f0071740ec
Follow PI 1.4 spec, 1. Cover EFI_ACPI_TABLE_VERSION_5_0. 2. Update TableKey parameter description in the EFI_ACPI_SDT_PROTOCOL.GetAcpiTable() section. 3. Update EFI_ACPI_SDT_PROTOCOL.GetAcpiTable() description. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17649 6f19259b-4bc3-4df7-8a09-765794883524
587 lines
19 KiB
C
587 lines
19 KiB
C
/** @file
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ACPI Sdt Protocol Driver
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Copyright (c) 2010 - 2015, 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_SDT_H_
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#define _ACPI_SDT_H_
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//
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// Privacy data structure
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//
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//
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// ACPI Notify Linked List Signature.
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//
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#define EFI_ACPI_NOTIFY_LIST_SIGNATURE SIGNATURE_32 ('E', 'A', 'N', 'L')
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//
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// ACPI Notify List Entry definition.
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//
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// Signature must be set to EFI_ACPI_NOTIFY_LIST_SIGNATURE
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// Link is the linked list data.
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// Notification is the callback function.
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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_NOTIFICATION_FN Notification;
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} EFI_ACPI_NOTIFY_LIST;
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//
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// Containment record for ACPI Notify linked list.
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//
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#define EFI_ACPI_NOTIFY_LIST_FROM_LINK(_link) CR (_link, EFI_ACPI_NOTIFY_LIST, Link, EFI_ACPI_NOTIFY_LIST_SIGNATURE)
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typedef struct _AML_BYTE_ENCODING AML_BYTE_ENCODING;
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typedef struct _EFI_AML_NODE_LIST EFI_AML_NODE_LIST;
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//
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// AML Node Linked List Signature.
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//
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#define EFI_AML_NODE_LIST_SIGNATURE SIGNATURE_32 ('E', 'A', 'M', 'L')
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//
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// AML Node Linked List Entry definition.
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//
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// Signature must be set to EFI_AML_NODE_LIST_SIGNATURE
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// Link is the linked list data.
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// Name is the ACPI node name.
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// This is listed for PATH finding.
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// Buffer is the ACPI node buffer pointer, the first/second bytes are opcode.
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// This buffer should not be freed.
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// Size is the total size of this ACPI node buffer.
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// Children is the children linked list of this node.
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//
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#define AML_NAME_SEG_SIZE 4
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struct _EFI_AML_NODE_LIST {
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UINT32 Signature;
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UINT8 Name[AML_NAME_SEG_SIZE];
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UINT8 *Buffer;
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UINTN Size;
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LIST_ENTRY Link;
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LIST_ENTRY Children;
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EFI_AML_NODE_LIST *Parent;
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AML_BYTE_ENCODING *AmlByteEncoding;
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};
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//
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// Containment record for AML Node linked list.
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//
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#define EFI_AML_NODE_LIST_FROM_LINK(_link) CR (_link, EFI_AML_NODE_LIST, Link, EFI_AML_NODE_LIST_SIGNATURE)
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//
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// AML Handle Signature.
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//
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#define EFI_AML_HANDLE_SIGNATURE SIGNATURE_32 ('E', 'A', 'H', 'S')
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#define EFI_AML_ROOT_HANDLE_SIGNATURE SIGNATURE_32 ('E', 'A', 'R', 'H')
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//
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// AML Handle Entry definition.
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//
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// Signature must be set to EFI_AML_HANDLE_SIGNATURE or EFI_AML_ROOT_HANDLE_SIGNATURE
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// Buffer is the ACPI node buffer pointer, the first/second bytes are opcode.
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// This buffer should not be freed.
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// Size is the total size of this ACPI node buffer.
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//
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typedef struct {
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UINT32 Signature;
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UINT8 *Buffer;
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UINTN Size;
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AML_BYTE_ENCODING *AmlByteEncoding;
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BOOLEAN Modified;
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} EFI_AML_HANDLE;
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typedef UINT32 AML_OP_PARSE_INDEX;
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#define AML_OP_PARSE_INDEX_GET_OPCODE 0
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#define AML_OP_PARSE_INDEX_GET_TERM1 1
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#define AML_OP_PARSE_INDEX_GET_TERM2 2
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#define AML_OP_PARSE_INDEX_GET_TERM3 3
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#define AML_OP_PARSE_INDEX_GET_TERM4 4
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#define AML_OP_PARSE_INDEX_GET_TERM5 5
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#define AML_OP_PARSE_INDEX_GET_TERM6 6
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#define AML_OP_PARSE_INDEX_GET_SIZE (AML_OP_PARSE_INDEX)-1
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typedef UINT32 AML_OP_PARSE_FORMAT;
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#define AML_NONE 0
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#define AML_OPCODE 1
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#define AML_UINT8 2
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#define AML_UINT16 3
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#define AML_UINT32 4
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#define AML_UINT64 5
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#define AML_NAME 6
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#define AML_STRING 7
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#define AML_OBJECT 8
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typedef UINT32 AML_OP_ATTRIBUTE;
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#define AML_HAS_PKG_LENGTH 0x1 // It is ACPI attribute - if OpCode has PkgLength
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#define AML_IS_NAME_CHAR 0x2 // It is ACPI attribute - if this is NameChar
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#define AML_HAS_CHILD_OBJ 0x4 // it is ACPI attribute - if OpCode has Child Object.
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#define AML_IN_NAMESPACE 0x10000 // It is UEFI SDT attribute - if OpCode will be in NameSpace
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// NOTE; Not all OBJECT will be in NameSpace
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// For example, BankField | CreateBitField | CreateByteField | CreateDWordField |
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// CreateField | CreateQWordField | CreateWordField | Field | IndexField.
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struct _AML_BYTE_ENCODING {
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UINT8 OpCode;
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UINT8 SubOpCode;
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AML_OP_PARSE_INDEX MaxIndex;
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AML_OP_PARSE_FORMAT Format[6];
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AML_OP_ATTRIBUTE Attribute;
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};
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//
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// AcpiSdt protocol declaration
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//
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/**
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Returns a requested ACPI table.
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The GetAcpiTable() function returns a pointer to a buffer containing the ACPI table associated
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with the Index that was input. The following structures are not considered elements in the list of
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ACPI tables:
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- Root System Description Pointer (RSD_PTR)
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- Root System Description Table (RSDT)
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- Extended System Description Table (XSDT)
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Version is updated with a bit map containing all the versions of ACPI of which the table is a
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member. For tables installed via the EFI_ACPI_TABLE_PROTOCOL.InstallAcpiTable() interface,
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the function returns the value of EFI_ACPI_STD_PROTOCOL.AcpiVersion.
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@param[in] Index The zero-based index of the table to retrieve.
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@param[out] Table Pointer for returning the table buffer.
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@param[out] Version On return, updated with the ACPI versions to which this table belongs. Type
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EFI_ACPI_TABLE_VERSION is defined in "Related Definitions" in the
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EFI_ACPI_SDT_PROTOCOL.
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@param[out] TableKey On return, points to the table key for the specified ACPI system definition table.
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This is identical to the table key used in the EFI_ACPI_TABLE_PROTOCOL.
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The TableKey can be passed to EFI_ACPI_TABLE_PROTOCOL.UninstallAcpiTable()
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to uninstall the table.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NOT_FOUND The requested index is too large and a table was not found.
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**/
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EFI_STATUS
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EFIAPI
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GetAcpiTable2 (
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IN UINTN Index,
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OUT EFI_ACPI_SDT_HEADER **Table,
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OUT EFI_ACPI_TABLE_VERSION *Version,
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OUT UINTN *TableKey
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);
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/**
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Register or unregister a callback when an ACPI table is installed.
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This function registers or unregisters a function which will be called whenever a new ACPI table is
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installed.
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@param[in] Register If TRUE, then the specified function will be registered. If FALSE, then the specified
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function will be unregistered.
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@param[in] Notification Points to the callback function to be registered or unregistered.
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@retval EFI_SUCCESS Callback successfully registered or unregistered.
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@retval EFI_INVALID_PARAMETER Notification is NULL
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@retval EFI_INVALID_PARAMETER Register is FALSE and Notification does not match a known registration function.
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**/
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EFI_STATUS
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EFIAPI
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RegisterNotify (
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IN BOOLEAN Register,
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IN EFI_ACPI_NOTIFICATION_FN Notification
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);
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/**
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Create a handle for the first ACPI opcode in an ACPI system description table.
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@param[in] TableKey The table key for the ACPI table, as returned by GetTable().
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@param[out] Handle On return, points to the newly created ACPI handle.
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@retval EFI_SUCCESS Handle created successfully.
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@retval EFI_NOT_FOUND TableKey does not refer to a valid ACPI table.
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**/
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EFI_STATUS
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EFIAPI
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OpenSdt (
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IN UINTN TableKey,
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OUT EFI_ACPI_HANDLE *Handle
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);
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/**
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Create a handle from an ACPI opcode
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@param[in] Buffer Points to the ACPI opcode.
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@param[out] Handle Upon return, holds the handle.
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@retval EFI_SUCCESS Success
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@retval EFI_INVALID_PARAMETER Buffer is NULL or Handle is NULL or Buffer points to an
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invalid opcode.
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**/
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EFI_STATUS
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EFIAPI
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Open (
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IN VOID *Buffer,
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OUT EFI_ACPI_HANDLE *Handle
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);
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/**
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Close an ACPI handle.
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@param[in] Handle Returns the handle.
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@retval EFI_SUCCESS Success
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@retval EFI_INVALID_PARAMETER Handle is NULL or does not refer to a valid ACPI object.
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**/
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EFI_STATUS
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EFIAPI
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Close (
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IN EFI_ACPI_HANDLE Handle
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);
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/**
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Retrieve information about an ACPI object.
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@param[in] Handle ACPI object handle.
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@param[in] Index Index of the data to retrieve from the object. In general, indexes read from left-to-right
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in the ACPI encoding, with index 0 always being the ACPI opcode.
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@param[out] DataType Points to the returned data type or EFI_ACPI_DATA_TYPE_NONE if no data exists
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for the specified index.
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@param[out] Data Upon return, points to the pointer to the data.
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@param[out] DataSize Upon return, points to the size of Data.
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@retval EFI_SUCCESS Success.
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@retval EFI_INVALID_PARAMETER Handle is NULL or does not refer to a valid ACPI object.
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**/
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EFI_STATUS
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EFIAPI
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GetOption (
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IN EFI_ACPI_HANDLE Handle,
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IN UINTN Index,
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OUT EFI_ACPI_DATA_TYPE *DataType,
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OUT CONST VOID **Data,
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OUT UINTN *DataSize
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);
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/**
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Change information about an ACPI object.
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@param[in] Handle ACPI object handle.
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@param[in] Index Index of the data to retrieve from the object. In general, indexes read from left-to-right
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in the ACPI encoding, with index 0 always being the ACPI opcode.
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@param[in] Data Points to the data.
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@param[in] DataSize The size of the Data.
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@retval EFI_SUCCESS Success
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@retval EFI_INVALID_PARAMETER Handle is NULL or does not refer to a valid ACPI object.
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@retval EFI_BAD_BUFFER_SIZE Data cannot be accommodated in the space occupied by
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the option.
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**/
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EFI_STATUS
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EFIAPI
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SetOption (
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IN EFI_ACPI_HANDLE Handle,
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IN UINTN Index,
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IN CONST VOID *Data,
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IN UINTN DataSize
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);
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/**
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Return the child ACPI objects.
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@param[in] ParentHandle Parent handle.
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@param[in, out] Handle On entry, points to the previously returned handle or NULL to start with the first
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handle. On return, points to the next returned ACPI handle or NULL if there are no
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child objects.
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@retval EFI_SUCCESS Success
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@retval EFI_INVALID_PARAMETER ParentHandle is NULL or does not refer to a valid ACPI object.
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**/
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EFI_STATUS
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EFIAPI
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GetChild (
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IN EFI_ACPI_HANDLE ParentHandle,
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IN OUT EFI_ACPI_HANDLE *Handle
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);
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/**
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Returns the handle of the ACPI object representing the specified ACPI path
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@param[in] HandleIn Points to the handle of the object representing the starting point for the path search.
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@param[in] AcpiPath Points to the ACPI path, which conforms to the ACPI encoded path format.
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@param[out] HandleOut On return, points to the ACPI object which represents AcpiPath, relative to
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HandleIn.
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@retval EFI_SUCCESS Success
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@retval EFI_INVALID_PARAMETER HandleIn is NULL or does not refer to a valid ACPI object.
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**/
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EFI_STATUS
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EFIAPI
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FindPath (
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IN EFI_ACPI_HANDLE HandleIn,
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IN VOID *AcpiPath,
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OUT EFI_ACPI_HANDLE *HandleOut
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);
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//
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// ACPI SDT function
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//
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/**
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Create a handle from an ACPI opcode
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@param[in] Buffer Points to the ACPI opcode.
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@param[in] BufferSize Max buffer size.
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@param[out] Handle Upon return, holds the handle.
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@retval EFI_SUCCESS Success
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@retval EFI_INVALID_PARAMETER Buffer is NULL or Handle is NULL or Buffer points to an
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invalid opcode.
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**/
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EFI_STATUS
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SdtOpenEx (
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IN VOID *Buffer,
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IN UINTN BufferSize,
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OUT EFI_ACPI_HANDLE *Handle
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);
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//
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// AML support function
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//
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/**
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Get AML NameString size.
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@param[in] Buffer AML NameString.
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@param[out] BufferSize AML NameString size
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@retval EFI_SUCCESS Success.
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@retval EFI_INVALID_PARAMETER Buffer does not refer to a valid AML NameString.
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**/
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EFI_STATUS
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AmlGetNameStringSize (
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IN UINT8 *Buffer,
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OUT UINTN *BufferSize
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);
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/**
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This function retuns package length from the buffer.
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@param[in] Buffer AML buffer
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@param[out] PkgLength The total length of package.
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@return The byte data count to present the package length.
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**/
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UINTN
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AmlGetPkgLength (
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IN UINT8 *Buffer,
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OUT UINTN *PkgLength
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);
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/**
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This function returns AcpiDataType according to AmlType.
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@param[in] AmlType AML Type.
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@return AcpiDataType
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**/
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EFI_ACPI_DATA_TYPE
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AmlTypeToAcpiType (
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IN AML_OP_PARSE_FORMAT AmlType
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);
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/**
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This function returns AmlByteEncoding according to OpCode Byte.
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@param[in] OpByteBuffer OpCode byte buffer.
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@return AmlByteEncoding
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**/
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AML_BYTE_ENCODING *
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AmlSearchByOpByte (
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IN UINT8 *OpByteBuffer
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);
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/**
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Return object size.
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@param[in] AmlByteEncoding AML Byte Encoding.
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@param[in] Buffer AML object buffer.
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@param[in] MaxBufferSize AML object buffer MAX size. The parser can not parse any data exceed this region.
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@return Size of the object.
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**/
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UINTN
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AmlGetObjectSize (
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IN AML_BYTE_ENCODING *AmlByteEncoding,
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IN UINT8 *Buffer,
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IN UINTN MaxBufferSize
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);
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/**
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Return object name.
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@param[in] AmlHandle AML handle.
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@return Name of the object.
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**/
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CHAR8 *
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AmlGetObjectName (
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IN EFI_AML_HANDLE *AmlHandle
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);
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/**
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Retrieve information according to AmlHandle
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@param[in] AmlHandle AML handle.
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@param[in] Index Index of the data to retrieve from the object. In general, indexes read from left-to-right
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in the ACPI encoding, with index 0 always being the ACPI opcode.
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@param[out] DataType Points to the returned data type or EFI_ACPI_DATA_TYPE_NONE if no data exists
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for the specified index.
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@param[out] Data Upon return, points to the pointer to the data.
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@param[out] DataSize Upon return, points to the size of Data.
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@retval EFI_SUCCESS Success.
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@retval EFI_INVALID_PARAMETER AmlHandle does not refer to a valid ACPI object.
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**/
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EFI_STATUS
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AmlParseOptionHandleCommon (
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IN EFI_AML_HANDLE *AmlHandle,
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IN AML_OP_PARSE_INDEX Index,
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OUT EFI_ACPI_DATA_TYPE *DataType,
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OUT VOID **Data,
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OUT UINTN *DataSize
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);
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/**
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Return offset of last option.
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@param[in] AmlHandle AML Handle.
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@param[out] Buffer Upon return, points to the offset after last option.
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@retval EFI_SUCCESS Success.
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@retval EFI_INVALID_PARAMETER AmlHandle does not refer to a valid ACPI object.
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**/
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EFI_STATUS
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AmlGetOffsetAfterLastOption (
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IN EFI_AML_HANDLE *AmlHandle,
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OUT UINT8 **Buffer
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);
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/**
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Return the child ACPI objects from Root Handle.
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@param[in] AmlParentHandle Parent handle. It is Root Handle.
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@param[in] AmlHandle The previously returned handle or NULL to start with the first handle.
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@param[out] Buffer On return, points to the next returned ACPI handle or NULL if there are no
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child objects.
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@retval EFI_SUCCESS Success
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@retval EFI_INVALID_PARAMETER ParentHandle is NULL or does not refer to a valid ACPI object.
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**/
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EFI_STATUS
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AmlGetChildFromRoot (
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IN EFI_AML_HANDLE *AmlParentHandle,
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IN EFI_AML_HANDLE *AmlHandle,
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OUT VOID **Buffer
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);
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/**
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Return the child ACPI objects from Non-Root Handle.
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@param[in] AmlParentHandle Parent handle. It is Non-Root Handle.
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@param[in] AmlHandle The previously returned handle or NULL to start with the first handle.
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@param[out] Buffer On return, points to the next returned ACPI handle or NULL if there are no
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child objects.
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@retval EFI_SUCCESS Success
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@retval EFI_INVALID_PARAMETER ParentHandle is NULL or does not refer to a valid ACPI object.
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**/
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EFI_STATUS
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AmlGetChildFromNonRoot (
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IN EFI_AML_HANDLE *AmlParentHandle,
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IN EFI_AML_HANDLE *AmlHandle,
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|
OUT VOID **Buffer
|
|
);
|
|
|
|
/**
|
|
Return AML name according to ASL name.
|
|
The caller need free the AmlName returned.
|
|
|
|
@param[in] AslPath ASL name.
|
|
|
|
@return AmlName
|
|
**/
|
|
UINT8 *
|
|
AmlNameFromAslName (
|
|
IN UINT8 *AslPath
|
|
);
|
|
|
|
/**
|
|
Returns the handle of the ACPI object representing the specified ACPI AML path
|
|
|
|
@param[in] AmlHandle Points to the handle of the object representing the starting point for the path search.
|
|
@param[in] AmlPath Points to the ACPI AML path.
|
|
@param[out] Buffer On return, points to the ACPI object which represents AcpiPath, relative to
|
|
HandleIn.
|
|
@param[in] FromRoot TRUE means to find AML path from \ (Root) Node.
|
|
FALSE means to find AML path from this Node (The HandleIn).
|
|
|
|
@retval EFI_SUCCESS Success
|
|
@retval EFI_INVALID_PARAMETER HandleIn does not refer to a valid ACPI object.
|
|
**/
|
|
EFI_STATUS
|
|
AmlFindPath (
|
|
IN EFI_AML_HANDLE *AmlHandle,
|
|
IN UINT8 *AmlPath,
|
|
OUT VOID **Buffer,
|
|
IN BOOLEAN FromRoot
|
|
);
|
|
|
|
/**
|
|
Print AML NameString.
|
|
|
|
@param[in] Buffer AML NameString.
|
|
**/
|
|
VOID
|
|
AmlPrintNameString (
|
|
IN UINT8 *Buffer
|
|
);
|
|
|
|
/**
|
|
Print AML NameSeg.
|
|
|
|
@param[in] Buffer AML NameSeg.
|
|
**/
|
|
VOID
|
|
AmlPrintNameSeg (
|
|
IN UINT8 *Buffer
|
|
);
|
|
|
|
/**
|
|
Check if it is AML Root name
|
|
|
|
@param[in] Buffer AML path.
|
|
|
|
@retval TRUE AML path is root.
|
|
@retval FALSE AML path is not root.
|
|
**/
|
|
BOOLEAN
|
|
AmlIsRootPath (
|
|
IN UINT8 *Buffer
|
|
);
|
|
|
|
#endif
|