Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: utinit - Common ACPI subsystem initialization |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2005, R. Byron Moore |
| 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 | |
| 44 | |
| 45 | #include <acpi/acpi.h> |
| 46 | #include <acpi/acnamesp.h> |
| 47 | #include <acpi/acevents.h> |
| 48 | |
| 49 | #define _COMPONENT ACPI_UTILITIES |
| 50 | ACPI_MODULE_NAME ("utinit") |
| 51 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 52 | /* Local prototypes */ |
| 53 | |
| 54 | static void |
| 55 | acpi_ut_fadt_register_error ( |
| 56 | char *register_name, |
| 57 | u32 value, |
| 58 | acpi_size offset); |
| 59 | |
| 60 | static void acpi_ut_terminate ( |
| 61 | void); |
| 62 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | |
| 64 | /******************************************************************************* |
| 65 | * |
| 66 | * FUNCTION: acpi_ut_fadt_register_error |
| 67 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 68 | * PARAMETERS: register_name - Pointer to string identifying register |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | * Value - Actual register contents value |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 70 | * Offset - Byte offset in the FADT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | * |
| 72 | * RETURN: AE_BAD_VALUE |
| 73 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 74 | * DESCRIPTION: Display failure message |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | * |
| 76 | ******************************************************************************/ |
| 77 | |
| 78 | static void |
| 79 | acpi_ut_fadt_register_error ( |
| 80 | char *register_name, |
| 81 | u32 value, |
| 82 | acpi_size offset) |
| 83 | { |
| 84 | |
| 85 | ACPI_REPORT_WARNING ( |
| 86 | ("Invalid FADT value %s=%X at offset %X FADT=%p\n", |
| 87 | register_name, value, (u32) offset, acpi_gbl_FADT)); |
| 88 | } |
| 89 | |
| 90 | |
| 91 | /****************************************************************************** |
| 92 | * |
| 93 | * FUNCTION: acpi_ut_validate_fadt |
| 94 | * |
| 95 | * PARAMETERS: None |
| 96 | * |
| 97 | * RETURN: Status |
| 98 | * |
| 99 | * DESCRIPTION: Validate various ACPI registers in the FADT |
| 100 | * |
| 101 | ******************************************************************************/ |
| 102 | |
| 103 | acpi_status |
| 104 | acpi_ut_validate_fadt ( |
| 105 | void) |
| 106 | { |
| 107 | |
| 108 | /* |
| 109 | * Verify Fixed ACPI Description Table fields, |
| 110 | * but don't abort on any problems, just display error |
| 111 | */ |
| 112 | if (acpi_gbl_FADT->pm1_evt_len < 4) { |
| 113 | acpi_ut_fadt_register_error ("PM1_EVT_LEN", |
| 114 | (u32) acpi_gbl_FADT->pm1_evt_len, |
| 115 | ACPI_FADT_OFFSET (pm1_evt_len)); |
| 116 | } |
| 117 | |
| 118 | if (!acpi_gbl_FADT->pm1_cnt_len) { |
| 119 | acpi_ut_fadt_register_error ("PM1_CNT_LEN", 0, |
| 120 | ACPI_FADT_OFFSET (pm1_cnt_len)); |
| 121 | } |
| 122 | |
| 123 | if (!acpi_gbl_FADT->xpm1a_evt_blk.address) { |
| 124 | acpi_ut_fadt_register_error ("X_PM1a_EVT_BLK", 0, |
| 125 | ACPI_FADT_OFFSET (xpm1a_evt_blk.address)); |
| 126 | } |
| 127 | |
| 128 | if (!acpi_gbl_FADT->xpm1a_cnt_blk.address) { |
| 129 | acpi_ut_fadt_register_error ("X_PM1a_CNT_BLK", 0, |
| 130 | ACPI_FADT_OFFSET (xpm1a_cnt_blk.address)); |
| 131 | } |
| 132 | |
| 133 | if (!acpi_gbl_FADT->xpm_tmr_blk.address) { |
| 134 | acpi_ut_fadt_register_error ("X_PM_TMR_BLK", 0, |
| 135 | ACPI_FADT_OFFSET (xpm_tmr_blk.address)); |
| 136 | } |
| 137 | |
| 138 | if ((acpi_gbl_FADT->xpm2_cnt_blk.address && |
| 139 | !acpi_gbl_FADT->pm2_cnt_len)) { |
| 140 | acpi_ut_fadt_register_error ("PM2_CNT_LEN", |
| 141 | (u32) acpi_gbl_FADT->pm2_cnt_len, |
| 142 | ACPI_FADT_OFFSET (pm2_cnt_len)); |
| 143 | } |
| 144 | |
| 145 | if (acpi_gbl_FADT->pm_tm_len < 4) { |
| 146 | acpi_ut_fadt_register_error ("PM_TM_LEN", |
| 147 | (u32) acpi_gbl_FADT->pm_tm_len, |
| 148 | ACPI_FADT_OFFSET (pm_tm_len)); |
| 149 | } |
| 150 | |
| 151 | /* Length of GPE blocks must be a multiple of 2 */ |
| 152 | |
| 153 | if (acpi_gbl_FADT->xgpe0_blk.address && |
| 154 | (acpi_gbl_FADT->gpe0_blk_len & 1)) { |
| 155 | acpi_ut_fadt_register_error ("(x)GPE0_BLK_LEN", |
| 156 | (u32) acpi_gbl_FADT->gpe0_blk_len, |
| 157 | ACPI_FADT_OFFSET (gpe0_blk_len)); |
| 158 | } |
| 159 | |
| 160 | if (acpi_gbl_FADT->xgpe1_blk.address && |
| 161 | (acpi_gbl_FADT->gpe1_blk_len & 1)) { |
| 162 | acpi_ut_fadt_register_error ("(x)GPE1_BLK_LEN", |
| 163 | (u32) acpi_gbl_FADT->gpe1_blk_len, |
| 164 | ACPI_FADT_OFFSET (gpe1_blk_len)); |
| 165 | } |
| 166 | |
| 167 | return (AE_OK); |
| 168 | } |
| 169 | |
| 170 | |
| 171 | /****************************************************************************** |
| 172 | * |
| 173 | * FUNCTION: acpi_ut_terminate |
| 174 | * |
| 175 | * PARAMETERS: none |
| 176 | * |
| 177 | * RETURN: none |
| 178 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 179 | * DESCRIPTION: Free global memory |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | * |
| 181 | ******************************************************************************/ |
| 182 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 183 | static void |
| 184 | acpi_ut_terminate ( |
| 185 | void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | { |
| 187 | struct acpi_gpe_block_info *gpe_block; |
| 188 | struct acpi_gpe_block_info *next_gpe_block; |
| 189 | struct acpi_gpe_xrupt_info *gpe_xrupt_info; |
| 190 | struct acpi_gpe_xrupt_info *next_gpe_xrupt_info; |
| 191 | |
| 192 | |
| 193 | ACPI_FUNCTION_TRACE ("ut_terminate"); |
| 194 | |
| 195 | |
| 196 | /* Free global tables, etc. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | /* Free global GPE blocks and related info structures */ |
| 198 | |
| 199 | gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; |
| 200 | while (gpe_xrupt_info) { |
| 201 | gpe_block = gpe_xrupt_info->gpe_block_list_head; |
| 202 | while (gpe_block) { |
| 203 | next_gpe_block = gpe_block->next; |
| 204 | ACPI_MEM_FREE (gpe_block->event_info); |
| 205 | ACPI_MEM_FREE (gpe_block->register_info); |
| 206 | ACPI_MEM_FREE (gpe_block); |
| 207 | |
| 208 | gpe_block = next_gpe_block; |
| 209 | } |
| 210 | next_gpe_xrupt_info = gpe_xrupt_info->next; |
| 211 | ACPI_MEM_FREE (gpe_xrupt_info); |
| 212 | gpe_xrupt_info = next_gpe_xrupt_info; |
| 213 | } |
| 214 | |
| 215 | return_VOID; |
| 216 | } |
| 217 | |
| 218 | |
| 219 | /******************************************************************************* |
| 220 | * |
| 221 | * FUNCTION: acpi_ut_subsystem_shutdown |
| 222 | * |
| 223 | * PARAMETERS: none |
| 224 | * |
| 225 | * RETURN: none |
| 226 | * |
| 227 | * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex |
| 228 | * objects here -- because the AML debugger may be still running. |
| 229 | * |
| 230 | ******************************************************************************/ |
| 231 | |
| 232 | void |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 233 | acpi_ut_subsystem_shutdown ( |
| 234 | void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | { |
| 236 | |
| 237 | ACPI_FUNCTION_TRACE ("ut_subsystem_shutdown"); |
| 238 | |
| 239 | /* Just exit if subsystem is already shutdown */ |
| 240 | |
| 241 | if (acpi_gbl_shutdown) { |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 242 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, |
| 243 | "ACPI Subsystem is already terminated\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | return_VOID; |
| 245 | } |
| 246 | |
| 247 | /* Subsystem appears active, go ahead and shut it down */ |
| 248 | |
| 249 | acpi_gbl_shutdown = TRUE; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 250 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, |
| 251 | "Shutting down ACPI Subsystem...\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
| 253 | /* Close the acpi_event Handling */ |
| 254 | |
| 255 | acpi_ev_terminate (); |
| 256 | |
| 257 | /* Close the Namespace */ |
| 258 | |
| 259 | acpi_ns_terminate (); |
| 260 | |
| 261 | /* Close the globals */ |
| 262 | |
| 263 | acpi_ut_terminate (); |
| 264 | |
| 265 | /* Purge the local caches */ |
| 266 | |
| 267 | (void) acpi_purge_cached_objects (); |
| 268 | |
| 269 | /* Debug only - display leftover memory allocation, if any */ |
| 270 | |
| 271 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
| 272 | acpi_ut_dump_allocations (ACPI_UINT32_MAX, NULL); |
| 273 | #endif |
| 274 | |
| 275 | return_VOID; |
| 276 | } |
| 277 | |
| 278 | |