Exemplo n.º 1
0
/**
  This function processes the results of changes in configuration.

  @param[in]  This               Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
  @param[in]  Action             Specifies the type of action taken by the browser.
  @param[in]  QuestionId         A unique value which is sent to the original
                                 exporting driver so that it can identify the type
                                 of data to expect.
  @param[in]  Type               The type of value for the question.
  @param[in]  Value              A pointer to the data being sent to the original
                                 exporting driver.
  @param[out] ActionRequest      On return, points to the action requested by the
                                 callback function.

  @retval EFI_SUCCESS            The callback successfully handled the action.
  @retval EFI_OUT_OF_RESOURCES   Not enough storage is available to hold the
                                 variable and its data.
  @retval EFI_DEVICE_ERROR       The variable could not be saved.
  @retval EFI_UNSUPPORTED        The specified Action is not supported by the
                                 callback.

**/
EFI_STATUS
EFIAPI
Tcg2Callback (
    IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL      *This,
    IN     EFI_BROWSER_ACTION                    Action,
    IN     EFI_QUESTION_ID                       QuestionId,
    IN     UINT8                                 Type,
    IN     EFI_IFR_TYPE_VALUE                    *Value,
    OUT EFI_BROWSER_ACTION_REQUEST            *ActionRequest
)
{
    if ((This == NULL) || (Value == NULL) || (ActionRequest == NULL)) {
        return EFI_INVALID_PARAMETER;
    }

    if (Action == EFI_BROWSER_ACTION_CHANGED) {
        if (QuestionId == KEY_TPM_DEVICE) {
            return EFI_SUCCESS;
        }
        if (QuestionId == KEY_TPM2_OPERATION) {
            return SaveTcg2PpRequest (Value->u8);
        }
        if (QuestionId == KEY_TPM2_OPERATION_PARAMETER) {
            return SaveTcg2PpRequestParameter (Value->u32);
        }
        if ((QuestionId >= KEY_TPM2_PCR_BANKS_REQUEST_0) && (QuestionId <= KEY_TPM2_PCR_BANKS_REQUEST_4)) {
            SaveTcg2PCRBanksRequest (QuestionId - KEY_TPM2_PCR_BANKS_REQUEST_0, Value->b);
        }
    }

    return EFI_UNSUPPORTED;
}
Exemplo n.º 2
0
/**
  This function processes the results of changes in configuration.

  @param[in]  This               Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
  @param[in]  Action             Specifies the type of action taken by the browser.
  @param[in]  QuestionId         A unique value which is sent to the original
                                 exporting driver so that it can identify the type
                                 of data to expect.
  @param[in]  Type               The type of value for the question.
  @param[in]  Value              A pointer to the data being sent to the original
                                 exporting driver.
  @param[out] ActionRequest      On return, points to the action requested by the
                                 callback function.

  @retval EFI_SUCCESS            The callback successfully handled the action.
  @retval EFI_OUT_OF_RESOURCES   Not enough storage is available to hold the
                                 variable and its data.
  @retval EFI_DEVICE_ERROR       The variable could not be saved.
  @retval EFI_UNSUPPORTED        The specified Action is not supported by the
                                 callback.

**/
EFI_STATUS
EFIAPI
Tcg2Callback (
  IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL      *This,
  IN     EFI_BROWSER_ACTION                    Action,
  IN     EFI_QUESTION_ID                       QuestionId,
  IN     UINT8                                 Type,
  IN     EFI_IFR_TYPE_VALUE                    *Value,
     OUT EFI_BROWSER_ACTION_REQUEST            *ActionRequest
  )
{
  EFI_INPUT_KEY               Key;

  if ((This == NULL) || (Value == NULL) || (ActionRequest == NULL)) {
    return EFI_INVALID_PARAMETER;
  }

  if (Action == EFI_BROWSER_ACTION_CHANGING) {
    if (QuestionId == KEY_TPM_DEVICE_INTERFACE) {
      EFI_STATUS  Status;
      Status = SetPtpInterface ((VOID *) (UINTN) PcdGet64 (PcdTpmBaseAddress), Value->u8);
      if (EFI_ERROR (Status)) {
        CreatePopUp (
          EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
          &Key,
          L"Error: Fail to set PTP interface!",
          NULL
          );
        return EFI_DEVICE_ERROR;
      }
    }
  }
  
  if (Action == EFI_BROWSER_ACTION_CHANGED) {
    if (QuestionId == KEY_TPM_DEVICE) {
      return EFI_SUCCESS;
    }
    if (QuestionId == KEY_TPM2_OPERATION) {
      return SaveTcg2PpRequest (Value->u8);
    }
    if (QuestionId == KEY_TPM2_OPERATION_PARAMETER) {
      return SaveTcg2PpRequestParameter (Value->u32);
    }
    if ((QuestionId >= KEY_TPM2_PCR_BANKS_REQUEST_0) && (QuestionId <= KEY_TPM2_PCR_BANKS_REQUEST_4)) {
      SaveTcg2PCRBanksRequest (QuestionId - KEY_TPM2_PCR_BANKS_REQUEST_0, Value->b);
    }
  }

  return EFI_UNSUPPORTED;
}