sys/bus/pccard/pccard_cis.c

   1 /* $NetBSD: pcmcia_cis.c,v 1.17 2000/02/10 09:01:52 chopps Exp $ */
   2 /* $FreeBSD: src/sys/dev/pccard/pccard_cis.c,v 1.23 2002/11/14 14:02:32 mux Exp $ */
   3 /* $DragonFly: src/sys/bus/pccard/pccard_cis.c,v 1.2 2004/03/15 17:15:18 dillon Exp $ */
   4
   5 /*
   6  * Copyright (c) 1997 Marc Horowitz.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by Marc Horowitz.
  19  * 4. The name of the author may not be used to endorse or promote products
  20  *    derived from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <sys/param.h>
  35 #include <sys/systm.h>
  36 #include <sys/malloc.h>
  37 #include <sys/module.h>
  38 #include <sys/kernel.h>
  39 #include <sys/queue.h>
  40 #include <sys/types.h>
  41
  42 #include <sys/bus.h>
  43 #include <machine/bus.h>
  44 #include <sys/rman.h>
  45 #include <machine/resource.h>
  46
  47 #include <bus/pccard/pccardreg.h>
  48 #include <bus/pccard/pccardvar.h>
  49
  50 #include "card_if.h"
  51
  52 extern int      pccard_cis_debug;
  53
  54 #define PCCARDCISDEBUG
  55 #ifdef PCCARDCISDEBUG
  56 #define DPRINTF(arg) if (pccard_cis_debug) printf arg
  57 #define DEVPRINTF(arg) if (pccard_cis_debug) device_printf arg
  58 #else
  59 #define DPRINTF(arg)
  60 #define DEVPRINTF(arg)
  61 #endif
  62
  63 #define PCCARD_CIS_SIZE         1024
  64
  65 struct cis_state {
  66         int     count;
  67         int     gotmfc;
  68         struct pccard_config_entry temp_cfe;
  69         struct pccard_config_entry *default_cfe;
  70         struct pccard_card *card;
  71         struct pccard_function *pf;
  72 };
  73
  74 int     pccard_parse_cis_tuple(struct pccard_tuple *, void *);
  75 static int decode_funce(struct pccard_tuple *, struct pccard_function *);
  76
  77 void
  78 pccard_read_cis(struct pccard_softc *sc)
  79 {
  80         struct cis_state state;
  81
  82         bzero(&state, sizeof state);
  83
  84         state.card = &sc->card;
  85
  86         state.card->error = 0;
  87         state.card->cis1_major = -1;
  88         state.card->cis1_minor = -1;
  89         state.card->cis1_info[0] = NULL;
  90         state.card->cis1_info[1] = NULL;
  91         state.card->cis1_info[2] = NULL;
  92         state.card->cis1_info[3] = NULL;
  93         state.card->manufacturer = PCMCIA_VENDOR_INVALID;
  94         state.card->product = PCMCIA_PRODUCT_INVALID;
  95         STAILQ_INIT(&state.card->pf_head);
  96
  97         state.pf = NULL;
  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                                 tuple.ptr++;
 173                                 break;
 174                         }
 175                         /* now all the normal tuples */
 176
 177                         tuple.length = pccard_cis_read_1(&tuple, tuple.ptr + 1);
 178                         switch (tuple.code) {
 179                         case PCCARD_CISTPL_LONGLINK_A:
 180                         case PCCARD_CISTPL_LONGLINK_C:
 181                                 if (tuple.length < 4) {
 182                                         DPRINTF(("CISTPL_LONGLINK_%s too "
 183                                             "short %d\n",
 184                                             longlink_common ? "C" : "A",
 185                                             tuple.length));
 186                                         break;
 187                                 }
 188                                 longlink_present = 1;
 189                                 longlink_common = (tuple.code ==
 190                                     PCCARD_CISTPL_LONGLINK_C) ? 1 : 0;
 191                                 longlink_addr = pccard_tuple_read_4(&tuple, 0);
 192                                 DPRINTF(("CISTPL_LONGLINK_%s %lx\n",
 193                                     longlink_common ? "C" : "A",
 194                                     longlink_addr));
 195                                 break;
 196                         case PCCARD_CISTPL_NO_LINK:
 197                                 longlink_present = 0;
 198                                 DPRINTF(("CISTPL_NO_LINK\n"));
 199                                 break;
 200                         case PCCARD_CISTPL_CHECKSUM:
 201                                 if (tuple.length < 5) {
 202                                         DPRINTF(("CISTPL_CHECKSUM too "
 203                                             "short %d\n", tuple.length));
 204                                         break;
 205                                 } {
 206                                         int16_t offset;
 207                                         u_long addr, length;
 208                                         u_int cksum, sum;
 209                                         int i;
 210
 211                                         offset = (uint16_t)
 212                                             pccard_tuple_read_2(&tuple, 0);
 213                                         length = pccard_tuple_read_2(&tuple, 2);
 214                                         cksum = pccard_tuple_read_1(&tuple, 4);
 215
 216                                         addr = tuple.ptr + offset;
 217
 218                                         DPRINTF(("CISTPL_CHECKSUM addr=%lx "
 219                                             "len=%lx cksum=%x",
 220                                             addr, length, cksum));
 221
 222                                         /*
 223                                          * XXX do more work to deal with
 224                                          * distant regions
 225                                          */
 226                                         if ((addr >= PCCARD_CIS_SIZE) ||
 227                                             ((addr + length) >=
 228                                             PCCARD_CIS_SIZE)) {
 229                                                 DPRINTF((" skipped, "
 230                                                     "too distant\n"));
 231                                                 break;
 232                                         }
 233                                         sum = 0;
 234                                         for (i = 0; i < length; i++)
 235                                                 sum +=
 236                                                     bus_space_read_1(tuple.memt,
 237                                                     tuple.memh,
 238                                                     addr + tuple.mult * i);
 239                                         if (cksum != (sum & 0xff)) {
 240                                                 DPRINTF((" failed sum=%x\n",
 241                                                     sum));
 242                                                 device_printf(dev,
 243                                                     "CIS checksum failed\n");
 244 #if 0
 245                                                 /*
 246                                                  * XXX Some working cards have
 247                                                  * XXX bad checksums!!
 248                                                  */
 249                                                 ret = -1;
 250 #endif
 251                                         } else {
 252                                                 DPRINTF((" ok\n"));
 253                                         }
 254                                 }
 255                                 break;
 256                         case PCCARD_CISTPL_LONGLINK_MFC:
 257                                 if (tuple.length < 1) {
 258                                         DPRINTF(("CISTPL_LONGLINK_MFC too "
 259                                             "short %d\n", tuple.length));
 260                                         break;
 261                                 }
 262                                 if (((tuple.length - 1) % 5) != 0) {
 263                                         DPRINTF(("CISTPL_LONGLINK_MFC bogus "
 264                                             "length %d\n", tuple.length));
 265                                         break;
 266                                 }
 267                                 /*
 268                                  * this is kind of ad hoc, as I don't have
 269                                  * any real documentation
 270                                  */
 271                                 {
 272                                         int i, tmp_count;
 273
 274                                         /*
 275                                          * put count into tmp var so that
 276                                          * if we have to bail (because it's
 277                                          * a bogus count) it won't be
 278                                          * remembered for later use.
 279                                          */
 280                                         tmp_count =
 281                                             pccard_tuple_read_1(&tuple, 0);
 282
 283                                         DPRINTF(("CISTPL_LONGLINK_MFC %d",
 284                                             tmp_count));
 285
 286                                         /*
 287                                          * make _sure_ it's the right size;
 288                                          * if too short, it may be a weird
 289                                          * (unknown/undefined) format
 290                                          */
 291                                         if (tuple.length != (tmp_count*5 + 1)) {
 292                                                 DPRINTF((" bogus length %d\n",
 293                                                     tuple.length));
 294                                                 break;
 295                                         }
 296                                         /*
 297                                          * sanity check for a programming
 298                                          * error which is difficult to find
 299                                          * when debugging.
 300                                          */
 301                                         if (tmp_count >
 302                                             howmany(sizeof mfc, sizeof mfc[0]))
 303                                                 panic("CISTPL_LONGLINK_MFC mfc "
 304                                                     "count would blow stack");
 305                                         mfc_count = tmp_count;
 306                                         for (i = 0; i < mfc_count; i++) {
 307                                                 mfc[i].common =
 308                                                     (pccard_tuple_read_1(&tuple,
 309                                                     1 + 5 * i) ==
 310                                                     PCCARD_MFC_MEM_COMMON) ?
 311                                                     1 : 0;
 312                                                 mfc[i].addr =
 313                                                     pccard_tuple_read_4(&tuple,
 314                                                     1 + 5 * i + 1);
 315                                                 DPRINTF((" %s:%lx",
 316                                                     mfc[i].common ? "common" :
 317                                                     "attr", mfc[i].addr));
 318                                         }
 319                                         DPRINTF(("\n"));
 320                                 }
 321                                 /*
 322                                  * for LONGLINK_MFC, fall through to the
 323                                  * function.  This tuple has structural and
 324                                  * semantic content.
 325                                  */
 326                         default:
 327                                 {
 328                                         if ((*fct) (&tuple, arg)) {
 329                                                 ret = 1;
 330                                                 goto done;
 331                                         }
 332                                 }
 333                                 break;
 334                         }       /* switch */
 335 #ifdef PCCARDCISDEBUG
 336                         /* print the tuple */
 337                         {
 338                                 int i;
 339
 340                                 DPRINTF((" %02x %02x", tuple.code,
 341                                     tuple.length));
 342
 343                                 for (i = 0; i < tuple.length; i++) {
 344                                         DPRINTF((" %02x",
 345                                             pccard_tuple_read_1(&tuple, i)));
 346                                         if ((i % 16) == 13)
 347                                                 DPRINTF(("\n"));
 348                                 }
 349
 350                                 if ((i % 16) != 14)
 351                                         DPRINTF(("\n"));
 352                         }
 353 #endif
 354                         /* skip to the next tuple */
 355                         tuple.ptr += 2 + tuple.length;
 356                 }
 357
 358                 /*
 359                  * the chain is done.  Clean up and move onto the next one,
 360                  * if any.  The loop is here in the case that there is an MFC
 361                  * card with no longlink (which defaults to existing, == 0).
 362                  * In general, this means that if one pointer fails, it will
 363                  * try the next one, instead of just bailing.
 364                  */
 365
 366                 while (1) {
 367                         if (longlink_present) {
 368                                 CARD_SET_RES_FLAGS(device_get_parent(dev), dev,
 369                                     SYS_RES_MEMORY, rid, longlink_common ?
 370                                     PCCARD_A_MEM_COM : PCCARD_A_MEM_ATTR);
 371                                 DPRINTF(("cis mem map %x\n",
 372                                     (unsigned int) tuple.memh));
 373                                 tuple.mult = longlink_common ? 1 : 2;
 374                                 tuple.ptr = longlink_addr;
 375                                 longlink_present = 0;
 376                                 longlink_common = 1;
 377                                 longlink_addr = 0;
 378                         } else if (mfc_count && (mfc_index < mfc_count)) {
 379                                 CARD_SET_RES_FLAGS(device_get_parent(dev), dev,
 380                                     SYS_RES_MEMORY, rid, mfc[mfc_index].common
 381                                     ? PCCARD_A_MEM_COM : PCCARD_A_MEM_ATTR);
 382                                 DPRINTF(("cis mem map %x\n",
 383                                     (unsigned int) tuple.memh));
 384                                 /* set parse state, and point at the next one */
 385                                 tuple.mult = mfc[mfc_index].common ? 1 : 2;
 386                                 tuple.ptr = mfc[mfc_index].addr;
 387                                 mfc_index++;
 388                         } else {
 389                                 goto done;
 390                         }
 391
 392                         /* make sure that the link is valid */
 393                         tuple.code = pccard_cis_read_1(&tuple, tuple.ptr);
 394                         if (tuple.code != PCCARD_CISTPL_LINKTARGET) {
 395                                 DPRINTF(("CISTPL_LINKTARGET expected, "
 396                                     "code %02x observed\n", tuple.code));
 397                                 continue;
 398                         }
 399                         tuple.length = pccard_cis_read_1(&tuple, tuple.ptr + 1);
 400                         if (tuple.length < 3) {
 401                                 DPRINTF(("CISTPL_LINKTARGET too short %d\n",
 402                                     tuple.length));
 403                                 continue;
 404                         }
 405                         if ((pccard_tuple_read_1(&tuple, 0) != 'C') ||
 406                             (pccard_tuple_read_1(&tuple, 1) != 'I') ||
 407                             (pccard_tuple_read_1(&tuple, 2) != 'S')) {
 408                                 DPRINTF(("CISTPL_LINKTARGET magic "
 409                                     "%02x%02x%02x incorrect\n",
 410                                     pccard_tuple_read_1(&tuple, 0),
 411                                     pccard_tuple_read_1(&tuple, 1),
 412                                     pccard_tuple_read_1(&tuple, 2)));
 413                                 continue;
 414                         }
 415                         tuple.ptr += 2 + tuple.length;
 416                         break;
 417                 }
 418         }
 419
 420 done:
 421         bus_release_resource(dev, SYS_RES_MEMORY, rid, res);
 422
 423         return (ret);
 424 }
 425
 426 /* XXX this is incredibly verbose.  Not sure what trt is */
 427
 428 void
 429 pccard_print_cis(device_t dev)
 430 {
 431         struct pccard_softc *sc = PCCARD_SOFTC(dev);
 432         struct pccard_card *card = &sc->card;
 433         struct pccard_function *pf;
 434         struct pccard_config_entry *cfe;
 435         int i;
 436
 437         device_printf(dev, "CIS version ");
 438         if (card->cis1_major == 4) {
 439                 if (card->cis1_minor == 0)
 440                         printf("PCCARD 1.0\n");
 441                 else if (card->cis1_minor == 1)
 442                         printf("PCCARD 2.0 or 2.1\n");
 443         } else if (card->cis1_major >= 5)
 444                 printf("PC Card Standard %d.%d\n", card->cis1_major, card->cis1_minor);
 445         else
 446                 printf("unknown (major=%d, minor=%d)\n",
 447                     card->cis1_major, card->cis1_minor);
 448
 449         device_printf(dev, "CIS info: ");
 450         for (i = 0; i < 4; i++) {
 451                 if (card->cis1_info[i] == NULL)
 452                         break;
 453                 if (i)
 454                         printf(", ");
 455                 printf("%s", card->cis1_info[i]);
 456         }
 457         printf("\n");
 458
 459         device_printf(dev, "Manufacturer code 0x%x, product 0x%x\n",
 460             card->manufacturer, card->product);
 461
 462         STAILQ_FOREACH(pf, &card->pf_head, pf_list) {
 463                 device_printf(dev, "function %d: ", pf->number);
 464
 465                 switch (pf->function) {
 466                 case PCCARD_FUNCTION_UNSPEC:
 467                         printf("unspecified");
 468                         break;
 469                 case PCCARD_FUNCTION_MULTIFUNCTION:
 470                         printf("multi-function");
 471                         break;
 472                 case PCCARD_FUNCTION_MEMORY:
 473                         printf("memory");
 474                         break;
 475                 case PCCARD_FUNCTION_SERIAL:
 476                         printf("serial port");
 477                         break;
 478                 case PCCARD_FUNCTION_PARALLEL:
 479                         printf("parallel port");
 480                         break;
 481                 case PCCARD_FUNCTION_DISK:
 482                         printf("fixed disk");
 483                         break;
 484                 case PCCARD_FUNCTION_VIDEO:
 485                         printf("video adapter");
 486                         break;
 487                 case PCCARD_FUNCTION_NETWORK:
 488                         printf("network adapter");
 489                         break;
 490                 case PCCARD_FUNCTION_AIMS:
 491                         printf("auto incrementing mass storage");
 492                         break;
 493                 case PCCARD_FUNCTION_SCSI:
 494                         printf("SCSI bridge");
 495                         break;
 496                 case PCCARD_FUNCTION_SECURITY:
 497                         printf("Security services");
 498                         break;
 499                 case PCCARD_FUNCTION_INSTRUMENT:
 500                         printf("Instrument");
 501                         break;
 502                 default:
 503                         printf("unknown (%d)", pf->function);
 504                         break;
 505                 }
 506
 507                 printf(", ccr addr %x mask %x\n", pf->ccr_base, pf->ccr_mask);
 508
 509                 STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
 510                         device_printf(dev, "function %d, config table entry "
 511                             "%d: ", pf->number, cfe->number);
 512
 513                         switch (cfe->iftype) {
 514                         case PCCARD_IFTYPE_MEMORY:
 515                                 printf("memory card");
 516                                 break;
 517                         case PCCARD_IFTYPE_IO:
 518                                 printf("I/O card");
 519                                 break;
 520                         default:
 521                                 printf("card type unknown");
 522                                 break;
 523                         }
 524
 525                         printf("; irq mask %x", cfe->irqmask);
 526
 527                         if (cfe->num_iospace) {
 528                                 printf("; iomask %lx, iospace", cfe->iomask);
 529
 530                                 for (i = 0; i < cfe->num_iospace; i++) {
 531                                         printf(" %lx", cfe->iospace[i].start);
 532                                         if (cfe->iospace[i].length)
 533                                                 printf("-%lx",
 534                                                     cfe->iospace[i].start +
 535                                                     cfe->iospace[i].length - 1);
 536                                 }
 537                         }
 538                         if (cfe->num_memspace) {
 539                                 printf("; memspace");
 540
 541                                 for (i = 0; i < cfe->num_memspace; i++) {
 542                                         printf(" %lx",
 543                                             cfe->memspace[i].cardaddr);
 544                                         if (cfe->memspace[i].length)
 545                                                 printf("-%lx",
 546                                                     cfe->memspace[i].cardaddr +
 547                                                     cfe->memspace[i].length - 1);
 548                                         if (cfe->memspace[i].hostaddr)
 549                                                 printf("@%lx",
 550                                                     cfe->memspace[i].hostaddr);
 551                                 }
 552                         }
 553                         if (cfe->maxtwins)
 554                                 printf("; maxtwins %d", cfe->maxtwins);
 555
 556                         printf(";");
 557
 558                         if (cfe->flags & PCCARD_CFE_MWAIT_REQUIRED)
 559                                 printf(" mwait_required");
 560                         if (cfe->flags & PCCARD_CFE_RDYBSY_ACTIVE)
 561                                 printf(" rdybsy_active");
 562                         if (cfe->flags & PCCARD_CFE_WP_ACTIVE)
 563                                 printf(" wp_active");
 564                         if (cfe->flags & PCCARD_CFE_BVD_ACTIVE)
 565                                 printf(" bvd_active");
 566                         if (cfe->flags & PCCARD_CFE_IO8)
 567                                 printf(" io8");
 568                         if (cfe->flags & PCCARD_CFE_IO16)
 569                                 printf(" io16");
 570                         if (cfe->flags & PCCARD_CFE_IRQSHARE)
 571                                 printf(" irqshare");
 572                         if (cfe->flags & PCCARD_CFE_IRQPULSE)
 573                                 printf(" irqpulse");
 574                         if (cfe->flags & PCCARD_CFE_IRQLEVEL)
 575                                 printf(" irqlevel");
 576                         if (cfe->flags & PCCARD_CFE_POWERDOWN)
 577                                 printf(" powerdown");
 578                         if (cfe->flags & PCCARD_CFE_READONLY)
 579                                 printf(" readonly");
 580                         if (cfe->flags & PCCARD_CFE_AUDIO)
 581                                 printf(" audio");
 582
 583                         printf("\n");
 584                 }
 585         }
 586
 587         if (card->error)
 588                 device_printf(dev, "%d errors found while parsing CIS\n",
 589                     card->error);
 590 }
 591
 592 int
 593 pccard_parse_cis_tuple(struct pccard_tuple *tuple, void *arg)
 594 {
 595         /* most of these are educated guesses */
 596         static struct pccard_config_entry init_cfe = {
 597                 -1, PCCARD_CFE_RDYBSY_ACTIVE | PCCARD_CFE_WP_ACTIVE |
 598                 PCCARD_CFE_BVD_ACTIVE, PCCARD_IFTYPE_MEMORY,
 599         };
 600
 601         struct cis_state *state = arg;
 602
 603         switch (tuple->code) {
 604         case PCCARD_CISTPL_END:
 605                 /* if we've seen a LONGLINK_MFC, and this is the first
 606                  * END after it, reset the function list.
 607                  *
 608                  * XXX This might also be the right place to start a
 609                  * new function, but that assumes that a function
 610                  * definition never crosses any longlink, and I'm not
 611                  * sure about that.  This is probably safe for MFC
 612                  * cards, but what we have now isn't broken, so I'd
 613                  * rather not change it.
 614                  */
 615                 if (state->gotmfc == 1) {
 616                         struct pccard_function *pf, *pfnext;
 617
 618                         for (pf = STAILQ_FIRST(&state->card->pf_head);
 619                              pf != NULL; pf = pfnext) {
 620                                 pfnext = STAILQ_NEXT(pf, pf_list);
 621                                 free(pf, M_DEVBUF);
 622                         }
 623
 624                         STAILQ_INIT(&state->card->pf_head);
 625
 626                         state->count = 0;
 627                         state->gotmfc = 2;
 628                         state->pf = NULL;
 629                 }
 630                 break;
 631         case PCCARD_CISTPL_LONGLINK_MFC:
 632                 /*
 633                  * this tuple's structure was dealt with in scan_cis.  here,
 634                  * record the fact that the MFC tuple was seen, so that
 635                  * functions declared before the MFC link can be cleaned
 636                  * up.
 637                  */
 638                 state->gotmfc = 1;
 639                 break;
 640 #ifdef PCCARDCISDEBUG
 641         case PCCARD_CISTPL_DEVICE:
 642         case PCCARD_CISTPL_DEVICE_A:
 643                 {
 644                         u_int reg, dtype, dspeed;
 645
 646                         reg = pccard_tuple_read_1(tuple, 0);
 647                         dtype = reg & PCCARD_DTYPE_MASK;
 648                         dspeed = reg & PCCARD_DSPEED_MASK;
 649
 650                         DPRINTF(("CISTPL_DEVICE%s type=",
 651                         (tuple->code == PCCARD_CISTPL_DEVICE) ? "" : "_A"));
 652                         switch (dtype) {
 653                         case PCCARD_DTYPE_NULL:
 654                                 DPRINTF(("null"));
 655                                 break;
 656                         case PCCARD_DTYPE_ROM:
 657                                 DPRINTF(("rom"));
 658                                 break;
 659                         case PCCARD_DTYPE_OTPROM:
 660                                 DPRINTF(("otprom"));
 661                                 break;
 662                         case PCCARD_DTYPE_EPROM:
 663                                 DPRINTF(("eprom"));
 664                                 break;
 665                         case PCCARD_DTYPE_EEPROM:
 666                                 DPRINTF(("eeprom"));
 667                                 break;
 668                         case PCCARD_DTYPE_FLASH:
 669                                 DPRINTF(("flash"));
 670                                 break;
 671                         case PCCARD_DTYPE_SRAM:
 672                                 DPRINTF(("sram"));
 673                                 break;
 674                         case PCCARD_DTYPE_DRAM:
 675                                 DPRINTF(("dram"));
 676                                 break;
 677                         case PCCARD_DTYPE_FUNCSPEC:
 678                                 DPRINTF(("funcspec"));
 679                                 break;
 680                         case PCCARD_DTYPE_EXTEND:
 681                                 DPRINTF(("extend"));
 682                                 break;
 683                         default:
 684                                 DPRINTF(("reserved"));
 685                                 break;
 686                         }
 687                         DPRINTF((" speed="));
 688                         switch (dspeed) {
 689                         case PCCARD_DSPEED_NULL:
 690                                 DPRINTF(("null"));
 691                                 break;
 692                         case PCCARD_DSPEED_250NS:
 693                                 DPRINTF(("250ns"));
 694                                 break;
 695                         case PCCARD_DSPEED_200NS:
 696                                 DPRINTF(("200ns"));
 697                                 break;
 698                         case PCCARD_DSPEED_150NS:
 699                                 DPRINTF(("150ns"));
 700                                 break;
 701                         case PCCARD_DSPEED_100NS:
 702                                 DPRINTF(("100ns"));
 703                                 break;
 704                         case PCCARD_DSPEED_EXT:
 705                                 DPRINTF(("ext"));
 706                                 break;
 707                         default:
 708                                 DPRINTF(("reserved"));
 709                                 break;
 710                         }
 711                 }
 712                 DPRINTF(("\n"));
 713                 break;
 714 #endif
 715         case PCCARD_CISTPL_VERS_1:
 716                 if (tuple->length < 6) {
 717                         DPRINTF(("CISTPL_VERS_1 too short %d\n",
 718                             tuple->length));
 719                         break;
 720                 } {
 721                         int start, i, ch, count;
 722
 723                         state->card->cis1_major = pccard_tuple_read_1(tuple, 0);
 724                         state->card->cis1_minor = pccard_tuple_read_1(tuple, 1);
 725
 726                         for (count = 0, start = 0, i = 0;
 727                             (count < 4) && ((i + 4) < 256); i++) {
 728                                 ch = pccard_tuple_read_1(tuple, 2 + i);
 729                                 if (ch == 0xff)
 730                                         break;
 731                                 state->card->cis1_info_buf[i] = ch;
 732                                 if (ch == 0) {
 733                                         state->card->cis1_info[count] =
 734                                             state->card->cis1_info_buf + start;
 735                                         start = i + 1;
 736                                         count++;
 737                                 }
 738                         }
 739                         DPRINTF(("CISTPL_VERS_1\n"));
 740                 }
 741                 break;
 742         case PCCARD_CISTPL_MANFID:
 743                 if (tuple->length < 4) {
 744                         DPRINTF(("CISTPL_MANFID too short %d\n",
 745                             tuple->length));
 746                         break;
 747                 }
 748                 state->card->manufacturer = pccard_tuple_read_2(tuple, 0);
 749                 state->card->product = pccard_tuple_read_2(tuple, 2);
 750                 /*
 751                  * This is for xe driver. But not limited to that driver.
 752                  * In PC Card Standard,
 753                  * Manufacturer ID: 2byte.
 754                  * Product ID: typically 2bytes, but there's no limit on its
 755                  * size.  prodext is a two byte field, so maybe we should
 756                  * also handle the '6' case.  So far no cards have surfaced
 757                  * with a length of '6'.
 758                  */
 759                 if (tuple->length == 5 ) {
 760                         state->card->prodext = pccard_tuple_read_1(tuple, 4);
 761                 }
 762                 DPRINTF(("CISTPL_MANFID\n"));
 763                 break;
 764         case PCCARD_CISTPL_FUNCID:
 765                 if (tuple->length < 1) {
 766                         DPRINTF(("CISTPL_FUNCID too short %d\n",
 767                             tuple->length));
 768                         break;
 769                 }
 770                 if ((state->pf == NULL) || (state->gotmfc == 2)) {
 771                         state->pf = malloc(sizeof(*state->pf), M_DEVBUF,
 772                                             M_INTWAIT | M_ZERO);
 773                         state->pf->number = state->count++;
 774                         state->pf->last_config_index = -1;
 775                         STAILQ_INIT(&state->pf->cfe_head);
 776
 777                         STAILQ_INSERT_TAIL(&state->card->pf_head, state->pf,
 778                             pf_list);
 779                 }
 780                 state->pf->function = pccard_tuple_read_1(tuple, 0);
 781
 782                 DPRINTF(("CISTPL_FUNCID\n"));
 783                 break;
 784         case PCCARD_CISTPL_FUNCE:
 785                 if (state->pf == NULL || state->pf->function <= 0) {
 786                         DPRINTF(("CISTPL_FUNCE is not followed by "
 787                                 "valid CISTPL_FUNCID\n"));
 788                         break;
 789                 }
 790                 if (tuple->length >= 2) {
 791                         decode_funce(tuple, state->pf);
 792                 }
 793                 DPRINTF(("CISTPL_FUNCE\n"));
 794                 break;
 795         case PCCARD_CISTPL_CONFIG:
 796                 if (tuple->length < 3) {
 797                         DPRINTF(("CISTPL_CONFIG too short %d\n",
 798                             tuple->length));
 799                         break;
 800                 } {
 801                         u_int reg, rasz, rmsz, rfsz;
 802                         int i;
 803
 804                         reg = pccard_tuple_read_1(tuple, 0);
 805                         rasz = 1 + ((reg & PCCARD_TPCC_RASZ_MASK) >>
 806                             PCCARD_TPCC_RASZ_SHIFT);
 807                         rmsz = 1 + ((reg & PCCARD_TPCC_RMSZ_MASK) >>
 808                             PCCARD_TPCC_RMSZ_SHIFT);
 809                         rfsz = ((reg & PCCARD_TPCC_RFSZ_MASK) >>
 810                             PCCARD_TPCC_RFSZ_SHIFT);
 811
 812                         if (tuple->length < (rasz + rmsz + rfsz)) {
 813                                 DPRINTF(("CISTPL_CONFIG (%d,%d,%d) too "
 814                                     "short %d\n", rasz, rmsz, rfsz,
 815                                     tuple->length));
 816                                 break;
 817                         }
 818                         if (state->pf == NULL) {
 819                                 state->pf = malloc(sizeof(*state->pf),
 820                                                 M_DEVBUF, M_INTWAIT | M_ZERO);
 821                                 state->pf->number = state->count++;
 822                                 state->pf->last_config_index = -1;
 823                                 STAILQ_INIT(&state->pf->cfe_head);
 824
 825                                 STAILQ_INSERT_TAIL(&state->card->pf_head,
 826                                     state->pf, pf_list);
 827
 828                                 state->pf->function = PCCARD_FUNCTION_UNSPEC;
 829                         }
 830                         state->pf->last_config_index =
 831                             pccard_tuple_read_1(tuple, 1);
 832
 833                         state->pf->ccr_base = 0;
 834                         for (i = 0; i < rasz; i++)
 835                                 state->pf->ccr_base |=
 836                                     ((pccard_tuple_read_1(tuple, 2 + i)) <<
 837                                     (i * 8));
 838
 839                         state->pf->ccr_mask = 0;
 840                         for (i = 0; i < rmsz; i++)
 841                                 state->pf->ccr_mask |=
 842                                     ((pccard_tuple_read_1(tuple,
 843                                     2 + rasz + i)) << (i * 8));
 844
 845                         /* skip the reserved area and subtuples */
 846
 847                         /* reset the default cfe for each cfe list */
 848                         state->temp_cfe = init_cfe;
 849                         state->default_cfe = &state->temp_cfe;
 850                 }
 851                 DPRINTF(("CISTPL_CONFIG\n"));
 852                 break;
 853         case PCCARD_CISTPL_CFTABLE_ENTRY:
 854                 {
 855                         int idx, i, j;
 856                         u_int reg, reg2;
 857                         u_int intface, def, num;
 858                         u_int power, timing, iospace, irq, memspace, misc;
 859                         struct pccard_config_entry *cfe;
 860
 861                         idx = 0;
 862
 863                         reg = pccard_tuple_read_1(tuple, idx);
 864                         idx++;
 865                         intface = reg & PCCARD_TPCE_INDX_INTFACE;
 866                         def = reg & PCCARD_TPCE_INDX_DEFAULT;
 867                         num = reg & PCCARD_TPCE_INDX_NUM_MASK;
 868
 869                         /*
 870                          * this is a little messy.  Some cards have only a
 871                          * cfentry with the default bit set.  So, as we go
 872                          * through the list, we add new indexes to the queue,
 873                          * and keep a pointer to the last one with the
 874                          * default bit set.  if we see a record with the same
 875                          * index, as the default, we stash the default and
 876                          * replace the queue entry. otherwise, we just add
 877                          * new entries to the queue, pointing the default ptr
 878                          * at them if the default bit is set.  if we get to
 879                          * the end with the default pointer pointing at a
 880                          * record which hasn't had a matching index, that's
 881                          * ok; it just becomes a cfentry like any other.
 882                          */
 883
 884                         /*
 885                          * if the index in the cis differs from the default
 886                          * cis, create new entry in the queue and start it
 887                          * with the current default
 888                          */
 889                         if (num != state->default_cfe->number) {
 890                                 cfe = malloc(sizeof(*cfe), M_DEVBUF, M_INTWAIT);
 891
 892                                 *cfe = *state->default_cfe;
 893
 894                                 STAILQ_INSERT_TAIL(&state->pf->cfe_head,
 895                                     cfe, cfe_list);
 896
 897                                 cfe->number = num;
 898
 899                                 /*
 900                                  * if the default bit is set in the cis, then
 901                                  * point the new default at whatever is being
 902                                  * filled in
 903                                  */
 904                                 if (def)
 905                                         state->default_cfe = cfe;
 906                         } else {
 907                                 /*
 908                                  * the cis index matches the default index,
 909                                  * fill in the default cfentry.  It is
 910                                  * assumed that the cfdefault index is in the
 911                                  * queue.  For it to be otherwise, the cis
 912                                  * index would have to be -1 (initial
 913                                  * condition) which is not possible, or there
 914                                  * would have to be a preceding cis entry
 915                                  * which had the same cis index and had the
 916                                  * default bit unset. Neither condition
 917                                  * should happen.  If it does, this cfentry
 918                                  * is lost (written into temp space), which
 919                                  * is an acceptable failure mode.
 920                                  */
 921
 922                                 cfe = state->default_cfe;
 923
 924                                 /*
 925                                  * if the cis entry does not have the default
 926                                  * bit set, copy the default out of the way
 927                                  * first.
 928                                  */
 929                                 if (!def) {
 930                                         state->temp_cfe = *state->default_cfe;
 931                                         state->default_cfe = &state->temp_cfe;
 932                                 }
 933                         }
 934
 935                         if (intface) {
 936                                 reg = pccard_tuple_read_1(tuple, idx);
 937                                 idx++;
 938                                 cfe->flags &= ~(PCCARD_CFE_MWAIT_REQUIRED
 939                                     | PCCARD_CFE_RDYBSY_ACTIVE
 940                                     | PCCARD_CFE_WP_ACTIVE
 941                                     | PCCARD_CFE_BVD_ACTIVE);
 942                                 if (reg & PCCARD_TPCE_IF_MWAIT)
 943                                         cfe->flags |= PCCARD_CFE_MWAIT_REQUIRED;
 944                                 if (reg & PCCARD_TPCE_IF_RDYBSY)
 945                                         cfe->flags |= PCCARD_CFE_RDYBSY_ACTIVE;
 946                                 if (reg & PCCARD_TPCE_IF_WP)
 947                                         cfe->flags |= PCCARD_CFE_WP_ACTIVE;
 948                                 if (reg & PCCARD_TPCE_IF_BVD)
 949                                         cfe->flags |= PCCARD_CFE_BVD_ACTIVE;
 950                                 cfe->iftype = reg & PCCARD_TPCE_IF_IFTYPE;
 951                         }
 952                         reg = pccard_tuple_read_1(tuple, idx);
 953                         idx++;
 954
 955                         power = reg & PCCARD_TPCE_FS_POWER_MASK;
 956                         timing = reg & PCCARD_TPCE_FS_TIMING;
 957                         iospace = reg & PCCARD_TPCE_FS_IOSPACE;
 958                         irq = reg & PCCARD_TPCE_FS_IRQ;
 959                         memspace = reg & PCCARD_TPCE_FS_MEMSPACE_MASK;
 960                         misc = reg & PCCARD_TPCE_FS_MISC;
 961
 962                         if (power) {
 963                                 /* skip over power, don't save */
 964                                 /* for each parameter selection byte */
 965                                 for (i = 0; i < power; i++) {
 966                                         reg = pccard_tuple_read_1(tuple, idx);
 967                                         idx++;
 968                                         /* for each bit */
 969                                         for (j = 0; j < 7; j++) {
 970                                                 /* if the bit is set */
 971                                                 if ((reg >> j) & 0x01) {
 972                                                         /* skip over bytes */
 973                                                         do {
 974                                                                 reg2 = pccard_tuple_read_1(tuple, idx);
 975                                                                 idx++;
 976                                                                 /*
 977                                                                  * until
 978                                                                  * non-extensi
 979                                                                  * on byte
 980                                                                  */
 981                                                         } while (reg2 & 0x80);
 982                                                 }
 983                                         }
 984                                 }
 985                         }
 986                         if (timing) {
 987                                 /* skip over timing, don't save */
 988                                 reg = pccard_tuple_read_1(tuple, idx);
 989                                 idx++;
 990
 991                                 if ((reg & PCCARD_TPCE_TD_RESERVED_MASK) !=
 992                                     PCCARD_TPCE_TD_RESERVED_MASK)
 993                                         idx++;
 994                                 if ((reg & PCCARD_TPCE_TD_RDYBSY_MASK) !=
 995                                     PCCARD_TPCE_TD_RDYBSY_MASK)
 996                                         idx++;
 997                                 if ((reg & PCCARD_TPCE_TD_WAIT_MASK) !=
 998                                     PCCARD_TPCE_TD_WAIT_MASK)
 999                                         idx++;
1000                         }
1001                         if (iospace) {
1002                                 if (tuple->length <= idx) {
1003                                         DPRINTF(("ran out of space before TCPE_IO\n"));
1004                                         goto abort_cfe;
1005                                 }
1006
1007                                 reg = pccard_tuple_read_1(tuple, idx);
1008                                 idx++;
1009                                 cfe->flags &=
1010                                     ~(PCCARD_CFE_IO8 | PCCARD_CFE_IO16);
1011                                 if (reg & PCCARD_TPCE_IO_BUSWIDTH_8BIT)
1012                                         cfe->flags |= PCCARD_CFE_IO8;
1013                                 if (reg & PCCARD_TPCE_IO_BUSWIDTH_16BIT)
1014                                         cfe->flags |= PCCARD_CFE_IO16;
1015                                 cfe->iomask =
1016                                     reg & PCCARD_TPCE_IO_IOADDRLINES_MASK;
1017
1018                                 if (reg & PCCARD_TPCE_IO_HASRANGE) {
1019                                         reg = pccard_tuple_read_1(tuple, idx);
1020                                         idx++;
1021
1022                                         cfe->num_iospace = 1 + (reg &
1023                                             PCCARD_TPCE_IO_RANGE_COUNT);
1024
1025                                         if (cfe->num_iospace >
1026                                             (sizeof(cfe->iospace) /
1027                                              sizeof(cfe->iospace[0]))) {
1028                                                 DPRINTF(("too many io "
1029                                                     "spaces %d",
1030                                                     cfe->num_iospace));
1031                                                 state->card->error++;
1032                                                 break;
1033                                         }
1034                                         for (i = 0; i < cfe->num_iospace; i++) {
1035                                                 switch (reg & PCCARD_TPCE_IO_RANGE_ADDRSIZE_MASK) {
1036                                                 case PCCARD_TPCE_IO_RANGE_ADDRSIZE_ONE:
1037                                                         cfe->iospace[i].start =
1038                                                                 pccard_tuple_read_1(tuple, idx);
1039                                                         idx++;
1040                                                         break;
1041                                                 case PCCARD_TPCE_IO_RANGE_ADDRSIZE_TWO:
1042                                                         cfe->iospace[i].start =
1043                                                                 pccard_tuple_read_2(tuple, idx);
1044                                                         idx += 2;
1045                                                         break;
1046                                                 case PCCARD_TPCE_IO_RANGE_ADDRSIZE_FOUR:
1047                                                         cfe->iospace[i].start =
1048                                                                 pccard_tuple_read_4(tuple, idx);
1049                                                         idx += 4;
1050                                                         break;
1051                                                 }
1052                                                 switch (reg &
1053                                                         PCCARD_TPCE_IO_RANGE_LENGTHSIZE_MASK) {
1054                                                 case PCCARD_TPCE_IO_RANGE_LENGTHSIZE_ONE:
1055                                                         cfe->iospace[i].length =
1056                                                                 pccard_tuple_read_1(tuple, idx);
1057                                                         idx++;
1058                                                         break;
1059                                                 case PCCARD_TPCE_IO_RANGE_LENGTHSIZE_TWO:
1060                                                         cfe->iospace[i].length =
1061                                                                 pccard_tuple_read_2(tuple, idx);
1062                                                         idx += 2;
1063                                                         break;
1064                                                 case PCCARD_TPCE_IO_RANGE_LENGTHSIZE_FOUR:
1065                                                         cfe->iospace[i].length =
1066                                                                 pccard_tuple_read_4(tuple, idx);
1067                                                         idx += 4;
1068                                                         break;
1069                                                 }
1070                                                 cfe->iospace[i].length++;
1071                                         }
1072                                 } else {
1073                                         cfe->num_iospace = 1;
1074                                         cfe->iospace[0].start = 0;
1075                                         cfe->iospace[0].length =
1076                                             (1 << cfe->iomask);
1077                                 }
1078                         }
1079                         if (irq) {
1080                                 if (tuple->length <= idx) {
1081                                         DPRINTF(("ran out of space before TCPE_IR\n"));
1082                                         goto abort_cfe;
1083                                 }
1084
1085                                 reg = pccard_tuple_read_1(tuple, idx);
1086                                 idx++;
1087                                 cfe->flags &= ~(PCCARD_CFE_IRQSHARE
1088                                     | PCCARD_CFE_IRQPULSE
1089                                     | PCCARD_CFE_IRQLEVEL);
1090                                 if (reg & PCCARD_TPCE_IR_SHARE)
1091                                         cfe->flags |= PCCARD_CFE_IRQSHARE;
1092                                 if (reg & PCCARD_TPCE_IR_PULSE)
1093                                         cfe->flags |= PCCARD_CFE_IRQPULSE;
1094                                 if (reg & PCCARD_TPCE_IR_LEVEL)
1095                                         cfe->flags |= PCCARD_CFE_IRQLEVEL;
1096
1097                                 if (reg & PCCARD_TPCE_IR_HASMASK) {
1098                                         /*
1099                                          * it's legal to ignore the
1100                                          * special-interrupt bits, so I will
1101                                          */
1102
1103                                         cfe->irqmask =
1104                                             pccard_tuple_read_2(tuple, idx);
1105                                         idx += 2;
1106                                 } else {
1107                                         cfe->irqmask =
1108                                             (1 << (reg & PCCARD_TPCE_IR_IRQ));
1109                                 }
1110                         }
1111                         if (memspace) {
1112                                 if (tuple->length <= idx) {
1113                                         DPRINTF(("ran out of space before TCPE_MS\n"));
1114                                         goto abort_cfe;
1115                                 }
1116
1117                                 if (memspace == PCCARD_TPCE_FS_MEMSPACE_NONE) {
1118                                         cfe->num_memspace = 0;
1119                                 } else if (memspace == PCCARD_TPCE_FS_MEMSPACE_LENGTH) {
1120                                         cfe->num_memspace = 1;
1121                                         cfe->memspace[0].length = 256 *
1122                                             pccard_tuple_read_2(tuple, idx);
1123                                         idx += 2;
1124                                         cfe->memspace[0].cardaddr = 0;
1125                                         cfe->memspace[0].hostaddr = 0;
1126                                 } else if (memspace ==
1127                                     PCCARD_TPCE_FS_MEMSPACE_LENGTHADDR) {
1128                                         cfe->num_memspace = 1;
1129                                         cfe->memspace[0].length = 256 *
1130                                             pccard_tuple_read_2(tuple, idx);
1131                                         idx += 2;
1132                                         cfe->memspace[0].cardaddr = 256 *
1133                                             pccard_tuple_read_2(tuple, idx);
1134                                         idx += 2;
1135                                         cfe->memspace[0].hostaddr = cfe->memspace[0].cardaddr;
1136                                 } else {
1137                                         int lengthsize;
1138                                         int cardaddrsize;
1139                                         int hostaddrsize;
1140
1141                                         reg = pccard_tuple_read_1(tuple, idx);
1142                                         idx++;
1143
1144                                         cfe->num_memspace = (reg &
1145                                             PCCARD_TPCE_MS_COUNT) + 1;
1146
1147                                         if (cfe->num_memspace >
1148                                             (sizeof(cfe->memspace) /
1149                                              sizeof(cfe->memspace[0]))) {
1150                                                 DPRINTF(("too many mem "
1151                                                     "spaces %d",
1152                                                     cfe->num_memspace));
1153                                                 state->card->error++;
1154                                                 break;
1155                                         }
1156                                         lengthsize =
1157                                                 ((reg & PCCARD_TPCE_MS_LENGTH_SIZE_MASK) >>
1158                                                  PCCARD_TPCE_MS_LENGTH_SIZE_SHIFT);
1159                                         cardaddrsize =
1160                                                 ((reg & PCCARD_TPCE_MS_CARDADDR_SIZE_MASK) >>
1161                                                  PCCARD_TPCE_MS_CARDADDR_SIZE_SHIFT);
1162                                         hostaddrsize =
1163                                                 (reg & PCCARD_TPCE_MS_HOSTADDR) ? cardaddrsize : 0;
1164
1165                                         if (lengthsize == 0) {
1166                                                 DPRINTF(("cfe memspace "
1167                                                     "lengthsize == 0"));
1168                                                 state->card->error++;
1169                                         }
1170                                         for (i = 0; i < cfe->num_memspace; i++) {
1171                                                 if (lengthsize) {
1172                                                         cfe->memspace[i].length =
1173                                                                 256 * pccard_tuple_read_n(tuple, lengthsize,
1174                                                                        idx);
1175                                                         idx += lengthsize;
1176                                                 } else {
1177                                                         cfe->memspace[i].length = 0;
1178                                                 }
1179                                                 if (cfe->memspace[i].length == 0) {
1180                                                         DPRINTF(("cfe->memspace[%d].length == 0",
1181                                                                  i));
1182                                                         state->card->error++;
1183                                                 }
1184                                                 if (cardaddrsize) {
1185                                                         cfe->memspace[i].cardaddr =
1186                                                                 256 * pccard_tuple_read_n(tuple, cardaddrsize,
1187                                                                        idx);
1188                                                         idx += cardaddrsize;
1189                                                 } else {
1190                                                         cfe->memspace[i].cardaddr = 0;
1191                                                 }
1192                                                 if (hostaddrsize) {
1193                                                         cfe->memspace[i].hostaddr =
1194                                                                 256 * pccard_tuple_read_n(tuple, hostaddrsize,
1195                                                                        idx);
1196                                                         idx += hostaddrsize;
1197                                                 } else {
1198                                                         cfe->memspace[i].hostaddr = 0;
1199                                                 }
1200                                         }
1201                                 }
1202                         }
1203                         if (misc) {
1204                                 if (tuple->length <= idx) {
1205                                         DPRINTF(("ran out of space before TCPE_MI\n"));
1206                                         goto abort_cfe;
1207                                 }
1208
1209                                 reg = pccard_tuple_read_1(tuple, idx);
1210                                 idx++;
1211                                 cfe->flags &= ~(PCCARD_CFE_POWERDOWN
1212                                     | PCCARD_CFE_READONLY
1213                                     | PCCARD_CFE_AUDIO);
1214                                 if (reg & PCCARD_TPCE_MI_PWRDOWN)
1215                                         cfe->flags |= PCCARD_CFE_POWERDOWN;
1216                                 if (reg & PCCARD_TPCE_MI_READONLY)
1217                                         cfe->flags |= PCCARD_CFE_READONLY;
1218                                 if (reg & PCCARD_TPCE_MI_AUDIO)
1219                                         cfe->flags |= PCCARD_CFE_AUDIO;
1220                                 cfe->maxtwins = reg & PCCARD_TPCE_MI_MAXTWINS;
1221
1222                                 while (reg & PCCARD_TPCE_MI_EXT) {
1223                                         reg = pccard_tuple_read_1(tuple, idx);
1224                                         idx++;
1225                                 }
1226                         }
1227                         /* skip all the subtuples */
1228                 }
1229
1230         abort_cfe:
1231                 DPRINTF(("CISTPL_CFTABLE_ENTRY\n"));
1232                 break;
1233         default:
1234                 DPRINTF(("unhandled CISTPL %x\n", tuple->code));
1235                 break;
1236         }
1237
1238         return (0);
1239 }
1240
1241 static int
1242 decode_funce(struct pccard_tuple *tuple, struct pccard_function *pf)
1243 {
1244         int type = pccard_tuple_read_1(tuple, 0);
1245
1246         switch (pf->function) {
1247         case PCCARD_FUNCTION_DISK:
1248                 if (type == PCCARD_TPLFE_TYPE_DISK_DEVICE_INTERFACE) {
1249                         pf->pf_funce_disk_interface
1250                                 = pccard_tuple_read_1(tuple, 1);
1251                 }
1252                 break;
1253         case PCCARD_FUNCTION_NETWORK:
1254                 if (type == PCCARD_TPLFE_TYPE_LAN_NID) {
1255                         int i;
1256                         int len = pccard_tuple_read_1(tuple, 1);
1257                         if (tuple->length < 2 + len || len > 8) {
1258                                 /* tuple length not enough or nid too long */
1259                                 break;
1260                         }
1261                         for (i = 0; i < len; i++) {
1262                                 pf->pf_funce_lan_nid[i]
1263                                         = pccard_tuple_read_1(tuple, i + 2);
1264                         }
1265                         pf->pf_funce_lan_nidlen = len;
1266                 }
1267                 break;
1268         default:
1269                 break;
1270         }
1271         return 0;
1272 }