1/******************************************************************************
2 *
3 * Module Name: evgpe - General Purpose Event handling and dispatch
| 1/******************************************************************************
2 *
3 * Module Name: evgpe - General Purpose Event handling and dispatch
|
4 * $Revision: 1.53 $
| 4 * $Revision: 1.68 $
|
5 *
6 *****************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
| 5 *
6 *****************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
|
12 * Some or all of this work - Copyright (c) 1999 - 2005, Intel Corp.
| 12 * Some or all of this work - Copyright (c) 1999 - 2007, Intel Corp.
|
13 * All rights reserved.
14 *
15 * 2. License
16 *
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
20 * property rights.
21 *
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
28 *
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;
37 *
38 * The above copyright and patent license is granted only if the following
39 * conditions are met:
40 *
41 * 3. Conditions
42 *
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.
54 *
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
65 * make.
66 *
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
71 * distribution.
72 *
73 * 3.4. Intel retains all right, title, and interest in and to the Original
74 * Intel Code.
75 *
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.
80 *
81 * 4. Disclaimer and Export Compliance
82 *
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
89 * PARTICULAR PURPOSE.
90 *
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
98 * LIMITED REMEDY.
99 *
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.
114 *
115 *****************************************************************************/
116
117#include <contrib/dev/acpica/acpi.h>
118#include <contrib/dev/acpica/acevents.h>
119#include <contrib/dev/acpica/acnamesp.h>
120
121#define _COMPONENT ACPI_EVENTS
122 ACPI_MODULE_NAME ("evgpe")
123
124/* Local prototypes */
125
126static void ACPI_SYSTEM_XFACE
127AcpiEvAsynchExecuteGpeMethod (
128 void *Context);
129
130
131/*******************************************************************************
132 *
133 * FUNCTION: AcpiEvSetGpeType
134 *
135 * PARAMETERS: GpeEventInfo - GPE to set
136 * Type - New type
137 *
138 * RETURN: Status
139 *
140 * DESCRIPTION: Sets the new type for the GPE (wake, run, or wake/run)
141 *
142 ******************************************************************************/
143
144ACPI_STATUS
145AcpiEvSetGpeType (
146 ACPI_GPE_EVENT_INFO *GpeEventInfo,
147 UINT8 Type)
148{
149 ACPI_STATUS Status;
150
151
| 13 * All rights reserved.
14 *
15 * 2. License
16 *
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
20 * property rights.
21 *
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
28 *
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;
37 *
38 * The above copyright and patent license is granted only if the following
39 * conditions are met:
40 *
41 * 3. Conditions
42 *
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.
54 *
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
65 * make.
66 *
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
71 * distribution.
72 *
73 * 3.4. Intel retains all right, title, and interest in and to the Original
74 * Intel Code.
75 *
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.
80 *
81 * 4. Disclaimer and Export Compliance
82 *
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
89 * PARTICULAR PURPOSE.
90 *
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
98 * LIMITED REMEDY.
99 *
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.
114 *
115 *****************************************************************************/
116
117#include <contrib/dev/acpica/acpi.h>
118#include <contrib/dev/acpica/acevents.h>
119#include <contrib/dev/acpica/acnamesp.h>
120
121#define _COMPONENT ACPI_EVENTS
122 ACPI_MODULE_NAME ("evgpe")
123
124/* Local prototypes */
125
126static void ACPI_SYSTEM_XFACE
127AcpiEvAsynchExecuteGpeMethod (
128 void *Context);
129
130
131/*******************************************************************************
132 *
133 * FUNCTION: AcpiEvSetGpeType
134 *
135 * PARAMETERS: GpeEventInfo - GPE to set
136 * Type - New type
137 *
138 * RETURN: Status
139 *
140 * DESCRIPTION: Sets the new type for the GPE (wake, run, or wake/run)
141 *
142 ******************************************************************************/
143
144ACPI_STATUS
145AcpiEvSetGpeType (
146 ACPI_GPE_EVENT_INFO *GpeEventInfo,
147 UINT8 Type)
148{
149 ACPI_STATUS Status;
150
151
|
152 ACPI_FUNCTION_TRACE ("EvSetGpeType");
| 152 ACPI_FUNCTION_TRACE (EvSetGpeType);
|
153
154
155 /* Validate type and update register enable masks */
156
157 switch (Type)
158 {
159 case ACPI_GPE_TYPE_WAKE:
160 case ACPI_GPE_TYPE_RUNTIME:
161 case ACPI_GPE_TYPE_WAKE_RUN:
162 break;
163
164 default:
165 return_ACPI_STATUS (AE_BAD_PARAMETER);
166 }
167
168 /* Disable the GPE if currently enabled */
169
170 Status = AcpiEvDisableGpe (GpeEventInfo);
171
172 /* Type was validated above */
173
174 GpeEventInfo->Flags &= ~ACPI_GPE_TYPE_MASK; /* Clear type bits */
175 GpeEventInfo->Flags |= Type; /* Insert type */
176 return_ACPI_STATUS (Status);
177}
178
179
180/*******************************************************************************
181 *
182 * FUNCTION: AcpiEvUpdateGpeEnableMasks
183 *
184 * PARAMETERS: GpeEventInfo - GPE to update
185 * Type - What to do: ACPI_GPE_DISABLE or
186 * ACPI_GPE_ENABLE
187 *
188 * RETURN: Status
189 *
190 * DESCRIPTION: Updates GPE register enable masks based on the GPE type
191 *
192 ******************************************************************************/
193
194ACPI_STATUS
195AcpiEvUpdateGpeEnableMasks (
196 ACPI_GPE_EVENT_INFO *GpeEventInfo,
197 UINT8 Type)
198{
199 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo;
200 UINT8 RegisterBit;
201
202
| 153
154
155 /* Validate type and update register enable masks */
156
157 switch (Type)
158 {
159 case ACPI_GPE_TYPE_WAKE:
160 case ACPI_GPE_TYPE_RUNTIME:
161 case ACPI_GPE_TYPE_WAKE_RUN:
162 break;
163
164 default:
165 return_ACPI_STATUS (AE_BAD_PARAMETER);
166 }
167
168 /* Disable the GPE if currently enabled */
169
170 Status = AcpiEvDisableGpe (GpeEventInfo);
171
172 /* Type was validated above */
173
174 GpeEventInfo->Flags &= ~ACPI_GPE_TYPE_MASK; /* Clear type bits */
175 GpeEventInfo->Flags |= Type; /* Insert type */
176 return_ACPI_STATUS (Status);
177}
178
179
180/*******************************************************************************
181 *
182 * FUNCTION: AcpiEvUpdateGpeEnableMasks
183 *
184 * PARAMETERS: GpeEventInfo - GPE to update
185 * Type - What to do: ACPI_GPE_DISABLE or
186 * ACPI_GPE_ENABLE
187 *
188 * RETURN: Status
189 *
190 * DESCRIPTION: Updates GPE register enable masks based on the GPE type
191 *
192 ******************************************************************************/
193
194ACPI_STATUS
195AcpiEvUpdateGpeEnableMasks (
196 ACPI_GPE_EVENT_INFO *GpeEventInfo,
197 UINT8 Type)
198{
199 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo;
200 UINT8 RegisterBit;
201
202
|
203 ACPI_FUNCTION_TRACE ("EvUpdateGpeEnableMasks");
| 203 ACPI_FUNCTION_TRACE (EvUpdateGpeEnableMasks);
|
204
205
206 GpeRegisterInfo = GpeEventInfo->RegisterInfo;
207 if (!GpeRegisterInfo)
208 {
209 return_ACPI_STATUS (AE_NOT_EXIST);
210 }
| 204
205
206 GpeRegisterInfo = GpeEventInfo->RegisterInfo;
207 if (!GpeRegisterInfo)
208 {
209 return_ACPI_STATUS (AE_NOT_EXIST);
210 }
|
211 RegisterBit = GpeEventInfo->RegisterBit;
| 211 RegisterBit = (UINT8)
212 (1 << (GpeEventInfo->GpeNumber - GpeRegisterInfo->BaseGpeNumber));
|
212
213 /* 1) Disable case. Simply clear all enable bits */
214
215 if (Type == ACPI_GPE_DISABLE)
216 {
217 ACPI_CLEAR_BIT (GpeRegisterInfo->EnableForWake, RegisterBit);
218 ACPI_CLEAR_BIT (GpeRegisterInfo->EnableForRun, RegisterBit);
219 return_ACPI_STATUS (AE_OK);
220 }
221
222 /* 2) Enable case. Set/Clear the appropriate enable bits */
223
224 switch (GpeEventInfo->Flags & ACPI_GPE_TYPE_MASK)
225 {
226 case ACPI_GPE_TYPE_WAKE:
227 ACPI_SET_BIT (GpeRegisterInfo->EnableForWake, RegisterBit);
228 ACPI_CLEAR_BIT (GpeRegisterInfo->EnableForRun, RegisterBit);
229 break;
230
231 case ACPI_GPE_TYPE_RUNTIME:
232 ACPI_CLEAR_BIT (GpeRegisterInfo->EnableForWake, RegisterBit);
233 ACPI_SET_BIT (GpeRegisterInfo->EnableForRun, RegisterBit);
234 break;
235
236 case ACPI_GPE_TYPE_WAKE_RUN:
237 ACPI_SET_BIT (GpeRegisterInfo->EnableForWake, RegisterBit);
238 ACPI_SET_BIT (GpeRegisterInfo->EnableForRun, RegisterBit);
239 break;
240
241 default:
242 return_ACPI_STATUS (AE_BAD_PARAMETER);
243 }
244
245 return_ACPI_STATUS (AE_OK);
246}
247
248
249/*******************************************************************************
250 *
251 * FUNCTION: AcpiEvEnableGpe
252 *
253 * PARAMETERS: GpeEventInfo - GPE to enable
254 * WriteToHardware - Enable now, or just mark data structs
255 * (WAKE GPEs should be deferred)
256 *
257 * RETURN: Status
258 *
259 * DESCRIPTION: Enable a GPE based on the GPE type
260 *
261 ******************************************************************************/
262
263ACPI_STATUS
264AcpiEvEnableGpe (
265 ACPI_GPE_EVENT_INFO *GpeEventInfo,
266 BOOLEAN WriteToHardware)
267{
268 ACPI_STATUS Status;
269
270
| 213
214 /* 1) Disable case. Simply clear all enable bits */
215
216 if (Type == ACPI_GPE_DISABLE)
217 {
218 ACPI_CLEAR_BIT (GpeRegisterInfo->EnableForWake, RegisterBit);
219 ACPI_CLEAR_BIT (GpeRegisterInfo->EnableForRun, RegisterBit);
220 return_ACPI_STATUS (AE_OK);
221 }
222
223 /* 2) Enable case. Set/Clear the appropriate enable bits */
224
225 switch (GpeEventInfo->Flags & ACPI_GPE_TYPE_MASK)
226 {
227 case ACPI_GPE_TYPE_WAKE:
228 ACPI_SET_BIT (GpeRegisterInfo->EnableForWake, RegisterBit);
229 ACPI_CLEAR_BIT (GpeRegisterInfo->EnableForRun, RegisterBit);
230 break;
231
232 case ACPI_GPE_TYPE_RUNTIME:
233 ACPI_CLEAR_BIT (GpeRegisterInfo->EnableForWake, RegisterBit);
234 ACPI_SET_BIT (GpeRegisterInfo->EnableForRun, RegisterBit);
235 break;
236
237 case ACPI_GPE_TYPE_WAKE_RUN:
238 ACPI_SET_BIT (GpeRegisterInfo->EnableForWake, RegisterBit);
239 ACPI_SET_BIT (GpeRegisterInfo->EnableForRun, RegisterBit);
240 break;
241
242 default:
243 return_ACPI_STATUS (AE_BAD_PARAMETER);
244 }
245
246 return_ACPI_STATUS (AE_OK);
247}
248
249
250/*******************************************************************************
251 *
252 * FUNCTION: AcpiEvEnableGpe
253 *
254 * PARAMETERS: GpeEventInfo - GPE to enable
255 * WriteToHardware - Enable now, or just mark data structs
256 * (WAKE GPEs should be deferred)
257 *
258 * RETURN: Status
259 *
260 * DESCRIPTION: Enable a GPE based on the GPE type
261 *
262 ******************************************************************************/
263
264ACPI_STATUS
265AcpiEvEnableGpe (
266 ACPI_GPE_EVENT_INFO *GpeEventInfo,
267 BOOLEAN WriteToHardware)
268{
269 ACPI_STATUS Status;
270
271
|
271 ACPI_FUNCTION_TRACE ("EvEnableGpe");
| 272 ACPI_FUNCTION_TRACE (EvEnableGpe);
|
272
273
274 /* Make sure HW enable masks are updated */
275
276 Status = AcpiEvUpdateGpeEnableMasks (GpeEventInfo, ACPI_GPE_ENABLE);
277 if (ACPI_FAILURE (Status))
278 {
279 return_ACPI_STATUS (Status);
280 }
281
282 /* Mark wake-enabled or HW enable, or both */
283
284 switch (GpeEventInfo->Flags & ACPI_GPE_TYPE_MASK)
285 {
286 case ACPI_GPE_TYPE_WAKE:
287
288 ACPI_SET_BIT (GpeEventInfo->Flags, ACPI_GPE_WAKE_ENABLED);
289 break;
290
291 case ACPI_GPE_TYPE_WAKE_RUN:
292
293 ACPI_SET_BIT (GpeEventInfo->Flags, ACPI_GPE_WAKE_ENABLED);
294
295 /*lint -fallthrough */
296
297 case ACPI_GPE_TYPE_RUNTIME:
298
299 ACPI_SET_BIT (GpeEventInfo->Flags, ACPI_GPE_RUN_ENABLED);
300
301 if (WriteToHardware)
302 {
303 /* Clear the GPE (of stale events), then enable it */
304
305 Status = AcpiHwClearGpe (GpeEventInfo);
306 if (ACPI_FAILURE (Status))
307 {
308 return_ACPI_STATUS (Status);
309 }
310
311 /* Enable the requested runtime GPE */
312
313 Status = AcpiHwWriteGpeEnableReg (GpeEventInfo);
314 }
315 break;
316
317 default:
318 return_ACPI_STATUS (AE_BAD_PARAMETER);
319 }
320
321 return_ACPI_STATUS (AE_OK);
322}
323
324
325/*******************************************************************************
326 *
327 * FUNCTION: AcpiEvDisableGpe
328 *
329 * PARAMETERS: GpeEventInfo - GPE to disable
330 *
331 * RETURN: Status
332 *
333 * DESCRIPTION: Disable a GPE based on the GPE type
334 *
335 ******************************************************************************/
336
337ACPI_STATUS
338AcpiEvDisableGpe (
339 ACPI_GPE_EVENT_INFO *GpeEventInfo)
340{
341 ACPI_STATUS Status;
342
343
| 273
274
275 /* Make sure HW enable masks are updated */
276
277 Status = AcpiEvUpdateGpeEnableMasks (GpeEventInfo, ACPI_GPE_ENABLE);
278 if (ACPI_FAILURE (Status))
279 {
280 return_ACPI_STATUS (Status);
281 }
282
283 /* Mark wake-enabled or HW enable, or both */
284
285 switch (GpeEventInfo->Flags & ACPI_GPE_TYPE_MASK)
286 {
287 case ACPI_GPE_TYPE_WAKE:
288
289 ACPI_SET_BIT (GpeEventInfo->Flags, ACPI_GPE_WAKE_ENABLED);
290 break;
291
292 case ACPI_GPE_TYPE_WAKE_RUN:
293
294 ACPI_SET_BIT (GpeEventInfo->Flags, ACPI_GPE_WAKE_ENABLED);
295
296 /*lint -fallthrough */
297
298 case ACPI_GPE_TYPE_RUNTIME:
299
300 ACPI_SET_BIT (GpeEventInfo->Flags, ACPI_GPE_RUN_ENABLED);
301
302 if (WriteToHardware)
303 {
304 /* Clear the GPE (of stale events), then enable it */
305
306 Status = AcpiHwClearGpe (GpeEventInfo);
307 if (ACPI_FAILURE (Status))
308 {
309 return_ACPI_STATUS (Status);
310 }
311
312 /* Enable the requested runtime GPE */
313
314 Status = AcpiHwWriteGpeEnableReg (GpeEventInfo);
315 }
316 break;
317
318 default:
319 return_ACPI_STATUS (AE_BAD_PARAMETER);
320 }
321
322 return_ACPI_STATUS (AE_OK);
323}
324
325
326/*******************************************************************************
327 *
328 * FUNCTION: AcpiEvDisableGpe
329 *
330 * PARAMETERS: GpeEventInfo - GPE to disable
331 *
332 * RETURN: Status
333 *
334 * DESCRIPTION: Disable a GPE based on the GPE type
335 *
336 ******************************************************************************/
337
338ACPI_STATUS
339AcpiEvDisableGpe (
340 ACPI_GPE_EVENT_INFO *GpeEventInfo)
341{
342 ACPI_STATUS Status;
343
344
|
344 ACPI_FUNCTION_TRACE ("EvDisableGpe");
| 345 ACPI_FUNCTION_TRACE (EvDisableGpe);
|
345
346
347 if (!(GpeEventInfo->Flags & ACPI_GPE_ENABLE_MASK))
348 {
349 return_ACPI_STATUS (AE_OK);
350 }
351
352 /* Make sure HW enable masks are updated */
353
354 Status = AcpiEvUpdateGpeEnableMasks (GpeEventInfo, ACPI_GPE_DISABLE);
355 if (ACPI_FAILURE (Status))
356 {
357 return_ACPI_STATUS (Status);
358 }
359
360 /* Mark wake-disabled or HW disable, or both */
361
362 switch (GpeEventInfo->Flags & ACPI_GPE_TYPE_MASK)
363 {
364 case ACPI_GPE_TYPE_WAKE:
365 ACPI_CLEAR_BIT (GpeEventInfo->Flags, ACPI_GPE_WAKE_ENABLED);
366 break;
367
368 case ACPI_GPE_TYPE_WAKE_RUN:
369 ACPI_CLEAR_BIT (GpeEventInfo->Flags, ACPI_GPE_WAKE_ENABLED);
370
371 /*lint -fallthrough */
372
373 case ACPI_GPE_TYPE_RUNTIME:
374
375 /* Disable the requested runtime GPE */
376
377 ACPI_CLEAR_BIT (GpeEventInfo->Flags, ACPI_GPE_RUN_ENABLED);
378 Status = AcpiHwWriteGpeEnableReg (GpeEventInfo);
379 break;
380
381 default:
382 return_ACPI_STATUS (AE_BAD_PARAMETER);
383 }
384
385 return_ACPI_STATUS (AE_OK);
386}
387
388
389/*******************************************************************************
390 *
391 * FUNCTION: AcpiEvGetGpeEventInfo
392 *
393 * PARAMETERS: GpeDevice - Device node. NULL for GPE0/GPE1
394 * GpeNumber - Raw GPE number
395 *
396 * RETURN: A GPE EventInfo struct. NULL if not a valid GPE
397 *
398 * DESCRIPTION: Returns the EventInfo struct associated with this GPE.
399 * Validates the GpeBlock and the GpeNumber
400 *
401 * Should be called only when the GPE lists are semaphore locked
402 * and not subject to change.
403 *
404 ******************************************************************************/
405
406ACPI_GPE_EVENT_INFO *
407AcpiEvGetGpeEventInfo (
408 ACPI_HANDLE GpeDevice,
409 UINT32 GpeNumber)
410{
411 ACPI_OPERAND_OBJECT *ObjDesc;
412 ACPI_GPE_BLOCK_INFO *GpeBlock;
413 ACPI_NATIVE_UINT i;
414
415
416 ACPI_FUNCTION_ENTRY ();
417
418
419 /* A NULL GpeBlock means use the FADT-defined GPE block(s) */
420
421 if (!GpeDevice)
422 {
423 /* Examine GPE Block 0 and 1 (These blocks are permanent) */
424
425 for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++)
426 {
427 GpeBlock = AcpiGbl_GpeFadtBlocks[i];
428 if (GpeBlock)
429 {
430 if ((GpeNumber >= GpeBlock->BlockBaseNumber) &&
431 (GpeNumber < GpeBlock->BlockBaseNumber +
432 (GpeBlock->RegisterCount * 8)))
433 {
434 return (&GpeBlock->EventInfo[GpeNumber -
435 GpeBlock->BlockBaseNumber]);
436 }
437 }
438 }
439
440 /* The GpeNumber was not in the range of either FADT GPE block */
441
442 return (NULL);
443 }
444
445 /* A Non-NULL GpeDevice means this is a GPE Block Device */
446
447 ObjDesc = AcpiNsGetAttachedObject ((ACPI_NAMESPACE_NODE *) GpeDevice);
448 if (!ObjDesc ||
449 !ObjDesc->Device.GpeBlock)
450 {
451 return (NULL);
452 }
453
454 GpeBlock = ObjDesc->Device.GpeBlock;
455
456 if ((GpeNumber >= GpeBlock->BlockBaseNumber) &&
457 (GpeNumber < GpeBlock->BlockBaseNumber + (GpeBlock->RegisterCount * 8)))
458 {
459 return (&GpeBlock->EventInfo[GpeNumber - GpeBlock->BlockBaseNumber]);
460 }
461
462 return (NULL);
463}
464
465
466/*******************************************************************************
467 *
468 * FUNCTION: AcpiEvGpeDetect
469 *
470 * PARAMETERS: GpeXruptList - Interrupt block for this interrupt.
471 * Can have multiple GPE blocks attached.
472 *
473 * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
474 *
475 * DESCRIPTION: Detect if any GP events have occurred. This function is
476 * executed at interrupt level.
477 *
478 ******************************************************************************/
479
480UINT32
481AcpiEvGpeDetect (
482 ACPI_GPE_XRUPT_INFO *GpeXruptList)
483{
484 ACPI_STATUS Status;
485 ACPI_GPE_BLOCK_INFO *GpeBlock;
486 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo;
487 UINT32 IntStatus = ACPI_INTERRUPT_NOT_HANDLED;
488 UINT8 EnabledStatusByte;
489 UINT32 StatusReg;
490 UINT32 EnableReg;
| 346
347
348 if (!(GpeEventInfo->Flags & ACPI_GPE_ENABLE_MASK))
349 {
350 return_ACPI_STATUS (AE_OK);
351 }
352
353 /* Make sure HW enable masks are updated */
354
355 Status = AcpiEvUpdateGpeEnableMasks (GpeEventInfo, ACPI_GPE_DISABLE);
356 if (ACPI_FAILURE (Status))
357 {
358 return_ACPI_STATUS (Status);
359 }
360
361 /* Mark wake-disabled or HW disable, or both */
362
363 switch (GpeEventInfo->Flags & ACPI_GPE_TYPE_MASK)
364 {
365 case ACPI_GPE_TYPE_WAKE:
366 ACPI_CLEAR_BIT (GpeEventInfo->Flags, ACPI_GPE_WAKE_ENABLED);
367 break;
368
369 case ACPI_GPE_TYPE_WAKE_RUN:
370 ACPI_CLEAR_BIT (GpeEventInfo->Flags, ACPI_GPE_WAKE_ENABLED);
371
372 /*lint -fallthrough */
373
374 case ACPI_GPE_TYPE_RUNTIME:
375
376 /* Disable the requested runtime GPE */
377
378 ACPI_CLEAR_BIT (GpeEventInfo->Flags, ACPI_GPE_RUN_ENABLED);
379 Status = AcpiHwWriteGpeEnableReg (GpeEventInfo);
380 break;
381
382 default:
383 return_ACPI_STATUS (AE_BAD_PARAMETER);
384 }
385
386 return_ACPI_STATUS (AE_OK);
387}
388
389
390/*******************************************************************************
391 *
392 * FUNCTION: AcpiEvGetGpeEventInfo
393 *
394 * PARAMETERS: GpeDevice - Device node. NULL for GPE0/GPE1
395 * GpeNumber - Raw GPE number
396 *
397 * RETURN: A GPE EventInfo struct. NULL if not a valid GPE
398 *
399 * DESCRIPTION: Returns the EventInfo struct associated with this GPE.
400 * Validates the GpeBlock and the GpeNumber
401 *
402 * Should be called only when the GPE lists are semaphore locked
403 * and not subject to change.
404 *
405 ******************************************************************************/
406
407ACPI_GPE_EVENT_INFO *
408AcpiEvGetGpeEventInfo (
409 ACPI_HANDLE GpeDevice,
410 UINT32 GpeNumber)
411{
412 ACPI_OPERAND_OBJECT *ObjDesc;
413 ACPI_GPE_BLOCK_INFO *GpeBlock;
414 ACPI_NATIVE_UINT i;
415
416
417 ACPI_FUNCTION_ENTRY ();
418
419
420 /* A NULL GpeBlock means use the FADT-defined GPE block(s) */
421
422 if (!GpeDevice)
423 {
424 /* Examine GPE Block 0 and 1 (These blocks are permanent) */
425
426 for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++)
427 {
428 GpeBlock = AcpiGbl_GpeFadtBlocks[i];
429 if (GpeBlock)
430 {
431 if ((GpeNumber >= GpeBlock->BlockBaseNumber) &&
432 (GpeNumber < GpeBlock->BlockBaseNumber +
433 (GpeBlock->RegisterCount * 8)))
434 {
435 return (&GpeBlock->EventInfo[GpeNumber -
436 GpeBlock->BlockBaseNumber]);
437 }
438 }
439 }
440
441 /* The GpeNumber was not in the range of either FADT GPE block */
442
443 return (NULL);
444 }
445
446 /* A Non-NULL GpeDevice means this is a GPE Block Device */
447
448 ObjDesc = AcpiNsGetAttachedObject ((ACPI_NAMESPACE_NODE *) GpeDevice);
449 if (!ObjDesc ||
450 !ObjDesc->Device.GpeBlock)
451 {
452 return (NULL);
453 }
454
455 GpeBlock = ObjDesc->Device.GpeBlock;
456
457 if ((GpeNumber >= GpeBlock->BlockBaseNumber) &&
458 (GpeNumber < GpeBlock->BlockBaseNumber + (GpeBlock->RegisterCount * 8)))
459 {
460 return (&GpeBlock->EventInfo[GpeNumber - GpeBlock->BlockBaseNumber]);
461 }
462
463 return (NULL);
464}
465
466
467/*******************************************************************************
468 *
469 * FUNCTION: AcpiEvGpeDetect
470 *
471 * PARAMETERS: GpeXruptList - Interrupt block for this interrupt.
472 * Can have multiple GPE blocks attached.
473 *
474 * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
475 *
476 * DESCRIPTION: Detect if any GP events have occurred. This function is
477 * executed at interrupt level.
478 *
479 ******************************************************************************/
480
481UINT32
482AcpiEvGpeDetect (
483 ACPI_GPE_XRUPT_INFO *GpeXruptList)
484{
485 ACPI_STATUS Status;
486 ACPI_GPE_BLOCK_INFO *GpeBlock;
487 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo;
488 UINT32 IntStatus = ACPI_INTERRUPT_NOT_HANDLED;
489 UINT8 EnabledStatusByte;
490 UINT32 StatusReg;
491 UINT32 EnableReg;
|
491 ACPI_NATIVE_UINT Flags;
| 492 ACPI_CPU_FLAGS Flags;
|
492 ACPI_NATIVE_UINT i;
493 ACPI_NATIVE_UINT j;
494
495
| 493 ACPI_NATIVE_UINT i;
494 ACPI_NATIVE_UINT j;
495
496
|
496 ACPI_FUNCTION_NAME ("EvGpeDetect");
| 497 ACPI_FUNCTION_NAME (EvGpeDetect);
|
497
498 /* Check for the case where there are no GPEs */
499
500 if (!GpeXruptList)
501 {
502 return (IntStatus);
503 }
504
| 498
499 /* Check for the case where there are no GPEs */
500
501 if (!GpeXruptList)
502 {
503 return (IntStatus);
504 }
505
|
| 506 /*
507 * We need to obtain the GPE lock for both the data structs and registers
508 * Note: Not necessary to obtain the hardware lock, since the GPE registers
509 * are owned by the GpeLock.
510 */
511 Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
512
|
505 /* Examine all GPE blocks attached to this interrupt level */
506
| 513 /* Examine all GPE blocks attached to this interrupt level */
514
|
507 Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
| |
508 GpeBlock = GpeXruptList->GpeBlockListHead;
509 while (GpeBlock)
510 {
511 /*
512 * Read all of the 8-bit GPE status and enable registers
513 * in this GPE block, saving all of them.
514 * Find all currently active GP events.
515 */
516 for (i = 0; i < GpeBlock->RegisterCount; i++)
517 {
518 /* Get the next status/enable pair */
519
520 GpeRegisterInfo = &GpeBlock->RegisterInfo[i];
521
522 /* Read the Status Register */
523
524 Status = AcpiHwLowLevelRead (ACPI_GPE_REGISTER_WIDTH, &StatusReg,
525 &GpeRegisterInfo->StatusAddress);
526 if (ACPI_FAILURE (Status))
527 {
528 goto UnlockAndExit;
529 }
530
531 /* Read the Enable Register */
532
533 Status = AcpiHwLowLevelRead (ACPI_GPE_REGISTER_WIDTH, &EnableReg,
534 &GpeRegisterInfo->EnableAddress);
535 if (ACPI_FAILURE (Status))
536 {
537 goto UnlockAndExit;
538 }
539
540 ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS,
541 "Read GPE Register at GPE%X: Status=%02X, Enable=%02X\n",
542 GpeRegisterInfo->BaseGpeNumber, StatusReg, EnableReg));
543
544 /* Check if there is anything active at all in this register */
545
546 EnabledStatusByte = (UINT8) (StatusReg & EnableReg);
547 if (!EnabledStatusByte)
548 {
549 /* No active GPEs in this register, move on */
550
551 continue;
552 }
553
554 /* Now look at the individual GPEs in this byte register */
555
556 for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++)
557 {
558 /* Examine one GPE bit */
559
| 515 GpeBlock = GpeXruptList->GpeBlockListHead;
516 while (GpeBlock)
517 {
518 /*
519 * Read all of the 8-bit GPE status and enable registers
520 * in this GPE block, saving all of them.
521 * Find all currently active GP events.
522 */
523 for (i = 0; i < GpeBlock->RegisterCount; i++)
524 {
525 /* Get the next status/enable pair */
526
527 GpeRegisterInfo = &GpeBlock->RegisterInfo[i];
528
529 /* Read the Status Register */
530
531 Status = AcpiHwLowLevelRead (ACPI_GPE_REGISTER_WIDTH, &StatusReg,
532 &GpeRegisterInfo->StatusAddress);
533 if (ACPI_FAILURE (Status))
534 {
535 goto UnlockAndExit;
536 }
537
538 /* Read the Enable Register */
539
540 Status = AcpiHwLowLevelRead (ACPI_GPE_REGISTER_WIDTH, &EnableReg,
541 &GpeRegisterInfo->EnableAddress);
542 if (ACPI_FAILURE (Status))
543 {
544 goto UnlockAndExit;
545 }
546
547 ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS,
548 "Read GPE Register at GPE%X: Status=%02X, Enable=%02X\n",
549 GpeRegisterInfo->BaseGpeNumber, StatusReg, EnableReg));
550
551 /* Check if there is anything active at all in this register */
552
553 EnabledStatusByte = (UINT8) (StatusReg & EnableReg);
554 if (!EnabledStatusByte)
555 {
556 /* No active GPEs in this register, move on */
557
558 continue;
559 }
560
561 /* Now look at the individual GPEs in this byte register */
562
563 for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++)
564 {
565 /* Examine one GPE bit */
566
|
560 if (EnabledStatusByte & AcpiGbl_DecodeTo8bit[j])
| 567 if (EnabledStatusByte & (1 << j))
|
561 {
562 /*
563 * Found an active GPE. Dispatch the event to a handler
564 * or method.
565 */
566 IntStatus |= AcpiEvGpeDispatch (
567 &GpeBlock->EventInfo[(i * ACPI_GPE_REGISTER_WIDTH) + j],
568 (UINT32) j + GpeRegisterInfo->BaseGpeNumber);
569 }
570 }
571 }
572
573 GpeBlock = GpeBlock->Next;
574 }
575
576UnlockAndExit:
577
578 AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
579 return (IntStatus);
580}
581
582
583/*******************************************************************************
584 *
585 * FUNCTION: AcpiEvAsynchExecuteGpeMethod
586 *
587 * PARAMETERS: Context (GpeEventInfo) - Info for this GPE
588 *
589 * RETURN: None
590 *
| 568 {
569 /*
570 * Found an active GPE. Dispatch the event to a handler
571 * or method.
572 */
573 IntStatus |= AcpiEvGpeDispatch (
574 &GpeBlock->EventInfo[(i * ACPI_GPE_REGISTER_WIDTH) + j],
575 (UINT32) j + GpeRegisterInfo->BaseGpeNumber);
576 }
577 }
578 }
579
580 GpeBlock = GpeBlock->Next;
581 }
582
583UnlockAndExit:
584
585 AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
586 return (IntStatus);
587}
588
589
590/*******************************************************************************
591 *
592 * FUNCTION: AcpiEvAsynchExecuteGpeMethod
593 *
594 * PARAMETERS: Context (GpeEventInfo) - Info for this GPE
595 *
596 * RETURN: None
597 *
|
591 * DESCRIPTION: Perform the actual execution of a GPE control method. This
592 * function is called from an invocation of AcpiOsQueueForExecution
593 * (and therefore does NOT execute at interrupt level) so that
| 598 * DESCRIPTION: Perform the actual execution of a GPE control method. This
599 * function is called from an invocation of AcpiOsExecute and
600 * therefore does NOT execute at interrupt level - so that
|
594 * the control method itself is not executed in the context of
595 * an interrupt handler.
596 *
597 ******************************************************************************/
598
599static void ACPI_SYSTEM_XFACE
600AcpiEvAsynchExecuteGpeMethod (
601 void *Context)
602{
603 ACPI_GPE_EVENT_INFO *GpeEventInfo = (void *) Context;
| 601 * the control method itself is not executed in the context of
602 * an interrupt handler.
603 *
604 ******************************************************************************/
605
606static void ACPI_SYSTEM_XFACE
607AcpiEvAsynchExecuteGpeMethod (
608 void *Context)
609{
610 ACPI_GPE_EVENT_INFO *GpeEventInfo = (void *) Context;
|
604 UINT32 GpeNumber = 0;
| |
605 ACPI_STATUS Status;
606 ACPI_GPE_EVENT_INFO LocalGpeEventInfo;
| 611 ACPI_STATUS Status;
612 ACPI_GPE_EVENT_INFO LocalGpeEventInfo;
|
607 ACPI_PARAMETER_INFO Info;
| 613 ACPI_EVALUATE_INFO *Info;
|
608
609
| 614
615
|
610 ACPI_FUNCTION_TRACE ("EvAsynchExecuteGpeMethod");
| 616 ACPI_FUNCTION_TRACE (EvAsynchExecuteGpeMethod);
|
611
612
613 Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS);
614 if (ACPI_FAILURE (Status))
615 {
616 return_VOID;
617 }
618
619 /* Must revalidate the GpeNumber/GpeBlock */
620
621 if (!AcpiEvValidGpeEvent (GpeEventInfo))
622 {
623 Status = AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
624 return_VOID;
625 }
626
627 /* Set the GPE flags for return to enabled state */
628
629 (void) AcpiEvEnableGpe (GpeEventInfo, FALSE);
630
631 /*
632 * Take a snapshot of the GPE info for this level - we copy the
633 * info to prevent a race condition with RemoveHandler/RemoveBlock.
634 */
635 ACPI_MEMCPY (&LocalGpeEventInfo, GpeEventInfo,
636 sizeof (ACPI_GPE_EVENT_INFO));
637
638 Status = AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
639 if (ACPI_FAILURE (Status))
640 {
641 return_VOID;
642 }
643
644 /*
645 * Must check for control method type dispatch one more
646 * time to avoid race with EvGpeInstallHandler
647 */
648 if ((LocalGpeEventInfo.Flags & ACPI_GPE_DISPATCH_MASK) ==
649 ACPI_GPE_DISPATCH_METHOD)
650 {
| 617
618
619 Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS);
620 if (ACPI_FAILURE (Status))
621 {
622 return_VOID;
623 }
624
625 /* Must revalidate the GpeNumber/GpeBlock */
626
627 if (!AcpiEvValidGpeEvent (GpeEventInfo))
628 {
629 Status = AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
630 return_VOID;
631 }
632
633 /* Set the GPE flags for return to enabled state */
634
635 (void) AcpiEvEnableGpe (GpeEventInfo, FALSE);
636
637 /*
638 * Take a snapshot of the GPE info for this level - we copy the
639 * info to prevent a race condition with RemoveHandler/RemoveBlock.
640 */
641 ACPI_MEMCPY (&LocalGpeEventInfo, GpeEventInfo,
642 sizeof (ACPI_GPE_EVENT_INFO));
643
644 Status = AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
645 if (ACPI_FAILURE (Status))
646 {
647 return_VOID;
648 }
649
650 /*
651 * Must check for control method type dispatch one more
652 * time to avoid race with EvGpeInstallHandler
653 */
654 if ((LocalGpeEventInfo.Flags & ACPI_GPE_DISPATCH_MASK) ==
655 ACPI_GPE_DISPATCH_METHOD)
656 {
|
651 /*
652 * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx
653 * control method that corresponds to this GPE
654 */
655 Info.Node = LocalGpeEventInfo.Dispatch.MethodNode;
656 Info.Parameters = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT *, GpeEventInfo);
657 Info.ParameterType = ACPI_PARAM_GPE;
| 657 /* Allocate the evaluation information block */
|
658
| 658
|
659 Status = AcpiNsEvaluateByHandle (&Info);
| 659 Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
660 if (!Info)
661 {
662 Status = AE_NO_MEMORY;
663 }
664 else
665 {
666 /*
667 * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx
668 * control method that corresponds to this GPE
669 */
670 Info->PrefixNode = LocalGpeEventInfo.Dispatch.MethodNode;
671 Info->Parameters = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT *, GpeEventInfo);
672 Info->ParameterType = ACPI_PARAM_GPE;
673 Info->Flags = ACPI_IGNORE_RETURN_VALUE;
674
675 Status = AcpiNsEvaluate (Info);
676 ACPI_FREE (Info);
677 }
678
|
660 if (ACPI_FAILURE (Status))
661 {
| 679 if (ACPI_FAILURE (Status))
680 {
|
662 ACPI_REPORT_ERROR ((
663 "%s while evaluating method [%4.4s] for GPE[%2X]\n",
664 AcpiFormatException (Status),
665 AcpiUtGetNodeName (LocalGpeEventInfo.Dispatch.MethodNode),
666 GpeNumber));
| 681 ACPI_EXCEPTION ((AE_INFO, Status,
682 "while evaluating GPE method [%4.4s]",
683 AcpiUtGetNodeName (LocalGpeEventInfo.Dispatch.MethodNode)));
|
667 }
668 }
669
670 if ((LocalGpeEventInfo.Flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
671 ACPI_GPE_LEVEL_TRIGGERED)
672 {
673 /*
674 * GPE is level-triggered, we clear the GPE status bit after
675 * handling the event.
676 */
677 Status = AcpiHwClearGpe (&LocalGpeEventInfo);
678 if (ACPI_FAILURE (Status))
679 {
680 return_VOID;
681 }
682 }
683
684 /* Enable this GPE */
685
686 (void) AcpiHwWriteGpeEnableReg (&LocalGpeEventInfo);
687 return_VOID;
688}
689
690
691/*******************************************************************************
692 *
693 * FUNCTION: AcpiEvGpeDispatch
694 *
695 * PARAMETERS: GpeEventInfo - Info for this GPE
696 * GpeNumber - Number relative to the parent GPE block
697 *
698 * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
699 *
700 * DESCRIPTION: Dispatch a General Purpose Event to either a function (e.g. EC)
701 * or method (e.g. _Lxx/_Exx) handler.
702 *
703 * This function executes at interrupt level.
704 *
705 ******************************************************************************/
706
707UINT32
708AcpiEvGpeDispatch (
709 ACPI_GPE_EVENT_INFO *GpeEventInfo,
710 UINT32 GpeNumber)
711{
712 ACPI_STATUS Status;
713
714
| 684 }
685 }
686
687 if ((LocalGpeEventInfo.Flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
688 ACPI_GPE_LEVEL_TRIGGERED)
689 {
690 /*
691 * GPE is level-triggered, we clear the GPE status bit after
692 * handling the event.
693 */
694 Status = AcpiHwClearGpe (&LocalGpeEventInfo);
695 if (ACPI_FAILURE (Status))
696 {
697 return_VOID;
698 }
699 }
700
701 /* Enable this GPE */
702
703 (void) AcpiHwWriteGpeEnableReg (&LocalGpeEventInfo);
704 return_VOID;
705}
706
707
708/*******************************************************************************
709 *
710 * FUNCTION: AcpiEvGpeDispatch
711 *
712 * PARAMETERS: GpeEventInfo - Info for this GPE
713 * GpeNumber - Number relative to the parent GPE block
714 *
715 * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
716 *
717 * DESCRIPTION: Dispatch a General Purpose Event to either a function (e.g. EC)
718 * or method (e.g. _Lxx/_Exx) handler.
719 *
720 * This function executes at interrupt level.
721 *
722 ******************************************************************************/
723
724UINT32
725AcpiEvGpeDispatch (
726 ACPI_GPE_EVENT_INFO *GpeEventInfo,
727 UINT32 GpeNumber)
728{
729 ACPI_STATUS Status;
730
731
|
715 ACPI_FUNCTION_TRACE ("EvGpeDispatch");
| 732 ACPI_FUNCTION_TRACE (EvGpeDispatch);
|
716
717
| 733
734
|
| 735 AcpiGpeCount++;
736
|
718 /*
719 * If edge-triggered, clear the GPE status bit now. Note that
720 * level-triggered events are cleared after the GPE is serviced.
721 */
722 if ((GpeEventInfo->Flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
723 ACPI_GPE_EDGE_TRIGGERED)
724 {
725 Status = AcpiHwClearGpe (GpeEventInfo);
726 if (ACPI_FAILURE (Status))
727 {
| 737 /*
738 * If edge-triggered, clear the GPE status bit now. Note that
739 * level-triggered events are cleared after the GPE is serviced.
740 */
741 if ((GpeEventInfo->Flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
742 ACPI_GPE_EDGE_TRIGGERED)
743 {
744 Status = AcpiHwClearGpe (GpeEventInfo);
745 if (ACPI_FAILURE (Status))
746 {
|
728 ACPI_REPORT_ERROR ((
729 "AcpiEvGpeDispatch: %s, Unable to clear GPE[%2X]\n",
730 AcpiFormatException (Status), GpeNumber));
| 747 ACPI_EXCEPTION ((AE_INFO, Status,
748 "Unable to clear GPE[%2X]", GpeNumber));
|
731 return_UINT32 (ACPI_INTERRUPT_NOT_HANDLED);
732 }
733 }
734
| 749 return_UINT32 (ACPI_INTERRUPT_NOT_HANDLED);
750 }
751 }
752
|
735 /* Save current system state */
736
737 if (AcpiGbl_SystemAwakeAndRunning)
| 753 if (!AcpiGbl_SystemAwakeAndRunning)
|
738 {
| 754 {
|
739 ACPI_SET_BIT (GpeEventInfo->Flags, ACPI_GPE_SYSTEM_RUNNING);
| 755 /*
756 * We just woke up because of a wake GPE. Disable any further GPEs
757 * until we are fully up and running (Only wake GPEs should be enabled
758 * at this time, but we just brute-force disable them all.)
759 * 1) We must disable this particular wake GPE so it won't fire again
760 * 2) We want to disable all wake GPEs, since we are now awake
761 */
762 (void) AcpiHwDisableAllGpes ();
|
740 }
| 763 }
|
741 else
742 {
743 ACPI_CLEAR_BIT (GpeEventInfo->Flags, ACPI_GPE_SYSTEM_RUNNING);
744 }
| |
745
746 /*
| 764
765 /*
|
747 * Dispatch the GPE to either an installed handler, or the control
748 * method associated with this GPE (_Lxx or _Exx).
749 * If a handler exists, we invoke it and do not attempt to run the method.
750 * If there is neither a handler nor a method, we disable the level to
751 * prevent further events from coming in here.
| 766 * Dispatch the GPE to either an installed handler, or the control method
767 * associated with this GPE (_Lxx or _Exx). If a handler exists, we invoke
768 * it and do not attempt to run the method. If there is neither a handler
769 * nor a method, we disable this GPE to prevent further such pointless
770 * events from firing.
|
752 */
753 switch (GpeEventInfo->Flags & ACPI_GPE_DISPATCH_MASK)
754 {
755 case ACPI_GPE_DISPATCH_HANDLER:
756
757 /*
758 * Invoke the installed handler (at interrupt level)
759 * Ignore return status for now. TBD: leave GPE disabled on error?
760 */
761 (void) GpeEventInfo->Dispatch.Handler->Address (
762 GpeEventInfo->Dispatch.Handler->Context);
763
764 /* It is now safe to clear level-triggered events. */
765
766 if ((GpeEventInfo->Flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
767 ACPI_GPE_LEVEL_TRIGGERED)
768 {
769 Status = AcpiHwClearGpe (GpeEventInfo);
770 if (ACPI_FAILURE (Status))
771 {
| 771 */
772 switch (GpeEventInfo->Flags & ACPI_GPE_DISPATCH_MASK)
773 {
774 case ACPI_GPE_DISPATCH_HANDLER:
775
776 /*
777 * Invoke the installed handler (at interrupt level)
778 * Ignore return status for now. TBD: leave GPE disabled on error?
779 */
780 (void) GpeEventInfo->Dispatch.Handler->Address (
781 GpeEventInfo->Dispatch.Handler->Context);
782
783 /* It is now safe to clear level-triggered events. */
784
785 if ((GpeEventInfo->Flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
786 ACPI_GPE_LEVEL_TRIGGERED)
787 {
788 Status = AcpiHwClearGpe (GpeEventInfo);
789 if (ACPI_FAILURE (Status))
790 {
|
772 ACPI_REPORT_ERROR ((
773 "AcpiEvGpeDispatch: %s, Unable to clear GPE[%2X]\n",
774 AcpiFormatException (Status), GpeNumber));
| 791 ACPI_EXCEPTION ((AE_INFO, Status,
792 "Unable to clear GPE[%2X]", GpeNumber));
|
775 return_UINT32 (ACPI_INTERRUPT_NOT_HANDLED);
776 }
777 }
778 break;
779
780 case ACPI_GPE_DISPATCH_METHOD:
781
782 /*
| 793 return_UINT32 (ACPI_INTERRUPT_NOT_HANDLED);
794 }
795 }
796 break;
797
798 case ACPI_GPE_DISPATCH_METHOD:
799
800 /*
|
783 * Disable GPE, so it doesn't keep firing before the method has a
784 * chance to run.
| 801 * Disable the GPE, so it doesn't keep firing before the method has a
802 * chance to run (it runs asynchronously with interrupts enabled).
|
785 */
786 Status = AcpiEvDisableGpe (GpeEventInfo);
787 if (ACPI_FAILURE (Status))
788 {
| 803 */
804 Status = AcpiEvDisableGpe (GpeEventInfo);
805 if (ACPI_FAILURE (Status))
806 {
|
789 ACPI_REPORT_ERROR ((
790 "AcpiEvGpeDispatch: %s, Unable to disable GPE[%2X]\n",
791 AcpiFormatException (Status), GpeNumber));
| 807 ACPI_EXCEPTION ((AE_INFO, Status,
808 "Unable to disable GPE[%2X]", GpeNumber));
|
792 return_UINT32 (ACPI_INTERRUPT_NOT_HANDLED);
793 }
794
795 /*
796 * Execute the method associated with the GPE
797 * NOTE: Level-triggered GPEs are cleared after the method completes.
798 */
| 809 return_UINT32 (ACPI_INTERRUPT_NOT_HANDLED);
810 }
811
812 /*
813 * Execute the method associated with the GPE
814 * NOTE: Level-triggered GPEs are cleared after the method completes.
815 */
|
799 Status = AcpiOsQueueForExecution (OSD_PRIORITY_GPE,
| 816 Status = AcpiOsExecute (OSL_GPE_HANDLER,
|
800 AcpiEvAsynchExecuteGpeMethod, GpeEventInfo);
801 if (ACPI_FAILURE (Status))
802 {
| 817 AcpiEvAsynchExecuteGpeMethod, GpeEventInfo);
818 if (ACPI_FAILURE (Status))
819 {
|
803 ACPI_REPORT_ERROR ((
804 "AcpiEvGpeDispatch: %s, Unable to queue handler for GPE[%2X] - event disabled\n",
805 AcpiFormatException (Status), GpeNumber));
| 820 ACPI_EXCEPTION ((AE_INFO, Status,
821 "Unable to queue handler for GPE[%2X] - event disabled",
822 GpeNumber));
|
806 }
807 break;
808
809 default:
810
811 /* No handler or method to run! */
812
| 823 }
824 break;
825
826 default:
827
828 /* No handler or method to run! */
829
|
813 ACPI_REPORT_ERROR ((
814 "AcpiEvGpeDispatch: No handler or method for GPE[%2X], disabling event\n",
| 830 ACPI_ERROR ((AE_INFO,
831 "No handler or method for GPE[%2X], disabling event",
|
815 GpeNumber));
816
817 /*
| 832 GpeNumber));
833
834 /*
|
818 * Disable the GPE. The GPE will remain disabled until the ACPI
| 835 * Disable the GPE. The GPE will remain disabled until the ACPI
|
819 * Core Subsystem is restarted, or a handler is installed.
820 */
821 Status = AcpiEvDisableGpe (GpeEventInfo);
822 if (ACPI_FAILURE (Status))
823 {
| 836 * Core Subsystem is restarted, or a handler is installed.
837 */
838 Status = AcpiEvDisableGpe (GpeEventInfo);
839 if (ACPI_FAILURE (Status))
840 {
|
824 ACPI_REPORT_ERROR ((
825 "AcpiEvGpeDispatch: %s, Unable to disable GPE[%2X]\n",
826 AcpiFormatException (Status), GpeNumber));
| 841 ACPI_EXCEPTION ((AE_INFO, Status,
842 "Unable to disable GPE[%2X]", GpeNumber));
|
827 return_UINT32 (ACPI_INTERRUPT_NOT_HANDLED);
828 }
829 break;
830 }
831
832 return_UINT32 (ACPI_INTERRUPT_HANDLED);
833}
834
| 843 return_UINT32 (ACPI_INTERRUPT_NOT_HANDLED);
844 }
845 break;
846 }
847
848 return_UINT32 (ACPI_INTERRUPT_HANDLED);
849}
850
|
835
836#ifdef ACPI_GPE_NOTIFY_CHECK
837/*******************************************************************************
838 * TBD: NOT USED, PROTOTYPE ONLY AND WILL PROBABLY BE REMOVED
839 *
840 * FUNCTION: AcpiEvCheckForWakeOnlyGpe
841 *
842 * PARAMETERS: GpeEventInfo - info for this GPE
843 *
844 * RETURN: Status
845 *
846 * DESCRIPTION: Determine if a a GPE is "wake-only".
847 *
848 * Called from Notify() code in interpreter when a "DeviceWake"
849 * Notify comes in.
850 *
851 ******************************************************************************/
852
853ACPI_STATUS
854AcpiEvCheckForWakeOnlyGpe (
855 ACPI_GPE_EVENT_INFO *GpeEventInfo)
856{
857 ACPI_STATUS Status;
858
859
860 ACPI_FUNCTION_TRACE ("EvCheckForWakeOnlyGpe");
861
862
863 if ((GpeEventInfo) && /* Only >0 for _Lxx/_Exx */
864 ((GpeEventInfo->Flags & ACPI_GPE_SYSTEM_MASK) == ACPI_GPE_SYSTEM_RUNNING)) /* System state at GPE time */
865 {
866 /* This must be a wake-only GPE, disable it */
867
868 Status = AcpiEvDisableGpe (GpeEventInfo);
869
870 /* Set GPE to wake-only. Do not change wake disabled/enabled status */
871
872 AcpiEvSetGpeType (GpeEventInfo, ACPI_GPE_TYPE_WAKE);
873
874 ACPI_REPORT_INFO (("GPE %p was updated from wake/run to wake-only\n",
875 GpeEventInfo));
876
877 /* This was a wake-only GPE */
878
879 return_ACPI_STATUS (AE_WAKE_ONLY_GPE);
880 }
881
882 return_ACPI_STATUS (AE_OK);
883}
884#endif
885
886
| |
| |