| /****************************************************************************** |
| * |
| * Module Name: nsxfname - Public interfaces to the ACPI subsystem |
| * ACPI Namespace oriented interfaces |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2016, Intel Corp. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions, and the following disclaimer, |
| * without modification. |
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| * substantially similar to the "NO WARRANTY" disclaimer below |
| * ("Disclaimer") and any redistribution must be conditioned upon |
| * including a substantially similar Disclaimer requirement for further |
| * binary redistribution. |
| * 3. Neither the names of the above-listed copyright holders nor the names |
| * of any contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * NO WARRANTY |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGES. |
| */ |
| |
| #define EXPORT_ACPI_INTERFACES |
| |
| #include "acpi.h" |
| #include "accommon.h" |
| #include "acnamesp.h" |
| #include "acparser.h" |
| #include "amlcode.h" |
| |
| |
| #define _COMPONENT ACPI_NAMESPACE |
| ACPI_MODULE_NAME ("nsxfname") |
| |
| /* Local prototypes */ |
| |
| static char * |
| AcpiNsCopyDeviceId ( |
| ACPI_PNP_DEVICE_ID *Dest, |
| ACPI_PNP_DEVICE_ID *Source, |
| char *StringArea); |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiGetHandle |
| * |
| * PARAMETERS: Parent - Object to search under (search scope). |
| * Pathname - Pointer to an asciiz string containing the |
| * name |
| * RetHandle - Where the return handle is returned |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: This routine will search for a caller specified name in the |
| * name space. The caller can restrict the search region by |
| * specifying a non NULL parent. The parent value is itself a |
| * namespace handle. |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiGetHandle ( |
| ACPI_HANDLE Parent, |
| ACPI_STRING Pathname, |
| ACPI_HANDLE *RetHandle) |
| { |
| ACPI_STATUS Status; |
| ACPI_NAMESPACE_NODE *Node = NULL; |
| ACPI_NAMESPACE_NODE *PrefixNode = NULL; |
| |
| |
| ACPI_FUNCTION_ENTRY (); |
| |
| |
| /* Parameter Validation */ |
| |
| if (!RetHandle || !Pathname) |
| { |
| return (AE_BAD_PARAMETER); |
| } |
| |
| /* Convert a parent handle to a prefix node */ |
| |
| if (Parent) |
| { |
| PrefixNode = AcpiNsValidateHandle (Parent); |
| if (!PrefixNode) |
| { |
| return (AE_BAD_PARAMETER); |
| } |
| } |
| |
| /* |
| * Valid cases are: |
| * 1) Fully qualified pathname |
| * 2) Parent + Relative pathname |
| * |
| * Error for <null Parent + relative path> |
| */ |
| if (ACPI_IS_ROOT_PREFIX (Pathname[0])) |
| { |
| /* Pathname is fully qualified (starts with '\') */ |
| |
| /* Special case for root-only, since we can't search for it */ |
| |
| if (!strcmp (Pathname, ACPI_NS_ROOT_PATH)) |
| { |
| *RetHandle = ACPI_CAST_PTR (ACPI_HANDLE, AcpiGbl_RootNode); |
| return (AE_OK); |
| } |
| } |
| else if (!PrefixNode) |
| { |
| /* Relative path with null prefix is disallowed */ |
| |
| return (AE_BAD_PARAMETER); |
| } |
| |
| /* Find the Node and convert to a handle */ |
| |
| Status = AcpiNsGetNode (PrefixNode, Pathname, ACPI_NS_NO_UPSEARCH, &Node); |
| if (ACPI_SUCCESS (Status)) |
| { |
| *RetHandle = ACPI_CAST_PTR (ACPI_HANDLE, Node); |
| } |
| |
| return (Status); |
| } |
| |
| ACPI_EXPORT_SYMBOL (AcpiGetHandle) |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiGetName |
| * |
| * PARAMETERS: Handle - Handle to be converted to a pathname |
| * NameType - Full pathname or single segment |
| * Buffer - Buffer for returned path |
| * |
| * RETURN: Pointer to a string containing the fully qualified Name. |
| * |
| * DESCRIPTION: This routine returns the fully qualified name associated with |
| * the Handle parameter. This and the AcpiPathnameToHandle are |
| * complementary functions. |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiGetName ( |
| ACPI_HANDLE Handle, |
| UINT32 NameType, |
| ACPI_BUFFER *Buffer) |
| { |
| ACPI_STATUS Status; |
| ACPI_NAMESPACE_NODE *Node; |
| const char *NodeName; |
| |
| |
| /* Parameter validation */ |
| |
| if (NameType > ACPI_NAME_TYPE_MAX) |
| { |
| return (AE_BAD_PARAMETER); |
| } |
| |
| Status = AcpiUtValidateBuffer (Buffer); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| if (NameType == ACPI_FULL_PATHNAME || |
| NameType == ACPI_FULL_PATHNAME_NO_TRAILING) |
| { |
| /* Get the full pathname (From the namespace root) */ |
| |
| Status = AcpiNsHandleToPathname (Handle, Buffer, |
| NameType == ACPI_FULL_PATHNAME ? FALSE : TRUE); |
| return (Status); |
| } |
| |
| /* |
| * Wants the single segment ACPI name. |
| * Validate handle and convert to a namespace Node |
| */ |
| Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| Node = AcpiNsValidateHandle (Handle); |
| if (!Node) |
| { |
| Status = AE_BAD_PARAMETER; |
| goto UnlockAndExit; |
| } |
| |
| /* Validate/Allocate/Clear caller buffer */ |
| |
| Status = AcpiUtInitializeBuffer (Buffer, ACPI_PATH_SEGMENT_LENGTH); |
| if (ACPI_FAILURE (Status)) |
| { |
| goto UnlockAndExit; |
| } |
| |
| /* Just copy the ACPI name from the Node and zero terminate it */ |
| |
| NodeName = AcpiUtGetNodeName (Node); |
| ACPI_MOVE_NAME (Buffer->Pointer, NodeName); |
| ((char *) Buffer->Pointer) [ACPI_NAME_SIZE] = 0; |
| Status = AE_OK; |
| |
| |
| UnlockAndExit: |
| |
| (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); |
| return (Status); |
| } |
| |
| ACPI_EXPORT_SYMBOL (AcpiGetName) |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsCopyDeviceId |
| * |
| * PARAMETERS: Dest - Pointer to the destination PNP_DEVICE_ID |
| * Source - Pointer to the source PNP_DEVICE_ID |
| * StringArea - Pointer to where to copy the dest string |
| * |
| * RETURN: Pointer to the next string area |
| * |
| * DESCRIPTION: Copy a single PNP_DEVICE_ID, including the string data. |
| * |
| ******************************************************************************/ |
| |
| static char * |
| AcpiNsCopyDeviceId ( |
| ACPI_PNP_DEVICE_ID *Dest, |
| ACPI_PNP_DEVICE_ID *Source, |
| char *StringArea) |
| { |
| /* Create the destination PNP_DEVICE_ID */ |
| |
| Dest->String = StringArea; |
| Dest->Length = Source->Length; |
| |
| /* Copy actual string and return a pointer to the next string area */ |
| |
| memcpy (StringArea, Source->String, Source->Length); |
| return (StringArea + Source->Length); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiGetObjectInfo |
| * |
| * PARAMETERS: Handle - Object Handle |
| * ReturnBuffer - Where the info is returned |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Returns information about an object as gleaned from the |
| * namespace node and possibly by running several standard |
| * control methods (Such as in the case of a device.) |
| * |
| * For Device and Processor objects, run the Device _HID, _UID, _CID, _STA, |
| * _CLS, _ADR, _SxW, and _SxD methods. |
| * |
| * Note: Allocates the return buffer, must be freed by the caller. |
| * |
| * Note: This interface is intended to be used during the initial device |
| * discovery namespace traversal. Therefore, no complex methods can be |
| * executed, especially those that access operation regions. Therefore, do |
| * not add any additional methods that could cause problems in this area. |
| * this was the fate of the _SUB method which was found to cause such |
| * problems and was removed (11/2015). |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiGetObjectInfo ( |
| ACPI_HANDLE Handle, |
| ACPI_DEVICE_INFO **ReturnBuffer) |
| { |
| ACPI_NAMESPACE_NODE *Node; |
| ACPI_DEVICE_INFO *Info; |
| ACPI_PNP_DEVICE_ID_LIST *CidList = NULL; |
| ACPI_PNP_DEVICE_ID *Hid = NULL; |
| ACPI_PNP_DEVICE_ID *Uid = NULL; |
| ACPI_PNP_DEVICE_ID *Cls = NULL; |
| char *NextIdString; |
| ACPI_OBJECT_TYPE Type; |
| ACPI_NAME Name; |
| UINT8 ParamCount= 0; |
| UINT16 Valid = 0; |
| UINT32 InfoSize; |
| UINT32 i; |
| ACPI_STATUS Status; |
| |
| |
| /* Parameter validation */ |
| |
| if (!Handle || !ReturnBuffer) |
| { |
| return (AE_BAD_PARAMETER); |
| } |
| |
| Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| Node = AcpiNsValidateHandle (Handle); |
| if (!Node) |
| { |
| (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); |
| return (AE_BAD_PARAMETER); |
| } |
| |
| /* Get the namespace node data while the namespace is locked */ |
| |
| InfoSize = sizeof (ACPI_DEVICE_INFO); |
| Type = Node->Type; |
| Name = Node->Name.Integer; |
| |
| if (Node->Type == ACPI_TYPE_METHOD) |
| { |
| ParamCount = Node->Object->Method.ParamCount; |
| } |
| |
| Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| if ((Type == ACPI_TYPE_DEVICE) || |
| (Type == ACPI_TYPE_PROCESSOR)) |
| { |
| /* |
| * Get extra info for ACPI Device/Processor objects only: |
| * Run the Device _HID, _UID, _CLS, and _CID methods. |
| * |
| * Note: none of these methods are required, so they may or may |
| * not be present for this device. The Info->Valid bitfield is used |
| * to indicate which methods were found and run successfully. |
| */ |
| |
| /* Execute the Device._HID method */ |
| |
| Status = AcpiUtExecute_HID (Node, &Hid); |
| if (ACPI_SUCCESS (Status)) |
| { |
| InfoSize += Hid->Length; |
| Valid |= ACPI_VALID_HID; |
| } |
| |
| /* Execute the Device._UID method */ |
| |
| Status = AcpiUtExecute_UID (Node, &Uid); |
| if (ACPI_SUCCESS (Status)) |
| { |
| InfoSize += Uid->Length; |
| Valid |= ACPI_VALID_UID; |
| } |
| |
| /* Execute the Device._CID method */ |
| |
| Status = AcpiUtExecute_CID (Node, &CidList); |
| if (ACPI_SUCCESS (Status)) |
| { |
| /* Add size of CID strings and CID pointer array */ |
| |
| InfoSize += (CidList->ListSize - sizeof (ACPI_PNP_DEVICE_ID_LIST)); |
| Valid |= ACPI_VALID_CID; |
| } |
| |
| /* Execute the Device._CLS method */ |
| |
| Status = AcpiUtExecute_CLS (Node, &Cls); |
| if (ACPI_SUCCESS (Status)) |
| { |
| InfoSize += Cls->Length; |
| Valid |= ACPI_VALID_CLS; |
| } |
| } |
| |
| /* |
| * Now that we have the variable-length data, we can allocate the |
| * return buffer |
| */ |
| Info = ACPI_ALLOCATE_ZEROED (InfoSize); |
| if (!Info) |
| { |
| Status = AE_NO_MEMORY; |
| goto Cleanup; |
| } |
| |
| /* Get the fixed-length data */ |
| |
| if ((Type == ACPI_TYPE_DEVICE) || |
| (Type == ACPI_TYPE_PROCESSOR)) |
| { |
| /* |
| * Get extra info for ACPI Device/Processor objects only: |
| * Run the _STA, _ADR and, SxW, and _SxD methods. |
| * |
| * Notes: none of these methods are required, so they may or may |
| * not be present for this device. The Info->Valid bitfield is used |
| * to indicate which methods were found and run successfully. |
| * |
| * For _STA, if the method does not exist, then (as per the ACPI |
| * specification), the returned CurrentStatus flags will indicate |
| * that the device is present/functional/enabled. Otherwise, the |
| * CurrentStatus flags reflect the value returned from _STA. |
| */ |
| |
| /* Execute the Device._STA method */ |
| |
| Status = AcpiUtExecute_STA (Node, &Info->CurrentStatus); |
| if (ACPI_SUCCESS (Status)) |
| { |
| Valid |= ACPI_VALID_STA; |
| } |
| |
| /* Execute the Device._ADR method */ |
| |
| Status = AcpiUtEvaluateNumericObject (METHOD_NAME__ADR, Node, |
| &Info->Address); |
| if (ACPI_SUCCESS (Status)) |
| { |
| Valid |= ACPI_VALID_ADR; |
| } |
| |
| /* Execute the Device._SxW methods */ |
| |
| Status = AcpiUtExecutePowerMethods (Node, |
| AcpiGbl_LowestDstateNames, ACPI_NUM_SxW_METHODS, |
| Info->LowestDstates); |
| if (ACPI_SUCCESS (Status)) |
| { |
| Valid |= ACPI_VALID_SXWS; |
| } |
| |
| /* Execute the Device._SxD methods */ |
| |
| Status = AcpiUtExecutePowerMethods (Node, |
| AcpiGbl_HighestDstateNames, ACPI_NUM_SxD_METHODS, |
| Info->HighestDstates); |
| if (ACPI_SUCCESS (Status)) |
| { |
| Valid |= ACPI_VALID_SXDS; |
| } |
| } |
| |
| /* |
| * Create a pointer to the string area of the return buffer. |
| * Point to the end of the base ACPI_DEVICE_INFO structure. |
| */ |
| NextIdString = ACPI_CAST_PTR (char, Info->CompatibleIdList.Ids); |
| if (CidList) |
| { |
| /* Point past the CID PNP_DEVICE_ID array */ |
| |
| NextIdString += ((ACPI_SIZE) CidList->Count * sizeof (ACPI_PNP_DEVICE_ID)); |
| } |
| |
| /* |
| * Copy the HID, UID, and CIDs to the return buffer. The variable-length |
| * strings are copied to the reserved area at the end of the buffer. |
| * |
| * For HID and CID, check if the ID is a PCI Root Bridge. |
| */ |
| if (Hid) |
| { |
| NextIdString = AcpiNsCopyDeviceId (&Info->HardwareId, |
| Hid, NextIdString); |
| |
| if (AcpiUtIsPciRootBridge (Hid->String)) |
| { |
| Info->Flags |= ACPI_PCI_ROOT_BRIDGE; |
| } |
| } |
| |
| if (Uid) |
| { |
| NextIdString = AcpiNsCopyDeviceId (&Info->UniqueId, |
| Uid, NextIdString); |
| } |
| |
| if (CidList) |
| { |
| Info->CompatibleIdList.Count = CidList->Count; |
| Info->CompatibleIdList.ListSize = CidList->ListSize; |
| |
| /* Copy each CID */ |
| |
| for (i = 0; i < CidList->Count; i++) |
| { |
| NextIdString = AcpiNsCopyDeviceId (&Info->CompatibleIdList.Ids[i], |
| &CidList->Ids[i], NextIdString); |
| |
| if (AcpiUtIsPciRootBridge (CidList->Ids[i].String)) |
| { |
| Info->Flags |= ACPI_PCI_ROOT_BRIDGE; |
| } |
| } |
| } |
| |
| if (Cls) |
| { |
| NextIdString = AcpiNsCopyDeviceId (&Info->ClassCode, |
| Cls, NextIdString); |
| } |
| |
| /* Copy the fixed-length data */ |
| |
| Info->InfoSize = InfoSize; |
| Info->Type = Type; |
| Info->Name = Name; |
| Info->ParamCount = ParamCount; |
| Info->Valid = Valid; |
| |
| *ReturnBuffer = Info; |
| Status = AE_OK; |
| |
| |
| Cleanup: |
| if (Hid) |
| { |
| ACPI_FREE (Hid); |
| } |
| if (Uid) |
| { |
| ACPI_FREE (Uid); |
| } |
| if (CidList) |
| { |
| ACPI_FREE (CidList); |
| } |
| if (Cls) |
| { |
| ACPI_FREE (Cls); |
| } |
| return (Status); |
| } |
| |
| ACPI_EXPORT_SYMBOL (AcpiGetObjectInfo) |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiInstallMethod |
| * |
| * PARAMETERS: Buffer - An ACPI table containing one control method |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Install a control method into the namespace. If the method |
| * name already exists in the namespace, it is overwritten. The |
| * input buffer must contain a valid DSDT or SSDT containing a |
| * single control method. |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiInstallMethod ( |
| UINT8 *Buffer) |
| { |
| ACPI_TABLE_HEADER *Table = ACPI_CAST_PTR (ACPI_TABLE_HEADER, Buffer); |
| UINT8 *AmlBuffer; |
| UINT8 *AmlStart; |
| char *Path; |
| ACPI_NAMESPACE_NODE *Node; |
| ACPI_OPERAND_OBJECT *MethodObj; |
| ACPI_PARSE_STATE ParserState; |
| UINT32 AmlLength; |
| UINT16 Opcode; |
| UINT8 MethodFlags; |
| ACPI_STATUS Status; |
| |
| |
| /* Parameter validation */ |
| |
| if (!Buffer) |
| { |
| return (AE_BAD_PARAMETER); |
| } |
| |
| /* Table must be a DSDT or SSDT */ |
| |
| if (!ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_DSDT) && |
| !ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_SSDT)) |
| { |
| return (AE_BAD_HEADER); |
| } |
| |
| /* First AML opcode in the table must be a control method */ |
| |
| ParserState.Aml = Buffer + sizeof (ACPI_TABLE_HEADER); |
| Opcode = AcpiPsPeekOpcode (&ParserState); |
| if (Opcode != AML_METHOD_OP) |
| { |
| return (AE_BAD_PARAMETER); |
| } |
| |
| /* Extract method information from the raw AML */ |
| |
| ParserState.Aml += AcpiPsGetOpcodeSize (Opcode); |
| ParserState.PkgEnd = AcpiPsGetNextPackageEnd (&ParserState); |
| Path = AcpiPsGetNextNamestring (&ParserState); |
| |
| MethodFlags = *ParserState.Aml++; |
| AmlStart = ParserState.Aml; |
| AmlLength = ACPI_PTR_DIFF (ParserState.PkgEnd, AmlStart); |
| |
| /* |
| * Allocate resources up-front. We don't want to have to delete a new |
| * node from the namespace if we cannot allocate memory. |
| */ |
| AmlBuffer = ACPI_ALLOCATE (AmlLength); |
| if (!AmlBuffer) |
| { |
| return (AE_NO_MEMORY); |
| } |
| |
| MethodObj = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD); |
| if (!MethodObj) |
| { |
| ACPI_FREE (AmlBuffer); |
| return (AE_NO_MEMORY); |
| } |
| |
| /* Lock namespace for AcpiNsLookup, we may be creating a new node */ |
| |
| Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); |
| if (ACPI_FAILURE (Status)) |
| { |
| goto ErrorExit; |
| } |
| |
| /* The lookup either returns an existing node or creates a new one */ |
| |
| Status = AcpiNsLookup (NULL, Path, ACPI_TYPE_METHOD, ACPI_IMODE_LOAD_PASS1, |
| ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_ERROR_IF_FOUND, NULL, &Node); |
| |
| (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); |
| |
| if (ACPI_FAILURE (Status)) /* NsLookup */ |
| { |
| if (Status != AE_ALREADY_EXISTS) |
| { |
| goto ErrorExit; |
| } |
| |
| /* Node existed previously, make sure it is a method node */ |
| |
| if (Node->Type != ACPI_TYPE_METHOD) |
| { |
| Status = AE_TYPE; |
| goto ErrorExit; |
| } |
| } |
| |
| /* Copy the method AML to the local buffer */ |
| |
| memcpy (AmlBuffer, AmlStart, AmlLength); |
| |
| /* Initialize the method object with the new method's information */ |
| |
| MethodObj->Method.AmlStart = AmlBuffer; |
| MethodObj->Method.AmlLength = AmlLength; |
| |
| MethodObj->Method.ParamCount = (UINT8) |
| (MethodFlags & AML_METHOD_ARG_COUNT); |
| |
| if (MethodFlags & AML_METHOD_SERIALIZED) |
| { |
| MethodObj->Method.InfoFlags = ACPI_METHOD_SERIALIZED; |
| |
| MethodObj->Method.SyncLevel = (UINT8) |
| ((MethodFlags & AML_METHOD_SYNC_LEVEL) >> 4); |
| } |
| |
| /* |
| * Now that it is complete, we can attach the new method object to |
| * the method Node (detaches/deletes any existing object) |
| */ |
| Status = AcpiNsAttachObject (Node, MethodObj, ACPI_TYPE_METHOD); |
| |
| /* |
| * Flag indicates AML buffer is dynamic, must be deleted later. |
| * Must be set only after attach above. |
| */ |
| Node->Flags |= ANOBJ_ALLOCATED_BUFFER; |
| |
| /* Remove local reference to the method object */ |
| |
| AcpiUtRemoveReference (MethodObj); |
| return (Status); |
| |
| |
| ErrorExit: |
| |
| ACPI_FREE (AmlBuffer); |
| ACPI_FREE (MethodObj); |
| return (Status); |
| } |
| |
| ACPI_EXPORT_SYMBOL (AcpiInstallMethod) |
