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/** @file
This is an example of how a driver retrieve HII data using HII Package List
Protocol, and how to publish the HII data.
Copyright (c) 2009 - 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.
**/
#include <Uefi.h>
#include <Guid/HiiResourceSampleHii.h>
#include <Protocol/HiiPackageList.h>
#include <Library/DevicePathLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiHiiServicesLib.h>
#include <Library/HiiLib.h>
#pragma pack(1)
///
/// HII specific Vendor Device Path definition.
///
typedef struct {
VENDOR_DEVICE_PATH VendorDevicePath;
EFI_DEVICE_PATH_PROTOCOL End;
} HII_VENDOR_DEVICE_PATH;
#pragma pack()
EFI_HII_HANDLE mHiiHandle = NULL;
EFI_HANDLE mDriverHandle = NULL;
HII_VENDOR_DEVICE_PATH mHiiVendorDevicePath = {
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
}
},
HII_RESOURCE_SAMPLE_FORM_SET_GUID
},
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
{
(UINT8) (END_DEVICE_PATH_LENGTH),
(UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)
}
}
};
/**
Main entry for this driver.
@param[in] ImageHandle Image handle this driver.
@param[in] SystemTable Pointer to SystemTable.
@retval EFI_SUCESS This function always complete successfully.
**/
EFI_STATUS
EFIAPI
HiiResourcesSampleInit (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_HII_PACKAGE_LIST_HEADER *PackageList;
//
// Retrieve HII package list from ImageHandle
//
Status = gBS->OpenProtocol (
ImageHandle,
&gEfiHiiPackageListProtocolGuid,
(VOID **) &PackageList,
ImageHandle,
NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Publish sample Fromset
//
Status = gBS->InstallProtocolInterface (
&mDriverHandle,
&gEfiDevicePathProtocolGuid,
EFI_NATIVE_INTERFACE,
&mHiiVendorDevicePath
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Publish HII package list to HII Database.
//
Status = gHiiDatabase->NewPackageList (
gHiiDatabase,
PackageList,
mDriverHandle,
&mHiiHandle
);
if (EFI_ERROR (Status)) {
return Status;
}
return EFI_SUCCESS;
}
/**
Unloads the application and its installed protocol.
@param[in] ImageHandle Handle that identifies the image to be unloaded.
@retval EFI_SUCCESS The image has been unloaded.
**/
EFI_STATUS
EFIAPI
HiiResourcesSampleUnload (
IN EFI_HANDLE ImageHandle
)
{
if (mDriverHandle != NULL) {
gBS->UninstallProtocolInterface (
mDriverHandle,
&gEfiDevicePathProtocolGuid,
&mHiiVendorDevicePath
);
mDriverHandle = NULL;
}
if (mHiiHandle != NULL) {
HiiRemovePackages (mHiiHandle);
mHiiHandle = NULL;
}
return EFI_SUCCESS;
}
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