EdkModulePkg/Bus/Pci/IdeBus/Dxe/idebus.c

   1 /** @file
   2   Copyright (c) 2006, Intel Corporation
   3   All rights reserved. This program and the accompanying materials
   4   are licensed and made available under the terms and conditions of the BSD License
   5   which accompanies this distribution.  The full text of the license may be found at
   6   http://opensource.org/licenses/bsd-license.php
   7
   8   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
   9   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  10
  11   @par Revision Reference:
  12   This module is modified from DXE\IDE module for Ide Contriller Init support
  13
  14 **/
  15
  16 #include "idebus.h"
  17
  18 #define PCI_CLASS_MASS_STORAGE  0x01
  19 #define PCI_SUB_CLASS_IDE       0x01
  20
  21
  22 //
  23 // IDE Bus Driver Binding Protocol Instance
  24 //
  25 EFI_DRIVER_BINDING_PROTOCOL gIDEBusDriverBinding = {
  26   IDEBusDriverBindingSupported,
  27   IDEBusDriverBindingStart,
  28   IDEBusDriverBindingStop,
  29   0x10,
  30   NULL,
  31   NULL
  32 };
  33
  34 //
  35 // ***********************************************************************************
  36 // IDEBusDriverBindingSupported
  37 // ***********************************************************************************
  38 //
  39 /**
  40   Register Driver Binding protocol for this driver.
  41
  42   @param[in] This   -- A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
  43   @param[in] ControllerHandle    -- The handle of the controller to test.
  44   @param[in] RemainingDevicePath -- A pointer to the remaining portion of a device path.
  45
  46   @retval  EFI_SUCCESS Driver loaded.
  47   @retval  other Driver not loaded.
  48
  49 **/
  50 EFI_STATUS
  51 EFIAPI
  52 IDEBusDriverBindingSupported (
  53   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
  54   IN EFI_HANDLE                   Controller,
  55   IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
  56   )
  57 // TODO:    Controller - add argument and description to function comment
  58 // TODO:    EFI_UNSUPPORTED - add return value to function comment
  59 {
  60   EFI_STATUS                        Status;
  61   EFI_DEVICE_PATH_PROTOCOL          *ParentDevicePath;
  62   EFI_DEV_PATH                      *Node;
  63   EFI_IDE_CONTROLLER_INIT_PROTOCOL  *IdeInit;
  64
  65   if (RemainingDevicePath != NULL) {
  66     Node = (EFI_DEV_PATH *) RemainingDevicePath;
  67     if (Node->DevPath.Type != MESSAGING_DEVICE_PATH ||
  68         Node->DevPath.SubType != MSG_ATAPI_DP ||
  69         DevicePathNodeLength(&Node->DevPath) != sizeof(ATAPI_DEVICE_PATH)) {
  70       return EFI_UNSUPPORTED;
  71     }
  72   }
  73
  74   //
  75   // Open the IO Abstraction(s) needed to perform the supported test
  76   //
  77   Status = gBS->OpenProtocol (
  78                   Controller,
  79                   &gEfiDevicePathProtocolGuid,
  80                   (VOID **) &ParentDevicePath,
  81                   This->DriverBindingHandle,
  82                   Controller,
  83                   EFI_OPEN_PROTOCOL_BY_DRIVER
  84                   );
  85   if (Status == EFI_ALREADY_STARTED) {
  86     return EFI_SUCCESS;
  87   }
  88
  89   if (EFI_ERROR (Status)) {
  90     return Status;
  91   }
  92
  93   //
  94   // Clsoe protocol, don't use device path protocol in the .Support() function
  95   //
  96   gBS->CloseProtocol (
  97         Controller,
  98         &gEfiDevicePathProtocolGuid,
  99         This->DriverBindingHandle,
 100         Controller
 101         );
 102
 103   //
 104   // Verify the Ide Controller Init Protocol, which installed by the
 105   // IdeController module.
 106   // Note 1: PciIo protocol has been opened BY_DRIVER by ide_init, so We can't
 107   //         open BY_DRIVER here) That's why we don't check pciio protocol
 108   // Note 2: ide_init driver check ide controller's pci config space, so we dont
 109   //         check here any more to save code size
 110   //
 111   Status = gBS->OpenProtocol (
 112                   Controller,
 113                   &gEfiIdeControllerInitProtocolGuid,
 114                   (VOID **) &IdeInit,
 115                   This->DriverBindingHandle,
 116                   Controller,
 117                   EFI_OPEN_PROTOCOL_BY_DRIVER
 118                   );
 119
 120   if (Status == EFI_ALREADY_STARTED) {
 121     return EFI_SUCCESS;
 122   }
 123
 124   //
 125   // If protocols were opened normally, closed it
 126   //
 127   gBS->CloseProtocol (
 128         Controller,
 129         &gEfiIdeControllerInitProtocolGuid,
 130         This->DriverBindingHandle,
 131         Controller
 132         );
 133
 134   return Status;
 135 }
 136
 137 //
 138 // ***********************************************************************************
 139 // IDEBusDriverBindingStart
 140 // ***********************************************************************************
 141 //
 142 /**
 143   Start this driver on Controller by detecting all disks and installing
 144   BlockIo protocol on them.
 145
 146   @param  This Protocol instance pointer.
 147   @param  Controller Handle of device to bind driver to.
 148   @param  RemainingDevicePath Not used, always produce all possible children.
 149
 150   @retval  EFI_SUCCESS This driver is added to ControllerHandle.
 151   @retval  EFI_ALREADY_STARTED This driver is already running on ControllerHandle.
 152   @retval  other This driver does not support this device.
 153
 154 **/
 155 EFI_STATUS
 156 EFIAPI
 157 IDEBusDriverBindingStart (
 158   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
 159   IN EFI_HANDLE                   Controller,
 160   IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
 161   )
 162 {
 163   EFI_STATUS                        Status;
 164   EFI_STATUS                        SavedStatus;
 165   EFI_PCI_IO_PROTOCOL               *PciIo;
 166   EFI_DEVICE_PATH_PROTOCOL          *ParentDevicePath;
 167   EFI_DEV_PATH                      *Node;
 168   UINT8                             IdeChannel;
 169   UINT8                             BeginningIdeChannel;
 170   UINT8                             EndIdeChannel;
 171   UINT8                             IdeDevice;
 172   UINT8                             BeginningIdeDevice;
 173   UINT8                             EndIdeDevice;
 174   IDE_BLK_IO_DEV                    *IdeBlkIoDevice[IdeMaxChannel][IdeMaxDevice];
 175   IDE_BLK_IO_DEV                    *IdeBlkIoDevicePtr;
 176   IDE_REGISTERS_BASE_ADDR           IdeRegsBaseAddr[IdeMaxChannel];
 177   ATA_TRANSFER_MODE                 TransferMode;
 178   ATA_DRIVE_PARMS                   DriveParameters;
 179   EFI_DEV_PATH                      NewNode;
 180   UINT8                             ConfigurationOptions;
 181   UINT16                            CommandBlockBaseAddr;
 182   UINT16                            ControlBlockBaseAddr;
 183   UINTN                             DataSize;
 184   UINT32                            Attributes;
 185   IDE_BUS_DRIVER_PRIVATE_DATA       *IdeBusDriverPrivateData;
 186
 187   //
 188   // Local variables declaration for IdeControllerInit support
 189   //
 190   EFI_IDE_CONTROLLER_INIT_PROTOCOL  *IdeInit;
 191   BOOLEAN                           EnumAll;
 192   BOOLEAN                           ChannelEnabled;
 193   UINT8                             ChannelCount;
 194   UINT8                             MaxDevices;
 195   EFI_IDENTIFY_DATA                 IdentifyData;
 196   EFI_ATA_COLLECTIVE_MODE           *SupportedModes;
 197
 198   IdeBusDriverPrivateData = NULL;
 199   SupportedModes          = NULL;
 200
 201   //
 202   // Perform IdeBus initialization
 203   //
 204   Status = gBS->OpenProtocol (
 205                   Controller,
 206                   &gEfiDevicePathProtocolGuid,
 207                   (VOID **) &ParentDevicePath,
 208                   This->DriverBindingHandle,
 209                   Controller,
 210                   EFI_OPEN_PROTOCOL_BY_DRIVER
 211                   );
 212   if ((EFI_ERROR (Status)) && (Status != EFI_ALREADY_STARTED)) {
 213     return Status;
 214   }
 215
 216   //
 217   // Now open the IDE_CONTROLLER_INIT protocol. Step7.1
 218   //
 219   Status = gBS->OpenProtocol (
 220                   Controller,
 221                   &gEfiIdeControllerInitProtocolGuid,
 222                   (VOID **) &IdeInit,
 223                   This->DriverBindingHandle,
 224                   Controller,
 225                   EFI_OPEN_PROTOCOL_BY_DRIVER
 226                   );
 227
 228   //
 229   // The following OpenProtocol function with _GET_PROTOCOL attribute and
 230   // will not return EFI_ALREADY_STARTED, so save it for now
 231   //
 232   SavedStatus = Status;
 233
 234   if ((EFI_ERROR (Status)) && (Status != EFI_ALREADY_STARTED)) {
 235     DEBUG ((EFI_D_ERROR, "Open Init, Status=%x", Status));
 236     //
 237     // open protocol is not SUCCESS or not ALREADY_STARTED, error exit
 238     //
 239     goto ErrorExit;
 240   }
 241
 242   //
 243   // Save Enumall and ChannelCount. Step7.2
 244   //
 245   EnumAll       = IdeInit->EnumAll;
 246   ChannelCount  = IdeInit->ChannelCount;
 247
 248   //
 249   // Consume PCI I/O protocol. Note that the OpenProtocol with _GET_PROTOCOL
 250   // attribute will not return EFI_ALREADY_STARTED
 251   //
 252   Status = gBS->OpenProtocol (
 253                   Controller,
 254                   &gEfiPciIoProtocolGuid,
 255                   (VOID **) &PciIo,
 256                   This->DriverBindingHandle,
 257                   Controller,
 258                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
 259                   );
 260   if (EFI_ERROR (Status)) {
 261     DEBUG ((EFI_D_ERROR, "Open PciIo, Status=%x", Status));
 262     goto ErrorExit;
 263   }
 264
 265   //
 266   // We must check EFI_ALREADY_STARTED because many ATAPI devices are removable
 267   //
 268   if (SavedStatus != EFI_ALREADY_STARTED) {
 269     IdeBusDriverPrivateData = AllocatePool (sizeof (IDE_BUS_DRIVER_PRIVATE_DATA));
 270     if (IdeBusDriverPrivateData == NULL) {
 271       Status = EFI_OUT_OF_RESOURCES;
 272       goto ErrorExit;
 273     }
 274
 275     ZeroMem (IdeBusDriverPrivateData, sizeof (IDE_BUS_DRIVER_PRIVATE_DATA));
 276     Status = gBS->InstallMultipleProtocolInterfaces (
 277                     &Controller,
 278                     &gEfiCallerIdGuid,
 279                     IdeBusDriverPrivateData,
 280                     NULL
 281                     );
 282     if (EFI_ERROR (Status)) {
 283       goto ErrorExit;
 284     }
 285
 286   } else {
 287     Status = gBS->OpenProtocol (
 288                     Controller,
 289                     &gEfiCallerIdGuid,
 290                     (VOID **) &IdeBusDriverPrivateData,
 291                     This->DriverBindingHandle,
 292                     Controller,
 293                     EFI_OPEN_PROTOCOL_GET_PROTOCOL
 294                     );
 295     if (EFI_ERROR (Status)) {
 296       IdeBusDriverPrivateData = NULL;
 297       goto ErrorExit;
 298     }
 299   }
 300
 301   Status = PciIo->Attributes (
 302                     PciIo,
 303                     EfiPciIoAttributeOperationEnable,
 304                     EFI_PCI_DEVICE_ENABLE,
 305                     NULL
 306                     );
 307   if (EFI_ERROR (Status)) {
 308     goto ErrorExit;
 309   }
 310
 311   //
 312   // Read the environment variable that contains the IDEBus Driver's
 313   // Config options that were set by the Driver Configuration Protocol
 314   //
 315   DataSize = sizeof (ConfigurationOptions);
 316   Status = gRT->GetVariable (
 317                   (CHAR16 *) L"Configuration",
 318                   &gEfiCallerIdGuid,
 319                   &Attributes,
 320                   &DataSize,
 321                   &ConfigurationOptions
 322                   );
 323   if (EFI_ERROR (Status)) {
 324     ConfigurationOptions = 0x0f;
 325   }
 326
 327   if (EnumAll) {
 328     //
 329     // If IdeInit->EnumAll is TRUE, must enumerate all IDE device anyway
 330     //
 331     BeginningIdeChannel = IdePrimary;
 332     EndIdeChannel       = IdeSecondary;
 333     BeginningIdeDevice  = IdeMaster;
 334     EndIdeDevice        = IdeSlave;
 335   } else if (RemainingDevicePath == NULL) {
 336     //
 337     // RemainingDevicePath is NULL, scan IDE bus for each device;
 338     //
 339     BeginningIdeChannel = IdePrimary;
 340     EndIdeChannel       = IdeSecondary;
 341     BeginningIdeDevice  = IdeMaster;
 342     //
 343     // default, may be redefined by IdeInit
 344     //
 345     EndIdeDevice = IdeSlave;
 346   } else {
 347     //
 348     // RemainingDevicePath is not NULL, only scan the specified device.
 349     //
 350     Node                = (EFI_DEV_PATH *) RemainingDevicePath;
 351     BeginningIdeChannel = Node->Atapi.PrimarySecondary;
 352     EndIdeChannel       = BeginningIdeChannel;
 353     BeginningIdeDevice  = Node->Atapi.SlaveMaster;
 354     EndIdeDevice        = BeginningIdeDevice;
 355   }
 356
 357   //
 358   // Obtain IDE IO port registers' base addresses
 359   //
 360   Status = GetIdeRegistersBaseAddr (PciIo, IdeRegsBaseAddr);
 361   if (EFI_ERROR (Status)) {
 362     goto ErrorExit;
 363   }
 364
 365   //
 366   // Report status code: begin IdeBus initialization
 367   //
 368   REPORT_STATUS_CODE_WITH_DEVICE_PATH (
 369     EFI_PROGRESS_CODE,
 370     (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_PC_RESET),
 371     ParentDevicePath
 372     );
 373
 374   //
 375   // Strictly follow the enumeration based on IDE_CONTROLLER_INIT protocol
 376   //
 377   for (IdeChannel = BeginningIdeChannel; IdeChannel <= EndIdeChannel; IdeChannel++) {
 378
 379     IdeInit->NotifyPhase (IdeInit, EfiIdeBeforeChannelEnumeration, IdeChannel);
 380
 381     //
 382     // now obtain channel information fron IdeControllerInit protocol. Step9
 383     //
 384     Status = IdeInit->GetChannelInfo (
 385                         IdeInit,
 386                         IdeChannel,
 387                         &ChannelEnabled,
 388                         &MaxDevices
 389                         );
 390     if (EFI_ERROR (Status)) {
 391       DEBUG ((EFI_D_ERROR, "[GetChannel, Status=%x]", Status));
 392       continue;
 393     }
 394
 395     if (!ChannelEnabled) {
 396       continue;
 397     }
 398
 399     EndIdeDevice = (UINT8) EFI_MIN ((MaxDevices - 1), EndIdeDevice);
 400
 401     //
 402     // Now inform the IDE Controller Init Module. Sept10
 403     //
 404     IdeInit->NotifyPhase (IdeInit, EfiIdeBeforeChannelReset, IdeChannel);
 405
 406     //
 407     // No reset channel function implemented. Sept11
 408     //
 409     IdeInit->NotifyPhase (IdeInit, EfiIdeAfterChannelReset, IdeChannel);
 410
 411     //
 412     // Step13
 413     //
 414     IdeInit->NotifyPhase (
 415               IdeInit,
 416               EfiIdeBusBeforeDevicePresenceDetection,
 417               IdeChannel
 418               );
 419     //
 420     // -- 1st inner loop --- Master/Slave ------------  Step14
 421     //
 422     for (IdeDevice = BeginningIdeDevice; IdeDevice <= EndIdeDevice; IdeDevice++) {
 423       //
 424       // Check whether the configuration options allow this device
 425       //
 426       if (!(ConfigurationOptions & (1 << (IdeChannel * 2 + IdeDevice)))) {
 427         continue;
 428       }
 429
 430       //
 431       // The device has been scanned in another Start(), No need to scan it again
 432       // for perf optimization.
 433       //
 434       if (IdeBusDriverPrivateData->HaveScannedDevice[IdeChannel * 2 + IdeDevice]) {
 435         continue;
 436       }
 437
 438       //
 439       // create child handle for the detected device.
 440       //
 441       IdeBlkIoDevice[IdeChannel][IdeDevice] = AllocatePool (sizeof (IDE_BLK_IO_DEV));
 442       if (IdeBlkIoDevice[IdeChannel][IdeDevice] == NULL) {
 443         continue;
 444       }
 445
 446       IdeBlkIoDevicePtr = IdeBlkIoDevice[IdeChannel][IdeDevice];
 447
 448       ZeroMem (IdeBlkIoDevicePtr, sizeof (IDE_BLK_IO_DEV));
 449
 450       IdeBlkIoDevicePtr->Signature  = IDE_BLK_IO_DEV_SIGNATURE;
 451       IdeBlkIoDevicePtr->Channel    = IdeChannel;
 452       IdeBlkIoDevicePtr->Device     = IdeDevice;
 453
 454       //
 455       // initialize Block IO interface's Media pointer
 456       //
 457       IdeBlkIoDevicePtr->BlkIo.Media = &IdeBlkIoDevicePtr->BlkMedia;
 458
 459       //
 460       // Initialize IDE IO port addresses, including Command Block registers
 461       // and Control Block registers
 462       //
 463       IdeBlkIoDevicePtr->IoPort = AllocatePool (sizeof (IDE_BASE_REGISTERS));
 464       if (IdeBlkIoDevicePtr->IoPort == NULL) {
 465         continue;
 466       }
 467
 468       ZeroMem (IdeBlkIoDevicePtr->IoPort, sizeof (IDE_BASE_REGISTERS));
 469       CommandBlockBaseAddr = IdeRegsBaseAddr[IdeChannel].CommandBlockBaseAddr;
 470       ControlBlockBaseAddr = IdeRegsBaseAddr[IdeChannel].ControlBlockBaseAddr;
 471
 472       IdeBlkIoDevicePtr->IoPort->Data = CommandBlockBaseAddr;
 473       (*(UINT16 *) &IdeBlkIoDevicePtr->IoPort->Reg1) = (UINT16) (CommandBlockBaseAddr + 0x01);
 474       IdeBlkIoDevicePtr->IoPort->SectorCount = (UINT16) (CommandBlockBaseAddr + 0x02);
 475       IdeBlkIoDevicePtr->IoPort->SectorNumber = (UINT16) (CommandBlockBaseAddr + 0x03);
 476       IdeBlkIoDevicePtr->IoPort->CylinderLsb = (UINT16) (CommandBlockBaseAddr + 0x04);
 477       IdeBlkIoDevicePtr->IoPort->CylinderMsb = (UINT16) (CommandBlockBaseAddr + 0x05);
 478       IdeBlkIoDevicePtr->IoPort->Head = (UINT16) (CommandBlockBaseAddr + 0x06);
 479       (*(UINT16 *) &IdeBlkIoDevicePtr->IoPort->Reg) = (UINT16) (CommandBlockBaseAddr + 0x07);
 480
 481       (*(UINT16 *) &IdeBlkIoDevicePtr->IoPort->Alt) = ControlBlockBaseAddr;
 482       IdeBlkIoDevicePtr->IoPort->DriveAddress = (UINT16) (ControlBlockBaseAddr + 0x01);
 483
 484       IdeBlkIoDevicePtr->IoPort->MasterSlave = (UINT16) ((IdeDevice == IdeMaster) ? 1 : 0);
 485
 486       IdeBlkIoDevicePtr->PciIo = PciIo;
 487       IdeBlkIoDevicePtr->IdeBusDriverPrivateData = IdeBusDriverPrivateData;
 488       IdeBlkIoDevicePtr->IoPort->BusMasterBaseAddr = IdeRegsBaseAddr[IdeChannel].BusMasterBaseAddr;
 489
 490       //
 491       // Discover device, now!
 492       //
 493       PERF_START (0, "DiscoverIdeDevice", "IDE", 0);
 494       Status = DiscoverIdeDevice (IdeBlkIoDevicePtr);
 495       PERF_END (0, "DiscoverIdeDevice", "IDE", 0);
 496
 497       IdeBusDriverPrivateData->HaveScannedDevice[IdeChannel * 2 + IdeDevice]  = TRUE;
 498       IdeBusDriverPrivateData->DeviceProcessed[IdeChannel * 2 + IdeDevice]    = FALSE;
 499
 500       if (!EFI_ERROR (Status)) {
 501         //
 502         // Set Device Path
 503         //
 504         ZeroMem (&NewNode, sizeof (NewNode));
 505         NewNode.DevPath.Type    = MESSAGING_DEVICE_PATH;
 506         NewNode.DevPath.SubType = MSG_ATAPI_DP;
 507         SetDevicePathNodeLength (&NewNode.DevPath, sizeof (ATAPI_DEVICE_PATH));
 508
 509         NewNode.Atapi.PrimarySecondary  = (UINT8) IdeBlkIoDevicePtr->Channel;
 510         NewNode.Atapi.SlaveMaster       = (UINT8) IdeBlkIoDevicePtr->Device;
 511         NewNode.Atapi.Lun               = IdeBlkIoDevicePtr->Lun;
 512         IdeBlkIoDevicePtr->DevicePath = AppendDevicePathNode (
 513                                           ParentDevicePath,
 514                                           &NewNode.DevPath
 515                                           );
 516         if (IdeBlkIoDevicePtr->DevicePath == NULL) {
 517           ReleaseIdeResources (IdeBlkIoDevicePtr);
 518           continue;
 519         }
 520
 521         //
 522         // Submit identify data to IDE controller init driver
 523         //
 524         CopyMem (&IdentifyData, IdeBlkIoDevicePtr->pIdData, sizeof (IdentifyData));
 525         // IdentifyData  = *IdeBlkIoDevicePtr->pIdData;
 526         IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = TRUE;
 527         IdeInit->SubmitData (IdeInit, IdeChannel, IdeDevice, &IdentifyData);
 528       } else {
 529         //
 530         // Device detection failed
 531         //
 532         IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE;
 533         IdeInit->SubmitData (IdeInit, IdeChannel, IdeDevice, NULL);
 534         ReleaseIdeResources (IdeBlkIoDevicePtr);
 535         IdeBlkIoDevicePtr = NULL;
 536       }
 537       //
 538       // end of 1st inner loop ---
 539       //
 540     }
 541     //
 542     // end of 1st outer loop =========
 543     //
 544   }
 545
 546   //
 547   // = 2nd outer loop == Primary/Secondary =================
 548   //
 549   for (IdeChannel = BeginningIdeChannel; IdeChannel <= EndIdeChannel; IdeChannel++) {
 550
 551     //
 552     // -- 2nd inner loop --- Master/Slave --------
 553     //
 554     for (IdeDevice = BeginningIdeDevice; IdeDevice <= EndIdeDevice; IdeDevice++) {
 555
 556       if (IdeBusDriverPrivateData->DeviceProcessed[IdeChannel * 2 + IdeDevice]) {
 557         continue;
 558       }
 559
 560       if (!IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice]) {
 561         continue;
 562       }
 563
 564       Status = IdeInit->CalculateMode (
 565                           IdeInit,
 566                           IdeChannel,
 567                           IdeDevice,
 568                           &SupportedModes
 569                           );
 570       if (EFI_ERROR (Status)) {
 571         DEBUG ((EFI_D_ERROR, "[bStStp20S=%x]", Status));
 572         continue;
 573       }
 574
 575       IdeBlkIoDevicePtr = IdeBlkIoDevice[IdeChannel][IdeDevice];
 576
 577       //
 578       // Set best supported PIO mode on this IDE device
 579       //
 580       if (SupportedModes->PioMode.Mode <= ATA_PIO_MODE_2) {
 581         TransferMode.ModeCategory = ATA_MODE_CATEGORY_DEFAULT_PIO;
 582       } else {
 583         TransferMode.ModeCategory = ATA_MODE_CATEGORY_FLOW_PIO;
 584       }
 585
 586       TransferMode.ModeNumber = (UINT8) (SupportedModes->PioMode.Mode);
 587
 588       if (SupportedModes->ExtModeCount == 0){
 589         Status                  = SetDeviceTransferMode (IdeBlkIoDevicePtr, &TransferMode);
 590
 591         if (EFI_ERROR (Status)) {
 592           IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE;
 593           ReleaseIdeResources (IdeBlkIoDevicePtr);
 594           IdeBlkIoDevicePtr = NULL;
 595           continue;
 596         }
 597       }
 598
 599       //
 600       // Set supported DMA mode on this IDE device. Note that UDMA & MDMA cann't
 601       // be set together. Only one DMA mode can be set to a device. If setting
 602       // DMA mode operation fails, we can continue moving on because we only use
 603       // PIO mode at boot time. DMA modes are used by certain kind of OS booting
 604       //
 605       if (SupportedModes->UdmaMode.Valid) {
 606
 607         TransferMode.ModeCategory = ATA_MODE_CATEGORY_UDMA;
 608         TransferMode.ModeNumber   = (UINT8) (SupportedModes->UdmaMode.Mode);
 609         Status                    = SetDeviceTransferMode (IdeBlkIoDevicePtr, &TransferMode);
 610
 611         if (EFI_ERROR (Status)) {
 612           IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE;
 613           ReleaseIdeResources (IdeBlkIoDevicePtr);
 614           IdeBlkIoDevicePtr = NULL;
 615           continue;
 616         }
 617
 618         EnableInterrupt (IdeBlkIoDevicePtr);
 619       } else if (SupportedModes->MultiWordDmaMode.Valid) {
 620
 621         TransferMode.ModeCategory = ATA_MODE_CATEGORY_MDMA;
 622         TransferMode.ModeNumber   = (UINT8) SupportedModes->MultiWordDmaMode.Mode;
 623         Status                    = SetDeviceTransferMode (IdeBlkIoDevicePtr, &TransferMode);
 624
 625         if (EFI_ERROR (Status)) {
 626           IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE;
 627           ReleaseIdeResources (IdeBlkIoDevicePtr);
 628           IdeBlkIoDevicePtr = NULL;
 629           continue;
 630         }
 631
 632         EnableInterrupt (IdeBlkIoDevicePtr);
 633       }
 634       //
 635       // Init driver parameters
 636       //
 637       DriveParameters.Sector          = (UINT8) IdeBlkIoDevicePtr->pIdData->AtaData.sectors_per_track;
 638       DriveParameters.Heads           = (UINT8) (IdeBlkIoDevicePtr->pIdData->AtaData.heads - 1);
 639       DriveParameters.MultipleSector  = (UINT8) IdeBlkIoDevicePtr->pIdData->AtaData.multi_sector_cmd_max_sct_cnt;
 640       //
 641       // Set Parameters for the device:
 642       // 1) Init
 643       // 2) Establish the block count for READ/WRITE MULTIPLE (EXT) command
 644       //
 645       if ((IdeBlkIoDevicePtr->Type == IdeHardDisk) || (IdeBlkIoDevicePtr->Type == Ide48bitAddressingHardDisk)) {
 646         Status = SetDriveParameters (IdeBlkIoDevicePtr, &DriveParameters);
 647       }
 648
 649       //
 650       // Record PIO mode used in private data
 651       //
 652       IdeBlkIoDevicePtr->PioMode = SupportedModes->PioMode.Mode;
 653
 654       //
 655       // Set IDE controller Timing Blocks in the PCI Configuration Space
 656       //
 657       IdeInit->SetTiming (IdeInit, IdeChannel, IdeDevice, SupportedModes);
 658
 659       //
 660       // Add Component Name for the IDE/ATAPI device that was discovered.
 661       //
 662       IdeBlkIoDevicePtr->ControllerNameTable = NULL;
 663       ADD_NAME (IdeBlkIoDevicePtr);
 664
 665       Status = gBS->InstallMultipleProtocolInterfaces (
 666                       &IdeBlkIoDevicePtr->Handle,
 667                       &gEfiDevicePathProtocolGuid,
 668                       IdeBlkIoDevicePtr->DevicePath,
 669                       &gEfiBlockIoProtocolGuid,
 670                       &IdeBlkIoDevicePtr->BlkIo,
 671                       &gEfiDiskInfoProtocolGuid,
 672                       &IdeBlkIoDevicePtr->DiskInfo,
 673                       NULL
 674                       );
 675
 676       if (EFI_ERROR (Status)) {
 677         ReleaseIdeResources (IdeBlkIoDevicePtr);
 678       }
 679
 680       gBS->OpenProtocol (
 681             Controller,
 682             &gEfiPciIoProtocolGuid,
 683             (VOID **) &PciIo,
 684             This->DriverBindingHandle,
 685             IdeBlkIoDevicePtr->Handle,
 686             EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
 687             );
 688
 689       IdeBusDriverPrivateData->DeviceProcessed[IdeChannel * 2 + IdeDevice] = TRUE;
 690
 691       //
 692       // Report status code: device eanbled!
 693       //
 694       REPORT_STATUS_CODE_WITH_DEVICE_PATH (
 695         EFI_PROGRESS_CODE,
 696         (EFI_IO_BUS_ATA_ATAPI | EFI_P_PC_ENABLE),
 697         IdeBlkIoDevicePtr->DevicePath
 698         );
 699       //
 700       // end of 2nd inner loop ----
 701       //
 702     }
 703     //
 704     // end of 2nd outer loop ==========
 705     //
 706   }
 707
 708   //
 709   // All configurations done! Notify IdeController to do post initialization
 710   // work such as saving IDE controller PCI settings for S3 resume
 711   //
 712   IdeInit->NotifyPhase (IdeInit, EfiIdeBusPhaseMaximum, 0);
 713
 714   if (SupportedModes != NULL) {
 715     gBS->FreePool (SupportedModes);
 716   }
 717
 718   PERF_START (0, "Finish IDE detection", "IDE", 1);
 719   PERF_END (0, "Finish IDE detection", "IDE", 0);
 720
 721   return EFI_SUCCESS;
 722
 723 ErrorExit:
 724
 725   //
 726   // Report error code: controller error
 727   //
 728   REPORT_STATUS_CODE_WITH_DEVICE_PATH (
 729     EFI_ERROR_CODE | EFI_ERROR_MINOR,
 730     (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_EC_CONTROLLER_ERROR),
 731     ParentDevicePath
 732     );
 733
 734   gBS->CloseProtocol (
 735         Controller,
 736         &gEfiIdeControllerInitProtocolGuid,
 737         This->DriverBindingHandle,
 738         Controller
 739         );
 740
 741   gBS->UninstallMultipleProtocolInterfaces (
 742         Controller,
 743         &gEfiCallerIdGuid,
 744         IdeBusDriverPrivateData,
 745         NULL
 746         );
 747
 748   if (IdeBusDriverPrivateData != NULL) {
 749     gBS->FreePool (IdeBusDriverPrivateData);
 750   }
 751
 752   if (SupportedModes != NULL) {
 753     gBS->FreePool (SupportedModes);
 754   }
 755
 756   gBS->CloseProtocol (
 757         Controller,
 758         &gEfiPciIoProtocolGuid,
 759         This->DriverBindingHandle,
 760         Controller
 761         );
 762
 763   gBS->CloseProtocol (
 764         Controller,
 765         &gEfiDevicePathProtocolGuid,
 766         This->DriverBindingHandle,
 767         Controller
 768         );
 769
 770   return Status;
 771
 772 }
 773
 774 //
 775 // ***********************************************************************************
 776 // IDEBusDriverBindingStop
 777 // ***********************************************************************************
 778 //
 779 /**
 780   Stop this driver on Controller Handle.
 781
 782   @param  This Protocol instance pointer.
 783   @param  DeviceHandle Handle of device to stop driver on
 784   @param  NumberOfChildren Not used
 785   @param  ChildHandleBuffer Not used
 786
 787   @retval  EFI_SUCCESS This driver is removed DeviceHandle
 788   @retval  other This driver was not removed from this device
 789
 790 **/
 791 EFI_STATUS
 792 EFIAPI
 793 IDEBusDriverBindingStop (
 794   IN  EFI_DRIVER_BINDING_PROTOCOL     *This,
 795   IN  EFI_HANDLE                      Controller,
 796   IN  UINTN                           NumberOfChildren,
 797   IN  EFI_HANDLE                      *ChildHandleBuffer
 798   )
 799 // TODO:    Controller - add argument and description to function comment
 800 // TODO:    EFI_DEVICE_ERROR - add return value to function comment
 801 {
 802   EFI_STATUS                  Status;
 803   EFI_PCI_IO_PROTOCOL         *PciIo;
 804   BOOLEAN                     AllChildrenStopped;
 805   UINTN                       Index;
 806   IDE_BUS_DRIVER_PRIVATE_DATA *IdeBusDriverPrivateData;
 807
 808   IdeBusDriverPrivateData = NULL;
 809
 810   if (NumberOfChildren == 0) {
 811
 812     Status = gBS->OpenProtocol (
 813                     Controller,
 814                     &gEfiPciIoProtocolGuid,
 815                     (VOID **) &PciIo,
 816                     This->DriverBindingHandle,
 817                     Controller,
 818                     EFI_OPEN_PROTOCOL_GET_PROTOCOL
 819                     );
 820     if (!EFI_ERROR (Status)) {
 821       PciIo->Attributes (
 822               PciIo,
 823               EfiPciIoAttributeOperationDisable,
 824               EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO | EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO | EFI_PCI_DEVICE_ENABLE,
 825               NULL
 826               );
 827     }
 828
 829     gBS->OpenProtocol (
 830           Controller,
 831           &gEfiCallerIdGuid,
 832           (VOID **) &IdeBusDriverPrivateData,
 833           This->DriverBindingHandle,
 834           Controller,
 835           EFI_OPEN_PROTOCOL_GET_PROTOCOL
 836           );
 837
 838     gBS->UninstallMultipleProtocolInterfaces (
 839           Controller,
 840           &gEfiCallerIdGuid,
 841           IdeBusDriverPrivateData,
 842           NULL
 843           );
 844
 845     if (IdeBusDriverPrivateData != NULL) {
 846       gBS->FreePool (IdeBusDriverPrivateData);
 847     }
 848     //
 849     // Close the bus driver
 850     //
 851     gBS->CloseProtocol (
 852           Controller,
 853           &gEfiIdeControllerInitProtocolGuid,
 854           This->DriverBindingHandle,
 855           Controller
 856           );
 857     gBS->CloseProtocol (
 858           Controller,
 859           &gEfiPciIoProtocolGuid,
 860           This->DriverBindingHandle,
 861           Controller
 862           );
 863     gBS->CloseProtocol (
 864           Controller,
 865           &gEfiDevicePathProtocolGuid,
 866           This->DriverBindingHandle,
 867           Controller
 868           );
 869
 870     return EFI_SUCCESS;
 871   }
 872
 873   AllChildrenStopped = TRUE;
 874
 875   for (Index = 0; Index < NumberOfChildren; Index++) {
 876
 877     Status = DeRegisterIdeDevice (This, Controller, ChildHandleBuffer[Index]);
 878
 879     if (EFI_ERROR (Status)) {
 880       AllChildrenStopped = FALSE;
 881     }
 882   }
 883
 884   if (!AllChildrenStopped) {
 885     return EFI_DEVICE_ERROR;
 886   }
 887
 888   return EFI_SUCCESS;
 889 }
 890
 891 //
 892 // ***********************************************************************************
 893 // DeRegisterIdeDevice
 894 // ***********************************************************************************
 895 //
 896 /**
 897   Deregister an IDE device and free resources
 898
 899   @param  This Protocol instance pointer.
 900   @param  Controller Ide device handle
 901   @param  Handle Handle of device to deregister driver on
 902
 903   @return EFI_STATUS
 904
 905 **/
 906 EFI_STATUS
 907 DeRegisterIdeDevice (
 908   IN  EFI_DRIVER_BINDING_PROTOCOL    *This,
 909   IN  EFI_HANDLE                     Controller,
 910   IN  EFI_HANDLE                     Handle
 911   )
 912 // TODO:    EFI_SUCCESS - add return value to function comment
 913 {
 914   EFI_STATUS            Status;
 915   EFI_BLOCK_IO_PROTOCOL *BlkIo;
 916   IDE_BLK_IO_DEV        *IdeBlkIoDevice;
 917   EFI_PCI_IO_PROTOCOL   *PciIo;
 918   UINTN                 Index;
 919
 920   Status = gBS->OpenProtocol (
 921                   Handle,
 922                   &gEfiBlockIoProtocolGuid,
 923                   (VOID **) &BlkIo,
 924                   This->DriverBindingHandle,
 925                   Controller,
 926                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
 927                   );
 928   if (EFI_ERROR (Status)) {
 929     return Status;
 930   }
 931
 932   IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (BlkIo);
 933
 934   //
 935   // Report Status code: Device disabled
 936   //
 937   REPORT_STATUS_CODE_WITH_DEVICE_PATH (
 938     EFI_PROGRESS_CODE,
 939     (EFI_IO_BUS_ATA_ATAPI | EFI_P_PC_DISABLE),
 940     IdeBlkIoDevice->DevicePath
 941     );
 942
 943   //
 944   // Close the child handle
 945   //
 946   Status = gBS->CloseProtocol (
 947                   Controller,
 948                   &gEfiPciIoProtocolGuid,
 949                   This->DriverBindingHandle,
 950                   Handle
 951                   );
 952
 953   Status = gBS->UninstallMultipleProtocolInterfaces (
 954                   Handle,
 955                   &gEfiDevicePathProtocolGuid,
 956                   IdeBlkIoDevice->DevicePath,
 957                   &gEfiBlockIoProtocolGuid,
 958                   &IdeBlkIoDevice->BlkIo,
 959                   &gEfiDiskInfoProtocolGuid,
 960                   &IdeBlkIoDevice->DiskInfo,
 961                   NULL
 962                   );
 963
 964   if (EFI_ERROR (Status)) {
 965     gBS->OpenProtocol (
 966           Controller,
 967           &gEfiPciIoProtocolGuid,
 968           (VOID **) &PciIo,
 969           This->DriverBindingHandle,
 970           Handle,
 971           EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
 972           );
 973     return Status;
 974   }
 975
 976   //
 977   // Release allocated resources
 978   //
 979   Index = IdeBlkIoDevice->Channel * 2 + IdeBlkIoDevice->Device;
 980   IdeBlkIoDevice->IdeBusDriverPrivateData->HaveScannedDevice[Index] = FALSE;
 981
 982   ReleaseIdeResources (IdeBlkIoDevice);
 983
 984   return EFI_SUCCESS;
 985 }
 986
 987 //
 988 // ***********************************************************************************
 989 // IDEBlkIoReset
 990 // ***********************************************************************************
 991 //
 992 /**
 993   TODO:    This - add argument and description to function comment
 994   TODO:    ExtendedVerification - add argument and description to function comment
 995   TODO:    EFI_DEVICE_ERROR - add return value to function comment
 996
 997 **/
 998 EFI_STATUS
 999 EFIAPI
1000 IDEBlkIoReset (
1001   IN  EFI_BLOCK_IO_PROTOCOL   *This,
1002   IN  BOOLEAN                 ExtendedVerification
1003   )
1004 {
1005   IDE_BLK_IO_DEV  *IdeBlkIoDevice;
1006   EFI_STATUS      Status;
1007
1008   IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This);
1009   //
1010   // Requery IDE IO resources in case of the switch of native and legacy modes
1011   //
1012   ReassignIdeResources (IdeBlkIoDevice);
1013
1014   //
1015   // for ATA device, using ATA reset method
1016   //
1017   if (IdeBlkIoDevice->Type == IdeHardDisk) {
1018     return AtaSoftReset (IdeBlkIoDevice);
1019   }
1020
1021   if (IdeBlkIoDevice->Type == IdeUnknown) {
1022     return EFI_DEVICE_ERROR;
1023   }
1024
1025   //
1026   // for ATAPI device, using ATAPI reset method
1027   //
1028   Status = AtapiSoftReset (IdeBlkIoDevice);
1029   if (ExtendedVerification) {
1030     Status = AtaSoftReset (IdeBlkIoDevice);
1031   }
1032
1033   return Status;
1034 }
1035
1036 /**
1037   Read data from block io device
1038
1039   @param  This Protocol instance pointer.
1040   @param  MediaId The media ID of the device
1041   @param  LBA Starting LBA address to read data
1042   @param  BufferSize The size of data to be read
1043   @param  Buffer Caller supplied buffer to save data
1044
1045   @return read data status
1046
1047 **/
1048 EFI_STATUS
1049 EFIAPI
1050 IDEBlkIoReadBlocks (
1051   IN  EFI_BLOCK_IO_PROTOCOL   *This,
1052   IN  UINT32                  MediaId,
1053   IN  EFI_LBA                 LBA,
1054   IN  UINTN                   BufferSize,
1055   OUT VOID                    *Buffer
1056   )
1057 // TODO:    EFI_DEVICE_ERROR - add return value to function comment
1058 {
1059   IDE_BLK_IO_DEV  *IdeBlkIoDevice;
1060
1061   IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This);
1062
1063   //
1064   // Requery IDE IO resources in case of the switch of native and legacy modes
1065   //
1066   ReassignIdeResources (IdeBlkIoDevice);
1067
1068   //
1069   // For ATA compatible device, use ATA read block's mechanism
1070   //
1071   if (IdeBlkIoDevice->Type == IdeHardDisk ||
1072       IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) {
1073     return AtaBlkIoReadBlocks (
1074             IdeBlkIoDevice,
1075             MediaId,
1076             LBA,
1077             BufferSize,
1078             Buffer
1079             );
1080   }
1081
1082   if (IdeBlkIoDevice->Type == IdeUnknown) {
1083     return EFI_DEVICE_ERROR;
1084   }
1085
1086   //
1087   // for ATAPI device, using ATAPI read block's mechanism
1088   //
1089   return AtapiBlkIoReadBlocks (
1090           IdeBlkIoDevice,
1091           MediaId,
1092           LBA,
1093           BufferSize,
1094           Buffer
1095           );
1096
1097 }
1098
1099 /**
1100   Write data to block io device
1101
1102   @param  This Protocol instance pointer.
1103   @param  MediaId The media ID of the device
1104   @param  LBA Starting LBA address to write data
1105   @param  BufferSize The size of data to be written
1106   @param  Buffer Caller supplied buffer to save data
1107
1108   @return write data status
1109
1110 **/
1111 EFI_STATUS
1112 EFIAPI
1113 IDEBlkIoWriteBlocks (
1114   IN  EFI_BLOCK_IO_PROTOCOL   *This,
1115   IN  UINT32                  MediaId,
1116   IN  EFI_LBA                 LBA,
1117   IN  UINTN                   BufferSize,
1118   IN  VOID                    *Buffer
1119   )
1120 // TODO:    EFI_DEVICE_ERROR - add return value to function comment
1121 {
1122   IDE_BLK_IO_DEV  *IdeBlkIoDevice;
1123
1124   IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This);
1125   //
1126   // Requery IDE IO resources in case of the switch of native and legacy modes
1127   //
1128   ReassignIdeResources (IdeBlkIoDevice);
1129
1130   //
1131   // for ATA device, using ATA write block's mechanism
1132   //
1133   if (IdeBlkIoDevice->Type == IdeHardDisk ||
1134       IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) {
1135
1136     return AtaBlkIoWriteBlocks (
1137             IdeBlkIoDevice,
1138             MediaId,
1139             LBA,
1140             BufferSize,
1141             Buffer
1142             );
1143   }
1144
1145   if (IdeBlkIoDevice->Type == IdeUnknown) {
1146     return EFI_DEVICE_ERROR;
1147   }
1148
1149   //
1150   // for ATAPI device, using ATAPI write block's mechanism
1151   //
1152   return AtapiBlkIoWriteBlocks (
1153           IdeBlkIoDevice,
1154           MediaId,
1155           LBA,
1156           BufferSize,
1157           Buffer
1158           );
1159 }
1160
1161 //
1162 // ***********************************************************************************
1163 // IDEBlkIoFlushBlocks
1164 // ***********************************************************************************
1165 //
1166 /**
1167   TODO:    This - add argument and description to function comment
1168   TODO:    EFI_SUCCESS - add return value to function comment
1169 **/
1170 EFI_STATUS
1171 EFIAPI
1172 IDEBlkIoFlushBlocks (
1173   IN  EFI_BLOCK_IO_PROTOCOL   *This
1174   )
1175 {
1176   //
1177   // return directly
1178   //
1179   return EFI_SUCCESS;
1180 }
1181
1182 /**
1183   Return the results of the Inquiry command to a drive in InquiryData.
1184   Data format of Inquiry data is defined by the Interface GUID.
1185
1186   @param  This Protocol instance pointer.
1187   @param  InquiryData Results of Inquiry command to device
1188   @param  InquiryDataSize Size of InquiryData in bytes.
1189
1190   @retval  EFI_SUCCESS InquiryData valid
1191   @retval  EFI_NOT_FOUND Device does not support this data class
1192   @retval  EFI_DEVICE_ERROR Error reading InquiryData from device
1193   @retval  EFI_BUFFER_TOO_SMALL IntquiryDataSize not big enough
1194
1195 **/
1196 EFI_STATUS
1197 EFIAPI
1198 IDEDiskInfoInquiry (
1199   IN     EFI_DISK_INFO_PROTOCOL   *This,
1200   IN OUT VOID                     *InquiryData,
1201   IN OUT UINT32                   *InquiryDataSize
1202   )
1203 {
1204   IDE_BLK_IO_DEV  *IdeBlkIoDevice;
1205
1206   IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_DISK_INFO_THIS (This);
1207
1208   if (*InquiryDataSize < sizeof (INQUIRY_DATA)) {
1209     *InquiryDataSize = sizeof (INQUIRY_DATA);
1210     return EFI_BUFFER_TOO_SMALL;
1211   }
1212
1213   if (IdeBlkIoDevice->pInquiryData == NULL) {
1214     return EFI_NOT_FOUND;
1215   }
1216
1217   gBS->CopyMem (InquiryData, IdeBlkIoDevice->pInquiryData, sizeof (INQUIRY_DATA));
1218   *InquiryDataSize = sizeof (INQUIRY_DATA);
1219
1220   return EFI_SUCCESS;
1221 }
1222
1223 /**
1224   Return the results of the Identify command to a drive in IdentifyData.
1225   Data format of Identify data is defined by the Interface GUID.
1226
1227   @param  This Protocol instance pointer.
1228   @param  IdentifyData Results of Identify command to device
1229   @param  IdentifyDataSize Size of IdentifyData in bytes.
1230
1231   @retval  EFI_SUCCESS IdentifyData valid
1232   @retval  EFI_NOT_FOUND Device does not support this data class
1233   @retval  EFI_DEVICE_ERROR Error reading IdentifyData from device
1234   @retval  EFI_BUFFER_TOO_SMALL IdentifyDataSize not big enough
1235
1236 **/
1237 EFI_STATUS
1238 EFIAPI
1239 IDEDiskInfoIdentify (
1240   IN     EFI_DISK_INFO_PROTOCOL   *This,
1241   IN OUT VOID                     *IdentifyData,
1242   IN OUT UINT32                   *IdentifyDataSize
1243   )
1244 {
1245   IDE_BLK_IO_DEV  *IdeBlkIoDevice;
1246
1247   IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_DISK_INFO_THIS (This);
1248
1249   if (*IdentifyDataSize < sizeof (EFI_IDENTIFY_DATA)) {
1250     *IdentifyDataSize = sizeof (EFI_IDENTIFY_DATA);
1251     return EFI_BUFFER_TOO_SMALL;
1252   }
1253
1254   if (IdeBlkIoDevice->pIdData == NULL) {
1255     return EFI_NOT_FOUND;
1256   }
1257
1258   gBS->CopyMem (IdentifyData, IdeBlkIoDevice->pIdData, sizeof (EFI_IDENTIFY_DATA));
1259   *IdentifyDataSize = sizeof (EFI_IDENTIFY_DATA);
1260
1261   return EFI_SUCCESS;
1262 }
1263
1264 /**
1265   Return the results of the Request Sense command to a drive in SenseData.
1266   Data format of Sense data is defined by the Interface GUID.
1267
1268   @param  This Protocol instance pointer.
1269   @param  SenseData Results of Request Sense command to device
1270   @param  SenseDataSize Size of SenseData in bytes.
1271   @param  SenseDataNumber Type of SenseData
1272
1273   @retval  EFI_SUCCESS InquiryData valid
1274   @retval  EFI_NOT_FOUND Device does not support this data class
1275   @retval  EFI_DEVICE_ERROR Error reading InquiryData from device
1276   @retval  EFI_BUFFER_TOO_SMALL SenseDataSize not big enough
1277
1278 **/
1279 EFI_STATUS
1280 EFIAPI
1281 IDEDiskInfoSenseData (
1282   IN     EFI_DISK_INFO_PROTOCOL   *This,
1283   IN OUT VOID                     *SenseData,
1284   IN OUT UINT32                   *SenseDataSize,
1285   OUT    UINT8                    *SenseDataNumber
1286   )
1287 {
1288   return EFI_NOT_FOUND;
1289 }
1290
1291 /**
1292   Return the results of the Request Sense command to a drive in SenseData.
1293   Data format of Sense data is defined by the Interface GUID.
1294
1295   @param  This Protocol instance pointer.
1296   @param  IdeChannel Primary or Secondary
1297   @param  IdeDevice Master or Slave
1298
1299   @retval  EFI_SUCCESS IdeChannel and IdeDevice are valid
1300   @retval  EFI_UNSUPPORTED This is not an IDE device
1301
1302 **/
1303 EFI_STATUS
1304 EFIAPI
1305 IDEDiskInfoWhichIde (
1306   IN  EFI_DISK_INFO_PROTOCOL   *This,
1307   OUT UINT32                   *IdeChannel,
1308   OUT UINT32                   *IdeDevice
1309   )
1310 {
1311   IDE_BLK_IO_DEV  *IdeBlkIoDevice;
1312
1313   IdeBlkIoDevice  = IDE_BLOCK_IO_DEV_FROM_DISK_INFO_THIS (This);
1314   *IdeChannel     = IdeBlkIoDevice->Channel;
1315   *IdeDevice      = IdeBlkIoDevice->Device;
1316
1317   return EFI_SUCCESS;
1318 }