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