1 /******************************************************************************
3 * Module Name: nsinit - namespace initialization
6 *****************************************************************************/
8 /******************************************************************************
12 * Some or all of this work - Copyright (c) 1999 - 2003, Intel Corp.
13 * All rights reserved.
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
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
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;
38 * The above copyright and patent license is granted only if the following
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.
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
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
73 * 3.4. Intel retains all right, title, and interest in and to the Original
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.
81 * 4. Disclaimer and Export Compliance
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
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
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.
115 *****************************************************************************/
116 /* $DragonFly: src/sys/contrib/dev/acpica/Attic/nsinit.c,v 1.1 2003/09/24 03:32:16 drhodus Exp $ */
119 #define __NSXFINIT_C__
122 #include "acnamesp.h"
123 #include "acdispat.h"
124 #include "acinterp.h"
126 #define _COMPONENT ACPI_NAMESPACE
127 ACPI_MODULE_NAME ("nsinit")
130 /*******************************************************************************
132 * FUNCTION: AcpiNsInitializeObjects
138 * DESCRIPTION: Walk the entire namespace and perform any necessary
139 * initialization on the objects found therein
141 ******************************************************************************/
144 AcpiNsInitializeObjects (
148 ACPI_INIT_WALK_INFO Info;
151 ACPI_FUNCTION_TRACE ("NsInitializeObjects");
154 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
155 "**** Starting initialization of namespace objects ****\n"));
156 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "Completing Region/Field/Buffer/Package initialization:"));
158 /* Set all init info to zero */
160 ACPI_MEMSET (&Info, 0, sizeof (ACPI_INIT_WALK_INFO));
162 /* Walk entire namespace from the supplied root */
164 Status = AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
165 ACPI_UINT32_MAX, AcpiNsInitOneObject,
167 if (ACPI_FAILURE (Status))
169 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "WalkNamespace failed! %s\n",
170 AcpiFormatException (Status)));
173 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
174 "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
175 Info.OpRegionInit, Info.OpRegionCount,
176 Info.FieldInit, Info.FieldCount,
177 Info.BufferInit, Info.BufferCount,
178 Info.PackageInit, Info.PackageCount, Info.ObjectCount));
180 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
181 "%hd Control Methods found\n", Info.MethodCount));
182 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
183 "%hd Op Regions found\n", Info.OpRegionCount));
185 return_ACPI_STATUS (AE_OK);
189 /*******************************************************************************
191 * FUNCTION: AcpiNsInitializeDevices
195 * RETURN: ACPI_STATUS
197 * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
198 * This means running _INI on all present devices.
200 * Note: We install PCI config space handler on region access,
203 ******************************************************************************/
206 AcpiNsInitializeDevices (
210 ACPI_DEVICE_WALK_INFO Info;
213 ACPI_FUNCTION_TRACE ("NsInitializeDevices");
218 Info.DeviceCount = 0;
222 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "Executing all Device _STA and_INI methods:"));
224 /* Walk namespace for all objects of type Device */
226 Status = AcpiNsWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
227 ACPI_UINT32_MAX, FALSE, AcpiNsInitOneDevice, &Info, NULL);
229 if (ACPI_FAILURE (Status))
231 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "WalkNamespace failed! %s\n",
232 AcpiFormatException (Status)));
235 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
236 "\n%hd Devices found containing: %hd _STA, %hd _INI methods\n",
237 Info.DeviceCount, Info.Num_STA, Info.Num_INI));
239 return_ACPI_STATUS (Status);
243 /*******************************************************************************
245 * FUNCTION: AcpiNsInitOneObject
247 * PARAMETERS: ObjHandle - Node
248 * Level - Current nesting level
249 * Context - Points to a init info struct
250 * ReturnValue - Not used
254 * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object
255 * within the namespace.
257 * Currently, the only objects that require initialization are:
261 ******************************************************************************/
264 AcpiNsInitOneObject (
265 ACPI_HANDLE ObjHandle,
270 ACPI_OBJECT_TYPE Type;
272 ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context;
273 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
274 ACPI_OPERAND_OBJECT *ObjDesc;
277 ACPI_FUNCTION_NAME ("NsInitOneObject");
282 /* And even then, we are only interested in a few object types */
284 Type = AcpiNsGetType (ObjHandle);
285 ObjDesc = AcpiNsGetAttachedObject (Node);
291 /* Increment counters for object types we are looking for */
295 case ACPI_TYPE_REGION:
296 Info->OpRegionCount++;
299 case ACPI_TYPE_BUFFER_FIELD:
303 case ACPI_TYPE_BUFFER:
307 case ACPI_TYPE_PACKAGE:
308 Info->PackageCount++;
313 /* No init required, just exit now */
318 * If the object is already initialized, nothing else to do
320 if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
326 * Must lock the interpreter before executing AML code
328 Status = AcpiExEnterInterpreter ();
329 if (ACPI_FAILURE (Status))
335 * Each of these types can contain executable AML code within
340 case ACPI_TYPE_REGION:
342 Info->OpRegionInit++;
343 Status = AcpiDsGetRegionArguments (ObjDesc);
347 case ACPI_TYPE_BUFFER_FIELD:
350 Status = AcpiDsGetBufferFieldArguments (ObjDesc);
354 case ACPI_TYPE_BUFFER:
357 Status = AcpiDsGetBufferArguments (ObjDesc);
361 case ACPI_TYPE_PACKAGE:
364 Status = AcpiDsGetPackageArguments (ObjDesc);
368 /* No other types can get here */
372 if (ACPI_FAILURE (Status))
374 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ERROR, "\n"));
375 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
376 "Could not execute arguments for [%4.4s] (%s), %s\n",
377 Node->Name.Ascii, AcpiUtGetTypeName (Type), AcpiFormatException (Status)));
380 /* Print a dot for each object unless we are going to print the entire pathname */
382 if (!(AcpiDbgLevel & ACPI_LV_INIT_NAMES))
384 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
388 * We ignore errors from above, and always return OK, since
389 * we don't want to abort the walk on any single error.
391 AcpiExExitInterpreter ();
396 /*******************************************************************************
398 * FUNCTION: AcpiNsInitOneDevice
400 * PARAMETERS: ACPI_WALK_CALLBACK
402 * RETURN: ACPI_STATUS
404 * DESCRIPTION: This is called once per device soon after ACPI is enabled
405 * to initialize each device. It determines if the device is
406 * present, and if so, calls _INI.
408 ******************************************************************************/
411 AcpiNsInitOneDevice (
412 ACPI_HANDLE ObjHandle,
418 ACPI_NAMESPACE_NODE *Node;
420 ACPI_DEVICE_WALK_INFO *Info = (ACPI_DEVICE_WALK_INFO *) Context;
423 ACPI_FUNCTION_TRACE ("NsInitOneDevice");
426 if ((AcpiDbgLevel <= ACPI_LV_ALL_EXCEPTIONS) && (!(AcpiDbgLevel & ACPI_LV_INFO)))
428 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
433 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
434 if (ACPI_FAILURE (Status))
436 return_ACPI_STATUS (Status);
439 Node = AcpiNsMapHandleToNode (ObjHandle);
442 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
443 return_ACPI_STATUS (AE_BAD_PARAMETER);
446 Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
447 if (ACPI_FAILURE (Status))
449 return_ACPI_STATUS (Status);
453 * Run _STA to determine if we can run _INI on the device.
455 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, Node, "_STA"));
456 Status = AcpiUtExecute_STA (Node, &Flags);
457 if (ACPI_FAILURE (Status))
459 /* Ignore error and move on to next device */
461 return_ACPI_STATUS (AE_OK);
468 /* don't look at children of a not present device */
470 return_ACPI_STATUS(AE_CTRL_DEPTH);
474 * The device is present. Run _INI.
476 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, ObjHandle, "_INI"));
477 Status = AcpiNsEvaluateRelative (ObjHandle, "_INI", NULL, NULL);
478 if (ACPI_FAILURE (Status))
480 /* No _INI (AE_NOT_FOUND) means device requires no initialization */
482 if (Status != AE_NOT_FOUND)
484 /* Ignore error and move on to next device */
486 #ifdef ACPI_DEBUG_OUTPUT
487 char *ScopeName = AcpiNsGetExternalPathname (ObjHandle);
489 ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "%s._INI failed: %s\n",
490 ScopeName, AcpiFormatException (Status)));
492 ACPI_MEM_FREE (ScopeName);
500 /* Count of successful INIs */
505 if (AcpiGbl_InitHandler)
507 /* External initialization handler is present, call it */
509 Status = AcpiGbl_InitHandler (ObjHandle, ACPI_INIT_DEVICE_INI);
513 return_ACPI_STATUS (Status);