Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: dswload - Dispatcher namespace load callbacks |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
Bob Moore | 4a90c7e | 2006-01-13 16:22:00 -0500 | [diff] [blame] | 8 | * Copyright (C) 2000 - 2006, R. Byron Moore |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <acpi/acpi.h> |
| 45 | #include <acpi/acparser.h> |
| 46 | #include <acpi/amlcode.h> |
| 47 | #include <acpi/acdispat.h> |
| 48 | #include <acpi/acinterp.h> |
| 49 | #include <acpi/acnamesp.h> |
| 50 | #include <acpi/acevents.h> |
| 51 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 52 | #ifdef ACPI_ASL_COMPILER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #include <acpi/acdisasm.h> |
| 54 | #endif |
| 55 | |
| 56 | #define _COMPONENT ACPI_DISPATCHER |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 57 | ACPI_MODULE_NAME("dswload") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | |
| 59 | /******************************************************************************* |
| 60 | * |
| 61 | * FUNCTION: acpi_ds_init_callbacks |
| 62 | * |
| 63 | * PARAMETERS: walk_state - Current state of the parse tree walk |
| 64 | * pass_number - 1, 2, or 3 |
| 65 | * |
| 66 | * RETURN: Status |
| 67 | * |
| 68 | * DESCRIPTION: Init walk state callbacks |
| 69 | * |
| 70 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 72 | acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | { |
| 74 | |
| 75 | switch (pass_number) { |
| 76 | case 1: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 77 | walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | |
| 78 | ACPI_PARSE_DELETE_TREE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | walk_state->descending_callback = acpi_ds_load1_begin_op; |
| 80 | walk_state->ascending_callback = acpi_ds_load1_end_op; |
| 81 | break; |
| 82 | |
| 83 | case 2: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 84 | walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | |
| 85 | ACPI_PARSE_DELETE_TREE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | walk_state->descending_callback = acpi_ds_load2_begin_op; |
| 87 | walk_state->ascending_callback = acpi_ds_load2_end_op; |
| 88 | break; |
| 89 | |
| 90 | case 3: |
| 91 | #ifndef ACPI_NO_METHOD_EXECUTION |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 92 | walk_state->parse_flags |= ACPI_PARSE_EXECUTE | |
| 93 | ACPI_PARSE_DELETE_TREE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | walk_state->descending_callback = acpi_ds_exec_begin_op; |
| 95 | walk_state->ascending_callback = acpi_ds_exec_end_op; |
| 96 | #endif |
| 97 | break; |
| 98 | |
| 99 | default: |
| 100 | return (AE_BAD_PARAMETER); |
| 101 | } |
| 102 | |
| 103 | return (AE_OK); |
| 104 | } |
| 105 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | /******************************************************************************* |
| 107 | * |
| 108 | * FUNCTION: acpi_ds_load1_begin_op |
| 109 | * |
| 110 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 111 | * out_op - Where to return op if a new one is created |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | * |
| 113 | * RETURN: Status |
| 114 | * |
| 115 | * DESCRIPTION: Descending callback used during the loading of ACPI tables. |
| 116 | * |
| 117 | ******************************************************************************/ |
| 118 | |
| 119 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 120 | acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, |
| 121 | union acpi_parse_object ** out_op) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 123 | union acpi_parse_object *op; |
| 124 | struct acpi_namespace_node *node; |
| 125 | acpi_status status; |
| 126 | acpi_object_type object_type; |
| 127 | char *path; |
| 128 | u32 flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 130 | ACPI_FUNCTION_TRACE(ds_load1_begin_op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | |
| 132 | op = walk_state->op; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 133 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, |
| 134 | walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | |
| 136 | /* We are only interested in opcodes that have an associated name */ |
| 137 | |
| 138 | if (op) { |
| 139 | if (!(walk_state->op_info->flags & AML_NAMED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | *out_op = op; |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 141 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | } |
| 143 | |
| 144 | /* Check if this object has already been installed in the namespace */ |
| 145 | |
| 146 | if (op->common.node) { |
| 147 | *out_op = op; |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 148 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | } |
| 150 | } |
| 151 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 152 | path = acpi_ps_get_next_namestring(&walk_state->parser_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
| 154 | /* Map the raw opcode into an internal object type */ |
| 155 | |
| 156 | object_type = walk_state->op_info->object_type; |
| 157 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 158 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 159 | "State=%p Op=%p [%s]\n", walk_state, op, |
| 160 | acpi_ut_get_type_name(object_type))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | |
| 162 | switch (walk_state->opcode) { |
| 163 | case AML_SCOPE_OP: |
| 164 | |
| 165 | /* |
| 166 | * The target name of the Scope() operator must exist at this point so |
| 167 | * that we can actually open the scope to enter new names underneath it. |
| 168 | * Allow search-to-root for single namesegs. |
| 169 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 170 | status = |
| 171 | acpi_ns_lookup(walk_state->scope_info, path, object_type, |
| 172 | ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, |
| 173 | walk_state, &(node)); |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 174 | #ifdef ACPI_ASL_COMPILER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | if (status == AE_NOT_FOUND) { |
| 176 | /* |
| 177 | * Table disassembly: |
| 178 | * Target of Scope() not found. Generate an External for it, and |
| 179 | * insert the name into the namespace. |
| 180 | */ |
Bob Moore | 958dd24 | 2006-05-12 17:12:00 -0400 | [diff] [blame] | 181 | acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 182 | status = |
| 183 | acpi_ns_lookup(walk_state->scope_info, path, |
| 184 | object_type, ACPI_IMODE_LOAD_PASS1, |
| 185 | ACPI_NS_SEARCH_PARENT, walk_state, |
Bob Moore | 958dd24 | 2006-05-12 17:12:00 -0400 | [diff] [blame] | 186 | &node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | } |
| 188 | #endif |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 189 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 190 | ACPI_ERROR_NAMESPACE(path, status); |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 191 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | /* |
| 195 | * Check to make sure that the target is |
| 196 | * one of the opcodes that actually opens a scope |
| 197 | */ |
| 198 | switch (node->type) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 199 | case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | case ACPI_TYPE_DEVICE: |
| 201 | case ACPI_TYPE_POWER: |
| 202 | case ACPI_TYPE_PROCESSOR: |
| 203 | case ACPI_TYPE_THERMAL: |
| 204 | |
| 205 | /* These are acceptable types */ |
| 206 | break; |
| 207 | |
| 208 | case ACPI_TYPE_INTEGER: |
| 209 | case ACPI_TYPE_STRING: |
| 210 | case ACPI_TYPE_BUFFER: |
| 211 | |
| 212 | /* |
| 213 | * These types we will allow, but we will change the type. This |
| 214 | * enables some existing code of the form: |
| 215 | * |
| 216 | * Name (DEB, 0) |
| 217 | * Scope (DEB) { ... } |
| 218 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 219 | * Note: silently change the type here. On the second pass, we will report |
| 220 | * a warning |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | */ |
| 222 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 223 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
| 224 | "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n", |
| 225 | path, |
| 226 | acpi_ut_get_type_name(node->type))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | |
| 228 | node->type = ACPI_TYPE_ANY; |
| 229 | walk_state->scope_info->common.value = ACPI_TYPE_ANY; |
| 230 | break; |
| 231 | |
| 232 | default: |
| 233 | |
| 234 | /* All other types are an error */ |
| 235 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 236 | ACPI_ERROR((AE_INFO, |
| 237 | "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)", |
| 238 | acpi_ut_get_type_name(node->type), path)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 240 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | } |
| 242 | break; |
| 243 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | default: |
| 245 | |
| 246 | /* |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 247 | * For all other named opcodes, we will enter the name into |
| 248 | * the namespace. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | * |
| 250 | * Setup the search flags. |
| 251 | * Since we are entering a name into the namespace, we do not want to |
| 252 | * enable the search-to-root upsearch. |
| 253 | * |
| 254 | * There are only two conditions where it is acceptable that the name |
| 255 | * already exists: |
| 256 | * 1) the Scope() operator can reopen a scoping object that was |
| 257 | * previously defined (Scope, Method, Device, etc.) |
| 258 | * 2) Whenever we are parsing a deferred opcode (op_region, Buffer, |
| 259 | * buffer_field, or Package), the name of the object is already |
| 260 | * in the namespace. |
| 261 | */ |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 262 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | if (walk_state->deferred_node) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 264 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | /* This name is already in the namespace, get the node */ |
| 266 | |
| 267 | node = walk_state->deferred_node; |
| 268 | status = AE_OK; |
| 269 | break; |
| 270 | } |
| 271 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 272 | /* |
| 273 | * If we are executing a method, do not create any namespace objects |
| 274 | * during the load phase, only during execution. |
| 275 | */ |
| 276 | if (walk_state->method_node) { |
| 277 | node = NULL; |
| 278 | status = AE_OK; |
| 279 | break; |
| 280 | } |
| 281 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | flags = ACPI_NS_NO_UPSEARCH; |
| 283 | if ((walk_state->opcode != AML_SCOPE_OP) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 284 | (!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | flags |= ACPI_NS_ERROR_IF_FOUND; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 286 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 287 | "[%s] Cannot already exist\n", |
| 288 | acpi_ut_get_type_name(object_type))); |
| 289 | } else { |
| 290 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 291 | "[%s] Both Find or Create allowed\n", |
| 292 | acpi_ut_get_type_name(object_type))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | } |
| 294 | |
| 295 | /* |
| 296 | * Enter the named type into the internal namespace. We enter the name |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 297 | * as we go downward in the parse tree. Any necessary subobjects that |
| 298 | * involve arguments to the opcode must be created as we go back up the |
| 299 | * parse tree later. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 301 | status = |
| 302 | acpi_ns_lookup(walk_state->scope_info, path, object_type, |
| 303 | ACPI_IMODE_LOAD_PASS1, flags, walk_state, |
Bob Moore | 958dd24 | 2006-05-12 17:12:00 -0400 | [diff] [blame] | 304 | &node); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 305 | if (ACPI_FAILURE(status)) { |
Bob Moore | 958dd24 | 2006-05-12 17:12:00 -0400 | [diff] [blame] | 306 | if (status == AE_ALREADY_EXISTS) { |
| 307 | |
| 308 | /* The name already exists in this scope */ |
| 309 | |
| 310 | if (node->flags & ANOBJ_IS_EXTERNAL) { |
| 311 | /* |
| 312 | * Allow one create on an object or segment that was |
| 313 | * previously declared External |
| 314 | */ |
| 315 | node->flags &= ~ANOBJ_IS_EXTERNAL; |
| 316 | node->type = (u8) object_type; |
| 317 | |
| 318 | /* Just retyped a node, probably will need to open a scope */ |
| 319 | |
| 320 | if (acpi_ns_opens_scope(object_type)) { |
| 321 | status = |
| 322 | acpi_ds_scope_stack_push |
| 323 | (node, object_type, |
| 324 | walk_state); |
| 325 | if (ACPI_FAILURE(status)) { |
| 326 | return_ACPI_STATUS |
| 327 | (status); |
| 328 | } |
| 329 | } |
| 330 | status = AE_OK; |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | if (ACPI_FAILURE(status)) { |
| 335 | |
| 336 | ACPI_ERROR_NAMESPACE(path, status); |
| 337 | return_ACPI_STATUS(status); |
| 338 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | } |
| 340 | break; |
| 341 | } |
| 342 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | /* Common exit */ |
| 344 | |
| 345 | if (!op) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 346 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | /* Create a new op */ |
| 348 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 349 | op = acpi_ps_alloc_op(walk_state->opcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | if (!op) { |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 351 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | } |
| 353 | } |
| 354 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 355 | /* Initialize the op */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
| 357 | #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)) |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 358 | op->named.path = ACPI_CAST_PTR(u8, path); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | #endif |
| 360 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 361 | if (node) { |
| 362 | /* |
| 363 | * Put the Node in the "op" object that the parser uses, so we |
| 364 | * can get it again quickly when this scope is closed |
| 365 | */ |
| 366 | op->common.node = node; |
| 367 | op->named.name = node->name.integer; |
| 368 | } |
| 369 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 370 | acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state->parser_state), |
| 371 | op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | *out_op = op; |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 373 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | } |
| 375 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | /******************************************************************************* |
| 377 | * |
| 378 | * FUNCTION: acpi_ds_load1_end_op |
| 379 | * |
| 380 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | * |
| 382 | * RETURN: Status |
| 383 | * |
| 384 | * DESCRIPTION: Ascending callback used during the loading of the namespace, |
| 385 | * both control methods and everything else. |
| 386 | * |
| 387 | ******************************************************************************/ |
| 388 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 389 | acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 391 | union acpi_parse_object *op; |
| 392 | acpi_object_type object_type; |
| 393 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 395 | ACPI_FUNCTION_TRACE(ds_load1_end_op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | |
| 397 | op = walk_state->op; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 398 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, |
| 399 | walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | |
| 401 | /* We are only interested in opcodes that have an associated name */ |
| 402 | |
| 403 | if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) { |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 404 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | } |
| 406 | |
| 407 | /* Get the object type to determine if we should pop the scope */ |
| 408 | |
| 409 | object_type = walk_state->op_info->object_type; |
| 410 | |
| 411 | #ifndef ACPI_NO_METHOD_EXECUTION |
| 412 | if (walk_state->op_info->flags & AML_FIELD) { |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 413 | /* |
| 414 | * If we are executing a method, do not create any namespace objects |
| 415 | * during the load phase, only during execution. |
| 416 | */ |
| 417 | if (!walk_state->method_node) { |
| 418 | if (walk_state->opcode == AML_FIELD_OP || |
| 419 | walk_state->opcode == AML_BANK_FIELD_OP || |
| 420 | walk_state->opcode == AML_INDEX_FIELD_OP) { |
| 421 | status = |
| 422 | acpi_ds_init_field_objects(op, walk_state); |
| 423 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | } |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 425 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | } |
| 427 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 428 | /* |
| 429 | * If we are executing a method, do not create any namespace objects |
| 430 | * during the load phase, only during execution. |
| 431 | */ |
| 432 | if (!walk_state->method_node) { |
| 433 | if (op->common.aml_opcode == AML_REGION_OP) { |
| 434 | status = |
| 435 | acpi_ex_create_region(op->named.data, |
| 436 | op->named.length, |
| 437 | (acpi_adr_space_type) |
| 438 | ((op->common.value.arg)-> |
| 439 | common.value.integer), |
| 440 | walk_state); |
| 441 | if (ACPI_FAILURE(status)) { |
| 442 | return_ACPI_STATUS(status); |
| 443 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | } |
| 445 | } |
| 446 | #endif |
| 447 | |
| 448 | if (op->common.aml_opcode == AML_NAME_OP) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 449 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | /* For Name opcode, get the object type from the argument */ |
| 451 | |
| 452 | if (op->common.value.arg) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 453 | object_type = (acpi_ps_get_opcode_info((op->common. |
| 454 | value.arg)-> |
| 455 | common. |
| 456 | aml_opcode))-> |
| 457 | object_type; |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 458 | |
| 459 | /* Set node type if we have a namespace node */ |
| 460 | |
| 461 | if (op->common.node) { |
| 462 | op->common.node->type = (u8) object_type; |
| 463 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | } |
| 465 | } |
| 466 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 467 | /* |
| 468 | * If we are executing a method, do not create any namespace objects |
| 469 | * during the load phase, only during execution. |
| 470 | */ |
| 471 | if (!walk_state->method_node) { |
| 472 | if (op->common.aml_opcode == AML_METHOD_OP) { |
| 473 | /* |
| 474 | * method_op pkg_length name_string method_flags term_list |
| 475 | * |
| 476 | * Note: We must create the method node/object pair as soon as we |
| 477 | * see the method declaration. This allows later pass1 parsing |
| 478 | * of invocations of the method (need to know the number of |
| 479 | * arguments.) |
| 480 | */ |
| 481 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 482 | "LOADING-Method: State=%p Op=%p NamedObj=%p\n", |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 483 | walk_state, op, op->named.node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 485 | if (!acpi_ns_get_attached_object(op->named.node)) { |
| 486 | walk_state->operands[0] = |
| 487 | ACPI_CAST_PTR(void, op->named.node); |
| 488 | walk_state->num_operands = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 490 | status = |
| 491 | acpi_ds_create_operands(walk_state, |
| 492 | op->common.value. |
| 493 | arg); |
| 494 | if (ACPI_SUCCESS(status)) { |
| 495 | status = |
| 496 | acpi_ex_create_method(op->named. |
| 497 | data, |
| 498 | op->named. |
| 499 | length, |
| 500 | walk_state); |
| 501 | } |
| 502 | walk_state->operands[0] = NULL; |
| 503 | walk_state->num_operands = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 505 | if (ACPI_FAILURE(status)) { |
| 506 | return_ACPI_STATUS(status); |
| 507 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | } |
| 509 | } |
| 510 | } |
| 511 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 512 | /* Pop the scope stack (only if loading a table) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 514 | if (!walk_state->method_node && acpi_ns_opens_scope(object_type)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 515 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 516 | "(%s): Popping scope for Op %p\n", |
| 517 | acpi_ut_get_type_name(object_type), op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 519 | status = acpi_ds_scope_stack_pop(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | } |
| 521 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 522 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | } |
| 524 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | /******************************************************************************* |
| 526 | * |
| 527 | * FUNCTION: acpi_ds_load2_begin_op |
| 528 | * |
| 529 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 530 | * out_op - Wher to return op if a new one is created |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | * |
| 532 | * RETURN: Status |
| 533 | * |
| 534 | * DESCRIPTION: Descending callback used during the loading of ACPI tables. |
| 535 | * |
| 536 | ******************************************************************************/ |
| 537 | |
| 538 | acpi_status |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 539 | acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, |
| 540 | union acpi_parse_object **out_op) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 542 | union acpi_parse_object *op; |
| 543 | struct acpi_namespace_node *node; |
| 544 | acpi_status status; |
| 545 | acpi_object_type object_type; |
| 546 | char *buffer_ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 548 | ACPI_FUNCTION_TRACE(ds_load2_begin_op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | |
| 550 | op = walk_state->op; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 551 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, |
| 552 | walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | |
| 554 | if (op) { |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 555 | if ((walk_state->control_state) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 556 | (walk_state->control_state->common.state == |
| 557 | ACPI_CONTROL_CONDITIONAL_EXECUTING)) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 558 | |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 559 | /* We are executing a while loop outside of a method */ |
| 560 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 561 | status = acpi_ds_exec_begin_op(walk_state, out_op); |
| 562 | return_ACPI_STATUS(status); |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 563 | } |
| 564 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | /* We only care about Namespace opcodes here */ |
| 566 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 567 | if ((!(walk_state->op_info->flags & AML_NSOPCODE) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 568 | (walk_state->opcode != AML_INT_NAMEPATH_OP)) || |
| 569 | (!(walk_state->op_info->flags & AML_NAMED))) { |
Robert Moore | aff8c27 | 2005-09-02 17:24:17 -0400 | [diff] [blame] | 570 | #ifdef ACPI_ENABLE_MODULE_LEVEL_CODE |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 571 | if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 572 | (walk_state->op_info->class == AML_CLASS_CONTROL)) { |
Robert Moore | aff8c27 | 2005-09-02 17:24:17 -0400 | [diff] [blame] | 573 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 574 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 575 | "Begin/EXEC: %s (fl %8.8X)\n", |
| 576 | walk_state->op_info->name, |
| 577 | walk_state->op_info->flags)); |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 578 | |
| 579 | /* Executing a type1 or type2 opcode outside of a method */ |
| 580 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 581 | status = |
| 582 | acpi_ds_exec_begin_op(walk_state, out_op); |
| 583 | return_ACPI_STATUS(status); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 584 | } |
Robert Moore | aff8c27 | 2005-09-02 17:24:17 -0400 | [diff] [blame] | 585 | #endif |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 586 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | } |
| 588 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 589 | /* Get the name we are going to enter or lookup in the namespace */ |
| 590 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | if (walk_state->opcode == AML_INT_NAMEPATH_OP) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 592 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | /* For Namepath op, get the path string */ |
| 594 | |
| 595 | buffer_ptr = op->common.value.string; |
| 596 | if (!buffer_ptr) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 597 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | /* No name, just exit */ |
| 599 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 600 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 602 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | /* Get name from the op */ |
| 604 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 605 | buffer_ptr = (char *)&op->named.name; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 607 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | /* Get the namestring from the raw AML */ |
| 609 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 610 | buffer_ptr = |
| 611 | acpi_ps_get_next_namestring(&walk_state->parser_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | } |
| 613 | |
| 614 | /* Map the opcode into an internal object type */ |
| 615 | |
| 616 | object_type = walk_state->op_info->object_type; |
| 617 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 618 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 619 | "State=%p Op=%p Type=%X\n", walk_state, op, |
| 620 | object_type)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | |
| 622 | switch (walk_state->opcode) { |
| 623 | case AML_FIELD_OP: |
| 624 | case AML_BANK_FIELD_OP: |
| 625 | case AML_INDEX_FIELD_OP: |
| 626 | |
| 627 | node = NULL; |
| 628 | status = AE_OK; |
| 629 | break; |
| 630 | |
| 631 | case AML_INT_NAMEPATH_OP: |
| 632 | |
| 633 | /* |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 634 | * The name_path is an object reference to an existing object. |
| 635 | * Don't enter the name into the namespace, but look it up |
| 636 | * for use later. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 638 | status = |
| 639 | acpi_ns_lookup(walk_state->scope_info, buffer_ptr, |
| 640 | object_type, ACPI_IMODE_EXECUTE, |
| 641 | ACPI_NS_SEARCH_PARENT, walk_state, &(node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | break; |
| 643 | |
| 644 | case AML_SCOPE_OP: |
| 645 | |
| 646 | /* |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 647 | * The Path is an object reference to an existing object. |
| 648 | * Don't enter the name into the namespace, but look it up |
| 649 | * for use later. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 651 | status = |
| 652 | acpi_ns_lookup(walk_state->scope_info, buffer_ptr, |
| 653 | object_type, ACPI_IMODE_EXECUTE, |
| 654 | ACPI_NS_SEARCH_PARENT, walk_state, &(node)); |
| 655 | if (ACPI_FAILURE(status)) { |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 656 | #ifdef ACPI_ASL_COMPILER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | if (status == AE_NOT_FOUND) { |
| 658 | status = AE_OK; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 659 | } else { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 660 | ACPI_ERROR_NAMESPACE(buffer_ptr, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | } |
| 662 | #else |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 663 | ACPI_ERROR_NAMESPACE(buffer_ptr, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | #endif |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 665 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | } |
| 667 | /* |
| 668 | * We must check to make sure that the target is |
| 669 | * one of the opcodes that actually opens a scope |
| 670 | */ |
| 671 | switch (node->type) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 672 | case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | case ACPI_TYPE_DEVICE: |
| 674 | case ACPI_TYPE_POWER: |
| 675 | case ACPI_TYPE_PROCESSOR: |
| 676 | case ACPI_TYPE_THERMAL: |
| 677 | |
| 678 | /* These are acceptable types */ |
| 679 | break; |
| 680 | |
| 681 | case ACPI_TYPE_INTEGER: |
| 682 | case ACPI_TYPE_STRING: |
| 683 | case ACPI_TYPE_BUFFER: |
| 684 | |
| 685 | /* |
| 686 | * These types we will allow, but we will change the type. This |
| 687 | * enables some existing code of the form: |
| 688 | * |
| 689 | * Name (DEB, 0) |
| 690 | * Scope (DEB) { ... } |
| 691 | */ |
| 692 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 693 | ACPI_WARNING((AE_INFO, |
| 694 | "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)", |
| 695 | buffer_ptr, |
| 696 | acpi_ut_get_type_name(node->type))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | |
| 698 | node->type = ACPI_TYPE_ANY; |
| 699 | walk_state->scope_info->common.value = ACPI_TYPE_ANY; |
| 700 | break; |
| 701 | |
| 702 | default: |
| 703 | |
| 704 | /* All other types are an error */ |
| 705 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 706 | ACPI_ERROR((AE_INFO, |
| 707 | "Invalid type (%s) for target of Scope operator [%4.4s]", |
| 708 | acpi_ut_get_type_name(node->type), |
| 709 | buffer_ptr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | |
| 711 | return (AE_AML_OPERAND_TYPE); |
| 712 | } |
| 713 | break; |
| 714 | |
| 715 | default: |
| 716 | |
| 717 | /* All other opcodes */ |
| 718 | |
| 719 | if (op && op->common.node) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 720 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | /* This op/node was previously entered into the namespace */ |
| 722 | |
| 723 | node = op->common.node; |
| 724 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 725 | if (acpi_ns_opens_scope(object_type)) { |
| 726 | status = |
| 727 | acpi_ds_scope_stack_push(node, object_type, |
| 728 | walk_state); |
| 729 | if (ACPI_FAILURE(status)) { |
| 730 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | } |
| 732 | |
| 733 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 734 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | } |
| 736 | |
| 737 | /* |
| 738 | * Enter the named type into the internal namespace. We enter the name |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 739 | * as we go downward in the parse tree. Any necessary subobjects that |
| 740 | * involve arguments to the opcode must be created as we go back up the |
| 741 | * parse tree later. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | * |
| 743 | * Note: Name may already exist if we are executing a deferred opcode. |
| 744 | */ |
| 745 | if (walk_state->deferred_node) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 746 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 747 | /* This name is already in the namespace, get the node */ |
| 748 | |
| 749 | node = walk_state->deferred_node; |
| 750 | status = AE_OK; |
| 751 | break; |
| 752 | } |
| 753 | |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 754 | /* Add new entry into namespace */ |
| 755 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 756 | status = |
| 757 | acpi_ns_lookup(walk_state->scope_info, buffer_ptr, |
| 758 | object_type, ACPI_IMODE_LOAD_PASS2, |
| 759 | ACPI_NS_NO_UPSEARCH, walk_state, &(node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | break; |
| 761 | } |
| 762 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 763 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 764 | ACPI_ERROR_NAMESPACE(buffer_ptr, status); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 765 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | } |
| 767 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | if (!op) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 769 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | /* Create a new op */ |
| 771 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 772 | op = acpi_ps_alloc_op(walk_state->opcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | if (!op) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 774 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | } |
| 776 | |
| 777 | /* Initialize the new op */ |
| 778 | |
| 779 | if (node) { |
| 780 | op->named.name = node->name.integer; |
| 781 | } |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 782 | *out_op = op; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | } |
| 784 | |
| 785 | /* |
| 786 | * Put the Node in the "op" object that the parser uses, so we |
| 787 | * can get it again quickly when this scope is closed |
| 788 | */ |
| 789 | op->common.node = node; |
| 790 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 791 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | } |
| 793 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | /******************************************************************************* |
| 795 | * |
| 796 | * FUNCTION: acpi_ds_load2_end_op |
| 797 | * |
| 798 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | * |
| 800 | * RETURN: Status |
| 801 | * |
| 802 | * DESCRIPTION: Ascending callback used during the loading of the namespace, |
| 803 | * both control methods and everything else. |
| 804 | * |
| 805 | ******************************************************************************/ |
| 806 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 807 | acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 809 | union acpi_parse_object *op; |
| 810 | acpi_status status = AE_OK; |
| 811 | acpi_object_type object_type; |
| 812 | struct acpi_namespace_node *node; |
| 813 | union acpi_parse_object *arg; |
| 814 | struct acpi_namespace_node *new_node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | #ifndef ACPI_NO_METHOD_EXECUTION |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 816 | u32 i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | #endif |
| 818 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 819 | ACPI_FUNCTION_TRACE(ds_load2_end_op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | |
| 821 | op = walk_state->op; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 822 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", |
| 823 | walk_state->op_info->name, op, walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 824 | |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 825 | /* Check if opcode had an associated namespace object */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | |
| 827 | if (!(walk_state->op_info->flags & AML_NSOBJECT)) { |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 828 | #ifndef ACPI_NO_METHOD_EXECUTION |
Robert Moore | aff8c27 | 2005-09-02 17:24:17 -0400 | [diff] [blame] | 829 | #ifdef ACPI_ENABLE_MODULE_LEVEL_CODE |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 830 | /* No namespace object. Executable opcode? */ |
| 831 | |
| 832 | if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 833 | (walk_state->op_info->class == AML_CLASS_CONTROL)) { |
| 834 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 835 | "End/EXEC: %s (fl %8.8X)\n", |
| 836 | walk_state->op_info->name, |
| 837 | walk_state->op_info->flags)); |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 838 | |
| 839 | /* Executing a type1 or type2 opcode outside of a method */ |
| 840 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 841 | status = acpi_ds_exec_end_op(walk_state); |
| 842 | return_ACPI_STATUS(status); |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 843 | } |
| 844 | #endif |
Robert Moore | aff8c27 | 2005-09-02 17:24:17 -0400 | [diff] [blame] | 845 | #endif |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 846 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | } |
| 848 | |
| 849 | if (op->common.aml_opcode == AML_SCOPE_OP) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 850 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 851 | "Ending scope Op=%p State=%p\n", op, |
| 852 | walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | } |
| 854 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | object_type = walk_state->op_info->object_type; |
| 856 | |
| 857 | /* |
| 858 | * Get the Node/name from the earlier lookup |
| 859 | * (It was saved in the *op structure) |
| 860 | */ |
| 861 | node = op->common.node; |
| 862 | |
| 863 | /* |
| 864 | * Put the Node on the object stack (Contains the ACPI Name of |
| 865 | * this object) |
| 866 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 867 | walk_state->operands[0] = (void *)node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | walk_state->num_operands = 1; |
| 869 | |
| 870 | /* Pop the scope stack */ |
| 871 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 872 | if (acpi_ns_opens_scope(object_type) && |
| 873 | (op->common.aml_opcode != AML_INT_METHODCALL_OP)) { |
| 874 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 875 | "(%s) Popping scope for Op %p\n", |
| 876 | acpi_ut_get_type_name(object_type), op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 878 | status = acpi_ds_scope_stack_pop(walk_state); |
| 879 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 880 | goto cleanup; |
| 881 | } |
| 882 | } |
| 883 | |
| 884 | /* |
| 885 | * Named operations are as follows: |
| 886 | * |
| 887 | * AML_ALIAS |
| 888 | * AML_BANKFIELD |
| 889 | * AML_CREATEBITFIELD |
| 890 | * AML_CREATEBYTEFIELD |
| 891 | * AML_CREATEDWORDFIELD |
| 892 | * AML_CREATEFIELD |
| 893 | * AML_CREATEQWORDFIELD |
| 894 | * AML_CREATEWORDFIELD |
| 895 | * AML_DATA_REGION |
| 896 | * AML_DEVICE |
| 897 | * AML_EVENT |
| 898 | * AML_FIELD |
| 899 | * AML_INDEXFIELD |
| 900 | * AML_METHOD |
| 901 | * AML_METHODCALL |
| 902 | * AML_MUTEX |
| 903 | * AML_NAME |
| 904 | * AML_NAMEDFIELD |
| 905 | * AML_OPREGION |
| 906 | * AML_POWERRES |
| 907 | * AML_PROCESSOR |
| 908 | * AML_SCOPE |
| 909 | * AML_THERMALZONE |
| 910 | */ |
| 911 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 912 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 913 | "Create-Load [%s] State=%p Op=%p NamedObj=%p\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 914 | acpi_ps_get_opcode_name(op->common.aml_opcode), |
| 915 | walk_state, op, node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | |
| 917 | /* Decode the opcode */ |
| 918 | |
| 919 | arg = op->common.value.arg; |
| 920 | |
| 921 | switch (walk_state->op_info->type) { |
| 922 | #ifndef ACPI_NO_METHOD_EXECUTION |
| 923 | |
| 924 | case AML_TYPE_CREATE_FIELD: |
| 925 | |
| 926 | /* |
| 927 | * Create the field object, but the field buffer and index must |
| 928 | * be evaluated later during the execution phase |
| 929 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 930 | status = acpi_ds_create_buffer_field(op, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | break; |
| 932 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 933 | case AML_TYPE_NAMED_FIELD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 935 | /* |
| 936 | * If we are executing a method, initialize the field |
| 937 | */ |
| 938 | if (walk_state->method_node) { |
| 939 | status = acpi_ds_init_field_objects(op, walk_state); |
| 940 | } |
| 941 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | switch (op->common.aml_opcode) { |
| 943 | case AML_INDEX_FIELD_OP: |
| 944 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 945 | status = |
| 946 | acpi_ds_create_index_field(op, |
| 947 | (acpi_handle) arg-> |
| 948 | common.node, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 949 | break; |
| 950 | |
| 951 | case AML_BANK_FIELD_OP: |
| 952 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 953 | status = |
| 954 | acpi_ds_create_bank_field(op, arg->common.node, |
| 955 | walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 956 | break; |
| 957 | |
| 958 | case AML_FIELD_OP: |
| 959 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 960 | status = |
| 961 | acpi_ds_create_field(op, arg->common.node, |
| 962 | walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | break; |
| 964 | |
| 965 | default: |
| 966 | /* All NAMED_FIELD opcodes must be handled above */ |
| 967 | break; |
| 968 | } |
| 969 | break; |
| 970 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 971 | case AML_TYPE_NAMED_SIMPLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 973 | status = acpi_ds_create_operands(walk_state, arg); |
| 974 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 975 | goto cleanup; |
| 976 | } |
| 977 | |
| 978 | switch (op->common.aml_opcode) { |
| 979 | case AML_PROCESSOR_OP: |
| 980 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 981 | status = acpi_ex_create_processor(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | break; |
| 983 | |
| 984 | case AML_POWER_RES_OP: |
| 985 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 986 | status = acpi_ex_create_power_resource(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | break; |
| 988 | |
| 989 | case AML_MUTEX_OP: |
| 990 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 991 | status = acpi_ex_create_mutex(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | break; |
| 993 | |
| 994 | case AML_EVENT_OP: |
| 995 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 996 | status = acpi_ex_create_event(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | break; |
| 998 | |
| 999 | case AML_DATA_REGION_OP: |
| 1000 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1001 | status = acpi_ex_create_table_region(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1002 | break; |
| 1003 | |
| 1004 | case AML_ALIAS_OP: |
| 1005 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1006 | status = acpi_ex_create_alias(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1007 | break; |
| 1008 | |
| 1009 | default: |
| 1010 | /* Unknown opcode */ |
| 1011 | |
| 1012 | status = AE_OK; |
| 1013 | goto cleanup; |
| 1014 | } |
| 1015 | |
| 1016 | /* Delete operands */ |
| 1017 | |
| 1018 | for (i = 1; i < walk_state->num_operands; i++) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1019 | acpi_ut_remove_reference(walk_state->operands[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | walk_state->operands[i] = NULL; |
| 1021 | } |
| 1022 | |
| 1023 | break; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1024 | #endif /* ACPI_NO_METHOD_EXECUTION */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | |
| 1026 | case AML_TYPE_NAMED_COMPLEX: |
| 1027 | |
| 1028 | switch (op->common.aml_opcode) { |
| 1029 | #ifndef ACPI_NO_METHOD_EXECUTION |
| 1030 | case AML_REGION_OP: |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 1031 | |
| 1032 | /* |
| 1033 | * If we are executing a method, initialize the region |
| 1034 | */ |
| 1035 | if (walk_state->method_node) { |
| 1036 | status = |
| 1037 | acpi_ex_create_region(op->named.data, |
| 1038 | op->named.length, |
| 1039 | (acpi_adr_space_type) |
| 1040 | ((op->common.value. |
| 1041 | arg)->common.value. |
| 1042 | integer), |
| 1043 | walk_state); |
| 1044 | if (ACPI_FAILURE(status)) { |
| 1045 | return (status); |
| 1046 | } |
| 1047 | } |
| 1048 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | /* |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 1050 | * The op_region is not fully parsed at this time. Only valid |
| 1051 | * argument is the space_id. (We must save the address of the |
| 1052 | * AML of the address and length operands) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | */ |
| 1054 | /* |
| 1055 | * If we have a valid region, initialize it |
| 1056 | * Namespace is NOT locked at this point. |
| 1057 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1058 | status = |
| 1059 | acpi_ev_initialize_region |
| 1060 | (acpi_ns_get_attached_object(node), FALSE); |
| 1061 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1062 | /* |
| 1063 | * If AE_NOT_EXIST is returned, it is not fatal |
| 1064 | * because many regions get created before a handler |
| 1065 | * is installed for said region. |
| 1066 | */ |
| 1067 | if (AE_NOT_EXIST == status) { |
| 1068 | status = AE_OK; |
| 1069 | } |
| 1070 | } |
| 1071 | break; |
| 1072 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | case AML_NAME_OP: |
| 1074 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1075 | status = acpi_ds_create_node(walk_state, node, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1076 | break; |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 1077 | |
| 1078 | case AML_METHOD_OP: |
| 1079 | /* |
| 1080 | * method_op pkg_length name_string method_flags term_list |
| 1081 | * |
| 1082 | * Note: We must create the method node/object pair as soon as we |
| 1083 | * see the method declaration. This allows later pass1 parsing |
| 1084 | * of invocations of the method (need to know the number of |
| 1085 | * arguments.) |
| 1086 | */ |
| 1087 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 1088 | "LOADING-Method: State=%p Op=%p NamedObj=%p\n", |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 1089 | walk_state, op, op->named.node)); |
| 1090 | |
| 1091 | if (!acpi_ns_get_attached_object(op->named.node)) { |
| 1092 | walk_state->operands[0] = |
| 1093 | ACPI_CAST_PTR(void, op->named.node); |
| 1094 | walk_state->num_operands = 1; |
| 1095 | |
| 1096 | status = |
| 1097 | acpi_ds_create_operands(walk_state, |
| 1098 | op->common.value. |
| 1099 | arg); |
| 1100 | if (ACPI_SUCCESS(status)) { |
| 1101 | status = |
| 1102 | acpi_ex_create_method(op->named. |
| 1103 | data, |
| 1104 | op->named. |
| 1105 | length, |
| 1106 | walk_state); |
| 1107 | } |
| 1108 | walk_state->operands[0] = NULL; |
| 1109 | walk_state->num_operands = 0; |
| 1110 | |
| 1111 | if (ACPI_FAILURE(status)) { |
| 1112 | return_ACPI_STATUS(status); |
| 1113 | } |
| 1114 | } |
| 1115 | break; |
| 1116 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1117 | #endif /* ACPI_NO_METHOD_EXECUTION */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | |
| 1119 | default: |
| 1120 | /* All NAMED_COMPLEX opcodes must be handled above */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1121 | break; |
| 1122 | } |
| 1123 | break; |
| 1124 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1125 | case AML_CLASS_INTERNAL: |
| 1126 | |
| 1127 | /* case AML_INT_NAMEPATH_OP: */ |
| 1128 | break; |
| 1129 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1130 | case AML_CLASS_METHOD_CALL: |
| 1131 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1132 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 1133 | "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1134 | walk_state, op, node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1135 | |
| 1136 | /* |
| 1137 | * Lookup the method name and save the Node |
| 1138 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1139 | status = |
| 1140 | acpi_ns_lookup(walk_state->scope_info, |
| 1141 | arg->common.value.string, ACPI_TYPE_ANY, |
| 1142 | ACPI_IMODE_LOAD_PASS2, |
| 1143 | ACPI_NS_SEARCH_PARENT | |
| 1144 | ACPI_NS_DONT_OPEN_SCOPE, walk_state, |
| 1145 | &(new_node)); |
| 1146 | if (ACPI_SUCCESS(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | /* |
| 1148 | * Make sure that what we found is indeed a method |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 1149 | * We didn't search for a method on purpose, to see if the name |
| 1150 | * would resolve |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | */ |
| 1152 | if (new_node->type != ACPI_TYPE_METHOD) { |
| 1153 | status = AE_AML_OPERAND_TYPE; |
| 1154 | } |
| 1155 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 1156 | /* We could put the returned object (Node) on the object stack for |
| 1157 | * later, but for now, we will put it in the "op" object that the |
| 1158 | * parser uses, so we can get it again at the end of this scope |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | */ |
| 1160 | op->common.node = new_node; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1161 | } else { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 1162 | ACPI_ERROR_NAMESPACE(arg->common.value.string, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1163 | } |
| 1164 | break; |
| 1165 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | default: |
| 1167 | break; |
| 1168 | } |
| 1169 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1170 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1171 | |
| 1172 | /* Remove the Node pushed at the very beginning */ |
| 1173 | |
| 1174 | walk_state->operands[0] = NULL; |
| 1175 | walk_state->num_operands = 0; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1176 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1177 | } |