Fix capitalization

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@212 6f19259b-4bc3-4df7-8a09-765794883524

EdkModulePkg/Core/DxeIplPeim/Ia32/ImageRead.c

@@ -0,0 +1,112 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  ImageRead.c
+
+Abstract:
+
+--*/
+
+#include <DxeIpl.h>
+
+EFI_STATUS
+EFIAPI
+PeiImageRead (
+  IN     VOID    *FileHandle,
+  IN     UINTN   FileOffset,
+  IN OUT UINTN   *ReadSize,
+  OUT    VOID    *Buffer
+  )
+/*++
+
+Routine Description:
+
+  Support routine for the PE/COFF Loader that reads a buffer from a PE/COFF file
+
+Arguments:
+
+  FileHandle - The handle to the PE/COFF file
+
+  FileOffset - The offset, in bytes, into the file to read
+
+  ReadSize   - The number of bytes to read from the file starting at FileOffset
+
+  Buffer     - A pointer to the buffer to read the data into.
+
+Returns:
+
+  EFI_SUCCESS - ReadSize bytes of data were read into Buffer from the PE/COFF file starting at FileOffset
+
+--*/
+{
+  UINT8 *Destination32;
+  UINT8 *Source32;
+  UINTN  Length;
+
+ 
+  Destination32 = Buffer;
+  Source32      = (UINT8 *) ((UINTN) FileHandle + FileOffset);
+
+  //
+  // This function assumes 32-bit alignment to increase performance
+  //
+//  ASSERT (ALIGN_POINTER (Destination32, sizeof (UINT32)) == Destination32);
+//  ASSERT (ALIGN_POINTER (Source32, sizeof (UINT32)) == Source32);
+
+  Length = *ReadSize;
+  while (Length--) {
+    *(Destination32++) = *(Source32++);
+  }
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+GetImageReadFunction (
+  IN      PE_COFF_LOADER_IMAGE_CONTEXT  *ImageContext
+  )
+/*++
+
+Routine Description:
+  Support routine to return the PE32 Image Reader.
+  If the PeiImageRead() function is less than a page
+  in legnth. If the function is more than a page the DXE IPL will crash!!!!
+
+Arguments:
+  ImageContext  - The context of the image being loaded
+
+Returns:
+  EFI_SUCCESS - If Image function location is found
+
+--*/
+{
+  VOID        *MemoryBuffer;
+
+  if (gInMemory) {
+    ImageContext->ImageRead = PeiImageRead;
+    return EFI_SUCCESS;
+  }
+
+  //
+  // BugBug; This code assumes PeiImageRead() is less than a page in size!
+  //  Allocate a page so we can shaddow the read function from FLASH into 
+  //  memory to increase performance. 
+  //
+  
+  MemoryBuffer = AllocateCopyPool (0x400, (VOID *)(UINTN) PeiImageRead);
+  ASSERT (MemoryBuffer != NULL);
+
+  ImageContext->ImageRead = (PE_COFF_LOADER_READ_FILE) (UINTN) MemoryBuffer;
+
+  return EFI_SUCCESS;
+}