Fix comparisons of enumerated types which may cause warnings for some compilers.

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / PciBusDxe / PciIo.c

diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c
index e4bde1ebe978a90944c27dfc1c9b8bc8f1d9bbc5..12f6997ac586cf86aecae7efb15fba6fe52fb567 100644 (file)
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c
@@ -1,7 +1,7 @@
 /** @file\r
   EFI PCI IO protocol functions implementation for PCI Bus module.\r
 \r
-Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions of the BSD License\r
 which accompanies this distribution.  The full text of the license may be found at\r
@@ -85,7 +85,7 @@ PciIoVerifyBarAccess (
   IN UINT64                          *Offset\r
   )\r
 {\r
-  if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
+  if ((UINT32)Width >= EfiPciIoWidthMaximum) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -146,7 +146,7 @@ PciIoVerifyConfigAccess (
 {\r
   UINT64  ExtendOffset;\r
 \r
-  if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
+  if ((UINT32)Width >= EfiPciIoWidthMaximum) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -215,7 +215,7 @@ PciIoPollMem (
 \r
   PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
 \r
-  if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
+  if ((UINT32)Width >= EfiPciIoWidthMaximum) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -322,7 +322,7 @@ PciIoPollIo (
 \r
   PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
 \r
-  if (Width < 0 || Width > EfiPciIoWidthUint64) {\r
+  if ((UINT32)Width > EfiPciIoWidthUint64) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -421,7 +421,7 @@ PciIoMemRead (
 \r
   PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
 \r
-  if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
+  if ((UINT32)Width >= EfiPciIoWidthMaximum) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -500,7 +500,7 @@ PciIoMemWrite (
 \r
   PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
 \r
-  if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
+  if ((UINT32)Width >= EfiPciIoWidthMaximum) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -578,7 +578,7 @@ PciIoIoRead (
 \r
   PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
 \r
-  if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
+  if ((UINT32)Width >= EfiPciIoWidthMaximum) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -656,7 +656,7 @@ PciIoIoWrite (
 \r
   PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
 \r
-  if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
+  if ((UINT32)Width >= EfiPciIoWidthMaximum) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -881,7 +881,7 @@ PciIoCopyMem (
 \r
   PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
 \r
-  if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
+  if ((UINT32)Width >= EfiPciIoWidthMaximum) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -970,7 +970,7 @@ PciIoMap (
 \r
   PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
 \r
-  if (Operation < 0 || Operation >= EfiPciIoOperationMaximum) {\r
+  if ((UINT32)Operation >= EfiPciIoOperationMaximum) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -1305,11 +1305,11 @@ ModifyRootBridgeAttributes (
   }\r
 \r
   //\r
-  // Mask off EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE & \r
-  // EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM, which are not supported by PCI root bridge.\r
+  // Mask off attributes not supported by PCI root bridge.\r
   //\r
   Attributes &= ~(UINT64)(EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE |\r
-                          EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM);\r
+                          EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM |\r
+                          EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE);\r
 \r
   //\r
   // Record the new attribute of the Root Bridge\r
@@ -1579,24 +1579,6 @@ PciIoAttributes (
     return EFI_UNSUPPORTED;\r
   }\r
 \r
-  //\r
-  // workaround for PCI drivers which always set ISA_IO or VGA_IO attribute without detecting support of\r
-  // ISA_IO/ISA_IO_16 or VGA_IO/VGA_IO_16 to maintain backward-compatibility.\r
-  //\r
-  if (((Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_IO) != 0) && \r
-      ((PciIoDevice->Supports & (EFI_PCI_IO_ATTRIBUTE_VGA_IO | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) \\r
-        == EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) {\r
-    Attributes &= ~(UINT64)EFI_PCI_IO_ATTRIBUTE_VGA_IO;\r
-    Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_IO_16;\r
-  }\r
-\r
-  if (((Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO) != 0) && \r
-      ((PciIoDevice->Supports & (EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO | EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16)) \\r
-        == EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16)) {\r
-    Attributes &= ~(UINT64)EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO;\r
-    Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16;\r
-  }\r
-\r
   //\r
   // If no attributes can be supported, then return.\r
   // Otherwise, set the attributes that it can support.\r