dmresrc.c revision 1.3.2.2
1 1.3.2.2 bouyer /******************************************************************************* 2 1.3.2.2 bouyer * 3 1.3.2.2 bouyer * Module Name: dmresrc.c - Resource Descriptor disassembly 4 1.3.2.2 bouyer * 5 1.3.2.2 bouyer ******************************************************************************/ 6 1.3.2.2 bouyer 7 1.3.2.2 bouyer /* 8 1.3.2.2 bouyer * Copyright (C) 2000 - 2011, Intel Corp. 9 1.3.2.2 bouyer * All rights reserved. 10 1.3.2.2 bouyer * 11 1.3.2.2 bouyer * Redistribution and use in source and binary forms, with or without 12 1.3.2.2 bouyer * modification, are permitted provided that the following conditions 13 1.3.2.2 bouyer * are met: 14 1.3.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 15 1.3.2.2 bouyer * notice, this list of conditions, and the following disclaimer, 16 1.3.2.2 bouyer * without modification. 17 1.3.2.2 bouyer * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 1.3.2.2 bouyer * substantially similar to the "NO WARRANTY" disclaimer below 19 1.3.2.2 bouyer * ("Disclaimer") and any redistribution must be conditioned upon 20 1.3.2.2 bouyer * including a substantially similar Disclaimer requirement for further 21 1.3.2.2 bouyer * binary redistribution. 22 1.3.2.2 bouyer * 3. Neither the names of the above-listed copyright holders nor the names 23 1.3.2.2 bouyer * of any contributors may be used to endorse or promote products derived 24 1.3.2.2 bouyer * from this software without specific prior written permission. 25 1.3.2.2 bouyer * 26 1.3.2.2 bouyer * Alternatively, this software may be distributed under the terms of the 27 1.3.2.2 bouyer * GNU General Public License ("GPL") version 2 as published by the Free 28 1.3.2.2 bouyer * Software Foundation. 29 1.3.2.2 bouyer * 30 1.3.2.2 bouyer * NO WARRANTY 31 1.3.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 1.3.2.2 bouyer * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 1.3.2.2 bouyer * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 1.3.2.2 bouyer * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 1.3.2.2 bouyer * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 1.3.2.2 bouyer * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 1.3.2.2 bouyer * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 1.3.2.2 bouyer * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 1.3.2.2 bouyer * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 1.3.2.2 bouyer * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 1.3.2.2 bouyer * POSSIBILITY OF SUCH DAMAGES. 42 1.3.2.2 bouyer */ 43 1.3.2.2 bouyer 44 1.3.2.2 bouyer 45 1.3.2.2 bouyer #include "acpi.h" 46 1.3.2.2 bouyer #include "accommon.h" 47 1.3.2.2 bouyer #include "amlcode.h" 48 1.3.2.2 bouyer #include "acdisasm.h" 49 1.3.2.2 bouyer 50 1.3.2.2 bouyer #ifdef ACPI_DISASSEMBLER 51 1.3.2.2 bouyer 52 1.3.2.2 bouyer #define _COMPONENT ACPI_CA_DEBUGGER 53 1.3.2.2 bouyer ACPI_MODULE_NAME ("dbresrc") 54 1.3.2.2 bouyer 55 1.3.2.2 bouyer 56 1.3.2.2 bouyer /* Dispatch tables for Resource disassembly functions */ 57 1.3.2.2 bouyer 58 1.3.2.2 bouyer typedef 59 1.3.2.2 bouyer void (*ACPI_RESOURCE_HANDLER) ( 60 1.3.2.2 bouyer AML_RESOURCE *Resource, 61 1.3.2.2 bouyer UINT32 Length, 62 1.3.2.2 bouyer UINT32 Level); 63 1.3.2.2 bouyer 64 1.3.2.2 bouyer static ACPI_RESOURCE_HANDLER AcpiGbl_DmResourceDispatch [] = 65 1.3.2.2 bouyer { 66 1.3.2.2 bouyer /* Small descriptors */ 67 1.3.2.2 bouyer 68 1.3.2.2 bouyer NULL, /* 0x00, Reserved */ 69 1.3.2.2 bouyer NULL, /* 0x01, Reserved */ 70 1.3.2.2 bouyer NULL, /* 0x02, Reserved */ 71 1.3.2.2 bouyer NULL, /* 0x03, Reserved */ 72 1.3.2.2 bouyer AcpiDmIrqDescriptor, /* 0x04, ACPI_RESOURCE_NAME_IRQ_FORMAT */ 73 1.3.2.2 bouyer AcpiDmDmaDescriptor, /* 0x05, ACPI_RESOURCE_NAME_DMA_FORMAT */ 74 1.3.2.2 bouyer AcpiDmStartDependentDescriptor, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */ 75 1.3.2.2 bouyer AcpiDmEndDependentDescriptor, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */ 76 1.3.2.2 bouyer AcpiDmIoDescriptor, /* 0x08, ACPI_RESOURCE_NAME_IO_PORT */ 77 1.3.2.2 bouyer AcpiDmFixedIoDescriptor, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO_PORT */ 78 1.3.2.2 bouyer NULL, /* 0x0A, Reserved */ 79 1.3.2.2 bouyer NULL, /* 0x0B, Reserved */ 80 1.3.2.2 bouyer NULL, /* 0x0C, Reserved */ 81 1.3.2.2 bouyer NULL, /* 0x0D, Reserved */ 82 1.3.2.2 bouyer AcpiDmVendorSmallDescriptor, /* 0x0E, ACPI_RESOURCE_NAME_SMALL_VENDOR */ 83 1.3.2.2 bouyer NULL, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG (not used) */ 84 1.3.2.2 bouyer 85 1.3.2.2 bouyer /* Large descriptors */ 86 1.3.2.2 bouyer 87 1.3.2.2 bouyer NULL, /* 0x00, Reserved */ 88 1.3.2.2 bouyer AcpiDmMemory24Descriptor, /* 0x01, ACPI_RESOURCE_NAME_MEMORY_24 */ 89 1.3.2.2 bouyer AcpiDmGenericRegisterDescriptor,/* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */ 90 1.3.2.2 bouyer NULL, /* 0x03, Reserved */ 91 1.3.2.2 bouyer AcpiDmVendorLargeDescriptor, /* 0x04, ACPI_RESOURCE_NAME_LARGE_VENDOR */ 92 1.3.2.2 bouyer AcpiDmMemory32Descriptor, /* 0x05, ACPI_RESOURCE_NAME_MEMORY_32 */ 93 1.3.2.2 bouyer AcpiDmFixedMemory32Descriptor, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY_32 */ 94 1.3.2.2 bouyer AcpiDmDwordDescriptor, /* 0x07, ACPI_RESOURCE_NAME_DWORD_ADDRESS_SPACE */ 95 1.3.2.2 bouyer AcpiDmWordDescriptor, /* 0x08, ACPI_RESOURCE_NAME_WORD_ADDRESS_SPACE */ 96 1.3.2.2 bouyer AcpiDmInterruptDescriptor, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_XRUPT */ 97 1.3.2.2 bouyer AcpiDmQwordDescriptor, /* 0x0A, ACPI_RESOURCE_NAME_QWORD_ADDRESS_SPACE */ 98 1.3.2.2 bouyer AcpiDmExtendedDescriptor /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS_SPACE */ 99 1.3.2.2 bouyer }; 100 1.3.2.2 bouyer 101 1.3.2.2 bouyer 102 1.3.2.2 bouyer /* Only used for single-threaded applications */ 103 1.3.2.2 bouyer /* TBD: remove when name is passed as parameter to the dump functions */ 104 1.3.2.2 bouyer 105 1.3.2.2 bouyer static UINT32 ResourceName; 106 1.3.2.2 bouyer 107 1.3.2.2 bouyer 108 1.3.2.2 bouyer /******************************************************************************* 109 1.3.2.2 bouyer * 110 1.3.2.2 bouyer * FUNCTION: AcpiDmDescriptorName 111 1.3.2.2 bouyer * 112 1.3.2.2 bouyer * PARAMETERS: None 113 1.3.2.2 bouyer * 114 1.3.2.2 bouyer * RETURN: None 115 1.3.2.2 bouyer * 116 1.3.2.2 bouyer * DESCRIPTION: Emit a name for the descriptor if one is present (indicated 117 1.3.2.2 bouyer * by the name being changed from the default name.) A name is only 118 1.3.2.2 bouyer * emitted if a reference to the descriptor has been made somewhere 119 1.3.2.2 bouyer * in the original ASL code. 120 1.3.2.2 bouyer * 121 1.3.2.2 bouyer ******************************************************************************/ 122 1.3.2.2 bouyer 123 1.3.2.2 bouyer void 124 1.3.2.2 bouyer AcpiDmDescriptorName ( 125 1.3.2.2 bouyer void) 126 1.3.2.2 bouyer { 127 1.3.2.2 bouyer 128 1.3.2.2 bouyer if (ResourceName == ACPI_DEFAULT_RESNAME) 129 1.3.2.2 bouyer { 130 1.3.2.2 bouyer return; 131 1.3.2.2 bouyer } 132 1.3.2.2 bouyer 133 1.3.2.2 bouyer AcpiOsPrintf ("%4.4s", (char *) &ResourceName); 134 1.3.2.2 bouyer } 135 1.3.2.2 bouyer 136 1.3.2.2 bouyer 137 1.3.2.2 bouyer /******************************************************************************* 138 1.3.2.2 bouyer * 139 1.3.2.2 bouyer * FUNCTION: AcpiDmDumpInteger* 140 1.3.2.2 bouyer * 141 1.3.2.2 bouyer * PARAMETERS: Value - Value to emit 142 1.3.2.2 bouyer * Name - Associated name (emitted as a comment) 143 1.3.2.2 bouyer * 144 1.3.2.2 bouyer * RETURN: None 145 1.3.2.2 bouyer * 146 1.3.2.2 bouyer * DESCRIPTION: Integer output helper functions 147 1.3.2.2 bouyer * 148 1.3.2.2 bouyer ******************************************************************************/ 149 1.3.2.2 bouyer 150 1.3.2.2 bouyer void 151 1.3.2.2 bouyer AcpiDmDumpInteger8 ( 152 1.3.2.2 bouyer UINT8 Value, 153 1.3.2.2 bouyer const char *Name) 154 1.3.2.2 bouyer { 155 1.3.2.2 bouyer AcpiOsPrintf ("0x%2.2X, // %s\n", Value, Name); 156 1.3.2.2 bouyer } 157 1.3.2.2 bouyer 158 1.3.2.2 bouyer void 159 1.3.2.2 bouyer AcpiDmDumpInteger16 ( 160 1.3.2.2 bouyer UINT16 Value, 161 1.3.2.2 bouyer const char *Name) 162 1.3.2.2 bouyer { 163 1.3.2.2 bouyer AcpiOsPrintf ("0x%4.4X, // %s\n", Value, Name); 164 1.3.2.2 bouyer } 165 1.3.2.2 bouyer 166 1.3.2.2 bouyer void 167 1.3.2.2 bouyer AcpiDmDumpInteger32 ( 168 1.3.2.2 bouyer UINT32 Value, 169 1.3.2.2 bouyer const char *Name) 170 1.3.2.2 bouyer { 171 1.3.2.2 bouyer AcpiOsPrintf ("0x%8.8X, // %s\n", Value, Name); 172 1.3.2.2 bouyer } 173 1.3.2.2 bouyer 174 1.3.2.2 bouyer void 175 1.3.2.2 bouyer AcpiDmDumpInteger64 ( 176 1.3.2.2 bouyer UINT64 Value, 177 1.3.2.2 bouyer const char *Name) 178 1.3.2.2 bouyer { 179 1.3.2.2 bouyer AcpiOsPrintf ("0x%8.8X%8.8X, // %s\n", ACPI_FORMAT_UINT64 (Value), Name); 180 1.3.2.2 bouyer } 181 1.3.2.2 bouyer 182 1.3.2.2 bouyer 183 1.3.2.2 bouyer /******************************************************************************* 184 1.3.2.2 bouyer * 185 1.3.2.2 bouyer * FUNCTION: AcpiDmBitList 186 1.3.2.2 bouyer * 187 1.3.2.2 bouyer * PARAMETERS: Mask - 16-bit value corresponding to 16 interrupt 188 1.3.2.2 bouyer * or DMA values 189 1.3.2.2 bouyer * 190 1.3.2.2 bouyer * RETURN: None 191 1.3.2.2 bouyer * 192 1.3.2.2 bouyer * DESCRIPTION: Dump a bit mask as a list of individual interrupt/DMA levels. 193 1.3.2.2 bouyer * 194 1.3.2.2 bouyer ******************************************************************************/ 195 1.3.2.2 bouyer 196 1.3.2.2 bouyer void 197 1.3.2.2 bouyer AcpiDmBitList ( 198 1.3.2.2 bouyer UINT16 Mask) 199 1.3.2.2 bouyer { 200 1.3.2.2 bouyer UINT32 i; 201 1.3.2.2 bouyer BOOLEAN Previous = FALSE; 202 1.3.2.2 bouyer 203 1.3.2.2 bouyer 204 1.3.2.2 bouyer /* Open the initializer list */ 205 1.3.2.2 bouyer 206 1.3.2.2 bouyer AcpiOsPrintf ("{"); 207 1.3.2.2 bouyer 208 1.3.2.2 bouyer /* Examine each bit */ 209 1.3.2.2 bouyer 210 1.3.2.2 bouyer for (i = 0; i < 16; i++) 211 1.3.2.2 bouyer { 212 1.3.2.2 bouyer /* Only interested in bits that are set to 1 */ 213 1.3.2.2 bouyer 214 1.3.2.2 bouyer if (Mask & 1) 215 1.3.2.2 bouyer { 216 1.3.2.2 bouyer if (Previous) 217 1.3.2.2 bouyer { 218 1.3.2.2 bouyer AcpiOsPrintf (","); 219 1.3.2.2 bouyer } 220 1.3.2.2 bouyer Previous = TRUE; 221 1.3.2.2 bouyer AcpiOsPrintf ("%u", i); 222 1.3.2.2 bouyer } 223 1.3.2.2 bouyer 224 1.3.2.2 bouyer Mask >>= 1; 225 1.3.2.2 bouyer } 226 1.3.2.2 bouyer 227 1.3.2.2 bouyer /* Close list */ 228 1.3.2.2 bouyer 229 1.3.2.2 bouyer AcpiOsPrintf ("}\n"); 230 1.3.2.2 bouyer } 231 1.3.2.2 bouyer 232 1.3.2.2 bouyer 233 1.3.2.2 bouyer /******************************************************************************* 234 1.3.2.2 bouyer * 235 1.3.2.2 bouyer * FUNCTION: AcpiDmResourceTemplate 236 1.3.2.2 bouyer * 237 1.3.2.2 bouyer * PARAMETERS: Info - Curent parse tree walk info 238 1.3.2.2 bouyer * ByteData - Pointer to the byte list data 239 1.3.2.2 bouyer * ByteCount - Length of the byte list 240 1.3.2.2 bouyer * 241 1.3.2.2 bouyer * RETURN: None 242 1.3.2.2 bouyer * 243 1.3.2.2 bouyer * DESCRIPTION: Dump the contents of a Resource Template containing a set of 244 1.3.2.2 bouyer * Resource Descriptors. 245 1.3.2.2 bouyer * 246 1.3.2.2 bouyer ******************************************************************************/ 247 1.3.2.2 bouyer 248 1.3.2.2 bouyer void 249 1.3.2.2 bouyer AcpiDmResourceTemplate ( 250 1.3.2.2 bouyer ACPI_OP_WALK_INFO *Info, 251 1.3.2.2 bouyer ACPI_PARSE_OBJECT *Op, 252 1.3.2.2 bouyer UINT8 *ByteData, 253 1.3.2.2 bouyer UINT32 ByteCount) 254 1.3.2.2 bouyer { 255 1.3.2.2 bouyer ACPI_STATUS Status; 256 1.3.2.2 bouyer UINT32 CurrentByteOffset; 257 1.3.2.2 bouyer UINT8 ResourceType; 258 1.3.2.2 bouyer UINT32 ResourceLength; 259 1.3.2.2 bouyer void *Aml; 260 1.3.2.2 bouyer UINT32 Level; 261 1.3.2.2 bouyer BOOLEAN DependentFns = FALSE; 262 1.3.2.2 bouyer UINT8 ResourceIndex; 263 1.3.2.2 bouyer ACPI_NAMESPACE_NODE *Node; 264 1.3.2.2 bouyer 265 1.3.2.2 bouyer 266 1.3.2.2 bouyer Level = Info->Level; 267 1.3.2.2 bouyer ResourceName = ACPI_DEFAULT_RESNAME; 268 1.3.2.2 bouyer Node = Op->Common.Node; 269 1.3.2.2 bouyer if (Node) 270 1.3.2.2 bouyer { 271 1.3.2.2 bouyer Node = Node->Child; 272 1.3.2.2 bouyer } 273 1.3.2.2 bouyer 274 1.3.2.2 bouyer for (CurrentByteOffset = 0; CurrentByteOffset < ByteCount;) 275 1.3.2.2 bouyer { 276 1.3.2.2 bouyer Aml = &ByteData[CurrentByteOffset]; 277 1.3.2.2 bouyer 278 1.3.2.2 bouyer /* Get the descriptor type and length */ 279 1.3.2.2 bouyer 280 1.3.2.2 bouyer ResourceType = AcpiUtGetResourceType (Aml); 281 1.3.2.2 bouyer ResourceLength = AcpiUtGetResourceLength (Aml); 282 1.3.2.2 bouyer 283 1.3.2.2 bouyer /* Validate the Resource Type and Resource Length */ 284 1.3.2.2 bouyer 285 1.3.2.2 bouyer Status = AcpiUtValidateResource (Aml, &ResourceIndex); 286 1.3.2.2 bouyer if (ACPI_FAILURE (Status)) 287 1.3.2.2 bouyer { 288 1.3.2.2 bouyer AcpiOsPrintf ("/*** Could not validate Resource, type (%X) %s***/\n", 289 1.3.2.2 bouyer ResourceType, AcpiFormatException (Status)); 290 1.3.2.2 bouyer return; 291 1.3.2.2 bouyer } 292 1.3.2.2 bouyer 293 1.3.2.2 bouyer /* Point to next descriptor */ 294 1.3.2.2 bouyer 295 1.3.2.2 bouyer CurrentByteOffset += AcpiUtGetDescriptorLength (Aml); 296 1.3.2.2 bouyer 297 1.3.2.2 bouyer /* Descriptor pre-processing */ 298 1.3.2.2 bouyer 299 1.3.2.2 bouyer switch (ResourceType) 300 1.3.2.2 bouyer { 301 1.3.2.2 bouyer case ACPI_RESOURCE_NAME_START_DEPENDENT: 302 1.3.2.2 bouyer 303 1.3.2.2 bouyer /* Finish a previous StartDependentFns */ 304 1.3.2.2 bouyer 305 1.3.2.2 bouyer if (DependentFns) 306 1.3.2.2 bouyer { 307 1.3.2.2 bouyer Level--; 308 1.3.2.2 bouyer AcpiDmIndent (Level); 309 1.3.2.2 bouyer AcpiOsPrintf ("}\n"); 310 1.3.2.2 bouyer } 311 1.3.2.2 bouyer break; 312 1.3.2.2 bouyer 313 1.3.2.2 bouyer case ACPI_RESOURCE_NAME_END_DEPENDENT: 314 1.3.2.2 bouyer 315 1.3.2.2 bouyer Level--; 316 1.3.2.2 bouyer DependentFns = FALSE; 317 1.3.2.2 bouyer break; 318 1.3.2.2 bouyer 319 1.3.2.2 bouyer case ACPI_RESOURCE_NAME_END_TAG: 320 1.3.2.2 bouyer 321 1.3.2.2 bouyer /* Normal exit, the resource list is finished */ 322 1.3.2.2 bouyer 323 1.3.2.2 bouyer if (DependentFns) 324 1.3.2.2 bouyer { 325 1.3.2.2 bouyer /* 326 1.3.2.2 bouyer * Close an open StartDependentDescriptor. This indicates a 327 1.3.2.2 bouyer * missing EndDependentDescriptor. 328 1.3.2.2 bouyer */ 329 1.3.2.2 bouyer Level--; 330 1.3.2.2 bouyer DependentFns = FALSE; 331 1.3.2.2 bouyer 332 1.3.2.2 bouyer /* Go ahead and insert EndDependentFn() */ 333 1.3.2.2 bouyer 334 1.3.2.2 bouyer AcpiDmEndDependentDescriptor (Aml, ResourceLength, Level); 335 1.3.2.2 bouyer 336 1.3.2.2 bouyer AcpiDmIndent (Level); 337 1.3.2.2 bouyer AcpiOsPrintf ( 338 1.3.2.2 bouyer "/*** Disassembler: inserted missing EndDependentFn () ***/\n"); 339 1.3.2.2 bouyer } 340 1.3.2.2 bouyer return; 341 1.3.2.2 bouyer 342 1.3.2.2 bouyer default: 343 1.3.2.2 bouyer break; 344 1.3.2.2 bouyer } 345 1.3.2.2 bouyer 346 1.3.2.2 bouyer /* Disassemble the resource structure */ 347 1.3.2.2 bouyer 348 1.3.2.2 bouyer if (Node) 349 1.3.2.2 bouyer { 350 1.3.2.2 bouyer ResourceName = Node->Name.Integer; 351 1.3.2.2 bouyer Node = Node->Peer; 352 1.3.2.2 bouyer } 353 1.3.2.2 bouyer 354 1.3.2.2 bouyer AcpiGbl_DmResourceDispatch [ResourceIndex] ( 355 1.3.2.2 bouyer Aml, ResourceLength, Level); 356 1.3.2.2 bouyer 357 1.3.2.2 bouyer /* Descriptor post-processing */ 358 1.3.2.2 bouyer 359 1.3.2.2 bouyer if (ResourceType == ACPI_RESOURCE_NAME_START_DEPENDENT) 360 1.3.2.2 bouyer { 361 1.3.2.2 bouyer DependentFns = TRUE; 362 1.3.2.2 bouyer Level++; 363 1.3.2.2 bouyer } 364 1.3.2.2 bouyer } 365 1.3.2.2 bouyer } 366 1.3.2.2 bouyer 367 1.3.2.2 bouyer 368 1.3.2.2 bouyer /******************************************************************************* 369 1.3.2.2 bouyer * 370 1.3.2.2 bouyer * FUNCTION: AcpiDmIsResourceTemplate 371 1.3.2.2 bouyer * 372 1.3.2.2 bouyer * PARAMETERS: Op - Buffer Op to be examined 373 1.3.2.2 bouyer * 374 1.3.2.2 bouyer * RETURN: Status. AE_OK if valid template 375 1.3.2.2 bouyer * 376 1.3.2.2 bouyer * DESCRIPTION: Walk a byte list to determine if it consists of a valid set 377 1.3.2.2 bouyer * of resource descriptors. Nothing is output. 378 1.3.2.2 bouyer * 379 1.3.2.2 bouyer ******************************************************************************/ 380 1.3.2.2 bouyer 381 1.3.2.2 bouyer ACPI_STATUS 382 1.3.2.2 bouyer AcpiDmIsResourceTemplate ( 383 1.3.2.2 bouyer ACPI_PARSE_OBJECT *Op) 384 1.3.2.2 bouyer { 385 1.3.2.2 bouyer ACPI_STATUS Status; 386 1.3.2.2 bouyer ACPI_PARSE_OBJECT *NextOp; 387 1.3.2.2 bouyer UINT8 *Aml; 388 1.3.2.2 bouyer UINT8 *EndAml; 389 1.3.2.2 bouyer ACPI_SIZE Length; 390 1.3.2.2 bouyer 391 1.3.2.2 bouyer 392 1.3.2.2 bouyer /* This op must be a buffer */ 393 1.3.2.2 bouyer 394 1.3.2.2 bouyer if (Op->Common.AmlOpcode != AML_BUFFER_OP) 395 1.3.2.2 bouyer { 396 1.3.2.2 bouyer return (AE_TYPE); 397 1.3.2.2 bouyer } 398 1.3.2.2 bouyer 399 1.3.2.2 bouyer /* Get the ByteData list and length */ 400 1.3.2.2 bouyer 401 1.3.2.2 bouyer NextOp = Op->Common.Value.Arg; 402 1.3.2.2 bouyer NextOp = NextOp->Common.Next; 403 1.3.2.2 bouyer if (!NextOp) 404 1.3.2.2 bouyer { 405 1.3.2.2 bouyer return (AE_TYPE); 406 1.3.2.2 bouyer } 407 1.3.2.2 bouyer 408 1.3.2.2 bouyer Aml = NextOp->Named.Data; 409 1.3.2.2 bouyer Length = (ACPI_SIZE) NextOp->Common.Value.Integer; 410 1.3.2.2 bouyer 411 1.3.2.2 bouyer /* Walk the byte list, abort on any invalid descriptor type or length */ 412 1.3.2.2 bouyer 413 1.3.2.2 bouyer Status = AcpiUtWalkAmlResources (Aml, Length, NULL, &EndAml); 414 1.3.2.2 bouyer if (ACPI_FAILURE (Status)) 415 1.3.2.2 bouyer { 416 1.3.2.2 bouyer return (AE_TYPE); 417 1.3.2.2 bouyer } 418 1.3.2.2 bouyer 419 1.3.2.2 bouyer /* 420 1.3.2.2 bouyer * For the resource template to be valid, one EndTag must appear 421 1.3.2.2 bouyer * at the very end of the ByteList, not before. (For proper disassembly 422 1.3.2.2 bouyer * of a ResourceTemplate, the buffer must not have any extra data after 423 1.3.2.2 bouyer * the EndTag.) 424 1.3.2.2 bouyer */ 425 1.3.2.2 bouyer if ((Aml + Length - sizeof (AML_RESOURCE_END_TAG)) != EndAml) 426 1.3.2.2 bouyer { 427 1.3.2.2 bouyer return (AE_AML_NO_RESOURCE_END_TAG); 428 1.3.2.2 bouyer } 429 1.3.2.2 bouyer 430 1.3.2.2 bouyer /* 431 1.3.2.2 bouyer * All resource descriptors are valid, therefore this list appears 432 1.3.2.2 bouyer * to be a valid resource template 433 1.3.2.2 bouyer */ 434 1.3.2.2 bouyer return (AE_OK); 435 1.3.2.2 bouyer } 436 1.3.2.2 bouyer 437 1.3.2.2 bouyer #endif 438
Indexes created Tue Sep 30 20:09:53 GMT 2025