mirror of https://github.com/acidanthera/audk.git
891 lines
36 KiB
C
891 lines
36 KiB
C
/** @file
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Functions accessing PCI configuration registers on any supported PCI segment
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __PCI_SEGMENT_LIB__
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#define __PCI_SEGMENT_LIB__
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/**
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Macro that converts PCI Segment, PCI Bus, PCI Device, PCI Function,
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and PCI Register to an address that can be passed to the PCI Segment Library functions.
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Computes an address that is compatible with the PCI Segment Library functions.
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The unused upper bits of Segment, Bus, Device, Function,
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and Register are stripped prior to the generation of the address.
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@param Segment PCI Segment number. Range 0..65535.
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@param Bus PCI Bus number. Range 0..255.
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@param Device PCI Device number. Range 0..31.
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@param Function PCI Function number. Range 0..7.
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@param Register PCI Register number. Range 0..255 for PCI. Range 0..4095 for PCI Express.
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@return The address that is compatible with the PCI Segment Library functions.
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**/
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#define PCI_SEGMENT_LIB_ADDRESS(Segment,Bus,Device,Function,Register) \
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( ((Register) & 0xfff) | \
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(((Function) & 0x07) << 12) | \
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(((Device) & 0x1f) << 15) | \
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(((Bus) & 0xff) << 20) | \
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(LShiftU64((Segment) & 0xffff, 32)) \
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)
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/**
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Reads an 8-bit PCI configuration register.
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Reads and returns the 8-bit PCI configuration register specified by Address.
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This function must guarantee that all PCI read and write operations are serialized.
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If any reserved bits in Address are set, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@return The 8-bit PCI configuration register specified by Address.
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**/
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UINT8
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EFIAPI
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PciSegmentRead8 (
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IN UINT64 Address
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);
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/**
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Writes an 8-bit PCI configuration register.
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Writes the 8-bit PCI configuration register specified by Address with the value specified by Value.
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Value is returned. This function must guarantee that all PCI read and write operations are serialized.
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If Address > 0x0FFFFFFF, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param Value The value to write.
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@return The parameter of Value.
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**/
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UINT8
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EFIAPI
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PciSegmentWrite8 (
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IN UINT64 Address,
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IN UINT8 Value
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);
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/**
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Performs a bitwise inclusive OR of an 8-bit PCI configuration register with an 8-bit value.
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Reads the 8-bit PCI configuration register specified by Address,
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performs a bitwise inclusive OR between the read result and the value specified by OrData,
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and writes the result to the 8-bit PCI configuration register specified by Address.
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The value written to the PCI configuration register is returned.
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This function must guarantee that all PCI read and write operations are serialized.
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If any reserved bits in Address are set, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param OrData The value to OR with the PCI configuration register.
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@return The value written to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciSegmentOr8 (
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IN UINT64 Address,
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IN UINT8 OrData
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);
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/**
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Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit value.
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Reads the 8-bit PCI configuration register specified by Address,
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performs a bitwise AND between the read result and the value specified by AndData,
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and writes the result to the 8-bit PCI configuration register specified by Address.
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The value written to the PCI configuration register is returned.
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This function must guarantee that all PCI read and write operations are serialized.
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If any reserved bits in Address are set, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param AndData The value to AND with the PCI configuration register.
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@return The value written to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciSegmentAnd8 (
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IN UINT64 Address,
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IN UINT8 AndData
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);
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/**
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Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit value,
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followed a bitwise inclusive OR with another 8-bit value.
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Reads the 8-bit PCI configuration register specified by Address,
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performs a bitwise AND between the read result and the value specified by AndData,
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performs a bitwise inclusive OR between the result of the AND operation and the value specified by OrData,
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and writes the result to the 8-bit PCI configuration register specified by Address.
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The value written to the PCI configuration register is returned.
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This function must guarantee that all PCI read and write operations are serialized.
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If any reserved bits in Address are set, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param AndData The value to AND with the PCI configuration register.
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@param OrData The value to OR with the PCI configuration register.
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@return The value written to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciSegmentAndThenOr8 (
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IN UINT64 Address,
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IN UINT8 AndData,
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IN UINT8 OrData
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);
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/**
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Reads a bit field of a PCI configuration register.
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Reads the bit field in an 8-bit PCI configuration register.
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The bit field is specified by the StartBit and the EndBit.
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The value of the bit field is returned.
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If any reserved bits in Address are set, then ASSERT().
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If StartBit is greater than 7, then ASSERT().
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If EndBit is greater than 7, then ASSERT().
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If EndBit is less than StartBit, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param StartBit The ordinal of the least significant bit in the bit field.
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The ordinal of the least significant bit in a byte is bit 0.
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@param EndBit The ordinal of the most significant bit in the bit field.
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The ordinal of the most significant bit in a byte is bit 7.
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@return The value of the bit field.
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**/
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UINT8
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EFIAPI
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PciSegmentBitFieldRead8 (
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IN UINT64 Address,
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IN UINTN StartBit,
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IN UINTN EndBit
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);
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/**
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Writes a bit field to a PCI configuration register.
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Writes Value to the bit field of the PCI configuration register.
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The bit field is specified by the StartBit and the EndBit.
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All other bits in the destination PCI configuration register are preserved.
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The new value of the 8-bit register is returned.
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If any reserved bits in Address are set, then ASSERT().
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If StartBit is greater than 7, then ASSERT().
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If EndBit is greater than 7, then ASSERT().
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If EndBit is less than StartBit, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param StartBit The ordinal of the least significant bit in the bit field.
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The ordinal of the least significant bit in a byte is bit 0.
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@param EndBit The ordinal of the most significant bit in the bit field.
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The ordinal of the most significant bit in a byte is bit 7.
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@param Value New value of the bit field.
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@return The new value of the 8-bit register.
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**/
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UINT8
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EFIAPI
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PciSegmentBitFieldWrite8 (
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IN UINT64 Address,
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IN UINTN StartBit,
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IN UINTN EndBit,
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IN UINT8 Value
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);
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/**
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Reads the 8-bit PCI configuration register specified by Address,
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performs a bitwise inclusive OR between the read result and the value specified by OrData,
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and writes the result to the 8-bit PCI configuration register specified by Address.
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param StartBit The ordinal of the least significant bit in the bit field.
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The ordinal of the least significant bit in a byte is bit 0.
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@param EndBit The ordinal of the most significant bit in the bit field.
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The ordinal of the most significant bit in a byte is bit 7.
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@param OrData The value to OR with the read value from the PCI configuration register.
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@return The value written to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciSegmentBitFieldOr8 (
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IN UINT64 Address,
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IN UINTN StartBit,
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IN UINTN EndBit,
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IN UINT8 OrData
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);
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/**
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Reads a bit field in an 8-bit PCI configuration, performs a bitwise OR,
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and writes the result back to the bit field in the 8-bit port.
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Reads the 8-bit PCI configuration register specified by Address,
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performs a bitwise inclusive OR between the read result and the value specified by OrData,
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and writes the result to the 8-bit PCI configuration register specified by Address.
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The value written to the PCI configuration register is returned.
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This function must guarantee that all PCI read and write operations are serialized.
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Extra left bits in OrData are stripped.
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If any reserved bits in Address are set, then ASSERT().
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If StartBit is greater than 7, then ASSERT().
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If EndBit is greater than 7, then ASSERT().
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If EndBit is less than StartBit, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param StartBit The ordinal of the least significant bit in the bit field.
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The ordinal of the least significant bit in a byte is bit 0.
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@param EndBit The ordinal of the most significant bit in the bit field.
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The ordinal of the most significant bit in a byte is bit 7.
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@param AndData The value to AND with the read value from the PCI configuration register.
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@return The value written to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciSegmentBitFieldAnd8 (
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IN UINT64 Address,
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IN UINTN StartBit,
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IN UINTN EndBit,
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IN UINT8 AndData
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);
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/**
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Reads a bit field in an 8-bit PCI configuration register, performs a bitwise AND,
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and writes the result back to the bit field in the 8-bit register.
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Reads the 8-bit PCI configuration register specified by Address,
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performs a bitwise AND between the read result and the value specified by AndData,
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and writes the result to the 8-bit PCI configuration register specified by Address.
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The value written to the PCI configuration register is returned.
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This function must guarantee that all PCI read and write operations are serialized.
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Extra left bits in AndData are stripped.
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If any reserved bits in Address are set, then ASSERT().
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If StartBit is greater than 7, then ASSERT().
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If EndBit is greater than 7, then ASSERT().
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If EndBit is less than StartBit, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param StartBit The ordinal of the least significant bit in the bit field.
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The ordinal of the least significant bit in a byte is bit 0.
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@param EndBit The ordinal of the most significant bit in the bit field.
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The ordinal of the most significant bit in a byte is bit 7.
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@param AndData The value to AND with the read value from the PCI configuration register.
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@param OrData The value to OR with the read value from the PCI configuration register.
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@return The value written to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciSegmentBitFieldAndThenOr8 (
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IN UINT64 Address,
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IN UINTN StartBit,
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IN UINTN EndBit,
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IN UINT8 AndData,
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IN UINT8 OrData
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);
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/**
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Reads a 16-bit PCI configuration register.
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Reads and returns the 16-bit PCI configuration register specified by Address.
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This function must guarantee that all PCI read and write operations are serialized.
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If any reserved bits in Address are set, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@return The 16-bit PCI configuration register specified by Address.
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**/
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UINT16
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EFIAPI
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PciSegmentRead16 (
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IN UINT64 Address
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);
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/**
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Writes a 16-bit PCI configuration register.
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Writes the 16-bit PCI configuration register specified by Address with the value specified by Value.
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Value is returned. This function must guarantee that all PCI read and write operations are serialized.
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If Address > 0x0FFFFFFF, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param Value The value to write.
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@return The parameter of Value.
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**/
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UINT16
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EFIAPI
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PciSegmentWrite16 (
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IN UINT64 Address,
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IN UINT16 Value
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);
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/**
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Performs a bitwise inclusive OR of a 16-bit PCI configuration register with a 16-bit value.
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Reads the 16-bit PCI configuration register specified by Address,
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performs a bitwise inclusive OR between the read result and the value specified by OrData,
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and writes the result to the 16-bit PCI configuration register specified by Address.
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The value written to the PCI configuration register is returned.
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This function must guarantee that all PCI read and write operations are serialized.
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If any reserved bits in Address are set, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param OrData The value to OR with the PCI configuration register.
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@return The value written to the PCI configuration register.
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**/
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UINT16
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EFIAPI
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PciSegmentOr16 (
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IN UINT64 Address,
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IN UINT16 OrData
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);
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/**
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Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit value.
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Reads the 16-bit PCI configuration register specified by Address,
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performs a bitwise AND between the read result and the value specified by AndData,
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and writes the result to the 16-bit PCI configuration register specified by Address.
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The value written to the PCI configuration register is returned.
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This function must guarantee that all PCI read and write operations are serialized.
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If any reserved bits in Address are set, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param AndData The value to AND with the PCI configuration register.
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@return The value written to the PCI configuration register.
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**/
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UINT16
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EFIAPI
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PciSegmentAnd16 (
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IN UINT64 Address,
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IN UINT16 AndData
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);
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/**
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Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit value,
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followed a bitwise inclusive OR with another 16-bit value.
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Reads the 16-bit PCI configuration register specified by Address,
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performs a bitwise AND between the read result and the value specified by AndData,
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performs a bitwise inclusive OR between the result of the AND operation and the value specified by OrData,
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and writes the result to the 16-bit PCI configuration register specified by Address.
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The value written to the PCI configuration register is returned.
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This function must guarantee that all PCI read and write operations are serialized.
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If any reserved bits in Address are set, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param AndData The value to AND with the PCI configuration register.
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@param OrData The value to OR with the PCI configuration register.
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@return The value written to the PCI configuration register.
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**/
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UINT16
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EFIAPI
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PciSegmentAndThenOr16 (
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IN UINT64 Address,
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IN UINT16 AndData,
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IN UINT16 OrData
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);
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/**
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Reads a bit field of a PCI configuration register.
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Reads the bit field in a 16-bit PCI configuration register.
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The bit field is specified by the StartBit and the EndBit.
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The value of the bit field is returned.
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If any reserved bits in Address are set, then ASSERT().
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If StartBit is greater than 7, then ASSERT().
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If EndBit is greater than 7, then ASSERT().
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If EndBit is less than StartBit, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param StartBit The ordinal of the least significant bit in the bit field.
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The ordinal of the least significant bit in a byte is bit 0.
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@param EndBit The ordinal of the most significant bit in the bit field.
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The ordinal of the most significant bit in a byte is bit 7.
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@return The value of the bit field.
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**/
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UINT16
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EFIAPI
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PciSegmentBitFieldRead16 (
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IN UINT64 Address,
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IN UINTN StartBit,
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IN UINTN EndBit
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);
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/**
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Writes a bit field to a PCI configuration register.
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Writes Value to the bit field of the PCI configuration register.
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The bit field is specified by the StartBit and the EndBit.
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All other bits in the destination PCI configuration register are preserved.
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The new value of the 16-bit register is returned.
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If any reserved bits in Address are set, then ASSERT().
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If StartBit is greater than 7, then ASSERT().
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If EndBit is greater than 7, then ASSERT().
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If EndBit is less than StartBit, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param StartBit The ordinal of the least significant bit in the bit field.
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The ordinal of the least significant bit in a byte is bit 0.
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@param EndBit The ordinal of the most significant bit in the bit field.
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The ordinal of the most significant bit in a byte is bit 7.
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@param Value New value of the bit field.
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@return The new value of the 16-bit register.
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**/
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UINT16
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EFIAPI
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PciSegmentBitFieldWrite16 (
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IN UINT64 Address,
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IN UINTN StartBit,
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IN UINTN EndBit,
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IN UINT16 Value
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);
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/**
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Reads the 16-bit PCI configuration register specified by Address,
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performs a bitwise inclusive OR between the read result and the value specified by OrData,
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and writes the result to the 16-bit PCI configuration register specified by Address.
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param StartBit The ordinal of the least significant bit in the bit field.
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The ordinal of the least significant bit in a byte is bit 0.
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@param EndBit The ordinal of the most significant bit in the bit field.
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The ordinal of the most significant bit in a byte is bit 7.
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@param OrData The value to OR with the read value from the PCI configuration register.
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@return The value written to the PCI configuration register.
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**/
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UINT16
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EFIAPI
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PciSegmentBitFieldOr16 (
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IN UINT64 Address,
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IN UINTN StartBit,
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IN UINTN EndBit,
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IN UINT16 OrData
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);
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/**
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Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR,
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and writes the result back to the bit field in the 16-bit port.
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Reads the 16-bit PCI configuration register specified by Address,
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performs a bitwise inclusive OR between the read result and the value specified by OrData,
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and writes the result to the 16-bit PCI configuration register specified by Address.
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The value written to the PCI configuration register is returned.
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This function must guarantee that all PCI read and write operations are serialized.
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Extra left bits in OrData are stripped.
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If any reserved bits in Address are set, then ASSERT().
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If StartBit is greater than 7, then ASSERT().
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If EndBit is greater than 7, then ASSERT().
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If EndBit is less than StartBit, then ASSERT().
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@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
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@param StartBit The ordinal of the least significant bit in the bit field.
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The ordinal of the least significant bit in a byte is bit 0.
|
|
@param EndBit The ordinal of the most significant bit in the bit field.
|
|
The ordinal of the most significant bit in a byte is bit 7.
|
|
@param AndData The value to AND with the read value from the PCI configuration register.
|
|
|
|
@return The value written to the PCI configuration register.
|
|
|
|
**/
|
|
UINT16
|
|
EFIAPI
|
|
PciSegmentBitFieldAnd16 (
|
|
IN UINT64 Address,
|
|
IN UINTN StartBit,
|
|
IN UINTN EndBit,
|
|
IN UINT16 AndData
|
|
);
|
|
|
|
/**
|
|
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.
|
|
|
|
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 any reserved bits in Address are set, 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 Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param StartBit The ordinal of the least significant bit in the bit field.
|
|
The ordinal of the least significant bit in a byte is bit 0.
|
|
@param EndBit The ordinal of the most significant bit in the bit field.
|
|
The ordinal of the most significant bit in a byte is bit 7.
|
|
@param AndData The value to AND with the read value from the PCI configuration register.
|
|
@param OrData The value to OR with the read value from the PCI configuration register.
|
|
|
|
@return The value written to the PCI configuration register.
|
|
|
|
**/
|
|
UINT16
|
|
EFIAPI
|
|
PciSegmentBitFieldAndThenOr16 (
|
|
IN UINT64 Address,
|
|
IN UINTN StartBit,
|
|
IN UINTN EndBit,
|
|
IN UINT16 AndData,
|
|
IN UINT16 OrData
|
|
);
|
|
|
|
/**
|
|
Reads a 32-bit PCI configuration register.
|
|
|
|
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 any reserved bits in Address are set, then ASSERT().
|
|
|
|
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
|
|
@return The 32-bit PCI configuration register specified by Address.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciSegmentRead32 (
|
|
IN UINT64 Address
|
|
);
|
|
|
|
/**
|
|
Writes a 32-bit PCI configuration register.
|
|
|
|
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().
|
|
|
|
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param Value The value to write.
|
|
|
|
@return The parameter of Value.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciSegmentWrite32 (
|
|
IN UINT64 Address,
|
|
IN UINT32 Value
|
|
);
|
|
|
|
/**
|
|
Performs a bitwise inclusive OR of a 32-bit PCI configuration register with a 32-bit value.
|
|
|
|
Reads the 32-bit PCI configuration register specified by Address,
|
|
performs a bitwise inclusive OR between the read result and the value specified by OrData,
|
|
and writes the result to the 32-bit 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 any reserved bits in Address are set, then ASSERT().
|
|
|
|
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param OrData The value to OR with the PCI configuration register.
|
|
|
|
@return The value written to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciSegmentOr32 (
|
|
IN UINT64 Address,
|
|
IN UINT32 OrData
|
|
);
|
|
|
|
/**
|
|
Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit value.
|
|
|
|
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 any reserved bits in Address are set, then ASSERT().
|
|
|
|
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param AndData The value to AND with the PCI configuration register.
|
|
|
|
@return The value written to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciSegmentAnd32 (
|
|
IN UINT64 Address,
|
|
IN UINT32 AndData
|
|
);
|
|
|
|
/**
|
|
Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit value,
|
|
followed a bitwise inclusive OR with another 32-bit value.
|
|
|
|
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 inclusive 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 any reserved bits in Address are set, then ASSERT().
|
|
|
|
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param AndData The value to AND with the PCI configuration register.
|
|
@param OrData The value to OR with the PCI configuration register.
|
|
|
|
@return The value written to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciSegmentAndThenOr32 (
|
|
IN UINT64 Address,
|
|
IN UINT32 AndData,
|
|
IN UINT32 OrData
|
|
);
|
|
|
|
/**
|
|
Reads a bit field of a PCI configuration register.
|
|
|
|
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 any reserved bits in Address are set, 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 Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param StartBit The ordinal of the least significant bit in the bit field.
|
|
The ordinal of the least significant bit in a byte is bit 0.
|
|
@param EndBit The ordinal of the most significant bit in the bit field.
|
|
The ordinal of the most significant bit in a byte is bit 7.
|
|
|
|
@return The value of the bit field.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciSegmentBitFieldRead32 (
|
|
IN UINT64 Address,
|
|
IN UINTN StartBit,
|
|
IN UINTN EndBit
|
|
);
|
|
|
|
/**
|
|
Writes a bit field to a PCI configuration register.
|
|
|
|
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 any reserved bits in Address are set, 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 Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param StartBit The ordinal of the least significant bit in the bit field.
|
|
The ordinal of the least significant bit in a byte is bit 0.
|
|
@param EndBit The ordinal of the most significant bit in the bit field.
|
|
The ordinal of the most significant bit in a byte is bit 7.
|
|
@param Value New value of the bit field.
|
|
|
|
@return The new value of the 32-bit register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciSegmentBitFieldWrite32 (
|
|
IN UINT64 Address,
|
|
IN UINTN StartBit,
|
|
IN UINTN EndBit,
|
|
IN UINT32 Value
|
|
);
|
|
|
|
/**
|
|
Reads the 32-bit PCI configuration register specified by Address,
|
|
performs a bitwise inclusive OR between the read result and the value specified by OrData,
|
|
and writes the result to the 32-bit PCI configuration register specified by Address.
|
|
|
|
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param StartBit The ordinal of the least significant bit in the bit field.
|
|
The ordinal of the least significant bit in a byte is bit 0.
|
|
@param EndBit The ordinal of the most significant bit in the bit field.
|
|
The ordinal of the most significant bit in a byte is bit 7.
|
|
@param OrData The value to OR with the read value from the PCI configuration register.
|
|
|
|
@return The value written to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciSegmentBitFieldOr32 (
|
|
IN UINT64 Address,
|
|
IN UINTN StartBit,
|
|
IN UINTN EndBit,
|
|
IN UINT32 OrData
|
|
);
|
|
|
|
/**
|
|
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.
|
|
|
|
Reads the 32-bit PCI configuration register specified by Address,
|
|
performs a bitwise inclusive OR between the read result and the value specified by OrData,
|
|
and writes the result to the 32-bit 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 any reserved bits in Address are set, 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 Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param StartBit The ordinal of the least significant bit in the bit field.
|
|
The ordinal of the least significant bit in a byte is bit 0.
|
|
@param EndBit The ordinal of the most significant bit in the bit field.
|
|
The ordinal of the most significant bit in a byte is bit 7.
|
|
@param AndData The value to AND with the read value from the PCI configuration register.
|
|
|
|
@return The value written to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciSegmentBitFieldAnd32 (
|
|
IN UINT64 Address,
|
|
IN UINTN StartBit,
|
|
IN UINTN EndBit,
|
|
IN UINT32 AndData
|
|
);
|
|
|
|
/**
|
|
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.
|
|
|
|
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 any reserved bits in Address are set, 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 Address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param StartBit The ordinal of the least significant bit in the bit field.
|
|
The ordinal of the least significant bit in a byte is bit 0.
|
|
@param EndBit The ordinal of the most significant bit in the bit field.
|
|
The ordinal of the most significant bit in a byte is bit 7.
|
|
@param AndData The value to AND with the read value from the PCI configuration register.
|
|
@param OrData The value to OR with the read value from the PCI configuration register.
|
|
|
|
@return The value written to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciSegmentBitFieldAndThenOr32 (
|
|
IN UINT64 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.
|
|
|
|
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.
|
|
If any reserved bits in StartAddress are set, then ASSERT().
|
|
If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
|
|
If (StartAddress + Size - 1) > 0x0FFFFFFF, then ASSERT().
|
|
If Buffer is NULL, then ASSERT().
|
|
|
|
@param StartAddress Starting address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param Size Size in bytes of the transfer.
|
|
@param Buffer Pointer to a buffer receiving the data read.
|
|
|
|
@return The paramter of Size.
|
|
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
PciSegmentReadBuffer (
|
|
IN UINT64 StartAddress,
|
|
IN UINTN Size,
|
|
OUT VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Copies the data in a caller supplied buffer to a specified range of PCI configuration space.
|
|
|
|
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.
|
|
If any reserved bits in StartAddress are set, then ASSERT().
|
|
If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
|
|
If (StartAddress + Size - 1) > 0x0FFFFFFF, then ASSERT().
|
|
If Buffer is NULL, then ASSERT().
|
|
|
|
@param StartAddress Starting address that encodes the PCI Segment, Bus, Device, Function, and Register.
|
|
@param Size Size in bytes of the transfer.
|
|
@param Buffer Pointer to a buffer containing the data to write.
|
|
|
|
@return The paramter of Size.
|
|
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
PciSegmentWriteBuffer (
|
|
IN UINT64 StartAddress,
|
|
IN UINTN Size,
|
|
IN VOID *Buffer
|
|
);
|
|
|
|
#endif
|