/** @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 (c) 2021, 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 <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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