diff options
Diffstat (limited to 'Core/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Dxe.c')
-rw-r--r-- | Core/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Dxe.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Core/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Dxe.c b/Core/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Dxe.c new file mode 100644 index 0000000000..c4a8a47682 --- /dev/null +++ b/Core/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Dxe.c @@ -0,0 +1,53 @@ +/** @file
+ Debug Port Library implementation based on usb3 debug port.
+
+ Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
+ 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.
+
+**/
+
+#include <Base.h>
+#include <PiDxe.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include "DebugCommunicationLibUsb3Internal.h"
+
+/**
+ Allocate aligned memory for XHC's usage.
+
+ @param BufferSize The size, in bytes, of the Buffer.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID*
+AllocateAlignBuffer (
+ IN UINTN BufferSize
+ )
+{
+ EFI_PHYSICAL_ADDRESS TmpAddr;
+ EFI_STATUS Status;
+ VOID *Buf;
+
+ Buf = NULL;
+
+ if (gBS != NULL) {
+ TmpAddr = 0xFFFFFFFF;
+ Status = gBS->AllocatePages (
+ AllocateMaxAddress,
+ EfiACPIMemoryNVS,
+ EFI_SIZE_TO_PAGES (BufferSize),
+ &TmpAddr
+ );
+ if (!EFI_ERROR (Status)) {
+ Buf = (VOID *) (UINTN) TmpAddr;
+ }
+ }
+
+ return Buf;
+}
|