1 /******************************************************************************
3 * Module Name: nsinit - namespace initialization
6 *****************************************************************************/
8 /******************************************************************************
12 * Some or all of this work - Copyright (c) 1999 - 2005, 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 *****************************************************************************/
118 #define __NSXFINIT_C__
120 #include <contrib/dev/acpica/acpi.h>
121 #include <contrib/dev/acpica/acnamesp.h>
122 #include <contrib/dev/acpica/acdispat.h>
123 #include <contrib/dev/acpica/acinterp.h>
125 #define _COMPONENT ACPI_NAMESPACE
126 ACPI_MODULE_NAME ("nsinit")
128 /* Local prototypes */
131 AcpiNsInitOneObject (
132 ACPI_HANDLE ObjHandle,
138 AcpiNsInitOneDevice (
139 ACPI_HANDLE ObjHandle,
145 /*******************************************************************************
147 * FUNCTION: AcpiNsInitializeObjects
153 * DESCRIPTION: Walk the entire namespace and perform any necessary
154 * initialization on the objects found therein
156 ******************************************************************************/
159 AcpiNsInitializeObjects (
163 ACPI_INIT_WALK_INFO Info;
166 ACPI_FUNCTION_TRACE ("NsInitializeObjects");
169 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
170 "**** Starting initialization of namespace objects ****\n"));
171 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
172 "Completing Region/Field/Buffer/Package initialization:"));
174 /* Set all init info to zero */
176 ACPI_MEMSET (&Info, 0, sizeof (ACPI_INIT_WALK_INFO));
178 /* Walk entire namespace from the supplied root */
180 Status = AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
181 ACPI_UINT32_MAX, AcpiNsInitOneObject,
183 if (ACPI_FAILURE (Status))
185 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "WalkNamespace failed! %s\n",
186 AcpiFormatException (Status)));
189 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
190 "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
191 Info.OpRegionInit, Info.OpRegionCount,
192 Info.FieldInit, Info.FieldCount,
193 Info.BufferInit, Info.BufferCount,
194 Info.PackageInit, Info.PackageCount, Info.ObjectCount));
196 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
197 "%hd Control Methods found\n", Info.MethodCount));
198 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
199 "%hd Op Regions found\n", Info.OpRegionCount));
201 return_ACPI_STATUS (AE_OK);
205 /*******************************************************************************
207 * FUNCTION: AcpiNsInitializeDevices
211 * RETURN: ACPI_STATUS
213 * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
214 * This means running _INI on all present devices.
216 * Note: We install PCI config space handler on region access,
219 ******************************************************************************/
222 AcpiNsInitializeDevices (
226 ACPI_DEVICE_WALK_INFO Info;
229 ACPI_FUNCTION_TRACE ("NsInitializeDevices");
234 Info.DeviceCount = 0;
238 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
239 "Executing all Device _STA and_INI methods:"));
241 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
242 if (ACPI_FAILURE (Status))
244 return_ACPI_STATUS (Status);
247 /* Walk namespace for all objects */
249 Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
250 ACPI_UINT32_MAX, TRUE, AcpiNsInitOneDevice, &Info, NULL);
252 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
254 if (ACPI_FAILURE (Status))
256 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "WalkNamespace failed! %s\n",
257 AcpiFormatException (Status)));
260 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
261 "\n%hd Devices found containing: %hd _STA, %hd _INI methods\n",
262 Info.DeviceCount, Info.Num_STA, Info.Num_INI));
264 return_ACPI_STATUS (Status);
268 /*******************************************************************************
270 * FUNCTION: AcpiNsInitOneObject
272 * PARAMETERS: ObjHandle - Node
273 * Level - Current nesting level
274 * Context - Points to a init info struct
275 * ReturnValue - Not used
279 * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object
280 * within the namespace.
282 * Currently, the only objects that require initialization are:
286 ******************************************************************************/
289 AcpiNsInitOneObject (
290 ACPI_HANDLE ObjHandle,
295 ACPI_OBJECT_TYPE Type;
297 ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context;
298 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
299 ACPI_OPERAND_OBJECT *ObjDesc;
302 ACPI_FUNCTION_NAME ("NsInitOneObject");
307 /* And even then, we are only interested in a few object types */
309 Type = AcpiNsGetType (ObjHandle);
310 ObjDesc = AcpiNsGetAttachedObject (Node);
316 /* Increment counters for object types we are looking for */
320 case ACPI_TYPE_REGION:
321 Info->OpRegionCount++;
324 case ACPI_TYPE_BUFFER_FIELD:
328 case ACPI_TYPE_BUFFER:
332 case ACPI_TYPE_PACKAGE:
333 Info->PackageCount++;
338 /* No init required, just exit now */
343 * If the object is already initialized, nothing else to do
345 if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
351 * Must lock the interpreter before executing AML code
353 Status = AcpiExEnterInterpreter ();
354 if (ACPI_FAILURE (Status))
360 * Each of these types can contain executable AML code within the
365 case ACPI_TYPE_REGION:
367 Info->OpRegionInit++;
368 Status = AcpiDsGetRegionArguments (ObjDesc);
371 case ACPI_TYPE_BUFFER_FIELD:
374 Status = AcpiDsGetBufferFieldArguments (ObjDesc);
377 case ACPI_TYPE_BUFFER:
380 Status = AcpiDsGetBufferArguments (ObjDesc);
383 case ACPI_TYPE_PACKAGE:
386 Status = AcpiDsGetPackageArguments (ObjDesc);
390 /* No other types can get here */
394 if (ACPI_FAILURE (Status))
396 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ERROR, "\n"));
397 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
398 "Could not execute arguments for [%4.4s] (%s), %s\n",
399 AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Type),
400 AcpiFormatException (Status)));
404 * Print a dot for each object unless we are going to print the entire
407 if (!(AcpiDbgLevel & ACPI_LV_INIT_NAMES))
409 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
413 * We ignore errors from above, and always return OK, since we don't want
414 * to abort the walk on any single error.
416 AcpiExExitInterpreter ();
421 /*******************************************************************************
423 * FUNCTION: AcpiNsInitOneDevice
425 * PARAMETERS: ACPI_WALK_CALLBACK
427 * RETURN: ACPI_STATUS
429 * DESCRIPTION: This is called once per device soon after ACPI is enabled
430 * to initialize each device. It determines if the device is
431 * present, and if so, calls _INI.
433 ******************************************************************************/
436 AcpiNsInitOneDevice (
437 ACPI_HANDLE ObjHandle,
442 ACPI_DEVICE_WALK_INFO *Info = (ACPI_DEVICE_WALK_INFO *) Context;
443 ACPI_PARAMETER_INFO Pinfo;
448 ACPI_FUNCTION_TRACE ("NsInitOneDevice");
451 Pinfo.Parameters = NULL;
452 Pinfo.ParameterType = ACPI_PARAM_ARGS;
454 Pinfo.Node = AcpiNsMapHandleToNode (ObjHandle);
457 return_ACPI_STATUS (AE_BAD_PARAMETER);
461 * We will run _STA/_INI on Devices, Processors and ThermalZones only
463 if ((Pinfo.Node->Type != ACPI_TYPE_DEVICE) &&
464 (Pinfo.Node->Type != ACPI_TYPE_PROCESSOR) &&
465 (Pinfo.Node->Type != ACPI_TYPE_THERMAL))
467 return_ACPI_STATUS (AE_OK);
470 if ((AcpiDbgLevel <= ACPI_LV_ALL_EXCEPTIONS) &&
471 (!(AcpiDbgLevel & ACPI_LV_INFO)))
473 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
479 * Run _STA to determine if we can run _INI on the device.
481 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD,
482 Pinfo.Node, METHOD_NAME__STA));
483 Status = AcpiUtExecute_STA (Pinfo.Node, &Flags);
485 if (ACPI_FAILURE (Status))
487 if (Pinfo.Node->Type == ACPI_TYPE_DEVICE)
489 /* Ignore error and move on to next device */
491 return_ACPI_STATUS (AE_OK);
494 /* _STA is not required for Processor or ThermalZone objects */
502 /* Don't look at children of a not present device */
504 return_ACPI_STATUS(AE_CTRL_DEPTH);
509 * The device is present. Run _INI.
511 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD,
512 Pinfo.Node, METHOD_NAME__INI));
513 Status = AcpiNsEvaluateRelative (METHOD_NAME__INI, &Pinfo);
514 if (ACPI_FAILURE (Status))
516 /* No _INI (AE_NOT_FOUND) means device requires no initialization */
518 if (Status != AE_NOT_FOUND)
520 /* Ignore error and move on to next device */
522 #ifdef ACPI_DEBUG_OUTPUT
523 char *ScopeName = AcpiNsGetExternalPathname (Pinfo.Node);
525 ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "%s._INI failed: %s\n",
526 ScopeName, AcpiFormatException (Status)));
528 ACPI_MEM_FREE (ScopeName);
536 /* Delete any return object (especially if ImplicitReturn is enabled) */
538 if (Pinfo.ReturnObject)
540 AcpiUtRemoveReference (Pinfo.ReturnObject);
543 /* Count of successful INIs */
548 if (AcpiGbl_InitHandler)
550 /* External initialization handler is present, call it */
552 Status = AcpiGbl_InitHandler (Pinfo.Node, ACPI_INIT_DEVICE_INI);
555 return_ACPI_STATUS (Status);