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/** @file
HII Library implementation that uses DXE protocols and services.
Copyright (c) 2006, Intel Corporation<BR>
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.
**/
#include <FrameworkDxe.h>
#include <Protocol/FrameworkHii.h>
#include <Library/DebugLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/MemoryAllocationLib.h>
EFI_HII_PROTOCOL *gHiiProtocol = NULL;
/**
The constructor function for HiiLibFramework library instance
The constructor function locates Hii protocol from protocol database.
It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
**/
EFI_STATUS
EFIAPI
HiiLibFrameworkConstructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = gBS->LocateProtocol (
&gEfiHiiProtocolGuid,
NULL,
(VOID **) &gHiiProtocol
);
ASSERT_EFI_ERROR (Status);
return Status;
}
/**
This function allocates pool for an EFI_HII_PACKAGES structure
with enough space for the variable argument list of package pointers.
The allocated structure is initialized using NumberOfPackages, Guid,
and the variable length argument list of package pointers.
@param NumberOfPackages The number of HII packages to prepare.
@param Guid Package GUID.
@param Args Package contents
@return The allocated and initialized packages.
**/
EFI_HII_PACKAGES *
InternalPreparePackages (
IN UINTN NumberOfPackages,
IN CONST EFI_GUID *Guid OPTIONAL,
IN VA_LIST Args
)
{
EFI_HII_PACKAGES *HiiPackages;
VOID **Package;
UINTN Index;
ASSERT (NumberOfPackages > 0);
HiiPackages = AllocateZeroPool (sizeof (EFI_HII_PACKAGES) + NumberOfPackages * sizeof (VOID *));
ASSERT (HiiPackages != NULL);
HiiPackages->GuidId = (EFI_GUID *) Guid;
HiiPackages->NumberOfPackages = NumberOfPackages;
Package = (VOID **) (((UINT8 *) HiiPackages) + sizeof (EFI_HII_PACKAGES));
for (Index = 0; Index < NumberOfPackages; Index++) {
*Package = VA_ARG (Args, VOID *);
Package++;
}
return HiiPackages;
}
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