sys/dev/pccard/pccard.c

   1 /*      $NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $     */
   2
   3 /*-
   4  * SPDX-License-Identifier: BSD-4-Clause
   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/cdefs.h>
  35 __FBSDID("$FreeBSD$");
  36
  37 #include <sys/param.h>
  38 #include <sys/systm.h>
  39 #include <sys/malloc.h>
  40 #include <sys/module.h>
  41 #include <sys/kernel.h>
  42 #include <sys/queue.h>
  43 #include <sys/sbuf.h>
  44 #include <sys/sysctl.h>
  45 #include <sys/types.h>
  46
  47 #include <sys/bus.h>
  48 #include <machine/bus.h>
  49 #include <sys/rman.h>
  50 #include <machine/resource.h>
  51
  52 #include <net/ethernet.h>
  53
  54 #include <dev/pccard/pccardreg.h>
  55 #include <dev/pccard/pccardvar.h>
  56 #include <dev/pccard/pccardvarp.h>
  57 #include <dev/pccard/pccard_cis.h>
  58
  59 #include "power_if.h"
  60 #include "card_if.h"
  61
  62 #define PCCARDDEBUG
  63
  64 /* sysctl vars */
  65 static SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
  66
  67 int     pccard_debug = 0;
  68 SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RWTUN,
  69     &pccard_debug, 0,
  70   "pccard debug");
  71
  72 int     pccard_cis_debug = 0;
  73 SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RWTUN,
  74     &pccard_cis_debug, 0, "pccard CIS debug");
  75
  76 #ifdef PCCARDDEBUG
  77 #define DPRINTF(arg) if (pccard_debug) printf arg
  78 #define DEVPRINTF(arg) if (pccard_debug) device_printf arg
  79 #define PRVERBOSE(arg) printf arg
  80 #define DEVPRVERBOSE(arg) device_printf arg
  81 #else
  82 #define DPRINTF(arg)
  83 #define DEVPRINTF(arg)
  84 #define PRVERBOSE(arg) if (bootverbose) printf arg
  85 #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
  86 #endif
  87
  88 static int      pccard_ccr_read(struct pccard_function *pf, int ccr);
  89 static void     pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
  90 static int      pccard_attach_card(device_t dev);
  91 static int      pccard_detach_card(device_t dev);
  92 static void     pccard_function_init(struct pccard_function *pf, int entry);
  93 static void     pccard_function_free(struct pccard_function *pf);
  94 static int      pccard_function_enable(struct pccard_function *pf);
  95 static void     pccard_function_disable(struct pccard_function *pf);
  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, rman_res_t start, rman_res_t count);
 104 static int      pccard_get_resource(device_t dev, device_t child, int type,
 105                     int rid, rman_res_t *startp, rman_res_t *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_long flags);
 110 static int      pccard_set_memory_offset(device_t dev, device_t child, int rid,
 111                     uint32_t offset, uint32_t *deltap);
 112 static int      pccard_probe_and_attach_child(device_t dev, device_t child,
 113                     struct pccard_function *pf);
 114 static void     pccard_probe_nomatch(device_t cbdev, device_t child);
 115 static int      pccard_read_ivar(device_t bus, device_t child, int which,
 116                     uintptr_t *result);
 117 static void     pccard_driver_added(device_t dev, driver_t *driver);
 118 static struct resource *pccard_alloc_resource(device_t dev,
 119                     device_t child, int type, int *rid, rman_res_t start,
 120                     rman_res_t end, rman_res_t count, u_int flags);
 121 static int      pccard_release_resource(device_t dev, device_t child, int type,
 122                     int rid, struct resource *r);
 123 static void     pccard_child_detached(device_t parent, device_t dev);
 124 static int      pccard_filter(void *arg);
 125 static void     pccard_intr(void *arg);
 126 static int      pccard_setup_intr(device_t dev, device_t child,
 127                     struct resource *irq, int flags, driver_filter_t *filt,
 128                     driver_intr_t *intr, void *arg, void **cookiep);
 129 static int      pccard_teardown_intr(device_t dev, device_t child,
 130                     struct resource *r, void *cookie);
 131
 132 static const struct pccard_product *
 133 pccard_do_product_lookup(device_t bus, device_t dev,
 134                          const struct pccard_product *tab, size_t ent_size,
 135                          pccard_product_match_fn matchfn);
 136
 137
 138 static int
 139 pccard_ccr_read(struct pccard_function *pf, int ccr)
 140 {
 141         return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
 142             pf->pf_ccr_offset + ccr));
 143 }
 144
 145 static void
 146 pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
 147 {
 148         if ((pf->ccr_mask) & (1 << (ccr / 2))) {
 149                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
 150                     pf->pf_ccr_offset + ccr, val);
 151         }
 152 }
 153
 154 static int
 155 pccard_set_default_descr(device_t dev)
 156 {
 157         const char *vendorstr, *prodstr;
 158         uint32_t vendor, prod;
 159         char *str;
 160
 161         if (pccard_get_vendor_str(dev, &vendorstr))
 162                 return (0);
 163         if (pccard_get_product_str(dev, &prodstr))
 164                 return (0);
 165         if (vendorstr != NULL && prodstr != NULL) {
 166                 str = malloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF,
 167                     M_WAITOK);
 168                 sprintf(str, "%s %s", vendorstr, prodstr);
 169                 device_set_desc_copy(dev, str);
 170                 free(str, M_DEVBUF);
 171         } else {
 172                 if (pccard_get_vendor(dev, &vendor))
 173                         return (0);
 174                 if (pccard_get_product(dev, &prod))
 175                         return (0);
 176                 str = malloc(100, M_DEVBUF, M_WAITOK);
 177                 snprintf(str, 100, "vendor=%#x product=%#x", vendor, prod);
 178                 device_set_desc_copy(dev, str);
 179                 free(str, M_DEVBUF);
 180         }
 181         return (0);
 182 }
 183
 184 static int
 185 pccard_attach_card(device_t dev)
 186 {
 187         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 188         struct pccard_function *pf;
 189         struct pccard_ivar *ivar;
 190         device_t child;
 191         int i;
 192
 193         if (!STAILQ_EMPTY(&sc->card.pf_head)) {
 194                 if (bootverbose || pccard_debug)
 195                         device_printf(dev, "Card already inserted.\n");
 196         }
 197
 198         DEVPRINTF((dev, "chip_socket_enable\n"));
 199         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 200
 201         DEVPRINTF((dev, "read_cis\n"));
 202         pccard_read_cis(sc);
 203
 204         DEVPRINTF((dev, "check_cis_quirks\n"));
 205         pccard_check_cis_quirks(dev);
 206
 207         /*
 208          * bail now if the card has no functions, or if there was an error in
 209          * the cis.
 210          */
 211
 212         if (sc->card.error) {
 213                 device_printf(dev, "CARD ERROR!\n");
 214                 return (1);
 215         }
 216         if (STAILQ_EMPTY(&sc->card.pf_head)) {
 217                 device_printf(dev, "Card has no functions!\n");
 218                 return (1);
 219         }
 220
 221         if (bootverbose || pccard_debug)
 222                 pccard_print_cis(dev);
 223
 224         DEVPRINTF((dev, "functions scanning\n"));
 225         i = -1;
 226         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 227                 i++;
 228                 if (STAILQ_EMPTY(&pf->cfe_head)) {
 229                         device_printf(dev,
 230                             "Function %d has no config entries.!\n", i);
 231                         continue;
 232                 }
 233                 pf->sc = sc;
 234                 pf->cfe = NULL;
 235                 pf->dev = NULL;
 236         }
 237         DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
 238             pccard_mfc(sc)));
 239
 240         mtx_lock(&Giant);
 241         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 242                 if (STAILQ_EMPTY(&pf->cfe_head))
 243                         continue;
 244                 ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF,
 245                     M_WAITOK | M_ZERO);
 246                 resource_list_init(&ivar->resources);
 247                 child = device_add_child(dev, NULL, -1);
 248                 device_set_ivars(child, ivar);
 249                 ivar->pf = pf;
 250                 pf->dev = child;
 251                 pccard_probe_and_attach_child(dev, child, pf);
 252         }
 253         mtx_unlock(&Giant);
 254         return (0);
 255 }
 256
 257 static int
 258 pccard_probe_and_attach_child(device_t dev, device_t child,
 259     struct pccard_function *pf)
 260 {
 261         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 262         int error;
 263
 264         /*
 265          * In NetBSD, the drivers are responsible for activating each
 266          * function of a card and selecting the config to use.  In
 267          * FreeBSD, all that's done automatically in the typical lazy
 268          * way we do device resoruce allocation (except we pick the
 269          * cfe up front).  This is the biggest depature from the
 270          * inherited NetBSD model, apart from the FreeBSD resource code.
 271          *
 272          * This seems to work well in practice for most cards.
 273          * However, there are two cases that are problematic.  If a
 274          * driver wishes to pick and chose which config entry to use,
 275          * then this method falls down.  These are usually older
 276          * cards.  In addition, there are some cards that have
 277          * multiple hardware units on the cards, but presents only one
 278          * CIS chain.  These cards are combination cards, but only one
 279          * of these units can be on at a time.
 280          *
 281          * To overcome this limitation, while preserving the basic
 282          * model, the probe routine can select a cfe and try to
 283          * activate it.  If that succeeds, then we'll keep track of
 284          * and let that information persist until we attach the card.
 285          * Probe routines that do this MUST return 0, and cannot
 286          * participate in the bidding process for a device.  This
 287          * seems harsh until you realize that if a probe routine knows
 288          * enough to override the cfe we pick, then chances are very
 289          * very good that it is the only driver that could hope to
 290          * cope with the card.  Bidding is for generic drivers, and
 291          * while some of them may also match, none of them will do
 292          * configuration override.
 293          */
 294         error = device_probe(child);
 295         if (error != 0)
 296                 goto out;
 297         pccard_function_init(pf, -1);
 298         if (sc->sc_enabled_count == 0)
 299                 POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 300         if (pccard_function_enable(pf) == 0 &&
 301             pccard_set_default_descr(child) == 0 &&
 302             device_attach(child) == 0) {
 303                 DEVPRINTF((sc->dev, "function %d CCR at %d offset %#x "
 304                     "mask %#x: %#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n",
 305                     pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
 306                     pf->ccr_mask, pccard_ccr_read(pf, 0x00),
 307                     pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
 308                     pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
 309                     pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
 310                     pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
 311                 return (0);
 312         }
 313         error = ENXIO;
 314 out:;
 315         /*
 316          * Probe may fail AND also try to select a cfe, if so, free
 317          * it.  This is how we do cfe override.  Or the attach fails.
 318          * Either way, we have to clean up.
 319          */
 320         if (pf->cfe != NULL)
 321                 pccard_function_disable(pf);
 322         pf->cfe = NULL;
 323         pccard_function_free(pf);
 324         return error;
 325 }
 326
 327 static int
 328 pccard_detach_card(device_t dev)
 329 {
 330         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 331         struct pccard_function *pf;
 332         struct pccard_config_entry *cfe;
 333         struct pccard_ivar *devi;
 334         int state;
 335
 336         /*
 337          * We are running on either the PCCARD socket's event thread
 338          * or in user context detaching a device by user request.
 339          */
 340         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 341                 if (pf->dev == NULL)
 342                         continue;
 343                 state = device_get_state(pf->dev);
 344                 if (state == DS_ATTACHED || state == DS_BUSY)
 345                         device_detach(pf->dev);
 346                 if (pf->cfe != NULL)
 347                         pccard_function_disable(pf);
 348                 pccard_function_free(pf);
 349                 devi = PCCARD_IVAR(pf->dev);
 350                 device_delete_child(dev, pf->dev);
 351                 free(devi, M_DEVBUF);
 352         }
 353         if (sc->sc_enabled_count == 0)
 354                 POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
 355
 356         while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
 357                 while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
 358                         STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
 359                         free(cfe, M_DEVBUF);
 360                 }
 361                 STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
 362                 free(pf, M_DEVBUF);
 363         }
 364         STAILQ_INIT(&sc->card.pf_head);
 365         return (0);
 366 }
 367
 368 static const struct pccard_product *
 369 pccard_do_product_lookup(device_t bus, device_t dev,
 370     const struct pccard_product *tab, size_t ent_size,
 371     pccard_product_match_fn matchfn)
 372 {
 373         const struct pccard_product *ent;
 374         int matches;
 375         uint32_t vendor;
 376         uint32_t prod;
 377         const char *vendorstr;
 378         const char *prodstr;
 379         const char *cis3str;
 380         const char *cis4str;
 381
 382 #ifdef DIAGNOSTIC
 383         if (sizeof *ent > ent_size)
 384                 panic("pccard_product_lookup: bogus ent_size %jd",
 385                     (intmax_t) ent_size);
 386 #endif
 387         if (pccard_get_vendor(dev, &vendor))
 388                 return (NULL);
 389         if (pccard_get_product(dev, &prod))
 390                 return (NULL);
 391         if (pccard_get_vendor_str(dev, &vendorstr))
 392                 return (NULL);
 393         if (pccard_get_product_str(dev, &prodstr))
 394                 return (NULL);
 395         if (pccard_get_cis3_str(dev, &cis3str))
 396                 return (NULL);
 397         if (pccard_get_cis4_str(dev, &cis4str))
 398                 return (NULL);
 399         for (ent = tab; ent->pp_vendor != 0; ent =
 400             (const struct pccard_product *) ((const char *) ent + ent_size)) {
 401                 matches = 1;
 402                 if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
 403                     ent->pp_product == PCCARD_PRODUCT_ANY &&
 404                     ent->pp_cis[0] == NULL &&
 405                     ent->pp_cis[1] == NULL) {
 406                         if (ent->pp_name)
 407                                 device_printf(dev,
 408                                     "Total wildcard entry ignored for %s\n",
 409                                     ent->pp_name);
 410                         continue;
 411                 }
 412                 if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
 413                     vendor != ent->pp_vendor)
 414                         matches = 0;
 415                 if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
 416                     prod != ent->pp_product)
 417                         matches = 0;
 418                 if (matches && ent->pp_cis[0] &&
 419                     (vendorstr == NULL ||
 420                     strcmp(ent->pp_cis[0], vendorstr) != 0))
 421                         matches = 0;
 422                 if (matches && ent->pp_cis[1] &&
 423                     (prodstr == NULL ||
 424                     strcmp(ent->pp_cis[1], prodstr) != 0))
 425                         matches = 0;
 426                 if (matches && ent->pp_cis[2] &&
 427                     (cis3str == NULL ||
 428                     strcmp(ent->pp_cis[2], cis3str) != 0))
 429                         matches = 0;
 430                 if (matches && ent->pp_cis[3] &&
 431                     (cis4str == NULL ||
 432                     strcmp(ent->pp_cis[3], cis4str) != 0))
 433                         matches = 0;
 434                 if (matchfn != NULL)
 435                         matches = (*matchfn)(dev, ent, matches);
 436                 if (matches)
 437                         return (ent);
 438         }
 439         return (NULL);
 440 }
 441
 442 /**
 443  * @brief pccard_select_cfe
 444  *
 445  * Select a cfe entry to use.  Should be called from the pccard's probe
 446  * routine after it knows for sure that it wants this card.
 447  *
 448  * XXX I think we need to make this symbol be static, ala the kobj stuff
 449  * we do for everything else.  This is a quick hack.
 450  */
 451 int
 452 pccard_select_cfe(device_t dev, int entry)
 453 {
 454         struct pccard_ivar *devi = PCCARD_IVAR(dev);
 455         struct pccard_function *pf = devi->pf;
 456
 457         pccard_function_init(pf, entry);
 458         return (pf->cfe ? 0 : ENOMEM);
 459 }
 460
 461 /*
 462  * Initialize a PCCARD function.  May be called as long as the function is
 463  * disabled.
 464  *
 465  * Note: pccard_function_init should not keep resources allocated.  It should
 466  * only set them up ala isa pnp, set the values in the rl lists, and return.
 467  * Any resource held after pccard_function_init is called is a bug.  However,
 468  * the bus routines to get the resources also assume that pccard_function_init
 469  * does this, so they need to be fixed too.
 470  */
 471 static void
 472 pccard_function_init(struct pccard_function *pf, int entry)
 473 {
 474         struct pccard_config_entry *cfe;
 475         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 476         struct resource_list *rl = &devi->resources;
 477         struct resource_list_entry *rle;
 478         struct resource *r = NULL;
 479         struct pccard_ce_iospace *ios;
 480         struct pccard_ce_memspace *mems;
 481         device_t bus;
 482         rman_res_t start, end, len;
 483         int i, rid, spaces;
 484
 485         if (pf->pf_flags & PFF_ENABLED) {
 486                 printf("pccard_function_init: function is enabled");
 487                 return;
 488         }
 489
 490         /*
 491          * Driver probe routine requested a specific entry already
 492          * that succeeded.
 493          */
 494         if (pf->cfe != NULL)
 495                 return;
 496
 497         /*
 498          * walk the list of configuration entries until we find one that
 499          * we can allocate all the resources to.
 500          */
 501         bus = device_get_parent(pf->dev);
 502         STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
 503                 if (cfe->iftype != PCCARD_IFTYPE_IO)
 504                         continue;
 505                 if (entry != -1 && cfe->number != entry)
 506                         continue;
 507                 spaces = 0;
 508                 for (i = 0; i < cfe->num_iospace; i++) {
 509                         ios = cfe->iospace + i;
 510                         start = ios->start;
 511                         if (start)
 512                                 end = start + ios->length - 1;
 513                         else
 514                                 end = ~0;
 515                         DEVPRINTF((bus, "I/O rid %d start %#jx end %#jx\n",
 516                             i, start, end));
 517                         rid = i;
 518                         len = ios->length;
 519                         r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid,
 520                             start, end, len, rman_make_alignment_flags(len));
 521                         if (r == NULL) {
 522                                 DEVPRINTF((bus, "I/O rid %d failed\n", i));
 523                                 goto not_this_one;
 524                         }
 525                         rle = resource_list_add(rl, SYS_RES_IOPORT,
 526                             rid, rman_get_start(r), rman_get_end(r), len);
 527                         if (rle == NULL)
 528                                 panic("Cannot add resource rid %d IOPORT", rid);
 529                         rle->res = r;
 530                         spaces++;
 531                 }
 532                 for (i = 0; i < cfe->num_memspace; i++) {
 533                         mems = cfe->memspace + i;
 534                         start = mems->cardaddr + mems->hostaddr;
 535                         if (start)
 536                                 end = start + mems->length - 1;
 537                         else
 538                                 end = ~0;
 539                         DEVPRINTF((bus, "Memory rid %d start %#jx end %#jx\ncardaddr %#jx hostaddr %#jx length %#jx\n",
 540                             i, start, end, mems->cardaddr, mems->hostaddr,
 541                             mems->length));
 542                         rid = i;
 543                         len = mems->length;
 544                         r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid,
 545                             start, end, len, rman_make_alignment_flags(len));
 546                         if (r == NULL) {
 547                                 DEVPRINTF((bus, "Memory rid %d failed\n", i));
 548 //                              goto not_this_one;
 549                                 continue;
 550                         }
 551                         rle = resource_list_add(rl, SYS_RES_MEMORY,
 552                             rid, rman_get_start(r), rman_get_end(r), len);
 553                         if (rle == NULL)
 554                                 panic("Cannot add resource rid %d MEM", rid);
 555                         rle->res = r;
 556                         spaces++;
 557                 }
 558                 if (spaces == 0) {
 559                         DEVPRINTF((bus, "Neither memory nor I/O mapped\n"));
 560                         goto not_this_one;
 561                 }
 562                 if (cfe->irqmask) {
 563                         rid = 0;
 564                         r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid,
 565                             RF_SHAREABLE);
 566                         if (r == NULL) {
 567                                 DEVPRINTF((bus, "IRQ rid %d failed\n", rid));
 568                                 goto not_this_one;
 569                         }
 570                         rle = resource_list_add(rl, SYS_RES_IRQ, rid,
 571                             rman_get_start(r), rman_get_end(r), 1);
 572                         if (rle == NULL)
 573                                 panic("Cannot add resource rid %d IRQ", rid);
 574                         rle->res = r;
 575                 }
 576                 /* If we get to here, we've allocated all we need */
 577                 pf->cfe = cfe;
 578                 break;
 579             not_this_one:;
 580                 DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
 581                     cfe->number));
 582                 resource_list_purge(rl);
 583         }
 584 }
 585
 586 /*
 587  * Free resources allocated by pccard_function_init(), May be called as long
 588  * as the function is disabled.
 589  *
 590  * NOTE: This function should be unnecessary.  pccard_function_init should
 591  * never keep resources initialized.
 592  */
 593 static void
 594 pccard_function_free(struct pccard_function *pf)
 595 {
 596         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 597         struct resource_list_entry *rle;
 598
 599         if (pf->pf_flags & PFF_ENABLED) {
 600                 printf("pccard_function_free: function is enabled");
 601                 return;
 602         }
 603
 604         STAILQ_FOREACH(rle, &devi->resources, link) {
 605                 if (rle->res) {
 606                         if (rman_get_device(rle->res) != pf->sc->dev)
 607                                 device_printf(pf->sc->dev,
 608                                     "function_free: Resource still owned by "
 609                                     "child, oops. "
 610                                     "(type=%d, rid=%d, addr=%#jx)\n",
 611                                     rle->type, rle->rid,
 612                                     rman_get_start(rle->res));
 613                         BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
 614                             pf->sc->dev, rle->type, rle->rid, rle->res);
 615                         rle->res = NULL;
 616                 }
 617         }
 618         resource_list_free(&devi->resources);
 619 }
 620
 621 static void
 622 pccard_mfc_adjust_iobase(struct pccard_function *pf, rman_res_t addr,
 623     rman_res_t offset, rman_res_t size)
 624 {
 625         bus_size_t iosize, tmp;
 626
 627         if (addr != 0) {
 628                 if (pf->pf_mfc_iomax == 0) {
 629                         pf->pf_mfc_iobase = addr + offset;
 630                         pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
 631                 } else {
 632                         /* this makes the assumption that nothing overlaps */
 633                         if (pf->pf_mfc_iobase > addr + offset)
 634                                 pf->pf_mfc_iobase = addr + offset;
 635                         if (pf->pf_mfc_iomax < addr + offset + size)
 636                                 pf->pf_mfc_iomax = addr + offset + size;
 637                 }
 638         }
 639
 640         tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
 641         /* round up to nearest (2^n)-1 */
 642         for (iosize = 1; iosize < tmp; iosize <<= 1)
 643                 ;
 644         iosize--;
 645
 646         DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n",
 647             (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1)));
 648         pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
 649             pf->pf_mfc_iobase & 0xff);
 650         pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
 651             (pf->pf_mfc_iobase >> 8) & 0xff);
 652         pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
 653         pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
 654         pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
 655 }
 656
 657 /* Enable a PCCARD function */
 658 static int
 659 pccard_function_enable(struct pccard_function *pf)
 660 {
 661         struct pccard_function *tmp;
 662         int reg;
 663         device_t dev = pf->sc->dev;
 664
 665         if (pf->cfe == NULL) {
 666                 DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
 667                 return (ENOMEM);
 668         }
 669
 670         if (pf->pf_flags & PFF_ENABLED)
 671                 return (0);
 672         pf->sc->sc_enabled_count++;
 673
 674         /*
 675          * it's possible for different functions' CCRs to be in the same
 676          * underlying page.  Check for that.
 677          */
 678         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 679                 if ((tmp->pf_flags & PFF_ENABLED) &&
 680                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 681                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 682                     (tmp->ccr_base - tmp->pf_ccr_offset +
 683                     tmp->pf_ccr_realsize))) {
 684                         pf->pf_ccrt = tmp->pf_ccrt;
 685                         pf->pf_ccrh = tmp->pf_ccrh;
 686                         pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
 687
 688                         /*
 689                          * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
 690                          * tmp->ccr_base) + pf->ccr_base;
 691                          */
 692                         /* pf->pf_ccr_offset =
 693                             (tmp->pf_ccr_offset + pf->ccr_base) -
 694                             tmp->ccr_base; */
 695                         pf->pf_ccr_window = tmp->pf_ccr_window;
 696                         break;
 697                 }
 698         }
 699         if (tmp == NULL) {
 700                 pf->ccr_rid = 0;
 701                 pf->ccr_res = bus_alloc_resource_anywhere(dev, SYS_RES_MEMORY,
 702                     &pf->ccr_rid, PCCARD_MEM_PAGE_SIZE, RF_ACTIVE);
 703                 if (!pf->ccr_res)
 704                         goto bad;
 705                 DEVPRINTF((dev, "ccr_res == %#jx-%#jx, base=%#x\n",
 706                     rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
 707                     pf->ccr_base));
 708                 CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
 709                     pf->ccr_rid, PCCARD_A_MEM_ATTR);
 710                 CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
 711                     pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
 712                 pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
 713                 pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
 714                 pf->pf_ccr_realsize = 1;
 715         }
 716
 717         reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
 718         reg |= PCCARD_CCR_OPTION_LEVIREQ;
 719         if (pccard_mfc(pf->sc)) {
 720                 reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
 721                         PCCARD_CCR_OPTION_ADDR_DECODE);
 722                 /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
 723         }
 724         pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
 725
 726         reg = 0;
 727         if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
 728                 reg |= PCCARD_CCR_STATUS_IOIS8;
 729         if (pf->cfe->flags & PCCARD_CFE_AUDIO)
 730                 reg |= PCCARD_CCR_STATUS_AUDIO;
 731         pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
 732
 733         pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
 734
 735         if (pccard_mfc(pf->sc))
 736                 pccard_mfc_adjust_iobase(pf, 0, 0, 0);
 737
 738 #ifdef PCCARDDEBUG
 739         if (pccard_debug) {
 740                 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 741                         device_printf(tmp->sc->dev,
 742                             "function %d CCR at %d offset %#x: "
 743                             "%#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n",
 744                             tmp->number, tmp->pf_ccr_window,
 745                             tmp->pf_ccr_offset,
 746                             pccard_ccr_read(tmp, 0x00),
 747                             pccard_ccr_read(tmp, 0x02),
 748                             pccard_ccr_read(tmp, 0x04),
 749                             pccard_ccr_read(tmp, 0x06),
 750                             pccard_ccr_read(tmp, 0x0A),
 751                             pccard_ccr_read(tmp, 0x0C),
 752                             pccard_ccr_read(tmp, 0x0E),
 753                             pccard_ccr_read(tmp, 0x10),
 754                             pccard_ccr_read(tmp, 0x12));
 755                 }
 756         }
 757 #endif
 758         pf->pf_flags |= PFF_ENABLED;
 759         return (0);
 760
 761  bad:
 762         /*
 763          * Decrement the reference count, and power down the socket, if
 764          * necessary.
 765          */
 766         pf->sc->sc_enabled_count--;
 767         DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
 768
 769         return (1);
 770 }
 771
 772 /* Disable PCCARD function. */
 773 static void
 774 pccard_function_disable(struct pccard_function *pf)
 775 {
 776         struct pccard_function *tmp;
 777         device_t dev = pf->sc->dev;
 778
 779         if (pf->cfe == NULL)
 780                 panic("pccard_function_disable: function not initialized");
 781
 782         if ((pf->pf_flags & PFF_ENABLED) == 0)
 783                 return;
 784         if (pf->intr_handler != NULL) {
 785                 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 786                 struct resource_list_entry *rle =
 787                     resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
 788                 if (rle == NULL)
 789                         panic("Can't disable an interrupt with no IRQ res\n");
 790                 BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
 791                     pf->intr_handler_cookie);
 792         }
 793
 794         /*
 795          * it's possible for different functions' CCRs to be in the same
 796          * underlying page.  Check for that.  Note we mark us as disabled
 797          * first to avoid matching ourself.
 798          */
 799
 800         pf->pf_flags &= ~PFF_ENABLED;
 801         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 802                 if ((tmp->pf_flags & PFF_ENABLED) &&
 803                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 804                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 805                     (tmp->ccr_base - tmp->pf_ccr_offset +
 806                     tmp->pf_ccr_realsize)))
 807                         break;
 808         }
 809
 810         /* Not used by anyone else; unmap the CCR. */
 811         if (tmp == NULL) {
 812                 bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
 813                     pf->ccr_res);
 814                 pf->ccr_res = NULL;
 815         }
 816
 817         /*
 818          * Decrement the reference count, and power down the socket, if
 819          * necessary.
 820          */
 821         pf->sc->sc_enabled_count--;
 822 }
 823
 824 #define PCCARD_NPORT    2
 825 #define PCCARD_NMEM     5
 826 #define PCCARD_NIRQ     1
 827 #define PCCARD_NDRQ     0
 828
 829 static int
 830 pccard_probe(device_t dev)
 831 {
 832         device_set_desc(dev, "16-bit PCCard bus");
 833         return (0);
 834 }
 835
 836 static int
 837 pccard_attach(device_t dev)
 838 {
 839         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 840         int err;
 841
 842         sc->dev = dev;
 843         sc->sc_enabled_count = 0;
 844         if ((err = pccard_device_create(sc)) != 0)
 845                 return  (err);
 846         STAILQ_INIT(&sc->card.pf_head);
 847         return (bus_generic_attach(dev));
 848 }
 849
 850 static int
 851 pccard_detach(device_t dev)
 852 {
 853         pccard_detach_card(dev);
 854         pccard_device_destroy(device_get_softc(dev));
 855         return (0);
 856 }
 857
 858 static int
 859 pccard_suspend(device_t self)
 860 {
 861         pccard_detach_card(self);
 862         return (0);
 863 }
 864
 865 static
 866 int
 867 pccard_resume(device_t self)
 868 {
 869         return (0);
 870 }
 871
 872 static void
 873 pccard_print_resources(struct resource_list *rl, const char *name, int type,
 874     int count, const char *format)
 875 {
 876         struct resource_list_entry *rle;
 877         int printed;
 878         int i;
 879
 880         printed = 0;
 881         for (i = 0; i < count; i++) {
 882                 rle = resource_list_find(rl, type, i);
 883                 if (rle != NULL) {
 884                         if (printed == 0)
 885                                 printf(" %s ", name);
 886                         else if (printed > 0)
 887                                 printf(",");
 888                         printed++;
 889                         printf(format, rle->start);
 890                         if (rle->count > 1) {
 891                                 printf("-");
 892                                 printf(format, rle->start + rle->count - 1);
 893                         }
 894                 } else if (i > 3) {
 895                         /* check the first few regardless */
 896                         break;
 897                 }
 898         }
 899 }
 900
 901 static int
 902 pccard_print_child(device_t dev, device_t child)
 903 {
 904         struct pccard_ivar *devi = PCCARD_IVAR(child);
 905         struct resource_list *rl = &devi->resources;
 906         int retval = 0;
 907
 908         retval += bus_print_child_header(dev, child);
 909         retval += printf(" at");
 910
 911         if (devi != NULL) {
 912                 pccard_print_resources(rl, "port", SYS_RES_IOPORT,
 913                     PCCARD_NPORT, "%#lx");
 914                 pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
 915                     PCCARD_NMEM, "%#lx");
 916                 pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
 917                     "%ld");
 918                 pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
 919                     "%ld");
 920                 retval += printf(" function %d config %d", devi->pf->number,
 921                     devi->pf->cfe->number);
 922         }
 923
 924         retval += bus_print_child_footer(dev, child);
 925
 926         return (retval);
 927 }
 928
 929 static int
 930 pccard_set_resource(device_t dev, device_t child, int type, int rid,
 931     rman_res_t start, rman_res_t count)
 932 {
 933         struct pccard_ivar *devi = PCCARD_IVAR(child);
 934         struct resource_list *rl = &devi->resources;
 935
 936         if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
 937             && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
 938                 return (EINVAL);
 939         if (rid < 0)
 940                 return (EINVAL);
 941         if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
 942                 return (EINVAL);
 943         if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
 944                 return (EINVAL);
 945         if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
 946                 return (EINVAL);
 947         if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
 948                 return (EINVAL);
 949
 950         resource_list_add(rl, type, rid, start, start + count - 1, count);
 951         if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
 952             type, &rid, start, start + count - 1, count, 0))
 953                 return 0;
 954         else
 955                 return ENOMEM;
 956 }
 957
 958 static int
 959 pccard_get_resource(device_t dev, device_t child, int type, int rid,
 960     rman_res_t *startp, rman_res_t *countp)
 961 {
 962         struct pccard_ivar *devi = PCCARD_IVAR(child);
 963         struct resource_list *rl = &devi->resources;
 964         struct resource_list_entry *rle;
 965
 966         rle = resource_list_find(rl, type, rid);
 967         if (rle == NULL)
 968                 return (ENOENT);
 969
 970         if (startp != NULL)
 971                 *startp = rle->start;
 972         if (countp != NULL)
 973                 *countp = rle->count;
 974
 975         return (0);
 976 }
 977
 978 static void
 979 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
 980 {
 981         struct pccard_ivar *devi = PCCARD_IVAR(child);
 982         struct resource_list *rl = &devi->resources;
 983         resource_list_delete(rl, type, rid);
 984 }
 985
 986 static int
 987 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
 988     u_long flags)
 989 {
 990         return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
 991             rid, flags));
 992 }
 993
 994 static int
 995 pccard_set_memory_offset(device_t dev, device_t child, int rid,
 996     uint32_t offset, uint32_t *deltap)
 997
 998 {
 999         return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
1000             offset, deltap));
1001 }
1002
1003 static void
1004 pccard_probe_nomatch(device_t bus, device_t child)
1005 {
1006         struct pccard_ivar *devi = PCCARD_IVAR(child);
1007         struct pccard_function *pf = devi->pf;
1008         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1009         int i;
1010
1011         device_printf(bus, "<unknown card>");
1012         printf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) "
1013             "at function %d\n", sc->card.manufacturer, sc->card.product,
1014             pf->function, pf->number);
1015         device_printf(bus, "   CIS info: ");
1016         for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++)
1017                 printf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]);
1018         printf("\n");
1019         return;
1020 }
1021
1022 static int
1023 pccard_child_location_str(device_t bus, device_t child, char *buf,
1024     size_t buflen)
1025 {
1026         struct pccard_ivar *devi = PCCARD_IVAR(child);
1027         struct pccard_function *pf = devi->pf;
1028
1029         snprintf(buf, buflen, "function=%d", pf->number);
1030         return (0);
1031 }
1032
1033 static int
1034 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
1035     size_t buflen)
1036 {
1037         struct pccard_ivar *devi = PCCARD_IVAR(child);
1038         struct pccard_function *pf = devi->pf;
1039         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1040         struct sbuf sb;
1041
1042         sbuf_new(&sb, buf, buflen, SBUF_FIXEDLEN | SBUF_INCLUDENUL);
1043         sbuf_printf(&sb, "manufacturer=0x%04x product=0x%04x "
1044             "cisvendor=\"", sc->card.manufacturer, sc->card.product);
1045         devctl_safe_quote_sb(&sb, sc->card.cis1_info[0]);
1046         sbuf_printf(&sb, "\" cisproduct=\"");
1047         devctl_safe_quote_sb(&sb, sc->card.cis1_info[1]);
1048         sbuf_printf(&sb, "\" function_type=%d", pf->function);
1049         sbuf_finish(&sb);
1050         sbuf_delete(&sb);
1051
1052         return (0);
1053 }
1054
1055 static int
1056 pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result)
1057 {
1058         struct pccard_ivar *devi = PCCARD_IVAR(child);
1059         struct pccard_function *pf = devi->pf;
1060         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1061
1062         if (!pf)
1063                 panic("No pccard function pointer");
1064         switch (which) {
1065         default:
1066                 return (EINVAL);
1067         case PCCARD_IVAR_FUNCE_DISK:
1068                 *(uint16_t *)result = pf->pf_funce_disk_interface |
1069                     (pf->pf_funce_disk_power << 8);
1070                 break;
1071         case PCCARD_IVAR_ETHADDR:
1072                 bcopy(pf->pf_funce_lan_nid, result, ETHER_ADDR_LEN);
1073                 break;
1074         case PCCARD_IVAR_VENDOR:
1075                 *(uint32_t *)result = sc->card.manufacturer;
1076                 break;
1077         case PCCARD_IVAR_PRODUCT:
1078                 *(uint32_t *)result = sc->card.product;
1079                 break;
1080         case PCCARD_IVAR_PRODEXT:
1081                 *(uint16_t *)result = sc->card.prodext;
1082                 break;
1083         case PCCARD_IVAR_FUNCTION:
1084                 *(uint32_t *)result = pf->function;
1085                 break;
1086         case PCCARD_IVAR_FUNCTION_NUMBER:
1087                 *(uint32_t *)result = pf->number;
1088                 break;
1089         case PCCARD_IVAR_VENDOR_STR:
1090                 *(const char **)result = sc->card.cis1_info[0];
1091                 break;
1092         case PCCARD_IVAR_PRODUCT_STR:
1093                 *(const char **)result = sc->card.cis1_info[1];
1094                 break;
1095         case PCCARD_IVAR_CIS3_STR:
1096                 *(const char **)result = sc->card.cis1_info[2];
1097                 break;
1098         case PCCARD_IVAR_CIS4_STR:
1099                 *(const char **)result = sc->card.cis1_info[3];
1100                 break;
1101         }
1102         return (0);
1103 }
1104
1105 static void
1106 pccard_driver_added(device_t dev, driver_t *driver)
1107 {
1108         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1109         struct pccard_function *pf;
1110         device_t child;
1111
1112         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1113                 if (STAILQ_EMPTY(&pf->cfe_head))
1114                         continue;
1115                 child = pf->dev;
1116                 if (device_get_state(child) != DS_NOTPRESENT)
1117                         continue;
1118                 pccard_probe_and_attach_child(dev, child, pf);
1119         }
1120         return;
1121 }
1122
1123 static struct resource *
1124 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1125     rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
1126 {
1127         struct pccard_ivar *dinfo;
1128         struct resource_list_entry *rle = NULL;
1129         int passthrough = (device_get_parent(child) != dev);
1130         int isdefault = (RMAN_IS_DEFAULT_RANGE(start, end) && count == 1);
1131         struct resource *r = NULL;
1132
1133         /* XXX I'm no longer sure this is right */
1134         if (passthrough) {
1135                 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1136                     type, rid, start, end, count, flags));
1137         }
1138
1139         dinfo = device_get_ivars(child);
1140         rle = resource_list_find(&dinfo->resources, type, *rid);
1141
1142         if (rle == NULL && isdefault)
1143                 return (NULL);  /* no resource of that type/rid */
1144         if (rle == NULL || rle->res == NULL) {
1145                 /* XXX Need to adjust flags */
1146                 r = bus_alloc_resource(dev, type, rid, start, end,
1147                   count, flags);
1148                 if (r == NULL)
1149                     goto bad;
1150                 resource_list_add(&dinfo->resources, type, *rid,
1151                   rman_get_start(r), rman_get_end(r), count);
1152                 rle = resource_list_find(&dinfo->resources, type, *rid);
1153                 if (!rle)
1154                     goto bad;
1155                 rle->res = r;
1156         }
1157         /*
1158          * If dev doesn't own the device, then we can't give this device
1159          * out.
1160          */
1161         if (rman_get_device(rle->res) != dev)
1162                 return (NULL);
1163         rman_set_device(rle->res, child);
1164         if (flags & RF_ACTIVE)
1165                 BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res);
1166         return (rle->res);
1167 bad:;
1168         device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1169         return (NULL);
1170 }
1171
1172 static int
1173 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1174     struct resource *r)
1175 {
1176         struct pccard_ivar *dinfo;
1177         int passthrough = (device_get_parent(child) != dev);
1178         struct resource_list_entry *rle = NULL;
1179
1180         if (passthrough)
1181                 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1182                     type, rid, r);
1183
1184         dinfo = device_get_ivars(child);
1185
1186         rle = resource_list_find(&dinfo->resources, type, rid);
1187
1188         if (!rle) {
1189                 device_printf(dev, "Allocated resource not found, "
1190                     "%d %#x %#jx %#jx\n",
1191                     type, rid, rman_get_start(r), rman_get_size(r));
1192                 return ENOENT;
1193         }
1194         if (!rle->res) {
1195                 device_printf(dev, "Allocated resource not recorded\n");
1196                 return ENOENT;
1197         }
1198         /*
1199          * Deactivate the resource (since it is being released), and
1200          * assign it to the bus.
1201          */
1202         BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res);
1203         rman_set_device(rle->res, dev);
1204         return (0);
1205 }
1206
1207 static void
1208 pccard_child_detached(device_t parent, device_t dev)
1209 {
1210         struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1211         struct pccard_function *pf = ivar->pf;
1212
1213         pccard_function_disable(pf);
1214 }
1215
1216 static int
1217 pccard_filter(void *arg)
1218 {
1219         struct pccard_function *pf = (struct pccard_function*) arg;
1220         int reg;
1221         int doisr = 1;
1222
1223         /*
1224          * MFC cards know if they interrupted, so we have to ack the
1225          * interrupt and call the ISR.  Non-MFC cards don't have these
1226          * bits, so they always get called.  Many non-MFC cards have
1227          * this bit set always upon read, but some do not.
1228          *
1229          * We always ack the interrupt, even if there's no ISR
1230          * for the card.  This is done on the theory that acking
1231          * the interrupt will pacify the card enough to keep an
1232          * interrupt storm from happening.  Of course this won't
1233          * help in the non-MFC case.
1234          *
1235          * This has no impact for MPSAFEness of the client drivers.
1236          * We register this with whatever flags the intr_handler
1237          * was registered with.  All these functions are MPSAFE.
1238          */
1239         if (pccard_mfc(pf->sc)) {
1240                 reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1241                 if (reg & PCCARD_CCR_STATUS_INTR)
1242                         pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1243                             reg & ~PCCARD_CCR_STATUS_INTR);
1244                 else
1245                         doisr = 0;
1246         }
1247         if (doisr) {
1248                 if (pf->intr_filter != NULL)
1249                         return (pf->intr_filter(pf->intr_handler_arg));
1250                 return (FILTER_SCHEDULE_THREAD);
1251         }
1252         return (FILTER_STRAY);
1253 }
1254
1255 static void
1256 pccard_intr(void *arg)
1257 {
1258         struct pccard_function *pf = (struct pccard_function*) arg;
1259
1260         pf->intr_handler(pf->intr_handler_arg);
1261 }
1262
1263 static int
1264 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1265     int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg,
1266     void **cookiep)
1267 {
1268         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1269         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1270         struct pccard_function *pf = ivar->pf;
1271         int err;
1272
1273         if (pf->intr_filter != NULL || pf->intr_handler != NULL)
1274                 panic("Only one interrupt handler per function allowed");
1275         err = bus_generic_setup_intr(dev, child, irq, flags, pccard_filter,
1276             intr ? pccard_intr : NULL, pf, cookiep);
1277         if (err != 0)
1278                 return (err);
1279         pf->intr_filter = filt;
1280         pf->intr_handler = intr;
1281         pf->intr_handler_arg = arg;
1282         pf->intr_handler_cookie = *cookiep;
1283         if (pccard_mfc(sc)) {
1284                 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1285                     pccard_ccr_read(pf, PCCARD_CCR_OPTION) |
1286                     PCCARD_CCR_OPTION_IREQ_ENABLE);
1287         }
1288         return (0);
1289 }
1290
1291 static int
1292 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1293     void *cookie)
1294 {
1295         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1296         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1297         struct pccard_function *pf = ivar->pf;
1298         int ret;
1299
1300         if (pccard_mfc(sc)) {
1301                 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1302                     pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
1303                     ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1304         }
1305         ret = bus_generic_teardown_intr(dev, child, r, cookie);
1306         if (ret == 0) {
1307                 pf->intr_handler = NULL;
1308                 pf->intr_handler_arg = NULL;
1309                 pf->intr_handler_cookie = NULL;
1310         }
1311
1312         return (ret);
1313 }
1314
1315 static int
1316 pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
1317     struct resource *r)
1318 {
1319         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1320         struct pccard_function *pf = ivar->pf;
1321
1322         switch(type) {
1323         case SYS_RES_IOPORT:
1324                 /*
1325                  * We need to adjust IOBASE[01] and IOSIZE if we're an MFC
1326                  * card.
1327                  */
1328                 if (pccard_mfc(pf->sc))
1329                         pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1330                             rman_get_size(r));
1331                 break;
1332         default:
1333                 break;
1334         }
1335         return (bus_generic_activate_resource(brdev, child, type, rid, r));
1336 }
1337
1338 static int
1339 pccard_deactivate_resource(device_t brdev, device_t child, int type,
1340     int rid, struct resource *r)
1341 {
1342         /* XXX undo pccard_activate_resource? XXX */
1343         return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
1344 }
1345
1346 static int
1347 pccard_attr_read_impl(device_t brdev, device_t child, uint32_t offset,
1348     uint8_t *val)
1349 {
1350         struct pccard_ivar *devi = PCCARD_IVAR(child);
1351         struct pccard_function *pf = devi->pf;
1352
1353         /*
1354          * Optimization.  Most of the time, devices want to access
1355          * the same page of the attribute memory that the CCR is in.
1356          * We take advantage of this fact here.
1357          */
1358         if (offset / PCCARD_MEM_PAGE_SIZE ==
1359             pf->ccr_base / PCCARD_MEM_PAGE_SIZE)
1360                 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
1361                     offset % PCCARD_MEM_PAGE_SIZE);
1362         else {
1363                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset,
1364                     &offset);
1365                 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, offset);
1366                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base,
1367                     &offset);
1368         }
1369         return 0;
1370 }
1371
1372 static int
1373 pccard_attr_write_impl(device_t brdev, device_t child, uint32_t offset,
1374     uint8_t val)
1375 {
1376         struct pccard_ivar *devi = PCCARD_IVAR(child);
1377         struct pccard_function *pf = devi->pf;
1378
1379         /*
1380          * Optimization.  Most of the time, devices want to access
1381          * the same page of the attribute memory that the CCR is in.
1382          * We take advantage of this fact here.
1383          */
1384         if (offset / PCCARD_MEM_PAGE_SIZE ==
1385             pf->ccr_base / PCCARD_MEM_PAGE_SIZE)
1386                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
1387                     offset % PCCARD_MEM_PAGE_SIZE, val);
1388         else {
1389                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset,
1390                     &offset);
1391                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, offset, val);
1392                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base,
1393                     &offset);
1394         }
1395
1396         return 0;
1397 }
1398
1399 static int
1400 pccard_ccr_read_impl(device_t brdev, device_t child, uint32_t offset,
1401     uint8_t *val)
1402 {
1403         struct pccard_ivar *devi = PCCARD_IVAR(child);
1404
1405         *val = pccard_ccr_read(devi->pf, offset);
1406         DEVPRINTF((child, "ccr_read of %#x (%#x) is %#x\n", offset,
1407           devi->pf->pf_ccr_offset, *val));
1408         return 0;
1409 }
1410
1411 static int
1412 pccard_ccr_write_impl(device_t brdev, device_t child, uint32_t offset,
1413     uint8_t val)
1414 {
1415         struct pccard_ivar *devi = PCCARD_IVAR(child);
1416         struct pccard_function *pf = devi->pf;
1417
1418         /*
1419          * Can't use pccard_ccr_write since client drivers may access
1420          * registers not contained in the 'mask' if they are non-standard.
1421          */
1422         DEVPRINTF((child, "ccr_write of %#x to %#x (%#x)\n", val, offset,
1423           devi->pf->pf_ccr_offset));
1424         bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, pf->pf_ccr_offset + offset,
1425             val);
1426         return 0;
1427 }
1428
1429
1430 static device_method_t pccard_methods[] = {
1431         /* Device interface */
1432         DEVMETHOD(device_probe,         pccard_probe),
1433         DEVMETHOD(device_attach,        pccard_attach),
1434         DEVMETHOD(device_detach,        pccard_detach),
1435         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
1436         DEVMETHOD(device_suspend,       pccard_suspend),
1437         DEVMETHOD(device_resume,        pccard_resume),
1438
1439         /* Bus interface */
1440         DEVMETHOD(bus_print_child,      pccard_print_child),
1441         DEVMETHOD(bus_driver_added,     pccard_driver_added),
1442         DEVMETHOD(bus_child_detached,   pccard_child_detached),
1443         DEVMETHOD(bus_alloc_resource,   pccard_alloc_resource),
1444         DEVMETHOD(bus_release_resource, pccard_release_resource),
1445         DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1446         DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
1447         DEVMETHOD(bus_setup_intr,       pccard_setup_intr),
1448         DEVMETHOD(bus_teardown_intr,    pccard_teardown_intr),
1449         DEVMETHOD(bus_set_resource,     pccard_set_resource),
1450         DEVMETHOD(bus_get_resource,     pccard_get_resource),
1451         DEVMETHOD(bus_delete_resource,  pccard_delete_resource),
1452         DEVMETHOD(bus_probe_nomatch,    pccard_probe_nomatch),
1453         DEVMETHOD(bus_read_ivar,        pccard_read_ivar),
1454         DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1455         DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1456
1457         /* Card Interface */
1458         DEVMETHOD(card_set_res_flags,   pccard_set_res_flags),
1459         DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1460         DEVMETHOD(card_attach_card,     pccard_attach_card),
1461         DEVMETHOD(card_detach_card,     pccard_detach_card),
1462         DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1463         DEVMETHOD(card_cis_scan,        pccard_scan_cis),
1464         DEVMETHOD(card_attr_read,       pccard_attr_read_impl),
1465         DEVMETHOD(card_attr_write,      pccard_attr_write_impl),
1466         DEVMETHOD(card_ccr_read,        pccard_ccr_read_impl),
1467         DEVMETHOD(card_ccr_write,       pccard_ccr_write_impl),
1468
1469         { 0, 0 }
1470 };
1471
1472 static driver_t pccard_driver = {
1473         "pccard",
1474         pccard_methods,
1475         sizeof(struct pccard_softc)
1476 };
1477
1478 devclass_t      pccard_devclass;
1479
1480 /* Maybe we need to have a slot device? */
1481 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
1482 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
1483 MODULE_VERSION(pccard, 1);