MdeModulePkg/Universal/Console/TerminalDxe/ansi.c

   1 /** @file
   2   Provides misc functions upon ansi.
   3
   4 Copyright (c) 2006, Intel Corporation. <BR>
   5 All rights reserved. This program and the accompanying materials
   6 are licensed and made available under the terms and conditions of the BSD License
   7 which accompanies this distribution.  The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15
  16 #include "Terminal.h"
  17
  18 VOID
  19 AnsiRawDataToUnicode (
  20   IN  TERMINAL_DEV    *TerminalDevice
  21   )
  22 {
  23   UINT8 RawData;
  24
  25   //
  26   // pop the raw data out from the raw fifo,
  27   // and translate it into unicode, then push
  28   // the unicode into unicode fifo, until the raw fifo is empty.
  29   //
  30   while (!IsRawFiFoEmpty (TerminalDevice)) {
  31
  32     RawFiFoRemoveOneKey (TerminalDevice, &RawData);
  33
  34     UnicodeFiFoInsertOneKey (TerminalDevice, (UINT16) RawData);
  35   }
  36 }
  37
  38 EFI_STATUS
  39 AnsiTestString (
  40   IN  TERMINAL_DEV    *TerminalDevice,
  41   IN  CHAR16          *WString
  42   )
  43 {
  44   CHAR8 GraphicChar;
  45
  46   //
  47   // support three kind of character:
  48   // valid ascii, valid efi control char, valid text graphics.
  49   //
  50   for (; *WString != CHAR_NULL; WString++) {
  51
  52     if ( !(TerminalIsValidAscii (*WString) ||
  53         TerminalIsValidEfiCntlChar (*WString) ||
  54         TerminalIsValidTextGraphics (*WString, &GraphicChar, NULL) )) {
  55
  56       return EFI_UNSUPPORTED;
  57     }
  58   }
  59
  60   return EFI_SUCCESS;
  61 }