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/** @file
The EFI_FORM_BROWSER_PROTOCOL is the interface to the EFI
Configuration Driver. This will allow the caller to direct the
configuration driver to use either the HII database or use the passed
in packet of data. This will also allow the caller to post messages
into the configuration drivers internal mailbox.
Copyright (c) 2006, Intel Corporation
All rights reserved. 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.
Module Name: FormBrowser.h
@par Revision Reference:
This protocol is defined in HII spec 0.92.
**/
#ifndef __FORM_BROWSER_H__
#define __FORM_BROWSER_H__
#define EFI_FORM_BROWSER_PROTOCOL_GUID \
{ \
0xe5a1333e, 0xe1b4, 0x4d55, {0xce, 0xeb, 0x35, 0xc3, 0xef, 0x13, 0x34, 0x43 } \
}
typedef struct _EFI_FORM_BROWSER_PROTOCOL EFI_FORM_BROWSER_PROTOCOL;
typedef struct {
UINT32 Length;
UINT16 Type;
UINT8 Data[1];
} EFI_HII_PACKET;
typedef struct {
EFI_HII_IFR_PACK *IfrData;
EFI_HII_STRING_PACK *StringData;
} EFI_IFR_PACKET;
typedef struct {
UINTN LeftColumn;
UINTN RightColumn;
UINTN TopRow;
UINTN BottomRow;
} EFI_SCREEN_DESCRIPTOR;
/**
Provides direction to the configuration driver whether to use the HII
database or a passed-in set of data. This function also establishes a
pointer to the calling driver's callback interface.
@param This A pointer to the EFI_FORM_BROWSER_PROTOCOL instance.
@param UseDatabase Determines whether the HII database is to be
used to gather information. If the value is FALSE, the configuration
driver will get the information provided in the passed-in Packet parameters.
@param Handle A pointer to an array of HII handles to display. This value
should correspond to the value of the HII form package that is required to
be displayed.
@param HandleCount The number of handles in the array specified by Handle.
@param Packet A pointer to a set of data containing pointers to IFR
and/or string data.
@param CallbackHandle The handle to the driver's callback interface.
This parameter is used only when the UseDatabase parameter is FALSE
and an application wants to register a callback with the browser
@param NvMapOverride This buffer is used only when there is no NV variable
to define the current settings and the caller needs to provide to the browser
the current settings for the "fake" NV variable.
@param ScreenDimensions Allows the browser to be called so that it occupies
a portion of the physical screen instead of dynamically determining the
screen dimensions.
@param ResetRequired This BOOLEAN value will tell the caller if a reset
is required based on the data that might have been changed. The ResetRequired
parameter is primarily applicable for configuration applications, and is an
optional parameter.
@retval EFI_SUCCESS The function completed successfully
@retval EFI_NOT_FOUND The variable was not found.
@retval EFI_BUFFER_TOO_SMALL The DataSize is too small for the result.
DataSize has been updated with the size needed to complete the request.
@retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
@retval EFI_DEVICE_ERROR The variable could not be saved due to a hardware failure.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SEND_FORM) (
IN EFI_FORM_BROWSER_PROTOCOL *This,
IN BOOLEAN UseDatabase,
IN EFI_HII_HANDLE *Handle,
IN UINTN HandleCount,
IN EFI_IFR_PACKET *Packet, OPTIONAL
IN EFI_HANDLE CallbackHandle, OPTIONAL
IN UINT8 *NvMapOverride, OPTIONAL
IN EFI_SCREEN_DESCRIPTOR *ScreenDimensions, OPTIONAL
OUT BOOLEAN *ResetRequired OPTIONAL
);
/**
Routine used to abstract a generic dialog interface and return the selected
key or string.
@param NumberOfLines The number of lines for the dialog box.
@param HotKey Defines whether a single character is parsed (TRUE)
and returned in KeyValue or if a string is returned in StringBuffer.
@param MaximumStringSize The maximum size in bytes of a typed-in string.
Because each character is a CHAR16, the minimum string returned is two bytes.
@param StringBuffer The passed-in pointer to the buffer that will hold
the typed in string if HotKey is FALSE.
@param KeyValue The EFI_INPUT_KEY value returned if HotKey is TRUE.
@param String The pointer to the first string in the list of strings
that comprise the dialog box.
@param ... A series of NumberOfLines text strings that will be used
to construct the dialog box.
@retval EFI_SUCCESS The dialog was displayed and user interaction was received.
@retval EFI_DEVICE_ERROR The user typed in an ESC character to exit the routine.
@retval EFI_INVALID_PARAMETER One of the parameters was invalid
**/
typedef
EFI_STATUS
(EFIAPI *EFI_CREATE_POP_UP) (
IN UINTN NumberOfLines,
IN BOOLEAN HotKey,
IN UINTN MaximumStringSize,
OUT CHAR16 *StringBuffer,
OUT EFI_INPUT_KEY *KeyValue,
IN CHAR16 *String,
...
);
/**
@par Protocol Description:
The EFI_FORM_BROWSER_PROTOCOL is the interface to call for drivers to
leverage the EFI configuration driver interface.
@param SendForm
Provides direction to the configuration driver whether to use the HII
database or to use a passed-in set of data. This functions also establishes
a pointer to the calling driver's callback interface.
@param CreatePopUp
Routine used to abstract a generic dialog interface and return the
selected key or string.
**/
struct _EFI_FORM_BROWSER_PROTOCOL {
EFI_SEND_FORM SendForm;
EFI_CREATE_POP_UP CreatePopUp;
};
extern EFI_GUID gEfiFormBrowserProtocolGuid;
#endif
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