Add HIIFormDataElementsVarstore driver

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>

12 files changed, 841 insertions, 0 deletions

diff --git a/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/Data.h b/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/Data.h
new file mode 100644
index 0000000..62ccc20
--- /dev/null
+++ b/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/Data.h
@@ -0,0 +1,20 @@
+#ifndef _DATA_H_
+#define _DATA_H_
+
+#define FORMSET_GUID  {0xf8f0d09a, 0xbc44, 0x4490, {0xb1, 0x7a, 0xdd, 0xf0, 0xe5, 0xdc, 0x41, 0x7f}} 
+#define DATAPATH_GUID {0xfb821964, 0xacb4, 0x437b, {0x9f, 0xe6, 0x66, 0xaa, 0x7a, 0xd7, 0xc5, 0xd8}}
+#define STORAGE_GUID  {0x37807592, 0x733a, 0x4f1b, {0x95, 0x57, 0xf2, 0x2a, 0xf7, 0x43, 0xe8, 0xc2}}
+
+#pragma pack(1)
+typedef struct {
+  UINT8 CheckboxValue;
+  UINT16 NumericValue;
+  CHAR16 StringValue[11];
+  EFI_HII_DATE DateValue;
+  EFI_HII_TIME TimeValue;
+  UINT8 OneOfValue;
+  UINT8 OrderedListValue[3];
+} VARIABLE_STRUCTURE;
+#pragma pack()
+
+#endif
diff --git a/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/Form.vfr b/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/Form.vfr
new file mode 100644
index 0000000..3f5142a
--- /dev/null
+++ b/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/Form.vfr
@@ -0,0 +1,105 @@
+#include <Uefi/UefiMultiPhase.h>
+#include "Data.h"
+
+formset
+  guid     = FORMSET_GUID,
+  title    = STRING_TOKEN(FORMSET_TITLE),
+  help     = STRING_TOKEN(FORMSET_HELP),
+
+  varstore VARIABLE_STRUCTURE,
+    name  = FormData,
+    guid  = STORAGE_GUID;
+
+  defaultstore StandardDefault,
+    prompt      = STRING_TOKEN(STANDARD_DEFAULT_PROMPT),
+    attribute   = 0x0000;
+
+  defaultstore ManufactureDefault,
+    prompt      = STRING_TOKEN(MFG_DEFAULT_PROMPT),
+    attribute   = 0x0001;
+
+  form
+    formid = 1,
+    title = STRING_TOKEN(FORMID1_TITLE);
+
+    checkbox
+      varid = FormData.CheckboxValue,
+      prompt = STRING_TOKEN(CHECKBOX_PROMPT),
+      help = STRING_TOKEN(CHECKBOX_HELP),
+      default = TRUE, defaultstore = StandardDefault,
+      default = FALSE, defaultstore = ManufactureDefault,
+    endcheckbox;
+
+    numeric
+      name = NumericQuestion,
+      varid = FormData.NumericValue,
+      prompt = STRING_TOKEN(NUMERIC_PROMPT),
+      help = STRING_TOKEN(NUMERIC_HELP),
+      flags = NUMERIC_SIZE_2 | DISPLAY_UINT_HEX,
+      //minimum = 0x1234,
+      //maximum = 0xaa55,
+      minimum = 0,
+      maximum = 10,
+      step = 1,
+      default = 7, defaultstore = StandardDefault,
+      default = 8, defaultstore = ManufactureDefault,
+    endnumeric;
+
+    string
+      name = StringQuestion,
+      varid = FormData.StringValue,
+      prompt = STRING_TOKEN(STRING_PROMPT),
+      help = STRING_TOKEN(STRING_HELP),
+      minsize = 5,
+      maxsize = 10,
+      default = STRING_TOKEN(STRING_DEFAULT), defaultstore = StandardDefault,
+      default = STRING_TOKEN(STRING_PROMPT), defaultstore = ManufactureDefault,
+    endstring;
+
+    date
+      varid = FormData.DateValue,
+      prompt = STRING_TOKEN(DATE_PROMPT),
+      help = STRING_TOKEN(DATE_HELP),
+      default = 2021/05/22,
+    enddate;
+
+    time
+      varid = FormData.TimeValue,
+      prompt = STRING_TOKEN(TIME_PROMPT),
+      help = STRING_TOKEN(TIME_HELP),
+      default = 23:55:33,
+    endtime;
+
+    oneof
+      name = OneOfQuestion,
+      varid = FormData.OneOfValue,
+      prompt = STRING_TOKEN(ONEOF_PROMPT),
+      help = STRING_TOKEN(ONEOF_HELP),
+      option text = STRING_TOKEN(ONEOF_OPTION1), value = 0x00, flags = 0;
+      option text = STRING_TOKEN(ONEOF_OPTION2), value = 0x33, flags = MANUFACTURING;
+      option text = STRING_TOKEN(ONEOF_OPTION3), value = 0x55, flags = DEFAULT;
+    endoneof;
+
+    orderedlist
+      varid = FormData.OrderedListValue,
+      prompt = STRING_TOKEN(ORDERED_LIST_PROMPT),
+      help = STRING_TOKEN(ORDERED_LIST_HELP),
+      option text = STRING_TOKEN(ORDERED_LIST_OPTION1), value = 0x0A, flags = 0;
+      option text = STRING_TOKEN(ORDERED_LIST_OPTION2), value = 0x0B, flags = 0;
+      option text = STRING_TOKEN(ORDERED_LIST_OPTION3), value = 0x0C, flags = 0;
+      default = {0x0c, 0x0b, 0x0a},
+    endlist;
+
+    resetbutton
+      defaultstore = StandardDefault,
+      prompt   = STRING_TOKEN(BTN_STANDARD_DEFAULT_PROMPT),
+      help     = STRING_TOKEN(BTN_STANDARD_DEFAULT_HELP),
+    endresetbutton;
+
+    resetbutton
+      defaultstore = ManufactureDefault,
+      prompt   = STRING_TOKEN(BTN_MFG_DEFAULT_PROMPT),
+      help     = STRING_TOKEN(BTN_MFG_DEFAULT_HELP),
+    endresetbutton;
+  endform;
+endformset;
diff --git a/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.c b/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.c
new file mode 100644
index 0000000..27c7b1a
--- /dev/null
+++ b/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.c
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2022, 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 <Library/UefiHiiServicesLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PrintLib.h>
+#include <Protocol/HiiConfigAccess.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_HII_CONFIG_ACCESS_PROTOCOL mConfigAccess;
+EFI_GUID StorageGuid = STORAGE_GUID;
+EFI_STRING StorageName = L"FormData";
+
+VARIABLE_STRUCTURE FormStorage;
+
+
+STATIC
+EFI_STATUS
+EFIAPI
+ExtractConfig (
+  IN CONST  EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
+  IN CONST  EFI_STRING                      Request,
+  OUT       EFI_STRING                      *Progress,
+  OUT       EFI_STRING                      *Results
+)
+{
+  BOOLEAN AllocatedRequest = FALSE;
+
+  if (Progress == NULL || Results == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  if ((Request != NULL) && !HiiIsConfigHdrMatch(Request, &StorageGuid, StorageName)) {
+    return EFI_NOT_FOUND;
+  }
+
+  EFI_STRING ConfigRequest = Request;
+  if ((Request == NULL) || (StrStr (Request, L"OFFSET") == NULL)) {
+    EFI_STRING ConfigRequestHdr = HiiConstructConfigHdr(&StorageGuid, StorageName, mDriverHandle);
+    UINTN Size = (StrLen(ConfigRequestHdr) + StrLen(L"&OFFSET=0&WIDTH=") + sizeof(UINTN)*2 + 1) * sizeof(CHAR16);
+    ConfigRequest = AllocateZeroPool(Size);
+    AllocatedRequest = TRUE;
+    UnicodeSPrint(ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, sizeof(VARIABLE_STRUCTURE));
+    FreePool(ConfigRequestHdr);
+  }
+  EFI_STATUS Status = gHiiConfigRouting->BlockToConfig(gHiiConfigRouting,
+                                                       ConfigRequest,
+                                                       (UINT8*)&FormStorage,
+                                                       sizeof(VARIABLE_STRUCTURE),
+                                                       Results,
+                                                       Progress);
+
+  if (AllocatedRequest) {
+    FreePool(ConfigRequest);
+    if (Request == NULL) {
+      *Progress = NULL;
+    } else if (StrStr(Request, L"OFFSET") == NULL) {
+      *Progress = Request + StrLen(Request);
+    }
+  }
+
+  return Status;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+RouteConfig (
+  IN CONST  EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
+  IN CONST  EFI_STRING                      Configuration,
+  OUT       EFI_STRING                      *Progress
+)
+{
+  if (Configuration == NULL || Progress == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  UINTN BlockSize = sizeof(VARIABLE_STRUCTURE);
+  EFI_STATUS Status = gHiiConfigRouting->ConfigToBlock(gHiiConfigRouting,
+                                                       Configuration,
+                                                       (UINT8*)&FormStorage,
+                                                       &BlockSize,
+                                                       Progress);
+
+  return Status;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+Callback (
+  IN     CONST EFI_HII_CONFIG_ACCESS_PROTOCOL   *This,
+  IN     EFI_BROWSER_ACTION                     Action,
+  IN     EFI_QUESTION_ID                        QuestionId,
+  IN     UINT8                                  Type,
+  IN OUT EFI_IFR_TYPE_VALUE                     *Value,
+  OUT    EFI_BROWSER_ACTION_REQUEST             *ActionRequest
+  )
+{
+  return EFI_UNSUPPORTED;
+}
+
+
+EFI_STATUS
+EFIAPI
+HIIFormDataElementsVarstoreUnload (
+  EFI_HANDLE ImageHandle
+  )
+{
+  if (mHiiHandle != NULL)
+    HiiRemovePackages(mHiiHandle);
+
+  EFI_STATUS Status = gBS->UninstallMultipleProtocolInterfaces(
+                             mDriverHandle,
+                             &gEfiDevicePathProtocolGuid,
+                             &mHiiVendorDevicePath,
+                             &gEfiHiiConfigAccessProtocolGuid,
+                             &mConfigAccess,
+                             NULL);
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+HIIFormDataElementsVarstoreEntryPoint (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  mConfigAccess.ExtractConfig = &ExtractConfig;
+  mConfigAccess.RouteConfig   = &RouteConfig;
+  mConfigAccess.Callback      = &Callback;
+
+  EFI_STATUS Status;
+  Status = gBS->InstallMultipleProtocolInterfaces(
+                  &mDriverHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  &mHiiVendorDevicePath,
+                  &gEfiHiiConfigAccessProtocolGuid,
+                  &mConfigAccess,
+                  NULL
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  mHiiHandle = HiiAddPackages(
+                 &gEfiCallerIdGuid,
+                 mDriverHandle,
+                 HIIFormDataElementsVarstoreStrings,
+                 FormBin,
+                 NULL
+                 );
+  if (mHiiHandle == NULL) {
+    gBS->UninstallMultipleProtocolInterfaces(
+           mDriverHandle,
+           &gEfiDevicePathProtocolGuid,
+           &mHiiVendorDevicePath,
+           &gEfiHiiConfigAccessProtocolGuid,
+           &mConfigAccess,
+           NULL);
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  EFI_STRING ConfigStr = HiiConstructConfigHdr(&StorageGuid, StorageName, mDriverHandle);
+  UINT16 DefaultId = 1;
+  if (!HiiSetToDefaults(ConfigStr, DefaultId)) {
+    Print(L"Error! Can't set default configuration #%d\n", DefaultId);
+  }
+
+  return EFI_SUCCESS;
+}
diff --git a/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.inf b/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.inf
new file mode 100644
index 0000000..0ae8ee4
--- /dev/null
+++ b/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.inf
@@ -0,0 +1,33 @@
+##
+# Copyright (c) 2022, Konstantin Aladyshev <aladyshev22@gmail.com>
+#
+# SPDX-License-Identifier: MIT
+##
+
+[Defines]
+  INF_VERSION                    = 1.25
+  BASE_NAME                      = HIIFormDataElementsVarstore
+  FILE_GUID                      = 162201c9-1208-4567-bab6-e9d32ae90e84
+  MODULE_TYPE                    = UEFI_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = HIIFormDataElementsVarstoreEntryPoint
+  UNLOAD_IMAGE                   = HIIFormDataElementsVarstoreUnload
+
+[Sources]
+  HIIFormDataElementsVarstore.c
+  Strings.uni
+  Form.vfr
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  UefiDriverEntryPoint
+  UefiLib
+  HiiLib
+  UefiHiiServicesLib
+
+[Protocols]
+  gEfiHiiConfigAccessProtocolGuid
+
diff --git a/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/Strings.uni b/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/Strings.uni
new file mode 100644
index 0000000..10a410e
--- /dev/null
+++ b/Lessons_uncategorized/Lesson_Varstore_4/UefiLessonsPkg/HIIFormDataElementsVarstore/Strings.uni
@@ -0,0 +1,46 @@
+//
+// Copyright (c) 2021, Konstantin Aladyshev <aladyshev22@gmail.com>
+//
+// SPDX-License-Identifier: MIT
+//
+
+#langdef en-US "English"
+#langdef x-UEFI-OEM "OEM_NameSpace"
+
+#string FORMSET_TITLE          #language en-US  "Simple Formset"
+#string FORMSET_HELP           #language en-US  "This is a very simple formset"
+#string FORMID1_TITLE          #language en-US  "Simple Form"
+#string CHECKBOX_PROMPT        #language en-US  "Checkbox prompt"
+                               #language x-UEFI-OEM  "CheckboxKey"
+#string CHECKBOX_HELP          #language en-US  "Checkbox help"
+#string NUMERIC_PROMPT         #language en-US  "Numeric prompt"
+                               #language x-UEFI-OEM  "NumericKey"
+#string NUMERIC_HELP           #language en-US  "Numeric help"
+#string STRING_PROMPT          #language en-US  "String prompt"
+                               #language x-UEFI-OEM  "StringKey"
+#string STRING_HELP            #language en-US  "String help"
+#string DATE_PROMPT            #language en-US  "Date prompt"
+#string DATE_HELP              #language en-US  "Date help"
+#string TIME_PROMPT            #language en-US  "Time prompt"
+#string TIME_HELP              #language en-US  "Time help"
+#string ONEOF_PROMPT           #language en-US  "OneOf list prompt"
+#string ONEOF_HELP             #language en-US  "OneOf list help"
+#string ONEOF_OPTION1          #language en-US  "OneOf list option 1"
+#string ONEOF_OPTION2          #language en-US  "OneOf list option 2"
+#string ONEOF_OPTION3          #language en-US  "OneOf list option 3"
+#string ORDERED_LIST_PROMPT    #language en-US  "Ordered list prompt"
+#string ORDERED_LIST_HELP      #language en-US  "Ordered list help"
+#string ORDERED_LIST_OPTION1   #language en-US  "Ordered list option 1"
+#string ORDERED_LIST_OPTION2   #language en-US  "Ordered list option 2"
+#string ORDERED_LIST_OPTION3   #language en-US  "Ordered list option 3"
+#string WARNING_IF_PROMPT      #language en-US  "WarningIf prompt"
+#string NOSUBMIT_IF_PROMPT     #language en-US  "NoSubmitIf prompt"
+#string INCONSISTENT_IF_PROMPT #language en-US  "InconsistentIf prompt"
+#string TEST_STRING            #language en-US  "EDKII"
+#string STRING_DEFAULT         #language en-US  "String default"
+#string STANDARD_DEFAULT_PROMPT     #language en-US "Standard default"
+#string MFG_DEFAULT_PROMPT          #language en-US "Manufacture default"
+#string BTN_STANDARD_DEFAULT_PROMPT #language en-US "Reset to standard default prompt"
+#string BTN_STANDARD_DEFAULT_HELP   #language en-US "Reset to standard default help"
+#string BTN_MFG_DEFAULT_PROMPT      #language en-US "Reset to manufacture default prompt"
+#string BTN_MFG_DEFAULT_HELP        #language en-US "Reset to manufacture default help"
diff --git a/UefiLessonsPkg/HIIFormDataElementsVarstore/Data.h b/UefiLessonsPkg/HIIFormDataElementsVarstore/Data.h
new file mode 100644
index 0000000..62ccc20
--- /dev/null
+++ b/UefiLessonsPkg/HIIFormDataElementsVarstore/Data.h
@@ -0,0 +1,20 @@
+#ifndef _DATA_H_
+#define _DATA_H_
+
+#define FORMSET_GUID  {0xf8f0d09a, 0xbc44, 0x4490, {0xb1, 0x7a, 0xdd, 0xf0, 0xe5, 0xdc, 0x41, 0x7f}} 
+#define DATAPATH_GUID {0xfb821964, 0xacb4, 0x437b, {0x9f, 0xe6, 0x66, 0xaa, 0x7a, 0xd7, 0xc5, 0xd8}}
+#define STORAGE_GUID  {0x37807592, 0x733a, 0x4f1b, {0x95, 0x57, 0xf2, 0x2a, 0xf7, 0x43, 0xe8, 0xc2}}
+
+#pragma pack(1)
+typedef struct {
+  UINT8 CheckboxValue;
+  UINT16 NumericValue;
+  CHAR16 StringValue[11];
+  EFI_HII_DATE DateValue;
+  EFI_HII_TIME TimeValue;
+  UINT8 OneOfValue;
+  UINT8 OrderedListValue[3];
+} VARIABLE_STRUCTURE;
+#pragma pack()
+
+#endif
diff --git a/UefiLessonsPkg/HIIFormDataElementsVarstore/Form.vfr b/UefiLessonsPkg/HIIFormDataElementsVarstore/Form.vfr
new file mode 100644
index 0000000..3f5142a
--- /dev/null
+++ b/UefiLessonsPkg/HIIFormDataElementsVarstore/Form.vfr
@@ -0,0 +1,105 @@
+#include <Uefi/UefiMultiPhase.h>
+#include "Data.h"
+
+formset
+  guid     = FORMSET_GUID,
+  title    = STRING_TOKEN(FORMSET_TITLE),
+  help     = STRING_TOKEN(FORMSET_HELP),
+
+  varstore VARIABLE_STRUCTURE,
+    name  = FormData,
+    guid  = STORAGE_GUID;
+
+  defaultstore StandardDefault,
+    prompt      = STRING_TOKEN(STANDARD_DEFAULT_PROMPT),
+    attribute   = 0x0000;
+
+  defaultstore ManufactureDefault,
+    prompt      = STRING_TOKEN(MFG_DEFAULT_PROMPT),
+    attribute   = 0x0001;
+
+  form
+    formid = 1,
+    title = STRING_TOKEN(FORMID1_TITLE);
+
+    checkbox
+      varid = FormData.CheckboxValue,
+      prompt = STRING_TOKEN(CHECKBOX_PROMPT),
+      help = STRING_TOKEN(CHECKBOX_HELP),
+      default = TRUE, defaultstore = StandardDefault,
+      default = FALSE, defaultstore = ManufactureDefault,
+    endcheckbox;
+
+    numeric
+      name = NumericQuestion,
+      varid = FormData.NumericValue,
+      prompt = STRING_TOKEN(NUMERIC_PROMPT),
+      help = STRING_TOKEN(NUMERIC_HELP),
+      flags = NUMERIC_SIZE_2 | DISPLAY_UINT_HEX,
+      //minimum = 0x1234,
+      //maximum = 0xaa55,
+      minimum = 0,
+      maximum = 10,
+      step = 1,
+      default = 7, defaultstore = StandardDefault,
+      default = 8, defaultstore = ManufactureDefault,
+    endnumeric;
+
+    string
+      name = StringQuestion,
+      varid = FormData.StringValue,
+      prompt = STRING_TOKEN(STRING_PROMPT),
+      help = STRING_TOKEN(STRING_HELP),
+      minsize = 5,
+      maxsize = 10,
+      default = STRING_TOKEN(STRING_DEFAULT), defaultstore = StandardDefault,
+      default = STRING_TOKEN(STRING_PROMPT), defaultstore = ManufactureDefault,
+    endstring;
+
+    date
+      varid = FormData.DateValue,
+      prompt = STRING_TOKEN(DATE_PROMPT),
+      help = STRING_TOKEN(DATE_HELP),
+      default = 2021/05/22,
+    enddate;
+
+    time
+      varid = FormData.TimeValue,
+      prompt = STRING_TOKEN(TIME_PROMPT),
+      help = STRING_TOKEN(TIME_HELP),
+      default = 23:55:33,
+    endtime;
+
+    oneof
+      name = OneOfQuestion,
+      varid = FormData.OneOfValue,
+      prompt = STRING_TOKEN(ONEOF_PROMPT),
+      help = STRING_TOKEN(ONEOF_HELP),
+      option text = STRING_TOKEN(ONEOF_OPTION1), value = 0x00, flags = 0;
+      option text = STRING_TOKEN(ONEOF_OPTION2), value = 0x33, flags = MANUFACTURING;
+      option text = STRING_TOKEN(ONEOF_OPTION3), value = 0x55, flags = DEFAULT;
+    endoneof;
+
+    orderedlist
+      varid = FormData.OrderedListValue,
+      prompt = STRING_TOKEN(ORDERED_LIST_PROMPT),
+      help = STRING_TOKEN(ORDERED_LIST_HELP),
+      option text = STRING_TOKEN(ORDERED_LIST_OPTION1), value = 0x0A, flags = 0;
+      option text = STRING_TOKEN(ORDERED_LIST_OPTION2), value = 0x0B, flags = 0;
+      option text = STRING_TOKEN(ORDERED_LIST_OPTION3), value = 0x0C, flags = 0;
+      default = {0x0c, 0x0b, 0x0a},
+    endlist;
+
+    resetbutton
+      defaultstore = StandardDefault,
+      prompt   = STRING_TOKEN(BTN_STANDARD_DEFAULT_PROMPT),
+      help     = STRING_TOKEN(BTN_STANDARD_DEFAULT_HELP),
+    endresetbutton;
+
+    resetbutton
+      defaultstore = ManufactureDefault,
+      prompt   = STRING_TOKEN(BTN_MFG_DEFAULT_PROMPT),
+      help     = STRING_TOKEN(BTN_MFG_DEFAULT_HELP),
+    endresetbutton;
+  endform;
+endformset;
diff --git a/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.c b/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.c
new file mode 100644
index 0000000..27c7b1a
--- /dev/null
+++ b/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.c
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2022, 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 <Library/UefiHiiServicesLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PrintLib.h>
+#include <Protocol/HiiConfigAccess.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_HII_CONFIG_ACCESS_PROTOCOL mConfigAccess;
+EFI_GUID StorageGuid = STORAGE_GUID;
+EFI_STRING StorageName = L"FormData";
+
+VARIABLE_STRUCTURE FormStorage;
+
+
+STATIC
+EFI_STATUS
+EFIAPI
+ExtractConfig (
+  IN CONST  EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
+  IN CONST  EFI_STRING                      Request,
+  OUT       EFI_STRING                      *Progress,
+  OUT       EFI_STRING                      *Results
+)
+{
+  BOOLEAN AllocatedRequest = FALSE;
+
+  if (Progress == NULL || Results == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  if ((Request != NULL) && !HiiIsConfigHdrMatch(Request, &StorageGuid, StorageName)) {
+    return EFI_NOT_FOUND;
+  }
+
+  EFI_STRING ConfigRequest = Request;
+  if ((Request == NULL) || (StrStr (Request, L"OFFSET") == NULL)) {
+    EFI_STRING ConfigRequestHdr = HiiConstructConfigHdr(&StorageGuid, StorageName, mDriverHandle);
+    UINTN Size = (StrLen(ConfigRequestHdr) + StrLen(L"&OFFSET=0&WIDTH=") + sizeof(UINTN)*2 + 1) * sizeof(CHAR16);
+    ConfigRequest = AllocateZeroPool(Size);
+    AllocatedRequest = TRUE;
+    UnicodeSPrint(ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, sizeof(VARIABLE_STRUCTURE));
+    FreePool(ConfigRequestHdr);
+  }
+  EFI_STATUS Status = gHiiConfigRouting->BlockToConfig(gHiiConfigRouting,
+                                                       ConfigRequest,
+                                                       (UINT8*)&FormStorage,
+                                                       sizeof(VARIABLE_STRUCTURE),
+                                                       Results,
+                                                       Progress);
+
+  if (AllocatedRequest) {
+    FreePool(ConfigRequest);
+    if (Request == NULL) {
+      *Progress = NULL;
+    } else if (StrStr(Request, L"OFFSET") == NULL) {
+      *Progress = Request + StrLen(Request);
+    }
+  }
+
+  return Status;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+RouteConfig (
+  IN CONST  EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
+  IN CONST  EFI_STRING                      Configuration,
+  OUT       EFI_STRING                      *Progress
+)
+{
+  if (Configuration == NULL || Progress == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  UINTN BlockSize = sizeof(VARIABLE_STRUCTURE);
+  EFI_STATUS Status = gHiiConfigRouting->ConfigToBlock(gHiiConfigRouting,
+                                                       Configuration,
+                                                       (UINT8*)&FormStorage,
+                                                       &BlockSize,
+                                                       Progress);
+
+  return Status;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+Callback (
+  IN     CONST EFI_HII_CONFIG_ACCESS_PROTOCOL   *This,
+  IN     EFI_BROWSER_ACTION                     Action,
+  IN     EFI_QUESTION_ID                        QuestionId,
+  IN     UINT8                                  Type,
+  IN OUT EFI_IFR_TYPE_VALUE                     *Value,
+  OUT    EFI_BROWSER_ACTION_REQUEST             *ActionRequest
+  )
+{
+  return EFI_UNSUPPORTED;
+}
+
+
+EFI_STATUS
+EFIAPI
+HIIFormDataElementsVarstoreUnload (
+  EFI_HANDLE ImageHandle
+  )
+{
+  if (mHiiHandle != NULL)
+    HiiRemovePackages(mHiiHandle);
+
+  EFI_STATUS Status = gBS->UninstallMultipleProtocolInterfaces(
+                             mDriverHandle,
+                             &gEfiDevicePathProtocolGuid,
+                             &mHiiVendorDevicePath,
+                             &gEfiHiiConfigAccessProtocolGuid,
+                             &mConfigAccess,
+                             NULL);
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+HIIFormDataElementsVarstoreEntryPoint (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  mConfigAccess.ExtractConfig = &ExtractConfig;
+  mConfigAccess.RouteConfig   = &RouteConfig;
+  mConfigAccess.Callback      = &Callback;
+
+  EFI_STATUS Status;
+  Status = gBS->InstallMultipleProtocolInterfaces(
+                  &mDriverHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  &mHiiVendorDevicePath,
+                  &gEfiHiiConfigAccessProtocolGuid,
+                  &mConfigAccess,
+                  NULL
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  mHiiHandle = HiiAddPackages(
+                 &gEfiCallerIdGuid,
+                 mDriverHandle,
+                 HIIFormDataElementsVarstoreStrings,
+                 FormBin,
+                 NULL
+                 );
+  if (mHiiHandle == NULL) {
+    gBS->UninstallMultipleProtocolInterfaces(
+           mDriverHandle,
+           &gEfiDevicePathProtocolGuid,
+           &mHiiVendorDevicePath,
+           &gEfiHiiConfigAccessProtocolGuid,
+           &mConfigAccess,
+           NULL);
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  EFI_STRING ConfigStr = HiiConstructConfigHdr(&StorageGuid, StorageName, mDriverHandle);
+  UINT16 DefaultId = 1;
+  if (!HiiSetToDefaults(ConfigStr, DefaultId)) {
+    Print(L"Error! Can't set default configuration #%d\n", DefaultId);
+  }
+
+  return EFI_SUCCESS;
+}
diff --git a/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.inf b/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.inf
new file mode 100644
index 0000000..0ae8ee4
--- /dev/null
+++ b/UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.inf
@@ -0,0 +1,33 @@
+##
+# Copyright (c) 2022, Konstantin Aladyshev <aladyshev22@gmail.com>
+#
+# SPDX-License-Identifier: MIT
+##
+
+[Defines]
+  INF_VERSION                    = 1.25
+  BASE_NAME                      = HIIFormDataElementsVarstore
+  FILE_GUID                      = 162201c9-1208-4567-bab6-e9d32ae90e84
+  MODULE_TYPE                    = UEFI_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = HIIFormDataElementsVarstoreEntryPoint
+  UNLOAD_IMAGE                   = HIIFormDataElementsVarstoreUnload
+
+[Sources]
+  HIIFormDataElementsVarstore.c
+  Strings.uni
+  Form.vfr
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  UefiDriverEntryPoint
+  UefiLib
+  HiiLib
+  UefiHiiServicesLib
+
+[Protocols]
+  gEfiHiiConfigAccessProtocolGuid
+
diff --git a/UefiLessonsPkg/HIIFormDataElementsVarstore/Strings.uni b/UefiLessonsPkg/HIIFormDataElementsVarstore/Strings.uni
new file mode 100644
index 0000000..10a410e
--- /dev/null
+++ b/UefiLessonsPkg/HIIFormDataElementsVarstore/Strings.uni
@@ -0,0 +1,46 @@
+//
+// Copyright (c) 2021, Konstantin Aladyshev <aladyshev22@gmail.com>
+//
+// SPDX-License-Identifier: MIT
+//
+
+#langdef en-US "English"
+#langdef x-UEFI-OEM "OEM_NameSpace"
+
+#string FORMSET_TITLE          #language en-US  "Simple Formset"
+#string FORMSET_HELP           #language en-US  "This is a very simple formset"
+#string FORMID1_TITLE          #language en-US  "Simple Form"
+#string CHECKBOX_PROMPT        #language en-US  "Checkbox prompt"
+                               #language x-UEFI-OEM  "CheckboxKey"
+#string CHECKBOX_HELP          #language en-US  "Checkbox help"
+#string NUMERIC_PROMPT         #language en-US  "Numeric prompt"
+                               #language x-UEFI-OEM  "NumericKey"
+#string NUMERIC_HELP           #language en-US  "Numeric help"
+#string STRING_PROMPT          #language en-US  "String prompt"
+                               #language x-UEFI-OEM  "StringKey"
+#string STRING_HELP            #language en-US  "String help"
+#string DATE_PROMPT            #language en-US  "Date prompt"
+#string DATE_HELP              #language en-US  "Date help"
+#string TIME_PROMPT            #language en-US  "Time prompt"
+#string TIME_HELP              #language en-US  "Time help"
+#string ONEOF_PROMPT           #language en-US  "OneOf list prompt"
+#string ONEOF_HELP             #language en-US  "OneOf list help"
+#string ONEOF_OPTION1          #language en-US  "OneOf list option 1"
+#string ONEOF_OPTION2          #language en-US  "OneOf list option 2"
+#string ONEOF_OPTION3          #language en-US  "OneOf list option 3"
+#string ORDERED_LIST_PROMPT    #language en-US  "Ordered list prompt"
+#string ORDERED_LIST_HELP      #language en-US  "Ordered list help"
+#string ORDERED_LIST_OPTION1   #language en-US  "Ordered list option 1"
+#string ORDERED_LIST_OPTION2   #language en-US  "Ordered list option 2"
+#string ORDERED_LIST_OPTION3   #language en-US  "Ordered list option 3"
+#string WARNING_IF_PROMPT      #language en-US  "WarningIf prompt"
+#string NOSUBMIT_IF_PROMPT     #language en-US  "NoSubmitIf prompt"
+#string INCONSISTENT_IF_PROMPT #language en-US  "InconsistentIf prompt"
+#string TEST_STRING            #language en-US  "EDKII"
+#string STRING_DEFAULT         #language en-US  "String default"
+#string STANDARD_DEFAULT_PROMPT     #language en-US "Standard default"
+#string MFG_DEFAULT_PROMPT          #language en-US "Manufacture default"
+#string BTN_STANDARD_DEFAULT_PROMPT #language en-US "Reset to standard default prompt"
+#string BTN_STANDARD_DEFAULT_HELP   #language en-US "Reset to standard default help"
+#string BTN_MFG_DEFAULT_PROMPT      #language en-US "Reset to manufacture default prompt"
+#string BTN_MFG_DEFAULT_HELP        #language en-US "Reset to manufacture default help"
diff --git a/UefiLessonsPkg/UefiLessonsPkg.dsc b/UefiLessonsPkg/UefiLessonsPkg.dsc
index 4b9b2ad..f26a969 100644
--- a/UefiLessonsPkg/UefiLessonsPkg.dsc
+++ b/UefiLessonsPkg/UefiLessonsPkg.dsc
@@ -86,6 +86,7 @@
   UefiLessonsPkg/HIIKeyword/HIIKeyword.inf
   UefiLessonsPkg/HIIFormDataElementsWithKeywords/HIIFormDataElementsWithKeywords.inf
   UefiLessonsPkg/HIIFormDataElementsWithDefaultsSet/HIIFormDataElementsWithDefaultsSet.inf
+  UefiLessonsPkg/HIIFormDataElementsVarstore/HIIFormDataElementsVarstore.inf
   UefiLessonsPkg/FfsFile/FfsFile.inf
   UefiLessonsPkg/SetSku/SetSku.inf
 
diff --git a/bin/HIIFormDataElementsVarstore.efi b/bin/HIIFormDataElementsVarstore.efi
new file mode 100644
index 0000000..19324b5
--- /dev/null
+++ b/bin/HIIFormDataElementsVarstore.efi