usb/storage/datafab.c

70 static int datafab_determine_lun(struct us_data *us,
114 datafab_bulk_read(struct us_data *us, unsigned char *data, unsigned int len) {
118 	usb_stor_dbg(us, "len = %d\n", len);
119 	return usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
125 datafab_bulk_write(struct us_data *us, unsigned char *data, unsigned int len) {
129 	usb_stor_dbg(us, "len = %d\n", len);
130 	return usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
135 static int datafab_read_data(struct us_data *us,
140 	unsigned char *command = us->iobuf;
157 		result = datafab_determine_lun(us, info);
192 		result = datafab_bulk_write(us, command, 8);
197 		result = datafab_bulk_read(us, buffer, len);
202 		usb_stor_access_xfer_buf(buffer, len, us->srb,
218 static int datafab_write_data(struct us_data *us,
223 	unsigned char *command = us->iobuf;
224 	unsigned char *reply = us->iobuf;
241 		result = datafab_determine_lun(us, info);
265 		usb_stor_access_xfer_buf(buffer, len, us->srb,
280 		result = datafab_bulk_write(us, command, 8);
285 		result = datafab_bulk_write(us, buffer, len);
290 		result = datafab_bulk_read(us, reply, 2);
295 			usb_stor_dbg(us, "Gah! write return code: %02x %02x\n",
313 static int datafab_determine_lun(struct us_data *us,
323 	unsigned char *command = us->iobuf;
335 	usb_stor_dbg(us, "locating...\n");
342 		rc = datafab_bulk_write(us, command, 8);
348 		rc = datafab_bulk_read(us, buf, 512);
357 		rc = datafab_bulk_write(us, command, 8);
363 		rc = datafab_bulk_read(us, buf, 512);
380 static int datafab_id_device(struct us_data *us,
388 	unsigned char *command = us->iobuf;
396 		rc = datafab_determine_lun(us, info);
408 	rc = datafab_bulk_write(us, command, 8);
416 	rc = datafab_bulk_read(us, reply, 512);
436 static int datafab_handle_mode_sense(struct us_data *us,
454 	struct datafab_info *info = (struct datafab_info *) (us->extra);
455 	unsigned char *ptr = us->iobuf;
467 		   usb_stor_dbg(us, "Current values\n");
470 		   usb_stor_dbg(us, "Changeable values\n");
473 		   usb_stor_dbg(us, "Default values\n");
476 		   usb_stor_dbg(us, "Saves values\n");
547 static int datafab_transport(struct scsi_cmnd *srb, struct us_data *us)
552 	unsigned char *ptr = us->iobuf;
557 	if (!us->extra) {
558 		us->extra = kzalloc(sizeof(struct datafab_info), GFP_NOIO);
559 		if (!us->extra)
562 		us->extra_destructor = datafab_info_destructor;
563   		((struct datafab_info *)us->extra)->lun = -1;
566 	info = (struct datafab_info *) (us->extra);
569 		usb_stor_dbg(us, "INQUIRY - Returning bogus response\n");
571 		fill_inquiry_response(us, ptr, 36);
577 		rc = datafab_id_device(us, info);
581 		usb_stor_dbg(us, "READ_CAPACITY:  %ld sectors, %ld bytes per sector\n",
594 		usb_stor_dbg(us, "Gah! MODE_SELECT_10\n");
606 		usb_stor_dbg(us, "READ_10: read block 0x%04lx  count %ld\n",
608 		return datafab_read_data(us, info, block, blocks);
620 		usb_stor_dbg(us, "READ_12: read block 0x%04lx  count %ld\n",
622 		return datafab_read_data(us, info, block, blocks);
631 		usb_stor_dbg(us, "WRITE_10: write block 0x%04lx count %ld\n",
633 		return datafab_write_data(us, info, block, blocks);
645 		usb_stor_dbg(us, "WRITE_12: write block 0x%04lx count %ld\n",
647 		return datafab_write_data(us, info, block, blocks);
651 		usb_stor_dbg(us, "TEST_UNIT_READY\n");
652 		return datafab_id_device(us, info);
656 		usb_stor_dbg(us, "REQUEST_SENSE - Returning faked response\n");
674 		usb_stor_dbg(us, "MODE_SENSE_6 detected\n");
675 		return datafab_handle_mode_sense(us, srb, 1);
679 		usb_stor_dbg(us, "MODE_SENSE_10 detected\n");
680 		return datafab_handle_mode_sense(us, srb, 0);
696 		usb_stor_dbg(us, "START_STOP\n");
701 		rc = datafab_id_device(us, info);
712 	usb_stor_dbg(us, "Gah! Unknown command: %d (0x%x)\n",
725 	struct us_data *us;
728 	result = usb_stor_probe1(&us, intf, id,
734 	us->transport_name  = "Datafab Bulk-Only";
735 	us->transport = datafab_transport;
736 	us->transport_reset = usb_stor_Bulk_reset;
737 	us->max_lun = 1;
739 	result = usb_stor_probe2(us);