1 // SPDX-License-Identifier: GPL-2.0
2 /* Driver for Microtek Scanmaker X6 USB scanner, and possibly others.
4 * (C) Copyright 2000 John Fremlin <vii@penguinpowered.com>
5 * (C) Copyright 2000 Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de>
7 * Parts shamelessly stolen from usb-storage and copyright by their
8 * authors. Thanks to Matt Dharm for giving us permission!
10 * This driver implements a SCSI host controller driver and a USB
11 * device driver. To avoid confusion, all the USB related stuff is
12 * prefixed by mts_usb_ and all the SCSI stuff by mts_scsi_.
14 * Microtek (www.microtek.com) did not release the specifications for
15 * their USB protocol to us, so we had to reverse engineer them. We
16 * don't know for which models they are valid.
18 * The X6 USB has three bulk endpoints, one output (0x1) down which
19 * commands and outgoing data are sent, and two input: 0x82 from which
20 * normal data is read from the scanner (in packets of maximum 32
21 * bytes) and from which the status byte is read, and 0x83 from which
22 * the results of a scan (or preview) are read in up to 64 * 1024 byte
23 * chunks by the Windows driver. We don't know how much it is possible
24 * to read at a time from 0x83.
26 * It seems possible to read (with URB transfers) everything from 0x82
27 * in one go, without bothering to read in 32 byte chunks.
29 * There seems to be an optimisation of a further READ implicit if
30 * you simply read from 0x83.
34 * Send raw SCSI command to EP 0x1
36 * If there is data to receive:
37 * If the command was READ datatype=image:
38 * Read a lot of data from EP 0x83
40 * Read data from EP 0x82
42 * If there is data to transmit:
45 * Read status byte from EP 0x82
49 * The SCSI command set for the scanner is available from
50 * ftp://ftp.microtek.com/microtek/devpack/
52 * Microtek NV sent us a more up to date version of the document. If
53 * you want it, just send mail.
57 * Untested with multiple scanners.
59 * Untested on a bigendian machine.
63 * 20000417 starting history
64 * 20000417 fixed load oops
65 * 20000417 fixed unload oops
66 * 20000419 fixed READ IMAGE detection
67 * 20000424 started conversion to use URBs
68 * 20000502 handled short transfers as errors
69 * 20000513 rename and organisation of functions (john)
70 * 20000513 added IDs for all products supported by Windows driver (john)
71 * 20000514 Rewrote mts_scsi_queuecommand to use URBs (john)
72 * 20000514 Version 0.0.8j
73 * 20000514 Fix reporting of non-existent devices to SCSI layer (john)
74 * 20000514 Added MTS_DEBUG_INT (john)
75 * 20000514 Changed "usb-microtek" to "microtek" for consistency (john)
76 * 20000514 Stupid bug fixes (john)
77 * 20000514 Version 0.0.9j
78 * 20000515 Put transfer context and URB in mts_desc (john)
79 * 20000515 Added prelim turn off debugging support (john)
80 * 20000515 Version 0.0.10j
81 * 20000515 Fixed up URB allocation (clear URB on alloc) (john)
82 * 20000515 Version 0.0.11j
83 * 20000516 Removed unnecessary spinlock in mts_transfer_context (john)
84 * 20000516 Removed unnecessary up on instance lock in mts_remove_nolock (john)
85 * 20000516 Implemented (badly) scsi_abort (john)
86 * 20000516 Version 0.0.12j
87 * 20000517 Hopefully removed mts_remove_nolock quasideadlock (john)
88 * 20000517 Added mts_debug_dump to print ll USB info (john)
89 * 20000518 Tweaks and documentation updates (john)
90 * 20000518 Version 0.0.13j
91 * 20000518 Cleaned up abort handling (john)
92 * 20000523 Removed scsi_command and various scsi_..._resets (john)
93 * 20000523 Added unlink URB on scsi_abort, now OHCI supports it (john)
94 * 20000523 Fixed last tiresome compile warning (john)
95 * 20000523 Version 0.0.14j (though version 0.1 has come out?)
96 * 20000602 Added primitive reset
97 * 20000602 Version 0.2.0
98 * 20000603 various cosmetic changes
99 * 20000603 Version 0.2.1
100 * 20000620 minor cosmetic changes
101 * 20000620 Version 0.2.2
102 * 20000822 Hopefully fixed deadlock in mts_remove_nolock()
103 * 20000822 Fixed minor race in mts_transfer_cleanup()
104 * 20000822 Fixed deadlock on submission error in queuecommand
105 * 20000822 Version 0.2.3
106 * 20000913 Reduced module size if debugging is off
107 * 20000913 Version 0.2.4
108 * 20010210 New abort logic
109 * 20010210 Version 0.3.0
110 * 20010217 Merged scatter/gather
111 * 20010218 Version 0.4.0
112 * 20010218 Cosmetic fixes
113 * 20010218 Version 0.4.1
114 * 20010306 Abort while using scatter/gather
115 * 20010306 Version 0.4.2
116 * 20010311 Remove all timeouts and tidy up generally (john)
117 * 20010320 check return value of scsi_register()
118 * 20010320 Version 0.4.3
119 * 20010408 Identify version on module load.
120 * 20011003 Fix multiple requests
123 #include <linux/module.h>
124 #include <linux/kernel.h>
125 #include <linux/signal.h>
126 #include <linux/errno.h>
127 #include <linux/random.h>
128 #include <linux/poll.h>
129 #include <linux/slab.h>
130 #include <linux/spinlock.h>
131 #include <linux/usb.h>
132 #include <linux/proc_fs.h>
134 #include <linux/atomic.h>
135 #include <linux/blkdev.h>
136 #include "../../scsi/scsi.h"
137 #include <scsi/scsi_host.h>
139 #include "microtek.h"
141 #define DRIVER_AUTHOR "John Fremlin <vii@penguinpowered.com>, Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de>"
142 #define DRIVER_DESC "Microtek Scanmaker X6 USB scanner driver"
144 /* Should we do debugging? */
146 //#define MTS_DO_DEBUG
148 /* USB layer driver interface */
150 static int mts_usb_probe(struct usb_interface *intf,
151 const struct usb_device_id *id);
152 static void mts_usb_disconnect(struct usb_interface *intf);
154 static const struct usb_device_id mts_usb_ids[];
156 static struct usb_driver mts_usb_driver = {
157 .name = "microtekX6",
158 .probe = mts_usb_probe,
159 .disconnect = mts_usb_disconnect,
160 .id_table = mts_usb_ids,
164 /* Internal driver stuff */
166 #define MTS_VERSION "0.4.3"
167 #define MTS_NAME "microtek usb (rev " MTS_VERSION "): "
169 #define MTS_WARNING(x...) \
170 printk( KERN_WARNING MTS_NAME x )
171 #define MTS_ERROR(x...) \
172 printk( KERN_ERR MTS_NAME x )
173 #define MTS_INT_ERROR(x...) \
175 #define MTS_MESSAGE(x...) \
176 printk( KERN_INFO MTS_NAME x )
178 #if defined MTS_DO_DEBUG
180 #define MTS_DEBUG(x...) \
181 printk( KERN_DEBUG MTS_NAME x )
183 #define MTS_DEBUG_GOT_HERE() \
184 MTS_DEBUG("got to %s:%d (%s)\n", __FILE__, (int)__LINE__, __func__ )
185 #define MTS_DEBUG_INT() \
186 do { MTS_DEBUG_GOT_HERE(); \
187 MTS_DEBUG("transfer = 0x%x context = 0x%x\n",(int)transfer,(int)context ); \
188 MTS_DEBUG("status = 0x%x data-length = 0x%x sent = 0x%x\n",transfer->status,(int)context->data_length, (int)transfer->actual_length ); \
189 mts_debug_dump(context->instance);\
193 #define MTS_NUL_STATEMENT do { } while(0)
195 #define MTS_DEBUG(x...) MTS_NUL_STATEMENT
196 #define MTS_DEBUG_GOT_HERE() MTS_NUL_STATEMENT
197 #define MTS_DEBUG_INT() MTS_NUL_STATEMENT
203 #define MTS_INT_INIT()\
204 struct mts_transfer_context* context = (struct mts_transfer_context*)transfer->context; \
209 static inline void mts_debug_dump(struct mts_desc* desc) {
210 MTS_DEBUG("desc at 0x%x: toggle = %02x%02x\n",
212 (int)desc->usb_dev->toggle[1],(int)desc->usb_dev->toggle[0]
214 MTS_DEBUG("ep_out=%x ep_response=%x ep_image=%x\n",
215 usb_sndbulkpipe(desc->usb_dev,desc->ep_out),
216 usb_rcvbulkpipe(desc->usb_dev,desc->ep_response),
217 usb_rcvbulkpipe(desc->usb_dev,desc->ep_image)
222 static inline void mts_show_command(struct scsi_cmnd *srb)
226 switch (srb->cmnd[0]) {
227 case TEST_UNIT_READY: what = "TEST_UNIT_READY"; break;
228 case REZERO_UNIT: what = "REZERO_UNIT"; break;
229 case REQUEST_SENSE: what = "REQUEST_SENSE"; break;
230 case FORMAT_UNIT: what = "FORMAT_UNIT"; break;
231 case READ_BLOCK_LIMITS: what = "READ_BLOCK_LIMITS"; break;
232 case REASSIGN_BLOCKS: what = "REASSIGN_BLOCKS"; break;
233 case READ_6: what = "READ_6"; break;
234 case WRITE_6: what = "WRITE_6"; break;
235 case SEEK_6: what = "SEEK_6"; break;
236 case READ_REVERSE: what = "READ_REVERSE"; break;
237 case WRITE_FILEMARKS: what = "WRITE_FILEMARKS"; break;
238 case SPACE: what = "SPACE"; break;
239 case INQUIRY: what = "INQUIRY"; break;
240 case RECOVER_BUFFERED_DATA: what = "RECOVER_BUFFERED_DATA"; break;
241 case MODE_SELECT: what = "MODE_SELECT"; break;
242 case RESERVE: what = "RESERVE"; break;
243 case RELEASE: what = "RELEASE"; break;
244 case COPY: what = "COPY"; break;
245 case ERASE: what = "ERASE"; break;
246 case MODE_SENSE: what = "MODE_SENSE"; break;
247 case START_STOP: what = "START_STOP"; break;
248 case RECEIVE_DIAGNOSTIC: what = "RECEIVE_DIAGNOSTIC"; break;
249 case SEND_DIAGNOSTIC: what = "SEND_DIAGNOSTIC"; break;
250 case ALLOW_MEDIUM_REMOVAL: what = "ALLOW_MEDIUM_REMOVAL"; break;
251 case SET_WINDOW: what = "SET_WINDOW"; break;
252 case READ_CAPACITY: what = "READ_CAPACITY"; break;
253 case READ_10: what = "READ_10"; break;
254 case WRITE_10: what = "WRITE_10"; break;
255 case SEEK_10: what = "SEEK_10"; break;
256 case WRITE_VERIFY: what = "WRITE_VERIFY"; break;
257 case VERIFY: what = "VERIFY"; break;
258 case SEARCH_HIGH: what = "SEARCH_HIGH"; break;
259 case SEARCH_EQUAL: what = "SEARCH_EQUAL"; break;
260 case SEARCH_LOW: what = "SEARCH_LOW"; break;
261 case SET_LIMITS: what = "SET_LIMITS"; break;
262 case READ_POSITION: what = "READ_POSITION"; break;
263 case SYNCHRONIZE_CACHE: what = "SYNCHRONIZE_CACHE"; break;
264 case LOCK_UNLOCK_CACHE: what = "LOCK_UNLOCK_CACHE"; break;
265 case READ_DEFECT_DATA: what = "READ_DEFECT_DATA"; break;
266 case MEDIUM_SCAN: what = "MEDIUM_SCAN"; break;
267 case COMPARE: what = "COMPARE"; break;
268 case COPY_VERIFY: what = "COPY_VERIFY"; break;
269 case WRITE_BUFFER: what = "WRITE_BUFFER"; break;
270 case READ_BUFFER: what = "READ_BUFFER"; break;
271 case UPDATE_BLOCK: what = "UPDATE_BLOCK"; break;
272 case READ_LONG: what = "READ_LONG"; break;
273 case WRITE_LONG: what = "WRITE_LONG"; break;
274 case CHANGE_DEFINITION: what = "CHANGE_DEFINITION"; break;
275 case WRITE_SAME: what = "WRITE_SAME"; break;
276 case READ_TOC: what = "READ_TOC"; break;
277 case LOG_SELECT: what = "LOG_SELECT"; break;
278 case LOG_SENSE: what = "LOG_SENSE"; break;
279 case MODE_SELECT_10: what = "MODE_SELECT_10"; break;
280 case MODE_SENSE_10: what = "MODE_SENSE_10"; break;
281 case MOVE_MEDIUM: what = "MOVE_MEDIUM"; break;
282 case READ_12: what = "READ_12"; break;
283 case WRITE_12: what = "WRITE_12"; break;
284 case WRITE_VERIFY_12: what = "WRITE_VERIFY_12"; break;
285 case SEARCH_HIGH_12: what = "SEARCH_HIGH_12"; break;
286 case SEARCH_EQUAL_12: what = "SEARCH_EQUAL_12"; break;
287 case SEARCH_LOW_12: what = "SEARCH_LOW_12"; break;
288 case READ_ELEMENT_STATUS: what = "READ_ELEMENT_STATUS"; break;
289 case SEND_VOLUME_TAG: what = "SEND_VOLUME_TAG"; break;
290 case WRITE_LONG_2: what = "WRITE_LONG_2"; break;
292 MTS_DEBUG("can't decode command\n");
296 MTS_DEBUG( "Command %s (%d bytes)\n", what, srb->cmd_len);
299 MTS_DEBUG( " %10ph\n", srb->cmnd);
304 static inline void mts_show_command(struct scsi_cmnd * dummy)
308 static inline void mts_debug_dump(struct mts_desc* dummy)
314 static inline void mts_urb_abort(struct mts_desc* desc) {
315 MTS_DEBUG_GOT_HERE();
316 mts_debug_dump(desc);
318 usb_kill_urb( desc->urb );
321 static int mts_slave_alloc (struct scsi_device *s)
323 s->inquiry_len = 0x24;
327 static int mts_slave_configure (struct scsi_device *s)
329 blk_queue_dma_alignment(s->request_queue, (512 - 1));
333 static int mts_scsi_abort(struct scsi_cmnd *srb)
335 struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
337 MTS_DEBUG_GOT_HERE();
344 static int mts_scsi_host_reset(struct scsi_cmnd *srb)
346 struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
349 MTS_DEBUG_GOT_HERE();
350 mts_debug_dump(desc);
352 result = usb_lock_device_for_reset(desc->usb_dev, desc->usb_intf);
354 result = usb_reset_device(desc->usb_dev);
355 usb_unlock_device(desc->usb_dev);
357 return result ? FAILED : SUCCESS;
361 mts_scsi_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *srb);
363 static void mts_transfer_cleanup( struct urb *transfer );
364 static void mts_do_sg(struct urb * transfer);
367 void mts_int_submit_urb (struct urb* transfer,
371 usb_complete_t callback )
372 /* Interrupt context! */
374 /* Holding transfer->context->lock! */
380 usb_fill_bulk_urb(transfer,
381 context->instance->usb_dev,
389 res = usb_submit_urb( transfer, GFP_ATOMIC );
390 if ( unlikely(res) ) {
391 MTS_INT_ERROR( "could not submit URB! Error was %d\n",(int)res );
392 set_host_byte(context->srb, DID_ERROR);
393 mts_transfer_cleanup(transfer);
398 static void mts_transfer_cleanup( struct urb *transfer )
399 /* Interrupt context! */
403 if ( likely(context->final_callback != NULL) )
404 context->final_callback(context->srb);
407 static void mts_transfer_done( struct urb *transfer )
411 context->srb->result &= MTS_SCSI_ERR_MASK;
412 context->srb->result |= (unsigned)(*context->scsi_status)<<1;
414 mts_transfer_cleanup(transfer);
418 static void mts_get_status( struct urb *transfer )
419 /* Interrupt context! */
423 mts_int_submit_urb(transfer,
424 usb_rcvbulkpipe(context->instance->usb_dev,
425 context->instance->ep_response),
426 context->scsi_status,
431 static void mts_data_done( struct urb* transfer )
432 /* Interrupt context! */
434 int status = transfer->status;
437 if ( context->data_length != transfer->actual_length ) {
438 scsi_set_resid(context->srb, context->data_length -
439 transfer->actual_length);
440 } else if ( unlikely(status) ) {
441 set_host_byte(context->srb, (status == -ENOENT ? DID_ABORT : DID_ERROR));
444 mts_get_status(transfer);
448 static void mts_command_done( struct urb *transfer )
449 /* Interrupt context! */
451 int status = transfer->status;
454 if ( unlikely(status) ) {
455 if (status == -ENOENT) {
456 /* We are being killed */
457 MTS_DEBUG_GOT_HERE();
458 set_host_byte(context->srb, DID_ABORT);
460 /* A genuine error has occurred */
461 MTS_DEBUG_GOT_HERE();
463 set_host_byte(context->srb, DID_ERROR);
465 mts_transfer_cleanup(transfer);
470 if (context->srb->cmnd[0] == REQUEST_SENSE) {
471 mts_int_submit_urb(transfer,
473 context->srb->sense_buffer,
474 context->data_length,
476 } else { if ( context->data ) {
477 mts_int_submit_urb(transfer,
480 context->data_length,
481 scsi_sg_count(context->srb) > 1 ?
482 mts_do_sg : mts_data_done);
484 mts_get_status(transfer);
489 static void mts_do_sg (struct urb* transfer)
491 int status = transfer->status;
494 MTS_DEBUG("Processing fragment %d of %d\n", context->fragment,
495 scsi_sg_count(context->srb));
497 if (unlikely(status)) {
498 set_host_byte(context->srb, (status == -ENOENT ? DID_ABORT : DID_ERROR));
499 mts_transfer_cleanup(transfer);
502 context->curr_sg = sg_next(context->curr_sg);
503 mts_int_submit_urb(transfer,
505 sg_virt(context->curr_sg),
506 context->curr_sg->length,
507 sg_is_last(context->curr_sg) ?
508 mts_data_done : mts_do_sg);
511 static const u8 mts_read_image_sig[] = { 0x28, 00, 00, 00 };
512 static const u8 mts_read_image_sig_len = 4;
513 static const unsigned char mts_direction[256/8] = {
514 0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
515 0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
516 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
517 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
521 #define MTS_DIRECTION_IS_IN(x) ((mts_direction[x>>3] >> (x & 7)) & 1)
524 mts_build_transfer_context(struct scsi_cmnd *srb, struct mts_desc* desc)
528 MTS_DEBUG_GOT_HERE();
530 desc->context.instance = desc;
531 desc->context.srb = srb;
533 if (!scsi_bufflen(srb)) {
534 desc->context.data = NULL;
535 desc->context.data_length = 0;
538 desc->context.curr_sg = scsi_sglist(srb);
539 desc->context.data = sg_virt(desc->context.curr_sg);
540 desc->context.data_length = desc->context.curr_sg->length;
544 /* can't rely on srb->sc_data_direction */
546 /* Brutally ripped from usb-storage */
548 if ( !memcmp( srb->cmnd, mts_read_image_sig, mts_read_image_sig_len )
549 ) { pipe = usb_rcvbulkpipe(desc->usb_dev,desc->ep_image);
550 MTS_DEBUG( "transferring from desc->ep_image == %d\n",
551 (int)desc->ep_image );
552 } else if ( MTS_DIRECTION_IS_IN(srb->cmnd[0]) ) {
553 pipe = usb_rcvbulkpipe(desc->usb_dev,desc->ep_response);
554 MTS_DEBUG( "transferring from desc->ep_response == %d\n",
555 (int)desc->ep_response);
557 MTS_DEBUG("transferring to desc->ep_out == %d\n",
559 pipe = usb_sndbulkpipe(desc->usb_dev,desc->ep_out);
561 desc->context.data_pipe = pipe;
566 mts_scsi_queuecommand_lck(struct scsi_cmnd *srb, mts_scsi_cmnd_callback callback)
568 struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
571 MTS_DEBUG_GOT_HERE();
572 mts_show_command(srb);
573 mts_debug_dump(desc);
575 if ( srb->device->lun || srb->device->id || srb->device->channel ) {
577 MTS_DEBUG("Command to LUN=%d ID=%d CHANNEL=%d from SCSI layer\n",(int)srb->device->lun,(int)srb->device->id, (int)srb->device->channel );
579 MTS_DEBUG("this device doesn't exist\n");
581 set_host_byte(srb, DID_BAD_TARGET);
583 if(likely(callback != NULL))
590 usb_fill_bulk_urb(desc->urb,
592 usb_sndbulkpipe(desc->usb_dev,desc->ep_out),
600 mts_build_transfer_context( srb, desc );
601 desc->context.final_callback = callback;
603 /* here we need ATOMIC as we are called with the iolock */
604 res=usb_submit_urb(desc->urb, GFP_ATOMIC);
607 MTS_ERROR("error %d submitting URB\n",(int)res);
608 set_host_byte(srb, DID_ERROR);
610 if(likely(callback != NULL))
618 static DEF_SCSI_QCMD(mts_scsi_queuecommand)
620 static struct scsi_host_template mts_scsi_host_template = {
621 .module = THIS_MODULE,
622 .name = "microtekX6",
623 .proc_name = "microtekX6",
624 .queuecommand = mts_scsi_queuecommand,
625 .eh_abort_handler = mts_scsi_abort,
626 .eh_host_reset_handler = mts_scsi_host_reset,
627 .sg_tablesize = SG_ALL,
631 .slave_alloc = mts_slave_alloc,
632 .slave_configure = mts_slave_configure,
633 .max_sectors= 256, /* 128 K */
636 /* The entries of microtek_table must correspond, line-by-line to
637 the entries of mts_supported_products[]. */
639 static const struct usb_device_id mts_usb_ids[] =
641 { USB_DEVICE(0x4ce, 0x0300) },
642 { USB_DEVICE(0x5da, 0x0094) },
643 { USB_DEVICE(0x5da, 0x0099) },
644 { USB_DEVICE(0x5da, 0x009a) },
645 { USB_DEVICE(0x5da, 0x00a0) },
646 { USB_DEVICE(0x5da, 0x00a3) },
647 { USB_DEVICE(0x5da, 0x80a3) },
648 { USB_DEVICE(0x5da, 0x80ac) },
649 { USB_DEVICE(0x5da, 0x00b6) },
650 { } /* Terminating entry */
653 MODULE_DEVICE_TABLE (usb, mts_usb_ids);
656 static int mts_usb_probe(struct usb_interface *intf,
657 const struct usb_device_id *id)
661 int ep_in_set[3]; /* this will break if we have more than three endpoints
662 which is why we check */
663 int *ep_in_current = ep_in_set;
664 int err_retval = -ENOMEM;
666 struct mts_desc * new_desc;
667 struct usb_device *dev = interface_to_usbdev (intf);
669 /* the current altsetting on the interface we're probing */
670 struct usb_host_interface *altsetting;
672 MTS_DEBUG_GOT_HERE();
673 MTS_DEBUG( "usb-device descriptor at %x\n", (int)dev );
675 MTS_DEBUG( "product id = 0x%x, vendor id = 0x%x\n",
676 le16_to_cpu(dev->descriptor.idProduct),
677 le16_to_cpu(dev->descriptor.idVendor) );
679 MTS_DEBUG_GOT_HERE();
681 /* the current altsetting on the interface we're probing */
682 altsetting = intf->cur_altsetting;
685 /* Check if the config is sane */
687 if ( altsetting->desc.bNumEndpoints != MTS_EP_TOTAL ) {
688 MTS_WARNING( "expecting %d got %d endpoints! Bailing out.\n",
689 (int)MTS_EP_TOTAL, (int)altsetting->desc.bNumEndpoints );
693 for( i = 0; i < altsetting->desc.bNumEndpoints; i++ ) {
694 if ((altsetting->endpoint[i].desc.bmAttributes &
695 USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK) {
697 MTS_WARNING( "can only deal with bulk endpoints; endpoint %d is not bulk.\n",
698 (int)altsetting->endpoint[i].desc.bEndpointAddress );
700 if (altsetting->endpoint[i].desc.bEndpointAddress &
703 = altsetting->endpoint[i].desc.bEndpointAddress &
704 USB_ENDPOINT_NUMBER_MASK;
706 if ( ep_out != -1 ) {
707 MTS_WARNING( "can only deal with one output endpoints. Bailing out." );
711 ep_out = altsetting->endpoint[i].desc.bEndpointAddress &
712 USB_ENDPOINT_NUMBER_MASK;
718 if (ep_in_current != &ep_in_set[2]) {
719 MTS_WARNING("couldn't find two input bulk endpoints. Bailing out.\n");
723 if ( ep_out == -1 ) {
724 MTS_WARNING( "couldn't find an output bulk endpoint. Bailing out.\n" );
729 new_desc = kzalloc(sizeof(struct mts_desc), GFP_KERNEL);
733 new_desc->urb = usb_alloc_urb(0, GFP_KERNEL);
737 new_desc->context.scsi_status = kmalloc(1, GFP_KERNEL);
738 if (!new_desc->context.scsi_status)
741 new_desc->usb_dev = dev;
742 new_desc->usb_intf = intf;
745 new_desc->ep_out = ep_out;
746 new_desc->ep_response = ep_in_set[0];
747 new_desc->ep_image = ep_in_set[1];
749 if ( new_desc->ep_out != MTS_EP_OUT )
750 MTS_WARNING( "will this work? Command EP is not usually %d\n",
751 (int)new_desc->ep_out );
753 if ( new_desc->ep_response != MTS_EP_RESPONSE )
754 MTS_WARNING( "will this work? Response EP is not usually %d\n",
755 (int)new_desc->ep_response );
757 if ( new_desc->ep_image != MTS_EP_IMAGE )
758 MTS_WARNING( "will this work? Image data EP is not usually %d\n",
759 (int)new_desc->ep_image );
761 new_desc->host = scsi_host_alloc(&mts_scsi_host_template,
766 new_desc->host->hostdata[0] = (unsigned long)new_desc;
767 if (scsi_add_host(new_desc->host, &dev->dev)) {
771 scsi_scan_host(new_desc->host);
773 usb_set_intfdata(intf, new_desc);
777 scsi_host_put(new_desc->host);
779 kfree(new_desc->context.scsi_status);
781 usb_free_urb(new_desc->urb);
788 static void mts_usb_disconnect (struct usb_interface *intf)
790 struct mts_desc *desc = usb_get_intfdata(intf);
792 usb_set_intfdata(intf, NULL);
794 usb_kill_urb(desc->urb);
795 scsi_remove_host(desc->host);
797 scsi_host_put(desc->host);
798 usb_free_urb(desc->urb);
799 kfree(desc->context.scsi_status);
803 module_usb_driver(mts_usb_driver);
805 MODULE_AUTHOR( DRIVER_AUTHOR );
806 MODULE_DESCRIPTION( DRIVER_DESC );
807 MODULE_LICENSE("GPL");