1bc36eafdSMike Gerdts /******************************************************************************
2bc36eafdSMike Gerdts *
3bc36eafdSMike Gerdts * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable
4bc36eafdSMike Gerdts *
5bc36eafdSMike Gerdts *****************************************************************************/
6bc36eafdSMike Gerdts
7*35786f68SRobert Mustacchi /******************************************************************************
8*35786f68SRobert Mustacchi *
9*35786f68SRobert Mustacchi * 1. Copyright Notice
10*35786f68SRobert Mustacchi *
11*35786f68SRobert Mustacchi * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
12bc36eafdSMike Gerdts * All rights reserved.
13bc36eafdSMike Gerdts *
14*35786f68SRobert Mustacchi * 2. License
15*35786f68SRobert Mustacchi *
16*35786f68SRobert Mustacchi * 2.1. This is your license from Intel Corp. under its intellectual property
17*35786f68SRobert Mustacchi * rights. You may have additional license terms from the party that provided
18*35786f68SRobert Mustacchi * you this software, covering your right to use that party's intellectual
19*35786f68SRobert Mustacchi * property rights.
20*35786f68SRobert Mustacchi *
21*35786f68SRobert Mustacchi * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22*35786f68SRobert Mustacchi * copy of the source code appearing in this file ("Covered Code") an
23*35786f68SRobert Mustacchi * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24*35786f68SRobert Mustacchi * base code distributed originally by Intel ("Original Intel Code") to copy,
25*35786f68SRobert Mustacchi * make derivatives, distribute, use and display any portion of the Covered
26*35786f68SRobert Mustacchi * Code in any form, with the right to sublicense such rights; and
27*35786f68SRobert Mustacchi *
28*35786f68SRobert Mustacchi * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29*35786f68SRobert Mustacchi * license (with the right to sublicense), under only those claims of Intel
30*35786f68SRobert Mustacchi * patents that are infringed by the Original Intel Code, to make, use, sell,
31*35786f68SRobert Mustacchi * offer to sell, and import the Covered Code and derivative works thereof
32*35786f68SRobert Mustacchi * solely to the minimum extent necessary to exercise the above copyright
33*35786f68SRobert Mustacchi * license, and in no event shall the patent license extend to any additions
34*35786f68SRobert Mustacchi * to or modifications of the Original Intel Code. No other license or right
35*35786f68SRobert Mustacchi * is granted directly or by implication, estoppel or otherwise;
36*35786f68SRobert Mustacchi *
37*35786f68SRobert Mustacchi * The above copyright and patent license is granted only if the following
38*35786f68SRobert Mustacchi * conditions are met:
39*35786f68SRobert Mustacchi *
40*35786f68SRobert Mustacchi * 3. Conditions
41*35786f68SRobert Mustacchi *
42*35786f68SRobert Mustacchi * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
44*35786f68SRobert Mustacchi * Code or modification with rights to further distribute source must include
45*35786f68SRobert Mustacchi * the above Copyright Notice, the above License, this list of Conditions,
46*35786f68SRobert Mustacchi * and the following Disclaimer and Export Compliance provision. In addition,
47*35786f68SRobert Mustacchi * Licensee must cause all Covered Code to which Licensee contributes to
48*35786f68SRobert Mustacchi * contain a file documenting the changes Licensee made to create that Covered
49*35786f68SRobert Mustacchi * Code and the date of any change. Licensee must include in that file the
50*35786f68SRobert Mustacchi * documentation of any changes made by any predecessor Licensee. Licensee
51*35786f68SRobert Mustacchi * must include a prominent statement that the modification is derived,
52*35786f68SRobert Mustacchi * directly or indirectly, from Original Intel Code.
53*35786f68SRobert Mustacchi *
54*35786f68SRobert Mustacchi * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
56*35786f68SRobert Mustacchi * Code or modification without rights to further distribute source must
57*35786f68SRobert Mustacchi * include the following Disclaimer and Export Compliance provision in the
58*35786f68SRobert Mustacchi * documentation and/or other materials provided with distribution. In
59*35786f68SRobert Mustacchi * addition, Licensee may not authorize further sublicense of source of any
60*35786f68SRobert Mustacchi * portion of the Covered Code, and must include terms to the effect that the
61*35786f68SRobert Mustacchi * license from Licensee to its licensee is limited to the intellectual
62*35786f68SRobert Mustacchi * property embodied in the software Licensee provides to its licensee, and
63*35786f68SRobert Mustacchi * not to intellectual property embodied in modifications its licensee may
64*35786f68SRobert Mustacchi * make.
65*35786f68SRobert Mustacchi *
66*35786f68SRobert Mustacchi * 3.3. Redistribution of Executable. Redistribution in executable form of any
67*35786f68SRobert Mustacchi * substantial portion of the Covered Code or modification must reproduce the
68*35786f68SRobert Mustacchi * above Copyright Notice, and the following Disclaimer and Export Compliance
69*35786f68SRobert Mustacchi * provision in the documentation and/or other materials provided with the
70*35786f68SRobert Mustacchi * distribution.
71*35786f68SRobert Mustacchi *
72*35786f68SRobert Mustacchi * 3.4. Intel retains all right, title, and interest in and to the Original
73*35786f68SRobert Mustacchi * Intel Code.
74*35786f68SRobert Mustacchi *
75*35786f68SRobert Mustacchi * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76*35786f68SRobert Mustacchi * Intel shall be used in advertising or otherwise to promote the sale, use or
77*35786f68SRobert Mustacchi * other dealings in products derived from or relating to the Covered Code
78*35786f68SRobert Mustacchi * without prior written authorization from Intel.
79*35786f68SRobert Mustacchi *
80*35786f68SRobert Mustacchi * 4. Disclaimer and Export Compliance
81*35786f68SRobert Mustacchi *
82*35786f68SRobert Mustacchi * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83*35786f68SRobert Mustacchi * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84*35786f68SRobert Mustacchi * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85*35786f68SRobert Mustacchi * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86*35786f68SRobert Mustacchi * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87*35786f68SRobert Mustacchi * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88*35786f68SRobert Mustacchi * PARTICULAR PURPOSE.
89*35786f68SRobert Mustacchi *
90*35786f68SRobert Mustacchi * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91*35786f68SRobert Mustacchi * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92*35786f68SRobert Mustacchi * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93*35786f68SRobert Mustacchi * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94*35786f68SRobert Mustacchi * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95*35786f68SRobert Mustacchi * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96*35786f68SRobert Mustacchi * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97*35786f68SRobert Mustacchi * LIMITED REMEDY.
98*35786f68SRobert Mustacchi *
99*35786f68SRobert Mustacchi * 4.3. Licensee shall not export, either directly or indirectly, any of this
100*35786f68SRobert Mustacchi * software or system incorporating such software without first obtaining any
101*35786f68SRobert Mustacchi * required license or other approval from the U. S. Department of Commerce or
102*35786f68SRobert Mustacchi * any other agency or department of the United States Government. In the
103*35786f68SRobert Mustacchi * event Licensee exports any such software from the United States or
104*35786f68SRobert Mustacchi * re-exports any such software from a foreign destination, Licensee shall
105*35786f68SRobert Mustacchi * ensure that the distribution and export/re-export of the software is in
106*35786f68SRobert Mustacchi * compliance with all laws, regulations, orders, or other restrictions of the
107*35786f68SRobert Mustacchi * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108*35786f68SRobert Mustacchi * any of its subsidiaries will export/re-export any technical data, process,
109*35786f68SRobert Mustacchi * software, or service, directly or indirectly, to any country for which the
110*35786f68SRobert Mustacchi * United States government or any agency thereof requires an export license,
111*35786f68SRobert Mustacchi * other governmental approval, or letter of assurance, without first obtaining
112*35786f68SRobert Mustacchi * such license, approval or letter.
113*35786f68SRobert Mustacchi *
114*35786f68SRobert Mustacchi *****************************************************************************
115*35786f68SRobert Mustacchi *
116*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
117*35786f68SRobert Mustacchi * following license:
118*35786f68SRobert Mustacchi *
119bc36eafdSMike Gerdts * Redistribution and use in source and binary forms, with or without
120bc36eafdSMike Gerdts * modification, are permitted provided that the following conditions
121bc36eafdSMike Gerdts * are met:
122bc36eafdSMike Gerdts * 1. Redistributions of source code must retain the above copyright
123bc36eafdSMike Gerdts * notice, this list of conditions, and the following disclaimer,
124bc36eafdSMike Gerdts * without modification.
125bc36eafdSMike Gerdts * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126bc36eafdSMike Gerdts * substantially similar to the "NO WARRANTY" disclaimer below
127bc36eafdSMike Gerdts * ("Disclaimer") and any redistribution must be conditioned upon
128bc36eafdSMike Gerdts * including a substantially similar Disclaimer requirement for further
129bc36eafdSMike Gerdts * binary redistribution.
130bc36eafdSMike Gerdts * 3. Neither the names of the above-listed copyright holders nor the names
131bc36eafdSMike Gerdts * of any contributors may be used to endorse or promote products derived
132bc36eafdSMike Gerdts * from this software without specific prior written permission.
133bc36eafdSMike Gerdts *
134*35786f68SRobert Mustacchi * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135*35786f68SRobert Mustacchi * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137*35786f68SRobert Mustacchi * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138*35786f68SRobert Mustacchi * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139*35786f68SRobert Mustacchi * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140*35786f68SRobert Mustacchi * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141*35786f68SRobert Mustacchi * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142*35786f68SRobert Mustacchi * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143*35786f68SRobert Mustacchi * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144*35786f68SRobert Mustacchi * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145*35786f68SRobert Mustacchi *
146*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
147bc36eafdSMike Gerdts * GNU General Public License ("GPL") version 2 as published by the Free
148bc36eafdSMike Gerdts * Software Foundation.
149bc36eafdSMike Gerdts *
150*35786f68SRobert Mustacchi *****************************************************************************/
151bc36eafdSMike Gerdts
152bc36eafdSMike Gerdts #define EXPORT_ACPI_INTERFACES
153bc36eafdSMike Gerdts
154bc36eafdSMike Gerdts #include "acpi.h"
155bc36eafdSMike Gerdts #include "accommon.h"
156bc36eafdSMike Gerdts #include "actables.h"
157bc36eafdSMike Gerdts
158bc36eafdSMike Gerdts #define _COMPONENT ACPI_EVENTS
159bc36eafdSMike Gerdts ACPI_MODULE_NAME ("evxfevnt")
160bc36eafdSMike Gerdts
161bc36eafdSMike Gerdts
162bc36eafdSMike Gerdts #if (!ACPI_REDUCED_HARDWARE) /* Entire module */
163bc36eafdSMike Gerdts /*******************************************************************************
164bc36eafdSMike Gerdts *
165bc36eafdSMike Gerdts * FUNCTION: AcpiEnable
166bc36eafdSMike Gerdts *
167bc36eafdSMike Gerdts * PARAMETERS: None
168bc36eafdSMike Gerdts *
169bc36eafdSMike Gerdts * RETURN: Status
170bc36eafdSMike Gerdts *
171bc36eafdSMike Gerdts * DESCRIPTION: Transfers the system into ACPI mode.
172bc36eafdSMike Gerdts *
173bc36eafdSMike Gerdts ******************************************************************************/
174bc36eafdSMike Gerdts
175bc36eafdSMike Gerdts ACPI_STATUS
AcpiEnable(void)176bc36eafdSMike Gerdts AcpiEnable (
177bc36eafdSMike Gerdts void)
178bc36eafdSMike Gerdts {
179bc36eafdSMike Gerdts ACPI_STATUS Status = AE_OK;
180bc36eafdSMike Gerdts
181bc36eafdSMike Gerdts
182bc36eafdSMike Gerdts ACPI_FUNCTION_TRACE (AcpiEnable);
183bc36eafdSMike Gerdts
184bc36eafdSMike Gerdts
185bc36eafdSMike Gerdts /* ACPI tables must be present */
186bc36eafdSMike Gerdts
187bc36eafdSMike Gerdts if (AcpiGbl_FadtIndex == ACPI_INVALID_TABLE_INDEX)
188bc36eafdSMike Gerdts {
189bc36eafdSMike Gerdts return_ACPI_STATUS (AE_NO_ACPI_TABLES);
190bc36eafdSMike Gerdts }
191bc36eafdSMike Gerdts
192bc36eafdSMike Gerdts /* If the Hardware Reduced flag is set, machine is always in acpi mode */
193bc36eafdSMike Gerdts
194bc36eafdSMike Gerdts if (AcpiGbl_ReducedHardware)
195bc36eafdSMike Gerdts {
196bc36eafdSMike Gerdts return_ACPI_STATUS (AE_OK);
197bc36eafdSMike Gerdts }
198bc36eafdSMike Gerdts
199bc36eafdSMike Gerdts /* Check current mode */
200bc36eafdSMike Gerdts
201bc36eafdSMike Gerdts if (AcpiHwGetMode() == ACPI_SYS_MODE_ACPI)
202bc36eafdSMike Gerdts {
203bc36eafdSMike Gerdts ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
204bc36eafdSMike Gerdts "System is already in ACPI mode\n"));
205bc36eafdSMike Gerdts }
206bc36eafdSMike Gerdts else
207bc36eafdSMike Gerdts {
208bc36eafdSMike Gerdts /* Transition to ACPI mode */
209bc36eafdSMike Gerdts
210bc36eafdSMike Gerdts Status = AcpiHwSetMode (ACPI_SYS_MODE_ACPI);
211bc36eafdSMike Gerdts if (ACPI_FAILURE (Status))
212bc36eafdSMike Gerdts {
213bc36eafdSMike Gerdts ACPI_ERROR ((AE_INFO, "Could not transition to ACPI mode"));
214bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
215bc36eafdSMike Gerdts }
216bc36eafdSMike Gerdts
217bc36eafdSMike Gerdts ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
218bc36eafdSMike Gerdts "Transition to ACPI mode successful\n"));
219bc36eafdSMike Gerdts }
220bc36eafdSMike Gerdts
221bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
222bc36eafdSMike Gerdts }
223bc36eafdSMike Gerdts
ACPI_EXPORT_SYMBOL(AcpiEnable)224bc36eafdSMike Gerdts ACPI_EXPORT_SYMBOL (AcpiEnable)
225bc36eafdSMike Gerdts
226bc36eafdSMike Gerdts
227bc36eafdSMike Gerdts /*******************************************************************************
228bc36eafdSMike Gerdts *
229bc36eafdSMike Gerdts * FUNCTION: AcpiDisable
230bc36eafdSMike Gerdts *
231bc36eafdSMike Gerdts * PARAMETERS: None
232bc36eafdSMike Gerdts *
233bc36eafdSMike Gerdts * RETURN: Status
234bc36eafdSMike Gerdts *
235bc36eafdSMike Gerdts * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode.
236bc36eafdSMike Gerdts *
237bc36eafdSMike Gerdts ******************************************************************************/
238bc36eafdSMike Gerdts
239bc36eafdSMike Gerdts ACPI_STATUS
240bc36eafdSMike Gerdts AcpiDisable (
241bc36eafdSMike Gerdts void)
242bc36eafdSMike Gerdts {
243bc36eafdSMike Gerdts ACPI_STATUS Status = AE_OK;
244bc36eafdSMike Gerdts
245bc36eafdSMike Gerdts
246bc36eafdSMike Gerdts ACPI_FUNCTION_TRACE (AcpiDisable);
247bc36eafdSMike Gerdts
248bc36eafdSMike Gerdts
249bc36eafdSMike Gerdts /* If the Hardware Reduced flag is set, machine is always in acpi mode */
250bc36eafdSMike Gerdts
251bc36eafdSMike Gerdts if (AcpiGbl_ReducedHardware)
252bc36eafdSMike Gerdts {
253bc36eafdSMike Gerdts return_ACPI_STATUS (AE_OK);
254bc36eafdSMike Gerdts }
255bc36eafdSMike Gerdts
256bc36eafdSMike Gerdts if (AcpiHwGetMode() == ACPI_SYS_MODE_LEGACY)
257bc36eafdSMike Gerdts {
258bc36eafdSMike Gerdts ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
259bc36eafdSMike Gerdts "System is already in legacy (non-ACPI) mode\n"));
260bc36eafdSMike Gerdts }
261bc36eafdSMike Gerdts else
262bc36eafdSMike Gerdts {
263bc36eafdSMike Gerdts /* Transition to LEGACY mode */
264bc36eafdSMike Gerdts
265bc36eafdSMike Gerdts Status = AcpiHwSetMode (ACPI_SYS_MODE_LEGACY);
266bc36eafdSMike Gerdts
267bc36eafdSMike Gerdts if (ACPI_FAILURE (Status))
268bc36eafdSMike Gerdts {
269bc36eafdSMike Gerdts ACPI_ERROR ((AE_INFO,
270bc36eafdSMike Gerdts "Could not exit ACPI mode to legacy mode"));
271bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
272bc36eafdSMike Gerdts }
273bc36eafdSMike Gerdts
274bc36eafdSMike Gerdts ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
275bc36eafdSMike Gerdts "ACPI mode disabled\n"));
276bc36eafdSMike Gerdts }
277bc36eafdSMike Gerdts
278bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
279bc36eafdSMike Gerdts }
280bc36eafdSMike Gerdts
ACPI_EXPORT_SYMBOL(AcpiDisable)281bc36eafdSMike Gerdts ACPI_EXPORT_SYMBOL (AcpiDisable)
282bc36eafdSMike Gerdts
283bc36eafdSMike Gerdts
284bc36eafdSMike Gerdts /*******************************************************************************
285bc36eafdSMike Gerdts *
286bc36eafdSMike Gerdts * FUNCTION: AcpiEnableEvent
287bc36eafdSMike Gerdts *
288bc36eafdSMike Gerdts * PARAMETERS: Event - The fixed eventto be enabled
289bc36eafdSMike Gerdts * Flags - Reserved
290bc36eafdSMike Gerdts *
291bc36eafdSMike Gerdts * RETURN: Status
292bc36eafdSMike Gerdts *
293bc36eafdSMike Gerdts * DESCRIPTION: Enable an ACPI event (fixed)
294bc36eafdSMike Gerdts *
295bc36eafdSMike Gerdts ******************************************************************************/
296bc36eafdSMike Gerdts
297bc36eafdSMike Gerdts ACPI_STATUS
298bc36eafdSMike Gerdts AcpiEnableEvent (
299bc36eafdSMike Gerdts UINT32 Event,
300bc36eafdSMike Gerdts UINT32 Flags)
301bc36eafdSMike Gerdts {
302bc36eafdSMike Gerdts ACPI_STATUS Status = AE_OK;
303bc36eafdSMike Gerdts UINT32 Value;
304bc36eafdSMike Gerdts
305bc36eafdSMike Gerdts
306bc36eafdSMike Gerdts ACPI_FUNCTION_TRACE (AcpiEnableEvent);
307bc36eafdSMike Gerdts
308bc36eafdSMike Gerdts
309*35786f68SRobert Mustacchi /* If Hardware Reduced flag is set, there are no fixed events */
310*35786f68SRobert Mustacchi
311*35786f68SRobert Mustacchi if (AcpiGbl_ReducedHardware)
312*35786f68SRobert Mustacchi {
313*35786f68SRobert Mustacchi return_ACPI_STATUS (AE_OK);
314*35786f68SRobert Mustacchi }
315*35786f68SRobert Mustacchi
316bc36eafdSMike Gerdts /* Decode the Fixed Event */
317bc36eafdSMike Gerdts
318bc36eafdSMike Gerdts if (Event > ACPI_EVENT_MAX)
319bc36eafdSMike Gerdts {
320bc36eafdSMike Gerdts return_ACPI_STATUS (AE_BAD_PARAMETER);
321bc36eafdSMike Gerdts }
322bc36eafdSMike Gerdts
323bc36eafdSMike Gerdts /*
324bc36eafdSMike Gerdts * Enable the requested fixed event (by writing a one to the enable
325bc36eafdSMike Gerdts * register bit)
326bc36eafdSMike Gerdts */
327bc36eafdSMike Gerdts Status = AcpiWriteBitRegister (
328bc36eafdSMike Gerdts AcpiGbl_FixedEventInfo[Event].EnableRegisterId,
329bc36eafdSMike Gerdts ACPI_ENABLE_EVENT);
330bc36eafdSMike Gerdts if (ACPI_FAILURE (Status))
331bc36eafdSMike Gerdts {
332bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
333bc36eafdSMike Gerdts }
334bc36eafdSMike Gerdts
335bc36eafdSMike Gerdts /* Make sure that the hardware responded */
336bc36eafdSMike Gerdts
337bc36eafdSMike Gerdts Status = AcpiReadBitRegister (
338bc36eafdSMike Gerdts AcpiGbl_FixedEventInfo[Event].EnableRegisterId, &Value);
339bc36eafdSMike Gerdts if (ACPI_FAILURE (Status))
340bc36eafdSMike Gerdts {
341bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
342bc36eafdSMike Gerdts }
343bc36eafdSMike Gerdts
344bc36eafdSMike Gerdts if (Value != 1)
345bc36eafdSMike Gerdts {
346bc36eafdSMike Gerdts ACPI_ERROR ((AE_INFO,
347bc36eafdSMike Gerdts "Could not enable %s event", AcpiUtGetEventName (Event)));
348bc36eafdSMike Gerdts return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE);
349bc36eafdSMike Gerdts }
350bc36eafdSMike Gerdts
351bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
352bc36eafdSMike Gerdts }
353bc36eafdSMike Gerdts
ACPI_EXPORT_SYMBOL(AcpiEnableEvent)354bc36eafdSMike Gerdts ACPI_EXPORT_SYMBOL (AcpiEnableEvent)
355bc36eafdSMike Gerdts
356bc36eafdSMike Gerdts
357bc36eafdSMike Gerdts /*******************************************************************************
358bc36eafdSMike Gerdts *
359bc36eafdSMike Gerdts * FUNCTION: AcpiDisableEvent
360bc36eafdSMike Gerdts *
361bc36eafdSMike Gerdts * PARAMETERS: Event - The fixed event to be disabled
362bc36eafdSMike Gerdts * Flags - Reserved
363bc36eafdSMike Gerdts *
364bc36eafdSMike Gerdts * RETURN: Status
365bc36eafdSMike Gerdts *
366bc36eafdSMike Gerdts * DESCRIPTION: Disable an ACPI event (fixed)
367bc36eafdSMike Gerdts *
368bc36eafdSMike Gerdts ******************************************************************************/
369bc36eafdSMike Gerdts
370bc36eafdSMike Gerdts ACPI_STATUS
371bc36eafdSMike Gerdts AcpiDisableEvent (
372bc36eafdSMike Gerdts UINT32 Event,
373bc36eafdSMike Gerdts UINT32 Flags)
374bc36eafdSMike Gerdts {
375bc36eafdSMike Gerdts ACPI_STATUS Status = AE_OK;
376bc36eafdSMike Gerdts UINT32 Value;
377bc36eafdSMike Gerdts
378bc36eafdSMike Gerdts
379bc36eafdSMike Gerdts ACPI_FUNCTION_TRACE (AcpiDisableEvent);
380bc36eafdSMike Gerdts
381bc36eafdSMike Gerdts
382*35786f68SRobert Mustacchi /* If Hardware Reduced flag is set, there are no fixed events */
383*35786f68SRobert Mustacchi
384*35786f68SRobert Mustacchi if (AcpiGbl_ReducedHardware)
385*35786f68SRobert Mustacchi {
386*35786f68SRobert Mustacchi return_ACPI_STATUS (AE_OK);
387*35786f68SRobert Mustacchi }
388*35786f68SRobert Mustacchi
389bc36eafdSMike Gerdts /* Decode the Fixed Event */
390bc36eafdSMike Gerdts
391bc36eafdSMike Gerdts if (Event > ACPI_EVENT_MAX)
392bc36eafdSMike Gerdts {
393bc36eafdSMike Gerdts return_ACPI_STATUS (AE_BAD_PARAMETER);
394bc36eafdSMike Gerdts }
395bc36eafdSMike Gerdts
396bc36eafdSMike Gerdts /*
397bc36eafdSMike Gerdts * Disable the requested fixed event (by writing a zero to the enable
398bc36eafdSMike Gerdts * register bit)
399bc36eafdSMike Gerdts */
400bc36eafdSMike Gerdts Status = AcpiWriteBitRegister (
401bc36eafdSMike Gerdts AcpiGbl_FixedEventInfo[Event].EnableRegisterId,
402bc36eafdSMike Gerdts ACPI_DISABLE_EVENT);
403bc36eafdSMike Gerdts if (ACPI_FAILURE (Status))
404bc36eafdSMike Gerdts {
405bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
406bc36eafdSMike Gerdts }
407bc36eafdSMike Gerdts
408bc36eafdSMike Gerdts Status = AcpiReadBitRegister (
409bc36eafdSMike Gerdts AcpiGbl_FixedEventInfo[Event].EnableRegisterId, &Value);
410bc36eafdSMike Gerdts if (ACPI_FAILURE (Status))
411bc36eafdSMike Gerdts {
412bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
413bc36eafdSMike Gerdts }
414bc36eafdSMike Gerdts
415bc36eafdSMike Gerdts if (Value != 0)
416bc36eafdSMike Gerdts {
417bc36eafdSMike Gerdts ACPI_ERROR ((AE_INFO,
418bc36eafdSMike Gerdts "Could not disable %s events", AcpiUtGetEventName (Event)));
419bc36eafdSMike Gerdts return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE);
420bc36eafdSMike Gerdts }
421bc36eafdSMike Gerdts
422bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
423bc36eafdSMike Gerdts }
424bc36eafdSMike Gerdts
ACPI_EXPORT_SYMBOL(AcpiDisableEvent)425bc36eafdSMike Gerdts ACPI_EXPORT_SYMBOL (AcpiDisableEvent)
426bc36eafdSMike Gerdts
427bc36eafdSMike Gerdts
428bc36eafdSMike Gerdts /*******************************************************************************
429bc36eafdSMike Gerdts *
430bc36eafdSMike Gerdts * FUNCTION: AcpiClearEvent
431bc36eafdSMike Gerdts *
432bc36eafdSMike Gerdts * PARAMETERS: Event - The fixed event to be cleared
433bc36eafdSMike Gerdts *
434bc36eafdSMike Gerdts * RETURN: Status
435bc36eafdSMike Gerdts *
436bc36eafdSMike Gerdts * DESCRIPTION: Clear an ACPI event (fixed)
437bc36eafdSMike Gerdts *
438bc36eafdSMike Gerdts ******************************************************************************/
439bc36eafdSMike Gerdts
440bc36eafdSMike Gerdts ACPI_STATUS
441bc36eafdSMike Gerdts AcpiClearEvent (
442bc36eafdSMike Gerdts UINT32 Event)
443bc36eafdSMike Gerdts {
444bc36eafdSMike Gerdts ACPI_STATUS Status = AE_OK;
445bc36eafdSMike Gerdts
446bc36eafdSMike Gerdts
447bc36eafdSMike Gerdts ACPI_FUNCTION_TRACE (AcpiClearEvent);
448bc36eafdSMike Gerdts
449bc36eafdSMike Gerdts
450*35786f68SRobert Mustacchi /* If Hardware Reduced flag is set, there are no fixed events */
451*35786f68SRobert Mustacchi
452*35786f68SRobert Mustacchi if (AcpiGbl_ReducedHardware)
453*35786f68SRobert Mustacchi {
454*35786f68SRobert Mustacchi return_ACPI_STATUS (AE_OK);
455*35786f68SRobert Mustacchi }
456*35786f68SRobert Mustacchi
457bc36eafdSMike Gerdts /* Decode the Fixed Event */
458bc36eafdSMike Gerdts
459bc36eafdSMike Gerdts if (Event > ACPI_EVENT_MAX)
460bc36eafdSMike Gerdts {
461bc36eafdSMike Gerdts return_ACPI_STATUS (AE_BAD_PARAMETER);
462bc36eafdSMike Gerdts }
463bc36eafdSMike Gerdts
464bc36eafdSMike Gerdts /*
465bc36eafdSMike Gerdts * Clear the requested fixed event (By writing a one to the status
466bc36eafdSMike Gerdts * register bit)
467bc36eafdSMike Gerdts */
468bc36eafdSMike Gerdts Status = AcpiWriteBitRegister (
469bc36eafdSMike Gerdts AcpiGbl_FixedEventInfo[Event].StatusRegisterId,
470bc36eafdSMike Gerdts ACPI_CLEAR_STATUS);
471bc36eafdSMike Gerdts
472bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
473bc36eafdSMike Gerdts }
474bc36eafdSMike Gerdts
ACPI_EXPORT_SYMBOL(AcpiClearEvent)475bc36eafdSMike Gerdts ACPI_EXPORT_SYMBOL (AcpiClearEvent)
476bc36eafdSMike Gerdts
477bc36eafdSMike Gerdts
478bc36eafdSMike Gerdts /*******************************************************************************
479bc36eafdSMike Gerdts *
480bc36eafdSMike Gerdts * FUNCTION: AcpiGetEventStatus
481bc36eafdSMike Gerdts *
482bc36eafdSMike Gerdts * PARAMETERS: Event - The fixed event
483bc36eafdSMike Gerdts * EventStatus - Where the current status of the event will
484bc36eafdSMike Gerdts * be returned
485bc36eafdSMike Gerdts *
486bc36eafdSMike Gerdts * RETURN: Status
487bc36eafdSMike Gerdts *
488bc36eafdSMike Gerdts * DESCRIPTION: Obtains and returns the current status of the event
489bc36eafdSMike Gerdts *
490bc36eafdSMike Gerdts ******************************************************************************/
491bc36eafdSMike Gerdts
492bc36eafdSMike Gerdts ACPI_STATUS
493bc36eafdSMike Gerdts AcpiGetEventStatus (
494bc36eafdSMike Gerdts UINT32 Event,
495bc36eafdSMike Gerdts ACPI_EVENT_STATUS *EventStatus)
496bc36eafdSMike Gerdts {
497bc36eafdSMike Gerdts ACPI_STATUS Status;
498bc36eafdSMike Gerdts ACPI_EVENT_STATUS LocalEventStatus = 0;
499bc36eafdSMike Gerdts UINT32 InByte;
500bc36eafdSMike Gerdts
501bc36eafdSMike Gerdts
502bc36eafdSMike Gerdts ACPI_FUNCTION_TRACE (AcpiGetEventStatus);
503bc36eafdSMike Gerdts
504bc36eafdSMike Gerdts
505bc36eafdSMike Gerdts if (!EventStatus)
506bc36eafdSMike Gerdts {
507bc36eafdSMike Gerdts return_ACPI_STATUS (AE_BAD_PARAMETER);
508bc36eafdSMike Gerdts }
509bc36eafdSMike Gerdts
510bc36eafdSMike Gerdts /* Decode the Fixed Event */
511bc36eafdSMike Gerdts
512bc36eafdSMike Gerdts if (Event > ACPI_EVENT_MAX)
513bc36eafdSMike Gerdts {
514bc36eafdSMike Gerdts return_ACPI_STATUS (AE_BAD_PARAMETER);
515bc36eafdSMike Gerdts }
516bc36eafdSMike Gerdts
517bc36eafdSMike Gerdts /* Fixed event currently can be dispatched? */
518bc36eafdSMike Gerdts
519bc36eafdSMike Gerdts if (AcpiGbl_FixedEventHandlers[Event].Handler)
520bc36eafdSMike Gerdts {
521bc36eafdSMike Gerdts LocalEventStatus |= ACPI_EVENT_FLAG_HAS_HANDLER;
522bc36eafdSMike Gerdts }
523bc36eafdSMike Gerdts
524bc36eafdSMike Gerdts /* Fixed event currently enabled? */
525bc36eafdSMike Gerdts
526bc36eafdSMike Gerdts Status = AcpiReadBitRegister (
527bc36eafdSMike Gerdts AcpiGbl_FixedEventInfo[Event].EnableRegisterId, &InByte);
528bc36eafdSMike Gerdts if (ACPI_FAILURE (Status))
529bc36eafdSMike Gerdts {
530bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
531bc36eafdSMike Gerdts }
532bc36eafdSMike Gerdts
533bc36eafdSMike Gerdts if (InByte)
534bc36eafdSMike Gerdts {
535bc36eafdSMike Gerdts LocalEventStatus |=
536bc36eafdSMike Gerdts (ACPI_EVENT_FLAG_ENABLED | ACPI_EVENT_FLAG_ENABLE_SET);
537bc36eafdSMike Gerdts }
538bc36eafdSMike Gerdts
539bc36eafdSMike Gerdts /* Fixed event currently active? */
540bc36eafdSMike Gerdts
541bc36eafdSMike Gerdts Status = AcpiReadBitRegister (
542bc36eafdSMike Gerdts AcpiGbl_FixedEventInfo[Event].StatusRegisterId, &InByte);
543bc36eafdSMike Gerdts if (ACPI_FAILURE (Status))
544bc36eafdSMike Gerdts {
545bc36eafdSMike Gerdts return_ACPI_STATUS (Status);
546bc36eafdSMike Gerdts }
547bc36eafdSMike Gerdts
548bc36eafdSMike Gerdts if (InByte)
549bc36eafdSMike Gerdts {
550bc36eafdSMike Gerdts LocalEventStatus |= ACPI_EVENT_FLAG_STATUS_SET;
551bc36eafdSMike Gerdts }
552bc36eafdSMike Gerdts
553bc36eafdSMike Gerdts (*EventStatus) = LocalEventStatus;
554bc36eafdSMike Gerdts return_ACPI_STATUS (AE_OK);
555bc36eafdSMike Gerdts }
556bc36eafdSMike Gerdts
557bc36eafdSMike Gerdts ACPI_EXPORT_SYMBOL (AcpiGetEventStatus)
558bc36eafdSMike Gerdts
559bc36eafdSMike Gerdts #endif /* !ACPI_REDUCED_HARDWARE */
560