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/** @file
File to contain all the hardware specific stuff for the Smm Power Button dispatch protocol.
@copyright
Copyright (c) 1999 - 2012 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
This file contains an 'Intel Peripheral Driver' and uniquely
identified as "Intel Reference Module" and is
licensed for Intel CPUs and chipsets under the terms of your
license agreement with Intel or your vendor. This file may
be modified by the user, subject to additional terms of the
license agreement
**/
#include "Token.h"
#include "PchSmmHelpers.h"
const PCH_SMM_SOURCE_DESC POWER_BUTTON_SOURCE_DESC = {
PCH_SMM_SCI_EN_DEPENDENT,
{
{
{
ACPI_ADDR_TYPE,
R_PCH_ACPI_PM1_EN
},
S_PCH_ACPI_PM1_EN,
N_PCH_ACPI_PM1_EN_PWRBTN
},
NULL_BIT_DESC_INITIALIZER
},
{
{
{
ACPI_ADDR_TYPE,
R_PCH_ACPI_PM1_STS
},
S_PCH_ACPI_PM1_STS,
N_PCH_ACPI_PM1_STS_PWRBTN
}
}
};
/**
Get the power button status.
@param[in] Record The pointer to the DATABASE_RECORD.
@param[out] Context Calling context from the hardware, will be updated with the current power button status.
@retval None
**/
VOID
EFIAPI
PowerButtonGetContext (
IN DATABASE_RECORD *Record,
OUT PCH_SMM_CONTEXT *Context
)
{
UINT16 GenPmCon1;
GenPmCon1 = MmioRead16 (
MmPciAddress (0,
DEFAULT_PCI_BUS_NUMBER_PCH,
PCI_DEVICE_NUMBER_PCH_LPC,
PCI_FUNCTION_NUMBER_PCH_LPC,
R_PCH_LPC_GEN_PMCON_1)
);
if ((GenPmCon1 & B_PCH_LPC_GEN_PMCON_PWRBTN_LVL) != 0) {
Context->PowerButton.Phase = PowerButtonExit;
} else {
Context->PowerButton.Phase = PowerButtonEntry;
}
// AMI_OVERRIDE, EIP145008, forced PowerButton.Phase as PowerButtonEntry.>>>
#if defined FORCE_PWB_PHASE_AS_ENTRY && FORCE_PWB_PHASE_AS_ENTRY == 1
Context->PowerButton.Phase = PowerButtonEntry;
#endif
// AMI_OVERRIDE, EIP145008, forced PowerButton.Phase as PowerButtonEntry.<<<
}
/**
Check whether Power Button status of two contexts match
@param[in] Context1 Context 1 that includes Power Button status 1
@param[in] Context2 Context 2 that includes Power Button status 2
@retval FALSE Power Button status match
@retval TRUE Power Button status don't match
**/
BOOLEAN
EFIAPI
PowerButtonCmpContext (
IN PCH_SMM_CONTEXT *Context1,
IN PCH_SMM_CONTEXT *Context2
)
{
return (BOOLEAN) (Context1->PowerButton.Phase == Context2->PowerButton.Phase);
}
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