71 lines
1.4 KiB
C
71 lines
1.4 KiB
C
|
/*++
|
||
|
|
|
||
|
|
Copyright (c) 1998 Intel Corporation
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
cls.c
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
Revision History
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
#include "shell.h"
|
||
|
|
|
||
|
|
EFI_STATUS
|
||
|
|
InitializeCls (
|
||
|
|
IN EFI_HANDLE ImageHandle,
|
||
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
||
|
|
);
|
||
|
|
|
||
|
|
EFI_DRIVER_ENTRY_POINT(InitializeCls)
|
||
|
|
|
||
|
|
EFI_STATUS
|
||
|
|
InitializeCls (
|
||
|
|
IN EFI_HANDLE ImageHandle,
|
||
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
||
|
|
)
|
||
|
|
{
|
||
|
|
UINTN Background;
|
||
|
|
/*
|
||
|
|
* Check to see if the app is to install as a "internal command"
|
||
|
|
* to the shell
|
||
|
|
*/
|
||
|
|
|
||
|
|
InstallInternalShellCommand (
|
||
|
|
ImageHandle, SystemTable, InitializeCls,
|
||
|
|
L"cls", /* command */
|
||
|
|
L"cls [background color]", /* command syntax */
|
||
|
|
L"Clear screen", /* 1 line descriptor */
|
||
|
|
NULL /* command help page */
|
||
|
|
);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* We are no being installed as an internal command driver, initialize
|
||
|
|
* as an nshell app and run
|
||
|
|
*/
|
||
|
|
|
||
|
|
InitializeShellApplication (ImageHandle, SystemTable);
|
||
|
|
|
||
|
|
/*
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
if ( SI->Argc > 1 ) {
|
||
|
|
Background = xtoi(SI->Argv[1]);
|
||
|
|
if (Background > EFI_LIGHTGRAY) {
|
||
|
|
Background = EFI_BLACK;
|
||
|
|
}
|
||
|
|
ST->ConOut->SetAttribute(ST->ConOut,(ST->ConOut->Mode->Attribute & 0x0f) | (Background << 4));
|
||
|
|
}
|
||
|
|
|
||
|
|
ST->ConOut->ClearScreen(ST->ConOut);
|
||
|
|
|
||
|
|
return EFI_SUCCESS;
|
||
|
|
}
|
||
|
|
|