MassStorageHost demo now retrieves Inquiry data from the device during enumeration, and prints the device's Vendor and Product IDs.

2 files changed, 102 insertions, 0 deletions

diff --git a/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c b/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c
index b89ad1969..e2a64da90 100644
--- a/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c
+++ b/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c
@@ -301,6 +301,69 @@ uint8_t MassStore_GetMaxLUN(uint8_t* const MaxLUNIndex)
 	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 LUNIndex    Index of the LUN inside the device the command is being addressed to

+ *  \param 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

+ */

+uint8_t MassStore_Inquiry(const uint8_t LUNIndex, const SCSI_Inquiry_Response_t* const InquiryPtr)

+{

+	uint8_t ReturnCode = PIPE_RWSTREAM_NoError;

+

+	/* Create a CBW with a SCSI command to issue INQUIRY command */

+	SCSICommandBlock = (CommandBlockWrapper_t)

+		{

+			.Header =

+				{

+					.Signature          = CBW_SIGNATURE,

+					.Tag                = MassStore_Tag,

+					.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)

+				}

+		};

+	

+	/* Send SCSI command to the attached device */

+	MassStore_SendCommand();

+

+	/* Wait until data received from the device */

+	if ((ReturnCode = MassStore_WaitForDataReceived()) != PIPE_RWSTREAM_NoError)

+	{

+		Pipe_Freeze();

+		return ReturnCode;

+	}

+

+	/* Read the returned sense data into the buffer */

+	if ((ReturnCode = MassStore_SendReceiveData((uint8_t*)InquiryPtr)) != PIPE_RWSTREAM_NoError)

+	{

+		Pipe_Freeze();

+		return ReturnCode;

+	}	

+	

+	/* Read in the returned CSW from the device */

+	if ((ReturnCode = MassStore_GetReturnedStatus()) != PIPE_RWSTREAM_NoError)

+	{

+		Pipe_Freeze();

+		return ReturnCode;

+	}

+	

+	return PIPE_RWSTREAM_NoError;

+}

+

 /** 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.

  *

diff --git a/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.h b/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.h
index 78700de84..8f3e8a12e 100644
--- a/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.h
+++ b/Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.h
@@ -128,6 +128,43 @@
 			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.

@@ -162,6 +199,8 @@
 		uint8_t MassStore_GetMaxLUN(uint8_t* const MaxLUNIndex);

 		uint8_t MassStore_RequestSense(const uint8_t LUNIndex, const SCSI_Request_Sense_Response_t* const SensePtr)

 		                               ATTR_NON_NULL_PTR_ARG(2);

+		uint8_t MassStore_Inquiry(const uint8_t LUNIndex, const 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,