Ejemplo n.º 1
0
ACPI_STATUS
AcpiDsGetBankFieldArguments (
    ACPI_OPERAND_OBJECT     *ObjDesc)
{
    ACPI_OPERAND_OBJECT     *ExtraDesc;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE_PTR (DsGetBankFieldArguments, ObjDesc);


    if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
    {
        return_ACPI_STATUS (AE_OK);
    }

    /* Get the AML pointer (method object) and BankField node */

    ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
    Node = ObjDesc->BankField.Node;

    ACPI_DEBUG_EXEC(AcpiUtDisplayInitPathname (ACPI_TYPE_LOCAL_BANK_FIELD, Node, NULL));
    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
        AcpiUtGetNodeName (Node)));

    /* Execute the AML code for the TermArg arguments */

    Status = AcpiDsExecuteArguments (Node, AcpiNsGetParentNode (Node),
                ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
    return_ACPI_STATUS (Status);
}
Ejemplo n.º 2
0
ACPI_STATUS
AcpiDsGetRegionArguments (
    ACPI_OPERAND_OBJECT     *ObjDesc)
{
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;
    ACPI_OPERAND_OBJECT     *ExtraDesc;


    ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc);


    if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
    {
        return_ACPI_STATUS (AE_OK);
    }

    ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
    if (!ExtraDesc)
    {
        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    /* Get the Region node */

    Node = ObjDesc->Region.Node;

    ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_REGION, Node, NULL));

    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
        AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart));

    /* Execute the argument AML */

    Status = AcpiDsExecuteArguments (Node, AcpiNsGetParentNode (Node),
                ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Validate the region address/length via the host OS */

    Status = AcpiOsValidateAddress (ObjDesc->Region.SpaceId,
                ObjDesc->Region.Address, (ACPI_SIZE) ObjDesc->Region.Length);
    if (ACPI_FAILURE (Status))
    {
        /*
         * Invalid address/length. We will emit an error message and mark
         * the region as invalid, so that it will cause an additional error if
         * it is ever used. Then return AE_OK.
         */
        ACPI_EXCEPTION ((AE_INFO, Status,
            "During address validation of OpRegion [%4.4s]", Node->Name.Ascii));
        ObjDesc->Common.Flags |= AOPOBJ_INVALID;
        Status = AE_OK;
    }

    return_ACPI_STATUS (Status);
}
Ejemplo n.º 3
0
ACPI_STATUS
AcpiDsGetRegionArguments (
    ACPI_OPERAND_OBJECT     *ObjDesc)
{
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;
    ACPI_OPERAND_OBJECT     *ExtraDesc;


    ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc);


    if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
    {
        return_ACPI_STATUS (AE_OK);
    }

    ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
    if (!ExtraDesc)
    {
        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    /* Get the Region node */

    Node = ObjDesc->Region.Node;

    ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
        ACPI_TYPE_REGION, Node, NULL));

    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
        "[%4.4s] OpRegion Arg Init at AML %p\n",
        AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart));

    /* Execute the argument AML */

    Status = AcpiDsExecuteArguments (Node, ExtraDesc->Extra.ScopeNode,
        ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    Status = AcpiUtAddAddressRange (ObjDesc->Region.SpaceId,
        ObjDesc->Region.Address, ObjDesc->Region.Length, Node);
    return_ACPI_STATUS (Status);
}
Ejemplo n.º 4
0
ACPI_STATUS
AcpiDsGetRegionArguments (
    ACPI_OPERAND_OBJECT     *ObjDesc)
{
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;
    ACPI_OPERAND_OBJECT     *ExtraDesc;


    ACPI_FUNCTION_TRACE_PTR ("DsGetRegionArguments", ObjDesc);


    if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
    {
        return_ACPI_STATUS (AE_OK);
    }

    ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
    if (!ExtraDesc)
    {
        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    /* Get the Region node */

    Node = ObjDesc->Region.Node;

    ACPI_DEBUG_EXEC(AcpiUtDisplayInitPathname (ACPI_TYPE_REGION, Node, NULL));

    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Init at AML %p\n",
        Node->Name.Ascii, ExtraDesc->Extra.AmlStart));


    Status = AcpiDsExecuteArguments (Node, AcpiNsGetParentNode (Node),
                ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
    return_ACPI_STATUS (Status);
}
Ejemplo n.º 5
0
static ACPI_STATUS
AcpiNsInitOneDevice (
    ACPI_HANDLE             ObjHandle,
    UINT32                  NestingLevel,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_DEVICE_WALK_INFO   *WalkInfo = ACPI_CAST_PTR (ACPI_DEVICE_WALK_INFO, Context);
    ACPI_EVALUATE_INFO      *Info = WalkInfo->EvaluateInfo;
    UINT32                  Flags;
    ACPI_STATUS             Status;
    ACPI_NAMESPACE_NODE     *DeviceNode;


    ACPI_FUNCTION_TRACE (NsInitOneDevice);


    /* We are interested in Devices, Processors and ThermalZones only */

    DeviceNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
    if ((DeviceNode->Type != ACPI_TYPE_DEVICE)    &&
        (DeviceNode->Type != ACPI_TYPE_PROCESSOR) &&
        (DeviceNode->Type != ACPI_TYPE_THERMAL))
    {
        return_ACPI_STATUS (AE_OK);
    }

    /*
     * Because of an earlier namespace analysis, all subtrees that contain an
     * _INI method are tagged.
     *
     * If this device subtree does not contain any _INI methods, we
     * can exit now and stop traversing this entire subtree.
     */
    if (!(DeviceNode->Flags & ANOBJ_SUBTREE_HAS_INI))
    {
        return_ACPI_STATUS (AE_CTRL_DEPTH);
    }

    /*
     * Run _STA to determine if this device is present and functioning. We
     * must know this information for two important reasons (from ACPI spec):
     *
     * 1) We can only run _INI if the device is present.
     * 2) We must abort the device tree walk on this subtree if the device is
     *    not present and is not functional (we will not examine the children)
     *
     * The _STA method is not required to be present under the device, we
     * assume the device is present if _STA does not exist.
     */
    ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
        ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__STA));

    Status = AcpiUtExecute_STA (DeviceNode, &Flags);
    if (ACPI_FAILURE (Status))
    {
        /* Ignore error and move on to next device */

        return_ACPI_STATUS (AE_OK);
    }

    /*
     * Flags == -1 means that _STA was not found. In this case, we assume that
     * the device is both present and functional.
     *
     * From the ACPI spec, description of _STA:
     *
     * "If a device object (including the processor object) does not have an
     * _STA object, then OSPM assumes that all of the above bits are set (in
     * other words, the device is present, ..., and functioning)"
     */
    if (Flags != ACPI_UINT32_MAX)
    {
        WalkInfo->Num_STA++;
    }

    /*
     * Examine the PRESENT and FUNCTIONING status bits
     *
     * Note: ACPI spec does not seem to specify behavior for the present but
     * not functioning case, so we assume functioning if present.
     */
    if (!(Flags & ACPI_STA_DEVICE_PRESENT))
    {
        /* Device is not present, we must examine the Functioning bit */

        if (Flags & ACPI_STA_DEVICE_FUNCTIONING)
        {
            /*
             * Device is not present but is "functioning". In this case,
             * we will not run _INI, but we continue to examine the children
             * of this device.
             *
             * From the ACPI spec, description of _STA: (Note - no mention
             * of whether to run _INI or not on the device in question)
             *
             * "_STA may return bit 0 clear (not present) with bit 3 set
             * (device is functional). This case is used to indicate a valid
             * device for which no device driver should be loaded (for example,
             * a bridge device.) Children of this device may be present and
             * valid. OSPM should continue enumeration below a device whose
             * _STA returns this bit combination"
             */
            return_ACPI_STATUS (AE_OK);
        }
        else
        {
            /*
             * Device is not present and is not functioning. We must abort the
             * walk of this subtree immediately -- don't look at the children
             * of such a device.
             *
             * From the ACPI spec, description of _INI:
             *
             * "If the _STA method indicates that the device is not present,
             * OSPM will not run the _INI and will not examine the children
             * of the device for _INI methods"
             */
            return_ACPI_STATUS (AE_CTRL_DEPTH);
        }
    }

    /*
     * The device is present or is assumed present if no _STA exists.
     * Run the _INI if it exists (not required to exist)
     *
     * Note: We know there is an _INI within this subtree, but it may not be
     * under this particular device, it may be lower in the branch.
     */
    ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
        ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__INI));

    ACPI_MEMSET (Info, 0, sizeof (ACPI_EVALUATE_INFO));
    Info->PrefixNode = DeviceNode;
    Info->RelativePathname = METHOD_NAME__INI;
    Info->Parameters = NULL;
    Info->Flags = ACPI_IGNORE_RETURN_VALUE;

    Status = AcpiNsEvaluate (Info);
    if (ACPI_SUCCESS (Status))
    {
        WalkInfo->Num_INI++;
    }

#ifdef ACPI_DEBUG_OUTPUT
    else if (Status != AE_NOT_FOUND)
    {
        /* Ignore error and move on to next device */

        char *ScopeName = AcpiNsGetExternalPathname (Info->Node);

        ACPI_EXCEPTION ((AE_INFO, Status, "during %s._INI execution",
            ScopeName));
        ACPI_FREE (ScopeName);
    }
#endif

    /* Ignore errors from above */

    Status = AE_OK;

    /*
     * The _INI method has been run if present; call the Global Initialization
     * Handler for this device.
     */
    if (AcpiGbl_InitHandler)
    {
        Status = AcpiGbl_InitHandler (DeviceNode, ACPI_INIT_DEVICE_INI);
    }

    return_ACPI_STATUS (Status);
}
Ejemplo n.º 6
0
ACPI_STATUS
AcpiEvExecuteRegMethod (
    ACPI_OPERAND_OBJECT     *RegionObj,
    UINT32                  Function)
{
    ACPI_EVALUATE_INFO      *Info;
    ACPI_OPERAND_OBJECT     *Args[3];
    ACPI_OPERAND_OBJECT     *RegionObj2;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE (EvExecuteRegMethod);


    RegionObj2 = AcpiNsGetSecondaryObject (RegionObj);
    if (!RegionObj2)
    {
        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    if (RegionObj2->Extra.Method_REG == NULL)
    {
        return_ACPI_STATUS (AE_OK);
    }

    /* Allocate and initialize the evaluation information block */

    Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
    if (!Info)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    Info->PrefixNode = RegionObj2->Extra.Method_REG;
    Info->RelativePathname = NULL;
    Info->Parameters = Args;
    Info->Flags = ACPI_IGNORE_RETURN_VALUE;

    /*
     * The _REG method has two arguments:
     *
     * Arg0 - Integer:
     *  Operation region space ID Same value as RegionObj->Region.SpaceId
     *
     * Arg1 - Integer:
     *  connection status 1 for connecting the handler, 0 for disconnecting
     *  the handler (Passed as a parameter)
     */
    Args[0] = AcpiUtCreateIntegerObject ((UINT64) RegionObj->Region.SpaceId);
    if (!Args[0])
    {
        Status = AE_NO_MEMORY;
        goto Cleanup1;
    }

    Args[1] = AcpiUtCreateIntegerObject ((UINT64) Function);
    if (!Args[1])
    {
        Status = AE_NO_MEMORY;
        goto Cleanup2;
    }

    Args[2] = NULL; /* Terminate list */

    /* Execute the method, no return value */

    ACPI_DEBUG_EXEC (
        AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, Info->PrefixNode, NULL));

    Status = AcpiNsEvaluate (Info);
    AcpiUtRemoveReference (Args[1]);

Cleanup2:
    AcpiUtRemoveReference (Args[0]);

Cleanup1:
    ACPI_FREE (Info);
    return_ACPI_STATUS (Status);
}
Ejemplo n.º 7
0
ACPI_STATUS
AcpiEvExecuteRegMethod (
    ACPI_OPERAND_OBJECT     *RegionObj,
    UINT32                  Function)
{
    ACPI_EVALUATE_INFO      *Info;
    ACPI_OPERAND_OBJECT     *Args[3];
    ACPI_OPERAND_OBJECT     *RegionObj2;
    const ACPI_NAME         *RegNamePtr = ACPI_CAST_PTR (ACPI_NAME, METHOD_NAME__REG);
    ACPI_NAMESPACE_NODE     *MethodNode;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE (EvExecuteRegMethod);


    if (!AcpiGbl_NamespaceInitialized ||
        RegionObj->Region.Handler == NULL)
    {
        return_ACPI_STATUS (AE_OK);
    }

    RegionObj2 = AcpiNsGetSecondaryObject (RegionObj);
    if (!RegionObj2)
    {
        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    /*
     * Find any "_REG" method associated with this region definition.
     * The method should always be updated as this function may be
     * invoked after a namespace change.
     */
    Node = RegionObj->Region.Node->Parent;
    Status = AcpiNsSearchOneScope (
        *RegNamePtr, Node, ACPI_TYPE_METHOD, &MethodNode);
    if (ACPI_SUCCESS (Status))
    {
        /*
         * The _REG method is optional and there can be only one per
         * region definition. This will be executed when the handler is
         * attached or removed.
         */
        RegionObj2->Extra.Method_REG = MethodNode;
    }
    if (RegionObj2->Extra.Method_REG == NULL)
    {
        return_ACPI_STATUS (AE_OK);
    }

    /* _REG(DISCONNECT) should be paired with _REG(CONNECT) */

    if ((Function == ACPI_REG_CONNECT &&
        RegionObj->Common.Flags & AOPOBJ_REG_CONNECTED) ||
        (Function == ACPI_REG_DISCONNECT &&
         !(RegionObj->Common.Flags & AOPOBJ_REG_CONNECTED)))
    {
        return_ACPI_STATUS (AE_OK);
    }

    /* Allocate and initialize the evaluation information block */

    Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
    if (!Info)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    Info->PrefixNode = RegionObj2->Extra.Method_REG;
    Info->RelativePathname = NULL;
    Info->Parameters = Args;
    Info->Flags = ACPI_IGNORE_RETURN_VALUE;

    /*
     * The _REG method has two arguments:
     *
     * Arg0 - Integer:
     *  Operation region space ID Same value as RegionObj->Region.SpaceId
     *
     * Arg1 - Integer:
     *  connection status 1 for connecting the handler, 0 for disconnecting
     *  the handler (Passed as a parameter)
     */
    Args[0] = AcpiUtCreateIntegerObject ((UINT64) RegionObj->Region.SpaceId);
    if (!Args[0])
    {
        Status = AE_NO_MEMORY;
        goto Cleanup1;
    }

    Args[1] = AcpiUtCreateIntegerObject ((UINT64) Function);
    if (!Args[1])
    {
        Status = AE_NO_MEMORY;
        goto Cleanup2;
    }

    Args[2] = NULL; /* Terminate list */

    /* Execute the method, no return value */

    ACPI_DEBUG_EXEC (
        AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, Info->PrefixNode, NULL));

    Status = AcpiNsEvaluate (Info);
    AcpiUtRemoveReference (Args[1]);

    if (ACPI_FAILURE (Status))
    {
        goto Cleanup2;
    }

    if (Function == ACPI_REG_CONNECT)
    {
        RegionObj->Common.Flags |= AOPOBJ_REG_CONNECTED;
    }
    else
    {
        RegionObj->Common.Flags &= ~AOPOBJ_REG_CONNECTED;
    }

Cleanup2:
    AcpiUtRemoveReference (Args[0]);

Cleanup1:
    ACPI_FREE (Info);
    return_ACPI_STATUS (Status);
}
Ejemplo n.º 8
0
static ACPI_STATUS
AcpiEvExecuteRegMethod (
    ACPI_OPERAND_OBJECT    *RegionObj,
    UINT32                  Function)
{
    ACPI_OPERAND_OBJECT    *Params[3];
    ACPI_OPERAND_OBJECT    *RegionObj2;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE ("EvExecuteRegMethod");


    RegionObj2 = AcpiNsGetSecondaryObject (RegionObj);
    if (!RegionObj2)
    {
        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    if (RegionObj2->Extra.Method_REG == NULL)
    {
        return_ACPI_STATUS (AE_OK);
    }

    /*
     *  _REG method has two arguments
     *  Arg0:   Integer: Operation region space ID
     *          Same value as RegionObj->Region.SpaceId
     *  Arg1:   Integer: connection status
     *          1 for connecting the handler,
     *          0 for disconnecting the handler
     *          Passed as a parameter
     */
    Params[0] = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
    if (!Params[0])
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    Params[1] = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
    if (!Params[1])
    {
        Status = AE_NO_MEMORY;
        goto Cleanup;
    }

    /*
     *  Set up the parameter objects
     */
    Params[0]->Integer.Value = RegionObj->Region.SpaceId;
    Params[1]->Integer.Value = Function;
    Params[2] = NULL;

    /*
     *  Execute the method, no return value
     */
    ACPI_DEBUG_EXEC(AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, RegionObj2->Extra.Method_REG, NULL));
    Status = AcpiNsEvaluateByHandle (RegionObj2->Extra.Method_REG, Params, NULL);

    AcpiUtRemoveReference (Params[1]);

Cleanup:
    AcpiUtRemoveReference (Params[0]);

    return_ACPI_STATUS (Status);
}