drivers/acpica/utinit.c

0001 /******************************************************************************
0002  *
0003  * Module Name: utinit - Common ACPI subsystem initialization
0004  *
0005  *****************************************************************************/
0006
0007 /******************************************************************************
0008  *
0009  * 1. Copyright Notice
0010  *
0011  * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
0012  * All rights reserved.
0013  *
0014  * 2. License
0015  *
0016  * 2.1. This is your license from Intel Corp. under its intellectual property
0017  * rights.  You may have additional license terms from the party that provided
0018  * you this software, covering your right to use that party's intellectual
0019  * property rights.
0020  *
0021  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
0022  * copy of the source code appearing in this file ("Covered Code") an
0023  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
0024  * base code distributed originally by Intel ("Original Intel Code") to copy,
0025  * make derivatives, distribute, use and display any portion of the Covered
0026  * Code in any form, with the right to sublicense such rights; and
0027  *
0028  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
0029  * license (with the right to sublicense), under only those claims of Intel
0030  * patents that are infringed by the Original Intel Code, to make, use, sell,
0031  * offer to sell, and import the Covered Code and derivative works thereof
0032  * solely to the minimum extent necessary to exercise the above copyright
0033  * license, and in no event shall the patent license extend to any additions
0034  * to or modifications of the Original Intel Code.  No other license or right
0035  * is granted directly or by implication, estoppel or otherwise;
0036  *
0037  * The above copyright and patent license is granted only if the following
0038  * conditions are met:
0039  *
0040  * 3. Conditions
0041  *
0042  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
0043  * Redistribution of source code of any substantial portion of the Covered
0044  * Code or modification with rights to further distribute source must include
0045  * the above Copyright Notice, the above License, this list of Conditions,
0046  * and the following Disclaimer and Export Compliance provision.  In addition,
0047  * Licensee must cause all Covered Code to which Licensee contributes to
0048  * contain a file documenting the changes Licensee made to create that Covered
0049  * Code and the date of any change.  Licensee must include in that file the
0050  * documentation of any changes made by any predecessor Licensee.  Licensee
0051  * must include a prominent statement that the modification is derived,
0052  * directly or indirectly, from Original Intel Code.
0053  *
0054  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
0055  * Redistribution of source code of any substantial portion of the Covered
0056  * Code or modification without rights to further distribute source must
0057  * include the following Disclaimer and Export Compliance provision in the
0058  * documentation and/or other materials provided with distribution.  In
0059  * addition, Licensee may not authorize further sublicense of source of any
0060  * portion of the Covered Code, and must include terms to the effect that the
0061  * license from Licensee to its licensee is limited to the intellectual
0062  * property embodied in the software Licensee provides to its licensee, and
0063  * not to intellectual property embodied in modifications its licensee may
0064  * make.
0065  *
0066  * 3.3. Redistribution of Executable. Redistribution in executable form of any
0067  * substantial portion of the Covered Code or modification must reproduce the
0068  * above Copyright Notice, and the following Disclaimer and Export Compliance
0069  * provision in the documentation and/or other materials provided with the
0070  * distribution.
0071  *
0072  * 3.4. Intel retains all right, title, and interest in and to the Original
0073  * Intel Code.
0074  *
0075  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
0076  * Intel shall be used in advertising or otherwise to promote the sale, use or
0077  * other dealings in products derived from or relating to the Covered Code
0078  * without prior written authorization from Intel.
0079  *
0080  * 4. Disclaimer and Export Compliance
0081  *
0082  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
0083  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
0084  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
0085  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
0086  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
0087  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
0088  * PARTICULAR PURPOSE.
0089  *
0090  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
0091  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
0092  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
0093  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
0094  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
0095  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
0096  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
0097  * LIMITED REMEDY.
0098  *
0099  * 4.3. Licensee shall not export, either directly or indirectly, any of this
0100  * software or system incorporating such software without first obtaining any
0101  * required license or other approval from the U. S. Department of Commerce or
0102  * any other agency or department of the United States Government.  In the
0103  * event Licensee exports any such software from the United States or
0104  * re-exports any such software from a foreign destination, Licensee shall
0105  * ensure that the distribution and export/re-export of the software is in
0106  * compliance with all laws, regulations, orders, or other restrictions of the
0107  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
0108  * any of its subsidiaries will export/re-export any technical data, process,
0109  * software, or service, directly or indirectly, to any country for which the
0110  * United States government or any agency thereof requires an export license,
0111  * other governmental approval, or letter of assurance, without first obtaining
0112  * such license, approval or letter.
0113  *
0114  *****************************************************************************/
0115
0116
0117 #define __UTINIT_C__
0118
0119 #include "acpi.h"
0120 #include "accommon.h"
0121 #include "acnamesp.h"
0122 #include "acevents.h"
0123 #include "actables.h"
0124
0125 #define _COMPONENT          ACPI_UTILITIES
0126         ACPI_MODULE_NAME    ("utinit")
0127
0128 /* Local prototypes */
0129
0130 static void AcpiUtTerminate (
0131     void);
0132
0133
0134 /******************************************************************************
0135  *
0136  * FUNCTION:    AcpiUtTerminate
0137  *
0138  * PARAMETERS:  none
0139  *
0140  * RETURN:      none
0141  *
0142  * DESCRIPTION: Free global memory
0143  *
0144  ******************************************************************************/
0145
0146 static void
0147 AcpiUtTerminate (
0148     void)
0149 {
0150     ACPI_GPE_BLOCK_INFO     *GpeBlock;
0151     ACPI_GPE_BLOCK_INFO     *NextGpeBlock;
0152     ACPI_GPE_XRUPT_INFO     *GpeXruptInfo;
0153     ACPI_GPE_XRUPT_INFO     *NextGpeXruptInfo;
0154
0155
0156     ACPI_FUNCTION_TRACE (UtTerminate);
0157
0158
0159     /* Free global GPE blocks and related info structures */
0160
0161     GpeXruptInfo = AcpiGbl_GpeXruptListHead;
0162     while (GpeXruptInfo)
0163     {
0164         GpeBlock = GpeXruptInfo->GpeBlockListHead;
0165         while (GpeBlock)
0166         {
0167             NextGpeBlock = GpeBlock->Next;
0168             ACPI_FREE (GpeBlock->EventInfo);
0169             ACPI_FREE (GpeBlock->RegisterInfo);
0170             ACPI_FREE (GpeBlock);
0171
0172             GpeBlock = NextGpeBlock;
0173         }
0174         NextGpeXruptInfo = GpeXruptInfo->Next;
0175         ACPI_FREE (GpeXruptInfo);
0176         GpeXruptInfo = NextGpeXruptInfo;
0177     }
0178
0179     return_VOID;
0180 }
0181
0182
0183 /*******************************************************************************
0184  *
0185  * FUNCTION:    AcpiUtSubsystemShutdown
0186  *
0187  * PARAMETERS:  none
0188  *
0189  * RETURN:      none
0190  *
0191  * DESCRIPTION: Shutdown the various subsystems.  Don't delete the mutex
0192  *              objects here -- because the AML debugger may be still running.
0193  *
0194  ******************************************************************************/
0195
0196 void
0197 AcpiUtSubsystemShutdown (
0198     void)
0199 {
0200
0201     ACPI_FUNCTION_TRACE (UtSubsystemShutdown);
0202
0203     /* Just exit if subsystem is already shutdown */
0204
0205     if (AcpiGbl_Shutdown)
0206     {
0207         ACPI_ERROR ((AE_INFO,
0208             "ACPI Subsystem is already terminated"));
0209         return_VOID;
0210     }
0211
0212     /* Subsystem appears active, go ahead and shut it down */
0213
0214     AcpiGbl_Shutdown = TRUE;
0215     AcpiGbl_StartupFlags = 0;
0216     ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
0217         "Shutting down ACPI Subsystem\n"));
0218
0219 #ifndef ACPI_ASL_COMPILER
0220
0221     /* Close the AcpiEvent Handling */
0222
0223     AcpiEvTerminate ();
0224 #endif
0225
0226     /* Close the Namespace */
0227
0228     AcpiNsTerminate ();
0229
0230     /* Delete the ACPI tables */
0231
0232     AcpiTbTerminate ();
0233
0234     /* Close the globals */
0235
0236     AcpiUtTerminate ();
0237
0238     /* Purge the local caches */
0239
0240     (void) AcpiUtDeleteCaches ();
0241     return_VOID;
0242 }
0243
0244