/*
LUFA Library
- Copyright (C) Dean Camera, 2010.
-
+ Copyright (C) Dean Camera, 2012.
+
dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
+ www.lufa-lib.org
*/
/*
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
- Permission to use, copy, modify, distribute, and sell this
+ 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
+ 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
+ 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
* 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"
*
* \return A value from the Pipe_Stream_RW_ErrorCodes_t enum
*/
-static uint8_t MassStore_SendCommand(CommandBlockWrapper_t* const SCSICommandBlock,
+static uint8_t MassStore_SendCommand(MS_CommandBlockWrapper_t* const 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)
+ if (++MassStore_Tag == 0xFFFFFFFF)
MassStore_Tag = 1;
+ /* Each transmission should have a unique tag value, increment before use */
+ SCSICommandBlock->Tag = MassStore_Tag;
+
/* 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;
+ if ((ErrorCode = Pipe_Write_Stream_LE(SCSICommandBlock, sizeof(MS_CommandBlockWrapper_t), NULL)) !=
+ PIPE_RWSTREAM_NoError)
+ {
+ Pipe_Freeze();
+ 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))
+
+ if (BufferPtr != NULL)
{
- Pipe_Freeze();
- return ErrorCode;
+ /* Transfer the requested data (if any) to or from the device */
+ ErrorCode = MassStore_SendReceiveData(SCSICommandBlock, (void*)BufferPtr);
+
+ /* Only fail completely if the transfer fails without a STALL, as a logical STALL can be recovered from */
+ if ((ErrorCode != PIPE_RWSTREAM_NoError) && (ErrorCode != PIPE_RWSTREAM_PipeStalled))
+ {
+ Pipe_Freeze();
+ return ErrorCode;
+ }
}
-
- return ErrorCode;
+
+ /* Retrieve the returned SCSI status from the device */
+ MS_CommandStatusWrapper_t SCSIStatusBlock;
+ return MassStore_GetReturnedStatus(&SCSIStatusBlock);
}
/** Waits until the attached device is ready to accept data following a CBW, checking
*/
static uint8_t MassStore_WaitForDataReceived(void)
{
- uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS;
+ uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS;
+ uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();
/* Select the IN data pipe for data reception */
Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
/* Wait until data received in the IN pipe */
while (!(Pipe_IsINReceived()))
{
+ uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();
+
/* Check to see if a new frame has been issued (1ms elapsed) */
- if (USB_INT_HasOccurred(USB_INT_HSOFI))
+ if (CurrentFrameNumber != PreviousFrameNumber)
{
- /* Clear the flag and decrement the timeout period counter */
- USB_INT_Clear(USB_INT_HSOFI);
+ /* Save the new frame number and decrement the timeout period */
+ PreviousFrameNumber = CurrentFrameNumber;
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();
if (Pipe_IsStalled())
{
/* Clear the stall condition on the OUT pipe */
- USB_Host_ClearPipeStall(MASS_STORE_DATA_OUT_PIPE);
+ USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress());
return PIPE_RWSTREAM_PipeStalled;
}
-
+
Pipe_Freeze();
Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
Pipe_Unfreeze();
if (Pipe_IsStalled())
{
/* Clear the stall condition on the IN pipe */
- USB_Host_ClearPipeStall(MASS_STORE_DATA_IN_PIPE);
+ USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress());
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 A value from the Pipe_Stream_RW_ErrorCodes_t enum
*/
-static uint8_t MassStore_SendReceiveData(CommandBlockWrapper_t* const SCSICommandBlock,
+static uint8_t MassStore_SendReceiveData(MS_CommandBlockWrapper_t* const 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)
+ if (SCSICommandBlock->Flags & MS_COMMAND_DIR_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)
+ if ((ErrorCode = Pipe_Read_Stream_LE(BufferPtr, BytesRem, NULL)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
/* Acknowledge the packet */
Pipe_Unfreeze();
/* Write the block data to the pipe */
- if ((ErrorCode = Pipe_Write_Stream_LE(BufferPtr, BytesRem)) != PIPE_RWSTREAM_NoError)
+ if ((ErrorCode = Pipe_Write_Stream_LE(BufferPtr, BytesRem, NULL)) != 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 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* const SCSICommandStatus)
+static uint8_t MassStore_GetReturnedStatus(MS_CommandStatusWrapper_t* const SCSICommandStatus)
{
uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
/* 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;
-
+ if ((ErrorCode = Pipe_Read_Stream_LE(SCSICommandStatus, sizeof(MS_CommandStatusWrapper_t), NULL)) !=
+ 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)
+ if (SCSICommandStatus->Status != MS_SCSI_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.
+ * readying the device for the next CBW. The Data endpoints are cleared of any STALL condition once this
+ * command completes successfully.
*
* \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)
{
+ uint8_t ErrorCode;
+
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
- .bRequest = REQ_MassStorageReset,
+ .bRequest = MS_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);
+ if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
+ return ErrorCode;
+
+ /* Select first data pipe to clear STALL condition if one exists */
+ Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
+
+ if ((ErrorCode = USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress())) != HOST_SENDCONTROL_Successful)
+ return ErrorCode;
+
+ /* Select second data pipe to clear STALL condition if one exists */
+ Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE);
+
+ if ((ErrorCode = USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress())) != HOST_SENDCONTROL_Successful)
+ return ErrorCode;
+
+ return HOST_SENDCONTROL_Successful;
}
/** Issues a Mass Storage class specific request to determine the index of the highest numbered Logical
*/
uint8_t MassStore_GetMaxLUN(uint8_t* const MaxLUNIndex)
{
- uint8_t ErrorCode = HOST_SENDCONTROL_Successful;
+ uint8_t ErrorCode;
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
- .bRequest = REQ_GetMaxLUN,
+ .bRequest = MS_REQ_GetMaxLUN,
.wValue = 0,
.wIndex = 0,
.wLength = 1,
};
-
+
/* Select the control pipe for the request transfer */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
{
/* 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;
}
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)
+ MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
- .Signature = CBW_SIGNATURE,
+ .Signature = MS_CBW_SIGNATURE,
.DataTransferLength = sizeof(SCSI_Inquiry_Response_t),
- .Flags = COMMAND_DIRECTION_DATA_IN,
+ .Flags = MS_COMMAND_DIR_DATA_IN,
.LUN = LUNIndex,
.SCSICommandLength = 6,
.SCSICommandData =
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;
+ return MassStore_SendCommand(&SCSICommandBlock, InquiryPtr);
}
/** Issues a SCSI Request Sense command to the attached device, to determine the current SCSI sense information. This
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)
+ MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
- .Signature = CBW_SIGNATURE,
+ .Signature = MS_CBW_SIGNATURE,
.DataTransferLength = sizeof(SCSI_Request_Sense_Response_t),
- .Flags = COMMAND_DIRECTION_DATA_IN,
+ .Flags = MS_COMMAND_DIR_DATA_IN,
.LUN = LUNIndex,
.SCSICommandLength = 6,
.SCSICommandData =
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;
+ return MassStore_SendCommand(&SCSICommandBlock, SensePtr);
}
/** Issues a SCSI Device Block Read command to the attached device, to read in one or more data blocks from the
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)
+ MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
- .Signature = CBW_SIGNATURE,
+ .Signature = MS_CBW_SIGNATURE,
.DataTransferLength = ((uint32_t)Blocks * BlockSize),
- .Flags = COMMAND_DIRECTION_DATA_IN,
+ .Flags = MS_COMMAND_DIR_DATA_IN,
.LUN = LUNIndex,
.SCSICommandLength = 10,
.SCSICommandData =
(BlockAddress >> 16),
(BlockAddress >> 8),
(BlockAddress & 0xFF), // LSB of Block Address
- 0x00, // Unused (reserved)
+ 0x00, // 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;
+ return MassStore_SendCommand(&SCSICommandBlock, BufferPtr);
}
/** Issues a SCSI Device Block Write command to the attached device, to write one or more data blocks to the
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)
+ MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
- .Signature = CBW_SIGNATURE,
+ .Signature = MS_CBW_SIGNATURE,
.DataTransferLength = ((uint32_t)Blocks * BlockSize),
- .Flags = COMMAND_DIRECTION_DATA_OUT,
+ .Flags = MS_COMMAND_DIR_DATA_OUT,
.LUN = LUNIndex,
.SCSICommandLength = 10,
.SCSICommandData =
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;
+ return MassStore_SendCommand(&SCSICommandBlock, BufferPtr);
}
/** Issues a SCSI Device Test Unit Ready command to the attached device, to determine if the device is ready to accept
*/
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)
+ MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
- .Signature = CBW_SIGNATURE,
+ .Signature = MS_CBW_SIGNATURE,
.DataTransferLength = 0,
- .Flags = COMMAND_DIRECTION_DATA_IN,
+ .Flags = MS_COMMAND_DIR_DATA_IN,
.LUN = LUNIndex,
.SCSICommandLength = 6,
.SCSICommandData =
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;
+ return MassStore_SendCommand(&SCSICommandBlock, NULL);
}
/** Issues a SCSI Device Read Capacity command to the attached device, to determine the capacity of the
uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
/* Create a CBW with a SCSI command to issue READ CAPACITY command */
- CommandBlockWrapper_t SCSICommandBlock = (CommandBlockWrapper_t)
+ MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
- .Signature = CBW_SIGNATURE,
+ .Signature = MS_CBW_SIGNATURE,
.DataTransferLength = sizeof(SCSI_Capacity_t),
- .Flags = COMMAND_DIRECTION_DATA_IN,
+ .Flags = MS_COMMAND_DIR_DATA_IN,
.LUN = LUNIndex,
.SCSICommandLength = 10,
.SCSICommandData =
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;
- }
-
+ 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;
}
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)
+ MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
- .Signature = CBW_SIGNATURE,
+ .Signature = MS_CBW_SIGNATURE,
.DataTransferLength = 0,
- .Flags = COMMAND_DIRECTION_DATA_OUT,
+ .Flags = MS_COMMAND_DIR_DATA_OUT,
.LUN = LUNIndex,
.SCSICommandLength = 6,
.SCSICommandData =
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;
+ return MassStore_SendCommand(&SCSICommandBlock, NULL);
}
+
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