hal/halx86/bus.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            ntoskrnl/hal/x86/bus.c
   6  * PURPOSE:         Bus functions
   7  * PROGRAMMER:      David Welch (welch@mcmail.com)
   8  * UPDATE HISTORY:
   9  *                  Created 22/05/98
  10  *
  11  *
  12  * TODO:
  13  *   - Add bus handler functions for all busses
  14  */
  15
  16 /* INCLUDES *****************************************************************/
  17
  18 #include <ddk/ntddk.h>
  19 #include <hal.h>
  20 #include <bus.h>
  21
  22 #define NDEBUG
  23 #include <internal/debug.h>
  24
  25 /* GLOBALS *******************************************************************/
  26
  27 #define TAG_BUS  TAG('B', 'U', 'S', 'H')
  28
  29 KSPIN_LOCK HalpBusHandlerSpinLock = {0,};
  30 LIST_ENTRY HalpBusHandlerList;
  31
  32
  33 /* FUNCTIONS *****************************************************************/
  34
  35 static NTSTATUS STDCALL
  36 HalpNoAdjustResourceList(PBUS_HANDLER BusHandler,
  37                          ULONG BusNumber,
  38                          PCM_RESOURCE_LIST Resources)
  39 {
  40    return STATUS_UNSUCCESSFUL;
  41 }
  42
  43
  44 static NTSTATUS STDCALL
  45 HalpNoAssignSlotResources(PBUS_HANDLER BusHandler,
  46                           ULONG BusNumber,
  47                           PUNICODE_STRING RegistryPath,
  48                           PUNICODE_STRING DriverClassName,
  49                           PDRIVER_OBJECT DriverObject,
  50                           PDEVICE_OBJECT DeviceObject,
  51                           ULONG SlotNumber,
  52                           PCM_RESOURCE_LIST *AllocatedResources)
  53 {
  54    return STATUS_NOT_SUPPORTED;
  55 }
  56
  57
  58 static ULONG STDCALL
  59 HalpNoBusData(PBUS_HANDLER BusHandler,
  60               ULONG BusNumber,
  61               ULONG SlotNumber,
  62               PVOID Buffer,
  63               ULONG Offset,
  64               ULONG Length)
  65 {
  66    return 0;
  67 }
  68
  69
  70 static ULONG STDCALL
  71 HalpNoGetInterruptVector(PBUS_HANDLER BusHandler,
  72                          ULONG BusNumber,
  73                          ULONG BusInterruptLevel,
  74                          ULONG BusInterruptVector,
  75                          PKIRQL Irql,
  76                          PKAFFINITY Affinity)
  77 {
  78    return 0;
  79 }
  80
  81
  82 static ULONG STDCALL
  83 HalpNoTranslateBusAddress(PBUS_HANDLER BusHandler,
  84                           ULONG BusNumber,
  85                           PHYSICAL_ADDRESS BusAddress,
  86                           PULONG AddressSpace,
  87                           PPHYSICAL_ADDRESS TranslatedAddress)
  88 {
  89    return 0;
  90 }
  91
  92
  93 PBUS_HANDLER
  94 HalpAllocateBusHandler(INTERFACE_TYPE InterfaceType,
  95                        BUS_DATA_TYPE BusDataType,
  96                        ULONG BusNumber)
  97 {
  98    PBUS_HANDLER BusHandler = NULL;
  99
 100    DPRINT("HalpAllocateBusHandler()\n");
 101
 102    BusHandler = ExAllocatePoolWithTag(NonPagedPool,
 103                                       sizeof(BUS_HANDLER),
 104                                       TAG_BUS);
 105    if (BusHandler == NULL)
 106      return NULL;
 107
 108    RtlZeroMemory(BusHandler,
 109                  sizeof(BUS_HANDLER));
 110
 111    InsertTailList(&HalpBusHandlerList,
 112                   &BusHandler->Entry);
 113
 114    BusHandler->InterfaceType = InterfaceType;
 115    BusHandler->BusDataType = BusDataType;
 116    BusHandler->BusNumber = BusNumber;
 117
 118    /* initialize default bus handler functions */
 119    BusHandler->GetBusData = HalpNoBusData;
 120    BusHandler->SetBusData = HalpNoBusData;
 121    BusHandler->AdjustResourceList = HalpNoAdjustResourceList;
 122    BusHandler->AssignSlotResources = HalpNoAssignSlotResources;
 123    BusHandler->GetInterruptVector = HalpNoGetInterruptVector;
 124    BusHandler->TranslateBusAddress = HalpNoTranslateBusAddress;
 125
 126    /* any more ?? */
 127
 128    DPRINT("HalpAllocateBusHandler() done\n");
 129
 130    return BusHandler;
 131 }
 132
 133
 134 VOID
 135 HalpInitBusHandlers(VOID)
 136 {
 137   PBUS_HANDLER BusHandler;
 138
 139   /* General preparations */
 140   KeInitializeSpinLock(&HalpBusHandlerSpinLock);
 141   InitializeListHead(&HalpBusHandlerList);
 142
 143   /* Initialize hal dispatch tables */
 144   HalQuerySystemInformation = HalpQuerySystemInformation;
 145
 146 #if 0
 147   HalSetSystemInformation = HalpSetSystemInformation;
 148
 149   HalQueryBusSlots = HalpQueryBusSlots;
 150 #endif
 151
 152   /* Add system bus handler */
 153   BusHandler = HalpAllocateBusHandler(Internal,
 154                                       ConfigurationSpaceUndefined,
 155                                       0);
 156   if (BusHandler == NULL)
 157     return;
 158   BusHandler->GetInterruptVector =
 159     (pGetInterruptVector)HalpGetSystemInterruptVector;
 160   BusHandler->TranslateBusAddress =
 161     (pTranslateBusAddress)HalpTranslateSystemBusAddress;
 162
 163   /* Add cmos bus handler */
 164   BusHandler = HalpAllocateBusHandler(InterfaceTypeUndefined,
 165                                       Cmos,
 166                                       0);
 167   if (BusHandler == NULL)
 168     return;
 169   BusHandler->GetBusData = (pGetSetBusData)HalpGetCmosData;
 170   BusHandler->SetBusData = (pGetSetBusData)HalpSetCmosData;
 171
 172   /* Add isa bus handler */
 173   BusHandler = HalpAllocateBusHandler(Isa,
 174                                       ConfigurationSpaceUndefined,
 175                                       0);
 176   if (BusHandler == NULL)
 177     return;
 178
 179   BusHandler->GetInterruptVector =
 180     (pGetInterruptVector)HalpGetIsaInterruptVector;
 181   BusHandler->TranslateBusAddress =
 182     (pTranslateBusAddress)HalpTranslateIsaBusAddress;
 183
 184   /* Add MicroChannel bus handler */
 185   BusHandler = HalpAllocateBusHandler(MicroChannel,
 186                                       Pos,
 187                                       0);
 188   if (BusHandler == NULL)
 189     return;
 190
 191   BusHandler->GetBusData = (pGetSetBusData)HalpGetMicroChannelData;
 192 }
 193
 194
 195 PBUS_HANDLER FASTCALL
 196 HaliHandlerForBus(INTERFACE_TYPE InterfaceType,
 197                   ULONG BusNumber)
 198 {
 199    PBUS_HANDLER BusHandler;
 200    PLIST_ENTRY CurrentEntry;
 201    KIRQL OldIrql;
 202
 203    KeAcquireSpinLock(&HalpBusHandlerSpinLock,
 204                      &OldIrql);
 205
 206    CurrentEntry = HalpBusHandlerList.Flink;
 207    while (CurrentEntry != &HalpBusHandlerList)
 208      {
 209         BusHandler = (PBUS_HANDLER)CurrentEntry;
 210         if (BusHandler->InterfaceType == InterfaceType &&
 211             BusHandler->BusNumber == BusNumber)
 212           {
 213              KeReleaseSpinLock(&HalpBusHandlerSpinLock,
 214                                OldIrql);
 215              return BusHandler;
 216           }
 217         CurrentEntry = CurrentEntry->Flink;
 218      }
 219    KeReleaseSpinLock(&HalpBusHandlerSpinLock,
 220                      OldIrql);
 221
 222    return NULL;
 223 }
 224
 225
 226 PBUS_HANDLER FASTCALL
 227 HaliHandlerForConfigSpace(BUS_DATA_TYPE BusDataType,
 228                           ULONG BusNumber)
 229 {
 230    PBUS_HANDLER BusHandler;
 231    PLIST_ENTRY CurrentEntry;
 232    KIRQL OldIrql;
 233
 234    KeAcquireSpinLock(&HalpBusHandlerSpinLock,
 235                      &OldIrql);
 236
 237    CurrentEntry = HalpBusHandlerList.Flink;
 238    while (CurrentEntry != &HalpBusHandlerList)
 239      {
 240         BusHandler = (PBUS_HANDLER)CurrentEntry;
 241         if (BusHandler->BusDataType == BusDataType &&
 242             BusHandler->BusNumber == BusNumber)
 243           {
 244              KeReleaseSpinLock(&HalpBusHandlerSpinLock,
 245                                OldIrql);
 246              return BusHandler;
 247           }
 248         CurrentEntry = CurrentEntry->Flink;
 249      }
 250    KeReleaseSpinLock(&HalpBusHandlerSpinLock,
 251                      OldIrql);
 252
 253    return NULL;
 254 }
 255
 256
 257 PBUS_HANDLER FASTCALL
 258 HaliReferenceHandlerForBus(INTERFACE_TYPE InterfaceType,
 259                            ULONG BusNumber)
 260 {
 261    PBUS_HANDLER BusHandler;
 262    PLIST_ENTRY CurrentEntry;
 263    KIRQL OldIrql;
 264
 265    KeAcquireSpinLock(&HalpBusHandlerSpinLock,
 266                      &OldIrql);
 267
 268    CurrentEntry = HalpBusHandlerList.Flink;
 269    while (CurrentEntry != &HalpBusHandlerList)
 270      {
 271         BusHandler = (PBUS_HANDLER)CurrentEntry;
 272         if (BusHandler->InterfaceType == InterfaceType &&
 273             BusHandler->BusNumber == BusNumber)
 274           {
 275              BusHandler->RefCount++;
 276              KeReleaseSpinLock(&HalpBusHandlerSpinLock,
 277                                OldIrql);
 278              return BusHandler;
 279           }
 280         CurrentEntry = CurrentEntry->Flink;
 281      }
 282    KeReleaseSpinLock(&HalpBusHandlerSpinLock,
 283                      OldIrql);
 284
 285    return NULL;
 286 }
 287
 288
 289 PBUS_HANDLER FASTCALL
 290 HaliReferenceHandlerForConfigSpace(BUS_DATA_TYPE BusDataType,
 291                                    ULONG BusNumber)
 292 {
 293    PBUS_HANDLER BusHandler;
 294    PLIST_ENTRY CurrentEntry;
 295    KIRQL OldIrql;
 296
 297    KeAcquireSpinLock(&HalpBusHandlerSpinLock,
 298                      &OldIrql);
 299
 300    CurrentEntry = HalpBusHandlerList.Flink;
 301    while (CurrentEntry != &HalpBusHandlerList)
 302      {
 303         BusHandler = (PBUS_HANDLER)CurrentEntry;
 304         if (BusHandler->BusDataType == BusDataType &&
 305             BusHandler->BusNumber == BusNumber)
 306           {
 307              BusHandler->RefCount++;
 308              KeReleaseSpinLock(&HalpBusHandlerSpinLock,
 309                                OldIrql);
 310              return BusHandler;
 311           }
 312         CurrentEntry = CurrentEntry->Flink;
 313      }
 314    KeReleaseSpinLock(&HalpBusHandlerSpinLock,
 315                      OldIrql);
 316
 317    return NULL;
 318 }
 319
 320
 321 VOID FASTCALL
 322 HaliDereferenceBusHandler(PBUS_HANDLER BusHandler)
 323 {
 324    KIRQL OldIrql;
 325
 326    KeAcquireSpinLock(&HalpBusHandlerSpinLock,
 327                      &OldIrql);
 328    BusHandler->RefCount--;
 329    KeReleaseSpinLock(&HalpBusHandlerSpinLock,
 330                      OldIrql);
 331 }
 332
 333
 334 NTSTATUS STDCALL
 335 HalAdjustResourceList(PCM_RESOURCE_LIST Resources)
 336 {
 337    PBUS_HANDLER BusHandler;
 338    NTSTATUS Status;
 339
 340    BusHandler = HaliReferenceHandlerForBus(Resources->List[0].InterfaceType,
 341                                            Resources->List[0].BusNumber);
 342    if (BusHandler == NULL)
 343      return STATUS_SUCCESS;
 344
 345    Status = BusHandler->AdjustResourceList(BusHandler,
 346                                            Resources->List[0].BusNumber,
 347                                            Resources);
 348    HaliDereferenceBusHandler (BusHandler);
 349
 350    return Status;
 351 }
 352
 353
 354 NTSTATUS STDCALL
 355 HalAssignSlotResources(PUNICODE_STRING RegistryPath,
 356                        PUNICODE_STRING DriverClassName,
 357                        PDRIVER_OBJECT DriverObject,
 358                        PDEVICE_OBJECT DeviceObject,
 359                        INTERFACE_TYPE BusType,
 360                        ULONG BusNumber,
 361                        ULONG SlotNumber,
 362                        PCM_RESOURCE_LIST *AllocatedResources)
 363 {
 364    PBUS_HANDLER BusHandler;
 365    NTSTATUS Status;
 366
 367    BusHandler = HaliReferenceHandlerForBus(BusType,
 368                                            BusNumber);
 369    if (BusHandler == NULL)
 370      return STATUS_NOT_FOUND;
 371
 372    Status = BusHandler->AssignSlotResources(BusHandler,
 373                                             BusNumber,
 374                                             RegistryPath,
 375                                             DriverClassName,
 376                                             DriverObject,
 377                                             DeviceObject,
 378                                             SlotNumber,
 379                                             AllocatedResources);
 380
 381    HaliDereferenceBusHandler(BusHandler);
 382
 383    return Status;
 384 }
 385
 386
 387 ULONG STDCALL
 388 HalGetBusData(BUS_DATA_TYPE BusDataType,
 389               ULONG BusNumber,
 390               ULONG SlotNumber,
 391               PVOID Buffer,
 392               ULONG Length)
 393 {
 394    return (HalGetBusDataByOffset(BusDataType,
 395                                  BusNumber,
 396                                  SlotNumber,
 397                                  Buffer,
 398                                  0,
 399                                  Length));
 400 }
 401
 402
 403 ULONG STDCALL
 404 HalGetBusDataByOffset(BUS_DATA_TYPE BusDataType,
 405                       ULONG BusNumber,
 406                       ULONG SlotNumber,
 407                       PVOID Buffer,
 408                       ULONG Offset,
 409                       ULONG Length)
 410 {
 411    PBUS_HANDLER BusHandler;
 412    ULONG Result;
 413
 414    BusHandler = HaliReferenceHandlerForConfigSpace(BusDataType,
 415                                                    BusNumber);
 416    if (BusHandler == NULL)
 417      return 0;
 418
 419    Result = BusHandler->GetBusData(BusHandler,
 420                                    BusNumber,
 421                                    SlotNumber,
 422                                    Buffer,
 423                                    Offset,
 424                                    Length);
 425
 426    HaliDereferenceBusHandler (BusHandler);
 427
 428    return Result;
 429 }
 430
 431
 432 ULONG STDCALL
 433 HalGetInterruptVector(INTERFACE_TYPE InterfaceType,
 434                       ULONG BusNumber,
 435                       ULONG BusInterruptLevel,
 436                       ULONG BusInterruptVector,
 437                       PKIRQL Irql,
 438                       PKAFFINITY Affinity)
 439 {
 440    PBUS_HANDLER BusHandler;
 441    ULONG Result;
 442
 443    BusHandler = HaliReferenceHandlerForBus(InterfaceType,
 444                                            BusNumber);
 445    if (BusHandler == NULL)
 446      return 0;
 447
 448    Result = BusHandler->GetInterruptVector(BusHandler,
 449                                            BusNumber,
 450                                            BusInterruptLevel,
 451                                            BusInterruptVector,
 452                                            Irql,
 453                                            Affinity);
 454
 455    HaliDereferenceBusHandler(BusHandler);
 456
 457    return Result;
 458 }
 459
 460
 461 ULONG STDCALL
 462 HalSetBusData(BUS_DATA_TYPE BusDataType,
 463               ULONG BusNumber,
 464               ULONG SlotNumber,
 465               PVOID Buffer,
 466               ULONG Length)
 467 {
 468    return (HalSetBusDataByOffset(BusDataType,
 469                                  BusNumber,
 470                                  SlotNumber,
 471                                  Buffer,
 472                                  0,
 473                                  Length));
 474 }
 475
 476
 477 ULONG STDCALL
 478 HalSetBusDataByOffset(BUS_DATA_TYPE BusDataType,
 479                       ULONG BusNumber,
 480                       ULONG SlotNumber,
 481                       PVOID Buffer,
 482                       ULONG Offset,
 483                       ULONG Length)
 484 {
 485    PBUS_HANDLER BusHandler;
 486    ULONG Result;
 487
 488    BusHandler = HaliReferenceHandlerForConfigSpace(BusDataType,
 489                                                    BusNumber);
 490    if (BusHandler == NULL)
 491      return 0;
 492
 493    Result = BusHandler->SetBusData(BusHandler,
 494                                    BusNumber,
 495                                    SlotNumber,
 496                                    Buffer,
 497                                    Offset,
 498                                    Length);
 499
 500    HaliDereferenceBusHandler(BusHandler);
 501
 502    return Result;
 503 }
 504
 505
 506 BOOLEAN STDCALL
 507 HalTranslateBusAddress(INTERFACE_TYPE InterfaceType,
 508                        ULONG BusNumber,
 509                        PHYSICAL_ADDRESS BusAddress,
 510                        PULONG AddressSpace,
 511                        PPHYSICAL_ADDRESS TranslatedAddress)
 512 {
 513    PBUS_HANDLER BusHandler;
 514    BOOLEAN Result;
 515
 516    BusHandler = HaliReferenceHandlerForBus(InterfaceType,
 517                                            BusNumber);
 518    if (BusHandler == NULL)
 519      return FALSE;
 520
 521    Result = BusHandler->TranslateBusAddress(BusHandler,
 522                                             BusNumber,
 523                                             BusAddress,
 524                                             AddressSpace,
 525                                             TranslatedAddress);
 526
 527    HaliDereferenceBusHandler(BusHandler);
 528
 529    return Result;
 530 }
 531
 532 /* EOF */