/** @file
The PCI configuration Library Services that carry out PCI configuration and enable
the PCI operations to be replayed during an S3 resume. This library class
maps directly on top of the PciLib class.
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 __S3_PCI_LIB_H__
#define __S3_PCI_LIB_H__
/**
Macro that converts PCI Bus, PCI Device, PCI Function and PCI Register to an
address that can be passed to the S3 PCI Library functions.
@param Bus The PCI Bus number. Range 0..255.
@param Device The PCI Device number. Range 0..31.
@param Function The PCI Function number. Range 0..7.
@param Register The PCI Register number. Range 0..255 for PCI. Range 0..4095
for PCI Express.
@return The encoded PCI address.
**/
#define S3_PCI_LIB_ADDRESS(Bus,Device,Function,Register) \
(((Register) & 0xfff) | (((Function) & 0x07) << 12) | (((Device) & 0x1f) << 15) | (((Bus) & 0xff) << 20))
/**
Reads and returns the 8-bit PCI configuration register specified by Address,
and saves the value in the S3 script to be replayed on S3 resume.
This function must guarantee that all PCI read and write operations are
serialized.
If Address > 0x0FFFFFFF, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@return The value read from the PCI configuration register.
**/
UINT8
EFIAPI
S3PciRead8 (
IN UINTN Address
);
/**
Writes an 8-bit PCI configuration register, and saves the value in the S3
script to be replayed on S3 resume.
Writes the 8-bit PCI configuration register specified by Address with the
value specified by Value. Value is returned. This function must guarantee
that all PCI read and write operations are serialized.
If Address > 0x0FFFFFFF, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] Value The value to write.
@return The value written to the PCI configuration register.
**/
UINT8
EFIAPI
S3PciWrite8 (
IN UINTN Address,
IN UINT8 Value
);
/**
Performs a bitwise OR of an 8-bit PCI configuration register with
an 8-bit value, and saves the value in the S3 script to be replayed on S3 resume.
Reads the 8-bit PCI configuration 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 PCI configuration register
specified by Address. The value written to the PCI configuration register is
returned. This function must guarantee that all PCI read and write operations
are serialized.
If Address > 0x0FFFFFFF, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] OrData The value to OR with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT8
EFIAPI
S3PciOr8 (
IN UINTN Address,
IN UINT8 OrData
);
/**
Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit
value, and saves the value in the S3 script to be replayed on S3 resume.
Reads the 8-bit PCI configuration 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 PCI configuration register specified by
Address. The value written to the PCI configuration register is returned.
This function must guarantee that all PCI read and write operations are
serialized.
If Address > 0x0FFFFFFF, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] AndData The value to AND with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT8
EFIAPI
S3PciAnd8 (
IN UINTN Address,
IN UINT8 AndData
);
/**
Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit
value, followed a bitwise OR with another 8-bit value, and saves
the value in the S3 script to be replayed on S3 resume.
Reads the 8-bit PCI configuration 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 PCI
configuration register specified by Address. The value written to the PCI
configuration register is returned. This function must guarantee that all PCI
read and write operations are serialized.
If Address > 0x0FFFFFFF, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] AndData The value to AND with the PCI configuration register.
@param[in] OrData The value to OR with the result of the AND operation.
@return The value written back to the PCI configuration register.
**/
UINT8
EFIAPI
S3PciAndThenOr8 (
IN UINTN Address,
IN UINT8 AndData,
IN UINT8 OrData
);
/**
Reads a bit field of a PCI configuration register, and saves the value in
the S3 script to be replayed on S3 resume.
Reads the bit field in an 8-bit PCI configuration register. The bit field is
specified by the StartBit and the EndBit. The value of the bit field is
returned.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to read.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..7.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..7.
@return The value of the bit field read from the PCI configuration register.
**/
UINT8
EFIAPI
S3PciBitFieldRead8 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit
);
/**
Writes a bit field to a PCI configuration register, and saves the value in
the S3 script to be replayed on S3 resume.
Writes Value to the bit field of the PCI configuration register. The bit
field is specified by the StartBit and the EndBit. All other bits in the
destination PCI configuration register are preserved. The new value of the
8-bit register is returned.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..7.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..7.
@param[in] Value New value of the bit field.
@return The value written back to the PCI configuration register.
**/
UINT8
EFIAPI
S3PciBitFieldWrite8 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT8 Value
);
/**
Reads a bit field in an 8-bit PCI configuration, performs a bitwise OR, and
writes the result back to the bit field in the 8-bit port, and saves the value
in the S3 script to be replayed on S3 resume.
Reads the 8-bit PCI configuration 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 PCI configuration register
specified by Address. The value written to the PCI configuration register is
returned. This function must guarantee that all PCI read and write operations
are serialized. Extra left bits in OrData are stripped.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..7.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..7.
@param[in] OrData The value to OR with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT8
EFIAPI
S3PciBitFieldOr8 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT8 OrData
);
/**
Reads a bit field in an 8-bit PCI configuration register, performs a bitwise
AND, and writes the result back to the bit field in the 8-bit register and
saves the value in the S3 script to be replayed on S3 resume.
Reads the 8-bit PCI configuration 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 PCI configuration register specified by
Address. The value written to the PCI configuration register is returned.
This function must guarantee that all PCI read and write operations are
serialized. Extra left bits in AndData are stripped.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..7.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..7.
@param[in] AndData The value to AND with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT8
EFIAPI
S3PciBitFieldAnd8 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT8 AndData
);
/**
Reads a bit field in an 8-bit Address, performs a bitwise AND followed by a
bitwise OR, and writes the result back to the bit field in the
8-bit port, and saves the value in the S3 script to be replayed on S3 resume.
Reads the 8-bit PCI configuration 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 PCI
configuration register specified by Address. The value written to the PCI
configuration register is returned. This function must guarantee that all PCI
read and write operations are serialized. Extra left bits in both AndData and
OrData are stripped.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..7.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..7.
@param[in] AndData The value to AND with the PCI configuration register.
@param[in] OrData The value to OR with the result of the AND operation.
@return The value written back to the PCI configuration register.
**/
UINT8
EFIAPI
S3PciBitFieldAndThenOr8 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT8 AndData,
IN UINT8 OrData
);
/**
Reads a 16-bit PCI configuration register, and saves the value in the S3
script to be replayed on S3 resume.
Reads and returns the 16-bit PCI configuration register specified by Address.
This function must guarantee that all PCI read and write operations are
serialized.
If Address > 0x0FFFFFFF, then ASSERT().
If Address is not aligned on a 16-bit boundary, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@return The read value from the PCI configuration register.
**/
UINT16
EFIAPI
S3PciRead16 (
IN UINTN Address
);
/**
Writes a 16-bit PCI configuration register, and saves the value in the S3
script to be replayed on S3 resume.
Writes the 16-bit PCI configuration register specified by Address with the
value specified by Value. Value is returned. This function must guarantee
that all PCI read and write operations are serialized.
If Address > 0x0FFFFFFF, then ASSERT().
If Address is not aligned on a 16-bit boundary, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] Value The value to write.
@return The value written to the PCI configuration register.
**/
UINT16
EFIAPI
S3PciWrite16 (
IN UINTN Address,
IN UINT16 Value
);
/**
Performs a bitwise OR of a 16-bit PCI configuration register with
a 16-bit value, and saves the value in the S3 script to be replayed on S3 resume.
Reads the 16-bit PCI configuration 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 PCI configuration register
specified by Address. The value written to the PCI configuration register is
returned. This function must guarantee that all PCI read and write operations
are serialized.
If Address > 0x0FFFFFFF, then ASSERT().
If Address is not aligned on a 16-bit boundary, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] OrData The value to OR with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT16
EFIAPI
S3PciOr16 (
IN UINTN Address,
IN UINT16 OrData
);
/**
Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit
value, and saves the value in the S3 script to be replayed on S3 resume.
Reads the 16-bit PCI configuration 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 PCI configuration register specified by
Address. The value written to the PCI configuration register is returned.
This function must guarantee that all PCI read and write operations are
serialized.
If Address > 0x0FFFFFFF, then ASSERT().
If Address is not aligned on a 16-bit boundary, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] AndData The value to AND with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT16
EFIAPI
S3PciAnd16 (
IN UINTN Address,
IN UINT16 AndData
);
/**
Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit
value, followed a bitwise OR with another 16-bit value, and saves
the value in the S3 script to be replayed on S3 resume.
Reads the 16-bit PCI configuration 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 PCI
configuration register specified by Address. The value written to the PCI
configuration register is returned. This function must guarantee that all PCI
read and write operations are serialized.
If Address > 0x0FFFFFFF, then ASSERT().
If Address is not aligned on a 16-bit boundary, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] AndData The value to AND with the PCI configuration register.
@param[in] OrData The value to OR with the result of the AND operation.
@return The value written back to the PCI configuration register.
**/
UINT16
EFIAPI
S3PciAndThenOr16 (
IN UINTN Address,
IN UINT16 AndData,
IN UINT16 OrData
);
/**
Reads a bit field of a PCI configuration register, and saves the value in
the S3 script to be replayed on S3 resume.
Reads the bit field in a 16-bit PCI configuration register. The bit field is
specified by the StartBit and the EndBit. The value of the bit field is
returned.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to read.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..15.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..15.
@return The value of the bit field read from the PCI configuration register.
**/
UINT16
EFIAPI
S3PciBitFieldRead16 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit
);
/**
Writes a bit field to a PCI configuration register, and saves the value in
the S3 script to be replayed on S3 resume.
Writes Value to the bit field of the PCI configuration register. The bit
field is specified by the StartBit and the EndBit. All other bits in the
destination PCI configuration register are preserved. The new value of the
16-bit register is returned.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..15.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..15.
@param[in] Value New value of the bit field.
@return The value written back to the PCI configuration register.
**/
UINT16
EFIAPI
S3PciBitFieldWrite16 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT16 Value
);
/**
Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR, and
writes the result back to the bit field in the 16-bit port, and saves the value
in the S3 script to be replayed on S3 resume.
Reads the 16-bit PCI configuration 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 PCI configuration register
specified by Address. The value written to the PCI configuration register is
returned. This function must guarantee that all PCI read and write operations
are serialized. Extra left bits in OrData are stripped.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..15.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..15.
@param[in] OrData The value to OR with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT16
EFIAPI
S3PciBitFieldOr16 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT16 OrData
);
/**
Reads a bit field in a 16-bit PCI configuration register, performs a bitwise
AND, and writes the result back to the bit field in the 16-bit register and
saves the value in the S3 script to be replayed on S3 resume.
Reads the 16-bit PCI configuration 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 PCI configuration register specified by
Address. The value written to the PCI configuration register is returned.
This function must guarantee that all PCI read and write operations are
serialized. Extra left bits in AndData are stripped.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..15.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..15.
@param[in] AndData The value to AND with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT16
EFIAPI
S3PciBitFieldAnd16 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT16 AndData
);
/**
Reads a bit field in a 16-bit Address, performs a bitwise AND followed by a
bitwise OR, and writes the result back to the bit field in the
16-bit port, and saves the value in the S3 script to be replayed on S3 resume.
Reads the 16-bit PCI configuration 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 PCI
configuration register specified by Address. The value written to the PCI
configuration register is returned. This function must guarantee that all PCI
read and write operations are serialized. Extra left bits in both AndData and
OrData are stripped.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..15.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..15.
@param[in] AndData The value to AND with the PCI configuration register.
@param[in] OrData The value to OR with the result of the AND operation.
@return The value written back to the PCI configuration register.
**/
UINT16
EFIAPI
S3PciBitFieldAndThenOr16 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT16 AndData,
IN UINT16 OrData
);
/**
Reads a 32-bit PCI configuration register, and saves the value in the S3
script to be replayed on S3 resume.
Reads and returns the 32-bit PCI configuration register specified by Address.
This function must guarantee that all PCI read and write operations are
serialized.
If Address > 0x0FFFFFFF, then ASSERT().
If Address is not aligned on a 32-bit boundary, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@return The read value from the PCI configuration register.
**/
UINT32
EFIAPI
S3PciRead32 (
IN UINTN Address
);
/**
Writes a 32-bit PCI configuration register, and saves the value in the S3
script to be replayed on S3 resume.
Writes the 32-bit PCI configuration register specified by Address with the
value specified by Value. Value is returned. This function must guarantee
that all PCI read and write operations are serialized.
If Address > 0x0FFFFFFF, then ASSERT().
If Address is not aligned on a 32-bit boundary, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] Value The value to write.
@return The value written to the PCI configuration register.
**/
UINT32
EFIAPI
S3PciWrite32 (
IN UINTN Address,
IN UINT32 Value
);
/**
Performs a bitwise OR of a 32-bit PCI configuration register with
a 32-bit value, and saves the value in the S3 script to be replayed on S3 resume.
Reads the 32-bit PCI configuration 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 PCI configuration register
specified by Address. The value written to the PCI configuration register is
returned. This function must guarantee that all PCI read and write operations
are serialized.
If Address > 0x0FFFFFFF, then ASSERT().
If Address is not aligned on a 32-bit boundary, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] OrData The value to OR with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT32
EFIAPI
S3PciOr32 (
IN UINTN Address,
IN UINT32 OrData
);
/**
Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit
value, and saves the value in the S3 script to be replayed on S3 resume.
Reads the 32-bit PCI configuration 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 PCI configuration register specified by
Address. The value written to the PCI configuration register is returned.
This function must guarantee that all PCI read and write operations are
serialized.
If Address > 0x0FFFFFFF, then ASSERT().
If Address is not aligned on a 32-bit boundary, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] AndData The value to AND with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT32
EFIAPI
S3PciAnd32 (
IN UINTN Address,
IN UINT32 AndData
);
/**
Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit
value, followed a bitwise OR with another 32-bit value, and saves
the value in the S3 script to be replayed on S3 resume.
Reads the 32-bit PCI configuration 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 PCI
configuration register specified by Address. The value written to the PCI
configuration register is returned. This function must guarantee that all PCI
read and write operations are serialized.
If Address > 0x0FFFFFFF, then ASSERT().
If Address is not aligned on a 32-bit boundary, then ASSERT().
@param[in] Address The address that encodes the PCI Bus, Device, Function and
Register.
@param[in] AndData The value to AND with the PCI configuration register.
@param[in] OrData The value to OR with the result of the AND operation.
@return The value written back to the PCI configuration register.
**/
UINT32
EFIAPI
S3PciAndThenOr32 (
IN UINTN Address,
IN UINT32 AndData,
IN UINT32 OrData
);
/**
Reads a bit field of a PCI configuration register, and saves the value in
the S3 script to be replayed on S3 resume.
Reads the bit field in a 32-bit PCI configuration register. The bit field is
specified by the StartBit and the EndBit. The value of the bit field is
returned.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to read.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..31.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..31.
@return The value of the bit field read from the PCI configuration register.
**/
UINT32
EFIAPI
S3PciBitFieldRead32 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit
);
/**
Writes a bit field to a PCI configuration register, and saves the value in
the S3 script to be replayed on S3 resume.
Writes Value to the bit field of the PCI configuration register. The bit
field is specified by the StartBit and the EndBit. All other bits in the
destination PCI configuration register are preserved. The new value of the
32-bit register is returned.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..31.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..31.
@param[in] Value New value of the bit field.
@return The value written back to the PCI configuration register.
**/
UINT32
EFIAPI
S3PciBitFieldWrite32 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT32 Value
);
/**
Reads a bit field in a 32-bit PCI configuration, performs a bitwise OR, and
writes the result back to the bit field in the 32-bit port, and saves the value
in the S3 script to be replayed on S3 resume.
Reads the 32-bit PCI configuration 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 PCI configuration register
specified by Address. The value written to the PCI configuration register is
returned. This function must guarantee that all PCI read and write operations
are serialized. Extra left bits in OrData are stripped.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..31.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..31.
@param[in] OrData The value to OR with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT32
EFIAPI
S3PciBitFieldOr32 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT32 OrData
);
/**
Reads a bit field in a 32-bit PCI configuration register, performs a bitwise
AND, and writes the result back to the bit field in the 32-bit register and
saves the value in the S3 script to be replayed on S3 resume.
Reads the 32-bit PCI configuration 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 PCI configuration register specified by
Address. The value written to the PCI configuration register is returned.
This function must guarantee that all PCI read and write operations are
serialized. Extra left bits in AndData are stripped.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..31.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..31.
@param[in] AndData The value to AND with the PCI configuration register.
@return The value written back to the PCI configuration register.
**/
UINT32
EFIAPI
S3PciBitFieldAnd32 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT32 AndData
);
/**
Reads a bit field in a 32-bit Address, performs a bitwise AND followed by a
bitwise OR, and writes the result back to the bit field in the
32-bit port, and saves the value in the S3 script to be replayed on S3 resume.
Reads the 32-bit PCI configuration 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 PCI
configuration register specified by Address. The value written to the PCI
configuration register is returned. This function must guarantee that all PCI
read and write operations are serialized. Extra left bits in both AndData and
OrData are stripped.
If Address > 0x0FFFFFFF, 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[in] Address The PCI configuration register to write.
@param[in] StartBit The ordinal of the least significant bit in the bit field.
Range 0..31.
@param[in] EndBit The ordinal of the most significant bit in the bit field.
Range 0..31.
@param[in] AndData The value to AND with the PCI configuration register.
@param[in] OrData The value to OR with the result of the AND operation.
@return The value written back to the PCI configuration register.
**/
UINT32
EFIAPI
S3PciBitFieldAndThenOr32 (
IN UINTN Address,
IN UINTN StartBit,
IN UINTN EndBit,
IN UINT32 AndData,
IN UINT32 OrData
);
/**
Reads a range of PCI configuration registers into a caller supplied buffer,
and saves the value in the S3 script to be replayed on S3 resume.
Reads the range of PCI configuration registers specified by StartAddress and
Size into the buffer specified by Buffer. This function only allows the PCI
configuration registers from a single PCI function to be read. Size is
returned. When possible 32-bit PCI configuration read cycles are used to read
from StartAdress to StartAddress + Size. Due to alignment restrictions, 8-bit
and 16-bit PCI configuration read cycles may be used at the beginning and the
end of the range.
If StartAddress > 0x0FFFFFFF, then ASSERT().
If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
If Size > 0 and Buffer is NULL, then ASSERT().
@param[in] StartAddress Starting address that encodes the PCI Bus, Device,
Function and Register.
@param[in] Size Size in bytes of the transfer.
@param[out] Buffer The pointer to a buffer receiving the data read.
@return Size.
**/
UINTN
EFIAPI
S3PciReadBuffer (
IN UINTN StartAddress,
IN UINTN Size,
OUT VOID *Buffer
);
/**
Copies the data in a caller supplied buffer to a specified range of PCI
configuration space, and saves the value in the S3 script to be replayed on S3
resume.
Writes the range of PCI configuration registers specified by StartAddress and
Size from the buffer specified by Buffer. This function only allows the PCI
configuration registers from a single PCI function to be written. Size is
returned. When possible 32-bit PCI configuration write cycles are used to
write from StartAdress to StartAddress + Size. Due to alignment restrictions,
8-bit and 16-bit PCI configuration write cycles may be used at the beginning
and the end of the range.
If StartAddress > 0x0FFFFFFF, then ASSERT().
If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
If Size > 0 and Buffer is NULL, then ASSERT().
@param[in] StartAddress Starting address that encodes the PCI Bus, Device,
Function and Register.
@param[in] Size Size in bytes of the transfer.
@param[in] Buffer The pointer to a buffer containing the data to write.
@return Size.
**/
UINTN
EFIAPI
S3PciWriteBuffer (
IN UINTN StartAddress,
IN UINTN Size,
IN VOID *Buffer
);
#endif