workbench/devs/networks/intelpro100/pci.c

   1 /*
   2
   3 Copyright (C) 2004-2009 Neil Cafferkey
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful, but
  11 WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13 General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  18 MA 02111-1307, USA.
  19
  20 */
  21
  22
  23 #include <exec/types.h>
  24 #include <utility/tagitem.h>
  25
  26 #ifdef __amigaos4__
  27 #include <expansion/pci.h>
  28 #endif
  29
  30 #include <proto/exec.h>
  31 #include <proto/expansion.h>
  32
  33 #include "device.h"
  34 #include "pci.h"
  35
  36 #include "pci_protos.h"
  37 #include "prometheus_protos.h"
  38 #include "powerpci_protos.h"
  39 #include "expansion_protos.h"
  40 #include "openpci_protos.h"
  41 #include "unit_protos.h"
  42
  43
  44 /* Private prototypes */
  45
  46 static struct DevUnit *FindPCIUnit(ULONG index, struct DevBase *base);
  47 static struct DevUnit *CreatePCIUnit(ULONG index, struct DevBase *base);
  48 static struct BusContext *AllocCard(ULONG index, struct DevBase *base);
  49 static VOID FreeCard(struct BusContext *context, struct DevBase *base);
  50 static BOOL AddPCIIntServer(APTR card, struct Interrupt *interrupt,
  51    struct DevBase *base);
  52 static VOID RemPCIIntServer(APTR card, struct Interrupt *interrupt,
  53    struct DevBase *base);
  54 static UBYTE ByteInHook(struct BusContext *context, ULONG offset);
  55 static VOID ByteOutHook(struct BusContext *context, ULONG offset,
  56    UBYTE value);
  57 static UWORD LEWordInHook(struct BusContext *context, ULONG offset);
  58 static ULONG LELongInHook(struct BusContext *context, ULONG offset);
  59 static VOID LEWordOutHook(struct BusContext *context, ULONG offset,
  60    UWORD value);
  61 static VOID LELongOutHook(struct BusContext *context, ULONG offset,
  62    ULONG value);
  63 static APTR AllocDMAMemHook(struct BusContext *context, UPINT size,
  64    UWORD alignment);
  65 static VOID FreeDMAMemHook(struct BusContext *context, APTR mem);
  66 static BOOL WrapInt(struct Interrupt *interrupt, struct DevBase *base);
  67 static VOID UnwrapInt(struct Interrupt *interrupt, struct DevBase *base);
  68
  69
  70 const UWORD product_codes[] =
  71 {
  72    0x8086, 0x1029,
  73    0x8086, 0x1030,
  74    0x8086, 0x1031,
  75    0x8086, 0x1032,
  76    0x8086, 0x1033,
  77    0x8086, 0x1034,
  78    0x8086, 0x1035,
  79    0x8086, 0x1036,
  80    0x8086, 0x1037,
  81    0x8086, 0x1038,
  82    0x8086, 0x1039,
  83    0x8086, 0x103A,
  84    0x8086, 0x103B,
  85    0x8086, 0x103C,
  86    0x8086, 0x103D,
  87    0x8086, 0x103E,
  88    0x8086, 0x1050,
  89    0x8086, 0x1051,
  90    0x8086, 0x1052,
  91    0x8086, 0x1053,
  92    0x8086, 0x1054,
  93    0x8086, 0x1055,
  94    0x8086, 0x1056,
  95    0x8086, 0x1057,
  96    0x8086, 0x1059,
  97    0x8086, 0x1064,
  98    0x8086, 0x1065,
  99    0x8086, 0x1066,
 100    0x8086, 0x1067,
 101    0x8086, 0x1068,
 102    0x8086, 0x1069,
 103    0x8086, 0x106A,
 104    0x8086, 0x106B,
 105    0x8086, 0x1091,
 106    0x8086, 0x1092,
 107    0x8086, 0x1093,
 108    0x8086, 0x1094,
 109    0x8086, 0x1095,
 110    0x8086, 0x1209,
 111    0x8086, 0x1227,
 112    0x8086, 0x1228,
 113    0x8086, 0x1229,
 114    0x8086, 0x2449,
 115    0x8086, 0x2459,
 116    0x8086, 0x245D,
 117    0x8086, 0x27DC,
 118    0x8086, 0x5200,
 119    0x8086, 0x5201,
 120    0xffff, 0xffff
 121 };
 122
 123
 124 static struct TagItem unit_tags[] =
 125 {
 126    {IOTAG_ByteIn, (UPINT)ByteInHook},
 127    {IOTAG_ByteOut, (UPINT)ByteOutHook},
 128    {IOTAG_LEWordIn, (UPINT)LEWordInHook},
 129    {IOTAG_LELongIn, (UPINT)LELongInHook},
 130    {IOTAG_LEWordOut, (UPINT)LEWordOutHook},
 131    {IOTAG_LELongOut, (UPINT)LELongOutHook},
 132    {IOTAG_AllocDMAMem, (UPINT)AllocDMAMemHook},
 133    {IOTAG_FreeDMAMem, (UPINT)FreeDMAMemHook},
 134    {TAG_END, 0}
 135 };
 136
 137
 138 /****i* intelpro100.device/GetPCICount *************************************
 139 *
 140 *   NAME
 141 *       GetPCICount -- Get the number of compatible PCI Cards.
 142 *
 143 *   SYNOPSIS
 144 *       count = GetPCICount()
 145 *
 146 *       ULONG GetPCICount();
 147 *
 148 ****************************************************************************
 149 *
 150 */
 151
 152 ULONG GetPCICount(struct DevBase *base)
 153 {
 154    ULONG count = 0;
 155
 156 #if !(defined(__MORPHOS__) || defined(__amigaos4__))
 157    if(base->prometheus_base != NULL)
 158       count = GetPrometheusCount(base);
 159 #endif
 160 #if defined(__mc68000__) && !defined(__AROS__)
 161    if(base->powerpci_base != NULL)
 162       count = GetPowerPCICount(base);
 163 #endif
 164 #ifdef __amigaos4__
 165    if(base->expansion_base != NULL)
 166       count = GetExpansionCount(base);
 167 #endif
 168 #ifdef __MORPHOS__
 169    if(base->openpci_base != NULL)
 170       count = GetOpenPCICount(base);
 171 #endif
 172
 173    return count;
 174 }
 175
 176
 177
 178 /****i* intelpro100.device/GetPCIUnit **************************************
 179 *
 180 *   NAME
 181 *       GetPCIUnit -- Get a unit by number.
 182 *
 183 *   SYNOPSIS
 184 *       unit = GetPCIUnit(index)
 185 *
 186 *       struct DevUnit *GetPCIUnit(ULONG);
 187 *
 188 ****************************************************************************
 189 *
 190 */
 191
 192 struct DevUnit *GetPCIUnit(ULONG index, struct DevBase *base)
 193 {
 194    struct DevUnit *unit;
 195
 196    unit = FindPCIUnit(index, base);
 197
 198    if(unit == NULL)
 199    {
 200       unit = CreatePCIUnit(index, base);
 201       if(unit != NULL)
 202       {
 203          AddTail((APTR)&base->pci_units, (APTR)unit);
 204       }
 205    }
 206
 207    return unit;
 208 }
 209
 210
 211
 212 /****i* intelpro100.device/FindPCIUnit *************************************
 213 *
 214 *   NAME
 215 *       FindPCIUnit -- Find a unit by number.
 216 *
 217 *   SYNOPSIS
 218 *       unit = FindPCIUnit(index)
 219 *
 220 *       struct DevUnit *FindPCIUnit(ULONG);
 221 *
 222 ****************************************************************************
 223 *
 224 */
 225
 226 static struct DevUnit *FindPCIUnit(ULONG index, struct DevBase *base)
 227 {
 228    struct DevUnit *unit, *tail;
 229    BOOL found = FALSE;
 230
 231    unit = (APTR)base->pci_units.mlh_Head;
 232    tail = (APTR)&base->pci_units.mlh_Tail;
 233
 234    while(unit != tail && !found)
 235    {
 236       if(unit->index == index)
 237          found = TRUE;
 238       else
 239          unit = (APTR)unit->node.mln_Succ;
 240    }
 241
 242    if(!found)
 243       unit = NULL;
 244
 245    return unit;
 246 }
 247
 248
 249
 250 /****i* intelpro100.device/CreatePCIUnit ***********************************
 251 *
 252 *   NAME
 253 *       CreatePCIUnit -- Create a unit.
 254 *
 255 *   SYNOPSIS
 256 *       unit = CreatePCIUnit(index)
 257 *
 258 *       struct DevUnit *CreatePCIUnit(ULONG);
 259 *
 260 *   FUNCTION
 261 *       Creates a PCI new unit.
 262 *
 263 ****************************************************************************
 264 *
 265 */
 266
 267 static struct DevUnit *CreatePCIUnit(ULONG index, struct DevBase *base)
 268 {
 269    BOOL success = TRUE;
 270    struct BusContext *context;
 271    struct DevUnit *unit = NULL;
 272
 273    context = AllocCard(index, base);
 274    if(context == NULL)
 275       success = FALSE;
 276
 277    if(success)
 278    {
 279       if(context->unit_tags == NULL)
 280       {
 281          context->unit_tags = unit_tags;
 282       }
 283    }
 284
 285    if(success)
 286    {
 287       context->device = base;
 288       context->unit = unit =
 289          CreateUnit(index, context, context->unit_tags, PCI_BUS, base);
 290       if(unit == NULL)
 291          success = FALSE;
 292    }
 293
 294    /* Add interrupt */
 295
 296    if(success)
 297    {
 298       if(!(WrapInt(&unit->status_int, base)
 299          && WrapInt(&unit->rx_int, base)
 300          && WrapInt(&unit->tx_int, base)
 301          && WrapInt(&unit->tx_end_int, base)))
 302          success = FALSE;
 303       success = AddPCIIntServer(context->card, &unit->status_int, base);
 304    }
 305
 306    if(!success)
 307    {
 308       if(context != NULL)
 309       {
 310          DeleteUnit(context->unit, base);
 311          FreeCard(context, base);
 312       }
 313       unit = NULL;
 314    }
 315
 316    return unit;
 317 }
 318
 319
 320
 321 /****i* intelpro100.device/DeletePCIUnit ***********************************
 322 *
 323 *   NAME
 324 *       DeletePCIUnit -- Delete a unit.
 325 *
 326 *   SYNOPSIS
 327 *       DeletePCIUnit(unit)
 328 *
 329 *       VOID DeletePCIUnit(struct DevUnit *);
 330 *
 331 *   FUNCTION
 332 *       Deletes a unit.
 333 *
 334 *   INPUTS
 335 *       unit - Device unit (can be NULL).
 336 *
 337 *   RESULT
 338 *       None.
 339 *
 340 ****************************************************************************
 341 *
 342 */
 343
 344 VOID DeletePCIUnit(struct DevUnit *unit, struct DevBase *base)
 345 {
 346    struct BusContext *context;
 347
 348    if(unit != NULL)
 349    {
 350       context = unit->card;
 351       RemPCIIntServer(context->card, &unit->status_int, base);
 352       UnwrapInt(&unit->tx_end_int, base);
 353       UnwrapInt(&unit->tx_int, base);
 354       UnwrapInt(&unit->rx_int, base);
 355       UnwrapInt(&unit->status_int, base);
 356       DeleteUnit(unit, base);
 357       FreeCard(context, base);
 358    }
 359
 360    return;
 361 }
 362
 363
 364
 365 /****i* intelpro100.device/AllocCard ***************************************
 366 *
 367 *   NAME
 368 *       AllocCard -- Get card from system.
 369 *
 370 *   SYNOPSIS
 371 *       context = AllocCard(index)
 372 *
 373 *       struct BusContext *AllocCard(ULONG);
 374 *
 375 ****************************************************************************
 376 *
 377 */
 378
 379 static struct BusContext *AllocCard(ULONG index, struct DevBase *base)
 380 {
 381    struct BusContext *context;
 382
 383 #if !(defined(__MORPHOS__) || defined(__amigaos4__))
 384    if(base->prometheus_base != NULL)
 385       context = AllocPrometheusCard(index, base);
 386 #endif
 387 #if defined(__mc68000__) && !defined(__AROS__)
 388    if(base->powerpci_base != NULL)
 389       context = AllocPowerPCICard(index, base);
 390 #endif
 391 #ifdef __amigaos4__
 392    if(base->expansion_base != NULL)
 393       context = AllocExpansionCard(index, base);
 394 #endif
 395 #ifdef __MORPHOS__
 396    if(base->openpci_base != NULL)
 397       context = AllocOpenPCICard(index, base);
 398 #endif
 399
 400    return context;
 401 }
 402
 403
 404
 405 /****i* intelpro100.device/FreeCard ****************************************
 406 *
 407 *   NAME
 408 *       FreeCard
 409 *
 410 *   SYNOPSIS
 411 *       FreeCard(context)
 412 *
 413 *       VOID FreeCard(struct BusContext *);
 414 *
 415 ****************************************************************************
 416 *
 417 */
 418
 419 static VOID FreeCard(struct BusContext *context, struct DevBase *base)
 420 {
 421
 422    if(context != NULL)
 423    {
 424 #if !(defined(__MORPHOS__) || defined(__amigaos4__))
 425       if(base->prometheus_base != NULL)
 426          FreePrometheusCard(context, base);
 427 #endif
 428 #if defined(__mc68000__) && !defined(__AROS__)
 429       if(base->powerpci_base != NULL)
 430          FreePowerPCICard(context, base);
 431 #endif
 432 #ifdef __amigaos4__
 433       if(base->expansion_base != NULL)
 434          FreeExpansionCard(context, base);
 435 #endif
 436 #ifdef __MORPHOS__
 437       if(base->openpci_base != NULL)
 438          FreeOpenPCICard(context, base);
 439 #endif
 440    }
 441
 442    return;
 443 }
 444
 445
 446
 447 /****i* intelpro100.device/AddPCIIntServer *********************************
 448 *
 449 *   NAME
 450 *       AddPCIIntServer
 451 *
 452 *   SYNOPSIS
 453 *       context = AddPCIIntServer(index)
 454 *
 455 *       struct BusContext *AddPCIIntServer(ULONG);
 456 *
 457 ****************************************************************************
 458 *
 459 */
 460
 461 static BOOL AddPCIIntServer(APTR card, struct Interrupt *interrupt,
 462    struct DevBase *base)
 463 {
 464    BOOL success;
 465
 466 #if !(defined(__MORPHOS__) || defined(__amigaos4__))
 467    if(base->prometheus_base != NULL)
 468       success = AddPrometheusIntServer(card, interrupt, base);
 469 #endif
 470 #if defined(__mc68000__) && !defined(__AROS__)
 471    if(base->powerpci_base != NULL)
 472       success = AddPowerPCIIntServer(card, interrupt, base);
 473 #endif
 474 #ifdef __amigaos4__
 475    if(base->expansion_base != NULL)
 476       success = AddExpansionIntServer(card, interrupt, base);
 477 #endif
 478 #ifdef __MORPHOS__
 479    if(base->openpci_base != NULL)
 480       success = AddOpenPCIIntServer(card, interrupt, base);
 481 #endif
 482
 483    return success;
 484 }
 485
 486
 487
 488 /****i* intelpro100.device/RemPCIIntServer *********************************
 489 *
 490 *   NAME
 491 *       RemPCIIntServer
 492 *
 493 *   SYNOPSIS
 494 *       RemPCIIntServer()
 495 *
 496 *       VOID RemPCIIntServer(ULONG);
 497 *
 498 ****************************************************************************
 499 *
 500 */
 501
 502 static VOID RemPCIIntServer(APTR card, struct Interrupt *interrupt,
 503    struct DevBase *base)
 504 {
 505 #if !(defined(__MORPHOS__) || defined(__amigaos4__))
 506    if(base->prometheus_base != NULL)
 507       RemPrometheusIntServer(card, interrupt, base);
 508 #endif
 509 #if defined(__mc68000__) && !defined(__AROS__)
 510    if(base->powerpci_base != NULL)
 511       RemPowerPCIIntServer(card, interrupt, base);
 512 #endif
 513 #ifdef __amigaos4__
 514    if(base->expansion_base != NULL)
 515       RemExpansionIntServer(card, interrupt, base);
 516 #endif
 517 #ifdef __MORPHOS__
 518    if(base->openpci_base != NULL)
 519       RemOpenPCIIntServer(card, interrupt, base);
 520 #endif
 521
 522    return;
 523 }
 524
 525
 526
 527 /****i* intelpro100.device/IsCardCompatible ********************************
 528 *
 529 *   NAME
 530 *       IsCardCompatible
 531 *
 532 *   SYNOPSIS
 533 *       compatible = IsCardCompatible(context)
 534 *
 535 *       BOOL IsCardCompatible(struct BusContext *);
 536 *
 537 ****************************************************************************
 538 *
 539 */
 540
 541 BOOL IsCardCompatible(UWORD vendor_id, UWORD product_id,
 542    struct DevBase *base)
 543 {
 544    BOOL compatible = FALSE;
 545    const UWORD *p;
 546
 547    for(p = product_codes; p[0] != 0xffff; p += 2)
 548    {
 549       if(p[0] == vendor_id && p[1] == product_id)
 550          compatible = TRUE;
 551    }
 552
 553    return compatible;
 554 }
 555
 556
 557
 558 /****i* intelpro100.device/ByteInHook **************************************
 559 *
 560 *   NAME
 561 *       ByteInHook
 562 *
 563 *   SYNOPSIS
 564 *       value = ByteInHook(context, offset)
 565 *
 566 *       UBYTE ByteInHook(struct BusContext *, ULONG);
 567 *
 568 ****************************************************************************
 569 *
 570 */
 571
 572 static UBYTE ByteInHook(struct BusContext *context, ULONG offset)
 573 {
 574    return BYTEIN(context->io_base + offset);
 575 }
 576
 577
 578
 579 /****i* intelpro100.device/ByteOutHook *************************************
 580 *
 581 *   NAME
 582 *       ByteOutHook
 583 *
 584 *   SYNOPSIS
 585 *       ByteOutHook(context, offset, value)
 586 *
 587 *       VOID ByteOutHook(struct BusContext *, ULONG, UBYTE);
 588 *
 589 ****************************************************************************
 590 *
 591 */
 592
 593 static VOID ByteOutHook(struct BusContext *context, ULONG offset,
 594    UBYTE value)
 595 {
 596    BYTEOUT(context->io_base + offset, value);
 597
 598    return;
 599 }
 600
 601
 602
 603 /****i* intelpro100.device/LEWordInHook ************************************
 604 *
 605 *   NAME
 606 *       LEWordInHook
 607 *
 608 *   SYNOPSIS
 609 *       value = LEWordInHook(context, offset)
 610 *
 611 *       UWORD LEWordInHook(struct BusContext *, ULONG);
 612 *
 613 ****************************************************************************
 614 *
 615 */
 616
 617 static UWORD LEWordInHook(struct BusContext *context, ULONG offset)
 618 {
 619    return LEWORDIN(context->io_base + offset);
 620 }
 621
 622
 623
 624 /****i* intelpro100.device/LELongInHook ************************************
 625 *
 626 *   NAME
 627 *       LELongInHook
 628 *
 629 *   SYNOPSIS
 630 *       value = LELongInHook(context, offset)
 631 *
 632 *       ULONG LELongInHook(struct BusContext *, ULONG);
 633 *
 634 ****************************************************************************
 635 *
 636 */
 637
 638 static ULONG LELongInHook(struct BusContext *context, ULONG offset)
 639 {
 640    return LELONGIN(context->io_base + offset);
 641 }
 642
 643
 644
 645 /****i* intelpro100.device/LEWordOutHook ***********************************
 646 *
 647 *   NAME
 648 *       LEWordOutHook
 649 *
 650 *   SYNOPSIS
 651 *       LEWordOutHook(context, offset, value)
 652 *
 653 *       VOID LEWordOutHook(struct BusContext *, ULONG, UWORD);
 654 *
 655 ****************************************************************************
 656 *
 657 */
 658
 659 static VOID LEWordOutHook(struct BusContext *context, ULONG offset,
 660    UWORD value)
 661 {
 662    LEWORDOUT(context->io_base + offset, value);
 663
 664    return;
 665 }
 666
 667
 668
 669 /****i* intelpro100.device/LELongOutHook ***********************************
 670 *
 671 *   NAME
 672 *       LELongOutHook
 673 *
 674 *   SYNOPSIS
 675 *       LELongOutHook(context, offset, value)
 676 *
 677 *       VOID LELongOutHook(struct BusContext *, ULONG, ULONG);
 678 *
 679 ****************************************************************************
 680 *
 681 */
 682
 683 static VOID LELongOutHook(struct BusContext *context, ULONG offset,
 684    ULONG value)
 685 {
 686    LELONGOUT(context->io_base + offset, value);
 687
 688    return;
 689 }
 690
 691
 692
 693 /****i* intelpro100.device/AllocDMAMemHook *********************************
 694 *
 695 *   NAME
 696 *       AllocDMAMemHook
 697 *
 698 *   SYNOPSIS
 699 *       mem = AllocDMAMemHook(context, size, alignment)
 700 *
 701 *       APTR AllocDMAMemHook(struct BusContext *, UPINT, UWORD);
 702 *
 703 ****************************************************************************
 704 *
 705 * Alignment currently must be minimum of 8 bytes.
 706 *
 707 */
 708
 709 static APTR AllocDMAMemHook(struct BusContext *context, UPINT size,
 710    UWORD alignment)
 711 {
 712    struct DevBase *base;
 713    APTR mem = NULL, original_mem;
 714
 715    base = context->device;
 716    size += 2 * sizeof(APTR) + alignment;
 717 #if !(defined(__MORPHOS__) || defined(__amigaos4__))
 718    if(base->prometheus_base != NULL)
 719       original_mem = AllocPrometheusDMAMem(size, base);
 720    else
 721 #endif
 722       original_mem = AllocMem(size, MEMF_PUBLIC);
 723    if(original_mem != NULL)
 724    {
 725       mem = (APTR)((UPINT)(original_mem + 2 * sizeof(APTR) + alignment - 1)
 726          & ~(alignment - 1));
 727       *((APTR *)mem - 1) = original_mem;
 728       *((UPINT *)mem - 2) = size;
 729    }
 730
 731    return mem;
 732 }
 733
 734
 735
 736 /****i* intelpro100.device/FreeDMAMemHook **********************************
 737 *
 738 *   NAME
 739 *       FreeDMAMemHook
 740 *
 741 *   SYNOPSIS
 742 *       FreeDMAMemHook(context, mem)
 743 *
 744 *       VOID FreeDMAMemHook(struct BusContext *, APTR);
 745 *
 746 ****************************************************************************
 747 *
 748 */
 749
 750 static VOID FreeDMAMemHook(struct BusContext *context, APTR mem)
 751 {
 752    struct DevBase *base;
 753
 754    base = context->device;
 755    if(mem != NULL)
 756    {
 757 #if !(defined(__MORPHOS__) || defined(__amigaos4__))
 758       if(base->prometheus_base != NULL)
 759          FreePrometheusDMAMem(*((APTR *)mem - 1), *((UPINT *)mem - 2),
 760             base);
 761       else
 762 #endif
 763          FreeMem(*((APTR *)mem - 1), *((UPINT *)mem - 2));
 764    }
 765
 766    return;
 767 }
 768
 769
 770
 771 /****i* intelpro100.device/WrapInt *****************************************
 772 *
 773 *   NAME
 774 *       WrapInt
 775 *
 776 ****************************************************************************
 777 *
 778 */
 779
 780 BOOL WrapInt(struct Interrupt *interrupt, struct DevBase *base)
 781 {
 782    BOOL success = TRUE;
 783 #if defined(__amigaos4__) || defined(__MORPHOS__)
 784    APTR *int_data;
 785
 786    int_data = AllocMem(2 * sizeof(APTR), MEMF_PUBLIC | MEMF_CLEAR);
 787    if(int_data != NULL)
 788    {
 789       int_data[0] = interrupt->is_Code;
 790       int_data[1] = interrupt->is_Data;
 791       interrupt->is_Code = base->wrapper_int_code;
 792       interrupt->is_Data = int_data;
 793    }
 794    else
 795       success = FALSE;
 796 #endif
 797
 798    return success;
 799 }
 800
 801
 802
 803 /****i* intelpro100.device/UnwrapInt ***************************************
 804 *
 805 *   NAME
 806 *       UnwrapInt
 807 *
 808 ****************************************************************************
 809 *
 810 */
 811
 812 static VOID UnwrapInt(struct Interrupt *interrupt, struct DevBase *base)
 813 {
 814    if(interrupt->is_Code == base->wrapper_int_code)
 815       FreeMem(interrupt->is_Data, 2 * sizeof(APTR));
 816
 817    return;
 818 }
 819
 820
 821