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Diffstat (limited to 'Core/EM/ACPI/AcpiSdtPrivate.h')
| -rw-r--r-- | Core/EM/ACPI/AcpiSdtPrivate.h | 798 |
1 files changed, 798 insertions, 0 deletions
diff --git a/Core/EM/ACPI/AcpiSdtPrivate.h b/Core/EM/ACPI/AcpiSdtPrivate.h new file mode 100644 index 0000000..17ea790 --- /dev/null +++ b/Core/EM/ACPI/AcpiSdtPrivate.h @@ -0,0 +1,798 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2011, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** + +//********************************************************************** +// $Header: /Alaska/BIN/Modules/ACPI/Template/Core/AcpiSdtPrivate.h 2 5/14/11 2:15p Yakovlevs $ +// +// $Revision: 2 $ +// +// $Date: 5/14/11 2:15p $ +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/BIN/Modules/ACPI/Template/Core/AcpiSdtPrivate.h $ +// +// 2 5/14/11 2:15p Yakovlevs +// [TAG] EIP 56526 +// [Category] New Feature +// [Description] ACPI Manipulation Protocol. PI 1.2 Spec Vol 5 Section +// 9. Initial checkin. +// [Files] AcpiCore.c; AcpiCore.h; AcpiSdtPrivate.h; Aml.c; AmlChild.c; +// AmlNamespace.c; AmlOption.c; AmlString.c AcpiSdt.c; +// Protocol\AcpiSdt.h. +// +//********************************************************************** + + +//********************************************************************** +//<AMI_FHDR_START> +// +// Name: AcpiSdtPrivate.h +// +// Description: +// ACPI SDT protocol Private data Definitions. +// +//<AMI_FHDR_END> +//********************************************************************** + +#ifndef _ACPI_SDT_H_ +#define _ACPI_SDT_H_ +#ifdef __cplusplus +extern "C" { +#endif + +#include "AcpiCore.h" +// +// ACPI AML definition +// + +// +// Primary OpCode +// +#define AML_ZERO_OP 0x00 +#define AML_ONE_OP 0x01 +#define AML_ALIAS_OP 0x06 +#define AML_NAME_OP 0x08 +#define AML_BYTE_PREFIX 0x0a +#define AML_WORD_PREFIX 0x0b +#define AML_DWORD_PREFIX 0x0c +#define AML_STRING_PREFIX 0x0d +#define AML_QWORD_PREFIX 0x0e +#define AML_SCOPE_OP 0x10 +#define AML_BUFFER_OP 0x11 +#define AML_PACKAGE_OP 0x12 +#define AML_VAR_PACKAGE_OP 0x13 +#define AML_METHOD_OP 0x14 +#define AML_DUAL_NAME_PREFIX 0x2e +#define AML_MULTI_NAME_PREFIX 0x2f +#define AML_NAME_CHAR_A 0x41 +#define AML_NAME_CHAR_B 0x42 +#define AML_NAME_CHAR_C 0x43 +#define AML_NAME_CHAR_D 0x44 +#define AML_NAME_CHAR_E 0x45 +#define AML_NAME_CHAR_F 0x46 +#define AML_NAME_CHAR_G 0x47 +#define AML_NAME_CHAR_H 0x48 +#define AML_NAME_CHAR_I 0x49 +#define AML_NAME_CHAR_J 0x4a +#define AML_NAME_CHAR_K 0x4b +#define AML_NAME_CHAR_L 0x4c +#define AML_NAME_CHAR_M 0x4d +#define AML_NAME_CHAR_N 0x4e +#define AML_NAME_CHAR_O 0x4f +#define AML_NAME_CHAR_P 0x50 +#define AML_NAME_CHAR_Q 0x51 +#define AML_NAME_CHAR_R 0x52 +#define AML_NAME_CHAR_S 0x53 +#define AML_NAME_CHAR_T 0x54 +#define AML_NAME_CHAR_U 0x55 +#define AML_NAME_CHAR_V 0x56 +#define AML_NAME_CHAR_W 0x57 +#define AML_NAME_CHAR_X 0x58 +#define AML_NAME_CHAR_Y 0x59 +#define AML_NAME_CHAR_Z 0x5a +#define AML_ROOT_CHAR 0x5c +#define AML_PARENT_PREFIX_CHAR 0x5e +#define AML_NAME_CHAR__ 0x5f +#define AML_LOCAL0 0x60 +#define AML_LOCAL1 0x61 +#define AML_LOCAL2 0x62 +#define AML_LOCAL3 0x63 +#define AML_LOCAL4 0x64 +#define AML_LOCAL5 0x65 +#define AML_LOCAL6 0x66 +#define AML_LOCAL7 0x67 +#define AML_ARG0 0x68 +#define AML_ARG1 0x69 +#define AML_ARG2 0x6a +#define AML_ARG3 0x6b +#define AML_ARG4 0x6c +#define AML_ARG5 0x6d +#define AML_ARG6 0x6e +#define AML_STORE_OP 0x70 +#define AML_REF_OF_OP 0x71 +#define AML_ADD_OP 0x72 +#define AML_CONCAT_OP 0x73 +#define AML_SUBTRACT_OP 0x74 +#define AML_INCREMENT_OP 0x75 +#define AML_DECREMENT_OP 0x76 +#define AML_MULTIPLY_OP 0x77 +#define AML_DIVIDE_OP 0x78 +#define AML_SHIFT_LEFT_OP 0x79 +#define AML_SHIFT_RIGHT_OP 0x7a +#define AML_AND_OP 0x7b +#define AML_NAND_OP 0x7c +#define AML_OR_OP 0x7d +#define AML_NOR_OP 0x7e +#define AML_XOR_OP 0x7f +#define AML_NOT_OP 0x80 +#define AML_FIND_SET_LEFT_BIT_OP 0x81 +#define AML_FIND_SET_RIGHT_BIT_OP 0x82 +#define AML_DEREF_OF_OP 0x83 +#define AML_CONCAT_RES_OP 0x84 +#define AML_MOD_OP 0x85 +#define AML_NOTIFY_OP 0x86 +#define AML_SIZE_OF_OP 0x87 +#define AML_INDEX_OP 0x88 +#define AML_MATCH_OP 0x89 +#define AML_CREATE_DWORD_FIELD_OP 0x8a +#define AML_CREATE_WORD_FIELD_OP 0x8b +#define AML_CREATE_BYTE_FIELD_OP 0x8c +#define AML_CREATE_BIT_FIELD_OP 0x8d +#define AML_OBJECT_TYPE_OP 0x8e +#define AML_CREATE_QWORD_FIELD_OP 0x8f +#define AML_LAND_OP 0x90 +#define AML_LOR_OP 0x91 +#define AML_LNOT_OP 0x92 +#define AML_LEQUAL_OP 0x93 +#define AML_LGREATER_OP 0x94 +#define AML_LLESS_OP 0x95 +#define AML_TO_BUFFER_OP 0x96 +#define AML_TO_DEC_STRING_OP 0x97 +#define AML_TO_HEX_STRING_OP 0x98 +#define AML_TO_INTEGER_OP 0x99 +#define AML_TO_STRING_OP 0x9c +#define AML_COPY_OBJECT_OP 0x9d +#define AML_MID_OP 0x9e +#define AML_CONTINUE_OP 0x9f +#define AML_IF_OP 0xa0 +#define AML_ELSE_OP 0xa1 +#define AML_WHILE_OP 0xa2 +#define AML_NOOP_OP 0xa3 +#define AML_RETURN_OP 0xa4 +#define AML_BREAK_OP 0xa5 +#define AML_BREAK_POINT_OP 0xcc +#define AML_ONES_OP 0xff + +// +// Extended OpCode +// +#define AML_EXT_OP 0x5b + +#define AML_EXT_MUTEX_OP 0x01 +#define AML_EXT_EVENT_OP 0x02 +#define AML_EXT_COND_REF_OF_OP 0x12 +#define AML_EXT_CREATE_FIELD_OP 0x13 +#define AML_EXT_LOAD_TABLE_OP 0x1f +#define AML_EXT_LOAD_OP 0x20 +#define AML_EXT_STALL_OP 0x21 +#define AML_EXT_SLEEP_OP 0x22 +#define AML_EXT_ACQUIRE_OP 0x23 +#define AML_EXT_SIGNAL_OP 0x24 +#define AML_EXT_WAIT_OP 0x25 +#define AML_EXT_RESET_OP 0x26 +#define AML_EXT_RELEASE_OP 0x27 +#define AML_EXT_FROM_BCD_OP 0x28 +#define AML_EXT_TO_BCD_OP 0x29 +#define AML_EXT_UNLOAD_OP 0x2a +#define AML_EXT_REVISION_OP 0x30 +#define AML_EXT_DEBUG_OP 0x31 +#define AML_EXT_FATAL_OP 0x32 +#define AML_EXT_TIMER_OP 0x33 +#define AML_EXT_REGION_OP 0x80 +#define AML_EXT_FIELD_OP 0x81 +#define AML_EXT_DEVICE_OP 0x82 +#define AML_EXT_PROCESSOR_OP 0x83 +#define AML_EXT_POWER_RES_OP 0x84 +#define AML_EXT_THERMAL_ZONE_OP 0x85 +#define AML_EXT_INDEX_FIELD_OP 0x86 +#define AML_EXT_BANK_FIELD_OP 0x87 +#define AML_EXT_DATA_REGION_OP 0x88 + +// +// Privacy data structure +// +#define LIST_ENTRY EFI_LIST_ENTRY + +typedef struct _AML_BYTE_ENCODING AML_BYTE_ENCODING; +typedef struct _EFI_AML_NODE_LIST EFI_AML_NODE_LIST; + +// +// AML Node Linked List Signature. +// +#define EFI_AML_NODE_LIST_SIGNATURE SIGNATURE_32 ('E', 'A', 'M', 'L') + +// +// AML Node Linked List Entry definition. +// +// Signature must be set to EFI_AML_NODE_LIST_SIGNATURE +// Link is the linked list data. +// Name is the ACPI node name. +// This is listed for PATH finding. +// Buffer is the ACPI node buffer pointer, the first/second bytes are opcode. +// This buffer should not be freed. +// Size is the total size of this ACPI node buffer. +// Children is the children linked list of this node. +// +#define AML_NAME_SEG_SIZE 4 + +struct _EFI_AML_NODE_LIST { + UINT32 Signature; + UINT8 Name[AML_NAME_SEG_SIZE]; + UINT8 *Buffer; + UINTN Size; + LIST_ENTRY Link; + LIST_ENTRY Children; + EFI_AML_NODE_LIST *Parent; + AML_BYTE_ENCODING *AmlByteEncoding; +}; + +// +// CONTAINING_RECORD - returns a pointer to the structure +// from one of it's elements. +// +#ifndef _CR +#define _CR(Record, TYPE, Field) ((TYPE *) ((CHAR8 *) (Record) - (CHAR8 *) &(((TYPE *) 0)->Field))) +#endif + +#ifndef CR +#define CR(record, TYPE, field, signature) _CR(record, TYPE, field) +#endif + +// +// Define macros to build data structure signatures from characters. +// +#define SIGNATURE_16(A, B) ((A) | (B << 8)) +#define SIGNATURE_32(A, B, C, D) (SIGNATURE_16 (A, B) | (SIGNATURE_16 (C, D) << 16)) +#define SIGNATURE_64(A, B, C, D, E, F, G, H) \ + (SIGNATURE_32 (A, B, C, D) | ((UINT64) (SIGNATURE_32 (E, F, G, H)) << 32)) + + +// +// Containment record for AML Node linked list. +// +#define EFI_AML_NODE_LIST_FROM_LINK(_link) CR (_link, EFI_AML_NODE_LIST, Link, EFI_AML_NODE_LIST_SIGNATURE) + +// +// AML Handle Signature. +// +#define EFI_AML_HANDLE_SIGNATURE SIGNATURE_32 ('E', 'A', 'H', 'S') +#define EFI_AML_ROOT_HANDLE_SIGNATURE SIGNATURE_32 ('E', 'A', 'R', 'H') + +// +// AML Handle Entry definition. +// +// Signature must be set to EFI_AML_HANDLE_SIGNATURE or EFI_AML_ROOT_HANDLE_SIGNATURE +// Buffer is the ACPI node buffer pointer, the first/second bytes are opcode. +// This buffer should not be freed. +// Size is the total size of this ACPI node buffer. +// +typedef struct { + UINT32 Signature; + UINT8 *Buffer; + UINTN Size; + AML_BYTE_ENCODING *AmlByteEncoding; + EFI_ACPI_SDT_HEADER *Table; + BOOLEAN Modified; + BOOLEAN OnBuffer; +} EFI_AML_HANDLE; + +typedef UINT32 AML_OP_PARSE_INDEX; + +#define AML_OP_PARSE_INDEX_GET_OPCODE 0 +#define AML_OP_PARSE_INDEX_GET_TERM1 1 +#define AML_OP_PARSE_INDEX_GET_TERM2 2 +#define AML_OP_PARSE_INDEX_GET_TERM3 3 +#define AML_OP_PARSE_INDEX_GET_TERM4 4 +#define AML_OP_PARSE_INDEX_GET_TERM5 5 +#define AML_OP_PARSE_INDEX_GET_TERM6 6 +#define AML_OP_PARSE_INDEX_GET_SIZE (AML_OP_PARSE_INDEX)-1 + +typedef UINT32 AML_OP_PARSE_FORMAT; +#define AML_NONE 0 +#define AML_OPCODE 1 +#define AML_UINT8 2 +#define AML_UINT16 3 +#define AML_UINT32 4 +#define AML_UINT64 5 +#define AML_NAME 6 +#define AML_STRING 7 +#define AML_OBJECT 8 + +typedef UINT32 AML_OP_ATTRIBUTE; +#define AML_HAS_PKG_LENGTH 0x1 // It is ACPI attribute - if OpCode has PkgLength +#define AML_IS_NAME_CHAR 0x2 // It is ACPI attribute - if this is NameChar +#define AML_HAS_CHILD_OBJ 0x4 // it is ACPI attribute - if OpCode has Child Object. +#define AML_IN_NAMESPACE 0x10000 // It is UEFI SDT attribute - if OpCode will be in NameSpace + // NOTE; Not all OBJECT will be in NameSpace + // For example, BankField | CreateBitField | CreateByteField | CreateDWordField | + // CreateField | CreateQWordField | CreateWordField | Field | IndexField. + +struct _AML_BYTE_ENCODING { + UINT8 OpCode; + UINT8 SubOpCode; + AML_OP_PARSE_INDEX MaxIndex; + AML_OP_PARSE_FORMAT Format[6]; + AML_OP_ATTRIBUTE Attribute; +}; + +// +// AcpiSdt protocol declaration +// + +/** + Returns a requested ACPI table. + + The GetAcpiTable() function returns a pointer to a buffer containing the ACPI table associated + with the Index that was input. The following structures are not considered elements in the list of + ACPI tables: + - Root System Description Pointer (RSD_PTR) + - Root System Description Table (RSDT) + - Extended System Description Table (XSDT) + Version is updated with a bit map containing all the versions of ACPI of which the table is a + member. + + @param[in] Index The zero-based index of the table to retrieve. + @param[out] Table Pointer for returning the table buffer. + @param[out] Version On return, updated with the ACPI versions to which this table belongs. Type + EFI_ACPI_TABLE_VERSION is defined in "Related Definitions" in the + EFI_ACPI_SDT_PROTOCOL. + @param[out] TableKey On return, points to the table key for the specified ACPI system definition table. This + is identical to the table key used in the EFI_ACPI_TABLE_PROTOCOL. + + @retval EFI_SUCCESS The function completed successfully. + @retval EFI_NOT_FOUND The requested index is too large and a table was not found. +**/ +EFI_STATUS +EFIAPI +GetAcpiTable2 ( + IN UINTN Index, + OUT EFI_ACPI_SDT_HEADER **Table, + OUT EFI_ACPI_TABLE_VERSION *Version, + OUT UINTN *TableKey + ); + +/** + Register or unregister a callback when an ACPI table is installed. + + This function registers or unregisters a function which will be called whenever a new ACPI table is + installed. + + @param[in] Register If TRUE, then the specified function will be registered. If FALSE, then the specified + function will be unregistered. + @param[in] Notification Points to the callback function to be registered or unregistered. + + @retval EFI_SUCCESS Callback successfully registered or unregistered. + @retval EFI_INVALID_PARAMETER Notification is NULL + @retval EFI_INVALID_PARAMETER Register is FALSE and Notification does not match a known registration function. +**/ +EFI_STATUS +EFIAPI +RegisterNotify ( + IN BOOLEAN Register, + IN EFI_ACPI_NOTIFICATION_FN Notification + ); + +/** + Create a handle for the first ACPI opcode in an ACPI system description table. + + @param[in] TableKey The table key for the ACPI table, as returned by GetTable(). + @param[out] Handle On return, points to the newly created ACPI handle. + + @retval EFI_SUCCESS Handle created successfully. + @retval EFI_NOT_FOUND TableKey does not refer to a valid ACPI table. +**/ +EFI_STATUS +EFIAPI +OpenSdt ( + IN UINTN TableKey, + OUT EFI_ACPI_HANDLE *Handle + ); + +/** + Create a handle from an ACPI opcode + + @param[in] Buffer Points to the ACPI opcode. + @param[out] Handle Upon return, holds the handle. + + @retval EFI_SUCCESS Success + @retval EFI_INVALID_PARAMETER Buffer is NULL or Handle is NULL or Buffer points to an + invalid opcode. + +**/ +EFI_STATUS +EFIAPI +Open ( + IN VOID *Buffer, + OUT EFI_ACPI_HANDLE *Handle + ); + +/** + Close an ACPI handle. + + @param[in] Handle Returns the handle. + + @retval EFI_SUCCESS Success + @retval EFI_INVALID_PARAMETER Handle is NULL or does not refer to a valid ACPI object. +**/ +EFI_STATUS +EFIAPI +Close ( + IN EFI_ACPI_HANDLE Handle + ); + +/** + Retrieve information about an ACPI object. + + @param[in] Handle ACPI object handle. + @param[in] Index Index of the data to retrieve from the object. In general, indexes read from left-to-right + in the ACPI encoding, with index 0 always being the ACPI opcode. + @param[out] DataType Points to the returned data type or EFI_ACPI_DATA_TYPE_NONE if no data exists + for the specified index. + @param[out] Data Upon return, points to the pointer to the data. + @param[out] DataSize Upon return, points to the size of Data. + + @retval EFI_SUCCESS Success. + @retval EFI_INVALID_PARAMETER Handle is NULL or does not refer to a valid ACPI object. +**/ +EFI_STATUS +EFIAPI +GetOption ( + IN EFI_ACPI_HANDLE Handle, + IN UINTN Index, + OUT EFI_ACPI_DATA_TYPE *DataType, + OUT CONST VOID **Data, + OUT UINTN *DataSize + ); + +/** + Change information about an ACPI object. + + @param[in] Handle ACPI object handle. + @param[in] Index Index of the data to retrieve from the object. In general, indexes read from left-to-right + in the ACPI encoding, with index 0 always being the ACPI opcode. + @param[in] Data Points to the data. + @param[in] DataSize The size of the Data. + + @retval EFI_SUCCESS Success + @retval EFI_INVALID_PARAMETER Handle is NULL or does not refer to a valid ACPI object. + @retval EFI_BAD_BUFFER_SIZE Data cannot be accommodated in the space occupied by + the option. + +**/ +EFI_STATUS +EFIAPI +SetOption ( + IN EFI_ACPI_HANDLE Handle, + IN UINTN Index, + IN CONST VOID *Data, + IN UINTN DataSize + ); + +/** + Return the child ACPI objects. + + @param[in] ParentHandle Parent handle. + @param[in, out] Handle On entry, points to the previously returned handle or NULL to start with the first + handle. On return, points to the next returned ACPI handle or NULL if there are no + child objects. + + @retval EFI_SUCCESS Success + @retval EFI_INVALID_PARAMETER ParentHandle is NULL or does not refer to a valid ACPI object. +**/ +EFI_STATUS +EFIAPI +GetChild ( + IN EFI_ACPI_HANDLE ParentHandle, + IN OUT EFI_ACPI_HANDLE *Handle + ); + +/** + Returns the handle of the ACPI object representing the specified ACPI path + + @param[in] HandleIn Points to the handle of the object representing the starting point for the path search. + @param[in] AcpiPath Points to the ACPI path, which conforms to the ACPI encoded path format. + @param[out] HandleOut On return, points to the ACPI object which represents AcpiPath, relative to + HandleIn. + + @retval EFI_SUCCESS Success + @retval EFI_INVALID_PARAMETER HandleIn is NULL or does not refer to a valid ACPI object. +**/ +EFI_STATUS +EFIAPI +FindPath ( + IN EFI_ACPI_HANDLE HandleIn, + IN VOID *AcpiPath, + OUT EFI_ACPI_HANDLE *HandleOut + ); + +// +// ACPI SDT function +// + +/** + Create a handle from an ACPI opcode + + @param[in] Buffer Points to the ACPI opcode. + @param[in] BufferSize Max buffer size. + @param[out] Handle Upon return, holds the handle. + + @retval EFI_SUCCESS Success + @retval EFI_INVALID_PARAMETER Buffer is NULL or Handle is NULL or Buffer points to an + invalid opcode. + +**/ +EFI_STATUS +SdtOpenEx ( + IN VOID *Buffer, + IN UINTN BufferSize, + OUT EFI_ACPI_HANDLE *Handle + ); + +// +// AML support function +// + +/** + Get AML NameString size. + + @param[in] Buffer AML NameString. + @param[out] BufferSize AML NameString size + + @retval EFI_SUCCESS Success. + @retval EFI_INVALID_PARAMETER Buffer does not refer to a valid AML NameString. +**/ +EFI_STATUS +AmlGetNameStringSize ( + IN UINT8 *Buffer, + OUT UINTN *BufferSize + ); + +/** + This function retuns package length from the buffer. + + @param[in] Buffer AML buffer + @param[out] PkgLength The total length of package. + + @return The byte data count to present the package length. +**/ +UINTN +AmlGetPkgLength ( + IN UINT8 *Buffer, + OUT UINTN *PkgLength + ); + +/** + This function returns AcpiDataType according to AmlType. + + @param[in] AmlType AML Type. + + @return AcpiDataType +**/ +EFI_ACPI_DATA_TYPE +AmlTypeToAcpiType ( + IN AML_OP_PARSE_FORMAT AmlType + ); + +/** + This function returns AmlByteEncoding according to OpCode Byte. + + @param[in] OpByteBuffer OpCode byte buffer. + + @return AmlByteEncoding +**/ +AML_BYTE_ENCODING * +AmlSearchByOpByte ( + IN UINT8 *OpByteBuffer + ); + +/** + Return object size. + + @param[in] AmlByteEncoding AML Byte Encoding. + @param[in] Buffer AML object buffer. + @param[in] MaxBufferSize AML object buffer MAX size. The parser can not parse any data exceed this region. + + @return Size of the object. +**/ +UINTN +AmlGetObjectSize ( + IN AML_BYTE_ENCODING *AmlByteEncoding, + IN UINT8 *Buffer, + IN UINTN MaxBufferSize + ); + +/** + Return object name. + + @param[in] AmlHandle AML handle. + + @return Name of the object. +**/ +CHAR8 * +AmlGetObjectName ( + IN EFI_AML_HANDLE *AmlHandle + ); + +/** + Retrieve information according to AmlHandle + + @param[in] AmlHandle AML handle. + @param[in] Index Index of the data to retrieve from the object. In general, indexes read from left-to-right + in the ACPI encoding, with index 0 always being the ACPI opcode. + @param[out] DataType Points to the returned data type or EFI_ACPI_DATA_TYPE_NONE if no data exists + for the specified index. + @param[out] Data Upon return, points to the pointer to the data. + @param[out] DataSize Upon return, points to the size of Data. + + @retval EFI_SUCCESS Success. + @retval EFI_INVALID_PARAMETER AmlHandle does not refer to a valid ACPI object. +**/ +EFI_STATUS +AmlParseOptionHandleCommon ( + IN EFI_AML_HANDLE *AmlHandle, + IN AML_OP_PARSE_INDEX Index, + OUT EFI_ACPI_DATA_TYPE *DataType, + OUT VOID **Data, + OUT UINTN *DataSize + ); + +/** + Return offset of last option. + + @param[in] AmlHandle AML Handle. + @param[out] Buffer Upon return, points to the offset after last option. + + @retval EFI_SUCCESS Success. + @retval EFI_INVALID_PARAMETER AmlHandle does not refer to a valid ACPI object. +**/ +EFI_STATUS +AmlGetOffsetAfterLastOption ( + IN EFI_AML_HANDLE *AmlHandle, + OUT UINT8 **Buffer + ); + +/** + Return the child ACPI objects from Root Handle. + + @param[in] AmlParentHandle Parent handle. It is Root Handle. + @param[in] AmlHandle The previously returned handle or NULL to start with the first handle. + @param[out] Buffer On return, points to the next returned ACPI handle or NULL if there are no + child objects. + + @retval EFI_SUCCESS Success + @retval EFI_INVALID_PARAMETER ParentHandle is NULL or does not refer to a valid ACPI object. +**/ +EFI_STATUS +AmlGetChildFromRoot ( + IN EFI_AML_HANDLE *AmlParentHandle, + IN EFI_AML_HANDLE *AmlHandle, + OUT VOID **Buffer + ); + +/** + Return the child ACPI objects from Non-Root Handle. + + @param[in] AmlParentHandle Parent handle. It is Non-Root Handle. + @param[in] AmlHandle The previously returned handle or NULL to start with the first handle. + @param[out] Buffer On return, points to the next returned ACPI handle or NULL if there are no + child objects. + + @retval EFI_SUCCESS Success + @retval EFI_INVALID_PARAMETER ParentHandle is NULL or does not refer to a valid ACPI object. +**/ +EFI_STATUS +AmlGetChildFromNonRoot ( + IN EFI_AML_HANDLE *AmlParentHandle, + IN EFI_AML_HANDLE *AmlHandle, + 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 + ); + +/****** DO NOT WRITE BELOW THIS LINE *******/ +#ifdef __cplusplus +} +#endif + +#endif + +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2011, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** |