dtsubtable.c revision 1.1.1.2.2.2
1 1.1.1.2.2.2 bouyer /****************************************************************************** 2 1.1.1.2.2.2 bouyer * 3 1.1.1.2.2.2 bouyer * Module Name: dtsubtable.c - handling of subtables within ACPI tables 4 1.1.1.2.2.2 bouyer * 5 1.1.1.2.2.2 bouyer *****************************************************************************/ 6 1.1.1.2.2.2 bouyer 7 1.1.1.2.2.2 bouyer /* 8 1.1.1.2.2.2 bouyer * Copyright (C) 2000 - 2011, Intel Corp. 9 1.1.1.2.2.2 bouyer * All rights reserved. 10 1.1.1.2.2.2 bouyer * 11 1.1.1.2.2.2 bouyer * Redistribution and use in source and binary forms, with or without 12 1.1.1.2.2.2 bouyer * modification, are permitted provided that the following conditions 13 1.1.1.2.2.2 bouyer * are met: 14 1.1.1.2.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 15 1.1.1.2.2.2 bouyer * notice, this list of conditions, and the following disclaimer, 16 1.1.1.2.2.2 bouyer * without modification. 17 1.1.1.2.2.2 bouyer * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 1.1.1.2.2.2 bouyer * substantially similar to the "NO WARRANTY" disclaimer below 19 1.1.1.2.2.2 bouyer * ("Disclaimer") and any redistribution must be conditioned upon 20 1.1.1.2.2.2 bouyer * including a substantially similar Disclaimer requirement for further 21 1.1.1.2.2.2 bouyer * binary redistribution. 22 1.1.1.2.2.2 bouyer * 3. Neither the names of the above-listed copyright holders nor the names 23 1.1.1.2.2.2 bouyer * of any contributors may be used to endorse or promote products derived 24 1.1.1.2.2.2 bouyer * from this software without specific prior written permission. 25 1.1.1.2.2.2 bouyer * 26 1.1.1.2.2.2 bouyer * Alternatively, this software may be distributed under the terms of the 27 1.1.1.2.2.2 bouyer * GNU General Public License ("GPL") version 2 as published by the Free 28 1.1.1.2.2.2 bouyer * Software Foundation. 29 1.1.1.2.2.2 bouyer * 30 1.1.1.2.2.2 bouyer * NO WARRANTY 31 1.1.1.2.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 1.1.1.2.2.2 bouyer * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 1.1.1.2.2.2 bouyer * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 1.1.1.2.2.2 bouyer * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 1.1.1.2.2.2 bouyer * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 1.1.1.2.2.2 bouyer * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 1.1.1.2.2.2 bouyer * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 1.1.1.2.2.2 bouyer * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 1.1.1.2.2.2 bouyer * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 1.1.1.2.2.2 bouyer * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 1.1.1.2.2.2 bouyer * POSSIBILITY OF SUCH DAMAGES. 42 1.1.1.2.2.2 bouyer */ 43 1.1.1.2.2.2 bouyer 44 1.1.1.2.2.2 bouyer #define __DTSUBTABLE_C__ 45 1.1.1.2.2.2 bouyer 46 1.1.1.2.2.2 bouyer #include "aslcompiler.h" 47 1.1.1.2.2.2 bouyer #include "dtcompiler.h" 48 1.1.1.2.2.2 bouyer 49 1.1.1.2.2.2 bouyer #define _COMPONENT DT_COMPILER 50 1.1.1.2.2.2 bouyer ACPI_MODULE_NAME ("dtsubtable") 51 1.1.1.2.2.2 bouyer 52 1.1.1.2.2.2 bouyer 53 1.1.1.2.2.2 bouyer /****************************************************************************** 54 1.1.1.2.2.2 bouyer * 55 1.1.1.2.2.2 bouyer * FUNCTION: DtCreateSubtable 56 1.1.1.2.2.2 bouyer * 57 1.1.1.2.2.2 bouyer * PARAMETERS: Buffer - Input buffer 58 1.1.1.2.2.2 bouyer * Length - Buffer length 59 1.1.1.2.2.2 bouyer * RetSubtable - Returned newly created subtable 60 1.1.1.2.2.2 bouyer * 61 1.1.1.2.2.2 bouyer * RETURN: None 62 1.1.1.2.2.2 bouyer * 63 1.1.1.2.2.2 bouyer * DESCRIPTION: Create a subtable that is not listed with ACPI_DMTABLE_INFO 64 1.1.1.2.2.2 bouyer * For example, FACS has 24 bytes reserved at the end 65 1.1.1.2.2.2 bouyer * and it's not listed at AcpiDmTableInfoFacs 66 1.1.1.2.2.2 bouyer * 67 1.1.1.2.2.2 bouyer *****************************************************************************/ 68 1.1.1.2.2.2 bouyer 69 1.1.1.2.2.2 bouyer void 70 1.1.1.2.2.2 bouyer DtCreateSubtable ( 71 1.1.1.2.2.2 bouyer UINT8 *Buffer, 72 1.1.1.2.2.2 bouyer UINT32 Length, 73 1.1.1.2.2.2 bouyer DT_SUBTABLE **RetSubtable) 74 1.1.1.2.2.2 bouyer { 75 1.1.1.2.2.2 bouyer DT_SUBTABLE *Subtable; 76 1.1.1.2.2.2 bouyer 77 1.1.1.2.2.2 bouyer 78 1.1.1.2.2.2 bouyer Subtable = UtLocalCalloc (sizeof (DT_SUBTABLE)); 79 1.1.1.2.2.2 bouyer 80 1.1.1.2.2.2 bouyer /* Create a new buffer for the subtable data */ 81 1.1.1.2.2.2 bouyer 82 1.1.1.2.2.2 bouyer Subtable->Buffer = UtLocalCalloc (Length); 83 1.1.1.2.2.2 bouyer ACPI_MEMCPY (Subtable->Buffer, Buffer, Length); 84 1.1.1.2.2.2 bouyer 85 1.1.1.2.2.2 bouyer Subtable->Length = Length; 86 1.1.1.2.2.2 bouyer Subtable->TotalLength = Length; 87 1.1.1.2.2.2 bouyer 88 1.1.1.2.2.2 bouyer *RetSubtable = Subtable; 89 1.1.1.2.2.2 bouyer } 90 1.1.1.2.2.2 bouyer 91 1.1.1.2.2.2 bouyer 92 1.1.1.2.2.2 bouyer /****************************************************************************** 93 1.1.1.2.2.2 bouyer * 94 1.1.1.2.2.2 bouyer * FUNCTION: DtInsertSubtable 95 1.1.1.2.2.2 bouyer * 96 1.1.1.2.2.2 bouyer * PARAMETERS: ParentTable - The Parent of the new subtable 97 1.1.1.2.2.2 bouyer * Subtable - The new subtable to insert 98 1.1.1.2.2.2 bouyer * 99 1.1.1.2.2.2 bouyer * RETURN: None 100 1.1.1.2.2.2 bouyer * 101 1.1.1.2.2.2 bouyer * DESCRIPTION: Insert the new subtable to the parent table 102 1.1.1.2.2.2 bouyer * 103 1.1.1.2.2.2 bouyer *****************************************************************************/ 104 1.1.1.2.2.2 bouyer 105 1.1.1.2.2.2 bouyer void 106 1.1.1.2.2.2 bouyer DtInsertSubtable ( 107 1.1.1.2.2.2 bouyer DT_SUBTABLE *ParentTable, 108 1.1.1.2.2.2 bouyer DT_SUBTABLE *Subtable) 109 1.1.1.2.2.2 bouyer { 110 1.1.1.2.2.2 bouyer DT_SUBTABLE *ChildTable; 111 1.1.1.2.2.2 bouyer 112 1.1.1.2.2.2 bouyer 113 1.1.1.2.2.2 bouyer Subtable->Peer = NULL; 114 1.1.1.2.2.2 bouyer Subtable->Parent = ParentTable; 115 1.1.1.2.2.2 bouyer 116 1.1.1.2.2.2 bouyer /* Link the new entry into the child list */ 117 1.1.1.2.2.2 bouyer 118 1.1.1.2.2.2 bouyer if (!ParentTable->Child) 119 1.1.1.2.2.2 bouyer { 120 1.1.1.2.2.2 bouyer ParentTable->Child = Subtable; 121 1.1.1.2.2.2 bouyer } 122 1.1.1.2.2.2 bouyer else 123 1.1.1.2.2.2 bouyer { 124 1.1.1.2.2.2 bouyer /* Walk to the end of the child list */ 125 1.1.1.2.2.2 bouyer 126 1.1.1.2.2.2 bouyer ChildTable = ParentTable->Child; 127 1.1.1.2.2.2 bouyer while (ChildTable->Peer) 128 1.1.1.2.2.2 bouyer { 129 1.1.1.2.2.2 bouyer ChildTable = ChildTable->Peer; 130 1.1.1.2.2.2 bouyer } 131 1.1.1.2.2.2 bouyer 132 1.1.1.2.2.2 bouyer /* Add new subtable at the end of the child list */ 133 1.1.1.2.2.2 bouyer 134 1.1.1.2.2.2 bouyer ChildTable->Peer = Subtable; 135 1.1.1.2.2.2 bouyer } 136 1.1.1.2.2.2 bouyer } 137 1.1.1.2.2.2 bouyer 138 1.1.1.2.2.2 bouyer 139 1.1.1.2.2.2 bouyer /****************************************************************************** 140 1.1.1.2.2.2 bouyer * 141 1.1.1.2.2.2 bouyer * FUNCTION: DtPushSubtable 142 1.1.1.2.2.2 bouyer * 143 1.1.1.2.2.2 bouyer * PARAMETERS: Subtable - Subtable to push 144 1.1.1.2.2.2 bouyer * 145 1.1.1.2.2.2 bouyer * RETURN: None 146 1.1.1.2.2.2 bouyer * 147 1.1.1.2.2.2 bouyer * DESCRIPTION: Push a subtable onto a subtable stack 148 1.1.1.2.2.2 bouyer * 149 1.1.1.2.2.2 bouyer *****************************************************************************/ 150 1.1.1.2.2.2 bouyer 151 1.1.1.2.2.2 bouyer void 152 1.1.1.2.2.2 bouyer DtPushSubtable ( 153 1.1.1.2.2.2 bouyer DT_SUBTABLE *Subtable) 154 1.1.1.2.2.2 bouyer { 155 1.1.1.2.2.2 bouyer 156 1.1.1.2.2.2 bouyer Subtable->StackTop = Gbl_SubtableStack; 157 1.1.1.2.2.2 bouyer Gbl_SubtableStack = Subtable; 158 1.1.1.2.2.2 bouyer } 159 1.1.1.2.2.2 bouyer 160 1.1.1.2.2.2 bouyer 161 1.1.1.2.2.2 bouyer /****************************************************************************** 162 1.1.1.2.2.2 bouyer * 163 1.1.1.2.2.2 bouyer * FUNCTION: DtPopSubtable 164 1.1.1.2.2.2 bouyer * 165 1.1.1.2.2.2 bouyer * PARAMETERS: None 166 1.1.1.2.2.2 bouyer * 167 1.1.1.2.2.2 bouyer * RETURN: None 168 1.1.1.2.2.2 bouyer * 169 1.1.1.2.2.2 bouyer * DESCRIPTION: Pop a subtable from a subtable stack. Uses global SubtableStack 170 1.1.1.2.2.2 bouyer * 171 1.1.1.2.2.2 bouyer *****************************************************************************/ 172 1.1.1.2.2.2 bouyer 173 1.1.1.2.2.2 bouyer void 174 1.1.1.2.2.2 bouyer DtPopSubtable ( 175 1.1.1.2.2.2 bouyer void) 176 1.1.1.2.2.2 bouyer { 177 1.1.1.2.2.2 bouyer DT_SUBTABLE *Subtable; 178 1.1.1.2.2.2 bouyer 179 1.1.1.2.2.2 bouyer 180 1.1.1.2.2.2 bouyer Subtable = Gbl_SubtableStack; 181 1.1.1.2.2.2 bouyer 182 1.1.1.2.2.2 bouyer if (Subtable) 183 1.1.1.2.2.2 bouyer { 184 1.1.1.2.2.2 bouyer Gbl_SubtableStack = Subtable->StackTop; 185 1.1.1.2.2.2 bouyer } 186 1.1.1.2.2.2 bouyer } 187 1.1.1.2.2.2 bouyer 188 1.1.1.2.2.2 bouyer 189 1.1.1.2.2.2 bouyer /****************************************************************************** 190 1.1.1.2.2.2 bouyer * 191 1.1.1.2.2.2 bouyer * FUNCTION: DtPeekSubtable 192 1.1.1.2.2.2 bouyer * 193 1.1.1.2.2.2 bouyer * PARAMETERS: None 194 1.1.1.2.2.2 bouyer * 195 1.1.1.2.2.2 bouyer * RETURN: The subtable on top of stack 196 1.1.1.2.2.2 bouyer * 197 1.1.1.2.2.2 bouyer * DESCRIPTION: Get the subtable on top of stack 198 1.1.1.2.2.2 bouyer * 199 1.1.1.2.2.2 bouyer *****************************************************************************/ 200 1.1.1.2.2.2 bouyer 201 1.1.1.2.2.2 bouyer DT_SUBTABLE * 202 1.1.1.2.2.2 bouyer DtPeekSubtable ( 203 1.1.1.2.2.2 bouyer void) 204 1.1.1.2.2.2 bouyer { 205 1.1.1.2.2.2 bouyer 206 1.1.1.2.2.2 bouyer return (Gbl_SubtableStack); 207 1.1.1.2.2.2 bouyer } 208 1.1.1.2.2.2 bouyer 209 1.1.1.2.2.2 bouyer 210 1.1.1.2.2.2 bouyer /****************************************************************************** 211 1.1.1.2.2.2 bouyer * 212 1.1.1.2.2.2 bouyer * FUNCTION: DtGetNextSubtable 213 1.1.1.2.2.2 bouyer * 214 1.1.1.2.2.2 bouyer * PARAMETERS: ParentTable - Parent table whose children we are 215 1.1.1.2.2.2 bouyer * getting 216 1.1.1.2.2.2 bouyer * ChildTable - Previous child that was found. 217 1.1.1.2.2.2 bouyer * The NEXT child will be returned 218 1.1.1.2.2.2 bouyer * 219 1.1.1.2.2.2 bouyer * RETURN: Pointer to the NEXT child or NULL if none is found. 220 1.1.1.2.2.2 bouyer * 221 1.1.1.2.2.2 bouyer * DESCRIPTION: Return the next peer subtable within the tree. 222 1.1.1.2.2.2 bouyer * 223 1.1.1.2.2.2 bouyer *****************************************************************************/ 224 1.1.1.2.2.2 bouyer 225 1.1.1.2.2.2 bouyer DT_SUBTABLE * 226 1.1.1.2.2.2 bouyer DtGetNextSubtable ( 227 1.1.1.2.2.2 bouyer DT_SUBTABLE *ParentTable, 228 1.1.1.2.2.2 bouyer DT_SUBTABLE *ChildTable) 229 1.1.1.2.2.2 bouyer { 230 1.1.1.2.2.2 bouyer ACPI_FUNCTION_ENTRY (); 231 1.1.1.2.2.2 bouyer 232 1.1.1.2.2.2 bouyer 233 1.1.1.2.2.2 bouyer if (!ChildTable) 234 1.1.1.2.2.2 bouyer { 235 1.1.1.2.2.2 bouyer /* It's really the parent's _scope_ that we want */ 236 1.1.1.2.2.2 bouyer 237 1.1.1.2.2.2 bouyer return (ParentTable->Child); 238 1.1.1.2.2.2 bouyer } 239 1.1.1.2.2.2 bouyer 240 1.1.1.2.2.2 bouyer /* Otherwise just return the next peer (NULL if at end-of-list) */ 241 1.1.1.2.2.2 bouyer 242 1.1.1.2.2.2 bouyer return (ChildTable->Peer); 243 1.1.1.2.2.2 bouyer } 244 1.1.1.2.2.2 bouyer 245 1.1.1.2.2.2 bouyer 246 1.1.1.2.2.2 bouyer /****************************************************************************** 247 1.1.1.2.2.2 bouyer * 248 1.1.1.2.2.2 bouyer * FUNCTION: DtGetParentSubtable 249 1.1.1.2.2.2 bouyer * 250 1.1.1.2.2.2 bouyer * PARAMETERS: Subtable - Current subtable 251 1.1.1.2.2.2 bouyer * 252 1.1.1.2.2.2 bouyer * RETURN: Parent of the given subtable 253 1.1.1.2.2.2 bouyer * 254 1.1.1.2.2.2 bouyer * DESCRIPTION: Get the parent of the given subtable in the tree 255 1.1.1.2.2.2 bouyer * 256 1.1.1.2.2.2 bouyer *****************************************************************************/ 257 1.1.1.2.2.2 bouyer 258 1.1.1.2.2.2 bouyer DT_SUBTABLE * 259 1.1.1.2.2.2 bouyer DtGetParentSubtable ( 260 1.1.1.2.2.2 bouyer DT_SUBTABLE *Subtable) 261 1.1.1.2.2.2 bouyer { 262 1.1.1.2.2.2 bouyer 263 1.1.1.2.2.2 bouyer if (!Subtable) 264 1.1.1.2.2.2 bouyer { 265 1.1.1.2.2.2 bouyer return (NULL); 266 1.1.1.2.2.2 bouyer } 267 1.1.1.2.2.2 bouyer 268 1.1.1.2.2.2 bouyer return (Subtable->Parent); 269 1.1.1.2.2.2 bouyer } 270 1.1.1.2.2.2 bouyer 271 1.1.1.2.2.2 bouyer 272 1.1.1.2.2.2 bouyer /****************************************************************************** 273 1.1.1.2.2.2 bouyer * 274 1.1.1.2.2.2 bouyer * FUNCTION: DtGetSubtableLength 275 1.1.1.2.2.2 bouyer * 276 1.1.1.2.2.2 bouyer * PARAMETERS: Field - Current field list pointer 277 1.1.1.2.2.2 bouyer * Info - Data table info 278 1.1.1.2.2.2 bouyer * 279 1.1.1.2.2.2 bouyer * RETURN: Subtable length 280 1.1.1.2.2.2 bouyer * 281 1.1.1.2.2.2 bouyer * DESCRIPTION: Get length of bytes needed to compile the subtable 282 1.1.1.2.2.2 bouyer * 283 1.1.1.2.2.2 bouyer *****************************************************************************/ 284 1.1.1.2.2.2 bouyer 285 1.1.1.2.2.2 bouyer UINT32 286 1.1.1.2.2.2 bouyer DtGetSubtableLength ( 287 1.1.1.2.2.2 bouyer DT_FIELD *Field, 288 1.1.1.2.2.2 bouyer ACPI_DMTABLE_INFO *Info) 289 1.1.1.2.2.2 bouyer { 290 1.1.1.2.2.2 bouyer UINT32 ByteLength = 0; 291 1.1.1.2.2.2 bouyer 292 1.1.1.2.2.2 bouyer 293 1.1.1.2.2.2 bouyer /* Walk entire Info table; Null name terminates */ 294 1.1.1.2.2.2 bouyer 295 1.1.1.2.2.2 bouyer for (; Info->Name; Info++) 296 1.1.1.2.2.2 bouyer { 297 1.1.1.2.2.2 bouyer ByteLength += DtGetFieldLength (Field, Info); 298 1.1.1.2.2.2 bouyer } 299 1.1.1.2.2.2 bouyer 300 1.1.1.2.2.2 bouyer return (ByteLength); 301 1.1.1.2.2.2 bouyer } 302 1.1.1.2.2.2 bouyer 303 1.1.1.2.2.2 bouyer 304 1.1.1.2.2.2 bouyer /****************************************************************************** 305 1.1.1.2.2.2 bouyer * 306 1.1.1.2.2.2 bouyer * FUNCTION: DtSetSubtableLength 307 1.1.1.2.2.2 bouyer * 308 1.1.1.2.2.2 bouyer * PARAMETERS: Subtable - Subtable 309 1.1.1.2.2.2 bouyer * 310 1.1.1.2.2.2 bouyer * RETURN: None 311 1.1.1.2.2.2 bouyer * 312 1.1.1.2.2.2 bouyer * DESCRIPTION: Set length of the subtable into its length field 313 1.1.1.2.2.2 bouyer * 314 1.1.1.2.2.2 bouyer *****************************************************************************/ 315 1.1.1.2.2.2 bouyer 316 1.1.1.2.2.2 bouyer void 317 1.1.1.2.2.2 bouyer DtSetSubtableLength ( 318 1.1.1.2.2.2 bouyer DT_SUBTABLE *Subtable) 319 1.1.1.2.2.2 bouyer { 320 1.1.1.2.2.2 bouyer 321 1.1.1.2.2.2 bouyer if (!Subtable->LengthField) 322 1.1.1.2.2.2 bouyer { 323 1.1.1.2.2.2 bouyer return; 324 1.1.1.2.2.2 bouyer } 325 1.1.1.2.2.2 bouyer 326 1.1.1.2.2.2 bouyer ACPI_MEMCPY (Subtable->LengthField, &Subtable->TotalLength, 327 1.1.1.2.2.2 bouyer Subtable->SizeOfLengthField); 328 1.1.1.2.2.2 bouyer } 329
Indexes created Thu Oct 02 01:09:59 GMT 2025