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

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This commit is contained in:
Dean Camera 2009-06-23 09:01:23 +00:00
parent bb23e55f11
commit 64937a6206
3 changed files with 115 additions and 2 deletions
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63
Demos/Host/LowLevel/MassStorageHost/Lib/MassStoreCommands.c
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@ -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.
*