projects / mirror_edk2.git / blame
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| 3a681567 PG |
1 | /** @file\r |
| 2 | AML Code Generation.\r | |
| 3 | \r | |
| 1e33479b | 4 | Copyright (c) 2020 - 2021, Arm Limited. All rights reserved.<BR>\r |
| 3a681567 PG |
5 | \r |
| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
| 7 | **/\r | |
| 8 | \r | |
| 9 | #include <AmlNodeDefines.h>\r | |
| 10 | \r | |
| 11 | #include <AcpiTableGenerator.h>\r | |
| 12 | \r | |
| 13 | #include <AmlCoreInterface.h>\r | |
| 14 | #include <AmlEncoding/Aml.h>\r | |
| a5e36ad9 | 15 | #include <Api/AmlApiHelper.h>\r |
| ce15936f | 16 | #include <CodeGen/AmlResourceDataCodeGen.h>\r |
| 3a681567 PG |
17 | #include <Tree/AmlNode.h>\r |
| 18 | #include <Tree/AmlTree.h>\r | |
| 19 | #include <String/AmlString.h>\r | |
| 20 | #include <Utils/AmlUtility.h>\r | |
| 21 | \r | |
| 22 | /** Utility function to link a node when returning from a CodeGen function.\r | |
| 23 | \r | |
| 24 | @param [in] Node Newly created node.\r | |
| 25 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 26 | of the node created.\r | |
| 2dd7dd39 PG |
27 | @param [out] NewObjectNode If not NULL:\r |
| 28 | - and Success, contains the created Node.\r | |
| 29 | - and Error, reset to NULL.\r | |
| 3a681567 PG |
30 | \r |
| 31 | @retval EFI_SUCCESS The function completed successfully.\r | |
| 32 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 33 | **/\r | |
| 34 | STATIC\r | |
| 35 | EFI_STATUS\r | |
| 36 | EFIAPI\r | |
| 37 | LinkNode (\r | |
| 38 | IN AML_OBJECT_NODE * Node,\r | |
| 39 | IN AML_NODE_HEADER * ParentNode,\r | |
| 5e0b708f | 40 | OUT AML_OBJECT_NODE ** NewObjectNode\r |
| 3a681567 PG |
41 | )\r |
| 42 | {\r | |
| 43 | EFI_STATUS Status;\r | |
| 44 | \r | |
| 45 | if (NewObjectNode != NULL) {\r | |
| 2dd7dd39 | 46 | *NewObjectNode = NULL;\r |
| 3a681567 PG |
47 | }\r |
| 48 | \r | |
| 49 | // Add RdNode as the last element.\r | |
| 50 | if (ParentNode != NULL) {\r | |
| 51 | Status = AmlVarListAddTail (ParentNode, (AML_NODE_HEADER*)Node);\r | |
| 52 | if (EFI_ERROR (Status)) {\r | |
| 53 | ASSERT (0);\r | |
| 54 | return Status;\r | |
| 55 | }\r | |
| 56 | }\r | |
| 57 | \r | |
| 2dd7dd39 PG |
58 | if (NewObjectNode != NULL) {\r |
| 59 | *NewObjectNode = Node;\r | |
| 60 | }\r | |
| 61 | \r | |
| 3a681567 PG |
62 | return EFI_SUCCESS;\r |
| 63 | }\r | |
| 64 | \r | |
| 65 | /** AML code generation for DefinitionBlock.\r | |
| 66 | \r | |
| 67 | Create a Root Node handle.\r | |
| 68 | It is the caller's responsibility to free the allocated memory\r | |
| 69 | with the AmlDeleteTree function.\r | |
| 70 | \r | |
| 71 | AmlCodeGenDefinitionBlock (TableSignature, OemID, TableID, OEMRevision) is\r | |
| 72 | equivalent to the following ASL code:\r | |
| 73 | DefinitionBlock (AMLFileName, TableSignature, ComplianceRevision,\r | |
| 74 | OemID, TableID, OEMRevision) {}\r | |
| 75 | with the ComplianceRevision set to 2 and the AMLFileName is ignored.\r | |
| 76 | \r | |
| 77 | @param[in] TableSignature 4-character ACPI signature.\r | |
| 78 | Must be 'DSDT' or 'SSDT'.\r | |
| 79 | @param[in] OemId 6-character string OEM identifier.\r | |
| 80 | @param[in] OemTableId 8-character string OEM table identifier.\r | |
| 81 | @param[in] OemRevision OEM revision number.\r | |
| 5e0b708f | 82 | @param[out] NewRootNode Pointer to the root node representing a\r |
| 3a681567 PG |
83 | Definition Block.\r |
| 84 | \r | |
| 85 | @retval EFI_SUCCESS Success.\r | |
| 86 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 87 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 88 | **/\r | |
| 89 | EFI_STATUS\r | |
| 90 | EFIAPI\r | |
| 91 | AmlCodeGenDefinitionBlock (\r | |
| 92 | IN CONST CHAR8 * TableSignature,\r | |
| 93 | IN CONST CHAR8 * OemId,\r | |
| 94 | IN CONST CHAR8 * OemTableId,\r | |
| 95 | IN UINT32 OemRevision,\r | |
| 96 | OUT AML_ROOT_NODE ** NewRootNode\r | |
| 97 | )\r | |
| 98 | {\r | |
| 99 | EFI_STATUS Status;\r | |
| 100 | EFI_ACPI_DESCRIPTION_HEADER AcpiHeader;\r | |
| 101 | \r | |
| 102 | if ((TableSignature == NULL) ||\r | |
| 103 | (OemId == NULL) ||\r | |
| 104 | (OemTableId == NULL) ||\r | |
| 105 | (NewRootNode == NULL)) {\r | |
| 106 | ASSERT (0);\r | |
| 107 | return EFI_INVALID_PARAMETER;\r | |
| 108 | }\r | |
| 109 | \r | |
| 110 | CopyMem (&AcpiHeader.Signature, TableSignature, 4);\r | |
| 111 | AcpiHeader.Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);\r | |
| 112 | AcpiHeader.Revision = 2;\r | |
| 113 | CopyMem (&AcpiHeader.OemId, OemId, 6);\r | |
| 114 | CopyMem (&AcpiHeader.OemTableId, OemTableId, 8);\r | |
| 115 | AcpiHeader.OemRevision = OemRevision;\r | |
| 116 | AcpiHeader.CreatorId = TABLE_GENERATOR_CREATOR_ID_ARM;\r | |
| 117 | AcpiHeader.CreatorRevision = CREATE_REVISION (1, 0);\r | |
| 118 | \r | |
| 119 | Status = AmlCreateRootNode (&AcpiHeader, NewRootNode);\r | |
| 120 | ASSERT_EFI_ERROR (Status);\r | |
| 121 | \r | |
| 122 | return Status;\r | |
| 123 | }\r | |
| 124 | \r | |
| 125 | /** AML code generation for a String object node.\r | |
| 126 | \r | |
| 127 | @param [in] String Pointer to a NULL terminated string.\r | |
| 128 | @param [out] NewObjectNode If success, contains the created\r | |
| 129 | String object node.\r | |
| 130 | \r | |
| 131 | @retval EFI_SUCCESS Success.\r | |
| 132 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 133 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 134 | **/\r | |
| 135 | STATIC\r | |
| 136 | EFI_STATUS\r | |
| 137 | EFIAPI\r | |
| 138 | AmlCodeGenString (\r | |
| 139 | IN CHAR8 * String,\r | |
| 140 | OUT AML_OBJECT_NODE ** NewObjectNode\r | |
| 141 | )\r | |
| 142 | {\r | |
| 143 | EFI_STATUS Status;\r | |
| 144 | AML_OBJECT_NODE * ObjectNode;\r | |
| 145 | AML_DATA_NODE * DataNode;\r | |
| 146 | \r | |
| 147 | if ((String == NULL) ||\r | |
| 148 | (NewObjectNode == NULL)) {\r | |
| 149 | ASSERT (0);\r | |
| 150 | return EFI_INVALID_PARAMETER;\r | |
| 151 | }\r | |
| 152 | \r | |
| 3a681567 PG |
153 | DataNode = NULL;\r |
| 154 | \r | |
| 155 | Status = AmlCreateObjectNode (\r | |
| 156 | AmlGetByteEncodingByOpCode (AML_STRING_PREFIX, 0),\r | |
| 157 | 0,\r | |
| 158 | &ObjectNode\r | |
| 159 | );\r | |
| 160 | if (EFI_ERROR (Status)) {\r | |
| 161 | ASSERT (0);\r | |
| 162 | return Status;\r | |
| 163 | }\r | |
| 164 | \r | |
| 165 | Status = AmlCreateDataNode (\r | |
| 166 | EAmlNodeDataTypeString,\r | |
| 167 | (UINT8*)String,\r | |
| 168 | (UINT32)AsciiStrLen (String) + 1,\r | |
| 169 | &DataNode\r | |
| 170 | );\r | |
| 171 | if (EFI_ERROR (Status)) {\r | |
| 172 | ASSERT (0);\r | |
| 173 | goto error_handler;\r | |
| 174 | }\r | |
| 175 | \r | |
| 176 | Status = AmlSetFixedArgument (\r | |
| 177 | ObjectNode,\r | |
| 178 | EAmlParseIndexTerm0,\r | |
| 179 | (AML_NODE_HEADER*)DataNode\r | |
| 180 | );\r | |
| 181 | if (EFI_ERROR (Status)) {\r | |
| 182 | ASSERT (0);\r | |
| 183 | AmlDeleteTree ((AML_NODE_HEADER*)DataNode);\r | |
| 184 | goto error_handler;\r | |
| 185 | }\r | |
| 186 | \r | |
| 187 | *NewObjectNode = ObjectNode;\r | |
| 188 | return Status;\r | |
| 189 | \r | |
| 190 | error_handler:\r | |
| 37bd0817 | 191 | AmlDeleteTree ((AML_NODE_HEADER*)ObjectNode);\r |
| 3a681567 PG |
192 | return Status;\r |
| 193 | }\r | |
| 194 | \r | |
| 195 | /** AML code generation for an Integer object node.\r | |
| 196 | \r | |
| 197 | @param [in] Integer Integer of the Integer object node.\r | |
| 198 | @param [out] NewObjectNode If success, contains the created\r | |
| 199 | Integer object node.\r | |
| 200 | \r | |
| 201 | @retval EFI_SUCCESS Success.\r | |
| 202 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 203 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 204 | **/\r | |
| 205 | STATIC\r | |
| 206 | EFI_STATUS\r | |
| 207 | EFIAPI\r | |
| 208 | AmlCodeGenInteger (\r | |
| 209 | IN UINT64 Integer,\r | |
| 210 | OUT AML_OBJECT_NODE ** NewObjectNode\r | |
| 211 | )\r | |
| 212 | {\r | |
| 213 | EFI_STATUS Status;\r | |
| 214 | INT8 ValueWidthDiff;\r | |
| 215 | \r | |
| 216 | if (NewObjectNode == NULL) {\r | |
| 217 | ASSERT (0);\r | |
| 218 | return EFI_INVALID_PARAMETER;\r | |
| 219 | }\r | |
| 220 | \r | |
| 221 | // Create an object node containing Zero.\r | |
| 222 | Status = AmlCreateObjectNode (\r | |
| 223 | AmlGetByteEncodingByOpCode (AML_ZERO_OP, 0),\r | |
| 224 | 0,\r | |
| 225 | NewObjectNode\r | |
| 226 | );\r | |
| 227 | if (EFI_ERROR (Status)) {\r | |
| 228 | ASSERT (0);\r | |
| 229 | return Status;\r | |
| 230 | }\r | |
| 231 | \r | |
| 232 | // Update the object node with integer value.\r | |
| 233 | Status = AmlNodeSetIntegerValue (*NewObjectNode, Integer, &ValueWidthDiff);\r | |
| 234 | if (EFI_ERROR (Status)) {\r | |
| 235 | ASSERT (0);\r | |
| 236 | AmlDeleteTree ((AML_NODE_HEADER*)*NewObjectNode);\r | |
| 237 | }\r | |
| 238 | \r | |
| 239 | return Status;\r | |
| 240 | }\r | |
| 241 | \r | |
| 1e33479b PG |
242 | /** AML code generation for a Package object node.\r |
| 243 | \r | |
| 244 | The package generated is empty. New elements can be added via its\r | |
| 245 | list of variable arguments.\r | |
| 246 | \r | |
| 247 | @param [out] NewObjectNode If success, contains the created\r | |
| 248 | Package object node.\r | |
| 249 | \r | |
| 250 | @retval EFI_SUCCESS Success.\r | |
| 251 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 252 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 253 | **/\r | |
| 254 | STATIC\r | |
| 255 | EFI_STATUS\r | |
| 256 | EFIAPI\r | |
| 257 | AmlCodeGenPackage (\r | |
| 258 | OUT AML_OBJECT_NODE ** NewObjectNode\r | |
| 259 | )\r | |
| 260 | {\r | |
| 261 | EFI_STATUS Status;\r | |
| 262 | AML_DATA_NODE * DataNode;\r | |
| 263 | UINT8 NodeCount;\r | |
| 264 | \r | |
| 265 | if (NewObjectNode == NULL) {\r | |
| 266 | ASSERT (0);\r | |
| 267 | return EFI_INVALID_PARAMETER;\r | |
| 268 | }\r | |
| 269 | \r | |
| 270 | NodeCount = 0;\r | |
| 271 | \r | |
| 272 | // Create an object node.\r | |
| 273 | // PkgLen is 2:\r | |
| 274 | // - one byte to store the PkgLength\r | |
| 275 | // - one byte for the NumElements.\r | |
| 276 | // Cf ACPI6.3, s20.2.5 "Term Objects Encoding"\r | |
| 277 | // DefPackage := PackageOp PkgLength NumElements PackageElementList\r | |
| 278 | // NumElements := ByteData\r | |
| 279 | Status = AmlCreateObjectNode (\r | |
| 280 | AmlGetByteEncodingByOpCode (AML_PACKAGE_OP, 0),\r | |
| 281 | 2,\r | |
| 282 | NewObjectNode\r | |
| 283 | );\r | |
| 284 | if (EFI_ERROR (Status)) {\r | |
| 285 | ASSERT (0);\r | |
| 286 | return Status;\r | |
| 287 | }\r | |
| 288 | \r | |
| 289 | // NumElements is a ByteData.\r | |
| 290 | Status = AmlCreateDataNode (\r | |
| 291 | EAmlNodeDataTypeUInt,\r | |
| 292 | &NodeCount,\r | |
| 293 | sizeof (NodeCount),\r | |
| 294 | &DataNode\r | |
| 295 | );\r | |
| 296 | if (EFI_ERROR (Status)) {\r | |
| 297 | ASSERT (0);\r | |
| 298 | goto error_handler;\r | |
| 299 | }\r | |
| 300 | \r | |
| 301 | Status = AmlSetFixedArgument (\r | |
| 302 | *NewObjectNode,\r | |
| 303 | EAmlParseIndexTerm0,\r | |
| 304 | (AML_NODE_HEADER*)DataNode\r | |
| 305 | );\r | |
| 306 | if (EFI_ERROR (Status)) {\r | |
| 307 | ASSERT (0);\r | |
| 308 | goto error_handler;\r | |
| 309 | }\r | |
| 310 | \r | |
| 311 | return Status;\r | |
| 312 | \r | |
| 313 | error_handler:\r | |
| 314 | AmlDeleteTree ((AML_NODE_HEADER*)*NewObjectNode);\r | |
| 315 | if (DataNode != NULL) {\r | |
| 316 | AmlDeleteTree ((AML_NODE_HEADER*)DataNode);\r | |
| 317 | }\r | |
| 318 | return Status;\r | |
| 319 | }\r | |
| 320 | \r | |
| ce15936f PG |
321 | /** AML code generation for a Buffer object node.\r |
| 322 | \r | |
| 323 | To create a Buffer object node with an empty buffer,\r | |
| 324 | call the function with (Buffer=NULL, BufferSize=0).\r | |
| 325 | \r | |
| 326 | @param [in] Buffer Buffer to set for the created Buffer\r | |
| 327 | object node. The Buffer's content is copied.\r | |
| 328 | NULL if there is no buffer to set for\r | |
| 329 | the Buffer node.\r | |
| 330 | @param [in] BufferSize Size of the Buffer.\r | |
| 331 | 0 if there is no buffer to set for\r | |
| 332 | the Buffer node.\r | |
| 333 | @param [out] NewObjectNode If success, contains the created\r | |
| 334 | Buffer object node.\r | |
| 335 | \r | |
| 336 | @retval EFI_SUCCESS Success.\r | |
| 337 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 338 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 339 | **/\r | |
| 340 | STATIC\r | |
| 341 | EFI_STATUS\r | |
| 342 | EFIAPI\r | |
| 343 | AmlCodeGenBuffer (\r | |
| fe2d8189 MK |
344 | IN CONST UINT8 * Buffer OPTIONAL,\r |
| 345 | IN UINT32 BufferSize OPTIONAL,\r | |
| ce15936f PG |
346 | OUT AML_OBJECT_NODE ** NewObjectNode\r |
| 347 | )\r | |
| 348 | {\r | |
| 349 | EFI_STATUS Status;\r | |
| 350 | AML_OBJECT_NODE * BufferNode;\r | |
| 351 | AML_OBJECT_NODE * BufferSizeNode;\r | |
| 352 | UINT32 BufferSizeNodeSize;\r | |
| 353 | AML_DATA_NODE * DataNode;\r | |
| 354 | UINT32 PkgLen;\r | |
| 355 | \r | |
| 356 | // Buffer and BufferSize must be either both set, or both clear.\r | |
| 357 | if ((NewObjectNode == NULL) ||\r | |
| 358 | ((Buffer == NULL) != (BufferSize == 0))) {\r | |
| 359 | ASSERT (0);\r | |
| 360 | return EFI_INVALID_PARAMETER;\r | |
| 361 | }\r | |
| 362 | \r | |
| 363 | BufferNode = NULL;\r | |
| 364 | DataNode = NULL;\r | |
| 365 | \r | |
| 366 | // Cf ACPI 6.3 specification, s20.2.5.4 "Type 2 Opcodes Encoding"\r | |
| 367 | // DefBuffer := BufferOp PkgLength BufferSize ByteList\r | |
| 368 | // BufferOp := 0x11\r | |
| 369 | // BufferSize := TermArg => Integer\r | |
| 370 | \r | |
| 371 | Status = AmlCodeGenInteger (BufferSize, &BufferSizeNode);\r | |
| 372 | if (EFI_ERROR (Status)) {\r | |
| 373 | ASSERT (0);\r | |
| 374 | return Status;\r | |
| 375 | }\r | |
| 376 | \r | |
| 377 | // Get the number of bytes required to encode the BufferSizeNode.\r | |
| 378 | Status = AmlComputeSize (\r | |
| 379 | (AML_NODE_HEADER*)BufferSizeNode,\r | |
| 380 | &BufferSizeNodeSize\r | |
| 381 | );\r | |
| 382 | if (EFI_ERROR (Status)) {\r | |
| 383 | ASSERT (0);\r | |
| 384 | goto error_handler;\r | |
| 385 | }\r | |
| 386 | \r | |
| 387 | // Compute the size to write in the PkgLen.\r | |
| 388 | Status = AmlComputePkgLength (BufferSizeNodeSize + BufferSize, &PkgLen);\r | |
| 389 | if (EFI_ERROR (Status)) {\r | |
| 390 | ASSERT (0);\r | |
| 391 | goto error_handler;\r | |
| 392 | }\r | |
| 393 | \r | |
| 394 | // Create an object node for the buffer.\r | |
| 395 | Status = AmlCreateObjectNode (\r | |
| 396 | AmlGetByteEncodingByOpCode (AML_BUFFER_OP, 0),\r | |
| 397 | PkgLen,\r | |
| 398 | &BufferNode\r | |
| 399 | );\r | |
| 400 | if (EFI_ERROR (Status)) {\r | |
| 401 | ASSERT (0);\r | |
| 402 | goto error_handler;\r | |
| 403 | }\r | |
| 404 | \r | |
| 405 | // Set the BufferSizeNode as a fixed argument of the BufferNode.\r | |
| 406 | Status = AmlSetFixedArgument (\r | |
| 407 | BufferNode,\r | |
| 408 | EAmlParseIndexTerm0,\r | |
| 409 | (AML_NODE_HEADER*)BufferSizeNode\r | |
| 410 | );\r | |
| 411 | if (EFI_ERROR (Status)) {\r | |
| 412 | ASSERT (0);\r | |
| 413 | goto error_handler;\r | |
| 414 | }\r | |
| 415 | \r | |
| 416 | // BufferSizeNode is now attached.\r | |
| 417 | BufferSizeNode = NULL;\r | |
| 418 | \r | |
| 419 | // If there is a buffer, create a DataNode and attach it to the BufferNode.\r | |
| 420 | if (Buffer != NULL) {\r | |
| 421 | Status = AmlCreateDataNode (\r | |
| 422 | EAmlNodeDataTypeRaw,\r | |
| 423 | Buffer,\r | |
| 424 | BufferSize,\r | |
| 425 | &DataNode\r | |
| 426 | );\r | |
| 427 | if (EFI_ERROR (Status)) {\r | |
| 428 | ASSERT (0);\r | |
| 429 | goto error_handler;\r | |
| 430 | }\r | |
| 431 | \r | |
| 432 | Status = AmlVarListAddTail (\r | |
| 433 | (AML_NODE_HEADER*)BufferNode,\r | |
| 434 | (AML_NODE_HEADER*)DataNode\r | |
| 435 | );\r | |
| 436 | if (EFI_ERROR (Status)) {\r | |
| 437 | ASSERT (0);\r | |
| 438 | goto error_handler;\r | |
| 439 | }\r | |
| 440 | }\r | |
| 441 | \r | |
| 442 | *NewObjectNode = BufferNode;\r | |
| 443 | return Status;\r | |
| 444 | \r | |
| 445 | error_handler:\r | |
| 446 | if (BufferSizeNode != NULL) {\r | |
| 447 | AmlDeleteTree ((AML_NODE_HEADER*)BufferSizeNode);\r | |
| 448 | }\r | |
| 449 | if (BufferNode != NULL) {\r | |
| 450 | AmlDeleteTree ((AML_NODE_HEADER*)BufferNode);\r | |
| 451 | }\r | |
| 452 | if (DataNode != NULL) {\r | |
| 453 | AmlDeleteTree ((AML_NODE_HEADER*)DataNode);\r | |
| 454 | }\r | |
| 455 | return Status;\r | |
| 456 | }\r | |
| 457 | \r | |
| 458 | /** AML code generation for a ResourceTemplate.\r | |
| 459 | \r | |
| 460 | "ResourceTemplate" is a macro defined in ACPI 6.3, s19.3.3\r | |
| 461 | "ASL Resource Templates". It allows to store resource data elements.\r | |
| 462 | \r | |
| 463 | In AML, a ResourceTemplate is implemented as a Buffer storing resource\r | |
| 464 | data elements. An EndTag resource data descriptor must be at the end\r | |
| 465 | of the list of resource data elements.\r | |
| 466 | This function generates a Buffer node with an EndTag resource data\r | |
| 467 | descriptor. It can be seen as an empty list of resource data elements.\r | |
| 468 | \r | |
| 469 | @param [out] NewObjectNode If success, contains the created\r | |
| 470 | ResourceTemplate object node.\r | |
| 471 | \r | |
| 472 | @retval EFI_SUCCESS Success.\r | |
| 473 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 474 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 475 | **/\r | |
| 476 | STATIC\r | |
| 477 | EFI_STATUS\r | |
| 478 | EFIAPI\r | |
| 479 | AmlCodeGenResourceTemplate (\r | |
| 480 | OUT AML_OBJECT_NODE ** NewObjectNode\r | |
| 481 | )\r | |
| 482 | {\r | |
| 483 | EFI_STATUS Status;\r | |
| 484 | AML_OBJECT_NODE * BufferNode;\r | |
| 485 | \r | |
| 486 | if (NewObjectNode == NULL) {\r | |
| 487 | ASSERT (0);\r | |
| 488 | return EFI_INVALID_PARAMETER;\r | |
| 489 | }\r | |
| 490 | \r | |
| 491 | // Create a BufferNode with an empty buffer.\r | |
| 492 | Status = AmlCodeGenBuffer (NULL, 0, &BufferNode);\r | |
| 493 | if (EFI_ERROR (Status)) {\r | |
| 494 | ASSERT (0);\r | |
| 495 | return Status;\r | |
| 496 | }\r | |
| 497 | \r | |
| 498 | // Create an EndTag resource data element and attach it to the Buffer.\r | |
| 499 | Status = AmlCodeGenEndTag (0, BufferNode, NULL);\r | |
| 500 | if (EFI_ERROR (Status)) {\r | |
| 501 | ASSERT (0);\r | |
| 502 | AmlDeleteTree ((AML_NODE_HEADER*)BufferNode);\r | |
| 503 | return Status;\r | |
| 504 | }\r | |
| 505 | \r | |
| 506 | *NewObjectNode = BufferNode;\r | |
| 507 | return Status;\r | |
| 508 | }\r | |
| 509 | \r | |
| 3a681567 PG |
510 | /** AML code generation for a Name object node.\r |
| 511 | \r | |
| 512 | @param [in] NameString The new variable name.\r | |
| 513 | Must be a NULL-terminated ASL NameString\r | |
| 514 | e.g.: "DEV0", "DV15.DEV0", etc.\r | |
| 515 | This input string is copied.\r | |
| 516 | @param [in] Object Object associated to the NameString.\r | |
| 517 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 518 | of the node created.\r | |
| 519 | @param [out] NewObjectNode If success, contains the created node.\r | |
| 520 | \r | |
| 521 | @retval EFI_SUCCESS Success.\r | |
| 522 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 523 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 524 | **/\r | |
| 525 | STATIC\r | |
| 526 | EFI_STATUS\r | |
| 527 | EFIAPI\r | |
| 528 | AmlCodeGenName (\r | |
| 529 | IN CONST CHAR8 * NameString,\r | |
| 530 | IN AML_OBJECT_NODE * Object,\r | |
| fe2d8189 | 531 | IN AML_NODE_HEADER * ParentNode OPTIONAL,\r |
| 3a681567 PG |
532 | OUT AML_OBJECT_NODE ** NewObjectNode OPTIONAL\r |
| 533 | )\r | |
| 534 | {\r | |
| 535 | EFI_STATUS Status;\r | |
| 536 | AML_OBJECT_NODE * ObjectNode;\r | |
| 537 | AML_DATA_NODE * DataNode;\r | |
| 538 | CHAR8 * AmlNameString;\r | |
| 539 | UINT32 AmlNameStringSize;\r | |
| 540 | \r | |
| 541 | if ((NameString == NULL) ||\r | |
| 542 | (Object == NULL) ||\r | |
| 543 | ((ParentNode == NULL) && (NewObjectNode == NULL))) {\r | |
| 544 | ASSERT (0);\r | |
| 545 | return EFI_INVALID_PARAMETER;\r | |
| 546 | }\r | |
| 547 | \r | |
| 548 | ObjectNode = NULL;\r | |
| 549 | DataNode = NULL;\r | |
| 550 | AmlNameString = NULL;\r | |
| 551 | \r | |
| 552 | Status = ConvertAslNameToAmlName (NameString, &AmlNameString);\r | |
| 553 | if (EFI_ERROR (Status)) {\r | |
| 554 | ASSERT (0);\r | |
| 555 | return Status;\r | |
| 556 | }\r | |
| 557 | \r | |
| 558 | Status = AmlGetNameStringSize (AmlNameString, &AmlNameStringSize);\r | |
| 559 | if (EFI_ERROR (Status)) {\r | |
| 560 | ASSERT (0);\r | |
| 561 | goto error_handler1;\r | |
| 562 | }\r | |
| 563 | \r | |
| 564 | Status = AmlCreateObjectNode (\r | |
| 565 | AmlGetByteEncodingByOpCode (AML_NAME_OP, 0),\r | |
| 566 | 0,\r | |
| 567 | &ObjectNode\r | |
| 568 | );\r | |
| 569 | if (EFI_ERROR (Status)) {\r | |
| 570 | ASSERT (0);\r | |
| 571 | goto error_handler1;\r | |
| 572 | }\r | |
| 573 | \r | |
| 574 | Status = AmlCreateDataNode (\r | |
| 575 | EAmlNodeDataTypeNameString,\r | |
| 576 | (UINT8*)AmlNameString,\r | |
| 577 | AmlNameStringSize,\r | |
| 578 | &DataNode\r | |
| 579 | );\r | |
| 580 | if (EFI_ERROR (Status)) {\r | |
| 581 | ASSERT (0);\r | |
| 582 | goto error_handler2;\r | |
| 583 | }\r | |
| 584 | \r | |
| 585 | Status = AmlSetFixedArgument (\r | |
| 586 | ObjectNode,\r | |
| 587 | EAmlParseIndexTerm0,\r | |
| 588 | (AML_NODE_HEADER*)DataNode\r | |
| 589 | );\r | |
| 590 | if (EFI_ERROR (Status)) {\r | |
| 591 | ASSERT (0);\r | |
| 592 | AmlDeleteTree ((AML_NODE_HEADER*)DataNode);\r | |
| 593 | goto error_handler2;\r | |
| 594 | }\r | |
| 595 | \r | |
| 596 | Status = AmlSetFixedArgument (\r | |
| 597 | ObjectNode,\r | |
| 598 | EAmlParseIndexTerm1,\r | |
| 599 | (AML_NODE_HEADER*)Object\r | |
| 600 | );\r | |
| 601 | if (EFI_ERROR (Status)) {\r | |
| 602 | ASSERT (0);\r | |
| 603 | goto error_handler2;\r | |
| 604 | }\r | |
| 605 | \r | |
| 606 | Status = LinkNode (\r | |
| 607 | ObjectNode,\r | |
| 608 | ParentNode,\r | |
| 609 | NewObjectNode\r | |
| 610 | );\r | |
| 611 | if (EFI_ERROR (Status)) {\r | |
| 612 | ASSERT (0);\r | |
| 613 | goto error_handler2;\r | |
| 614 | }\r | |
| 615 | \r | |
| 616 | // Free AmlNameString before returning as it is copied\r | |
| 617 | // in the call to AmlCreateDataNode().\r | |
| 618 | goto error_handler1;\r | |
| 619 | \r | |
| 620 | error_handler2:\r | |
| 621 | if (ObjectNode != NULL) {\r | |
| 622 | AmlDeleteTree ((AML_NODE_HEADER*)ObjectNode);\r | |
| 623 | }\r | |
| 624 | \r | |
| 625 | error_handler1:\r | |
| 626 | if (AmlNameString != NULL) {\r | |
| 627 | FreePool (AmlNameString);\r | |
| 628 | }\r | |
| 629 | \r | |
| 630 | return Status;\r | |
| 631 | }\r | |
| 632 | \r | |
| 633 | /** AML code generation for a Name object node, containing a String.\r | |
| 634 | \r | |
| 635 | AmlCodeGenNameString ("_HID", "HID0000", ParentNode, NewObjectNode) is\r | |
| 636 | equivalent of the following ASL code:\r | |
| 637 | Name(_HID, "HID0000")\r | |
| 638 | \r | |
| 639 | @param [in] NameString The new variable name.\r | |
| 640 | Must be a NULL-terminated ASL NameString\r | |
| 641 | e.g.: "DEV0", "DV15.DEV0", etc.\r | |
| 642 | The input string is copied.\r | |
| 643 | @param [in] String NULL terminated String to associate to the\r | |
| 644 | NameString.\r | |
| 645 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 646 | of the node created.\r | |
| 647 | @param [out] NewObjectNode If success, contains the created node.\r | |
| 648 | \r | |
| 649 | @retval EFI_SUCCESS Success.\r | |
| 650 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 651 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 652 | **/\r | |
| 653 | EFI_STATUS\r | |
| 654 | EFIAPI\r | |
| 655 | AmlCodeGenNameString (\r | |
| 656 | IN CONST CHAR8 * NameString,\r | |
| 657 | IN CHAR8 * String,\r | |
| fe2d8189 | 658 | IN AML_NODE_HEADER * ParentNode OPTIONAL,\r |
| 3a681567 PG |
659 | OUT AML_OBJECT_NODE ** NewObjectNode OPTIONAL\r |
| 660 | )\r | |
| 661 | {\r | |
| 662 | EFI_STATUS Status;\r | |
| 663 | AML_OBJECT_NODE * ObjectNode;\r | |
| 664 | \r | |
| 665 | if ((NameString == NULL) ||\r | |
| 666 | (String == NULL) ||\r | |
| 667 | ((ParentNode == NULL) && (NewObjectNode == NULL))) {\r | |
| 668 | ASSERT (0);\r | |
| 669 | return EFI_INVALID_PARAMETER;\r | |
| 670 | }\r | |
| 671 | \r | |
| 672 | Status = AmlCodeGenString (String, &ObjectNode);\r | |
| 673 | if (EFI_ERROR (Status)) {\r | |
| 674 | ASSERT (0);\r | |
| 675 | return Status;\r | |
| 676 | }\r | |
| 677 | \r | |
| 678 | Status = AmlCodeGenName (\r | |
| 679 | NameString,\r | |
| 680 | ObjectNode,\r | |
| 681 | ParentNode,\r | |
| 682 | NewObjectNode\r | |
| 683 | );\r | |
| 684 | if (EFI_ERROR (Status)) {\r | |
| 685 | ASSERT (0);\r | |
| 686 | AmlDeleteTree ((AML_NODE_HEADER*)ObjectNode);\r | |
| 687 | }\r | |
| 688 | \r | |
| 689 | return Status;\r | |
| 690 | }\r | |
| 691 | \r | |
| 692 | /** AML code generation for a Name object node, containing an Integer.\r | |
| 693 | \r | |
| 694 | AmlCodeGenNameInteger ("_UID", 1, ParentNode, NewObjectNode) is\r | |
| 695 | equivalent of the following ASL code:\r | |
| 696 | Name(_UID, One)\r | |
| 697 | \r | |
| 698 | @param [in] NameString The new variable name.\r | |
| 699 | Must be a NULL-terminated ASL NameString\r | |
| 700 | e.g.: "DEV0", "DV15.DEV0", etc.\r | |
| 701 | The input string is copied.\r | |
| 702 | @param [in] Integer Integer to associate to the NameString.\r | |
| 703 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 704 | of the node created.\r | |
| 705 | @param [out] NewObjectNode If success, contains the created node.\r | |
| 706 | \r | |
| 707 | @retval EFI_SUCCESS Success.\r | |
| 708 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 709 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 710 | **/\r | |
| 711 | EFI_STATUS\r | |
| 712 | EFIAPI\r | |
| 713 | AmlCodeGenNameInteger (\r | |
| 714 | IN CONST CHAR8 * NameString,\r | |
| 715 | IN UINT64 Integer,\r | |
| fe2d8189 | 716 | IN AML_NODE_HEADER * ParentNode OPTIONAL,\r |
| 3a681567 PG |
717 | OUT AML_OBJECT_NODE ** NewObjectNode OPTIONAL\r |
| 718 | )\r | |
| 719 | {\r | |
| 720 | EFI_STATUS Status;\r | |
| 721 | AML_OBJECT_NODE * ObjectNode;\r | |
| 722 | \r | |
| 723 | if ((NameString == NULL) ||\r | |
| 724 | ((ParentNode == NULL) && (NewObjectNode == NULL))) {\r | |
| 725 | ASSERT (0);\r | |
| 726 | return EFI_INVALID_PARAMETER;\r | |
| 727 | }\r | |
| 728 | \r | |
| 729 | Status = AmlCodeGenInteger (Integer, &ObjectNode);\r | |
| 730 | if (EFI_ERROR (Status)) {\r | |
| 731 | ASSERT (0);\r | |
| 732 | return Status;\r | |
| 733 | }\r | |
| 734 | \r | |
| 735 | Status = AmlCodeGenName (\r | |
| 736 | NameString,\r | |
| 737 | ObjectNode,\r | |
| 738 | ParentNode,\r | |
| 739 | NewObjectNode\r | |
| 740 | );\r | |
| 741 | if (EFI_ERROR (Status)) {\r | |
| 742 | ASSERT (0);\r | |
| 743 | AmlDeleteTree ((AML_NODE_HEADER*)ObjectNode);\r | |
| 744 | }\r | |
| 745 | \r | |
| 746 | return Status;\r | |
| 747 | }\r | |
| 748 | \r | |
| 749 | /** AML code generation for a Device object node.\r | |
| 750 | \r | |
| 751 | AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is\r | |
| 752 | equivalent of the following ASL code:\r | |
| 753 | Device(COM0) {}\r | |
| 754 | \r | |
| 755 | @param [in] NameString The new Device's name.\r | |
| 756 | Must be a NULL-terminated ASL NameString\r | |
| 757 | e.g.: "DEV0", "DV15.DEV0", etc.\r | |
| 758 | The input string is copied.\r | |
| 759 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 760 | of the node created.\r | |
| 761 | @param [out] NewObjectNode If success, contains the created node.\r | |
| 762 | \r | |
| 763 | @retval EFI_SUCCESS Success.\r | |
| 764 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 765 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 766 | **/\r | |
| 767 | EFI_STATUS\r | |
| 768 | EFIAPI\r | |
| 769 | AmlCodeGenDevice (\r | |
| 770 | IN CONST CHAR8 * NameString,\r | |
| fe2d8189 | 771 | IN AML_NODE_HEADER * ParentNode OPTIONAL,\r |
| 3a681567 PG |
772 | OUT AML_OBJECT_NODE ** NewObjectNode OPTIONAL\r |
| 773 | )\r | |
| 774 | {\r | |
| 775 | EFI_STATUS Status;\r | |
| 776 | AML_OBJECT_NODE * ObjectNode;\r | |
| 777 | AML_DATA_NODE * DataNode;\r | |
| 778 | CHAR8 * AmlNameString;\r | |
| 779 | UINT32 AmlNameStringSize;\r | |
| 780 | \r | |
| 781 | if ((NameString == NULL) ||\r | |
| 782 | ((ParentNode == NULL) && (NewObjectNode == NULL))) {\r | |
| 783 | ASSERT (0);\r | |
| 784 | return EFI_INVALID_PARAMETER;\r | |
| 785 | }\r | |
| 786 | \r | |
| 787 | ObjectNode = NULL;\r | |
| 788 | DataNode = NULL;\r | |
| 789 | AmlNameString = NULL;\r | |
| 790 | \r | |
| 791 | Status = ConvertAslNameToAmlName (NameString, &AmlNameString);\r | |
| 792 | if (EFI_ERROR (Status)) {\r | |
| 793 | ASSERT (0);\r | |
| 794 | return Status;\r | |
| 795 | }\r | |
| 796 | \r | |
| 797 | Status = AmlGetNameStringSize (AmlNameString, &AmlNameStringSize);\r | |
| 798 | if (EFI_ERROR (Status)) {\r | |
| 799 | ASSERT (0);\r | |
| 800 | goto error_handler1;\r | |
| 801 | }\r | |
| 802 | \r | |
| 803 | Status = AmlCreateObjectNode (\r | |
| 804 | AmlGetByteEncodingByOpCode (AML_EXT_OP, AML_EXT_DEVICE_OP),\r | |
| 805 | AmlNameStringSize + AmlComputePkgLengthWidth (AmlNameStringSize),\r | |
| 806 | &ObjectNode\r | |
| 807 | );\r | |
| 808 | if (EFI_ERROR (Status)) {\r | |
| 809 | ASSERT (0);\r | |
| 810 | goto error_handler1;\r | |
| 811 | }\r | |
| 812 | \r | |
| 813 | Status = AmlCreateDataNode (\r | |
| 814 | EAmlNodeDataTypeNameString,\r | |
| 815 | (UINT8*)AmlNameString,\r | |
| 816 | AmlNameStringSize,\r | |
| 817 | &DataNode\r | |
| 818 | );\r | |
| 819 | if (EFI_ERROR (Status)) {\r | |
| 820 | ASSERT (0);\r | |
| 821 | goto error_handler2;\r | |
| 822 | }\r | |
| 823 | \r | |
| 824 | Status = AmlSetFixedArgument (\r | |
| 825 | ObjectNode,\r | |
| 826 | EAmlParseIndexTerm0,\r | |
| 827 | (AML_NODE_HEADER*)DataNode\r | |
| 828 | );\r | |
| 829 | if (EFI_ERROR (Status)) {\r | |
| 830 | ASSERT (0);\r | |
| 831 | AmlDeleteTree ((AML_NODE_HEADER*)DataNode);\r | |
| 832 | goto error_handler2;\r | |
| 833 | }\r | |
| 834 | \r | |
| 835 | Status = LinkNode (\r | |
| 836 | ObjectNode,\r | |
| 837 | ParentNode,\r | |
| 838 | NewObjectNode\r | |
| 839 | );\r | |
| 840 | if (EFI_ERROR (Status)) {\r | |
| 841 | ASSERT (0);\r | |
| 842 | goto error_handler2;\r | |
| 843 | }\r | |
| 844 | \r | |
| 845 | // Free AmlNameString before returning as it is copied\r | |
| 846 | // in the call to AmlCreateDataNode().\r | |
| 847 | goto error_handler1;\r | |
| 848 | \r | |
| 849 | error_handler2:\r | |
| 850 | if (ObjectNode != NULL) {\r | |
| 851 | AmlDeleteTree ((AML_NODE_HEADER*)ObjectNode);\r | |
| 852 | }\r | |
| 853 | \r | |
| 854 | error_handler1:\r | |
| 855 | if (AmlNameString != NULL) {\r | |
| 856 | FreePool (AmlNameString);\r | |
| 857 | }\r | |
| 858 | \r | |
| 859 | return Status;\r | |
| 860 | }\r | |
| 861 | \r | |
| 862 | /** AML code generation for a Scope object node.\r | |
| 863 | \r | |
| 864 | AmlCodeGenScope ("_SB", ParentNode, NewObjectNode) is\r | |
| 865 | equivalent of the following ASL code:\r | |
| 866 | Scope(_SB) {}\r | |
| 867 | \r | |
| 868 | @param [in] NameString The new Scope's name.\r | |
| 869 | Must be a NULL-terminated ASL NameString\r | |
| 870 | e.g.: "DEV0", "DV15.DEV0", etc.\r | |
| 871 | The input string is copied.\r | |
| 872 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 873 | of the node created.\r | |
| 874 | @param [out] NewObjectNode If success, contains the created node.\r | |
| 875 | \r | |
| 876 | @retval EFI_SUCCESS Success.\r | |
| 877 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 878 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 879 | **/\r | |
| 880 | EFI_STATUS\r | |
| 881 | EFIAPI\r | |
| 882 | AmlCodeGenScope (\r | |
| 883 | IN CONST CHAR8 * NameString,\r | |
| fe2d8189 | 884 | IN AML_NODE_HEADER * ParentNode OPTIONAL,\r |
| 3a681567 PG |
885 | OUT AML_OBJECT_NODE ** NewObjectNode OPTIONAL\r |
| 886 | )\r | |
| 887 | {\r | |
| 888 | EFI_STATUS Status;\r | |
| 889 | AML_OBJECT_NODE * ObjectNode;\r | |
| 890 | AML_DATA_NODE * DataNode;\r | |
| 891 | CHAR8 * AmlNameString;\r | |
| 892 | UINT32 AmlNameStringSize;\r | |
| 893 | \r | |
| 894 | if ((NameString == NULL) ||\r | |
| 895 | ((ParentNode == NULL) && (NewObjectNode == NULL))) {\r | |
| 896 | ASSERT (0);\r | |
| 897 | return EFI_INVALID_PARAMETER;\r | |
| 898 | }\r | |
| 899 | \r | |
| 900 | ObjectNode = NULL;\r | |
| 901 | DataNode = NULL;\r | |
| 902 | AmlNameString = NULL;\r | |
| 903 | \r | |
| 904 | Status = ConvertAslNameToAmlName (NameString, &AmlNameString);\r | |
| 905 | if (EFI_ERROR (Status)) {\r | |
| 906 | ASSERT (0);\r | |
| 907 | return Status;\r | |
| 908 | }\r | |
| 909 | \r | |
| 910 | Status = AmlGetNameStringSize (AmlNameString, &AmlNameStringSize);\r | |
| 911 | if (EFI_ERROR (Status)) {\r | |
| 912 | ASSERT (0);\r | |
| 913 | goto error_handler1;\r | |
| 914 | }\r | |
| 915 | \r | |
| 916 | Status = AmlCreateObjectNode (\r | |
| 917 | AmlGetByteEncodingByOpCode (AML_SCOPE_OP, 0),\r | |
| 918 | AmlNameStringSize + AmlComputePkgLengthWidth (AmlNameStringSize),\r | |
| 919 | &ObjectNode\r | |
| 920 | );\r | |
| 921 | if (EFI_ERROR (Status)) {\r | |
| 922 | ASSERT (0);\r | |
| 923 | goto error_handler1;\r | |
| 924 | }\r | |
| 925 | \r | |
| 926 | Status = AmlCreateDataNode (\r | |
| 927 | EAmlNodeDataTypeNameString,\r | |
| 928 | (UINT8*)AmlNameString,\r | |
| 929 | AmlNameStringSize,\r | |
| 930 | &DataNode\r | |
| 931 | );\r | |
| 932 | if (EFI_ERROR (Status)) {\r | |
| 933 | ASSERT (0);\r | |
| 934 | goto error_handler2;\r | |
| 935 | }\r | |
| 936 | \r | |
| 937 | Status = AmlSetFixedArgument (\r | |
| 938 | ObjectNode,\r | |
| 939 | EAmlParseIndexTerm0,\r | |
| 940 | (AML_NODE_HEADER*)DataNode\r | |
| 941 | );\r | |
| 942 | if (EFI_ERROR (Status)) {\r | |
| 943 | ASSERT (0);\r | |
| 944 | AmlDeleteTree ((AML_NODE_HEADER*)DataNode);\r | |
| 945 | goto error_handler2;\r | |
| 946 | }\r | |
| 947 | \r | |
| 948 | Status = LinkNode (\r | |
| 949 | ObjectNode,\r | |
| 950 | ParentNode,\r | |
| 951 | NewObjectNode\r | |
| 952 | );\r | |
| 953 | if (EFI_ERROR (Status)) {\r | |
| 954 | ASSERT (0);\r | |
| 955 | goto error_handler2;\r | |
| 956 | }\r | |
| 957 | \r | |
| 958 | // Free AmlNameString before returning as it is copied\r | |
| 959 | // in the call to AmlCreateDataNode().\r | |
| 960 | goto error_handler1;\r | |
| 961 | \r | |
| 962 | error_handler2:\r | |
| 963 | if (ObjectNode != NULL) {\r | |
| 964 | AmlDeleteTree ((AML_NODE_HEADER*)ObjectNode);\r | |
| 965 | }\r | |
| 966 | \r | |
| 967 | error_handler1:\r | |
| 968 | if (AmlNameString != NULL) {\r | |
| 969 | FreePool (AmlNameString);\r | |
| 970 | }\r | |
| 971 | \r | |
| 972 | return Status;\r | |
| 973 | }\r | |
| de62ccbf PG |
974 | \r |
| 975 | /** AML code generation for a Method object node.\r | |
| 976 | \r | |
| 977 | AmlCodeGenMethod ("MET0", 1, TRUE, 3, ParentNode, NewObjectNode) is\r | |
| 978 | equivalent of the following ASL code:\r | |
| 979 | Method(MET0, 1, Serialized, 3) {}\r | |
| 980 | \r | |
| 981 | ACPI 6.4, s20.2.5.2 "Named Objects Encoding":\r | |
| 982 | DefMethod := MethodOp PkgLength NameString MethodFlags TermList\r | |
| 983 | MethodOp := 0x14\r | |
| 984 | \r | |
| 985 | The ASL parameters "ReturnType" and "ParameterTypes" are not asked\r | |
| 986 | in this function. They are optional parameters in ASL.\r | |
| 987 | \r | |
| 988 | @param [in] NameString The new Method's name.\r | |
| 989 | Must be a NULL-terminated ASL NameString\r | |
| 990 | e.g.: "MET0", "_SB.MET0", etc.\r | |
| 991 | The input string is copied.\r | |
| 992 | @param [in] NumArgs Number of arguments.\r | |
| 993 | Must be 0 <= NumArgs <= 6.\r | |
| 994 | @param [in] IsSerialized TRUE is equivalent to Serialized.\r | |
| 995 | FALSE is equivalent to NotSerialized.\r | |
| 996 | Default is NotSerialized in ASL spec.\r | |
| 997 | @param [in] SyncLevel Synchronization level for the method.\r | |
| 998 | Must be 0 <= SyncLevel <= 15.\r | |
| 999 | Default is 0 in ASL.\r | |
| 1000 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 1001 | of the node created.\r | |
| 1002 | @param [out] NewObjectNode If success, contains the created node.\r | |
| 1003 | \r | |
| 1004 | @retval EFI_SUCCESS Success.\r | |
| 1005 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 1006 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 1007 | **/\r | |
| 1008 | STATIC\r | |
| 1009 | EFI_STATUS\r | |
| 1010 | EFIAPI\r | |
| 1011 | AmlCodeGenMethod (\r | |
| 1012 | IN CONST CHAR8 * NameString,\r | |
| 1013 | IN UINT8 NumArgs,\r | |
| 1014 | IN BOOLEAN IsSerialized,\r | |
| 1015 | IN UINT8 SyncLevel,\r | |
| fe2d8189 | 1016 | IN AML_NODE_HEADER * ParentNode OPTIONAL,\r |
| de62ccbf PG |
1017 | OUT AML_OBJECT_NODE ** NewObjectNode OPTIONAL\r |
| 1018 | )\r | |
| 1019 | {\r | |
| 1020 | EFI_STATUS Status;\r | |
| 1021 | UINT32 PkgLen;\r | |
| 1022 | UINT8 Flags;\r | |
| 1023 | AML_OBJECT_NODE * ObjectNode;\r | |
| 1024 | AML_DATA_NODE * DataNode;\r | |
| 1025 | CHAR8 * AmlNameString;\r | |
| 1026 | UINT32 AmlNameStringSize;\r | |
| 1027 | \r | |
| 1028 | if ((NameString == NULL) ||\r | |
| 1029 | (NumArgs > 6) ||\r | |
| 1030 | (SyncLevel > 15) ||\r | |
| 1031 | ((ParentNode == NULL) && (NewObjectNode == NULL))) {\r | |
| 1032 | ASSERT (0);\r | |
| 1033 | return EFI_INVALID_PARAMETER;\r | |
| 1034 | }\r | |
| 1035 | \r | |
| 1036 | ObjectNode = NULL;\r | |
| 1037 | DataNode = NULL;\r | |
| 1038 | \r | |
| 1039 | // ACPI 6.4, s20.2.5.2 "Named Objects Encoding":\r | |
| 1040 | // DefMethod := MethodOp PkgLength NameString MethodFlags TermList\r | |
| 1041 | // MethodOp := 0x14\r | |
| 1042 | // So:\r | |
| 1043 | // 1- Create the NameString\r | |
| 1044 | // 2- Compute the size to write in the PkgLen\r | |
| 1045 | // 3- Create nodes for the NameString and Method object node\r | |
| 1046 | // 4- Set the NameString DataNode as a fixed argument\r | |
| 1047 | // 5- Create and link the MethodFlags node\r | |
| 1048 | \r | |
| 1049 | // 1- Create the NameString\r | |
| 1050 | Status = ConvertAslNameToAmlName (NameString, &AmlNameString);\r | |
| 1051 | if (EFI_ERROR (Status)) {\r | |
| 1052 | ASSERT (0);\r | |
| 1053 | return Status;\r | |
| 1054 | }\r | |
| 1055 | \r | |
| 1056 | Status = AmlGetNameStringSize (AmlNameString, &AmlNameStringSize);\r | |
| 1057 | if (EFI_ERROR (Status)) {\r | |
| 1058 | ASSERT (0);\r | |
| 1059 | goto error_handler1;\r | |
| 1060 | }\r | |
| 1061 | \r | |
| 1062 | // 2- Compute the size to write in the PkgLen\r | |
| 1063 | // Add 1 byte (ByteData) for MethodFlags.\r | |
| 1064 | Status = AmlComputePkgLength (AmlNameStringSize + 1, &PkgLen);\r | |
| 1065 | if (EFI_ERROR (Status)) {\r | |
| 1066 | ASSERT (0);\r | |
| 1067 | goto error_handler1;\r | |
| 1068 | }\r | |
| 1069 | \r | |
| 1070 | // 3- Create nodes for the NameString and Method object node\r | |
| 1071 | Status = AmlCreateObjectNode (\r | |
| 1072 | AmlGetByteEncodingByOpCode (AML_METHOD_OP, 0),\r | |
| 1073 | PkgLen,\r | |
| 1074 | &ObjectNode\r | |
| 1075 | );\r | |
| 1076 | if (EFI_ERROR (Status)) {\r | |
| 1077 | ASSERT (0);\r | |
| 1078 | goto error_handler1;\r | |
| 1079 | }\r | |
| 1080 | \r | |
| 1081 | Status = AmlCreateDataNode (\r | |
| 1082 | EAmlNodeDataTypeNameString,\r | |
| 1083 | (UINT8*)AmlNameString,\r | |
| 1084 | AmlNameStringSize,\r | |
| 1085 | &DataNode\r | |
| 1086 | );\r | |
| 1087 | if (EFI_ERROR (Status)) {\r | |
| 1088 | ASSERT (0);\r | |
| 1089 | goto error_handler2;\r | |
| 1090 | }\r | |
| 1091 | \r | |
| 1092 | // 4- Set the NameString DataNode as a fixed argument\r | |
| 1093 | Status = AmlSetFixedArgument (\r | |
| 1094 | ObjectNode,\r | |
| 1095 | EAmlParseIndexTerm0,\r | |
| 1096 | (AML_NODE_HEADER*)DataNode\r | |
| 1097 | );\r | |
| 1098 | if (EFI_ERROR (Status)) {\r | |
| 1099 | ASSERT (0);\r | |
| 1100 | goto error_handler2;\r | |
| 1101 | }\r | |
| 1102 | \r | |
| 1103 | DataNode = NULL;\r | |
| 1104 | \r | |
| 1105 | // 5- Create and link the MethodFlags node\r | |
| 1106 | Flags = NumArgs |\r | |
| 1107 | (IsSerialized ? BIT3 : 0) |\r | |
| 1108 | (SyncLevel << 4);\r | |
| 1109 | \r | |
| 1110 | Status = AmlCreateDataNode (EAmlNodeDataTypeUInt, &Flags, 1, &DataNode);\r | |
| 1111 | if (EFI_ERROR (Status)) {\r | |
| 1112 | ASSERT (0);\r | |
| 1113 | goto error_handler2;\r | |
| 1114 | }\r | |
| 1115 | \r | |
| 1116 | Status = AmlSetFixedArgument (\r | |
| 1117 | ObjectNode,\r | |
| 1118 | EAmlParseIndexTerm1,\r | |
| 1119 | (AML_NODE_HEADER*)DataNode\r | |
| 1120 | );\r | |
| 1121 | if (EFI_ERROR (Status)) {\r | |
| 1122 | ASSERT (0);\r | |
| 1123 | goto error_handler2;\r | |
| 1124 | }\r | |
| 1125 | \r | |
| 1126 | // Data node is attached so set the pointer to\r | |
| 1127 | // NULL to ensure correct error handling.\r | |
| 1128 | DataNode = NULL;\r | |
| 1129 | \r | |
| 1130 | Status = LinkNode (\r | |
| 1131 | ObjectNode,\r | |
| 1132 | ParentNode,\r | |
| 1133 | NewObjectNode\r | |
| 1134 | );\r | |
| 1135 | if (EFI_ERROR (Status)) {\r | |
| 1136 | ASSERT (0);\r | |
| 1137 | goto error_handler2;\r | |
| 1138 | }\r | |
| 1139 | \r | |
| 1140 | // Free AmlNameString before returning as it is copied\r | |
| 1141 | // in the call to AmlCreateDataNode().\r | |
| 1142 | goto error_handler1;\r | |
| 1143 | \r | |
| 1144 | error_handler2:\r | |
| 1145 | if (ObjectNode != NULL) {\r | |
| 1146 | AmlDeleteTree ((AML_NODE_HEADER*)ObjectNode);\r | |
| 1147 | }\r | |
| 1148 | if (DataNode != NULL) {\r | |
| 1149 | AmlDeleteTree ((AML_NODE_HEADER*)DataNode);\r | |
| 1150 | }\r | |
| 1151 | \r | |
| 1152 | error_handler1:\r | |
| 1153 | if (AmlNameString != NULL) {\r | |
| 1154 | FreePool (AmlNameString);\r | |
| 1155 | }\r | |
| 1156 | return Status;\r | |
| 1157 | }\r | |
| e2d7b495 PG |
1158 | \r |
| 1159 | /** AML code generation for a Return object node.\r | |
| 1160 | \r | |
| 1161 | AmlCodeGenReturn (ReturnNode, ParentNode, NewObjectNode) is\r | |
| 1162 | equivalent of the following ASL code:\r | |
| 1163 | Return([Content of the ReturnNode])\r | |
| 1164 | \r | |
| 1165 | The ACPI 6.3 specification, s20.2.5.3 "Type 1 Opcodes Encoding" states:\r | |
| 1166 | DefReturn := ReturnOp ArgObject\r | |
| 1167 | ReturnOp := 0xA4\r | |
| 1168 | ArgObject := TermArg => DataRefObject\r | |
| 1169 | \r | |
| 1170 | Thus, the ReturnNode must be evaluated as a DataRefObject. It can\r | |
| 1171 | be a NameString referencing an object. As this CodeGen Api doesn't\r | |
| 1172 | do semantic checking, it is strongly advised to check the AML bytecode\r | |
| 1173 | generated by this function against an ASL compiler.\r | |
| 1174 | \r | |
| 1175 | The ReturnNode must be generated inside a Method body scope.\r | |
| 1176 | \r | |
| 1177 | @param [in] ReturnNode The object returned by the Return ASL statement.\r | |
| 1178 | This node is deleted if an error occurs.\r | |
| 1179 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 1180 | of the node created.\r | |
| 1181 | Must be a MethodOp node.\r | |
| 1182 | @param [out] NewObjectNode If success, contains the created node.\r | |
| 1183 | \r | |
| 1184 | @retval EFI_SUCCESS Success.\r | |
| 1185 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 1186 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 1187 | **/\r | |
| 1188 | STATIC\r | |
| 1189 | EFI_STATUS\r | |
| 1190 | EFIAPI\r | |
| 1191 | AmlCodeGenReturn (\r | |
| 1192 | IN AML_NODE_HEADER * ReturnNode,\r | |
| fe2d8189 | 1193 | IN AML_NODE_HEADER * ParentNode OPTIONAL,\r |
| e2d7b495 PG |
1194 | OUT AML_OBJECT_NODE ** NewObjectNode OPTIONAL\r |
| 1195 | )\r | |
| 1196 | {\r | |
| 1197 | EFI_STATUS Status;\r | |
| 1198 | AML_OBJECT_NODE * ObjectNode;\r | |
| 1199 | \r | |
| 1200 | if ((ReturnNode == NULL) ||\r | |
| 1201 | ((ParentNode == NULL) && (NewObjectNode == NULL)) ||\r | |
| 1202 | ((ParentNode != NULL) &&\r | |
| 1203 | !AmlNodeCompareOpCode (\r | |
| 1204 | (AML_OBJECT_NODE*)ParentNode, AML_METHOD_OP, 0))) {\r | |
| 1205 | ASSERT (0);\r | |
| 1206 | return EFI_INVALID_PARAMETER;\r | |
| 1207 | }\r | |
| 1208 | \r | |
| 1209 | Status = AmlCreateObjectNode (\r | |
| 1210 | AmlGetByteEncodingByOpCode (AML_RETURN_OP, 0),\r | |
| 1211 | 0,\r | |
| 1212 | &ObjectNode\r | |
| 1213 | );\r | |
| 1214 | if (EFI_ERROR (Status)) {\r | |
| 1215 | ASSERT (0);\r | |
| 1216 | goto error_handler;\r | |
| 1217 | }\r | |
| 1218 | \r | |
| 1219 | Status = AmlSetFixedArgument (\r | |
| 1220 | ObjectNode,\r | |
| 1221 | EAmlParseIndexTerm0,\r | |
| 1222 | (AML_NODE_HEADER*)ReturnNode\r | |
| 1223 | );\r | |
| 1224 | if (EFI_ERROR (Status)) {\r | |
| 1225 | ASSERT (0);\r | |
| 1226 | goto error_handler;\r | |
| 1227 | }\r | |
| 1228 | \r | |
| 1229 | ReturnNode = NULL;\r | |
| 1230 | \r | |
| 1231 | Status = LinkNode (\r | |
| 1232 | ObjectNode,\r | |
| 1233 | ParentNode,\r | |
| 1234 | NewObjectNode\r | |
| 1235 | );\r | |
| 1236 | if (EFI_ERROR (Status)) {\r | |
| 1237 | ASSERT (0);\r | |
| 1238 | goto error_handler;\r | |
| 1239 | }\r | |
| 1240 | \r | |
| 1241 | return Status;\r | |
| 1242 | \r | |
| 1243 | error_handler:\r | |
| 1244 | if (ReturnNode != NULL) {\r | |
| 1245 | AmlDeleteTree (ReturnNode);\r | |
| 1246 | }\r | |
| 1247 | if (ObjectNode != NULL) {\r | |
| 1248 | AmlDeleteTree ((AML_NODE_HEADER*)ObjectNode);\r | |
| 1249 | }\r | |
| 1250 | return Status;\r | |
| 1251 | }\r | |
| 1252 | \r | |
| 1253 | /** AML code generation for a Return object node,\r | |
| 1254 | returning the object as an input NameString.\r | |
| 1255 | \r | |
| 1256 | AmlCodeGenReturn ("NAM1", ParentNode, NewObjectNode) is\r | |
| 1257 | equivalent of the following ASL code:\r | |
| 1258 | Return(NAM1)\r | |
| 1259 | \r | |
| 1260 | The ACPI 6.3 specification, s20.2.5.3 "Type 1 Opcodes Encoding" states:\r | |
| 1261 | DefReturn := ReturnOp ArgObject\r | |
| 1262 | ReturnOp := 0xA4\r | |
| 1263 | ArgObject := TermArg => DataRefObject\r | |
| 1264 | \r | |
| 1265 | Thus, the ReturnNode must be evaluated as a DataRefObject. It can\r | |
| 1266 | be a NameString referencing an object. As this CodeGen Api doesn't\r | |
| 1267 | do semantic checking, it is strongly advised to check the AML bytecode\r | |
| 1268 | generated by this function against an ASL compiler.\r | |
| 1269 | \r | |
| 1270 | The ReturnNode must be generated inside a Method body scope.\r | |
| 1271 | \r | |
| 1272 | @param [in] NameString The object referenced by this NameString\r | |
| 1273 | is returned by the Return ASL statement.\r | |
| 1274 | Must be a NULL-terminated ASL NameString\r | |
| 1275 | e.g.: "NAM1", "_SB.NAM1", etc.\r | |
| 1276 | The input string is copied.\r | |
| 1277 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 1278 | of the node created.\r | |
| 1279 | Must be a MethodOp node.\r | |
| 1280 | @param [out] NewObjectNode If success, contains the created node.\r | |
| 1281 | \r | |
| 1282 | @retval EFI_SUCCESS Success.\r | |
| 1283 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 1284 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 1285 | **/\r | |
| 1286 | STATIC\r | |
| 1287 | EFI_STATUS\r | |
| 1288 | EFIAPI\r | |
| 1289 | AmlCodeGenReturnNameString (\r | |
| 1290 | IN CONST CHAR8 * NameString,\r | |
| fe2d8189 | 1291 | IN AML_NODE_HEADER * ParentNode OPTIONAL,\r |
| e2d7b495 PG |
1292 | OUT AML_OBJECT_NODE ** NewObjectNode OPTIONAL\r |
| 1293 | )\r | |
| 1294 | {\r | |
| 1295 | EFI_STATUS Status;\r | |
| 1296 | AML_DATA_NODE * DataNode;\r | |
| 1297 | CHAR8 * AmlNameString;\r | |
| 1298 | UINT32 AmlNameStringSize;\r | |
| 1299 | \r | |
| 1300 | DataNode = NULL;\r | |
| 1301 | \r | |
| 1302 | Status = ConvertAslNameToAmlName (NameString, &AmlNameString);\r | |
| 1303 | if (EFI_ERROR (Status)) {\r | |
| 1304 | ASSERT (0);\r | |
| 1305 | return Status;\r | |
| 1306 | }\r | |
| 1307 | \r | |
| 1308 | Status = AmlGetNameStringSize (AmlNameString, &AmlNameStringSize);\r | |
| 1309 | if (EFI_ERROR (Status)) {\r | |
| 1310 | ASSERT (0);\r | |
| 1311 | goto exit_handler;\r | |
| 1312 | }\r | |
| 1313 | \r | |
| 1314 | Status = AmlCreateDataNode (\r | |
| 1315 | EAmlNodeDataTypeNameString,\r | |
| 1316 | (UINT8*)AmlNameString,\r | |
| 1317 | AmlNameStringSize,\r | |
| 1318 | &DataNode\r | |
| 1319 | );\r | |
| 1320 | if (EFI_ERROR (Status)) {\r | |
| 1321 | ASSERT (0);\r | |
| 1322 | goto exit_handler;\r | |
| 1323 | }\r | |
| 1324 | \r | |
| 1325 | // AmlCodeGenReturn() deletes DataNode if error.\r | |
| 1326 | Status = AmlCodeGenReturn (\r | |
| 1327 | (AML_NODE_HEADER*)DataNode,\r | |
| 1328 | ParentNode,\r | |
| 1329 | NewObjectNode\r | |
| 1330 | );\r | |
| 1331 | ASSERT_EFI_ERROR (Status);\r | |
| 1332 | \r | |
| 1333 | exit_handler:\r | |
| 1334 | if (AmlNameString != NULL) {\r | |
| 1335 | FreePool (AmlNameString);\r | |
| 1336 | }\r | |
| 1337 | return Status;\r | |
| 1338 | }\r | |
| 3e958e93 PG |
1339 | \r |
| 1340 | /** AML code generation for a method returning a NameString.\r | |
| 1341 | \r | |
| 1342 | AmlCodeGenMethodRetNameString (\r | |
| 1343 | "MET0", "_CRS", 1, TRUE, 3, ParentNode, NewObjectNode\r | |
| 1344 | );\r | |
| 1345 | is equivalent of the following ASL code:\r | |
| 1346 | Method(MET0, 1, Serialized, 3) {\r | |
| 1347 | Return (_CRS)\r | |
| 1348 | }\r | |
| 1349 | \r | |
| 1350 | The ASL parameters "ReturnType" and "ParameterTypes" are not asked\r | |
| 1351 | in this function. They are optional parameters in ASL.\r | |
| 1352 | \r | |
| 1353 | @param [in] MethodNameString The new Method's name.\r | |
| 1354 | Must be a NULL-terminated ASL NameString\r | |
| 1355 | e.g.: "MET0", "_SB.MET0", etc.\r | |
| 1356 | The input string is copied.\r | |
| 1357 | @param [in] ReturnedNameString The name of the object returned by the\r | |
| 1358 | method. Optional parameter, can be:\r | |
| 1359 | - NULL (ignored).\r | |
| 1360 | - A NULL-terminated ASL NameString.\r | |
| 1361 | e.g.: "MET0", "_SB.MET0", etc.\r | |
| 1362 | The input string is copied.\r | |
| 1363 | @param [in] NumArgs Number of arguments.\r | |
| 1364 | Must be 0 <= NumArgs <= 6.\r | |
| 1365 | @param [in] IsSerialized TRUE is equivalent to Serialized.\r | |
| 1366 | FALSE is equivalent to NotSerialized.\r | |
| 1367 | Default is NotSerialized in ASL spec.\r | |
| 1368 | @param [in] SyncLevel Synchronization level for the method.\r | |
| 1369 | Must be 0 <= SyncLevel <= 15.\r | |
| 1370 | Default is 0 in ASL.\r | |
| 1371 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 1372 | of the node created.\r | |
| 1373 | @param [out] NewObjectNode If success, contains the created node.\r | |
| 1374 | \r | |
| 1375 | @retval EFI_SUCCESS Success.\r | |
| 1376 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 1377 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 1378 | **/\r | |
| 1379 | EFI_STATUS\r | |
| 1380 | EFIAPI\r | |
| 1381 | AmlCodeGenMethodRetNameString (\r | |
| 1382 | IN CONST CHAR8 * MethodNameString,\r | |
| fe2d8189 | 1383 | IN CONST CHAR8 * ReturnedNameString OPTIONAL,\r |
| 3e958e93 PG |
1384 | IN UINT8 NumArgs,\r |
| 1385 | IN BOOLEAN IsSerialized,\r | |
| 1386 | IN UINT8 SyncLevel,\r | |
| fe2d8189 | 1387 | IN AML_NODE_HANDLE ParentNode OPTIONAL,\r |
| 3e958e93 PG |
1388 | OUT AML_OBJECT_NODE_HANDLE * NewObjectNode OPTIONAL\r |
| 1389 | )\r | |
| 1390 | {\r | |
| 1391 | EFI_STATUS Status;\r | |
| 1392 | AML_OBJECT_NODE_HANDLE MethodNode;\r | |
| 1393 | \r | |
| 1394 | if ((MethodNameString == NULL) ||\r | |
| 1395 | ((ParentNode == NULL) && (NewObjectNode == NULL))) {\r | |
| 1396 | ASSERT (0);\r | |
| 1397 | return EFI_INVALID_PARAMETER;\r | |
| 1398 | }\r | |
| 1399 | \r | |
| 1400 | // Create a Method named MethodNameString.\r | |
| 1401 | Status = AmlCodeGenMethod (\r | |
| 1402 | MethodNameString,\r | |
| 1403 | NumArgs,\r | |
| 1404 | IsSerialized,\r | |
| 1405 | SyncLevel,\r | |
| 1406 | NULL,\r | |
| 1407 | &MethodNode\r | |
| 1408 | );\r | |
| 1409 | if (EFI_ERROR (Status)) {\r | |
| 1410 | ASSERT (0);\r | |
| 1411 | return Status;\r | |
| 1412 | }\r | |
| 1413 | \r | |
| 1414 | // Return ReturnedNameString if provided.\r | |
| 1415 | if (ReturnedNameString != NULL) {\r | |
| 1416 | Status = AmlCodeGenReturnNameString (\r | |
| 1417 | ReturnedNameString,\r | |
| 1418 | (AML_NODE_HANDLE)MethodNode,\r | |
| 1419 | NULL\r | |
| 1420 | );\r | |
| 1421 | if (EFI_ERROR (Status)) {\r | |
| 1422 | ASSERT (0);\r | |
| 1423 | goto error_handler;\r | |
| 1424 | }\r | |
| 1425 | }\r | |
| 1426 | \r | |
| 1427 | Status = LinkNode (\r | |
| 1428 | MethodNode,\r | |
| 1429 | ParentNode,\r | |
| 1430 | NewObjectNode\r | |
| 1431 | );\r | |
| 1432 | if (EFI_ERROR (Status)) {\r | |
| 1433 | ASSERT (0);\r | |
| 1434 | goto error_handler;\r | |
| 1435 | }\r | |
| 1436 | \r | |
| 1437 | return Status;\r | |
| 1438 | \r | |
| 1439 | error_handler:\r | |
| 1440 | if (MethodNode != NULL) {\r | |
| 1441 | AmlDeleteTree ((AML_NODE_HANDLE)MethodNode);\r | |
| 1442 | }\r | |
| 1443 | return Status;\r | |
| 1444 | }\r | |
| 018a962d PG |
1445 | \r |
| 1446 | /** Create a _LPI name.\r | |
| 1447 | \r | |
| 1448 | AmlCreateLpiNode ("_LPI", 0, 1, ParentNode, &LpiNode) is\r | |
| 1449 | equivalent of the following ASL code:\r | |
| 1450 | Name (_LPI, Package (\r | |
| 1451 | 0, // Revision\r | |
| 1452 | 1, // LevelId\r | |
| 1453 | 0 // Count\r | |
| 1454 | ))\r | |
| 1455 | \r | |
| 1456 | This function doesn't define any LPI state. As shown above, the count\r | |
| 1457 | of _LPI state is set to 0.\r | |
| 1458 | The AmlAddLpiState () function allows to add LPI states.\r | |
| 1459 | \r | |
| 1460 | Cf ACPI 6.3 specification, s8.4.4 "Lower Power Idle States".\r | |
| 1461 | \r | |
| 1462 | @param [in] LpiNameString The new LPI 's object name.\r | |
| 1463 | Must be a NULL-terminated ASL NameString\r | |
| 1464 | e.g.: "_LPI", "DEV0.PLPI", etc.\r | |
| 1465 | The input string is copied.\r | |
| 1466 | @param [in] Revision Revision number of the _LPI states.\r | |
| 1467 | @param [in] LevelId A platform defined number that identifies the\r | |
| 1468 | level of hierarchy of the processor node to\r | |
| 1469 | which the LPI states apply.\r | |
| 1470 | @param [in] ParentNode If provided, set ParentNode as the parent\r | |
| 1471 | of the node created.\r | |
| 1472 | @param [out] NewLpiNode If success, contains the created node.\r | |
| 1473 | \r | |
| 1474 | @retval EFI_SUCCESS The function completed successfully.\r | |
| 1475 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 1476 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 1477 | **/\r | |
| 1478 | EFI_STATUS\r | |
| 1479 | EFIAPI\r | |
| 1480 | AmlCreateLpiNode (\r | |
| 1481 | IN CONST CHAR8 * LpiNameString,\r | |
| 1482 | IN UINT16 Revision,\r | |
| 1483 | IN UINT64 LevelId,\r | |
| fe2d8189 | 1484 | IN AML_NODE_HANDLE ParentNode OPTIONAL,\r |
| 018a962d PG |
1485 | OUT AML_OBJECT_NODE_HANDLE * NewLpiNode OPTIONAL\r |
| 1486 | )\r | |
| 1487 | {\r | |
| 1488 | EFI_STATUS Status;\r | |
| 1489 | AML_OBJECT_NODE_HANDLE PackageNode;\r | |
| 1490 | AML_OBJECT_NODE_HANDLE IntegerNode;\r | |
| 1491 | \r | |
| 1492 | if ((LpiNameString == NULL) ||\r | |
| 1493 | ((ParentNode == NULL) && (NewLpiNode == NULL))) {\r | |
| 1494 | ASSERT (0);\r | |
| 1495 | return EFI_INVALID_PARAMETER;\r | |
| 1496 | }\r | |
| 1497 | \r | |
| 1498 | IntegerNode = NULL;\r | |
| 1499 | \r | |
| 1500 | Status = AmlCodeGenPackage (&PackageNode);\r | |
| 1501 | if (EFI_ERROR (Status)) {\r | |
| 1502 | ASSERT (0);\r | |
| 1503 | return Status;\r | |
| 1504 | }\r | |
| 1505 | \r | |
| 1506 | // Create and attach Revision\r | |
| 1507 | Status = AmlCodeGenInteger (Revision, &IntegerNode);\r | |
| 1508 | if (EFI_ERROR (Status)) {\r | |
| 1509 | ASSERT (0);\r | |
| 1510 | IntegerNode = NULL;\r | |
| 1511 | goto error_handler;\r | |
| 1512 | }\r | |
| 1513 | \r | |
| 1514 | Status = AmlVarListAddTail (\r | |
| 1515 | (AML_NODE_HANDLE)PackageNode,\r | |
| 1516 | (AML_NODE_HANDLE)IntegerNode\r | |
| 1517 | );\r | |
| 1518 | if (EFI_ERROR (Status)) {\r | |
| 1519 | ASSERT (0);\r | |
| 1520 | goto error_handler;\r | |
| 1521 | }\r | |
| 1522 | \r | |
| 1523 | IntegerNode = NULL;\r | |
| 1524 | \r | |
| 1525 | // Create and attach LevelId\r | |
| 1526 | Status = AmlCodeGenInteger (LevelId, &IntegerNode);\r | |
| 1527 | if (EFI_ERROR (Status)) {\r | |
| 1528 | ASSERT (0);\r | |
| 1529 | IntegerNode = NULL;\r | |
| 1530 | goto error_handler;\r | |
| 1531 | }\r | |
| 1532 | \r | |
| 1533 | Status = AmlVarListAddTail (\r | |
| 1534 | (AML_NODE_HANDLE)PackageNode,\r | |
| 1535 | (AML_NODE_HANDLE)IntegerNode\r | |
| 1536 | );\r | |
| 1537 | if (EFI_ERROR (Status)) {\r | |
| 1538 | ASSERT (0);\r | |
| 1539 | goto error_handler;\r | |
| 1540 | }\r | |
| 1541 | \r | |
| 1542 | IntegerNode = NULL;\r | |
| 1543 | \r | |
| 1544 | // Create and attach Count. No LPI state is added, so 0.\r | |
| 1545 | Status = AmlCodeGenInteger (0, &IntegerNode);\r | |
| 1546 | if (EFI_ERROR (Status)) {\r | |
| 1547 | ASSERT (0);\r | |
| 1548 | IntegerNode = NULL;\r | |
| 1549 | goto error_handler;\r | |
| 1550 | }\r | |
| 1551 | \r | |
| 1552 | Status = AmlVarListAddTail (\r | |
| 1553 | (AML_NODE_HANDLE)PackageNode,\r | |
| 1554 | (AML_NODE_HANDLE)IntegerNode\r | |
| 1555 | );\r | |
| 1556 | if (EFI_ERROR (Status)) {\r | |
| 1557 | ASSERT (0);\r | |
| 1558 | goto error_handler;\r | |
| 1559 | }\r | |
| 1560 | \r | |
| 1561 | IntegerNode = NULL;\r | |
| 1562 | \r | |
| 1563 | Status = AmlCodeGenName (LpiNameString, PackageNode, ParentNode, NewLpiNode);\r | |
| 1564 | if (EFI_ERROR (Status)) {\r | |
| 1565 | ASSERT (0);\r | |
| 1566 | goto error_handler;\r | |
| 1567 | }\r | |
| 1568 | \r | |
| 1569 | return Status;\r | |
| 1570 | \r | |
| 1571 | error_handler:\r | |
| 1572 | AmlDeleteTree ((AML_NODE_HANDLE)PackageNode);\r | |
| 1573 | if (IntegerNode != NULL) {\r | |
| 1574 | AmlDeleteTree ((AML_NODE_HANDLE)IntegerNode);\r | |
| 1575 | }\r | |
| 1576 | return Status;\r | |
| 1577 | }\r | |
| a5e36ad9 PG |
1578 | \r |
| 1579 | /** Add an _LPI state to a LPI node created using AmlCreateLpiNode.\r | |
| 1580 | \r | |
| 1581 | AmlAddLpiState increments the Count of LPI states in the LPI node by one,\r | |
| 1582 | and adds the following package:\r | |
| 1583 | Package() {\r | |
| 1584 | MinResidency,\r | |
| 1585 | WorstCaseWakeLatency,\r | |
| 1586 | Flags,\r | |
| 1587 | ArchFlags,\r | |
| 1588 | ResCntFreq,\r | |
| 1589 | EnableParentState,\r | |
| 1590 | (GenericRegisterDescriptor != NULL) ? // Entry method. If a\r | |
| 1591 | ResourceTemplate(GenericRegisterDescriptor) : // Register is given,\r | |
| 1592 | Integer, // use it. Use the\r | |
| 1593 | // Integer otherwise.\r | |
| 1594 | ResourceTemplate() { // NULL Residency Counter\r | |
| 1595 | Register (SystemMemory, 0, 0, 0, 0)\r | |
| 1596 | },\r | |
| 1597 | ResourceTemplate() { // NULL Usage Counter\r | |
| 1598 | Register (SystemMemory, 0, 0, 0, 0)\r | |
| 1599 | },\r | |
| 1600 | "" // NULL State Name\r | |
| 1601 | },\r | |
| 1602 | \r | |
| 1603 | Cf ACPI 6.3 specification, s8.4.4 "Lower Power Idle States".\r | |
| 1604 | \r | |
| 1605 | @param [in] MinResidency Minimum Residency.\r | |
| 1606 | @param [in] WorstCaseWakeLatency Worst case wake-up latency.\r | |
| 1607 | @param [in] Flags Flags.\r | |
| 1608 | @param [in] ArchFlags Architectural flags.\r | |
| 1609 | @param [in] ResCntFreq Residency Counter Frequency.\r | |
| 1610 | @param [in] EnableParentState Enabled Parent State.\r | |
| 1611 | @param [in] GenericRegisterDescriptor Entry Method.\r | |
| 1612 | If not NULL, use this Register to\r | |
| 1613 | describe the entry method address.\r | |
| 1614 | @param [in] Integer Entry Method.\r | |
| 1615 | If GenericRegisterDescriptor is NULL,\r | |
| 1616 | take this value.\r | |
| 1617 | @param [in] ResidencyCounterRegister If not NULL, use it to populate the\r | |
| 1618 | residency counter register.\r | |
| 1619 | @param [in] UsageCounterRegister If not NULL, use it to populate the\r | |
| 1620 | usage counter register.\r | |
| 1621 | @param [in] StateName If not NULL, use it to populate the\r | |
| 1622 | state name.\r | |
| 1623 | @param [in] LpiNode Lpi node created with the function\r | |
| 1624 | AmlCreateLpiNode to which the new LPI\r | |
| 1625 | state is appended.\r | |
| 1626 | \r | |
| 1627 | @retval EFI_SUCCESS The function completed successfully.\r | |
| 1628 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
| 1629 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
| 1630 | **/\r | |
| 1631 | EFI_STATUS\r | |
| 1632 | EFIAPI\r | |
| 1633 | AmlAddLpiState (\r | |
| 1634 | IN UINT32 MinResidency,\r | |
| 1635 | IN UINT32 WorstCaseWakeLatency,\r | |
| 1636 | IN UINT32 Flags,\r | |
| 1637 | IN UINT32 ArchFlags,\r | |
| 1638 | IN UINT32 ResCntFreq,\r | |
| 1639 | IN UINT32 EnableParentState,\r | |
| fe2d8189 MK |
1640 | IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE * GenericRegisterDescriptor OPTIONAL,\r |
| 1641 | IN UINT64 Integer OPTIONAL,\r | |
| 1642 | IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE * ResidencyCounterRegister OPTIONAL,\r | |
| 1643 | IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE * UsageCounterRegister OPTIONAL,\r | |
| 1644 | IN CHAR8 * StateName OPTIONAL,\r | |
| a5e36ad9 PG |
1645 | IN AML_OBJECT_NODE_HANDLE LpiNode\r |
| 1646 | )\r | |
| 1647 | {\r | |
| 1648 | EFI_STATUS Status;\r | |
| 1649 | AML_DATA_NODE_HANDLE RdNode;\r | |
| 1650 | AML_OBJECT_NODE_HANDLE PackageNode;\r | |
| 1651 | AML_OBJECT_NODE_HANDLE IntegerNode;\r | |
| 1652 | AML_OBJECT_NODE_HANDLE StringNode;\r | |
| 1653 | AML_OBJECT_NODE_HANDLE NewLpiPackageNode;\r | |
| 1654 | AML_OBJECT_NODE_HANDLE ResourceTemplateNode;\r | |
| 1655 | \r | |
| 1656 | UINT32 Index;\r | |
| 1657 | AML_OBJECT_NODE_HANDLE CountNode;\r | |
| 1658 | UINT64 Count;\r | |
| 1659 | \r | |
| 1660 | if ((LpiNode == NULL) ||\r | |
| 1661 | (AmlGetNodeType ((AML_NODE_HANDLE)LpiNode) != EAmlNodeObject) ||\r | |
| 1662 | (!AmlNodeHasOpCode (LpiNode, AML_NAME_OP, 0))) {\r | |
| 1663 | ASSERT (0);\r | |
| 1664 | return EFI_INVALID_PARAMETER;\r | |
| 1665 | }\r | |
| 1666 | \r | |
| 1667 | RdNode = 0;\r | |
| 1668 | StringNode = NULL;\r | |
| 1669 | IntegerNode = NULL;\r | |
| 1670 | ResourceTemplateNode = NULL;\r | |
| 1671 | \r | |
| 1672 | // AmlCreateLpiNode () created a LPI container such as:\r | |
| 1673 | // Name (_LPI, Package (\r | |
| 1674 | // 0, // Revision\r | |
| 1675 | // 1, // LevelId\r | |
| 1676 | // 0 // Count\r | |
| 1677 | // ))\r | |
| 1678 | // Get the LPI container, a PackageOp object node stored as the 2nd fixed\r | |
| 1679 | // argument (i.e. index 1) of LpiNode.\r | |
| 1680 | PackageNode = (AML_OBJECT_NODE_HANDLE)AmlGetFixedArgument (\r | |
| 1681 | LpiNode,\r | |
| 1682 | EAmlParseIndexTerm1\r | |
| 1683 | );\r | |
| 1684 | if ((PackageNode == NULL) ||\r | |
| 1685 | (AmlGetNodeType ((AML_NODE_HANDLE)PackageNode) != EAmlNodeObject) ||\r | |
| 1686 | (!AmlNodeHasOpCode (PackageNode, AML_PACKAGE_OP, 0))) {\r | |
| 1687 | ASSERT (0);\r | |
| 1688 | return EFI_INVALID_PARAMETER;\r | |
| 1689 | }\r | |
| 1690 | \r | |
| 1691 | CountNode = NULL;\r | |
| 1692 | // The third variable argument is the LPI Count node.\r | |
| 1693 | for (Index = 0; Index < 3; Index++) {\r | |
| 1694 | CountNode = (AML_OBJECT_NODE_HANDLE)AmlGetNextVariableArgument (\r | |
| 1695 | (AML_NODE_HANDLE)PackageNode,\r | |
| 1696 | (AML_NODE_HANDLE)CountNode\r | |
| 1697 | );\r | |
| 1698 | if (CountNode == NULL) {\r | |
| 1699 | ASSERT (0);\r | |
| 1700 | return EFI_INVALID_PARAMETER;\r | |
| 1701 | }\r | |
| 1702 | }\r | |
| 1703 | \r | |
| 1704 | Status = AmlNodeGetIntegerValue (CountNode, &Count);\r | |
| 1705 | if (EFI_ERROR (Status)) {\r | |
| 1706 | ASSERT (0);\r | |
| 1707 | return Status;\r | |
| 1708 | }\r | |
| 1709 | Status = AmlUpdateInteger (CountNode, Count + 1);\r | |
| 1710 | if (EFI_ERROR (Status)) {\r | |
| 1711 | ASSERT (0);\r | |
| 1712 | return Status;\r | |
| 1713 | }\r | |
| 1714 | \r | |
| 1715 | Status = AmlCodeGenPackage (&NewLpiPackageNode);\r | |
| 1716 | if (EFI_ERROR (Status)) {\r | |
| 1717 | ASSERT (0);\r | |
| 1718 | return Status;\r | |
| 1719 | }\r | |
| 1720 | \r | |
| 1721 | // MinResidency\r | |
| 1722 | Status = AmlCodeGenInteger (MinResidency, &IntegerNode);\r | |
| 1723 | if (EFI_ERROR (Status)) {\r | |
| 1724 | ASSERT (0);\r | |
| 1725 | IntegerNode = NULL;\r | |
| 1726 | goto error_handler;\r | |
| 1727 | }\r | |
| 1728 | Status = AmlVarListAddTail (\r | |
| 1729 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1730 | (AML_NODE_HANDLE)IntegerNode\r | |
| 1731 | );\r | |
| 1732 | if (EFI_ERROR (Status)) {\r | |
| 1733 | ASSERT (0);\r | |
| 1734 | goto error_handler;\r | |
| 1735 | }\r | |
| 1736 | IntegerNode = NULL;\r | |
| 1737 | \r | |
| 1738 | // WorstCaseWakeLatency\r | |
| 1739 | Status = AmlCodeGenInteger (WorstCaseWakeLatency, &IntegerNode);\r | |
| 1740 | if (EFI_ERROR (Status)) {\r | |
| 1741 | ASSERT (0);\r | |
| 1742 | IntegerNode = NULL;\r | |
| 1743 | goto error_handler;\r | |
| 1744 | }\r | |
| 1745 | Status = AmlVarListAddTail (\r | |
| 1746 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1747 | (AML_NODE_HANDLE)IntegerNode\r | |
| 1748 | );\r | |
| 1749 | if (EFI_ERROR (Status)) {\r | |
| 1750 | ASSERT (0);\r | |
| 1751 | goto error_handler;\r | |
| 1752 | }\r | |
| 1753 | IntegerNode = NULL;\r | |
| 1754 | \r | |
| 1755 | // Flags\r | |
| 1756 | Status = AmlCodeGenInteger (Flags, &IntegerNode);\r | |
| 1757 | if (EFI_ERROR (Status)) {\r | |
| 1758 | ASSERT (0);\r | |
| 1759 | IntegerNode = NULL;\r | |
| 1760 | goto error_handler;\r | |
| 1761 | }\r | |
| 1762 | Status = AmlVarListAddTail (\r | |
| 1763 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1764 | (AML_NODE_HANDLE)IntegerNode\r | |
| 1765 | );\r | |
| 1766 | if (EFI_ERROR (Status)) {\r | |
| 1767 | ASSERT (0);\r | |
| 1768 | goto error_handler;\r | |
| 1769 | }\r | |
| 1770 | IntegerNode = NULL;\r | |
| 1771 | \r | |
| 1772 | // ArchFlags\r | |
| 1773 | Status = AmlCodeGenInteger (ArchFlags, &IntegerNode);\r | |
| 1774 | if (EFI_ERROR (Status)) {\r | |
| 1775 | ASSERT (0);\r | |
| 1776 | IntegerNode = NULL;\r | |
| 1777 | goto error_handler;\r | |
| 1778 | }\r | |
| 1779 | Status = AmlVarListAddTail (\r | |
| 1780 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1781 | (AML_NODE_HANDLE)IntegerNode\r | |
| 1782 | );\r | |
| 1783 | if (EFI_ERROR (Status)) {\r | |
| 1784 | ASSERT (0);\r | |
| 1785 | goto error_handler;\r | |
| 1786 | }\r | |
| 1787 | IntegerNode = NULL;\r | |
| 1788 | \r | |
| 1789 | // ResCntFreq\r | |
| 1790 | Status = AmlCodeGenInteger (ResCntFreq, &IntegerNode);\r | |
| 1791 | if (EFI_ERROR (Status)) {\r | |
| 1792 | ASSERT (0);\r | |
| 1793 | IntegerNode = NULL;\r | |
| 1794 | goto error_handler;\r | |
| 1795 | }\r | |
| 1796 | Status = AmlVarListAddTail (\r | |
| 1797 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1798 | (AML_NODE_HANDLE)IntegerNode\r | |
| 1799 | );\r | |
| 1800 | if (EFI_ERROR (Status)) {\r | |
| 1801 | ASSERT (0);\r | |
| 1802 | goto error_handler;\r | |
| 1803 | }\r | |
| 1804 | IntegerNode = NULL;\r | |
| 1805 | \r | |
| 1806 | // EnableParentState\r | |
| 1807 | Status = AmlCodeGenInteger (EnableParentState, &IntegerNode);\r | |
| 1808 | if (EFI_ERROR (Status)) {\r | |
| 1809 | ASSERT (0);\r | |
| 1810 | IntegerNode = NULL;\r | |
| 1811 | goto error_handler;\r | |
| 1812 | }\r | |
| 1813 | Status = AmlVarListAddTail (\r | |
| 1814 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1815 | (AML_NODE_HANDLE)IntegerNode\r | |
| 1816 | );\r | |
| 1817 | if (EFI_ERROR (Status)) {\r | |
| 1818 | ASSERT (0);\r | |
| 1819 | goto error_handler;\r | |
| 1820 | }\r | |
| 1821 | IntegerNode = NULL;\r | |
| 1822 | \r | |
| 1823 | // Entry Method\r | |
| 1824 | if (GenericRegisterDescriptor != NULL) {\r | |
| 1825 | // Entry Method: As a Register resource data\r | |
| 1826 | Status = AmlCodeGenResourceTemplate (&ResourceTemplateNode);\r | |
| 1827 | if (EFI_ERROR (Status)) {\r | |
| 1828 | ASSERT (0);\r | |
| 1829 | ResourceTemplateNode = NULL;\r | |
| 1830 | goto error_handler;\r | |
| 1831 | }\r | |
| 1832 | Status = AmlCodeGenRdRegister (\r | |
| 1833 | GenericRegisterDescriptor->AddressSpaceId,\r | |
| 1834 | GenericRegisterDescriptor->RegisterBitWidth,\r | |
| 1835 | GenericRegisterDescriptor->RegisterBitOffset,\r | |
| 1836 | GenericRegisterDescriptor->Address,\r | |
| 1837 | GenericRegisterDescriptor->AccessSize,\r | |
| 1838 | NULL,\r | |
| 1839 | &RdNode\r | |
| 1840 | );\r | |
| 1841 | if (EFI_ERROR (Status)) {\r | |
| 1842 | ASSERT (0);\r | |
| 1843 | RdNode = NULL;\r | |
| 1844 | goto error_handler;\r | |
| 1845 | }\r | |
| 1846 | \r | |
| 1847 | Status = AmlAppendRdNode (ResourceTemplateNode, RdNode);\r | |
| 1848 | if (EFI_ERROR (Status)) {\r | |
| 1849 | ASSERT (0);\r | |
| 1850 | goto error_handler;\r | |
| 1851 | }\r | |
| 1852 | RdNode = NULL;\r | |
| 1853 | \r | |
| 1854 | Status = AmlVarListAddTail (\r | |
| 1855 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1856 | (AML_NODE_HANDLE)ResourceTemplateNode\r | |
| 1857 | );\r | |
| 1858 | if (EFI_ERROR (Status)) {\r | |
| 1859 | ASSERT (0);\r | |
| 1860 | goto error_handler;\r | |
| 1861 | }\r | |
| 1862 | ResourceTemplateNode = NULL;\r | |
| 1863 | } else {\r | |
| 1864 | // Entry Method: As an integer\r | |
| 1865 | Status = AmlCodeGenInteger (Integer, &IntegerNode);\r | |
| 1866 | if (EFI_ERROR (Status)) {\r | |
| 1867 | ASSERT (0);\r | |
| 1868 | IntegerNode = NULL;\r | |
| 1869 | goto error_handler;\r | |
| 1870 | }\r | |
| 1871 | Status = AmlVarListAddTail (\r | |
| 1872 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1873 | (AML_NODE_HANDLE)IntegerNode\r | |
| 1874 | );\r | |
| 1875 | if (EFI_ERROR (Status)) {\r | |
| 1876 | ASSERT (0);\r | |
| 1877 | goto error_handler;\r | |
| 1878 | }\r | |
| 1879 | IntegerNode = NULL;\r | |
| 1880 | }\r | |
| 1881 | \r | |
| 1882 | // Residency Counter Register.\r | |
| 1883 | Status = AmlCodeGenResourceTemplate (&ResourceTemplateNode);\r | |
| 1884 | if (EFI_ERROR (Status)) {\r | |
| 1885 | ASSERT (0);\r | |
| 1886 | ResourceTemplateNode = NULL;\r | |
| 1887 | goto error_handler;\r | |
| 1888 | }\r | |
| 1889 | if (ResidencyCounterRegister != NULL) {\r | |
| 1890 | Status = AmlCodeGenRdRegister (\r | |
| 1891 | ResidencyCounterRegister->AddressSpaceId,\r | |
| 1892 | ResidencyCounterRegister->RegisterBitWidth,\r | |
| 1893 | ResidencyCounterRegister->RegisterBitOffset,\r | |
| 1894 | ResidencyCounterRegister->Address,\r | |
| 1895 | ResidencyCounterRegister->AccessSize,\r | |
| 1896 | NULL,\r | |
| 1897 | &RdNode\r | |
| 1898 | );\r | |
| 1899 | } else {\r | |
| 1900 | Status = AmlCodeGenRdRegister (\r | |
| 1901 | EFI_ACPI_6_4_SYSTEM_MEMORY,\r | |
| 1902 | 0,\r | |
| 1903 | 0,\r | |
| 1904 | 0,\r | |
| 1905 | 0,\r | |
| 1906 | NULL,\r | |
| 1907 | &RdNode\r | |
| 1908 | );\r | |
| 1909 | }\r | |
| 1910 | if (EFI_ERROR (Status)) {\r | |
| 1911 | ASSERT (0);\r | |
| 1912 | RdNode = NULL;\r | |
| 1913 | goto error_handler;\r | |
| 1914 | }\r | |
| 1915 | \r | |
| 1916 | Status = AmlAppendRdNode (ResourceTemplateNode, RdNode);\r | |
| 1917 | if (EFI_ERROR (Status)) {\r | |
| 1918 | ASSERT (0);\r | |
| 1919 | goto error_handler;\r | |
| 1920 | }\r | |
| 1921 | RdNode = NULL;\r | |
| 1922 | \r | |
| 1923 | Status = AmlVarListAddTail (\r | |
| 1924 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1925 | (AML_NODE_HANDLE)ResourceTemplateNode\r | |
| 1926 | );\r | |
| 1927 | if (EFI_ERROR (Status)) {\r | |
| 1928 | ASSERT (0);\r | |
| 1929 | goto error_handler;\r | |
| 1930 | }\r | |
| 1931 | ResourceTemplateNode = NULL;\r | |
| 1932 | \r | |
| 1933 | // Usage Counter Register.\r | |
| 1934 | Status = AmlCodeGenResourceTemplate (&ResourceTemplateNode);\r | |
| 1935 | if (EFI_ERROR (Status)) {\r | |
| 1936 | ASSERT (0);\r | |
| 1937 | ResourceTemplateNode = NULL;\r | |
| 1938 | goto error_handler;\r | |
| 1939 | }\r | |
| 1940 | if (UsageCounterRegister != NULL) {\r | |
| 1941 | Status = AmlCodeGenRdRegister (\r | |
| 1942 | UsageCounterRegister->AddressSpaceId,\r | |
| 1943 | UsageCounterRegister->RegisterBitWidth,\r | |
| 1944 | UsageCounterRegister->RegisterBitOffset,\r | |
| 1945 | UsageCounterRegister->Address,\r | |
| 1946 | UsageCounterRegister->AccessSize,\r | |
| 1947 | NULL,\r | |
| 1948 | &RdNode\r | |
| 1949 | );\r | |
| 1950 | } else {\r | |
| 1951 | Status = AmlCodeGenRdRegister (\r | |
| 1952 | EFI_ACPI_6_4_SYSTEM_MEMORY,\r | |
| 1953 | 0,\r | |
| 1954 | 0,\r | |
| 1955 | 0,\r | |
| 1956 | 0,\r | |
| 1957 | NULL,\r | |
| 1958 | &RdNode\r | |
| 1959 | );\r | |
| 1960 | }\r | |
| 1961 | if (EFI_ERROR (Status)) {\r | |
| 1962 | ASSERT (0);\r | |
| 1963 | RdNode = NULL;\r | |
| 1964 | goto error_handler;\r | |
| 1965 | }\r | |
| 1966 | \r | |
| 1967 | Status = AmlAppendRdNode (ResourceTemplateNode, RdNode);\r | |
| 1968 | if (EFI_ERROR (Status)) {\r | |
| 1969 | ASSERT (0);\r | |
| 1970 | goto error_handler;\r | |
| 1971 | }\r | |
| 1972 | RdNode = NULL;\r | |
| 1973 | \r | |
| 1974 | Status = AmlVarListAddTail (\r | |
| 1975 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1976 | (AML_NODE_HANDLE)ResourceTemplateNode\r | |
| 1977 | );\r | |
| 1978 | if (EFI_ERROR (Status)) {\r | |
| 1979 | ASSERT (0);\r | |
| 1980 | goto error_handler;\r | |
| 1981 | }\r | |
| 1982 | ResourceTemplateNode = NULL;\r | |
| 1983 | \r | |
| 1984 | // State name.\r | |
| 1985 | if (UsageCounterRegister != NULL) {\r | |
| 1986 | Status = AmlCodeGenString (StateName, &StringNode);\r | |
| 1987 | } else {\r | |
| 1988 | Status = AmlCodeGenString ("", &StringNode);\r | |
| 1989 | }\r | |
| 1990 | if (EFI_ERROR (Status)) {\r | |
| 1991 | ASSERT (0);\r | |
| 1992 | StringNode = NULL;\r | |
| 1993 | goto error_handler;\r | |
| 1994 | }\r | |
| 1995 | Status = AmlVarListAddTail (\r | |
| 1996 | (AML_NODE_HANDLE)NewLpiPackageNode,\r | |
| 1997 | (AML_NODE_HANDLE)StringNode\r | |
| 1998 | );\r | |
| 1999 | if (EFI_ERROR (Status)) {\r | |
| 2000 | ASSERT (0);\r | |
| 2001 | goto error_handler;\r | |
| 2002 | }\r | |
| 2003 | StringNode = NULL;\r | |
| 2004 | \r | |
| 2005 | // Add the new LPI state to the LpiNode.\r | |
| 2006 | Status = AmlVarListAddTail (\r | |
| 2007 | (AML_NODE_HANDLE)PackageNode,\r | |
| 2008 | (AML_NODE_HANDLE)NewLpiPackageNode\r | |
| 2009 | );\r | |
| 2010 | if (EFI_ERROR (Status)) {\r | |
| 2011 | ASSERT (0);\r | |
| 2012 | goto error_handler;\r | |
| 2013 | }\r | |
| 2014 | \r | |
| 2015 | return Status;\r | |
| 2016 | \r | |
| 2017 | error_handler:\r | |
| 2018 | if (RdNode != NULL) {\r | |
| 2019 | AmlDeleteTree ((AML_NODE_HANDLE)RdNode);\r | |
| 2020 | }\r | |
| 2021 | if (NewLpiPackageNode != NULL) {\r | |
| 2022 | AmlDeleteTree ((AML_NODE_HANDLE)NewLpiPackageNode);\r | |
| 2023 | }\r | |
| 2024 | if (StringNode != NULL) {\r | |
| 2025 | AmlDeleteTree ((AML_NODE_HANDLE)StringNode);\r | |
| 2026 | }\r | |
| 2027 | if (IntegerNode != NULL) {\r | |
| 2028 | AmlDeleteTree ((AML_NODE_HANDLE)IntegerNode);\r | |
| 2029 | }\r | |
| 2030 | if (ResourceTemplateNode != NULL) {\r | |
| 2031 | AmlDeleteTree ((AML_NODE_HANDLE)ResourceTemplateNode);\r | |
| 2032 | }\r | |
| 2033 | \r | |
| 2034 | return Status;\r | |
| 2035 | }\r |