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1. The consumer of Acpi Sdt Protocol may want to use the API after ReadyToLock. 2. The ACPI system configuration table even could be overwritten, we see little issue in leaving Acpi Sdt Protocol installed. Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Feng Tian <feng.tian@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
241 lines
7.8 KiB
C
241 lines
7.8 KiB
C
/** @file
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ACPI Table Protocol Driver
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Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _ACPI_TABLE_H_
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#define _ACPI_TABLE_H_
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#include <PiDxe.h>
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#include <Protocol/AcpiTable.h>
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#include <Guid/Acpi.h>
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#include <Protocol/AcpiSystemDescriptionTable.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/PcdLib.h>
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//
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// Statements that include other files
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//
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#include <IndustryStandard/Acpi.h>
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#include "AcpiSdt.h"
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//
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// Great than or equal to 2.0.
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//
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#define ACPI_TABLE_VERSION_GTE_2_0 (EFI_ACPI_TABLE_VERSION_2_0 | \
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EFI_ACPI_TABLE_VERSION_3_0 | \
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EFI_ACPI_TABLE_VERSION_4_0 | \
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EFI_ACPI_TABLE_VERSION_5_0)
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//
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// Private Driver Data
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//
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//
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// ACPI Table Linked List Signature.
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//
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#define EFI_ACPI_TABLE_LIST_SIGNATURE SIGNATURE_32 ('E', 'A', 'T', 'L')
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//
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// ACPI Table Linked List Entry definition.
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//
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// Signature must be set to EFI_ACPI_TABLE_LIST_SIGNATURE
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// Link is the linked list data.
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// Version is the versions of the ACPI tables that this table belongs in.
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// Table is a pointer to the table.
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// PageAddress is the address of the pages allocated for the table.
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// NumberOfPages is the number of pages allocated at PageAddress.
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// Handle is used to identify a particular table.
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//
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typedef struct {
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UINT32 Signature;
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LIST_ENTRY Link;
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EFI_ACPI_TABLE_VERSION Version;
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EFI_ACPI_COMMON_HEADER *Table;
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EFI_PHYSICAL_ADDRESS PageAddress;
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UINTN NumberOfPages;
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UINTN Handle;
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} EFI_ACPI_TABLE_LIST;
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//
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// Containment record for ACPI Table linked list.
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//
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#define EFI_ACPI_TABLE_LIST_FROM_LINK(_link) CR (_link, EFI_ACPI_TABLE_LIST, Link, EFI_ACPI_TABLE_LIST_SIGNATURE)
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//
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// The maximum number of tables this driver supports
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//
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#define EFI_ACPI_MAX_NUM_TABLES 20
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//
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// Protocol private structure definition
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//
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//
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// ACPI support protocol instance signature definition.
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//
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#define EFI_ACPI_TABLE_SIGNATURE SIGNATURE_32 ('S', 'T', 'A', 'E')
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//
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// ACPI support protocol instance data structure
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//
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typedef struct {
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UINTN Signature;
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EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp1; // Pointer to RSD_PTR structure
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EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp3; // Pointer to RSD_PTR structure
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EFI_ACPI_DESCRIPTION_HEADER *Rsdt1; // Pointer to RSDT table header
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EFI_ACPI_DESCRIPTION_HEADER *Rsdt3; // Pointer to RSDT table header
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EFI_ACPI_DESCRIPTION_HEADER *Xsdt; // Pointer to XSDT table header
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EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt1; // Pointer to FADT table header
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EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt3; // Pointer to FADT table header
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EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs1; // Pointer to FACS table header
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EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs3; // Pointer to FACS table header
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EFI_ACPI_DESCRIPTION_HEADER *Dsdt1; // Pointer to DSDT table header
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EFI_ACPI_DESCRIPTION_HEADER *Dsdt3; // Pointer to DSDT table header
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LIST_ENTRY TableList;
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UINTN NumberOfTableEntries1; // Number of ACPI 1.0 tables
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UINTN NumberOfTableEntries3; // Number of ACPI 3.0 tables
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UINTN CurrentHandle;
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EFI_ACPI_TABLE_PROTOCOL AcpiTableProtocol;
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EFI_ACPI_SDT_PROTOCOL AcpiSdtProtocol;
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LIST_ENTRY NotifyList;
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} EFI_ACPI_TABLE_INSTANCE;
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//
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// ACPI table protocol instance containing record macro
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//
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#define EFI_ACPI_TABLE_INSTANCE_FROM_THIS(a) \
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CR (a, \
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EFI_ACPI_TABLE_INSTANCE, \
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AcpiTableProtocol, \
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EFI_ACPI_TABLE_SIGNATURE \
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)
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//
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// Protocol Constructor functions
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//
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/**
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Constructor for the ACPI support protocol. Initializes instance
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data.
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@param AcpiTableInstance Instance to construct
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@return EFI_SUCCESS Instance initialized.
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@return EFI_OUT_OF_RESOURCES Unable to allocate required resources.
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**/
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EFI_STATUS
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AcpiTableAcpiTableConstructor (
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EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
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);
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/**
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Entry point of the ACPI table driver.
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Creates and initializes an instance of the ACPI Table
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Protocol and installs it on a new handle.
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@param ImageHandle A handle for the image that is initializing this driver
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@param SystemTable A pointer to the EFI system table
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@return EFI_SUCCESS Driver initialized successfully
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@return EFI_LOAD_ERROR Failed to Initialize or has been loaded
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@return EFI_OUT_OF_RESOURCES Could not allocate needed resources
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**/
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EFI_STATUS
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EFIAPI
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InitializeAcpiTableDxe (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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);
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/**
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This function finds the table specified by the handle and returns a pointer to it.
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If the handle is not found, EFI_NOT_FOUND is returned and the contents of Table are
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undefined.
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@param[in] Handle Table to find.
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@param[in] TableList Table list to search
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@param[out] Table Pointer to table found.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NOT_FOUND No table found matching the handle specified.
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**/
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EFI_STATUS
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FindTableByHandle (
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IN UINTN Handle,
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IN LIST_ENTRY *TableList,
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OUT EFI_ACPI_TABLE_LIST **Table
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);
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/**
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This function calculates and updates an UINT8 checksum.
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@param[in] Buffer Pointer to buffer to checksum
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@param[in] Size Number of bytes to checksum
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@param[in] ChecksumOffset Offset to place the checksum result in
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@retval EFI_SUCCESS The function completed successfully.
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**/
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EFI_STATUS
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AcpiPlatformChecksum (
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IN VOID *Buffer,
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IN UINTN Size,
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IN UINTN ChecksumOffset
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);
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/**
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This function invokes ACPI notification.
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@param[in] AcpiTableInstance Instance to AcpiTable
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@param[in] Version Version(s) to set.
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@param[in] Handle Handle of the table.
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**/
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VOID
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SdtNotifyAcpiList (
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IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
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IN EFI_ACPI_TABLE_VERSION Version,
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IN UINTN Handle
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);
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/**
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This function initializes AcpiSdt protocol in ACPI table instance.
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@param[in] AcpiTableInstance Instance to construct
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**/
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VOID
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SdtAcpiTableAcpiSdtConstructor (
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IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
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);
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//
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// export PrivateData symbol, because we need that in AcpiSdtProtol implementation
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//
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extern EFI_HANDLE mHandle;
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extern EFI_ACPI_TABLE_INSTANCE *mPrivateData;
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#endif
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