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/*
* Copyright (c) 2021, Konstantin Aladyshev <aladyshev22@gmail.com>
*
* SPDX-License-Identifier: MIT
*/
#include <Library/BaseMemoryLib.h>
#include <Library/DevicePathLib.h>
#include <Library/HiiLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/UefiLib.h>
#include "Data.h"
extern UINT8 FormBin[];
#pragma pack(1)
typedef struct {
VENDOR_DEVICE_PATH VendorDevicePath;
EFI_DEVICE_PATH_PROTOCOL End;
} HII_VENDOR_DEVICE_PATH;
#pragma pack()
HII_VENDOR_DEVICE_PATH mHiiVendorDevicePath = {
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
}
},
FORMSET_GUID
},
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
{
(UINT8) (END_DEVICE_PATH_LENGTH),
(UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)
}
}
};
EFI_HII_HANDLE mHiiHandle = NULL;
EFI_HANDLE mDriverHandle = NULL;
EFI_STRING UEFIVariableName = UEFI_VARIABLE_STRUCTURE_NAME;
EFI_STATUS
EFIAPI
HIIFormDataElementsUnload (
EFI_HANDLE ImageHandle
)
{
if (mHiiHandle != NULL)
HiiRemovePackages(mHiiHandle);
EFI_STATUS Status;
UINTN BufferSize;
UEFI_VARIABLE_STRUCTURE EfiVarstore;
BufferSize = sizeof(UEFI_VARIABLE_STRUCTURE);
Status = gRT->GetVariable(
UEFIVariableName,
&mHiiVendorDevicePath.VendorDevicePath.Guid,
NULL,
&BufferSize,
&EfiVarstore);
if (!EFI_ERROR(Status)) {
Status = gRT->SetVariable(
UEFIVariableName,
&mHiiVendorDevicePath.VendorDevicePath.Guid,
0,
0,
NULL);
if (EFI_ERROR(Status)) {
Print(L"Error! Can't delete variable! %r\n", Status);
}
}
Status = gBS->UninstallMultipleProtocolInterfaces(
mDriverHandle,
&gEfiDevicePathProtocolGuid,
&mHiiVendorDevicePath,
NULL
);
return Status;
}
EFI_STATUS
EFIAPI
HIIFormDataElementsEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = gBS->InstallMultipleProtocolInterfaces(
&mDriverHandle,
&gEfiDevicePathProtocolGuid,
&mHiiVendorDevicePath,
NULL
);
if (EFI_ERROR (Status)) {
return Status;
}
UINTN BufferSize;
UEFI_VARIABLE_STRUCTURE EfiVarstore;
BufferSize = sizeof(UEFI_VARIABLE_STRUCTURE);
Status = gRT->GetVariable (
UEFIVariableName,
&mHiiVendorDevicePath.VendorDevicePath.Guid,
NULL,
&BufferSize,
&EfiVarstore);
if (EFI_ERROR(Status)) {
ZeroMem(&EfiVarstore, sizeof(EfiVarstore));
Status = gRT->SetVariable(
UEFIVariableName,
&mHiiVendorDevicePath.VendorDevicePath.Guid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof(EfiVarstore),
&EfiVarstore);
if (EFI_ERROR(Status)) {
Print(L"Error! Can't create variable! %r\n", Status);
}
}
mHiiHandle = HiiAddPackages(
&gEfiCallerIdGuid,
mDriverHandle,
HIIFormDataElementsStrings,
FormBin,
NULL
);
if (mHiiHandle == NULL) {
return EFI_OUT_OF_RESOURCES;
}
return EFI_SUCCESS;
}
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