- Permission to use, copy, modify, distribute, and sell this
+ Permission to use, copy, modify, distribute, and sell this
- permission notice and warranty disclaimer appear in supporting
- documentation, and that the name of the author not be used in
- advertising or publicity pertaining to distribution of the
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software without specific, written prior permission.
The author disclaim all warranties with regard to this
* devices use a thin "Bulk-Only Transport" protocol for issuing commands and status information,
* which wrap around standard SCSI device commands for controlling the actual storage medium.
*/
* devices use a thin "Bulk-Only Transport" protocol for issuing commands and status information,
* which wrap around standard SCSI device commands for controlling the actual storage medium.
*/
/** Structure to hold the SCSI response data to a SCSI INQUIRY command. This gives information about the device's
* features and capabilities.
*/
/** Structure to hold the SCSI response data to a SCSI INQUIRY command. This gives information about the device's
* features and capabilities.
*/
{
.DeviceType = DEVICE_TYPE_BLOCK,
.PeripheralQualifier = 0,
{
.DeviceType = DEVICE_TYPE_BLOCK,
.PeripheralQualifier = 0,
.VendorID = "LUFA",
.ProductID = "Dataflash Disk",
.RevisionID = {'0','.','0','0'},
.VendorID = "LUFA",
.ProductID = "Dataflash Disk",
.RevisionID = {'0','.','0','0'},
break;
case SCSI_CMD_REQUEST_SENSE:
CommandSuccess = SCSI_Command_Request_Sense(MSInterfaceInfo);
break;
case SCSI_CMD_READ_CAPACITY_10:
break;
case SCSI_CMD_REQUEST_SENSE:
CommandSuccess = SCSI_Command_Request_Sense(MSInterfaceInfo);
break;
case SCSI_CMD_READ_CAPACITY_10:
SCSI_SET_SENSE(SCSI_SENSE_KEY_GOOD,
SCSI_ASENSE_NO_ADDITIONAL_INFORMATION,
SCSI_ASENSEQ_NO_QUALIFIER);
SCSI_SET_SENSE(SCSI_SENSE_KEY_GOOD,
SCSI_ASENSE_NO_ADDITIONAL_INFORMATION,
SCSI_ASENSEQ_NO_QUALIFIER);
Endpoint_Write_Stream_LE(&InquiryData, BytesTransferred, NO_STREAM_CALLBACK);
uint8_t PadBytes[AllocationLength - BytesTransferred];
Endpoint_Write_Stream_LE(&InquiryData, BytesTransferred, NO_STREAM_CALLBACK);
uint8_t PadBytes[AllocationLength - BytesTransferred];
/* Pad out remaining bytes with 0x00 */
Endpoint_Write_Stream_LE(&PadBytes, sizeof(PadBytes), NO_STREAM_CALLBACK);
/* Pad out remaining bytes with 0x00 */
Endpoint_Write_Stream_LE(&PadBytes, sizeof(PadBytes), NO_STREAM_CALLBACK);
/* Succeed the command and update the bytes transferred counter */
MSInterfaceInfo->State.CommandBlock.DataTransferLength -= BytesTransferred;
/* Succeed the command and update the bytes transferred counter */
MSInterfaceInfo->State.CommandBlock.DataTransferLength -= BytesTransferred;
{
uint8_t AllocationLength = MSInterfaceInfo->State.CommandBlock.SCSICommandData[4];
uint8_t BytesTransferred = (AllocationLength < sizeof(SenseData))? AllocationLength : sizeof(SenseData);
{
uint8_t AllocationLength = MSInterfaceInfo->State.CommandBlock.SCSICommandData[4];
uint8_t BytesTransferred = (AllocationLength < sizeof(SenseData))? AllocationLength : sizeof(SenseData);
uint8_t PadBytes[AllocationLength - BytesTransferred];
Endpoint_Write_Stream_LE(&SenseData, BytesTransferred, NO_STREAM_CALLBACK);
uint8_t PadBytes[AllocationLength - BytesTransferred];
Endpoint_Write_Stream_LE(&SenseData, BytesTransferred, NO_STREAM_CALLBACK);
Endpoint_Write_Stream_BE(&LastBlockAddressInLUN, sizeof(LastBlockAddressInLUN), NO_STREAM_CALLBACK);
Endpoint_Write_Stream_BE(&MediaBlockSize, sizeof(MediaBlockSize), NO_STREAM_CALLBACK);
Endpoint_ClearIN();
Endpoint_Write_Stream_BE(&LastBlockAddressInLUN, sizeof(LastBlockAddressInLUN), NO_STREAM_CALLBACK);
Endpoint_Write_Stream_BE(&MediaBlockSize, sizeof(MediaBlockSize), NO_STREAM_CALLBACK);
Endpoint_ClearIN();
/* Succeed the command and update the bytes transferred counter */
MSInterfaceInfo->State.CommandBlock.DataTransferLength -= 8;
/* Succeed the command and update the bytes transferred counter */
MSInterfaceInfo->State.CommandBlock.DataTransferLength -= 8;
/* Check to see if all attached Dataflash ICs are functional */
if (!(DataflashManager_CheckDataflashOperation()))
{
/* Update SENSE key with a hardware error condition and return command fail */
SCSI_SET_SENSE(SCSI_SENSE_KEY_HARDWARE_ERROR,
SCSI_ASENSE_NO_ADDITIONAL_INFORMATION,
/* Check to see if all attached Dataflash ICs are functional */
if (!(DataflashManager_CheckDataflashOperation()))
{
/* Update SENSE key with a hardware error condition and return command fail */
SCSI_SET_SENSE(SCSI_SENSE_KEY_HARDWARE_ERROR,
SCSI_ASENSE_NO_ADDITIONAL_INFORMATION,
/* Succeed the command and update the bytes transferred counter */
MSInterfaceInfo->State.CommandBlock.DataTransferLength = 0;
/* Succeed the command and update the bytes transferred counter */
MSInterfaceInfo->State.CommandBlock.DataTransferLength = 0;
/* Load in the 32-bit block address (SCSI uses big-endian, so have to reverse the byte order) */
BlockAddress = SwapEndian_32(*(uint32_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[2]);
/* Load in the 16-bit total blocks (SCSI uses big-endian, so have to reverse the byte order) */
TotalBlocks = SwapEndian_16(*(uint16_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[7]);
/* Load in the 32-bit block address (SCSI uses big-endian, so have to reverse the byte order) */
BlockAddress = SwapEndian_32(*(uint32_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[2]);
/* Load in the 16-bit total blocks (SCSI uses big-endian, so have to reverse the byte order) */
TotalBlocks = SwapEndian_16(*(uint16_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[7]);
/* Check if the block address is outside the maximum allowable value for the LUN */
if (BlockAddress >= VIRTUAL_MEMORY_BLOCKS)
{
/* Check if the block address is outside the maximum allowable value for the LUN */
if (BlockAddress >= VIRTUAL_MEMORY_BLOCKS)
{
/* Determine if the packet is a READ (10) or WRITE (10) command, call appropriate function */
if (IsDataRead == DATA_READ)
DataflashManager_ReadBlocks(MSInterfaceInfo, BlockAddress, TotalBlocks);
/* Determine if the packet is a READ (10) or WRITE (10) command, call appropriate function */
if (IsDataRead == DATA_READ)
DataflashManager_ReadBlocks(MSInterfaceInfo, BlockAddress, TotalBlocks);
/* Update the bytes transferred counter and succeed the command */
MSInterfaceInfo->State.CommandBlock.DataTransferLength -= ((uint32_t)TotalBlocks * VIRTUAL_MEMORY_BLOCK_SIZE);
/* Update the bytes transferred counter and succeed the command */
MSInterfaceInfo->State.CommandBlock.DataTransferLength -= ((uint32_t)TotalBlocks * VIRTUAL_MEMORY_BLOCK_SIZE);