diff options
Diffstat (limited to 'FatPkg/EnhancedFatDxe/ReadWrite.c')
| -rw-r--r-- | FatPkg/EnhancedFatDxe/ReadWrite.c | 93 |
1 files changed, 51 insertions, 42 deletions
diff --git a/FatPkg/EnhancedFatDxe/ReadWrite.c b/FatPkg/EnhancedFatDxe/ReadWrite.c index 07bed70037..8f525044d1 100644 --- a/FatPkg/EnhancedFatDxe/ReadWrite.c +++ b/FatPkg/EnhancedFatDxe/ReadWrite.c @@ -25,12 +25,12 @@ SPDX-License-Identifier: BSD-2-Clause-Patent EFI_STATUS
EFIAPI
FatGetPosition (
- IN EFI_FILE_PROTOCOL *FHand,
- OUT UINT64 *Position
+ IN EFI_FILE_PROTOCOL *FHand,
+ OUT UINT64 *Position
)
{
- FAT_IFILE *IFile;
- FAT_OFILE *OFile;
+ FAT_IFILE *IFile;
+ FAT_OFILE *OFile;
IFile = IFILE_FROM_FHAND (FHand);
OFile = IFile->OFile;
@@ -66,8 +66,8 @@ FatSetPosition ( IN UINT64 Position
)
{
- FAT_IFILE *IFile;
- FAT_OFILE *OFile;
+ FAT_IFILE *IFile;
+ FAT_OFILE *OFile;
IFile = IFILE_FROM_FHAND (FHand);
OFile = IFile->OFile;
@@ -91,12 +91,14 @@ FatSetPosition ( FatResetODirCursor (OFile);
}
+
//
// Set the position
//
if (Position == (UINT64)-1) {
Position = OFile->FileSize;
}
+
//
// Set the position
//
@@ -118,9 +120,9 @@ FatSetPosition ( **/
EFI_STATUS
FatIFileReadDir (
- IN FAT_IFILE *IFile,
- IN OUT UINTN *BufferSize,
- OUT VOID *Buffer
+ IN FAT_IFILE *IFile,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
)
{
EFI_STATUS Status;
@@ -129,9 +131,9 @@ FatIFileReadDir ( FAT_DIRENT *DirEnt;
UINT32 CurrentPos;
- OFile = IFile->OFile;
- ODir = OFile->ODir;
- CurrentPos = ((UINT32) IFile->Position) / sizeof (FAT_DIRECTORY_ENTRY);
+ OFile = IFile->OFile;
+ ODir = OFile->ODir;
+ CurrentPos = ((UINT32)IFile->Position) / sizeof (FAT_DIRECTORY_ENTRY);
//
// We need to relocate the directory
@@ -142,12 +144,13 @@ FatIFileReadDir ( //
FatResetODirCursor (OFile);
}
+
//
// We seek the next directory entry's position
//
do {
Status = FatGetNextDirEnt (OFile, &DirEnt);
- if (EFI_ERROR (Status) || DirEnt == NULL) {
+ if (EFI_ERROR (Status) || (DirEnt == NULL)) {
//
// Something error occurred or reach the end of directory,
// return 0 buffersize
@@ -156,6 +159,7 @@ FatIFileReadDir ( goto Done;
}
} while (ODir->CurrentPos <= CurrentPos);
+
Status = FatGetDirEntInfo (OFile->Volume, DirEnt, BufferSize, Buffer);
Done:
@@ -193,11 +197,11 @@ Done: **/
EFI_STATUS
FatIFileAccess (
- IN EFI_FILE_PROTOCOL *FHand,
- IN IO_MODE IoMode,
- IN OUT UINTN *BufferSize,
- IN OUT VOID *Buffer,
- IN EFI_FILE_IO_TOKEN *Token
+ IN EFI_FILE_PROTOCOL *FHand,
+ IN IO_MODE IoMode,
+ IN OUT UINTN *BufferSize,
+ IN OUT VOID *Buffer,
+ IN EFI_FILE_IO_TOKEN *Token
)
{
EFI_STATUS Status;
@@ -253,6 +257,7 @@ FatIFileAccess ( if (FHand->Revision < EFI_FILE_PROTOCOL_REVISION2) {
return EFI_UNSUPPORTED;
}
+
Task = FatCreateTask (IFile, Token);
if (Task == NULL) {
return EFI_OUT_OF_RESOURCES;
@@ -269,7 +274,7 @@ FatIFileAccess ( //
ASSERT (IoMode == ReadData);
Status = FatIFileReadDir (IFile, BufferSize, Buffer);
- OFile = NULL;
+ OFile = NULL;
} else {
//
// Access a file
@@ -283,7 +288,7 @@ FatIFileAccess ( //
// Adjust the actual size read
//
- *BufferSize -= (UINTN) EndPosition - OFile->FileSize;
+ *BufferSize -= (UINTN)EndPosition - OFile->FileSize;
} else {
//
// We expand the file size of OFile
@@ -304,7 +309,7 @@ FatIFileAccess ( }
}
- Status = FatAccessOFile (OFile, IoMode, (UINTN) IFile->Position, BufferSize, Buffer, Task);
+ Status = FatAccessOFile (OFile, IoMode, (UINTN)IFile->Position, BufferSize, Buffer, Task);
IFile->Position += *BufferSize;
}
}
@@ -355,7 +360,7 @@ EFIAPI FatRead (
IN EFI_FILE_PROTOCOL *FHand,
IN OUT UINTN *BufferSize,
- OUT VOID *Buffer
+ OUT VOID *Buffer
)
{
return FatIFileAccess (FHand, ReadData, BufferSize, Buffer, NULL);
@@ -453,12 +458,12 @@ FatWriteEx ( **/
EFI_STATUS
FatAccessOFile (
- IN FAT_OFILE *OFile,
- IN IO_MODE IoMode,
- IN UINTN Position,
- IN OUT UINTN *DataBufferSize,
- IN OUT UINT8 *UserBuffer,
- IN FAT_TASK *Task
+ IN FAT_OFILE *OFile,
+ IN IO_MODE IoMode,
+ IN UINTN Position,
+ IN OUT UINTN *DataBufferSize,
+ IN OUT UINT8 *UserBuffer,
+ IN FAT_TASK *Task
)
{
FAT_VOLUME *Volume;
@@ -466,8 +471,8 @@ FatAccessOFile ( EFI_STATUS Status;
UINTN BufferSize;
- BufferSize = *DataBufferSize;
- Volume = OFile->Volume;
+ BufferSize = *DataBufferSize;
+ Volume = OFile->Volume;
ASSERT_VOLUME_LOCKED (Volume);
Status = EFI_SUCCESS;
@@ -479,6 +484,7 @@ FatAccessOFile ( if (EFI_ERROR (Status)) {
break;
}
+
//
// Clip length to block run
//
@@ -491,6 +497,7 @@ FatAccessOFile ( if (EFI_ERROR (Status)) {
break;
}
+
//
// Data was successfully accessed
//
@@ -498,14 +505,16 @@ FatAccessOFile ( UserBuffer += Len;
BufferSize -= Len;
if (IoMode == WriteData) {
- OFile->Dirty = TRUE;
- OFile->Archive = TRUE;
+ OFile->Dirty = TRUE;
+ OFile->Archive = TRUE;
}
+
//
// Make sure no outbound occurred
//
ASSERT (Position <= OFile->FileSize);
}
+
//
// Update the number of bytes accessed
//
@@ -526,15 +535,15 @@ FatAccessOFile ( **/
EFI_STATUS
FatExpandOFile (
- IN FAT_OFILE *OFile,
- IN UINT64 ExpandedSize
+ IN FAT_OFILE *OFile,
+ IN UINT64 ExpandedSize
)
{
EFI_STATUS Status;
UINTN WritePos;
- WritePos = OFile->FileSize;
- Status = FatGrowEof (OFile, ExpandedSize);
+ WritePos = OFile->FileSize;
+ Status = FatGrowEof (OFile, ExpandedSize);
if (!EFI_ERROR (Status)) {
Status = FatWriteZeroPool (OFile, WritePos);
}
@@ -566,8 +575,8 @@ FatWriteZeroPool ( UINTN BufferSize;
UINTN WriteSize;
- AppendedSize = OFile->FileSize - WritePos;
- BufferSize = AppendedSize;
+ AppendedSize = OFile->FileSize - WritePos;
+ BufferSize = AppendedSize;
if (AppendedSize > FAT_MAX_ALLOCATE_SIZE) {
//
// If the appended size is larger, maybe we can not allocate the whole
@@ -584,9 +593,9 @@ FatWriteZeroPool ( }
do {
- WriteSize = AppendedSize > BufferSize ? BufferSize : (UINTN) AppendedSize;
+ WriteSize = AppendedSize > BufferSize ? BufferSize : (UINTN)AppendedSize;
AppendedSize -= WriteSize;
- Status = FatAccessOFile (OFile, WriteData, WritePos, &WriteSize, ZeroBuffer, NULL);
+ Status = FatAccessOFile (OFile, WriteData, WritePos, &WriteSize, ZeroBuffer, NULL);
if (EFI_ERROR (Status)) {
break;
}
@@ -611,8 +620,8 @@ FatWriteZeroPool ( **/
EFI_STATUS
FatTruncateOFile (
- IN FAT_OFILE *OFile,
- IN UINTN TruncatedSize
+ IN FAT_OFILE *OFile,
+ IN UINTN TruncatedSize
)
{
OFile->FileSize = TruncatedSize;
|