sys/bus/pccard/pccard.c

   1 /*      $NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $     */
   2
   3 /*-
   4  * Copyright (c) 1997 Marc Horowitz.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by Marc Horowitz.
  17  * 4. The name of the author may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  *
  31  * $FreeBSD: src/sys/dev/pccard/pccard.c,v 1.108 2005/07/15 01:43:08 imp Exp $
  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 #include <bus/pccard/pccard_cis.h>
  51
  52 #include "power_if.h"
  53 #include "card_if.h"
  54
  55 #define PCCARDDEBUG
  56
  57 /* sysctl vars */
  58 SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
  59
  60 int     pccard_debug = 0;
  61 TUNABLE_INT("hw.pccard.debug", &pccard_debug);
  62 SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RW,
  63     &pccard_debug, 0,
  64   "pccard debug");
  65
  66 int     pccard_cis_debug = 0;
  67 TUNABLE_INT("hw.pccard.cis_debug", &pccard_cis_debug);
  68 SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RW,
  69     &pccard_cis_debug, 0, "pccard CIS debug");
  70
  71 #ifdef PCCARDDEBUG
  72 #define DPRINTF(arg) if (pccard_debug) kprintf arg
  73 #define DEVPRINTF(arg) if (pccard_debug) device_printf arg
  74 #define PRVERBOSE(arg) kprintf arg
  75 #define DEVPRVERBOSE(arg) device_printf arg
  76 #else
  77 #define DPRINTF(arg)
  78 #define DEVPRINTF(arg)
  79 #define PRVERBOSE(arg) if (bootverbose) kprintf arg
  80 #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
  81 #endif
  82
  83 static int      pccard_ccr_read(struct pccard_function *pf, int ccr);
  84 static void     pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
  85 static int      pccard_attach_card(device_t dev);
  86 static int      pccard_detach_card(device_t dev);
  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, int cpuid);
 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, uint32_t flags);
 108 static int      pccard_set_memory_offset(device_t dev, device_t child, int rid,
 109                     uint32_t offset, uint32_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                     u_char *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, int cpuid);
 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_set_default_descr(device_t dev)
 151 {
 152         const char *vendorstr, *prodstr;
 153         uint32_t vendor, prod;
 154         char *str;
 155
 156         vendorstr = pccard_get_vendor_str(dev);
 157         prodstr = pccard_get_product_str(dev);
 158         if (vendorstr != NULL && prodstr != NULL) {
 159                 str = kmalloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF,
 160                     M_WAITOK);
 161                 ksprintf(str, "%s %s", vendorstr, prodstr);
 162                 device_set_desc_copy(dev, str);
 163                 kfree(str, M_DEVBUF);
 164         } else {
 165                 vendor = pccard_get_vendor(dev);
 166                 prod = pccard_get_product(dev);
 167
 168                 str = kmalloc(100, M_DEVBUF, M_WAITOK);
 169                 ksnprintf(str, 100, "vendor=0x%x product=0x%x", vendor, prod);
 170                 device_set_desc_copy(dev, str);
 171                 kfree(str, M_DEVBUF);
 172         }
 173         return (0);
 174 }
 175
 176 static int
 177 pccard_attach_card(device_t dev)
 178 {
 179         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 180         struct pccard_function *pf;
 181         struct pccard_ivar *ivar;
 182         device_t child;
 183         int i;
 184
 185         /*
 186          * this is here so that when socket_enable calls gettype, trt happens
 187          */
 188         STAILQ_INIT(&sc->card.pf_head);
 189
 190         DEVPRINTF((dev, "chip_socket_enable\n"));
 191         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 192
 193         DEVPRINTF((dev, "read_cis\n"));
 194         pccard_read_cis(sc);
 195
 196         DEVPRINTF((dev, "check_cis_quirks\n"));
 197         pccard_check_cis_quirks(dev);
 198
 199         /*
 200          * bail now if the card has no functions, or if there was an error in
 201          * the cis.
 202          */
 203
 204         if (sc->card.error) {
 205                 device_printf(dev, "CARD ERROR!\n");
 206                 return (1);
 207         }
 208         if (STAILQ_EMPTY(&sc->card.pf_head)) {
 209                 device_printf(dev, "Card has no functions!\n");
 210                 return (1);
 211         }
 212
 213         if (bootverbose || pccard_debug)
 214                 pccard_print_cis(dev);
 215
 216         DEVPRINTF((dev, "functions scanning\n"));
 217         i = -1;
 218         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 219                 i++;
 220                 if (STAILQ_EMPTY(&pf->cfe_head)) {
 221                         device_printf(dev,
 222                             "Function %d has no config entries.!\n", i);
 223                         continue;
 224                 }
 225                 pf->sc = sc;
 226                 pf->cfe = NULL;
 227                 pf->dev = NULL;
 228         }
 229         DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
 230             pccard_mfc(sc)));
 231
 232         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 233                 if (STAILQ_EMPTY(&pf->cfe_head))
 234                         continue;
 235                 /*
 236                  * In NetBSD, the drivers are responsible for activating
 237                  * each function of a card.  I think that in FreeBSD we
 238                  * want to activate them enough for the usual bus_*_resource
 239                  * routines will do the right thing.  This many mean a
 240                  * departure from the current NetBSD model.
 241                  *
 242                  * This seems to work well in practice for most cards.
 243                  * However, there are two cases that are problematic.
 244                  * If a driver wishes to pick and chose which config
 245                  * entry to use, then this method falls down.  These
 246                  * are usually older cards.  In addition, there are
 247                  * some cards that have multiple hardware units on the
 248                  * cards, but presents only one CIS chain.  These cards
 249                  * are combination cards, but only one of these units
 250                  * can be on at a time.
 251                  */
 252                 ivar = kmalloc(sizeof(struct pccard_ivar), M_DEVBUF,
 253                     M_WAITOK | M_ZERO);
 254                 resource_list_init(&ivar->resources);
 255                 child = device_add_child(dev, NULL, -1);
 256                 device_set_ivars(child, ivar);
 257                 ivar->pf = pf;
 258                 pf->dev = child;
 259                 /*
 260                  * XXX We might want to move the next three lines into
 261                  * XXX the pccard interface layer.  For the moment, this
 262                  * XXX is OK, but some drivers want to pick the config
 263                  * XXX entry to use as well as some address tweaks (mostly
 264                  * XXX due to bugs in decode logic that makes some
 265                  * XXX addresses illegal or broken).
 266                  */
 267                 pccard_function_init(pf);
 268                 if (sc->sc_enabled_count == 0)
 269                         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 270                 if (pccard_function_enable(pf) == 0 &&
 271                     pccard_set_default_descr(child) == 0 &&
 272                     device_probe_and_attach(child) == 0) {
 273                         DEVPRINTF((sc->dev, "function %d CCR at %d "
 274                             "offset %x mask %x: "
 275                             "%x %x %x %x, %x %x %x %x, %x\n",
 276                             pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
 277                             pf->ccr_mask, pccard_ccr_read(pf, 0x00),
 278                         pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
 279                         pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
 280                         pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
 281                         pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
 282                 } else {
 283                         if (pf->cfe != NULL)
 284                                 pccard_function_disable(pf);
 285                 }
 286         }
 287         return (0);
 288 }
 289
 290 static int
 291 pccard_detach_card(device_t dev)
 292 {
 293         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 294         struct pccard_function *pf;
 295         struct pccard_config_entry *cfe;
 296         int state;
 297
 298         /*
 299          * We are running on either the PCCARD socket's event thread
 300          * or in user context detaching a device by user request.
 301          */
 302         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 303                 if (pf->dev == NULL)
 304                         continue;
 305                 state = device_get_state(pf->dev);
 306                 if (state == DS_ATTACHED || state == DS_BUSY)
 307                         device_detach(pf->dev);
 308                 if (pf->cfe != NULL)
 309                         pccard_function_disable(pf);
 310                 pccard_function_free(pf);
 311                 device_delete_child(dev, pf->dev);
 312         }
 313         if (sc->sc_enabled_count == 0)
 314                 POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
 315
 316         while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
 317                 while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
 318                         STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
 319                         kfree(cfe, M_DEVBUF);
 320                 }
 321                 STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
 322                 kfree(pf, M_DEVBUF);
 323         }
 324         return (0);
 325 }
 326
 327 static const struct pccard_product *
 328 pccard_do_product_lookup(device_t bus, device_t dev,
 329     const struct pccard_product *tab, size_t ent_size,
 330     pccard_product_match_fn matchfn)
 331 {
 332         const struct pccard_product *ent;
 333         int matches;
 334         uint32_t vendor;
 335         uint32_t prod;
 336         const char *vendorstr;
 337         const char *prodstr;
 338         const char *cis3str;
 339         const char *cis4str;
 340
 341 #ifdef DIAGNOSTIC
 342         if (sizeof *ent > ent_size)
 343                 panic("pccard_product_lookup: bogus ent_size %jd",
 344                     (intmax_t) ent_size);
 345 #endif
 346         vendor = pccard_get_vendor(dev);
 347         prod = pccard_get_product(dev);
 348         vendorstr = pccard_get_vendor_str(dev);
 349         prodstr = pccard_get_product_str(dev);
 350         cis3str = pccard_get_cis3_str(dev);
 351         cis4str = pccard_get_cis4_str(dev);
 352
 353         for (ent = tab; ent->pp_vendor != 0; ent =
 354             (const struct pccard_product *) ((const char *) ent + ent_size)) {
 355                 matches = 1;
 356                 if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
 357                     ent->pp_product == PCCARD_PRODUCT_ANY &&
 358                     ent->pp_cis[0] == NULL &&
 359                     ent->pp_cis[1] == NULL) {
 360                         if (ent->pp_name)
 361                                 device_printf(dev,
 362                                     "Total wildcard entry ignored for %s\n",
 363                                     ent->pp_name);
 364                         continue;
 365                 }
 366                 if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
 367                     vendor != ent->pp_vendor)
 368                         matches = 0;
 369                 if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
 370                     prod != ent->pp_product)
 371                         matches = 0;
 372                 if (matches && ent->pp_cis[0] &&
 373                     (vendorstr == NULL ||
 374                     strcmp(ent->pp_cis[0], vendorstr) != 0))
 375                         matches = 0;
 376                 if (matches && ent->pp_cis[1] &&
 377                     (prodstr == NULL ||
 378                     strcmp(ent->pp_cis[1], prodstr) != 0))
 379                         matches = 0;
 380                 if (matches && ent->pp_cis[2] &&
 381                     (cis3str == NULL ||
 382                     strcmp(ent->pp_cis[2], cis3str) != 0))
 383                         matches = 0;
 384                 if (matches && ent->pp_cis[3] &&
 385                     (cis4str == NULL ||
 386                     strcmp(ent->pp_cis[3], cis4str) != 0))
 387                         matches = 0;
 388                 if (matchfn != NULL)
 389                         matches = (*matchfn)(dev, ent, matches);
 390                 if (matches)
 391                         return (ent);
 392         }
 393         return (NULL);
 394 }
 395
 396 /*
 397  * Initialize a PCCARD function.  May be called as long as the function is
 398  * disabled.
 399  *
 400  * Note: pccard_function_init should not keep resources allocated.  It should
 401  * only set them up ala isa pnp, set the values in the rl lists, and return.
 402  * Any resource held after pccard_function_init is called is a bug.  However,
 403  * the bus routines to get the resources also assume that pccard_function_init
 404  * does this, so they need to be fixed too.
 405  */
 406 static void
 407 pccard_function_init(struct pccard_function *pf)
 408 {
 409         struct pccard_config_entry *cfe;
 410         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 411         struct resource_list *rl = &devi->resources;
 412         struct resource_list_entry *rle;
 413         struct resource *r = 0;
 414         device_t bus;
 415         u_long start, end, len;
 416         int i, rid, spaces;
 417
 418         if (pf->pf_flags & PFF_ENABLED) {
 419                 kprintf("pccard_function_init: function is enabled");
 420                 return;
 421         }
 422         bus = device_get_parent(pf->dev);
 423         /* Remember which configuration entry we are using. */
 424         STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
 425                 if (cfe->iftype != PCCARD_IFTYPE_IO)
 426                         continue;
 427                 spaces = 0;
 428                 for (i = 0; i < cfe->num_iospace; i++) {
 429                         start = cfe->iospace[i].start;
 430                         if (start)
 431                                 end = start + cfe->iospace[i].length - 1;
 432                         else
 433                                 end = ~0UL;
 434                         DEVPRINTF((bus, "I/O rid %d start %lx end %lx\n",
 435                             i, start, end));
 436                         rid = i;
 437                         len = cfe->iospace[i].length;
 438                         r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid,
 439                             start, end, len, rman_make_alignment_flags(len));
 440                         if (r == NULL)
 441                                 goto not_this_one;
 442                         resource_list_add(rl, SYS_RES_IOPORT,
 443                             rid, rman_get_start(r), rman_get_end(r),
 444                             cfe->iospace[i].length, -1);
 445                         rle = resource_list_find(rl, SYS_RES_IOPORT, rid);
 446                         if (rle == NULL)
 447                                 panic("Cannot add resource rid %d IOPORT", rid);
 448                         rle->res = r;
 449                         spaces++;
 450                 }
 451                 for (i = 0; i < cfe->num_memspace; i++) {
 452                         start = cfe->memspace[i].hostaddr;
 453                         if (start)
 454                                 end = start + cfe->memspace[i].length - 1;
 455                         else
 456                                 end = ~0UL;
 457                         DEVPRINTF((bus, "Memory rid %d start %lx end %lx\n",
 458                             i, start, end));
 459                         rid = i;
 460                         len = cfe->memspace[i].length;
 461                         r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid,
 462                             start, end, len, rman_make_alignment_flags(len));
 463                         if (r == NULL)
 464                                 goto not_this_one;
 465                         resource_list_add(rl, SYS_RES_MEMORY,
 466                             rid, rman_get_start(r), rman_get_end(r),
 467                             cfe->memspace[i].length, -1);
 468                         rle = resource_list_find(rl, SYS_RES_MEMORY, rid);
 469                         if (rle == NULL)
 470                                 panic("Cannot add resource rid %d MEM", rid);
 471                         rle->res = r;
 472                         spaces++;
 473                 }
 474                 if (spaces == 0) {
 475                         DEVPRINTF((bus, "Neither memory nor I/O mapped\n"));
 476                         goto not_this_one;
 477                 }
 478                 if (cfe->irqmask) {
 479                         rid = 0;
 480                         r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid,
 481                             RF_SHAREABLE);
 482                         if (r == NULL)
 483                                 goto not_this_one;
 484                         resource_list_add(rl, SYS_RES_IRQ, rid,
 485                             rman_get_start(r), rman_get_end(r), 1, -1);
 486                         rle = resource_list_find(rl, SYS_RES_IRQ, rid);
 487                         if (rle == NULL)
 488                                 panic("Cannot add resource rid %d IRQ", rid);
 489                         rle->res = r;
 490                 }
 491                 /* If we get to here, we've allocated all we need */
 492                 pf->cfe = cfe;
 493                 break;
 494             not_this_one:;
 495                 DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
 496                     cfe->number));
 497 #if 0 /* YYY */
 498                 resource_list_purge(rl);
 499 #endif
 500         }
 501 }
 502
 503 /*
 504  * Free resources allocated by pccard_function_init(), May be called as long
 505  * as the function is disabled.
 506  *
 507  * NOTE: This function should be unnecessary.  pccard_function_init should
 508  * never keep resources initialized.
 509  */
 510 static void
 511 pccard_function_free(struct pccard_function *pf)
 512 {
 513         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 514         struct resource_list_entry *rle;
 515
 516         if (pf->pf_flags & PFF_ENABLED) {
 517                 kprintf("pccard_function_init: function is enabled");
 518                 return;
 519         }
 520
 521         SLIST_FOREACH(rle, &devi->resources, link) {
 522                 if (rle->res) {
 523                         if (rman_get_device(rle->res) != pf->sc->dev)
 524                                 device_printf(pf->sc->dev,
 525                                     "function_free: Resource still owned by "
 526                                     "child, oops. "
 527                                     "(type=%d, rid=%d, addr=%lx)\n",
 528                                     rle->type, rle->rid,
 529                                     rman_get_start(rle->res));
 530                         BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
 531                             pf->sc->dev, rle->type, rle->rid, rle->res);
 532                         rle->res = NULL;
 533                 }
 534         }
 535         resource_list_free(&devi->resources);
 536 }
 537
 538 static void
 539 pccard_mfc_adjust_iobase(struct pccard_function *pf, bus_addr_t addr,
 540     bus_addr_t offset, bus_size_t size)
 541 {
 542         bus_size_t iosize, tmp;
 543
 544         if (addr != 0) {
 545                 if (pf->pf_mfc_iomax == 0) {
 546                         pf->pf_mfc_iobase = addr + offset;
 547                         pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
 548                 } else {
 549                         /* this makes the assumption that nothing overlaps */
 550                         if (pf->pf_mfc_iobase > addr + offset)
 551                                 pf->pf_mfc_iobase = addr + offset;
 552                         if (pf->pf_mfc_iomax < addr + offset + size)
 553                                 pf->pf_mfc_iomax = addr + offset + size;
 554                 }
 555         }
 556
 557         tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
 558         /* round up to nearest (2^n)-1 */
 559         for (iosize = 1; iosize < tmp; iosize <<= 1)
 560                 ;
 561         iosize--;
 562
 563         DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n",
 564             (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1)));
 565         pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
 566             pf->pf_mfc_iobase & 0xff);
 567         pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
 568             (pf->pf_mfc_iobase >> 8) & 0xff);
 569         pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
 570         pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
 571         pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
 572 }
 573
 574 /* Enable a PCCARD function */
 575 static int
 576 pccard_function_enable(struct pccard_function *pf)
 577 {
 578         struct pccard_function *tmp;
 579         int reg;
 580         device_t dev = pf->sc->dev;
 581
 582         if (pf->cfe == NULL) {
 583                 DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
 584                 return (ENOMEM);
 585         }
 586
 587         /*
 588          * Increase the reference count on the socket, enabling power, if
 589          * necessary.
 590          */
 591         pf->sc->sc_enabled_count++;
 592
 593         if (pf->pf_flags & PFF_ENABLED) {
 594                 /*
 595                  * Don't do anything if we're already enabled.
 596                  */
 597                 return (0);
 598         }
 599
 600         /*
 601          * it's possible for different functions' CCRs to be in the same
 602          * underlying page.  Check for that.
 603          */
 604         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 605                 if ((tmp->pf_flags & PFF_ENABLED) &&
 606                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 607                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 608                     (tmp->ccr_base - tmp->pf_ccr_offset +
 609                     tmp->pf_ccr_realsize))) {
 610                         pf->pf_ccrt = tmp->pf_ccrt;
 611                         pf->pf_ccrh = tmp->pf_ccrh;
 612                         pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
 613
 614                         /*
 615                          * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
 616                          * tmp->ccr_base) + pf->ccr_base;
 617                          */
 618                         /* pf->pf_ccr_offset =
 619                             (tmp->pf_ccr_offset + pf->ccr_base) -
 620                             tmp->ccr_base; */
 621                         pf->pf_ccr_window = tmp->pf_ccr_window;
 622                         break;
 623                 }
 624         }
 625         if (tmp == NULL) {
 626                 pf->ccr_rid = 0;
 627                 pf->ccr_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
 628                     &pf->ccr_rid, 0, ~0, 1 << 10, RF_ACTIVE);
 629                 if (!pf->ccr_res)
 630                         goto bad;
 631                 DEVPRINTF((dev, "ccr_res == %lx-%lx, base=%x\n",
 632                     rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
 633                     pf->ccr_base));
 634                 CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
 635                     pf->ccr_rid, PCCARD_A_MEM_ATTR);
 636                 CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
 637                     pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
 638                 pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
 639                 pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
 640                 pf->pf_ccr_realsize = 1;
 641         }
 642
 643         reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
 644         reg |= PCCARD_CCR_OPTION_LEVIREQ;
 645         if (pccard_mfc(pf->sc)) {
 646                 reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
 647                         PCCARD_CCR_OPTION_ADDR_DECODE);
 648                 /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
 649         }
 650         pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
 651
 652         reg = 0;
 653         if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
 654                 reg |= PCCARD_CCR_STATUS_IOIS8;
 655         if (pf->cfe->flags & PCCARD_CFE_AUDIO)
 656                 reg |= PCCARD_CCR_STATUS_AUDIO;
 657         pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
 658
 659         pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
 660
 661         if (pccard_mfc(pf->sc))
 662                 pccard_mfc_adjust_iobase(pf, 0, 0, 0);
 663
 664 #ifdef PCCARDDEBUG
 665         if (pccard_debug) {
 666                 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 667                         device_printf(tmp->sc->dev,
 668                             "function %d CCR at %d offset %x: "
 669                             "%x %x %x %x, %x %x %x %x, %x\n",
 670                             tmp->number, tmp->pf_ccr_window,
 671                             tmp->pf_ccr_offset,
 672                             pccard_ccr_read(tmp, 0x00),
 673                             pccard_ccr_read(tmp, 0x02),
 674                             pccard_ccr_read(tmp, 0x04),
 675                             pccard_ccr_read(tmp, 0x06),
 676                             pccard_ccr_read(tmp, 0x0A),
 677                             pccard_ccr_read(tmp, 0x0C),
 678                             pccard_ccr_read(tmp, 0x0E),
 679                             pccard_ccr_read(tmp, 0x10),
 680                             pccard_ccr_read(tmp, 0x12));
 681                 }
 682         }
 683 #endif
 684         pf->pf_flags |= PFF_ENABLED;
 685         return (0);
 686
 687  bad:
 688         /*
 689          * Decrement the reference count, and power down the socket, if
 690          * necessary.
 691          */
 692         pf->sc->sc_enabled_count--;
 693         DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
 694
 695         return (1);
 696 }
 697
 698 /* Disable PCCARD function. */
 699 static void
 700 pccard_function_disable(struct pccard_function *pf)
 701 {
 702         struct pccard_function *tmp;
 703         device_t dev = pf->sc->dev;
 704
 705         if (pf->cfe == NULL)
 706                 panic("pccard_function_disable: function not initialized");
 707
 708         if ((pf->pf_flags & PFF_ENABLED) == 0) {
 709                 /*
 710                  * Don't do anything if we're already disabled.
 711                  */
 712                 return;
 713         }
 714
 715         if (pf->intr_handler != NULL) {
 716                 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 717                 struct resource_list_entry *rle =
 718                     resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
 719                 if (rle == NULL)
 720                         panic("Can't disable an interrupt with no IRQ res\n");
 721                 BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
 722                     pf->intr_handler_cookie);
 723         }
 724
 725         /*
 726          * it's possible for different functions' CCRs to be in the same
 727          * underlying page.  Check for that.  Note we mark us as disabled
 728          * first to avoid matching ourself.
 729          */
 730
 731         pf->pf_flags &= ~PFF_ENABLED;
 732         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 733                 if ((tmp->pf_flags & PFF_ENABLED) &&
 734                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 735                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 736                     (tmp->ccr_base - tmp->pf_ccr_offset +
 737                     tmp->pf_ccr_realsize)))
 738                         break;
 739         }
 740
 741         /* Not used by anyone else; unmap the CCR. */
 742         if (tmp == NULL) {
 743                 bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
 744                     pf->ccr_res);
 745                 pf->ccr_res = NULL;
 746         }
 747
 748         /*
 749          * Decrement the reference count, and power down the socket, if
 750          * necessary.
 751          */
 752         pf->sc->sc_enabled_count--;
 753 }
 754
 755 /*
 756  * simulate the old "probe" routine.  In the new world order, the driver
 757  * needs to grab devices while in the old they were assigned to the device by
 758  * the pccardd process.  These symbols are exported to the upper layers.
 759  */
 760 static int
 761 pccard_compat_do_probe(device_t bus, device_t dev)
 762 {
 763         return (CARD_COMPAT_MATCH(dev));
 764 }
 765
 766 static int
 767 pccard_compat_do_attach(device_t bus, device_t dev)
 768 {
 769         int err;
 770
 771         err = CARD_COMPAT_PROBE(dev);
 772         if (err <= 0)
 773                 err = CARD_COMPAT_ATTACH(dev);
 774         return (err);
 775 }
 776
 777 #define PCCARD_NPORT    2
 778 #define PCCARD_NMEM     5
 779 #define PCCARD_NIRQ     1
 780 #define PCCARD_NDRQ     0
 781
 782 static int
 783 pccard_add_children(device_t dev, int busno)
 784 {
 785         /* Call parent to scan for any current children */
 786         return (0);
 787 }
 788
 789 static int
 790 pccard_probe(device_t dev)
 791 {
 792         device_set_desc(dev, "16-bit PCCard bus");
 793         return (pccard_add_children(dev, device_get_unit(dev)));
 794 }
 795
 796 static int
 797 pccard_attach(device_t dev)
 798 {
 799         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 800
 801         sc->dev = dev;
 802         sc->sc_enabled_count = 0;
 803         return (bus_generic_attach(dev));
 804 }
 805
 806 static int
 807 pccard_detach(device_t dev)
 808 {
 809         pccard_detach_card(dev);
 810         return 0;
 811 }
 812
 813 static int
 814 pccard_suspend(device_t self)
 815 {
 816         pccard_detach_card(self);
 817         return (0);
 818 }
 819
 820 static
 821 int
 822 pccard_resume(device_t self)
 823 {
 824         return (0);
 825 }
 826
 827 static void
 828 pccard_print_resources(struct resource_list *rl, const char *name, int type,
 829     int count, const char *format)
 830 {
 831         struct resource_list_entry *rle;
 832         int printed;
 833         int i;
 834
 835         printed = 0;
 836         for (i = 0; i < count; i++) {
 837                 rle = resource_list_find(rl, type, i);
 838                 if (rle != NULL) {
 839                         if (printed == 0)
 840                                 kprintf(" %s ", name);
 841                         else if (printed > 0)
 842                                 kprintf(",");
 843                         printed++;
 844                         kprintf(format, rle->start);
 845                         if (rle->count > 1) {
 846                                 kprintf("-");
 847                                 kprintf(format, rle->start + rle->count - 1);
 848                         }
 849                 } else if (i > 3) {
 850                         /* check the first few regardless */
 851                         break;
 852                 }
 853         }
 854 }
 855
 856 static int
 857 pccard_print_child(device_t dev, device_t child)
 858 {
 859         struct pccard_ivar *devi = PCCARD_IVAR(child);
 860         struct resource_list *rl = &devi->resources;
 861         int retval = 0;
 862
 863         retval += bus_print_child_header(dev, child);
 864         retval += kprintf(" at");
 865
 866         if (devi != NULL) {
 867                 pccard_print_resources(rl, "port", SYS_RES_IOPORT,
 868                     PCCARD_NPORT, "%#lx");
 869                 pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
 870                     PCCARD_NMEM, "%#lx");
 871                 pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
 872                     "%ld");
 873                 pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
 874                     "%ld");
 875                 retval += kprintf(" function %d config %d", devi->pf->number,
 876                     devi->pf->cfe->number);
 877         }
 878
 879         retval += bus_print_child_footer(dev, child);
 880
 881         return (retval);
 882 }
 883
 884 static int
 885 pccard_set_resource(device_t dev, device_t child, int type, int rid,
 886     u_long start, u_long count, int cpuid)
 887 {
 888         struct pccard_ivar *devi = PCCARD_IVAR(child);
 889         struct resource_list *rl = &devi->resources;
 890
 891         if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
 892             && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
 893                 return (EINVAL);
 894         if (rid < 0)
 895                 return (EINVAL);
 896         if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
 897                 return (EINVAL);
 898         if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
 899                 return (EINVAL);
 900         if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
 901                 return (EINVAL);
 902         if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
 903                 return (EINVAL);
 904
 905         resource_list_add(rl, type, rid, start, start + count - 1, count,
 906             cpuid);
 907         if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
 908             type, &rid, start, start + count - 1, count, 0, -1))
 909                 return 0;
 910         else
 911                 return ENOMEM;
 912 }
 913
 914 static int
 915 pccard_get_resource(device_t dev, device_t child, int type, int rid,
 916     u_long *startp, u_long *countp)
 917 {
 918         struct pccard_ivar *devi = PCCARD_IVAR(child);
 919         struct resource_list *rl = &devi->resources;
 920         struct resource_list_entry *rle;
 921
 922         rle = resource_list_find(rl, type, rid);
 923         if (rle == NULL)
 924                 return (ENOENT);
 925
 926         if (startp != NULL)
 927                 *startp = rle->start;
 928         if (countp != NULL)
 929                 *countp = rle->count;
 930
 931         return (0);
 932 }
 933
 934 static void
 935 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
 936 {
 937         struct pccard_ivar *devi = PCCARD_IVAR(child);
 938         struct resource_list *rl = &devi->resources;
 939         resource_list_delete(rl, type, rid);
 940 }
 941
 942 static int
 943 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
 944     uint32_t flags)
 945 {
 946         return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
 947             rid, flags));
 948 }
 949
 950 static int
 951 pccard_set_memory_offset(device_t dev, device_t child, int rid,
 952     uint32_t offset, uint32_t *deltap)
 953
 954 {
 955         return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
 956             offset, deltap));
 957 }
 958
 959 static void
 960 pccard_probe_nomatch(device_t bus, device_t child)
 961 {
 962         struct pccard_ivar *devi = PCCARD_IVAR(child);
 963         struct pccard_function *pf = devi->pf;
 964         struct pccard_softc *sc = PCCARD_SOFTC(bus);
 965         int i;
 966
 967         device_printf(bus, "<unknown card>");
 968         kprintf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) "
 969             "at function %d\n", sc->card.manufacturer, sc->card.product,
 970             pf->function, pf->number);
 971         device_printf(bus, "   CIS info: ");
 972         for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++)
 973                 kprintf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]);
 974         kprintf("\n");
 975         return;
 976 }
 977
 978 static int
 979 pccard_child_location_str(device_t bus, device_t child, char *buf,
 980     size_t buflen)
 981 {
 982         struct pccard_ivar *devi = PCCARD_IVAR(child);
 983         struct pccard_function *pf = devi->pf;
 984
 985         ksnprintf(buf, buflen, "function=%d", pf->number);
 986         return (0);
 987 }
 988
 989 /* XXX Maybe this should be in subr_bus? */
 990 static void
 991 pccard_safe_quote(char *dst, const char *src, size_t len)
 992 {
 993         char *walker = dst, *ep = dst + len - 1;
 994
 995         if (len == 0)
 996                 return;
 997         while (walker < ep)
 998         {
 999                 if (*src == '"') {
1000                         if (ep - walker < 2)
1001                                 break;
1002                         *walker++ = '\\';
1003                 }
1004                 *walker++ = *src++;
1005         }
1006         *walker = '\0';
1007 }
1008
1009 static int
1010 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
1011     size_t buflen)
1012 {
1013         struct pccard_ivar *devi = PCCARD_IVAR(child);
1014         struct pccard_function *pf = devi->pf;
1015         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1016         char cis0[128], cis1[128];
1017
1018         pccard_safe_quote(cis0, sc->card.cis1_info[0], sizeof(cis0));
1019         pccard_safe_quote(cis1, sc->card.cis1_info[1], sizeof(cis1));
1020         ksnprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x "
1021             "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d",
1022             sc->card.manufacturer, sc->card.product, cis0, cis1, pf->function);
1023         return (0);
1024 }
1025
1026 static int
1027 pccard_read_ivar(device_t bus, device_t child, int which, u_char *result)
1028 {
1029         struct pccard_ivar *devi = PCCARD_IVAR(child);
1030         struct pccard_function *pf = devi->pf;
1031         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1032
1033         if (!pf)
1034                 panic("No pccard function pointer");
1035         switch (which) {
1036         default:
1037                 return (EINVAL);
1038         case PCCARD_IVAR_ETHADDR:
1039                 *(const uint8_t **)result = pf->pf_funce_lan_nid;
1040                 break;
1041         case PCCARD_IVAR_VENDOR:
1042                 *(uint32_t *)result = sc->card.manufacturer;
1043                 break;
1044         case PCCARD_IVAR_PRODUCT:
1045                 *(uint32_t *)result = sc->card.product;
1046                 break;
1047         case PCCARD_IVAR_PRODEXT:
1048                 *(uint16_t *)result = sc->card.prodext;
1049                 break;
1050         case PCCARD_IVAR_FUNCTION:
1051                 *(uint32_t *)result = pf->function;
1052                 break;
1053         case PCCARD_IVAR_FUNCTION_NUMBER:
1054                 *(uint32_t *)result = pf->number;
1055                 break;
1056         case PCCARD_IVAR_VENDOR_STR:
1057                 *(const char **)result = sc->card.cis1_info[0];
1058                 break;
1059         case PCCARD_IVAR_PRODUCT_STR:
1060                 *(const char **)result = sc->card.cis1_info[1];
1061                 break;
1062         case PCCARD_IVAR_CIS3_STR:
1063                 *(const char **)result = sc->card.cis1_info[2];
1064                 break;
1065         case PCCARD_IVAR_CIS4_STR:
1066                 *(const char **)result = sc->card.cis1_info[3];
1067                 break;
1068         }
1069         return (0);
1070 }
1071
1072 static void
1073 pccard_driver_added(device_t dev, driver_t *driver)
1074 {
1075         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1076         struct pccard_function *pf;
1077         device_t child;
1078
1079         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1080                 if (STAILQ_EMPTY(&pf->cfe_head))
1081                         continue;
1082                 child = pf->dev;
1083                 if (device_get_state(child) != DS_NOTPRESENT)
1084                         continue;
1085                 if (pccard_function_enable(pf) == 0 &&
1086                     device_probe_and_attach(child) == 0) {
1087                         DEVPRINTF((sc->dev, "function %d CCR at %d "
1088                             "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
1089                             pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
1090                             pccard_ccr_read(pf, 0x00),
1091                         pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
1092                         pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
1093                         pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
1094                         pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
1095                 } else {
1096                         if (pf->cfe != NULL)
1097                                 pccard_function_disable(pf);
1098                 }
1099         }
1100         return;
1101 }
1102
1103 static struct resource *
1104 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1105     u_long start, u_long end, u_long count, u_int flags, int cpuid)
1106 {
1107         struct pccard_ivar *dinfo;
1108         struct resource_list_entry *rle = 0;
1109         int passthrough = (device_get_parent(child) != dev);
1110         int isdefault = (start == 0 && end == ~0UL && count == 1);
1111         struct resource *r = NULL;
1112
1113         /* XXX I'm no longer sure this is right */
1114         if (passthrough) {
1115                 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1116                     type, rid, start, end, count, flags, cpuid));
1117         }
1118
1119         dinfo = device_get_ivars(child);
1120         rle = resource_list_find(&dinfo->resources, type, *rid);
1121
1122         if (rle == NULL && isdefault)
1123                 return (NULL);  /* no resource of that type/rid */
1124         if (rle == NULL || rle->res == NULL) {
1125                 /* XXX Need to adjust flags */
1126                 r = bus_alloc_resource(dev, type, rid, start, end,
1127                   count, flags);
1128                 if (r == NULL)
1129                     goto bad;
1130                 resource_list_add(&dinfo->resources, type, *rid,
1131                   rman_get_start(r), rman_get_end(r), count,
1132                   rman_get_cpuid(r));
1133                 rle = resource_list_find(&dinfo->resources, type, *rid);
1134                 if (!rle)
1135                     goto bad;
1136                 rle->res = r;
1137         }
1138         /*
1139          * If dev doesn't own the device, then we can't give this device
1140          * out.
1141          */
1142         if (rman_get_device(rle->res) != dev)
1143                 return (NULL);
1144         rman_set_device(rle->res, child);
1145         if (flags & RF_ACTIVE)
1146                 BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res);
1147         return (rle->res);
1148 bad:;
1149         device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1150         return (NULL);
1151 }
1152
1153 static int
1154 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1155     struct resource *r)
1156 {
1157         struct pccard_ivar *dinfo;
1158         int passthrough = (device_get_parent(child) != dev);
1159         struct resource_list_entry *rle = 0;
1160
1161         if (passthrough)
1162                 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1163                     type, rid, r);
1164
1165         dinfo = device_get_ivars(child);
1166
1167         rle = resource_list_find(&dinfo->resources, type, rid);
1168
1169         if (!rle) {
1170                 device_printf(dev, "Allocated resource not found, "
1171                     "%d %x %lx %lx\n",
1172                     type, rid, rman_get_start(r), rman_get_size(r));
1173                 return ENOENT;
1174         }
1175         if (!rle->res) {
1176                 device_printf(dev, "Allocated resource not recorded\n");
1177                 return ENOENT;
1178         }
1179         /*
1180          * Deactivate the resource (since it is being released), and
1181          * assign it to the bus.
1182          */
1183         BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res);
1184         rman_set_device(rle->res, dev);
1185         return (0);
1186 }
1187
1188 static void
1189 pccard_child_detached(device_t parent, device_t dev)
1190 {
1191         struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1192         struct pccard_function *pf = ivar->pf;
1193
1194         pccard_function_disable(pf);
1195 }
1196
1197 static void
1198 pccard_intr(void *arg)
1199 {
1200         struct pccard_function *pf = (struct pccard_function*) arg;
1201         int reg;
1202         int doisr = 1;
1203
1204         /*
1205          * MFC cards know if they interrupted, so we have to ack the
1206          * interrupt and call the ISR.  Non-MFC cards don't have these
1207          * bits, so they always get called.  Many non-MFC cards have
1208          * this bit set always upon read, but some do not.
1209          *
1210          * We always ack the interrupt, even if there's no ISR
1211          * for the card.  This is done on the theory that acking
1212          * the interrupt will pacify the card enough to keep an
1213          * interrupt storm from happening.  Of course this won't
1214          * help in the non-MFC case.
1215          *
1216          * This has no impact for MPSAFEness of the client drivers.
1217          * We register this with whatever flags the intr_handler
1218          * was registered with.  All these functions are MPSAFE.
1219          */
1220         if (pccard_mfc(pf->sc)) {
1221                 reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1222                 if (reg & PCCARD_CCR_STATUS_INTR)
1223                         pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1224                             reg & ~PCCARD_CCR_STATUS_INTR);
1225                 else
1226                         doisr = 0;
1227         }
1228         if (pf->intr_handler != NULL && doisr)
1229                 pf->intr_handler(pf->intr_handler_arg);
1230 }
1231
1232 static int
1233 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1234     int flags, driver_intr_t *intr, void *arg,
1235     void **cookiep, lwkt_serialize_t serializer)
1236 {
1237         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1238         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1239         struct pccard_function *pf = ivar->pf;
1240         int err;
1241
1242         if (pf->intr_handler != NULL)
1243                 panic("Only one interrupt handler per function allowed");
1244         err = bus_generic_setup_intr(dev, child, irq, flags, pccard_intr,
1245                                      pf, cookiep, serializer);
1246         if (err != 0)
1247                 return (err);
1248         pf->intr_handler = intr;
1249         pf->intr_handler_arg = arg;
1250         pf->intr_handler_cookie = *cookiep;
1251         if (pccard_mfc(sc)) {
1252                 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1253                     pccard_ccr_read(pf, PCCARD_CCR_OPTION) |
1254                     PCCARD_CCR_OPTION_IREQ_ENABLE);
1255         }
1256         return (0);
1257 }
1258
1259 static int
1260 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1261     void *cookie)
1262 {
1263         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1264         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1265         struct pccard_function *pf = ivar->pf;
1266         int ret;
1267
1268         if (pccard_mfc(sc)) {
1269                 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1270                     pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
1271                     ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1272         }
1273         ret = bus_generic_teardown_intr(dev, child, r, cookie);
1274         if (ret == 0) {
1275                 pf->intr_handler = NULL;
1276                 pf->intr_handler_arg = NULL;
1277                 pf->intr_handler_cookie = NULL;
1278         }
1279
1280         return (ret);
1281 }
1282
1283 static int
1284 pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
1285     struct resource *r)
1286 {
1287         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1288         struct pccard_function *pf = ivar->pf;
1289
1290         switch(type) {
1291         case SYS_RES_IOPORT:
1292                 /*
1293                  * We need to adjust IOBASE[01] and IOSIZE if we're an MFC
1294                  * card.
1295                  */
1296                 if (pccard_mfc(pf->sc))
1297                         pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1298                             rman_get_size(r));
1299                 break;
1300         default:
1301                 break;
1302         }
1303         return (bus_generic_activate_resource(brdev, child, type, rid, r));
1304 }
1305
1306 static int
1307 pccard_deactivate_resource(device_t brdev, device_t child, int type,
1308     int rid, struct resource *r)
1309 {
1310         /* XXX undo pccard_activate_resource? XXX */
1311         return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
1312 }
1313
1314 static device_method_t pccard_methods[] = {
1315         /* Device interface */
1316         DEVMETHOD(device_probe,         pccard_probe),
1317         DEVMETHOD(device_attach,        pccard_attach),
1318         DEVMETHOD(device_detach,        pccard_detach),
1319         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
1320         DEVMETHOD(device_suspend,       pccard_suspend),
1321         DEVMETHOD(device_resume,        pccard_resume),
1322
1323         /* Bus interface */
1324         DEVMETHOD(bus_print_child,      pccard_print_child),
1325         DEVMETHOD(bus_driver_added,     pccard_driver_added),
1326         DEVMETHOD(bus_child_detached,   pccard_child_detached),
1327         DEVMETHOD(bus_alloc_resource,   pccard_alloc_resource),
1328         DEVMETHOD(bus_release_resource, pccard_release_resource),
1329         DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1330         DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
1331         DEVMETHOD(bus_setup_intr,       pccard_setup_intr),
1332         DEVMETHOD(bus_teardown_intr,    pccard_teardown_intr),
1333         DEVMETHOD(bus_set_resource,     pccard_set_resource),
1334         DEVMETHOD(bus_get_resource,     pccard_get_resource),
1335         DEVMETHOD(bus_delete_resource,  pccard_delete_resource),
1336         DEVMETHOD(bus_probe_nomatch,    pccard_probe_nomatch),
1337         DEVMETHOD(bus_read_ivar,        pccard_read_ivar),
1338         DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1339         DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1340
1341         /* Card Interface */
1342         DEVMETHOD(card_set_res_flags,   pccard_set_res_flags),
1343         DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1344         DEVMETHOD(card_attach_card,     pccard_attach_card),
1345         DEVMETHOD(card_detach_card,     pccard_detach_card),
1346         DEVMETHOD(card_compat_do_probe, pccard_compat_do_probe),
1347         DEVMETHOD(card_compat_do_attach, pccard_compat_do_attach),
1348         DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1349         DEVMETHOD(card_cis_scan,        pccard_scan_cis),
1350
1351         { 0, 0 }
1352 };
1353
1354 static driver_t pccard_driver = {
1355         "pccard",
1356         pccard_methods,
1357         sizeof(struct pccard_softc)
1358 };
1359
1360 devclass_t      pccard_devclass;
1361
1362 /* Maybe we need to have a slot device? */
1363 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, NULL, NULL);
1364 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, NULL, NULL);
1365 MODULE_VERSION(pccard, 1);