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Rev | Author | Line No. | Line |
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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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2216 | Serge | 11 | * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp. |
1498 | serge | 12 | * All rights reserved. |
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 | |||
2216 | Serge | 196 | /* Initialize the global OSI interfaces list with the static names */ |
197 | |||
198 | Status = AcpiUtInitializeInterfaces (); |
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199 | if (ACPI_FAILURE (Status)) |
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200 | { |
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201 | ACPI_EXCEPTION ((AE_INFO, Status, "During OSI interfaces initialization")); |
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202 | return_ACPI_STATUS (Status); |
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203 | } |
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204 | |||
1498 | serge | 205 | /* If configured, initialize the AML debugger */ |
206 | |||
207 | ACPI_DEBUGGER_EXEC (Status = AcpiDbInitialize ()); |
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208 | return_ACPI_STATUS (Status); |
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209 | } |
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210 | |||
211 | ACPI_EXPORT_SYMBOL (AcpiInitializeSubsystem) |
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212 | |||
213 | |||
214 | /******************************************************************************* |
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215 | * |
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216 | * FUNCTION: AcpiEnableSubsystem |
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217 | * |
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218 | * PARAMETERS: Flags - Init/enable Options |
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219 | * |
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220 | * RETURN: Status |
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221 | * |
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222 | * DESCRIPTION: Completes the subsystem initialization including hardware. |
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223 | * Puts system into ACPI mode if it isn't already. |
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224 | * |
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225 | ******************************************************************************/ |
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226 | |||
227 | ACPI_STATUS |
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228 | AcpiEnableSubsystem ( |
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229 | UINT32 Flags) |
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230 | { |
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231 | ACPI_STATUS Status = AE_OK; |
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232 | |||
233 | |||
234 | ACPI_FUNCTION_TRACE (AcpiEnableSubsystem); |
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235 | |||
236 | |||
237 | /* Enable ACPI mode */ |
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238 | |||
239 | if (!(Flags & ACPI_NO_ACPI_ENABLE)) |
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240 | { |
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241 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n")); |
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242 | |||
243 | AcpiGbl_OriginalMode = AcpiHwGetMode(); |
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244 | |||
245 | Status = AcpiEnable (); |
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246 | if (ACPI_FAILURE (Status)) |
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247 | { |
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248 | ACPI_WARNING ((AE_INFO, "AcpiEnable failed")); |
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249 | return_ACPI_STATUS (Status); |
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250 | } |
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251 | } |
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252 | |||
253 | /* |
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254 | * Obtain a permanent mapping for the FACS. This is required for the |
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255 | * Global Lock and the Firmware Waking Vector |
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256 | */ |
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257 | Status = AcpiTbInitializeFacs (); |
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258 | if (ACPI_FAILURE (Status)) |
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259 | { |
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260 | ACPI_WARNING ((AE_INFO, "Could not map the FACS table")); |
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261 | return_ACPI_STATUS (Status); |
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262 | } |
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263 | |||
264 | /* |
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265 | * Install the default OpRegion handlers. These are installed unless |
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266 | * other handlers have already been installed via the |
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267 | * InstallAddressSpaceHandler interface. |
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268 | */ |
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269 | if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT)) |
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270 | { |
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271 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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272 | "[Init] Installing default address space handlers\n")); |
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273 | |||
274 | Status = AcpiEvInstallRegionHandlers (); |
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275 | if (ACPI_FAILURE (Status)) |
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276 | { |
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277 | return_ACPI_STATUS (Status); |
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278 | } |
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279 | } |
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280 | |||
281 | /* |
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282 | * Initialize ACPI Event handling (Fixed and General Purpose) |
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283 | * |
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284 | * Note1: We must have the hardware and events initialized before we can |
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285 | * execute any control methods safely. Any control method can require |
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286 | * ACPI hardware support, so the hardware must be fully initialized before |
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287 | * any method execution! |
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288 | * |
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289 | * Note2: Fixed events are initialized and enabled here. GPEs are |
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290 | * initialized, but cannot be enabled until after the hardware is |
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291 | * completely initialized (SCI and GlobalLock activated) and the various |
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292 | * initialization control methods are run (_REG, _STA, _INI) on the |
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293 | * entire namespace. |
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294 | */ |
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295 | if (!(Flags & ACPI_NO_EVENT_INIT)) |
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296 | { |
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297 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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298 | "[Init] Initializing ACPI events\n")); |
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299 | |||
300 | Status = AcpiEvInitializeEvents (); |
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301 | if (ACPI_FAILURE (Status)) |
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302 | { |
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303 | return_ACPI_STATUS (Status); |
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304 | } |
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305 | } |
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306 | |||
307 | /* |
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308 | * Install the SCI handler and Global Lock handler. This completes the |
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309 | * hardware initialization. |
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310 | */ |
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311 | if (!(Flags & ACPI_NO_HANDLER_INIT)) |
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312 | { |
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313 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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314 | "[Init] Installing SCI/GL handlers\n")); |
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315 | |||
316 | Status = AcpiEvInstallXruptHandlers (); |
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317 | if (ACPI_FAILURE (Status)) |
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318 | { |
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319 | return_ACPI_STATUS (Status); |
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320 | } |
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321 | } |
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322 | |||
323 | return_ACPI_STATUS (Status); |
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324 | } |
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325 | |||
326 | ACPI_EXPORT_SYMBOL (AcpiEnableSubsystem) |
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327 | |||
328 | |||
329 | /******************************************************************************* |
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330 | * |
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331 | * FUNCTION: AcpiInitializeObjects |
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332 | * |
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333 | * PARAMETERS: Flags - Init/enable Options |
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334 | * |
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335 | * RETURN: Status |
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336 | * |
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337 | * DESCRIPTION: Completes namespace initialization by initializing device |
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338 | * objects and executing AML code for Regions, buffers, etc. |
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339 | * |
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340 | ******************************************************************************/ |
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341 | |||
342 | ACPI_STATUS |
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343 | AcpiInitializeObjects ( |
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344 | UINT32 Flags) |
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345 | { |
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346 | ACPI_STATUS Status = AE_OK; |
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347 | |||
348 | |||
349 | ACPI_FUNCTION_TRACE (AcpiInitializeObjects); |
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350 | |||
351 | |||
352 | /* |
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353 | * Run all _REG methods |
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354 | * |
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355 | * Note: Any objects accessed by the _REG methods will be automatically |
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356 | * initialized, even if they contain executable AML (see the call to |
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357 | * AcpiNsInitializeObjects below). |
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358 | */ |
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359 | if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT)) |
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360 | { |
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361 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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362 | "[Init] Executing _REG OpRegion methods\n")); |
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363 | |||
364 | Status = AcpiEvInitializeOpRegions (); |
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365 | if (ACPI_FAILURE (Status)) |
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366 | { |
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367 | return_ACPI_STATUS (Status); |
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368 | } |
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369 | } |
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370 | |||
371 | /* |
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372 | * Execute any module-level code that was detected during the table load |
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373 | * phase. Although illegal since ACPI 2.0, there are many machines that |
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374 | * contain this type of code. Each block of detected executable AML code |
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375 | * outside of any control method is wrapped with a temporary control |
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376 | * method object and placed on a global list. The methods on this list |
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377 | * are executed below. |
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378 | */ |
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379 | AcpiNsExecModuleCodeList (); |
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380 | |||
381 | /* |
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382 | * Initialize the objects that remain uninitialized. This runs the |
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383 | * executable AML that may be part of the declaration of these objects: |
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384 | * OperationRegions, BufferFields, Buffers, and Packages. |
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385 | */ |
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386 | if (!(Flags & ACPI_NO_OBJECT_INIT)) |
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387 | { |
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388 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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389 | "[Init] Completing Initialization of ACPI Objects\n")); |
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390 | |||
391 | Status = AcpiNsInitializeObjects (); |
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392 | if (ACPI_FAILURE (Status)) |
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393 | { |
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394 | return_ACPI_STATUS (Status); |
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395 | } |
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396 | } |
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397 | |||
398 | /* |
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399 | * Initialize all device objects in the namespace. This runs the device |
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400 | * _STA and _INI methods. |
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401 | */ |
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402 | if (!(Flags & ACPI_NO_DEVICE_INIT)) |
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403 | { |
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404 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
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405 | "[Init] Initializing ACPI Devices\n")); |
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406 | |||
407 | Status = AcpiNsInitializeDevices (); |
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408 | if (ACPI_FAILURE (Status)) |
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409 | { |
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410 | return_ACPI_STATUS (Status); |
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411 | } |
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412 | } |
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413 | |||
414 | /* |
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415 | * Empty the caches (delete the cached objects) on the assumption that |
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416 | * the table load filled them up more than they will be at runtime -- |
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417 | * thus wasting non-paged memory. |
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418 | */ |
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419 | Status = AcpiPurgeCachedObjects (); |
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420 | |||
421 | AcpiGbl_StartupFlags |= ACPI_INITIALIZED_OK; |
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422 | return_ACPI_STATUS (Status); |
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423 | } |
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424 | |||
425 | ACPI_EXPORT_SYMBOL (AcpiInitializeObjects) |
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426 | |||
427 | |||
428 | #endif |
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429 | |||
430 | /******************************************************************************* |
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431 | * |
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432 | * FUNCTION: AcpiTerminate |
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433 | * |
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434 | * PARAMETERS: None |
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435 | * |
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436 | * RETURN: Status |
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437 | * |
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438 | * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources. |
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439 | * |
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440 | ******************************************************************************/ |
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441 | |||
442 | ACPI_STATUS |
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443 | AcpiTerminate ( |
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444 | void) |
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445 | { |
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446 | ACPI_STATUS Status; |
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447 | |||
448 | |||
449 | ACPI_FUNCTION_TRACE (AcpiTerminate); |
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450 | |||
451 | |||
452 | /* Just exit if subsystem is already shutdown */ |
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453 | |||
454 | if (AcpiGbl_Shutdown) |
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455 | { |
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456 | ACPI_ERROR ((AE_INFO, "ACPI Subsystem is already terminated")); |
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457 | return_ACPI_STATUS (AE_OK); |
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458 | } |
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459 | |||
460 | /* Subsystem appears active, go ahead and shut it down */ |
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461 | |||
462 | AcpiGbl_Shutdown = TRUE; |
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463 | AcpiGbl_StartupFlags = 0; |
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464 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); |
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465 | |||
466 | /* Terminate the AML Debugger if present */ |
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467 | |||
468 | ACPI_DEBUGGER_EXEC (AcpiGbl_DbTerminateThreads = TRUE); |
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469 | |||
470 | /* Shutdown and free all resources */ |
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471 | |||
472 | AcpiUtSubsystemShutdown (); |
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473 | |||
474 | /* Free the mutex objects */ |
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475 | |||
476 | AcpiUtMutexTerminate (); |
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477 | |||
478 | |||
479 | #ifdef ACPI_DEBUGGER |
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480 | |||
481 | /* Shut down the debugger */ |
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482 | |||
483 | AcpiDbTerminate (); |
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484 | #endif |
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485 | |||
486 | /* Now we can shutdown the OS-dependent layer */ |
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487 | |||
488 | Status = AcpiOsTerminate (); |
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489 | return_ACPI_STATUS (Status); |
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490 | } |
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491 | |||
492 | ACPI_EXPORT_SYMBOL (AcpiTerminate) |
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493 | |||
494 | |||
495 | #ifndef ACPI_ASL_COMPILER |
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496 | /******************************************************************************* |
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497 | * |
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498 | * FUNCTION: AcpiSubsystemStatus |
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499 | * |
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500 | * PARAMETERS: None |
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501 | * |
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502 | * RETURN: Status of the ACPI subsystem |
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503 | * |
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504 | * DESCRIPTION: Other drivers that use the ACPI subsystem should call this |
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505 | * before making any other calls, to ensure the subsystem |
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506 | * initialized successfully. |
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507 | * |
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508 | ******************************************************************************/ |
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509 | |||
510 | ACPI_STATUS |
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511 | AcpiSubsystemStatus ( |
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512 | void) |
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513 | { |
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514 | |||
515 | if (AcpiGbl_StartupFlags & ACPI_INITIALIZED_OK) |
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516 | { |
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517 | return (AE_OK); |
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518 | } |
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519 | else |
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520 | { |
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521 | return (AE_ERROR); |
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522 | } |
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523 | } |
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524 | |||
525 | ACPI_EXPORT_SYMBOL (AcpiSubsystemStatus) |
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526 | |||
527 | |||
528 | /******************************************************************************* |
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529 | * |
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530 | * FUNCTION: AcpiGetSystemInfo |
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531 | * |
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532 | * PARAMETERS: OutBuffer - A buffer to receive the resources for the |
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533 | * device |
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534 | * |
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535 | * RETURN: Status - the status of the call |
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536 | * |
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537 | * DESCRIPTION: This function is called to get information about the current |
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538 | * state of the ACPI subsystem. It will return system information |
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539 | * in the OutBuffer. |
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540 | * |
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541 | * If the function fails an appropriate status will be returned |
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542 | * and the value of OutBuffer is undefined. |
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543 | * |
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544 | ******************************************************************************/ |
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545 | |||
546 | ACPI_STATUS |
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547 | AcpiGetSystemInfo ( |
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548 | ACPI_BUFFER *OutBuffer) |
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549 | { |
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550 | ACPI_SYSTEM_INFO *InfoPtr; |
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551 | ACPI_STATUS Status; |
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552 | |||
553 | |||
554 | ACPI_FUNCTION_TRACE (AcpiGetSystemInfo); |
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555 | |||
556 | |||
557 | /* Parameter validation */ |
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558 | |||
559 | Status = AcpiUtValidateBuffer (OutBuffer); |
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560 | if (ACPI_FAILURE (Status)) |
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561 | { |
||
562 | return_ACPI_STATUS (Status); |
||
563 | } |
||
564 | |||
565 | /* Validate/Allocate/Clear caller buffer */ |
||
566 | |||
567 | Status = AcpiUtInitializeBuffer (OutBuffer, sizeof (ACPI_SYSTEM_INFO)); |
||
568 | if (ACPI_FAILURE (Status)) |
||
569 | { |
||
570 | return_ACPI_STATUS (Status); |
||
571 | } |
||
572 | |||
573 | /* |
||
574 | * Populate the return buffer |
||
575 | */ |
||
576 | InfoPtr = (ACPI_SYSTEM_INFO *) OutBuffer->Pointer; |
||
577 | |||
578 | InfoPtr->AcpiCaVersion = ACPI_CA_VERSION; |
||
579 | |||
580 | /* System flags (ACPI capabilities) */ |
||
581 | |||
582 | InfoPtr->Flags = ACPI_SYS_MODE_ACPI; |
||
583 | |||
584 | /* Timer resolution - 24 or 32 bits */ |
||
585 | |||
586 | if (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) |
||
587 | { |
||
588 | InfoPtr->TimerResolution = 24; |
||
589 | } |
||
590 | else |
||
591 | { |
||
592 | InfoPtr->TimerResolution = 32; |
||
593 | } |
||
594 | |||
595 | /* Clear the reserved fields */ |
||
596 | |||
597 | InfoPtr->Reserved1 = 0; |
||
598 | InfoPtr->Reserved2 = 0; |
||
599 | |||
600 | /* Current debug levels */ |
||
601 | |||
602 | InfoPtr->DebugLayer = AcpiDbgLayer; |
||
603 | InfoPtr->DebugLevel = AcpiDbgLevel; |
||
604 | |||
605 | return_ACPI_STATUS (AE_OK); |
||
606 | } |
||
607 | |||
608 | ACPI_EXPORT_SYMBOL (AcpiGetSystemInfo) |
||
609 | |||
610 | |||
611 | /******************************************************************************* |
||
612 | * |
||
613 | * FUNCTION: AcpiGetStatistics |
||
614 | * |
||
615 | * PARAMETERS: Stats - Where the statistics are returned |
||
616 | * |
||
617 | * RETURN: Status - the status of the call |
||
618 | * |
||
619 | * DESCRIPTION: Get the contents of the various system counters |
||
620 | * |
||
621 | ******************************************************************************/ |
||
622 | |||
623 | ACPI_STATUS |
||
624 | AcpiGetStatistics ( |
||
625 | ACPI_STATISTICS *Stats) |
||
626 | { |
||
627 | ACPI_FUNCTION_TRACE (AcpiGetStatistics); |
||
628 | |||
629 | |||
630 | /* Parameter validation */ |
||
631 | |||
632 | if (!Stats) |
||
633 | { |
||
634 | return_ACPI_STATUS (AE_BAD_PARAMETER); |
||
635 | } |
||
636 | |||
637 | /* Various interrupt-based event counters */ |
||
638 | |||
639 | Stats->SciCount = AcpiSciCount; |
||
640 | Stats->GpeCount = AcpiGpeCount; |
||
641 | |||
642 | ACPI_MEMCPY (Stats->FixedEventCount, AcpiFixedEventCount, |
||
643 | sizeof (AcpiFixedEventCount)); |
||
644 | |||
645 | |||
646 | /* Other counters */ |
||
647 | |||
648 | Stats->MethodCount = AcpiMethodCount; |
||
649 | |||
650 | return_ACPI_STATUS (AE_OK); |
||
651 | } |
||
652 | |||
653 | ACPI_EXPORT_SYMBOL (AcpiGetStatistics) |
||
654 | |||
655 | |||
656 | /***************************************************************************** |
||
657 | * |
||
658 | * FUNCTION: AcpiInstallInitializationHandler |
||
659 | * |
||
660 | * PARAMETERS: Handler - Callback procedure |
||
661 | * Function - Not (currently) used, see below |
||
662 | * |
||
663 | * RETURN: Status |
||
664 | * |
||
665 | * DESCRIPTION: Install an initialization handler |
||
666 | * |
||
667 | * TBD: When a second function is added, must save the Function also. |
||
668 | * |
||
669 | ****************************************************************************/ |
||
670 | |||
671 | ACPI_STATUS |
||
672 | AcpiInstallInitializationHandler ( |
||
673 | ACPI_INIT_HANDLER Handler, |
||
674 | UINT32 Function) |
||
675 | { |
||
676 | |||
677 | if (!Handler) |
||
678 | { |
||
679 | return (AE_BAD_PARAMETER); |
||
680 | } |
||
681 | |||
682 | if (AcpiGbl_InitHandler) |
||
683 | { |
||
684 | return (AE_ALREADY_EXISTS); |
||
685 | } |
||
686 | |||
687 | AcpiGbl_InitHandler = Handler; |
||
688 | return AE_OK; |
||
689 | } |
||
690 | |||
691 | ACPI_EXPORT_SYMBOL (AcpiInstallInitializationHandler) |
||
692 | |||
693 | |||
694 | /***************************************************************************** |
||
695 | * |
||
696 | * FUNCTION: AcpiPurgeCachedObjects |
||
697 | * |
||
698 | * PARAMETERS: None |
||
699 | * |
||
700 | * RETURN: Status |
||
701 | * |
||
702 | * DESCRIPTION: Empty all caches (delete the cached objects) |
||
703 | * |
||
704 | ****************************************************************************/ |
||
705 | |||
706 | ACPI_STATUS |
||
707 | AcpiPurgeCachedObjects ( |
||
708 | void) |
||
709 | { |
||
710 | ACPI_FUNCTION_TRACE (AcpiPurgeCachedObjects); |
||
711 | |||
712 | (void) AcpiOsPurgeCache (AcpiGbl_StateCache); |
||
713 | (void) AcpiOsPurgeCache (AcpiGbl_OperandCache); |
||
714 | (void) AcpiOsPurgeCache (AcpiGbl_PsNodeCache); |
||
715 | (void) AcpiOsPurgeCache (AcpiGbl_PsNodeExtCache); |
||
716 | return_ACPI_STATUS (AE_OK); |
||
717 | } |
||
718 | |||
719 | ACPI_EXPORT_SYMBOL (AcpiPurgeCachedObjects) |
||
720 | |||
721 | |||
2216 | Serge | 722 | /***************************************************************************** |
723 | * |
||
724 | * FUNCTION: AcpiInstallInterface |
||
725 | * |
||
726 | * PARAMETERS: InterfaceName - The interface to install |
||
727 | * |
||
728 | * RETURN: Status |
||
729 | * |
||
730 | * DESCRIPTION: Install an _OSI interface to the global list |
||
731 | * |
||
732 | ****************************************************************************/ |
||
733 | |||
734 | ACPI_STATUS |
||
735 | AcpiInstallInterface ( |
||
736 | ACPI_STRING InterfaceName) |
||
737 | { |
||
738 | ACPI_STATUS Status; |
||
739 | ACPI_INTERFACE_INFO *InterfaceInfo; |
||
740 | |||
741 | |||
742 | /* Parameter validation */ |
||
743 | |||
744 | if (!InterfaceName || (ACPI_STRLEN (InterfaceName) == 0)) |
||
745 | { |
||
746 | return (AE_BAD_PARAMETER); |
||
747 | } |
||
748 | |||
749 | (void) AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER); |
||
750 | |||
751 | /* Check if the interface name is already in the global list */ |
||
752 | |||
753 | InterfaceInfo = AcpiUtGetInterface (InterfaceName); |
||
754 | if (InterfaceInfo) |
||
755 | { |
||
756 | /* |
||
757 | * The interface already exists in the list. This is OK if the |
||
758 | * interface has been marked invalid -- just clear the bit. |
||
759 | */ |
||
760 | if (InterfaceInfo->Flags & ACPI_OSI_INVALID) |
||
761 | { |
||
762 | InterfaceInfo->Flags &= ~ACPI_OSI_INVALID; |
||
763 | Status = AE_OK; |
||
764 | } |
||
765 | else |
||
766 | { |
||
767 | Status = AE_ALREADY_EXISTS; |
||
768 | } |
||
769 | } |
||
770 | else |
||
771 | { |
||
772 | /* New interface name, install into the global list */ |
||
773 | |||
774 | Status = AcpiUtInstallInterface (InterfaceName); |
||
775 | } |
||
776 | |||
777 | AcpiOsReleaseMutex (AcpiGbl_OsiMutex); |
||
778 | return (Status); |
||
779 | } |
||
780 | |||
781 | ACPI_EXPORT_SYMBOL (AcpiInstallInterface) |
||
782 | |||
783 | |||
784 | /***************************************************************************** |
||
785 | * |
||
786 | * FUNCTION: AcpiRemoveInterface |
||
787 | * |
||
788 | * PARAMETERS: InterfaceName - The interface to remove |
||
789 | * |
||
790 | * RETURN: Status |
||
791 | * |
||
792 | * DESCRIPTION: Remove an _OSI interface from the global list |
||
793 | * |
||
794 | ****************************************************************************/ |
||
795 | |||
796 | ACPI_STATUS |
||
797 | AcpiRemoveInterface ( |
||
798 | ACPI_STRING InterfaceName) |
||
799 | { |
||
800 | ACPI_STATUS Status; |
||
801 | |||
802 | |||
803 | /* Parameter validation */ |
||
804 | |||
805 | if (!InterfaceName || (ACPI_STRLEN (InterfaceName) == 0)) |
||
806 | { |
||
807 | return (AE_BAD_PARAMETER); |
||
808 | } |
||
809 | |||
810 | (void) AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER); |
||
811 | |||
812 | Status = AcpiUtRemoveInterface (InterfaceName); |
||
813 | |||
814 | AcpiOsReleaseMutex (AcpiGbl_OsiMutex); |
||
815 | return (Status); |
||
816 | } |
||
817 | |||
818 | ACPI_EXPORT_SYMBOL (AcpiRemoveInterface) |
||
819 | |||
820 | |||
821 | /***************************************************************************** |
||
822 | * |
||
823 | * FUNCTION: AcpiInstallInterfaceHandler |
||
824 | * |
||
825 | * PARAMETERS: Handler - The _OSI interface handler to install |
||
826 | * NULL means "remove existing handler" |
||
827 | * |
||
828 | * RETURN: Status |
||
829 | * |
||
830 | * DESCRIPTION: Install a handler for the predefined _OSI ACPI method. |
||
831 | * invoked during execution of the internal implementation of |
||
832 | * _OSI. A NULL handler simply removes any existing handler. |
||
833 | * |
||
834 | ****************************************************************************/ |
||
835 | |||
836 | ACPI_STATUS |
||
837 | AcpiInstallInterfaceHandler ( |
||
838 | ACPI_INTERFACE_HANDLER Handler) |
||
839 | { |
||
840 | ACPI_STATUS Status = AE_OK; |
||
841 | |||
842 | |||
843 | (void) AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER); |
||
844 | |||
845 | if (Handler && AcpiGbl_InterfaceHandler) |
||
846 | { |
||
847 | Status = AE_ALREADY_EXISTS; |
||
848 | } |
||
849 | else |
||
850 | { |
||
851 | AcpiGbl_InterfaceHandler = Handler; |
||
852 | } |
||
853 | |||
854 | AcpiOsReleaseMutex (AcpiGbl_OsiMutex); |
||
855 | return (Status); |
||
856 | } |
||
857 | |||
858 | ACPI_EXPORT_SYMBOL (AcpiInstallInterfaceHandler) |
||
859 | |||
860 | #endif /* !ACPI_ASL_COMPILER */ |
||
861 |