/** @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