1 /*******************************************************************************
3 * Module Name: rslist - Linked list utilities
6 ******************************************************************************/
8 /******************************************************************************
12 * Some or all of this work - Copyright (c) 1999 - 2007, Intel Corp.
13 * All rights reserved.
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
38 * The above copyright and patent license is granted only if the following
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
73 * 3.4. Intel retains all right, title, and interest in and to the Original
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
81 * 4. Disclaimer and Export Compliance
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
115 *****************************************************************************/
119 #include <contrib/dev/acpica/acpi.h>
120 #include <contrib/dev/acpica/acresrc.h>
122 #define _COMPONENT ACPI_RESOURCES
123 ACPI_MODULE_NAME ("rslist")
126 /*******************************************************************************
128 * FUNCTION: AcpiRsConvertAmlToResources
130 * PARAMETERS: ACPI_WALK_AML_CALLBACK
131 * ResourcePtr - Pointer to the buffer that will
132 * contain the output structures
136 * DESCRIPTION: Convert an AML resource to an internal representation of the
137 * resource that is aligned and easier to access.
139 ******************************************************************************/
142 AcpiRsConvertAmlToResources (
149 ACPI_RESOURCE **ResourcePtr = ACPI_CAST_INDIRECT_PTR (
150 ACPI_RESOURCE, Context);
151 ACPI_RESOURCE *Resource;
155 ACPI_FUNCTION_TRACE (RsConvertAmlToResources);
159 * Check that the input buffer and all subsequent pointers into it
160 * are aligned on a native word boundary. Most important on IA64
162 Resource = *ResourcePtr;
163 if (ACPI_IS_MISALIGNED (Resource))
165 ACPI_WARNING ((AE_INFO,
166 "Misaligned resource pointer %p", Resource));
169 /* Convert the AML byte stream resource to a local resource struct */
171 Status = AcpiRsConvertAmlToResource (
172 Resource, ACPI_CAST_PTR (AML_RESOURCE, Aml),
173 AcpiGbl_GetResourceDispatch[ResourceIndex]);
174 if (ACPI_FAILURE (Status))
176 ACPI_EXCEPTION ((AE_INFO, Status,
177 "Could not convert AML resource (Type %X)", *Aml));
178 return_ACPI_STATUS (Status);
181 ACPI_DEBUG_PRINT ((ACPI_DB_RESOURCES,
182 "Type %.2X, AmlLength %.2X InternalLength %.2X\n",
183 AcpiUtGetResourceType (Aml), Length,
186 /* Point to the next structure in the output buffer */
188 *ResourcePtr = ACPI_ADD_PTR (void, Resource, Resource->Length);
189 return_ACPI_STATUS (AE_OK);
193 /*******************************************************************************
195 * FUNCTION: AcpiRsConvertResourcesToAml
197 * PARAMETERS: Resource - Pointer to the resource linked list
198 * AmlSizeNeeded - Calculated size of the byte stream
199 * needed from calling AcpiRsGetAmlLength()
200 * The size of the OutputBuffer is
201 * guaranteed to be >= AmlSizeNeeded
202 * OutputBuffer - Pointer to the buffer that will
203 * contain the byte stream
207 * DESCRIPTION: Takes the resource linked list and parses it, creating a
208 * byte stream of resources in the caller's output buffer
210 ******************************************************************************/
213 AcpiRsConvertResourcesToAml (
214 ACPI_RESOURCE *Resource,
215 ACPI_SIZE AmlSizeNeeded,
218 UINT8 *Aml = OutputBuffer;
219 UINT8 *EndAml = OutputBuffer + AmlSizeNeeded;
223 ACPI_FUNCTION_TRACE (RsConvertResourcesToAml);
226 /* Walk the resource descriptor list, convert each descriptor */
230 /* Validate the (internal) Resource Type */
232 if (Resource->Type > ACPI_RESOURCE_TYPE_MAX)
234 ACPI_ERROR ((AE_INFO,
235 "Invalid descriptor type (%X) in resource list",
237 return_ACPI_STATUS (AE_BAD_DATA);
240 /* Perform the conversion */
242 Status = AcpiRsConvertResourceToAml (Resource,
243 ACPI_CAST_PTR (AML_RESOURCE, Aml),
244 AcpiGbl_SetResourceDispatch[Resource->Type]);
245 if (ACPI_FAILURE (Status))
247 ACPI_EXCEPTION ((AE_INFO, Status,
248 "Could not convert resource (type %X) to AML",
250 return_ACPI_STATUS (Status);
253 /* Perform final sanity check on the new AML resource descriptor */
255 Status = AcpiUtValidateResource (
256 ACPI_CAST_PTR (AML_RESOURCE, Aml), NULL);
257 if (ACPI_FAILURE (Status))
259 return_ACPI_STATUS (Status);
262 /* Check for end-of-list, normal exit */
264 if (Resource->Type == ACPI_RESOURCE_TYPE_END_TAG)
266 /* An End Tag indicates the end of the input Resource Template */
268 return_ACPI_STATUS (AE_OK);
272 * Extract the total length of the new descriptor and set the
273 * Aml to point to the next (output) resource descriptor
275 Aml += AcpiUtGetDescriptorLength (Aml);
277 /* Point to the next input resource descriptor */
279 Resource = ACPI_ADD_PTR (ACPI_RESOURCE, Resource, Resource->Length);
282 /* Completed buffer, but did not find an EndTag resource descriptor */
284 return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);