diff options
Diffstat (limited to 'Demos/Host/LowLevel/MassStorageHost/Lib')
3 files changed, 995 insertions, 995 deletions
diff --git a/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c b/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c index be92d69c1..129c50af8 100644 --- a/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c +++ b/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c @@ -1,701 +1,701 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2010.
-
- dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
-*/
-
-/*
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
- Permission to use, copy, modify, distribute, and sell this
- software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
- all copies and that both that the copyright notice and 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
- software without specific, written prior permission.
-
- The author disclaim all warranties with regard to this
- software, including all implied warranties of merchantability
- and fitness. In no event shall the author be liable for any
- special, indirect or consequential damages or any damages
- whatsoever resulting from loss of use, data or profits, whether
- in an action of contract, negligence or other tortious action,
- arising out of or in connection with the use or performance of
- this software.
-*/
-
-/** \file
- *
- * Mass Storage Device commands, to issue MSD commands to the device for
- * reading device status, capacity, and other characteristics. This file
- * also contains block read and write functions, so that device blocks
- * can be read and written. In general, these functions would be chained
- * to a FAT library to give file-level access to an attached device's contents.
- *
- * \note Many Mass Storage devices on the market are non-compliant to the
- * specifications and thus can prove difficult to interface with. It
- * may be necessary to retry the functions in the module several times
- * after they have returned and error to successfully send the command
- * to the device. Some devices may also need to have the stream function
- * timeout period extended beyond 100ms (some badly designed devices exceeding
- * 1.5 seconds occasionally) by defining USB_STREAM_TIMEOUT_MS to a
- * larger value in the project makefile and passing it to the compiler
- * via the -D switch.
- */
-
-#define INCLUDE_FROM_MASSSTORE_COMMANDS_C
-#include "MassStoreCommands.h"
-
-/** Current Tag value used in issued CBWs to the device. This is automatically incremented
- * each time a command is sent, and is not externally accessible.
- */
-static uint32_t MassStore_Tag = 1;
-
-
-/** Routine to send the current CBW to the device, and increment the Tag value as needed.
- *
- * \param[in] SCSICommandBlock Pointer to a SCSI command block structure to send to the attached device
- * \param[in,out] BufferPtr Pointer to a buffer for the data to send or receive to/from the device, or NULL if no data
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum
- */
-static uint8_t MassStore_SendCommand(CommandBlockWrapper_t* SCSICommandBlock, void* BufferPtr)
-{
- uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
-
- /* Each transmission should have a unique tag value, increment before use */
- SCSICommandBlock->Tag = ++MassStore_Tag;
-
- /* Wrap Tag value when invalid - MS class defines tag values of 0 and 0xFFFFFFFF to be invalid */
- if (MassStore_Tag == 0xFFFFFFFF)
- MassStore_Tag = 1;
-
- /* Select the OUT data pipe for CBW transmission */
- Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE);
- Pipe_Unfreeze();
-
- /* Write the CBW command to the OUT pipe */
- if ((ErrorCode = Pipe_Write_Stream_LE(SCSICommandBlock, sizeof(CommandBlockWrapper_t))) != PIPE_RWSTREAM_NoError)
- return ErrorCode;
-
- /* Send the data in the OUT pipe to the attached device */
- Pipe_ClearOUT();
-
- /* Wait until command has been sent */
- Pipe_WaitUntilReady();
-
- /* Freeze pipe after use */
- Pipe_Freeze();
-
- /* Send data if any */
- if ((BufferPtr != NULL) &&
- ((ErrorCode = MassStore_SendReceiveData(SCSICommandBlock, BufferPtr)) != PIPE_READYWAIT_NoError))
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- return ErrorCode;
-}
-
-/** Waits until the attached device is ready to accept data following a CBW, checking
- * to ensure that the device has not stalled the transaction.
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum
- */
-static uint8_t MassStore_WaitForDataReceived(void)
-{
- uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS;
-
- /* Select the IN data pipe for data reception */
- Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
- Pipe_Unfreeze();
-
- /* Wait until data received in the IN pipe */
- while (!(Pipe_IsINReceived()))
- {
- /* Check to see if a new frame has been issued (1ms elapsed) */
- if (USB_INT_HasOccurred(USB_INT_HSOFI))
- {
- /* Clear the flag and decrement the timeout period counter */
- USB_INT_Clear(USB_INT_HSOFI);
- TimeoutMSRem--;
-
- /* Check to see if the timeout period for the command has elapsed */
- if (!(TimeoutMSRem))
- return PIPE_RWSTREAM_Timeout;
- }
-
- Pipe_Freeze();
- Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE);
- Pipe_Unfreeze();
-
- /* Check if pipe stalled (command failed by device) */
- if (Pipe_IsStalled())
- {
- /* Clear the stall condition on the OUT pipe */
- USB_Host_ClearPipeStall(MASS_STORE_DATA_OUT_PIPE);
-
- return PIPE_RWSTREAM_PipeStalled;
- }
-
- Pipe_Freeze();
- Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
- Pipe_Unfreeze();
-
- /* Check if pipe stalled (command failed by device) */
- if (Pipe_IsStalled())
- {
- /* Clear the stall condition on the IN pipe */
- USB_Host_ClearPipeStall(MASS_STORE_DATA_IN_PIPE);
-
- return PIPE_RWSTREAM_PipeStalled;
- }
-
- /* Check to see if the device was disconnected, if so exit function */
- if (USB_HostState == HOST_STATE_Unattached)
- return PIPE_RWSTREAM_DeviceDisconnected;
- };
-
- Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
- Pipe_Freeze();
-
- Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE);
- Pipe_Freeze();
-
- return PIPE_RWSTREAM_NoError;
-}
-
-/** Sends or receives the transaction's data stage to or from the attached device, reading or
- * writing to the nominated buffer.
- *
- * \param[in] SCSICommandBlock Pointer to a SCSI command block structure being sent to the attached device
- * \param[in,out] BufferPtr Pointer to the data buffer to read from or write to
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum
- */
-static uint8_t MassStore_SendReceiveData(CommandBlockWrapper_t* SCSICommandBlock, void* BufferPtr)
-{
- uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
- uint16_t BytesRem = SCSICommandBlock->DataTransferLength;
-
- /* Check the direction of the SCSI command data stage */
- if (SCSICommandBlock->Flags & COMMAND_DIRECTION_DATA_IN)
- {
- /* Wait until the device has replied with some data */
- if ((ErrorCode = MassStore_WaitForDataReceived()) != PIPE_RWSTREAM_NoError)
- return ErrorCode;
-
- /* Select the IN data pipe for data reception */
- Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
- Pipe_Unfreeze();
-
- /* Read in the block data from the pipe */
- if ((ErrorCode = Pipe_Read_Stream_LE(BufferPtr, BytesRem)) != PIPE_RWSTREAM_NoError)
- return ErrorCode;
-
- /* Acknowledge the packet */
- Pipe_ClearIN();
- }
- else
- {
- /* Select the OUT data pipe for data transmission */
- Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE);
- Pipe_Unfreeze();
-
- /* Write the block data to the pipe */
- if ((ErrorCode = Pipe_Write_Stream_LE(BufferPtr, BytesRem)) != PIPE_RWSTREAM_NoError)
- return ErrorCode;
-
- /* Acknowledge the packet */
- Pipe_ClearOUT();
-
- while (!(Pipe_IsOUTReady()))
- {
- if (USB_HostState == HOST_STATE_Unattached)
- return PIPE_RWSTREAM_DeviceDisconnected;
- }
- }
-
- /* Freeze used pipe after use */
- Pipe_Freeze();
-
- return PIPE_RWSTREAM_NoError;
-}
-
-/** Routine to receive the current CSW from the device.
- *
- * \param[out] SCSICommandStatus Pointer to a destination where the returned status data should be stored
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails
- */
-static uint8_t MassStore_GetReturnedStatus(CommandStatusWrapper_t* SCSICommandStatus)
-{
- uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
-
- /* If an error in the command occurred, abort */
- if ((ErrorCode = MassStore_WaitForDataReceived()) != PIPE_RWSTREAM_NoError)
- return ErrorCode;
-
- /* Select the IN data pipe for data reception */
- Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
- Pipe_Unfreeze();
-
- /* Load in the CSW from the attached device */
- if ((ErrorCode = Pipe_Read_Stream_LE(SCSICommandStatus, sizeof(CommandStatusWrapper_t))) != PIPE_RWSTREAM_NoError)
- return ErrorCode;
-
- /* Clear the data ready for next reception */
- Pipe_ClearIN();
-
- /* Freeze the IN pipe after use */
- Pipe_Freeze();
-
- /* Check to see if command failed */
- if (SCSICommandStatus->Status != Command_Pass)
- ErrorCode = MASS_STORE_SCSI_COMMAND_FAILED;
-
- return ErrorCode;
-}
-
-/** Issues a Mass Storage class specific request to reset the attached device's Mass Storage interface,
- * readying the device for the next CBW.
- *
- * \return A value from the USB_Host_SendControlErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails
- */
-uint8_t MassStore_MassStorageReset(void)
-{
- USB_ControlRequest = (USB_Request_Header_t)
- {
- .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
- .bRequest = REQ_MassStorageReset,
- .wValue = 0,
- .wIndex = 0,
- .wLength = 0,
- };
-
- /* Select the control pipe for the request transfer */
- Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
- return USB_Host_SendControlRequest(NULL);
-}
-
-/** Issues a Mass Storage class specific request to determine the index of the highest numbered Logical
- * Unit in the attached device.
- *
- * \note Some devices do not support this request, and will STALL it when issued. To get around this,
- * on unsupported devices the max LUN index will be reported as zero and no error will be returned
- * if the device STALLs the request.
- *
- * \param[out] MaxLUNIndex Pointer to the location that the maximum LUN index value should be stored
- *
- * \return A value from the USB_Host_SendControlErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails
- */
-uint8_t MassStore_GetMaxLUN(uint8_t* const MaxLUNIndex)
-{
- uint8_t ErrorCode = HOST_SENDCONTROL_Successful;
-
- USB_ControlRequest = (USB_Request_Header_t)
- {
- .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
- .bRequest = REQ_GetMaxLUN,
- .wValue = 0,
- .wIndex = 0,
- .wLength = 1,
- };
-
- /* Select the control pipe for the request transfer */
- Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
- if ((ErrorCode = USB_Host_SendControlRequest(MaxLUNIndex)) == HOST_SENDCONTROL_SetupStalled)
- {
- /* Clear the pipe stall */
- Pipe_ClearStall();
-
- /* Some faulty Mass Storage devices don't implement the GET_MAX_LUN request, so assume a single LUN */
- *MaxLUNIndex = 0;
-
- /* Clear the error, and pretend the request executed correctly if the device STALLed it */
- ErrorCode = HOST_SENDCONTROL_Successful;
- }
-
- return ErrorCode;
-}
-
-/** Issues a SCSI Inquiry command to the attached device, to determine the device's information. This
- * gives information on the device's capabilities.
- *
- * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to
- * \param[out] InquiryPtr Pointer to the inquiry data structure where the inquiry data from the device is to be stored
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails
- */
-uint8_t MassStore_Inquiry(const uint8_t LUNIndex, SCSI_Inquiry_Response_t* const InquiryPtr)
-{
- uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
-
- /* Create a CBW with a SCSI command to issue INQUIRY command */
- CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t)
- {
- .Signature = CBW_SIGNATURE,
- .DataTransferLength = sizeof(SCSI_Inquiry_Response_t),
- .Flags = COMMAND_DIRECTION_DATA_IN,
- .LUN = LUNIndex,
- .SCSICommandLength = 6,
- .SCSICommandData =
- {
- SCSI_CMD_INQUIRY,
- 0x00, // Reserved
- 0x00, // Reserved
- 0x00, // Reserved
- sizeof(SCSI_Inquiry_Response_t), // Allocation Length
- 0x00 // Unused (control)
- }
- };
-
- CommandStatusWrapper_t SCSICommandStatus;
-
- /* Send the command and any data to the attached device */
- if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, InquiryPtr)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- /* Retrieve status information from the attached device */
- if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- return ErrorCode;
-}
-
-/** Issues a SCSI Request Sense command to the attached device, to determine the current SCSI sense information. This
- * gives error codes for the last issued SCSI command to the device.
- *
- * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to
- * \param[out] SensePtr Pointer to the sense data structure where the sense data from the device is to be stored
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails
- */
-uint8_t MassStore_RequestSense(const uint8_t LUNIndex, SCSI_Request_Sense_Response_t* const SensePtr)
-{
- uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
-
- /* Create a CBW with a SCSI command to issue REQUEST SENSE command */
- CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t)
- {
- .Signature = CBW_SIGNATURE,
- .DataTransferLength = sizeof(SCSI_Request_Sense_Response_t),
- .Flags = COMMAND_DIRECTION_DATA_IN,
- .LUN = LUNIndex,
- .SCSICommandLength = 6,
- .SCSICommandData =
- {
- SCSI_CMD_REQUEST_SENSE,
- 0x00, // Reserved
- 0x00, // Reserved
- 0x00, // Reserved
- sizeof(SCSI_Request_Sense_Response_t), // Allocation Length
- 0x00 // Unused (control)
- }
- };
-
- CommandStatusWrapper_t SCSICommandStatus;
-
- /* Send the command and any data to the attached device */
- if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, SensePtr)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- /* Retrieve status information from the attached device */
- if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- return ErrorCode;
-}
-
-/** Issues a SCSI Device Block Read command to the attached device, to read in one or more data blocks from the
- * storage medium into a buffer.
- *
- * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to
- * \param[in] BlockAddress Start block address to read from
- * \param[in] Blocks Number of blocks to read from the device
- * \param[in] BlockSize Size in bytes of each block to read
- * \param[out] BufferPtr Pointer to the buffer where the read data is to be written to
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails
- */
-uint8_t MassStore_ReadDeviceBlock(const uint8_t LUNIndex, const uint32_t BlockAddress,
- const uint8_t Blocks, const uint16_t BlockSize, void* BufferPtr)
-{
- uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
-
- /* Create a CBW with a SCSI command to read in the given blocks from the device */
- CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t)
- {
- .Signature = CBW_SIGNATURE,
- .DataTransferLength = ((uint32_t)Blocks * BlockSize),
- .Flags = COMMAND_DIRECTION_DATA_IN,
- .LUN = LUNIndex,
- .SCSICommandLength = 10,
- .SCSICommandData =
- {
- SCSI_CMD_READ_10,
- 0x00, // Unused (control bits, all off)
- (BlockAddress >> 24), // MSB of Block Address
- (BlockAddress >> 16),
- (BlockAddress >> 8),
- (BlockAddress & 0xFF), // LSB of Block Address
- 0x00, // Unused (reserved)
- 0x00, // MSB of Total Blocks to Read
- Blocks, // LSB of Total Blocks to Read
- 0x00 // Unused (control)
- }
- };
-
- CommandStatusWrapper_t SCSICommandStatus;
-
- /* Send the command and any data to the attached device */
- if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, BufferPtr)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- /* Retrieve status information from the attached device */
- if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- return ErrorCode;
-}
-
-/** Issues a SCSI Device Block Write command to the attached device, to write one or more data blocks to the
- * storage medium from a buffer.
- *
- * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to
- * \param[in] BlockAddress Start block address to write to
- * \param[in] Blocks Number of blocks to write to in the device
- * \param[in] BlockSize Size in bytes of each block to write
- * \param[in] BufferPtr Pointer to the buffer where the write data is to be sourced from
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails
- */
-uint8_t MassStore_WriteDeviceBlock(const uint8_t LUNIndex, const uint32_t BlockAddress,
- const uint8_t Blocks, const uint16_t BlockSize, void* BufferPtr)
-{
- uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
-
- /* Create a CBW with a SCSI command to write the given blocks to the device */
- CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t)
- {
- .Signature = CBW_SIGNATURE,
- .DataTransferLength = ((uint32_t)Blocks * BlockSize),
- .Flags = COMMAND_DIRECTION_DATA_OUT,
- .LUN = LUNIndex,
- .SCSICommandLength = 10,
- .SCSICommandData =
- {
- SCSI_CMD_WRITE_10,
- 0x00, // Unused (control bits, all off)
- (BlockAddress >> 24), // MSB of Block Address
- (BlockAddress >> 16),
- (BlockAddress >> 8),
- (BlockAddress & 0xFF), // LSB of Block Address
- 0x00, // Unused (reserved)
- 0x00, // MSB of Total Blocks to Write
- Blocks, // LSB of Total Blocks to Write
- 0x00 // Unused (control)
- }
- };
-
- CommandStatusWrapper_t SCSICommandStatus;
-
- /* Send the command and any data to the attached device */
- if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, BufferPtr)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- /* Retrieve status information from the attached device */
- if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- return ErrorCode;
-}
-
-/** Issues a SCSI Device Test Unit Ready command to the attached device, to determine if the device is ready to accept
- * other commands.
- *
- * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails
- */
-uint8_t MassStore_TestUnitReady(const uint8_t LUNIndex)
-{
- uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
-
- /* Create a CBW with a SCSI command to issue TEST UNIT READY command */
- CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t)
- {
- .Signature = CBW_SIGNATURE,
- .DataTransferLength = 0,
- .Flags = COMMAND_DIRECTION_DATA_IN,
- .LUN = LUNIndex,
- .SCSICommandLength = 6,
- .SCSICommandData =
- {
- SCSI_CMD_TEST_UNIT_READY,
- 0x00, // Reserved
- 0x00, // Reserved
- 0x00, // Reserved
- 0x00, // Reserved
- 0x00 // Unused (control)
- }
- };
-
- CommandStatusWrapper_t SCSICommandStatus;
-
- /* Send the command and any data to the attached device */
- if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, NULL)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- /* Retrieve status information from the attached device */
- if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- return ErrorCode;
-}
-
-/** Issues a SCSI Device Read Capacity command to the attached device, to determine the capacity of the
- * given Logical Unit within the device.
- *
- * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to
- * \param[out] CapacityPtr Device capacity structure where the capacity data is to be stored
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails
- */
-uint8_t MassStore_ReadCapacity(const uint8_t LUNIndex, SCSI_Capacity_t* const CapacityPtr)
-{
- uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
-
- /* Create a CBW with a SCSI command to issue READ CAPACITY command */
- CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t)
- {
- .Signature = CBW_SIGNATURE,
- .DataTransferLength = sizeof(SCSI_Capacity_t),
- .Flags = COMMAND_DIRECTION_DATA_IN,
- .LUN = LUNIndex,
- .SCSICommandLength = 10,
- .SCSICommandData =
- {
- SCSI_CMD_READ_CAPACITY_10,
- 0x00, // Reserved
- 0x00, // MSB of Logical block address
- 0x00,
- 0x00,
- 0x00, // LSB of Logical block address
- 0x00, // Reserved
- 0x00, // Reserved
- 0x00, // Partial Medium Indicator
- 0x00 // Unused (control)
- }
- };
-
- CommandStatusWrapper_t SCSICommandStatus;
-
- /* Send the command and any data to the attached device */
- if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, CapacityPtr)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- /* Endian-correct the read data */
- CapacityPtr->Blocks = SwapEndian_32(CapacityPtr->Blocks);
- CapacityPtr->BlockSize = SwapEndian_32(CapacityPtr->BlockSize);
-
- /* Retrieve status information from the attached device */
- if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- return ErrorCode;
-}
-
-/** Issues a SCSI Device Prevent/Allow Medium Removal command to the attached device, to lock the physical media from
- * being removed. This is a legacy command for SCSI disks with removable storage (such as ZIP disks), but should still
- * be issued before the first read or write command is sent.
- *
- * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to
- * \param[in] PreventRemoval Whether or not the LUN media should be locked to prevent removal or not
- *
- * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails
- */
-uint8_t MassStore_PreventAllowMediumRemoval(const uint8_t LUNIndex, const bool PreventRemoval)
-{
- uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
-
- /* Create a CBW with a SCSI command to issue PREVENT ALLOW MEDIUM REMOVAL command */
- CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t)
- {
- .Signature = CBW_SIGNATURE,
- .DataTransferLength = 0,
- .Flags = COMMAND_DIRECTION_DATA_OUT,
- .LUN = LUNIndex,
- .SCSICommandLength = 6,
- .SCSICommandData =
- {
- SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL,
- 0x00, // Reserved
- 0x00, // Reserved
- PreventRemoval, // Prevent flag
- 0x00, // Reserved
- 0x00 // Unused (control)
- }
- };
-
- CommandStatusWrapper_t SCSICommandStatus;
-
- /* Send the command and any data to the attached device */
- if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, NULL)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- /* Retrieve status information from the attached device */
- if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
- {
- Pipe_Freeze();
- return ErrorCode;
- }
-
- return ErrorCode;
-}
+/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and 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 + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Mass Storage Device commands, to issue MSD commands to the device for + * reading device status, capacity, and other characteristics. This file + * also contains block read and write functions, so that device blocks + * can be read and written. In general, these functions would be chained + * to a FAT library to give file-level access to an attached device's contents. + * + * \note Many Mass Storage devices on the market are non-compliant to the + * specifications and thus can prove difficult to interface with. It + * may be necessary to retry the functions in the module several times + * after they have returned and error to successfully send the command + * to the device. Some devices may also need to have the stream function + * timeout period extended beyond 100ms (some badly designed devices exceeding + * 1.5 seconds occasionally) by defining USB_STREAM_TIMEOUT_MS to a + * larger value in the project makefile and passing it to the compiler + * via the -D switch. + */ + +#define INCLUDE_FROM_MASSSTORE_COMMANDS_C +#include "MassStoreCommands.h" + +/** Current Tag value used in issued CBWs to the device. This is automatically incremented + * each time a command is sent, and is not externally accessible. + */ +static uint32_t MassStore_Tag = 1; + + +/** Routine to send the current CBW to the device, and increment the Tag value as needed. + * + * \param[in] SCSICommandBlock Pointer to a SCSI command block structure to send to the attached device + * \param[in,out] BufferPtr Pointer to a buffer for the data to send or receive to/from the device, or NULL if no data + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum + */ +static uint8_t MassStore_SendCommand(CommandBlockWrapper_t* SCSICommandBlock, void* BufferPtr) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + /* Each transmission should have a unique tag value, increment before use */ + SCSICommandBlock->Tag = ++MassStore_Tag; + + /* Wrap Tag value when invalid - MS class defines tag values of 0 and 0xFFFFFFFF to be invalid */ + if (MassStore_Tag == 0xFFFFFFFF) + MassStore_Tag = 1; + + /* Select the OUT data pipe for CBW transmission */ + Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE); + Pipe_Unfreeze(); + + /* Write the CBW command to the OUT pipe */ + if ((ErrorCode = Pipe_Write_Stream_LE(SCSICommandBlock, sizeof(CommandBlockWrapper_t))) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + /* Send the data in the OUT pipe to the attached device */ + Pipe_ClearOUT(); + + /* Wait until command has been sent */ + Pipe_WaitUntilReady(); + + /* Freeze pipe after use */ + Pipe_Freeze(); + + /* Send data if any */ + if ((BufferPtr != NULL) && + ((ErrorCode = MassStore_SendReceiveData(SCSICommandBlock, BufferPtr)) != PIPE_READYWAIT_NoError)) + { + Pipe_Freeze(); + return ErrorCode; + } + + return ErrorCode; +} + +/** Waits until the attached device is ready to accept data following a CBW, checking + * to ensure that the device has not stalled the transaction. + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum + */ +static uint8_t MassStore_WaitForDataReceived(void) +{ + uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS; + + /* Select the IN data pipe for data reception */ + Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE); + Pipe_Unfreeze(); + + /* Wait until data received in the IN pipe */ + while (!(Pipe_IsINReceived())) + { + /* Check to see if a new frame has been issued (1ms elapsed) */ + if (USB_INT_HasOccurred(USB_INT_HSOFI)) + { + /* Clear the flag and decrement the timeout period counter */ + USB_INT_Clear(USB_INT_HSOFI); + TimeoutMSRem--; + + /* Check to see if the timeout period for the command has elapsed */ + if (!(TimeoutMSRem)) + return PIPE_RWSTREAM_Timeout; + } + + Pipe_Freeze(); + Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE); + Pipe_Unfreeze(); + + /* Check if pipe stalled (command failed by device) */ + if (Pipe_IsStalled()) + { + /* Clear the stall condition on the OUT pipe */ + USB_Host_ClearPipeStall(MASS_STORE_DATA_OUT_PIPE); + + return PIPE_RWSTREAM_PipeStalled; + } + + Pipe_Freeze(); + Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE); + Pipe_Unfreeze(); + + /* Check if pipe stalled (command failed by device) */ + if (Pipe_IsStalled()) + { + /* Clear the stall condition on the IN pipe */ + USB_Host_ClearPipeStall(MASS_STORE_DATA_IN_PIPE); + + return PIPE_RWSTREAM_PipeStalled; + } + + /* Check to see if the device was disconnected, if so exit function */ + if (USB_HostState == HOST_STATE_Unattached) + return PIPE_RWSTREAM_DeviceDisconnected; + }; + + Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE); + Pipe_Freeze(); + + Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE); + Pipe_Freeze(); + + return PIPE_RWSTREAM_NoError; +} + +/** Sends or receives the transaction's data stage to or from the attached device, reading or + * writing to the nominated buffer. + * + * \param[in] SCSICommandBlock Pointer to a SCSI command block structure being sent to the attached device + * \param[in,out] BufferPtr Pointer to the data buffer to read from or write to + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum + */ +static uint8_t MassStore_SendReceiveData(CommandBlockWrapper_t* SCSICommandBlock, void* BufferPtr) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + uint16_t BytesRem = SCSICommandBlock->DataTransferLength; + + /* Check the direction of the SCSI command data stage */ + if (SCSICommandBlock->Flags & COMMAND_DIRECTION_DATA_IN) + { + /* Wait until the device has replied with some data */ + if ((ErrorCode = MassStore_WaitForDataReceived()) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + /* Select the IN data pipe for data reception */ + Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE); + Pipe_Unfreeze(); + + /* Read in the block data from the pipe */ + if ((ErrorCode = Pipe_Read_Stream_LE(BufferPtr, BytesRem)) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + /* Acknowledge the packet */ + Pipe_ClearIN(); + } + else + { + /* Select the OUT data pipe for data transmission */ + Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE); + Pipe_Unfreeze(); + + /* Write the block data to the pipe */ + if ((ErrorCode = Pipe_Write_Stream_LE(BufferPtr, BytesRem)) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + /* Acknowledge the packet */ + Pipe_ClearOUT(); + + while (!(Pipe_IsOUTReady())) + { + if (USB_HostState == HOST_STATE_Unattached) + return PIPE_RWSTREAM_DeviceDisconnected; + } + } + + /* Freeze used pipe after use */ + Pipe_Freeze(); + + return PIPE_RWSTREAM_NoError; +} + +/** Routine to receive the current CSW from the device. + * + * \param[out] SCSICommandStatus Pointer to a destination where the returned status data should be stored + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails + */ +static uint8_t MassStore_GetReturnedStatus(CommandStatusWrapper_t* SCSICommandStatus) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + /* If an error in the command occurred, abort */ + if ((ErrorCode = MassStore_WaitForDataReceived()) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + /* Select the IN data pipe for data reception */ + Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE); + Pipe_Unfreeze(); + + /* Load in the CSW from the attached device */ + if ((ErrorCode = Pipe_Read_Stream_LE(SCSICommandStatus, sizeof(CommandStatusWrapper_t))) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + /* Clear the data ready for next reception */ + Pipe_ClearIN(); + + /* Freeze the IN pipe after use */ + Pipe_Freeze(); + + /* Check to see if command failed */ + if (SCSICommandStatus->Status != Command_Pass) + ErrorCode = MASS_STORE_SCSI_COMMAND_FAILED; + + return ErrorCode; +} + +/** Issues a Mass Storage class specific request to reset the attached device's Mass Storage interface, + * readying the device for the next CBW. + * + * \return A value from the USB_Host_SendControlErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails + */ +uint8_t MassStore_MassStorageReset(void) +{ + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = REQ_MassStorageReset, + .wValue = 0, + .wIndex = 0, + .wLength = 0, + }; + + /* Select the control pipe for the request transfer */ + Pipe_SelectPipe(PIPE_CONTROLPIPE); + + return USB_Host_SendControlRequest(NULL); +} + +/** Issues a Mass Storage class specific request to determine the index of the highest numbered Logical + * Unit in the attached device. + * + * \note Some devices do not support this request, and will STALL it when issued. To get around this, + * on unsupported devices the max LUN index will be reported as zero and no error will be returned + * if the device STALLs the request. + * + * \param[out] MaxLUNIndex Pointer to the location that the maximum LUN index value should be stored + * + * \return A value from the USB_Host_SendControlErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails + */ +uint8_t MassStore_GetMaxLUN(uint8_t* const MaxLUNIndex) +{ + uint8_t ErrorCode = HOST_SENDCONTROL_Successful; + + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = REQ_GetMaxLUN, + .wValue = 0, + .wIndex = 0, + .wLength = 1, + }; + + /* Select the control pipe for the request transfer */ + Pipe_SelectPipe(PIPE_CONTROLPIPE); + + if ((ErrorCode = USB_Host_SendControlRequest(MaxLUNIndex)) == HOST_SENDCONTROL_SetupStalled) + { + /* Clear the pipe stall */ + Pipe_ClearStall(); + + /* Some faulty Mass Storage devices don't implement the GET_MAX_LUN request, so assume a single LUN */ + *MaxLUNIndex = 0; + + /* Clear the error, and pretend the request executed correctly if the device STALLed it */ + ErrorCode = HOST_SENDCONTROL_Successful; + } + + return ErrorCode; +} + +/** Issues a SCSI Inquiry command to the attached device, to determine the device's information. This + * gives information on the device's capabilities. + * + * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to + * \param[out] InquiryPtr Pointer to the inquiry data structure where the inquiry data from the device is to be stored + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails + */ +uint8_t MassStore_Inquiry(const uint8_t LUNIndex, SCSI_Inquiry_Response_t* const InquiryPtr) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + /* Create a CBW with a SCSI command to issue INQUIRY command */ + CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t) + { + .Signature = CBW_SIGNATURE, + .DataTransferLength = sizeof(SCSI_Inquiry_Response_t), + .Flags = COMMAND_DIRECTION_DATA_IN, + .LUN = LUNIndex, + .SCSICommandLength = 6, + .SCSICommandData = + { + SCSI_CMD_INQUIRY, + 0x00, // Reserved + 0x00, // Reserved + 0x00, // Reserved + sizeof(SCSI_Inquiry_Response_t), // Allocation Length + 0x00 // Unused (control) + } + }; + + CommandStatusWrapper_t SCSICommandStatus; + + /* Send the command and any data to the attached device */ + if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, InquiryPtr)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + /* Retrieve status information from the attached device */ + if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + return ErrorCode; +} + +/** Issues a SCSI Request Sense command to the attached device, to determine the current SCSI sense information. This + * gives error codes for the last issued SCSI command to the device. + * + * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to + * \param[out] SensePtr Pointer to the sense data structure where the sense data from the device is to be stored + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails + */ +uint8_t MassStore_RequestSense(const uint8_t LUNIndex, SCSI_Request_Sense_Response_t* const SensePtr) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + /* Create a CBW with a SCSI command to issue REQUEST SENSE command */ + CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t) + { + .Signature = CBW_SIGNATURE, + .DataTransferLength = sizeof(SCSI_Request_Sense_Response_t), + .Flags = COMMAND_DIRECTION_DATA_IN, + .LUN = LUNIndex, + .SCSICommandLength = 6, + .SCSICommandData = + { + SCSI_CMD_REQUEST_SENSE, + 0x00, // Reserved + 0x00, // Reserved + 0x00, // Reserved + sizeof(SCSI_Request_Sense_Response_t), // Allocation Length + 0x00 // Unused (control) + } + }; + + CommandStatusWrapper_t SCSICommandStatus; + + /* Send the command and any data to the attached device */ + if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, SensePtr)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + /* Retrieve status information from the attached device */ + if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + return ErrorCode; +} + +/** Issues a SCSI Device Block Read command to the attached device, to read in one or more data blocks from the + * storage medium into a buffer. + * + * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to + * \param[in] BlockAddress Start block address to read from + * \param[in] Blocks Number of blocks to read from the device + * \param[in] BlockSize Size in bytes of each block to read + * \param[out] BufferPtr Pointer to the buffer where the read data is to be written to + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails + */ +uint8_t MassStore_ReadDeviceBlock(const uint8_t LUNIndex, const uint32_t BlockAddress, + const uint8_t Blocks, const uint16_t BlockSize, void* BufferPtr) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + /* Create a CBW with a SCSI command to read in the given blocks from the device */ + CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t) + { + .Signature = CBW_SIGNATURE, + .DataTransferLength = ((uint32_t)Blocks * BlockSize), + .Flags = COMMAND_DIRECTION_DATA_IN, + .LUN = LUNIndex, + .SCSICommandLength = 10, + .SCSICommandData = + { + SCSI_CMD_READ_10, + 0x00, // Unused (control bits, all off) + (BlockAddress >> 24), // MSB of Block Address + (BlockAddress >> 16), + (BlockAddress >> 8), + (BlockAddress & 0xFF), // LSB of Block Address + 0x00, // Unused (reserved) + 0x00, // MSB of Total Blocks to Read + Blocks, // LSB of Total Blocks to Read + 0x00 // Unused (control) + } + }; + + CommandStatusWrapper_t SCSICommandStatus; + + /* Send the command and any data to the attached device */ + if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, BufferPtr)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + /* Retrieve status information from the attached device */ + if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + return ErrorCode; +} + +/** Issues a SCSI Device Block Write command to the attached device, to write one or more data blocks to the + * storage medium from a buffer. + * + * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to + * \param[in] BlockAddress Start block address to write to + * \param[in] Blocks Number of blocks to write to in the device + * \param[in] BlockSize Size in bytes of each block to write + * \param[in] BufferPtr Pointer to the buffer where the write data is to be sourced from + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails + */ +uint8_t MassStore_WriteDeviceBlock(const uint8_t LUNIndex, const uint32_t BlockAddress, + const uint8_t Blocks, const uint16_t BlockSize, void* BufferPtr) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + /* Create a CBW with a SCSI command to write the given blocks to the device */ + CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t) + { + .Signature = CBW_SIGNATURE, + .DataTransferLength = ((uint32_t)Blocks * BlockSize), + .Flags = COMMAND_DIRECTION_DATA_OUT, + .LUN = LUNIndex, + .SCSICommandLength = 10, + .SCSICommandData = + { + SCSI_CMD_WRITE_10, + 0x00, // Unused (control bits, all off) + (BlockAddress >> 24), // MSB of Block Address + (BlockAddress >> 16), + (BlockAddress >> 8), + (BlockAddress & 0xFF), // LSB of Block Address + 0x00, // Unused (reserved) + 0x00, // MSB of Total Blocks to Write + Blocks, // LSB of Total Blocks to Write + 0x00 // Unused (control) + } + }; + + CommandStatusWrapper_t SCSICommandStatus; + + /* Send the command and any data to the attached device */ + if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, BufferPtr)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + /* Retrieve status information from the attached device */ + if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + return ErrorCode; +} + +/** Issues a SCSI Device Test Unit Ready command to the attached device, to determine if the device is ready to accept + * other commands. + * + * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails + */ +uint8_t MassStore_TestUnitReady(const uint8_t LUNIndex) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + /* Create a CBW with a SCSI command to issue TEST UNIT READY command */ + CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t) + { + .Signature = CBW_SIGNATURE, + .DataTransferLength = 0, + .Flags = COMMAND_DIRECTION_DATA_IN, + .LUN = LUNIndex, + .SCSICommandLength = 6, + .SCSICommandData = + { + SCSI_CMD_TEST_UNIT_READY, + 0x00, // Reserved + 0x00, // Reserved + 0x00, // Reserved + 0x00, // Reserved + 0x00 // Unused (control) + } + }; + + CommandStatusWrapper_t SCSICommandStatus; + + /* Send the command and any data to the attached device */ + if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, NULL)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + /* Retrieve status information from the attached device */ + if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + return ErrorCode; +} + +/** Issues a SCSI Device Read Capacity command to the attached device, to determine the capacity of the + * given Logical Unit within the device. + * + * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to + * \param[out] CapacityPtr Device capacity structure where the capacity data is to be stored + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails + */ +uint8_t MassStore_ReadCapacity(const uint8_t LUNIndex, SCSI_Capacity_t* const CapacityPtr) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + /* Create a CBW with a SCSI command to issue READ CAPACITY command */ + CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t) + { + .Signature = CBW_SIGNATURE, + .DataTransferLength = sizeof(SCSI_Capacity_t), + .Flags = COMMAND_DIRECTION_DATA_IN, + .LUN = LUNIndex, + .SCSICommandLength = 10, + .SCSICommandData = + { + SCSI_CMD_READ_CAPACITY_10, + 0x00, // Reserved + 0x00, // MSB of Logical block address + 0x00, + 0x00, + 0x00, // LSB of Logical block address + 0x00, // Reserved + 0x00, // Reserved + 0x00, // Partial Medium Indicator + 0x00 // Unused (control) + } + }; + + CommandStatusWrapper_t SCSICommandStatus; + + /* Send the command and any data to the attached device */ + if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, CapacityPtr)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + /* Endian-correct the read data */ + CapacityPtr->Blocks = SwapEndian_32(CapacityPtr->Blocks); + CapacityPtr->BlockSize = SwapEndian_32(CapacityPtr->BlockSize); + + /* Retrieve status information from the attached device */ + if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + return ErrorCode; +} + +/** Issues a SCSI Device Prevent/Allow Medium Removal command to the attached device, to lock the physical media from + * being removed. This is a legacy command for SCSI disks with removable storage (such as ZIP disks), but should still + * be issued before the first read or write command is sent. + * + * \param[in] LUNIndex Index of the LUN inside the device the command is being addressed to + * \param[in] PreventRemoval Whether or not the LUN media should be locked to prevent removal or not + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum, or MASS_STORE_SCSI_COMMAND_FAILED if the SCSI command fails + */ +uint8_t MassStore_PreventAllowMediumRemoval(const uint8_t LUNIndex, const bool PreventRemoval) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + /* Create a CBW with a SCSI command to issue PREVENT ALLOW MEDIUM REMOVAL command */ + CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t) + { + .Signature = CBW_SIGNATURE, + .DataTransferLength = 0, + .Flags = COMMAND_DIRECTION_DATA_OUT, + .LUN = LUNIndex, + .SCSICommandLength = 6, + .SCSICommandData = + { + SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL, + 0x00, // Reserved + 0x00, // Reserved + PreventRemoval, // Prevent flag + 0x00, // Reserved + 0x00 // Unused (control) + } + }; + + CommandStatusWrapper_t SCSICommandStatus; + + /* Send the command and any data to the attached device */ + if ((ErrorCode = MassStore_SendCommand(&SCSICommandBlock, NULL)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + /* Retrieve status information from the attached device */ + if ((ErrorCode = MassStore_GetReturnedStatus(&SCSICommandStatus)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + return ErrorCode; +} diff --git a/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.h b/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.h index 30b74a27f..546460607 100644 --- a/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.h +++ b/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.h @@ -1,209 +1,209 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2010.
-
- dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
-*/
-
-/*
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
- Permission to use, copy, modify, distribute, and sell this
- software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
- all copies and that both that the copyright notice and 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
- software without specific, written prior permission.
-
- The author disclaim all warranties with regard to this
- software, including all implied warranties of merchantability
- and fitness. In no event shall the author be liable for any
- special, indirect or consequential damages or any damages
- whatsoever resulting from loss of use, data or profits, whether
- in an action of contract, negligence or other tortious action,
- arising out of or in connection with the use or performance of
- this software.
-*/
-
-/** \file
- *
- * Header file for MassStoreCommands.c.
- */
-
-#ifndef _MASS_STORE_COMMANDS_H_
-#define _MASS_STORE_COMMANDS_H_
-
- /* Includes: */
- #include <avr/io.h>
-
- #include "MassStorageHost.h"
- #include "SCSI_Codes.h"
-
- #include <LUFA/Drivers/USB/USB.h>
-
- /* Macros: */
- /** Class specific request to reset the Mass Storage interface of the attached device */
- #define REQ_MassStorageReset 0xFF
-
- /** Class specific request to retrieve the maximum Logical Unit Number (LUN) index of the attached device */
- #define REQ_GetMaxLUN 0xFE
-
- /** Command Block Wrapper signature byte, for verification of valid CBW blocks */
- #define CBW_SIGNATURE 0x43425355UL
-
- /** Command Static Wrapper signature byte, for verification of valid CSW blocks */
- #define CSW_SIGNATURE 0x53425355UL
-
- /** Data direction mask for the Flags field of a CBW, indicating Host-to-Device transfer direction */
- #define COMMAND_DIRECTION_DATA_OUT (0 << 7)
-
- /** Data direction mask for the Flags field of a CBW, indicating Device-to-Host transfer direction */
- #define COMMAND_DIRECTION_DATA_IN (1 << 7)
-
- /** Timeout period between the issuing of a CBW to a device, and the reception of the first packet */
- #define COMMAND_DATA_TIMEOUT_MS 10000
-
- /** Pipe number of the Mass Storage data IN pipe */
- #define MASS_STORE_DATA_IN_PIPE 1
-
- /** Pipe number of the Mass Storage data OUT pipe */
- #define MASS_STORE_DATA_OUT_PIPE 2
-
- /** Additional error code for Mass Storage functions when a device returns a logical command failure */
- #define MASS_STORE_SCSI_COMMAND_FAILED 0xC0
-
- /* Type defines: */
- /** Type define for a Mass Storage class Command Block Wrapper, used to wrap SCSI
- * commands for transport over the USB bulk endpoints to the device.
- */
- typedef struct
- {
- uint32_t Signature; /**< Command block signature, always equal to CBW_SIGNATURE */
- uint32_t Tag; /**< Current CBW tag, to positively associate a CBW with a CSW (filled automatically) */
- uint32_t DataTransferLength; /**< Length of data to transfer, following the CBW */
- uint8_t Flags; /**< Block flags, equal to one of the COMMAND_DIRECTION_DATA_* macros */
- uint8_t LUN; /**< Logical Unit Number the CBW is addressed to in the device */
- uint8_t SCSICommandLength; /**< Length of the SCSI command in the CBW */
- uint8_t SCSICommandData[16]; /**< SCSI command to issue to the device */
- } CommandBlockWrapper_t;
-
- /** Type define for a Mass Storage class Command Status Wrapper, used to wrap SCSI
- * responses for transport over the USB bulk endpoints from the device.
- */
- typedef struct
- {
- uint32_t Signature; /**< Command status signature, always equal to CSW_SIGNATURE */
- uint32_t Tag; /**< Current CBW tag, to positively associate a CBW with a CSW */
- uint32_t DataTransferResidue; /**< Length of data not transferred */
- uint8_t Status; /**< Command status, a value from the MassStorageHost_CommandStatusCodes_t enum */
- } CommandStatusWrapper_t;
-
- /** Type define for a SCSI Sense structure. Structures of this type are filled out by the
- * device via the MassStore_RequestSense() function, indicating the current sense data of the
- * device (giving explicit error codes for the last issued command). For details of the
- * structure contents, refer to the SCSI specifications.
- */
- typedef struct
- {
- uint8_t ResponseCode;
-
- uint8_t SegmentNumber;
-
- unsigned char SenseKey : 4;
- unsigned char _RESERVED1 : 1;
- unsigned char ILI : 1;
- unsigned char EOM : 1;
- unsigned char FileMark : 1;
-
- uint8_t Information[4];
- uint8_t AdditionalLength;
- uint8_t CmdSpecificInformation[4];
- uint8_t AdditionalSenseCode;
- uint8_t AdditionalSenseQualifier;
- uint8_t FieldReplaceableUnitCode;
- uint8_t SenseKeySpecific[3];
- } SCSI_Request_Sense_Response_t;
-
- /** Type define for a SCSI Inquiry structure. Structures of this type are filled out by the
- * device via the MassStore_Inquiry() function, retrieving the attached device's information.
- * For details of the structure contents, refer to the SCSI specifications.
- */
- typedef struct
- {
- unsigned char DeviceType : 5;
- unsigned char PeripheralQualifier : 3;
-
- unsigned char _RESERVED1 : 7;
- unsigned char Removable : 1;
-
- uint8_t Version;
-
- unsigned char ResponseDataFormat : 4;
- unsigned char _RESERVED2 : 1;
- unsigned char NormACA : 1;
- unsigned char TrmTsk : 1;
- unsigned char AERC : 1;
-
- uint8_t AdditionalLength;
- uint8_t _RESERVED3[2];
-
- unsigned char SoftReset : 1;
- unsigned char CmdQue : 1;
- unsigned char _RESERVED4 : 1;
- unsigned char Linked : 1;
- unsigned char Sync : 1;
- unsigned char WideBus16Bit : 1;
- unsigned char WideBus32Bit : 1;
- unsigned char RelAddr : 1;
-
- uint8_t VendorID[8];
- uint8_t ProductID[16];
- uint8_t RevisionID[4];
- } SCSI_Inquiry_Response_t;
-
- /** SCSI capacity structure, to hold the total capacity of the device in both the number
- * of blocks in the current LUN, and the size of each block. This structure is filled by
- * the device when the MassStore_ReadCapacity() function is called.
- */
- typedef struct
- {
- uint32_t Blocks; /**< Number of blocks in the addressed LUN of the device */
- uint32_t BlockSize; /**< Number of bytes in each block in the addressed LUN */
- } SCSI_Capacity_t;
-
- /* Enums: */
- /** CSW status return codes, indicating the overall status of the issued CBW */
- enum MassStorageHost_CommandStatusCodes_t
- {
- Command_Pass = 0, /**< Command completed successfully */
- Command_Fail = 1, /**< Command failed to complete successfully */
- Phase_Error = 2 /**< Phase error while processing the issued command */
- };
-
- /* Function Prototypes: */
- #if defined(INCLUDE_FROM_MASSSTORE_COMMANDS_C)
- static uint8_t MassStore_SendCommand(CommandBlockWrapper_t* SCSICommandBlock, void* BufferPtr);
- static uint8_t MassStore_WaitForDataReceived(void);
- static uint8_t MassStore_SendReceiveData(CommandBlockWrapper_t* SCSICommandBlock, void* BufferPtr) ATTR_NON_NULL_PTR_ARG(1);
- static uint8_t MassStore_GetReturnedStatus(CommandStatusWrapper_t* SCSICommandStatus) ATTR_NON_NULL_PTR_ARG(1);
- #endif
-
- uint8_t MassStore_MassStorageReset(void);
- uint8_t MassStore_GetMaxLUN(uint8_t* const MaxLUNIndex);
- uint8_t MassStore_RequestSense(const uint8_t LUNIndex, SCSI_Request_Sense_Response_t* const SensePtr)
- ATTR_NON_NULL_PTR_ARG(2);
- uint8_t MassStore_Inquiry(const uint8_t LUNIndex, SCSI_Inquiry_Response_t* const InquiryPtr)
- ATTR_NON_NULL_PTR_ARG(2);
- uint8_t MassStore_ReadDeviceBlock(const uint8_t LUNIndex, const uint32_t BlockAddress,
- const uint8_t Blocks, const uint16_t BlockSize, void* BufferPtr) ATTR_NON_NULL_PTR_ARG(5);
- uint8_t MassStore_WriteDeviceBlock(const uint8_t LUNIndex, const uint32_t BlockAddress,
- const uint8_t Blocks, const uint16_t BlockSize, void* BufferPtr) ATTR_NON_NULL_PTR_ARG(5);
- uint8_t MassStore_ReadCapacity(const uint8_t LUNIndex, SCSI_Capacity_t* const CapacityPtr)
- ATTR_NON_NULL_PTR_ARG(2);
- uint8_t MassStore_TestUnitReady(const uint8_t LUNIndex);
- uint8_t MassStore_PreventAllowMediumRemoval(const uint8_t LUNIndex, const bool PreventRemoval);
-
-#endif
+/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and 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 + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Header file for MassStoreCommands.c. + */ + +#ifndef _MASS_STORE_COMMANDS_H_ +#define _MASS_STORE_COMMANDS_H_ + + /* Includes: */ + #include <avr/io.h> + + #include "MassStorageHost.h" + #include "SCSI_Codes.h" + + #include <LUFA/Drivers/USB/USB.h> + + /* Macros: */ + /** Class specific request to reset the Mass Storage interface of the attached device */ + #define REQ_MassStorageReset 0xFF + + /** Class specific request to retrieve the maximum Logical Unit Number (LUN) index of the attached device */ + #define REQ_GetMaxLUN 0xFE + + /** Command Block Wrapper signature byte, for verification of valid CBW blocks */ + #define CBW_SIGNATURE 0x43425355UL + + /** Command Static Wrapper signature byte, for verification of valid CSW blocks */ + #define CSW_SIGNATURE 0x53425355UL + + /** Data direction mask for the Flags field of a CBW, indicating Host-to-Device transfer direction */ + #define COMMAND_DIRECTION_DATA_OUT (0 << 7) + + /** Data direction mask for the Flags field of a CBW, indicating Device-to-Host transfer direction */ + #define COMMAND_DIRECTION_DATA_IN (1 << 7) + + /** Timeout period between the issuing of a CBW to a device, and the reception of the first packet */ + #define COMMAND_DATA_TIMEOUT_MS 10000 + + /** Pipe number of the Mass Storage data IN pipe */ + #define MASS_STORE_DATA_IN_PIPE 1 + + /** Pipe number of the Mass Storage data OUT pipe */ + #define MASS_STORE_DATA_OUT_PIPE 2 + + /** Additional error code for Mass Storage functions when a device returns a logical command failure */ + #define MASS_STORE_SCSI_COMMAND_FAILED 0xC0 + + /* Type defines: */ + /** Type define for a Mass Storage class Command Block Wrapper, used to wrap SCSI + * commands for transport over the USB bulk endpoints to the device. + */ + typedef struct + { + uint32_t Signature; /**< Command block signature, always equal to CBW_SIGNATURE */ + uint32_t Tag; /**< Current CBW tag, to positively associate a CBW with a CSW (filled automatically) */ + uint32_t DataTransferLength; /**< Length of data to transfer, following the CBW */ + uint8_t Flags; /**< Block flags, equal to one of the COMMAND_DIRECTION_DATA_* macros */ + uint8_t LUN; /**< Logical Unit Number the CBW is addressed to in the device */ + uint8_t SCSICommandLength; /**< Length of the SCSI command in the CBW */ + uint8_t SCSICommandData[16]; /**< SCSI command to issue to the device */ + } CommandBlockWrapper_t; + + /** Type define for a Mass Storage class Command Status Wrapper, used to wrap SCSI + * responses for transport over the USB bulk endpoints from the device. + */ + typedef struct + { + uint32_t Signature; /**< Command status signature, always equal to CSW_SIGNATURE */ + uint32_t Tag; /**< Current CBW tag, to positively associate a CBW with a CSW */ + uint32_t DataTransferResidue; /**< Length of data not transferred */ + uint8_t Status; /**< Command status, a value from the MassStorageHost_CommandStatusCodes_t enum */ + } CommandStatusWrapper_t; + + /** Type define for a SCSI Sense structure. Structures of this type are filled out by the + * device via the MassStore_RequestSense() function, indicating the current sense data of the + * device (giving explicit error codes for the last issued command). For details of the + * structure contents, refer to the SCSI specifications. + */ + typedef struct + { + uint8_t ResponseCode; + + uint8_t SegmentNumber; + + unsigned char SenseKey : 4; + unsigned char _RESERVED1 : 1; + unsigned char ILI : 1; + unsigned char EOM : 1; + unsigned char FileMark : 1; + + uint8_t Information[4]; + uint8_t AdditionalLength; + uint8_t CmdSpecificInformation[4]; + uint8_t AdditionalSenseCode; + uint8_t AdditionalSenseQualifier; + uint8_t FieldReplaceableUnitCode; + uint8_t SenseKeySpecific[3]; + } SCSI_Request_Sense_Response_t; + + /** Type define for a SCSI Inquiry structure. Structures of this type are filled out by the + * device via the MassStore_Inquiry() function, retrieving the attached device's information. + * For details of the structure contents, refer to the SCSI specifications. + */ + typedef struct + { + unsigned char DeviceType : 5; + unsigned char PeripheralQualifier : 3; + + unsigned char _RESERVED1 : 7; + unsigned char Removable : 1; + + uint8_t Version; + + unsigned char ResponseDataFormat : 4; + unsigned char _RESERVED2 : 1; + unsigned char NormACA : 1; + unsigned char TrmTsk : 1; + unsigned char AERC : 1; + + uint8_t AdditionalLength; + uint8_t _RESERVED3[2]; + + unsigned char SoftReset : 1; + unsigned char CmdQue : 1; + unsigned char _RESERVED4 : 1; + unsigned char Linked : 1; + unsigned char Sync : 1; + unsigned char WideBus16Bit : 1; + unsigned char WideBus32Bit : 1; + unsigned char RelAddr : 1; + + uint8_t VendorID[8]; + uint8_t ProductID[16]; + uint8_t RevisionID[4]; + } SCSI_Inquiry_Response_t; + + /** SCSI capacity structure, to hold the total capacity of the device in both the number + * of blocks in the current LUN, and the size of each block. This structure is filled by + * the device when the MassStore_ReadCapacity() function is called. + */ + typedef struct + { + uint32_t Blocks; /**< Number of blocks in the addressed LUN of the device */ + uint32_t BlockSize; /**< Number of bytes in each block in the addressed LUN */ + } SCSI_Capacity_t; + + /* Enums: */ + /** CSW status return codes, indicating the overall status of the issued CBW */ + enum MassStorageHost_CommandStatusCodes_t + { + Command_Pass = 0, /**< Command completed successfully */ + Command_Fail = 1, /**< Command failed to complete successfully */ + Phase_Error = 2 /**< Phase error while processing the issued command */ + }; + + /* Function Prototypes: */ + #if defined(INCLUDE_FROM_MASSSTORE_COMMANDS_C) + static uint8_t MassStore_SendCommand(CommandBlockWrapper_t* SCSICommandBlock, void* BufferPtr); + static uint8_t MassStore_WaitForDataReceived(void); + static uint8_t MassStore_SendReceiveData(CommandBlockWrapper_t* SCSICommandBlock, void* BufferPtr) ATTR_NON_NULL_PTR_ARG(1); + static uint8_t MassStore_GetReturnedStatus(CommandStatusWrapper_t* SCSICommandStatus) ATTR_NON_NULL_PTR_ARG(1); + #endif + + uint8_t MassStore_MassStorageReset(void); + uint8_t MassStore_GetMaxLUN(uint8_t* const MaxLUNIndex); + uint8_t MassStore_RequestSense(const uint8_t LUNIndex, SCSI_Request_Sense_Response_t* const SensePtr) + ATTR_NON_NULL_PTR_ARG(2); + uint8_t MassStore_Inquiry(const uint8_t LUNIndex, SCSI_Inquiry_Response_t* const InquiryPtr) + ATTR_NON_NULL_PTR_ARG(2); + uint8_t MassStore_ReadDeviceBlock(const uint8_t LUNIndex, const uint32_t BlockAddress, + const uint8_t Blocks, const uint16_t BlockSize, void* BufferPtr) ATTR_NON_NULL_PTR_ARG(5); + uint8_t MassStore_WriteDeviceBlock(const uint8_t LUNIndex, const uint32_t BlockAddress, + const uint8_t Blocks, const uint16_t BlockSize, void* BufferPtr) ATTR_NON_NULL_PTR_ARG(5); + uint8_t MassStore_ReadCapacity(const uint8_t LUNIndex, SCSI_Capacity_t* const CapacityPtr) + ATTR_NON_NULL_PTR_ARG(2); + uint8_t MassStore_TestUnitReady(const uint8_t LUNIndex); + uint8_t MassStore_PreventAllowMediumRemoval(const uint8_t LUNIndex, const bool PreventRemoval); + +#endif diff --git a/Demos/Host/LowLevel/MassStorageHost/Lib/SCSI_Codes.h b/Demos/Host/LowLevel/MassStorageHost/Lib/SCSI_Codes.h index 62af9996f..5b6b76ac8 100644 --- a/Demos/Host/LowLevel/MassStorageHost/Lib/SCSI_Codes.h +++ b/Demos/Host/LowLevel/MassStorageHost/Lib/SCSI_Codes.h @@ -1,85 +1,85 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2010.
-
- dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
-*/
-
-/*
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
- Permission to use, copy, modify, distribute, and sell this
- software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
- all copies and that both that the copyright notice and 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
- software without specific, written prior permission.
-
- The author disclaim all warranties with regard to this
- software, including all implied warranties of merchantability
- and fitness. In no event shall the author be liable for any
- special, indirect or consequential damages or any damages
- whatsoever resulting from loss of use, data or profits, whether
- in an action of contract, negligence or other tortious action,
- arising out of or in connection with the use or performance of
- this software.
-*/
-
-/** \file
- *
- * Header containing macros for possible SCSI commands and SENSE data. Refer to
- * the SCSI standard documentation for more information on each SCSI command and
- * the SENSE data.
- */
-
-#ifndef _SCSI_CODES_H_
-#define _SCSI_CODES_H_
-
- /* Macros: */
- #define SCSI_CMD_INQUIRY 0x12
- #define SCSI_CMD_REQUEST_SENSE 0x03
- #define SCSI_CMD_TEST_UNIT_READY 0x00
- #define SCSI_CMD_READ_CAPACITY_10 0x25
- #define SCSI_CMD_SEND_DIAGNOSTIC 0x1D
- #define SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1E
- #define SCSI_CMD_WRITE_10 0x2A
- #define SCSI_CMD_READ_10 0x28
- #define SCSI_CMD_WRITE_6 0x0A
- #define SCSI_CMD_READ_6 0x08
- #define SCSI_CMD_VERIFY_10 0x2F
- #define SCSI_CMD_MODE_SENSE_6 0x1A
- #define SCSI_CMD_MODE_SENSE_10 0x5A
-
- #define SCSI_SENSE_KEY_GOOD 0x00
- #define SCSI_SENSE_KEY_RECOVERED_ERROR 0x01
- #define SCSI_SENSE_KEY_NOT_READY 0x02
- #define SCSI_SENSE_KEY_MEDIUM_ERROR 0x03
- #define SCSI_SENSE_KEY_HARDWARE_ERROR 0x04
- #define SCSI_SENSE_KEY_ILLEGAL_REQUEST 0x05
- #define SCSI_SENSE_KEY_UNIT_ATTENTION 0x06
- #define SCSI_SENSE_KEY_DATA_PROTECT 0x07
- #define SCSI_SENSE_KEY_BLANK_CHECK 0x08
- #define SCSI_SENSE_KEY_VENDOR_SPECIFIC 0x09
- #define SCSI_SENSE_KEY_COPY_ABORTED 0x0A
- #define SCSI_SENSE_KEY_ABORTED_COMMAND 0x0B
- #define SCSI_SENSE_KEY_VOLUME_OVERFLOW 0x0D
- #define SCSI_SENSE_KEY_MISCOMPARE 0x0E
-
- #define SCSI_ASENSE_NO_ADDITIONAL_INFORMATION 0x00
- #define SCSI_ASENSE_LOGICAL_UNIT_NOT_READY 0x04
- #define SCSI_ASENSE_INVALID_FIELD_IN_CDB 0x24
- #define SCSI_ASENSE_WRITE_PROTECTED 0x27
- #define SCSI_ASENSE_FORMAT_ERROR 0x31
- #define SCSI_ASENSE_INVALID_COMMAND 0x20
- #define SCSI_ASENSE_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x21
- #define SCSI_ASENSE_MEDIUM_NOT_PRESENT 0x3A
-
- #define SCSI_ASENSEQ_NO_QUALIFIER 0x00
- #define SCSI_ASENSEQ_FORMAT_COMMAND_FAILED 0x01
- #define SCSI_ASENSEQ_INITIALIZING_COMMAND_REQUIRED 0x02
- #define SCSI_ASENSEQ_OPERATION_IN_PROGRESS 0x07
-
-#endif
+/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and 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 + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Header containing macros for possible SCSI commands and SENSE data. Refer to + * the SCSI standard documentation for more information on each SCSI command and + * the SENSE data. + */ + +#ifndef _SCSI_CODES_H_ +#define _SCSI_CODES_H_ + + /* Macros: */ + #define SCSI_CMD_INQUIRY 0x12 + #define SCSI_CMD_REQUEST_SENSE 0x03 + #define SCSI_CMD_TEST_UNIT_READY 0x00 + #define SCSI_CMD_READ_CAPACITY_10 0x25 + #define SCSI_CMD_SEND_DIAGNOSTIC 0x1D + #define SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1E + #define SCSI_CMD_WRITE_10 0x2A + #define SCSI_CMD_READ_10 0x28 + #define SCSI_CMD_WRITE_6 0x0A + #define SCSI_CMD_READ_6 0x08 + #define SCSI_CMD_VERIFY_10 0x2F + #define SCSI_CMD_MODE_SENSE_6 0x1A + #define SCSI_CMD_MODE_SENSE_10 0x5A + + #define SCSI_SENSE_KEY_GOOD 0x00 + #define SCSI_SENSE_KEY_RECOVERED_ERROR 0x01 + #define SCSI_SENSE_KEY_NOT_READY 0x02 + #define SCSI_SENSE_KEY_MEDIUM_ERROR 0x03 + #define SCSI_SENSE_KEY_HARDWARE_ERROR 0x04 + #define SCSI_SENSE_KEY_ILLEGAL_REQUEST 0x05 + #define SCSI_SENSE_KEY_UNIT_ATTENTION 0x06 + #define SCSI_SENSE_KEY_DATA_PROTECT 0x07 + #define SCSI_SENSE_KEY_BLANK_CHECK 0x08 + #define SCSI_SENSE_KEY_VENDOR_SPECIFIC 0x09 + #define SCSI_SENSE_KEY_COPY_ABORTED 0x0A + #define SCSI_SENSE_KEY_ABORTED_COMMAND 0x0B + #define SCSI_SENSE_KEY_VOLUME_OVERFLOW 0x0D + #define SCSI_SENSE_KEY_MISCOMPARE 0x0E + + #define SCSI_ASENSE_NO_ADDITIONAL_INFORMATION 0x00 + #define SCSI_ASENSE_LOGICAL_UNIT_NOT_READY 0x04 + #define SCSI_ASENSE_INVALID_FIELD_IN_CDB 0x24 + #define SCSI_ASENSE_WRITE_PROTECTED 0x27 + #define SCSI_ASENSE_FORMAT_ERROR 0x31 + #define SCSI_ASENSE_INVALID_COMMAND 0x20 + #define SCSI_ASENSE_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x21 + #define SCSI_ASENSE_MEDIUM_NOT_PRESENT 0x3A + + #define SCSI_ASENSEQ_NO_QUALIFIER 0x00 + #define SCSI_ASENSEQ_FORMAT_COMMAND_FAILED 0x01 + #define SCSI_ASENSEQ_INITIALIZING_COMMAND_REQUIRED 0x02 + #define SCSI_ASENSEQ_OPERATION_IN_PROGRESS 0x07 + +#endif |