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Altered the Mass Storage Host class driver so that SCSI data STALLs from the attached device can be recovered from automatically without having to reset the Mass Storage interface.

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Altered the Mass Storage Host LowLevel demo so that SCSI data STALLs from the attached device can be recovered from automatically without having to reset the Mass Storage interface.
pull/1469/head
Dean Camera 13 years ago
parent 798cc84ff5
commit 0c59d5993e
3 changed files with 48 additions and 209 deletions
Show Stats Download Patch File Download Diff File

150
Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c
Unescape View File

@ -83,6 +83,7 @@ static uint8_t MassStore_SendCommand(MS_CommandBlockWrapper_t* const SCSICommand
if ((ErrorCode = Pipe_Write_Stream_LE(SCSICommandBlock, sizeof(MS_CommandBlockWrapper_t), NULL)) !=
PIPE_RWSTREAM_NoError)
{
Pipe_Freeze();
return ErrorCode;
}
@ -95,15 +96,22 @@ static uint8_t MassStore_SendCommand(MS_CommandBlockWrapper_t* const SCSICommand
/* Freeze pipe after use */
Pipe_Freeze();
/* Send data if any has been given */
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);
return ErrorCode;
/* 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;
}
}
/* 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
@ -366,8 +374,6 @@ uint8_t MassStore_GetMaxLUN(uint8_t* const MaxLUNIndex)
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 */
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
@ -387,23 +393,8 @@ uint8_t MassStore_Inquiry(const uint8_t LUNIndex,
}
};
MS_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
@ -417,8 +408,6 @@ uint8_t MassStore_Inquiry(const uint8_t LUNIndex,
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 */
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
@ -438,23 +427,8 @@ uint8_t MassStore_RequestSense(const uint8_t LUNIndex,
}
};
MS_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
@ -474,8 +448,6 @@ uint8_t MassStore_ReadDeviceBlock(const uint8_t LUNIndex,
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 */
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
@ -499,23 +471,8 @@ uint8_t MassStore_ReadDeviceBlock(const uint8_t LUNIndex,
}
};
MS_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
@ -535,8 +492,6 @@ uint8_t MassStore_WriteDeviceBlock(const uint8_t LUNIndex,
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 */
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
@ -560,23 +515,8 @@ uint8_t MassStore_WriteDeviceBlock(const uint8_t LUNIndex,
}
};
MS_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
@ -588,8 +528,6 @@ uint8_t MassStore_WriteDeviceBlock(const uint8_t LUNIndex,
*/
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 */
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
@ -609,23 +547,8 @@ uint8_t MassStore_TestUnitReady(const uint8_t LUNIndex)
}
};
MS_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
@ -664,26 +587,14 @@ uint8_t MassStore_ReadCapacity(const uint8_t LUNIndex,
}
};
MS_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;
}
@ -699,8 +610,6 @@ uint8_t MassStore_ReadCapacity(const uint8_t LUNIndex,
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 */
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
@ -720,22 +629,7 @@ uint8_t MassStore_PreventAllowMediumRemoval(const uint8_t LUNIndex,
}
};
MS_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);
}

5
LUFA/DoxygenPages/ChangeLog.txt
Unescape View File

@ -25,8 +25,11 @@
* - When automatic PLL management mode is enabled on the U4 series AVR8 chips, the PLL is now configured for 48MHz and not
* a divided 96MHz, to lower power consumption and to keep the system within the datasheet specs for 3.3V operation (thanks to Scott Vitale)
* - Added Class, ClassDevice, ClassHost and ClassCommon to the internal class driver source filenames to prevent ambiguities
* - Altered the Mass Storage Host class driver so that SCSI data STALLs from the attached device can be recovered from automatically without
* having to reset the Mass Storage interface
* - Library Applications:
* - None
* - Altered the Mass Storage Host LowLevel demo so that SCSI data STALLs from the attached device can be recovered from automatically without
* having to reset the Mass Storage interface
*
* <b>Fixed:</b>
* - Core:

102
LUFA/Drivers/USB/Class/Host/MassStorageClassHost.c
Unescape View File

@ -183,21 +183,28 @@ static uint8_t MS_Host_SendCommand(USB_ClassInfo_MS_Host_t* const MSInterfaceInf
if ((ErrorCode = Pipe_Write_Stream_LE(SCSICommandBlock, sizeof(MS_CommandBlockWrapper_t),
NULL)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
{
return ErrorCode;
}
Pipe_ClearOUT();
Pipe_WaitUntilReady();
Pipe_Freeze();
if ((BufferPtr != NULL) &&
((ErrorCode = MS_Host_SendReceiveData(MSInterfaceInfo, SCSICommandBlock, (void*)BufferPtr)) != PIPE_RWSTREAM_NoError))
if (BufferPtr != NULL)
{
Pipe_Freeze();
return ErrorCode;
ErrorCode = MS_Host_SendReceiveData(MSInterfaceInfo, SCSICommandBlock, (void*)BufferPtr);
if ((ErrorCode != PIPE_RWSTREAM_NoError) && (ErrorCode != PIPE_RWSTREAM_PipeStalled))
{
Pipe_Freeze();
return ErrorCode;
}
}
return ErrorCode;
MS_CommandStatusWrapper_t SCSIStatusBlock;
return MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSIStatusBlock);
}
static uint8_t MS_Host_WaitForDataReceived(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo)
@ -358,7 +365,7 @@ uint8_t MS_Host_ResetMSInterface(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo)
uint8_t MS_Host_GetMaxLUN(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
uint8_t* const MaxLUNIndex)
{
uint8_t ErrorCode = HOST_SENDCONTROL_Successful;
uint8_t ErrorCode;
USB_ControlRequest = (USB_Request_Header_t)
{
@ -387,8 +394,6 @@ uint8_t MS_Host_GetInquiryData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
return HOST_SENDCONTROL_DeviceDisconnected;
uint8_t ErrorCode;
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
.DataTransferLength = CPU_TO_LE32(sizeof(SCSI_Inquiry_Response_t)),
@ -406,15 +411,7 @@ uint8_t MS_Host_GetInquiryData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
}
};
MS_CommandStatusWrapper_t SCSICommandStatus;
if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, InquiryData)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
return PIPE_RWSTREAM_NoError;
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, InquiryData);
}
uint8_t MS_Host_TestUnitReady(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
@ -423,8 +420,6 @@ uint8_t MS_Host_TestUnitReady(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
return HOST_SENDCONTROL_DeviceDisconnected;
uint8_t ErrorCode;
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
.DataTransferLength = CPU_TO_LE32(0),
@ -442,15 +437,7 @@ uint8_t MS_Host_TestUnitReady(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
}
};
MS_CommandStatusWrapper_t SCSICommandStatus;
if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, NULL)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
return PIPE_RWSTREAM_NoError;
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, NULL);
}
uint8_t MS_Host_ReadDeviceCapacity(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
@ -483,17 +470,12 @@ uint8_t MS_Host_ReadDeviceCapacity(USB_ClassInfo_MS_Host_t* const MSInterfaceInf
}
};
MS_CommandStatusWrapper_t SCSICommandStatus;
if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, DeviceCapacity)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
DeviceCapacity->Blocks = BE32_TO_CPU(DeviceCapacity->Blocks);
DeviceCapacity->BlockSize = BE32_TO_CPU(DeviceCapacity->BlockSize);
if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
return PIPE_RWSTREAM_NoError;
}
@ -504,8 +486,6 @@ uint8_t MS_Host_RequestSense(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
return HOST_SENDCONTROL_DeviceDisconnected;
uint8_t ErrorCode;
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
.DataTransferLength = CPU_TO_LE32(sizeof(SCSI_Request_Sense_Response_t)),
@ -523,15 +503,7 @@ uint8_t MS_Host_RequestSense(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
}
};
MS_CommandStatusWrapper_t SCSICommandStatus;
if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, SenseData)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
return PIPE_RWSTREAM_NoError;
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, SenseData);
}
uint8_t MS_Host_PreventAllowMediumRemoval(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
@ -541,8 +513,6 @@ uint8_t MS_Host_PreventAllowMediumRemoval(USB_ClassInfo_MS_Host_t* const MSInter
if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
return HOST_SENDCONTROL_DeviceDisconnected;
uint8_t ErrorCode;
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
.DataTransferLength = CPU_TO_LE32(0),
@ -560,15 +530,7 @@ uint8_t MS_Host_PreventAllowMediumRemoval(USB_ClassInfo_MS_Host_t* const MSInter
}
};
MS_CommandStatusWrapper_t SCSICommandStatus;
if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, NULL)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
return PIPE_RWSTREAM_NoError;
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, NULL);
}
uint8_t MS_Host_ReadDeviceBlocks(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
@ -581,8 +543,6 @@ uint8_t MS_Host_ReadDeviceBlocks(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
return HOST_SENDCONTROL_DeviceDisconnected;
uint8_t ErrorCode;
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
.DataTransferLength = cpu_to_le32((uint32_t)Blocks * BlockSize),
@ -604,15 +564,7 @@ uint8_t MS_Host_ReadDeviceBlocks(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
}
};
MS_CommandStatusWrapper_t SCSICommandStatus;
if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, BlockBuffer)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
return PIPE_RWSTREAM_NoError;
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, BlockBuffer);
}
uint8_t MS_Host_WriteDeviceBlocks(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
@ -625,8 +577,6 @@ uint8_t MS_Host_WriteDeviceBlocks(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo
if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
return HOST_SENDCONTROL_DeviceDisconnected;
uint8_t ErrorCode;
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
{
.DataTransferLength = cpu_to_le32((uint32_t)Blocks * BlockSize),
@ -648,15 +598,7 @@ uint8_t MS_Host_WriteDeviceBlocks(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo
}
};
MS_CommandStatusWrapper_t SCSICommandStatus;
if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, BlockBuffer)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
return PIPE_RWSTREAM_NoError;
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, BlockBuffer);
}
#endif

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