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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[wrt350n-kernel.git] / drivers / media / video / usbvideo / konicawc.c
blob719b17ce83f832c87bf2ce50590af74d0a266bc0
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/usb/input.h>
19
20 #include "usbvideo.h"
21
22 #define MAX_BRIGHTNESS 108
23 #define MAX_CONTRAST 108
24 #define MAX_SATURATION 108
25 #define MAX_SHARPNESS 108
26 #define MAX_WHITEBAL 372
27 #define MAX_SPEED 6
28
29
30 #define MAX_CAMERAS 1
31
32 #define DRIVER_VERSION "v1.4"
33 #define DRIVER_DESC "Konica Webcam driver"
34
35 enum ctrl_req {
36 SetWhitebal = 0x01,
37 SetBrightness = 0x02,
38 SetSharpness = 0x03,
39 SetContrast = 0x04,
40 SetSaturation = 0x05,
41 };
42
43
44 enum frame_sizes {
45 SIZE_160X120 = 0,
46 SIZE_160X136 = 1,
47 SIZE_176X144 = 2,
48 SIZE_320X240 = 3,
49
50 };
51
52 #define MAX_FRAME_SIZE SIZE_320X240
53
54 static struct usbvideo *cams;
55
56 #ifdef CONFIG_USB_DEBUG
57 static int debug;
58 #define DEBUG(n, format, arg...) \
59 if (n <= debug) { \
60 printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __FUNCTION__ , ## arg); \
61 }
62 #else
63 #define DEBUG(n, arg...)
64 static const int debug = 0;
65 #endif
66
67
68 /* Some default values for initial camera settings,
69 can be set by modprobe */
70
71 static int size;
72 static int speed = 6; /* Speed (fps) 0 (slowest) to 6 (fastest) */
73 static int brightness = MAX_BRIGHTNESS/2;
74 static int contrast = MAX_CONTRAST/2;
75 static int saturation = MAX_SATURATION/2;
76 static int sharpness = MAX_SHARPNESS/2;
77 static int whitebal = 3*(MAX_WHITEBAL/4);
78
79 static const int spd_to_iface[] = { 1, 0, 3, 2, 4, 5, 6 };
80
81 /* These FPS speeds are from the windows config box. They are
82 * indexed on size (0-2) and speed (0-6). Divide by 3 to get the
83 * real fps.
84 */
85
86 static const int spd_to_fps[][7] = { { 24, 40, 48, 60, 72, 80, 100 },
87 { 24, 40, 48, 60, 72, 80, 100 },
88 { 18, 30, 36, 45, 54, 60, 75 },
89 { 6, 10, 12, 15, 18, 21, 25 } };
90
91 struct cam_size {
92 u16 width;
93 u16 height;
94 u8 cmd;
95 };
96
97 static const struct cam_size camera_sizes[] = { { 160, 120, 0x7 },
98 { 160, 136, 0xa },
99 { 176, 144, 0x4 },
100 { 320, 240, 0x5 } };
101
102 struct konicawc {
103 u8 brightness; /* camera uses 0 - 9, x11 for real value */
104 u8 contrast; /* as above */
105 u8 saturation; /* as above */
106 u8 sharpness; /* as above */
107 u8 white_bal; /* 0 - 33, x11 for real value */
108 u8 speed; /* Stored as 0 - 6, used as index in spd_to_* (above) */
109 u8 size; /* Frame Size */
110 int height;
111 int width;
112 struct urb *sts_urb[USBVIDEO_NUMSBUF];
113 u8 sts_buf[USBVIDEO_NUMSBUF][FRAMES_PER_DESC];
114 struct urb *last_data_urb;
115 int lastframe;
116 int cur_frame_size; /* number of bytes in current frame size */
117 int maxline; /* number of lines per frame */
118 int yplanesz; /* Number of bytes in the Y plane */
119 unsigned int buttonsts:1;
120 #ifdef CONFIG_INPUT
121 struct input_dev *input;
122 char input_physname[64];
123 #endif
124 };
125
126
127 #define konicawc_set_misc(uvd, req, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, req, value, index, NULL, 0)
128 #define konicawc_get_misc(uvd, req, value, index, buf, sz) konicawc_ctrl_msg(uvd, USB_DIR_IN, req, value, index, buf, sz)
129 #define konicawc_set_value(uvd, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, 2, value, index, NULL, 0)
130
131
132 static int konicawc_ctrl_msg(struct uvd *uvd, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
133 {
134 int retval = usb_control_msg(uvd->dev,
135 dir ? usb_rcvctrlpipe(uvd->dev, 0) : usb_sndctrlpipe(uvd->dev, 0),
136 request, 0x40 | dir, value, index, buf, len, 1000);
137 return retval < 0 ? retval : 0;
138 }
139
140
141 static inline void konicawc_camera_on(struct uvd *uvd)
142 {
143 DEBUG(0, "camera on");
144 konicawc_set_misc(uvd, 0x2, 1, 0x0b);
145 }
146
147
148 static inline void konicawc_camera_off(struct uvd *uvd)
149 {
150 DEBUG(0, "camera off");
151 konicawc_set_misc(uvd, 0x2, 0, 0x0b);
152 }
153
154
155 static void konicawc_set_camera_size(struct uvd *uvd)
156 {
157 struct konicawc *cam = (struct konicawc *)uvd->user_data;
158
159 konicawc_set_misc(uvd, 0x2, camera_sizes[cam->size].cmd, 0x08);
160 cam->width = camera_sizes[cam->size].width;
161 cam->height = camera_sizes[cam->size].height;
162 cam->yplanesz = cam->height * cam->width;
163 cam->cur_frame_size = (cam->yplanesz * 3) / 2;
164 cam->maxline = cam->yplanesz / 256;
165 uvd->videosize = VIDEOSIZE(cam->width, cam->height);
166 }
167
168
169 static int konicawc_setup_on_open(struct uvd *uvd)
170 {
171 struct konicawc *cam = (struct konicawc *)uvd->user_data;
172
173 DEBUG(1, "setting brightness to %d (%d)", cam->brightness,
174 cam->brightness * 11);
175 konicawc_set_value(uvd, cam->brightness, SetBrightness);
176 DEBUG(1, "setting white balance to %d (%d)", cam->white_bal,
177 cam->white_bal * 11);
178 konicawc_set_value(uvd, cam->white_bal, SetWhitebal);
179 DEBUG(1, "setting contrast to %d (%d)", cam->contrast,
180 cam->contrast * 11);
181 konicawc_set_value(uvd, cam->contrast, SetContrast);
182 DEBUG(1, "setting saturation to %d (%d)", cam->saturation,
183 cam->saturation * 11);
184 konicawc_set_value(uvd, cam->saturation, SetSaturation);
185 DEBUG(1, "setting sharpness to %d (%d)", cam->sharpness,
186 cam->sharpness * 11);
187 konicawc_set_value(uvd, cam->sharpness, SetSharpness);
188 konicawc_set_camera_size(uvd);
189 cam->lastframe = -2;
190 cam->buttonsts = 0;
191 return 0;
192 }
193
194
195 static void konicawc_adjust_picture(struct uvd *uvd)
196 {
197 struct konicawc *cam = (struct konicawc *)uvd->user_data;
198
199 konicawc_camera_off(uvd);
200 DEBUG(1, "new brightness: %d", uvd->vpic.brightness);
201 uvd->vpic.brightness = (uvd->vpic.brightness > MAX_BRIGHTNESS) ? MAX_BRIGHTNESS : uvd->vpic.brightness;
202 if(cam->brightness != uvd->vpic.brightness / 11) {
203 cam->brightness = uvd->vpic.brightness / 11;
204 DEBUG(1, "setting brightness to %d (%d)", cam->brightness,
205 cam->brightness * 11);
206 konicawc_set_value(uvd, cam->brightness, SetBrightness);
207 }
208
209 DEBUG(1, "new contrast: %d", uvd->vpic.contrast);
210 uvd->vpic.contrast = (uvd->vpic.contrast > MAX_CONTRAST) ? MAX_CONTRAST : uvd->vpic.contrast;
211 if(cam->contrast != uvd->vpic.contrast / 11) {
212 cam->contrast = uvd->vpic.contrast / 11;
213 DEBUG(1, "setting contrast to %d (%d)", cam->contrast,
214 cam->contrast * 11);
215 konicawc_set_value(uvd, cam->contrast, SetContrast);
216 }
217 konicawc_camera_on(uvd);
218 }
219
220 #ifdef CONFIG_INPUT
221
222 static void konicawc_register_input(struct konicawc *cam, struct usb_device *dev)
223 {
224 struct input_dev *input_dev;
225 int error;
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->dev.parent = &dev->dev;
240
241 input_dev->evbit[0] = BIT_MASK(EV_KEY);
242 input_dev->keybit[BIT_WORD(BTN_0)] = BIT_MASK(BTN_0);
243
244 error = input_register_device(cam->input);
245 if (error) {
246 warn("Failed to register camera's input device, err: %d\n",
247 error);
248 input_free_device(cam->input);
249 cam->input = NULL;
250 }
251 }
252
253 static void konicawc_unregister_input(struct konicawc *cam)
254 {
255 if (cam->input) {
256 input_unregister_device(cam->input);
257 cam->input = NULL;
258 }
259 }
260
261 static void konicawc_report_buttonstat(struct konicawc *cam)
262 {
263 if (cam->input) {
264 input_report_key(cam->input, BTN_0, cam->buttonsts);
265 input_sync(cam->input);
266 }
267 }
268
269 #else
270
271 static inline void konicawc_register_input(struct konicawc *cam, struct usb_device *dev) { }
272 static inline void konicawc_unregister_input(struct konicawc *cam) { }
273 static inline void konicawc_report_buttonstat(struct konicawc *cam) { }
274
275 #endif /* CONFIG_INPUT */
276
277 static int konicawc_compress_iso(struct uvd *uvd, struct urb *dataurb, struct urb *stsurb)
278 {
279 char *cdata;
280 int i, totlen = 0;
281 unsigned char *status = stsurb->transfer_buffer;
282 int keep = 0, discard = 0, bad = 0;
283 struct konicawc *cam = (struct konicawc *)uvd->user_data;
284
285 for (i = 0; i < dataurb->number_of_packets; i++) {
286 int button = cam->buttonsts;
287 unsigned char sts;
288 int n = dataurb->iso_frame_desc[i].actual_length;
289 int st = dataurb->iso_frame_desc[i].status;
290 cdata = dataurb->transfer_buffer +
291 dataurb->iso_frame_desc[i].offset;
292
293 /* Detect and ignore errored packets */
294 if (st < 0) {
295 DEBUG(1, "Data error: packet=%d. len=%d. status=%d.",
296 i, n, st);
297 uvd->stats.iso_err_count++;
298 continue;
299 }
300
301 /* Detect and ignore empty packets */
302 if (n <= 0) {
303 uvd->stats.iso_skip_count++;
304 continue;
305 }
306
307 /* See what the status data said about the packet */
308 sts = *(status+stsurb->iso_frame_desc[i].offset);
309
310 /* sts: 0x80-0xff: frame start with frame number (ie 0-7f)
311 * otherwise:
312 * bit 0 0: keep packet
313 * 1: drop packet (padding data)
314 *
315 * bit 4 0 button not clicked
316 * 1 button clicked
317 * button is used to `take a picture' (in software)
318 */
319
320 if(sts < 0x80) {
321 button = !!(sts & 0x40);
322 sts &= ~0x40;
323 }
324
325 /* work out the button status, but don't do
326 anything with it for now */
327
328 if(button != cam->buttonsts) {
329 DEBUG(2, "button: %sclicked", button ? "" : "un");
330 cam->buttonsts = button;
331 konicawc_report_buttonstat(cam);
332 }
333
334 if(sts == 0x01) { /* drop frame */
335 discard++;
336 continue;
337 }
338
339 if((sts > 0x01) && (sts < 0x80)) {
340 info("unknown status %2.2x", sts);
341 bad++;
342 continue;
343 }
344 if(!sts && cam->lastframe == -2) {
345 DEBUG(2, "dropping frame looking for image start");
346 continue;
347 }
348
349 keep++;
350 if(sts & 0x80) { /* frame start */
351 unsigned char marker[] = { 0, 0xff, 0, 0x00 };
352
353 if(cam->lastframe == -2) {
354 DEBUG(2, "found initial image");
355 cam->lastframe = -1;
356 }
357
358 marker[3] = sts & 0x7F;
359 RingQueue_Enqueue(&uvd->dp, marker, 4);
360 totlen += 4;
361 }
362
363 totlen += n; /* Little local accounting */
364 RingQueue_Enqueue(&uvd->dp, cdata, n);
365 }
366 DEBUG(8, "finished: keep = %d discard = %d bad = %d added %d bytes",
367 keep, discard, bad, totlen);
368 return totlen;
369 }
370
371
372 static void resubmit_urb(struct uvd *uvd, struct urb *urb)
373 {
374 int i, ret;
375 for (i = 0; i < FRAMES_PER_DESC; i++) {
376 urb->iso_frame_desc[i].status = 0;
377 }
378 urb->dev = uvd->dev;
379 urb->status = 0;
380 ret = usb_submit_urb(urb, GFP_ATOMIC);
381 DEBUG(3, "submitting urb of length %d", urb->transfer_buffer_length);
382 if(ret)
383 err("usb_submit_urb error (%d)", ret);
384
385 }
386
387
388 static void konicawc_isoc_irq(struct urb *urb)
389 {
390 struct uvd *uvd = urb->context;
391 struct konicawc *cam = (struct konicawc *)uvd->user_data;
392
393 /* We don't want to do anything if we are about to be removed! */
394 if (!CAMERA_IS_OPERATIONAL(uvd))
395 return;
396
397 if (!uvd->streaming) {
398 DEBUG(1, "Not streaming, but interrupt!");
399 return;
400 }
401
402 DEBUG(3, "got frame %d len = %d buflen =%d", urb->start_frame, urb->actual_length, urb->transfer_buffer_length);
403
404 uvd->stats.urb_count++;
405
406 if (urb->transfer_buffer_length > 32) {
407 cam->last_data_urb = urb;
408 return;
409 }
410 /* Copy the data received into ring queue */
411 if(cam->last_data_urb) {
412 int len = 0;
413 if(urb->start_frame != cam->last_data_urb->start_frame)
414 err("Lost sync on frames");
415 else if (!urb->status && !cam->last_data_urb->status)
416 len = konicawc_compress_iso(uvd, cam->last_data_urb, urb);
417
418 resubmit_urb(uvd, cam->last_data_urb);
419 resubmit_urb(uvd, urb);
420 cam->last_data_urb = NULL;
421 uvd->stats.urb_length = len;
422 uvd->stats.data_count += len;
423 if(len)
424 RingQueue_WakeUpInterruptible(&uvd->dp);
425 return;
426 }
427 return;
428 }
429
430
431 static int konicawc_start_data(struct uvd *uvd)
432 {
433 struct usb_device *dev = uvd->dev;
434 int i, errFlag;
435 struct konicawc *cam = (struct konicawc *)uvd->user_data;
436 int pktsz;
437 struct usb_interface *intf;
438 struct usb_host_interface *interface = NULL;
439
440 intf = usb_ifnum_to_if(dev, uvd->iface);
441 if (intf)
442 interface = usb_altnum_to_altsetting(intf,
443 spd_to_iface[cam->speed]);
444 if (!interface)
445 return -ENXIO;
446 pktsz = le16_to_cpu(interface->endpoint[1].desc.wMaxPacketSize);
447 DEBUG(1, "pktsz = %d", pktsz);
448 if (!CAMERA_IS_OPERATIONAL(uvd)) {
449 err("Camera is not operational");
450 return -EFAULT;
451 }
452 uvd->curframe = -1;
453 konicawc_camera_on(uvd);
454 /* Alternate interface 1 is is the biggest frame size */
455 i = usb_set_interface(dev, uvd->iface, uvd->ifaceAltActive);
456 if (i < 0) {
457 err("usb_set_interface error");
458 uvd->last_error = i;
459 return -EBUSY;
460 }
461
462 /* We double buffer the Iso lists */
463 for (i=0; i < USBVIDEO_NUMSBUF; i++) {
464 int j, k;
465 struct urb *urb = uvd->sbuf[i].urb;
466 urb->dev = dev;
467 urb->context = uvd;
468 urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp);
469 urb->interval = 1;
470 urb->transfer_flags = URB_ISO_ASAP;
471 urb->transfer_buffer = uvd->sbuf[i].data;
472 urb->complete = konicawc_isoc_irq;
473 urb->number_of_packets = FRAMES_PER_DESC;
474 urb->transfer_buffer_length = pktsz * FRAMES_PER_DESC;
475 for (j=k=0; j < FRAMES_PER_DESC; j++, k += pktsz) {
476 urb->iso_frame_desc[j].offset = k;
477 urb->iso_frame_desc[j].length = pktsz;
478 }
479
480 urb = cam->sts_urb[i];
481 urb->dev = dev;
482 urb->context = uvd;
483 urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp-1);
484 urb->interval = 1;
485 urb->transfer_flags = URB_ISO_ASAP;
486 urb->transfer_buffer = cam->sts_buf[i];
487 urb->complete = konicawc_isoc_irq;
488 urb->number_of_packets = FRAMES_PER_DESC;
489 urb->transfer_buffer_length = FRAMES_PER_DESC;
490 for (j=0; j < FRAMES_PER_DESC; j++) {
491 urb->iso_frame_desc[j].offset = j;
492 urb->iso_frame_desc[j].length = 1;
493 }
494 }
495
496 cam->last_data_urb = NULL;
497
498 /* Submit all URBs */
499 for (i=0; i < USBVIDEO_NUMSBUF; i++) {
500 errFlag = usb_submit_urb(cam->sts_urb[i], GFP_KERNEL);
501 if (errFlag)
502 err("usb_submit_isoc(%d) ret %d", i, errFlag);
503
504 errFlag = usb_submit_urb(uvd->sbuf[i].urb, GFP_KERNEL);
505 if (errFlag)
506 err ("usb_submit_isoc(%d) ret %d", i, errFlag);
507 }
508
509 uvd->streaming = 1;
510 DEBUG(1, "streaming=1 video_endp=$%02x", uvd->video_endp);
511 return 0;
512 }
513
514
515 static void konicawc_stop_data(struct uvd *uvd)
516 {
517 int i, j;
518 struct konicawc *cam;
519
520 if ((uvd == NULL) || (!uvd->streaming) || (uvd->dev == NULL))
521 return;
522
523 konicawc_camera_off(uvd);
524 uvd->streaming = 0;
525 cam = (struct konicawc *)uvd->user_data;
526 cam->last_data_urb = NULL;
527
528 /* Unschedule all of the iso td's */
529 for (i=0; i < USBVIDEO_NUMSBUF; i++) {
530 usb_kill_urb(uvd->sbuf[i].urb);
531 usb_kill_urb(cam->sts_urb[i]);
532 }
533
534 if (!uvd->remove_pending) {
535 /* Set packet size to 0 */
536 j = usb_set_interface(uvd->dev, uvd->iface, uvd->ifaceAltInactive);
537 if (j < 0) {
538 err("usb_set_interface() error %d.", j);
539 uvd->last_error = j;
540 }
541 }
542 }
543
544
545 static void konicawc_process_isoc(struct uvd *uvd, struct usbvideo_frame *frame)
546 {
547 struct konicawc *cam = (struct konicawc *)uvd->user_data;
548 int maxline = cam->maxline;
549 int yplanesz = cam->yplanesz;
550
551 assert(frame != NULL);
552
553 DEBUG(5, "maxline = %d yplanesz = %d", maxline, yplanesz);
554 DEBUG(3, "Frame state = %d", frame->scanstate);
555
556 if(frame->scanstate == ScanState_Scanning) {
557 int drop = 0;
558 int curframe;
559 int fdrops = 0;
560 DEBUG(3, "Searching for marker, queue len = %d", RingQueue_GetLength(&uvd->dp));
561 while(RingQueue_GetLength(&uvd->dp) >= 4) {
562 if ((RING_QUEUE_PEEK(&uvd->dp, 0) == 0x00) &&
563 (RING_QUEUE_PEEK(&uvd->dp, 1) == 0xff) &&
564 (RING_QUEUE_PEEK(&uvd->dp, 2) == 0x00) &&
565 (RING_QUEUE_PEEK(&uvd->dp, 3) < 0x80)) {
566 curframe = RING_QUEUE_PEEK(&uvd->dp, 3);
567 if(cam->lastframe >= 0) {
568 fdrops = (0x80 + curframe - cam->lastframe) & 0x7F;
569 fdrops--;
570 if(fdrops) {
571 info("Dropped %d frames (%d -> %d)", fdrops,
572 cam->lastframe, curframe);
573 }
574 }
575 cam->lastframe = curframe;
576 frame->curline = 0;
577 frame->scanstate = ScanState_Lines;
578 RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 4);
579 break;
580 }
581 RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 1);
582 drop++;
583 }
584 if(drop)
585 DEBUG(2, "dropped %d bytes looking for new frame", drop);
586 }
587
588 if(frame->scanstate == ScanState_Scanning)
589 return;
590
591 /* Try to move data from queue into frame buffer
592 * We get data in blocks of 384 bytes made up of:
593 * 256 Y, 64 U, 64 V.
594 * This needs to be written out as a Y plane, a U plane and a V plane.
595 */
596
597 while ( frame->curline < maxline && (RingQueue_GetLength(&uvd->dp) >= 384)) {
598 /* Y */
599 RingQueue_Dequeue(&uvd->dp, frame->data + (frame->curline * 256), 256);
600 /* U */
601 RingQueue_Dequeue(&uvd->dp, frame->data + yplanesz + (frame->curline * 64), 64);
602 /* V */
603 RingQueue_Dequeue(&uvd->dp, frame->data + (5 * yplanesz)/4 + (frame->curline * 64), 64);
604 frame->seqRead_Length += 384;
605 frame->curline++;
606 }
607 /* See if we filled the frame */
608 if (frame->curline == maxline) {
609 DEBUG(5, "got whole frame");
610
611 frame->frameState = FrameState_Done_Hold;
612 frame->curline = 0;
613 uvd->curframe = -1;
614 uvd->stats.frame_num++;
615 }
616 }
617
618
619 static int konicawc_find_fps(int size, int fps)
620 {
621 int i;
622
623 fps *= 3;
624 DEBUG(1, "konica_find_fps: size = %d fps = %d", size, fps);
625 if(fps <= spd_to_fps[size][0])
626 return 0;
627
628 if(fps >= spd_to_fps[size][MAX_SPEED])
629 return MAX_SPEED;
630
631 for(i = 0; i < MAX_SPEED; i++) {
632 if((fps >= spd_to_fps[size][i]) && (fps <= spd_to_fps[size][i+1])) {
633 DEBUG(2, "fps %d between %d and %d", fps, i, i+1);
634 if( (fps - spd_to_fps[size][i]) < (spd_to_fps[size][i+1] - fps))
635 return i;
636 else
637 return i+1;
638 }
639 }
640 return MAX_SPEED+1;
641 }
642
643
644 static int konicawc_set_video_mode(struct uvd *uvd, struct video_window *vw)
645 {
646 struct konicawc *cam = (struct konicawc *)uvd->user_data;
647 int newspeed = cam->speed;
648 int newsize;
649 int x = vw->width;
650 int y = vw->height;
651 int fps = vw->flags;
652
653 if(x > 0 && y > 0) {
654 DEBUG(2, "trying to find size %d,%d", x, y);
655 for(newsize = 0; newsize <= MAX_FRAME_SIZE; newsize++) {
656 if((camera_sizes[newsize].width == x) && (camera_sizes[newsize].height == y))
657 break;
658 }
659 } else {
660 newsize = cam->size;
661 }
662
663 if(newsize > MAX_FRAME_SIZE) {
664 DEBUG(1, "couldn't find size %d,%d", x, y);
665 return -EINVAL;
666 }
667
668 if(fps > 0) {
669 DEBUG(1, "trying to set fps to %d", fps);
670 newspeed = konicawc_find_fps(newsize, fps);
671 DEBUG(1, "find_fps returned %d (%d)", newspeed, spd_to_fps[newsize][newspeed]);
672 }
673
674 if(newspeed > MAX_SPEED)
675 return -EINVAL;
676
677 DEBUG(1, "setting size to %d speed to %d", newsize, newspeed);
678 if((newsize == cam->size) && (newspeed == cam->speed)) {
679 DEBUG(1, "Nothing to do");
680 return 0;
681 }
682 DEBUG(0, "setting to %dx%d @ %d fps", camera_sizes[newsize].width,
683 camera_sizes[newsize].height, spd_to_fps[newsize][newspeed]/3);
684
685 konicawc_stop_data(uvd);
686 uvd->ifaceAltActive = spd_to_iface[newspeed];
687 DEBUG(1, "new interface = %d", uvd->ifaceAltActive);
688 cam->speed = newspeed;
689
690 if(cam->size != newsize) {
691 cam->size = newsize;
692 konicawc_set_camera_size(uvd);
693 }
694
695 /* Flush the input queue and clear any current frame in progress */
696
697 RingQueue_Flush(&uvd->dp);
698 cam->lastframe = -2;
699 if(uvd->curframe != -1) {
700 uvd->frame[uvd->curframe].curline = 0;
701 uvd->frame[uvd->curframe].seqRead_Length = 0;
702 uvd->frame[uvd->curframe].seqRead_Index = 0;
703 }
704
705 konicawc_start_data(uvd);
706 return 0;
707 }
708
709
710 static int konicawc_calculate_fps(struct uvd *uvd)
711 {
712 struct konicawc *cam = uvd->user_data;
713 return spd_to_fps[cam->size][cam->speed]/3;
714 }
715
716
717 static void konicawc_configure_video(struct uvd *uvd)
718 {
719 struct konicawc *cam = (struct konicawc *)uvd->user_data;
720 u8 buf[2];
721
722 memset(&uvd->vpic, 0, sizeof(uvd->vpic));
723 memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old));
724
725 RESTRICT_TO_RANGE(brightness, 0, MAX_BRIGHTNESS);
726 RESTRICT_TO_RANGE(contrast, 0, MAX_CONTRAST);
727 RESTRICT_TO_RANGE(saturation, 0, MAX_SATURATION);
728 RESTRICT_TO_RANGE(sharpness, 0, MAX_SHARPNESS);
729 RESTRICT_TO_RANGE(whitebal, 0, MAX_WHITEBAL);
730
731 cam->brightness = brightness / 11;
732 cam->contrast = contrast / 11;
733 cam->saturation = saturation / 11;
734 cam->sharpness = sharpness / 11;
735 cam->white_bal = whitebal / 11;
736
737 uvd->vpic.colour = 108;
738 uvd->vpic.hue = 108;
739 uvd->vpic.brightness = brightness;
740 uvd->vpic.contrast = contrast;
741 uvd->vpic.whiteness = whitebal;
742 uvd->vpic.depth = 6;
743 uvd->vpic.palette = VIDEO_PALETTE_YUV420P;
744
745 memset(&uvd->vcap, 0, sizeof(uvd->vcap));
746 strcpy(uvd->vcap.name, "Konica Webcam");
747 uvd->vcap.type = VID_TYPE_CAPTURE;
748 uvd->vcap.channels = 1;
749 uvd->vcap.audios = 0;
750 uvd->vcap.minwidth = camera_sizes[SIZE_160X120].width;
751 uvd->vcap.minheight = camera_sizes[SIZE_160X120].height;
752 uvd->vcap.maxwidth = camera_sizes[SIZE_320X240].width;
753 uvd->vcap.maxheight = camera_sizes[SIZE_320X240].height;
754
755 memset(&uvd->vchan, 0, sizeof(uvd->vchan));
756 uvd->vchan.flags = 0 ;
757 uvd->vchan.tuners = 0;
758 uvd->vchan.channel = 0;
759 uvd->vchan.type = VIDEO_TYPE_CAMERA;
760 strcpy(uvd->vchan.name, "Camera");
761
762 /* Talk to device */
763 DEBUG(1, "device init");
764 if(!konicawc_get_misc(uvd, 0x3, 0, 0x10, buf, 2))
765 DEBUG(2, "3,10 -> %2.2x %2.2x", buf[0], buf[1]);
766 if(!konicawc_get_misc(uvd, 0x3, 0, 0x10, buf, 2))
767 DEBUG(2, "3,10 -> %2.2x %2.2x", buf[0], buf[1]);
768 if(konicawc_set_misc(uvd, 0x2, 0, 0xd))
769 DEBUG(2, "2,0,d failed");
770 DEBUG(1, "setting initial values");
771 }
772
773 static int konicawc_probe(struct usb_interface *intf, const struct usb_device_id *devid)
774 {
775 struct usb_device *dev = interface_to_usbdev(intf);
776 struct uvd *uvd = NULL;
777 int ix, i, nas;
778 int actInterface=-1, inactInterface=-1, maxPS=0;
779 unsigned char video_ep = 0;
780
781 DEBUG(1, "konicawc_probe(%p)", intf);
782
783 /* We don't handle multi-config cameras */
784 if (dev->descriptor.bNumConfigurations != 1)
785 return -ENODEV;
786
787 info("Konica Webcam (rev. 0x%04x)", le16_to_cpu(dev->descriptor.bcdDevice));
788 RESTRICT_TO_RANGE(speed, 0, MAX_SPEED);
789
790 /* Validate found interface: must have one ISO endpoint */
791 nas = intf->num_altsetting;
792 if (nas != 8) {
793 err("Incorrect number of alternate settings (%d) for this camera!", nas);
794 return -ENODEV;
795 }
796 /* Validate all alternate settings */
797 for (ix=0; ix < nas; ix++) {
798 const struct usb_host_interface *interface;
799 const struct usb_endpoint_descriptor *endpoint;
800
801 interface = &intf->altsetting[ix];
802 i = interface->desc.bAlternateSetting;
803 if (interface->desc.bNumEndpoints != 2) {
804 err("Interface %d. has %u. endpoints!",
805 interface->desc.bInterfaceNumber,
806 (unsigned)(interface->desc.bNumEndpoints));
807 return -ENODEV;
808 }
809 endpoint = &interface->endpoint[1].desc;
810 DEBUG(1, "found endpoint: addr: 0x%2.2x maxps = 0x%4.4x",
811 endpoint->bEndpointAddress, le16_to_cpu(endpoint->wMaxPacketSize));
812 if (video_ep == 0)
813 video_ep = endpoint->bEndpointAddress;
814 else if (video_ep != endpoint->bEndpointAddress) {
815 err("Alternate settings have different endpoint addresses!");
816 return -ENODEV;
817 }
818 if ((endpoint->bmAttributes & 0x03) != 0x01) {
819 err("Interface %d. has non-ISO endpoint!",
820 interface->desc.bInterfaceNumber);
821 return -ENODEV;
822 }
823 if ((endpoint->bEndpointAddress & 0x80) == 0) {
824 err("Interface %d. has ISO OUT endpoint!",
825 interface->desc.bInterfaceNumber);
826 return -ENODEV;
827 }
828 if (le16_to_cpu(endpoint->wMaxPacketSize) == 0) {
829 if (inactInterface < 0)
830 inactInterface = i;
831 else {
832 err("More than one inactive alt. setting!");
833 return -ENODEV;
834 }
835 } else {
836 if (i == spd_to_iface[speed]) {
837 /* This one is the requested one */
838 actInterface = i;
839 }
840 }
841 if (le16_to_cpu(endpoint->wMaxPacketSize) > maxPS)
842 maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
843 }
844 if(actInterface == -1) {
845 err("Cant find required endpoint");
846 return -ENODEV;
847 }
848
849 DEBUG(1, "Selecting requested active setting=%d. maxPS=%d.", actInterface, maxPS);
850
851 uvd = usbvideo_AllocateDevice(cams);
852 if (uvd != NULL) {
853 struct konicawc *cam = (struct konicawc *)(uvd->user_data);
854 /* Here uvd is a fully allocated uvd object */
855 for(i = 0; i < USBVIDEO_NUMSBUF; i++) {
856 cam->sts_urb[i] = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL);
857 if(cam->sts_urb[i] == NULL) {
858 while(i--) {
859 usb_free_urb(cam->sts_urb[i]);
860 }
861 err("can't allocate urbs");
862 return -ENOMEM;
863 }
864 }
865 cam->speed = speed;
866 RESTRICT_TO_RANGE(size, SIZE_160X120, SIZE_320X240);
867 cam->width = camera_sizes[size].width;
868 cam->height = camera_sizes[size].height;
869 cam->size = size;
870
871 uvd->flags = 0;
872 uvd->debug = debug;
873 uvd->dev = dev;
874 uvd->iface = intf->altsetting->desc.bInterfaceNumber;
875 uvd->ifaceAltInactive = inactInterface;
876 uvd->ifaceAltActive = actInterface;
877 uvd->video_endp = video_ep;
878 uvd->iso_packet_len = maxPS;
879 uvd->paletteBits = 1L << VIDEO_PALETTE_YUV420P;
880 uvd->defaultPalette = VIDEO_PALETTE_YUV420P;
881 uvd->canvas = VIDEOSIZE(320, 240);
882 uvd->videosize = VIDEOSIZE(cam->width, cam->height);
883
884 /* Initialize konicawc specific data */
885 konicawc_configure_video(uvd);
886
887 i = usbvideo_RegisterVideoDevice(uvd);
888 uvd->max_frame_size = (320 * 240 * 3)/2;
889 if (i != 0) {
890 err("usbvideo_RegisterVideoDevice() failed.");
891 uvd = NULL;
892 }
893
894 konicawc_register_input(cam, dev);
895 }
896
897 if (uvd) {
898 usb_set_intfdata (intf, uvd);
899 return 0;
900 }
901 return -EIO;
902 }
903
904
905 static void konicawc_free_uvd(struct uvd *uvd)
906 {
907 int i;
908 struct konicawc *cam = (struct konicawc *)uvd->user_data;
909
910 konicawc_unregister_input(cam);
911
912 for (i = 0; i < USBVIDEO_NUMSBUF; i++) {
913 usb_free_urb(cam->sts_urb[i]);
914 cam->sts_urb[i] = NULL;
915 }
916 }
917
918
919 static struct usb_device_id id_table[] = {
920 { USB_DEVICE(0x04c8, 0x0720) }, /* Intel YC 76 */
921 { } /* Terminating entry */
922 };
923
924
925 static int __init konicawc_init(void)
926 {
927 struct usbvideo_cb cbTbl;
928 info(DRIVER_DESC " " DRIVER_VERSION);
929 memset(&cbTbl, 0, sizeof(cbTbl));
930 cbTbl.probe = konicawc_probe;
931 cbTbl.setupOnOpen = konicawc_setup_on_open;
932 cbTbl.processData = konicawc_process_isoc;
933 cbTbl.getFPS = konicawc_calculate_fps;
934 cbTbl.setVideoMode = konicawc_set_video_mode;
935 cbTbl.startDataPump = konicawc_start_data;
936 cbTbl.stopDataPump = konicawc_stop_data;
937 cbTbl.adjustPicture = konicawc_adjust_picture;
938 cbTbl.userFree = konicawc_free_uvd;
939 return usbvideo_register(
940 &cams,
941 MAX_CAMERAS,
942 sizeof(struct konicawc),
943 "konicawc",
944 &cbTbl,
945 THIS_MODULE,
946 id_table);
947 }
948
949
950 static void __exit konicawc_cleanup(void)
951 {
952 usbvideo_Deregister(&cams);
953 }
954
955
956 MODULE_DEVICE_TABLE(usb, id_table);
957
958 MODULE_LICENSE("GPL");
959 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
960 MODULE_DESCRIPTION(DRIVER_DESC);
961 module_param(speed, int, 0);
962 MODULE_PARM_DESC(speed, "Initial speed: 0 (slowest) - 6 (fastest)");
963 module_param(size, int, 0);
964 MODULE_PARM_DESC(size, "Initial Size 0: 160x120 1: 160x136 2: 176x144 3: 320x240");
965 module_param(brightness, int, 0);
966 MODULE_PARM_DESC(brightness, "Initial brightness 0 - 108");
967 module_param(contrast, int, 0);
968 MODULE_PARM_DESC(contrast, "Initial contrast 0 - 108");
969 module_param(saturation, int, 0);
970 MODULE_PARM_DESC(saturation, "Initial saturation 0 - 108");
971 module_param(sharpness, int, 0);
972 MODULE_PARM_DESC(sharpness, "Initial brightness 0 - 108");
973 module_param(whitebal, int, 0);
974 MODULE_PARM_DESC(whitebal, "Initial white balance 0 - 363");
975
976 #ifdef CONFIG_USB_DEBUG
977 module_param(debug, int, S_IRUGO | S_IWUSR);
978 MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
979 #endif
980
981 module_init(konicawc_init);
982 module_exit(konicawc_cleanup);
WRT350N Kernel Patches