diff options
| author | Elvin Li <elvin.li@intel.com> | 2014-10-22 05:01:58 +0000 |
|---|---|---|
| committer | li-elvin <li-elvin@Edk2> | 2014-10-22 05:01:58 +0000 |
| commit | 2cb6eabe0b358fe0d4e4dd602f84b5f5d3e39a6c (patch) | |
| tree | 7aedee364f4e6563ecd54e7a98efe9cfba2db331 /SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Pei.c | |
| parent | fbb393ab7a9c33ca4ae81fb3f91a7d2a5671bd62 (diff) | |
| download | edk2-platforms-2cb6eabe0b358fe0d4e4dd602f84b5f5d3e39a6c.tar.xz | |
Add DebugCommunicationLibUsb3 for USB3.0 source level debug support.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Elvin Li <elvin.li@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16224 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Pei.c')
| -rw-r--r-- | SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Pei.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Pei.c b/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Pei.c new file mode 100644 index 0000000000..be3174e75f --- /dev/null +++ b/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Pei.c @@ -0,0 +1,45 @@ +/** @file
+ Debug Port Library implementation based on usb3 debug port.
+
+ Copyright (c) 2014, 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 <PiPei.h>
+#include <Library/PeiServicesLib.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
+ )
+{
+ VOID *Buf;
+ EFI_PHYSICAL_ADDRESS Address;
+ EFI_STATUS Status;
+
+ Buf = NULL;
+ Status = PeiServicesAllocatePages (EfiACPIMemoryNVS, EFI_SIZE_TO_PAGES (BufferSize), &Address);
+ if (EFI_ERROR (Status)) {
+ Buf = NULL;
+ } else {
+ Buf = (VOID *)(UINTN) Address;
+ }
+ return Buf;
+}
+
|