IntelFrameworkModulePkg: Modify CpuIoDxe to support new IoLib library

[mirror_edk2.git] / IntelFrameworkModulePkg / Universal / CpuIoDxe / CpuIo.c

diff --git a/IntelFrameworkModulePkg/Universal/CpuIoDxe/CpuIo.c b/IntelFrameworkModulePkg/Universal/CpuIoDxe/CpuIo.c
index 0202fc57bf05cd4eb0f504494da4d6662ca358f7..9db9dbe97407827b0404b0766cd7af9c5a832137 100644 (file)
--- a/IntelFrameworkModulePkg/Universal/CpuIoDxe/CpuIo.c
+++ b/IntelFrameworkModulePkg/Universal/CpuIoDxe/CpuIo.c
@@ -1,8 +1,10 @@
 /** @file\r
   Uses the services of the I/O Library to produce the CPU I/O Protocol\r
 \r
 /** @file\r
   Uses the services of the I/O Library to produce the CPU I/O Protocol\r
 \r

-Copyright (c) 2004 - 2010, Intel Corporation                                                         \r
-All rights reserved. This program and the accompanying materials                          \r
+Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>\r
+\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
 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


@@ -116,7 +118,7 @@ CpuIoCheckParameter (
   //\r
   // Check to see if Width is in the valid range\r
   //\r
   //\r
   // Check to see if Width is in the valid range\r
   //\r

-  if (Width < 0 || Width >= EfiCpuIoWidthMaximum) {\r
+  if ((UINT32)Width >= EfiCpuIoWidthMaximum) {\r

     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r


@@ -175,8 +177,9 @@ CpuIoCheckParameter (
 \r
   //\r
   // Check to see if Buffer is aligned\r
 \r
   //\r
   // Check to see if Buffer is aligned\r

+  // (IA-32 allows UINT64 and INT64 data types to be 32-bit aligned.)\r

   //\r
   //\r

-  if (((UINTN)Buffer & (mInStride[Width] - 1)) != 0) {\r
+  if (((UINTN)Buffer & ((MIN (sizeof (UINTN), mInStride[Width])  - 1))) != 0) {\r

     return EFI_UNSUPPORTED;\r
   }\r
 \r
     return EFI_UNSUPPORTED;\r
   }\r
 \r


@@ -409,6 +412,31 @@ CpuIoServiceRead (
   InStride = mInStride[Width];\r
   OutStride = mOutStride[Width];\r
   OperationWidth = (EFI_CPU_IO_PROTOCOL_WIDTH) (Width & 0x03);\r
   InStride = mInStride[Width];\r
   OutStride = mOutStride[Width];\r
   OperationWidth = (EFI_CPU_IO_PROTOCOL_WIDTH) (Width & 0x03);\r

+\r
+  //\r
+  // Fifo operations supported for (mInStride[Width] == 0)\r
+  //\r
+  if (InStride == 0) {\r
+    switch (OperationWidth) {\r
+    case EfiCpuIoWidthUint8:\r
+      IoReadFifo8 ((UINTN)Address, Count, Buffer);\r
+      return EFI_SUCCESS;\r
+    case EfiCpuIoWidthUint16:\r
+      IoReadFifo16 ((UINTN)Address, Count, Buffer);\r
+      return EFI_SUCCESS;\r
+    case EfiCpuIoWidthUint32:\r
+      IoReadFifo32 ((UINTN)Address, Count, Buffer);\r
+      return EFI_SUCCESS;\r
+    default:\r
+      //\r
+      // The CpuIoCheckParameter call above will ensure that this\r
+      // path is not taken.\r
+      //\r
+      ASSERT (FALSE);\r
+      break;\r
+    }\r
+  }\r
+\r

   for (Uint8Buffer = Buffer; Count > 0; Address += InStride, Uint8Buffer += OutStride, Count--) {\r
     if (OperationWidth == EfiCpuIoWidthUint8) {\r
       *Uint8Buffer = IoRead8 ((UINTN)Address);\r
   for (Uint8Buffer = Buffer; Count > 0; Address += InStride, Uint8Buffer += OutStride, Count--) {\r
     if (OperationWidth == EfiCpuIoWidthUint8) {\r
       *Uint8Buffer = IoRead8 ((UINTN)Address);\r


@@ -491,6 +519,31 @@ CpuIoServiceWrite (
   InStride = mInStride[Width];\r
   OutStride = mOutStride[Width];\r
   OperationWidth = (EFI_CPU_IO_PROTOCOL_WIDTH) (Width & 0x03);\r
   InStride = mInStride[Width];\r
   OutStride = mOutStride[Width];\r
   OperationWidth = (EFI_CPU_IO_PROTOCOL_WIDTH) (Width & 0x03);\r

+\r
+  //\r
+  // Fifo operations supported for (mInStride[Width] == 0)\r
+  //\r
+  if (InStride == 0) {\r
+    switch (OperationWidth) {\r
+    case EfiCpuIoWidthUint8:\r
+      IoWriteFifo8 ((UINTN)Address, Count, Buffer);\r
+      return EFI_SUCCESS;\r
+    case EfiCpuIoWidthUint16:\r
+      IoWriteFifo16 ((UINTN)Address, Count, Buffer);\r
+      return EFI_SUCCESS;\r
+    case EfiCpuIoWidthUint32:\r
+      IoWriteFifo32 ((UINTN)Address, Count, Buffer);\r
+      return EFI_SUCCESS;\r
+    default:\r
+      //\r
+      // The CpuIoCheckParameter call above will ensure that this\r
+      // path is not taken.\r
+      //\r
+      ASSERT (FALSE);\r
+      break;\r
+    }\r
+  }\r
+\r

   for (Uint8Buffer = (UINT8 *)Buffer; Count > 0; Address += InStride, Uint8Buffer += OutStride, Count--) {\r
     if (OperationWidth == EfiCpuIoWidthUint8) {\r
       IoWrite8 ((UINTN)Address, *Uint8Buffer);\r
   for (Uint8Buffer = (UINT8 *)Buffer; Count > 0; Address += InStride, Uint8Buffer += OutStride, Count--) {\r
     if (OperationWidth == EfiCpuIoWidthUint8) {\r
       IoWrite8 ((UINTN)Address, *Uint8Buffer);\r