sys/dev/misc/pccard/pccard_cis.c

   1 /*      $NetBSD: pcmcia_cis.c,v 1.10 1998/12/29 09:03:15 marc Exp $     */
   2 /* $FreeBSD: src/sys/dev/pccard/pccard_cis.c,v 1.5.2.1 2000/05/23 03:56:59 imp Exp $ */
   3
   4 /*
   5  * Copyright (c) 1997 Marc Horowitz.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Marc Horowitz.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/param.h>
  34 #include <sys/systm.h>
  35 #include <sys/malloc.h>
  36 #include <sys/module.h>
  37 #include <sys/kernel.h>
  38 #include <sys/queue.h>
  39 #include <sys/types.h>
  40
  41 #include <sys/bus.h>
  42 #include <machine/bus.h>
  43 #include <sys/rman.h>
  44 #include <machine/resource.h>
  45
  46 #include <dev/pccard/pccardreg.h>
  47 #include <dev/pccard/pccardvar.h>
  48
  49 #include "card_if.h"
  50
  51 #define PCCARDCISDEBUG
  52 #ifdef PCCARDCISDEBUG
  53 int     pccardcis_debug = 1;
  54 #define DPRINTF(arg) if (pccardcis_debug) printf arg
  55 #define DEVPRINTF(arg) if (pccardcis_debug) device_printf arg
  56 #else
  57 #define DPRINTF(arg)
  58 #define DEVPRINTF(arg)
  59 #endif
  60
  61 #define PCCARD_CIS_SIZE         1024
  62
  63 struct cis_state {
  64         int     count;
  65         int     gotmfc;
  66         struct pccard_config_entry temp_cfe;
  67         struct pccard_config_entry *default_cfe;
  68         struct pccard_card *card;
  69         struct pccard_function *pf;
  70 };
  71
  72 int     pccard_parse_cis_tuple(struct pccard_tuple *, void *);
  73
  74 void
  75 pccard_read_cis(struct pccard_softc *sc)
  76 {
  77         struct cis_state state;
  78
  79         state.count = 0;
  80         state.gotmfc = 0;
  81
  82         state.card = &sc->card;
  83
  84         state.card->error = 0;
  85         state.card->cis1_major = -1;
  86         state.card->cis1_minor = -1;
  87         state.card->cis1_info[0] = NULL;
  88         state.card->cis1_info[1] = NULL;
  89         state.card->cis1_info[2] = NULL;
  90         state.card->cis1_info[3] = NULL;
  91         state.card->manufacturer = PCCARD_VENDOR_INVALID;
  92         state.card->product = PCCARD_PRODUCT_INVALID;
  93         STAILQ_INIT(&state.card->pf_head);
  94
  95         state.pf = NULL;
  96
  97 printf("Calling scan_cis\n");
  98
  99         if (pccard_scan_cis(sc->dev, pccard_parse_cis_tuple,
 100             &state) == -1)
 101                 state.card->error++;
 102 }
 103
 104 int
 105 pccard_scan_cis(device_t dev, int (*fct)(struct pccard_tuple *, void *),
 106         void *arg)
 107 {
 108         struct resource *res;
 109         int rid;
 110         struct pccard_tuple tuple;
 111         int longlink_present;
 112         int longlink_common;
 113         u_long longlink_addr;
 114         int mfc_count;
 115         int mfc_index;
 116         struct {
 117                 int     common;
 118                 u_long  addr;
 119         } mfc[256 / 5];
 120         int ret;
 121
 122         ret = 0;
 123
 124         /* allocate some memory */
 125
 126         rid = 0;
 127         res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0,
 128             PCCARD_CIS_SIZE, RF_ACTIVE);
 129         if (res == NULL) {
 130                 device_printf(dev, "can't alloc memory to read attributes\n");
 131                 return -1;
 132         }
 133         CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
 134             rid, PCCARD_A_MEM_ATTR);
 135         tuple.memt = rman_get_bustag(res);
 136         tuple.memh = rman_get_bushandle(res);
 137         tuple.ptr = 0;
 138
 139         DPRINTF(("cis mem map %x\n", (unsigned int) tuple.memh));
 140
 141         tuple.mult = 2;
 142
 143         longlink_present = 1;
 144         longlink_common = 1;
 145         longlink_addr = 0;
 146
 147         mfc_count = 0;
 148         mfc_index = 0;
 149
 150         DEVPRINTF((dev, "CIS tuple chain:\n"));
 151
 152         while (1) {
 153                 while (1) {
 154                         /* get the tuple code */
 155
 156                         tuple.code = pccard_cis_read_1(&tuple, tuple.ptr);
 157
 158                         /* two special-case tuples */
 159
 160                         if (tuple.code == PCCARD_CISTPL_NULL) {
 161                                 DPRINTF(("CISTPL_NONE\n 00\n"));
 162                                 tuple.ptr++;
 163                                 continue;
 164                         } else if (tuple.code == PCCARD_CISTPL_END) {
 165                                 DPRINTF(("CISTPL_END\n ff\n"));
 166                                 /* Call the function for the END tuple, since
 167                                    the CIS semantics depend on it */
 168                                 if ((*fct) (&tuple, arg)) {
 169                                         ret = 1;
 170                                         goto done;
 171                                 }
 172                                 ret = 1; goto done; /* XXX IMP XXX */
 173                                 tuple.ptr++;
 174                                 break;
 175                         }
 176                         /* now all the normal tuples */
 177
 178                         tuple.length = pccard_cis_read_1(&tuple, tuple.ptr + 1);
 179                         switch (tuple.code) {
 180                         case PCCARD_CISTPL_LONGLINK_A:
 181                         case PCCARD_CISTPL_LONGLINK_C:
 182                                 if (tuple.length < 4) {
 183                                         DPRINTF(("CISTPL_LONGLINK_%s too "
 184                                             "short %d\n",
 185                                             longlink_common ? "C" : "A",
 186                                             tuple.length));
 187                                         break;
 188                                 }
 189                                 longlink_present = 1;
 190                                 longlink_common = (tuple.code ==
 191                                     PCCARD_CISTPL_LONGLINK_C) ? 1 : 0;
 192                                 longlink_addr = pccard_tuple_read_4(&tuple, 0);
 193                                 DPRINTF(("CISTPL_LONGLINK_%s %lx\n",
 194                                     longlink_common ? "C" : "A",
 195                                     longlink_addr));
 196                                 break;
 197                         case PCCARD_CISTPL_NO_LINK:
 198                                 longlink_present = 0;
 199                                 DPRINTF(("CISTPL_NO_LINK\n"));
 200                                 break;
 201                         case PCCARD_CISTPL_CHECKSUM:
 202                                 if (tuple.length < 5) {
 203                                         DPRINTF(("CISTPL_CHECKSUM too "
 204                                             "short %d\n", tuple.length));
 205                                         break;
 206                                 } {
 207                                         int16_t offset;
 208                                         u_long addr, length;
 209                                         u_int cksum, sum;
 210                                         int i;
 211
 212                                         *((u_int16_t *) & offset) =
 213                                             pccard_tuple_read_2(&tuple, 0);
 214                                         length = pccard_tuple_read_2(&tuple, 2);
 215                                         cksum = pccard_tuple_read_1(&tuple, 4);
 216
 217                                         addr = tuple.ptr + offset;
 218
 219                                         DPRINTF(("CISTPL_CHECKSUM addr=%lx "
 220                                             "len=%lx cksum=%x",
 221                                             addr, length, cksum));
 222
 223                                         /*
 224                                          * XXX do more work to deal with
 225                                          * distant regions
 226                                          */
 227                                         if ((addr >= PCCARD_CIS_SIZE) ||
 228                                             ((addr + length) < 0) ||
 229                                             ((addr + length) >=
 230                                               PCCARD_CIS_SIZE)) {
 231                                                 DPRINTF((" skipped, "
 232                                                     "too distant\n"));
 233                                                 break;
 234                                         }
 235                                         sum = 0;
 236                                         for (i = 0; i < length; i++)
 237                                                 sum +=
 238                                                     bus_space_read_1(tuple.memt,
 239                                                     tuple.memh,
 240                                                     addr + tuple.mult * i);
 241                                         if (cksum != (sum & 0xff)) {
 242                                                 DPRINTF((" failed sum=%x\n",
 243                                                     sum));
 244                                                 device_printf(dev,
 245                                                     "CIS checksum failed\n");
 246 #if 0
 247                                                 /*
 248                                                  * XXX Some working cards have
 249                                                  * XXX bad checksums!!
 250                                                  */
 251                                                 ret = -1;
 252 #endif
 253                                         } else {
 254                                                 DPRINTF((" ok\n"));
 255                                         }
 256                                 }
 257                                 break;
 258                         case PCCARD_CISTPL_LONGLINK_MFC:
 259                                 if (tuple.length < 1) {
 260                                         DPRINTF(("CISTPL_LONGLINK_MFC too "
 261                                             "short %d\n", tuple.length));
 262                                         break;
 263                                 }
 264                                 /*
 265                                  * this is kind of ad hoc, as I don't have
 266                                  * any real documentation
 267                                  */
 268                                 {
 269                                         int i;
 270
 271                                         mfc_count =
 272                                             pccard_tuple_read_1(&tuple, 0);
 273                                         DPRINTF(("CISTPL_LONGLINK_MFC %d",
 274                                             mfc_count));
 275                                         for (i = 0; i < mfc_count; i++) {
 276                                                 mfc[i].common =
 277                                                     (pccard_tuple_read_1(&tuple,
 278                                                     1 + 5 * i) ==
 279                                                     PCCARD_MFC_MEM_COMMON) ?
 280                                                     1 : 0;
 281                                                 mfc[i].addr =
 282                                                     pccard_tuple_read_4(&tuple,
 283                                                     1 + 5 * i + 1);
 284                                                 DPRINTF((" %s:%lx",
 285                                                     mfc[i].common ? "common" :
 286                                                     "attr", mfc[i].addr));
 287                                         }
 288                                         DPRINTF(("\n"));
 289                                 }
 290                                 /*
 291                                  * for LONGLINK_MFC, fall through to the
 292                                  * function.  This tuple has structural and
 293                                  * semantic content.
 294                                  */
 295                         default:
 296                                 {
 297                                         if ((*fct) (&tuple, arg)) {
 298                                                 ret = 1;
 299                                                 goto done;
 300                                         }
 301                                 }
 302                                 break;
 303                         }       /* switch */
 304 #ifdef PCCARDCISDEBUG
 305                         /* print the tuple */
 306                         {
 307                                 int i;
 308
 309                                 DPRINTF((" %02x %02x", tuple.code,
 310                                     tuple.length));
 311
 312                                 for (i = 0; i < tuple.length; i++) {
 313                                         DPRINTF((" %02x",
 314                                             pccard_tuple_read_1(&tuple, i)));
 315                                         if ((i % 16) == 13)
 316                                                 DPRINTF(("\n"));
 317                                 }
 318                                 if ((i % 16) != 14)
 319                                         DPRINTF(("\n"));
 320                         }
 321 #endif
 322                         /* skip to the next tuple */
 323                         tuple.ptr += 2 + tuple.length;
 324                 }
 325
 326 #ifdef XXX      /* I'm not up to this tonight, need to implement new API */
 327                 /* to deal with moving windows and such.  At least that's */
 328                 /* what it appears at this instant */
 329
 330                 /*
 331                  * the chain is done.  Clean up and move onto the next one,
 332                  * if any.  The loop is here in the case that there is an MFC
 333                  * card with no longlink (which defaults to existing, == 0).
 334                  * In general, this means that if one pointer fails, it will
 335                  * try the next one, instead of just bailing.
 336                  */
 337
 338                 while (1) {
 339                         pccard_chip_mem_unmap(pct, pch, window);
 340
 341                         if (longlink_present) {
 342                                 /*
 343                                  * if the longlink is to attribute memory,
 344                                  * then it is unindexed.  That is, if the
 345                                  * link value is 0x100, then the actual
 346                                  * memory address is 0x200.  This means that
 347                                  * we need to multiply by 2 before calling
 348                                  * mem_map, and then divide the resulting ptr
 349                                  * by 2 after.
 350                                  */
 351
 352                                 if (!longlink_common)
 353                                         longlink_addr *= 2;
 354
 355                                 pccard_chip_mem_map(pct, pch, longlink_common ?
 356                                     PCCARD_MEM_COMMON : PCCARD_MEM_ATTR,
 357                                     longlink_addr, PCCARD_CIS_SIZE,
 358                                     &pcmh, &tuple.ptr, &window);
 359
 360                                 if (!longlink_common)
 361                                         tuple.ptr /= 2;
 362                                 DPRINTF(("cis mem map %x\n",
 363                                     (unsigned int) tuple.memh));
 364                                 tuple.mult = longlink_common ? 1 : 2;
 365                                 longlink_present = 0;
 366                                 longlink_common = 1;
 367                                 longlink_addr = 0;
 368                         } else if (mfc_count && (mfc_index < mfc_count)) {
 369                                 if (!mfc[mfc_index].common)
 370                                         mfc[mfc_index].addr *= 2;
 371
 372                                 pccard_chip_mem_map(pct, pch,
 373                                     mfc[mfc_index].common ?
 374                                     PCCARD_MEM_COMMON : PCCARD_MEM_ATTR,
 375                                     mfc[mfc_index].addr, PCCARD_CIS_SIZE,
 376                                     &pcmh, &tuple.ptr, &window);
 377
 378                                 if (!mfc[mfc_index].common)
 379                                         tuple.ptr /= 2;
 380                                 DPRINTF(("cis mem map %x\n",
 381                                     (unsigned int) tuple.memh));
 382                                 /* set parse state, and point at the next one */
 383
 384                                 tuple.mult = mfc[mfc_index].common ? 1 : 2;
 385
 386                                 mfc_index++;
 387                         } else {
 388                                 goto done;
 389                         }
 390
 391                         /* make sure that the link is valid */
 392                         tuple.code = pccard_cis_read_1(&tuple, tuple.ptr);
 393                         if (tuple.code != PCCARD_CISTPL_LINKTARGET) {
 394                                 DPRINTF(("CISTPL_LINKTARGET expected, "
 395                                     "code %02x observed\n", tuple.code));
 396                                 continue;
 397                         }
 398                         tuple.length = pccard_cis_read_1(&tuple, tuple.ptr + 1);
 399                         if (tuple.length < 3) {
 400                                 DPRINTF(("CISTPL_LINKTARGET too short %d\n",
 401                                     tuple.length));
 402                                 continue;
 403                         }
 404                         if ((pccard_tuple_read_1(&tuple, 0) != 'C') ||
 405                             (pccard_tuple_read_1(&tuple, 1) != 'I') ||
 406                             (pccard_tuple_read_1(&tuple, 2) != 'S')) {
 407                                 DPRINTF(("CISTPL_LINKTARGET magic "
 408                                     "%02x%02x%02x incorrect\n",
 409                                     pccard_tuple_read_1(&tuple, 0),
 410                                     pccard_tuple_read_1(&tuple, 1),
 411                                     pccard_tuple_read_1(&tuple, 2)));
 412                                 continue;
 413                         }
 414                         tuple.ptr += 2 + tuple.length;
 415
 416                         break;
 417                 }
 418 #endif /* XXX */
 419         }
 420
 421 done:
 422         bus_release_resource(dev, SYS_RES_MEMORY, rid, res);
 423
 424         return (ret);
 425 }
 426
 427 /* XXX this is incredibly verbose.  Not sure what trt is */
 428
 429 void
 430 pccard_print_cis(device_t dev)
 431 {
 432         struct pccard_softc *sc = (struct pccard_softc *) device_get_softc(dev);
 433         struct pccard_card *card = &sc->card;
 434         struct pccard_function *pf;
 435         struct pccard_config_entry *cfe;
 436         int i;
 437
 438         device_printf(dev, "CIS version ");
 439         if (card->cis1_major == 4) {
 440                 if (card->cis1_minor == 0)
 441                         printf("PCCARD 1.0\n");
 442                 else if (card->cis1_minor == 1)
 443                         printf("PCCARD 2.0 or 2.1\n");
 444         } else if (card->cis1_major >= 5)
 445                 printf("PC Card Standard %d.%d\n", card->cis1_major, card->cis1_minor);
 446         else
 447                 printf("unknown (major=%d, minor=%d)\n",
 448                     card->cis1_major, card->cis1_minor);
 449
 450         device_printf(dev, "CIS info: ");
 451         for (i = 0; i < 4; i++) {
 452                 if (card->cis1_info[i] == NULL)
 453                         break;
 454                 if (i)
 455                         printf(", ");
 456                 printf("%s", card->cis1_info[i]);
 457         }
 458         printf("\n");
 459
 460         device_printf(dev, "Manufacturer code 0x%x, product 0x%x\n",
 461             card->manufacturer, card->product);
 462
 463         STAILQ_FOREACH(pf, &card->pf_head, pf_list) {
 464                 device_printf(dev, "function %d: ", pf->number);
 465
 466                 switch (pf->function) {
 467                 case PCCARD_FUNCTION_UNSPEC:
 468                         printf("unspecified");
 469                         break;
 470                 case PCCARD_FUNCTION_MULTIFUNCTION:
 471                         printf("multi-function");
 472                         break;
 473                 case PCCARD_FUNCTION_MEMORY:
 474                         printf("memory");
 475                         break;
 476                 case PCCARD_FUNCTION_SERIAL:
 477                         printf("serial port");
 478                         break;
 479                 case PCCARD_FUNCTION_PARALLEL:
 480                         printf("parallel port");
 481                         break;
 482                 case PCCARD_FUNCTION_DISK:
 483                         printf("fixed disk");
 484                         break;
 485                 case PCCARD_FUNCTION_VIDEO:
 486                         printf("video adapter");
 487                         break;
 488                 case PCCARD_FUNCTION_NETWORK:
 489                         printf("network adapter");
 490                         break;
 491                 case PCCARD_FUNCTION_AIMS:
 492                         printf("auto incrementing mass storage");
 493                         break;
 494                 case PCCARD_FUNCTION_SCSI:
 495                         printf("SCSI bridge");
 496                         break;
 497                 case PCCARD_FUNCTION_SECURITY:
 498                         printf("Security services");
 499                         break;
 500                 case PCCARD_FUNCTION_INSTRUMENT:
 501                         printf("Instrument");
 502                         break;
 503                 default:
 504                         printf("unknown (%d)", pf->function);
 505                         break;
 506                 }
 507
 508                 printf(", ccr addr %lx mask %lx\n", pf->ccr_base, pf->ccr_mask);
 509
 510                 STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
 511                         device_printf(dev, "function %d, config table entry "
 512                             "%d: ", pf->number, cfe->number);
 513
 514                         switch (cfe->iftype) {
 515                         case PCCARD_IFTYPE_MEMORY:
 516                                 printf("memory card");
 517                                 break;
 518                         case PCCARD_IFTYPE_IO:
 519                                 printf("I/O card");
 520                                 break;
 521                         default:
 522                                 printf("card type unknown");
 523                                 break;
 524                         }
 525
 526                         printf("; irq mask %x", cfe->irqmask);
 527
 528                         if (cfe->num_iospace) {
 529                                 printf("; iomask %lx, iospace", cfe->iomask);
 530
 531                                 for (i = 0; i < cfe->num_iospace; i++) {
 532                                         printf(" %lx", cfe->iospace[i].start);
 533                                         if (cfe->iospace[i].length)
 534                                                 printf("-%lx",
 535                                                     cfe->iospace[i].start +
 536                                                     cfe->iospace[i].length - 1);
 537                                 }
 538                         }
 539                         if (cfe->num_memspace) {
 540                                 printf("; memspace");
 541
 542                                 for (i = 0; i < cfe->num_memspace; i++) {
 543                                         printf(" %lx",
 544                                             cfe->memspace[i].cardaddr);
 545                                         if (cfe->memspace[i].length)
 546                                                 printf("-%lx",
 547                                                     cfe->memspace[i].cardaddr +
 548                                                     cfe->memspace[i].length - 1);
 549                                         if (cfe->memspace[i].hostaddr)
 550                                                 printf("@%lx",
 551                                                     cfe->memspace[i].hostaddr);
 552                                 }
 553                         }
 554                         if (cfe->maxtwins)
 555                                 printf("; maxtwins %d", cfe->maxtwins);
 556
 557                         printf(";");
 558
 559                         if (cfe->flags & PCCARD_CFE_MWAIT_REQUIRED)
 560                                 printf(" mwait_required");
 561                         if (cfe->flags & PCCARD_CFE_RDYBSY_ACTIVE)
 562                                 printf(" rdybsy_active");
 563                         if (cfe->flags & PCCARD_CFE_WP_ACTIVE)
 564                                 printf(" wp_active");
 565                         if (cfe->flags & PCCARD_CFE_BVD_ACTIVE)
 566                                 printf(" bvd_active");
 567                         if (cfe->flags & PCCARD_CFE_IO8)
 568                                 printf(" io8");
 569                         if (cfe->flags & PCCARD_CFE_IO16)
 570                                 printf(" io16");
 571                         if (cfe->flags & PCCARD_CFE_IRQSHARE)
 572                                 printf(" irqshare");
 573                         if (cfe->flags & PCCARD_CFE_IRQPULSE)
 574                                 printf(" irqpulse");
 575                         if (cfe->flags & PCCARD_CFE_IRQLEVEL)
 576                                 printf(" irqlevel");
 577                         if (cfe->flags & PCCARD_CFE_POWERDOWN)
 578                                 printf(" powerdown");
 579                         if (cfe->flags & PCCARD_CFE_READONLY)
 580                                 printf(" readonly");
 581                         if (cfe->flags & PCCARD_CFE_AUDIO)
 582                                 printf(" audio");
 583
 584                         printf("\n");
 585                 }
 586         }
 587
 588         if (card->error)
 589                 device_printf(dev, "%d errors found while parsing CIS\n",
 590                     card->error);
 591 }
 592
 593 int
 594 pccard_parse_cis_tuple(struct pccard_tuple *tuple, void *arg)
 595 {
 596         /* most of these are educated guesses */
 597         static struct pccard_config_entry init_cfe = {
 598                 -1, PCCARD_CFE_RDYBSY_ACTIVE | PCCARD_CFE_WP_ACTIVE |
 599                 PCCARD_CFE_BVD_ACTIVE, PCCARD_IFTYPE_MEMORY,
 600         };
 601
 602         struct cis_state *state = arg;
 603
 604         switch (tuple->code) {
 605         case PCCARD_CISTPL_END:
 606                 /* if we've seen a LONGLINK_MFC, and this is the first
 607                  * END after it, reset the function list.
 608                  *
 609                  * XXX This might also be the right place to start a
 610                  * new function, but that assumes that a function
 611                  * definition never crosses any longlink, and I'm not
 612                  * sure about that.  This is probably safe for MFC
 613                  * cards, but what we have now isn't broken, so I'd
 614                  * rather not change it.
 615                  */
 616                 if (state->gotmfc == 1) {
 617                         struct pccard_function *pf, *pfnext;
 618
 619                         for (pf = STAILQ_FIRST(&state->card->pf_head);
 620                              pf != NULL; pf = pfnext) {
 621                                 pfnext = STAILQ_NEXT(pf, pf_list);
 622                                 free(pf, M_DEVBUF);
 623                         }
 624
 625                         STAILQ_INIT(&state->card->pf_head);
 626
 627                         state->count = 0;
 628                         state->gotmfc = 2;
 629                         state->pf = NULL;
 630                 }
 631                 break;
 632         case PCCARD_CISTPL_LONGLINK_MFC:
 633                 /*
 634                  * this tuple's structure was dealt with in scan_cis.  here,
 635                  * record the fact that the MFC tuple was seen, so that
 636                  * functions declared before the MFC link can be cleaned
 637                  * up.
 638                  */
 639                 state->gotmfc = 1;
 640                 break;
 641 #ifdef PCCARDCISDEBUG
 642         case PCCARD_CISTPL_DEVICE:
 643         case PCCARD_CISTPL_DEVICE_A:
 644                 {
 645                         u_int reg, dtype, dspeed;
 646
 647                         reg = pccard_tuple_read_1(tuple, 0);
 648                         dtype = reg & PCCARD_DTYPE_MASK;
 649                         dspeed = reg & PCCARD_DSPEED_MASK;
 650
 651                         DPRINTF(("CISTPL_DEVICE%s type=",
 652                         (tuple->code == PCCARD_CISTPL_DEVICE) ? "" : "_A"));
 653                         switch (dtype) {
 654                         case PCCARD_DTYPE_NULL:
 655                                 DPRINTF(("null"));
 656                                 break;
 657                         case PCCARD_DTYPE_ROM:
 658                                 DPRINTF(("rom"));
 659                                 break;
 660                         case PCCARD_DTYPE_OTPROM:
 661                                 DPRINTF(("otprom"));
 662                                 break;
 663                         case PCCARD_DTYPE_EPROM:
 664                                 DPRINTF(("eprom"));
 665                                 break;
 666                         case PCCARD_DTYPE_EEPROM:
 667                                 DPRINTF(("eeprom"));
 668                                 break;
 669                         case PCCARD_DTYPE_FLASH:
 670                                 DPRINTF(("flash"));
 671                                 break;
 672                         case PCCARD_DTYPE_SRAM:
 673                                 DPRINTF(("sram"));
 674                                 break;
 675                         case PCCARD_DTYPE_DRAM:
 676                                 DPRINTF(("dram"));
 677                                 break;
 678                         case PCCARD_DTYPE_FUNCSPEC:
 679                                 DPRINTF(("funcspec"));
 680                                 break;
 681                         case PCCARD_DTYPE_EXTEND:
 682                                 DPRINTF(("extend"));
 683                                 break;
 684                         default:
 685                                 DPRINTF(("reserved"));
 686                                 break;
 687                         }
 688                         DPRINTF((" speed="));
 689                         switch (dspeed) {
 690                         case PCCARD_DSPEED_NULL:
 691                                 DPRINTF(("null"));
 692                                 break;
 693                         case PCCARD_DSPEED_250NS:
 694                                 DPRINTF(("250ns"));
 695                                 break;
 696                         case PCCARD_DSPEED_200NS:
 697                                 DPRINTF(("200ns"));
 698                                 break;
 699                         case PCCARD_DSPEED_150NS:
 700                                 DPRINTF(("150ns"));
 701                                 break;
 702                         case PCCARD_DSPEED_100NS:
 703                                 DPRINTF(("100ns"));
 704                                 break;
 705                         case PCCARD_DSPEED_EXT:
 706                                 DPRINTF(("ext"));
 707                                 break;
 708                         default:
 709                                 DPRINTF(("reserved"));
 710                                 break;
 711                         }
 712                 }
 713                 DPRINTF(("\n"));
 714                 break;
 715 #endif
 716         case PCCARD_CISTPL_VERS_1:
 717                 if (tuple->length < 6) {
 718                         DPRINTF(("CISTPL_VERS_1 too short %d\n",
 719                             tuple->length));
 720                         break;
 721                 } {
 722                         int start, i, ch, count;
 723
 724                         state->card->cis1_major = pccard_tuple_read_1(tuple, 0);
 725                         state->card->cis1_minor = pccard_tuple_read_1(tuple, 1);
 726
 727                         for (count = 0, start = 0, i = 0;
 728                             (count < 4) && ((i + 4) < 256); i++) {
 729                                 ch = pccard_tuple_read_1(tuple, 2 + i);
 730                                 if (ch == 0xff)
 731                                         break;
 732                                 state->card->cis1_info_buf[i] = ch;
 733                                 if (ch == 0) {
 734                                         state->card->cis1_info[count] =
 735                                             state->card->cis1_info_buf + start;
 736                                         start = i + 1;
 737                                         count++;
 738                                 }
 739                         }
 740                         DPRINTF(("CISTPL_VERS_1\n"));
 741                 }
 742                 break;
 743         case PCCARD_CISTPL_MANFID:
 744                 if (tuple->length < 4) {
 745                         DPRINTF(("CISTPL_MANFID too short %d\n",
 746                             tuple->length));
 747                         break;
 748                 }
 749                 state->card->manufacturer = pccard_tuple_read_2(tuple, 0);
 750                 state->card->product = pccard_tuple_read_2(tuple, 2);
 751                 DPRINTF(("CISTPL_MANFID\n"));
 752                 break;
 753         case PCCARD_CISTPL_FUNCID:
 754                 if (tuple->length < 1) {
 755                         DPRINTF(("CISTPL_FUNCID too short %d\n",
 756                             tuple->length));
 757                         break;
 758                 }
 759                 if ((state->pf == NULL) || (state->gotmfc == 2)) {
 760                         state->pf = malloc(sizeof(*state->pf), M_DEVBUF,
 761                             M_NOWAIT);
 762                         bzero(state->pf, sizeof(*state->pf));
 763                         state->pf->number = state->count++;
 764                         state->pf->last_config_index = -1;
 765                         STAILQ_INIT(&state->pf->cfe_head);
 766
 767                         STAILQ_INSERT_TAIL(&state->card->pf_head, state->pf,
 768                             pf_list);
 769                 }
 770                 state->pf->function = pccard_tuple_read_1(tuple, 0);
 771
 772                 DPRINTF(("CISTPL_FUNCID\n"));
 773                 break;
 774         case PCCARD_CISTPL_CONFIG:
 775                 if (tuple->length < 3) {
 776                         DPRINTF(("CISTPL_CONFIG too short %d\n",
 777                             tuple->length));
 778                         break;
 779                 } {
 780                         u_int reg, rasz, rmsz, rfsz;
 781                         int i;
 782
 783                         reg = pccard_tuple_read_1(tuple, 0);
 784                         rasz = 1 + ((reg & PCCARD_TPCC_RASZ_MASK) >>
 785                             PCCARD_TPCC_RASZ_SHIFT);
 786                         rmsz = 1 + ((reg & PCCARD_TPCC_RMSZ_MASK) >>
 787                             PCCARD_TPCC_RMSZ_SHIFT);
 788                         rfsz = ((reg & PCCARD_TPCC_RFSZ_MASK) >>
 789                             PCCARD_TPCC_RFSZ_SHIFT);
 790
 791                         if (tuple->length < (rasz + rmsz + rfsz)) {
 792                                 DPRINTF(("CISTPL_CONFIG (%d,%d,%d) too "
 793                                     "short %d\n", rasz, rmsz, rfsz,
 794                                     tuple->length));
 795                                 break;
 796                         }
 797                         if (state->pf == NULL) {
 798                                 state->pf = malloc(sizeof(*state->pf),
 799                                     M_DEVBUF, M_NOWAIT);
 800                                 bzero(state->pf, sizeof(*state->pf));
 801                                 state->pf->number = state->count++;
 802                                 state->pf->last_config_index = -1;
 803                                 STAILQ_INIT(&state->pf->cfe_head);
 804
 805                                 STAILQ_INSERT_TAIL(&state->card->pf_head,
 806                                     state->pf, pf_list);
 807
 808                                 state->pf->function = PCCARD_FUNCTION_UNSPEC;
 809                         }
 810                         state->pf->last_config_index =
 811                             pccard_tuple_read_1(tuple, 1);
 812
 813                         state->pf->ccr_base = 0;
 814                         for (i = 0; i < rasz; i++)
 815                                 state->pf->ccr_base |=
 816                                     ((pccard_tuple_read_1(tuple, 2 + i)) <<
 817                                     (i * 8));
 818
 819                         state->pf->ccr_mask = 0;
 820                         for (i = 0; i < rmsz; i++)
 821                                 state->pf->ccr_mask |=
 822                                     ((pccard_tuple_read_1(tuple,
 823                                     2 + rasz + i)) << (i * 8));
 824
 825                         /* skip the reserved area and subtuples */
 826
 827                         /* reset the default cfe for each cfe list */
 828                         state->temp_cfe = init_cfe;
 829                         state->default_cfe = &state->temp_cfe;
 830                 }
 831                 DPRINTF(("CISTPL_CONFIG\n"));
 832                 break;
 833         case PCCARD_CISTPL_CFTABLE_ENTRY:
 834                 {
 835                         int idx, i, j;
 836                         u_int reg, reg2;
 837                         u_int intface, def, num;
 838                         u_int power, timing, iospace, irq, memspace, misc;
 839                         struct pccard_config_entry *cfe;
 840
 841                         idx = 0;
 842
 843                         reg = pccard_tuple_read_1(tuple, idx);
 844                         idx++;
 845                         intface = reg & PCCARD_TPCE_INDX_INTFACE;
 846                         def = reg & PCCARD_TPCE_INDX_DEFAULT;
 847                         num = reg & PCCARD_TPCE_INDX_NUM_MASK;
 848
 849                         /*
 850                          * this is a little messy.  Some cards have only a
 851                          * cfentry with the default bit set.  So, as we go
 852                          * through the list, we add new indexes to the queue,
 853                          * and keep a pointer to the last one with the
 854                          * default bit set.  if we see a record with the same
 855                          * index, as the default, we stash the default and
 856                          * replace the queue entry. otherwise, we just add
 857                          * new entries to the queue, pointing the default ptr
 858                          * at them if the default bit is set.  if we get to
 859                          * the end with the default pointer pointing at a
 860                          * record which hasn't had a matching index, that's
 861                          * ok; it just becomes a cfentry like any other.
 862                          */
 863
 864                         /*
 865                          * if the index in the cis differs from the default
 866                          * cis, create new entry in the queue and start it
 867                          * with the current default
 868                          */
 869                         if (num != state->default_cfe->number) {
 870                                 cfe = (struct pccard_config_entry *)
 871                                     malloc(sizeof(*cfe), M_DEVBUF, M_NOWAIT);
 872
 873                                 *cfe = *state->default_cfe;
 874
 875                                 STAILQ_INSERT_TAIL(&state->pf->cfe_head,
 876                                     cfe, cfe_list);
 877
 878                                 cfe->number = num;
 879
 880                                 /*
 881                                  * if the default bit is set in the cis, then
 882                                  * point the new default at whatever is being
 883                                  * filled in
 884                                  */
 885                                 if (def)
 886                                         state->default_cfe = cfe;
 887                         } else {
 888                                 /*
 889                                  * the cis index matches the default index,
 890                                  * fill in the default cfentry.  It is
 891                                  * assumed that the cfdefault index is in the
 892                                  * queue.  For it to be otherwise, the cis
 893                                  * index would have to be -1 (initial
 894                                  * condition) which is not possible, or there
 895                                  * would have to be a preceding cis entry
 896                                  * which had the same cis index and had the
 897                                  * default bit unset. Neither condition
 898                                  * should happen.  If it does, this cfentry
 899                                  * is lost (written into temp space), which
 900                                  * is an acceptable failure mode.
 901                                  */
 902
 903                                 cfe = state->default_cfe;
 904
 905                                 /*
 906                                  * if the cis entry does not have the default
 907                                  * bit set, copy the default out of the way
 908                                  * first.
 909                                  */
 910                                 if (!def) {
 911                                         state->temp_cfe = *state->default_cfe;
 912                                         state->default_cfe = &state->temp_cfe;
 913                                 }
 914                         }
 915
 916                         if (intface) {
 917                                 reg = pccard_tuple_read_1(tuple, idx);
 918                                 idx++;
 919                                 if (reg & PCCARD_TPCE_IF_MWAIT)
 920                                         cfe->flags |= PCCARD_CFE_MWAIT_REQUIRED;
 921                                 if (reg & PCCARD_TPCE_IF_RDYBSY)
 922                                         cfe->flags |= PCCARD_CFE_RDYBSY_ACTIVE;
 923                                 if (reg & PCCARD_TPCE_IF_WP)
 924                                         cfe->flags |= PCCARD_CFE_WP_ACTIVE;
 925                                 if (reg & PCCARD_TPCE_IF_BVD)
 926                                         cfe->flags |= PCCARD_CFE_BVD_ACTIVE;
 927                                 cfe->iftype = reg & PCCARD_TPCE_IF_IFTYPE;
 928                         }
 929                         reg = pccard_tuple_read_1(tuple, idx);
 930                         idx++;
 931
 932                         power = reg & PCCARD_TPCE_FS_POWER_MASK;
 933                         timing = reg & PCCARD_TPCE_FS_TIMING;
 934                         iospace = reg & PCCARD_TPCE_FS_IOSPACE;
 935                         irq = reg & PCCARD_TPCE_FS_IRQ;
 936                         memspace = reg & PCCARD_TPCE_FS_MEMSPACE_MASK;
 937                         misc = reg & PCCARD_TPCE_FS_MISC;
 938
 939                         if (power) {
 940                                 /* skip over power, don't save */
 941                                 /* for each parameter selection byte */
 942                                 for (i = 0; i < power; i++) {
 943                                         reg = pccard_tuple_read_1(tuple, idx);
 944                                         idx++;
 945                                         /* for each bit */
 946                                         for (j = 0; j < 7; j++) {
 947                                                 /* if the bit is set */
 948                                                 if ((reg >> j) & 0x01) {
 949                                                         /* skip over bytes */
 950                                                         do {
 951                                                                 reg2 = pccard_tuple_read_1(tuple, idx);
 952                                                                 idx++;
 953                                                                 /*
 954                                                                  * until
 955                                                                  * non-extensi
 956                                                                  * on byte
 957                                                                  */
 958                                                         } while (reg2 & 0x80);
 959                                                 }
 960                                         }
 961                                 }
 962                         }
 963                         if (timing) {
 964                                 /* skip over timing, don't save */
 965                                 reg = pccard_tuple_read_1(tuple, idx);
 966                                 idx++;
 967
 968                                 if ((reg & PCCARD_TPCE_TD_RESERVED_MASK) !=
 969                                     PCCARD_TPCE_TD_RESERVED_MASK)
 970                                         idx++;
 971                                 if ((reg & PCCARD_TPCE_TD_RDYBSY_MASK) !=
 972                                     PCCARD_TPCE_TD_RDYBSY_MASK)
 973                                         idx++;
 974                                 if ((reg & PCCARD_TPCE_TD_WAIT_MASK) !=
 975                                     PCCARD_TPCE_TD_WAIT_MASK)
 976                                         idx++;
 977                         }
 978                         if (iospace) {
 979                                 if (tuple->length <= idx) {
 980                                         DPRINTF(("ran out of space before TCPE_IO\n"));
 981                                         goto abort_cfe;
 982                                 }
 983
 984                                 reg = pccard_tuple_read_1(tuple, idx);
 985                                 idx++;
 986
 987                                 if (reg & PCCARD_TPCE_IO_BUSWIDTH_8BIT)
 988                                         cfe->flags |= PCCARD_CFE_IO8;
 989                                 if (reg & PCCARD_TPCE_IO_BUSWIDTH_16BIT)
 990                                         cfe->flags |= PCCARD_CFE_IO16;
 991                                 cfe->iomask =
 992                                     reg & PCCARD_TPCE_IO_IOADDRLINES_MASK;
 993
 994                                 if (reg & PCCARD_TPCE_IO_HASRANGE) {
 995                                         reg = pccard_tuple_read_1(tuple, idx);
 996                                         idx++;
 997
 998                                         cfe->num_iospace = 1 + (reg &
 999                                             PCCARD_TPCE_IO_RANGE_COUNT);
1000
1001                                         if (cfe->num_iospace >
1002                                             (sizeof(cfe->iospace) /
1003                                              sizeof(cfe->iospace[0]))) {
1004                                                 DPRINTF(("too many io "
1005                                                     "spaces %d",
1006                                                     cfe->num_iospace));
1007                                                 state->card->error++;
1008                                                 break;
1009                                         }
1010                                         for (i = 0; i < cfe->num_iospace; i++) {
1011                                                 switch (reg & PCCARD_TPCE_IO_RANGE_ADDRSIZE_MASK) {
1012                                                 case PCCARD_TPCE_IO_RANGE_ADDRSIZE_ONE:
1013                                                         cfe->iospace[i].start =
1014                                                                 pccard_tuple_read_1(tuple, idx);
1015                                                         idx++;
1016                                                         break;
1017                                                 case PCCARD_TPCE_IO_RANGE_ADDRSIZE_TWO:
1018                                                         cfe->iospace[i].start =
1019                                                                 pccard_tuple_read_2(tuple, idx);
1020                                                         idx += 2;
1021                                                         break;
1022                                                 case PCCARD_TPCE_IO_RANGE_ADDRSIZE_FOUR:
1023                                                         cfe->iospace[i].start =
1024                                                                 pccard_tuple_read_4(tuple, idx);
1025                                                         idx += 4;
1026                                                         break;
1027                                                 }
1028                                                 switch (reg &
1029                                                         PCCARD_TPCE_IO_RANGE_LENGTHSIZE_MASK) {
1030                                                 case PCCARD_TPCE_IO_RANGE_LENGTHSIZE_ONE:
1031                                                         cfe->iospace[i].length =
1032                                                                 pccard_tuple_read_1(tuple, idx);
1033                                                         idx++;
1034                                                         break;
1035                                                 case PCCARD_TPCE_IO_RANGE_LENGTHSIZE_TWO:
1036                                                         cfe->iospace[i].length =
1037                                                                 pccard_tuple_read_2(tuple, idx);
1038                                                         idx += 2;
1039                                                         break;
1040                                                 case PCCARD_TPCE_IO_RANGE_LENGTHSIZE_FOUR:
1041                                                         cfe->iospace[i].length =
1042                                                                 pccard_tuple_read_4(tuple, idx);
1043                                                         idx += 4;
1044                                                         break;
1045                                                 }
1046                                                 cfe->iospace[i].length++;
1047                                         }
1048                                 } else {
1049                                         cfe->num_iospace = 1;
1050                                         cfe->iospace[0].start = 0;
1051                                         cfe->iospace[0].length =
1052                                             (1 << cfe->iomask);
1053                                 }
1054                         }
1055                         if (irq) {
1056                                 if (tuple->length <= idx) {
1057                                         DPRINTF(("ran out of space before TCPE_IR\n"));
1058                                         goto abort_cfe;
1059                                 }
1060
1061                                 reg = pccard_tuple_read_1(tuple, idx);
1062                                 idx++;
1063
1064                                 if (reg & PCCARD_TPCE_IR_SHARE)
1065                                         cfe->flags |= PCCARD_CFE_IRQSHARE;
1066                                 if (reg & PCCARD_TPCE_IR_PULSE)
1067                                         cfe->flags |= PCCARD_CFE_IRQPULSE;
1068                                 if (reg & PCCARD_TPCE_IR_LEVEL)
1069                                         cfe->flags |= PCCARD_CFE_IRQLEVEL;
1070
1071                                 if (reg & PCCARD_TPCE_IR_HASMASK) {
1072                                         /*
1073                                          * it's legal to ignore the
1074                                          * special-interrupt bits, so I will
1075                                          */
1076
1077                                         cfe->irqmask =
1078                                             pccard_tuple_read_2(tuple, idx);
1079                                         idx += 2;
1080                                 } else {
1081                                         cfe->irqmask =
1082                                             (1 << (reg & PCCARD_TPCE_IR_IRQ));
1083                                 }
1084                         }
1085                         if (memspace) {
1086                                 if (tuple->length <= idx) {
1087                                         DPRINTF(("ran out of space before TCPE_MS\n"));
1088                                         goto abort_cfe;
1089                                 }
1090
1091                                 if (memspace == PCCARD_TPCE_FS_MEMSPACE_NONE) {
1092                                         cfe->num_memspace = 0;
1093                                 } else if (memspace == PCCARD_TPCE_FS_MEMSPACE_LENGTH) {
1094                                         cfe->num_memspace = 1;
1095                                         cfe->memspace[0].length = 256 *
1096                                             pccard_tuple_read_2(tuple, idx);
1097                                         idx += 2;
1098                                         cfe->memspace[0].cardaddr = 0;
1099                                         cfe->memspace[0].hostaddr = 0;
1100                                 } else if (memspace ==
1101                                     PCCARD_TPCE_FS_MEMSPACE_LENGTHADDR) {
1102                                         cfe->num_memspace = 1;
1103                                         cfe->memspace[0].length = 256 *
1104                                             pccard_tuple_read_2(tuple, idx);
1105                                         idx += 2;
1106                                         cfe->memspace[0].cardaddr = 256 *
1107                                             pccard_tuple_read_2(tuple, idx);
1108                                         idx += 2;
1109                                         cfe->memspace[0].hostaddr = cfe->memspace[0].cardaddr;
1110                                 } else {
1111                                         int lengthsize;
1112                                         int cardaddrsize;
1113                                         int hostaddrsize;
1114
1115                                         reg = pccard_tuple_read_1(tuple, idx);
1116                                         idx++;
1117
1118                                         cfe->num_memspace = (reg &
1119                                             PCCARD_TPCE_MS_COUNT) + 1;
1120
1121                                         if (cfe->num_memspace >
1122                                             (sizeof(cfe->memspace) /
1123                                              sizeof(cfe->memspace[0]))) {
1124                                                 DPRINTF(("too many mem "
1125                                                     "spaces %d",
1126                                                     cfe->num_memspace));
1127                                                 state->card->error++;
1128                                                 break;
1129                                         }
1130                                         lengthsize =
1131                                                 ((reg & PCCARD_TPCE_MS_LENGTH_SIZE_MASK) >>
1132                                                  PCCARD_TPCE_MS_LENGTH_SIZE_SHIFT);
1133                                         cardaddrsize =
1134                                                 ((reg & PCCARD_TPCE_MS_CARDADDR_SIZE_MASK) >>
1135                                                  PCCARD_TPCE_MS_CARDADDR_SIZE_SHIFT);
1136                                         hostaddrsize =
1137                                                 (reg & PCCARD_TPCE_MS_HOSTADDR) ? cardaddrsize : 0;
1138
1139                                         if (lengthsize == 0) {
1140                                                 DPRINTF(("cfe memspace "
1141                                                     "lengthsize == 0"));
1142                                                 state->card->error++;
1143                                         }
1144                                         for (i = 0; i < cfe->num_memspace; i++) {
1145                                                 if (lengthsize) {
1146                                                         cfe->memspace[i].length =
1147                                                                 256 * pccard_tuple_read_n(tuple, lengthsize,
1148                                                                        idx);
1149                                                         idx += lengthsize;
1150                                                 } else {
1151                                                         cfe->memspace[i].length = 0;
1152                                                 }
1153                                                 if (cfe->memspace[i].length == 0) {
1154                                                         DPRINTF(("cfe->memspace[%d].length == 0",
1155                                                                  i));
1156                                                         state->card->error++;
1157                                                 }
1158                                                 if (cardaddrsize) {
1159                                                         cfe->memspace[i].cardaddr =
1160                                                                 256 * pccard_tuple_read_n(tuple, cardaddrsize,
1161                                                                        idx);
1162                                                         idx += cardaddrsize;
1163                                                 } else {
1164                                                         cfe->memspace[i].cardaddr = 0;
1165                                                 }
1166                                                 if (hostaddrsize) {
1167                                                         cfe->memspace[i].hostaddr =
1168                                                                 256 * pccard_tuple_read_n(tuple, hostaddrsize,
1169                                                                        idx);
1170                                                         idx += hostaddrsize;
1171                                                 } else {
1172                                                         cfe->memspace[i].hostaddr = 0;
1173                                                 }
1174                                         }
1175                                 }
1176                         }
1177                         if (misc) {
1178                                 if (tuple->length <= idx) {
1179                                         DPRINTF(("ran out of space before TCPE_MI\n"));
1180                                         goto abort_cfe;
1181                                 }
1182
1183                                 reg = pccard_tuple_read_1(tuple, idx);
1184                                 idx++;
1185
1186                                 if (reg & PCCARD_TPCE_MI_PWRDOWN)
1187                                         cfe->flags = PCCARD_CFE_POWERDOWN;
1188                                 if (reg & PCCARD_TPCE_MI_READONLY)
1189                                         cfe->flags = PCCARD_CFE_READONLY;
1190                                 if (reg & PCCARD_TPCE_MI_AUDIO)
1191                                         cfe->flags = PCCARD_CFE_AUDIO;
1192                                 cfe->maxtwins = reg & PCCARD_TPCE_MI_MAXTWINS;
1193
1194                                 while (reg & PCCARD_TPCE_MI_EXT) {
1195                                         reg = pccard_tuple_read_1(tuple, idx);
1196                                         idx++;
1197                                 }
1198                         }
1199                         /* skip all the subtuples */
1200                 }
1201
1202         abort_cfe:
1203                 DPRINTF(("CISTPL_CFTABLE_ENTRY\n"));
1204                 break;
1205         default:
1206                 DPRINTF(("unhandled CISTPL %x\n", tuple->code));
1207                 break;
1208         }
1209
1210         return (0);
1211 }