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 - 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 * 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 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 AML_RESOURCE *Aml;
751 ACPI_PARSE_OBJECT *Op;
752 char *InternalPath;
753 char *Tag;
754
755
756 /* Get the Op that contains the actual buffer data */
757
758 Op = BufferNode->Op->Common.Value.Arg;
759 Op = Op->Common.Next;
760 if (!Op)
761 {
762 return (NULL);
763 }
764
765 /* Get the individual resource descriptor and validate it */
766
767 Aml = ACPI_CAST_PTR (
768 AML_RESOURCE, &Op->Named.Data[ResourceNode->Value]);
769
770 Status = AcpiUtValidateResource (NULL, Aml, &ResourceTableIndex);
771 if (ACPI_FAILURE (Status))
772 {
773 return (NULL);
774 }
775
776 /* Get offset into this descriptor (from offset into entire buffer) */
777
778 ResourceBitIndex = BitIndex - ACPI_MUL_8 (ResourceNode->Value);
779
780 /* Get the tag associated with this resource descriptor and offset */
781
782 Tag = AcpiDmGetResourceTag (ResourceBitIndex, Aml, ResourceTableIndex);
783 if (!Tag)
784 {
785 return (NULL);
786 }
787
788 /*
789 * Now that we know that we have a reference that can be converted to a
790 * symbol, change the name of the resource to a unique name.
791 */
792 AcpiDmUpdateResourceName (ResourceNode);
793
794 /* Get the full pathname to the parent buffer */
795
796 RequiredSize = AcpiNsBuildNormalizedPath (BufferNode, NULL, 0, FALSE);
797 if (!RequiredSize)
798 {
799 return (NULL);
800 }
801
802 Pathname = ACPI_ALLOCATE_ZEROED (RequiredSize + ACPI_PATH_SEGMENT_LENGTH);
803 if (!Pathname)
804 {
805 return (NULL);
806 }
807
808 (void) AcpiNsBuildNormalizedPath (BufferNode, Pathname,
809 RequiredSize, FALSE);
810
811 /*
812 * Create the full path to the resource and tag by: remove the buffer name,
813 * append the resource descriptor name, append a dot, append the tag name.
814 *
815 * TBD: Always using the full path is a bit brute force, the path can be
816 * often be optimized with carats (if the original buffer namepath is a
817 * single nameseg). This doesn't really matter, because these paths do not
818 * end up in the final compiled AML, it's just an appearance issue for the
819 * disassembled code.
820 */
821 Pathname[strlen (Pathname) - ACPI_NAME_SIZE] = 0;
822 strncat (Pathname, ResourceNode->Name.Ascii, ACPI_NAME_SIZE);
823 strcat (Pathname, ".");
824 strncat (Pathname, Tag, ACPI_NAME_SIZE);
825
826 /* Internalize the namepath to AML format */
827
828 AcpiNsInternalizeName (Pathname, &InternalPath);
829 ACPI_FREE (Pathname);
830
831 /* Update the Op with the symbol */
832
833 AcpiPsInitOp (IndexOp, AML_INT_NAMEPATH_OP);
834 IndexOp->Common.Value.String = InternalPath;
835
836 /*
837 * We will need the tag later. Cheat by putting it in the Node field.
838 * Note, Tag is a const that is part of a lookup table.
839 */
840 IndexOp->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Tag);
841 return (InternalPath);
842 }
843
844
845 /*******************************************************************************
846 *
847 * FUNCTION: AcpiDmUpdateResourceName
848 *
849 * PARAMETERS: ResourceNode - Node for a resource descriptor
850 *
851 * RETURN: Stores new name in the ResourceNode
852 *
853 * DESCRIPTION: Create a new, unique name for a resource descriptor. Used by
854 * both the disassembly of the descriptor itself and any symbolic
855 * references to the descriptor. Ignored if a unique name has
856 * already been assigned to the resource.
857 *
858 * NOTE: Single threaded, suitable for applications only!
859 *
860 ******************************************************************************/
861
862 static void
AcpiDmUpdateResourceName(ACPI_NAMESPACE_NODE * ResourceNode)863 AcpiDmUpdateResourceName (
864 ACPI_NAMESPACE_NODE *ResourceNode)
865 {
866 char Name[ACPI_NAME_SIZE];
867
868
869 /* Ignore if a unique name has already been assigned */
870
871 if (ResourceNode->Name.Integer != ACPI_DEFAULT_RESNAME)
872 {
873 return;
874 }
875
876 /* Generate a new ACPI name for the descriptor */
877
878 Name[0] = '_';
879 Name[1] = AcpiGbl_Prefix[AcpiGbl_NextPrefix];
880 Name[2] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 4);
881 Name[3] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 0);
882
883 /* Update globals for next name */
884
885 AcpiGbl_NextResourceId++;
886 if (AcpiGbl_NextResourceId >= 256)
887 {
888 AcpiGbl_NextResourceId = 0;
889 AcpiGbl_NextPrefix++;
890
891 if (AcpiGbl_NextPrefix > ACPI_NUM_RES_PREFIX)
892 {
893 AcpiGbl_NextPrefix = 0;
894 }
895 }
896
897 /* Change the resource descriptor name */
898
899 ResourceNode->Name.Integer = *ACPI_CAST_PTR (UINT32, &Name[0]);
900 }
901
902
903 /*******************************************************************************
904 *
905 * FUNCTION: AcpiDmGetResourceTag
906 *
907 * PARAMETERS: BitIndex - Index into the resource descriptor
908 * Resource - Pointer to the raw resource data
909 * ResourceIndex - Index correspoinding to the resource type
910 *
911 * RETURN: Pointer to the resource tag (ACPI_NAME). NULL if no match.
912 *
913 * DESCRIPTION: Convert a BitIndex into a symbolic resource tag.
914 *
915 * Note: ResourceIndex should be previously validated and guaranteed to ve
916 * valid.
917 *
918 ******************************************************************************/
919
920 static char *
AcpiDmGetResourceTag(UINT32 BitIndex,AML_RESOURCE * Resource,UINT8 ResourceIndex)921 AcpiDmGetResourceTag (
922 UINT32 BitIndex,
923 AML_RESOURCE *Resource,
924 UINT8 ResourceIndex)
925 {
926 const ACPI_RESOURCE_TAG *TagList;
927 char *Tag = NULL;
928
929
930 /* Get the tag list for this resource descriptor type */
931
932 TagList = AcpiGbl_ResourceTags[ResourceIndex];
933
934 /*
935 * Handle descriptors that have multiple subtypes
936 */
937 switch (Resource->DescriptorType)
938 {
939 case ACPI_RESOURCE_NAME_ADDRESS16:
940 case ACPI_RESOURCE_NAME_ADDRESS32:
941 case ACPI_RESOURCE_NAME_ADDRESS64:
942 case ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64:
943 /*
944 * Subtype differentiation is the flags.
945 * Kindof brute force, but just blindly search for an index match
946 */
947 if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_MEMORY_RANGE)
948 {
949 Tag = AcpiDmSearchTagList (BitIndex, AcpiDmMemoryFlagTags);
950 }
951 else if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_IO_RANGE)
952 {
953 Tag = AcpiDmSearchTagList (BitIndex, AcpiDmIoFlagTags);
954 }
955
956 /* If we found a match, all done. Else, drop to normal search below */
957
958 if (Tag)
959 {
960 return (Tag);
961 }
962 break;
963
964 case ACPI_RESOURCE_NAME_GPIO:
965
966 /* GPIO connection has 2 subtypes: Interrupt and I/O */
967
968 if (Resource->Gpio.ConnectionType > AML_RESOURCE_MAX_GPIOTYPE)
969 {
970 return (NULL);
971 }
972
973 TagList = AcpiGbl_GpioResourceTags[Resource->Gpio.ConnectionType];
974 break;
975
976 case ACPI_RESOURCE_NAME_SERIAL_BUS:
977
978 /* SerialBus has 3 subtypes: I2C, SPI, and UART */
979
980 if ((Resource->CommonSerialBus.Type == 0) ||
981 (Resource->CommonSerialBus.Type > AML_RESOURCE_MAX_SERIALBUSTYPE))
982 {
983 return (NULL);
984 }
985
986 TagList = AcpiGbl_SerialResourceTags[Resource->CommonSerialBus.Type];
987 break;
988
989 default:
990
991 break;
992 }
993
994 /* Search for a match against the BitIndex */
995
996 if (TagList)
997 {
998 Tag = AcpiDmSearchTagList (BitIndex, TagList);
999 }
1000
1001 return (Tag);
1002 }
1003
1004
1005 /*******************************************************************************
1006 *
1007 * FUNCTION: AcpiDmSearchTagList
1008 *
1009 * PARAMETERS: BitIndex - Index into the resource descriptor
1010 * TagList - List to search
1011 *
1012 * RETURN: Pointer to a tag (ACPI_NAME). NULL if no match found.
1013 *
1014 * DESCRIPTION: Search a tag list for a match to the input BitIndex. Matches
1015 * a fixed offset to a symbolic resource tag name.
1016 *
1017 ******************************************************************************/
1018
1019 static char *
AcpiDmSearchTagList(UINT32 BitIndex,const ACPI_RESOURCE_TAG * TagList)1020 AcpiDmSearchTagList (
1021 UINT32 BitIndex,
1022 const ACPI_RESOURCE_TAG *TagList)
1023 {
1024
1025 /*
1026 * Walk the null-terminated tag list to find a matching bit offset.
1027 * We are looking for an exact match.
1028 */
1029 for ( ; TagList->Tag; TagList++)
1030 {
1031 if (BitIndex == TagList->BitIndex)
1032 {
1033 return (TagList->Tag);
1034 }
1035 }
1036
1037 /* A matching offset was not found */
1038
1039 return (NULL);
1040 }
1041
1042
1043 /*******************************************************************************
1044 *
1045 * FUNCTION: AcpiDmFindResources
1046 *
1047 * PARAMETERS: Root - Root of the parse tree
1048 *
1049 * RETURN: None
1050 *
1051 * DESCRIPTION: Add all ResourceTemplate declarations to the namespace. Each
1052 * resource descriptor in each template is given a node -- used
1053 * for later conversion of resource references to symbolic refs.
1054 *
1055 ******************************************************************************/
1056
1057 void
AcpiDmFindResources(ACPI_PARSE_OBJECT * Root)1058 AcpiDmFindResources (
1059 ACPI_PARSE_OBJECT *Root)
1060 {
1061 ACPI_PARSE_OBJECT *Op = Root;
1062 ACPI_PARSE_OBJECT *Parent;
1063
1064
1065 /* Walk the entire parse tree */
1066
1067 while (Op)
1068 {
1069 /* We are interested in Buffer() declarations */
1070
1071 if (Op->Common.AmlOpcode == AML_BUFFER_OP)
1072 {
1073 /* And only declarations of the form Name (XXXX, Buffer()... ) */
1074
1075 Parent = Op->Common.Parent;
1076 if (Parent->Common.AmlOpcode == AML_NAME_OP)
1077 {
1078 /*
1079 * If the buffer is a resource template, add the individual
1080 * resource descriptors to the namespace, as children of the
1081 * buffer node.
1082 */
1083 if (ACPI_SUCCESS (AcpiDmIsResourceTemplate (NULL, Op)))
1084 {
1085 Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE;
1086 AcpiDmAddResourcesToNamespace (Parent->Common.Node, Op);
1087 }
1088 }
1089 }
1090
1091 Op = AcpiPsGetDepthNext (Root, Op);
1092 }
1093 }
1094
1095
1096 /*******************************************************************************
1097 *
1098 * FUNCTION: AcpiDmAddResourcesToNamespace
1099 *
1100 * PARAMETERS: BufferNode - Node for the parent buffer
1101 * Op - Parse op for the buffer
1102 *
1103 * RETURN: None
1104 *
1105 * DESCRIPTION: Add an entire resource template to the namespace. Each
1106 * resource descriptor is added as a namespace node.
1107 *
1108 ******************************************************************************/
1109
1110 static void
AcpiDmAddResourcesToNamespace(ACPI_NAMESPACE_NODE * BufferNode,ACPI_PARSE_OBJECT * Op)1111 AcpiDmAddResourcesToNamespace (
1112 ACPI_NAMESPACE_NODE *BufferNode,
1113 ACPI_PARSE_OBJECT *Op)
1114 {
1115 ACPI_PARSE_OBJECT *NextOp;
1116
1117
1118 /* Get to the ByteData list */
1119
1120 NextOp = Op->Common.Value.Arg;
1121 NextOp = NextOp->Common.Next;
1122 if (!NextOp)
1123 {
1124 return;
1125 }
1126
1127 /* Set Node and Op to point to each other */
1128
1129 BufferNode->Op = Op;
1130 Op->Common.Node = BufferNode;
1131
1132 /*
1133 * Insert each resource into the namespace
1134 * NextOp contains the Aml pointer and the Aml length
1135 */
1136 AcpiUtWalkAmlResources (NULL, (UINT8 *) NextOp->Named.Data,
1137 (ACPI_SIZE) NextOp->Common.Value.Integer,
1138 AcpiDmAddResourceToNamespace, (void **) BufferNode);
1139 }
1140
1141
1142 /*******************************************************************************
1143 *
1144 * FUNCTION: AcpiDmAddResourceToNamespace
1145 *
1146 * PARAMETERS: ACPI_WALK_AML_CALLBACK
1147 * BufferNode - Node for the parent buffer
1148 *
1149 * RETURN: Status
1150 *
1151 * DESCRIPTION: Add one resource descriptor to the namespace as a child of the
1152 * parent buffer. The same name is used for each descriptor. This
1153 * is changed later to a unique name if the resource is actually
1154 * referenced by an AML operator.
1155 *
1156 ******************************************************************************/
1157
1158 static ACPI_STATUS
AcpiDmAddResourceToNamespace(UINT8 * Aml,UINT32 Length,UINT32 Offset,UINT8 ResourceIndex,void ** Context)1159 AcpiDmAddResourceToNamespace (
1160 UINT8 *Aml,
1161 UINT32 Length,
1162 UINT32 Offset,
1163 UINT8 ResourceIndex,
1164 void **Context)
1165 {
1166 ACPI_STATUS Status;
1167 ACPI_GENERIC_STATE ScopeInfo;
1168 ACPI_NAMESPACE_NODE *Node;
1169
1170
1171 /* TBD: Don't need to add descriptors that have no tags defined? */
1172
1173 /* Add the resource to the namespace, as child of the buffer */
1174
1175 ScopeInfo.Scope.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Context);
1176 Status = AcpiNsLookup (&ScopeInfo, "_TMP", ACPI_TYPE_LOCAL_RESOURCE,
1177 ACPI_IMODE_LOAD_PASS2,
1178 ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_PREFIX_IS_SCOPE,
1179 NULL, &Node);
1180 if (ACPI_FAILURE (Status))
1181 {
1182 return (AE_OK);
1183 }
1184
1185 /* Set the name to the default, changed later if resource is referenced */
1186
1187 Node->Name.Integer = ACPI_DEFAULT_RESNAME;
1188
1189 /* Save the offset of the descriptor (within the original buffer) */
1190
1191 Node->Value = Offset;
1192 Node->Length = Length;
1193 return (AE_OK);
1194 }
1195