1 /******************************************************************************* 2 * 3 * Module Name: utexcep - Exception code support 4 * 5 ******************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2015, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 *****************************************************************************/ 115 116 #define EXPORT_ACPI_INTERFACES 117 118 #define ACPI_DEFINE_EXCEPTION_TABLE 119 #include "acpi.h" 120 #include "accommon.h" 121 122 123 #define _COMPONENT ACPI_UTILITIES 124 ACPI_MODULE_NAME ("utexcep") 125 126 127 /******************************************************************************* 128 * 129 * FUNCTION: AcpiFormatException 130 * 131 * PARAMETERS: Status - The ACPI_STATUS code to be formatted 132 * 133 * RETURN: A string containing the exception text. A valid pointer is 134 * always returned. 135 * 136 * DESCRIPTION: This function translates an ACPI exception into an ASCII 137 * string. Returns "unknown status" string for invalid codes. 138 * 139 ******************************************************************************/ 140 141 const char * 142 AcpiFormatException ( 143 ACPI_STATUS Status) 144 { 145 const ACPI_EXCEPTION_INFO *Exception; 146 147 148 ACPI_FUNCTION_ENTRY (); 149 150 151 Exception = AcpiUtValidateException (Status); 152 if (!Exception) 153 { 154 /* Exception code was not recognized */ 155 156 ACPI_ERROR ((AE_INFO, 157 "Unknown exception code: 0x%8.8X", Status)); 158 159 return ("UNKNOWN_STATUS_CODE"); 160 } 161 162 return (Exception->Name); 163 } 164 165 ACPI_EXPORT_SYMBOL (AcpiFormatException) 166 167 168 /******************************************************************************* 169 * 170 * FUNCTION: AcpiUtValidateException 171 * 172 * PARAMETERS: Status - The ACPI_STATUS code to be formatted 173 * 174 * RETURN: A string containing the exception text. NULL if exception is 175 * not valid. 176 * 177 * DESCRIPTION: This function validates and translates an ACPI exception into 178 * an ASCII string. 179 * 180 ******************************************************************************/ 181 182 const ACPI_EXCEPTION_INFO * 183 AcpiUtValidateException ( 184 ACPI_STATUS Status) 185 { 186 UINT32 SubStatus; 187 const ACPI_EXCEPTION_INFO *Exception = NULL; 188 189 190 ACPI_FUNCTION_ENTRY (); 191 192 193 /* 194 * Status is composed of two parts, a "type" and an actual code 195 */ 196 SubStatus = (Status & ~AE_CODE_MASK); 197 198 switch (Status & AE_CODE_MASK) 199 { 200 case AE_CODE_ENVIRONMENTAL: 201 202 if (SubStatus <= AE_CODE_ENV_MAX) 203 { 204 Exception = &AcpiGbl_ExceptionNames_Env [SubStatus]; 205 } 206 break; 207 208 case AE_CODE_PROGRAMMER: 209 210 if (SubStatus <= AE_CODE_PGM_MAX) 211 { 212 Exception = &AcpiGbl_ExceptionNames_Pgm [SubStatus]; 213 } 214 break; 215 216 case AE_CODE_ACPI_TABLES: 217 218 if (SubStatus <= AE_CODE_TBL_MAX) 219 { 220 Exception = &AcpiGbl_ExceptionNames_Tbl [SubStatus]; 221 } 222 break; 223 224 case AE_CODE_AML: 225 226 if (SubStatus <= AE_CODE_AML_MAX) 227 { 228 Exception = &AcpiGbl_ExceptionNames_Aml [SubStatus]; 229 } 230 break; 231 232 case AE_CODE_CONTROL: 233 234 if (SubStatus <= AE_CODE_CTRL_MAX) 235 { 236 Exception = &AcpiGbl_ExceptionNames_Ctrl [SubStatus]; 237 } 238 break; 239 240 default: 241 242 break; 243 } 244 245 if (!Exception || !Exception->Name) 246 { 247 return (NULL); 248 } 249 250 return (Exception); 251 } 252