1 /****************************************************************************** 2 * 3 * Module Name: dsinit - Object initialization namespace walk 4 * $Revision: 1.17 $ 5 * 6 *****************************************************************************/ 7 8 /****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999 - 2005, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117 #define __DSINIT_C__ 118 119 #include "acpi.h" 120 #include "acdispat.h" 121 #include "acnamesp.h" 122 123 #define _COMPONENT ACPI_DISPATCHER 124 ACPI_MODULE_NAME ("dsinit") 125 126 /* Local prototypes */ 127 128 static ACPI_STATUS 129 AcpiDsInitOneObject ( 130 ACPI_HANDLE ObjHandle, 131 UINT32 Level, 132 void *Context, 133 void **ReturnValue); 134 135 136 /******************************************************************************* 137 * 138 * FUNCTION: AcpiDsInitOneObject 139 * 140 * PARAMETERS: ObjHandle - Node for the object 141 * Level - Current nesting level 142 * Context - Points to a init info struct 143 * ReturnValue - Not used 144 * 145 * RETURN: Status 146 * 147 * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object 148 * within the namespace. 149 * 150 * Currently, the only objects that require initialization are: 151 * 1) Methods 152 * 2) Operation Regions 153 * 154 ******************************************************************************/ 155 156 static ACPI_STATUS 157 AcpiDsInitOneObject ( 158 ACPI_HANDLE ObjHandle, 159 UINT32 Level, 160 void *Context, 161 void **ReturnValue) 162 { 163 ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context; 164 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; 165 ACPI_OBJECT_TYPE Type; 166 ACPI_STATUS Status; 167 168 169 ACPI_FUNCTION_NAME ("DsInitOneObject"); 170 171 172 /* 173 * We are only interested in NS nodes owned by the table that 174 * was just loaded 175 */ 176 if (Node->OwnerId != Info->TableDesc->OwnerId) 177 { 178 return (AE_OK); 179 } 180 181 Info->ObjectCount++; 182 183 /* And even then, we are only interested in a few object types */ 184 185 Type = AcpiNsGetType (ObjHandle); 186 187 switch (Type) 188 { 189 case ACPI_TYPE_REGION: 190 191 Status = AcpiDsInitializeRegion (ObjHandle); 192 if (ACPI_FAILURE (Status)) 193 { 194 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 195 "Region %p [%4.4s] - Init failure, %s\n", 196 ObjHandle, AcpiUtGetNodeName (ObjHandle), 197 AcpiFormatException (Status))); 198 } 199 200 Info->OpRegionCount++; 201 break; 202 203 204 case ACPI_TYPE_METHOD: 205 206 /* 207 * Print a dot for each method unless we are going to print 208 * the entire pathname 209 */ 210 if (!(AcpiDbgLevel & ACPI_LV_INIT_NAMES)) 211 { 212 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, ".")); 213 } 214 215 /* 216 * Set the execution data width (32 or 64) based upon the 217 * revision number of the parent ACPI table. 218 * TBD: This is really for possible future support of integer width 219 * on a per-table basis. Currently, we just use a global for the width. 220 */ 221 if (Info->TableDesc->Pointer->Revision == 1) 222 { 223 Node->Flags |= ANOBJ_DATA_WIDTH_32; 224 } 225 226 /* 227 * Always parse methods to detect errors, we will delete 228 * the parse tree below 229 */ 230 Status = AcpiDsParseMethod (ObjHandle); 231 if (ACPI_FAILURE (Status)) 232 { 233 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 234 "\n+Method %p [%4.4s] - parse failure, %s\n", 235 ObjHandle, AcpiUtGetNodeName (ObjHandle), 236 AcpiFormatException (Status))); 237 238 /* This parse failed, but we will continue parsing more methods */ 239 } 240 241 Info->MethodCount++; 242 break; 243 244 245 case ACPI_TYPE_DEVICE: 246 247 Info->DeviceCount++; 248 break; 249 250 251 default: 252 break; 253 } 254 255 /* 256 * We ignore errors from above, and always return OK, since 257 * we don't want to abort the walk on a single error. 258 */ 259 return (AE_OK); 260 } 261 262 263 /******************************************************************************* 264 * 265 * FUNCTION: AcpiDsInitializeObjects 266 * 267 * PARAMETERS: TableDesc - Descriptor for parent ACPI table 268 * StartNode - Root of subtree to be initialized. 269 * 270 * RETURN: Status 271 * 272 * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any 273 * necessary initialization on the objects found therein 274 * 275 ******************************************************************************/ 276 277 ACPI_STATUS 278 AcpiDsInitializeObjects ( 279 ACPI_TABLE_DESC *TableDesc, 280 ACPI_NAMESPACE_NODE *StartNode) 281 { 282 ACPI_STATUS Status; 283 ACPI_INIT_WALK_INFO Info; 284 285 286 ACPI_FUNCTION_TRACE ("DsInitializeObjects"); 287 288 289 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 290 "**** Starting initialization of namespace objects ****\n")); 291 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "Parsing all Control Methods:")); 292 293 Info.MethodCount = 0; 294 Info.OpRegionCount = 0; 295 Info.ObjectCount = 0; 296 Info.DeviceCount = 0; 297 Info.TableDesc = TableDesc; 298 299 /* Walk entire namespace from the supplied root */ 300 301 Status = AcpiWalkNamespace (ACPI_TYPE_ANY, StartNode, ACPI_UINT32_MAX, 302 AcpiDsInitOneObject, &Info, NULL); 303 if (ACPI_FAILURE (Status)) 304 { 305 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "WalkNamespace failed, %s\n", 306 AcpiFormatException (Status))); 307 } 308 309 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, 310 "\nTable [%4.4s](id %4.4X) - %hd Objects with %hd Devices %hd Methods %hd Regions\n", 311 TableDesc->Pointer->Signature, TableDesc->OwnerId, Info.ObjectCount, 312 Info.DeviceCount, Info.MethodCount, Info.OpRegionCount)); 313 314 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 315 "%hd Methods, %hd Regions\n", Info.MethodCount, Info.OpRegionCount)); 316 317 return_ACPI_STATUS (AE_OK); 318 } 319 320 321