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Rev | Author | Line No. | Line |
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1498 | serge | 1 | /****************************************************************************** |
2 | * |
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3 | * Module Name: dswexec - Dispatcher method execution callbacks; |
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4 | * dispatch to interpreter. |
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5 | * |
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6 | *****************************************************************************/ |
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7 | |||
8 | /****************************************************************************** |
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9 | * |
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10 | * 1. Copyright Notice |
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11 | * |
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2216 | Serge | 12 | * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp. |
1498 | serge | 13 | * All rights reserved. |
14 | * |
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15 | * 2. License |
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16 | * |
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17 | * 2.1. This is your license from Intel Corp. under its intellectual property |
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18 | * rights. You may have additional license terms from the party that provided |
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19 | * you this software, covering your right to use that party's intellectual |
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20 | * property rights. |
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21 | * |
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22 | * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
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23 | * copy of the source code appearing in this file ("Covered Code") an |
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24 | * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
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25 | * base code distributed originally by Intel ("Original Intel Code") to copy, |
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26 | * make derivatives, distribute, use and display any portion of the Covered |
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27 | * Code in any form, with the right to sublicense such rights; and |
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28 | * |
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29 | * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
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30 | * license (with the right to sublicense), under only those claims of Intel |
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31 | * patents that are infringed by the Original Intel Code, to make, use, sell, |
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32 | * offer to sell, and import the Covered Code and derivative works thereof |
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33 | * solely to the minimum extent necessary to exercise the above copyright |
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34 | * license, and in no event shall the patent license extend to any additions |
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35 | * to or modifications of the Original Intel Code. No other license or right |
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36 | * is granted directly or by implication, estoppel or otherwise; |
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37 | * |
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38 | * The above copyright and patent license is granted only if the following |
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39 | * conditions are met: |
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40 | * |
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41 | * 3. Conditions |
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42 | * |
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43 | * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
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44 | * Redistribution of source code of any substantial portion of the Covered |
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45 | * Code or modification with rights to further distribute source must include |
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46 | * the above Copyright Notice, the above License, this list of Conditions, |
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47 | * and the following Disclaimer and Export Compliance provision. In addition, |
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48 | * Licensee must cause all Covered Code to which Licensee contributes to |
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49 | * contain a file documenting the changes Licensee made to create that Covered |
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50 | * Code and the date of any change. Licensee must include in that file the |
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51 | * documentation of any changes made by any predecessor Licensee. Licensee |
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52 | * must include a prominent statement that the modification is derived, |
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53 | * directly or indirectly, from Original Intel Code. |
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54 | * |
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55 | * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
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56 | * Redistribution of source code of any substantial portion of the Covered |
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57 | * Code or modification without rights to further distribute source must |
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58 | * include the following Disclaimer and Export Compliance provision in the |
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59 | * documentation and/or other materials provided with distribution. In |
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60 | * addition, Licensee may not authorize further sublicense of source of any |
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61 | * portion of the Covered Code, and must include terms to the effect that the |
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62 | * license from Licensee to its licensee is limited to the intellectual |
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63 | * property embodied in the software Licensee provides to its licensee, and |
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64 | * not to intellectual property embodied in modifications its licensee may |
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65 | * make. |
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66 | * |
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67 | * 3.3. Redistribution of Executable. Redistribution in executable form of any |
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68 | * substantial portion of the Covered Code or modification must reproduce the |
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69 | * above Copyright Notice, and the following Disclaimer and Export Compliance |
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70 | * provision in the documentation and/or other materials provided with the |
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71 | * distribution. |
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72 | * |
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73 | * 3.4. Intel retains all right, title, and interest in and to the Original |
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74 | * Intel Code. |
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75 | * |
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76 | * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
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77 | * Intel shall be used in advertising or otherwise to promote the sale, use or |
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78 | * other dealings in products derived from or relating to the Covered Code |
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79 | * without prior written authorization from Intel. |
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80 | * |
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81 | * 4. Disclaimer and Export Compliance |
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82 | * |
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83 | * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
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84 | * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
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85 | * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
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86 | * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
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87 | * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
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88 | * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
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89 | * PARTICULAR PURPOSE. |
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90 | * |
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91 | * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
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92 | * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
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93 | * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
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94 | * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
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95 | * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
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96 | * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
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97 | * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
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98 | * LIMITED REMEDY. |
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99 | * |
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100 | * 4.3. Licensee shall not export, either directly or indirectly, any of this |
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101 | * software or system incorporating such software without first obtaining any |
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102 | * required license or other approval from the U. S. Department of Commerce or |
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103 | * any other agency or department of the United States Government. In the |
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104 | * event Licensee exports any such software from the United States or |
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105 | * re-exports any such software from a foreign destination, Licensee shall |
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106 | * ensure that the distribution and export/re-export of the software is in |
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107 | * compliance with all laws, regulations, orders, or other restrictions of the |
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108 | * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
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109 | * any of its subsidiaries will export/re-export any technical data, process, |
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110 | * software, or service, directly or indirectly, to any country for which the |
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111 | * United States government or any agency thereof requires an export license, |
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112 | * other governmental approval, or letter of assurance, without first obtaining |
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113 | * such license, approval or letter. |
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114 | * |
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115 | *****************************************************************************/ |
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116 | |||
117 | #define __DSWEXEC_C__ |
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118 | |||
119 | #include "acpi.h" |
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120 | #include "accommon.h" |
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121 | #include "acparser.h" |
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122 | #include "amlcode.h" |
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123 | #include "acdispat.h" |
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124 | #include "acinterp.h" |
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125 | #include "acnamesp.h" |
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126 | #include "acdebug.h" |
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127 | |||
128 | |||
129 | #define _COMPONENT ACPI_DISPATCHER |
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130 | ACPI_MODULE_NAME ("dswexec") |
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131 | |||
132 | /* |
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133 | * Dispatch table for opcode classes |
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134 | */ |
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135 | static ACPI_EXECUTE_OP AcpiGbl_OpTypeDispatch [] = |
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136 | { |
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137 | AcpiExOpcode_0A_0T_1R, |
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138 | AcpiExOpcode_1A_0T_0R, |
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139 | AcpiExOpcode_1A_0T_1R, |
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140 | AcpiExOpcode_1A_1T_0R, |
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141 | AcpiExOpcode_1A_1T_1R, |
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142 | AcpiExOpcode_2A_0T_0R, |
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143 | AcpiExOpcode_2A_0T_1R, |
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144 | AcpiExOpcode_2A_1T_1R, |
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145 | AcpiExOpcode_2A_2T_1R, |
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146 | AcpiExOpcode_3A_0T_0R, |
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147 | AcpiExOpcode_3A_1T_1R, |
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148 | AcpiExOpcode_6A_0T_1R |
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149 | }; |
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150 | |||
151 | |||
152 | /***************************************************************************** |
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153 | * |
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154 | * FUNCTION: AcpiDsGetPredicateValue |
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155 | * |
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156 | * PARAMETERS: WalkState - Current state of the parse tree walk |
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157 | * ResultObj - if non-zero, pop result from result stack |
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158 | * |
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159 | * RETURN: Status |
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160 | * |
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161 | * DESCRIPTION: Get the result of a predicate evaluation |
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162 | * |
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163 | ****************************************************************************/ |
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164 | |||
165 | ACPI_STATUS |
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166 | AcpiDsGetPredicateValue ( |
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167 | ACPI_WALK_STATE *WalkState, |
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168 | ACPI_OPERAND_OBJECT *ResultObj) |
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169 | { |
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170 | ACPI_STATUS Status = AE_OK; |
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171 | ACPI_OPERAND_OBJECT *ObjDesc; |
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172 | ACPI_OPERAND_OBJECT *LocalObjDesc = NULL; |
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173 | |||
174 | |||
175 | ACPI_FUNCTION_TRACE_PTR (DsGetPredicateValue, WalkState); |
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176 | |||
177 | |||
178 | WalkState->ControlState->Common.State = 0; |
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179 | |||
180 | if (ResultObj) |
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181 | { |
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182 | Status = AcpiDsResultPop (&ObjDesc, WalkState); |
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183 | if (ACPI_FAILURE (Status)) |
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184 | { |
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185 | ACPI_EXCEPTION ((AE_INFO, Status, |
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186 | "Could not get result from predicate evaluation")); |
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187 | |||
188 | return_ACPI_STATUS (Status); |
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189 | } |
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190 | } |
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191 | else |
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192 | { |
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193 | Status = AcpiDsCreateOperand (WalkState, WalkState->Op, 0); |
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194 | if (ACPI_FAILURE (Status)) |
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195 | { |
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196 | return_ACPI_STATUS (Status); |
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197 | } |
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198 | |||
199 | Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState); |
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200 | if (ACPI_FAILURE (Status)) |
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201 | { |
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202 | return_ACPI_STATUS (Status); |
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203 | } |
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204 | |||
205 | ObjDesc = WalkState->Operands [0]; |
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206 | } |
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207 | |||
208 | if (!ObjDesc) |
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209 | { |
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210 | ACPI_ERROR ((AE_INFO, |
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211 | "No predicate ObjDesc=%p State=%p", |
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212 | ObjDesc, WalkState)); |
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213 | |||
214 | return_ACPI_STATUS (AE_AML_NO_OPERAND); |
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215 | } |
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216 | |||
217 | /* |
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218 | * Result of predicate evaluation must be an Integer |
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219 | * object. Implicitly convert the argument if necessary. |
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220 | */ |
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221 | Status = AcpiExConvertToInteger (ObjDesc, &LocalObjDesc, 16); |
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222 | if (ACPI_FAILURE (Status)) |
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223 | { |
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224 | goto Cleanup; |
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225 | } |
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226 | |||
227 | if (LocalObjDesc->Common.Type != ACPI_TYPE_INTEGER) |
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228 | { |
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229 | ACPI_ERROR ((AE_INFO, |
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230 | "Bad predicate (not an integer) ObjDesc=%p State=%p Type=0x%X", |
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231 | ObjDesc, WalkState, ObjDesc->Common.Type)); |
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232 | |||
233 | Status = AE_AML_OPERAND_TYPE; |
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234 | goto Cleanup; |
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235 | } |
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236 | |||
237 | /* Truncate the predicate to 32-bits if necessary */ |
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238 | |||
239 | AcpiExTruncateFor32bitTable (LocalObjDesc); |
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240 | |||
241 | /* |
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242 | * Save the result of the predicate evaluation on |
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243 | * the control stack |
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244 | */ |
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245 | if (LocalObjDesc->Integer.Value) |
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246 | { |
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247 | WalkState->ControlState->Common.Value = TRUE; |
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248 | } |
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249 | else |
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250 | { |
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251 | /* |
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252 | * Predicate is FALSE, we will just toss the |
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253 | * rest of the package |
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254 | */ |
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255 | WalkState->ControlState->Common.Value = FALSE; |
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256 | Status = AE_CTRL_FALSE; |
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257 | } |
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258 | |||
259 | /* Predicate can be used for an implicit return value */ |
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260 | |||
261 | (void) AcpiDsDoImplicitReturn (LocalObjDesc, WalkState, TRUE); |
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262 | |||
263 | |||
264 | Cleanup: |
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265 | |||
266 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n", |
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267 | WalkState->ControlState->Common.Value, WalkState->Op)); |
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268 | |||
269 | /* Break to debugger to display result */ |
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270 | |||
271 | ACPI_DEBUGGER_EXEC (AcpiDbDisplayResultObject (LocalObjDesc, WalkState)); |
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272 | |||
273 | /* |
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274 | * Delete the predicate result object (we know that |
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275 | * we don't need it anymore) |
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276 | */ |
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277 | if (LocalObjDesc != ObjDesc) |
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278 | { |
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279 | AcpiUtRemoveReference (LocalObjDesc); |
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280 | } |
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281 | AcpiUtRemoveReference (ObjDesc); |
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282 | |||
283 | WalkState->ControlState->Common.State = ACPI_CONTROL_NORMAL; |
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284 | return_ACPI_STATUS (Status); |
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285 | } |
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286 | |||
287 | |||
288 | /***************************************************************************** |
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289 | * |
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290 | * FUNCTION: AcpiDsExecBeginOp |
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291 | * |
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292 | * PARAMETERS: WalkState - Current state of the parse tree walk |
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293 | * OutOp - Where to return op if a new one is created |
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294 | * |
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295 | * RETURN: Status |
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296 | * |
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297 | * DESCRIPTION: Descending callback used during the execution of control |
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298 | * methods. This is where most operators and operands are |
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299 | * dispatched to the interpreter. |
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300 | * |
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301 | ****************************************************************************/ |
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302 | |||
303 | ACPI_STATUS |
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304 | AcpiDsExecBeginOp ( |
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305 | ACPI_WALK_STATE *WalkState, |
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306 | ACPI_PARSE_OBJECT **OutOp) |
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307 | { |
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308 | ACPI_PARSE_OBJECT *Op; |
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309 | ACPI_STATUS Status = AE_OK; |
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310 | UINT32 OpcodeClass; |
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311 | |||
312 | |||
313 | ACPI_FUNCTION_TRACE_PTR (DsExecBeginOp, WalkState); |
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314 | |||
315 | |||
316 | Op = WalkState->Op; |
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317 | if (!Op) |
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318 | { |
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319 | Status = AcpiDsLoad2BeginOp (WalkState, OutOp); |
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320 | if (ACPI_FAILURE (Status)) |
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321 | { |
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322 | goto ErrorExit; |
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323 | } |
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324 | |||
325 | Op = *OutOp; |
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326 | WalkState->Op = Op; |
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327 | WalkState->Opcode = Op->Common.AmlOpcode; |
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328 | WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); |
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329 | |||
330 | if (AcpiNsOpensScope (WalkState->OpInfo->ObjectType)) |
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331 | { |
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332 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
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333 | "(%s) Popping scope for Op %p\n", |
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334 | AcpiUtGetTypeName (WalkState->OpInfo->ObjectType), Op)); |
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335 | |||
336 | Status = AcpiDsScopeStackPop (WalkState); |
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337 | if (ACPI_FAILURE (Status)) |
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338 | { |
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339 | goto ErrorExit; |
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340 | } |
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341 | } |
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342 | } |
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343 | |||
344 | if (Op == WalkState->Origin) |
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345 | { |
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346 | if (OutOp) |
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347 | { |
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348 | *OutOp = Op; |
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349 | } |
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350 | |||
351 | return_ACPI_STATUS (AE_OK); |
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352 | } |
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353 | |||
354 | /* |
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355 | * If the previous opcode was a conditional, this opcode |
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356 | * must be the beginning of the associated predicate. |
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357 | * Save this knowledge in the current scope descriptor |
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358 | */ |
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359 | if ((WalkState->ControlState) && |
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360 | (WalkState->ControlState->Common.State == |
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361 | ACPI_CONTROL_CONDITIONAL_EXECUTING)) |
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362 | { |
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363 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Exec predicate Op=%p State=%p\n", |
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364 | Op, WalkState)); |
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365 | |||
366 | WalkState->ControlState->Common.State = ACPI_CONTROL_PREDICATE_EXECUTING; |
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367 | |||
368 | /* Save start of predicate */ |
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369 | |||
370 | WalkState->ControlState->Control.PredicateOp = Op; |
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371 | } |
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372 | |||
373 | |||
374 | OpcodeClass = WalkState->OpInfo->Class; |
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375 | |||
376 | /* We want to send namepaths to the load code */ |
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377 | |||
378 | if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) |
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379 | { |
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380 | OpcodeClass = AML_CLASS_NAMED_OBJECT; |
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381 | } |
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382 | |||
383 | /* |
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384 | * Handle the opcode based upon the opcode type |
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385 | */ |
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386 | switch (OpcodeClass) |
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387 | { |
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388 | case AML_CLASS_CONTROL: |
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389 | |||
390 | Status = AcpiDsExecBeginControlOp (WalkState, Op); |
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391 | break; |
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392 | |||
393 | |||
394 | case AML_CLASS_NAMED_OBJECT: |
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395 | |||
396 | if (WalkState->WalkType & ACPI_WALK_METHOD) |
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397 | { |
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398 | /* |
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399 | * Found a named object declaration during method execution; |
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400 | * we must enter this object into the namespace. The created |
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401 | * object is temporary and will be deleted upon completion of |
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402 | * the execution of this method. |
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2216 | Serge | 403 | * |
404 | * Note 10/2010: Except for the Scope() op. This opcode does |
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405 | * not actually create a new object, it refers to an existing |
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406 | * object. However, for Scope(), we want to indeed open a |
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407 | * new scope. |
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1498 | serge | 408 | */ |
2216 | Serge | 409 | if (Op->Common.AmlOpcode != AML_SCOPE_OP) |
410 | { |
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411 | Status = AcpiDsLoad2BeginOp (WalkState, NULL); |
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412 | } |
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413 | else |
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414 | { |
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415 | Status = AcpiDsScopeStackPush (Op->Named.Node, |
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416 | Op->Named.Node->Type, WalkState); |
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417 | if (ACPI_FAILURE (Status)) |
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418 | { |
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419 | return_ACPI_STATUS (Status); |
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420 | } |
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421 | } |
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1498 | serge | 422 | } |
423 | break; |
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424 | |||
425 | |||
426 | case AML_CLASS_EXECUTE: |
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427 | case AML_CLASS_CREATE: |
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428 | |||
429 | break; |
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430 | |||
431 | |||
432 | default: |
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433 | break; |
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434 | } |
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435 | |||
436 | /* Nothing to do here during method execution */ |
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437 | |||
438 | return_ACPI_STATUS (Status); |
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439 | |||
440 | |||
441 | ErrorExit: |
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442 | Status = AcpiDsMethodError (Status, WalkState); |
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443 | return_ACPI_STATUS (Status); |
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444 | } |
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445 | |||
446 | |||
447 | /***************************************************************************** |
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448 | * |
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449 | * FUNCTION: AcpiDsExecEndOp |
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450 | * |
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451 | * PARAMETERS: WalkState - Current state of the parse tree walk |
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452 | * |
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453 | * RETURN: Status |
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454 | * |
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455 | * DESCRIPTION: Ascending callback used during the execution of control |
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456 | * methods. The only thing we really need to do here is to |
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457 | * notice the beginning of IF, ELSE, and WHILE blocks. |
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458 | * |
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459 | ****************************************************************************/ |
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460 | |||
461 | ACPI_STATUS |
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462 | AcpiDsExecEndOp ( |
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463 | ACPI_WALK_STATE *WalkState) |
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464 | { |
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465 | ACPI_PARSE_OBJECT *Op; |
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466 | ACPI_STATUS Status = AE_OK; |
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467 | UINT32 OpType; |
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468 | UINT32 OpClass; |
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469 | ACPI_PARSE_OBJECT *NextOp; |
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470 | ACPI_PARSE_OBJECT *FirstArg; |
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471 | |||
472 | |||
473 | ACPI_FUNCTION_TRACE_PTR (DsExecEndOp, WalkState); |
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474 | |||
475 | |||
476 | Op = WalkState->Op; |
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477 | OpType = WalkState->OpInfo->Type; |
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478 | OpClass = WalkState->OpInfo->Class; |
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479 | |||
480 | if (OpClass == AML_CLASS_UNKNOWN) |
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481 | { |
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482 | ACPI_ERROR ((AE_INFO, "Unknown opcode 0x%X", Op->Common.AmlOpcode)); |
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483 | return_ACPI_STATUS (AE_NOT_IMPLEMENTED); |
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484 | } |
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485 | |||
486 | FirstArg = Op->Common.Value.Arg; |
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487 | |||
488 | /* Init the walk state */ |
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489 | |||
490 | WalkState->NumOperands = 0; |
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491 | WalkState->OperandIndex = 0; |
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492 | WalkState->ReturnDesc = NULL; |
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493 | WalkState->ResultObj = NULL; |
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494 | |||
495 | /* Call debugger for single step support (DEBUG build only) */ |
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496 | |||
497 | ACPI_DEBUGGER_EXEC (Status = AcpiDbSingleStep (WalkState, Op, OpClass)); |
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498 | ACPI_DEBUGGER_EXEC (if (ACPI_FAILURE (Status)) {return_ACPI_STATUS (Status);}); |
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499 | |||
500 | /* Decode the Opcode Class */ |
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501 | |||
502 | switch (OpClass) |
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503 | { |
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504 | case AML_CLASS_ARGUMENT: /* Constants, literals, etc. */ |
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505 | |||
506 | if (WalkState->Opcode == AML_INT_NAMEPATH_OP) |
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507 | { |
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508 | Status = AcpiDsEvaluateNamePath (WalkState); |
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509 | if (ACPI_FAILURE (Status)) |
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510 | { |
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511 | goto Cleanup; |
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512 | } |
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513 | } |
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514 | break; |
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515 | |||
516 | |||
517 | case AML_CLASS_EXECUTE: /* Most operators with arguments */ |
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518 | |||
519 | /* Build resolved operand stack */ |
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520 | |||
521 | Status = AcpiDsCreateOperands (WalkState, FirstArg); |
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522 | if (ACPI_FAILURE (Status)) |
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523 | { |
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524 | goto Cleanup; |
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525 | } |
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526 | |||
527 | /* |
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528 | * All opcodes require operand resolution, with the only exceptions |
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529 | * being the ObjectType and SizeOf operators. |
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530 | */ |
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531 | if (!(WalkState->OpInfo->Flags & AML_NO_OPERAND_RESOLVE)) |
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532 | { |
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533 | /* Resolve all operands */ |
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534 | |||
535 | Status = AcpiExResolveOperands (WalkState->Opcode, |
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536 | &(WalkState->Operands [WalkState->NumOperands -1]), |
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537 | WalkState); |
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538 | } |
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539 | |||
540 | if (ACPI_SUCCESS (Status)) |
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541 | { |
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542 | /* |
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543 | * Dispatch the request to the appropriate interpreter handler |
||
544 | * routine. There is one routine per opcode "type" based upon the |
||
545 | * number of opcode arguments and return type. |
||
546 | */ |
||
547 | Status = AcpiGbl_OpTypeDispatch[OpType] (WalkState); |
||
548 | } |
||
549 | else |
||
550 | { |
||
551 | /* |
||
552 | * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the |
||
553 | * Local is uninitialized. |
||
554 | */ |
||
555 | if ((Status == AE_AML_UNINITIALIZED_LOCAL) && |
||
556 | (WalkState->Opcode == AML_STORE_OP) && |
||
557 | (WalkState->Operands[0]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && |
||
558 | (WalkState->Operands[1]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && |
||
559 | (WalkState->Operands[0]->Reference.Class == |
||
560 | WalkState->Operands[1]->Reference.Class) && |
||
561 | (WalkState->Operands[0]->Reference.Value == |
||
562 | WalkState->Operands[1]->Reference.Value)) |
||
563 | { |
||
564 | Status = AE_OK; |
||
565 | } |
||
566 | else |
||
567 | { |
||
568 | ACPI_EXCEPTION ((AE_INFO, Status, |
||
569 | "While resolving operands for [%s]", |
||
570 | AcpiPsGetOpcodeName (WalkState->Opcode))); |
||
571 | } |
||
572 | } |
||
573 | |||
574 | /* Always delete the argument objects and clear the operand stack */ |
||
575 | |||
576 | AcpiDsClearOperands (WalkState); |
||
577 | |||
578 | /* |
||
579 | * If a result object was returned from above, push it on the |
||
580 | * current result stack |
||
581 | */ |
||
582 | if (ACPI_SUCCESS (Status) && |
||
583 | WalkState->ResultObj) |
||
584 | { |
||
585 | Status = AcpiDsResultPush (WalkState->ResultObj, WalkState); |
||
586 | } |
||
587 | break; |
||
588 | |||
589 | |||
590 | default: |
||
591 | |||
592 | switch (OpType) |
||
593 | { |
||
594 | case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */ |
||
595 | |||
596 | /* 1 Operand, 0 ExternalResult, 0 InternalResult */ |
||
597 | |||
598 | Status = AcpiDsExecEndControlOp (WalkState, Op); |
||
599 | |||
600 | break; |
||
601 | |||
602 | |||
603 | case AML_TYPE_METHOD_CALL: |
||
604 | |||
605 | /* |
||
606 | * If the method is referenced from within a package |
||
607 | * declaration, it is not a invocation of the method, just |
||
608 | * a reference to it. |
||
609 | */ |
||
610 | if ((Op->Asl.Parent) && |
||
611 | ((Op->Asl.Parent->Asl.AmlOpcode == AML_PACKAGE_OP) || |
||
612 | (Op->Asl.Parent->Asl.AmlOpcode == AML_VAR_PACKAGE_OP))) |
||
613 | { |
||
614 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
||
615 | "Method Reference in a Package, Op=%p\n", Op)); |
||
616 | |||
617 | Op->Common.Node = (ACPI_NAMESPACE_NODE *) Op->Asl.Value.Arg->Asl.Node; |
||
618 | AcpiUtAddReference (Op->Asl.Value.Arg->Asl.Node->Object); |
||
619 | return_ACPI_STATUS (AE_OK); |
||
620 | } |
||
621 | |||
622 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Method invocation, Op=%p\n", Op)); |
||
623 | |||
624 | /* |
||
625 | * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains |
||
626 | * the method Node pointer |
||
627 | */ |
||
628 | /* NextOp points to the op that holds the method name */ |
||
629 | |||
630 | NextOp = FirstArg; |
||
631 | |||
632 | /* NextOp points to first argument op */ |
||
633 | |||
634 | NextOp = NextOp->Common.Next; |
||
635 | |||
636 | /* |
||
637 | * Get the method's arguments and put them on the operand stack |
||
638 | */ |
||
639 | Status = AcpiDsCreateOperands (WalkState, NextOp); |
||
640 | if (ACPI_FAILURE (Status)) |
||
641 | { |
||
642 | break; |
||
643 | } |
||
644 | |||
645 | /* |
||
646 | * Since the operands will be passed to another control method, |
||
647 | * we must resolve all local references here (Local variables, |
||
648 | * arguments to *this* method, etc.) |
||
649 | */ |
||
650 | Status = AcpiDsResolveOperands (WalkState); |
||
651 | if (ACPI_FAILURE (Status)) |
||
652 | { |
||
653 | /* On error, clear all resolved operands */ |
||
654 | |||
655 | AcpiDsClearOperands (WalkState); |
||
656 | break; |
||
657 | } |
||
658 | |||
659 | /* |
||
660 | * Tell the walk loop to preempt this running method and |
||
661 | * execute the new method |
||
662 | */ |
||
663 | Status = AE_CTRL_TRANSFER; |
||
664 | |||
665 | /* |
||
666 | * Return now; we don't want to disturb anything, |
||
667 | * especially the operand count! |
||
668 | */ |
||
669 | return_ACPI_STATUS (Status); |
||
670 | |||
671 | |||
672 | case AML_TYPE_CREATE_FIELD: |
||
673 | |||
674 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
||
675 | "Executing CreateField Buffer/Index Op=%p\n", Op)); |
||
676 | |||
677 | Status = AcpiDsLoad2EndOp (WalkState); |
||
678 | if (ACPI_FAILURE (Status)) |
||
679 | { |
||
680 | break; |
||
681 | } |
||
682 | |||
683 | Status = AcpiDsEvalBufferFieldOperands (WalkState, Op); |
||
684 | break; |
||
685 | |||
686 | |||
687 | case AML_TYPE_CREATE_OBJECT: |
||
688 | |||
689 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
||
690 | "Executing CreateObject (Buffer/Package) Op=%p\n", Op)); |
||
691 | |||
692 | switch (Op->Common.Parent->Common.AmlOpcode) |
||
693 | { |
||
694 | case AML_NAME_OP: |
||
695 | |||
696 | /* |
||
697 | * Put the Node on the object stack (Contains the ACPI Name |
||
698 | * of this object) |
||
699 | */ |
||
700 | WalkState->Operands[0] = (void *) Op->Common.Parent->Common.Node; |
||
701 | WalkState->NumOperands = 1; |
||
702 | |||
703 | Status = AcpiDsCreateNode (WalkState, |
||
704 | Op->Common.Parent->Common.Node, |
||
705 | Op->Common.Parent); |
||
706 | if (ACPI_FAILURE (Status)) |
||
707 | { |
||
708 | break; |
||
709 | } |
||
710 | |||
711 | /* Fall through */ |
||
712 | /*lint -fallthrough */ |
||
713 | |||
714 | case AML_INT_EVAL_SUBTREE_OP: |
||
715 | |||
716 | Status = AcpiDsEvalDataObjectOperands (WalkState, Op, |
||
717 | AcpiNsGetAttachedObject (Op->Common.Parent->Common.Node)); |
||
718 | break; |
||
719 | |||
720 | default: |
||
721 | |||
722 | Status = AcpiDsEvalDataObjectOperands (WalkState, Op, NULL); |
||
723 | break; |
||
724 | } |
||
725 | |||
726 | /* |
||
727 | * If a result object was returned from above, push it on the |
||
728 | * current result stack |
||
729 | */ |
||
730 | if (WalkState->ResultObj) |
||
731 | { |
||
732 | Status = AcpiDsResultPush (WalkState->ResultObj, WalkState); |
||
733 | } |
||
734 | break; |
||
735 | |||
736 | |||
737 | case AML_TYPE_NAMED_FIELD: |
||
738 | case AML_TYPE_NAMED_COMPLEX: |
||
739 | case AML_TYPE_NAMED_SIMPLE: |
||
740 | case AML_TYPE_NAMED_NO_OBJ: |
||
741 | |||
742 | Status = AcpiDsLoad2EndOp (WalkState); |
||
743 | if (ACPI_FAILURE (Status)) |
||
744 | { |
||
745 | break; |
||
746 | } |
||
747 | |||
748 | if (Op->Common.AmlOpcode == AML_REGION_OP) |
||
749 | { |
||
750 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
||
751 | "Executing OpRegion Address/Length Op=%p\n", Op)); |
||
752 | |||
753 | Status = AcpiDsEvalRegionOperands (WalkState, Op); |
||
754 | if (ACPI_FAILURE (Status)) |
||
755 | { |
||
756 | break; |
||
757 | } |
||
758 | } |
||
759 | else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP) |
||
760 | { |
||
761 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
||
762 | "Executing DataTableRegion Strings Op=%p\n", Op)); |
||
763 | |||
764 | Status = AcpiDsEvalTableRegionOperands (WalkState, Op); |
||
765 | if (ACPI_FAILURE (Status)) |
||
766 | { |
||
767 | break; |
||
768 | } |
||
769 | } |
||
770 | else if (Op->Common.AmlOpcode == AML_BANK_FIELD_OP) |
||
771 | { |
||
772 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
||
773 | "Executing BankField Op=%p\n", Op)); |
||
774 | |||
775 | Status = AcpiDsEvalBankFieldOperands (WalkState, Op); |
||
776 | if (ACPI_FAILURE (Status)) |
||
777 | { |
||
778 | break; |
||
779 | } |
||
780 | } |
||
781 | break; |
||
782 | |||
783 | |||
784 | case AML_TYPE_UNDEFINED: |
||
785 | |||
786 | ACPI_ERROR ((AE_INFO, |
||
787 | "Undefined opcode type Op=%p", Op)); |
||
788 | return_ACPI_STATUS (AE_NOT_IMPLEMENTED); |
||
789 | |||
790 | |||
791 | case AML_TYPE_BOGUS: |
||
792 | |||
793 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
||
794 | "Internal opcode=%X type Op=%p\n", |
||
795 | WalkState->Opcode, Op)); |
||
796 | break; |
||
797 | |||
798 | |||
799 | default: |
||
800 | |||
801 | ACPI_ERROR ((AE_INFO, |
||
802 | "Unimplemented opcode, class=0x%X type=0x%X Opcode=-0x%X Op=%p", |
||
803 | OpClass, OpType, Op->Common.AmlOpcode, Op)); |
||
804 | |||
805 | Status = AE_NOT_IMPLEMENTED; |
||
806 | break; |
||
807 | } |
||
808 | } |
||
809 | |||
810 | /* |
||
811 | * ACPI 2.0 support for 64-bit integers: Truncate numeric |
||
812 | * result value if we are executing from a 32-bit ACPI table |
||
813 | */ |
||
814 | AcpiExTruncateFor32bitTable (WalkState->ResultObj); |
||
815 | |||
816 | /* |
||
817 | * Check if we just completed the evaluation of a |
||
818 | * conditional predicate |
||
819 | */ |
||
820 | if ((ACPI_SUCCESS (Status)) && |
||
821 | (WalkState->ControlState) && |
||
822 | (WalkState->ControlState->Common.State == |
||
823 | ACPI_CONTROL_PREDICATE_EXECUTING) && |
||
824 | (WalkState->ControlState->Control.PredicateOp == Op)) |
||
825 | { |
||
826 | Status = AcpiDsGetPredicateValue (WalkState, WalkState->ResultObj); |
||
827 | WalkState->ResultObj = NULL; |
||
828 | } |
||
829 | |||
830 | |||
831 | Cleanup: |
||
832 | |||
833 | if (WalkState->ResultObj) |
||
834 | { |
||
835 | /* Break to debugger to display result */ |
||
836 | |||
837 | ACPI_DEBUGGER_EXEC (AcpiDbDisplayResultObject (WalkState->ResultObj, |
||
838 | WalkState)); |
||
839 | |||
840 | /* |
||
841 | * Delete the result op if and only if: |
||
842 | * Parent will not use the result -- such as any |
||
843 | * non-nested type2 op in a method (parent will be method) |
||
844 | */ |
||
845 | AcpiDsDeleteResultIfNotUsed (Op, WalkState->ResultObj, WalkState); |
||
846 | } |
||
847 | |||
848 | #ifdef _UNDER_DEVELOPMENT |
||
849 | |||
850 | if (WalkState->ParserState.Aml == WalkState->ParserState.AmlEnd) |
||
851 | { |
||
852 | AcpiDbMethodEnd (WalkState); |
||
853 | } |
||
854 | #endif |
||
855 | |||
856 | /* Invoke exception handler on error */ |
||
857 | |||
858 | if (ACPI_FAILURE (Status)) |
||
859 | { |
||
860 | Status = AcpiDsMethodError (Status, WalkState); |
||
861 | } |
||
862 | |||
863 | /* Always clear the object stack */ |
||
864 | |||
865 | WalkState->NumOperands = 0; |
||
866 | return_ACPI_STATUS (Status); |
||
867 | } |
||
868 |