MdeModulePkg/Universal/Console/TerminalDxe/ansi.c

   1 /*++
   2
   3 Copyright (c) 2006, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14     ansi.c
  15
  16 Abstract:
  17
  18
  19 Revision History
  20 --*/
  21
  22
  23 //
  24 // Include common header file for this module.
  25 //
  26 #include "CommonHeader.h"
  27
  28 #include "Terminal.h"
  29
  30 VOID
  31 AnsiRawDataToUnicode (
  32   IN  TERMINAL_DEV    *TerminalDevice
  33   )
  34 {
  35   UINT8 RawData;
  36
  37   //
  38   // pop the raw data out from the raw fifo,
  39   // and translate it into unicode, then push
  40   // the unicode into unicode fifo, until the raw fifo is empty.
  41   //
  42   while (!IsRawFiFoEmpty (TerminalDevice)) {
  43
  44     RawFiFoRemoveOneKey (TerminalDevice, &RawData);
  45
  46     UnicodeFiFoInsertOneKey (TerminalDevice, (UINT16) RawData);
  47   }
  48 }
  49
  50 EFI_STATUS
  51 AnsiTestString (
  52   IN  TERMINAL_DEV    *TerminalDevice,
  53   IN  CHAR16          *WString
  54   )
  55 {
  56   CHAR8 GraphicChar;
  57
  58   //
  59   // support three kind of character:
  60   // valid ascii, valid efi control char, valid text graphics.
  61   //
  62   for (; *WString != CHAR_NULL; WString++) {
  63
  64     if ( !(TerminalIsValidAscii (*WString) ||
  65         TerminalIsValidEfiCntlChar (*WString) ||
  66         TerminalIsValidTextGraphics (*WString, &GraphicChar, NULL) )) {
  67
  68       return EFI_UNSUPPORTED;
  69     }
  70   }
  71
  72   return EFI_SUCCESS;
  73 }