mirror of https://github.com/acidanthera/audk.git
1057 lines
38 KiB
C
1057 lines
38 KiB
C
/** @file
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Provides services to access PCI Configuration Space.
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These functions perform PCI configuration cycles using the default PCI configuration
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access method. This may use I/O ports 0xCF8 and 0xCFC to perform PCI configuration accesses,
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or it may use MMIO registers relative to the PcdPciExpressBaseAddress, or it may use some
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alternate access method. Modules will typically use the PCI Library for its PCI configuration
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accesses. However, if a module requires a mix of PCI access methods, the PCI CF8 Library or
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PCI Express Library may be used in conjunction with the PCI Library. The functionality of
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these three libraries is identical. The PCI CF8 Library and PCI Express Library simply use
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explicit access methods.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __PCI_LIB_H__
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#define __PCI_LIB_H__
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/**
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Macro that converts PCI Bus, PCI Device, PCI Function and PCI Register to an
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address that can be passed to the PCI Library functions.
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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
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for PCI Express.
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@return The encoded PCI address.
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**/
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#define PCI_LIB_ADDRESS(Bus, Device, Function, Register) \
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(((Register) & 0xfff) | (((Function) & 0x07) << 12) | (((Device) & 0x1f) << 15) | (((Bus) & 0xff) << 20))
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/**
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Registers a PCI device so PCI configuration registers may be accessed after
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SetVirtualAddressMap().
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Registers the PCI device specified by Address so all the PCI configuration registers
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associated with that PCI device may be accessed after SetVirtualAddressMap() is called.
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If Address > 0x0FFFFFFF, then ASSERT().
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@param Address Address that encodes the PCI Bus, Device, Function and
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Register.
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@retval RETURN_SUCCESS The PCI device was registered for runtime access.
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@retval RETURN_UNSUPPORTED An attempt was made to call this function
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after ExitBootServices().
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@retval RETURN_UNSUPPORTED The resources required to access the PCI device
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at runtime could not be mapped.
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@retval RETURN_OUT_OF_RESOURCES There are not enough resources available to
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complete the registration.
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**/
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RETURN_STATUS
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EFIAPI
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PciRegisterForRuntimeAccess (
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IN UINTN Address
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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
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serialized.
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If Address > 0x0FFFFFFF, then ASSERT().
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@param Address Address that encodes the PCI Bus, Device, Function and
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Register.
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@return The read value from the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciRead8 (
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IN UINTN 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
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value specified by Value. Value is returned. This function must guarantee
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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 Bus, Device, Function and
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Register.
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@param Value The value to write.
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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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PciWrite8 (
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IN UINTN Address,
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IN UINT8 Value
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);
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/**
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Performs a bitwise OR of an 8-bit PCI configuration register with
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an 8-bit value.
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Reads the 8-bit PCI configuration register specified by Address, performs a
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bitwise OR between the read result and the value specified by
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OrData, and writes the result to the 8-bit PCI configuration register
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specified by Address. The value written to the PCI configuration register is
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returned. This function must guarantee that all PCI read and write operations
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are serialized.
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If Address > 0x0FFFFFFF, then ASSERT().
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@param Address Address that encodes the PCI Bus, Device, Function and
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Register.
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@param OrData The value to OR with the PCI configuration register.
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@return The value written back to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciOr8 (
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IN UINTN 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
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value.
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Reads the 8-bit PCI configuration register specified by Address, performs a
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bitwise AND between the read result and the value specified by AndData, and
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writes the result to the 8-bit PCI configuration register specified by
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Address. 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
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serialized.
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If Address > 0x0FFFFFFF, then ASSERT().
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@param Address Address that encodes the PCI Bus, Device, Function and
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Register.
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@param AndData The value to AND with the PCI configuration register.
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@return The value written back to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciAnd8 (
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IN UINTN 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
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value, followed by a bitwise OR with another 8-bit value.
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Reads the 8-bit PCI configuration register specified by Address, performs a
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bitwise AND between the read result and the value specified by AndData,
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performs a bitwise OR between the result of the AND operation and
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the value specified by OrData, and writes the result to the 8-bit PCI
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configuration register specified by Address. The value written to the PCI
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configuration register is returned. This function must guarantee that all PCI
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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 Bus, Device, Function and
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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 result of the AND operation.
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@return The value written back to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciAndThenOr8 (
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IN UINTN 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. The bit field is
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specified by the StartBit and the EndBit. The value of the bit field is
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returned.
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If Address > 0x0FFFFFFF, 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 PCI configuration register to read.
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@param StartBit The ordinal of the least significant bit in the bit field.
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Range 0..7.
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@param EndBit The ordinal of the most significant bit in the bit field.
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Range 0..7.
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@return The value of the bit field read from the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciBitFieldRead8 (
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IN UINTN 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. The bit
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field is specified by the StartBit and the EndBit. All other bits in the
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destination PCI configuration register are preserved. The new value of the
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8-bit register is returned.
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If Address > 0x0FFFFFFF, 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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If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
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@param Address PCI configuration register to write.
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@param StartBit The ordinal of the least significant bit in the bit field.
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Range 0..7.
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@param EndBit The ordinal of the most significant bit in the bit field.
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Range 0..7.
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@param Value New value of the bit field.
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@return The value written back to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciBitFieldWrite8 (
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IN UINTN 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 a bit field in an 8-bit PCI configuration, performs a bitwise OR, and
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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, performs a
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bitwise OR between the read result and the value specified by
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OrData, and writes the result to the 8-bit PCI configuration register
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specified by Address. The value written to the PCI configuration register is
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returned. This function must guarantee that all PCI read and write operations
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are serialized. Extra left bits in OrData are stripped.
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If Address > 0x0FFFFFFF, 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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If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
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@param Address PCI configuration register to write.
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@param StartBit The ordinal of the least significant bit in the bit field.
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Range 0..7.
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@param EndBit The ordinal of the most significant bit in the bit field.
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Range 0..7.
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@param OrData The value to OR with the PCI configuration register.
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@return The value written back to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciBitFieldOr8 (
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IN UINTN 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 register, performs a bitwise
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AND, 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, performs a
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bitwise AND between the read result and the value specified by AndData, and
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writes the result to the 8-bit PCI configuration register specified by
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Address. 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
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serialized. Extra left bits in AndData are stripped.
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If Address > 0x0FFFFFFF, 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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If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
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@param Address PCI configuration register to write.
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@param StartBit The ordinal of the least significant bit in the bit field.
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Range 0..7.
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@param EndBit The ordinal of the most significant bit in the bit field.
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Range 0..7.
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@param AndData The value to AND with the PCI configuration register.
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@return The value written back to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciBitFieldAnd8 (
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IN UINTN 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 port, performs a bitwise AND followed by a
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bitwise OR, and writes the result back to the bit field in the
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8-bit port.
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Reads the 8-bit PCI configuration register specified by Address, performs a
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bitwise AND followed by a bitwise OR between the read result and
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the value specified by AndData, and writes the result to the 8-bit PCI
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configuration register specified by Address. The value written to the PCI
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configuration register is returned. This function must guarantee that all PCI
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read and write operations are serialized. Extra left bits in both AndData and
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OrData are stripped.
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If Address > 0x0FFFFFFF, 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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If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
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If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().
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@param Address PCI configuration register to write.
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@param StartBit The ordinal of the least significant bit in the bit field.
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Range 0..7.
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@param EndBit The ordinal of the most significant bit in the bit field.
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Range 0..7.
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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 result of the AND operation.
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@return The value written back to the PCI configuration register.
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**/
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UINT8
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EFIAPI
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PciBitFieldAndThenOr8 (
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IN UINTN 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
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serialized.
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If Address > 0x0FFFFFFF, then ASSERT().
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If Address is not aligned on a 16-bit boundary, then ASSERT().
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@param Address Address that encodes the PCI Bus, Device, Function and
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Register.
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@return The read value from the PCI configuration register.
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**/
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UINT16
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EFIAPI
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PciRead16 (
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IN UINTN 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
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value specified by Value. Value is returned. This function must guarantee
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that all PCI read and write operations are serialized.
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If Address > 0x0FFFFFFF, then ASSERT().
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If Address is not aligned on a 16-bit boundary, then ASSERT().
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@param Address Address that encodes the PCI Bus, Device, Function and
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Register.
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@param Value The value to write.
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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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PciWrite16 (
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IN UINTN Address,
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IN UINT16 Value
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);
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/**
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Performs a bitwise OR of a 16-bit PCI configuration register with
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a 16-bit value.
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Reads the 16-bit PCI configuration register specified by Address, performs a
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bitwise OR between the read result and the value specified by
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OrData, and writes the result to the 16-bit PCI configuration register
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specified by Address. The value written to the PCI configuration register is
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returned. This function must guarantee that all PCI read and write operations
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are serialized.
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|
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If Address > 0x0FFFFFFF, then ASSERT().
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If Address is not aligned on a 16-bit boundary, then ASSERT().
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@param Address Address that encodes the PCI Bus, Device, Function and
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Register.
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@param OrData The value to OR with the PCI configuration register.
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@return The value written back to the PCI configuration register.
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**/
|
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UINT16
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EFIAPI
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PciOr16 (
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IN UINTN 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
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value.
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|
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Reads the 16-bit PCI configuration register specified by Address, performs a
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bitwise AND between the read result and the value specified by AndData, and
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writes the result to the 16-bit PCI configuration register specified by
|
|
Address. 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
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serialized.
|
|
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If Address > 0x0FFFFFFF, then ASSERT().
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If Address is not aligned on a 16-bit boundary, then ASSERT().
|
|
|
|
@param Address Address that encodes the PCI Bus, Device, Function and
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Register.
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@param AndData The value to AND with the PCI configuration register.
|
|
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@return The value written back to the PCI configuration register.
|
|
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|
**/
|
|
UINT16
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EFIAPI
|
|
PciAnd16 (
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IN UINTN Address,
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IN UINT16 AndData
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);
|
|
|
|
/**
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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.
|
|
|
|
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 Address Address that encodes the PCI Bus, Device, Function and
|
|
Register.
|
|
@param AndData The value to AND with the PCI configuration register.
|
|
@param OrData The value to OR with the result of the AND operation.
|
|
|
|
@return The value written back to the PCI configuration register.
|
|
|
|
**/
|
|
UINT16
|
|
EFIAPI
|
|
PciAndThenOr16 (
|
|
IN UINTN Address,
|
|
IN UINT16 AndData,
|
|
IN UINT16 OrData
|
|
);
|
|
|
|
/**
|
|
Reads a bit field of a PCI configuration register.
|
|
|
|
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 Address PCI configuration register to read.
|
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@param StartBit The ordinal of the least significant bit in the bit field.
|
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Range 0..15.
|
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@param 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
|
|
PciBitFieldRead16 (
|
|
IN UINTN Address,
|
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IN UINTN StartBit,
|
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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
|
|
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 Address PCI configuration 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 PCI configuration register.
|
|
|
|
**/
|
|
UINT16
|
|
EFIAPI
|
|
PciBitFieldWrite16 (
|
|
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.
|
|
|
|
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 Address PCI configuration 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 the PCI configuration register.
|
|
|
|
@return The value written back to the PCI configuration register.
|
|
|
|
**/
|
|
UINT16
|
|
EFIAPI
|
|
PciBitFieldOr16 (
|
|
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.
|
|
|
|
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 Address PCI configuration 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 the PCI configuration register.
|
|
|
|
@return The value written back to the PCI configuration register.
|
|
|
|
**/
|
|
UINT16
|
|
EFIAPI
|
|
PciBitFieldAnd16 (
|
|
IN UINTN Address,
|
|
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 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 Address PCI configuration 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 the PCI configuration register.
|
|
@param OrData The value to OR with the result of the AND operation.
|
|
|
|
@return The value written back to the PCI configuration register.
|
|
|
|
**/
|
|
UINT16
|
|
EFIAPI
|
|
PciBitFieldAndThenOr16 (
|
|
IN UINTN 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 Address > 0x0FFFFFFF, then ASSERT().
|
|
If Address is not aligned on a 32-bit boundary, then ASSERT().
|
|
|
|
@param Address Address that encodes the PCI Bus, Device, Function and
|
|
Register.
|
|
|
|
@return The read value from the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciRead32 (
|
|
IN UINTN 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().
|
|
If Address is not aligned on a 32-bit boundary, then ASSERT().
|
|
|
|
@param Address Address that encodes the PCI Bus, Device, Function and
|
|
Register.
|
|
@param Value The value to write.
|
|
|
|
@return The value written to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciWrite32 (
|
|
IN UINTN Address,
|
|
IN UINT32 Value
|
|
);
|
|
|
|
/**
|
|
Performs a bitwise 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 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 Address Address that encodes the PCI Bus, Device, Function and
|
|
Register.
|
|
@param OrData The value to OR with the PCI configuration register.
|
|
|
|
@return The value written back to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciOr32 (
|
|
IN UINTN 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 Address > 0x0FFFFFFF, then ASSERT().
|
|
If Address is not aligned on a 32-bit boundary, then ASSERT().
|
|
|
|
@param Address Address that encodes the PCI Bus, Device, Function and
|
|
Register.
|
|
@param AndData The value to AND with the PCI configuration register.
|
|
|
|
@return The value written back to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciAnd32 (
|
|
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.
|
|
|
|
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 Address Address that encodes the PCI Bus, Device, Function and
|
|
Register.
|
|
@param AndData The value to AND with the PCI configuration register.
|
|
@param OrData The value to OR with the result of the AND operation.
|
|
|
|
@return The value written back to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciAndThenOr32 (
|
|
IN UINTN 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 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 Address PCI configuration 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 of the bit field read from the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciBitFieldRead32 (
|
|
IN UINTN 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 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 Address PCI configuration 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 PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciBitFieldWrite32 (
|
|
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.
|
|
|
|
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 Address PCI configuration 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 the PCI configuration register.
|
|
|
|
@return The value written back to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciBitFieldOr32 (
|
|
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.
|
|
|
|
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 Address PCI configuration 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 the PCI configuration register.
|
|
|
|
@return The value written back to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciBitFieldAnd32 (
|
|
IN UINTN Address,
|
|
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 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 Address PCI configuration 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 the PCI configuration register.
|
|
@param OrData The value to OR with the result of the AND operation.
|
|
|
|
@return The value written back to the PCI configuration register.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
PciBitFieldAndThenOr32 (
|
|
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.
|
|
|
|
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 StartAddress 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 StartAddress Starting address that encodes the PCI Bus, Device,
|
|
Function and Register.
|
|
@param Size Size in bytes of the transfer.
|
|
@param Buffer Pointer to a buffer receiving the data read.
|
|
|
|
@return Size
|
|
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
PciReadBuffer (
|
|
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.
|
|
|
|
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 StartAddress 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 StartAddress Starting address that encodes the PCI 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 Size written to StartAddress.
|
|
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
PciWriteBuffer (
|
|
IN UINTN StartAddress,
|
|
IN UINTN Size,
|
|
IN VOID *Buffer
|
|
);
|
|
|
|
#endif
|