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1498 | serge | 1 | |
2 | * |
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3 | * Module Name: exstorob - AML Interpreter object store support, store to object |
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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 "acinterp.h" |
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121 | |||
122 | |||
123 | |||
124 | ACPI_MODULE_NAME ("exstorob") |
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125 | |||
126 | |||
127 | |||
128 | * |
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129 | * FUNCTION: AcpiExStoreBufferToBuffer |
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130 | * |
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131 | * PARAMETERS: SourceDesc - Source object to copy |
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132 | * TargetDesc - Destination object of the copy |
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133 | * |
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134 | * RETURN: Status |
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135 | * |
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136 | * DESCRIPTION: Copy a buffer object to another buffer object. |
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137 | * |
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138 | ******************************************************************************/ |
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139 | |||
140 | |||
141 | AcpiExStoreBufferToBuffer ( |
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142 | ACPI_OPERAND_OBJECT *SourceDesc, |
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143 | ACPI_OPERAND_OBJECT *TargetDesc) |
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144 | { |
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145 | UINT32 Length; |
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146 | UINT8 *Buffer; |
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147 | |||
148 | |||
149 | |||
150 | |||
151 | |||
152 | |||
153 | |||
154 | |||
155 | { |
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156 | return_ACPI_STATUS (AE_OK); |
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157 | } |
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158 | |||
159 | |||
160 | |||
161 | |||
162 | Length = SourceDesc->Buffer.Length; |
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163 | |||
164 | |||
165 | * If target is a buffer of length zero or is a static buffer, |
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166 | * allocate a new buffer of the proper length |
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167 | */ |
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168 | if ((TargetDesc->Buffer.Length == 0) || |
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169 | (TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER)) |
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170 | { |
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171 | TargetDesc->Buffer.Pointer = ACPI_ALLOCATE (Length); |
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172 | if (!TargetDesc->Buffer.Pointer) |
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173 | { |
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174 | return_ACPI_STATUS (AE_NO_MEMORY); |
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175 | } |
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176 | |||
177 | |||
178 | } |
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179 | |||
180 | |||
181 | |||
182 | |||
183 | { |
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184 | /* Clear existing buffer and copy in the new one */ |
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185 | |||
186 | |||
187 | ACPI_MEMCPY (TargetDesc->Buffer.Pointer, Buffer, Length); |
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188 | |||
189 | |||
190 | /* |
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191 | * NOTE: ACPI versions up to 3.0 specified that the buffer must be |
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192 | * truncated if the string is smaller than the buffer. However, "other" |
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193 | * implementations of ACPI never did this and thus became the defacto |
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194 | * standard. ACPI 3.0A changes this behavior such that the buffer |
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195 | * is no longer truncated. |
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196 | */ |
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197 | |||
198 | |||
199 | * OBSOLETE BEHAVIOR: |
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200 | * If the original source was a string, we must truncate the buffer, |
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201 | * according to the ACPI spec. Integer-to-Buffer and Buffer-to-Buffer |
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202 | * copy must not truncate the original buffer. |
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203 | */ |
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204 | if (OriginalSrcType == ACPI_TYPE_STRING) |
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205 | { |
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206 | /* Set the new length of the target */ |
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207 | |||
208 | |||
209 | } |
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210 | #endif |
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211 | } |
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212 | else |
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213 | { |
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214 | /* Truncate the source, copy only what will fit */ |
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215 | |||
216 | |||
217 | TargetDesc->Buffer.Length); |
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218 | |||
219 | |||
220 | "Truncating source buffer from %X to %X\n", |
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221 | Length, TargetDesc->Buffer.Length)); |
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222 | } |
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223 | |||
224 | |||
225 | |||
226 | |||
227 | TargetDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER; |
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228 | return_ACPI_STATUS (AE_OK); |
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229 | } |
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230 | |||
231 | |||
232 | |||
233 | * |
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234 | * FUNCTION: AcpiExStoreStringToString |
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235 | * |
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236 | * PARAMETERS: SourceDesc - Source object to copy |
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237 | * TargetDesc - Destination object of the copy |
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238 | * |
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239 | * RETURN: Status |
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240 | * |
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241 | * DESCRIPTION: Copy a String object to another String object |
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242 | * |
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243 | ******************************************************************************/ |
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244 | |||
245 | |||
246 | AcpiExStoreStringToString ( |
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247 | ACPI_OPERAND_OBJECT *SourceDesc, |
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248 | ACPI_OPERAND_OBJECT *TargetDesc) |
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249 | { |
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250 | UINT32 Length; |
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251 | UINT8 *Buffer; |
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252 | |||
253 | |||
254 | |||
255 | |||
256 | |||
257 | |||
258 | |||
259 | |||
260 | { |
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261 | return_ACPI_STATUS (AE_OK); |
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262 | } |
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263 | |||
264 | |||
265 | |||
266 | |||
267 | Length = SourceDesc->String.Length; |
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268 | |||
269 | |||
270 | * Replace existing string value if it will fit and the string |
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271 | * pointer is not a static pointer (part of an ACPI table) |
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272 | */ |
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273 | if ((Length < TargetDesc->String.Length) && |
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274 | (!(TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER))) |
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275 | { |
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276 | /* |
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277 | * String will fit in existing non-static buffer. |
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278 | * Clear old string and copy in the new one |
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279 | */ |
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280 | ACPI_MEMSET (TargetDesc->String.Pointer, 0, |
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281 | (ACPI_SIZE) TargetDesc->String.Length + 1); |
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282 | ACPI_MEMCPY (TargetDesc->String.Pointer, Buffer, Length); |
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283 | } |
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284 | else |
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285 | { |
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286 | /* |
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287 | * Free the current buffer, then allocate a new buffer |
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288 | * large enough to hold the value |
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289 | */ |
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290 | if (TargetDesc->String.Pointer && |
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291 | (!(TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER))) |
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292 | { |
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293 | /* Only free if not a pointer into the DSDT */ |
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294 | |||
295 | |||
296 | } |
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297 | |||
298 | |||
299 | (ACPI_SIZE) Length + 1); |
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300 | if (!TargetDesc->String.Pointer) |
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301 | { |
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302 | return_ACPI_STATUS (AE_NO_MEMORY); |
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303 | } |
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304 | |||
305 | |||
306 | ACPI_MEMCPY (TargetDesc->String.Pointer, Buffer, Length); |
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307 | } |
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308 | |||
309 | |||
310 | |||
311 | |||
312 | return_ACPI_STATUS (AE_OK); |
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313 | }>=> |
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314 |