It is recommended that module writer should keep track how a pointer is allocated and free it after use. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6306 6f19259b-4bc3-4df7-8a09-765794883524
		
			
				
	
	
		
			1009 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1009 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/** @file
 | 
						|
  handles console redirection from boot manager
 | 
						|
 | 
						|
Copyright (c) 2004 - 2008, Intel Corporation. <BR>
 | 
						|
All rights reserved. This program and the accompanying materials
 | 
						|
are licensed and made available under the terms and conditions of the BSD License
 | 
						|
which accompanies this distribution.  The full text of the license may be found at
 | 
						|
http://opensource.org/licenses/bsd-license.php
 | 
						|
 | 
						|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
 | 
						|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 | 
						|
 | 
						|
**/
 | 
						|
 | 
						|
#include "BootMaint.h"
 | 
						|
 | 
						|
/**
 | 
						|
  Function creates a device path data structure that identically matches the
 | 
						|
  device path passed in.
 | 
						|
 | 
						|
 | 
						|
  @param DevPath         A pointer to a device path data structure.
 | 
						|
 | 
						|
  @return        The new copy of DevPath is created to identically match the input.
 | 
						|
  @retval  NULL  Otherwise, NULL is returned.
 | 
						|
 | 
						|
**/
 | 
						|
EFI_DEVICE_PATH_PROTOCOL  *
 | 
						|
DevicePathInstanceDup (
 | 
						|
  IN EFI_DEVICE_PATH_PROTOCOL  *DevPath
 | 
						|
  );
 | 
						|
 | 
						|
/**
 | 
						|
  Update Com Ports attributes from DevicePath
 | 
						|
 | 
						|
 | 
						|
  @param DevicePath      DevicePath that contains Com ports
 | 
						|
 | 
						|
  @retval EFI_SUCCESS   The update is successful.
 | 
						|
 | 
						|
**/
 | 
						|
EFI_STATUS
 | 
						|
UpdateComAttributeFromVariable (
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath
 | 
						|
  );
 | 
						|
 | 
						|
/**
 | 
						|
  Update the multi-instance device path of Terminal Device based on
 | 
						|
  the global TerminalMenu. If ChangeTernimal is TRUE, the terminal 
 | 
						|
  device path in the Terminal Device in TerminalMenu is also updated.
 | 
						|
 | 
						|
  @param DevicePath      The multi-instance device path.
 | 
						|
  @param ChangeTerminal  TRUE, then device path in the Terminal Device 
 | 
						|
                         in TerminalMenu is also updated; FALSE, no update.
 | 
						|
 | 
						|
  @return EFI_SUCCESS    The function completes successfully.
 | 
						|
 | 
						|
**/
 | 
						|
EFI_STATUS
 | 
						|
ChangeTerminalDevicePath (
 | 
						|
  IN OUT    EFI_DEVICE_PATH_PROTOCOL  *DevicePath,
 | 
						|
  IN        BOOLEAN                   ChangeTerminal
 | 
						|
  )
 | 
						|
{
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *Node;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *Node1;
 | 
						|
  ACPI_HID_DEVICE_PATH      *Acpi;
 | 
						|
  UART_DEVICE_PATH          *Uart;
 | 
						|
  UART_DEVICE_PATH          *Uart1;
 | 
						|
  UINTN                     Com;
 | 
						|
  UINT32                    Match;
 | 
						|
  BM_TERMINAL_CONTEXT       *NewTerminalContext;
 | 
						|
  BM_MENU_ENTRY             *NewMenuEntry;
 | 
						|
 | 
						|
  Match = EISA_PNP_ID (0x0501);
 | 
						|
  Node  = DevicePath;
 | 
						|
  Node  = NextDevicePathNode (Node);
 | 
						|
  Com   = 0;
 | 
						|
  while (!IsDevicePathEnd (Node)) {
 | 
						|
    if ((DevicePathType (Node) == ACPI_DEVICE_PATH) && (DevicePathSubType (Node) == ACPI_DP)) {
 | 
						|
      Acpi = (ACPI_HID_DEVICE_PATH *) Node;
 | 
						|
      if (CompareMem (&Acpi->HID, &Match, sizeof (UINT32)) == 0) {
 | 
						|
        CopyMem (&Com, &Acpi->UID, sizeof (UINT32));
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    NewMenuEntry = BOpt_GetMenuEntry (&TerminalMenu, Com);
 | 
						|
 | 
						|
    NewTerminalContext = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;
 | 
						|
    if ((DevicePathType (Node) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (Node) == MSG_UART_DP)) {
 | 
						|
      Uart = (UART_DEVICE_PATH *) Node;
 | 
						|
      CopyMem (
 | 
						|
        &Uart->BaudRate,
 | 
						|
        &NewTerminalContext->BaudRate,
 | 
						|
        sizeof (UINT64)
 | 
						|
        );
 | 
						|
 | 
						|
      CopyMem (
 | 
						|
        &Uart->DataBits,
 | 
						|
        &NewTerminalContext->DataBits,
 | 
						|
        sizeof (UINT8)
 | 
						|
        );
 | 
						|
 | 
						|
      CopyMem (
 | 
						|
        &Uart->Parity,
 | 
						|
        &NewTerminalContext->Parity,
 | 
						|
        sizeof (UINT8)
 | 
						|
        );
 | 
						|
 | 
						|
      CopyMem (
 | 
						|
        &Uart->StopBits,
 | 
						|
        &NewTerminalContext->StopBits,
 | 
						|
        sizeof (UINT8)
 | 
						|
        );
 | 
						|
      //
 | 
						|
      // Change the device path in the ComPort
 | 
						|
      //
 | 
						|
      if (ChangeTerminal) {
 | 
						|
        Node1 = NewTerminalContext->DevicePath;
 | 
						|
        Node1 = NextDevicePathNode (Node1);
 | 
						|
        while (!IsDevicePathEnd (Node1)) {
 | 
						|
          if ((DevicePathType (Node1) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (Node1) == MSG_UART_DP)) {
 | 
						|
            Uart1 = (UART_DEVICE_PATH *) Node1;
 | 
						|
            CopyMem (
 | 
						|
              &Uart1->BaudRate,
 | 
						|
              &NewTerminalContext->BaudRate,
 | 
						|
              sizeof (UINT64)
 | 
						|
              );
 | 
						|
 | 
						|
            CopyMem (
 | 
						|
              &Uart1->DataBits,
 | 
						|
              &NewTerminalContext->DataBits,
 | 
						|
              sizeof (UINT8)
 | 
						|
              );
 | 
						|
 | 
						|
            CopyMem (
 | 
						|
              &Uart1->Parity,
 | 
						|
              &NewTerminalContext->Parity,
 | 
						|
              sizeof (UINT8)
 | 
						|
              );
 | 
						|
 | 
						|
            CopyMem (
 | 
						|
              &Uart1->StopBits,
 | 
						|
              &NewTerminalContext->StopBits,
 | 
						|
              sizeof (UINT8)
 | 
						|
              );
 | 
						|
            break;
 | 
						|
          }
 | 
						|
          //
 | 
						|
          // end if
 | 
						|
          //
 | 
						|
          Node1 = NextDevicePathNode (Node1);
 | 
						|
        }
 | 
						|
        //
 | 
						|
        // end while
 | 
						|
        //
 | 
						|
        break;
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    Node = NextDevicePathNode (Node);
 | 
						|
  }
 | 
						|
 | 
						|
  return EFI_SUCCESS;
 | 
						|
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Update the device path that describing a terminal device
 | 
						|
  based on the new BaudRate, Data Bits, parity and Stop Bits
 | 
						|
  set.
 | 
						|
 | 
						|
  @param DevicePath terminal device's path
 | 
						|
 | 
						|
**/
 | 
						|
VOID
 | 
						|
ChangeVariableDevicePath (
 | 
						|
  IN OUT EFI_DEVICE_PATH_PROTOCOL  *DevicePath
 | 
						|
  )
 | 
						|
{
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *Node;
 | 
						|
  ACPI_HID_DEVICE_PATH      *Acpi;
 | 
						|
  UART_DEVICE_PATH          *Uart;
 | 
						|
  UINTN                     Com;
 | 
						|
  UINT32                    Match;
 | 
						|
  BM_TERMINAL_CONTEXT       *NewTerminalContext;
 | 
						|
  BM_MENU_ENTRY             *NewMenuEntry;
 | 
						|
 | 
						|
  Match = EISA_PNP_ID (0x0501);
 | 
						|
  Node  = DevicePath;
 | 
						|
  Node  = NextDevicePathNode (Node);
 | 
						|
  Com   = 0;
 | 
						|
  while (!IsDevicePathEnd (Node)) {
 | 
						|
    if ((DevicePathType (Node) == ACPI_DEVICE_PATH) && (DevicePathSubType (Node) == ACPI_DP)) {
 | 
						|
      Acpi = (ACPI_HID_DEVICE_PATH *) Node;
 | 
						|
      if (CompareMem (&Acpi->HID, &Match, sizeof (UINT32)) == 0) {
 | 
						|
        CopyMem (&Com, &Acpi->UID, sizeof (UINT32));
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    if ((DevicePathType (Node) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (Node) == MSG_UART_DP)) {
 | 
						|
      NewMenuEntry = BOpt_GetMenuEntry (
 | 
						|
                      &TerminalMenu,
 | 
						|
                      Com
 | 
						|
                      );
 | 
						|
      ASSERT (NewMenuEntry != NULL);
 | 
						|
      NewTerminalContext  = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;
 | 
						|
      Uart                = (UART_DEVICE_PATH *) Node;
 | 
						|
      CopyMem (
 | 
						|
        &Uart->BaudRate,
 | 
						|
        &NewTerminalContext->BaudRate,
 | 
						|
        sizeof (UINT64)
 | 
						|
        );
 | 
						|
 | 
						|
      CopyMem (
 | 
						|
        &Uart->DataBits,
 | 
						|
        &NewTerminalContext->DataBits,
 | 
						|
        sizeof (UINT8)
 | 
						|
        );
 | 
						|
 | 
						|
      CopyMem (
 | 
						|
        &Uart->Parity,
 | 
						|
        &NewTerminalContext->Parity,
 | 
						|
        sizeof (UINT8)
 | 
						|
        );
 | 
						|
 | 
						|
      CopyMem (
 | 
						|
        &Uart->StopBits,
 | 
						|
        &NewTerminalContext->StopBits,
 | 
						|
        sizeof (UINT8)
 | 
						|
        );
 | 
						|
    }
 | 
						|
 | 
						|
    Node = NextDevicePathNode (Node);
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Retrieve ACPI UID of UART from device path
 | 
						|
 | 
						|
  @param Handle          The handle for the UART device.
 | 
						|
  @param AcpiUid         The ACPI UID on output.
 | 
						|
 | 
						|
  @retval  TRUE   Find valid UID from device path
 | 
						|
  @retval  FALSE  Can't find
 | 
						|
 | 
						|
**/
 | 
						|
BOOLEAN
 | 
						|
RetrieveUartUid (
 | 
						|
  IN EFI_HANDLE   Handle,
 | 
						|
  IN OUT UINT32   *AcpiUid
 | 
						|
  )
 | 
						|
{
 | 
						|
  UINT32                    Match;
 | 
						|
  UINT8                     *Ptr;
 | 
						|
  ACPI_HID_DEVICE_PATH      *Acpi;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
 | 
						|
 | 
						|
  gBS->HandleProtocol (
 | 
						|
        Handle,
 | 
						|
        &gEfiDevicePathProtocolGuid,
 | 
						|
        (VOID **) &DevicePath
 | 
						|
        );
 | 
						|
  Ptr = (UINT8 *) DevicePath;
 | 
						|
 | 
						|
  while (*Ptr != END_DEVICE_PATH_TYPE) {
 | 
						|
    Ptr++;
 | 
						|
  }
 | 
						|
 | 
						|
  Ptr   = Ptr - sizeof (UART_DEVICE_PATH) - sizeof (ACPI_HID_DEVICE_PATH);
 | 
						|
  Acpi  = (ACPI_HID_DEVICE_PATH *) Ptr;
 | 
						|
  Match = EISA_PNP_ID (0x0501);
 | 
						|
 | 
						|
  if (CompareMem (&Acpi->HID, &Match, sizeof (UINT32)) == 0) {
 | 
						|
    if (AcpiUid != NULL) {
 | 
						|
      *AcpiUid = Acpi->UID;
 | 
						|
    }
 | 
						|
    return TRUE;
 | 
						|
  } else {
 | 
						|
    return FALSE;
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Sort Uart handles array with Acpi->UID from low to high.
 | 
						|
 | 
						|
  @param Handles         EFI_SERIAL_IO_PROTOCOL handle buffer
 | 
						|
  @param NoHandles       EFI_SERIAL_IO_PROTOCOL handle count
 | 
						|
**/
 | 
						|
VOID
 | 
						|
SortedUartHandle (
 | 
						|
  IN  EFI_HANDLE *Handles,
 | 
						|
  IN  UINTN      NoHandles
 | 
						|
  )
 | 
						|
{
 | 
						|
  UINTN       Index1;
 | 
						|
  UINTN       Index2;
 | 
						|
  UINTN       Position;
 | 
						|
  UINT32      AcpiUid1;
 | 
						|
  UINT32      AcpiUid2;
 | 
						|
  UINT32      TempAcpiUid;
 | 
						|
  EFI_HANDLE  TempHandle;
 | 
						|
 | 
						|
  for (Index1 = 0; Index1 < NoHandles-1; Index1++) {
 | 
						|
    if (!RetrieveUartUid (Handles[Index1], &AcpiUid1)) {
 | 
						|
      continue;
 | 
						|
    }
 | 
						|
    TempHandle  = Handles[Index1];
 | 
						|
    Position    = Index1;
 | 
						|
    TempAcpiUid = AcpiUid1;
 | 
						|
 | 
						|
    for (Index2 = Index1+1; Index2 < NoHandles; Index2++) {
 | 
						|
      if (!RetrieveUartUid (Handles[Index2], &AcpiUid2)) {
 | 
						|
        continue;
 | 
						|
      }
 | 
						|
      if (AcpiUid2 < TempAcpiUid) {
 | 
						|
        TempAcpiUid = AcpiUid2;
 | 
						|
        TempHandle  = Handles[Index2];
 | 
						|
        Position    = Index2;
 | 
						|
      }
 | 
						|
    }
 | 
						|
    Handles[Position] = Handles[Index1];
 | 
						|
    Handles[Index1]   = TempHandle;
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Test whether DevicePath is a valid Terminal
 | 
						|
 | 
						|
 | 
						|
  @param DevicePath      DevicePath to be checked
 | 
						|
  @param Termi           If DevicePath is valid Terminal, terminal type is returned.
 | 
						|
  @param Com             If DevicePath is valid Terminal, Com Port type is returned.
 | 
						|
 | 
						|
  @retval  TRUE         If DevicePath point to a Terminal.
 | 
						|
  @retval  FALSE        If DevicePath does not point to a Terminal.
 | 
						|
 | 
						|
**/
 | 
						|
BOOLEAN
 | 
						|
IsTerminalDevicePath (
 | 
						|
  IN  EFI_DEVICE_PATH_PROTOCOL *DevicePath,
 | 
						|
  OUT TYPE_OF_TERMINAL         *Termi,
 | 
						|
  OUT UINTN                    *Com
 | 
						|
  );
 | 
						|
 | 
						|
/**
 | 
						|
  Build a list containing all serial devices.
 | 
						|
 | 
						|
 | 
						|
  @retval EFI_SUCCESS The function complete successfully.
 | 
						|
  @retval EFI_UNSUPPORTED No serial ports present.
 | 
						|
 | 
						|
**/
 | 
						|
EFI_STATUS
 | 
						|
LocateSerialIo (
 | 
						|
  VOID
 | 
						|
  )
 | 
						|
{
 | 
						|
  UINT8                     *Ptr;
 | 
						|
  UINTN                     Index;
 | 
						|
  UINTN                     Index2;
 | 
						|
  UINTN                     NoHandles;
 | 
						|
  EFI_HANDLE                *Handles;
 | 
						|
  EFI_STATUS                Status;
 | 
						|
  ACPI_HID_DEVICE_PATH      *Acpi;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
 | 
						|
  UINT32                    Match;
 | 
						|
  EFI_SERIAL_IO_PROTOCOL    *SerialIo;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *OutDevicePath;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *InpDevicePath;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *ErrDevicePath;
 | 
						|
  BM_MENU_ENTRY             *NewMenuEntry;
 | 
						|
  BM_TERMINAL_CONTEXT       *NewTerminalContext;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *NewDevicePath;
 | 
						|
  VENDOR_DEVICE_PATH        Vendor;
 | 
						|
  //
 | 
						|
  // Get all handles that have SerialIo protocol installed
 | 
						|
  //
 | 
						|
  InitializeListHead (&TerminalMenu.Head);
 | 
						|
  TerminalMenu.MenuNumber = 0;
 | 
						|
  Status = gBS->LocateHandleBuffer (
 | 
						|
                  ByProtocol,
 | 
						|
                  &gEfiSerialIoProtocolGuid,
 | 
						|
                  NULL,
 | 
						|
                  &NoHandles,
 | 
						|
                  &Handles
 | 
						|
                  );
 | 
						|
  if (EFI_ERROR (Status)) {
 | 
						|
    //
 | 
						|
    // No serial ports present
 | 
						|
    //
 | 
						|
    return EFI_UNSUPPORTED;
 | 
						|
  }
 | 
						|
 | 
						|
  //
 | 
						|
  // Sort Uart handles array with Acpi->UID from low to high
 | 
						|
  // then Terminal menu can be built from low Acpi->UID to high Acpi->UID
 | 
						|
  //
 | 
						|
  SortedUartHandle (Handles, NoHandles);
 | 
						|
 | 
						|
  for (Index = 0; Index < NoHandles; Index++) {
 | 
						|
    //
 | 
						|
    // Check to see whether the handle has DevicePath Protocol installed
 | 
						|
    //
 | 
						|
    gBS->HandleProtocol (
 | 
						|
          Handles[Index],
 | 
						|
          &gEfiDevicePathProtocolGuid,
 | 
						|
          (VOID **) &DevicePath
 | 
						|
          );
 | 
						|
    Ptr = (UINT8 *) DevicePath;
 | 
						|
    while (*Ptr != END_DEVICE_PATH_TYPE) {
 | 
						|
      Ptr++;
 | 
						|
    }
 | 
						|
 | 
						|
    Ptr   = Ptr - sizeof (UART_DEVICE_PATH) - sizeof (ACPI_HID_DEVICE_PATH);
 | 
						|
    Acpi  = (ACPI_HID_DEVICE_PATH *) Ptr;
 | 
						|
    Match = EISA_PNP_ID (0x0501);
 | 
						|
 | 
						|
    if (CompareMem (&Acpi->HID, &Match, sizeof (UINT32)) == 0) {
 | 
						|
      NewMenuEntry = BOpt_CreateMenuEntry (BM_TERMINAL_CONTEXT_SELECT);
 | 
						|
      if (NewMenuEntry == NULL) {
 | 
						|
        FreePool (Handles);
 | 
						|
        return EFI_OUT_OF_RESOURCES;
 | 
						|
      }
 | 
						|
 | 
						|
      NewTerminalContext = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;
 | 
						|
      CopyMem (&NewMenuEntry->OptionNumber, &Acpi->UID, sizeof (UINT32));
 | 
						|
      NewTerminalContext->DevicePath = DevicePathInstanceDup (DevicePath);
 | 
						|
      //
 | 
						|
      // BugBug: I have no choice, calling EfiLibStrFromDatahub will hang the system!
 | 
						|
      // coz' the misc data for each platform is not correct, actually it's the device path stored in
 | 
						|
      // datahub which is not completed, so a searching for end of device path will enter a
 | 
						|
      // dead-loop.
 | 
						|
      //
 | 
						|
      NewMenuEntry->DisplayString = EfiLibStrFromDatahub (DevicePath);
 | 
						|
      if (NULL == NewMenuEntry->DisplayString) {
 | 
						|
        NewMenuEntry->DisplayString = DevicePathToStr (DevicePath);
 | 
						|
      }
 | 
						|
 | 
						|
      NewMenuEntry->HelpString = NULL;
 | 
						|
 | 
						|
      gBS->HandleProtocol (
 | 
						|
            Handles[Index],
 | 
						|
            &gEfiSerialIoProtocolGuid,
 | 
						|
            (VOID **) &SerialIo
 | 
						|
            );
 | 
						|
 | 
						|
      CopyMem (
 | 
						|
        &NewTerminalContext->BaudRate,
 | 
						|
        &SerialIo->Mode->BaudRate,
 | 
						|
        sizeof (UINT64)
 | 
						|
        );
 | 
						|
 | 
						|
      CopyMem (
 | 
						|
        &NewTerminalContext->DataBits,
 | 
						|
        &SerialIo->Mode->DataBits,
 | 
						|
        sizeof (UINT8)
 | 
						|
        );
 | 
						|
 | 
						|
      CopyMem (
 | 
						|
        &NewTerminalContext->Parity,
 | 
						|
        &SerialIo->Mode->Parity,
 | 
						|
        sizeof (UINT8)
 | 
						|
        );
 | 
						|
 | 
						|
      CopyMem (
 | 
						|
        &NewTerminalContext->StopBits,
 | 
						|
        &SerialIo->Mode->StopBits,
 | 
						|
        sizeof (UINT8)
 | 
						|
        );
 | 
						|
      InsertTailList (&TerminalMenu.Head, &NewMenuEntry->Link);
 | 
						|
      TerminalMenu.MenuNumber++;
 | 
						|
    }
 | 
						|
  }
 | 
						|
  if (Handles != NULL) {
 | 
						|
    FreePool (Handles);
 | 
						|
  }
 | 
						|
 | 
						|
  //
 | 
						|
  // Get L"ConOut", L"ConIn" and L"ErrOut" from the Var
 | 
						|
  //
 | 
						|
  OutDevicePath = EfiLibGetVariable (L"ConOut", &gEfiGlobalVariableGuid);
 | 
						|
  InpDevicePath = EfiLibGetVariable (L"ConIn", &gEfiGlobalVariableGuid);
 | 
						|
  ErrDevicePath = EfiLibGetVariable (L"ErrOut", &gEfiGlobalVariableGuid);
 | 
						|
  if (OutDevicePath != NULL) {
 | 
						|
    UpdateComAttributeFromVariable (OutDevicePath);
 | 
						|
  }
 | 
						|
 | 
						|
  if (InpDevicePath != NULL) {
 | 
						|
    UpdateComAttributeFromVariable (InpDevicePath);
 | 
						|
  }
 | 
						|
 | 
						|
  if (ErrDevicePath != NULL) {
 | 
						|
    UpdateComAttributeFromVariable (ErrDevicePath);
 | 
						|
  }
 | 
						|
 | 
						|
  for (Index = 0; Index < TerminalMenu.MenuNumber; Index++) {
 | 
						|
    NewMenuEntry = BOpt_GetMenuEntry (&TerminalMenu, Index);
 | 
						|
    if (NULL == NewMenuEntry) {
 | 
						|
      return EFI_NOT_FOUND;
 | 
						|
    }
 | 
						|
 | 
						|
    NewTerminalContext                = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;
 | 
						|
 | 
						|
    NewTerminalContext->TerminalType  = 0;
 | 
						|
    NewTerminalContext->IsConIn       = FALSE;
 | 
						|
    NewTerminalContext->IsConOut      = FALSE;
 | 
						|
    NewTerminalContext->IsStdErr      = FALSE;
 | 
						|
 | 
						|
    Vendor.Header.Type                = MESSAGING_DEVICE_PATH;
 | 
						|
    Vendor.Header.SubType             = MSG_VENDOR_DP;
 | 
						|
 | 
						|
    for (Index2 = 0; Index2 < 4; Index2++) {
 | 
						|
      CopyMem (&Vendor.Guid, &TerminalTypeGuid[Index2], sizeof (EFI_GUID));
 | 
						|
      SetDevicePathNodeLength (&Vendor.Header, sizeof (VENDOR_DEVICE_PATH));
 | 
						|
      NewDevicePath = AppendDevicePathNode (
 | 
						|
                        NewTerminalContext->DevicePath,
 | 
						|
                        (EFI_DEVICE_PATH_PROTOCOL *) &Vendor
 | 
						|
                        );
 | 
						|
      if (NewMenuEntry->HelpString != NULL) {
 | 
						|
        FreePool (NewMenuEntry->HelpString);
 | 
						|
      }
 | 
						|
      //
 | 
						|
      // NewMenuEntry->HelpString = DevicePathToStr (NewDevicePath);
 | 
						|
      // NewMenuEntry->DisplayString = NewMenuEntry->HelpString;
 | 
						|
      //
 | 
						|
      NewMenuEntry->HelpString = NULL;
 | 
						|
 | 
						|
      if (BdsLibMatchDevicePaths (OutDevicePath, NewDevicePath)) {
 | 
						|
        NewTerminalContext->IsConOut      = TRUE;
 | 
						|
        NewTerminalContext->TerminalType  = (UINT8) Index2;
 | 
						|
      }
 | 
						|
 | 
						|
      if (BdsLibMatchDevicePaths (InpDevicePath, NewDevicePath)) {
 | 
						|
        NewTerminalContext->IsConIn       = TRUE;
 | 
						|
        NewTerminalContext->TerminalType  = (UINT8) Index2;
 | 
						|
      }
 | 
						|
 | 
						|
      if (BdsLibMatchDevicePaths (ErrDevicePath, NewDevicePath)) {
 | 
						|
        NewTerminalContext->IsStdErr      = TRUE;
 | 
						|
        NewTerminalContext->TerminalType  = (UINT8) Index2;
 | 
						|
      }
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  return EFI_SUCCESS;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Update Com Ports attributes from DevicePath
 | 
						|
 | 
						|
 | 
						|
  @param DevicePath      DevicePath that contains Com ports
 | 
						|
 | 
						|
  @retval EFI_SUCCESS   The update is successful.
 | 
						|
  @retval EFI_NOT_FOUND Can not find specific menu entry
 | 
						|
**/
 | 
						|
EFI_STATUS
 | 
						|
UpdateComAttributeFromVariable (
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath
 | 
						|
  )
 | 
						|
{
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *Node;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *SerialNode;
 | 
						|
  ACPI_HID_DEVICE_PATH      *Acpi;
 | 
						|
  UART_DEVICE_PATH          *Uart;
 | 
						|
  UART_DEVICE_PATH          *Uart1;
 | 
						|
  UINT32                    Match;
 | 
						|
  UINTN                     TerminalNumber;
 | 
						|
  BM_MENU_ENTRY             *NewMenuEntry;
 | 
						|
  BM_TERMINAL_CONTEXT       *NewTerminalContext;
 | 
						|
  UINTN                     Index;
 | 
						|
 | 
						|
  Match           = EISA_PNP_ID (0x0501);
 | 
						|
  Node            = DevicePath;
 | 
						|
  Node            = NextDevicePathNode (Node);
 | 
						|
  TerminalNumber  = 0;
 | 
						|
  for (Index = 0; Index < TerminalMenu.MenuNumber; Index++) {
 | 
						|
    while (!IsDevicePathEnd (Node)) {
 | 
						|
      if ((DevicePathType (Node) == ACPI_DEVICE_PATH) && (DevicePathSubType (Node) == ACPI_DP)) {
 | 
						|
        Acpi = (ACPI_HID_DEVICE_PATH *) Node;
 | 
						|
        if (CompareMem (&Acpi->HID, &Match, sizeof (UINT32)) == 0) {
 | 
						|
          CopyMem (&TerminalNumber, &Acpi->UID, sizeof (UINT32));
 | 
						|
        }
 | 
						|
      }
 | 
						|
 | 
						|
      if ((DevicePathType (Node) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (Node) == MSG_UART_DP)) {
 | 
						|
        Uart          = (UART_DEVICE_PATH *) Node;
 | 
						|
        NewMenuEntry  = BOpt_GetMenuEntry (&TerminalMenu, TerminalNumber);
 | 
						|
        if (NULL == NewMenuEntry) {
 | 
						|
          return EFI_NOT_FOUND;
 | 
						|
        }
 | 
						|
 | 
						|
        NewTerminalContext = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;
 | 
						|
        CopyMem (
 | 
						|
          &NewTerminalContext->BaudRate,
 | 
						|
          &Uart->BaudRate,
 | 
						|
          sizeof (UINT64)
 | 
						|
          );
 | 
						|
 | 
						|
        CopyMem (
 | 
						|
          &NewTerminalContext->DataBits,
 | 
						|
          &Uart->DataBits,
 | 
						|
          sizeof (UINT8)
 | 
						|
          );
 | 
						|
 | 
						|
        CopyMem (
 | 
						|
          &NewTerminalContext->Parity,
 | 
						|
          &Uart->Parity,
 | 
						|
          sizeof (UINT8)
 | 
						|
          );
 | 
						|
 | 
						|
        CopyMem (
 | 
						|
          &NewTerminalContext->StopBits,
 | 
						|
          &Uart->StopBits,
 | 
						|
          sizeof (UINT8)
 | 
						|
          );
 | 
						|
 | 
						|
        SerialNode  = NewTerminalContext->DevicePath;
 | 
						|
        SerialNode  = NextDevicePathNode (SerialNode);
 | 
						|
        while (!IsDevicePathEnd (SerialNode)) {
 | 
						|
          if ((DevicePathType (SerialNode) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (SerialNode) == MSG_UART_DP)) {
 | 
						|
            //
 | 
						|
            // Update following device paths according to
 | 
						|
            // previous acquired uart attributes
 | 
						|
            //
 | 
						|
            Uart1 = (UART_DEVICE_PATH *) SerialNode;
 | 
						|
            CopyMem (
 | 
						|
              &Uart1->BaudRate,
 | 
						|
              &NewTerminalContext->BaudRate,
 | 
						|
              sizeof (UINT64)
 | 
						|
              );
 | 
						|
 | 
						|
            CopyMem (
 | 
						|
              &Uart1->DataBits,
 | 
						|
              &NewTerminalContext->DataBits,
 | 
						|
              sizeof (UINT8)
 | 
						|
              );
 | 
						|
            CopyMem (
 | 
						|
              &Uart1->Parity,
 | 
						|
              &NewTerminalContext->Parity,
 | 
						|
              sizeof (UINT8)
 | 
						|
              );
 | 
						|
            CopyMem (
 | 
						|
              &Uart1->StopBits,
 | 
						|
              &NewTerminalContext->StopBits,
 | 
						|
              sizeof (UINT8)
 | 
						|
              );
 | 
						|
 | 
						|
            break;
 | 
						|
          }
 | 
						|
 | 
						|
          SerialNode = NextDevicePathNode (SerialNode);
 | 
						|
        }
 | 
						|
        //
 | 
						|
        // end while
 | 
						|
        //
 | 
						|
      }
 | 
						|
 | 
						|
      Node = NextDevicePathNode (Node);
 | 
						|
    }
 | 
						|
    //
 | 
						|
    // end while
 | 
						|
    //
 | 
						|
  }
 | 
						|
 | 
						|
  return EFI_SUCCESS;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Function creates a device path data structure that identically matches the
 | 
						|
  device path passed in.
 | 
						|
 | 
						|
 | 
						|
  @param DevPath         A pointer to a device path data structure.
 | 
						|
 | 
						|
  @return        The new copy of DevPath is created to identically match the input.
 | 
						|
  @retval  NULL  Otherwise, NULL is returned.
 | 
						|
 | 
						|
**/
 | 
						|
EFI_DEVICE_PATH_PROTOCOL *
 | 
						|
DevicePathInstanceDup (
 | 
						|
  IN EFI_DEVICE_PATH_PROTOCOL  *DevPath
 | 
						|
  )
 | 
						|
{
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *NewDevPath;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *DevicePathInst;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *Temp;
 | 
						|
  UINT8                     *Ptr;
 | 
						|
  UINTN                     Size;
 | 
						|
 | 
						|
  //
 | 
						|
  // get the size of an instance from the input
 | 
						|
  //
 | 
						|
  Temp            = DevPath;
 | 
						|
  DevicePathInst  = GetNextDevicePathInstance (&Temp, &Size);
 | 
						|
 | 
						|
  //
 | 
						|
  // Make a copy and set proper end type
 | 
						|
  //
 | 
						|
  NewDevPath = NULL;
 | 
						|
  if (Size != 0) {
 | 
						|
    NewDevPath = AllocateZeroPool (Size);
 | 
						|
    ASSERT (NewDevPath != NULL);
 | 
						|
  }
 | 
						|
 | 
						|
  if (NewDevPath != NULL) {
 | 
						|
    CopyMem (NewDevPath, DevicePathInst, Size);
 | 
						|
    Ptr = (UINT8 *) NewDevPath;
 | 
						|
    Ptr += Size - sizeof (EFI_DEVICE_PATH_PROTOCOL);
 | 
						|
    Temp = (EFI_DEVICE_PATH_PROTOCOL *) Ptr;
 | 
						|
    SetDevicePathEndNode (Temp);
 | 
						|
  }
 | 
						|
 | 
						|
  return NewDevPath;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Build up Console Menu based on types passed in. The type can
 | 
						|
  be BM_CONSOLE_IN_CONTEXT_SELECT, BM_CONSOLE_OUT_CONTEXT_SELECT
 | 
						|
  and BM_CONSOLE_ERR_CONTEXT_SELECT.
 | 
						|
 | 
						|
  @param ConsoleMenuType Can be BM_CONSOLE_IN_CONTEXT_SELECT, BM_CONSOLE_OUT_CONTEXT_SELECT
 | 
						|
                         and BM_CONSOLE_ERR_CONTEXT_SELECT.
 | 
						|
 | 
						|
  @retval EFI_UNSUPPORTED The type passed in is not in the 3 types defined.
 | 
						|
  @retval EFI_NOT_FOUND   If the EFI Variable defined in UEFI spec with name "ConOutDev", 
 | 
						|
                          "ConInDev" or "ConErrDev" doesn't exists.
 | 
						|
  @retval EFI_OUT_OF_RESOURCES Not enough resource to complete the operations.
 | 
						|
  @retval EFI_SUCCESS          Function completes successfully.
 | 
						|
 | 
						|
**/
 | 
						|
EFI_STATUS
 | 
						|
GetConsoleMenu (
 | 
						|
  IN UINTN              ConsoleMenuType
 | 
						|
  )
 | 
						|
{
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *AllDevicePath;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *MultiDevicePath;
 | 
						|
  EFI_DEVICE_PATH_PROTOCOL  *DevicePathInst;
 | 
						|
  UINTN                     Size;
 | 
						|
  UINTN                     AllCount;
 | 
						|
  UINTN                     Index;
 | 
						|
  UINTN                     Index2;
 | 
						|
  BM_MENU_ENTRY             *NewMenuEntry;
 | 
						|
  BM_CONSOLE_CONTEXT        *NewConsoleContext;
 | 
						|
  TYPE_OF_TERMINAL          Terminal;
 | 
						|
  UINTN                     Com;
 | 
						|
  BM_MENU_OPTION            *ConsoleMenu;
 | 
						|
 | 
						|
  DevicePath    = NULL;
 | 
						|
  AllDevicePath = NULL;
 | 
						|
  AllCount      = 0;
 | 
						|
  switch (ConsoleMenuType) {
 | 
						|
  case BM_CONSOLE_IN_CONTEXT_SELECT:
 | 
						|
    ConsoleMenu = &ConsoleInpMenu;
 | 
						|
    DevicePath = EfiLibGetVariable (
 | 
						|
                  L"ConIn",
 | 
						|
                  &gEfiGlobalVariableGuid
 | 
						|
                  );
 | 
						|
 | 
						|
    AllDevicePath = EfiLibGetVariable (
 | 
						|
                      L"ConInDev",
 | 
						|
                      &gEfiGlobalVariableGuid
 | 
						|
                      );
 | 
						|
    break;
 | 
						|
 | 
						|
  case BM_CONSOLE_OUT_CONTEXT_SELECT:
 | 
						|
    ConsoleMenu = &ConsoleOutMenu;
 | 
						|
    DevicePath = EfiLibGetVariable (
 | 
						|
                  L"ConOut",
 | 
						|
                  &gEfiGlobalVariableGuid
 | 
						|
                  );
 | 
						|
 | 
						|
    AllDevicePath = EfiLibGetVariable (
 | 
						|
                      L"ConOutDev",
 | 
						|
                      &gEfiGlobalVariableGuid
 | 
						|
                      );
 | 
						|
    break;
 | 
						|
 | 
						|
  case BM_CONSOLE_ERR_CONTEXT_SELECT:
 | 
						|
    ConsoleMenu = &ConsoleErrMenu;
 | 
						|
    DevicePath = EfiLibGetVariable (
 | 
						|
                  L"ErrOut",
 | 
						|
                  &gEfiGlobalVariableGuid
 | 
						|
                  );
 | 
						|
 | 
						|
    AllDevicePath = EfiLibGetVariable (
 | 
						|
                      L"ErrOutDev",
 | 
						|
                      &gEfiGlobalVariableGuid
 | 
						|
                      );
 | 
						|
    break;
 | 
						|
 | 
						|
  default:
 | 
						|
    return EFI_UNSUPPORTED;
 | 
						|
  }
 | 
						|
 | 
						|
  if (NULL == AllDevicePath) {
 | 
						|
    return EFI_NOT_FOUND;
 | 
						|
  }
 | 
						|
 | 
						|
  InitializeListHead (&ConsoleMenu->Head);
 | 
						|
 | 
						|
  AllCount                = EfiDevicePathInstanceCount (AllDevicePath);
 | 
						|
  ConsoleMenu->MenuNumber = 0;
 | 
						|
  //
 | 
						|
  // Following is menu building up for Console Devices selected.
 | 
						|
  //
 | 
						|
  MultiDevicePath = AllDevicePath;
 | 
						|
  Index2          = 0;
 | 
						|
  for (Index = 0; Index < AllCount; Index++) {
 | 
						|
    DevicePathInst  = GetNextDevicePathInstance (&MultiDevicePath, &Size);
 | 
						|
 | 
						|
    NewMenuEntry    = BOpt_CreateMenuEntry (BM_CONSOLE_CONTEXT_SELECT);
 | 
						|
    if (NULL == NewMenuEntry) {
 | 
						|
      return EFI_OUT_OF_RESOURCES;
 | 
						|
    }
 | 
						|
 | 
						|
    NewConsoleContext             = (BM_CONSOLE_CONTEXT *) NewMenuEntry->VariableContext;
 | 
						|
    NewMenuEntry->OptionNumber    = Index2;
 | 
						|
 | 
						|
    NewConsoleContext->DevicePath = DevicePathInstanceDup (DevicePathInst);
 | 
						|
    NewMenuEntry->DisplayString   = EfiLibStrFromDatahub (NewConsoleContext->DevicePath);
 | 
						|
    if (NULL == NewMenuEntry->DisplayString) {
 | 
						|
      NewMenuEntry->DisplayString = DevicePathToStr (NewConsoleContext->DevicePath);
 | 
						|
    }
 | 
						|
 | 
						|
    NewConsoleContext->IsTerminal = IsTerminalDevicePath (
 | 
						|
                                      NewConsoleContext->DevicePath,
 | 
						|
                                      &Terminal,
 | 
						|
                                      &Com
 | 
						|
                                      );
 | 
						|
 | 
						|
    NewConsoleContext->IsActive = BdsLibMatchDevicePaths (
 | 
						|
                                    DevicePath,
 | 
						|
                                    NewConsoleContext->DevicePath
 | 
						|
                                    );
 | 
						|
 | 
						|
    if (NewConsoleContext->IsTerminal) {
 | 
						|
      BOpt_DestroyMenuEntry (NewMenuEntry);
 | 
						|
    } else {
 | 
						|
      Index2++;
 | 
						|
      ConsoleMenu->MenuNumber++;
 | 
						|
      InsertTailList (&ConsoleMenu->Head, &NewMenuEntry->Link);
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  return EFI_SUCCESS;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Build up ConsoleOutMenu, ConsoleInpMenu and ConsoleErrMenu
 | 
						|
 | 
						|
  @retval EFI_SUCCESS    The function always complete successfully.
 | 
						|
 | 
						|
**/
 | 
						|
EFI_STATUS
 | 
						|
GetAllConsoles (
 | 
						|
  VOID
 | 
						|
  )
 | 
						|
{
 | 
						|
  GetConsoleMenu (BM_CONSOLE_IN_CONTEXT_SELECT);
 | 
						|
  GetConsoleMenu (BM_CONSOLE_OUT_CONTEXT_SELECT);
 | 
						|
  GetConsoleMenu (BM_CONSOLE_ERR_CONTEXT_SELECT);
 | 
						|
  return EFI_SUCCESS;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Free ConsoleOutMenu, ConsoleInpMenu and ConsoleErrMenu
 | 
						|
 | 
						|
  @retval EFI_SUCCESS    The function always complete successfully.
 | 
						|
**/
 | 
						|
EFI_STATUS
 | 
						|
FreeAllConsoles (
 | 
						|
  VOID
 | 
						|
  )
 | 
						|
{
 | 
						|
  BOpt_FreeMenu (&ConsoleOutMenu);
 | 
						|
  BOpt_FreeMenu (&ConsoleInpMenu);
 | 
						|
  BOpt_FreeMenu (&ConsoleErrMenu);
 | 
						|
  BOpt_FreeMenu (&TerminalMenu);
 | 
						|
  return EFI_SUCCESS;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Test whether DevicePath is a valid Terminal
 | 
						|
 | 
						|
 | 
						|
  @param DevicePath      DevicePath to be checked
 | 
						|
  @param Termi           If DevicePath is valid Terminal, terminal type is returned.
 | 
						|
  @param Com             If DevicePath is valid Terminal, Com Port type is returned.
 | 
						|
 | 
						|
  @retval  TRUE         If DevicePath point to a Terminal.
 | 
						|
  @retval  FALSE        If DevicePath does not point to a Terminal.
 | 
						|
 | 
						|
**/
 | 
						|
BOOLEAN
 | 
						|
IsTerminalDevicePath (
 | 
						|
  IN  EFI_DEVICE_PATH_PROTOCOL *DevicePath,
 | 
						|
  OUT TYPE_OF_TERMINAL         *Termi,
 | 
						|
  OUT UINTN                    *Com
 | 
						|
  )
 | 
						|
{
 | 
						|
  UINT8                 *Ptr;
 | 
						|
  BOOLEAN               IsTerminal;
 | 
						|
  VENDOR_DEVICE_PATH    *Vendor;
 | 
						|
  ACPI_HID_DEVICE_PATH  *Acpi;
 | 
						|
  UINT32                Match;
 | 
						|
  EFI_GUID              TempGuid;
 | 
						|
 | 
						|
  IsTerminal = FALSE;
 | 
						|
 | 
						|
  //
 | 
						|
  // Parse the Device Path, should be change later!!!
 | 
						|
  //
 | 
						|
  Ptr = (UINT8 *) DevicePath;
 | 
						|
  while (*Ptr != END_DEVICE_PATH_TYPE) {
 | 
						|
    Ptr++;
 | 
						|
  }
 | 
						|
 | 
						|
  Ptr     = Ptr - sizeof (VENDOR_DEVICE_PATH);
 | 
						|
  Vendor  = (VENDOR_DEVICE_PATH *) Ptr;
 | 
						|
 | 
						|
  //
 | 
						|
  // There are four kinds of Terminal types
 | 
						|
  // check to see whether this devicepath
 | 
						|
  // is one of that type
 | 
						|
  //
 | 
						|
  CopyMem (&TempGuid, &Vendor->Guid, sizeof (EFI_GUID));
 | 
						|
 | 
						|
  if (CompareGuid (&TempGuid, &TerminalTypeGuid[0])) {
 | 
						|
    *Termi      = PC_ANSI;
 | 
						|
    IsTerminal  = TRUE;
 | 
						|
  } else {
 | 
						|
    if (CompareGuid (&TempGuid, &TerminalTypeGuid[1])) {
 | 
						|
      *Termi      = VT_100;
 | 
						|
      IsTerminal  = TRUE;
 | 
						|
    } else {
 | 
						|
      if (CompareGuid (&TempGuid, &TerminalTypeGuid[2])) {
 | 
						|
        *Termi      = VT_100_PLUS;
 | 
						|
        IsTerminal  = TRUE;
 | 
						|
      } else {
 | 
						|
        if (CompareGuid (&TempGuid, &TerminalTypeGuid[3])) {
 | 
						|
          *Termi      = VT_UTF8;
 | 
						|
          IsTerminal  = TRUE;
 | 
						|
        } else {
 | 
						|
          IsTerminal = FALSE;
 | 
						|
        }
 | 
						|
      }
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  if (!IsTerminal) {
 | 
						|
    return FALSE;
 | 
						|
  }
 | 
						|
 | 
						|
  Ptr   = Ptr - sizeof (UART_DEVICE_PATH) - sizeof (ACPI_HID_DEVICE_PATH);
 | 
						|
  Acpi  = (ACPI_HID_DEVICE_PATH *) Ptr;
 | 
						|
  Match = EISA_PNP_ID (0x0501);
 | 
						|
  if (CompareMem (&Acpi->HID, &Match, sizeof (UINT32)) == 0) {
 | 
						|
    CopyMem (Com, &Acpi->UID, sizeof (UINT32));
 | 
						|
  } else {
 | 
						|
    return FALSE;
 | 
						|
  }
 | 
						|
 | 
						|
  return TRUE;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  Get mode number according to column and row
 | 
						|
 | 
						|
  @param CallbackData    The BMM context data.
 | 
						|
**/
 | 
						|
VOID
 | 
						|
GetConsoleOutMode (
 | 
						|
  IN  BMM_CALLBACK_DATA    *CallbackData
 | 
						|
  )
 | 
						|
{
 | 
						|
  UINTN                         Col;
 | 
						|
  UINTN                         Row;
 | 
						|
  UINTN                         CurrentCol;
 | 
						|
  UINTN                         CurrentRow;
 | 
						|
  UINTN                         Mode;
 | 
						|
  UINTN                         MaxMode;
 | 
						|
  EFI_STATUS                    Status;
 | 
						|
  CONSOLE_OUT_MODE              *ModeInfo;
 | 
						|
  EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL  *ConOut;
 | 
						|
 | 
						|
  ConOut   = gST->ConOut;
 | 
						|
  MaxMode  = (UINTN) (ConOut->Mode->MaxMode);
 | 
						|
  ModeInfo = EfiLibGetVariable (VAR_CON_OUT_MODE, &gEfiGenericPlatformVariableGuid);
 | 
						|
 | 
						|
  if (ModeInfo != NULL) {
 | 
						|
    CurrentCol = ModeInfo->Column;
 | 
						|
    CurrentRow = ModeInfo->Row;
 | 
						|
    for (Mode = 0; Mode < MaxMode; Mode++) {
 | 
						|
      Status = ConOut->QueryMode (ConOut, Mode, &Col, &Row);
 | 
						|
      if (!EFI_ERROR(Status)) {
 | 
						|
        if (CurrentCol == Col && CurrentRow == Row) {
 | 
						|
          CallbackData->BmmFakeNvData.ConsoleOutMode = (UINT16) Mode;
 | 
						|
          break;
 | 
						|
        }
 | 
						|
      }
 | 
						|
    }
 | 
						|
    FreePool (ModeInfo);
 | 
						|
  }
 | 
						|
}
 |