1 /*******************************************************************************
3 * Module Name: rsutils - Utilities for the resource manager
6 ******************************************************************************/
8 /******************************************************************************
12 * Some or all of this work - Copyright (c) 1999 - 2003, 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 *****************************************************************************/
118 #define __RSUTILS_C__
121 #include "acnamesp.h"
125 #define _COMPONENT ACPI_RESOURCES
126 ACPI_MODULE_NAME ("rsutils")
129 /*******************************************************************************
131 * FUNCTION: AcpiRsGetPrtMethodData
133 * PARAMETERS: Handle - a handle to the containing object
134 * RetBuffer - a pointer to a buffer structure for the
139 * DESCRIPTION: This function is called to get the _PRT value of an object
140 * contained in an object specified by the handle passed in
142 * If the function fails an appropriate status will be returned
143 * and the contents of the callers buffer is undefined.
145 ******************************************************************************/
148 AcpiRsGetPrtMethodData (
150 ACPI_BUFFER *RetBuffer)
152 ACPI_OPERAND_OBJECT *ObjDesc;
156 ACPI_FUNCTION_TRACE ("RsGetPrtMethodData");
159 /* Parameters guaranteed valid by caller */
162 * Execute the method, no parameters
164 Status = AcpiUtEvaluateObject (Handle, "_PRT", ACPI_BTYPE_PACKAGE, &ObjDesc);
165 if (ACPI_FAILURE (Status))
167 return_ACPI_STATUS (Status);
171 * Create a resource linked list from the byte stream buffer that comes
172 * back from the _CRS method execution.
174 Status = AcpiRsCreatePciRoutingTable (ObjDesc, RetBuffer);
176 /* On exit, we must delete the object returned by EvaluateObject */
178 AcpiUtRemoveReference (ObjDesc);
179 return_ACPI_STATUS (Status);
183 /*******************************************************************************
185 * FUNCTION: AcpiRsGetCrsMethodData
187 * PARAMETERS: Handle - a handle to the containing object
188 * RetBuffer - a pointer to a buffer structure for the
193 * DESCRIPTION: This function is called to get the _CRS value of an object
194 * contained in an object specified by the handle passed in
196 * If the function fails an appropriate status will be returned
197 * and the contents of the callers buffer is undefined.
199 ******************************************************************************/
202 AcpiRsGetCrsMethodData (
204 ACPI_BUFFER *RetBuffer)
206 ACPI_OPERAND_OBJECT *ObjDesc;
210 ACPI_FUNCTION_TRACE ("RsGetCrsMethodData");
213 /* Parameters guaranteed valid by caller */
216 * Execute the method, no parameters
218 Status = AcpiUtEvaluateObject (Handle, "_CRS", ACPI_BTYPE_BUFFER, &ObjDesc);
219 if (ACPI_FAILURE (Status))
221 return_ACPI_STATUS (Status);
225 * Make the call to create a resource linked list from the
226 * byte stream buffer that comes back from the _CRS method
229 Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
231 /* On exit, we must delete the object returned by evaluateObject */
233 AcpiUtRemoveReference (ObjDesc);
234 return_ACPI_STATUS (Status);
238 /*******************************************************************************
240 * FUNCTION: AcpiRsGetPrsMethodData
242 * PARAMETERS: Handle - a handle to the containing object
243 * RetBuffer - a pointer to a buffer structure for the
248 * DESCRIPTION: This function is called to get the _PRS value of an object
249 * contained in an object specified by the handle passed in
251 * If the function fails an appropriate status will be returned
252 * and the contents of the callers buffer is undefined.
254 ******************************************************************************/
257 AcpiRsGetPrsMethodData (
259 ACPI_BUFFER *RetBuffer)
261 ACPI_OPERAND_OBJECT *ObjDesc;
265 ACPI_FUNCTION_TRACE ("RsGetPrsMethodData");
268 /* Parameters guaranteed valid by caller */
271 * Execute the method, no parameters
273 Status = AcpiUtEvaluateObject (Handle, "_PRS", ACPI_BTYPE_BUFFER, &ObjDesc);
274 if (ACPI_FAILURE (Status))
276 return_ACPI_STATUS (Status);
280 * Make the call to create a resource linked list from the
281 * byte stream buffer that comes back from the _CRS method
284 Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
286 /* On exit, we must delete the object returned by evaluateObject */
288 AcpiUtRemoveReference (ObjDesc);
289 return_ACPI_STATUS (Status);
293 /*******************************************************************************
295 * FUNCTION: AcpiRsGetMethodData
297 * PARAMETERS: Handle - a handle to the containing object
298 * RetBuffer - a pointer to a buffer structure for the
303 * DESCRIPTION: This function is called to get the _CRS or _PRS value of an
304 * object contained in an object specified by the handle passed in
306 * If the function fails an appropriate status will be returned
307 * and the contents of the callers buffer is undefined.
309 ******************************************************************************/
312 AcpiRsGetMethodData (
315 ACPI_BUFFER *RetBuffer)
317 ACPI_OPERAND_OBJECT *ObjDesc;
321 ACPI_FUNCTION_TRACE ("RsGetMethodData");
324 /* Parameters guaranteed valid by caller */
327 * Execute the method, no parameters
329 Status = AcpiUtEvaluateObject (Handle, Path, ACPI_BTYPE_BUFFER, &ObjDesc);
330 if (ACPI_FAILURE (Status)) {
331 return_ACPI_STATUS (Status);
335 * Make the call to create a resource linked list from the
336 * byte stream buffer that comes back from the method
339 Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
341 /* On exit, we must delete the object returned by EvaluateObject */
343 AcpiUtRemoveReference (ObjDesc);
344 return_ACPI_STATUS (Status);
347 /*******************************************************************************
349 * FUNCTION: AcpiRsSetSrsMethodData
351 * PARAMETERS: Handle - a handle to the containing object
352 * InBuffer - a pointer to a buffer structure of the
357 * DESCRIPTION: This function is called to set the _SRS of an object contained
358 * in an object specified by the handle passed in
360 * If the function fails an appropriate status will be returned
361 * and the contents of the callers buffer is undefined.
363 ******************************************************************************/
366 AcpiRsSetSrsMethodData (
368 ACPI_BUFFER *InBuffer)
370 ACPI_OPERAND_OBJECT *Params[2];
375 ACPI_FUNCTION_TRACE ("RsSetSrsMethodData");
378 /* Parameters guaranteed valid by caller */
381 * The InBuffer parameter will point to a linked list of
382 * resource parameters. It needs to be formatted into a
383 * byte stream to be sent in as an input parameter to _SRS
385 * Convert the linked list into a byte stream
387 Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
388 Status = AcpiRsCreateByteStream (InBuffer->Pointer, &Buffer);
389 if (ACPI_FAILURE (Status))
391 return_ACPI_STATUS (Status);
395 * Init the param object
397 Params[0] = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER);
400 AcpiOsFree (Buffer.Pointer);
401 return_ACPI_STATUS (AE_NO_MEMORY);
405 * Set up the parameter object
407 Params[0]->Buffer.Length = (UINT32) Buffer.Length;
408 Params[0]->Buffer.Pointer = Buffer.Pointer;
409 Params[0]->Common.Flags = AOPOBJ_DATA_VALID;
413 * Execute the method, no return value
415 Status = AcpiNsEvaluateRelative (Handle, "_SRS", Params, NULL);
418 * Clean up and return the status from AcpiNsEvaluateRelative
420 AcpiUtRemoveReference (Params[0]);
421 return_ACPI_STATUS (Status);