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                     const char *desc);
 125 static int      pccard_teardown_intr(device_t dev, device_t child,
 126                     struct resource *r, void *cookie);
 127
 128 static const struct pccard_product *
 129 pccard_do_product_lookup(device_t bus, device_t dev,
 130                          const struct pccard_product *tab, size_t ent_size,
 131                          pccard_product_match_fn matchfn);
 132
 133
 134 static int
 135 pccard_ccr_read(struct pccard_function *pf, int ccr)
 136 {
 137         return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
 138             pf->pf_ccr_offset + ccr));
 139 }
 140
 141 static void
 142 pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
 143 {
 144         if ((pf->ccr_mask) & (1 << (ccr / 2))) {
 145                 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
 146                     pf->pf_ccr_offset + ccr, val);
 147         }
 148 }
 149
 150 static int
 151 pccard_set_default_descr(device_t dev)
 152 {
 153         const char *vendorstr, *prodstr;
 154         uint32_t vendor, prod;
 155         char *str;
 156
 157         vendorstr = pccard_get_vendor_str(dev);
 158         prodstr = pccard_get_product_str(dev);
 159         if (vendorstr != NULL && prodstr != NULL) {
 160                 str = kmalloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF,
 161                     M_WAITOK);
 162                 ksprintf(str, "%s %s", vendorstr, prodstr);
 163                 device_set_desc_copy(dev, str);
 164                 kfree(str, M_DEVBUF);
 165         } else {
 166                 vendor = pccard_get_vendor(dev);
 167                 prod = pccard_get_product(dev);
 168
 169                 str = kmalloc(100, M_DEVBUF, M_WAITOK);
 170                 ksnprintf(str, 100, "vendor=0x%x product=0x%x", vendor, prod);
 171                 device_set_desc_copy(dev, str);
 172                 kfree(str, M_DEVBUF);
 173         }
 174         return (0);
 175 }
 176
 177 static int
 178 pccard_attach_card(device_t dev)
 179 {
 180         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 181         struct pccard_function *pf;
 182         struct pccard_ivar *ivar;
 183         device_t child;
 184         int i;
 185
 186         /*
 187          * this is here so that when socket_enable calls gettype, trt happens
 188          */
 189         STAILQ_INIT(&sc->card.pf_head);
 190
 191         DEVPRINTF((dev, "chip_socket_enable\n"));
 192         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 193
 194         DEVPRINTF((dev, "read_cis\n"));
 195         pccard_read_cis(sc);
 196
 197         DEVPRINTF((dev, "check_cis_quirks\n"));
 198         pccard_check_cis_quirks(dev);
 199
 200         /*
 201          * bail now if the card has no functions, or if there was an error in
 202          * the cis.
 203          */
 204
 205         if (sc->card.error) {
 206                 device_printf(dev, "CARD ERROR!\n");
 207                 return (1);
 208         }
 209         if (STAILQ_EMPTY(&sc->card.pf_head)) {
 210                 device_printf(dev, "Card has no functions!\n");
 211                 return (1);
 212         }
 213
 214         if (bootverbose || pccard_debug)
 215                 pccard_print_cis(dev);
 216
 217         DEVPRINTF((dev, "functions scanning\n"));
 218         i = -1;
 219         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 220                 i++;
 221                 if (STAILQ_EMPTY(&pf->cfe_head)) {
 222                         device_printf(dev,
 223                             "Function %d has no config entries.!\n", i);
 224                         continue;
 225                 }
 226                 pf->sc = sc;
 227                 pf->cfe = NULL;
 228                 pf->dev = NULL;
 229         }
 230         DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
 231             pccard_mfc(sc)));
 232
 233         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 234                 if (STAILQ_EMPTY(&pf->cfe_head))
 235                         continue;
 236                 /*
 237                  * In NetBSD, the drivers are responsible for activating
 238                  * each function of a card.  I think that in FreeBSD we
 239                  * want to activate them enough for the usual bus_*_resource
 240                  * routines will do the right thing.  This many mean a
 241                  * departure from the current NetBSD model.
 242                  *
 243                  * This seems to work well in practice for most cards.
 244                  * However, there are two cases that are problematic.
 245                  * If a driver wishes to pick and chose which config
 246                  * entry to use, then this method falls down.  These
 247                  * are usually older cards.  In addition, there are
 248                  * some cards that have multiple hardware units on the
 249                  * cards, but presents only one CIS chain.  These cards
 250                  * are combination cards, but only one of these units
 251                  * can be on at a time.
 252                  */
 253                 ivar = kmalloc(sizeof(struct pccard_ivar), M_DEVBUF,
 254                     M_WAITOK | M_ZERO);
 255                 resource_list_init(&ivar->resources);
 256                 child = device_add_child(dev, NULL, -1);
 257                 device_set_ivars(child, ivar);
 258                 ivar->pf = pf;
 259                 pf->dev = child;
 260                 /*
 261                  * XXX We might want to move the next three lines into
 262                  * XXX the pccard interface layer.  For the moment, this
 263                  * XXX is OK, but some drivers want to pick the config
 264                  * XXX entry to use as well as some address tweaks (mostly
 265                  * XXX due to bugs in decode logic that makes some
 266                  * XXX addresses illegal or broken).
 267                  */
 268                 pccard_function_init(pf);
 269                 if (sc->sc_enabled_count == 0)
 270                         POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
 271                 if (pccard_function_enable(pf) == 0 &&
 272                     pccard_set_default_descr(child) == 0 &&
 273                     device_probe_and_attach(child) == 0) {
 274                         DEVPRINTF((sc->dev, "function %d CCR at %d "
 275                             "offset %x mask %x: "
 276                             "%x %x %x %x, %x %x %x %x, %x\n",
 277                             pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
 278                             pf->ccr_mask, pccard_ccr_read(pf, 0x00),
 279                         pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
 280                         pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
 281                         pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
 282                         pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
 283                 } else {
 284                         if (pf->cfe != NULL)
 285                                 pccard_function_disable(pf);
 286                 }
 287         }
 288         return (0);
 289 }
 290
 291 static int
 292 pccard_detach_card(device_t dev)
 293 {
 294         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 295         struct pccard_function *pf;
 296         struct pccard_config_entry *cfe;
 297         int state;
 298
 299         /*
 300          * We are running on either the PCCARD socket's event thread
 301          * or in user context detaching a device by user request.
 302          */
 303         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
 304                 if (pf->dev == NULL)
 305                         continue;
 306                 state = device_get_state(pf->dev);
 307                 if (state == DS_ATTACHED || state == DS_BUSY)
 308                         device_detach(pf->dev);
 309                 if (pf->cfe != NULL)
 310                         pccard_function_disable(pf);
 311                 pccard_function_free(pf);
 312                 device_delete_child(dev, pf->dev);
 313         }
 314         if (sc->sc_enabled_count == 0)
 315                 POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
 316
 317         while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
 318                 while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
 319                         STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
 320                         kfree(cfe, M_DEVBUF);
 321                 }
 322                 STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
 323                 kfree(pf, M_DEVBUF);
 324         }
 325         return (0);
 326 }
 327
 328 static const struct pccard_product *
 329 pccard_do_product_lookup(device_t bus, device_t dev,
 330     const struct pccard_product *tab, size_t ent_size,
 331     pccard_product_match_fn matchfn)
 332 {
 333         const struct pccard_product *ent;
 334         int matches;
 335         uint32_t vendor;
 336         uint32_t prod;
 337         const char *vendorstr;
 338         const char *prodstr;
 339         const char *cis3str;
 340         const char *cis4str;
 341
 342 #ifdef DIAGNOSTIC
 343         if (sizeof *ent > ent_size)
 344                 panic("pccard_product_lookup: bogus ent_size %jd",
 345                     (intmax_t) ent_size);
 346 #endif
 347         vendor = pccard_get_vendor(dev);
 348         prod = pccard_get_product(dev);
 349         vendorstr = pccard_get_vendor_str(dev);
 350         prodstr = pccard_get_product_str(dev);
 351         cis3str = pccard_get_cis3_str(dev);
 352         cis4str = pccard_get_cis4_str(dev);
 353
 354         for (ent = tab; ent->pp_vendor != 0; ent =
 355             (const struct pccard_product *) ((const char *) ent + ent_size)) {
 356                 matches = 1;
 357                 if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
 358                     ent->pp_product == PCCARD_PRODUCT_ANY &&
 359                     ent->pp_cis[0] == NULL &&
 360                     ent->pp_cis[1] == NULL) {
 361                         if (ent->pp_name)
 362                                 device_printf(dev,
 363                                     "Total wildcard entry ignored for %s\n",
 364                                     ent->pp_name);
 365                         continue;
 366                 }
 367                 if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
 368                     vendor != ent->pp_vendor)
 369                         matches = 0;
 370                 if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
 371                     prod != ent->pp_product)
 372                         matches = 0;
 373                 if (matches && ent->pp_cis[0] &&
 374                     (vendorstr == NULL ||
 375                     strcmp(ent->pp_cis[0], vendorstr) != 0))
 376                         matches = 0;
 377                 if (matches && ent->pp_cis[1] &&
 378                     (prodstr == NULL ||
 379                     strcmp(ent->pp_cis[1], prodstr) != 0))
 380                         matches = 0;
 381                 if (matches && ent->pp_cis[2] &&
 382                     (cis3str == NULL ||
 383                     strcmp(ent->pp_cis[2], cis3str) != 0))
 384                         matches = 0;
 385                 if (matches && ent->pp_cis[3] &&
 386                     (cis4str == NULL ||
 387                     strcmp(ent->pp_cis[3], cis4str) != 0))
 388                         matches = 0;
 389                 if (matchfn != NULL)
 390                         matches = (*matchfn)(dev, ent, matches);
 391                 if (matches)
 392                         return (ent);
 393         }
 394         return (NULL);
 395 }
 396
 397 /*
 398  * Initialize a PCCARD function.  May be called as long as the function is
 399  * disabled.
 400  *
 401  * Note: pccard_function_init should not keep resources allocated.  It should
 402  * only set them up ala isa pnp, set the values in the rl lists, and return.
 403  * Any resource held after pccard_function_init is called is a bug.  However,
 404  * the bus routines to get the resources also assume that pccard_function_init
 405  * does this, so they need to be fixed too.
 406  */
 407 static void
 408 pccard_function_init(struct pccard_function *pf)
 409 {
 410         struct pccard_config_entry *cfe;
 411         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 412         struct resource_list *rl = &devi->resources;
 413         struct resource_list_entry *rle;
 414         struct resource *r = NULL;
 415         device_t bus;
 416         u_long start, end, len;
 417         int i, rid, spaces;
 418
 419         if (pf->pf_flags & PFF_ENABLED) {
 420                 kprintf("pccard_function_init: function is enabled");
 421                 return;
 422         }
 423         bus = device_get_parent(pf->dev);
 424         /* Remember which configuration entry we are using. */
 425         STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
 426                 if (cfe->iftype != PCCARD_IFTYPE_IO)
 427                         continue;
 428                 spaces = 0;
 429                 for (i = 0; i < cfe->num_iospace; i++) {
 430                         start = cfe->iospace[i].start;
 431                         if (start)
 432                                 end = start + cfe->iospace[i].length - 1;
 433                         else
 434                                 end = ~0UL;
 435                         DEVPRINTF((bus, "I/O rid %d start %lx end %lx\n",
 436                             i, start, end));
 437                         rid = i;
 438                         len = cfe->iospace[i].length;
 439                         r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid,
 440                             start, end, len, rman_make_alignment_flags(len));
 441                         if (r == NULL)
 442                                 goto not_this_one;
 443                         resource_list_add(rl, SYS_RES_IOPORT,
 444                             rid, rman_get_start(r), rman_get_end(r),
 445                             cfe->iospace[i].length, -1);
 446                         rle = resource_list_find(rl, SYS_RES_IOPORT, rid);
 447                         if (rle == NULL)
 448                                 panic("Cannot add resource rid %d IOPORT", rid);
 449                         rle->res = r;
 450                         spaces++;
 451                 }
 452                 for (i = 0; i < cfe->num_memspace; i++) {
 453                         start = cfe->memspace[i].hostaddr;
 454                         if (start)
 455                                 end = start + cfe->memspace[i].length - 1;
 456                         else
 457                                 end = ~0UL;
 458                         DEVPRINTF((bus, "Memory rid %d start %lx end %lx\n",
 459                             i, start, end));
 460                         rid = i;
 461                         len = cfe->memspace[i].length;
 462                         r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid,
 463                             start, end, len, rman_make_alignment_flags(len));
 464                         if (r == NULL)
 465                                 goto not_this_one;
 466                         resource_list_add(rl, SYS_RES_MEMORY,
 467                             rid, rman_get_start(r), rman_get_end(r),
 468                             cfe->memspace[i].length, -1);
 469                         rle = resource_list_find(rl, SYS_RES_MEMORY, rid);
 470                         if (rle == NULL)
 471                                 panic("Cannot add resource rid %d MEM", rid);
 472                         rle->res = r;
 473                         spaces++;
 474                 }
 475                 if (spaces == 0) {
 476                         DEVPRINTF((bus, "Neither memory nor I/O mapped\n"));
 477                         goto not_this_one;
 478                 }
 479                 if (cfe->irqmask) {
 480                         rid = 0;
 481                         r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid,
 482                             RF_SHAREABLE);
 483                         if (r == NULL)
 484                                 goto not_this_one;
 485                         resource_list_add(rl, SYS_RES_IRQ, rid,
 486                             rman_get_start(r), rman_get_end(r), 1,
 487                             rman_get_cpuid(r));
 488                         rle = resource_list_find(rl, SYS_RES_IRQ, rid);
 489                         if (rle == NULL)
 490                                 panic("Cannot add resource rid %d IRQ", rid);
 491                         rle->res = r;
 492                 }
 493                 /* If we get to here, we've allocated all we need */
 494                 pf->cfe = cfe;
 495                 break;
 496             not_this_one:;
 497                 DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
 498                     cfe->number));
 499 #if 0 /* YYY */
 500                 resource_list_purge(rl);
 501 #endif
 502         }
 503 }
 504
 505 /*
 506  * Free resources allocated by pccard_function_init(), May be called as long
 507  * as the function is disabled.
 508  *
 509  * NOTE: This function should be unnecessary.  pccard_function_init should
 510  * never keep resources initialized.
 511  */
 512 static void
 513 pccard_function_free(struct pccard_function *pf)
 514 {
 515         struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 516         struct resource_list_entry *rle;
 517
 518         if (pf->pf_flags & PFF_ENABLED) {
 519                 kprintf("pccard_function_init: function is enabled");
 520                 return;
 521         }
 522
 523         SLIST_FOREACH(rle, &devi->resources, link) {
 524                 if (rle->res) {
 525                         if (rman_get_device(rle->res) != pf->sc->dev)
 526                                 device_printf(pf->sc->dev,
 527                                     "function_free: Resource still owned by "
 528                                     "child, oops. "
 529                                     "(type=%d, rid=%d, addr=%lx)\n",
 530                                     rle->type, rle->rid,
 531                                     rman_get_start(rle->res));
 532                         BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
 533                             pf->sc->dev, rle->type, rle->rid, rle->res);
 534                         rle->res = NULL;
 535                 }
 536         }
 537         resource_list_free(&devi->resources);
 538 }
 539
 540 static void
 541 pccard_mfc_adjust_iobase(struct pccard_function *pf, bus_addr_t addr,
 542     bus_addr_t offset, bus_size_t size)
 543 {
 544         bus_size_t iosize, tmp;
 545
 546         if (addr != 0) {
 547                 if (pf->pf_mfc_iomax == 0) {
 548                         pf->pf_mfc_iobase = addr + offset;
 549                         pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
 550                 } else {
 551                         /* this makes the assumption that nothing overlaps */
 552                         if (pf->pf_mfc_iobase > addr + offset)
 553                                 pf->pf_mfc_iobase = addr + offset;
 554                         if (pf->pf_mfc_iomax < addr + offset + size)
 555                                 pf->pf_mfc_iomax = addr + offset + size;
 556                 }
 557         }
 558
 559         tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
 560         /* round up to nearest (2^n)-1 */
 561         for (iosize = 1; iosize < tmp; iosize <<= 1)
 562                 ;
 563         iosize--;
 564
 565         DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n",
 566             (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1)));
 567         pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
 568             pf->pf_mfc_iobase & 0xff);
 569         pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
 570             (pf->pf_mfc_iobase >> 8) & 0xff);
 571         pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
 572         pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
 573         pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
 574 }
 575
 576 /* Enable a PCCARD function */
 577 static int
 578 pccard_function_enable(struct pccard_function *pf)
 579 {
 580         struct pccard_function *tmp;
 581         int reg;
 582         device_t dev = pf->sc->dev;
 583
 584         if (pf->cfe == NULL) {
 585                 DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
 586                 return (ENOMEM);
 587         }
 588
 589         /*
 590          * Increase the reference count on the socket, enabling power, if
 591          * necessary.
 592          */
 593         pf->sc->sc_enabled_count++;
 594
 595         if (pf->pf_flags & PFF_ENABLED) {
 596                 /*
 597                  * Don't do anything if we're already enabled.
 598                  */
 599                 return (0);
 600         }
 601
 602         /*
 603          * it's possible for different functions' CCRs to be in the same
 604          * underlying page.  Check for that.
 605          */
 606         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 607                 if ((tmp->pf_flags & PFF_ENABLED) &&
 608                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 609                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 610                     (tmp->ccr_base - tmp->pf_ccr_offset +
 611                     tmp->pf_ccr_realsize))) {
 612                         pf->pf_ccrt = tmp->pf_ccrt;
 613                         pf->pf_ccrh = tmp->pf_ccrh;
 614                         pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
 615
 616                         /*
 617                          * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
 618                          * tmp->ccr_base) + pf->ccr_base;
 619                          */
 620                         /* pf->pf_ccr_offset =
 621                             (tmp->pf_ccr_offset + pf->ccr_base) -
 622                             tmp->ccr_base; */
 623                         pf->pf_ccr_window = tmp->pf_ccr_window;
 624                         break;
 625                 }
 626         }
 627         if (tmp == NULL) {
 628                 pf->ccr_rid = 0;
 629                 pf->ccr_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
 630                     &pf->ccr_rid, 0, ~0, 1 << 10, RF_ACTIVE);
 631                 if (!pf->ccr_res)
 632                         goto bad;
 633                 DEVPRINTF((dev, "ccr_res == %lx-%lx, base=%x\n",
 634                     rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
 635                     pf->ccr_base));
 636                 CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
 637                     pf->ccr_rid, PCCARD_A_MEM_ATTR);
 638                 CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
 639                     pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
 640                 pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
 641                 pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
 642                 pf->pf_ccr_realsize = 1;
 643         }
 644
 645         reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
 646         reg |= PCCARD_CCR_OPTION_LEVIREQ;
 647         if (pccard_mfc(pf->sc)) {
 648                 reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
 649                         PCCARD_CCR_OPTION_ADDR_DECODE);
 650                 /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
 651         }
 652         pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
 653
 654         reg = 0;
 655         if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
 656                 reg |= PCCARD_CCR_STATUS_IOIS8;
 657         if (pf->cfe->flags & PCCARD_CFE_AUDIO)
 658                 reg |= PCCARD_CCR_STATUS_AUDIO;
 659         pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
 660
 661         pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
 662
 663         if (pccard_mfc(pf->sc))
 664                 pccard_mfc_adjust_iobase(pf, 0, 0, 0);
 665
 666 #ifdef PCCARDDEBUG
 667         if (pccard_debug) {
 668                 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 669                         device_printf(tmp->sc->dev,
 670                             "function %d CCR at %d offset %x: "
 671                             "%x %x %x %x, %x %x %x %x, %x\n",
 672                             tmp->number, tmp->pf_ccr_window,
 673                             tmp->pf_ccr_offset,
 674                             pccard_ccr_read(tmp, 0x00),
 675                             pccard_ccr_read(tmp, 0x02),
 676                             pccard_ccr_read(tmp, 0x04),
 677                             pccard_ccr_read(tmp, 0x06),
 678                             pccard_ccr_read(tmp, 0x0A),
 679                             pccard_ccr_read(tmp, 0x0C),
 680                             pccard_ccr_read(tmp, 0x0E),
 681                             pccard_ccr_read(tmp, 0x10),
 682                             pccard_ccr_read(tmp, 0x12));
 683                 }
 684         }
 685 #endif
 686         pf->pf_flags |= PFF_ENABLED;
 687         return (0);
 688
 689  bad:
 690         /*
 691          * Decrement the reference count, and power down the socket, if
 692          * necessary.
 693          */
 694         pf->sc->sc_enabled_count--;
 695         DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
 696
 697         return (1);
 698 }
 699
 700 /* Disable PCCARD function. */
 701 static void
 702 pccard_function_disable(struct pccard_function *pf)
 703 {
 704         struct pccard_function *tmp;
 705         device_t dev = pf->sc->dev;
 706
 707         if (pf->cfe == NULL)
 708                 panic("pccard_function_disable: function not initialized");
 709
 710         if ((pf->pf_flags & PFF_ENABLED) == 0) {
 711                 /*
 712                  * Don't do anything if we're already disabled.
 713                  */
 714                 return;
 715         }
 716
 717         if (pf->intr_handler != NULL) {
 718                 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
 719                 struct resource_list_entry *rle =
 720                     resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
 721                 if (rle == NULL)
 722                         panic("Can't disable an interrupt with no IRQ res");
 723                 BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
 724                     pf->intr_handler_cookie);
 725         }
 726
 727         /*
 728          * it's possible for different functions' CCRs to be in the same
 729          * underlying page.  Check for that.  Note we mark us as disabled
 730          * first to avoid matching ourself.
 731          */
 732
 733         pf->pf_flags &= ~PFF_ENABLED;
 734         STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
 735                 if ((tmp->pf_flags & PFF_ENABLED) &&
 736                     (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
 737                     ((pf->ccr_base + PCCARD_CCR_SIZE) <=
 738                     (tmp->ccr_base - tmp->pf_ccr_offset +
 739                     tmp->pf_ccr_realsize)))
 740                         break;
 741         }
 742
 743         /* Not used by anyone else; unmap the CCR. */
 744         if (tmp == NULL) {
 745                 bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
 746                     pf->ccr_res);
 747                 pf->ccr_res = NULL;
 748         }
 749
 750         /*
 751          * Decrement the reference count, and power down the socket, if
 752          * necessary.
 753          */
 754         pf->sc->sc_enabled_count--;
 755 }
 756
 757 /*
 758  * simulate the old "probe" routine.  In the new world order, the driver
 759  * needs to grab devices while in the old they were assigned to the device by
 760  * the pccardd process.  These symbols are exported to the upper layers.
 761  */
 762 static int
 763 pccard_compat_do_probe(device_t bus, device_t dev)
 764 {
 765         return (CARD_COMPAT_MATCH(dev));
 766 }
 767
 768 static int
 769 pccard_compat_do_attach(device_t bus, device_t dev)
 770 {
 771         int err;
 772
 773         err = CARD_COMPAT_PROBE(dev);
 774         if (err <= 0)
 775                 err = CARD_COMPAT_ATTACH(dev);
 776         return (err);
 777 }
 778
 779 #define PCCARD_NPORT    2
 780 #define PCCARD_NMEM     5
 781 #define PCCARD_NIRQ     1
 782 #define PCCARD_NDRQ     0
 783
 784 static int
 785 pccard_add_children(device_t dev, int busno)
 786 {
 787         /* Call parent to scan for any current children */
 788         return (0);
 789 }
 790
 791 static int
 792 pccard_probe(device_t dev)
 793 {
 794         device_set_desc(dev, "16-bit PCCard bus");
 795         return (pccard_add_children(dev, device_get_unit(dev)));
 796 }
 797
 798 static int
 799 pccard_attach(device_t dev)
 800 {
 801         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 802
 803         sc->dev = dev;
 804         sc->sc_enabled_count = 0;
 805         return (bus_generic_attach(dev));
 806 }
 807
 808 static int
 809 pccard_detach(device_t dev)
 810 {
 811         pccard_detach_card(dev);
 812         return 0;
 813 }
 814
 815 static int
 816 pccard_suspend(device_t self)
 817 {
 818         pccard_detach_card(self);
 819         return (0);
 820 }
 821
 822 static
 823 int
 824 pccard_resume(device_t self)
 825 {
 826         return (0);
 827 }
 828
 829 static void
 830 pccard_print_resources(struct resource_list *rl, const char *name, int type,
 831     int count, const char *format)
 832 {
 833         struct resource_list_entry *rle;
 834         int printed;
 835         int i;
 836
 837         printed = 0;
 838         for (i = 0; i < count; i++) {
 839                 rle = resource_list_find(rl, type, i);
 840                 if (rle != NULL) {
 841                         if (printed == 0)
 842                                 kprintf(" %s ", name);
 843                         else if (printed > 0)
 844                                 kprintf(",");
 845                         printed++;
 846                         kprintf(format, rle->start);
 847                         if (rle->count > 1) {
 848                                 kprintf("-");
 849                                 kprintf(format, rle->start + rle->count - 1);
 850                         }
 851                 } else if (i > 3) {
 852                         /* check the first few regardless */
 853                         break;
 854                 }
 855         }
 856 }
 857
 858 static int
 859 pccard_print_child(device_t dev, device_t child)
 860 {
 861         struct pccard_ivar *devi = PCCARD_IVAR(child);
 862         struct resource_list *rl = &devi->resources;
 863         int retval = 0;
 864
 865         retval += bus_print_child_header(dev, child);
 866         retval += kprintf(" at");
 867
 868         if (devi != NULL) {
 869                 pccard_print_resources(rl, "port", SYS_RES_IOPORT,
 870                     PCCARD_NPORT, "%#lx");
 871                 pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
 872                     PCCARD_NMEM, "%#lx");
 873                 pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
 874                     "%ld");
 875                 pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
 876                     "%ld");
 877                 retval += kprintf(" function %d config %d", devi->pf->number,
 878                     devi->pf->cfe->number);
 879         }
 880
 881         retval += bus_print_child_footer(dev, child);
 882
 883         return (retval);
 884 }
 885
 886 static int
 887 pccard_set_resource(device_t dev, device_t child, int type, int rid,
 888     u_long start, u_long count, int cpuid)
 889 {
 890         struct pccard_ivar *devi = PCCARD_IVAR(child);
 891         struct resource_list *rl = &devi->resources;
 892
 893         if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
 894             && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
 895                 return (EINVAL);
 896         if (rid < 0)
 897                 return (EINVAL);
 898         if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
 899                 return (EINVAL);
 900         if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
 901                 return (EINVAL);
 902         if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
 903                 return (EINVAL);
 904         if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
 905                 return (EINVAL);
 906
 907         resource_list_add(rl, type, rid, start, start + count - 1, count,
 908             cpuid);
 909         if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
 910             type, &rid, start, start + count - 1, count, 0, -1))
 911                 return 0;
 912         else
 913                 return ENOMEM;
 914 }
 915
 916 static int
 917 pccard_get_resource(device_t dev, device_t child, int type, int rid,
 918     u_long *startp, u_long *countp)
 919 {
 920         struct pccard_ivar *devi = PCCARD_IVAR(child);
 921         struct resource_list *rl = &devi->resources;
 922         struct resource_list_entry *rle;
 923
 924         rle = resource_list_find(rl, type, rid);
 925         if (rle == NULL)
 926                 return (ENOENT);
 927
 928         if (startp != NULL)
 929                 *startp = rle->start;
 930         if (countp != NULL)
 931                 *countp = rle->count;
 932
 933         return (0);
 934 }
 935
 936 static void
 937 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
 938 {
 939         struct pccard_ivar *devi = PCCARD_IVAR(child);
 940         struct resource_list *rl = &devi->resources;
 941         resource_list_delete(rl, type, rid);
 942 }
 943
 944 static int
 945 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
 946     uint32_t flags)
 947 {
 948         return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
 949             rid, flags));
 950 }
 951
 952 static int
 953 pccard_set_memory_offset(device_t dev, device_t child, int rid,
 954     uint32_t offset, uint32_t *deltap)
 955
 956 {
 957         return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
 958             offset, deltap));
 959 }
 960
 961 static void
 962 pccard_probe_nomatch(device_t bus, device_t child)
 963 {
 964         struct pccard_ivar *devi = PCCARD_IVAR(child);
 965         struct pccard_function *pf = devi->pf;
 966         struct pccard_softc *sc = PCCARD_SOFTC(bus);
 967         int i;
 968
 969         device_printf(bus, "<unknown card>");
 970         kprintf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) "
 971             "at function %d\n", sc->card.manufacturer, sc->card.product,
 972             pf->function, pf->number);
 973         device_printf(bus, "   CIS info: ");
 974         for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++)
 975                 kprintf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]);
 976         kprintf("\n");
 977         return;
 978 }
 979
 980 static int
 981 pccard_child_location_str(device_t bus, device_t child, char *buf,
 982     size_t buflen)
 983 {
 984         struct pccard_ivar *devi = PCCARD_IVAR(child);
 985         struct pccard_function *pf = devi->pf;
 986
 987         ksnprintf(buf, buflen, "function=%d", pf->number);
 988         return (0);
 989 }
 990
 991 /* XXX Maybe this should be in subr_bus? */
 992 static void
 993 pccard_safe_quote(char *dst, const char *src, size_t len)
 994 {
 995         char *walker = dst, *ep = dst + len - 1;
 996
 997         if (len == 0)
 998                 return;
 999         while (walker < ep)
1000         {
1001                 if (*src == '"') {
1002                         if (ep - walker < 2)
1003                                 break;
1004                         *walker++ = '\\';
1005                 }
1006                 *walker++ = *src++;
1007         }
1008         *walker = '\0';
1009 }
1010
1011 static int
1012 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
1013     size_t buflen)
1014 {
1015         struct pccard_ivar *devi = PCCARD_IVAR(child);
1016         struct pccard_function *pf = devi->pf;
1017         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1018         char cis0[128], cis1[128];
1019
1020         pccard_safe_quote(cis0, sc->card.cis1_info[0], sizeof(cis0));
1021         pccard_safe_quote(cis1, sc->card.cis1_info[1], sizeof(cis1));
1022         ksnprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x "
1023             "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d",
1024             sc->card.manufacturer, sc->card.product, cis0, cis1, pf->function);
1025         return (0);
1026 }
1027
1028 static int
1029 pccard_read_ivar(device_t bus, device_t child, int which, u_char *result)
1030 {
1031         struct pccard_ivar *devi = PCCARD_IVAR(child);
1032         struct pccard_function *pf = devi->pf;
1033         struct pccard_softc *sc = PCCARD_SOFTC(bus);
1034
1035         if (!pf)
1036                 panic("No pccard function pointer");
1037         switch (which) {
1038         default:
1039                 return (EINVAL);
1040         case PCCARD_IVAR_ETHADDR:
1041                 *(const uint8_t **)result = pf->pf_funce_lan_nid;
1042                 break;
1043         case PCCARD_IVAR_VENDOR:
1044                 *(uint32_t *)result = sc->card.manufacturer;
1045                 break;
1046         case PCCARD_IVAR_PRODUCT:
1047                 *(uint32_t *)result = sc->card.product;
1048                 break;
1049         case PCCARD_IVAR_PRODEXT:
1050                 *(uint16_t *)result = sc->card.prodext;
1051                 break;
1052         case PCCARD_IVAR_FUNCTION:
1053                 *(uint32_t *)result = pf->function;
1054                 break;
1055         case PCCARD_IVAR_FUNCTION_NUMBER:
1056                 *(uint32_t *)result = pf->number;
1057                 break;
1058         case PCCARD_IVAR_VENDOR_STR:
1059                 *(const char **)result = sc->card.cis1_info[0];
1060                 break;
1061         case PCCARD_IVAR_PRODUCT_STR:
1062                 *(const char **)result = sc->card.cis1_info[1];
1063                 break;
1064         case PCCARD_IVAR_CIS3_STR:
1065                 *(const char **)result = sc->card.cis1_info[2];
1066                 break;
1067         case PCCARD_IVAR_CIS4_STR:
1068                 *(const char **)result = sc->card.cis1_info[3];
1069                 break;
1070         }
1071         return (0);
1072 }
1073
1074 static void
1075 pccard_driver_added(device_t dev, driver_t *driver)
1076 {
1077         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1078         struct pccard_function *pf;
1079         device_t child;
1080
1081         STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1082                 if (STAILQ_EMPTY(&pf->cfe_head))
1083                         continue;
1084                 child = pf->dev;
1085                 if (device_get_state(child) != DS_NOTPRESENT)
1086                         continue;
1087                 if (pccard_function_enable(pf) == 0 &&
1088                     device_probe_and_attach(child) == 0) {
1089                         DEVPRINTF((sc->dev, "function %d CCR at %d "
1090                             "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
1091                             pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
1092                             pccard_ccr_read(pf, 0x00),
1093                         pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
1094                         pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
1095                         pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
1096                         pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
1097                 } else {
1098                         if (pf->cfe != NULL)
1099                                 pccard_function_disable(pf);
1100                 }
1101         }
1102         return;
1103 }
1104
1105 static struct resource *
1106 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1107     u_long start, u_long end, u_long count, u_int flags, int cpuid)
1108 {
1109         struct pccard_ivar *dinfo;
1110         struct resource_list_entry *rle = NULL;
1111         int passthrough = (device_get_parent(child) != dev);
1112         int isdefault = (start == 0 && end == ~0UL && count == 1);
1113         struct resource *r = NULL;
1114
1115         /* XXX I'm no longer sure this is right */
1116         if (passthrough) {
1117                 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1118                     type, rid, start, end, count, flags, cpuid));
1119         }
1120
1121         dinfo = device_get_ivars(child);
1122         rle = resource_list_find(&dinfo->resources, type, *rid);
1123
1124         if (rle == NULL && isdefault)
1125                 return (NULL);  /* no resource of that type/rid */
1126         if (rle == NULL || rle->res == NULL) {
1127                 /* XXX Need to adjust flags */
1128                 r = bus_alloc_resource(dev, type, rid, start, end,
1129                   count, flags);
1130                 if (r == NULL)
1131                     goto bad;
1132                 resource_list_add(&dinfo->resources, type, *rid,
1133                   rman_get_start(r), rman_get_end(r), count,
1134                   rman_get_cpuid(r));
1135                 rle = resource_list_find(&dinfo->resources, type, *rid);
1136                 if (!rle)
1137                     goto bad;
1138                 rle->res = r;
1139         }
1140         /*
1141          * If dev doesn't own the device, then we can't give this device
1142          * out.
1143          */
1144         if (rman_get_device(rle->res) != dev)
1145                 return (NULL);
1146         rman_set_device(rle->res, child);
1147         if (flags & RF_ACTIVE)
1148                 BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res);
1149         return (rle->res);
1150 bad:;
1151         device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1152         return (NULL);
1153 }
1154
1155 static int
1156 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1157     struct resource *r)
1158 {
1159         struct pccard_ivar *dinfo;
1160         int passthrough = (device_get_parent(child) != dev);
1161         struct resource_list_entry *rle = NULL;
1162
1163         if (passthrough)
1164                 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1165                     type, rid, r);
1166
1167         dinfo = device_get_ivars(child);
1168
1169         rle = resource_list_find(&dinfo->resources, type, rid);
1170
1171         if (!rle) {
1172                 device_printf(dev, "Allocated resource not found, "
1173                     "%d %x %lx %lx\n",
1174                     type, rid, rman_get_start(r), rman_get_size(r));
1175                 return ENOENT;
1176         }
1177         if (!rle->res) {
1178                 device_printf(dev, "Allocated resource not recorded\n");
1179                 return ENOENT;
1180         }
1181         /*
1182          * Deactivate the resource (since it is being released), and
1183          * assign it to the bus.
1184          */
1185         BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res);
1186         rman_set_device(rle->res, dev);
1187         return (0);
1188 }
1189
1190 static void
1191 pccard_child_detached(device_t parent, device_t dev)
1192 {
1193         struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1194         struct pccard_function *pf = ivar->pf;
1195
1196         pccard_function_disable(pf);
1197 }
1198
1199 static void
1200 pccard_intr(void *arg)
1201 {
1202         struct pccard_function *pf = (struct pccard_function*) arg;
1203         int reg;
1204         int doisr = 1;
1205
1206         /*
1207          * MFC cards know if they interrupted, so we have to ack the
1208          * interrupt and call the ISR.  Non-MFC cards don't have these
1209          * bits, so they always get called.  Many non-MFC cards have
1210          * this bit set always upon read, but some do not.
1211          *
1212          * We always ack the interrupt, even if there's no ISR
1213          * for the card.  This is done on the theory that acking
1214          * the interrupt will pacify the card enough to keep an
1215          * interrupt storm from happening.  Of course this won't
1216          * help in the non-MFC case.
1217          *
1218          * This has no impact for MPSAFEness of the client drivers.
1219          * We register this with whatever flags the intr_handler
1220          * was registered with.  All these functions are MPSAFE.
1221          */
1222         if (pccard_mfc(pf->sc)) {
1223                 reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1224                 if (reg & PCCARD_CCR_STATUS_INTR)
1225                         pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1226                             reg & ~PCCARD_CCR_STATUS_INTR);
1227                 else
1228                         doisr = 0;
1229         }
1230         if (pf->intr_handler != NULL && doisr)
1231                 pf->intr_handler(pf->intr_handler_arg);
1232 }
1233
1234 static int
1235 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1236     int flags, driver_intr_t *intr, void *arg,
1237     void **cookiep, lwkt_serialize_t serializer, const char *desc)
1238 {
1239         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1240         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1241         struct pccard_function *pf = ivar->pf;
1242         int err;
1243
1244         if (pf->intr_handler != NULL)
1245                 panic("Only one interrupt handler per function allowed");
1246         err = bus_generic_setup_intr(dev, child, irq, flags, pccard_intr,
1247                                      pf, cookiep, serializer, desc);
1248         if (err != 0)
1249                 return (err);
1250         pf->intr_handler = intr;
1251         pf->intr_handler_arg = arg;
1252         pf->intr_handler_cookie = *cookiep;
1253         if (pccard_mfc(sc)) {
1254                 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1255                     pccard_ccr_read(pf, PCCARD_CCR_OPTION) |
1256                     PCCARD_CCR_OPTION_IREQ_ENABLE);
1257         }
1258         return (0);
1259 }
1260
1261 static int
1262 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1263     void *cookie)
1264 {
1265         struct pccard_softc *sc = PCCARD_SOFTC(dev);
1266         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1267         struct pccard_function *pf = ivar->pf;
1268         int ret;
1269
1270         if (pccard_mfc(sc)) {
1271                 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1272                     pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
1273                     ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1274         }
1275         ret = bus_generic_teardown_intr(dev, child, r, cookie);
1276         if (ret == 0) {
1277                 pf->intr_handler = NULL;
1278                 pf->intr_handler_arg = NULL;
1279                 pf->intr_handler_cookie = NULL;
1280         }
1281
1282         return (ret);
1283 }
1284
1285 static int
1286 pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
1287     struct resource *r)
1288 {
1289         struct pccard_ivar *ivar = PCCARD_IVAR(child);
1290         struct pccard_function *pf = ivar->pf;
1291
1292         switch(type) {
1293         case SYS_RES_IOPORT:
1294                 /*
1295                  * We need to adjust IOBASE[01] and IOSIZE if we're an MFC
1296                  * card.
1297                  */
1298                 if (pccard_mfc(pf->sc))
1299                         pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1300                             rman_get_size(r));
1301                 break;
1302         default:
1303                 break;
1304         }
1305         return (bus_generic_activate_resource(brdev, child, type, rid, r));
1306 }
1307
1308 static int
1309 pccard_deactivate_resource(device_t brdev, device_t child, int type,
1310     int rid, struct resource *r)
1311 {
1312         /* XXX undo pccard_activate_resource? XXX */
1313         return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
1314 }
1315
1316 static device_method_t pccard_methods[] = {
1317         /* Device interface */
1318         DEVMETHOD(device_probe,         pccard_probe),
1319         DEVMETHOD(device_attach,        pccard_attach),
1320         DEVMETHOD(device_detach,        pccard_detach),
1321         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
1322         DEVMETHOD(device_suspend,       pccard_suspend),
1323         DEVMETHOD(device_resume,        pccard_resume),
1324
1325         /* Bus interface */
1326         DEVMETHOD(bus_print_child,      pccard_print_child),
1327         DEVMETHOD(bus_driver_added,     pccard_driver_added),
1328         DEVMETHOD(bus_child_detached,   pccard_child_detached),
1329         DEVMETHOD(bus_alloc_resource,   pccard_alloc_resource),
1330         DEVMETHOD(bus_release_resource, pccard_release_resource),
1331         DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1332         DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
1333         DEVMETHOD(bus_setup_intr,       pccard_setup_intr),
1334         DEVMETHOD(bus_teardown_intr,    pccard_teardown_intr),
1335         DEVMETHOD(bus_set_resource,     pccard_set_resource),
1336         DEVMETHOD(bus_get_resource,     pccard_get_resource),
1337         DEVMETHOD(bus_delete_resource,  pccard_delete_resource),
1338         DEVMETHOD(bus_probe_nomatch,    pccard_probe_nomatch),
1339         DEVMETHOD(bus_read_ivar,        pccard_read_ivar),
1340         DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1341         DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1342
1343         /* Card Interface */
1344         DEVMETHOD(card_set_res_flags,   pccard_set_res_flags),
1345         DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1346         DEVMETHOD(card_attach_card,     pccard_attach_card),
1347         DEVMETHOD(card_detach_card,     pccard_detach_card),
1348         DEVMETHOD(card_compat_do_probe, pccard_compat_do_probe),
1349         DEVMETHOD(card_compat_do_attach, pccard_compat_do_attach),
1350         DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1351         DEVMETHOD(card_cis_scan,        pccard_scan_cis),
1352
1353         { 0, 0 }
1354 };
1355
1356 static driver_t pccard_driver = {
1357         "pccard",
1358         pccard_methods,
1359         sizeof(struct pccard_softc)
1360 };
1361
1362 devclass_t      pccard_devclass;
1363
1364 /* Maybe we need to have a slot device? */
1365 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, NULL, NULL);
1366 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, NULL, NULL);
1367 MODULE_VERSION(pccard, 1);