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/** @file
Provides a way for 3rd party applications to register themselves for launch by the
Boot Manager based on hot key
Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _HOTKEY_H_
#define _HOTKEY_H_
#include "Bds.h"
#include "String.h"
#define GET_BOOT_OPTION_SUPPORT_KEY_COUNT(a) (((a) & EFI_BOOT_OPTION_SUPPORT_COUNT) >> 8)
#define SET_BOOT_OPTION_SUPPORT_KEY_COUNT(a, c) { \
(a) = ((a) & ~EFI_BOOT_OPTION_SUPPORT_COUNT) | (((c) << 8) & EFI_BOOT_OPTION_SUPPORT_COUNT); \
}
#define BDS_HOTKEY_OPTION_SIGNATURE SIGNATURE_32 ('B', 'd', 'K', 'O')
typedef struct {
UINTN Signature;
LIST_ENTRY Link;
EFI_HANDLE NotifyHandle;
UINT16 BootOptionNumber;
UINT8 CodeCount;
UINT8 WaitingKey;
EFI_KEY_DATA KeyData[3];
} BDS_HOTKEY_OPTION;
#define BDS_HOTKEY_OPTION_FROM_LINK(a) CR (a, BDS_HOTKEY_OPTION, Link, BDS_HOTKEY_OPTION_SIGNATURE)
#define VAR_KEY_ORDER L"KeyOrder"
/**
Create Key#### for the given hotkey.
@param KeyOption - The Hot Key Option to be added.
@param KeyOptionNumber - The key option number for Key#### (optional).
@retval EFI_SUCCESS Register hotkey successfully.
@retval EFI_INVALID_PARAMETER The hotkey option is invalid.
**/
EFI_STATUS
RegisterHotkey (
IN EFI_KEY_OPTION *KeyOption,
OUT UINT16 *KeyOptionNumber
);
/**
Delete Key#### for the given Key Option number.
@param KeyOptionNumber - Key option number for Key####
@retval EFI_SUCCESS Unregister hotkey successfully.
@retval EFI_NOT_FOUND No Key#### is found for the given Key Option number.
**/
EFI_STATUS
UnregisterHotkey (
IN UINT16 KeyOptionNumber
);
/**
Process all the "Key####" variables, associate Hotkeys with corresponding Boot Options.
@param VOID
@retval EFI_SUCCESS Hotkey services successfully initialized.
**/
EFI_STATUS
InitializeHotkeyService (
VOID
);
/**
Try to boot the boot option triggered by hotkey.
**/
VOID
HotkeyBoot (
VOID
);
#endif
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