MdeModulePkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / MdeModulePkg / Universal / Console / TerminalDxe / Ansi.c

/** @file\r
  Implementation of translation upon PC ANSI.\r
\r
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
\r
#include "Terminal.h"\r
\r
/**\r
  Translate all raw data in the Raw FIFO into unicode, and insert\r
  them into Unicode FIFO.\r
\r
  @param TerminalDevice          The terminal device.\r
\r
**/\r
VOID\r
AnsiRawDataToUnicode (\r
  IN  TERMINAL_DEV    *TerminalDevice\r
  )\r
{\r
  UINT8 RawData;\r
\r
  //\r
  // pop the raw data out from the raw fifo,\r
  // and translate it into unicode, then push\r
  // the unicode into unicode fifo, until the raw fifo is empty.\r
  //\r
  while (!IsRawFiFoEmpty (TerminalDevice) && !IsUnicodeFiFoFull (TerminalDevice)) {\r
\r
    RawFiFoRemoveOneKey (TerminalDevice, &RawData);\r
\r
    UnicodeFiFoInsertOneKey (TerminalDevice, (UINT16) RawData);\r
  }\r
}\r
\r
/**\r
  Check if input string is valid Ascii string, valid EFI control characters\r
  or valid text graphics.\r
\r
  @param  TerminalDevice          The terminal device.\r
  @param  WString                 The input string.\r
\r
  @retval EFI_UNSUPPORTED         If not all input characters are valid.\r
  @retval EFI_SUCCESS             If all input characters are valid.\r
\r
**/\r
EFI_STATUS\r
AnsiTestString (\r
  IN  TERMINAL_DEV    *TerminalDevice,\r
  IN  CHAR16          *WString\r
  )\r
{\r
  CHAR8 GraphicChar;\r
\r
  //\r
  // support three kind of character:\r
  // valid ascii, valid efi control char, valid text graphics.\r
  //\r
  for (; *WString != CHAR_NULL; WString++) {\r
\r
    if ( !(TerminalIsValidAscii (*WString) ||\r
        TerminalIsValidEfiCntlChar (*WString) ||\r
        TerminalIsValidTextGraphics (*WString, &GraphicChar, NULL) )) {\r
\r
      return EFI_UNSUPPORTED;\r
    }\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r