\r
#include "FatLitePeim.h"\r
\r
-\r
/**\r
Check if there is a valid FAT in the corresponding Block device\r
of the volume and if yes, fill in the relevant fields for the\r
// Read in the BPB\r
//\r
Status = FatReadDisk (\r
- PrivateData,\r
- Volume->BlockDeviceNo,\r
- 0,\r
- sizeof (PEI_FAT_BOOT_SECTOR_EX),\r
- &BpbEx\r
- );\r
+ PrivateData,\r
+ Volume->BlockDeviceNo,\r
+ 0,\r
+ sizeof (PEI_FAT_BOOT_SECTOR_EX),\r
+ &BpbEx\r
+ );\r
if (EFI_ERROR (Status)) {\r
return Status;\r
}\r
\r
CopyMem (\r
- (UINT8 *) (&Bpb),\r
- (UINT8 *) (&BpbEx),\r
+ (UINT8 *)(&Bpb),\r
+ (UINT8 *)(&BpbEx),\r
sizeof (PEI_FAT_BOOT_SECTOR)\r
);\r
\r
Volume->FatType = FatUnknown;\r
\r
- Sectors = Bpb.Sectors;\r
+ Sectors = Bpb.Sectors;\r
if (Sectors == 0) {\r
Sectors = Bpb.LargeSectors;\r
}\r
SectorsPerFat = BpbEx.LargeSectorsPerFat;\r
Volume->FatType = Fat32;\r
}\r
+\r
//\r
// Filter out those not a FAT\r
//\r
- if (Bpb.Ia32Jump[0] != 0xe9 && Bpb.Ia32Jump[0] != 0xeb && Bpb.Ia32Jump[0] != 0x49) {\r
+ if ((Bpb.Ia32Jump[0] != 0xe9) && (Bpb.Ia32Jump[0] != 0xeb) && (Bpb.Ia32Jump[0] != 0x49)) {\r
return EFI_NOT_FOUND;\r
}\r
\r
- if (Bpb.ReservedSectors == 0 || Bpb.NoFats == 0 || Sectors == 0) {\r
+ if ((Bpb.ReservedSectors == 0) || (Bpb.NoFats == 0) || (Sectors == 0)) {\r
return EFI_NOT_FOUND;\r
}\r
\r
- if (Bpb.SectorsPerCluster != 1 &&\r
- Bpb.SectorsPerCluster != 2 &&\r
- Bpb.SectorsPerCluster != 4 &&\r
- Bpb.SectorsPerCluster != 8 &&\r
- Bpb.SectorsPerCluster != 16 &&\r
- Bpb.SectorsPerCluster != 32 &&\r
- Bpb.SectorsPerCluster != 64 &&\r
- Bpb.SectorsPerCluster != 128\r
- ) {\r
+ if ((Bpb.SectorsPerCluster != 1) &&\r
+ (Bpb.SectorsPerCluster != 2) &&\r
+ (Bpb.SectorsPerCluster != 4) &&\r
+ (Bpb.SectorsPerCluster != 8) &&\r
+ (Bpb.SectorsPerCluster != 16) &&\r
+ (Bpb.SectorsPerCluster != 32) &&\r
+ (Bpb.SectorsPerCluster != 64) &&\r
+ (Bpb.SectorsPerCluster != 128)\r
+ )\r
+ {\r
return EFI_NOT_FOUND;\r
}\r
\r
- if (Volume->FatType == Fat32 && (SectorsPerFat == 0 || BpbEx.FsVersion != 0)) {\r
+ if ((Volume->FatType == Fat32) && ((SectorsPerFat == 0) || (BpbEx.FsVersion != 0))) {\r
return EFI_NOT_FOUND;\r
}\r
\r
- if (Bpb.Media != 0xf0 &&\r
- Bpb.Media != 0xf8 &&\r
- Bpb.Media != 0xf9 &&\r
- Bpb.Media != 0xfb &&\r
- Bpb.Media != 0xfc &&\r
- Bpb.Media != 0xfd &&\r
- Bpb.Media != 0xfe &&\r
- Bpb.Media != 0xff &&\r
+ if ((Bpb.Media != 0xf0) &&\r
+ (Bpb.Media != 0xf8) &&\r
+ (Bpb.Media != 0xf9) &&\r
+ (Bpb.Media != 0xfb) &&\r
+ (Bpb.Media != 0xfc) &&\r
+ (Bpb.Media != 0xfd) &&\r
+ (Bpb.Media != 0xfe) &&\r
+ (Bpb.Media != 0xff) &&\r
//\r
// FujitsuFMR\r
//\r
- Bpb.Media != 0x00 &&\r
- Bpb.Media != 0x01 &&\r
- Bpb.Media != 0xfa\r
- ) {\r
+ (Bpb.Media != 0x00) &&\r
+ (Bpb.Media != 0x01) &&\r
+ (Bpb.Media != 0xfa)\r
+ )\r
+ {\r
return EFI_NOT_FOUND;\r
}\r
\r
- if (Volume->FatType != Fat32 && Bpb.RootEntries == 0) {\r
+ if ((Volume->FatType != Fat32) && (Bpb.RootEntries == 0)) {\r
return EFI_NOT_FOUND;\r
}\r
+\r
//\r
// If this is fat32, refuse to mount mirror-disabled volumes\r
//\r
- if (Volume->FatType == Fat32 && ((BpbEx.ExtendedFlags & 0x80) != 0)) {\r
+ if ((Volume->FatType == Fat32) && ((BpbEx.ExtendedFlags & 0x80) != 0)) {\r
return EFI_NOT_FOUND;\r
}\r
+\r
//\r
// Fill in the volume structure fields\r
// (Sectors & SectorsPerFat is computed earlier already)\r
\r
RootDirSectors = ((Volume->RootEntries * sizeof (FAT_DIRECTORY_ENTRY)) + (Volume->SectorSize - 1)) / Volume->SectorSize;\r
\r
- FatLba = Bpb.ReservedSectors;\r
- RootLba = Bpb.NoFats * SectorsPerFat + FatLba;\r
- FirstClusterLba = RootLba + RootDirSectors;\r
+ FatLba = Bpb.ReservedSectors;\r
+ RootLba = Bpb.NoFats * SectorsPerFat + FatLba;\r
+ FirstClusterLba = RootLba + RootDirSectors;\r
\r
Volume->VolumeSize = MultU64x32 (Sectors, Volume->SectorSize);\r
Volume->FatPos = MultU64x32 (FatLba, Volume->SectorSize);\r
Volume->RootDirPos = MultU64x32 (RootLba, Volume->SectorSize);\r
Volume->FirstClusterPos = MultU64x32 (FirstClusterLba, Volume->SectorSize);\r
- Volume->MaxCluster = (UINT32) (Sectors - FirstClusterLba) / Bpb.SectorsPerCluster;\r
+ Volume->MaxCluster = (UINT32)(Sectors - FirstClusterLba) / Bpb.SectorsPerCluster;\r
Volume->RootDirCluster = BpbEx.RootDirFirstCluster;\r
\r
//\r
// If this is not a fat32, determine if it's a fat16 or fat12\r
//\r
if (Volume->FatType != Fat32) {\r
-\r
if (Volume->MaxCluster >= 65525) {\r
return EFI_NOT_FOUND;\r
}\r
return EFI_SUCCESS;\r
}\r
\r
-\r
/**\r
Gets the next cluster in the cluster chain\r
\r
if (Volume->FatType == Fat32) {\r
FatEntryPos = Volume->FatPos + MultU64x32 (4, Cluster);\r
\r
- Status = FatReadDisk (PrivateData, Volume->BlockDeviceNo, FatEntryPos, 4, NextCluster);\r
+ Status = FatReadDisk (PrivateData, Volume->BlockDeviceNo, FatEntryPos, 4, NextCluster);\r
*NextCluster &= 0x0fffffff;\r
\r
//\r
if ((*NextCluster) >= 0x0ffffff7) {\r
*NextCluster |= (-1 &~0xf);\r
}\r
-\r
} else if (Volume->FatType == Fat16) {\r
FatEntryPos = Volume->FatPos + MultU64x32 (2, Cluster);\r
\r
- Status = FatReadDisk (PrivateData, Volume->BlockDeviceNo, FatEntryPos, 2, NextCluster);\r
+ Status = FatReadDisk (PrivateData, Volume->BlockDeviceNo, FatEntryPos, 2, NextCluster);\r
\r
//\r
// Pad high bits for our FAT_CLUSTER_... macro definitions to work\r
if ((*NextCluster) >= 0xfff7) {\r
*NextCluster |= (-1 &~0xf);\r
}\r
-\r
} else {\r
FatEntryPos = Volume->FatPos + DivU64x32Remainder (MultU64x32 (3, Cluster), 2, &Dummy);\r
\r
- Status = FatReadDisk (PrivateData, Volume->BlockDeviceNo, FatEntryPos, 2, NextCluster);\r
+ Status = FatReadDisk (PrivateData, Volume->BlockDeviceNo, FatEntryPos, 2, NextCluster);\r
\r
if ((Cluster & 0x01) != 0) {\r
*NextCluster = (*NextCluster) >> 4;\r
} else {\r
*NextCluster = (*NextCluster) & 0x0fff;\r
}\r
+\r
//\r
// Pad high bits for our FAT_CLUSTER_... macro definitions to work\r
//\r
}\r
\r
return EFI_SUCCESS;\r
-\r
}\r
\r
-\r
/**\r
Set a file's CurrentPos and CurrentCluster, then compute StraightReadAmount.\r
\r
UINT32 PrevCluster;\r
\r
if (File->IsFixedRootDir) {\r
-\r
if (Pos >= MultU64x32 (File->Volume->RootEntries, 32) - File->CurrentPos) {\r
return EFI_INVALID_PARAMETER;\r
}\r
\r
- File->CurrentPos += Pos;\r
- File->StraightReadAmount = (UINT32) (MultU64x32 (File->Volume->RootEntries, 32) - File->CurrentPos);\r
-\r
+ File->CurrentPos += Pos;\r
+ File->StraightReadAmount = (UINT32)(MultU64x32 (File->Volume->RootEntries, 32) - File->CurrentPos);\r
} else {\r
-\r
DivU64x32Remainder (File->CurrentPos, File->Volume->ClusterSize, &Offset);\r
- AlignedPos = (UINT32) File->CurrentPos - (UINT32) Offset;\r
+ AlignedPos = (UINT32)File->CurrentPos - (UINT32)Offset;\r
\r
while\r
(\r
- !FAT_CLUSTER_FUNCTIONAL (File->CurrentCluster) &&\r
- AlignedPos + File->Volume->ClusterSize <= File->CurrentPos + Pos\r
- ) {\r
+ !FAT_CLUSTER_FUNCTIONAL (File->CurrentCluster) &&\r
+ AlignedPos + File->Volume->ClusterSize <= File->CurrentPos + Pos\r
+ )\r
+ {\r
AlignedPos += File->Volume->ClusterSize;\r
- Status = FatGetNextCluster (\r
- PrivateData,\r
- File->Volume,\r
- File->CurrentCluster,\r
- &File->CurrentCluster\r
- );\r
+ Status = FatGetNextCluster (\r
+ PrivateData,\r
+ File->Volume,\r
+ File->CurrentCluster,\r
+ &File->CurrentCluster\r
+ );\r
if (EFI_ERROR (Status)) {\r
return EFI_DEVICE_ERROR;\r
}\r
// Calculate the amount of consecutive cluster occupied by the file.\r
// FatReadFile() will use it to read these blocks once.\r
//\r
- File->StraightReadAmount = 0;\r
- Cluster = File->CurrentCluster;\r
+ File->StraightReadAmount = 0;\r
+ Cluster = File->CurrentCluster;\r
while (!FAT_CLUSTER_FUNCTIONAL (Cluster)) {\r
File->StraightReadAmount += File->Volume->ClusterSize;\r
- PrevCluster = Cluster;\r
- Status = FatGetNextCluster (PrivateData, File->Volume, Cluster, &Cluster);\r
+ PrevCluster = Cluster;\r
+ Status = FatGetNextCluster (PrivateData, File->Volume, Cluster, &Cluster);\r
if (EFI_ERROR (Status)) {\r
return EFI_DEVICE_ERROR;\r
}\r
}\r
\r
DivU64x32Remainder (File->CurrentPos, File->Volume->ClusterSize, &Offset);\r
- File->StraightReadAmount -= (UINT32) Offset;\r
-\r
+ File->StraightReadAmount -= (UINT32)Offset;\r
}\r
\r
return EFI_SUCCESS;\r
}\r
\r
-\r
/**\r
Reads file data. Updates the file's CurrentPos.\r
\r
}\r
\r
Status = FatReadDisk (\r
- PrivateData,\r
- File->Volume->BlockDeviceNo,\r
- File->Volume->RootDirPos + File->CurrentPos,\r
- Size,\r
- Buffer\r
- );\r
- File->CurrentPos += (UINT32) Size;\r
+ PrivateData,\r
+ File->Volume->BlockDeviceNo,\r
+ File->Volume->RootDirPos + File->CurrentPos,\r
+ Size,\r
+ Buffer\r
+ );\r
+ File->CurrentPos += (UINT32)Size;\r
return Status;\r
-\r
} else {\r
-\r
if ((File->Attributes & FAT_ATTR_DIRECTORY) == 0) {\r
Size = Size < (File->FileSize - File->CurrentPos) ? Size : (File->FileSize - File->CurrentPos);\r
}\r
+\r
//\r
// This is a normal cluster based file\r
//\r
while (Size != 0) {\r
DivU64x32Remainder (File->CurrentPos, File->Volume->ClusterSize, &Offset);\r
- PhysicalAddr = File->Volume->FirstClusterPos + MultU64x32 (File->Volume->ClusterSize, File->CurrentCluster - 2);\r
+ PhysicalAddr = File->Volume->FirstClusterPos + MultU64x32 (File->Volume->ClusterSize, File->CurrentCluster - 2);\r
\r
- Amount = File->StraightReadAmount;\r
- Amount = Size > Amount ? Amount : Size;\r
+ Amount = File->StraightReadAmount;\r
+ Amount = Size > Amount ? Amount : Size;\r
Status = FatReadDisk (\r
- PrivateData,\r
- File->Volume->BlockDeviceNo,\r
- PhysicalAddr + Offset,\r
- Amount,\r
- BufferPtr\r
- );\r
+ PrivateData,\r
+ File->Volume->BlockDeviceNo,\r
+ PhysicalAddr + Offset,\r
+ Amount,\r
+ BufferPtr\r
+ );\r
if (EFI_ERROR (Status)) {\r
return EFI_DEVICE_ERROR;\r
}\r
+\r
//\r
// Advance the file's current pos and current cluster\r
//\r
- FatSetFilePos (PrivateData, File, (UINT32) Amount);\r
+ FatSetFilePos (PrivateData, File, (UINT32)Amount);\r
\r
BufferPtr += Amount;\r
- Size -= Amount;\r
+ Size -= Amount;\r
}\r
\r
return EFI_SUCCESS;\r
}\r
}\r
\r
-\r
/**\r
This function reads the next item in the parent directory and\r
initializes the output parameter SubFile (CurrentPos is initialized to 0).\r
OUT PEI_FAT_FILE *SubFile\r
)\r
{\r
- EFI_STATUS Status;\r
- FAT_DIRECTORY_ENTRY DirEntry;\r
- CHAR16 *Pos;\r
- CHAR16 BaseName[9];\r
- CHAR16 Ext[4];\r
+ EFI_STATUS Status;\r
+ FAT_DIRECTORY_ENTRY DirEntry;\r
+ CHAR16 *Pos;\r
+ CHAR16 BaseName[9];\r
+ CHAR16 Ext[4];\r
\r
- ZeroMem ((UINT8 *) SubFile, sizeof (PEI_FAT_FILE));\r
+ ZeroMem ((UINT8 *)SubFile, sizeof (PEI_FAT_FILE));\r
\r
//\r
// Pick a valid directory entry\r
if (EFI_ERROR (Status)) {\r
return EFI_DEVICE_ERROR;\r
}\r
+\r
//\r
// We only search for *FILE* in root directory\r
// Long file name entry is *NOT* supported\r
if (((DirEntry.Attributes & FAT_ATTR_DIRECTORY) == FAT_ATTR_DIRECTORY) || (DirEntry.Attributes == FAT_ATTR_LFN)) {\r
continue;\r
}\r
+\r
//\r
// if this is a terminator dir entry, just return EFI_NOT_FOUND\r
//\r
if (DirEntry.FileName[0] == EMPTY_ENTRY_MARK) {\r
return EFI_NOT_FOUND;\r
}\r
+\r
//\r
// If this not an invalid entry neither an empty entry, this is what we want.\r
// otherwise we will start a new loop to continue to find something meaningful\r
//\r
- if ((UINT8) DirEntry.FileName[0] != DELETE_ENTRY_MARK) {\r
+ if ((UINT8)DirEntry.FileName[0] != DELETE_ENTRY_MARK) {\r
break;\r
}\r
}\r
+\r
//\r
// fill in the output parameter\r
//\r
EngFatToStr (8, DirEntry.FileName, BaseName);\r
EngFatToStr (3, DirEntry.FileName + 8, Ext);\r
\r
- Pos = (UINT16 *) SubFile->FileName;\r
- SetMem ((UINT8 *) Pos, FAT_MAX_FILE_NAME_LENGTH, 0);\r
- CopyMem ((UINT8 *) Pos, (UINT8 *) BaseName, 2 * (StrLen (BaseName) + 1));\r
+ Pos = (UINT16 *)SubFile->FileName;\r
+ SetMem ((UINT8 *)Pos, FAT_MAX_FILE_NAME_LENGTH, 0);\r
+ CopyMem ((UINT8 *)Pos, (UINT8 *)BaseName, 2 * (StrLen (BaseName) + 1));\r
\r
if (Ext[0] != 0) {\r
Pos += StrLen (BaseName);\r
*Pos = '.';\r
Pos++;\r
- CopyMem ((UINT8 *) Pos, (UINT8 *) Ext, 2 * (StrLen (Ext) + 1));\r
+ CopyMem ((UINT8 *)Pos, (UINT8 *)Ext, 2 * (StrLen (Ext) + 1));\r
}\r
\r
SubFile->Attributes = DirEntry.Attributes;\r
SubFile->CurrentCluster |= DirEntry.FileClusterHigh << 16;\r
}\r
\r
- SubFile->CurrentPos = 0;\r
- SubFile->FileSize = DirEntry.FileSize;\r
- SubFile->StartingCluster = SubFile->CurrentCluster;\r
- SubFile->Volume = ParentDir->Volume;\r
+ SubFile->CurrentPos = 0;\r
+ SubFile->FileSize = DirEntry.FileSize;\r
+ SubFile->StartingCluster = SubFile->CurrentCluster;\r
+ SubFile->Volume = ParentDir->Volume;\r
\r
//\r
// in Pei phase, time parameters do not need to be filled for minimum use.\r
projects / mirror_edk2.git / blobdiff