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Read-Capacity16 command added for SCSI drivers 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7999 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jji4 2009-04-01 08:24:58 +00:00
parent 312bc8f873
commit ccb491c862
3 changed files with 163 additions and 0 deletions
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22
MdePkg/Include/IndustryStandard/Scsi.h
View File

@ -49,6 +49,7 @@
#define EFI_SCSI_OP_READ6 0x08
#define EFI_SCSI_OP_READ10 0x28
#define EFI_SCSI_OP_READ_CAPACITY 0x25
#define EFI_SCSI_OP_READ_CAPACITY16 0x9e
#define EFI_SCSI_OP_READ_DEFECT 0x37
#define EFI_SCSI_OP_READ_LONG 0x3e
#define EFI_SCSI_OP_REASSIGN_BLK 0x07
@ -240,6 +241,27 @@ typedef struct {
UINT8 BlockSize0;
} EFI_SCSI_DISK_CAPACITY_DATA;
typedef struct {
UINT8 LastLba7;
UINT8 LastLba6;
UINT8 LastLba5;
UINT8 LastLba4;
UINT8 LastLba3;
UINT8 LastLba2;
UINT8 LastLba1;
UINT8 LastLba0;
UINT8 BlockSize3;
UINT8 BlockSize2;
UINT8 BlockSize1;
UINT8 BlockSize0;
UINT8 Protection;
UINT8 LogicPerPhysical;
UINT8 LowestAlignLogic2;
UINT8 LowestAlignLogic1;
UINT8 Reserved[16];
} EFI_SCSI_DISK_CAPACITY_DATA16;
#pragma pack()
//

47
MdePkg/Include/Library/UefiScsiLib.h
View File

@ -377,6 +377,53 @@ ScsiReadCapacityCommand (
);
/**
Function to submit read capacity16 command.
@param ScsiIo A pointer to SCSI IO protocol.
@param Timeout The length of timeout period.
@param SenseData A pointer to output sense data.
@param SenseDataLength The length of output sense data.
@param HostAdapterStatus The status of Host Adapter.
@param TargetStatus The status of the target.
@param DataBuffer A pointer to a data buffer.
@param DataLength The length of data buffer.
@param PMI Partial medium indicator.
@retval EFI_SUCCESS The status of the unit is tested 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 TransferLength.
@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
the SCSI Request Packet.
@retval EFI_INVALID_PARAMETER The contents of CommandPacket are invalid.
@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
ScsiReadCapacity16Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN VOID *SenseData,
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
OUT VOID *DataBuffer,
IN OUT UINT32 *DataLength,
IN BOOLEAN PMI
);
/**
Execute Read(10) SCSI command on a specific SCSI target.

94
MdePkg/Library/UefiScsiLib/UefiScsiLib.c
View File

@ -635,6 +635,100 @@ ScsiReadCapacityCommand (
}
/**
Function to submit read capacity16 command.
@param ScsiIo A pointer to SCSI IO protocol.
@param Timeout The length of timeout period.
@param SenseData A pointer to output sense data.
@param SenseDataLength The length of output sense data.
@param HostAdapterStatus The status of Host Adapter.
@param TargetStatus The status of the target.
@param DataBuffer A pointer to a data buffer.
@param DataLength The length of data buffer.
@param PMI Partial medium indicator.
@retval EFI_SUCCESS The status of the unit is tested 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 TransferLength.
@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
the SCSI Request Packet.
@retval EFI_INVALID_PARAMETER The contents of CommandPacket are invalid.
@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
ScsiReadCapacity16Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN VOID *SenseData,
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
OUT VOID *DataBuffer,
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[16];
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, 16);
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_CAPACITY16;
Cdb[1] = 0x10;
if (!PMI) {
//
// Partial medium indicator,if PMI is FALSE, the Cdb.2 ~ Cdb.9 MUST BE ZERO.
//
ZeroMem ((Cdb + 2), 8);
} else {
Cdb[14] |= 0x01;
}
Cdb[13] = 0x20;
CommandPacket.CdbLength = 16;
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.