MdePkg/PciExpress: Add macro PCI_ECAM_ADDRESS

[mirror_edk2.git] / MdePkg / Include / Library / PciExpressLib.h

diff --git a/MdePkg/Include/Library/PciExpressLib.h b/MdePkg/Include/Library/PciExpressLib.h
index e312d575285783e73c5601998728559376fc5a86..f65b44384f8b15e4ab98230601faccae6aee1b08 100644 (file)
--- a/MdePkg/Include/Library/PciExpressLib.h
+++ b/MdePkg/Include/Library/PciExpressLib.h
@@ -5,7 +5,7 @@
   configuration cycles must be through the 256 MB PCI Express MMIO window whose base address\r
   is defined by PcdPciExpressBaseAddress.\r
 \r
-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2017, 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
@@ -35,8 +35,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
   @return The encode PCI address.\r
 \r
 **/\r
-#define PCI_EXPRESS_LIB_ADDRESS(Bus,Device,Function,Offset) \\r
-  (((Offset) & 0xfff) | (((Function) & 0x07) << 12) | (((Device) & 0x1f) << 15) | (((Bus) & 0xff) << 20))\r
+#define PCI_EXPRESS_LIB_ADDRESS(Bus,Device,Function,Offset) PCI_ECAM_ADDRESS ((Bus), (Device), (Function), (Offset))\r
 \r
 /**\r
   Registers a PCI device so PCI configuration registers may be accessed after \r