/** @file | |
The EFI_ATA_PASS_THRU_PROTOCOL provides information about an ATA controller and the ability | |
to send ATA Command Blocks to any ATA device attached to that ATA controller. The information | |
includes the attributes of the ATA controller. | |
Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR> | |
This program and the accompanying materials | |
are licensed and made available under the terms and conditions of the BSD License | |
which accompanies this distribution. The full text of the license may be found at | |
http://opensource.org/licenses/bsd-license.php | |
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
**/ | |
#ifndef __ATA_PASS_THROUGH_H__ | |
#define __ATA_PASS_THROUGH_H__ | |
#define EFI_ATA_PASS_THRU_PROTOCOL_GUID \ | |
{ \ | |
0x1d3de7f0, 0x807, 0x424f, {0xaa, 0x69, 0x11, 0xa5, 0x4e, 0x19, 0xa4, 0x6f } \ | |
} | |
typedef struct _EFI_ATA_PASS_THRU_PROTOCOL EFI_ATA_PASS_THRU_PROTOCOL; | |
typedef struct { | |
UINT32 Attributes; | |
UINT32 IoAlign; | |
} EFI_ATA_PASS_THRU_MODE; | |
/// | |
/// If this bit is set, then the EFI_ATA_PASS_THRU_PROTOCOL interface is for physical | |
/// devices on the ATA controller. | |
/// | |
#define EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL 0x0001 | |
/// | |
/// If this bit is set, then the EFI_ATA_PASS_THRU_PROTOCOL interface is for logical | |
/// devices on the ATA controller. | |
/// | |
#define EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL 0x0002 | |
/// | |
/// If this bit is set, then the EFI_ATA_PASS_THRU_PROTOCOL interface supports non blocking | |
/// I/O. Every EFI_ATA_PASS_THRU_PROTOCOL must support blocking I/O. The support of non-blocking | |
/// I/O is optional. | |
/// | |
#define EFI_ATA_PASS_THRU_ATTRIBUTES_NONBLOCKIO 0x0004 | |
typedef struct _EFI_ATA_COMMAND_BLOCK { | |
UINT8 Reserved1[2]; | |
UINT8 AtaCommand; | |
UINT8 AtaFeatures; | |
UINT8 AtaSectorNumber; | |
UINT8 AtaCylinderLow; | |
UINT8 AtaCylinderHigh; | |
UINT8 AtaDeviceHead; | |
UINT8 AtaSectorNumberExp; | |
UINT8 AtaCylinderLowExp; | |
UINT8 AtaCylinderHighExp; | |
UINT8 AtaFeaturesExp; | |
UINT8 AtaSectorCount; | |
UINT8 AtaSectorCountExp; | |
UINT8 Reserved2[6]; | |
} EFI_ATA_COMMAND_BLOCK; | |
typedef struct _EFI_ATA_STATUS_BLOCK { | |
UINT8 Reserved1[2]; | |
UINT8 AtaStatus; | |
UINT8 AtaError; | |
UINT8 AtaSectorNumber; | |
UINT8 AtaCylinderLow; | |
UINT8 AtaCylinderHigh; | |
UINT8 AtaDeviceHead; | |
UINT8 AtaSectorNumberExp; | |
UINT8 AtaCylinderLowExp; | |
UINT8 AtaCylinderHighExp; | |
UINT8 Reserved2; | |
UINT8 AtaSectorCount; | |
UINT8 AtaSectorCountExp; | |
UINT8 Reserved3[6]; | |
} EFI_ATA_STATUS_BLOCK; | |
typedef UINT8 EFI_ATA_PASS_THRU_CMD_PROTOCOL; | |
#define EFI_ATA_PASS_THRU_PROTOCOL_ATA_HARDWARE_RESET 0x00 | |
#define EFI_ATA_PASS_THRU_PROTOCOL_ATA_SOFTWARE_RESET 0x01 | |
#define EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA 0x02 | |
#define EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN 0x04 | |
#define EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT 0x05 | |
#define EFI_ATA_PASS_THRU_PROTOCOL_DMA 0x06 | |
#define EFI_ATA_PASS_THRU_PROTOCOL_DMA_QUEUED 0x07 | |
#define EFI_ATA_PASS_THRU_PROTOCOL_DEVICE_DIAGNOSTIC 0x08 | |
#define EFI_ATA_PASS_THRU_PROTOCOL_DEVICE_RESET 0x09 | |
#define EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN 0x0A | |
#define EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT 0x0B | |
#define EFI_ATA_PASS_THRU_PROTOCOL_FPDMA 0x0C | |
#define EFI_ATA_PASS_THRU_PROTOCOL_RETURN_RESPONSE 0xFF | |
typedef UINT8 EFI_ATA_PASS_THRU_LENGTH; | |
#define EFI_ATA_PASS_THRU_LENGTH_BYTES 0x80 | |
#define EFI_ATA_PASS_THRU_LENGTH_MASK 0x70 | |
#define EFI_ATA_PASS_THRU_LENGTH_NO_DATA_TRANSFER 0x00 | |
#define EFI_ATA_PASS_THRU_LENGTH_FEATURES 0x10 | |
#define EFI_ATA_PASS_THRU_LENGTH_SECTOR_COUNT 0x20 | |
#define EFI_ATA_PASS_THRU_LENGTH_TPSIU 0x30 | |
#define EFI_ATA_PASS_THRU_LENGTH_COUNT 0x0F | |
typedef struct { | |
/// | |
/// A pointer to the sense data that was generated by the execution of the ATA | |
/// command. It must be aligned to the boundary specified in the IoAlign field | |
/// in the EFI_ATA_PASS_THRU_MODE structure. | |
/// | |
EFI_ATA_STATUS_BLOCK *Asb; | |
/// | |
/// A pointer to buffer that contains the Command Data Block to send to the ATA | |
/// device specified by Port and PortMultiplierPort. | |
/// | |
EFI_ATA_COMMAND_BLOCK *Acb; | |
/// | |
/// The timeout, in 100 ns units, to use for the execution of this ATA command. | |
/// A Timeout value of 0 means that this function will wait indefinitely for the | |
/// ATA command to execute. If Timeout is greater than zero, then this function | |
/// will return EFI_TIMEOUT if the time required to execute the ATA command is | |
/// greater than Timeout. | |
/// | |
UINT64 Timeout; | |
/// | |
/// A pointer to the data buffer to transfer between the ATA controller and the | |
/// ATA device for read and bidirectional commands. For all write and non data | |
/// commands where InTransferLength is 0 this field is optional and may be NULL. | |
/// If this field is not NULL, then it must be aligned on the boundary specified | |
/// by the IoAlign field in the EFI_ATA_PASS_THRU_MODE structure. | |
/// | |
VOID *InDataBuffer; | |
/// | |
/// A pointer to the data buffer to transfer between the ATA controller and the | |
/// ATA device for write or bidirectional commands. For all read and non data | |
/// commands where OutTransferLength is 0 this field is optional and may be NULL. | |
/// If this field is not NULL, then it must be aligned on the boundary specified | |
/// by the IoAlign field in the EFI_ATA_PASS_THRU_MODE structure. | |
/// | |
VOID *OutDataBuffer; | |
/// | |
/// On input, the size, in bytes, of InDataBuffer. On output, the number of bytes | |
/// transferred between the ATA controller and the ATA device. If InTransferLength | |
/// is larger than the ATA controller can handle, no data will be transferred, | |
/// InTransferLength will be updated to contain the number of bytes that the ATA | |
/// controller is able to transfer, and EFI_BAD_BUFFER_SIZE will be returned. | |
/// | |
UINT32 InTransferLength; | |
/// | |
/// On Input, the size, in bytes of OutDataBuffer. On Output, the Number of bytes | |
/// transferred between ATA Controller and the ATA device. If OutTransferLength is | |
/// larger than the ATA controller can handle, no data will be transferred, | |
/// OutTransferLength will be updated to contain the number of bytes that the ATA | |
/// controller is able to transfer, and EFI_BAD_BUFFER_SIZE will be returned. | |
/// | |
UINT32 OutTransferLength; | |
/// | |
/// Specifies the protocol used when the ATA device executes the command. | |
/// | |
EFI_ATA_PASS_THRU_CMD_PROTOCOL Protocol; | |
/// | |
/// Specifies the way in which the ATA command length is encoded. | |
/// | |
EFI_ATA_PASS_THRU_LENGTH Length; | |
} EFI_ATA_PASS_THRU_COMMAND_PACKET; | |
/** | |
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. | |
**/ | |
typedef | |
EFI_STATUS | |
(EFIAPI *EFI_ATA_PASS_THRU_PASSTHRU)( | |
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(). | |
**/ | |
typedef | |
EFI_STATUS | |
(EFIAPI *EFI_ATA_PASS_THRU_GET_NEXT_PORT)( | |
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(). | |
**/ | |
typedef | |
EFI_STATUS | |
(EFIAPI *EFI_ATA_PASS_THRU_GET_NEXT_DEVICE)( | |
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. | |
**/ | |
typedef | |
EFI_STATUS | |
(EFIAPI *EFI_ATA_PASS_THRU_BUILD_DEVICE_PATH)( | |
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. | |
**/ | |
typedef | |
EFI_STATUS | |
(EFIAPI *EFI_ATA_PASS_THRU_GET_DEVICE)( | |
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. | |
**/ | |
typedef | |
EFI_STATUS | |
(EFIAPI *EFI_ATA_PASS_THRU_RESET_PORT)( | |
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. | |
**/ | |
typedef | |
EFI_STATUS | |
(EFIAPI *EFI_ATA_PASS_THRU_RESET_DEVICE)( | |
IN EFI_ATA_PASS_THRU_PROTOCOL *This, | |
IN UINT16 Port, | |
IN UINT16 PortMultiplierPort | |
); | |
struct _EFI_ATA_PASS_THRU_PROTOCOL { | |
EFI_ATA_PASS_THRU_MODE *Mode; | |
EFI_ATA_PASS_THRU_PASSTHRU PassThru; | |
EFI_ATA_PASS_THRU_GET_NEXT_PORT GetNextPort; | |
EFI_ATA_PASS_THRU_GET_NEXT_DEVICE GetNextDevice; | |
EFI_ATA_PASS_THRU_BUILD_DEVICE_PATH BuildDevicePath; | |
EFI_ATA_PASS_THRU_GET_DEVICE GetDevice; | |
EFI_ATA_PASS_THRU_RESET_PORT ResetPort; | |
EFI_ATA_PASS_THRU_RESET_DEVICE ResetDevice; | |
}; | |
extern EFI_GUID gEfiAtaPassThruProtocolGuid; | |
#endif |