C++ AcpiFormatException函数代码示例

void
AcpiDmDumpMethodInfo (
    ACPI_STATUS             Status,
    ACPI_WALK_STATE         *WalkState,
    ACPI_PARSE_OBJECT       *Op)
{
    ACPI_PARSE_OBJECT       *Next;
    ACPI_THREAD_STATE       *Thread;
    ACPI_WALK_STATE         *NextWalkState;
    ACPI_NAMESPACE_NODE     *PreviousMethod = NULL;


    /* Ignore control codes, they are not errors */

    if ((Status & AE_CODE_MASK) == AE_CODE_CONTROL)
    {
        return;
    }

    /* We may be executing a deferred opcode */

    if (WalkState->DeferredNode)
    {
        AcpiOsPrintf ("Executing subtree for Buffer/Package/Region\n");
        return;
    }

    /*
     * If there is no Thread, we are not actually executing a method.
     * This can happen when the iASL compiler calls the interpreter
     * to perform constant folding.
     */
    Thread = WalkState->Thread;
    if (!Thread)
    {
        return;
    }

    /* Display exception and method name */

    AcpiOsPrintf ("\n**** Exception %s during execution of method ",
        AcpiFormatException (Status));
    AcpiNsPrintNodePathname (WalkState->MethodNode, NULL);

    /* Display stack of executing methods */

    AcpiOsPrintf ("\n\nMethod Execution Stack:\n");
    NextWalkState = Thread->WalkStateList;

    /* Walk list of linked walk states */

    while (NextWalkState)
    {
        AcpiOsPrintf ("    Method [%4.4s] executing: ",
                AcpiUtGetNodeName (NextWalkState->MethodNode));

        /* First method is the currently executing method */

        if (NextWalkState == WalkState)
        {
            if (Op)
            {
                /* Display currently executing ASL statement */

                Next = Op->Common.Next;
                Op->Common.Next = NULL;

                AcpiDmDisassemble (NextWalkState, Op, ACPI_UINT32_MAX);
                Op->Common.Next = Next;
            }
        }
        else
        {
            /*
             * This method has called another method
             * NOTE: the method call parse subtree is already deleted at this
             * point, so we cannot disassemble the method invocation.
             */
            AcpiOsPrintf ("Call to method ");
            AcpiNsPrintNodePathname (PreviousMethod, NULL);
        }

        PreviousMethod = NextWalkState->MethodNode;
        NextWalkState = NextWalkState->Next;
        AcpiOsPrintf ("\n");
    }

    /* Display the method locals and arguments */

    AcpiOsPrintf ("\n");
    AcpiDmDisplayLocals (WalkState);
    AcpiOsPrintf ("\n");
    AcpiDmDisplayArguments (WalkState);
    AcpiOsPrintf ("\n");
}

void
AcpiDbDisplayInterfaces (
    char                    *ActionArg,
    char                    *InterfaceNameArg)
{
    ACPI_INTERFACE_INFO     *NextInterface;
    char                    *SubString;
    ACPI_STATUS             Status;


    /* If no arguments, just display current interface list */

    if (!ActionArg)
    {
        (void) AcpiOsAcquireMutex (AcpiGbl_OsiMutex,
                    ACPI_WAIT_FOREVER);

        NextInterface = AcpiGbl_SupportedInterfaces;

        while (NextInterface)
        {
            if (!(NextInterface->Flags & ACPI_OSI_INVALID))
            {
                AcpiOsPrintf ("%s\n", NextInterface->Name);
            }
            NextInterface = NextInterface->Next;
        }

        AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
        return;
    }

    /* If ActionArg exists, so must InterfaceNameArg */

    if (!InterfaceNameArg)
    {
        AcpiOsPrintf ("Missing Interface Name argument\n");
        return;
    }

    /* Uppercase the action for match below */

    AcpiUtStrupr (ActionArg);

    /* Install - install an interface */

    SubString = ACPI_STRSTR ("INSTALL", ActionArg);
    if (SubString)
    {
        Status = AcpiInstallInterface (InterfaceNameArg);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("%s, while installing \"%s\"\n",
                AcpiFormatException (Status), InterfaceNameArg);
        }
        return;
    }

    /* Remove - remove an interface */

    SubString = ACPI_STRSTR ("REMOVE", ActionArg);
    if (SubString)
    {
        Status = AcpiRemoveInterface (InterfaceNameArg);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("%s, while removing \"%s\"\n",
                AcpiFormatException (Status), InterfaceNameArg);
        }
        return;
    }

    /* Invalid ActionArg */

    AcpiOsPrintf ("Invalid action argument: %s\n", ActionArg);
    return;
}

static ACPI_STATUS
AcpiDbDeviceResources (
    ACPI_HANDLE             ObjHandle,
    UINT32                  NestingLevel,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_NAMESPACE_NODE     *PrtNode = NULL;
    ACPI_NAMESPACE_NODE     *CrsNode = NULL;
    ACPI_NAMESPACE_NODE     *PrsNode = NULL;
    ACPI_NAMESPACE_NODE     *AeiNode = NULL;
    char                    *ParentPath;
    ACPI_BUFFER             ReturnObj;
    ACPI_STATUS             Status;


    Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
    ParentPath = AcpiNsGetExternalPathname (Node);
    if (!ParentPath)
    {
        return (AE_NO_MEMORY);
    }

    /* Get handles to the resource methods for this device */

    (void) AcpiGetHandle (Node, METHOD_NAME__PRT, ACPI_CAST_PTR (ACPI_HANDLE, &PrtNode));
    (void) AcpiGetHandle (Node, METHOD_NAME__CRS, ACPI_CAST_PTR (ACPI_HANDLE, &CrsNode));
    (void) AcpiGetHandle (Node, METHOD_NAME__PRS, ACPI_CAST_PTR (ACPI_HANDLE, &PrsNode));
    (void) AcpiGetHandle (Node, METHOD_NAME__AEI, ACPI_CAST_PTR (ACPI_HANDLE, &AeiNode));
    if (!PrtNode && !CrsNode && !PrsNode && !AeiNode)
    {
        goto Cleanup;   /* Nothing to do */
    }

    AcpiOsPrintf ("\nDevice: %s\n", ParentPath);

    /* Prepare for a return object of arbitrary size */

    ReturnObj.Pointer = AcpiGbl_DbBuffer;
    ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;


    /* _PRT */

    if (PrtNode)
    {
        AcpiOsPrintf ("Evaluating _PRT\n");

        Status = AcpiEvaluateObject (PrtNode, NULL, NULL, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("Could not evaluate _PRT: %s\n",
                AcpiFormatException (Status));
            goto GetCrs;
        }

        ReturnObj.Pointer = AcpiGbl_DbBuffer;
        ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;

        Status = AcpiGetIrqRoutingTable (Node, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("GetIrqRoutingTable failed: %s\n",
                AcpiFormatException (Status));
            goto GetCrs;
        }

        AcpiRsDumpIrqList (ACPI_CAST_PTR (UINT8, AcpiGbl_DbBuffer));
    }


    /* _CRS */

GetCrs:
    if (CrsNode)
    {
        AcpiOsPrintf ("Evaluating _CRS\n");

        ReturnObj.Pointer = AcpiGbl_DbBuffer;
        ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;

        Status = AcpiEvaluateObject (CrsNode, NULL, NULL, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("Could not evaluate _CRS: %s\n",
                AcpiFormatException (Status));
            goto GetPrs;
        }

        /* This code is here to exercise the AcpiWalkResources interface */

        Status = AcpiWalkResources (Node, METHOD_NAME__CRS,
            AcpiDbResourceCallback, NULL);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("AcpiWalkResources failed: %s\n",
                AcpiFormatException (Status));
            goto GetPrs;
        }
//.........这里部分代码省略.........

void
AcpiDbExecute (
    NATIVE_CHAR             *Name,
    NATIVE_CHAR             **Args,
    UINT32                  Flags)
{
    ACPI_STATUS             Status;
    ACPI_BUFFER             ReturnObj;


#ifdef ACPI_DEBUG
    UINT32                  PreviousAllocations;
    UINT32                  Allocations;


    /* Memory allocation tracking */

    PreviousAllocations = AcpiDbGetOutstandingAllocations ();
#endif

    AcpiGbl_DbMethodInfo.Name = Name;
    AcpiGbl_DbMethodInfo.Args = Args;
    AcpiGbl_DbMethodInfo.Flags = Flags;

    AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
    Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, &ReturnObj);

    /*
     * Allow any handlers in separate threads to complete.
     * (Such as Notify handlers invoked from AML executed above).
     */
    AcpiOsSleep (0, 10);


#ifdef ACPI_DEBUG

    /* Memory allocation tracking */

    Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations;

    AcpiDbSetOutputDestination (DB_DUPLICATE_OUTPUT);

    if (Allocations > 0)
    {
        AcpiOsPrintf ("Outstanding: %ld allocations after execution\n",
                        Allocations);
    }
#endif

    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Execution of %s failed with status %s\n",
            AcpiGbl_DbMethodInfo.Pathname, AcpiFormatException (Status));
    }

    else
    {
        /* Display a return object, if any */

        if (ReturnObj.Length)
        {
            AcpiOsPrintf ("Execution of %s returned object %p Buflen %X\n",
                AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer, ReturnObj.Length);
            AcpiDbDumpObject (ReturnObj.Pointer, 1);
        }
    }

    AcpiDbSetOutputDestination (DB_CONSOLE_OUTPUT);
}

//.........这里部分代码省略.........

        Status = AcpiNsEvaluate (Info);
    }

    /*
     * If we are expecting a return value, and all went well above,
     * copy the return value to an external object.
     */
    if (ReturnBuffer)
    {
        if (!Info->ReturnObject)
        {
            ReturnBuffer->Length = 0;
        }
        else
        {
            if (ACPI_GET_DESCRIPTOR_TYPE (Info->ReturnObject) ==
                    ACPI_DESC_TYPE_NAMED)
            {
                /*
                 * If we received a NS Node as a return object, this means that
                 * the object we are evaluating has nothing interesting to
                 * return (such as a mutex, etc.)  We return an error because
                 * these types are essentially unsupported by this interface.
                 * We don't check up front because this makes it easier to add
                 * support for various types at a later date if necessary.
                 */
                Status = AE_TYPE;
                Info->ReturnObject = NULL;   /* No need to delete a NS Node */
                ReturnBuffer->Length = 0;
            }

            if (ACPI_SUCCESS (Status))
            {
                /* Dereference Index and RefOf references */

                AcpiNsResolveReferences (Info);

                /* Get the size of the returned object */

                Status = AcpiUtGetObjectSize (Info->ReturnObject,
                                              &BufferSpaceNeeded);
                if (ACPI_SUCCESS (Status))
                {
                    /* Validate/Allocate/Clear caller buffer */

                    Status = AcpiUtInitializeBuffer (ReturnBuffer,
                                                     BufferSpaceNeeded);
                    if (ACPI_FAILURE (Status))
                    {
                        /*
                         * Caller's buffer is too small or a new one can't
                         * be allocated
                         */
                        ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
                                           "Needed buffer size %X, %s\n",
                                           (UINT32) BufferSpaceNeeded,
                                           AcpiFormatException (Status)));
                    }
                    else
                    {
                        /* We have enough space for the object, build it */

                        Status = AcpiUtCopyIobjectToEobject (Info->ReturnObject,
                                                             ReturnBuffer);
                    }
                }
            }
        }
    }

    if (Info->ReturnObject)
    {
        /*
         * Delete the internal return object. NOTE: Interpreter must be
         * locked to avoid race condition.
         */
        AcpiExEnterInterpreter ();

        /* Remove one reference on the return object (should delete it) */

        AcpiUtRemoveReference (Info->ReturnObject);
        AcpiExExitInterpreter ();
    }


Cleanup:

    /* Free the input parameter list (if we created one) */

    if (Info->Parameters)
    {
        /* Free the allocated parameter block */

        AcpiUtDeleteInternalObjectList (Info->Parameters);
    }

    ACPI_FREE (Info);
    return_ACPI_STATUS (Status);
}

static void
AcpiDbDoOneSleepState (
    UINT8                   SleepState)
{
    ACPI_STATUS             Status;
    UINT8                   SleepTypeA;
    UINT8                   SleepTypeB;


    /* Validate parameter */

    if (SleepState > ACPI_S_STATES_MAX)
    {
        AcpiOsPrintf ("Sleep state %d out of range (%d max)\n",
            SleepState, ACPI_S_STATES_MAX);
        return;
    }

    AcpiOsPrintf ("\n---- Invoking sleep state S%d (%s):\n",
        SleepState, AcpiGbl_SleepStateNames[SleepState]);

    /* Get the values for the sleep type registers (for display only) */

    Status = AcpiGetSleepTypeData (SleepState, &SleepTypeA, &SleepTypeB);
    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Could not evaluate [%s] method, %s\n",
            AcpiGbl_SleepStateNames[SleepState],
            AcpiFormatException (Status));
        return;
    }

    AcpiOsPrintf (
        "Register values for sleep state S%d: Sleep-A: %.2X, Sleep-B: %.2X\n",
        SleepState, SleepTypeA, SleepTypeB);

    /* Invoke the various sleep/wake interfaces */

    AcpiOsPrintf ("**** Sleep: Prepare to sleep (S%d) ****\n",
        SleepState);
    Status = AcpiEnterSleepStatePrep (SleepState);
    if (ACPI_FAILURE (Status))
    {
        goto ErrorExit;
    }

    AcpiOsPrintf ("**** Sleep: Going to sleep (S%d) ****\n",
        SleepState);
    Status = AcpiEnterSleepState (SleepState);
    if (ACPI_FAILURE (Status))
    {
        goto ErrorExit;
    }

    AcpiOsPrintf ("**** Wake: Prepare to return from sleep (S%d) ****\n",
        SleepState);
    Status = AcpiLeaveSleepStatePrep (SleepState);
    if (ACPI_FAILURE (Status))
    {
        goto ErrorExit;
    }

    AcpiOsPrintf ("**** Wake: Return from sleep (S%d) ****\n",
        SleepState);
    Status = AcpiLeaveSleepState (SleepState);
    if (ACPI_FAILURE (Status))
    {
        goto ErrorExit;
    }

    return;


ErrorExit:
    ACPI_EXCEPTION ((AE_INFO, Status, "During invocation of sleep state S%d",
        SleepState));
}

ACPI_STATUS
AcpiDsInitOneObject (
    ACPI_HANDLE             ObjHandle,
    UINT32                  Level,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_OBJECT_TYPE        Type;
    ACPI_STATUS             Status;
    ACPI_INIT_WALK_INFO     *Info = (ACPI_INIT_WALK_INFO *) Context;


    ACPI_FUNCTION_NAME ("DsInitOneObject");


    /*
     * We are only interested in objects owned by the table that
     * was just loaded
     */
    if (((ACPI_NAMESPACE_NODE *) ObjHandle)->OwnerId !=
            Info->TableDesc->TableId)
    {
        return (AE_OK);
    }

    Info->ObjectCount++;

    /* And even then, we are only interested in a few object types */

    Type = AcpiNsGetType (ObjHandle);

    switch (Type)
    {
    case ACPI_TYPE_REGION:

        Status = AcpiDsInitializeRegion (ObjHandle);
        if (ACPI_FAILURE (Status))
        {
            ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Region %p [%4.4s] - Init failure, %s\n",
                ObjHandle, ((ACPI_NAMESPACE_NODE *) ObjHandle)->Name.Ascii,
                AcpiFormatException (Status)));
        }

        Info->OpRegionCount++;
        break;


    case ACPI_TYPE_METHOD:

        Info->MethodCount++;

        /* Print a dot for each method unless we are going to print the entire pathname */

        if (!(AcpiDbgLevel & ACPI_LV_INIT_NAMES))
        {
            ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
        }

        /*
         * Set the execution data width (32 or 64) based upon the
         * revision number of the parent ACPI table.
         * TBD: This is really for possible future support of integer width
         * on a per-table basis. Currently, we just use a global for the width.
         */
        if (Info->TableDesc->Pointer->Revision == 1)
        {
            ((ACPI_NAMESPACE_NODE *) ObjHandle)->Flags |= ANOBJ_DATA_WIDTH_32;
        }

        /*
         * Always parse methods to detect errors, we may delete
         * the parse tree below
         */
        Status = AcpiDsParseMethod (ObjHandle);
        if (ACPI_FAILURE (Status))
        {
            ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Method %p [%4.4s] - parse failure, %s\n",
                ObjHandle, ((ACPI_NAMESPACE_NODE *) ObjHandle)->Name.Ascii,
                AcpiFormatException (Status)));

            /* This parse failed, but we will continue parsing more methods */

            break;
        }

        /*
         * Delete the parse tree.  We simple re-parse the method
         * for every execution since there isn't much overhead
         */
        AcpiNsDeleteNamespaceSubtree (ObjHandle);
        AcpiNsDeleteNamespaceByOwner (((ACPI_NAMESPACE_NODE *) ObjHandle)->Object->Method.OwningId);
        break;


    case ACPI_TYPE_DEVICE:

        Info->DeviceCount++;
        break;


//.........这里部分代码省略.........

ACPI_STATUS
AeInstallEarlyHandlers (
    void)
{
    ACPI_STATUS             Status;
    ACPI_HANDLE             Handle;


    ACPI_FUNCTION_ENTRY ();


    Status = AcpiInstallInterfaceHandler (AeInterfaceHandler);
    if (ACPI_FAILURE (Status))
    {
        printf ("Could not install interface handler, %s\n",
            AcpiFormatException (Status));
    }

    Status = AcpiInstallTableHandler (AeTableHandler, NULL);
    if (ACPI_FAILURE (Status))
    {
        printf ("Could not install table handler, %s\n",
            AcpiFormatException (Status));
    }

    Status = AcpiInstallExceptionHandler (AeExceptionHandler);
    if (ACPI_FAILURE (Status))
    {
        printf ("Could not install exception handler, %s\n",
            AcpiFormatException (Status));
    }

    /* Install global notify handlers */

    Status = AcpiInstallNotifyHandler (ACPI_ROOT_OBJECT, ACPI_SYSTEM_NOTIFY,
        AeSystemNotifyHandler, NULL);
    if (ACPI_FAILURE (Status))
    {
        printf ("Could not install a global system notify handler, %s\n",
            AcpiFormatException (Status));
    }

    Status = AcpiInstallNotifyHandler (ACPI_ROOT_OBJECT, ACPI_DEVICE_NOTIFY,
        AeDeviceNotifyHandler, NULL);
    if (ACPI_FAILURE (Status))
    {
        printf ("Could not install a global notify handler, %s\n",
            AcpiFormatException (Status));
    }

    Status = AcpiGetHandle (NULL, "\\_SB", &Handle);
    if (ACPI_SUCCESS (Status))
    {
        Status = AcpiInstallNotifyHandler (Handle, ACPI_SYSTEM_NOTIFY,
            AeNotifyHandler1, NULL);
        if (ACPI_FAILURE (Status))
        {
            printf ("Could not install a notify handler, %s\n",
                AcpiFormatException (Status));
        }

        Status = AcpiRemoveNotifyHandler (Handle, ACPI_SYSTEM_NOTIFY,
            AeNotifyHandler1);
        if (ACPI_FAILURE (Status))
        {
            printf ("Could not remove a notify handler, %s\n",
                AcpiFormatException (Status));
        }

        Status = AcpiInstallNotifyHandler (Handle, ACPI_ALL_NOTIFY,
            AeNotifyHandler1, NULL);
        ACPI_CHECK_OK (AcpiInstallNotifyHandler, Status);

        Status = AcpiRemoveNotifyHandler (Handle, ACPI_ALL_NOTIFY,
            AeNotifyHandler1);
        ACPI_CHECK_OK (AcpiRemoveNotifyHandler, Status);

#if 0
        Status = AcpiInstallNotifyHandler (Handle, ACPI_ALL_NOTIFY,
            AeNotifyHandler1, NULL);
        if (ACPI_FAILURE (Status))
        {
            printf ("Could not install a notify handler, %s\n",
                AcpiFormatException (Status));
        }
#endif

        /* Install two handlers for _SB_ */

        Status = AcpiInstallNotifyHandler (Handle, ACPI_SYSTEM_NOTIFY,
            AeNotifyHandler1, ACPI_CAST_PTR (void, 0x01234567));

        Status = AcpiInstallNotifyHandler (Handle, ACPI_SYSTEM_NOTIFY,
            AeNotifyHandler2, ACPI_CAST_PTR (void, 0x89ABCDEF));

        /* Attempt duplicate handler installation, should fail */

        Status = AcpiInstallNotifyHandler (Handle, ACPI_SYSTEM_NOTIFY,
            AeNotifyHandler1, ACPI_CAST_PTR (void, 0x77777777));

//.........这里部分代码省略.........

ACPI_STATUS
AcpiDbLoadAcpiTable (
    NATIVE_CHAR             *Filename)
{
#ifdef ACPI_APPLICATION
    FILE                    *fp;
    ACPI_STATUS             Status;
    ACPI_TABLE_HEADER       *TablePtr;
    UINT32                  TableLength;


    /* Open the file */

    fp = fopen (Filename, "rb");
    if (!fp)
    {
        AcpiOsPrintf ("Could not open file %s\n", Filename);
        return (AE_ERROR);
    }


    /* Get the entire file */

    AcpiOsPrintf ("Loading Acpi table from file %s\n", Filename);
    Status = AcpiDbLoadTable (fp, &TablePtr, &TableLength);
    fclose(fp);

    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Couldn't get table from the file\n");
        return (Status);
    }


    /* Attempt to recognize and install the table */
    Status = AeLocalLoadTable (TablePtr);

    if (ACPI_FAILURE (Status))
    {
        if (Status == AE_EXIST)
        {
            AcpiOsPrintf ("Table %4.4s is already installed\n",
                            &TablePtr->Signature);
        }

        else
        {
            AcpiOsPrintf ("Could not install table, %s\n",
                            AcpiFormatException (Status));
        }

        ACPI_MEM_FREE (TablePtr);
        return (Status);
    }

    AcpiOsPrintf ("%4.4s at %p successfully installed and loaded\n",
                                &TablePtr->Signature, TablePtr);

    AcpiGbl_AcpiHardwarePresent = FALSE;

#endif  /* ACPI_APPLICATION */
    return (AE_OK);
}

        Status = AcpiAttachData (ACPI_ROOT_OBJECT, AeAttachedDataHandler2,
            AcpiGbl_RootNode);
        ACPI_CHECK_OK (AcpiAttachData, Status);

        /* Test support for multiple attaches */

        Status = AcpiAttachData (Handle, AeAttachedDataHandler, Handle);
        ACPI_CHECK_OK (AcpiAttachData, Status);

        Status = AcpiAttachData (Handle, AeAttachedDataHandler2, Handle);
        ACPI_CHECK_OK (AcpiAttachData, Status);
    }
    else
    {
        printf ("No _SB_ found, %s\n", AcpiFormatException (Status));
    }

    /*
     * Install handlers that will override the default handlers for some of
     * the space IDs.
     */
    AeOverrideRegionHandlers ();

    /*
     * Initialize the global Region Handler space
     * MCW 3/23/00
     */
    AeRegions.NumberOfRegions = 0;
    AeRegions.RegionList = NULL;
    return (AE_OK);

static ACPI_STATUS
AeExceptionHandler (
    ACPI_STATUS             AmlStatus,
    ACPI_NAME               Name,
    UINT16                  Opcode,
    UINT32                  AmlOffset,
    void                    *Context)
{
    ACPI_STATUS             NewAmlStatus = AmlStatus;
    ACPI_STATUS             Status;
    ACPI_BUFFER             ReturnObj;
    ACPI_OBJECT_LIST        ArgList;
    ACPI_OBJECT             Arg[3];
    const char              *Exception;


    Exception = AcpiFormatException (AmlStatus);
    AcpiOsPrintf ("[AcpiExec] Exception %s during execution ", Exception);
    if (Name)
    {
        AcpiOsPrintf ("of method [%4.4s]", (char *) &Name);
    }
    else
    {
        AcpiOsPrintf ("at module level (table load)");
    }

    AcpiOsPrintf (" Opcode [%s] @%X\n", AcpiPsGetOpcodeName (Opcode), AmlOffset);

    /*
     * Invoke the _ERR method if present
     *
     * Setup parameter object
     */
    ArgList.Count = 3;
    ArgList.Pointer = Arg;

    Arg[0].Type = ACPI_TYPE_INTEGER;
    Arg[0].Integer.Value = AmlStatus;

    Arg[1].Type = ACPI_TYPE_STRING;
    Arg[1].String.Pointer = ACPI_CAST_PTR (char, Exception);
    Arg[1].String.Length = strlen (Exception);

    Arg[2].Type = ACPI_TYPE_INTEGER;
    Arg[2].Integer.Value = AcpiOsGetThreadId();

    /* Setup return buffer */

    ReturnObj.Pointer = NULL;
    ReturnObj.Length = ACPI_ALLOCATE_BUFFER;

    Status = AcpiEvaluateObject (NULL, "\\_ERR", &ArgList, &ReturnObj);
    if (ACPI_SUCCESS (Status))
    {
        if (ReturnObj.Pointer)
        {
            /* Override original status */

            NewAmlStatus = (ACPI_STATUS)
                ((ACPI_OBJECT *) ReturnObj.Pointer)->Integer.Value;

            /* Free a buffer created via ACPI_ALLOCATE_BUFFER */

            AcpiOsFree (ReturnObj.Pointer);
        }
    }
    else if (Status != AE_NOT_FOUND)
    {
        AcpiOsPrintf ("[AcpiExec] Could not execute _ERR method, %s\n",
            AcpiFormatException (Status));
    }

    /* Global override */

    if (AcpiGbl_IgnoreErrors)
    {
        NewAmlStatus = AE_OK;
    }

    if (NewAmlStatus != AmlStatus)
    {
        AcpiOsPrintf ("[AcpiExec] Exception override, new status %s\n\n",
            AcpiFormatException (NewAmlStatus));
    }

    return (NewAmlStatus);
}

//.........这里部分代码省略.........
     * If we are expecting a return value, and all went well above,
     * copy the return value to an external object.
     */
    if (!ReturnBuffer)
    {
        goto CleanupReturnObject;
    }

    if (!Info->ReturnObject)
    {
        ReturnBuffer->Length = 0;
        goto Cleanup;
    }

    if (ACPI_GET_DESCRIPTOR_TYPE (Info->ReturnObject) ==
        ACPI_DESC_TYPE_NAMED)
    {
        /*
         * If we received a NS Node as a return object, this means that
         * the object we are evaluating has nothing interesting to
         * return (such as a mutex, etc.)  We return an error because
         * these types are essentially unsupported by this interface.
         * We don't check up front because this makes it easier to add
         * support for various types at a later date if necessary.
         */
        Status = AE_TYPE;
        Info->ReturnObject = NULL;   /* No need to delete a NS Node */
        ReturnBuffer->Length = 0;
    }

    if (ACPI_FAILURE (Status))
    {
        goto CleanupReturnObject;
    }

    /* Dereference Index and RefOf references */

    AcpiNsResolveReferences (Info);

    /* Get the size of the returned object */

    Status = AcpiUtGetObjectSize (Info->ReturnObject,
        &BufferSpaceNeeded);
    if (ACPI_SUCCESS (Status))
    {
        /* Validate/Allocate/Clear caller buffer */

        Status = AcpiUtInitializeBuffer (ReturnBuffer,
            BufferSpaceNeeded);
        if (ACPI_FAILURE (Status))
        {
            /*
             * Caller's buffer is too small or a new one can't
             * be allocated
             */
            ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
                "Needed buffer size %X, %s\n",
                (UINT32) BufferSpaceNeeded,
                AcpiFormatException (Status)));
        }
        else
        {
            /* We have enough space for the object, build it */

            Status = AcpiUtCopyIobjectToEobject (
                Info->ReturnObject, ReturnBuffer);
        }
    }

CleanupReturnObject:

    if (Info->ReturnObject)
    {
        /*
         * Delete the internal return object. NOTE: Interpreter must be
         * locked to avoid race condition.
         */
        AcpiExEnterInterpreter ();

        /* Remove one reference on the return object (should delete it) */

        AcpiUtRemoveReference (Info->ReturnObject);
        AcpiExExitInterpreter ();
    }


Cleanup:

    /* Free the input parameter list (if we created one) */

    if (Info->Parameters)
    {
        /* Free the allocated parameter block */

        AcpiUtDeleteInternalObjectList (Info->Parameters);
    }

    ACPI_FREE (Info);
    return_ACPI_STATUS (Status);
}

static void
acpi_cmbat_get_bif(void *arg)
{
    struct acpi_cmbat_softc *sc;
    ACPI_STATUS	as;
    ACPI_OBJECT	*res;
    ACPI_HANDLE	h;
    ACPI_BUFFER	bif_buffer;
    device_t dev;

    ACPI_SERIAL_ASSERT(cmbat);

    dev = arg;
    sc = device_get_softc(dev);
    h = acpi_get_handle(dev);
    bif_buffer.Pointer = NULL;
    bif_buffer.Length = ACPI_ALLOCATE_BUFFER;

    as = AcpiEvaluateObject(h, "_BIF", NULL, &bif_buffer);
    if (ACPI_FAILURE(as)) {
	ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
		    "error fetching current battery info -- %s\n",
		    AcpiFormatException(as));
	goto end;
    }

    res = (ACPI_OBJECT *)bif_buffer.Pointer;
    if (!ACPI_PKG_VALID(res, 13)) {
	ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
		    "battery info corrupted\n");
	goto end;
    }

    if (acpi_PkgInt32(res, 0, &sc->bif.units) != 0)
	goto end;
    if (acpi_PkgInt32(res, 1, &sc->bif.dcap) != 0)
	goto end;
    if (acpi_PkgInt32(res, 2, &sc->bif.lfcap) != 0)
	goto end;
    if (acpi_PkgInt32(res, 3, &sc->bif.btech) != 0)
	goto end;
    if (acpi_PkgInt32(res, 4, &sc->bif.dvol) != 0)
	goto end;
    if (acpi_PkgInt32(res, 5, &sc->bif.wcap) != 0)
	goto end;
    if (acpi_PkgInt32(res, 6, &sc->bif.lcap) != 0)
	goto end;
    if (acpi_PkgInt32(res, 7, &sc->bif.gra1) != 0)
	goto end;
    if (acpi_PkgInt32(res, 8, &sc->bif.gra2) != 0)
	goto end;
    if (acpi_PkgStr(res,  9, sc->bif.model, ACPI_CMBAT_MAXSTRLEN) != 0)
	goto end;
    if (acpi_PkgStr(res, 10, sc->bif.serial, ACPI_CMBAT_MAXSTRLEN) != 0)
	goto end;
    if (acpi_PkgStr(res, 11, sc->bif.type, ACPI_CMBAT_MAXSTRLEN) != 0)
	goto end;
    if (acpi_PkgStr(res, 12, sc->bif.oeminfo, ACPI_CMBAT_MAXSTRLEN) != 0)
	goto end;

end:
    if (bif_buffer.Pointer != NULL)
	AcpiOsFree(bif_buffer.Pointer);
}

static void
acpi_cmbat_get_bst(void *arg)
{
    struct acpi_cmbat_softc *sc;
    ACPI_STATUS	as;
    ACPI_OBJECT	*res;
    ACPI_HANDLE	h;
    ACPI_BUFFER	bst_buffer;
    device_t dev;

    ACPI_SERIAL_ASSERT(cmbat);

    dev = arg;
    sc = device_get_softc(dev);
    h = acpi_get_handle(dev);
    bst_buffer.Pointer = NULL;
    bst_buffer.Length = ACPI_ALLOCATE_BUFFER;

    if (!acpi_cmbat_info_expired(&sc->bst_lastupdated))
	goto end;

    as = AcpiEvaluateObject(h, "_BST", NULL, &bst_buffer);
    if (ACPI_FAILURE(as)) {
	ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
		    "error fetching current battery status -- %s\n",
		    AcpiFormatException(as));
	goto end;
    }

    res = (ACPI_OBJECT *)bst_buffer.Pointer;
    if (!ACPI_PKG_VALID(res, 4)) {
	ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
		    "battery status corrupted\n");
	goto end;
    }

    if (acpi_PkgInt32(res, 0, &sc->bst.state) != 0)
	goto end;
    if (acpi_PkgInt32(res, 1, &sc->bst.rate) != 0)
	goto end;
    if (acpi_PkgInt32(res, 2, &sc->bst.cap) != 0)
	goto end;
    if (acpi_PkgInt32(res, 3, &sc->bst.volt) != 0)
	goto end;
    acpi_cmbat_info_updated(&sc->bst_lastupdated);

    /* Clear out undefined/extended bits that might be set by hardware. */
    sc->bst.state &= ACPI_BATT_STAT_BST_MASK;
    if ((sc->bst.state & ACPI_BATT_STAT_INVALID) == ACPI_BATT_STAT_INVALID)
	ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
	    "battery reports simultaneous charging and discharging\n");

    /* XXX If all batteries are critical, perhaps we should suspend. */
    if (sc->bst.state & ACPI_BATT_STAT_CRITICAL) {
    	if ((sc->flags & ACPI_BATT_STAT_CRITICAL) == 0) {
	    sc->flags |= ACPI_BATT_STAT_CRITICAL;
	    device_printf(dev, "critically low charge!\n");
	}
    } else
	sc->flags &= ~ACPI_BATT_STAT_CRITICAL;

end:
    if (bst_buffer.Pointer != NULL)
	AcpiOsFree(bst_buffer.Pointer);
}

static bool radeon_atrm_get_bios(struct radeon_device *rdev)
{
	int ret;
	int size = 256 * 1024;
	int i;
	device_t dev;
	ACPI_HANDLE dhandle, atrm_handle;
	ACPI_STATUS status;
	bool found = false;

	DRM_INFO("%s: ===> Try ATRM...\n", __func__);

	/* ATRM is for the discrete card only */
	if (rdev->flags & RADEON_IS_IGP) {
		DRM_INFO("%s: IGP card detected, skipping this method...\n",
		    __func__);
		return false;
	}

#ifdef FREEBSD_WIP
	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
#endif /* FREEBSD_WIP */
	if ((dev = pci_find_class(PCIC_DISPLAY, PCIS_DISPLAY_VGA)) != NULL) {
		DRM_INFO("%s: pci_find_class() found: %d:%d:%d:%d, vendor=%04x, device=%04x\n",
		    __func__,
		    pci_get_domain(dev),
		    pci_get_bus(dev),
		    pci_get_slot(dev),
		    pci_get_function(dev),
		    pci_get_vendor(dev),
		    pci_get_device(dev));
		DRM_INFO("%s: Get ACPI device handle\n", __func__);
		dhandle = acpi_get_handle(dev);
#ifdef FREEBSD_WIP
		if (!dhandle)
			continue;
#endif /* FREEBSD_WIP */
		if (!dhandle)
			return false;

		DRM_INFO("%s: Get ACPI handle for \"ATRM\"\n", __func__);
		status = AcpiGetHandle(dhandle, "ATRM", &atrm_handle);
		if (!ACPI_FAILURE(status)) {
			found = true;
#ifdef FREEBSD_WIP
			break;
#endif /* FREEBSD_WIP */
		} else {
			DRM_INFO("%s: Failed to get \"ATRM\" handle: %s\n",
			    __func__, AcpiFormatException(status));
		}
	}

	if (!found)
		return false;

	rdev->bios = malloc(size, DRM_MEM_DRIVER, M_NOWAIT);
	if (!rdev->bios) {
		DRM_ERROR("Unable to allocate bios\n");
		return false;
	}

	for (i = 0; i < size / ATRM_BIOS_PAGE; i++) {
		DRM_INFO("%s: Call radeon_atrm_call()\n", __func__);
		ret = radeon_atrm_call(atrm_handle,
				       rdev->bios,
				       (i * ATRM_BIOS_PAGE),
				       ATRM_BIOS_PAGE);
		if (ret < ATRM_BIOS_PAGE)
			break;
	}

	if (i == 0 || rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) {
		if (i == 0) {
			DRM_INFO("%s: Incorrect BIOS size\n", __func__);
		} else {
			DRM_INFO("%s: Incorrect BIOS signature: 0x%02X%02X\n",
			    __func__, rdev->bios[0], rdev->bios[1]);
		}
		free(rdev->bios, DRM_MEM_DRIVER);
		return false;
	}
	return true;
}
#else
static inline bool radeon_atrm_get_bios(struct radeon_device *rdev)
{
	return false;
}
#endif

static bool ni_read_disabled_bios(struct radeon_device *rdev)
{
	u32 bus_cntl;
	u32 d1vga_control;
	u32 d2vga_control;
	u32 vga_render_control;
	u32 rom_cntl;
	bool r;

//.........这里部分代码省略.........