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Rev | Author | Line No. | Line |
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1498 | serge | 1 | /****************************************************************************** |
2 | * |
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3 | * Module Name: asllookup- Namespace lookup |
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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 | #include "aslcompiler.h" |
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118 | #include "aslcompiler.y.h" |
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119 | |||
120 | #include "acparser.h" |
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121 | #include "amlcode.h" |
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122 | #include "acnamesp.h" |
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123 | #include "acdispat.h" |
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124 | |||
125 | |||
126 | #define _COMPONENT ACPI_COMPILER |
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127 | ACPI_MODULE_NAME ("asllookup") |
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128 | |||
129 | /* Local prototypes */ |
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130 | |||
131 | static ACPI_STATUS |
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132 | LsCompareOneNamespaceObject ( |
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133 | ACPI_HANDLE ObjHandle, |
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134 | UINT32 Level, |
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135 | void *Context, |
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136 | void **ReturnValue); |
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137 | |||
138 | static ACPI_STATUS |
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139 | LsDoOneNamespaceObject ( |
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140 | ACPI_HANDLE ObjHandle, |
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141 | UINT32 Level, |
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142 | void *Context, |
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143 | void **ReturnValue); |
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144 | |||
145 | static BOOLEAN |
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146 | LkObjectExists ( |
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147 | char *Name); |
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148 | |||
149 | static void |
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150 | LkCheckFieldRange ( |
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151 | ACPI_PARSE_OBJECT *Op, |
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152 | UINT32 RegionBitLength, |
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153 | UINT32 FieldBitOffset, |
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154 | UINT32 FieldBitLength, |
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155 | UINT32 AccessBitWidth); |
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156 | |||
157 | static ACPI_STATUS |
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158 | LkNamespaceLocateBegin ( |
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159 | ACPI_PARSE_OBJECT *Op, |
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160 | UINT32 Level, |
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161 | void *Context); |
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162 | |||
163 | static ACPI_STATUS |
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164 | LkNamespaceLocateEnd ( |
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165 | ACPI_PARSE_OBJECT *Op, |
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166 | UINT32 Level, |
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167 | void *Context); |
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168 | |||
169 | static ACPI_STATUS |
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170 | LkIsObjectUsed ( |
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171 | ACPI_HANDLE ObjHandle, |
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172 | UINT32 Level, |
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173 | void *Context, |
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174 | void **ReturnValue); |
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175 | |||
176 | static ACPI_STATUS |
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177 | LsDoOnePathname ( |
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178 | ACPI_HANDLE ObjHandle, |
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179 | UINT32 Level, |
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180 | void *Context, |
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181 | void **ReturnValue); |
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182 | |||
2216 | Serge | 183 | static ACPI_PARSE_OBJECT * |
1498 | serge | 184 | LkGetNameOp ( |
185 | ACPI_PARSE_OBJECT *Op); |
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186 | |||
187 | |||
188 | /******************************************************************************* |
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189 | * |
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190 | * FUNCTION: LsDoOneNamespaceObject |
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191 | * |
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192 | * PARAMETERS: ACPI_WALK_CALLBACK |
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193 | * |
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194 | * RETURN: Status |
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195 | * |
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196 | * DESCRIPTION: Dump a namespace object to the namespace output file. |
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197 | * Called during the walk of the namespace to dump all objects. |
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198 | * |
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199 | ******************************************************************************/ |
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200 | |||
201 | static ACPI_STATUS |
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202 | LsDoOneNamespaceObject ( |
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203 | ACPI_HANDLE ObjHandle, |
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204 | UINT32 Level, |
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205 | void *Context, |
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206 | void **ReturnValue) |
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207 | { |
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208 | ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; |
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209 | ACPI_OPERAND_OBJECT *ObjDesc; |
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210 | ACPI_PARSE_OBJECT *Op; |
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211 | |||
212 | |||
213 | Gbl_NumNamespaceObjects++; |
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214 | |||
215 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "%5u [%u] %*s %4.4s - %s", |
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216 | Gbl_NumNamespaceObjects, Level, (Level * 3), " ", |
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217 | &Node->Name, |
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218 | AcpiUtGetTypeName (Node->Type)); |
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219 | |||
220 | Op = Node->Op; |
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221 | ObjDesc = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Node->Object); |
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222 | |||
223 | if (!Op) |
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224 | { |
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225 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "\n"); |
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226 | return (AE_OK); |
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227 | } |
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228 | |||
229 | |||
230 | if ((ObjDesc) && |
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231 | (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_OPERAND)) |
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232 | { |
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233 | switch (Node->Type) |
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234 | { |
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235 | case ACPI_TYPE_INTEGER: |
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236 | |||
237 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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238 | " [Initial Value 0x%8.8X%8.8X]", |
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239 | ACPI_FORMAT_UINT64 (ObjDesc->Integer.Value)); |
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240 | break; |
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241 | |||
242 | |||
243 | case ACPI_TYPE_STRING: |
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244 | |||
245 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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246 | " [Initial Value \"%s\"]", |
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247 | ObjDesc->String.Pointer); |
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248 | break; |
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249 | |||
250 | default: |
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251 | /* Nothing to do for other types */ |
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252 | break; |
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253 | } |
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254 | |||
255 | } |
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256 | else |
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257 | { |
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258 | switch (Node->Type) |
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259 | { |
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260 | case ACPI_TYPE_INTEGER: |
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261 | |||
262 | if (Op->Asl.ParseOpcode == PARSEOP_NAME) |
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263 | { |
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264 | Op = Op->Asl.Child; |
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265 | } |
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266 | if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG) || |
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267 | (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING)) |
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268 | { |
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269 | Op = Op->Asl.Next; |
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270 | } |
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271 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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272 | " [Initial Value 0x%8.8X%8.8X]", |
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273 | ACPI_FORMAT_UINT64 (Op->Asl.Value.Integer)); |
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274 | break; |
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275 | |||
276 | |||
277 | case ACPI_TYPE_STRING: |
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278 | |||
279 | if (Op->Asl.ParseOpcode == PARSEOP_NAME) |
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280 | { |
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281 | Op = Op->Asl.Child; |
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282 | } |
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283 | if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG) || |
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284 | (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING)) |
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285 | { |
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286 | Op = Op->Asl.Next; |
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287 | } |
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288 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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289 | " [Initial Value \"%s\"]", |
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290 | Op->Asl.Value.String); |
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291 | break; |
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292 | |||
293 | |||
294 | case ACPI_TYPE_LOCAL_REGION_FIELD: |
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295 | |||
296 | if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG) || |
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297 | (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING)) |
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298 | { |
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299 | Op = Op->Asl.Child; |
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300 | } |
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301 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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302 | " [Offset 0x%04X Length 0x%04X bits]", |
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303 | Op->Asl.Parent->Asl.ExtraValue, (UINT32) Op->Asl.Value.Integer); |
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304 | break; |
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305 | |||
306 | |||
307 | case ACPI_TYPE_BUFFER_FIELD: |
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308 | |||
309 | switch (Op->Asl.ParseOpcode) |
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310 | { |
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311 | case PARSEOP_CREATEBYTEFIELD: |
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312 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, " [BYTE ( 8 bit)]"); |
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313 | break; |
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314 | |||
315 | case PARSEOP_CREATEDWORDFIELD: |
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316 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, " [DWORD (32 bit)]"); |
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317 | break; |
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318 | |||
319 | case PARSEOP_CREATEQWORDFIELD: |
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320 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, " [QWORD (64 bit)]"); |
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321 | break; |
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322 | |||
323 | case PARSEOP_CREATEWORDFIELD: |
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324 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, " [WORD (16 bit)]"); |
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325 | break; |
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326 | |||
327 | case PARSEOP_CREATEBITFIELD: |
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328 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, " [BIT ( 1 bit)]"); |
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329 | break; |
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330 | |||
331 | case PARSEOP_CREATEFIELD: |
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332 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, " [Arbitrary Bit Field]"); |
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333 | break; |
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334 | |||
335 | default: |
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336 | break; |
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337 | |||
338 | } |
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339 | break; |
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340 | |||
341 | |||
342 | case ACPI_TYPE_PACKAGE: |
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343 | |||
344 | if (Op->Asl.ParseOpcode == PARSEOP_NAME) |
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345 | { |
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346 | Op = Op->Asl.Child; |
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347 | } |
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348 | if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG) || |
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349 | (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING)) |
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350 | { |
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351 | Op = Op->Asl.Next; |
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352 | } |
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353 | Op = Op->Asl.Child; |
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354 | |||
355 | if ((Op->Asl.ParseOpcode == PARSEOP_BYTECONST) || |
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356 | (Op->Asl.ParseOpcode == PARSEOP_RAW_DATA)) |
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357 | { |
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358 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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359 | " [Initial Length 0x%.2X elements]", |
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360 | Op->Asl.Value.Integer); |
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361 | } |
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362 | break; |
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363 | |||
364 | |||
365 | case ACPI_TYPE_BUFFER: |
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366 | |||
367 | if (Op->Asl.ParseOpcode == PARSEOP_NAME) |
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368 | { |
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369 | Op = Op->Asl.Child; |
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370 | } |
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371 | if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG) || |
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372 | (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING)) |
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373 | { |
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374 | Op = Op->Asl.Next; |
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375 | } |
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376 | Op = Op->Asl.Child; |
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377 | |||
378 | if (Op && (Op->Asl.ParseOpcode == PARSEOP_INTEGER)) |
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379 | { |
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380 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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381 | " [Initial Length 0x%.2X bytes]", |
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382 | Op->Asl.Value.Integer); |
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383 | } |
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384 | break; |
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385 | |||
386 | |||
387 | case ACPI_TYPE_METHOD: |
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388 | |||
389 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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390 | " [Code Length 0x%.4X bytes]", |
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391 | Op->Asl.AmlSubtreeLength); |
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392 | break; |
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393 | |||
394 | |||
395 | case ACPI_TYPE_LOCAL_RESOURCE: |
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396 | |||
397 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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398 | " [Desc Offset 0x%.4X Bytes]", Node->Value); |
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399 | break; |
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400 | |||
401 | |||
402 | case ACPI_TYPE_LOCAL_RESOURCE_FIELD: |
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403 | |||
404 | if (Node->Flags & 0x80) |
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405 | { |
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406 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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407 | " [Field Offset 0x%.4X Bits 0x%.4X Bytes]", |
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408 | Node->Value, Node->Value / 8); |
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409 | } |
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410 | else |
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411 | { |
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412 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, |
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413 | " [Field Offset 0x%.4X Bytes]", Node->Value); |
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414 | } |
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415 | break; |
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416 | |||
417 | |||
418 | default: |
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419 | /* Nothing to do for other types */ |
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420 | break; |
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421 | } |
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422 | } |
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423 | |||
424 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "\n"); |
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425 | return (AE_OK); |
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426 | } |
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427 | |||
428 | |||
429 | /******************************************************************************* |
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430 | * |
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431 | * FUNCTION: LsSetupNsList |
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432 | * |
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433 | * PARAMETERS: Handle - local file handle |
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434 | * |
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435 | * RETURN: None |
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436 | * |
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437 | * DESCRIPTION: Set the namespace output file to the input handle |
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438 | * |
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439 | ******************************************************************************/ |
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440 | |||
441 | void |
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442 | LsSetupNsList ( |
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443 | void *Handle) |
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444 | { |
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445 | |||
446 | Gbl_NsOutputFlag = TRUE; |
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447 | Gbl_Files[ASL_FILE_NAMESPACE_OUTPUT].Handle = Handle; |
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448 | } |
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449 | |||
450 | |||
451 | /******************************************************************************* |
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452 | * |
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453 | * FUNCTION: LsDoOnePathname |
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454 | * |
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455 | * PARAMETERS: ACPI_WALK_CALLBACK |
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456 | * |
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457 | * RETURN: Status |
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458 | * |
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459 | * DESCRIPTION: Print the full pathname for a namespace node. |
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460 | * |
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461 | ******************************************************************************/ |
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462 | |||
463 | static ACPI_STATUS |
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464 | LsDoOnePathname ( |
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465 | ACPI_HANDLE ObjHandle, |
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466 | UINT32 Level, |
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467 | void *Context, |
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468 | void **ReturnValue) |
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469 | { |
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470 | ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; |
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471 | ACPI_STATUS Status; |
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472 | ACPI_BUFFER TargetPath; |
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473 | |||
474 | |||
475 | TargetPath.Length = ACPI_ALLOCATE_LOCAL_BUFFER; |
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476 | Status = AcpiNsHandleToPathname (Node, &TargetPath); |
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477 | if (ACPI_FAILURE (Status)) |
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478 | { |
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479 | return (Status); |
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480 | } |
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481 | |||
482 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "%s\n", TargetPath.Pointer); |
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483 | ACPI_FREE (TargetPath.Pointer); |
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484 | |||
485 | return (AE_OK); |
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486 | } |
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487 | |||
488 | |||
489 | /******************************************************************************* |
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490 | * |
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491 | * FUNCTION: LsDisplayNamespace |
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492 | * |
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493 | * PARAMETERS: None |
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494 | * |
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495 | * RETURN: Status |
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496 | * |
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497 | * DESCRIPTION: Walk the namespace an display information about each node |
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498 | * in the tree. Information is written to the optional |
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499 | * namespace output file. |
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500 | * |
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501 | ******************************************************************************/ |
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502 | |||
503 | ACPI_STATUS |
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504 | LsDisplayNamespace ( |
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505 | void) |
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506 | { |
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507 | ACPI_STATUS Status; |
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508 | |||
509 | |||
510 | if (!Gbl_NsOutputFlag) |
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511 | { |
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512 | return (AE_OK); |
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513 | } |
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514 | |||
515 | Gbl_NumNamespaceObjects = 0; |
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516 | |||
517 | /* File header */ |
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518 | |||
519 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "Contents of ACPI Namespace\n\n"); |
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520 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "Count Depth Name - Type\n\n"); |
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521 | |||
522 | /* Walk entire namespace from the root */ |
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523 | |||
524 | Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, |
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525 | ACPI_UINT32_MAX, FALSE, LsDoOneNamespaceObject, NULL, |
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526 | NULL, NULL); |
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527 | |||
528 | /* Print the full pathname for each namespace node */ |
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529 | |||
530 | FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "\nNamespace pathnames\n\n"); |
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531 | |||
532 | Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, |
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533 | ACPI_UINT32_MAX, FALSE, LsDoOnePathname, NULL, |
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534 | NULL, NULL); |
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535 | |||
536 | return (Status); |
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537 | } |
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538 | |||
539 | |||
540 | /******************************************************************************* |
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541 | * |
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542 | * FUNCTION: LsCompareOneNamespaceObject |
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543 | * |
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544 | * PARAMETERS: ACPI_WALK_CALLBACK |
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545 | * |
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546 | * RETURN: Status |
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547 | * |
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548 | * DESCRIPTION: Compare name of one object. |
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549 | * |
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550 | ******************************************************************************/ |
||
551 | |||
552 | static ACPI_STATUS |
||
553 | LsCompareOneNamespaceObject ( |
||
554 | ACPI_HANDLE ObjHandle, |
||
555 | UINT32 Level, |
||
556 | void *Context, |
||
557 | void **ReturnValue) |
||
558 | { |
||
559 | ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; |
||
560 | |||
561 | |||
562 | /* Simply check the name */ |
||
563 | |||
564 | if (*((UINT32 *) (Context)) == Node->Name.Integer) |
||
565 | { |
||
566 | /* Abort walk if we found one instance */ |
||
567 | |||
568 | return (AE_CTRL_TRUE); |
||
569 | } |
||
570 | |||
571 | return (AE_OK); |
||
572 | } |
||
573 | |||
574 | |||
575 | /******************************************************************************* |
||
576 | * |
||
577 | * FUNCTION: LkObjectExists |
||
578 | * |
||
579 | * PARAMETERS: Name - 4 char ACPI name |
||
580 | * |
||
581 | * RETURN: TRUE if name exists in namespace |
||
582 | * |
||
583 | * DESCRIPTION: Walk the namespace to find an object |
||
584 | * |
||
585 | ******************************************************************************/ |
||
586 | |||
587 | static BOOLEAN |
||
588 | LkObjectExists ( |
||
589 | char *Name) |
||
590 | { |
||
591 | ACPI_STATUS Status; |
||
592 | |||
593 | |||
594 | /* Walk entire namespace from the supplied root */ |
||
595 | |||
596 | Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, |
||
597 | ACPI_UINT32_MAX, FALSE, LsCompareOneNamespaceObject, NULL, |
||
598 | Name, NULL); |
||
599 | if (Status == AE_CTRL_TRUE) |
||
600 | { |
||
601 | /* At least one instance of the name was found */ |
||
602 | |||
603 | return (TRUE); |
||
604 | } |
||
605 | |||
606 | return (FALSE); |
||
607 | } |
||
608 | |||
609 | |||
610 | /******************************************************************************* |
||
611 | * |
||
612 | * FUNCTION: LkGetNameOp |
||
613 | * |
||
614 | * PARAMETERS: Op - Current Op |
||
615 | * |
||
616 | * RETURN: NameOp associated with the input op |
||
617 | * |
||
618 | * DESCRIPTION: Find the name declaration op associated with the operator |
||
619 | * |
||
620 | ******************************************************************************/ |
||
621 | |||
2216 | Serge | 622 | static ACPI_PARSE_OBJECT * |
1498 | serge | 623 | LkGetNameOp ( |
624 | ACPI_PARSE_OBJECT *Op) |
||
625 | { |
||
626 | const ACPI_OPCODE_INFO *OpInfo; |
||
627 | ACPI_PARSE_OBJECT *NameOp = Op; |
||
628 | |||
629 | |||
630 | OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode); |
||
631 | |||
632 | |||
633 | /* Get the NamePath from the appropriate place */ |
||
634 | |||
635 | if (OpInfo->Flags & AML_NAMED) |
||
636 | { |
||
637 | /* For nearly all NAMED operators, the name reference is the first child */ |
||
638 | |||
639 | NameOp = Op->Asl.Child; |
||
640 | if (Op->Asl.AmlOpcode == AML_ALIAS_OP) |
||
641 | { |
||
642 | /* |
||
643 | * ALIAS is the only oddball opcode, the name declaration |
||
644 | * (alias name) is the second operand |
||
645 | */ |
||
646 | NameOp = Op->Asl.Child->Asl.Next; |
||
647 | } |
||
648 | } |
||
649 | else if (OpInfo->Flags & AML_CREATE) |
||
650 | { |
||
651 | /* Name must appear as the last parameter */ |
||
652 | |||
653 | NameOp = Op->Asl.Child; |
||
654 | while (!(NameOp->Asl.CompileFlags & NODE_IS_NAME_DECLARATION)) |
||
655 | { |
||
656 | NameOp = NameOp->Asl.Next; |
||
657 | } |
||
658 | } |
||
659 | |||
660 | return (NameOp); |
||
661 | } |
||
662 | |||
663 | |||
664 | /******************************************************************************* |
||
665 | * |
||
666 | * FUNCTION: LkIsObjectUsed |
||
667 | * |
||
668 | * PARAMETERS: ACPI_WALK_CALLBACK |
||
669 | * |
||
670 | * RETURN: Status |
||
671 | * |
||
672 | * DESCRIPTION: Check for an unreferenced namespace object and emit a warning. |
||
673 | * We have to be careful, because some types and names are |
||
674 | * typically or always unreferenced, we don't want to issue |
||
675 | * excessive warnings. |
||
676 | * |
||
677 | ******************************************************************************/ |
||
678 | |||
679 | static ACPI_STATUS |
||
680 | LkIsObjectUsed ( |
||
681 | ACPI_HANDLE ObjHandle, |
||
682 | UINT32 Level, |
||
683 | void *Context, |
||
684 | void **ReturnValue) |
||
685 | { |
||
686 | ACPI_NAMESPACE_NODE *Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle); |
||
687 | |||
688 | |||
689 | /* Referenced flag is set during the namespace xref */ |
||
690 | |||
691 | if (Node->Flags & ANOBJ_IS_REFERENCED) |
||
692 | { |
||
693 | return (AE_OK); |
||
694 | } |
||
695 | |||
696 | /* |
||
697 | * Ignore names that start with an underscore, |
||
698 | * these are the reserved ACPI names and are typically not referenced, |
||
699 | * they are called by the host OS. |
||
700 | */ |
||
701 | if (Node->Name.Ascii[0] == '_') |
||
702 | { |
||
703 | return (AE_OK); |
||
704 | } |
||
705 | |||
706 | /* There are some types that are typically not referenced, ignore them */ |
||
707 | |||
708 | switch (Node->Type) |
||
709 | { |
||
710 | case ACPI_TYPE_DEVICE: |
||
711 | case ACPI_TYPE_PROCESSOR: |
||
712 | case ACPI_TYPE_POWER: |
||
713 | case ACPI_TYPE_LOCAL_RESOURCE: |
||
714 | return (AE_OK); |
||
715 | |||
716 | default: |
||
717 | break; |
||
718 | } |
||
719 | |||
720 | /* All others are valid unreferenced namespace objects */ |
||
721 | |||
722 | if (Node->Op) |
||
723 | { |
||
724 | AslError (ASL_WARNING2, ASL_MSG_NOT_REFERENCED, LkGetNameOp (Node->Op), NULL); |
||
725 | } |
||
726 | return (AE_OK); |
||
727 | } |
||
728 | |||
729 | |||
730 | /******************************************************************************* |
||
731 | * |
||
732 | * FUNCTION: LkFindUnreferencedObjects |
||
733 | * |
||
734 | * PARAMETERS: None |
||
735 | * |
||
736 | * RETURN: None |
||
737 | * |
||
738 | * DESCRIPTION: Namespace walk to find objects that are not referenced in any |
||
739 | * way. Must be called after the namespace has been cross |
||
740 | * referenced. |
||
741 | * |
||
742 | ******************************************************************************/ |
||
743 | |||
744 | void |
||
745 | LkFindUnreferencedObjects ( |
||
746 | void) |
||
747 | { |
||
748 | |||
749 | /* Walk entire namespace from the supplied root */ |
||
750 | |||
751 | (void) AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, |
||
752 | ACPI_UINT32_MAX, FALSE, LkIsObjectUsed, NULL, |
||
753 | NULL, NULL); |
||
754 | } |
||
755 | |||
756 | |||
757 | /******************************************************************************* |
||
758 | * |
||
759 | * FUNCTION: LkCrossReferenceNamespace |
||
760 | * |
||
761 | * PARAMETERS: None |
||
762 | * |
||
763 | * RETURN: Status |
||
764 | * |
||
765 | * DESCRIPTION: Perform a cross reference check of the parse tree against the |
||
766 | * namespace. Every named referenced within the parse tree |
||
767 | * should be get resolved with a namespace lookup. If not, the |
||
768 | * original reference in the ASL code is invalid -- i.e., refers |
||
769 | * to a non-existent object. |
||
770 | * |
||
771 | * NOTE: The ASL "External" operator causes the name to be inserted into the |
||
772 | * namespace so that references to the external name will be resolved |
||
773 | * correctly here. |
||
774 | * |
||
775 | ******************************************************************************/ |
||
776 | |||
777 | ACPI_STATUS |
||
778 | LkCrossReferenceNamespace ( |
||
779 | void) |
||
780 | { |
||
781 | ACPI_WALK_STATE *WalkState; |
||
782 | |||
783 | |||
784 | DbgPrint (ASL_DEBUG_OUTPUT, "\nCross referencing namespace\n\n"); |
||
785 | |||
786 | /* |
||
787 | * Create a new walk state for use when looking up names |
||
788 | * within the namespace (Passed as context to the callbacks) |
||
789 | */ |
||
790 | WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL); |
||
791 | if (!WalkState) |
||
792 | { |
||
793 | return AE_NO_MEMORY; |
||
794 | } |
||
795 | |||
796 | /* Walk the entire parse tree */ |
||
797 | |||
798 | TrWalkParseTree (RootNode, ASL_WALK_VISIT_TWICE, LkNamespaceLocateBegin, |
||
799 | LkNamespaceLocateEnd, WalkState); |
||
800 | return AE_OK; |
||
801 | } |
||
802 | |||
803 | |||
804 | /******************************************************************************* |
||
805 | * |
||
806 | * FUNCTION: LkCheckFieldRange |
||
807 | * |
||
808 | * PARAMETERS: RegionBitLength - Length of entire parent region |
||
809 | * FieldBitOffset - Start of the field unit (within region) |
||
810 | * FieldBitLength - Entire length of field unit |
||
811 | * AccessBitWidth - Access width of the field unit |
||
812 | * |
||
813 | * RETURN: None |
||
814 | * |
||
815 | * DESCRIPTION: Check one field unit to make sure it fits in the parent |
||
816 | * op region. |
||
817 | * |
||
818 | * Note: AccessBitWidth must be either 8,16,32, or 64 |
||
819 | * |
||
820 | ******************************************************************************/ |
||
821 | |||
822 | static void |
||
823 | LkCheckFieldRange ( |
||
824 | ACPI_PARSE_OBJECT *Op, |
||
825 | UINT32 RegionBitLength, |
||
826 | UINT32 FieldBitOffset, |
||
827 | UINT32 FieldBitLength, |
||
828 | UINT32 AccessBitWidth) |
||
829 | { |
||
830 | UINT32 FieldEndBitOffset; |
||
831 | |||
832 | |||
833 | /* |
||
834 | * Check each field unit against the region size. The entire |
||
835 | * field unit (start offset plus length) must fit within the |
||
836 | * region. |
||
837 | */ |
||
838 | FieldEndBitOffset = FieldBitOffset + FieldBitLength; |
||
839 | |||
840 | if (FieldEndBitOffset > RegionBitLength) |
||
841 | { |
||
842 | /* Field definition itself is beyond the end-of-region */ |
||
843 | |||
844 | AslError (ASL_ERROR, ASL_MSG_FIELD_UNIT_OFFSET, Op, NULL); |
||
845 | return; |
||
846 | } |
||
847 | |||
848 | /* |
||
849 | * Now check that the field plus AccessWidth doesn't go beyond |
||
850 | * the end-of-region. Assumes AccessBitWidth is a power of 2 |
||
851 | */ |
||
852 | FieldEndBitOffset = ACPI_ROUND_UP (FieldEndBitOffset, AccessBitWidth); |
||
853 | |||
854 | if (FieldEndBitOffset > RegionBitLength) |
||
855 | { |
||
856 | /* Field definition combined with the access is beyond EOR */ |
||
857 | |||
858 | AslError (ASL_ERROR, ASL_MSG_FIELD_UNIT_ACCESS_WIDTH, Op, NULL); |
||
859 | } |
||
860 | } |
||
861 | |||
862 | /******************************************************************************* |
||
863 | * |
||
864 | * FUNCTION: LkNamespaceLocateBegin |
||
865 | * |
||
866 | * PARAMETERS: ASL_WALK_CALLBACK |
||
867 | * |
||
868 | * RETURN: Status |
||
869 | * |
||
870 | * DESCRIPTION: Descending callback used during cross-reference. For named |
||
871 | * object references, attempt to locate the name in the |
||
872 | * namespace. |
||
873 | * |
||
874 | * NOTE: ASL references to named fields within resource descriptors are |
||
875 | * resolved to integer values here. Therefore, this step is an |
||
876 | * important part of the code generation. We don't know that the |
||
877 | * name refers to a resource descriptor until now. |
||
878 | * |
||
879 | ******************************************************************************/ |
||
880 | |||
881 | static ACPI_STATUS |
||
882 | LkNamespaceLocateBegin ( |
||
883 | ACPI_PARSE_OBJECT *Op, |
||
884 | UINT32 Level, |
||
885 | void *Context) |
||
886 | { |
||
887 | ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context; |
||
888 | ACPI_NAMESPACE_NODE *Node; |
||
889 | ACPI_STATUS Status; |
||
890 | ACPI_OBJECT_TYPE ObjectType; |
||
891 | char *Path; |
||
892 | UINT8 PassedArgs; |
||
893 | ACPI_PARSE_OBJECT *NextOp; |
||
894 | ACPI_PARSE_OBJECT *OwningOp; |
||
895 | ACPI_PARSE_OBJECT *SpaceIdOp; |
||
896 | UINT32 MinimumLength; |
||
897 | UINT32 Temp; |
||
898 | const ACPI_OPCODE_INFO *OpInfo; |
||
899 | UINT32 Flags; |
||
900 | |||
901 | |||
902 | ACPI_FUNCTION_TRACE_PTR (LkNamespaceLocateBegin, Op); |
||
903 | |||
904 | /* |
||
905 | * If this node is the actual declaration of a name |
||
906 | * [such as the XXXX name in "Method (XXXX)"], |
||
907 | * we are not interested in it here. We only care about names that are |
||
908 | * references to other objects within the namespace and the parent objects |
||
909 | * of name declarations |
||
910 | */ |
||
911 | if (Op->Asl.CompileFlags & NODE_IS_NAME_DECLARATION) |
||
912 | { |
||
913 | return (AE_OK); |
||
914 | } |
||
915 | |||
916 | /* We are only interested in opcodes that have an associated name */ |
||
917 | |||
918 | OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode); |
||
919 | |||
920 | if ((!(OpInfo->Flags & AML_NAMED)) && |
||
921 | (!(OpInfo->Flags & AML_CREATE)) && |
||
922 | (Op->Asl.ParseOpcode != PARSEOP_NAMESTRING) && |
||
923 | (Op->Asl.ParseOpcode != PARSEOP_NAMESEG) && |
||
924 | (Op->Asl.ParseOpcode != PARSEOP_METHODCALL)) |
||
925 | { |
||
926 | return (AE_OK); |
||
927 | } |
||
928 | |||
929 | /* |
||
930 | * One special case: CondRefOf operator - we don't care if the name exists |
||
931 | * or not at this point, just ignore it, the point of the operator is to |
||
932 | * determine if the name exists at runtime. |
||
933 | */ |
||
934 | if ((Op->Asl.Parent) && |
||
935 | (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CONDREFOF)) |
||
936 | { |
||
937 | return (AE_OK); |
||
938 | } |
||
939 | |||
940 | /* |
||
941 | * We must enable the "search-to-root" for single NameSegs, but |
||
942 | * we have to be very careful about opening up scopes |
||
943 | */ |
||
944 | Flags = ACPI_NS_SEARCH_PARENT; |
||
945 | if ((Op->Asl.ParseOpcode == PARSEOP_NAMESTRING) || |
||
946 | (Op->Asl.ParseOpcode == PARSEOP_NAMESEG) || |
||
947 | (Op->Asl.ParseOpcode == PARSEOP_METHODCALL)) |
||
948 | { |
||
949 | /* |
||
950 | * These are name references, do not push the scope stack |
||
951 | * for them. |
||
952 | */ |
||
953 | Flags |= ACPI_NS_DONT_OPEN_SCOPE; |
||
954 | } |
||
955 | |||
956 | /* Get the NamePath from the appropriate place */ |
||
957 | |||
958 | if (OpInfo->Flags & AML_NAMED) |
||
959 | { |
||
960 | /* For nearly all NAMED operators, the name reference is the first child */ |
||
961 | |||
962 | Path = Op->Asl.Child->Asl.Value.String; |
||
963 | if (Op->Asl.AmlOpcode == AML_ALIAS_OP) |
||
964 | { |
||
965 | /* |
||
966 | * ALIAS is the only oddball opcode, the name declaration |
||
967 | * (alias name) is the second operand |
||
968 | */ |
||
969 | Path = Op->Asl.Child->Asl.Next->Asl.Value.String; |
||
970 | } |
||
971 | } |
||
972 | else if (OpInfo->Flags & AML_CREATE) |
||
973 | { |
||
974 | /* Name must appear as the last parameter */ |
||
975 | |||
976 | NextOp = Op->Asl.Child; |
||
977 | while (!(NextOp->Asl.CompileFlags & NODE_IS_NAME_DECLARATION)) |
||
978 | { |
||
979 | NextOp = NextOp->Asl.Next; |
||
980 | } |
||
981 | Path = NextOp->Asl.Value.String; |
||
982 | } |
||
983 | else |
||
984 | { |
||
985 | Path = Op->Asl.Value.String; |
||
986 | } |
||
987 | |||
988 | ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode); |
||
989 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
||
990 | "Type=%s\n", AcpiUtGetTypeName (ObjectType))); |
||
991 | |||
992 | /* |
||
993 | * Lookup the name in the namespace. Name must exist at this point, or it |
||
994 | * is an invalid reference. |
||
995 | * |
||
996 | * The namespace is also used as a lookup table for references to resource |
||
997 | * descriptors and the fields within them. |
||
998 | */ |
||
999 | Gbl_NsLookupCount++; |
||
1000 | |||
1001 | Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, |
||
1002 | ACPI_IMODE_EXECUTE, Flags, WalkState, &(Node)); |
||
1003 | if (ACPI_FAILURE (Status)) |
||
1004 | { |
||
1005 | if (Status == AE_NOT_FOUND) |
||
1006 | { |
||
1007 | /* |
||
1008 | * We didn't find the name reference by path -- we can qualify this |
||
1009 | * a little better before we print an error message |
||
1010 | */ |
||
1011 | if (strlen (Path) == ACPI_NAME_SIZE) |
||
1012 | { |
||
1013 | /* A simple, one-segment ACPI name */ |
||
1014 | |||
1015 | if (LkObjectExists (Path)) |
||
1016 | { |
||
1017 | /* |
||
1018 | * There exists such a name, but we couldn't get to it |
||
1019 | * from this scope |
||
1020 | */ |
||
1021 | AslError (ASL_ERROR, ASL_MSG_NOT_REACHABLE, Op, |
||
1022 | Op->Asl.ExternalName); |
||
1023 | } |
||
1024 | else |
||
1025 | { |
||
1026 | /* The name doesn't exist, period */ |
||
1027 | |||
1028 | AslError (ASL_ERROR, ASL_MSG_NOT_EXIST, |
||
1029 | Op, Op->Asl.ExternalName); |
||
1030 | } |
||
1031 | } |
||
1032 | else |
||
1033 | { |
||
1034 | /* Check for a fully qualified path */ |
||
1035 | |||
1036 | if (Path[0] == AML_ROOT_PREFIX) |
||
1037 | { |
||
1038 | /* Gave full path, the object does not exist */ |
||
1039 | |||
1040 | AslError (ASL_ERROR, ASL_MSG_NOT_EXIST, Op, |
||
1041 | Op->Asl.ExternalName); |
||
1042 | } |
||
1043 | else |
||
1044 | { |
||
1045 | /* |
||
1046 | * We can't tell whether it doesn't exist or just |
||
1047 | * can't be reached. |
||
1048 | */ |
||
1049 | AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op, |
||
1050 | Op->Asl.ExternalName); |
||
1051 | } |
||
1052 | } |
||
1053 | |||
1054 | Status = AE_OK; |
||
1055 | } |
||
1056 | return (Status); |
||
1057 | } |
||
1058 | |||
1059 | /* Check for a reference vs. name declaration */ |
||
1060 | |||
1061 | if (!(OpInfo->Flags & AML_NAMED) && |
||
1062 | !(OpInfo->Flags & AML_CREATE)) |
||
1063 | { |
||
1064 | /* This node has been referenced, mark it for reference check */ |
||
1065 | |||
1066 | Node->Flags |= ANOBJ_IS_REFERENCED; |
||
1067 | } |
||
1068 | |||
1069 | /* Attempt to optimize the NamePath */ |
||
1070 | |||
1071 | OptOptimizeNamePath (Op, OpInfo->Flags, WalkState, Path, Node); |
||
1072 | |||
1073 | /* |
||
1074 | * 1) Dereference an alias (A name reference that is an alias) |
||
1075 | * Aliases are not nested, the alias always points to the final object |
||
1076 | */ |
||
1077 | if ((Op->Asl.ParseOpcode != PARSEOP_ALIAS) && |
||
1078 | (Node->Type == ACPI_TYPE_LOCAL_ALIAS)) |
||
1079 | { |
||
1080 | /* This node points back to the original PARSEOP_ALIAS */ |
||
1081 | |||
1082 | NextOp = Node->Op; |
||
1083 | |||
1084 | /* The first child is the alias target op */ |
||
1085 | |||
1086 | NextOp = NextOp->Asl.Child; |
||
1087 | |||
1088 | /* That in turn points back to original target alias node */ |
||
1089 | |||
1090 | if (NextOp->Asl.Node) |
||
1091 | { |
||
1092 | Node = NextOp->Asl.Node; |
||
1093 | } |
||
1094 | |||
1095 | /* Else - forward reference to alias, will be resolved later */ |
||
1096 | } |
||
1097 | |||
1098 | /* 2) Check for a reference to a resource descriptor */ |
||
1099 | |||
1100 | if ((Node->Type == ACPI_TYPE_LOCAL_RESOURCE_FIELD) || |
||
1101 | (Node->Type == ACPI_TYPE_LOCAL_RESOURCE)) |
||
1102 | { |
||
1103 | /* |
||
1104 | * This was a reference to a field within a resource descriptor. Extract |
||
1105 | * the associated field offset (either a bit or byte offset depending on |
||
1106 | * the field type) and change the named reference into an integer for |
||
1107 | * AML code generation |
||
1108 | */ |
||
1109 | Temp = Node->Value; |
||
1110 | if (Node->Flags & ANOBJ_IS_BIT_OFFSET) |
||
1111 | { |
||
1112 | Op->Asl.CompileFlags |= NODE_IS_BIT_OFFSET; |
||
1113 | } |
||
1114 | |||
1115 | /* Perform BitOffset <--> ByteOffset conversion if necessary */ |
||
1116 | |||
1117 | switch (Op->Asl.Parent->Asl.AmlOpcode) |
||
1118 | { |
||
1119 | case AML_CREATE_FIELD_OP: |
||
1120 | |||
1121 | /* We allow a Byte offset to Bit Offset conversion for this op */ |
||
1122 | |||
1123 | if (!(Op->Asl.CompileFlags & NODE_IS_BIT_OFFSET)) |
||
1124 | { |
||
1125 | /* Simply multiply byte offset times 8 to get bit offset */ |
||
1126 | |||
1127 | Temp = ACPI_MUL_8 (Temp); |
||
1128 | } |
||
1129 | break; |
||
1130 | |||
1131 | |||
1132 | case AML_CREATE_BIT_FIELD_OP: |
||
1133 | |||
1134 | /* This op requires a Bit Offset */ |
||
1135 | |||
1136 | if (!(Op->Asl.CompileFlags & NODE_IS_BIT_OFFSET)) |
||
1137 | { |
||
1138 | AslError (ASL_ERROR, ASL_MSG_BYTES_TO_BITS, Op, NULL); |
||
1139 | } |
||
1140 | break; |
||
1141 | |||
1142 | |||
1143 | case AML_CREATE_BYTE_FIELD_OP: |
||
1144 | case AML_CREATE_WORD_FIELD_OP: |
||
1145 | case AML_CREATE_DWORD_FIELD_OP: |
||
1146 | case AML_CREATE_QWORD_FIELD_OP: |
||
1147 | case AML_INDEX_OP: |
||
1148 | |||
1149 | /* These Ops require Byte offsets */ |
||
1150 | |||
1151 | if (Op->Asl.CompileFlags & NODE_IS_BIT_OFFSET) |
||
1152 | { |
||
1153 | AslError (ASL_ERROR, ASL_MSG_BITS_TO_BYTES, Op, NULL); |
||
1154 | } |
||
1155 | break; |
||
1156 | |||
1157 | |||
1158 | default: |
||
1159 | /* Nothing to do for other opcodes */ |
||
1160 | break; |
||
1161 | } |
||
1162 | |||
1163 | /* Now convert this node to an integer whose value is the field offset */ |
||
1164 | |||
1165 | Op->Asl.AmlLength = 0; |
||
1166 | Op->Asl.ParseOpcode = PARSEOP_INTEGER; |
||
1167 | Op->Asl.Value.Integer = (UINT64) Temp; |
||
1168 | Op->Asl.CompileFlags |= NODE_IS_RESOURCE_FIELD; |
||
1169 | |||
1170 | OpcGenerateAmlOpcode (Op); |
||
1171 | } |
||
1172 | |||
1173 | /* 3) Check for a method invocation */ |
||
1174 | |||
1175 | else if ((((Op->Asl.ParseOpcode == PARSEOP_NAMESTRING) || (Op->Asl.ParseOpcode == PARSEOP_NAMESEG)) && |
||
1176 | (Node->Type == ACPI_TYPE_METHOD) && |
||
1177 | (Op->Asl.Parent) && |
||
1178 | (Op->Asl.Parent->Asl.ParseOpcode != PARSEOP_METHOD)) || |
||
1179 | |||
1180 | (Op->Asl.ParseOpcode == PARSEOP_METHODCALL)) |
||
1181 | { |
||
1182 | |||
1183 | /* |
||
1184 | * A reference to a method within one of these opcodes is not an |
||
1185 | * invocation of the method, it is simply a reference to the method. |
||
1186 | */ |
||
1187 | if ((Op->Asl.Parent) && |
||
1188 | ((Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_REFOF) || |
||
1189 | (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_DEREFOF) || |
||
1190 | (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_OBJECTTYPE))) |
||
1191 | { |
||
1192 | return (AE_OK); |
||
1193 | } |
||
1194 | /* |
||
1195 | * There are two types of method invocation: |
||
1196 | * 1) Invocation with arguments -- the parser recognizes this |
||
1197 | * as a METHODCALL. |
||
1198 | * 2) Invocation with no arguments --the parser cannot determine that |
||
1199 | * this is a method invocation, therefore we have to figure it out |
||
1200 | * here. |
||
1201 | */ |
||
1202 | if (Node->Type != ACPI_TYPE_METHOD) |
||
1203 | { |
||
1204 | sprintf (MsgBuffer, "%s is a %s", |
||
1205 | Op->Asl.ExternalName, AcpiUtGetTypeName (Node->Type)); |
||
1206 | |||
1207 | AslError (ASL_ERROR, ASL_MSG_NOT_METHOD, Op, MsgBuffer); |
||
1208 | return (AE_OK); |
||
1209 | } |
||
1210 | |||
1211 | /* Save the method node in the caller's op */ |
||
1212 | |||
1213 | Op->Asl.Node = Node; |
||
1214 | if (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CONDREFOF) |
||
1215 | { |
||
1216 | return (AE_OK); |
||
1217 | } |
||
1218 | |||
1219 | /* |
||
1220 | * This is a method invocation, with or without arguments. |
||
1221 | * Count the number of arguments, each appears as a child |
||
1222 | * under the parent node |
||
1223 | */ |
||
1224 | Op->Asl.ParseOpcode = PARSEOP_METHODCALL; |
||
1225 | UtSetParseOpName (Op); |
||
1226 | |||
1227 | PassedArgs = 0; |
||
1228 | NextOp = Op->Asl.Child; |
||
1229 | |||
1230 | while (NextOp) |
||
1231 | { |
||
1232 | PassedArgs++; |
||
1233 | NextOp = NextOp->Asl.Next; |
||
1234 | } |
||
1235 | |||
1236 | if (Node->Value != ASL_EXTERNAL_METHOD) |
||
1237 | { |
||
1238 | /* |
||
1239 | * Check the parsed arguments with the number expected by the |
||
1240 | * method declaration itself |
||
1241 | */ |
||
1242 | if (PassedArgs != Node->Value) |
||
1243 | { |
||
1244 | sprintf (MsgBuffer, "%s requires %u", Op->Asl.ExternalName, |
||
1245 | Node->Value); |
||
1246 | |||
1247 | if (PassedArgs < Node->Value) |
||
1248 | { |
||
1249 | AslError (ASL_ERROR, ASL_MSG_ARG_COUNT_LO, Op, MsgBuffer); |
||
1250 | } |
||
1251 | else |
||
1252 | { |
||
1253 | AslError (ASL_ERROR, ASL_MSG_ARG_COUNT_HI, Op, MsgBuffer); |
||
1254 | } |
||
1255 | } |
||
1256 | } |
||
1257 | } |
||
1258 | |||
1259 | /* 4) Check for an ASL Field definition */ |
||
1260 | |||
1261 | else if ((Op->Asl.Parent) && |
||
1262 | ((Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_FIELD) || |
||
1263 | (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_BANKFIELD))) |
||
1264 | { |
||
1265 | /* |
||
1266 | * Offset checking for fields. If the parent operation region has a |
||
1267 | * constant length (known at compile time), we can check fields |
||
1268 | * defined in that region against the region length. This will catch |
||
1269 | * fields and field units that cannot possibly fit within the region. |
||
1270 | * |
||
1271 | * Note: Index fields do not directly reference an operation region, |
||
1272 | * thus they are not included in this check. |
||
1273 | */ |
||
1274 | if (Op == Op->Asl.Parent->Asl.Child) |
||
1275 | { |
||
1276 | /* |
||
1277 | * This is the first child of the field node, which is |
||
1278 | * the name of the region. Get the parse node for the |
||
1279 | * region -- which contains the length of the region. |
||
1280 | */ |
||
1281 | OwningOp = Node->Op; |
||
1282 | Op->Asl.Parent->Asl.ExtraValue = |
||
1283 | ACPI_MUL_8 ((UINT32) OwningOp->Asl.Value.Integer); |
||
1284 | |||
1285 | /* Examine the field access width */ |
||
1286 | |||
1287 | switch ((UINT8) Op->Asl.Parent->Asl.Value.Integer) |
||
1288 | { |
||
1289 | case AML_FIELD_ACCESS_ANY: |
||
1290 | case AML_FIELD_ACCESS_BYTE: |
||
1291 | case AML_FIELD_ACCESS_BUFFER: |
||
1292 | default: |
||
1293 | MinimumLength = 1; |
||
1294 | break; |
||
1295 | |||
1296 | case AML_FIELD_ACCESS_WORD: |
||
1297 | MinimumLength = 2; |
||
1298 | break; |
||
1299 | |||
1300 | case AML_FIELD_ACCESS_DWORD: |
||
1301 | MinimumLength = 4; |
||
1302 | break; |
||
1303 | |||
1304 | case AML_FIELD_ACCESS_QWORD: |
||
1305 | MinimumLength = 8; |
||
1306 | break; |
||
1307 | } |
||
1308 | |||
1309 | /* |
||
1310 | * Is the region at least as big as the access width? |
||
1311 | * Note: DataTableRegions have 0 length |
||
1312 | */ |
||
1313 | if (((UINT32) OwningOp->Asl.Value.Integer) && |
||
1314 | ((UINT32) OwningOp->Asl.Value.Integer < MinimumLength)) |
||
1315 | { |
||
1316 | AslError (ASL_ERROR, ASL_MSG_FIELD_ACCESS_WIDTH, Op, NULL); |
||
1317 | } |
||
1318 | |||
1319 | /* |
||
1320 | * Check EC/CMOS/SMBUS fields to make sure that the correct |
||
1321 | * access type is used (BYTE for EC/CMOS, BUFFER for SMBUS) |
||
1322 | */ |
||
1323 | SpaceIdOp = OwningOp->Asl.Child->Asl.Next; |
||
1324 | switch ((UINT32) SpaceIdOp->Asl.Value.Integer) |
||
1325 | { |
||
2216 | Serge | 1326 | case ACPI_ADR_SPACE_EC: |
1327 | case ACPI_ADR_SPACE_CMOS: |
||
1498 | serge | 1328 | |
1329 | if ((UINT8) Op->Asl.Parent->Asl.Value.Integer != AML_FIELD_ACCESS_BYTE) |
||
1330 | { |
||
1331 | AslError (ASL_ERROR, ASL_MSG_REGION_BYTE_ACCESS, Op, NULL); |
||
1332 | } |
||
1333 | break; |
||
1334 | |||
2216 | Serge | 1335 | case ACPI_ADR_SPACE_SMBUS: |
1336 | case ACPI_ADR_SPACE_IPMI: |
||
1498 | serge | 1337 | |
1338 | if ((UINT8) Op->Asl.Parent->Asl.Value.Integer != AML_FIELD_ACCESS_BUFFER) |
||
1339 | { |
||
1340 | AslError (ASL_ERROR, ASL_MSG_REGION_BUFFER_ACCESS, Op, NULL); |
||
1341 | } |
||
1342 | break; |
||
1343 | |||
1344 | default: |
||
1345 | |||
1346 | /* Nothing to do for other address spaces */ |
||
1347 | break; |
||
1348 | } |
||
1349 | } |
||
1350 | else |
||
1351 | { |
||
1352 | /* |
||
1353 | * This is one element of the field list. Check to make sure |
||
1354 | * that it does not go beyond the end of the parent operation region. |
||
1355 | * |
||
1356 | * In the code below: |
||
1357 | * Op->Asl.Parent->Asl.ExtraValue - Region Length (bits) |
||
1358 | * Op->Asl.ExtraValue - Field start offset (bits) |
||
1359 | * Op->Asl.Child->Asl.Value.Integer32 - Field length (bits) |
||
1360 | * Op->Asl.Child->Asl.ExtraValue - Field access width (bits) |
||
1361 | */ |
||
1362 | if (Op->Asl.Parent->Asl.ExtraValue && Op->Asl.Child) |
||
1363 | { |
||
1364 | LkCheckFieldRange (Op, |
||
1365 | Op->Asl.Parent->Asl.ExtraValue, |
||
1366 | Op->Asl.ExtraValue, |
||
1367 | (UINT32) Op->Asl.Child->Asl.Value.Integer, |
||
1368 | Op->Asl.Child->Asl.ExtraValue); |
||
1369 | } |
||
1370 | } |
||
1371 | } |
||
1372 | |||
1373 | Op->Asl.Node = Node; |
||
1374 | return (Status); |
||
1375 | } |
||
1376 | |||
1377 | |||
1378 | /******************************************************************************* |
||
1379 | * |
||
1380 | * FUNCTION: LkNamespaceLocateEnd |
||
1381 | * |
||
1382 | * PARAMETERS: ASL_WALK_CALLBACK |
||
1383 | * |
||
1384 | * RETURN: Status |
||
1385 | * |
||
1386 | * DESCRIPTION: Ascending callback used during cross reference. We only |
||
1387 | * need to worry about scope management here. |
||
1388 | * |
||
1389 | ******************************************************************************/ |
||
1390 | |||
1391 | static ACPI_STATUS |
||
1392 | LkNamespaceLocateEnd ( |
||
1393 | ACPI_PARSE_OBJECT *Op, |
||
1394 | UINT32 Level, |
||
1395 | void *Context) |
||
1396 | { |
||
1397 | ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context; |
||
1398 | const ACPI_OPCODE_INFO *OpInfo; |
||
1399 | |||
1400 | |||
1401 | ACPI_FUNCTION_TRACE (LkNamespaceLocateEnd); |
||
1402 | |||
1403 | |||
1404 | /* We are only interested in opcodes that have an associated name */ |
||
1405 | |||
1406 | OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode); |
||
1407 | if (!(OpInfo->Flags & AML_NAMED)) |
||
1408 | { |
||
1409 | return (AE_OK); |
||
1410 | } |
||
1411 | |||
1412 | /* Not interested in name references, we did not open a scope for them */ |
||
1413 | |||
1414 | if ((Op->Asl.ParseOpcode == PARSEOP_NAMESTRING) || |
||
1415 | (Op->Asl.ParseOpcode == PARSEOP_NAMESEG) || |
||
1416 | (Op->Asl.ParseOpcode == PARSEOP_METHODCALL)) |
||
1417 | { |
||
1418 | return (AE_OK); |
||
1419 | } |
||
1420 | |||
1421 | /* Pop the scope stack if necessary */ |
||
1422 | |||
1423 | if (AcpiNsOpensScope (AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode))) |
||
1424 | { |
||
1425 | |||
1426 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
||
1427 | "%s: Popping scope for Op %p\n", |
||
1428 | AcpiUtGetTypeName (OpInfo->ObjectType), Op)); |
||
1429 | |||
1430 | (void) AcpiDsScopeStackPop (WalkState); |
||
1431 | } |
||
1432 | |||
1433 | return (AE_OK); |
||
1434 | }>>--> |
||
1435 |