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/** @file
UEFI SCSI Library implementation
Copyright (c) 2006 - 2008, Intel Corporation.<BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <Uefi.h>
#include <Library/DebugLib.h>
#include <Library/UefiScsiLib.h>
#include <Library/BaseMemoryLib.h>
#include <IndustryStandard/Scsi.h>
//
// Max bytes needed to represent ID of a SCSI device
//
#define EFI_SCSI_TARGET_MAX_BYTES (0x10)
//
// bit5..7 are for Logical unit number
// 11100000b (0xe0)
//
#define EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK 0xe0
//
// Scsi Command Length six or ten
//
#define EFI_SCSI_OP_LENGTH_SIX 0x6
#define EFI_SCSI_OP_LENGTH_TEN 0xa
/**
Execute Test Unit Ready SCSI command on a specific SCSI target.
Executes the Test Unit Ready command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
@param[in] ScsiIo A pointer to the SCSI I/O Protocol instance
for the specific SCSI target.
@param[in] Timeout The timeout in 100 ns units to use for the execution
of this SCSI Request Packet. A Timeout value of
zero means that this function will wait indefinitely
for the SCSI Request Packet to execute. If Timeout
is greater than zero, then this function will return
EFI_TIMEOUT if the time required to execute the SCSI
Request Packet is greater than Timeout.
@param[in, out] SenseData A pointer to sense data that was generated by
the execution of the SCSI Request Packet. This
buffer must be allocated by the caller.
If SenseDataLength is 0, then this parameter is
optional and may be NULL.
@param[in, out] SenseDataLength On input, a pointer to the length in bytes of
the SenseData buffer. On output, a poiinter to
the number of bytes written to the SenseData buffer.
@param[out] HostAdapterStatus The status of the SCSI Host Controller that produces
the SCSI bus containing the SCSI target specified by
ScsiIo when the SCSI Request Packet was executed.
See the EFI SCSI I/O Protocol in the UEFI Specification
for details on the possible return values.
@param[out] TargetStatus The status returned by the SCSI target specified
by ScsiIo when the SCSI Request Packat was executed
on the SCSI Host Controller. See the EFI SCSI I/O
Protocol in the UEFI Specification for details on
the possible return values.
@retval EFI_SUCCESS The command was executed successfully.
See HostAdapterStatus, TargetStatus, SenseDataLength,
and SenseData in that order for additional status
information.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already
queued. The SCSI Request Packet was not sent, so
no additional status information is available.
The caller may retry again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send
SCSI Request Packet. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in that
order for additional status information.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI
Host Controller). 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. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for
additional status information.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed,
but the entire DataBuffer could not be transferred.
The actual number of bytes transferred is returned
in InTransferLength.
**/
EFI_STATUS
EFIAPI
ScsiTestUnitReadyCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIX];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = NULL;
CommandPacket.InTransferLength= 0;
CommandPacket.OutDataBuffer = NULL;
CommandPacket.OutTransferLength= 0;
CommandPacket.SenseData = SenseData;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Test Unit Ready Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_TEST_UNIT_READY;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
CommandPacket.CdbLength = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
return Status;
}
/**
Execute Inquiry SCSI command on a specific SCSI target.
Executes the Inquiry command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If InquiryDataLength is NULL, then ASSERT().
@param[in] ScsiIo A pointer to the SCSI I/O Protocol instance
for the specific SCSI target.
@param[in] Timeout The timeout in 100 ns units to use for the
execution of this SCSI Request Packet. A Timeout
value of zero means that this function will wait
indefinitely for the SCSI Request Packet to execute.
If Timeout is greater than zero, then this function
will return EFI_TIMEOUT if the time required to
execute the SCSI Request Packet is greater than Timeout.
@param[in, out] SenseData A pointer to sense data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If SenseDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] SenseDataLength On input, the length in bytes of the SenseData buffer.
On output, the number of bytes written to the SenseData buffer.
@param[out] HostAdapterStatus The status of the SCSI Host Controller that
produces the SCSI bus containing the SCSI
target specified by ScsiIo when the SCSI
Request Packet was executed. See the EFI
SCSI I/O Protocol in the UEFI Specification
for details on the possible return values.
@param[out] TargetStatus The status returned by the SCSI target specified
by ScsiIo when the SCSI Request Packat was
executed on the SCSI Host Controller.
See the EFI SCSI I/O Protocol in the UEFI
Specification for details on the possible
return values.
@param[in, out] InquiryDataBuffer A pointer to inquiry data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If InquiryDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] InquiryDataLength On input, a pointer to the length in bytes
of the InquiryDataBuffer buffer.
On output, a pointer to the number of bytes
written to the InquiryDataBuffer buffer.
@param[in] EnableVitalProductData If TRUE, then the supported vital product
data is returned in InquiryDataBuffer.
If FALSE, then the standard inquiry data is
returned in InquiryDataBuffer.
@retval EFI_SUCCESS The command was executed successfully. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in that order
for additional status information.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire
InquiryDataBuffer could not be transferred. The actual
number of bytes transferred is returned in InquiryDataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there
are too many SCSI Command Packets already queued.
The SCSI Request Packet was not sent, so no additional
status information is available. The caller may retry again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI
Request Packet. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for additional
status information.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not
supported by the SCSI initiator(i.e., SCSI Host Controller).
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. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for
additional status information.
**/
EFI_STATUS
EFIAPI
ScsiInquiryCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *InquiryDataBuffer, OPTIONAL
IN OUT UINT32 *InquiryDataLength,
IN BOOLEAN EnableVitalProductData
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIX];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (InquiryDataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = InquiryDataBuffer;
CommandPacket.InTransferLength= *InquiryDataLength;
CommandPacket.SenseData = SenseData;
CommandPacket.SenseDataLength = *SenseDataLength;
CommandPacket.Cdb = Cdb;
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_INQUIRY;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
if (EnableVitalProductData) {
Cdb[1] |= 0x01;
}
if (*InquiryDataLength > 0xff) {
*InquiryDataLength = 0xff;
}
Cdb[4] = (UINT8) (*InquiryDataLength);
CommandPacket.CdbLength = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*InquiryDataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Mode Sense(10) SCSI command on a specific SCSI target.
Executes the SCSI Mode Sense(10) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout
after Timeout 100 ns units. The DBDField, PageControl, and PageCode parameters
are used to construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
@param[in] ScsiIo A pointer to the SCSI I/O Protocol instance
for the specific SCSI target.
@param[in] Timeout The timeout in 100 ns units to use for the
execution of this SCSI Request Packet. A Timeout
value of zero means that this function will wait
indefinitely for the SCSI Request Packet to execute.
If Timeout is greater than zero, then this function
will return EFI_TIMEOUT if the time required to
execute the SCSI Request Packet is greater than Timeout.
@param[in, out] SenseData A pointer to sense data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If SenseDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] SenseDataLength On input, the length in bytes of the SenseData buffer.
On output, the number of bytes written to the SenseData buffer.
@param[out] HostAdapterStatus The status of the SCSI Host Controller that
produces the SCSI bus containing the SCSI target
specified by ScsiIo when the SCSI Request Packet
was executed. See the EFI SCSI I/O Protocol in the
UEFI Specification for details on the possible
return values.
@param[out] TargetStatus The status returned by the SCSI target specified
by ScsiIo when the SCSI Request Packat was executed
on the SCSI Host Controller. See the EFI SCSI
I/O Protocol in the UEFI Specification for details
on the possible return values.
@param[in, out] DataBuffer A pointer to data that was generated by the
execution of the SCSI Request Packet. This
buffer must be allocated by the caller. If
DataLength is 0, then this parameter is optional
and may be NULL.
@param[in, out] DataLength On input, a pointer to the length in bytes of
the DataBuffer buffer. On output, a pointer
to the number of bytes written to the DataBuffer
buffer.
@param[in] DBDField Specifies the DBD field of the CDB for this SCSI Command.
@param[in] PageControl Specifies the PC field of the CDB for this SCSI Command.
@param[in] PageCode Specifies the Page Control field of the CDB for this SCSI Command.
@retval EFI_SUCCESS The command was executed successfully.
See HostAdapterStatus, TargetStatus, SenseDataLength,
and SenseData in that order for additional status information.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the
entire DataBuffer could not be transferred.
The actual number of bytes transferred is returned
in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already queued.
The SCSI Request Packet was not sent, so no additional
status information is available. The caller may retry
again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send
SCSI Request Packet. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for
additional status information.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI
Host Controller). 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. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in that
order for additional status information.
**/
EFI_STATUS
EFIAPI
ScsiModeSense10Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT8 DBDField, OPTIONAL
IN UINT8 PageControl,
IN UINT8 PageCode
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Mode Sense (10) Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_MODE_SEN10;
//
// DBDField is in Cdb[1] bit3 of (bit7..0)
//
Cdb[1] = (UINT8) ((Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK) + ((DBDField << 3) & 0x08));
//
// PageControl is in Cdb[2] bit7..6, PageCode is in Cdb[2] bit5..0
//
Cdb[2] = (UINT8) ((PageControl & 0xc0) | (PageCode & 0x3f));
Cdb[7] = (UINT8) (*DataLength >> 8);
Cdb[8] = (UINT8) (*DataLength);
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Request Sense SCSI command on a specific SCSI target.
Executes the Request Sense command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are
too many SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
**/
EFI_STATUS
EFIAPI
ScsiRequestSenseCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIX];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = SenseData;
CommandPacket.SenseData = NULL;
CommandPacket.InTransferLength= *SenseDataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Request Sense Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_REQUEST_SENSE;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
Cdb[4] = (UINT8) (*SenseDataLength);
CommandPacket.CdbLength = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = 0;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = (UINT8) CommandPacket.InTransferLength;
return Status;
}
/**
Execute Read Capacity SCSI command on a specific SCSI target.
Executes the SCSI Read Capacity command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after
Timeout 100 ns units. The PMI parameter is used to construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer A pointer to a data buffer.
@param[in, out] DataLength The length of data buffer.
@param[in] PMI Partial medium indicator.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire
DataBuffer could not be transferred. The actual
number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
**/
EFI_STATUS
EFIAPI
ScsiReadCapacityCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN BOOLEAN PMI
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Read Capacity Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_READ_CAPACITY;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
if (!PMI) {
//
// Partial medium indicator,if PMI is FALSE, the Cdb.2 ~ Cdb.5 MUST BE ZERO.
//
ZeroMem ((Cdb + 2), 4);
} else {
Cdb[8] |= 0x01;
}
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Read(10) SCSI command on a specific SCSI target.
Executes the SCSI Read(10) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout
after Timeout 100 ns units. The StartLba and SectorSize parameters are used to
construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer Read 10 command data.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The sector size.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire DataBuffer could
not be transferred. The actual number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
**/
EFI_STATUS
EFIAPI
ScsiRead10Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT32 StartLba,
IN UINT32 SectorSize
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Read (10) Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_READ10;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
Cdb[2] = (UINT8) (StartLba >> 24);
Cdb[3] = (UINT8) (StartLba >> 16);
Cdb[4] = (UINT8) (StartLba >> 8);
Cdb[5] = (UINT8) (StartLba & 0xff);
Cdb[7] = (UINT8) (SectorSize >> 8);
Cdb[8] = (UINT8) (SectorSize & 0xff);
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Write(10) SCSI command on a specific SCSI target.
Executes the SCSI Write(10) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after
Timeout 100 ns units. The StartLba and SectorSize parameters are used to construct
the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
@param[in] ScsiIo SCSI IO Protocol to use
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer A pointer to a data buffer.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The sector size.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire DataBuffer could
not be transferred. The actual number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
**/
EFI_STATUS
EFIAPI
ScsiWrite10Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT32 StartLba,
IN UINT32 SectorSize
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.OutDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.OutTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Write (10) Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_WRITE10;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
Cdb[2] = (UINT8) (StartLba >> 24);
Cdb[3] = (UINT8) (StartLba >> 16);
Cdb[4] = (UINT8) (StartLba >> 8);
Cdb[5] = (UINT8) StartLba;
Cdb[7] = (UINT8) (SectorSize >> 8);
Cdb[8] = (UINT8) SectorSize;
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_OUT;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.OutTransferLength;
return Status;
}
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