aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/usb/image
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/usb/image
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/usb/image')
-rw-r--r--drivers/usb/image/Kconfig30
-rw-r--r--drivers/usb/image/Makefile6
-rw-r--r--drivers/usb/image/mdc800.c1063
-rw-r--r--drivers/usb/image/microtek.c862
-rw-r--r--drivers/usb/image/microtek.h55
5 files changed, 2016 insertions, 0 deletions
diff --git a/drivers/usb/image/Kconfig b/drivers/usb/image/Kconfig
new file mode 100644
index 000000000000..95ce703110d2
--- /dev/null
+++ b/drivers/usb/image/Kconfig
@@ -0,0 +1,30 @@
1#
2# USB Imageing devices configuration
3#
4comment "USB Imaging devices"
5 depends on USB
6
7config USB_MDC800
8 tristate "USB Mustek MDC800 Digital Camera support (EXPERIMENTAL)"
9 depends on USB && EXPERIMENTAL
10 ---help---
11 Say Y here if you want to connect this type of still camera to
12 your computer's USB port. This driver can be used with gphoto 0.4.3
13 and higher (look at <http://www.gphoto.org/>).
14 To use it create a device node with "mknod /dev/mustek c 180 32" and
15 configure it in your software.
16
17 To compile this driver as a module, choose M here: the
18 module will be called mdc800.
19
20config USB_MICROTEK
21 tristate "Microtek X6USB scanner support"
22 depends on USB && SCSI
23 help
24 Say Y here if you want support for the Microtek X6USB and
25 possibly the Phantom 336CX, Phantom C6 and ScanMaker V6U(S)L.
26 Support for anything but the X6 is experimental.
27 Please report failures and successes.
28 The scanner will appear as a scsi generic device to the rest
29 of the system. Scsi support is required.
30 This driver can be compiled as a module, called microtek.
diff --git a/drivers/usb/image/Makefile b/drivers/usb/image/Makefile
new file mode 100644
index 000000000000..4148ae306352
--- /dev/null
+++ b/drivers/usb/image/Makefile
@@ -0,0 +1,6 @@
1#
2# Makefile for USB Image drivers
3#
4
5obj-$(CONFIG_USB_MDC800) += mdc800.o
6obj-$(CONFIG_USB_MICROTEK) += microtek.o
diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c
new file mode 100644
index 000000000000..5791723e6083
--- /dev/null
+++ b/drivers/usb/image/mdc800.c
@@ -0,0 +1,1063 @@
1/*
2 * copyright (C) 1999/2000 by Henning Zabel <henning@uni-paderborn.de>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software Foundation,
16 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18
19
20/*
21 * USB-Kernel Driver for the Mustek MDC800 Digital Camera
22 * (c) 1999/2000 Henning Zabel <henning@uni-paderborn.de>
23 *
24 *
25 * The driver brings the USB functions of the MDC800 to Linux.
26 * To use the Camera you must support the USB Protocoll of the camera
27 * to the Kernel Node.
28 * The Driver uses a misc device Node. Create it with :
29 * mknod /dev/mustek c 180 32
30 *
31 * The driver supports only one camera.
32 *
33 * Fix: mdc800 used sleep_on and slept with io_lock held.
34 * Converted sleep_on to waitqueues with schedule_timeout and made io_lock
35 * a semaphore from a spinlock.
36 * by Oliver Neukum <oliver@neukum.name>
37 * (02/12/2001)
38 *
39 * Identify version on module load.
40 * (08/04/2001) gb
41 *
42 * version 0.7.5
43 * Fixed potential SMP races with Spinlocks.
44 * Thanks to Oliver Neukum <oliver@neukum.name> who
45 * noticed the race conditions.
46 * (30/10/2000)
47 *
48 * Fixed: Setting urb->dev before submitting urb.
49 * by Greg KH <greg@kroah.com>
50 * (13/10/2000)
51 *
52 * version 0.7.3
53 * bugfix : The mdc800->state field gets set to READY after the
54 * the diconnect function sets it to NOT_CONNECTED. This makes the
55 * driver running like the camera is connected and causes some
56 * hang ups.
57 *
58 * version 0.7.1
59 * MOD_INC and MOD_DEC are changed in usb_probe to prevent load/unload
60 * problems when compiled as Module.
61 * (04/04/2000)
62 *
63 * The mdc800 driver gets assigned the USB Minor 32-47. The Registration
64 * was updated to use these values.
65 * (26/03/2000)
66 *
67 * The Init und Exit Module Function are updated.
68 * (01/03/2000)
69 *
70 * version 0.7.0
71 * Rewrite of the driver : The driver now uses URB's. The old stuff
72 * has been removed.
73 *
74 * version 0.6.0
75 * Rewrite of this driver: The Emulation of the rs232 protocoll
76 * has been removed from the driver. A special executeCommand function
77 * for this driver is included to gphoto.
78 * The driver supports two kind of communication to bulk endpoints.
79 * Either with the dev->bus->ops->bulk... or with callback function.
80 * (09/11/1999)
81 *
82 * version 0.5.0:
83 * first Version that gets a version number. Most of the needed
84 * functions work.
85 * (20/10/1999)
86 */
87
88#include <linux/sched.h>
89#include <linux/signal.h>
90#include <linux/spinlock.h>
91#include <linux/errno.h>
92#include <linux/random.h>
93#include <linux/poll.h>
94#include <linux/init.h>
95#include <linux/slab.h>
96#include <linux/module.h>
97#include <linux/smp_lock.h>
98#include <linux/wait.h>
99
100#include <linux/usb.h>
101#include <linux/fs.h>
102
103/*
104 * Version Information
105 */
106#define DRIVER_VERSION "v0.7.5 (30/10/2000)"
107#define DRIVER_AUTHOR "Henning Zabel <henning@uni-paderborn.de>"
108#define DRIVER_DESC "USB Driver for Mustek MDC800 Digital Camera"
109
110/* Vendor and Product Information */
111#define MDC800_VENDOR_ID 0x055f
112#define MDC800_PRODUCT_ID 0xa800
113
114/* Timeouts (msec) */
115#define TO_DOWNLOAD_GET_READY 1500
116#define TO_DOWNLOAD_GET_BUSY 1500
117#define TO_WRITE_GET_READY 1000
118#define TO_DEFAULT_COMMAND 5000
119#define TO_READ_FROM_IRQ TO_DEFAULT_COMMAND
120#define TO_GET_READY TO_DEFAULT_COMMAND
121
122/* Minor Number of the device (create with mknod /dev/mustek c 180 32) */
123#define MDC800_DEVICE_MINOR_BASE 32
124
125
126/**************************************************************************
127 Data and structs
128***************************************************************************/
129
130
131typedef enum {
132 NOT_CONNECTED, READY, WORKING, DOWNLOAD
133} mdc800_state;
134
135
136/* Data for the driver */
137struct mdc800_data
138{
139 struct usb_device * dev; // Device Data
140 mdc800_state state;
141
142 unsigned int endpoint [4];
143
144 struct urb * irq_urb;
145 wait_queue_head_t irq_wait;
146 int irq_woken;
147 char* irq_urb_buffer;
148
149 int camera_busy; // is camera busy ?
150 int camera_request_ready; // Status to synchronize with irq
151 char camera_response [8]; // last Bytes send after busy
152
153 struct urb * write_urb;
154 char* write_urb_buffer;
155 wait_queue_head_t write_wait;
156 int written;
157
158
159 struct urb * download_urb;
160 char* download_urb_buffer;
161 wait_queue_head_t download_wait;
162 int downloaded;
163 int download_left; // Bytes left to download ?
164
165
166 /* Device Data */
167 char out [64]; // Answer Buffer
168 int out_ptr; // Index to the first not readen byte
169 int out_count; // Bytes in the buffer
170
171 int open; // Camera device open ?
172 struct semaphore io_lock; // IO -lock
173
174 char in [8]; // Command Input Buffer
175 int in_count;
176
177 int pic_index; // Cache for the Imagesize (-1 for nothing cached )
178 int pic_len;
179 int minor;
180};
181
182
183/* Specification of the Endpoints */
184static struct usb_endpoint_descriptor mdc800_ed [4] =
185{
186 {
187 .bLength = 0,
188 .bDescriptorType = 0,
189 .bEndpointAddress = 0x01,
190 .bmAttributes = 0x02,
191 .wMaxPacketSize = __constant_cpu_to_le16(8),
192 .bInterval = 0,
193 .bRefresh = 0,
194 .bSynchAddress = 0,
195 },
196 {
197 .bLength = 0,
198 .bDescriptorType = 0,
199 .bEndpointAddress = 0x82,
200 .bmAttributes = 0x03,
201 .wMaxPacketSize = __constant_cpu_to_le16(8),
202 .bInterval = 0,
203 .bRefresh = 0,
204 .bSynchAddress = 0,
205 },
206 {
207 .bLength = 0,
208 .bDescriptorType = 0,
209 .bEndpointAddress = 0x03,
210 .bmAttributes = 0x02,
211 .wMaxPacketSize = __constant_cpu_to_le16(64),
212 .bInterval = 0,
213 .bRefresh = 0,
214 .bSynchAddress = 0,
215 },
216 {
217 .bLength = 0,
218 .bDescriptorType = 0,
219 .bEndpointAddress = 0x84,
220 .bmAttributes = 0x02,
221 .wMaxPacketSize = __constant_cpu_to_le16(64),
222 .bInterval = 0,
223 .bRefresh = 0,
224 .bSynchAddress = 0,
225 },
226};
227
228/* The Variable used by the driver */
229static struct mdc800_data* mdc800;
230
231
232/***************************************************************************
233 The USB Part of the driver
234****************************************************************************/
235
236static int mdc800_endpoint_equals (struct usb_endpoint_descriptor *a,struct usb_endpoint_descriptor *b)
237{
238 return (
239 ( a->bEndpointAddress == b->bEndpointAddress )
240 && ( a->bmAttributes == b->bmAttributes )
241 && ( a->wMaxPacketSize == b->wMaxPacketSize )
242 );
243}
244
245
246/*
247 * Checks whether the camera responds busy
248 */
249static int mdc800_isBusy (char* ch)
250{
251 int i=0;
252 while (i<8)
253 {
254 if (ch [i] != (char)0x99)
255 return 0;
256 i++;
257 }
258 return 1;
259}
260
261
262/*
263 * Checks whether the Camera is ready
264 */
265static int mdc800_isReady (char *ch)
266{
267 int i=0;
268 while (i<8)
269 {
270 if (ch [i] != (char)0xbb)
271 return 0;
272 i++;
273 }
274 return 1;
275}
276
277
278
279/*
280 * USB IRQ Handler for InputLine
281 */
282static void mdc800_usb_irq (struct urb *urb, struct pt_regs *res)
283{
284 int data_received=0, wake_up;
285 unsigned char* b=urb->transfer_buffer;
286 struct mdc800_data* mdc800=urb->context;
287
288 if (urb->status >= 0)
289 {
290
291 //dbg ("%i %i %i %i %i %i %i %i \n",b[0],b[1],b[2],b[3],b[4],b[5],b[6],b[7]);
292
293 if (mdc800_isBusy (b))
294 {
295 if (!mdc800->camera_busy)
296 {
297 mdc800->camera_busy=1;
298 dbg ("gets busy");
299 }
300 }
301 else
302 {
303 if (mdc800->camera_busy && mdc800_isReady (b))
304 {
305 mdc800->camera_busy=0;
306 dbg ("gets ready");
307 }
308 }
309 if (!(mdc800_isBusy (b) || mdc800_isReady (b)))
310 {
311 /* Store Data in camera_answer field */
312 dbg ("%i %i %i %i %i %i %i %i ",b[0],b[1],b[2],b[3],b[4],b[5],b[6],b[7]);
313
314 memcpy (mdc800->camera_response,b,8);
315 data_received=1;
316 }
317 }
318 wake_up= ( mdc800->camera_request_ready > 0 )
319 &&
320 (
321 ((mdc800->camera_request_ready == 1) && (!mdc800->camera_busy))
322 ||
323 ((mdc800->camera_request_ready == 2) && data_received)
324 ||
325 ((mdc800->camera_request_ready == 3) && (mdc800->camera_busy))
326 ||
327 (urb->status < 0)
328 );
329
330 if (wake_up)
331 {
332 mdc800->camera_request_ready=0;
333 mdc800->irq_woken=1;
334 wake_up (&mdc800->irq_wait);
335 }
336}
337
338
339/*
340 * Waits a while until the irq responds that camera is ready
341 *
342 * mode : 0: Wait for camera gets ready
343 * 1: Wait for receiving data
344 * 2: Wait for camera gets busy
345 *
346 * msec: Time to wait
347 */
348static int mdc800_usb_waitForIRQ (int mode, int msec)
349{
350 mdc800->camera_request_ready=1+mode;
351
352 wait_event_timeout(mdc800->irq_wait, mdc800->irq_woken, msec*HZ/1000);
353 mdc800->irq_woken = 0;
354
355 if (mdc800->camera_request_ready>0)
356 {
357 mdc800->camera_request_ready=0;
358 err ("timeout waiting for camera.");
359 return -1;
360 }
361
362 if (mdc800->state == NOT_CONNECTED)
363 {
364 warn ("Camera gets disconnected during waiting for irq.");
365 mdc800->camera_request_ready=0;
366 return -2;
367 }
368
369 return 0;
370}
371
372
373/*
374 * The write_urb callback function
375 */
376static void mdc800_usb_write_notify (struct urb *urb, struct pt_regs *res)
377{
378 struct mdc800_data* mdc800=urb->context;
379
380 if (urb->status != 0)
381 {
382 err ("writing command fails (status=%i)", urb->status);
383 }
384 else
385 {
386 mdc800->state=READY;
387 }
388 mdc800->written = 1;
389 wake_up (&mdc800->write_wait);
390}
391
392
393/*
394 * The download_urb callback function
395 */
396static void mdc800_usb_download_notify (struct urb *urb, struct pt_regs *res)
397{
398 struct mdc800_data* mdc800=urb->context;
399
400 if (urb->status == 0)
401 {
402 /* Fill output buffer with these data */
403 memcpy (mdc800->out, urb->transfer_buffer, 64);
404 mdc800->out_count=64;
405 mdc800->out_ptr=0;
406 mdc800->download_left-=64;
407 if (mdc800->download_left == 0)
408 {
409 mdc800->state=READY;
410 }
411 }
412 else
413 {
414 err ("request bytes fails (status:%i)", urb->status);
415 }
416 mdc800->downloaded = 1;
417 wake_up (&mdc800->download_wait);
418}
419
420
421/***************************************************************************
422 Probing for the Camera
423 ***************************************************************************/
424
425static struct usb_driver mdc800_usb_driver;
426static struct file_operations mdc800_device_ops;
427static struct usb_class_driver mdc800_class = {
428 .name = "usb/mdc800%d",
429 .fops = &mdc800_device_ops,
430 .mode = S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP,
431 .minor_base = MDC800_DEVICE_MINOR_BASE,
432};
433
434
435/*
436 * Callback to search the Mustek MDC800 on the USB Bus
437 */
438static int mdc800_usb_probe (struct usb_interface *intf,
439 const struct usb_device_id *id)
440{
441 int i,j;
442 struct usb_host_interface *intf_desc;
443 struct usb_device *dev = interface_to_usbdev (intf);
444 int irq_interval=0;
445 int retval;
446
447 dbg ("(mdc800_usb_probe) called.");
448
449
450 if (mdc800->dev != NULL)
451 {
452 warn ("only one Mustek MDC800 is supported.");
453 return -ENODEV;
454 }
455
456 if (dev->descriptor.bNumConfigurations != 1)
457 {
458 err ("probe fails -> wrong Number of Configuration");
459 return -ENODEV;
460 }
461 intf_desc = intf->cur_altsetting;
462
463 if (
464 ( intf_desc->desc.bInterfaceClass != 0xff )
465 || ( intf_desc->desc.bInterfaceSubClass != 0 )
466 || ( intf_desc->desc.bInterfaceProtocol != 0 )
467 || ( intf_desc->desc.bNumEndpoints != 4)
468 )
469 {
470 err ("probe fails -> wrong Interface");
471 return -ENODEV;
472 }
473
474 /* Check the Endpoints */
475 for (i=0; i<4; i++)
476 {
477 mdc800->endpoint[i]=-1;
478 for (j=0; j<4; j++)
479 {
480 if (mdc800_endpoint_equals (&intf_desc->endpoint [j].desc,&mdc800_ed [i]))
481 {
482 mdc800->endpoint[i]=intf_desc->endpoint [j].desc.bEndpointAddress ;
483 if (i==1)
484 {
485 irq_interval=intf_desc->endpoint [j].desc.bInterval;
486 }
487
488 continue;
489 }
490 }
491 if (mdc800->endpoint[i] == -1)
492 {
493 err ("probe fails -> Wrong Endpoints.");
494 return -ENODEV;
495 }
496 }
497
498
499 info ("Found Mustek MDC800 on USB.");
500
501 down (&mdc800->io_lock);
502
503 retval = usb_register_dev(intf, &mdc800_class);
504 if (retval) {
505 err ("Not able to get a minor for this device.");
506 return -ENODEV;
507 }
508
509 mdc800->dev=dev;
510 mdc800->open=0;
511
512 /* Setup URB Structs */
513 usb_fill_int_urb (
514 mdc800->irq_urb,
515 mdc800->dev,
516 usb_rcvintpipe (mdc800->dev,mdc800->endpoint [1]),
517 mdc800->irq_urb_buffer,
518 8,
519 mdc800_usb_irq,
520 mdc800,
521 irq_interval
522 );
523
524 usb_fill_bulk_urb (
525 mdc800->write_urb,
526 mdc800->dev,
527 usb_sndbulkpipe (mdc800->dev, mdc800->endpoint[0]),
528 mdc800->write_urb_buffer,
529 8,
530 mdc800_usb_write_notify,
531 mdc800
532 );
533
534 usb_fill_bulk_urb (
535 mdc800->download_urb,
536 mdc800->dev,
537 usb_rcvbulkpipe (mdc800->dev, mdc800->endpoint [3]),
538 mdc800->download_urb_buffer,
539 64,
540 mdc800_usb_download_notify,
541 mdc800
542 );
543
544 mdc800->state=READY;
545
546 up (&mdc800->io_lock);
547
548 usb_set_intfdata(intf, mdc800);
549 return 0;
550}
551
552
553/*
554 * Disconnect USB device (maybe the MDC800)
555 */
556static void mdc800_usb_disconnect (struct usb_interface *intf)
557{
558 struct mdc800_data* mdc800 = usb_get_intfdata(intf);
559
560 dbg ("(mdc800_usb_disconnect) called");
561
562 if (mdc800) {
563 if (mdc800->state == NOT_CONNECTED)
564 return;
565
566 usb_deregister_dev(intf, &mdc800_class);
567
568 mdc800->state=NOT_CONNECTED;
569
570 usb_kill_urb(mdc800->irq_urb);
571 usb_kill_urb(mdc800->write_urb);
572 usb_kill_urb(mdc800->download_urb);
573
574 mdc800->dev = NULL;
575 usb_set_intfdata(intf, NULL);
576 }
577 info ("Mustek MDC800 disconnected from USB.");
578}
579
580
581/***************************************************************************
582 The Misc device Part (file_operations)
583****************************************************************************/
584
585/*
586 * This Function calc the Answersize for a command.
587 */
588static int mdc800_getAnswerSize (char command)
589{
590 switch ((unsigned char) command)
591 {
592 case 0x2a:
593 case 0x49:
594 case 0x51:
595 case 0x0d:
596 case 0x20:
597 case 0x07:
598 case 0x01:
599 case 0x25:
600 case 0x00:
601 return 8;
602
603 case 0x05:
604 case 0x3e:
605 return mdc800->pic_len;
606
607 case 0x09:
608 return 4096;
609
610 default:
611 return 0;
612 }
613}
614
615
616/*
617 * Init the device: (1) alloc mem (2) Increase MOD Count ..
618 */
619static int mdc800_device_open (struct inode* inode, struct file *file)
620{
621 int retval=0;
622 int errn=0;
623
624 down (&mdc800->io_lock);
625
626 if (mdc800->state == NOT_CONNECTED)
627 {
628 errn=-EBUSY;
629 goto error_out;
630 }
631 if (mdc800->open)
632 {
633 errn=-EBUSY;
634 goto error_out;
635 }
636
637 mdc800->in_count=0;
638 mdc800->out_count=0;
639 mdc800->out_ptr=0;
640 mdc800->pic_index=0;
641 mdc800->pic_len=-1;
642 mdc800->download_left=0;
643
644 mdc800->camera_busy=0;
645 mdc800->camera_request_ready=0;
646
647 retval=0;
648 mdc800->irq_urb->dev = mdc800->dev;
649 if (usb_submit_urb (mdc800->irq_urb, GFP_KERNEL))
650 {
651 err ("request USB irq fails (submit_retval=%i urb_status=%i).",retval, mdc800->irq_urb->status);
652 errn = -EIO;
653 goto error_out;
654 }
655
656 mdc800->open=1;
657 dbg ("Mustek MDC800 device opened.");
658
659error_out:
660 up (&mdc800->io_lock);
661 return errn;
662}
663
664
665/*
666 * Close the Camera and release Memory
667 */
668static int mdc800_device_release (struct inode* inode, struct file *file)
669{
670 int retval=0;
671 dbg ("Mustek MDC800 device closed.");
672
673 down (&mdc800->io_lock);
674 if (mdc800->open && (mdc800->state != NOT_CONNECTED))
675 {
676 usb_kill_urb(mdc800->irq_urb);
677 usb_kill_urb(mdc800->write_urb);
678 usb_kill_urb(mdc800->download_urb);
679 mdc800->open=0;
680 }
681 else
682 {
683 retval=-EIO;
684 }
685
686 up(&mdc800->io_lock);
687 return retval;
688}
689
690
691/*
692 * The Device read callback Function
693 */
694static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t len, loff_t *pos)
695{
696 size_t left=len, sts=len; /* single transfer size */
697 char __user *ptr = buf;
698
699 down (&mdc800->io_lock);
700 if (mdc800->state == NOT_CONNECTED)
701 {
702 up (&mdc800->io_lock);
703 return -EBUSY;
704 }
705 if (mdc800->state == WORKING)
706 {
707 warn ("Illegal State \"working\" reached during read ?!");
708 up (&mdc800->io_lock);
709 return -EBUSY;
710 }
711 if (!mdc800->open)
712 {
713 up (&mdc800->io_lock);
714 return -EBUSY;
715 }
716
717 while (left)
718 {
719 if (signal_pending (current))
720 {
721 up (&mdc800->io_lock);
722 return -EINTR;
723 }
724
725 sts=left > (mdc800->out_count-mdc800->out_ptr)?mdc800->out_count-mdc800->out_ptr:left;
726
727 if (sts <= 0)
728 {
729 /* Too less Data in buffer */
730 if (mdc800->state == DOWNLOAD)
731 {
732 mdc800->out_count=0;
733 mdc800->out_ptr=0;
734
735 /* Download -> Request new bytes */
736 mdc800->download_urb->dev = mdc800->dev;
737 if (usb_submit_urb (mdc800->download_urb, GFP_KERNEL))
738 {
739 err ("Can't submit download urb (status=%i)",mdc800->download_urb->status);
740 up (&mdc800->io_lock);
741 return len-left;
742 }
743 wait_event_timeout(mdc800->download_wait, mdc800->downloaded,
744 TO_DOWNLOAD_GET_READY*HZ/1000);
745 mdc800->downloaded = 0;
746 if (mdc800->download_urb->status != 0)
747 {
748 err ("request download-bytes fails (status=%i)",mdc800->download_urb->status);
749 up (&mdc800->io_lock);
750 return len-left;
751 }
752 }
753 else
754 {
755 /* No more bytes -> that's an error*/
756 up (&mdc800->io_lock);
757 return -EIO;
758 }
759 }
760 else
761 {
762 /* Copy Bytes */
763 if (copy_to_user(ptr, &mdc800->out [mdc800->out_ptr],
764 sts)) {
765 up(&mdc800->io_lock);
766 return -EFAULT;
767 }
768 ptr+=sts;
769 left-=sts;
770 mdc800->out_ptr+=sts;
771 }
772 }
773
774 up (&mdc800->io_lock);
775 return len-left;
776}
777
778
779/*
780 * The Device write callback Function
781 * If a 8Byte Command is received, it will be send to the camera.
782 * After this the driver initiates the request for the answer or
783 * just waits until the camera becomes ready.
784 */
785static ssize_t mdc800_device_write (struct file *file, const char __user *buf, size_t len, loff_t *pos)
786{
787 size_t i=0;
788
789 down (&mdc800->io_lock);
790 if (mdc800->state != READY)
791 {
792 up (&mdc800->io_lock);
793 return -EBUSY;
794 }
795 if (!mdc800->open )
796 {
797 up (&mdc800->io_lock);
798 return -EBUSY;
799 }
800
801 while (i<len)
802 {
803 unsigned char c;
804 if (signal_pending (current))
805 {
806 up (&mdc800->io_lock);
807 return -EINTR;
808 }
809
810 if(get_user(c, buf+i))
811 {
812 up(&mdc800->io_lock);
813 return -EFAULT;
814 }
815
816 /* check for command start */
817 if (c == 0x55)
818 {
819 mdc800->in_count=0;
820 mdc800->out_count=0;
821 mdc800->out_ptr=0;
822 mdc800->download_left=0;
823 }
824
825 /* save command byte */
826 if (mdc800->in_count < 8)
827 {
828 mdc800->in[mdc800->in_count] = c;
829 mdc800->in_count++;
830 }
831 else
832 {
833 up (&mdc800->io_lock);
834 return -EIO;
835 }
836
837 /* Command Buffer full ? -> send it to camera */
838 if (mdc800->in_count == 8)
839 {
840 int answersize;
841
842 if (mdc800_usb_waitForIRQ (0,TO_GET_READY))
843 {
844 err ("Camera didn't get ready.\n");
845 up (&mdc800->io_lock);
846 return -EIO;
847 }
848
849 answersize=mdc800_getAnswerSize (mdc800->in[1]);
850
851 mdc800->state=WORKING;
852 memcpy (mdc800->write_urb->transfer_buffer, mdc800->in,8);
853 mdc800->write_urb->dev = mdc800->dev;
854 if (usb_submit_urb (mdc800->write_urb, GFP_KERNEL))
855 {
856 err ("submitting write urb fails (status=%i)", mdc800->write_urb->status);
857 up (&mdc800->io_lock);
858 return -EIO;
859 }
860 wait_event_timeout(mdc800->write_wait, mdc800->written, TO_WRITE_GET_READY*HZ/1000);
861 mdc800->written = 0;
862 if (mdc800->state == WORKING)
863 {
864 usb_kill_urb(mdc800->write_urb);
865 up (&mdc800->io_lock);
866 return -EIO;
867 }
868
869 switch ((unsigned char) mdc800->in[1])
870 {
871 case 0x05: /* Download Image */
872 case 0x3e: /* Take shot in Fine Mode (WCam Mode) */
873 if (mdc800->pic_len < 0)
874 {
875 err ("call 0x07 before 0x05,0x3e");
876 mdc800->state=READY;
877 up (&mdc800->io_lock);
878 return -EIO;
879 }
880 mdc800->pic_len=-1;
881
882 case 0x09: /* Download Thumbnail */
883 mdc800->download_left=answersize+64;
884 mdc800->state=DOWNLOAD;
885 mdc800_usb_waitForIRQ (0,TO_DOWNLOAD_GET_BUSY);
886 break;
887
888
889 default:
890 if (answersize)
891 {
892
893 if (mdc800_usb_waitForIRQ (1,TO_READ_FROM_IRQ))
894 {
895 err ("requesting answer from irq fails");
896 up (&mdc800->io_lock);
897 return -EIO;
898 }
899
900 /* Write dummy data, (this is ugly but part of the USB Protocol */
901 /* if you use endpoint 1 as bulk and not as irq) */
902 memcpy (mdc800->out, mdc800->camera_response,8);
903
904 /* This is the interpreted answer */
905 memcpy (&mdc800->out[8], mdc800->camera_response,8);
906
907 mdc800->out_ptr=0;
908 mdc800->out_count=16;
909
910 /* Cache the Imagesize, if command was getImageSize */
911 if (mdc800->in [1] == (char) 0x07)
912 {
913 mdc800->pic_len=(int) 65536*(unsigned char) mdc800->camera_response[0]+256*(unsigned char) mdc800->camera_response[1]+(unsigned char) mdc800->camera_response[2];
914
915 dbg ("cached imagesize = %i",mdc800->pic_len);
916 }
917
918 }
919 else
920 {
921 if (mdc800_usb_waitForIRQ (0,TO_DEFAULT_COMMAND))
922 {
923 err ("Command Timeout.");
924 up (&mdc800->io_lock);
925 return -EIO;
926 }
927 }
928 mdc800->state=READY;
929 break;
930 }
931 }
932 i++;
933 }
934 up (&mdc800->io_lock);
935 return i;
936}
937
938
939/***************************************************************************
940 Init and Cleanup this driver (Structs and types)
941****************************************************************************/
942
943/* File Operations of this drivers */
944static struct file_operations mdc800_device_ops =
945{
946 .owner = THIS_MODULE,
947 .read = mdc800_device_read,
948 .write = mdc800_device_write,
949 .open = mdc800_device_open,
950 .release = mdc800_device_release,
951};
952
953
954
955static struct usb_device_id mdc800_table [] = {
956 { USB_DEVICE(MDC800_VENDOR_ID, MDC800_PRODUCT_ID) },
957 { } /* Terminating entry */
958};
959
960MODULE_DEVICE_TABLE (usb, mdc800_table);
961/*
962 * USB Driver Struct for this device
963 */
964static struct usb_driver mdc800_usb_driver =
965{
966 .owner = THIS_MODULE,
967 .name = "mdc800",
968 .probe = mdc800_usb_probe,
969 .disconnect = mdc800_usb_disconnect,
970 .id_table = mdc800_table
971};
972
973
974
975/************************************************************************
976 Init and Cleanup this driver (Main Functions)
977*************************************************************************/
978
979#define try(A) if (!(A)) goto cleanup_on_fail;
980
981static int __init usb_mdc800_init (void)
982{
983 int retval = -ENODEV;
984 /* Allocate Memory */
985 try (mdc800=kmalloc (sizeof (struct mdc800_data), GFP_KERNEL));
986
987 memset(mdc800, 0, sizeof(struct mdc800_data));
988 mdc800->dev = NULL;
989 mdc800->open=0;
990 mdc800->state=NOT_CONNECTED;
991 init_MUTEX (&mdc800->io_lock);
992
993 init_waitqueue_head (&mdc800->irq_wait);
994 init_waitqueue_head (&mdc800->write_wait);
995 init_waitqueue_head (&mdc800->download_wait);
996
997 mdc800->irq_woken = 0;
998 mdc800->downloaded = 0;
999 mdc800->written = 0;
1000
1001 try (mdc800->irq_urb_buffer=kmalloc (8, GFP_KERNEL));
1002 try (mdc800->write_urb_buffer=kmalloc (8, GFP_KERNEL));
1003 try (mdc800->download_urb_buffer=kmalloc (64, GFP_KERNEL));
1004
1005 try (mdc800->irq_urb=usb_alloc_urb (0, GFP_KERNEL));
1006 try (mdc800->download_urb=usb_alloc_urb (0, GFP_KERNEL));
1007 try (mdc800->write_urb=usb_alloc_urb (0, GFP_KERNEL));
1008
1009 /* Register the driver */
1010 retval = usb_register(&mdc800_usb_driver);
1011 if (retval)
1012 goto cleanup_on_fail;
1013
1014 info (DRIVER_VERSION ":" DRIVER_DESC);
1015
1016 return 0;
1017
1018 /* Clean driver up, when something fails */
1019
1020cleanup_on_fail:
1021
1022 if (mdc800 != NULL)
1023 {
1024 err ("can't alloc memory!");
1025
1026 kfree(mdc800->download_urb_buffer);
1027 kfree(mdc800->write_urb_buffer);
1028 kfree(mdc800->irq_urb_buffer);
1029
1030 usb_free_urb(mdc800->write_urb);
1031 usb_free_urb(mdc800->download_urb);
1032 usb_free_urb(mdc800->irq_urb);
1033
1034 kfree (mdc800);
1035 }
1036 mdc800 = NULL;
1037 return retval;
1038}
1039
1040
1041static void __exit usb_mdc800_cleanup (void)
1042{
1043 usb_deregister (&mdc800_usb_driver);
1044
1045 usb_free_urb (mdc800->irq_urb);
1046 usb_free_urb (mdc800->download_urb);
1047 usb_free_urb (mdc800->write_urb);
1048
1049 kfree (mdc800->irq_urb_buffer);
1050 kfree (mdc800->write_urb_buffer);
1051 kfree (mdc800->download_urb_buffer);
1052
1053 kfree (mdc800);
1054 mdc800 = NULL;
1055}
1056
1057module_init (usb_mdc800_init);
1058module_exit (usb_mdc800_cleanup);
1059
1060MODULE_AUTHOR( DRIVER_AUTHOR );
1061MODULE_DESCRIPTION( DRIVER_DESC );
1062MODULE_LICENSE("GPL");
1063
diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c
new file mode 100644
index 000000000000..de0d32f6618d
--- /dev/null
+++ b/drivers/usb/image/microtek.c
@@ -0,0 +1,862 @@
1/* Driver for Microtek Scanmaker X6 USB scanner, and possibly others.
2 *
3 * (C) Copyright 2000 John Fremlin <vii@penguinpowered.com>
4 * (C) Copyright 2000 Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de>
5 *
6 * Parts shamelessly stolen from usb-storage and copyright by their
7 * authors. Thanks to Matt Dharm for giving us permission!
8 *
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_.
12 *
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.
16 *
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.
24 *
25 * It seems possible to read (with URB transfers) everything from 0x82
26 * in one go, without bothering to read in 32 byte chunks.
27 *
28 * There seems to be an optimisation of a further READ implicit if
29 * you simply read from 0x83.
30 *
31 * Guessed protocol:
32 *
33 * Send raw SCSI command to EP 0x1
34 *
35 * If there is data to receive:
36 * If the command was READ datatype=image:
37 * Read a lot of data from EP 0x83
38 * Else:
39 * Read data from EP 0x82
40 * Else:
41 * If there is data to transmit:
42 * Write it to EP 0x1
43 *
44 * Read status byte from EP 0x82
45 *
46 * References:
47 *
48 * The SCSI command set for the scanner is available from
49 * ftp://ftp.microtek.com/microtek/devpack/
50 *
51 * Microtek NV sent us a more up to date version of the document. If
52 * you want it, just send mail.
53 *
54 * Status:
55 *
56 * Untested with multiple scanners.
57 * Untested on SMP.
58 * Untested on a bigendian machine.
59 *
60 * History:
61 *
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-existant 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
120 */
121
122#include <linux/module.h>
123#include <linux/kernel.h>
124#include <linux/sched.h>
125#include <linux/signal.h>
126#include <linux/errno.h>
127#include <linux/random.h>
128#include <linux/poll.h>
129#include <linux/init.h>
130#include <linux/slab.h>
131#include <linux/spinlock.h>
132#include <linux/smp_lock.h>
133#include <linux/usb.h>
134#include <linux/proc_fs.h>
135
136#include <asm/atomic.h>
137#include <linux/blkdev.h>
138#include "../../scsi/scsi.h"
139#include <scsi/scsi_host.h>
140
141#include "microtek.h"
142
143/*
144 * Version Information
145 */
146#define DRIVER_VERSION "v0.4.3"
147#define DRIVER_AUTHOR "John Fremlin <vii@penguinpowered.com>, Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de>"
148#define DRIVER_DESC "Microtek Scanmaker X6 USB scanner driver"
149
150/* Should we do debugging? */
151
152//#define MTS_DO_DEBUG
153
154/* USB layer driver interface */
155
156static int mts_usb_probe(struct usb_interface *intf,
157 const struct usb_device_id *id);
158static void mts_usb_disconnect(struct usb_interface *intf);
159
160static struct usb_device_id mts_usb_ids [];
161
162static struct usb_driver mts_usb_driver = {
163 .owner = THIS_MODULE,
164 .name = "microtekX6",
165 .probe = mts_usb_probe,
166 .disconnect = mts_usb_disconnect,
167 .id_table = mts_usb_ids,
168};
169
170
171/* Internal driver stuff */
172
173#define MTS_VERSION "0.4.3"
174#define MTS_NAME "microtek usb (rev " MTS_VERSION "): "
175
176#define MTS_WARNING(x...) \
177 printk( KERN_WARNING MTS_NAME x )
178#define MTS_ERROR(x...) \
179 printk( KERN_ERR MTS_NAME x )
180#define MTS_INT_ERROR(x...) \
181 MTS_ERROR(x)
182#define MTS_MESSAGE(x...) \
183 printk( KERN_INFO MTS_NAME x )
184
185#if defined MTS_DO_DEBUG
186
187#define MTS_DEBUG(x...) \
188 printk( KERN_DEBUG MTS_NAME x )
189
190#define MTS_DEBUG_GOT_HERE() \
191 MTS_DEBUG("got to %s:%d (%s)\n", __FILE__, (int)__LINE__, __PRETTY_FUNCTION__ )
192#define MTS_DEBUG_INT() \
193 do { MTS_DEBUG_GOT_HERE(); \
194 MTS_DEBUG("transfer = 0x%x context = 0x%x\n",(int)transfer,(int)context ); \
195 MTS_DEBUG("status = 0x%x data-length = 0x%x sent = 0x%x\n",(int)transfer->status,(int)context->data_length, (int)transfer->actual_length ); \
196 mts_debug_dump(context->instance);\
197 } while(0)
198#else
199
200#define MTS_NUL_STATEMENT do { } while(0)
201
202#define MTS_DEBUG(x...) MTS_NUL_STATEMENT
203#define MTS_DEBUG_GOT_HERE() MTS_NUL_STATEMENT
204#define MTS_DEBUG_INT() MTS_NUL_STATEMENT
205
206#endif
207
208
209
210#define MTS_INT_INIT()\
211 struct mts_transfer_context* context = (struct mts_transfer_context*)transfer->context; \
212 MTS_DEBUG_INT();\
213
214#ifdef MTS_DO_DEBUG
215
216static inline void mts_debug_dump(struct mts_desc* desc) {
217 MTS_DEBUG("desc at 0x%x: toggle = %02x%02x\n",
218 (int)desc,
219 (int)desc->usb_dev->toggle[1],(int)desc->usb_dev->toggle[0]
220 );
221 MTS_DEBUG("ep_out=%x ep_response=%x ep_image=%x\n",
222 usb_sndbulkpipe(desc->usb_dev,desc->ep_out),
223 usb_rcvbulkpipe(desc->usb_dev,desc->ep_response),
224 usb_rcvbulkpipe(desc->usb_dev,desc->ep_image)
225 );
226}
227
228
229static inline void mts_show_command(Scsi_Cmnd *srb)
230{
231 char *what = NULL;
232
233 switch (srb->cmnd[0]) {
234 case TEST_UNIT_READY: what = "TEST_UNIT_READY"; break;
235 case REZERO_UNIT: what = "REZERO_UNIT"; break;
236 case REQUEST_SENSE: what = "REQUEST_SENSE"; break;
237 case FORMAT_UNIT: what = "FORMAT_UNIT"; break;
238 case READ_BLOCK_LIMITS: what = "READ_BLOCK_LIMITS"; break;
239 case REASSIGN_BLOCKS: what = "REASSIGN_BLOCKS"; break;
240 case READ_6: what = "READ_6"; break;
241 case WRITE_6: what = "WRITE_6"; break;
242 case SEEK_6: what = "SEEK_6"; break;
243 case READ_REVERSE: what = "READ_REVERSE"; break;
244 case WRITE_FILEMARKS: what = "WRITE_FILEMARKS"; break;
245 case SPACE: what = "SPACE"; break;
246 case INQUIRY: what = "INQUIRY"; break;
247 case RECOVER_BUFFERED_DATA: what = "RECOVER_BUFFERED_DATA"; break;
248 case MODE_SELECT: what = "MODE_SELECT"; break;
249 case RESERVE: what = "RESERVE"; break;
250 case RELEASE: what = "RELEASE"; break;
251 case COPY: what = "COPY"; break;
252 case ERASE: what = "ERASE"; break;
253 case MODE_SENSE: what = "MODE_SENSE"; break;
254 case START_STOP: what = "START_STOP"; break;
255 case RECEIVE_DIAGNOSTIC: what = "RECEIVE_DIAGNOSTIC"; break;
256 case SEND_DIAGNOSTIC: what = "SEND_DIAGNOSTIC"; break;
257 case ALLOW_MEDIUM_REMOVAL: what = "ALLOW_MEDIUM_REMOVAL"; break;
258 case SET_WINDOW: what = "SET_WINDOW"; break;
259 case READ_CAPACITY: what = "READ_CAPACITY"; break;
260 case READ_10: what = "READ_10"; break;
261 case WRITE_10: what = "WRITE_10"; break;
262 case SEEK_10: what = "SEEK_10"; break;
263 case WRITE_VERIFY: what = "WRITE_VERIFY"; break;
264 case VERIFY: what = "VERIFY"; break;
265 case SEARCH_HIGH: what = "SEARCH_HIGH"; break;
266 case SEARCH_EQUAL: what = "SEARCH_EQUAL"; break;
267 case SEARCH_LOW: what = "SEARCH_LOW"; break;
268 case SET_LIMITS: what = "SET_LIMITS"; break;
269 case READ_POSITION: what = "READ_POSITION"; break;
270 case SYNCHRONIZE_CACHE: what = "SYNCHRONIZE_CACHE"; break;
271 case LOCK_UNLOCK_CACHE: what = "LOCK_UNLOCK_CACHE"; break;
272 case READ_DEFECT_DATA: what = "READ_DEFECT_DATA"; break;
273 case MEDIUM_SCAN: what = "MEDIUM_SCAN"; break;
274 case COMPARE: what = "COMPARE"; break;
275 case COPY_VERIFY: what = "COPY_VERIFY"; break;
276 case WRITE_BUFFER: what = "WRITE_BUFFER"; break;
277 case READ_BUFFER: what = "READ_BUFFER"; break;
278 case UPDATE_BLOCK: what = "UPDATE_BLOCK"; break;
279 case READ_LONG: what = "READ_LONG"; break;
280 case WRITE_LONG: what = "WRITE_LONG"; break;
281 case CHANGE_DEFINITION: what = "CHANGE_DEFINITION"; break;
282 case WRITE_SAME: what = "WRITE_SAME"; break;
283 case READ_TOC: what = "READ_TOC"; break;
284 case LOG_SELECT: what = "LOG_SELECT"; break;
285 case LOG_SENSE: what = "LOG_SENSE"; break;
286 case MODE_SELECT_10: what = "MODE_SELECT_10"; break;
287 case MODE_SENSE_10: what = "MODE_SENSE_10"; break;
288 case MOVE_MEDIUM: what = "MOVE_MEDIUM"; break;
289 case READ_12: what = "READ_12"; break;
290 case WRITE_12: what = "WRITE_12"; break;
291 case WRITE_VERIFY_12: what = "WRITE_VERIFY_12"; break;
292 case SEARCH_HIGH_12: what = "SEARCH_HIGH_12"; break;
293 case SEARCH_EQUAL_12: what = "SEARCH_EQUAL_12"; break;
294 case SEARCH_LOW_12: what = "SEARCH_LOW_12"; break;
295 case READ_ELEMENT_STATUS: what = "READ_ELEMENT_STATUS"; break;
296 case SEND_VOLUME_TAG: what = "SEND_VOLUME_TAG"; break;
297 case WRITE_LONG_2: what = "WRITE_LONG_2"; break;
298 default:
299 MTS_DEBUG("can't decode command\n");
300 goto out;
301 break;
302 }
303 MTS_DEBUG( "Command %s (%d bytes)\n", what, srb->cmd_len);
304
305 out:
306 MTS_DEBUG( " %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
307 srb->cmnd[0], srb->cmnd[1], srb->cmnd[2], srb->cmnd[3], srb->cmnd[4], srb->cmnd[5],
308 srb->cmnd[6], srb->cmnd[7], srb->cmnd[8], srb->cmnd[9]);
309}
310
311#else
312
313static inline void mts_show_command(Scsi_Cmnd * dummy)
314{
315}
316
317static inline void mts_debug_dump(struct mts_desc* dummy)
318{
319}
320
321#endif
322
323static inline void mts_urb_abort(struct mts_desc* desc) {
324 MTS_DEBUG_GOT_HERE();
325 mts_debug_dump(desc);
326
327 usb_kill_urb( desc->urb );
328}
329
330static int mts_scsi_abort (Scsi_Cmnd *srb)
331{
332 struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
333
334 MTS_DEBUG_GOT_HERE();
335
336 mts_urb_abort(desc);
337
338 return SCSI_ABORT_PENDING;
339}
340
341static int mts_scsi_host_reset (Scsi_Cmnd *srb)
342{
343 struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
344 int result, rc;
345
346 MTS_DEBUG_GOT_HERE();
347 mts_debug_dump(desc);
348
349 rc = usb_lock_device_for_reset(desc->usb_dev, desc->usb_intf);
350 if (rc < 0)
351 return FAILED;
352 result = usb_reset_device(desc->usb_dev);;
353 if (rc)
354 usb_unlock_device(desc->usb_dev);
355 return result ? FAILED : SUCCESS;
356}
357
358static
359int mts_scsi_queuecommand (Scsi_Cmnd *srb, mts_scsi_cmnd_callback callback );
360
361static void mts_transfer_cleanup( struct urb *transfer );
362static void mts_do_sg(struct urb * transfer, struct pt_regs *regs);
363
364
365inline static
366void mts_int_submit_urb (struct urb* transfer,
367 int pipe,
368 void* data,
369 unsigned length,
370 usb_complete_t callback )
371/* Interrupt context! */
372
373/* Holding transfer->context->lock! */
374{
375 int res;
376
377 MTS_INT_INIT();
378
379 usb_fill_bulk_urb(transfer,
380 context->instance->usb_dev,
381 pipe,
382 data,
383 length,
384 callback,
385 context
386 );
387
388 transfer->status = 0;
389
390 res = usb_submit_urb( transfer, GFP_ATOMIC );
391 if ( unlikely(res) ) {
392 MTS_INT_ERROR( "could not submit URB! Error was %d\n",(int)res );
393 context->srb->result = DID_ERROR << 16;
394 mts_transfer_cleanup(transfer);
395 }
396 return;
397}
398
399
400static void mts_transfer_cleanup( struct urb *transfer )
401/* Interrupt context! */
402{
403 MTS_INT_INIT();
404
405 if ( likely(context->final_callback != NULL) )
406 context->final_callback(context->srb);
407
408}
409
410static void mts_transfer_done( struct urb *transfer, struct pt_regs *regs )
411{
412 MTS_INT_INIT();
413
414 context->srb->result &= MTS_SCSI_ERR_MASK;
415 context->srb->result |= (unsigned)context->status<<1;
416
417 mts_transfer_cleanup(transfer);
418
419 return;
420}
421
422
423static void mts_get_status( struct urb *transfer )
424/* Interrupt context! */
425{
426 MTS_INT_INIT();
427
428 mts_int_submit_urb(transfer,
429 usb_rcvbulkpipe(context->instance->usb_dev,
430 context->instance->ep_response),
431 &context->status,
432 1,
433 mts_transfer_done );
434}
435
436static void mts_data_done( struct urb* transfer, struct pt_regs *regs )
437/* Interrupt context! */
438{
439 MTS_INT_INIT();
440
441 if ( context->data_length != transfer->actual_length ) {
442 context->srb->resid = context->data_length - transfer->actual_length;
443 } else if ( unlikely(transfer->status) ) {
444 context->srb->result = (transfer->status == -ENOENT ? DID_ABORT : DID_ERROR)<<16;
445 }
446
447 mts_get_status(transfer);
448
449 return;
450}
451
452
453static void mts_command_done( struct urb *transfer, struct pt_regs *regs )
454/* Interrupt context! */
455{
456 MTS_INT_INIT();
457
458 if ( unlikely(transfer->status) ) {
459 if (transfer->status == -ENOENT) {
460 /* We are being killed */
461 MTS_DEBUG_GOT_HERE();
462 context->srb->result = DID_ABORT<<16;
463 } else {
464 /* A genuine error has occurred */
465 MTS_DEBUG_GOT_HERE();
466
467 context->srb->result = DID_ERROR<<16;
468 }
469 mts_transfer_cleanup(transfer);
470
471 return;
472 }
473
474 if (context->srb->cmnd[0] == REQUEST_SENSE) {
475 mts_int_submit_urb(transfer,
476 context->data_pipe,
477 context->srb->sense_buffer,
478 context->data_length,
479 mts_data_done);
480 } else { if ( context->data ) {
481 mts_int_submit_urb(transfer,
482 context->data_pipe,
483 context->data,
484 context->data_length,
485 context->srb->use_sg ? mts_do_sg : mts_data_done);
486 } else {
487 mts_get_status(transfer);
488 }
489 }
490
491 return;
492}
493
494static void mts_do_sg (struct urb* transfer, struct pt_regs *regs)
495{
496 struct scatterlist * sg;
497 MTS_INT_INIT();
498
499 MTS_DEBUG("Processing fragment %d of %d\n", context->fragment,context->srb->use_sg);
500
501 if (unlikely(transfer->status)) {
502 context->srb->result = (transfer->status == -ENOENT ? DID_ABORT : DID_ERROR)<<16;
503 mts_transfer_cleanup(transfer);
504 }
505
506 sg = context->srb->buffer;
507 context->fragment++;
508 mts_int_submit_urb(transfer,
509 context->data_pipe,
510 page_address(sg[context->fragment].page) +
511 sg[context->fragment].offset,
512 sg[context->fragment].length,
513 context->fragment + 1 == context->srb->use_sg ? mts_data_done : mts_do_sg);
514 return;
515}
516
517static const u8 mts_read_image_sig[] = { 0x28, 00, 00, 00 };
518static const u8 mts_read_image_sig_len = 4;
519static const unsigned char mts_direction[256/8] = {
520 0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
521 0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
522 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
523 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
524};
525
526
527#define MTS_DIRECTION_IS_IN(x) ((mts_direction[x>>3] >> (x & 7)) & 1)
528
529static void
530mts_build_transfer_context( Scsi_Cmnd *srb, struct mts_desc* desc )
531{
532 int pipe;
533 struct scatterlist * sg;
534
535 MTS_DEBUG_GOT_HERE();
536
537 desc->context.instance = desc;
538 desc->context.srb = srb;
539 desc->context.fragment = 0;
540
541 if (!srb->use_sg) {
542 if ( !srb->bufflen ){
543 desc->context.data = NULL;
544 desc->context.data_length = 0;
545 return;
546 } else {
547 desc->context.data = srb->buffer;
548 desc->context.data_length = srb->bufflen;
549 MTS_DEBUG("length = %d or %d\n",
550 srb->request_bufflen, srb->bufflen);
551 }
552 } else {
553 MTS_DEBUG("Using scatter/gather\n");
554 sg = srb->buffer;
555 desc->context.data = page_address(sg[0].page) + sg[0].offset;
556 desc->context.data_length = sg[0].length;
557 }
558
559
560 /* can't rely on srb->sc_data_direction */
561
562 /* Brutally ripped from usb-storage */
563
564 if ( !memcmp( srb->cmnd, mts_read_image_sig, mts_read_image_sig_len )
565) { pipe = usb_rcvbulkpipe(desc->usb_dev,desc->ep_image);
566 MTS_DEBUG( "transfering from desc->ep_image == %d\n",
567 (int)desc->ep_image );
568 } else if ( MTS_DIRECTION_IS_IN(srb->cmnd[0]) ) {
569 pipe = usb_rcvbulkpipe(desc->usb_dev,desc->ep_response);
570 MTS_DEBUG( "transfering from desc->ep_response == %d\n",
571 (int)desc->ep_response);
572 } else {
573 MTS_DEBUG("transfering to desc->ep_out == %d\n",
574 (int)desc->ep_out);
575 pipe = usb_sndbulkpipe(desc->usb_dev,desc->ep_out);
576 }
577 desc->context.data_pipe = pipe;
578}
579
580
581static
582int mts_scsi_queuecommand( Scsi_Cmnd *srb, mts_scsi_cmnd_callback callback )
583{
584 struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
585 int err = 0;
586 int res;
587
588 MTS_DEBUG_GOT_HERE();
589 mts_show_command(srb);
590 mts_debug_dump(desc);
591
592 if ( srb->device->lun || srb->device->id || srb->device->channel ) {
593
594 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 );
595
596 MTS_DEBUG("this device doesn't exist\n");
597
598 srb->result = DID_BAD_TARGET << 16;
599
600 if(likely(callback != NULL))
601 callback(srb);
602
603 goto out;
604 }
605
606
607 usb_fill_bulk_urb(desc->urb,
608 desc->usb_dev,
609 usb_sndbulkpipe(desc->usb_dev,desc->ep_out),
610 srb->cmnd,
611 srb->cmd_len,
612 mts_command_done,
613 &desc->context
614 );
615
616
617 mts_build_transfer_context( srb, desc );
618 desc->context.final_callback = callback;
619
620 /* here we need ATOMIC as we are called with the iolock */
621 res=usb_submit_urb(desc->urb, GFP_ATOMIC);
622
623 if(unlikely(res)){
624 MTS_ERROR("error %d submitting URB\n",(int)res);
625 srb->result = DID_ERROR << 16;
626
627 if(likely(callback != NULL))
628 callback(srb);
629
630 }
631
632out:
633 return err;
634}
635
636static Scsi_Host_Template mts_scsi_host_template = {
637 .module = THIS_MODULE,
638 .name = "microtekX6",
639 .proc_name = "microtekX6",
640 .queuecommand = mts_scsi_queuecommand,
641 .eh_abort_handler = mts_scsi_abort,
642 .eh_host_reset_handler = mts_scsi_host_reset,
643 .sg_tablesize = SG_ALL,
644 .can_queue = 1,
645 .this_id = -1,
646 .cmd_per_lun = 1,
647 .use_clustering = 1,
648 .emulated = 1,
649};
650
651struct vendor_product
652{
653 char* name;
654 enum
655 {
656 mts_sup_unknown=0,
657 mts_sup_alpha,
658 mts_sup_full
659 }
660 support_status;
661} ;
662
663
664/* These are taken from the msmUSB.inf file on the Windows driver CD */
665const static struct vendor_product mts_supported_products[] =
666{
667 { "Phantom 336CX", mts_sup_unknown},
668 { "Phantom 336CX", mts_sup_unknown},
669 { "Scanmaker X6", mts_sup_alpha},
670 { "Phantom C6", mts_sup_unknown},
671 { "Phantom 336CX", mts_sup_unknown},
672 { "ScanMaker V6USL", mts_sup_unknown},
673 { "ScanMaker V6USL", mts_sup_unknown},
674 { "Scanmaker V6UL", mts_sup_unknown},
675 { "Scanmaker V6UPL", mts_sup_alpha},
676};
677
678/* The entries of microtek_table must correspond, line-by-line to
679 the entries of mts_supported_products[]. */
680
681static struct usb_device_id mts_usb_ids [] =
682{
683 { USB_DEVICE(0x4ce, 0x0300) },
684 { USB_DEVICE(0x5da, 0x0094) },
685 { USB_DEVICE(0x5da, 0x0099) },
686 { USB_DEVICE(0x5da, 0x009a) },
687 { USB_DEVICE(0x5da, 0x00a0) },
688 { USB_DEVICE(0x5da, 0x00a3) },
689 { USB_DEVICE(0x5da, 0x80a3) },
690 { USB_DEVICE(0x5da, 0x80ac) },
691 { USB_DEVICE(0x5da, 0x00b6) },
692 { } /* Terminating entry */
693};
694
695MODULE_DEVICE_TABLE (usb, mts_usb_ids);
696
697
698static int mts_usb_probe(struct usb_interface *intf,
699 const struct usb_device_id *id)
700{
701 int i;
702 int ep_out = -1;
703 int ep_in_set[3]; /* this will break if we have more than three endpoints
704 which is why we check */
705 int *ep_in_current = ep_in_set;
706 int err_retval = -ENOMEM;
707
708 struct mts_desc * new_desc;
709 struct vendor_product const* p;
710 struct usb_device *dev = interface_to_usbdev (intf);
711
712 /* the current altsetting on the interface we're probing */
713 struct usb_host_interface *altsetting;
714
715 MTS_DEBUG_GOT_HERE();
716 MTS_DEBUG( "usb-device descriptor at %x\n", (int)dev );
717
718 MTS_DEBUG( "product id = 0x%x, vendor id = 0x%x\n",
719 le16_to_cpu(dev->descriptor.idProduct),
720 le16_to_cpu(dev->descriptor.idVendor) );
721
722 MTS_DEBUG_GOT_HERE();
723
724 p = &mts_supported_products[id - mts_usb_ids];
725
726 MTS_DEBUG_GOT_HERE();
727
728 MTS_DEBUG( "found model %s\n", p->name );
729 if ( p->support_status != mts_sup_full )
730 MTS_MESSAGE( "model %s is not known to be fully supported, reports welcome!\n",
731 p->name );
732
733 /* the current altsetting on the interface we're probing */
734 altsetting = intf->cur_altsetting;
735
736
737 /* Check if the config is sane */
738
739 if ( altsetting->desc.bNumEndpoints != MTS_EP_TOTAL ) {
740 MTS_WARNING( "expecting %d got %d endpoints! Bailing out.\n",
741 (int)MTS_EP_TOTAL, (int)altsetting->desc.bNumEndpoints );
742 return -ENODEV;
743 }
744
745 for( i = 0; i < altsetting->desc.bNumEndpoints; i++ ) {
746 if ((altsetting->endpoint[i].desc.bmAttributes &
747 USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK) {
748
749 MTS_WARNING( "can only deal with bulk endpoints; endpoint %d is not bulk.\n",
750 (int)altsetting->endpoint[i].desc.bEndpointAddress );
751 } else {
752 if (altsetting->endpoint[i].desc.bEndpointAddress &
753 USB_DIR_IN)
754 *ep_in_current++
755 = altsetting->endpoint[i].desc.bEndpointAddress &
756 USB_ENDPOINT_NUMBER_MASK;
757 else {
758 if ( ep_out != -1 ) {
759 MTS_WARNING( "can only deal with one output endpoints. Bailing out." );
760 return -ENODEV;
761 }
762
763 ep_out = altsetting->endpoint[i].desc.bEndpointAddress &
764 USB_ENDPOINT_NUMBER_MASK;
765 }
766 }
767
768 }
769
770
771 if ( ep_out == -1 ) {
772 MTS_WARNING( "couldn't find an output bulk endpoint. Bailing out.\n" );
773 return -ENODEV;
774 }
775
776
777 new_desc = kmalloc(sizeof(struct mts_desc), GFP_KERNEL);
778 if (!new_desc)
779 goto out;
780
781 memset(new_desc, 0, sizeof(*new_desc));
782 new_desc->urb = usb_alloc_urb(0, GFP_KERNEL);
783 if (!new_desc->urb)
784 goto out_kfree;
785
786 new_desc->usb_dev = dev;
787 new_desc->usb_intf = intf;
788 init_MUTEX(&new_desc->lock);
789
790 /* endpoints */
791 new_desc->ep_out = ep_out;
792 new_desc->ep_response = ep_in_set[0];
793 new_desc->ep_image = ep_in_set[1];
794
795 if ( new_desc->ep_out != MTS_EP_OUT )
796 MTS_WARNING( "will this work? Command EP is not usually %d\n",
797 (int)new_desc->ep_out );
798
799 if ( new_desc->ep_response != MTS_EP_RESPONSE )
800 MTS_WARNING( "will this work? Response EP is not usually %d\n",
801 (int)new_desc->ep_response );
802
803 if ( new_desc->ep_image != MTS_EP_IMAGE )
804 MTS_WARNING( "will this work? Image data EP is not usually %d\n",
805 (int)new_desc->ep_image );
806
807 new_desc->host = scsi_host_alloc(&mts_scsi_host_template,
808 sizeof(new_desc));
809 if (!new_desc->host)
810 goto out_free_urb;
811
812 new_desc->host->hostdata[0] = (unsigned long)new_desc;
813 if (scsi_add_host(new_desc->host, NULL)) {
814 err_retval = -EIO;
815 goto out_free_urb;
816 }
817 scsi_scan_host(new_desc->host);
818
819 usb_set_intfdata(intf, new_desc);
820 return 0;
821
822 out_free_urb:
823 usb_free_urb(new_desc->urb);
824 out_kfree:
825 kfree(new_desc);
826 out:
827 return err_retval;
828}
829
830static void mts_usb_disconnect (struct usb_interface *intf)
831{
832 struct mts_desc *desc = usb_get_intfdata(intf);
833
834 usb_set_intfdata(intf, NULL);
835
836 usb_kill_urb(desc->urb);
837 scsi_remove_host(desc->host);
838
839 scsi_host_put(desc->host);
840 usb_free_urb(desc->urb);
841 kfree(desc);
842}
843
844
845static int __init microtek_drv_init(void)
846{
847 return usb_register(&mts_usb_driver);
848}
849
850static void __exit microtek_drv_exit(void)
851{
852 usb_deregister(&mts_usb_driver);
853}
854
855module_init(microtek_drv_init);
856module_exit(microtek_drv_exit);
857
858MODULE_AUTHOR( DRIVER_AUTHOR );
859MODULE_DESCRIPTION( DRIVER_DESC );
860MODULE_LICENSE("GPL");
861
862
diff --git a/drivers/usb/image/microtek.h b/drivers/usb/image/microtek.h
new file mode 100644
index 000000000000..3271deb8c001
--- /dev/null
+++ b/drivers/usb/image/microtek.h
@@ -0,0 +1,55 @@
1 /*
2 * Driver for Microtek Scanmaker X6 USB scanner and possibly others.
3 *
4 * (C) Copyright 2000 John Fremlin <vii@penguinpowered.com>
5 * (C) Copyright 2000 Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de>
6 *
7 * See microtek.c for history
8 *
9 */
10
11typedef void (*mts_scsi_cmnd_callback)(Scsi_Cmnd *);
12
13
14struct mts_transfer_context
15{
16 struct mts_desc* instance;
17 mts_scsi_cmnd_callback final_callback;
18 Scsi_Cmnd *srb;
19
20 void* data;
21 unsigned data_length;
22 int data_pipe;
23 int fragment;
24
25 u8 status; /* status returned from ep_response after command completion */
26};
27
28
29struct mts_desc {
30 struct mts_desc *next;
31 struct mts_desc *prev;
32
33 struct usb_device *usb_dev;
34 struct usb_interface *usb_intf;
35
36 /* Endpoint addresses */
37 u8 ep_out;
38 u8 ep_response;
39 u8 ep_image;
40
41 struct Scsi_Host * host;
42 struct semaphore lock;
43
44 struct urb *urb;
45 struct mts_transfer_context context;
46};
47
48
49#define MTS_EP_OUT 0x1
50#define MTS_EP_RESPONSE 0x2
51#define MTS_EP_IMAGE 0x3
52#define MTS_EP_TOTAL 0x3
53
54#define MTS_SCSI_ERR_MASK ~0x3fu
55
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 22:30:27 -0500