2 files changed, 45 insertions, 5 deletions

diff --git a/Lesson_28/UefiLessonsPkg/AcpiInfo/AcpiInfo.c b/Lesson_28/UefiLessonsPkg/AcpiInfo/AcpiInfo.c
index 88c78b6..0511f59 100644
--- a/Lesson_28/UefiLessonsPkg/AcpiInfo/AcpiInfo.c
+++ b/Lesson_28/UefiLessonsPkg/AcpiInfo/AcpiInfo.c
@@ -2,6 +2,7 @@
 #include <Library/UefiLib.h>
 
 #include <Library/BaseMemoryLib.h>
+#include <Protocol/Shell.h>
 
 EFI_STATUS
 EFIAPI
@@ -10,6 +11,18 @@ UefiMain (
   IN EFI_SYSTEM_TABLE  *SystemTable
   )
 {
+  EFI_SHELL_PROTOCOL* ShellProtocol;
+  EFI_STATUS Status = gBS->LocateProtocol(
+    &gEfiShellProtocolGuid,
+    NULL,
+    (VOID **)&ShellProtocol
+  );
+
+  if (EFI_ERROR(Status)) {
+    Print(L"Can't open EFI_SHELL_PROTOCOL: %r\n", Status);
+    return EFI_SUCCESS;
+  }
+
   EFI_ACPI_6_3_ROOT_SYSTEM_DESCRIPTION_POINTER* RSDP = NULL;
 
   for (UINTN i=0; i<SystemTable->NumberOfTableEntries; i++) {
@@ -55,13 +68,37 @@ UefiMain (
   while (offset < XSDT->Length) {
     UINT64* table_address = (UINT64*)((UINT8*)XSDT + offset);
     EFI_ACPI_6_3_COMMON_HEADER* table = (EFI_ACPI_6_3_COMMON_HEADER*)(*table_address);
-    Print(L"\t%c%c%c%c table is placed at address %p with length 0x%x\n", 
-                                             (CHAR8)((table->Signature>> 0)&0xFF),
-                                             (CHAR8)((table->Signature>> 8)&0xFF),
-                                             (CHAR8)((table->Signature>>16)&0xFF),
-                                             (CHAR8)((table->Signature>>24)&0xFF),
+    CHAR16 TableName[5];
+    TableName[0] = (CHAR16)((table->Signature>> 0)&0xFF);
+    TableName[1] = (CHAR16)((table->Signature>> 8)&0xFF);
+    TableName[2] = (CHAR16)((table->Signature>>16)&0xFF);
+    TableName[3] = (CHAR16)((table->Signature>>24)&0xFF);
+    TableName[4] = 0;
+
+    Print(L"\t%s table is placed at address %p with length 0x%x\n",
+                                             TableName,
                                              table,
                                              table->Length);
+    CHAR16 FileName[9] = {0};
+    StrCpyS(FileName, 9, TableName);
+    StrCatS(FileName, 9, L".aml");
+    SHELL_FILE_HANDLE FileHandle;
+    Status = ShellProtocol->OpenFileByName(FileName,
+                                           &FileHandle,
+                                           EFI_FILE_MODE_CREATE | EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ);
+    if (!EFI_ERROR(Status)) {
+      UINTN size = table->Length;
+      Status = ShellProtocol->WriteFile(FileHandle, &size, (VOID*)table);
+      if (EFI_ERROR(Status)) {
+        Print(L"Error in WriteFile: %r\n", Status);
+      }
+      Status = ShellProtocol->CloseFile(FileHandle);
+      if (EFI_ERROR(Status)) {
+        Print(L"Error in CloseFile: %r\n", Status);
+      }
+    } else {
+      Print(L"Error in OpenFileByName: %r\n", Status);
+    }
     offset += sizeof(UINT64);
   }
 
diff --git a/Lesson_28/UefiLessonsPkg/AcpiInfo/AcpiInfo.inf b/Lesson_28/UefiLessonsPkg/AcpiInfo/AcpiInfo.inf
index 3884e76..53d0356 100644
--- a/Lesson_28/UefiLessonsPkg/AcpiInfo/AcpiInfo.inf
+++ b/Lesson_28/UefiLessonsPkg/AcpiInfo/AcpiInfo.inf
@@ -19,3 +19,6 @@
 [Guids]
   gEfiAcpi20TableGuid
 
+[Protocols]
+  gEfiShellProtocolGuid
+