--- /dev/null
+/** @file\r
+ The EFI_ATA_PASS_THRU_PROTOCOL provides information about an ATA controller and the ability\r
+ to send ATA Command Blocks to any ATA device attached to that ATA controller. The information\r
+ includes the attributes of the ATA controller.\r
+\r
+ Copyright (c) 2009, Intel Corporation \r
+ All rights reserved. This program and the accompanying materials \r
+ are licensed and made available under the terms and conditions of the BSD License \r
+ which accompanies this distribution. The full text of the license may be found at \r
+ http://opensource.org/licenses/bsd-license.php \r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+\r
+**/\r
+\r
+#ifndef __ATA_PASS_THROUGH_H__\r
+#define __ATA_PASS_THROUGH_H__\r
+\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_GUID \\r
+ { \\r
+ 0x1d3de7f0, 0x807, 0x424f, {0xaa, 0x69, 0x11, 0xa5, 0x4e, 0x19, 0xa4, 0x6f } \\r
+ }\r
+\r
+typedef struct _EFI_ATA_PASS_THRU_PROTOCOL EFI_ATA_PASS_THRU_PROTOCOL;\r
+\r
+typedef struct {\r
+ UINT32 Attributes;\r
+ UINT32 IoAlign;\r
+} EFI_ATA_PASS_THRU_MODE;\r
+\r
+///\r
+/// If this bit is set, then the EFI_ATA_PASS_THRU_PROTOCOL interface is for physical\r
+/// devices on the ATA controller.\r
+///\r
+#define EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL 0x0001\r
+///\r
+/// If this bit is set, then the EFI_ATA_PASS_THRU_PROTOCOL interface is for logical\r
+/// devices on the ATA controller.\r
+///\r
+#define EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL 0x0002\r
+///\r
+/// If this bit is set, then the EFI_ATA_PASS_THRU_PROTOCOL interface supports non blocking\r
+/// I/O. Every EFI_ATA_PASS_THRU_PROTOCOL must support blocking I/O. The support of non-blocking\r
+/// I/O is optional.\r
+///\r
+#define EFI_ATA_PASS_THRU_ATTRIBUTES_NONBLOCKIO 0x0004\r
+\r
+typedef struct _EFI_ATA_COMMAND_BLOCK {\r
+ UINT8 Reserved1[2];\r
+ UINT8 AtaCommand;\r
+ UINT8 AtaFeatures;\r
+ UINT8 AtaSectorNumber;\r
+ UINT8 AtaCylinderLow;\r
+ UINT8 AtaCylinderHigh;\r
+ UINT8 AtaDeviceHead;\r
+ UINT8 AtaSectorNumberExp;\r
+ UINT8 AtaCylinderLowExp;\r
+ UINT8 AtaCylinderHighExp; \r
+ UINT8 AtaFeaturesExp;\r
+ UINT8 AtaSectorCount;\r
+ UINT8 AtaSectorCountExp;\r
+ UINT8 Reserved2[6];\r
+} EFI_ATA_COMMAND_BLOCK;\r
+\r
+typedef struct _EFI_ATA_STATUS_BLOCK {\r
+ UINT8 Reserved1[2];\r
+ UINT8 AtaStatus;\r
+ UINT8 AtaError;\r
+ UINT8 AtaSectorNumber;\r
+ UINT8 AtaCylinderLow;\r
+ UINT8 AtaCylinderHigh;\r
+ UINT8 AtaDeviceHead;\r
+ UINT8 AtaSectorNumberExp;\r
+ UINT8 AtaCylinderLowExp;\r
+ UINT8 AtaCylinderHighExp; \r
+ UINT8 Reserved2;\r
+ UINT8 AtaSectorCount;\r
+ UINT8 AtaSectorCountExp;\r
+ UINT8 Reserved2[6];\r
+} EFI_ATA_STATUS_BLOCK;\r
+\r
+typedef UINT8 EFI_ATA_PASS_THRU_CMD_PROTOCOL;\r
+\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_ATA_HARDWARE_RESET 0x00\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_ATA_SOFTWARE_RESET 0x01\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA 0x02\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN 0x04\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT 0x05\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_DMA 0x06\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_DMA_QUEUED 0x07\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_DEVICE_DIAGNOSTIC 0x08\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_DEVICE_RESET 0x09\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN 0x0A\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT 0x0B\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_FPDMA 0x0C\r
+#define EFI_ATA_PASS_THRU_PROTOCOL_RETURN_RESPONSE 0xFF\r
+\r
+typedef UINT8 EFI_ATA_PASS_THRU_LENGTH;\r
+\r
+#define EFI_ATA_PASS_THRU_LENGTH_BYTES 0x80\r
+\r
+\r
+#define EFI_ATA_PASS_THRU_LENGTH_MASK 0x70\r
+#define EFI_ATA_PASS_THRU_LENGTH_NO_DATA_TRANSFER 0x00\r
+#define EFI_ATA_PASS_THRU_LENGTH_FEATURES 0x10\r
+#define EFI_ATA_PASS_THRU_LENGTH_SECTOR_COUNT 0x20\r
+#define EFI_ATA_PASS_THRU_LENGTH_TPSIU 0x30\r
+\r
+#define EFI_ATA_PASS_THRU_LENGTH_COUNT 0x0F\r
+\r
+typedef struct {\r
+ ///\r
+ /// A pointer to the sense data that was generated by the execution of the ATA\r
+ /// command. It must be aligned to the boundary specified in the IoAlign field\r
+ /// in the EFI_ATA_PASS_THRU_MODE structure.\r
+ ///\r
+ EFI_ATA_STATUS_BLOCK *Asb;\r
+ ///\r
+ /// A pointer to buffer that contains the Command Data Block to send to the ATA\r
+ /// device specified by Port and PortMultiplierPort.\r
+ ///\r
+ EFI_ATA_COMMAND_BLOCK *Acb;\r
+ ///\r
+ /// The timeout, in 100 ns units, to use for the execution of this ATA command.\r
+ /// A Timeout value of 0 means that this function will wait indefinitely for the\r
+ /// ATA command to execute. If Timeout is greater than zero, then this function\r
+ /// will return EFI_TIMEOUT if the time required to execute the ATA command is\r
+ /// greater than Timeout.\r
+ ///\r
+ UINT64 Timeout;\r
+ ///\r
+ /// A pointer to the data buffer to transfer between the ATA controller and the\r
+ /// ATA device for read and bidirectional commands. For all write and non data\r
+ /// commands where InTransferLength is 0 this field is optional and may be NULL.\r
+ /// If this field is not NULL, then it must be aligned on the boundary specified\r
+ /// by the IoAlign field in the EFI_ATA_PASS_THRU_MODE structure.\r
+ ///\r
+ VOID *InDataBuffer;\r
+ ///\r
+ /// A pointer to the data buffer to transfer between the ATA controller and the\r
+ /// ATA device for write or bidirectional commands. For all read and non data\r
+ /// commands where OutTransferLength is 0 this field is optional and may be NULL.\r
+ /// If this field is not NULL, then it must be aligned on the boundary specified\r
+ /// by the IoAlign field in the EFI_ATA_PASS_THRU_MODE structure.\r
+ ///\r
+ VOID *OutDataBuffer;\r
+ ///\r
+ /// On input, the size, in bytes, of InDataBuffer. On output, the number of bytes\r
+ /// transferred between the ATA controller and the ATA device. If InTransferLength\r
+ /// is larger than the ATA controller can handle, no data will be transferred,\r
+ /// InTransferLength will be updated to contain the number of bytes that the ATA\r
+ /// controller is able to transfer, and EFI_BAD_BUFFER_SIZE will be returned.\r
+ ///\r
+ UINT32 InTransferLength;\r
+ ///\r
+ /// On Input, the size, in bytes of OutDataBuffer. On Output, the Number of bytes\r
+ /// transferred between ATA Controller and the ATA device. If OutTransferLength is\r
+ /// larger than the ATA controller can handle, no data will be transferred, \r
+ /// OutTransferLength will be updated to contain the number of bytes that the ATA\r
+ /// controller is able to transfer, and EFI_BAD_BUFFER_SIZE will be returned.\r
+ ///\r
+ UINT32 OutTransferLength;\r
+ ///\r
+ /// Specifies the protocol used when the ATA device executes the command.\r
+ ///\r
+ EFI_ATA_PASS_THRU_CMD_PROTOCOL Protocol;\r
+ ///\r
+ /// Specifies the way in which the ATA command length is encoded.\r
+ ///\r
+ EFI_ATA_PASS_THRU_LENGTH Length;\r
+} EFI_ATA_PASS_THRU_COMMAND_PACKET;\r
+\r
+\r
+/**\r
+ Sends an ATA command to an ATA device that is attached to the ATA controller. This function\r
+ supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,\r
+ and the non-blocking I/O functionality is optional.\r
+\r
+ @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance. \r
+ @param[in] Port The port number of the ATA device to send the command. \r
+ @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.\r
+ If there is no port multiplier, then specify 0.\r
+ @param[in,out] Packet A pointer to the ATA command to send to the ATA device specified by Port\r
+ and PortMultiplierPort.\r
+ @param[in] Event If non-blocking I/O is not supported then Event is ignored, and blocking\r
+ I/O is performed. If Event is NULL, then blocking I/O is performed. If\r
+ Event is not NULL and non blocking I/O is supported, then non-blocking\r
+ I/O is performed, and Event will be signaled when the ATA command completes.\r
+\r
+ @retval EFI_SUCCESS The ATA command was sent by the host. For bi-directional commands, \r
+ InTransferLength bytes were transferred from InDataBuffer. For write and\r
+ bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer.\r
+ @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number of bytes that could be transferred\r
+ is returned in InTransferLength. For write and bi-directional commands, \r
+ OutTransferLength bytes were transferred by OutDataBuffer.\r
+ @retval EFI_NOT_READY The ATA command could not be sent because there are too many ATA commands\r
+ already queued. The caller may retry again later.\r
+ @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the ATA command.\r
+ @retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents of Acb are invalid. The ATA\r
+ command was not sent, so no additional status information is available.\r
+\r
+**/\r
+typedef\r
+EFI_STATUS\r
+(EFIAPI *EFI_ATA_PASS_THRU_PASSTHRU)(\r
+ IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
+ IN UINT16 Port,\r
+ IN UINT16 PortMultiplierPort,\r
+ IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,\r
+ IN EFI_EVENT Event OPTIONAL\r
+ );\r
+\r
+/**\r
+ Used to retrieve the lis t of legal port numbers for ATA devices on an ATA controller.\r
+ These can either be the list of ports where ATA devices are actually present or the\r
+ list of legal port numbers for the ATA controller. Regardless, the caller of this\r
+ function must probe the port number returned to see if an ATA device is actually\r
+ present at that location on the ATA controller.\r
+\r
+ The GetNextPort() function retrieves the port number on an ATA controller. If on input\r
+ Port is 0xFFFF, then the port number of the first port on the ATA controller is returned\r
+ in Port and EFI_SUCCESS is returned.\r
+\r
+ If Port is a port number that was returned on a previous call to GetNextPort(), then the\r
+ port number of the next port on the ATA controller is returned in Port, and EFI_SUCCESS\r
+ is returned. If Port is not 0xFFFF and Port was not returned on a previous call to\r
+ GetNextPort(), then EFI_INVALID_PARAMETER is returned.\r
+\r
+ If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND is\r
+ returned.\r
+\r
+ @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance. \r
+ @param[in,out] Port On input, a pointer to the port number on the ATA controller.\r
+ On output, a pointer to the next port number on the ATA\r
+ controller. An input value of 0xFFFF retrieves the first port\r
+ number on the ATA controller.\r
+\r
+ @retval EFI_SUCCESS The next port number on the ATA controller was returned in Port.\r
+ @retval EFI_NOT_FOUND There are no more ports on this ATA controller.\r
+ @retval EFI_INVALID_PARAMETER Port is not 0xFFFF and Port was not returned on a previous call\r
+ to GetNextPort().\r
+\r
+**/\r
+typedef\r
+EFI_STATUS\r
+(EFIAPI *EFI_ATA_PASS_THRU_GET_NEXT_PORT)(\r
+ IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
+ IN OUT UINT16 *Port\r
+ );\r
+\r
+/**\r
+ Used to retrieve the list of legal port multiplier port numbers for ATA devices on a port of an ATA \r
+ controller. These can either be the list of port multiplier ports where ATA devices are actually \r
+ present on port or the list of legal port multiplier ports on that port. Regardless, the caller of this \r
+ function must probe the port number and port multiplier port number returned to see if an ATA \r
+ device is actually present.\r
+\r
+ The GetNextDevice() function retrieves the port multiplier port number of an ATA device \r
+ present on a port of an ATA controller.\r
+ \r
+ If PortMultiplierPort points to a port multiplier port number value that was returned on a \r
+ previous call to GetNextDevice(), then the port multiplier port number of the next ATA device\r
+ on the port of the ATA controller is returned in PortMultiplierPort, and EFI_SUCCESS is\r
+ returned.\r
+ \r
+ If PortMultiplierPort points to 0xFFFF, then the port multiplier port number of the first \r
+ ATA device on port of the ATA controller is returned in PortMultiplierPort and \r
+ EFI_SUCCESS is returned.\r
+ \r
+ If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort\r
+ was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER\r
+ is returned.\r
+ \r
+ If PortMultiplierPort is the port multiplier port number of the last ATA device on the port of \r
+ the ATA controller, then EFI_NOT_FOUND is returned.\r
+\r
+ @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
+ @param[in] Port The port number present on the ATA controller.\r
+ @param[in,out] PortMultiplierPort On input, a pointer to the port multiplier port number of an\r
+ ATA device present on the ATA controller. \r
+ If on input a PortMultiplierPort of 0xFFFF is specified, \r
+ then the port multiplier port number of the first ATA device\r
+ is returned. On output, a pointer to the port multiplier port\r
+ number of the next ATA device present on an ATA controller.\r
+\r
+ @retval EFI_SUCCESS The port multiplier port number of the next ATA device on the port\r
+ of the ATA controller was returned in PortMultiplierPort.\r
+ @retval EFI_NOT_FOUND There are no more ATA devices on this port of the ATA controller.\r
+ @retval EFI_INVALID_PARAMETER PortMultiplierPort is not 0xFFFF, and PortMultiplierPort was not\r
+ returned on a previous call to GetNextDevice().\r
+\r
+**/\r
+typedef\r
+EFI_STATUS\r
+(EFIAPI *EFI_ATA_PASS_THRU_GET_NEXT_DEVICE)(\r
+ IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
+ IN UINT16 Port,\r
+ IN OUT UINT16 *PortMultiplierPort\r
+ );\r
+\r
+/**\r
+ Used to allocate and build a device path node for an ATA device on an ATA controller.\r
+\r
+ The BuildDevicePath() function allocates and builds a single device node for the ATA\r
+ device specified by Port and PortMultiplierPort. If the ATA device specified by Port and\r
+ PortMultiplierPort is not present on the ATA controller, then EFI_NOT_FOUND is returned.\r
+ If DevicePath is NULL, then EFI_INVALID_PARAMETER is returned. If there are not enough\r
+ resources to allocate the device path node, then EFI_OUT_OF_RESOURCES is returned.\r
+\r
+ Otherwise, DevicePath is allocated with the boot service AllocatePool(), the contents of\r
+ DevicePath are initialized to describe the ATA device specified by Port and PortMultiplierPort,\r
+ and EFI_SUCCESS is returned.\r
+\r
+ @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
+ @param[in] Port Port specifies the port number of the ATA device for which a\r
+ device path node is to be allocated and built.\r
+ @param[in] PortMultiplierPort The port multiplier port number of the ATA device for which a\r
+ device path node is to be allocated and built. If there is no\r
+ port multiplier, then specify 0.\r
+ @param[in,out] DevicePath A pointer to a single device path node that describes the ATA\r
+ device specified by Port and PortMultiplierPort. This function\r
+ is responsible for allocating the buffer DevicePath with the\r
+ boot service AllocatePool(). It is the caller¡¯s responsibility\r
+ to free DevicePath when the caller is finished with DevicePath.\r
+ @retval EFI_SUCCESS The device path node that describes the ATA device specified by\r
+ Port and PortMultiplierPort was allocated and returned in DevicePath.\r
+ @retval EFI_NOT_FOUND The ATA device specified by Port and PortMultiplierPort does not\r
+ exist on the ATA controller.\r
+ @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
+ @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.\r
+\r
+**/\r
+typedef\r
+EFI_STATUS\r
+(EFIAPI *EFI_ATA_PASS_THRU_BUILD_DEVICE_PATH)(\r
+ IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
+ IN UINT16 Port,\r
+ IN UINT16 PortMultiplierPort,\r
+ IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r
+ );\r
+\r
+/**\r
+ Used to translate a device path node to a port number and port multiplier port number.\r
+\r
+ The GetDevice() function determines the port and port multiplier port number associated with\r
+ the ATA device described by DevicePath. If DevicePath is a device path node type that the\r
+ ATA Pass Thru driver supports, then the ATA Pass Thru driver will attempt to translate the contents \r
+ DevicePath into a port number and port multiplier port number.\r
+\r
+ If this translation is successful, then that port number and port multiplier port number are returned\r
+ in Port and PortMultiplierPort, and EFI_SUCCESS is returned.\r
+\r
+ If DevicePath, Port, or PortMultiplierPort are NULL, then EFI_INVALID_PARAMETER is returned.\r
+\r
+ If DevicePath is not a device path node type that the ATA Pass Thru driver supports, then \r
+ EFI_UNSUPPORTED is returned.\r
+\r
+ If DevicePath is a device path node type that the ATA Pass Thru driver supports, but there is not \r
+ a valid translation from DevicePath to a port number and port multiplier port number, then \r
+ EFI_NOT_FOUND is returned.\r
+\r
+ @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
+ @param[in] DevicePath A pointer to the device path node that describes an ATA device on the\r
+ ATA controller.\r
+ @param[out] Port On return, points to the port number of an ATA device on the ATA controller.\r
+ @param[out] PortMultiplierPort On return, points to the port multiplier port number of an ATA device\r
+ on the ATA controller.\r
+\r
+ @retval EFI_SUCCESS DevicePath was successfully translated to a port number and port multiplier\r
+ port number, and they were returned in Port and PortMultiplierPort.\r
+ @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
+ @retval EFI_INVALID_PARAMETER Port is NULL.\r
+ @retval EFI_INVALID_PARAMETER PortMultiplierPort is NULL.\r
+ @retval EFI_UNSUPPORTED This driver does not support the device path node type in DevicePath.\r
+ @retval EFI_NOT_FOUND A valid translation from DevicePath to a port number and port multiplier\r
+ port number does not exist.\r
+**/\r
+typedef\r
+EFI_STATUS\r
+(EFIAPI *EFI_ATA_PASS_THRU_GET_DEVICE)(\r
+ IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
+ OUT UINT16 *Port,\r
+ OUT UINT16 *PortMultiplierPort\r
+ );\r
+\r
+/**\r
+ Resets a specific port on the ATA controller. This operation also resets all the ATA devices\r
+ connected to the port.\r
+\r
+ The ResetChannel() function resets an a specific port on an ATA controller. This operation\r
+ resets all the ATA devices connected to that port. If this ATA controller does not support\r
+ a reset port operation, then EFI_UNSUPPORTED is returned.\r
+\r
+ If a device error occurs while executing that port reset operation, then EFI_DEVICE_ERROR is\r
+ returned.\r
+\r
+ If a timeout occurs during the execution of the port reset operation, then EFI_TIMEOUT is returned.\r
+\r
+ If the port reset operation is completed, then EFI_SUCCESS is returned.\r
+\r
+ @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
+ @param[in] Port The port number on the ATA controller.\r
+\r
+ @retval EFI_SUCCESS The ATA controller port was reset.\r
+ @retval EFI_UNSUPPORTED The ATA controller does not support a port reset operation.\r
+ @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA port.\r
+ @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA port.\r
+\r
+**/\r
+typedef\r
+EFI_STATUS\r
+(EFIAPI *EFI_ATA_PASS_THRU_RESET_PORT)(\r
+ IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
+ IN UINT16 Port\r
+ );\r
+\r
+/**\r
+ Resets an ATA device that is connected to an ATA controller.\r
+\r
+ The ResetDevice() function resets the ATA device specified by Port and PortMultiplierPort.\r
+ If this ATA controller does not support a device reset operation, then EFI_UNSUPPORTED is\r
+ returned.\r
+\r
+ If Port or PortMultiplierPort are not in a valid range for this ATA controller, then \r
+ EFI_INVALID_PARAMETER is returned.\r
+\r
+ If a device error occurs while executing that device reset operation, then EFI_DEVICE_ERROR\r
+ is returned.\r
+\r
+ If a timeout occurs during the execution of the device reset operation, then EFI_TIMEOUT is\r
+ returned.\r
+\r
+ If the device reset operation is completed, then EFI_SUCCESS is returned.\r
+\r
+ @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
+ @param[in] Port Port represents the port number of the ATA device to be reset.\r
+ @param[in] PortMultiplierPort The port multiplier port number of the ATA device to reset.\r
+ If there is no port multiplier, then specify 0.\r
+ @retval EFI_SUCCESS The ATA device specified by Port and PortMultiplierPort was reset.\r
+ @retval EFI_UNSUPPORTED The ATA controller does not support a device reset operation.\r
+ @retval EFI_INVALID_PARAMETER Port or PortMultiplierPort are invalid.\r
+ @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA device\r
+ specified by Port and PortMultiplierPort.\r
+ @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA device\r
+ specified by Port and PortMultiplierPort.\r
+\r
+**/\r
+typedef\r
+EFI_STATUS\r
+(EFIAPI *EFI_ATA_PASS_THRU_RESET_DEVICE)(\r
+ IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
+ IN UINT16 Port,\r
+ IN UINT16 PortMultiplierPort\r
+ );\r
+\r
+struct _EFI_ATA_PASS_THRU_PROTOCOL {\r
+ EFI_ATA_PASS_THRU_MODE *Mode;\r
+ EFI_ATA_PASS_THRU_PASSTHRU PassThru;\r
+ EFI_ATA_PASS_THRU_GET_NEXT_PORT GetNextPort;\r
+ EFI_ATA_PASS_THRU_GET_NEXT_DEVICE GetNextDevice;\r
+ EFI_ATA_PASS_THRU_BUILD_DEVICE_PATH BuildDevicePath;\r
+ EFI_ATA_PASS_THRU_GET_DEVICE GetDevice;\r
+ EFI_ATA_PASS_THRU_RESET_PORT ResetPort;\r
+ EFI_ATA_PASS_THRU_RESET_DEVICE ResetDevice;\r
+};\r
+\r
+extern EFI_GUID gEfiAtaPassThruProtocolGuid;\r
+\r
+#endif\r
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