/**
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**/
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/**
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Copyright (c) 2012 - 2014, Intel Corporation. All rights reserved
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@file
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PchPlatformLib.h
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@brief
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Header file for PchPlatform Lib.
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**/
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#ifndef _PCH_PLATFORM_LIB_H_
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#define _PCH_PLATFORM_LIB_H_
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///
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/// Timeout value used when Sending / Receiving messages.
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/// NOTE: this must cover the longest possible wait time
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/// between message being sent and response being available.
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/// e.g. Virtual function readiness might take some time.
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///
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VOID
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EFIAPI
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PchPmTimerStall (
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IN UINTN Microseconds
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)
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/**
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@brief
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Delay for at least the request number of microseconds.
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This function would be called by runtime driver, please do not use any MMIO marco here.
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@param[in] Microseconds Number of microseconds to delay.
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@retval NONE
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**/
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;
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BOOLEAN
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EFIAPI
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PchIsSpiDescriptorMode (
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IN UINTN SpiBase
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)
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/**
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@brief
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Check whether SPI is in descriptor mode
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@param[in] SpiBase The PCH Spi Base Address
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@retval TRUE SPI is in descriptor mode
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@retval FALSE SPI is not in descriptor mode
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**/
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;
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PCH_STEPPING
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EFIAPI
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PchStepping (
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VOID
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)
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/**
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@brief
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Return Pch stepping type
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@param[in] None
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@retval PCH_STEPPING Pch stepping type
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**/
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;
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BOOLEAN
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IsPchSupported (
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VOID
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)
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/**
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@brief
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Determine if PCH is supported
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@param[in] None
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@retval TRUE PCH is supported
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@retval FALSE PCH is not supported
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**/
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;
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VOID
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EFIAPI
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PchAlternateAccessMode (
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IN UINTN IlbBase,
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IN BOOLEAN AmeCtrl
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)
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/**
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This function can be called to enable/disable Alternate Access Mode
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@param[in] IlbBase The PCH ILB Base Address
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@param[in] AmeCtrl If TRUE, enable Alternate Access Mode.
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If FALSE, disable Alternate Access Mode.
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@retval NONE
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**/
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;
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#endif
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