1 /******************************************************************************
2 *
3 * Module Name: dmrestag - Add tags to resource descriptors (Application-level)
4 *
5 *****************************************************************************/
6
7 /******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2020, 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 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88 * PARTICULAR PURPOSE.
89 *
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97 * LIMITED REMEDY.
98 *
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
113 *
114 *****************************************************************************
115 *
116 * Alternatively, you may choose to be licensed under the terms of the
117 * following license:
118 *
119 * Redistribution and use in source and binary forms, with or without
120 * modification, are permitted provided that the following conditions
121 * are met:
122 * 1. Redistributions of source code must retain the above copyright
123 * notice, this list of conditions, and the following disclaimer,
124 * without modification.
125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126 * substantially similar to the "NO WARRANTY" disclaimer below
127 * ("Disclaimer") and any redistribution must be conditioned upon
128 * including a substantially similar Disclaimer requirement for further
129 * binary redistribution.
130 * 3. Neither the names of the above-listed copyright holders nor the names
131 * of any contributors may be used to endorse or promote products derived
132 * from this software without specific prior written permission.
133 *
134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145 *
146 * Alternatively, you may choose to be licensed under the terms of the
147 * GNU General Public License ("GPL") version 2 as published by the Free
148 * Software Foundation.
149 *
150 *****************************************************************************/
151
152 #include <contrib/dev/acpica/include/acpi.h>
153 #include <contrib/dev/acpica/include/accommon.h>
154 #include <contrib/dev/acpica/include/acparser.h>
155 #include <contrib/dev/acpica/include/acdisasm.h>
156 #include <contrib/dev/acpica/include/acnamesp.h>
157 #include <contrib/dev/acpica/include/amlcode.h>
158
159 /* This module used for application-level code only */
160
161 #define _COMPONENT ACPI_CA_DISASSEMBLER
162 ACPI_MODULE_NAME ("dmrestag")
163
164 /* Local prototypes */
165
166 static void
167 AcpiDmUpdateResourceName (
168 ACPI_NAMESPACE_NODE *ResourceNode);
169
170 static char *
171 AcpiDmSearchTagList (
172 UINT32 BitIndex,
173 const ACPI_RESOURCE_TAG *TagList);
174
175 static char *
176 AcpiDmGetResourceTag (
177 UINT32 BitIndex,
178 AML_RESOURCE *Resource,
179 UINT8 ResourceIndex);
180
181 static char *
182 AcpiGetTagPathname (
183 ACPI_PARSE_OBJECT *Op,
184 ACPI_NAMESPACE_NODE *BufferNode,
185 ACPI_NAMESPACE_NODE *ResourceNode,
186 UINT32 BitIndex);
187
188 static ACPI_NAMESPACE_NODE *
189 AcpiDmGetResourceNode (
190 ACPI_NAMESPACE_NODE *BufferNode,
191 UINT32 BitIndex);
192
193 static ACPI_STATUS
194 AcpiDmAddResourceToNamespace (
195 UINT8 *Aml,
196 UINT32 Length,
197 UINT32 Offset,
198 UINT8 ResourceIndex,
199 void **Context);
200
201 static void
202 AcpiDmAddResourcesToNamespace (
203 ACPI_NAMESPACE_NODE *BufferNode,
204 ACPI_PARSE_OBJECT *Op);
205
206
207 /******************************************************************************
208 *
209 * Resource Tag tables
210 *
211 * These are the predefined tags that refer to elements of a resource
212 * descriptor. Each name and offset is defined in the ACPI specification.
213 *
214 * Each table entry contains the bit offset of the field and the associated
215 * name.
216 *
217 ******************************************************************************/
218
219 static const ACPI_RESOURCE_TAG AcpiDmIrqTags[] =
220 {
221 {( 1 * 8), ACPI_RESTAG_INTERRUPT},
222 {( 3 * 8) + 0, ACPI_RESTAG_INTERRUPTTYPE},
223 {( 3 * 8) + 3, ACPI_RESTAG_INTERRUPTLEVEL},
224 {( 3 * 8) + 4, ACPI_RESTAG_INTERRUPTSHARE},
225 {0, NULL}
226 };
227
228 static const ACPI_RESOURCE_TAG AcpiDmDmaTags[] =
229 {
230 {( 1 * 8), ACPI_RESTAG_DMA},
231 {( 2 * 8) + 0, ACPI_RESTAG_XFERTYPE},
232 {( 2 * 8) + 2, ACPI_RESTAG_BUSMASTER},
233 {( 2 * 8) + 5, ACPI_RESTAG_DMATYPE},
234 {0, NULL}
235 };
236
237 static const ACPI_RESOURCE_TAG AcpiDmIoTags[] =
238 {
239 {( 1 * 8) + 0, ACPI_RESTAG_DECODE},
240 {( 2 * 8), ACPI_RESTAG_MINADDR},
241 {( 4 * 8), ACPI_RESTAG_MAXADDR},
242 {( 6 * 8), ACPI_RESTAG_ALIGNMENT},
243 {( 7 * 8), ACPI_RESTAG_LENGTH},
244 {0, NULL}
245 };
246
247 static const ACPI_RESOURCE_TAG AcpiDmFixedIoTags[] =
248 {
249 {( 1 * 8), ACPI_RESTAG_BASEADDRESS},
250 {( 3 * 8), ACPI_RESTAG_LENGTH},
251 {0, NULL}
252 };
253
254 static const ACPI_RESOURCE_TAG AcpiDmFixedDmaTags[] =
255 {
256 {( 1 * 8), ACPI_RESTAG_DMA},
257 {( 3 * 8), ACPI_RESTAG_DMATYPE},
258 {( 5 * 8), ACPI_RESTAG_XFERTYPE},
259 {0, NULL}
260 };
261
262 static const ACPI_RESOURCE_TAG AcpiDmMemory24Tags[] =
263 {
264 {( 3 * 8) + 0, ACPI_RESTAG_READWRITETYPE},
265 {( 4 * 8), ACPI_RESTAG_MINADDR},
266 {( 6 * 8), ACPI_RESTAG_MAXADDR},
267 {( 8 * 8), ACPI_RESTAG_ALIGNMENT},
268 {(10 * 8), ACPI_RESTAG_LENGTH},
269 {0, NULL}
270 };
271
272 static const ACPI_RESOURCE_TAG AcpiDmRegisterTags[] =
273 {
274 {( 3 * 8), ACPI_RESTAG_ADDRESSSPACE},
275 {( 4 * 8), ACPI_RESTAG_REGISTERBITWIDTH},
276 {( 5 * 8), ACPI_RESTAG_REGISTERBITOFFSET},
277 {( 6 * 8), ACPI_RESTAG_ACCESSSIZE},
278 {( 7 * 8), ACPI_RESTAG_ADDRESS},
279 {0, NULL}
280 };
281
282 static const ACPI_RESOURCE_TAG AcpiDmMemory32Tags[] =
283 {
284 {( 3 * 8) + 0, ACPI_RESTAG_READWRITETYPE},
285 {( 4 * 8), ACPI_RESTAG_MINADDR},
286 {( 8 * 8), ACPI_RESTAG_MAXADDR},
287 {(12 * 8), ACPI_RESTAG_ALIGNMENT},
288 {(16 * 8), ACPI_RESTAG_LENGTH},
289 {0, NULL}
290 };
291
292 static const ACPI_RESOURCE_TAG AcpiDmFixedMemory32Tags[] =
293 {
294 {( 3 * 8) + 0, ACPI_RESTAG_READWRITETYPE},
295 {( 4 * 8), ACPI_RESTAG_BASEADDRESS},
296 {( 8 * 8), ACPI_RESTAG_LENGTH},
297 {0, NULL}
298 };
299
300 static const ACPI_RESOURCE_TAG AcpiDmInterruptTags[] =
301 {
302 {( 3 * 8) + 1, ACPI_RESTAG_INTERRUPTTYPE},
303 {( 3 * 8) + 2, ACPI_RESTAG_INTERRUPTLEVEL},
304 {( 3 * 8) + 3, ACPI_RESTAG_INTERRUPTSHARE},
305 {( 5 * 8), ACPI_RESTAG_INTERRUPT},
306 {0, NULL}
307 };
308
309 static const ACPI_RESOURCE_TAG AcpiDmAddress16Tags[] =
310 {
311 {( 4 * 8) + 1, ACPI_RESTAG_DECODE},
312 {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE},
313 {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE},
314 {( 6 * 8), ACPI_RESTAG_GRANULARITY},
315 {( 8 * 8), ACPI_RESTAG_MINADDR},
316 {(10 * 8), ACPI_RESTAG_MAXADDR},
317 {(12 * 8), ACPI_RESTAG_TRANSLATION},
318 {(14 * 8), ACPI_RESTAG_LENGTH},
319 {0, NULL}
320 };
321
322 static const ACPI_RESOURCE_TAG AcpiDmAddress32Tags[] =
323 {
324 {( 4 * 8) + 1, ACPI_RESTAG_DECODE},
325 {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE},
326 {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE},
327 {( 6 * 8), ACPI_RESTAG_GRANULARITY},
328 {(10 * 8), ACPI_RESTAG_MINADDR},
329 {(14 * 8), ACPI_RESTAG_MAXADDR},
330 {(18 * 8), ACPI_RESTAG_TRANSLATION},
331 {(22 * 8), ACPI_RESTAG_LENGTH},
332 {0, NULL}
333 };
334
335 static const ACPI_RESOURCE_TAG AcpiDmAddress64Tags[] =
336 {
337 {( 4 * 8) + 1, ACPI_RESTAG_DECODE},
338 {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE},
339 {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE},
340 {( 6 * 8), ACPI_RESTAG_GRANULARITY},
341 {(14 * 8), ACPI_RESTAG_MINADDR},
342 {(22 * 8), ACPI_RESTAG_MAXADDR},
343 {(30 * 8), ACPI_RESTAG_TRANSLATION},
344 {(38 * 8), ACPI_RESTAG_LENGTH},
345 {0, NULL}
346 };
347
348 static const ACPI_RESOURCE_TAG AcpiDmExtendedAddressTags[] =
349 {
350 {( 4 * 8) + 1, ACPI_RESTAG_DECODE},
351 {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE},
352 {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE},
353 {( 8 * 8), ACPI_RESTAG_GRANULARITY},
354 {(16 * 8), ACPI_RESTAG_MINADDR},
355 {(24 * 8), ACPI_RESTAG_MAXADDR},
356 {(32 * 8), ACPI_RESTAG_TRANSLATION},
357 {(40 * 8), ACPI_RESTAG_LENGTH},
358 {(48 * 8), ACPI_RESTAG_TYPESPECIFICATTRIBUTES},
359 {0, NULL}
360 };
361
362 /* Subtype tables for GPIO descriptors */
363
364 static const ACPI_RESOURCE_TAG AcpiDmGpioIntTags[] =
365 {
366 {( 7 * 8) + 0, ACPI_RESTAG_MODE},
367 {( 7 * 8) + 1, ACPI_RESTAG_POLARITY},
368 {( 7 * 8) + 3, ACPI_RESTAG_INTERRUPTSHARE},
369 {( 9 * 8), ACPI_RESTAG_PINCONFIG},
370 {(10 * 8), ACPI_RESTAG_DRIVESTRENGTH},
371 {(12 * 8), ACPI_RESTAG_DEBOUNCETIME},
372 {0, NULL}
373 };
374
375 static const ACPI_RESOURCE_TAG AcpiDmGpioIoTags[] =
376 {
377 {( 7 * 8) + 0, ACPI_RESTAG_IORESTRICTION},
378 {( 7 * 8) + 3, ACPI_RESTAG_INTERRUPTSHARE},
379 {( 9 * 8), ACPI_RESTAG_PINCONFIG},
380 {(10 * 8), ACPI_RESTAG_DRIVESTRENGTH},
381 {(12 * 8), ACPI_RESTAG_DEBOUNCETIME},
382 {0, NULL}
383 };
384
385 /* Subtype tables for SerialBus descriptors */
386
387 static const ACPI_RESOURCE_TAG AcpiDmI2cSerialBusTags[] =
388 {
389 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE},
390 {( 6 * 8) + 2, ACPI_RESTAG_INTERRUPTSHARE}, /* V2 - ACPI 6.0 */
391 {( 7 * 8) + 0, ACPI_RESTAG_MODE},
392 {(12 * 8), ACPI_RESTAG_SPEED},
393 {(16 * 8), ACPI_RESTAG_ADDRESS},
394 {0, NULL}
395 };
396
397 static const ACPI_RESOURCE_TAG AcpiDmSpiSerialBusTags[] =
398 {
399 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE},
400 {( 6 * 8) + 2, ACPI_RESTAG_INTERRUPTSHARE}, /* V2 - ACPI 6.0 */
401 {( 7 * 8) + 0, ACPI_RESTAG_MODE},
402 {( 7 * 8) + 1, ACPI_RESTAG_DEVICEPOLARITY},
403 {(12 * 8), ACPI_RESTAG_SPEED},
404 {(16 * 8), ACPI_RESTAG_LENGTH},
405 {(17 * 8), ACPI_RESTAG_PHASE},
406 {(18 * 8), ACPI_RESTAG_POLARITY},
407 {(19 * 8), ACPI_RESTAG_ADDRESS},
408 {0, NULL}
409 };
410
411 static const ACPI_RESOURCE_TAG AcpiDmUartSerialBusTags[] =
412 {
413 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE}, /* Note: not part of original macro */
414 {( 6 * 8) + 2, ACPI_RESTAG_INTERRUPTSHARE}, /* V2 - ACPI 6.0 */
415 {( 7 * 8) + 0, ACPI_RESTAG_FLOWCONTROL},
416 {( 7 * 8) + 2, ACPI_RESTAG_STOPBITS},
417 {( 7 * 8) + 4, ACPI_RESTAG_LENGTH},
418 {( 7 * 8) + 7, ACPI_RESTAG_ENDIANNESS},
419 {(12 * 8), ACPI_RESTAG_SPEED},
420 {(16 * 8), ACPI_RESTAG_LENGTH_RX},
421 {(18 * 8), ACPI_RESTAG_LENGTH_TX},
422 {(20 * 8), ACPI_RESTAG_PARITY},
423 {(21 * 8), ACPI_RESTAG_LINE},
424 {0, NULL}
425 };
426
427 /* Subtype tables for PinFunction descriptor */
428
429 static const ACPI_RESOURCE_TAG AcpiDmPinFunctionTags[] =
430 {
431 {( 4 * 8), ACPI_RESTAG_INTERRUPTSHARE},
432 {( 6 * 8), ACPI_RESTAG_PINCONFIG},
433 {( 7 * 8), ACPI_RESTAG_FUNCTION},
434 {0, NULL}
435 };
436
437 /* Subtype tables for PinConfig descriptor */
438
439 static const ACPI_RESOURCE_TAG AcpiDmPinConfigTags[] =
440 {
441 {( 4 * 8), ACPI_RESTAG_INTERRUPTSHARE},
442 {( 6 * 8), ACPI_RESTAG_PINCONFIG_TYPE},
443 {( 7 * 8), ACPI_RESTAG_PINCONFIG_VALUE},
444 {0, NULL}
445 };
446
447 /* Subtype tables for PinGroupFunction descriptor */
448
449 static const ACPI_RESOURCE_TAG AcpiDmPinGroupFunctionTags[] =
450 {
451 {( 6 * 8), ACPI_RESTAG_FUNCTION},
452 {0, NULL}
453 };
454
455 /* Subtype tables for Address descriptor type-specific flags */
456
457 static const ACPI_RESOURCE_TAG AcpiDmMemoryFlagTags[] =
458 {
459 {( 5 * 8) + 0, ACPI_RESTAG_READWRITETYPE},
460 {( 5 * 8) + 1, ACPI_RESTAG_MEMTYPE},
461 {( 5 * 8) + 3, ACPI_RESTAG_MEMATTRIBUTES},
462 {( 5 * 8) + 5, ACPI_RESTAG_TYPE},
463 {0, NULL}
464 };
465
466 static const ACPI_RESOURCE_TAG AcpiDmIoFlagTags[] =
467 {
468 {( 5 * 8) + 0, ACPI_RESTAG_RANGETYPE},
469 {( 5 * 8) + 4, ACPI_RESTAG_TYPE},
470 {( 5 * 8) + 5, ACPI_RESTAG_TRANSTYPE},
471 {0, NULL}
472 };
473
474
475 /*
476 * Dispatch table used to obtain the correct tag table for a descriptor.
477 *
478 * A NULL in this table means one of three things:
479 * 1) The descriptor ID is reserved and invalid
480 * 2) The descriptor has no tags associated with it
481 * 3) The descriptor has subtypes and a separate table will be used.
482 */
483 static const ACPI_RESOURCE_TAG *AcpiGbl_ResourceTags[] =
484 {
485 /* Small descriptors */
486
487 NULL, /* 0x00, Reserved */
488 NULL, /* 0x01, Reserved */
489 NULL, /* 0x02, Reserved */
490 NULL, /* 0x03, Reserved */
491 AcpiDmIrqTags, /* 0x04, ACPI_RESOURCE_NAME_IRQ_FORMAT */
492 AcpiDmDmaTags, /* 0x05, ACPI_RESOURCE_NAME_DMA_FORMAT */
493 NULL, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */
494 NULL, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */
495 AcpiDmIoTags, /* 0x08, ACPI_RESOURCE_NAME_IO_PORT */
496 AcpiDmFixedIoTags, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO_PORT */
497 AcpiDmFixedDmaTags, /* 0x0A, ACPI_RESOURCE_NAME_FIXED_DMA */
498 NULL, /* 0x0B, Reserved */
499 NULL, /* 0x0C, Reserved */
500 NULL, /* 0x0D, Reserved */
501 NULL, /* 0x0E, ACPI_RESOURCE_NAME_SMALL_VENDOR */
502 NULL, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG (not used) */
503
504 /* Large descriptors */
505
506 NULL, /* 0x00, Reserved */
507 AcpiDmMemory24Tags, /* 0x01, ACPI_RESOURCE_NAME_MEMORY_24 */
508 AcpiDmRegisterTags, /* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */
509 NULL, /* 0x03, Reserved */
510 NULL, /* 0x04, ACPI_RESOURCE_NAME_LARGE_VENDOR */
511 AcpiDmMemory32Tags, /* 0x05, ACPI_RESOURCE_NAME_MEMORY_32 */
512 AcpiDmFixedMemory32Tags, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY_32 */
513 AcpiDmAddress32Tags, /* 0x07, ACPI_RESOURCE_NAME_DWORD_ADDRESS_SPACE */
514 AcpiDmAddress16Tags, /* 0x08, ACPI_RESOURCE_NAME_WORD_ADDRESS_SPACE */
515 AcpiDmInterruptTags, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_XRUPT */
516 AcpiDmAddress64Tags, /* 0x0A, ACPI_RESOURCE_NAME_QWORD_ADDRESS_SPACE */
517 AcpiDmExtendedAddressTags, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS_SPACE */
518 NULL, /* 0x0C, ACPI_RESOURCE_NAME_GPIO - Use Subtype table below */
519 AcpiDmPinFunctionTags, /* 0x0D, ACPI_RESOURCE_NAME_PIN_FUNCTION */
520 NULL, /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS - Use Subtype table below */
521 AcpiDmPinConfigTags, /* 0x0F, ACPI_RESOURCE_NAME_PIN_CONFIG */
522 NULL, /* 0x10, ACPI_RESOURCE_NAME_PIN_GROUP */
523 AcpiDmPinGroupFunctionTags, /* 0x11, ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION */
524 AcpiDmPinConfigTags, /* 0x12, ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG - Same as PinConfig */
525 };
526
527 /* GPIO Subtypes */
528
529 static const ACPI_RESOURCE_TAG *AcpiGbl_GpioResourceTags[] =
530 {
531 AcpiDmGpioIntTags, /* 0x00 Interrupt Connection */
532 AcpiDmGpioIoTags /* 0x01 I/O Connection */
533 };
534
535 /* Serial Bus Subtypes */
536
537 static const ACPI_RESOURCE_TAG *AcpiGbl_SerialResourceTags[] =
538 {
539 NULL, /* 0x00 Reserved */
540 AcpiDmI2cSerialBusTags, /* 0x01 I2C SerialBus */
541 AcpiDmSpiSerialBusTags, /* 0x02 SPI SerialBus */
542 AcpiDmUartSerialBusTags /* 0x03 UART SerialBus */
543 };
544
545 /*
546 * Globals used to generate unique resource descriptor names. We use names that
547 * start with underscore and a prefix letter that is not used by other ACPI
548 * reserved names. To this, we append hex 0x00 through 0xFF. These 5 prefixes
549 * allow for 5*256 = 1280 unique names, probably sufficient for any single ASL
550 * file. If this becomes too small, we can use alpha+numerals for a total
551 * of 5*36*36 = 6480.
552 */
553 #define ACPI_NUM_RES_PREFIX 5
554
555 static UINT32 AcpiGbl_NextResourceId = 0;
556 static UINT8 AcpiGbl_NextPrefix = 0;
557 static char AcpiGbl_Prefix[ACPI_NUM_RES_PREFIX] =
558 {'Y','Z','J','K','X'};
559
560
561 /*******************************************************************************
562 *
563 * FUNCTION: AcpiDmCheckResourceReference
564 *
565 * PARAMETERS: Op - Parse Op for the AML opcode
566 * WalkState - Current walk state (with valid scope)
567 *
568 * RETURN: None
569 *
570 * DESCRIPTION: Convert a reference to a resource descriptor to a symbolic
571 * reference if possible
572 *
573 * NOTE: Bit index is used to transparently handle both resource bit
574 * fields and byte fields.
575 *
576 ******************************************************************************/
577
578 void
AcpiDmCheckResourceReference(ACPI_PARSE_OBJECT * Op,ACPI_WALK_STATE * WalkState)579 AcpiDmCheckResourceReference (
580 ACPI_PARSE_OBJECT *Op,
581 ACPI_WALK_STATE *WalkState)
582 {
583 ACPI_STATUS Status;
584 ACPI_PARSE_OBJECT *BufferNameOp;
585 ACPI_PARSE_OBJECT *IndexOp;
586 ACPI_NAMESPACE_NODE *BufferNode;
587 ACPI_NAMESPACE_NODE *ResourceNode;
588 const ACPI_OPCODE_INFO *OpInfo;
589 UINT32 BitIndex;
590
591
592 /* We are only interested in the CreateXxxxField opcodes */
593
594 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
595 if (OpInfo->Type != AML_TYPE_CREATE_FIELD)
596 {
597 return;
598 }
599
600 /* Get the buffer term operand */
601
602 BufferNameOp = AcpiPsGetDepthNext (NULL, Op);
603
604 /* Must be a named buffer, not an arg or local or method call */
605
606 if (BufferNameOp->Common.AmlOpcode != AML_INT_NAMEPATH_OP)
607 {
608 return;
609 }
610
611 /* Get the Index term, must be an integer constant to convert */
612
613 IndexOp = BufferNameOp->Common.Next;
614
615 /* Major cheat: The Node field is also used for the Tag ptr. Clear it now */
616
617 IndexOp->Common.Node = NULL;
618
619 OpInfo = AcpiPsGetOpcodeInfo (IndexOp->Common.AmlOpcode);
620 if (OpInfo->ObjectType != ACPI_TYPE_INTEGER)
621 {
622 return;
623 }
624
625 /* Get the bit offset of the descriptor within the buffer */
626
627 if ((Op->Common.AmlOpcode == AML_CREATE_BIT_FIELD_OP) ||
628 (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP))
629 {
630 /* Index operand is a bit offset */
631
632 BitIndex = (UINT32) IndexOp->Common.Value.Integer;
633 }
634 else
635 {
636 /* Index operand is a byte offset, convert to bits */
637
638 BitIndex = (UINT32) ACPI_MUL_8 (IndexOp->Common.Value.Integer);
639 }
640
641 /* Lookup the buffer in the namespace */
642
643 Status = AcpiNsLookup (WalkState->ScopeInfo,
644 BufferNameOp->Common.Value.String, ACPI_TYPE_BUFFER,
645 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState,
646 &BufferNode);
647 if (ACPI_FAILURE (Status))
648 {
649 return;
650 }
651
652 /* Validate object type, we must have a buffer */
653
654 if (BufferNode->Type != ACPI_TYPE_BUFFER)
655 {
656 return;
657 }
658
659 /* Find the resource descriptor node corresponding to the index */
660
661 ResourceNode = AcpiDmGetResourceNode (BufferNode, BitIndex);
662 if (!ResourceNode)
663 {
664 return;
665 }
666
667 /* Translate the Index to a resource tag pathname */
668
669 AcpiGetTagPathname (IndexOp, BufferNode, ResourceNode, BitIndex);
670 }
671
672
673 /*******************************************************************************
674 *
675 * FUNCTION: AcpiDmGetResourceNode
676 *
677 * PARAMETERS: BufferNode - Node for the parent buffer
678 * BitIndex - Index into the resource descriptor
679 *
680 * RETURN: Namespace node for the resource descriptor. NULL if not found
681 *
682 * DESCRIPTION: Find a resource descriptor that corresponds to the bit index
683 *
684 ******************************************************************************/
685
686 static ACPI_NAMESPACE_NODE *
AcpiDmGetResourceNode(ACPI_NAMESPACE_NODE * BufferNode,UINT32 BitIndex)687 AcpiDmGetResourceNode (
688 ACPI_NAMESPACE_NODE *BufferNode,
689 UINT32 BitIndex)
690 {
691 ACPI_NAMESPACE_NODE *Node;
692 UINT32 ByteIndex = ACPI_DIV_8 (BitIndex);
693
694
695 /*
696 * Child list contains an entry for each resource descriptor. Find
697 * the descriptor that corresponds to the Index.
698 *
699 * If there are no children, this is not a resource template
700 */
701 Node = BufferNode->Child;
702 while (Node)
703 {
704 /*
705 * Check if the Index falls within this resource.
706 *
707 * Value contains the resource offset, Object contains the resource
708 * length (both in bytes)
709 */
710 if ((ByteIndex >= Node->Value) &&
711 (ByteIndex < (Node->Value + Node->Length)))
712 {
713 return (Node);
714 }
715
716 Node = Node->Peer;
717 }
718
719 return (NULL);
720 }
721
722
723 /*******************************************************************************
724 *
725 * FUNCTION: AcpiGetTagPathname
726 *
727 * PARAMETERS: BufferNode - Node for the parent buffer
728 * ResourceNode - Node for a resource descriptor
729 * BitIndex - Index into the resource descriptor
730 *
731 * RETURN: Full pathname for a resource tag. NULL if no match.
732 * Path is returned in AML (packed) format.
733 *
734 * DESCRIPTION: Convert a BitIndex into a symbolic resource tag (full pathname)
735 *
736 ******************************************************************************/
737
738 static char *
AcpiGetTagPathname(ACPI_PARSE_OBJECT * IndexOp,ACPI_NAMESPACE_NODE * BufferNode,ACPI_NAMESPACE_NODE * ResourceNode,UINT32 BitIndex)739 AcpiGetTagPathname (
740 ACPI_PARSE_OBJECT *IndexOp,
741 ACPI_NAMESPACE_NODE *BufferNode,
742 ACPI_NAMESPACE_NODE *ResourceNode,
743 UINT32 BitIndex)
744 {
745 ACPI_STATUS Status;
746 UINT32 ResourceBitIndex;
747 UINT8 ResourceTableIndex;
748 ACPI_SIZE RequiredSize;
749 char *Pathname;
750 char *PathnameEnd;
751 AML_RESOURCE *Aml;
752 ACPI_PARSE_OBJECT *Op;
753 char *InternalPath;
754 char *Tag;
755
756
757 /* Get the Op that contains the actual buffer data */
758
759 Op = BufferNode->Op->Common.Value.Arg;
760 Op = Op->Common.Next;
761 if (!Op)
762 {
763 return (NULL);
764 }
765
766 /* Get the individual resource descriptor and validate it */
767
768 Aml = ACPI_CAST_PTR (
769 AML_RESOURCE, &Op->Named.Data[ResourceNode->Value]);
770
771 Status = AcpiUtValidateResource (NULL, Aml, &ResourceTableIndex);
772 if (ACPI_FAILURE (Status))
773 {
774 return (NULL);
775 }
776
777 /* Get offset into this descriptor (from offset into entire buffer) */
778
779 ResourceBitIndex = BitIndex - ACPI_MUL_8 (ResourceNode->Value);
780
781 /* Get the tag associated with this resource descriptor and offset */
782
783 Tag = AcpiDmGetResourceTag (ResourceBitIndex, Aml, ResourceTableIndex);
784 if (!Tag)
785 {
786 return (NULL);
787 }
788
789 /*
790 * Now that we know that we have a reference that can be converted to a
791 * symbol, change the name of the resource to a unique name.
792 */
793 AcpiDmUpdateResourceName (ResourceNode);
794
795 /* Get the full pathname to the parent buffer */
796
797 RequiredSize = AcpiNsBuildNormalizedPath (BufferNode, NULL, 0, FALSE);
798 if (!RequiredSize)
799 {
800 return (NULL);
801 }
802
803 Pathname = ACPI_ALLOCATE_ZEROED (RequiredSize + ACPI_PATH_SEGMENT_LENGTH);
804 if (!Pathname)
805 {
806 return (NULL);
807 }
808
809 (void) AcpiNsBuildNormalizedPath (BufferNode, Pathname,
810 RequiredSize, FALSE);
811
812 /*
813 * Create the full path to the resource and tag by:
814 * 1) Remove the buffer nameseg from the end of the pathname
815 * 2) Append the resource descriptor nameseg
816 * 3) Append a dot
817 * 4) Append the field tag nameseg
818 *
819 * Always using the full path is a bit brute force, the path can be
820 * often be optimized with carats (if the original buffer namepath is a
821 * single nameseg). This doesn't really matter, because these paths do not
822 * end up in the final compiled AML, it's just an appearance issue for the
823 * disassembled code.
824 */
825 PathnameEnd = Pathname + (RequiredSize - ACPI_NAMESEG_SIZE - 1);
826 ACPI_COPY_NAMESEG (PathnameEnd, ResourceNode->Name.Ascii);
827
828 PathnameEnd += ACPI_NAMESEG_SIZE;
829 *PathnameEnd = '.';
830
831 PathnameEnd++;
832 ACPI_COPY_NAMESEG (PathnameEnd, Tag);
833
834 /* Internalize the namepath to AML format */
835
836 Status = AcpiNsInternalizeName (Pathname, &InternalPath);
837 ACPI_FREE (Pathname);
838 if (ACPI_FAILURE (Status))
839 {
840 return (NULL);
841 }
842
843 /* Update the Op with the symbol */
844
845 AcpiPsInitOp (IndexOp, AML_INT_NAMEPATH_OP);
846 IndexOp->Common.Value.String = InternalPath;
847
848 /*
849 * We will need the tag later. Cheat by putting it in the Node field.
850 * Note, Tag is a const that is part of a lookup table.
851 */
852 IndexOp->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Tag);
853 return (InternalPath);
854 }
855
856
857 /*******************************************************************************
858 *
859 * FUNCTION: AcpiDmUpdateResourceName
860 *
861 * PARAMETERS: ResourceNode - Node for a resource descriptor
862 *
863 * RETURN: Stores new name in the ResourceNode
864 *
865 * DESCRIPTION: Create a new, unique name for a resource descriptor. Used by
866 * both the disassembly of the descriptor itself and any symbolic
867 * references to the descriptor. Ignored if a unique name has
868 * already been assigned to the resource.
869 *
870 * NOTE: Single threaded, suitable for applications only!
871 *
872 ******************************************************************************/
873
874 static void
AcpiDmUpdateResourceName(ACPI_NAMESPACE_NODE * ResourceNode)875 AcpiDmUpdateResourceName (
876 ACPI_NAMESPACE_NODE *ResourceNode)
877 {
878 char Name[ACPI_NAMESEG_SIZE];
879
880
881 /* Ignore if a unique name has already been assigned */
882
883 if (ResourceNode->Name.Integer != ACPI_DEFAULT_RESNAME)
884 {
885 return;
886 }
887
888 /* Generate a new ACPI name for the descriptor */
889
890 Name[0] = '_';
891 Name[1] = AcpiGbl_Prefix[AcpiGbl_NextPrefix];
892 Name[2] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 4);
893 Name[3] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 0);
894
895 /* Update globals for next name */
896
897 AcpiGbl_NextResourceId++;
898 if (AcpiGbl_NextResourceId >= 256)
899 {
900 AcpiGbl_NextResourceId = 0;
901 AcpiGbl_NextPrefix++;
902
903 if (AcpiGbl_NextPrefix > ACPI_NUM_RES_PREFIX)
904 {
905 AcpiGbl_NextPrefix = 0;
906 }
907 }
908
909 /* Change the resource descriptor name */
910
911 ResourceNode->Name.Integer = *ACPI_CAST_PTR (UINT32, &Name[0]);
912 }
913
914
915 /*******************************************************************************
916 *
917 * FUNCTION: AcpiDmGetResourceTag
918 *
919 * PARAMETERS: BitIndex - Index into the resource descriptor
920 * Resource - Pointer to the raw resource data
921 * ResourceIndex - Index corresponding to the resource type
922 *
923 * RETURN: Pointer to the resource tag (ACPI_NAME). NULL if no match.
924 *
925 * DESCRIPTION: Convert a BitIndex into a symbolic resource tag.
926 *
927 * Note: ResourceIndex should be previously validated and guaranteed to ve
928 * valid.
929 *
930 ******************************************************************************/
931
932 static char *
AcpiDmGetResourceTag(UINT32 BitIndex,AML_RESOURCE * Resource,UINT8 ResourceIndex)933 AcpiDmGetResourceTag (
934 UINT32 BitIndex,
935 AML_RESOURCE *Resource,
936 UINT8 ResourceIndex)
937 {
938 const ACPI_RESOURCE_TAG *TagList;
939 char *Tag = NULL;
940
941
942 /* Get the tag list for this resource descriptor type */
943
944 TagList = AcpiGbl_ResourceTags[ResourceIndex];
945
946 /*
947 * Handle descriptors that have multiple subtypes
948 */
949 switch (Resource->DescriptorType)
950 {
951 case ACPI_RESOURCE_NAME_ADDRESS16:
952 case ACPI_RESOURCE_NAME_ADDRESS32:
953 case ACPI_RESOURCE_NAME_ADDRESS64:
954 case ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64:
955 /*
956 * Subtype differentiation is the flags.
957 * Kindof brute force, but just blindly search for an index match
958 */
959 if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_MEMORY_RANGE)
960 {
961 Tag = AcpiDmSearchTagList (BitIndex, AcpiDmMemoryFlagTags);
962 }
963 else if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_IO_RANGE)
964 {
965 Tag = AcpiDmSearchTagList (BitIndex, AcpiDmIoFlagTags);
966 }
967
968 /* If we found a match, all done. Else, drop to normal search below */
969
970 if (Tag)
971 {
972 return (Tag);
973 }
974 break;
975
976 case ACPI_RESOURCE_NAME_GPIO:
977
978 /* GPIO connection has 2 subtypes: Interrupt and I/O */
979
980 if (Resource->Gpio.ConnectionType > AML_RESOURCE_MAX_GPIOTYPE)
981 {
982 return (NULL);
983 }
984
985 TagList = AcpiGbl_GpioResourceTags[Resource->Gpio.ConnectionType];
986 break;
987
988 case ACPI_RESOURCE_NAME_SERIAL_BUS:
989
990 /* SerialBus has 3 subtypes: I2C, SPI, and UART */
991
992 if ((Resource->CommonSerialBus.Type == 0) ||
993 (Resource->CommonSerialBus.Type > AML_RESOURCE_MAX_SERIALBUSTYPE))
994 {
995 return (NULL);
996 }
997
998 TagList = AcpiGbl_SerialResourceTags[Resource->CommonSerialBus.Type];
999 break;
1000
1001 default:
1002
1003 break;
1004 }
1005
1006 /* Search for a match against the BitIndex */
1007
1008 if (TagList)
1009 {
1010 Tag = AcpiDmSearchTagList (BitIndex, TagList);
1011 }
1012
1013 return (Tag);
1014 }
1015
1016
1017 /*******************************************************************************
1018 *
1019 * FUNCTION: AcpiDmSearchTagList
1020 *
1021 * PARAMETERS: BitIndex - Index into the resource descriptor
1022 * TagList - List to search
1023 *
1024 * RETURN: Pointer to a tag (ACPI_NAME). NULL if no match found.
1025 *
1026 * DESCRIPTION: Search a tag list for a match to the input BitIndex. Matches
1027 * a fixed offset to a symbolic resource tag name.
1028 *
1029 ******************************************************************************/
1030
1031 static char *
AcpiDmSearchTagList(UINT32 BitIndex,const ACPI_RESOURCE_TAG * TagList)1032 AcpiDmSearchTagList (
1033 UINT32 BitIndex,
1034 const ACPI_RESOURCE_TAG *TagList)
1035 {
1036
1037 /*
1038 * Walk the null-terminated tag list to find a matching bit offset.
1039 * We are looking for an exact match.
1040 */
1041 for ( ; TagList->Tag; TagList++)
1042 {
1043 if (BitIndex == TagList->BitIndex)
1044 {
1045 return (TagList->Tag);
1046 }
1047 }
1048
1049 /* A matching offset was not found */
1050
1051 return (NULL);
1052 }
1053
1054
1055 /*******************************************************************************
1056 *
1057 * FUNCTION: AcpiDmFindResources
1058 *
1059 * PARAMETERS: Root - Root of the parse tree
1060 *
1061 * RETURN: None
1062 *
1063 * DESCRIPTION: Add all ResourceTemplate declarations to the namespace. Each
1064 * resource descriptor in each template is given a node -- used
1065 * for later conversion of resource references to symbolic refs.
1066 *
1067 ******************************************************************************/
1068
1069 void
AcpiDmFindResources(ACPI_PARSE_OBJECT * Root)1070 AcpiDmFindResources (
1071 ACPI_PARSE_OBJECT *Root)
1072 {
1073 ACPI_PARSE_OBJECT *Op = Root;
1074 ACPI_PARSE_OBJECT *Parent;
1075
1076
1077 /* Walk the entire parse tree */
1078
1079 while (Op)
1080 {
1081 /* We are interested in Buffer() declarations */
1082
1083 if (Op->Common.AmlOpcode == AML_BUFFER_OP)
1084 {
1085 /* And only declarations of the form Name (XXXX, Buffer()... ) */
1086
1087 Parent = Op->Common.Parent;
1088 if (Parent->Common.AmlOpcode == AML_NAME_OP)
1089 {
1090 /*
1091 * If the buffer is a resource template, add the individual
1092 * resource descriptors to the namespace, as children of the
1093 * buffer node.
1094 */
1095 if (ACPI_SUCCESS (AcpiDmIsResourceTemplate (NULL, Op)))
1096 {
1097 Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE;
1098 AcpiDmAddResourcesToNamespace (Parent->Common.Node, Op);
1099 }
1100 }
1101 }
1102
1103 Op = AcpiPsGetDepthNext (Root, Op);
1104 }
1105 }
1106
1107
1108 /*******************************************************************************
1109 *
1110 * FUNCTION: AcpiDmAddResourcesToNamespace
1111 *
1112 * PARAMETERS: BufferNode - Node for the parent buffer
1113 * Op - Parse op for the buffer
1114 *
1115 * RETURN: None
1116 *
1117 * DESCRIPTION: Add an entire resource template to the namespace. Each
1118 * resource descriptor is added as a namespace node.
1119 *
1120 ******************************************************************************/
1121
1122 static void
AcpiDmAddResourcesToNamespace(ACPI_NAMESPACE_NODE * BufferNode,ACPI_PARSE_OBJECT * Op)1123 AcpiDmAddResourcesToNamespace (
1124 ACPI_NAMESPACE_NODE *BufferNode,
1125 ACPI_PARSE_OBJECT *Op)
1126 {
1127 ACPI_PARSE_OBJECT *NextOp;
1128
1129
1130 /* Get to the ByteData list */
1131
1132 NextOp = Op->Common.Value.Arg;
1133 NextOp = NextOp->Common.Next;
1134 if (!NextOp)
1135 {
1136 return;
1137 }
1138
1139 /* Set Node and Op to point to each other */
1140
1141 BufferNode->Op = Op;
1142 Op->Common.Node = BufferNode;
1143
1144 /*
1145 * Insert each resource into the namespace
1146 * NextOp contains the Aml pointer and the Aml length
1147 */
1148 AcpiUtWalkAmlResources (NULL, (UINT8 *) NextOp->Named.Data,
1149 (ACPI_SIZE) NextOp->Common.Value.Integer,
1150 AcpiDmAddResourceToNamespace, (void **) BufferNode);
1151 }
1152
1153
1154 /*******************************************************************************
1155 *
1156 * FUNCTION: AcpiDmAddResourceToNamespace
1157 *
1158 * PARAMETERS: ACPI_WALK_AML_CALLBACK
1159 * BufferNode - Node for the parent buffer
1160 *
1161 * RETURN: Status
1162 *
1163 * DESCRIPTION: Add one resource descriptor to the namespace as a child of the
1164 * parent buffer. The same name is used for each descriptor. This
1165 * is changed later to a unique name if the resource is actually
1166 * referenced by an AML operator.
1167 *
1168 ******************************************************************************/
1169
1170 static ACPI_STATUS
AcpiDmAddResourceToNamespace(UINT8 * Aml,UINT32 Length,UINT32 Offset,UINT8 ResourceIndex,void ** Context)1171 AcpiDmAddResourceToNamespace (
1172 UINT8 *Aml,
1173 UINT32 Length,
1174 UINT32 Offset,
1175 UINT8 ResourceIndex,
1176 void **Context)
1177 {
1178 ACPI_STATUS Status;
1179 ACPI_GENERIC_STATE ScopeInfo;
1180 ACPI_NAMESPACE_NODE *Node;
1181
1182
1183 /* TBD: Don't need to add descriptors that have no tags defined? */
1184
1185 /* Add the resource to the namespace, as child of the buffer */
1186
1187 ScopeInfo.Scope.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Context);
1188 Status = AcpiNsLookup (&ScopeInfo, "_TMP", ACPI_TYPE_LOCAL_RESOURCE,
1189 ACPI_IMODE_LOAD_PASS2,
1190 ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_PREFIX_IS_SCOPE,
1191 NULL, &Node);
1192 if (ACPI_FAILURE (Status))
1193 {
1194 return (AE_OK);
1195 }
1196
1197 /* Set the name to the default, changed later if resource is referenced */
1198
1199 Node->Name.Integer = ACPI_DEFAULT_RESNAME;
1200
1201 /* Save the offset of the descriptor (within the original buffer) */
1202
1203 Node->Value = Offset;
1204 Node->Length = Length;
1205 return (AE_OK);
1206 }
1207