From c28cd7e7867f856318c121a15f73f2b499dd2bb9 Mon Sep 17 00:00:00 2001
From: Konstantin Aladyshev <aladyshev22@gmail.com>
Date: Mon, 21 Mar 2022 17:18:32 +0300
Subject: Add lesson 66
Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
---
.../UefiLessonsPkg/HIIFormDataElements/Data.h | 16 +++
.../UefiLessonsPkg/HIIFormDataElements/Form.vfr | 34 +++++
.../HIIFormDataElements/HIIFormDataElements.c | 140 +++++++++++++++++++++
.../HIIFormDataElements/HIIFormDataElements.inf | 22 ++++
.../UefiLessonsPkg/HIIFormDataElements/Strings.uni | 17 +++
5 files changed, 229 insertions(+)
create mode 100644 Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Data.h
create mode 100644 Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Form.vfr
create mode 100644 Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/HIIFormDataElements.c
create mode 100644 Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/HIIFormDataElements.inf
create mode 100644 Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Strings.uni
(limited to 'Lessons/Lesson_66/UefiLessonsPkg')
diff --git a/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Data.h b/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Data.h
new file mode 100644
index 0000000..80bd3dc
--- /dev/null
+++ b/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Data.h
@@ -0,0 +1,16 @@
+#ifndef _DATA_H_
+#define _DATA_H_
+
+#define FORMSET_GUID {0x531bc507, 0x9191, 0x4fa2, {0x94, 0x46, 0xb8, 0x44, 0xe3, 0x5d, 0xd1, 0x2a}}
+
+#define UEFI_VARIABLE_STRUCTURE_NAME L"FormData"
+
+#pragma pack(1)
+typedef struct {
+ UINT8 CheckboxValue;
+ UINT16 NumericValue;
+ CHAR16 StringValue[11];
+} UEFI_VARIABLE_STRUCTURE;
+#pragma pack()
+
+#endif
diff --git a/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Form.vfr b/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Form.vfr
new file mode 100644
index 0000000..42affd4
--- /dev/null
+++ b/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Form.vfr
@@ -0,0 +1,34 @@
+#include <Uefi/UefiMultiPhase.h>
+#include "Data.h"
+
+formset
+ guid = FORMSET_GUID,
+ title = STRING_TOKEN(FORMSET_TITLE),
+ help = STRING_TOKEN(FORMSET_HELP),
+
+ efivarstore UEFI_VARIABLE_STRUCTURE,
+ attribute = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,
+ name = FormData,
+ guid = FORMSET_GUID;
+
+ form
+ formid = 1,
+ title = STRING_TOKEN(FORMID1_TITLE);
+
+ checkbox
+ varid = FormData.CheckboxValue,
+ prompt = STRING_TOKEN(CHECKBOX_PROMPT),
+ help = STRING_TOKEN(CHECKBOX_HELP),
+ endcheckbox;
+
+ numeric
+ varid = FormData.NumericValue,
+ prompt = STRING_TOKEN(NUMERIC_PROMPT),
+ help = STRING_TOKEN(NUMERIC_HELP),
+ flags = NUMERIC_SIZE_2 | DISPLAY_UINT_HEX,
+ minimum = 0x1234,
+ maximum = 0xaa55,
+ step = 2,
+ endnumeric;
+ endform;
+endformset;
diff --git a/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/HIIFormDataElements.c b/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/HIIFormDataElements.c
new file mode 100644
index 0000000..5920b58
--- /dev/null
+++ b/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/HIIFormDataElements.c
@@ -0,0 +1,140 @@
+#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;
+}
diff --git a/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/HIIFormDataElements.inf b/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/HIIFormDataElements.inf
new file mode 100644
index 0000000..b9c0652
--- /dev/null
+++ b/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/HIIFormDataElements.inf
@@ -0,0 +1,22 @@
+[Defines]
+ INF_VERSION = 1.25
+ BASE_NAME = HIIFormDataElements
+ FILE_GUID = ab971f73-f582-4f90-a48d-88ff7c884bd9
+ MODULE_TYPE = UEFI_DRIVER
+ VERSION_STRING = 1.0
+ ENTRY_POINT = HIIFormDataElementsEntryPoint
+ UNLOAD_IMAGE = HIIFormDataElementsUnload
+
+[Sources]
+ HIIFormDataElements.c
+ Strings.uni
+ Form.vfr
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+ UefiDriverEntryPoint
+ UefiLib
+ HiiLib
diff --git a/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Strings.uni b/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Strings.uni
new file mode 100644
index 0000000..4e283e1
--- /dev/null
+++ b/Lessons/Lesson_66/UefiLessonsPkg/HIIFormDataElements/Strings.uni
@@ -0,0 +1,17 @@
+//
+// Copyright (c) 2021, Konstantin Aladyshev <aladyshev22@gmail.com>
+//
+// SPDX-License-Identifier: MIT
+//
+
+#langdef en-US "English"
+
+#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"
+#string CHECKBOX_HELP #language en-US "Checkbox help"
+#string NUMERIC_PROMPT #language en-US "Numeric prompt"
+#string NUMERIC_HELP #language en-US "Numeric help"
+#string STRING_PROMPT #language en-US "String prompt"
+#string STRING_HELP #language en-US "String help"
--
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