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      1       1.1    jruoho /******************************************************************************
      2       1.1    jruoho  *
      3       1.1    jruoho  * Module Name: excreate - Named object creation
      4       1.1    jruoho  *
      5       1.1    jruoho  *****************************************************************************/
      6       1.1    jruoho 
      7  1.1.1.19  christos /******************************************************************************
      8  1.1.1.19  christos  *
      9  1.1.1.19  christos  * 1. Copyright Notice
     10  1.1.1.19  christos  *
     11  1.1.1.20  christos  * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
     12       1.1    jruoho  * All rights reserved.
     13       1.1    jruoho  *
     14  1.1.1.19  christos  * 2. License
     15  1.1.1.19  christos  *
     16  1.1.1.19  christos  * 2.1. This is your license from Intel Corp. under its intellectual property
     17  1.1.1.19  christos  * rights. You may have additional license terms from the party that provided
     18  1.1.1.19  christos  * you this software, covering your right to use that party's intellectual
     19  1.1.1.19  christos  * property rights.
     20  1.1.1.19  christos  *
     21  1.1.1.19  christos  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
     22  1.1.1.19  christos  * copy of the source code appearing in this file ("Covered Code") an
     23  1.1.1.19  christos  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
     24  1.1.1.19  christos  * base code distributed originally by Intel ("Original Intel Code") to copy,
     25  1.1.1.19  christos  * make derivatives, distribute, use and display any portion of the Covered
     26  1.1.1.19  christos  * Code in any form, with the right to sublicense such rights; and
     27  1.1.1.19  christos  *
     28  1.1.1.19  christos  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
     29  1.1.1.19  christos  * license (with the right to sublicense), under only those claims of Intel
     30  1.1.1.19  christos  * patents that are infringed by the Original Intel Code, to make, use, sell,
     31  1.1.1.19  christos  * offer to sell, and import the Covered Code and derivative works thereof
     32  1.1.1.19  christos  * solely to the minimum extent necessary to exercise the above copyright
     33  1.1.1.19  christos  * license, and in no event shall the patent license extend to any additions
     34  1.1.1.19  christos  * to or modifications of the Original Intel Code. No other license or right
     35  1.1.1.19  christos  * is granted directly or by implication, estoppel or otherwise;
     36  1.1.1.19  christos  *
     37  1.1.1.19  christos  * The above copyright and patent license is granted only if the following
     38  1.1.1.19  christos  * conditions are met:
     39  1.1.1.19  christos  *
     40  1.1.1.19  christos  * 3. Conditions
     41  1.1.1.19  christos  *
     42  1.1.1.19  christos  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
     43  1.1.1.19  christos  * Redistribution of source code of any substantial portion of the Covered
     44  1.1.1.19  christos  * Code or modification with rights to further distribute source must include
     45  1.1.1.19  christos  * the above Copyright Notice, the above License, this list of Conditions,
     46  1.1.1.19  christos  * and the following Disclaimer and Export Compliance provision. In addition,
     47  1.1.1.19  christos  * Licensee must cause all Covered Code to which Licensee contributes to
     48  1.1.1.19  christos  * contain a file documenting the changes Licensee made to create that Covered
     49  1.1.1.19  christos  * Code and the date of any change. Licensee must include in that file the
     50  1.1.1.19  christos  * documentation of any changes made by any predecessor Licensee. Licensee
     51  1.1.1.19  christos  * must include a prominent statement that the modification is derived,
     52  1.1.1.19  christos  * directly or indirectly, from Original Intel Code.
     53  1.1.1.19  christos  *
     54  1.1.1.19  christos  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
     55  1.1.1.19  christos  * Redistribution of source code of any substantial portion of the Covered
     56  1.1.1.19  christos  * Code or modification without rights to further distribute source must
     57  1.1.1.19  christos  * include the following Disclaimer and Export Compliance provision in the
     58  1.1.1.19  christos  * documentation and/or other materials provided with distribution. In
     59  1.1.1.19  christos  * addition, Licensee may not authorize further sublicense of source of any
     60  1.1.1.19  christos  * portion of the Covered Code, and must include terms to the effect that the
     61  1.1.1.19  christos  * license from Licensee to its licensee is limited to the intellectual
     62  1.1.1.19  christos  * property embodied in the software Licensee provides to its licensee, and
     63  1.1.1.19  christos  * not to intellectual property embodied in modifications its licensee may
     64  1.1.1.19  christos  * make.
     65  1.1.1.19  christos  *
     66  1.1.1.19  christos  * 3.3. Redistribution of Executable. Redistribution in executable form of any
     67  1.1.1.19  christos  * substantial portion of the Covered Code or modification must reproduce the
     68  1.1.1.19  christos  * above Copyright Notice, and the following Disclaimer and Export Compliance
     69  1.1.1.19  christos  * provision in the documentation and/or other materials provided with the
     70  1.1.1.19  christos  * distribution.
     71  1.1.1.19  christos  *
     72  1.1.1.19  christos  * 3.4. Intel retains all right, title, and interest in and to the Original
     73  1.1.1.19  christos  * Intel Code.
     74  1.1.1.19  christos  *
     75  1.1.1.19  christos  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
     76  1.1.1.19  christos  * Intel shall be used in advertising or otherwise to promote the sale, use or
     77  1.1.1.19  christos  * other dealings in products derived from or relating to the Covered Code
     78  1.1.1.19  christos  * without prior written authorization from Intel.
     79  1.1.1.19  christos  *
     80  1.1.1.19  christos  * 4. Disclaimer and Export Compliance
     81  1.1.1.19  christos  *
     82  1.1.1.19  christos  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
     83  1.1.1.19  christos  * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
     84  1.1.1.19  christos  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
     85  1.1.1.19  christos  * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
     86  1.1.1.19  christos 
     87  1.1.1.19  christos  * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
     88  1.1.1.19  christos  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
     89  1.1.1.19  christos  * PARTICULAR PURPOSE.
     90  1.1.1.19  christos  *
     91  1.1.1.19  christos  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
     92  1.1.1.19  christos  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
     93  1.1.1.19  christos  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
     94  1.1.1.19  christos  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
     95  1.1.1.19  christos  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
     96  1.1.1.19  christos  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
     97  1.1.1.19  christos  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
     98  1.1.1.19  christos  * LIMITED REMEDY.
     99  1.1.1.19  christos  *
    100  1.1.1.19  christos  * 4.3. Licensee shall not export, either directly or indirectly, any of this
    101  1.1.1.19  christos  * software or system incorporating such software without first obtaining any
    102  1.1.1.19  christos  * required license or other approval from the U. S. Department of Commerce or
    103  1.1.1.19  christos  * any other agency or department of the United States Government. In the
    104  1.1.1.19  christos  * event Licensee exports any such software from the United States or
    105  1.1.1.19  christos  * re-exports any such software from a foreign destination, Licensee shall
    106  1.1.1.19  christos  * ensure that the distribution and export/re-export of the software is in
    107  1.1.1.19  christos  * compliance with all laws, regulations, orders, or other restrictions of the
    108  1.1.1.19  christos  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
    109  1.1.1.19  christos  * any of its subsidiaries will export/re-export any technical data, process,
    110  1.1.1.19  christos  * software, or service, directly or indirectly, to any country for which the
    111  1.1.1.19  christos  * United States government or any agency thereof requires an export license,
    112  1.1.1.19  christos  * other governmental approval, or letter of assurance, without first obtaining
    113  1.1.1.19  christos  * such license, approval or letter.
    114  1.1.1.19  christos  *
    115  1.1.1.19  christos  *****************************************************************************
    116  1.1.1.19  christos  *
    117  1.1.1.19  christos  * Alternatively, you may choose to be licensed under the terms of the
    118  1.1.1.19  christos  * following license:
    119  1.1.1.19  christos  *
    120   1.1.1.2    jruoho  * Redistribution and use in source and binary forms, with or without
    121   1.1.1.2    jruoho  * modification, are permitted provided that the following conditions
    122   1.1.1.2    jruoho  * are met:
    123   1.1.1.2    jruoho  * 1. Redistributions of source code must retain the above copyright
    124   1.1.1.2    jruoho  *    notice, this list of conditions, and the following disclaimer,
    125   1.1.1.2    jruoho  *    without modification.
    126   1.1.1.2    jruoho  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    127   1.1.1.2    jruoho  *    substantially similar to the "NO WARRANTY" disclaimer below
    128   1.1.1.2    jruoho  *    ("Disclaimer") and any redistribution must be conditioned upon
    129   1.1.1.2    jruoho  *    including a substantially similar Disclaimer requirement for further
    130   1.1.1.2    jruoho  *    binary redistribution.
    131   1.1.1.2    jruoho  * 3. Neither the names of the above-listed copyright holders nor the names
    132   1.1.1.2    jruoho  *    of any contributors may be used to endorse or promote products derived
    133   1.1.1.2    jruoho  *    from this software without specific prior written permission.
    134   1.1.1.2    jruoho  *
    135   1.1.1.2    jruoho  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    136   1.1.1.2    jruoho  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    137  1.1.1.15  christos  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    138   1.1.1.2    jruoho  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    139  1.1.1.19  christos  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    140  1.1.1.19  christos  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    141  1.1.1.19  christos  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    142  1.1.1.19  christos  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    143  1.1.1.19  christos  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    144  1.1.1.19  christos  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    145  1.1.1.19  christos  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    146  1.1.1.19  christos  *
    147  1.1.1.19  christos  * Alternatively, you may choose to be licensed under the terms of the
    148  1.1.1.19  christos  * GNU General Public License ("GPL") version 2 as published by the Free
    149  1.1.1.19  christos  * Software Foundation.
    150  1.1.1.19  christos  *
    151  1.1.1.19  christos  *****************************************************************************/
    152       1.1    jruoho 
    153       1.1    jruoho #include "acpi.h"
    154       1.1    jruoho #include "accommon.h"
    155       1.1    jruoho #include "acinterp.h"
    156       1.1    jruoho #include "amlcode.h"
    157       1.1    jruoho #include "acnamesp.h"
    158       1.1    jruoho 
    159       1.1    jruoho 
    160       1.1    jruoho #define _COMPONENT          ACPI_EXECUTER
    161       1.1    jruoho         ACPI_MODULE_NAME    ("excreate")
    162       1.1    jruoho 
    163       1.1    jruoho 
    164       1.1    jruoho /*******************************************************************************
    165       1.1    jruoho  *
    166       1.1    jruoho  * FUNCTION:    AcpiExCreateAlias
    167       1.1    jruoho  *
    168       1.1    jruoho  * PARAMETERS:  WalkState            - Current state, contains operands
    169       1.1    jruoho  *
    170       1.1    jruoho  * RETURN:      Status
    171       1.1    jruoho  *
    172       1.1    jruoho  * DESCRIPTION: Create a new named alias
    173       1.1    jruoho  *
    174       1.1    jruoho  ******************************************************************************/
    175       1.1    jruoho 
    176       1.1    jruoho ACPI_STATUS
    177       1.1    jruoho AcpiExCreateAlias (
    178       1.1    jruoho     ACPI_WALK_STATE         *WalkState)
    179       1.1    jruoho {
    180       1.1    jruoho     ACPI_NAMESPACE_NODE     *TargetNode;
    181       1.1    jruoho     ACPI_NAMESPACE_NODE     *AliasNode;
    182       1.1    jruoho     ACPI_STATUS             Status = AE_OK;
    183       1.1    jruoho 
    184       1.1    jruoho 
    185       1.1    jruoho     ACPI_FUNCTION_TRACE (ExCreateAlias);
    186       1.1    jruoho 
    187       1.1    jruoho 
    188       1.1    jruoho     /* Get the source/alias operands (both namespace nodes) */
    189       1.1    jruoho 
    190       1.1    jruoho     AliasNode =  (ACPI_NAMESPACE_NODE *) WalkState->Operands[0];
    191       1.1    jruoho     TargetNode = (ACPI_NAMESPACE_NODE *) WalkState->Operands[1];
    192       1.1    jruoho 
    193       1.1    jruoho     if ((TargetNode->Type == ACPI_TYPE_LOCAL_ALIAS)  ||
    194       1.1    jruoho         (TargetNode->Type == ACPI_TYPE_LOCAL_METHOD_ALIAS))
    195       1.1    jruoho     {
    196       1.1    jruoho         /*
    197       1.1    jruoho          * Dereference an existing alias so that we don't create a chain
    198   1.1.1.4  christos          * of aliases. With this code, we guarantee that an alias is
    199       1.1    jruoho          * always exactly one level of indirection away from the
    200       1.1    jruoho          * actual aliased name.
    201       1.1    jruoho          */
    202       1.1    jruoho         TargetNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, TargetNode->Object);
    203       1.1    jruoho     }
    204       1.1    jruoho 
    205  1.1.1.10  christos     /* Ensure that the target node is valid */
    206       1.1    jruoho 
    207  1.1.1.10  christos     if (!TargetNode)
    208  1.1.1.10  christos     {
    209  1.1.1.10  christos         return_ACPI_STATUS (AE_NULL_OBJECT);
    210  1.1.1.10  christos     }
    211       1.1    jruoho 
    212  1.1.1.10  christos     /* Construct the alias object (a namespace node) */
    213       1.1    jruoho 
    214  1.1.1.10  christos     switch (TargetNode->Type)
    215  1.1.1.10  christos     {
    216       1.1    jruoho     case ACPI_TYPE_METHOD:
    217       1.1    jruoho         /*
    218  1.1.1.10  christos          * Control method aliases need to be differentiated with
    219  1.1.1.10  christos          * a special type
    220       1.1    jruoho          */
    221       1.1    jruoho         AliasNode->Type = ACPI_TYPE_LOCAL_METHOD_ALIAS;
    222       1.1    jruoho         break;
    223       1.1    jruoho 
    224       1.1    jruoho     default:
    225       1.1    jruoho         /*
    226  1.1.1.10  christos          * All other object types.
    227  1.1.1.10  christos          *
    228  1.1.1.10  christos          * The new alias has the type ALIAS and points to the original
    229  1.1.1.10  christos          * NS node, not the object itself.
    230       1.1    jruoho          */
    231  1.1.1.10  christos         AliasNode->Type = ACPI_TYPE_LOCAL_ALIAS;
    232  1.1.1.10  christos         AliasNode->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode);
    233       1.1    jruoho         break;
    234       1.1    jruoho     }
    235       1.1    jruoho 
    236       1.1    jruoho     /* Since both operands are Nodes, we don't need to delete them */
    237       1.1    jruoho 
    238  1.1.1.10  christos     AliasNode->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode);
    239       1.1    jruoho     return_ACPI_STATUS (Status);
    240       1.1    jruoho }
    241       1.1    jruoho 
    242       1.1    jruoho 
    243       1.1    jruoho /*******************************************************************************
    244       1.1    jruoho  *
    245       1.1    jruoho  * FUNCTION:    AcpiExCreateEvent
    246       1.1    jruoho  *
    247       1.1    jruoho  * PARAMETERS:  WalkState           - Current state
    248       1.1    jruoho  *
    249       1.1    jruoho  * RETURN:      Status
    250       1.1    jruoho  *
    251       1.1    jruoho  * DESCRIPTION: Create a new event object
    252       1.1    jruoho  *
    253       1.1    jruoho  ******************************************************************************/
    254       1.1    jruoho 
    255       1.1    jruoho ACPI_STATUS
    256       1.1    jruoho AcpiExCreateEvent (
    257       1.1    jruoho     ACPI_WALK_STATE         *WalkState)
    258       1.1    jruoho {
    259       1.1    jruoho     ACPI_STATUS             Status;
    260       1.1    jruoho     ACPI_OPERAND_OBJECT     *ObjDesc;
    261       1.1    jruoho 
    262       1.1    jruoho 
    263       1.1    jruoho     ACPI_FUNCTION_TRACE (ExCreateEvent);
    264       1.1    jruoho 
    265       1.1    jruoho 
    266       1.1    jruoho     ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_EVENT);
    267       1.1    jruoho     if (!ObjDesc)
    268       1.1    jruoho     {
    269       1.1    jruoho         Status = AE_NO_MEMORY;
    270       1.1    jruoho         goto Cleanup;
    271       1.1    jruoho     }
    272       1.1    jruoho 
    273       1.1    jruoho     /*
    274       1.1    jruoho      * Create the actual OS semaphore, with zero initial units -- meaning
    275       1.1    jruoho      * that the event is created in an unsignalled state
    276       1.1    jruoho      */
    277       1.1    jruoho     Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0,
    278   1.1.1.8  christos         &ObjDesc->Event.OsSemaphore);
    279       1.1    jruoho     if (ACPI_FAILURE (Status))
    280       1.1    jruoho     {
    281       1.1    jruoho         goto Cleanup;
    282       1.1    jruoho     }
    283       1.1    jruoho 
    284       1.1    jruoho     /* Attach object to the Node */
    285       1.1    jruoho 
    286   1.1.1.8  christos     Status = AcpiNsAttachObject (
    287   1.1.1.8  christos         (ACPI_NAMESPACE_NODE *) WalkState->Operands[0],
    288   1.1.1.8  christos         ObjDesc, ACPI_TYPE_EVENT);
    289       1.1    jruoho 
    290       1.1    jruoho Cleanup:
    291       1.1    jruoho     /*
    292       1.1    jruoho      * Remove local reference to the object (on error, will cause deletion
    293       1.1    jruoho      * of both object and semaphore if present.)
    294       1.1    jruoho      */
    295       1.1    jruoho     AcpiUtRemoveReference (ObjDesc);
    296       1.1    jruoho     return_ACPI_STATUS (Status);
    297       1.1    jruoho }
    298       1.1    jruoho 
    299       1.1    jruoho 
    300       1.1    jruoho /*******************************************************************************
    301       1.1    jruoho  *
    302       1.1    jruoho  * FUNCTION:    AcpiExCreateMutex
    303       1.1    jruoho  *
    304       1.1    jruoho  * PARAMETERS:  WalkState           - Current state
    305       1.1    jruoho  *
    306       1.1    jruoho  * RETURN:      Status
    307       1.1    jruoho  *
    308       1.1    jruoho  * DESCRIPTION: Create a new mutex object
    309       1.1    jruoho  *
    310       1.1    jruoho  *              Mutex (Name[0], SyncLevel[1])
    311       1.1    jruoho  *
    312       1.1    jruoho  ******************************************************************************/
    313       1.1    jruoho 
    314       1.1    jruoho ACPI_STATUS
    315       1.1    jruoho AcpiExCreateMutex (
    316       1.1    jruoho     ACPI_WALK_STATE         *WalkState)
    317       1.1    jruoho {
    318       1.1    jruoho     ACPI_STATUS             Status = AE_OK;
    319       1.1    jruoho     ACPI_OPERAND_OBJECT     *ObjDesc;
    320       1.1    jruoho 
    321       1.1    jruoho 
    322       1.1    jruoho     ACPI_FUNCTION_TRACE_PTR (ExCreateMutex, ACPI_WALK_OPERANDS);
    323       1.1    jruoho 
    324       1.1    jruoho 
    325       1.1    jruoho     /* Create the new mutex object */
    326       1.1    jruoho 
    327       1.1    jruoho     ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_MUTEX);
    328       1.1    jruoho     if (!ObjDesc)
    329       1.1    jruoho     {
    330       1.1    jruoho         Status = AE_NO_MEMORY;
    331       1.1    jruoho         goto Cleanup;
    332       1.1    jruoho     }
    333       1.1    jruoho 
    334       1.1    jruoho     /* Create the actual OS Mutex */
    335       1.1    jruoho 
    336       1.1    jruoho     Status = AcpiOsCreateMutex (&ObjDesc->Mutex.OsMutex);
    337       1.1    jruoho     if (ACPI_FAILURE (Status))
    338       1.1    jruoho     {
    339       1.1    jruoho         goto Cleanup;
    340       1.1    jruoho     }
    341       1.1    jruoho 
    342       1.1    jruoho     /* Init object and attach to NS node */
    343       1.1    jruoho 
    344       1.1    jruoho     ObjDesc->Mutex.SyncLevel = (UINT8) WalkState->Operands[1]->Integer.Value;
    345       1.1    jruoho     ObjDesc->Mutex.Node = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0];
    346       1.1    jruoho 
    347   1.1.1.8  christos     Status = AcpiNsAttachObject (
    348   1.1.1.8  christos         ObjDesc->Mutex.Node, ObjDesc, ACPI_TYPE_MUTEX);
    349       1.1    jruoho 
    350       1.1    jruoho 
    351       1.1    jruoho Cleanup:
    352       1.1    jruoho     /*
    353       1.1    jruoho      * Remove local reference to the object (on error, will cause deletion
    354       1.1    jruoho      * of both object and semaphore if present.)
    355       1.1    jruoho      */
    356       1.1    jruoho     AcpiUtRemoveReference (ObjDesc);
    357       1.1    jruoho     return_ACPI_STATUS (Status);
    358       1.1    jruoho }
    359       1.1    jruoho 
    360       1.1    jruoho 
    361       1.1    jruoho /*******************************************************************************
    362       1.1    jruoho  *
    363       1.1    jruoho  * FUNCTION:    AcpiExCreateRegion
    364       1.1    jruoho  *
    365       1.1    jruoho  * PARAMETERS:  AmlStart            - Pointer to the region declaration AML
    366       1.1    jruoho  *              AmlLength           - Max length of the declaration AML
    367   1.1.1.4  christos  *              SpaceId             - Address space ID for the region
    368       1.1    jruoho  *              WalkState           - Current state
    369       1.1    jruoho  *
    370       1.1    jruoho  * RETURN:      Status
    371       1.1    jruoho  *
    372       1.1    jruoho  * DESCRIPTION: Create a new operation region object
    373       1.1    jruoho  *
    374       1.1    jruoho  ******************************************************************************/
    375       1.1    jruoho 
    376       1.1    jruoho ACPI_STATUS
    377       1.1    jruoho AcpiExCreateRegion (
    378       1.1    jruoho     UINT8                   *AmlStart,
    379       1.1    jruoho     UINT32                  AmlLength,
    380   1.1.1.4  christos     UINT8                   SpaceId,
    381       1.1    jruoho     ACPI_WALK_STATE         *WalkState)
    382       1.1    jruoho {
    383       1.1    jruoho     ACPI_STATUS             Status;
    384       1.1    jruoho     ACPI_OPERAND_OBJECT     *ObjDesc;
    385       1.1    jruoho     ACPI_NAMESPACE_NODE     *Node;
    386       1.1    jruoho     ACPI_OPERAND_OBJECT     *RegionObj2;
    387       1.1    jruoho 
    388       1.1    jruoho 
    389       1.1    jruoho     ACPI_FUNCTION_TRACE (ExCreateRegion);
    390       1.1    jruoho 
    391       1.1    jruoho 
    392       1.1    jruoho     /* Get the Namespace Node */
    393       1.1    jruoho 
    394       1.1    jruoho     Node = WalkState->Op->Common.Node;
    395       1.1    jruoho 
    396       1.1    jruoho     /*
    397       1.1    jruoho      * If the region object is already attached to this node,
    398       1.1    jruoho      * just return
    399       1.1    jruoho      */
    400       1.1    jruoho     if (AcpiNsGetAttachedObject (Node))
    401       1.1    jruoho     {
    402       1.1    jruoho         return_ACPI_STATUS (AE_OK);
    403       1.1    jruoho     }
    404       1.1    jruoho 
    405       1.1    jruoho     /*
    406       1.1    jruoho      * Space ID must be one of the predefined IDs, or in the user-defined
    407       1.1    jruoho      * range
    408       1.1    jruoho      */
    409   1.1.1.4  christos     if (!AcpiIsValidSpaceId (SpaceId))
    410       1.1    jruoho     {
    411   1.1.1.4  christos         /*
    412   1.1.1.4  christos          * Print an error message, but continue. We don't want to abort
    413   1.1.1.4  christos          * a table load for this exception. Instead, if the region is
    414   1.1.1.4  christos          * actually used at runtime, abort the executing method.
    415   1.1.1.4  christos          */
    416   1.1.1.8  christos         ACPI_ERROR ((AE_INFO,
    417   1.1.1.8  christos             "Invalid/unknown Address Space ID: 0x%2.2X", SpaceId));
    418       1.1    jruoho     }
    419       1.1    jruoho 
    420       1.1    jruoho     ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Region Type - %s (0x%X)\n",
    421   1.1.1.4  christos         AcpiUtGetRegionName (SpaceId), SpaceId));
    422       1.1    jruoho 
    423       1.1    jruoho     /* Create the region descriptor */
    424       1.1    jruoho 
    425       1.1    jruoho     ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION);
    426       1.1    jruoho     if (!ObjDesc)
    427       1.1    jruoho     {
    428       1.1    jruoho         Status = AE_NO_MEMORY;
    429       1.1    jruoho         goto Cleanup;
    430       1.1    jruoho     }
    431       1.1    jruoho 
    432       1.1    jruoho     /*
    433       1.1    jruoho      * Remember location in AML stream of address & length
    434       1.1    jruoho      * operands since they need to be evaluated at run time.
    435       1.1    jruoho      */
    436   1.1.1.8  christos     RegionObj2 = AcpiNsGetSecondaryObject (ObjDesc);
    437       1.1    jruoho     RegionObj2->Extra.AmlStart = AmlStart;
    438       1.1    jruoho     RegionObj2->Extra.AmlLength = AmlLength;
    439   1.1.1.8  christos     RegionObj2->Extra.Method_REG = NULL;
    440   1.1.1.4  christos     if (WalkState->ScopeInfo)
    441   1.1.1.4  christos     {
    442   1.1.1.4  christos         RegionObj2->Extra.ScopeNode = WalkState->ScopeInfo->Scope.Node;
    443   1.1.1.4  christos     }
    444   1.1.1.4  christos     else
    445   1.1.1.4  christos     {
    446   1.1.1.4  christos         RegionObj2->Extra.ScopeNode = Node;
    447   1.1.1.4  christos     }
    448       1.1    jruoho 
    449       1.1    jruoho     /* Init the region from the operands */
    450       1.1    jruoho 
    451   1.1.1.4  christos     ObjDesc->Region.SpaceId = SpaceId;
    452       1.1    jruoho     ObjDesc->Region.Address = 0;
    453       1.1    jruoho     ObjDesc->Region.Length = 0;
    454  1.1.1.16  christos     ObjDesc->Region.Pointer = NULL;
    455       1.1    jruoho     ObjDesc->Region.Node = Node;
    456   1.1.1.8  christos     ObjDesc->Region.Handler = NULL;
    457   1.1.1.8  christos     ObjDesc->Common.Flags &=
    458   1.1.1.8  christos         ~(AOPOBJ_SETUP_COMPLETE | AOPOBJ_REG_CONNECTED |
    459   1.1.1.8  christos           AOPOBJ_OBJECT_INITIALIZED);
    460       1.1    jruoho 
    461       1.1    jruoho     /* Install the new region object in the parent Node */
    462       1.1    jruoho 
    463       1.1    jruoho     Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_REGION);
    464       1.1    jruoho 
    465       1.1    jruoho 
    466       1.1    jruoho Cleanup:
    467       1.1    jruoho 
    468       1.1    jruoho     /* Remove local reference to the object */
    469       1.1    jruoho 
    470       1.1    jruoho     AcpiUtRemoveReference (ObjDesc);
    471       1.1    jruoho     return_ACPI_STATUS (Status);
    472       1.1    jruoho }
    473       1.1    jruoho 
    474       1.1    jruoho 
    475       1.1    jruoho /*******************************************************************************
    476       1.1    jruoho  *
    477       1.1    jruoho  * FUNCTION:    AcpiExCreateProcessor
    478       1.1    jruoho  *
    479       1.1    jruoho  * PARAMETERS:  WalkState           - Current state
    480       1.1    jruoho  *
    481       1.1    jruoho  * RETURN:      Status
    482       1.1    jruoho  *
    483       1.1    jruoho  * DESCRIPTION: Create a new processor object and populate the fields
    484       1.1    jruoho  *
    485       1.1    jruoho  *              Processor (Name[0], CpuID[1], PblockAddr[2], PblockLength[3])
    486       1.1    jruoho  *
    487       1.1    jruoho  ******************************************************************************/
    488       1.1    jruoho 
    489       1.1    jruoho ACPI_STATUS
    490       1.1    jruoho AcpiExCreateProcessor (
    491       1.1    jruoho     ACPI_WALK_STATE         *WalkState)
    492       1.1    jruoho {
    493       1.1    jruoho     ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
    494       1.1    jruoho     ACPI_OPERAND_OBJECT     *ObjDesc;
    495       1.1    jruoho     ACPI_STATUS             Status;
    496       1.1    jruoho 
    497       1.1    jruoho 
    498       1.1    jruoho     ACPI_FUNCTION_TRACE_PTR (ExCreateProcessor, WalkState);
    499       1.1    jruoho 
    500       1.1    jruoho 
    501       1.1    jruoho     /* Create the processor object */
    502       1.1    jruoho 
    503       1.1    jruoho     ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PROCESSOR);
    504       1.1    jruoho     if (!ObjDesc)
    505       1.1    jruoho     {
    506       1.1    jruoho         return_ACPI_STATUS (AE_NO_MEMORY);
    507       1.1    jruoho     }
    508       1.1    jruoho 
    509       1.1    jruoho     /* Initialize the processor object from the operands */
    510       1.1    jruoho 
    511       1.1    jruoho     ObjDesc->Processor.ProcId = (UINT8) Operand[1]->Integer.Value;
    512       1.1    jruoho     ObjDesc->Processor.Length = (UINT8) Operand[3]->Integer.Value;
    513       1.1    jruoho     ObjDesc->Processor.Address = (ACPI_IO_ADDRESS) Operand[2]->Integer.Value;
    514       1.1    jruoho 
    515       1.1    jruoho     /* Install the processor object in the parent Node */
    516       1.1    jruoho 
    517       1.1    jruoho     Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
    518   1.1.1.8  christos         ObjDesc, ACPI_TYPE_PROCESSOR);
    519       1.1    jruoho 
    520       1.1    jruoho     /* Remove local reference to the object */
    521       1.1    jruoho 
    522       1.1    jruoho     AcpiUtRemoveReference (ObjDesc);
    523       1.1    jruoho     return_ACPI_STATUS (Status);
    524       1.1    jruoho }
    525       1.1    jruoho 
    526       1.1    jruoho 
    527       1.1    jruoho /*******************************************************************************
    528       1.1    jruoho  *
    529       1.1    jruoho  * FUNCTION:    AcpiExCreatePowerResource
    530       1.1    jruoho  *
    531       1.1    jruoho  * PARAMETERS:  WalkState           - Current state
    532       1.1    jruoho  *
    533       1.1    jruoho  * RETURN:      Status
    534       1.1    jruoho  *
    535       1.1    jruoho  * DESCRIPTION: Create a new PowerResource object and populate the fields
    536       1.1    jruoho  *
    537       1.1    jruoho  *              PowerResource (Name[0], SystemLevel[1], ResourceOrder[2])
    538       1.1    jruoho  *
    539       1.1    jruoho  ******************************************************************************/
    540       1.1    jruoho 
    541       1.1    jruoho ACPI_STATUS
    542       1.1    jruoho AcpiExCreatePowerResource (
    543       1.1    jruoho     ACPI_WALK_STATE         *WalkState)
    544       1.1    jruoho {
    545       1.1    jruoho     ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
    546       1.1    jruoho     ACPI_STATUS             Status;
    547       1.1    jruoho     ACPI_OPERAND_OBJECT     *ObjDesc;
    548       1.1    jruoho 
    549       1.1    jruoho 
    550       1.1    jruoho     ACPI_FUNCTION_TRACE_PTR (ExCreatePowerResource, WalkState);
    551       1.1    jruoho 
    552       1.1    jruoho 
    553       1.1    jruoho     /* Create the power resource object */
    554       1.1    jruoho 
    555       1.1    jruoho     ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_POWER);
    556       1.1    jruoho     if (!ObjDesc)
    557       1.1    jruoho     {
    558       1.1    jruoho         return_ACPI_STATUS (AE_NO_MEMORY);
    559       1.1    jruoho     }
    560       1.1    jruoho 
    561       1.1    jruoho     /* Initialize the power object from the operands */
    562       1.1    jruoho 
    563       1.1    jruoho     ObjDesc->PowerResource.SystemLevel = (UINT8) Operand[1]->Integer.Value;
    564       1.1    jruoho     ObjDesc->PowerResource.ResourceOrder = (UINT16) Operand[2]->Integer.Value;
    565       1.1    jruoho 
    566       1.1    jruoho     /* Install the  power resource object in the parent Node */
    567       1.1    jruoho 
    568       1.1    jruoho     Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
    569   1.1.1.8  christos         ObjDesc, ACPI_TYPE_POWER);
    570       1.1    jruoho 
    571       1.1    jruoho     /* Remove local reference to the object */
    572       1.1    jruoho 
    573       1.1    jruoho     AcpiUtRemoveReference (ObjDesc);
    574       1.1    jruoho     return_ACPI_STATUS (Status);
    575       1.1    jruoho }
    576       1.1    jruoho 
    577       1.1    jruoho 
    578       1.1    jruoho /*******************************************************************************
    579       1.1    jruoho  *
    580       1.1    jruoho  * FUNCTION:    AcpiExCreateMethod
    581       1.1    jruoho  *
    582       1.1    jruoho  * PARAMETERS:  AmlStart        - First byte of the method's AML
    583       1.1    jruoho  *              AmlLength       - AML byte count for this method
    584       1.1    jruoho  *              WalkState       - Current state
    585       1.1    jruoho  *
    586       1.1    jruoho  * RETURN:      Status
    587       1.1    jruoho  *
    588       1.1    jruoho  * DESCRIPTION: Create a new method object
    589       1.1    jruoho  *
    590       1.1    jruoho  ******************************************************************************/
    591       1.1    jruoho 
    592       1.1    jruoho ACPI_STATUS
    593       1.1    jruoho AcpiExCreateMethod (
    594       1.1    jruoho     UINT8                   *AmlStart,
    595       1.1    jruoho     UINT32                  AmlLength,
    596       1.1    jruoho     ACPI_WALK_STATE         *WalkState)
    597       1.1    jruoho {
    598       1.1    jruoho     ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
    599       1.1    jruoho     ACPI_OPERAND_OBJECT     *ObjDesc;
    600       1.1    jruoho     ACPI_STATUS             Status;
    601       1.1    jruoho     UINT8                   MethodFlags;
    602       1.1    jruoho 
    603       1.1    jruoho 
    604       1.1    jruoho     ACPI_FUNCTION_TRACE_PTR (ExCreateMethod, WalkState);
    605       1.1    jruoho 
    606       1.1    jruoho 
    607       1.1    jruoho     /* Create a new method object */
    608       1.1    jruoho 
    609       1.1    jruoho     ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD);
    610       1.1    jruoho     if (!ObjDesc)
    611       1.1    jruoho     {
    612       1.1    jruoho        Status = AE_NO_MEMORY;
    613       1.1    jruoho        goto Exit;
    614       1.1    jruoho     }
    615       1.1    jruoho 
    616       1.1    jruoho     /* Save the method's AML pointer and length  */
    617       1.1    jruoho 
    618       1.1    jruoho     ObjDesc->Method.AmlStart = AmlStart;
    619       1.1    jruoho     ObjDesc->Method.AmlLength = AmlLength;
    620   1.1.1.7  christos     ObjDesc->Method.Node = Operand[0];
    621       1.1    jruoho 
    622       1.1    jruoho     /*
    623   1.1.1.2    jruoho      * Disassemble the method flags. Split off the ArgCount, Serialized
    624   1.1.1.2    jruoho      * flag, and SyncLevel for efficiency.
    625       1.1    jruoho      */
    626       1.1    jruoho     MethodFlags = (UINT8) Operand[1]->Integer.Value;
    627   1.1.1.8  christos     ObjDesc->Method.ParamCount = (UINT8)
    628   1.1.1.8  christos         (MethodFlags & AML_METHOD_ARG_COUNT);
    629       1.1    jruoho 
    630       1.1    jruoho     /*
    631       1.1    jruoho      * Get the SyncLevel. If method is serialized, a mutex will be
    632       1.1    jruoho      * created for this method when it is parsed.
    633       1.1    jruoho      */
    634       1.1    jruoho     if (MethodFlags & AML_METHOD_SERIALIZED)
    635       1.1    jruoho     {
    636   1.1.1.2    jruoho         ObjDesc->Method.InfoFlags = ACPI_METHOD_SERIALIZED;
    637   1.1.1.2    jruoho 
    638       1.1    jruoho         /*
    639       1.1    jruoho          * ACPI 1.0: SyncLevel = 0
    640       1.1    jruoho          * ACPI 2.0: SyncLevel = SyncLevel in method declaration
    641       1.1    jruoho          */
    642       1.1    jruoho         ObjDesc->Method.SyncLevel = (UINT8)
    643       1.1    jruoho             ((MethodFlags & AML_METHOD_SYNC_LEVEL) >> 4);
    644       1.1    jruoho     }
    645       1.1    jruoho 
    646       1.1    jruoho     /* Attach the new object to the method Node */
    647       1.1    jruoho 
    648       1.1    jruoho     Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
    649   1.1.1.8  christos         ObjDesc, ACPI_TYPE_METHOD);
    650       1.1    jruoho 
    651       1.1    jruoho     /* Remove local reference to the object */
    652       1.1    jruoho 
    653       1.1    jruoho     AcpiUtRemoveReference (ObjDesc);
    654       1.1    jruoho 
    655       1.1    jruoho Exit:
    656       1.1    jruoho     /* Remove a reference to the operand */
    657       1.1    jruoho 
    658       1.1    jruoho     AcpiUtRemoveReference (Operand[1]);
    659       1.1    jruoho     return_ACPI_STATUS (Status);
    660       1.1    jruoho }
    661