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| /****************************************************************************** |
| * |
| * Module Name: examples - Example ACPICA code |
| * |
| *****************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * 1. Copyright Notice |
| * |
| * Some or all of this work - Copyright (c) 1999 - 2010, 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. |
| * |
| *****************************************************************************/ |
| |
| |
| /* Set the ACPICA application type for use in include/platform/acenv.h */ |
| |
| #ifndef WIN32 |
| #define WIN32 |
| #endif |
| |
| #define ACPI_DEBUG_OUTPUT |
| |
| /* ACPICA public headers */ |
| |
| #include "acpi.h" |
| |
| #define _COMPONENT ACPI_EXAMPLE |
| ACPI_MODULE_NAME ("examples") |
| |
| |
| /****************************************************************************** |
| * |
| * ACPICA Example Code |
| * |
| * This module contains examples of how the host OS should interface to the |
| * ACPICA subsystem. |
| * |
| * 1) How to use the platform/acenv.h file and how to set configuration |
| * options. |
| * |
| * 2) main - using the debug output mechanism and the error/warning output |
| * macros. |
| * |
| * 3) Two examples of the ACPICA initialization sequence. The first is a |
| * initialization with no "early" ACPI table access. The second shows |
| * how to use ACPICA to obtain the tables very early during kernel |
| * initialization, even before dynamic memory is available. |
| * |
| * 4) How to invoke a control method, including argument setup and how to |
| * access the return value. |
| * |
| *****************************************************************************/ |
| |
| /* Standard Clib headers */ |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| /* Local Prototypes */ |
| |
| ACPI_STATUS |
| InitializeFullAcpi (void); |
| |
| ACPI_STATUS |
| InstallHandlers (void); |
| |
| void |
| ExecuteOSI (void); |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: main |
| * |
| * PARAMETERS: argc, argv |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Main routine. Shows the use of the various output macros, as |
| * well as the use of the debug layer/level globals. |
| * |
| *****************************************************************************/ |
| |
| int ACPI_SYSTEM_XFACE |
| main ( |
| int argc, |
| char **argv) |
| { |
| ACPI_FUNCTION_NAME (Examples-main); |
| |
| |
| InitializeFullAcpi (); |
| |
| /* Enable debug output, example debug print */ |
| |
| AcpiDbgLayer = ACPI_EXAMPLE; |
| AcpiDbgLevel = ACPI_LV_INIT; |
| ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "Example Debug output\n")); |
| |
| /* Example warning and error output */ |
| |
| ACPI_INFO ((AE_INFO, "ACPICA example info message")); |
| ACPI_WARNING ((AE_INFO, "ACPICA example warning message")); |
| ACPI_ERROR ((AE_INFO, "ACPICA example error message")); |
| ACPI_EXCEPTION ((AE_INFO, AE_AML_OPERAND_TYPE, "Example exception message")); |
| |
| ExecuteOSI (); |
| return (0); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * Example ACPICA initialization code. This shows a full initialization with |
| * no early ACPI table access. |
| * |
| *****************************************************************************/ |
| |
| ACPI_STATUS |
| InitializeFullAcpi (void) |
| { |
| ACPI_STATUS Status; |
| |
| |
| /* Initialize the ACPICA subsystem */ |
| |
| Status = AcpiInitializeSubsystem (); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "While initializing ACPICA")); |
| return (Status); |
| } |
| |
| /* Initialize the ACPICA Table Manager and get all ACPI tables */ |
| |
| Status = AcpiInitializeTables (NULL, 16, FALSE); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "While initializing Table Manager")); |
| return (Status); |
| } |
| |
| /* Create the ACPI namespace from ACPI tables */ |
| |
| Status = AcpiLoadTables (); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "While loading ACPI tables")); |
| return (Status); |
| } |
| |
| /* Install local handlers */ |
| |
| Status = InstallHandlers (); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "While installing handlers")); |
| return (Status); |
| } |
| |
| /* Initialize the ACPI hardware */ |
| |
| Status = AcpiEnableSubsystem (ACPI_FULL_INITIALIZATION); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "While enabling ACPICA")); |
| return (Status); |
| } |
| |
| /* Complete the ACPI namespace object initialization */ |
| |
| Status = AcpiInitializeObjects (ACPI_FULL_INITIALIZATION); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "While initializing ACPICA objects")); |
| return (Status); |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * Example ACPICA initialization code with early ACPI table access. This shows |
| * an initialization that requires early access to ACPI tables (before |
| * kernel dynamic memory is available) |
| * |
| *****************************************************************************/ |
| |
| /* |
| * The purpose of this static table array is to avoid the use of kernel |
| * dynamic memory which may not be available during early ACPI table |
| * access. |
| */ |
| #define ACPI_MAX_INIT_TABLES 16 |
| static ACPI_TABLE_DESC TableArray[ACPI_MAX_INIT_TABLES]; |
| |
| |
| /* |
| * This function would be called early in kernel initialization. After this |
| * is called, all ACPI tables are available to the host. |
| */ |
| ACPI_STATUS |
| InitializeAcpiTables (void) |
| { |
| ACPI_STATUS Status; |
| |
| |
| /* Initialize the ACPICA Table Manager and get all ACPI tables */ |
| |
| Status = AcpiInitializeTables (TableArray, ACPI_MAX_INIT_TABLES, TRUE); |
| return (Status); |
| } |
| |
| |
| /* |
| * This function would be called after the kernel is initialized and |
| * dynamic/virtual memory is available. It completes the initialization of |
| * the ACPICA subsystem. |
| */ |
| ACPI_STATUS |
| InitializeAcpi (void) |
| { |
| ACPI_STATUS Status; |
| |
| |
| /* Initialize the ACPICA subsystem */ |
| |
| Status = AcpiInitializeSubsystem (); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| /* Copy the root table list to dynamic memory */ |
| |
| Status = AcpiReallocateRootTable (); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| /* Create the ACPI namespace from ACPI tables */ |
| |
| Status = AcpiLoadTables (); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| /* Install local handlers */ |
| |
| Status = InstallHandlers (); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "While installing handlers")); |
| return (Status); |
| } |
| |
| /* Initialize the ACPI hardware */ |
| |
| Status = AcpiEnableSubsystem (ACPI_FULL_INITIALIZATION); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| /* Complete the ACPI namespace object initialization */ |
| |
| Status = AcpiInitializeObjects (ACPI_FULL_INITIALIZATION); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * Example ACPICA handler and handler installation |
| * |
| *****************************************************************************/ |
| |
| void |
| NotifyHandler ( |
| ACPI_HANDLE Device, |
| UINT32 Value, |
| void *Context) |
| { |
| |
| ACPI_INFO ((AE_INFO, "Received a notify 0x%X", Value)); |
| } |
| |
| |
| ACPI_STATUS |
| InstallHandlers (void) |
| { |
| ACPI_STATUS Status; |
| |
| |
| /* Install global notify handler */ |
| |
| Status = AcpiInstallNotifyHandler (ACPI_ROOT_OBJECT, ACPI_SYSTEM_NOTIFY, |
| NotifyHandler, NULL); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "While installing Notify handler")); |
| return (Status); |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * Example control method execution. |
| * |
| * _OSI is a predefined method that is implemented internally within ACPICA. |
| * |
| * Shows the following elements: |
| * |
| * 1) How to setup a control method argument and argument list |
| * 2) How to setup the return value object |
| * 3) How to invoke AcpiEvaluateObject |
| * 4) How to check the returned ACPI_STATUS |
| * 5) How to analyze the return value |
| * |
| *****************************************************************************/ |
| |
| void |
| ExecuteOSI (void) |
| { |
| ACPI_STATUS Status; |
| ACPI_OBJECT_LIST ArgList; |
| ACPI_OBJECT Arg[1]; |
| ACPI_BUFFER ReturnValue; |
| ACPI_OBJECT *Object; |
| |
| |
| ACPI_INFO ((AE_INFO, "Executing OSI method")); |
| |
| /* Setup input argument */ |
| |
| ArgList.Count = 1; |
| ArgList.Pointer = Arg; |
| |
| Arg[0].Type = ACPI_TYPE_STRING; |
| Arg[0].String.Pointer = "Windows 2001"; |
| Arg[0].String.Length = strlen (Arg[0].String.Pointer); |
| |
| /* Ask ACPICA to allocate space for the return object */ |
| |
| ReturnValue.Length = ACPI_ALLOCATE_BUFFER; |
| |
| Status = AcpiEvaluateObject (NULL, "\\_OSI", &ArgList, &ReturnValue); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "While executing _OSI")); |
| return; |
| } |
| |
| /* Ensure that the return object is large enough */ |
| |
| if (ReturnValue.Length < sizeof (ACPI_OBJECT)) |
| { |
| AcpiOsPrintf ("Return value from _OSI method too small, %.8X\n", |
| ReturnValue.Length); |
| return; |
| } |
| |
| /* Expect an integer return value from execution of _OSI */ |
| |
| Object = ReturnValue.Pointer; |
| if (Object->Type != ACPI_TYPE_INTEGER) |
| { |
| AcpiOsPrintf ("Invalid return type from _OSI, %.2X\n", Object->Type); |
| } |
| |
| ACPI_INFO ((AE_INFO, "_OSI returned 0x%8.8X", (UINT32) Object->Integer.Value)); |
| AcpiOsFree (Object); |
| return; |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * OSL support (only needed to link to the windows OSL) |
| * |
| *****************************************************************************/ |
| |
| FILE *AcpiGbl_DebugFile; |
| |
| ACPI_PHYSICAL_ADDRESS |
| AeLocalGetRootPointer ( |
| void) |
| { |
| |
| return (0); |
| } |
| |