/** @file\r
- I/O Library.\r
+ I/O Library. The implementations are based on EFI_PEI_SERVICE->CpuIo interface.\r
\r
- Copyright (c) 2006, Intel Corporation<BR>\r
- All rights reserved. This program and the accompanying materials\r
+ Copyright (c) 2006 - 2008, 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
\r
@param Port The I/O port to read.\r
\r
- @return The value read from Port.\r
+ @return The value read.\r
\r
**/\r
UINT8\r
IN UINTN Port\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
IN UINT8 Value\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
serialized.\r
\r
If 16-bit I/O port operations are not supported, then ASSERT().\r
+ If Port is not aligned on a 16-bit boundary, then ASSERT().\r
\r
@param Port The I/O port to read.\r
\r
- @return The value read from Port.\r
+ @return The value read.\r
\r
**/\r
UINT16\r
IN UINTN Port\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
operations are serialized.\r
\r
If 16-bit I/O port operations are not supported, then ASSERT().\r
-\r
+ If Port is not aligned on a 16-bit boundary, then ASSERT().\r
+ \r
@param Port The I/O port to write.\r
@param Value The value to write to the I/O port.\r
\r
IN UINT16 Value\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
serialized.\r
\r
If 32-bit I/O port operations are not supported, then ASSERT().\r
-\r
+ If Port is not aligned on a 32-bit boundary, then ASSERT().\r
+ \r
@param Port The I/O port to read.\r
\r
- @return The value read from Port.\r
+ @return The value read.\r
\r
**/\r
UINT32\r
IN UINTN Port\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
operations are serialized.\r
\r
If 32-bit I/O port operations are not supported, then ASSERT().\r
-\r
+ If Port is not aligned on a 32-bit boundary, then ASSERT().\r
+ \r
@param Port The I/O port to write.\r
@param Value The value to write to the I/O port.\r
\r
IN UINT32 Value\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
serialized.\r
\r
If 64-bit I/O port operations are not supported, then ASSERT().\r
+ If Port is not aligned on a 64-bit boundary, then ASSERT().\r
\r
@param Port The I/O port to read.\r
\r
- @return The value read from Port.\r
+ @return The value read.\r
\r
**/\r
UINT64\r
IN UINTN Port\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
operations are serialized.\r
\r
If 64-bit I/O port operations are not supported, then ASSERT().\r
+ If Port is not aligned on a 64-bit boundary, then ASSERT().\r
\r
@param Port The I/O port to write.\r
@param Value The value to write to the I/O port.\r
IN UINT64 Value\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
\r
@param Address The MMIO register to read.\r
\r
- @return The value read from Port.\r
+ @return The value read.\r
\r
**/\r
UINT8\r
IN UINTN Address\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
@param Address The MMIO register to write.\r
@param Value The value to write to the MMIO register.\r
\r
- @return The Value written back to Mmio register.\r
+ @return Value.\r
+\r
**/\r
UINT8\r
EFIAPI\r
IN UINT8 Value\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
operations are serialized.\r
\r
If 16-bit MMIO register operations are not supported, then ASSERT().\r
+ If Address is not aligned on a 16-bit boundary, then ASSERT().\r
\r
@param Address The MMIO register to read.\r
\r
- @return The value read from Address.\r
+ @return The value read.\r
\r
**/\r
UINT16\r
IN UINTN Address\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
and write operations are serialized.\r
\r
If 16-bit MMIO register operations are not supported, then ASSERT().\r
+ If Address is not aligned on a 16-bit boundary, then ASSERT().\r
\r
@param Address The MMIO register to write.\r
@param Value The value to write to the MMIO register.\r
\r
- @return The Value written back to Mmio register\r
+ @return Value.\r
\r
**/\r
UINT16\r
IN UINT16 Value\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
operations are serialized.\r
\r
If 32-bit MMIO register operations are not supported, then ASSERT().\r
+ If Address is not aligned on a 32-bit boundary, then ASSERT().\r
\r
@param Address The MMIO register to read.\r
\r
- @return The value read from Address.\r
+ @return The value read.\r
\r
**/\r
UINT32\r
IN UINTN Address\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
and write operations are serialized.\r
\r
If 32-bit MMIO register operations are not supported, then ASSERT().\r
+ If Address is not aligned on a 32-bit boundary, then ASSERT().\r
\r
@param Address The MMIO register to write.\r
@param Value The value to write to the MMIO register.\r
\r
- @return The Value written back to Mmio register\r
+ @return Value.\r
\r
**/\r
UINT32\r
IN UINT32 Value\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
operations are serialized.\r
\r
If 64-bit MMIO register operations are not supported, then ASSERT().\r
+ If Address is not aligned on a 64-bit boundary, then ASSERT().\r
\r
@param Address The MMIO register to read.\r
\r
- @return The value read from Address.\r
+ @return The value read.\r
\r
**/\r
UINT64\r
IN UINTN Address\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
//\r
// Make sure Address is aligned on a 64-bit boundary.\r
//\r
- ASSERT ((Address & 7) == 0);\r
+ ASSERT ((Address & (sizeof (UINT64) - 1)) == 0);\r
return CpuIo->MemRead64 (PeiServices, CpuIo, (UINT64) Address);\r
\r
}\r
and write operations are serialized.\r
\r
If 64-bit MMIO register operations are not supported, then ASSERT().\r
+ If Address is not aligned on a 64-bit boundary, then ASSERT().\r
\r
@param Address The MMIO register to write.\r
@param Value The value to write to the MMIO register.\r
\r
- @return The Value written back to Mmio register\r
**/\r
UINT64\r
EFIAPI\r
IN UINT64 Value\r
)\r
{\r
- EFI_PEI_SERVICES **PeiServices;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
EFI_PEI_CPU_IO_PPI *CpuIo;\r
\r
PeiServices = GetPeiServicesTablePointer ();\r
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