Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: utxface - External interfaces for "global" ACPI functions |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
Len Brown | 75a44ce | 2008-04-23 23:00:13 -0400 | [diff] [blame] | 8 | * Copyright (C) 2000 - 2008, 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 "acdebug.h" |
| 49 | #include "actables.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
| 51 | #define _COMPONENT ACPI_UTILITIES |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 52 | ACPI_MODULE_NAME("utxface") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
Bob Moore | e20a679 | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 54 | #ifndef ACPI_ASL_COMPILER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | /******************************************************************************* |
| 56 | * |
| 57 | * FUNCTION: acpi_initialize_subsystem |
| 58 | * |
| 59 | * PARAMETERS: None |
| 60 | * |
| 61 | * RETURN: Status |
| 62 | * |
| 63 | * DESCRIPTION: Initializes all global variables. This is the first function |
| 64 | * called, so any early initialization belongs here. |
| 65 | * |
| 66 | ******************************************************************************/ |
Len Brown | dd272b5 | 2007-05-30 00:26:11 -0400 | [diff] [blame] | 67 | acpi_status __init acpi_initialize_subsystem(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 69 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 71 | ACPI_FUNCTION_TRACE(acpi_initialize_subsystem); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 72 | |
Bob Moore | cb219bb | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 73 | acpi_gbl_startup_flags = ACPI_SUBSYSTEM_INITIALIZE; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 74 | ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace()); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | /* Initialize the OS-Dependent layer */ |
| 77 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 78 | status = acpi_os_initialize(); |
| 79 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 80 | ACPI_EXCEPTION((AE_INFO, status, "During OSL initialization")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 81 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | } |
| 83 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 84 | /* Initialize all globals used by the subsystem */ |
| 85 | |
Yi Yang | b417d40 | 2008-08-04 10:30:09 +0800 | [diff] [blame] | 86 | status = acpi_ut_init_globals(); |
| 87 | if (ACPI_FAILURE(status)) { |
| 88 | ACPI_EXCEPTION((AE_INFO, status, |
| 89 | "During initialization of globals")); |
| 90 | return_ACPI_STATUS(status); |
| 91 | } |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 92 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | /* Create the default mutex objects */ |
| 94 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 95 | status = acpi_ut_mutex_initialize(); |
| 96 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 97 | ACPI_EXCEPTION((AE_INFO, status, |
| 98 | "During Global Mutex creation")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 99 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | /* |
| 103 | * Initialize the namespace manager and |
| 104 | * the root of the namespace tree |
| 105 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 106 | status = acpi_ns_root_initialize(); |
| 107 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 108 | ACPI_EXCEPTION((AE_INFO, status, |
| 109 | "During Namespace initialization")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 110 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | } |
| 112 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | /* If configured, initialize the AML debugger */ |
| 114 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 115 | ACPI_DEBUGGER_EXEC(status = acpi_db_initialize()); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 116 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | } |
| 118 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | /******************************************************************************* |
| 120 | * |
| 121 | * FUNCTION: acpi_enable_subsystem |
| 122 | * |
| 123 | * PARAMETERS: Flags - Init/enable Options |
| 124 | * |
| 125 | * RETURN: Status |
| 126 | * |
| 127 | * DESCRIPTION: Completes the subsystem initialization including hardware. |
| 128 | * Puts system into ACPI mode if it isn't already. |
| 129 | * |
| 130 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 131 | acpi_status acpi_enable_subsystem(u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 133 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 135 | ACPI_FUNCTION_TRACE(acpi_enable_subsystem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | /* Enable ACPI mode */ |
| 138 | |
| 139 | if (!(flags & ACPI_NO_ACPI_ENABLE)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 140 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 141 | "[Init] Going into ACPI mode\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | |
| 143 | acpi_gbl_original_mode = acpi_hw_get_mode(); |
| 144 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 145 | status = acpi_enable(); |
| 146 | if (ACPI_FAILURE(status)) { |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 147 | ACPI_WARNING((AE_INFO, "AcpiEnable failed")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 148 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | } |
| 150 | } |
| 151 | |
| 152 | /* |
Bob Moore | 009c4cbe | 2008-11-12 15:34:52 +0800 | [diff] [blame] | 153 | * Obtain a permanent mapping for the FACS. This is required for the |
| 154 | * Global Lock and the Firmware Waking Vector |
| 155 | */ |
| 156 | status = acpi_tb_initialize_facs(); |
| 157 | if (ACPI_FAILURE(status)) { |
| 158 | ACPI_WARNING((AE_INFO, "Could not map the FACS table")); |
| 159 | return_ACPI_STATUS(status); |
| 160 | } |
| 161 | |
| 162 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | * Install the default op_region handlers. These are installed unless |
| 164 | * other handlers have already been installed via the |
| 165 | * install_address_space_handler interface. |
| 166 | */ |
| 167 | if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 168 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 169 | "[Init] Installing default address space handlers\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 171 | status = acpi_ev_install_region_handlers(); |
| 172 | if (ACPI_FAILURE(status)) { |
| 173 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | } |
| 175 | } |
| 176 | |
| 177 | /* |
| 178 | * Initialize ACPI Event handling (Fixed and General Purpose) |
| 179 | * |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 180 | * Note1: We must have the hardware and events initialized before we can |
| 181 | * execute any control methods safely. Any control method can require |
| 182 | * ACPI hardware support, so the hardware must be fully initialized before |
| 183 | * any method execution! |
| 184 | * |
| 185 | * Note2: Fixed events are initialized and enabled here. GPEs are |
| 186 | * initialized, but cannot be enabled until after the hardware is |
| 187 | * completely initialized (SCI and global_lock activated) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | */ |
| 189 | if (!(flags & ACPI_NO_EVENT_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 190 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 191 | "[Init] Initializing ACPI events\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 193 | status = acpi_ev_initialize_events(); |
| 194 | if (ACPI_FAILURE(status)) { |
| 195 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | } |
| 197 | } |
| 198 | |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 199 | /* |
| 200 | * Install the SCI handler and Global Lock handler. This completes the |
| 201 | * hardware initialization. |
| 202 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | if (!(flags & ACPI_NO_HANDLER_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 204 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 205 | "[Init] Installing SCI/GL handlers\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 207 | status = acpi_ev_install_xrupt_handlers(); |
| 208 | if (ACPI_FAILURE(status)) { |
| 209 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | } |
| 211 | } |
| 212 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 213 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | } |
| 215 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 216 | ACPI_EXPORT_SYMBOL(acpi_enable_subsystem) |
| 217 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | /******************************************************************************* |
| 219 | * |
| 220 | * FUNCTION: acpi_initialize_objects |
| 221 | * |
| 222 | * PARAMETERS: Flags - Init/enable Options |
| 223 | * |
| 224 | * RETURN: Status |
| 225 | * |
| 226 | * DESCRIPTION: Completes namespace initialization by initializing device |
| 227 | * objects and executing AML code for Regions, buffers, etc. |
| 228 | * |
| 229 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 230 | acpi_status acpi_initialize_objects(u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 232 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 234 | ACPI_FUNCTION_TRACE(acpi_initialize_objects); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | |
| 236 | /* |
| 237 | * Run all _REG methods |
| 238 | * |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 239 | * Note: Any objects accessed by the _REG methods will be automatically |
| 240 | * initialized, even if they contain executable AML (see the call to |
| 241 | * acpi_ns_initialize_objects below). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | */ |
| 243 | if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 244 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 245 | "[Init] Executing _REG OpRegion methods\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 247 | status = acpi_ev_initialize_op_regions(); |
| 248 | if (ACPI_FAILURE(status)) { |
| 249 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | } |
| 251 | } |
| 252 | |
| 253 | /* |
Lin Ming | 7f0c826 | 2009-08-13 14:03:15 +0800 | [diff] [blame] | 254 | * Execute any module-level code that was detected during the table load |
| 255 | * phase. Although illegal since ACPI 2.0, there are many machines that |
| 256 | * contain this type of code. Each block of detected executable AML code |
| 257 | * outside of any control method is wrapped with a temporary control |
| 258 | * method object and placed on a global list. The methods on this list |
| 259 | * are executed below. |
| 260 | */ |
| 261 | acpi_ns_exec_module_code_list(); |
| 262 | |
| 263 | /* |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 264 | * Initialize the objects that remain uninitialized. This runs the |
| 265 | * executable AML that may be part of the declaration of these objects: |
| 266 | * operation_regions, buffer_fields, Buffers, and Packages. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | */ |
| 268 | if (!(flags & ACPI_NO_OBJECT_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 269 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 270 | "[Init] Completing Initialization of ACPI Objects\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 272 | status = acpi_ns_initialize_objects(); |
| 273 | if (ACPI_FAILURE(status)) { |
| 274 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | } |
| 276 | } |
| 277 | |
| 278 | /* |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 279 | * Initialize all device objects in the namespace. This runs the device |
| 280 | * _STA and _INI methods. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | */ |
| 282 | if (!(flags & ACPI_NO_DEVICE_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 283 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 284 | "[Init] Initializing ACPI Devices\n")); |
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 | status = acpi_ns_initialize_devices(); |
| 287 | if (ACPI_FAILURE(status)) { |
| 288 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | } |
| 290 | } |
| 291 | |
| 292 | /* |
Alexey Starikovskiy | 2044702 | 2008-03-11 17:17:08 -0400 | [diff] [blame] | 293 | * Complete the GPE initialization for the GPE blocks defined in the FADT |
| 294 | * (GPE block 0 and 1). |
| 295 | * |
| 296 | * Note1: This is where the _PRW methods are executed for the GPEs. These |
| 297 | * methods can only be executed after the SCI and Global Lock handlers are |
| 298 | * installed and initialized. |
| 299 | * |
| 300 | * Note2: Currently, there seems to be no need to run the _REG methods |
| 301 | * before execution of the _PRW methods and enabling of the GPEs. |
| 302 | */ |
| 303 | if (!(flags & ACPI_NO_EVENT_INIT)) { |
| 304 | status = acpi_ev_install_fadt_gpes(); |
| 305 | if (ACPI_FAILURE(status)) |
| 306 | return (status); |
| 307 | } |
| 308 | |
| 309 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | * Empty the caches (delete the cached objects) on the assumption that |
| 311 | * the table load filled them up more than they will be at runtime -- |
| 312 | * thus wasting non-paged memory. |
| 313 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 314 | status = acpi_purge_cached_objects(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | |
| 316 | acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 317 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | } |
| 319 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 320 | ACPI_EXPORT_SYMBOL(acpi_initialize_objects) |
| 321 | |
Bob Moore | e20a679 | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 322 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | /******************************************************************************* |
| 324 | * |
| 325 | * FUNCTION: acpi_terminate |
| 326 | * |
| 327 | * PARAMETERS: None |
| 328 | * |
| 329 | * RETURN: Status |
| 330 | * |
Bob Moore | 2f977b3 | 2009-07-24 11:25:16 +0800 | [diff] [blame] | 331 | * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | * |
| 333 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 334 | acpi_status acpi_terminate(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 336 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 338 | ACPI_FUNCTION_TRACE(acpi_terminate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | |
Bob Moore | 2f977b3 | 2009-07-24 11:25:16 +0800 | [diff] [blame] | 340 | /* Just exit if subsystem is already shutdown */ |
| 341 | |
| 342 | if (acpi_gbl_shutdown) { |
| 343 | ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); |
| 344 | return_ACPI_STATUS(AE_OK); |
| 345 | } |
| 346 | |
| 347 | /* Subsystem appears active, go ahead and shut it down */ |
| 348 | |
| 349 | acpi_gbl_shutdown = TRUE; |
| 350 | acpi_gbl_startup_flags = 0; |
| 351 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); |
| 352 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | /* Terminate the AML Debugger if present */ |
| 354 | |
| 355 | ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE); |
| 356 | |
| 357 | /* Shutdown and free all resources */ |
| 358 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 359 | acpi_ut_subsystem_shutdown(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | |
| 361 | /* Free the mutex objects */ |
| 362 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 363 | acpi_ut_mutex_terminate(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | |
| 365 | #ifdef ACPI_DEBUGGER |
| 366 | |
| 367 | /* Shut down the debugger */ |
| 368 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 369 | acpi_db_terminate(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | #endif |
| 371 | |
| 372 | /* Now we can shutdown the OS-dependent layer */ |
| 373 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 374 | status = acpi_os_terminate(); |
| 375 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | } |
| 377 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 378 | ACPI_EXPORT_SYMBOL(acpi_terminate) |
Bob Moore | 2f977b3 | 2009-07-24 11:25:16 +0800 | [diff] [blame] | 379 | |
Bob Moore | e20a679 | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 380 | #ifndef ACPI_ASL_COMPILER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | #ifdef ACPI_FUTURE_USAGE |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 382 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | * |
| 384 | * FUNCTION: acpi_subsystem_status |
| 385 | * |
| 386 | * PARAMETERS: None |
| 387 | * |
| 388 | * RETURN: Status of the ACPI subsystem |
| 389 | * |
| 390 | * DESCRIPTION: Other drivers that use the ACPI subsystem should call this |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 391 | * before making any other calls, to ensure the subsystem |
| 392 | * initialized successfully. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 394 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 395 | acpi_status acpi_subsystem_status(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | { |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 397 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | if (acpi_gbl_startup_flags & ACPI_INITIALIZED_OK) { |
| 399 | return (AE_OK); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 400 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | return (AE_ERROR); |
| 402 | } |
| 403 | } |
| 404 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 405 | ACPI_EXPORT_SYMBOL(acpi_subsystem_status) |
| 406 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 407 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | * |
| 409 | * FUNCTION: acpi_get_system_info |
| 410 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 411 | * PARAMETERS: out_buffer - A buffer to receive the resources for the |
| 412 | * device |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | * |
| 414 | * RETURN: Status - the status of the call |
| 415 | * |
| 416 | * DESCRIPTION: This function is called to get information about the current |
| 417 | * state of the ACPI subsystem. It will return system information |
| 418 | * in the out_buffer. |
| 419 | * |
| 420 | * If the function fails an appropriate status will be returned |
| 421 | * and the value of out_buffer is undefined. |
| 422 | * |
| 423 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 424 | acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer) |
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 | struct acpi_system_info *info_ptr; |
| 427 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 429 | ACPI_FUNCTION_TRACE(acpi_get_system_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | |
| 431 | /* Parameter validation */ |
| 432 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 433 | status = acpi_ut_validate_buffer(out_buffer); |
| 434 | if (ACPI_FAILURE(status)) { |
| 435 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | } |
| 437 | |
| 438 | /* Validate/Allocate/Clear caller buffer */ |
| 439 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 440 | status = |
| 441 | acpi_ut_initialize_buffer(out_buffer, |
| 442 | sizeof(struct acpi_system_info)); |
| 443 | if (ACPI_FAILURE(status)) { |
| 444 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | } |
| 446 | |
| 447 | /* |
| 448 | * Populate the return buffer |
| 449 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 450 | info_ptr = (struct acpi_system_info *)out_buffer->pointer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 452 | info_ptr->acpi_ca_version = ACPI_CA_VERSION; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | |
| 454 | /* System flags (ACPI capabilities) */ |
| 455 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 456 | info_ptr->flags = ACPI_SYS_MODE_ACPI; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | |
| 458 | /* Timer resolution - 24 or 32 bits */ |
| 459 | |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 460 | if (acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | info_ptr->timer_resolution = 24; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 462 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | info_ptr->timer_resolution = 32; |
| 464 | } |
| 465 | |
| 466 | /* Clear the reserved fields */ |
| 467 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 468 | info_ptr->reserved1 = 0; |
| 469 | info_ptr->reserved2 = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | |
| 471 | /* Current debug levels */ |
| 472 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 473 | info_ptr->debug_layer = acpi_dbg_layer; |
| 474 | info_ptr->debug_level = acpi_dbg_level; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 476 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 479 | ACPI_EXPORT_SYMBOL(acpi_get_system_info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | |
| 481 | /***************************************************************************** |
| 482 | * |
| 483 | * FUNCTION: acpi_install_initialization_handler |
| 484 | * |
| 485 | * PARAMETERS: Handler - Callback procedure |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 486 | * Function - Not (currently) used, see below |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | * |
| 488 | * RETURN: Status |
| 489 | * |
| 490 | * DESCRIPTION: Install an initialization handler |
| 491 | * |
| 492 | * TBD: When a second function is added, must save the Function also. |
| 493 | * |
| 494 | ****************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 496 | acpi_install_initialization_handler(acpi_init_handler handler, u32 function) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | { |
| 498 | |
| 499 | if (!handler) { |
| 500 | return (AE_BAD_PARAMETER); |
| 501 | } |
| 502 | |
| 503 | if (acpi_gbl_init_handler) { |
| 504 | return (AE_ALREADY_EXISTS); |
| 505 | } |
| 506 | |
| 507 | acpi_gbl_init_handler = handler; |
| 508 | return AE_OK; |
| 509 | } |
| 510 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 511 | ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 512 | #endif /* ACPI_FUTURE_USAGE */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | /***************************************************************************** |
| 514 | * |
| 515 | * FUNCTION: acpi_purge_cached_objects |
| 516 | * |
| 517 | * PARAMETERS: None |
| 518 | * |
| 519 | * RETURN: Status |
| 520 | * |
| 521 | * DESCRIPTION: Empty all caches (delete the cached objects) |
| 522 | * |
| 523 | ****************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 524 | acpi_status acpi_purge_cached_objects(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | { |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 526 | ACPI_FUNCTION_TRACE(acpi_purge_cached_objects); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 528 | (void)acpi_os_purge_cache(acpi_gbl_state_cache); |
| 529 | (void)acpi_os_purge_cache(acpi_gbl_operand_cache); |
| 530 | (void)acpi_os_purge_cache(acpi_gbl_ps_node_cache); |
| 531 | (void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache); |
| 532 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | } |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 534 | |
| 535 | ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects) |
Bob Moore | e20a679 | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 536 | #endif |