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1498 | serge | 1 | /******************************************************************************* |
2 | * |
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3 | * Module Name: rsutils - Utilities for the resource manager |
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4 | * |
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5 | ******************************************************************************/ |
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6 | |||
7 | /****************************************************************************** |
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8 | * |
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9 | * 1. Copyright Notice |
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10 | * |
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2216 | Serge | 11 | * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp. |
1498 | serge | 12 | * All rights reserved. |
13 | * |
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14 | * 2. License |
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15 | * |
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16 | * 2.1. This is your license from Intel Corp. under its intellectual property |
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17 | * rights. You may have additional license terms from the party that provided |
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18 | * you this software, covering your right to use that party's intellectual |
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19 | * property rights. |
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20 | * |
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21 | * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
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22 | * copy of the source code appearing in this file ("Covered Code") an |
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23 | * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
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24 | * base code distributed originally by Intel ("Original Intel Code") to copy, |
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25 | * make derivatives, distribute, use and display any portion of the Covered |
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26 | * Code in any form, with the right to sublicense such rights; and |
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27 | * |
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28 | * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
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29 | * license (with the right to sublicense), under only those claims of Intel |
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30 | * patents that are infringed by the Original Intel Code, to make, use, sell, |
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31 | * offer to sell, and import the Covered Code and derivative works thereof |
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32 | * solely to the minimum extent necessary to exercise the above copyright |
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33 | * license, and in no event shall the patent license extend to any additions |
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34 | * to or modifications of the Original Intel Code. No other license or right |
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35 | * is granted directly or by implication, estoppel or otherwise; |
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36 | * |
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37 | * The above copyright and patent license is granted only if the following |
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38 | * conditions are met: |
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39 | * |
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40 | * 3. Conditions |
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41 | * |
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42 | * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
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43 | * Redistribution of source code of any substantial portion of the Covered |
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44 | * Code or modification with rights to further distribute source must include |
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45 | * the above Copyright Notice, the above License, this list of Conditions, |
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46 | * and the following Disclaimer and Export Compliance provision. In addition, |
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47 | * Licensee must cause all Covered Code to which Licensee contributes to |
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48 | * contain a file documenting the changes Licensee made to create that Covered |
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49 | * Code and the date of any change. Licensee must include in that file the |
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50 | * documentation of any changes made by any predecessor Licensee. Licensee |
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51 | * must include a prominent statement that the modification is derived, |
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52 | * directly or indirectly, from Original Intel Code. |
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53 | * |
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54 | * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
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55 | * Redistribution of source code of any substantial portion of the Covered |
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56 | * Code or modification without rights to further distribute source must |
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57 | * include the following Disclaimer and Export Compliance provision in the |
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58 | * documentation and/or other materials provided with distribution. In |
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59 | * addition, Licensee may not authorize further sublicense of source of any |
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60 | * portion of the Covered Code, and must include terms to the effect that the |
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61 | * license from Licensee to its licensee is limited to the intellectual |
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62 | * property embodied in the software Licensee provides to its licensee, and |
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63 | * not to intellectual property embodied in modifications its licensee may |
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64 | * make. |
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65 | * |
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66 | * 3.3. Redistribution of Executable. Redistribution in executable form of any |
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67 | * substantial portion of the Covered Code or modification must reproduce the |
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68 | * above Copyright Notice, and the following Disclaimer and Export Compliance |
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69 | * provision in the documentation and/or other materials provided with the |
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70 | * distribution. |
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71 | * |
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72 | * 3.4. Intel retains all right, title, and interest in and to the Original |
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73 | * Intel Code. |
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74 | * |
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75 | * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
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76 | * Intel shall be used in advertising or otherwise to promote the sale, use or |
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77 | * other dealings in products derived from or relating to the Covered Code |
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78 | * without prior written authorization from Intel. |
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79 | * |
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80 | * 4. Disclaimer and Export Compliance |
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81 | * |
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82 | * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
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83 | * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
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84 | * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
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85 | * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
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86 | * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
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87 | * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
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88 | * PARTICULAR PURPOSE. |
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89 | * |
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90 | * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
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91 | * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
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92 | * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
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93 | * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
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94 | * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
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95 | * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
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96 | * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
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97 | * LIMITED REMEDY. |
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98 | * |
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99 | * 4.3. Licensee shall not export, either directly or indirectly, any of this |
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100 | * software or system incorporating such software without first obtaining any |
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101 | * required license or other approval from the U. S. Department of Commerce or |
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102 | * any other agency or department of the United States Government. In the |
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103 | * event Licensee exports any such software from the United States or |
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104 | * re-exports any such software from a foreign destination, Licensee shall |
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105 | * ensure that the distribution and export/re-export of the software is in |
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106 | * compliance with all laws, regulations, orders, or other restrictions of the |
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107 | * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
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108 | * any of its subsidiaries will export/re-export any technical data, process, |
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109 | * software, or service, directly or indirectly, to any country for which the |
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110 | * United States government or any agency thereof requires an export license, |
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111 | * other governmental approval, or letter of assurance, without first obtaining |
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112 | * such license, approval or letter. |
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113 | * |
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114 | *****************************************************************************/ |
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115 | |||
116 | |||
117 | #define __RSUTILS_C__ |
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118 | |||
119 | #include "acpi.h" |
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120 | #include "accommon.h" |
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121 | #include "acnamesp.h" |
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122 | #include "acresrc.h" |
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123 | |||
124 | |||
125 | #define _COMPONENT ACPI_RESOURCES |
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126 | ACPI_MODULE_NAME ("rsutils") |
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127 | |||
128 | |||
129 | /******************************************************************************* |
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130 | * |
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131 | * FUNCTION: AcpiRsDecodeBitmask |
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132 | * |
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133 | * PARAMETERS: Mask - Bitmask to decode |
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134 | * List - Where the converted list is returned |
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135 | * |
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136 | * RETURN: Count of bits set (length of list) |
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137 | * |
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138 | * DESCRIPTION: Convert a bit mask into a list of values |
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139 | * |
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140 | ******************************************************************************/ |
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141 | |||
142 | UINT8 |
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143 | AcpiRsDecodeBitmask ( |
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144 | UINT16 Mask, |
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145 | UINT8 *List) |
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146 | { |
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147 | UINT8 i; |
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148 | UINT8 BitCount; |
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149 | |||
150 | |||
151 | ACPI_FUNCTION_ENTRY (); |
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152 | |||
153 | |||
154 | /* Decode the mask bits */ |
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155 | |||
156 | for (i = 0, BitCount = 0; Mask; i++) |
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157 | { |
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158 | if (Mask & 0x0001) |
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159 | { |
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160 | List[BitCount] = i; |
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161 | BitCount++; |
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162 | } |
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163 | |||
164 | Mask >>= 1; |
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165 | } |
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166 | |||
167 | return (BitCount); |
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168 | } |
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169 | |||
170 | |||
171 | /******************************************************************************* |
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172 | * |
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173 | * FUNCTION: AcpiRsEncodeBitmask |
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174 | * |
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175 | * PARAMETERS: List - List of values to encode |
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176 | * Count - Length of list |
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177 | * |
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178 | * RETURN: Encoded bitmask |
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179 | * |
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180 | * DESCRIPTION: Convert a list of values to an encoded bitmask |
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181 | * |
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182 | ******************************************************************************/ |
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183 | |||
184 | UINT16 |
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185 | AcpiRsEncodeBitmask ( |
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186 | UINT8 *List, |
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187 | UINT8 Count) |
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188 | { |
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189 | UINT32 i; |
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190 | UINT16 Mask; |
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191 | |||
192 | |||
193 | ACPI_FUNCTION_ENTRY (); |
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194 | |||
195 | |||
196 | /* Encode the list into a single bitmask */ |
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197 | |||
198 | for (i = 0, Mask = 0; i < Count; i++) |
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199 | { |
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200 | Mask |= (0x1 << List[i]); |
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201 | } |
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202 | |||
203 | return (Mask); |
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204 | } |
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205 | |||
206 | |||
207 | /******************************************************************************* |
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208 | * |
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209 | * FUNCTION: AcpiRsMoveData |
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210 | * |
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211 | * PARAMETERS: Destination - Pointer to the destination descriptor |
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212 | * Source - Pointer to the source descriptor |
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213 | * ItemCount - How many items to move |
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214 | * MoveType - Byte width |
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215 | * |
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216 | * RETURN: None |
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217 | * |
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218 | * DESCRIPTION: Move multiple data items from one descriptor to another. Handles |
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219 | * alignment issues and endian issues if necessary, as configured |
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220 | * via the ACPI_MOVE_* macros. (This is why a memcpy is not used) |
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221 | * |
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222 | ******************************************************************************/ |
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223 | |||
224 | void |
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225 | AcpiRsMoveData ( |
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226 | void *Destination, |
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227 | void *Source, |
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228 | UINT16 ItemCount, |
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229 | UINT8 MoveType) |
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230 | { |
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231 | UINT32 i; |
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232 | |||
233 | |||
234 | ACPI_FUNCTION_ENTRY (); |
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235 | |||
236 | |||
237 | /* One move per item */ |
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238 | |||
239 | for (i = 0; i < ItemCount; i++) |
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240 | { |
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241 | switch (MoveType) |
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242 | { |
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243 | /* |
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244 | * For the 8-bit case, we can perform the move all at once |
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245 | * since there are no alignment or endian issues |
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246 | */ |
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247 | case ACPI_RSC_MOVE8: |
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248 | ACPI_MEMCPY (Destination, Source, ItemCount); |
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249 | return; |
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250 | |||
251 | /* |
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252 | * 16-, 32-, and 64-bit cases must use the move macros that perform |
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253 | * endian conversion and/or accomodate hardware that cannot perform |
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254 | * misaligned memory transfers |
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255 | */ |
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256 | case ACPI_RSC_MOVE16: |
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257 | ACPI_MOVE_16_TO_16 (&ACPI_CAST_PTR (UINT16, Destination)[i], |
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258 | &ACPI_CAST_PTR (UINT16, Source)[i]); |
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259 | break; |
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260 | |||
261 | case ACPI_RSC_MOVE32: |
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262 | ACPI_MOVE_32_TO_32 (&ACPI_CAST_PTR (UINT32, Destination)[i], |
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263 | &ACPI_CAST_PTR (UINT32, Source)[i]); |
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264 | break; |
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265 | |||
266 | case ACPI_RSC_MOVE64: |
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267 | ACPI_MOVE_64_TO_64 (&ACPI_CAST_PTR (UINT64, Destination)[i], |
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268 | &ACPI_CAST_PTR (UINT64, Source)[i]); |
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269 | break; |
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270 | |||
271 | default: |
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272 | return; |
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273 | } |
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274 | } |
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275 | } |
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276 | |||
277 | |||
278 | /******************************************************************************* |
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279 | * |
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280 | * FUNCTION: AcpiRsSetResourceLength |
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281 | * |
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282 | * PARAMETERS: TotalLength - Length of the AML descriptor, including |
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283 | * the header and length fields. |
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284 | * Aml - Pointer to the raw AML descriptor |
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285 | * |
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286 | * RETURN: None |
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287 | * |
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288 | * DESCRIPTION: Set the ResourceLength field of an AML |
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289 | * resource descriptor, both Large and Small descriptors are |
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290 | * supported automatically. Note: Descriptor Type field must |
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291 | * be valid. |
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292 | * |
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293 | ******************************************************************************/ |
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294 | |||
295 | void |
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296 | AcpiRsSetResourceLength ( |
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297 | ACPI_RSDESC_SIZE TotalLength, |
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298 | AML_RESOURCE *Aml) |
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299 | { |
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300 | ACPI_RS_LENGTH ResourceLength; |
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301 | |||
302 | |||
303 | ACPI_FUNCTION_ENTRY (); |
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304 | |||
305 | |||
306 | /* Length is the total descriptor length minus the header length */ |
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307 | |||
308 | ResourceLength = (ACPI_RS_LENGTH) |
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309 | (TotalLength - AcpiUtGetResourceHeaderLength (Aml)); |
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310 | |||
311 | /* Length is stored differently for large and small descriptors */ |
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312 | |||
313 | if (Aml->SmallHeader.DescriptorType & ACPI_RESOURCE_NAME_LARGE) |
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314 | { |
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315 | /* Large descriptor -- bytes 1-2 contain the 16-bit length */ |
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316 | |||
317 | ACPI_MOVE_16_TO_16 (&Aml->LargeHeader.ResourceLength, &ResourceLength); |
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318 | } |
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319 | else |
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320 | { |
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321 | /* Small descriptor -- bits 2:0 of byte 0 contain the length */ |
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322 | |||
323 | Aml->SmallHeader.DescriptorType = (UINT8) |
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324 | |||
325 | /* Clear any existing length, preserving descriptor type bits */ |
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326 | |||
327 | ((Aml->SmallHeader.DescriptorType & ~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK) |
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328 | |||
329 | | ResourceLength); |
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330 | } |
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331 | } |
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332 | |||
333 | |||
334 | /******************************************************************************* |
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335 | * |
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336 | * FUNCTION: AcpiRsSetResourceHeader |
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337 | * |
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338 | * PARAMETERS: DescriptorType - Byte to be inserted as the type |
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339 | * TotalLength - Length of the AML descriptor, including |
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340 | * the header and length fields. |
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341 | * Aml - Pointer to the raw AML descriptor |
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342 | * |
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343 | * RETURN: None |
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344 | * |
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345 | * DESCRIPTION: Set the DescriptorType and ResourceLength fields of an AML |
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346 | * resource descriptor, both Large and Small descriptors are |
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347 | * supported automatically |
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348 | * |
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349 | ******************************************************************************/ |
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350 | |||
351 | void |
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352 | AcpiRsSetResourceHeader ( |
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353 | UINT8 DescriptorType, |
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354 | ACPI_RSDESC_SIZE TotalLength, |
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355 | AML_RESOURCE *Aml) |
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356 | { |
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357 | ACPI_FUNCTION_ENTRY (); |
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358 | |||
359 | |||
360 | /* Set the Resource Type */ |
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361 | |||
362 | Aml->SmallHeader.DescriptorType = DescriptorType; |
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363 | |||
364 | /* Set the Resource Length */ |
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365 | |||
366 | AcpiRsSetResourceLength (TotalLength, Aml); |
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367 | } |
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368 | |||
369 | |||
370 | /******************************************************************************* |
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371 | * |
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372 | * FUNCTION: AcpiRsStrcpy |
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373 | * |
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374 | * PARAMETERS: Destination - Pointer to the destination string |
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375 | * Source - Pointer to the source string |
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376 | * |
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377 | * RETURN: String length, including NULL terminator |
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378 | * |
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379 | * DESCRIPTION: Local string copy that returns the string length, saving a |
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380 | * strcpy followed by a strlen. |
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381 | * |
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382 | ******************************************************************************/ |
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383 | |||
384 | static UINT16 |
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385 | AcpiRsStrcpy ( |
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386 | char *Destination, |
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387 | char *Source) |
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388 | { |
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389 | UINT16 i; |
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390 | |||
391 | |||
392 | ACPI_FUNCTION_ENTRY (); |
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393 | |||
394 | |||
395 | for (i = 0; Source[i]; i++) |
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396 | { |
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397 | Destination[i] = Source[i]; |
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398 | } |
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399 | |||
400 | Destination[i] = 0; |
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401 | |||
402 | /* Return string length including the NULL terminator */ |
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403 | |||
404 | return ((UINT16) (i + 1)); |
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405 | } |
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406 | |||
407 | |||
408 | /******************************************************************************* |
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409 | * |
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410 | * FUNCTION: AcpiRsGetResourceSource |
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411 | * |
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412 | * PARAMETERS: ResourceLength - Length field of the descriptor |
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413 | * MinimumLength - Minimum length of the descriptor (minus |
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414 | * any optional fields) |
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415 | * ResourceSource - Where the ResourceSource is returned |
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416 | * Aml - Pointer to the raw AML descriptor |
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417 | * StringPtr - (optional) where to store the actual |
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418 | * ResourceSource string |
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419 | * |
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420 | * RETURN: Length of the string plus NULL terminator, rounded up to native |
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421 | * word boundary |
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422 | * |
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423 | * DESCRIPTION: Copy the optional ResourceSource data from a raw AML descriptor |
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424 | * to an internal resource descriptor |
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425 | * |
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426 | ******************************************************************************/ |
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427 | |||
428 | ACPI_RS_LENGTH |
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429 | AcpiRsGetResourceSource ( |
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430 | ACPI_RS_LENGTH ResourceLength, |
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431 | ACPI_RS_LENGTH MinimumLength, |
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432 | ACPI_RESOURCE_SOURCE *ResourceSource, |
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433 | AML_RESOURCE *Aml, |
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434 | char *StringPtr) |
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435 | { |
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436 | ACPI_RSDESC_SIZE TotalLength; |
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437 | UINT8 *AmlResourceSource; |
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438 | |||
439 | |||
440 | ACPI_FUNCTION_ENTRY (); |
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441 | |||
442 | |||
443 | TotalLength = ResourceLength + sizeof (AML_RESOURCE_LARGE_HEADER); |
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444 | AmlResourceSource = ACPI_ADD_PTR (UINT8, Aml, MinimumLength); |
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445 | |||
446 | /* |
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447 | * ResourceSource is present if the length of the descriptor is longer than |
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448 | * the minimum length. |
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449 | * |
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450 | * Note: Some resource descriptors will have an additional null, so |
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451 | * we add 1 to the minimum length. |
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452 | */ |
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453 | if (TotalLength > (ACPI_RSDESC_SIZE) (MinimumLength + 1)) |
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454 | { |
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455 | /* Get the ResourceSourceIndex */ |
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456 | |||
457 | ResourceSource->Index = AmlResourceSource[0]; |
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458 | |||
459 | ResourceSource->StringPtr = StringPtr; |
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460 | if (!StringPtr) |
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461 | { |
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462 | /* |
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463 | * String destination pointer is not specified; Set the String |
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464 | * pointer to the end of the current ResourceSource structure. |
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465 | */ |
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466 | ResourceSource->StringPtr = ACPI_ADD_PTR (char, ResourceSource, |
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467 | sizeof (ACPI_RESOURCE_SOURCE)); |
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468 | } |
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469 | |||
470 | /* |
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471 | * In order for the Resource length to be a multiple of the native |
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472 | * word, calculate the length of the string (+1 for NULL terminator) |
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473 | * and expand to the next word multiple. |
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474 | * |
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475 | * Zero the entire area of the buffer. |
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476 | */ |
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477 | TotalLength = (UINT32) ACPI_STRLEN ( |
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478 | ACPI_CAST_PTR (char, &AmlResourceSource[1])) + 1; |
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479 | TotalLength = (UINT32) ACPI_ROUND_UP_TO_NATIVE_WORD (TotalLength); |
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480 | |||
481 | ACPI_MEMSET (ResourceSource->StringPtr, 0, TotalLength); |
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482 | |||
483 | /* Copy the ResourceSource string to the destination */ |
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484 | |||
485 | ResourceSource->StringLength = AcpiRsStrcpy (ResourceSource->StringPtr, |
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486 | ACPI_CAST_PTR (char, &AmlResourceSource[1])); |
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487 | |||
488 | return ((ACPI_RS_LENGTH) TotalLength); |
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489 | } |
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490 | |||
491 | /* ResourceSource is not present */ |
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492 | |||
493 | ResourceSource->Index = 0; |
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494 | ResourceSource->StringLength = 0; |
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495 | ResourceSource->StringPtr = NULL; |
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496 | return (0); |
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497 | } |
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498 | |||
499 | |||
500 | /******************************************************************************* |
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501 | * |
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502 | * FUNCTION: AcpiRsSetResourceSource |
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503 | * |
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504 | * PARAMETERS: Aml - Pointer to the raw AML descriptor |
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505 | * MinimumLength - Minimum length of the descriptor (minus |
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506 | * any optional fields) |
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507 | * ResourceSource - Internal ResourceSource |
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508 | |||
509 | * |
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510 | * RETURN: Total length of the AML descriptor |
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511 | * |
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512 | * DESCRIPTION: Convert an optional ResourceSource from internal format to a |
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513 | * raw AML resource descriptor |
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514 | * |
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515 | ******************************************************************************/ |
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516 | |||
517 | ACPI_RSDESC_SIZE |
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518 | AcpiRsSetResourceSource ( |
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519 | AML_RESOURCE *Aml, |
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520 | ACPI_RS_LENGTH MinimumLength, |
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521 | ACPI_RESOURCE_SOURCE *ResourceSource) |
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522 | { |
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523 | UINT8 *AmlResourceSource; |
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524 | ACPI_RSDESC_SIZE DescriptorLength; |
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525 | |||
526 | |||
527 | ACPI_FUNCTION_ENTRY (); |
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528 | |||
529 | |||
530 | DescriptorLength = MinimumLength; |
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531 | |||
532 | /* Non-zero string length indicates presence of a ResourceSource */ |
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533 | |||
534 | if (ResourceSource->StringLength) |
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535 | { |
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536 | /* Point to the end of the AML descriptor */ |
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537 | |||
538 | AmlResourceSource = ACPI_ADD_PTR (UINT8, Aml, MinimumLength); |
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539 | |||
540 | /* Copy the ResourceSourceIndex */ |
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541 | |||
542 | AmlResourceSource[0] = (UINT8) ResourceSource->Index; |
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543 | |||
544 | /* Copy the ResourceSource string */ |
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545 | |||
546 | ACPI_STRCPY (ACPI_CAST_PTR (char, &AmlResourceSource[1]), |
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547 | ResourceSource->StringPtr); |
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548 | |||
549 | /* |
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550 | * Add the length of the string (+ 1 for null terminator) to the |
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551 | * final descriptor length |
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552 | */ |
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553 | DescriptorLength += ((ACPI_RSDESC_SIZE) ResourceSource->StringLength + 1); |
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554 | } |
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555 | |||
556 | /* Return the new total length of the AML descriptor */ |
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557 | |||
558 | return (DescriptorLength); |
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559 | } |
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560 | |||
561 | |||
562 | /******************************************************************************* |
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563 | * |
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564 | * FUNCTION: AcpiRsGetPrtMethodData |
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565 | * |
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566 | * PARAMETERS: Node - Device node |
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567 | * RetBuffer - Pointer to a buffer structure for the |
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568 | * results |
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569 | * |
||
570 | * RETURN: Status |
||
571 | * |
||
572 | * DESCRIPTION: This function is called to get the _PRT value of an object |
||
573 | * contained in an object specified by the handle passed in |
||
574 | * |
||
575 | * If the function fails an appropriate status will be returned |
||
576 | * and the contents of the callers buffer is undefined. |
||
577 | * |
||
578 | ******************************************************************************/ |
||
579 | |||
580 | ACPI_STATUS |
||
581 | AcpiRsGetPrtMethodData ( |
||
582 | ACPI_NAMESPACE_NODE *Node, |
||
583 | ACPI_BUFFER *RetBuffer) |
||
584 | { |
||
585 | ACPI_OPERAND_OBJECT *ObjDesc; |
||
586 | ACPI_STATUS Status; |
||
587 | |||
588 | |||
589 | ACPI_FUNCTION_TRACE (RsGetPrtMethodData); |
||
590 | |||
591 | |||
592 | /* Parameters guaranteed valid by caller */ |
||
593 | |||
594 | /* Execute the method, no parameters */ |
||
595 | |||
596 | Status = AcpiUtEvaluateObject (Node, METHOD_NAME__PRT, |
||
597 | ACPI_BTYPE_PACKAGE, &ObjDesc); |
||
598 | if (ACPI_FAILURE (Status)) |
||
599 | { |
||
600 | return_ACPI_STATUS (Status); |
||
601 | } |
||
602 | |||
603 | /* |
||
604 | * Create a resource linked list from the byte stream buffer that comes |
||
605 | * back from the _CRS method execution. |
||
606 | */ |
||
607 | Status = AcpiRsCreatePciRoutingTable (ObjDesc, RetBuffer); |
||
608 | |||
609 | /* On exit, we must delete the object returned by EvaluateObject */ |
||
610 | |||
611 | AcpiUtRemoveReference (ObjDesc); |
||
612 | return_ACPI_STATUS (Status); |
||
613 | } |
||
614 | |||
615 | |||
616 | /******************************************************************************* |
||
617 | * |
||
618 | * FUNCTION: AcpiRsGetCrsMethodData |
||
619 | * |
||
620 | * PARAMETERS: Node - Device node |
||
621 | * RetBuffer - Pointer to a buffer structure for the |
||
622 | * results |
||
623 | * |
||
624 | * RETURN: Status |
||
625 | * |
||
626 | * DESCRIPTION: This function is called to get the _CRS value of an object |
||
627 | * contained in an object specified by the handle passed in |
||
628 | * |
||
629 | * If the function fails an appropriate status will be returned |
||
630 | * and the contents of the callers buffer is undefined. |
||
631 | * |
||
632 | ******************************************************************************/ |
||
633 | |||
634 | ACPI_STATUS |
||
635 | AcpiRsGetCrsMethodData ( |
||
636 | ACPI_NAMESPACE_NODE *Node, |
||
637 | ACPI_BUFFER *RetBuffer) |
||
638 | { |
||
639 | ACPI_OPERAND_OBJECT *ObjDesc; |
||
640 | ACPI_STATUS Status; |
||
641 | |||
642 | |||
643 | ACPI_FUNCTION_TRACE (RsGetCrsMethodData); |
||
644 | |||
645 | |||
646 | /* Parameters guaranteed valid by caller */ |
||
647 | |||
648 | /* Execute the method, no parameters */ |
||
649 | |||
650 | Status = AcpiUtEvaluateObject (Node, METHOD_NAME__CRS, |
||
651 | ACPI_BTYPE_BUFFER, &ObjDesc); |
||
652 | if (ACPI_FAILURE (Status)) |
||
653 | { |
||
654 | return_ACPI_STATUS (Status); |
||
655 | } |
||
656 | |||
657 | /* |
||
658 | * Make the call to create a resource linked list from the |
||
659 | * byte stream buffer that comes back from the _CRS method |
||
660 | * execution. |
||
661 | */ |
||
662 | Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer); |
||
663 | |||
664 | /* On exit, we must delete the object returned by evaluateObject */ |
||
665 | |||
666 | AcpiUtRemoveReference (ObjDesc); |
||
667 | return_ACPI_STATUS (Status); |
||
668 | } |
||
669 | |||
670 | |||
671 | /******************************************************************************* |
||
672 | * |
||
673 | * FUNCTION: AcpiRsGetPrsMethodData |
||
674 | * |
||
675 | * PARAMETERS: Node - Device node |
||
676 | * RetBuffer - Pointer to a buffer structure for the |
||
677 | * results |
||
678 | * |
||
679 | * RETURN: Status |
||
680 | * |
||
681 | * DESCRIPTION: This function is called to get the _PRS value of an object |
||
682 | * contained in an object specified by the handle passed in |
||
683 | * |
||
684 | * If the function fails an appropriate status will be returned |
||
685 | * and the contents of the callers buffer is undefined. |
||
686 | * |
||
687 | ******************************************************************************/ |
||
688 | |||
689 | ACPI_STATUS |
||
690 | AcpiRsGetPrsMethodData ( |
||
691 | ACPI_NAMESPACE_NODE *Node, |
||
692 | ACPI_BUFFER *RetBuffer) |
||
693 | { |
||
694 | ACPI_OPERAND_OBJECT *ObjDesc; |
||
695 | ACPI_STATUS Status; |
||
696 | |||
697 | |||
698 | ACPI_FUNCTION_TRACE (RsGetPrsMethodData); |
||
699 | |||
700 | |||
701 | /* Parameters guaranteed valid by caller */ |
||
702 | |||
703 | /* Execute the method, no parameters */ |
||
704 | |||
705 | Status = AcpiUtEvaluateObject (Node, METHOD_NAME__PRS, |
||
706 | ACPI_BTYPE_BUFFER, &ObjDesc); |
||
707 | if (ACPI_FAILURE (Status)) |
||
708 | { |
||
709 | return_ACPI_STATUS (Status); |
||
710 | } |
||
711 | |||
712 | /* |
||
713 | * Make the call to create a resource linked list from the |
||
714 | * byte stream buffer that comes back from the _CRS method |
||
715 | * execution. |
||
716 | */ |
||
717 | Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer); |
||
718 | |||
719 | /* On exit, we must delete the object returned by evaluateObject */ |
||
720 | |||
721 | AcpiUtRemoveReference (ObjDesc); |
||
722 | return_ACPI_STATUS (Status); |
||
723 | } |
||
724 | |||
725 | |||
726 | /******************************************************************************* |
||
727 | * |
||
728 | * FUNCTION: AcpiRsGetMethodData |
||
729 | * |
||
730 | * PARAMETERS: Handle - Handle to the containing object |
||
731 | * Path - Path to method, relative to Handle |
||
732 | * RetBuffer - Pointer to a buffer structure for the |
||
733 | * results |
||
734 | * |
||
735 | * RETURN: Status |
||
736 | * |
||
737 | * DESCRIPTION: This function is called to get the _CRS or _PRS value of an |
||
738 | * object contained in an object specified by the handle passed in |
||
739 | * |
||
740 | * If the function fails an appropriate status will be returned |
||
741 | * and the contents of the callers buffer is undefined. |
||
742 | * |
||
743 | ******************************************************************************/ |
||
744 | |||
745 | ACPI_STATUS |
||
746 | AcpiRsGetMethodData ( |
||
747 | ACPI_HANDLE Handle, |
||
748 | char *Path, |
||
749 | ACPI_BUFFER *RetBuffer) |
||
750 | { |
||
751 | ACPI_OPERAND_OBJECT *ObjDesc; |
||
752 | ACPI_STATUS Status; |
||
753 | |||
754 | |||
755 | ACPI_FUNCTION_TRACE (RsGetMethodData); |
||
756 | |||
757 | |||
758 | /* Parameters guaranteed valid by caller */ |
||
759 | |||
760 | /* Execute the method, no parameters */ |
||
761 | |||
762 | Status = AcpiUtEvaluateObject (Handle, Path, ACPI_BTYPE_BUFFER, &ObjDesc); |
||
763 | if (ACPI_FAILURE (Status)) |
||
764 | { |
||
765 | return_ACPI_STATUS (Status); |
||
766 | } |
||
767 | |||
768 | /* |
||
769 | * Make the call to create a resource linked list from the |
||
770 | * byte stream buffer that comes back from the method |
||
771 | * execution. |
||
772 | */ |
||
773 | Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer); |
||
774 | |||
775 | /* On exit, we must delete the object returned by EvaluateObject */ |
||
776 | |||
777 | AcpiUtRemoveReference (ObjDesc); |
||
778 | return_ACPI_STATUS (Status); |
||
779 | } |
||
780 | |||
781 | |||
782 | /******************************************************************************* |
||
783 | * |
||
784 | * FUNCTION: AcpiRsSetSrsMethodData |
||
785 | * |
||
786 | * PARAMETERS: Node - Device node |
||
787 | * InBuffer - Pointer to a buffer structure of the |
||
788 | * parameter |
||
789 | * |
||
790 | * RETURN: Status |
||
791 | * |
||
792 | * DESCRIPTION: This function is called to set the _SRS of an object contained |
||
793 | * in an object specified by the handle passed in |
||
794 | * |
||
795 | * If the function fails an appropriate status will be returned |
||
796 | * and the contents of the callers buffer is undefined. |
||
797 | * |
||
798 | * Note: Parameters guaranteed valid by caller |
||
799 | * |
||
800 | ******************************************************************************/ |
||
801 | |||
802 | ACPI_STATUS |
||
803 | AcpiRsSetSrsMethodData ( |
||
804 | ACPI_NAMESPACE_NODE *Node, |
||
805 | ACPI_BUFFER *InBuffer) |
||
806 | { |
||
807 | ACPI_EVALUATE_INFO *Info; |
||
808 | ACPI_OPERAND_OBJECT *Args[2]; |
||
809 | ACPI_STATUS Status; |
||
810 | ACPI_BUFFER Buffer; |
||
811 | |||
812 | |||
813 | ACPI_FUNCTION_TRACE (RsSetSrsMethodData); |
||
814 | |||
815 | |||
816 | /* Allocate and initialize the evaluation information block */ |
||
817 | |||
818 | Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO)); |
||
819 | if (!Info) |
||
820 | { |
||
821 | return_ACPI_STATUS (AE_NO_MEMORY); |
||
822 | } |
||
823 | |||
824 | Info->PrefixNode = Node; |
||
825 | Info->Pathname = METHOD_NAME__SRS; |
||
826 | Info->Parameters = Args; |
||
827 | Info->Flags = ACPI_IGNORE_RETURN_VALUE; |
||
828 | |||
829 | /* |
||
830 | * The InBuffer parameter will point to a linked list of |
||
831 | * resource parameters. It needs to be formatted into a |
||
832 | * byte stream to be sent in as an input parameter to _SRS |
||
833 | * |
||
834 | * Convert the linked list into a byte stream |
||
835 | */ |
||
836 | Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER; |
||
837 | Status = AcpiRsCreateAmlResources (InBuffer->Pointer, &Buffer); |
||
838 | if (ACPI_FAILURE (Status)) |
||
839 | { |
||
840 | goto Cleanup; |
||
841 | } |
||
842 | |||
843 | /* Create and initialize the method parameter object */ |
||
844 | |||
845 | Args[0] = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER); |
||
846 | if (!Args[0]) |
||
847 | { |
||
848 | /* |
||
849 | * Must free the buffer allocated above (otherwise it is freed |
||
850 | * later) |
||
851 | */ |
||
852 | ACPI_FREE (Buffer.Pointer); |
||
853 | Status = AE_NO_MEMORY; |
||
854 | goto Cleanup; |
||
855 | } |
||
856 | |||
857 | Args[0]->Buffer.Length = (UINT32) Buffer.Length; |
||
858 | Args[0]->Buffer.Pointer = Buffer.Pointer; |
||
859 | Args[0]->Common.Flags = AOPOBJ_DATA_VALID; |
||
860 | Args[1] = NULL; |
||
861 | |||
862 | /* Execute the method, no return value is expected */ |
||
863 | |||
864 | Status = AcpiNsEvaluate (Info); |
||
865 | |||
866 | /* Clean up and return the status from AcpiNsEvaluate */ |
||
867 | |||
868 | AcpiUtRemoveReference (Args[0]); |
||
869 | |||
870 | Cleanup: |
||
871 | ACPI_FREE (Info); |
||
872 | return_ACPI_STATUS (Status); |
||
873 | }>><>> |
||
874 |