/*++ Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent Module Name: AcpiPlatformHooksLib.h Abstract: This is an implementation of the ACPI platform driver. Requirements for this driver are defined in the Tiano ACPI External Product Specification, revision 0.3.6. --*/ #ifndef _ACPI_PLATFORM_HOOKS_LIB_H_ #define _ACPI_PLATFORM_HOOKS_LIB_H_ // // Statements that include other header files. // #include /** Returns the ACPI table version that the platform wants. @param[in] None @retval EFI_ACPI_TABLE_VERSION_NONE if ACPI is to be disabled. @retval EFI_ACPI_TABLE_VERSION_1_0B if 1.0b. @retval EFI_ACPI_TABLE_VERSION_2_00 if 2.00. **/ EFI_ACPI_TABLE_VERSION AcpiPlatformHooksGetAcpiTableVersion ( VOID ); /** Returns the OEMID, OEM Table ID, OEM Revision. @param[in] None @retval OemId OEM ID string for ACPI tables, maximum 6 ASCII characters. This is an OEM-supplied string that identifies the OEM. @retval OemTableId An OEM-supplied string that the OEM uses to identify the particular data table. This field is particularly useful when defining a definition block to distinguish definition block functions. The OEM assigns each dissimilar table a new OEM Table ID. @retval OemRevision An OEM-supplied revision number for ACPI tables. Larger numbers are assumed to be newer revisions. **/ EFI_STATUS AcpiPlatformHooksGetOemFields ( OUT UINT8 *OemId, OUT UINT64 *OemTableId, OUT UINT32 *OemRevision ); /** Called for every ACPI table found in the BIOS flash. Returns whether a table is active or not. Inactive tables are not published in the ACPI table list. This hook can be used to implement optional SSDT tables or enabling/disabling specific functionality (e.g. SPCR table) based on a setup switch or platform preference. In case of optional SSDT tables, the platform flash will include all the SSDT tables but will return EFI_SUCCESS only for those tables that need to be published. This hook can also be used to update the table data. The header is updated by the common code. For example, if a platform wants to use an SSDT table to export some platform settings to the ACPI code, it needs to update the data inside that SSDT based on platform preferences in this hook. @param[in] None @retval EFI_SUCCESS if the table is active. @retval EFI_UNSUPPORTED if the table is not active. **/ EFI_STATUS AcpiPlatformHooksIsActiveTable ( IN OUT EFI_ACPI_COMMON_HEADER *Table ); #endif