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/kernel.h>
  39 #include <sys/lock.h>
  40 #include <sys/malloc.h>
  41 #include <sys/module.h>
  42 #include <sys/mutex.h>
  43 #include <sys/queue.h>
  44 #include <sys/sbuf.h>
  45 #include <sys/sysctl.h>
  46 #include <sys/systm.h>
  47
  48 #include <sys/bus.h>
  49 #include <machine/bus.h>
  50 #include <sys/rman.h>
  51 #include <machine/resource.h>
  52
  53 #include <net/ethernet.h>
  54
  55 #include <dev/pccard/pccardreg.h>
  56 #include <dev/pccard/pccardvar.h>
  57 #include <dev/pccard/pccardvarp.h>
  58 #include <dev/pccard/pccard_cis.h>
  59
  60 #include "power_if.h"
  61 #include "card_if.h"
  62
  63 #define PCCARDDEBUG
  64
  65 /* sysctl vars */
  66 static SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
  67
  68 int     pccard_debug = 0;
  69 SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RWTUN,
  70     &pccard_debug, 0,
  71   "pccard debug");
  72
  73 int     pccard_cis_debug = 0;
  74 SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RWTUN,
  75     &pccard_cis_debug, 0, "pccard CIS debug");
  76
  77 #ifdef PCCARDDEBUG
  78 #define DPRINTF(arg) if (pccard_debug) printf arg
  79 #define DEVPRINTF(arg) if (pccard_debug) device_printf arg
  80 #define PRVERBOSE(arg) printf arg
  81 #define DEVPRVERBOSE(arg) device_printf arg
  82 #else
  83 #define DPRINTF(arg)
  84 #define DEVPRINTF(arg)
  85 #define PRVERBOSE(arg) if (bootverbose) printf arg
  86 #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
  87 #endif
  88
  89 static int      pccard_ccr_read(struct pccard_function *pf, int ccr);
  90 static void     pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
  91 static int      pccard_attach_card(device_t dev);
  92 static int      pccard_detach_card(device_t dev);
  93 static void     pccard_function_init(struct pccard_function *pf, int entry);
  94 static void     pccard_function_free(struct pccard_function *pf);
  95 static int      pccard_function_enable(struct pccard_function *pf);
  96 static void     pccard_function_disable(struct pccard_function *pf);
  97 static int      pccard_probe(device_t dev);
  98 static int      pccard_attach(device_t dev);
  99 static int      pccard_detach(device_t dev);
 100 static void     pccard_print_resources(struct resource_list *rl,
 101                     const char *name, int type, int count, const char *format);
 102 static int      pccard_print_child(device_t dev, device_t child);
 103 static int      pccard_set_resource(device_t dev, device_t child, int type,
 104                     int rid, rman_res_t start, rman_res_t count);
 105 static int      pccard_get_resource(device_t dev, device_t child, int type,
 106                     int rid, rman_res_t *startp, rman_res_t *countp);
 107 static void     pccard_delete_resource(device_t dev, device_t child, int type,
 108                     int rid);
 109 static int      pccard_set_res_flags(device_t dev, device_t child, int type,
 110                     int rid, u_long flags);
 111 static int      pccard_set_memory_offset(device_t dev, device_t child, int rid,
 112                     uint32_t offset, uint32_t *deltap);
 113 static int      pccard_probe_and_attach_child(device_t dev, device_t child,
 114                     struct pccard_function *pf);
 115 static void     pccard_probe_nomatch(device_t cbdev, device_t child);
 116 static int      pccard_read_ivar(device_t bus, device_t child, int which,
 117                     uintptr_t *result);
 118 static void     pccard_driver_added(device_t dev, driver_t *driver);
 119 static struct resource *pccard_alloc_resource(device_t dev,
 120                     device_t child, int type, int *rid, rman_res_t start,
 121                     rman_res_t end, rman_res_t count, u_int flags);
 122 static int      pccard_release_resource(device_t dev, device_t child, int type,
 123                     int rid, struct resource *r);
 124 static void     pccard_child_detached(device_t parent, device_t dev);
 125 static int      pccard_filter(void *arg);
 126 static void     pccard_intr(void *arg);
 127 static int      pccard_setup_intr(device_t dev, device_t child,
 128                     struct resource *irq, int flags, driver_filter_t *filt,
 129                     driver_intr_t *intr, void *arg, void **cookiep);
 130 static int      pccard_teardown_intr(device_t dev, device_t child,
 131                     struct resource *r, void *cookie);
 132
 133 static const struct pccard_product *
 134 pccard_do_product_lookup(device_t bus, device_t dev,
 135                          const struct pccard_product *tab, size_t ent_size,
 136                          pccard_product_match_fn matchfn);
 137
 138
 139 static int
 140 pccard_ccr_read(struct pccard_function *pf, int ccr)
 141 {
 142         return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
 143             pf->pf_ccr_offset + ccr));
 144 }
 145
 146 static void
 147 pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
 148 {
 149         if ((pf->ccr_mask) & (1 << (ccr / 2))) {
 150                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
 151                     pf->pf_ccr_offset + ccr, val);
 152         }
 153 }
 154
 155 static int
 156 pccard_set_default_descr(device_t dev)
 157 {
 158         const char *vendorstr, *prodstr;
 159         uint32_t vendor, prod;
 160         char *str;
 161
 162         if (pccard_get_vendor_str(dev, &vendorstr))
 163                 return (0);
 164         if (pccard_get_product_str(dev, &prodstr))
 165                 return (0);
 166         if (vendorstr != NULL && prodstr != NULL) {
 167                 str = malloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF,
 168                     M_WAITOK);
 169                 sprintf(str, "%s %s", vendorstr, prodstr);
 170                 device_set_desc_copy(dev, str);
 171                 free(str, M_DEVBUF);
 172         } else {
 173                 if (pccard_get_vendor(dev, &vendor))
 174                         return (0);
 175                 if (pccard_get_product(dev, &prod))
 176                         return (0);
 177                 str = malloc(100, M_DEVBUF, M_WAITOK);
 178                 snprintf(str, 100, "vendor=%#x product=%#x", vendor, prod);
 179                 device_set_desc_copy(dev, str);
 180                 free(str, M_DEVBUF);
 181         }
 182         return (0);
 183 }
 184
 185 static int
 186 pccard_attach_card(device_t dev)
 187 {
 188         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 189         struct pccard_function *pf;
 190         struct pccard_ivar *ivar;
 191         device_t child;
 192         int i;
 193
 194         if (!STAILQ_EMPTY(&sc->card.pf_head)) {
 195                 if (bootverbose || pccard_debug)
 196                         device_printf(dev, "Card already inserted.\n");
 197         }
 198
 199         DEVPRINTF((dev, "chip_socket_enable\n"));
 200         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 201
 202         DEVPRINTF((dev, "read_cis\n"));
 203         pccard_read_cis(sc);
 204
 205         DEVPRINTF((dev, "check_cis_quirks\n"));
 206         pccard_check_cis_quirks(dev);
 207
 208         /*
 209          * bail now if the card has no functions, or if there was an error in
 210          * the cis.
 211          */
 212
 213         if (sc->card.error) {
 214                 device_printf(dev, "CARD ERROR!\n");
 215                 return (1);
 216         }
 217         if (STAILQ_EMPTY(&sc->card.pf_head)) {
 218                 device_printf(dev, "Card has no functions!\n");
 219                 return (1);
 220         }
 221
 222         if (bootverbose || pccard_debug)
 223                 pccard_print_cis(dev);
 224
 225         DEVPRINTF((dev, "functions scanning\n"));
 226         i = -1;
 227         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 228                 i++;
 229                 if (STAILQ_EMPTY(&pf->cfe_head)) {
 230                         device_printf(dev,
 231                             "Function %d has no config entries.!\n", i);
 232                         continue;
 233                 }
 234                 pf->sc = sc;
 235                 pf->cfe = NULL;
 236                 pf->dev = NULL;
 237         }
 238         DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
 239             pccard_mfc(sc)));
 240
 241         mtx_lock(&Giant);
 242         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 243                 if (STAILQ_EMPTY(&pf->cfe_head))
 244                         continue;
 245                 ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF,
 246                     M_WAITOK | M_ZERO);
 247                 resource_list_init(&ivar->resources);
 248                 child = device_add_child(dev, NULL, -1);
 249                 device_set_ivars(child, ivar);
 250                 ivar->pf = pf;
 251                 pf->dev = child;
 252                 pccard_probe_and_attach_child(dev, child, pf);
 253         }
 254         mtx_unlock(&Giant);
 255         return (0);
 256 }
 257
 258 static int
 259 pccard_probe_and_attach_child(device_t dev, device_t child,
 260     struct pccard_function *pf)
 261 {
 262         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 263         int error;
 264
 265         /*
 266          * In NetBSD, the drivers are responsible for activating each
 267          * function of a card and selecting the config to use.  In
 268          * FreeBSD, all that's done automatically in the typical lazy
 269          * way we do device resoruce allocation (except we pick the
 270          * cfe up front).  This is the biggest depature from the
 271          * inherited NetBSD model, apart from the FreeBSD resource code.
 272          *
 273          * This seems to work well in practice for most cards.
 274          * However, there are two cases that are problematic.  If a
 275          * driver wishes to pick and chose which config entry to use,
 276          * then this method falls down.  These are usually older
 277          * cards.  In addition, there are some cards that have
 278          * multiple hardware units on the cards, but presents only one
 279          * CIS chain.  These cards are combination cards, but only one
 280          * of these units can be on at a time.
 281          *
 282          * To overcome this limitation, while preserving the basic
 283          * model, the probe routine can select a cfe and try to
 284          * activate it.  If that succeeds, then we'll keep track of
 285          * and let that information persist until we attach the card.
 286          * Probe routines that do this MUST return 0, and cannot
 287          * participate in the bidding process for a device.  This
 288          * seems harsh until you realize that if a probe routine knows
 289          * enough to override the cfe we pick, then chances are very
 290          * very good that it is the only driver that could hope to
 291          * cope with the card.  Bidding is for generic drivers, and
 292          * while some of them may also match, none of them will do
 293          * configuration override.
 294          */
 295         error = device_probe(child);
 296         if (error != 0)
 297                 goto out;
 298         pccard_function_init(pf, -1);
 299         if (sc->sc_enabled_count == 0)
 300                 POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 301         if (pccard_function_enable(pf) == 0 &&
 302             pccard_set_default_descr(child) == 0 &&
 303             device_attach(child) == 0) {
 304                 DEVPRINTF((sc->dev, "function %d CCR at %d offset %#x "
 305                     "mask %#x: %#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n",
 306                     pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
 307                     pf->ccr_mask, pccard_ccr_read(pf, 0x00),
 308                     pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
 309                     pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
 310                     pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
 311                     pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
 312                 return (0);
 313         }
 314         error = ENXIO;
 315 out:;
 316         /*
 317          * Probe may fail AND also try to select a cfe, if so, free
 318          * it.  This is how we do cfe override.  Or the attach fails.
 319          * Either way, we have to clean up.
 320          */
 321         if (pf->cfe != NULL)
 322                 pccard_function_disable(pf);
 323         pf->cfe = NULL;
 324         pccard_function_free(pf);
 325         return error;
 326 }
 327
 328 static int
 329 pccard_detach_card(device_t dev)
 330 {
 331         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 332         struct pccard_function *pf;
 333         struct pccard_config_entry *cfe;
 334         struct pccard_ivar *devi;
 335         int state;
 336
 337         /*
 338          * We are running on either the PCCARD socket's event thread
 339          * or in user context detaching a device by user request.
 340          */
 341         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 342                 if (pf->dev == NULL)
 343                         continue;
 344                 state = device_get_state(pf->dev);
 345                 if (state == DS_ATTACHED || state == DS_BUSY)
 346                         device_detach(pf->dev);
 347                 if (pf->cfe != NULL)
 348                         pccard_function_disable(pf);
 349                 pccard_function_free(pf);
 350                 devi = PCCARD_IVAR(pf->dev);
 351                 device_delete_child(dev, pf->dev);
 352                 free(devi, M_DEVBUF);
 353         }
 354         if (sc->sc_enabled_count == 0)
 355                 POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
 356
 357         while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
 358                 while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
 359                         STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
 360                         free(cfe, M_DEVBUF);
 361                 }
 362                 STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
 363                 free(pf, M_DEVBUF);
 364         }
 365         STAILQ_INIT(&sc->card.pf_head);
 366         return (0);
 367 }
 368
 369 static const struct pccard_product *
 370 pccard_do_product_lookup(device_t bus, device_t dev,
 371     const struct pccard_product *tab, size_t ent_size,
 372     pccard_product_match_fn matchfn)
 373 {
 374         const struct pccard_product *ent;
 375         int matches;
 376         uint32_t vendor;
 377         uint32_t prod;
 378         const char *vendorstr;
 379         const char *prodstr;
 380         const char *cis3str;
 381         const char *cis4str;
 382
 383 #ifdef DIAGNOSTIC
 384         if (sizeof *ent > ent_size)
 385                 panic("pccard_product_lookup: bogus ent_size %jd",
 386                     (intmax_t) ent_size);
 387 #endif
 388         if (pccard_get_vendor(dev, &vendor))
 389                 return (NULL);
 390         if (pccard_get_product(dev, &prod))
 391                 return (NULL);
 392         if (pccard_get_vendor_str(dev, &vendorstr))
 393                 return (NULL);
 394         if (pccard_get_product_str(dev, &prodstr))
 395                 return (NULL);
 396         if (pccard_get_cis3_str(dev, &cis3str))
 397                 return (NULL);
 398         if (pccard_get_cis4_str(dev, &cis4str))
 399                 return (NULL);
 400         for (ent = tab; ent->pp_vendor != 0; ent =
 401             (const struct pccard_product *) ((const char *) ent + ent_size)) {
 402                 matches = 1;
 403                 if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
 404                     ent->pp_product == PCCARD_PRODUCT_ANY &&
 405                     ent->pp_cis[0] == NULL &&
 406                     ent->pp_cis[1] == NULL) {
 407                         if (ent->pp_name)
 408                                 device_printf(dev,
 409                                     "Total wildcard entry ignored for %s\n",
 410                                     ent->pp_name);
 411                         continue;
 412                 }
 413                 if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
 414                     vendor != ent->pp_vendor)
 415                         matches = 0;
 416                 if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
 417                     prod != ent->pp_product)
 418                         matches = 0;
 419                 if (matches && ent->pp_cis[0] &&
 420                     (vendorstr == NULL ||
 421                     strcmp(ent->pp_cis[0], vendorstr) != 0))
 422                         matches = 0;
 423                 if (matches && ent->pp_cis[1] &&
 424                     (prodstr == NULL ||
 425                     strcmp(ent->pp_cis[1], prodstr) != 0))
 426                         matches = 0;
 427                 if (matches && ent->pp_cis[2] &&
 428                     (cis3str == NULL ||
 429                     strcmp(ent->pp_cis[2], cis3str) != 0))
 430                         matches = 0;
 431                 if (matches && ent->pp_cis[3] &&
 432                     (cis4str == NULL ||
 433                     strcmp(ent->pp_cis[3], cis4str) != 0))
 434                         matches = 0;
 435                 if (matchfn != NULL)
 436                         matches = (*matchfn)(dev, ent, matches);
 437                 if (matches)
 438                         return (ent);
 439         }
 440         return (NULL);
 441 }
 442
 443 /**
 444  * @brief pccard_select_cfe
 445  *
 446  * Select a cfe entry to use.  Should be called from the pccard's probe
 447  * routine after it knows for sure that it wants this card.
 448  *
 449  * XXX I think we need to make this symbol be static, ala the kobj stuff
 450  * we do for everything else.  This is a quick hack.
 451  */
 452 int
 453 pccard_select_cfe(device_t dev, int entry)
 454 {
 455         struct pccard_ivar *devi = PCCARD_IVAR(dev);
 456         struct pccard_function *pf = devi->pf;
 457
 458         pccard_function_init(pf, entry);
 459         return (pf->cfe ? 0 : ENOMEM);
 460 }
 461
 462 /*
 463  * Initialize a PCCARD function.  May be called as long as the function is
 464  * disabled.
 465  *
 466  * Note: pccard_function_init should not keep resources allocated.  It should
 467  * only set them up ala isa pnp, set the values in the rl lists, and return.
 468  * Any resource held after pccard_function_init is called is a bug.  However,
 469  * the bus routines to get the resources also assume that pccard_function_init
 470  * does this, so they need to be fixed too.
 471  */
 472 static void
 473 pccard_function_init(struct pccard_function *pf, int entry)
 474 {
 475         struct pccard_config_entry *cfe;
 476         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 477         struct resource_list *rl = &devi->resources;
 478         struct resource_list_entry *rle;
 479         struct resource *r = NULL;
 480         struct pccard_ce_iospace *ios;
 481         struct pccard_ce_memspace *mems;
 482         device_t bus;
 483         rman_res_t start, end, len;
 484         int i, rid, spaces;
 485
 486         if (pf->pf_flags & PFF_ENABLED) {
 487                 printf("pccard_function_init: function is enabled");
 488                 return;
 489         }
 490
 491         /*
 492          * Driver probe routine requested a specific entry already
 493          * that succeeded.
 494          */
 495         if (pf->cfe != NULL)
 496                 return;
 497
 498         /*
 499          * walk the list of configuration entries until we find one that
 500          * we can allocate all the resources to.
 501          */
 502         bus = device_get_parent(pf->dev);
 503         STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
 504                 if (cfe->iftype != PCCARD_IFTYPE_IO)
 505                         continue;
 506                 if (entry != -1 && cfe->number != entry)
 507                         continue;
 508                 spaces = 0;
 509                 for (i = 0; i < cfe->num_iospace; i++) {
 510                         ios = cfe->iospace + i;
 511                         start = ios->start;
 512                         if (start)
 513                                 end = start + ios->length - 1;
 514                         else
 515                                 end = ~0;
 516                         DEVPRINTF((bus, "I/O rid %d start %#jx end %#jx\n",
 517                             i, start, end));
 518                         rid = i;
 519                         len = ios->length;
 520                         r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid,
 521                             start, end, len, rman_make_alignment_flags(len));
 522                         if (r == NULL) {
 523                                 DEVPRINTF((bus, "I/O rid %d failed\n", i));
 524                                 goto not_this_one;
 525                         }
 526                         rle = resource_list_add(rl, SYS_RES_IOPORT,
 527                             rid, rman_get_start(r), rman_get_end(r), len);
 528                         if (rle == NULL)
 529                                 panic("Cannot add resource rid %d IOPORT", rid);
 530                         rle->res = r;
 531                         spaces++;
 532                 }
 533                 for (i = 0; i < cfe->num_memspace; i++) {
 534                         mems = cfe->memspace + i;
 535                         start = mems->cardaddr + mems->hostaddr;
 536                         if (start)
 537                                 end = start + mems->length - 1;
 538                         else
 539                                 end = ~0;
 540                         DEVPRINTF((bus, "Memory rid %d start %#jx end %#jx\ncardaddr %#jx hostaddr %#jx length %#jx\n",
 541                             i, start, end, mems->cardaddr, mems->hostaddr,
 542                             mems->length));
 543                         rid = i;
 544                         len = mems->length;
 545                         r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid,
 546                             start, end, len, rman_make_alignment_flags(len));
 547                         if (r == NULL) {
 548                                 DEVPRINTF((bus, "Memory rid %d failed\n", i));
 549 //                              goto not_this_one;
 550                                 continue;
 551                         }
 552                         rle = resource_list_add(rl, SYS_RES_MEMORY,
 553                             rid, rman_get_start(r), rman_get_end(r), len);
 554                         if (rle == NULL)
 555                                 panic("Cannot add resource rid %d MEM", rid);
 556                         rle->res = r;
 557                         spaces++;
 558                 }
 559                 if (spaces == 0) {
 560                         DEVPRINTF((bus, "Neither memory nor I/O mapped\n"));
 561                         goto not_this_one;
 562                 }
 563                 if (cfe->irqmask) {
 564                         rid = 0;
 565                         r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid,
 566                             RF_SHAREABLE);
 567                         if (r == NULL) {
 568                                 DEVPRINTF((bus, "IRQ rid %d failed\n", rid));
 569                                 goto not_this_one;
 570                         }
 571                         rle = resource_list_add(rl, SYS_RES_IRQ, rid,
 572                             rman_get_start(r), rman_get_end(r), 1);
 573                         if (rle == NULL)
 574                                 panic("Cannot add resource rid %d IRQ", rid);
 575                         rle->res = r;
 576                 }
 577                 /* If we get to here, we've allocated all we need */
 578                 pf->cfe = cfe;
 579                 break;
 580             not_this_one:;
 581                 DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
 582                     cfe->number));
 583                 resource_list_purge(rl);
 584         }
 585 }
 586
 587 /*
 588  * Free resources allocated by pccard_function_init(), May be called as long
 589  * as the function is disabled.
 590  *
 591  * NOTE: This function should be unnecessary.  pccard_function_init should
 592  * never keep resources initialized.
 593  */
 594 static void
 595 pccard_function_free(struct pccard_function *pf)
 596 {
 597         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 598         struct resource_list_entry *rle;
 599
 600         if (pf->pf_flags & PFF_ENABLED) {
 601                 printf("pccard_function_free: function is enabled");
 602                 return;
 603         }
 604
 605         STAILQ_FOREACH(rle, &devi->resources, link) {
 606                 if (rle->res) {
 607                         if (rman_get_device(rle->res) != pf->sc->dev)
 608                                 device_printf(pf->sc->dev,
 609                                     "function_free: Resource still owned by "
 610                                     "child, oops. "
 611                                     "(type=%d, rid=%d, addr=%#jx)\n",
 612                                     rle->type, rle->rid,
 613                                     rman_get_start(rle->res));
 614                         BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
 615                             pf->sc->dev, rle->type, rle->rid, rle->res);
 616                         rle->res = NULL;
 617                 }
 618         }
 619         resource_list_free(&devi->resources);
 620 }
 621
 622 static void
 623 pccard_mfc_adjust_iobase(struct pccard_function *pf, rman_res_t addr,
 624     rman_res_t offset, rman_res_t size)
 625 {
 626         bus_size_t iosize, tmp;
 627
 628         if (addr != 0) {
 629                 if (pf->pf_mfc_iomax == 0) {
 630                         pf->pf_mfc_iobase = addr + offset;
 631                         pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
 632                 } else {
 633                         /* this makes the assumption that nothing overlaps */
 634                         if (pf->pf_mfc_iobase > addr + offset)
 635                                 pf->pf_mfc_iobase = addr + offset;
 636                         if (pf->pf_mfc_iomax < addr + offset + size)
 637                                 pf->pf_mfc_iomax = addr + offset + size;
 638                 }
 639         }
 640
 641         tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
 642         /* round up to nearest (2^n)-1 */
 643         for (iosize = 1; iosize < tmp; iosize <<= 1)
 644                 ;
 645         iosize--;
 646
 647         DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n",
 648             (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1)));
 649         pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
 650             pf->pf_mfc_iobase & 0xff);
 651         pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
 652             (pf->pf_mfc_iobase >> 8) & 0xff);
 653         pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
 654         pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
 655         pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
 656 }
 657
 658 /* Enable a PCCARD function */
 659 static int
 660 pccard_function_enable(struct pccard_function *pf)
 661 {
 662         struct pccard_function *tmp;
 663         int reg;
 664         device_t dev = pf->sc->dev;
 665
 666         if (pf->cfe == NULL) {
 667                 DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
 668                 return (ENOMEM);
 669         }
 670
 671         if (pf->pf_flags & PFF_ENABLED)
 672                 return (0);
 673         pf->sc->sc_enabled_count++;
 674
 675         /*
 676          * it's possible for different functions' CCRs to be in the same
 677          * underlying page.  Check for that.
 678          */
 679         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 680                 if ((tmp->pf_flags & PFF_ENABLED) &&
 681                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 682                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 683                     (tmp->ccr_base - tmp->pf_ccr_offset +
 684                     tmp->pf_ccr_realsize))) {
 685                         pf->pf_ccrt = tmp->pf_ccrt;
 686                         pf->pf_ccrh = tmp->pf_ccrh;
 687                         pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
 688
 689                         /*
 690                          * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
 691                          * tmp->ccr_base) + pf->ccr_base;
 692                          */
 693                         /* pf->pf_ccr_offset =
 694                             (tmp->pf_ccr_offset + pf->ccr_base) -
 695                             tmp->ccr_base; */
 696                         pf->pf_ccr_window = tmp->pf_ccr_window;
 697                         break;
 698                 }
 699         }
 700         if (tmp == NULL) {
 701                 pf->ccr_rid = 0;
 702                 pf->ccr_res = bus_alloc_resource_anywhere(dev, SYS_RES_MEMORY,
 703                     &pf->ccr_rid, PCCARD_MEM_PAGE_SIZE, RF_ACTIVE);
 704                 if (!pf->ccr_res)
 705                         goto bad;
 706                 DEVPRINTF((dev, "ccr_res == %#jx-%#jx, base=%#x\n",
 707                     rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
 708                     pf->ccr_base));
 709                 CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
 710                     pf->ccr_rid, PCCARD_A_MEM_ATTR);
 711                 CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
 712                     pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
 713                 pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
 714                 pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
 715                 pf->pf_ccr_realsize = 1;
 716         }
 717
 718         reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
 719         reg |= PCCARD_CCR_OPTION_LEVIREQ;
 720         if (pccard_mfc(pf->sc)) {
 721                 reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
 722                         PCCARD_CCR_OPTION_ADDR_DECODE);
 723                 /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
 724         }
 725         pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
 726
 727         reg = 0;
 728         if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
 729                 reg |= PCCARD_CCR_STATUS_IOIS8;
 730         if (pf->cfe->flags & PCCARD_CFE_AUDIO)
 731                 reg |= PCCARD_CCR_STATUS_AUDIO;
 732         pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
 733
 734         pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
 735
 736         if (pccard_mfc(pf->sc))
 737                 pccard_mfc_adjust_iobase(pf, 0, 0, 0);
 738
 739 #ifdef PCCARDDEBUG
 740         if (pccard_debug) {
 741                 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 742                         device_printf(tmp->sc->dev,
 743                             "function %d CCR at %d offset %#x: "
 744                             "%#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n",
 745                             tmp->number, tmp->pf_ccr_window,
 746                             tmp->pf_ccr_offset,
 747                             pccard_ccr_read(tmp, 0x00),
 748                             pccard_ccr_read(tmp, 0x02),
 749                             pccard_ccr_read(tmp, 0x04),
 750                             pccard_ccr_read(tmp, 0x06),
 751                             pccard_ccr_read(tmp, 0x0A),
 752                             pccard_ccr_read(tmp, 0x0C),
 753                             pccard_ccr_read(tmp, 0x0E),
 754                             pccard_ccr_read(tmp, 0x10),
 755                             pccard_ccr_read(tmp, 0x12));
 756                 }
 757         }
 758 #endif
 759         pf->pf_flags |= PFF_ENABLED;
 760         return (0);
 761
 762  bad:
 763         /*
 764          * Decrement the reference count, and power down the socket, if
 765          * necessary.
 766          */
 767         pf->sc->sc_enabled_count--;
 768         DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
 769
 770         return (1);
 771 }
 772
 773 /* Disable PCCARD function. */
 774 static void
 775 pccard_function_disable(struct pccard_function *pf)
 776 {
 777         struct pccard_function *tmp;
 778         device_t dev = pf->sc->dev;
 779
 780         if (pf->cfe == NULL)
 781                 panic("pccard_function_disable: function not initialized");
 782
 783         if ((pf->pf_flags & PFF_ENABLED) == 0)
 784                 return;
 785         if (pf->intr_handler != NULL) {
 786                 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 787                 struct resource_list_entry *rle =
 788                     resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
 789                 if (rle == NULL)
 790                         panic("Can't disable an interrupt with no IRQ res\n");
 791                 BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
 792                     pf->intr_handler_cookie);
 793         }
 794
 795         /*
 796          * it's possible for different functions' CCRs to be in the same
 797          * underlying page.  Check for that.  Note we mark us as disabled
 798          * first to avoid matching ourself.
 799          */
 800
 801         pf->pf_flags &= ~PFF_ENABLED;
 802         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 803                 if ((tmp->pf_flags & PFF_ENABLED) &&
 804                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 805                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 806                     (tmp->ccr_base - tmp->pf_ccr_offset +
 807                     tmp->pf_ccr_realsize)))
 808                         break;
 809         }
 810
 811         /* Not used by anyone else; unmap the CCR. */
 812         if (tmp == NULL) {
 813                 bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
 814                     pf->ccr_res);
 815                 pf->ccr_res = NULL;
 816         }
 817
 818         /*
 819          * Decrement the reference count, and power down the socket, if
 820          * necessary.
 821          */
 822         pf->sc->sc_enabled_count--;
 823 }
 824
 825 #define PCCARD_NPORT    2
 826 #define PCCARD_NMEM     5
 827 #define PCCARD_NIRQ     1
 828 #define PCCARD_NDRQ     0
 829
 830 static int
 831 pccard_probe(device_t dev)
 832 {
 833         device_set_desc(dev, "16-bit PCCard bus");
 834         return (0);
 835 }
 836
 837 static int
 838 pccard_attach(device_t dev)
 839 {
 840         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 841         int err;
 842
 843         sc->dev = dev;
 844         sc->sc_enabled_count = 0;
 845         if ((err = pccard_device_create(sc)) != 0)
 846                 return  (err);
 847         STAILQ_INIT(&sc->card.pf_head);
 848         return (bus_generic_attach(dev));
 849 }
 850
 851 static int
 852 pccard_detach(device_t dev)
 853 {
 854         pccard_detach_card(dev);
 855         pccard_device_destroy(device_get_softc(dev));
 856         return (0);
 857 }
 858
 859 static int
 860 pccard_suspend(device_t self)
 861 {
 862         pccard_detach_card(self);
 863         return (0);
 864 }
 865
 866 static
 867 int
 868 pccard_resume(device_t self)
 869 {
 870         return (0);
 871 }
 872
 873 static void
 874 pccard_print_resources(struct resource_list *rl, const char *name, int type,
 875     int count, const char *format)
 876 {
 877         struct resource_list_entry *rle;
 878         int printed;
 879         int i;
 880
 881         printed = 0;
 882         for (i = 0; i < count; i++) {
 883                 rle = resource_list_find(rl, type, i);
 884                 if (rle != NULL) {
 885                         if (printed == 0)
 886                                 printf(" %s ", name);
 887                         else if (printed > 0)
 888                                 printf(",");
 889                         printed++;
 890                         printf(format, rle->start);
 891                         if (rle->count > 1) {
 892                                 printf("-");
 893                                 printf(format, rle->start + rle->count - 1);
 894                         }
 895                 } else if (i > 3) {
 896                         /* check the first few regardless */
 897                         break;
 898                 }
 899         }
 900 }
 901
 902 static int
 903 pccard_print_child(device_t dev, device_t child)
 904 {
 905         struct pccard_ivar *devi = PCCARD_IVAR(child);
 906         struct resource_list *rl = &devi->resources;
 907         int retval = 0;
 908
 909         retval += bus_print_child_header(dev, child);
 910         retval += printf(" at");
 911
 912         if (devi != NULL) {
 913                 pccard_print_resources(rl, "port", SYS_RES_IOPORT,
 914                     PCCARD_NPORT, "%#lx");
 915                 pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
 916                     PCCARD_NMEM, "%#lx");
 917                 pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
 918                     "%ld");
 919                 pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
 920                     "%ld");
 921                 retval += printf(" function %d config %d", devi->pf->number,
 922                     devi->pf->cfe->number);
 923         }
 924
 925         retval += bus_print_child_footer(dev, child);
 926
 927         return (retval);
 928 }
 929
 930 static int
 931 pccard_set_resource(device_t dev, device_t child, int type, int rid,
 932     rman_res_t start, rman_res_t count)
 933 {
 934         struct pccard_ivar *devi = PCCARD_IVAR(child);
 935         struct resource_list *rl = &devi->resources;
 936
 937         if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
 938             && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
 939                 return (EINVAL);
 940         if (rid < 0)
 941                 return (EINVAL);
 942         if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
 943                 return (EINVAL);
 944         if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
 945                 return (EINVAL);
 946         if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
 947                 return (EINVAL);
 948         if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
 949                 return (EINVAL);
 950
 951         resource_list_add(rl, type, rid, start, start + count - 1, count);
 952         if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
 953             type, &rid, start, start + count - 1, count, 0))
 954                 return 0;
 955         else
 956                 return ENOMEM;
 957 }
 958
 959 static int
 960 pccard_get_resource(device_t dev, device_t child, int type, int rid,
 961     rman_res_t *startp, rman_res_t *countp)
 962 {
 963         struct pccard_ivar *devi = PCCARD_IVAR(child);
 964         struct resource_list *rl = &devi->resources;
 965         struct resource_list_entry *rle;
 966
 967         rle = resource_list_find(rl, type, rid);
 968         if (rle == NULL)
 969                 return (ENOENT);
 970
 971         if (startp != NULL)
 972                 *startp = rle->start;
 973         if (countp != NULL)
 974                 *countp = rle->count;
 975
 976         return (0);
 977 }
 978
 979 static void
 980 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
 981 {
 982         struct pccard_ivar *devi = PCCARD_IVAR(child);
 983         struct resource_list *rl = &devi->resources;
 984         resource_list_delete(rl, type, rid);
 985 }
 986
 987 static int
 988 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
 989     u_long flags)
 990 {
 991         return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
 992             rid, flags));
 993 }
 994
 995 static int
 996 pccard_set_memory_offset(device_t dev, device_t child, int rid,
 997     uint32_t offset, uint32_t *deltap)
 998
 999 {
1000         return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
1001             offset, deltap));
1002 }
1003
1004 static void
1005 pccard_probe_nomatch(device_t bus, device_t child)
1006 {
1007         struct pccard_ivar *devi = PCCARD_IVAR(child);
1008         struct pccard_function *pf = devi->pf;
1009         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1010         int i;
1011
1012         device_printf(bus, "<unknown card>");
1013         printf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) "
1014             "at function %d\n", sc->card.manufacturer, sc->card.product,
1015             pf->function, pf->number);
1016         device_printf(bus, "   CIS info: ");
1017         for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++)
1018                 printf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]);
1019         printf("\n");
1020         return;
1021 }
1022
1023 static int
1024 pccard_child_location_str(device_t bus, device_t child, char *buf,
1025     size_t buflen)
1026 {
1027         struct pccard_ivar *devi = PCCARD_IVAR(child);
1028         struct pccard_function *pf = devi->pf;
1029
1030         snprintf(buf, buflen, "function=%d", pf->number);
1031         return (0);
1032 }
1033
1034 static int
1035 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
1036     size_t buflen)
1037 {
1038         struct pccard_ivar *devi = PCCARD_IVAR(child);
1039         struct pccard_function *pf = devi->pf;
1040         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1041         struct sbuf sb;
1042
1043         sbuf_new(&sb, buf, buflen, SBUF_FIXEDLEN | SBUF_INCLUDENUL);
1044         sbuf_printf(&sb, "manufacturer=0x%04x product=0x%04x "
1045             "cisvendor=\"", sc->card.manufacturer, sc->card.product);
1046         devctl_safe_quote_sb(&sb, sc->card.cis1_info[0]);
1047         sbuf_printf(&sb, "\" cisproduct=\"");
1048         devctl_safe_quote_sb(&sb, sc->card.cis1_info[1]);
1049         sbuf_printf(&sb, "\" function_type=%d", pf->function);
1050         sbuf_finish(&sb);
1051         sbuf_delete(&sb);
1052
1053         return (0);
1054 }
1055
1056 static int
1057 pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result)
1058 {
1059         struct pccard_ivar *devi = PCCARD_IVAR(child);
1060         struct pccard_function *pf = devi->pf;
1061         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1062
1063         if (!pf)
1064                 panic("No pccard function pointer");
1065         switch (which) {
1066         default:
1067                 return (EINVAL);
1068         case PCCARD_IVAR_FUNCE_DISK:
1069                 *(uint16_t *)result = pf->pf_funce_disk_interface |
1070                     (pf->pf_funce_disk_power << 8);
1071                 break;
1072         case PCCARD_IVAR_ETHADDR:
1073                 bcopy(pf->pf_funce_lan_nid, result, ETHER_ADDR_LEN);
1074                 break;
1075         case PCCARD_IVAR_VENDOR:
1076                 *(uint32_t *)result = sc->card.manufacturer;
1077                 break;
1078         case PCCARD_IVAR_PRODUCT:
1079                 *(uint32_t *)result = sc->card.product;
1080                 break;
1081         case PCCARD_IVAR_PRODEXT:
1082                 *(uint16_t *)result = sc->card.prodext;
1083                 break;
1084         case PCCARD_IVAR_FUNCTION:
1085                 *(uint32_t *)result = pf->function;
1086                 break;
1087         case PCCARD_IVAR_FUNCTION_NUMBER:
1088                 *(uint32_t *)result = pf->number;
1089                 break;
1090         case PCCARD_IVAR_VENDOR_STR:
1091                 *(const char **)result = sc->card.cis1_info[0];
1092                 break;
1093         case PCCARD_IVAR_PRODUCT_STR:
1094                 *(const char **)result = sc->card.cis1_info[1];
1095                 break;
1096         case PCCARD_IVAR_CIS3_STR:
1097                 *(const char **)result = sc->card.cis1_info[2];
1098                 break;
1099         case PCCARD_IVAR_CIS4_STR:
1100                 *(const char **)result = sc->card.cis1_info[3];
1101                 break;
1102         }
1103         return (0);
1104 }
1105
1106 static void
1107 pccard_driver_added(device_t dev, driver_t *driver)
1108 {
1109         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1110         struct pccard_function *pf;
1111         device_t child;
1112
1113         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1114                 if (STAILQ_EMPTY(&pf->cfe_head))
1115                         continue;
1116                 child = pf->dev;
1117                 if (device_get_state(child) != DS_NOTPRESENT)
1118                         continue;
1119                 pccard_probe_and_attach_child(dev, child, pf);
1120         }
1121         return;
1122 }
1123
1124 static struct resource *
1125 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1126     rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
1127 {
1128         struct pccard_ivar *dinfo;
1129         struct resource_list_entry *rle = NULL;
1130         int passthrough = (device_get_parent(child) != dev);
1131         int isdefault = (RMAN_IS_DEFAULT_RANGE(start, end) && count == 1);
1132         struct resource *r = NULL;
1133
1134         /* XXX I'm no longer sure this is right */
1135         if (passthrough) {
1136                 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1137                     type, rid, start, end, count, flags));
1138         }
1139
1140         dinfo = device_get_ivars(child);
1141         rle = resource_list_find(&dinfo->resources, type, *rid);
1142
1143         if (rle == NULL && isdefault)
1144                 return (NULL);  /* no resource of that type/rid */
1145         if (rle == NULL || rle->res == NULL) {
1146                 /* XXX Need to adjust flags */
1147                 r = bus_alloc_resource(dev, type, rid, start, end,
1148                   count, flags);
1149                 if (r == NULL)
1150                     goto bad;
1151                 resource_list_add(&dinfo->resources, type, *rid,
1152                   rman_get_start(r), rman_get_end(r), count);
1153                 rle = resource_list_find(&dinfo->resources, type, *rid);
1154                 if (!rle)
1155                     goto bad;
1156                 rle->res = r;
1157         }
1158         /*
1159          * If dev doesn't own the device, then we can't give this device
1160          * out.
1161          */
1162         if (rman_get_device(rle->res) != dev)
1163                 return (NULL);
1164         rman_set_device(rle->res, child);
1165         if (flags & RF_ACTIVE)
1166                 BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res);
1167         return (rle->res);
1168 bad:;
1169         device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1170         return (NULL);
1171 }
1172
1173 static int
1174 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1175     struct resource *r)
1176 {
1177         struct pccard_ivar *dinfo;
1178         int passthrough = (device_get_parent(child) != dev);
1179         struct resource_list_entry *rle = NULL;
1180
1181         if (passthrough)
1182                 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1183                     type, rid, r);
1184
1185         dinfo = device_get_ivars(child);
1186
1187         rle = resource_list_find(&dinfo->resources, type, rid);
1188
1189         if (!rle) {
1190                 device_printf(dev, "Allocated resource not found, "
1191                     "%d %#x %#jx %#jx\n",
1192                     type, rid, rman_get_start(r), rman_get_size(r));
1193                 return ENOENT;
1194         }
1195         if (!rle->res) {
1196                 device_printf(dev, "Allocated resource not recorded\n");
1197                 return ENOENT;
1198         }
1199         /*
1200          * Deactivate the resource (since it is being released), and
1201          * assign it to the bus.
1202          */
1203         BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res);
1204         rman_set_device(rle->res, dev);
1205         return (0);
1206 }
1207
1208 static void
1209 pccard_child_detached(device_t parent, device_t dev)
1210 {
1211         struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1212         struct pccard_function *pf = ivar->pf;
1213
1214         pccard_function_disable(pf);
1215 }
1216
1217 static int
1218 pccard_filter(void *arg)
1219 {
1220         struct pccard_function *pf = (struct pccard_function*) arg;
1221         int reg;
1222         int doisr = 1;
1223
1224         /*
1225          * MFC cards know if they interrupted, so we have to ack the
1226          * interrupt and call the ISR.  Non-MFC cards don't have these
1227          * bits, so they always get called.  Many non-MFC cards have
1228          * this bit set always upon read, but some do not.
1229          *
1230          * We always ack the interrupt, even if there's no ISR
1231          * for the card.  This is done on the theory that acking
1232          * the interrupt will pacify the card enough to keep an
1233          * interrupt storm from happening.  Of course this won't
1234          * help in the non-MFC case.
1235          *
1236          * This has no impact for MPSAFEness of the client drivers.
1237          * We register this with whatever flags the intr_handler
1238          * was registered with.  All these functions are MPSAFE.
1239          */
1240         if (pccard_mfc(pf->sc)) {
1241                 reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1242                 if (reg & PCCARD_CCR_STATUS_INTR)
1243                         pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1244                             reg & ~PCCARD_CCR_STATUS_INTR);
1245                 else
1246                         doisr = 0;
1247         }
1248         if (doisr) {
1249                 if (pf->intr_filter != NULL)
1250                         return (pf->intr_filter(pf->intr_handler_arg));
1251                 return (FILTER_SCHEDULE_THREAD);
1252         }
1253         return (FILTER_STRAY);
1254 }
1255
1256 static void
1257 pccard_intr(void *arg)
1258 {
1259         struct pccard_function *pf = (struct pccard_function*) arg;
1260
1261         pf->intr_handler(pf->intr_handler_arg);
1262 }
1263
1264 static int
1265 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1266     int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg,
1267     void **cookiep)
1268 {
1269         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1270         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1271         struct pccard_function *pf = ivar->pf;
1272         int err;
1273
1274         if (pf->intr_filter != NULL || pf->intr_handler != NULL)
1275                 panic("Only one interrupt handler per function allowed");
1276         pf->intr_filter = filt;
1277         pf->intr_handler = intr;
1278         pf->intr_handler_arg = arg;
1279         err = bus_generic_setup_intr(dev, child, irq, flags, pccard_filter,
1280             intr ? pccard_intr : NULL, pf, cookiep);
1281         if (err != 0) {
1282                 pf->intr_filter = NULL;
1283                 pf->intr_handler = NULL;
1284                 return (err);
1285         }
1286         pf->intr_handler_cookie = *cookiep;
1287         if (pccard_mfc(sc)) {
1288                 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1289                     pccard_ccr_read(pf, PCCARD_CCR_OPTION) |
1290                     PCCARD_CCR_OPTION_IREQ_ENABLE);
1291         }
1292         return (0);
1293 }
1294
1295 static int
1296 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1297     void *cookie)
1298 {
1299         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1300         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1301         struct pccard_function *pf = ivar->pf;
1302         int ret;
1303
1304         if (pccard_mfc(sc)) {
1305                 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1306                     pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
1307                     ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1308         }
1309         ret = bus_generic_teardown_intr(dev, child, r, cookie);
1310         if (ret == 0) {
1311                 pf->intr_handler = NULL;
1312                 pf->intr_handler_arg = NULL;
1313                 pf->intr_handler_cookie = NULL;
1314         }
1315
1316         return (ret);
1317 }
1318
1319 static int
1320 pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
1321     struct resource *r)
1322 {
1323         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1324         struct pccard_function *pf = ivar->pf;
1325
1326         switch(type) {
1327         case SYS_RES_IOPORT:
1328                 /*
1329                  * We need to adjust IOBASE[01] and IOSIZE if we're an MFC
1330                  * card.
1331                  */
1332                 if (pccard_mfc(pf->sc))
1333                         pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1334                             rman_get_size(r));
1335                 break;
1336         default:
1337                 break;
1338         }
1339         return (bus_generic_activate_resource(brdev, child, type, rid, r));
1340 }
1341
1342 static int
1343 pccard_deactivate_resource(device_t brdev, device_t child, int type,
1344     int rid, struct resource *r)
1345 {
1346         /* XXX undo pccard_activate_resource? XXX */
1347         return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
1348 }
1349
1350 static int
1351 pccard_attr_read_impl(device_t brdev, device_t child, uint32_t offset,
1352     uint8_t *val)
1353 {
1354         struct pccard_ivar *devi = PCCARD_IVAR(child);
1355         struct pccard_function *pf = devi->pf;
1356
1357         /*
1358          * Optimization.  Most of the time, devices want to access
1359          * the same page of the attribute memory that the CCR is in.
1360          * We take advantage of this fact here.
1361          */
1362         if (offset / PCCARD_MEM_PAGE_SIZE ==
1363             pf->ccr_base / PCCARD_MEM_PAGE_SIZE)
1364                 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
1365                     offset % PCCARD_MEM_PAGE_SIZE);
1366         else {
1367                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset,
1368                     &offset);
1369                 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, offset);
1370                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base,
1371                     &offset);
1372         }
1373         return 0;
1374 }
1375
1376 static int
1377 pccard_attr_write_impl(device_t brdev, device_t child, uint32_t offset,
1378     uint8_t val)
1379 {
1380         struct pccard_ivar *devi = PCCARD_IVAR(child);
1381         struct pccard_function *pf = devi->pf;
1382
1383         /*
1384          * Optimization.  Most of the time, devices want to access
1385          * the same page of the attribute memory that the CCR is in.
1386          * We take advantage of this fact here.
1387          */
1388         if (offset / PCCARD_MEM_PAGE_SIZE ==
1389             pf->ccr_base / PCCARD_MEM_PAGE_SIZE)
1390                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
1391                     offset % PCCARD_MEM_PAGE_SIZE, val);
1392         else {
1393                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset,
1394                     &offset);
1395                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, offset, val);
1396                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base,
1397                     &offset);
1398         }
1399
1400         return 0;
1401 }
1402
1403 static int
1404 pccard_ccr_read_impl(device_t brdev, device_t child, uint32_t offset,
1405     uint8_t *val)
1406 {
1407         struct pccard_ivar *devi = PCCARD_IVAR(child);
1408
1409         *val = pccard_ccr_read(devi->pf, offset);
1410         DEVPRINTF((child, "ccr_read of %#x (%#x) is %#x\n", offset,
1411           devi->pf->pf_ccr_offset, *val));
1412         return 0;
1413 }
1414
1415 static int
1416 pccard_ccr_write_impl(device_t brdev, device_t child, uint32_t offset,
1417     uint8_t val)
1418 {
1419         struct pccard_ivar *devi = PCCARD_IVAR(child);
1420         struct pccard_function *pf = devi->pf;
1421
1422         /*
1423          * Can't use pccard_ccr_write since client drivers may access
1424          * registers not contained in the 'mask' if they are non-standard.
1425          */
1426         DEVPRINTF((child, "ccr_write of %#x to %#x (%#x)\n", val, offset,
1427           devi->pf->pf_ccr_offset));
1428         bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, pf->pf_ccr_offset + offset,
1429             val);
1430         return 0;
1431 }
1432
1433
1434 static device_method_t pccard_methods[] = {
1435         /* Device interface */
1436         DEVMETHOD(device_probe,         pccard_probe),
1437         DEVMETHOD(device_attach,        pccard_attach),
1438         DEVMETHOD(device_detach,        pccard_detach),
1439         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
1440         DEVMETHOD(device_suspend,       pccard_suspend),
1441         DEVMETHOD(device_resume,        pccard_resume),
1442
1443         /* Bus interface */
1444         DEVMETHOD(bus_print_child,      pccard_print_child),
1445         DEVMETHOD(bus_driver_added,     pccard_driver_added),
1446         DEVMETHOD(bus_child_detached,   pccard_child_detached),
1447         DEVMETHOD(bus_alloc_resource,   pccard_alloc_resource),
1448         DEVMETHOD(bus_release_resource, pccard_release_resource),
1449         DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1450         DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
1451         DEVMETHOD(bus_setup_intr,       pccard_setup_intr),
1452         DEVMETHOD(bus_teardown_intr,    pccard_teardown_intr),
1453         DEVMETHOD(bus_set_resource,     pccard_set_resource),
1454         DEVMETHOD(bus_get_resource,     pccard_get_resource),
1455         DEVMETHOD(bus_delete_resource,  pccard_delete_resource),
1456         DEVMETHOD(bus_probe_nomatch,    pccard_probe_nomatch),
1457         DEVMETHOD(bus_read_ivar,        pccard_read_ivar),
1458         DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1459         DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1460
1461         /* Card Interface */
1462         DEVMETHOD(card_set_res_flags,   pccard_set_res_flags),
1463         DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1464         DEVMETHOD(card_attach_card,     pccard_attach_card),
1465         DEVMETHOD(card_detach_card,     pccard_detach_card),
1466         DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1467         DEVMETHOD(card_cis_scan,        pccard_scan_cis),
1468         DEVMETHOD(card_attr_read,       pccard_attr_read_impl),
1469         DEVMETHOD(card_attr_write,      pccard_attr_write_impl),
1470         DEVMETHOD(card_ccr_read,        pccard_ccr_read_impl),
1471         DEVMETHOD(card_ccr_write,       pccard_ccr_write_impl),
1472
1473         { 0, 0 }
1474 };
1475
1476 static driver_t pccard_driver = {
1477         "pccard",
1478         pccard_methods,
1479         sizeof(struct pccard_softc)
1480 };
1481
1482 devclass_t      pccard_devclass;
1483
1484 /* Maybe we need to have a slot device? */
1485 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
1486 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
1487 MODULE_VERSION(pccard, 1);