Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
Bob Moore | a8357b0 | 2010-01-22 19:07:36 +0800 | [diff] [blame] | 8 | * Copyright (C) 2000 - 2010, Intel Corp. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions, and the following disclaimer, |
| 16 | * without modification. |
| 17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 18 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 19 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 20 | * including a substantially similar Disclaimer requirement for further |
| 21 | * binary redistribution. |
| 22 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 23 | * of any contributors may be used to endorse or promote products derived |
| 24 | * from this software without specific prior written permission. |
| 25 | * |
| 26 | * Alternatively, this software may be distributed under the terms of the |
| 27 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 28 | * Software Foundation. |
| 29 | * |
| 30 | * NO WARRANTY |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 41 | * POSSIBILITY OF SUCH DAMAGES. |
| 42 | */ |
| 43 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <acpi/acpi.h> |
Len Brown | e2f7a77 | 2009-01-09 00:30:03 -0500 | [diff] [blame] | 45 | #include "accommon.h" |
| 46 | #include "acevents.h" |
| 47 | #include "acnamesp.h" |
| 48 | #include "actables.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
| 50 | #define _COMPONENT ACPI_EVENTS |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 51 | ACPI_MODULE_NAME("evxfevnt") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
Bob Moore | e97d6bf | 2008-12-30 09:45:17 +0800 | [diff] [blame] | 53 | /* Local prototypes */ |
Bob Moore | e4c1ebf | 2009-04-22 13:02:06 +0800 | [diff] [blame] | 54 | static acpi_status |
Bob Moore | e97d6bf | 2008-12-30 09:45:17 +0800 | [diff] [blame] | 55 | acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, |
| 56 | struct acpi_gpe_block_info *gpe_block, void *context); |
| 57 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | /******************************************************************************* |
| 59 | * |
| 60 | * FUNCTION: acpi_enable |
| 61 | * |
| 62 | * PARAMETERS: None |
| 63 | * |
| 64 | * RETURN: Status |
| 65 | * |
| 66 | * DESCRIPTION: Transfers the system into ACPI mode. |
| 67 | * |
| 68 | ******************************************************************************/ |
Bob Moore | e97d6bf | 2008-12-30 09:45:17 +0800 | [diff] [blame] | 69 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 70 | acpi_status acpi_enable(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 72 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 74 | ACPI_FUNCTION_TRACE(acpi_enable); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
Bob Moore | c857303 | 2007-02-02 19:48:23 +0300 | [diff] [blame] | 76 | /* ACPI tables must be present */ |
| 77 | |
| 78 | if (!acpi_tb_tables_loaded()) { |
| 79 | return_ACPI_STATUS(AE_NO_ACPI_TABLES); |
| 80 | } |
| 81 | |
| 82 | /* Check current mode */ |
| 83 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 85 | ACPI_DEBUG_PRINT((ACPI_DB_INIT, |
| 86 | "System is already in ACPI mode\n")); |
| 87 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | /* Transition to ACPI mode */ |
| 89 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 90 | status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI); |
| 91 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 92 | ACPI_ERROR((AE_INFO, |
| 93 | "Could not transition to ACPI mode")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 94 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | } |
| 96 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 97 | ACPI_DEBUG_PRINT((ACPI_DB_INIT, |
| 98 | "Transition to ACPI mode successful\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | } |
| 100 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 101 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | } |
| 103 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 104 | ACPI_EXPORT_SYMBOL(acpi_enable) |
| 105 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | /******************************************************************************* |
| 107 | * |
| 108 | * FUNCTION: acpi_disable |
| 109 | * |
| 110 | * PARAMETERS: None |
| 111 | * |
| 112 | * RETURN: Status |
| 113 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 114 | * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | * |
| 116 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 117 | acpi_status acpi_disable(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 119 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 121 | ACPI_FUNCTION_TRACE(acpi_disable); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | if (acpi_hw_get_mode() == ACPI_SYS_MODE_LEGACY) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 124 | ACPI_DEBUG_PRINT((ACPI_DB_INIT, |
| 125 | "System is already in legacy (non-ACPI) mode\n")); |
| 126 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | /* Transition to LEGACY mode */ |
| 128 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 129 | status = acpi_hw_set_mode(ACPI_SYS_MODE_LEGACY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 131 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 132 | ACPI_ERROR((AE_INFO, |
| 133 | "Could not exit ACPI mode to legacy mode")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 134 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | } |
| 136 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 137 | ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI mode disabled\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | } |
| 139 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 140 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | } |
| 142 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 143 | ACPI_EXPORT_SYMBOL(acpi_disable) |
| 144 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | /******************************************************************************* |
| 146 | * |
| 147 | * FUNCTION: acpi_enable_event |
| 148 | * |
| 149 | * PARAMETERS: Event - The fixed eventto be enabled |
| 150 | * Flags - Reserved |
| 151 | * |
| 152 | * RETURN: Status |
| 153 | * |
| 154 | * DESCRIPTION: Enable an ACPI event (fixed) |
| 155 | * |
| 156 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 157 | acpi_status acpi_enable_event(u32 event, u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 159 | acpi_status status = AE_OK; |
| 160 | u32 value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 162 | ACPI_FUNCTION_TRACE(acpi_enable_event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | |
| 164 | /* Decode the Fixed Event */ |
| 165 | |
| 166 | if (event > ACPI_EVENT_MAX) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 167 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | } |
| 169 | |
| 170 | /* |
Bob Moore | 9f15fc6 | 2008-11-12 16:01:56 +0800 | [diff] [blame] | 171 | * Enable the requested fixed event (by writing a one to the enable |
| 172 | * register bit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 174 | status = |
Bob Moore | 50ffba1 | 2009-02-23 15:02:07 +0800 | [diff] [blame] | 175 | acpi_write_bit_register(acpi_gbl_fixed_event_info[event]. |
Bob Moore | 768aaaf | 2009-03-06 09:49:25 +0800 | [diff] [blame] | 176 | enable_register_id, ACPI_ENABLE_EVENT); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 177 | if (ACPI_FAILURE(status)) { |
| 178 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | } |
| 180 | |
| 181 | /* Make sure that the hardware responded */ |
| 182 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 183 | status = |
Bob Moore | 50ffba1 | 2009-02-23 15:02:07 +0800 | [diff] [blame] | 184 | acpi_read_bit_register(acpi_gbl_fixed_event_info[event]. |
| 185 | enable_register_id, &value); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 186 | if (ACPI_FAILURE(status)) { |
| 187 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | if (value != 1) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 191 | ACPI_ERROR((AE_INFO, |
| 192 | "Could not enable %s event", |
| 193 | acpi_ut_get_event_name(event))); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 194 | return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | } |
| 196 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 197 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 200 | ACPI_EXPORT_SYMBOL(acpi_enable_event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
| 202 | /******************************************************************************* |
| 203 | * |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 204 | * FUNCTION: acpi_set_gpe |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | * |
| 206 | * PARAMETERS: gpe_device - Parent GPE Device |
| 207 | * gpe_number - GPE level within the GPE block |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 208 | * action - Enable or disable |
| 209 | * Called from ISR or not |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | * |
| 211 | * RETURN: Status |
| 212 | * |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 213 | * DESCRIPTION: Enable or disable an ACPI event (general purpose) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | * |
| 215 | ******************************************************************************/ |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 216 | acpi_status acpi_set_gpe(acpi_handle gpe_device, u32 gpe_number, u8 action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 218 | acpi_status status = AE_OK; |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 219 | acpi_cpu_flags flags; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 220 | struct acpi_gpe_event_info *gpe_event_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 222 | ACPI_FUNCTION_TRACE(acpi_set_gpe); |
| 223 | |
| 224 | flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | |
| 226 | /* Ensure that we have a valid GPE number */ |
| 227 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 228 | gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | if (!gpe_event_info) { |
| 230 | status = AE_BAD_PARAMETER; |
| 231 | goto unlock_and_exit; |
| 232 | } |
| 233 | |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 234 | /* Perform the action */ |
| 235 | |
| 236 | switch (action) { |
| 237 | case ACPI_GPE_ENABLE: |
Rafael J. Wysocki | cbbc0de | 2010-02-24 00:52:08 +0100 | [diff] [blame] | 238 | status = acpi_ev_enable_gpe(gpe_event_info); |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 239 | break; |
| 240 | |
| 241 | case ACPI_GPE_DISABLE: |
| 242 | status = acpi_ev_disable_gpe(gpe_event_info); |
| 243 | break; |
| 244 | |
| 245 | default: |
| 246 | ACPI_ERROR((AE_INFO, "Invalid action\n")); |
| 247 | status = AE_BAD_PARAMETER; |
| 248 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | } |
| 250 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 251 | unlock_and_exit: |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 252 | acpi_os_release_lock(acpi_gbl_gpe_lock, flags); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 253 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 256 | ACPI_EXPORT_SYMBOL(acpi_set_gpe) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | |
| 258 | /******************************************************************************* |
| 259 | * |
| 260 | * FUNCTION: acpi_enable_gpe |
| 261 | * |
| 262 | * PARAMETERS: gpe_device - Parent GPE Device |
| 263 | * gpe_number - GPE level within the GPE block |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 264 | * type - Purpose the GPE will be used for |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | * |
| 266 | * RETURN: Status |
| 267 | * |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 268 | * DESCRIPTION: Take a reference to a GPE and enable it if necessary |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | * |
| 270 | ******************************************************************************/ |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 271 | acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 273 | acpi_status status = AE_OK; |
Alexey Starikovskiy | 0b7084a | 2008-10-25 21:48:46 +0400 | [diff] [blame] | 274 | acpi_cpu_flags flags; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 275 | struct acpi_gpe_event_info *gpe_event_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 277 | ACPI_FUNCTION_TRACE(acpi_enable_gpe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | |
Rafael J. Wysocki | cbbc0de | 2010-02-24 00:52:08 +0100 | [diff] [blame] | 279 | if (type & ~ACPI_GPE_TYPE_WAKE_RUN) |
| 280 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
| 281 | |
Alexey Starikovskiy | 0b7084a | 2008-10-25 21:48:46 +0400 | [diff] [blame] | 282 | flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | |
| 284 | /* Ensure that we have a valid GPE number */ |
| 285 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 286 | gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | if (!gpe_event_info) { |
| 288 | status = AE_BAD_PARAMETER; |
| 289 | goto unlock_and_exit; |
| 290 | } |
| 291 | |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 292 | if (type & ACPI_GPE_TYPE_RUNTIME) { |
Rafael J. Wysocki | cbbc0de | 2010-02-24 00:52:08 +0100 | [diff] [blame] | 293 | if (++gpe_event_info->runtime_count == 1) { |
| 294 | status = acpi_ev_enable_gpe(gpe_event_info); |
| 295 | if (ACPI_FAILURE(status)) |
| 296 | gpe_event_info->runtime_count--; |
| 297 | } |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 298 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 300 | if (type & ACPI_GPE_TYPE_WAKE) { |
| 301 | if (!(gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) { |
| 302 | status = AE_BAD_PARAMETER; |
| 303 | goto unlock_and_exit; |
| 304 | } |
| 305 | |
| 306 | /* |
| 307 | * Wake-up GPEs are only enabled right prior to putting the |
| 308 | * system into a sleep state. |
| 309 | */ |
| 310 | if (++gpe_event_info->wakeup_count == 1) |
| 311 | acpi_ev_update_gpe_enable_masks(gpe_event_info); |
| 312 | } |
| 313 | |
| 314 | unlock_and_exit: |
Alexey Starikovskiy | 0b7084a | 2008-10-25 21:48:46 +0400 | [diff] [blame] | 315 | acpi_os_release_lock(acpi_gbl_gpe_lock, flags); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 316 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | } |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 318 | ACPI_EXPORT_SYMBOL(acpi_enable_gpe) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | |
| 320 | /******************************************************************************* |
| 321 | * |
| 322 | * FUNCTION: acpi_disable_gpe |
| 323 | * |
| 324 | * PARAMETERS: gpe_device - Parent GPE Device |
| 325 | * gpe_number - GPE level within the GPE block |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 326 | * type - Purpose the GPE won't be used for any more |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | * |
| 328 | * RETURN: Status |
| 329 | * |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 330 | * DESCRIPTION: Release a reference to a GPE and disable it if necessary |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | * |
| 332 | ******************************************************************************/ |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 333 | acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 335 | acpi_status status = AE_OK; |
Alexey Starikovskiy | 0b7084a | 2008-10-25 21:48:46 +0400 | [diff] [blame] | 336 | acpi_cpu_flags flags; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 337 | struct acpi_gpe_event_info *gpe_event_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 339 | ACPI_FUNCTION_TRACE(acpi_disable_gpe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | |
Rafael J. Wysocki | cbbc0de | 2010-02-24 00:52:08 +0100 | [diff] [blame] | 341 | if (type & ~ACPI_GPE_TYPE_WAKE_RUN) |
| 342 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
| 343 | |
Alexey Starikovskiy | 0b7084a | 2008-10-25 21:48:46 +0400 | [diff] [blame] | 344 | flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | /* Ensure that we have a valid GPE number */ |
| 346 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 347 | gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | if (!gpe_event_info) { |
| 349 | status = AE_BAD_PARAMETER; |
| 350 | goto unlock_and_exit; |
| 351 | } |
| 352 | |
Rafael J. Wysocki | cbbc0de | 2010-02-24 00:52:08 +0100 | [diff] [blame] | 353 | if ((type & ACPI_GPE_TYPE_RUNTIME) && gpe_event_info->runtime_count) { |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 354 | if (--gpe_event_info->runtime_count == 0) |
Rafael J. Wysocki | cbbc0de | 2010-02-24 00:52:08 +0100 | [diff] [blame] | 355 | status = acpi_ev_disable_gpe(gpe_event_info); |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 356 | } |
| 357 | |
Rafael J. Wysocki | cbbc0de | 2010-02-24 00:52:08 +0100 | [diff] [blame] | 358 | if ((type & ACPI_GPE_TYPE_WAKE) && gpe_event_info->wakeup_count) { |
Rafael J. Wysocki | 9630bdd | 2010-02-17 23:41:07 +0100 | [diff] [blame] | 359 | /* |
| 360 | * Wake-up GPEs are not enabled after leaving system sleep |
| 361 | * states, so we don't need to disable them here. |
| 362 | */ |
| 363 | if (--gpe_event_info->wakeup_count == 0) |
| 364 | acpi_ev_update_gpe_enable_masks(gpe_event_info); |
| 365 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | |
Alexey Starikovskiy | 0b7084a | 2008-10-25 21:48:46 +0400 | [diff] [blame] | 367 | unlock_and_exit: |
| 368 | acpi_os_release_lock(acpi_gbl_gpe_lock, flags); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 369 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | } |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 371 | ACPI_EXPORT_SYMBOL(acpi_disable_gpe) |
| 372 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | /******************************************************************************* |
| 374 | * |
| 375 | * FUNCTION: acpi_disable_event |
| 376 | * |
| 377 | * PARAMETERS: Event - The fixed eventto be enabled |
| 378 | * Flags - Reserved |
| 379 | * |
| 380 | * RETURN: Status |
| 381 | * |
| 382 | * DESCRIPTION: Disable an ACPI event (fixed) |
| 383 | * |
| 384 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 385 | acpi_status acpi_disable_event(u32 event, u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 387 | acpi_status status = AE_OK; |
| 388 | u32 value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 390 | ACPI_FUNCTION_TRACE(acpi_disable_event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | |
| 392 | /* Decode the Fixed Event */ |
| 393 | |
| 394 | if (event > ACPI_EVENT_MAX) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 395 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | } |
| 397 | |
| 398 | /* |
Bob Moore | 9f15fc6 | 2008-11-12 16:01:56 +0800 | [diff] [blame] | 399 | * Disable the requested fixed event (by writing a zero to the enable |
| 400 | * register bit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 402 | status = |
Bob Moore | 50ffba1 | 2009-02-23 15:02:07 +0800 | [diff] [blame] | 403 | acpi_write_bit_register(acpi_gbl_fixed_event_info[event]. |
Bob Moore | 768aaaf | 2009-03-06 09:49:25 +0800 | [diff] [blame] | 404 | enable_register_id, ACPI_DISABLE_EVENT); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 405 | if (ACPI_FAILURE(status)) { |
| 406 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | } |
| 408 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 409 | status = |
Bob Moore | 50ffba1 | 2009-02-23 15:02:07 +0800 | [diff] [blame] | 410 | acpi_read_bit_register(acpi_gbl_fixed_event_info[event]. |
| 411 | enable_register_id, &value); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 412 | if (ACPI_FAILURE(status)) { |
| 413 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | } |
| 415 | |
| 416 | if (value != 0) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 417 | ACPI_ERROR((AE_INFO, |
| 418 | "Could not disable %s events", |
| 419 | acpi_ut_get_event_name(event))); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 420 | return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | } |
| 422 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 423 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 426 | ACPI_EXPORT_SYMBOL(acpi_disable_event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | |
| 428 | /******************************************************************************* |
| 429 | * |
| 430 | * FUNCTION: acpi_clear_event |
| 431 | * |
| 432 | * PARAMETERS: Event - The fixed event to be cleared |
| 433 | * |
| 434 | * RETURN: Status |
| 435 | * |
| 436 | * DESCRIPTION: Clear an ACPI event (fixed) |
| 437 | * |
| 438 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 439 | acpi_status acpi_clear_event(u32 event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 441 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 443 | ACPI_FUNCTION_TRACE(acpi_clear_event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | |
| 445 | /* Decode the Fixed Event */ |
| 446 | |
| 447 | if (event > ACPI_EVENT_MAX) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 448 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | } |
| 450 | |
| 451 | /* |
Bob Moore | 9f15fc6 | 2008-11-12 16:01:56 +0800 | [diff] [blame] | 452 | * Clear the requested fixed event (By writing a one to the status |
| 453 | * register bit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 455 | status = |
Bob Moore | 50ffba1 | 2009-02-23 15:02:07 +0800 | [diff] [blame] | 456 | acpi_write_bit_register(acpi_gbl_fixed_event_info[event]. |
Bob Moore | 768aaaf | 2009-03-06 09:49:25 +0800 | [diff] [blame] | 457 | status_register_id, ACPI_CLEAR_STATUS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 459 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 462 | ACPI_EXPORT_SYMBOL(acpi_clear_event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | |
| 464 | /******************************************************************************* |
| 465 | * |
| 466 | * FUNCTION: acpi_clear_gpe |
| 467 | * |
| 468 | * PARAMETERS: gpe_device - Parent GPE Device |
| 469 | * gpe_number - GPE level within the GPE block |
| 470 | * Flags - Called from an ISR or not |
| 471 | * |
| 472 | * RETURN: Status |
| 473 | * |
| 474 | * DESCRIPTION: Clear an ACPI event (general purpose) |
| 475 | * |
| 476 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 477 | acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 479 | acpi_status status = AE_OK; |
| 480 | struct acpi_gpe_event_info *gpe_event_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 482 | ACPI_FUNCTION_TRACE(acpi_clear_gpe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | |
| 484 | /* Use semaphore lock if not executing at interrupt level */ |
| 485 | |
| 486 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 487 | status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); |
| 488 | if (ACPI_FAILURE(status)) { |
| 489 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | } |
| 491 | } |
| 492 | |
| 493 | /* Ensure that we have a valid GPE number */ |
| 494 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 495 | gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | if (!gpe_event_info) { |
| 497 | status = AE_BAD_PARAMETER; |
| 498 | goto unlock_and_exit; |
| 499 | } |
| 500 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 501 | status = acpi_hw_clear_gpe(gpe_event_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 503 | unlock_and_exit: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 505 | (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 507 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | } |
| 509 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 510 | ACPI_EXPORT_SYMBOL(acpi_clear_gpe) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | /******************************************************************************* |
| 512 | * |
| 513 | * FUNCTION: acpi_get_event_status |
| 514 | * |
| 515 | * PARAMETERS: Event - The fixed event |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 516 | * event_status - Where the current status of the event will |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | * be returned |
| 518 | * |
| 519 | * RETURN: Status |
| 520 | * |
| 521 | * DESCRIPTION: Obtains and returns the current status of the event |
| 522 | * |
| 523 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 524 | acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 526 | acpi_status status = AE_OK; |
Zhang Rui | 71b58cb | 2008-06-20 09:42:47 +0800 | [diff] [blame] | 527 | u32 value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 529 | ACPI_FUNCTION_TRACE(acpi_get_event_status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | |
| 531 | if (!event_status) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 532 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | } |
| 534 | |
| 535 | /* Decode the Fixed Event */ |
| 536 | |
| 537 | if (event > ACPI_EVENT_MAX) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 538 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | } |
| 540 | |
| 541 | /* Get the status of the requested fixed event */ |
| 542 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 543 | status = |
Bob Moore | 50ffba1 | 2009-02-23 15:02:07 +0800 | [diff] [blame] | 544 | acpi_read_bit_register(acpi_gbl_fixed_event_info[event]. |
Zhang Rui | 71b58cb | 2008-06-20 09:42:47 +0800 | [diff] [blame] | 545 | enable_register_id, &value); |
| 546 | if (ACPI_FAILURE(status)) |
| 547 | return_ACPI_STATUS(status); |
| 548 | |
| 549 | *event_status = value; |
| 550 | |
| 551 | status = |
Bob Moore | 50ffba1 | 2009-02-23 15:02:07 +0800 | [diff] [blame] | 552 | acpi_read_bit_register(acpi_gbl_fixed_event_info[event]. |
Zhang Rui | 71b58cb | 2008-06-20 09:42:47 +0800 | [diff] [blame] | 553 | status_register_id, &value); |
| 554 | if (ACPI_FAILURE(status)) |
| 555 | return_ACPI_STATUS(status); |
| 556 | |
| 557 | if (value) |
| 558 | *event_status |= ACPI_EVENT_FLAG_SET; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | |
Zhang Rui | ed206fa | 2008-10-27 14:01:02 -0700 | [diff] [blame] | 560 | if (acpi_gbl_fixed_event_handlers[event].handler) |
| 561 | *event_status |= ACPI_EVENT_FLAG_HANDLE; |
| 562 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 563 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | } |
| 565 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 566 | ACPI_EXPORT_SYMBOL(acpi_get_event_status) |
| 567 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | /******************************************************************************* |
| 569 | * |
| 570 | * FUNCTION: acpi_get_gpe_status |
| 571 | * |
| 572 | * PARAMETERS: gpe_device - Parent GPE Device |
| 573 | * gpe_number - GPE level within the GPE block |
| 574 | * Flags - Called from an ISR or not |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 575 | * event_status - Where the current status of the event will |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | * be returned |
| 577 | * |
| 578 | * RETURN: Status |
| 579 | * |
| 580 | * DESCRIPTION: Get status of an event (general purpose) |
| 581 | * |
| 582 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 584 | acpi_get_gpe_status(acpi_handle gpe_device, |
| 585 | u32 gpe_number, u32 flags, acpi_event_status * event_status) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 587 | acpi_status status = AE_OK; |
| 588 | struct acpi_gpe_event_info *gpe_event_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 590 | ACPI_FUNCTION_TRACE(acpi_get_gpe_status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | |
| 592 | /* Use semaphore lock if not executing at interrupt level */ |
| 593 | |
| 594 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 595 | status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); |
| 596 | if (ACPI_FAILURE(status)) { |
| 597 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | } |
| 599 | } |
| 600 | |
| 601 | /* Ensure that we have a valid GPE number */ |
| 602 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 603 | gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | if (!gpe_event_info) { |
| 605 | status = AE_BAD_PARAMETER; |
| 606 | goto unlock_and_exit; |
| 607 | } |
| 608 | |
| 609 | /* Obtain status on the requested GPE number */ |
| 610 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 611 | status = acpi_hw_get_gpe_status(gpe_event_info, event_status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | |
Zhang Rui | ed206fa | 2008-10-27 14:01:02 -0700 | [diff] [blame] | 613 | if (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) |
| 614 | *event_status |= ACPI_EVENT_FLAG_HANDLE; |
| 615 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 616 | unlock_and_exit: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 618 | (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 620 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | } |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 622 | |
| 623 | ACPI_EXPORT_SYMBOL(acpi_get_gpe_status) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | /******************************************************************************* |
| 625 | * |
| 626 | * FUNCTION: acpi_install_gpe_block |
| 627 | * |
| 628 | * PARAMETERS: gpe_device - Handle to the parent GPE Block Device |
| 629 | * gpe_block_address - Address and space_iD |
| 630 | * register_count - Number of GPE register pairs in the block |
Robert Moore | 6f42ccf | 2005-05-13 00:00:00 -0400 | [diff] [blame] | 631 | * interrupt_number - H/W interrupt for the block |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | * |
| 633 | * RETURN: Status |
| 634 | * |
| 635 | * DESCRIPTION: Create and Install a block of GPE registers |
| 636 | * |
| 637 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 639 | acpi_install_gpe_block(acpi_handle gpe_device, |
| 640 | struct acpi_generic_address *gpe_block_address, |
| 641 | u32 register_count, u32 interrupt_number) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 643 | acpi_status status; |
| 644 | union acpi_operand_object *obj_desc; |
| 645 | struct acpi_namespace_node *node; |
| 646 | struct acpi_gpe_block_info *gpe_block; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 648 | ACPI_FUNCTION_TRACE(acpi_install_gpe_block); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 650 | if ((!gpe_device) || (!gpe_block_address) || (!register_count)) { |
| 651 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | } |
| 653 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 654 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); |
| 655 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | return (status); |
| 657 | } |
| 658 | |
Bob Moore | f24b664 | 2009-12-11 14:57:00 +0800 | [diff] [blame] | 659 | node = acpi_ns_validate_handle(gpe_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | if (!node) { |
| 661 | status = AE_BAD_PARAMETER; |
| 662 | goto unlock_and_exit; |
| 663 | } |
| 664 | |
| 665 | /* |
| 666 | * For user-installed GPE Block Devices, the gpe_block_base_number |
| 667 | * is always zero |
| 668 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 669 | status = |
| 670 | acpi_ev_create_gpe_block(node, gpe_block_address, register_count, 0, |
| 671 | interrupt_number, &gpe_block); |
| 672 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | goto unlock_and_exit; |
| 674 | } |
| 675 | |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 676 | /* Run the _PRW methods and enable the GPEs */ |
| 677 | |
| 678 | status = acpi_ev_initialize_gpe_block(node, gpe_block); |
| 679 | if (ACPI_FAILURE(status)) { |
| 680 | goto unlock_and_exit; |
| 681 | } |
| 682 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | /* Get the device_object attached to the node */ |
| 684 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 685 | obj_desc = acpi_ns_get_attached_object(node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | if (!obj_desc) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 687 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | /* No object, create a new one */ |
| 689 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 690 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_DEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | if (!obj_desc) { |
| 692 | status = AE_NO_MEMORY; |
| 693 | goto unlock_and_exit; |
| 694 | } |
| 695 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 696 | status = |
| 697 | acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_DEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | |
| 699 | /* Remove local reference to the object */ |
| 700 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 701 | acpi_ut_remove_reference(obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 702 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 703 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | goto unlock_and_exit; |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | /* Install the GPE block in the device_object */ |
| 709 | |
| 710 | obj_desc->device.gpe_block = gpe_block; |
| 711 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 712 | unlock_and_exit: |
| 713 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
| 714 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 717 | ACPI_EXPORT_SYMBOL(acpi_install_gpe_block) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | |
| 719 | /******************************************************************************* |
| 720 | * |
| 721 | * FUNCTION: acpi_remove_gpe_block |
| 722 | * |
| 723 | * PARAMETERS: gpe_device - Handle to the parent GPE Block Device |
| 724 | * |
| 725 | * RETURN: Status |
| 726 | * |
| 727 | * DESCRIPTION: Remove a previously installed block of GPE registers |
| 728 | * |
| 729 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 730 | acpi_status acpi_remove_gpe_block(acpi_handle gpe_device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 732 | union acpi_operand_object *obj_desc; |
| 733 | acpi_status status; |
| 734 | struct acpi_namespace_node *node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 736 | ACPI_FUNCTION_TRACE(acpi_remove_gpe_block); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | |
| 738 | if (!gpe_device) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 739 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | } |
| 741 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 742 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); |
| 743 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | return (status); |
| 745 | } |
| 746 | |
Bob Moore | f24b664 | 2009-12-11 14:57:00 +0800 | [diff] [blame] | 747 | node = acpi_ns_validate_handle(gpe_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | if (!node) { |
| 749 | status = AE_BAD_PARAMETER; |
| 750 | goto unlock_and_exit; |
| 751 | } |
| 752 | |
| 753 | /* Get the device_object attached to the node */ |
| 754 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 755 | obj_desc = acpi_ns_get_attached_object(node); |
| 756 | if (!obj_desc || !obj_desc->device.gpe_block) { |
| 757 | return_ACPI_STATUS(AE_NULL_OBJECT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | } |
| 759 | |
| 760 | /* Delete the GPE block (but not the device_object) */ |
| 761 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 762 | status = acpi_ev_delete_gpe_block(obj_desc->device.gpe_block); |
| 763 | if (ACPI_SUCCESS(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | obj_desc->device.gpe_block = NULL; |
| 765 | } |
| 766 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 767 | unlock_and_exit: |
| 768 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
| 769 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | } |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 771 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 772 | ACPI_EXPORT_SYMBOL(acpi_remove_gpe_block) |
Bob Moore | e97d6bf | 2008-12-30 09:45:17 +0800 | [diff] [blame] | 773 | |
| 774 | /******************************************************************************* |
| 775 | * |
| 776 | * FUNCTION: acpi_get_gpe_device |
| 777 | * |
| 778 | * PARAMETERS: Index - System GPE index (0-current_gpe_count) |
| 779 | * gpe_device - Where the parent GPE Device is returned |
| 780 | * |
| 781 | * RETURN: Status |
| 782 | * |
| 783 | * DESCRIPTION: Obtain the GPE device associated with the input index. A NULL |
| 784 | * gpe device indicates that the gpe number is contained in one of |
| 785 | * the FADT-defined gpe blocks. Otherwise, the GPE block device. |
| 786 | * |
| 787 | ******************************************************************************/ |
| 788 | acpi_status |
| 789 | acpi_get_gpe_device(u32 index, acpi_handle *gpe_device) |
| 790 | { |
| 791 | struct acpi_gpe_device_info info; |
| 792 | acpi_status status; |
| 793 | |
| 794 | ACPI_FUNCTION_TRACE(acpi_get_gpe_device); |
| 795 | |
| 796 | if (!gpe_device) { |
| 797 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
| 798 | } |
| 799 | |
| 800 | if (index >= acpi_current_gpe_count) { |
| 801 | return_ACPI_STATUS(AE_NOT_EXIST); |
| 802 | } |
| 803 | |
| 804 | /* Setup and walk the GPE list */ |
| 805 | |
| 806 | info.index = index; |
| 807 | info.status = AE_NOT_EXIST; |
| 808 | info.gpe_device = NULL; |
| 809 | info.next_block_base_index = 0; |
| 810 | |
| 811 | status = acpi_ev_walk_gpe_list(acpi_ev_get_gpe_device, &info); |
| 812 | if (ACPI_FAILURE(status)) { |
| 813 | return_ACPI_STATUS(status); |
| 814 | } |
| 815 | |
| 816 | *gpe_device = info.gpe_device; |
| 817 | return_ACPI_STATUS(info.status); |
| 818 | } |
| 819 | |
| 820 | ACPI_EXPORT_SYMBOL(acpi_get_gpe_device) |
| 821 | |
| 822 | /******************************************************************************* |
| 823 | * |
| 824 | * FUNCTION: acpi_ev_get_gpe_device |
| 825 | * |
| 826 | * PARAMETERS: GPE_WALK_CALLBACK |
| 827 | * |
| 828 | * RETURN: Status |
| 829 | * |
| 830 | * DESCRIPTION: Matches the input GPE index (0-current_gpe_count) with a GPE |
| 831 | * block device. NULL if the GPE is one of the FADT-defined GPEs. |
| 832 | * |
| 833 | ******************************************************************************/ |
Bob Moore | e4c1ebf | 2009-04-22 13:02:06 +0800 | [diff] [blame] | 834 | static acpi_status |
Bob Moore | e97d6bf | 2008-12-30 09:45:17 +0800 | [diff] [blame] | 835 | acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, |
| 836 | struct acpi_gpe_block_info *gpe_block, void *context) |
| 837 | { |
| 838 | struct acpi_gpe_device_info *info = context; |
| 839 | |
| 840 | /* Increment Index by the number of GPEs in this block */ |
| 841 | |
| 842 | info->next_block_base_index += |
| 843 | (gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH); |
| 844 | |
| 845 | if (info->index < info->next_block_base_index) { |
| 846 | /* |
| 847 | * The GPE index is within this block, get the node. Leave the node |
| 848 | * NULL for the FADT-defined GPEs |
| 849 | */ |
| 850 | if ((gpe_block->node)->type == ACPI_TYPE_DEVICE) { |
| 851 | info->gpe_device = gpe_block->node; |
| 852 | } |
| 853 | |
| 854 | info->status = AE_OK; |
| 855 | return (AE_CTRL_END); |
| 856 | } |
| 857 | |
| 858 | return (AE_OK); |
| 859 | } |
Bob Moore | 08ac07b | 2008-12-30 09:55:48 +0800 | [diff] [blame] | 860 | |
| 861 | /****************************************************************************** |
| 862 | * |
| 863 | * FUNCTION: acpi_disable_all_gpes |
| 864 | * |
| 865 | * PARAMETERS: None |
| 866 | * |
| 867 | * RETURN: Status |
| 868 | * |
| 869 | * DESCRIPTION: Disable and clear all GPEs in all GPE blocks |
| 870 | * |
| 871 | ******************************************************************************/ |
| 872 | |
| 873 | acpi_status acpi_disable_all_gpes(void) |
| 874 | { |
| 875 | acpi_status status; |
| 876 | |
| 877 | ACPI_FUNCTION_TRACE(acpi_disable_all_gpes); |
| 878 | |
| 879 | status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); |
| 880 | if (ACPI_FAILURE(status)) { |
| 881 | return_ACPI_STATUS(status); |
| 882 | } |
| 883 | |
| 884 | status = acpi_hw_disable_all_gpes(); |
| 885 | (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); |
| 886 | |
| 887 | return_ACPI_STATUS(status); |
| 888 | } |
| 889 | |
| 890 | /****************************************************************************** |
| 891 | * |
| 892 | * FUNCTION: acpi_enable_all_runtime_gpes |
| 893 | * |
| 894 | * PARAMETERS: None |
| 895 | * |
| 896 | * RETURN: Status |
| 897 | * |
| 898 | * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks |
| 899 | * |
| 900 | ******************************************************************************/ |
| 901 | |
| 902 | acpi_status acpi_enable_all_runtime_gpes(void) |
| 903 | { |
| 904 | acpi_status status; |
| 905 | |
| 906 | ACPI_FUNCTION_TRACE(acpi_enable_all_runtime_gpes); |
| 907 | |
| 908 | status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); |
| 909 | if (ACPI_FAILURE(status)) { |
| 910 | return_ACPI_STATUS(status); |
| 911 | } |
| 912 | |
| 913 | status = acpi_hw_enable_all_runtime_gpes(); |
| 914 | (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); |
| 915 | |
| 916 | return_ACPI_STATUS(status); |
| 917 | } |