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1498 | serge | 1 | /******************************************************************************* |
2 | * |
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3 | * Module Name: rslist - Linked list utilities |
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4 | * |
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5 | ******************************************************************************/ |
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6 | |||
7 | /****************************************************************************** |
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8 | * |
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9 | * 1. Copyright Notice |
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10 | * |
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2216 | Serge | 11 | * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp. |
1498 | serge | 12 | * All rights reserved. |
13 | * |
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14 | * 2. License |
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15 | * |
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16 | * 2.1. This is your license from Intel Corp. under its intellectual property |
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17 | * rights. You may have additional license terms from the party that provided |
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18 | * you this software, covering your right to use that party's intellectual |
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19 | * property rights. |
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20 | * |
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21 | * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
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22 | * copy of the source code appearing in this file ("Covered Code") an |
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23 | * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
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24 | * base code distributed originally by Intel ("Original Intel Code") to copy, |
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25 | * make derivatives, distribute, use and display any portion of the Covered |
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26 | * Code in any form, with the right to sublicense such rights; and |
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27 | * |
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28 | * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
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29 | * license (with the right to sublicense), under only those claims of Intel |
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30 | * patents that are infringed by the Original Intel Code, to make, use, sell, |
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31 | * offer to sell, and import the Covered Code and derivative works thereof |
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32 | * solely to the minimum extent necessary to exercise the above copyright |
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33 | * license, and in no event shall the patent license extend to any additions |
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34 | * to or modifications of the Original Intel Code. No other license or right |
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35 | * is granted directly or by implication, estoppel or otherwise; |
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36 | * |
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37 | * The above copyright and patent license is granted only if the following |
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38 | * conditions are met: |
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39 | * |
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40 | * 3. Conditions |
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41 | * |
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42 | * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
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43 | * Redistribution of source code of any substantial portion of the Covered |
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44 | * Code or modification with rights to further distribute source must include |
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45 | * the above Copyright Notice, the above License, this list of Conditions, |
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46 | * and the following Disclaimer and Export Compliance provision. In addition, |
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47 | * Licensee must cause all Covered Code to which Licensee contributes to |
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48 | * contain a file documenting the changes Licensee made to create that Covered |
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49 | * Code and the date of any change. Licensee must include in that file the |
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50 | * documentation of any changes made by any predecessor Licensee. Licensee |
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51 | * must include a prominent statement that the modification is derived, |
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52 | * directly or indirectly, from Original Intel Code. |
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53 | * |
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54 | * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
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55 | * Redistribution of source code of any substantial portion of the Covered |
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56 | * Code or modification without rights to further distribute source must |
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57 | * include the following Disclaimer and Export Compliance provision in the |
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58 | * documentation and/or other materials provided with distribution. In |
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59 | * addition, Licensee may not authorize further sublicense of source of any |
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60 | * portion of the Covered Code, and must include terms to the effect that the |
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61 | * license from Licensee to its licensee is limited to the intellectual |
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62 | * property embodied in the software Licensee provides to its licensee, and |
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63 | * not to intellectual property embodied in modifications its licensee may |
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64 | * make. |
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65 | * |
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66 | * 3.3. Redistribution of Executable. Redistribution in executable form of any |
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67 | * substantial portion of the Covered Code or modification must reproduce the |
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68 | * above Copyright Notice, and the following Disclaimer and Export Compliance |
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69 | * provision in the documentation and/or other materials provided with the |
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70 | * distribution. |
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71 | * |
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72 | * 3.4. Intel retains all right, title, and interest in and to the Original |
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73 | * Intel Code. |
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74 | * |
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75 | * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
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76 | * Intel shall be used in advertising or otherwise to promote the sale, use or |
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77 | * other dealings in products derived from or relating to the Covered Code |
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78 | * without prior written authorization from Intel. |
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79 | * |
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80 | * 4. Disclaimer and Export Compliance |
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81 | * |
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82 | * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
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83 | * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
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84 | * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
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85 | * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
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86 | * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
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87 | * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
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88 | * PARTICULAR PURPOSE. |
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89 | * |
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90 | * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
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91 | * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
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92 | * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
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93 | * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
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94 | * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
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95 | * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
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96 | * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
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97 | * LIMITED REMEDY. |
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98 | * |
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99 | * 4.3. Licensee shall not export, either directly or indirectly, any of this |
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100 | * software or system incorporating such software without first obtaining any |
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101 | * required license or other approval from the U. S. Department of Commerce or |
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102 | * any other agency or department of the United States Government. In the |
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103 | * event Licensee exports any such software from the United States or |
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104 | * re-exports any such software from a foreign destination, Licensee shall |
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105 | * ensure that the distribution and export/re-export of the software is in |
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106 | * compliance with all laws, regulations, orders, or other restrictions of the |
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107 | * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
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108 | * any of its subsidiaries will export/re-export any technical data, process, |
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109 | * software, or service, directly or indirectly, to any country for which the |
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110 | * United States government or any agency thereof requires an export license, |
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111 | * other governmental approval, or letter of assurance, without first obtaining |
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112 | * such license, approval or letter. |
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113 | * |
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114 | *****************************************************************************/ |
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115 | |||
116 | #define __RSLIST_C__ |
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117 | |||
118 | #include "acpi.h" |
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119 | #include "accommon.h" |
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120 | #include "acresrc.h" |
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121 | |||
122 | #define _COMPONENT ACPI_RESOURCES |
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123 | ACPI_MODULE_NAME ("rslist") |
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124 | |||
125 | |||
126 | /******************************************************************************* |
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127 | * |
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128 | * FUNCTION: AcpiRsConvertAmlToResources |
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129 | * |
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130 | * PARAMETERS: ACPI_WALK_AML_CALLBACK |
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131 | * ResourcePtr - Pointer to the buffer that will |
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132 | * contain the output structures |
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133 | * |
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134 | * RETURN: Status |
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135 | * |
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136 | * DESCRIPTION: Convert an AML resource to an internal representation of the |
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137 | * resource that is aligned and easier to access. |
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138 | * |
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139 | ******************************************************************************/ |
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140 | |||
141 | ACPI_STATUS |
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142 | AcpiRsConvertAmlToResources ( |
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143 | UINT8 *Aml, |
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144 | UINT32 Length, |
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145 | UINT32 Offset, |
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146 | UINT8 ResourceIndex, |
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147 | void *Context) |
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148 | { |
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149 | ACPI_RESOURCE **ResourcePtr = ACPI_CAST_INDIRECT_PTR ( |
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150 | ACPI_RESOURCE, Context); |
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151 | ACPI_RESOURCE *Resource; |
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152 | ACPI_STATUS Status; |
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153 | |||
154 | |||
155 | ACPI_FUNCTION_TRACE (RsConvertAmlToResources); |
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156 | |||
157 | |||
158 | /* |
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159 | * Check that the input buffer and all subsequent pointers into it |
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160 | * are aligned on a native word boundary. Most important on IA64 |
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161 | */ |
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162 | Resource = *ResourcePtr; |
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163 | if (ACPI_IS_MISALIGNED (Resource)) |
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164 | { |
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165 | ACPI_WARNING ((AE_INFO, |
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166 | "Misaligned resource pointer %p", Resource)); |
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167 | } |
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168 | |||
169 | /* Convert the AML byte stream resource to a local resource struct */ |
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170 | |||
171 | Status = AcpiRsConvertAmlToResource ( |
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172 | Resource, ACPI_CAST_PTR (AML_RESOURCE, Aml), |
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173 | AcpiGbl_GetResourceDispatch[ResourceIndex]); |
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174 | if (ACPI_FAILURE (Status)) |
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175 | { |
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176 | ACPI_EXCEPTION ((AE_INFO, Status, |
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177 | "Could not convert AML resource (Type 0x%X)", *Aml)); |
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178 | return_ACPI_STATUS (Status); |
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179 | } |
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180 | |||
181 | ACPI_DEBUG_PRINT ((ACPI_DB_RESOURCES, |
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182 | "Type %.2X, AmlLength %.2X InternalLength %.2X\n", |
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183 | AcpiUtGetResourceType (Aml), Length, |
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184 | Resource->Length)); |
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185 | |||
186 | /* Point to the next structure in the output buffer */ |
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187 | |||
188 | *ResourcePtr = ACPI_ADD_PTR (void, Resource, Resource->Length); |
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189 | return_ACPI_STATUS (AE_OK); |
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190 | } |
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191 | |||
192 | |||
193 | /******************************************************************************* |
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194 | * |
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195 | * FUNCTION: AcpiRsConvertResourcesToAml |
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196 | * |
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197 | * PARAMETERS: Resource - Pointer to the resource linked list |
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198 | * AmlSizeNeeded - Calculated size of the byte stream |
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199 | * needed from calling AcpiRsGetAmlLength() |
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200 | * The size of the OutputBuffer is |
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201 | * guaranteed to be >= AmlSizeNeeded |
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202 | * OutputBuffer - Pointer to the buffer that will |
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203 | * contain the byte stream |
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204 | * |
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205 | * RETURN: Status |
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206 | * |
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207 | * DESCRIPTION: Takes the resource linked list and parses it, creating a |
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208 | * byte stream of resources in the caller's output buffer |
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209 | * |
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210 | ******************************************************************************/ |
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211 | |||
212 | ACPI_STATUS |
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213 | AcpiRsConvertResourcesToAml ( |
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214 | ACPI_RESOURCE *Resource, |
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215 | ACPI_SIZE AmlSizeNeeded, |
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216 | UINT8 *OutputBuffer) |
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217 | { |
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218 | UINT8 *Aml = OutputBuffer; |
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219 | UINT8 *EndAml = OutputBuffer + AmlSizeNeeded; |
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220 | ACPI_STATUS Status; |
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221 | |||
222 | |||
223 | ACPI_FUNCTION_TRACE (RsConvertResourcesToAml); |
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224 | |||
225 | |||
226 | /* Walk the resource descriptor list, convert each descriptor */ |
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227 | |||
228 | while (Aml < EndAml) |
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229 | { |
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230 | /* Validate the (internal) Resource Type */ |
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231 | |||
232 | if (Resource->Type > ACPI_RESOURCE_TYPE_MAX) |
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233 | { |
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234 | ACPI_ERROR ((AE_INFO, |
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235 | "Invalid descriptor type (0x%X) in resource list", |
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236 | Resource->Type)); |
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237 | return_ACPI_STATUS (AE_BAD_DATA); |
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238 | } |
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239 | |||
240 | /* Perform the conversion */ |
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241 | |||
242 | Status = AcpiRsConvertResourceToAml (Resource, |
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243 | ACPI_CAST_PTR (AML_RESOURCE, Aml), |
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244 | AcpiGbl_SetResourceDispatch[Resource->Type]); |
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245 | if (ACPI_FAILURE (Status)) |
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246 | { |
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247 | ACPI_EXCEPTION ((AE_INFO, Status, |
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248 | "Could not convert resource (type 0x%X) to AML", |
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249 | Resource->Type)); |
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250 | return_ACPI_STATUS (Status); |
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251 | } |
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252 | |||
253 | /* Perform final sanity check on the new AML resource descriptor */ |
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254 | |||
255 | Status = AcpiUtValidateResource ( |
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256 | ACPI_CAST_PTR (AML_RESOURCE, Aml), NULL); |
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257 | if (ACPI_FAILURE (Status)) |
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258 | { |
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259 | return_ACPI_STATUS (Status); |
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260 | } |
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261 | |||
262 | /* Check for end-of-list, normal exit */ |
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263 | |||
264 | if (Resource->Type == ACPI_RESOURCE_TYPE_END_TAG) |
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265 | { |
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266 | /* An End Tag indicates the end of the input Resource Template */ |
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267 | |||
268 | return_ACPI_STATUS (AE_OK); |
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269 | } |
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270 | |||
271 | /* |
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272 | * Extract the total length of the new descriptor and set the |
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273 | * Aml to point to the next (output) resource descriptor |
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274 | */ |
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275 | Aml += AcpiUtGetDescriptorLength (Aml); |
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276 | |||
277 | /* Point to the next input resource descriptor */ |
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278 | |||
279 | Resource = ACPI_ADD_PTR (ACPI_RESOURCE, Resource, Resource->Length); |
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280 | } |
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281 | |||
282 | /* Completed buffer, but did not find an EndTag resource descriptor */ |
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283 | |||
284 | return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG); |
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285 | }> |
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286 |