IntelFrameworkModulePkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / IntelFrameworkModulePkg / Csm / LegacyBiosDxe / LegacyIde.c

diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyIde.c b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyIde.c
index 4e52fe9c03a96eb190d4bd076aa39fae99d8c56e..789f48370eb1b93447f0f10b50453727f61047e7 100644 (file)
--- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyIde.c
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyIde.c
@@ -1,16 +1,9 @@
 /** @file\r
   Collect IDE information from Native EFI Driver\r
 \r
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2018, 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
-\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
@@ -76,7 +69,7 @@ LegacyBiosBuildIdeData (
                                           (VOID *) &LocalHddInfo\r
                                           );\r
   if (!EFI_ERROR (Status)) {\r
-    IdeController = HandleBuffer[0];    \r
+    IdeController = HandleBuffer[0];\r
     //\r
     // Force IDE drive spin up!\r
     //\r
@@ -268,9 +261,9 @@ InitLegacyIdeController (
   )\r
 {\r
   EFI_PCI_IO_PROTOCOL               *PciIo;\r
-  UINT8                             Pi;\r
   UINT32                            IOBarClear;\r
   EFI_STATUS                        Status;\r
+  PCI_TYPE00                        PciData;\r
 \r
   //\r
   // If the IDE channel is in compatibility (legacy) mode, remove all\r
@@ -281,19 +274,36 @@ InitLegacyIdeController (
   Status = gBS->HandleProtocol (\r
                   IdeController,\r
                   &gEfiPciIoProtocolGuid,\r
-                  (VOID **) &PciIo\r
+                  (VOID **)&PciIo\r
                   );\r
-  if (!EFI_ERROR (Status)) {\r
-    IOBarClear = 0x00;\r
-    PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, 0x09, 1, &Pi);\r
-    if ((Pi & 0x01) == 0) {\r
-      PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x10, 1, &IOBarClear);\r
-      PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x14, 1, &IOBarClear);\r
-    }\r
-    if ((Pi & 0x04) == 0) {\r
-      PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x18, 1, &IOBarClear);\r
-      PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x1C, 1, &IOBarClear);\r
-    }\r
+  if (EFI_ERROR (Status)) {\r
+    return ;\r
+  }\r
+\r
+  Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, 0, sizeof (PciData), &PciData);\r
+  if (EFI_ERROR (Status)) {\r
+    return ;\r
+  }\r
+\r
+  //\r
+  // Check whether this is IDE\r
+  //\r
+  if ((PciData.Hdr.ClassCode[2] != PCI_CLASS_MASS_STORAGE) ||\r
+      (PciData.Hdr.ClassCode[1] != PCI_CLASS_MASS_STORAGE_IDE)) {\r
+    return ;\r
+  }\r
+\r
+  //\r
+  // Clear bar for legacy IDE\r
+  //\r
+  IOBarClear = 0x00;\r
+  if ((PciData.Hdr.ClassCode[0] & IDE_PI_REGISTER_PNE) == 0) {\r
+    PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x10, 1, &IOBarClear);\r
+    PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x14, 1, &IOBarClear);\r
+  }\r
+  if ((PciData.Hdr.ClassCode[0] & IDE_PI_REGISTER_SNE) == 0) {\r
+    PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x18, 1, &IOBarClear);\r
+    PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x1C, 1, &IOBarClear);\r
   }\r
 \r
   return ;\r