diff options
Diffstat (limited to 'MdePkg/Library/SmmIoLibSmmCpuIo2/IoHighLevel.c')
| -rw-r--r-- | MdePkg/Library/SmmIoLibSmmCpuIo2/IoHighLevel.c | 2272 |
1 files changed, 2272 insertions, 0 deletions
diff --git a/MdePkg/Library/SmmIoLibSmmCpuIo2/IoHighLevel.c b/MdePkg/Library/SmmIoLibSmmCpuIo2/IoHighLevel.c new file mode 100644 index 0000000000..ae772b81bc --- /dev/null +++ b/MdePkg/Library/SmmIoLibSmmCpuIo2/IoHighLevel.c @@ -0,0 +1,2272 @@ +/** @file
+ High-level Io/Mmio functions.
+
+ All assertions for bit field operations are handled bit field functions in the
+ Base Library.
+
+ Copyright (c) 2009 - 2010, Intel Corporation<BR>
+ All rights reserved. This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ The following IoLib instances share the same version of this file:
+
+ BaseIoLibIntrinsic
+ DxeIoLibCpuIo
+ PeiIoLibCpuIo
+ SmmIoLibCpuIo
+**/
+
+#include "SmmCpuIoLibInternal.h"
+
+/**
+ Reads an 8-bit I/O port, performs a bitwise OR, and writes the
+ result back to the 8-bit I/O port.
+
+ Reads the 8-bit I/O port specified by Port, performs a bitwise OR
+ between the read result and the value specified by OrData, and writes the
+ result to the 8-bit I/O port specified by Port. The value written to the I/O
+ port is returned. This function must guarantee that all I/O read and write
+ operations are serialized.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param OrData The value to OR with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT8
+EFIAPI
+IoOr8 (
+ IN UINTN Port,
+ IN UINT8 OrData
+ )
+{
+ return IoWrite8 (Port, (UINT8) (IoRead8 (Port) | OrData));
+}
+
+/**
+ Reads an 8-bit I/O port, performs a bitwise AND, and writes the result back
+ to the 8-bit I/O port.
+
+ Reads the 8-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, and writes the result to
+ the 8-bit I/O port specified by Port. The value written to the I/O port is
+ returned. This function must guarantee that all I/O read and write operations
+ are serialized.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param AndData The value to AND with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT8
+EFIAPI
+IoAnd8 (
+ IN UINTN Port,
+ IN UINT8 AndData
+ )
+{
+ return IoWrite8 (Port, (UINT8) (IoRead8 (Port) & AndData));
+}
+
+/**
+ Reads an 8-bit I/O port, performs a bitwise AND followed by a bitwise
+ inclusive OR, and writes the result back to the 8-bit I/O port.
+
+ Reads the 8-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, performs a bitwise OR
+ between the result of the AND operation and the value specified by OrData,
+ and writes the result to the 8-bit I/O port specified by Port. The value
+ written to the I/O port is returned. This function must guarantee that all
+ I/O read and write operations are serialized.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param AndData The value to AND with the read value from the I/O port.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT8
+EFIAPI
+IoAndThenOr8 (
+ IN UINTN Port,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return IoWrite8 (Port, (UINT8) ((IoRead8 (Port) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of an I/O register.
+
+ Reads the bit field in an 8-bit I/O register. The bit field is specified by
+ the StartBit and the EndBit. The value of the bit field is returned.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+
+ @return The value read.
+
+**/
+UINT8
+EFIAPI
+IoBitFieldRead8 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead8 (IoRead8 (Port), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to an I/O register.
+
+ Writes Value to the bit field of the I/O register. The bit field is specified
+ by the StartBit and the EndBit. All other bits in the destination I/O
+ register are preserved. The value written to the I/O port is returned. Extra
+ left bits in Value are stripped.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param Value New value of the bit field.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT8
+EFIAPI
+IoBitFieldWrite8 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 Value
+ )
+{
+ return IoWrite8 (
+ Port,
+ BitFieldWrite8 (IoRead8 (Port), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit port, performs a bitwise OR, and writes the
+ result back to the bit field in the 8-bit port.
+
+ Reads the 8-bit I/O port specified by Port, performs a bitwise OR
+ between the read result and the value specified by OrData, and writes the
+ result to the 8-bit I/O port specified by Port. The value written to the I/O
+ port is returned. This function must guarantee that all I/O read and write
+ operations are serialized. Extra left bits in OrData are stripped.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param OrData The value to OR with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT8
+EFIAPI
+IoBitFieldOr8 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 OrData
+ )
+{
+ return IoWrite8 (
+ Port,
+ BitFieldOr8 (IoRead8 (Port), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit port, performs a bitwise AND, and writes the
+ result back to the bit field in the 8-bit port.
+
+ Reads the 8-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, and writes the result to
+ the 8-bit I/O port specified by Port. The value written to the I/O port is
+ returned. This function must guarantee that all I/O read and write operations
+ are serialized. Extra left bits in AndData are stripped.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT8
+EFIAPI
+IoBitFieldAnd8 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData
+ )
+{
+ return IoWrite8 (
+ Port,
+ BitFieldAnd8 (IoRead8 (Port), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit port, performs a bitwise AND followed by a
+ bitwise OR, and writes the result back to the bit field in the
+ 8-bit port.
+
+ Reads the 8-bit I/O port specified by Port, performs a bitwise AND followed
+ by a bitwise OR between the read result and the value specified by
+ AndData, and writes the result to the 8-bit I/O port specified by Port. The
+ value written to the I/O port is returned. This function must guarantee that
+ all I/O read and write operations are serialized. Extra left bits in both
+ AndData and OrData are stripped.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with the read value from the I/O port.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT8
+EFIAPI
+IoBitFieldAndThenOr8 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return IoWrite8 (
+ Port,
+ BitFieldAndThenOr8 (IoRead8 (Port), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 16-bit I/O port, performs a bitwise OR, and writes the
+ result back to the 16-bit I/O port.
+
+ Reads the 16-bit I/O port specified by Port, performs a bitwise OR
+ between the read result and the value specified by OrData, and writes the
+ result to the 16-bit I/O port specified by Port. The value written to the I/O
+ port is returned. This function must guarantee that all I/O read and write
+ operations are serialized.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param OrData The value to OR with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT16
+EFIAPI
+IoOr16 (
+ IN UINTN Port,
+ IN UINT16 OrData
+ )
+{
+ return IoWrite16 (Port, (UINT16) (IoRead16 (Port) | OrData));
+}
+
+/**
+ Reads a 16-bit I/O port, performs a bitwise AND, and writes the result back
+ to the 16-bit I/O port.
+
+ Reads the 16-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, and writes the result to
+ the 16-bit I/O port specified by Port. The value written to the I/O port is
+ returned. This function must guarantee that all I/O read and write operations
+ are serialized.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param AndData The value to AND with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT16
+EFIAPI
+IoAnd16 (
+ IN UINTN Port,
+ IN UINT16 AndData
+ )
+{
+ return IoWrite16 (Port, (UINT16) (IoRead16 (Port) & AndData));
+}
+
+/**
+ Reads a 16-bit I/O port, performs a bitwise AND followed by a bitwise
+ inclusive OR, and writes the result back to the 16-bit I/O port.
+
+ Reads the 16-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, performs a bitwise OR
+ between the result of the AND operation and the value specified by OrData,
+ and writes the result to the 16-bit I/O port specified by Port. The value
+ written to the I/O port is returned. This function must guarantee that all
+ I/O read and write operations are serialized.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param AndData The value to AND with the read value from the I/O port.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT16
+EFIAPI
+IoAndThenOr16 (
+ IN UINTN Port,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return IoWrite16 (Port, (UINT16) ((IoRead16 (Port) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of an I/O register.
+
+ Reads the bit field in a 16-bit I/O register. The bit field is specified by
+ the StartBit and the EndBit. The value of the bit field is returned.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+
+ @return The value read.
+
+**/
+UINT16
+EFIAPI
+IoBitFieldRead16 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead16 (IoRead16 (Port), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to an I/O register.
+
+ Writes Value to the bit field of the I/O register. The bit field is specified
+ by the StartBit and the EndBit. All other bits in the destination I/O
+ register are preserved. The value written to the I/O port is returned. Extra
+ left bits in Value are stripped.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param Value New value of the bit field.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT16
+EFIAPI
+IoBitFieldWrite16 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 Value
+ )
+{
+ return IoWrite16 (
+ Port,
+ BitFieldWrite16 (IoRead16 (Port), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit port, performs a bitwise OR, and writes the
+ result back to the bit field in the 16-bit port.
+
+ Reads the 16-bit I/O port specified by Port, performs a bitwise OR
+ between the read result and the value specified by OrData, and writes the
+ result to the 16-bit I/O port specified by Port. The value written to the I/O
+ port is returned. This function must guarantee that all I/O read and write
+ operations are serialized. Extra left bits in OrData are stripped.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param OrData The value to OR with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT16
+EFIAPI
+IoBitFieldOr16 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 OrData
+ )
+{
+ return IoWrite16 (
+ Port,
+ BitFieldOr16 (IoRead16 (Port), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit port, performs a bitwise AND, and writes the
+ result back to the bit field in the 16-bit port.
+
+ Reads the 16-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, and writes the result to
+ the 16-bit I/O port specified by Port. The value written to the I/O port is
+ returned. This function must guarantee that all I/O read and write operations
+ are serialized. Extra left bits in AndData are stripped.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT16
+EFIAPI
+IoBitFieldAnd16 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData
+ )
+{
+ return IoWrite16 (
+ Port,
+ BitFieldAnd16 (IoRead16 (Port), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit port, performs a bitwise AND followed by a
+ bitwise OR, and writes the result back to the bit field in the
+ 16-bit port.
+
+ Reads the 16-bit I/O port specified by Port, performs a bitwise AND followed
+ by a bitwise OR between the read result and the value specified by
+ AndData, and writes the result to the 16-bit I/O port specified by Port. The
+ value written to the I/O port is returned. This function must guarantee that
+ all I/O read and write operations are serialized. Extra left bits in both
+ AndData and OrData are stripped.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with the read value from the I/O port.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT16
+EFIAPI
+IoBitFieldAndThenOr16 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return IoWrite16 (
+ Port,
+ BitFieldAndThenOr16 (IoRead16 (Port), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 32-bit I/O port, performs a bitwise OR, and writes the
+ result back to the 32-bit I/O port.
+
+ Reads the 32-bit I/O port specified by Port, performs a bitwise OR
+ between the read result and the value specified by OrData, and writes the
+ result to the 32-bit I/O port specified by Port. The value written to the I/O
+ port is returned. This function must guarantee that all I/O read and write
+ operations are serialized.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param OrData The value to OR with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT32
+EFIAPI
+IoOr32 (
+ IN UINTN Port,
+ IN UINT32 OrData
+ )
+{
+ return IoWrite32 (Port, IoRead32 (Port) | OrData);
+}
+
+/**
+ Reads a 32-bit I/O port, performs a bitwise AND, and writes the result back
+ to the 32-bit I/O port.
+
+ Reads the 32-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, and writes the result to
+ the 32-bit I/O port specified by Port. The value written to the I/O port is
+ returned. This function must guarantee that all I/O read and write operations
+ are serialized.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param AndData The value to AND with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT32
+EFIAPI
+IoAnd32 (
+ IN UINTN Port,
+ IN UINT32 AndData
+ )
+{
+ return IoWrite32 (Port, IoRead32 (Port) & AndData);
+}
+
+/**
+ Reads a 32-bit I/O port, performs a bitwise AND followed by a bitwise
+ inclusive OR, and writes the result back to the 32-bit I/O port.
+
+ Reads the 32-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, performs a bitwise OR
+ between the result of the AND operation and the value specified by OrData,
+ and writes the result to the 32-bit I/O port specified by Port. The value
+ written to the I/O port is returned. This function must guarantee that all
+ I/O read and write operations are serialized.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param AndData The value to AND with the read value from the I/O port.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT32
+EFIAPI
+IoAndThenOr32 (
+ IN UINTN Port,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return IoWrite32 (Port, (IoRead32 (Port) & AndData) | OrData);
+}
+
+/**
+ Reads a bit field of an I/O register.
+
+ Reads the bit field in a 32-bit I/O register. The bit field is specified by
+ the StartBit and the EndBit. The value of the bit field is returned.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+
+ @return The value read.
+
+**/
+UINT32
+EFIAPI
+IoBitFieldRead32 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead32 (IoRead32 (Port), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to an I/O register.
+
+ Writes Value to the bit field of the I/O register. The bit field is specified
+ by the StartBit and the EndBit. All other bits in the destination I/O
+ register are preserved. The value written to the I/O port is returned. Extra
+ left bits in Value are stripped.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param Value New value of the bit field.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT32
+EFIAPI
+IoBitFieldWrite32 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 Value
+ )
+{
+ return IoWrite32 (
+ Port,
+ BitFieldWrite32 (IoRead32 (Port), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit port, performs a bitwise OR, and writes the
+ result back to the bit field in the 32-bit port.
+
+ Reads the 32-bit I/O port specified by Port, performs a bitwise OR
+ between the read result and the value specified by OrData, and writes the
+ result to the 32-bit I/O port specified by Port. The value written to the I/O
+ port is returned. This function must guarantee that all I/O read and write
+ operations are serialized. Extra left bits in OrData are stripped.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param OrData The value to OR with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT32
+EFIAPI
+IoBitFieldOr32 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 OrData
+ )
+{
+ return IoWrite32 (
+ Port,
+ BitFieldOr32 (IoRead32 (Port), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit port, performs a bitwise AND, and writes the
+ result back to the bit field in the 32-bit port.
+
+ Reads the 32-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, and writes the result to
+ the 32-bit I/O port specified by Port. The value written to the I/O port is
+ returned. This function must guarantee that all I/O read and write operations
+ are serialized. Extra left bits in AndData are stripped.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT32
+EFIAPI
+IoBitFieldAnd32 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData
+ )
+{
+ return IoWrite32 (
+ Port,
+ BitFieldAnd32 (IoRead32 (Port), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit port, performs a bitwise AND followed by a
+ bitwise OR, and writes the result back to the bit field in the
+ 32-bit port.
+
+ Reads the 32-bit I/O port specified by Port, performs a bitwise AND followed
+ by a bitwise OR between the read result and the value specified by
+ AndData, and writes the result to the 32-bit I/O port specified by Port. The
+ value written to the I/O port is returned. This function must guarantee that
+ all I/O read and write operations are serialized. Extra left bits in both
+ AndData and OrData are stripped.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with the read value from the I/O port.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT32
+EFIAPI
+IoBitFieldAndThenOr32 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return IoWrite32 (
+ Port,
+ BitFieldAndThenOr32 (IoRead32 (Port), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 64-bit I/O port, performs a bitwise OR, and writes the
+ result back to the 64-bit I/O port.
+
+ Reads the 64-bit I/O port specified by Port, performs a bitwise OR
+ between the read result and the value specified by OrData, and writes the
+ result to the 64-bit I/O port specified by Port. The value written to the I/O
+ port is returned. This function must guarantee that all I/O read and write
+ operations are serialized.
+
+ If 64-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param OrData The value to OR with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT64
+EFIAPI
+IoOr64 (
+ IN UINTN Port,
+ IN UINT64 OrData
+ )
+{
+ return IoWrite64 (Port, IoRead64 (Port) | OrData);
+}
+
+/**
+ Reads a 64-bit I/O port, performs a bitwise AND, and writes the result back
+ to the 64-bit I/O port.
+
+ Reads the 64-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, and writes the result to
+ the 64-bit I/O port specified by Port. The value written to the I/O port is
+ returned. This function must guarantee that all I/O read and write operations
+ are serialized.
+
+ If 64-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param AndData The value to AND with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT64
+EFIAPI
+IoAnd64 (
+ IN UINTN Port,
+ IN UINT64 AndData
+ )
+{
+ return IoWrite64 (Port, IoRead64 (Port) & AndData);
+}
+
+/**
+ Reads a 64-bit I/O port, performs a bitwise AND followed by a bitwise
+ inclusive OR, and writes the result back to the 64-bit I/O port.
+
+ Reads the 64-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, performs a bitwise OR
+ between the result of the AND operation and the value specified by OrData,
+ and writes the result to the 64-bit I/O port specified by Port. The value
+ written to the I/O port is returned. This function must guarantee that all
+ I/O read and write operations are serialized.
+
+ If 64-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param AndData The value to AND with the read value from the I/O port.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT64
+EFIAPI
+IoAndThenOr64 (
+ IN UINTN Port,
+ IN UINT64 AndData,
+ IN UINT64 OrData
+ )
+{
+ return IoWrite64 (Port, (IoRead64 (Port) & AndData) | OrData);
+}
+
+/**
+ Reads a bit field of an I/O register.
+
+ Reads the bit field in a 64-bit I/O register. The bit field is specified by
+ the StartBit and the EndBit. The value of the bit field is returned.
+
+ If 64-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 63, then ASSERT().
+ If EndBit is greater than 63, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..63.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..63.
+
+ @return The value read.
+
+**/
+UINT64
+EFIAPI
+IoBitFieldRead64 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead64 (IoRead64 (Port), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to an I/O register.
+
+ Writes Value to the bit field of the I/O register. The bit field is specified
+ by the StartBit and the EndBit. All other bits in the destination I/O
+ register are preserved. The value written to the I/O port is returned. Extra
+ left bits in Value are stripped.
+
+ If 64-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 63, then ASSERT().
+ If EndBit is greater than 63, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..63.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..63.
+ @param Value New value of the bit field.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT64
+EFIAPI
+IoBitFieldWrite64 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT64 Value
+ )
+{
+ return IoWrite64 (
+ Port,
+ BitFieldWrite64 (IoRead64 (Port), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 64-bit port, performs a bitwise OR, and writes the
+ result back to the bit field in the 64-bit port.
+
+ Reads the 64-bit I/O port specified by Port, performs a bitwise OR
+ between the read result and the value specified by OrData, and writes the
+ result to the 64-bit I/O port specified by Port. The value written to the I/O
+ port is returned. This function must guarantee that all I/O read and write
+ operations are serialized. Extra left bits in OrData are stripped.
+
+ If 64-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 63, then ASSERT().
+ If EndBit is greater than 63, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..63.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..63.
+ @param OrData The value to OR with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT64
+EFIAPI
+IoBitFieldOr64 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT64 OrData
+ )
+{
+ return IoWrite64 (
+ Port,
+ BitFieldOr64 (IoRead64 (Port), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 64-bit port, performs a bitwise AND, and writes the
+ result back to the bit field in the 64-bit port.
+
+ Reads the 64-bit I/O port specified by Port, performs a bitwise AND between
+ the read result and the value specified by AndData, and writes the result to
+ the 64-bit I/O port specified by Port. The value written to the I/O port is
+ returned. This function must guarantee that all I/O read and write operations
+ are serialized. Extra left bits in AndData are stripped.
+
+ If 64-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 63, then ASSERT().
+ If EndBit is greater than 63, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..63.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..63.
+ @param AndData The value to AND with the read value from the I/O port.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT64
+EFIAPI
+IoBitFieldAnd64 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT64 AndData
+ )
+{
+ return IoWrite64 (
+ Port,
+ BitFieldAnd64 (IoRead64 (Port), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 64-bit port, performs a bitwise AND followed by a
+ bitwise OR, and writes the result back to the bit field in the
+ 64-bit port.
+
+ Reads the 64-bit I/O port specified by Port, performs a bitwise AND followed
+ by a bitwise OR between the read result and the value specified by
+ AndData, and writes the result to the 64-bit I/O port specified by Port. The
+ value written to the I/O port is returned. This function must guarantee that
+ all I/O read and write operations are serialized. Extra left bits in both
+ AndData and OrData are stripped.
+
+ If 64-bit I/O port operations are not supported, then ASSERT().
+ If StartBit is greater than 63, then ASSERT().
+ If EndBit is greater than 63, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..63.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..63.
+ @param AndData The value to AND with the read value from the I/O port.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the I/O port.
+
+**/
+UINT64
+EFIAPI
+IoBitFieldAndThenOr64 (
+ IN UINTN Port,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT64 AndData,
+ IN UINT64 OrData
+ )
+{
+ return IoWrite64 (
+ Port,
+ BitFieldAndThenOr64 (IoRead64 (Port), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads an 8-bit MMIO register, performs a bitwise OR, and writes the
+ result back to the 8-bit MMIO register.
+
+ Reads the 8-bit MMIO register specified by Address, performs a bitwise
+ inclusive OR between the read result and the value specified by OrData, and
+ writes the result to the 8-bit MMIO register specified by Address. The value
+ written to the MMIO register is returned. This function must guarantee that
+ all MMIO read and write operations are serialized.
+
+ If 8-bit MMIO register operations are not supported, then ASSERT().
+
+ @param Address The MMIO register to write.
+ @param OrData The value to OR with the read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT8
+EFIAPI
+MmioOr8 (
+ IN UINTN Address,
+ IN UINT8 OrData
+ )
+{
+ return MmioWrite8 (Address, (UINT8) (MmioRead8 (Address) | OrData));
+}
+
+/**
+ Reads an 8-bit MMIO register, performs a bitwise AND, and writes the result
+ back to the 8-bit MMIO register.
+
+ Reads the 8-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, and writes the
+ result to the 8-bit MMIO register specified by Address. The value written to
+ the MMIO register is returned. This function must guarantee that all MMIO
+ read and write operations are serialized.
+
+ If 8-bit MMIO register operations are not supported, then ASSERT().
+
+ @param Address The MMIO register to write.
+ @param AndData The value to AND with the read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT8
+EFIAPI
+MmioAnd8 (
+ IN UINTN Address,
+ IN UINT8 AndData
+ )
+{
+ return MmioWrite8 (Address, (UINT8) (MmioRead8 (Address) & AndData));
+}
+
+/**
+ Reads an 8-bit MMIO register, performs a bitwise AND followed by a bitwise
+ inclusive OR, and writes the result back to the 8-bit MMIO register.
+
+ Reads the 8-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, performs a
+ bitwise OR between the result of the AND operation and the value specified by
+ OrData, and writes the result to the 8-bit MMIO register specified by
+ Address. The value written to the MMIO register is returned. This function
+ must guarantee that all MMIO read and write operations are serialized.
+
+ If 8-bit MMIO register operations are not supported, then ASSERT().
+
+
+ @param Address The MMIO register to write.
+ @param AndData The value to AND with the read value from the MMIO register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT8
+EFIAPI
+MmioAndThenOr8 (
+ IN UINTN Address,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return MmioWrite8 (Address, (UINT8) ((MmioRead8 (Address) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of a MMIO register.
+
+ Reads the bit field in an 8-bit MMIO register. The bit field is specified by
+ the StartBit and the EndBit. The value of the bit field is returned.
+
+ If 8-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+
+ @return The value read.
+
+**/
+UINT8
+EFIAPI
+MmioBitFieldRead8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead8 (MmioRead8 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a MMIO register.
+
+ Writes Value to the bit field of the MMIO register. The bit field is
+ specified by the StartBit and the EndBit. All other bits in the destination
+ MMIO register are preserved. The new value of the 8-bit register is returned.
+
+ If 8-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param Value New value of the bit field.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT8
+EFIAPI
+MmioBitFieldWrite8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 Value
+ )
+{
+ return MmioWrite8 (
+ Address,
+ BitFieldWrite8 (MmioRead8 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit MMIO register, performs a bitwise OR, and
+ writes the result back to the bit field in the 8-bit MMIO register.
+
+ Reads the 8-bit MMIO register specified by Address, performs a bitwise
+ inclusive OR between the read result and the value specified by OrData, and
+ writes the result to the 8-bit MMIO register specified by Address. The value
+ written to the MMIO register is returned. This function must guarantee that
+ all MMIO read and write operations are serialized. Extra left bits in OrData
+ are stripped.
+
+ If 8-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param OrData The value to OR with read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT8
+EFIAPI
+MmioBitFieldOr8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 OrData
+ )
+{
+ return MmioWrite8 (
+ Address,
+ BitFieldOr8 (MmioRead8 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit MMIO register, performs a bitwise AND, and
+ writes the result back to the bit field in the 8-bit MMIO register.
+
+ Reads the 8-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, and writes the
+ result to the 8-bit MMIO register specified by Address. The value written to
+ the MMIO register is returned. This function must guarantee that all MMIO
+ read and write operations are serialized. Extra left bits in AndData are
+ stripped.
+
+ If 8-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT8
+EFIAPI
+MmioBitFieldAnd8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData
+ )
+{
+ return MmioWrite8 (
+ Address,
+ BitFieldAnd8 (MmioRead8 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit MMIO register, performs a bitwise AND followed
+ by a bitwise OR, and writes the result back to the bit field in the
+ 8-bit MMIO register.
+
+ Reads the 8-bit MMIO register specified by Address, performs a bitwise AND
+ followed by a bitwise OR between the read result and the value
+ specified by AndData, and writes the result to the 8-bit MMIO register
+ specified by Address. The value written to the MMIO register is returned.
+ This function must guarantee that all MMIO read and write operations are
+ serialized. Extra left bits in both AndData and OrData are stripped.
+
+ If 8-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with read value from the MMIO register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT8
+EFIAPI
+MmioBitFieldAndThenOr8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return MmioWrite8 (
+ Address,
+ BitFieldAndThenOr8 (MmioRead8 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 16-bit MMIO register, performs a bitwise OR, and writes the
+ result back to the 16-bit MMIO register.
+
+ Reads the 16-bit MMIO register specified by Address, performs a bitwise
+ inclusive OR between the read result and the value specified by OrData, and
+ writes the result to the 16-bit MMIO register specified by Address. The value
+ written to the MMIO register is returned. This function must guarantee that
+ all MMIO read and write operations are serialized.
+
+ If 16-bit MMIO register operations are not supported, then ASSERT().
+
+ @param Address The MMIO register to write.
+ @param OrData The value to OR with the read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT16
+EFIAPI
+MmioOr16 (
+ IN UINTN Address,
+ IN UINT16 OrData
+ )
+{
+ return MmioWrite16 (Address, (UINT16) (MmioRead16 (Address) | OrData));
+}
+
+/**
+ Reads a 16-bit MMIO register, performs a bitwise AND, and writes the result
+ back to the 16-bit MMIO register.
+
+ Reads the 16-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, and writes the
+ result to the 16-bit MMIO register specified by Address. The value written to
+ the MMIO register is returned. This function must guarantee that all MMIO
+ read and write operations are serialized.
+
+ If 16-bit MMIO register operations are not supported, then ASSERT().
+
+ @param Address The MMIO register to write.
+ @param AndData The value to AND with the read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT16
+EFIAPI
+MmioAnd16 (
+ IN UINTN Address,
+ IN UINT16 AndData
+ )
+{
+ return MmioWrite16 (Address, (UINT16) (MmioRead16 (Address) & AndData));
+}
+
+/**
+ Reads a 16-bit MMIO register, performs a bitwise AND followed by a bitwise
+ inclusive OR, and writes the result back to the 16-bit MMIO register.
+
+ Reads the 16-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, performs a
+ bitwise OR between the result of the AND operation and the value specified by
+ OrData, and writes the result to the 16-bit MMIO register specified by
+ Address. The value written to the MMIO register is returned. This function
+ must guarantee that all MMIO read and write operations are serialized.
+
+ If 16-bit MMIO register operations are not supported, then ASSERT().
+
+
+ @param Address The MMIO register to write.
+ @param AndData The value to AND with the read value from the MMIO register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT16
+EFIAPI
+MmioAndThenOr16 (
+ IN UINTN Address,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return MmioWrite16 (Address, (UINT16) ((MmioRead16 (Address) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of a MMIO register.
+
+ Reads the bit field in a 16-bit MMIO register. The bit field is specified by
+ the StartBit and the EndBit. The value of the bit field is returned.
+
+ If 16-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+
+ @return The value read.
+
+**/
+UINT16
+EFIAPI
+MmioBitFieldRead16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead16 (MmioRead16 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a MMIO register.
+
+ Writes Value to the bit field of the MMIO register. The bit field is
+ specified by the StartBit and the EndBit. All other bits in the destination
+ MMIO register are preserved. The new value of the 16-bit register is returned.
+
+ If 16-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param Value New value of the bit field.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT16
+EFIAPI
+MmioBitFieldWrite16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 Value
+ )
+{
+ return MmioWrite16 (
+ Address,
+ BitFieldWrite16 (MmioRead16 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit MMIO register, performs a bitwise OR, and
+ writes the result back to the bit field in the 16-bit MMIO register.
+
+ Reads the 16-bit MMIO register specified by Address, performs a bitwise
+ inclusive OR between the read result and the value specified by OrData, and
+ writes the result to the 16-bit MMIO register specified by Address. The value
+ written to the MMIO register is returned. This function must guarantee that
+ all MMIO read and write operations are serialized. Extra left bits in OrData
+ are stripped.
+
+ If 16-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param OrData The value to OR with read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT16
+EFIAPI
+MmioBitFieldOr16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 OrData
+ )
+{
+ return MmioWrite16 (
+ Address,
+ BitFieldOr16 (MmioRead16 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit MMIO register, performs a bitwise AND, and
+ writes the result back to the bit field in the 16-bit MMIO register.
+
+ Reads the 16-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, and writes the
+ result to the 16-bit MMIO register specified by Address. The value written to
+ the MMIO register is returned. This function must guarantee that all MMIO
+ read and write operations are serialized. Extra left bits in AndData are
+ stripped.
+
+ If 16-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT16
+EFIAPI
+MmioBitFieldAnd16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData
+ )
+{
+ return MmioWrite16 (
+ Address,
+ BitFieldAnd16 (MmioRead16 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit MMIO register, performs a bitwise AND followed
+ by a bitwise OR, and writes the result back to the bit field in the
+ 16-bit MMIO register.
+
+ Reads the 16-bit MMIO register specified by Address, performs a bitwise AND
+ followed by a bitwise OR between the read result and the value
+ specified by AndData, and writes the result to the 16-bit MMIO register
+ specified by Address. The value written to the MMIO register is returned.
+ This function must guarantee that all MMIO read and write operations are
+ serialized. Extra left bits in both AndData and OrData are stripped.
+
+ If 16-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with read value from the MMIO register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT16
+EFIAPI
+MmioBitFieldAndThenOr16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return MmioWrite16 (
+ Address,
+ BitFieldAndThenOr16 (MmioRead16 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 32-bit MMIO register, performs a bitwise OR, and writes the
+ result back to the 32-bit MMIO register.
+
+ Reads the 32-bit MMIO register specified by Address, performs a bitwise
+ inclusive OR between the read result and the value specified by OrData, and
+ writes the result to the 32-bit MMIO register specified by Address. The value
+ written to the MMIO register is returned. This function must guarantee that
+ all MMIO read and write operations are serialized.
+
+ If 32-bit MMIO register operations are not supported, then ASSERT().
+
+ @param Address The MMIO register to write.
+ @param OrData The value to OR with the read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT32
+EFIAPI
+MmioOr32 (
+ IN UINTN Address,
+ IN UINT32 OrData
+ )
+{
+ return MmioWrite32 (Address, MmioRead32 (Address) | OrData);
+}
+
+/**
+ Reads a 32-bit MMIO register, performs a bitwise AND, and writes the result
+ back to the 32-bit MMIO register.
+
+ Reads the 32-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, and writes the
+ result to the 32-bit MMIO register specified by Address. The value written to
+ the MMIO register is returned. This function must guarantee that all MMIO
+ read and write operations are serialized.
+
+ If 32-bit MMIO register operations are not supported, then ASSERT().
+
+ @param Address The MMIO register to write.
+ @param AndData The value to AND with the read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT32
+EFIAPI
+MmioAnd32 (
+ IN UINTN Address,
+ IN UINT32 AndData
+ )
+{
+ return MmioWrite32 (Address, MmioRead32 (Address) & AndData);
+}
+
+/**
+ Reads a 32-bit MMIO register, performs a bitwise AND followed by a bitwise
+ inclusive OR, and writes the result back to the 32-bit MMIO register.
+
+ Reads the 32-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, performs a
+ bitwise OR between the result of the AND operation and the value specified by
+ OrData, and writes the result to the 32-bit MMIO register specified by
+ Address. The value written to the MMIO register is returned. This function
+ must guarantee that all MMIO read and write operations are serialized.
+
+ If 32-bit MMIO register operations are not supported, then ASSERT().
+
+
+ @param Address The MMIO register to write.
+ @param AndData The value to AND with the read value from the MMIO register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT32
+EFIAPI
+MmioAndThenOr32 (
+ IN UINTN Address,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return MmioWrite32 (Address, (MmioRead32 (Address) & AndData) | OrData);
+}
+
+/**
+ Reads a bit field of a MMIO register.
+
+ Reads the bit field in a 32-bit MMIO register. The bit field is specified by
+ the StartBit and the EndBit. The value of the bit field is returned.
+
+ If 32-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+
+ @return The value read.
+
+**/
+UINT32
+EFIAPI
+MmioBitFieldRead32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead32 (MmioRead32 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a MMIO register.
+
+ Writes Value to the bit field of the MMIO register. The bit field is
+ specified by the StartBit and the EndBit. All other bits in the destination
+ MMIO register are preserved. The new value of the 32-bit register is returned.
+
+ If 32-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param Value New value of the bit field.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT32
+EFIAPI
+MmioBitFieldWrite32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 Value
+ )
+{
+ return MmioWrite32 (
+ Address,
+ BitFieldWrite32 (MmioRead32 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit MMIO register, performs a bitwise OR, and
+ writes the result back to the bit field in the 32-bit MMIO register.
+
+ Reads the 32-bit MMIO register specified by Address, performs a bitwise
+ inclusive OR between the read result and the value specified by OrData, and
+ writes the result to the 32-bit MMIO register specified by Address. The value
+ written to the MMIO register is returned. This function must guarantee that
+ all MMIO read and write operations are serialized. Extra left bits in OrData
+ are stripped.
+
+ If 32-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param OrData The value to OR with read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT32
+EFIAPI
+MmioBitFieldOr32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 OrData
+ )
+{
+ return MmioWrite32 (
+ Address,
+ BitFieldOr32 (MmioRead32 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit MMIO register, performs a bitwise AND, and
+ writes the result back to the bit field in the 32-bit MMIO register.
+
+ Reads the 32-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, and writes the
+ result to the 32-bit MMIO register specified by Address. The value written to
+ the MMIO register is returned. This function must guarantee that all MMIO
+ read and write operations are serialized. Extra left bits in AndData are
+ stripped.
+
+ If 32-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT32
+EFIAPI
+MmioBitFieldAnd32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData
+ )
+{
+ return MmioWrite32 (
+ Address,
+ BitFieldAnd32 (MmioRead32 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit MMIO register, performs a bitwise AND followed
+ by a bitwise OR, and writes the result back to the bit field in the
+ 32-bit MMIO register.
+
+ Reads the 32-bit MMIO register specified by Address, performs a bitwise AND
+ followed by a bitwise OR between the read result and the value
+ specified by AndData, and writes the result to the 32-bit MMIO register
+ specified by Address. The value written to the MMIO register is returned.
+ This function must guarantee that all MMIO read and write operations are
+ serialized. Extra left bits in both AndData and OrData are stripped.
+
+ If 32-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with read value from the MMIO register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT32
+EFIAPI
+MmioBitFieldAndThenOr32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return MmioWrite32 (
+ Address,
+ BitFieldAndThenOr32 (MmioRead32 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 64-bit MMIO register, performs a bitwise OR, and writes the
+ result back to the 64-bit MMIO register.
+
+ Reads the 64-bit MMIO register specified by Address, performs a bitwise
+ inclusive OR between the read result and the value specified by OrData, and
+ writes the result to the 64-bit MMIO register specified by Address. The value
+ written to the MMIO register is returned. This function must guarantee that
+ all MMIO read and write operations are serialized.
+
+ If 64-bit MMIO register operations are not supported, then ASSERT().
+
+ @param Address The MMIO register to write.
+ @param OrData The value to OR with the read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT64
+EFIAPI
+MmioOr64 (
+ IN UINTN Address,
+ IN UINT64 OrData
+ )
+{
+ return MmioWrite64 (Address, MmioRead64 (Address) | OrData);
+}
+
+/**
+ Reads a 64-bit MMIO register, performs a bitwise AND, and writes the result
+ back to the 64-bit MMIO register.
+
+ Reads the 64-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, and writes the
+ result to the 64-bit MMIO register specified by Address. The value written to
+ the MMIO register is returned. This function must guarantee that all MMIO
+ read and write operations are serialized.
+
+ If 64-bit MMIO register operations are not supported, then ASSERT().
+
+ @param Address The MMIO register to write.
+ @param AndData The value to AND with the read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT64
+EFIAPI
+MmioAnd64 (
+ IN UINTN Address,
+ IN UINT64 AndData
+ )
+{
+ return MmioWrite64 (Address, MmioRead64 (Address) & AndData);
+}
+
+/**
+ Reads a 64-bit MMIO register, performs a bitwise AND followed by a bitwise
+ inclusive OR, and writes the result back to the 64-bit MMIO register.
+
+ Reads the 64-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, performs a
+ bitwise OR between the result of the AND operation and the value specified by
+ OrData, and writes the result to the 64-bit MMIO register specified by
+ Address. The value written to the MMIO register is returned. This function
+ must guarantee that all MMIO read and write operations are serialized.
+
+ If 64-bit MMIO register operations are not supported, then ASSERT().
+
+
+ @param Address The MMIO register to write.
+ @param AndData The value to AND with the read value from the MMIO register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT64
+EFIAPI
+MmioAndThenOr64 (
+ IN UINTN Address,
+ IN UINT64 AndData,
+ IN UINT64 OrData
+ )
+{
+ return MmioWrite64 (Address, (MmioRead64 (Address) & AndData) | OrData);
+}
+
+/**
+ Reads a bit field of a MMIO register.
+
+ Reads the bit field in a 64-bit MMIO register. The bit field is specified by
+ the StartBit and the EndBit. The value of the bit field is returned.
+
+ If 64-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 63, then ASSERT().
+ If EndBit is greater than 63, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..63.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..63.
+
+ @return The value read.
+
+**/
+UINT64
+EFIAPI
+MmioBitFieldRead64 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead64 (MmioRead64 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a MMIO register.
+
+ Writes Value to the bit field of the MMIO register. The bit field is
+ specified by the StartBit and the EndBit. All other bits in the destination
+ MMIO register are preserved. The new value of the 64-bit register is returned.
+
+ If 64-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 63, then ASSERT().
+ If EndBit is greater than 63, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..63.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..63.
+ @param Value New value of the bit field.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT64
+EFIAPI
+MmioBitFieldWrite64 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT64 Value
+ )
+{
+ return MmioWrite64 (
+ Address,
+ BitFieldWrite64 (MmioRead64 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 64-bit MMIO register, performs a bitwise OR, and
+ writes the result back to the bit field in the 64-bit MMIO register.
+
+ Reads the 64-bit MMIO register specified by Address, performs a bitwise
+ inclusive OR between the read result and the value specified by OrData, and
+ writes the result to the 64-bit MMIO register specified by Address. The value
+ written to the MMIO register is returned. This function must guarantee that
+ all MMIO read and write operations are serialized. Extra left bits in OrData
+ are stripped.
+
+ If 64-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 63, then ASSERT().
+ If EndBit is greater than 63, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..63.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..63.
+ @param OrData The value to OR with read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT64
+EFIAPI
+MmioBitFieldOr64 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT64 OrData
+ )
+{
+ return MmioWrite64 (
+ Address,
+ BitFieldOr64 (MmioRead64 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 64-bit MMIO register, performs a bitwise AND, and
+ writes the result back to the bit field in the 64-bit MMIO register.
+
+ Reads the 64-bit MMIO register specified by Address, performs a bitwise AND
+ between the read result and the value specified by AndData, and writes the
+ result to the 64-bit MMIO register specified by Address. The value written to
+ the MMIO register is returned. This function must guarantee that all MMIO
+ read and write operations are serialized. Extra left bits in AndData are
+ stripped.
+
+ If 64-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 63, then ASSERT().
+ If EndBit is greater than 63, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..63.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..63.
+ @param AndData The value to AND with read value from the MMIO register.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT64
+EFIAPI
+MmioBitFieldAnd64 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT64 AndData
+ )
+{
+ return MmioWrite64 (
+ Address,
+ BitFieldAnd64 (MmioRead64 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 64-bit MMIO register, performs a bitwise AND followed
+ by a bitwise OR, and writes the result back to the bit field in the
+ 64-bit MMIO register.
+
+ Reads the 64-bit MMIO register specified by Address, performs a bitwise AND
+ followed by a bitwise OR between the read result and the value
+ specified by AndData, and writes the result to the 64-bit MMIO register
+ specified by Address. The value written to the MMIO register is returned.
+ This function must guarantee that all MMIO read and write operations are
+ serialized. Extra left bits in both AndData and OrData are stripped.
+
+ If 64-bit MMIO register operations are not supported, then ASSERT().
+ If StartBit is greater than 63, then ASSERT().
+ If EndBit is greater than 63, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address MMIO register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..63.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..63.
+ @param AndData The value to AND with read value from the MMIO register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the MMIO register.
+
+**/
+UINT64
+EFIAPI
+MmioBitFieldAndThenOr64 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT64 AndData,
+ IN UINT64 OrData
+ )
+{
+ return MmioWrite64 (
+ Address,
+ BitFieldAndThenOr64 (MmioRead64 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
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