Change Fat driver to support asynchronous File IO introduced in UEFI spec 2.3.1.D.
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> (based on FatPkg commit 063f6e8a9c263bafd52e1226399fc64d6d721dca) [jordan.l.justen@intel.com: Use script to relicense to 2-clause BSD] Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Acked-by: Mark Doran <mark.doran@intel.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
@@ -1,6 +1,6 @@
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/*++
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Copyright (c) 2005 - 2009, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2005 - 2013, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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distribution. The full text of the license may be found at
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@@ -24,6 +24,95 @@ Revision History
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#include "Fat.h"
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EFI_STATUS
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EFIAPI
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FatFlushEx (
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IN EFI_FILE_PROTOCOL *FHand,
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IN EFI_FILE_IO_TOKEN *Token
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)
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/*++
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Routine Description:
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Flushes all data associated with the file handle.
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Arguments:
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FHand - Handle to file to flush.
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Token - A pointer to the token associated with the transaction.
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Returns:
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EFI_SUCCESS - Flushed the file successfully.
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EFI_WRITE_PROTECTED - The volume is read only.
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EFI_ACCESS_DENIED - The file is read only.
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Others - Flushing of the file failed.
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--*/
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{
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FAT_IFILE *IFile;
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FAT_OFILE *OFile;
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FAT_VOLUME *Volume;
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EFI_STATUS Status;
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FAT_TASK *Task;
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IFile = IFILE_FROM_FHAND (FHand);
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OFile = IFile->OFile;
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Volume = OFile->Volume;
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Task = NULL;
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//
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// If the file has a permanent error, return it
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//
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if (EFI_ERROR (OFile->Error)) {
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return OFile->Error;
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}
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if (Volume->ReadOnly) {
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return EFI_WRITE_PROTECTED;
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}
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//
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// If read only, return error
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//
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if (IFile->ReadOnly) {
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return EFI_ACCESS_DENIED;
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}
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if (Token == NULL) {
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FatWaitNonblockingTask (IFile);
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} else {
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//
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// Caller shouldn't call the non-blocking interfaces if the low layer doesn't support DiskIo2.
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// But if it calls, the below check can avoid crash.
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//
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if (FHand->Revision < EFI_FILE_PROTOCOL_REVISION2) {
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return EFI_UNSUPPORTED;
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}
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Task = FatCreateTask (IFile, Token);
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if (Task == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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}
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//
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// Flush the OFile
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//
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FatAcquireLock ();
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Status = FatOFileFlush (OFile);
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Status = FatCleanupVolume (OFile->Volume, OFile, Status, Task);
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FatReleaseLock ();
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if (Token != NULL) {
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if (!EFI_ERROR (Status)) {
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Status = FatQueueTask (IFile, Task);
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} else {
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FatDestroyTask (Task);
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}
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}
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return Status;
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}
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EFI_STATUS
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EFIAPI
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FatFlush (
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@@ -48,39 +137,7 @@ Returns:
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--*/
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{
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FAT_IFILE *IFile;
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FAT_OFILE *OFile;
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FAT_VOLUME *Volume;
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EFI_STATUS Status;
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IFile = IFILE_FROM_FHAND (FHand);
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OFile = IFile->OFile;
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Volume = OFile->Volume;
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//
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// If the file has a permanent error, return it
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//
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if (EFI_ERROR (OFile->Error)) {
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return OFile->Error;
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}
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if (Volume->ReadOnly) {
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return EFI_WRITE_PROTECTED;
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}
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//
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// If read only, return error
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//
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if (IFile->ReadOnly) {
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return EFI_ACCESS_DENIED;
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}
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//
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// Flush the OFile
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//
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FatAcquireLock ();
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Status = FatOFileFlush (OFile);
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Status = FatCleanupVolume (OFile->Volume, OFile, Status);
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FatReleaseLock ();
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return Status;
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return FatFlushEx (FHand, NULL);
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}
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EFI_STATUS
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@@ -125,7 +182,7 @@ Returns:
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//
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// Done. Unlock the volume
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//
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FatCleanupVolume (Volume, OFile, EFI_SUCCESS);
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FatCleanupVolume (Volume, OFile, EFI_SUCCESS, NULL);
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FatReleaseLock ();
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//
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@@ -162,6 +219,8 @@ Returns:
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ASSERT_VOLUME_LOCKED (Volume);
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FatWaitNonblockingTask (IFile);
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//
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// Remove the IFile struct
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//
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@@ -359,7 +418,8 @@ EFI_STATUS
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FatCleanupVolume (
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IN FAT_VOLUME *Volume,
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IN FAT_OFILE *OFile,
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IN EFI_STATUS EfiStatus
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IN EFI_STATUS EfiStatus,
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IN FAT_TASK *Task
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)
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/*++
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@@ -402,7 +462,7 @@ Returns:
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// indicates this a FAT32 volume
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//
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if (Volume->FreeInfoValid && Volume->FatDirty && Volume->FreeInfoPos) {
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Status = FatDiskIo (Volume, WRITE_DISK, Volume->FreeInfoPos, sizeof (FAT_INFO_SECTOR), &Volume->FatInfoSector);
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Status = FatDiskIo (Volume, WRITE_DISK, Volume->FreeInfoPos, sizeof (FAT_INFO_SECTOR), &Volume->FatInfoSector, Task);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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@@ -420,7 +480,7 @@ Returns:
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//
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// Flush all dirty cache entries to disk
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//
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Status = FatVolumeFlushCache (Volume);
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Status = FatVolumeFlushCache (Volume, Task);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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