/**
* @brief This method will translate the ATA Identify Device data into
* SCSI read capacity 10 data.
* For more information on the parameters passed to this method,
* please reference sati_translate_data().
*
* @return none
*/
void sati_read_capacity_10_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * ata_input_data,
void * scsi_io
)
{
U32 lba_low = 0;
U32 lba_high = 0;
U32 sector_size = 0;
// Extract the sector information (sector size, logical blocks) from
// the retrieved ATA identify device data.
sati_ata_identify_device_get_sector_info(
(ATA_IDENTIFY_DEVICE_DATA_T*)ata_input_data,
&lba_high,
&lba_low,
§or_size
);
// SATA drives report a value that is one LBA larger than the last LBA.
// SCSI wants the last LBA. Make the correction here. lba_low is
// always decremented since it is an unsigned long the value 0 will
// wrap to 0xFFFFFFFF.
if ((lba_low == 0) && (lba_high == 0))
lba_high -= 1;
lba_low -= 1;
if(lba_high != 0)
{
sati_set_data_byte(sequence, scsi_io, 0, 0xFF);
sati_set_data_byte(sequence, scsi_io, 1, 0xFF);
sati_set_data_byte(sequence, scsi_io, 2, 0xFF);
sati_set_data_byte(sequence, scsi_io, 3, 0xFF);
}
else
{
// Build CDB for Read Capacity 10
// Fill in the Logical Block Address bytes.
sati_set_data_byte(sequence, scsi_io, 0, (U8)((lba_low >> 24) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 1, (U8)((lba_low >> 16) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 2, (U8)((lba_low >> 8) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 3, (U8)(lba_low & 0xFF));
}
// Fill in the sector size field.
sati_set_data_byte(sequence, scsi_io, 4, (U8)((sector_size >> 24) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 5, (U8)((sector_size >> 16) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 6, (U8)((sector_size >> 8) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 7, (U8)(sector_size & 0xFF));
}
static
U32 sati_mode_sense_10_build_llba_block_descriptor(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
U32 offset
)
{
U32 lba_low = 0;
U32 lba_high = 0;
U32 sector_size = 0;
// Extract the sector information (sector size, logical blocks) from
// the retrieved ATA identify device data.
sati_ata_identify_device_get_sector_info(
identify, &lba_low, &lba_high, §or_size
);
// Fill in the 8-byte logical block area
sati_set_data_byte(sequence, scsi_io, offset, (U8)((lba_high>>24) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+1, (U8)((lba_high>>16) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+2, (U8)((lba_high>>8) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+3, (U8)(lba_high & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+4, (U8)((lba_low>>24) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+5, (U8)((lba_low>>16) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+6, (U8)((lba_low>>8) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+7, (U8)(lba_low & 0xFF));
// Clear the reserved fields.
sati_set_data_byte(sequence, scsi_io, offset+8, 0);
sati_set_data_byte(sequence, scsi_io, offset+9, 0);
sati_set_data_byte(sequence, scsi_io, offset+10, 0);
sati_set_data_byte(sequence, scsi_io, offset+11, 0);
// Fill in the four byte Block Length field
sati_set_data_byte(sequence,scsi_io, offset+12, (U8)((sector_size>>24) & 0xFF));
sati_set_data_byte(sequence,scsi_io, offset+13, (U8)((sector_size>>16) & 0xFF));
sati_set_data_byte(sequence,scsi_io, offset+14, (U8)((sector_size>>8) & 0xFF));
sati_set_data_byte(sequence,scsi_io, offset+15, (U8)(sector_size & 0xFF));
return SCSI_MODE_SENSE_LLBA_BLOCK_DESCRIPTOR_LENGTH;
}
/**
* @brief This method will translate the ATA Identify Device data into
* SCSI read capacity 16 data.
* For more information on the parameters passed to this method,
* please reference sati_translate_data().
*
* @return none
*/
void sati_read_capacity_16_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * ata_input_data,
void * scsi_io
)
{
U32 lba_low = 0;
U32 lba_high = 0;
U32 sector_size = 0;
ATA_IDENTIFY_DEVICE_DATA_T * identify_device_data;
U16 physical_per_logical_enable_bit = 0;
U8 physical_per_logical_sector_exponent = 0;
U16 physical_per_logical_sector = 0;
U16 logical_sector_alignment = 0;
U16 scsi_logical_sector_alignment = 0;
U8 byte14 = 0;
//A number of data fields need to be extracted from ATA identify device data
identify_device_data = (ATA_IDENTIFY_DEVICE_DATA_T*)ata_input_data;
// Extract the sector information (sector size, logical blocks) from
// the retrieved ATA identify device data.
sati_ata_identify_device_get_sector_info(
(ATA_IDENTIFY_DEVICE_DATA_T*)ata_input_data,
&lba_high,
&lba_low,
§or_size
);
// SATA drives report a value that is one LBA larger than the last LBA.
// SCSI wants the last LBA. Make the correction here. lba_low is
// always decremented since it is an unsigned long the value 0 will
// wrap to 0xFFFFFFFF.
if ((lba_low == 0) && (lba_high == 0))
lba_high -= 1;
lba_low -= 1;
// Build the CDB for Read Capacity 16
// Fill in the Logical Block Address bytes.
sati_set_data_byte(sequence, scsi_io, 0, (U8)((lba_high >> 24) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 1, (U8)((lba_high >> 16) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 2, (U8)((lba_high >> 8) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 3, (U8)(lba_high & 0xFF));
sati_set_data_byte(sequence, scsi_io, 4, (U8)((lba_low >> 24) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 5, (U8)((lba_low >> 16) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 6, (U8)((lba_low >> 8) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 7, (U8)(lba_low & 0xFF));
//Fill in the sector size field.
sati_set_data_byte(sequence, scsi_io, 8, (U8)((sector_size >> 24) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 9, (U8)((sector_size >> 16) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 10, (U8)((sector_size >> 8) & 0xFF));
sati_set_data_byte(sequence, scsi_io, 11, (U8)(sector_size & 0xFF));
//Explicitly set byte 12 to 0. SATI requires that all bytes in the data
//response be explicitly set to some value.
sati_set_data_byte(sequence, scsi_io, 12, 0);
//Check Bit 13 of ATA_IDENTIFY_DEVICE_DATA physical_logical_sector_info
//(Word 106) is enabled
physical_per_logical_enable_bit = (identify_device_data->physical_logical_sector_info
& ATA_IDENTIFY_LOGICAL_SECTOR_PER_PHYSICAL_SECTOR_ENABLE);
//Extract the Physical per logical sector exponent field and calculate
//Physical per logical sector value
physical_per_logical_sector_exponent = (U8) (identify_device_data->physical_logical_sector_info
& ATA_IDENTIFY_LOGICAL_SECTOR_PER_PHYSICAL_SECTOR_MASK);
physical_per_logical_sector = 1 << (physical_per_logical_sector_exponent);
//If the data is valid, fill in the logical blocks per physical block exponent field.
//Else set logical blocks per physical block exponent to 1
if (physical_per_logical_enable_bit != 0)
sati_set_data_byte(
sequence,
scsi_io,
13,
(U8)(physical_per_logical_sector_exponent & 0xFF)
);
else
sati_set_data_byte(sequence, scsi_io, 13, 0);
//Fill in the lowest aligned logical block address field.
logical_sector_alignment = identify_device_data->logical_sector_alignment;
if (logical_sector_alignment == 0)
scsi_logical_sector_alignment = 0;
else
scsi_logical_sector_alignment = (physical_per_logical_sector - logical_sector_alignment)
% physical_per_logical_sector;
//Follow SAT for reporting tprz and tpe
if ((sequence->device->capabilities & SATI_DEVICE_CAP_DSM_TRIM_SUPPORT) &&
(sequence->device->capabilities & SATI_DEVICE_CAP_DETERMINISTIC_READ_AFTER_TRIM))
{
// tpe
byte14 |= 0x80;
// tprz
if (sequence->device->capabilities & SATI_DEVICE_CAP_READ_ZERO_AFTER_TRIM)
byte14 |= 0x40;
}
sati_set_data_byte(
sequence,
scsi_io,
14,
(U8)(((scsi_logical_sector_alignment >>8) & 0x3F) | byte14));
sati_set_data_byte(
sequence,
scsi_io,
15,
(U8)(scsi_logical_sector_alignment & 0xFF));
}
