1 /******************************************************************************
3 * Module Name: utxface - External interfaces for "global" ACPI functions
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/utxface.c,v 1.1 2003/09/24 03:32:16 drhodus Exp $ */
119 #define __UTXFACE_C__
122 #include "acevents.h"
123 #include "acnamesp.h"
124 #include "acparser.h"
125 #include "acdispat.h"
128 #define _COMPONENT ACPI_UTILITIES
129 ACPI_MODULE_NAME ("utxface")
132 /*******************************************************************************
134 * FUNCTION: AcpiInitializeSubsystem
140 * DESCRIPTION: Initializes all global variables. This is the first function
141 * called, so any early initialization belongs here.
143 ******************************************************************************/
146 AcpiInitializeSubsystem (
151 ACPI_FUNCTION_TRACE ("AcpiInitializeSubsystem");
154 ACPI_DEBUG_EXEC (AcpiUtInitStackPtrTrace ());
157 /* Initialize all globals used by the subsystem */
159 AcpiUtInitGlobals ();
161 /* Initialize the OS-Dependent layer */
163 Status = AcpiOsInitialize ();
164 if (ACPI_FAILURE (Status))
166 ACPI_REPORT_ERROR (("OSD failed to initialize, %s\n",
167 AcpiFormatException (Status)));
168 return_ACPI_STATUS (Status);
171 /* Create the default mutex objects */
173 Status = AcpiUtMutexInitialize ();
174 if (ACPI_FAILURE (Status))
176 ACPI_REPORT_ERROR (("Global mutex creation failure, %s\n",
177 AcpiFormatException (Status)));
178 return_ACPI_STATUS (Status);
182 * Initialize the namespace manager and
183 * the root of the namespace tree
186 Status = AcpiNsRootInitialize ();
187 if (ACPI_FAILURE (Status))
189 ACPI_REPORT_ERROR (("Namespace initialization failure, %s\n",
190 AcpiFormatException (Status)));
191 return_ACPI_STATUS (Status);
195 /* If configured, initialize the AML debugger */
197 ACPI_DEBUGGER_EXEC (Status = AcpiDbInitialize ());
199 return_ACPI_STATUS (Status);
203 /*******************************************************************************
205 * FUNCTION: AcpiEnableSubsystem
207 * PARAMETERS: Flags - Init/enable Options
211 * DESCRIPTION: Completes the subsystem initialization including hardware.
212 * Puts system into ACPI mode if it isn't already.
214 ******************************************************************************/
217 AcpiEnableSubsystem (
220 ACPI_STATUS Status = AE_OK;
223 ACPI_FUNCTION_TRACE ("AcpiEnableSubsystem");
227 * Install the default OpRegion handlers. These are installed unless
228 * other handlers have already been installed via the
229 * InstallAddressSpaceHandler interface
231 if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT))
233 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Installing default address space handlers\n"));
235 Status = AcpiEvInitAddressSpaces ();
236 if (ACPI_FAILURE (Status))
238 return_ACPI_STATUS (Status);
243 * We must initialize the hardware before we can enable ACPI.
244 * FADT values are validated here.
246 if (!(Flags & ACPI_NO_HARDWARE_INIT))
248 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Initializing ACPI hardware\n"));
250 Status = AcpiHwInitialize ();
251 if (ACPI_FAILURE (Status))
253 return_ACPI_STATUS (Status);
258 * Enable ACPI on this platform
260 if (!(Flags & ACPI_NO_ACPI_ENABLE))
262 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n"));
264 AcpiGbl_OriginalMode = AcpiHwGetMode();
266 Status = AcpiEnable ();
267 if (ACPI_FAILURE (Status))
269 ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "AcpiEnable failed.\n"));
270 return_ACPI_STATUS (Status);
276 * We must have the hardware AND events initialized before we can execute
277 * ANY control methods SAFELY. Any control method can require ACPI hardware
278 * support, so the hardware MUST be initialized before execution!
280 if (!(Flags & ACPI_NO_EVENT_INIT))
282 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Initializing ACPI events\n"));
284 Status = AcpiEvInitialize ();
285 if (ACPI_FAILURE (Status))
287 return_ACPI_STATUS (Status);
291 /* Install SCI handler, Global Lock handler, GPE handlers */
293 if (!(Flags & ACPI_NO_HANDLER_INIT))
295 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Installing SCI/GL/GPE handlers\n"));
297 Status = AcpiEvHandlerInitialize ();
298 if (ACPI_FAILURE (Status))
300 return_ACPI_STATUS (Status);
304 return_ACPI_STATUS (Status);
307 /*******************************************************************************
309 * FUNCTION: AcpiInitializeObjects
311 * PARAMETERS: Flags - Init/enable Options
315 * DESCRIPTION: Completes namespace initialization by initializing device
316 * objects and executing AML code for Regions, buffers, etc.
318 ******************************************************************************/
321 AcpiInitializeObjects (
324 ACPI_STATUS Status = AE_OK;
327 ACPI_FUNCTION_TRACE ("AcpiInitializeObjects");
330 * Initialize all device objects in the namespace
331 * This runs the _STA and _INI methods.
333 if (!(Flags & ACPI_NO_DEVICE_INIT))
335 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Initializing ACPI Devices\n"));
337 Status = AcpiNsInitializeDevices ();
338 if (ACPI_FAILURE (Status))
340 return_ACPI_STATUS (Status);
345 * Initialize the objects that remain uninitialized. This
346 * runs the executable AML that is part of the declaration of OpRegions
349 if (!(Flags & ACPI_NO_OBJECT_INIT))
351 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Initializing ACPI Objects\n"));
353 Status = AcpiNsInitializeObjects ();
354 if (ACPI_FAILURE (Status))
356 return_ACPI_STATUS (Status);
361 * Empty the caches (delete the cached objects) on the assumption that
362 * the table load filled them up more than they will be at runtime --
363 * thus wasting non-paged memory.
365 Status = AcpiPurgeCachedObjects ();
367 AcpiGbl_StartupFlags |= ACPI_INITIALIZED_OK;
368 return_ACPI_STATUS (Status);
372 /*******************************************************************************
374 * FUNCTION: AcpiTerminate
380 * DESCRIPTION: Shutdown the ACPI subsystem. Release all resources.
382 ******************************************************************************/
390 ACPI_FUNCTION_TRACE ("AcpiTerminate");
393 /* Terminate the AML Debugger if present */
395 ACPI_DEBUGGER_EXEC(AcpiGbl_DbTerminateThreads = TRUE);
397 /* Shutdown and free all resources */
399 AcpiUtSubsystemShutdown ();
402 /* Free the mutex objects */
404 AcpiUtMutexTerminate ();
409 /* Shut down the debugger */
414 /* Now we can shutdown the OS-dependent layer */
416 Status = AcpiOsTerminate ();
417 return_ACPI_STATUS (Status);
421 /*****************************************************************************
423 * FUNCTION: AcpiSubsystemStatus
427 * RETURN: Status of the ACPI subsystem
429 * DESCRIPTION: Other drivers that use the ACPI subsystem should call this
430 * before making any other calls, to ensure the subsystem initial-
433 ****************************************************************************/
436 AcpiSubsystemStatus (void)
438 if (AcpiGbl_StartupFlags & ACPI_INITIALIZED_OK)
449 /******************************************************************************
451 * FUNCTION: AcpiGetSystemInfo
453 * PARAMETERS: OutBuffer - a pointer to a buffer to receive the
454 * resources for the device
455 * BufferLength - the number of bytes available in the buffer
457 * RETURN: Status - the status of the call
459 * DESCRIPTION: This function is called to get information about the current
460 * state of the ACPI subsystem. It will return system information
463 * If the function fails an appropriate status will be returned
464 * and the value of OutBuffer is undefined.
466 ******************************************************************************/
470 ACPI_BUFFER *OutBuffer)
472 ACPI_SYSTEM_INFO *InfoPtr;
477 ACPI_FUNCTION_TRACE ("AcpiGetSystemInfo");
480 /* Parameter validation */
482 Status = AcpiUtValidateBuffer (OutBuffer);
483 if (ACPI_FAILURE (Status))
485 return_ACPI_STATUS (Status);
488 /* Validate/Allocate/Clear caller buffer */
490 Status = AcpiUtInitializeBuffer (OutBuffer, sizeof (ACPI_SYSTEM_INFO));
491 if (ACPI_FAILURE (Status))
493 return_ACPI_STATUS (Status);
497 * Populate the return buffer
499 InfoPtr = (ACPI_SYSTEM_INFO *) OutBuffer->Pointer;
501 InfoPtr->AcpiCaVersion = ACPI_CA_VERSION;
503 /* System flags (ACPI capabilities) */
505 InfoPtr->Flags = ACPI_SYS_MODE_ACPI;
507 /* Timer resolution - 24 or 32 bits */
511 InfoPtr->TimerResolution = 0;
513 else if (AcpiGbl_FADT->TmrValExt == 0)
515 InfoPtr->TimerResolution = 24;
519 InfoPtr->TimerResolution = 32;
522 /* Clear the reserved fields */
524 InfoPtr->Reserved1 = 0;
525 InfoPtr->Reserved2 = 0;
527 /* Current debug levels */
529 InfoPtr->DebugLayer = AcpiDbgLayer;
530 InfoPtr->DebugLevel = AcpiDbgLevel;
532 /* Current status of the ACPI tables, per table type */
534 InfoPtr->NumTableTypes = NUM_ACPI_TABLES;
535 for (i = 0; i < NUM_ACPI_TABLES; i++)
537 InfoPtr->TableInfo[i].Count = AcpiGbl_AcpiTables[i].Count;
540 return_ACPI_STATUS (AE_OK);
544 /*****************************************************************************
546 * FUNCTION: AcpiInstallInitializationHandler
548 * PARAMETERS: Handler - Callback procedure
552 * DESCRIPTION: Install an initialization handler
554 * TBD: When a second function is added, must save the Function also.
556 ****************************************************************************/
559 AcpiInstallInitializationHandler (
560 ACPI_INIT_HANDLER Handler,
566 return (AE_BAD_PARAMETER);
569 if (AcpiGbl_InitHandler)
571 return (AE_ALREADY_EXISTS);
574 AcpiGbl_InitHandler = Handler;
579 /*****************************************************************************
581 * FUNCTION: AcpiPurgeCachedObjects
587 * DESCRIPTION: Empty all caches (delete the cached objects)
589 ****************************************************************************/
592 AcpiPurgeCachedObjects (void)
594 ACPI_FUNCTION_TRACE ("AcpiPurgeCachedObjects");
597 AcpiUtDeleteGenericStateCache ();
598 AcpiUtDeleteObjectCache ();
599 AcpiDsDeleteWalkStateCache ();
600 AcpiPsDeleteParseCache ();
602 return_ACPI_STATUS (AE_OK);