Exemple #1
0
/*! Emulate REQUEST SENSE */
void
ide_request_sense(ide_device_info *device, ide_qrequest *qrequest)
{
    scsi_ccb *request = qrequest->request;
    scsi_cmd_request_sense *cmd = (scsi_cmd_request_sense *)request->cdb;
    scsi_sense sense;
    uint32 transferSize;

    // cannot use finish_checksense here, as data is not copied into autosense buffer
    // but into normal data buffer, SCSI result is GOOD and CAM status is REQ_CMP

    if (device->combined_sense)
        create_sense(device, &sense);
    else
        memset(&sense, 0, sizeof(sense));

    copy_sg_data(request, 0, cmd->allocation_length, &sense, sizeof(sense), false);

    // reset sense information on read
    device->combined_sense = 0;

    transferSize = min_c(sizeof(sense), cmd->allocation_length);
    transferSize = min_c(transferSize, request->data_length);

    request->data_resid = request->data_length - transferSize;

    // normally, all flags are set to "success", but for Request Sense
    // this would have overwritten the sense we want to read
    device->subsys_status = SCSI_REQ_CMP;
    request->device_status = SCSI_STATUS_GOOD;
}
Exemple #2
0
void notify_sense( ide_qrequest *qrequest )
{
	CCB_SCSIIO *request = qrequest->request;
	ide_device_info *device = qrequest->device;
	
	if( request->cam_ch.cam_status == CAM_REQ_CMP ) {
		request->cam_ch.cam_status = CAM_REQ_CMP_ERR;
		request->cam_scsi_status = SCSI_STATUS_CHECK_CONDITION;
		
		if( (request->cam_ch.cam_flags & CAM_DIS_AUTOSENSE) == 0 ) {
			scsi_sense sense;
			int sense_len;
			
			create_sense( device, &sense );
			
			sense_len = min( request->cam_sense_len, sizeof( sense ));

			if( request->cam_sense_ptr != NULL ) {			
				memcpy( request->cam_sense_ptr, &sense, sense_len );
			
				request->cam_sense_resid = request->cam_sense_len - sense_len;
				request->cam_sense_len = sense_len;
			}
			
			request->cam_ch.cam_status |= CAM_AUTOSNS_VALID;
			
			device->combined_sense = 0;
		}
	} else
		// we destroyed old sense data anyway, so there's no way
		// to restore them if this request went seriously wrong 
		device->combined_sense = 0;
}