2 * konicawc.c - konica webcam driver
4 * Author: Simon Evans <spse@secret.org.uk>
6 * Copyright (C) 2002 Simon Evans
10 * Driver for USB webcams based on Konica chipset. This
11 * chipset is used in Intel YC76 camera.
15 #include <linux/kernel.h>
16 #include <linux/module.h>
17 #include <linux/init.h>
18 #include <linux/input.h>
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
32 #define DRIVER_VERSION "v1.4"
33 #define DRIVER_DESC "Konica Webcam driver"
52 #define MAX_FRAME_SIZE SIZE_320X240
54 static struct usbvideo *cams;
56 #ifdef CONFIG_USB_DEBUG
58 #define DEBUG(n, format, arg...) \
60 printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __FUNCTION__ , ## arg); \
63 #define DEBUG(n, arg...)
64 static const int debug = 0;
68 /* Some default values for inital camera settings,
69 can be set by modprobe */
71 static enum frame_sizes 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);
79 static int spd_to_iface[] = { 1, 0, 3, 2, 4, 5, 6 };
81 /* These FPS speeds are from the windows config box. They are
82 * indexed on size (0-3) and speed (0-6). Divide by 3 to get the
86 static 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 } };
97 static struct cam_size camera_sizes[] = { { 160, 120, 0x7 },
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 */
112 struct urb *sts_urb[USBVIDEO_NUMSBUF];
113 u8 sts_buf[USBVIDEO_NUMSBUF][FRAMES_PER_DESC];
114 struct urb *last_data_urb, *last_sts_urb;
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;
121 struct input_dev input;
126 #define konicawc_set_misc(uvd, req, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, req, value, index, NULL, 0)
127 #define konicawc_get_misc(uvd, req, value, index, buf, sz) konicawc_ctrl_msg(uvd, USB_DIR_IN, req, value, index, buf, sz)
128 #define konicawc_set_value(uvd, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, 2, value, index, NULL, 0)
131 static int konicawc_ctrl_msg(struct uvd *uvd, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
133 int retval = usb_control_msg(uvd->dev,
134 dir ? usb_rcvctrlpipe(uvd->dev, 0) : usb_sndctrlpipe(uvd->dev, 0),
135 request, 0x40 | dir, value, index, buf, len, HZ);
136 return retval < 0 ? retval : 0;
140 static inline void konicawc_camera_on(struct uvd *uvd)
142 DEBUG(0, "camera on");
143 konicawc_set_misc(uvd, 0x2, 1, 0x0b);
147 static inline void konicawc_camera_off(struct uvd *uvd)
149 DEBUG(0, "camera off");
150 konicawc_set_misc(uvd, 0x2, 0, 0x0b);
154 static void konicawc_set_camera_size(struct uvd *uvd)
156 struct konicawc *cam = (struct konicawc *)uvd->user_data;
158 konicawc_set_misc(uvd, 0x2, camera_sizes[cam->size].cmd, 0x08);
159 cam->width = camera_sizes[cam->size].width;
160 cam->height = camera_sizes[cam->size].height;
161 cam->yplanesz = cam->height * cam->width;
162 cam->cur_frame_size = (cam->yplanesz * 3) / 2;
163 cam->maxline = cam->yplanesz / 256;
164 uvd->videosize = VIDEOSIZE(cam->width, cam->height);
168 static int konicawc_setup_on_open(struct uvd *uvd)
170 struct konicawc *cam = (struct konicawc *)uvd->user_data;
172 DEBUG(1, "setting brightness to %d (%d)", cam->brightness,
173 cam->brightness * 11);
174 konicawc_set_value(uvd, cam->brightness, SetBrightness);
175 DEBUG(1, "setting white balance to %d (%d)", cam->white_bal,
176 cam->white_bal * 11);
177 konicawc_set_value(uvd, cam->white_bal, SetWhitebal);
178 DEBUG(1, "setting contrast to %d (%d)", cam->contrast,
180 konicawc_set_value(uvd, cam->contrast, SetContrast);
181 DEBUG(1, "setting saturation to %d (%d)", cam->saturation,
182 cam->saturation * 11);
183 konicawc_set_value(uvd, cam->saturation, SetSaturation);
184 DEBUG(1, "setting sharpness to %d (%d)", cam->sharpness,
185 cam->sharpness * 11);
186 konicawc_set_value(uvd, cam->sharpness, SetSharpness);
187 konicawc_set_camera_size(uvd);
194 static void konicawc_adjust_picture(struct uvd *uvd)
196 struct konicawc *cam = (struct konicawc *)uvd->user_data;
198 konicawc_camera_off(uvd);
199 DEBUG(1, "new brightness: %d", uvd->vpic.brightness);
200 uvd->vpic.brightness = (uvd->vpic.brightness > MAX_BRIGHTNESS) ? MAX_BRIGHTNESS : uvd->vpic.brightness;
201 if(cam->brightness != uvd->vpic.brightness / 11) {
202 cam->brightness = uvd->vpic.brightness / 11;
203 DEBUG(1, "setting brightness to %d (%d)", cam->brightness,
204 cam->brightness * 11);
205 konicawc_set_value(uvd, cam->brightness, SetBrightness);
208 DEBUG(1, "new contrast: %d", uvd->vpic.contrast);
209 uvd->vpic.contrast = (uvd->vpic.contrast > MAX_CONTRAST) ? MAX_CONTRAST : uvd->vpic.contrast;
210 if(cam->contrast != uvd->vpic.contrast / 11) {
211 cam->contrast = uvd->vpic.contrast / 11;
212 DEBUG(1, "setting contrast to %d (%d)", cam->contrast,
214 konicawc_set_value(uvd, cam->contrast, SetContrast);
216 konicawc_camera_on(uvd);
220 static int konicawc_compress_iso(struct uvd *uvd, struct urb *dataurb, struct urb *stsurb)
224 unsigned char *status = stsurb->transfer_buffer;
225 int keep = 0, discard = 0, bad = 0;
226 struct konicawc *cam = (struct konicawc *)uvd->user_data;
228 for (i = 0; i < dataurb->number_of_packets; i++) {
229 int button = cam->buttonsts;
231 int n = dataurb->iso_frame_desc[i].actual_length;
232 int st = dataurb->iso_frame_desc[i].status;
233 cdata = dataurb->transfer_buffer +
234 dataurb->iso_frame_desc[i].offset;
236 /* Detect and ignore errored packets */
238 DEBUG(1, "Data error: packet=%d. len=%d. status=%d.",
240 uvd->stats.iso_err_count++;
244 /* Detect and ignore empty packets */
246 uvd->stats.iso_skip_count++;
250 /* See what the status data said about the packet */
251 sts = *(status+stsurb->iso_frame_desc[i].offset);
253 /* sts: 0x80-0xff: frame start with frame number (ie 0-7f)
255 * bit 0 0: keep packet
256 * 1: drop packet (padding data)
258 * bit 4 0 button not clicked
260 * button is used to `take a picture' (in software)
264 button = !!(sts & 0x40);
268 /* work out the button status, but dont do
269 anything with it for now */
271 if(button != cam->buttonsts) {
272 DEBUG(2, "button: %sclicked", button ? "" : "un");
273 cam->buttonsts = button;
275 input_report_key(&cam->input, BTN_0, cam->buttonsts);
279 if(sts == 0x01) { /* drop frame */
284 if((sts > 0x01) && (sts < 0x80)) {
285 info("unknown status %2.2x", sts);
289 if(!sts && cam->lastframe == -2) {
290 DEBUG(2, "dropping frame looking for image start");
295 if(sts & 0x80) { /* frame start */
296 unsigned char marker[] = { 0, 0xff, 0, 0x00 };
298 if(cam->lastframe == -2) {
299 DEBUG(2, "found initial image");
303 marker[3] = sts & 0x7F;
304 RingQueue_Enqueue(&uvd->dp, marker, 4);
308 totlen += n; /* Little local accounting */
309 RingQueue_Enqueue(&uvd->dp, cdata, n);
311 DEBUG(8, "finished: keep = %d discard = %d bad = %d added %d bytes",
312 keep, discard, bad, totlen);
317 static void resubmit_urb(struct uvd *uvd, struct urb *urb)
320 for (i = 0; i < FRAMES_PER_DESC; i++) {
321 urb->iso_frame_desc[i].status = 0;
325 ret = usb_submit_urb(urb);
326 DEBUG(3, "submitting urb of length %d", urb->transfer_buffer_length);
328 err("usb_submit_urb error (%d)", ret);
333 static void konicawc_isoc_irq(struct urb *urb)
335 struct uvd *uvd = urb->context;
336 struct konicawc *cam = (struct konicawc *)uvd->user_data;
338 /* We don't want to do anything if we are about to be removed! */
339 if (!CAMERA_IS_OPERATIONAL(uvd))
342 if (!uvd->streaming) {
343 DEBUG(1, "Not streaming, but interrupt!");
347 DEBUG(3, "got frame %d len = %d buflen =%d", urb->start_frame, urb->actual_length, urb->transfer_buffer_length);
349 uvd->stats.urb_count++;
351 if (urb->transfer_buffer_length > 32) {
352 cam->last_data_urb = urb;
354 cam->last_sts_urb = urb;
356 /* Copy the data received into ring queue */
357 if(cam->last_data_urb && cam->last_sts_urb) {
359 if(cam->last_sts_urb->start_frame != cam->last_data_urb->start_frame)
360 err("Lost sync on frames (%d != %d)",
361 cam->last_sts_urb->start_frame, cam->last_data_urb->start_frame);
362 else if (!cam->last_sts_urb->status && !cam->last_data_urb->status)
363 len = konicawc_compress_iso(uvd, cam->last_data_urb,
366 resubmit_urb(uvd, cam->last_sts_urb);
367 resubmit_urb(uvd, cam->last_data_urb);
368 cam->last_data_urb = NULL;
369 cam->last_sts_urb = NULL;
370 uvd->stats.urb_length = len;
371 uvd->stats.data_count += len;
373 RingQueue_WakeUpInterruptible(&uvd->dp);
380 static int konicawc_start_data(struct uvd *uvd)
382 struct usb_device *dev = uvd->dev;
384 struct konicawc *cam = (struct konicawc *)uvd->user_data;
386 struct usb_interface_descriptor *interface;
388 interface = &dev->actconfig->interface[uvd->iface].altsetting[spd_to_iface[cam->speed]];
389 pktsz = interface->endpoint[1].wMaxPacketSize;
390 DEBUG(1, "pktsz = %d", pktsz);
391 if (!CAMERA_IS_OPERATIONAL(uvd)) {
392 err("Camera is not operational");
396 konicawc_camera_on(uvd);
397 /* Alternate interface 1 is is the biggest frame size */
398 i = usb_set_interface(dev, uvd->iface, uvd->ifaceAltActive);
400 err("usb_set_interface error");
405 /* We double buffer the Iso lists */
406 for (i=0; i < USBVIDEO_NUMSBUF; i++) {
408 struct urb *urb = uvd->sbuf[i].urb;
411 urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp);
413 urb->transfer_flags = USB_ISO_ASAP;
414 urb->transfer_buffer = uvd->sbuf[i].data;
415 urb->complete = konicawc_isoc_irq;
416 urb->number_of_packets = FRAMES_PER_DESC;
417 urb->transfer_buffer_length = pktsz * FRAMES_PER_DESC;
418 for (j=k=0; j < FRAMES_PER_DESC; j++, k += pktsz) {
419 urb->iso_frame_desc[j].offset = k;
420 urb->iso_frame_desc[j].length = pktsz;
423 urb = cam->sts_urb[i];
426 urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp-1);
428 urb->transfer_flags = USB_ISO_ASAP;
429 urb->transfer_buffer = cam->sts_buf[i];
430 urb->complete = konicawc_isoc_irq;
431 urb->number_of_packets = FRAMES_PER_DESC;
432 urb->transfer_buffer_length = FRAMES_PER_DESC;
433 for (j=0; j < FRAMES_PER_DESC; j++) {
434 urb->iso_frame_desc[j].offset = j;
435 urb->iso_frame_desc[j].length = 1;
439 cam->last_data_urb = NULL;
440 cam->last_sts_urb = NULL;
442 /* Submit all URBs */
443 for (i=0; i < USBVIDEO_NUMSBUF; i++) {
444 errFlag = usb_submit_urb(cam->sts_urb[i]);
446 err("usb_submit_isoc(%d) ret %d", i, errFlag);
448 errFlag = usb_submit_urb(uvd->sbuf[i].urb);
450 err ("usb_submit_isoc(%d) ret %d", i, errFlag);
454 DEBUG(1, "streaming=1 video_endp=$%02x", uvd->video_endp);
459 static void konicawc_stop_data(struct uvd *uvd)
462 struct konicawc *cam;
464 if ((uvd == NULL) || (!uvd->streaming) || (uvd->dev == NULL))
467 konicawc_camera_off(uvd);
469 cam = (struct konicawc *)uvd->user_data;
470 cam->last_data_urb = NULL;
471 cam->last_sts_urb = NULL;
473 /* Unschedule all of the iso td's */
474 for (i=0; i < USBVIDEO_NUMSBUF; i++) {
475 j = usb_unlink_urb(uvd->sbuf[i].urb);
477 err("usb_unlink_urb() error %d.", j);
479 j = usb_unlink_urb(cam->sts_urb[i]);
481 err("usb_unlink_urb() error %d.", j);
484 if (!uvd->remove_pending) {
485 /* Set packet size to 0 */
486 j = usb_set_interface(uvd->dev, uvd->iface, uvd->ifaceAltInactive);
488 err("usb_set_interface() error %d.", j);
495 static void konicawc_process_isoc(struct uvd *uvd, struct usbvideo_frame *frame)
497 struct konicawc *cam = (struct konicawc *)uvd->user_data;
498 int maxline = cam->maxline;
499 int yplanesz = cam->yplanesz;
501 assert(frame != NULL);
503 DEBUG(5, "maxline = %d yplanesz = %d", maxline, yplanesz);
504 DEBUG(3, "Frame state = %d", frame->scanstate);
506 if(frame->scanstate == ScanState_Scanning) {
510 DEBUG(3, "Searching for marker, queue len = %d", RingQueue_GetLength(&uvd->dp));
511 while(RingQueue_GetLength(&uvd->dp) >= 4) {
512 if ((RING_QUEUE_PEEK(&uvd->dp, 0) == 0x00) &&
513 (RING_QUEUE_PEEK(&uvd->dp, 1) == 0xff) &&
514 (RING_QUEUE_PEEK(&uvd->dp, 2) == 0x00) &&
515 (RING_QUEUE_PEEK(&uvd->dp, 3) < 0x80)) {
516 curframe = RING_QUEUE_PEEK(&uvd->dp, 3);
517 if(cam->lastframe >= 0) {
518 fdrops = (0x80 + curframe - cam->lastframe) & 0x7F;
521 info("Dropped %d frames (%d -> %d)", fdrops,
522 cam->lastframe, curframe);
525 cam->lastframe = curframe;
527 frame->scanstate = ScanState_Lines;
528 RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 4);
531 RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 1);
535 DEBUG(2, "dropped %d bytes looking for new frame", drop);
538 if(frame->scanstate == ScanState_Scanning)
541 /* Try to move data from queue into frame buffer
542 * We get data in blocks of 384 bytes made up of:
544 * This needs to be written out as a Y plane, a U plane and a V plane.
547 while ( frame->curline < maxline && (RingQueue_GetLength(&uvd->dp) >= 384)) {
549 RingQueue_Dequeue(&uvd->dp, frame->data + (frame->curline * 256), 256);
551 RingQueue_Dequeue(&uvd->dp, frame->data + yplanesz + (frame->curline * 64), 64);
553 RingQueue_Dequeue(&uvd->dp, frame->data + (5 * yplanesz)/4 + (frame->curline * 64), 64);
554 frame->seqRead_Length += 384;
557 /* See if we filled the frame */
558 if (frame->curline == maxline) {
559 DEBUG(5, "got whole frame");
561 frame->frameState = FrameState_Done_Hold;
564 uvd->stats.frame_num++;
569 static int konicawc_find_fps(int size, int fps)
574 DEBUG(1, "konica_find_fps: size = %d fps = %d", size, fps);
575 if(fps <= spd_to_fps[size][0])
578 if(fps >= spd_to_fps[size][MAX_SPEED])
581 for(i = 0; i < MAX_SPEED; i++) {
582 if((fps >= spd_to_fps[size][i]) && (fps <= spd_to_fps[size][i+1])) {
583 DEBUG(2, "fps %d between %d and %d", fps, i, i+1);
584 if( (fps - spd_to_fps[size][i]) < (spd_to_fps[size][i+1] - fps))
594 static int konicawc_set_video_mode(struct uvd *uvd, struct video_window *vw)
596 struct konicawc *cam = (struct konicawc *)uvd->user_data;
597 int newspeed = cam->speed;
604 DEBUG(2, "trying to find size %d,%d", x, y);
605 for(newsize = 0; newsize <= MAX_FRAME_SIZE; newsize++) {
606 if((camera_sizes[newsize].width == x) && (camera_sizes[newsize].height == y))
613 if(newsize > MAX_FRAME_SIZE) {
614 DEBUG(1, "couldnt find size %d,%d", x, y);
619 DEBUG(1, "trying to set fps to %d", fps);
620 newspeed = konicawc_find_fps(newsize, fps);
621 DEBUG(1, "find_fps returned %d (%d)", newspeed, spd_to_fps[newsize][newspeed]);
624 if(newspeed > MAX_SPEED)
627 DEBUG(1, "setting size to %d speed to %d", newsize, newspeed);
628 if((newsize == cam->size) && (newspeed == cam->speed)) {
629 DEBUG(1, "Nothing to do");
632 DEBUG(0, "setting to %dx%d @ %d fps", camera_sizes[newsize].width,
633 camera_sizes[newsize].height, spd_to_fps[newsize][newspeed]/3);
635 konicawc_stop_data(uvd);
636 uvd->ifaceAltActive = spd_to_iface[newspeed];
637 DEBUG(1, "new interface = %d", uvd->ifaceAltActive);
638 cam->speed = newspeed;
640 if(cam->size != newsize) {
642 konicawc_set_camera_size(uvd);
645 /* Flush the input queue and clear any current frame in progress */
647 RingQueue_Flush(&uvd->dp);
649 if(uvd->curframe != -1) {
650 uvd->frame[uvd->curframe].curline = 0;
651 uvd->frame[uvd->curframe].seqRead_Length = 0;
652 uvd->frame[uvd->curframe].seqRead_Index = 0;
655 konicawc_start_data(uvd);
660 static int konicawc_calculate_fps(struct uvd *uvd)
662 struct konicawc *cam = uvd->user_data;
663 return spd_to_fps[cam->size][cam->speed]/3;
667 static void konicawc_configure_video(struct uvd *uvd)
669 struct konicawc *cam = (struct konicawc *)uvd->user_data;
672 memset(&uvd->vpic, 0, sizeof(uvd->vpic));
673 memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old));
675 RESTRICT_TO_RANGE(brightness, 0, MAX_BRIGHTNESS);
676 RESTRICT_TO_RANGE(contrast, 0, MAX_CONTRAST);
677 RESTRICT_TO_RANGE(saturation, 0, MAX_SATURATION);
678 RESTRICT_TO_RANGE(sharpness, 0, MAX_SHARPNESS);
679 RESTRICT_TO_RANGE(whitebal, 0, MAX_WHITEBAL);
681 cam->brightness = brightness / 11;
682 cam->contrast = contrast / 11;
683 cam->saturation = saturation / 11;
684 cam->sharpness = sharpness / 11;
685 cam->white_bal = whitebal / 11;
687 uvd->vpic.colour = 108;
689 uvd->vpic.brightness = brightness;
690 uvd->vpic.contrast = contrast;
691 uvd->vpic.whiteness = whitebal;
693 uvd->vpic.palette = VIDEO_PALETTE_YUV420P;
695 memset(&uvd->vcap, 0, sizeof(uvd->vcap));
696 strcpy(uvd->vcap.name, "Konica Webcam");
697 uvd->vcap.type = VID_TYPE_CAPTURE;
698 uvd->vcap.channels = 1;
699 uvd->vcap.audios = 0;
700 uvd->vcap.minwidth = camera_sizes[SIZE_160X120].width;
701 uvd->vcap.minheight = camera_sizes[SIZE_160X120].height;
702 uvd->vcap.maxwidth = camera_sizes[SIZE_320X240].width;
703 uvd->vcap.maxheight = camera_sizes[SIZE_320X240].height;
705 memset(&uvd->vchan, 0, sizeof(uvd->vchan));
706 uvd->vchan.flags = 0 ;
707 uvd->vchan.tuners = 0;
708 uvd->vchan.channel = 0;
709 uvd->vchan.type = VIDEO_TYPE_CAMERA;
710 strcpy(uvd->vchan.name, "Camera");
713 DEBUG(1, "device init");
714 if(!konicawc_get_misc(uvd, 0x3, 0, 0x10, buf, 2))
715 DEBUG(2, "3,10 -> %2.2x %2.2x", buf[0], buf[1]);
716 if(!konicawc_get_misc(uvd, 0x3, 0, 0x10, buf, 2))
717 DEBUG(2, "3,10 -> %2.2x %2.2x", buf[0], buf[1]);
718 if(konicawc_set_misc(uvd, 0x2, 0, 0xd))
719 DEBUG(2, "2,0,d failed");
720 DEBUG(1, "setting initial values");
724 static void *konicawc_probe(struct usb_device *dev, unsigned int ifnum, const struct usb_device_id *devid)
726 struct uvd *uvd = NULL;
728 int actInterface=-1, inactInterface=-1, maxPS=0;
729 unsigned char video_ep = 0;
731 DEBUG(1, "konicawc_probe(%p,%u.)", dev, ifnum);
733 /* We don't handle multi-config cameras */
734 if (dev->descriptor.bNumConfigurations != 1)
737 info("Konica Webcam (rev. 0x%04x)", dev->descriptor.bcdDevice);
738 RESTRICT_TO_RANGE(speed, 0, MAX_SPEED);
740 /* Validate found interface: must have one ISO endpoint */
741 nas = dev->actconfig->interface[ifnum].num_altsetting;
743 err("Incorrect number of alternate settings (%d) for this camera!", nas);
746 /* Validate all alternate settings */
747 for (i=0; i < nas; i++) {
748 const struct usb_interface_descriptor *interface;
749 const struct usb_endpoint_descriptor *endpoint;
751 interface = &dev->actconfig->interface[ifnum].altsetting[i];
752 if (interface->bNumEndpoints != 2) {
753 err("Interface %d. has %u. endpoints!",
754 ifnum, (unsigned)(interface->bNumEndpoints));
757 endpoint = &interface->endpoint[1];
758 DEBUG(1, "found endpoint: addr: 0x%2.2x maxps = 0x%4.4x",
759 endpoint->bEndpointAddress, endpoint->wMaxPacketSize);
761 video_ep = endpoint->bEndpointAddress;
762 else if (video_ep != endpoint->bEndpointAddress) {
763 err("Alternate settings have different endpoint addresses!");
766 if ((endpoint->bmAttributes & 0x03) != 0x01) {
767 err("Interface %d. has non-ISO endpoint!", ifnum);
770 if ((endpoint->bEndpointAddress & 0x80) == 0) {
771 err("Interface %d. has ISO OUT endpoint!", ifnum);
774 if (endpoint->wMaxPacketSize == 0) {
775 if (inactInterface < 0)
778 err("More than one inactive alt. setting!");
782 if (i == spd_to_iface[speed]) {
783 /* This one is the requested one */
787 if(endpoint->wMaxPacketSize > maxPS)
788 maxPS = endpoint->wMaxPacketSize;
790 if(actInterface == -1) {
791 err("Cant find required endpoint");
795 DEBUG(1, "Selecting requested active setting=%d. maxPS=%d.", actInterface, maxPS);
797 /* Code below may sleep, need to lock module while we are here */
799 uvd = usbvideo_AllocateDevice(cams);
801 struct konicawc *cam = (struct konicawc *)(uvd->user_data);
802 /* Here uvd is a fully allocated uvd object */
803 for(i = 0; i < USBVIDEO_NUMSBUF; i++) {
804 cam->sts_urb[i] = usb_alloc_urb(FRAMES_PER_DESC);
805 if(cam->sts_urb[i] == NULL) {
807 usb_free_urb(cam->sts_urb[i]);
809 err("cant allocate urbs");
814 RESTRICT_TO_RANGE(size, SIZE_160X120, SIZE_320X240);
815 cam->width = camera_sizes[size].width;
816 cam->height = camera_sizes[size].height;
823 uvd->ifaceAltInactive = inactInterface;
824 uvd->ifaceAltActive = actInterface;
825 uvd->video_endp = video_ep;
826 uvd->iso_packet_len = maxPS;
827 uvd->paletteBits = 1L << VIDEO_PALETTE_YUV420P;
828 uvd->defaultPalette = VIDEO_PALETTE_YUV420P;
829 uvd->canvas = VIDEOSIZE(320, 240);
830 uvd->videosize = VIDEOSIZE(cam->width, cam->height);
832 /* Initialize konicawc specific data */
833 konicawc_configure_video(uvd);
835 i = usbvideo_RegisterVideoDevice(uvd);
836 uvd->max_frame_size = (320 * 240 * 3)/2;
838 err("usbvideo_RegisterVideoDevice() failed.");
842 /* Register input device for button */
843 memset(&cam->input, 0, sizeof(struct input_dev));
844 cam->input.name = "Konicawc snapshot button";
845 cam->input.private = cam;
846 cam->input.evbit[0] = BIT(EV_KEY);
847 cam->input.keybit[LONG(BTN_0)] = BIT(BTN_0);
848 cam->input.idbus = BUS_USB;
849 cam->input.idvendor = dev->descriptor.idVendor;
850 cam->input.idproduct = dev->descriptor.idProduct;
851 cam->input.idversion = dev->descriptor.bcdDevice;
852 input_register_device(&cam->input);
860 static void konicawc_free_uvd(struct uvd *uvd)
863 struct konicawc *cam = (struct konicawc *)uvd->user_data;
866 input_unregister_device(&cam->input);
868 for (i=0; i < USBVIDEO_NUMSBUF; i++) {
869 usb_free_urb(cam->sts_urb[i]);
870 cam->sts_urb[i] = NULL;
875 static struct usb_device_id id_table[] = {
876 { USB_DEVICE(0x04c8, 0x0720) }, /* Intel YC 76 */
877 { } /* Terminating entry */
881 static int __init konicawc_init(void)
883 struct usbvideo_cb cbTbl;
884 info(DRIVER_DESC " " DRIVER_VERSION);
885 memset(&cbTbl, 0, sizeof(cbTbl));
886 cbTbl.probe = konicawc_probe;
887 cbTbl.setupOnOpen = konicawc_setup_on_open;
888 cbTbl.processData = konicawc_process_isoc;
889 cbTbl.getFPS = konicawc_calculate_fps;
890 cbTbl.setVideoMode = konicawc_set_video_mode;
891 cbTbl.startDataPump = konicawc_start_data;
892 cbTbl.stopDataPump = konicawc_stop_data;
893 cbTbl.adjustPicture = konicawc_adjust_picture;
894 cbTbl.userFree = konicawc_free_uvd;
895 return usbvideo_register(
898 sizeof(struct konicawc),
906 static void __exit konicawc_cleanup(void)
908 usbvideo_Deregister(&cams);
912 MODULE_DEVICE_TABLE(usb, id_table);
914 MODULE_LICENSE("GPL");
915 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
916 MODULE_DESCRIPTION(DRIVER_DESC);
917 MODULE_PARM(speed, "i");
918 MODULE_PARM_DESC(speed, "Initial speed: 0 (slowest) - 6 (fastest)");
919 MODULE_PARM(size, "i");
920 MODULE_PARM_DESC(size, "Initial Size 0: 160x120 1: 160x136 2: 176x144 3: 320x240");
921 MODULE_PARM(brightness, "i");
922 MODULE_PARM_DESC(brightness, "Initial brightness 0 - 108");
923 MODULE_PARM(contrast, "i");
924 MODULE_PARM_DESC(contrast, "Initial contrast 0 - 108");
925 MODULE_PARM(saturation, "i");
926 MODULE_PARM_DESC(saturation, "Initial saturation 0 - 108");
927 MODULE_PARM(sharpness, "i");
928 MODULE_PARM_DESC(sharpness, "Initial sharpness 0 - 108");
929 MODULE_PARM(whitebal, "i");
930 MODULE_PARM_DESC(whitebal, "Initial white balance 0 - 363");
932 #ifdef CONFIG_USB_DEBUG
933 MODULE_PARM(debug, "i");
934 MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
937 module_init(konicawc_init);
938 module_exit(konicawc_cleanup);