sys/bus/pccard/pccard.c

   1 /*      $NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $     */
   2 /* $FreeBSD: src/sys/dev/pccard/pccard.c,v 1.70 2002/11/14 14:02:32 mux Exp $ */
   3 /* $DragonFly: src/sys/bus/pccard/pccard.c,v 1.17 2006/10/25 20:55:51 dillon Exp $ */
   4
   5 /*
   6  * Copyright (c) 1997 Marc Horowitz.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by Marc Horowitz.
  19  * 4. The name of the author may not be used to endorse or promote products
  20  *    derived from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <sys/param.h>
  35 #include <sys/systm.h>
  36 #include <sys/malloc.h>
  37 #include <sys/module.h>
  38 #include <sys/kernel.h>
  39 #include <sys/queue.h>
  40 #include <sys/sysctl.h>
  41 #include <sys/types.h>
  42
  43 #include <sys/bus.h>
  44 #include <sys/rman.h>
  45
  46 #include <net/ethernet.h>
  47
  48 #include <bus/pccard/pccardreg.h>
  49 #include <bus/pccard/pccardvar.h>
  50
  51 #include "power_if.h"
  52 #include "card_if.h"
  53
  54 #define PCCARDDEBUG
  55
  56 /* sysctl vars */
  57 SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
  58
  59 int     pccard_debug = 0;
  60 TUNABLE_INT("hw.pccard.debug", &pccard_debug);
  61 SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RW,
  62     &pccard_debug, 0,
  63   "pccard debug");
  64
  65 int     pccard_cis_debug = 0;
  66 TUNABLE_INT("hw.pccard.cis_debug", &pccard_cis_debug);
  67 SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RW,
  68     &pccard_cis_debug, 0, "pccard CIS debug");
  69
  70 #ifdef PCCARDDEBUG
  71 #define DPRINTF(arg) if (pccard_debug) printf arg
  72 #define DEVPRINTF(arg) if (pccard_debug) device_printf arg
  73 #define PRVERBOSE(arg) printf arg
  74 #define DEVPRVERBOSE(arg) device_printf arg
  75 #else
  76 #define DPRINTF(arg)
  77 #define DEVPRINTF(arg)
  78 #define PRVERBOSE(arg) if (bootverbose) printf arg
  79 #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
  80 #endif
  81
  82 static int      pccard_ccr_read(struct pccard_function *pf, int ccr);
  83 static void     pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
  84 static int      pccard_attach_card(device_t dev);
  85 static int      pccard_detach_card(device_t dev);
  86 static int      pccard_card_gettype(device_t dev, int *type);
  87 static void     pccard_function_init(struct pccard_function *pf);
  88 static void     pccard_function_free(struct pccard_function *pf);
  89 static int      pccard_function_enable(struct pccard_function *pf);
  90 static void     pccard_function_disable(struct pccard_function *pf);
  91 static int      pccard_compat_do_probe(device_t bus, device_t dev);
  92 static int      pccard_compat_do_attach(device_t bus, device_t dev);
  93 static int      pccard_add_children(device_t dev, int busno);
  94 static int      pccard_probe(device_t dev);
  95 static int      pccard_attach(device_t dev);
  96 static int      pccard_detach(device_t dev);
  97 static void     pccard_print_resources(struct resource_list *rl,
  98                     const char *name, int type, int count, const char *format);
  99 static int      pccard_print_child(device_t dev, device_t child);
 100 static int      pccard_set_resource(device_t dev, device_t child, int type,
 101                     int rid, u_long start, u_long count);
 102 static int      pccard_get_resource(device_t dev, device_t child, int type,
 103                     int rid, u_long *startp, u_long *countp);
 104 static void     pccard_delete_resource(device_t dev, device_t child, int type,
 105                     int rid);
 106 static int      pccard_set_res_flags(device_t dev, device_t child, int type,
 107                     int rid, u_int32_t flags);
 108 static int      pccard_set_memory_offset(device_t dev, device_t child, int rid,
 109                     u_int32_t offset, u_int32_t *deltap);
 110 static void     pccard_probe_nomatch(device_t cbdev, device_t child);
 111 static int      pccard_read_ivar(device_t bus, device_t child, int which,
 112                                  uintptr_t *result);
 113 static void     pccard_driver_added(device_t dev, driver_t *driver);
 114 static struct resource *pccard_alloc_resource(device_t dev,
 115                     device_t child, int type, int *rid, u_long start,
 116                     u_long end, u_long count, u_int flags);
 117 static int      pccard_release_resource(device_t dev, device_t child, int type,
 118                     int rid, struct resource *r);
 119 static void     pccard_child_detached(device_t parent, device_t dev);
 120 static void     pccard_intr(void *arg);
 121 static int      pccard_setup_intr(device_t dev, device_t child,
 122                     struct resource *irq, int flags, driver_intr_t *intr,
 123                     void *arg, void **cookiep, lwkt_serialize_t serializer);
 124 static int      pccard_teardown_intr(device_t dev, device_t child,
 125                     struct resource *r, void *cookie);
 126
 127 static const struct pccard_product *
 128 pccard_do_product_lookup(device_t bus, device_t dev,
 129                          const struct pccard_product *tab, size_t ent_size,
 130                          pccard_product_match_fn matchfn);
 131
 132
 133 static int
 134 pccard_ccr_read(struct pccard_function *pf, int ccr)
 135 {
 136         return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
 137             pf->pf_ccr_offset + ccr));
 138 }
 139
 140 static void
 141 pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
 142 {
 143         if ((pf->ccr_mask) & (1 << (ccr / 2))) {
 144                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
 145                     pf->pf_ccr_offset + ccr, val);
 146         }
 147 }
 148
 149 static int
 150 pccard_attach_card(device_t dev)
 151 {
 152         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 153         struct pccard_function *pf;
 154         struct pccard_ivar *ivar;
 155         device_t child;
 156         int i;
 157
 158         /*
 159          * this is here so that when socket_enable calls gettype, trt happens
 160          */
 161         STAILQ_INIT(&sc->card.pf_head);
 162
 163         DEVPRINTF((dev, "chip_socket_enable\n"));
 164         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 165
 166         DEVPRINTF((dev, "read_cis\n"));
 167         pccard_read_cis(sc);
 168
 169         DEVPRINTF((dev, "check_cis_quirks\n"));
 170         pccard_check_cis_quirks(dev);
 171
 172         /*
 173          * bail now if the card has no functions, or if there was an error in
 174          * the cis.
 175          */
 176
 177         if (sc->card.error) {
 178                 device_printf(dev, "CARD ERROR!\n");
 179                 return (1);
 180         }
 181         if (STAILQ_EMPTY(&sc->card.pf_head)) {
 182                 device_printf(dev, "Card has no functions!\n");
 183                 return (1);
 184         }
 185
 186         if (bootverbose || pccard_debug)
 187                 pccard_print_cis(dev);
 188
 189         DEVPRINTF((dev, "functions scanning\n"));
 190         i = -1;
 191         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 192                 i++;
 193                 if (STAILQ_EMPTY(&pf->cfe_head)) {
 194                         device_printf(dev,
 195                             "Function %d has no config entries.!\n", i);
 196                         continue;
 197                 }
 198                 pf->sc = sc;
 199                 pf->cfe = NULL;
 200                 pf->dev = NULL;
 201         }
 202         DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
 203             pccard_mfc(sc)));
 204
 205         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 206                 if (STAILQ_EMPTY(&pf->cfe_head))
 207                         continue;
 208                 /*
 209                  * In NetBSD, the drivers are responsible for activating
 210                  * each function of a card.  I think that in FreeBSD we
 211                  * want to activate them enough for the usual bus_*_resource
 212                  * routines will do the right thing.  This many mean a
 213                  * departure from the current NetBSD model.
 214                  *
 215                  * This seems to work well in practice for most cards.
 216                  * However, there are two cases that are problematic.
 217                  * If a driver wishes to pick and chose which config
 218                  * entry to use, then this method falls down.  These
 219                  * are usually older cards.  In addition, there are
 220                  * some cards that have multiple hardware units on the
 221                  * cards, but presents only one CIS chain.  These cards
 222                  * are combination cards, but only one of these units
 223                  * can be on at a time.
 224                  */
 225                 ivar = kmalloc(sizeof(struct pccard_ivar), M_DEVBUF,
 226                     M_INTWAIT | M_ZERO);
 227                 child = device_add_child(dev, NULL, -1);
 228                 device_set_ivars(child, ivar);
 229                 ivar->fcn = pf;
 230                 pf->dev = child;
 231                 /*
 232                  * XXX We might want to move the next two lines into
 233                  * XXX the pccard interface layer.  For the moment, this
 234                  * XXX is OK, but some drivers want to pick the config
 235                  * XXX entry to use as well as some address tweaks (mostly
 236                  * XXX due to bugs in decode logic that makes some
 237                  * XXX addresses illegal or broken).
 238                  */
 239                 pccard_function_init(pf);
 240                 if (sc->sc_enabled_count == 0)
 241                         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 242                 if (pccard_function_enable(pf) == 0 &&
 243                     device_probe_and_attach(child) == 0) {
 244                         DEVPRINTF((sc->dev, "function %d CCR at %d "
 245                             "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
 246                             pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
 247                             pccard_ccr_read(pf, 0x00),
 248                         pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
 249                         pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
 250                         pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
 251                         pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
 252                 } else {
 253                         if (pf->cfe != NULL)
 254                                 pccard_function_disable(pf);
 255                 }
 256         }
 257         return (0);
 258 }
 259
 260 static int
 261 pccard_detach_card(device_t dev)
 262 {
 263         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 264         struct pccard_function *pf;
 265         struct pccard_config_entry *cfe;
 266
 267         /*
 268          * We are running on either the PCCARD socket's event thread
 269          * or in user context detaching a device by user request.
 270          */
 271         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 272                 int state = device_get_state(pf->dev);
 273
 274                 if (state == DS_ATTACHED || state == DS_BUSY)
 275                         device_detach(pf->dev);
 276                 if (pf->cfe != NULL)
 277                         pccard_function_disable(pf);
 278                 pccard_function_free(pf);
 279                 device_delete_child(dev, pf->dev);
 280         }
 281         if (sc->sc_enabled_count == 0)
 282                 POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
 283
 284         while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
 285                 while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
 286                         STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
 287                         kfree(cfe, M_DEVBUF);
 288                 }
 289                 STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
 290                 kfree(pf, M_DEVBUF);
 291         }
 292         return (0);
 293 }
 294
 295 static const struct pccard_product *
 296 pccard_do_product_lookup(device_t bus, device_t dev,
 297                          const struct pccard_product *tab, size_t ent_size,
 298                          pccard_product_match_fn matchfn)
 299 {
 300         const struct pccard_product *ent;
 301         int matches;
 302         u_int32_t fcn;
 303         u_int32_t vendor;
 304         u_int32_t prod;
 305         const char *vendorstr;
 306         const char *prodstr;
 307
 308 #ifdef DIAGNOSTIC
 309         if (sizeof *ent > ent_size)
 310                 panic("pccard_product_lookup: bogus ent_size %ld",
 311                     (long) ent_size);
 312 #endif
 313         vendor = pccard_get_vendor(dev);
 314         prod = pccard_get_product(dev);
 315         fcn = pccard_get_function_number(dev);
 316         vendorstr = pccard_get_vendor_str(dev);
 317         prodstr = pccard_get_product_str(dev);
 318         for (ent = tab; ent->pp_name != NULL; ent =
 319             (const struct pccard_product *) ((const char *) ent + ent_size)) {
 320                 matches = 1;
 321                 if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
 322                     ent->pp_product == PCCARD_VENDOR_ANY &&
 323                     ent->pp_cis[0] == NULL &&
 324                     ent->pp_cis[1] == NULL) {
 325                         device_printf(dev,
 326                             "Total wildcard entry ignored for %s\n",
 327                             ent->pp_name);
 328                         continue;
 329                 }
 330                 if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
 331                     vendor != ent->pp_vendor)
 332                         matches = 0;
 333                 if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
 334                     prod != ent->pp_product)
 335                         matches = 0;
 336                 if (matches && fcn != ent->pp_expfunc)
 337                         matches = 0;
 338                 if (matches && ent->pp_cis[0] &&
 339                     strcmp(ent->pp_cis[0], vendorstr) != 0)
 340                         matches = 0;
 341                 if (matches && ent->pp_cis[1] &&
 342                     strcmp(ent->pp_cis[1], prodstr) != 0)
 343                         matches = 0;
 344                 /* XXX need to match cis[2] and cis[3] also XXX */
 345                 if (matchfn != NULL)
 346                         matches = (*matchfn)(dev, ent, matches);
 347                 if (matches)
 348                         return (ent);
 349         }
 350         return (NULL);
 351 }
 352
 353 static int
 354 pccard_card_gettype(device_t dev, int *type)
 355 {
 356         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 357         struct pccard_function *pf;
 358
 359         /*
 360          * set the iftype to memory if this card has no functions (not yet
 361          * probed), or only one function, and that is not initialized yet or
 362          * that is memory.
 363          */
 364         pf = STAILQ_FIRST(&sc->card.pf_head);
 365         if (pf == NULL ||
 366             (STAILQ_NEXT(pf, pf_list) == NULL &&
 367             (pf->cfe == NULL || pf->cfe->iftype == PCCARD_IFTYPE_MEMORY)))
 368                 *type = PCCARD_IFTYPE_MEMORY;
 369         else
 370                 *type = PCCARD_IFTYPE_IO;
 371         return (0);
 372 }
 373
 374 /*
 375  * Initialize a PCCARD function.  May be called as long as the function is
 376  * disabled.
 377  *
 378  * Note: pccard_function_init should not keep resources allocated.  It should
 379  * only set them up ala isa pnp, set the values in the rl lists, and return.
 380  * Any resource held after pccard_function_init is called is a bug.  However,
 381  * the bus routines to get the resources also assume that pccard_function_init
 382  * does this, so they need to be fixed too.
 383  */
 384 static void
 385 pccard_function_init(struct pccard_function *pf)
 386 {
 387         struct pccard_config_entry *cfe;
 388         int i;
 389         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 390         struct resource_list *rl = &devi->resources;
 391         struct resource_list_entry *rle;
 392         struct resource *r = 0;
 393         device_t bus;
 394         int start;
 395         int end;
 396         int spaces;
 397
 398         if (pf->pf_flags & PFF_ENABLED) {
 399                 printf("pccard_function_init: function is enabled");
 400                 return;
 401         }
 402         bus = device_get_parent(pf->dev);
 403         /* Remember which configuration entry we are using. */
 404         STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
 405                 for (i = 0; i < cfe->num_iospace; i++)
 406                         cfe->iores[i] = NULL;
 407                 cfe->irqres = NULL;
 408                 spaces = 0;
 409                 for (i = 0; i < cfe->num_iospace; i++) {
 410                         start = cfe->iospace[i].start;
 411                         if (start)
 412                                 end = start + cfe->iospace[i].length - 1;
 413                         else
 414                                 end = ~0;
 415                         cfe->iorid[i] = i;
 416                         DEVPRINTF((bus, "I/O rid %d start %x end %x\n",
 417                             i, start, end));
 418                         r = cfe->iores[i] = bus_alloc_resource(bus,
 419                             SYS_RES_IOPORT, &cfe->iorid[i], start, end,
 420                             cfe->iospace[i].length,
 421                             rman_make_alignment_flags(cfe->iospace[i].length));
 422                         if (cfe->iores[i] == NULL)
 423                                 goto not_this_one;
 424                         resource_list_add(rl, SYS_RES_IOPORT, cfe->iorid[i],
 425                             rman_get_start(r), rman_get_end(r),
 426                             cfe->iospace[i].length);
 427                         rle = resource_list_find(rl, SYS_RES_IOPORT,
 428                             cfe->iorid[i]);
 429                         rle->res = r;
 430                         spaces++;
 431                 }
 432                 if (cfe->num_memspace > 0) {
 433                         /*
 434                          * Not implement yet, Fix me.
 435                          */
 436                         DEVPRINTF((bus, "Memory space not yet implemented.\n"));
 437                 }
 438                 if (spaces == 0) {
 439                         DEVPRINTF((bus, "Neither memory nor I/O mampped\n"));
 440                         goto not_this_one;
 441                 }
 442                 if (cfe->irqmask) {
 443                         cfe->irqrid = 0;
 444                         r = cfe->irqres = bus_alloc_resource(bus, SYS_RES_IRQ,
 445                             &cfe->irqrid, 0, ~0, 1, 0);
 446                         if (cfe->irqres == NULL)
 447                                 goto not_this_one;
 448                         resource_list_add(rl, SYS_RES_IRQ, cfe->irqrid,
 449                             rman_get_start(r), rman_get_end(r), 1);
 450                         rle = resource_list_find(rl, SYS_RES_IRQ,
 451                             cfe->irqrid);
 452                         rle->res = r;
 453                 }
 454                 /* If we get to here, we've allocated all we need */
 455                 pf->cfe = cfe;
 456                 break;
 457             not_this_one:;
 458                 DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
 459                     cfe->number));
 460                 /*
 461                  * Release resources that we partially allocated
 462                  * from this config entry.
 463                  */
 464                 for (i = 0; i < cfe->num_iospace; i++) {
 465                         if (cfe->iores[i] != NULL) {
 466                                 bus_release_resource(bus, SYS_RES_IOPORT,
 467                                     cfe->iorid[i], cfe->iores[i]);
 468                                 rle = resource_list_find(rl, SYS_RES_IOPORT,
 469                                     cfe->iorid[i]);
 470                                 rle->res = NULL;
 471                                 resource_list_delete(rl, SYS_RES_IOPORT,
 472                                     cfe->iorid[i]);
 473                         }
 474                         cfe->iores[i] = NULL;
 475                 }
 476                 if (cfe->irqmask && cfe->irqres != NULL) {
 477                         bus_release_resource(bus, SYS_RES_IRQ,
 478                             cfe->irqrid, cfe->irqres);
 479                         rle = resource_list_find(rl, SYS_RES_IRQ,
 480                             cfe->irqrid);
 481                         rle->res = NULL;
 482                         resource_list_delete(rl, SYS_RES_IRQ, cfe->irqrid);
 483                         cfe->irqres = NULL;
 484                 }
 485         }
 486 }
 487
 488 /*
 489  * Free resources allocated by pccard_function_init(), May be called as long
 490  * as the function is disabled.
 491  *
 492  * NOTE: This function should be unnecessary.  pccard_function_init should
 493  * never keep resources initialized.
 494  */
 495 static void
 496 pccard_function_free(struct pccard_function *pf)
 497 {
 498         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 499         struct resource_list_entry *rle;
 500
 501         if (pf->pf_flags & PFF_ENABLED) {
 502                 printf("pccard_function_init: function is enabled");
 503                 return;
 504         }
 505
 506         SLIST_FOREACH(rle, &devi->resources, link) {
 507                 if (rle->res) {
 508                         if (rle->res->r_dev != pf->sc->dev)
 509                                 device_printf(pf->sc->dev,
 510                                     "function_free: Resource still owned by "
 511                                     "child, oops. "
 512                                     "(type=%d, rid=%d, addr=%lx)\n",
 513                                     rle->type, rle->rid,
 514                                     rman_get_start(rle->res));
 515                         BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
 516                             rle->res->r_dev, rle->type, rle->rid, rle->res);
 517                         rle->res = NULL;
 518                 }
 519         }
 520         resource_list_free(&devi->resources);
 521 }
 522
 523 static void
 524 pccard_mfc_adjust_iobase(struct pccard_function *pf, bus_addr_t addr,
 525                         bus_addr_t offset, bus_size_t size)
 526 {
 527         bus_size_t iosize, tmp;
 528
 529         if (addr != 0) {
 530                 if (pf->pf_mfc_iomax == 0) {
 531                         pf->pf_mfc_iobase = addr + offset;
 532                         pf->pf_mfc_iomax = pf->pf_mfc_iobase  + size;
 533                 } else {
 534                         if (pf->pf_mfc_iobase > addr  + offset)
 535                                 pf->pf_mfc_iobase = addr + offset;
 536                         if (pf->pf_mfc_iomax < addr + offset  + size)
 537                                 pf->pf_mfc_iomax = addr + offset + size;
 538                 }
 539         }
 540         tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
 541         for (iosize = 1; iosize < tmp; iosize <<= 1)
 542                 ;
 543         iosize--;
 544
 545         pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
 546                          pf->pf_mfc_iobase & 0xff);
 547         pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
 548                                  (pf->pf_mfc_iobase >> 8) & 0xff);
 549         pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
 550         pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
 551
 552         pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
 553 }
 554
 555 /* Enable a PCCARD function */
 556 static int
 557 pccard_function_enable(struct pccard_function *pf)
 558 {
 559         struct pccard_function *tmp;
 560         int reg;
 561         device_t dev = pf->sc->dev;
 562
 563         if (pf->cfe == NULL) {
 564                 DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
 565                 return (ENOMEM);
 566         }
 567
 568         /*
 569          * Increase the reference count on the socket, enabling power, if
 570          * necessary.
 571          */
 572         pf->sc->sc_enabled_count++;
 573
 574         if (pf->pf_flags & PFF_ENABLED) {
 575                 /*
 576                  * Don't do anything if we're already enabled.
 577                  */
 578                 return (0);
 579         }
 580
 581         /*
 582          * it's possible for different functions' CCRs to be in the same
 583          * underlying page.  Check for that.
 584          */
 585         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 586                 if ((tmp->pf_flags & PFF_ENABLED) &&
 587                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 588                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 589                     (tmp->ccr_base - tmp->pf_ccr_offset +
 590                     tmp->pf_ccr_realsize))) {
 591                         pf->pf_ccrt = tmp->pf_ccrt;
 592                         pf->pf_ccrh = tmp->pf_ccrh;
 593                         pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
 594
 595                         /*
 596                          * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
 597                          * tmp->ccr_base) + pf->ccr_base;
 598                          */
 599                         /* pf->pf_ccr_offset =
 600                             (tmp->pf_ccr_offset + pf->ccr_base) -
 601                             tmp->ccr_base; */
 602                         pf->pf_ccr_window = tmp->pf_ccr_window;
 603                         break;
 604                 }
 605         }
 606         if (tmp == NULL) {
 607                 pf->ccr_rid = 0;
 608                 pf->ccr_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
 609                     &pf->ccr_rid, 0, ~0, 1 << 10, RF_ACTIVE);
 610                 if (!pf->ccr_res)
 611                         goto bad;
 612                 DEVPRINTF((dev, "ccr_res == %lx-%lx, base=%x\n",
 613                     rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
 614                     pf->ccr_base));
 615                 CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
 616                     pf->ccr_rid, PCCARD_A_MEM_ATTR);
 617                 CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
 618                     pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
 619                 pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
 620                 pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
 621                 pf->pf_ccr_realsize = 1;
 622         }
 623
 624         reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
 625         reg |= PCCARD_CCR_OPTION_LEVIREQ;
 626         if (pccard_mfc(pf->sc)) {
 627                 reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
 628                         PCCARD_CCR_OPTION_ADDR_DECODE);
 629                 /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
 630         }
 631         pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
 632
 633         reg = 0;
 634         if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
 635                 reg |= PCCARD_CCR_STATUS_IOIS8;
 636         if (pf->cfe->flags & PCCARD_CFE_AUDIO)
 637                 reg |= PCCARD_CCR_STATUS_AUDIO;
 638         pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
 639
 640         pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
 641
 642         if (pccard_mfc(pf->sc))
 643                 pccard_mfc_adjust_iobase(pf, 0, 0, 0);
 644
 645 #ifdef PCCARDDEBUG
 646         if (pccard_debug) {
 647                 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 648                         device_printf(tmp->sc->dev,
 649                             "function %d CCR at %d offset %x: "
 650                             "%x %x %x %x, %x %x %x %x, %x\n",
 651                             tmp->number, tmp->pf_ccr_window,
 652                             tmp->pf_ccr_offset,
 653                             pccard_ccr_read(tmp, 0x00),
 654                             pccard_ccr_read(tmp, 0x02),
 655                             pccard_ccr_read(tmp, 0x04),
 656                             pccard_ccr_read(tmp, 0x06),
 657                             pccard_ccr_read(tmp, 0x0A),
 658                             pccard_ccr_read(tmp, 0x0C),
 659                             pccard_ccr_read(tmp, 0x0E),
 660                             pccard_ccr_read(tmp, 0x10),
 661                             pccard_ccr_read(tmp, 0x12));
 662                 }
 663         }
 664 #endif
 665         pf->pf_flags |= PFF_ENABLED;
 666         return (0);
 667
 668  bad:
 669         /*
 670          * Decrement the reference count, and power down the socket, if
 671          * necessary.
 672          */
 673         pf->sc->sc_enabled_count--;
 674         DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
 675
 676         return (1);
 677 }
 678
 679 /* Disable PCCARD function. */
 680 static void
 681 pccard_function_disable(struct pccard_function *pf)
 682 {
 683         struct pccard_function *tmp;
 684         device_t dev = pf->sc->dev;
 685
 686         if (pf->cfe == NULL)
 687                 panic("pccard_function_disable: function not initialized");
 688
 689         if ((pf->pf_flags & PFF_ENABLED) == 0) {
 690                 /*
 691                  * Don't do anything if we're already disabled.
 692                  */
 693                 return;
 694         }
 695
 696         if (pf->intr_handler != NULL) {
 697                 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 698                 struct resource_list_entry *rle =
 699                     resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
 700                 BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
 701                     pf->intr_handler_cookie);
 702         }
 703
 704         /*
 705          * it's possible for different functions' CCRs to be in the same
 706          * underlying page.  Check for that.  Note we mark us as disabled
 707          * first to avoid matching ourself.
 708          */
 709
 710         pf->pf_flags &= ~PFF_ENABLED;
 711         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 712                 if ((tmp->pf_flags & PFF_ENABLED) &&
 713                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 714                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 715                     (tmp->ccr_base - tmp->pf_ccr_offset +
 716                     tmp->pf_ccr_realsize)))
 717                         break;
 718         }
 719
 720         /* Not used by anyone else; unmap the CCR. */
 721         if (tmp == NULL) {
 722                 bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
 723                     pf->ccr_res);
 724                 pf->ccr_res = NULL;
 725         }
 726
 727         /*
 728          * Decrement the reference count, and power down the socket, if
 729          * necessary.
 730          */
 731         pf->sc->sc_enabled_count--;
 732 }
 733
 734 /*
 735  * simulate the old "probe" routine.  In the new world order, the driver
 736  * needs to grab devices while in the old they were assigned to the device by
 737  * the pccardd process.  These symbols are exported to the upper layers.
 738  */
 739 static int
 740 pccard_compat_do_probe(device_t bus, device_t dev)
 741 {
 742         return (CARD_COMPAT_MATCH(dev));
 743 }
 744
 745 static int
 746 pccard_compat_do_attach(device_t bus, device_t dev)
 747 {
 748         int err;
 749
 750         err = CARD_COMPAT_PROBE(dev);
 751         if (err == 0)
 752                 err = CARD_COMPAT_ATTACH(dev);
 753         return (err);
 754 }
 755
 756 #define PCCARD_NPORT    2
 757 #define PCCARD_NMEM     5
 758 #define PCCARD_NIRQ     1
 759 #define PCCARD_NDRQ     0
 760
 761 static int
 762 pccard_add_children(device_t dev, int busno)
 763 {
 764         /* Call parent to scan for any current children */
 765         return (0);
 766 }
 767
 768 static int
 769 pccard_probe(device_t dev)
 770 {
 771         device_set_desc(dev, "16-bit PCCard bus");
 772         return (pccard_add_children(dev, device_get_unit(dev)));
 773 }
 774
 775 static int
 776 pccard_attach(device_t dev)
 777 {
 778         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 779
 780         sc->dev = dev;
 781         sc->sc_enabled_count = 0;
 782         return (bus_generic_attach(dev));
 783 }
 784
 785 static int
 786 pccard_detach(device_t dev)
 787 {
 788         pccard_detach_card(dev);
 789         return 0;
 790 }
 791
 792 static int
 793 pccard_suspend(device_t self)
 794 {
 795         pccard_detach_card(self);
 796         return (0);
 797 }
 798
 799 static int
 800 pccard_shutdown(device_t self)
 801 {
 802         pccard_detach_card(self);
 803         bus_generic_shutdown(self);
 804         return (0);
 805 }
 806
 807 static int
 808 pccard_resume(device_t self)
 809 {
 810         return (0);
 811 }
 812
 813 static void
 814 pccard_print_resources(struct resource_list *rl, const char *name, int type,
 815     int count, const char *format)
 816 {
 817         struct resource_list_entry *rle;
 818         int printed;
 819         int i;
 820
 821         printed = 0;
 822         for (i = 0; i < count; i++) {
 823                 rle = resource_list_find(rl, type, i);
 824                 if (rle != NULL) {
 825                         if (printed == 0)
 826                                 printf(" %s ", name);
 827                         else if (printed > 0)
 828                                 printf(",");
 829                         printed++;
 830                         printf(format, rle->start);
 831                         if (rle->count > 1) {
 832                                 printf("-");
 833                                 printf(format, rle->start + rle->count - 1);
 834                         }
 835                 } else if (i > 3) {
 836                         /* check the first few regardless */
 837                         break;
 838                 }
 839         }
 840 }
 841
 842 static int
 843 pccard_print_child(device_t dev, device_t child)
 844 {
 845         struct pccard_ivar *devi = PCCARD_IVAR(child);
 846         struct resource_list *rl = &devi->resources;
 847         int retval = 0;
 848
 849         retval += bus_print_child_header(dev, child);
 850         retval += printf(" at");
 851
 852         if (devi != NULL) {
 853                 pccard_print_resources(rl, "port", SYS_RES_IOPORT,
 854                     PCCARD_NPORT, "%#lx");
 855                 pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
 856                     PCCARD_NMEM, "%#lx");
 857                 pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
 858                     "%ld");
 859                 pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
 860                     "%ld");
 861                 retval += printf(" function %d config %d", devi->fcn->number,
 862                     devi->fcn->cfe->number);
 863         }
 864
 865         retval += bus_print_child_footer(dev, child);
 866
 867         return (retval);
 868 }
 869
 870 static int
 871 pccard_set_resource(device_t dev, device_t child, int type, int rid,
 872                  u_long start, u_long count)
 873 {
 874         struct pccard_ivar *devi = PCCARD_IVAR(child);
 875         struct resource_list *rl = &devi->resources;
 876
 877         if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
 878             && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
 879                 return (EINVAL);
 880         if (rid < 0)
 881                 return (EINVAL);
 882         if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
 883                 return (EINVAL);
 884         if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
 885                 return (EINVAL);
 886         if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
 887                 return (EINVAL);
 888         if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
 889                 return (EINVAL);
 890
 891         resource_list_add(rl, type, rid, start, start + count - 1, count);
 892         if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
 893             type, &rid, start, start + count - 1, count, 0))
 894                 return 0;
 895         else
 896                 return ENOMEM;
 897 }
 898
 899 static int
 900 pccard_get_resource(device_t dev, device_t child, int type, int rid,
 901     u_long *startp, u_long *countp)
 902 {
 903         struct pccard_ivar *devi = PCCARD_IVAR(child);
 904         struct resource_list *rl = &devi->resources;
 905         struct resource_list_entry *rle;
 906
 907         rle = resource_list_find(rl, type, rid);
 908         if (rle == NULL)
 909                 return (ENOENT);
 910
 911         if (startp != NULL)
 912                 *startp = rle->start;
 913         if (countp != NULL)
 914                 *countp = rle->count;
 915
 916         return (0);
 917 }
 918
 919 static void
 920 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
 921 {
 922         struct pccard_ivar *devi = PCCARD_IVAR(child);
 923         struct resource_list *rl = &devi->resources;
 924         resource_list_delete(rl, type, rid);
 925 }
 926
 927 static int
 928 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
 929     u_int32_t flags)
 930 {
 931         return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
 932             rid, flags));
 933 }
 934
 935 static int
 936 pccard_set_memory_offset(device_t dev, device_t child, int rid,
 937     u_int32_t offset, u_int32_t *deltap)
 938
 939 {
 940         return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
 941             offset, deltap));
 942 }
 943
 944 static void
 945 pccard_probe_nomatch(device_t bus, device_t child)
 946 {
 947         struct pccard_ivar *devi = PCCARD_IVAR(child);
 948         struct pccard_function *func = devi->fcn;
 949         struct pccard_softc *sc = PCCARD_SOFTC(bus);
 950
 951         device_printf(bus, "<unknown card>");
 952         printf(" (manufacturer=0x%04x, product=0x%04x) at function %d\n",
 953           sc->card.manufacturer, sc->card.product, func->number);
 954         device_printf(bus, "   CIS info: %s, %s, %s\n", sc->card.cis1_info[0],
 955           sc->card.cis1_info[1], sc->card.cis1_info[2]);
 956         return;
 957 }
 958
 959 static int
 960 pccard_child_location_str(device_t bus, device_t child, char *buf,
 961     size_t buflen)
 962 {
 963         struct pccard_ivar *devi = PCCARD_IVAR(child);
 964         struct pccard_function *func = devi->fcn;
 965
 966         snprintf(buf, buflen, "function=%d", func->number);
 967         return (0);
 968 }
 969
 970 static int
 971 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
 972     size_t buflen)
 973 {
 974         struct pccard_ivar *devi = PCCARD_IVAR(child);
 975         struct pccard_function *func = devi->fcn;
 976         struct pccard_softc *sc = PCCARD_SOFTC(bus);
 977
 978         snprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x "
 979             "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d",
 980             sc->card.manufacturer, sc->card.product, sc->card.cis1_info[0],
 981             sc->card.cis1_info[1], func->function);
 982         return (0);
 983 }
 984
 985 static int
 986 pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result)
 987 {
 988         struct pccard_ivar *devi = PCCARD_IVAR(child);
 989         struct pccard_function *func = devi->fcn;
 990         struct pccard_softc *sc = PCCARD_SOFTC(bus);
 991
 992         switch (which) {
 993         default:
 994         case PCCARD_IVAR_ETHADDR:
 995                 *result = (uintptr_t)func->pf_funce_lan_nid;
 996                 break;
 997         case PCCARD_IVAR_VENDOR:
 998                 *result = sc->card.manufacturer;
 999                 break;
1000         case PCCARD_IVAR_PRODUCT:
1001                 *result = sc->card.product;
1002                 break;
1003         case PCCARD_IVAR_PRODEXT:
1004                 *result = sc->card.prodext;
1005                 break;
1006         case PCCARD_IVAR_FUNCTION:
1007                 *result = func->function;
1008                 break;
1009         case PCCARD_IVAR_FUNCTION_NUMBER:
1010                 if (!func) {
1011                         device_printf(bus, "No function number, bug!\n");
1012                         return (ENOENT);
1013                 }
1014                 *result = func->number;
1015                 break;
1016         case PCCARD_IVAR_VENDOR_STR:
1017                 *result = (uintptr_t)sc->card.cis1_info[0];
1018                 break;
1019         case PCCARD_IVAR_PRODUCT_STR:
1020                 *result = (uintptr_t)sc->card.cis1_info[1];
1021                 break;
1022         case PCCARD_IVAR_CIS3_STR:
1023                 *result = (uintptr_t)sc->card.cis1_info[2];
1024                 break;
1025         case PCCARD_IVAR_CIS4_STR:
1026                 *result = (uintptr_t)sc->card.cis1_info[3];
1027                 break;
1028         }
1029         return (0);
1030 }
1031
1032 static void
1033 pccard_driver_added(device_t dev, driver_t *driver)
1034 {
1035         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1036         struct pccard_function *pf;
1037         device_t child;
1038
1039         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1040                 if (STAILQ_EMPTY(&pf->cfe_head))
1041                         continue;
1042                 child = pf->dev;
1043                 if (device_get_state(child) != DS_NOTPRESENT)
1044                         continue;
1045                 if (pccard_function_enable(pf) == 0 &&
1046                     device_probe_and_attach(child) == 0) {
1047                         DEVPRINTF((sc->dev, "function %d CCR at %d "
1048                             "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
1049                             pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
1050                             pccard_ccr_read(pf, 0x00),
1051                         pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
1052                         pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
1053                         pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
1054                         pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
1055                 } else {
1056                         if (pf->cfe != NULL)
1057                                 pccard_function_disable(pf);
1058                 }
1059         }
1060         return;
1061 }
1062
1063 static struct resource *
1064 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1065     u_long start, u_long end, u_long count, u_int flags)
1066 {
1067         struct pccard_ivar *dinfo;
1068         struct resource_list_entry *rle = 0;
1069         int passthrough = (device_get_parent(child) != dev);
1070         int isdefault = (start == 0 && end == ~0UL && count == 1);
1071         struct resource *r = NULL;
1072
1073
1074         if (passthrough) {
1075                 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1076                     type, rid, start, end, count, flags));
1077         }
1078
1079         dinfo = device_get_ivars(child);
1080         rle = resource_list_find(&dinfo->resources, type, *rid);
1081
1082         if (rle == NULL && isdefault)
1083                 return (NULL);          /* no resource of that type/rid */
1084
1085         if ((rle == NULL) || (rle->res == NULL)) {
1086
1087                 r = bus_alloc_resource(dev, type, rid, start, end,
1088                             count, rman_make_alignment_flags(count));
1089                 if (r == NULL)
1090                         goto bad;
1091                 resource_list_add(&dinfo->resources, type, *rid,
1092                             rman_get_start(r), rman_get_end(r), count);
1093                 rle = resource_list_find(&dinfo->resources, type, *rid);
1094                 if (!rle)
1095                         goto bad;
1096                 rle->res = r;
1097         }
1098         if (rle->res->r_dev != dev)
1099                 return (NULL);
1100         bus_release_resource(dev, type, *rid, rle->res);
1101         rle->res = NULL;
1102         switch(type) {
1103         case SYS_RES_IOPORT:
1104         case SYS_RES_MEMORY:
1105                 if (!(flags & RF_ALIGNMENT_MASK))
1106                         flags |= rman_make_alignment_flags(rle->count);
1107                 break;
1108         case SYS_RES_IRQ:
1109                 flags |= RF_SHAREABLE;
1110                 break;
1111         }
1112         rle->res = resource_list_alloc(&dinfo->resources, dev, child,
1113             type, rid, rle->start, rle->end, rle->count, flags);
1114         return (rle->res);
1115 bad:;
1116         device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1117         return (NULL);
1118 }
1119
1120 static int
1121 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1122     struct resource *r)
1123 {
1124         struct pccard_ivar *dinfo;
1125         int passthrough = (device_get_parent(child) != dev);
1126         struct resource_list_entry *rle = 0;
1127         int ret;
1128         int flags;
1129
1130         if (passthrough)
1131                 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1132                     type, rid, r);
1133
1134         dinfo = device_get_ivars(child);
1135
1136         rle = resource_list_find(&dinfo->resources, type, rid);
1137
1138         if (!rle) {
1139                 device_printf(dev, "Allocated resource not found, "
1140                     "%d %x %lx %lx\n",
1141                     type, rid, rman_get_start(r), rman_get_size(r));
1142                 return ENOENT;
1143         }
1144         if (!rle->res) {
1145                 device_printf(dev, "Allocated resource not recorded\n");
1146                 return ENOENT;
1147         }
1148
1149         ret = BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1150             type, rid, r);
1151         switch(type) {
1152         case SYS_RES_IOPORT:
1153         case SYS_RES_MEMORY:
1154                 flags = rman_make_alignment_flags(rle->count);
1155                 break;
1156         case SYS_RES_IRQ:
1157                 flags = RF_SHAREABLE;
1158                 break;
1159         default:
1160                 flags = 0;
1161         }
1162         rle->res = bus_alloc_resource(dev, type, &rid,
1163             rle->start, rle->end, rle->count, flags);
1164         if (rle->res == NULL)
1165                 device_printf(dev, "release_resource: "
1166                     "unable to reaquire resource\n");
1167         return ret;
1168 }
1169
1170 static void
1171 pccard_child_detached(device_t parent, device_t dev)
1172 {
1173         struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1174         struct pccard_function *pf = ivar->fcn;
1175
1176         pccard_function_disable(pf);
1177 }
1178
1179 static void
1180 pccard_intr(void *arg)
1181 {
1182         struct pccard_function *pf = (struct pccard_function*) arg;
1183         int reg;
1184         int doisr = 1;
1185
1186         /*
1187          * MFC cards know if they interrupted, so we have to ack the
1188          * interrupt and call the ISR.  Non-MFC cards don't have these
1189          * bits, so they always get called.  Many non-MFC cards have
1190          * this bit set always upon read, but some do not.
1191          *
1192          * We always ack the interrupt, even if there's no ISR
1193          * for the card.  This is done on the theory that acking
1194          * the interrupt will pacify the card enough to keep an
1195          * interrupt storm from happening.  Of course this won't
1196          * help in the non-MFC case.
1197          */
1198         if (pccard_mfc(pf->sc)) {
1199                 reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1200                 if (reg & PCCARD_CCR_STATUS_INTR)
1201                         pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1202                             reg & ~PCCARD_CCR_STATUS_INTR);
1203                 else
1204                         doisr = 0;
1205         }
1206         if (pf->intr_handler != NULL && doisr)
1207                 pf->intr_handler(pf->intr_handler_arg);
1208 }
1209
1210 static int
1211 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1212     int flags, driver_intr_t *intr, void *arg,
1213     void **cookiep, lwkt_serialize_t serializer)
1214 {
1215         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1216         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1217         struct pccard_function *func = ivar->fcn;
1218         int err;
1219
1220         if (func->intr_handler != NULL)
1221                 panic("Only one interrupt handler per function allowed");
1222         err = bus_generic_setup_intr(dev, child, irq, flags, pccard_intr,
1223                                      func, cookiep, serializer);
1224         if (err != 0)
1225                 return (err);
1226         func->intr_handler = intr;
1227         func->intr_handler_arg = arg;
1228         func->intr_handler_cookie = *cookiep;
1229         if (pccard_mfc(sc)) {
1230                 pccard_ccr_write(func, PCCARD_CCR_OPTION,
1231                     pccard_ccr_read(func, PCCARD_CCR_OPTION) |
1232                     PCCARD_CCR_OPTION_IREQ_ENABLE);
1233         }
1234         return (0);
1235 }
1236
1237 static int
1238 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1239     void *cookie)
1240 {
1241         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1242         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1243         struct pccard_function *func = ivar->fcn;
1244         int ret;
1245
1246         if (pccard_mfc(sc)) {
1247                 pccard_ccr_write(func, PCCARD_CCR_OPTION,
1248                     pccard_ccr_read(func, PCCARD_CCR_OPTION) &
1249                     ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1250         }
1251         ret = bus_generic_teardown_intr(dev, child, r, cookie);
1252         if (ret == 0) {
1253                 func->intr_handler = NULL;
1254                 func->intr_handler_arg = NULL;
1255                 func->intr_handler_cookie = NULL;
1256         }
1257
1258         return (ret);
1259 }
1260
1261 static int
1262 pccard_activate_resource(device_t brdev, device_t child, int type,
1263                         int rid, struct resource *r)
1264 {
1265         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1266         struct pccard_function *pf = ivar->fcn;
1267
1268         switch(type) {
1269         case SYS_RES_IOPORT:
1270                 if (pccard_mfc(pf->sc))
1271                         pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1272                                         rman_get_size(r));
1273                 break;
1274         default:
1275                 break;
1276         }
1277         return (bus_generic_activate_resource(brdev, child, type, rid, r));
1278 }
1279
1280
1281 static device_method_t pccard_methods[] = {
1282         /* Device interface */
1283         DEVMETHOD(device_probe,         pccard_probe),
1284         DEVMETHOD(device_attach,        pccard_attach),
1285         DEVMETHOD(device_detach,        pccard_detach),
1286         DEVMETHOD(device_shutdown,      pccard_shutdown),
1287         DEVMETHOD(device_suspend,       pccard_suspend),
1288         DEVMETHOD(device_resume,        pccard_resume),
1289
1290         /* Bus interface */
1291         DEVMETHOD(bus_print_child,      pccard_print_child),
1292         DEVMETHOD(bus_driver_added,     pccard_driver_added),
1293         DEVMETHOD(bus_child_detached,   pccard_child_detached),
1294         DEVMETHOD(bus_alloc_resource,   pccard_alloc_resource),
1295         DEVMETHOD(bus_release_resource, pccard_release_resource),
1296         DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1297         DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
1298         DEVMETHOD(bus_setup_intr,       pccard_setup_intr),
1299         DEVMETHOD(bus_teardown_intr,    pccard_teardown_intr),
1300         DEVMETHOD(bus_set_resource,     pccard_set_resource),
1301         DEVMETHOD(bus_get_resource,     pccard_get_resource),
1302         DEVMETHOD(bus_delete_resource,  pccard_delete_resource),
1303         DEVMETHOD(bus_probe_nomatch,    pccard_probe_nomatch),
1304         DEVMETHOD(bus_read_ivar,        pccard_read_ivar),
1305         DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1306         DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1307
1308         /* Card Interface */
1309         DEVMETHOD(card_set_res_flags,   pccard_set_res_flags),
1310         DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1311         DEVMETHOD(card_get_type,        pccard_card_gettype),
1312         DEVMETHOD(card_attach_card,     pccard_attach_card),
1313         DEVMETHOD(card_detach_card,     pccard_detach_card),
1314         DEVMETHOD(card_compat_do_probe, pccard_compat_do_probe),
1315         DEVMETHOD(card_compat_do_attach, pccard_compat_do_attach),
1316         DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1317
1318         { 0, 0 }
1319 };
1320
1321 static driver_t pccard_driver = {
1322         "pccard",
1323         pccard_methods,
1324         sizeof(struct pccard_softc)
1325 };
1326
1327 devclass_t      pccard_devclass;
1328
1329 /* Maybe we need to have a slot device? */
1330 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
1331 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
1332 DRIVER_MODULE(pccard, tcic, pccard_driver, pccard_devclass, 0, 0);
1333 MODULE_VERSION(pccard, 1);
1334 /*MODULE_DEPEND(pccard, pcic, 1, 1, 1);*/