/** @file
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Aspire VN7-572G Board ACPI Library
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Copyright (c) 2017 - 2019, 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 <Base.h>
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#include <PiDxe.h>
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#include <Library/BoardAcpiTableLib.h>
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#include <Library/EcLib.h>
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#include <Library/PcdLib.h>
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#include <Protocol/GlobalNvsArea.h>
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GLOBAL_REMOVE_IF_UNREFERENCED EFI_GLOBAL_NVS_AREA_PROTOCOL mGlobalNvsArea;
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VOID
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AspireVn7Dash572GUpdateGlobalNvs (
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VOID
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)
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{
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EFI_STATUS Status;
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UINT8 PowerRegister;
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//
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// Allocate and initialize the NVS area for SMM and ASL communication.
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//
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mGlobalNvsArea.Area = (VOID *)(UINTN)PcdGet64 (PcdAcpiGnvsAddress);
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//
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// Update global NVS area for ASL and SMM init code to use
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//
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//
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// Enable PowerState
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//
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Status = EcRead (0x70, &PowerRegister);
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if (EFI_ERROR (Status)) {
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PowerRegister = 0;
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}
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mGlobalNvsArea.Area->PowerState = (PowerRegister & BIT5) == BIT5;
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mGlobalNvsArea.Area->NativePCIESupport = PcdGet8 (PcdPciExpNative);
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//
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// Enable APIC
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//
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mGlobalNvsArea.Area->ApicEnable = GLOBAL_NVS_DEVICE_ENABLE;
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//
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// Low Power S0 Idle - Enabled/Disabled
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//
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mGlobalNvsArea.Area->LowPowerS0Idle = PcdGet8 (PcdLowPowerS0Idle);
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mGlobalNvsArea.Area->Ps2MouseEnable = PcdGet8 (PcdPs2KbMsEnable);
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mGlobalNvsArea.Area->Ps2KbMsEnable = PcdGet8 (PcdPs2KbMsEnable);
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mGlobalNvsArea.Area->BoardId = (UINT8) LibPcdGetSku ();
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}
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EFI_STATUS
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EFIAPI
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AspireVn7Dash572GBoardUpdateAcpiTable (
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IN OUT EFI_ACPI_COMMON_HEADER *Table,
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IN OUT EFI_ACPI_TABLE_VERSION *Version
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)
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{
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if (Table->Signature == EFI_ACPI_2_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) {
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AspireVn7Dash572GUpdateGlobalNvs ();
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}
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return EFI_SUCCESS;
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}
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