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 | /* |
Len Brown | 75a44ce | 2008-04-23 23:00:13 -0400 | [diff] [blame] | 8 | * Copyright (C) 2000 - 2008, Intel Corp. |
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> |
Len Brown | e2f7a77 | 2009-01-09 00:30:03 -0500 | [diff] [blame] | 45 | #include "accommon.h" |
| 46 | #include "acparser.h" |
| 47 | #include "amlcode.h" |
| 48 | #include "acdispat.h" |
| 49 | #include "acinterp.h" |
| 50 | #include "acnamesp.h" |
| 51 | #include "acevents.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 53 | #ifdef ACPI_ASL_COMPILER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | #include <acpi/acdisasm.h> |
| 55 | #endif |
| 56 | |
| 57 | #define _COMPONENT ACPI_DISPATCHER |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 58 | ACPI_MODULE_NAME("dswload") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | |
| 60 | /******************************************************************************* |
| 61 | * |
| 62 | * FUNCTION: acpi_ds_init_callbacks |
| 63 | * |
| 64 | * PARAMETERS: walk_state - Current state of the parse tree walk |
| 65 | * pass_number - 1, 2, or 3 |
| 66 | * |
| 67 | * RETURN: Status |
| 68 | * |
| 69 | * DESCRIPTION: Init walk state callbacks |
| 70 | * |
| 71 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 73 | 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] | 74 | { |
| 75 | |
| 76 | switch (pass_number) { |
| 77 | case 1: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 78 | walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | |
| 79 | ACPI_PARSE_DELETE_TREE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | walk_state->descending_callback = acpi_ds_load1_begin_op; |
| 81 | walk_state->ascending_callback = acpi_ds_load1_end_op; |
| 82 | break; |
| 83 | |
| 84 | case 2: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 85 | walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | |
| 86 | ACPI_PARSE_DELETE_TREE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | walk_state->descending_callback = acpi_ds_load2_begin_op; |
| 88 | walk_state->ascending_callback = acpi_ds_load2_end_op; |
| 89 | break; |
| 90 | |
| 91 | case 3: |
| 92 | #ifndef ACPI_NO_METHOD_EXECUTION |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 93 | walk_state->parse_flags |= ACPI_PARSE_EXECUTE | |
| 94 | ACPI_PARSE_DELETE_TREE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | walk_state->descending_callback = acpi_ds_exec_begin_op; |
| 96 | walk_state->ascending_callback = acpi_ds_exec_end_op; |
| 97 | #endif |
| 98 | break; |
| 99 | |
| 100 | default: |
| 101 | return (AE_BAD_PARAMETER); |
| 102 | } |
| 103 | |
| 104 | return (AE_OK); |
| 105 | } |
| 106 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | /******************************************************************************* |
| 108 | * |
| 109 | * FUNCTION: acpi_ds_load1_begin_op |
| 110 | * |
| 111 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 112 | * out_op - Where to return op if a new one is created |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | * |
| 114 | * RETURN: Status |
| 115 | * |
| 116 | * DESCRIPTION: Descending callback used during the loading of ACPI tables. |
| 117 | * |
| 118 | ******************************************************************************/ |
| 119 | |
| 120 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 121 | acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, |
| 122 | union acpi_parse_object ** out_op) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 124 | union acpi_parse_object *op; |
| 125 | struct acpi_namespace_node *node; |
| 126 | acpi_status status; |
| 127 | acpi_object_type object_type; |
| 128 | char *path; |
| 129 | u32 flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 131 | ACPI_FUNCTION_TRACE(ds_load1_begin_op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | |
| 133 | op = walk_state->op; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 134 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, |
| 135 | walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | |
| 137 | /* We are only interested in opcodes that have an associated name */ |
| 138 | |
| 139 | if (op) { |
| 140 | if (!(walk_state->op_info->flags & AML_NAMED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | *out_op = op; |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 142 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | } |
| 144 | |
| 145 | /* Check if this object has already been installed in the namespace */ |
| 146 | |
| 147 | if (op->common.node) { |
| 148 | *out_op = op; |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 149 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | } |
| 151 | } |
| 152 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 153 | path = acpi_ps_get_next_namestring(&walk_state->parser_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | |
| 155 | /* Map the raw opcode into an internal object type */ |
| 156 | |
| 157 | object_type = walk_state->op_info->object_type; |
| 158 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 159 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 160 | "State=%p Op=%p [%s]\n", walk_state, op, |
| 161 | acpi_ut_get_type_name(object_type))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | |
| 163 | switch (walk_state->opcode) { |
| 164 | case AML_SCOPE_OP: |
| 165 | |
| 166 | /* |
| 167 | * The target name of the Scope() operator must exist at this point so |
| 168 | * that we can actually open the scope to enter new names underneath it. |
| 169 | * Allow search-to-root for single namesegs. |
| 170 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 171 | status = |
| 172 | acpi_ns_lookup(walk_state->scope_info, path, object_type, |
| 173 | ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, |
| 174 | walk_state, &(node)); |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 175 | #ifdef ACPI_ASL_COMPILER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | if (status == AE_NOT_FOUND) { |
| 177 | /* |
| 178 | * Table disassembly: |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 179 | * Target of Scope() not found. Generate an External for it, and |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | * insert the name into the namespace. |
| 181 | */ |
Bob Moore | 958dd24 | 2006-05-12 17:12:00 -0400 | [diff] [blame] | 182 | acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 183 | status = |
| 184 | acpi_ns_lookup(walk_state->scope_info, path, |
| 185 | object_type, ACPI_IMODE_LOAD_PASS1, |
| 186 | ACPI_NS_SEARCH_PARENT, walk_state, |
Bob Moore | 958dd24 | 2006-05-12 17:12:00 -0400 | [diff] [blame] | 187 | &node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | } |
| 189 | #endif |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 190 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 191 | ACPI_ERROR_NAMESPACE(path, status); |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 192 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | } |
| 194 | |
| 195 | /* |
| 196 | * Check to make sure that the target is |
| 197 | * one of the opcodes that actually opens a scope |
| 198 | */ |
| 199 | switch (node->type) { |
Bob Moore | 15f0c0d | 2007-02-02 19:48:20 +0300 | [diff] [blame] | 200 | case ACPI_TYPE_ANY: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 201 | case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | case ACPI_TYPE_DEVICE: |
| 203 | case ACPI_TYPE_POWER: |
| 204 | case ACPI_TYPE_PROCESSOR: |
| 205 | case ACPI_TYPE_THERMAL: |
| 206 | |
| 207 | /* These are acceptable types */ |
| 208 | break; |
| 209 | |
| 210 | case ACPI_TYPE_INTEGER: |
| 211 | case ACPI_TYPE_STRING: |
| 212 | case ACPI_TYPE_BUFFER: |
| 213 | |
| 214 | /* |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 215 | * These types we will allow, but we will change the type. This |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | * enables some existing code of the form: |
| 217 | * |
| 218 | * Name (DEB, 0) |
| 219 | * Scope (DEB) { ... } |
| 220 | * |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 221 | * Note: silently change the type here. On the second pass, we will report |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 222 | * a warning |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 224 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
| 225 | "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n", |
| 226 | path, |
| 227 | acpi_ut_get_type_name(node->type))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
| 229 | node->type = ACPI_TYPE_ANY; |
| 230 | walk_state->scope_info->common.value = ACPI_TYPE_ANY; |
| 231 | break; |
| 232 | |
| 233 | default: |
| 234 | |
| 235 | /* All other types are an error */ |
| 236 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 237 | ACPI_ERROR((AE_INFO, |
| 238 | "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)", |
| 239 | acpi_ut_get_type_name(node->type), path)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 241 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | } |
| 243 | break; |
| 244 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | default: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
| 262 | if (walk_state->deferred_node) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 263 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | /* This name is already in the namespace, get the node */ |
| 265 | |
| 266 | node = walk_state->deferred_node; |
| 267 | status = AE_OK; |
| 268 | break; |
| 269 | } |
| 270 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 271 | /* |
| 272 | * If we are executing a method, do not create any namespace objects |
| 273 | * during the load phase, only during execution. |
| 274 | */ |
| 275 | if (walk_state->method_node) { |
| 276 | node = NULL; |
| 277 | status = AE_OK; |
| 278 | break; |
| 279 | } |
| 280 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | flags = ACPI_NS_NO_UPSEARCH; |
| 282 | if ((walk_state->opcode != AML_SCOPE_OP) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 283 | (!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | flags |= ACPI_NS_ERROR_IF_FOUND; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 285 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 286 | "[%s] Cannot already exist\n", |
| 287 | acpi_ut_get_type_name(object_type))); |
| 288 | } else { |
| 289 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 290 | "[%s] Both Find or Create allowed\n", |
| 291 | acpi_ut_get_type_name(object_type))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | /* |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 295 | * Enter the named type into the internal namespace. We enter the name |
| 296 | * as we go downward in the parse tree. Any necessary subobjects that |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 297 | * involve arguments to the opcode must be created as we go back up the |
| 298 | * parse tree later. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 300 | status = |
| 301 | acpi_ns_lookup(walk_state->scope_info, path, object_type, |
| 302 | ACPI_IMODE_LOAD_PASS1, flags, walk_state, |
Bob Moore | 958dd24 | 2006-05-12 17:12:00 -0400 | [diff] [blame] | 303 | &node); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 304 | if (ACPI_FAILURE(status)) { |
Bob Moore | 958dd24 | 2006-05-12 17:12:00 -0400 | [diff] [blame] | 305 | if (status == AE_ALREADY_EXISTS) { |
| 306 | |
| 307 | /* The name already exists in this scope */ |
| 308 | |
| 309 | if (node->flags & ANOBJ_IS_EXTERNAL) { |
| 310 | /* |
| 311 | * Allow one create on an object or segment that was |
| 312 | * previously declared External |
| 313 | */ |
| 314 | node->flags &= ~ANOBJ_IS_EXTERNAL; |
| 315 | node->type = (u8) object_type; |
| 316 | |
| 317 | /* Just retyped a node, probably will need to open a scope */ |
| 318 | |
| 319 | if (acpi_ns_opens_scope(object_type)) { |
| 320 | status = |
| 321 | acpi_ds_scope_stack_push |
| 322 | (node, object_type, |
| 323 | walk_state); |
| 324 | if (ACPI_FAILURE(status)) { |
| 325 | return_ACPI_STATUS |
| 326 | (status); |
| 327 | } |
| 328 | } |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 329 | |
Bob Moore | 958dd24 | 2006-05-12 17:12:00 -0400 | [diff] [blame] | 330 | status = AE_OK; |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | if (ACPI_FAILURE(status)) { |
Bob Moore | 958dd24 | 2006-05-12 17:12:00 -0400 | [diff] [blame] | 335 | ACPI_ERROR_NAMESPACE(path, status); |
| 336 | return_ACPI_STATUS(status); |
| 337 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | } |
| 339 | break; |
| 340 | } |
| 341 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | /* Common exit */ |
| 343 | |
| 344 | if (!op) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 345 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | /* Create a new op */ |
| 347 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 348 | op = acpi_ps_alloc_op(walk_state->opcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | if (!op) { |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 350 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | } |
| 352 | } |
| 353 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 354 | /* Initialize the op */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
| 356 | #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)) |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 357 | op->named.path = ACPI_CAST_PTR(u8, path); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | #endif |
| 359 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 360 | if (node) { |
| 361 | /* |
| 362 | * Put the Node in the "op" object that the parser uses, so we |
| 363 | * can get it again quickly when this scope is closed |
| 364 | */ |
| 365 | op->common.node = node; |
| 366 | op->named.name = node->name.integer; |
| 367 | } |
| 368 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 369 | acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state->parser_state), |
| 370 | op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | *out_op = op; |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 372 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | } |
| 374 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | /******************************************************************************* |
| 376 | * |
| 377 | * FUNCTION: acpi_ds_load1_end_op |
| 378 | * |
| 379 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | * |
| 381 | * RETURN: Status |
| 382 | * |
| 383 | * DESCRIPTION: Ascending callback used during the loading of the namespace, |
| 384 | * both control methods and everything else. |
| 385 | * |
| 386 | ******************************************************************************/ |
| 387 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 388 | 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] | 389 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 390 | union acpi_parse_object *op; |
| 391 | acpi_object_type object_type; |
| 392 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 394 | ACPI_FUNCTION_TRACE(ds_load1_end_op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | |
| 396 | op = walk_state->op; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 397 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, |
| 398 | walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | |
| 400 | /* We are only interested in opcodes that have an associated name */ |
| 401 | |
| 402 | if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) { |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 403 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | } |
| 405 | |
| 406 | /* Get the object type to determine if we should pop the scope */ |
| 407 | |
| 408 | object_type = walk_state->op_info->object_type; |
| 409 | |
| 410 | #ifndef ACPI_NO_METHOD_EXECUTION |
| 411 | if (walk_state->op_info->flags & AML_FIELD) { |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 412 | /* |
| 413 | * If we are executing a method, do not create any namespace objects |
| 414 | * during the load phase, only during execution. |
| 415 | */ |
| 416 | if (!walk_state->method_node) { |
| 417 | if (walk_state->opcode == AML_FIELD_OP || |
| 418 | walk_state->opcode == AML_BANK_FIELD_OP || |
| 419 | walk_state->opcode == AML_INDEX_FIELD_OP) { |
| 420 | status = |
| 421 | acpi_ds_init_field_objects(op, walk_state); |
| 422 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | } |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 424 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | } |
| 426 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 427 | /* |
| 428 | * If we are executing a method, do not create any namespace objects |
| 429 | * during the load phase, only during execution. |
| 430 | */ |
| 431 | if (!walk_state->method_node) { |
| 432 | if (op->common.aml_opcode == AML_REGION_OP) { |
| 433 | status = |
| 434 | acpi_ex_create_region(op->named.data, |
| 435 | op->named.length, |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 436 | (acpi_adr_space_type) ((op-> |
| 437 | common. |
| 438 | value. |
| 439 | arg)-> |
| 440 | common. |
| 441 | value. |
| 442 | integer), |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 443 | walk_state); |
| 444 | if (ACPI_FAILURE(status)) { |
| 445 | return_ACPI_STATUS(status); |
| 446 | } |
Lin Ming | 941f48b | 2008-04-10 19:06:41 +0400 | [diff] [blame] | 447 | } else if (op->common.aml_opcode == AML_DATA_REGION_OP) { |
| 448 | status = |
| 449 | acpi_ex_create_region(op->named.data, |
| 450 | op->named.length, |
| 451 | REGION_DATA_TABLE, |
| 452 | walk_state); |
| 453 | if (ACPI_FAILURE(status)) { |
| 454 | return_ACPI_STATUS(status); |
| 455 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | } |
| 457 | } |
| 458 | #endif |
| 459 | |
| 460 | if (op->common.aml_opcode == AML_NAME_OP) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 461 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | /* For Name opcode, get the object type from the argument */ |
| 463 | |
| 464 | if (op->common.value.arg) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 465 | object_type = (acpi_ps_get_opcode_info((op->common. |
| 466 | value.arg)-> |
| 467 | common. |
| 468 | aml_opcode))-> |
| 469 | object_type; |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 470 | |
| 471 | /* Set node type if we have a namespace node */ |
| 472 | |
| 473 | if (op->common.node) { |
| 474 | op->common.node->type = (u8) object_type; |
| 475 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | } |
| 477 | } |
| 478 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 479 | /* |
| 480 | * If we are executing a method, do not create any namespace objects |
| 481 | * during the load phase, only during execution. |
| 482 | */ |
| 483 | if (!walk_state->method_node) { |
| 484 | if (op->common.aml_opcode == AML_METHOD_OP) { |
| 485 | /* |
| 486 | * method_op pkg_length name_string method_flags term_list |
| 487 | * |
| 488 | * Note: We must create the method node/object pair as soon as we |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 489 | * see the method declaration. This allows later pass1 parsing |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 490 | * of invocations of the method (need to know the number of |
| 491 | * arguments.) |
| 492 | */ |
| 493 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 494 | "LOADING-Method: State=%p Op=%p NamedObj=%p\n", |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 495 | walk_state, op, op->named.node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 497 | if (!acpi_ns_get_attached_object(op->named.node)) { |
| 498 | walk_state->operands[0] = |
| 499 | ACPI_CAST_PTR(void, op->named.node); |
| 500 | walk_state->num_operands = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 502 | status = |
| 503 | acpi_ds_create_operands(walk_state, |
| 504 | op->common.value. |
| 505 | arg); |
| 506 | if (ACPI_SUCCESS(status)) { |
| 507 | status = |
| 508 | acpi_ex_create_method(op->named. |
| 509 | data, |
| 510 | op->named. |
| 511 | length, |
| 512 | walk_state); |
| 513 | } |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 514 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 515 | walk_state->operands[0] = NULL; |
| 516 | walk_state->num_operands = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 518 | if (ACPI_FAILURE(status)) { |
| 519 | return_ACPI_STATUS(status); |
| 520 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | } |
| 522 | } |
| 523 | } |
| 524 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 525 | /* Pop the scope stack (only if loading a table) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 527 | if (!walk_state->method_node && acpi_ns_opens_scope(object_type)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 528 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 529 | "(%s): Popping scope for Op %p\n", |
| 530 | acpi_ut_get_type_name(object_type), op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 532 | status = acpi_ds_scope_stack_pop(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | } |
| 534 | |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 535 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | } |
| 537 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | /******************************************************************************* |
| 539 | * |
| 540 | * FUNCTION: acpi_ds_load2_begin_op |
| 541 | * |
| 542 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 543 | * out_op - Wher to return op if a new one is created |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | * |
| 545 | * RETURN: Status |
| 546 | * |
| 547 | * DESCRIPTION: Descending callback used during the loading of ACPI tables. |
| 548 | * |
| 549 | ******************************************************************************/ |
| 550 | |
| 551 | acpi_status |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 552 | acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, |
| 553 | union acpi_parse_object **out_op) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 555 | union acpi_parse_object *op; |
| 556 | struct acpi_namespace_node *node; |
| 557 | acpi_status status; |
| 558 | acpi_object_type object_type; |
| 559 | char *buffer_ptr; |
Bob Moore | 13b572a | 2007-02-02 19:48:20 +0300 | [diff] [blame] | 560 | u32 flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 562 | ACPI_FUNCTION_TRACE(ds_load2_begin_op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | |
| 564 | op = walk_state->op; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 565 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, |
| 566 | walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | |
| 568 | if (op) { |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 569 | if ((walk_state->control_state) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 570 | (walk_state->control_state->common.state == |
| 571 | ACPI_CONTROL_CONDITIONAL_EXECUTING)) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 572 | |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 573 | /* We are executing a while loop outside of a method */ |
| 574 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 575 | status = acpi_ds_exec_begin_op(walk_state, out_op); |
| 576 | return_ACPI_STATUS(status); |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 577 | } |
| 578 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | /* We only care about Namespace opcodes here */ |
| 580 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 581 | if ((!(walk_state->op_info->flags & AML_NSOPCODE) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 582 | (walk_state->opcode != AML_INT_NAMEPATH_OP)) || |
| 583 | (!(walk_state->op_info->flags & AML_NAMED))) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 584 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | } |
| 586 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 587 | /* Get the name we are going to enter or lookup in the namespace */ |
| 588 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | if (walk_state->opcode == AML_INT_NAMEPATH_OP) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 590 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | /* For Namepath op, get the path string */ |
| 592 | |
| 593 | buffer_ptr = op->common.value.string; |
| 594 | if (!buffer_ptr) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 595 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | /* No name, just exit */ |
| 597 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 598 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 600 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | /* Get name from the op */ |
| 602 | |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 603 | buffer_ptr = ACPI_CAST_PTR(char, &op->named.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 605 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | /* Get the namestring from the raw AML */ |
| 607 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 608 | buffer_ptr = |
| 609 | acpi_ps_get_next_namestring(&walk_state->parser_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | /* Map the opcode into an internal object type */ |
| 613 | |
| 614 | object_type = walk_state->op_info->object_type; |
| 615 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 616 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 617 | "State=%p Op=%p Type=%X\n", walk_state, op, |
| 618 | object_type)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | |
| 620 | switch (walk_state->opcode) { |
| 621 | case AML_FIELD_OP: |
| 622 | case AML_BANK_FIELD_OP: |
| 623 | case AML_INDEX_FIELD_OP: |
| 624 | |
| 625 | node = NULL; |
| 626 | status = AE_OK; |
| 627 | break; |
| 628 | |
| 629 | case AML_INT_NAMEPATH_OP: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | /* |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 631 | * The name_path is an object reference to an existing object. |
| 632 | * Don't enter the name into the namespace, but look it up |
| 633 | * for use later. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 635 | status = |
| 636 | acpi_ns_lookup(walk_state->scope_info, buffer_ptr, |
| 637 | object_type, ACPI_IMODE_EXECUTE, |
| 638 | ACPI_NS_SEARCH_PARENT, walk_state, &(node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | break; |
| 640 | |
| 641 | case AML_SCOPE_OP: |
Lin Ming | 50b77ed | 2009-10-13 10:34:56 +0800 | [diff] [blame] | 642 | |
| 643 | /* Special case for Scope(\) -> refers to the Root node */ |
| 644 | |
| 645 | if (op && (op->named.node == acpi_gbl_root_node)) { |
| 646 | node = op->named.node; |
| 647 | |
| 648 | status = |
| 649 | acpi_ds_scope_stack_push(node, object_type, |
| 650 | walk_state); |
| 651 | if (ACPI_FAILURE(status)) { |
| 652 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | } |
Lin Ming | 50b77ed | 2009-10-13 10:34:56 +0800 | [diff] [blame] | 654 | } else { |
| 655 | /* |
| 656 | * The Path is an object reference to an existing object. |
| 657 | * Don't enter the name into the namespace, but look it up |
| 658 | * for use later. |
| 659 | */ |
| 660 | status = |
| 661 | acpi_ns_lookup(walk_state->scope_info, buffer_ptr, |
| 662 | object_type, ACPI_IMODE_EXECUTE, |
| 663 | ACPI_NS_SEARCH_PARENT, walk_state, |
| 664 | &(node)); |
| 665 | if (ACPI_FAILURE(status)) { |
| 666 | #ifdef ACPI_ASL_COMPILER |
| 667 | if (status == AE_NOT_FOUND) { |
| 668 | status = AE_OK; |
| 669 | } else { |
| 670 | ACPI_ERROR_NAMESPACE(buffer_ptr, |
| 671 | status); |
| 672 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | #else |
Lin Ming | 50b77ed | 2009-10-13 10:34:56 +0800 | [diff] [blame] | 674 | ACPI_ERROR_NAMESPACE(buffer_ptr, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | #endif |
Lin Ming | 50b77ed | 2009-10-13 10:34:56 +0800 | [diff] [blame] | 676 | return_ACPI_STATUS(status); |
| 677 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | } |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 679 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | /* |
| 681 | * We must check to make sure that the target is |
| 682 | * one of the opcodes that actually opens a scope |
| 683 | */ |
| 684 | switch (node->type) { |
Bob Moore | 15f0c0d | 2007-02-02 19:48:20 +0300 | [diff] [blame] | 685 | case ACPI_TYPE_ANY: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 686 | case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | case ACPI_TYPE_DEVICE: |
| 688 | case ACPI_TYPE_POWER: |
| 689 | case ACPI_TYPE_PROCESSOR: |
| 690 | case ACPI_TYPE_THERMAL: |
| 691 | |
| 692 | /* These are acceptable types */ |
| 693 | break; |
| 694 | |
| 695 | case ACPI_TYPE_INTEGER: |
| 696 | case ACPI_TYPE_STRING: |
| 697 | case ACPI_TYPE_BUFFER: |
| 698 | |
| 699 | /* |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 700 | * These types we will allow, but we will change the type. This |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | * enables some existing code of the form: |
| 702 | * |
| 703 | * Name (DEB, 0) |
| 704 | * Scope (DEB) { ... } |
| 705 | */ |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 706 | ACPI_WARNING((AE_INFO, |
| 707 | "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)", |
| 708 | buffer_ptr, |
| 709 | acpi_ut_get_type_name(node->type))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | |
| 711 | node->type = ACPI_TYPE_ANY; |
| 712 | walk_state->scope_info->common.value = ACPI_TYPE_ANY; |
| 713 | break; |
| 714 | |
| 715 | default: |
| 716 | |
| 717 | /* All other types are an error */ |
| 718 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 719 | ACPI_ERROR((AE_INFO, |
| 720 | "Invalid type (%s) for target of Scope operator [%4.4s]", |
| 721 | acpi_ut_get_type_name(node->type), |
| 722 | buffer_ptr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | |
| 724 | return (AE_AML_OPERAND_TYPE); |
| 725 | } |
| 726 | break; |
| 727 | |
| 728 | default: |
| 729 | |
| 730 | /* All other opcodes */ |
| 731 | |
| 732 | if (op && op->common.node) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 733 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | /* This op/node was previously entered into the namespace */ |
| 735 | |
| 736 | node = op->common.node; |
| 737 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 738 | if (acpi_ns_opens_scope(object_type)) { |
| 739 | status = |
| 740 | acpi_ds_scope_stack_push(node, object_type, |
| 741 | walk_state); |
| 742 | if (ACPI_FAILURE(status)) { |
| 743 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | } |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 746 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 747 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | } |
| 749 | |
| 750 | /* |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 751 | * Enter the named type into the internal namespace. We enter the name |
| 752 | * as we go downward in the parse tree. Any necessary subobjects that |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 753 | * involve arguments to the opcode must be created as we go back up the |
| 754 | * parse tree later. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | * |
| 756 | * Note: Name may already exist if we are executing a deferred opcode. |
| 757 | */ |
| 758 | if (walk_state->deferred_node) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 759 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | /* This name is already in the namespace, get the node */ |
| 761 | |
| 762 | node = walk_state->deferred_node; |
| 763 | status = AE_OK; |
| 764 | break; |
| 765 | } |
| 766 | |
Bob Moore | 13b572a | 2007-02-02 19:48:20 +0300 | [diff] [blame] | 767 | flags = ACPI_NS_NO_UPSEARCH; |
Bob Moore | ec3153f | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 768 | if (walk_state->pass_number == ACPI_IMODE_EXECUTE) { |
Bob Moore | 13b572a | 2007-02-02 19:48:20 +0300 | [diff] [blame] | 769 | |
Bob Moore | d1fdda83 | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 770 | /* Execution mode, node cannot already exist, node is temporary */ |
Bob Moore | 13b572a | 2007-02-02 19:48:20 +0300 | [diff] [blame] | 771 | |
Lin Ming | 7f0c826 | 2009-08-13 14:03:15 +0800 | [diff] [blame] | 772 | flags |= ACPI_NS_ERROR_IF_FOUND; |
| 773 | |
| 774 | if (! |
| 775 | (walk_state-> |
| 776 | parse_flags & ACPI_PARSE_MODULE_LEVEL)) { |
| 777 | flags |= ACPI_NS_TEMPORARY; |
| 778 | } |
Bob Moore | 13b572a | 2007-02-02 19:48:20 +0300 | [diff] [blame] | 779 | } |
| 780 | |
| 781 | /* Add new entry or lookup existing entry */ |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 782 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 783 | status = |
| 784 | acpi_ns_lookup(walk_state->scope_info, buffer_ptr, |
Bob Moore | 13b572a | 2007-02-02 19:48:20 +0300 | [diff] [blame] | 785 | object_type, ACPI_IMODE_LOAD_PASS2, flags, |
| 786 | walk_state, &node); |
Bob Moore | cca97b8 | 2008-04-10 19:06:44 +0400 | [diff] [blame] | 787 | |
| 788 | if (ACPI_SUCCESS(status) && (flags & ACPI_NS_TEMPORARY)) { |
| 789 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 790 | "***New Node [%4.4s] %p is temporary\n", |
| 791 | acpi_ut_get_node_name(node), node)); |
| 792 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | break; |
| 794 | } |
| 795 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 796 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 797 | ACPI_ERROR_NAMESPACE(buffer_ptr, status); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 798 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | } |
| 800 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | if (!op) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 802 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | /* Create a new op */ |
| 804 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 805 | op = acpi_ps_alloc_op(walk_state->opcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | if (!op) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 807 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | } |
| 809 | |
| 810 | /* Initialize the new op */ |
| 811 | |
| 812 | if (node) { |
| 813 | op->named.name = node->name.integer; |
| 814 | } |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 815 | *out_op = op; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | } |
| 817 | |
| 818 | /* |
| 819 | * Put the Node in the "op" object that the parser uses, so we |
| 820 | * can get it again quickly when this scope is closed |
| 821 | */ |
| 822 | op->common.node = node; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 823 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 824 | } |
| 825 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | /******************************************************************************* |
| 827 | * |
| 828 | * FUNCTION: acpi_ds_load2_end_op |
| 829 | * |
| 830 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | * |
| 832 | * RETURN: Status |
| 833 | * |
| 834 | * DESCRIPTION: Ascending callback used during the loading of the namespace, |
| 835 | * both control methods and everything else. |
| 836 | * |
| 837 | ******************************************************************************/ |
| 838 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 839 | 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] | 840 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 841 | union acpi_parse_object *op; |
| 842 | acpi_status status = AE_OK; |
| 843 | acpi_object_type object_type; |
| 844 | struct acpi_namespace_node *node; |
| 845 | union acpi_parse_object *arg; |
| 846 | struct acpi_namespace_node *new_node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | #ifndef ACPI_NO_METHOD_EXECUTION |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 848 | u32 i; |
Lin Ming | 941f48b | 2008-04-10 19:06:41 +0400 | [diff] [blame] | 849 | u8 region_space; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | #endif |
| 851 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 852 | ACPI_FUNCTION_TRACE(ds_load2_end_op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | |
| 854 | op = walk_state->op; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 855 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", |
| 856 | walk_state->op_info->name, op, walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 858 | /* Check if opcode had an associated namespace object */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | |
| 860 | if (!(walk_state->op_info->flags & AML_NSOBJECT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 861 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | } |
| 863 | |
| 864 | if (op->common.aml_opcode == AML_SCOPE_OP) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 865 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 866 | "Ending scope Op=%p State=%p\n", op, |
| 867 | walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | } |
| 869 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | object_type = walk_state->op_info->object_type; |
| 871 | |
| 872 | /* |
| 873 | * Get the Node/name from the earlier lookup |
| 874 | * (It was saved in the *op structure) |
| 875 | */ |
| 876 | node = op->common.node; |
| 877 | |
| 878 | /* |
| 879 | * Put the Node on the object stack (Contains the ACPI Name of |
| 880 | * this object) |
| 881 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 882 | walk_state->operands[0] = (void *)node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | walk_state->num_operands = 1; |
| 884 | |
| 885 | /* Pop the scope stack */ |
| 886 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 887 | if (acpi_ns_opens_scope(object_type) && |
| 888 | (op->common.aml_opcode != AML_INT_METHODCALL_OP)) { |
| 889 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 890 | "(%s) Popping scope for Op %p\n", |
| 891 | acpi_ut_get_type_name(object_type), op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 893 | status = acpi_ds_scope_stack_pop(walk_state); |
| 894 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | goto cleanup; |
| 896 | } |
| 897 | } |
| 898 | |
| 899 | /* |
| 900 | * Named operations are as follows: |
| 901 | * |
| 902 | * AML_ALIAS |
| 903 | * AML_BANKFIELD |
| 904 | * AML_CREATEBITFIELD |
| 905 | * AML_CREATEBYTEFIELD |
| 906 | * AML_CREATEDWORDFIELD |
| 907 | * AML_CREATEFIELD |
| 908 | * AML_CREATEQWORDFIELD |
| 909 | * AML_CREATEWORDFIELD |
| 910 | * AML_DATA_REGION |
| 911 | * AML_DEVICE |
| 912 | * AML_EVENT |
| 913 | * AML_FIELD |
| 914 | * AML_INDEXFIELD |
| 915 | * AML_METHOD |
| 916 | * AML_METHODCALL |
| 917 | * AML_MUTEX |
| 918 | * AML_NAME |
| 919 | * AML_NAMEDFIELD |
| 920 | * AML_OPREGION |
| 921 | * AML_POWERRES |
| 922 | * AML_PROCESSOR |
| 923 | * AML_SCOPE |
| 924 | * AML_THERMALZONE |
| 925 | */ |
| 926 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 927 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 928 | "Create-Load [%s] State=%p Op=%p NamedObj=%p\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 929 | acpi_ps_get_opcode_name(op->common.aml_opcode), |
| 930 | walk_state, op, node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | |
| 932 | /* Decode the opcode */ |
| 933 | |
| 934 | arg = op->common.value.arg; |
| 935 | |
| 936 | switch (walk_state->op_info->type) { |
| 937 | #ifndef ACPI_NO_METHOD_EXECUTION |
| 938 | |
| 939 | case AML_TYPE_CREATE_FIELD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 940 | /* |
| 941 | * Create the field object, but the field buffer and index must |
| 942 | * be evaluated later during the execution phase |
| 943 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 944 | status = acpi_ds_create_buffer_field(op, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | break; |
| 946 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 947 | case AML_TYPE_NAMED_FIELD: |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 948 | /* |
| 949 | * If we are executing a method, initialize the field |
| 950 | */ |
| 951 | if (walk_state->method_node) { |
| 952 | status = acpi_ds_init_field_objects(op, walk_state); |
| 953 | } |
| 954 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 955 | switch (op->common.aml_opcode) { |
| 956 | case AML_INDEX_FIELD_OP: |
| 957 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 958 | status = |
| 959 | acpi_ds_create_index_field(op, |
| 960 | (acpi_handle) arg-> |
| 961 | common.node, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 962 | break; |
| 963 | |
| 964 | case AML_BANK_FIELD_OP: |
| 965 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 966 | status = |
| 967 | acpi_ds_create_bank_field(op, arg->common.node, |
| 968 | walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 969 | break; |
| 970 | |
| 971 | case AML_FIELD_OP: |
| 972 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 973 | status = |
| 974 | acpi_ds_create_field(op, arg->common.node, |
| 975 | walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 976 | break; |
| 977 | |
| 978 | default: |
| 979 | /* All NAMED_FIELD opcodes must be handled above */ |
| 980 | break; |
| 981 | } |
| 982 | break; |
| 983 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 984 | case AML_TYPE_NAMED_SIMPLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 986 | status = acpi_ds_create_operands(walk_state, arg); |
| 987 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 988 | goto cleanup; |
| 989 | } |
| 990 | |
| 991 | switch (op->common.aml_opcode) { |
| 992 | case AML_PROCESSOR_OP: |
| 993 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 994 | status = acpi_ex_create_processor(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | break; |
| 996 | |
| 997 | case AML_POWER_RES_OP: |
| 998 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 999 | status = acpi_ex_create_power_resource(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | break; |
| 1001 | |
| 1002 | case AML_MUTEX_OP: |
| 1003 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1004 | status = acpi_ex_create_mutex(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | break; |
| 1006 | |
| 1007 | case AML_EVENT_OP: |
| 1008 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1009 | status = acpi_ex_create_event(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | break; |
| 1011 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | case AML_ALIAS_OP: |
| 1013 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1014 | status = acpi_ex_create_alias(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1015 | break; |
| 1016 | |
| 1017 | default: |
| 1018 | /* Unknown opcode */ |
| 1019 | |
| 1020 | status = AE_OK; |
| 1021 | goto cleanup; |
| 1022 | } |
| 1023 | |
| 1024 | /* Delete operands */ |
| 1025 | |
| 1026 | for (i = 1; i < walk_state->num_operands; i++) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1027 | acpi_ut_remove_reference(walk_state->operands[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | walk_state->operands[i] = NULL; |
| 1029 | } |
| 1030 | |
| 1031 | break; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1032 | #endif /* ACPI_NO_METHOD_EXECUTION */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | |
| 1034 | case AML_TYPE_NAMED_COMPLEX: |
| 1035 | |
| 1036 | switch (op->common.aml_opcode) { |
| 1037 | #ifndef ACPI_NO_METHOD_EXECUTION |
| 1038 | case AML_REGION_OP: |
Lin Ming | 941f48b | 2008-04-10 19:06:41 +0400 | [diff] [blame] | 1039 | case AML_DATA_REGION_OP: |
| 1040 | |
| 1041 | if (op->common.aml_opcode == AML_REGION_OP) { |
| 1042 | region_space = (acpi_adr_space_type) |
| 1043 | ((op->common.value.arg)->common.value. |
| 1044 | integer); |
| 1045 | } else { |
| 1046 | region_space = REGION_DATA_TABLE; |
| 1047 | } |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 1048 | |
| 1049 | /* |
| 1050 | * If we are executing a method, initialize the region |
| 1051 | */ |
| 1052 | if (walk_state->method_node) { |
| 1053 | status = |
| 1054 | acpi_ex_create_region(op->named.data, |
| 1055 | op->named.length, |
Lin Ming | 941f48b | 2008-04-10 19:06:41 +0400 | [diff] [blame] | 1056 | region_space, |
Bob Moore | 28f55eb | 2005-12-02 18:27:00 -0500 | [diff] [blame] | 1057 | walk_state); |
| 1058 | if (ACPI_FAILURE(status)) { |
| 1059 | return (status); |
| 1060 | } |
| 1061 | } |
| 1062 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | /* |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 1064 | * The op_region is not fully parsed at this time. Only valid |
| 1065 | * argument is the space_id. (We must save the address of the |
| 1066 | * AML of the address and length operands) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1067 | */ |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 1068 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | /* |
| 1070 | * If we have a valid region, initialize it |
| 1071 | * Namespace is NOT locked at this point. |
| 1072 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1073 | status = |
| 1074 | acpi_ev_initialize_region |
| 1075 | (acpi_ns_get_attached_object(node), FALSE); |
| 1076 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1077 | /* |
| 1078 | * If AE_NOT_EXIST is returned, it is not fatal |
| 1079 | * because many regions get created before a handler |
| 1080 | * is installed for said region. |
| 1081 | */ |
| 1082 | if (AE_NOT_EXIST == status) { |
| 1083 | status = AE_OK; |
| 1084 | } |
| 1085 | } |
| 1086 | break; |
| 1087 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | case AML_NAME_OP: |
| 1089 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1090 | status = acpi_ds_create_node(walk_state, node, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1091 | break; |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 1092 | |
| 1093 | case AML_METHOD_OP: |
| 1094 | /* |
| 1095 | * method_op pkg_length name_string method_flags term_list |
| 1096 | * |
| 1097 | * Note: We must create the method node/object pair as soon as we |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 1098 | * see the method declaration. This allows later pass1 parsing |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 1099 | * of invocations of the method (need to know the number of |
| 1100 | * arguments.) |
| 1101 | */ |
| 1102 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 1103 | "LOADING-Method: State=%p Op=%p NamedObj=%p\n", |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 1104 | walk_state, op, op->named.node)); |
| 1105 | |
| 1106 | if (!acpi_ns_get_attached_object(op->named.node)) { |
| 1107 | walk_state->operands[0] = |
| 1108 | ACPI_CAST_PTR(void, op->named.node); |
| 1109 | walk_state->num_operands = 1; |
| 1110 | |
| 1111 | status = |
| 1112 | acpi_ds_create_operands(walk_state, |
| 1113 | op->common.value. |
| 1114 | arg); |
| 1115 | if (ACPI_SUCCESS(status)) { |
| 1116 | status = |
| 1117 | acpi_ex_create_method(op->named. |
| 1118 | data, |
| 1119 | op->named. |
| 1120 | length, |
| 1121 | walk_state); |
| 1122 | } |
| 1123 | walk_state->operands[0] = NULL; |
| 1124 | walk_state->num_operands = 0; |
| 1125 | |
| 1126 | if (ACPI_FAILURE(status)) { |
| 1127 | return_ACPI_STATUS(status); |
| 1128 | } |
| 1129 | } |
| 1130 | break; |
| 1131 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1132 | #endif /* ACPI_NO_METHOD_EXECUTION */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | |
| 1134 | default: |
| 1135 | /* All NAMED_COMPLEX opcodes must be handled above */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | break; |
| 1137 | } |
| 1138 | break; |
| 1139 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1140 | case AML_CLASS_INTERNAL: |
| 1141 | |
| 1142 | /* case AML_INT_NAMEPATH_OP: */ |
| 1143 | break; |
| 1144 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1145 | case AML_CLASS_METHOD_CALL: |
| 1146 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1147 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 1148 | "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1149 | walk_state, op, node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1150 | |
| 1151 | /* |
| 1152 | * Lookup the method name and save the Node |
| 1153 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1154 | status = |
| 1155 | acpi_ns_lookup(walk_state->scope_info, |
| 1156 | arg->common.value.string, ACPI_TYPE_ANY, |
| 1157 | ACPI_IMODE_LOAD_PASS2, |
| 1158 | ACPI_NS_SEARCH_PARENT | |
| 1159 | ACPI_NS_DONT_OPEN_SCOPE, walk_state, |
| 1160 | &(new_node)); |
| 1161 | if (ACPI_SUCCESS(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1162 | /* |
| 1163 | * Make sure that what we found is indeed a method |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 1164 | * We didn't search for a method on purpose, to see if the name |
| 1165 | * would resolve |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | */ |
| 1167 | if (new_node->type != ACPI_TYPE_METHOD) { |
| 1168 | status = AE_AML_OPERAND_TYPE; |
| 1169 | } |
| 1170 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 1171 | /* We could put the returned object (Node) on the object stack for |
| 1172 | * later, but for now, we will put it in the "op" object that the |
| 1173 | * 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] | 1174 | */ |
| 1175 | op->common.node = new_node; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1176 | } else { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 1177 | ACPI_ERROR_NAMESPACE(arg->common.value.string, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1178 | } |
| 1179 | break; |
| 1180 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1181 | default: |
| 1182 | break; |
| 1183 | } |
| 1184 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1185 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1186 | |
| 1187 | /* Remove the Node pushed at the very beginning */ |
| 1188 | |
| 1189 | walk_state->operands[0] = NULL; |
| 1190 | walk_state->num_operands = 0; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1191 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1192 | } |