1/*******************************************************************************
2 *
3 * Module Name: evsci - System Control Interrupt configuration and
4 * legacy to ACPI mode state transition functions
5 *
6 ******************************************************************************/
7
8/*
| 1/*******************************************************************************
2 *
3 * Module Name: evsci - System Control Interrupt configuration and
4 * legacy to ACPI mode state transition functions
5 *
6 ******************************************************************************/
7
8/*
|
9 * Copyright (C) 2000 - 2012, Intel Corp.
| 9 * Copyright (C) 2000 - 2013, Intel Corp.
|
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions, and the following disclaimer,
17 * without modification.
18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19 * substantially similar to the "NO WARRANTY" disclaimer below
20 * ("Disclaimer") and any redistribution must be conditioned upon
21 * including a substantially similar Disclaimer requirement for further
22 * binary redistribution.
23 * 3. Neither the names of the above-listed copyright holders nor the names
24 * of any contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * Alternatively, this software may be distributed under the terms of the
28 * GNU General Public License ("GPL") version 2 as published by the Free
29 * Software Foundation.
30 *
31 * NO WARRANTY
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGES.
43 */
44
45#include <contrib/dev/acpica/include/acpi.h>
46#include <contrib/dev/acpica/include/accommon.h>
47#include <contrib/dev/acpica/include/acevents.h>
48
49
50#define _COMPONENT ACPI_EVENTS
51 ACPI_MODULE_NAME ("evsci")
52
53#if (!ACPI_REDUCED_HARDWARE) /* Entire module */
54
55/* Local prototypes */
56
57static UINT32 ACPI_SYSTEM_XFACE
58AcpiEvSciXruptHandler (
59 void *Context);
60
61
62/*******************************************************************************
63 *
64 * FUNCTION: AcpiEvSciXruptHandler
65 *
66 * PARAMETERS: Context - Calling Context
67 *
68 * RETURN: Status code indicates whether interrupt was handled.
69 *
70 * DESCRIPTION: Interrupt handler that will figure out what function or
71 * control method to call to deal with a SCI.
72 *
73 ******************************************************************************/
74
75static UINT32 ACPI_SYSTEM_XFACE
76AcpiEvSciXruptHandler (
77 void *Context)
78{
79 ACPI_GPE_XRUPT_INFO *GpeXruptList = Context;
80 UINT32 InterruptHandled = ACPI_INTERRUPT_NOT_HANDLED;
81
82
83 ACPI_FUNCTION_TRACE (EvSciXruptHandler);
84
85
86 /*
87 * We are guaranteed by the ACPI CA initialization/shutdown code that
88 * if this interrupt handler is installed, ACPI is enabled.
89 */
90
91 /*
92 * Fixed Events:
93 * Check for and dispatch any Fixed Events that have occurred
94 */
95 InterruptHandled |= AcpiEvFixedEventDetect ();
96
97 /*
98 * General Purpose Events:
99 * Check for and dispatch any GPEs that have occurred
100 */
101 InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
102
103 AcpiSciCount++;
| 10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions, and the following disclaimer,
17 * without modification.
18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19 * substantially similar to the "NO WARRANTY" disclaimer below
20 * ("Disclaimer") and any redistribution must be conditioned upon
21 * including a substantially similar Disclaimer requirement for further
22 * binary redistribution.
23 * 3. Neither the names of the above-listed copyright holders nor the names
24 * of any contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * Alternatively, this software may be distributed under the terms of the
28 * GNU General Public License ("GPL") version 2 as published by the Free
29 * Software Foundation.
30 *
31 * NO WARRANTY
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGES.
43 */
44
45#include <contrib/dev/acpica/include/acpi.h>
46#include <contrib/dev/acpica/include/accommon.h>
47#include <contrib/dev/acpica/include/acevents.h>
48
49
50#define _COMPONENT ACPI_EVENTS
51 ACPI_MODULE_NAME ("evsci")
52
53#if (!ACPI_REDUCED_HARDWARE) /* Entire module */
54
55/* Local prototypes */
56
57static UINT32 ACPI_SYSTEM_XFACE
58AcpiEvSciXruptHandler (
59 void *Context);
60
61
62/*******************************************************************************
63 *
64 * FUNCTION: AcpiEvSciXruptHandler
65 *
66 * PARAMETERS: Context - Calling Context
67 *
68 * RETURN: Status code indicates whether interrupt was handled.
69 *
70 * DESCRIPTION: Interrupt handler that will figure out what function or
71 * control method to call to deal with a SCI.
72 *
73 ******************************************************************************/
74
75static UINT32 ACPI_SYSTEM_XFACE
76AcpiEvSciXruptHandler (
77 void *Context)
78{
79 ACPI_GPE_XRUPT_INFO *GpeXruptList = Context;
80 UINT32 InterruptHandled = ACPI_INTERRUPT_NOT_HANDLED;
81
82
83 ACPI_FUNCTION_TRACE (EvSciXruptHandler);
84
85
86 /*
87 * We are guaranteed by the ACPI CA initialization/shutdown code that
88 * if this interrupt handler is installed, ACPI is enabled.
89 */
90
91 /*
92 * Fixed Events:
93 * Check for and dispatch any Fixed Events that have occurred
94 */
95 InterruptHandled |= AcpiEvFixedEventDetect ();
96
97 /*
98 * General Purpose Events:
99 * Check for and dispatch any GPEs that have occurred
100 */
101 InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
102
103 AcpiSciCount++;
|
104 return_UINT32 (InterruptHandled);
| 104 return_VALUE (InterruptHandled);
|
105}
106
107
108/*******************************************************************************
109 *
110 * FUNCTION: AcpiEvGpeXruptHandler
111 *
112 * PARAMETERS: Context - Calling Context
113 *
114 * RETURN: Status code indicates whether interrupt was handled.
115 *
116 * DESCRIPTION: Handler for GPE Block Device interrupts
117 *
118 ******************************************************************************/
119
120UINT32 ACPI_SYSTEM_XFACE
121AcpiEvGpeXruptHandler (
122 void *Context)
123{
124 ACPI_GPE_XRUPT_INFO *GpeXruptList = Context;
125 UINT32 InterruptHandled = ACPI_INTERRUPT_NOT_HANDLED;
126
127
128 ACPI_FUNCTION_TRACE (EvGpeXruptHandler);
129
130
131 /*
132 * We are guaranteed by the ACPI CA initialization/shutdown code that
133 * if this interrupt handler is installed, ACPI is enabled.
134 */
135
136 /* GPEs: Check for and dispatch any GPEs that have occurred */
137
138 InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
139
| 105}
106
107
108/*******************************************************************************
109 *
110 * FUNCTION: AcpiEvGpeXruptHandler
111 *
112 * PARAMETERS: Context - Calling Context
113 *
114 * RETURN: Status code indicates whether interrupt was handled.
115 *
116 * DESCRIPTION: Handler for GPE Block Device interrupts
117 *
118 ******************************************************************************/
119
120UINT32 ACPI_SYSTEM_XFACE
121AcpiEvGpeXruptHandler (
122 void *Context)
123{
124 ACPI_GPE_XRUPT_INFO *GpeXruptList = Context;
125 UINT32 InterruptHandled = ACPI_INTERRUPT_NOT_HANDLED;
126
127
128 ACPI_FUNCTION_TRACE (EvGpeXruptHandler);
129
130
131 /*
132 * We are guaranteed by the ACPI CA initialization/shutdown code that
133 * if this interrupt handler is installed, ACPI is enabled.
134 */
135
136 /* GPEs: Check for and dispatch any GPEs that have occurred */
137
138 InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
139
|
140 return_UINT32 (InterruptHandled);
| 140 return_VALUE (InterruptHandled);
|
141}
142
143
144/******************************************************************************
145 *
146 * FUNCTION: AcpiEvInstallSciHandler
147 *
148 * PARAMETERS: none
149 *
150 * RETURN: Status
151 *
152 * DESCRIPTION: Installs SCI handler.
153 *
154 ******************************************************************************/
155
156UINT32
157AcpiEvInstallSciHandler (
158 void)
159{
160 UINT32 Status = AE_OK;
161
162
163 ACPI_FUNCTION_TRACE (EvInstallSciHandler);
164
165
166 Status = AcpiOsInstallInterruptHandler ((UINT32) AcpiGbl_FADT.SciInterrupt,
167 AcpiEvSciXruptHandler, AcpiGbl_GpeXruptListHead);
168 return_ACPI_STATUS (Status);
169}
170
171
172/******************************************************************************
173 *
174 * FUNCTION: AcpiEvRemoveSciHandler
175 *
176 * PARAMETERS: none
177 *
178 * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not
179 * installed to begin with
180 *
181 * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
182 * taken.
183 *
184 * Note: It doesn't seem important to disable all events or set the event
185 * enable registers to their original values. The OS should disable
186 * the SCI interrupt level when the handler is removed, so no more
187 * events will come in.
188 *
189 ******************************************************************************/
190
191ACPI_STATUS
192AcpiEvRemoveSciHandler (
193 void)
194{
195 ACPI_STATUS Status;
196
197
198 ACPI_FUNCTION_TRACE (EvRemoveSciHandler);
199
200
201 /* Just let the OS remove the handler and disable the level */
202
203 Status = AcpiOsRemoveInterruptHandler ((UINT32) AcpiGbl_FADT.SciInterrupt,
204 AcpiEvSciXruptHandler);
205
206 return_ACPI_STATUS (Status);
207}
208
209#endif /* !ACPI_REDUCED_HARDWARE */
| 141}
142
143
144/******************************************************************************
145 *
146 * FUNCTION: AcpiEvInstallSciHandler
147 *
148 * PARAMETERS: none
149 *
150 * RETURN: Status
151 *
152 * DESCRIPTION: Installs SCI handler.
153 *
154 ******************************************************************************/
155
156UINT32
157AcpiEvInstallSciHandler (
158 void)
159{
160 UINT32 Status = AE_OK;
161
162
163 ACPI_FUNCTION_TRACE (EvInstallSciHandler);
164
165
166 Status = AcpiOsInstallInterruptHandler ((UINT32) AcpiGbl_FADT.SciInterrupt,
167 AcpiEvSciXruptHandler, AcpiGbl_GpeXruptListHead);
168 return_ACPI_STATUS (Status);
169}
170
171
172/******************************************************************************
173 *
174 * FUNCTION: AcpiEvRemoveSciHandler
175 *
176 * PARAMETERS: none
177 *
178 * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not
179 * installed to begin with
180 *
181 * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
182 * taken.
183 *
184 * Note: It doesn't seem important to disable all events or set the event
185 * enable registers to their original values. The OS should disable
186 * the SCI interrupt level when the handler is removed, so no more
187 * events will come in.
188 *
189 ******************************************************************************/
190
191ACPI_STATUS
192AcpiEvRemoveSciHandler (
193 void)
194{
195 ACPI_STATUS Status;
196
197
198 ACPI_FUNCTION_TRACE (EvRemoveSciHandler);
199
200
201 /* Just let the OS remove the handler and disable the level */
202
203 Status = AcpiOsRemoveInterruptHandler ((UINT32) AcpiGbl_FADT.SciInterrupt,
204 AcpiEvSciXruptHandler);
205
206 return_ACPI_STATUS (Status);
207}
208
209#endif /* !ACPI_REDUCED_HARDWARE */
|