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/sysctl.h>
  44 #include <sys/types.h>
  45
  46 #include <sys/bus.h>
  47 #include <machine/bus.h>
  48 #include <sys/rman.h>
  49 #include <machine/resource.h>
  50
  51 #include <net/ethernet.h>
  52
  53 #include <dev/pccard/pccardreg.h>
  54 #include <dev/pccard/pccardvar.h>
  55 #include <dev/pccard/pccardvarp.h>
  56 #include <dev/pccard/pccard_cis.h>
  57
  58 #include "power_if.h"
  59 #include "card_if.h"
  60
  61 #define PCCARDDEBUG
  62
  63 /* sysctl vars */
  64 static SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
  65
  66 int     pccard_debug = 0;
  67 SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RWTUN,
  68     &pccard_debug, 0,
  69   "pccard debug");
  70
  71 int     pccard_cis_debug = 0;
  72 SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RWTUN,
  73     &pccard_cis_debug, 0, "pccard CIS debug");
  74
  75 #ifdef PCCARDDEBUG
  76 #define DPRINTF(arg) if (pccard_debug) printf arg
  77 #define DEVPRINTF(arg) if (pccard_debug) device_printf arg
  78 #define PRVERBOSE(arg) printf arg
  79 #define DEVPRVERBOSE(arg) device_printf arg
  80 #else
  81 #define DPRINTF(arg)
  82 #define DEVPRINTF(arg)
  83 #define PRVERBOSE(arg) if (bootverbose) printf arg
  84 #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
  85 #endif
  86
  87 static int      pccard_ccr_read(struct pccard_function *pf, int ccr);
  88 static void     pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
  89 static int      pccard_attach_card(device_t dev);
  90 static int      pccard_detach_card(device_t dev);
  91 static void     pccard_function_init(struct pccard_function *pf, int entry);
  92 static void     pccard_function_free(struct pccard_function *pf);
  93 static int      pccard_function_enable(struct pccard_function *pf);
  94 static void     pccard_function_disable(struct pccard_function *pf);
  95 static int      pccard_probe(device_t dev);
  96 static int      pccard_attach(device_t dev);
  97 static int      pccard_detach(device_t dev);
  98 static void     pccard_print_resources(struct resource_list *rl,
  99                     const char *name, int type, int count, const char *format);
 100 static int      pccard_print_child(device_t dev, device_t child);
 101 static int      pccard_set_resource(device_t dev, device_t child, int type,
 102                     int rid, rman_res_t start, rman_res_t count);
 103 static int      pccard_get_resource(device_t dev, device_t child, int type,
 104                     int rid, rman_res_t *startp, rman_res_t *countp);
 105 static void     pccard_delete_resource(device_t dev, device_t child, int type,
 106                     int rid);
 107 static int      pccard_set_res_flags(device_t dev, device_t child, int type,
 108                     int rid, u_long flags);
 109 static int      pccard_set_memory_offset(device_t dev, device_t child, int rid,
 110                     uint32_t offset, uint32_t *deltap);
 111 static int      pccard_probe_and_attach_child(device_t dev, device_t child,
 112                     struct pccard_function *pf);
 113 static void     pccard_probe_nomatch(device_t cbdev, device_t child);
 114 static int      pccard_read_ivar(device_t bus, device_t child, int which,
 115                     uintptr_t *result);
 116 static void     pccard_driver_added(device_t dev, driver_t *driver);
 117 static struct resource *pccard_alloc_resource(device_t dev,
 118                     device_t child, int type, int *rid, rman_res_t start,
 119                     rman_res_t end, rman_res_t count, u_int flags);
 120 static int      pccard_release_resource(device_t dev, device_t child, int type,
 121                     int rid, struct resource *r);
 122 static void     pccard_child_detached(device_t parent, device_t dev);
 123 static int      pccard_filter(void *arg);
 124 static void     pccard_intr(void *arg);
 125 static int      pccard_setup_intr(device_t dev, device_t child,
 126                     struct resource *irq, int flags, driver_filter_t *filt,
 127                     driver_intr_t *intr, void *arg, void **cookiep);
 128 static int      pccard_teardown_intr(device_t dev, device_t child,
 129                     struct resource *r, void *cookie);
 130
 131 static const struct pccard_product *
 132 pccard_do_product_lookup(device_t bus, device_t dev,
 133                          const struct pccard_product *tab, size_t ent_size,
 134                          pccard_product_match_fn matchfn);
 135
 136
 137 static int
 138 pccard_ccr_read(struct pccard_function *pf, int ccr)
 139 {
 140         return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
 141             pf->pf_ccr_offset + ccr));
 142 }
 143
 144 static void
 145 pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
 146 {
 147         if ((pf->ccr_mask) & (1 << (ccr / 2))) {
 148                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
 149                     pf->pf_ccr_offset + ccr, val);
 150         }
 151 }
 152
 153 static int
 154 pccard_set_default_descr(device_t dev)
 155 {
 156         const char *vendorstr, *prodstr;
 157         uint32_t vendor, prod;
 158         char *str;
 159
 160         if (pccard_get_vendor_str(dev, &vendorstr))
 161                 return (0);
 162         if (pccard_get_product_str(dev, &prodstr))
 163                 return (0);
 164         if (vendorstr != NULL && prodstr != NULL) {
 165                 str = malloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF,
 166                     M_WAITOK);
 167                 sprintf(str, "%s %s", vendorstr, prodstr);
 168                 device_set_desc_copy(dev, str);
 169                 free(str, M_DEVBUF);
 170         } else {
 171                 if (pccard_get_vendor(dev, &vendor))
 172                         return (0);
 173                 if (pccard_get_product(dev, &prod))
 174                         return (0);
 175                 str = malloc(100, M_DEVBUF, M_WAITOK);
 176                 snprintf(str, 100, "vendor=%#x product=%#x", vendor, prod);
 177                 device_set_desc_copy(dev, str);
 178                 free(str, M_DEVBUF);
 179         }
 180         return (0);
 181 }
 182
 183 static int
 184 pccard_attach_card(device_t dev)
 185 {
 186         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 187         struct pccard_function *pf;
 188         struct pccard_ivar *ivar;
 189         device_t child;
 190         int i;
 191
 192         if (!STAILQ_EMPTY(&sc->card.pf_head)) {
 193                 if (bootverbose || pccard_debug)
 194                         device_printf(dev, "Card already inserted.\n");
 195         }
 196
 197         DEVPRINTF((dev, "chip_socket_enable\n"));
 198         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 199
 200         DEVPRINTF((dev, "read_cis\n"));
 201         pccard_read_cis(sc);
 202
 203         DEVPRINTF((dev, "check_cis_quirks\n"));
 204         pccard_check_cis_quirks(dev);
 205
 206         /*
 207          * bail now if the card has no functions, or if there was an error in
 208          * the cis.
 209          */
 210
 211         if (sc->card.error) {
 212                 device_printf(dev, "CARD ERROR!\n");
 213                 return (1);
 214         }
 215         if (STAILQ_EMPTY(&sc->card.pf_head)) {
 216                 device_printf(dev, "Card has no functions!\n");
 217                 return (1);
 218         }
 219
 220         if (bootverbose || pccard_debug)
 221                 pccard_print_cis(dev);
 222
 223         DEVPRINTF((dev, "functions scanning\n"));
 224         i = -1;
 225         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 226                 i++;
 227                 if (STAILQ_EMPTY(&pf->cfe_head)) {
 228                         device_printf(dev,
 229                             "Function %d has no config entries.!\n", i);
 230                         continue;
 231                 }
 232                 pf->sc = sc;
 233                 pf->cfe = NULL;
 234                 pf->dev = NULL;
 235         }
 236         DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
 237             pccard_mfc(sc)));
 238
 239         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 240                 if (STAILQ_EMPTY(&pf->cfe_head))
 241                         continue;
 242                 ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF,
 243                     M_WAITOK | M_ZERO);
 244                 resource_list_init(&ivar->resources);
 245                 child = device_add_child(dev, NULL, -1);
 246                 device_set_ivars(child, ivar);
 247                 ivar->pf = pf;
 248                 pf->dev = child;
 249                 pccard_probe_and_attach_child(dev, child, pf);
 250         }
 251         return (0);
 252 }
 253
 254 static int
 255 pccard_probe_and_attach_child(device_t dev, device_t child,
 256     struct pccard_function *pf)
 257 {
 258         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 259         int error;
 260
 261         /*
 262          * In NetBSD, the drivers are responsible for activating each
 263          * function of a card and selecting the config to use.  In
 264          * FreeBSD, all that's done automatically in the typical lazy
 265          * way we do device resoruce allocation (except we pick the
 266          * cfe up front).  This is the biggest depature from the
 267          * inherited NetBSD model, apart from the FreeBSD resource code.
 268          *
 269          * This seems to work well in practice for most cards.
 270          * However, there are two cases that are problematic.  If a
 271          * driver wishes to pick and chose which config entry to use,
 272          * then this method falls down.  These are usually older
 273          * cards.  In addition, there are some cards that have
 274          * multiple hardware units on the cards, but presents only one
 275          * CIS chain.  These cards are combination cards, but only one
 276          * of these units can be on at a time.
 277          *
 278          * To overcome this limitation, while preserving the basic
 279          * model, the probe routine can select a cfe and try to
 280          * activate it.  If that succeeds, then we'll keep track of
 281          * and let that information persist until we attach the card.
 282          * Probe routines that do this MUST return 0, and cannot
 283          * participate in the bidding process for a device.  This
 284          * seems harsh until you realize that if a probe routine knows
 285          * enough to override the cfe we pick, then chances are very
 286          * very good that it is the only driver that could hope to
 287          * cope with the card.  Bidding is for generic drivers, and
 288          * while some of them may also match, none of them will do
 289          * configuration override.
 290          */
 291         error = device_probe(child);
 292         if (error != 0)
 293                 goto out;
 294         pccard_function_init(pf, -1);
 295         if (sc->sc_enabled_count == 0)
 296                 POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 297         if (pccard_function_enable(pf) == 0 &&
 298             pccard_set_default_descr(child) == 0 &&
 299             device_attach(child) == 0) {
 300                 DEVPRINTF((sc->dev, "function %d CCR at %d offset %#x "
 301                     "mask %#x: %#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n",
 302                     pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
 303                     pf->ccr_mask, pccard_ccr_read(pf, 0x00),
 304                     pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
 305                     pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
 306                     pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
 307                     pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
 308                 return (0);
 309         }
 310         error = ENXIO;
 311 out:;
 312         /*
 313          * Probe may fail AND also try to select a cfe, if so, free
 314          * it.  This is how we do cfe override.  Or the attach fails.
 315          * Either way, we have to clean up.
 316          */
 317         if (pf->cfe != NULL)
 318                 pccard_function_disable(pf);
 319         pf->cfe = NULL;
 320         pccard_function_free(pf);
 321         return error;
 322 }
 323
 324 static int
 325 pccard_detach_card(device_t dev)
 326 {
 327         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 328         struct pccard_function *pf;
 329         struct pccard_config_entry *cfe;
 330         struct pccard_ivar *devi;
 331         int state;
 332
 333         /*
 334          * We are running on either the PCCARD socket's event thread
 335          * or in user context detaching a device by user request.
 336          */
 337         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 338                 if (pf->dev == NULL)
 339                         continue;
 340                 state = device_get_state(pf->dev);
 341                 if (state == DS_ATTACHED || state == DS_BUSY)
 342                         device_detach(pf->dev);
 343                 if (pf->cfe != NULL)
 344                         pccard_function_disable(pf);
 345                 pccard_function_free(pf);
 346                 devi = PCCARD_IVAR(pf->dev);
 347                 device_delete_child(dev, pf->dev);
 348                 free(devi, M_DEVBUF);
 349         }
 350         if (sc->sc_enabled_count == 0)
 351                 POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
 352
 353         while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
 354                 while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
 355                         STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
 356                         free(cfe, M_DEVBUF);
 357                 }
 358                 STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
 359                 free(pf, M_DEVBUF);
 360         }
 361         STAILQ_INIT(&sc->card.pf_head);
 362         return (0);
 363 }
 364
 365 static const struct pccard_product *
 366 pccard_do_product_lookup(device_t bus, device_t dev,
 367     const struct pccard_product *tab, size_t ent_size,
 368     pccard_product_match_fn matchfn)
 369 {
 370         const struct pccard_product *ent;
 371         int matches;
 372         uint32_t vendor;
 373         uint32_t prod;
 374         const char *vendorstr;
 375         const char *prodstr;
 376         const char *cis3str;
 377         const char *cis4str;
 378
 379 #ifdef DIAGNOSTIC
 380         if (sizeof *ent > ent_size)
 381                 panic("pccard_product_lookup: bogus ent_size %jd",
 382                     (intmax_t) ent_size);
 383 #endif
 384         if (pccard_get_vendor(dev, &vendor))
 385                 return (NULL);
 386         if (pccard_get_product(dev, &prod))
 387                 return (NULL);
 388         if (pccard_get_vendor_str(dev, &vendorstr))
 389                 return (NULL);
 390         if (pccard_get_product_str(dev, &prodstr))
 391                 return (NULL);
 392         if (pccard_get_cis3_str(dev, &cis3str))
 393                 return (NULL);
 394         if (pccard_get_cis4_str(dev, &cis4str))
 395                 return (NULL);
 396         for (ent = tab; ent->pp_vendor != 0; ent =
 397             (const struct pccard_product *) ((const char *) ent + ent_size)) {
 398                 matches = 1;
 399                 if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
 400                     ent->pp_product == PCCARD_PRODUCT_ANY &&
 401                     ent->pp_cis[0] == NULL &&
 402                     ent->pp_cis[1] == NULL) {
 403                         if (ent->pp_name)
 404                                 device_printf(dev,
 405                                     "Total wildcard entry ignored for %s\n",
 406                                     ent->pp_name);
 407                         continue;
 408                 }
 409                 if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
 410                     vendor != ent->pp_vendor)
 411                         matches = 0;
 412                 if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
 413                     prod != ent->pp_product)
 414                         matches = 0;
 415                 if (matches && ent->pp_cis[0] &&
 416                     (vendorstr == NULL ||
 417                     strcmp(ent->pp_cis[0], vendorstr) != 0))
 418                         matches = 0;
 419                 if (matches && ent->pp_cis[1] &&
 420                     (prodstr == NULL ||
 421                     strcmp(ent->pp_cis[1], prodstr) != 0))
 422                         matches = 0;
 423                 if (matches && ent->pp_cis[2] &&
 424                     (cis3str == NULL ||
 425                     strcmp(ent->pp_cis[2], cis3str) != 0))
 426                         matches = 0;
 427                 if (matches && ent->pp_cis[3] &&
 428                     (cis4str == NULL ||
 429                     strcmp(ent->pp_cis[3], cis4str) != 0))
 430                         matches = 0;
 431                 if (matchfn != NULL)
 432                         matches = (*matchfn)(dev, ent, matches);
 433                 if (matches)
 434                         return (ent);
 435         }
 436         return (NULL);
 437 }
 438
 439 /**
 440  * @brief pccard_select_cfe
 441  *
 442  * Select a cfe entry to use.  Should be called from the pccard's probe
 443  * routine after it knows for sure that it wants this card.
 444  *
 445  * XXX I think we need to make this symbol be static, ala the kobj stuff
 446  * we do for everything else.  This is a quick hack.
 447  */
 448 int
 449 pccard_select_cfe(device_t dev, int entry)
 450 {
 451         struct pccard_ivar *devi = PCCARD_IVAR(dev);
 452         struct pccard_function *pf = devi->pf;
 453
 454         pccard_function_init(pf, entry);
 455         return (pf->cfe ? 0 : ENOMEM);
 456 }
 457
 458 /*
 459  * Initialize a PCCARD function.  May be called as long as the function is
 460  * disabled.
 461  *
 462  * Note: pccard_function_init should not keep resources allocated.  It should
 463  * only set them up ala isa pnp, set the values in the rl lists, and return.
 464  * Any resource held after pccard_function_init is called is a bug.  However,
 465  * the bus routines to get the resources also assume that pccard_function_init
 466  * does this, so they need to be fixed too.
 467  */
 468 static void
 469 pccard_function_init(struct pccard_function *pf, int entry)
 470 {
 471         struct pccard_config_entry *cfe;
 472         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 473         struct resource_list *rl = &devi->resources;
 474         struct resource_list_entry *rle;
 475         struct resource *r = NULL;
 476         struct pccard_ce_iospace *ios;
 477         struct pccard_ce_memspace *mems;
 478         device_t bus;
 479         rman_res_t start, end, len;
 480         int i, rid, spaces;
 481
 482         if (pf->pf_flags & PFF_ENABLED) {
 483                 printf("pccard_function_init: function is enabled");
 484                 return;
 485         }
 486
 487         /*
 488          * Driver probe routine requested a specific entry already
 489          * that succeeded.
 490          */
 491         if (pf->cfe != NULL)
 492                 return;
 493
 494         /*
 495          * walk the list of configuration entries until we find one that
 496          * we can allocate all the resources to.
 497          */
 498         bus = device_get_parent(pf->dev);
 499         STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
 500                 if (cfe->iftype != PCCARD_IFTYPE_IO)
 501                         continue;
 502                 if (entry != -1 && cfe->number != entry)
 503                         continue;
 504                 spaces = 0;
 505                 for (i = 0; i < cfe->num_iospace; i++) {
 506                         ios = cfe->iospace + i;
 507                         start = ios->start;
 508                         if (start)
 509                                 end = start + ios->length - 1;
 510                         else
 511                                 end = ~0;
 512                         DEVPRINTF((bus, "I/O rid %d start %#jx end %#jx\n",
 513                             i, start, end));
 514                         rid = i;
 515                         len = ios->length;
 516                         r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid,
 517                             start, end, len, rman_make_alignment_flags(len));
 518                         if (r == NULL) {
 519                                 DEVPRINTF((bus, "I/O rid %d failed\n", i));
 520                                 goto not_this_one;
 521                         }
 522                         rle = resource_list_add(rl, SYS_RES_IOPORT,
 523                             rid, rman_get_start(r), rman_get_end(r), len);
 524                         if (rle == NULL)
 525                                 panic("Cannot add resource rid %d IOPORT", rid);
 526                         rle->res = r;
 527                         spaces++;
 528                 }
 529                 for (i = 0; i < cfe->num_memspace; i++) {
 530                         mems = cfe->memspace + i;
 531                         start = mems->cardaddr + mems->hostaddr;
 532                         if (start)
 533                                 end = start + mems->length - 1;
 534                         else
 535                                 end = ~0;
 536                         DEVPRINTF((bus, "Memory rid %d start %#jx end %#jx\ncardaddr %#jx hostaddr %#jx length %#jx\n",
 537                             i, start, end, mems->cardaddr, mems->hostaddr,
 538                             mems->length));
 539                         rid = i;
 540                         len = mems->length;
 541                         r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid,
 542                             start, end, len, rman_make_alignment_flags(len));
 543                         if (r == NULL) {
 544                                 DEVPRINTF((bus, "Memory rid %d failed\n", i));
 545 //                              goto not_this_one;
 546                                 continue;
 547                         }
 548                         rle = resource_list_add(rl, SYS_RES_MEMORY,
 549                             rid, rman_get_start(r), rman_get_end(r), len);
 550                         if (rle == NULL)
 551                                 panic("Cannot add resource rid %d MEM", rid);
 552                         rle->res = r;
 553                         spaces++;
 554                 }
 555                 if (spaces == 0) {
 556                         DEVPRINTF((bus, "Neither memory nor I/O mapped\n"));
 557                         goto not_this_one;
 558                 }
 559                 if (cfe->irqmask) {
 560                         rid = 0;
 561                         r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid,
 562                             RF_SHAREABLE);
 563                         if (r == NULL) {
 564                                 DEVPRINTF((bus, "IRQ rid %d failed\n", rid));
 565                                 goto not_this_one;
 566                         }
 567                         rle = resource_list_add(rl, SYS_RES_IRQ, rid,
 568                             rman_get_start(r), rman_get_end(r), 1);
 569                         if (rle == NULL)
 570                                 panic("Cannot add resource rid %d IRQ", rid);
 571                         rle->res = r;
 572                 }
 573                 /* If we get to here, we've allocated all we need */
 574                 pf->cfe = cfe;
 575                 break;
 576             not_this_one:;
 577                 DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
 578                     cfe->number));
 579                 resource_list_purge(rl);
 580         }
 581 }
 582
 583 /*
 584  * Free resources allocated by pccard_function_init(), May be called as long
 585  * as the function is disabled.
 586  *
 587  * NOTE: This function should be unnecessary.  pccard_function_init should
 588  * never keep resources initialized.
 589  */
 590 static void
 591 pccard_function_free(struct pccard_function *pf)
 592 {
 593         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 594         struct resource_list_entry *rle;
 595
 596         if (pf->pf_flags & PFF_ENABLED) {
 597                 printf("pccard_function_free: function is enabled");
 598                 return;
 599         }
 600
 601         STAILQ_FOREACH(rle, &devi->resources, link) {
 602                 if (rle->res) {
 603                         if (rman_get_device(rle->res) != pf->sc->dev)
 604                                 device_printf(pf->sc->dev,
 605                                     "function_free: Resource still owned by "
 606                                     "child, oops. "
 607                                     "(type=%d, rid=%d, addr=%#jx)\n",
 608                                     rle->type, rle->rid,
 609                                     rman_get_start(rle->res));
 610                         BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
 611                             pf->sc->dev, rle->type, rle->rid, rle->res);
 612                         rle->res = NULL;
 613                 }
 614         }
 615         resource_list_free(&devi->resources);
 616 }
 617
 618 static void
 619 pccard_mfc_adjust_iobase(struct pccard_function *pf, rman_res_t addr,
 620     rman_res_t offset, rman_res_t size)
 621 {
 622         bus_size_t iosize, tmp;
 623
 624         if (addr != 0) {
 625                 if (pf->pf_mfc_iomax == 0) {
 626                         pf->pf_mfc_iobase = addr + offset;
 627                         pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
 628                 } else {
 629                         /* this makes the assumption that nothing overlaps */
 630                         if (pf->pf_mfc_iobase > addr + offset)
 631                                 pf->pf_mfc_iobase = addr + offset;
 632                         if (pf->pf_mfc_iomax < addr + offset + size)
 633                                 pf->pf_mfc_iomax = addr + offset + size;
 634                 }
 635         }
 636
 637         tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
 638         /* round up to nearest (2^n)-1 */
 639         for (iosize = 1; iosize < tmp; iosize <<= 1)
 640                 ;
 641         iosize--;
 642
 643         DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n",
 644             (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1)));
 645         pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
 646             pf->pf_mfc_iobase & 0xff);
 647         pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
 648             (pf->pf_mfc_iobase >> 8) & 0xff);
 649         pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
 650         pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
 651         pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
 652 }
 653
 654 /* Enable a PCCARD function */
 655 static int
 656 pccard_function_enable(struct pccard_function *pf)
 657 {
 658         struct pccard_function *tmp;
 659         int reg;
 660         device_t dev = pf->sc->dev;
 661
 662         if (pf->cfe == NULL) {
 663                 DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
 664                 return (ENOMEM);
 665         }
 666
 667         if (pf->pf_flags & PFF_ENABLED)
 668                 return (0);
 669         pf->sc->sc_enabled_count++;
 670
 671         /*
 672          * it's possible for different functions' CCRs to be in the same
 673          * underlying page.  Check for that.
 674          */
 675         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 676                 if ((tmp->pf_flags & PFF_ENABLED) &&
 677                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 678                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 679                     (tmp->ccr_base - tmp->pf_ccr_offset +
 680                     tmp->pf_ccr_realsize))) {
 681                         pf->pf_ccrt = tmp->pf_ccrt;
 682                         pf->pf_ccrh = tmp->pf_ccrh;
 683                         pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
 684
 685                         /*
 686                          * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
 687                          * tmp->ccr_base) + pf->ccr_base;
 688                          */
 689                         /* pf->pf_ccr_offset =
 690                             (tmp->pf_ccr_offset + pf->ccr_base) -
 691                             tmp->ccr_base; */
 692                         pf->pf_ccr_window = tmp->pf_ccr_window;
 693                         break;
 694                 }
 695         }
 696         if (tmp == NULL) {
 697                 pf->ccr_rid = 0;
 698                 pf->ccr_res = bus_alloc_resource_anywhere(dev, SYS_RES_MEMORY,
 699                     &pf->ccr_rid, PCCARD_MEM_PAGE_SIZE, RF_ACTIVE);
 700                 if (!pf->ccr_res)
 701                         goto bad;
 702                 DEVPRINTF((dev, "ccr_res == %#jx-%#jx, base=%#x\n",
 703                     rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
 704                     pf->ccr_base));
 705                 CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
 706                     pf->ccr_rid, PCCARD_A_MEM_ATTR);
 707                 CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
 708                     pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
 709                 pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
 710                 pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
 711                 pf->pf_ccr_realsize = 1;
 712         }
 713
 714         reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
 715         reg |= PCCARD_CCR_OPTION_LEVIREQ;
 716         if (pccard_mfc(pf->sc)) {
 717                 reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
 718                         PCCARD_CCR_OPTION_ADDR_DECODE);
 719                 /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
 720         }
 721         pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
 722
 723         reg = 0;
 724         if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
 725                 reg |= PCCARD_CCR_STATUS_IOIS8;
 726         if (pf->cfe->flags & PCCARD_CFE_AUDIO)
 727                 reg |= PCCARD_CCR_STATUS_AUDIO;
 728         pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
 729
 730         pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
 731
 732         if (pccard_mfc(pf->sc))
 733                 pccard_mfc_adjust_iobase(pf, 0, 0, 0);
 734
 735 #ifdef PCCARDDEBUG
 736         if (pccard_debug) {
 737                 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 738                         device_printf(tmp->sc->dev,
 739                             "function %d CCR at %d offset %#x: "
 740                             "%#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n",
 741                             tmp->number, tmp->pf_ccr_window,
 742                             tmp->pf_ccr_offset,
 743                             pccard_ccr_read(tmp, 0x00),
 744                             pccard_ccr_read(tmp, 0x02),
 745                             pccard_ccr_read(tmp, 0x04),
 746                             pccard_ccr_read(tmp, 0x06),
 747                             pccard_ccr_read(tmp, 0x0A),
 748                             pccard_ccr_read(tmp, 0x0C),
 749                             pccard_ccr_read(tmp, 0x0E),
 750                             pccard_ccr_read(tmp, 0x10),
 751                             pccard_ccr_read(tmp, 0x12));
 752                 }
 753         }
 754 #endif
 755         pf->pf_flags |= PFF_ENABLED;
 756         return (0);
 757
 758  bad:
 759         /*
 760          * Decrement the reference count, and power down the socket, if
 761          * necessary.
 762          */
 763         pf->sc->sc_enabled_count--;
 764         DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
 765
 766         return (1);
 767 }
 768
 769 /* Disable PCCARD function. */
 770 static void
 771 pccard_function_disable(struct pccard_function *pf)
 772 {
 773         struct pccard_function *tmp;
 774         device_t dev = pf->sc->dev;
 775
 776         if (pf->cfe == NULL)
 777                 panic("pccard_function_disable: function not initialized");
 778
 779         if ((pf->pf_flags & PFF_ENABLED) == 0)
 780                 return;
 781         if (pf->intr_handler != NULL) {
 782                 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 783                 struct resource_list_entry *rle =
 784                     resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
 785                 if (rle == NULL)
 786                         panic("Can't disable an interrupt with no IRQ res\n");
 787                 BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
 788                     pf->intr_handler_cookie);
 789         }
 790
 791         /*
 792          * it's possible for different functions' CCRs to be in the same
 793          * underlying page.  Check for that.  Note we mark us as disabled
 794          * first to avoid matching ourself.
 795          */
 796
 797         pf->pf_flags &= ~PFF_ENABLED;
 798         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 799                 if ((tmp->pf_flags & PFF_ENABLED) &&
 800                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 801                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 802                     (tmp->ccr_base - tmp->pf_ccr_offset +
 803                     tmp->pf_ccr_realsize)))
 804                         break;
 805         }
 806
 807         /* Not used by anyone else; unmap the CCR. */
 808         if (tmp == NULL) {
 809                 bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
 810                     pf->ccr_res);
 811                 pf->ccr_res = NULL;
 812         }
 813
 814         /*
 815          * Decrement the reference count, and power down the socket, if
 816          * necessary.
 817          */
 818         pf->sc->sc_enabled_count--;
 819 }
 820
 821 #define PCCARD_NPORT    2
 822 #define PCCARD_NMEM     5
 823 #define PCCARD_NIRQ     1
 824 #define PCCARD_NDRQ     0
 825
 826 static int
 827 pccard_probe(device_t dev)
 828 {
 829         device_set_desc(dev, "16-bit PCCard bus");
 830         return (0);
 831 }
 832
 833 static int
 834 pccard_attach(device_t dev)
 835 {
 836         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 837         int err;
 838
 839         sc->dev = dev;
 840         sc->sc_enabled_count = 0;
 841         if ((err = pccard_device_create(sc)) != 0)
 842                 return  (err);
 843         STAILQ_INIT(&sc->card.pf_head);
 844         return (bus_generic_attach(dev));
 845 }
 846
 847 static int
 848 pccard_detach(device_t dev)
 849 {
 850         pccard_detach_card(dev);
 851         pccard_device_destroy(device_get_softc(dev));
 852         return (0);
 853 }
 854
 855 static int
 856 pccard_suspend(device_t self)
 857 {
 858         pccard_detach_card(self);
 859         return (0);
 860 }
 861
 862 static
 863 int
 864 pccard_resume(device_t self)
 865 {
 866         return (0);
 867 }
 868
 869 static void
 870 pccard_print_resources(struct resource_list *rl, const char *name, int type,
 871     int count, const char *format)
 872 {
 873         struct resource_list_entry *rle;
 874         int printed;
 875         int i;
 876
 877         printed = 0;
 878         for (i = 0; i < count; i++) {
 879                 rle = resource_list_find(rl, type, i);
 880                 if (rle != NULL) {
 881                         if (printed == 0)
 882                                 printf(" %s ", name);
 883                         else if (printed > 0)
 884                                 printf(",");
 885                         printed++;
 886                         printf(format, rle->start);
 887                         if (rle->count > 1) {
 888                                 printf("-");
 889                                 printf(format, rle->start + rle->count - 1);
 890                         }
 891                 } else if (i > 3) {
 892                         /* check the first few regardless */
 893                         break;
 894                 }
 895         }
 896 }
 897
 898 static int
 899 pccard_print_child(device_t dev, device_t child)
 900 {
 901         struct pccard_ivar *devi = PCCARD_IVAR(child);
 902         struct resource_list *rl = &devi->resources;
 903         int retval = 0;
 904
 905         retval += bus_print_child_header(dev, child);
 906         retval += printf(" at");
 907
 908         if (devi != NULL) {
 909                 pccard_print_resources(rl, "port", SYS_RES_IOPORT,
 910                     PCCARD_NPORT, "%#lx");
 911                 pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
 912                     PCCARD_NMEM, "%#lx");
 913                 pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
 914                     "%ld");
 915                 pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
 916                     "%ld");
 917                 retval += printf(" function %d config %d", devi->pf->number,
 918                     devi->pf->cfe->number);
 919         }
 920
 921         retval += bus_print_child_footer(dev, child);
 922
 923         return (retval);
 924 }
 925
 926 static int
 927 pccard_set_resource(device_t dev, device_t child, int type, int rid,
 928     rman_res_t start, rman_res_t count)
 929 {
 930         struct pccard_ivar *devi = PCCARD_IVAR(child);
 931         struct resource_list *rl = &devi->resources;
 932
 933         if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
 934             && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
 935                 return (EINVAL);
 936         if (rid < 0)
 937                 return (EINVAL);
 938         if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
 939                 return (EINVAL);
 940         if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
 941                 return (EINVAL);
 942         if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
 943                 return (EINVAL);
 944         if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
 945                 return (EINVAL);
 946
 947         resource_list_add(rl, type, rid, start, start + count - 1, count);
 948         if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
 949             type, &rid, start, start + count - 1, count, 0))
 950                 return 0;
 951         else
 952                 return ENOMEM;
 953 }
 954
 955 static int
 956 pccard_get_resource(device_t dev, device_t child, int type, int rid,
 957     rman_res_t *startp, rman_res_t *countp)
 958 {
 959         struct pccard_ivar *devi = PCCARD_IVAR(child);
 960         struct resource_list *rl = &devi->resources;
 961         struct resource_list_entry *rle;
 962
 963         rle = resource_list_find(rl, type, rid);
 964         if (rle == NULL)
 965                 return (ENOENT);
 966
 967         if (startp != NULL)
 968                 *startp = rle->start;
 969         if (countp != NULL)
 970                 *countp = rle->count;
 971
 972         return (0);
 973 }
 974
 975 static void
 976 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
 977 {
 978         struct pccard_ivar *devi = PCCARD_IVAR(child);
 979         struct resource_list *rl = &devi->resources;
 980         resource_list_delete(rl, type, rid);
 981 }
 982
 983 static int
 984 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
 985     u_long flags)
 986 {
 987         return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
 988             rid, flags));
 989 }
 990
 991 static int
 992 pccard_set_memory_offset(device_t dev, device_t child, int rid,
 993     uint32_t offset, uint32_t *deltap)
 994
 995 {
 996         return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
 997             offset, deltap));
 998 }
 999
1000 static void
1001 pccard_probe_nomatch(device_t bus, device_t child)
1002 {
1003         struct pccard_ivar *devi = PCCARD_IVAR(child);
1004         struct pccard_function *pf = devi->pf;
1005         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1006         int i;
1007
1008         device_printf(bus, "<unknown card>");
1009         printf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) "
1010             "at function %d\n", sc->card.manufacturer, sc->card.product,
1011             pf->function, pf->number);
1012         device_printf(bus, "   CIS info: ");
1013         for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++)
1014                 printf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]);
1015         printf("\n");
1016         return;
1017 }
1018
1019 static int
1020 pccard_child_location_str(device_t bus, device_t child, char *buf,
1021     size_t buflen)
1022 {
1023         struct pccard_ivar *devi = PCCARD_IVAR(child);
1024         struct pccard_function *pf = devi->pf;
1025
1026         snprintf(buf, buflen, "function=%d", pf->number);
1027         return (0);
1028 }
1029
1030 static int
1031 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
1032     size_t buflen)
1033 {
1034         struct pccard_ivar *devi = PCCARD_IVAR(child);
1035         struct pccard_function *pf = devi->pf;
1036         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1037         char cis0[128], cis1[128];
1038
1039         devctl_safe_quote(cis0, sc->card.cis1_info[0], sizeof(cis0));
1040         devctl_safe_quote(cis1, sc->card.cis1_info[1], sizeof(cis1));
1041         snprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x "
1042             "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d",
1043             sc->card.manufacturer, sc->card.product, cis0, cis1, pf->function);
1044         return (0);
1045 }
1046
1047 static int
1048 pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result)
1049 {
1050         struct pccard_ivar *devi = PCCARD_IVAR(child);
1051         struct pccard_function *pf = devi->pf;
1052         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1053
1054         if (!pf)
1055                 panic("No pccard function pointer");
1056         switch (which) {
1057         default:
1058                 return (EINVAL);
1059         case PCCARD_IVAR_FUNCE_DISK:
1060                 *(uint16_t *)result = pf->pf_funce_disk_interface |
1061                     (pf->pf_funce_disk_power << 8);
1062                 break;
1063         case PCCARD_IVAR_ETHADDR:
1064                 bcopy(pf->pf_funce_lan_nid, result, ETHER_ADDR_LEN);
1065                 break;
1066         case PCCARD_IVAR_VENDOR:
1067                 *(uint32_t *)result = sc->card.manufacturer;
1068                 break;
1069         case PCCARD_IVAR_PRODUCT:
1070                 *(uint32_t *)result = sc->card.product;
1071                 break;
1072         case PCCARD_IVAR_PRODEXT:
1073                 *(uint16_t *)result = sc->card.prodext;
1074                 break;
1075         case PCCARD_IVAR_FUNCTION:
1076                 *(uint32_t *)result = pf->function;
1077                 break;
1078         case PCCARD_IVAR_FUNCTION_NUMBER:
1079                 *(uint32_t *)result = pf->number;
1080                 break;
1081         case PCCARD_IVAR_VENDOR_STR:
1082                 *(const char **)result = sc->card.cis1_info[0];
1083                 break;
1084         case PCCARD_IVAR_PRODUCT_STR:
1085                 *(const char **)result = sc->card.cis1_info[1];
1086                 break;
1087         case PCCARD_IVAR_CIS3_STR:
1088                 *(const char **)result = sc->card.cis1_info[2];
1089                 break;
1090         case PCCARD_IVAR_CIS4_STR:
1091                 *(const char **)result = sc->card.cis1_info[3];
1092                 break;
1093         }
1094         return (0);
1095 }
1096
1097 static void
1098 pccard_driver_added(device_t dev, driver_t *driver)
1099 {
1100         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1101         struct pccard_function *pf;
1102         device_t child;
1103
1104         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1105                 if (STAILQ_EMPTY(&pf->cfe_head))
1106                         continue;
1107                 child = pf->dev;
1108                 if (device_get_state(child) != DS_NOTPRESENT)
1109                         continue;
1110                 pccard_probe_and_attach_child(dev, child, pf);
1111         }
1112         return;
1113 }
1114
1115 static struct resource *
1116 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1117     rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
1118 {
1119         struct pccard_ivar *dinfo;
1120         struct resource_list_entry *rle = NULL;
1121         int passthrough = (device_get_parent(child) != dev);
1122         int isdefault = (RMAN_IS_DEFAULT_RANGE(start, end) && count == 1);
1123         struct resource *r = NULL;
1124
1125         /* XXX I'm no longer sure this is right */
1126         if (passthrough) {
1127                 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1128                     type, rid, start, end, count, flags));
1129         }
1130
1131         dinfo = device_get_ivars(child);
1132         rle = resource_list_find(&dinfo->resources, type, *rid);
1133
1134         if (rle == NULL && isdefault)
1135                 return (NULL);  /* no resource of that type/rid */
1136         if (rle == NULL || rle->res == NULL) {
1137                 /* XXX Need to adjust flags */
1138                 r = bus_alloc_resource(dev, type, rid, start, end,
1139                   count, flags);
1140                 if (r == NULL)
1141                     goto bad;
1142                 resource_list_add(&dinfo->resources, type, *rid,
1143                   rman_get_start(r), rman_get_end(r), count);
1144                 rle = resource_list_find(&dinfo->resources, type, *rid);
1145                 if (!rle)
1146                     goto bad;
1147                 rle->res = r;
1148         }
1149         /*
1150          * If dev doesn't own the device, then we can't give this device
1151          * out.
1152          */
1153         if (rman_get_device(rle->res) != dev)
1154                 return (NULL);
1155         rman_set_device(rle->res, child);
1156         if (flags & RF_ACTIVE)
1157                 BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res);
1158         return (rle->res);
1159 bad:;
1160         device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1161         return (NULL);
1162 }
1163
1164 static int
1165 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1166     struct resource *r)
1167 {
1168         struct pccard_ivar *dinfo;
1169         int passthrough = (device_get_parent(child) != dev);
1170         struct resource_list_entry *rle = NULL;
1171
1172         if (passthrough)
1173                 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1174                     type, rid, r);
1175
1176         dinfo = device_get_ivars(child);
1177
1178         rle = resource_list_find(&dinfo->resources, type, rid);
1179
1180         if (!rle) {
1181                 device_printf(dev, "Allocated resource not found, "
1182                     "%d %#x %#jx %#jx\n",
1183                     type, rid, rman_get_start(r), rman_get_size(r));
1184                 return ENOENT;
1185         }
1186         if (!rle->res) {
1187                 device_printf(dev, "Allocated resource not recorded\n");
1188                 return ENOENT;
1189         }
1190         /*
1191          * Deactivate the resource (since it is being released), and
1192          * assign it to the bus.
1193          */
1194         BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res);
1195         rman_set_device(rle->res, dev);
1196         return (0);
1197 }
1198
1199 static void
1200 pccard_child_detached(device_t parent, device_t dev)
1201 {
1202         struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1203         struct pccard_function *pf = ivar->pf;
1204
1205         pccard_function_disable(pf);
1206 }
1207
1208 static int
1209 pccard_filter(void *arg)
1210 {
1211         struct pccard_function *pf = (struct pccard_function*) arg;
1212         int reg;
1213         int doisr = 1;
1214
1215         /*
1216          * MFC cards know if they interrupted, so we have to ack the
1217          * interrupt and call the ISR.  Non-MFC cards don't have these
1218          * bits, so they always get called.  Many non-MFC cards have
1219          * this bit set always upon read, but some do not.
1220          *
1221          * We always ack the interrupt, even if there's no ISR
1222          * for the card.  This is done on the theory that acking
1223          * the interrupt will pacify the card enough to keep an
1224          * interrupt storm from happening.  Of course this won't
1225          * help in the non-MFC case.
1226          *
1227          * This has no impact for MPSAFEness of the client drivers.
1228          * We register this with whatever flags the intr_handler
1229          * was registered with.  All these functions are MPSAFE.
1230          */
1231         if (pccard_mfc(pf->sc)) {
1232                 reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1233                 if (reg & PCCARD_CCR_STATUS_INTR)
1234                         pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1235                             reg & ~PCCARD_CCR_STATUS_INTR);
1236                 else
1237                         doisr = 0;
1238         }
1239         if (doisr) {
1240                 if (pf->intr_filter != NULL)
1241                         return (pf->intr_filter(pf->intr_handler_arg));
1242                 return (FILTER_SCHEDULE_THREAD);
1243         }
1244         return (FILTER_STRAY);
1245 }
1246
1247 static void
1248 pccard_intr(void *arg)
1249 {
1250         struct pccard_function *pf = (struct pccard_function*) arg;
1251
1252         pf->intr_handler(pf->intr_handler_arg);
1253 }
1254
1255 static int
1256 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1257     int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg,
1258     void **cookiep)
1259 {
1260         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1261         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1262         struct pccard_function *pf = ivar->pf;
1263         int err;
1264
1265         if (pf->intr_filter != NULL || pf->intr_handler != NULL)
1266                 panic("Only one interrupt handler per function allowed");
1267         err = bus_generic_setup_intr(dev, child, irq, flags, pccard_filter,
1268             intr ? pccard_intr : NULL, pf, cookiep);
1269         if (err != 0)
1270                 return (err);
1271         pf->intr_filter = filt;
1272         pf->intr_handler = intr;
1273         pf->intr_handler_arg = arg;
1274         pf->intr_handler_cookie = *cookiep;
1275         if (pccard_mfc(sc)) {
1276                 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1277                     pccard_ccr_read(pf, PCCARD_CCR_OPTION) |
1278                     PCCARD_CCR_OPTION_IREQ_ENABLE);
1279         }
1280         return (0);
1281 }
1282
1283 static int
1284 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1285     void *cookie)
1286 {
1287         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1288         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1289         struct pccard_function *pf = ivar->pf;
1290         int ret;
1291
1292         if (pccard_mfc(sc)) {
1293                 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1294                     pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
1295                     ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1296         }
1297         ret = bus_generic_teardown_intr(dev, child, r, cookie);
1298         if (ret == 0) {
1299                 pf->intr_handler = NULL;
1300                 pf->intr_handler_arg = NULL;
1301                 pf->intr_handler_cookie = NULL;
1302         }
1303
1304         return (ret);
1305 }
1306
1307 static int
1308 pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
1309     struct resource *r)
1310 {
1311         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1312         struct pccard_function *pf = ivar->pf;
1313
1314         switch(type) {
1315         case SYS_RES_IOPORT:
1316                 /*
1317                  * We need to adjust IOBASE[01] and IOSIZE if we're an MFC
1318                  * card.
1319                  */
1320                 if (pccard_mfc(pf->sc))
1321                         pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1322                             rman_get_size(r));
1323                 break;
1324         default:
1325                 break;
1326         }
1327         return (bus_generic_activate_resource(brdev, child, type, rid, r));
1328 }
1329
1330 static int
1331 pccard_deactivate_resource(device_t brdev, device_t child, int type,
1332     int rid, struct resource *r)
1333 {
1334         /* XXX undo pccard_activate_resource? XXX */
1335         return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
1336 }
1337
1338 static int
1339 pccard_attr_read_impl(device_t brdev, device_t child, uint32_t offset,
1340     uint8_t *val)
1341 {
1342         struct pccard_ivar *devi = PCCARD_IVAR(child);
1343         struct pccard_function *pf = devi->pf;
1344
1345         /*
1346          * Optimization.  Most of the time, devices want to access
1347          * the same page of the attribute memory that the CCR is in.
1348          * We take advantage of this fact here.
1349          */
1350         if (offset / PCCARD_MEM_PAGE_SIZE ==
1351             pf->ccr_base / PCCARD_MEM_PAGE_SIZE)
1352                 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
1353                     offset % PCCARD_MEM_PAGE_SIZE);
1354         else {
1355                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset,
1356                     &offset);
1357                 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, offset);
1358                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base,
1359                     &offset);
1360         }
1361         return 0;
1362 }
1363
1364 static int
1365 pccard_attr_write_impl(device_t brdev, device_t child, uint32_t offset,
1366     uint8_t val)
1367 {
1368         struct pccard_ivar *devi = PCCARD_IVAR(child);
1369         struct pccard_function *pf = devi->pf;
1370
1371         /*
1372          * Optimization.  Most of the time, devices want to access
1373          * the same page of the attribute memory that the CCR is in.
1374          * We take advantage of this fact here.
1375          */
1376         if (offset / PCCARD_MEM_PAGE_SIZE ==
1377             pf->ccr_base / PCCARD_MEM_PAGE_SIZE)
1378                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
1379                     offset % PCCARD_MEM_PAGE_SIZE, val);
1380         else {
1381                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset,
1382                     &offset);
1383                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, offset, val);
1384                 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base,
1385                     &offset);
1386         }
1387
1388         return 0;
1389 }
1390
1391 static int
1392 pccard_ccr_read_impl(device_t brdev, device_t child, uint32_t offset,
1393     uint8_t *val)
1394 {
1395         struct pccard_ivar *devi = PCCARD_IVAR(child);
1396
1397         *val = pccard_ccr_read(devi->pf, offset);
1398         DEVPRINTF((child, "ccr_read of %#x (%#x) is %#x\n", offset,
1399           devi->pf->pf_ccr_offset, *val));
1400         return 0;
1401 }
1402
1403 static int
1404 pccard_ccr_write_impl(device_t brdev, device_t child, uint32_t offset,
1405     uint8_t val)
1406 {
1407         struct pccard_ivar *devi = PCCARD_IVAR(child);
1408         struct pccard_function *pf = devi->pf;
1409
1410         /*
1411          * Can't use pccard_ccr_write since client drivers may access
1412          * registers not contained in the 'mask' if they are non-standard.
1413          */
1414         DEVPRINTF((child, "ccr_write of %#x to %#x (%#x)\n", val, offset,
1415           devi->pf->pf_ccr_offset));
1416         bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, pf->pf_ccr_offset + offset,
1417             val);
1418         return 0;
1419 }
1420
1421
1422 static device_method_t pccard_methods[] = {
1423         /* Device interface */
1424         DEVMETHOD(device_probe,         pccard_probe),
1425         DEVMETHOD(device_attach,        pccard_attach),
1426         DEVMETHOD(device_detach,        pccard_detach),
1427         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
1428         DEVMETHOD(device_suspend,       pccard_suspend),
1429         DEVMETHOD(device_resume,        pccard_resume),
1430
1431         /* Bus interface */
1432         DEVMETHOD(bus_print_child,      pccard_print_child),
1433         DEVMETHOD(bus_driver_added,     pccard_driver_added),
1434         DEVMETHOD(bus_child_detached,   pccard_child_detached),
1435         DEVMETHOD(bus_alloc_resource,   pccard_alloc_resource),
1436         DEVMETHOD(bus_release_resource, pccard_release_resource),
1437         DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1438         DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
1439         DEVMETHOD(bus_setup_intr,       pccard_setup_intr),
1440         DEVMETHOD(bus_teardown_intr,    pccard_teardown_intr),
1441         DEVMETHOD(bus_set_resource,     pccard_set_resource),
1442         DEVMETHOD(bus_get_resource,     pccard_get_resource),
1443         DEVMETHOD(bus_delete_resource,  pccard_delete_resource),
1444         DEVMETHOD(bus_probe_nomatch,    pccard_probe_nomatch),
1445         DEVMETHOD(bus_read_ivar,        pccard_read_ivar),
1446         DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1447         DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1448
1449         /* Card Interface */
1450         DEVMETHOD(card_set_res_flags,   pccard_set_res_flags),
1451         DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1452         DEVMETHOD(card_attach_card,     pccard_attach_card),
1453         DEVMETHOD(card_detach_card,     pccard_detach_card),
1454         DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1455         DEVMETHOD(card_cis_scan,        pccard_scan_cis),
1456         DEVMETHOD(card_attr_read,       pccard_attr_read_impl),
1457         DEVMETHOD(card_attr_write,      pccard_attr_write_impl),
1458         DEVMETHOD(card_ccr_read,        pccard_ccr_read_impl),
1459         DEVMETHOD(card_ccr_write,       pccard_ccr_write_impl),
1460
1461         { 0, 0 }
1462 };
1463
1464 static driver_t pccard_driver = {
1465         "pccard",
1466         pccard_methods,
1467         sizeof(struct pccard_softc)
1468 };
1469
1470 devclass_t      pccard_devclass;
1471
1472 /* Maybe we need to have a slot device? */
1473 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
1474 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
1475 MODULE_VERSION(pccard, 1);