+++ /dev/null
-/** @file\r
- This library will parse the coreboot table in memory and extract those required\r
- information.\r
-\r
- Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>\r
- SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-#include <Uefi/UefiBaseType.h>\r
-#include <Library/BaseLib.h>\r
-#include <Library/BaseMemoryLib.h>\r
-#include <Library/DebugLib.h>\r
-#include <Library/PcdLib.h>\r
-#include <Library/IoLib.h>\r
-#include <Library/CbParseLib.h>\r
-\r
-#include <IndustryStandard/Acpi.h>\r
-\r
-#include "Coreboot.h"\r
-\r
-\r
-/**\r
- Convert a packed value from cbuint64 to a UINT64 value.\r
-\r
- @param val The pointer to packed data.\r
-\r
- @return the UNIT64 value after conversion.\r
-\r
-**/\r
-UINT64\r
-cb_unpack64 (\r
- IN struct cbuint64 val\r
- )\r
-{\r
- return LShiftU64 (val.hi, 32) | val.lo;\r
-}\r
-\r
-\r
-/**\r
- Returns the sum of all elements in a buffer of 16-bit values. During\r
- calculation, the carry bits are also been added.\r
-\r
- @param Buffer The pointer to the buffer to carry out the sum operation.\r
- @param Length The size, in bytes, of Buffer.\r
-\r
- @return Sum The sum of Buffer with carry bits included during additions.\r
-\r
-**/\r
-UINT16\r
-CbCheckSum16 (\r
- IN UINT16 *Buffer,\r
- IN UINTN Length\r
- )\r
-{\r
- UINT32 Sum, TmpValue;\r
- UINTN Idx;\r
- UINT8 *TmpPtr;\r
-\r
- Sum = 0;\r
- TmpPtr = (UINT8 *)Buffer;\r
- for(Idx = 0; Idx < Length; Idx++) {\r
- TmpValue = TmpPtr[Idx];\r
- if (Idx % 2 == 1) {\r
- TmpValue <<= 8;\r
- }\r
-\r
- Sum += TmpValue;\r
-\r
- // Wrap\r
- if (Sum >= 0x10000) {\r
- Sum = (Sum + (Sum >> 16)) & 0xFFFF;\r
- }\r
- }\r
-\r
- return (UINT16)((~Sum) & 0xFFFF);\r
-}\r
-\r
-\r
-/**\r
- Find coreboot record with given Tag from the memory Start in 4096\r
- bytes range.\r
-\r
- @param Start The start memory to be searched in\r
- @param Tag The tag id to be found\r
-\r
- @retval NULL The Tag is not found.\r
- @retval Others The pointer to the record found.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-FindCbTag (\r
- IN VOID *Start,\r
- IN UINT32 Tag\r
- )\r
-{\r
- struct cb_header *Header;\r
- struct cb_record *Record;\r
- UINT8 *TmpPtr;\r
- UINT8 *TagPtr;\r
- UINTN Idx;\r
- UINT16 CheckSum;\r
-\r
- Header = NULL;\r
- TmpPtr = (UINT8 *)Start;\r
- for (Idx = 0; Idx < 4096; Idx += 16, TmpPtr += 16) {\r
- Header = (struct cb_header *)TmpPtr;\r
- if (Header->signature == CB_HEADER_SIGNATURE) {\r
- break;\r
- }\r
- }\r
-\r
- if (Idx >= 4096) {\r
- return NULL;\r
- }\r
-\r
- if ((Header == NULL) || (Header->table_bytes == 0)) {\r
- return NULL;\r
- }\r
-\r
- //\r
- // Check the checksum of the coreboot table header\r
- //\r
- CheckSum = CbCheckSum16 ((UINT16 *)Header, sizeof (*Header));\r
- if (CheckSum != 0) {\r
- DEBUG ((EFI_D_ERROR, "Invalid coreboot table header checksum\n"));\r
- return NULL;\r
- }\r
-\r
- CheckSum = CbCheckSum16 ((UINT16 *)(TmpPtr + sizeof (*Header)), Header->table_bytes);\r
- if (CheckSum != Header->table_checksum) {\r
- DEBUG ((EFI_D_ERROR, "Incorrect checksum of all the coreboot table entries\n"));\r
- return NULL;\r
- }\r
-\r
- TagPtr = NULL;\r
- TmpPtr += Header->header_bytes;\r
- for (Idx = 0; Idx < Header->table_entries; Idx++) {\r
- Record = (struct cb_record *)TmpPtr;\r
- if (Record->tag == CB_TAG_FORWARD) {\r
- TmpPtr = (VOID *)(UINTN)((struct cb_forward *)(UINTN)Record)->forward;\r
- if (Tag == CB_TAG_FORWARD) {\r
- return TmpPtr;\r
- } else {\r
- return FindCbTag (TmpPtr, Tag);\r
- }\r
- }\r
- if (Record->tag == Tag) {\r
- TagPtr = TmpPtr;\r
- break;\r
- }\r
- TmpPtr += Record->size;\r
- }\r
-\r
- return TagPtr;\r
-}\r
-\r
-\r
-/**\r
- Find the given table with TableId from the given coreboot memory Root.\r
-\r
- @param Root The coreboot memory table to be searched in\r
- @param TableId Table id to be found\r
- @param pMemTable To save the base address of the memory table found\r
- @param pMemTableSize To save the size of memory table found\r
-\r
- @retval RETURN_SUCCESS Successfully find out the memory table.\r
- @retval RETURN_INVALID_PARAMETER Invalid input parameters.\r
- @retval RETURN_NOT_FOUND Failed to find the memory table.\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-FindCbMemTable (\r
- IN struct cbmem_root *Root,\r
- IN UINT32 TableId,\r
- OUT VOID **pMemTable,\r
- OUT UINT32 *pMemTableSize\r
- )\r
-{\r
- UINTN Idx;\r
- BOOLEAN IsImdEntry;\r
- struct cbmem_entry *Entries;\r
-\r
- if ((Root == NULL) || (pMemTable == NULL)) {\r
- return RETURN_INVALID_PARAMETER;\r
- }\r
- //\r
- // Check if the entry is CBMEM or IMD\r
- // and handle them separately\r
- //\r
- Entries = Root->entries;\r
- if (Entries[0].magic == CBMEM_ENTRY_MAGIC) {\r
- IsImdEntry = FALSE;\r
- } else {\r
- Entries = (struct cbmem_entry *)((struct imd_root *)Root)->entries;\r
- if (Entries[0].magic == IMD_ENTRY_MAGIC) {\r
- IsImdEntry = TRUE;\r
- } else {\r
- return RETURN_NOT_FOUND;\r
- }\r
- }\r
-\r
- for (Idx = 0; Idx < Root->num_entries; Idx++) {\r
- if (Entries[Idx].id == TableId) {\r
- if (IsImdEntry) {\r
- *pMemTable = (VOID *) ((UINTN)Entries[Idx].start + (UINTN)Root);\r
- } else {\r
- *pMemTable = (VOID *) (UINTN)Entries[Idx].start;\r
- }\r
- if (pMemTableSize != NULL) {\r
- *pMemTableSize = Entries[Idx].size;\r
- }\r
-\r
- DEBUG ((EFI_D_INFO, "Find CbMemTable Id 0x%x, base %p, size 0x%x\n",\r
- TableId, *pMemTable, Entries[Idx].size));\r
- return RETURN_SUCCESS;\r
- }\r
- }\r
-\r
- return RETURN_NOT_FOUND;\r
-}\r
-\r
-\r
-/**\r
- Acquire the memory information from the coreboot table in memory.\r
-\r
- @param MemInfoCallback The callback routine\r
- @param pParam Pointer to the callback routine parameter\r
-\r
- @retval RETURN_SUCCESS Successfully find out the memory information.\r
- @retval RETURN_NOT_FOUND Failed to find the memory information.\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-CbParseMemoryInfo (\r
- IN CB_MEM_INFO_CALLBACK MemInfoCallback,\r
- IN VOID *pParam\r
- )\r
-{\r
- struct cb_memory *rec;\r
- struct cb_memory_range *Range;\r
- UINT64 Start;\r
- UINT64 Size;\r
- UINTN Index;\r
-\r
- //\r
- // Get the coreboot memory table\r
- //\r
- rec = (struct cb_memory *)FindCbTag (0, CB_TAG_MEMORY);\r
- if (rec == NULL) {\r
- rec = (struct cb_memory *)FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_MEMORY);\r
- }\r
-\r
- if (rec == NULL) {\r
- return RETURN_NOT_FOUND;\r
- }\r
-\r
- for (Index = 0; Index < MEM_RANGE_COUNT(rec); Index++) {\r
- Range = MEM_RANGE_PTR(rec, Index);\r
- Start = cb_unpack64(Range->start);\r
- Size = cb_unpack64(Range->size);\r
- DEBUG ((EFI_D_INFO, "%d. %016lx - %016lx [%02x]\n",\r
- Index, Start, Start + Size - 1, Range->type));\r
-\r
- MemInfoCallback (Start, Size, Range->type, pParam);\r
- }\r
-\r
- return RETURN_SUCCESS;\r
-}\r
-\r
-\r
-/**\r
- Acquire the coreboot memory table with the given table id\r
-\r
- @param TableId Table id to be searched\r
- @param pMemTable Pointer to the base address of the memory table\r
- @param pMemTableSize Pointer to the size of the memory table\r
-\r
- @retval RETURN_SUCCESS Successfully find out the memory table.\r
- @retval RETURN_INVALID_PARAMETER Invalid input parameters.\r
- @retval RETURN_NOT_FOUND Failed to find the memory table.\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-CbParseCbMemTable (\r
- IN UINT32 TableId,\r
- OUT VOID **pMemTable,\r
- OUT UINT32 *pMemTableSize\r
- )\r
-{\r
- struct cb_memory *rec;\r
- struct cb_memory_range *Range;\r
- UINT64 Start;\r
- UINT64 Size;\r
- UINTN Index;\r
-\r
- if (pMemTable == NULL) {\r
- return RETURN_INVALID_PARAMETER;\r
- }\r
- *pMemTable = NULL;\r
-\r
- //\r
- // Get the coreboot memory table\r
- //\r
- rec = (struct cb_memory *)FindCbTag (0, CB_TAG_MEMORY);\r
- if (rec == NULL) {\r
- rec = (struct cb_memory *)FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_MEMORY);\r
- }\r
-\r
- if (rec == NULL) {\r
- return RETURN_NOT_FOUND;\r
- }\r
-\r
- for (Index = 0; Index < MEM_RANGE_COUNT(rec); Index++) {\r
- Range = MEM_RANGE_PTR(rec, Index);\r
- Start = cb_unpack64(Range->start);\r
- Size = cb_unpack64(Range->size);\r
-\r
- if ((Range->type == CB_MEM_TABLE) && (Start > 0x1000)) {\r
- if (FindCbMemTable ((struct cbmem_root *)(UINTN)(Start + Size - DYN_CBMEM_ALIGN_SIZE), TableId, pMemTable, pMemTableSize) == RETURN_SUCCESS)\r
- return RETURN_SUCCESS;\r
- }\r
- }\r
-\r
- return RETURN_NOT_FOUND;\r
-}\r
-\r
-\r
-/**\r
- Acquire the acpi table from coreboot\r
-\r
- @param pMemTable Pointer to the base address of the memory table\r
- @param pMemTableSize Pointer to the size of the memory table\r
-\r
- @retval RETURN_SUCCESS Successfully find out the memory table.\r
- @retval RETURN_INVALID_PARAMETER Invalid input parameters.\r
- @retval RETURN_NOT_FOUND Failed to find the memory table.\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-CbParseAcpiTable (\r
- OUT VOID **pMemTable,\r
- OUT UINT32 *pMemTableSize\r
- )\r
-{\r
- return CbParseCbMemTable (SIGNATURE_32 ('I', 'P', 'C', 'A'), pMemTable, pMemTableSize);\r
-}\r
-\r
-/**\r
- Acquire the smbios table from coreboot\r
-\r
- @param pMemTable Pointer to the base address of the memory table\r
- @param pMemTableSize Pointer to the size of the memory table\r
-\r
- @retval RETURN_SUCCESS Successfully find out the memory table.\r
- @retval RETURN_INVALID_PARAMETER Invalid input parameters.\r
- @retval RETURN_NOT_FOUND Failed to find the memory table.\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-CbParseSmbiosTable (\r
- OUT VOID **pMemTable,\r
- OUT UINT32 *pMemTableSize\r
- )\r
-{\r
- return CbParseCbMemTable (SIGNATURE_32 ('T', 'B', 'M', 'S'), pMemTable, pMemTableSize);\r
-}\r
-\r
-/**\r
- Find the required fadt information\r
-\r
- @param pPmCtrlReg Pointer to the address of power management control register\r
- @param pPmTimerReg Pointer to the address of power management timer register\r
- @param pResetReg Pointer to the address of system reset register\r
- @param pResetValue Pointer to the value to be written to the system reset register\r
- @param pPmEvtReg Pointer to the address of power management event register\r
- @param pPmGpeEnReg Pointer to the address of power management GPE enable register\r
-\r
- @retval RETURN_SUCCESS Successfully find out all the required fadt information.\r
- @retval RETURN_NOT_FOUND Failed to find the fadt table.\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-CbParseFadtInfo (\r
- OUT UINTN *pPmCtrlReg,\r
- OUT UINTN *pPmTimerReg,\r
- OUT UINTN *pResetReg,\r
- OUT UINTN *pResetValue,\r
- OUT UINTN *pPmEvtReg,\r
- OUT UINTN *pPmGpeEnReg\r
- )\r
-{\r
- EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp;\r
- EFI_ACPI_DESCRIPTION_HEADER *Rsdt;\r
- UINT32 *Entry32;\r
- UINTN Entry32Num;\r
- EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt;\r
- EFI_ACPI_DESCRIPTION_HEADER *Xsdt;\r
- UINT64 *Entry64;\r
- UINTN Entry64Num;\r
- UINTN Idx;\r
- RETURN_STATUS Status;\r
-\r
- Rsdp = NULL;\r
- Status = RETURN_SUCCESS;\r
-\r
- Status = CbParseAcpiTable ((VOID **)&Rsdp, NULL);\r
- if (RETURN_ERROR(Status)) {\r
- return Status;\r
- }\r
-\r
- if (Rsdp == NULL) {\r
- return RETURN_NOT_FOUND;\r
- }\r
-\r
- DEBUG ((EFI_D_INFO, "Find Rsdp at %p\n", Rsdp));\r
- DEBUG ((EFI_D_INFO, "Find Rsdt 0x%x, Xsdt 0x%lx\n", Rsdp->RsdtAddress, Rsdp->XsdtAddress));\r
-\r
- //\r
- // Search Rsdt First\r
- //\r
- Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)(Rsdp->RsdtAddress);\r
- if (Rsdt != NULL) {\r
- Entry32 = (UINT32 *)(Rsdt + 1);\r
- Entry32Num = (Rsdt->Length - sizeof(EFI_ACPI_DESCRIPTION_HEADER)) >> 2;\r
- for (Idx = 0; Idx < Entry32Num; Idx++) {\r
- if (*(UINT32 *)(UINTN)(Entry32[Idx]) == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {\r
- Fadt = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)(UINTN)(Entry32[Idx]);\r
- if (pPmCtrlReg != NULL) {\r
- *pPmCtrlReg = Fadt->Pm1aCntBlk;\r
- }\r
- DEBUG ((EFI_D_INFO, "PmCtrl Reg 0x%x\n", Fadt->Pm1aCntBlk));\r
-\r
- if (pPmTimerReg != NULL) {\r
- *pPmTimerReg = Fadt->PmTmrBlk;\r
- }\r
- DEBUG ((EFI_D_INFO, "PmTimer Reg 0x%x\n", Fadt->PmTmrBlk));\r
-\r
- if (pResetReg != NULL) {\r
- *pResetReg = (UINTN)Fadt->ResetReg.Address;\r
- }\r
- DEBUG ((EFI_D_INFO, "Reset Reg 0x%lx\n", Fadt->ResetReg.Address));\r
-\r
- if (pResetValue != NULL) {\r
- *pResetValue = Fadt->ResetValue;\r
- }\r
- DEBUG ((EFI_D_INFO, "Reset Value 0x%x\n", Fadt->ResetValue));\r
-\r
- if (pPmEvtReg != NULL) {\r
- *pPmEvtReg = Fadt->Pm1aEvtBlk;\r
- DEBUG ((EFI_D_INFO, "PmEvt Reg 0x%x\n", Fadt->Pm1aEvtBlk));\r
- }\r
-\r
- if (pPmGpeEnReg != NULL) {\r
- *pPmGpeEnReg = Fadt->Gpe0Blk + Fadt->Gpe0BlkLen / 2;\r
- DEBUG ((EFI_D_INFO, "PmGpeEn Reg 0x%x\n", *pPmGpeEnReg));\r
- }\r
-\r
- //\r
- // Verify values for proper operation\r
- //\r
- ASSERT(Fadt->Pm1aCntBlk != 0);\r
- ASSERT(Fadt->PmTmrBlk != 0);\r
- ASSERT(Fadt->ResetReg.Address != 0);\r
- ASSERT(Fadt->Pm1aEvtBlk != 0);\r
- ASSERT(Fadt->Gpe0Blk != 0);\r
-\r
- DEBUG_CODE_BEGIN ();\r
- BOOLEAN SciEnabled;\r
-\r
- //\r
- // Check the consistency of SCI enabling\r
- //\r
-\r
- //\r
- // Get SCI_EN value\r
- //\r
- if (Fadt->Pm1CntLen == 4) {\r
- SciEnabled = (IoRead32 (Fadt->Pm1aCntBlk) & BIT0)? TRUE : FALSE;\r
- } else {\r
- //\r
- // if (Pm1CntLen == 2), use 16 bit IO read;\r
- // if (Pm1CntLen != 2 && Pm1CntLen != 4), use 16 bit IO read as a fallback\r
- //\r
- SciEnabled = (IoRead16 (Fadt->Pm1aCntBlk) & BIT0)? TRUE : FALSE;\r
- }\r
-\r
- if (!(Fadt->Flags & EFI_ACPI_5_0_HW_REDUCED_ACPI) &&\r
- (Fadt->SmiCmd == 0) &&\r
- !SciEnabled) {\r
- //\r
- // The ACPI enabling status is inconsistent: SCI is not enabled but ACPI\r
- // table does not provide a means to enable it through FADT->SmiCmd\r
- //\r
- DEBUG ((DEBUG_ERROR, "ERROR: The ACPI enabling status is inconsistent: SCI is not"\r
- " enabled but the ACPI table does not provide a means to enable it through FADT->SmiCmd."\r
- " This may cause issues in OS.\n"));\r
- ASSERT (FALSE);\r
- }\r
- DEBUG_CODE_END ();\r
- return RETURN_SUCCESS;\r
- }\r
- }\r
- }\r
-\r
- //\r
- // Search Xsdt Second\r
- //\r
- Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)(Rsdp->XsdtAddress);\r
- if (Xsdt != NULL) {\r
- Entry64 = (UINT64 *)(Xsdt + 1);\r
- Entry64Num = (Xsdt->Length - sizeof(EFI_ACPI_DESCRIPTION_HEADER)) >> 3;\r
- for (Idx = 0; Idx < Entry64Num; Idx++) {\r
- if (*(UINT32 *)(UINTN)(Entry64[Idx]) == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {\r
- Fadt = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)(UINTN)(Entry64[Idx]);\r
- if (pPmCtrlReg)\r
- *pPmCtrlReg = Fadt->Pm1aCntBlk;\r
- DEBUG ((EFI_D_ERROR, "PmCtrl Reg 0x%x\n", Fadt->Pm1aCntBlk));\r
-\r
- if (pPmTimerReg)\r
- *pPmTimerReg = Fadt->PmTmrBlk;\r
- DEBUG ((EFI_D_ERROR, "PmTimer Reg 0x%x\n", Fadt->PmTmrBlk));\r
-\r
- if (pResetReg)\r
- *pResetReg = (UINTN)Fadt->ResetReg.Address;\r
- DEBUG ((EFI_D_ERROR, "Reset Reg 0x%lx\n", Fadt->ResetReg.Address));\r
-\r
- if (pResetValue)\r
- *pResetValue = Fadt->ResetValue;\r
- DEBUG ((EFI_D_ERROR, "Reset Value 0x%x\n", Fadt->ResetValue));\r
-\r
- if (pPmEvtReg != NULL) {\r
- *pPmEvtReg = Fadt->Pm1aEvtBlk;\r
- DEBUG ((EFI_D_INFO, "PmEvt Reg 0x%x\n", Fadt->Pm1aEvtBlk));\r
- }\r
-\r
- if (pPmGpeEnReg != NULL) {\r
- *pPmGpeEnReg = Fadt->Gpe0Blk + Fadt->Gpe0BlkLen / 2;\r
- DEBUG ((EFI_D_INFO, "PmGpeEn Reg 0x%x\n", *pPmGpeEnReg));\r
- }\r
- return RETURN_SUCCESS;\r
- }\r
- }\r
- }\r
-\r
- return RETURN_NOT_FOUND;\r
-}\r
-\r
-/**\r
- Find the serial port information\r
-\r
- @param pRegBase Pointer to the base address of serial port registers\r
- @param pRegAccessType Pointer to the access type of serial port registers\r
- @param pRegWidth Pointer to the register width in bytes\r
- @param pBaudrate Pointer to the serial port baudrate\r
- @param pInputHertz Pointer to the input clock frequency\r
- @param pUartPciAddr Pointer to the UART PCI bus, dev and func address\r
-\r
- @retval RETURN_SUCCESS Successfully find the serial port information.\r
- @retval RETURN_NOT_FOUND Failed to find the serial port information .\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-CbParseSerialInfo (\r
- OUT UINT32 *pRegBase,\r
- OUT UINT32 *pRegAccessType,\r
- OUT UINT32 *pRegWidth,\r
- OUT UINT32 *pBaudrate,\r
- OUT UINT32 *pInputHertz,\r
- OUT UINT32 *pUartPciAddr\r
- )\r
-{\r
- struct cb_serial *CbSerial;\r
-\r
- CbSerial = FindCbTag (0, CB_TAG_SERIAL);\r
- if (CbSerial == NULL) {\r
- CbSerial = FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_SERIAL);\r
- }\r
-\r
- if (CbSerial == NULL) {\r
- return RETURN_NOT_FOUND;\r
- }\r
-\r
- if (pRegBase != NULL) {\r
- *pRegBase = CbSerial->baseaddr;\r
- }\r
-\r
- if (pRegWidth != NULL) {\r
- *pRegWidth = CbSerial->regwidth;\r
- }\r
-\r
- if (pRegAccessType != NULL) {\r
- *pRegAccessType = CbSerial->type;\r
- }\r
-\r
- if (pBaudrate != NULL) {\r
- *pBaudrate = CbSerial->baud;\r
- }\r
-\r
- if (pInputHertz != NULL) {\r
- *pInputHertz = CbSerial->input_hertz;\r
- }\r
-\r
- if (pUartPciAddr != NULL) {\r
- *pUartPciAddr = CbSerial->uart_pci_addr;\r
- }\r
-\r
- return RETURN_SUCCESS;\r
-}\r
-\r
-/**\r
- Search for the coreboot table header\r
-\r
- @param Level Level of the search depth\r
- @param HeaderPtr Pointer to the pointer of coreboot table header\r
-\r
- @retval RETURN_SUCCESS Successfully find the coreboot table header .\r
- @retval RETURN_NOT_FOUND Failed to find the coreboot table header .\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-CbParseGetCbHeader (\r
- IN UINTN Level,\r
- OUT VOID **HeaderPtr\r
- )\r
-{\r
- UINTN Index;\r
- VOID *TempPtr;\r
-\r
- if (HeaderPtr == NULL) {\r
- return RETURN_NOT_FOUND;\r
- }\r
-\r
- TempPtr = NULL;\r
- for (Index = 0; Index < Level; Index++) {\r
- TempPtr = FindCbTag (TempPtr, CB_TAG_FORWARD);\r
- if (TempPtr == NULL) {\r
- break;\r
- }\r
- }\r
-\r
- if ((Index >= Level) && (TempPtr != NULL)) {\r
- *HeaderPtr = TempPtr;\r
- return RETURN_SUCCESS;\r
- }\r
-\r
- return RETURN_NOT_FOUND;\r
-}\r
-\r
-/**\r
- Find the video frame buffer information\r
-\r
- @param pFbInfo Pointer to the FRAME_BUFFER_INFO structure\r
-\r
- @retval RETURN_SUCCESS Successfully find the video frame buffer information.\r
- @retval RETURN_NOT_FOUND Failed to find the video frame buffer information .\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-CbParseFbInfo (\r
- OUT FRAME_BUFFER_INFO *pFbInfo\r
- )\r
-{\r
- struct cb_framebuffer *CbFbRec;\r
-\r
- if (pFbInfo == NULL) {\r
- return RETURN_INVALID_PARAMETER;\r
- }\r
-\r
- CbFbRec = FindCbTag (0, CB_TAG_FRAMEBUFFER);\r
- if (CbFbRec == NULL) {\r
- CbFbRec = FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_FRAMEBUFFER);\r
- }\r
-\r
- if (CbFbRec == NULL) {\r
- return RETURN_NOT_FOUND;\r
- }\r
-\r
- DEBUG ((EFI_D_INFO, "Found coreboot video frame buffer information\n"));\r
- DEBUG ((EFI_D_INFO, "physical_address: 0x%lx\n", CbFbRec->physical_address));\r
- DEBUG ((EFI_D_INFO, "x_resolution: 0x%x\n", CbFbRec->x_resolution));\r
- DEBUG ((EFI_D_INFO, "y_resolution: 0x%x\n", CbFbRec->y_resolution));\r
- DEBUG ((EFI_D_INFO, "bits_per_pixel: 0x%x\n", CbFbRec->bits_per_pixel));\r
- DEBUG ((EFI_D_INFO, "bytes_per_line: 0x%x\n", CbFbRec->bytes_per_line));\r
-\r
- DEBUG ((EFI_D_INFO, "red_mask_size: 0x%x\n", CbFbRec->red_mask_size));\r
- DEBUG ((EFI_D_INFO, "red_mask_pos: 0x%x\n", CbFbRec->red_mask_pos));\r
- DEBUG ((EFI_D_INFO, "green_mask_size: 0x%x\n", CbFbRec->green_mask_size));\r
- DEBUG ((EFI_D_INFO, "green_mask_pos: 0x%x\n", CbFbRec->green_mask_pos));\r
- DEBUG ((EFI_D_INFO, "blue_mask_size: 0x%x\n", CbFbRec->blue_mask_size));\r
- DEBUG ((EFI_D_INFO, "blue_mask_pos: 0x%x\n", CbFbRec->blue_mask_pos));\r
- DEBUG ((EFI_D_INFO, "reserved_mask_size: 0x%x\n", CbFbRec->reserved_mask_size));\r
- DEBUG ((EFI_D_INFO, "reserved_mask_pos: 0x%x\n", CbFbRec->reserved_mask_pos));\r
-\r
- pFbInfo->LinearFrameBuffer = CbFbRec->physical_address;\r
- pFbInfo->HorizontalResolution = CbFbRec->x_resolution;\r
- pFbInfo->VerticalResolution = CbFbRec->y_resolution;\r
- pFbInfo->BitsPerPixel = CbFbRec->bits_per_pixel;\r
- pFbInfo->BytesPerScanLine = (UINT16)CbFbRec->bytes_per_line;\r
- pFbInfo->Red.Mask = (1 << CbFbRec->red_mask_size) - 1;\r
- pFbInfo->Red.Position = CbFbRec->red_mask_pos;\r
- pFbInfo->Green.Mask = (1 << CbFbRec->green_mask_size) - 1;\r
- pFbInfo->Green.Position = CbFbRec->green_mask_pos;\r
- pFbInfo->Blue.Mask = (1 << CbFbRec->blue_mask_size) - 1;\r
- pFbInfo->Blue.Position = CbFbRec->blue_mask_pos;\r
- pFbInfo->Reserved.Mask = (1 << CbFbRec->reserved_mask_size) - 1;\r
- pFbInfo->Reserved.Position = CbFbRec->reserved_mask_pos;\r
-\r
- return RETURN_SUCCESS;\r
-}\r
-\r
projects / mirror_edk2.git / blobdiff