[mirror_edk2.git] / IntelFrameworkModulePkg / Universal / BdsDxe / BootMaint / ConsoleOption.c

/** @file\r
  handles console redirection from boot manager\r
\r
Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "BootMaint.h"\r
\r
UART_FLOW_CONTROL_DEVICE_PATH mFlowControlDevicePath =\r
{\r
  {\r
    MESSAGING_DEVICE_PATH,\r
    MSG_VENDOR_DP,\r
    {\r
      (UINT8)(sizeof(UART_FLOW_CONTROL_DEVICE_PATH)),\r
      (UINT8)((sizeof(UART_FLOW_CONTROL_DEVICE_PATH)) >> 8)\r
    }\r
  },\r
  DEVICE_PATH_MESSAGING_UART_FLOW_CONTROL,\r
  UART_FLOW_CONTROL_HARDWARE\r
};\r
\r
/**\r
  Check the device path node whether it's the Flow Control node or not.\r
\r
  @param[in] FlowControl    The device path node to be checked.\r
\r
  @retval TRUE              It's the Flow Control node.\r
  @retval FALSE             It's not.\r
\r
**/\r
BOOLEAN\r
IsUartFlowControlNode (\r
  IN UART_FLOW_CONTROL_DEVICE_PATH *FlowControl\r
  )\r
{\r
  return (BOOLEAN) (\r
           (DevicePathType (FlowControl) == MESSAGING_DEVICE_PATH) &&\r
           (DevicePathSubType (FlowControl) == MSG_VENDOR_DP) &&\r
           (CompareGuid (&FlowControl->Guid, &gEfiUartDevicePathGuid))\r
           );\r
}\r
\r
/**\r
  Check whether the device path node is ISA Serial Node.\r
\r
  @param Acpi           Device path node to be checked\r
\r
  @retval TRUE          It's ISA Serial Node.\r
  @retval FALSE         It's NOT ISA Serial Node.\r
\r
**/\r
BOOLEAN\r
IsIsaSerialNode (\r
  IN ACPI_HID_DEVICE_PATH *Acpi\r
  )\r
{\r
  return (BOOLEAN) (\r
      (DevicePathType (Acpi) == ACPI_DEVICE_PATH) &&\r
      (DevicePathSubType (Acpi) == ACPI_DP) &&\r
      (ReadUnaligned32 (&Acpi->HID) == EISA_PNP_ID (0x0501))\r
      );\r
}\r
\r
/**\r
  Update Com Ports attributes from DevicePath\r
\r
  @param DevicePath      DevicePath that contains Com ports\r
\r
  @retval EFI_SUCCESS   The update is successful.\r
\r
**/\r
EFI_STATUS\r
UpdateComAttributeFromVariable (\r
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath\r
  );\r
\r
/**\r
  Update the multi-instance device path of Terminal Device based on\r
  the global TerminalMenu. If ChangeTernimal is TRUE, the terminal\r
  device path in the Terminal Device in TerminalMenu is also updated.\r
\r
  @param DevicePath      The multi-instance device path.\r
  @param ChangeTerminal  TRUE, then device path in the Terminal Device\r
                         in TerminalMenu is also updated; FALSE, no update.\r
\r
  @return EFI_SUCCESS    The function completes successfully.\r
\r
**/\r
EFI_STATUS\r
ChangeTerminalDevicePath (\r
  IN OUT    EFI_DEVICE_PATH_PROTOCOL  **DevicePath,\r
  IN        BOOLEAN                   ChangeTerminal\r
  )\r
{\r
  EFI_DEVICE_PATH_PROTOCOL  *Node;\r
  EFI_DEVICE_PATH_PROTOCOL  *Node1;\r
  ACPI_HID_DEVICE_PATH      *Acpi;\r
  UART_DEVICE_PATH          *Uart;\r
  UART_DEVICE_PATH          *Uart1;\r
  UINTN                     Com;\r
  BM_TERMINAL_CONTEXT       *NewTerminalContext;\r
  BM_MENU_ENTRY             *NewMenuEntry;\r
  UART_FLOW_CONTROL_DEVICE_PATH *FlowControlNode;\r
\r
  Node  = *DevicePath;\r
  Node  = NextDevicePathNode (Node);\r
  Com   = 0;\r
  while (!IsDevicePathEnd (Node)) {\r
    Acpi = (ACPI_HID_DEVICE_PATH *) Node;\r
    if (IsIsaSerialNode (Acpi)) {\r
      CopyMem (&Com, &Acpi->UID, sizeof (UINT32));\r
    }\r
\r
    NewMenuEntry = BOpt_GetMenuEntry (&TerminalMenu, Com);\r
\r
    NewTerminalContext = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;\r
    if ((DevicePathType (Node) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (Node) == MSG_UART_DP)) {\r
      Uart = (UART_DEVICE_PATH *) Node;\r
      CopyMem (\r
        &Uart->BaudRate,\r
        &NewTerminalContext->BaudRate,\r
        sizeof (UINT64)\r
        );\r
\r
      CopyMem (\r
        &Uart->DataBits,\r
        &NewTerminalContext->DataBits,\r
        sizeof (UINT8)\r
        );\r
\r
      CopyMem (\r
        &Uart->Parity,\r
        &NewTerminalContext->Parity,\r
        sizeof (UINT8)\r
        );\r
\r
      CopyMem (\r
        &Uart->StopBits,\r
        &NewTerminalContext->StopBits,\r
        sizeof (UINT8)\r
        );\r
\r
      FlowControlNode = (UART_FLOW_CONTROL_DEVICE_PATH *) NextDevicePathNode (Node);\r
      if (IsUartFlowControlNode (FlowControlNode)) {\r
        FlowControlNode->FlowControlMap = NewTerminalContext->FlowControl;\r
      } else {\r
        //\r
        // Append the Flow control device node when user enable flow control.\r
        //\r
        if (NewTerminalContext->FlowControl != 0) {\r
          mFlowControlDevicePath.FlowControlMap = NewTerminalContext->FlowControl;\r
          *DevicePath = AppendDevicePathNode (\r
                                       *DevicePath,\r
                                       (EFI_DEVICE_PATH_PROTOCOL *) (&mFlowControlDevicePath)\r
                                       );\r
        }\r
      }\r
\r
      //\r
      // Change the device path in the ComPort\r
      //\r
      if (ChangeTerminal) {\r
        Node1 = NewTerminalContext->DevicePath;\r
        Node1 = NextDevicePathNode (Node1);\r
        while (!IsDevicePathEnd (Node1)) {\r
          if ((DevicePathType (Node1) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (Node1) == MSG_UART_DP)) {\r
            Uart1 = (UART_DEVICE_PATH *) Node1;\r
            CopyMem (\r
              &Uart1->BaudRate,\r
              &NewTerminalContext->BaudRate,\r
              sizeof (UINT64)\r
              );\r
\r
            CopyMem (\r
              &Uart1->DataBits,\r
              &NewTerminalContext->DataBits,\r
              sizeof (UINT8)\r
              );\r
\r
            CopyMem (\r
              &Uart1->Parity,\r
              &NewTerminalContext->Parity,\r
              sizeof (UINT8)\r
              );\r
\r
            CopyMem (\r
              &Uart1->StopBits,\r
              &NewTerminalContext->StopBits,\r
              sizeof (UINT8)\r
              );\r
            break;\r
          }\r
          //\r
          // end if\r
          //\r
          Node1 = NextDevicePathNode (Node1);\r
        }\r
        //\r
        // end while\r
        //\r
        break;\r
      }\r
    }\r
\r
    Node = NextDevicePathNode (Node);\r
  }\r
\r
  return EFI_SUCCESS;\r
\r
}\r
\r
\r
\r
/**\r
  Retrieve ACPI UID of UART from device path\r
\r
  @param Handle          The handle for the UART device.\r
  @param AcpiUid         The ACPI UID on output.\r
\r
  @retval  TRUE   Find valid UID from device path\r
  @retval  FALSE  Can't find\r
\r
**/\r
BOOLEAN\r
RetrieveUartUid (\r
  IN EFI_HANDLE   Handle,\r
  IN OUT UINT32   *AcpiUid\r
  )\r
{\r
  EFI_STATUS                Status;\r
  ACPI_HID_DEVICE_PATH      *Acpi;\r
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;\r
\r
  Status = gBS->HandleProtocol (\r
                  Handle,\r
                  &gEfiDevicePathProtocolGuid,\r
                  (VOID **) &DevicePath\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    return FALSE;\r
  }\r
\r
  Acpi = NULL;\r
  for (; !IsDevicePathEnd (DevicePath); DevicePath = NextDevicePathNode (DevicePath)) {\r
    if ((DevicePathType (DevicePath) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (DevicePath) == MSG_UART_DP)) {\r
      break;\r
    }\r
    //\r
    // Acpi points to the node before the Uart node\r
    //\r
    Acpi = (ACPI_HID_DEVICE_PATH *) DevicePath;\r
  }\r
\r
  if ((Acpi != NULL) && IsIsaSerialNode (Acpi)) {\r
    if (AcpiUid != NULL) {\r
      CopyMem (AcpiUid, &Acpi->UID, sizeof (UINT32));\r
    }\r
    return TRUE;\r
  } else {\r
    return FALSE;\r
  }\r
}\r
\r
/**\r
  Sort Uart handles array with Acpi->UID from low to high.\r
\r
  @param Handles         EFI_SERIAL_IO_PROTOCOL handle buffer\r
  @param NoHandles       EFI_SERIAL_IO_PROTOCOL handle count\r
**/\r
VOID\r
SortedUartHandle (\r
  IN  EFI_HANDLE *Handles,\r
  IN  UINTN      NoHandles\r
  )\r
{\r
  UINTN       Index1;\r
  UINTN       Index2;\r
  UINTN       Position;\r
  UINT32      AcpiUid1;\r
  UINT32      AcpiUid2;\r
  UINT32      TempAcpiUid;\r
  EFI_HANDLE  TempHandle;\r
\r
  for (Index1 = 0; Index1 < NoHandles-1; Index1++) {\r
    if (!RetrieveUartUid (Handles[Index1], &AcpiUid1)) {\r
      continue;\r
    }\r
    TempHandle  = Handles[Index1];\r
    Position    = Index1;\r
    TempAcpiUid = AcpiUid1;\r
\r
    for (Index2 = Index1+1; Index2 < NoHandles; Index2++) {\r
      if (!RetrieveUartUid (Handles[Index2], &AcpiUid2)) {\r
        continue;\r
      }\r
      if (AcpiUid2 < TempAcpiUid) {\r
        TempAcpiUid = AcpiUid2;\r
        TempHandle  = Handles[Index2];\r
        Position    = Index2;\r
      }\r
    }\r
    Handles[Position] = Handles[Index1];\r
    Handles[Index1]   = TempHandle;\r
  }\r
}\r
\r
/**\r
  Test whether DevicePath is a valid Terminal\r
\r
\r
  @param DevicePath      DevicePath to be checked\r
  @param Termi           If DevicePath is valid Terminal, terminal type is returned.\r
  @param Com             If DevicePath is valid Terminal, Com Port type is returned.\r
\r
  @retval  TRUE         If DevicePath point to a Terminal.\r
  @retval  FALSE        If DevicePath does not point to a Terminal.\r
\r
**/\r
BOOLEAN\r
IsTerminalDevicePath (\r
  IN  EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
  OUT TYPE_OF_TERMINAL         *Termi,\r
  OUT UINTN                    *Com\r
  );\r
\r
/**\r
  Build a list containing all serial devices.\r
\r
\r
  @retval EFI_SUCCESS The function complete successfully.\r
  @retval EFI_UNSUPPORTED No serial ports present.\r
\r
**/\r
EFI_STATUS\r
LocateSerialIo (\r
  VOID\r
  )\r
{\r
  UINTN                     Index;\r
  UINTN                     Index2;\r
  UINTN                     NoHandles;\r
  EFI_HANDLE                *Handles;\r
  EFI_STATUS                Status;\r
  ACPI_HID_DEVICE_PATH      *Acpi;\r
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;\r
  EFI_SERIAL_IO_PROTOCOL    *SerialIo;\r
  EFI_DEVICE_PATH_PROTOCOL  *Node;\r
  EFI_DEVICE_PATH_PROTOCOL  *OutDevicePath;\r
  EFI_DEVICE_PATH_PROTOCOL  *InpDevicePath;\r
  EFI_DEVICE_PATH_PROTOCOL  *ErrDevicePath;\r
  BM_MENU_ENTRY             *NewMenuEntry;\r
  BM_TERMINAL_CONTEXT       *NewTerminalContext;\r
  EFI_DEVICE_PATH_PROTOCOL  *NewDevicePath;\r
  VENDOR_DEVICE_PATH        Vendor;\r
  UINT32                    FlowControl;\r
  //\r
  // Get all handles that have SerialIo protocol installed\r
  //\r
  InitializeListHead (&TerminalMenu.Head);\r
  TerminalMenu.MenuNumber = 0;\r
  Status = gBS->LocateHandleBuffer (\r
                  ByProtocol,\r
                  &gEfiSerialIoProtocolGuid,\r
                  NULL,\r
                  &NoHandles,\r
                  &Handles\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    //\r
    // No serial ports present\r
    //\r
    return EFI_UNSUPPORTED;\r
  }\r
\r
  //\r
  // Sort Uart handles array with Acpi->UID from low to high\r
  // then Terminal menu can be built from low Acpi->UID to high Acpi->UID\r
  //\r
  SortedUartHandle (Handles, NoHandles);\r
\r
  for (Index = 0; Index < NoHandles; Index++) {\r
    //\r
    // Check to see whether the handle has DevicePath Protocol installed\r
    //\r
    gBS->HandleProtocol (\r
          Handles[Index],\r
          &gEfiDevicePathProtocolGuid,\r
          (VOID **) &DevicePath\r
          );\r
\r
    Acpi = NULL;\r
    for (Node = DevicePath; !IsDevicePathEnd (Node); Node = NextDevicePathNode (Node)) {\r
      if ((DevicePathType (Node) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (Node) == MSG_UART_DP)) {\r
        break;\r
      }\r
      //\r
      // Acpi points to the node before Uart node\r
      //\r
      Acpi = (ACPI_HID_DEVICE_PATH *) Node;\r
    }\r
\r
    if ((Acpi != NULL) && IsIsaSerialNode (Acpi)) {\r
      NewMenuEntry = BOpt_CreateMenuEntry (BM_TERMINAL_CONTEXT_SELECT);\r
      if (NewMenuEntry == NULL) {\r
        FreePool (Handles);\r
        return EFI_OUT_OF_RESOURCES;\r
      }\r
\r
      NewTerminalContext = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;\r
      CopyMem (&NewMenuEntry->OptionNumber, &Acpi->UID, sizeof (UINT32));\r
      NewTerminalContext->DevicePath = DuplicateDevicePath (DevicePath);\r
      //\r
      // BugBug: I have no choice, calling EfiLibStrFromDatahub will hang the system!\r
      // coz' the misc data for each platform is not correct, actually it's the device path stored in\r
      // datahub which is not completed, so a searching for end of device path will enter a\r
      // dead-loop.\r
      //\r
      NewMenuEntry->DisplayString = EfiLibStrFromDatahub (DevicePath);\r
      if (NULL == NewMenuEntry->DisplayString) {\r
        NewMenuEntry->DisplayString = DevicePathToStr (DevicePath);\r
      }\r
\r
      NewMenuEntry->HelpString = NULL;\r
\r
      gBS->HandleProtocol (\r
            Handles[Index],\r
            &gEfiSerialIoProtocolGuid,\r
            (VOID **) &SerialIo\r
            );\r
\r
      CopyMem (\r
        &NewTerminalContext->BaudRate,\r
        &SerialIo->Mode->BaudRate,\r
        sizeof (UINT64)\r
        );\r
\r
      CopyMem (\r
        &NewTerminalContext->DataBits,\r
        &SerialIo->Mode->DataBits,\r
        sizeof (UINT8)\r
        );\r
\r
      CopyMem (\r
        &NewTerminalContext->Parity,\r
        &SerialIo->Mode->Parity,\r
        sizeof (UINT8)\r
        );\r
\r
      CopyMem (\r
        &NewTerminalContext->StopBits,\r
        &SerialIo->Mode->StopBits,\r
        sizeof (UINT8)\r
        );\r
\r
      NewTerminalContext->FlowControl = 0;\r
      SerialIo->GetControl(SerialIo, &FlowControl);\r
      if ((FlowControl & EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE) != 0) {\r
        NewTerminalContext->FlowControl = UART_FLOW_CONTROL_HARDWARE;\r
      }\r
\r
      InsertTailList (&TerminalMenu.Head, &NewMenuEntry->Link);\r
      TerminalMenu.MenuNumber++;\r
    }\r
  }\r
  if (Handles != NULL) {\r
    FreePool (Handles);\r
  }\r
\r
  //\r
  // Get L"ConOut", L"ConIn" and L"ErrOut" from the Var\r
  //\r
  OutDevicePath = EfiLibGetVariable (L"ConOut", &gEfiGlobalVariableGuid);\r
  InpDevicePath = EfiLibGetVariable (L"ConIn", &gEfiGlobalVariableGuid);\r
  ErrDevicePath = EfiLibGetVariable (L"ErrOut", &gEfiGlobalVariableGuid);\r
  if (OutDevicePath != NULL) {\r
    UpdateComAttributeFromVariable (OutDevicePath);\r
  }\r
\r
  if (InpDevicePath != NULL) {\r
    UpdateComAttributeFromVariable (InpDevicePath);\r
  }\r
\r
  if (ErrDevicePath != NULL) {\r
    UpdateComAttributeFromVariable (ErrDevicePath);\r
  }\r
\r
  for (Index = 0; Index < TerminalMenu.MenuNumber; Index++) {\r
    NewMenuEntry = BOpt_GetMenuEntry (&TerminalMenu, Index);\r
    if (NULL == NewMenuEntry) {\r
      return EFI_NOT_FOUND;\r
    }\r
\r
    NewTerminalContext                = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;\r
\r
    NewTerminalContext->TerminalType  = 0;\r
    NewTerminalContext->IsConIn       = FALSE;\r
    NewTerminalContext->IsConOut      = FALSE;\r
    NewTerminalContext->IsStdErr      = FALSE;\r
\r
    Vendor.Header.Type                = MESSAGING_DEVICE_PATH;\r
    Vendor.Header.SubType             = MSG_VENDOR_DP;\r
\r
    for (Index2 = 0; Index2 < 4; Index2++) {\r
      CopyMem (&Vendor.Guid, &TerminalTypeGuid[Index2], sizeof (EFI_GUID));\r
      SetDevicePathNodeLength (&Vendor.Header, sizeof (VENDOR_DEVICE_PATH));\r
      NewDevicePath = AppendDevicePathNode (\r
                        NewTerminalContext->DevicePath,\r
                        (EFI_DEVICE_PATH_PROTOCOL *) &Vendor\r
                        );\r
      if (NewMenuEntry->HelpString != NULL) {\r
        FreePool (NewMenuEntry->HelpString);\r
      }\r
      //\r
      // NewMenuEntry->HelpString = DevicePathToStr (NewDevicePath);\r
      // NewMenuEntry->DisplayString = NewMenuEntry->HelpString;\r
      //\r
      NewMenuEntry->HelpString = NULL;\r
\r
      if (BdsLibMatchDevicePaths (OutDevicePath, NewDevicePath)) {\r
        NewTerminalContext->IsConOut      = TRUE;\r
        NewTerminalContext->TerminalType  = (UINT8) Index2;\r
      }\r
\r
      if (BdsLibMatchDevicePaths (InpDevicePath, NewDevicePath)) {\r
        NewTerminalContext->IsConIn       = TRUE;\r
        NewTerminalContext->TerminalType  = (UINT8) Index2;\r
      }\r
\r
      if (BdsLibMatchDevicePaths (ErrDevicePath, NewDevicePath)) {\r
        NewTerminalContext->IsStdErr      = TRUE;\r
        NewTerminalContext->TerminalType  = (UINT8) Index2;\r
      }\r
    }\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Update Com Ports attributes from DevicePath\r
\r
  @param DevicePath      DevicePath that contains Com ports\r
\r
  @retval EFI_SUCCESS   The update is successful.\r
  @retval EFI_NOT_FOUND Can not find specific menu entry\r
**/\r
EFI_STATUS\r
UpdateComAttributeFromVariable (\r
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath\r
  )\r
{\r
  EFI_DEVICE_PATH_PROTOCOL  *Node;\r
  EFI_DEVICE_PATH_PROTOCOL  *SerialNode;\r
  ACPI_HID_DEVICE_PATH      *Acpi;\r
  UART_DEVICE_PATH          *Uart;\r
  UART_DEVICE_PATH          *Uart1;\r
  UINTN                     TerminalNumber;\r
  BM_MENU_ENTRY             *NewMenuEntry;\r
  BM_TERMINAL_CONTEXT       *NewTerminalContext;\r
  UINTN                     Index;\r
  UART_FLOW_CONTROL_DEVICE_PATH *FlowControlNode;\r
  BOOLEAN                   HasFlowControlNode;\r
\r
  HasFlowControlNode = FALSE;\r
  Node            = DevicePath;\r
  Node            = NextDevicePathNode (Node);\r
  TerminalNumber  = 0;\r
  for (Index = 0; Index < TerminalMenu.MenuNumber; Index++) {\r
    while (!IsDevicePathEnd (Node)) {\r
      Acpi = (ACPI_HID_DEVICE_PATH *) Node;\r
      if (IsIsaSerialNode (Acpi)) {\r
        CopyMem (&TerminalNumber, &Acpi->UID, sizeof (UINT32));\r
      }\r
\r
      if ((DevicePathType (Node) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (Node) == MSG_UART_DP)) {\r
        Uart          = (UART_DEVICE_PATH *) Node;\r
        NewMenuEntry  = BOpt_GetMenuEntry (&TerminalMenu, TerminalNumber);\r
        if (NULL == NewMenuEntry) {\r
          return EFI_NOT_FOUND;\r
        }\r
\r
        NewTerminalContext = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;\r
        CopyMem (\r
          &NewTerminalContext->BaudRate,\r
          &Uart->BaudRate,\r
          sizeof (UINT64)\r
          );\r
\r
        CopyMem (\r
          &NewTerminalContext->DataBits,\r
          &Uart->DataBits,\r
          sizeof (UINT8)\r
          );\r
\r
        CopyMem (\r
          &NewTerminalContext->Parity,\r
          &Uart->Parity,\r
          sizeof (UINT8)\r
          );\r
\r
        CopyMem (\r
          &NewTerminalContext->StopBits,\r
          &Uart->StopBits,\r
          sizeof (UINT8)\r
          );\r
\r
        FlowControlNode = (UART_FLOW_CONTROL_DEVICE_PATH *) NextDevicePathNode (Node);\r
        if (IsUartFlowControlNode (FlowControlNode)) {\r
          HasFlowControlNode = TRUE;\r
          NewTerminalContext->FlowControl = (UINT8) ReadUnaligned32 (&FlowControlNode->FlowControlMap);\r
        } else if (NewTerminalContext->FlowControl != 0) {\r
          //\r
          // No Flow Control device path node, assumption no Flow control\r
          //\r
          NewTerminalContext->FlowControl = 0;\r
        }\r
\r
        SerialNode  = NewTerminalContext->DevicePath;\r
        SerialNode  = NextDevicePathNode (SerialNode);\r
        while (!IsDevicePathEnd (SerialNode)) {\r
          if ((DevicePathType (SerialNode) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (SerialNode) == MSG_UART_DP)) {\r
            //\r
            // Update following device paths according to\r
            // previous acquired uart attributes\r
            //\r
            Uart1 = (UART_DEVICE_PATH *) SerialNode;\r
            CopyMem (\r
              &Uart1->BaudRate,\r
              &NewTerminalContext->BaudRate,\r
              sizeof (UINT64)\r
              );\r
\r
            CopyMem (\r
              &Uart1->DataBits,\r
              &NewTerminalContext->DataBits,\r
              sizeof (UINT8)\r
              );\r
            CopyMem (\r
              &Uart1->Parity,\r
              &NewTerminalContext->Parity,\r
              sizeof (UINT8)\r
              );\r
            CopyMem (\r
              &Uart1->StopBits,\r
              &NewTerminalContext->StopBits,\r
              sizeof (UINT8)\r
              );\r
\r
            FlowControlNode = (UART_FLOW_CONTROL_DEVICE_PATH *) NextDevicePathNode (SerialNode);\r
            if (IsUartFlowControlNode (FlowControlNode)) {\r
              FlowControlNode->FlowControlMap = NewTerminalContext->FlowControl;\r
            } else {\r
              if (HasFlowControlNode) {\r
                mFlowControlDevicePath.FlowControlMap = NewTerminalContext->FlowControl;\r
                NewTerminalContext->DevicePath = AppendDevicePathNode (\r
                                             NewTerminalContext->DevicePath,\r
                                             (EFI_DEVICE_PATH_PROTOCOL *) (&mFlowControlDevicePath)\r
                                             );\r
              }\r
            }\r
            break;\r
          }\r
\r
          SerialNode = NextDevicePathNode (SerialNode);\r
        }\r
        //\r
        // end while\r
        //\r
      }\r
\r
      Node = NextDevicePathNode (Node);\r
    }\r
    //\r
    // end while\r
    //\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Build up Console Menu based on types passed in. The type can\r
  be BM_CONSOLE_IN_CONTEXT_SELECT, BM_CONSOLE_OUT_CONTEXT_SELECT\r
  and BM_CONSOLE_ERR_CONTEXT_SELECT.\r
\r
  @param ConsoleMenuType Can be BM_CONSOLE_IN_CONTEXT_SELECT, BM_CONSOLE_OUT_CONTEXT_SELECT\r
                         and BM_CONSOLE_ERR_CONTEXT_SELECT.\r
\r
  @retval EFI_UNSUPPORTED The type passed in is not in the 3 types defined.\r
  @retval EFI_NOT_FOUND   If the EFI Variable defined in UEFI spec with name "ConOutDev",\r
                          "ConInDev" or "ConErrDev" doesn't exists.\r
  @retval EFI_OUT_OF_RESOURCES Not enough resource to complete the operations.\r
  @retval EFI_SUCCESS          Function completes successfully.\r
\r
**/\r
EFI_STATUS\r
GetConsoleMenu (\r
  IN UINTN              ConsoleMenuType\r
  )\r
{\r
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;\r
  EFI_DEVICE_PATH_PROTOCOL  *AllDevicePath;\r
  EFI_DEVICE_PATH_PROTOCOL  *MultiDevicePath;\r
  EFI_DEVICE_PATH_PROTOCOL  *DevicePathInst;\r
  UINTN                     Size;\r
  UINTN                     AllCount;\r
  UINTN                     Index;\r
  UINTN                     Index2;\r
  BM_MENU_ENTRY             *NewMenuEntry;\r
  BM_CONSOLE_CONTEXT        *NewConsoleContext;\r
  TYPE_OF_TERMINAL          Terminal;\r
  UINTN                     Com;\r
  BM_MENU_OPTION            *ConsoleMenu;\r
\r
  DevicePath    = NULL;\r
  AllDevicePath = NULL;\r
  AllCount      = 0;\r
  switch (ConsoleMenuType) {\r
  case BM_CONSOLE_IN_CONTEXT_SELECT:\r
    ConsoleMenu = &ConsoleInpMenu;\r
    DevicePath = EfiLibGetVariable (\r
                  L"ConIn",\r
                  &gEfiGlobalVariableGuid\r
                  );\r
\r
    AllDevicePath = EfiLibGetVariable (\r
                      L"ConInDev",\r
                      &gEfiGlobalVariableGuid\r
                      );\r
    break;\r
\r
  case BM_CONSOLE_OUT_CONTEXT_SELECT:\r
    ConsoleMenu = &ConsoleOutMenu;\r
    DevicePath = EfiLibGetVariable (\r
                  L"ConOut",\r
                  &gEfiGlobalVariableGuid\r
                  );\r
\r
    AllDevicePath = EfiLibGetVariable (\r
                      L"ConOutDev",\r
                      &gEfiGlobalVariableGuid\r
                      );\r
    break;\r
\r
  case BM_CONSOLE_ERR_CONTEXT_SELECT:\r
    ConsoleMenu = &ConsoleErrMenu;\r
    DevicePath = EfiLibGetVariable (\r
                  L"ErrOut",\r
                  &gEfiGlobalVariableGuid\r
                  );\r
\r
    AllDevicePath = EfiLibGetVariable (\r
                      L"ErrOutDev",\r
                      &gEfiGlobalVariableGuid\r
                      );\r
    break;\r
\r
  default:\r
    return EFI_UNSUPPORTED;\r
  }\r
\r
  if (NULL == AllDevicePath) {\r
    return EFI_NOT_FOUND;\r
  }\r
\r
  InitializeListHead (&ConsoleMenu->Head);\r
\r
  AllCount                = EfiDevicePathInstanceCount (AllDevicePath);\r
  ConsoleMenu->MenuNumber = 0;\r
  //\r
  // Following is menu building up for Console Devices selected.\r
  //\r
  MultiDevicePath = AllDevicePath;\r
  Index2          = 0;\r
  for (Index = 0; Index < AllCount; Index++) {\r
    DevicePathInst  = GetNextDevicePathInstance (&MultiDevicePath, &Size);\r
\r
    NewMenuEntry    = BOpt_CreateMenuEntry (BM_CONSOLE_CONTEXT_SELECT);\r
    if (NULL == NewMenuEntry) {\r
      return EFI_OUT_OF_RESOURCES;\r
    }\r
\r
    NewConsoleContext             = (BM_CONSOLE_CONTEXT *) NewMenuEntry->VariableContext;\r
    NewMenuEntry->OptionNumber    = Index2;\r
\r
    NewConsoleContext->DevicePath = DuplicateDevicePath (DevicePathInst);\r
    ASSERT (NewConsoleContext->DevicePath != NULL);\r
    NewMenuEntry->DisplayString   = EfiLibStrFromDatahub (NewConsoleContext->DevicePath);\r
    if (NULL == NewMenuEntry->DisplayString) {\r
      NewMenuEntry->DisplayString = DevicePathToStr (NewConsoleContext->DevicePath);\r
    }\r
\r
    NewConsoleContext->IsTerminal = IsTerminalDevicePath (\r
                                      NewConsoleContext->DevicePath,\r
                                      &Terminal,\r
                                      &Com\r
                                      );\r
\r
    NewConsoleContext->IsActive = BdsLibMatchDevicePaths (\r
                                    DevicePath,\r
                                    NewConsoleContext->DevicePath\r
                                    );\r
\r
    if (NewConsoleContext->IsTerminal) {\r
      BOpt_DestroyMenuEntry (NewMenuEntry);\r
    } else {\r
      Index2++;\r
      ConsoleMenu->MenuNumber++;\r
      InsertTailList (&ConsoleMenu->Head, &NewMenuEntry->Link);\r
    }\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Build up ConsoleOutMenu, ConsoleInpMenu and ConsoleErrMenu\r
\r
  @retval EFI_SUCCESS    The function always complete successfully.\r
\r
**/\r
EFI_STATUS\r
GetAllConsoles (\r
  VOID\r
  )\r
{\r
  GetConsoleMenu (BM_CONSOLE_IN_CONTEXT_SELECT);\r
  GetConsoleMenu (BM_CONSOLE_OUT_CONTEXT_SELECT);\r
  GetConsoleMenu (BM_CONSOLE_ERR_CONTEXT_SELECT);\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Free ConsoleOutMenu, ConsoleInpMenu and ConsoleErrMenu\r
\r
  @retval EFI_SUCCESS    The function always complete successfully.\r
**/\r
EFI_STATUS\r
FreeAllConsoles (\r
  VOID\r
  )\r
{\r
  BOpt_FreeMenu (&ConsoleOutMenu);\r
  BOpt_FreeMenu (&ConsoleInpMenu);\r
  BOpt_FreeMenu (&ConsoleErrMenu);\r
  BOpt_FreeMenu (&TerminalMenu);\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Test whether DevicePath is a valid Terminal\r
\r
\r
  @param DevicePath      DevicePath to be checked\r
  @param Termi           If DevicePath is valid Terminal, terminal type is returned.\r
  @param Com             If DevicePath is valid Terminal, Com Port type is returned.\r
\r
  @retval  TRUE         If DevicePath point to a Terminal.\r
  @retval  FALSE        If DevicePath does not point to a Terminal.\r
\r
**/\r
BOOLEAN\r
IsTerminalDevicePath (\r
  IN  EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
  OUT TYPE_OF_TERMINAL         *Termi,\r
  OUT UINTN                    *Com\r
  )\r
{\r
  BOOLEAN                   IsTerminal;\r
  EFI_DEVICE_PATH_PROTOCOL  *Node;\r
  VENDOR_DEVICE_PATH        *Vendor;\r
  UART_DEVICE_PATH          *Uart;\r
  ACPI_HID_DEVICE_PATH      *Acpi;\r
\r
  IsTerminal = FALSE;\r
\r
  Uart   = NULL;\r
  Vendor = NULL;\r
  Acpi   = NULL;\r
  for (Node = DevicePath; !IsDevicePathEnd (Node); Node = NextDevicePathNode (Node)) {\r
    //\r
    // Vendor points to the node before the End node\r
    //\r
    Vendor = (VENDOR_DEVICE_PATH *) Node;\r
\r
    if ((DevicePathType (Node) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (Node) == MSG_UART_DP)) {\r
      Uart = (UART_DEVICE_PATH *) Node;\r
    }\r
\r
    if (Uart == NULL) {\r
      //\r
      // Acpi points to the node before the UART node\r
      //\r
      Acpi = (ACPI_HID_DEVICE_PATH *) Node;\r
    }\r
  }\r
\r
  if (Vendor == NULL ||\r
      DevicePathType (Vendor) != MESSAGING_DEVICE_PATH ||\r
      DevicePathSubType (Vendor) != MSG_VENDOR_DP ||\r
      Uart == NULL) {\r
    return FALSE;\r
  }\r
\r
  //\r
  // There are four kinds of Terminal types\r
  // check to see whether this devicepath\r
  // is one of that type\r
  //\r
  if (CompareGuid (&Vendor->Guid, &TerminalTypeGuid[0])) {\r
    *Termi      = TerminalTypePcAnsi;\r
    IsTerminal  = TRUE;\r
  } else {\r
    if (CompareGuid (&Vendor->Guid, &TerminalTypeGuid[1])) {\r
      *Termi      = TerminalTypeVt100;\r
      IsTerminal  = TRUE;\r
    } else {\r
      if (CompareGuid (&Vendor->Guid, &TerminalTypeGuid[2])) {\r
        *Termi      = TerminalTypeVt100Plus;\r
        IsTerminal  = TRUE;\r
      } else {\r
        if (CompareGuid (&Vendor->Guid, &TerminalTypeGuid[3])) {\r
          *Termi      = TerminalTypeVtUtf8;\r
          IsTerminal  = TRUE;\r
        } else {\r
          IsTerminal = FALSE;\r
        }\r
      }\r
    }\r
  }\r
\r
  if (!IsTerminal) {\r
    return FALSE;\r
  }\r
\r
  if ((Acpi != NULL) && IsIsaSerialNode (Acpi)) {\r
    CopyMem (Com, &Acpi->UID, sizeof (UINT32));\r
  } else {\r
    return FALSE;\r
  }\r
\r
  return TRUE;\r
}\r
\r
/**\r
  Get mode number according to column and row\r
\r
  @param CallbackData    The BMM context data.\r
**/\r
VOID\r
GetConsoleOutMode (\r
  IN  BMM_CALLBACK_DATA    *CallbackData\r
  )\r
{\r
  UINTN                         Col;\r
  UINTN                         Row;\r
  UINTN                         CurrentCol;\r
  UINTN                         CurrentRow;\r
  UINTN                         Mode;\r
  UINTN                         MaxMode;\r
  EFI_STATUS                    Status;\r
  EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL  *ConOut;\r
\r
  ConOut   = gST->ConOut;\r
  MaxMode  = (UINTN) (ConOut->Mode->MaxMode);\r
\r
  CurrentCol = PcdGet32 (PcdSetupConOutColumn);\r
  CurrentRow = PcdGet32 (PcdSetupConOutRow);\r
  for (Mode = 0; Mode < MaxMode; Mode++) {\r
    Status = ConOut->QueryMode (ConOut, Mode, &Col, &Row);\r
    if (!EFI_ERROR(Status)) {\r
      if (CurrentCol == Col && CurrentRow == Row) {\r
        CallbackData->BmmFakeNvData.ConsoleOutMode = (UINT16) Mode;\r
        break;\r
      }\r
    }\r
  }\r
}\r
\r
/**\r
\r
  Initialize console input device check box to ConsoleInCheck[MAX_MENU_NUMBER]\r
  in BMM_FAKE_NV_DATA structure.\r
\r
  @param CallbackData    The BMM context data.\r
\r
**/\r
VOID\r
GetConsoleInCheck (\r
  IN  BMM_CALLBACK_DATA    *CallbackData\r
  )\r
{\r
  UINT16              Index;\r
  BM_MENU_ENTRY       *NewMenuEntry;\r
  UINT8               *ConInCheck;\r
  BM_CONSOLE_CONTEXT  *NewConsoleContext;\r
\r
  ASSERT (CallbackData != NULL);\r
\r
  ConInCheck = &CallbackData->BmmFakeNvData.ConsoleInCheck[0];\r
  for (Index = 0; ((Index < ConsoleInpMenu.MenuNumber) && \\r
       (Index < MAX_MENU_NUMBER)) ; Index++) {\r
    NewMenuEntry      = BOpt_GetMenuEntry (&ConsoleInpMenu, Index);\r
    NewConsoleContext = (BM_CONSOLE_CONTEXT *) NewMenuEntry->VariableContext;\r
    ConInCheck[Index] = NewConsoleContext->IsActive;\r
  }\r
}\r
\r
/**\r
\r
  Initialize console output device check box to ConsoleOutCheck[MAX_MENU_NUMBER]\r
  in BMM_FAKE_NV_DATA structure.\r
\r
  @param CallbackData    The BMM context data.\r
\r
**/\r
VOID\r
GetConsoleOutCheck (\r
  IN  BMM_CALLBACK_DATA    *CallbackData\r
  )\r
{\r
  UINT16              Index;\r
  BM_MENU_ENTRY       *NewMenuEntry;\r
  UINT8               *ConOutCheck;\r
  BM_CONSOLE_CONTEXT  *NewConsoleContext;\r
\r
  ASSERT (CallbackData != NULL);\r
  ConOutCheck = &CallbackData->BmmFakeNvData.ConsoleOutCheck[0];\r
  for (Index = 0; ((Index < ConsoleOutMenu.MenuNumber) && \\r
       (Index < MAX_MENU_NUMBER)) ; Index++) {\r
    NewMenuEntry      = BOpt_GetMenuEntry (&ConsoleOutMenu, Index);\r
    NewConsoleContext = (BM_CONSOLE_CONTEXT *) NewMenuEntry->VariableContext;\r
    ConOutCheck[Index] = NewConsoleContext->IsActive;\r
  }\r
}\r
\r
/**\r
\r
  Initialize standard error output device check box to ConsoleErrCheck[MAX_MENU_NUMBER]\r
  in BMM_FAKE_NV_DATA structure.\r
\r
  @param CallbackData    The BMM context data.\r
\r
**/\r
VOID\r
GetConsoleErrCheck (\r
  IN  BMM_CALLBACK_DATA    *CallbackData\r
  )\r
{\r
  UINT16              Index;\r
  BM_MENU_ENTRY       *NewMenuEntry;\r
  UINT8               *ConErrCheck;\r
  BM_CONSOLE_CONTEXT  *NewConsoleContext;\r
\r
  ASSERT (CallbackData != NULL);\r
  ConErrCheck = &CallbackData->BmmFakeNvData.ConsoleErrCheck[0];\r
  for (Index = 0; ((Index < ConsoleErrMenu.MenuNumber) && \\r
       (Index < MAX_MENU_NUMBER)) ; Index++) {\r
    NewMenuEntry      = BOpt_GetMenuEntry (&ConsoleErrMenu, Index);\r
    NewConsoleContext = (BM_CONSOLE_CONTEXT *) NewMenuEntry->VariableContext;\r
    ConErrCheck[Index] = NewConsoleContext->IsActive;\r
  }\r
}\r
\r
/**\r
\r
  Initialize terminal attributes (baudrate, data rate, stop bits, parity and terminal type)\r
  to BMM_FAKE_NV_DATA structure.\r
\r
  @param CallbackData    The BMM context data.\r
\r
**/\r
VOID\r
GetTerminalAttribute (\r
  IN  BMM_CALLBACK_DATA    *CallbackData\r
  )\r
{\r
  BMM_FAKE_NV_DATA     *CurrentFakeNVMap;\r
  BM_MENU_ENTRY        *NewMenuEntry;\r
  BM_TERMINAL_CONTEXT  *NewTerminalContext;\r
  UINT16               TerminalIndex;\r
  UINT8                AttributeIndex;\r
\r
  ASSERT (CallbackData != NULL);\r
\r
  CurrentFakeNVMap = &CallbackData->BmmFakeNvData;\r
  for (TerminalIndex = 0; ((TerminalIndex < TerminalMenu.MenuNumber) && \\r
       (TerminalIndex < MAX_MENU_NUMBER)); TerminalIndex++) {\r
    NewMenuEntry        = BOpt_GetMenuEntry (&TerminalMenu, TerminalIndex);\r
    NewTerminalContext  = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;\r
    for (AttributeIndex = 0; AttributeIndex < sizeof (BaudRateList) / sizeof (BaudRateList [0]); AttributeIndex++) {\r
      if (NewTerminalContext->BaudRate == (UINT64) (BaudRateList[AttributeIndex].Value)) {\r
        NewTerminalContext->BaudRateIndex = AttributeIndex;\r
        break;\r
      }\r
    }\r
    for (AttributeIndex = 0; AttributeIndex < ARRAY_SIZE (DataBitsList); AttributeIndex++) {\r
      if (NewTerminalContext->DataBits == (UINT64) (DataBitsList[AttributeIndex].Value)) {\r
        NewTerminalContext->DataBitsIndex = AttributeIndex;\r
        break;\r
      }\r
    }\r
\r
    for (AttributeIndex = 0; AttributeIndex < ARRAY_SIZE (ParityList); AttributeIndex++) {\r
      if (NewTerminalContext->Parity == (UINT64) (ParityList[AttributeIndex].Value)) {\r
        NewTerminalContext->ParityIndex = AttributeIndex;\r
        break;\r
      }\r
    }\r
\r
    for (AttributeIndex = 0; AttributeIndex < ARRAY_SIZE (StopBitsList); AttributeIndex++) {\r
      if (NewTerminalContext->StopBits == (UINT64) (StopBitsList[AttributeIndex].Value)) {\r
        NewTerminalContext->StopBitsIndex = AttributeIndex;\r
        break;\r
      }\r
    }\r
    CurrentFakeNVMap->COMBaudRate[TerminalIndex]     = NewTerminalContext->BaudRateIndex;\r
    CurrentFakeNVMap->COMDataRate[TerminalIndex]     = NewTerminalContext->DataBitsIndex;\r
    CurrentFakeNVMap->COMStopBits[TerminalIndex]     = NewTerminalContext->StopBitsIndex;\r
    CurrentFakeNVMap->COMParity[TerminalIndex]       = NewTerminalContext->ParityIndex;\r
    CurrentFakeNVMap->COMTerminalType[TerminalIndex] = NewTerminalContext->TerminalType;\r
    CurrentFakeNVMap->COMFlowControl[TerminalIndex]  = NewTerminalContext->FlowControl;\r
  }\r
}\r
\r