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 - 2023, 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 "acpi.h"
153 #include "accommon.h"
154 #include "acparser.h"
155 #include "acdisasm.h"
156 #include "acnamesp.h"
157 #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 AcpiDmCsi2SerialBusTags[] = /* ACPI 6.4 */
388 {
389 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE},
390 {( 7 * 8) + 0, ACPI_RESTAG_PHYTYPE},
391 {( 7 * 8) + 2, ACPI_RESTAG_LOCALPORT},
392 {0, NULL}
393 };
394
395 static const ACPI_RESOURCE_TAG AcpiDmI2cSerialBusTags[] =
396 {
397 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE},
398 {( 6 * 8) + 2, ACPI_RESTAG_INTERRUPTSHARE}, /* V2 - ACPI 6.0 */
399 {( 7 * 8) + 0, ACPI_RESTAG_MODE},
400 {(12 * 8), ACPI_RESTAG_SPEED},
401 {(16 * 8), ACPI_RESTAG_ADDRESS},
402 {0, NULL}
403 };
404
405 static const ACPI_RESOURCE_TAG AcpiDmSpiSerialBusTags[] =
406 {
407 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE},
408 {( 6 * 8) + 2, ACPI_RESTAG_INTERRUPTSHARE}, /* V2 - ACPI 6.0 */
409 {( 7 * 8) + 0, ACPI_RESTAG_MODE},
410 {( 7 * 8) + 1, ACPI_RESTAG_DEVICEPOLARITY},
411 {(12 * 8), ACPI_RESTAG_SPEED},
412 {(16 * 8), ACPI_RESTAG_LENGTH},
413 {(17 * 8), ACPI_RESTAG_PHASE},
414 {(18 * 8), ACPI_RESTAG_POLARITY},
415 {(19 * 8), ACPI_RESTAG_ADDRESS},
416 {0, NULL}
417 };
418
419 static const ACPI_RESOURCE_TAG AcpiDmUartSerialBusTags[] =
420 {
421 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE}, /* Note: not part of original macro */
422 {( 6 * 8) + 2, ACPI_RESTAG_INTERRUPTSHARE}, /* V2 - ACPI 6.0 */
423 {( 7 * 8) + 0, ACPI_RESTAG_FLOWCONTROL},
424 {( 7 * 8) + 2, ACPI_RESTAG_STOPBITS},
425 {( 7 * 8) + 4, ACPI_RESTAG_LENGTH},
426 {( 7 * 8) + 7, ACPI_RESTAG_ENDIANNESS},
427 {(12 * 8), ACPI_RESTAG_SPEED},
428 {(16 * 8), ACPI_RESTAG_LENGTH_RX},
429 {(18 * 8), ACPI_RESTAG_LENGTH_TX},
430 {(20 * 8), ACPI_RESTAG_PARITY},
431 {(21 * 8), ACPI_RESTAG_LINE},
432 {0, NULL}
433 };
434
435
436 /* Subtype tables for PinFunction descriptor */
437
438 static const ACPI_RESOURCE_TAG AcpiDmPinFunctionTags[] =
439 {
440 {( 4 * 8), ACPI_RESTAG_INTERRUPTSHARE},
441 {( 6 * 8), ACPI_RESTAG_PINCONFIG},
442 {( 7 * 8), ACPI_RESTAG_FUNCTION},
443 {0, NULL}
444 };
445
446 /* Subtype tables for PinConfig descriptor */
447
448 static const ACPI_RESOURCE_TAG AcpiDmPinConfigTags[] =
449 {
450 {( 4 * 8), ACPI_RESTAG_INTERRUPTSHARE},
451 {( 6 * 8), ACPI_RESTAG_PINCONFIG_TYPE},
452 {( 7 * 8), ACPI_RESTAG_PINCONFIG_VALUE},
453 {0, NULL}
454 };
455
456 /* Subtype tables for PinGroupFunction descriptor */
457
458 static const ACPI_RESOURCE_TAG AcpiDmPinGroupFunctionTags[] =
459 {
460 {( 6 * 8), ACPI_RESTAG_FUNCTION},
461 {0, NULL}
462 };
463
464 /* Subtype tables for Address descriptor type-specific flags */
465
466 static const ACPI_RESOURCE_TAG AcpiDmMemoryFlagTags[] =
467 {
468 {( 5 * 8) + 0, ACPI_RESTAG_READWRITETYPE},
469 {( 5 * 8) + 1, ACPI_RESTAG_MEMTYPE},
470 {( 5 * 8) + 3, ACPI_RESTAG_MEMATTRIBUTES},
471 {( 5 * 8) + 5, ACPI_RESTAG_TYPE},
472 {0, NULL}
473 };
474
475 static const ACPI_RESOURCE_TAG AcpiDmIoFlagTags[] =
476 {
477 {( 5 * 8) + 0, ACPI_RESTAG_RANGETYPE},
478 {( 5 * 8) + 4, ACPI_RESTAG_TYPE},
479 {( 5 * 8) + 5, ACPI_RESTAG_TRANSTYPE},
480 {0, NULL}
481 };
482
483 /* Subtype tables for ClockInput descriptor */
484
485 static const ACPI_RESOURCE_TAG AcpiDmClockInputTags[] =
486 {
487 {( 6 * 8), ACPI_RESTAG_FQD},
488 {( 8 * 8), ACPI_RESTAG_FQN},
489 {0, NULL}
490 };
491
492 /*
493 * Dispatch table used to obtain the correct tag table for a descriptor.
494 *
495 * A NULL in this table means one of three things:
496 * 1) The descriptor ID is reserved and invalid
497 * 2) The descriptor has no tags associated with it
498 * 3) The descriptor has subtypes and a separate table will be used.
499 */
500 static const ACPI_RESOURCE_TAG *AcpiGbl_ResourceTags[] =
501 {
502 /* Small descriptors */
503
504 NULL, /* 0x00, Reserved */
505 NULL, /* 0x01, Reserved */
506 NULL, /* 0x02, Reserved */
507 NULL, /* 0x03, Reserved */
508 AcpiDmIrqTags, /* 0x04, ACPI_RESOURCE_NAME_IRQ_FORMAT */
509 AcpiDmDmaTags, /* 0x05, ACPI_RESOURCE_NAME_DMA_FORMAT */
510 NULL, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */
511 NULL, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */
512 AcpiDmIoTags, /* 0x08, ACPI_RESOURCE_NAME_IO_PORT */
513 AcpiDmFixedIoTags, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO_PORT */
514 AcpiDmFixedDmaTags, /* 0x0A, ACPI_RESOURCE_NAME_FIXED_DMA */
515 NULL, /* 0x0B, Reserved */
516 NULL, /* 0x0C, Reserved */
517 NULL, /* 0x0D, Reserved */
518 NULL, /* 0x0E, ACPI_RESOURCE_NAME_SMALL_VENDOR */
519 NULL, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG (not used) */
520
521 /* Large descriptors */
522
523 NULL, /* 0x00, Reserved */
524 AcpiDmMemory24Tags, /* 0x01, ACPI_RESOURCE_NAME_MEMORY_24 */
525 AcpiDmRegisterTags, /* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */
526 NULL, /* 0x03, Reserved */
527 NULL, /* 0x04, ACPI_RESOURCE_NAME_LARGE_VENDOR */
528 AcpiDmMemory32Tags, /* 0x05, ACPI_RESOURCE_NAME_MEMORY_32 */
529 AcpiDmFixedMemory32Tags, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY_32 */
530 AcpiDmAddress32Tags, /* 0x07, ACPI_RESOURCE_NAME_DWORD_ADDRESS_SPACE */
531 AcpiDmAddress16Tags, /* 0x08, ACPI_RESOURCE_NAME_WORD_ADDRESS_SPACE */
532 AcpiDmInterruptTags, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_XRUPT */
533 AcpiDmAddress64Tags, /* 0x0A, ACPI_RESOURCE_NAME_QWORD_ADDRESS_SPACE */
534 AcpiDmExtendedAddressTags, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS_SPACE */
535 NULL, /* 0x0C, ACPI_RESOURCE_NAME_GPIO - Use Subtype table below */
536 AcpiDmPinFunctionTags, /* 0x0D, ACPI_RESOURCE_NAME_PIN_FUNCTION */
537 NULL, /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS - Use Subtype table below */
538 AcpiDmPinConfigTags, /* 0x0F, ACPI_RESOURCE_NAME_PIN_CONFIG */
539 NULL, /* 0x10, ACPI_RESOURCE_NAME_PIN_GROUP */
540 AcpiDmPinGroupFunctionTags, /* 0x11, ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION */
541 AcpiDmPinConfigTags, /* 0x12, ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG - Same as PinConfig */
542 AcpiDmClockInputTags, /* 0x13, ACPI_RESOURCE_NAME_CLOCK_INPUT */
543 };
544
545 /* GPIO Subtypes */
546
547 static const ACPI_RESOURCE_TAG *AcpiGbl_GpioResourceTags[] =
548 {
549 AcpiDmGpioIntTags, /* 0x00 Interrupt Connection */
550 AcpiDmGpioIoTags /* 0x01 I/O Connection */
551 };
552
553 /* Serial Bus Subtypes */
554
555 static const ACPI_RESOURCE_TAG *AcpiGbl_SerialResourceTags[] =
556 {
557 NULL, /* 0x00 Reserved */
558 AcpiDmI2cSerialBusTags, /* 0x01 I2C SerialBus */
559 AcpiDmSpiSerialBusTags, /* 0x02 SPI SerialBus */
560 AcpiDmUartSerialBusTags, /* 0x03 UART SerialBus */
561 AcpiDmCsi2SerialBusTags /* 0x04 CSI2 SerialBus */
562 };
563
564 /*
565 * Globals used to generate unique resource descriptor names. We use names that
566 * start with underscore and a prefix letter that is not used by other ACPI
567 * reserved names. To this, we append hex 0x00 through 0xFF. These 5 prefixes
568 * allow for 5*256 = 1280 unique names, probably sufficient for any single ASL
569 * file. If this becomes too small, we can use alpha+numerals for a total
570 * of 5*36*36 = 6480.
571 */
572 #define ACPI_NUM_RES_PREFIX 5
573
574 static UINT32 AcpiGbl_NextResourceId = 0;
575 static UINT8 AcpiGbl_NextPrefix = 0;
576 static char AcpiGbl_Prefix[ACPI_NUM_RES_PREFIX] =
577 {'Y','Z','J','K','X'};
578
579
580 /*******************************************************************************
581 *
582 * FUNCTION: AcpiDmCheckResourceReference
583 *
584 * PARAMETERS: Op - Parse Op for the AML opcode
585 * WalkState - Current walk state (with valid scope)
586 *
587 * RETURN: None
588 *
589 * DESCRIPTION: Convert a reference to a resource descriptor to a symbolic
590 * reference if possible
591 *
592 * NOTE: Bit index is used to transparently handle both resource bit
593 * fields and byte fields.
594 *
595 ******************************************************************************/
596
597 void
AcpiDmCheckResourceReference(ACPI_PARSE_OBJECT * Op,ACPI_WALK_STATE * WalkState)598 AcpiDmCheckResourceReference (
599 ACPI_PARSE_OBJECT *Op,
600 ACPI_WALK_STATE *WalkState)
601 {
602 ACPI_STATUS Status;
603 ACPI_PARSE_OBJECT *BufferNameOp;
604 ACPI_PARSE_OBJECT *IndexOp;
605 ACPI_NAMESPACE_NODE *BufferNode;
606 ACPI_NAMESPACE_NODE *ResourceNode;
607 const ACPI_OPCODE_INFO *OpInfo;
608 UINT32 BitIndex;
609
610
611 /* We are only interested in the CreateXxxxField opcodes */
612
613 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
614 if (OpInfo->Type != AML_TYPE_CREATE_FIELD)
615 {
616 return;
617 }
618
619 /* Get the buffer term operand */
620
621 BufferNameOp = AcpiPsGetDepthNext (NULL, Op);
622
623 /* Must be a named buffer, not an arg or local or method call */
624
625 if (BufferNameOp->Common.AmlOpcode != AML_INT_NAMEPATH_OP)
626 {
627 return;
628 }
629
630 /* Get the Index term, must be an integer constant to convert */
631
632 IndexOp = BufferNameOp->Common.Next;
633
634 /* Major cheat: The Node field is also used for the Tag ptr. Clear it now */
635
636 IndexOp->Common.Node = NULL;
637
638 OpInfo = AcpiPsGetOpcodeInfo (IndexOp->Common.AmlOpcode);
639 if (OpInfo->ObjectType != ACPI_TYPE_INTEGER)
640 {
641 return;
642 }
643
644 /* Get the bit offset of the descriptor within the buffer */
645
646 if ((Op->Common.AmlOpcode == AML_CREATE_BIT_FIELD_OP) ||
647 (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP))
648 {
649 /* Index operand is a bit offset */
650
651 BitIndex = (UINT32) IndexOp->Common.Value.Integer;
652 }
653 else
654 {
655 /* Index operand is a byte offset, convert to bits */
656
657 BitIndex = (UINT32) ACPI_MUL_8 (IndexOp->Common.Value.Integer);
658 }
659
660 /* Lookup the buffer in the namespace */
661
662 Status = AcpiNsLookup (WalkState->ScopeInfo,
663 BufferNameOp->Common.Value.String, ACPI_TYPE_BUFFER,
664 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState,
665 &BufferNode);
666 if (ACPI_FAILURE (Status))
667 {
668 return;
669 }
670
671 /* Validate object type, we must have a buffer */
672
673 if (BufferNode->Type != ACPI_TYPE_BUFFER)
674 {
675 return;
676 }
677
678 /* Find the resource descriptor node corresponding to the index */
679
680 ResourceNode = AcpiDmGetResourceNode (BufferNode, BitIndex);
681 if (!ResourceNode)
682 {
683 return;
684 }
685
686 /* Translate the Index to a resource tag pathname */
687
688 AcpiGetTagPathname (IndexOp, BufferNode, ResourceNode, BitIndex);
689 }
690
691
692 /*******************************************************************************
693 *
694 * FUNCTION: AcpiDmGetResourceNode
695 *
696 * PARAMETERS: BufferNode - Node for the parent buffer
697 * BitIndex - Index into the resource descriptor
698 *
699 * RETURN: Namespace node for the resource descriptor. NULL if not found
700 *
701 * DESCRIPTION: Find a resource descriptor that corresponds to the bit index
702 *
703 ******************************************************************************/
704
705 static ACPI_NAMESPACE_NODE *
AcpiDmGetResourceNode(ACPI_NAMESPACE_NODE * BufferNode,UINT32 BitIndex)706 AcpiDmGetResourceNode (
707 ACPI_NAMESPACE_NODE *BufferNode,
708 UINT32 BitIndex)
709 {
710 ACPI_NAMESPACE_NODE *Node;
711 UINT32 ByteIndex = ACPI_DIV_8 (BitIndex);
712
713
714 /*
715 * Child list contains an entry for each resource descriptor. Find
716 * the descriptor that corresponds to the Index.
717 *
718 * If there are no children, this is not a resource template
719 */
720 Node = BufferNode->Child;
721 while (Node)
722 {
723 /*
724 * Check if the Index falls within this resource.
725 *
726 * Value contains the resource offset, Object contains the resource
727 * length (both in bytes)
728 */
729 if ((ByteIndex >= Node->Value) &&
730 (ByteIndex < (Node->Value + Node->Length)))
731 {
732 return (Node);
733 }
734
735 Node = Node->Peer;
736 }
737
738 return (NULL);
739 }
740
741
742 /*******************************************************************************
743 *
744 * FUNCTION: AcpiGetTagPathname
745 *
746 * PARAMETERS: BufferNode - Node for the parent buffer
747 * ResourceNode - Node for a resource descriptor
748 * BitIndex - Index into the resource descriptor
749 *
750 * RETURN: Full pathname for a resource tag. NULL if no match.
751 * Path is returned in AML (packed) format.
752 *
753 * DESCRIPTION: Convert a BitIndex into a symbolic resource tag (full pathname)
754 *
755 ******************************************************************************/
756
757 static char *
AcpiGetTagPathname(ACPI_PARSE_OBJECT * IndexOp,ACPI_NAMESPACE_NODE * BufferNode,ACPI_NAMESPACE_NODE * ResourceNode,UINT32 BitIndex)758 AcpiGetTagPathname (
759 ACPI_PARSE_OBJECT *IndexOp,
760 ACPI_NAMESPACE_NODE *BufferNode,
761 ACPI_NAMESPACE_NODE *ResourceNode,
762 UINT32 BitIndex)
763 {
764 ACPI_STATUS Status;
765 UINT32 ResourceBitIndex;
766 UINT8 ResourceTableIndex;
767 ACPI_SIZE RequiredSize;
768 char *Pathname;
769 char *PathnameEnd;
770 AML_RESOURCE *Aml;
771 ACPI_PARSE_OBJECT *Op;
772 char *InternalPath;
773 char *Tag;
774
775
776 /* Get the Op that contains the actual buffer data */
777
778 Op = BufferNode->Op->Common.Value.Arg;
779 Op = Op->Common.Next;
780 if (!Op)
781 {
782 return (NULL);
783 }
784
785 /* Get the individual resource descriptor and validate it */
786
787 Aml = ACPI_CAST_PTR (
788 AML_RESOURCE, &Op->Named.Data[ResourceNode->Value]);
789
790 Status = AcpiUtValidateResource (NULL, Aml, &ResourceTableIndex);
791 if (ACPI_FAILURE (Status))
792 {
793 return (NULL);
794 }
795
796 /* Get offset into this descriptor (from offset into entire buffer) */
797
798 ResourceBitIndex = BitIndex - ACPI_MUL_8 (ResourceNode->Value);
799
800 /* Get the tag associated with this resource descriptor and offset */
801
802 Tag = AcpiDmGetResourceTag (ResourceBitIndex, Aml, ResourceTableIndex);
803 if (!Tag)
804 {
805 return (NULL);
806 }
807
808 /*
809 * Now that we know that we have a reference that can be converted to a
810 * symbol, change the name of the resource to a unique name.
811 */
812 AcpiDmUpdateResourceName (ResourceNode);
813
814 /* Get the full pathname to the parent buffer */
815
816 RequiredSize = AcpiNsBuildNormalizedPath (BufferNode, NULL, 0, FALSE);
817 if (!RequiredSize)
818 {
819 return (NULL);
820 }
821
822 Pathname = ACPI_ALLOCATE_ZEROED (RequiredSize + ACPI_PATH_SEGMENT_LENGTH);
823 if (!Pathname)
824 {
825 return (NULL);
826 }
827
828 (void) AcpiNsBuildNormalizedPath (BufferNode, Pathname,
829 RequiredSize, FALSE);
830
831 /*
832 * Create the full path to the resource and tag by:
833 * 1) Remove the buffer nameseg from the end of the pathname
834 * 2) Append the resource descriptor nameseg
835 * 3) Append a dot
836 * 4) Append the field tag nameseg
837 *
838 * Always using the full path is a bit brute force, the path can be
839 * often be optimized with carats (if the original buffer namepath is a
840 * single nameseg). This doesn't really matter, because these paths do not
841 * end up in the final compiled AML, it's just an appearance issue for the
842 * disassembled code.
843 */
844 PathnameEnd = Pathname + (RequiredSize - ACPI_NAMESEG_SIZE - 1);
845 ACPI_COPY_NAMESEG (PathnameEnd, ResourceNode->Name.Ascii);
846
847 PathnameEnd += ACPI_NAMESEG_SIZE;
848 *PathnameEnd = '.';
849
850 PathnameEnd++;
851 ACPI_COPY_NAMESEG (PathnameEnd, Tag);
852
853 /* Internalize the namepath to AML format */
854
855 Status = AcpiNsInternalizeName (Pathname, &InternalPath);
856 ACPI_FREE (Pathname);
857 if (ACPI_FAILURE (Status))
858 {
859 return (NULL);
860 }
861
862 /* Update the Op with the symbol */
863
864 AcpiPsInitOp (IndexOp, AML_INT_NAMEPATH_OP);
865 IndexOp->Common.Value.String = InternalPath;
866
867 /*
868 * We will need the tag later. Cheat by putting it in the Node field.
869 * Note, Tag is a const that is part of a lookup table.
870 */
871 IndexOp->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Tag);
872 return (InternalPath);
873 }
874
875
876 /*******************************************************************************
877 *
878 * FUNCTION: AcpiDmUpdateResourceName
879 *
880 * PARAMETERS: ResourceNode - Node for a resource descriptor
881 *
882 * RETURN: Stores new name in the ResourceNode
883 *
884 * DESCRIPTION: Create a new, unique name for a resource descriptor. Used by
885 * both the disassembly of the descriptor itself and any symbolic
886 * references to the descriptor. Ignored if a unique name has
887 * already been assigned to the resource.
888 *
889 * NOTE: Single threaded, suitable for applications only!
890 *
891 ******************************************************************************/
892
893 static void
AcpiDmUpdateResourceName(ACPI_NAMESPACE_NODE * ResourceNode)894 AcpiDmUpdateResourceName (
895 ACPI_NAMESPACE_NODE *ResourceNode)
896 {
897 char Name[ACPI_NAMESEG_SIZE];
898
899
900 /* Ignore if a unique name has already been assigned */
901
902 if (ResourceNode->Name.Integer != ACPI_DEFAULT_RESNAME)
903 {
904 return;
905 }
906
907 /* Generate a new ACPI name for the descriptor */
908
909 Name[0] = '_';
910 Name[1] = AcpiGbl_Prefix[AcpiGbl_NextPrefix];
911 Name[2] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 4);
912 Name[3] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 0);
913
914 /* Update globals for next name */
915
916 AcpiGbl_NextResourceId++;
917 if (AcpiGbl_NextResourceId >= 256)
918 {
919 AcpiGbl_NextResourceId = 0;
920 AcpiGbl_NextPrefix++;
921
922 if (AcpiGbl_NextPrefix > ACPI_NUM_RES_PREFIX)
923 {
924 AcpiGbl_NextPrefix = 0;
925 }
926 }
927
928 /* Change the resource descriptor name */
929
930 ResourceNode->Name.Integer = *ACPI_CAST_PTR (UINT32, &Name[0]);
931 }
932
933
934 /*******************************************************************************
935 *
936 * FUNCTION: AcpiDmGetResourceTag
937 *
938 * PARAMETERS: BitIndex - Index into the resource descriptor
939 * Resource - Pointer to the raw resource data
940 * ResourceIndex - Index corresponding to the resource type
941 *
942 * RETURN: Pointer to the resource tag (ACPI_NAME). NULL if no match.
943 *
944 * DESCRIPTION: Convert a BitIndex into a symbolic resource tag.
945 *
946 * Note: ResourceIndex should be previously validated and guaranteed to ve
947 * valid.
948 *
949 ******************************************************************************/
950
951 static char *
AcpiDmGetResourceTag(UINT32 BitIndex,AML_RESOURCE * Resource,UINT8 ResourceIndex)952 AcpiDmGetResourceTag (
953 UINT32 BitIndex,
954 AML_RESOURCE *Resource,
955 UINT8 ResourceIndex)
956 {
957 const ACPI_RESOURCE_TAG *TagList;
958 char *Tag = NULL;
959
960
961 /* Get the tag list for this resource descriptor type */
962
963 TagList = AcpiGbl_ResourceTags[ResourceIndex];
964
965 /*
966 * Handle descriptors that have multiple subtypes
967 */
968 switch (Resource->DescriptorType)
969 {
970 case ACPI_RESOURCE_NAME_ADDRESS16:
971 case ACPI_RESOURCE_NAME_ADDRESS32:
972 case ACPI_RESOURCE_NAME_ADDRESS64:
973 case ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64:
974 /*
975 * Subtype differentiation is the flags.
976 * Kindof brute force, but just blindly search for an index match
977 */
978 if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_MEMORY_RANGE)
979 {
980 Tag = AcpiDmSearchTagList (BitIndex, AcpiDmMemoryFlagTags);
981 }
982 else if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_IO_RANGE)
983 {
984 Tag = AcpiDmSearchTagList (BitIndex, AcpiDmIoFlagTags);
985 }
986
987 /* If we found a match, all done. Else, drop to normal search below */
988
989 if (Tag)
990 {
991 return (Tag);
992 }
993 break;
994
995 case ACPI_RESOURCE_NAME_GPIO:
996
997 /* GPIO connection has 2 subtypes: Interrupt and I/O */
998
999 if (Resource->Gpio.ConnectionType > AML_RESOURCE_MAX_GPIOTYPE)
1000 {
1001 return (NULL);
1002 }
1003
1004 TagList = AcpiGbl_GpioResourceTags[Resource->Gpio.ConnectionType];
1005 break;
1006
1007 case ACPI_RESOURCE_NAME_SERIAL_BUS:
1008
1009 /* SerialBus has 4 subtypes: I2C, SPI, UART, and CSI2 */
1010
1011 if ((Resource->CommonSerialBus.Type == 0) ||
1012 (Resource->CommonSerialBus.Type > AML_RESOURCE_MAX_SERIALBUSTYPE))
1013 {
1014 return (NULL);
1015 }
1016
1017 TagList = AcpiGbl_SerialResourceTags[Resource->CommonSerialBus.Type];
1018 break;
1019
1020 default:
1021
1022 break;
1023 }
1024
1025 /* Search for a match against the BitIndex */
1026
1027 if (TagList)
1028 {
1029 Tag = AcpiDmSearchTagList (BitIndex, TagList);
1030 }
1031
1032 return (Tag);
1033 }
1034
1035
1036 /*******************************************************************************
1037 *
1038 * FUNCTION: AcpiDmSearchTagList
1039 *
1040 * PARAMETERS: BitIndex - Index into the resource descriptor
1041 * TagList - List to search
1042 *
1043 * RETURN: Pointer to a tag (ACPI_NAME). NULL if no match found.
1044 *
1045 * DESCRIPTION: Search a tag list for a match to the input BitIndex. Matches
1046 * a fixed offset to a symbolic resource tag name.
1047 *
1048 ******************************************************************************/
1049
1050 static char *
AcpiDmSearchTagList(UINT32 BitIndex,const ACPI_RESOURCE_TAG * TagList)1051 AcpiDmSearchTagList (
1052 UINT32 BitIndex,
1053 const ACPI_RESOURCE_TAG *TagList)
1054 {
1055
1056 /*
1057 * Walk the null-terminated tag list to find a matching bit offset.
1058 * We are looking for an exact match.
1059 */
1060 for ( ; TagList->Tag; TagList++)
1061 {
1062 if (BitIndex == TagList->BitIndex)
1063 {
1064 return (TagList->Tag);
1065 }
1066 }
1067
1068 /* A matching offset was not found */
1069
1070 return (NULL);
1071 }
1072
1073
1074 /*******************************************************************************
1075 *
1076 * FUNCTION: AcpiDmFindResources
1077 *
1078 * PARAMETERS: Root - Root of the parse tree
1079 *
1080 * RETURN: None
1081 *
1082 * DESCRIPTION: Add all ResourceTemplate declarations to the namespace. Each
1083 * resource descriptor in each template is given a node -- used
1084 * for later conversion of resource references to symbolic refs.
1085 *
1086 ******************************************************************************/
1087
1088 void
AcpiDmFindResources(ACPI_PARSE_OBJECT * Root)1089 AcpiDmFindResources (
1090 ACPI_PARSE_OBJECT *Root)
1091 {
1092 ACPI_PARSE_OBJECT *Op = Root;
1093 ACPI_PARSE_OBJECT *Parent;
1094
1095
1096 /* Walk the entire parse tree */
1097
1098 while (Op)
1099 {
1100 /* We are interested in Buffer() declarations */
1101
1102 if (Op->Common.AmlOpcode == AML_BUFFER_OP)
1103 {
1104 /* And only declarations of the form Name (XXXX, Buffer()... ) */
1105
1106 Parent = Op->Common.Parent;
1107 if (Parent->Common.AmlOpcode == AML_NAME_OP)
1108 {
1109 /*
1110 * If the buffer is a resource template, add the individual
1111 * resource descriptors to the namespace, as children of the
1112 * buffer node.
1113 */
1114 if (ACPI_SUCCESS (AcpiDmIsResourceTemplate (NULL, Op)))
1115 {
1116 Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE;
1117 AcpiDmAddResourcesToNamespace (Parent->Common.Node, Op);
1118 }
1119 }
1120 }
1121
1122 Op = AcpiPsGetDepthNext (Root, Op);
1123 }
1124 }
1125
1126
1127 /*******************************************************************************
1128 *
1129 * FUNCTION: AcpiDmAddResourcesToNamespace
1130 *
1131 * PARAMETERS: BufferNode - Node for the parent buffer
1132 * Op - Parse op for the buffer
1133 *
1134 * RETURN: None
1135 *
1136 * DESCRIPTION: Add an entire resource template to the namespace. Each
1137 * resource descriptor is added as a namespace node.
1138 *
1139 ******************************************************************************/
1140
1141 static void
AcpiDmAddResourcesToNamespace(ACPI_NAMESPACE_NODE * BufferNode,ACPI_PARSE_OBJECT * Op)1142 AcpiDmAddResourcesToNamespace (
1143 ACPI_NAMESPACE_NODE *BufferNode,
1144 ACPI_PARSE_OBJECT *Op)
1145 {
1146 ACPI_PARSE_OBJECT *NextOp;
1147
1148
1149 /* Get to the ByteData list */
1150
1151 NextOp = Op->Common.Value.Arg;
1152 NextOp = NextOp->Common.Next;
1153 if (!NextOp)
1154 {
1155 return;
1156 }
1157
1158 /* Set Node and Op to point to each other */
1159
1160 BufferNode->Op = Op;
1161 Op->Common.Node = BufferNode;
1162
1163 /*
1164 * Insert each resource into the namespace
1165 * NextOp contains the Aml pointer and the Aml length
1166 */
1167 AcpiUtWalkAmlResources (NULL, (UINT8 *) NextOp->Named.Data,
1168 (ACPI_SIZE) NextOp->Common.Value.Integer,
1169 AcpiDmAddResourceToNamespace, (void **) BufferNode);
1170 }
1171
1172
1173 /*******************************************************************************
1174 *
1175 * FUNCTION: AcpiDmAddResourceToNamespace
1176 *
1177 * PARAMETERS: ACPI_WALK_AML_CALLBACK
1178 * BufferNode - Node for the parent buffer
1179 *
1180 * RETURN: Status
1181 *
1182 * DESCRIPTION: Add one resource descriptor to the namespace as a child of the
1183 * parent buffer. The same name is used for each descriptor. This
1184 * is changed later to a unique name if the resource is actually
1185 * referenced by an AML operator.
1186 *
1187 ******************************************************************************/
1188
1189 static ACPI_STATUS
AcpiDmAddResourceToNamespace(UINT8 * Aml,UINT32 Length,UINT32 Offset,UINT8 ResourceIndex,void ** Context)1190 AcpiDmAddResourceToNamespace (
1191 UINT8 *Aml,
1192 UINT32 Length,
1193 UINT32 Offset,
1194 UINT8 ResourceIndex,
1195 void **Context)
1196 {
1197 ACPI_STATUS Status;
1198 ACPI_GENERIC_STATE ScopeInfo;
1199 ACPI_NAMESPACE_NODE *Node;
1200
1201
1202 /* TBD: Don't need to add descriptors that have no tags defined? */
1203
1204 /* Add the resource to the namespace, as child of the buffer */
1205
1206 ScopeInfo.Scope.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Context);
1207 Status = AcpiNsLookup (&ScopeInfo, "_TMP", ACPI_TYPE_LOCAL_RESOURCE,
1208 ACPI_IMODE_LOAD_PASS2,
1209 ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_PREFIX_IS_SCOPE,
1210 NULL, &Node);
1211 if (ACPI_FAILURE (Status))
1212 {
1213 return (AE_OK);
1214 }
1215
1216 /* Set the name to the default, changed later if resource is referenced */
1217
1218 Node->Name.Integer = ACPI_DEFAULT_RESNAME;
1219
1220 /* Save the offset of the descriptor (within the original buffer) */
1221
1222 Node->Value = Offset;
1223 Node->Length = Length;
1224 return (AE_OK);
1225 }
1226
