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Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[mirror_ubuntu-zesty-kernel.git] / drivers / usb / media / konicawc.c
1 /*
2 * konicawc.c - konica webcam driver
3 *
4 * Author: Simon Evans <spse@secret.org.uk>
5 *
6 * Copyright (C) 2002 Simon Evans
7 *
8 * Licence: GPL
9 *
10 * Driver for USB webcams based on Konica chipset. This
11 * chipset is used in Intel YC76 camera.
12 *
13 */
14
15 #include <linux/kernel.h>
16 #include <linux/module.h>
17 #include <linux/init.h>
18 #include <linux/input.h>
19 #include <linux/usb_input.h>
20
21 #include "usbvideo.h"
22
23 #define MAX_BRIGHTNESS 108
24 #define MAX_CONTRAST 108
25 #define MAX_SATURATION 108
26 #define MAX_SHARPNESS 108
27 #define MAX_WHITEBAL 372
28 #define MAX_SPEED 6
29
30
31 #define MAX_CAMERAS 1
32
33 #define DRIVER_VERSION "v1.4"
34 #define DRIVER_DESC "Konica Webcam driver"
35
36 enum ctrl_req {
37 SetWhitebal = 0x01,
38 SetBrightness = 0x02,
39 SetSharpness = 0x03,
40 SetContrast = 0x04,
41 SetSaturation = 0x05,
42 };
43
44
45 enum frame_sizes {
46 SIZE_160X120 = 0,
47 SIZE_160X136 = 1,
48 SIZE_176X144 = 2,
49 SIZE_320X240 = 3,
50
51 };
52
53 #define MAX_FRAME_SIZE SIZE_320X240
54
55 static struct usbvideo *cams;
56
57 #ifdef CONFIG_USB_DEBUG
58 static int debug;
59 #define DEBUG(n, format, arg...) \
60 if (n <= debug) { \
61 printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __FUNCTION__ , ## arg); \
62 }
63 #else
64 #define DEBUG(n, arg...)
65 static const int debug = 0;
66 #endif
67
68
69 /* Some default values for initial camera settings,
70 can be set by modprobe */
71
72 static int size;
73 static int speed = 6; /* Speed (fps) 0 (slowest) to 6 (fastest) */
74 static int brightness = MAX_BRIGHTNESS/2;
75 static int contrast = MAX_CONTRAST/2;
76 static int saturation = MAX_SATURATION/2;
77 static int sharpness = MAX_SHARPNESS/2;
78 static int whitebal = 3*(MAX_WHITEBAL/4);
79
80 static const int spd_to_iface[] = { 1, 0, 3, 2, 4, 5, 6 };
81
82 /* These FPS speeds are from the windows config box. They are
83 * indexed on size (0-2) and speed (0-6). Divide by 3 to get the
84 * real fps.
85 */
86
87 static const int spd_to_fps[][7] = { { 24, 40, 48, 60, 72, 80, 100 },
88 { 24, 40, 48, 60, 72, 80, 100 },
89 { 18, 30, 36, 45, 54, 60, 75 },
90 { 6, 10, 12, 15, 18, 21, 25 } };
91
92 struct cam_size {
93 u16 width;
94 u16 height;
95 u8 cmd;
96 };
97
98 static const struct cam_size camera_sizes[] = { { 160, 120, 0x7 },
99 { 160, 136, 0xa },
100 { 176, 144, 0x4 },
101 { 320, 240, 0x5 } };
102
103 struct konicawc {
104 u8 brightness; /* camera uses 0 - 9, x11 for real value */
105 u8 contrast; /* as above */
106 u8 saturation; /* as above */
107 u8 sharpness; /* as above */
108 u8 white_bal; /* 0 - 33, x11 for real value */
109 u8 speed; /* Stored as 0 - 6, used as index in spd_to_* (above) */
110 u8 size; /* Frame Size */
111 int height;
112 int width;
113 struct urb *sts_urb[USBVIDEO_NUMSBUF];
114 u8 sts_buf[USBVIDEO_NUMSBUF][FRAMES_PER_DESC];
115 struct urb *last_data_urb;
116 int lastframe;
117 int cur_frame_size; /* number of bytes in current frame size */
118 int maxline; /* number of lines per frame */
119 int yplanesz; /* Number of bytes in the Y plane */
120 unsigned int buttonsts:1;
121 #ifdef CONFIG_INPUT
122 struct input_dev *input;
123 char input_physname[64];
124 #endif
125 };
126
127
128 #define konicawc_set_misc(uvd, req, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, req, value, index, NULL, 0)
129 #define konicawc_get_misc(uvd, req, value, index, buf, sz) konicawc_ctrl_msg(uvd, USB_DIR_IN, req, value, index, buf, sz)
130 #define konicawc_set_value(uvd, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, 2, value, index, NULL, 0)
131
132
133 static int konicawc_ctrl_msg(struct uvd *uvd, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
134 {
135 int retval = usb_control_msg(uvd->dev,
136 dir ? usb_rcvctrlpipe(uvd->dev, 0) : usb_sndctrlpipe(uvd->dev, 0),
137 request, 0x40 | dir, value, index, buf, len, 1000);
138 return retval < 0 ? retval : 0;
139 }
140
141
142 static inline void konicawc_camera_on(struct uvd *uvd)
143 {
144 DEBUG(0, "camera on");
145 konicawc_set_misc(uvd, 0x2, 1, 0x0b);
146 }
147
148
149 static inline void konicawc_camera_off(struct uvd *uvd)
150 {
151 DEBUG(0, "camera off");
152 konicawc_set_misc(uvd, 0x2, 0, 0x0b);
153 }
154
155
156 static void konicawc_set_camera_size(struct uvd *uvd)
157 {
158 struct konicawc *cam = (struct konicawc *)uvd->user_data;
159
160 konicawc_set_misc(uvd, 0x2, camera_sizes[cam->size].cmd, 0x08);
161 cam->width = camera_sizes[cam->size].width;
162 cam->height = camera_sizes[cam->size].height;
163 cam->yplanesz = cam->height * cam->width;
164 cam->cur_frame_size = (cam->yplanesz * 3) / 2;
165 cam->maxline = cam->yplanesz / 256;
166 uvd->videosize = VIDEOSIZE(cam->width, cam->height);
167 }
168
169
170 static int konicawc_setup_on_open(struct uvd *uvd)
171 {
172 struct konicawc *cam = (struct konicawc *)uvd->user_data;
173
174 DEBUG(1, "setting brightness to %d (%d)", cam->brightness,
175 cam->brightness * 11);
176 konicawc_set_value(uvd, cam->brightness, SetBrightness);
177 DEBUG(1, "setting white balance to %d (%d)", cam->white_bal,
178 cam->white_bal * 11);
179 konicawc_set_value(uvd, cam->white_bal, SetWhitebal);
180 DEBUG(1, "setting contrast to %d (%d)", cam->contrast,
181 cam->contrast * 11);
182 konicawc_set_value(uvd, cam->contrast, SetContrast);
183 DEBUG(1, "setting saturation to %d (%d)", cam->saturation,
184 cam->saturation * 11);
185 konicawc_set_value(uvd, cam->saturation, SetSaturation);
186 DEBUG(1, "setting sharpness to %d (%d)", cam->sharpness,
187 cam->sharpness * 11);
188 konicawc_set_value(uvd, cam->sharpness, SetSharpness);
189 konicawc_set_camera_size(uvd);
190 cam->lastframe = -2;
191 cam->buttonsts = 0;
192 return 0;
193 }
194
195
196 static void konicawc_adjust_picture(struct uvd *uvd)
197 {
198 struct konicawc *cam = (struct konicawc *)uvd->user_data;
199
200 konicawc_camera_off(uvd);
201 DEBUG(1, "new brightness: %d", uvd->vpic.brightness);
202 uvd->vpic.brightness = (uvd->vpic.brightness > MAX_BRIGHTNESS) ? MAX_BRIGHTNESS : uvd->vpic.brightness;
203 if(cam->brightness != uvd->vpic.brightness / 11) {
204 cam->brightness = uvd->vpic.brightness / 11;
205 DEBUG(1, "setting brightness to %d (%d)", cam->brightness,
206 cam->brightness * 11);
207 konicawc_set_value(uvd, cam->brightness, SetBrightness);
208 }
209
210 DEBUG(1, "new contrast: %d", uvd->vpic.contrast);
211 uvd->vpic.contrast = (uvd->vpic.contrast > MAX_CONTRAST) ? MAX_CONTRAST : uvd->vpic.contrast;
212 if(cam->contrast != uvd->vpic.contrast / 11) {
213 cam->contrast = uvd->vpic.contrast / 11;
214 DEBUG(1, "setting contrast to %d (%d)", cam->contrast,
215 cam->contrast * 11);
216 konicawc_set_value(uvd, cam->contrast, SetContrast);
217 }
218 konicawc_camera_on(uvd);
219 }
220
221 #ifdef CONFIG_INPUT
222
223 static void konicawc_register_input(struct konicawc *cam, struct usb_device *dev)
224 {
225 struct input_dev *input_dev;
226
227 usb_make_path(dev, cam->input_physname, sizeof(cam->input_physname));
228 strncat(cam->input_physname, "/input0", sizeof(cam->input_physname));
229
230 cam->input = input_dev = input_allocate_device();
231 if (!input_dev) {
232 warn("Not enough memory for camera's input device\n");
233 return;
234 }
235
236 input_dev->name = "Konicawc snapshot button";
237 input_dev->phys = cam->input_physname;
238 usb_to_input_id(dev, &input_dev->id);
239 input_dev->cdev.dev = &dev->dev;
240
241 input_dev->evbit[0] = BIT(EV_KEY);
242 input_dev->keybit[LONG(BTN_0)] = BIT(BTN_0);
243
244 input_dev->private = cam;
245
246 input_register_device(cam->input);
247 }
248
249 static void konicawc_unregister_input(struct konicawc *cam)
250 {
251 if (cam->input) {
252 input_unregister_device(cam->input);
253 cam->input = NULL;
254 }
255 }
256
257 static void konicawc_report_buttonstat(struct konicawc *cam)
258 {
259 if (cam->input) {
260 input_report_key(cam->input, BTN_0, cam->buttonsts);
261 input_sync(cam->input);
262 }
263 }
264
265 #else
266
267 static inline void konicawc_register_input(struct konicawc *cam, struct usb_device *dev) { }
268 static inline void konicawc_unregister_input(struct konicawc *cam) { }
269 static inline void konicawc_report_buttonstat(struct konicawc *cam) { }
270
271 #endif /* CONFIG_INPUT */
272
273 static int konicawc_compress_iso(struct uvd *uvd, struct urb *dataurb, struct urb *stsurb)
274 {
275 char *cdata;
276 int i, totlen = 0;
277 unsigned char *status = stsurb->transfer_buffer;
278 int keep = 0, discard = 0, bad = 0;
279 struct konicawc *cam = (struct konicawc *)uvd->user_data;
280
281 for (i = 0; i < dataurb->number_of_packets; i++) {
282 int button = cam->buttonsts;
283 unsigned char sts;
284 int n = dataurb->iso_frame_desc[i].actual_length;
285 int st = dataurb->iso_frame_desc[i].status;
286 cdata = dataurb->transfer_buffer +
287 dataurb->iso_frame_desc[i].offset;
288
289 /* Detect and ignore errored packets */
290 if (st < 0) {
291 DEBUG(1, "Data error: packet=%d. len=%d. status=%d.",
292 i, n, st);
293 uvd->stats.iso_err_count++;
294 continue;
295 }
296
297 /* Detect and ignore empty packets */
298 if (n <= 0) {
299 uvd->stats.iso_skip_count++;
300 continue;
301 }
302
303 /* See what the status data said about the packet */
304 sts = *(status+stsurb->iso_frame_desc[i].offset);
305
306 /* sts: 0x80-0xff: frame start with frame number (ie 0-7f)
307 * otherwise:
308 * bit 0 0: keep packet
309 * 1: drop packet (padding data)
310 *
311 * bit 4 0 button not clicked
312 * 1 button clicked
313 * button is used to `take a picture' (in software)
314 */
315
316 if(sts < 0x80) {
317 button = !!(sts & 0x40);
318 sts &= ~0x40;
319 }
320
321 /* work out the button status, but don't do
322 anything with it for now */
323
324 if(button != cam->buttonsts) {
325 DEBUG(2, "button: %sclicked", button ? "" : "un");
326 cam->buttonsts = button;
327 konicawc_report_buttonstat(cam);
328 }
329
330 if(sts == 0x01) { /* drop frame */
331 discard++;
332 continue;
333 }
334
335 if((sts > 0x01) && (sts < 0x80)) {
336 info("unknown status %2.2x", sts);
337 bad++;
338 continue;
339 }
340 if(!sts && cam->lastframe == -2) {
341 DEBUG(2, "dropping frame looking for image start");
342 continue;
343 }
344
345 keep++;
346 if(sts & 0x80) { /* frame start */
347 unsigned char marker[] = { 0, 0xff, 0, 0x00 };
348
349 if(cam->lastframe == -2) {
350 DEBUG(2, "found initial image");
351 cam->lastframe = -1;
352 }
353
354 marker[3] = sts & 0x7F;
355 RingQueue_Enqueue(&uvd->dp, marker, 4);
356 totlen += 4;
357 }
358
359 totlen += n; /* Little local accounting */
360 RingQueue_Enqueue(&uvd->dp, cdata, n);
361 }
362 DEBUG(8, "finished: keep = %d discard = %d bad = %d added %d bytes",
363 keep, discard, bad, totlen);
364 return totlen;
365 }
366
367
368 static void resubmit_urb(struct uvd *uvd, struct urb *urb)
369 {
370 int i, ret;
371 for (i = 0; i < FRAMES_PER_DESC; i++) {
372 urb->iso_frame_desc[i].status = 0;
373 }
374 urb->dev = uvd->dev;
375 urb->status = 0;
376 ret = usb_submit_urb(urb, GFP_ATOMIC);
377 DEBUG(3, "submitting urb of length %d", urb->transfer_buffer_length);
378 if(ret)
379 err("usb_submit_urb error (%d)", ret);
380
381 }
382
383
384 static void konicawc_isoc_irq(struct urb *urb, struct pt_regs *regs)
385 {
386 struct uvd *uvd = urb->context;
387 struct konicawc *cam = (struct konicawc *)uvd->user_data;
388
389 /* We don't want to do anything if we are about to be removed! */
390 if (!CAMERA_IS_OPERATIONAL(uvd))
391 return;
392
393 if (!uvd->streaming) {
394 DEBUG(1, "Not streaming, but interrupt!");
395 return;
396 }
397
398 DEBUG(3, "got frame %d len = %d buflen =%d", urb->start_frame, urb->actual_length, urb->transfer_buffer_length);
399
400 uvd->stats.urb_count++;
401
402 if (urb->transfer_buffer_length > 32) {
403 cam->last_data_urb = urb;
404 return;
405 }
406 /* Copy the data received into ring queue */
407 if(cam->last_data_urb) {
408 int len = 0;
409 if(urb->start_frame != cam->last_data_urb->start_frame)
410 err("Lost sync on frames");
411 else if (!urb->status && !cam->last_data_urb->status)
412 len = konicawc_compress_iso(uvd, cam->last_data_urb, urb);
413
414 resubmit_urb(uvd, cam->last_data_urb);
415 resubmit_urb(uvd, urb);
416 cam->last_data_urb = NULL;
417 uvd->stats.urb_length = len;
418 uvd->stats.data_count += len;
419 if(len)
420 RingQueue_WakeUpInterruptible(&uvd->dp);
421 return;
422 }
423 return;
424 }
425
426
427 static int konicawc_start_data(struct uvd *uvd)
428 {
429 struct usb_device *dev = uvd->dev;
430 int i, errFlag;
431 struct konicawc *cam = (struct konicawc *)uvd->user_data;
432 int pktsz;
433 struct usb_interface *intf;
434 struct usb_host_interface *interface = NULL;
435
436 intf = usb_ifnum_to_if(dev, uvd->iface);
437 if (intf)
438 interface = usb_altnum_to_altsetting(intf,
439 spd_to_iface[cam->speed]);
440 if (!interface)
441 return -ENXIO;
442 pktsz = le16_to_cpu(interface->endpoint[1].desc.wMaxPacketSize);
443 DEBUG(1, "pktsz = %d", pktsz);
444 if (!CAMERA_IS_OPERATIONAL(uvd)) {
445 err("Camera is not operational");
446 return -EFAULT;
447 }
448 uvd->curframe = -1;
449 konicawc_camera_on(uvd);
450 /* Alternate interface 1 is is the biggest frame size */
451 i = usb_set_interface(dev, uvd->iface, uvd->ifaceAltActive);
452 if (i < 0) {
453 err("usb_set_interface error");
454 uvd->last_error = i;
455 return -EBUSY;
456 }
457
458 /* We double buffer the Iso lists */
459 for (i=0; i < USBVIDEO_NUMSBUF; i++) {
460 int j, k;
461 struct urb *urb = uvd->sbuf[i].urb;
462 urb->dev = dev;
463 urb->context = uvd;
464 urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp);
465 urb->interval = 1;
466 urb->transfer_flags = URB_ISO_ASAP;
467 urb->transfer_buffer = uvd->sbuf[i].data;
468 urb->complete = konicawc_isoc_irq;
469 urb->number_of_packets = FRAMES_PER_DESC;
470 urb->transfer_buffer_length = pktsz * FRAMES_PER_DESC;
471 for (j=k=0; j < FRAMES_PER_DESC; j++, k += pktsz) {
472 urb->iso_frame_desc[j].offset = k;
473 urb->iso_frame_desc[j].length = pktsz;
474 }
475
476 urb = cam->sts_urb[i];
477 urb->dev = dev;
478 urb->context = uvd;
479 urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp-1);
480 urb->interval = 1;
481 urb->transfer_flags = URB_ISO_ASAP;
482 urb->transfer_buffer = cam->sts_buf[i];
483 urb->complete = konicawc_isoc_irq;
484 urb->number_of_packets = FRAMES_PER_DESC;
485 urb->transfer_buffer_length = FRAMES_PER_DESC;
486 for (j=0; j < FRAMES_PER_DESC; j++) {
487 urb->iso_frame_desc[j].offset = j;
488 urb->iso_frame_desc[j].length = 1;
489 }
490 }
491
492 cam->last_data_urb = NULL;
493
494 /* Submit all URBs */
495 for (i=0; i < USBVIDEO_NUMSBUF; i++) {
496 errFlag = usb_submit_urb(cam->sts_urb[i], GFP_KERNEL);
497 if (errFlag)
498 err("usb_submit_isoc(%d) ret %d", i, errFlag);
499
500 errFlag = usb_submit_urb(uvd->sbuf[i].urb, GFP_KERNEL);
501 if (errFlag)
502 err ("usb_submit_isoc(%d) ret %d", i, errFlag);
503 }
504
505 uvd->streaming = 1;
506 DEBUG(1, "streaming=1 video_endp=$%02x", uvd->video_endp);
507 return 0;
508 }
509
510
511 static void konicawc_stop_data(struct uvd *uvd)
512 {
513 int i, j;
514 struct konicawc *cam;
515
516 if ((uvd == NULL) || (!uvd->streaming) || (uvd->dev == NULL))
517 return;
518
519 konicawc_camera_off(uvd);
520 uvd->streaming = 0;
521 cam = (struct konicawc *)uvd->user_data;
522 cam->last_data_urb = NULL;
523
524 /* Unschedule all of the iso td's */
525 for (i=0; i < USBVIDEO_NUMSBUF; i++) {
526 usb_kill_urb(uvd->sbuf[i].urb);
527 usb_kill_urb(cam->sts_urb[i]);
528 }
529
530 if (!uvd->remove_pending) {
531 /* Set packet size to 0 */
532 j = usb_set_interface(uvd->dev, uvd->iface, uvd->ifaceAltInactive);
533 if (j < 0) {
534 err("usb_set_interface() error %d.", j);
535 uvd->last_error = j;
536 }
537 }
538 }
539
540
541 static void konicawc_process_isoc(struct uvd *uvd, struct usbvideo_frame *frame)
542 {
543 struct konicawc *cam = (struct konicawc *)uvd->user_data;
544 int maxline = cam->maxline;
545 int yplanesz = cam->yplanesz;
546
547 assert(frame != NULL);
548
549 DEBUG(5, "maxline = %d yplanesz = %d", maxline, yplanesz);
550 DEBUG(3, "Frame state = %d", frame->scanstate);
551
552 if(frame->scanstate == ScanState_Scanning) {
553 int drop = 0;
554 int curframe;
555 int fdrops = 0;
556 DEBUG(3, "Searching for marker, queue len = %d", RingQueue_GetLength(&uvd->dp));
557 while(RingQueue_GetLength(&uvd->dp) >= 4) {
558 if ((RING_QUEUE_PEEK(&uvd->dp, 0) == 0x00) &&
559 (RING_QUEUE_PEEK(&uvd->dp, 1) == 0xff) &&
560 (RING_QUEUE_PEEK(&uvd->dp, 2) == 0x00) &&
561 (RING_QUEUE_PEEK(&uvd->dp, 3) < 0x80)) {
562 curframe = RING_QUEUE_PEEK(&uvd->dp, 3);
563 if(cam->lastframe >= 0) {
564 fdrops = (0x80 + curframe - cam->lastframe) & 0x7F;
565 fdrops--;
566 if(fdrops) {
567 info("Dropped %d frames (%d -> %d)", fdrops,
568 cam->lastframe, curframe);
569 }
570 }
571 cam->lastframe = curframe;
572 frame->curline = 0;
573 frame->scanstate = ScanState_Lines;
574 RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 4);
575 break;
576 }
577 RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 1);
578 drop++;
579 }
580 if(drop)
581 DEBUG(2, "dropped %d bytes looking for new frame", drop);
582 }
583
584 if(frame->scanstate == ScanState_Scanning)
585 return;
586
587 /* Try to move data from queue into frame buffer
588 * We get data in blocks of 384 bytes made up of:
589 * 256 Y, 64 U, 64 V.
590 * This needs to be written out as a Y plane, a U plane and a V plane.
591 */
592
593 while ( frame->curline < maxline && (RingQueue_GetLength(&uvd->dp) >= 384)) {
594 /* Y */
595 RingQueue_Dequeue(&uvd->dp, frame->data + (frame->curline * 256), 256);
596 /* U */
597 RingQueue_Dequeue(&uvd->dp, frame->data + yplanesz + (frame->curline * 64), 64);
598 /* V */
599 RingQueue_Dequeue(&uvd->dp, frame->data + (5 * yplanesz)/4 + (frame->curline * 64), 64);
600 frame->seqRead_Length += 384;
601 frame->curline++;
602 }
603 /* See if we filled the frame */
604 if (frame->curline == maxline) {
605 DEBUG(5, "got whole frame");
606
607 frame->frameState = FrameState_Done_Hold;
608 frame->curline = 0;
609 uvd->curframe = -1;
610 uvd->stats.frame_num++;
611 }
612 }
613
614
615 static int konicawc_find_fps(int size, int fps)
616 {
617 int i;
618
619 fps *= 3;
620 DEBUG(1, "konica_find_fps: size = %d fps = %d", size, fps);
621 if(fps <= spd_to_fps[size][0])
622 return 0;
623
624 if(fps >= spd_to_fps[size][MAX_SPEED])
625 return MAX_SPEED;
626
627 for(i = 0; i < MAX_SPEED; i++) {
628 if((fps >= spd_to_fps[size][i]) && (fps <= spd_to_fps[size][i+1])) {
629 DEBUG(2, "fps %d between %d and %d", fps, i, i+1);
630 if( (fps - spd_to_fps[size][i]) < (spd_to_fps[size][i+1] - fps))
631 return i;
632 else
633 return i+1;
634 }
635 }
636 return MAX_SPEED+1;
637 }
638
639
640 static int konicawc_set_video_mode(struct uvd *uvd, struct video_window *vw)
641 {
642 struct konicawc *cam = (struct konicawc *)uvd->user_data;
643 int newspeed = cam->speed;
644 int newsize;
645 int x = vw->width;
646 int y = vw->height;
647 int fps = vw->flags;
648
649 if(x > 0 && y > 0) {
650 DEBUG(2, "trying to find size %d,%d", x, y);
651 for(newsize = 0; newsize <= MAX_FRAME_SIZE; newsize++) {
652 if((camera_sizes[newsize].width == x) && (camera_sizes[newsize].height == y))
653 break;
654 }
655 } else {
656 newsize = cam->size;
657 }
658
659 if(newsize > MAX_FRAME_SIZE) {
660 DEBUG(1, "couldn't find size %d,%d", x, y);
661 return -EINVAL;
662 }
663
664 if(fps > 0) {
665 DEBUG(1, "trying to set fps to %d", fps);
666 newspeed = konicawc_find_fps(newsize, fps);
667 DEBUG(1, "find_fps returned %d (%d)", newspeed, spd_to_fps[newsize][newspeed]);
668 }
669
670 if(newspeed > MAX_SPEED)
671 return -EINVAL;
672
673 DEBUG(1, "setting size to %d speed to %d", newsize, newspeed);
674 if((newsize == cam->size) && (newspeed == cam->speed)) {
675 DEBUG(1, "Nothing to do");
676 return 0;
677 }
678 DEBUG(0, "setting to %dx%d @ %d fps", camera_sizes[newsize].width,
679 camera_sizes[newsize].height, spd_to_fps[newsize][newspeed]/3);
680
681 konicawc_stop_data(uvd);
682 uvd->ifaceAltActive = spd_to_iface[newspeed];
683 DEBUG(1, "new interface = %d", uvd->ifaceAltActive);
684 cam->speed = newspeed;
685
686 if(cam->size != newsize) {
687 cam->size = newsize;
688 konicawc_set_camera_size(uvd);
689 }
690
691 /* Flush the input queue and clear any current frame in progress */
692
693 RingQueue_Flush(&uvd->dp);
694 cam->lastframe = -2;
695 if(uvd->curframe != -1) {
696 uvd->frame[uvd->curframe].curline = 0;
697 uvd->frame[uvd->curframe].seqRead_Length = 0;
698 uvd->frame[uvd->curframe].seqRead_Index = 0;
699 }
700
701 konicawc_start_data(uvd);
702 return 0;
703 }
704
705
706 static int konicawc_calculate_fps(struct uvd *uvd)
707 {
708 struct konicawc *cam = uvd->user_data;
709 return spd_to_fps[cam->size][cam->speed]/3;
710 }
711
712
713 static void konicawc_configure_video(struct uvd *uvd)
714 {
715 struct konicawc *cam = (struct konicawc *)uvd->user_data;
716 u8 buf[2];
717
718 memset(&uvd->vpic, 0, sizeof(uvd->vpic));
719 memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old));
720
721 RESTRICT_TO_RANGE(brightness, 0, MAX_BRIGHTNESS);
722 RESTRICT_TO_RANGE(contrast, 0, MAX_CONTRAST);
723 RESTRICT_TO_RANGE(saturation, 0, MAX_SATURATION);
724 RESTRICT_TO_RANGE(sharpness, 0, MAX_SHARPNESS);
725 RESTRICT_TO_RANGE(whitebal, 0, MAX_WHITEBAL);
726
727 cam->brightness = brightness / 11;
728 cam->contrast = contrast / 11;
729 cam->saturation = saturation / 11;
730 cam->sharpness = sharpness / 11;
731 cam->white_bal = whitebal / 11;
732
733 uvd->vpic.colour = 108;
734 uvd->vpic.hue = 108;
735 uvd->vpic.brightness = brightness;
736 uvd->vpic.contrast = contrast;
737 uvd->vpic.whiteness = whitebal;
738 uvd->vpic.depth = 6;
739 uvd->vpic.palette = VIDEO_PALETTE_YUV420P;
740
741 memset(&uvd->vcap, 0, sizeof(uvd->vcap));
742 strcpy(uvd->vcap.name, "Konica Webcam");
743 uvd->vcap.type = VID_TYPE_CAPTURE;
744 uvd->vcap.channels = 1;
745 uvd->vcap.audios = 0;
746 uvd->vcap.minwidth = camera_sizes[SIZE_160X120].width;
747 uvd->vcap.minheight = camera_sizes[SIZE_160X120].height;
748 uvd->vcap.maxwidth = camera_sizes[SIZE_320X240].width;
749 uvd->vcap.maxheight = camera_sizes[SIZE_320X240].height;
750
751 memset(&uvd->vchan, 0, sizeof(uvd->vchan));
752 uvd->vchan.flags = 0 ;
753 uvd->vchan.tuners = 0;
754 uvd->vchan.channel = 0;
755 uvd->vchan.type = VIDEO_TYPE_CAMERA;
756 strcpy(uvd->vchan.name, "Camera");
757
758 /* Talk to device */
759 DEBUG(1, "device init");
760 if(!konicawc_get_misc(uvd, 0x3, 0, 0x10, buf, 2))
761 DEBUG(2, "3,10 -> %2.2x %2.2x", buf[0], buf[1]);
762 if(!konicawc_get_misc(uvd, 0x3, 0, 0x10, buf, 2))
763 DEBUG(2, "3,10 -> %2.2x %2.2x", buf[0], buf[1]);
764 if(konicawc_set_misc(uvd, 0x2, 0, 0xd))
765 DEBUG(2, "2,0,d failed");
766 DEBUG(1, "setting initial values");
767 }
768
769 static int konicawc_probe(struct usb_interface *intf, const struct usb_device_id *devid)
770 {
771 struct usb_device *dev = interface_to_usbdev(intf);
772 struct uvd *uvd = NULL;
773 int ix, i, nas;
774 int actInterface=-1, inactInterface=-1, maxPS=0;
775 unsigned char video_ep = 0;
776
777 DEBUG(1, "konicawc_probe(%p)", intf);
778
779 /* We don't handle multi-config cameras */
780 if (dev->descriptor.bNumConfigurations != 1)
781 return -ENODEV;
782
783 info("Konica Webcam (rev. 0x%04x)", le16_to_cpu(dev->descriptor.bcdDevice));
784 RESTRICT_TO_RANGE(speed, 0, MAX_SPEED);
785
786 /* Validate found interface: must have one ISO endpoint */
787 nas = intf->num_altsetting;
788 if (nas != 8) {
789 err("Incorrect number of alternate settings (%d) for this camera!", nas);
790 return -ENODEV;
791 }
792 /* Validate all alternate settings */
793 for (ix=0; ix < nas; ix++) {
794 const struct usb_host_interface *interface;
795 const struct usb_endpoint_descriptor *endpoint;
796
797 interface = &intf->altsetting[ix];
798 i = interface->desc.bAlternateSetting;
799 if (interface->desc.bNumEndpoints != 2) {
800 err("Interface %d. has %u. endpoints!",
801 interface->desc.bInterfaceNumber,
802 (unsigned)(interface->desc.bNumEndpoints));
803 return -ENODEV;
804 }
805 endpoint = &interface->endpoint[1].desc;
806 DEBUG(1, "found endpoint: addr: 0x%2.2x maxps = 0x%4.4x",
807 endpoint->bEndpointAddress, le16_to_cpu(endpoint->wMaxPacketSize));
808 if (video_ep == 0)
809 video_ep = endpoint->bEndpointAddress;
810 else if (video_ep != endpoint->bEndpointAddress) {
811 err("Alternate settings have different endpoint addresses!");
812 return -ENODEV;
813 }
814 if ((endpoint->bmAttributes & 0x03) != 0x01) {
815 err("Interface %d. has non-ISO endpoint!",
816 interface->desc.bInterfaceNumber);
817 return -ENODEV;
818 }
819 if ((endpoint->bEndpointAddress & 0x80) == 0) {
820 err("Interface %d. has ISO OUT endpoint!",
821 interface->desc.bInterfaceNumber);
822 return -ENODEV;
823 }
824 if (le16_to_cpu(endpoint->wMaxPacketSize) == 0) {
825 if (inactInterface < 0)
826 inactInterface = i;
827 else {
828 err("More than one inactive alt. setting!");
829 return -ENODEV;
830 }
831 } else {
832 if (i == spd_to_iface[speed]) {
833 /* This one is the requested one */
834 actInterface = i;
835 }
836 }
837 if (le16_to_cpu(endpoint->wMaxPacketSize) > maxPS)
838 maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
839 }
840 if(actInterface == -1) {
841 err("Cant find required endpoint");
842 return -ENODEV;
843 }
844
845 DEBUG(1, "Selecting requested active setting=%d. maxPS=%d.", actInterface, maxPS);
846
847 uvd = usbvideo_AllocateDevice(cams);
848 if (uvd != NULL) {
849 struct konicawc *cam = (struct konicawc *)(uvd->user_data);
850 /* Here uvd is a fully allocated uvd object */
851 for(i = 0; i < USBVIDEO_NUMSBUF; i++) {
852 cam->sts_urb[i] = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL);
853 if(cam->sts_urb[i] == NULL) {
854 while(i--) {
855 usb_free_urb(cam->sts_urb[i]);
856 }
857 err("can't allocate urbs");
858 return -ENOMEM;
859 }
860 }
861 cam->speed = speed;
862 RESTRICT_TO_RANGE(size, SIZE_160X120, SIZE_320X240);
863 cam->width = camera_sizes[size].width;
864 cam->height = camera_sizes[size].height;
865 cam->size = size;
866
867 uvd->flags = 0;
868 uvd->debug = debug;
869 uvd->dev = dev;
870 uvd->iface = intf->altsetting->desc.bInterfaceNumber;
871 uvd->ifaceAltInactive = inactInterface;
872 uvd->ifaceAltActive = actInterface;
873 uvd->video_endp = video_ep;
874 uvd->iso_packet_len = maxPS;
875 uvd->paletteBits = 1L << VIDEO_PALETTE_YUV420P;
876 uvd->defaultPalette = VIDEO_PALETTE_YUV420P;
877 uvd->canvas = VIDEOSIZE(320, 240);
878 uvd->videosize = VIDEOSIZE(cam->width, cam->height);
879
880 /* Initialize konicawc specific data */
881 konicawc_configure_video(uvd);
882
883 i = usbvideo_RegisterVideoDevice(uvd);
884 uvd->max_frame_size = (320 * 240 * 3)/2;
885 if (i != 0) {
886 err("usbvideo_RegisterVideoDevice() failed.");
887 uvd = NULL;
888 }
889
890 konicawc_register_input(cam, dev);
891 }
892
893 if (uvd) {
894 usb_set_intfdata (intf, uvd);
895 return 0;
896 }
897 return -EIO;
898 }
899
900
901 static void konicawc_free_uvd(struct uvd *uvd)
902 {
903 int i;
904 struct konicawc *cam = (struct konicawc *)uvd->user_data;
905
906 konicawc_unregister_input(cam);
907
908 for (i = 0; i < USBVIDEO_NUMSBUF; i++) {
909 usb_free_urb(cam->sts_urb[i]);
910 cam->sts_urb[i] = NULL;
911 }
912 }
913
914
915 static struct usb_device_id id_table[] = {
916 { USB_DEVICE(0x04c8, 0x0720) }, /* Intel YC 76 */
917 { } /* Terminating entry */
918 };
919
920
921 static int __init konicawc_init(void)
922 {
923 struct usbvideo_cb cbTbl;
924 info(DRIVER_DESC " " DRIVER_VERSION);
925 memset(&cbTbl, 0, sizeof(cbTbl));
926 cbTbl.probe = konicawc_probe;
927 cbTbl.setupOnOpen = konicawc_setup_on_open;
928 cbTbl.processData = konicawc_process_isoc;
929 cbTbl.getFPS = konicawc_calculate_fps;
930 cbTbl.setVideoMode = konicawc_set_video_mode;
931 cbTbl.startDataPump = konicawc_start_data;
932 cbTbl.stopDataPump = konicawc_stop_data;
933 cbTbl.adjustPicture = konicawc_adjust_picture;
934 cbTbl.userFree = konicawc_free_uvd;
935 return usbvideo_register(
936 &cams,
937 MAX_CAMERAS,
938 sizeof(struct konicawc),
939 "konicawc",
940 &cbTbl,
941 THIS_MODULE,
942 id_table);
943 }
944
945
946 static void __exit konicawc_cleanup(void)
947 {
948 usbvideo_Deregister(&cams);
949 }
950
951
952 MODULE_DEVICE_TABLE(usb, id_table);
953
954 MODULE_LICENSE("GPL");
955 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
956 MODULE_DESCRIPTION(DRIVER_DESC);
957 module_param(speed, int, 0);
958 MODULE_PARM_DESC(speed, "Initial speed: 0 (slowest) - 6 (fastest)");
959 module_param(size, int, 0);
960 MODULE_PARM_DESC(size, "Initial Size 0: 160x120 1: 160x136 2: 176x144 3: 320x240");
961 module_param(brightness, int, 0);
962 MODULE_PARM_DESC(brightness, "Initial brightness 0 - 108");
963 module_param(contrast, int, 0);
964 MODULE_PARM_DESC(contrast, "Initial contrast 0 - 108");
965 module_param(saturation, int, 0);
966 MODULE_PARM_DESC(saturation, "Initial saturation 0 - 108");
967 module_param(sharpness, int, 0);
968 MODULE_PARM_DESC(sharpness, "Initial brightness 0 - 108");
969 module_param(whitebal, int, 0);
970 MODULE_PARM_DESC(whitebal, "Initial white balance 0 - 363");
971
972 #ifdef CONFIG_USB_DEBUG
973 module_param(debug, int, S_IRUGO | S_IWUSR);
974 MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
975 #endif
976
977 module_init(konicawc_init);
978 module_exit(konicawc_cleanup);
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