nsobject.c revision 1.1.1.2.8.2
1 1.1.1.2.8.2 jruoho /******************************************************************************* 2 1.1.1.2.8.2 jruoho * 3 1.1.1.2.8.2 jruoho * Module Name: nsobject - Utilities for objects attached to namespace 4 1.1.1.2.8.2 jruoho * table entries 5 1.1.1.2.8.2 jruoho * 6 1.1.1.2.8.2 jruoho ******************************************************************************/ 7 1.1.1.2.8.2 jruoho 8 1.1.1.2.8.2 jruoho /* 9 1.1.1.2.8.2 jruoho * Copyright (C) 2000 - 2011, Intel Corp. 10 1.1.1.2.8.2 jruoho * All rights reserved. 11 1.1.1.2.8.2 jruoho * 12 1.1.1.2.8.2 jruoho * Redistribution and use in source and binary forms, with or without 13 1.1.1.2.8.2 jruoho * modification, are permitted provided that the following conditions 14 1.1.1.2.8.2 jruoho * are met: 15 1.1.1.2.8.2 jruoho * 1. Redistributions of source code must retain the above copyright 16 1.1.1.2.8.2 jruoho * notice, this list of conditions, and the following disclaimer, 17 1.1.1.2.8.2 jruoho * without modification. 18 1.1.1.2.8.2 jruoho * 2. Redistributions in binary form must reproduce at minimum a disclaimer 19 1.1.1.2.8.2 jruoho * substantially similar to the "NO WARRANTY" disclaimer below 20 1.1.1.2.8.2 jruoho * ("Disclaimer") and any redistribution must be conditioned upon 21 1.1.1.2.8.2 jruoho * including a substantially similar Disclaimer requirement for further 22 1.1.1.2.8.2 jruoho * binary redistribution. 23 1.1.1.2.8.2 jruoho * 3. Neither the names of the above-listed copyright holders nor the names 24 1.1.1.2.8.2 jruoho * of any contributors may be used to endorse or promote products derived 25 1.1.1.2.8.2 jruoho * from this software without specific prior written permission. 26 1.1.1.2.8.2 jruoho * 27 1.1.1.2.8.2 jruoho * Alternatively, this software may be distributed under the terms of the 28 1.1.1.2.8.2 jruoho * GNU General Public License ("GPL") version 2 as published by the Free 29 1.1.1.2.8.2 jruoho * Software Foundation. 30 1.1.1.2.8.2 jruoho * 31 1.1.1.2.8.2 jruoho * NO WARRANTY 32 1.1.1.2.8.2 jruoho * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 33 1.1.1.2.8.2 jruoho * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 34 1.1.1.2.8.2 jruoho * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 35 1.1.1.2.8.2 jruoho * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 36 1.1.1.2.8.2 jruoho * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 1.1.1.2.8.2 jruoho * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 1.1.1.2.8.2 jruoho * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 1.1.1.2.8.2 jruoho * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 40 1.1.1.2.8.2 jruoho * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 41 1.1.1.2.8.2 jruoho * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 42 1.1.1.2.8.2 jruoho * POSSIBILITY OF SUCH DAMAGES. 43 1.1.1.2.8.2 jruoho */ 44 1.1.1.2.8.2 jruoho 45 1.1.1.2.8.2 jruoho 46 1.1.1.2.8.2 jruoho #define __NSOBJECT_C__ 47 1.1.1.2.8.2 jruoho 48 1.1.1.2.8.2 jruoho #include "acpi.h" 49 1.1.1.2.8.2 jruoho #include "accommon.h" 50 1.1.1.2.8.2 jruoho #include "acnamesp.h" 51 1.1.1.2.8.2 jruoho 52 1.1.1.2.8.2 jruoho 53 1.1.1.2.8.2 jruoho #define _COMPONENT ACPI_NAMESPACE 54 1.1.1.2.8.2 jruoho ACPI_MODULE_NAME ("nsobject") 55 1.1.1.2.8.2 jruoho 56 1.1.1.2.8.2 jruoho 57 1.1.1.2.8.2 jruoho /******************************************************************************* 58 1.1.1.2.8.2 jruoho * 59 1.1.1.2.8.2 jruoho * FUNCTION: AcpiNsAttachObject 60 1.1.1.2.8.2 jruoho * 61 1.1.1.2.8.2 jruoho * PARAMETERS: Node - Parent Node 62 1.1.1.2.8.2 jruoho * Object - Object to be attached 63 1.1.1.2.8.2 jruoho * Type - Type of object, or ACPI_TYPE_ANY if not 64 1.1.1.2.8.2 jruoho * known 65 1.1.1.2.8.2 jruoho * 66 1.1.1.2.8.2 jruoho * RETURN: Status 67 1.1.1.2.8.2 jruoho * 68 1.1.1.2.8.2 jruoho * DESCRIPTION: Record the given object as the value associated with the 69 1.1.1.2.8.2 jruoho * name whose ACPI_HANDLE is passed. If Object is NULL 70 1.1.1.2.8.2 jruoho * and Type is ACPI_TYPE_ANY, set the name as having no value. 71 1.1.1.2.8.2 jruoho * Note: Future may require that the Node->Flags field be passed 72 1.1.1.2.8.2 jruoho * as a parameter. 73 1.1.1.2.8.2 jruoho * 74 1.1.1.2.8.2 jruoho * MUTEX: Assumes namespace is locked 75 1.1.1.2.8.2 jruoho * 76 1.1.1.2.8.2 jruoho ******************************************************************************/ 77 1.1.1.2.8.2 jruoho 78 1.1.1.2.8.2 jruoho ACPI_STATUS 79 1.1.1.2.8.2 jruoho AcpiNsAttachObject ( 80 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node, 81 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *Object, 82 1.1.1.2.8.2 jruoho ACPI_OBJECT_TYPE Type) 83 1.1.1.2.8.2 jruoho { 84 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc; 85 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *LastObjDesc; 86 1.1.1.2.8.2 jruoho ACPI_OBJECT_TYPE ObjectType = ACPI_TYPE_ANY; 87 1.1.1.2.8.2 jruoho 88 1.1.1.2.8.2 jruoho 89 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE (NsAttachObject); 90 1.1.1.2.8.2 jruoho 91 1.1.1.2.8.2 jruoho 92 1.1.1.2.8.2 jruoho /* 93 1.1.1.2.8.2 jruoho * Parameter validation 94 1.1.1.2.8.2 jruoho */ 95 1.1.1.2.8.2 jruoho if (!Node) 96 1.1.1.2.8.2 jruoho { 97 1.1.1.2.8.2 jruoho /* Invalid handle */ 98 1.1.1.2.8.2 jruoho 99 1.1.1.2.8.2 jruoho ACPI_ERROR ((AE_INFO, "Null NamedObj handle")); 100 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_BAD_PARAMETER); 101 1.1.1.2.8.2 jruoho } 102 1.1.1.2.8.2 jruoho 103 1.1.1.2.8.2 jruoho if (!Object && (ACPI_TYPE_ANY != Type)) 104 1.1.1.2.8.2 jruoho { 105 1.1.1.2.8.2 jruoho /* Null object */ 106 1.1.1.2.8.2 jruoho 107 1.1.1.2.8.2 jruoho ACPI_ERROR ((AE_INFO, 108 1.1.1.2.8.2 jruoho "Null object, but type not ACPI_TYPE_ANY")); 109 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_BAD_PARAMETER); 110 1.1.1.2.8.2 jruoho } 111 1.1.1.2.8.2 jruoho 112 1.1.1.2.8.2 jruoho if (ACPI_GET_DESCRIPTOR_TYPE (Node) != ACPI_DESC_TYPE_NAMED) 113 1.1.1.2.8.2 jruoho { 114 1.1.1.2.8.2 jruoho /* Not a name handle */ 115 1.1.1.2.8.2 jruoho 116 1.1.1.2.8.2 jruoho ACPI_ERROR ((AE_INFO, "Invalid handle %p [%s]", 117 1.1.1.2.8.2 jruoho Node, AcpiUtGetDescriptorName (Node))); 118 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_BAD_PARAMETER); 119 1.1.1.2.8.2 jruoho } 120 1.1.1.2.8.2 jruoho 121 1.1.1.2.8.2 jruoho /* Check if this object is already attached */ 122 1.1.1.2.8.2 jruoho 123 1.1.1.2.8.2 jruoho if (Node->Object == Object) 124 1.1.1.2.8.2 jruoho { 125 1.1.1.2.8.2 jruoho ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 126 1.1.1.2.8.2 jruoho "Obj %p already installed in NameObj %p\n", 127 1.1.1.2.8.2 jruoho Object, Node)); 128 1.1.1.2.8.2 jruoho 129 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_OK); 130 1.1.1.2.8.2 jruoho } 131 1.1.1.2.8.2 jruoho 132 1.1.1.2.8.2 jruoho /* If null object, we will just install it */ 133 1.1.1.2.8.2 jruoho 134 1.1.1.2.8.2 jruoho if (!Object) 135 1.1.1.2.8.2 jruoho { 136 1.1.1.2.8.2 jruoho ObjDesc = NULL; 137 1.1.1.2.8.2 jruoho ObjectType = ACPI_TYPE_ANY; 138 1.1.1.2.8.2 jruoho } 139 1.1.1.2.8.2 jruoho 140 1.1.1.2.8.2 jruoho /* 141 1.1.1.2.8.2 jruoho * If the source object is a namespace Node with an attached object, 142 1.1.1.2.8.2 jruoho * we will use that (attached) object 143 1.1.1.2.8.2 jruoho */ 144 1.1.1.2.8.2 jruoho else if ((ACPI_GET_DESCRIPTOR_TYPE (Object) == ACPI_DESC_TYPE_NAMED) && 145 1.1.1.2.8.2 jruoho ((ACPI_NAMESPACE_NODE *) Object)->Object) 146 1.1.1.2.8.2 jruoho { 147 1.1.1.2.8.2 jruoho /* 148 1.1.1.2.8.2 jruoho * Value passed is a name handle and that name has a 149 1.1.1.2.8.2 jruoho * non-null value. Use that name's value and type. 150 1.1.1.2.8.2 jruoho */ 151 1.1.1.2.8.2 jruoho ObjDesc = ((ACPI_NAMESPACE_NODE *) Object)->Object; 152 1.1.1.2.8.2 jruoho ObjectType = ((ACPI_NAMESPACE_NODE *) Object)->Type; 153 1.1.1.2.8.2 jruoho } 154 1.1.1.2.8.2 jruoho 155 1.1.1.2.8.2 jruoho /* 156 1.1.1.2.8.2 jruoho * Otherwise, we will use the parameter object, but we must type 157 1.1.1.2.8.2 jruoho * it first 158 1.1.1.2.8.2 jruoho */ 159 1.1.1.2.8.2 jruoho else 160 1.1.1.2.8.2 jruoho { 161 1.1.1.2.8.2 jruoho ObjDesc = (ACPI_OPERAND_OBJECT *) Object; 162 1.1.1.2.8.2 jruoho 163 1.1.1.2.8.2 jruoho /* Use the given type */ 164 1.1.1.2.8.2 jruoho 165 1.1.1.2.8.2 jruoho ObjectType = Type; 166 1.1.1.2.8.2 jruoho } 167 1.1.1.2.8.2 jruoho 168 1.1.1.2.8.2 jruoho ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n", 169 1.1.1.2.8.2 jruoho ObjDesc, Node, AcpiUtGetNodeName (Node))); 170 1.1.1.2.8.2 jruoho 171 1.1.1.2.8.2 jruoho /* Detach an existing attached object if present */ 172 1.1.1.2.8.2 jruoho 173 1.1.1.2.8.2 jruoho if (Node->Object) 174 1.1.1.2.8.2 jruoho { 175 1.1.1.2.8.2 jruoho AcpiNsDetachObject (Node); 176 1.1.1.2.8.2 jruoho } 177 1.1.1.2.8.2 jruoho 178 1.1.1.2.8.2 jruoho if (ObjDesc) 179 1.1.1.2.8.2 jruoho { 180 1.1.1.2.8.2 jruoho /* 181 1.1.1.2.8.2 jruoho * Must increment the new value's reference count 182 1.1.1.2.8.2 jruoho * (if it is an internal object) 183 1.1.1.2.8.2 jruoho */ 184 1.1.1.2.8.2 jruoho AcpiUtAddReference (ObjDesc); 185 1.1.1.2.8.2 jruoho 186 1.1.1.2.8.2 jruoho /* 187 1.1.1.2.8.2 jruoho * Handle objects with multiple descriptors - walk 188 1.1.1.2.8.2 jruoho * to the end of the descriptor list 189 1.1.1.2.8.2 jruoho */ 190 1.1.1.2.8.2 jruoho LastObjDesc = ObjDesc; 191 1.1.1.2.8.2 jruoho while (LastObjDesc->Common.NextObject) 192 1.1.1.2.8.2 jruoho { 193 1.1.1.2.8.2 jruoho LastObjDesc = LastObjDesc->Common.NextObject; 194 1.1.1.2.8.2 jruoho } 195 1.1.1.2.8.2 jruoho 196 1.1.1.2.8.2 jruoho /* Install the object at the front of the object list */ 197 1.1.1.2.8.2 jruoho 198 1.1.1.2.8.2 jruoho LastObjDesc->Common.NextObject = Node->Object; 199 1.1.1.2.8.2 jruoho } 200 1.1.1.2.8.2 jruoho 201 1.1.1.2.8.2 jruoho Node->Type = (UINT8) ObjectType; 202 1.1.1.2.8.2 jruoho Node->Object = ObjDesc; 203 1.1.1.2.8.2 jruoho 204 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_OK); 205 1.1.1.2.8.2 jruoho } 206 1.1.1.2.8.2 jruoho 207 1.1.1.2.8.2 jruoho 208 1.1.1.2.8.2 jruoho /******************************************************************************* 209 1.1.1.2.8.2 jruoho * 210 1.1.1.2.8.2 jruoho * FUNCTION: AcpiNsDetachObject 211 1.1.1.2.8.2 jruoho * 212 1.1.1.2.8.2 jruoho * PARAMETERS: Node - A Namespace node whose object will be detached 213 1.1.1.2.8.2 jruoho * 214 1.1.1.2.8.2 jruoho * RETURN: None. 215 1.1.1.2.8.2 jruoho * 216 1.1.1.2.8.2 jruoho * DESCRIPTION: Detach/delete an object associated with a namespace node. 217 1.1.1.2.8.2 jruoho * if the object is an allocated object, it is freed. 218 1.1.1.2.8.2 jruoho * Otherwise, the field is simply cleared. 219 1.1.1.2.8.2 jruoho * 220 1.1.1.2.8.2 jruoho ******************************************************************************/ 221 1.1.1.2.8.2 jruoho 222 1.1.1.2.8.2 jruoho void 223 1.1.1.2.8.2 jruoho AcpiNsDetachObject ( 224 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node) 225 1.1.1.2.8.2 jruoho { 226 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc; 227 1.1.1.2.8.2 jruoho 228 1.1.1.2.8.2 jruoho 229 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE (NsDetachObject); 230 1.1.1.2.8.2 jruoho 231 1.1.1.2.8.2 jruoho 232 1.1.1.2.8.2 jruoho ObjDesc = Node->Object; 233 1.1.1.2.8.2 jruoho 234 1.1.1.2.8.2 jruoho if (!ObjDesc || 235 1.1.1.2.8.2 jruoho (ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA)) 236 1.1.1.2.8.2 jruoho { 237 1.1.1.2.8.2 jruoho return_VOID; 238 1.1.1.2.8.2 jruoho } 239 1.1.1.2.8.2 jruoho 240 1.1.1.2.8.2 jruoho if (Node->Flags & ANOBJ_ALLOCATED_BUFFER) 241 1.1.1.2.8.2 jruoho { 242 1.1.1.2.8.2 jruoho /* Free the dynamic aml buffer */ 243 1.1.1.2.8.2 jruoho 244 1.1.1.2.8.2 jruoho if (ObjDesc->Common.Type == ACPI_TYPE_METHOD) 245 1.1.1.2.8.2 jruoho { 246 1.1.1.2.8.2 jruoho ACPI_FREE (ObjDesc->Method.AmlStart); 247 1.1.1.2.8.2 jruoho } 248 1.1.1.2.8.2 jruoho } 249 1.1.1.2.8.2 jruoho 250 1.1.1.2.8.2 jruoho /* Clear the entry in all cases */ 251 1.1.1.2.8.2 jruoho 252 1.1.1.2.8.2 jruoho Node->Object = NULL; 253 1.1.1.2.8.2 jruoho if (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_OPERAND) 254 1.1.1.2.8.2 jruoho { 255 1.1.1.2.8.2 jruoho Node->Object = ObjDesc->Common.NextObject; 256 1.1.1.2.8.2 jruoho if (Node->Object && 257 1.1.1.2.8.2 jruoho ((Node->Object)->Common.Type != ACPI_TYPE_LOCAL_DATA)) 258 1.1.1.2.8.2 jruoho { 259 1.1.1.2.8.2 jruoho Node->Object = Node->Object->Common.NextObject; 260 1.1.1.2.8.2 jruoho } 261 1.1.1.2.8.2 jruoho } 262 1.1.1.2.8.2 jruoho 263 1.1.1.2.8.2 jruoho /* Reset the node type to untyped */ 264 1.1.1.2.8.2 jruoho 265 1.1.1.2.8.2 jruoho Node->Type = ACPI_TYPE_ANY; 266 1.1.1.2.8.2 jruoho 267 1.1.1.2.8.2 jruoho ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n", 268 1.1.1.2.8.2 jruoho Node, AcpiUtGetNodeName (Node), ObjDesc)); 269 1.1.1.2.8.2 jruoho 270 1.1.1.2.8.2 jruoho /* Remove one reference on the object (and all subobjects) */ 271 1.1.1.2.8.2 jruoho 272 1.1.1.2.8.2 jruoho AcpiUtRemoveReference (ObjDesc); 273 1.1.1.2.8.2 jruoho return_VOID; 274 1.1.1.2.8.2 jruoho } 275 1.1.1.2.8.2 jruoho 276 1.1.1.2.8.2 jruoho 277 1.1.1.2.8.2 jruoho /******************************************************************************* 278 1.1.1.2.8.2 jruoho * 279 1.1.1.2.8.2 jruoho * FUNCTION: AcpiNsGetAttachedObject 280 1.1.1.2.8.2 jruoho * 281 1.1.1.2.8.2 jruoho * PARAMETERS: Node - Namespace node 282 1.1.1.2.8.2 jruoho * 283 1.1.1.2.8.2 jruoho * RETURN: Current value of the object field from the Node whose 284 1.1.1.2.8.2 jruoho * handle is passed 285 1.1.1.2.8.2 jruoho * 286 1.1.1.2.8.2 jruoho * DESCRIPTION: Obtain the object attached to a namespace node. 287 1.1.1.2.8.2 jruoho * 288 1.1.1.2.8.2 jruoho ******************************************************************************/ 289 1.1.1.2.8.2 jruoho 290 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT * 291 1.1.1.2.8.2 jruoho AcpiNsGetAttachedObject ( 292 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node) 293 1.1.1.2.8.2 jruoho { 294 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE_PTR (NsGetAttachedObject, Node); 295 1.1.1.2.8.2 jruoho 296 1.1.1.2.8.2 jruoho 297 1.1.1.2.8.2 jruoho if (!Node) 298 1.1.1.2.8.2 jruoho { 299 1.1.1.2.8.2 jruoho ACPI_WARNING ((AE_INFO, "Null Node ptr")); 300 1.1.1.2.8.2 jruoho return_PTR (NULL); 301 1.1.1.2.8.2 jruoho } 302 1.1.1.2.8.2 jruoho 303 1.1.1.2.8.2 jruoho if (!Node->Object || 304 1.1.1.2.8.2 jruoho ((ACPI_GET_DESCRIPTOR_TYPE (Node->Object) != ACPI_DESC_TYPE_OPERAND) && 305 1.1.1.2.8.2 jruoho (ACPI_GET_DESCRIPTOR_TYPE (Node->Object) != ACPI_DESC_TYPE_NAMED)) || 306 1.1.1.2.8.2 jruoho ((Node->Object)->Common.Type == ACPI_TYPE_LOCAL_DATA)) 307 1.1.1.2.8.2 jruoho { 308 1.1.1.2.8.2 jruoho return_PTR (NULL); 309 1.1.1.2.8.2 jruoho } 310 1.1.1.2.8.2 jruoho 311 1.1.1.2.8.2 jruoho return_PTR (Node->Object); 312 1.1.1.2.8.2 jruoho } 313 1.1.1.2.8.2 jruoho 314 1.1.1.2.8.2 jruoho 315 1.1.1.2.8.2 jruoho /******************************************************************************* 316 1.1.1.2.8.2 jruoho * 317 1.1.1.2.8.2 jruoho * FUNCTION: AcpiNsGetSecondaryObject 318 1.1.1.2.8.2 jruoho * 319 1.1.1.2.8.2 jruoho * PARAMETERS: Node - Namespace node 320 1.1.1.2.8.2 jruoho * 321 1.1.1.2.8.2 jruoho * RETURN: Current value of the object field from the Node whose 322 1.1.1.2.8.2 jruoho * handle is passed. 323 1.1.1.2.8.2 jruoho * 324 1.1.1.2.8.2 jruoho * DESCRIPTION: Obtain a secondary object associated with a namespace node. 325 1.1.1.2.8.2 jruoho * 326 1.1.1.2.8.2 jruoho ******************************************************************************/ 327 1.1.1.2.8.2 jruoho 328 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT * 329 1.1.1.2.8.2 jruoho AcpiNsGetSecondaryObject ( 330 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc) 331 1.1.1.2.8.2 jruoho { 332 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE_PTR (NsGetSecondaryObject, ObjDesc); 333 1.1.1.2.8.2 jruoho 334 1.1.1.2.8.2 jruoho 335 1.1.1.2.8.2 jruoho if ((!ObjDesc) || 336 1.1.1.2.8.2 jruoho (ObjDesc->Common.Type== ACPI_TYPE_LOCAL_DATA) || 337 1.1.1.2.8.2 jruoho (!ObjDesc->Common.NextObject) || 338 1.1.1.2.8.2 jruoho ((ObjDesc->Common.NextObject)->Common.Type == ACPI_TYPE_LOCAL_DATA)) 339 1.1.1.2.8.2 jruoho { 340 1.1.1.2.8.2 jruoho return_PTR (NULL); 341 1.1.1.2.8.2 jruoho } 342 1.1.1.2.8.2 jruoho 343 1.1.1.2.8.2 jruoho return_PTR (ObjDesc->Common.NextObject); 344 1.1.1.2.8.2 jruoho } 345 1.1.1.2.8.2 jruoho 346 1.1.1.2.8.2 jruoho 347 1.1.1.2.8.2 jruoho /******************************************************************************* 348 1.1.1.2.8.2 jruoho * 349 1.1.1.2.8.2 jruoho * FUNCTION: AcpiNsAttachData 350 1.1.1.2.8.2 jruoho * 351 1.1.1.2.8.2 jruoho * PARAMETERS: Node - Namespace node 352 1.1.1.2.8.2 jruoho * Handler - Handler to be associated with the data 353 1.1.1.2.8.2 jruoho * Data - Data to be attached 354 1.1.1.2.8.2 jruoho * 355 1.1.1.2.8.2 jruoho * RETURN: Status 356 1.1.1.2.8.2 jruoho * 357 1.1.1.2.8.2 jruoho * DESCRIPTION: Low-level attach data. Create and attach a Data object. 358 1.1.1.2.8.2 jruoho * 359 1.1.1.2.8.2 jruoho ******************************************************************************/ 360 1.1.1.2.8.2 jruoho 361 1.1.1.2.8.2 jruoho ACPI_STATUS 362 1.1.1.2.8.2 jruoho AcpiNsAttachData ( 363 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node, 364 1.1.1.2.8.2 jruoho ACPI_OBJECT_HANDLER Handler, 365 1.1.1.2.8.2 jruoho void *Data) 366 1.1.1.2.8.2 jruoho { 367 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *PrevObjDesc; 368 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc; 369 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *DataDesc; 370 1.1.1.2.8.2 jruoho 371 1.1.1.2.8.2 jruoho 372 1.1.1.2.8.2 jruoho /* We only allow one attachment per handler */ 373 1.1.1.2.8.2 jruoho 374 1.1.1.2.8.2 jruoho PrevObjDesc = NULL; 375 1.1.1.2.8.2 jruoho ObjDesc = Node->Object; 376 1.1.1.2.8.2 jruoho while (ObjDesc) 377 1.1.1.2.8.2 jruoho { 378 1.1.1.2.8.2 jruoho if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA) && 379 1.1.1.2.8.2 jruoho (ObjDesc->Data.Handler == Handler)) 380 1.1.1.2.8.2 jruoho { 381 1.1.1.2.8.2 jruoho return (AE_ALREADY_EXISTS); 382 1.1.1.2.8.2 jruoho } 383 1.1.1.2.8.2 jruoho 384 1.1.1.2.8.2 jruoho PrevObjDesc = ObjDesc; 385 1.1.1.2.8.2 jruoho ObjDesc = ObjDesc->Common.NextObject; 386 1.1.1.2.8.2 jruoho } 387 1.1.1.2.8.2 jruoho 388 1.1.1.2.8.2 jruoho /* Create an internal object for the data */ 389 1.1.1.2.8.2 jruoho 390 1.1.1.2.8.2 jruoho DataDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_DATA); 391 1.1.1.2.8.2 jruoho if (!DataDesc) 392 1.1.1.2.8.2 jruoho { 393 1.1.1.2.8.2 jruoho return (AE_NO_MEMORY); 394 1.1.1.2.8.2 jruoho } 395 1.1.1.2.8.2 jruoho 396 1.1.1.2.8.2 jruoho DataDesc->Data.Handler = Handler; 397 1.1.1.2.8.2 jruoho DataDesc->Data.Pointer = Data; 398 1.1.1.2.8.2 jruoho 399 1.1.1.2.8.2 jruoho /* Install the data object */ 400 1.1.1.2.8.2 jruoho 401 1.1.1.2.8.2 jruoho if (PrevObjDesc) 402 1.1.1.2.8.2 jruoho { 403 1.1.1.2.8.2 jruoho PrevObjDesc->Common.NextObject = DataDesc; 404 1.1.1.2.8.2 jruoho } 405 1.1.1.2.8.2 jruoho else 406 1.1.1.2.8.2 jruoho { 407 1.1.1.2.8.2 jruoho Node->Object = DataDesc; 408 1.1.1.2.8.2 jruoho } 409 1.1.1.2.8.2 jruoho 410 1.1.1.2.8.2 jruoho return (AE_OK); 411 1.1.1.2.8.2 jruoho } 412 1.1.1.2.8.2 jruoho 413 1.1.1.2.8.2 jruoho 414 1.1.1.2.8.2 jruoho /******************************************************************************* 415 1.1.1.2.8.2 jruoho * 416 1.1.1.2.8.2 jruoho * FUNCTION: AcpiNsDetachData 417 1.1.1.2.8.2 jruoho * 418 1.1.1.2.8.2 jruoho * PARAMETERS: Node - Namespace node 419 1.1.1.2.8.2 jruoho * Handler - Handler associated with the data 420 1.1.1.2.8.2 jruoho * 421 1.1.1.2.8.2 jruoho * RETURN: Status 422 1.1.1.2.8.2 jruoho * 423 1.1.1.2.8.2 jruoho * DESCRIPTION: Low-level detach data. Delete the data node, but the caller 424 1.1.1.2.8.2 jruoho * is responsible for the actual data. 425 1.1.1.2.8.2 jruoho * 426 1.1.1.2.8.2 jruoho ******************************************************************************/ 427 1.1.1.2.8.2 jruoho 428 1.1.1.2.8.2 jruoho ACPI_STATUS 429 1.1.1.2.8.2 jruoho AcpiNsDetachData ( 430 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node, 431 1.1.1.2.8.2 jruoho ACPI_OBJECT_HANDLER Handler) 432 1.1.1.2.8.2 jruoho { 433 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc; 434 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *PrevObjDesc; 435 1.1.1.2.8.2 jruoho 436 1.1.1.2.8.2 jruoho 437 1.1.1.2.8.2 jruoho PrevObjDesc = NULL; 438 1.1.1.2.8.2 jruoho ObjDesc = Node->Object; 439 1.1.1.2.8.2 jruoho while (ObjDesc) 440 1.1.1.2.8.2 jruoho { 441 1.1.1.2.8.2 jruoho if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA) && 442 1.1.1.2.8.2 jruoho (ObjDesc->Data.Handler == Handler)) 443 1.1.1.2.8.2 jruoho { 444 1.1.1.2.8.2 jruoho if (PrevObjDesc) 445 1.1.1.2.8.2 jruoho { 446 1.1.1.2.8.2 jruoho PrevObjDesc->Common.NextObject = ObjDesc->Common.NextObject; 447 1.1.1.2.8.2 jruoho } 448 1.1.1.2.8.2 jruoho else 449 1.1.1.2.8.2 jruoho { 450 1.1.1.2.8.2 jruoho Node->Object = ObjDesc->Common.NextObject; 451 1.1.1.2.8.2 jruoho } 452 1.1.1.2.8.2 jruoho 453 1.1.1.2.8.2 jruoho AcpiUtRemoveReference (ObjDesc); 454 1.1.1.2.8.2 jruoho return (AE_OK); 455 1.1.1.2.8.2 jruoho } 456 1.1.1.2.8.2 jruoho 457 1.1.1.2.8.2 jruoho PrevObjDesc = ObjDesc; 458 1.1.1.2.8.2 jruoho ObjDesc = ObjDesc->Common.NextObject; 459 1.1.1.2.8.2 jruoho } 460 1.1.1.2.8.2 jruoho 461 1.1.1.2.8.2 jruoho return (AE_NOT_FOUND); 462 1.1.1.2.8.2 jruoho } 463 1.1.1.2.8.2 jruoho 464 1.1.1.2.8.2 jruoho 465 1.1.1.2.8.2 jruoho /******************************************************************************* 466 1.1.1.2.8.2 jruoho * 467 1.1.1.2.8.2 jruoho * FUNCTION: AcpiNsGetAttachedData 468 1.1.1.2.8.2 jruoho * 469 1.1.1.2.8.2 jruoho * PARAMETERS: Node - Namespace node 470 1.1.1.2.8.2 jruoho * Handler - Handler associated with the data 471 1.1.1.2.8.2 jruoho * Data - Where the data is returned 472 1.1.1.2.8.2 jruoho * 473 1.1.1.2.8.2 jruoho * RETURN: Status 474 1.1.1.2.8.2 jruoho * 475 1.1.1.2.8.2 jruoho * DESCRIPTION: Low level interface to obtain data previously associated with 476 1.1.1.2.8.2 jruoho * a namespace node. 477 1.1.1.2.8.2 jruoho * 478 1.1.1.2.8.2 jruoho ******************************************************************************/ 479 1.1.1.2.8.2 jruoho 480 1.1.1.2.8.2 jruoho ACPI_STATUS 481 1.1.1.2.8.2 jruoho AcpiNsGetAttachedData ( 482 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node, 483 1.1.1.2.8.2 jruoho ACPI_OBJECT_HANDLER Handler, 484 1.1.1.2.8.2 jruoho void **Data) 485 1.1.1.2.8.2 jruoho { 486 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc; 487 1.1.1.2.8.2 jruoho 488 1.1.1.2.8.2 jruoho 489 1.1.1.2.8.2 jruoho ObjDesc = Node->Object; 490 1.1.1.2.8.2 jruoho while (ObjDesc) 491 1.1.1.2.8.2 jruoho { 492 1.1.1.2.8.2 jruoho if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA) && 493 1.1.1.2.8.2 jruoho (ObjDesc->Data.Handler == Handler)) 494 1.1.1.2.8.2 jruoho { 495 1.1.1.2.8.2 jruoho *Data = ObjDesc->Data.Pointer; 496 1.1.1.2.8.2 jruoho return (AE_OK); 497 1.1.1.2.8.2 jruoho } 498 1.1.1.2.8.2 jruoho 499 1.1.1.2.8.2 jruoho ObjDesc = ObjDesc->Common.NextObject; 500 1.1.1.2.8.2 jruoho } 501 1.1.1.2.8.2 jruoho 502 1.1.1.2.8.2 jruoho return (AE_NOT_FOUND); 503 1.1.1.2.8.2 jruoho } 504 1.1.1.2.8.2 jruoho 505 1.1.1.2.8.2 jruoho 506
Indexes created Wed Oct 22 13:09:56 GMT 2025