diff options
Diffstat (limited to 'sys/contrib/dev/acpica/Subsystem/Namespace/nsaccess.c')
| -rw-r--r-- | sys/contrib/dev/acpica/Subsystem/Namespace/nsaccess.c | 742 |
1 files changed, 0 insertions, 742 deletions
diff --git a/sys/contrib/dev/acpica/Subsystem/Namespace/nsaccess.c b/sys/contrib/dev/acpica/Subsystem/Namespace/nsaccess.c deleted file mode 100644 index 47e7785f8852..000000000000 --- a/sys/contrib/dev/acpica/Subsystem/Namespace/nsaccess.c +++ /dev/null @@ -1,742 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsaccess - Top-level functions for accessing ACPI namespace - * $Revision: 119 $ - * - ******************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. - * All rights reserved. - * - * 2. License - * - * 2.1. This is your license from Intel Corp. under its intellectual property - * rights. You may have additional license terms from the party that provided - * you this software, covering your right to use that party's intellectual - * property rights. - * - * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a - * copy of the source code appearing in this file ("Covered Code") an - * irrevocable, perpetual, worldwide license under Intel's copyrights in the - * base code distributed originally by Intel ("Original Intel Code") to copy, - * make derivatives, distribute, use and display any portion of the Covered - * Code in any form, with the right to sublicense such rights; and - * - * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent - * license (with the right to sublicense), under only those claims of Intel - * patents that are infringed by the Original Intel Code, to make, use, sell, - * offer to sell, and import the Covered Code and derivative works thereof - * solely to the minimum extent necessary to exercise the above copyright - * license, and in no event shall the patent license extend to any additions - * to or modifications of the Original Intel Code. No other license or right - * is granted directly or by implication, estoppel or otherwise; - * - * The above copyright and patent license is granted only if the following - * conditions are met: - * - * 3. Conditions - * - * 3.1. Redistribution of Source with Rights to Further Distribute Source. - * Redistribution of source code of any substantial portion of the Covered - * Code or modification with rights to further distribute source must include - * the above Copyright Notice, the above License, this list of Conditions, - * and the following Disclaimer and Export Compliance provision. In addition, - * Licensee must cause all Covered Code to which Licensee contributes to - * contain a file documenting the changes Licensee made to create that Covered - * Code and the date of any change. Licensee must include in that file the - * documentation of any changes made by any predecessor Licensee. Licensee - * must include a prominent statement that the modification is derived, - * directly or indirectly, from Original Intel Code. - * - * 3.2. Redistribution of Source with no Rights to Further Distribute Source. - * Redistribution of source code of any substantial portion of the Covered - * Code or modification without rights to further distribute source must - * include the following Disclaimer and Export Compliance provision in the - * documentation and/or other materials provided with distribution. In - * addition, Licensee may not authorize further sublicense of source of any - * portion of the Covered Code, and must include terms to the effect that the - * license from Licensee to its licensee is limited to the intellectual - * property embodied in the software Licensee provides to its licensee, and - * not to intellectual property embodied in modifications its licensee may - * make. - * - * 3.3. Redistribution of Executable. Redistribution in executable form of any - * substantial portion of the Covered Code or modification must reproduce the - * above Copyright Notice, and the following Disclaimer and Export Compliance - * provision in the documentation and/or other materials provided with the - * distribution. - * - * 3.4. Intel retains all right, title, and interest in and to the Original - * Intel Code. - * - * 3.5. Neither the name Intel nor any other trademark owned or controlled by - * Intel shall be used in advertising or otherwise to promote the sale, use or - * other dealings in products derived from or relating to the Covered Code - * without prior written authorization from Intel. - * - * 4. Disclaimer and Export Compliance - * - * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED - * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE - * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, - * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY - * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY - * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A - * PARTICULAR PURPOSE. - * - * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES - * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR - * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, - * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY - * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL - * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS - * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY - * LIMITED REMEDY. - * - * 4.3. Licensee shall not export, either directly or indirectly, any of this - * software or system incorporating such software without first obtaining any - * required license or other approval from the U. S. Department of Commerce or - * any other agency or department of the United States Government. In the - * event Licensee exports any such software from the United States or - * re-exports any such software from a foreign destination, Licensee shall - * ensure that the distribution and export/re-export of the software is in - * compliance with all laws, regulations, orders, or other restrictions of the - * U.S. Export Administration Regulations. Licensee agrees that neither it nor - * any of its subsidiaries will export/re-export any technical data, process, - * software, or service, directly or indirectly, to any country for which the - * United States government or any agency thereof requires an export license, - * other governmental approval, or letter of assurance, without first obtaining - * such license, approval or letter. - * - *****************************************************************************/ - -#define __NSACCESS_C__ - -#include "acpi.h" -#include "amlcode.h" -#include "acinterp.h" -#include "acnamesp.h" -#include "acdispat.h" - - -#define _COMPONENT NAMESPACE - MODULE_NAME ("nsaccess") - - -/******************************************************************************* - * - * FUNCTION: AcpiNsRootInitialize - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Allocate and initialize the default root named objects - * - * MUTEX: Locks namespace for entire execution - * - ******************************************************************************/ - -ACPI_STATUS -AcpiNsRootInitialize (void) -{ - ACPI_STATUS Status = AE_OK; - PREDEFINED_NAMES *InitVal = NULL; - ACPI_NAMESPACE_NODE *NewNode; - ACPI_OPERAND_OBJECT *ObjDesc; - - - FUNCTION_TRACE ("NsRootInitialize"); - - - AcpiCmAcquireMutex (ACPI_MTX_NAMESPACE); - - /* - * The global root ptr is initially NULL, so a non-NULL value indicates - * that AcpiNsRootInitialize() has already been called; just return. - */ - - if (AcpiGbl_RootNode) - { - Status = AE_OK; - goto UnlockAndExit; - } - - - /* - * Tell the rest of the subsystem that the root is initialized - * (This is OK because the namespace is locked) - */ - - AcpiGbl_RootNode = &AcpiGbl_RootNodeStruct; - - - /* Enter the pre-defined names in the name table */ - - DEBUG_PRINT (ACPI_INFO, - ("Entering predefined name table entries into namespace\n")); - - for (InitVal = AcpiGbl_PreDefinedNames; InitVal->Name; InitVal++) - { - Status = AcpiNsLookup (NULL, InitVal->Name, - (OBJECT_TYPE_INTERNAL) InitVal->Type, - IMODE_LOAD_PASS2, NS_NO_UPSEARCH, - NULL, &NewNode); - - if (ACPI_FAILURE (Status) || (!NewNode)) /* Must be on same line for code converter */ - { - DEBUG_PRINT (ACPI_ERROR, - ("Could not create predefined name %s, %s\n", - InitVal->Name, AcpiCmFormatException (Status))); - } - - /* - * Name entered successfully. - * If entry in PreDefinedNames[] specifies an - * initial value, create the initial value. - */ - - if (InitVal->Val) - { - /* - * Entry requests an initial value, allocate a - * descriptor for it. - */ - - ObjDesc = AcpiCmCreateInternalObject ( - (OBJECT_TYPE_INTERNAL) InitVal->Type); - - if (!ObjDesc) - { - Status = AE_NO_MEMORY; - goto UnlockAndExit; - } - - /* - * Convert value string from table entry to - * internal representation. Only types actually - * used for initial values are implemented here. - */ - - switch (InitVal->Type) - { - - case ACPI_TYPE_INTEGER: - - ObjDesc->Integer.Value = - (ACPI_INTEGER) STRTOUL (InitVal->Val, NULL, 10); - break; - - - case ACPI_TYPE_STRING: - - ObjDesc->String.Length = - (UINT16) STRLEN (InitVal->Val); - - /* - * Allocate a buffer for the string. All - * String.Pointers must be allocated buffers! - * (makes deletion simpler) - */ - ObjDesc->String.Pointer = AcpiCmAllocate ( - (ObjDesc->String.Length + 1)); - if (!ObjDesc->String.Pointer) - { - AcpiCmRemoveReference (ObjDesc); - Status = AE_NO_MEMORY; - goto UnlockAndExit; - } - - STRCPY (ObjDesc->String.Pointer, InitVal->Val); - break; - - - case ACPI_TYPE_MUTEX: - - ObjDesc->Mutex.SyncLevel = - (UINT16) STRTOUL (InitVal->Val, NULL, 10); - - if (STRCMP (InitVal->Name, "_GL_") == 0) - { - /* - * Create a counting semaphore for the - * global lock - */ - Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, - 1, &ObjDesc->Mutex.Semaphore); - - if (ACPI_FAILURE (Status)) - { - goto UnlockAndExit; - } - /* - * We just created the mutex for the - * global lock, save it - */ - - AcpiGbl_GlobalLockSemaphore = ObjDesc->Mutex.Semaphore; - } - - else - { - /* Create a mutex */ - - Status = AcpiOsCreateSemaphore (1, 1, - &ObjDesc->Mutex.Semaphore); - - if (ACPI_FAILURE (Status)) - { - goto UnlockAndExit; - } - } - break; - - - default: - REPORT_ERROR (("Unsupported initial type value %X\n", - InitVal->Type)); - AcpiCmRemoveReference (ObjDesc); - ObjDesc = NULL; - continue; - } - - /* Store pointer to value descriptor in the Node */ - - AcpiNsAttachObject (NewNode, ObjDesc, - ObjDesc->Common.Type); - } - } - - -UnlockAndExit: - AcpiCmReleaseMutex (ACPI_MTX_NAMESPACE); - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiNsLookup - * - * PARAMETERS: PrefixNode - Search scope if name is not fully qualified - * Pathname - Search pathname, in internal format - * (as represented in the AML stream) - * Type - Type associated with name - * InterpreterMode - IMODE_LOAD_PASS2 => add name if not found - * Flags - Flags describing the search restrictions - * WalkState - Current state of the walk - * ReturnNode - Where the Node is placed (if found - * or created successfully) - * - * RETURN: Status - * - * DESCRIPTION: Find or enter the passed name in the name space. - * Log an error if name not found in Exec mode. - * - * MUTEX: Assumes namespace is locked. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiNsLookup ( - ACPI_GENERIC_STATE *ScopeInfo, - NATIVE_CHAR *Pathname, - OBJECT_TYPE_INTERNAL Type, - OPERATING_MODE InterpreterMode, - UINT32 Flags, - ACPI_WALK_STATE *WalkState, - ACPI_NAMESPACE_NODE **ReturnNode) -{ - ACPI_STATUS Status; - ACPI_NAMESPACE_NODE *PrefixNode; - ACPI_NAMESPACE_NODE *CurrentNode = NULL; - ACPI_NAMESPACE_NODE *ScopeToPush = NULL; - ACPI_NAMESPACE_NODE *ThisNode = NULL; - UINT32 NumSegments; - ACPI_NAME SimpleName; - BOOLEAN NullNamePath = FALSE; - OBJECT_TYPE_INTERNAL TypeToCheckFor; - OBJECT_TYPE_INTERNAL ThisSearchType; - UINT32 LocalFlags = Flags & ~NS_ERROR_IF_FOUND; - - DEBUG_EXEC (UINT32 i;) - - - FUNCTION_TRACE ("NsLookup"); - - - if (!ReturnNode) - { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - - AcpiGbl_NsLookupCount++; - - *ReturnNode = ENTRY_NOT_FOUND; - - - if (!AcpiGbl_RootNode) - { - return (AE_NO_NAMESPACE); - } - - /* - * Get the prefix scope. - * A null scope means use the root scope - */ - - if ((!ScopeInfo) || - (!ScopeInfo->Scope.Node)) - { - DEBUG_PRINT (TRACE_NAMES, - ("NsLookup: Null scope prefix, using root node (%p)\n", AcpiGbl_RootNode)); - - PrefixNode = AcpiGbl_RootNode; - } - else - { - PrefixNode = ScopeInfo->Scope.Node; - } - - - /* - * This check is explicitly split provide relax the TypeToCheckFor - * conditions for BankFieldDefn. Originally, both BankFieldDefn and - * DefFieldDefn caused TypeToCheckFor to be set to ACPI_TYPE_REGION, - * but the BankFieldDefn may also check for a Field definition as well - * as an OperationRegion. - */ - - if (INTERNAL_TYPE_DEF_FIELD_DEFN == Type) - { - /* DefFieldDefn defines fields in a Region */ - - TypeToCheckFor = ACPI_TYPE_REGION; - } - - else if (INTERNAL_TYPE_BANK_FIELD_DEFN == Type) - { - /* BankFieldDefn defines data fields in a Field Object */ - - TypeToCheckFor = ACPI_TYPE_ANY; - } - - else - { - TypeToCheckFor = Type; - } - - - /* TBD: [Restructure] - Move the pathname stuff into a new procedure */ - - /* Examine the name pointer */ - - if (!Pathname) - { - /* 8-12-98 ASL Grammar Update supports null NamePath */ - - NullNamePath = TRUE; - NumSegments = 0; - ThisNode = AcpiGbl_RootNode; - - DEBUG_PRINT (TRACE_NAMES, - ("NsLookup: Null Pathname (Zero segments), Flags=%x\n", Flags)); - } - - else - { - /* - * Valid name pointer (Internal name format) - * - * Check for prefixes. As represented in the AML stream, a - * Pathname consists of an optional scope prefix followed by - * a segment part. - * - * If present, the scope prefix is either a RootPrefix (in - * which case the name is fully qualified), or zero or more - * ParentPrefixes (in which case the name's scope is relative - * to the current scope). - * - * The segment part consists of either: - * - A single 4-byte name segment, or - * - A DualNamePrefix followed by two 4-byte name segments, or - * - A MultiNamePrefixOp, followed by a byte indicating the - * number of segments and the segments themselves. - */ - - if (*Pathname == AML_ROOT_PREFIX) - { - /* Pathname is fully qualified, look in root name table */ - - CurrentNode = AcpiGbl_RootNode; - - /* point to segment part */ - - Pathname++; - - DEBUG_PRINT (TRACE_NAMES, - ("NsLookup: Searching from root [%p]\n", - CurrentNode)); - - /* Direct reference to root, "\" */ - - if (!(*Pathname)) - { - ThisNode = AcpiGbl_RootNode; - goto CheckForNewScopeAndExit; - } - } - - else - { - /* Pathname is relative to current scope, start there */ - - CurrentNode = PrefixNode; - - DEBUG_PRINT (TRACE_NAMES, - ("NsLookup: Searching relative to pfx scope [%p]\n", - PrefixNode)); - - /* - * Handle up-prefix (carat). More than one prefix - * is supported - */ - - while (*Pathname == AML_PARENT_PREFIX) - { - /* Point to segment part or next ParentPrefix */ - - Pathname++; - - /* Backup to the parent's scope */ - - ThisNode = AcpiNsGetParentObject (CurrentNode); - if (!ThisNode) - { - /* Current scope has no parent scope */ - - REPORT_ERROR (("Too many parent prefixes (^) - reached root\n")); - return_ACPI_STATUS (AE_NOT_FOUND); - } - - CurrentNode = ThisNode; - } - } - - - /* - * Examine the name prefix opcode, if any, - * to determine the number of segments - */ - - if (*Pathname == AML_DUAL_NAME_PREFIX) - { - NumSegments = 2; - - /* point to first segment */ - - Pathname++; - - DEBUG_PRINT (TRACE_NAMES, - ("NsLookup: Dual Pathname (2 segments, Flags=%X)\n", Flags)); - } - - else if (*Pathname == AML_MULTI_NAME_PREFIX_OP) - { - NumSegments = (UINT32)* (UINT8 *) ++Pathname; - - /* point to first segment */ - - Pathname++; - - DEBUG_PRINT (TRACE_NAMES, - ("NsLookup: Multi Pathname (%d Segments, Flags=%X) \n", - NumSegments, Flags)); - } - - else - { - /* - * No Dual or Multi prefix, hence there is only one - * segment and Pathname is already pointing to it. - */ - NumSegments = 1; - - DEBUG_PRINT (TRACE_NAMES, - ("NsLookup: Simple Pathname (1 segment, Flags=%X)\n", Flags)); - } - -#ifdef ACPI_DEBUG - - /* TBD: [Restructure] Make this a procedure */ - - /* Debug only: print the entire name that we are about to lookup */ - - DEBUG_PRINT (TRACE_NAMES, ("NsLookup: [")); - - for (i = 0; i < NumSegments; i++) - { - DEBUG_PRINT_RAW (TRACE_NAMES, ("%4.4s/", &Pathname[i * 4])); - } - DEBUG_PRINT_RAW (TRACE_NAMES, ("]\n")); -#endif - } - - - /* - * Search namespace for each segment of the name. - * Loop through and verify/add each name segment. - */ - - - while (NumSegments-- && CurrentNode) - { - /* - * Search for the current name segment under the current - * named object. The Type is significant only at the last (topmost) - * level. (We don't care about the types along the path, only - * the type of the final target object.) - */ - ThisSearchType = ACPI_TYPE_ANY; - if (!NumSegments) - { - ThisSearchType = Type; - LocalFlags = Flags; - } - - /* Pluck one ACPI name from the front of the pathname */ - - MOVE_UNALIGNED32_TO_32 (&SimpleName, Pathname); - - /* Try to find the ACPI name */ - - Status = AcpiNsSearchAndEnter (SimpleName, WalkState, - CurrentNode, InterpreterMode, - ThisSearchType, LocalFlags, - &ThisNode); - - if (ACPI_FAILURE (Status)) - { - if (Status == AE_NOT_FOUND) - { - /* Name not found in ACPI namespace */ - - DEBUG_PRINT (TRACE_NAMES, - ("NsLookup: Name [%4.4s] not found in scope %X\n", - &SimpleName, CurrentNode)); - } - - return_ACPI_STATUS (Status); - } - - - /* - * If 1) This is the last segment (NumSegments == 0) - * 2) and looking for a specific type - * (Not checking for TYPE_ANY) - * 3) Which is not an alias - * 4) which is not a local type (TYPE_DEF_ANY) - * 5) which is not a local type (TYPE_SCOPE) - * 6) which is not a local type (TYPE_INDEX_FIELD_DEFN) - * 7) and type of object is known (not TYPE_ANY) - * 8) and object does not match request - * - * Then we have a type mismatch. Just warn and ignore it. - */ - if ((NumSegments == 0) && - (TypeToCheckFor != ACPI_TYPE_ANY) && - (TypeToCheckFor != INTERNAL_TYPE_ALIAS) && - (TypeToCheckFor != INTERNAL_TYPE_DEF_ANY) && - (TypeToCheckFor != INTERNAL_TYPE_SCOPE) && - (TypeToCheckFor != INTERNAL_TYPE_INDEX_FIELD_DEFN) && - (ThisNode->Type != ACPI_TYPE_ANY) && - (ThisNode->Type != TypeToCheckFor)) - { - /* Complain about a type mismatch */ - - REPORT_WARNING ( - ("NsLookup: %4.4s, type %X, checking for type %X\n", - &SimpleName, ThisNode->Type, TypeToCheckFor)); - } - - /* - * If this is the last name segment and we are not looking for a - * specific type, but the type of found object is known, use that type - * to see if it opens a scope. - */ - - if ((0 == NumSegments) && (ACPI_TYPE_ANY == Type)) - { - Type = ThisNode->Type; - } - - if ((NumSegments || AcpiNsOpensScope (Type)) && - (ThisNode->Child == NULL)) - { - /* - * More segments or the type implies enclosed scope, - * and the next scope has not been allocated. - */ - - DEBUG_PRINT (ACPI_INFO, - ("NsLookup: Load mode=%X ThisNode=%X\n", - InterpreterMode, ThisNode)); - } - - CurrentNode = ThisNode; - - /* point to next name segment */ - - Pathname += ACPI_NAME_SIZE; - } - - - /* - * Always check if we need to open a new scope - */ - -CheckForNewScopeAndExit: - - if (!(Flags & NS_DONT_OPEN_SCOPE) && (WalkState)) - { - /* - * If entry is a type which opens a scope, - * push the new scope on the scope stack. - */ - - if (AcpiNsOpensScope (TypeToCheckFor)) - { - /* 8-12-98 ASL Grammar Update supports null NamePath */ - - if (NullNamePath) - { - /* TBD: [Investigate] - is this the correct thing to do? */ - - ScopeToPush = NULL; - } - else - { - ScopeToPush = ThisNode; - } - - Status = AcpiDsScopeStackPush (ScopeToPush, Type, - WalkState); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - DEBUG_PRINT (ACPI_INFO, - ("NsLookup: Set global scope to %p\n", ScopeToPush)); - } - } - - *ReturnNode = ThisNode; - return_ACPI_STATUS (AE_OK); -} - |