mirror of https://github.com/acidanthera/audk.git
122 lines
2.4 KiB
C
122 lines
2.4 KiB
C
/**
|
|
**/
|
|
/**
|
|
|
|
Copyright (c) 2012 - 2014, Intel Corporation. All rights reserved
|
|
|
|
This program and the accompanying materials are licensed and made available under
|
|
the terms and conditions of the BSD License that accompanies this distribution.
|
|
The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php.
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
|
|
@file
|
|
PchPlatformLib.h
|
|
|
|
@brief
|
|
Header file for PchPlatform Lib.
|
|
|
|
**/
|
|
#ifndef _PCH_PLATFORM_LIB_H_
|
|
#define _PCH_PLATFORM_LIB_H_
|
|
|
|
///
|
|
/// Timeout value used when Sending / Receiving messages.
|
|
/// NOTE: this must cover the longest possible wait time
|
|
/// between message being sent and response being available.
|
|
/// e.g. Virtual function readiness might take some time.
|
|
///
|
|
VOID
|
|
EFIAPI
|
|
PchPmTimerStall (
|
|
IN UINTN Microseconds
|
|
)
|
|
/**
|
|
|
|
@brief
|
|
Delay for at least the request number of microseconds.
|
|
This function would be called by runtime driver, please do not use any MMIO marco here.
|
|
|
|
@param[in] Microseconds Number of microseconds to delay.
|
|
|
|
@retval NONE
|
|
|
|
**/
|
|
;
|
|
|
|
BOOLEAN
|
|
EFIAPI
|
|
PchIsSpiDescriptorMode (
|
|
IN UINTN SpiBase
|
|
)
|
|
/**
|
|
|
|
@brief
|
|
Check whether SPI is in descriptor mode
|
|
|
|
@param[in] SpiBase The PCH Spi Base Address
|
|
|
|
@retval TRUE SPI is in descriptor mode
|
|
@retval FALSE SPI is not in descriptor mode
|
|
|
|
**/
|
|
;
|
|
|
|
PCH_STEPPING
|
|
EFIAPI
|
|
PchStepping (
|
|
VOID
|
|
)
|
|
/**
|
|
|
|
@brief
|
|
Return Pch stepping type
|
|
|
|
@param[in] None
|
|
|
|
@retval PCH_STEPPING Pch stepping type
|
|
|
|
**/
|
|
;
|
|
|
|
BOOLEAN
|
|
IsPchSupported (
|
|
VOID
|
|
)
|
|
/**
|
|
|
|
@brief
|
|
Determine if PCH is supported
|
|
|
|
@param[in] None
|
|
|
|
@retval TRUE PCH is supported
|
|
@retval FALSE PCH is not supported
|
|
|
|
**/
|
|
;
|
|
|
|
VOID
|
|
EFIAPI
|
|
PchAlternateAccessMode (
|
|
IN UINTN IlbBase,
|
|
IN BOOLEAN AmeCtrl
|
|
)
|
|
/**
|
|
|
|
This function can be called to enable/disable Alternate Access Mode
|
|
|
|
@param[in] IlbBase The PCH ILB Base Address
|
|
@param[in] AmeCtrl If TRUE, enable Alternate Access Mode.
|
|
If FALSE, disable Alternate Access Mode.
|
|
|
|
@retval NONE
|
|
|
|
**/
|
|
;
|
|
|
|
#endif
|