mirrors/acpica
1
0
Fork 0
mirror of https://github.com/acpica/acpica/ synced 2025-01-18 07:29:20 +03:00
Code Issues Packages Projects Releases Wiki Activity

Added type info to TBDs

Browse Source 
date	2000.06.06.22.25.00;	author rmoore1;	state Exp;
This commit is contained in:
aystarik 2005-06-29 18:12:57 +00:00
parent 9cd4b9f950
commit 2a0503a0a4
2 changed files with 740 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

738
source/components/namespace/nsaccess.c Normal file
View File

@ -0,0 +1,738 @@
/******************************************************************************
*
* Module Name: nsaccess - Top-level functions for accessing ACPI namespace
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999, 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 <interp.h>
#include <namesp.h>
#include <dispatch.h>
#define _COMPONENT NAMESPACE
MODULE_NAME ("nsaccess");
/****************************************************************************
*
* FUNCTION: NsRootCreateScope
*
* PARAMETERS: Entry - NTE for which a scope will be created
*
* RETURN: Status
*
* DESCRIPTION: Create a scope table for the given name table entry
*
* MUTEX: Expects namespace to be locked
*
***************************************************************************/
ACPI_STATUS
NsRootCreateScope (
NAME_TABLE_ENTRY *Entry)
{
FUNCTION_TRACE ("NsRootCreateScope");
/* Allocate a scope table */
if (Entry->Scope)
{
return_ACPI_STATUS (AE_EXIST);
}
Entry->Scope = NsAllocateNameTable (NS_TABLE_SIZE);
if (!Entry->Scope)
{
/* root name table allocation failure */
REPORT_ERROR ("Root name table allocation failure");
return_ACPI_STATUS (AE_NO_MEMORY);
}
/*
* Init the scope first entry -- since it is the exemplar of
* the scope (Some fields are duplicated to new entries!)
*/
NsInitializeTable (Entry->Scope, NULL, Entry);
return_ACPI_STATUS (AE_OK);
}
/****************************************************************************
*
* FUNCTION: NsRootInitialize
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Allocate and initialize the root name table
*
* MUTEX: Locks namespace for entire execution
*
***************************************************************************/
ACPI_STATUS
NsRootInitialize (void)
{
ACPI_STATUS Status = AE_OK;
PREDEFINED_NAMES *InitVal = NULL;
NAME_TABLE_ENTRY *NewEntry;
ACPI_OBJECT_INTERNAL *ObjDesc;
FUNCTION_TRACE ("NsRootInitialize");
CmAcquireMutex (MTX_NAMESPACE);
/*
* Root is initially NULL, so a non-NULL value indicates
* that NsRootInitialize() has already been called; just return.
*/
if (Gbl_RootObject->Scope)
{
Status = AE_OK;
goto UnlockAndExit;
}
/* Create the root scope */
Status = NsRootCreateScope (Gbl_RootObject);
if (ACPI_FAILURE (Status))
{
goto UnlockAndExit;
}
/* Enter the pre-defined names in the name table */
DEBUG_PRINT (ACPI_INFO, ("Entering predefined name table entries into namespace\n"));
for (InitVal = Gbl_PreDefinedNames; InitVal->Name; InitVal++)
{
Status = NsLookup (NULL, InitVal->Name, (OBJECT_TYPE_INTERNAL) InitVal->Type,
IMODE_LoadPass2, NS_NO_UPSEARCH, NULL, &NewEntry);
/*
* if name entered successfully
* && its entry in PreDefinedNames[] specifies an initial value
*/
if ((Status == AE_OK) &&
NewEntry && InitVal->Val)
{
/* Entry requests an initial value, allocate a descriptor for it. */
ObjDesc = CmCreateInternalObject ((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_Number:
ObjDesc->Number.Value = (UINT32) 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 = CmAllocate ((ACPI_SIZE) (ObjDesc->String.Length + 1));
if (!ObjDesc->String.Pointer)
{
REPORT_ERROR ("Initial value string allocation failure");
CmRemoveReference (ObjDesc);
Status = AE_NO_MEMORY;
goto UnlockAndExit;
}
STRCPY ((char *) ObjDesc->String.Pointer, InitVal->Val);
break;
case ACPI_TYPE_Mutex:
ObjDesc->Mutex.SyncLevel = (UINT16) STRTOUL (InitVal->Val, NULL, 10);
Status = OsdCreateSemaphore (1, &ObjDesc->Mutex.Semaphore);
if (ACPI_FAILURE (Status))
{
goto UnlockAndExit;
}
if (STRCMP (InitVal->Name, "_GL_") == 0)
{
/* We just created the mutex for the global lock, save it */
Gbl_GlobalLockSemaphore = ObjDesc->Mutex.Semaphore;
}
/* TBD: [Restructure] These fields may be obsolete */
ObjDesc->Mutex.LockCount = 0;
ObjDesc->Mutex.ThreadId = 0;
break;
default:
REPORT_ERROR ("Unsupported initial type value");
CmRemoveReference (ObjDesc);
ObjDesc = NULL;
continue;
}
/* Store pointer to value descriptor in nte */
NsAttachObject (NewEntry, ObjDesc, ObjDesc->Common.Type);
}
}
UnlockAndExit:
CmReleaseMutex (MTX_NAMESPACE);
return_ACPI_STATUS (Status);
}
/****************************************************************************
*
* FUNCTION: NsLookup
*
* PARAMETERS: PrefixScope - Search scope if name is not fully qualified
* Pathname - Name to be entered, in internal format
* as represented in the AML stream
* Type - Type associated with name
* InterpreterMode - IMODE_LoadPass2 => add name if not found
* RetEntry - Where the new entry (NTE) is placed
*
* 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
NsLookup (
ACPI_GENERIC_STATE *ScopeInfo,
char *Pathname,
OBJECT_TYPE_INTERNAL Type,
OPERATING_MODE InterpreterMode,
UINT32 Flags,
ACPI_WALK_STATE *WalkState,
NAME_TABLE_ENTRY **RetEntry)
{
ACPI_STATUS Status;
NAME_TABLE_ENTRY *PrefixScope;
NAME_TABLE_ENTRY *EntryToSearch = NULL;
NAME_TABLE_ENTRY *ThisEntry = NULL;
NAME_TABLE_ENTRY *ScopeToPush = NULL;
UINT32 NumSegments;
UINT32 i;
ACPI_NAME SimpleName;
BOOLEAN NullNamePath = FALSE;
OBJECT_TYPE_INTERNAL TypeToCheckFor;
OBJECT_TYPE_INTERNAL ThisSearchType;
FUNCTION_TRACE ("NsLookup");
if (!RetEntry)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
Gbl_NsLookupCount++;
*RetEntry = ENTRY_NOT_FOUND;
if (!Gbl_RootObject->Scope)
{
/*
* If the name space has not been initialized:
* - In Pass1 of Load mode, we need to initialize it
* before trying to define a name.
* - In Exec mode, there are no names to be found.
*/
if (IMODE_LoadPass1 == InterpreterMode)
{
if ((Status = NsRootInitialize ()) != AE_OK)
{
return_ACPI_STATUS (Status);
}
}
else
{
return_ACPI_STATUS (AE_NOT_FOUND);
}
}
/*
* Get the prefix scope.
* A null scope means use the root scope
*/
if ((!ScopeInfo) ||
(!ScopeInfo->Scope.Entry))
{
PrefixScope = Gbl_RootObject->Scope;
}
else
{
PrefixScope = ScopeInfo->Scope.Entry;
}
/*
* 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_DefFieldDefn == Type)
{
/* DefFieldDefn defines fields in a Region */
TypeToCheckFor = ACPI_TYPE_Region;
}
else if (INTERNAL_TYPE_BankFieldDefn == Type)
{
/* BankFieldDefn defines data fields in a Field Object */
TypeToCheckFor = ACPI_TYPE_Any;
}
else
{
TypeToCheckFor = Type;
}
/* Examine the name pointer */
if (!Pathname)
{
/* 8-12-98 ASL Grammar Update supports null NamePath */
NullNamePath = TRUE;
NumSegments = 0;
ThisEntry = Gbl_RootObject;
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_RootPrefix)
{
/* Pathname is fully qualified, look in root name table */
EntryToSearch = Gbl_RootObject->Scope;
Pathname++; /* point to segment part */
DEBUG_PRINT (TRACE_NAMES, ("NsLookup: Searching from root [%p]\n",
EntryToSearch));
/* Direct reference to root, "\" */
if (!(*Pathname))
{
*RetEntry = Gbl_RootObject;
return_ACPI_STATUS (AE_OK);
}
}
else
{
/* Pathname is relative to current scope, start there */
EntryToSearch = PrefixScope;
DEBUG_PRINT (TRACE_NAMES, ("NsLookup: Searching relative to pfx scope [%p]\n",
PrefixScope));
/* Handle up-prefix (carat). More than one prefix is supported */
while (*Pathname == AML_ParentPrefix)
{
/* Point to segment part or next ParentPrefix */
Pathname++;
/* Backup to the parent's scope */
EntryToSearch = EntryToSearch->ParentEntry;
if (!EntryToSearch)
{
/* Current scope has no parent scope */
REPORT_ERROR ("NsLookup: Too many parent prefixes or scope has no parent");
return_ACPI_STATUS (AE_NOT_FOUND);
}
EntryToSearch = EntryToSearch->Scope;
}
}
/* Examine the name prefix opcode, if any, to determine the number of segments */
if (*Pathname == AML_DualNamePrefix)
{
NumSegments = 2;
Pathname++; /* point to first segment */
DEBUG_PRINT (TRACE_NAMES, ("NsLookup: Dual Pathname (2 segments, Flags=%X)\n", Flags));
}
else if (*Pathname == AML_MultiNamePrefixOp)
{
NumSegments = (INT32)* (UINT8 *) ++Pathname;
Pathname++; /* point to first segment */
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));
}
/* 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"));
}
/*
* Search namespace for each segment of the name.
* Loop through and verify/add each name segment.
*/
while (NumSegments-- && EntryToSearch)
{
/*
* Search for the current segment in the table where it should be.
* Type is significant only at the last (topmost) level.
*/
ThisSearchType = ACPI_TYPE_Any;
if (!NumSegments)
{
ThisSearchType = Type;
}
STORE32TO32 (&SimpleName, Pathname);
Status = NsSearchAndEnter (SimpleName, WalkState, EntryToSearch, InterpreterMode,
ThisSearchType, Flags, &ThisEntry);
if (Status != AE_OK)
{
if (Status == AE_NOT_FOUND)
{
/* Name not in ACPI namespace */
if (IMODE_LoadPass1 == InterpreterMode ||
IMODE_LoadPass2 == InterpreterMode)
{
REPORT_ERROR ("Name table overflow");
}
else
{
DEBUG_PRINT (TRACE_NAMES, ("NsLookup: Name not found in this scope\n"));
}
}
return_ACPI_STATUS (Status);
}
if (NumSegments == 0 && /* If last segment */
TypeToCheckFor != ACPI_TYPE_Any && /* and looking for a specific type */
TypeToCheckFor != INTERNAL_TYPE_DefAny && /* which is not a local type */
TypeToCheckFor != INTERNAL_TYPE_Scope && /* " " " " " " */
TypeToCheckFor != INTERNAL_TYPE_IndexFieldDefn && /* " " " " " " */
ThisEntry->Type != ACPI_TYPE_Any && /* and type of entry is known */
ThisEntry->Type != TypeToCheckFor) /* and entry does not match request */
{ /* complain. */
/* Complain about type mismatch */
REPORT_WARNING ("Type mismatch");
DEBUG_PRINT (ACPI_WARN, ("NsLookup: %4.4s, type 0x%X, checking for type 0x%X\n",
&SimpleName, ThisEntry->Type, TypeToCheckFor));
}
/*
* If last segment and not looking for a specific type, but type of
* found entry is known, use that type to see if it opens a scope.
*/
if ((0 == NumSegments) && (ACPI_TYPE_Any == Type))
{
Type = ThisEntry->Type;
}
if ((NumSegments || NsOpensScope (Type)) &&
(ThisEntry->Scope == NULL))
{
/*
* More segments or the type implies enclosed scope,
* and the next scope has not been allocated.
*/
DEBUG_PRINT (ACPI_INFO, ("NsLookup: Load mode=%d ThisEntry=%x\n", InterpreterMode, ThisEntry));
if ((IMODE_LoadPass1 == InterpreterMode) ||
(IMODE_LoadPass2 == InterpreterMode))
{
/* First or second pass load mode ==> locate the next scope */
DEBUG_PRINT (TRACE_NAMES, ("NsLookup: Creating and adding a new scope\n"));
ThisEntry->Scope = NsAllocateNameTable (NS_TABLE_SIZE);
if (!ThisEntry->Scope)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
}
/* Now complain if there is no next scope */
if (ThisEntry->Scope == NULL)
{
if (IMODE_LoadPass1 == InterpreterMode ||
IMODE_LoadPass2 == InterpreterMode)
{
DEBUG_PRINT (ACPI_ERROR, ("NsLookup: ***Error - No child scope at entry %p\n", ThisEntry));
REPORT_ERROR ("Name Table allocation failure");
return_ACPI_STATUS (AE_NOT_FOUND);
}
DEBUG_PRINT (ACPI_INFO, ("NsLookup: No child scope at entry %p\n", ThisEntry));
return_ACPI_STATUS (AE_NOT_FOUND);
}
/* Scope table initialization */
if (IMODE_LoadPass1 == InterpreterMode ||
IMODE_LoadPass2 == InterpreterMode)
{
/* Initialize the new table */
NsInitializeTable (ThisEntry->Scope, EntryToSearch, ThisEntry);
}
}
EntryToSearch = ThisEntry->Scope;
Pathname += ACPI_NAME_SIZE; /* point to next name segment */
}
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 (NsOpensScope (TypeToCheckFor))
{
/* 8-12-98 ASL Grammar Update supports null NamePath */
if (NullNamePath)
{
ScopeToPush = ThisEntry;
}
else
{
ScopeToPush = ThisEntry->Scope;
}
Status = DsScopeStackPush (ScopeToPush, Type, WalkState);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
DEBUG_PRINT (ACPI_INFO, ("NsLookup: Set global scope to %p\n", ScopeToPush));
}
}
*RetEntry = ThisEntry;
return_ACPI_STATUS (AE_OK);
}

5
source/components/parser/pswalk.c
View File

@ -566,8 +566,7 @@ PsWalkParsedAml (
return_ACPI_STATUS (AE_NO_MEMORY);
}
/* TBD:
* TEMP until we pass WalkState to the interpreter
/* TBD: [Restructure] TEMP until we pass WalkState to the interpreter
*/
PrevWalkList = Gbl_CurrentWalkList;
Gbl_CurrentWalkList = &WalkList;
@ -587,7 +586,7 @@ PsWalkParsedAml (
if (MthDesc)
{
/* Init arguments if this is a control method */
/* TBD: add walkstate as a param */
/* TBD: [Restructure] add walkstate as a param */
DsMethodDataInitArgs (Params, MTH_NUM_ARGS);
}