/** @file
Acer Aspire VN7-572G SMM Board ACPI Enable library
Copyright (c) 2017 - 2019, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include
#include
#include
#include
EFI_STATUS
EFIAPI
AspireVn7Dash572GBoardEnableAcpi (
IN BOOLEAN EnableSci
)
{
EFI_STATUS Status;
/* Tests at runtime show this re-enables charging and battery reporting
* - Obtained somewhere from somewhere in vendor's SmmKbcDriver (or RtKbcDriver).
* Further reversing will be performed */
Status = SendEcCommand (0xE9); /* Vendor implements using ACPI "CMDB" register" */
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a(): SendEcCommand(0xE9) failed!\n", __FUNCTION__));
return EFI_DEVICE_ERROR;
}
Status = SendEcData (0x81);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a(): SendEcData(0x81) failed!\n", __FUNCTION__));
return EFI_DEVICE_ERROR;
}
/* TODO: Set touchpad GPP owner to ACPI? */
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
AspireVn7Dash572GBoardDisableAcpi (
IN BOOLEAN DisableSci
)
{
EFI_STATUS Status;
/* Tests at runtime show this disables charging and battery reporting
* - Obtained somewhere from somewhere in vendor's SmmKbcDriver (or RtKbcDriver).
* Further reversing will be performed */
Status = SendEcCommand (0xE9); /* Vendor implements using ACPI "CMDB" register" */
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a(): SendEcCommand(0xE9) failed!\n", __FUNCTION__));
return EFI_DEVICE_ERROR;
}
Status = SendEcData (0x80);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a(): SendEcData(0x80) failed!\n", __FUNCTION__));
return EFI_DEVICE_ERROR;
}
/* TODO: Set touchpad GPP owner to GPIO? */
return EFI_SUCCESS;
}