1 /******************************************************************************
2 *
3 * Module Name: exconcat - Concatenate-type AML operators
4 *
5 *****************************************************************************/
6
7 /******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
12 * All rights reserved.
13 *
14 * 2. License
15 *
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
19 * property rights.
20 *
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
27 *
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
36 *
37 * The above copyright and patent license is granted only if the following
38 * conditions are met:
39 *
40 * 3. Conditions
41 *
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
53 *
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
64 * make.
65 *
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3.4. Intel retains all right, title, and interest in and to the Original
73 * Intel Code.
74 *
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
79 *
80 * 4. Disclaimer and Export Compliance
81 *
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89 * PARTICULAR PURPOSE.
90 *
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
98 * LIMITED REMEDY.
99 *
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.
114 *
115 *****************************************************************************
116 *
117 * Alternatively, you may choose to be licensed under the terms of the
118 * following license:
119 *
120 * Redistribution and use in source and binary forms, with or without
121 * modification, are permitted provided that the following conditions
122 * are met:
123 * 1. Redistributions of source code must retain the above copyright
124 * notice, this list of conditions, and the following disclaimer,
125 * without modification.
126 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
127 * substantially similar to the "NO WARRANTY" disclaimer below
128 * ("Disclaimer") and any redistribution must be conditioned upon
129 * including a substantially similar Disclaimer requirement for further
130 * binary redistribution.
131 * 3. Neither the names of the above-listed copyright holders nor the names
132 * of any contributors may be used to endorse or promote products derived
133 * from this software without specific prior written permission.
134 *
135 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
136 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
137 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
138 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
139 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
140 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
141 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
142 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
143 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
144 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
145 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
146 *
147 * Alternatively, you may choose to be licensed under the terms of the
148 * GNU General Public License ("GPL") version 2 as published by the Free
149 * Software Foundation.
150 *
151 *****************************************************************************/
152
153 #include "acpi.h"
154 #include "accommon.h"
155 #include "acinterp.h"
156 #include "amlresrc.h"
157
158
159 #define _COMPONENT ACPI_EXECUTER
160 ACPI_MODULE_NAME ("exconcat")
161
162 /* Local Prototypes */
163
164 static ACPI_STATUS
165 AcpiExConvertToObjectTypeString (
166 ACPI_OPERAND_OBJECT *ObjDesc,
167 ACPI_OPERAND_OBJECT **ResultDesc);
168
169
170 /*******************************************************************************
171 *
172 * FUNCTION: AcpiExDoConcatenate
173 *
174 * PARAMETERS: Operand0 - First source object
175 * Operand1 - Second source object
176 * ActualReturnDesc - Where to place the return object
177 * WalkState - Current walk state
178 *
179 * RETURN: Status
180 *
181 * DESCRIPTION: Concatenate two objects with the ACPI-defined conversion
182 * rules as necessary.
183 * NOTE:
184 * Per the ACPI spec (up to 6.1), Concatenate only supports Integer,
185 * String, and Buffer objects. However, we support all objects here
186 * as an extension. This improves the usefulness of both Concatenate
187 * and the Printf/Fprintf macros. The extension returns a string
188 * describing the object type for the other objects.
189 * 02/2016.
190 *
191 ******************************************************************************/
192
193 ACPI_STATUS
AcpiExDoConcatenate(ACPI_OPERAND_OBJECT * Operand0,ACPI_OPERAND_OBJECT * Operand1,ACPI_OPERAND_OBJECT ** ActualReturnDesc,ACPI_WALK_STATE * WalkState)194 AcpiExDoConcatenate (
195 ACPI_OPERAND_OBJECT *Operand0,
196 ACPI_OPERAND_OBJECT *Operand1,
197 ACPI_OPERAND_OBJECT **ActualReturnDesc,
198 ACPI_WALK_STATE *WalkState)
199 {
200 ACPI_OPERAND_OBJECT *LocalOperand0 = Operand0;
201 ACPI_OPERAND_OBJECT *LocalOperand1 = Operand1;
202 ACPI_OPERAND_OBJECT *TempOperand1 = NULL;
203 ACPI_OPERAND_OBJECT *ReturnDesc;
204 char *Buffer;
205 ACPI_OBJECT_TYPE Operand0Type;
206 ACPI_OBJECT_TYPE Operand1Type;
207 ACPI_STATUS Status;
208
209
210 ACPI_FUNCTION_TRACE (ExDoConcatenate);
211
212
213 /* Operand 0 preprocessing */
214
215 switch (Operand0->Common.Type)
216 {
217 case ACPI_TYPE_INTEGER:
218 case ACPI_TYPE_STRING:
219 case ACPI_TYPE_BUFFER:
220
221 Operand0Type = Operand0->Common.Type;
222 break;
223
224 default:
225
226 /* For all other types, get the "object type" string */
227
228 Status = AcpiExConvertToObjectTypeString (
229 Operand0, &LocalOperand0);
230 if (ACPI_FAILURE (Status))
231 {
232 goto Cleanup;
233 }
234
235 Operand0Type = ACPI_TYPE_STRING;
236 break;
237 }
238
239 /* Operand 1 preprocessing */
240
241 switch (Operand1->Common.Type)
242 {
243 case ACPI_TYPE_INTEGER:
244 case ACPI_TYPE_STRING:
245 case ACPI_TYPE_BUFFER:
246
247 Operand1Type = Operand1->Common.Type;
248 break;
249
250 default:
251
252 /* For all other types, get the "object type" string */
253
254 Status = AcpiExConvertToObjectTypeString (
255 Operand1, &LocalOperand1);
256 if (ACPI_FAILURE (Status))
257 {
258 goto Cleanup;
259 }
260
261 Operand1Type = ACPI_TYPE_STRING;
262 break;
263 }
264
265 /*
266 * Convert the second operand if necessary. The first operand (0)
267 * determines the type of the second operand (1) (See the Data Types
268 * section of the ACPI specification). Both object types are
269 * guaranteed to be either Integer/String/Buffer by the operand
270 * resolution mechanism.
271 */
272 switch (Operand0Type)
273 {
274 case ACPI_TYPE_INTEGER:
275
276 Status = AcpiExConvertToInteger (LocalOperand1, &TempOperand1,
277 ACPI_IMPLICIT_CONVERSION);
278 break;
279
280 case ACPI_TYPE_BUFFER:
281
282 Status = AcpiExConvertToBuffer (LocalOperand1, &TempOperand1);
283 break;
284
285 case ACPI_TYPE_STRING:
286
287 switch (Operand1Type)
288 {
289 case ACPI_TYPE_INTEGER:
290 case ACPI_TYPE_STRING:
291 case ACPI_TYPE_BUFFER:
292
293 /* Other types have already been converted to string */
294
295 Status = AcpiExConvertToString (
296 LocalOperand1, &TempOperand1, ACPI_IMPLICIT_CONVERT_HEX);
297 break;
298
299 default:
300
301 Status = AE_OK;
302 break;
303 }
304 break;
305
306 default:
307
308 ACPI_ERROR ((AE_INFO, "Invalid object type: 0x%X",
309 Operand0->Common.Type));
310 Status = AE_AML_INTERNAL;
311 }
312
313 if (ACPI_FAILURE (Status))
314 {
315 goto Cleanup;
316 }
317
318 /* Take care with any newly created operand objects */
319
320 if ((LocalOperand1 != Operand1) &&
321 (LocalOperand1 != TempOperand1))
322 {
323 AcpiUtRemoveReference (LocalOperand1);
324 }
325
326 LocalOperand1 = TempOperand1;
327
328 /*
329 * Both operands are now known to be the same object type
330 * (Both are Integer, String, or Buffer), and we can now perform
331 * the concatenation.
332 *
333 * There are three cases to handle, as per the ACPI spec:
334 *
335 * 1) Two Integers concatenated to produce a new Buffer
336 * 2) Two Strings concatenated to produce a new String
337 * 3) Two Buffers concatenated to produce a new Buffer
338 */
339 switch (Operand0Type)
340 {
341 case ACPI_TYPE_INTEGER:
342
343 /* Result of two Integers is a Buffer */
344 /* Need enough buffer space for two integers */
345
346 ReturnDesc = AcpiUtCreateBufferObject (
347 (ACPI_SIZE) ACPI_MUL_2 (AcpiGbl_IntegerByteWidth));
348 if (!ReturnDesc)
349 {
350 Status = AE_NO_MEMORY;
351 goto Cleanup;
352 }
353
354 Buffer = (char *) ReturnDesc->Buffer.Pointer;
355
356 /* Copy the first integer, LSB first */
357
358 memcpy (Buffer, &Operand0->Integer.Value,
359 AcpiGbl_IntegerByteWidth);
360
361 /* Copy the second integer (LSB first) after the first */
362
363 memcpy (Buffer + AcpiGbl_IntegerByteWidth,
364 &LocalOperand1->Integer.Value, AcpiGbl_IntegerByteWidth);
365 break;
366
367 case ACPI_TYPE_STRING:
368
369 /* Result of two Strings is a String */
370
371 ReturnDesc = AcpiUtCreateStringObject (
372 ((ACPI_SIZE) LocalOperand0->String.Length +
373 LocalOperand1->String.Length));
374 if (!ReturnDesc)
375 {
376 Status = AE_NO_MEMORY;
377 goto Cleanup;
378 }
379
380 Buffer = ReturnDesc->String.Pointer;
381
382 /* Concatenate the strings */
383
384 strcpy (Buffer, LocalOperand0->String.Pointer);
385 strcat (Buffer, LocalOperand1->String.Pointer);
386 break;
387
388 case ACPI_TYPE_BUFFER:
389
390 /* Result of two Buffers is a Buffer */
391
392 ReturnDesc = AcpiUtCreateBufferObject (
393 ((ACPI_SIZE) Operand0->Buffer.Length +
394 LocalOperand1->Buffer.Length));
395 if (!ReturnDesc)
396 {
397 Status = AE_NO_MEMORY;
398 goto Cleanup;
399 }
400
401 Buffer = (char *) ReturnDesc->Buffer.Pointer;
402
403 /* Concatenate the buffers */
404
405 memcpy (Buffer, Operand0->Buffer.Pointer,
406 Operand0->Buffer.Length);
407 memcpy (Buffer + Operand0->Buffer.Length,
408 LocalOperand1->Buffer.Pointer,
409 LocalOperand1->Buffer.Length);
410 break;
411
412 default:
413
414 /* Invalid object type, should not happen here */
415
416 ACPI_ERROR ((AE_INFO, "Invalid object type: 0x%X",
417 Operand0->Common.Type));
418 Status = AE_AML_INTERNAL;
419 goto Cleanup;
420 }
421
422 *ActualReturnDesc = ReturnDesc;
423
424 Cleanup:
425 if (LocalOperand0 != Operand0)
426 {
427 AcpiUtRemoveReference (LocalOperand0);
428 }
429
430 if (LocalOperand1 != Operand1)
431 {
432 AcpiUtRemoveReference (LocalOperand1);
433 }
434
435 return_ACPI_STATUS (Status);
436 }
437
438
439 /*******************************************************************************
440 *
441 * FUNCTION: AcpiExConvertToObjectTypeString
442 *
443 * PARAMETERS: ObjDesc - Object to be converted
444 * ReturnDesc - Where to place the return object
445 *
446 * RETURN: Status
447 *
448 * DESCRIPTION: Convert an object of arbitrary type to a string object that
449 * contains the namestring for the object. Used for the
450 * concatenate operator.
451 *
452 ******************************************************************************/
453
454 static ACPI_STATUS
AcpiExConvertToObjectTypeString(ACPI_OPERAND_OBJECT * ObjDesc,ACPI_OPERAND_OBJECT ** ResultDesc)455 AcpiExConvertToObjectTypeString (
456 ACPI_OPERAND_OBJECT *ObjDesc,
457 ACPI_OPERAND_OBJECT **ResultDesc)
458 {
459 ACPI_OPERAND_OBJECT *ReturnDesc;
460 const char *TypeString;
461
462
463 TypeString = AcpiUtGetTypeName (ObjDesc->Common.Type);
464
465 ReturnDesc = AcpiUtCreateStringObject (
466 ((ACPI_SIZE) strlen (TypeString) + 9)); /* 9 For "[ Object]" */
467 if (!ReturnDesc)
468 {
469 return (AE_NO_MEMORY);
470 }
471
472 strcpy (ReturnDesc->String.Pointer, "[");
473 strcat (ReturnDesc->String.Pointer, TypeString);
474 strcat (ReturnDesc->String.Pointer, " Object]");
475
476 *ResultDesc = ReturnDesc;
477 return (AE_OK);
478 }
479
480
481 /*******************************************************************************
482 *
483 * FUNCTION: AcpiExConcatTemplate
484 *
485 * PARAMETERS: Operand0 - First source object
486 * Operand1 - Second source object
487 * ActualReturnDesc - Where to place the return object
488 * WalkState - Current walk state
489 *
490 * RETURN: Status
491 *
492 * DESCRIPTION: Concatenate two resource templates
493 *
494 ******************************************************************************/
495
496 ACPI_STATUS
AcpiExConcatTemplate(ACPI_OPERAND_OBJECT * Operand0,ACPI_OPERAND_OBJECT * Operand1,ACPI_OPERAND_OBJECT ** ActualReturnDesc,ACPI_WALK_STATE * WalkState)497 AcpiExConcatTemplate (
498 ACPI_OPERAND_OBJECT *Operand0,
499 ACPI_OPERAND_OBJECT *Operand1,
500 ACPI_OPERAND_OBJECT **ActualReturnDesc,
501 ACPI_WALK_STATE *WalkState)
502 {
503 ACPI_STATUS Status;
504 ACPI_OPERAND_OBJECT *ReturnDesc;
505 UINT8 *NewBuf;
506 UINT8 *EndTag;
507 ACPI_SIZE Length0;
508 ACPI_SIZE Length1;
509 ACPI_SIZE NewLength;
510
511
512 ACPI_FUNCTION_TRACE (ExConcatTemplate);
513
514
515 /*
516 * Find the EndTag descriptor in each resource template.
517 * Note1: returned pointers point TO the EndTag, not past it.
518 * Note2: zero-length buffers are allowed; treated like one EndTag
519 */
520
521 /* Get the length of the first resource template */
522
523 Status = AcpiUtGetResourceEndTag (Operand0, &EndTag);
524 if (ACPI_FAILURE (Status))
525 {
526 return_ACPI_STATUS (Status);
527 }
528
529 Length0 = ACPI_PTR_DIFF (EndTag, Operand0->Buffer.Pointer);
530
531 /* Get the length of the second resource template */
532
533 Status = AcpiUtGetResourceEndTag (Operand1, &EndTag);
534 if (ACPI_FAILURE (Status))
535 {
536 return_ACPI_STATUS (Status);
537 }
538
539 Length1 = ACPI_PTR_DIFF (EndTag, Operand1->Buffer.Pointer);
540
541 /* Combine both lengths, minimum size will be 2 for EndTag */
542
543 NewLength = Length0 + Length1 + sizeof (AML_RESOURCE_END_TAG);
544
545 /* Create a new buffer object for the result (with one EndTag) */
546
547 ReturnDesc = AcpiUtCreateBufferObject (NewLength);
548 if (!ReturnDesc)
549 {
550 return_ACPI_STATUS (AE_NO_MEMORY);
551 }
552
553 /*
554 * Copy the templates to the new buffer, 0 first, then 1 follows. One
555 * EndTag descriptor is copied from Operand1.
556 */
557 NewBuf = ReturnDesc->Buffer.Pointer;
558 memcpy (NewBuf, Operand0->Buffer.Pointer, Length0);
559 memcpy (NewBuf + Length0, Operand1->Buffer.Pointer, Length1);
560
561 /* Insert EndTag and set the checksum to zero, means "ignore checksum" */
562
563 NewBuf[NewLength - 1] = 0;
564 NewBuf[NewLength - 2] = ACPI_RESOURCE_NAME_END_TAG | 1;
565
566 /* Return the completed resource template */
567
568 *ActualReturnDesc = ReturnDesc;
569 return_ACPI_STATUS (AE_OK);
570 }
571