, ip->start, ip->size);
  407                         printf("mecia: reg2=0x%02x reg3=0x%02x reg7=0x%02x\n",
  408                                 inb(MECIA_REG2), inb(MECIA_REG3),
  409                                 inb(MECIA_REG7));
  410                         printf("mecia: mode=%d\n", mecia_mode);
  411                 }
  412 
  413                 ip->start = MECIA_IOBASE + ofst;
  414         } else {
  415                 outb(MECIA_REG2, inb(MECIA_REG2) & (~MECIA_MAPIO));
  416                 mecia_mode = 0;
  417         }
  418         return (0);
  419 }
  420 
  421 static int
  422 mecia_power(struct slot *slt)
  423 {
  424         unsigned char reg;
  425 
  426         reg = inb(MECIA_REG7) & (~MECIA_VPP12V);
  427         switch(slt->pwr.vpp) {
  428         default:
  429                 return (EINVAL);
  430         case 50:
  431                 break;
  432         case 120:
  433                 reg |= MECIA_VPP12V;
  434                 break;
  435         }
  436         outb(MECIA_REG7, reg);
  437         DELAY(100*1000);
  438 
  439         reg = inb(MECIA_REG2) & (~MECIA_VCC3P3V);
  440         switch(slt->pwr.vcc) {
  441         default:
  442                 return (EINVAL);
  443         case 33:
  444                 reg |= MECIA_VCC3P3V;
  445                 break;
  446         case 50:
  447                 break;
  448         }
  449         outb(MECIA_REG2, reg);
  450         DELAY(100*1000);
  451         return (0);
  452 }
  453 
  454 static void
  455 mecia_mapirq(struct slot *slt, int irq)
  456 {
  457         u_char x;
  458 
  459         switch (irq) {
  460         case 3:
  461                 x = MECIA_INT0;
  462                 break;
  463         case 5:
  464                 x = MECIA_INT1;
  465                 break;
  466         case 6:
  467                 x = MECIA_INT2;
  468                 break;
  469         case 10:
  470                 x = MECIA_INT4;
  471                 break;
  472         case 12:
  473                 x = MECIA_INT5;
  474                 break;
  475         case 0:         /* disable */
  476                 x = MECIA_INTDISABLE;
  477                 break;
  478         default:
  479                 printf("mecia: illegal irq %d\n", irq);
  480                 return;
  481         }
  482 #ifdef  MECIA_DEBUG
  483         printf("mecia: irq=%d mapped.\n", irq);
  484 #endif
  485         outb(MECIA_REG3, x);
  486 }
  487 
  488 static void
  489 mecia_reset(void *chan)
  490 {
  491         struct slot *slt = chan;
  492 
  493         outb(MECIA_REG0, 0);
  494         outb(MECIA_REG2, inb(MECIA_REG2) & (~MECIA_MAPIO));
  495         outb(MECIA_REG3, MECIA_INTDISABLE);
  496 #if 0
  497 /* mecia_reset() is called after mecia_power() */
  498         outb(MECIA_REG2, inb(MECIA_REG2) & (~MECIA_VCC3P3V));
  499         outb(MECIA_REG7, inb(MECIA_REG7) & (~MECIA_VPP12V));
  500 #endif
  501         outb(MECIA_REG1, 0);
  502 
  503         selwakeuppri(&slt->selp, PZERO);
  504 }
  505 
  506 static void
  507 mecia_disable(struct slot *slt)
  508 {
  509         /* null function */
  510 }
  511 
  512 static void
  513 mecia_resume(struct slot *slt)
  514 {
  515         /* XXX MECIA How ? */
  516 }
  517 
  518 static int
  519 mecia_activate_resource(device_t dev, device_t child, int type, int rid,
  520     struct resource *r)
  521 {
  522         struct pccard_devinfo *devi = device_get_ivars(child);
  523         int err;
  524 
  525         if (dev != device_get_parent(device_get_parent(child)) || devi == NULL)
  526                 return (bus_generic_activate_resource(dev, child, type,
  527                     rid, r));
  528 
  529         switch (type) {
  530         case SYS_RES_IOPORT: {
  531                 struct io_desc *ip;
  532                 ip = &devi->slt->io[rid];
  533                 if (ip->flags == 0) {
  534                         if (rid == 0)
  535                                 ip->flags = IODF_WS | IODF_16BIT | IODF_CS16;
  536                         else
  537                                 ip->flags = devi->slt->io[0].flags;
  538                 }
  539                 ip->flags |= IODF_ACTIVE;
  540                 ip->start = rman_get_start(r);
  541                 ip->size = rman_get_end(r) - rman_get_start(r) + 1;
  542                 err = mecia_cinfo.mapio(devi->slt, rid);
  543                 if (err)
  544                         return (err);
  545                 break;
  546         }
  547         case SYS_RES_IRQ:
  548                 /*
  549                  * We actually defer the activation of the IRQ resource
  550                  * until the interrupt is registered to avoid stray
  551                  * interrupt messages.
  552                  */
  553                 break;
  554         case SYS_RES_MEMORY: {
  555                 struct mem_desc *mp;
  556                 if (rid >= NUM_MEM_WINDOWS)
  557                         return (EINVAL);
  558                 mp = &devi->slt->mem[rid];
  559                 mp->flags |= MDF_ACTIVE;
  560                 mp->start = (caddr_t) rman_get_start(r);
  561                 mp->size = rman_get_end(r) - rman_get_start(r) + 1;
  562                 err = mecia_cinfo.mapmem(devi->slt, rid);
  563                 if (err)
  564                         return (err);
  565                 break;
  566         }
  567         default:
  568                 break;
  569         }
  570         err = bus_generic_activate_resource(dev, child, type, rid, r);
  571         return (err);
  572 }
  573 
  574 static int
  575 mecia_deactivate_resource(device_t dev, device_t child, int type, int rid,
  576     struct resource *r)
  577 {
  578         struct pccard_devinfo *devi = device_get_ivars(child);
  579         int err;
  580 
  581         if (dev != device_get_parent(device_get_parent(child)) || devi == NULL)
  582                 return (bus_generic_deactivate_resource(dev, child, type,
  583                     rid, r));
  584 
  585         switch (type) {
  586         case SYS_RES_IOPORT: {
  587                 struct io_desc *ip = &devi->slt->io[rid];
  588                 ip->flags &= ~IODF_ACTIVE;
  589                 err = mecia_cinfo.mapio(devi->slt, rid);
  590                 if (err)
  591                         return (err);
  592                 break;
  593         }
  594         case SYS_RES_IRQ:
  595                 break;
  596         case SYS_RES_MEMORY: {
  597                 struct mem_desc *mp = &devi->slt->mem[rid];
  598                 mp->flags &= ~(MDF_ACTIVE | MDF_ATTR);
  599                 err = mecia_cinfo.mapmem(devi->slt, rid);
  600                 if (err)
  601                         return (err);
  602                 break;
  603         }
  604         default:
  605                 break;
  606         }
  607         err = bus_generic_deactivate_resource(dev, child, type, rid, r);
  608         return (err);
  609 }
  610 
  611 static int
  612 mecia_setup_intr(device_t dev, device_t child, struct resource *irq,
  613     int flags, driver_intr_t *intr, void *arg, void **cookiep)
  614 {
  615         struct pccard_devinfo *devi = device_get_ivars(child);
  616         int err;
  617 
  618         if (((1 << rman_get_start(irq)) & MECIA_INT_MASK_ALLOWED) == 0) {
  619                 device_printf(dev, "Hardware does not support irq %ld.\n",
  620                     rman_get_start(irq));
  621                 return (EINVAL);
  622         }
  623 
  624         err = bus_generic_setup_intr(dev, child, irq, flags, intr, arg,
  625             cookiep);
  626         if (err == 0)
  627                 mecia_cinfo.mapirq(devi->slt, rman_get_start(irq));
  628         else
  629                 device_printf(dev, "Error %d irq %ld\n", err,
  630                     rman_get_start(irq));
  631         return (err);
  632 }
  633 
  634 static int
  635 mecia_teardown_intr(device_t dev, device_t child, struct resource *irq,
  636     void *cookie)
  637 {
  638         struct pccard_devinfo *devi = device_get_ivars(child);
  639 
  640         mecia_cinfo.mapirq(devi->slt, 0);
  641         return (bus_generic_teardown_intr(dev, child, irq, cookie));
  642 }
  643 
  644 static int
  645 mecia_set_res_flags(device_t bus, device_t child, int restype, int rid,
  646     u_long value)
  647 {
  648         struct pccard_devinfo *devi = device_get_ivars(child);
  649         int err = 0;
  650 
  651         switch (restype) {
  652         case SYS_RES_MEMORY: {
  653                 struct mem_desc *mp = &devi->slt->mem[rid];
  654                 switch (value) {
  655                 case PCCARD_A_MEM_COM:
  656                         mp->flags &= ~MDF_ATTR;
  657                         break;
  658                 case PCCARD_A_MEM_ATTR:
  659                         mp->flags |= MDF_ATTR;
  660                         break;
  661                 case PCCARD_A_MEM_8BIT:
  662                         mp->flags &= ~MDF_16BITS;
  663                         break;
  664                 case PCCARD_A_MEM_16BIT:
  665                         mp->flags |= MDF_16BITS;
  666                         break;
  667                 }
  668                 err = mecia_cinfo.mapmem(devi->slt, rid);
  669                 break;
  670         }
  671         default:
  672                 err = EOPNOTSUPP;
  673         }
  674         return (err);
  675 }
  676 
  677 static int
  678 mecia_get_res_flags(device_t bus, device_t child, int restype, int rid,
  679     u_long *value)
  680 {
  681         struct pccard_devinfo *devi = device_get_ivars(child);
  682         int err = 0;
  683 
  684         if (value == 0)
  685                 return (ENOMEM);
  686 
  687         switch (restype) {
  688         case SYS_RES_IOPORT: {
  689                 struct io_desc *ip = &devi->slt->io[rid];
  690                 *value = ip->flags;
  691                 break;
  692         }
  693         case SYS_RES_MEMORY: {
  694                 struct mem_desc *mp = &devi->slt->mem[rid];
  695                 *value = mp->flags;
  696                 break;
  697         }
  698         default:
  699                 err = EOPNOTSUPP;
  700         }
  701         return (err);
  702 }
  703 
  704 static int
  705 mecia_set_memory_offset(device_t bus, device_t child, int rid,
  706     u_int32_t offset, u_int32_t *deltap)
  707 {
  708         struct pccard_devinfo *devi = device_get_ivars(child);
  709         struct mem_desc *mp = &devi->slt->mem[rid];
  710 
  711         mp->card = offset;
  712         if (deltap)
  713                 *deltap = 0;                    /* XXX BAD XXX */
  714         return (mecia_cinfo.mapmem(devi->slt, rid));
  715 }
  716 
  717 static int
  718 mecia_get_memory_offset(device_t bus, device_t child, int rid,
  719     u_int32_t *offset)
  720 {
  721         struct pccard_devinfo *devi = device_get_ivars(child);
  722         struct mem_desc *mp = &devi->slt->mem[rid];
  723 
  724         if (offset == 0)
  725                 return (ENOMEM);
  726 
  727         *offset = mp->card;
  728 
  729         return (0);
  730 }
  731 
  732 static device_method_t mecia_methods[] = {
  733         /* Device interface */
  734         DEVMETHOD(device_probe,         mecia_probe),
  735         DEVMETHOD(device_attach,        mecia_attach),
  736         DEVMETHOD(device_detach,        bus_generic_detach),
  737         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
  738         DEVMETHOD(device_suspend,       bus_generic_suspend),
  739         DEVMETHOD(device_resume,        bus_generic_resume),
  740 
  741         /* Bus interface */
  742         DEVMETHOD(bus_print_child,      bus_generic_print_child),
  743         DEVMETHOD(bus_alloc_resource,   bus_generic_alloc_resource),
  744         DEVMETHOD(bus_release_resource, bus_generic_release_resource),
  745         DEVMETHOD(bus_activate_resource, mecia_activate_resource),
  746         DEVMETHOD(bus_deactivate_resource, mecia_deactivate_resource),
  747         DEVMETHOD(bus_setup_intr,       mecia_setup_intr),
  748         DEVMETHOD(bus_teardown_intr,    mecia_teardown_intr),
  749 
  750         /* Card interface */
  751         DEVMETHOD(card_set_res_flags,   mecia_set_res_flags),
  752         DEVMETHOD(card_get_res_flags,   mecia_get_res_flags),
  753         DEVMETHOD(card_set_memory_offset, mecia_set_memory_offset),
  754         DEVMETHOD(card_get_memory_offset, mecia_get_memory_offset),
  755 
  756         { 0, 0 }
  757 };
  758 
  759 devclass_t      mecia_devclass;
  760 
  761 static driver_t mecia_driver = {
  762         "mecia",
  763         mecia_methods,
  764         sizeof(struct mecia_slot)
  765 };
  766 
  767 DRIVER_MODULE(mecia, isa, mecia_driver, mecia_devclass, 0, 0);

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