/** @file This file implements protocol interfaces for ATA bus driver. This file implements protocol interfaces: Driver Binding protocol, Block IO protocol and DiskInfo protocol. Copyright (c) 2009 - 2013, 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 "AtaBus.h" UINT8 mMorControl; // // ATA Bus Driver Binding Protocol Instance // EFI_DRIVER_BINDING_PROTOCOL gAtaBusDriverBinding = { AtaBusDriverBindingSupported, AtaBusDriverBindingStart, AtaBusDriverBindingStop, 0x10, NULL, NULL }; // // Template for ATA Child Device. // ATA_DEVICE gAtaDeviceTemplate = { ATA_DEVICE_SIGNATURE, // Signature NULL, // Handle { // BlockIo EFI_BLOCK_IO_PROTOCOL_REVISION, NULL, AtaBlockIoReset, AtaBlockIoReadBlocks, AtaBlockIoWriteBlocks, AtaBlockIoFlushBlocks }, { // BlockIo2 NULL, AtaBlockIoResetEx, AtaBlockIoReadBlocksEx, AtaBlockIoWriteBlocksEx, AtaBlockIoFlushBlocksEx }, { // BlockMedia 0, // MediaId FALSE, // RemovableMedia TRUE, // MediaPresent FALSE, // LogicPartition FALSE, // ReadOnly FALSE, // WritingCache 0x200, // BlockSize 0, // IoAlign 0, // LastBlock 0, // LowestAlignedLba 1 // LogicalBlocksPerPhysicalBlock }, { // DiskInfo EFI_DISK_INFO_IDE_INTERFACE_GUID, AtaDiskInfoInquiry, AtaDiskInfoIdentify, AtaDiskInfoSenseData, AtaDiskInfoWhichIde }, NULL, // DevicePath { AtaStorageSecurityReceiveData, AtaStorageSecuritySendData }, NULL, // AtaBusDriverData 0, // Port 0, // PortMultiplierPort { 0, }, // Packet {{ 0}, }, // Acb NULL, // Asb FALSE, // UdmaValid FALSE, // Lba48Bit NULL, // IdentifyData NULL, // ControllerNameTable {L'\0', }, // ModelName {NULL, NULL}, // AtaTaskList {NULL, NULL}, // AtaSubTaskList FALSE // Abort }; /** Allocates an aligned buffer for ATA device. This function allocates an aligned buffer for the ATA device to perform ATA pass through operations. The alignment requirement is from ATA pass through interface. @param AtaDevice The ATA child device involved for the operation. @param BufferSize The request buffer size. @return A pointer to the aligned buffer or NULL if the allocation fails. **/ VOID * AllocateAlignedBuffer ( IN ATA_DEVICE *AtaDevice, IN UINTN BufferSize ) { return AllocateAlignedPages (EFI_SIZE_TO_PAGES (BufferSize), AtaDevice->AtaBusDriverData->AtaPassThru->Mode->IoAlign); } /** Frees an aligned buffer for ATA device. This function frees an aligned buffer for the ATA device to perform ATA pass through operations. @param Buffer The aligned buffer to be freed. @param BufferSize The request buffer size. **/ VOID FreeAlignedBuffer ( IN VOID *Buffer, IN UINTN BufferSize ) { if (Buffer != NULL) { FreeAlignedPages (Buffer, EFI_SIZE_TO_PAGES (BufferSize)); } } /** Release all the resources allocated for the ATA device. This function releases all the resources allocated for the ATA device. @param AtaDevice The ATA child device involved for the operation. **/ VOID ReleaseAtaResources ( IN ATA_DEVICE *AtaDevice ) { ATA_BUS_ASYN_SUB_TASK *SubTask; ATA_BUS_ASYN_TASK *AtaTask; LIST_ENTRY *Entry; LIST_ENTRY *DelEntry; EFI_TPL OldTpl; FreeUnicodeStringTable (AtaDevice->ControllerNameTable); FreeAlignedBuffer (AtaDevice->Asb, sizeof (EFI_ATA_STATUS_BLOCK)); FreeAlignedBuffer (AtaDevice->IdentifyData, sizeof (ATA_IDENTIFY_DATA)); if (AtaDevice->DevicePath != NULL) { FreePool (AtaDevice->DevicePath); } OldTpl = gBS->RaiseTPL (TPL_NOTIFY); if (!IsListEmpty (&AtaDevice->AtaSubTaskList)) { // // Free the Subtask list. // for(Entry = AtaDevice->AtaSubTaskList.ForwardLink; Entry != (&AtaDevice->AtaSubTaskList); ) { DelEntry = Entry; Entry = Entry->ForwardLink; SubTask = ATA_ASYN_SUB_TASK_FROM_ENTRY (DelEntry); RemoveEntryList (DelEntry); FreeAtaSubTask (SubTask); } } if (!IsListEmpty (&AtaDevice->AtaTaskList)) { // // Free the Subtask list. // for(Entry = AtaDevice->AtaTaskList.ForwardLink; Entry != (&AtaDevice->AtaTaskList); ) { DelEntry = Entry; Entry = Entry->ForwardLink; AtaTask = ATA_ASYN_TASK_FROM_ENTRY (DelEntry); RemoveEntryList (DelEntry); FreePool (AtaTask); } } gBS->RestoreTPL (OldTpl); FreePool (AtaDevice); } /** Registers an ATA device. This function allocates an ATA device structure for the ATA device specified by Port and PortMultiplierPort if the ATA device is identified as a valid one. Then it will create child handle and install Block IO and Disk Info protocol on it. @param AtaBusDriverData The parent ATA bus driver data structure. @param Port The port number of the ATA device. @param PortMultiplierPort The port multiplier port number of the ATA device. @retval EFI_SUCCESS The ATA device is successfully registered. @retval EFI_OUT_OF_RESOURCES There is not enough memory to allocate the ATA device and related data structures. @return Others Some error occurs when registering the ATA device. **/ EFI_STATUS RegisterAtaDevice ( IN OUT ATA_BUS_DRIVER_DATA *AtaBusDriverData, IN UINT16 Port, IN UINT16 PortMultiplierPort ) { EFI_STATUS Status; ATA_DEVICE *AtaDevice; EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru; EFI_DEVICE_PATH_PROTOCOL *NewDevicePathNode; EFI_DEVICE_PATH_PROTOCOL *DevicePath; EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath; EFI_HANDLE DeviceHandle; AtaDevice = NULL; NewDevicePathNode = NULL; DevicePath = NULL; RemainingDevicePath = NULL; // // Build device path // AtaPassThru = AtaBusDriverData->AtaPassThru; Status = AtaPassThru->BuildDevicePath (AtaPassThru, Port, PortMultiplierPort, &NewDevicePathNode); if (EFI_ERROR (Status)) { goto Done; } DevicePath = AppendDevicePathNode (AtaBusDriverData->ParentDevicePath, NewDevicePathNode); if (DevicePath == NULL) { Status = EFI_OUT_OF_RESOURCES; goto Done; } DeviceHandle = NULL; RemainingDevicePath = DevicePath; Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &RemainingDevicePath, &DeviceHandle); if (!EFI_ERROR (Status) && (DeviceHandle != NULL) && IsDevicePathEnd(RemainingDevicePath)) { Status = EFI_ALREADY_STARTED; FreePool (DevicePath); goto Done; } // // Allocate ATA device from the template. // AtaDevice = AllocateCopyPool (sizeof (ATA_DEVICE), &gAtaDeviceTemplate); if (AtaDevice == NULL) { Status = EFI_OUT_OF_RESOURCES; goto Done; } // // Initializes ATA device structures and allocates the required buffer. // AtaDevice->BlockIo.Media = &AtaDevice->BlockMedia; AtaDevice->BlockIo2.Media = &AtaDevice->BlockMedia; AtaDevice->AtaBusDriverData = AtaBusDriverData; AtaDevice->DevicePath = DevicePath; AtaDevice->Port = Port; AtaDevice->PortMultiplierPort = PortMultiplierPort; AtaDevice->Asb = AllocateAlignedBuffer (AtaDevice, sizeof (EFI_ATA_STATUS_BLOCK)); if (AtaDevice->Asb == NULL) { Status = EFI_OUT_OF_RESOURCES; goto Done; } AtaDevice->IdentifyData = AllocateAlignedBuffer (AtaDevice, sizeof (ATA_IDENTIFY_DATA)); if (AtaDevice->IdentifyData == NULL) { Status = EFI_OUT_OF_RESOURCES; goto Done; } // // Initial Ata Task List // InitializeListHead (&AtaDevice->AtaTaskList); InitializeListHead (&AtaDevice->AtaSubTaskList); // // Report Status Code to indicate the ATA device will be enabled // REPORT_STATUS_CODE_WITH_DEVICE_PATH ( EFI_PROGRESS_CODE, (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_PC_ENABLE), AtaBusDriverData->ParentDevicePath ); // // Try to identify the ATA device via the ATA pass through command. // Status = DiscoverAtaDevice (AtaDevice); if (EFI_ERROR (Status)) { goto Done; } // // Build controller name for Component Name (2) protocol. // Status = AddUnicodeString2 ( "eng", gAtaBusComponentName.SupportedLanguages, &AtaDevice->ControllerNameTable, AtaDevice->ModelName, TRUE ); if (EFI_ERROR (Status)) { goto Done; } Status = AddUnicodeString2 ( "en", gAtaBusComponentName2.SupportedLanguages, &AtaDevice->ControllerNameTable, AtaDevice->ModelName, FALSE ); if (EFI_ERROR (Status)) { goto Done; } // // Update to AHCI interface GUID based on device path node. The default one // is IDE interface GUID copied from template. // if (NewDevicePathNode->SubType == MSG_SATA_DP) { CopyGuid (&AtaDevice->DiskInfo.Interface, &gEfiDiskInfoAhciInterfaceGuid); } Status = gBS->InstallMultipleProtocolInterfaces ( &AtaDevice->Handle, &gEfiDevicePathProtocolGuid, AtaDevice->DevicePath, &gEfiBlockIoProtocolGuid, &AtaDevice->BlockIo, &gEfiBlockIo2ProtocolGuid, &AtaDevice->BlockIo2, &gEfiDiskInfoProtocolGuid, &AtaDevice->DiskInfo, NULL ); if (EFI_ERROR (Status)) { goto Done; } // // See if the ata device support trust computing feature or not. // If yes, then install Storage Security Protocol at the ata device handle. // if ((AtaDevice->IdentifyData->trusted_computing_support & BIT0) != 0) { DEBUG ((EFI_D_INFO, "Found TCG support in Port %x PortMultiplierPort %x\n", Port, PortMultiplierPort)); Status = gBS->InstallProtocolInterface ( &AtaDevice->Handle, &gEfiStorageSecurityCommandProtocolGuid, EFI_NATIVE_INTERFACE, &AtaDevice->StorageSecurity ); if (EFI_ERROR (Status)) { goto Done; } DEBUG ((EFI_D_INFO, "Successfully Install Storage Security Protocol on the ATA device\n")); } if (((mMorControl & 0x01) == 0x01) && ((AtaDevice->IdentifyData->trusted_computing_support & BIT0) != 0)) { DEBUG ((EFI_D_INFO, "mMorControl = %x, AtaDevice->IdentifyData->trusted_computing_support & BIT0 = %x\n", mMorControl, (AtaDevice->IdentifyData->trusted_computing_support & BIT0) )); DEBUG ((EFI_D_INFO, "Try to lock device by sending TPer Reset command...\n")); InitiateTPerReset(AtaDevice); } gBS->OpenProtocol ( AtaBusDriverData->Controller, &gEfiAtaPassThruProtocolGuid, (VOID **) &AtaPassThru, AtaBusDriverData->DriverBindingHandle, AtaDevice->Handle, EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER ); Done: if (NewDevicePathNode != NULL) { FreePool (NewDevicePathNode); } if (EFI_ERROR (Status) && (AtaDevice != NULL)) { ReleaseAtaResources (AtaDevice); DEBUG ((EFI_D_ERROR | EFI_D_INIT, "Failed to initialize Port %x PortMultiplierPort %x, status = %r\n", Port, PortMultiplierPort, Status)); } return Status; } /** Unregisters an ATA device. This function removes the protocols installed on the controller handle and frees the resources allocated for the ATA device. @param This The pointer to EFI_DRIVER_BINDING_PROTOCOL instance. @param Controller The controller handle of the ATA device. @param Handle The child handle. @retval EFI_SUCCESS The ATA device is successfully unregistered. @return Others Some error occurs when unregistering the ATA device. **/ EFI_STATUS UnregisterAtaDevice ( IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Controller, IN EFI_HANDLE Handle ) { EFI_STATUS Status; EFI_BLOCK_IO_PROTOCOL *BlockIo; EFI_BLOCK_IO2_PROTOCOL *BlockIo2; ATA_DEVICE *AtaDevice; EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru; EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *StorageSecurity; BlockIo2 = NULL; BlockIo = NULL; Status = gBS->OpenProtocol ( Handle, &gEfiBlockIoProtocolGuid, (VOID **) &BlockIo, This->DriverBindingHandle, Controller, EFI_OPEN_PROTOCOL_GET_PROTOCOL ); if (EFI_ERROR (Status)) { // // Locate BlockIo2 protocol // Status = gBS->OpenProtocol ( Handle, &gEfiBlockIo2ProtocolGuid, (VOID **) &BlockIo2, This->DriverBindingHandle, Controller, EFI_OPEN_PROTOCOL_GET_PROTOCOL ); if (EFI_ERROR (Status)) { return Status; } } // // Get AtaDevice data. // if (BlockIo != NULL) { AtaDevice = ATA_DEVICE_FROM_BLOCK_IO (BlockIo); } else { ASSERT (BlockIo2 != NULL); AtaDevice = ATA_DEVICE_FROM_BLOCK_IO2 (BlockIo2); } // // Close the child handle // gBS->CloseProtocol ( Controller, &gEfiAtaPassThruProtocolGuid, This->DriverBindingHandle, Handle ); // // The Ata Bus driver installs the BlockIo and BlockIo2 in the DriverBindingStart(). // Here should uninstall both of them. // Status = gBS->UninstallMultipleProtocolInterfaces ( Handle, &gEfiDevicePathProtocolGuid, AtaDevice->DevicePath, &gEfiBlockIoProtocolGuid, &AtaDevice->BlockIo, &gEfiBlockIo2ProtocolGuid, &AtaDevice->BlockIo2, &gEfiDiskInfoProtocolGuid, &AtaDevice->DiskInfo, NULL ); if (EFI_ERROR (Status)) { gBS->OpenProtocol ( Controller, &gEfiAtaPassThruProtocolGuid, (VOID **) &AtaPassThru, This->DriverBindingHandle, Handle, EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER ); return Status; } // // If Storage Security Command Protocol is installed, then uninstall this protocol. // Status = gBS->OpenProtocol ( Handle, &gEfiStorageSecurityCommandProtocolGuid, (VOID **) &StorageSecurity, This->DriverBindingHandle, Controller, EFI_OPEN_PROTOCOL_GET_PROTOCOL ); if (!EFI_ERROR (Status)) { Status = gBS->UninstallProtocolInterface ( Handle, &gEfiStorageSecurityCommandProtocolGuid, &AtaDevice->StorageSecurity ); if (EFI_ERROR (Status)) { gBS->OpenProtocol ( Controller, &gEfiAtaPassThruProtocolGuid, (VOID **) &AtaPassThru, This->DriverBindingHandle, Handle, EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER ); return Status; } } ReleaseAtaResources (AtaDevice); return EFI_SUCCESS; } /** Tests to see if this driver supports a given controller. If a child device is provided, it further tests to see if this driver supports creating a handle for the specified child device. This function checks to see if the driver specified by This supports the device specified by ControllerHandle. Drivers will typically use the device path attached to ControllerHandle and/or the services from the bus I/O abstraction attached to ControllerHandle to determine if the driver supports ControllerHandle. This function may be called many times during platform initialization. In order to reduce boot times, the tests performed by this function must be very small, and take as little time as possible to execute. This function must not change the state of any hardware devices, and this function must be aware that the device specified by ControllerHandle may already be managed by the same driver or a different driver. This function must match its calls to AllocatePages() with FreePages(), AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol(). Since ControllerHandle may have been previously started by the same driver, if a protocol is already in the opened state, then it must not be closed with CloseProtocol(). This is required to guarantee the state of ControllerHandle is not modified by this function. @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. @param[in] ControllerHandle The handle of the controller to test. This handle must support a protocol interface that supplies an I/O abstraction to the driver. @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This parameter is ignored by device drivers, and is optional for bus drivers. For bus drivers, if this parameter is not NULL, then the bus driver must determine if the bus controller specified by ControllerHandle and the child controller specified by RemainingDevicePath are both supported by this bus driver. @retval EFI_SUCCESS The device specified by ControllerHandle and RemainingDevicePath is supported by the driver specified by This. @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and RemainingDevicePath is already being managed by the driver specified by This. @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and RemainingDevicePath is already being managed by a different driver or an application that requires exclusive access. Currently not implemented. @retval EFI_UNSUPPORTED The device specified by ControllerHandle and RemainingDevicePath is not supported by the driver specified by This. **/ EFI_STATUS EFIAPI AtaBusDriverBindingSupported ( IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath ) { EFI_STATUS Status; EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath; EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru; UINT16 Port; UINT16 PortMultiplierPort; // // Test EFI_ATA_PASS_THRU_PROTOCOL on controller handle. // Status = gBS->OpenProtocol ( Controller, &gEfiAtaPassThruProtocolGuid, (VOID **) &AtaPassThru, This->DriverBindingHandle, Controller, EFI_OPEN_PROTOCOL_BY_DRIVER ); if (Status == EFI_ALREADY_STARTED) { return EFI_SUCCESS; } if (EFI_ERROR (Status)) { return Status; } // // Test to see if this ATA Pass Thru Protocol is for a LOGICAL channel // if ((AtaPassThru->Mode->Attributes & EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL) == 0) { // // Close the I/O Abstraction(s) used to perform the supported test // gBS->CloseProtocol ( Controller, &gEfiAtaPassThruProtocolGuid, This->DriverBindingHandle, Controller ); return EFI_UNSUPPORTED; } // // Test RemainingDevicePath is valid or not. // if ((RemainingDevicePath != NULL) && !IsDevicePathEnd (RemainingDevicePath)) { Status = AtaPassThru->GetDevice (AtaPassThru, RemainingDevicePath, &Port, &PortMultiplierPort); if (EFI_ERROR (Status)) { // // Close the I/O Abstraction(s) used to perform the supported test // gBS->CloseProtocol ( Controller, &gEfiAtaPassThruProtocolGuid, This->DriverBindingHandle, Controller ); return Status; } } // // Close the I/O Abstraction(s) used to perform the supported test // gBS->CloseProtocol ( Controller, &gEfiAtaPassThruProtocolGuid, This->DriverBindingHandle, Controller ); // // Open the EFI Device Path protocol needed to perform the supported test // Status = gBS->OpenProtocol ( Controller, &gEfiDevicePathProtocolGuid, (VOID **) &ParentDevicePath, This->DriverBindingHandle, Controller, EFI_OPEN_PROTOCOL_GET_PROTOCOL ); return Status; } /** Starts a device controller or a bus controller. The Start() function is designed to be invoked from the EFI boot service ConnectController(). As a result, much of the error checking on the parameters to Start() has been moved into this common boot service. It is legal to call Start() from other locations, but the following calling restrictions must be followed or the system behavior will not be deterministic. 1. ControllerHandle must be a valid EFI_HANDLE. 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned EFI_DEVICE_PATH_PROTOCOL. 3. Prior to calling Start(), the Supported() function for the driver specified by This must have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS. @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. @param[in] ControllerHandle The handle of the controller to start. This handle must support a protocol interface that supplies an I/O abstraction to the driver. @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This parameter is ignored by device drivers, and is optional for bus drivers. For a bus driver, if this parameter is NULL, then handles for all the children of Controller are created by this driver. If this parameter is not NULL and the first Device Path Node is not the End of Device Path Node, then only the handle for the child device specified by the first Device Path Node of RemainingDevicePath is created by this driver. If the first Device Path Node of RemainingDevicePath is the End of Device Path Node, no child handle is created by this driver. @retval EFI_SUCCESS The device was started. @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented. @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources. @retval Others The driver failded to start the device. **/ EFI_STATUS EFIAPI AtaBusDriverBindingStart ( IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath ) { EFI_STATUS Status; EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru; EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath; ATA_BUS_DRIVER_DATA *AtaBusDriverData; UINT16 Port; UINT16 PortMultiplierPort; AtaBusDriverData = NULL; Status = gBS->OpenProtocol ( Controller, &gEfiDevicePathProtocolGuid, (VOID **) &ParentDevicePath, This->DriverBindingHandle, Controller, EFI_OPEN_PROTOCOL_GET_PROTOCOL ); if (EFI_ERROR (Status)) { return Status; } // // Report Status Code to indicate ATA bus starts // REPORT_STATUS_CODE_WITH_DEVICE_PATH ( EFI_PROGRESS_CODE, (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_PC_INIT), ParentDevicePath ); Status = gBS->OpenProtocol ( Controller, &gEfiAtaPassThruProtocolGuid, (VOID **) &AtaPassThru, This->DriverBindingHandle, Controller, EFI_OPEN_PROTOCOL_BY_DRIVER ); if ((EFI_ERROR (Status)) && (Status != EFI_ALREADY_STARTED)) { goto ErrorExit; } // // Check EFI_ALREADY_STARTED to reuse the original ATA_BUS_DRIVER_DATA. // if (Status != EFI_ALREADY_STARTED) { AtaBusDriverData = AllocateZeroPool (sizeof (ATA_BUS_DRIVER_DATA)); if (AtaBusDriverData == NULL) { Status = EFI_OUT_OF_RESOURCES; goto ErrorExit; } AtaBusDriverData->AtaPassThru = AtaPassThru; AtaBusDriverData->Controller = Controller; AtaBusDriverData->ParentDevicePath = ParentDevicePath; AtaBusDriverData->DriverBindingHandle = This->DriverBindingHandle; Status = gBS->InstallMultipleProtocolInterfaces ( &Controller, &gEfiCallerIdGuid, AtaBusDriverData, NULL ); if (EFI_ERROR (Status)) { goto ErrorExit; } } else { Status = gBS->OpenProtocol ( Controller, &gEfiCallerIdGuid, (VOID **) &AtaBusDriverData, This->DriverBindingHandle, Controller, EFI_OPEN_PROTOCOL_GET_PROTOCOL ); if (EFI_ERROR (Status)) { AtaBusDriverData = NULL; goto ErrorExit; } } // // Report Status Code to indicate detecting devices on bus // REPORT_STATUS_CODE_WITH_DEVICE_PATH ( EFI_PROGRESS_CODE, (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_PC_DETECT), ParentDevicePath ); if (RemainingDevicePath == NULL) { Port = 0xFFFF; while (TRUE) { Status = AtaPassThru->GetNextPort (AtaPassThru, &Port); if (EFI_ERROR (Status)) { // // We cannot find more legal port then we are done. // break; } PortMultiplierPort = 0xFFFF; while (TRUE) { Status = AtaPassThru->GetNextDevice (AtaPassThru, Port, &PortMultiplierPort); if (EFI_ERROR (Status)) { // // We cannot find more legal port multiplier port number for ATA device // on the port, then we are done. // break; } RegisterAtaDevice (AtaBusDriverData, Port, PortMultiplierPort); } } Status = EFI_SUCCESS; } else if (!IsDevicePathEnd (RemainingDevicePath)) { Status = AtaPassThru->GetDevice (AtaPassThru, RemainingDevicePath, &Port, &PortMultiplierPort); if (!EFI_ERROR (Status)) { Status = RegisterAtaDevice (AtaBusDriverData,Port, PortMultiplierPort); } } return Status; ErrorExit: if (AtaBusDriverData != NULL) { gBS->UninstallMultipleProtocolInterfaces ( Controller, &gEfiCallerIdGuid, AtaBusDriverData, NULL ); FreePool (AtaBusDriverData); } gBS->CloseProtocol ( Controller, &gEfiAtaPassThruProtocolGuid, This->DriverBindingHandle, Controller ); return Status; } /** Stops a device controller or a bus controller. The Stop() function is designed to be invoked from the EFI boot service DisconnectController(). As a result, much of the error checking on the parameters to Stop() has been moved into this common boot service. It is legal to call Stop() from other locations, but the following calling restrictions must be followed or the system behavior will not be deterministic. 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this same driver's Start() function. 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid EFI_HANDLE. In addition, all of these handles must have been created in this driver's Start() function, and the Start() function must have called OpenProtocol() on ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER. @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. @param[in] ControllerHandle A handle to the device being stopped. The handle must support a bus specific I/O protocol for the driver to use to stop the device. @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer. @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL if NumberOfChildren is 0. @retval EFI_SUCCESS The device was stopped. @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error. **/ EFI_STATUS EFIAPI AtaBusDriverBindingStop ( IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Controller, IN UINTN NumberOfChildren, IN EFI_HANDLE *ChildHandleBuffer ) { EFI_STATUS Status; BOOLEAN AllChildrenStopped; UINTN Index; ATA_BUS_DRIVER_DATA *AtaBusDriverData; if (NumberOfChildren == 0) { Status = gBS->OpenProtocol ( Controller, &gEfiCallerIdGuid, (VOID **) &AtaBusDriverData, This->DriverBindingHandle, Controller, EFI_OPEN_PROTOCOL_GET_PROTOCOL ); if (!EFI_ERROR (Status)) { gBS->UninstallMultipleProtocolInterfaces ( Controller, &gEfiCallerIdGuid, AtaBusDriverData, NULL ); FreePool (AtaBusDriverData); } gBS->CloseProtocol ( Controller, &gEfiAtaPassThruProtocolGuid, This->DriverBindingHandle, Controller ); return EFI_SUCCESS; } AllChildrenStopped = TRUE; for (Index = 0; Index < NumberOfChildren; Index++) { Status = UnregisterAtaDevice (This, Controller, ChildHandleBuffer[Index]); if (EFI_ERROR (Status)) { AllChildrenStopped = FALSE; } } if (!AllChildrenStopped) { return EFI_DEVICE_ERROR; } return EFI_SUCCESS; } /** Reset the Block Device. @param This Indicates a pointer to the calling context. @param ExtendedVerification Driver may perform diagnostics on reset. @retval EFI_SUCCESS The device was reset. @retval EFI_DEVICE_ERROR The device is not functioning properly and could not be reset. **/ EFI_STATUS EFIAPI AtaBlockIoReset ( IN EFI_BLOCK_IO_PROTOCOL *This, IN BOOLEAN ExtendedVerification ) { EFI_STATUS Status; ATA_DEVICE *AtaDevice; EFI_TPL OldTpl; OldTpl = gBS->RaiseTPL (TPL_CALLBACK); AtaDevice = ATA_DEVICE_FROM_BLOCK_IO (This); Status = ResetAtaDevice (AtaDevice); if (EFI_ERROR (Status)) { Status = EFI_DEVICE_ERROR; } gBS->RestoreTPL (OldTpl); return Status; } /** Read/Write BufferSize bytes from Lba from/into Buffer. @param[in] This Indicates a pointer to the calling context. Either be block I/O or block I/O2. @param[in] MediaId The media ID that the read/write request is for. @param[in] Lba The starting logical block address to be read/written. The caller is responsible for reading/writing to only legitimate locations. @param[in, out] Token A pointer to the token associated with the transaction. @param[in] BufferSize Size of Buffer, must be a multiple of device block size. @param[out] Buffer A pointer to the destination/source buffer for the data. @param[in] IsBlockIo2 Indicate the calling is from BlockIO or BlockIO2. TURE is from BlockIO2, FALSE is for BlockIO. @param[in] IsWrite Indicates whether it is a write operation. @retval EFI_SUCCESS The data was read/written correctly to the device. @retval EFI_WRITE_PROTECTED The device can not be read/written to. @retval EFI_DEVICE_ERROR The device reported an error while performing the read/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_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device. @retval EFI_INVALID_PARAMETER The read/write request contains LBAs that are not valid, or the buffer is not on proper alignment. **/ EFI_STATUS BlockIoReadWrite ( IN VOID *This, IN UINT32 MediaId, IN EFI_LBA Lba, IN OUT EFI_BLOCK_IO2_TOKEN *Token, IN UINTN BufferSize, OUT VOID *Buffer, IN BOOLEAN IsBlockIo2, IN BOOLEAN IsWrite ) { ATA_DEVICE *AtaDevice; EFI_STATUS Status; EFI_TPL OldTpl; EFI_BLOCK_IO_MEDIA *Media; UINTN BlockSize; UINTN NumberOfBlocks; UINTN IoAlign; if (IsBlockIo2) { Media = ((EFI_BLOCK_IO2_PROTOCOL *) This)->Media; AtaDevice = ATA_DEVICE_FROM_BLOCK_IO2 (This); } else { Media = ((EFI_BLOCK_IO_PROTOCOL *) This)->Media; AtaDevice = ATA_DEVICE_FROM_BLOCK_IO (This); } if (MediaId != Media->MediaId) { return EFI_MEDIA_CHANGED; } // // Check parameters. // if (Buffer == NULL) { return EFI_INVALID_PARAMETER; } if (BufferSize == 0) { return EFI_SUCCESS; } BlockSize = Media->BlockSize; if ((BufferSize % BlockSize) != 0) { return EFI_BAD_BUFFER_SIZE; } NumberOfBlocks = BufferSize / BlockSize; if ((Lba + NumberOfBlocks - 1) > Media->LastBlock) { return EFI_INVALID_PARAMETER; } IoAlign = Media->IoAlign; if (IoAlign > 0 && (((UINTN) Buffer & (IoAlign - 1)) != 0)) { return EFI_INVALID_PARAMETER; } OldTpl = gBS->RaiseTPL (TPL_CALLBACK); // // Invoke low level AtaDevice Access Routine. // Status = AccessAtaDevice (AtaDevice, Buffer, Lba, NumberOfBlocks, IsWrite, Token); gBS->RestoreTPL (OldTpl); return Status; } /** Read BufferSize bytes from Lba into Buffer. @param This Indicates a pointer to the calling context. @param MediaId Id of the media, changes every time the media is replaced. @param Lba The starting Logical Block Address to read from @param BufferSize Size of Buffer, must be a multiple of device block size. @param Buffer A pointer to the destination buffer for the data. The caller is responsible for either having implicit or explicit ownership of the buffer. @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_CHANGED The MediaId does not matched the current device. @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device. @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid, or the buffer is not on proper alignment. **/ EFI_STATUS EFIAPI AtaBlockIoReadBlocks ( IN EFI_BLOCK_IO_PROTOCOL *This, IN UINT32 MediaId, IN EFI_LBA Lba, IN UINTN BufferSize, OUT VOID *Buffer ) { return BlockIoReadWrite ((VOID *) This, MediaId, Lba, NULL, BufferSize, Buffer, FALSE, FALSE); } /** Write BufferSize bytes from Lba into Buffer. @param This Indicates a pointer to the calling context. @param MediaId The media ID that the write request is for. @param Lba The starting logical block address to be written. The caller is responsible for writing to only legitimate locations. @param BufferSize Size of Buffer, must be a multiple of device block size. @param Buffer A pointer to the source buffer for the 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_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device. @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid, or the buffer is not on proper alignment. **/ EFI_STATUS EFIAPI AtaBlockIoWriteBlocks ( IN EFI_BLOCK_IO_PROTOCOL *This, IN UINT32 MediaId, IN EFI_LBA Lba, IN UINTN BufferSize, IN VOID *Buffer ) { return BlockIoReadWrite ((VOID *) This, MediaId, Lba, NULL, BufferSize, Buffer, FALSE, TRUE); } /** Flush the Block Device. @param This Indicates a pointer to the calling context. @retval EFI_SUCCESS All outstanding data was written to the device @retval EFI_DEVICE_ERROR The device reported an error while writing back the data @retval EFI_NO_MEDIA There is no media in the device. **/ EFI_STATUS EFIAPI AtaBlockIoFlushBlocks ( IN EFI_BLOCK_IO_PROTOCOL *This ) { // // return directly // return EFI_SUCCESS; } /** Reset the Block Device. @param[in] This Indicates a pointer to the calling context. @param[in] ExtendedVerification Driver may perform diagnostics on reset. @retval EFI_SUCCESS The device was reset. @retval EFI_DEVICE_ERROR The device is not functioning properly and could not be reset. **/ EFI_STATUS EFIAPI AtaBlockIoResetEx ( IN EFI_BLOCK_IO2_PROTOCOL *This, IN BOOLEAN ExtendedVerification ) { EFI_STATUS Status; ATA_DEVICE *AtaDevice; EFI_TPL OldTpl; OldTpl = gBS->RaiseTPL (TPL_CALLBACK); AtaDevice = ATA_DEVICE_FROM_BLOCK_IO2 (This); AtaTerminateNonBlockingTask (AtaDevice); Status = ResetAtaDevice (AtaDevice); if (EFI_ERROR (Status)) { Status = EFI_DEVICE_ERROR; } gBS->RestoreTPL (OldTpl); return Status; } /** Read BufferSize bytes from Lba into Buffer. @param[in] This Indicates a pointer to the calling context. @param[in] MediaId Id of the media, changes every time the media is replaced. @param[in] Lba The starting Logical Block Address to read from. @param[in, out] Token A pointer to the token associated with the transaction. @param[in] BufferSize Size of Buffer, must be a multiple of device block size. @param[out] Buffer A pointer to the destination buffer for the data. The caller is responsible for either having implicit or explicit ownership of the buffer. @retval EFI_SUCCESS The read request was queued if Event is not NULL. The data was read correctly from the device if the Event is NULL. @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_CHANGED The MediaId is not for the current media. @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device. @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid, or the buffer is not on proper alignment. @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources. **/ EFI_STATUS EFIAPI AtaBlockIoReadBlocksEx ( IN EFI_BLOCK_IO2_PROTOCOL *This, IN UINT32 MediaId, IN EFI_LBA Lba, IN OUT EFI_BLOCK_IO2_TOKEN *Token, IN UINTN BufferSize, OUT VOID *Buffer ) { return BlockIoReadWrite ((VOID *) This, MediaId, Lba, Token, BufferSize, Buffer, TRUE, FALSE); } /** Write BufferSize bytes from Lba into Buffer. @param[in] This Indicates a pointer to the calling context. @param[in] MediaId The media ID that the write request is for. @param[in] Lba The starting logical block address to be written. The caller is responsible for writing to only legitimate locations. @param[in, out] Token A pointer to the token associated with the transaction. @param[in] BufferSize Size of Buffer, must be a multiple of device block size. @param[in] Buffer A pointer to the source buffer for the 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_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device. @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid, or the buffer is not on proper alignment. **/ EFI_STATUS EFIAPI AtaBlockIoWriteBlocksEx ( IN EFI_BLOCK_IO2_PROTOCOL *This, IN UINT32 MediaId, IN EFI_LBA Lba, IN OUT EFI_BLOCK_IO2_TOKEN *Token, IN UINTN BufferSize, IN VOID *Buffer ) { return BlockIoReadWrite ((VOID *) This, MediaId, Lba, Token, BufferSize, Buffer, TRUE, TRUE); } /** Flush the Block Device. @param[in] This Indicates a pointer to the calling context. @param[in, out] Token A pointer to the token associated with the transaction. @retval EFI_SUCCESS All outstanding data was written to the device @retval EFI_DEVICE_ERROR The device reported an error while writing back the data @retval EFI_NO_MEDIA There is no media in the device. **/ EFI_STATUS EFIAPI AtaBlockIoFlushBlocksEx ( IN EFI_BLOCK_IO2_PROTOCOL *This, IN OUT EFI_BLOCK_IO2_TOKEN *Token ) { // // Signal event and return directly. // if (Token != NULL && Token->Event != NULL) { Token->TransactionStatus = EFI_SUCCESS; gBS->SignalEvent (Token->Event); } return EFI_SUCCESS; } /** Provides inquiry information for the controller type. This function is used by the IDE bus driver to get inquiry data. Data format of Identify data is defined by the Interface GUID. @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance. @param[in, out] InquiryData Pointer to a buffer for the inquiry data. @param[in, out] InquiryDataSize Pointer to the value for the inquiry data size. @retval EFI_SUCCESS The command was accepted without any errors. @retval EFI_NOT_FOUND Device does not support this data class @retval EFI_DEVICE_ERROR Error reading InquiryData from device @retval EFI_BUFFER_TOO_SMALL InquiryDataSize not big enough **/ EFI_STATUS EFIAPI AtaDiskInfoInquiry ( IN EFI_DISK_INFO_PROTOCOL *This, IN OUT VOID *InquiryData, IN OUT UINT32 *InquiryDataSize ) { return EFI_NOT_FOUND; } /** Provides identify information for the controller type. This function is used by the IDE bus driver to get identify data. Data format of Identify data is defined by the Interface GUID. @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance. @param[in, out] IdentifyData Pointer to a buffer for the identify data. @param[in, out] IdentifyDataSize Pointer to the value for the identify data size. @retval EFI_SUCCESS The command was accepted without any errors. @retval EFI_NOT_FOUND Device does not support this data class @retval EFI_DEVICE_ERROR Error reading IdentifyData from device @retval EFI_BUFFER_TOO_SMALL IdentifyDataSize not big enough **/ EFI_STATUS EFIAPI AtaDiskInfoIdentify ( IN EFI_DISK_INFO_PROTOCOL *This, IN OUT VOID *IdentifyData, IN OUT UINT32 *IdentifyDataSize ) { EFI_STATUS Status; ATA_DEVICE *AtaDevice; AtaDevice = ATA_DEVICE_FROM_DISK_INFO (This); Status = EFI_BUFFER_TOO_SMALL; if (*IdentifyDataSize >= sizeof (ATA_IDENTIFY_DATA)) { Status = EFI_SUCCESS; CopyMem (IdentifyData, AtaDevice->IdentifyData, sizeof (ATA_IDENTIFY_DATA)); } *IdentifyDataSize = sizeof (ATA_IDENTIFY_DATA); return Status; } /** Provides sense data information for the controller type. This function is used by the IDE bus driver to get sense data. Data format of Sense data is defined by the Interface GUID. @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance. @param[in, out] SenseData Pointer to the SenseData. @param[in, out] SenseDataSize Size of SenseData in bytes. @param[out] SenseDataNumber Pointer to the value for the sense data size. @retval EFI_SUCCESS The command was accepted without any errors. @retval EFI_NOT_FOUND Device does not support this data class. @retval EFI_DEVICE_ERROR Error reading SenseData from device. @retval EFI_BUFFER_TOO_SMALL SenseDataSize not big enough. **/ EFI_STATUS EFIAPI AtaDiskInfoSenseData ( IN EFI_DISK_INFO_PROTOCOL *This, IN OUT VOID *SenseData, IN OUT UINT32 *SenseDataSize, OUT UINT8 *SenseDataNumber ) { return EFI_NOT_FOUND; } /** This function is used by the IDE bus driver to get controller information. @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance. @param[out] IdeChannel Pointer to the Ide Channel number. Primary or secondary. @param[out] IdeDevice Pointer to the Ide Device number. Master or slave. @retval EFI_SUCCESS IdeChannel and IdeDevice are valid. @retval EFI_UNSUPPORTED This is not an IDE device. **/ EFI_STATUS EFIAPI AtaDiskInfoWhichIde ( IN EFI_DISK_INFO_PROTOCOL *This, OUT UINT32 *IdeChannel, OUT UINT32 *IdeDevice ) { ATA_DEVICE *AtaDevice; AtaDevice = ATA_DEVICE_FROM_DISK_INFO (This); *IdeChannel = AtaDevice->Port; *IdeDevice = AtaDevice->PortMultiplierPort; return EFI_SUCCESS; } /** Send a security protocol command to a device that receives data and/or the result of one or more commands sent by SendData. The ReceiveData function sends a security protocol command to the given MediaId. The security protocol command sent is defined by SecurityProtocolId and contains the security protocol specific data SecurityProtocolSpecificData. The function returns the data from the security protocol command in PayloadBuffer. For devices supporting the SCSI command set, the security protocol command is sent using the SECURITY PROTOCOL IN command defined in SPC-4. For devices supporting the ATA command set, the security protocol command is sent using one of the TRUSTED RECEIVE commands defined in ATA8-ACS if PayloadBufferSize is non-zero. If the PayloadBufferSize is zero, the security protocol command is sent using the Trusted Non-Data command defined in ATA8-ACS. If PayloadBufferSize is too small to store the available data from the security protocol command, the function shall copy PayloadBufferSize bytes into the PayloadBuffer and return EFI_WARN_BUFFER_TOO_SMALL. If PayloadBuffer or PayloadTransferSize is NULL and PayloadBufferSize is non-zero, the function shall return EFI_INVALID_PARAMETER. If the given MediaId does not support security protocol commands, the function shall return EFI_UNSUPPORTED. If there is no media in the device, the function returns EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the device, the function returns EFI_MEDIA_CHANGED. If the security protocol fails to complete within the Timeout period, the function shall return EFI_TIMEOUT. If the security protocol command completes without an error, the function shall return EFI_SUCCESS. If the security protocol command completes with an error, the function shall return EFI_DEVICE_ERROR. @param This Indicates a pointer to the calling context. @param MediaId ID of the medium to receive data from. @param Timeout The timeout, in 100ns units, to use for the execution of the security protocol command. A Timeout value of 0 means that this function will wait indefinitely for the security protocol command to execute. If Timeout is greater than zero, then this function will return EFI_TIMEOUT if the time required to execute the receive data command is greater than Timeout. @param SecurityProtocolId The value of the "Security Protocol" parameter of the security protocol command to be sent. @param SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter of the security protocol command to be sent. @param PayloadBufferSize Size in bytes of the payload data buffer. @param PayloadBuffer A pointer to a destination buffer to store the security protocol command specific payload data for the security protocol command. The caller is responsible for having either implicit or explicit ownership of the buffer. @param PayloadTransferSize A pointer to a buffer to store the size in bytes of the data written to the payload data buffer. @retval EFI_SUCCESS The security protocol command completed successfully. @retval EFI_WARN_BUFFER_TOO_SMALL The PayloadBufferSize was too small to store the available data from the device. The PayloadBuffer contains the truncated data. @retval EFI_UNSUPPORTED The given MediaId does not support security protocol commands. @retval EFI_DEVICE_ERROR The security protocol command completed with an error. @retval EFI_NO_MEDIA There is no media in the device. @retval EFI_MEDIA_CHANGED The MediaId is not for the current media. @retval EFI_INVALID_PARAMETER The PayloadBuffer or PayloadTransferSize is NULL and PayloadBufferSize is non-zero. @retval EFI_TIMEOUT A timeout occurred while waiting for the security protocol command to execute. **/ EFI_STATUS EFIAPI AtaStorageSecurityReceiveData ( IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *This, IN UINT32 MediaId, IN UINT64 Timeout, IN UINT8 SecurityProtocolId, IN UINT16 SecurityProtocolSpecificData, IN UINTN PayloadBufferSize, OUT VOID *PayloadBuffer, OUT UINTN *PayloadTransferSize ) { EFI_STATUS Status; ATA_DEVICE *Private; EFI_TPL OldTpl; DEBUG ((EFI_D_INFO, "EFI Storage Security Protocol - Read")); if ((PayloadBuffer == NULL || PayloadTransferSize == NULL) && PayloadBufferSize != 0) { return EFI_INVALID_PARAMETER; } Status = EFI_SUCCESS; Private = ATA_DEVICE_FROM_STORAGE_SECURITY (This); if (MediaId != Private->BlockIo.Media->MediaId) { return EFI_MEDIA_CHANGED; } if (!Private->BlockIo.Media->MediaPresent) { return EFI_NO_MEDIA; } OldTpl = gBS->RaiseTPL (TPL_CALLBACK); Status = TrustTransferAtaDevice ( Private, PayloadBuffer, SecurityProtocolId, SecurityProtocolSpecificData, PayloadBufferSize, FALSE, Timeout, PayloadTransferSize ); gBS->RestoreTPL (OldTpl); return Status; } /** Send a security protocol command to a device. The SendData function sends a security protocol command containing the payload PayloadBuffer to the given MediaId. The security protocol command sent is defined by SecurityProtocolId and contains the security protocol specific data SecurityProtocolSpecificData. If the underlying protocol command requires a specific padding for the command payload, the SendData function shall add padding bytes to the command payload to satisfy the padding requirements. For devices supporting the SCSI command set, the security protocol command is sent using the SECURITY PROTOCOL OUT command defined in SPC-4. For devices supporting the ATA command set, the security protocol command is sent using one of the TRUSTED SEND commands defined in ATA8-ACS if PayloadBufferSize is non-zero. If the PayloadBufferSize is zero, the security protocol command is sent using the Trusted Non-Data command defined in ATA8-ACS. If PayloadBuffer is NULL and PayloadBufferSize is non-zero, the function shall return EFI_INVALID_PARAMETER. If the given MediaId does not support security protocol commands, the function shall return EFI_UNSUPPORTED. If there is no media in the device, the function returns EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the device, the function returns EFI_MEDIA_CHANGED. If the security protocol fails to complete within the Timeout period, the function shall return EFI_TIMEOUT. If the security protocol command completes without an error, the function shall return EFI_SUCCESS. If the security protocol command completes with an error, the function shall return EFI_DEVICE_ERROR. @param This Indicates a pointer to the calling context. @param MediaId ID of the medium to receive data from. @param Timeout The timeout, in 100ns units, to use for the execution of the security protocol command. A Timeout value of 0 means that this function will wait indefinitely for the security protocol command to execute. If Timeout is greater than zero, then this function will return EFI_TIMEOUT if the time required to execute the receive data command is greater than Timeout. @param SecurityProtocolId The value of the "Security Protocol" parameter of the security protocol command to be sent. @param SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter of the security protocol command to be sent. @param PayloadBufferSize Size in bytes of the payload data buffer. @param PayloadBuffer A pointer to a destination buffer to store the security protocol command specific payload data for the security protocol command. @retval EFI_SUCCESS The security protocol command completed successfully. @retval EFI_UNSUPPORTED The given MediaId does not support security protocol commands. @retval EFI_DEVICE_ERROR The security protocol command completed with an error. @retval EFI_NO_MEDIA There is no media in the device. @retval EFI_MEDIA_CHANGED The MediaId is not for the current media. @retval EFI_INVALID_PARAMETER The PayloadBuffer is NULL and PayloadBufferSize is non-zero. @retval EFI_TIMEOUT A timeout occurred while waiting for the security protocol command to execute. **/ EFI_STATUS EFIAPI AtaStorageSecuritySendData ( IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *This, IN UINT32 MediaId, IN UINT64 Timeout, IN UINT8 SecurityProtocolId, IN UINT16 SecurityProtocolSpecificData, IN UINTN PayloadBufferSize, IN VOID *PayloadBuffer ) { EFI_STATUS Status; ATA_DEVICE *Private; EFI_TPL OldTpl; DEBUG ((EFI_D_INFO, "EFI Storage Security Protocol - Send")); if ((PayloadBuffer == NULL) && (PayloadBufferSize != 0)) { return EFI_INVALID_PARAMETER; } Status = EFI_SUCCESS; Private = ATA_DEVICE_FROM_STORAGE_SECURITY (This); if (MediaId != Private->BlockIo.Media->MediaId) { return EFI_MEDIA_CHANGED; } OldTpl = gBS->RaiseTPL (TPL_CALLBACK); Status = TrustTransferAtaDevice ( Private, PayloadBuffer, SecurityProtocolId, SecurityProtocolSpecificData, PayloadBufferSize, TRUE, Timeout, NULL ); gBS->RestoreTPL (OldTpl); return Status; } /** The user Entry Point for module AtaBus. 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 InitializeAtaBus( IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable ) { EFI_STATUS Status; UINTN DataSize; // // Install driver model protocol(s). // Status = EfiLibInstallDriverBindingComponentName2 ( ImageHandle, SystemTable, &gAtaBusDriverBinding, ImageHandle, &gAtaBusComponentName, &gAtaBusComponentName2 ); ASSERT_EFI_ERROR (Status); // // Get the MorControl bit. // DataSize = sizeof (mMorControl); Status = gRT->GetVariable ( MEMORY_OVERWRITE_REQUEST_VARIABLE_NAME, &gEfiMemoryOverwriteControlDataGuid, NULL, &DataSize, &mMorControl ); if (EFI_ERROR (Status)) { DEBUG ((EFI_D_INFO, "AtaBus:gEfiMemoryOverwriteControlDataGuid doesn't exist!!***\n")); mMorControl = 0; Status = EFI_SUCCESS; } else { DEBUG ((EFI_D_INFO, "AtaBus:Get the gEfiMemoryOverwriteControlDataGuid = %x!!***\n", mMorControl)); } return Status; } /** Send TPer Reset command to reset eDrive to lock all protected bands. Typically, there are 2 mechanism for resetting eDrive. They are: 1. TPer Reset through IEEE 1667 protocol. 2. TPer Reset through native TCG protocol. This routine will detect what protocol the attached eDrive comform to, TCG or IEEE 1667 protocol. Then send out TPer Reset command separately. @param[in] AtaDevice ATA_DEVICE pointer. **/ VOID InitiateTPerReset ( IN ATA_DEVICE *AtaDevice ) { EFI_STATUS Status; UINT8 *Buffer; UINTN XferSize; UINTN Len; UINTN Index; BOOLEAN TcgFlag; BOOLEAN IeeeFlag; EFI_BLOCK_IO_PROTOCOL *BlockIo; EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *Ssp; SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA *Data; Buffer = NULL; TcgFlag = FALSE; IeeeFlag = FALSE; Ssp = &AtaDevice->StorageSecurity; BlockIo = &AtaDevice->BlockIo; // // ATA8-ACS 7.57.6.1 indicates the Transfer Length field requirements a multiple of 512. // If the length of the TRUSTED RECEIVE parameter data is greater than the Transfer Length, // then the device shall return the TRUSTED RECEIVE parameter data truncated to the requested Transfer Length. // Len = ROUNDUP512(sizeof(SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA)); Buffer = AllocateZeroPool(Len); if (Buffer == NULL) { return; } // // When the Security Protocol field is set to 00h, and SP Specific is set to 0000h in a TRUSTED RECEIVE // command, the device basic information data shall be returned. // Status = Ssp->ReceiveData ( Ssp, BlockIo->Media->MediaId, 100000000, // Timeout 10-sec 0, // SecurityProtocol 0, // SecurityProtocolSpecifcData Len, // PayloadBufferSize, Buffer, // PayloadBuffer &XferSize ); if (EFI_ERROR (Status)) { goto Exit; } // // In returned data, the ListLength field indicates the total length, in bytes, // of the supported security protocol list. // Data = (SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA*)Buffer; Len = ROUNDUP512(sizeof (SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA) + (Data->SupportedSecurityListLength[0] << 8) + (Data->SupportedSecurityListLength[1]) ); // // Free original buffer and allocate new buffer. // FreePool(Buffer); Buffer = AllocateZeroPool(Len); if (Buffer == NULL) { return; } // // Read full supported security protocol list from device. // Status = Ssp->ReceiveData ( Ssp, BlockIo->Media->MediaId, 100000000, // Timeout 10-sec 0, // SecurityProtocol 0, // SecurityProtocolSpecifcData Len, // PayloadBufferSize, Buffer, // PayloadBuffer &XferSize ); if (EFI_ERROR (Status)) { goto Exit; } Data = (SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA*)Buffer; Len = (Data->SupportedSecurityListLength[0] << 8) + Data->SupportedSecurityListLength[1]; // // Iterate full supported security protocol list to check if TCG or IEEE 1667 protocol // is supported. // for (Index = 0; Index < Len; Index++) { if (Data->SupportedSecurityProtocol[Index] == SECURITY_PROTOCOL_TCG) { // // Found a TCG device. // TcgFlag = TRUE; DEBUG ((EFI_D_INFO, "This device is a TCG protocol device\n")); break; } if (Data->SupportedSecurityProtocol[Index] == SECURITY_PROTOCOL_IEEE1667) { // // Found a IEEE 1667 device. // IeeeFlag = TRUE; DEBUG ((EFI_D_INFO, "This device is a IEEE 1667 protocol device\n")); break; } } if (!TcgFlag && !IeeeFlag) { DEBUG ((EFI_D_INFO, "Neither a TCG nor IEEE 1667 protocol device is found\n")); goto Exit; } if (TcgFlag) { // // As long as TCG protocol is supported, send out a TPer Reset // TCG command to the device via the TrustedSend command with a non-zero Transfer Length. // Status = Ssp->SendData ( Ssp, BlockIo->Media->MediaId, 100000000, // Timeout 10-sec SECURITY_PROTOCOL_TCG, // SecurityProtocol 0x0400, // SecurityProtocolSpecifcData 512, // PayloadBufferSize, Buffer // PayloadBuffer ); if (!EFI_ERROR (Status)) { DEBUG ((EFI_D_INFO, "Send TPer Reset Command Successfully !\n")); } else { DEBUG ((EFI_D_INFO, "Send TPer Reset Command Fail !\n")); } } if (IeeeFlag) { // // TBD : Perform a TPer Reset via IEEE 1667 Protocol // DEBUG ((EFI_D_INFO, "IEEE 1667 Protocol didn't support yet!\n")); } Exit: if (Buffer != NULL) { FreePool(Buffer); } }