**/\r
EFI_STATUS\r
FatAllocateVolume (\r
- IN EFI_HANDLE Handle,\r
- IN EFI_DISK_IO_PROTOCOL *DiskIo,\r
- IN EFI_DISK_IO2_PROTOCOL *DiskIo2,\r
- IN EFI_BLOCK_IO_PROTOCOL *BlockIo\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DISK_IO_PROTOCOL *DiskIo,\r
+ IN EFI_DISK_IO2_PROTOCOL *DiskIo2,\r
+ IN EFI_BLOCK_IO_PROTOCOL *BlockIo\r
)\r
{\r
EFI_STATUS Status;\r
//\r
// Initialize the structure\r
//\r
- Volume->Signature = FAT_VOLUME_SIGNATURE;\r
- Volume->Handle = Handle;\r
- Volume->DiskIo = DiskIo;\r
- Volume->DiskIo2 = DiskIo2;\r
- Volume->BlockIo = BlockIo;\r
- Volume->MediaId = BlockIo->Media->MediaId;\r
- Volume->ReadOnly = BlockIo->Media->ReadOnly;\r
- Volume->VolumeInterface.Revision = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION;\r
- Volume->VolumeInterface.OpenVolume = FatOpenVolume;\r
+ Volume->Signature = FAT_VOLUME_SIGNATURE;\r
+ Volume->Handle = Handle;\r
+ Volume->DiskIo = DiskIo;\r
+ Volume->DiskIo2 = DiskIo2;\r
+ Volume->BlockIo = BlockIo;\r
+ Volume->MediaId = BlockIo->Media->MediaId;\r
+ Volume->ReadOnly = BlockIo->Media->ReadOnly;\r
+ Volume->VolumeInterface.Revision = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION;\r
+ Volume->VolumeInterface.OpenVolume = FatOpenVolume;\r
InitializeListHead (&Volume->CheckRef);\r
InitializeListHead (&Volume->DirCacheList);\r
//\r
if (EFI_ERROR (Status)) {\r
goto Done;\r
}\r
+\r
//\r
// Initialize cache\r
//\r
if (EFI_ERROR (Status)) {\r
goto Done;\r
}\r
+\r
//\r
// Install our protocol interfaces on the device's handle\r
//\r
if (EFI_ERROR (Status)) {\r
goto Done;\r
}\r
+\r
//\r
// Volume installed\r
//\r
**/\r
EFI_STATUS\r
FatAbandonVolume (\r
- IN FAT_VOLUME *Volume\r
+ IN FAT_VOLUME *Volume\r
)\r
{\r
EFI_STATUS Status;\r
if (!EFI_ERROR (Status)) {\r
LockedByMe = TRUE;\r
}\r
+\r
//\r
// The volume is still being used. Hence, set error flag for all OFiles still in\r
// use. In two cases, we could get here. One is EFI_MEDIA_CHANGED, the other is\r
**/\r
EFI_STATUS\r
FatOpenDevice (\r
- IN OUT FAT_VOLUME *Volume\r
+ IN OUT FAT_VOLUME *Volume\r
)\r
{\r
EFI_STATUS Status;\r
// This is the only part of FAT code that uses parent DiskIo,\r
// Others use FatDiskIo which utilizes a Cache.\r
//\r
- DiskIo = Volume->DiskIo;\r
- Status = DiskIo->ReadDisk (DiskIo, Volume->MediaId, 0, sizeof (FatBs), &FatBs);\r
+ DiskIo = Volume->DiskIo;\r
+ Status = DiskIo->ReadDisk (DiskIo, Volume->MediaId, 0, sizeof (FatBs), &FatBs);\r
\r
if (EFI_ERROR (Status)) {\r
DEBUG ((DEBUG_INIT, "FatOpenDevice: read of part_lba failed %r\n", Status));\r
SectorsPerFat = FatBs.FatBse.Fat32Bse.LargeSectorsPerFat;\r
FatType = Fat32;\r
}\r
+\r
//\r
// Is boot sector a fat sector?\r
// (Note that so far we only know if the sector is FAT32 or not, we don't\r
// know if the sector is Fat16 or Fat12 until later when we can compute\r
// the volume size)\r
//\r
- if (FatBs.FatBsb.ReservedSectors == 0 || FatBs.FatBsb.NumFats == 0 || Sectors == 0) {\r
+ if ((FatBs.FatBsb.ReservedSectors == 0) || (FatBs.FatBsb.NumFats == 0) || (Sectors == 0)) {\r
return EFI_UNSUPPORTED;\r
}\r
\r
return EFI_UNSUPPORTED;\r
}\r
\r
- BlockAlignment = (UINT8) HighBitSet32 (FatBs.FatBsb.SectorSize);\r
- if (BlockAlignment > MAX_BLOCK_ALIGNMENT || BlockAlignment < MIN_BLOCK_ALIGNMENT) {\r
+ BlockAlignment = (UINT8)HighBitSet32 (FatBs.FatBsb.SectorSize);\r
+ if ((BlockAlignment > MAX_BLOCK_ALIGNMENT) || (BlockAlignment < MIN_BLOCK_ALIGNMENT)) {\r
return EFI_UNSUPPORTED;\r
}\r
\r
return EFI_UNSUPPORTED;\r
}\r
\r
- SectorsPerClusterAlignment = (UINT8) HighBitSet32 (FatBs.FatBsb.SectorsPerCluster);\r
+ SectorsPerClusterAlignment = (UINT8)HighBitSet32 (FatBs.FatBsb.SectorsPerCluster);\r
if (SectorsPerClusterAlignment > MAX_SECTORS_PER_CLUSTER_ALIGNMENT) {\r
return EFI_UNSUPPORTED;\r
}\r
\r
- if (FatBs.FatBsb.Media <= 0xf7 &&\r
- FatBs.FatBsb.Media != 0xf0 &&\r
- FatBs.FatBsb.Media != 0x00 &&\r
- FatBs.FatBsb.Media != 0x01\r
- ) {\r
+ if ((FatBs.FatBsb.Media <= 0xf7) &&\r
+ (FatBs.FatBsb.Media != 0xf0) &&\r
+ (FatBs.FatBsb.Media != 0x00) &&\r
+ (FatBs.FatBsb.Media != 0x01)\r
+ )\r
+ {\r
return EFI_UNSUPPORTED;\r
}\r
+\r
//\r
// Initialize fields the volume information for this FatType\r
//\r
if (FatBs.FatBsb.RootEntries == 0) {\r
return EFI_UNSUPPORTED;\r
}\r
+\r
//\r
// Unpack fat12, fat16 info\r
//\r
//\r
// If this is fat32, refuse to mount mirror-disabled volumes\r
//\r
- if ((SectorsPerFat == 0 || FatBs.FatBse.Fat32Bse.FsVersion != 0) || (FatBs.FatBse.Fat32Bse.ExtendedFlags & 0x80)) {\r
+ if (((SectorsPerFat == 0) || (FatBs.FatBse.Fat32Bse.FsVersion != 0)) || (FatBs.FatBse.Fat32Bse.ExtendedFlags & 0x80)) {\r
return EFI_UNSUPPORTED;\r
}\r
+\r
//\r
// Unpack fat32 info\r
//\r
Volume->RootCluster = FatBs.FatBse.Fat32Bse.RootDirFirstCluster;\r
}\r
\r
- Volume->NumFats = FatBs.FatBsb.NumFats;\r
+ Volume->NumFats = FatBs.FatBsb.NumFats;\r
//\r
// Compute some fat locations\r
//\r
- BlockSize = FatBs.FatBsb.SectorSize;\r
- RootDirSectors = ((Volume->RootEntries * sizeof (FAT_DIRECTORY_ENTRY)) + (BlockSize - 1)) / BlockSize;\r
+ BlockSize = FatBs.FatBsb.SectorSize;\r
+ RootDirSectors = ((Volume->RootEntries * sizeof (FAT_DIRECTORY_ENTRY)) + (BlockSize - 1)) / BlockSize;\r
\r
- FatLba = FatBs.FatBsb.ReservedSectors;\r
- RootLba = FatBs.FatBsb.NumFats * SectorsPerFat + FatLba;\r
- FirstClusterLba = RootLba + RootDirSectors;\r
+ FatLba = FatBs.FatBsb.ReservedSectors;\r
+ RootLba = FatBs.FatBsb.NumFats * SectorsPerFat + FatLba;\r
+ FirstClusterLba = RootLba + RootDirSectors;\r
\r
- Volume->FatPos = FatLba * BlockSize;\r
- Volume->FatSize = SectorsPerFat * BlockSize;\r
+ Volume->FatPos = FatLba * BlockSize;\r
+ Volume->FatSize = SectorsPerFat * BlockSize;\r
\r
- Volume->VolumeSize = LShiftU64 (Sectors, BlockAlignment);\r
- Volume->RootPos = LShiftU64 (RootLba, BlockAlignment);\r
- Volume->FirstClusterPos = LShiftU64 (FirstClusterLba, BlockAlignment);\r
- Volume->MaxCluster = (Sectors - FirstClusterLba) >> SectorsPerClusterAlignment;\r
- Volume->ClusterAlignment = (UINT8)(BlockAlignment + SectorsPerClusterAlignment);\r
- Volume->ClusterSize = (UINTN)1 << (Volume->ClusterAlignment);\r
+ Volume->VolumeSize = LShiftU64 (Sectors, BlockAlignment);\r
+ Volume->RootPos = LShiftU64 (RootLba, BlockAlignment);\r
+ Volume->FirstClusterPos = LShiftU64 (FirstClusterLba, BlockAlignment);\r
+ Volume->MaxCluster = (Sectors - FirstClusterLba) >> SectorsPerClusterAlignment;\r
+ Volume->ClusterAlignment = (UINT8)(BlockAlignment + SectorsPerClusterAlignment);\r
+ Volume->ClusterSize = (UINTN)1 << (Volume->ClusterAlignment);\r
\r
//\r
// If this is not a fat32, determine if it's a fat16 or fat12\r
if (Volume->MaxCluster < FAT_MAX_FAT16_CLUSTER) {\r
return EFI_VOLUME_CORRUPTED;\r
}\r
+\r
//\r
// fat32 fat-entries are 4 bytes\r
//\r
Volume->FatEntrySize = sizeof (UINT32);\r
DirtyMask = FAT32_DIRTY_MASK;\r
}\r
+\r
//\r
// Get the DirtyValue and NotDirtyValue\r
// We should keep the initial value as the NotDirtyValue\r
\r
Volume->DirtyValue = Volume->NotDirtyValue & DirtyMask;\r
}\r
+\r
//\r
// If present, read the fat hint info\r
//\r
Volume->FreeInfoPos = FatBs.FatBse.Fat32Bse.FsInfoSector * BlockSize;\r
if (FatBs.FatBse.Fat32Bse.FsInfoSector != 0) {\r
FatDiskIo (Volume, ReadDisk, Volume->FreeInfoPos, sizeof (FAT_INFO_SECTOR), &Volume->FatInfoSector, NULL);\r
- if (Volume->FatInfoSector.Signature == FAT_INFO_SIGNATURE &&\r
- Volume->FatInfoSector.InfoBeginSignature == FAT_INFO_BEGIN_SIGNATURE &&\r
- Volume->FatInfoSector.InfoEndSignature == FAT_INFO_END_SIGNATURE &&\r
- Volume->FatInfoSector.FreeInfo.ClusterCount <= Volume->MaxCluster\r
- ) {\r
+ if ((Volume->FatInfoSector.Signature == FAT_INFO_SIGNATURE) &&\r
+ (Volume->FatInfoSector.InfoBeginSignature == FAT_INFO_BEGIN_SIGNATURE) &&\r
+ (Volume->FatInfoSector.InfoEndSignature == FAT_INFO_END_SIGNATURE) &&\r
+ (Volume->FatInfoSector.FreeInfo.ClusterCount <= Volume->MaxCluster)\r
+ )\r
+ {\r
Volume->FreeInfoValid = TRUE;\r
}\r
}\r
}\r
+\r
//\r
// Just make up a FreeInfo.NextCluster for use by allocate cluster\r
//\r
- if (FAT_MIN_CLUSTER > Volume->FatInfoSector.FreeInfo.NextCluster ||\r
- Volume->FatInfoSector.FreeInfo.NextCluster > Volume->MaxCluster + 1\r
- ) {\r
+ if ((FAT_MIN_CLUSTER > Volume->FatInfoSector.FreeInfo.NextCluster) ||\r
+ (Volume->FatInfoSector.FreeInfo.NextCluster > Volume->MaxCluster + 1)\r
+ )\r
+ {\r
Volume->FatInfoSector.FreeInfo.NextCluster = FAT_MIN_CLUSTER;\r
}\r
+\r
//\r
// We are now defining FAT Type\r
//\r
projects / mirror_edk2.git / blobdiff