MdeModulePkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / EhciPei / UsbHcMem.c

diff --git a/MdeModulePkg/Bus/Pci/EhciPei/UsbHcMem.c b/MdeModulePkg/Bus/Pci/EhciPei/UsbHcMem.c
index a0419bd857229992804a817c21f6107c2842a6ac..269b3edb848c620ae5a7552a743152cedc28b952 100644 (file)
--- a/MdeModulePkg/Bus/Pci/EhciPei/UsbHcMem.c
+++ b/MdeModulePkg/Bus/Pci/EhciPei/UsbHcMem.c
@@ -2,16 +2,9 @@
 PEIM to produce gPeiUsb2HostControllerPpiGuid based on gPeiUsbControllerPpiGuid\r
 which is used to enable recovery function from USB Drivers.\r
 \r
-Copyright (c) 2010 - 2017, Intel Corporation. All rights reserved.<BR>\r
-  \r
-This program and the accompanying materials\r
-are licensed and made available under the terms and conditions\r
-of the BSD License which accompanies this distribution.  The\r
-full text of the license may be found at\r
-http://opensource.org/licenses/bsd-license.php\r
+Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>\r
 \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
 \r
 **/\r
 \r
@@ -54,28 +47,28 @@ UsbHcAllocMemBlock (
       return NULL;\r
   }\r
   ZeroMem ((VOID   *)(UINTN)TempPtr, PageNumber*EFI_PAGE_SIZE);\r
-  \r
+\r
   //\r
   // each bit in the bit array represents USBHC_MEM_UNIT\r
   // bytes of memory in the memory block.\r
   //\r
   ASSERT (USBHC_MEM_UNIT * 8 <= EFI_PAGE_SIZE);\r
-  \r
+\r
   Block = (USBHC_MEM_BLOCK*)(UINTN)TempPtr;\r
   Block->BufLen   = EFI_PAGES_TO_SIZE (Pages);\r
   Block->BitsLen  = Block->BufLen / (USBHC_MEM_UNIT * 8);\r
-  \r
+\r
   PageNumber =  (Block->BitsLen)/PAGESIZE +1;\r
   Status = PeiServicesAllocatePages (\r
              EfiBootServicesCode,\r
              PageNumber,\r
              &TempPtr\r
              );\r
-  \r
+\r
     if (EFI_ERROR (Status)) {\r
       return NULL;\r
     }\r
-  ZeroMem ((VOID   *)(UINTN)TempPtr, PageNumber*EFI_PAGE_SIZE);        \r
+  ZeroMem ((VOID   *)(UINTN)TempPtr, PageNumber*EFI_PAGE_SIZE);\r
 \r
   Block->Bits  = (UINT8 *)(UINTN)TempPtr;\r
 \r
@@ -184,7 +177,7 @@ UsbHcAllocMemFromBlock (
   if (Available < Units) {\r
     return NULL;\r
   }\r
-  \r
+\r
   //\r
   // Mark the memory as allocated\r
   //\r
@@ -283,7 +276,7 @@ UsbHcIsMemBlockEmpty (
 {\r
   UINTN                   Index;\r
 \r
-  \r
+\r
   for (Index = 0; Index < Block->BitsLen; Index++) {\r
     if (Block->Bits[Index] != 0) {\r
       return FALSE;\r
@@ -293,35 +286,10 @@ UsbHcIsMemBlockEmpty (
   return TRUE;\r
 }\r
 \r
-/**\r
-  Unlink the memory block from the pool's list.\r
-\r
-  @param  Head           The block list head of the memory's pool.\r
-  @param  BlockToUnlink  The memory block to unlink.\r
-\r
-**/\r
-VOID\r
-UsbHcUnlinkMemBlock (\r
-  IN USBHC_MEM_BLOCK      *Head,\r
-  IN USBHC_MEM_BLOCK      *BlockToUnlink\r
-  )\r
-{\r
-  USBHC_MEM_BLOCK         *Block;\r
-\r
-  ASSERT ((Head != NULL) && (BlockToUnlink != NULL));\r
-\r
-  for (Block = Head; Block != NULL; Block = Block->Next) {\r
-    if (Block->Next == BlockToUnlink) {\r
-      Block->Next         = BlockToUnlink->Next;\r
-      BlockToUnlink->Next = NULL;\r
-      break;\r
-    }\r
-  }\r
-}\r
 \r
 /**\r
   Initialize the memory management pool for the host controller.\r
-  \r
+\r
   @param  Ehc                   The EHCI device.\r
   @param  Check4G               Whether the host controller requires allocated memory.\r
                                 from one 4G address space.\r
@@ -342,7 +310,7 @@ UsbHcInitMemPool (
   UINTN               PageNumber;\r
   EFI_STATUS              Status;\r
   EFI_PHYSICAL_ADDRESS        TempPtr;\r
-  \r
+\r
   PageNumber =  sizeof(USBHC_MEM_POOL)/PAGESIZE +1;\r
   Status = PeiServicesAllocatePages (\r
              EfiBootServicesCode,\r
@@ -353,9 +321,9 @@ UsbHcInitMemPool (
     if (EFI_ERROR (Status)) {\r
       return NULL;\r
     }\r
-  ZeroMem ((VOID   *)(UINTN)TempPtr, PageNumber*EFI_PAGE_SIZE);        \r
+  ZeroMem ((VOID   *)(UINTN)TempPtr, PageNumber*EFI_PAGE_SIZE);\r
 \r
-  Pool = (USBHC_MEM_POOL *) ((UINTN) TempPtr); \r
+  Pool = (USBHC_MEM_POOL *) ((UINTN) TempPtr);\r
 \r
   Pool->Check4G = Check4G;\r
   Pool->Which4G = Which4G;\r
@@ -390,8 +358,6 @@ UsbHcFreeMemPool (
 \r
   //\r
   // Unlink all the memory blocks from the pool, then free them.\r
-  // UsbHcUnlinkMemBlock can't be used to unlink and free the\r
-  // first block.\r
   //\r
   for (Block = Pool->Head->Next; Block != NULL; Block = Block->Next) {\r
     UsbHcFreeMemBlock (Ehc, Pool, Block);\r
@@ -405,7 +371,7 @@ UsbHcFreeMemPool (
 /**\r
   Allocate some memory from the host controller's memory pool\r
   which can be used to communicate with host controller.\r
-  \r
+\r
   @param  Ehc       The EHCI device.\r
   @param  Pool      The host controller's memory pool.\r
   @param  Size      Size of the memory to allocate.\r
@@ -464,7 +430,7 @@ UsbHcAllocateMem (
   if (NewBlock == NULL) {\r
     return NULL;\r
   }\r
-  \r
+\r
   //\r
   // Add the new memory block to the pool, then allocate memory from it\r
   //\r