C++ EFI_BLOCK_IO_PROTOCOL::Reset方法代码示例

EFI_STATUS
BootMonFsDiscoverNextImage (
  IN BOOTMON_FS_INSTANCE      *Instance,
  IN EFI_LBA                  *LbaStart,
  OUT HW_IMAGE_DESCRIPTION    *Image
  )
{
  EFI_BLOCK_IO_PROTOCOL *Blocks;
  EFI_LBA                CurrentLba;
  VOID                  *Out;

  Blocks = Instance->BlockIo;

  // Allocate an output buffer
  Out = AllocatePool (Instance->Media->BlockSize);
  if (Out == NULL) {
    return EFI_OUT_OF_RESOURCES;
  }

  Blocks->Reset (Blocks, FALSE);
  CurrentLba = *LbaStart;

  // Look for images in the rest of this block
  while (CurrentLba <= Instance->Media->LastBlock) {
    // Read in the next block
    Blocks->ReadBlocks (Blocks, Instance->Media->MediaId, CurrentLba, Instance->Media->BlockSize, Out);
    // Check for an image in the current block
    if (BootMonFsImageInThisBlock (Out, Instance->Media->BlockSize, (CurrentLba - Instance->Media->LowestAlignedLba), Image)) {
      DEBUG ((EFI_D_ERROR, "Found image: %a in block %d.\n", &(Image->Footer.Filename), (UINTN)(CurrentLba - Instance->Media->LowestAlignedLba)));
      FreePool (Out);
      *LbaStart = Image->BlockEnd + 1;
      return EFI_SUCCESS;
    } else {
      CurrentLba++;
    }
  }

  *LbaStart = CurrentLba;
  FreePool (Out);
  return EFI_NOT_FOUND;
}

//
// TDS 5.1
//
EFI_STATUS
BBTestResetFunctionAutoTest (
  IN EFI_BB_TEST_PROTOCOL       *This,
  IN VOID                       *ClientInterface,
  IN EFI_TEST_LEVEL             TestLevel,
  IN EFI_HANDLE                 SupportHandle
  )
{
  EFI_STANDARD_TEST_LIBRARY_PROTOCOL   *StandardLib;
  EFI_STATUS                           Status;
  EFI_BLOCK_IO_PROTOCOL                *BlockIo;
  EFI_TEST_ASSERTION                   AssertionType;

  //
  // Get the Standard Library Interface
  //
  Status = gtBS->HandleProtocol (
                   SupportHandle,
                   &gEfiStandardTestLibraryGuid,
                   &StandardLib
                   );

  if (EFI_ERROR(Status)) {
    StandardLib->RecordAssertion (
                   StandardLib,
                   EFI_TEST_ASSERTION_FAILED,
                   gTestGenericFailureGuid,
                   L"BS.HandleProtocol - Handle standard test library",
                   L"%a:%d:Status - %r",
                   __FILE__,
                   __LINE__,
                   Status
                 );
    return Status;
  }

  BlockIo = (EFI_BLOCK_IO_PROTOCOL *)ClientInterface;

  //
  // Assertion Point 5.1.2.1
  // Reset must succeed to reset the block device hardware with extended verification
  //
  Status = BlockIo->Reset (BlockIo, TRUE);
  if (EFI_ERROR(Status)) {
    AssertionType = EFI_TEST_ASSERTION_FAILED;
  } else {
    AssertionType = EFI_TEST_ASSERTION_PASSED;
  }

  //
  // Sometimes the file system will be destroied from this point. Just add a
  // stall to avoid it. (Need investigation, I don't know it is useful or not!)
  //
  Print (L"Wait 5 seconds for the block device resetting...");
  gtBS->Stall (5000000);

  StandardLib->RecordAssertion (
                 StandardLib,
                 AssertionType,
                 gBlockIoFunctionTestAssertionGuid001,
                 L"EFI_BLOCK_IO_PROTOCOL.Reset - Reset the block device with extended verification",
                 L"%a:%d:Status=%r",
                 __FILE__,
                 __LINE__,
                 Status
                 );

  //
  // Assertion Point 5.1.2.2
  // Reset must succeed to reset the block device hardware without extended verification
  //
  Status = BlockIo->Reset (BlockIo, FALSE);
  if (EFI_ERROR(Status)) {
    AssertionType = EFI_TEST_ASSERTION_FAILED;
  } else {
    AssertionType = EFI_TEST_ASSERTION_PASSED;
  }

  //
  // Sometimes the file system will be destroied from this point. Just add a
  // stall to avoid it. (Need investigation, I don't know it is useful or not!)
  //
  Print (L"Wait 5 seconds for the block device resetting...");
  gtBS->Stall (5000000);

  StandardLib->RecordAssertion (
                 StandardLib,
                 AssertionType,
                 gBlockIoFunctionTestAssertionGuid002,
                 L"EFI_BLOCK_IO_PROTOCOL.Reset - Reset the block device without extended verification",
                 L"%a:%d:Status=%r",
                 __FILE__,
                 __LINE__,
                 Status
                 );

  return EFI_SUCCESS;
//.........这里部分代码省略.........