1 /* Driver for Microtek Scanmaker X6 USB scanner, and possibly others.
6 * Parts shamelessly stolen from usb-storage and copyright by their
7 * authors. Thanks to Matt Dharm for giving us permission!
9 * This driver implements a SCSI host controller driver and a USB
10 * device driver. To avoid confusion, all the USB related stuff is
11 * prefixed by mts_usb_ and all the SCSI stuff by mts_scsi_.
13 * Microtek (www.microtek.com) did not release the specifications for
14 * their USB protocol to us, so we had to reverse engineer them. We
15 * don't know for which models they are valid.
17 * The X6 USB has three bulk endpoints, one output (0x1) down which
18 * commands and outgoing data are sent, and two input: 0x82 from which
19 * normal data is read from the scanner (in packets of maximum 32
20 * bytes) and from which the status byte is read, and 0x83 from which
21 * the results of a scan (or preview) are read in up to 64 * 1024 byte
22 * chunks by the Windows driver. We don't know how much it is possible
23 * to read at a time from 0x83.
25 * It seems possible to read (with URB transfers) everything from 0x82
26 * in one go, without bothering to read in 32 byte chunks.
28 * There seems to be an optimisation of a further READ implicit if
29 * you simply read from 0x83.
33 * Send raw SCSI command to EP 0x1
35 * If there is data to receive:
36 * If the command was READ datatype=image:
37 * Read a lot of data from EP 0x83
39 * Read data from EP 0x82
41 * If there is data to transmit:
44 * Read status byte from EP 0x82
48 * The SCSI command set for the scanner is available from
49 * ftp://ftp.microtek.com/microtek/devpack/
51 * Microtek NV sent us a more up to date version of the document. If
52 * you want it, just send mail.
56 * Untested with multiple scanners.
58 * Untested on a bigendian machine.
62 * 20000417 starting history
63 * 20000417 fixed load oops
64 * 20000417 fixed unload oops
65 * 20000419 fixed READ IMAGE detection
66 * 20000424 started conversion to use URBs
67 * 20000502 handled short transfers as errors
68 * 20000513 rename and organisation of functions (john)
69 * 20000513 added IDs for all products supported by Windows driver (john)
70 * 20000514 Rewrote mts_scsi_queuecommand to use URBs (john)
71 * 20000514 Version 0.0.8j
72 * 20000514 Fix reporting of non-existent devices to SCSI layer (john)
73 * 20000514 Added MTS_DEBUG_INT (john)
74 * 20000514 Changed "usb-microtek" to "microtek" for consistency (john)
75 * 20000514 Stupid bug fixes (john)
76 * 20000514 Version 0.0.9j
77 * 20000515 Put transfer context and URB in mts_desc (john)
78 * 20000515 Added prelim turn off debugging support (john)
79 * 20000515 Version 0.0.10j
80 * 20000515 Fixed up URB allocation (clear URB on alloc) (john)
81 * 20000515 Version 0.0.11j
82 * 20000516 Removed unnecessary spinlock in mts_transfer_context (john)
83 * 20000516 Removed unnecessary up on instance lock in mts_remove_nolock (john)
84 * 20000516 Implemented (badly) scsi_abort (john)
85 * 20000516 Version 0.0.12j
86 * 20000517 Hopefully removed mts_remove_nolock quasideadlock (john)
87 * 20000517 Added mts_debug_dump to print ll USB info (john)
88 * 20000518 Tweaks and documentation updates (john)
89 * 20000518 Version 0.0.13j
90 * 20000518 Cleaned up abort handling (john)
91 * 20000523 Removed scsi_command and various scsi_..._resets (john)
92 * 20000523 Added unlink URB on scsi_abort, now OHCI supports it (john)
93 * 20000523 Fixed last tiresome compile warning (john)
94 * 20000523 Version 0.0.14j (though version 0.1 has come out?)
95 * 20000602 Added primitive reset
96 * 20000602 Version 0.2.0
97 * 20000603 various cosmetic changes
98 * 20000603 Version 0.2.1
99 * 20000620 minor cosmetic changes
100 * 20000620 Version 0.2.2
101 * 20000822 Hopefully fixed deadlock in mts_remove_nolock()
102 * 20000822 Fixed minor race in mts_transfer_cleanup()
103 * 20000822 Fixed deadlock on submission error in queuecommand
104 * 20000822 Version 0.2.3
105 * 20000913 Reduced module size if debugging is off
106 * 20000913 Version 0.2.4
107 * 20010210 New abort logic
108 * 20010210 Version 0.3.0
109 * 20010217 Merged scatter/gather
110 * 20010218 Version 0.4.0
111 * 20010218 Cosmetic fixes
112 * 20010218 Version 0.4.1
113 * 20010306 Abort while using scatter/gather
114 * 20010306 Version 0.4.2
115 * 20010311 Remove all timeouts and tidy up generally (john)
116 * 20010320 check return value of scsi_register()
117 * 20010320 Version 0.4.3
118 * 20010408 Identify version on module load.
119 * 20011003 Fix multiple requests
122 #include <linux/module.h>
123 #include <linux/kernel.h>
124 #include <linux/signal.h>
125 #include <linux/errno.h>
126 #include <linux/random.h>
127 #include <linux/poll.h>
128 #include <linux/slab.h>
129 #include <linux/spinlock.h>
130 #include <linux/usb.h>
131 #include <linux/proc_fs.h>
133 #include <linux/atomic.h>
134 #include <linux/blkdev.h>
135 #include "../../scsi/scsi.h"
136 #include <scsi/scsi_host.h>
138 #include "microtek.h"
141 * Version Information
143 #define DRIVER_VERSION "v0.4.3"
145 #define DRIVER_DESC "Microtek Scanmaker X6 USB scanner driver"
147 /* Should we do debugging? */
149 //#define MTS_DO_DEBUG
151 /* USB layer driver interface */
153 static int mts_usb_probe(struct usb_interface *intf,
154 const struct usb_device_id *id);
155 static void mts_usb_disconnect(struct usb_interface *intf);
157 static const struct usb_device_id mts_usb_ids[];
159 static struct usb_driver mts_usb_driver = {
160 .name = "microtekX6",
161 .probe = mts_usb_probe,
162 .disconnect = mts_usb_disconnect,
163 .id_table = mts_usb_ids,
167 /* Internal driver stuff */
169 #define MTS_VERSION "0.4.3"
170 #define MTS_NAME "microtek usb (rev " MTS_VERSION "): "
172 #define MTS_WARNING(x...) \
173 printk( KERN_WARNING MTS_NAME x )
174 #define MTS_ERROR(x...) \
175 printk( KERN_ERR MTS_NAME x )
176 #define MTS_INT_ERROR(x...) \
178 #define MTS_MESSAGE(x...) \
179 printk( KERN_INFO MTS_NAME x )
181 #if defined MTS_DO_DEBUG
183 #define MTS_DEBUG(x...) \
184 printk( KERN_DEBUG MTS_NAME x )
186 #define MTS_DEBUG_GOT_HERE() \
187 MTS_DEBUG("got to %s:%d (%s)\n", __FILE__, (int)__LINE__, __func__ )
188 #define MTS_DEBUG_INT() \
189 do { MTS_DEBUG_GOT_HERE(); \
190 MTS_DEBUG("transfer = 0x%x context = 0x%x\n",(int)transfer,(int)context ); \
191 MTS_DEBUG("status = 0x%x data-length = 0x%x sent = 0x%x\n",transfer->status,(int)context->data_length, (int)transfer->actual_length ); \
192 mts_debug_dump(context->instance);\
196 #define MTS_NUL_STATEMENT do { } while(0)
198 #define MTS_DEBUG(x...) MTS_NUL_STATEMENT
199 #define MTS_DEBUG_GOT_HERE() MTS_NUL_STATEMENT
200 #define MTS_DEBUG_INT() MTS_NUL_STATEMENT
206 #define MTS_INT_INIT()\
207 struct mts_transfer_context* context = (struct mts_transfer_context*)transfer->context; \
212 static inline void mts_debug_dump(struct mts_desc* desc) {
213 MTS_DEBUG("desc at 0x%x: toggle = %02x%02x\n",
215 (int)desc->usb_dev->toggle[1],(int)desc->usb_dev->toggle[0]
217 MTS_DEBUG("ep_out=%x ep_response=%x ep_image=%x\n",
218 usb_sndbulkpipe(desc->usb_dev,desc->ep_out),
219 usb_rcvbulkpipe(desc->usb_dev,desc->ep_response),
220 usb_rcvbulkpipe(desc->usb_dev,desc->ep_image)
225 static inline void mts_show_command(struct scsi_cmnd *srb)
229 switch (srb->cmnd[0]) {
230 case TEST_UNIT_READY: what = "TEST_UNIT_READY"; break;
231 case REZERO_UNIT: what = "REZERO_UNIT"; break;
232 case REQUEST_SENSE: what = "REQUEST_SENSE"; break;
233 case FORMAT_UNIT: what = "FORMAT_UNIT"; break;
234 case READ_BLOCK_LIMITS: what = "READ_BLOCK_LIMITS"; break;
235 case REASSIGN_BLOCKS: what = "REASSIGN_BLOCKS"; break;
236 case READ_6: what = "READ_6"; break;
237 case WRITE_6: what = "WRITE_6"; break;
238 case SEEK_6: what = "SEEK_6"; break;
239 case READ_REVERSE: what = "READ_REVERSE"; break;
240 case WRITE_FILEMARKS: what = "WRITE_FILEMARKS"; break;
241 case SPACE: what = "SPACE"; break;
242 case INQUIRY: what = "INQUIRY"; break;
243 case RECOVER_BUFFERED_DATA: what = "RECOVER_BUFFERED_DATA"; break;
244 case MODE_SELECT: what = "MODE_SELECT"; break;
245 case RESERVE: what = "RESERVE"; break;
246 case RELEASE: what = "RELEASE"; break;
247 case COPY: what = "COPY"; break;
248 case ERASE: what = "ERASE"; break;
249 case MODE_SENSE: what = "MODE_SENSE"; break;
250 case START_STOP: what = "START_STOP"; break;
251 case RECEIVE_DIAGNOSTIC: what = "RECEIVE_DIAGNOSTIC"; break;
252 case SEND_DIAGNOSTIC: what = "SEND_DIAGNOSTIC"; break;
253 case ALLOW_MEDIUM_REMOVAL: what = "ALLOW_MEDIUM_REMOVAL"; break;
254 case SET_WINDOW: what = "SET_WINDOW"; break;
255 case READ_CAPACITY: what = "READ_CAPACITY"; break;
256 case READ_10: what = "READ_10"; break;
257 case WRITE_10: what = "WRITE_10"; break;
258 case SEEK_10: what = "SEEK_10"; break;
259 case WRITE_VERIFY: what = "WRITE_VERIFY"; break;
260 case VERIFY: what = "VERIFY"; break;
261 case SEARCH_HIGH: what = "SEARCH_HIGH"; break;
262 case SEARCH_EQUAL: what = "SEARCH_EQUAL"; break;
263 case SEARCH_LOW: what = "SEARCH_LOW"; break;
264 case SET_LIMITS: what = "SET_LIMITS"; break;
265 case READ_POSITION: what = "READ_POSITION"; break;
266 case SYNCHRONIZE_CACHE: what = "SYNCHRONIZE_CACHE"; break;
267 case LOCK_UNLOCK_CACHE: what = "LOCK_UNLOCK_CACHE"; break;
268 case READ_DEFECT_DATA: what = "READ_DEFECT_DATA"; break;
269 case MEDIUM_SCAN: what = "MEDIUM_SCAN"; break;
270 case COMPARE: what = "COMPARE"; break;
271 case COPY_VERIFY: what = "COPY_VERIFY"; break;
272 case WRITE_BUFFER: what = "WRITE_BUFFER"; break;
273 case READ_BUFFER: what = "READ_BUFFER"; break;
274 case UPDATE_BLOCK: what = "UPDATE_BLOCK"; break;
275 case READ_LONG: what = "READ_LONG"; break;
276 case WRITE_LONG: what = "WRITE_LONG"; break;
277 case CHANGE_DEFINITION: what = "CHANGE_DEFINITION"; break;
278 case WRITE_SAME: what = "WRITE_SAME"; break;
279 case READ_TOC: what = "READ_TOC"; break;
280 case LOG_SELECT: what = "LOG_SELECT"; break;
281 case LOG_SENSE: what = "LOG_SENSE"; break;
282 case MODE_SELECT_10: what = "MODE_SELECT_10"; break;
283 case MODE_SENSE_10: what = "MODE_SENSE_10"; break;
284 case MOVE_MEDIUM: what = "MOVE_MEDIUM"; break;
285 case READ_12: what = "READ_12"; break;
286 case WRITE_12: what = "WRITE_12"; break;
287 case WRITE_VERIFY_12: what = "WRITE_VERIFY_12"; break;
288 case SEARCH_HIGH_12: what = "SEARCH_HIGH_12"; break;
289 case SEARCH_EQUAL_12: what = "SEARCH_EQUAL_12"; break;
290 case SEARCH_LOW_12: what = "SEARCH_LOW_12"; break;
291 case READ_ELEMENT_STATUS: what = "READ_ELEMENT_STATUS"; break;
292 case SEND_VOLUME_TAG: what = "SEND_VOLUME_TAG"; break;
293 case WRITE_LONG_2: what = "WRITE_LONG_2"; break;
295 MTS_DEBUG("can't decode command\n");
299 MTS_DEBUG( "Command %s (%d bytes)\n", what, srb->cmd_len);
302 MTS_DEBUG( " %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
303 srb->cmnd[0], srb->cmnd[1], srb->cmnd[2], srb->cmnd[3], srb->cmnd[4], srb->cmnd[5],
304 srb->cmnd[6], srb->cmnd[7], srb->cmnd[8], srb->cmnd[9]);
309 static inline void mts_show_command(struct scsi_cmnd * dummy)
313 static inline void mts_debug_dump(struct mts_desc* dummy)
319 static inline void mts_urb_abort(struct mts_desc* desc) {
320 MTS_DEBUG_GOT_HERE();
321 mts_debug_dump(desc);
323 usb_kill_urb( desc->urb );
326 static int mts_slave_alloc (struct scsi_device *s)
328 s->inquiry_len = 0x24;
332 static int mts_slave_configure (struct scsi_device *s)
334 blk_queue_dma_alignment(s->request_queue, (512 - 1));
338 static int mts_scsi_abort(struct scsi_cmnd *srb)
340 struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
342 MTS_DEBUG_GOT_HERE();
349 static int mts_scsi_host_reset(struct scsi_cmnd *srb)
351 struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
354 MTS_DEBUG_GOT_HERE();
355 mts_debug_dump(desc);
357 result = usb_lock_device_for_reset(desc->usb_dev, desc->usb_intf);
359 result = usb_reset_device(desc->usb_dev);
360 usb_unlock_device(desc->usb_dev);
362 return result ? FAILED : SUCCESS;
366 mts_scsi_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *srb);
368 static void mts_transfer_cleanup( struct urb *transfer );
369 static void mts_do_sg(struct urb * transfer);
372 void mts_int_submit_urb (struct urb* transfer,
376 usb_complete_t callback )
377 /* Interrupt context! */
379 /* Holding transfer->context->lock! */
385 usb_fill_bulk_urb(transfer,
386 context->instance->usb_dev,
394 res = usb_submit_urb( transfer, GFP_ATOMIC );
395 if ( unlikely(res) ) {
396 MTS_INT_ERROR( "could not submit URB! Error was %d\n",(int)res );
397 context->srb->result = DID_ERROR << 16;
398 mts_transfer_cleanup(transfer);
403 static void mts_transfer_cleanup( struct urb *transfer )
404 /* Interrupt context! */
408 if ( likely(context->final_callback != NULL) )
409 context->final_callback(context->srb);
412 static void mts_transfer_done( struct urb *transfer )
416 context->srb->result &= MTS_SCSI_ERR_MASK;
417 context->srb->result |= (unsigned)(*context->scsi_status)<<1;
419 mts_transfer_cleanup(transfer);
423 static void mts_get_status( struct urb *transfer )
424 /* Interrupt context! */
428 mts_int_submit_urb(transfer,
429 usb_rcvbulkpipe(context->instance->usb_dev,
430 context->instance->ep_response),
431 context->scsi_status,
436 static void mts_data_done( struct urb* transfer )
437 /* Interrupt context! */
439 int status = transfer->status;
442 if ( context->data_length != transfer->actual_length ) {
443 scsi_set_resid(context->srb, context->data_length -
444 transfer->actual_length);
445 } else if ( unlikely(status) ) {
446 context->srb->result = (status == -ENOENT ? DID_ABORT : DID_ERROR)<<16;
449 mts_get_status(transfer);
453 static void mts_command_done( struct urb *transfer )
454 /* Interrupt context! */
456 int status = transfer->status;
459 if ( unlikely(status) ) {
460 if (status == -ENOENT) {
461 /* We are being killed */
462 MTS_DEBUG_GOT_HERE();
463 context->srb->result = DID_ABORT<<16;
465 /* A genuine error has occurred */
466 MTS_DEBUG_GOT_HERE();
468 context->srb->result = DID_ERROR<<16;
470 mts_transfer_cleanup(transfer);
475 if (context->srb->cmnd[0] == REQUEST_SENSE) {
476 mts_int_submit_urb(transfer,
478 context->srb->sense_buffer,
479 context->data_length,
481 } else { if ( context->data ) {
482 mts_int_submit_urb(transfer,
485 context->data_length,
486 scsi_sg_count(context->srb) > 1 ?
487 mts_do_sg : mts_data_done);
489 mts_get_status(transfer);
494 static void mts_do_sg (struct urb* transfer)
496 struct scatterlist * sg;
497 int status = transfer->status;
500 MTS_DEBUG("Processing fragment %d of %d\n", context->fragment,
501 scsi_sg_count(context->srb));
503 if (unlikely(status)) {
504 context->srb->result = (status == -ENOENT ? DID_ABORT : DID_ERROR)<<16;
505 mts_transfer_cleanup(transfer);
508 sg = scsi_sglist(context->srb);
510 mts_int_submit_urb(transfer,
512 sg_virt(&sg[context->fragment]),
513 sg[context->fragment].length,
514 context->fragment + 1 == scsi_sg_count(context->srb) ?
515 mts_data_done : mts_do_sg);
518 static const u8 mts_read_image_sig[] = { 0x28, 00, 00, 00 };
519 static const u8 mts_read_image_sig_len = 4;
520 static const unsigned char mts_direction[256/8] = {
521 0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
522 0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
523 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
524 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
528 #define MTS_DIRECTION_IS_IN(x) ((mts_direction[x>>3] >> (x & 7)) & 1)
531 mts_build_transfer_context(struct scsi_cmnd *srb, struct mts_desc* desc)
534 struct scatterlist * sg;
536 MTS_DEBUG_GOT_HERE();
538 desc->context.instance = desc;
539 desc->context.srb = srb;
540 desc->context.fragment = 0;
542 if (!scsi_bufflen(srb)) {
543 desc->context.data = NULL;
544 desc->context.data_length = 0;
547 sg = scsi_sglist(srb);
548 desc->context.data = sg_virt(&sg[0]);
549 desc->context.data_length = sg[0].length;
553 /* can't rely on srb->sc_data_direction */
555 /* Brutally ripped from usb-storage */
557 if ( !memcmp( srb->cmnd, mts_read_image_sig, mts_read_image_sig_len )
558 ) { pipe = usb_rcvbulkpipe(desc->usb_dev,desc->ep_image);
559 MTS_DEBUG( "transferring from desc->ep_image == %d\n",
560 (int)desc->ep_image );
561 } else if ( MTS_DIRECTION_IS_IN(srb->cmnd[0]) ) {
562 pipe = usb_rcvbulkpipe(desc->usb_dev,desc->ep_response);
563 MTS_DEBUG( "transferring from desc->ep_response == %d\n",
564 (int)desc->ep_response);
566 MTS_DEBUG("transferring to desc->ep_out == %d\n",
568 pipe = usb_sndbulkpipe(desc->usb_dev,desc->ep_out);
570 desc->context.data_pipe = pipe;
575 mts_scsi_queuecommand_lck(struct scsi_cmnd *srb, mts_scsi_cmnd_callback callback)
577 struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
581 MTS_DEBUG_GOT_HERE();
582 mts_show_command(srb);
583 mts_debug_dump(desc);
585 if ( srb->device->lun || srb->device->id || srb->device->channel ) {
587 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 );
589 MTS_DEBUG("this device doesn't exist\n");
591 srb->result = DID_BAD_TARGET << 16;
593 if(likely(callback != NULL))
600 usb_fill_bulk_urb(desc->urb,
602 usb_sndbulkpipe(desc->usb_dev,desc->ep_out),
610 mts_build_transfer_context( srb, desc );
611 desc->context.final_callback = callback;
613 /* here we need ATOMIC as we are called with the iolock */
614 res=usb_submit_urb(desc->urb, GFP_ATOMIC);
617 MTS_ERROR("error %d submitting URB\n",(int)res);
618 srb->result = DID_ERROR << 16;
620 if(likely(callback != NULL))
628 static DEF_SCSI_QCMD(mts_scsi_queuecommand)
630 static struct scsi_host_template mts_scsi_host_template = {
631 .module = THIS_MODULE,
632 .name = "microtekX6",
633 .proc_name = "microtekX6",
634 .queuecommand = mts_scsi_queuecommand,
635 .eh_abort_handler = mts_scsi_abort,
636 .eh_host_reset_handler = mts_scsi_host_reset,
637 .sg_tablesize = SG_ALL,
643 .slave_alloc = mts_slave_alloc,
644 .slave_configure = mts_slave_configure,
645 .max_sectors= 256, /* 128 K */
648 /* The entries of microtek_table must correspond, line-by-line to
649 the entries of mts_supported_products[]. */
651 static const struct usb_device_id mts_usb_ids[] =
653 { USB_DEVICE(0x4ce, 0x0300) },
654 { USB_DEVICE(0x5da, 0x0094) },
655 { USB_DEVICE(0x5da, 0x0099) },
656 { USB_DEVICE(0x5da, 0x009a) },
657 { USB_DEVICE(0x5da, 0x00a0) },
658 { USB_DEVICE(0x5da, 0x00a3) },
659 { USB_DEVICE(0x5da, 0x80a3) },
660 { USB_DEVICE(0x5da, 0x80ac) },
661 { USB_DEVICE(0x5da, 0x00b6) },
662 { } /* Terminating entry */
665 MODULE_DEVICE_TABLE (usb, mts_usb_ids);
668 static int mts_usb_probe(struct usb_interface *intf,
669 const struct usb_device_id *id)
673 int ep_in_set[3]; /* this will break if we have more than three endpoints
674 which is why we check */
675 int *ep_in_current = ep_in_set;
676 int err_retval = -ENOMEM;
678 struct mts_desc * new_desc;
679 struct usb_device *dev = interface_to_usbdev (intf);
681 /* the current altsetting on the interface we're probing */
682 struct usb_host_interface *altsetting;
684 MTS_DEBUG_GOT_HERE();
685 MTS_DEBUG( "usb-device descriptor at %x\n", (int)dev );
687 MTS_DEBUG( "product id = 0x%x, vendor id = 0x%x\n",
688 le16_to_cpu(dev->descriptor.idProduct),
689 le16_to_cpu(dev->descriptor.idVendor) );
691 MTS_DEBUG_GOT_HERE();
693 /* the current altsetting on the interface we're probing */
694 altsetting = intf->cur_altsetting;
697 /* Check if the config is sane */
699 if ( altsetting->desc.bNumEndpoints != MTS_EP_TOTAL ) {
700 MTS_WARNING( "expecting %d got %d endpoints! Bailing out.\n",
701 (int)MTS_EP_TOTAL, (int)altsetting->desc.bNumEndpoints );
705 for( i = 0; i < altsetting->desc.bNumEndpoints; i++ ) {
706 if ((altsetting->endpoint[i].desc.bmAttributes &
707 USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK) {
709 MTS_WARNING( "can only deal with bulk endpoints; endpoint %d is not bulk.\n",
710 (int)altsetting->endpoint[i].desc.bEndpointAddress );
712 if (altsetting->endpoint[i].desc.bEndpointAddress &
715 = altsetting->endpoint[i].desc.bEndpointAddress &
716 USB_ENDPOINT_NUMBER_MASK;
718 if ( ep_out != -1 ) {
719 MTS_WARNING( "can only deal with one output endpoints. Bailing out." );
723 ep_out = altsetting->endpoint[i].desc.bEndpointAddress &
724 USB_ENDPOINT_NUMBER_MASK;
731 if ( ep_out == -1 ) {
732 MTS_WARNING( "couldn't find an output bulk endpoint. Bailing out.\n" );
737 new_desc = kzalloc(sizeof(struct mts_desc), GFP_KERNEL);
741 new_desc->urb = usb_alloc_urb(0, GFP_KERNEL);
745 new_desc->context.scsi_status = kmalloc(1, GFP_KERNEL);
746 if (!new_desc->context.scsi_status)
749 new_desc->usb_dev = dev;
750 new_desc->usb_intf = intf;
753 new_desc->ep_out = ep_out;
754 new_desc->ep_response = ep_in_set[0];
755 new_desc->ep_image = ep_in_set[1];
757 if ( new_desc->ep_out != MTS_EP_OUT )
758 MTS_WARNING( "will this work? Command EP is not usually %d\n",
759 (int)new_desc->ep_out );
761 if ( new_desc->ep_response != MTS_EP_RESPONSE )
762 MTS_WARNING( "will this work? Response EP is not usually %d\n",
763 (int)new_desc->ep_response );
765 if ( new_desc->ep_image != MTS_EP_IMAGE )
766 MTS_WARNING( "will this work? Image data EP is not usually %d\n",
767 (int)new_desc->ep_image );
769 new_desc->host = scsi_host_alloc(&mts_scsi_host_template,
774 new_desc->host->hostdata[0] = (unsigned long)new_desc;
775 if (scsi_add_host(new_desc->host, &dev->dev)) {
779 scsi_scan_host(new_desc->host);
781 usb_set_intfdata(intf, new_desc);
785 scsi_host_put(new_desc->host);
787 kfree(new_desc->context.scsi_status);
789 usb_free_urb(new_desc->urb);
796 static void mts_usb_disconnect (struct usb_interface *intf)
798 struct mts_desc *desc = usb_get_intfdata(intf);
800 usb_set_intfdata(intf, NULL);
802 usb_kill_urb(desc->urb);
803 scsi_remove_host(desc->host);
805 scsi_host_put(desc->host);
806 usb_free_urb(desc->urb);
807 kfree(desc->context.scsi_status);
811 module_usb_driver(mts_usb_driver);
813 MODULE_AUTHOR( DRIVER_AUTHOR );
814 MODULE_DESCRIPTION( DRIVER_DESC );
815 MODULE_LICENSE("GPL");