--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rsxface - Public interfaces to the resource manager
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
+ * All rights reserved.
+ *
+ * 2. License
+ *
+ * 2.1. This is your license from Intel Corp. under its intellectual property
+ * rights. You may have additional license terms from the party that provided
+ * you this software, covering your right to use that party's intellectual
+ * property rights.
+ *
+ * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
+ * copy of the source code appearing in this file ("Covered Code") an
+ * irrevocable, perpetual, worldwide license under Intel's copyrights in the
+ * base code distributed originally by Intel ("Original Intel Code") to copy,
+ * make derivatives, distribute, use and display any portion of the Covered
+ * Code in any form, with the right to sublicense such rights; and
+ *
+ * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
+ * license (with the right to sublicense), under only those claims of Intel
+ * patents that are infringed by the Original Intel Code, to make, use, sell,
+ * offer to sell, and import the Covered Code and derivative works thereof
+ * solely to the minimum extent necessary to exercise the above copyright
+ * license, and in no event shall the patent license extend to any additions
+ * to or modifications of the Original Intel Code. No other license or right
+ * is granted directly or by implication, estoppel or otherwise;
+ *
+ * The above copyright and patent license is granted only if the following
+ * conditions are met:
+ *
+ * 3. Conditions
+ *
+ * 3.1. Redistribution of Source with Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification with rights to further distribute source must include
+ * the above Copyright Notice, the above License, this list of Conditions,
+ * and the following Disclaimer and Export Compliance provision. In addition,
+ * Licensee must cause all Covered Code to which Licensee contributes to
+ * contain a file documenting the changes Licensee made to create that Covered
+ * Code and the date of any change. Licensee must include in that file the
+ * documentation of any changes made by any predecessor Licensee. Licensee
+ * must include a prominent statement that the modification is derived,
+ * directly or indirectly, from Original Intel Code.
+ *
+ * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification without rights to further distribute source must
+ * include the following Disclaimer and Export Compliance provision in the
+ * documentation and/or other materials provided with distribution. In
+ * addition, Licensee may not authorize further sublicense of source of any
+ * portion of the Covered Code, and must include terms to the effect that the
+ * license from Licensee to its licensee is limited to the intellectual
+ * property embodied in the software Licensee provides to its licensee, and
+ * not to intellectual property embodied in modifications its licensee may
+ * make.
+ *
+ * 3.3. Redistribution of Executable. Redistribution in executable form of any
+ * substantial portion of the Covered Code or modification must reproduce the
+ * above Copyright Notice, and the following Disclaimer and Export Compliance
+ * provision in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3.4. Intel retains all right, title, and interest in and to the Original
+ * Intel Code.
+ *
+ * 3.5. Neither the name Intel nor any other trademark owned or controlled by
+ * Intel shall be used in advertising or otherwise to promote the sale, use or
+ * other dealings in products derived from or relating to the Covered Code
+ * without prior written authorization from Intel.
+ *
+ * 4. Disclaimer and Export Compliance
+ *
+ * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
+ * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
+ * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
+ * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
+ * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
+ * PARTICULAR PURPOSE.
+ *
+ * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
+ * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
+ * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
+ * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
+ * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
+ * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
+ * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
+ * LIMITED REMEDY.
+ *
+ * 4.3. Licensee shall not export, either directly or indirectly, any of this
+ * software or system incorporating such software without first obtaining any
+ * required license or other approval from the U. S. Department of Commerce or
+ * any other agency or department of the United States Government. In the
+ * event Licensee exports any such software from the United States or
+ * re-exports any such software from a foreign destination, Licensee shall
+ * ensure that the distribution and export/re-export of the software is in
+ * compliance with all laws, regulations, orders, or other restrictions of the
+ * U.S. Export Administration Regulations. Licensee agrees that neither it nor
+ * any of its subsidiaries will export/re-export any technical data, process,
+ * software, or service, directly or indirectly, to any country for which the
+ * United States government or any agency thereof requires an export license,
+ * other governmental approval, or letter of assurance, without first obtaining
+ * such license, approval or letter.
+ *
+ *****************************************************************************/
+
+
+#define __RSXFACE_C__
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acresrc.h"
+#include "acnamesp.h"
+
+#define _COMPONENT ACPI_RESOURCES
+ ACPI_MODULE_NAME ("rsxface")
+
+/* Local macros for 16,32-bit to 64-bit conversion */
+
+#define ACPI_COPY_FIELD(Out, In, Field) ((Out)->Field = (In)->Field)
+#define ACPI_COPY_ADDRESS(Out, In) \
+ ACPI_COPY_FIELD(Out, In, ResourceType); \
+ ACPI_COPY_FIELD(Out, In, ProducerConsumer); \
+ ACPI_COPY_FIELD(Out, In, Decode); \
+ ACPI_COPY_FIELD(Out, In, MinAddressFixed); \
+ ACPI_COPY_FIELD(Out, In, MaxAddressFixed); \
+ ACPI_COPY_FIELD(Out, In, Info); \
+ ACPI_COPY_FIELD(Out, In, Granularity); \
+ ACPI_COPY_FIELD(Out, In, Minimum); \
+ ACPI_COPY_FIELD(Out, In, Maximum); \
+ ACPI_COPY_FIELD(Out, In, TranslationOffset); \
+ ACPI_COPY_FIELD(Out, In, AddressLength); \
+ ACPI_COPY_FIELD(Out, In, ResourceSource);
+
+
+/* Local prototypes */
+
+static ACPI_STATUS
+AcpiRsMatchVendorResource (
+ ACPI_RESOURCE *Resource,
+ void *Context);
+
+static ACPI_STATUS
+AcpiRsValidateParameters (
+ ACPI_HANDLE DeviceHandle,
+ ACPI_BUFFER *Buffer,
+ ACPI_NAMESPACE_NODE **ReturnNode);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiRsValidateParameters
+ *
+ * PARAMETERS: DeviceHandle - Handle to a device
+ * Buffer - Pointer to a data buffer
+ * ReturnNode - Pointer to where the device node is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Common parameter validation for resource interfaces
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+AcpiRsValidateParameters (
+ ACPI_HANDLE DeviceHandle,
+ ACPI_BUFFER *Buffer,
+ ACPI_NAMESPACE_NODE **ReturnNode)
+{
+ ACPI_STATUS Status;
+ ACPI_NAMESPACE_NODE *Node;
+
+
+ ACPI_FUNCTION_TRACE (RsValidateParameters);
+
+
+ /*
+ * Must have a valid handle to an ACPI device
+ */
+ if (!DeviceHandle)
+ {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ Node = AcpiNsValidateHandle (DeviceHandle);
+ if (!Node)
+ {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ if (Node->Type != ACPI_TYPE_DEVICE)
+ {
+ return_ACPI_STATUS (AE_TYPE);
+ }
+
+ /*
+ * Validate the user buffer object
+ *
+ * if there is a non-zero buffer length we also need a valid pointer in
+ * the buffer. If it's a zero buffer length, we'll be returning the
+ * needed buffer size (later), so keep going.
+ */
+ Status = AcpiUtValidateBuffer (Buffer);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ *ReturnNode = Node;
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiGetIrqRoutingTable
+ *
+ * PARAMETERS: DeviceHandle - Handle to the Bus device we are querying
+ * RetBuffer - Pointer to a buffer to receive the
+ * current resources for the device
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get the IRQ routing table for a
+ * specific bus. The caller must first acquire a handle for the
+ * desired bus. The routine table is placed in the buffer pointed
+ * to by the RetBuffer variable parameter.
+ *
+ * If the function fails an appropriate status will be returned
+ * and the value of RetBuffer is undefined.
+ *
+ * This function attempts to execute the _PRT method contained in
+ * the object indicated by the passed DeviceHandle.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiGetIrqRoutingTable (
+ ACPI_HANDLE DeviceHandle,
+ ACPI_BUFFER *RetBuffer)
+{
+ ACPI_STATUS Status;
+ ACPI_NAMESPACE_NODE *Node;
+
+
+ ACPI_FUNCTION_TRACE (AcpiGetIrqRoutingTable);
+
+
+ /* Validate parameters then dispatch to internal routine */
+
+ Status = AcpiRsValidateParameters (DeviceHandle, RetBuffer, &Node);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ Status = AcpiRsGetPrtMethodData (Node, RetBuffer);
+ return_ACPI_STATUS (Status);
+}
+
+ACPI_EXPORT_SYMBOL (AcpiGetIrqRoutingTable)
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiGetCurrentResources
+ *
+ * PARAMETERS: DeviceHandle - Handle to the device object for the
+ * device we are querying
+ * RetBuffer - Pointer to a buffer to receive the
+ * current resources for the device
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get the current resources for a
+ * specific device. The caller must first acquire a handle for
+ * the desired device. The resource data is placed in the buffer
+ * pointed to by the RetBuffer variable parameter.
+ *
+ * If the function fails an appropriate status will be returned
+ * and the value of RetBuffer is undefined.
+ *
+ * This function attempts to execute the _CRS method contained in
+ * the object indicated by the passed DeviceHandle.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiGetCurrentResources (
+ ACPI_HANDLE DeviceHandle,
+ ACPI_BUFFER *RetBuffer)
+{
+ ACPI_STATUS Status;
+ ACPI_NAMESPACE_NODE *Node;
+
+
+ ACPI_FUNCTION_TRACE (AcpiGetCurrentResources);
+
+
+ /* Validate parameters then dispatch to internal routine */
+
+ Status = AcpiRsValidateParameters (DeviceHandle, RetBuffer, &Node);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ Status = AcpiRsGetCrsMethodData (Node, RetBuffer);
+ return_ACPI_STATUS (Status);
+}
+
+ACPI_EXPORT_SYMBOL (AcpiGetCurrentResources)
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiGetPossibleResources
+ *
+ * PARAMETERS: DeviceHandle - Handle to the device object for the
+ * device we are querying
+ * RetBuffer - Pointer to a buffer to receive the
+ * resources for the device
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get a list of the possible resources
+ * for a specific device. The caller must first acquire a handle
+ * for the desired device. The resource data is placed in the
+ * buffer pointed to by the RetBuffer variable.
+ *
+ * If the function fails an appropriate status will be returned
+ * and the value of RetBuffer is undefined.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiGetPossibleResources (
+ ACPI_HANDLE DeviceHandle,
+ ACPI_BUFFER *RetBuffer)
+{
+ ACPI_STATUS Status;
+ ACPI_NAMESPACE_NODE *Node;
+
+
+ ACPI_FUNCTION_TRACE (AcpiGetPossibleResources);
+
+
+ /* Validate parameters then dispatch to internal routine */
+
+ Status = AcpiRsValidateParameters (DeviceHandle, RetBuffer, &Node);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ Status = AcpiRsGetPrsMethodData (Node, RetBuffer);
+ return_ACPI_STATUS (Status);
+}
+
+ACPI_EXPORT_SYMBOL (AcpiGetPossibleResources)
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiSetCurrentResources
+ *
+ * PARAMETERS: DeviceHandle - Handle to the device object for the
+ * device we are setting resources
+ * InBuffer - Pointer to a buffer containing the
+ * resources to be set for the device
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to set the current resources for a
+ * specific device. The caller must first acquire a handle for
+ * the desired device. The resource data is passed to the routine
+ * the buffer pointed to by the InBuffer variable.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiSetCurrentResources (
+ ACPI_HANDLE DeviceHandle,
+ ACPI_BUFFER *InBuffer)
+{
+ ACPI_STATUS Status;
+ ACPI_NAMESPACE_NODE *Node;
+
+
+ ACPI_FUNCTION_TRACE (AcpiSetCurrentResources);
+
+
+ /* Validate the buffer, don't allow zero length */
+
+ if ((!InBuffer) ||
+ (!InBuffer->Pointer) ||
+ (!InBuffer->Length))
+ {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ /* Validate parameters then dispatch to internal routine */
+
+ Status = AcpiRsValidateParameters (DeviceHandle, InBuffer, &Node);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ Status = AcpiRsSetSrsMethodData (Node, InBuffer);
+ return_ACPI_STATUS (Status);
+}
+
+ACPI_EXPORT_SYMBOL (AcpiSetCurrentResources)
+
+
+/******************************************************************************
+ *
+ * FUNCTION: AcpiResourceToAddress64
+ *
+ * PARAMETERS: Resource - Pointer to a resource
+ * Out - Pointer to the users's return buffer
+ * (a struct acpi_resource_address64)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: If the resource is an address16, address32, or address64,
+ * copy it to the address64 return buffer. This saves the
+ * caller from having to duplicate code for different-sized
+ * addresses.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiResourceToAddress64 (
+ ACPI_RESOURCE *Resource,
+ ACPI_RESOURCE_ADDRESS64 *Out)
+{
+ ACPI_RESOURCE_ADDRESS16 *Address16;
+ ACPI_RESOURCE_ADDRESS32 *Address32;
+
+
+ if (!Resource || !Out)
+ {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Convert 16 or 32 address descriptor to 64 */
+
+ switch (Resource->Type)
+ {
+ case ACPI_RESOURCE_TYPE_ADDRESS16:
+
+ Address16 = ACPI_CAST_PTR (ACPI_RESOURCE_ADDRESS16, &Resource->Data);
+ ACPI_COPY_ADDRESS (Out, Address16);
+ break;
+
+ case ACPI_RESOURCE_TYPE_ADDRESS32:
+
+ Address32 = ACPI_CAST_PTR (ACPI_RESOURCE_ADDRESS32, &Resource->Data);
+ ACPI_COPY_ADDRESS (Out, Address32);
+ break;
+
+ case ACPI_RESOURCE_TYPE_ADDRESS64:
+
+ /* Simple copy for 64 bit source */
+
+ ACPI_MEMCPY (Out, &Resource->Data, sizeof (ACPI_RESOURCE_ADDRESS64));
+ break;
+
+ default:
+ return (AE_BAD_PARAMETER);
+ }
+
+ return (AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL (AcpiResourceToAddress64)
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiGetVendorResource
+ *
+ * PARAMETERS: DeviceHandle - Handle for the parent device object
+ * Name - Method name for the parent resource
+ * (METHOD_NAME__CRS or METHOD_NAME__PRS)
+ * Uuid - Pointer to the UUID to be matched.
+ * includes both subtype and 16-byte UUID
+ * RetBuffer - Where the vendor resource is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Walk a resource template for the specified evice to find a
+ * vendor-defined resource that matches the supplied UUID and
+ * UUID subtype. Returns a ACPI_RESOURCE of type Vendor.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiGetVendorResource (
+ ACPI_HANDLE DeviceHandle,
+ char *Name,
+ ACPI_VENDOR_UUID *Uuid,
+ ACPI_BUFFER *RetBuffer)
+{
+ ACPI_VENDOR_WALK_INFO Info;
+ ACPI_STATUS Status;
+
+
+ /* Other parameters are validated by AcpiWalkResources */
+
+ if (!Uuid || !RetBuffer)
+ {
+ return (AE_BAD_PARAMETER);
+ }
+
+ Info.Uuid = Uuid;
+ Info.Buffer = RetBuffer;
+ Info.Status = AE_NOT_EXIST;
+
+ /* Walk the _CRS or _PRS resource list for this device */
+
+ Status = AcpiWalkResources (DeviceHandle, Name, AcpiRsMatchVendorResource,
+ &Info);
+ if (ACPI_FAILURE (Status))
+ {
+ return (Status);
+ }
+
+ return (Info.Status);
+}
+
+ACPI_EXPORT_SYMBOL (AcpiGetVendorResource)
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiRsMatchVendorResource
+ *
+ * PARAMETERS: ACPI_WALK_RESOURCE_CALLBACK
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Match a vendor resource via the ACPI 3.0 UUID
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+AcpiRsMatchVendorResource (
+ ACPI_RESOURCE *Resource,
+ void *Context)
+{
+ ACPI_VENDOR_WALK_INFO *Info = Context;
+ ACPI_RESOURCE_VENDOR_TYPED *Vendor;
+ ACPI_BUFFER *Buffer;
+ ACPI_STATUS Status;
+
+
+ /* Ignore all descriptors except Vendor */
+
+ if (Resource->Type != ACPI_RESOURCE_TYPE_VENDOR)
+ {
+ return (AE_OK);
+ }
+
+ Vendor = &Resource->Data.VendorTyped;
+
+ /*
+ * For a valid match, these conditions must hold:
+ *
+ * 1) Length of descriptor data must be at least as long as a UUID struct
+ * 2) The UUID subtypes must match
+ * 3) The UUID data must match
+ */
+ if ((Vendor->ByteLength < (ACPI_UUID_LENGTH + 1)) ||
+ (Vendor->UuidSubtype != Info->Uuid->Subtype) ||
+ (ACPI_MEMCMP (Vendor->Uuid, Info->Uuid->Data, ACPI_UUID_LENGTH)))
+ {
+ return (AE_OK);
+ }
+
+ /* Validate/Allocate/Clear caller buffer */
+
+ Buffer = Info->Buffer;
+ Status = AcpiUtInitializeBuffer (Buffer, Resource->Length);
+ if (ACPI_FAILURE (Status))
+ {
+ return (Status);
+ }
+
+ /* Found the correct resource, copy and return it */
+
+ ACPI_MEMCPY (Buffer->Pointer, Resource, Resource->Length);
+ Buffer->Length = Resource->Length;
+
+ /* Found the desired descriptor, terminate resource walk */
+
+ Info->Status = AE_OK;
+ return (AE_CTRL_TERMINATE);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiWalkResources
+ *
+ * PARAMETERS: DeviceHandle - Handle to the device object for the
+ * device we are querying
+ * Name - Method name of the resources we want
+ * (METHOD_NAME__CRS or METHOD_NAME__PRS)
+ * UserFunction - Called for each resource
+ * Context - Passed to UserFunction
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Retrieves the current or possible resource list for the
+ * specified device. The UserFunction is called once for
+ * each resource in the list.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiWalkResources (
+ ACPI_HANDLE DeviceHandle,
+ char *Name,
+ ACPI_WALK_RESOURCE_CALLBACK UserFunction,
+ void *Context)
+{
+ ACPI_STATUS Status;
+ ACPI_BUFFER Buffer;
+ ACPI_RESOURCE *Resource;
+ ACPI_RESOURCE *ResourceEnd;
+
+
+ ACPI_FUNCTION_TRACE (AcpiWalkResources);
+
+
+ /* Parameter validation */
+
+ if (!DeviceHandle || !UserFunction || !Name ||
+ (!ACPI_COMPARE_NAME (Name, METHOD_NAME__CRS) &&
+ !ACPI_COMPARE_NAME (Name, METHOD_NAME__PRS)))
+ {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ /* Get the _CRS or _PRS resource list */
+
+ Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
+ Status = AcpiRsGetMethodData (DeviceHandle, Name, &Buffer);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ /* Buffer now contains the resource list */
+
+ Resource = ACPI_CAST_PTR (ACPI_RESOURCE, Buffer.Pointer);
+ ResourceEnd = ACPI_ADD_PTR (ACPI_RESOURCE, Buffer.Pointer, Buffer.Length);
+
+ /* Walk the resource list until the EndTag is found (or buffer end) */
+
+ while (Resource < ResourceEnd)
+ {
+ /* Sanity check the resource */
+
+ if (Resource->Type > ACPI_RESOURCE_TYPE_MAX)
+ {
+ Status = AE_AML_INVALID_RESOURCE_TYPE;
+ break;
+ }
+
+ /* Invoke the user function, abort on any error returned */
+
+ Status = UserFunction (Resource, Context);
+ if (ACPI_FAILURE (Status))
+ {
+ if (Status == AE_CTRL_TERMINATE)
+ {
+ /* This is an OK termination by the user function */
+
+ Status = AE_OK;
+ }
+ break;
+ }
+
+ /* EndTag indicates end-of-list */
+
+ if (Resource->Type == ACPI_RESOURCE_TYPE_END_TAG)
+ {
+ break;
+ }
+
+ /* Get the next resource descriptor */
+
+ Resource = ACPI_ADD_PTR (ACPI_RESOURCE, Resource, Resource->Length);
+ }
+
+ ACPI_FREE (Buffer.Pointer);
+ return_ACPI_STATUS (Status);
+}
+
+ACPI_EXPORT_SYMBOL (AcpiWalkResources)
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