1 /****************************************************************************** 2 * 3 * Module Name: utinit - Common ACPI subsystem initialization 4 * $Revision: 1.131 $ 5 * 6 *****************************************************************************/ 7 8 /****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999 - 2006, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117 118 #define __UTINIT_C__ 119 120 #include "acpi.h" 121 #include "acnamesp.h" 122 #include "acevents.h" 123 124 #define _COMPONENT ACPI_UTILITIES 125 ACPI_MODULE_NAME ("utinit") 126 127 /* Local prototypes */ 128 129 static void 130 AcpiUtFadtRegisterError ( 131 char *RegisterName, 132 UINT32 Value, 133 UINT8 Offset); 134 135 static void AcpiUtTerminate ( 136 void); 137 138 139 /******************************************************************************* 140 * 141 * FUNCTION: AcpiUtFadtRegisterError 142 * 143 * PARAMETERS: RegisterName - Pointer to string identifying register 144 * Value - Actual register contents value 145 * Offset - Byte offset in the FADT 146 * 147 * RETURN: AE_BAD_VALUE 148 * 149 * DESCRIPTION: Display failure message 150 * 151 ******************************************************************************/ 152 153 static void 154 AcpiUtFadtRegisterError ( 155 char *RegisterName, 156 UINT32 Value, 157 UINT8 Offset) 158 { 159 160 ACPI_WARNING ((AE_INFO, 161 "Invalid FADT value %s=%X at offset %X FADT=%p", 162 RegisterName, Value, Offset, AcpiGbl_FADT)); 163 } 164 165 166 /****************************************************************************** 167 * 168 * FUNCTION: AcpiUtValidateFadt 169 * 170 * PARAMETERS: None 171 * 172 * RETURN: Status 173 * 174 * DESCRIPTION: Validate various ACPI registers in the FADT 175 * 176 ******************************************************************************/ 177 178 ACPI_STATUS 179 AcpiUtValidateFadt ( 180 void) 181 { 182 183 /* 184 * Verify Fixed ACPI Description Table fields, 185 * but don't abort on any problems, just display error 186 */ 187 if (AcpiGbl_FADT->Pm1EvtLen < 4) 188 { 189 AcpiUtFadtRegisterError ("PM1_EVT_LEN", 190 (UINT32) AcpiGbl_FADT->Pm1EvtLen, 191 ACPI_FADT_OFFSET (Pm1EvtLen)); 192 } 193 194 if (!AcpiGbl_FADT->Pm1CntLen) 195 { 196 AcpiUtFadtRegisterError ("PM1_CNT_LEN", 0, 197 ACPI_FADT_OFFSET (Pm1CntLen)); 198 } 199 200 if (!ACPI_VALID_ADDRESS (AcpiGbl_FADT->XPm1aEvtBlk.Address)) 201 { 202 AcpiUtFadtRegisterError ("X_PM1a_EVT_BLK", 0, 203 ACPI_FADT_OFFSET (XPm1aEvtBlk.Address)); 204 } 205 206 if (!ACPI_VALID_ADDRESS (AcpiGbl_FADT->XPm1aCntBlk.Address)) 207 { 208 AcpiUtFadtRegisterError ("X_PM1a_CNT_BLK", 0, 209 ACPI_FADT_OFFSET (XPm1aCntBlk.Address)); 210 } 211 212 if (!ACPI_VALID_ADDRESS (AcpiGbl_FADT->XPmTmrBlk.Address)) 213 { 214 AcpiUtFadtRegisterError ("X_PM_TMR_BLK", 0, 215 ACPI_FADT_OFFSET (XPmTmrBlk.Address)); 216 } 217 218 if ((ACPI_VALID_ADDRESS (AcpiGbl_FADT->XPm2CntBlk.Address) && 219 !AcpiGbl_FADT->Pm2CntLen)) 220 { 221 AcpiUtFadtRegisterError ("PM2_CNT_LEN", 222 (UINT32) AcpiGbl_FADT->Pm2CntLen, 223 ACPI_FADT_OFFSET (Pm2CntLen)); 224 } 225 226 if (AcpiGbl_FADT->PmTmLen < 4) 227 { 228 AcpiUtFadtRegisterError ("PM_TM_LEN", 229 (UINT32) AcpiGbl_FADT->PmTmLen, 230 ACPI_FADT_OFFSET (PmTmLen)); 231 } 232 233 /* Length of GPE blocks must be a multiple of 2 */ 234 235 if (ACPI_VALID_ADDRESS (AcpiGbl_FADT->XGpe0Blk.Address) && 236 (AcpiGbl_FADT->Gpe0BlkLen & 1)) 237 { 238 AcpiUtFadtRegisterError ("(x)GPE0_BLK_LEN", 239 (UINT32) AcpiGbl_FADT->Gpe0BlkLen, 240 ACPI_FADT_OFFSET (Gpe0BlkLen)); 241 } 242 243 if (ACPI_VALID_ADDRESS (AcpiGbl_FADT->XGpe1Blk.Address) && 244 (AcpiGbl_FADT->Gpe1BlkLen & 1)) 245 { 246 AcpiUtFadtRegisterError ("(x)GPE1_BLK_LEN", 247 (UINT32) AcpiGbl_FADT->Gpe1BlkLen, 248 ACPI_FADT_OFFSET (Gpe1BlkLen)); 249 } 250 251 return (AE_OK); 252 } 253 254 255 /****************************************************************************** 256 * 257 * FUNCTION: AcpiUtTerminate 258 * 259 * PARAMETERS: none 260 * 261 * RETURN: none 262 * 263 * DESCRIPTION: Free global memory 264 * 265 ******************************************************************************/ 266 267 static void 268 AcpiUtTerminate ( 269 void) 270 { 271 ACPI_GPE_BLOCK_INFO *GpeBlock; 272 ACPI_GPE_BLOCK_INFO *NextGpeBlock; 273 ACPI_GPE_XRUPT_INFO *GpeXruptInfo; 274 ACPI_GPE_XRUPT_INFO *NextGpeXruptInfo; 275 276 277 ACPI_FUNCTION_TRACE (UtTerminate); 278 279 280 /* Free global tables, etc. */ 281 /* Free global GPE blocks and related info structures */ 282 283 GpeXruptInfo = AcpiGbl_GpeXruptListHead; 284 while (GpeXruptInfo) 285 { 286 GpeBlock = GpeXruptInfo->GpeBlockListHead; 287 while (GpeBlock) 288 { 289 NextGpeBlock = GpeBlock->Next; 290 ACPI_FREE (GpeBlock->EventInfo); 291 ACPI_FREE (GpeBlock->RegisterInfo); 292 ACPI_FREE (GpeBlock); 293 294 GpeBlock = NextGpeBlock; 295 } 296 NextGpeXruptInfo = GpeXruptInfo->Next; 297 ACPI_FREE (GpeXruptInfo); 298 GpeXruptInfo = NextGpeXruptInfo; 299 } 300 301 return_VOID; 302 } 303 304 305 /******************************************************************************* 306 * 307 * FUNCTION: AcpiUtSubsystemShutdown 308 * 309 * PARAMETERS: none 310 * 311 * RETURN: none 312 * 313 * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex 314 * objects here -- because the AML debugger may be still running. 315 * 316 ******************************************************************************/ 317 318 void 319 AcpiUtSubsystemShutdown ( 320 void) 321 { 322 323 ACPI_FUNCTION_TRACE (UtSubsystemShutdown); 324 325 /* Just exit if subsystem is already shutdown */ 326 327 if (AcpiGbl_Shutdown) 328 { 329 ACPI_ERROR ((AE_INFO, 330 "ACPI Subsystem is already terminated")); 331 return_VOID; 332 } 333 334 /* Subsystem appears active, go ahead and shut it down */ 335 336 AcpiGbl_Shutdown = TRUE; 337 AcpiGbl_StartupFlags = 0; 338 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, 339 "Shutting down ACPI Subsystem\n")); 340 341 /* Close the AcpiEvent Handling */ 342 343 AcpiEvTerminate (); 344 345 /* Close the Namespace */ 346 347 AcpiNsTerminate (); 348 349 /* Close the globals */ 350 351 AcpiUtTerminate (); 352 353 /* Purge the local caches */ 354 355 (void) AcpiUtDeleteCaches (); 356 return_VOID; 357 } 358 359 360