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1498 | serge | 1 | /****************************************************************************** |
2 | * |
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3 | * Module Name: utxface - External interfaces for "global" ACPI functions |
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4 | * |
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5 | *****************************************************************************/ |
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6 | |||
7 | /****************************************************************************** |
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8 | * |
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9 | * 1. Copyright Notice |
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10 | * |
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11 | * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp. |
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12 | * All rights reserved. |
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13 | * |
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14 | * 2. License |
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15 | * |
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16 | * 2.1. This is your license from Intel Corp. under its intellectual property |
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17 | * rights. You may have additional license terms from the party that provided |
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18 | * you this software, covering your right to use that party's intellectual |
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19 | * property rights. |
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20 | * |
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21 | * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
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22 | * copy of the source code appearing in this file ("Covered Code") an |
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23 | * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
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24 | * base code distributed originally by Intel ("Original Intel Code") to copy, |
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25 | * make derivatives, distribute, use and display any portion of the Covered |
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26 | * Code in any form, with the right to sublicense such rights; and |
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27 | * |
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28 | * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
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29 | * license (with the right to sublicense), under only those claims of Intel |
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30 | * patents that are infringed by the Original Intel Code, to make, use, sell, |
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31 | * offer to sell, and import the Covered Code and derivative works thereof |
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32 | * solely to the minimum extent necessary to exercise the above copyright |
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33 | * license, and in no event shall the patent license extend to any additions |
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34 | * to or modifications of the Original Intel Code. No other license or right |
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35 | * is granted directly or by implication, estoppel or otherwise; |
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36 | * |
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37 | * The above copyright and patent license is granted only if the following |
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38 | * conditions are met: |
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39 | * |
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40 | * 3. Conditions |
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41 | * |
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42 | * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
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43 | * Redistribution of source code of any substantial portion of the Covered |
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44 | * Code or modification with rights to further distribute source must include |
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45 | * the above Copyright Notice, the above License, this list of Conditions, |
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46 | * and the following Disclaimer and Export Compliance provision. In addition, |
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47 | * Licensee must cause all Covered Code to which Licensee contributes to |
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48 | * contain a file documenting the changes Licensee made to create that Covered |
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49 | * Code and the date of any change. Licensee must include in that file the |
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50 | * documentation of any changes made by any predecessor Licensee. Licensee |
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51 | * must include a prominent statement that the modification is derived, |
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52 | * directly or indirectly, from Original Intel Code. |
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53 | * |
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54 | * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
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55 | * Redistribution of source code of any substantial portion of the Covered |
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56 | * Code or modification without rights to further distribute source must |
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57 | * include the following Disclaimer and Export Compliance provision in the |
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58 | * documentation and/or other materials provided with distribution. In |
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59 | * addition, Licensee may not authorize further sublicense of source of any |
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60 | * portion of the Covered Code, and must include terms to the effect that the |
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61 | * license from Licensee to its licensee is limited to the intellectual |
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62 | * property embodied in the software Licensee provides to its licensee, and |
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63 | * not to intellectual property embodied in modifications its licensee may |
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64 | * make. |
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65 | * |
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66 | * 3.3. Redistribution of Executable. Redistribution in executable form of any |
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67 | * substantial portion of the Covered Code or modification must reproduce the |
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68 | * above Copyright Notice, and the following Disclaimer and Export Compliance |
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69 | * provision in the documentation and/or other materials provided with the |
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70 | * distribution. |
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71 | * |
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72 | * 3.4. Intel retains all right, title, and interest in and to the Original |
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73 | * Intel Code. |
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74 | * |
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75 | * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
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76 | * Intel shall be used in advertising or otherwise to promote the sale, use or |
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77 | * other dealings in products derived from or relating to the Covered Code |
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78 | * without prior written authorization from Intel. |
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79 | * |
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80 | * 4. Disclaimer and Export Compliance |
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81 | * |
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82 | * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
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83 | * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
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84 | * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
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85 | * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
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86 | * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
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87 | * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
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88 | * PARTICULAR PURPOSE. |
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89 | * |
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90 | * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
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91 | * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
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92 | * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
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93 | * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
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94 | * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
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95 | * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
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96 | * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
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97 | * LIMITED REMEDY. |
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98 | * |
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99 | * 4.3. Licensee shall not export, either directly or indirectly, any of this |
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100 | * software or system incorporating such software without first obtaining any |
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101 | * required license or other approval from the U. S. Department of Commerce or |
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102 | * any other agency or department of the United States Government. In the |
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103 | * event Licensee exports any such software from the United States or |
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104 | * re-exports any such software from a foreign destination, Licensee shall |
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105 | * ensure that the distribution and export/re-export of the software is in |
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106 | * compliance with all laws, regulations, orders, or other restrictions of the |
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107 | * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
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108 | * any of its subsidiaries will export/re-export any technical data, process, |
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109 | * software, or service, directly or indirectly, to any country for which the |
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110 | * United States government or any agency thereof requires an export license, |
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111 | * other governmental approval, or letter of assurance, without first obtaining |
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112 | * such license, approval or letter. |
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113 | * |
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114 | *****************************************************************************/ |
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115 | |||
116 | |||
117 | #define __UTXFACE_C__ |
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118 | |||
119 | #include "acpi.h" |
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120 | #include "accommon.h" |
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121 | #include "acevents.h" |
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122 | #include "acnamesp.h" |
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123 | #include "acdebug.h" |
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124 | #include "actables.h" |
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125 | |||
126 | #define _COMPONENT ACPI_UTILITIES |
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127 | ACPI_MODULE_NAME ("utxface") |
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128 | |||
129 | |||
130 | #ifndef ACPI_ASL_COMPILER |
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131 | |||
132 | /******************************************************************************* |
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133 | * |
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134 | * FUNCTION: AcpiInitializeSubsystem |
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135 | * |
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136 | * PARAMETERS: None |
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137 | * |
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138 | * RETURN: Status |
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139 | * |
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140 | * DESCRIPTION: Initializes all global variables. This is the first function |
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141 | * called, so any early initialization belongs here. |
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142 | * |
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143 | ******************************************************************************/ |
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144 | |||
145 | ACPI_STATUS |
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146 | AcpiInitializeSubsystem ( |
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147 | void) |
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148 | { |
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149 | ACPI_STATUS Status; |
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150 | |||
151 | |||
152 | ACPI_FUNCTION_TRACE (AcpiInitializeSubsystem); |
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153 | |||
154 | |||
155 | AcpiGbl_StartupFlags = ACPI_SUBSYSTEM_INITIALIZE; |
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156 | ACPI_DEBUG_EXEC (AcpiUtInitStackPtrTrace ()); |
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157 | |||
158 | /* Initialize the OS-Dependent layer */ |
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159 | |||
160 | Status = AcpiOsInitialize (); |
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161 | if (ACPI_FAILURE (Status)) |
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162 | { |
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163 | ACPI_EXCEPTION ((AE_INFO, Status, "During OSL initialization")); |
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164 | return_ACPI_STATUS (Status); |
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165 | } |
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166 | |||
167 | /* Initialize all globals used by the subsystem */ |
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168 | |||
169 | Status = AcpiUtInitGlobals (); |
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170 | if (ACPI_FAILURE (Status)) |
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171 | { |
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172 | ACPI_EXCEPTION ((AE_INFO, Status, "During initialization of globals")); |
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173 | return_ACPI_STATUS (Status); |
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174 | } |
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175 | |||
176 | /* Create the default mutex objects */ |
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177 | |||
178 | Status = AcpiUtMutexInitialize (); |
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179 | if (ACPI_FAILURE (Status)) |
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180 | { |
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181 | ACPI_EXCEPTION ((AE_INFO, Status, "During Global Mutex creation")); |
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182 | return_ACPI_STATUS (Status); |
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183 | } |
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184 | |||
185 | /* |
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186 | * Initialize the namespace manager and |
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187 | * the root of the namespace tree |
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188 | */ |
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189 | Status = AcpiNsRootInitialize (); |
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190 | if (ACPI_FAILURE (Status)) |
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191 | { |
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192 | ACPI_EXCEPTION ((AE_INFO, Status, "During Namespace initialization")); |
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193 | return_ACPI_STATUS (Status); |
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194 | } |
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195 | |||
196 | /* If configured, initialize the AML debugger */ |
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197 | |||
198 | ACPI_DEBUGGER_EXEC (Status = AcpiDbInitialize ()); |
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199 | return_ACPI_STATUS (Status); |
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200 | } |
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201 | |||
202 | ACPI_EXPORT_SYMBOL (AcpiInitializeSubsystem) |
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203 | |||
204 | |||
205 | /******************************************************************************* |
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206 | * |
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207 | * FUNCTION: AcpiEnableSubsystem |
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208 | * |
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209 | * PARAMETERS: Flags - Init/enable Options |
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210 | * |
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211 | * RETURN: Status |
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212 | * |
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213 | * DESCRIPTION: Completes the subsystem initialization including hardware. |
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214 | * Puts system into ACPI mode if it isn't already. |
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215 | * |
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216 | ******************************************************************************/ |
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217 | |||
218 | ACPI_STATUS |
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219 | AcpiEnableSubsystem ( |
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220 | UINT32 Flags) |
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221 | { |
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222 | ACPI_STATUS Status = AE_OK; |
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223 | |||
224 | |||
225 | ACPI_FUNCTION_TRACE (AcpiEnableSubsystem); |
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226 | |||
227 | |||
228 | /* Enable ACPI mode */ |
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229 | |||
230 | if (!(Flags & ACPI_NO_ACPI_ENABLE)) |
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231 | { |
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232 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n")); |
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233 | |||
234 | AcpiGbl_OriginalMode = AcpiHwGetMode(); |
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235 | |||
236 | Status = AcpiEnable (); |
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237 | if (ACPI_FAILURE (Status)) |
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238 | { |
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239 | ACPI_WARNING ((AE_INFO, "AcpiEnable failed")); |
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240 | return_ACPI_STATUS (Status); |
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241 | } |
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242 | } |
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243 | |||
244 | /* |
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245 | * Obtain a permanent mapping for the FACS. This is required for the |
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246 | * Global Lock and the Firmware Waking Vector |
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247 | */ |
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248 | Status = AcpiTbInitializeFacs (); |
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249 | if (ACPI_FAILURE (Status)) |
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250 | { |
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251 | ACPI_WARNING ((AE_INFO, "Could not map the FACS table")); |
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252 | return_ACPI_STATUS (Status); |
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253 | } |
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254 | |||
255 | /* |
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256 | * Install the default OpRegion handlers. These are installed unless |
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257 | * other handlers have already been installed via the |
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258 | * InstallAddressSpaceHandler interface. |
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259 | */ |
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260 | if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT)) |
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261 | { |
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262 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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263 | "[Init] Installing default address space handlers\n")); |
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264 | |||
265 | Status = AcpiEvInstallRegionHandlers (); |
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266 | if (ACPI_FAILURE (Status)) |
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267 | { |
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268 | return_ACPI_STATUS (Status); |
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269 | } |
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270 | } |
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271 | |||
272 | /* |
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273 | * Initialize ACPI Event handling (Fixed and General Purpose) |
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274 | * |
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275 | * Note1: We must have the hardware and events initialized before we can |
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276 | * execute any control methods safely. Any control method can require |
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277 | * ACPI hardware support, so the hardware must be fully initialized before |
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278 | * any method execution! |
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279 | * |
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280 | * Note2: Fixed events are initialized and enabled here. GPEs are |
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281 | * initialized, but cannot be enabled until after the hardware is |
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282 | * completely initialized (SCI and GlobalLock activated) and the various |
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283 | * initialization control methods are run (_REG, _STA, _INI) on the |
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284 | * entire namespace. |
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285 | */ |
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286 | if (!(Flags & ACPI_NO_EVENT_INIT)) |
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287 | { |
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288 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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289 | "[Init] Initializing ACPI events\n")); |
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290 | |||
291 | Status = AcpiEvInitializeEvents (); |
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292 | if (ACPI_FAILURE (Status)) |
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293 | { |
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294 | return_ACPI_STATUS (Status); |
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295 | } |
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296 | } |
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297 | |||
298 | /* |
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299 | * Install the SCI handler and Global Lock handler. This completes the |
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300 | * hardware initialization. |
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301 | */ |
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302 | if (!(Flags & ACPI_NO_HANDLER_INIT)) |
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303 | { |
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304 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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305 | "[Init] Installing SCI/GL handlers\n")); |
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306 | |||
307 | Status = AcpiEvInstallXruptHandlers (); |
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308 | if (ACPI_FAILURE (Status)) |
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309 | { |
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310 | return_ACPI_STATUS (Status); |
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311 | } |
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312 | } |
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313 | |||
314 | return_ACPI_STATUS (Status); |
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315 | } |
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316 | |||
317 | ACPI_EXPORT_SYMBOL (AcpiEnableSubsystem) |
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318 | |||
319 | |||
320 | /******************************************************************************* |
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321 | * |
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322 | * FUNCTION: AcpiInitializeObjects |
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323 | * |
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324 | * PARAMETERS: Flags - Init/enable Options |
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325 | * |
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326 | * RETURN: Status |
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327 | * |
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328 | * DESCRIPTION: Completes namespace initialization by initializing device |
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329 | * objects and executing AML code for Regions, buffers, etc. |
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330 | * |
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331 | ******************************************************************************/ |
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332 | |||
333 | ACPI_STATUS |
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334 | AcpiInitializeObjects ( |
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335 | UINT32 Flags) |
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336 | { |
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337 | ACPI_STATUS Status = AE_OK; |
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338 | |||
339 | |||
340 | ACPI_FUNCTION_TRACE (AcpiInitializeObjects); |
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341 | |||
342 | |||
343 | /* |
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344 | * Run all _REG methods |
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345 | * |
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346 | * Note: Any objects accessed by the _REG methods will be automatically |
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347 | * initialized, even if they contain executable AML (see the call to |
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348 | * AcpiNsInitializeObjects below). |
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349 | */ |
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350 | if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT)) |
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351 | { |
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352 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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353 | "[Init] Executing _REG OpRegion methods\n")); |
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354 | |||
355 | Status = AcpiEvInitializeOpRegions (); |
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356 | if (ACPI_FAILURE (Status)) |
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357 | { |
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358 | return_ACPI_STATUS (Status); |
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359 | } |
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360 | } |
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361 | |||
362 | /* |
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363 | * Execute any module-level code that was detected during the table load |
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364 | * phase. Although illegal since ACPI 2.0, there are many machines that |
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365 | * contain this type of code. Each block of detected executable AML code |
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366 | * outside of any control method is wrapped with a temporary control |
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367 | * method object and placed on a global list. The methods on this list |
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368 | * are executed below. |
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369 | */ |
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370 | AcpiNsExecModuleCodeList (); |
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371 | |||
372 | /* |
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373 | * Initialize the objects that remain uninitialized. This runs the |
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374 | * executable AML that may be part of the declaration of these objects: |
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375 | * OperationRegions, BufferFields, Buffers, and Packages. |
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376 | */ |
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377 | if (!(Flags & ACPI_NO_OBJECT_INIT)) |
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378 | { |
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379 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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380 | "[Init] Completing Initialization of ACPI Objects\n")); |
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381 | |||
382 | Status = AcpiNsInitializeObjects (); |
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383 | if (ACPI_FAILURE (Status)) |
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384 | { |
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385 | return_ACPI_STATUS (Status); |
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386 | } |
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387 | } |
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388 | |||
389 | /* |
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390 | * Initialize all device objects in the namespace. This runs the device |
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391 | * _STA and _INI methods. |
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392 | */ |
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393 | if (!(Flags & ACPI_NO_DEVICE_INIT)) |
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394 | { |
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395 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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396 | "[Init] Initializing ACPI Devices\n")); |
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397 | |||
398 | Status = AcpiNsInitializeDevices (); |
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399 | if (ACPI_FAILURE (Status)) |
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400 | { |
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401 | return_ACPI_STATUS (Status); |
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402 | } |
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403 | } |
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404 | |||
405 | /* |
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406 | * Initialize the GPE blocks defined in the FADT (GPE block 0 and 1). |
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407 | * The runtime GPEs are enabled here. |
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408 | * |
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409 | * This is where the _PRW methods are executed for the GPEs. These |
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410 | * methods can only be executed after the SCI and Global Lock handlers are |
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411 | * installed and initialized. |
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412 | * |
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413 | * GPEs can only be enabled after the _REG, _STA, and _INI methods have |
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414 | * been run. This ensures that all Operation Regions and all Devices have |
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415 | * been initialized and are ready. |
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416 | */ |
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417 | if (!(Flags & ACPI_NO_EVENT_INIT)) |
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418 | { |
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419 | Status = AcpiEvInstallFadtGpes (); |
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420 | if (ACPI_FAILURE (Status)) |
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421 | { |
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422 | return (Status); |
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423 | } |
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424 | } |
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425 | |||
426 | /* |
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427 | * Empty the caches (delete the cached objects) on the assumption that |
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428 | * the table load filled them up more than they will be at runtime -- |
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429 | * thus wasting non-paged memory. |
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430 | */ |
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431 | Status = AcpiPurgeCachedObjects (); |
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432 | |||
433 | AcpiGbl_StartupFlags |= ACPI_INITIALIZED_OK; |
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434 | return_ACPI_STATUS (Status); |
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435 | } |
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436 | |||
437 | ACPI_EXPORT_SYMBOL (AcpiInitializeObjects) |
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438 | |||
439 | |||
440 | #endif |
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441 | |||
442 | /******************************************************************************* |
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443 | * |
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444 | * FUNCTION: AcpiTerminate |
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445 | * |
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446 | * PARAMETERS: None |
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447 | * |
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448 | * RETURN: Status |
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449 | * |
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450 | * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources. |
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451 | * |
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452 | ******************************************************************************/ |
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453 | |||
454 | ACPI_STATUS |
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455 | AcpiTerminate ( |
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456 | void) |
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457 | { |
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458 | ACPI_STATUS Status; |
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459 | |||
460 | |||
461 | ACPI_FUNCTION_TRACE (AcpiTerminate); |
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462 | |||
463 | |||
464 | /* Just exit if subsystem is already shutdown */ |
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465 | |||
466 | if (AcpiGbl_Shutdown) |
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467 | { |
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468 | ACPI_ERROR ((AE_INFO, "ACPI Subsystem is already terminated")); |
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469 | return_ACPI_STATUS (AE_OK); |
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470 | } |
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471 | |||
472 | /* Subsystem appears active, go ahead and shut it down */ |
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473 | |||
474 | AcpiGbl_Shutdown = TRUE; |
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475 | AcpiGbl_StartupFlags = 0; |
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476 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); |
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477 | |||
478 | /* Terminate the AML Debugger if present */ |
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479 | |||
480 | ACPI_DEBUGGER_EXEC (AcpiGbl_DbTerminateThreads = TRUE); |
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481 | |||
482 | /* Shutdown and free all resources */ |
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483 | |||
484 | AcpiUtSubsystemShutdown (); |
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485 | |||
486 | /* Free the mutex objects */ |
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487 | |||
488 | AcpiUtMutexTerminate (); |
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489 | |||
490 | |||
491 | #ifdef ACPI_DEBUGGER |
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492 | |||
493 | /* Shut down the debugger */ |
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494 | |||
495 | AcpiDbTerminate (); |
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496 | #endif |
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497 | |||
498 | /* Now we can shutdown the OS-dependent layer */ |
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499 | |||
500 | Status = AcpiOsTerminate (); |
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501 | return_ACPI_STATUS (Status); |
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502 | } |
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503 | |||
504 | ACPI_EXPORT_SYMBOL (AcpiTerminate) |
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505 | |||
506 | |||
507 | #ifndef ACPI_ASL_COMPILER |
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508 | /******************************************************************************* |
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509 | * |
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510 | * FUNCTION: AcpiSubsystemStatus |
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511 | * |
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512 | * PARAMETERS: None |
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513 | * |
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514 | * RETURN: Status of the ACPI subsystem |
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515 | * |
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516 | * DESCRIPTION: Other drivers that use the ACPI subsystem should call this |
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517 | * before making any other calls, to ensure the subsystem |
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518 | * initialized successfully. |
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519 | * |
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520 | ******************************************************************************/ |
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521 | |||
522 | ACPI_STATUS |
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523 | AcpiSubsystemStatus ( |
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524 | void) |
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525 | { |
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526 | |||
527 | if (AcpiGbl_StartupFlags & ACPI_INITIALIZED_OK) |
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528 | { |
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529 | return (AE_OK); |
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530 | } |
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531 | else |
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532 | { |
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533 | return (AE_ERROR); |
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534 | } |
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535 | } |
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536 | |||
537 | ACPI_EXPORT_SYMBOL (AcpiSubsystemStatus) |
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538 | |||
539 | |||
540 | /******************************************************************************* |
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541 | * |
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542 | * FUNCTION: AcpiGetSystemInfo |
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543 | * |
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544 | * PARAMETERS: OutBuffer - A buffer to receive the resources for the |
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545 | * device |
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546 | * |
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547 | * RETURN: Status - the status of the call |
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548 | * |
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549 | * DESCRIPTION: This function is called to get information about the current |
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550 | * state of the ACPI subsystem. It will return system information |
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551 | * in the OutBuffer. |
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552 | * |
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553 | * If the function fails an appropriate status will be returned |
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554 | * and the value of OutBuffer is undefined. |
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555 | * |
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556 | ******************************************************************************/ |
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557 | |||
558 | ACPI_STATUS |
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559 | AcpiGetSystemInfo ( |
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560 | ACPI_BUFFER *OutBuffer) |
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561 | { |
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562 | ACPI_SYSTEM_INFO *InfoPtr; |
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563 | ACPI_STATUS Status; |
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564 | |||
565 | |||
566 | ACPI_FUNCTION_TRACE (AcpiGetSystemInfo); |
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567 | |||
568 | |||
569 | /* Parameter validation */ |
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570 | |||
571 | Status = AcpiUtValidateBuffer (OutBuffer); |
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572 | if (ACPI_FAILURE (Status)) |
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573 | { |
||
574 | return_ACPI_STATUS (Status); |
||
575 | } |
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576 | |||
577 | /* Validate/Allocate/Clear caller buffer */ |
||
578 | |||
579 | Status = AcpiUtInitializeBuffer (OutBuffer, sizeof (ACPI_SYSTEM_INFO)); |
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580 | if (ACPI_FAILURE (Status)) |
||
581 | { |
||
582 | return_ACPI_STATUS (Status); |
||
583 | } |
||
584 | |||
585 | /* |
||
586 | * Populate the return buffer |
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587 | */ |
||
588 | InfoPtr = (ACPI_SYSTEM_INFO *) OutBuffer->Pointer; |
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589 | |||
590 | InfoPtr->AcpiCaVersion = ACPI_CA_VERSION; |
||
591 | |||
592 | /* System flags (ACPI capabilities) */ |
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593 | |||
594 | InfoPtr->Flags = ACPI_SYS_MODE_ACPI; |
||
595 | |||
596 | /* Timer resolution - 24 or 32 bits */ |
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597 | |||
598 | if (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) |
||
599 | { |
||
600 | InfoPtr->TimerResolution = 24; |
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601 | } |
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602 | else |
||
603 | { |
||
604 | InfoPtr->TimerResolution = 32; |
||
605 | } |
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606 | |||
607 | /* Clear the reserved fields */ |
||
608 | |||
609 | InfoPtr->Reserved1 = 0; |
||
610 | InfoPtr->Reserved2 = 0; |
||
611 | |||
612 | /* Current debug levels */ |
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613 | |||
614 | InfoPtr->DebugLayer = AcpiDbgLayer; |
||
615 | InfoPtr->DebugLevel = AcpiDbgLevel; |
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616 | |||
617 | return_ACPI_STATUS (AE_OK); |
||
618 | } |
||
619 | |||
620 | ACPI_EXPORT_SYMBOL (AcpiGetSystemInfo) |
||
621 | |||
622 | |||
623 | /******************************************************************************* |
||
624 | * |
||
625 | * FUNCTION: AcpiGetStatistics |
||
626 | * |
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627 | * PARAMETERS: Stats - Where the statistics are returned |
||
628 | * |
||
629 | * RETURN: Status - the status of the call |
||
630 | * |
||
631 | * DESCRIPTION: Get the contents of the various system counters |
||
632 | * |
||
633 | ******************************************************************************/ |
||
634 | |||
635 | ACPI_STATUS |
||
636 | AcpiGetStatistics ( |
||
637 | ACPI_STATISTICS *Stats) |
||
638 | { |
||
639 | ACPI_FUNCTION_TRACE (AcpiGetStatistics); |
||
640 | |||
641 | |||
642 | /* Parameter validation */ |
||
643 | |||
644 | if (!Stats) |
||
645 | { |
||
646 | return_ACPI_STATUS (AE_BAD_PARAMETER); |
||
647 | } |
||
648 | |||
649 | /* Various interrupt-based event counters */ |
||
650 | |||
651 | Stats->SciCount = AcpiSciCount; |
||
652 | Stats->GpeCount = AcpiGpeCount; |
||
653 | |||
654 | ACPI_MEMCPY (Stats->FixedEventCount, AcpiFixedEventCount, |
||
655 | sizeof (AcpiFixedEventCount)); |
||
656 | |||
657 | |||
658 | /* Other counters */ |
||
659 | |||
660 | Stats->MethodCount = AcpiMethodCount; |
||
661 | |||
662 | return_ACPI_STATUS (AE_OK); |
||
663 | } |
||
664 | |||
665 | ACPI_EXPORT_SYMBOL (AcpiGetStatistics) |
||
666 | |||
667 | |||
668 | /***************************************************************************** |
||
669 | * |
||
670 | * FUNCTION: AcpiInstallInitializationHandler |
||
671 | * |
||
672 | * PARAMETERS: Handler - Callback procedure |
||
673 | * Function - Not (currently) used, see below |
||
674 | * |
||
675 | * RETURN: Status |
||
676 | * |
||
677 | * DESCRIPTION: Install an initialization handler |
||
678 | * |
||
679 | * TBD: When a second function is added, must save the Function also. |
||
680 | * |
||
681 | ****************************************************************************/ |
||
682 | |||
683 | ACPI_STATUS |
||
684 | AcpiInstallInitializationHandler ( |
||
685 | ACPI_INIT_HANDLER Handler, |
||
686 | UINT32 Function) |
||
687 | { |
||
688 | |||
689 | if (!Handler) |
||
690 | { |
||
691 | return (AE_BAD_PARAMETER); |
||
692 | } |
||
693 | |||
694 | if (AcpiGbl_InitHandler) |
||
695 | { |
||
696 | return (AE_ALREADY_EXISTS); |
||
697 | } |
||
698 | |||
699 | AcpiGbl_InitHandler = Handler; |
||
700 | return AE_OK; |
||
701 | } |
||
702 | |||
703 | ACPI_EXPORT_SYMBOL (AcpiInstallInitializationHandler) |
||
704 | |||
705 | |||
706 | /***************************************************************************** |
||
707 | * |
||
708 | * FUNCTION: AcpiPurgeCachedObjects |
||
709 | * |
||
710 | * PARAMETERS: None |
||
711 | * |
||
712 | * RETURN: Status |
||
713 | * |
||
714 | * DESCRIPTION: Empty all caches (delete the cached objects) |
||
715 | * |
||
716 | ****************************************************************************/ |
||
717 | |||
718 | ACPI_STATUS |
||
719 | AcpiPurgeCachedObjects ( |
||
720 | void) |
||
721 | { |
||
722 | ACPI_FUNCTION_TRACE (AcpiPurgeCachedObjects); |
||
723 | |||
724 | (void) AcpiOsPurgeCache (AcpiGbl_StateCache); |
||
725 | (void) AcpiOsPurgeCache (AcpiGbl_OperandCache); |
||
726 | (void) AcpiOsPurgeCache (AcpiGbl_PsNodeCache); |
||
727 | (void) AcpiOsPurgeCache (AcpiGbl_PsNodeExtCache); |
||
728 | return_ACPI_STATUS (AE_OK); |
||
729 | } |
||
730 | |||
731 | ACPI_EXPORT_SYMBOL (AcpiPurgeCachedObjects) |
||
732 | |||
733 | #endif /* ACPI_ASL_COMPILER */ |
||
734 |