sys/bus/pccard/pccard.c

   1 /*      $NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $     */
   2 /* $FreeBSD: src/sys/dev/pccard/pccard.c,v 1.70 2002/11/14 14:02:32 mux Exp $ */
   3 /* $DragonFly: src/sys/bus/pccard/pccard.c,v 1.14 2005/06/27 02:27:10 swildner Exp $ */
   4
   5 /*
   6  * Copyright (c) 1997 Marc Horowitz.  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  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by Marc Horowitz.
  19  * 4. The name of the author may not be used to endorse or promote products
  20  *    derived from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <sys/param.h>
  35 #include <sys/systm.h>
  36 #include <sys/malloc.h>
  37 #include <sys/module.h>
  38 #include <sys/kernel.h>
  39 #include <sys/queue.h>
  40 #include <sys/sysctl.h>
  41 #include <sys/types.h>
  42
  43 #include <sys/bus.h>
  44 #include <machine/bus.h>
  45 #include <sys/rman.h>
  46 #include <machine/resource.h>
  47
  48 #include <net/ethernet.h>
  49
  50 #include <bus/pccard/pccardreg.h>
  51 #include <bus/pccard/pccardvar.h>
  52
  53 #include "power_if.h"
  54 #include "card_if.h"
  55
  56 #define PCCARDDEBUG
  57
  58 /* sysctl vars */
  59 SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
  60
  61 int     pccard_debug = 0;
  62 TUNABLE_INT("hw.pccard.debug", &pccard_debug);
  63 SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RW,
  64     &pccard_debug, 0,
  65   "pccard debug");
  66
  67 int     pccard_cis_debug = 0;
  68 TUNABLE_INT("hw.pccard.cis_debug", &pccard_cis_debug);
  69 SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RW,
  70     &pccard_cis_debug, 0, "pccard CIS debug");
  71
  72 #ifdef PCCARDDEBUG
  73 #define DPRINTF(arg) if (pccard_debug) printf arg
  74 #define DEVPRINTF(arg) if (pccard_debug) device_printf arg
  75 #define PRVERBOSE(arg) printf arg
  76 #define DEVPRVERBOSE(arg) device_printf arg
  77 #else
  78 #define DPRINTF(arg)
  79 #define DEVPRINTF(arg)
  80 #define PRVERBOSE(arg) if (bootverbose) printf arg
  81 #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
  82 #endif
  83
  84 static int      pccard_ccr_read(struct pccard_function *pf, int ccr);
  85 static void     pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
  86 static int      pccard_attach_card(device_t dev);
  87 static int      pccard_detach_card(device_t dev);
  88 static int      pccard_card_gettype(device_t dev, int *type);
  89 static void     pccard_function_init(struct pccard_function *pf);
  90 static void     pccard_function_free(struct pccard_function *pf);
  91 static int      pccard_function_enable(struct pccard_function *pf);
  92 static void     pccard_function_disable(struct pccard_function *pf);
  93 static int      pccard_compat_do_probe(device_t bus, device_t dev);
  94 static int      pccard_compat_do_attach(device_t bus, device_t dev);
  95 static int      pccard_add_children(device_t dev, int busno);
  96 static int      pccard_probe(device_t dev);
  97 static int      pccard_attach(device_t dev);
  98 static int      pccard_detach(device_t dev);
  99 static void     pccard_print_resources(struct resource_list *rl,
 100                     const char *name, int type, int count, const char *format);
 101 static int      pccard_print_child(device_t dev, device_t child);
 102 static int      pccard_set_resource(device_t dev, device_t child, int type,
 103                     int rid, u_long start, u_long count);
 104 static int      pccard_get_resource(device_t dev, device_t child, int type,
 105                     int rid, u_long *startp, u_long *countp);
 106 static void     pccard_delete_resource(device_t dev, device_t child, int type,
 107                     int rid);
 108 static int      pccard_set_res_flags(device_t dev, device_t child, int type,
 109                     int rid, u_int32_t flags);
 110 static int      pccard_set_memory_offset(device_t dev, device_t child, int rid,
 111                     u_int32_t offset, u_int32_t *deltap);
 112 static void     pccard_probe_nomatch(device_t cbdev, device_t child);
 113 static int      pccard_read_ivar(device_t bus, device_t child, int which,
 114                                  uintptr_t *result);
 115 static void     pccard_driver_added(device_t dev, driver_t *driver);
 116 static struct resource *pccard_alloc_resource(device_t dev,
 117                     device_t child, int type, int *rid, u_long start,
 118                     u_long end, u_long count, u_int flags);
 119 static int      pccard_release_resource(device_t dev, device_t child, int type,
 120                     int rid, struct resource *r);
 121 static void     pccard_child_detached(device_t parent, device_t dev);
 122 static void     pccard_intr(void *arg);
 123 static int      pccard_setup_intr(device_t dev, device_t child,
 124                     struct resource *irq, int flags, driver_intr_t *intr,
 125                     void *arg, void **cookiep, lwkt_serialize_t serializer);
 126 static int      pccard_teardown_intr(device_t dev, device_t child,
 127                     struct resource *r, void *cookie);
 128
 129 static const struct pccard_product *
 130 pccard_do_product_lookup(device_t bus, device_t dev,
 131                          const struct pccard_product *tab, size_t ent_size,
 132                          pccard_product_match_fn matchfn);
 133
 134
 135 static int
 136 pccard_ccr_read(struct pccard_function *pf, int ccr)
 137 {
 138         return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
 139             pf->pf_ccr_offset + ccr));
 140 }
 141
 142 static void
 143 pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
 144 {
 145         if ((pf->ccr_mask) & (1 << (ccr / 2))) {
 146                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
 147                     pf->pf_ccr_offset + ccr, val);
 148         }
 149 }
 150
 151 static int
 152 pccard_attach_card(device_t dev)
 153 {
 154         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 155         struct pccard_function *pf;
 156         struct pccard_ivar *ivar;
 157         device_t child;
 158         int i;
 159
 160         /*
 161          * this is here so that when socket_enable calls gettype, trt happens
 162          */
 163         STAILQ_INIT(&sc->card.pf_head);
 164
 165         DEVPRINTF((dev, "chip_socket_enable\n"));
 166         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 167
 168         DEVPRINTF((dev, "read_cis\n"));
 169         pccard_read_cis(sc);
 170
 171         DEVPRINTF((dev, "check_cis_quirks\n"));
 172         pccard_check_cis_quirks(dev);
 173
 174         /*
 175          * bail now if the card has no functions, or if there was an error in
 176          * the cis.
 177          */
 178
 179         if (sc->card.error) {
 180                 device_printf(dev, "CARD ERROR!\n");
 181                 return (1);
 182         }
 183         if (STAILQ_EMPTY(&sc->card.pf_head)) {
 184                 device_printf(dev, "Card has no functions!\n");
 185                 return (1);
 186         }
 187
 188         if (bootverbose || pccard_debug)
 189                 pccard_print_cis(dev);
 190
 191         DEVPRINTF((dev, "functions scanning\n"));
 192         i = -1;
 193         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 194                 i++;
 195                 if (STAILQ_EMPTY(&pf->cfe_head)) {
 196                         device_printf(dev,
 197                             "Function %d has no config entries.!\n", i);
 198                         continue;
 199                 }
 200                 pf->sc = sc;
 201                 pf->cfe = NULL;
 202                 pf->dev = NULL;
 203         }
 204         DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
 205             pccard_mfc(sc)));
 206
 207         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 208                 if (STAILQ_EMPTY(&pf->cfe_head))
 209                         continue;
 210                 /*
 211                  * In NetBSD, the drivers are responsible for activating
 212                  * each function of a card.  I think that in FreeBSD we
 213                  * want to activate them enough for the usual bus_*_resource
 214                  * routines will do the right thing.  This many mean a
 215                  * departure from the current NetBSD model.
 216                  *
 217                  * This seems to work well in practice for most cards.
 218                  * However, there are two cases that are problematic.
 219                  * If a driver wishes to pick and chose which config
 220                  * entry to use, then this method falls down.  These
 221                  * are usually older cards.  In addition, there are
 222                  * some cards that have multiple hardware units on the
 223                  * cards, but presents only one CIS chain.  These cards
 224                  * are combination cards, but only one of these units
 225                  * can be on at a time.
 226                  */
 227                 ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF,
 228                     M_INTWAIT | M_ZERO);
 229                 child = device_add_child(dev, NULL, -1);
 230                 device_set_ivars(child, ivar);
 231                 ivar->fcn = pf;
 232                 pf->dev = child;
 233                 /*
 234                  * XXX We might want to move the next two lines into
 235                  * XXX the pccard interface layer.  For the moment, this
 236                  * XXX is OK, but some drivers want to pick the config
 237                  * XXX entry to use as well as some address tweaks (mostly
 238                  * XXX due to bugs in decode logic that makes some
 239                  * XXX addresses illegal or broken).
 240                  */
 241                 pccard_function_init(pf);
 242                 if (sc->sc_enabled_count == 0)
 243                         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 244                 if (pccard_function_enable(pf) == 0 &&
 245                     device_probe_and_attach(child) == 0) {
 246                         DEVPRINTF((sc->dev, "function %d CCR at %d "
 247                             "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
 248                             pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
 249                             pccard_ccr_read(pf, 0x00),
 250                         pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
 251                         pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
 252                         pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
 253                         pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
 254                 } else {
 255                         if (pf->cfe != NULL)
 256                                 pccard_function_disable(pf);
 257                 }
 258         }
 259         return (0);
 260 }
 261
 262 static int
 263 pccard_detach_card(device_t dev)
 264 {
 265         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 266         struct pccard_function *pf;
 267         struct pccard_config_entry *cfe;
 268
 269         /*
 270          * We are running on either the PCCARD socket's event thread
 271          * or in user context detaching a device by user request.
 272          */
 273         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 274                 int state = device_get_state(pf->dev);
 275
 276                 if (state == DS_ATTACHED || state == DS_BUSY)
 277                         device_detach(pf->dev);
 278                 if (pf->cfe != NULL)
 279                         pccard_function_disable(pf);
 280                 pccard_function_free(pf);
 281                 device_delete_child(dev, pf->dev);
 282         }
 283         if (sc->sc_enabled_count == 0)
 284                 POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
 285
 286         while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
 287                 while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
 288                         STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
 289                         free(cfe, M_DEVBUF);
 290                 }
 291                 STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
 292                 free(pf, M_DEVBUF);
 293         }
 294         return (0);
 295 }
 296
 297 static const struct pccard_product *
 298 pccard_do_product_lookup(device_t bus, device_t dev,
 299                          const struct pccard_product *tab, size_t ent_size,
 300                          pccard_product_match_fn matchfn)
 301 {
 302         const struct pccard_product *ent;
 303         int matches;
 304         u_int32_t fcn;
 305         u_int32_t vendor;
 306         u_int32_t prod;
 307         const char *vendorstr;
 308         const char *prodstr;
 309
 310 #ifdef DIAGNOSTIC
 311         if (sizeof *ent > ent_size)
 312                 panic("pccard_product_lookup: bogus ent_size %ld",
 313                     (long) ent_size);
 314 #endif
 315         vendor = pccard_get_vendor(dev);
 316         prod = pccard_get_product(dev);
 317         fcn = pccard_get_function_number(dev);
 318         vendorstr = pccard_get_vendor_str(dev);
 319         prodstr = pccard_get_product_str(dev);
 320         for (ent = tab; ent->pp_name != NULL; ent =
 321             (const struct pccard_product *) ((const char *) ent + ent_size)) {
 322                 matches = 1;
 323                 if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
 324                     ent->pp_product == PCCARD_VENDOR_ANY &&
 325                     ent->pp_cis[0] == NULL &&
 326                     ent->pp_cis[1] == NULL) {
 327                         device_printf(dev,
 328                             "Total wildcard entry ignored for %s\n",
 329                             ent->pp_name);
 330                         continue;
 331                 }
 332                 if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
 333                     vendor != ent->pp_vendor)
 334                         matches = 0;
 335                 if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
 336                     prod != ent->pp_product)
 337                         matches = 0;
 338                 if (matches && fcn != ent->pp_expfunc)
 339                         matches = 0;
 340                 if (matches && ent->pp_cis[0] &&
 341                     strcmp(ent->pp_cis[0], vendorstr) != 0)
 342                         matches = 0;
 343                 if (matches && ent->pp_cis[1] &&
 344                     strcmp(ent->pp_cis[1], prodstr) != 0)
 345                         matches = 0;
 346                 /* XXX need to match cis[2] and cis[3] also XXX */
 347                 if (matchfn != NULL)
 348                         matches = (*matchfn)(dev, ent, matches);
 349                 if (matches)
 350                         return (ent);
 351         }
 352         return (NULL);
 353 }
 354
 355 static int
 356 pccard_card_gettype(device_t dev, int *type)
 357 {
 358         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 359         struct pccard_function *pf;
 360
 361         /*
 362          * set the iftype to memory if this card has no functions (not yet
 363          * probed), or only one function, and that is not initialized yet or
 364          * that is memory.
 365          */
 366         pf = STAILQ_FIRST(&sc->card.pf_head);
 367         if (pf == NULL ||
 368             (STAILQ_NEXT(pf, pf_list) == NULL &&
 369             (pf->cfe == NULL || pf->cfe->iftype == PCCARD_IFTYPE_MEMORY)))
 370                 *type = PCCARD_IFTYPE_MEMORY;
 371         else
 372                 *type = PCCARD_IFTYPE_IO;
 373         return (0);
 374 }
 375
 376 /*
 377  * Initialize a PCCARD function.  May be called as long as the function is
 378  * disabled.
 379  *
 380  * Note: pccard_function_init should not keep resources allocated.  It should
 381  * only set them up ala isa pnp, set the values in the rl lists, and return.
 382  * Any resource held after pccard_function_init is called is a bug.  However,
 383  * the bus routines to get the resources also assume that pccard_function_init
 384  * does this, so they need to be fixed too.
 385  */
 386 static void
 387 pccard_function_init(struct pccard_function *pf)
 388 {
 389         struct pccard_config_entry *cfe;
 390         int i;
 391         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 392         struct resource_list *rl = &devi->resources;
 393         struct resource_list_entry *rle;
 394         struct resource *r = 0;
 395         device_t bus;
 396         int start;
 397         int end;
 398         int spaces;
 399
 400         if (pf->pf_flags & PFF_ENABLED) {
 401                 printf("pccard_function_init: function is enabled");
 402                 return;
 403         }
 404         bus = device_get_parent(pf->dev);
 405         /* Remember which configuration entry we are using. */
 406         STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
 407                 for (i = 0; i < cfe->num_iospace; i++)
 408                         cfe->iores[i] = NULL;
 409                 cfe->irqres = NULL;
 410                 spaces = 0;
 411                 for (i = 0; i < cfe->num_iospace; i++) {
 412                         start = cfe->iospace[i].start;
 413                         if (start)
 414                                 end = start + cfe->iospace[i].length - 1;
 415                         else
 416                                 end = ~0;
 417                         cfe->iorid[i] = i;
 418                         DEVPRINTF((bus, "I/O rid %d start %x end %x\n",
 419                             i, start, end));
 420                         r = cfe->iores[i] = bus_alloc_resource(bus,
 421                             SYS_RES_IOPORT, &cfe->iorid[i], start, end,
 422                             cfe->iospace[i].length,
 423                             rman_make_alignment_flags(cfe->iospace[i].length));
 424                         if (cfe->iores[i] == NULL)
 425                                 goto not_this_one;
 426                         resource_list_add(rl, SYS_RES_IOPORT, cfe->iorid[i],
 427                             rman_get_start(r), rman_get_end(r),
 428                             cfe->iospace[i].length);
 429                         rle = resource_list_find(rl, SYS_RES_IOPORT,
 430                             cfe->iorid[i]);
 431                         rle->res = r;
 432                         spaces++;
 433                 }
 434                 if (cfe->num_memspace > 0) {
 435                         /*
 436                          * Not implement yet, Fix me.
 437                          */
 438                         DEVPRINTF((bus, "Memory space not yet implemented.\n"));
 439                 }
 440                 if (spaces == 0) {
 441                         DEVPRINTF((bus, "Neither memory nor I/O mampped\n"));
 442                         goto not_this_one;
 443                 }
 444                 if (cfe->irqmask) {
 445                         cfe->irqrid = 0;
 446                         r = cfe->irqres = bus_alloc_resource(bus, SYS_RES_IRQ,
 447                             &cfe->irqrid, 0, ~0, 1, 0);
 448                         if (cfe->irqres == NULL)
 449                                 goto not_this_one;
 450                         resource_list_add(rl, SYS_RES_IRQ, cfe->irqrid,
 451                             rman_get_start(r), rman_get_end(r), 1);
 452                         rle = resource_list_find(rl, SYS_RES_IRQ,
 453                             cfe->irqrid);
 454                         rle->res = r;
 455                 }
 456                 /* If we get to here, we've allocated all we need */
 457                 pf->cfe = cfe;
 458                 break;
 459             not_this_one:;
 460                 DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
 461                     cfe->number));
 462                 /*
 463                  * Release resources that we partially allocated
 464                  * from this config entry.
 465                  */
 466                 for (i = 0; i < cfe->num_iospace; i++) {
 467                         if (cfe->iores[i] != NULL) {
 468                                 bus_release_resource(bus, SYS_RES_IOPORT,
 469                                     cfe->iorid[i], cfe->iores[i]);
 470                                 rle = resource_list_find(rl, SYS_RES_IOPORT,
 471                                     cfe->iorid[i]);
 472                                 rle->res = NULL;
 473                                 resource_list_delete(rl, SYS_RES_IOPORT,
 474                                     cfe->iorid[i]);
 475                         }
 476                         cfe->iores[i] = NULL;
 477                 }
 478                 if (cfe->irqmask && cfe->irqres != NULL) {
 479                         bus_release_resource(bus, SYS_RES_IRQ,
 480                             cfe->irqrid, cfe->irqres);
 481                         rle = resource_list_find(rl, SYS_RES_IRQ,
 482                             cfe->irqrid);
 483                         rle->res = NULL;
 484                         resource_list_delete(rl, SYS_RES_IRQ, cfe->irqrid);
 485                         cfe->irqres = NULL;
 486                 }
 487         }
 488 }
 489
 490 /*
 491  * Free resources allocated by pccard_function_init(), May be called as long
 492  * as the function is disabled.
 493  *
 494  * NOTE: This function should be unnecessary.  pccard_function_init should
 495  * never keep resources initialized.
 496  */
 497 static void
 498 pccard_function_free(struct pccard_function *pf)
 499 {
 500         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 501         struct resource_list_entry *rle;
 502
 503         if (pf->pf_flags & PFF_ENABLED) {
 504                 printf("pccard_function_init: function is enabled");
 505                 return;
 506         }
 507
 508         SLIST_FOREACH(rle, &devi->resources, link) {
 509                 if (rle->res) {
 510                         if (rle->res->r_dev != pf->sc->dev)
 511                                 device_printf(pf->sc->dev,
 512                                     "function_free: Resource still owned by "
 513                                     "child, oops. "
 514                                     "(type=%d, rid=%d, addr=%lx)\n",
 515                                     rle->type, rle->rid,
 516                                     rman_get_start(rle->res));
 517                         BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
 518                             rle->res->r_dev, rle->type, rle->rid, rle->res);
 519                         rle->res = NULL;
 520                 }
 521         }
 522         resource_list_free(&devi->resources);
 523 }
 524
 525 static void
 526 pccard_mfc_adjust_iobase(struct pccard_function *pf, bus_addr_t addr,
 527                         bus_addr_t offset, bus_size_t size)
 528 {
 529         bus_size_t iosize, tmp;
 530
 531         if (addr != 0) {
 532                 if (pf->pf_mfc_iomax == 0) {
 533                         pf->pf_mfc_iobase = addr + offset;
 534                         pf->pf_mfc_iomax = pf->pf_mfc_iobase  + size;
 535                 } else {
 536                         if (pf->pf_mfc_iobase > addr  + offset)
 537                                 pf->pf_mfc_iobase = addr + offset;
 538                         if (pf->pf_mfc_iomax < addr + offset  + size)
 539                                 pf->pf_mfc_iomax = addr + offset + size;
 540                 }
 541         }
 542         tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
 543         for (iosize = 1; iosize < tmp; iosize <<= 1)
 544                 ;
 545         iosize--;
 546
 547         pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
 548                          pf->pf_mfc_iobase & 0xff);
 549         pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
 550                                  (pf->pf_mfc_iobase >> 8) & 0xff);
 551         pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
 552         pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
 553
 554         pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
 555 }
 556
 557 /* Enable a PCCARD function */
 558 static int
 559 pccard_function_enable(struct pccard_function *pf)
 560 {
 561         struct pccard_function *tmp;
 562         int reg;
 563         device_t dev = pf->sc->dev;
 564
 565         if (pf->cfe == NULL) {
 566                 DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
 567                 return (ENOMEM);
 568         }
 569
 570         /*
 571          * Increase the reference count on the socket, enabling power, if
 572          * necessary.
 573          */
 574         pf->sc->sc_enabled_count++;
 575
 576         if (pf->pf_flags & PFF_ENABLED) {
 577                 /*
 578                  * Don't do anything if we're already enabled.
 579                  */
 580                 return (0);
 581         }
 582
 583         /*
 584          * it's possible for different functions' CCRs to be in the same
 585          * underlying page.  Check for that.
 586          */
 587         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 588                 if ((tmp->pf_flags & PFF_ENABLED) &&
 589                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 590                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 591                     (tmp->ccr_base - tmp->pf_ccr_offset +
 592                     tmp->pf_ccr_realsize))) {
 593                         pf->pf_ccrt = tmp->pf_ccrt;
 594                         pf->pf_ccrh = tmp->pf_ccrh;
 595                         pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
 596
 597                         /*
 598                          * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
 599                          * tmp->ccr_base) + pf->ccr_base;
 600                          */
 601                         /* pf->pf_ccr_offset =
 602                             (tmp->pf_ccr_offset + pf->ccr_base) -
 603                             tmp->ccr_base; */
 604                         pf->pf_ccr_window = tmp->pf_ccr_window;
 605                         break;
 606                 }
 607         }
 608         if (tmp == NULL) {
 609                 pf->ccr_rid = 0;
 610                 pf->ccr_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
 611                     &pf->ccr_rid, 0, ~0, 1 << 10, RF_ACTIVE);
 612                 if (!pf->ccr_res)
 613                         goto bad;
 614                 DEVPRINTF((dev, "ccr_res == %lx-%lx, base=%x\n",
 615                     rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
 616                     pf->ccr_base));
 617                 CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
 618                     pf->ccr_rid, PCCARD_A_MEM_ATTR);
 619                 CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
 620                     pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
 621                 pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
 622                 pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
 623                 pf->pf_ccr_realsize = 1;
 624         }
 625
 626         reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
 627         reg |= PCCARD_CCR_OPTION_LEVIREQ;
 628         if (pccard_mfc(pf->sc)) {
 629                 reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
 630                         PCCARD_CCR_OPTION_ADDR_DECODE);
 631                 /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
 632         }
 633         pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
 634
 635         reg = 0;
 636         if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
 637                 reg |= PCCARD_CCR_STATUS_IOIS8;
 638         if (pf->cfe->flags & PCCARD_CFE_AUDIO)
 639                 reg |= PCCARD_CCR_STATUS_AUDIO;
 640         pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
 641
 642         pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
 643
 644         if (pccard_mfc(pf->sc))
 645                 pccard_mfc_adjust_iobase(pf, 0, 0, 0);
 646
 647 #ifdef PCCARDDEBUG
 648         if (pccard_debug) {
 649                 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 650                         device_printf(tmp->sc->dev,
 651                             "function %d CCR at %d offset %x: "
 652                             "%x %x %x %x, %x %x %x %x, %x\n",
 653                             tmp->number, tmp->pf_ccr_window,
 654                             tmp->pf_ccr_offset,
 655                             pccard_ccr_read(tmp, 0x00),
 656                             pccard_ccr_read(tmp, 0x02),
 657                             pccard_ccr_read(tmp, 0x04),
 658                             pccard_ccr_read(tmp, 0x06),
 659                             pccard_ccr_read(tmp, 0x0A),
 660                             pccard_ccr_read(tmp, 0x0C),
 661                             pccard_ccr_read(tmp, 0x0E),
 662                             pccard_ccr_read(tmp, 0x10),
 663                             pccard_ccr_read(tmp, 0x12));
 664                 }
 665         }
 666 #endif
 667         pf->pf_flags |= PFF_ENABLED;
 668         return (0);
 669
 670  bad:
 671         /*
 672          * Decrement the reference count, and power down the socket, if
 673          * necessary.
 674          */
 675         pf->sc->sc_enabled_count--;
 676         DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
 677
 678         return (1);
 679 }
 680
 681 /* Disable PCCARD function. */
 682 static void
 683 pccard_function_disable(struct pccard_function *pf)
 684 {
 685         struct pccard_function *tmp;
 686         device_t dev = pf->sc->dev;
 687
 688         if (pf->cfe == NULL)
 689                 panic("pccard_function_disable: function not initialized");
 690
 691         if ((pf->pf_flags & PFF_ENABLED) == 0) {
 692                 /*
 693                  * Don't do anything if we're already disabled.
 694                  */
 695                 return;
 696         }
 697
 698         if (pf->intr_handler != NULL) {
 699                 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 700                 struct resource_list_entry *rle =
 701                     resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
 702                 BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
 703                     pf->intr_handler_cookie);
 704         }
 705
 706         /*
 707          * it's possible for different functions' CCRs to be in the same
 708          * underlying page.  Check for that.  Note we mark us as disabled
 709          * first to avoid matching ourself.
 710          */
 711
 712         pf->pf_flags &= ~PFF_ENABLED;
 713         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 714                 if ((tmp->pf_flags & PFF_ENABLED) &&
 715                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 716                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 717                     (tmp->ccr_base - tmp->pf_ccr_offset +
 718                     tmp->pf_ccr_realsize)))
 719                         break;
 720         }
 721
 722         /* Not used by anyone else; unmap the CCR. */
 723         if (tmp == NULL) {
 724                 bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
 725                     pf->ccr_res);
 726                 pf->ccr_res = NULL;
 727         }
 728
 729         /*
 730          * Decrement the reference count, and power down the socket, if
 731          * necessary.
 732          */
 733         pf->sc->sc_enabled_count--;
 734 }
 735
 736 /*
 737  * simulate the old "probe" routine.  In the new world order, the driver
 738  * needs to grab devices while in the old they were assigned to the device by
 739  * the pccardd process.  These symbols are exported to the upper layers.
 740  */
 741 static int
 742 pccard_compat_do_probe(device_t bus, device_t dev)
 743 {
 744         return (CARD_COMPAT_MATCH(dev));
 745 }
 746
 747 static int
 748 pccard_compat_do_attach(device_t bus, device_t dev)
 749 {
 750         int err;
 751
 752         err = CARD_COMPAT_PROBE(dev);
 753         if (err == 0)
 754                 err = CARD_COMPAT_ATTACH(dev);
 755         return (err);
 756 }
 757
 758 #define PCCARD_NPORT    2
 759 #define PCCARD_NMEM     5
 760 #define PCCARD_NIRQ     1
 761 #define PCCARD_NDRQ     0
 762
 763 static int
 764 pccard_add_children(device_t dev, int busno)
 765 {
 766         /* Call parent to scan for any current children */
 767         return (0);
 768 }
 769
 770 static int
 771 pccard_probe(device_t dev)
 772 {
 773         device_set_desc(dev, "16-bit PCCard bus");
 774         return (pccard_add_children(dev, device_get_unit(dev)));
 775 }
 776
 777 static int
 778 pccard_attach(device_t dev)
 779 {
 780         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 781
 782         sc->dev = dev;
 783         sc->sc_enabled_count = 0;
 784         return (bus_generic_attach(dev));
 785 }
 786
 787 static int
 788 pccard_detach(device_t dev)
 789 {
 790         pccard_detach_card(dev);
 791         return 0;
 792 }
 793
 794 static int
 795 pccard_suspend(device_t self)
 796 {
 797         pccard_detach_card(self);
 798         return (0);
 799 }
 800
 801 static int
 802 pccard_shutdown(device_t self)
 803 {
 804         pccard_detach_card(self);
 805         bus_generic_shutdown(self);
 806         return (0);
 807 }
 808
 809 static int
 810 pccard_resume(device_t self)
 811 {
 812         return (0);
 813 }
 814
 815 static void
 816 pccard_print_resources(struct resource_list *rl, const char *name, int type,
 817     int count, const char *format)
 818 {
 819         struct resource_list_entry *rle;
 820         int printed;
 821         int i;
 822
 823         printed = 0;
 824         for (i = 0; i < count; i++) {
 825                 rle = resource_list_find(rl, type, i);
 826                 if (rle != NULL) {
 827                         if (printed == 0)
 828                                 printf(" %s ", name);
 829                         else if (printed > 0)
 830                                 printf(",");
 831                         printed++;
 832                         printf(format, rle->start);
 833                         if (rle->count > 1) {
 834                                 printf("-");
 835                                 printf(format, rle->start + rle->count - 1);
 836                         }
 837                 } else if (i > 3) {
 838                         /* check the first few regardless */
 839                         break;
 840                 }
 841         }
 842 }
 843
 844 static int
 845 pccard_print_child(device_t dev, device_t child)
 846 {
 847         struct pccard_ivar *devi = PCCARD_IVAR(child);
 848         struct resource_list *rl = &devi->resources;
 849         int retval = 0;
 850
 851         retval += bus_print_child_header(dev, child);
 852         retval += printf(" at");
 853
 854         if (devi != NULL) {
 855                 pccard_print_resources(rl, "port", SYS_RES_IOPORT,
 856                     PCCARD_NPORT, "%#lx");
 857                 pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
 858                     PCCARD_NMEM, "%#lx");
 859                 pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
 860                     "%ld");
 861                 pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
 862                     "%ld");
 863                 retval += printf(" function %d config %d", devi->fcn->number,
 864                     devi->fcn->cfe->number);
 865         }
 866
 867         retval += bus_print_child_footer(dev, child);
 868
 869         return (retval);
 870 }
 871
 872 static int
 873 pccard_set_resource(device_t dev, device_t child, int type, int rid,
 874                  u_long start, u_long count)
 875 {
 876         struct pccard_ivar *devi = PCCARD_IVAR(child);
 877         struct resource_list *rl = &devi->resources;
 878
 879         if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
 880             && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
 881                 return (EINVAL);
 882         if (rid < 0)
 883                 return (EINVAL);
 884         if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
 885                 return (EINVAL);
 886         if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
 887                 return (EINVAL);
 888         if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
 889                 return (EINVAL);
 890         if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
 891                 return (EINVAL);
 892
 893         resource_list_add(rl, type, rid, start, start + count - 1, count);
 894         if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
 895             type, &rid, start, start + count - 1, count, 0))
 896                 return 0;
 897         else
 898                 return ENOMEM;
 899 }
 900
 901 static int
 902 pccard_get_resource(device_t dev, device_t child, int type, int rid,
 903     u_long *startp, u_long *countp)
 904 {
 905         struct pccard_ivar *devi = PCCARD_IVAR(child);
 906         struct resource_list *rl = &devi->resources;
 907         struct resource_list_entry *rle;
 908
 909         rle = resource_list_find(rl, type, rid);
 910         if (rle == NULL)
 911                 return (ENOENT);
 912
 913         if (startp != NULL)
 914                 *startp = rle->start;
 915         if (countp != NULL)
 916                 *countp = rle->count;
 917
 918         return (0);
 919 }
 920
 921 static void
 922 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
 923 {
 924         struct pccard_ivar *devi = PCCARD_IVAR(child);
 925         struct resource_list *rl = &devi->resources;
 926         resource_list_delete(rl, type, rid);
 927 }
 928
 929 static int
 930 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
 931     u_int32_t flags)
 932 {
 933         return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
 934             rid, flags));
 935 }
 936
 937 static int
 938 pccard_set_memory_offset(device_t dev, device_t child, int rid,
 939     u_int32_t offset, u_int32_t *deltap)
 940
 941 {
 942         return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
 943             offset, deltap));
 944 }
 945
 946 static void
 947 pccard_probe_nomatch(device_t bus, device_t child)
 948 {
 949         struct pccard_ivar *devi = PCCARD_IVAR(child);
 950         struct pccard_function *func = devi->fcn;
 951         struct pccard_softc *sc = PCCARD_SOFTC(bus);
 952
 953         device_printf(bus, "<unknown card>");
 954         printf(" (manufacturer=0x%04x, product=0x%04x) at function %d\n",
 955           sc->card.manufacturer, sc->card.product, func->number);
 956         device_printf(bus, "   CIS info: %s, %s, %s\n", sc->card.cis1_info[0],
 957           sc->card.cis1_info[1], sc->card.cis1_info[2]);
 958         return;
 959 }
 960
 961 static int
 962 pccard_child_location_str(device_t bus, device_t child, char *buf,
 963     size_t buflen)
 964 {
 965         struct pccard_ivar *devi = PCCARD_IVAR(child);
 966         struct pccard_function *func = devi->fcn;
 967
 968         snprintf(buf, buflen, "function=%d", func->number);
 969         return (0);
 970 }
 971
 972 static int
 973 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
 974     size_t buflen)
 975 {
 976         struct pccard_ivar *devi = PCCARD_IVAR(child);
 977         struct pccard_function *func = devi->fcn;
 978         struct pccard_softc *sc = PCCARD_SOFTC(bus);
 979
 980         snprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x "
 981             "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d",
 982             sc->card.manufacturer, sc->card.product, sc->card.cis1_info[0],
 983             sc->card.cis1_info[1], func->function);
 984         return (0);
 985 }
 986
 987 static int
 988 pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result)
 989 {
 990         struct pccard_ivar *devi = PCCARD_IVAR(child);
 991         struct pccard_function *func = devi->fcn;
 992         struct pccard_softc *sc = PCCARD_SOFTC(bus);
 993
 994         switch (which) {
 995         default:
 996         case PCCARD_IVAR_ETHADDR:
 997                 *result = (uintptr_t)func->pf_funce_lan_nid;
 998                 break;
 999         case PCCARD_IVAR_VENDOR:
1000                 *result = sc->card.manufacturer;
1001                 break;
1002         case PCCARD_IVAR_PRODUCT:
1003                 *result = sc->card.product;
1004                 break;
1005         case PCCARD_IVAR_PRODEXT:
1006                 *result = sc->card.prodext;
1007                 break;
1008         case PCCARD_IVAR_FUNCTION:
1009                 *result = func->function;
1010                 break;
1011         case PCCARD_IVAR_FUNCTION_NUMBER:
1012                 if (!func) {
1013                         device_printf(bus, "No function number, bug!\n");
1014                         return (ENOENT);
1015                 }
1016                 *result = func->number;
1017                 break;
1018         case PCCARD_IVAR_VENDOR_STR:
1019                 *result = (uintptr_t)sc->card.cis1_info[0];
1020                 break;
1021         case PCCARD_IVAR_PRODUCT_STR:
1022                 *result = (uintptr_t)sc->card.cis1_info[1];
1023                 break;
1024         case PCCARD_IVAR_CIS3_STR:
1025                 *result = (uintptr_t)sc->card.cis1_info[2];
1026                 break;
1027         case PCCARD_IVAR_CIS4_STR:
1028                 *result = (uintptr_t)sc->card.cis1_info[3];
1029                 break;
1030         }
1031         return (0);
1032 }
1033
1034 static void
1035 pccard_driver_added(device_t dev, driver_t *driver)
1036 {
1037         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1038         struct pccard_function *pf;
1039         device_t child;
1040
1041         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1042                 if (STAILQ_EMPTY(&pf->cfe_head))
1043                         continue;
1044                 child = pf->dev;
1045                 if (device_get_state(child) != DS_NOTPRESENT)
1046                         continue;
1047                 if (pccard_function_enable(pf) == 0 &&
1048                     device_probe_and_attach(child) == 0) {
1049                         DEVPRINTF((sc->dev, "function %d CCR at %d "
1050                             "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
1051                             pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
1052                             pccard_ccr_read(pf, 0x00),
1053                         pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
1054                         pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
1055                         pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
1056                         pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
1057                 } else {
1058                         if (pf->cfe != NULL)
1059                                 pccard_function_disable(pf);
1060                 }
1061         }
1062         return;
1063 }
1064
1065 static struct resource *
1066 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1067     u_long start, u_long end, u_long count, u_int flags)
1068 {
1069         struct pccard_ivar *dinfo;
1070         struct resource_list_entry *rle = 0;
1071         int passthrough = (device_get_parent(child) != dev);
1072         int isdefault = (start == 0 && end == ~0UL && count == 1);
1073         struct resource *r = NULL;
1074
1075
1076         if (passthrough) {
1077                 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1078                     type, rid, start, end, count, flags));
1079         }
1080
1081         dinfo = device_get_ivars(child);
1082         rle = resource_list_find(&dinfo->resources, type, *rid);
1083
1084         if (rle == NULL && isdefault)
1085                 return (NULL);          /* no resource of that type/rid */
1086
1087         if ((rle == NULL) || (rle->res == NULL)) {
1088
1089                 r = bus_alloc_resource(dev, type, rid, start, end,
1090                             count, rman_make_alignment_flags(count));
1091                 if (r == NULL)
1092                         goto bad;
1093                 resource_list_add(&dinfo->resources, type, *rid,
1094                             rman_get_start(r), rman_get_end(r), count);
1095                 rle = resource_list_find(&dinfo->resources, type, *rid);
1096                 if (!rle)
1097                         goto bad;
1098                 rle->res = r;
1099         }
1100         if (rle->res->r_dev != dev)
1101                 return (NULL);
1102         bus_release_resource(dev, type, *rid, rle->res);
1103         rle->res = NULL;
1104         switch(type) {
1105         case SYS_RES_IOPORT:
1106         case SYS_RES_MEMORY:
1107                 if (!(flags & RF_ALIGNMENT_MASK))
1108                         flags |= rman_make_alignment_flags(rle->count);
1109                 break;
1110         case SYS_RES_IRQ:
1111                 flags |= RF_SHAREABLE;
1112                 break;
1113         }
1114         rle->res = resource_list_alloc(&dinfo->resources, dev, child,
1115             type, rid, rle->start, rle->end, rle->count, flags);
1116         return (rle->res);
1117 bad:;
1118         device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1119         return (NULL);
1120 }
1121
1122 static int
1123 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1124     struct resource *r)
1125 {
1126         struct pccard_ivar *dinfo;
1127         int passthrough = (device_get_parent(child) != dev);
1128         struct resource_list_entry *rle = 0;
1129         int ret;
1130         int flags;
1131
1132         if (passthrough)
1133                 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1134                     type, rid, r);
1135
1136         dinfo = device_get_ivars(child);
1137
1138         rle = resource_list_find(&dinfo->resources, type, rid);
1139
1140         if (!rle) {
1141                 device_printf(dev, "Allocated resource not found, "
1142                     "%d %x %lx %lx\n",
1143                     type, rid, rman_get_start(r), rman_get_size(r));
1144                 return ENOENT;
1145         }
1146         if (!rle->res) {
1147                 device_printf(dev, "Allocated resource not recorded\n");
1148                 return ENOENT;
1149         }
1150
1151         ret = BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1152             type, rid, r);
1153         switch(type) {
1154         case SYS_RES_IOPORT:
1155         case SYS_RES_MEMORY:
1156                 flags = rman_make_alignment_flags(rle->count);
1157                 break;
1158         case SYS_RES_IRQ:
1159                 flags = RF_SHAREABLE;
1160                 break;
1161         default:
1162                 flags = 0;
1163         }
1164         rle->res = bus_alloc_resource(dev, type, &rid,
1165             rle->start, rle->end, rle->count, flags);
1166         if (rle->res == NULL)
1167                 device_printf(dev, "release_resource: "
1168                     "unable to reaquire resource\n");
1169         return ret;
1170 }
1171
1172 static void
1173 pccard_child_detached(device_t parent, device_t dev)
1174 {
1175         struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1176         struct pccard_function *pf = ivar->fcn;
1177
1178         pccard_function_disable(pf);
1179 }
1180
1181 static void
1182 pccard_intr(void *arg)
1183 {
1184         struct pccard_function *pf = (struct pccard_function*) arg;
1185         int reg;
1186         int doisr = 1;
1187
1188         /*
1189          * MFC cards know if they interrupted, so we have to ack the
1190          * interrupt and call the ISR.  Non-MFC cards don't have these
1191          * bits, so they always get called.  Many non-MFC cards have
1192          * this bit set always upon read, but some do not.
1193          *
1194          * We always ack the interrupt, even if there's no ISR
1195          * for the card.  This is done on the theory that acking
1196          * the interrupt will pacify the card enough to keep an
1197          * interrupt storm from happening.  Of course this won't
1198          * help in the non-MFC case.
1199          */
1200         if (pccard_mfc(pf->sc)) {
1201                 reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1202                 if (reg & PCCARD_CCR_STATUS_INTR)
1203                         pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1204                             reg & ~PCCARD_CCR_STATUS_INTR);
1205                 else
1206                         doisr = 0;
1207         }
1208         if (pf->intr_handler != NULL && doisr)
1209                 pf->intr_handler(pf->intr_handler_arg);
1210 }
1211
1212 static int
1213 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1214     int flags, driver_intr_t *intr, void *arg,
1215     void **cookiep, lwkt_serialize_t serializer)
1216 {
1217         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1218         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1219         struct pccard_function *func = ivar->fcn;
1220         int err;
1221
1222         if (func->intr_handler != NULL)
1223                 panic("Only one interrupt handler per function allowed");
1224         err = bus_generic_setup_intr(dev, child, irq, flags, pccard_intr,
1225                                      func, cookiep, NULL);
1226         if (err != 0)
1227                 return (err);
1228         func->intr_handler = intr;
1229         func->intr_handler_arg = arg;
1230         func->intr_handler_cookie = *cookiep;
1231         if (pccard_mfc(sc)) {
1232                 pccard_ccr_write(func, PCCARD_CCR_OPTION,
1233                     pccard_ccr_read(func, PCCARD_CCR_OPTION) |
1234                     PCCARD_CCR_OPTION_IREQ_ENABLE);
1235         }
1236         return (0);
1237 }
1238
1239 static int
1240 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1241     void *cookie)
1242 {
1243         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1244         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1245         struct pccard_function *func = ivar->fcn;
1246         int ret;
1247
1248         if (pccard_mfc(sc)) {
1249                 pccard_ccr_write(func, PCCARD_CCR_OPTION,
1250                     pccard_ccr_read(func, PCCARD_CCR_OPTION) &
1251                     ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1252         }
1253         ret = bus_generic_teardown_intr(dev, child, r, cookie);
1254         if (ret == 0) {
1255                 func->intr_handler = NULL;
1256                 func->intr_handler_arg = NULL;
1257                 func->intr_handler_cookie = NULL;
1258         }
1259
1260         return (ret);
1261 }
1262
1263 static int
1264 pccard_activate_resource(device_t brdev, device_t child, int type,
1265                         int rid, struct resource *r)
1266 {
1267         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1268         struct pccard_function *pf = ivar->fcn;
1269
1270         switch(type) {
1271         case SYS_RES_IOPORT:
1272                 if (pccard_mfc(pf->sc))
1273                         pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1274                                         rman_get_size(r));
1275                 break;
1276         default:
1277                 break;
1278         }
1279         return (bus_generic_activate_resource(brdev, child, type, rid, r));
1280 }
1281
1282
1283 static device_method_t pccard_methods[] = {
1284         /* Device interface */
1285         DEVMETHOD(device_probe,         pccard_probe),
1286         DEVMETHOD(device_attach,        pccard_attach),
1287         DEVMETHOD(device_detach,        pccard_detach),
1288         DEVMETHOD(device_shutdown,      pccard_shutdown),
1289         DEVMETHOD(device_suspend,       pccard_suspend),
1290         DEVMETHOD(device_resume,        pccard_resume),
1291
1292         /* Bus interface */
1293         DEVMETHOD(bus_print_child,      pccard_print_child),
1294         DEVMETHOD(bus_driver_added,     pccard_driver_added),
1295         DEVMETHOD(bus_child_detached,   pccard_child_detached),
1296         DEVMETHOD(bus_alloc_resource,   pccard_alloc_resource),
1297         DEVMETHOD(bus_release_resource, pccard_release_resource),
1298         DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1299         DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
1300         DEVMETHOD(bus_setup_intr,       pccard_setup_intr),
1301         DEVMETHOD(bus_teardown_intr,    pccard_teardown_intr),
1302         DEVMETHOD(bus_set_resource,     pccard_set_resource),
1303         DEVMETHOD(bus_get_resource,     pccard_get_resource),
1304         DEVMETHOD(bus_delete_resource,  pccard_delete_resource),
1305         DEVMETHOD(bus_probe_nomatch,    pccard_probe_nomatch),
1306         DEVMETHOD(bus_read_ivar,        pccard_read_ivar),
1307         DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1308         DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1309
1310         /* Card Interface */
1311         DEVMETHOD(card_set_res_flags,   pccard_set_res_flags),
1312         DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1313         DEVMETHOD(card_get_type,        pccard_card_gettype),
1314         DEVMETHOD(card_attach_card,     pccard_attach_card),
1315         DEVMETHOD(card_detach_card,     pccard_detach_card),
1316         DEVMETHOD(card_compat_do_probe, pccard_compat_do_probe),
1317         DEVMETHOD(card_compat_do_attach, pccard_compat_do_attach),
1318         DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1319
1320         { 0, 0 }
1321 };
1322
1323 static driver_t pccard_driver = {
1324         "pccard",
1325         pccard_methods,
1326         sizeof(struct pccard_softc)
1327 };
1328
1329 devclass_t      pccard_devclass;
1330
1331 /* Maybe we need to have a slot device? */
1332 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
1333 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
1334 DRIVER_MODULE(pccard, tcic, pccard_driver, pccard_devclass, 0, 0);
1335 MODULE_VERSION(pccard, 1);
1336 /*MODULE_DEPEND(pccard, pcic, 1, 1, 1);*/