Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: dsfield - Dispatcher field routines | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
8 | * Copyright (C) 2000 - 2005, R. Byron Moore | |
9 | * All rights reserved. | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions, and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
18 | * substantially similar to the "NO WARRANTY" disclaimer below | |
19 | * ("Disclaimer") and any redistribution must be conditioned upon | |
20 | * including a substantially similar Disclaimer requirement for further | |
21 | * binary redistribution. | |
22 | * 3. Neither the names of the above-listed copyright holders nor the names | |
23 | * of any contributors may be used to endorse or promote products derived | |
24 | * from this software without specific prior written permission. | |
25 | * | |
26 | * Alternatively, this software may be distributed under the terms of the | |
27 | * GNU General Public License ("GPL") version 2 as published by the Free | |
28 | * Software Foundation. | |
29 | * | |
30 | * NO WARRANTY | |
31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | |
34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
41 | * POSSIBILITY OF SUCH DAMAGES. | |
42 | */ | |
43 | ||
44 | ||
45 | #include <acpi/acpi.h> | |
46 | #include <acpi/amlcode.h> | |
47 | #include <acpi/acdispat.h> | |
48 | #include <acpi/acinterp.h> | |
49 | #include <acpi/acnamesp.h> | |
50 | #include <acpi/acparser.h> | |
51 | ||
52 | ||
53 | #define _COMPONENT ACPI_DISPATCHER | |
54 | ACPI_MODULE_NAME ("dsfield") | |
55 | ||
56 | ||
57 | /******************************************************************************* | |
58 | * | |
59 | * FUNCTION: acpi_ds_create_buffer_field | |
60 | * | |
61 | * PARAMETERS: Opcode - The opcode to be executed | |
62 | * Operands - List of operands for the opcode | |
63 | * walk_state - Current state | |
64 | * | |
65 | * RETURN: Status | |
66 | * | |
67 | * DESCRIPTION: Execute the create_field operators: | |
68 | * create_bit_field_op, | |
69 | * create_byte_field_op, | |
70 | * create_word_field_op, | |
71 | * create_dword_field_op, | |
72 | * create_qword_field_op, | |
73 | * create_field_op (all of which define fields in buffers) | |
74 | * | |
75 | ******************************************************************************/ | |
76 | ||
77 | acpi_status | |
78 | acpi_ds_create_buffer_field ( | |
79 | union acpi_parse_object *op, | |
80 | struct acpi_walk_state *walk_state) | |
81 | { | |
82 | union acpi_parse_object *arg; | |
83 | struct acpi_namespace_node *node; | |
84 | acpi_status status; | |
85 | union acpi_operand_object *obj_desc; | |
86 | union acpi_operand_object *second_desc = NULL; | |
87 | u32 flags; | |
88 | ||
89 | ||
90 | ACPI_FUNCTION_TRACE ("ds_create_buffer_field"); | |
91 | ||
92 | ||
93 | /* Get the name_string argument */ | |
94 | ||
95 | if (op->common.aml_opcode == AML_CREATE_FIELD_OP) { | |
96 | arg = acpi_ps_get_arg (op, 3); | |
97 | } | |
98 | else { | |
99 | /* Create Bit/Byte/Word/Dword field */ | |
100 | ||
101 | arg = acpi_ps_get_arg (op, 2); | |
102 | } | |
103 | ||
104 | if (!arg) { | |
105 | return_ACPI_STATUS (AE_AML_NO_OPERAND); | |
106 | } | |
107 | ||
108 | if (walk_state->deferred_node) { | |
109 | node = walk_state->deferred_node; | |
110 | status = AE_OK; | |
111 | } | |
112 | else { | |
113 | /* | |
114 | * During the load phase, we want to enter the name of the field into | |
115 | * the namespace. During the execute phase (when we evaluate the size | |
116 | * operand), we want to lookup the name | |
117 | */ | |
118 | if (walk_state->parse_flags & ACPI_PARSE_EXECUTE) { | |
119 | flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE; | |
120 | } | |
121 | else { | |
122 | flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_ERROR_IF_FOUND; | |
123 | } | |
124 | ||
125 | /* | |
126 | * Enter the name_string into the namespace | |
127 | */ | |
128 | status = acpi_ns_lookup (walk_state->scope_info, arg->common.value.string, | |
129 | ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS1, | |
130 | flags, walk_state, &(node)); | |
131 | if (ACPI_FAILURE (status)) { | |
132 | ACPI_REPORT_NSERROR (arg->common.value.string, status); | |
133 | return_ACPI_STATUS (status); | |
134 | } | |
135 | } | |
136 | ||
137 | /* We could put the returned object (Node) on the object stack for later, but | |
138 | * for now, we will put it in the "op" object that the parser uses, so we | |
139 | * can get it again at the end of this scope | |
140 | */ | |
141 | op->common.node = node; | |
142 | ||
143 | /* | |
144 | * If there is no object attached to the node, this node was just created and | |
145 | * we need to create the field object. Otherwise, this was a lookup of an | |
146 | * existing node and we don't want to create the field object again. | |
147 | */ | |
148 | obj_desc = acpi_ns_get_attached_object (node); | |
149 | if (obj_desc) { | |
150 | return_ACPI_STATUS (AE_OK); | |
151 | } | |
152 | ||
153 | /* | |
154 | * The Field definition is not fully parsed at this time. | |
155 | * (We must save the address of the AML for the buffer and index operands) | |
156 | */ | |
157 | ||
158 | /* Create the buffer field object */ | |
159 | ||
160 | obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_BUFFER_FIELD); | |
161 | if (!obj_desc) { | |
162 | status = AE_NO_MEMORY; | |
163 | goto cleanup; | |
164 | } | |
165 | ||
166 | /* | |
167 | * Remember location in AML stream of the field unit | |
168 | * opcode and operands -- since the buffer and index | |
169 | * operands must be evaluated. | |
170 | */ | |
171 | second_desc = obj_desc->common.next_object; | |
172 | second_desc->extra.aml_start = op->named.data; | |
173 | second_desc->extra.aml_length = op->named.length; | |
174 | obj_desc->buffer_field.node = node; | |
175 | ||
176 | /* Attach constructed field descriptors to parent node */ | |
177 | ||
178 | status = acpi_ns_attach_object (node, obj_desc, ACPI_TYPE_BUFFER_FIELD); | |
179 | if (ACPI_FAILURE (status)) { | |
180 | goto cleanup; | |
181 | } | |
182 | ||
183 | ||
184 | cleanup: | |
185 | ||
186 | /* Remove local reference to the object */ | |
187 | ||
188 | acpi_ut_remove_reference (obj_desc); | |
189 | return_ACPI_STATUS (status); | |
190 | } | |
191 | ||
192 | ||
193 | /******************************************************************************* | |
194 | * | |
195 | * FUNCTION: acpi_ds_get_field_names | |
196 | * | |
197 | * PARAMETERS: Info - create_field info structure | |
198 | * ` walk_state - Current method state | |
199 | * Arg - First parser arg for the field name list | |
200 | * | |
201 | * RETURN: Status | |
202 | * | |
203 | * DESCRIPTION: Process all named fields in a field declaration. Names are | |
204 | * entered into the namespace. | |
205 | * | |
206 | ******************************************************************************/ | |
207 | ||
208 | acpi_status | |
209 | acpi_ds_get_field_names ( | |
210 | struct acpi_create_field_info *info, | |
211 | struct acpi_walk_state *walk_state, | |
212 | union acpi_parse_object *arg) | |
213 | { | |
214 | acpi_status status; | |
215 | acpi_integer position; | |
216 | ||
217 | ||
218 | ACPI_FUNCTION_TRACE_PTR ("ds_get_field_names", info); | |
219 | ||
220 | ||
221 | /* First field starts at bit zero */ | |
222 | ||
223 | info->field_bit_position = 0; | |
224 | ||
225 | /* Process all elements in the field list (of parse nodes) */ | |
226 | ||
227 | while (arg) { | |
228 | /* | |
229 | * Three types of field elements are handled: | |
230 | * 1) Offset - specifies a bit offset | |
231 | * 2) access_as - changes the access mode | |
232 | * 3) Name - Enters a new named field into the namespace | |
233 | */ | |
234 | switch (arg->common.aml_opcode) { | |
235 | case AML_INT_RESERVEDFIELD_OP: | |
236 | ||
237 | position = (acpi_integer) info->field_bit_position | |
238 | + (acpi_integer) arg->common.value.size; | |
239 | ||
240 | if (position > ACPI_UINT32_MAX) { | |
241 | ACPI_REPORT_ERROR (("Bit offset within field too large (> 0xFFFFFFFF)\n")); | |
242 | return_ACPI_STATUS (AE_SUPPORT); | |
243 | } | |
244 | ||
245 | info->field_bit_position = (u32) position; | |
246 | break; | |
247 | ||
248 | ||
249 | case AML_INT_ACCESSFIELD_OP: | |
250 | ||
251 | /* | |
252 | * Get a new access_type and access_attribute -- to be used for all | |
253 | * field units that follow, until field end or another access_as keyword. | |
254 | * | |
255 | * In field_flags, preserve the flag bits other than the ACCESS_TYPE bits | |
256 | */ | |
257 | info->field_flags = (u8) ((info->field_flags & ~(AML_FIELD_ACCESS_TYPE_MASK)) | | |
258 | ((u8) ((u32) arg->common.value.integer >> 8))); | |
259 | ||
260 | info->attribute = (u8) (arg->common.value.integer); | |
261 | break; | |
262 | ||
263 | ||
264 | case AML_INT_NAMEDFIELD_OP: | |
265 | ||
266 | /* Lookup the name */ | |
267 | ||
268 | status = acpi_ns_lookup (walk_state->scope_info, | |
269 | (char *) &arg->named.name, | |
270 | info->field_type, ACPI_IMODE_EXECUTE, ACPI_NS_DONT_OPEN_SCOPE, | |
271 | walk_state, &info->field_node); | |
272 | if (ACPI_FAILURE (status)) { | |
273 | ACPI_REPORT_NSERROR ((char *) &arg->named.name, status); | |
274 | if (status != AE_ALREADY_EXISTS) { | |
275 | return_ACPI_STATUS (status); | |
276 | } | |
277 | ||
278 | /* Already exists, ignore error */ | |
279 | } | |
280 | else { | |
281 | arg->common.node = info->field_node; | |
282 | info->field_bit_length = arg->common.value.size; | |
283 | ||
284 | /* Create and initialize an object for the new Field Node */ | |
285 | ||
286 | status = acpi_ex_prep_field_value (info); | |
287 | if (ACPI_FAILURE (status)) { | |
288 | return_ACPI_STATUS (status); | |
289 | } | |
290 | } | |
291 | ||
292 | /* Keep track of bit position for the next field */ | |
293 | ||
294 | position = (acpi_integer) info->field_bit_position | |
295 | + (acpi_integer) arg->common.value.size; | |
296 | ||
297 | if (position > ACPI_UINT32_MAX) { | |
298 | ACPI_REPORT_ERROR (("Field [%4.4s] bit offset too large (> 0xFFFFFFFF)\n", | |
299 | (char *) &info->field_node->name)); | |
300 | return_ACPI_STATUS (AE_SUPPORT); | |
301 | } | |
302 | ||
303 | info->field_bit_position += info->field_bit_length; | |
304 | break; | |
305 | ||
306 | ||
307 | default: | |
308 | ||
309 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid opcode in field list: %X\n", | |
310 | arg->common.aml_opcode)); | |
311 | return_ACPI_STATUS (AE_AML_BAD_OPCODE); | |
312 | } | |
313 | ||
314 | arg = arg->common.next; | |
315 | } | |
316 | ||
317 | return_ACPI_STATUS (AE_OK); | |
318 | } | |
319 | ||
320 | ||
321 | /******************************************************************************* | |
322 | * | |
323 | * FUNCTION: acpi_ds_create_field | |
324 | * | |
325 | * PARAMETERS: Op - Op containing the Field definition and args | |
326 | * region_node - Object for the containing Operation Region | |
327 | * ` walk_state - Current method state | |
328 | * | |
329 | * RETURN: Status | |
330 | * | |
331 | * DESCRIPTION: Create a new field in the specified operation region | |
332 | * | |
333 | ******************************************************************************/ | |
334 | ||
335 | acpi_status | |
336 | acpi_ds_create_field ( | |
337 | union acpi_parse_object *op, | |
338 | struct acpi_namespace_node *region_node, | |
339 | struct acpi_walk_state *walk_state) | |
340 | { | |
341 | acpi_status status; | |
342 | union acpi_parse_object *arg; | |
343 | struct acpi_create_field_info info; | |
344 | ||
345 | ||
346 | ACPI_FUNCTION_TRACE_PTR ("ds_create_field", op); | |
347 | ||
348 | ||
349 | /* First arg is the name of the parent op_region (must already exist) */ | |
350 | ||
351 | arg = op->common.value.arg; | |
352 | if (!region_node) { | |
353 | status = acpi_ns_lookup (walk_state->scope_info, arg->common.value.name, | |
354 | ACPI_TYPE_REGION, ACPI_IMODE_EXECUTE, | |
355 | ACPI_NS_SEARCH_PARENT, walk_state, ®ion_node); | |
356 | if (ACPI_FAILURE (status)) { | |
357 | ACPI_REPORT_NSERROR (arg->common.value.name, status); | |
358 | return_ACPI_STATUS (status); | |
359 | } | |
360 | } | |
361 | ||
362 | /* Second arg is the field flags */ | |
363 | ||
364 | arg = arg->common.next; | |
365 | info.field_flags = (u8) arg->common.value.integer; | |
366 | info.attribute = 0; | |
367 | ||
368 | /* Each remaining arg is a Named Field */ | |
369 | ||
370 | info.field_type = ACPI_TYPE_LOCAL_REGION_FIELD; | |
371 | info.region_node = region_node; | |
372 | ||
373 | status = acpi_ds_get_field_names (&info, walk_state, arg->common.next); | |
374 | ||
375 | return_ACPI_STATUS (status); | |
376 | } | |
377 | ||
378 | ||
379 | /******************************************************************************* | |
380 | * | |
381 | * FUNCTION: acpi_ds_init_field_objects | |
382 | * | |
383 | * PARAMETERS: Op - Op containing the Field definition and args | |
384 | * ` walk_state - Current method state | |
385 | * | |
386 | * RETURN: Status | |
387 | * | |
388 | * DESCRIPTION: For each "Field Unit" name in the argument list that is | |
389 | * part of the field declaration, enter the name into the | |
390 | * namespace. | |
391 | * | |
392 | ******************************************************************************/ | |
393 | ||
394 | acpi_status | |
395 | acpi_ds_init_field_objects ( | |
396 | union acpi_parse_object *op, | |
397 | struct acpi_walk_state *walk_state) | |
398 | { | |
399 | acpi_status status; | |
400 | union acpi_parse_object *arg = NULL; | |
401 | struct acpi_namespace_node *node; | |
402 | u8 type = 0; | |
403 | ||
404 | ||
405 | ACPI_FUNCTION_TRACE_PTR ("ds_init_field_objects", op); | |
406 | ||
407 | ||
408 | switch (walk_state->opcode) { | |
409 | case AML_FIELD_OP: | |
410 | arg = acpi_ps_get_arg (op, 2); | |
411 | type = ACPI_TYPE_LOCAL_REGION_FIELD; | |
412 | break; | |
413 | ||
414 | case AML_BANK_FIELD_OP: | |
415 | arg = acpi_ps_get_arg (op, 4); | |
416 | type = ACPI_TYPE_LOCAL_BANK_FIELD; | |
417 | break; | |
418 | ||
419 | case AML_INDEX_FIELD_OP: | |
420 | arg = acpi_ps_get_arg (op, 3); | |
421 | type = ACPI_TYPE_LOCAL_INDEX_FIELD; | |
422 | break; | |
423 | ||
424 | default: | |
425 | return_ACPI_STATUS (AE_BAD_PARAMETER); | |
426 | } | |
427 | ||
428 | /* | |
429 | * Walk the list of entries in the field_list | |
430 | */ | |
431 | while (arg) { | |
432 | /* Ignore OFFSET and ACCESSAS terms here */ | |
433 | ||
434 | if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) { | |
435 | status = acpi_ns_lookup (walk_state->scope_info, | |
436 | (char *) &arg->named.name, | |
437 | type, ACPI_IMODE_LOAD_PASS1, | |
438 | ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_ERROR_IF_FOUND, | |
439 | walk_state, &node); | |
440 | if (ACPI_FAILURE (status)) { | |
441 | ACPI_REPORT_NSERROR ((char *) &arg->named.name, status); | |
442 | if (status != AE_ALREADY_EXISTS) { | |
443 | return_ACPI_STATUS (status); | |
444 | } | |
445 | ||
446 | /* Name already exists, just ignore this error */ | |
447 | ||
448 | status = AE_OK; | |
449 | } | |
450 | ||
451 | arg->common.node = node; | |
452 | } | |
453 | ||
454 | /* Move to next field in the list */ | |
455 | ||
456 | arg = arg->common.next; | |
457 | } | |
458 | ||
459 | return_ACPI_STATUS (AE_OK); | |
460 | } | |
461 | ||
462 | ||
463 | /******************************************************************************* | |
464 | * | |
465 | * FUNCTION: acpi_ds_create_bank_field | |
466 | * | |
467 | * PARAMETERS: Op - Op containing the Field definition and args | |
468 | * region_node - Object for the containing Operation Region | |
469 | * ` walk_state - Current method state | |
470 | * | |
471 | * RETURN: Status | |
472 | * | |
473 | * DESCRIPTION: Create a new bank field in the specified operation region | |
474 | * | |
475 | ******************************************************************************/ | |
476 | ||
477 | acpi_status | |
478 | acpi_ds_create_bank_field ( | |
479 | union acpi_parse_object *op, | |
480 | struct acpi_namespace_node *region_node, | |
481 | struct acpi_walk_state *walk_state) | |
482 | { | |
483 | acpi_status status; | |
484 | union acpi_parse_object *arg; | |
485 | struct acpi_create_field_info info; | |
486 | ||
487 | ||
488 | ACPI_FUNCTION_TRACE_PTR ("ds_create_bank_field", op); | |
489 | ||
490 | ||
491 | /* First arg is the name of the parent op_region (must already exist) */ | |
492 | ||
493 | arg = op->common.value.arg; | |
494 | if (!region_node) { | |
495 | status = acpi_ns_lookup (walk_state->scope_info, arg->common.value.name, | |
496 | ACPI_TYPE_REGION, ACPI_IMODE_EXECUTE, | |
497 | ACPI_NS_SEARCH_PARENT, walk_state, ®ion_node); | |
498 | if (ACPI_FAILURE (status)) { | |
499 | ACPI_REPORT_NSERROR (arg->common.value.name, status); | |
500 | return_ACPI_STATUS (status); | |
501 | } | |
502 | } | |
503 | ||
504 | /* Second arg is the Bank Register (Field) (must already exist) */ | |
505 | ||
506 | arg = arg->common.next; | |
507 | status = acpi_ns_lookup (walk_state->scope_info, arg->common.value.string, | |
508 | ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, | |
509 | ACPI_NS_SEARCH_PARENT, walk_state, &info.register_node); | |
510 | if (ACPI_FAILURE (status)) { | |
511 | ACPI_REPORT_NSERROR (arg->common.value.string, status); | |
512 | return_ACPI_STATUS (status); | |
513 | } | |
514 | ||
515 | /* Third arg is the bank_value */ | |
516 | ||
517 | arg = arg->common.next; | |
518 | info.bank_value = (u32) arg->common.value.integer; | |
519 | ||
520 | /* Fourth arg is the field flags */ | |
521 | ||
522 | arg = arg->common.next; | |
523 | info.field_flags = (u8) arg->common.value.integer; | |
524 | ||
525 | /* Each remaining arg is a Named Field */ | |
526 | ||
527 | info.field_type = ACPI_TYPE_LOCAL_BANK_FIELD; | |
528 | info.region_node = region_node; | |
529 | ||
530 | status = acpi_ds_get_field_names (&info, walk_state, arg->common.next); | |
531 | ||
532 | return_ACPI_STATUS (status); | |
533 | } | |
534 | ||
535 | ||
536 | /******************************************************************************* | |
537 | * | |
538 | * FUNCTION: acpi_ds_create_index_field | |
539 | * | |
540 | * PARAMETERS: Op - Op containing the Field definition and args | |
541 | * region_node - Object for the containing Operation Region | |
542 | * ` walk_state - Current method state | |
543 | * | |
544 | * RETURN: Status | |
545 | * | |
546 | * DESCRIPTION: Create a new index field in the specified operation region | |
547 | * | |
548 | ******************************************************************************/ | |
549 | ||
550 | acpi_status | |
551 | acpi_ds_create_index_field ( | |
552 | union acpi_parse_object *op, | |
553 | struct acpi_namespace_node *region_node, | |
554 | struct acpi_walk_state *walk_state) | |
555 | { | |
556 | acpi_status status; | |
557 | union acpi_parse_object *arg; | |
558 | struct acpi_create_field_info info; | |
559 | ||
560 | ||
561 | ACPI_FUNCTION_TRACE_PTR ("ds_create_index_field", op); | |
562 | ||
563 | ||
564 | /* First arg is the name of the Index register (must already exist) */ | |
565 | ||
566 | arg = op->common.value.arg; | |
567 | status = acpi_ns_lookup (walk_state->scope_info, arg->common.value.string, | |
568 | ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, | |
569 | ACPI_NS_SEARCH_PARENT, walk_state, &info.register_node); | |
570 | if (ACPI_FAILURE (status)) { | |
571 | ACPI_REPORT_NSERROR (arg->common.value.string, status); | |
572 | return_ACPI_STATUS (status); | |
573 | } | |
574 | ||
575 | /* Second arg is the data register (must already exist) */ | |
576 | ||
577 | arg = arg->common.next; | |
578 | status = acpi_ns_lookup (walk_state->scope_info, arg->common.value.string, | |
579 | ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, | |
580 | ACPI_NS_SEARCH_PARENT, walk_state, &info.data_register_node); | |
581 | if (ACPI_FAILURE (status)) { | |
582 | ACPI_REPORT_NSERROR (arg->common.value.string, status); | |
583 | return_ACPI_STATUS (status); | |
584 | } | |
585 | ||
586 | /* Next arg is the field flags */ | |
587 | ||
588 | arg = arg->common.next; | |
589 | info.field_flags = (u8) arg->common.value.integer; | |
590 | ||
591 | /* Each remaining arg is a Named Field */ | |
592 | ||
593 | info.field_type = ACPI_TYPE_LOCAL_INDEX_FIELD; | |
594 | info.region_node = region_node; | |
595 | ||
596 | status = acpi_ds_get_field_names (&info, walk_state, arg->common.next); | |
597 | ||
598 | return_ACPI_STATUS (status); | |
599 | } | |
600 | ||
601 |