/** @file
This file defines the Human Interface Infrastructure protocol, which is
used by resources that want to publish IFR/Font/String data and have it
collected by the Configuration engine.
Copyright (c) 2007 - 2010, 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 that 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.
@par Revision Reference:
This protocol is defined in Framework for EFI Human Interface Infrastructure
Specification Version 0.92.
**/
#ifndef _FRAMEWORK_HII_H_
#define _FRAMEWORK_HII_H_
//
// EFI_GRAPHICS_OUTPUT_BLT_PIXEL is defined in MdePkg/Protocol/GraphicsOutput.h
//
#include <Protocol/GraphicsOutput.h>
///
/// In both EDK and EDK II, there is an incompatbile change in the Framework HII protocol.
/// This change should cause a change of GUID in both of code and HII specification. But we
/// updated the GUID in code in EDK and EDK II. The 0.92 specification is not updated. This
/// is a known issue.
///
///
/// Note that EFI_HII_PROTOCOL_GUID is different from that defined in the Framework HII
/// 0.92 specification because the specification changed part of HII interfaces but did not update the protocol
/// GUID.
///
#define EFI_HII_PROTOCOL_GUID \
{ \
0xd7ad636e, 0xb997, 0x459b, {0xbf, 0x3f, 0x88, 0x46, 0x89, 0x79, 0x80, 0xe1} \
}
#define EFI_HII_COMPATIBILITY_PROTOCOL_GUID \
{ \
0x5542cce1, 0xdf5c, 0x4d1b, { 0xab, 0xca, 0x36, 0x4f, 0x77, 0xd3, 0x99, 0xfb } \
}
typedef UINT32 RELOFST;
typedef struct _EFI_HII_PROTOCOL EFI_HII_PROTOCOL;
///
/// Note: Name difference between code and the Framework HII 0.92 specificaiton.
/// Add FRAMEWORK_ prefix to avoid a name confict with EFI_HII_HANDLE, defined in the
/// UEFI 2.1d specification.
///
typedef UINT16 FRAMEWORK_EFI_HII_HANDLE;
///
/// HII package type values
///
#define EFI_HII_FONT 1
#define EFI_HII_STRING 2
#define EFI_HII_IFR 3
#define EFI_HII_KEYBOARD 4
#define EFI_HII_HANDLES 5
#define EFI_HII_VARIABLE 6
#define EFI_HII_DEVICE_PATH 7
//
// References to string tokens must use this macro to enable scanning for
// token usages.
//
#define STRING_TOKEN(t) t
//
// The following types are currently defined:
// EFI_FORM_ID has been defined in UEFI spec.
//
typedef UINT16 EFI_FORM_LABEL;
#pragma pack(1)
///
/// The header found at the start of each package.
///
typedef struct {
UINT32 Length; ///< The size of the package in bytes.
UINT16 Type; ///< The type of the package.
} EFI_HII_PACK_HEADER;
///
/// The IFR package structure.
/// Immediately following the EFI_HII_IFR_PACK structure will be a series of IFR opcodes.
///
typedef struct {
EFI_HII_PACK_HEADER Header; ///< Header of the IFR package.
} EFI_HII_IFR_PACK;
///
/// HII Handle package structure.
///
typedef struct {
///
/// Header of the package.
///
EFI_HII_PACK_HEADER Header; ///< Must be filled in.
///
/// The image handle of the driver to which the package is referring.
///
EFI_HANDLE ImageHandle; ///< Must be filled in.
///
/// The handle of the device that is being described by this package.
///
EFI_HANDLE DeviceHandle; ///< Optional.
///
/// The handle of the parent of the device that is being described by this package.
///
EFI_HANDLE ControllerHandle; ///< Optional.
///
/// The handle that was registered to receive EFI_FORM_CALLBACK_PROTOCOL calls from other drivers.
///
EFI_HANDLE CallbackHandle; ///< Optional.
///
/// Note this field is not defined in the Framework HII 0.92 specificaiton.
/// Unused. Reserved for source code compatibility.
///
EFI_HANDLE COBExportHandle; ///< Optional.
} EFI_HII_HANDLE_PACK;
///
/// The variable package structure.
///
typedef struct {
///
/// The header of the package.
///
EFI_HII_PACK_HEADER Header;
///
/// The GUID of the EFI variable.
///
EFI_GUID VariableGuid;
///
/// The length in bytes of the EFI variable.
///
UINT32 VariableNameLength;
///
/// The unique value for this variable.
///
UINT16 VariableId;
//
// CHAR16 VariableName[]; //Null-terminated
//
} EFI_HII_VARIABLE_PACK;
///
/// The device path package structure.
///
typedef struct {
///
/// The header of the package.
///
EFI_HII_PACK_HEADER Header;
//
// EFI_DEVICE_PATH DevicePath[];
//
} EFI_HII_DEVICE_PATH_PACK;
typedef struct {
///
/// A unique value that correlates to the original HII handle.
///
FRAMEWORK_EFI_HII_HANDLE HiiHandle;
///
/// If an IFR pack exists in a data table that does not contain strings,
/// then the strings for that IFR pack are located in another data table
/// that contains a string pack and has a matching HiiDataTable.PackageGuid.
///
EFI_GUID PackageGuid;
///
/// The size of the EFI_HII_DATA_TABLE in bytes.
///
UINT32 DataTableSize;
///
/// The byte offset from the start of this structure to the IFR data.
/// If the offset value is 0, then no IFR data is enclosed.
///
UINT32 IfrDataOffset;
///
/// The byte offset from the start of this structure to the string data.
/// If the offset value is 0, then no string data is enclosed.
///
UINT32 StringDataOffset;
///
/// The byte offset from the start of this structure to the variable data.
/// If the offset value is 0, then no variable data is enclosed.
///
UINT32 VariableDataOffset;
///
/// The byte offset from the start of this structure to the device path data.
/// If the offset value is 0, then no DevicePath data is enclosed.
///
UINT32 DevicePathOffset;
///
/// The number of VariableData[] elements in the array.
///
UINT32 NumberOfVariableData;
///
/// The number of language string packages.
///
UINT32 NumberOfLanguages;
//
// EFI_HII_DEVICE_PATH_PACK DevicePath[];
// EFI_HII_VARIABLE_PACK VariableData[];
// EFI_HII_IFR_PACK IfrData;
// EFI_HII_STRING_PACK StringData[];
//
} EFI_HII_DATA_TABLE;
///
/// The structure defining the format for exporting data from the HII Database.
///
typedef struct {
///
/// Number of EFI_HII_DATA_TABLE entries.
///
UINT32 NumberOfHiiDataTables;
///
/// Defines the revision of the EFI_HII_DATA_TABLE structure.
///
EFI_GUID Revision;
//
// EFI_HII_DATA_TABLE HiiDataTable[];
//
} EFI_HII_EXPORT_TABLE;
///
/// The structure used to pass data to update a form or form package
/// that has previously been registered with the EFI HII database.
///
typedef struct {
///
/// If TRUE, indicates that the FormCallbackHandle value will
/// be used to update the contents of the CallBackHandle entry in the form set.
///
BOOLEAN FormSetUpdate;
///
/// This parameter is valid only when FormSetUpdate is TRUE.
/// The value in this parameter will be used to update the contents
/// of the CallbackHandle entry in the form set.
///
EFI_PHYSICAL_ADDRESS FormCallbackHandle;
///
/// If TRUE, indicates that the FormTitle contents will be
/// used to update the FormValue's title.
///
BOOLEAN FormUpdate;
///
/// Specifies which form is to be updated if the FormUpdate value is TRUE.
///
UINT16 FormValue;
///
/// This parameter is valid only when the FormUpdate parameter is TRUE.
/// The value in this parameter will be used to update the contents of the form title.
///
STRING_REF FormTitle;
///
/// The number of Data entries in this structure.
UINT16 DataCount;
///
/// An array of 1+ opcodes, specified by DataCount.
///
UINT8 *Data;
} EFI_HII_UPDATE_DATA;
//
// String attributes
//
#define LANG_RIGHT_TO_LEFT 0x00000001
///
/// A string package is used to localize strings to a particular
/// language. The package is associated with a particular driver
/// or set of drivers. Tools are used to associate tokens with
/// string references in forms and in programs. These tokens are
/// language agnostic. When paired with a language pack (directly
/// or indirectly), the string token resolves into an actual
/// UNICODE string. NumStringPointers determines how many
/// StringPointers (offset values) there are, as well as the total
/// number of Strings that are defined.
///
typedef struct {
///
/// The header of the package.
///
EFI_HII_PACK_HEADER Header;
///
/// The string containing one or more ISO 639-2 three-character designator(s)
/// of the language or languages whose translations are contained in this language pack.
/// The first designator indicates the primary language, while the others are secondary languages.
///
RELOFST LanguageNameString;
///
/// Contains the offset into this structure of a printable name of the language
/// for use when prompting the user. The language printed is to be the primary language.
///
RELOFST PrintableLanguageName;
///
/// The number of Strings and StringPointers contained within the string package.
///
UINT32 NumStringPointers;
///
/// Indicates the direction the language is to be printed.
///
UINT32 Attributes;
//
// RELOFST StringPointers[];
// EFI_STRING Strings[];
//
} EFI_HII_STRING_PACK;
///
/// A font list consists of a font header followed by a series
/// of glyph structures. Note that fonts are not language specific.
///
typedef struct {
///
/// The header of the package.
///
EFI_HII_PACK_HEADER Header;
///
/// The number of NarrowGlyphs that are included in the font package.
///
UINT16 NumberOfNarrowGlyphs;
///
/// The number of WideGlyphs that are included in the font package.
///
UINT16 NumberOfWideGlyphs;
//EFI_NARROW_GLYPH NarrowGlyphs[];
//EFI_WIDE_GLYPH WideGlyphs[];
} EFI_HII_FONT_PACK;
///
/// The definition of a specific physical key
///
/// Note: The name difference between code and the Framework HII 0.92 specification.
/// Add FRAMEWORK_ prefix to avoid name confict with EFI_KEY_DESCRIPTOR defined in the
/// UEFI 2.1d specification.
///
typedef struct {
///
/// Used to describe a physical key on a keyboard.
///
EFI_KEY Key;
///
/// The Unicode value for the Key.
CHAR16 Unicode;
///
/// The Unicode value for the key with the shift key being held down.
///
CHAR16 ShiftedUnicode;
///
/// The Unicode value for the key with the Alt-GR being held down.
///
CHAR16 AltGrUnicode;
///
/// The Unicode value for the key with the Alt-GR and shift keys being held down.
///
CHAR16 ShiftedAltGrUnicode;
///
/// Modifier keys are defined to allow for special functionality that
/// is not necessarily accomplished by a printable character.
///
UINT16 Modifier;
} FRAMEWORK_EFI_KEY_DESCRIPTOR;
///
/// This structure allows a sparse set of keys to be redefined
/// or a complete redefinition of the keyboard layout. Most
/// keyboards have a lot of commonality in their layouts, therefore
/// only defining those keys that need to change from the default
/// minimizes the passed in information.
///
/// Additionally, when an update occurs, the active keyboard layout
/// will be switched to the newly updated keyboard layout. This
/// allows for situations that when a keyboard layout driver is
/// loaded as part of system initialization, the system will default
/// the keyboard behavior to the new layout.
///
typedef struct {
///
/// The header of the package.
EFI_HII_PACK_HEADER Header;
///
/// A pointer to a buffer containing an array of EFI_KEY_DESCRIPTOR entries.
/// Each entry will reflect the definition of a specific physical key.
///
FRAMEWORK_EFI_KEY_DESCRIPTOR *Descriptor;
///
/// The number of Descriptor entries being described.
///
UINT8 DescriptorCount;
} EFI_HII_KEYBOARD_PACK;
///
/// The packages structure that will be used to pass contents into the HII database.
///
/// The EFI_HII_PACKAGES can contain various number of packages of different types just
/// after the structure as inline data.
///
typedef struct {
///
/// The number of packages being defined in this structure.
///
UINTN NumberOfPackages;
///
/// The GUID to be used to identify this set of packages that are being exported
/// to the HII database.
///
EFI_GUID *GuidId;
//
// EFI_HII_HANDLE_PACK *HandlePack; // Only one pack.
// EFI_HII_IFR_PACK *IfrPack; // Only one pack.
// EFI_HII_FONT_PACK *FontPack[]; // Multiple packs ok
// EFI_HII_STRING_PACK *StringPack[]; // Multiple packs ok
// EFI_HII_KEYBOARD_PACK *KeyboardPack[]; // Multiple packs ok
//
} EFI_HII_PACKAGES;
///
/// The packed link list that contains all the discernable defaults of variables
/// for the opcodes that are defined in this Handle's domain of data.
///
typedef struct _EFI_HII_VARIABLE_PACK_LIST {
///
/// A pointer points to the next data structure of type
/// EFI_HII_VARIABLE_PACK_LIST in the packed link list.
///
struct _EFI_HII_VARIABLE_PACK_LIST *NextVariablePack;
///
/// A pointer points to the content of the variable entry defined by GUID/name/data.
///
EFI_HII_VARIABLE_PACK *VariablePack;
//EFI_HII_VARIABLE_PACK Content
} EFI_HII_VARIABLE_PACK_LIST;
#pragma pack()
/**
Registers the various packs that are passed in via the Packages parameter.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Packages A pointer to an EFI_HII_PACKAGES package instance.
@param Handle A pointer to the FRAMEWORK_EFI_HII_HANDLE instance.
@retval EFI_SUCCESS Data was extracted from Packages, the database
was updated with the data, and Handle returned successfully.
@retval EFI_INVALID_PARAMETER The content of Packages was invalid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_NEW_PACK)(
IN EFI_HII_PROTOCOL *This,
IN EFI_HII_PACKAGES *Packages,
OUT FRAMEWORK_EFI_HII_HANDLE *Handle
);
/**
Removes a package from the HII database.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Handle The handle that was registered to the data that
is requested for removal.
@retval EFI_SUCCESS The data associated with the Handle was removed
from the HII database.
@retval EFI_INVALID_PARAMETER The Handle was not valid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_REMOVE_PACK)(
IN EFI_HII_PROTOCOL *This,
IN FRAMEWORK_EFI_HII_HANDLE Handle
);
/**
Determines the handles that are currently active in the database.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param HandleBufferLength On input, a pointer to the length of the handle
buffer. On output, the length of the handle buffer that is required
for the handles found.
@param Handle An array of FRAMEWORK_EFI_HII_HANDLE instances returned.
@retval EFI_SUCCESS Handle was updated successfully.
@retval EFI_BUFFER_TOO_SMALL The HandleBufferLength parameter indicates
that Handle is too small to support the number of handles.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_FIND_HANDLES)(
IN EFI_HII_PROTOCOL *This,
IN OUT UINT16 *HandleBufferLength,
OUT FRAMEWORK_EFI_HII_HANDLE *Handle
);
/**
Exports the contents of the database into a buffer.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Handle A FRAMEWORK_EFI_HII_HANDLE that corresponds to the desired
handle to export. If the value is 0, the entire database will be exported.
The data is exported in a format described by the
structure definition of EFI_HII_EXPORT_TABLE.
@param BufferSize
On input, a pointer to the length of the buffer. On output, the length
of the buffer that is required for the export data.
@param Buffer A pointer to a buffer that will contain the results of the export function.
@retval EFI_SUCCESS The buffer was successfully filled with BufferSize amount of data.
@retval EFI_BUFFER_TOO_SMALL The value in BufferSize was too small to contain the export data.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_EXPORT)(
IN EFI_HII_PROTOCOL *This,
IN FRAMEWORK_EFI_HII_HANDLE Handle,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer
);
/**
Remove any new strings that were added after the initial string export
for this handle.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Handle The handle on which the string resides.
@retval EFI_SUCCESS Successfully removed strings from the handle.
@retval EFI_INVALID_PARAMETER The Handle was unknown.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_RESET_STRINGS)(
IN EFI_HII_PROTOCOL *This,
IN FRAMEWORK_EFI_HII_HANDLE Handle
);
/**
Tests if all of the characters in a string have corresponding font characters.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param StringToTest A pointer to a Unicode string.
@param FirstMissing A pointer to an index into the string. On input,
the index of the first character in the StringToTest
to examine. On exit, the index of the first character
encountered for which a glyph is unavailable.
If all glyphs in the string are available, the
index is the index of the terminator of the string.
@param GlyphBufferSize A pointer to a value. On output, if the function
returns EFI_SUCCESS, it contains the amount of
memory that is required to store the string's
glyph equivalent.
@retval EFI_SUCCESS All glyphs are available. Note that an empty string
always returns this value.
@retval EFI_NOT_FOUND A glyph was not found for a character.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_TEST_STRING)(
IN EFI_HII_PROTOCOL *This,
IN CHAR16 *StringToTest,
IN OUT UINT32 *FirstMissing,
OUT UINT32 *GlyphBufferSize
);
/**
Translates a Unicode character into the corresponding font glyph.
Note that this function prototype name is different from that in the Framework HII 0.92 specification
to avoid name confict with EFI_HII_GET_GLYPH defined in the UEFI 2.1d specification.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Source A pointer to a Unicode string.
@param Index On input, the offset into the string from which to
fetch the character. On successful completion, the
index is updated to the first character past the
character(s) making up the just extracted glyph.
@param GlyphBuffer Pointer to an array where the glyphs corresponding
to the characters in the source may be stored.
GlyphBuffer is assumed to be wide enough to accept
a wide glyph character.
@param BitWidth If EFI_SUCCESS was returned, the UINT16 pointed to by
this value is filled with the length of the glyph in
pixels. It is unchanged if the call was unsuccessful.
@param InternalStatus The cell pointed to by this parameter must be
initialized to zero prior to invoking the call the
first time for any string.
@retval EFI_SUCCESS Found the corresponding font glyph for a Unicode
character.
@retval EFI_NOT_FOUND A glyph for a character was not found.
**/
typedef
EFI_STATUS
(EFIAPI *FRAMEWORK_EFI_HII_GET_GLYPH)(
IN EFI_HII_PROTOCOL *This,
IN CHAR16 *Source,
IN OUT UINT16 *Index,
OUT UINT8 **GlyphBuffer,
OUT UINT16 *BitWidth,
IN OUT UINT32 *InternalStatus
);
/**
Translates a glyph into the format required for input to the Universal
Graphics Adapter (UGA) Block Transfer (BLT) routines.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param GlyphBuffer A pointer to the buffer that contains glyph data.
@param Foreground The foreground setting requested to be used for the
generated BltBuffer data.
@param Background The background setting requested to be used for the
generated BltBuffer data.
@param Count The entry in the BltBuffer upon which to act.
@param Width The width in bits of the glyph being converted.
@param Height The height in bits of the glyph being converted
@param BltBuffer A pointer to the buffer that contains the data that is
ready to be used by the UGA BLT routines.
@retval EFI_SUCCESS Successfully translated a glyph into the required
format for input to UGA BLT routines.
@retval EFI_NOT_FOUND A glyph for a character was not found.
@note Inconsistent with specification here:
In Framework Spec, HII specification 0.92. The type of 3rd, 4th and 8th parameter is EFI_UGA_PIXEL.
Here the definition uses the EFI_GRAPHICS_OUTPUT_BLT_PIXEL, which is defined in UEFI 2.1 specification.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_GLYPH_TO_BLT)(
IN EFI_HII_PROTOCOL *This,
IN UINT8 *GlyphBuffer,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
IN UINTN Count,
IN UINTN Width,
IN UINTN Height,
IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer
);
/**
Allows a new string to be added to an already existing string package.
Note that this function prototype name is different from that in the Framework HII 0.92 specification
to avoid name confict with EFI_HII_NEW_STRING defined in the UEFI 2.1d specification.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Pointer to a NULL-terminated string containing a single
ISO 639-2 language identifier, indicating the language
in which the string is translated.
@param Handle The handle of the language pack to which the string
is to be added.
@param Reference The identifier of the string to be added. If the
reference value is zero, then the string will be
assigned a new identifier on that handle for
the language specified. Otherwise, the string will
be updated with the NewString Value.
@param NewString The string to be added.
@retval EFI_SUCCESS The string was effectively registered.
@retval EFI_INVALID_PARAMETER The Handle was unknown.
**/
typedef
EFI_STATUS
(EFIAPI *FRAMEWORK_EFI_HII_NEW_STRING)(
IN EFI_HII_PROTOCOL *This,
IN CHAR16 *Language,
IN FRAMEWORK_EFI_HII_HANDLE Handle,
IN OUT STRING_REF *Reference,
IN CHAR16 *NewString
);
/**
Allows a program to determine the primary languages that are supported
on a given handle.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Handle The handle on which the strings reside.
@param LanguageString A string allocated by GetPrimaryLanguages() that
contains a list of all primary languages registered
on the handle.
@retval EFI_SUCCESS LanguageString was correctly returned.
@retval EFI_INVALID_PARAMETER The Handle was unknown.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_GET_PRI_LANGUAGES)(
IN EFI_HII_PROTOCOL *This,
IN FRAMEWORK_EFI_HII_HANDLE Handle,
OUT EFI_STRING *LanguageString
);
/**
Allows a program to determine which secondary languages are supported
on a given handle for a given primary language.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Handle The handle on which the strings reside.
@param PrimaryLanguage Pointer to a NULL-terminated string containing a
single ISO 639-2 language identifier, indicating
the primary language.
@param LanguageString A string allocated by GetSecondaryLanguages()
containing a list of all secondary languages
registered on the handle.
@retval EFI_SUCCESS LanguageString was correctly returned.
@retval EFI_INVALID_PARAMETER The Handle was unknown.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_GET_SEC_LANGUAGES)(
IN EFI_HII_PROTOCOL *This,
IN FRAMEWORK_EFI_HII_HANDLE Handle,
IN CHAR16 *PrimaryLanguage,
OUT EFI_STRING *LanguageString
);
/**
Extracts a string from a package already registered with the EFI HII database.
Note that this function prototype name is different from that in the Framework HII 0.92 specification
to avoid name confict with EFI_HII_GET_STRING defined in the UEFI 2.1d specification.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Handle The handle on which the string resides.
@param Token The string token assigned to the string.
@param Raw If TRUE, the string is returned unedited in the
internal storage format. If false, the string
returned is edited by replacing <cr> with <space>
and by removing special characters such as the
<wide> prefix.
@param LanguageString Pointer to a NULL-terminated string containing a
single ISO 639-2 language identifier, indicating
the language to print. If the LanguageString is
empty (starts with a NULL), the default system
language will be used to determine the language.
@param BufferLength Length of the StringBuffer.
@param StringBuffer The buffer designed to receive the characters in the string.
@retval EFI_SUCCESS StringBuffer is filled with a NULL-terminated string.
@retval EFI_INVALID_PARAMETER The handle or string token is unknown.
@retval EFI_BUFFER_TOO_SMALL The buffer provided was not large enough to
allow the entire string to be stored.
**/
typedef
EFI_STATUS
(EFIAPI *FRAMEWORK_EFI_HII_GET_STRING)(
IN EFI_HII_PROTOCOL *This,
IN FRAMEWORK_EFI_HII_HANDLE Handle,
IN STRING_REF Token,
IN BOOLEAN Raw,
IN CHAR16 *LanguageString,
IN OUT UINTN *BufferLength,
OUT EFI_STRING StringBuffer
);
/**
Allows a program to extract a part of a string of not more than a given width.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Handle The handle on which the string resides.
@param Token The string token assigned to the string.
@param Index On input, the offset into the string where the
line is to start. On output, the index is updated
to point beyond the last character returned in
the call.
@param LineWidth The maximum width of the line in units of narrow glyphs.
@param LanguageString The pointer to a NULL-terminated string containing a
single ISO 639-2 language identifier, indicating
the language to print.
@param BufferLength The pointer to the length of the StringBuffer.
@param StringBuffer The buffer designed to receive the characters in
the string.
@retval EFI_SUCCESS StringBuffer filled with characters that will fit
on the line.
@retval EFI_NOT_FOUND The font glyph for at least one of the characters in
the string is not in the font database.
@retval EFI_BUFFER_TOO_SMALL The buffer provided was not large enough
to allow the entire string to be stored.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_GET_LINE)(
IN EFI_HII_PROTOCOL *This,
IN FRAMEWORK_EFI_HII_HANDLE Handle,
IN STRING_REF Token,
IN OUT UINT16 *Index,
IN UINT16 LineWidth,
IN CHAR16 *LanguageString,
IN OUT UINT16 *BufferLength,
OUT EFI_STRING StringBuffer
);
/**
Allows a program to extract a form or form package that has previously
been registered with the HII database.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Handle Handle on which the form resides.
@param FormId The ID of the form to return. If the ID is zero,
the entire form package is returned.
@param BufferLength On input, the length of the Buffer. On output,
the length of the returned buffer,
@param Buffer The buffer designed to receive the form(s).
@retval EFI_SUCCESS Buffer filled with the requested forms. BufferLength
was updated.
@retval EFI_INVALID_PARAMETER The handle is unknown.
@retval EFI_NOT_FOUND A form on the requested handle cannot be found with
the requested FormId.
@retval EFI_BUFFER_TOO_SMALL The buffer provided was not large enough
to allow the form to be stored.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_GET_FORMS)(
IN EFI_HII_PROTOCOL *This,
IN FRAMEWORK_EFI_HII_HANDLE Handle,
IN EFI_FORM_ID FormId,
IN OUT UINTN *BufferLength,
OUT UINT8 *Buffer
);
/**
Extracts the defaults that are associated with a given handle in the HII database.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Handle The HII handle from which will have default data retrieved.
@param DefaultMask The mask used to specify some type of default
override when extracting the default image data.
@param VariablePackList An indirect pointer to the first entry of a link
list with type EFI_HII_VARIABLE_PACK_LIST.
@retval EFI_SUCCESS The VariablePackList was populated with the appropriate
default setting data.
@retval EFI_NOT_FOUND The IFR does not have any explicit or default map(s).
@retval EFI_INVALID_PARAMETER The HII database entry associated with Handle
contains invalid data.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_GET_DEFAULT_IMAGE)(
IN EFI_HII_PROTOCOL *This,
IN FRAMEWORK_EFI_HII_HANDLE Handle,
IN UINTN DefaultMask,
OUT EFI_HII_VARIABLE_PACK_LIST **VariablePackList
);
/**
Allows the caller to update a form or form package that has previously been
registered with the EFI HII database.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param Handle Handle of the package where the form to be updated resides.
@param Label The label inside the form package where the update is to take place.
@param AddData If TRUE, adding data at a given Label; otherwise,
if FALSE, removing data at a given Label.
@param Data The buffer containing the new tags to insert after the Label
@retval EFI_SUCCESS The form was updated with the new tags.
@retval EFI_INVALID_PARAMETER The buffer for the buffer length does not
contain an integral number of tags.
@retval EFI_NOT_FOUND The Handle, Label, or FormId was not found.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_UPDATE_FORM)(
IN EFI_HII_PROTOCOL *This,
IN FRAMEWORK_EFI_HII_HANDLE Handle,
IN EFI_FORM_LABEL Label,
IN BOOLEAN AddData,
IN EFI_HII_UPDATE_DATA *Data
);
/**
Retrieves the current keyboard layout.
Note that this function prototype name is different from that in the Framework HII 0.92 specification
to avoid name confict with EFI_HII_GET_KEYBOARD_LAYOUT defined in the UEFI 2.1d specification.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param DescriptorCount A pointer to the number of Descriptor entries being
described in the keyboard layout being retrieved.
@param Descriptor A pointer to a buffer containing an array of
FRAMEWORK_EFI_KEY_DESCRIPTOR entries. Each entry
will reflect the definition of a specific physical key.
@retval EFI_SUCCESS The keyboard layout was retrieved successfully.
**/
typedef
EFI_STATUS
(EFIAPI *FRAMEWORK_EFI_HII_GET_KEYBOARD_LAYOUT)(
IN EFI_HII_PROTOCOL *This,
OUT UINT16 *DescriptorCount,
OUT FRAMEWORK_EFI_KEY_DESCRIPTOR *Descriptor
);
///
/// The HII Protocol manages the HII database, which is a repository for data
/// having to do with fonts, strings, forms, keyboards, and other future human
/// interface items.
///
struct _EFI_HII_PROTOCOL {
///
/// Extracts the various packs from a package list.
///
EFI_HII_NEW_PACK NewPack;
///
/// Removes a package from the HII database.
///
EFI_HII_REMOVE_PACK RemovePack;
///
/// Determines the handles that are currently active in the database.
///
EFI_HII_FIND_HANDLES FindHandles;
///
/// Exports the entire contents of the database to a buffer.
///
EFI_HII_EXPORT ExportDatabase;
///
/// Tests if all of the characters in a string have corresponding font characters.
///
EFI_HII_TEST_STRING TestString;
///
/// Translates a Unicode character into the corresponding font glyph.
///
FRAMEWORK_EFI_HII_GET_GLYPH GetGlyph;
///
/// Converts a glyph value into a format that is ready for a UGA BLT command.
///
EFI_HII_GLYPH_TO_BLT GlyphToBlt;
///
/// Allows a new string to be added to an already existing string package.
///
FRAMEWORK_EFI_HII_NEW_STRING NewString;
///
/// Allows a program to determine the primary languages that are supported
/// on a given handle.
///
EFI_HII_GET_PRI_LANGUAGES GetPrimaryLanguages;
///
/// Allows a program to determine which secondary languages are supported
/// on a given handle for a given primary language.
///
EFI_HII_GET_SEC_LANGUAGES GetSecondaryLanguages;
///
/// Extracts a string from a package that is already registered with the
/// EFI HII database.
///
FRAMEWORK_EFI_HII_GET_STRING GetString;
///
/// Removes any new strings that were added after the initial string export
/// for this handle.
///
/// Note this function is not defined in the Framework HII 0.92 specification.
///
EFI_HII_RESET_STRINGS ResetStrings;
///
/// Allows a program to extract a part of a string of not more than a given width.
///
EFI_HII_GET_LINE GetLine;
///
/// Allows a program to extract a form or form package that has been previously registered.
///
EFI_HII_GET_FORMS GetForms;
///
/// Allows a program to extract the nonvolatile image that represents the default storage image.
///
EFI_HII_GET_DEFAULT_IMAGE GetDefaultImage;
///
/// Allows a program to update a previously registered form.
///
EFI_HII_UPDATE_FORM UpdateForm;
///
/// Allows a program to extract the current keyboard layout.
///
FRAMEWORK_EFI_HII_GET_KEYBOARD_LAYOUT GetKeyboardLayout;
};
extern EFI_GUID gEfiHiiProtocolGuid;
extern EFI_GUID gEfiHiiCompatibilityProtocolGuid;
#endif