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1498 | serge | 1 | |
2 | * |
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3 | * Module Name: exoparg1 - AML execution - opcodes with 1 argument |
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4 | * |
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5 | *****************************************************************************/ |
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6 | |||
7 | |||
8 | * |
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9 | * 1. Copyright Notice |
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10 | * |
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11 | * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp. |
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2216 | Serge | 12 | * All rights reserved. |
1498 | serge | 13 | * |
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 | |||
118 | |||
119 | #include "accommon.h" |
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120 | #include "acparser.h" |
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121 | #include "acdispat.h" |
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122 | #include "acinterp.h" |
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123 | #include "amlcode.h" |
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124 | #include "acnamesp.h" |
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125 | |||
126 | |||
127 | |||
128 | ACPI_MODULE_NAME ("exoparg1") |
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129 | |||
130 | |||
131 | |||
132 | * Naming convention for AML interpreter execution routines. |
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133 | * |
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134 | * The routines that begin execution of AML opcodes are named with a common |
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135 | * convention based upon the number of arguments, the number of target operands, |
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136 | * and whether or not a value is returned: |
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137 | * |
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138 | * AcpiExOpcode_xA_yT_zR |
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139 | * |
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140 | * Where: |
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141 | * |
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142 | * xA - ARGUMENTS: The number of arguments (input operands) that are |
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143 | * required for this opcode type (0 through 6 args). |
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144 | * yT - TARGETS: The number of targets (output operands) that are required |
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145 | * for this opcode type (0, 1, or 2 targets). |
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146 | * zR - RETURN VALUE: Indicates whether this opcode type returns a value |
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147 | * as the function return (0 or 1). |
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148 | * |
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149 | * The AcpiExOpcode* functions are called via the Dispatcher component with |
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150 | * fully resolved operands. |
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151 | !*/ |
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152 | |||
153 | |||
154 | * |
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155 | * FUNCTION: AcpiExOpcode_0A_0T_1R |
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156 | * |
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157 | * PARAMETERS: WalkState - Current state (contains AML opcode) |
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158 | * |
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159 | * RETURN: Status |
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160 | * |
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161 | * DESCRIPTION: Execute operator with no operands, one return value |
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162 | * |
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163 | ******************************************************************************/ |
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164 | |||
165 | |||
166 | AcpiExOpcode_0A_0T_1R ( |
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167 | ACPI_WALK_STATE *WalkState) |
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168 | { |
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169 | ACPI_STATUS Status = AE_OK; |
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170 | ACPI_OPERAND_OBJECT *ReturnDesc = NULL; |
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171 | |||
172 | |||
173 | |||
174 | AcpiPsGetOpcodeName (WalkState->Opcode)); |
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175 | |||
176 | |||
177 | |||
178 | |||
179 | |||
180 | { |
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181 | case AML_TIMER_OP: /* Timer () */ |
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182 | |||
183 | |||
184 | |||
185 | |||
186 | if (!ReturnDesc) |
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187 | { |
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188 | Status = AE_NO_MEMORY; |
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189 | goto Cleanup; |
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190 | } |
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191 | break; |
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192 | |||
193 | |||
194 | |||
195 | |||
196 | WalkState->Opcode)); |
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197 | Status = AE_AML_BAD_OPCODE; |
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198 | break; |
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199 | } |
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200 | |||
201 | |||
202 | |||
203 | |||
204 | |||
205 | |||
206 | { |
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207 | AcpiUtRemoveReference (ReturnDesc); |
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208 | WalkState->ResultObj = NULL; |
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209 | } |
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210 | else |
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211 | { |
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212 | /* Save the return value */ |
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213 | |||
214 | |||
215 | } |
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216 | |||
217 | |||
218 | } |
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219 | |||
220 | |||
221 | |||
222 | * |
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223 | * FUNCTION: AcpiExOpcode_1A_0T_0R |
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224 | * |
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225 | * PARAMETERS: WalkState - Current state (contains AML opcode) |
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226 | * |
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227 | * RETURN: Status |
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228 | * |
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229 | * DESCRIPTION: Execute Type 1 monadic operator with numeric operand on |
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230 | * object stack |
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231 | * |
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232 | ******************************************************************************/ |
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233 | |||
234 | |||
235 | AcpiExOpcode_1A_0T_0R ( |
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236 | ACPI_WALK_STATE *WalkState) |
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237 | { |
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238 | ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; |
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239 | ACPI_STATUS Status = AE_OK; |
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240 | |||
241 | |||
242 | |||
243 | AcpiPsGetOpcodeName (WalkState->Opcode)); |
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244 | |||
245 | |||
246 | |||
247 | |||
248 | |||
249 | { |
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250 | case AML_RELEASE_OP: /* Release (MutexObject) */ |
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251 | |||
252 | |||
253 | break; |
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254 | |||
255 | |||
256 | |||
257 | |||
258 | |||
259 | break; |
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260 | |||
261 | |||
262 | |||
263 | |||
264 | |||
265 | break; |
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266 | |||
267 | |||
268 | |||
269 | |||
270 | |||
271 | break; |
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272 | |||
273 | |||
274 | |||
275 | |||
276 | |||
277 | break; |
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278 | |||
279 | |||
280 | |||
281 | |||
282 | |||
283 | break; |
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284 | |||
285 | |||
286 | |||
287 | |||
288 | |||
289 | WalkState->Opcode)); |
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290 | Status = AE_AML_BAD_OPCODE; |
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291 | break; |
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292 | } |
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293 | |||
294 | |||
295 | } |
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296 | |||
297 | |||
298 | |||
299 | * |
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300 | * FUNCTION: AcpiExOpcode_1A_1T_0R |
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301 | * |
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302 | * PARAMETERS: WalkState - Current state (contains AML opcode) |
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303 | * |
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304 | * RETURN: Status |
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305 | * |
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306 | * DESCRIPTION: Execute opcode with one argument, one target, and no |
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307 | * return value. |
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308 | * |
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309 | ******************************************************************************/ |
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310 | |||
311 | |||
312 | AcpiExOpcode_1A_1T_0R ( |
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313 | ACPI_WALK_STATE *WalkState) |
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314 | { |
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315 | ACPI_STATUS Status = AE_OK; |
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316 | ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; |
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317 | |||
318 | |||
319 | |||
320 | AcpiPsGetOpcodeName (WalkState->Opcode)); |
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321 | |||
322 | |||
323 | |||
324 | |||
325 | |||
326 | { |
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327 | case AML_LOAD_OP: |
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328 | |||
329 | |||
330 | break; |
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331 | |||
332 | |||
333 | |||
334 | |||
335 | WalkState->Opcode)); |
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336 | Status = AE_AML_BAD_OPCODE; |
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337 | goto Cleanup; |
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338 | } |
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339 | |||
340 | |||
341 | |||
342 | |||
343 | |||
344 | } |
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345 | |||
346 | |||
347 | |||
348 | * |
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349 | * FUNCTION: AcpiExOpcode_1A_1T_1R |
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350 | * |
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351 | * PARAMETERS: WalkState - Current state (contains AML opcode) |
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352 | * |
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353 | * RETURN: Status |
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354 | * |
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355 | * DESCRIPTION: Execute opcode with one argument, one target, and a |
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356 | * return value. |
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357 | * |
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358 | ******************************************************************************/ |
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359 | |||
360 | |||
361 | AcpiExOpcode_1A_1T_1R ( |
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362 | ACPI_WALK_STATE *WalkState) |
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363 | { |
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364 | ACPI_STATUS Status = AE_OK; |
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365 | ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; |
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366 | ACPI_OPERAND_OBJECT *ReturnDesc = NULL; |
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367 | ACPI_OPERAND_OBJECT *ReturnDesc2 = NULL; |
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368 | UINT32 Temp32; |
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369 | UINT32 i; |
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370 | UINT64 PowerOfTen; |
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371 | UINT64 Digit; |
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372 | |||
373 | |||
374 | |||
375 | AcpiPsGetOpcodeName (WalkState->Opcode)); |
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376 | |||
377 | |||
378 | |||
379 | |||
380 | |||
381 | { |
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382 | case AML_BIT_NOT_OP: |
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383 | case AML_FIND_SET_LEFT_BIT_OP: |
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384 | case AML_FIND_SET_RIGHT_BIT_OP: |
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385 | case AML_FROM_BCD_OP: |
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386 | case AML_TO_BCD_OP: |
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387 | case AML_COND_REF_OF_OP: |
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388 | |||
389 | |||
390 | |||
391 | |||
392 | if (!ReturnDesc) |
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393 | { |
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394 | Status = AE_NO_MEMORY; |
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395 | goto Cleanup; |
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396 | } |
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397 | |||
398 | |||
399 | { |
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400 | case AML_BIT_NOT_OP: /* Not (Operand, Result) */ |
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401 | |||
402 | |||
403 | break; |
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404 | |||
405 | |||
406 | |||
407 | |||
408 | |||
409 | |||
410 | |||
411 | * Acpi specification describes Integer type as a little |
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412 | * endian unsigned value, so this boundary condition is valid. |
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413 | */ |
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414 | for (Temp32 = 0; ReturnDesc->Integer.Value && |
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415 | Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32) |
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416 | { |
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417 | ReturnDesc->Integer.Value >>= 1; |
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418 | } |
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419 | |||
420 | |||
421 | break; |
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422 | |||
423 | |||
424 | |||
425 | |||
426 | |||
427 | |||
428 | |||
429 | * The Acpi specification describes Integer type as a little |
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430 | * endian unsigned value, so this boundary condition is valid. |
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431 | */ |
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432 | for (Temp32 = 0; ReturnDesc->Integer.Value && |
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433 | Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32) |
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434 | { |
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435 | ReturnDesc->Integer.Value <<= 1; |
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436 | } |
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437 | |||
438 | |||
439 | |||
440 | |||
441 | Temp32 == 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - Temp32; |
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442 | break; |
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443 | |||
444 | |||
445 | |||
446 | |||
447 | |||
448 | * The 64-bit ACPI integer can hold 16 4-bit BCD characters |
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449 | * (if table is 32-bit, integer can hold 8 BCD characters) |
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450 | * Convert each 4-bit BCD value |
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451 | */ |
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452 | PowerOfTen = 1; |
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453 | ReturnDesc->Integer.Value = 0; |
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454 | Digit = Operand[0]->Integer.Value; |
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455 | |||
456 | |||
457 | |||
458 | |||
459 | { |
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460 | /* Get the least significant 4-bit BCD digit */ |
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461 | |||
462 | |||
463 | |||
464 | |||
465 | |||
466 | |||
467 | { |
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468 | ACPI_ERROR ((AE_INFO, |
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469 | "BCD digit too large (not decimal): 0x%X", |
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470 | Temp32)); |
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471 | |||
472 | |||
473 | goto Cleanup; |
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474 | } |
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475 | |||
476 | |||
477 | |||
478 | |||
479 | (((UINT64) Temp32) * PowerOfTen); |
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480 | |||
481 | |||
482 | |||
483 | |||
484 | |||
485 | |||
486 | |||
487 | |||
488 | } |
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489 | break; |
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490 | |||
491 | |||
492 | |||
493 | |||
494 | |||
495 | Digit = Operand[0]->Integer.Value; |
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496 | |||
497 | |||
498 | |||
499 | |||
500 | { |
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501 | (void) AcpiUtShortDivide (Digit, 10, &Digit, &Temp32); |
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502 | |||
503 | |||
504 | * Insert the BCD digit that resides in the |
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505 | * remainder from above |
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506 | */ |
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507 | ReturnDesc->Integer.Value |= |
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508 | (((UINT64) Temp32) << ACPI_MUL_4 (i)); |
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509 | } |
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510 | |||
511 | |||
512 | |||
513 | |||
514 | { |
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515 | ACPI_ERROR ((AE_INFO, |
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516 | "Integer too large to convert to BCD: 0x%8.8X%8.8X", |
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517 | ACPI_FORMAT_UINT64 (Operand[0]->Integer.Value))); |
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518 | Status = AE_AML_NUMERIC_OVERFLOW; |
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519 | goto Cleanup; |
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520 | } |
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521 | break; |
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522 | |||
523 | |||
524 | |||
525 | |||
526 | |||
527 | * This op is a little strange because the internal return value is |
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528 | * different than the return value stored in the result descriptor |
||
529 | * (There are really two return values) |
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530 | */ |
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531 | if ((ACPI_NAMESPACE_NODE *) Operand[0] == AcpiGbl_RootNode) |
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532 | { |
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533 | /* |
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534 | * This means that the object does not exist in the namespace, |
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535 | * return FALSE |
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536 | */ |
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537 | ReturnDesc->Integer.Value = 0; |
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538 | goto Cleanup; |
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539 | } |
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540 | |||
541 | |||
542 | |||
543 | |||
544 | &ReturnDesc2, WalkState); |
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545 | if (ACPI_FAILURE (Status)) |
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546 | { |
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547 | goto Cleanup; |
||
548 | } |
||
549 | |||
550 | |||
551 | AcpiUtRemoveReference (ReturnDesc2); |
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552 | |||
553 | |||
554 | |||
555 | |||
556 | goto Cleanup; |
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557 | |||
558 | |||
559 | |||
560 | /* No other opcodes get here */ |
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561 | break; |
||
562 | } |
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563 | break; |
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564 | |||
565 | |||
566 | |||
567 | |||
568 | |||
569 | * A store operand is typically a number, string, buffer or lvalue |
||
570 | * Be careful about deleting the source object, |
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571 | * since the object itself may have been stored. |
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572 | */ |
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573 | Status = AcpiExStore (Operand[0], Operand[1], WalkState); |
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574 | if (ACPI_FAILURE (Status)) |
||
575 | { |
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576 | return_ACPI_STATUS (Status); |
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577 | } |
||
578 | |||
579 | |||
580 | |||
581 | |||
582 | { |
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583 | /* |
||
584 | * Normally, we would remove a reference on the Operand[0] |
||
585 | * parameter; But since it is being used as the internal return |
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586 | * object (meaning we would normally increment it), the two |
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587 | * cancel out, and we simply don't do anything. |
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588 | */ |
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589 | WalkState->ResultObj = Operand[0]; |
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590 | WalkState->Operands[0] = NULL; /* Prevent deletion */ |
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591 | } |
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592 | return_ACPI_STATUS (Status); |
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593 | |||
594 | |||
595 | |||
596 | * ACPI 2.0 Opcodes |
||
597 | */ |
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598 | case AML_COPY_OP: /* Copy (Source, Target) */ |
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599 | |||
600 | |||
601 | WalkState); |
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602 | break; |
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603 | |||
604 | |||
605 | |||
606 | |||
607 | |||
608 | ACPI_EXPLICIT_CONVERT_DECIMAL); |
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609 | if (ReturnDesc == Operand[0]) |
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610 | { |
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611 | /* No conversion performed, add ref to handle return value */ |
||
612 | AcpiUtAddReference (ReturnDesc); |
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613 | } |
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614 | break; |
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615 | |||
616 | |||
617 | |||
618 | |||
619 | |||
620 | ACPI_EXPLICIT_CONVERT_HEX); |
||
621 | if (ReturnDesc == Operand[0]) |
||
622 | { |
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623 | /* No conversion performed, add ref to handle return value */ |
||
624 | AcpiUtAddReference (ReturnDesc); |
||
625 | } |
||
626 | break; |
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627 | |||
628 | |||
629 | |||
630 | |||
631 | |||
632 | if (ReturnDesc == Operand[0]) |
||
633 | { |
||
634 | /* No conversion performed, add ref to handle return value */ |
||
635 | AcpiUtAddReference (ReturnDesc); |
||
636 | } |
||
637 | break; |
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638 | |||
639 | |||
640 | |||
641 | |||
642 | |||
643 | ACPI_ANY_BASE); |
||
644 | if (ReturnDesc == Operand[0]) |
||
645 | { |
||
646 | /* No conversion performed, add ref to handle return value */ |
||
647 | AcpiUtAddReference (ReturnDesc); |
||
648 | } |
||
649 | break; |
||
650 | |||
651 | |||
652 | |||
653 | case AML_SHIFT_RIGHT_BIT_OP: /* ShiftRightBit (Source, BitNum) */ |
||
654 | |||
655 | |||
656 | |||
657 | |||
658 | "%s is obsolete and not implemented", |
||
659 | AcpiPsGetOpcodeName (WalkState->Opcode))); |
||
660 | Status = AE_SUPPORT; |
||
661 | goto Cleanup; |
||
662 | |||
663 | |||
664 | |||
665 | |||
666 | |||
667 | WalkState->Opcode)); |
||
668 | Status = AE_AML_BAD_OPCODE; |
||
669 | goto Cleanup; |
||
670 | } |
||
671 | |||
672 | |||
673 | { |
||
674 | /* Store the return value computed above into the target object */ |
||
675 | |||
676 | |||
677 | } |
||
678 | |||
679 | |||
680 | |||
681 | |||
682 | |||
683 | |||
684 | |||
685 | { |
||
686 | AcpiUtRemoveReference (ReturnDesc); |
||
687 | } |
||
688 | |||
689 | |||
690 | |||
691 | |||
692 | { |
||
693 | WalkState->ResultObj = ReturnDesc; |
||
694 | } |
||
695 | |||
696 | |||
697 | } |
||
698 | |||
699 | |||
700 | |||
701 | * |
||
702 | * FUNCTION: AcpiExOpcode_1A_0T_1R |
||
703 | * |
||
704 | * PARAMETERS: WalkState - Current state (contains AML opcode) |
||
705 | * |
||
706 | * RETURN: Status |
||
707 | * |
||
708 | * DESCRIPTION: Execute opcode with one argument, no target, and a return value |
||
709 | * |
||
710 | ******************************************************************************/ |
||
711 | |||
712 | |||
713 | AcpiExOpcode_1A_0T_1R ( |
||
714 | ACPI_WALK_STATE *WalkState) |
||
715 | { |
||
716 | ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; |
||
717 | ACPI_OPERAND_OBJECT *TempDesc; |
||
718 | ACPI_OPERAND_OBJECT *ReturnDesc = NULL; |
||
719 | ACPI_STATUS Status = AE_OK; |
||
720 | UINT32 Type; |
||
721 | UINT64 Value; |
||
722 | |||
723 | |||
724 | |||
725 | AcpiPsGetOpcodeName (WalkState->Opcode)); |
||
726 | |||
727 | |||
728 | |||
729 | |||
730 | |||
731 | { |
||
732 | case AML_LNOT_OP: /* LNot (Operand) */ |
||
733 | |||
734 | |||
735 | if (!ReturnDesc) |
||
736 | { |
||
737 | Status = AE_NO_MEMORY; |
||
738 | goto Cleanup; |
||
739 | } |
||
740 | |||
741 | |||
742 | * Set result to ONES (TRUE) if Value == 0. Note: |
||
743 | * ReturnDesc->Integer.Value is initially == 0 (FALSE) from above. |
||
744 | */ |
||
745 | if (!Operand[0]->Integer.Value) |
||
746 | { |
||
747 | ReturnDesc->Integer.Value = ACPI_UINT64_MAX; |
||
748 | } |
||
749 | break; |
||
750 | |||
751 | |||
752 | |||
753 | case AML_INCREMENT_OP: /* Increment (Operand) */ |
||
754 | |||
755 | |||
756 | * Create a new integer. Can't just get the base integer and |
||
757 | * increment it because it may be an Arg or Field. |
||
758 | */ |
||
759 | ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); |
||
760 | if (!ReturnDesc) |
||
761 | { |
||
762 | Status = AE_NO_MEMORY; |
||
763 | goto Cleanup; |
||
764 | } |
||
765 | |||
766 | |||
767 | * Since we are expecting a Reference operand, it can be either a |
||
768 | * NS Node or an internal object. |
||
769 | */ |
||
770 | TempDesc = Operand[0]; |
||
771 | if (ACPI_GET_DESCRIPTOR_TYPE (TempDesc) == ACPI_DESC_TYPE_OPERAND) |
||
772 | { |
||
773 | /* Internal reference object - prevent deletion */ |
||
774 | |||
775 | |||
776 | } |
||
777 | |||
778 | |||
779 | * Convert the Reference operand to an Integer (This removes a |
||
780 | * reference on the Operand[0] object) |
||
781 | * |
||
782 | * NOTE: We use LNOT_OP here in order to force resolution of the |
||
783 | * reference operand to an actual integer. |
||
784 | */ |
||
785 | Status = AcpiExResolveOperands (AML_LNOT_OP, &TempDesc, WalkState); |
||
786 | if (ACPI_FAILURE (Status)) |
||
787 | { |
||
788 | ACPI_EXCEPTION ((AE_INFO, Status, |
||
789 | "While resolving operands for [%s]", |
||
790 | AcpiPsGetOpcodeName (WalkState->Opcode))); |
||
791 | |||
792 | |||
793 | } |
||
794 | |||
795 | |||
796 | * TempDesc is now guaranteed to be an Integer object -- |
||
797 | * Perform the actual increment or decrement |
||
798 | */ |
||
799 | if (WalkState->Opcode == AML_INCREMENT_OP) |
||
800 | { |
||
801 | ReturnDesc->Integer.Value = TempDesc->Integer.Value +1; |
||
802 | } |
||
803 | else |
||
804 | { |
||
805 | ReturnDesc->Integer.Value = TempDesc->Integer.Value -1; |
||
806 | } |
||
807 | |||
808 | |||
809 | |||
810 | |||
811 | |||
812 | |||
813 | * Store the result back (indirectly) through the original |
||
814 | * Reference object |
||
815 | */ |
||
816 | Status = AcpiExStore (ReturnDesc, Operand[0], WalkState); |
||
817 | break; |
||
818 | |||
819 | |||
820 | |||
821 | |||
822 | |||
823 | * Note: The operand is not resolved at this point because we want to |
||
824 | * get the associated object, not its value. For example, we don't |
||
825 | * want to resolve a FieldUnit to its value, we want the actual |
||
826 | * FieldUnit object. |
||
827 | */ |
||
828 | |||
829 | |||
830 | |||
831 | |||
832 | if (ACPI_FAILURE (Status)) |
||
833 | { |
||
834 | goto Cleanup; |
||
835 | } |
||
836 | |||
837 | |||
838 | |||
839 | |||
840 | if (!ReturnDesc) |
||
841 | { |
||
842 | Status = AE_NO_MEMORY; |
||
843 | goto Cleanup; |
||
844 | } |
||
845 | break; |
||
846 | |||
847 | |||
848 | |||
849 | |||
850 | |||
851 | * Note: The operand is not resolved at this point because we want to |
||
852 | * get the associated object, not its value. |
||
853 | */ |
||
854 | |||
855 | |||
856 | |||
857 | |||
858 | Operand[0], &Type, &TempDesc); |
||
859 | if (ACPI_FAILURE (Status)) |
||
860 | { |
||
861 | goto Cleanup; |
||
862 | } |
||
863 | |||
864 | |||
865 | * The type of the base object must be integer, buffer, string, or |
||
866 | * package. All others are not supported. |
||
867 | * |
||
868 | * NOTE: Integer is not specifically supported by the ACPI spec, |
||
869 | * but is supported implicitly via implicit operand conversion. |
||
870 | * rather than bother with conversion, we just use the byte width |
||
871 | * global (4 or 8 bytes). |
||
872 | */ |
||
873 | switch (Type) |
||
874 | { |
||
875 | case ACPI_TYPE_INTEGER: |
||
876 | Value = AcpiGbl_IntegerByteWidth; |
||
877 | break; |
||
878 | |||
879 | |||
880 | Value = TempDesc->String.Length; |
||
881 | break; |
||
882 | |||
883 | |||
884 | |||
885 | |||
886 | |||
887 | |||
888 | Value = TempDesc->Buffer.Length; |
||
889 | break; |
||
890 | |||
891 | |||
892 | |||
893 | |||
894 | |||
895 | |||
896 | Value = TempDesc->Package.Count; |
||
897 | break; |
||
898 | |||
899 | |||
900 | ACPI_ERROR ((AE_INFO, |
||
901 | "Operand must be Buffer/Integer/String/Package - found type %s", |
||
902 | AcpiUtGetTypeName (Type))); |
||
903 | Status = AE_AML_OPERAND_TYPE; |
||
904 | goto Cleanup; |
||
905 | } |
||
906 | |||
907 | |||
908 | { |
||
909 | goto Cleanup; |
||
910 | } |
||
911 | |||
912 | |||
913 | * Now that we have the size of the object, create a result |
||
914 | * object to hold the value |
||
915 | */ |
||
916 | ReturnDesc = AcpiUtCreateIntegerObject (Value); |
||
917 | if (!ReturnDesc) |
||
918 | { |
||
919 | Status = AE_NO_MEMORY; |
||
920 | goto Cleanup; |
||
921 | } |
||
922 | break; |
||
923 | |||
924 | |||
925 | |||
926 | |||
927 | |||
928 | if (ACPI_FAILURE (Status)) |
||
929 | { |
||
930 | goto Cleanup; |
||
931 | } |
||
932 | break; |
||
933 | |||
934 | |||
935 | |||
936 | |||
937 | |||
938 | |||
939 | |||
940 | { |
||
941 | TempDesc = AcpiNsGetAttachedObject ( |
||
942 | (ACPI_NAMESPACE_NODE *) Operand[0]); |
||
943 | if (TempDesc && |
||
944 | ((TempDesc->Common.Type == ACPI_TYPE_STRING) || |
||
945 | (TempDesc->Common.Type == ACPI_TYPE_LOCAL_REFERENCE))) |
||
946 | { |
||
947 | Operand[0] = TempDesc; |
||
948 | AcpiUtAddReference (TempDesc); |
||
949 | } |
||
950 | else |
||
951 | { |
||
952 | Status = AE_AML_OPERAND_TYPE; |
||
953 | goto Cleanup; |
||
954 | } |
||
955 | } |
||
956 | else |
||
957 | { |
||
958 | switch ((Operand[0])->Common.Type) |
||
959 | { |
||
960 | case ACPI_TYPE_LOCAL_REFERENCE: |
||
961 | /* |
||
962 | * This is a DerefOf (LocalX | ArgX) |
||
963 | * |
||
964 | * Must resolve/dereference the local/arg reference first |
||
965 | */ |
||
966 | switch (Operand[0]->Reference.Class) |
||
967 | { |
||
968 | case ACPI_REFCLASS_LOCAL: |
||
969 | case ACPI_REFCLASS_ARG: |
||
970 | |||
971 | |||
972 | |||
973 | |||
974 | Operand[0]->Reference.Class, |
||
975 | Operand[0]->Reference.Value, |
||
976 | WalkState, &TempDesc); |
||
977 | if (ACPI_FAILURE (Status)) |
||
978 | { |
||
979 | goto Cleanup; |
||
980 | } |
||
981 | |||
982 | |||
983 | * Delete our reference to the input object and |
||
984 | * point to the object just retrieved |
||
985 | */ |
||
986 | AcpiUtRemoveReference (Operand[0]); |
||
987 | Operand[0] = TempDesc; |
||
988 | break; |
||
989 | |||
990 | |||
991 | |||
992 | |||
993 | |||
994 | |||
995 | AcpiUtRemoveReference (Operand[0]); |
||
996 | Operand[0] = TempDesc; |
||
997 | break; |
||
998 | |||
999 | |||
1000 | |||
1001 | |||
1002 | break; |
||
1003 | } |
||
1004 | break; |
||
1005 | |||
1006 | |||
1007 | break; |
||
1008 | |||
1009 | |||
1010 | Status = AE_AML_OPERAND_TYPE; |
||
1011 | goto Cleanup; |
||
1012 | } |
||
1013 | } |
||
1014 | |||
1015 | |||
1016 | { |
||
1017 | if ((Operand[0])->Common.Type == ACPI_TYPE_STRING) |
||
1018 | { |
||
1019 | /* |
||
1020 | * This is a DerefOf (String). The string is a reference |
||
1021 | * to a named ACPI object. |
||
1022 | * |
||
1023 | * 1) Find the owning Node |
||
1024 | * 2) Dereference the node to an actual object. Could be a |
||
1025 | * Field, so we need to resolve the node to a value. |
||
1026 | */ |
||
1027 | Status = AcpiNsGetNode (WalkState->ScopeInfo->Scope.Node, |
||
1028 | Operand[0]->String.Pointer, |
||
1029 | ACPI_NS_SEARCH_PARENT, |
||
1030 | ACPI_CAST_INDIRECT_PTR ( |
||
1031 | ACPI_NAMESPACE_NODE, &ReturnDesc)); |
||
1032 | if (ACPI_FAILURE (Status)) |
||
1033 | { |
||
1034 | goto Cleanup; |
||
1035 | } |
||
1036 | |||
1037 | |||
1038 | ACPI_CAST_INDIRECT_PTR ( |
||
1039 | ACPI_NAMESPACE_NODE, &ReturnDesc), |
||
1040 | WalkState); |
||
1041 | goto Cleanup; |
||
1042 | } |
||
1043 | } |
||
1044 | |||
1045 | |||
1046 | |||
1047 | |||
1048 | { |
||
1049 | /* |
||
1050 | * This is a DerefOf (ObjectReference) |
||
1051 | * Get the actual object from the Node (This is the dereference). |
||
1052 | * This case may only happen when a LocalX or ArgX is |
||
1053 | * dereferenced above. |
||
1054 | */ |
||
1055 | ReturnDesc = AcpiNsGetAttachedObject ( |
||
1056 | (ACPI_NAMESPACE_NODE *) Operand[0]); |
||
1057 | AcpiUtAddReference (ReturnDesc); |
||
1058 | } |
||
1059 | else |
||
1060 | { |
||
1061 | /* |
||
1062 | * This must be a reference object produced by either the |
||
1063 | * Index() or RefOf() operator |
||
1064 | */ |
||
1065 | switch (Operand[0]->Reference.Class) |
||
1066 | { |
||
1067 | case ACPI_REFCLASS_INDEX: |
||
1068 | |||
1069 | |||
1070 | * The target type for the Index operator must be |
||
1071 | * either a Buffer or a Package |
||
1072 | */ |
||
1073 | switch (Operand[0]->Reference.TargetType) |
||
1074 | { |
||
1075 | case ACPI_TYPE_BUFFER_FIELD: |
||
1076 | |||
1077 | |||
1078 | |||
1079 | |||
1080 | * Create a new object that contains one element of the |
||
1081 | * buffer -- the element pointed to by the index. |
||
1082 | * |
||
1083 | * NOTE: index into a buffer is NOT a pointer to a |
||
1084 | * sub-buffer of the main buffer, it is only a pointer to a |
||
1085 | * single element (byte) of the buffer! |
||
1086 | * |
||
1087 | * Since we are returning the value of the buffer at the |
||
1088 | * indexed location, we don't need to add an additional |
||
1089 | * reference to the buffer itself. |
||
1090 | */ |
||
1091 | ReturnDesc = AcpiUtCreateIntegerObject ((UINT64) |
||
1092 | TempDesc->Buffer.Pointer[Operand[0]->Reference.Value]); |
||
1093 | if (!ReturnDesc) |
||
1094 | { |
||
1095 | Status = AE_NO_MEMORY; |
||
1096 | goto Cleanup; |
||
1097 | } |
||
1098 | break; |
||
1099 | |||
1100 | |||
1101 | |||
1102 | |||
1103 | |||
1104 | * Return the referenced element of the package. We must |
||
1105 | * add another reference to the referenced object, however. |
||
1106 | */ |
||
1107 | ReturnDesc = *(Operand[0]->Reference.Where); |
||
1108 | if (ReturnDesc) |
||
1109 | { |
||
1110 | AcpiUtAddReference (ReturnDesc); |
||
1111 | } |
||
1112 | break; |
||
1113 | |||
1114 | |||
1115 | |||
1116 | |||
1117 | |||
1118 | "Unknown Index TargetType 0x%X in reference object %p", |
||
1119 | Operand[0]->Reference.TargetType, Operand[0])); |
||
1120 | Status = AE_AML_OPERAND_TYPE; |
||
1121 | goto Cleanup; |
||
1122 | } |
||
1123 | break; |
||
1124 | |||
1125 | |||
1126 | |||
1127 | |||
1128 | |||
1129 | |||
1130 | |||
1131 | ACPI_DESC_TYPE_NAMED) |
||
1132 | { |
||
1133 | ReturnDesc = AcpiNsGetAttachedObject ( |
||
1134 | (ACPI_NAMESPACE_NODE *) ReturnDesc); |
||
1135 | } |
||
1136 | |||
1137 | |||
1138 | |||
1139 | |||
1140 | break; |
||
1141 | |||
1142 | |||
1143 | |||
1144 | ACPI_ERROR ((AE_INFO, |
||
1145 | "Unknown class in reference(%p) - 0x%2.2X", |
||
1146 | Operand[0], Operand[0]->Reference.Class)); |
||
1147 | |||
1148 | |||
1149 | goto Cleanup; |
||
1150 | } |
||
1151 | } |
||
1152 | break; |
||
1153 | |||
1154 | |||
1155 | |||
1156 | |||
1157 | |||
1158 | WalkState->Opcode)); |
||
1159 | Status = AE_AML_BAD_OPCODE; |
||
1160 | goto Cleanup; |
||
1161 | } |
||
1162 | |||
1163 | |||
1164 | |||
1165 | |||
1166 | |||
1167 | |||
1168 | |||
1169 | { |
||
1170 | AcpiUtRemoveReference (ReturnDesc); |
||
1171 | } |
||
1172 | |||
1173 | |||
1174 | |||
1175 | |||
1176 | { |
||
1177 | WalkState->ResultObj = ReturnDesc; |
||
1178 | } |
||
1179 | |||
1180 | |||
1181 | }><>>>=><=>>> |
||
1182 |