ReactOS 0.4.15-dev-7889-g76290a6
evxfevnt.c
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1/******************************************************************************
2 *
3 * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2022, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44#define EXPORT_ACPI_INTERFACES
45
46#include "acpi.h"
47#include "accommon.h"
48#include "actables.h"
49
50#define _COMPONENT ACPI_EVENTS
51 ACPI_MODULE_NAME ("evxfevnt")
52
53
54#if (!ACPI_REDUCED_HARDWARE) /* Entire module */
55/*******************************************************************************
56 *
57 * FUNCTION: AcpiEnable
58 *
59 * PARAMETERS: None
60 *
61 * RETURN: Status
62 *
63 * DESCRIPTION: Transfers the system into ACPI mode.
64 *
65 ******************************************************************************/
66
69 void)
70{
72
73
75
76
77 /* ACPI tables must be present */
78
79 if (AcpiGbl_FadtIndex == ACPI_INVALID_TABLE_INDEX)
80 {
82 }
83
84 /* If the Hardware Reduced flag is set, machine is always in acpi mode */
85
86 if (AcpiGbl_ReducedHardware)
87 {
89 }
90
91 /* Check current mode */
92
94 {
96 "System is already in ACPI mode\n"));
97 }
98 else
99 {
100 /* Transition to ACPI mode */
101
103 if (ACPI_FAILURE (Status))
104 {
105 ACPI_ERROR ((AE_INFO, "Could not transition to ACPI mode"));
107 }
108
110 "Transition to ACPI mode successful\n"));
111 }
112
114}
115
117
118
119/*******************************************************************************
120 *
121 * FUNCTION: AcpiDisable
122 *
123 * PARAMETERS: None
124 *
125 * RETURN: Status
126 *
127 * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode.
128 *
129 ******************************************************************************/
130
133 void)
134{
136
137
139
140
141 /* If the Hardware Reduced flag is set, machine is always in acpi mode */
142
143 if (AcpiGbl_ReducedHardware)
144 {
146 }
147
149 {
151 "System is already in legacy (non-ACPI) mode\n"));
152 }
153 else
154 {
155 /* Transition to LEGACY mode */
156
158
159 if (ACPI_FAILURE (Status))
160 {
162 "Could not exit ACPI mode to legacy mode"));
164 }
165
167 "ACPI mode disabled\n"));
168 }
169
171}
172
174
175
176/*******************************************************************************
177 *
178 * FUNCTION: AcpiEnableEvent
179 *
180 * PARAMETERS: Event - The fixed eventto be enabled
181 * Flags - Reserved
182 *
183 * RETURN: Status
184 *
185 * DESCRIPTION: Enable an ACPI event (fixed)
186 *
187 ******************************************************************************/
188
193{
196
197
199
200
201 /* If Hardware Reduced flag is set, there are no fixed events */
202
203 if (AcpiGbl_ReducedHardware)
204 {
206 }
207
208 /* Decode the Fixed Event */
209
210 if (Event > ACPI_EVENT_MAX)
211 {
213 }
214
215 /*
216 * Enable the requested fixed event (by writing a one to the enable
217 * register bit)
218 */
220 AcpiGbl_FixedEventInfo[Event].EnableRegisterId,
222 if (ACPI_FAILURE (Status))
223 {
225 }
226
227 /* Make sure that the hardware responded */
228
230 AcpiGbl_FixedEventInfo[Event].EnableRegisterId, &Value);
231 if (ACPI_FAILURE (Status))
232 {
234 }
235
236 if (Value != 1)
237 {
239 "Could not enable %s event", AcpiUtGetEventName (Event)));
241 }
242
244}
245
247
248
249/*******************************************************************************
250 *
251 * FUNCTION: AcpiDisableEvent
252 *
253 * PARAMETERS: Event - The fixed event to be disabled
254 * Flags - Reserved
255 *
256 * RETURN: Status
257 *
258 * DESCRIPTION: Disable an ACPI event (fixed)
259 *
260 ******************************************************************************/
261
266{
269
270
272
273
274 /* If Hardware Reduced flag is set, there are no fixed events */
275
276 if (AcpiGbl_ReducedHardware)
277 {
279 }
280
281 /* Decode the Fixed Event */
282
283 if (Event > ACPI_EVENT_MAX)
284 {
286 }
287
288 /*
289 * Disable the requested fixed event (by writing a zero to the enable
290 * register bit)
291 */
293 AcpiGbl_FixedEventInfo[Event].EnableRegisterId,
295 if (ACPI_FAILURE (Status))
296 {
298 }
299
301 AcpiGbl_FixedEventInfo[Event].EnableRegisterId, &Value);
302 if (ACPI_FAILURE (Status))
303 {
305 }
306
307 if (Value != 0)
308 {
310 "Could not disable %s events", AcpiUtGetEventName (Event)));
312 }
313
315}
316
318
319
320/*******************************************************************************
321 *
322 * FUNCTION: AcpiClearEvent
323 *
324 * PARAMETERS: Event - The fixed event to be cleared
325 *
326 * RETURN: Status
327 *
328 * DESCRIPTION: Clear an ACPI event (fixed)
329 *
330 ******************************************************************************/
331
335{
337
338
340
341
342 /* If Hardware Reduced flag is set, there are no fixed events */
343
344 if (AcpiGbl_ReducedHardware)
345 {
347 }
348
349 /* Decode the Fixed Event */
350
351 if (Event > ACPI_EVENT_MAX)
352 {
354 }
355
356 /*
357 * Clear the requested fixed event (By writing a one to the status
358 * register bit)
359 */
361 AcpiGbl_FixedEventInfo[Event].StatusRegisterId,
363
365}
366
368
369
370/*******************************************************************************
371 *
372 * FUNCTION: AcpiGetEventStatus
373 *
374 * PARAMETERS: Event - The fixed event
375 * EventStatus - Where the current status of the event will
376 * be returned
377 *
378 * RETURN: Status
379 *
380 * DESCRIPTION: Obtains and returns the current status of the event
381 *
382 ******************************************************************************/
383
387 ACPI_EVENT_STATUS *EventStatus)
388{
390 ACPI_EVENT_STATUS LocalEventStatus = 0;
391 UINT32 InByte;
392
393
395
396
397 if (!EventStatus)
398 {
400 }
401
402 /* Decode the Fixed Event */
403
404 if (Event > ACPI_EVENT_MAX)
405 {
407 }
408
409 /* Fixed event currently can be dispatched? */
410
411 if (AcpiGbl_FixedEventHandlers[Event].Handler)
412 {
413 LocalEventStatus |= ACPI_EVENT_FLAG_HAS_HANDLER;
414 }
415
416 /* Fixed event currently enabled? */
417
419 AcpiGbl_FixedEventInfo[Event].EnableRegisterId, &InByte);
420 if (ACPI_FAILURE (Status))
421 {
423 }
424
425 if (InByte)
426 {
427 LocalEventStatus |=
429 }
430
431 /* Fixed event currently active? */
432
434 AcpiGbl_FixedEventInfo[Event].StatusRegisterId, &InByte);
435 if (ACPI_FAILURE (Status))
436 {
438 }
439
440 if (InByte)
441 {
442 LocalEventStatus |= ACPI_EVENT_FLAG_STATUS_SET;
443 }
444
445 (*EventStatus) = LocalEventStatus;
447}
448
450
451#endif /* !ACPI_REDUCED_HARDWARE */
unsigned int UINT32
#define ACPI_FAILURE(a)
Definition: acexcep.h:95
#define AE_NO_ACPI_TABLES
Definition: acexcep.h:110
#define AE_BAD_PARAMETER
Definition: acexcep.h:151
#define AE_NO_HARDWARE_RESPONSE
Definition: acexcep.h:130
#define AE_OK
Definition: acexcep.h:97
ACPI_FIXED_EVENT_INFO AcpiGbl_FixedEventInfo[ACPI_NUM_FIXED_EVENTS]
Definition: utglobal.c:175
#define ACPI_INVALID_TABLE_INDEX
Definition: aclocal.h:260
#define ACPI_DEBUG_PRINT(pl)
Definition: acoutput.h:475
#define ACPI_MODULE_NAME(Name)
Definition: acoutput.h:216
#define return_ACPI_STATUS(s)
Definition: acoutput.h:496
#define ACPI_FUNCTION_TRACE(a)
Definition: acoutput.h:480
#define ACPI_ERROR(plist)
Definition: acoutput.h:240
#define AE_INFO
Definition: acoutput.h:230
#define ACPI_DB_INIT
Definition: acoutput.h:151
ACPI_PHYSICAL_ADDRESS ACPI_SIZE BOOLEAN Warn UINT32 *TableIdx UINT32 ACPI_TABLE_HEADER *OutTableHeader ACPI_TABLE_HEADER **OutTable ACPI_HANDLE UINT32 ACPI_WALK_CALLBACK ACPI_WALK_CALLBACK void void **ReturnValue UINT32 ACPI_BUFFER *RetPathPtr ACPI_OBJECT_HANDLER Handler
Definition: acpixf.h:672
#define ACPI_DISABLE_EVENT
Definition: actypes.h:944
#define ACPI_CLEAR_STATUS
Definition: actypes.h:939
#define ACPI_EVENT_FLAG_ENABLED
Definition: actypes.h:793
UINT32 ACPI_STATUS
Definition: actypes.h:460
#define ACPI_ENABLE_EVENT
Definition: actypes.h:943
#define ACPI_EVENT_FLAG_HAS_HANDLER
Definition: actypes.h:797
#define ACPI_EXPORT_SYMBOL(Symbol)
Definition: actypes.h:343
#define ACPI_EVENT_FLAG_STATUS_SET
Definition: actypes.h:795
UINT32 ACPI_EVENT_STATUS
Definition: actypes.h:790
#define ACPI_SYS_MODE_ACPI
Definition: actypes.h:1084
#define ACPI_EVENT_FLAG_ENABLE_SET
Definition: actypes.h:796
#define ACPI_EVENT_MAX
Definition: actypes.h:769
#define ACPI_SYS_MODE_LEGACY
Definition: actypes.h:1085
const char * AcpiUtGetEventName(UINT32 EventId)
Definition: utdecode.c:175
ACPI_STATUS AcpiHwSetMode(UINT32 Mode)
Definition: hwacpi.c:66
UINT32 AcpiHwGetMode(void)
Definition: hwacpi.c:179
ACPI_STATUS AcpiEnable(void)
Definition: evxfevnt.c:68
ACPI_STATUS AcpiClearEvent(UINT32 Event)
Definition: evxfevnt.c:333
ACPI_STATUS AcpiDisable(void)
Definition: evxfevnt.c:132
ACPI_STATUS AcpiEnableEvent(UINT32 Event, UINT32 Flags)
Definition: evxfevnt.c:190
ACPI_STATUS AcpiDisableEvent(UINT32 Event, UINT32 Flags)
Definition: evxfevnt.c:263
ACPI_STATUS AcpiGetEventStatus(UINT32 Event, ACPI_EVENT_STATUS *EventStatus)
Definition: evxfevnt.c:385
Status
Definition: gdiplustypes.h:25
ACPI_STATUS AcpiWriteBitRegister(UINT32 RegisterId, UINT32 Value)
Definition: hwxface.c:282
ACPI_STATUS AcpiReadBitRegister(UINT32 RegisterId, UINT32 *ReturnValue)
Definition: hwxface.c:213
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING _Out_opt_ PUSHORT _Inout_opt_ PUNICODE_STRING Value
Definition: wdfregistry.h:413
_Must_inspect_result_ _In_ ULONG Flags
Definition: wsk.h:170