diff options
Diffstat (limited to 'FatPkg/EnhancedFatDxe/Fat.c')
| -rw-r--r-- | FatPkg/EnhancedFatDxe/Fat.c | 531 |
1 files changed, 0 insertions, 531 deletions
diff --git a/FatPkg/EnhancedFatDxe/Fat.c b/FatPkg/EnhancedFatDxe/Fat.c deleted file mode 100644 index e29c64cb03..0000000000 --- a/FatPkg/EnhancedFatDxe/Fat.c +++ /dev/null @@ -1,531 +0,0 @@ -/** @file
- Fat File System driver routines that support EFI driver model.
-
-Copyright (c) 2005 - 2014, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials are licensed and made available
-under the terms and conditions of the BSD License which accompanies this
-distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "Fat.h"
-
-/**
-
- Register Driver Binding protocol for this driver.
-
- @param ImageHandle - Handle for the image of this driver.
- @param SystemTable - Pointer to the EFI System Table.
-
- @retval EFI_SUCCESS - Driver loaded.
- @return other - Driver not loaded.
-
-**/
-EFI_STATUS
-EFIAPI
-FatEntryPoint (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- );
-
-/**
-
- Unload function for this image. Uninstall DriverBinding protocol.
-
- @param ImageHandle - Handle for the image of this driver.
-
- @retval EFI_SUCCESS - Driver unloaded successfully.
- @return other - Driver can not unloaded.
-
-**/
-EFI_STATUS
-EFIAPI
-FatUnload (
- IN EFI_HANDLE ImageHandle
- );
-
-/**
-
- Test to see if this driver can add a file system to ControllerHandle.
- ControllerHandle must support both Disk IO and Block IO protocols.
-
- @param This - Protocol instance pointer.
- @param ControllerHandle - Handle of device to test.
- @param RemainingDevicePath - Not used.
-
- @retval EFI_SUCCESS - This driver supports this device.
- @retval EFI_ALREADY_STARTED - This driver is already running on this device.
- @return other - This driver does not support this device.
-
-**/
-EFI_STATUS
-EFIAPI
-FatDriverBindingSupported (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
- );
-
-/**
-
- Start this driver on ControllerHandle by opening a Block IO and Disk IO
- protocol, reading Device Path. Add a Simple File System protocol to
- ControllerHandle if the media contains a valid file system.
-
- @param This - Protocol instance pointer.
- @param ControllerHandle - Handle of device to bind driver to.
- @param RemainingDevicePath - Not used.
-
- @retval EFI_SUCCESS - This driver is added to DeviceHandle.
- @retval EFI_ALREADY_STARTED - This driver is already running on DeviceHandle.
- @retval EFI_OUT_OF_RESOURCES - Can not allocate the memory.
- @return other - This driver does not support this device.
-
-**/
-EFI_STATUS
-EFIAPI
-FatDriverBindingStart (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
- );
-
-/**
-
- Stop this driver on ControllerHandle.
-
- @param This - Protocol instance pointer.
- @param ControllerHandle - Handle of device to stop driver on.
- @param NumberOfChildren - Not used.
- @param ChildHandleBuffer - Not used.
-
- @retval EFI_SUCCESS - This driver is removed DeviceHandle.
- @return other - This driver was not removed from this device.
-
-**/
-EFI_STATUS
-EFIAPI
-FatDriverBindingStop (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN UINTN NumberOfChildren,
- IN EFI_HANDLE *ChildHandleBuffer
- );
-
-//
-// DriverBinding protocol instance
-//
-EFI_DRIVER_BINDING_PROTOCOL gFatDriverBinding = {
- FatDriverBindingSupported,
- FatDriverBindingStart,
- FatDriverBindingStop,
- 0xa,
- NULL,
- NULL
-};
-
-/**
-
- Register Driver Binding protocol for this driver.
-
- @param ImageHandle - Handle for the image of this driver.
- @param SystemTable - Pointer to the EFI System Table.
-
- @retval EFI_SUCCESS - Driver loaded.
- @return other - Driver not loaded.
-
-**/
-EFI_STATUS
-EFIAPI
-FatEntryPoint (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
-
- //
- // Initialize the EFI Driver Library
- //
- Status = EfiLibInstallDriverBindingComponentName2 (
- ImageHandle,
- SystemTable,
- &gFatDriverBinding,
- ImageHandle,
- &gFatComponentName,
- &gFatComponentName2
- );
- ASSERT_EFI_ERROR (Status);
-
- return Status;
-}
-
-/**
-
- Unload function for this image. Uninstall DriverBinding protocol.
-
- @param ImageHandle - Handle for the image of this driver.
-
- @retval EFI_SUCCESS - Driver unloaded successfully.
- @return other - Driver can not unloaded.
-
-**/
-EFI_STATUS
-EFIAPI
-FatUnload (
- IN EFI_HANDLE ImageHandle
- )
-{
- EFI_STATUS Status;
- EFI_HANDLE *DeviceHandleBuffer;
- UINTN DeviceHandleCount;
- UINTN Index;
- VOID *ComponentName;
- VOID *ComponentName2;
-
- Status = gBS->LocateHandleBuffer (
- AllHandles,
- NULL,
- NULL,
- &DeviceHandleCount,
- &DeviceHandleBuffer
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- for (Index = 0; Index < DeviceHandleCount; Index++) {
- Status = EfiTestManagedDevice (DeviceHandleBuffer[Index], ImageHandle, &gEfiDiskIoProtocolGuid);
- if (!EFI_ERROR (Status)) {
- Status = gBS->DisconnectController (
- DeviceHandleBuffer[Index],
- ImageHandle,
- NULL
- );
- if (EFI_ERROR (Status)) {
- break;
- }
- }
- }
-
- if (Index == DeviceHandleCount) {
- //
- // Driver is stopped successfully.
- //
- Status = gBS->HandleProtocol (ImageHandle, &gEfiComponentNameProtocolGuid, &ComponentName);
- if (EFI_ERROR (Status)) {
- ComponentName = NULL;
- }
-
- Status = gBS->HandleProtocol (ImageHandle, &gEfiComponentName2ProtocolGuid, &ComponentName2);
- if (EFI_ERROR (Status)) {
- ComponentName2 = NULL;
- }
-
- if (ComponentName == NULL) {
- if (ComponentName2 == NULL) {
- Status = gBS->UninstallMultipleProtocolInterfaces (
- ImageHandle,
- &gEfiDriverBindingProtocolGuid, &gFatDriverBinding,
- NULL
- );
- } else {
- Status = gBS->UninstallMultipleProtocolInterfaces (
- ImageHandle,
- &gEfiDriverBindingProtocolGuid, &gFatDriverBinding,
- &gEfiComponentName2ProtocolGuid, ComponentName2,
- NULL
- );
- }
- } else {
- if (ComponentName2 == NULL) {
- Status = gBS->UninstallMultipleProtocolInterfaces (
- ImageHandle,
- &gEfiDriverBindingProtocolGuid, &gFatDriverBinding,
- &gEfiComponentNameProtocolGuid, ComponentName,
- NULL
- );
- } else {
- Status = gBS->UninstallMultipleProtocolInterfaces (
- ImageHandle,
- &gEfiDriverBindingProtocolGuid, &gFatDriverBinding,
- &gEfiComponentNameProtocolGuid, ComponentName,
- &gEfiComponentName2ProtocolGuid, ComponentName2,
- NULL
- );
- }
- }
- }
-
- if (DeviceHandleBuffer != NULL) {
- FreePool (DeviceHandleBuffer);
- }
-
- return Status;
-}
-
-/**
-
- Test to see if this driver can add a file system to ControllerHandle.
- ControllerHandle must support both Disk IO and Block IO protocols.
-
- @param This - Protocol instance pointer.
- @param ControllerHandle - Handle of device to test.
- @param RemainingDevicePath - Not used.
-
- @retval EFI_SUCCESS - This driver supports this device.
- @retval EFI_ALREADY_STARTED - This driver is already running on this device.
- @return other - This driver does not support this device.
-
-**/
-EFI_STATUS
-EFIAPI
-FatDriverBindingSupported (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
- )
-{
- EFI_STATUS Status;
- EFI_DISK_IO_PROTOCOL *DiskIo;
-
- //
- // Open the IO Abstraction(s) needed to perform the supported test
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiDiskIoProtocolGuid,
- (VOID **) &DiskIo,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
-
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Close the I/O Abstraction(s) used to perform the supported test
- //
- gBS->CloseProtocol (
- ControllerHandle,
- &gEfiDiskIoProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
-
- //
- // Open the IO Abstraction(s) needed to perform the supported test
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiBlockIoProtocolGuid,
- NULL,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL
- );
-
- return Status;
-}
-
-/**
-
- Start this driver on ControllerHandle by opening a Block IO and Disk IO
- protocol, reading Device Path. Add a Simple File System protocol to
- ControllerHandle if the media contains a valid file system.
-
- @param This - Protocol instance pointer.
- @param ControllerHandle - Handle of device to bind driver to.
- @param RemainingDevicePath - Not used.
-
- @retval EFI_SUCCESS - This driver is added to DeviceHandle.
- @retval EFI_ALREADY_STARTED - This driver is already running on DeviceHandle.
- @retval EFI_OUT_OF_RESOURCES - Can not allocate the memory.
- @return other - This driver does not support this device.
-
-**/
-EFI_STATUS
-EFIAPI
-FatDriverBindingStart (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
- )
-{
- EFI_STATUS Status;
- EFI_BLOCK_IO_PROTOCOL *BlockIo;
- EFI_DISK_IO_PROTOCOL *DiskIo;
- EFI_DISK_IO2_PROTOCOL *DiskIo2;
- BOOLEAN LockedByMe;
-
- LockedByMe = FALSE;
- //
- // Acquire the lock.
- // If caller has already acquired the lock, cannot lock it again.
- //
- Status = FatAcquireLockOrFail ();
- if (!EFI_ERROR (Status)) {
- LockedByMe = TRUE;
- }
-
- Status = InitializeUnicodeCollationSupport (This->DriverBindingHandle);
- if (EFI_ERROR (Status)) {
- goto Exit;
- }
- //
- // Open our required BlockIo and DiskIo
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiBlockIoProtocolGuid,
- (VOID **) &BlockIo,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (EFI_ERROR (Status)) {
- goto Exit;
- }
-
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiDiskIoProtocolGuid,
- (VOID **) &DiskIo,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (EFI_ERROR (Status)) {
- goto Exit;
- }
-
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiDiskIo2ProtocolGuid,
- (VOID **) &DiskIo2,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (EFI_ERROR (Status)) {
- DiskIo2 = NULL;
- }
-
- //
- // Allocate Volume structure. In FatAllocateVolume(), Resources
- // are allocated with protocol installed and cached initialized
- //
- Status = FatAllocateVolume (ControllerHandle, DiskIo, DiskIo2, BlockIo);
-
- //
- // When the media changes on a device it will Reinstall the BlockIo interaface.
- // This will cause a call to our Stop(), and a subsequent reentrant call to our
- // Start() successfully. We should leave the device open when this happen.
- //
- if (EFI_ERROR (Status)) {
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiSimpleFileSystemProtocolGuid,
- NULL,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL
- );
- if (EFI_ERROR (Status)) {
- gBS->CloseProtocol (
- ControllerHandle,
- &gEfiDiskIoProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
- gBS->CloseProtocol (
- ControllerHandle,
- &gEfiDiskIo2ProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
- }
- }
-
-Exit:
- //
- // Unlock if locked by myself.
- //
- if (LockedByMe) {
- FatReleaseLock ();
- }
- return Status;
-}
-
-/**
-
- Stop this driver on ControllerHandle.
-
- @param This - Protocol instance pointer.
- @param ControllerHandle - Handle of device to stop driver on.
- @param NumberOfChildren - Not used.
- @param ChildHandleBuffer - Not used.
-
- @retval EFI_SUCCESS - This driver is removed DeviceHandle.
- @return other - This driver was not removed from this device.
-
-**/
-EFI_STATUS
-EFIAPI
-FatDriverBindingStop (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN UINTN NumberOfChildren,
- IN EFI_HANDLE *ChildHandleBuffer
- )
-{
- EFI_STATUS Status;
- EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *FileSystem;
- FAT_VOLUME *Volume;
- EFI_DISK_IO2_PROTOCOL *DiskIo2;
-
- DiskIo2 = NULL;
- //
- // Get our context back
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiSimpleFileSystemProtocolGuid,
- (VOID **) &FileSystem,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
-
- if (!EFI_ERROR (Status)) {
- Volume = VOLUME_FROM_VOL_INTERFACE (FileSystem);
- DiskIo2 = Volume->DiskIo2;
- Status = FatAbandonVolume (Volume);
- }
-
- if (!EFI_ERROR (Status)) {
- if (DiskIo2 != NULL) {
- Status = gBS->CloseProtocol (
- ControllerHandle,
- &gEfiDiskIo2ProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
- ASSERT_EFI_ERROR (Status);
- }
- Status = gBS->CloseProtocol (
- ControllerHandle,
- &gEfiDiskIoProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
- ASSERT_EFI_ERROR (Status);
- }
-
- return Status;
-}
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