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[mirror_edk2.git] / IntelFrameworkModulePkg / Bus / Pci / IdeBus / Dxe / DriverDiagnostics.c

/** @file\r
  Copyright (c) 2006, Intel Corporation                                                         \r
  All rights reserved. This program and the accompanying materials                          \r
  are licensed and made available under the terms and conditions of the BSD License         \r
  which accompanies this distribution.  The full text of the license may be found at        \r
  http://opensource.org/licenses/bsd-license.php                                            \r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
**/\r
\r
\r
#include "idebus.h"\r
\r
#define IDE_BUS_DIAGNOSTIC_ERROR  L"PCI IDE/ATAPI Driver Diagnostics Failed"\r
\r
//\r
// EFI Driver Diagnostics Protocol\r
//\r
EFI_DRIVER_DIAGNOSTICS_PROTOCOL gIDEBusDriverDiagnostics = {\r
  IDEBusDriverDiagnosticsRunDiagnostics,\r
  "eng"\r
};\r
\r
/**\r
  Runs diagnostics on a controller.\r
\r
  @param  This A pointer to the EFI_DRIVER_DIAGNOSTICS_PROTOCOL\r
  instance.\r
  @param  ControllerHandle The handle of the controller to run diagnostics on.\r
  @param  ChildHandle The handle of the child controller to run diagnostics on\r
  This is an optional parameter that may be NULL.  It will\r
  be NULL for device drivers.  It will also be NULL for a\r
  bus drivers that wish to run diagnostics on the bus\r
  controller.  It will not be NULL for a bus driver that\r
  wishes to run diagnostics on one of its child\r
  controllers.\r
  @param  DiagnosticType Indicates type of diagnostics to perform on the\r
  controller specified by ControllerHandle and ChildHandle.\r
  See "Related Definitions" for the list of supported\r
  types.\r
  @param  Language A pointer to a three character ISO 639-2 language\r
  identifier.  This is the language in which the optional\r
  error message should be returned in Buffer, and it must\r
  match one of the languages specified in\r
  SupportedLanguages. The number of languages supported by\r
  a driver is up to the driver writer.\r
  @param  ErrorType A GUID that defines the format of the data returned in\r
  Buffer.\r
  @param  BufferSize The size, in bytes, of the data returned in Buffer.\r
  @param  Buffer A buffer that contains a Null-terminated Unicode string\r
  plus some additional data whose format is defined by\r
  ErrorType.  Buffer is allocated by this function with\r
  AllocatePool(), and it is the caller's responsibility\r
  to free it with a call to FreePool().\r
\r
  @retval  EFI_SUCCESS The controller specified by ControllerHandle and\r
  ChildHandle passed the diagnostic.\r
  @retval  EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.\r
  @retval  EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid\r
  EFI_HANDLE.\r
  @retval  EFI_INVALID_PARAMETER Language is NULL.\r
  @retval  EFI_INVALID_PARAMETER ErrorType is NULL.\r
  @retval  EFI_INVALID_PARAMETER BufferType is NULL.\r
  @retval  EFI_INVALID_PARAMETER Buffer is NULL.\r
  @retval  EFI_UNSUPPORTED The driver specified by This does not support\r
  running diagnostics for the controller specified\r
  by ControllerHandle and ChildHandle.\r
  @retval  EFI_UNSUPPORTED The driver specified by This does not support the\r
  type of diagnostic specified by DiagnosticType.\r
  @retval  EFI_UNSUPPORTED The driver specified by This does not support the\r
  language specified by Language.\r
  @retval  EFI_OUT_OF_RESOURCES There are not enough resources available to complete\r
  the diagnostics.\r
  @retval  EFI_OUT_OF_RESOURCES There are not enough resources available to return\r
  the status information in ErrorType, BufferSize,\r
  and Buffer.\r
  @retval  EFI_DEVICE_ERROR The controller specified by ControllerHandle and\r
  ChildHandle did not pass the diagnostic.\r
\r
**/\r
EFI_STATUS\r
IDEBusDriverDiagnosticsRunDiagnostics (\r
  IN  EFI_DRIVER_DIAGNOSTICS_PROTOCOL               *This,\r
  IN  EFI_HANDLE                                    ControllerHandle,\r
  IN  EFI_HANDLE                                    ChildHandle  OPTIONAL,\r
  IN  EFI_DRIVER_DIAGNOSTIC_TYPE                    DiagnosticType,\r
  IN  CHAR8                                         *Language,\r
  OUT EFI_GUID                                      **ErrorType,\r
  OUT UINTN                                         *BufferSize,\r
  OUT CHAR16                                        **Buffer\r
  )\r
{\r
  EFI_STATUS            Status;\r
  EFI_PCI_IO_PROTOCOL   *PciIo;\r
  EFI_BLOCK_IO_PROTOCOL *BlkIo;\r
  IDE_BLK_IO_DEV        *IdeBlkIoDevice;\r
  UINT32                VendorDeviceId;\r
  VOID                  *BlockBuffer;\r
\r
  *ErrorType  = NULL;\r
  *BufferSize = 0;\r
\r
  if (ChildHandle == NULL) {\r
    Status = gBS->OpenProtocol (\r
                    ControllerHandle,\r
                    &gEfiCallerIdGuid,\r
                    NULL,\r
                    gIDEBusDriverBinding.DriverBindingHandle,\r
                    ControllerHandle,\r
                    EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r
                    );\r
    if (EFI_ERROR (Status)) {\r
      return EFI_UNSUPPORTED;\r
    }\r
\r
    Status = gBS->OpenProtocol (\r
                    ControllerHandle,\r
                    &gEfiPciIoProtocolGuid,\r
                    (VOID **) &PciIo,\r
                    gIDEBusDriverBinding.DriverBindingHandle,\r
                    ControllerHandle,\r
                    EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
                    );\r
    if (EFI_ERROR (Status)) {\r
      return EFI_DEVICE_ERROR;\r
    }\r
\r
    //\r
    // Use services of PCI I/O Protocol to test the PCI IDE/ATAPI Controller\r
    // The following test simply reads the Device ID and Vendor ID.\r
    // It should never fail.  A real test would perform more advanced\r
    // diagnostics.\r
    //\r
\r
    Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint32, 0, 1, &VendorDeviceId);\r
    if (EFI_ERROR (Status) || VendorDeviceId == 0xffffffff) {\r
      return EFI_DEVICE_ERROR;\r
    }\r
\r
    return EFI_SUCCESS;\r
  }\r
\r
  Status = gBS->OpenProtocol (\r
                  ChildHandle,\r
                  &gEfiBlockIoProtocolGuid,\r
                  (VOID **) &BlkIo,\r
                  gIDEBusDriverBinding.DriverBindingHandle,\r
                  ChildHandle,\r
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    return EFI_UNSUPPORTED;\r
  }\r
\r
  IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (BlkIo);\r
\r
  //\r
  // Use services available from IdeBlkIoDevice to test the IDE/ATAPI device\r
  //\r
  Status = gBS->AllocatePool (\r
                  EfiBootServicesData,\r
                  IdeBlkIoDevice->BlkMedia.BlockSize,\r
                  (VOID **) &BlockBuffer\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  Status = IdeBlkIoDevice->BlkIo.ReadBlocks (\r
                                  &IdeBlkIoDevice->BlkIo,\r
                                  IdeBlkIoDevice->BlkMedia.MediaId,\r
                                  0,\r
                                  IdeBlkIoDevice->BlkMedia.BlockSize,\r
                                  BlockBuffer\r
                                  );\r
\r
  if (EFI_ERROR (Status)) {\r
    *ErrorType  = &gEfiCallerIdGuid;\r
    *BufferSize = sizeof (IDE_BUS_DIAGNOSTIC_ERROR);\r
\r
    Status = gBS->AllocatePool (\r
                    EfiBootServicesData,\r
                    (UINTN) (*BufferSize),\r
                    (VOID **) Buffer\r
                    );\r
    if (EFI_ERROR (Status)) {\r
      return Status;\r
    }\r
\r
    CopyMem (*Buffer, IDE_BUS_DIAGNOSTIC_ERROR, *BufferSize);\r
\r
    Status = EFI_DEVICE_ERROR;\r
  }\r
\r
  gBS->FreePool (BlockBuffer);\r
\r
  return Status;\r
}\r