1 files changed, 84 insertions, 0 deletions
diff --git a/Lessons/Lesson_38/UefiLessonsPkg/SimpleClassProtocol/SimpleClassProtocol.c b/Lessons/Lesson_38/UefiLessonsPkg/SimpleClassProtocol/SimpleClassProtocol.c
new file mode 100644
index 0000000..8bd7f87
--- /dev/null
+++ b/Lessons/Lesson_38/UefiLessonsPkg/SimpleClassProtocol/SimpleClassProtocol.c
@@ -0,0 +1,84 @@
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+
+#include <Protocol/SimpleClass.h>
+
+
+EFI_HANDLE  mSimpleClassHandle = NULL;
+
+UINTN mNumber = 0;
+
+EFI_STATUS
+EFIAPI
+SimpleClassProtocolSetNumber (
+  UINTN Number
+  )
+{
+  mNumber = Number;
+
+  return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+EFIAPI
+SimpleClassProtocolGetNumber (
+  UINTN* Number
+  )
+{
+  if (Number == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *Number = mNumber;
+
+  return EFI_SUCCESS;
+}
+
+
+SIMPLE_CLASS_PROTOCOL  mSimpleClass = {
+  SimpleClassProtocolGetNumber,
+  SimpleClassProtocolSetNumber
+};
+
+
+EFI_STATUS
+EFIAPI
+SimpleClassProtocolDriverUnload (
+  IN EFI_HANDLE        ImageHandle
+  )
+{
+  Print(L"Bye-bye from SimpleClassProtocol driver, handle=%p\n", mSimpleClassHandle);
+
+  EFI_STATUS Status = gBS->UninstallMultipleProtocolInterfaces(
+                             mSimpleClassHandle,
+                             &gSimpleClassProtocolGuid,
+                             &mSimpleClass,
+                             NULL
+                             );
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+SimpleClassProtocolDriverEntryPoint (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  Print(L"Hello from SimpleClassProtocol driver");
+
+  EFI_STATUS Status = gBS->InstallMultipleProtocolInterfaces(
+                             &mSimpleClassHandle,
+                             &gSimpleClassProtocolGuid,
+                             &mSimpleClass,
+                             NULL
+                             );
+  if (!EFI_ERROR(Status))
+    Print(L", handle=%p\n", mSimpleClassHandle);
+  else
+    Print(L"\n", mSimpleClassHandle);
+
+  return Status;
+}