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-rw-r--r--UefiLessonsPkg/HIIFormDataElementsWithKeywords/HIIFormDataElementsWithKeywords.c141
1 files changed, 141 insertions, 0 deletions
diff --git a/UefiLessonsPkg/HIIFormDataElementsWithKeywords/HIIFormDataElementsWithKeywords.c b/UefiLessonsPkg/HIIFormDataElementsWithKeywords/HIIFormDataElementsWithKeywords.c
new file mode 100644
index 0000000..23b1db3
--- /dev/null
+++ b/UefiLessonsPkg/HIIFormDataElementsWithKeywords/HIIFormDataElementsWithKeywords.c
@@ -0,0 +1,141 @@
+#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)
+ }
+ },
+ DATAPATH_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_GUID UEFIVariableGuid = STORAGE_GUID;
+
+
+EFI_STATUS
+EFIAPI
+HIIFormDataElementsWithKeywordsUnload (
+ 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,
+ &UEFIVariableGuid,
+ NULL,
+ &BufferSize,
+ &EfiVarstore);
+ if (!EFI_ERROR(Status)) {
+ Status = gRT->SetVariable(
+ UEFIVariableName,
+ &UEFIVariableGuid,
+ 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
+HIIFormDataElementsWithKeywordsEntryPoint (
+ 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,
+ &UEFIVariableGuid,
+ NULL,
+ &BufferSize,
+ &EfiVarstore);
+ if (EFI_ERROR(Status)) {
+ ZeroMem(&EfiVarstore, sizeof(EfiVarstore));
+ Status = gRT->SetVariable(
+ UEFIVariableName,
+ &UEFIVariableGuid,
+ 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,
+ HIIFormDataElementsWithKeywordsStrings,
+ FormBin,
+ NULL
+ );
+ if (mHiiHandle == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ return EFI_SUCCESS;
+}