/** @file Header file for ATA/ATAPI PASS THRU driver. Copyright (c) 2010 - 2012, 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. **/ #ifndef __ATA_ATAPI_PASS_THRU_H__ #define __ATA_ATAPI_PASS_THRU_H__ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "IdeMode.h" #include "AhciMode.h" extern EFI_DRIVER_BINDING_PROTOCOL gAtaAtapiPassThruDriverBinding; extern EFI_COMPONENT_NAME_PROTOCOL gAtaAtapiPassThruComponentName; extern EFI_COMPONENT_NAME2_PROTOCOL gAtaAtapiPassThruComponentName2; #define ATA_ATAPI_PASS_THRU_SIGNATURE SIGNATURE_32 ('a', 'a', 'p', 't') #define ATA_ATAPI_DEVICE_SIGNATURE SIGNATURE_32 ('a', 'd', 'e', 'v') #define ATA_NONBLOCKING_TASK_SIGNATURE SIGNATURE_32 ('a', 't', 's', 'k') typedef struct _ATA_NONBLOCK_TASK ATA_NONBLOCK_TASK; typedef enum { EfiAtaIdeMode, EfiAtaAhciMode, EfiAtaRaidMode, EfiAtaUnknownMode } EFI_ATA_HC_WORK_MODE; typedef enum { EfiIdeCdrom, /* ATAPI CDROM */ EfiIdeHarddisk, /* Hard Disk */ EfiPortMultiplier, /* Port Multiplier */ EfiIdeUnknown } EFI_ATA_DEVICE_TYPE; // // Ahci mode device info // typedef struct { UINT32 Signature; LIST_ENTRY Link; UINT16 Port; UINT16 PortMultiplier; EFI_ATA_DEVICE_TYPE Type; EFI_IDENTIFY_DATA *IdentifyData; } EFI_ATA_DEVICE_INFO; typedef struct { UINT32 Signature; EFI_HANDLE ControllerHandle; EFI_PCI_IO_PROTOCOL *PciIo; EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeControllerInit; EFI_ATA_PASS_THRU_MODE AtaPassThruMode; EFI_ATA_PASS_THRU_PROTOCOL AtaPassThru; EFI_EXT_SCSI_PASS_THRU_MODE ExtScsiPassThruMode; EFI_EXT_SCSI_PASS_THRU_PROTOCOL ExtScsiPassThru; EFI_ATA_HC_WORK_MODE Mode; EFI_IDE_REGISTERS IdeRegisters[EfiIdeMaxChannel]; EFI_AHCI_REGISTERS AhciRegisters; // // The attached device list // LIST_ENTRY DeviceList; UINT64 OriginalPciAttributes; // // For AtaPassThru protocol, using the following bytes to record the previous call in // GetNextPort()/GetNextDevice(). // UINT16 PreviousPort; UINT16 PreviousPortMultiplier; // // For ExtScsiPassThru protocol, using the following bytes to record the previous call in // GetNextTarget()/GetNextTargetLun(). // UINT16 PreviousTargetId; UINT64 PreviousLun; // // For Non-blocking. // EFI_EVENT TimerEvent; LIST_ENTRY NonBlockingTaskList; } ATA_ATAPI_PASS_THRU_INSTANCE; // // Task for Non-blocking mode. // struct _ATA_NONBLOCK_TASK { UINT32 Signature; LIST_ENTRY Link; UINT16 Port; UINT16 PortMultiplier; EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet; BOOLEAN IsStart; EFI_EVENT Event; UINT64 RetryTimes; VOID *Map; // Pointer to map. VOID *TableMap;// Pointer to PRD table map. EFI_ATA_DMA_PRD *MapBaseAddress; // Pointer to range Base address for Map. UINTN PageCount; // The page numbers used by PCIO freebuffer. }; // // Timeout value which uses 100ns as a unit. // It means 3 second span. // #define ATA_ATAPI_TIMEOUT EFI_TIMER_PERIOD_SECONDS(3) #define IS_ALIGNED(addr, size) (((UINTN) (addr) & (size - 1)) == 0) #define ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS(a) \ CR (a, \ ATA_ATAPI_PASS_THRU_INSTANCE, \ AtaPassThru, \ ATA_ATAPI_PASS_THRU_SIGNATURE \ ) #define EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS(a) \ CR (a, \ ATA_ATAPI_PASS_THRU_INSTANCE, \ ExtScsiPassThru, \ ATA_ATAPI_PASS_THRU_SIGNATURE \ ) #define ATA_ATAPI_DEVICE_INFO_FROM_THIS(a) \ CR (a, \ EFI_ATA_DEVICE_INFO, \ Link, \ ATA_ATAPI_DEVICE_SIGNATURE \ ); #define ATA_NON_BLOCK_TASK_FROM_ENTRY(a) \ CR (a, \ ATA_NONBLOCK_TASK, \ Link, \ ATA_NONBLOCKING_TASK_SIGNATURE \ ); /** Retrieves a Unicode string that is the user readable name of the driver. This function retrieves the user readable name of a driver in the form of a Unicode string. If the driver specified by This has a user readable name in the language specified by Language, then a pointer to the driver name is returned in DriverName, and EFI_SUCCESS is returned. If the driver specified by This does not support the language specified by Language, then EFI_UNSUPPORTED is returned. @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or EFI_COMPONENT_NAME_PROTOCOL instance. @param Language[in] A pointer to a Null-terminated ASCII string array indicating the language. This is the language of the driver name that the caller is requesting, and it must match one of the languages specified in SupportedLanguages. The number of languages supported by a driver is up to the driver writer. Language is specified in RFC 4646 or ISO 639-2 language code format. @param DriverName[out] A pointer to the Unicode string to return. This Unicode string is the name of the driver specified by This in the language specified by Language. @retval EFI_SUCCESS The Unicode string for the Driver specified by This and the language specified by Language was returned in DriverName. @retval EFI_INVALID_PARAMETER Language is NULL. @retval EFI_INVALID_PARAMETER DriverName is NULL. @retval EFI_UNSUPPORTED The driver specified by This does not support the language specified by Language. **/ EFI_STATUS EFIAPI AtaAtapiPassThruComponentNameGetDriverName ( IN EFI_COMPONENT_NAME_PROTOCOL *This, IN CHAR8 *Language, OUT CHAR16 **DriverName ); /** Retrieves a Unicode string that is the user readable name of the controller that is being managed by a driver. This function retrieves the user readable name of the controller specified by ControllerHandle and ChildHandle in the form of a Unicode string. If the driver specified by This has a user readable name in the language specified by Language, then a pointer to the controller name is returned in ControllerName, and EFI_SUCCESS is returned. If the driver specified by This is not currently managing the controller specified by ControllerHandle and ChildHandle, then EFI_UNSUPPORTED is returned. If the driver specified by This does not support the language specified by Language, then EFI_UNSUPPORTED is returned. @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or EFI_COMPONENT_NAME_PROTOCOL instance. @param ControllerHandle[in] The handle of a controller that the driver specified by This is managing. This handle specifies the controller whose name is to be returned. @param ChildHandle[in] The handle of the child controller to retrieve the name of. This is an optional parameter that may be NULL. It will be NULL for device drivers. It will also be NULL for a bus drivers that wish to retrieve the name of the bus controller. It will not be NULL for a bus driver that wishes to retrieve the name of a child controller. @param Language[in] A pointer to a Null-terminated ASCII string array indicating the language. This is the language of the driver name that the caller is requesting, and it must match one of the languages specified in SupportedLanguages. The number of languages supported by a driver is up to the driver writer. Language is specified in RFC 4646 or ISO 639-2 language code format. @param ControllerName[out] A pointer to the Unicode string to return. This Unicode string is the name of the controller specified by ControllerHandle and ChildHandle in the language specified by Language from the point of view of the driver specified by This. @retval EFI_SUCCESS The Unicode string for the user readable name in the language specified by Language for the driver specified by This was returned in DriverName. @retval EFI_INVALID_PARAMETER ControllerHandle is NULL. @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE. @retval EFI_INVALID_PARAMETER Language is NULL. @retval EFI_INVALID_PARAMETER ControllerName is NULL. @retval EFI_UNSUPPORTED The driver specified by This is not currently managing the controller specified by ControllerHandle and ChildHandle. @retval EFI_UNSUPPORTED The driver specified by This does not support the language specified by Language. **/ EFI_STATUS EFIAPI AtaAtapiPassThruComponentNameGetControllerName ( IN EFI_COMPONENT_NAME_PROTOCOL *This, IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE ChildHandle OPTIONAL, IN CHAR8 *Language, OUT CHAR16 **ControllerName ); /** 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(). Because 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 AtaAtapiPassThruSupported ( IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath ); /** 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 AtaAtapiPassThruStart ( IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath ); /** 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 AtaAtapiPassThruStop ( IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Controller, IN UINTN NumberOfChildren, IN EFI_HANDLE *ChildHandleBuffer ); /** Traverse the attached ATA devices list to find out the device to access. @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance. @param[in] Port The port number of the ATA device to send the command. @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command. If there is no port multiplier, then specify 0. @param[in] DeviceType The device type of the ATA device. @retval The pointer to the data structure of the device info to access. **/ LIST_ENTRY * EFIAPI SearchDeviceInfoList ( IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance, IN UINT16 Port, IN UINT16 PortMultiplier, IN EFI_ATA_DEVICE_TYPE DeviceType ); /** Allocate device info data structure to contain device info. And insert the data structure to the tail of device list for tracing. @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance. @param[in] Port The port number of the ATA device to send the command. @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command. If there is no port multiplier, then specify 0. @param[in] DeviceType The device type of the ATA device. @param[in] IdentifyData The data buffer to store the output of the IDENTIFY cmd. @retval EFI_SUCCESS Successfully insert the ata device to the tail of device list. @retval EFI_OUT_OF_RESOURCES Can not allocate enough resource for use. **/ EFI_STATUS EFIAPI CreateNewDeviceInfo ( IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance, IN UINT16 Port, IN UINT16 PortMultiplier, IN EFI_ATA_DEVICE_TYPE DeviceType, IN EFI_IDENTIFY_DATA *IdentifyData ); /** Destroy all attached ATA devices info. @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance. **/ VOID EFIAPI DestroyDeviceInfoList ( IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance ); /** Destroy all pending non blocking tasks. @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance. @param[in] IsSigEvent Indicate whether signal the task event when remove the task. **/ VOID EFIAPI DestroyAsynTaskList ( IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance, IN BOOLEAN IsSigEvent ); /** Enumerate all attached ATA devices at IDE mode or AHCI mode separately. The function is designed to enumerate all attached ATA devices. @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance. @retval EFI_SUCCESS Successfully enumerate attached ATA devices. @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error. **/ EFI_STATUS EFIAPI EnumerateAttachedDevice ( IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance ); /** Call back funtion when the timer event is signaled. @param[in] Event The Event this notify function registered to. @param[in] Context Pointer to the context data registered to the Event. **/ VOID EFIAPI AsyncNonBlockingTransferRoutine ( EFI_EVENT Event, VOID* Context ); /** Sends an ATA command to an ATA device that is attached to the ATA controller. This function supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required, and the non-blocking I/O functionality is optional. @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance. @param[in] Port The port number of the ATA device to send the command. @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command. If there is no port multiplier, then specify 0. @param[in, out] Packet A pointer to the ATA command to send to the ATA device specified by Port and PortMultiplierPort. @param[in] Event If non-blocking I/O is not supported then Event is ignored, and blocking I/O is performed. If Event is NULL, then blocking I/O is performed. If Event is not NULL and non blocking I/O is supported, then non-blocking I/O is performed, and Event will be signaled when the ATA command completes. @retval EFI_SUCCESS The ATA command was sent by the host. For bi-directional commands, InTransferLength bytes were transferred from InDataBuffer. For write and bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer. @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number of bytes that could be transferred is returned in InTransferLength. For write and bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer. @retval EFI_NOT_READY The ATA command could not be sent because there are too many ATA commands already queued. The caller may retry again later. @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the ATA command. @retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents of Acb are invalid. The ATA command was not sent, so no additional status information is available. **/ EFI_STATUS EFIAPI AtaPassThruPassThru ( IN EFI_ATA_PASS_THRU_PROTOCOL *This, IN UINT16 Port, IN UINT16 PortMultiplierPort, IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet, IN EFI_EVENT Event OPTIONAL ); /** Used to retrieve the list of legal port numbers for ATA devices on an ATA controller. These can either be the list of ports where ATA devices are actually present or the list of legal port numbers for the ATA controller. Regardless, the caller of this function must probe the port number returned to see if an ATA device is actually present at that location on the ATA controller. The GetNextPort() function retrieves the port number on an ATA controller. If on input Port is 0xFFFF, then the port number of the first port on the ATA controller is returned in Port and EFI_SUCCESS is returned. If Port is a port number that was returned on a previous call to GetNextPort(), then the port number of the next port on the ATA controller is returned in Port, and EFI_SUCCESS is returned. If Port is not 0xFFFF and Port was not returned on a previous call to GetNextPort(), then EFI_INVALID_PARAMETER is returned. If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND is returned. @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance. @param[in, out] Port On input, a pointer to the port number on the ATA controller. On output, a pointer to the next port number on the ATA controller. An input value of 0xFFFF retrieves the first port number on the ATA controller. @retval EFI_SUCCESS The next port number on the ATA controller was returned in Port. @retval EFI_NOT_FOUND There are no more ports on this ATA controller. @retval EFI_INVALID_PARAMETER Port is not 0xFFFF and Port was not returned on a previous call to GetNextPort(). **/ EFI_STATUS EFIAPI AtaPassThruGetNextPort ( IN EFI_ATA_PASS_THRU_PROTOCOL *This, IN OUT UINT16 *Port ); /** Used to retrieve the list of legal port multiplier port numbers for ATA devices on a port of an ATA controller. These can either be the list of port multiplier ports where ATA devices are actually present on port or the list of legal port multiplier ports on that port. Regardless, the caller of this function must probe the port number and port multiplier port number returned to see if an ATA device is actually present. The GetNextDevice() function retrieves the port multiplier port number of an ATA device present on a port of an ATA controller. If PortMultiplierPort points to a port multiplier port number value that was returned on a previous call to GetNextDevice(), then the port multiplier port number of the next ATA device on the port of the ATA controller is returned in PortMultiplierPort, and EFI_SUCCESS is returned. If PortMultiplierPort points to 0xFFFF, then the port multiplier port number of the first ATA device on port of the ATA controller is returned in PortMultiplierPort and EFI_SUCCESS is returned. If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER is returned. If PortMultiplierPort is the port multiplier port number of the last ATA device on the port of the ATA controller, then EFI_NOT_FOUND is returned. @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance. @param[in] Port The port number present on the ATA controller. @param[in, out] PortMultiplierPort On input, a pointer to the port multiplier port number of an ATA device present on the ATA controller. If on input a PortMultiplierPort of 0xFFFF is specified, then the port multiplier port number of the first ATA device is returned. On output, a pointer to the port multiplier port number of the next ATA device present on an ATA controller. @retval EFI_SUCCESS The port multiplier port number of the next ATA device on the port of the ATA controller was returned in PortMultiplierPort. @retval EFI_NOT_FOUND There are no more ATA devices on this port of the ATA controller. @retval EFI_INVALID_PARAMETER PortMultiplierPort is not 0xFFFF, and PortMultiplierPort was not returned on a previous call to GetNextDevice(). **/ EFI_STATUS EFIAPI AtaPassThruGetNextDevice ( IN EFI_ATA_PASS_THRU_PROTOCOL *This, IN UINT16 Port, IN OUT UINT16 *PortMultiplierPort ); /** Used to allocate and build a device path node for an ATA device on an ATA controller. The BuildDevicePath() function allocates and builds a single device node for the ATA device specified by Port and PortMultiplierPort. If the ATA device specified by Port and PortMultiplierPort is not present on the ATA controller, then EFI_NOT_FOUND is returned. If DevicePath is NULL, then EFI_INVALID_PARAMETER is returned. If there are not enough resources to allocate the device path node, then EFI_OUT_OF_RESOURCES is returned. Otherwise, DevicePath is allocated with the boot service AllocatePool(), the contents of DevicePath are initialized to describe the ATA device specified by Port and PortMultiplierPort, and EFI_SUCCESS is returned. @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance. @param[in] Port Port specifies the port number of the ATA device for which a device path node is to be allocated and built. @param[in] PortMultiplierPort The port multiplier port number of the ATA device for which a device path node is to be allocated and built. If there is no port multiplier, then specify 0. @param[in, out] DevicePath A pointer to a single device path node that describes the ATA device specified by Port and PortMultiplierPort. This function is responsible for allocating the buffer DevicePath with the boot service AllocatePool(). It is the caller's responsibility to free DevicePath when the caller is finished with DevicePath. @retval EFI_SUCCESS The device path node that describes the ATA device specified by Port and PortMultiplierPort was allocated and returned in DevicePath. @retval EFI_NOT_FOUND The ATA device specified by Port and PortMultiplierPort does not exist on the ATA controller. @retval EFI_INVALID_PARAMETER DevicePath is NULL. @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath. **/ EFI_STATUS EFIAPI AtaPassThruBuildDevicePath ( IN EFI_ATA_PASS_THRU_PROTOCOL *This, IN UINT16 Port, IN UINT16 PortMultiplierPort, IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath ); /** Used to translate a device path node to a port number and port multiplier port number. The GetDevice() function determines the port and port multiplier port number associated with the ATA device described by DevicePath. If DevicePath is a device path node type that the ATA Pass Thru driver supports, then the ATA Pass Thru driver will attempt to translate the contents DevicePath into a port number and port multiplier port number. If this translation is successful, then that port number and port multiplier port number are returned in Port and PortMultiplierPort, and EFI_SUCCESS is returned. If DevicePath, Port, or PortMultiplierPort are NULL, then EFI_INVALID_PARAMETER is returned. If DevicePath is not a device path node type that the ATA Pass Thru driver supports, then EFI_UNSUPPORTED is returned. If DevicePath is a device path node type that the ATA Pass Thru driver supports, but there is not a valid translation from DevicePath to a port number and port multiplier port number, then EFI_NOT_FOUND is returned. @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance. @param[in] DevicePath A pointer to the device path node that describes an ATA device on the ATA controller. @param[out] Port On return, points to the port number of an ATA device on the ATA controller. @param[out] PortMultiplierPort On return, points to the port multiplier port number of an ATA device on the ATA controller. @retval EFI_SUCCESS DevicePath was successfully translated to a port number and port multiplier port number, and they were returned in Port and PortMultiplierPort. @retval EFI_INVALID_PARAMETER DevicePath is NULL. @retval EFI_INVALID_PARAMETER Port is NULL. @retval EFI_INVALID_PARAMETER PortMultiplierPort is NULL. @retval EFI_UNSUPPORTED This driver does not support the device path node type in DevicePath. @retval EFI_NOT_FOUND A valid translation from DevicePath to a port number and port multiplier port number does not exist. **/ EFI_STATUS EFIAPI AtaPassThruGetDevice ( IN EFI_ATA_PASS_THRU_PROTOCOL *This, IN EFI_DEVICE_PATH_PROTOCOL *DevicePath, OUT UINT16 *Port, OUT UINT16 *PortMultiplierPort ); /** Resets a specific port on the ATA controller. This operation also resets all the ATA devices connected to the port. The ResetChannel() function resets an a specific port on an ATA controller. This operation resets all the ATA devices connected to that port. If this ATA controller does not support a reset port operation, then EFI_UNSUPPORTED is returned. If a device error occurs while executing that port reset operation, then EFI_DEVICE_ERROR is returned. If a timeout occurs during the execution of the port reset operation, then EFI_TIMEOUT is returned. If the port reset operation is completed, then EFI_SUCCESS is returned. @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance. @param[in] Port The port number on the ATA controller. @retval EFI_SUCCESS The ATA controller port was reset. @retval EFI_UNSUPPORTED The ATA controller does not support a port reset operation. @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA port. @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA port. **/ EFI_STATUS EFIAPI AtaPassThruResetPort ( IN EFI_ATA_PASS_THRU_PROTOCOL *This, IN UINT16 Port ); /** Resets an ATA device that is connected to an ATA controller. The ResetDevice() function resets the ATA device specified by Port and PortMultiplierPort. If this ATA controller does not support a device reset operation, then EFI_UNSUPPORTED is returned. If Port or PortMultiplierPort are not in a valid range for this ATA controller, then EFI_INVALID_PARAMETER is returned. If a device error occurs while executing that device reset operation, then EFI_DEVICE_ERROR is returned. If a timeout occurs during the execution of the device reset operation, then EFI_TIMEOUT is returned. If the device reset operation is completed, then EFI_SUCCESS is returned. @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance. @param[in] Port Port represents the port number of the ATA device to be reset. @param[in] PortMultiplierPort The port multiplier port number of the ATA device to reset. If there is no port multiplier, then specify 0. @retval EFI_SUCCESS The ATA device specified by Port and PortMultiplierPort was reset. @retval EFI_UNSUPPORTED The ATA controller does not support a device reset operation. @retval EFI_INVALID_PARAMETER Port or PortMultiplierPort are invalid. @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA device specified by Port and PortMultiplierPort. @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA device specified by Port and PortMultiplierPort. **/ EFI_STATUS EFIAPI AtaPassThruResetDevice ( IN EFI_ATA_PASS_THRU_PROTOCOL *This, IN UINT16 Port, IN UINT16 PortMultiplierPort ); /** Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel. This function supports both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the nonblocking I/O functionality is optional. @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. @param Target The Target is an array of size TARGET_MAX_BYTES and it represents the id of the SCSI device to send the SCSI Request Packet. Each transport driver may choose to utilize a subset of this size to suit the needs of transport target representation. For example, a Fibre Channel driver may use only 8 bytes (WWN) to represent an FC target. @param Lun The LUN of the SCSI device to send the SCSI Request Packet. @param Packet A pointer to the SCSI Request Packet to send to the SCSI device specified by Target and Lun. @param Event If nonblocking I/O is not supported then Event is ignored, and blocking I/O is performed. If Event is NULL, then blocking I/O is performed. If Event is not NULL and non blocking I/O is supported, then nonblocking I/O is performed, and Event will be signaled when the SCSI Request Packet completes. @retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional commands, InTransferLength bytes were transferred from InDataBuffer. For write and bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer. @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed. The number of bytes that could be transferred is returned in InTransferLength. For write and bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer. @retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many SCSI Request Packets already queued. The caller may retry again later. @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request Packet. @retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket are invalid. @retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by the host adapter. This includes the case of Bi-directional SCSI commands not supported by the implementation. The SCSI Request Packet was not sent, so no additional status information is available. @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute. **/ EFI_STATUS EFIAPI ExtScsiPassThruPassThru ( IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, IN UINT8 *Target, IN UINT64 Lun, IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet, IN EFI_EVENT Event OPTIONAL ); /** Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on a SCSI channel. These can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target Ids and LUNs for the SCSI channel. Regardless, the caller of this function must probe the Target ID and LUN returned to see if a SCSI device is actually present at that location on the SCSI channel. @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. @param Target On input, a pointer to the Target ID (an array of size TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel. On output, a pointer to the Target ID (an array of TARGET_MAX_BYTES) of the next SCSI device present on a SCSI channel. An input value of 0xF(all bytes in the array are 0xF) in the Target array retrieves the Target ID of the first SCSI device present on a SCSI channel. @param Lun On input, a pointer to the LUN of a SCSI device present on the SCSI channel. On output, a pointer to the LUN of the next SCSI device present on a SCSI channel. @retval EFI_SUCCESS The Target ID and LUN of the next SCSI device on the SCSI channel was returned in Target and Lun. @retval EFI_INVALID_PARAMETER Target array is not all 0xF, and Target and Lun were not returned on a previous call to GetNextTargetLun(). @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel. **/ EFI_STATUS EFIAPI ExtScsiPassThruGetNextTargetLun ( IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, IN OUT UINT8 **Target, IN OUT UINT64 *Lun ); /** Used to allocate and build a device path node for a SCSI device on a SCSI channel. @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. @param Target The Target is an array of size TARGET_MAX_BYTES and it specifies the Target ID of the SCSI device for which a device path node is to be allocated and built. Transport drivers may chose to utilize a subset of this size to suit the representation of targets. For example, a Fibre Channel driver may use only 8 bytes (WWN) in the array to represent a FC target. @param Lun The LUN of the SCSI device for which a device path node is to be allocated and built. @param DevicePath A pointer to a single device path node that describes the SCSI device specified by Target and Lun. This function is responsible for allocating the buffer DevicePath with the boot service AllocatePool(). It is the caller's responsibility to free DevicePath when the caller is finished with DevicePath. @retval EFI_SUCCESS The device path node that describes the SCSI device specified by Target and Lun was allocated and returned in DevicePath. @retval EFI_INVALID_PARAMETER DevicePath is NULL. @retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does not exist on the SCSI channel. @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath. **/ EFI_STATUS EFIAPI ExtScsiPassThruBuildDevicePath ( IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, IN UINT8 *Target, IN UINT64 Lun, IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath ); /** Used to translate a device path node to a Target ID and LUN. @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. @param DevicePath A pointer to a single device path node that describes the SCSI device on the SCSI channel. @param Target A pointer to the Target Array which represents the ID of a SCSI device on the SCSI channel. @param Lun A pointer to the LUN of a SCSI device on the SCSI channel. @retval EFI_SUCCESS DevicePath was successfully translated to a Target ID and LUN, and they were returned in Target and Lun. @retval EFI_INVALID_PARAMETER DevicePath or Target or Lun is NULL. @retval EFI_NOT_FOUND A valid translation from DevicePath to a Target ID and LUN does not exist. @retval EFI_UNSUPPORTED This driver does not support the device path node type in DevicePath. **/ EFI_STATUS EFIAPI ExtScsiPassThruGetTargetLun ( IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, IN EFI_DEVICE_PATH_PROTOCOL *DevicePath, OUT UINT8 **Target, OUT UINT64 *Lun ); /** Resets a SCSI channel. This operation resets all the SCSI devices connected to the SCSI channel. @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. @retval EFI_SUCCESS The SCSI channel was reset. @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI channel. @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI channel. @retval EFI_UNSUPPORTED The SCSI channel does not support a channel reset operation. **/ EFI_STATUS EFIAPI ExtScsiPassThruResetChannel ( IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This ); /** Resets a SCSI logical unit that is connected to a SCSI channel. @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. @param Target The Target is an array of size TARGET_MAX_BYTE and it represents the target port ID of the SCSI device containing the SCSI logical unit to reset. Transport drivers may chose to utilize a subset of this array to suit the representation of their targets. @param Lun The LUN of the SCSI device to reset. @retval EFI_SUCCESS The SCSI device specified by Target and Lun was reset. @retval EFI_INVALID_PARAMETER Target or Lun is NULL. @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI device specified by Target and Lun. @retval EFI_UNSUPPORTED The SCSI channel does not support a target reset operation. @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI device specified by Target and Lun. **/ EFI_STATUS EFIAPI ExtScsiPassThruResetTargetLun ( IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, IN UINT8 *Target, IN UINT64 Lun ); /** Used to retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. These can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target IDs for the SCSI channel. Regardless, the caller of this function must probe the Target ID returned to see if a SCSI device is actually present at that location on the SCSI channel. @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. @param Target (TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel. On output, a pointer to the Target ID (an array of TARGET_MAX_BYTES) of the next SCSI device present on a SCSI channel. An input value of 0xF(all bytes in the array are 0xF) in the Target array retrieves the Target ID of the first SCSI device present on a SCSI channel. @retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI channel was returned in Target. @retval EFI_INVALID_PARAMETER Target or Lun is NULL. @retval EFI_TIMEOUT Target array is not all 0xF, and Target was not returned on a previous call to GetNextTarget(). @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel. **/ EFI_STATUS EFIAPI ExtScsiPassThruGetNextTarget ( IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, IN OUT UINT8 **Target ); /** Initialize ATA host controller at IDE mode. The function is designed to initialize ATA host controller. @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance. **/ EFI_STATUS EFIAPI IdeModeInitialization ( IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance ); /** Initialize ATA host controller at AHCI mode. The function is designed to initialize ATA host controller. @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance. **/ EFI_STATUS EFIAPI AhciModeInitialization ( IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance ); /** Start a non data transfer on specific port. @param[in] PciIo The PCI IO protocol instance. @param[in] AhciRegisters The pointer to the EFI_AHCI_REGISTERS. @param[in] Port The number of port. @param[in] PortMultiplier The timeout value of stop. @param[in] AtapiCommand The atapi command will be used for the transfer. @param[in] AtapiCommandLength The length of the atapi command. @param[in] AtaCommandBlock The EFI_ATA_COMMAND_BLOCK data. @param[in, out] AtaStatusBlock The EFI_ATA_STATUS_BLOCK data. @param[in] Timeout The timeout value of non data transfer, uses 100ns as a unit. @param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK used by non-blocking mode. @retval EFI_DEVICE_ERROR The non data transfer abort with error occurs. @retval EFI_TIMEOUT The operation is time out. @retval EFI_UNSUPPORTED The device is not ready for transfer. @retval EFI_SUCCESS The non data transfer executes successfully. **/ EFI_STATUS EFIAPI AhciNonDataTransfer ( IN EFI_PCI_IO_PROTOCOL *PciIo, IN EFI_AHCI_REGISTERS *AhciRegisters, IN UINT8 Port, IN UINT8 PortMultiplier, IN EFI_AHCI_ATAPI_COMMAND *AtapiCommand OPTIONAL, IN UINT8 AtapiCommandLength, IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock, IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock, IN UINT64 Timeout, IN ATA_NONBLOCK_TASK *Task ); /** Start a DMA data transfer on specific port @param[in] Instance The ATA_ATAPI_PASS_THRU_INSTANCE protocol instance. @param[in] AhciRegisters The pointer to the EFI_AHCI_REGISTERS. @param[in] Port The number of port. @param[in] PortMultiplier The timeout value of stop. @param[in] AtapiCommand The atapi command will be used for the transfer. @param[in] AtapiCommandLength The length of the atapi command. @param[in] Read The transfer direction. @param[in] AtaCommandBlock The EFI_ATA_COMMAND_BLOCK data. @param[in, out] AtaStatusBlock The EFI_ATA_STATUS_BLOCK data. @param[in, out] MemoryAddr The pointer to the data buffer. @param[in] DataCount The data count to be transferred. @param[in] Timeout The timeout value of non data transfer, uses 100ns as a unit. @param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK used by non-blocking mode. @retval EFI_DEVICE_ERROR The DMA data transfer abort with error occurs. @retval EFI_TIMEOUT The operation is time out. @retval EFI_UNSUPPORTED The device is not ready for transfer. @retval EFI_SUCCESS The DMA data transfer executes successfully. **/ EFI_STATUS EFIAPI AhciDmaTransfer ( IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance, IN EFI_AHCI_REGISTERS *AhciRegisters, IN UINT8 Port, IN UINT8 PortMultiplier, IN EFI_AHCI_ATAPI_COMMAND *AtapiCommand OPTIONAL, IN UINT8 AtapiCommandLength, IN BOOLEAN Read, IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock, IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock, IN OUT VOID *MemoryAddr, IN UINT32 DataCount, IN UINT64 Timeout, IN ATA_NONBLOCK_TASK *Task ); /** Start a PIO data transfer on specific port. @param[in] PciIo The PCI IO protocol instance. @param[in] AhciRegisters The pointer to the EFI_AHCI_REGISTERS. @param[in] Port The number of port. @param[in] PortMultiplier The timeout value of stop. @param[in] AtapiCommand The atapi command will be used for the transfer. @param[in] AtapiCommandLength The length of the atapi command. @param[in] Read The transfer direction. @param[in] AtaCommandBlock The EFI_ATA_COMMAND_BLOCK data. @param[in, out] AtaStatusBlock The EFI_ATA_STATUS_BLOCK data. @param[in, out] MemoryAddr The pointer to the data buffer. @param[in] DataCount The data count to be transferred. @param[in] Timeout The timeout value of non data transfer, uses 100ns as a unit. @param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK used by non-blocking mode. @retval EFI_DEVICE_ERROR The PIO data transfer abort with error occurs. @retval EFI_TIMEOUT The operation is time out. @retval EFI_UNSUPPORTED The device is not ready for transfer. @retval EFI_SUCCESS The PIO data transfer executes successfully. **/ EFI_STATUS EFIAPI AhciPioTransfer ( IN EFI_PCI_IO_PROTOCOL *PciIo, IN EFI_AHCI_REGISTERS *AhciRegisters, IN UINT8 Port, IN UINT8 PortMultiplier, IN EFI_AHCI_ATAPI_COMMAND *AtapiCommand OPTIONAL, IN UINT8 AtapiCommandLength, IN BOOLEAN Read, IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock, IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock, IN OUT VOID *MemoryAddr, IN UINT32 DataCount, IN UINT64 Timeout, IN ATA_NONBLOCK_TASK *Task ); /** Send ATA command into device with NON_DATA protocol @param[in] PciIo A pointer to ATA_ATAPI_PASS_THRU_INSTANCE data structure. @param[in] IdeRegisters A pointer to EFI_IDE_REGISTERS data structure. @param[in] AtaCommandBlock A pointer to EFI_ATA_COMMAND_BLOCK data structure. @param[in, out] AtaStatusBlock A pointer to EFI_ATA_STATUS_BLOCK data structure. @param[in] Timeout The time to complete the command, uses 100ns as a unit. @param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK used by non-blocking mode. @retval EFI_SUCCESS Reading succeed @retval EFI_ABORTED Command failed @retval EFI_DEVICE_ERROR Device status error. **/ EFI_STATUS EFIAPI AtaNonDataCommandIn ( IN EFI_PCI_IO_PROTOCOL *PciIo, IN EFI_IDE_REGISTERS *IdeRegisters, IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock, IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock, IN UINT64 Timeout, IN ATA_NONBLOCK_TASK *Task ); /** Perform an ATA Udma operation (Read, ReadExt, Write, WriteExt). @param[in] Instance A pointer to ATA_ATAPI_PASS_THRU_INSTANCE data structure. @param[in] IdeRegisters A pointer to EFI_IDE_REGISTERS data structure. @param[in] Read Flag used to determine the data transfer direction. Read equals 1, means data transferred from device to host;Read equals 0, means data transferred from host to device. @param[in] DataBuffer A pointer to the source buffer for the data. @param[in] DataLength The length of the data. @param[in] AtaCommandBlock A pointer to EFI_ATA_COMMAND_BLOCK data structure. @param[in, out] AtaStatusBlock A pointer to EFI_ATA_STATUS_BLOCK data structure. @param[in] Timeout The time to complete the command, uses 100ns as a unit. @param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK used by non-blocking mode. @retval EFI_SUCCESS the operation is successful. @retval EFI_OUT_OF_RESOURCES Build PRD table failed @retval EFI_UNSUPPORTED Unknown channel or operations command @retval EFI_DEVICE_ERROR Ata command execute failed **/ EFI_STATUS EFIAPI AtaUdmaInOut ( IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance, IN EFI_IDE_REGISTERS *IdeRegisters, IN BOOLEAN Read, IN VOID *DataBuffer, IN UINT64 DataLength, IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock, IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock, IN UINT64 Timeout, IN ATA_NONBLOCK_TASK *Task ); /** This function is used to send out ATA commands conforms to the PIO Data In Protocol. @param[in] PciIo A pointer to ATA_ATAPI_PASS_THRU_INSTANCE data structure. @param[in] IdeRegisters A pointer to EFI_IDE_REGISTERS data structure. @param[in, out] Buffer A pointer to the source buffer for the data. @param[in] ByteCount The length of the data. @param[in] Read Flag used to determine the data transfer direction. Read equals 1, means data transferred from device to host;Read equals 0, means data transferred from host to device. @param[in] AtaCommandBlock A pointer to EFI_ATA_COMMAND_BLOCK data structure. @param[in, out] AtaStatusBlock A pointer to EFI_ATA_STATUS_BLOCK data structure. @param[in] Timeout The time to complete the command, uses 100ns as a unit. @param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK used by non-blocking mode. @retval EFI_SUCCESS send out the ATA command and device send required data successfully. @retval EFI_DEVICE_ERROR command sent failed. **/ EFI_STATUS EFIAPI AtaPioDataInOut ( IN EFI_PCI_IO_PROTOCOL *PciIo, IN EFI_IDE_REGISTERS *IdeRegisters, IN OUT VOID *Buffer, IN UINT64 ByteCount, IN BOOLEAN Read, IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock, IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock, IN UINT64 Timeout, IN ATA_NONBLOCK_TASK *Task ); #endif