diff options
Diffstat (limited to 'Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c')
-rw-r--r-- | Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c | 63 |
1 files changed, 63 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.
*
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