/** @file
Provide services to access I/O Ports and MMIO registers.
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
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.
**/
#ifndef __IO_LIB_H__
#define __IO_LIB_H__
/**
Macro that converts PCI Segment and I/O Port to an address that can be
passed to the I/O Library functions.
Computes an address that is compatible with the I/O Library functions.
The unused upper bits of Segment, and Port are stripped prior to the
generation of the address.
@param Segment PCI Segment number. Range 0..65535.
@param Port I/O Port number. Range 0..65535.
@return An address that the I/o Library functions need.
**/
#define IO_LIB_ADDRESS(Segment,Port) \
( ((Port) & 0xffff) | (((Segment) & 0xffff) << 16) )
/**
Reads an 8-bit I/O port.
Reads the 8-bit I/O port specified by Port. The 8-bit read value 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 read.
@return The value read.
**/
UINT8
EFIAPI
IoRead8 (
IN UINTN Port
);
/**
Writes an 8-bit I/O port.
Writes the 8-bit I/O port specified by Port with the value specified by Value
and returns Value. 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 Value The value to write to the I/O port.
@return The value written the I/O port.
**/
UINT8
EFIAPI
IoWrite8 (
IN UINTN Port,
IN UINT8 Value
);
/**
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
);
/**
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
);
/**
Reads an 8-bit I/O port, performs a bitwise AND followed by 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 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
);
/**
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
);
/**
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.
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().
If Value is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
Reads a 16-bit I/O port.
Reads the 16-bit I/O port specified by Port. The 16-bit read value 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().
If Port is not aligned on a 16-bit boundary, then ASSERT().
@param Port The I/O port to read.
@return The value read.
**/
UINT16
EFIAPI
IoRead16 (
IN UINTN Port
);
/**
Writes a 16-bit I/O port.
Writes the 16-bit I/O port specified by Port with the value specified by Value
and returns Value. 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().
If Port is not aligned on a 16-bit boundary, then ASSERT().
@param Port The I/O port to write.
@param Value The value to write to the I/O port.
@return The value written the I/O port.
**/
UINT16
EFIAPI
IoWrite16 (
IN UINTN Port,
IN UINT16 Value
);
/**
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().
If Port is not aligned on a 16-bit boundary, 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
);
/**
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().
If Port is not aligned on a 16-bit boundary, 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
);
/**
Reads a 16-bit I/O port, performs a bitwise AND followed by 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 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().
If Port is not aligned on a 16-bit boundary, 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
);
/**
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 Port is not aligned on a 16-bit boundary, 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
);
/**
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 Port is not aligned on a 16-bit boundary, 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().
If Value is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Port is not aligned on a 16-bit boundary, 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().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Port is not aligned on a 16-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Port is not aligned on a 16-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
Reads a 32-bit I/O port.
Reads the 32-bit I/O port specified by Port. The 32-bit read value 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().
If Port is not aligned on a 32-bit boundary, then ASSERT().
@param Port The I/O port to read.
@return The value read.
**/
UINT32
EFIAPI
IoRead32 (
IN UINTN Port
);
/**
Writes a 32-bit I/O port.
Writes the 32-bit I/O port specified by Port with the value specified by Value
and returns Value. 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().
If Port is not aligned on a 32-bit boundary, then ASSERT().
@param Port The I/O port to write.
@param Value The value to write to the I/O port.
@return The value written the I/O port.
**/
UINT32
EFIAPI
IoWrite32 (
IN UINTN Port,
IN UINT32 Value
);
/**
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().
If Port is not aligned on a 32-bit boundary, 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
);
/**
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().
If Port is not aligned on a 32-bit boundary, 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
);
/**
Reads a 32-bit I/O port, performs a bitwise AND followed by 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 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().
If Port is not aligned on a 32-bit boundary, 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
);
/**
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 Port is not aligned on a 32-bit boundary, 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
);
/**
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 Port is not aligned on a 32-bit boundary, 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().
If Value is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Port is not aligned on a 32-bit boundary, 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().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Port is not aligned on a 32-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Port is not aligned on a 32-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
Reads a 64-bit I/O port.
Reads the 64-bit I/O port specified by Port. The 64-bit read value 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().
If Port is not aligned on a 64-bit boundary, then ASSERT().
@param Port The I/O port to read.
@return The value read.
**/
UINT64
EFIAPI
IoRead64 (
IN UINTN Port
);
/**
Writes a 64-bit I/O port.
Writes the 64-bit I/O port specified by Port with the value specified by Value
and returns Value. 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().
If Port is not aligned on a 64-bit boundary, then ASSERT().
@param Port The I/O port to write.
@param Value The value to write to the I/O port.
@return The value written the I/O port.
**/
UINT64
EFIAPI
IoWrite64 (
IN UINTN Port,
IN UINT64 Value
);
/**
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().
If Port is not aligned on a 64-bit boundary, 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
);
/**
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().
If Port is not aligned on a 64-bit boundary, 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
);
/**
Reads a 64-bit I/O port, performs a bitwise AND followed by 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 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().
If Port is not aligned on a 64-bit boundary, 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
);
/**
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 Port is not aligned on a 64-bit boundary, 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
);
/**
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 Port is not aligned on a 64-bit boundary, 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().
If Value is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Port is not aligned on a 64-bit boundary, 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().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Port is not aligned on a 64-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Port is not aligned on a 64-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
Reads an 8-bit MMIO register.
Reads the 8-bit MMIO register specified by Address. The 8-bit read value 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 read.
@return The value read.
**/
UINT8
EFIAPI
MmioRead8 (
IN UINTN Address
);
/**
Writes an 8-bit MMIO register.
Writes the 8-bit MMIO register specified by Address with the value specified
by Value and returns Value. 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 Value The value to write to the MMIO register.
@return Value.
**/
UINT8
EFIAPI
MmioWrite8 (
IN UINTN Address,
IN UINT8 Value
);
/**
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
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
);
/**
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
);
/**
Reads an 8-bit MMIO register, performs a bitwise AND followed by 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 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
);
/**
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
);
/**
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().
If Value is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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
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().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
Reads a 16-bit MMIO register.
Reads the 16-bit MMIO register specified by Address. The 16-bit read value 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().
If Address is not aligned on a 16-bit boundary, then ASSERT().
@param Address The MMIO register to read.
@return The value read.
**/
UINT16
EFIAPI
MmioRead16 (
IN UINTN Address
);
/**
Writes a 16-bit MMIO register.
Writes the 16-bit MMIO register specified by Address with the value specified
by Value and returns Value. This function must guarantee that all MMIO read
and write operations are serialized.
If 16-bit MMIO register operations are not supported, then ASSERT().
If Address is not aligned on a 16-bit boundary, then ASSERT().
@param Address The MMIO register to write.
@param Value The value to write to the MMIO register.
@return Value.
**/
UINT16
EFIAPI
MmioWrite16 (
IN UINTN Address,
IN UINT16 Value
);
/**
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
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().
If Address is not aligned on a 16-bit boundary, 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
);
/**
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().
If Address is not aligned on a 16-bit boundary, 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
);
/**
Reads a 16-bit MMIO register, performs a bitwise AND followed by 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 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().
If Address is not aligned on a 16-bit boundary, 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
);
/**
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 Address is not aligned on a 16-bit boundary, 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
);
/**
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 Address is not aligned on a 16-bit boundary, 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().
If Value is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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
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 Address is not aligned on a 16-bit boundary, 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().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Address is not aligned on a 16-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Address is not aligned on a 16-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
Reads a 32-bit MMIO register.
Reads the 32-bit MMIO register specified by Address. The 32-bit read value 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().
If Address is not aligned on a 32-bit boundary, then ASSERT().
@param Address The MMIO register to read.
@return The value read.
**/
UINT32
EFIAPI
MmioRead32 (
IN UINTN Address
);
/**
Writes a 32-bit MMIO register.
Writes the 32-bit MMIO register specified by Address with the value specified
by Value and returns Value. This function must guarantee that all MMIO read
and write operations are serialized.
If 32-bit MMIO register operations are not supported, then ASSERT().
If Address is not aligned on a 32-bit boundary, then ASSERT().
@param Address The MMIO register to write.
@param Value The value to write to the MMIO register.
@return Value.
**/
UINT32
EFIAPI
MmioWrite32 (
IN UINTN Address,
IN UINT32 Value
);
/**
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
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().
If Address is not aligned on a 32-bit boundary, 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
);
/**
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().
If Address is not aligned on a 32-bit boundary, 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
);
/**
Reads a 32-bit MMIO register, performs a bitwise AND followed by 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 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().
If Address is not aligned on a 32-bit boundary, 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
);
/**
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 Address is not aligned on a 32-bit boundary, 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
);
/**
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 Address is not aligned on a 32-bit boundary, 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().
If Value is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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
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 Address is not aligned on a 32-bit boundary, 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().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Address is not aligned on a 32-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Address is not aligned on a 32-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
Reads a 64-bit MMIO register.
Reads the 64-bit MMIO register specified by Address. The 64-bit read value 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().
If Address is not aligned on a 64-bit boundary, then ASSERT().
@param Address The MMIO register to read.
@return The value read.
**/
UINT64
EFIAPI
MmioRead64 (
IN UINTN Address
);
/**
Writes a 64-bit MMIO register.
Writes the 64-bit MMIO register specified by Address with the value specified
by Value and returns Value. This function must guarantee that all MMIO read
and write operations are serialized.
If 64-bit MMIO register operations are not supported, then ASSERT().
If Address is not aligned on a 64-bit boundary, then ASSERT().
@param Address The MMIO register to write.
@param Value The value to write to the MMIO register.
**/
UINT64
EFIAPI
MmioWrite64 (
IN UINTN Address,
IN UINT64 Value
);
/**
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
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().
If Address is not aligned on a 64-bit boundary, 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
);
/**
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().
If Address is not aligned on a 64-bit boundary, 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
);
/**
Reads a 64-bit MMIO register, performs a bitwise AND followed by 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 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().
If Address is not aligned on a 64-bit boundary, 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
);
/**
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 Address is not aligned on a 64-bit boundary, 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
);
/**
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 Address is not aligned on a 64-bit boundary, 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().
If Value is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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
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 Address is not aligned on a 64-bit boundary, 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().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Address is not aligned on a 64-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
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 Address is not aligned on a 64-bit boundary, 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().
If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
If OrData is larger than the bitmask value range specified by StartBit and EndBit, 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
);
/**
Copy data from MMIO region to system memory by using 8-bit access.
Copy data from MMIO region specified by starting address StartAddress
to system memory specified by Buffer by using 8-bit access. The total
number of byte to be copied is specified by Length. Buffer is returned.
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied from.
@param Length The size, in bytes, of Buffer.
@param Buffer Pointer to a system memory buffer receiving the data read.
@return Buffer
**/
UINT8 *
EFIAPI
MmioReadBuffer8 (
IN UINTN StartAddress,
IN UINTN Length,
OUT UINT8 *Buffer
);
/**
Copy data from MMIO region to system memory by using 16-bit access.
Copy data from MMIO region specified by starting address StartAddress
to system memory specified by Buffer by using 16-bit access. The total
number of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 16-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Length is not aligned on a 16-bit boundary, then ASSERT().
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied from.
@param Length The size, in bytes, of Buffer.
@param Buffer Pointer to a system memory buffer receiving the data read.
@return Buffer
**/
UINT16 *
EFIAPI
MmioReadBuffer16 (
IN UINTN StartAddress,
IN UINTN Length,
OUT UINT16 *Buffer
);
/**
Copy data from MMIO region to system memory by using 32-bit access.
Copy data from MMIO region specified by starting address StartAddress
to system memory specified by Buffer by using 32-bit access. The total
number of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 32-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Length is not aligned on a 32-bit boundary, then ASSERT().
If Buffer is not aligned on a 32-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied from.
@param Length The size, in bytes, of Buffer.
@param Buffer Pointer to a system memory buffer receiving the data read.
@return Buffer
**/
UINT32 *
EFIAPI
MmioReadBuffer32 (
IN UINTN StartAddress,
IN UINTN Length,
OUT UINT32 *Buffer
);
/**
Copy data from MMIO region to system memory by using 64-bit access.
Copy data from MMIO region specified by starting address StartAddress
to system memory specified by Buffer by using 64-bit access. The total
number of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 64-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Length is not aligned on a 64-bit boundary, then ASSERT().
If Buffer is not aligned on a 64-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied from.
@param Length The size, in bytes, of Buffer.
@param Buffer Pointer to a system memory buffer receiving the data read.
@return Buffer
**/
UINT64 *
EFIAPI
MmioReadBuffer64 (
IN UINTN StartAddress,
IN UINTN Length,
OUT UINT64 *Buffer
);
/**
Copy data from system memory to MMIO region by using 8-bit access.
Copy data from system memory specified by Buffer to MMIO region specified
by starting address StartAddress by using 8-bit access. The total number
of byte to be copied is specified by Length. Buffer is returned.
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied to.
@param Length The size, in bytes, of Buffer.
@param Buffer Pointer to a system memory buffer containing the data to write.
@return Buffer
**/
UINT8 *
EFIAPI
MmioWriteBuffer8 (
IN UINTN StartAddress,
IN UINTN Length,
IN CONST UINT8 *Buffer
);
/**
Copy data from system memory to MMIO region by using 16-bit access.
Copy data from system memory specified by Buffer to MMIO region specified
by starting address StartAddress by using 16-bit access. The total number
of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 16-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
If Length is not aligned on a 16-bit boundary, then ASSERT().
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied to.
@param Length The size, in bytes, of Buffer.
@param Buffer Pointer to a system memory buffer containing the data to write.
@return Buffer
**/
UINT16 *
EFIAPI
MmioWriteBuffer16 (
IN UINTN StartAddress,
IN UINTN Length,
IN CONST UINT16 *Buffer
);
/**
Copy data from system memory to MMIO region by using 32-bit access.
Copy data from system memory specified by Buffer to MMIO region specified
by starting address StartAddress by using 32-bit access. The total number
of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 32-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
If Length is not aligned on a 32-bit boundary, then ASSERT().
If Buffer is not aligned on a 32-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied to.
@param Length The size, in bytes, of Buffer.
@param Buffer Pointer to a system memory buffer containing the data to write.
@return Buffer
**/
UINT32 *
EFIAPI
MmioWriteBuffer32 (
IN UINTN StartAddress,
IN UINTN Length,
IN CONST UINT32 *Buffer
);
/**
Copy data from system memory to MMIO region by using 64-bit access.
Copy data from system memory specified by Buffer to MMIO region specified
by starting address StartAddress by using 64-bit access. The total number
of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 64-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
If Length is not aligned on a 64-bit boundary, then ASSERT().
If Buffer is not aligned on a 64-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied to.
@param Length The size, in bytes, of Buffer.
@param Buffer Pointer to a system memory buffer containing the data to write.
@return Buffer
**/
UINT64 *
EFIAPI
MmioWriteBuffer64 (
IN UINTN StartAddress,
IN UINTN Length,
IN CONST UINT64 *Buffer
);
#endif