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Maurice Ma
76e03f7d32
This patch added "CLS" command support to SBL Shell. It can be used to clear the console screen. Signed-off-by: Maurice Ma <maurice.ma@intel.com>
59 lines
1002 B
C
59 lines
1002 B
C
/** @file
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Shell command `cls` to clear the console.
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Copyright (c) 2019, 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 <Library/ShellLib.h>
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/**
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Clear console for shell.
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@param[in] Shell shell instance
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@param[in] Argc number of command line arguments
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@param[in] Argv command line arguments
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@retval EFI_SUCCESS
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**/
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STATIC
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EFI_STATUS
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EFIAPI
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ShellCommandClsFunc (
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IN SHELL *Shell,
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IN UINTN Argc,
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IN CHAR16 *Argv[]
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);
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CONST SHELL_COMMAND ShellCommandCls = {
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L"cls",
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L"Clear console",
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&ShellCommandClsFunc
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};
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/**
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Clear console for shell.
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@param[in] Shell shell instance
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@param[in] Argc number of command line arguments
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@param[in] Argv command line arguments
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@retval EFI_SUCCESS
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**/
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STATIC
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EFI_STATUS
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EFIAPI
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ShellCommandClsFunc (
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IN SHELL *Shell,
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IN UINTN Argc,
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IN CHAR16 *Argv[]
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)
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{
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ShellPrint (L"\x1b[2J");
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return EFI_SUCCESS;
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}
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