14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66
67 * make.
68 *
69 * 3.3. Redistribution of Executable. Redistribution in executable form of any
70 * substantial portion of the Covered Code or modification must reproduce the
71 * above Copyright Notice, and the following Disclaimer and Export Compliance
72 * provision in the documentation and/or other materials provided with the
73 * distribution.
74 *
75 * 3.4. Intel retains all right, title, and interest in and to the Original
76 * Intel Code.
77 *
78 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
79 * Intel shall be used in advertising or otherwise to promote the sale, use or
80 * other dealings in products derived from or relating to the Covered Code
81 * without prior written authorization from Intel.
82 *
83 * 4. Disclaimer and Export Compliance
84 *
85 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
86 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
87 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
88 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
89 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
90 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
91 * PARTICULAR PURPOSE.
92 *
93 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
94 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
95 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
96 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
97 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
98 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
99 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
100 * LIMITED REMEDY.
101 *
102 * 4.3. Licensee shall not export, either directly or indirectly, any of this
103 * software or system incorporating such software without first obtaining any
104 * required license or other approval from the U. S. Department of Commerce or
105 * any other agency or department of the United States Government. In the
106 * event Licensee exports any such software from the United States or
107 * re-exports any such software from a foreign destination, Licensee shall
108 * ensure that the distribution and export/re-export of the software is in
109 * compliance with all laws, regulations, orders, or other restrictions of the
110 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
111 * any of its subsidiaries will export/re-export any technical data, process,
112 * software, or service, directly or indirectly, to any country for which the
113 * United States government or any agency thereof requires an export license,
114 * other governmental approval, or letter of assurance, without first obtaining
115 * such license, approval or letter.
116 *
117 *****************************************************************************/
118
119#include "acpi.h"
120#include "acevents.h"
121
122
123#define _COMPONENT ACPI_EVENTS
124 ACPI_MODULE_NAME ("evsci")
125
126
127/*******************************************************************************
128 *
129 * FUNCTION: AcpiEvSciXruptHandler
130 *
131 * PARAMETERS: Context - Calling Context
132 *
133 * RETURN: Status code indicates whether interrupt was handled.
134 *
135 * DESCRIPTION: Interrupt handler that will figure out what function or
136 * control method to call to deal with a SCI.
137 *
138 ******************************************************************************/
139
140static UINT32 ACPI_SYSTEM_XFACE
141AcpiEvSciXruptHandler (
142 void *Context)
143{
144 ACPI_GPE_XRUPT_INFO *GpeXruptList = Context;
145 UINT32 InterruptHandled = ACPI_INTERRUPT_NOT_HANDLED;
146
147
148 ACPI_FUNCTION_TRACE("EvSciXruptHandler");
149
150
151 /*
152 * We are guaranteed by the ACPI CA initialization/shutdown code that
153 * if this interrupt handler is installed, ACPI is enabled.
154 */
155
156 /*
157 * Fixed Events:
158 * Check for and dispatch any Fixed Events that have occurred
159 */
160 InterruptHandled |= AcpiEvFixedEventDetect ();
161
162 /*
163 * General Purpose Events:
164 * Check for and dispatch any GPEs that have occurred
165 */
166 InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
167
168 return_VALUE (InterruptHandled);
169}
170
171
172/*******************************************************************************
173 *
174 * FUNCTION: AcpiEvGpeXruptHandler
175 *
176 * PARAMETERS: Context - Calling Context
177 *
178 * RETURN: Status code indicates whether interrupt was handled.
179 *
180 * DESCRIPTION: Handler for GPE Block Device interrupts
181 *
182 ******************************************************************************/
183
184UINT32 ACPI_SYSTEM_XFACE
185AcpiEvGpeXruptHandler (
186 void *Context)
187{
188 ACPI_GPE_XRUPT_INFO *GpeXruptList = Context;
189 UINT32 InterruptHandled = ACPI_INTERRUPT_NOT_HANDLED;
190
191
192 ACPI_FUNCTION_TRACE("EvGpeXruptHandler");
193
194
195 /*
196 * We are guaranteed by the ACPI CA initialization/shutdown code that
197 * if this interrupt handler is installed, ACPI is enabled.
198 */
199
200 /*
201 * GPEs:
202 * Check for and dispatch any GPEs that have occurred
203 */
204 InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
205
206 return_VALUE (InterruptHandled);
207}
208
209
210/******************************************************************************
211 *
212 * FUNCTION: AcpiEvInstallSciHandler
213 *
214 * PARAMETERS: none
215 *
216 * RETURN: Status
217 *
218 * DESCRIPTION: Installs SCI handler.
219 *
220 ******************************************************************************/
221
222UINT32
223AcpiEvInstallSciHandler (void)
224{
225 UINT32 Status = AE_OK;
226
227
228 ACPI_FUNCTION_TRACE ("EvInstallSciHandler");
229
230
231 Status = AcpiOsInstallInterruptHandler ((UINT32) AcpiGbl_FADT->SciInt,
232 AcpiEvSciXruptHandler, AcpiGbl_GpeXruptListHead);
233 return_ACPI_STATUS (Status);
234}
235
236
237/******************************************************************************
238 *
239 * FUNCTION: AcpiEvRemoveSciHandler
240 *
241 * PARAMETERS: none
242 *
243 * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not
244 * installed to begin with
245 *
246 * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
247 * taken.
248 *
249 * Note: It doesn't seem important to disable all events or set the event
250 * enable registers to their original values. The OS should disable
251 * the SCI interrupt level when the handler is removed, so no more
252 * events will come in.
253 *
254 ******************************************************************************/
255
256ACPI_STATUS
257AcpiEvRemoveSciHandler (void)
258{
259 ACPI_STATUS Status;
260
261
262 ACPI_FUNCTION_TRACE ("EvRemoveSciHandler");
263
264
265 /* Just let the OS remove the handler and disable the level */
266
267 Status = AcpiOsRemoveInterruptHandler ((UINT32) AcpiGbl_FADT->SciInt,
268 AcpiEvSciXruptHandler);
269
270 return_ACPI_STATUS (Status);
271}
272
273
| 14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66
67 * make.
68 *
69 * 3.3. Redistribution of Executable. Redistribution in executable form of any
70 * substantial portion of the Covered Code or modification must reproduce the
71 * above Copyright Notice, and the following Disclaimer and Export Compliance
72 * provision in the documentation and/or other materials provided with the
73 * distribution.
74 *
75 * 3.4. Intel retains all right, title, and interest in and to the Original
76 * Intel Code.
77 *
78 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
79 * Intel shall be used in advertising or otherwise to promote the sale, use or
80 * other dealings in products derived from or relating to the Covered Code
81 * without prior written authorization from Intel.
82 *
83 * 4. Disclaimer and Export Compliance
84 *
85 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
86 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
87 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
88 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
89 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
90 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
91 * PARTICULAR PURPOSE.
92 *
93 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
94 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
95 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
96 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
97 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
98 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
99 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
100 * LIMITED REMEDY.
101 *
102 * 4.3. Licensee shall not export, either directly or indirectly, any of this
103 * software or system incorporating such software without first obtaining any
104 * required license or other approval from the U. S. Department of Commerce or
105 * any other agency or department of the United States Government. In the
106 * event Licensee exports any such software from the United States or
107 * re-exports any such software from a foreign destination, Licensee shall
108 * ensure that the distribution and export/re-export of the software is in
109 * compliance with all laws, regulations, orders, or other restrictions of the
110 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
111 * any of its subsidiaries will export/re-export any technical data, process,
112 * software, or service, directly or indirectly, to any country for which the
113 * United States government or any agency thereof requires an export license,
114 * other governmental approval, or letter of assurance, without first obtaining
115 * such license, approval or letter.
116 *
117 *****************************************************************************/
118
119#include "acpi.h"
120#include "acevents.h"
121
122
123#define _COMPONENT ACPI_EVENTS
124 ACPI_MODULE_NAME ("evsci")
125
126
127/*******************************************************************************
128 *
129 * FUNCTION: AcpiEvSciXruptHandler
130 *
131 * PARAMETERS: Context - Calling Context
132 *
133 * RETURN: Status code indicates whether interrupt was handled.
134 *
135 * DESCRIPTION: Interrupt handler that will figure out what function or
136 * control method to call to deal with a SCI.
137 *
138 ******************************************************************************/
139
140static UINT32 ACPI_SYSTEM_XFACE
141AcpiEvSciXruptHandler (
142 void *Context)
143{
144 ACPI_GPE_XRUPT_INFO *GpeXruptList = Context;
145 UINT32 InterruptHandled = ACPI_INTERRUPT_NOT_HANDLED;
146
147
148 ACPI_FUNCTION_TRACE("EvSciXruptHandler");
149
150
151 /*
152 * We are guaranteed by the ACPI CA initialization/shutdown code that
153 * if this interrupt handler is installed, ACPI is enabled.
154 */
155
156 /*
157 * Fixed Events:
158 * Check for and dispatch any Fixed Events that have occurred
159 */
160 InterruptHandled |= AcpiEvFixedEventDetect ();
161
162 /*
163 * General Purpose Events:
164 * Check for and dispatch any GPEs that have occurred
165 */
166 InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
167
168 return_VALUE (InterruptHandled);
169}
170
171
172/*******************************************************************************
173 *
174 * FUNCTION: AcpiEvGpeXruptHandler
175 *
176 * PARAMETERS: Context - Calling Context
177 *
178 * RETURN: Status code indicates whether interrupt was handled.
179 *
180 * DESCRIPTION: Handler for GPE Block Device interrupts
181 *
182 ******************************************************************************/
183
184UINT32 ACPI_SYSTEM_XFACE
185AcpiEvGpeXruptHandler (
186 void *Context)
187{
188 ACPI_GPE_XRUPT_INFO *GpeXruptList = Context;
189 UINT32 InterruptHandled = ACPI_INTERRUPT_NOT_HANDLED;
190
191
192 ACPI_FUNCTION_TRACE("EvGpeXruptHandler");
193
194
195 /*
196 * We are guaranteed by the ACPI CA initialization/shutdown code that
197 * if this interrupt handler is installed, ACPI is enabled.
198 */
199
200 /*
201 * GPEs:
202 * Check for and dispatch any GPEs that have occurred
203 */
204 InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
205
206 return_VALUE (InterruptHandled);
207}
208
209
210/******************************************************************************
211 *
212 * FUNCTION: AcpiEvInstallSciHandler
213 *
214 * PARAMETERS: none
215 *
216 * RETURN: Status
217 *
218 * DESCRIPTION: Installs SCI handler.
219 *
220 ******************************************************************************/
221
222UINT32
223AcpiEvInstallSciHandler (void)
224{
225 UINT32 Status = AE_OK;
226
227
228 ACPI_FUNCTION_TRACE ("EvInstallSciHandler");
229
230
231 Status = AcpiOsInstallInterruptHandler ((UINT32) AcpiGbl_FADT->SciInt,
232 AcpiEvSciXruptHandler, AcpiGbl_GpeXruptListHead);
233 return_ACPI_STATUS (Status);
234}
235
236
237/******************************************************************************
238 *
239 * FUNCTION: AcpiEvRemoveSciHandler
240 *
241 * PARAMETERS: none
242 *
243 * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not
244 * installed to begin with
245 *
246 * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
247 * taken.
248 *
249 * Note: It doesn't seem important to disable all events or set the event
250 * enable registers to their original values. The OS should disable
251 * the SCI interrupt level when the handler is removed, so no more
252 * events will come in.
253 *
254 ******************************************************************************/
255
256ACPI_STATUS
257AcpiEvRemoveSciHandler (void)
258{
259 ACPI_STATUS Status;
260
261
262 ACPI_FUNCTION_TRACE ("EvRemoveSciHandler");
263
264
265 /* Just let the OS remove the handler and disable the level */
266
267 Status = AcpiOsRemoveInterruptHandler ((UINT32) AcpiGbl_FADT->SciInt,
268 AcpiEvSciXruptHandler);
269
270 return_ACPI_STATUS (Status);
271}
272
273
|