1 /* Linux driver for Philips webcam
2 USB and Video4Linux interface part.
3 (C) 1999-2004 Nemosoft Unv.
4 (C) 2004-2006 Luc Saillard (luc@saillard.org)
6 NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
7 driver and thus may have bugs that are not present in the original version.
8 Please send bug reports and support requests to <luc@saillard.org>.
9 The decompression routines have been implemented by reverse-engineering the
10 Nemosoft binary pwcx module. Caveat emptor.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 #include <linux/errno.h>
29 #include <linux/init.h>
31 #include <linux/module.h>
32 #include <linux/poll.h>
33 #include <linux/vmalloc.h>
38 static struct v4l2_queryctrl pwc_controls[] = {
40 .id = V4L2_CID_BRIGHTNESS,
41 .type = V4L2_CTRL_TYPE_INTEGER,
49 .id = V4L2_CID_CONTRAST,
50 .type = V4L2_CTRL_TYPE_INTEGER,
58 .id = V4L2_CID_SATURATION,
59 .type = V4L2_CTRL_TYPE_INTEGER,
68 .type = V4L2_CTRL_TYPE_INTEGER,
76 .id = V4L2_CID_RED_BALANCE,
77 .type = V4L2_CTRL_TYPE_INTEGER,
85 .id = V4L2_CID_BLUE_BALANCE,
86 .type = V4L2_CTRL_TYPE_INTEGER,
94 .id = V4L2_CID_AUTO_WHITE_BALANCE,
95 .type = V4L2_CTRL_TYPE_BOOLEAN,
96 .name = "Auto White Balance",
103 .id = V4L2_CID_EXPOSURE,
104 .type = V4L2_CTRL_TYPE_INTEGER,
105 .name = "Shutter Speed (Exposure)",
109 .default_value = 200,
112 .id = V4L2_CID_AUTOGAIN,
113 .type = V4L2_CTRL_TYPE_BOOLEAN,
114 .name = "Auto Gain Enabled",
122 .type = V4L2_CTRL_TYPE_INTEGER,
123 .name = "Gain Level",
130 .id = V4L2_CID_PRIVATE_SAVE_USER,
131 .type = V4L2_CTRL_TYPE_BUTTON,
132 .name = "Save User Settings",
139 .id = V4L2_CID_PRIVATE_RESTORE_USER,
140 .type = V4L2_CTRL_TYPE_BUTTON,
141 .name = "Restore User Settings",
148 .id = V4L2_CID_PRIVATE_RESTORE_FACTORY,
149 .type = V4L2_CTRL_TYPE_BUTTON,
150 .name = "Restore Factory Settings",
157 .id = V4L2_CID_PRIVATE_COLOUR_MODE,
158 .type = V4L2_CTRL_TYPE_BOOLEAN,
159 .name = "Colour mode",
166 .id = V4L2_CID_PRIVATE_AUTOCONTOUR,
167 .type = V4L2_CTRL_TYPE_BOOLEAN,
168 .name = "Auto contour",
175 .id = V4L2_CID_PRIVATE_CONTOUR,
176 .type = V4L2_CTRL_TYPE_INTEGER,
184 .id = V4L2_CID_PRIVATE_BACKLIGHT,
185 .type = V4L2_CTRL_TYPE_BOOLEAN,
186 .name = "Backlight compensation",
193 .id = V4L2_CID_PRIVATE_FLICKERLESS,
194 .type = V4L2_CTRL_TYPE_BOOLEAN,
195 .name = "Flickerless",
202 .id = V4L2_CID_PRIVATE_NOISE_REDUCTION,
203 .type = V4L2_CTRL_TYPE_INTEGER,
204 .name = "Noise reduction",
213 static void pwc_vidioc_fill_fmt(const struct pwc_device *pdev, struct v4l2_format *f)
215 memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format));
216 f->fmt.pix.width = pdev->view.x;
217 f->fmt.pix.height = pdev->view.y;
218 f->fmt.pix.field = V4L2_FIELD_NONE;
219 if (pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
220 f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420;
221 f->fmt.pix.bytesperline = (f->fmt.pix.width * 3)/2;
222 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
224 /* vbandlength contains 4 lines ... */
225 f->fmt.pix.bytesperline = pdev->vbandlength/4;
226 f->fmt.pix.sizeimage = pdev->frame_size + sizeof(struct pwc_raw_frame);
227 if (DEVICE_USE_CODEC1(pdev->type))
228 f->fmt.pix.pixelformat = V4L2_PIX_FMT_PWC1;
230 f->fmt.pix.pixelformat = V4L2_PIX_FMT_PWC2;
232 PWC_DEBUG_IOCTL("pwc_vidioc_fill_fmt() "
233 "width=%d, height=%d, bytesperline=%d, sizeimage=%d, pixelformat=%c%c%c%c\n",
236 f->fmt.pix.bytesperline,
237 f->fmt.pix.sizeimage,
238 (f->fmt.pix.pixelformat)&255,
239 (f->fmt.pix.pixelformat>>8)&255,
240 (f->fmt.pix.pixelformat>>16)&255,
241 (f->fmt.pix.pixelformat>>24)&255);
244 /* ioctl(VIDIOC_TRY_FMT) */
245 static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f)
247 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
248 PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
252 switch (f->fmt.pix.pixelformat) {
253 case V4L2_PIX_FMT_YUV420:
255 case V4L2_PIX_FMT_PWC1:
256 if (DEVICE_USE_CODEC23(pdev->type)) {
257 PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n");
261 case V4L2_PIX_FMT_PWC2:
262 if (DEVICE_USE_CODEC1(pdev->type)) {
263 PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n");
268 PWC_DEBUG_IOCTL("Unsupported pixel format\n");
273 if (f->fmt.pix.width > pdev->view_max.x)
274 f->fmt.pix.width = pdev->view_max.x;
275 else if (f->fmt.pix.width < pdev->view_min.x)
276 f->fmt.pix.width = pdev->view_min.x;
278 if (f->fmt.pix.height > pdev->view_max.y)
279 f->fmt.pix.height = pdev->view_max.y;
280 else if (f->fmt.pix.height < pdev->view_min.y)
281 f->fmt.pix.height = pdev->view_min.y;
286 /* ioctl(VIDIOC_SET_FMT) */
287 static int pwc_vidioc_set_fmt(struct pwc_device *pdev, struct v4l2_format *f)
289 int ret, fps, snapshot, compression, pixelformat;
291 ret = pwc_vidioc_try_fmt(pdev, f);
295 pixelformat = f->fmt.pix.pixelformat;
296 compression = pdev->vcompression;
299 if (f->fmt.pix.priv) {
300 compression = (f->fmt.pix.priv & PWC_QLT_MASK) >> PWC_QLT_SHIFT;
301 snapshot = !!(f->fmt.pix.priv & PWC_FPS_SNAPSHOT);
302 fps = (f->fmt.pix.priv & PWC_FPS_FRMASK) >> PWC_FPS_SHIFT;
307 if (pixelformat != V4L2_PIX_FMT_YUV420 &&
308 pixelformat != V4L2_PIX_FMT_PWC1 &&
309 pixelformat != V4L2_PIX_FMT_PWC2)
315 PWC_DEBUG_IOCTL("Trying to set format to: width=%d height=%d fps=%d "
316 "compression=%d snapshot=%d format=%c%c%c%c\n",
317 f->fmt.pix.width, f->fmt.pix.height, fps,
318 compression, snapshot,
320 (pixelformat>>8)&255,
321 (pixelformat>>16)&255,
322 (pixelformat>>24)&255);
324 ret = pwc_set_video_mode(pdev,
331 PWC_DEBUG_IOCTL("pwc_set_video_mode(), return=%d\n", ret);
336 pdev->pixfmt = pixelformat;
338 pwc_vidioc_fill_fmt(pdev, f);
344 long pwc_video_do_ioctl(struct file *file, unsigned int cmd, void *arg)
346 struct video_device *vdev = video_devdata(file);
347 struct pwc_device *pdev;
348 DECLARE_WAITQUEUE(wait, current);
352 pdev = video_get_drvdata(vdev);
356 #ifdef CONFIG_USB_PWC_DEBUG
357 if (PWC_DEBUG_LEVEL_IOCTL & pwc_trace) {
358 v4l_printk_ioctl(cmd);
365 #ifdef CONFIG_VIDEO_V4L1_COMPAT
366 /* mmap() functions */
369 /* Tell the user program how much memory is needed for a mmap() */
370 struct video_mbuf *vm = arg;
373 memset(vm, 0, sizeof(*vm));
374 vm->size = pwc_mbufs * pdev->len_per_image;
375 vm->frames = pwc_mbufs; /* double buffering should be enough for most applications */
376 for (i = 0; i < pwc_mbufs; i++)
377 vm->offsets[i] = i * pdev->len_per_image;
383 case VIDIOC_QUERYCAP:
385 struct v4l2_capability *cap = arg;
387 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCAP) This application "\
388 "try to use the v4l2 layer\n");
389 strcpy(cap->driver,PWC_NAME);
390 strlcpy(cap->card, vdev->name, sizeof(cap->card));
391 usb_make_path(pdev->udev,cap->bus_info,sizeof(cap->bus_info));
392 cap->version = PWC_VERSION_CODE;
394 V4L2_CAP_VIDEO_CAPTURE |
400 case VIDIOC_ENUMINPUT:
402 struct v4l2_input *i = arg;
404 if ( i->index ) /* Only one INPUT is supported */
407 memset(i, 0, sizeof(struct v4l2_input));
408 strcpy(i->name, "usb");
415 *i = 0; /* Only one INPUT is supported */
422 if ( *i ) { /* Only one INPUT is supported */
423 PWC_DEBUG_IOCTL("Only one input source is"\
424 " supported with this webcam.\n");
431 case VIDIOC_QUERYCTRL:
433 struct v4l2_queryctrl *c = arg;
436 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) query id=%d\n", c->id);
437 for (i=0; i<sizeof(pwc_controls)/sizeof(struct v4l2_queryctrl); i++) {
438 if (pwc_controls[i].id == c->id) {
439 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) found\n");
440 memcpy(c,&pwc_controls[i],sizeof(struct v4l2_queryctrl));
444 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) not found\n");
450 struct v4l2_control *c = arg;
455 case V4L2_CID_BRIGHTNESS:
456 c->value = pwc_get_brightness(pdev);
460 case V4L2_CID_CONTRAST:
461 c->value = pwc_get_contrast(pdev);
465 case V4L2_CID_SATURATION:
466 ret = pwc_get_saturation(pdev, &c->value);
471 c->value = pwc_get_gamma(pdev);
475 case V4L2_CID_RED_BALANCE:
476 ret = pwc_get_red_gain(pdev, &c->value);
481 case V4L2_CID_BLUE_BALANCE:
482 ret = pwc_get_blue_gain(pdev, &c->value);
487 case V4L2_CID_AUTO_WHITE_BALANCE:
488 ret = pwc_get_awb(pdev);
491 c->value = (ret == PWC_WB_MANUAL)?0:1;
494 ret = pwc_get_agc(pdev, &c->value);
499 case V4L2_CID_AUTOGAIN:
500 ret = pwc_get_agc(pdev, &c->value);
503 c->value = (c->value < 0)?1:0;
505 case V4L2_CID_EXPOSURE:
506 ret = pwc_get_shutter_speed(pdev, &c->value);
510 case V4L2_CID_PRIVATE_COLOUR_MODE:
511 ret = pwc_get_colour_mode(pdev, &c->value);
515 case V4L2_CID_PRIVATE_AUTOCONTOUR:
516 ret = pwc_get_contour(pdev, &c->value);
519 c->value=(c->value == -1?1:0);
521 case V4L2_CID_PRIVATE_CONTOUR:
522 ret = pwc_get_contour(pdev, &c->value);
527 case V4L2_CID_PRIVATE_BACKLIGHT:
528 ret = pwc_get_backlight(pdev, &c->value);
532 case V4L2_CID_PRIVATE_FLICKERLESS:
533 ret = pwc_get_flicker(pdev, &c->value);
536 c->value=(c->value?1:0);
538 case V4L2_CID_PRIVATE_NOISE_REDUCTION:
539 ret = pwc_get_dynamic_noise(pdev, &c->value);
544 case V4L2_CID_PRIVATE_SAVE_USER:
545 case V4L2_CID_PRIVATE_RESTORE_USER:
546 case V4L2_CID_PRIVATE_RESTORE_FACTORY:
553 struct v4l2_control *c = arg;
558 case V4L2_CID_BRIGHTNESS:
560 ret = pwc_set_brightness(pdev, c->value);
564 case V4L2_CID_CONTRAST:
566 ret = pwc_set_contrast(pdev, c->value);
570 case V4L2_CID_SATURATION:
571 ret = pwc_set_saturation(pdev, c->value);
577 ret = pwc_set_gamma(pdev, c->value);
581 case V4L2_CID_RED_BALANCE:
583 ret = pwc_set_red_gain(pdev, c->value);
587 case V4L2_CID_BLUE_BALANCE:
589 ret = pwc_set_blue_gain(pdev, c->value);
593 case V4L2_CID_AUTO_WHITE_BALANCE:
594 c->value = (c->value == 0)?PWC_WB_MANUAL:PWC_WB_AUTO;
595 ret = pwc_set_awb(pdev, c->value);
599 case V4L2_CID_EXPOSURE:
601 ret = pwc_set_shutter_speed(pdev, c->value?0:1, c->value);
605 case V4L2_CID_AUTOGAIN:
606 /* autogain off means nothing without a gain */
609 ret = pwc_set_agc(pdev, c->value, 0);
615 ret = pwc_set_agc(pdev, 0, c->value);
619 case V4L2_CID_PRIVATE_SAVE_USER:
620 if (pwc_save_user(pdev))
623 case V4L2_CID_PRIVATE_RESTORE_USER:
624 if (pwc_restore_user(pdev))
627 case V4L2_CID_PRIVATE_RESTORE_FACTORY:
628 if (pwc_restore_factory(pdev))
631 case V4L2_CID_PRIVATE_COLOUR_MODE:
632 ret = pwc_set_colour_mode(pdev, c->value);
636 case V4L2_CID_PRIVATE_AUTOCONTOUR:
637 c->value=(c->value == 1)?-1:0;
638 ret = pwc_set_contour(pdev, c->value);
642 case V4L2_CID_PRIVATE_CONTOUR:
644 ret = pwc_set_contour(pdev, c->value);
648 case V4L2_CID_PRIVATE_BACKLIGHT:
649 ret = pwc_set_backlight(pdev, c->value);
653 case V4L2_CID_PRIVATE_FLICKERLESS:
654 ret = pwc_set_flicker(pdev, c->value);
657 case V4L2_CID_PRIVATE_NOISE_REDUCTION:
658 ret = pwc_set_dynamic_noise(pdev, c->value);
667 case VIDIOC_ENUM_FMT:
669 struct v4l2_fmtdesc *f = arg;
672 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
675 /* We only support two format: the raw format, and YUV */
677 memset(f,0,sizeof(struct v4l2_fmtdesc));
678 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
684 f->pixelformat = pdev->type<=646?V4L2_PIX_FMT_PWC1:V4L2_PIX_FMT_PWC2;
685 f->flags = V4L2_FMT_FLAG_COMPRESSED;
686 strlcpy(f->description,"Raw Philips Webcam",sizeof(f->description));
689 f->pixelformat = V4L2_PIX_FMT_YUV420;
690 strlcpy(f->description,"4:2:0, planar, Y-Cb-Cr",sizeof(f->description));
700 struct v4l2_format *f = arg;
702 PWC_DEBUG_IOCTL("ioctl(VIDIOC_G_FMT) return size %dx%d\n",pdev->image.x,pdev->image.y);
703 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
706 pwc_vidioc_fill_fmt(pdev, f);
712 return pwc_vidioc_try_fmt(pdev, arg);
715 return pwc_vidioc_set_fmt(pdev, arg);
719 v4l2_std_id *std = arg;
720 *std = V4L2_STD_UNKNOWN;
726 v4l2_std_id *std = arg;
727 if (*std != V4L2_STD_UNKNOWN)
734 struct v4l2_standard *std = arg;
737 std->id = V4L2_STD_UNKNOWN;
738 strlcpy(std->name, "webcam", sizeof(std->name));
744 struct v4l2_requestbuffers *rb = arg;
747 PWC_DEBUG_IOCTL("ioctl(VIDIOC_REQBUFS) count=%d\n",rb->count);
748 if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
750 if (rb->memory != V4L2_MEMORY_MMAP)
753 nbuffers = rb->count;
756 else if (nbuffers > pwc_mbufs)
757 nbuffers = pwc_mbufs;
758 /* Force to use our # of buffers */
759 rb->count = pwc_mbufs;
763 case VIDIOC_QUERYBUF:
765 struct v4l2_buffer *buf = arg;
768 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) index=%d\n",buf->index);
769 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
770 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad type\n");
773 if (buf->memory != V4L2_MEMORY_MMAP) {
774 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad memory type\n");
778 if (index < 0 || index >= pwc_mbufs) {
779 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad index %d\n", buf->index);
783 memset(buf, 0, sizeof(struct v4l2_buffer));
784 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
786 buf->m.offset = index * pdev->len_per_image;
787 if (pdev->pixfmt != V4L2_PIX_FMT_YUV420)
788 buf->bytesused = pdev->frame_size + sizeof(struct pwc_raw_frame);
790 buf->bytesused = pdev->view.size;
791 buf->field = V4L2_FIELD_NONE;
792 buf->memory = V4L2_MEMORY_MMAP;
793 //buf->flags = V4L2_BUF_FLAG_MAPPED;
794 buf->length = pdev->len_per_image;
796 PWC_DEBUG_READ("VIDIOC_QUERYBUF: index=%d\n",buf->index);
797 PWC_DEBUG_READ("VIDIOC_QUERYBUF: m.offset=%d\n",buf->m.offset);
798 PWC_DEBUG_READ("VIDIOC_QUERYBUF: bytesused=%d\n",buf->bytesused);
805 struct v4l2_buffer *buf = arg;
807 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QBUF) index=%d\n",buf->index);
808 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
810 if (buf->memory != V4L2_MEMORY_MMAP)
812 if (buf->index >= pwc_mbufs)
815 buf->flags |= V4L2_BUF_FLAG_QUEUED;
816 buf->flags &= ~V4L2_BUF_FLAG_DONE;
823 struct v4l2_buffer *buf = arg;
826 PWC_DEBUG_IOCTL("ioctl(VIDIOC_DQBUF)\n");
828 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
831 /* Add ourselves to the frame wait-queue.
833 FIXME: needs auditing for safety.
834 QUESTION: In what respect? I think that using the
837 add_wait_queue(&pdev->frameq, &wait);
838 while (pdev->full_frames == NULL) {
839 if (pdev->error_status) {
840 remove_wait_queue(&pdev->frameq, &wait);
841 set_current_state(TASK_RUNNING);
842 return -pdev->error_status;
845 if (signal_pending(current)) {
846 remove_wait_queue(&pdev->frameq, &wait);
847 set_current_state(TASK_RUNNING);
851 set_current_state(TASK_INTERRUPTIBLE);
853 remove_wait_queue(&pdev->frameq, &wait);
854 set_current_state(TASK_RUNNING);
856 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: frame ready.\n");
857 /* Decompress data in pdev->images[pdev->fill_image] */
858 ret = pwc_handle_frame(pdev);
861 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: after pwc_handle_frame\n");
863 buf->index = pdev->fill_image;
864 if (pdev->pixfmt != V4L2_PIX_FMT_YUV420)
865 buf->bytesused = pdev->frame_size + sizeof(struct pwc_raw_frame);
867 buf->bytesused = pdev->view.size;
868 buf->flags = V4L2_BUF_FLAG_MAPPED;
869 buf->field = V4L2_FIELD_NONE;
870 do_gettimeofday(&buf->timestamp);
872 buf->memory = V4L2_MEMORY_MMAP;
873 buf->m.offset = pdev->fill_image * pdev->len_per_image;
874 buf->length = pdev->len_per_image;
875 pwc_next_image(pdev);
877 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->index=%d\n",buf->index);
878 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->length=%d\n",buf->length);
879 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: m.offset=%d\n",buf->m.offset);
880 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: bytesused=%d\n",buf->bytesused);
881 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: leaving\n");
886 case VIDIOC_STREAMON:
888 return pwc_isoc_init(pdev);
891 case VIDIOC_STREAMOFF:
893 pwc_isoc_cleanup(pdev);
897 case VIDIOC_ENUM_FRAMESIZES:
899 struct v4l2_frmsizeenum *fsize = arg;
900 unsigned int i = 0, index = fsize->index;
902 if (fsize->pixel_format == V4L2_PIX_FMT_YUV420) {
903 for (i = 0; i < PSZ_MAX; i++) {
904 if (pdev->image_mask & (1UL << i)) {
906 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
907 fsize->discrete.width = pwc_image_sizes[i].x;
908 fsize->discrete.height = pwc_image_sizes[i].y;
913 } else if (fsize->index == 0 &&
914 ((fsize->pixel_format == V4L2_PIX_FMT_PWC1 && DEVICE_USE_CODEC1(pdev->type)) ||
915 (fsize->pixel_format == V4L2_PIX_FMT_PWC2 && DEVICE_USE_CODEC23(pdev->type)))) {
917 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
918 fsize->discrete.width = pdev->abs_max.x;
919 fsize->discrete.height = pdev->abs_max.y;
925 case VIDIOC_ENUM_FRAMEINTERVALS:
927 struct v4l2_frmivalenum *fival = arg;
931 for (i = 0; i < PSZ_MAX; i++) {
932 if (pwc_image_sizes[i].x == fival->width &&
933 pwc_image_sizes[i].y == fival->height) {
939 /* TODO: Support raw format */
940 if (size < 0 || fival->pixel_format != V4L2_PIX_FMT_YUV420) {
944 i = pwc_get_fps(pdev, fival->index, size);
948 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
949 fival->discrete.numerator = 1;
950 fival->discrete.denominator = i;
956 return pwc_ioctl(pdev, cmd, arg);
961 /* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */