From 61076c5b774e1185d0db84d2e73b353f30713abe Mon Sep 17 00:00:00 2001 From: vanjeff Date: Thu, 28 Jun 2007 10:32:05 +0000 Subject: [PATCH] Remove diskio.c git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2840 6f19259b-4bc3-4df7-8a09-765794883524 --- .../Universal/Disk/DiskIo/Dxe/diskio.c | 737 ------------------ 1 file changed, 737 deletions(-) delete mode 100644 MdeModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c diff --git a/MdeModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c b/MdeModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c deleted file mode 100644 index 0cb49224ca..0000000000 --- a/MdeModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c +++ /dev/null @@ -1,737 +0,0 @@ -/** @file - DiskIo driver that layers it's self on every Block IO protocol in the system. - DiskIo converts a block oriented device to a byte oriented device. - - ReadDisk may have to do reads that are not aligned on sector boundaries. - There are three cases: - UnderRun - The first byte is not on a sector boundary or the read request is - less than a sector in length. - Aligned - A read of N contiguous sectors. - OverRun - The last byte is not on a sector boundary. - - Copyright (c) 2006 - 2007, Intel Corporation - All rights reserved. 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 "DiskIo.h" - -EFI_DRIVER_BINDING_PROTOCOL gDiskIoDriverBinding = { - DiskIoDriverBindingSupported, - DiskIoDriverBindingStart, - DiskIoDriverBindingStop, - 0xa, - NULL, - NULL -}; - -DISK_IO_PRIVATE_DATA gDiskIoPrivateDataTemplate = { - DISK_IO_PRIVATE_DATA_SIGNATURE, - { - EFI_DISK_IO_PROTOCOL_REVISION, - DiskIoReadDisk, - DiskIoWriteDisk - }, - NULL -}; - - -/** - Test to see if this driver supports ControllerHandle. - - @param This Protocol instance pointer. - @param ControllerHandle Handle of device to test - @param RemainingDevicePath Optional parameter use to pick a specific child - device to start. - - @retval EFI_SUCCESS This driver supports this device - @retval EFI_ALREADY_STARTED This driver is already running on this device - @retval other This driver does not support this device - -**/ -EFI_STATUS -EFIAPI -DiskIoDriverBindingSupported ( - IN EFI_DRIVER_BINDING_PROTOCOL *This, - IN EFI_HANDLE ControllerHandle, - IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL - ) -{ - EFI_STATUS Status; - EFI_BLOCK_IO_PROTOCOL *BlockIo; - - // - // Open the IO Abstraction(s) needed to perform the supported test. - // - Status = gBS->OpenProtocol ( - ControllerHandle, - &gEfiBlockIoProtocolGuid, - (VOID **) &BlockIo, - 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, - &gEfiBlockIoProtocolGuid, - This->DriverBindingHandle, - ControllerHandle - ); - return EFI_SUCCESS; -} - - -/** - Start this driver on ControllerHandle by opening a Block IO protocol and - installing a Disk IO protocol on ControllerHandle. - - @param This Protocol instance pointer. - @param ControllerHandle Handle of device to bind driver to - @param RemainingDevicePath Optional parameter use to pick a specific child - device to start. - - @retval EFI_SUCCESS This driver is added to ControllerHandle - @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle - @retval other This driver does not support this device - -**/ -EFI_STATUS -EFIAPI -DiskIoDriverBindingStart ( - IN EFI_DRIVER_BINDING_PROTOCOL *This, - IN EFI_HANDLE ControllerHandle, - IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL - ) -{ - EFI_STATUS Status; - DISK_IO_PRIVATE_DATA *Private; - - Private = NULL; - - // - // Connect to the Block IO interface on ControllerHandle. - // - Status = gBS->OpenProtocol ( - ControllerHandle, - &gEfiBlockIoProtocolGuid, - (VOID **) &gDiskIoPrivateDataTemplate.BlockIo, - This->DriverBindingHandle, - ControllerHandle, - EFI_OPEN_PROTOCOL_BY_DRIVER - ); - if (EFI_ERROR (Status)) { - return Status; - } - - // - // Initialize the Disk IO device instance. - // - Private = AllocateCopyPool (sizeof (DISK_IO_PRIVATE_DATA), &gDiskIoPrivateDataTemplate); - if (Private == NULL) { - Status = EFI_OUT_OF_RESOURCES; - goto ErrorExit; - } - - // - // Install protocol interfaces for the Disk IO device. - // - Status = gBS->InstallProtocolInterface ( - &ControllerHandle, - &gEfiDiskIoProtocolGuid, - EFI_NATIVE_INTERFACE, - &Private->DiskIo - ); - -ErrorExit: - if (EFI_ERROR (Status)) { - - if (Private != NULL) { - FreePool (Private); - } - - gBS->CloseProtocol ( - ControllerHandle, - &gEfiBlockIoProtocolGuid, - This->DriverBindingHandle, - ControllerHandle - ); - } - - return Status; -} - - -/** - Stop this driver on ControllerHandle by removing Disk IO protocol and closing - the Block IO protocol on ControllerHandle. - - @param This Protocol instance pointer. - @param ControllerHandle Handle of device to stop driver on - @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of - children is zero stop the entire bus driver. - @param ChildHandleBuffer List of Child Handles to Stop. - - @retval EFI_SUCCESS This driver is removed ControllerHandle - @retval other This driver was not removed from this device - -**/ -EFI_STATUS -EFIAPI -DiskIoDriverBindingStop ( - IN EFI_DRIVER_BINDING_PROTOCOL *This, - IN EFI_HANDLE ControllerHandle, - IN UINTN NumberOfChildren, - IN EFI_HANDLE *ChildHandleBuffer - ) -{ - EFI_STATUS Status; - EFI_DISK_IO_PROTOCOL *DiskIo; - DISK_IO_PRIVATE_DATA *Private; - - // - // Get our context back. - // - Status = gBS->OpenProtocol ( - ControllerHandle, - &gEfiDiskIoProtocolGuid, - (VOID **) &DiskIo, - This->DriverBindingHandle, - ControllerHandle, - EFI_OPEN_PROTOCOL_GET_PROTOCOL - ); - if (EFI_ERROR (Status)) { - return EFI_UNSUPPORTED; - } - - Private = DISK_IO_PRIVATE_DATA_FROM_THIS (DiskIo); - - Status = gBS->UninstallProtocolInterface ( - ControllerHandle, - &gEfiDiskIoProtocolGuid, - &Private->DiskIo - ); - if (!EFI_ERROR (Status)) { - - Status = gBS->CloseProtocol ( - ControllerHandle, - &gEfiBlockIoProtocolGuid, - This->DriverBindingHandle, - ControllerHandle - ); - } - - if (!EFI_ERROR (Status)) { - FreePool (Private); - } - - return Status; -} - - - -/** - Read BufferSize bytes from Offset into Buffer. - Reads may support reads that are not aligned on - sector boundaries. There are three cases: - UnderRun - The first byte is not on a sector boundary or the read request is - less than a sector in length. - Aligned - A read of N contiguous sectors. - OverRun - The last byte is not on a sector boundary. - - @param This Protocol instance pointer. - @param MediaId Id of the media, changes every time the media is replaced. - @param Offset The starting byte offset to read from - @param BufferSize Size of Buffer - @param Buffer Buffer containing read data - - @retval EFI_SUCCESS The data was read correctly from the device. - @retval EFI_DEVICE_ERROR The device reported an error while performing the read. - @retval EFI_NO_MEDIA There is no media in the device. - @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device. - @retval EFI_INVALID_PARAMETER The read request contains device addresses that are not - valid for the device. - -**/ -EFI_STATUS -EFIAPI -DiskIoReadDisk ( - IN EFI_DISK_IO_PROTOCOL *This, - IN UINT32 MediaId, - IN UINT64 Offset, - IN UINTN BufferSize, - OUT VOID *Buffer - ) -{ - EFI_STATUS Status; - DISK_IO_PRIVATE_DATA *Private; - EFI_BLOCK_IO_PROTOCOL *BlockIo; - EFI_BLOCK_IO_MEDIA *Media; - UINT32 BlockSize; - UINT64 Lba; - UINT64 OverRunLba; - UINT32 UnderRun; - UINT32 OverRun; - BOOLEAN TransactionComplete; - UINTN WorkingBufferSize; - UINT8 *WorkingBuffer; - UINTN Length; - UINT8 *Data; - UINT8 *PreData; - UINTN IsBufferAligned; - UINTN DataBufferSize; - BOOLEAN LastRead; - - Private = DISK_IO_PRIVATE_DATA_FROM_THIS (This); - - BlockIo = Private->BlockIo; - Media = BlockIo->Media; - BlockSize = Media->BlockSize; - - if (Media->MediaId != MediaId) { - return EFI_MEDIA_CHANGED; - } - - WorkingBuffer = Buffer; - WorkingBufferSize = BufferSize; - - // - // Allocate a temporary buffer for operation - // - DataBufferSize = BlockSize * DATA_BUFFER_BLOCK_NUM; - - if (Media->IoAlign > 1) { - PreData = AllocatePool (DataBufferSize + Media->IoAlign); - Data = PreData - ((UINTN) PreData & (Media->IoAlign - 1)) + Media->IoAlign; - } else { - PreData = AllocatePool (DataBufferSize); - Data = PreData; - } - - if (PreData == NULL) { - return EFI_OUT_OF_RESOURCES; - } - - Lba = DivU64x32Remainder (Offset, BlockSize, &UnderRun); - - Length = BlockSize - UnderRun; - TransactionComplete = FALSE; - - Status = EFI_SUCCESS; - if (UnderRun != 0) { - // - // Offset starts in the middle of an Lba, so read the entire block. - // - Status = BlockIo->ReadBlocks ( - BlockIo, - MediaId, - Lba, - BlockSize, - Data - ); - - if (EFI_ERROR (Status)) { - goto Done; - } - - if (Length > BufferSize) { - Length = BufferSize; - TransactionComplete = TRUE; - } - - CopyMem (WorkingBuffer, Data + UnderRun, Length); - - WorkingBuffer += Length; - - WorkingBufferSize -= Length; - if (WorkingBufferSize == 0) { - goto Done; - } - - Lba += 1; - } - - OverRunLba = Lba + DivU64x32Remainder (WorkingBufferSize, BlockSize, &OverRun); - - if (!TransactionComplete && WorkingBufferSize >= BlockSize) { - // - // If the DiskIo maps directly to a BlockIo device do the read. - // - if (OverRun != 0) { - WorkingBufferSize -= OverRun; - } - // - // Check buffer alignment - // - IsBufferAligned = (UINTN) WorkingBuffer & (UINTN) (Media->IoAlign - 1); - - if (Media->IoAlign <= 1 || IsBufferAligned == 0) { - // - // Alignment is satisfied, so read them together - // - Status = BlockIo->ReadBlocks ( - BlockIo, - MediaId, - Lba, - WorkingBufferSize, - WorkingBuffer - ); - - if (EFI_ERROR (Status)) { - goto Done; - } - - WorkingBuffer += WorkingBufferSize; - - } else { - // - // Use the allocated buffer instead of the original buffer - // to avoid alignment issue. - // Here, the allocated buffer (8-byte align) can satisfy the alignment - // - LastRead = FALSE; - do { - if (WorkingBufferSize <= DataBufferSize) { - // - // It is the last calling to readblocks in this loop - // - DataBufferSize = WorkingBufferSize; - LastRead = TRUE; - } - - Status = BlockIo->ReadBlocks ( - BlockIo, - MediaId, - Lba, - DataBufferSize, - Data - ); - if (EFI_ERROR (Status)) { - goto Done; - } - - CopyMem (WorkingBuffer, Data, DataBufferSize); - WorkingBufferSize -= DataBufferSize; - WorkingBuffer += DataBufferSize; - Lba += DATA_BUFFER_BLOCK_NUM; - } while (!LastRead); - } - } - - if (!TransactionComplete && OverRun != 0) { - // - // Last read is not a complete block. - // - Status = BlockIo->ReadBlocks ( - BlockIo, - MediaId, - OverRunLba, - BlockSize, - Data - ); - - if (EFI_ERROR (Status)) { - goto Done; - } - - CopyMem (WorkingBuffer, Data, OverRun); - } - -Done: - if (PreData != NULL) { - FreePool (PreData); - } - - return Status; -} - - -/** - Read BufferSize bytes from Offset into Buffer. - Writes may require a read modify write to support writes that are not - aligned on sector boundaries. There are three cases: - UnderRun - The first byte is not on a sector boundary or the write request - is less than a sector in length. Read modify write is required. - Aligned - A write of N contiguous sectors. - OverRun - The last byte is not on a sector boundary. Read modified write - required. - - @param This Protocol instance pointer. - @param MediaId Id of the media, changes every time the media is replaced. - @param Offset The starting byte offset to read from - @param BufferSize Size of Buffer - @param Buffer Buffer containing read data - - @retval EFI_SUCCESS The data was written correctly to the device. - @retval EFI_WRITE_PROTECTED The device can not be written to. - @retval EFI_DEVICE_ERROR The device reported an error while performing the write. - @retval EFI_NO_MEDIA There is no media in the device. - @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device. - @retval EFI_INVALID_PARAMETER The write request contains device addresses that are not - valid for the device. - -**/ -EFI_STATUS -EFIAPI -DiskIoWriteDisk ( - IN EFI_DISK_IO_PROTOCOL *This, - IN UINT32 MediaId, - IN UINT64 Offset, - IN UINTN BufferSize, - IN VOID *Buffer - ) -{ - EFI_STATUS Status; - DISK_IO_PRIVATE_DATA *Private; - EFI_BLOCK_IO_PROTOCOL *BlockIo; - EFI_BLOCK_IO_MEDIA *Media; - UINT32 BlockSize; - UINT64 Lba; - UINT64 OverRunLba; - UINT32 UnderRun; - UINT32 OverRun; - BOOLEAN TransactionComplete; - UINTN WorkingBufferSize; - UINT8 *WorkingBuffer; - UINTN Length; - UINT8 *Data; - UINT8 *PreData; - UINTN IsBufferAligned; - UINTN DataBufferSize; - BOOLEAN LastWrite; - - Private = DISK_IO_PRIVATE_DATA_FROM_THIS (This); - - BlockIo = Private->BlockIo; - Media = BlockIo->Media; - BlockSize = Media->BlockSize; - - if (Media->ReadOnly) { - return EFI_WRITE_PROTECTED; - } - - if (Media->MediaId != MediaId) { - return EFI_MEDIA_CHANGED; - } - - DataBufferSize = BlockSize * DATA_BUFFER_BLOCK_NUM; - - if (Media->IoAlign > 1) { - PreData = AllocatePool (DataBufferSize + Media->IoAlign); - Data = PreData - ((UINTN) PreData & (Media->IoAlign - 1)) + Media->IoAlign; - } else { - PreData = AllocatePool (DataBufferSize); - Data = PreData; - } - - if (PreData == NULL) { - return EFI_OUT_OF_RESOURCES; - } - - WorkingBuffer = Buffer; - WorkingBufferSize = BufferSize; - - Lba = DivU64x32Remainder (Offset, BlockSize, &UnderRun); - - Length = BlockSize - UnderRun; - TransactionComplete = FALSE; - - Status = EFI_SUCCESS; - if (UnderRun != 0) { - // - // Offset starts in the middle of an Lba, so do read modify write. - // - Status = BlockIo->ReadBlocks ( - BlockIo, - MediaId, - Lba, - BlockSize, - Data - ); - - if (EFI_ERROR (Status)) { - goto Done; - } - - if (Length > BufferSize) { - Length = BufferSize; - TransactionComplete = TRUE; - } - - CopyMem (Data + UnderRun, WorkingBuffer, Length); - - Status = BlockIo->WriteBlocks ( - BlockIo, - MediaId, - Lba, - BlockSize, - Data - ); - if (EFI_ERROR (Status)) { - goto Done; - } - - WorkingBuffer += Length; - WorkingBufferSize -= Length; - if (WorkingBufferSize == 0) { - goto Done; - } - - Lba += 1; - } - - OverRunLba = Lba + DivU64x32Remainder (WorkingBufferSize, BlockSize, &OverRun); - - if (!TransactionComplete && WorkingBufferSize >= BlockSize) { - // - // If the DiskIo maps directly to a BlockIo device do the write. - // - if (OverRun != 0) { - WorkingBufferSize -= OverRun; - } - // - // Check buffer alignment - // - IsBufferAligned = (UINTN) WorkingBuffer & (UINTN) (Media->IoAlign - 1); - - if (Media->IoAlign <= 1 || IsBufferAligned == 0) { - // - // Alignment is satisfied, so write them together - // - Status = BlockIo->WriteBlocks ( - BlockIo, - MediaId, - Lba, - WorkingBufferSize, - WorkingBuffer - ); - - if (EFI_ERROR (Status)) { - goto Done; - } - - WorkingBuffer += WorkingBufferSize; - - } else { - // - // The buffer parameter is not aligned with the request - // So use the allocated instead. - // It can fit almost all the cases. - // - LastWrite = FALSE; - do { - if (WorkingBufferSize <= DataBufferSize) { - // - // It is the last calling to writeblocks in this loop - // - DataBufferSize = WorkingBufferSize; - LastWrite = TRUE; - } - - CopyMem (Data, WorkingBuffer, DataBufferSize); - Status = BlockIo->WriteBlocks ( - BlockIo, - MediaId, - Lba, - DataBufferSize, - Data - ); - if (EFI_ERROR (Status)) { - goto Done; - } - - WorkingBufferSize -= DataBufferSize; - WorkingBuffer += DataBufferSize; - Lba += DATA_BUFFER_BLOCK_NUM; - } while (!LastWrite); - } - } - - if (!TransactionComplete && OverRun != 0) { - // - // Last bit is not a complete block, so do a read modify write. - // - Status = BlockIo->ReadBlocks ( - BlockIo, - MediaId, - OverRunLba, - BlockSize, - Data - ); - - if (EFI_ERROR (Status)) { - goto Done; - } - - CopyMem (Data, WorkingBuffer, OverRun); - - Status = BlockIo->WriteBlocks ( - BlockIo, - MediaId, - OverRunLba, - BlockSize, - Data - ); - if (EFI_ERROR (Status)) { - goto Done; - } - } - -Done: - if (PreData != NULL) { - FreePool (PreData); - } - - return Status; -} - - -/** - The user Entry Point for module DiskIo. The user code starts with this function. - - @param[in] ImageHandle The firmware allocated handle for the EFI image. - @param[in] SystemTable A pointer to the EFI System Table. - - @retval EFI_SUCCESS The entry point is executed successfully. - @retval other Some error occurs when executing this entry point. - -**/ -EFI_STATUS -EFIAPI -InitializeDiskIo ( - IN EFI_HANDLE ImageHandle, - IN EFI_SYSTEM_TABLE *SystemTable - ) -{ - EFI_STATUS Status; - - // - // Install driver model protocol(s). - // - Status = EfiLibInstallAllDriverProtocols ( - ImageHandle, - SystemTable, - &gDiskIoDriverBinding, - ImageHandle, - &gDiskIoComponentName, - NULL, - NULL - ); - ASSERT_EFI_ERROR (Status); - - - return Status; -} - -- 2.39.2