aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/video/usbvideo/ultracam.c
blob: fbd1b6392290b8c4d57b6cb52bf3feefe6b50cf4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
/*
 * USB NB Camera driver
 *
 * HISTORY:
 * 25-Dec-2002 Dmitri      Removed lighting, sharpness parameters, methods.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>

#include "usbvideo.h"

#define	ULTRACAM_VENDOR_ID	0x0461
#define	ULTRACAM_PRODUCT_ID	0x0813

#define MAX_CAMERAS		4	/* How many devices we allow to connect */

/*
 * This structure lives in uvd_t->user field.
 */
typedef struct {
	int initialized;	/* Had we already sent init sequence? */
	int camera_model;	/* What type of IBM camera we got? */
	int has_hdr;
} ultracam_t;
#define	ULTRACAM_T(uvd)	((ultracam_t *)((uvd)->user_data))

static struct usbvideo *cams = NULL;

static int debug;

static int flags; /* FLAGS_DISPLAY_HINTS | FLAGS_OVERLAY_STATS; */

static const int min_canvasWidth  = 8;
static const int min_canvasHeight = 4;

#define FRAMERATE_MIN	0
#define FRAMERATE_MAX	6
static int framerate = -1;

/*
 * Here we define several initialization variables. They may
 * be used to automatically set color, hue, brightness and
 * contrast to desired values. This is particularly useful in
 * case of webcams (which have no controls and no on-screen
 * output) and also when a client V4L software is used that
 * does not have some of those controls. In any case it's
 * good to have startup values as options.
 *
 * These values are all in [0..255] range. This simplifies
 * operation. Note that actual values of V4L variables may
 * be scaled up (as much as << 8). User can see that only
 * on overlay output, however, or through a V4L client.
 */
static int init_brightness = 128;
static int init_contrast = 192;
static int init_color = 128;
static int init_hue = 128;
static int hue_correction = 128;

module_param(debug, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
module_param(flags, int, 0);
MODULE_PARM_DESC(flags,
		"Bitfield: 0=VIDIOCSYNC, "
		"1=B/W, "
		"2=show hints, "
		"3=show stats, "
		"4=test pattern, "
		"5=separate frames, "
		"6=clean frames");
module_param(framerate, int, 0);
MODULE_PARM_DESC(framerate, "Framerate setting: 0=slowest, 6=fastest (default=2)");

module_param(init_brightness, int, 0);
MODULE_PARM_DESC(init_brightness, "Brightness preconfiguration: 0-255 (default=128)");
module_param(init_contrast, int, 0);
MODULE_PARM_DESC(init_contrast, "Contrast preconfiguration: 0-255 (default=192)");
module_param(init_color, int, 0);
MODULE_PARM_DESC(init_color, "Color preconfiguration: 0-255 (default=128)");
module_param(init_hue, int, 0);
MODULE_PARM_DESC(init_hue, "Hue preconfiguration: 0-255 (default=128)");
module_param(hue_correction, int, 0);
MODULE_PARM_DESC(hue_correction, "YUV colorspace regulation: 0-255 (default=128)");

/*
 * ultracam_ProcessIsocData()
 *
 * Generic routine to parse the ring queue data. It employs either
 * ultracam_find_header() or ultracam_parse_lines() to do most
 * of work.
 *
 * 02-Nov-2000 First (mostly dummy) version.
 * 06-Nov-2000 Rewrote to dump all data into frame.
 */
static void ultracam_ProcessIsocData(struct uvd *uvd, struct usbvideo_frame *frame)
{
	int n;

	assert(uvd != NULL);
	assert(frame != NULL);

	/* Try to move data from queue into frame buffer */
	n = RingQueue_GetLength(&uvd->dp);
	if (n > 0) {
		int m;
		/* See how much spare we have left */
		m = uvd->max_frame_size - frame->seqRead_Length;
		if (n > m)
			n = m;
		/* Now move that much data into frame buffer */
		RingQueue_Dequeue(
			&uvd->dp,
			frame->data + frame->seqRead_Length,
			m);
		frame->seqRead_Length += m;
	}
	/* See if we filled the frame */
	if (frame->seqRead_Length >= uvd->max_frame_size) {
		frame->frameState = FrameState_Done;
		uvd->curframe = -1;
		uvd->stats.frame_num++;
	}
}

/*
 * ultracam_veio()
 *
 * History:
 * 1/27/00  Added check for dev == NULL; this happens if camera is unplugged.
 */
static int ultracam_veio(
	struct uvd *uvd,
	unsigned char req,
	unsigned short value,
	unsigned short index,
	int is_out)
{
	static const char proc[] = "ultracam_veio";
	unsigned char cp[8] /* = { 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef } */;
	int i;

	if (!CAMERA_IS_OPERATIONAL(uvd))
		return 0;

	if (!is_out) {
		i = usb_control_msg(
			uvd->dev,
			usb_rcvctrlpipe(uvd->dev, 0),
			req,
			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			value,
			index,
			cp,
			sizeof(cp),
			1000);
#if 1
		dev_info(&uvd->dev->dev,
			 "USB => %02x%02x%02x%02x%02x%02x%02x%02x "
			 "(req=$%02x val=$%04x ind=$%04x)\n",
			 cp[0],cp[1],cp[2],cp[3],cp[4],cp[5],cp[6],cp[7],
			 req, value, index);
#endif
	} else {
		i = usb_control_msg(
			uvd->dev,
			usb_sndctrlpipe(uvd->dev, 0),
			req,
			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			value,
			index,
			NULL,
			0,
			1000);
	}
	if (i < 0) {
		err("%s: ERROR=%d. Camera stopped; Reconnect or reload driver.",
		    proc, i);
		uvd->last_error = i;
	}
	return i;
}

/*
 * ultracam_calculate_fps()
 */
static int ultracam_calculate_fps(struct uvd *uvd)
{
	return 3 + framerate*4 + framerate/2;
}

/*
 * ultracam_adjust_contrast()
 */
static void ultracam_adjust_contrast(struct uvd *uvd)
{
}

/*
 * ultracam_set_brightness()
 *
 * This procedure changes brightness of the picture.
 */
static void ultracam_set_brightness(struct uvd *uvd)
{
}

static void ultracam_set_hue(struct uvd *uvd)
{
}

/*
 * ultracam_adjust_picture()
 *
 * This procedure gets called from V4L interface to update picture settings.
 * Here we change brightness and contrast.
 */
static void ultracam_adjust_picture(struct uvd *uvd)
{
	ultracam_adjust_contrast(uvd);
	ultracam_set_brightness(uvd);
	ultracam_set_hue(uvd);
}

/*
 * ultracam_video_stop()
 *
 * This code tells camera to stop streaming. The interface remains
 * configured and bandwidth - claimed.
 */
static void ultracam_video_stop(struct uvd *uvd)
{
}

/*
 * ultracam_reinit_iso()
 *
 * This procedure sends couple of commands to the camera and then
 * resets the video pipe. This sequence was observed to reinit the
 * camera or, at least, to initiate ISO data stream.
 */
static void ultracam_reinit_iso(struct uvd *uvd, int do_stop)
{
}

static void ultracam_video_start(struct uvd *uvd)
{
	ultracam_reinit_iso(uvd, 0);
}

static int ultracam_resetPipe(struct uvd *uvd)
{
	usb_clear_halt(uvd->dev, uvd->video_endp);
	return 0;
}

static int ultracam_alternateSetting(struct uvd *uvd, int setting)
{
	static const char proc[] = "ultracam_alternateSetting";
	int i;
	i = usb_set_interface(uvd->dev, uvd->iface, setting);
	if (i < 0) {
		err("%s: usb_set_interface error", proc);
		uvd->last_error = i;
		return -EBUSY;
	}
	return 0;
}

/*
 * Return negative code on failure, 0 on success.
 */
static int ultracam_setup_on_open(struct uvd *uvd)
{
	int setup_ok = 0; /* Success by default */
	/* Send init sequence only once, it's large! */
	if (!ULTRACAM_T(uvd)->initialized) {
		ultracam_alternateSetting(uvd, 0x04);
		ultracam_alternateSetting(uvd, 0x00);
		ultracam_veio(uvd, 0x02, 0x0004, 0x000b, 1);
		ultracam_veio(uvd, 0x02, 0x0001, 0x0005, 1);
		ultracam_veio(uvd, 0x02, 0x8000, 0x0000, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1);
		ultracam_veio(uvd, 0x00, 0x00b0, 0x0001, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x0002, 1);
		ultracam_veio(uvd, 0x00, 0x000c, 0x0003, 1);
		ultracam_veio(uvd, 0x00, 0x000b, 0x0004, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x0005, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x0006, 1);
		ultracam_veio(uvd, 0x00, 0x0079, 0x0007, 1);
		ultracam_veio(uvd, 0x00, 0x003b, 0x0008, 1);
		ultracam_veio(uvd, 0x00, 0x0002, 0x000f, 1);
		ultracam_veio(uvd, 0x00, 0x0001, 0x0010, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x0011, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00bf, 1);
		ultracam_veio(uvd, 0x00, 0x0001, 0x00c0, 1);
		ultracam_veio(uvd, 0x00, 0x0010, 0x00cb, 1);
		ultracam_veio(uvd, 0x01, 0x00a4, 0x0001, 1);
		ultracam_veio(uvd, 0x01, 0x0010, 0x0002, 1);
		ultracam_veio(uvd, 0x01, 0x0066, 0x0007, 1);
		ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1);
		ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1);
		ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1);
		ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1);
		ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1);
		ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1);
		ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1);
		ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1);
		ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1);
		ultracam_veio(uvd, 0x01, 0x000b, 0x0011, 1);
		ultracam_veio(uvd, 0x01, 0x0001, 0x0012, 1);
		ultracam_veio(uvd, 0x01, 0x0000, 0x0013, 1);
		ultracam_veio(uvd, 0x01, 0x0000, 0x0014, 1);
		ultracam_veio(uvd, 0x01, 0x0087, 0x0051, 1);
		ultracam_veio(uvd, 0x01, 0x0040, 0x0052, 1);
		ultracam_veio(uvd, 0x01, 0x0058, 0x0053, 1);
		ultracam_veio(uvd, 0x01, 0x0040, 0x0054, 1);
		ultracam_veio(uvd, 0x01, 0x0000, 0x0040, 1);
		ultracam_veio(uvd, 0x01, 0x0010, 0x0041, 1);
		ultracam_veio(uvd, 0x01, 0x0020, 0x0042, 1);
		ultracam_veio(uvd, 0x01, 0x0030, 0x0043, 1);
		ultracam_veio(uvd, 0x01, 0x0040, 0x0044, 1);
		ultracam_veio(uvd, 0x01, 0x0050, 0x0045, 1);
		ultracam_veio(uvd, 0x01, 0x0060, 0x0046, 1);
		ultracam_veio(uvd, 0x01, 0x0070, 0x0047, 1);
		ultracam_veio(uvd, 0x01, 0x0080, 0x0048, 1);
		ultracam_veio(uvd, 0x01, 0x0090, 0x0049, 1);
		ultracam_veio(uvd, 0x01, 0x00a0, 0x004a, 1);
		ultracam_veio(uvd, 0x01, 0x00b0, 0x004b, 1);
		ultracam_veio(uvd, 0x01, 0x00c0, 0x004c, 1);
		ultracam_veio(uvd, 0x01, 0x00d0, 0x004d, 1);
		ultracam_veio(uvd, 0x01, 0x00e0, 0x004e, 1);
		ultracam_veio(uvd, 0x01, 0x00f0, 0x004f, 1);
		ultracam_veio(uvd, 0x01, 0x00ff, 0x0050, 1);
		ultracam_veio(uvd, 0x01, 0x0000, 0x0056, 1);
		ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1);
		ultracam_veio(uvd, 0x00, 0x0004, 0x00c2, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0002, 0x00c1, 1);
		ultracam_veio(uvd, 0x00, 0x0020, 0x00c2, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0040, 0x00c1, 1);
		ultracam_veio(uvd, 0x00, 0x0017, 0x00c2, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
		ultracam_veio(uvd, 0x00, 0x00c0, 0x00c1, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
		ultracam_veio(uvd, 0x02, 0xc040, 0x0001, 1);
		ultracam_veio(uvd, 0x01, 0x0000, 0x0008, 0);
		ultracam_veio(uvd, 0x01, 0x0000, 0x0009, 0);
		ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 0);
		ultracam_veio(uvd, 0x01, 0x0000, 0x000b, 0);
		ultracam_veio(uvd, 0x01, 0x0000, 0x000c, 0);
		ultracam_veio(uvd, 0x01, 0x0000, 0x000d, 0);
		ultracam_veio(uvd, 0x01, 0x0000, 0x000e, 0);
		ultracam_veio(uvd, 0x01, 0x0000, 0x000f, 0);
		ultracam_veio(uvd, 0x01, 0x0000, 0x0010, 0);
		ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1);
		ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1);
		ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1);
		ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1);
		ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1);
		ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1);
		ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1);
		ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1);
		ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1);
		ultracam_veio(uvd, 0x01, 0x0000, 0x0001, 0);
		ultracam_veio(uvd, 0x01, 0x0064, 0x0001, 1);
		ultracam_veio(uvd, 0x01, 0x0059, 0x0051, 1);
		ultracam_veio(uvd, 0x01, 0x003f, 0x0052, 1);
		ultracam_veio(uvd, 0x01, 0x0094, 0x0053, 1);
		ultracam_veio(uvd, 0x01, 0x00ff, 0x0011, 1);
		ultracam_veio(uvd, 0x01, 0x0003, 0x0012, 1);
		ultracam_veio(uvd, 0x01, 0x00f7, 0x0013, 1);
		ultracam_veio(uvd, 0x00, 0x0009, 0x0011, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x0001, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1);
		ultracam_veio(uvd, 0x00, 0x0020, 0x00c1, 1);
		ultracam_veio(uvd, 0x00, 0x0010, 0x00c2, 1);
		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
		ultracam_alternateSetting(uvd, 0x04);
		ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1);
		ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1);
		ultracam_veio(uvd, 0x02, 0x0000, 0x0006, 1);
		ultracam_veio(uvd, 0x02, 0x9000, 0x0007, 1);
		ultracam_veio(uvd, 0x02, 0x0042, 0x0001, 1);
		ultracam_veio(uvd, 0x02, 0x0000, 0x000b, 0);
		ultracam_resetPipe(uvd);
		ULTRACAM_T(uvd)->initialized = (setup_ok != 0);
	}
	return setup_ok;
}

static void ultracam_configure_video(struct uvd *uvd)
{
	if (uvd == NULL)
		return;

	RESTRICT_TO_RANGE(init_brightness, 0, 255);
	RESTRICT_TO_RANGE(init_contrast, 0, 255);
	RESTRICT_TO_RANGE(init_color, 0, 255);
	RESTRICT_TO_RANGE(init_hue, 0, 255);
	RESTRICT_TO_RANGE(hue_correction, 0, 255);

	memset(&uvd->vpic, 0, sizeof(uvd->vpic));
	memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old));

	uvd->vpic.colour = init_color << 8;
	uvd->vpic.hue = init_hue << 8;
	uvd->vpic.brightness = init_brightness << 8;
	uvd->vpic.contrast = init_contrast << 8;
	uvd->vpic.whiteness = 105 << 8; /* This one isn't used */
	uvd->vpic.depth = 24;
	uvd->vpic.palette = VIDEO_PALETTE_RGB24;

	memset(&uvd->vcap, 0, sizeof(uvd->vcap));
	strcpy(uvd->vcap.name, "IBM Ultra Camera");
	uvd->vcap.type = VID_TYPE_CAPTURE;
	uvd->vcap.channels = 1;
	uvd->vcap.audios = 0;
	uvd->vcap.maxwidth = VIDEOSIZE_X(uvd->canvas);
	uvd->vcap.maxheight = VIDEOSIZE_Y(uvd->canvas);
	uvd->vcap.minwidth = min_canvasWidth;
	uvd->vcap.minheight = min_canvasHeight;

	memset(&uvd->vchan, 0, sizeof(uvd->vchan));
	uvd->vchan.flags = 0;
	uvd->vchan.tuners = 0;
	uvd->vchan.channel = 0;
	uvd->vchan.type = VIDEO_TYPE_CAMERA;
	strcpy(uvd->vchan.name, "Camera");
}

/*
 * ultracam_probe()
 *
 * This procedure queries device descriptor and accepts the interface
 * if it looks like our camera.
 *
 * History:
 * 12-Nov-2000 Reworked to comply with new probe() signature.
 * 23-Jan-2001 Added compatibility with 2.2.x kernels.
 */
static int ultracam_probe(struct usb_interface *intf, const struct usb_device_id *devid)
{
	struct usb_device *dev = interface_to_usbdev(intf);
	struct uvd *uvd = NULL;
	int ix, i, nas;
	int actInterface=-1, inactInterface=-1, maxPS=0;
	unsigned char video_ep = 0;

	if (debug >= 1)
		dev_info(&intf->dev, "ultracam_probe\n");

	/* We don't handle multi-config cameras */
	if (dev->descriptor.bNumConfigurations != 1)
		return -ENODEV;

	dev_info(&intf->dev, "IBM Ultra camera found (rev. 0x%04x)\n",
		 le16_to_cpu(dev->descriptor.bcdDevice));

	/* Validate found interface: must have one ISO endpoint */
	nas = intf->num_altsetting;
	if (debug > 0)
		dev_info(&intf->dev, "Number of alternate settings=%d.\n",
			 nas);
	if (nas < 8) {
		err("Too few alternate settings for this camera!");
		return -ENODEV;
	}
	/* Validate all alternate settings */
	for (ix=0; ix < nas; ix++) {
		const struct usb_host_interface *interface;
		const struct usb_endpoint_descriptor *endpoint;

		interface = &intf->altsetting[ix];
		i = interface->desc.bAlternateSetting;
		if (interface->desc.bNumEndpoints != 1) {
			err("Interface %d. has %u. endpoints!",
			    interface->desc.bInterfaceNumber,
			    (unsigned)(interface->desc.bNumEndpoints));
			return -ENODEV;
		}
		endpoint = &interface->endpoint[0].desc;
		if (video_ep == 0)
			video_ep = endpoint->bEndpointAddress;
		else if (video_ep != endpoint->bEndpointAddress) {
			err("Alternate settings have different endpoint addresses!");
			return -ENODEV;
		}
		if (!usb_endpoint_xfer_isoc(endpoint)) {
			err("Interface %d. has non-ISO endpoint!",
			    interface->desc.bInterfaceNumber);
			return -ENODEV;
		}
		if (usb_endpoint_dir_out(endpoint)) {
			err("Interface %d. has ISO OUT endpoint!",
			    interface->desc.bInterfaceNumber);
			return -ENODEV;
		}
		if (le16_to_cpu(endpoint->wMaxPacketSize) == 0) {
			if (inactInterface < 0)
				inactInterface = i;
			else {
				err("More than one inactive alt. setting!");
				return -ENODEV;
			}
		} else {
			if (actInterface < 0) {
				actInterface = i;
				maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
				if (debug > 0)
					dev_info(&intf->dev,
						 "Active setting=%d. "
						 "maxPS=%d.\n", i, maxPS);
			} else {
				/* Got another active alt. setting */
				if (maxPS < le16_to_cpu(endpoint->wMaxPacketSize)) {
					/* This one is better! */
					actInterface = i;
					maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
					if (debug > 0) {
						dev_info(&intf->dev,
							 "Even better ctive "
							 "setting=%d. "
							 "maxPS=%d.\n",
							 i, maxPS);
					}
				}
			}
		}
	}
	if ((maxPS <= 0) || (actInterface < 0) || (inactInterface < 0)) {
		err("Failed to recognize the camera!");
		return -ENODEV;
	}

	uvd = usbvideo_AllocateDevice(cams);
	if (uvd != NULL) {
		/* Here uvd is a fully allocated uvd object */
		uvd->flags = flags;
		uvd->debug = debug;
		uvd->dev = dev;
		uvd->iface = intf->altsetting->desc.bInterfaceNumber;
		uvd->ifaceAltInactive = inactInterface;
		uvd->ifaceAltActive = actInterface;
		uvd->video_endp = video_ep;
		uvd->iso_packet_len = maxPS;
		uvd->paletteBits = 1L << VIDEO_PALETTE_RGB24;
		uvd->defaultPalette = VIDEO_PALETTE_RGB24;
		uvd->canvas = VIDEOSIZE(640, 480);	/* FIXME */
		uvd->videosize = uvd->canvas; /* ultracam_size_to_videosize(size);*/

		/* Initialize ibmcam-specific data */
		assert(ULTRACAM_T(uvd) != NULL);
		ULTRACAM_T(uvd)->camera_model = 0; /* Not used yet */
		ULTRACAM_T(uvd)->initialized = 0;

		ultracam_configure_video(uvd);

		i = usbvideo_RegisterVideoDevice(uvd);
		if (i != 0) {
			err("usbvideo_RegisterVideoDevice() failed.");
			uvd = NULL;
		}
	}

	if (uvd) {
		usb_set_intfdata (intf, uvd);
		return 0;
	}
	return -EIO;
}


static struct usb_device_id id_table[] = {
	{ USB_DEVICE(ULTRACAM_VENDOR_ID, ULTRACAM_PRODUCT_ID) },
	{ }  /* Terminating entry */
};

/*
 * ultracam_init()
 *
 * This code is run to initialize the driver.
 */
static int __init ultracam_init(void)
{
	struct usbvideo_cb cbTbl;
	memset(&cbTbl, 0, sizeof(cbTbl));
	cbTbl.probe = ultracam_probe;
	cbTbl.setupOnOpen = ultracam_setup_on_open;
	cbTbl.videoStart = ultracam_video_start;
	cbTbl.videoStop = ultracam_video_stop;
	cbTbl.processData = ultracam_ProcessIsocData;
	cbTbl.postProcess = usbvideo_DeinterlaceFrame;
	cbTbl.adjustPicture = ultracam_adjust_picture;
	cbTbl.getFPS = ultracam_calculate_fps;
	return usbvideo_register(
		&cams,
		MAX_CAMERAS,
		sizeof(ultracam_t),
		"ultracam",
		&cbTbl,
		THIS_MODULE,
		id_table);
}

static void __exit ultracam_cleanup(void)
{
	usbvideo_Deregister(&cams);
}

MODULE_DEVICE_TABLE(usb, id_table);
MODULE_LICENSE("GPL");

module_init(ultracam_init);
module_exit(ultracam_cleanup);