Commit | Line | Data |
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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: dsobject - Dispatcher object management 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 | ||
1da177e4 LT |
44 | #include <acpi/acpi.h> |
45 | #include <acpi/acparser.h> | |
46 | #include <acpi/amlcode.h> | |
47 | #include <acpi/acdispat.h> | |
48 | #include <acpi/acnamesp.h> | |
49 | #include <acpi/acinterp.h> | |
50 | ||
51 | #define _COMPONENT ACPI_DISPATCHER | |
4be44fcd | 52 | ACPI_MODULE_NAME("dsobject") |
1da177e4 | 53 | |
defba1d8 | 54 | /* Local prototypes */ |
44f6c012 | 55 | static acpi_status |
4be44fcd LB |
56 | acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, |
57 | union acpi_parse_object *op, | |
58 | union acpi_operand_object **obj_desc_ptr); | |
1da177e4 LT |
59 | |
60 | #ifndef ACPI_NO_METHOD_EXECUTION | |
44f6c012 | 61 | /******************************************************************************* |
1da177e4 LT |
62 | * |
63 | * FUNCTION: acpi_ds_build_internal_object | |
64 | * | |
65 | * PARAMETERS: walk_state - Current walk state | |
66 | * Op - Parser object to be translated | |
67 | * obj_desc_ptr - Where the ACPI internal object is returned | |
68 | * | |
69 | * RETURN: Status | |
70 | * | |
71 | * DESCRIPTION: Translate a parser Op object to the equivalent namespace object | |
72 | * Simple objects are any objects other than a package object! | |
73 | * | |
44f6c012 | 74 | ******************************************************************************/ |
1da177e4 | 75 | |
44f6c012 | 76 | static acpi_status |
4be44fcd LB |
77 | acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, |
78 | union acpi_parse_object *op, | |
79 | union acpi_operand_object **obj_desc_ptr) | |
1da177e4 | 80 | { |
4be44fcd LB |
81 | union acpi_operand_object *obj_desc; |
82 | acpi_status status; | |
1da177e4 | 83 | |
4be44fcd | 84 | ACPI_FUNCTION_TRACE("ds_build_internal_object"); |
1da177e4 LT |
85 | |
86 | *obj_desc_ptr = NULL; | |
87 | if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { | |
88 | /* | |
defba1d8 | 89 | * This is a named object reference. If this name was |
1da177e4 LT |
90 | * previously looked up in the namespace, it was stored in this op. |
91 | * Otherwise, go ahead and look it up now | |
92 | */ | |
93 | if (!op->common.node) { | |
4be44fcd LB |
94 | status = acpi_ns_lookup(walk_state->scope_info, |
95 | op->common.value.string, | |
96 | ACPI_TYPE_ANY, | |
97 | ACPI_IMODE_EXECUTE, | |
98 | ACPI_NS_SEARCH_PARENT | | |
99 | ACPI_NS_DONT_OPEN_SCOPE, NULL, | |
defba1d8 BM |
100 | ACPI_CAST_INDIRECT_PTR(struct |
101 | acpi_namespace_node, | |
102 | &(op-> | |
103 | common. | |
104 | node))); | |
4be44fcd | 105 | if (ACPI_FAILURE(status)) { |
defba1d8 BM |
106 | /* Check if we are resolving a named reference within a package */ |
107 | ||
108 | if ((status == AE_NOT_FOUND) | |
109 | && (acpi_gbl_enable_interpreter_slack) | |
110 | && | |
111 | ((op->common.parent->common.aml_opcode == | |
112 | AML_PACKAGE_OP) | |
113 | || (op->common.parent->common.aml_opcode == | |
114 | AML_VAR_PACKAGE_OP))) { | |
115 | /* | |
116 | * We didn't find the target and we are populating elements | |
117 | * of a package - ignore if slack enabled. Some ASL code | |
118 | * contains dangling invalid references in packages and | |
119 | * expects that no exception will be issued. Leave the | |
120 | * element as a null element. It cannot be used, but it | |
121 | * can be overwritten by subsequent ASL code - this is | |
122 | * typically the case. | |
123 | */ | |
124 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | |
125 | "Ignoring unresolved reference in package [%4.4s]\n", | |
126 | walk_state-> | |
127 | scope_info->scope. | |
128 | node->name.ascii)); | |
129 | ||
130 | return_ACPI_STATUS(AE_OK); | |
131 | } else { | |
132 | ACPI_REPORT_NSERROR(op->common.value. | |
133 | string, status); | |
134 | } | |
135 | ||
4be44fcd | 136 | return_ACPI_STATUS(status); |
1da177e4 LT |
137 | } |
138 | } | |
139 | } | |
140 | ||
defba1d8 | 141 | /* Create and init a new internal ACPI object */ |
1da177e4 | 142 | |
4be44fcd LB |
143 | obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info |
144 | (op->common.aml_opcode))-> | |
145 | object_type); | |
1da177e4 | 146 | if (!obj_desc) { |
4be44fcd | 147 | return_ACPI_STATUS(AE_NO_MEMORY); |
1da177e4 LT |
148 | } |
149 | ||
4be44fcd LB |
150 | status = |
151 | acpi_ds_init_object_from_op(walk_state, op, op->common.aml_opcode, | |
152 | &obj_desc); | |
153 | if (ACPI_FAILURE(status)) { | |
154 | acpi_ut_remove_reference(obj_desc); | |
155 | return_ACPI_STATUS(status); | |
1da177e4 LT |
156 | } |
157 | ||
158 | *obj_desc_ptr = obj_desc; | |
4be44fcd | 159 | return_ACPI_STATUS(AE_OK); |
1da177e4 LT |
160 | } |
161 | ||
44f6c012 | 162 | /******************************************************************************* |
1da177e4 LT |
163 | * |
164 | * FUNCTION: acpi_ds_build_internal_buffer_obj | |
165 | * | |
166 | * PARAMETERS: walk_state - Current walk state | |
167 | * Op - Parser object to be translated | |
168 | * buffer_length - Length of the buffer | |
169 | * obj_desc_ptr - Where the ACPI internal object is returned | |
170 | * | |
171 | * RETURN: Status | |
172 | * | |
173 | * DESCRIPTION: Translate a parser Op package object to the equivalent | |
174 | * namespace object | |
175 | * | |
44f6c012 | 176 | ******************************************************************************/ |
1da177e4 LT |
177 | |
178 | acpi_status | |
4be44fcd LB |
179 | acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state, |
180 | union acpi_parse_object *op, | |
181 | u32 buffer_length, | |
182 | union acpi_operand_object **obj_desc_ptr) | |
1da177e4 | 183 | { |
4be44fcd LB |
184 | union acpi_parse_object *arg; |
185 | union acpi_operand_object *obj_desc; | |
186 | union acpi_parse_object *byte_list; | |
187 | u32 byte_list_length = 0; | |
1da177e4 | 188 | |
4be44fcd | 189 | ACPI_FUNCTION_TRACE("ds_build_internal_buffer_obj"); |
1da177e4 | 190 | |
defba1d8 BM |
191 | /* |
192 | * If we are evaluating a Named buffer object "Name (xxxx, Buffer)". | |
193 | * The buffer object already exists (from the NS node), otherwise it must | |
194 | * be created. | |
195 | */ | |
1da177e4 | 196 | obj_desc = *obj_desc_ptr; |
defba1d8 | 197 | if (!obj_desc) { |
1da177e4 LT |
198 | /* Create a new buffer object */ |
199 | ||
4be44fcd | 200 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); |
1da177e4 LT |
201 | *obj_desc_ptr = obj_desc; |
202 | if (!obj_desc) { | |
4be44fcd | 203 | return_ACPI_STATUS(AE_NO_MEMORY); |
1da177e4 LT |
204 | } |
205 | } | |
206 | ||
207 | /* | |
208 | * Second arg is the buffer data (optional) byte_list can be either | |
209 | * individual bytes or a string initializer. In either case, a | |
210 | * byte_list appears in the AML. | |
211 | */ | |
4be44fcd | 212 | arg = op->common.value.arg; /* skip first arg */ |
1da177e4 LT |
213 | |
214 | byte_list = arg->named.next; | |
215 | if (byte_list) { | |
216 | if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) { | |
4be44fcd LB |
217 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
218 | "Expecting bytelist, got AML opcode %X in op %p\n", | |
219 | byte_list->common.aml_opcode, | |
220 | byte_list)); | |
1da177e4 | 221 | |
4be44fcd | 222 | acpi_ut_remove_reference(obj_desc); |
1da177e4 LT |
223 | return (AE_TYPE); |
224 | } | |
225 | ||
226 | byte_list_length = (u32) byte_list->common.value.integer; | |
227 | } | |
228 | ||
229 | /* | |
230 | * The buffer length (number of bytes) will be the larger of: | |
231 | * 1) The specified buffer length and | |
232 | * 2) The length of the initializer byte list | |
233 | */ | |
234 | obj_desc->buffer.length = buffer_length; | |
235 | if (byte_list_length > buffer_length) { | |
236 | obj_desc->buffer.length = byte_list_length; | |
237 | } | |
238 | ||
239 | /* Allocate the buffer */ | |
240 | ||
241 | if (obj_desc->buffer.length == 0) { | |
242 | obj_desc->buffer.pointer = NULL; | |
4be44fcd LB |
243 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
244 | "Buffer defined with zero length in AML, creating\n")); | |
245 | } else { | |
246 | obj_desc->buffer.pointer = | |
247 | ACPI_MEM_CALLOCATE(obj_desc->buffer.length); | |
1da177e4 | 248 | if (!obj_desc->buffer.pointer) { |
4be44fcd LB |
249 | acpi_ut_delete_object_desc(obj_desc); |
250 | return_ACPI_STATUS(AE_NO_MEMORY); | |
1da177e4 LT |
251 | } |
252 | ||
253 | /* Initialize buffer from the byte_list (if present) */ | |
254 | ||
255 | if (byte_list) { | |
4be44fcd LB |
256 | ACPI_MEMCPY(obj_desc->buffer.pointer, |
257 | byte_list->named.data, byte_list_length); | |
1da177e4 LT |
258 | } |
259 | } | |
260 | ||
261 | obj_desc->buffer.flags |= AOPOBJ_DATA_VALID; | |
4be44fcd LB |
262 | op->common.node = (struct acpi_namespace_node *)obj_desc; |
263 | return_ACPI_STATUS(AE_OK); | |
1da177e4 LT |
264 | } |
265 | ||
44f6c012 | 266 | /******************************************************************************* |
1da177e4 LT |
267 | * |
268 | * FUNCTION: acpi_ds_build_internal_package_obj | |
269 | * | |
270 | * PARAMETERS: walk_state - Current walk state | |
271 | * Op - Parser object to be translated | |
272 | * package_length - Number of elements in the package | |
273 | * obj_desc_ptr - Where the ACPI internal object is returned | |
274 | * | |
275 | * RETURN: Status | |
276 | * | |
277 | * DESCRIPTION: Translate a parser Op package object to the equivalent | |
278 | * namespace object | |
279 | * | |
44f6c012 | 280 | ******************************************************************************/ |
1da177e4 LT |
281 | |
282 | acpi_status | |
4be44fcd LB |
283 | acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, |
284 | union acpi_parse_object *op, | |
285 | u32 package_length, | |
286 | union acpi_operand_object **obj_desc_ptr) | |
1da177e4 | 287 | { |
4be44fcd LB |
288 | union acpi_parse_object *arg; |
289 | union acpi_parse_object *parent; | |
290 | union acpi_operand_object *obj_desc = NULL; | |
291 | u32 package_list_length; | |
292 | acpi_status status = AE_OK; | |
defba1d8 | 293 | acpi_native_uint i; |
1da177e4 | 294 | |
4be44fcd | 295 | ACPI_FUNCTION_TRACE("ds_build_internal_package_obj"); |
1da177e4 LT |
296 | |
297 | /* Find the parent of a possibly nested package */ | |
298 | ||
299 | parent = op->common.parent; | |
4be44fcd LB |
300 | while ((parent->common.aml_opcode == AML_PACKAGE_OP) || |
301 | (parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) { | |
1da177e4 LT |
302 | parent = parent->common.parent; |
303 | } | |
304 | ||
defba1d8 BM |
305 | /* |
306 | * If we are evaluating a Named package object "Name (xxxx, Package)", | |
307 | * the package object already exists, otherwise it must be created. | |
308 | */ | |
1da177e4 | 309 | obj_desc = *obj_desc_ptr; |
defba1d8 | 310 | if (!obj_desc) { |
4be44fcd | 311 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE); |
1da177e4 LT |
312 | *obj_desc_ptr = obj_desc; |
313 | if (!obj_desc) { | |
4be44fcd | 314 | return_ACPI_STATUS(AE_NO_MEMORY); |
1da177e4 LT |
315 | } |
316 | ||
317 | obj_desc->package.node = parent->common.node; | |
318 | } | |
319 | ||
320 | obj_desc->package.count = package_length; | |
321 | ||
322 | /* Count the number of items in the package list */ | |
323 | ||
1da177e4 LT |
324 | arg = op->common.value.arg; |
325 | arg = arg->common.next; | |
defba1d8 | 326 | for (package_list_length = 0; arg; package_list_length++) { |
1da177e4 LT |
327 | arg = arg->common.next; |
328 | } | |
329 | ||
330 | /* | |
331 | * The package length (number of elements) will be the greater | |
332 | * of the specified length and the length of the initializer list | |
333 | */ | |
334 | if (package_list_length > package_length) { | |
335 | obj_desc->package.count = package_list_length; | |
336 | } | |
337 | ||
338 | /* | |
339 | * Allocate the pointer array (array of pointers to the | |
340 | * individual objects). Add an extra pointer slot so | |
341 | * that the list is always null terminated. | |
342 | */ | |
4be44fcd LB |
343 | obj_desc->package.elements = ACPI_MEM_CALLOCATE(((acpi_size) obj_desc-> |
344 | package.count + | |
345 | 1) * sizeof(void *)); | |
1da177e4 LT |
346 | |
347 | if (!obj_desc->package.elements) { | |
4be44fcd LB |
348 | acpi_ut_delete_object_desc(obj_desc); |
349 | return_ACPI_STATUS(AE_NO_MEMORY); | |
1da177e4 LT |
350 | } |
351 | ||
352 | /* | |
defba1d8 | 353 | * Initialize all elements of the package |
1da177e4 | 354 | */ |
1da177e4 LT |
355 | arg = op->common.value.arg; |
356 | arg = arg->common.next; | |
defba1d8 | 357 | for (i = 0; arg; i++) { |
1da177e4 LT |
358 | if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) { |
359 | /* Object (package or buffer) is already built */ | |
360 | ||
44f6c012 | 361 | obj_desc->package.elements[i] = |
4be44fcd LB |
362 | ACPI_CAST_PTR(union acpi_operand_object, |
363 | arg->common.node); | |
364 | } else { | |
365 | status = acpi_ds_build_internal_object(walk_state, arg, | |
366 | &obj_desc-> | |
367 | package. | |
368 | elements[i]); | |
1da177e4 | 369 | } |
1da177e4 LT |
370 | arg = arg->common.next; |
371 | } | |
372 | ||
373 | obj_desc->package.flags |= AOPOBJ_DATA_VALID; | |
4be44fcd LB |
374 | op->common.node = (struct acpi_namespace_node *)obj_desc; |
375 | return_ACPI_STATUS(status); | |
1da177e4 LT |
376 | } |
377 | ||
44f6c012 | 378 | /******************************************************************************* |
1da177e4 LT |
379 | * |
380 | * FUNCTION: acpi_ds_create_node | |
381 | * | |
382 | * PARAMETERS: walk_state - Current walk state | |
383 | * Node - NS Node to be initialized | |
384 | * Op - Parser object to be translated | |
385 | * | |
386 | * RETURN: Status | |
387 | * | |
388 | * DESCRIPTION: Create the object to be associated with a namespace node | |
389 | * | |
44f6c012 | 390 | ******************************************************************************/ |
1da177e4 LT |
391 | |
392 | acpi_status | |
4be44fcd LB |
393 | acpi_ds_create_node(struct acpi_walk_state *walk_state, |
394 | struct acpi_namespace_node *node, | |
395 | union acpi_parse_object *op) | |
1da177e4 | 396 | { |
4be44fcd LB |
397 | acpi_status status; |
398 | union acpi_operand_object *obj_desc; | |
1da177e4 | 399 | |
4be44fcd | 400 | ACPI_FUNCTION_TRACE_PTR("ds_create_node", op); |
1da177e4 LT |
401 | |
402 | /* | |
403 | * Because of the execution pass through the non-control-method | |
404 | * parts of the table, we can arrive here twice. Only init | |
405 | * the named object node the first time through | |
406 | */ | |
4be44fcd LB |
407 | if (acpi_ns_get_attached_object(node)) { |
408 | return_ACPI_STATUS(AE_OK); | |
1da177e4 LT |
409 | } |
410 | ||
411 | if (!op->common.value.arg) { | |
412 | /* No arguments, there is nothing to do */ | |
413 | ||
4be44fcd | 414 | return_ACPI_STATUS(AE_OK); |
1da177e4 LT |
415 | } |
416 | ||
417 | /* Build an internal object for the argument(s) */ | |
418 | ||
4be44fcd LB |
419 | status = acpi_ds_build_internal_object(walk_state, op->common.value.arg, |
420 | &obj_desc); | |
421 | if (ACPI_FAILURE(status)) { | |
422 | return_ACPI_STATUS(status); | |
1da177e4 LT |
423 | } |
424 | ||
425 | /* Re-type the object according to its argument */ | |
426 | ||
4be44fcd | 427 | node->type = ACPI_GET_OBJECT_TYPE(obj_desc); |
1da177e4 LT |
428 | |
429 | /* Attach obj to node */ | |
430 | ||
4be44fcd | 431 | status = acpi_ns_attach_object(node, obj_desc, node->type); |
1da177e4 LT |
432 | |
433 | /* Remove local reference to the object */ | |
434 | ||
4be44fcd LB |
435 | acpi_ut_remove_reference(obj_desc); |
436 | return_ACPI_STATUS(status); | |
1da177e4 LT |
437 | } |
438 | ||
4be44fcd | 439 | #endif /* ACPI_NO_METHOD_EXECUTION */ |
1da177e4 | 440 | |
44f6c012 | 441 | /******************************************************************************* |
1da177e4 LT |
442 | * |
443 | * FUNCTION: acpi_ds_init_object_from_op | |
444 | * | |
445 | * PARAMETERS: walk_state - Current walk state | |
446 | * Op - Parser op used to init the internal object | |
447 | * Opcode - AML opcode associated with the object | |
448 | * ret_obj_desc - Namespace object to be initialized | |
449 | * | |
450 | * RETURN: Status | |
451 | * | |
452 | * DESCRIPTION: Initialize a namespace object from a parser Op and its | |
453 | * associated arguments. The namespace object is a more compact | |
454 | * representation of the Op and its arguments. | |
455 | * | |
44f6c012 | 456 | ******************************************************************************/ |
1da177e4 LT |
457 | |
458 | acpi_status | |
4be44fcd LB |
459 | acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, |
460 | union acpi_parse_object *op, | |
461 | u16 opcode, | |
462 | union acpi_operand_object **ret_obj_desc) | |
1da177e4 | 463 | { |
4be44fcd LB |
464 | const struct acpi_opcode_info *op_info; |
465 | union acpi_operand_object *obj_desc; | |
466 | acpi_status status = AE_OK; | |
1da177e4 | 467 | |
4be44fcd | 468 | ACPI_FUNCTION_TRACE("ds_init_object_from_op"); |
1da177e4 LT |
469 | |
470 | obj_desc = *ret_obj_desc; | |
4be44fcd | 471 | op_info = acpi_ps_get_opcode_info(opcode); |
1da177e4 LT |
472 | if (op_info->class == AML_CLASS_UNKNOWN) { |
473 | /* Unknown opcode */ | |
474 | ||
4be44fcd | 475 | return_ACPI_STATUS(AE_TYPE); |
1da177e4 LT |
476 | } |
477 | ||
478 | /* Perform per-object initialization */ | |
479 | ||
4be44fcd | 480 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
1da177e4 LT |
481 | case ACPI_TYPE_BUFFER: |
482 | ||
483 | /* | |
484 | * Defer evaluation of Buffer term_arg operand | |
485 | */ | |
4be44fcd LB |
486 | obj_desc->buffer.node = (struct acpi_namespace_node *) |
487 | walk_state->operands[0]; | |
1da177e4 LT |
488 | obj_desc->buffer.aml_start = op->named.data; |
489 | obj_desc->buffer.aml_length = op->named.length; | |
490 | break; | |
491 | ||
1da177e4 LT |
492 | case ACPI_TYPE_PACKAGE: |
493 | ||
494 | /* | |
495 | * Defer evaluation of Package term_arg operand | |
496 | */ | |
4be44fcd LB |
497 | obj_desc->package.node = (struct acpi_namespace_node *) |
498 | walk_state->operands[0]; | |
1da177e4 LT |
499 | obj_desc->package.aml_start = op->named.data; |
500 | obj_desc->package.aml_length = op->named.length; | |
501 | break; | |
502 | ||
1da177e4 LT |
503 | case ACPI_TYPE_INTEGER: |
504 | ||
505 | switch (op_info->type) { | |
506 | case AML_TYPE_CONSTANT: | |
507 | /* | |
508 | * Resolve AML Constants here - AND ONLY HERE! | |
509 | * All constants are integers. | |
44f6c012 RM |
510 | * We mark the integer with a flag that indicates that it started |
511 | * life as a constant -- so that stores to constants will perform | |
512 | * as expected (noop). zero_op is used as a placeholder for optional | |
513 | * target operands. | |
1da177e4 LT |
514 | */ |
515 | obj_desc->common.flags = AOPOBJ_AML_CONSTANT; | |
516 | ||
517 | switch (opcode) { | |
518 | case AML_ZERO_OP: | |
519 | ||
520 | obj_desc->integer.value = 0; | |
521 | break; | |
522 | ||
523 | case AML_ONE_OP: | |
524 | ||
525 | obj_desc->integer.value = 1; | |
526 | break; | |
527 | ||
528 | case AML_ONES_OP: | |
529 | ||
530 | obj_desc->integer.value = ACPI_INTEGER_MAX; | |
531 | ||
532 | /* Truncate value if we are executing from a 32-bit ACPI table */ | |
533 | ||
534 | #ifndef ACPI_NO_METHOD_EXECUTION | |
4be44fcd | 535 | acpi_ex_truncate_for32bit_table(obj_desc); |
1da177e4 LT |
536 | #endif |
537 | break; | |
538 | ||
539 | case AML_REVISION_OP: | |
540 | ||
541 | obj_desc->integer.value = ACPI_CA_VERSION; | |
542 | break; | |
543 | ||
544 | default: | |
545 | ||
4be44fcd LB |
546 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
547 | "Unknown constant opcode %X\n", | |
548 | opcode)); | |
1da177e4 LT |
549 | status = AE_AML_OPERAND_TYPE; |
550 | break; | |
551 | } | |
552 | break; | |
553 | ||
1da177e4 LT |
554 | case AML_TYPE_LITERAL: |
555 | ||
556 | obj_desc->integer.value = op->common.value.integer; | |
6f42ccf2 | 557 | #ifndef ACPI_NO_METHOD_EXECUTION |
4be44fcd | 558 | acpi_ex_truncate_for32bit_table(obj_desc); |
6f42ccf2 | 559 | #endif |
1da177e4 LT |
560 | break; |
561 | ||
1da177e4 | 562 | default: |
4be44fcd LB |
563 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
564 | "Unknown Integer type %X\n", | |
565 | op_info->type)); | |
1da177e4 LT |
566 | status = AE_AML_OPERAND_TYPE; |
567 | break; | |
568 | } | |
569 | break; | |
570 | ||
1da177e4 LT |
571 | case ACPI_TYPE_STRING: |
572 | ||
573 | obj_desc->string.pointer = op->common.value.string; | |
4be44fcd LB |
574 | obj_desc->string.length = |
575 | (u32) ACPI_STRLEN(op->common.value.string); | |
1da177e4 LT |
576 | |
577 | /* | |
578 | * The string is contained in the ACPI table, don't ever try | |
579 | * to delete it | |
580 | */ | |
581 | obj_desc->common.flags |= AOPOBJ_STATIC_POINTER; | |
582 | break; | |
583 | ||
1da177e4 LT |
584 | case ACPI_TYPE_METHOD: |
585 | break; | |
586 | ||
1da177e4 LT |
587 | case ACPI_TYPE_LOCAL_REFERENCE: |
588 | ||
589 | switch (op_info->type) { | |
590 | case AML_TYPE_LOCAL_VARIABLE: | |
591 | ||
592 | /* Split the opcode into a base opcode + offset */ | |
593 | ||
594 | obj_desc->reference.opcode = AML_LOCAL_OP; | |
595 | obj_desc->reference.offset = opcode - AML_LOCAL_OP; | |
596 | ||
597 | #ifndef ACPI_NO_METHOD_EXECUTION | |
4be44fcd LB |
598 | status = acpi_ds_method_data_get_node(AML_LOCAL_OP, |
599 | obj_desc-> | |
600 | reference.offset, | |
601 | walk_state, | |
602 | (struct | |
603 | acpi_namespace_node | |
604 | **)&obj_desc-> | |
605 | reference.object); | |
1da177e4 LT |
606 | #endif |
607 | break; | |
608 | ||
1da177e4 LT |
609 | case AML_TYPE_METHOD_ARGUMENT: |
610 | ||
611 | /* Split the opcode into a base opcode + offset */ | |
612 | ||
613 | obj_desc->reference.opcode = AML_ARG_OP; | |
614 | obj_desc->reference.offset = opcode - AML_ARG_OP; | |
615 | ||
616 | #ifndef ACPI_NO_METHOD_EXECUTION | |
4be44fcd LB |
617 | status = acpi_ds_method_data_get_node(AML_ARG_OP, |
618 | obj_desc-> | |
619 | reference.offset, | |
620 | walk_state, | |
621 | (struct | |
622 | acpi_namespace_node | |
623 | **)&obj_desc-> | |
624 | reference.object); | |
1da177e4 LT |
625 | #endif |
626 | break; | |
627 | ||
4be44fcd | 628 | default: /* Other literals, etc.. */ |
1da177e4 LT |
629 | |
630 | if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { | |
631 | /* Node was saved in Op */ | |
632 | ||
633 | obj_desc->reference.node = op->common.node; | |
634 | } | |
635 | ||
636 | obj_desc->reference.opcode = opcode; | |
637 | break; | |
638 | } | |
639 | break; | |
640 | ||
1da177e4 LT |
641 | default: |
642 | ||
4be44fcd LB |
643 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
644 | "Unimplemented data type: %X\n", | |
645 | ACPI_GET_OBJECT_TYPE(obj_desc))); | |
1da177e4 LT |
646 | |
647 | status = AE_AML_OPERAND_TYPE; | |
648 | break; | |
649 | } | |
650 | ||
4be44fcd | 651 | return_ACPI_STATUS(status); |
1da177e4 | 652 | } |