520 lines
12 KiB
C
520 lines
12 KiB
C
/** @file
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Common I/O Library routines.
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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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#include "DxeSmmH2OIoLib.h"
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/**
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Reads a 64-bit I/O port.
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Reads the 64-bit I/O port specified by Port. The 64-bit read value is returned.
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This function must guarantee that all I/O read and write operations are
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serialized.
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If 64-bit I/O port operations are not supported, then ASSERT().
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If Port is not aligned on a 64-bit boundary, then ASSERT().
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@param Port The I/O port to read.
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@return The value read.
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**/
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UINT64
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EFIAPI
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IoRead64 (
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IN UINTN Port
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Writes a 64-bit I/O port.
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Writes the 64-bit I/O port specified by Port with the value specified by Value
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and returns Value. This function must guarantee that all I/O read and write
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operations are serialized.
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If 64-bit I/O port operations are not supported, then ASSERT().
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If Port is not aligned on a 64-bit boundary, then ASSERT().
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@param Port The I/O port to write.
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@param Value The value to write to the I/O port.
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@return The value written the I/O port.
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**/
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UINT64
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EFIAPI
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IoWrite64 (
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IN UINTN Port,
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IN UINT64 Value
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Reads an 8-bit MMIO register.
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Reads the 8-bit MMIO register specified by Address. The 8-bit read value is
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returned. This function must guarantee that all MMIO read and write
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operations are serialized.
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If 8-bit MMIO register operations are not supported, then ASSERT().
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@param Address The MMIO register to read.
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@return The value read.
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**/
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UINT8
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EFIAPI
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MmioRead8 (
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IN UINTN Address
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)
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{
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UINT8 Value;
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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Value = (UINT8)mDxeSmmIoLibProtocol->MmioRead(Address, SMM_IO_UINT8);
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return Value;
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}
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/**
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Writes an 8-bit MMIO register.
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Writes the 8-bit MMIO register specified by Address with the value specified
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by Value and returns Value. This function must guarantee that all MMIO read
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and write operations are serialized.
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If 8-bit MMIO register operations are not supported, then ASSERT().
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@param Address The MMIO register to write.
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@param Value The value to write to the MMIO register.
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@return Value.
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**/
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UINT8
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EFIAPI
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MmioWrite8 (
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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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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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mDxeSmmIoLibProtocol->MmioWrite(Address, SMM_IO_UINT8, Value);
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return Value;
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}
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/**
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Reads a 16-bit MMIO register.
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Reads the 16-bit MMIO register specified by Address. The 16-bit read value is
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returned. This function must guarantee that all MMIO read and write
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operations are serialized.
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If 16-bit MMIO register operations are not supported, then ASSERT().
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If Address is not aligned on a 16-bit boundary, then ASSERT().
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@param Address The MMIO register to read.
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@return The value read.
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**/
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UINT16
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EFIAPI
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MmioRead16 (
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IN UINTN Address
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)
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{
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UINT16 Value;
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ASSERT ((Address & 1) == 0);
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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Value = (UINT16)mDxeSmmIoLibProtocol->MmioRead(Address, SMM_IO_UINT16);
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return Value;
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}
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/**
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Writes a 16-bit MMIO register.
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Writes the 16-bit MMIO register specified by Address with the value specified
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by Value and returns Value. This function must guarantee that all MMIO read
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and write operations are serialized.
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If 16-bit MMIO register operations are not supported, then ASSERT().
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If Address is not aligned on a 16-bit boundary, then ASSERT().
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@param Address The MMIO register to write.
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@param Value The value to write to the MMIO register.
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@return Value.
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**/
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UINT16
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EFIAPI
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MmioWrite16 (
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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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ASSERT ((Address & 1) == 0);
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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mDxeSmmIoLibProtocol->MmioWrite(Address, SMM_IO_UINT16, Value);
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return Value;
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}
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/**
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Reads a 32-bit MMIO register.
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Reads the 32-bit MMIO register specified by Address. The 32-bit read value is
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returned. This function must guarantee that all MMIO read and write
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operations are serialized.
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If 32-bit MMIO register operations are not supported, then ASSERT().
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If Address is not aligned on a 32-bit boundary, then ASSERT().
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@param Address The MMIO register to read.
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@return The value read.
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**/
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UINT32
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EFIAPI
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MmioRead32 (
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IN UINTN Address
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)
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{
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UINT32 Value;
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ASSERT ((Address & 3) == 0);
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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Value = (UINT32)mDxeSmmIoLibProtocol->MmioRead(Address, SMM_IO_UINT32);
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return Value;
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}
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/**
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Writes a 32-bit MMIO register.
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Writes the 32-bit MMIO register specified by Address with the value specified
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by Value and returns Value. This function must guarantee that all MMIO read
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and write operations are serialized.
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If 32-bit MMIO register operations are not supported, then ASSERT().
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If Address is not aligned on a 32-bit boundary, then ASSERT().
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@param Address The MMIO register to write.
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@param Value The value to write to the MMIO register.
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@return Value.
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**/
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UINT32
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EFIAPI
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MmioWrite32 (
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IN UINTN Address,
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IN UINT32 Value
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)
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{
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ASSERT ((Address & 3) == 0);
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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mDxeSmmIoLibProtocol->MmioWrite(Address, SMM_IO_UINT32, Value);
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return Value;
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}
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/**
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Reads a 64-bit MMIO register.
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Reads the 64-bit MMIO register specified by Address. The 64-bit read value is
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returned. This function must guarantee that all MMIO read and write
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operations are serialized.
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If 64-bit MMIO register operations are not supported, then ASSERT().
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If Address is not aligned on a 64-bit boundary, then ASSERT().
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@param Address The MMIO register to read.
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@return The value read.
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**/
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UINT64
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EFIAPI
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MmioRead64 (
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IN UINTN Address
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)
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{
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UINT64 Value;
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ASSERT ((Address & 7) == 0);
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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Value = mDxeSmmIoLibProtocol->MmioRead(Address, SMM_IO_UINT64);
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return Value;
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}
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/**
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Writes a 64-bit MMIO register.
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Writes the 64-bit MMIO register specified by Address with the value specified
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by Value and returns Value. This function must guarantee that all MMIO read
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and write operations are serialized.
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If 64-bit MMIO register operations are not supported, then ASSERT().
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If Address is not aligned on a 64-bit boundary, then ASSERT().
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@param Address The MMIO register to write.
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@param Value The value to write to the MMIO register.
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**/
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UINT64
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EFIAPI
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MmioWrite64 (
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IN UINTN Address,
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IN UINT64 Value
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)
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{
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ASSERT ((Address & 7) == 0);
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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mDxeSmmIoLibProtocol->MmioWrite((UINT64)Address, SMM_IO_UINT64, Value);
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return Value;
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}
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/**
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Reads an 8-bit I/O port fifo into a block of memory.
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Reads the 8-bit I/O fifo port specified by Port.
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The port is read Count times, and the read data is
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stored in the provided Buffer.
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This function must guarantee that all I/O read and write operations are
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serialized.
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If 8-bit I/O port operations are not supported, then ASSERT().
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@param Port The I/O port to read.
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@param Count The number of times to read I/O port.z`
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@param Buffer The buffer to store the read data into.
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**/
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VOID
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EFIAPI
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IoReadFifo8 (
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IN UINTN Port,
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IN UINTN Count,
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OUT VOID *Buffer
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)
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{
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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mDxeSmmIoLibProtocol->IoReadFifo(Port, SMM_IO_UINT8, Count, Buffer);
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}
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/**
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Writes a block of memory into an 8-bit I/O port fifo.
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Writes the 8-bit I/O fifo port specified by Port.
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The port is written Count times, and the write data is
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retrieved from the provided Buffer.
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This function must guarantee that all I/O write and write operations are
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serialized.
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If 8-bit I/O port operations are not supported, then ASSERT().
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@param Port The I/O port to write.
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@param Count The number of times to write I/O port.
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@param Buffer The buffer to retrieve the write data from.
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**/
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VOID
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EFIAPI
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IoWriteFifo8 (
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IN UINTN Port,
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IN UINTN Count,
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IN VOID *Buffer
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)
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{
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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mDxeSmmIoLibProtocol->IoWriteFifo(Port, SMM_IO_UINT8, Count, Buffer);
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}
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/**
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Reads a 16-bit I/O port fifo into a block of memory.
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Reads the 16-bit I/O fifo port specified by Port.
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The port is read Count times, and the read data is
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stored in the provided Buffer.
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This function must guarantee that all I/O read and write operations are
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serialized.
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If 16-bit I/O port operations are not supported, then ASSERT().
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@param Port The I/O port to read.
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@param Count The number of times to read I/O port.
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@param Buffer The buffer to store the read data into.
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**/
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VOID
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EFIAPI
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IoReadFifo16 (
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IN UINTN Port,
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IN UINTN Count,
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OUT VOID *Buffer
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)
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{
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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mDxeSmmIoLibProtocol->IoReadFifo(Port, SMM_IO_UINT16, Count, Buffer);
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}
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/**
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Writes a block of memory into a 16-bit I/O port fifo.
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Writes the 16-bit I/O fifo port specified by Port.
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The port is written Count times, and the write data is
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retrieved from the provided Buffer.
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This function must guarantee that all I/O write and write operations are
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serialized.
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If 16-bit I/O port operations are not supported, then ASSERT().
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@param Port The I/O port to write.
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@param Count The number of times to write I/O port.
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@param Buffer The buffer to retrieve the write data from.
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**/
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VOID
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EFIAPI
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IoWriteFifo16 (
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IN UINTN Port,
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IN UINTN Count,
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IN VOID *Buffer
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)
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{
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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mDxeSmmIoLibProtocol->IoWriteFifo(Port, SMM_IO_UINT16, Count, Buffer);
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}
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/**
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Reads a 16-bit I/O port fifo into a block of memory.
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Reads the 16-bit I/O fifo port specified by Port.
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The port is read Count times, and the read data is
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stored in the provided Buffer.
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This function must guarantee that all I/O read and write operations are
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serialized.
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If 16-bit I/O port operations are not supported, then ASSERT().
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@param Port The I/O port to read.
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@param Count The number of times to read I/O port.
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@param Buffer The buffer to store the read data into.
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**/
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VOID
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EFIAPI
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IoReadFifo32 (
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IN UINTN Port,
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IN UINTN Count,
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OUT VOID *Buffer
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)
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{
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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mDxeSmmIoLibProtocol->IoReadFifo(Port, SMM_IO_UINT32, Count, Buffer);
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}
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/**
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Writes a block of memory into a 16-bit I/O port fifo.
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Writes the 16-bit I/O fifo port specified by Port.
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The port is written Count times, and the write data is
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retrieved from the provided Buffer.
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This function must guarantee that all I/O write and write operations are
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serialized.
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If 16-bit I/O port operations are not supported, then ASSERT().
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@param Port The I/O port to write.
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@param Count The number of times to write I/O port.
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@param Buffer The buffer to retrieve the write data from.
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**/
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VOID
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EFIAPI
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IoWriteFifo32 (
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IN UINTN Port,
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IN UINTN Count,
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IN VOID *Buffer
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)
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{
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if (!mDxeSmmIoLibProtocol) {
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ASSERT (FALSE);
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}
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mDxeSmmIoLibProtocol->IoWriteFifo(Port, SMM_IO_UINT32, Count, Buffer);
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}
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