MdePkg/DxeIoLibEsal: Add new Fifo routines in IoLib class

[mirror_edk2.git] / MdePkg / Library / SmmIoLibSmmCpuIo2 / IoLib.c

diff --git a/MdePkg/Library/SmmIoLibSmmCpuIo2/IoLib.c b/MdePkg/Library/SmmIoLibSmmCpuIo2/IoLib.c
index 53003d123df97a610378f55493738908516f239f..7c8a60384c49ce73495136a551f32084049ddb7f 100644 (file)
--- a/MdePkg/Library/SmmIoLibSmmCpuIo2/IoLib.c
+++ b/MdePkg/Library/SmmIoLibSmmCpuIo2/IoLib.c
@@ -3,11 +3,11 @@
   The implementation of I/O operation for this library instance \r
   are based on EFI_CPU_IO_PROTOCOL.\r
   \r
-  Copyright (c) 2009 - 2010, Intel Corporation<BR>\r
-  All rights reserved. This program and the accompanying materials\r
+  Copyright (c) 2009 - 2010, 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
-  http://opensource.org/licenses/bsd-license.php\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
@@ -16,38 +16,6 @@
 \r
 #include "SmmCpuIoLibInternal.h"\r
 \r
-//\r
-// Globle varible to cache pointer to CpuIo protocol.\r
-//\r
-EFI_SMM_CPU_IO2_PROTOCOL  *mCpuIo2 = NULL;\r
-\r
-/**\r
-  The constructor function caches the pointer to CpuIo protocol.\r
-\r
-  The constructor function locates CpuIo protocol from protocol database.\r
-  It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.\r
-\r
-  @param  ImageHandle   The firmware allocated handle for the EFI image.\r
-  @param  SystemTable   A pointer to the EFI System Table.\r
-\r
-  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-IoLibConstructor (\r
-  IN      EFI_HANDLE                ImageHandle,\r
-  IN      EFI_SYSTEM_TABLE          *SystemTable\r
-  )\r
-{\r
-  EFI_STATUS                        Status;\r
-\r
-  Status = gSmst->SmmLocateProtocol (&gEfiSmmCpuIo2ProtocolGuid, NULL, (VOID **) &mCpuIo2);\r
-  ASSERT_EFI_ERROR (Status);\r
-\r
-  return Status;\r
-}\r
-\r
 /**\r
   Reads registers in the EFI CPU I/O space.\r
 \r
@@ -72,7 +40,7 @@ IoReadWorker (
   EFI_STATUS                        Status;\r
   UINT64                            Data;\r
 \r
-  Status = mCpuIo2->Io.Read (mCpuIo2, Width, Port, 1, &Data);\r
+  Status = gSmst->SmmIo.Io.Read (&gSmst->SmmIo, Width, Port, 1, &Data);\r
   ASSERT_EFI_ERROR (Status);\r
 \r
   return Data;\r
@@ -90,7 +58,7 @@ IoReadWorker (
   @param  Width         The width of the I/O operation.\r
   @param  Data          The value to write to the I/O port.\r
 \r
-  @return The paramter of Data.\r
+  @return The parameter of Data.\r
 \r
 **/\r
 UINT64\r
@@ -103,7 +71,7 @@ IoWriteWorker (
 {\r
   EFI_STATUS                        Status;\r
 \r
-  Status = mCpuIo2->Io.Write (mCpuIo2, Width, Port, 1, &Data);\r
+  Status = gSmst->SmmIo.Io.Write (&gSmst->SmmIo, Width, Port, 1, &Data);\r
   ASSERT_EFI_ERROR (Status);\r
 \r
   return Data;\r
@@ -133,7 +101,7 @@ MmioReadWorker (
   EFI_STATUS                        Status;\r
   UINT64                            Data;\r
 \r
-  Status = mCpuIo2->Mem.Read (mCpuIo2, Width, Address, 1, &Data);\r
+  Status = gSmst->SmmIo.Mem.Read (&gSmst->SmmIo, Width, Address, 1, &Data);\r
   ASSERT_EFI_ERROR (Status);\r
 \r
   return Data;\r
@@ -164,7 +132,7 @@ MmioWriteWorker (
 {\r
   EFI_STATUS                        Status;\r
 \r
-  Status = mCpuIo2->Mem.Write (mCpuIo2, Width, Address, 1, &Data);\r
+  Status = gSmst->SmmIo.Mem.Write (&gSmst->SmmIo, Width, Address, 1, &Data);\r
   ASSERT_EFI_ERROR (Status);\r
 \r
   return Data;\r