1 /*******************************************************************************
3 * Module Name: rscreate - Create resource lists/tables
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 *****************************************************************************/
116 /* $DragonFly: src/sys/contrib/dev/acpica/Attic/rscreate.c,v 1.1 2003/09/24 03:32:16 drhodus Exp $ */
119 #define __RSCREATE_C__
124 #include "acnamesp.h"
126 #define _COMPONENT ACPI_RESOURCES
127 ACPI_MODULE_NAME ("rscreate")
130 /*******************************************************************************
132 * FUNCTION: AcpiRsCreateResourceList
134 * PARAMETERS: ByteStreamBuffer - Pointer to the resource byte stream
135 * OutputBuffer - Pointer to the user's buffer
137 * RETURN: Status - AE_OK if okay, else a valid ACPI_STATUS code
138 * If OutputBuffer is not large enough, OutputBufferLength
139 * indicates how large OutputBuffer should be, else it
140 * indicates how may UINT8 elements of OutputBuffer are valid.
142 * DESCRIPTION: Takes the byte stream returned from a _CRS, _PRS control method
143 * execution and parses the stream to create a linked list
144 * of device resources.
146 ******************************************************************************/
149 AcpiRsCreateResourceList (
150 ACPI_OPERAND_OBJECT *ByteStreamBuffer,
151 ACPI_BUFFER *OutputBuffer)
155 UINT8 *ByteStreamStart;
156 ACPI_SIZE ListSizeNeeded = 0;
157 UINT32 ByteStreamBufferLength;
160 ACPI_FUNCTION_TRACE ("RsCreateResourceList");
163 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ByteStreamBuffer = %p\n",
167 * Params already validated, so we don't re-validate here
169 ByteStreamBufferLength = ByteStreamBuffer->Buffer.Length;
170 ByteStreamStart = ByteStreamBuffer->Buffer.Pointer;
173 * Pass the ByteStreamBuffer into a module that can calculate
174 * the buffer size needed for the linked list
176 Status = AcpiRsGetListLength (ByteStreamStart, ByteStreamBufferLength,
179 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n",
180 Status, (UINT32) ListSizeNeeded));
181 if (ACPI_FAILURE (Status))
183 return_ACPI_STATUS (Status);
186 /* Validate/Allocate/Clear caller buffer */
188 Status = AcpiUtInitializeBuffer (OutputBuffer, ListSizeNeeded);
189 if (ACPI_FAILURE (Status))
191 return_ACPI_STATUS (Status);
194 /* Do the conversion */
196 Status = AcpiRsByteStreamToList (ByteStreamStart, ByteStreamBufferLength,
197 OutputBuffer->Pointer);
198 if (ACPI_FAILURE (Status))
200 return_ACPI_STATUS (Status);
203 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
204 OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
205 return_ACPI_STATUS (AE_OK);
209 /*******************************************************************************
211 * FUNCTION: AcpiRsCreatePciRoutingTable
213 * PARAMETERS: PackageObject - Pointer to an ACPI_OPERAND_OBJECT
215 * OutputBuffer - Pointer to the user's buffer
217 * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code.
218 * If the OutputBuffer is too small, the error will be
219 * AE_BUFFER_OVERFLOW and OutputBuffer->Length will point
220 * to the size buffer needed.
222 * DESCRIPTION: Takes the ACPI_OPERAND_OBJECT package and creates a
223 * linked list of PCI interrupt descriptions
225 * NOTE: It is the caller's responsibility to ensure that the start of the
226 * output buffer is aligned properly (if necessary).
228 ******************************************************************************/
231 AcpiRsCreatePciRoutingTable (
232 ACPI_OPERAND_OBJECT *PackageObject,
233 ACPI_BUFFER *OutputBuffer)
236 ACPI_OPERAND_OBJECT **TopObjectList;
237 ACPI_OPERAND_OBJECT **SubObjectList;
238 ACPI_OPERAND_OBJECT *ObjDesc;
239 ACPI_SIZE BufferSizeNeeded = 0;
240 UINT32 NumberOfElements;
242 ACPI_PCI_ROUTING_TABLE *UserPrt;
243 ACPI_NAMESPACE_NODE *Node;
245 ACPI_BUFFER PathBuffer;
248 ACPI_FUNCTION_TRACE ("RsCreatePciRoutingTable");
251 /* Params already validated, so we don't re-validate here */
254 * Get the required buffer length
256 Status = AcpiRsGetPciRoutingTableLength (PackageObject,
258 if (ACPI_FAILURE (Status))
260 return_ACPI_STATUS (Status);
263 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "BufferSizeNeeded = %X\n",
264 (UINT32) BufferSizeNeeded));
266 /* Validate/Allocate/Clear caller buffer */
268 Status = AcpiUtInitializeBuffer (OutputBuffer, BufferSizeNeeded);
269 if (ACPI_FAILURE (Status))
271 return_ACPI_STATUS (Status);
275 * Loop through the ACPI_INTERNAL_OBJECTS - Each object
276 * should be a package that in turn contains an
277 * ACPI_INTEGER Address, a UINT8 Pin, a Name and a UINT8 SourceIndex.
279 TopObjectList = PackageObject->Package.Elements;
280 NumberOfElements = PackageObject->Package.Count;
281 Buffer = OutputBuffer->Pointer;
282 UserPrt = ACPI_CAST_PTR (ACPI_PCI_ROUTING_TABLE, Buffer);
284 for (Index = 0; Index < NumberOfElements; Index++)
287 * Point UserPrt past this current structure
289 * NOTE: On the first iteration, UserPrt->Length will
290 * be zero because we cleared the return buffer earlier
292 Buffer += UserPrt->Length;
293 UserPrt = ACPI_CAST_PTR (ACPI_PCI_ROUTING_TABLE, Buffer);
296 * Fill in the Length field with the information we have at this point.
297 * The minus four is to subtract the size of the UINT8 Source[4] member
298 * because it is added below.
300 UserPrt->Length = (sizeof (ACPI_PCI_ROUTING_TABLE) - 4);
303 * Each element of the top-level package must also be a package
305 if (ACPI_GET_OBJECT_TYPE (*TopObjectList) != ACPI_TYPE_PACKAGE)
307 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
308 "(PRT[%X]) Need sub-package, found %s\n",
309 Index, AcpiUtGetObjectTypeName (*TopObjectList)));
310 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
313 /* Each sub-package must be of length 4 */
315 if ((*TopObjectList)->Package.Count != 4)
317 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
318 "(PRT[%X]) Need package of length 4, found length %d\n",
319 Index, (*TopObjectList)->Package.Count));
320 return_ACPI_STATUS (AE_AML_PACKAGE_LIMIT);
324 * Dereference the sub-package.
325 * The SubObjectList will now point to an array of the four IRQ
326 * elements: [Address, Pin, Source, SourceIndex]
328 SubObjectList = (*TopObjectList)->Package.Elements;
331 * 1) First subobject: Dereference the PRT.Address
333 ObjDesc = SubObjectList[0];
334 if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_INTEGER)
336 UserPrt->Address = ObjDesc->Integer.Value;
340 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
341 "(PRT[%X].Address) Need Integer, found %s\n",
342 Index, AcpiUtGetObjectTypeName (ObjDesc)));
343 return_ACPI_STATUS (AE_BAD_DATA);
347 * 2) Second subobject: Dereference the PRT.Pin
349 ObjDesc = SubObjectList[1];
350 if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_INTEGER)
352 UserPrt->Pin = (UINT32) ObjDesc->Integer.Value;
356 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
357 "(PRT[%X].Pin) Need Integer, found %s\n",
358 Index, AcpiUtGetObjectTypeName (ObjDesc)));
359 return_ACPI_STATUS (AE_BAD_DATA);
363 * 3) Third subobject: Dereference the PRT.SourceName
365 ObjDesc = SubObjectList[2];
366 switch (ACPI_GET_OBJECT_TYPE (ObjDesc))
368 case ACPI_TYPE_LOCAL_REFERENCE:
370 if (ObjDesc->Reference.Opcode != AML_INT_NAMEPATH_OP)
372 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
373 "(PRT[%X].Source) Need name, found reference op %X\n",
374 Index, ObjDesc->Reference.Opcode));
375 return_ACPI_STATUS (AE_BAD_DATA);
378 Node = ObjDesc->Reference.Node;
380 /* Use *remaining* length of the buffer as max for pathname */
382 PathBuffer.Length = OutputBuffer->Length -
383 (UINT32) ((UINT8 *) UserPrt->Source -
384 (UINT8 *) OutputBuffer->Pointer);
385 PathBuffer.Pointer = UserPrt->Source;
387 Status = AcpiNsHandleToPathname ((ACPI_HANDLE) Node, &PathBuffer);
389 UserPrt->Length += (UINT32) ACPI_STRLEN (UserPrt->Source) + 1; /* include null terminator */
393 case ACPI_TYPE_STRING:
395 ACPI_STRCPY (UserPrt->Source, ObjDesc->String.Pointer);
397 /* Add to the Length field the length of the string (add 1 for terminator) */
399 UserPrt->Length += ObjDesc->String.Length + 1;
403 case ACPI_TYPE_INTEGER:
405 * If this is a number, then the Source Name is NULL, since the
406 * entire buffer was zeroed out, we can leave this alone.
408 * Add to the Length field the length of the UINT32 NULL
410 UserPrt->Length += sizeof (UINT32);
416 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
417 "(PRT[%X].Source) Need Ref/String/Integer, found %s\n",
418 Index, AcpiUtGetObjectTypeName (ObjDesc)));
419 return_ACPI_STATUS (AE_BAD_DATA);
422 /* Now align the current length */
424 UserPrt->Length = ACPI_ROUND_UP_TO_64BITS (UserPrt->Length);
427 * 4) Fourth subobject: Dereference the PRT.SourceIndex
429 ObjDesc = SubObjectList[3];
430 if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_INTEGER)
432 UserPrt->SourceIndex = (UINT32) ObjDesc->Integer.Value;
436 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
437 "(PRT[%X].SourceIndex) Need Integer, found %s\n",
438 Index, AcpiUtGetObjectTypeName (ObjDesc)));
439 return_ACPI_STATUS (AE_BAD_DATA);
442 /* Point to the next ACPI_OPERAND_OBJECT in the top level package */
447 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
448 OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
449 return_ACPI_STATUS (AE_OK);
453 /*******************************************************************************
455 * FUNCTION: AcpiRsCreateByteStream
457 * PARAMETERS: LinkedListBuffer - Pointer to the resource linked list
458 * OutputBuffer - Pointer to the user's buffer
460 * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code.
461 * If the OutputBuffer is too small, the error will be
462 * AE_BUFFER_OVERFLOW and OutputBuffer->Length will point
463 * to the size buffer needed.
465 * DESCRIPTION: Takes the linked list of device resources and
466 * creates a bytestream to be used as input for the
467 * _SRS control method.
469 ******************************************************************************/
472 AcpiRsCreateByteStream (
473 ACPI_RESOURCE *LinkedListBuffer,
474 ACPI_BUFFER *OutputBuffer)
477 ACPI_SIZE ByteStreamSizeNeeded = 0;
480 ACPI_FUNCTION_TRACE ("RsCreateByteStream");
483 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "LinkedListBuffer = %p\n",
487 * Params already validated, so we don't re-validate here
489 * Pass the LinkedListBuffer into a module that calculates
490 * the buffer size needed for the byte stream.
492 Status = AcpiRsGetByteStreamLength (LinkedListBuffer,
493 &ByteStreamSizeNeeded);
495 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ByteStreamSizeNeeded=%X, %s\n",
496 (UINT32) ByteStreamSizeNeeded, AcpiFormatException (Status)));
497 if (ACPI_FAILURE (Status))
499 return_ACPI_STATUS (Status);
502 /* Validate/Allocate/Clear caller buffer */
504 Status = AcpiUtInitializeBuffer (OutputBuffer, ByteStreamSizeNeeded);
505 if (ACPI_FAILURE (Status))
507 return_ACPI_STATUS (Status);
510 /* Do the conversion */
512 Status = AcpiRsListToByteStream (LinkedListBuffer, ByteStreamSizeNeeded,
513 OutputBuffer->Pointer);
514 if (ACPI_FAILURE (Status))
516 return_ACPI_STATUS (Status);
519 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
520 OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
521 return_ACPI_STATUS (AE_OK);