110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/** @file
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File to contain all the hardware specific stuff for the Smm Power Button dispatch protocol.
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@copyright
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INTEL CONFIDENTIAL
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Copyright 1999 - 2017 Intel Corporation.
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The source code contained or described herein and all documents related to the
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source code ("Material") are owned by Intel Corporation or its suppliers or
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licensors. Title to the Material remains with Intel Corporation or its suppliers
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and licensors. The Material may contain trade secrets and proprietary and
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confidential information of Intel Corporation and its suppliers and licensors,
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and is protected by worldwide copyright and trade secret laws and treaty
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provisions. No part of the Material may be used, copied, reproduced, modified,
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published, uploaded, posted, transmitted, distributed, or disclosed in any way
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without Intel's prior express written permission.
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No license under any patent, copyright, trade secret or other intellectual
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property right is granted to or conferred upon you by disclosure or delivery
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of the Materials, either expressly, by implication, inducement, estoppel or
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otherwise. Any license under such intellectual property rights must be
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express and approved by Intel in writing.
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Unless otherwise agreed by Intel in writing, you may not remove or alter
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this notice or any other notice embedded in Materials by Intel or
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Intel's suppliers or licensors in any way.
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This file contains an 'Intel Peripheral Driver' and is uniquely identified as
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"Intel Reference Module" and is licensed for Intel CPUs and chipsets under
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the terms of your license agreement with Intel or your vendor. This file may
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be modified by the user, subject to additional terms of the license agreement.
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@par Specification Reference:
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**/
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#include <PchSmmHelpers.h>
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#include <Library/PmcPrivateLib.h>
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GLOBAL_REMOVE_IF_UNREFERENCED CONST PCH_SMM_SOURCE_DESC mPowerButtonSourceDesc = {
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PCH_SMM_SCI_EN_DEPENDENT,
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{
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{
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{
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ACPI_ADDR_TYPE,
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{R_ACPI_IO_PM1_EN}
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},
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S_ACPI_IO_PM1_EN,
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N_ACPI_IO_PM1_EN_PWRBTN
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},
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NULL_BIT_DESC_INITIALIZER
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},
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{
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{
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{
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ACPI_ADDR_TYPE,
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{R_ACPI_IO_PM1_STS}
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},
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S_ACPI_IO_PM1_STS,
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N_ACPI_IO_PM1_STS_PWRBTN
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}
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},
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{
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{
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ACPI_ADDR_TYPE,
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{R_ACPI_IO_SMI_STS}
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},
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S_ACPI_IO_SMI_STS,
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N_ACPI_IO_SMI_STS_PM1_STS_REG
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}
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};
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/**
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Get the power button status.
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@param[in] Record The pointer to the DATABASE_RECORD.
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@param[out] Context Calling context from the hardware, will be updated with the current power button status.
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**/
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VOID
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EFIAPI
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PowerButtonGetContext (
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IN DATABASE_RECORD *Record,
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OUT PCH_SMM_CONTEXT *Context
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)
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{
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if (PmcGetPwrBtnLevel ()) {
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Context->PowerButton.Phase = EfiPowerButtonExit;
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} else {
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Context->PowerButton.Phase = EfiPowerButtonEntry;
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}
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}
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/**
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Check whether Power Button status of two contexts match
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@param[in] Context1 Context 1 that includes Power Button status 1
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@param[in] Context2 Context 2 that includes Power Button status 2
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@retval FALSE Power Button status match
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@retval TRUE Power Button status don't match
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**/
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BOOLEAN
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EFIAPI
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PowerButtonCmpContext (
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IN PCH_SMM_CONTEXT *Context1,
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IN PCH_SMM_CONTEXT *Context2
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)
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{
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return (BOOLEAN) (Context1->PowerButton.Phase == Context2->PowerButton.Phase);
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}
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