mirror of https://github.com/acidanthera/audk.git
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
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/** @file
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Common I/O Library routines.
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Copyright (c) 2006, Intel Corporation<BR>
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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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Module Name: IoLib.c
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**/
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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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@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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@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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