Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: excreate - Named object creation |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
Bob Moore | b4e104e | 2011-01-17 11:05:40 +0800 | [diff] [blame^] | 8 | * Copyright (C) 2000 - 2011, 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 "acinterp.h" |
| 47 | #include "amlcode.h" |
| 48 | #include "acnamesp.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | #define _COMPONENT ACPI_EXECUTER |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 51 | ACPI_MODULE_NAME("excreate") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #ifndef ACPI_NO_METHOD_EXECUTION |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 53 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | * |
| 55 | * FUNCTION: acpi_ex_create_alias |
| 56 | * |
| 57 | * PARAMETERS: walk_state - Current state, contains operands |
| 58 | * |
| 59 | * RETURN: Status |
| 60 | * |
| 61 | * DESCRIPTION: Create a new named alias |
| 62 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 63 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 64 | acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 66 | struct acpi_namespace_node *target_node; |
| 67 | struct acpi_namespace_node *alias_node; |
| 68 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 70 | ACPI_FUNCTION_TRACE(ex_create_alias); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | |
| 72 | /* Get the source/alias operands (both namespace nodes) */ |
| 73 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 74 | alias_node = (struct acpi_namespace_node *)walk_state->operands[0]; |
| 75 | target_node = (struct acpi_namespace_node *)walk_state->operands[1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | |
| 77 | if ((target_node->type == ACPI_TYPE_LOCAL_ALIAS) || |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 78 | (target_node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | /* |
| 80 | * Dereference an existing alias so that we don't create a chain |
| 81 | * of aliases. With this code, we guarantee that an alias is |
| 82 | * always exactly one level of indirection away from the |
| 83 | * actual aliased name. |
| 84 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 85 | target_node = |
| 86 | ACPI_CAST_PTR(struct acpi_namespace_node, |
| 87 | target_node->object); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | /* |
| 91 | * For objects that can never change (i.e., the NS node will |
| 92 | * permanently point to the same object), we can simply attach |
| 93 | * the object to the new NS node. For other objects (such as |
| 94 | * Integers, buffers, etc.), we have to point the Alias node |
| 95 | * to the original Node. |
| 96 | */ |
| 97 | switch (target_node->type) { |
Bob Moore | 53cf174 | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 98 | |
| 99 | /* For these types, the sub-object can change dynamically via a Store */ |
| 100 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | case ACPI_TYPE_INTEGER: |
| 102 | case ACPI_TYPE_STRING: |
| 103 | case ACPI_TYPE_BUFFER: |
| 104 | case ACPI_TYPE_PACKAGE: |
| 105 | case ACPI_TYPE_BUFFER_FIELD: |
| 106 | |
| 107 | /* |
Bob Moore | 53cf174 | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 108 | * These types open a new scope, so we need the NS node in order to access |
| 109 | * any children. |
| 110 | */ |
| 111 | case ACPI_TYPE_DEVICE: |
| 112 | case ACPI_TYPE_POWER: |
| 113 | case ACPI_TYPE_PROCESSOR: |
| 114 | case ACPI_TYPE_THERMAL: |
| 115 | case ACPI_TYPE_LOCAL_SCOPE: |
| 116 | |
| 117 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | * The new alias has the type ALIAS and points to the original |
Bob Moore | 53cf174 | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 119 | * NS node, not the object itself. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | */ |
| 121 | alias_node->type = ACPI_TYPE_LOCAL_ALIAS; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 122 | alias_node->object = |
| 123 | ACPI_CAST_PTR(union acpi_operand_object, target_node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | break; |
| 125 | |
| 126 | case ACPI_TYPE_METHOD: |
| 127 | |
| 128 | /* |
Bob Moore | 53cf174 | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 129 | * Control method aliases need to be differentiated |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | */ |
| 131 | alias_node->type = ACPI_TYPE_LOCAL_METHOD_ALIAS; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 132 | alias_node->object = |
| 133 | ACPI_CAST_PTR(union acpi_operand_object, target_node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | break; |
| 135 | |
| 136 | default: |
| 137 | |
| 138 | /* Attach the original source object to the new Alias Node */ |
| 139 | |
| 140 | /* |
| 141 | * The new alias assumes the type of the target, and it points |
| 142 | * to the same object. The reference count of the object has an |
| 143 | * additional reference to prevent deletion out from under either the |
| 144 | * target node or the alias Node |
| 145 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 146 | status = acpi_ns_attach_object(alias_node, |
| 147 | acpi_ns_get_attached_object |
| 148 | (target_node), |
| 149 | target_node->type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | break; |
| 151 | } |
| 152 | |
| 153 | /* Since both operands are Nodes, we don't need to delete them */ |
| 154 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 155 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | } |
| 157 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 158 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | * |
| 160 | * FUNCTION: acpi_ex_create_event |
| 161 | * |
| 162 | * PARAMETERS: walk_state - Current state |
| 163 | * |
| 164 | * RETURN: Status |
| 165 | * |
| 166 | * DESCRIPTION: Create a new event object |
| 167 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 168 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 170 | acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 172 | acpi_status status; |
| 173 | union acpi_operand_object *obj_desc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 175 | ACPI_FUNCTION_TRACE(ex_create_event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 177 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | if (!obj_desc) { |
| 179 | status = AE_NO_MEMORY; |
| 180 | goto cleanup; |
| 181 | } |
| 182 | |
| 183 | /* |
| 184 | * Create the actual OS semaphore, with zero initial units -- meaning |
| 185 | * that the event is created in an unsignalled state |
| 186 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 187 | status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 188 | &obj_desc->event.os_semaphore); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 189 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | goto cleanup; |
| 191 | } |
| 192 | |
| 193 | /* Attach object to the Node */ |
| 194 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 195 | status = |
| 196 | acpi_ns_attach_object((struct acpi_namespace_node *)walk_state-> |
| 197 | operands[0], obj_desc, ACPI_TYPE_EVENT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 199 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | /* |
| 201 | * Remove local reference to the object (on error, will cause deletion |
| 202 | * of both object and semaphore if present.) |
| 203 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 204 | acpi_ut_remove_reference(obj_desc); |
| 205 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | } |
| 207 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 208 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | * |
| 210 | * FUNCTION: acpi_ex_create_mutex |
| 211 | * |
| 212 | * PARAMETERS: walk_state - Current state |
| 213 | * |
| 214 | * RETURN: Status |
| 215 | * |
| 216 | * DESCRIPTION: Create a new mutex object |
| 217 | * |
| 218 | * Mutex (Name[0], sync_level[1]) |
| 219 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 220 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 222 | acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state) |
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_status status = AE_OK; |
| 225 | union acpi_operand_object *obj_desc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 227 | ACPI_FUNCTION_TRACE_PTR(ex_create_mutex, ACPI_WALK_OPERANDS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
| 229 | /* Create the new mutex object */ |
| 230 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 231 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | if (!obj_desc) { |
| 233 | status = AE_NO_MEMORY; |
| 234 | goto cleanup; |
| 235 | } |
| 236 | |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 237 | /* Create the actual OS Mutex */ |
| 238 | |
| 239 | status = acpi_os_create_mutex(&obj_desc->mutex.os_mutex); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 240 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | goto cleanup; |
| 242 | } |
| 243 | |
| 244 | /* Init object and attach to NS node */ |
| 245 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 246 | obj_desc->mutex.sync_level = |
| 247 | (u8) walk_state->operands[1]->integer.value; |
| 248 | obj_desc->mutex.node = |
| 249 | (struct acpi_namespace_node *)walk_state->operands[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 251 | status = |
| 252 | acpi_ns_attach_object(obj_desc->mutex.node, obj_desc, |
| 253 | ACPI_TYPE_MUTEX); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 255 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | /* |
| 257 | * Remove local reference to the object (on error, will cause deletion |
| 258 | * of both object and semaphore if present.) |
| 259 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 260 | acpi_ut_remove_reference(obj_desc); |
| 261 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | } |
| 263 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 264 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | * |
| 266 | * FUNCTION: acpi_ex_create_region |
| 267 | * |
| 268 | * PARAMETERS: aml_start - Pointer to the region declaration AML |
| 269 | * aml_length - Max length of the declaration AML |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 270 | * region_space - space_iD for the region |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | * walk_state - Current state |
| 272 | * |
| 273 | * RETURN: Status |
| 274 | * |
| 275 | * DESCRIPTION: Create a new operation region object |
| 276 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 277 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | |
| 279 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 280 | acpi_ex_create_region(u8 * aml_start, |
| 281 | u32 aml_length, |
| 282 | u8 region_space, struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 284 | acpi_status status; |
| 285 | union acpi_operand_object *obj_desc; |
| 286 | struct acpi_namespace_node *node; |
| 287 | union acpi_operand_object *region_obj2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 289 | ACPI_FUNCTION_TRACE(ex_create_region); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
| 291 | /* Get the Namespace Node */ |
| 292 | |
| 293 | node = walk_state->op->common.node; |
| 294 | |
| 295 | /* |
| 296 | * If the region object is already attached to this node, |
| 297 | * just return |
| 298 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 299 | if (acpi_ns_get_attached_object(node)) { |
| 300 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | } |
| 302 | |
| 303 | /* |
| 304 | * Space ID must be one of the predefined IDs, or in the user-defined |
| 305 | * range |
| 306 | */ |
| 307 | if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 308 | (region_space < ACPI_USER_REGION_BEGIN)) { |
Bob Moore | f6a22b0 | 2010-03-05 17:56:40 +0800 | [diff] [blame] | 309 | ACPI_ERROR((AE_INFO, "Invalid AddressSpace type 0x%X", |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 310 | region_space)); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 311 | return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | } |
| 313 | |
Bob Moore | f6a22b0 | 2010-03-05 17:56:40 +0800 | [diff] [blame] | 314 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Region Type - %s (0x%X)\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 315 | acpi_ut_get_region_name(region_space), region_space)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | |
| 317 | /* Create the region descriptor */ |
| 318 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 319 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | if (!obj_desc) { |
| 321 | status = AE_NO_MEMORY; |
| 322 | goto cleanup; |
| 323 | } |
| 324 | |
| 325 | /* |
| 326 | * Remember location in AML stream of address & length |
| 327 | * operands since they need to be evaluated at run time. |
| 328 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 329 | region_obj2 = obj_desc->common.next_object; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | region_obj2->extra.aml_start = aml_start; |
| 331 | region_obj2->extra.aml_length = aml_length; |
| 332 | |
| 333 | /* Init the region from the operands */ |
| 334 | |
| 335 | obj_desc->region.space_id = region_space; |
| 336 | obj_desc->region.address = 0; |
| 337 | obj_desc->region.length = 0; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 338 | obj_desc->region.node = node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | |
| 340 | /* Install the new region object in the parent Node */ |
| 341 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 342 | status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_REGION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 344 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | |
| 346 | /* Remove local reference to the object */ |
| 347 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 348 | acpi_ut_remove_reference(obj_desc); |
| 349 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | } |
| 351 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 352 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | * FUNCTION: acpi_ex_create_processor |
| 355 | * |
| 356 | * PARAMETERS: walk_state - Current state |
| 357 | * |
| 358 | * RETURN: Status |
| 359 | * |
| 360 | * DESCRIPTION: Create a new processor object and populate the fields |
| 361 | * |
| 362 | * Processor (Name[0], cpu_iD[1], pblock_addr[2], pblock_length[3]) |
| 363 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 364 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 366 | acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 368 | union acpi_operand_object **operand = &walk_state->operands[0]; |
| 369 | union acpi_operand_object *obj_desc; |
| 370 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 372 | ACPI_FUNCTION_TRACE_PTR(ex_create_processor, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | |
| 374 | /* Create the processor object */ |
| 375 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 376 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PROCESSOR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | if (!obj_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 378 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | } |
| 380 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 381 | /* Initialize the processor object from the operands */ |
| 382 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 383 | obj_desc->processor.proc_id = (u8) operand[1]->integer.value; |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 384 | obj_desc->processor.length = (u8) operand[3]->integer.value; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 385 | obj_desc->processor.address = |
| 386 | (acpi_io_address) operand[2]->integer.value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | |
| 388 | /* Install the processor object in the parent Node */ |
| 389 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 390 | status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], |
| 391 | obj_desc, ACPI_TYPE_PROCESSOR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
| 393 | /* Remove local reference to the object */ |
| 394 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 395 | acpi_ut_remove_reference(obj_desc); |
| 396 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | } |
| 398 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 399 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | * |
| 401 | * FUNCTION: acpi_ex_create_power_resource |
| 402 | * |
| 403 | * PARAMETERS: walk_state - Current state |
| 404 | * |
| 405 | * RETURN: Status |
| 406 | * |
| 407 | * DESCRIPTION: Create a new power_resource object and populate the fields |
| 408 | * |
| 409 | * power_resource (Name[0], system_level[1], resource_order[2]) |
| 410 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 411 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 413 | acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 415 | union acpi_operand_object **operand = &walk_state->operands[0]; |
| 416 | acpi_status status; |
| 417 | union acpi_operand_object *obj_desc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 419 | ACPI_FUNCTION_TRACE_PTR(ex_create_power_resource, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | |
| 421 | /* Create the power resource object */ |
| 422 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 423 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_POWER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | if (!obj_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 425 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | /* Initialize the power object from the operands */ |
| 429 | |
| 430 | obj_desc->power_resource.system_level = (u8) operand[1]->integer.value; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 431 | obj_desc->power_resource.resource_order = |
| 432 | (u16) operand[2]->integer.value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | |
| 434 | /* Install the power resource object in the parent Node */ |
| 435 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 436 | status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], |
| 437 | obj_desc, ACPI_TYPE_POWER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | |
| 439 | /* Remove local reference to the object */ |
| 440 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 441 | acpi_ut_remove_reference(obj_desc); |
| 442 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | #endif |
| 445 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 446 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | * |
| 448 | * FUNCTION: acpi_ex_create_method |
| 449 | * |
| 450 | * PARAMETERS: aml_start - First byte of the method's AML |
| 451 | * aml_length - AML byte count for this method |
| 452 | * walk_state - Current state |
| 453 | * |
| 454 | * RETURN: Status |
| 455 | * |
| 456 | * DESCRIPTION: Create a new method object |
| 457 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 458 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | |
| 460 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 461 | acpi_ex_create_method(u8 * aml_start, |
| 462 | u32 aml_length, struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 464 | union acpi_operand_object **operand = &walk_state->operands[0]; |
| 465 | union acpi_operand_object *obj_desc; |
| 466 | acpi_status status; |
| 467 | u8 method_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 469 | ACPI_FUNCTION_TRACE_PTR(ex_create_method, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | |
| 471 | /* Create a new method object */ |
| 472 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 473 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_METHOD); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | if (!obj_desc) { |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 475 | status = AE_NO_MEMORY; |
| 476 | goto exit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | } |
| 478 | |
| 479 | /* Save the method's AML pointer and length */ |
| 480 | |
| 481 | obj_desc->method.aml_start = aml_start; |
| 482 | obj_desc->method.aml_length = aml_length; |
| 483 | |
| 484 | /* |
Lin Ming | 2629484 | 2011-01-12 09:19:43 +0800 | [diff] [blame] | 485 | * Disassemble the method flags. Split off the arg_count, Serialized |
| 486 | * flag, and sync_level for efficiency. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | */ |
| 488 | method_flags = (u8) operand[1]->integer.value; |
| 489 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 490 | obj_desc->method.param_count = |
| 491 | (u8) (method_flags & AML_METHOD_ARG_COUNT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | |
| 493 | /* |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 494 | * Get the sync_level. If method is serialized, a mutex will be |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | * created for this method when it is parsed. |
| 496 | */ |
Len Brown | 4d2acd9 | 2007-05-09 22:56:38 -0400 | [diff] [blame] | 497 | if (method_flags & AML_METHOD_SERIALIZED) { |
Lin Ming | 2629484 | 2011-01-12 09:19:43 +0800 | [diff] [blame] | 498 | obj_desc->method.info_flags = ACPI_METHOD_SERIALIZED; |
| 499 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | /* |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 501 | * ACPI 1.0: sync_level = 0 |
| 502 | * ACPI 2.0: sync_level = sync_level in method declaration |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | */ |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 504 | obj_desc->method.sync_level = (u8) |
Lin Ming | b2f7ddc | 2009-05-21 10:42:09 +0800 | [diff] [blame] | 505 | ((method_flags & AML_METHOD_SYNC_LEVEL) >> 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | } |
| 507 | |
| 508 | /* Attach the new object to the method Node */ |
| 509 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 510 | status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], |
| 511 | obj_desc, ACPI_TYPE_METHOD); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | |
| 513 | /* Remove local reference to the object */ |
| 514 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 515 | acpi_ut_remove_reference(obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 517 | exit: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | /* Remove a reference to the operand */ |
| 519 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 520 | acpi_ut_remove_reference(operand[1]); |
| 521 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | } |