Exemplo n.º 1
0
static ACPI_STATUS
AcpiDbDisplayNonRootHandlers (
    ACPI_HANDLE             ObjHandle,
    UINT32                  NestingLevel,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_NAMESPACE_NODE     *Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     *HandlerObj;
    char                    *Pathname;


    ObjDesc = AcpiNsGetAttachedObject (Node);
    if (!ObjDesc)
    {
        return (AE_OK);
    }

    Pathname = AcpiNsGetNormalizedPathname (Node, TRUE);
    if (!Pathname)
    {
        return (AE_OK);
    }

    /* Display all handlers associated with this device */

    HandlerObj = ObjDesc->Device.Handler;
    while (HandlerObj)
    {
        AcpiOsPrintf (ACPI_PREDEFINED_PREFIX,
            AcpiUtGetRegionName ((UINT8) HandlerObj->AddressSpace.SpaceId),
            HandlerObj->AddressSpace.SpaceId);

        AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING2,
            (HandlerObj->AddressSpace.HandlerFlags &
                ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ? "Default" : "User",
            HandlerObj->AddressSpace.Handler);

        AcpiOsPrintf (" Device Name: %s (%p)\n", Pathname, Node);

        HandlerObj = HandlerObj->AddressSpace.Next;
    }

    ACPI_FREE (Pathname);
    return (AE_OK);
}
Exemplo n.º 2
0
ACPI_STATUS
AcpiHwWrite (
    UINT32                  Value,
    ACPI_GENERIC_ADDRESS    *Reg)
{
    UINT64                  Address;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_NAME (HwWrite);


    /* Validate contents of the GAS register */

    Status = AcpiHwValidateRegister (Reg, 32, &Address);
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    /*
     * Two address spaces supported: Memory or IO. PCI_Config is
     * not supported here because the GAS structure is insufficient
     */
    if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY)
    {
        Status = AcpiOsWriteMemory ((ACPI_PHYSICAL_ADDRESS)
                    Address, (UINT64) Value, Reg->BitWidth);
    }
    else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
    {
        Status = AcpiHwWritePort ((ACPI_IO_ADDRESS)
                    Address, Value, Reg->BitWidth);
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_IO,
        "Wrote: %8.8X width %2d   to %8.8X%8.8X (%s)\n",
        Value, Reg->BitWidth, ACPI_FORMAT_UINT64 (Address),
        AcpiUtGetRegionName (Reg->SpaceId)));

    return (Status);
}
Exemplo n.º 3
0
static ACPI_STATUS
AcpiDbTestOneObject (
    ACPI_HANDLE             ObjHandle,
    UINT32                  NestingLevel,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     *RegionObj;
    ACPI_OBJECT_TYPE        LocalType;
    UINT32                  BitLength = 0;
    UINT32                  ByteLength = 0;
    ACPI_STATUS             Status = AE_OK;


    Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
    ObjDesc = Node->Object;

    /*
     * For the supported types, get the actual bit length or
     * byte length. Map the type to one of Integer/String/Buffer.
     */
    switch (Node->Type)
    {
    case ACPI_TYPE_INTEGER:

        /* Integer width is either 32 or 64 */

        LocalType = ACPI_TYPE_INTEGER;
        BitLength = AcpiGbl_IntegerBitWidth;
        break;

    case ACPI_TYPE_STRING:

        LocalType = ACPI_TYPE_STRING;
        ByteLength = ObjDesc->String.Length;
        break;

    case ACPI_TYPE_BUFFER:

        LocalType = ACPI_TYPE_BUFFER;
        ByteLength = ObjDesc->Buffer.Length;
        BitLength = ByteLength * 8;
        break;

    case ACPI_TYPE_FIELD_UNIT:
    case ACPI_TYPE_BUFFER_FIELD:
    case ACPI_TYPE_LOCAL_REGION_FIELD:
    case ACPI_TYPE_LOCAL_INDEX_FIELD:
    case ACPI_TYPE_LOCAL_BANK_FIELD:

        LocalType = ACPI_TYPE_INTEGER;
        if (ObjDesc)
        {
            /*
             * Returned object will be a Buffer if the field length
             * is larger than the size of an Integer (32 or 64 bits
             * depending on the DSDT version).
             */
            BitLength = ObjDesc->CommonField.BitLength;
            ByteLength = ACPI_ROUND_BITS_UP_TO_BYTES (BitLength);
            if (BitLength > AcpiGbl_IntegerBitWidth)
            {
                LocalType = ACPI_TYPE_BUFFER;
            }
        }
        break;

    default:

        /* Ignore all other types */

        return (AE_OK);
    }

    /* Emit the common prefix: Type:Name */

    AcpiOsPrintf ("%14s: %4.4s",
        AcpiUtGetTypeName (Node->Type), Node->Name.Ascii);
    if (!ObjDesc)
    {
        AcpiOsPrintf (" Ignoring, no attached object\n");
        return (AE_OK);
    }

    /*
     * Check for unsupported region types. Note: AcpiExec simulates
     * access to SystemMemory, SystemIO, PCI_Config, and EC.
     */
    switch (Node->Type)
    {
    case ACPI_TYPE_LOCAL_REGION_FIELD:

        RegionObj = ObjDesc->Field.RegionObj;
        switch (RegionObj->Region.SpaceId)
        {
        case ACPI_ADR_SPACE_SYSTEM_MEMORY:
        case ACPI_ADR_SPACE_SYSTEM_IO:
        case ACPI_ADR_SPACE_PCI_CONFIG:
        case ACPI_ADR_SPACE_EC:

            break;

        default:

            AcpiOsPrintf ("      %s space is not supported [%4.4s]\n",
                AcpiUtGetRegionName (RegionObj->Region.SpaceId),
                RegionObj->Region.Node->Name.Ascii);
            return (AE_OK);
        }
        break;

    default:
        break;
    }

    /* At this point, we have resolved the object to one of the major types */

    switch (LocalType)
    {
    case ACPI_TYPE_INTEGER:

        Status = AcpiDbTestIntegerType (Node, BitLength);
        break;

    case ACPI_TYPE_STRING:

        Status = AcpiDbTestStringType (Node, ByteLength);
        break;

    case ACPI_TYPE_BUFFER:

        Status = AcpiDbTestBufferType (Node, BitLength);
        break;

    default:

        AcpiOsPrintf (" Ignoring, type not implemented (%2.2X)",
            LocalType);
        break;
    }

    switch (Node->Type)
    {
    case ACPI_TYPE_LOCAL_REGION_FIELD:

        RegionObj = ObjDesc->Field.RegionObj;
        AcpiOsPrintf (" (%s)",
            AcpiUtGetRegionName (RegionObj->Region.SpaceId));
        break;

    default:
        break;
    }

    AcpiOsPrintf ("\n");
    return (Status);
}
Exemplo n.º 4
0
ACPI_STATUS
AcpiEvAddressSpaceDispatch (
    ACPI_OPERAND_OBJECT     *RegionObj,
    UINT32                  Function,
    UINT32                  RegionOffset,
    UINT32                  BitWidth,
    UINT64                  *Value)
{
    ACPI_STATUS             Status;
    ACPI_ADR_SPACE_HANDLER  Handler;
    ACPI_ADR_SPACE_SETUP    RegionSetup;
    ACPI_OPERAND_OBJECT     *HandlerDesc;
    ACPI_OPERAND_OBJECT     *RegionObj2;
    void                    *RegionContext = NULL;


    ACPI_FUNCTION_TRACE (EvAddressSpaceDispatch);


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

    /* Ensure that there is a handler associated with this region */

    HandlerDesc = RegionObj->Region.Handler;
    if (!HandlerDesc)
    {
        ACPI_ERROR ((AE_INFO,
            "No handler for Region [%4.4s] (%p) [%s]",
            AcpiUtGetNodeName (RegionObj->Region.Node),
            RegionObj, AcpiUtGetRegionName (RegionObj->Region.SpaceId)));

        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    /*
     * It may be the case that the region has never been initialized.
     * Some types of regions require special init code
     */
    if (!(RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE))
    {
        /* This region has not been initialized yet, do it */

        RegionSetup = HandlerDesc->AddressSpace.Setup;
        if (!RegionSetup)
        {
            /* No initialization routine, exit with error */

            ACPI_ERROR ((AE_INFO,
                "No init routine for region(%p) [%s]",
                RegionObj, AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
            return_ACPI_STATUS (AE_NOT_EXIST);
        }

        /*
         * We must exit the interpreter because the region setup will
         * potentially execute control methods (for example, the _REG method
         * for this region)
         */
        AcpiExExitInterpreter ();

        Status = RegionSetup (RegionObj, ACPI_REGION_ACTIVATE,
                    HandlerDesc->AddressSpace.Context, &RegionContext);

        /* Re-enter the interpreter */

        AcpiExEnterInterpreter ();

        /* Check for failure of the Region Setup */

        if (ACPI_FAILURE (Status))
        {
            ACPI_EXCEPTION ((AE_INFO, Status,
                "During region initialization: [%s]",
                AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
            return_ACPI_STATUS (Status);
        }

        /* Region initialization may have been completed by RegionSetup */

        if (!(RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE))
        {
            RegionObj->Region.Flags |= AOPOBJ_SETUP_COMPLETE;

            if (RegionObj2->Extra.RegionContext)
            {
                /* The handler for this region was already installed */

                ACPI_FREE (RegionContext);
            }
            else
            {
                /*
                 * Save the returned context for use in all accesses to
                 * this particular region
                 */
                RegionObj2->Extra.RegionContext = RegionContext;
            }
        }
    }

    /* We have everything we need, we can invoke the address space handler */

    Handler = HandlerDesc->AddressSpace.Handler;

    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
        "Handler %p (@%p) Address %8.8X%8.8X [%s]\n",
        &RegionObj->Region.Handler->AddressSpace, Handler,
        ACPI_FORMAT_NATIVE_UINT (RegionObj->Region.Address + RegionOffset),
        AcpiUtGetRegionName (RegionObj->Region.SpaceId)));

    if (!(HandlerDesc->AddressSpace.HandlerFlags &
            ACPI_ADDR_HANDLER_DEFAULT_INSTALLED))
    {
        /*
         * For handlers other than the default (supplied) handlers, we must
         * exit the interpreter because the handler *might* block -- we don't
         * know what it will do, so we can't hold the lock on the intepreter.
         */
        AcpiExExitInterpreter();
    }

    /* Call the handler */

    Status = Handler (Function,
        (RegionObj->Region.Address + RegionOffset), BitWidth, Value,
        HandlerDesc->AddressSpace.Context, RegionObj2->Extra.RegionContext);

    if (ACPI_FAILURE (Status))
    {
        ACPI_EXCEPTION ((AE_INFO, Status, "Returned by Handler for [%s]",
            AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
    }

    if (!(HandlerDesc->AddressSpace.HandlerFlags &
            ACPI_ADDR_HANDLER_DEFAULT_INSTALLED))
    {
        /*
         * We just returned from a non-default handler, we must re-enter the
         * interpreter
         */
       AcpiExEnterInterpreter ();
    }

    return_ACPI_STATUS (Status);
}
Exemplo n.º 5
0
ACPI_STATUS
AcpiRemoveAddressSpaceHandler (
    ACPI_HANDLE             Device,
    ACPI_ADR_SPACE_TYPE     SpaceId,
    ACPI_ADR_SPACE_HANDLER  Handler)
{
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_OPERAND_OBJECT     *RegionObj;
    ACPI_OPERAND_OBJECT     **LastObjPtr;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE (AcpiRemoveAddressSpaceHandler);


    /* Parameter validation */

    if (!Device)
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Convert and validate the device handle */

    Node = AcpiNsValidateHandle (Device);
    if (!Node ||
            ((Node->Type != ACPI_TYPE_DEVICE)    &&
             (Node->Type != ACPI_TYPE_PROCESSOR) &&
             (Node->Type != ACPI_TYPE_THERMAL)   &&
             (Node != AcpiGbl_RootNode)))
    {
        Status = AE_BAD_PARAMETER;
        goto UnlockAndExit;
    }

    /* Make sure the internal object exists */

    ObjDesc = AcpiNsGetAttachedObject (Node);
    if (!ObjDesc)
    {
        Status = AE_NOT_EXIST;
        goto UnlockAndExit;
    }

    /* Find the address handler the user requested */

    HandlerObj = ObjDesc->Device.Handler;
    LastObjPtr = &ObjDesc->Device.Handler;
    while (HandlerObj)
    {
        /* We have a handler, see if user requested this one */

        if (HandlerObj->AddressSpace.SpaceId == SpaceId)
        {
            /* Handler must be the same as the installed handler */

            if (HandlerObj->AddressSpace.Handler != Handler)
            {
                Status = AE_BAD_PARAMETER;
                goto UnlockAndExit;
            }

            /* Matched SpaceId, first dereference this in the Regions */

            ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                               "Removing address handler %p(%p) for region %s "
                               "on Device %p(%p)\n",
                               HandlerObj, Handler, AcpiUtGetRegionName (SpaceId),
                               Node, ObjDesc));

            RegionObj = HandlerObj->AddressSpace.RegionList;

            /* Walk the handler's region list */

            while (RegionObj)
            {
                /*
                 * First disassociate the handler from the region.
                 *
                 * NOTE: this doesn't mean that the region goes away
                 * The region is just inaccessible as indicated to
                 * the _REG method
                 */
                AcpiEvDetachRegion (RegionObj, TRUE);

                /*
                 * Walk the list: Just grab the head because the
                 * DetachRegion removed the previous head.
                 */
                RegionObj = HandlerObj->AddressSpace.RegionList;

            }

            /* Remove this Handler object from the list */

            *LastObjPtr = HandlerObj->AddressSpace.Next;

            /* Now we can delete the handler object */

            AcpiUtRemoveReference (HandlerObj);
            goto UnlockAndExit;
        }

        /* Walk the linked list of handlers */

        LastObjPtr = &HandlerObj->AddressSpace.Next;
        HandlerObj = HandlerObj->AddressSpace.Next;
    }

    /* The handler does not exist */

    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                       "Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n",
                       Handler, AcpiUtGetRegionName (SpaceId), SpaceId, Node, ObjDesc));

    Status = AE_NOT_EXIST;

UnlockAndExit:
    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
    return_ACPI_STATUS (Status);
}
Exemplo n.º 6
0
ACPI_STATUS
AcpiHwWrite (
    UINT64                  Value,
    ACPI_GENERIC_ADDRESS    *Reg)
{
    UINT64                  Address;
    UINT8                   AccessWidth;
    UINT32                  BitWidth;
    UINT8                   BitOffset;
    UINT64                  Value64;
    UINT8                   Index;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_NAME (HwWrite);


    /* Validate contents of the GAS register */

    Status = AcpiHwValidateRegister (Reg, 64, &Address);
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    /* Convert AccessWidth into number of bits based */

    AccessWidth = AcpiHwGetAccessBitWidth (Address, Reg, 64);
    BitWidth = Reg->BitOffset + Reg->BitWidth;
    BitOffset = Reg->BitOffset;

    /*
     * Two address spaces supported: Memory or IO. PCI_Config is
     * not supported here because the GAS structure is insufficient
     */
    Index = 0;
    while (BitWidth)
    {
        /*
         * Use offset style bit reads because "Index * AccessWidth" is
         * ensured to be less than 64-bits by AcpiHwValidateRegister().
         */
        Value64 = ACPI_GET_BITS (&Value, Index * AccessWidth,
            ACPI_MASK_BITS_ABOVE_64 (AccessWidth));

        if (BitOffset >= AccessWidth)
        {
            BitOffset -= AccessWidth;
        }
        else
        {
            if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY)
            {
                Status = AcpiOsWriteMemory ((ACPI_PHYSICAL_ADDRESS)
                    Address + Index * ACPI_DIV_8 (AccessWidth),
                    Value64, AccessWidth);
            }
            else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
            {
                Status = AcpiHwWritePort ((ACPI_IO_ADDRESS)
                    Address + Index * ACPI_DIV_8 (AccessWidth),
                    (UINT32) Value64, AccessWidth);
            }
        }

        /*
         * Index * AccessWidth is ensured to be less than 32-bits by
         * AcpiHwValidateRegister().
         */
        BitWidth -= BitWidth > AccessWidth ? AccessWidth : BitWidth;
        Index++;
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_IO,
        "Wrote: %8.8X%8.8X width %2d   to %8.8X%8.8X (%s)\n",
        ACPI_FORMAT_UINT64 (Value), AccessWidth,
        ACPI_FORMAT_UINT64 (Address), AcpiUtGetRegionName (Reg->SpaceId)));

    return (Status);
}
Exemplo n.º 7
0
ACPI_STATUS
AcpiExAccessRegion (
    ACPI_OPERAND_OBJECT     *ObjDesc,
    UINT32                  FieldDatumByteOffset,
    UINT64                  *Value,
    UINT32                  Function)
{
    ACPI_STATUS             Status;
    ACPI_OPERAND_OBJECT     *RgnDesc;
    UINT32                  RegionOffset;


    ACPI_FUNCTION_TRACE (ExAccessRegion);


    /*
     * Ensure that the region operands are fully evaluated and verify
     * the validity of the request
     */
    Status = AcpiExSetupRegion (ObjDesc, FieldDatumByteOffset);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /*
     * The physical address of this field datum is:
     *
     * 1) The base of the region, plus
     * 2) The base offset of the field, plus
     * 3) The current offset into the field
     */
    RgnDesc = ObjDesc->CommonField.RegionObj;
    RegionOffset =
        ObjDesc->CommonField.BaseByteOffset +
        FieldDatumByteOffset;

    if ((Function & ACPI_IO_MASK) == ACPI_READ)
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "[READ]"));
    }
    else
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "[WRITE]"));
    }

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_BFIELD,
        " Region [%s:%X], Width %X, ByteBase %X, Offset %X at %8.8X%8.8X\n",
        AcpiUtGetRegionName (RgnDesc->Region.SpaceId),
        RgnDesc->Region.SpaceId,
        ObjDesc->CommonField.AccessByteWidth,
        ObjDesc->CommonField.BaseByteOffset,
        FieldDatumByteOffset,
        ACPI_FORMAT_UINT64 (RgnDesc->Region.Address + RegionOffset)));

    /* Invoke the appropriate AddressSpace/OpRegion handler */

    Status = AcpiEvAddressSpaceDispatch (RgnDesc, ObjDesc,
                Function, RegionOffset,
                ACPI_MUL_8 (ObjDesc->CommonField.AccessByteWidth), Value);

    if (ACPI_FAILURE (Status))
    {
        if (Status == AE_NOT_IMPLEMENTED)
        {
            ACPI_ERROR ((AE_INFO,
                "Region %s (ID=%u) not implemented",
                AcpiUtGetRegionName (RgnDesc->Region.SpaceId),
                RgnDesc->Region.SpaceId));
        }
        else if (Status == AE_NOT_EXIST)
        {
            ACPI_ERROR ((AE_INFO,
                "Region %s (ID=%u) has no handler",
                AcpiUtGetRegionName (RgnDesc->Region.SpaceId),
                RgnDesc->Region.SpaceId));
        }
    }

    return_ACPI_STATUS (Status);
}
Exemplo n.º 8
0
ACPI_STATUS
AcpiEvAddressSpaceDispatch (
    ACPI_OPERAND_OBJECT     *RegionObj,
    ACPI_OPERAND_OBJECT     *FieldObj,
    UINT32                  Function,
    UINT32                  RegionOffset,
    UINT32                  BitWidth,
    UINT64                  *Value)
{
    ACPI_STATUS             Status;
    ACPI_ADR_SPACE_HANDLER  Handler;
    ACPI_ADR_SPACE_SETUP    RegionSetup;
    ACPI_OPERAND_OBJECT     *HandlerDesc;
    ACPI_OPERAND_OBJECT     *RegionObj2;
    void                    *RegionContext = NULL;
    ACPI_CONNECTION_INFO    *Context;
    ACPI_PHYSICAL_ADDRESS   Address;


    ACPI_FUNCTION_TRACE (EvAddressSpaceDispatch);


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

    /* Ensure that there is a handler associated with this region */

    HandlerDesc = RegionObj->Region.Handler;
    if (!HandlerDesc)
    {
        ACPI_ERROR ((AE_INFO,
            "No handler for Region [%4.4s] (%p) [%s]",
            AcpiUtGetNodeName (RegionObj->Region.Node),
            RegionObj, AcpiUtGetRegionName (RegionObj->Region.SpaceId)));

        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    Context = HandlerDesc->AddressSpace.Context;

    /*
     * It may be the case that the region has never been initialized.
     * Some types of regions require special init code
     */
    if (!(RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE))
    {
        /* This region has not been initialized yet, do it */

        RegionSetup = HandlerDesc->AddressSpace.Setup;
        if (!RegionSetup)
        {
            /* No initialization routine, exit with error */

            ACPI_ERROR ((AE_INFO,
                "No init routine for region(%p) [%s]",
                RegionObj, AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
            return_ACPI_STATUS (AE_NOT_EXIST);
        }

        /*
         * We must exit the interpreter because the region setup will
         * potentially execute control methods (for example, the _REG method
         * for this region)
         */
        AcpiExExitInterpreter ();

        Status = RegionSetup (RegionObj, ACPI_REGION_ACTIVATE,
                    Context, &RegionContext);

        /* Re-enter the interpreter */

        AcpiExEnterInterpreter ();

        /* Check for failure of the Region Setup */

        if (ACPI_FAILURE (Status))
        {
            ACPI_EXCEPTION ((AE_INFO, Status,
                "During region initialization: [%s]",
                AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
            return_ACPI_STATUS (Status);
        }

        /* Region initialization may have been completed by RegionSetup */

        if (!(RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE))
        {
            RegionObj->Region.Flags |= AOPOBJ_SETUP_COMPLETE;

            /*
             * Save the returned context for use in all accesses to
             * the handler for this particular region
             */
            if (!(RegionObj2->Extra.RegionContext))
            {
                RegionObj2->Extra.RegionContext = RegionContext;
            }
        }
    }

    /* We have everything we need, we can invoke the address space handler */

    Handler = HandlerDesc->AddressSpace.Handler;
    Address = (RegionObj->Region.Address + RegionOffset);

    /*
     * Special handling for GenericSerialBus and GeneralPurposeIo:
     * There are three extra parameters that must be passed to the
     * handler via the context:
     *   1) Connection buffer, a resource template from Connection() op
     *   2) Length of the above buffer
     *   3) Actual access length from the AccessAs() op
     *
     * In addition, for GeneralPurposeIo, the Address and BitWidth fields
     * are defined as follows:
     *   1) Address is the pin number index of the field (bit offset from
     *      the previous Connection)
     *   2) BitWidth is the actual bit length of the field (number of pins)
     */
    if ((RegionObj->Region.SpaceId == ACPI_ADR_SPACE_GSBUS) &&
        Context &&
        FieldObj)
    {
        /* Get the Connection (ResourceTemplate) buffer */

        Context->Connection = FieldObj->Field.ResourceBuffer;
        Context->Length = FieldObj->Field.ResourceLength;
        Context->AccessLength = FieldObj->Field.AccessLength;
    }
    if ((RegionObj->Region.SpaceId == ACPI_ADR_SPACE_GPIO) &&
        Context &&
        FieldObj)
    {
        /* Get the Connection (ResourceTemplate) buffer */

        Context->Connection = FieldObj->Field.ResourceBuffer;
        Context->Length = FieldObj->Field.ResourceLength;
        Context->AccessLength = FieldObj->Field.AccessLength;
        Address = FieldObj->Field.PinNumberIndex;
        BitWidth = FieldObj->Field.BitLength;
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
        "Handler %p (@%p) Address %8.8X%8.8X [%s]\n",
        &RegionObj->Region.Handler->AddressSpace, Handler,
        ACPI_FORMAT_UINT64 (Address),
        AcpiUtGetRegionName (RegionObj->Region.SpaceId)));

    if (!(HandlerDesc->AddressSpace.HandlerFlags &
            ACPI_ADDR_HANDLER_DEFAULT_INSTALLED))
    {
        /*
         * For handlers other than the default (supplied) handlers, we must
         * exit the interpreter because the handler *might* block -- we don't
         * know what it will do, so we can't hold the lock on the intepreter.
         */
        AcpiExExitInterpreter();
    }

    /* Call the handler */

    Status = Handler (Function, Address, BitWidth, Value, Context,
        RegionObj2->Extra.RegionContext);

    if (ACPI_FAILURE (Status))
    {
        ACPI_EXCEPTION ((AE_INFO, Status, "Returned by Handler for [%s]",
            AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
    }

    if (!(HandlerDesc->AddressSpace.HandlerFlags &
            ACPI_ADDR_HANDLER_DEFAULT_INSTALLED))
    {
        /*
         * We just returned from a non-default handler, we must re-enter the
         * interpreter
         */
       AcpiExEnterInterpreter ();
    }

    return_ACPI_STATUS (Status);
}
Exemplo n.º 9
0
ACPI_STATUS
AcpiInstallAddressSpaceHandler (
    ACPI_HANDLE             Device,
    ACPI_ADR_SPACE_TYPE     SpaceId,
    ACPI_ADR_SPACE_HANDLER  Handler,
    ACPI_ADR_SPACE_SETUP    Setup,
    void                    *Context)
{
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;
    ACPI_OBJECT_TYPE        Type;
    UINT16                  Flags = 0;


    ACPI_FUNCTION_TRACE ("AcpiInstallAddressSpaceHandler");


    /* Parameter validation */

    if (!Device)
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Convert and validate the device handle */

    Node = AcpiNsMapHandleToNode (Device);
    if (!Node)
    {
        Status = AE_BAD_PARAMETER;
        goto UnlockAndExit;
    }

    /*
     * This registration is valid for only the types below
     * and the root.  This is where the default handlers
     * get placed.
     */
    if ((Node->Type != ACPI_TYPE_DEVICE)     &&
        (Node->Type != ACPI_TYPE_PROCESSOR)  &&
        (Node->Type != ACPI_TYPE_THERMAL)    &&
        (Node != AcpiGbl_RootNode))
    {
        Status = AE_BAD_PARAMETER;
        goto UnlockAndExit;
    }

    if (Handler == ACPI_DEFAULT_HANDLER)
    {
        Flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED;

        switch (SpaceId)
        {
        case ACPI_ADR_SPACE_SYSTEM_MEMORY:
            Handler = AcpiExSystemMemorySpaceHandler;
            Setup   = AcpiEvSystemMemoryRegionSetup;
            break;

        case ACPI_ADR_SPACE_SYSTEM_IO:
            Handler = AcpiExSystemIoSpaceHandler;
            Setup   = AcpiEvIoSpaceRegionSetup;
            break;

        case ACPI_ADR_SPACE_PCI_CONFIG:
            Handler = AcpiExPciConfigSpaceHandler;
            Setup   = AcpiEvPciConfigRegionSetup;
            break;

        case ACPI_ADR_SPACE_CMOS:
            Handler = AcpiExCmosSpaceHandler;
            Setup   = AcpiEvCmosRegionSetup;
            break;

        case ACPI_ADR_SPACE_PCI_BAR_TARGET:
            Handler = AcpiExPciBarSpaceHandler;
            Setup   = AcpiEvPciBarRegionSetup;
            break;

        case ACPI_ADR_SPACE_DATA_TABLE:
            Handler = AcpiExDataTableSpaceHandler;
            Setup   = NULL;
            break;

        default:
            Status = AE_NOT_EXIST;
            goto UnlockAndExit;
        }
    }

    /*
     * If the caller hasn't specified a setup routine, use the default
     */
    if (!Setup)
    {
        Setup = AcpiEvDefaultRegionSetup;
    }

    /*
     * Check for an existing internal object
     */
    ObjDesc = AcpiNsGetAttachedObject (Node);
    if (ObjDesc)
    {
        /*
         * The object exists.
         * Make sure the handler is not already installed.
         */

        /* check the address handler the user requested */

        HandlerObj = ObjDesc->Device.AddrHandler;
        while (HandlerObj)
        {
            /*
             * We have an Address handler, see if user requested this
             * address space.
             */
            if(HandlerObj->AddrHandler.SpaceId == SpaceId)
            {
                Status = AE_ALREADY_EXISTS;
                goto UnlockAndExit;
            }

            /*
             * Move through the linked list of handlers
             */
            HandlerObj = HandlerObj->AddrHandler.Next;
        }
    }
    else
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
            "Creating object on Device %p while installing handler\n", Node));

        /* ObjDesc does not exist, create one */

        if (Node->Type == ACPI_TYPE_ANY)
        {
            Type = ACPI_TYPE_DEVICE;
        }
        else
        {
            Type = Node->Type;
        }

        ObjDesc = AcpiUtCreateInternalObject (Type);
        if (!ObjDesc)
        {
            Status = AE_NO_MEMORY;
            goto UnlockAndExit;
        }

        /* Init new descriptor */

        ObjDesc->Common.Type = (UINT8) Type;

        /* Attach the new object to the Node */

        Status = AcpiNsAttachObject (Node, ObjDesc, Type);
        if (ACPI_FAILURE (Status))
        {
            AcpiUtRemoveReference (ObjDesc);
            goto UnlockAndExit;
        }
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
        "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
        AcpiUtGetRegionName (SpaceId), SpaceId, Node->Name.Ascii, Node, ObjDesc));

    /*
     * Now we can install the handler
     *
     * At this point we know that there is no existing handler.
     * So, we just allocate the object for the handler and link it
     * into the list.
     */
    HandlerObj = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
    if (!HandlerObj)
    {
        Status = AE_NO_MEMORY;
        goto UnlockAndExit;
    }

    HandlerObj->AddrHandler.SpaceId     = (UINT8) SpaceId;
    HandlerObj->AddrHandler.Hflags      = Flags;
    HandlerObj->AddrHandler.Next        = ObjDesc->Device.AddrHandler;
    HandlerObj->AddrHandler.RegionList  = NULL;
    HandlerObj->AddrHandler.Node        = Node;
    HandlerObj->AddrHandler.Handler     = Handler;
    HandlerObj->AddrHandler.Context     = Context;
    HandlerObj->AddrHandler.Setup       = Setup;

    /*
     * Now walk the namespace finding all of the regions this
     * handler will manage.
     *
     * We start at the device and search the branch toward
     * the leaf nodes until either the leaf is encountered or
     * a device is detected that has an address handler of the
     * same type.
     *
     * In either case we back up and search down the remainder
     * of the branch
     */
    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, Device,
                                  ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
                                  AcpiEvAddrHandlerHelper,
                                  HandlerObj, NULL);

    /*
     * Place this handler 1st on the list
     */
    HandlerObj->Common.ReferenceCount =
                            (UINT16) (HandlerObj->Common.ReferenceCount +
                            ObjDesc->Common.ReferenceCount - 1);
    ObjDesc->Device.AddrHandler = HandlerObj;


UnlockAndExit:
    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
    return_ACPI_STATUS (Status);
}
Exemplo n.º 10
0
static ACPI_STATUS
AcpiEvInstallHandler (
    ACPI_HANDLE             ObjHandle,
    UINT32                  Level,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_OPERAND_OBJECT     *NextHandlerObj;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_NAME (EvInstallHandler);


    HandlerObj = (ACPI_OPERAND_OBJECT  *) Context;

    /* Parameter validation */

    if (!HandlerObj)
    {
        return (AE_OK);
    }

    /* Convert and validate the device handle */

    Node = AcpiNsValidateHandle (ObjHandle);
    if (!Node)
    {
        return (AE_BAD_PARAMETER);
    }

    /*
     * We only care about regions and objects that are allowed to have
     * address space handlers
     */
    if ((Node->Type != ACPI_TYPE_DEVICE) &&
            (Node->Type != ACPI_TYPE_REGION) &&
            (Node != AcpiGbl_RootNode))
    {
        return (AE_OK);
    }

    /* Check for an existing internal object */

    ObjDesc = AcpiNsGetAttachedObject (Node);
    if (!ObjDesc)
    {
        /* No object, just exit */

        return (AE_OK);
    }

    /* Devices are handled different than regions */

    if (ObjDesc->Common.Type == ACPI_TYPE_DEVICE)
    {
        /* Check if this Device already has a handler for this address space */

        NextHandlerObj = AcpiEvFindRegionHandler (
                             HandlerObj->AddressSpace.SpaceId, ObjDesc->CommonNotify.Handler);
        if (NextHandlerObj)
        {
            /* Found a handler, is it for the same address space? */

            ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                               "Found handler for region [%s] in device %p(%p) handler %p\n",
                               AcpiUtGetRegionName (HandlerObj->AddressSpace.SpaceId),
                               ObjDesc, NextHandlerObj, HandlerObj));

            /*
             * Since the object we found it on was a device, then it means
             * that someone has already installed a handler for the branch
             * of the namespace from this device on. Just bail out telling
             * the walk routine to not traverse this branch. This preserves
             * the scoping rule for handlers.
             */
            return (AE_CTRL_DEPTH);
        }

        /*
         * As long as the device didn't have a handler for this space we
         * don't care about it. We just ignore it and proceed.
         */
        return (AE_OK);
    }

    /* Object is a Region */

    if (ObjDesc->Region.SpaceId != HandlerObj->AddressSpace.SpaceId)
    {
        /* This region is for a different address space, just ignore it */

        return (AE_OK);
    }

    /*
     * Now we have a region and it is for the handler's address space type.
     *
     * First disconnect region for any previous handler (if any)
     */
    AcpiEvDetachRegion (ObjDesc, FALSE);

    /* Connect the region to the new handler */

    Status = AcpiEvAttachRegion (HandlerObj, ObjDesc, FALSE);
    return (Status);
}
Exemplo n.º 11
0
ACPI_STATUS
AcpiHwRead (
    UINT32                  *Value,
    ACPI_GENERIC_ADDRESS    *Reg)
{
    UINT64                  Address;
    UINT8                   AccessWidth;
    UINT32                  BitWidth;
    UINT8                   BitOffset;
    UINT64                  Value64;
    UINT32                  Value32;
    UINT8                   Index;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_NAME (HwRead);


    /* Validate contents of the GAS register */

    Status = AcpiHwValidateRegister (Reg, 32, &Address);
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    /*
     * Initialize entire 32-bit return value to zero, convert AccessWidth
     * into number of bits based
     */
    *Value = 0;
    AccessWidth = Reg->AccessWidth ? Reg->AccessWidth : 1;
    AccessWidth = 1 << (AccessWidth + 2);
    BitWidth = ACPI_ROUND_UP (Reg->BitOffset + Reg->BitWidth, AccessWidth);
    BitOffset = Reg->BitOffset;

    /*
     * Two address spaces supported: Memory or IO. PCI_Config is
     * not supported here because the GAS structure is insufficient
     */
    Index = 0;
    while (BitWidth)
    {
        if (BitOffset > AccessWidth)
        {
            Value32 = 0;
            BitOffset -= AccessWidth;
        }
        else
        {
            if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY)
            {
                Status = AcpiOsReadMemory ((ACPI_PHYSICAL_ADDRESS)
                    Address + Index * ACPI_DIV_8 (AccessWidth),
                    &Value64, AccessWidth);
                Value32 = (UINT32) Value64;
            }
            else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
            {
                Status = AcpiHwReadPort ((ACPI_IO_ADDRESS)
                    Address + Index * ACPI_DIV_8 (AccessWidth),
                    &Value32, AccessWidth);
            }

            if (BitOffset)
            {
                Value32 &= ACPI_MASK_BITS_BELOW (BitOffset);
                BitOffset = 0;
            }
            if (BitWidth < AccessWidth)
            {
                Value32 &= ACPI_MASK_BITS_ABOVE (BitWidth);
            }
        }

        ACPI_SET_BITS (Value, Index * AccessWidth,
            ((1 << AccessWidth) - 1), Value32);

        BitWidth -= BitWidth > AccessWidth ? AccessWidth : BitWidth;
        Index++;
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_IO,
        "Read:  %8.8X width %2d from %8.8X%8.8X (%s)\n",
        *Value, AccessWidth, ACPI_FORMAT_UINT64 (Address),
        AcpiUtGetRegionName (Reg->SpaceId)));

    return (Status);
}
Exemplo n.º 12
0
ACPI_STATUS
AcpiHwWrite (
    UINT32                  Value,
    ACPI_GENERIC_ADDRESS    *Reg)
{
    UINT64                  Address;
    UINT8                   AccessWidth;
    UINT32                  BitWidth;
    UINT8                   BitOffset;
    UINT64                  Value64;
    UINT32                  NewValue32, OldValue32;
    UINT8                   Index;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_NAME (HwWrite);


    /* Validate contents of the GAS register */

    Status = AcpiHwValidateRegister (Reg, 32, &Address);
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    /* Convert AccessWidth into number of bits based */

    AccessWidth = Reg->AccessWidth ? Reg->AccessWidth : 1;
    AccessWidth = 1 << (AccessWidth + 2);
    BitWidth = ACPI_ROUND_UP (Reg->BitOffset + Reg->BitWidth, AccessWidth);
    BitOffset = Reg->BitOffset;

    /*
     * Two address spaces supported: Memory or IO. PCI_Config is
     * not supported here because the GAS structure is insufficient
     */
    Index = 0;
    while (BitWidth)
    {
        NewValue32 = ACPI_GET_BITS (&Value, (Index * AccessWidth),
            ((1 << AccessWidth) - 1));

        if (BitOffset > AccessWidth)
        {
            BitOffset -= AccessWidth;
        }
        else
        {
            if (BitOffset)
            {
                NewValue32 &= ACPI_MASK_BITS_BELOW (BitOffset);
            }

            if (BitWidth < AccessWidth)
            {
                NewValue32 &= ACPI_MASK_BITS_ABOVE (BitWidth);
            }

            if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY)
            {
                if (BitOffset || BitWidth < AccessWidth)
                {
                    /*
                     * Read old values in order not to modify the bits that
                     * are beyond the register BitWidth/BitOffset setting.
                     */
                    Status = AcpiOsReadMemory ((ACPI_PHYSICAL_ADDRESS)
                        Address + Index * ACPI_DIV_8 (AccessWidth),
                        &Value64, AccessWidth);
                    OldValue32 = (UINT32) Value64;

                    if (BitOffset)
                    {
                        OldValue32 &= ACPI_MASK_BITS_ABOVE (BitOffset + 1);
                        BitOffset = 0;
                    }

                    if (BitWidth < AccessWidth)
                    {
                        OldValue32 &= ACPI_MASK_BITS_BELOW (BitWidth - 1);
                    }

                    NewValue32 |= OldValue32;
                }

                Value64 = (UINT64) NewValue32;
                Status = AcpiOsWriteMemory ((ACPI_PHYSICAL_ADDRESS)
                    Address + Index * ACPI_DIV_8 (AccessWidth),
                    Value64, AccessWidth);
            }
            else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
            {
                if (BitOffset || BitWidth < AccessWidth)
                {
                    /*
                     * Read old values in order not to modify the bits that
                     * are beyond the register BitWidth/BitOffset setting.
                     */
                    Status = AcpiHwReadPort ((ACPI_IO_ADDRESS)
                        Address + Index * ACPI_DIV_8 (AccessWidth),
                        &OldValue32, AccessWidth);

                    if (BitOffset)
                    {
                        OldValue32 &= ACPI_MASK_BITS_ABOVE (BitOffset + 1);
                        BitOffset = 0;
                    }

                    if (BitWidth < AccessWidth)
                    {
                        OldValue32 &= ACPI_MASK_BITS_BELOW (BitWidth - 1);
                    }

                    NewValue32 |= OldValue32;
                }

                Status = AcpiHwWritePort ((ACPI_IO_ADDRESS)
                    Address + Index * ACPI_DIV_8 (AccessWidth),
                    NewValue32, AccessWidth);
            }
        }

        BitWidth -= BitWidth > AccessWidth ? AccessWidth : BitWidth;
        Index++;
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_IO,
        "Wrote: %8.8X width %2d   to %8.8X%8.8X (%s)\n",
        Value, AccessWidth, ACPI_FORMAT_UINT64 (Address),
        AcpiUtGetRegionName (Reg->SpaceId)));

    return (Status);
}
Exemplo n.º 13
0
ACPI_STATUS
AcpiEvAddrHandlerHelper (
    ACPI_HANDLE             ObjHandle,
    UINT32                  Level,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_OPERAND_OBJECT     *TmpObj;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_NAME ("EvAddrHandlerHelper");


    HandlerObj = (ACPI_OPERAND_OBJECT  *) Context;

    /* Parameter validation */

    if (!HandlerObj)
    {
        return (AE_OK);
    }

    /* Convert and validate the device handle */

    Node = AcpiNsMapHandleToNode (ObjHandle);
    if (!Node)
    {
        return (AE_BAD_PARAMETER);
    }

    /*
     *  We only care about regions.and objects
     *  that can have address handlers
     */
    if ((Node->Type != ACPI_TYPE_DEVICE) &&
        (Node->Type != ACPI_TYPE_REGION) &&
        (Node != AcpiGbl_RootNode))
    {
        return (AE_OK);
    }

    /* Check for an existing internal object */

    ObjDesc = AcpiNsGetAttachedObject (Node);
    if (!ObjDesc)
    {
        /*
         *  The object DNE, we don't care about it
         */
        return (AE_OK);
    }

    /*
     *  Devices are handled different than regions
     */
    if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_DEVICE)
    {
        /*
         *  See if this guy has any handlers
         */
        TmpObj = ObjDesc->Device.AddrHandler;
        while (TmpObj)
        {
            /*
             *  Now let's see if it's for the same address space.
             */
            if (TmpObj->AddrHandler.SpaceId == HandlerObj->AddrHandler.SpaceId)
            {
                /*
                 *  It's for the same address space
                 */
                ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                    "Found handler for region [%s] in device %p(%p) handler %p\n",
                    AcpiUtGetRegionName (HandlerObj->AddrHandler.SpaceId),
                    ObjDesc, TmpObj, HandlerObj));

                /*
                 *  Since the object we found it on was a device, then it
                 *  means that someone has already installed a handler for
                 *  the branch of the namespace from this device on.  Just
                 *  bail out telling the walk routine to not traverse this
                 *  branch.  This preserves the scoping rule for handlers.
                 */
                return (AE_CTRL_DEPTH);
            }

            /*
             *  Move through the linked list of handlers
             */
            TmpObj = TmpObj->AddrHandler.Next;
        }

        /*
         *  As long as the device didn't have a handler for this
         *  space we don't care about it.  We just ignore it and
         *  proceed.
         */
        return (AE_OK);
    }

    /*
     *  Only here if it was a region
     */
    if (ObjDesc->Region.SpaceId != HandlerObj->AddrHandler.SpaceId)
    {
        /*
         *  This region is for a different address space
         *  ignore it
         */
        return (AE_OK);
    }

    /*
     *  Now we have a region and it is for the handler's address
     *  space type.
     *
     *  First disconnect region for any previous handler (if any)
     */
    AcpiEvDetachRegion (ObjDesc, FALSE);

    /*
     *  Then connect the region to the new handler
     */
    Status = AcpiEvAttachRegion (HandlerObj, ObjDesc, FALSE);

    return (Status);
}
Exemplo n.º 14
0
void
AcpiEvDetachRegion(
    ACPI_OPERAND_OBJECT     *RegionObj,
    BOOLEAN                 AcpiNsIsLocked)
{
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     **LastObjPtr;
    ACPI_ADR_SPACE_SETUP    RegionSetup;
    void                    *RegionContext;
    ACPI_OPERAND_OBJECT     *RegionObj2;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE ("EvDetachRegion");


    RegionObj2 = AcpiNsGetSecondaryObject (RegionObj);
    if (!RegionObj2)
    {
        return_VOID;
    }
    RegionContext = RegionObj2->Extra.RegionContext;

    /*
     *  Get the address handler from the region object
     */
    HandlerObj = RegionObj->Region.AddrHandler;
    if (!HandlerObj)
    {
        /*
         *  This region has no handler, all done
         */
        return_VOID;
    }


    /*
     *  Find this region in the handler's list
     */
    ObjDesc = HandlerObj->AddrHandler.RegionList;
    LastObjPtr = &HandlerObj->AddrHandler.RegionList;

    while (ObjDesc)
    {
        /*
         *  See if this is the one
         */
        if (ObjDesc == RegionObj)
        {
            ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                "Removing Region %p from address handler %p\n",
                RegionObj, HandlerObj));
            /*
             *  This is it, remove it from the handler's list
             */
            *LastObjPtr = ObjDesc->Region.Next;
            ObjDesc->Region.Next = NULL;            /* Must clear field */

            if (AcpiNsIsLocked)
            {
                Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
                if (ACPI_FAILURE (Status))
                {
                    return_VOID;
                }
            }

            /*
             *  Now stop region accesses by executing the _REG method
             */
            Status = AcpiEvExecuteRegMethod (RegionObj, 0);
            if (ACPI_FAILURE (Status))
            {
                ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s from region _REG, [%s]\n",
                    AcpiFormatException (Status),
                    AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
            }

            if (AcpiNsIsLocked)
            {
                Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
                if (ACPI_FAILURE (Status))
                {
                    return_VOID;
                }
            }

            /*
             *  Call the setup handler with the deactivate notification
             */
            RegionSetup = HandlerObj->AddrHandler.Setup;
            Status = RegionSetup (RegionObj, ACPI_REGION_DEACTIVATE,
                            HandlerObj->AddrHandler.Context, &RegionContext);

            /*
             *  Init routine may fail, Just ignore errors
             */
            if (ACPI_FAILURE (Status))
            {
                ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s from region init, [%s]\n",
                    AcpiFormatException (Status),
                    AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
            }

            RegionObj->Region.Flags &= ~(AOPOBJ_SETUP_COMPLETE);

            /*
             *  Remove handler reference in the region
             *
             *  NOTE: this doesn't mean that the region goes away
             *  The region is just inaccessible as indicated to
             *  the _REG method
             *
             *  If the region is on the handler's list
             *  this better be the region's handler
             */
            RegionObj->Region.AddrHandler = NULL;

            return_VOID;

        } /* found the right handler */

        /*
         *  Move through the linked list of handlers
         */
        LastObjPtr = &ObjDesc->Region.Next;
        ObjDesc = ObjDesc->Region.Next;
    }

    /*
     *  If we get here, the region was not in the handler's region list
     */
    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
        "Cannot remove region %p from address handler %p\n",
        RegionObj, HandlerObj));

    return_VOID;
}
Exemplo n.º 15
0
ACPI_STATUS
AcpiEvAddressSpaceDispatch (
    ACPI_OPERAND_OBJECT     *RegionObj,
    UINT32                  Function,
    ACPI_PHYSICAL_ADDRESS   Address,
    UINT32                  BitWidth,
    void                    *Value)
{
    ACPI_STATUS             Status;
    ACPI_STATUS             Status2;
    ACPI_ADR_SPACE_HANDLER  Handler;
    ACPI_ADR_SPACE_SETUP    RegionSetup;
    ACPI_OPERAND_OBJECT     *HandlerDesc;
    ACPI_OPERAND_OBJECT     *RegionObj2;
    void                    *RegionContext = NULL;


    ACPI_FUNCTION_TRACE ("EvAddressSpaceDispatch");


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

    /*
     * Ensure that there is a handler associated with this region
     */
    HandlerDesc = RegionObj->Region.AddrHandler;
    if (!HandlerDesc)
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "no handler for region(%p) [%s]\n",
            RegionObj, AcpiUtGetRegionName (RegionObj->Region.SpaceId)));

        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    /*
     * It may be the case that the region has never been initialized
     * Some types of regions require special init code
     */
    if (!(RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE))
    {
        /*
         * This region has not been initialized yet, do it
         */
        RegionSetup = HandlerDesc->AddrHandler.Setup;
        if (!RegionSetup)
        {
            /*
             *  Bad news, no init routine and not init'd
             */
            ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No init routine for region(%p) [%s]\n",
                RegionObj, AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
            return_ACPI_STATUS (AE_UNKNOWN_STATUS);
        }

        /*
         * We must exit the interpreter because the region setup will potentially
         * execute control methods
         */
        AcpiExExitInterpreter ();

        Status = RegionSetup (RegionObj, ACPI_REGION_ACTIVATE,
                        HandlerDesc->AddrHandler.Context, &RegionContext);

        /* Re-enter the interpreter */

        Status2 = AcpiExEnterInterpreter ();
        if (ACPI_FAILURE (Status2))
        {
            return_ACPI_STATUS (Status2);
        }

        /*
         *  Init routine may fail
         */
        if (ACPI_FAILURE (Status))
        {
            ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Region Init: %s [%s]\n",
                AcpiFormatException (Status),
                AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
            return_ACPI_STATUS (Status);
        }

        RegionObj->Region.Flags |= AOPOBJ_SETUP_COMPLETE;

        /*
         *  Save the returned context for use in all accesses to
         *  this particular region.
         */
        RegionObj2->Extra.RegionContext = RegionContext;
    }

    /*
     *  We have everything we need, begin the process
     */
    Handler = HandlerDesc->AddrHandler.Handler;

    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
        "Addrhandler %p (%p), Address %8.8X%8.8X\n",
        &RegionObj->Region.AddrHandler->AddrHandler, Handler,
        ACPI_HIDWORD (Address), ACPI_LODWORD (Address)));

    if (!(HandlerDesc->AddrHandler.Flags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED))
    {
        /*
         *  For handlers other than the default (supplied) handlers, we must
         *  exit the interpreter because the handler *might* block -- we don't
         *  know what it will do, so we can't hold the lock on the intepreter.
         */
        AcpiExExitInterpreter();
    }

    /*
     *  Invoke the handler.
     */
    Status = Handler (Function, Address, BitWidth, Value,
                      HandlerDesc->AddrHandler.Context,
                      RegionObj2->Extra.RegionContext);

    if (ACPI_FAILURE (Status))
    {
        ACPI_REPORT_ERROR (("Handler for [%s] returned %s\n",
            AcpiUtGetRegionName (RegionObj->Region.SpaceId),
            AcpiFormatException (Status)));
    }

    if (!(HandlerDesc->AddrHandler.Flags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED))
    {
        /*
         * We just returned from a non-default handler, we must re-enter the
         * interpreter
         */
        Status2 = AcpiExEnterInterpreter ();
        if (ACPI_FAILURE (Status2))
        {
            return_ACPI_STATUS (Status2);
        }
    }

    return_ACPI_STATUS (Status);
}
Exemplo n.º 16
0
ACPI_STATUS
AcpiEvInitializeRegion (
    ACPI_OPERAND_OBJECT     *RegionObj,
    BOOLEAN                 AcpiNsLocked)
{
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_ADR_SPACE_TYPE     SpaceId;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;
    ACPI_NAMESPACE_NODE     *MethodNode;
    ACPI_NAME               *RegNamePtr = (ACPI_NAME *) METHOD_NAME__REG;
    ACPI_OPERAND_OBJECT     *RegionObj2;


    ACPI_FUNCTION_TRACE_U32 (EvInitializeRegion, AcpiNsLocked);


    if (!RegionObj)
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    if (RegionObj->Common.Flags & AOPOBJ_OBJECT_INITIALIZED)
    {
        return_ACPI_STATUS (AE_OK);
    }

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

    Node = AcpiNsGetParentNode (RegionObj->Region.Node);
    SpaceId = RegionObj->Region.SpaceId;

    /* Setup defaults */

    RegionObj->Region.Handler = NULL;
    RegionObj2->Extra.Method_REG = NULL;
    RegionObj->Common.Flags &= ~(AOPOBJ_SETUP_COMPLETE);
    RegionObj->Common.Flags |= AOPOBJ_OBJECT_INITIALIZED;

    /* Find any "_REG" method associated with this region definition */

    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;
    }

    /*
     * The following loop depends upon the root Node having no parent
     * ie: AcpiGbl_RootNode->ParentEntry being set to NULL
     */
    while (Node)
    {
        /* Check to see if a handler exists */

        HandlerObj = NULL;
        ObjDesc = AcpiNsGetAttachedObject (Node);
        if (ObjDesc)
        {
            /* Can only be a handler if the object exists */

            switch (Node->Type)
            {
            case ACPI_TYPE_DEVICE:

                HandlerObj = ObjDesc->Device.Handler;
                break;

            case ACPI_TYPE_PROCESSOR:

                HandlerObj = ObjDesc->Processor.Handler;
                break;

            case ACPI_TYPE_THERMAL:

                HandlerObj = ObjDesc->ThermalZone.Handler;
                break;

            default:
                /* Ignore other objects */
                break;
            }

            while (HandlerObj)
            {
                /* Is this handler of the correct type? */

                if (HandlerObj->AddressSpace.SpaceId == SpaceId)
                {
                    /* Found correct handler */

                    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                        "Found handler %p for region %p in obj %p\n",
                        HandlerObj, RegionObj, ObjDesc));

                    Status = AcpiEvAttachRegion (HandlerObj, RegionObj,
                                AcpiNsLocked);

                    /*
                     * Tell all users that this region is usable by
                     * running the _REG method
                     */
                    if (AcpiNsLocked)
                    {
                        Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
                        if (ACPI_FAILURE (Status))
                        {
                            return_ACPI_STATUS (Status);
                        }
                    }

                    Status = AcpiEvExecuteRegMethod (RegionObj, 1);

                    if (AcpiNsLocked)
                    {
                        Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
                        if (ACPI_FAILURE (Status))
                        {
                            return_ACPI_STATUS (Status);
                        }
                    }

                    return_ACPI_STATUS (AE_OK);
                }

                /* Try next handler in the list */

                HandlerObj = HandlerObj->AddressSpace.Next;
            }
        }

        /* This node does not have the handler we need; Pop up one level */

        Node = AcpiNsGetParentNode (Node);
    }

    /* If we get here, there is no handler for this region */

    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
        "No handler for RegionType %s(%X) (RegionObj %p)\n",
        AcpiUtGetRegionName (SpaceId), SpaceId, RegionObj));

    return_ACPI_STATUS (AE_NOT_EXIST);
}
Exemplo n.º 17
0
ACPI_STATUS
AcpiRemoveAddressSpaceHandler (
    ACPI_HANDLE             Device,
    ACPI_ADR_SPACE_TYPE     SpaceId,
    ACPI_ADR_SPACE_HANDLER  Handler)
{
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_OPERAND_OBJECT     *RegionObj;
    ACPI_OPERAND_OBJECT     **LastObjPtr;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE ("AcpiRemoveAddressSpaceHandler");


    /* Parameter validation */

    if (!Device)
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Convert and validate the device handle */

    Node = AcpiNsMapHandleToNode (Device);
    if (!Node)
    {
        Status = AE_BAD_PARAMETER;
        goto UnlockAndExit;
    }

    /* Make sure the internal object exists */

    ObjDesc = AcpiNsGetAttachedObject (Node);
    if (!ObjDesc)
    {
        Status = AE_NOT_EXIST;
        goto UnlockAndExit;
    }

    /*
     * find the address handler the user requested
     */
    HandlerObj = ObjDesc->Device.AddrHandler;
    LastObjPtr = &ObjDesc->Device.AddrHandler;
    while (HandlerObj)
    {
        /*
         * We have a handler, see if user requested this one
         */
        if (HandlerObj->AddrHandler.SpaceId == SpaceId)
        {
            /*
             * Got it, first dereference this in the Regions
             */
            ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                "Removing address handler %p(%p) for region %s on Device %p(%p)\n",
                HandlerObj, Handler, AcpiUtGetRegionName (SpaceId),
                Node, ObjDesc));

            RegionObj = HandlerObj->AddrHandler.RegionList;

            /* Walk the handler's region list */

            while (RegionObj)
            {
                /*
                 * First disassociate the handler from the region.
                 *
                 * NOTE: this doesn't mean that the region goes away
                 * The region is just inaccessible as indicated to
                 * the _REG method
                 */
                AcpiEvDetachRegion (RegionObj, TRUE);

                /*
                 * Walk the list, since we took the first region and it
                 * was removed from the list by the dissassociate call
                 * we just get the first item on the list again
                 */
                RegionObj = HandlerObj->AddrHandler.RegionList;

            }

            /*
             * Remove this Handler object from the list
             */
            *LastObjPtr = HandlerObj->AddrHandler.Next;

            /*
             * Now we can delete the handler object
             */
            AcpiUtRemoveReference (HandlerObj);
            AcpiUtRemoveReference (HandlerObj);

            goto UnlockAndExit;
        }

        /*
         * Move through the linked list of handlers
         */
        LastObjPtr = &HandlerObj->AddrHandler.Next;
        HandlerObj = HandlerObj->AddrHandler.Next;
    }


    /*
     * The handler does not exist
     */
    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
        "Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n",
        Handler, AcpiUtGetRegionName (SpaceId), SpaceId, Node, ObjDesc));

    Status = AE_NOT_EXIST;


UnlockAndExit:
    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
    return_ACPI_STATUS (Status);
}
Exemplo n.º 18
0
ACPI_STATUS
AcpiNsDumpOneObject (
    ACPI_HANDLE             ObjHandle,
    UINT32                  Level,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_WALK_INFO          *Info = (ACPI_WALK_INFO *) Context;
    ACPI_NAMESPACE_NODE     *ThisNode;
    ACPI_OPERAND_OBJECT     *ObjDesc = NULL;
    ACPI_OBJECT_TYPE        ObjType;
    ACPI_OBJECT_TYPE        Type;
    UINT32                  BytesToDump;
    UINT32                  DbgLevel;
    UINT32                  i;


    ACPI_FUNCTION_NAME (NsDumpOneObject);


    /* Is output enabled? */

    if (!(AcpiDbgLevel & Info->DebugLevel))
    {
        return (AE_OK);
    }

    if (!ObjHandle)
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Null object handle\n"));
        return (AE_OK);
    }

    ThisNode = AcpiNsValidateHandle (ObjHandle);
    if (!ThisNode)
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Invalid object handle %p\n",
            ObjHandle));
        return (AE_OK);
    }

    Type = ThisNode->Type;

    /* Check if the owner matches */

    if ((Info->OwnerId != ACPI_OWNER_ID_MAX) &&
        (Info->OwnerId != ThisNode->OwnerId))
    {
        return (AE_OK);
    }

    if (!(Info->DisplayType & ACPI_DISPLAY_SHORT))
    {
        /* Indent the object according to the level */

        AcpiOsPrintf ("%2d%*s", (UINT32) Level - 1, (int) Level * 2, " ");

        /* Check the node type and name */

        if (Type > ACPI_TYPE_LOCAL_MAX)
        {
            ACPI_WARNING ((AE_INFO,
                "Invalid ACPI Object Type 0x%08X", Type));
        }

        AcpiOsPrintf ("%4.4s", AcpiUtGetNodeName (ThisNode));
    }

    /* Now we can print out the pertinent information */

    AcpiOsPrintf (" %-12s %p %2.2X ",
        AcpiUtGetTypeName (Type), ThisNode, ThisNode->OwnerId);

    DbgLevel = AcpiDbgLevel;
    AcpiDbgLevel = 0;
    ObjDesc = AcpiNsGetAttachedObject (ThisNode);
    AcpiDbgLevel = DbgLevel;

    /* Temp nodes are those nodes created by a control method */

    if (ThisNode->Flags & ANOBJ_TEMPORARY)
    {
        AcpiOsPrintf ("(T) ");
    }

    switch (Info->DisplayType & ACPI_DISPLAY_MASK)
    {
    case ACPI_DISPLAY_SUMMARY:

        if (!ObjDesc)
        {
            /* No attached object. Some types should always have an object */

            switch (Type)
            {
            case ACPI_TYPE_INTEGER:
            case ACPI_TYPE_PACKAGE:
            case ACPI_TYPE_BUFFER:
            case ACPI_TYPE_STRING:
            case ACPI_TYPE_METHOD:

                AcpiOsPrintf ("<No attached object>");
                break;

            default:

                break;
            }

            AcpiOsPrintf ("\n");
            return (AE_OK);
        }

        switch (Type)
        {
        case ACPI_TYPE_PROCESSOR:

            AcpiOsPrintf ("ID %02X Len %02X Addr %8.8X%8.8X\n",
                ObjDesc->Processor.ProcId, ObjDesc->Processor.Length,
                ACPI_FORMAT_UINT64 (ObjDesc->Processor.Address));
            break;

        case ACPI_TYPE_DEVICE:

            AcpiOsPrintf ("Notify Object: %p\n", ObjDesc);
            break;

        case ACPI_TYPE_METHOD:

            AcpiOsPrintf ("Args %X Len %.4X Aml %p\n",
                (UINT32) ObjDesc->Method.ParamCount,
                ObjDesc->Method.AmlLength, ObjDesc->Method.AmlStart);
            break;

        case ACPI_TYPE_INTEGER:

            AcpiOsPrintf ("= %8.8X%8.8X\n",
                ACPI_FORMAT_UINT64 (ObjDesc->Integer.Value));
            break;

        case ACPI_TYPE_PACKAGE:

            if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
            {
                AcpiOsPrintf ("Elements %.2X\n",
                    ObjDesc->Package.Count);
            }
            else
            {
                AcpiOsPrintf ("[Length not yet evaluated]\n");
            }
            break;

        case ACPI_TYPE_BUFFER:

            if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
            {
                AcpiOsPrintf ("Len %.2X",
                    ObjDesc->Buffer.Length);

                /* Dump some of the buffer */

                if (ObjDesc->Buffer.Length > 0)
                {
                    AcpiOsPrintf (" =");
                    for (i = 0; (i < ObjDesc->Buffer.Length && i < 12); i++)
                    {
                        AcpiOsPrintf (" %.2hX", ObjDesc->Buffer.Pointer[i]);
                    }
                }
                AcpiOsPrintf ("\n");
            }
            else
            {
                AcpiOsPrintf ("[Length not yet evaluated]\n");
            }
            break;

        case ACPI_TYPE_STRING:

            AcpiOsPrintf ("Len %.2X ", ObjDesc->String.Length);
            AcpiUtPrintString (ObjDesc->String.Pointer, 80);
            AcpiOsPrintf ("\n");
            break;

        case ACPI_TYPE_REGION:

            AcpiOsPrintf ("[%s]",
                AcpiUtGetRegionName (ObjDesc->Region.SpaceId));
            if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
            {
                AcpiOsPrintf (" Addr %8.8X%8.8X Len %.4X\n",
                    ACPI_FORMAT_UINT64 (ObjDesc->Region.Address),
                    ObjDesc->Region.Length);
            }
            else
            {
                AcpiOsPrintf (" [Address/Length not yet evaluated]\n");
            }
            break;

        case ACPI_TYPE_LOCAL_REFERENCE:

            AcpiOsPrintf ("[%s]\n", AcpiUtGetReferenceName (ObjDesc));
            break;

        case ACPI_TYPE_BUFFER_FIELD:

            if (ObjDesc->BufferField.BufferObj &&
                ObjDesc->BufferField.BufferObj->Buffer.Node)
            {
                AcpiOsPrintf ("Buf [%4.4s]",
                    AcpiUtGetNodeName (
                        ObjDesc->BufferField.BufferObj->Buffer.Node));
            }
            break;

        case ACPI_TYPE_LOCAL_REGION_FIELD:

            AcpiOsPrintf ("Rgn [%4.4s]",
                AcpiUtGetNodeName (
                    ObjDesc->CommonField.RegionObj->Region.Node));
            break;

        case ACPI_TYPE_LOCAL_BANK_FIELD:

            AcpiOsPrintf ("Rgn [%4.4s] Bnk [%4.4s]",
                AcpiUtGetNodeName (
                    ObjDesc->CommonField.RegionObj->Region.Node),
                AcpiUtGetNodeName (
                    ObjDesc->BankField.BankObj->CommonField.Node));
            break;

        case ACPI_TYPE_LOCAL_INDEX_FIELD:

            AcpiOsPrintf ("Idx [%4.4s] Dat [%4.4s]",
                AcpiUtGetNodeName (
                    ObjDesc->IndexField.IndexObj->CommonField.Node),
                AcpiUtGetNodeName (
                    ObjDesc->IndexField.DataObj->CommonField.Node));
            break;

        case ACPI_TYPE_LOCAL_ALIAS:
        case ACPI_TYPE_LOCAL_METHOD_ALIAS:

            AcpiOsPrintf ("Target %4.4s (%p)\n",
                AcpiUtGetNodeName (ObjDesc), ObjDesc);
            break;

        default:

            AcpiOsPrintf ("Object %p\n", ObjDesc);
            break;
        }

        /* Common field handling */

        switch (Type)
        {
        case ACPI_TYPE_BUFFER_FIELD:
        case ACPI_TYPE_LOCAL_REGION_FIELD:
        case ACPI_TYPE_LOCAL_BANK_FIELD:
        case ACPI_TYPE_LOCAL_INDEX_FIELD:

            AcpiOsPrintf (" Off %.3X Len %.2X Acc %.2hd\n",
                (ObjDesc->CommonField.BaseByteOffset * 8)
                    + ObjDesc->CommonField.StartFieldBitOffset,
                ObjDesc->CommonField.BitLength,
                ObjDesc->CommonField.AccessByteWidth);
            break;

        default:

            break;
        }
        break;

    case ACPI_DISPLAY_OBJECTS:

        AcpiOsPrintf ("O:%p", ObjDesc);
        if (!ObjDesc)
        {
            /* No attached object, we are done */

            AcpiOsPrintf ("\n");
            return (AE_OK);
        }

        AcpiOsPrintf ("(R%u)", ObjDesc->Common.ReferenceCount);

        switch (Type)
        {
        case ACPI_TYPE_METHOD:

            /* Name is a Method and its AML offset/length are set */

            AcpiOsPrintf (" M:%p-%X\n", ObjDesc->Method.AmlStart,
                ObjDesc->Method.AmlLength);
            break;

        case ACPI_TYPE_INTEGER:

            AcpiOsPrintf (" I:%8.8X8.8%X\n",
                ACPI_FORMAT_UINT64 (ObjDesc->Integer.Value));
            break;

        case ACPI_TYPE_STRING:

            AcpiOsPrintf (" S:%p-%X\n", ObjDesc->String.Pointer,
                ObjDesc->String.Length);
            break;

        case ACPI_TYPE_BUFFER:

            AcpiOsPrintf (" B:%p-%X\n", ObjDesc->Buffer.Pointer,
                ObjDesc->Buffer.Length);
            break;

        default:

            AcpiOsPrintf ("\n");
            break;
        }
        break;

    default:
        AcpiOsPrintf ("\n");
        break;
    }

    /* If debug turned off, done */

    if (!(AcpiDbgLevel & ACPI_LV_VALUES))
    {
        return (AE_OK);
    }

    /* If there is an attached object, display it */

    DbgLevel = AcpiDbgLevel;
    AcpiDbgLevel = 0;
    ObjDesc = AcpiNsGetAttachedObject (ThisNode);
    AcpiDbgLevel = DbgLevel;

    /* Dump attached objects */

    while (ObjDesc)
    {
        ObjType = ACPI_TYPE_INVALID;
        AcpiOsPrintf ("Attached Object %p: ", ObjDesc);

        /* Decode the type of attached object and dump the contents */

        switch (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc))
        {
        case ACPI_DESC_TYPE_NAMED:

            AcpiOsPrintf ("(Ptr to Node)\n");
            BytesToDump = sizeof (ACPI_NAMESPACE_NODE);
            ACPI_DUMP_BUFFER (ObjDesc, BytesToDump);
            break;

        case ACPI_DESC_TYPE_OPERAND:

            ObjType = ObjDesc->Common.Type;

            if (ObjType > ACPI_TYPE_LOCAL_MAX)
            {
                AcpiOsPrintf (
                    "(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
                    ObjType);

                BytesToDump = 32;
            }
            else
            {
                AcpiOsPrintf (
                    "(Pointer to ACPI Object type %.2X [%s])\n",
                    ObjType, AcpiUtGetTypeName (ObjType));

                BytesToDump = sizeof (ACPI_OPERAND_OBJECT);
            }

            ACPI_DUMP_BUFFER (ObjDesc, BytesToDump);
            break;

        default:

            break;
        }

        /* If value is NOT an internal object, we are done */

        if (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) != ACPI_DESC_TYPE_OPERAND)
        {
            goto Cleanup;
        }

        /* Valid object, get the pointer to next level, if any */

        switch (ObjType)
        {
        case ACPI_TYPE_BUFFER:
        case ACPI_TYPE_STRING:
            /*
             * NOTE: takes advantage of common fields between string/buffer
             */
            BytesToDump = ObjDesc->String.Length;
            ObjDesc = (void *) ObjDesc->String.Pointer;

            AcpiOsPrintf ("(Buffer/String pointer %p length %X)\n",
                ObjDesc, BytesToDump);
            ACPI_DUMP_BUFFER (ObjDesc, BytesToDump);
            goto Cleanup;

        case ACPI_TYPE_BUFFER_FIELD:

            ObjDesc = (ACPI_OPERAND_OBJECT *) ObjDesc->BufferField.BufferObj;
            break;

        case ACPI_TYPE_PACKAGE:

            ObjDesc = (void *) ObjDesc->Package.Elements;
            break;

        case ACPI_TYPE_METHOD:

            ObjDesc = (void *) ObjDesc->Method.AmlStart;
            break;

        case ACPI_TYPE_LOCAL_REGION_FIELD:

            ObjDesc = (void *) ObjDesc->Field.RegionObj;
            break;

        case ACPI_TYPE_LOCAL_BANK_FIELD:

            ObjDesc = (void *) ObjDesc->BankField.RegionObj;
            break;

        case ACPI_TYPE_LOCAL_INDEX_FIELD:

            ObjDesc = (void *) ObjDesc->IndexField.IndexObj;
            break;

        default:

            goto Cleanup;
        }

        ObjType = ACPI_TYPE_INVALID;   /* Terminate loop after next pass */
    }

Cleanup:
    AcpiOsPrintf ("\n");
    return (AE_OK);
}
Exemplo n.º 19
0
ACPI_STATUS
AeInstallHandlers (void)
{
    ACPI_STATUS             Status;
    UINT32                  i;
    ACPI_HANDLE             Handle;


    ACPI_FUNCTION_ENTRY ();


    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 handler */

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

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

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

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

    /* Set a handler for all supported operation regions */

    for (i = 0; i < AEXEC_NUM_REGIONS; i++)
    {
        Status = AcpiRemoveAddressSpaceHandler (AcpiGbl_RootNode,
                        SpaceId[i], AeRegionHandler);

        /* Install handler at the root object.
         * TBD: all default handlers should be installed here!
         */
        Status = AcpiInstallAddressSpaceHandler (AcpiGbl_RootNode,
                        SpaceId[i], AeRegionHandler, AeRegionInit, NULL);
        if (ACPI_FAILURE (Status))
        {
            ACPI_EXCEPTION ((AE_INFO, Status,
                "Could not install an OpRegion handler for %s space(%u)",
                AcpiUtGetRegionName((UINT8) SpaceId[i]), SpaceId[i]));
            return (Status);
        }
    }

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

    return Status;
}
Exemplo n.º 20
0
ACPI_STATUS
AcpiEvInstallSpaceHandler (
    ACPI_NAMESPACE_NODE     *Node,
    ACPI_ADR_SPACE_TYPE     SpaceId,
    ACPI_ADR_SPACE_HANDLER  Handler,
    ACPI_ADR_SPACE_SETUP    Setup,
    void                    *Context)
{
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_STATUS             Status = AE_OK;
    ACPI_OBJECT_TYPE        Type;
    UINT8                   Flags = 0;


    ACPI_FUNCTION_TRACE (EvInstallSpaceHandler);


    /*
     * This registration is valid for only the types below and the root.
     * The root node is where the default handlers get installed.
     */
    if ((Node->Type != ACPI_TYPE_DEVICE)     &&
            (Node->Type != ACPI_TYPE_PROCESSOR)  &&
            (Node->Type != ACPI_TYPE_THERMAL)    &&
            (Node != AcpiGbl_RootNode))
    {
        Status = AE_BAD_PARAMETER;
        goto UnlockAndExit;
    }

    if (Handler == ACPI_DEFAULT_HANDLER)
    {
        Flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED;

        switch (SpaceId)
        {
        case ACPI_ADR_SPACE_SYSTEM_MEMORY:

            Handler = AcpiExSystemMemorySpaceHandler;
            Setup   = AcpiEvSystemMemoryRegionSetup;
            break;

        case ACPI_ADR_SPACE_SYSTEM_IO:

            Handler = AcpiExSystemIoSpaceHandler;
            Setup   = AcpiEvIoSpaceRegionSetup;
            break;

        case ACPI_ADR_SPACE_PCI_CONFIG:

            Handler = AcpiExPciConfigSpaceHandler;
            Setup   = AcpiEvPciConfigRegionSetup;
            break;

        case ACPI_ADR_SPACE_CMOS:

            Handler = AcpiExCmosSpaceHandler;
            Setup   = AcpiEvCmosRegionSetup;
            break;

        case ACPI_ADR_SPACE_PCI_BAR_TARGET:

            Handler = AcpiExPciBarSpaceHandler;
            Setup   = AcpiEvPciBarRegionSetup;
            break;

        case ACPI_ADR_SPACE_DATA_TABLE:

            Handler = AcpiExDataTableSpaceHandler;
            Setup   = NULL;
            break;

        default:

            Status = AE_BAD_PARAMETER;
            goto UnlockAndExit;
        }
    }

    /* If the caller hasn't specified a setup routine, use the default */

    if (!Setup)
    {
        Setup = AcpiEvDefaultRegionSetup;
    }

    /* Check for an existing internal object */

    ObjDesc = AcpiNsGetAttachedObject (Node);
    if (ObjDesc)
    {
        /*
         * The attached device object already exists. Now make sure
         * the handler is not already installed.
         */
        HandlerObj = AcpiEvFindRegionHandler (SpaceId,
                                              ObjDesc->CommonNotify.Handler);

        if (HandlerObj)
        {
            if (HandlerObj->AddressSpace.Handler == Handler)
            {
                /*
                 * It is (relatively) OK to attempt to install the SAME
                 * handler twice. This can easily happen with the
                 * PCI_Config space.
                 */
                Status = AE_SAME_HANDLER;
                goto UnlockAndExit;
            }
            else
            {
                /* A handler is already installed */

                Status = AE_ALREADY_EXISTS;
            }

            goto UnlockAndExit;
        }
    }
    else
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                           "Creating object on Device %p while installing handler\n",
                           Node));

        /* ObjDesc does not exist, create one */

        if (Node->Type == ACPI_TYPE_ANY)
        {
            Type = ACPI_TYPE_DEVICE;
        }
        else
        {
            Type = Node->Type;
        }

        ObjDesc = AcpiUtCreateInternalObject (Type);
        if (!ObjDesc)
        {
            Status = AE_NO_MEMORY;
            goto UnlockAndExit;
        }

        /* Init new descriptor */

        ObjDesc->Common.Type = (UINT8) Type;

        /* Attach the new object to the Node */

        Status = AcpiNsAttachObject (Node, ObjDesc, Type);

        /* Remove local reference to the object */

        AcpiUtRemoveReference (ObjDesc);

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

    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                       "Installing address handler for region %s(%X) "
                       "on Device %4.4s %p(%p)\n",
                       AcpiUtGetRegionName (SpaceId), SpaceId,
                       AcpiUtGetNodeName (Node), Node, ObjDesc));

    /*
     * Install the handler
     *
     * At this point there is no existing handler. Just allocate the object
     * for the handler and link it into the list.
     */
    HandlerObj = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
    if (!HandlerObj)
    {
        Status = AE_NO_MEMORY;
        goto UnlockAndExit;
    }

    /* Init handler obj */

    HandlerObj->AddressSpace.SpaceId = (UINT8) SpaceId;
    HandlerObj->AddressSpace.HandlerFlags = Flags;
    HandlerObj->AddressSpace.RegionList = NULL;
    HandlerObj->AddressSpace.Node = Node;
    HandlerObj->AddressSpace.Handler = Handler;
    HandlerObj->AddressSpace.Context = Context;
    HandlerObj->AddressSpace.Setup = Setup;

    /* Install at head of Device.AddressSpace list */

    HandlerObj->AddressSpace.Next = ObjDesc->CommonNotify.Handler;

    /*
     * The Device object is the first reference on the HandlerObj.
     * Each region that uses the handler adds a reference.
     */
    ObjDesc->CommonNotify.Handler = HandlerObj;

    /*
     * Walk the namespace finding all of the regions this handler will
     * manage.
     *
     * Start at the device and search the branch toward the leaf nodes
     * until either the leaf is encountered or a device is detected that
     * has an address handler of the same type.
     *
     * In either case, back up and search down the remainder of the branch
     */
    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, Node,
                                  ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
                                  AcpiEvInstallHandler, NULL, HandlerObj, NULL);

UnlockAndExit:
    return_ACPI_STATUS (Status);
}
Exemplo n.º 21
0
ACPI_STATUS
AeRegionHandler (
    UINT32                  Function,
    ACPI_PHYSICAL_ADDRESS   Address,
    UINT32                  BitWidth,
    UINT64                  *Value,
    void                    *HandlerContext,
    void                    *RegionContext)
{

    ACPI_OPERAND_OBJECT     *RegionObject = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, RegionContext);
    UINT8                   *Buffer = ACPI_CAST_PTR (UINT8, Value);
    ACPI_PHYSICAL_ADDRESS   BaseAddress;
    ACPI_SIZE               Length;
    BOOLEAN                 BufferExists;
    AE_REGION               *RegionElement;
    void                    *BufferValue;
    ACPI_STATUS             Status;
    UINT32                  ByteWidth;
    UINT32                  i;
    UINT8                   SpaceId;


    ACPI_FUNCTION_NAME (AeRegionHandler);

    /*
     * If the object is not a region, simply return
     */
    if (RegionObject->Region.Type != ACPI_TYPE_REGION)
    {
        return AE_OK;
    }

    /*
     * Region support can be disabled with the -r option.
     * We use this to support dynamically loaded tables where we pass a valid
     * address to the AML.
     */
    if (AcpiGbl_DbOpt_NoRegionSupport)
    {
        BufferValue = ACPI_TO_POINTER (Address);
        ByteWidth = (BitWidth / 8);

        if (BitWidth % 8)
        {
            ByteWidth += 1;
        }
        goto DoFunction;
    }

    /*
     * Find the region's address space and length before searching
     * the linked list.
     */
    BaseAddress = RegionObject->Region.Address;
    Length = (ACPI_SIZE) RegionObject->Region.Length;
    SpaceId = RegionObject->Region.SpaceId;

    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, "Operation Region request on %s at 0x%X\n",
            AcpiUtGetRegionName (RegionObject->Region.SpaceId),
            (UINT32) Address));

    switch (SpaceId)
    {
    case ACPI_ADR_SPACE_SYSTEM_IO:
        /*
         * For I/O space, exercise the port validation
         */
        switch (Function & ACPI_IO_MASK)
        {
        case ACPI_READ:
            Status = AcpiHwReadPort (Address, (UINT32 *) Value, BitWidth);
            break;

        case ACPI_WRITE:
            Status = AcpiHwWritePort (Address, (UINT32) *Value, BitWidth);
            break;

        default:
            Status = AE_BAD_PARAMETER;
            break;
        }

        if (ACPI_FAILURE (Status))
        {
            return (Status);
        }

        /* Now go ahead and simulate the hardware */
        break;


    case ACPI_ADR_SPACE_SMBUS:

        Length = 0;

        switch (Function & ACPI_IO_MASK)
        {
        case ACPI_READ:
            switch (Function >> 16)
            {
            case AML_FIELD_ATTRIB_SMB_QUICK:
            case AML_FIELD_ATTRIB_SMB_SEND_RCV:
            case AML_FIELD_ATTRIB_SMB_BYTE:
                Length = 1;
                break;

            case AML_FIELD_ATTRIB_SMB_WORD:
            case AML_FIELD_ATTRIB_SMB_WORD_CALL:
                Length = 2;
                break;

            case AML_FIELD_ATTRIB_SMB_BLOCK:
            case AML_FIELD_ATTRIB_SMB_BLOCK_CALL:
                Length = 32;
                break;

            default:
                break;
            }
            break;

        case ACPI_WRITE:
            switch (Function >> 16)
            {
            case AML_FIELD_ATTRIB_SMB_QUICK:
            case AML_FIELD_ATTRIB_SMB_SEND_RCV:
            case AML_FIELD_ATTRIB_SMB_BYTE:
            case AML_FIELD_ATTRIB_SMB_WORD:
            case AML_FIELD_ATTRIB_SMB_BLOCK:
                Length = 0;
                break;

            case AML_FIELD_ATTRIB_SMB_WORD_CALL:
                Length = 2;
                break;

            case AML_FIELD_ATTRIB_SMB_BLOCK_CALL:
                Length = 32;
                break;

            default:
                break;
            }
            break;

        default:
            break;
        }

        for (i = 0; i < Length; i++)
        {
            Buffer[i+2] = (UINT8) (0xA0 + i);
        }

        Buffer[0] = 0x7A;
        Buffer[1] = (UINT8) Length;
        return (AE_OK);


    case ACPI_ADR_SPACE_IPMI: /* ACPI 4.0 */

        AcpiOsPrintf ("AcpiExec: Received IPMI request: "
            "Address %X BaseAddress %X Length %X Width %X BufferLength %u\n",
            (UINT32) Address, (UINT32) BaseAddress,
            Length, BitWidth, Buffer[1]);

        /*
         * Regardless of a READ or WRITE, this handler is passed a 66-byte
         * buffer in which to return the IPMI status/length/data.
         *
         * Return some example data to show use of the bidirectional buffer
         */
        Buffer[0] = 0;       /* Status byte */
        Buffer[1] = 64;      /* Return buffer data length */
        Buffer[2] = 0;       /* Completion code */
        Buffer[3] = 0x34;    /* Power measurement */
        Buffer[4] = 0x12;    /* Power measurement */
        Buffer[65] = 0xEE;   /* last buffer byte */
        return (AE_OK);

    default:
        break;
    }

    /*
     * Search through the linked list for this region's buffer
     */
    BufferExists = FALSE;
    RegionElement = AeRegions.RegionList;

    if (AeRegions.NumberOfRegions)
    {
        while (!BufferExists && RegionElement)
        {
            if (RegionElement->Address == BaseAddress &&
                RegionElement->Length == Length &&
                RegionElement->SpaceId == SpaceId)
            {
                BufferExists = TRUE;
            }
            else
            {
                RegionElement = RegionElement->NextRegion;
            }
        }
    }

    /*
     * If the Region buffer does not exist, create it now
     */
    if (!BufferExists)
    {
        /*
         * Do the memory allocations first
         */
        RegionElement = AcpiOsAllocate (sizeof (AE_REGION));
        if (!RegionElement)
        {
            return AE_NO_MEMORY;
        }

        RegionElement->Buffer = AcpiOsAllocate (Length);
        if (!RegionElement->Buffer)
        {
            AcpiOsFree (RegionElement);
            return AE_NO_MEMORY;
        }

        /* Initialize the region with the default fill value */

        ACPI_MEMSET (RegionElement->Buffer, AcpiGbl_RegionFillValue, Length);

        RegionElement->Address      = BaseAddress;
        RegionElement->Length       = Length;
        RegionElement->SpaceId      = SpaceId;
        RegionElement->NextRegion   = NULL;

        /*
         * Increment the number of regions and put this one
         *  at the head of the list as it will probably get accessed
         *  more often anyway.
         */
        AeRegions.NumberOfRegions += 1;

        if (AeRegions.RegionList)
        {
            RegionElement->NextRegion = AeRegions.RegionList;
        }

        AeRegions.RegionList = RegionElement;
    }

    /*
     * Calculate the size of the memory copy
     */
    ByteWidth = (BitWidth / 8);

    if (BitWidth % 8)
    {
        ByteWidth += 1;
    }

    /*
     * The buffer exists and is pointed to by RegionElement.
     * We now need to verify the request is valid and perform the operation.
     *
     * NOTE: RegionElement->Length is in bytes, therefore it we compare against
     * ByteWidth (see above)
     */
    if (((UINT64) Address + ByteWidth) >
        ((UINT64)(RegionElement->Address) + RegionElement->Length))
    {
        ACPI_WARNING ((AE_INFO,
            "Request on [%4.4s] is beyond region limit Req-0x%X+0x%X, Base=0x%X, Len-0x%X",
            (RegionObject->Region.Node)->Name.Ascii, (UINT32) Address,
            ByteWidth, (UINT32)(RegionElement->Address),
            RegionElement->Length));

        return AE_AML_REGION_LIMIT;
    }

    /*
     * Get BufferValue to point to the "address" in the buffer
     */
    BufferValue = ((UINT8 *) RegionElement->Buffer +
                    ((UINT64) Address - (UINT64) RegionElement->Address));

DoFunction:

    /*
     * Perform a read or write to the buffer space
     */
    switch (Function)
    {
    case ACPI_READ:
        /*
         * Set the pointer Value to whatever is in the buffer
         */
        ACPI_MEMCPY (Value, BufferValue, ByteWidth);
        break;

    case ACPI_WRITE:
        /*
         * Write the contents of Value to the buffer
         */
        ACPI_MEMCPY (BufferValue, Value, ByteWidth);
        break;

    default:
        return AE_BAD_PARAMETER;
    }
    return AE_OK;
}
Exemplo n.º 22
0
ACPI_STATUS
AcpiEvInitializeRegion (
    ACPI_OPERAND_OBJECT     *RegionObj,
    BOOLEAN                 AcpiNsLocked)
{
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_ADR_SPACE_TYPE     SpaceId;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE_U32 (EvInitializeRegion, AcpiNsLocked);


    if (!RegionObj)
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    if (RegionObj->Common.Flags & AOPOBJ_OBJECT_INITIALIZED)
    {
        return_ACPI_STATUS (AE_OK);
    }

    RegionObj->Common.Flags |= AOPOBJ_OBJECT_INITIALIZED;

    Node = RegionObj->Region.Node->Parent;
    SpaceId = RegionObj->Region.SpaceId;

    /*
     * The following loop depends upon the root Node having no parent
     * ie: AcpiGbl_RootNode->Parent being set to NULL
     */
    while (Node)
    {
        /* Check to see if a handler exists */

        HandlerObj = NULL;
        ObjDesc = AcpiNsGetAttachedObject (Node);
        if (ObjDesc)
        {
            /* Can only be a handler if the object exists */

            switch (Node->Type)
            {
            case ACPI_TYPE_DEVICE:
            case ACPI_TYPE_PROCESSOR:
            case ACPI_TYPE_THERMAL:

                HandlerObj = ObjDesc->CommonNotify.Handler;
                break;

            case ACPI_TYPE_METHOD:
                /*
                 * If we are executing module level code, the original
                 * Node's object was replaced by this Method object and we
                 * saved the handler in the method object.
                 *
                 * See AcpiNsExecModuleCode
                 */
                if (ObjDesc->Method.InfoFlags & ACPI_METHOD_MODULE_LEVEL)
                {
                    HandlerObj = ObjDesc->Method.Dispatch.Handler;
                }
                break;

            default:

                /* Ignore other objects */

                break;
            }

            HandlerObj = AcpiEvFindRegionHandler (SpaceId, HandlerObj);
            if (HandlerObj)
            {
                /* Found correct handler */

                ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                    "Found handler %p for region %p in obj %p\n",
                    HandlerObj, RegionObj, ObjDesc));

                Status = AcpiEvAttachRegion (HandlerObj, RegionObj,
                    AcpiNsLocked);

                /*
                 * Tell all users that this region is usable by
                 * running the _REG method
                 */
                if (AcpiNsLocked)
                {
                    Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
                    if (ACPI_FAILURE (Status))
                    {
                        return_ACPI_STATUS (Status);
                    }
                }

                Status = AcpiEvExecuteRegMethod (RegionObj, ACPI_REG_CONNECT);

                if (AcpiNsLocked)
                {
                    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
                    if (ACPI_FAILURE (Status))
                    {
                        return_ACPI_STATUS (Status);
                    }
                }

                return_ACPI_STATUS (AE_OK);
            }
        }

        /* This node does not have the handler we need; Pop up one level */

        Node = Node->Parent;
    }

    /* If we get here, there is no handler for this region */

    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
        "No handler for RegionType %s(%X) (RegionObj %p)\n",
        AcpiUtGetRegionName (SpaceId), SpaceId, RegionObj));

    return_ACPI_STATUS (AE_NOT_EXIST);
}
Exemplo n.º 23
0
void
AcpiDbDisplayHandlers (
    void)
{
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_ADR_SPACE_TYPE     SpaceId;
    UINT32                  i;


    /* Operation region handlers */

    AcpiOsPrintf ("\nOperation Region Handlers:\n");

    ObjDesc = AcpiNsGetAttachedObject (AcpiGbl_RootNode);
    if (ObjDesc)
    {
        for (i = 0; i < ACPI_ARRAY_LENGTH (AcpiGbl_SpaceIdList); i++)
        {
            SpaceId = AcpiGbl_SpaceIdList[i];
            HandlerObj = ObjDesc->Device.Handler;

            AcpiOsPrintf (ACPI_PREDEFINED_PREFIX,
                AcpiUtGetRegionName ((UINT8) SpaceId), SpaceId);

            while (HandlerObj)
            {
                if (i == HandlerObj->AddressSpace.SpaceId)
                {
                    AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING,
                        (HandlerObj->AddressSpace.HandlerFlags &
                            ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ? "Default" : "User",
                        HandlerObj->AddressSpace.Handler);
                    goto FoundHandler;
                }

                HandlerObj = HandlerObj->AddressSpace.Next;
            }

            /* There is no handler for this SpaceId */

            AcpiOsPrintf ("None\n");

        FoundHandler:;
        }
    }

    /* Fixed event handlers */

    AcpiOsPrintf ("\nFixed Event Handlers:\n");

    for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
    {
        AcpiOsPrintf (ACPI_PREDEFINED_PREFIX, AcpiUtGetEventName (i), i);
        if (AcpiGbl_FixedEventHandlers[i].Handler)
        {
            AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING, "User",
                AcpiGbl_FixedEventHandlers[i].Handler);
        }
        else
        {
            AcpiOsPrintf (ACPI_HANDLER_NOT_PRESENT_STRING, "None");
        }
    }

    /* Miscellaneous global handlers */

    AcpiOsPrintf ("\nMiscellaneous Global Handlers:\n");

    for (i = 0; i < ACPI_ARRAY_LENGTH (AcpiGbl_HandlerList); i++)
    {
        AcpiOsPrintf (ACPI_HANDLER_NAME_STRING, AcpiGbl_HandlerList[i].Name);
        if (AcpiGbl_HandlerList[i].Handler)
        {
            AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING, "User",
                AcpiGbl_HandlerList[i].Handler);
        }
        else
        {
            AcpiOsPrintf (ACPI_HANDLER_NOT_PRESENT_STRING, "None");
        }
    }
}
Exemplo n.º 24
0
void
AcpiEvDetachRegion(
    ACPI_OPERAND_OBJECT     *RegionObj,
    BOOLEAN                 AcpiNsIsLocked)
{
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     *StartDesc;
    ACPI_OPERAND_OBJECT     **LastObjPtr;
    ACPI_ADR_SPACE_SETUP    RegionSetup;
    void                    **RegionContext;
    ACPI_OPERAND_OBJECT     *RegionObj2;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE (EvDetachRegion);


    RegionObj2 = AcpiNsGetSecondaryObject (RegionObj);
    if (!RegionObj2)
    {
        return_VOID;
    }
    RegionContext = &RegionObj2->Extra.RegionContext;

    /* Get the address handler from the region object */

    HandlerObj = RegionObj->Region.Handler;
    if (!HandlerObj)
    {
        /* This region has no handler, all done */

        return_VOID;
    }

    /* Find this region in the handler's list */

    ObjDesc = HandlerObj->AddressSpace.RegionList;
    StartDesc = ObjDesc;
    LastObjPtr = &HandlerObj->AddressSpace.RegionList;

    while (ObjDesc)
    {
        /* Is this the correct Region? */

        if (ObjDesc == RegionObj)
        {
            ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                "Removing Region %p from address handler %p\n",
                RegionObj, HandlerObj));

            /* This is it, remove it from the handler's list */

            *LastObjPtr = ObjDesc->Region.Next;
            ObjDesc->Region.Next = NULL;        /* Must clear field */

            if (AcpiNsIsLocked)
            {
                Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
                if (ACPI_FAILURE (Status))
                {
                    return_VOID;
                }
            }

            /* Now stop region accesses by executing the _REG method */

            Status = AcpiEvExecuteRegMethod (RegionObj, ACPI_REG_DISCONNECT);
            if (ACPI_FAILURE (Status))
            {
                ACPI_EXCEPTION ((AE_INFO, Status, "from region _REG, [%s]",
                    AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
            }

            if (AcpiNsIsLocked)
            {
                Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
                if (ACPI_FAILURE (Status))
                {
                    return_VOID;
                }
            }

            /*
             * If the region has been activated, call the setup handler with
             * the deactivate notification
             */
            if (RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE)
            {
                RegionSetup = HandlerObj->AddressSpace.Setup;
                Status = RegionSetup (RegionObj, ACPI_REGION_DEACTIVATE,
                    HandlerObj->AddressSpace.Context, RegionContext);

                /*
                 * RegionContext should have been released by the deactivate
                 * operation. We don't need access to it anymore here.
                 */
                if (RegionContext)
                {
                    *RegionContext = NULL;
                }

                /* Init routine may fail, Just ignore errors */

                if (ACPI_FAILURE (Status))
                {
                    ACPI_EXCEPTION ((AE_INFO, Status,
                        "from region handler - deactivate, [%s]",
                        AcpiUtGetRegionName (RegionObj->Region.SpaceId)));
                }

                RegionObj->Region.Flags &= ~(AOPOBJ_SETUP_COMPLETE);
            }

            /*
             * Remove handler reference in the region
             *
             * NOTE: this doesn't mean that the region goes away, the region
             * is just inaccessible as indicated to the _REG method
             *
             * If the region is on the handler's list, this must be the
             * region's handler
             */
            RegionObj->Region.Handler = NULL;
            AcpiUtRemoveReference (HandlerObj);

            return_VOID;
        }

        /* Walk the linked list of handlers */

        LastObjPtr = &ObjDesc->Region.Next;
        ObjDesc = ObjDesc->Region.Next;

        /* Prevent infinite loop if list is corrupted */

        if (ObjDesc == StartDesc)
        {
            ACPI_ERROR ((AE_INFO,
                "Circular handler list in region object %p",
                RegionObj));
            return_VOID;
        }
    }

    /* If we get here, the region was not in the handler's region list */

    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
        "Cannot remove region %p from address handler %p\n",
        RegionObj, HandlerObj));

    return_VOID;
}
Exemplo n.º 25
0
UINT32
AcpiUtCheckAddressRange (
    ACPI_ADR_SPACE_TYPE     SpaceId,
    ACPI_PHYSICAL_ADDRESS   Address,
    UINT32                  Length,
    BOOLEAN                 Warn)
{
    ACPI_ADDRESS_RANGE      *RangeInfo;
    ACPI_PHYSICAL_ADDRESS   EndAddress;
    char                    *Pathname;
    UINT32                  OverlapCount = 0;


    ACPI_FUNCTION_TRACE (UtCheckAddressRange);


    if ((SpaceId != ACPI_ADR_SPACE_SYSTEM_MEMORY) &&
        (SpaceId != ACPI_ADR_SPACE_SYSTEM_IO))
    {
        return_UINT32 (0);
    }

    RangeInfo = AcpiGbl_AddressRangeList[SpaceId];
    EndAddress = Address + Length - 1;

    /* Check entire list for all possible conflicts */

    while (RangeInfo)
    {
        /*
         * Check if the requested address/length overlaps this
         * address range. There are four cases to consider:
         *
         * 1) Input address/length is contained completely in the
         *    address range
         * 2) Input address/length overlaps range at the range start
         * 3) Input address/length overlaps range at the range end
         * 4) Input address/length completely encompasses the range
         */
        if ((Address <= RangeInfo->EndAddress) &&
            (EndAddress >= RangeInfo->StartAddress))
        {
            /* Found an address range overlap */

            OverlapCount++;
            if (Warn)   /* Optional warning message */
            {
                Pathname = AcpiNsGetNormalizedPathname (RangeInfo->RegionNode, TRUE);

                ACPI_WARNING ((AE_INFO,
                    "%s range 0x%8.8X%8.8X-0x%8.8X%8.8X conflicts with OpRegion 0x%8.8X%8.8X-0x%8.8X%8.8X (%s)",
                    AcpiUtGetRegionName (SpaceId),
                    ACPI_FORMAT_UINT64 (Address),
                    ACPI_FORMAT_UINT64 (EndAddress),
                    ACPI_FORMAT_UINT64 (RangeInfo->StartAddress),
                    ACPI_FORMAT_UINT64 (RangeInfo->EndAddress),
                    Pathname));
                ACPI_FREE (Pathname);
            }
        }

        RangeInfo = RangeInfo->Next;
    }

    return_UINT32 (OverlapCount);
}
Exemplo n.º 26
0
void
AcpiDbDisplayHandlers (
    void)
{
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_ADR_SPACE_TYPE     SpaceId;
    UINT32                  i;


    /* Operation region handlers */

    AcpiOsPrintf ("\nOperation Region Handlers at the namespace root:\n");

    ObjDesc = AcpiNsGetAttachedObject (AcpiGbl_RootNode);
    if (ObjDesc)
    {
        for (i = 0; i < ACPI_ARRAY_LENGTH (AcpiGbl_SpaceIdList); i++)
        {
            SpaceId = AcpiGbl_SpaceIdList[i];
            HandlerObj = ObjDesc->Device.Handler;

            AcpiOsPrintf (ACPI_PREDEFINED_PREFIX,
                AcpiUtGetRegionName ((UINT8) SpaceId), SpaceId);

            while (HandlerObj)
            {
                if (AcpiGbl_SpaceIdList[i] ==
                    HandlerObj->AddressSpace.SpaceId)
                {
                    AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING,
                        (HandlerObj->AddressSpace.HandlerFlags &
                            ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ?
                            "Default" : "User",
                        HandlerObj->AddressSpace.Handler);

                    goto FoundHandler;
                }

                HandlerObj = HandlerObj->AddressSpace.Next;
            }

            /* There is no handler for this SpaceId */

            AcpiOsPrintf ("None\n");

        FoundHandler:;
        }

        /* Find all handlers for user-defined SpaceIDs */

        HandlerObj = ObjDesc->Device.Handler;
        while (HandlerObj)
        {
            if (HandlerObj->AddressSpace.SpaceId >= ACPI_USER_REGION_BEGIN)
            {
                AcpiOsPrintf (ACPI_PREDEFINED_PREFIX,
                    "User-defined ID", HandlerObj->AddressSpace.SpaceId);
                AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING,
                    (HandlerObj->AddressSpace.HandlerFlags &
                        ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ?
                        "Default" : "User",
                    HandlerObj->AddressSpace.Handler);
            }

            HandlerObj = HandlerObj->AddressSpace.Next;
        }
    }

#if (!ACPI_REDUCED_HARDWARE)

    /* Fixed event handlers */

    AcpiOsPrintf ("\nFixed Event Handlers:\n");

    for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
    {
        AcpiOsPrintf (ACPI_PREDEFINED_PREFIX, AcpiUtGetEventName (i), i);
        if (AcpiGbl_FixedEventHandlers[i].Handler)
        {
            AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING, "User",
                AcpiGbl_FixedEventHandlers[i].Handler);
        }
        else
        {
            AcpiOsPrintf (ACPI_HANDLER_NOT_PRESENT_STRING, "None");
        }
    }

#endif /* !ACPI_REDUCED_HARDWARE */

    /* Miscellaneous global handlers */

    AcpiOsPrintf ("\nMiscellaneous Global Handlers:\n");

    for (i = 0; i < ACPI_ARRAY_LENGTH (AcpiGbl_HandlerList); i++)
    {
        AcpiOsPrintf (ACPI_HANDLER_NAME_STRING,
            AcpiGbl_HandlerList[i].Name);

        if (AcpiGbl_HandlerList[i].Handler)
        {
            AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING, "User",
                AcpiGbl_HandlerList[i].Handler);
        }
        else
        {
            AcpiOsPrintf (ACPI_HANDLER_NOT_PRESENT_STRING, "None");
        }
    }


    /* Other handlers that are installed throughout the namespace */

    AcpiOsPrintf ("\nOperation Region Handlers for specific devices:\n");

    (void) AcpiWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
        ACPI_UINT32_MAX, AcpiDbDisplayNonRootHandlers,
        NULL, NULL, NULL);
}
Exemplo n.º 27
0
ACPI_STATUS
AcpiEvInitializeRegion (
    ACPI_OPERAND_OBJECT     *RegionObj)
{
    ACPI_OPERAND_OBJECT     *HandlerObj;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_ADR_SPACE_TYPE     SpaceId;
    ACPI_NAMESPACE_NODE     *Node;


    ACPI_FUNCTION_TRACE (EvInitializeRegion);


    if (!RegionObj)
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    if (RegionObj->Common.Flags & AOPOBJ_OBJECT_INITIALIZED)
    {
        return_ACPI_STATUS (AE_OK);
    }

    RegionObj->Common.Flags |= AOPOBJ_OBJECT_INITIALIZED;

    Node = RegionObj->Region.Node->Parent;
    SpaceId = RegionObj->Region.SpaceId;

    /*
     * The following loop depends upon the root Node having no parent
     * ie: AcpiGbl_RootNode->Parent being set to NULL
     */
    while (Node)
    {
        /* Check to see if a handler exists */

        HandlerObj = NULL;
        ObjDesc = AcpiNsGetAttachedObject (Node);
        if (ObjDesc)
        {
            /* Can only be a handler if the object exists */

            switch (Node->Type)
            {
            case ACPI_TYPE_DEVICE:
            case ACPI_TYPE_PROCESSOR:
            case ACPI_TYPE_THERMAL:

                HandlerObj = ObjDesc->CommonNotify.Handler;
                break;

            case ACPI_TYPE_METHOD:
                /*
                 * If we are executing module level code, the original
                 * Node's object was replaced by this Method object and we
                 * saved the handler in the method object.
                 *
                 * Note: Only used for the legacy MLC support. Will
                 * be removed in the future.
                 *
                 * See AcpiNsExecModuleCode
                 */
                if (!AcpiGbl_ExecuteTablesAsMethods &&
                    ObjDesc->Method.InfoFlags & ACPI_METHOD_MODULE_LEVEL)
                {
                    HandlerObj = ObjDesc->Method.Dispatch.Handler;
                }
                break;

            default:

                /* Ignore other objects */

                break;
            }

            HandlerObj = AcpiEvFindRegionHandler (SpaceId, HandlerObj);
            if (HandlerObj)
            {
                /* Found correct handler */

                ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
                    "Found handler %p for region %p in obj %p\n",
                    HandlerObj, RegionObj, ObjDesc));

                (void) AcpiEvAttachRegion (HandlerObj, RegionObj, FALSE);

                /*
                 * Tell all users that this region is usable by
                 * running the _REG method
                 */
                AcpiExExitInterpreter ();
                (void) AcpiEvExecuteRegMethod (RegionObj, ACPI_REG_CONNECT);
                AcpiExEnterInterpreter ();
                return_ACPI_STATUS (AE_OK);
            }
        }

        /* This node does not have the handler we need; Pop up one level */

        Node = Node->Parent;
    }

    /*
     * If we get here, there is no handler for this region. This is not
     * fatal because many regions get created before a handler is installed
     * for said region.
     */
    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
        "No handler for RegionType %s(%X) (RegionObj %p)\n",
        AcpiUtGetRegionName (SpaceId), SpaceId, RegionObj));

    return_ACPI_STATUS (AE_OK);
}