1 /******************************************************************************
3 * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable
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 prton 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/evxfevnt.c,v 1.1 2003/09/24 03:32:15 drhodus Exp $ */
119 #define __EVXFEVNT_C__
122 #include "acevents.h"
124 #define _COMPONENT ACPI_EVENTS
125 ACPI_MODULE_NAME ("evxfevnt")
128 /*******************************************************************************
130 * FUNCTION: AcpiEnable
136 * DESCRIPTION: Transfers the system into ACPI mode.
138 ******************************************************************************/
143 ACPI_STATUS Status = AE_OK;
146 ACPI_FUNCTION_TRACE ("AcpiEnable");
149 /* Make sure we have the FADT*/
153 ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "No FADT information present!\n"));
154 return_ACPI_STATUS (AE_NO_ACPI_TABLES);
157 if (AcpiHwGetMode() == ACPI_SYS_MODE_ACPI)
159 ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "System is already in ACPI mode\n"));
163 /* Transition to ACPI mode */
165 Status = AcpiHwSetMode (ACPI_SYS_MODE_ACPI);
166 if (ACPI_FAILURE (Status))
168 ACPI_REPORT_ERROR (("Could not transition to ACPI mode.\n"));
169 return_ACPI_STATUS (Status);
172 ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "Transition to ACPI mode successful\n"));
175 return_ACPI_STATUS (Status);
179 /*******************************************************************************
181 * FUNCTION: AcpiDisable
187 * DESCRIPTION: Transfers the system into LEGACY mode.
189 ******************************************************************************/
194 ACPI_STATUS Status = AE_OK;
197 ACPI_FUNCTION_TRACE ("AcpiDisable");
201 ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "No FADT information present!\n"));
202 return_ACPI_STATUS (AE_NO_ACPI_TABLES);
205 if (AcpiHwGetMode() == ACPI_SYS_MODE_LEGACY)
207 ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "System is already in legacy (non-ACPI) mode\n"));
211 /* Transition to LEGACY mode */
213 Status = AcpiHwSetMode (ACPI_SYS_MODE_LEGACY);
215 if (ACPI_FAILURE (Status))
217 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not exit ACPI mode to legacy mode"));
218 return_ACPI_STATUS (Status);
221 ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI mode disabled\n"));
224 return_ACPI_STATUS (Status);
228 /*******************************************************************************
230 * FUNCTION: AcpiEnableEvent
232 * PARAMETERS: Event - The fixed event or GPE to be enabled
233 * Type - The type of event
234 * Flags - Just enable, or also wake enable?
238 * DESCRIPTION: Enable an ACPI event (fixed and general purpose)
240 ******************************************************************************/
248 ACPI_STATUS Status = AE_OK;
250 ACPI_GPE_EVENT_INFO *GpeEventInfo;
253 ACPI_FUNCTION_TRACE ("AcpiEnableEvent");
256 /* The Type must be either Fixed Event or GPE */
260 case ACPI_EVENT_FIXED:
262 /* Decode the Fixed Event */
264 if (Event > ACPI_EVENT_MAX)
266 return_ACPI_STATUS (AE_BAD_PARAMETER);
270 * Enable the requested fixed event (by writing a one to the
271 * enable register bit)
273 Status = AcpiSetRegister (AcpiGbl_FixedEventInfo[Event].EnableRegisterId,
275 if (ACPI_FAILURE (Status))
277 return_ACPI_STATUS (Status);
280 /* Make sure that the hardware responded */
282 Status = AcpiGetRegister (AcpiGbl_FixedEventInfo[Event].EnableRegisterId,
283 &Value, ACPI_MTX_LOCK);
284 if (ACPI_FAILURE (Status))
286 return_ACPI_STATUS (Status);
291 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
292 "Could not enable %s event\n", AcpiUtGetEventName (Event)));
293 return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE);
300 /* Ensure that we have a valid GPE number */
302 GpeEventInfo = AcpiEvGetGpeEventInfo (Event);
305 return_ACPI_STATUS (AE_BAD_PARAMETER);
308 /* Enable the requested GPE number */
310 Status = AcpiHwEnableGpe (GpeEventInfo);
311 if (ACPI_FAILURE (Status))
313 return_ACPI_STATUS (Status);
316 if (Flags & ACPI_EVENT_WAKE_ENABLE)
318 AcpiHwEnableGpeForWakeup (GpeEventInfo);
325 Status = AE_BAD_PARAMETER;
328 return_ACPI_STATUS (Status);
332 /*******************************************************************************
334 * FUNCTION: AcpiDisableEvent
336 * PARAMETERS: Event - The fixed event or GPE to be enabled
337 * Type - The type of event, fixed or general purpose
338 * Flags - Wake disable vs. non-wake disable
342 * DESCRIPTION: Disable an ACPI event (fixed and general purpose)
344 ******************************************************************************/
352 ACPI_STATUS Status = AE_OK;
354 ACPI_GPE_EVENT_INFO *GpeEventInfo;
357 ACPI_FUNCTION_TRACE ("AcpiDisableEvent");
360 /* The Type must be either Fixed Event or GPE */
364 case ACPI_EVENT_FIXED:
366 /* Decode the Fixed Event */
368 if (Event > ACPI_EVENT_MAX)
370 return_ACPI_STATUS (AE_BAD_PARAMETER);
374 * Disable the requested fixed event (by writing a zero to the
375 * enable register bit)
377 Status = AcpiSetRegister (AcpiGbl_FixedEventInfo[Event].EnableRegisterId,
379 if (ACPI_FAILURE (Status))
381 return_ACPI_STATUS (Status);
384 Status = AcpiGetRegister (AcpiGbl_FixedEventInfo[Event].EnableRegisterId,
385 &Value, ACPI_MTX_LOCK);
386 if (ACPI_FAILURE (Status))
388 return_ACPI_STATUS (Status);
393 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
394 "Could not disable %s events\n", AcpiUtGetEventName (Event)));
395 return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE);
402 /* Ensure that we have a valid GPE number */
404 GpeEventInfo = AcpiEvGetGpeEventInfo (Event);
407 return_ACPI_STATUS (AE_BAD_PARAMETER);
411 * Only disable the requested GPE number for wake if specified.
412 * Otherwise, turn it totally off
415 if (Flags & ACPI_EVENT_WAKE_DISABLE)
417 AcpiHwDisableGpeForWakeup (GpeEventInfo);
421 Status = AcpiHwDisableGpe (GpeEventInfo);
427 Status = AE_BAD_PARAMETER;
430 return_ACPI_STATUS (Status);
434 /*******************************************************************************
436 * FUNCTION: AcpiClearEvent
438 * PARAMETERS: Event - The fixed event or GPE to be cleared
439 * Type - The type of event
443 * DESCRIPTION: Clear an ACPI event (fixed and general purpose)
445 ******************************************************************************/
452 ACPI_STATUS Status = AE_OK;
453 ACPI_GPE_EVENT_INFO *GpeEventInfo;
456 ACPI_FUNCTION_TRACE ("AcpiClearEvent");
459 /* The Type must be either Fixed Event or GPE */
463 case ACPI_EVENT_FIXED:
465 /* Decode the Fixed Event */
467 if (Event > ACPI_EVENT_MAX)
469 return_ACPI_STATUS (AE_BAD_PARAMETER);
473 * Clear the requested fixed event (By writing a one to the
474 * status register bit)
476 Status = AcpiSetRegister (AcpiGbl_FixedEventInfo[Event].StatusRegisterId,
483 /* Ensure that we have a valid GPE number */
485 GpeEventInfo = AcpiEvGetGpeEventInfo (Event);
488 return_ACPI_STATUS (AE_BAD_PARAMETER);
491 Status = AcpiHwClearGpe (GpeEventInfo);
497 Status = AE_BAD_PARAMETER;
500 return_ACPI_STATUS (Status);
504 /*******************************************************************************
506 * FUNCTION: AcpiGetEventStatus
508 * PARAMETERS: Event - The fixed event or GPE
509 * Type - The type of event
510 * Status - Where the current status of the event will
515 * DESCRIPTION: Obtains and returns the current status of the event
517 ******************************************************************************/
524 ACPI_EVENT_STATUS *EventStatus)
526 ACPI_STATUS Status = AE_OK;
527 ACPI_GPE_EVENT_INFO *GpeEventInfo;
530 ACPI_FUNCTION_TRACE ("AcpiGetEventStatus");
535 return_ACPI_STATUS (AE_BAD_PARAMETER);
539 /* The Type must be either Fixed Event or GPE */
543 case ACPI_EVENT_FIXED:
545 /* Decode the Fixed Event */
547 if (Event > ACPI_EVENT_MAX)
549 return_ACPI_STATUS (AE_BAD_PARAMETER);
552 /* Get the status of the requested fixed event */
554 Status = AcpiGetRegister (AcpiGbl_FixedEventInfo[Event].StatusRegisterId,
555 EventStatus, ACPI_MTX_LOCK);
561 /* Ensure that we have a valid GPE number */
563 GpeEventInfo = AcpiEvGetGpeEventInfo (Event);
566 return_ACPI_STATUS (AE_BAD_PARAMETER);
569 /* Obtain status on the requested GPE number */
571 Status = AcpiHwGetGpeStatus (Event, EventStatus);
576 Status = AE_BAD_PARAMETER;
579 return_ACPI_STATUS (Status);