| 1 | /** @file\r |
| 2 | This library will parse the coreboot table in memory and extract those required\r |
| 3 | information.\r |
| 4 | \r |
| 5 | Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>\r |
| 6 | This program and the accompanying materials\r |
| 7 | are licensed and made available under the terms and conditions of the BSD License\r |
| 8 | which accompanies this distribution. The full text of the license may be found at\r |
| 9 | http://opensource.org/licenses/bsd-license.php\r |
| 10 | \r |
| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 13 | \r |
| 14 | **/\r |
| 15 | \r |
| 16 | #include <Uefi/UefiBaseType.h>\r |
| 17 | #include <Library/BaseLib.h>\r |
| 18 | #include <Library/BaseMemoryLib.h>\r |
| 19 | #include <Library/DebugLib.h>\r |
| 20 | #include <Library/PcdLib.h>\r |
| 21 | #include <Library/IoLib.h>\r |
| 22 | #include <Library/CbParseLib.h>\r |
| 23 | \r |
| 24 | #include <IndustryStandard/Acpi.h>\r |
| 25 | \r |
| 26 | #include "Coreboot.h"\r |
| 27 | \r |
| 28 | \r |
| 29 | /**\r |
| 30 | Convert a packed value from cbuint64 to a UINT64 value.\r |
| 31 | \r |
| 32 | @param val The pointer to packed data.\r |
| 33 | \r |
| 34 | @return the UNIT64 value after convertion.\r |
| 35 | \r |
| 36 | **/\r |
| 37 | UINT64\r |
| 38 | cb_unpack64 (\r |
| 39 | IN struct cbuint64 val\r |
| 40 | )\r |
| 41 | {\r |
| 42 | return LShiftU64 (val.hi, 32) | val.lo;\r |
| 43 | }\r |
| 44 | \r |
| 45 | \r |
| 46 | /**\r |
| 47 | Returns the sum of all elements in a buffer of 16-bit values. During\r |
| 48 | calculation, the carry bits are also been added.\r |
| 49 | \r |
| 50 | @param Buffer The pointer to the buffer to carry out the sum operation.\r |
| 51 | @param Length The size, in bytes, of Buffer.\r |
| 52 | \r |
| 53 | @return Sum The sum of Buffer with carry bits included during additions.\r |
| 54 | \r |
| 55 | **/\r |
| 56 | UINT16\r |
| 57 | CbCheckSum16 (\r |
| 58 | IN UINT16 *Buffer,\r |
| 59 | IN UINTN Length\r |
| 60 | )\r |
| 61 | {\r |
| 62 | UINT32 Sum, TmpValue;\r |
| 63 | UINTN Idx;\r |
| 64 | UINT8 *TmpPtr;\r |
| 65 | \r |
| 66 | Sum = 0;\r |
| 67 | TmpPtr = (UINT8 *)Buffer;\r |
| 68 | for(Idx = 0; Idx < Length; Idx++) {\r |
| 69 | TmpValue = TmpPtr[Idx];\r |
| 70 | if (Idx % 2 == 1) {\r |
| 71 | TmpValue <<= 8;\r |
| 72 | }\r |
| 73 | \r |
| 74 | Sum += TmpValue;\r |
| 75 | \r |
| 76 | // Wrap\r |
| 77 | if (Sum >= 0x10000) {\r |
| 78 | Sum = (Sum + (Sum >> 16)) & 0xFFFF;\r |
| 79 | }\r |
| 80 | }\r |
| 81 | \r |
| 82 | return (UINT16)((~Sum) & 0xFFFF);\r |
| 83 | }\r |
| 84 | \r |
| 85 | \r |
| 86 | /**\r |
| 87 | Find coreboot record with given Tag from the memory Start in 4096\r |
| 88 | bytes range.\r |
| 89 | \r |
| 90 | @param Start The start memory to be searched in\r |
| 91 | @param Tag The tag id to be found\r |
| 92 | \r |
| 93 | @retval NULL The Tag is not found.\r |
| 94 | @retval Others The poiter to the record found.\r |
| 95 | \r |
| 96 | **/\r |
| 97 | VOID *\r |
| 98 | EFIAPI\r |
| 99 | FindCbTag (\r |
| 100 | IN VOID *Start,\r |
| 101 | IN UINT32 Tag\r |
| 102 | )\r |
| 103 | {\r |
| 104 | struct cb_header *Header;\r |
| 105 | struct cb_record *Record;\r |
| 106 | UINT8 *TmpPtr;\r |
| 107 | UINT8 *TagPtr;\r |
| 108 | UINTN Idx;\r |
| 109 | UINT16 CheckSum;\r |
| 110 | \r |
| 111 | Header = NULL;\r |
| 112 | TmpPtr = (UINT8 *)Start;\r |
| 113 | for (Idx = 0; Idx < 4096; Idx += 16, TmpPtr += 16) {\r |
| 114 | Header = (struct cb_header *)TmpPtr;\r |
| 115 | if (Header->signature == CB_HEADER_SIGNATURE) {\r |
| 116 | break;\r |
| 117 | }\r |
| 118 | }\r |
| 119 | \r |
| 120 | if (Idx >= 4096) {\r |
| 121 | return NULL;\r |
| 122 | }\r |
| 123 | \r |
| 124 | if ((Header == NULL) || (Header->table_bytes == 0)) {\r |
| 125 | return NULL;\r |
| 126 | }\r |
| 127 | \r |
| 128 | //\r |
| 129 | // Check the checksum of the coreboot table header\r |
| 130 | //\r |
| 131 | CheckSum = CbCheckSum16 ((UINT16 *)Header, sizeof (*Header));\r |
| 132 | if (CheckSum != 0) {\r |
| 133 | DEBUG ((EFI_D_ERROR, "Invalid coreboot table header checksum\n"));\r |
| 134 | return NULL;\r |
| 135 | }\r |
| 136 | \r |
| 137 | CheckSum = CbCheckSum16 ((UINT16 *)(TmpPtr + sizeof (*Header)), Header->table_bytes);\r |
| 138 | if (CheckSum != Header->table_checksum) {\r |
| 139 | DEBUG ((EFI_D_ERROR, "Incorrect checksum of all the coreboot table entries\n"));\r |
| 140 | return NULL;\r |
| 141 | }\r |
| 142 | \r |
| 143 | TagPtr = NULL;\r |
| 144 | TmpPtr += Header->header_bytes;\r |
| 145 | for (Idx = 0; Idx < Header->table_entries; Idx++) {\r |
| 146 | Record = (struct cb_record *)TmpPtr;\r |
| 147 | if (Record->tag == CB_TAG_FORWARD) {\r |
| 148 | TmpPtr = (VOID *)(UINTN)((struct cb_forward *)(UINTN)Record)->forward;\r |
| 149 | if (Tag == CB_TAG_FORWARD) {\r |
| 150 | return TmpPtr;\r |
| 151 | } else {\r |
| 152 | return FindCbTag (TmpPtr, Tag);\r |
| 153 | }\r |
| 154 | }\r |
| 155 | if (Record->tag == Tag) {\r |
| 156 | TagPtr = TmpPtr;\r |
| 157 | break;\r |
| 158 | }\r |
| 159 | TmpPtr += Record->size;\r |
| 160 | }\r |
| 161 | \r |
| 162 | return TagPtr;\r |
| 163 | }\r |
| 164 | \r |
| 165 | \r |
| 166 | /**\r |
| 167 | Find the given table with TableId from the given coreboot memory Root.\r |
| 168 | \r |
| 169 | @param Root The coreboot memory table to be searched in\r |
| 170 | @param TableId Table id to be found\r |
| 171 | @param pMemTable To save the base address of the memory table found\r |
| 172 | @param pMemTableSize To save the size of memory table found\r |
| 173 | \r |
| 174 | @retval RETURN_SUCCESS Successfully find out the memory table.\r |
| 175 | @retval RETURN_INVALID_PARAMETER Invalid input parameters.\r |
| 176 | @retval RETURN_NOT_FOUND Failed to find the memory table.\r |
| 177 | \r |
| 178 | **/\r |
| 179 | RETURN_STATUS\r |
| 180 | EFIAPI\r |
| 181 | FindCbMemTable (\r |
| 182 | IN struct cbmem_root *Root,\r |
| 183 | IN UINT32 TableId,\r |
| 184 | OUT VOID **pMemTable,\r |
| 185 | OUT UINT32 *pMemTableSize\r |
| 186 | )\r |
| 187 | {\r |
| 188 | UINTN Idx;\r |
| 189 | BOOLEAN IsImdEntry;\r |
| 190 | struct cbmem_entry *Entries;\r |
| 191 | \r |
| 192 | if ((Root == NULL) || (pMemTable == NULL)) {\r |
| 193 | return RETURN_INVALID_PARAMETER;\r |
| 194 | }\r |
| 195 | //\r |
| 196 | // Check if the entry is CBMEM or IMD\r |
| 197 | // and handle them separately\r |
| 198 | //\r |
| 199 | Entries = Root->entries;\r |
| 200 | if (Entries[0].magic == CBMEM_ENTRY_MAGIC) {\r |
| 201 | IsImdEntry = FALSE;\r |
| 202 | } else {\r |
| 203 | Entries = (struct cbmem_entry *)((struct imd_root *)Root)->entries;\r |
| 204 | if (Entries[0].magic == IMD_ENTRY_MAGIC) {\r |
| 205 | IsImdEntry = TRUE;\r |
| 206 | } else {\r |
| 207 | return RETURN_NOT_FOUND;\r |
| 208 | }\r |
| 209 | }\r |
| 210 | \r |
| 211 | for (Idx = 0; Idx < Root->num_entries; Idx++) {\r |
| 212 | if (Entries[Idx].id == TableId) {\r |
| 213 | if (IsImdEntry) {\r |
| 214 | *pMemTable = (VOID *) ((UINTN)Entries[Idx].start + (UINTN)Root);\r |
| 215 | } else {\r |
| 216 | *pMemTable = (VOID *) (UINTN)Entries[Idx].start;\r |
| 217 | }\r |
| 218 | if (pMemTableSize != NULL) {\r |
| 219 | *pMemTableSize = Entries[Idx].size;\r |
| 220 | }\r |
| 221 | \r |
| 222 | DEBUG ((EFI_D_INFO, "Find CbMemTable Id 0x%x, base %p, size 0x%x\n",\r |
| 223 | TableId, *pMemTable, Entries[Idx].size));\r |
| 224 | return RETURN_SUCCESS;\r |
| 225 | }\r |
| 226 | }\r |
| 227 | \r |
| 228 | return RETURN_NOT_FOUND;\r |
| 229 | }\r |
| 230 | \r |
| 231 | \r |
| 232 | /**\r |
| 233 | Acquire the memory information from the coreboot table in memory.\r |
| 234 | \r |
| 235 | @param MemInfoCallback The callback routine\r |
| 236 | @param pParam Pointer to the callback routine parameter\r |
| 237 | \r |
| 238 | @retval RETURN_SUCCESS Successfully find out the memory information.\r |
| 239 | @retval RETURN_NOT_FOUND Failed to find the memory information.\r |
| 240 | \r |
| 241 | **/\r |
| 242 | RETURN_STATUS\r |
| 243 | EFIAPI\r |
| 244 | CbParseMemoryInfo (\r |
| 245 | IN CB_MEM_INFO_CALLBACK MemInfoCallback,\r |
| 246 | IN VOID *pParam\r |
| 247 | )\r |
| 248 | {\r |
| 249 | struct cb_memory *rec;\r |
| 250 | struct cb_memory_range *Range;\r |
| 251 | UINT64 Start;\r |
| 252 | UINT64 Size;\r |
| 253 | UINTN Index;\r |
| 254 | \r |
| 255 | //\r |
| 256 | // Get the coreboot memory table\r |
| 257 | //\r |
| 258 | rec = (struct cb_memory *)FindCbTag (0, CB_TAG_MEMORY);\r |
| 259 | if (rec == NULL) {\r |
| 260 | rec = (struct cb_memory *)FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_MEMORY);\r |
| 261 | }\r |
| 262 | \r |
| 263 | if (rec == NULL) {\r |
| 264 | return RETURN_NOT_FOUND;\r |
| 265 | }\r |
| 266 | \r |
| 267 | for (Index = 0; Index < MEM_RANGE_COUNT(rec); Index++) {\r |
| 268 | Range = MEM_RANGE_PTR(rec, Index);\r |
| 269 | Start = cb_unpack64(Range->start);\r |
| 270 | Size = cb_unpack64(Range->size);\r |
| 271 | DEBUG ((EFI_D_INFO, "%d. %016lx - %016lx [%02x]\n",\r |
| 272 | Index, Start, Start + Size - 1, Range->type));\r |
| 273 | \r |
| 274 | MemInfoCallback (Start, Size, Range->type, pParam);\r |
| 275 | }\r |
| 276 | \r |
| 277 | return RETURN_SUCCESS;\r |
| 278 | }\r |
| 279 | \r |
| 280 | \r |
| 281 | /**\r |
| 282 | Acquire the coreboot memory table with the given table id\r |
| 283 | \r |
| 284 | @param TableId Table id to be searched\r |
| 285 | @param pMemTable Pointer to the base address of the memory table\r |
| 286 | @param pMemTableSize Pointer to the size of the memory table\r |
| 287 | \r |
| 288 | @retval RETURN_SUCCESS Successfully find out the memory table.\r |
| 289 | @retval RETURN_INVALID_PARAMETER Invalid input parameters.\r |
| 290 | @retval RETURN_NOT_FOUND Failed to find the memory table.\r |
| 291 | \r |
| 292 | **/\r |
| 293 | RETURN_STATUS\r |
| 294 | EFIAPI\r |
| 295 | CbParseCbMemTable (\r |
| 296 | IN UINT32 TableId,\r |
| 297 | OUT VOID **pMemTable,\r |
| 298 | OUT UINT32 *pMemTableSize\r |
| 299 | )\r |
| 300 | {\r |
| 301 | struct cb_memory *rec;\r |
| 302 | struct cb_memory_range *Range;\r |
| 303 | UINT64 Start;\r |
| 304 | UINT64 Size;\r |
| 305 | UINTN Index;\r |
| 306 | \r |
| 307 | if (pMemTable == NULL) {\r |
| 308 | return RETURN_INVALID_PARAMETER;\r |
| 309 | }\r |
| 310 | *pMemTable = NULL;\r |
| 311 | \r |
| 312 | //\r |
| 313 | // Get the coreboot memory table\r |
| 314 | //\r |
| 315 | rec = (struct cb_memory *)FindCbTag (0, CB_TAG_MEMORY);\r |
| 316 | if (rec == NULL) {\r |
| 317 | rec = (struct cb_memory *)FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_MEMORY);\r |
| 318 | }\r |
| 319 | \r |
| 320 | if (rec == NULL) {\r |
| 321 | return RETURN_NOT_FOUND;\r |
| 322 | }\r |
| 323 | \r |
| 324 | for (Index = 0; Index < MEM_RANGE_COUNT(rec); Index++) {\r |
| 325 | Range = MEM_RANGE_PTR(rec, Index);\r |
| 326 | Start = cb_unpack64(Range->start);\r |
| 327 | Size = cb_unpack64(Range->size);\r |
| 328 | \r |
| 329 | if ((Range->type == CB_MEM_TABLE) && (Start > 0x1000)) {\r |
| 330 | if (FindCbMemTable ((struct cbmem_root *)(UINTN)(Start + Size - DYN_CBMEM_ALIGN_SIZE), TableId, pMemTable, pMemTableSize) == RETURN_SUCCESS)\r |
| 331 | return RETURN_SUCCESS;\r |
| 332 | }\r |
| 333 | }\r |
| 334 | \r |
| 335 | return RETURN_NOT_FOUND;\r |
| 336 | }\r |
| 337 | \r |
| 338 | \r |
| 339 | /**\r |
| 340 | Acquire the acpi table from coreboot\r |
| 341 | \r |
| 342 | @param pMemTable Pointer to the base address of the memory table\r |
| 343 | @param pMemTableSize Pointer to the size of the memory table\r |
| 344 | \r |
| 345 | @retval RETURN_SUCCESS Successfully find out the memory table.\r |
| 346 | @retval RETURN_INVALID_PARAMETER Invalid input parameters.\r |
| 347 | @retval RETURN_NOT_FOUND Failed to find the memory table.\r |
| 348 | \r |
| 349 | **/\r |
| 350 | RETURN_STATUS\r |
| 351 | EFIAPI\r |
| 352 | CbParseAcpiTable (\r |
| 353 | OUT VOID **pMemTable,\r |
| 354 | OUT UINT32 *pMemTableSize\r |
| 355 | )\r |
| 356 | {\r |
| 357 | return CbParseCbMemTable (SIGNATURE_32 ('I', 'P', 'C', 'A'), pMemTable, pMemTableSize);\r |
| 358 | }\r |
| 359 | \r |
| 360 | /**\r |
| 361 | Acquire the smbios table from coreboot\r |
| 362 | \r |
| 363 | @param pMemTable Pointer to the base address of the memory table\r |
| 364 | @param pMemTableSize Pointer to the size of the memory table\r |
| 365 | \r |
| 366 | @retval RETURN_SUCCESS Successfully find out the memory table.\r |
| 367 | @retval RETURN_INVALID_PARAMETER Invalid input parameters.\r |
| 368 | @retval RETURN_NOT_FOUND Failed to find the memory table.\r |
| 369 | \r |
| 370 | **/\r |
| 371 | RETURN_STATUS\r |
| 372 | EFIAPI\r |
| 373 | CbParseSmbiosTable (\r |
| 374 | OUT VOID **pMemTable,\r |
| 375 | OUT UINT32 *pMemTableSize\r |
| 376 | )\r |
| 377 | {\r |
| 378 | return CbParseCbMemTable (SIGNATURE_32 ('T', 'B', 'M', 'S'), pMemTable, pMemTableSize);\r |
| 379 | }\r |
| 380 | \r |
| 381 | /**\r |
| 382 | Find the required fadt information\r |
| 383 | \r |
| 384 | @param pPmCtrlReg Pointer to the address of power management control register\r |
| 385 | @param pPmTimerReg Pointer to the address of power management timer register\r |
| 386 | @param pResetReg Pointer to the address of system reset register\r |
| 387 | @param pResetValue Pointer to the value to be writen to the system reset register\r |
| 388 | @param pPmEvtReg Pointer to the address of power management event register\r |
| 389 | @param pPmGpeEnReg Pointer to the address of power management GPE enable register\r |
| 390 | \r |
| 391 | @retval RETURN_SUCCESS Successfully find out all the required fadt information.\r |
| 392 | @retval RETURN_NOT_FOUND Failed to find the fadt table.\r |
| 393 | \r |
| 394 | **/\r |
| 395 | RETURN_STATUS\r |
| 396 | EFIAPI\r |
| 397 | CbParseFadtInfo (\r |
| 398 | OUT UINTN *pPmCtrlReg,\r |
| 399 | OUT UINTN *pPmTimerReg,\r |
| 400 | OUT UINTN *pResetReg,\r |
| 401 | OUT UINTN *pResetValue,\r |
| 402 | OUT UINTN *pPmEvtReg,\r |
| 403 | OUT UINTN *pPmGpeEnReg\r |
| 404 | )\r |
| 405 | {\r |
| 406 | EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp;\r |
| 407 | EFI_ACPI_DESCRIPTION_HEADER *Rsdt;\r |
| 408 | UINT32 *Entry32;\r |
| 409 | UINTN Entry32Num;\r |
| 410 | EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt;\r |
| 411 | EFI_ACPI_DESCRIPTION_HEADER *Xsdt;\r |
| 412 | UINT64 *Entry64;\r |
| 413 | UINTN Entry64Num;\r |
| 414 | UINTN Idx;\r |
| 415 | RETURN_STATUS Status;\r |
| 416 | \r |
| 417 | Rsdp = NULL;\r |
| 418 | Status = RETURN_SUCCESS;\r |
| 419 | \r |
| 420 | Status = CbParseAcpiTable ((VOID **)&Rsdp, NULL);\r |
| 421 | if (RETURN_ERROR(Status)) {\r |
| 422 | return Status;\r |
| 423 | }\r |
| 424 | \r |
| 425 | if (Rsdp == NULL) {\r |
| 426 | return RETURN_NOT_FOUND;\r |
| 427 | }\r |
| 428 | \r |
| 429 | DEBUG ((EFI_D_INFO, "Find Rsdp at %p\n", Rsdp));\r |
| 430 | DEBUG ((EFI_D_INFO, "Find Rsdt 0x%x, Xsdt 0x%lx\n", Rsdp->RsdtAddress, Rsdp->XsdtAddress));\r |
| 431 | \r |
| 432 | //\r |
| 433 | // Search Rsdt First\r |
| 434 | //\r |
| 435 | Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)(Rsdp->RsdtAddress);\r |
| 436 | if (Rsdt != NULL) {\r |
| 437 | Entry32 = (UINT32 *)(Rsdt + 1);\r |
| 438 | Entry32Num = (Rsdt->Length - sizeof(EFI_ACPI_DESCRIPTION_HEADER)) >> 2;\r |
| 439 | for (Idx = 0; Idx < Entry32Num; Idx++) {\r |
| 440 | if (*(UINT32 *)(UINTN)(Entry32[Idx]) == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {\r |
| 441 | Fadt = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)(UINTN)(Entry32[Idx]);\r |
| 442 | if (pPmCtrlReg != NULL) {\r |
| 443 | *pPmCtrlReg = Fadt->Pm1aCntBlk;\r |
| 444 | }\r |
| 445 | DEBUG ((EFI_D_INFO, "PmCtrl Reg 0x%x\n", Fadt->Pm1aCntBlk));\r |
| 446 | \r |
| 447 | if (pPmTimerReg != NULL) {\r |
| 448 | *pPmTimerReg = Fadt->PmTmrBlk;\r |
| 449 | }\r |
| 450 | DEBUG ((EFI_D_INFO, "PmTimer Reg 0x%x\n", Fadt->PmTmrBlk));\r |
| 451 | \r |
| 452 | if (pResetReg != NULL) {\r |
| 453 | *pResetReg = (UINTN)Fadt->ResetReg.Address;\r |
| 454 | }\r |
| 455 | DEBUG ((EFI_D_INFO, "Reset Reg 0x%lx\n", Fadt->ResetReg.Address));\r |
| 456 | \r |
| 457 | if (pResetValue != NULL) {\r |
| 458 | *pResetValue = Fadt->ResetValue;\r |
| 459 | }\r |
| 460 | DEBUG ((EFI_D_INFO, "Reset Value 0x%x\n", Fadt->ResetValue));\r |
| 461 | \r |
| 462 | if (pPmEvtReg != NULL) {\r |
| 463 | *pPmEvtReg = Fadt->Pm1aEvtBlk;\r |
| 464 | DEBUG ((EFI_D_INFO, "PmEvt Reg 0x%x\n", Fadt->Pm1aEvtBlk));\r |
| 465 | }\r |
| 466 | \r |
| 467 | if (pPmGpeEnReg != NULL) {\r |
| 468 | *pPmGpeEnReg = Fadt->Gpe0Blk + Fadt->Gpe0BlkLen / 2;\r |
| 469 | DEBUG ((EFI_D_INFO, "PmGpeEn Reg 0x%x\n", *pPmGpeEnReg));\r |
| 470 | }\r |
| 471 | \r |
| 472 | //\r |
| 473 | // Verify values for proper operation\r |
| 474 | //\r |
| 475 | ASSERT(Fadt->Pm1aCntBlk != 0);\r |
| 476 | ASSERT(Fadt->PmTmrBlk != 0);\r |
| 477 | ASSERT(Fadt->ResetReg.Address != 0);\r |
| 478 | ASSERT(Fadt->Pm1aEvtBlk != 0);\r |
| 479 | ASSERT(Fadt->Gpe0Blk != 0);\r |
| 480 | \r |
| 481 | DEBUG_CODE_BEGIN ();\r |
| 482 | BOOLEAN SciEnabled;\r |
| 483 | \r |
| 484 | //\r |
| 485 | // Check the consistency of SCI enabling\r |
| 486 | //\r |
| 487 | \r |
| 488 | //\r |
| 489 | // Get SCI_EN value\r |
| 490 | //\r |
| 491 | if (Fadt->Pm1CntLen == 4) {\r |
| 492 | SciEnabled = (IoRead32 (Fadt->Pm1aCntBlk) & BIT0)? TRUE : FALSE;\r |
| 493 | } else {\r |
| 494 | //\r |
| 495 | // if (Pm1CntLen == 2), use 16 bit IO read;\r |
| 496 | // if (Pm1CntLen != 2 && Pm1CntLen != 4), use 16 bit IO read as a fallback\r |
| 497 | //\r |
| 498 | SciEnabled = (IoRead16 (Fadt->Pm1aCntBlk) & BIT0)? TRUE : FALSE;\r |
| 499 | }\r |
| 500 | \r |
| 501 | if (!(Fadt->Flags & EFI_ACPI_5_0_HW_REDUCED_ACPI) &&\r |
| 502 | (Fadt->SmiCmd == 0) &&\r |
| 503 | !SciEnabled) {\r |
| 504 | //\r |
| 505 | // The ACPI enabling status is inconsistent: SCI is not enabled but ACPI\r |
| 506 | // table does not provide a means to enable it through FADT->SmiCmd\r |
| 507 | //\r |
| 508 | DEBUG ((DEBUG_ERROR, "ERROR: The ACPI enabling status is inconsistent: SCI is not"\r |
| 509 | " enabled but the ACPI table does not provide a means to enable it through FADT->SmiCmd."\r |
| 510 | " This may cause issues in OS.\n"));\r |
| 511 | ASSERT (FALSE);\r |
| 512 | }\r |
| 513 | DEBUG_CODE_END ();\r |
| 514 | return RETURN_SUCCESS;\r |
| 515 | }\r |
| 516 | }\r |
| 517 | }\r |
| 518 | \r |
| 519 | //\r |
| 520 | // Search Xsdt Second\r |
| 521 | //\r |
| 522 | Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)(Rsdp->XsdtAddress);\r |
| 523 | if (Xsdt != NULL) {\r |
| 524 | Entry64 = (UINT64 *)(Xsdt + 1);\r |
| 525 | Entry64Num = (Xsdt->Length - sizeof(EFI_ACPI_DESCRIPTION_HEADER)) >> 3;\r |
| 526 | for (Idx = 0; Idx < Entry64Num; Idx++) {\r |
| 527 | if (*(UINT32 *)(UINTN)(Entry64[Idx]) == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {\r |
| 528 | Fadt = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)(UINTN)(Entry64[Idx]);\r |
| 529 | if (pPmCtrlReg)\r |
| 530 | *pPmCtrlReg = Fadt->Pm1aCntBlk;\r |
| 531 | DEBUG ((EFI_D_ERROR, "PmCtrl Reg 0x%x\n", Fadt->Pm1aCntBlk));\r |
| 532 | \r |
| 533 | if (pPmTimerReg)\r |
| 534 | *pPmTimerReg = Fadt->PmTmrBlk;\r |
| 535 | DEBUG ((EFI_D_ERROR, "PmTimer Reg 0x%x\n", Fadt->PmTmrBlk));\r |
| 536 | \r |
| 537 | if (pResetReg)\r |
| 538 | *pResetReg = (UINTN)Fadt->ResetReg.Address;\r |
| 539 | DEBUG ((EFI_D_ERROR, "Reset Reg 0x%lx\n", Fadt->ResetReg.Address));\r |
| 540 | \r |
| 541 | if (pResetValue)\r |
| 542 | *pResetValue = Fadt->ResetValue;\r |
| 543 | DEBUG ((EFI_D_ERROR, "Reset Value 0x%x\n", Fadt->ResetValue));\r |
| 544 | \r |
| 545 | if (pPmEvtReg != NULL) {\r |
| 546 | *pPmEvtReg = Fadt->Pm1aEvtBlk;\r |
| 547 | DEBUG ((EFI_D_INFO, "PmEvt Reg 0x%x\n", Fadt->Pm1aEvtBlk));\r |
| 548 | }\r |
| 549 | \r |
| 550 | if (pPmGpeEnReg != NULL) {\r |
| 551 | *pPmGpeEnReg = Fadt->Gpe0Blk + Fadt->Gpe0BlkLen / 2;\r |
| 552 | DEBUG ((EFI_D_INFO, "PmGpeEn Reg 0x%x\n", *pPmGpeEnReg));\r |
| 553 | }\r |
| 554 | return RETURN_SUCCESS;\r |
| 555 | }\r |
| 556 | }\r |
| 557 | }\r |
| 558 | \r |
| 559 | return RETURN_NOT_FOUND;\r |
| 560 | }\r |
| 561 | \r |
| 562 | /**\r |
| 563 | Find the serial port information\r |
| 564 | \r |
| 565 | @param pRegBase Pointer to the base address of serial port registers\r |
| 566 | @param pRegAccessType Pointer to the access type of serial port registers\r |
| 567 | @param pRegWidth Pointer to the register width in bytes\r |
| 568 | @param pBaudrate Pointer to the serial port baudrate\r |
| 569 | @param pInputHertz Pointer to the input clock frequency\r |
| 570 | @param pUartPciAddr Pointer to the UART PCI bus, dev and func address\r |
| 571 | \r |
| 572 | @retval RETURN_SUCCESS Successfully find the serial port information.\r |
| 573 | @retval RETURN_NOT_FOUND Failed to find the serial port information .\r |
| 574 | \r |
| 575 | **/\r |
| 576 | RETURN_STATUS\r |
| 577 | EFIAPI\r |
| 578 | CbParseSerialInfo (\r |
| 579 | OUT UINT32 *pRegBase,\r |
| 580 | OUT UINT32 *pRegAccessType,\r |
| 581 | OUT UINT32 *pRegWidth,\r |
| 582 | OUT UINT32 *pBaudrate,\r |
| 583 | OUT UINT32 *pInputHertz,\r |
| 584 | OUT UINT32 *pUartPciAddr\r |
| 585 | )\r |
| 586 | {\r |
| 587 | struct cb_serial *CbSerial;\r |
| 588 | \r |
| 589 | CbSerial = FindCbTag (0, CB_TAG_SERIAL);\r |
| 590 | if (CbSerial == NULL) {\r |
| 591 | CbSerial = FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_SERIAL);\r |
| 592 | }\r |
| 593 | \r |
| 594 | if (CbSerial == NULL) {\r |
| 595 | return RETURN_NOT_FOUND;\r |
| 596 | }\r |
| 597 | \r |
| 598 | if (pRegBase != NULL) {\r |
| 599 | *pRegBase = CbSerial->baseaddr;\r |
| 600 | }\r |
| 601 | \r |
| 602 | if (pRegWidth != NULL) {\r |
| 603 | *pRegWidth = CbSerial->regwidth;\r |
| 604 | }\r |
| 605 | \r |
| 606 | if (pRegAccessType != NULL) {\r |
| 607 | *pRegAccessType = CbSerial->type;\r |
| 608 | }\r |
| 609 | \r |
| 610 | if (pBaudrate != NULL) {\r |
| 611 | *pBaudrate = CbSerial->baud;\r |
| 612 | }\r |
| 613 | \r |
| 614 | if (pInputHertz != NULL) {\r |
| 615 | *pInputHertz = CbSerial->input_hertz;\r |
| 616 | }\r |
| 617 | \r |
| 618 | if (pUartPciAddr != NULL) {\r |
| 619 | *pUartPciAddr = CbSerial->uart_pci_addr;\r |
| 620 | }\r |
| 621 | \r |
| 622 | return RETURN_SUCCESS;\r |
| 623 | }\r |
| 624 | \r |
| 625 | /**\r |
| 626 | Search for the coreboot table header\r |
| 627 | \r |
| 628 | @param Level Level of the search depth\r |
| 629 | @param HeaderPtr Pointer to the pointer of coreboot table header\r |
| 630 | \r |
| 631 | @retval RETURN_SUCCESS Successfully find the coreboot table header .\r |
| 632 | @retval RETURN_NOT_FOUND Failed to find the coreboot table header .\r |
| 633 | \r |
| 634 | **/\r |
| 635 | RETURN_STATUS\r |
| 636 | EFIAPI\r |
| 637 | CbParseGetCbHeader (\r |
| 638 | IN UINTN Level,\r |
| 639 | OUT VOID **HeaderPtr\r |
| 640 | )\r |
| 641 | {\r |
| 642 | UINTN Index;\r |
| 643 | VOID *TempPtr;\r |
| 644 | \r |
| 645 | if (HeaderPtr == NULL) {\r |
| 646 | return RETURN_NOT_FOUND;\r |
| 647 | }\r |
| 648 | \r |
| 649 | TempPtr = NULL;\r |
| 650 | for (Index = 0; Index < Level; Index++) {\r |
| 651 | TempPtr = FindCbTag (TempPtr, CB_TAG_FORWARD);\r |
| 652 | if (TempPtr == NULL) {\r |
| 653 | break;\r |
| 654 | }\r |
| 655 | }\r |
| 656 | \r |
| 657 | if ((Index >= Level) && (TempPtr != NULL)) {\r |
| 658 | *HeaderPtr = TempPtr;\r |
| 659 | return RETURN_SUCCESS;\r |
| 660 | }\r |
| 661 | \r |
| 662 | return RETURN_NOT_FOUND;\r |
| 663 | }\r |
| 664 | \r |
| 665 | /**\r |
| 666 | Find the video frame buffer information\r |
| 667 | \r |
| 668 | @param pFbInfo Pointer to the FRAME_BUFFER_INFO structure\r |
| 669 | \r |
| 670 | @retval RETURN_SUCCESS Successfully find the video frame buffer information.\r |
| 671 | @retval RETURN_NOT_FOUND Failed to find the video frame buffer information .\r |
| 672 | \r |
| 673 | **/\r |
| 674 | RETURN_STATUS\r |
| 675 | EFIAPI\r |
| 676 | CbParseFbInfo (\r |
| 677 | OUT FRAME_BUFFER_INFO *pFbInfo\r |
| 678 | )\r |
| 679 | {\r |
| 680 | struct cb_framebuffer *CbFbRec;\r |
| 681 | \r |
| 682 | if (pFbInfo == NULL) {\r |
| 683 | return RETURN_INVALID_PARAMETER;\r |
| 684 | }\r |
| 685 | \r |
| 686 | CbFbRec = FindCbTag (0, CB_TAG_FRAMEBUFFER);\r |
| 687 | if (CbFbRec == NULL) {\r |
| 688 | CbFbRec = FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_FRAMEBUFFER);\r |
| 689 | }\r |
| 690 | \r |
| 691 | if (CbFbRec == NULL) {\r |
| 692 | return RETURN_NOT_FOUND;\r |
| 693 | }\r |
| 694 | \r |
| 695 | DEBUG ((EFI_D_INFO, "Found coreboot video frame buffer information\n"));\r |
| 696 | DEBUG ((EFI_D_INFO, "physical_address: 0x%lx\n", CbFbRec->physical_address));\r |
| 697 | DEBUG ((EFI_D_INFO, "x_resolution: 0x%x\n", CbFbRec->x_resolution));\r |
| 698 | DEBUG ((EFI_D_INFO, "y_resolution: 0x%x\n", CbFbRec->y_resolution));\r |
| 699 | DEBUG ((EFI_D_INFO, "bits_per_pixel: 0x%x\n", CbFbRec->bits_per_pixel));\r |
| 700 | DEBUG ((EFI_D_INFO, "bytes_per_line: 0x%x\n", CbFbRec->bytes_per_line));\r |
| 701 | \r |
| 702 | DEBUG ((EFI_D_INFO, "red_mask_size: 0x%x\n", CbFbRec->red_mask_size));\r |
| 703 | DEBUG ((EFI_D_INFO, "red_mask_pos: 0x%x\n", CbFbRec->red_mask_pos));\r |
| 704 | DEBUG ((EFI_D_INFO, "green_mask_size: 0x%x\n", CbFbRec->green_mask_size));\r |
| 705 | DEBUG ((EFI_D_INFO, "green_mask_pos: 0x%x\n", CbFbRec->green_mask_pos));\r |
| 706 | DEBUG ((EFI_D_INFO, "blue_mask_size: 0x%x\n", CbFbRec->blue_mask_size));\r |
| 707 | DEBUG ((EFI_D_INFO, "blue_mask_pos: 0x%x\n", CbFbRec->blue_mask_pos));\r |
| 708 | DEBUG ((EFI_D_INFO, "reserved_mask_size: 0x%x\n", CbFbRec->reserved_mask_size));\r |
| 709 | DEBUG ((EFI_D_INFO, "reserved_mask_pos: 0x%x\n", CbFbRec->reserved_mask_pos));\r |
| 710 | \r |
| 711 | pFbInfo->LinearFrameBuffer = CbFbRec->physical_address;\r |
| 712 | pFbInfo->HorizontalResolution = CbFbRec->x_resolution;\r |
| 713 | pFbInfo->VerticalResolution = CbFbRec->y_resolution;\r |
| 714 | pFbInfo->BitsPerPixel = CbFbRec->bits_per_pixel;\r |
| 715 | pFbInfo->BytesPerScanLine = (UINT16)CbFbRec->bytes_per_line;\r |
| 716 | pFbInfo->Red.Mask = (1 << CbFbRec->red_mask_size) - 1;\r |
| 717 | pFbInfo->Red.Position = CbFbRec->red_mask_pos;\r |
| 718 | pFbInfo->Green.Mask = (1 << CbFbRec->green_mask_size) - 1;\r |
| 719 | pFbInfo->Green.Position = CbFbRec->green_mask_pos;\r |
| 720 | pFbInfo->Blue.Mask = (1 << CbFbRec->blue_mask_size) - 1;\r |
| 721 | pFbInfo->Blue.Position = CbFbRec->blue_mask_pos;\r |
| 722 | pFbInfo->Reserved.Mask = (1 << CbFbRec->reserved_mask_size) - 1;\r |
| 723 | pFbInfo->Reserved.Position = CbFbRec->reserved_mask_pos;\r |
| 724 | \r |
| 725 | return RETURN_SUCCESS;\r |
| 726 | }\r |
| 727 | \r |