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 | 4a90c7e | 2006-01-13 16:22:00 -0500 | [diff] [blame] | 8 | * Copyright (C) 2000 - 2006, R. Byron Moore |
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> |
| 45 | #include <acpi/acevents.h> |
| 46 | #include <acpi/acnamesp.h> |
| 47 | |
| 48 | #define _COMPONENT ACPI_EVENTS |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 49 | ACPI_MODULE_NAME("evxfevnt") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
| 51 | /******************************************************************************* |
| 52 | * |
| 53 | * FUNCTION: acpi_enable |
| 54 | * |
| 55 | * PARAMETERS: None |
| 56 | * |
| 57 | * RETURN: Status |
| 58 | * |
| 59 | * DESCRIPTION: Transfers the system into ACPI mode. |
| 60 | * |
| 61 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 62 | acpi_status acpi_enable(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 64 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 66 | ACPI_FUNCTION_TRACE(acpi_enable); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 68 | /* Make sure we have the FADT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
| 70 | if (!acpi_gbl_FADT) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 71 | ACPI_WARNING((AE_INFO, "No FADT information present!")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 72 | return_ACPI_STATUS(AE_NO_ACPI_TABLES); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 76 | ACPI_DEBUG_PRINT((ACPI_DB_INIT, |
| 77 | "System is already in ACPI mode\n")); |
| 78 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | /* Transition to ACPI mode */ |
| 80 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 81 | status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI); |
| 82 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 83 | ACPI_ERROR((AE_INFO, |
| 84 | "Could not transition to ACPI mode")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 85 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | } |
| 87 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 88 | ACPI_DEBUG_PRINT((ACPI_DB_INIT, |
| 89 | "Transition to ACPI mode successful\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | } |
| 91 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 92 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | } |
| 94 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 95 | ACPI_EXPORT_SYMBOL(acpi_enable) |
| 96 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | /******************************************************************************* |
| 98 | * |
| 99 | * FUNCTION: acpi_disable |
| 100 | * |
| 101 | * PARAMETERS: None |
| 102 | * |
| 103 | * RETURN: Status |
| 104 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 105 | * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | * |
| 107 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 108 | acpi_status acpi_disable(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 110 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 112 | ACPI_FUNCTION_TRACE(acpi_disable); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
| 114 | if (!acpi_gbl_FADT) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 115 | ACPI_WARNING((AE_INFO, "No FADT information present!")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 116 | return_ACPI_STATUS(AE_NO_ACPI_TABLES); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | } |
| 118 | |
| 119 | if (acpi_hw_get_mode() == ACPI_SYS_MODE_LEGACY) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 120 | ACPI_DEBUG_PRINT((ACPI_DB_INIT, |
| 121 | "System is already in legacy (non-ACPI) mode\n")); |
| 122 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | /* Transition to LEGACY mode */ |
| 124 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 125 | status = acpi_hw_set_mode(ACPI_SYS_MODE_LEGACY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 127 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 128 | ACPI_ERROR((AE_INFO, |
| 129 | "Could not exit ACPI mode to legacy mode")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 130 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | } |
| 132 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 133 | ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI mode disabled\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | } |
| 135 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 136 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | } |
| 138 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 139 | ACPI_EXPORT_SYMBOL(acpi_disable) |
| 140 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | /******************************************************************************* |
| 142 | * |
| 143 | * FUNCTION: acpi_enable_event |
| 144 | * |
| 145 | * PARAMETERS: Event - The fixed eventto be enabled |
| 146 | * Flags - Reserved |
| 147 | * |
| 148 | * RETURN: Status |
| 149 | * |
| 150 | * DESCRIPTION: Enable an ACPI event (fixed) |
| 151 | * |
| 152 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 153 | acpi_status acpi_enable_event(u32 event, u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 155 | acpi_status status = AE_OK; |
| 156 | u32 value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 158 | ACPI_FUNCTION_TRACE(acpi_enable_event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | |
| 160 | /* Decode the Fixed Event */ |
| 161 | |
| 162 | if (event > ACPI_EVENT_MAX) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 163 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | /* |
| 167 | * Enable the requested fixed event (by writing a one to the |
| 168 | * enable register bit) |
| 169 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 170 | status = |
| 171 | acpi_set_register(acpi_gbl_fixed_event_info[event]. |
| 172 | enable_register_id, 1, ACPI_MTX_LOCK); |
| 173 | if (ACPI_FAILURE(status)) { |
| 174 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | } |
| 176 | |
| 177 | /* Make sure that the hardware responded */ |
| 178 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 179 | status = |
| 180 | acpi_get_register(acpi_gbl_fixed_event_info[event]. |
| 181 | enable_register_id, &value, ACPI_MTX_LOCK); |
| 182 | if (ACPI_FAILURE(status)) { |
| 183 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | } |
| 185 | |
| 186 | if (value != 1) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 187 | ACPI_ERROR((AE_INFO, |
| 188 | "Could not enable %s event", |
| 189 | acpi_ut_get_event_name(event))); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 190 | return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | } |
| 192 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 193 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 196 | ACPI_EXPORT_SYMBOL(acpi_enable_event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | |
| 198 | /******************************************************************************* |
| 199 | * |
| 200 | * FUNCTION: acpi_set_gpe_type |
| 201 | * |
| 202 | * PARAMETERS: gpe_device - Parent GPE Device |
| 203 | * gpe_number - GPE level within the GPE block |
| 204 | * Type - New GPE type |
| 205 | * |
| 206 | * RETURN: Status |
| 207 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 208 | * DESCRIPTION: Set the type of an individual GPE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | * |
| 210 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 211 | acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 213 | acpi_status status = AE_OK; |
| 214 | struct acpi_gpe_event_info *gpe_event_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 216 | ACPI_FUNCTION_TRACE(acpi_set_gpe_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | |
| 218 | /* Ensure that we have a valid GPE number */ |
| 219 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 220 | 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] | 221 | if (!gpe_event_info) { |
| 222 | status = AE_BAD_PARAMETER; |
| 223 | goto unlock_and_exit; |
| 224 | } |
| 225 | |
| 226 | if ((gpe_event_info->flags & ACPI_GPE_TYPE_MASK) == type) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 227 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | } |
| 229 | |
| 230 | /* Set the new type (will disable GPE if currently enabled) */ |
| 231 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 232 | status = acpi_ev_set_gpe_type(gpe_event_info, type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 234 | unlock_and_exit: |
| 235 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 238 | ACPI_EXPORT_SYMBOL(acpi_set_gpe_type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
| 240 | /******************************************************************************* |
| 241 | * |
| 242 | * FUNCTION: acpi_enable_gpe |
| 243 | * |
| 244 | * PARAMETERS: gpe_device - Parent GPE Device |
| 245 | * gpe_number - GPE level within the GPE block |
| 246 | * Flags - Just enable, or also wake enable? |
| 247 | * Called from ISR or not |
| 248 | * |
| 249 | * RETURN: Status |
| 250 | * |
| 251 | * DESCRIPTION: Enable an ACPI event (general purpose) |
| 252 | * |
| 253 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 254 | acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 256 | acpi_status status = AE_OK; |
| 257 | struct acpi_gpe_event_info *gpe_event_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 259 | ACPI_FUNCTION_TRACE(acpi_enable_gpe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
| 261 | /* Use semaphore lock if not executing at interrupt level */ |
| 262 | |
| 263 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 264 | status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); |
| 265 | if (ACPI_FAILURE(status)) { |
| 266 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | } |
| 268 | } |
| 269 | |
| 270 | /* Ensure that we have a valid GPE number */ |
| 271 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 272 | 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] | 273 | if (!gpe_event_info) { |
| 274 | status = AE_BAD_PARAMETER; |
| 275 | goto unlock_and_exit; |
| 276 | } |
| 277 | |
| 278 | /* Perform the enable */ |
| 279 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 280 | status = acpi_ev_enable_gpe(gpe_event_info, TRUE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 282 | unlock_and_exit: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 284 | (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 286 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 289 | ACPI_EXPORT_SYMBOL(acpi_enable_gpe) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
| 291 | /******************************************************************************* |
| 292 | * |
| 293 | * FUNCTION: acpi_disable_gpe |
| 294 | * |
| 295 | * PARAMETERS: gpe_device - Parent GPE Device |
| 296 | * gpe_number - GPE level within the GPE block |
| 297 | * Flags - Just disable, or also wake disable? |
| 298 | * Called from ISR or not |
| 299 | * |
| 300 | * RETURN: Status |
| 301 | * |
| 302 | * DESCRIPTION: Disable an ACPI event (general purpose) |
| 303 | * |
| 304 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 305 | acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 307 | acpi_status status = AE_OK; |
| 308 | struct acpi_gpe_event_info *gpe_event_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 310 | ACPI_FUNCTION_TRACE(acpi_disable_gpe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | |
| 312 | /* Use semaphore lock if not executing at interrupt level */ |
| 313 | |
| 314 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 315 | status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); |
| 316 | if (ACPI_FAILURE(status)) { |
| 317 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | } |
| 319 | } |
| 320 | |
| 321 | /* Ensure that we have a valid GPE number */ |
| 322 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 323 | 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] | 324 | if (!gpe_event_info) { |
| 325 | status = AE_BAD_PARAMETER; |
| 326 | goto unlock_and_exit; |
| 327 | } |
| 328 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 329 | status = acpi_ev_disable_gpe(gpe_event_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 331 | unlock_and_exit: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 333 | (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); |
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 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | } |
| 337 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 338 | ACPI_EXPORT_SYMBOL(acpi_disable_gpe) |
| 339 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | /******************************************************************************* |
| 341 | * |
| 342 | * FUNCTION: acpi_disable_event |
| 343 | * |
| 344 | * PARAMETERS: Event - The fixed eventto be enabled |
| 345 | * Flags - Reserved |
| 346 | * |
| 347 | * RETURN: Status |
| 348 | * |
| 349 | * DESCRIPTION: Disable an ACPI event (fixed) |
| 350 | * |
| 351 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 352 | acpi_status acpi_disable_event(u32 event, u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 354 | acpi_status status = AE_OK; |
| 355 | u32 value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 357 | ACPI_FUNCTION_TRACE(acpi_disable_event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
| 359 | /* Decode the Fixed Event */ |
| 360 | |
| 361 | if (event > ACPI_EVENT_MAX) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 362 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | } |
| 364 | |
| 365 | /* |
| 366 | * Disable the requested fixed event (by writing a zero to the |
| 367 | * enable register bit) |
| 368 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 369 | status = |
| 370 | acpi_set_register(acpi_gbl_fixed_event_info[event]. |
| 371 | enable_register_id, 0, ACPI_MTX_LOCK); |
| 372 | if (ACPI_FAILURE(status)) { |
| 373 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | } |
| 375 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 376 | status = |
| 377 | acpi_get_register(acpi_gbl_fixed_event_info[event]. |
| 378 | enable_register_id, &value, ACPI_MTX_LOCK); |
| 379 | if (ACPI_FAILURE(status)) { |
| 380 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | } |
| 382 | |
| 383 | if (value != 0) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 384 | ACPI_ERROR((AE_INFO, |
| 385 | "Could not disable %s events", |
| 386 | acpi_ut_get_event_name(event))); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 387 | return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | } |
| 389 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 390 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 393 | ACPI_EXPORT_SYMBOL(acpi_disable_event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | |
| 395 | /******************************************************************************* |
| 396 | * |
| 397 | * FUNCTION: acpi_clear_event |
| 398 | * |
| 399 | * PARAMETERS: Event - The fixed event to be cleared |
| 400 | * |
| 401 | * RETURN: Status |
| 402 | * |
| 403 | * DESCRIPTION: Clear an ACPI event (fixed) |
| 404 | * |
| 405 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 406 | acpi_status acpi_clear_event(u32 event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 408 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 410 | ACPI_FUNCTION_TRACE(acpi_clear_event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | |
| 412 | /* Decode the Fixed Event */ |
| 413 | |
| 414 | if (event > ACPI_EVENT_MAX) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 415 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | } |
| 417 | |
| 418 | /* |
| 419 | * Clear the requested fixed event (By writing a one to the |
| 420 | * status register bit) |
| 421 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 422 | status = |
| 423 | acpi_set_register(acpi_gbl_fixed_event_info[event]. |
| 424 | status_register_id, 1, ACPI_MTX_LOCK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 426 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 429 | ACPI_EXPORT_SYMBOL(acpi_clear_event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | |
| 431 | /******************************************************************************* |
| 432 | * |
| 433 | * FUNCTION: acpi_clear_gpe |
| 434 | * |
| 435 | * PARAMETERS: gpe_device - Parent GPE Device |
| 436 | * gpe_number - GPE level within the GPE block |
| 437 | * Flags - Called from an ISR or not |
| 438 | * |
| 439 | * RETURN: Status |
| 440 | * |
| 441 | * DESCRIPTION: Clear an ACPI event (general purpose) |
| 442 | * |
| 443 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 444 | 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] | 445 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 446 | acpi_status status = AE_OK; |
| 447 | struct acpi_gpe_event_info *gpe_event_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 449 | ACPI_FUNCTION_TRACE(acpi_clear_gpe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | |
| 451 | /* Use semaphore lock if not executing at interrupt level */ |
| 452 | |
| 453 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 454 | status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); |
| 455 | if (ACPI_FAILURE(status)) { |
| 456 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | } |
| 458 | } |
| 459 | |
| 460 | /* Ensure that we have a valid GPE number */ |
| 461 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 462 | 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] | 463 | if (!gpe_event_info) { |
| 464 | status = AE_BAD_PARAMETER; |
| 465 | goto unlock_and_exit; |
| 466 | } |
| 467 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 468 | status = acpi_hw_clear_gpe(gpe_event_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 470 | unlock_and_exit: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 472 | (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 474 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | } |
| 476 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 477 | ACPI_EXPORT_SYMBOL(acpi_clear_gpe) |
| 478 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | #ifdef ACPI_FUTURE_USAGE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | /******************************************************************************* |
| 481 | * |
| 482 | * FUNCTION: acpi_get_event_status |
| 483 | * |
| 484 | * PARAMETERS: Event - The fixed event |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 485 | * event_status - Where the current status of the event will |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | * be returned |
| 487 | * |
| 488 | * RETURN: Status |
| 489 | * |
| 490 | * DESCRIPTION: Obtains and returns the current status of the event |
| 491 | * |
| 492 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 493 | 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] | 494 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 495 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 497 | ACPI_FUNCTION_TRACE(acpi_get_event_status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | |
| 499 | if (!event_status) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 500 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | } |
| 502 | |
| 503 | /* Decode the Fixed Event */ |
| 504 | |
| 505 | if (event > ACPI_EVENT_MAX) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 506 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | } |
| 508 | |
| 509 | /* Get the status of the requested fixed event */ |
| 510 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 511 | status = |
| 512 | acpi_get_register(acpi_gbl_fixed_event_info[event]. |
| 513 | status_register_id, event_status, ACPI_MTX_LOCK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 515 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | } |
| 517 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 518 | ACPI_EXPORT_SYMBOL(acpi_get_event_status) |
| 519 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | /******************************************************************************* |
| 521 | * |
| 522 | * FUNCTION: acpi_get_gpe_status |
| 523 | * |
| 524 | * PARAMETERS: gpe_device - Parent GPE Device |
| 525 | * gpe_number - GPE level within the GPE block |
| 526 | * Flags - Called from an ISR or not |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 527 | * event_status - Where the current status of the event will |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | * be returned |
| 529 | * |
| 530 | * RETURN: Status |
| 531 | * |
| 532 | * DESCRIPTION: Get status of an event (general purpose) |
| 533 | * |
| 534 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 536 | acpi_get_gpe_status(acpi_handle gpe_device, |
| 537 | u32 gpe_number, u32 flags, acpi_event_status * event_status) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 539 | acpi_status status = AE_OK; |
| 540 | struct acpi_gpe_event_info *gpe_event_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 542 | ACPI_FUNCTION_TRACE(acpi_get_gpe_status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | |
| 544 | /* Use semaphore lock if not executing at interrupt level */ |
| 545 | |
| 546 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 547 | status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); |
| 548 | if (ACPI_FAILURE(status)) { |
| 549 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | } |
| 551 | } |
| 552 | |
| 553 | /* Ensure that we have a valid GPE number */ |
| 554 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 555 | 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] | 556 | if (!gpe_event_info) { |
| 557 | status = AE_BAD_PARAMETER; |
| 558 | goto unlock_and_exit; |
| 559 | } |
| 560 | |
| 561 | /* Obtain status on the requested GPE number */ |
| 562 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 563 | status = acpi_hw_get_gpe_status(gpe_event_info, event_status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 565 | unlock_and_exit: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | if (flags & ACPI_NOT_ISR) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 567 | (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 569 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | } |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 571 | |
| 572 | ACPI_EXPORT_SYMBOL(acpi_get_gpe_status) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 573 | #endif /* ACPI_FUTURE_USAGE */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | |
| 575 | /******************************************************************************* |
| 576 | * |
| 577 | * FUNCTION: acpi_install_gpe_block |
| 578 | * |
| 579 | * PARAMETERS: gpe_device - Handle to the parent GPE Block Device |
| 580 | * gpe_block_address - Address and space_iD |
| 581 | * register_count - Number of GPE register pairs in the block |
Robert Moore | 6f42ccf | 2005-05-13 00:00:00 -0400 | [diff] [blame] | 582 | * interrupt_number - H/W interrupt for the block |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | * |
| 584 | * RETURN: Status |
| 585 | * |
| 586 | * DESCRIPTION: Create and Install a block of GPE registers |
| 587 | * |
| 588 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 590 | acpi_install_gpe_block(acpi_handle gpe_device, |
| 591 | struct acpi_generic_address *gpe_block_address, |
| 592 | u32 register_count, u32 interrupt_number) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 594 | acpi_status status; |
| 595 | union acpi_operand_object *obj_desc; |
| 596 | struct acpi_namespace_node *node; |
| 597 | struct acpi_gpe_block_info *gpe_block; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 599 | ACPI_FUNCTION_TRACE(acpi_install_gpe_block); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 601 | if ((!gpe_device) || (!gpe_block_address) || (!register_count)) { |
| 602 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | } |
| 604 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 605 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); |
| 606 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | return (status); |
| 608 | } |
| 609 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 610 | node = acpi_ns_map_handle_to_node(gpe_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | if (!node) { |
| 612 | status = AE_BAD_PARAMETER; |
| 613 | goto unlock_and_exit; |
| 614 | } |
| 615 | |
| 616 | /* |
| 617 | * For user-installed GPE Block Devices, the gpe_block_base_number |
| 618 | * is always zero |
| 619 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 620 | status = |
| 621 | acpi_ev_create_gpe_block(node, gpe_block_address, register_count, 0, |
| 622 | interrupt_number, &gpe_block); |
| 623 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | goto unlock_and_exit; |
| 625 | } |
| 626 | |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 627 | /* Run the _PRW methods and enable the GPEs */ |
| 628 | |
| 629 | status = acpi_ev_initialize_gpe_block(node, gpe_block); |
| 630 | if (ACPI_FAILURE(status)) { |
| 631 | goto unlock_and_exit; |
| 632 | } |
| 633 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | /* Get the device_object attached to the node */ |
| 635 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 636 | obj_desc = acpi_ns_get_attached_object(node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | if (!obj_desc) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 638 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | /* No object, create a new one */ |
| 640 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 641 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_DEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | if (!obj_desc) { |
| 643 | status = AE_NO_MEMORY; |
| 644 | goto unlock_and_exit; |
| 645 | } |
| 646 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 647 | status = |
| 648 | acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_DEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | |
| 650 | /* Remove local reference to the object */ |
| 651 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 652 | acpi_ut_remove_reference(obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 654 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | goto unlock_and_exit; |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | /* Install the GPE block in the device_object */ |
| 660 | |
| 661 | obj_desc->device.gpe_block = gpe_block; |
| 662 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 663 | unlock_and_exit: |
| 664 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
| 665 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 668 | ACPI_EXPORT_SYMBOL(acpi_install_gpe_block) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | |
| 670 | /******************************************************************************* |
| 671 | * |
| 672 | * FUNCTION: acpi_remove_gpe_block |
| 673 | * |
| 674 | * PARAMETERS: gpe_device - Handle to the parent GPE Block Device |
| 675 | * |
| 676 | * RETURN: Status |
| 677 | * |
| 678 | * DESCRIPTION: Remove a previously installed block of GPE registers |
| 679 | * |
| 680 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 681 | acpi_status acpi_remove_gpe_block(acpi_handle gpe_device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 683 | union acpi_operand_object *obj_desc; |
| 684 | acpi_status status; |
| 685 | struct acpi_namespace_node *node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame^] | 687 | ACPI_FUNCTION_TRACE(acpi_remove_gpe_block); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | |
| 689 | if (!gpe_device) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 690 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | } |
| 692 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 693 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); |
| 694 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | return (status); |
| 696 | } |
| 697 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 698 | node = acpi_ns_map_handle_to_node(gpe_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | if (!node) { |
| 700 | status = AE_BAD_PARAMETER; |
| 701 | goto unlock_and_exit; |
| 702 | } |
| 703 | |
| 704 | /* Get the device_object attached to the node */ |
| 705 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 706 | obj_desc = acpi_ns_get_attached_object(node); |
| 707 | if (!obj_desc || !obj_desc->device.gpe_block) { |
| 708 | return_ACPI_STATUS(AE_NULL_OBJECT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | } |
| 710 | |
| 711 | /* Delete the GPE block (but not the device_object) */ |
| 712 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 713 | status = acpi_ev_delete_gpe_block(obj_desc->device.gpe_block); |
| 714 | if (ACPI_SUCCESS(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | obj_desc->device.gpe_block = NULL; |
| 716 | } |
| 717 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 718 | unlock_and_exit: |
| 719 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
| 720 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | } |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 722 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 723 | ACPI_EXPORT_SYMBOL(acpi_remove_gpe_block) |