tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * vivid-vid-common.c - common video support functions.
3 *
4 * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
5 *
6 * This program is free software; you may redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
11 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
12 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
13 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
14 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
15 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
16 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17 * SOFTWARE.
18 */
19
20#include <linux/errno.h>
21#include <linux/kernel.h>
22#include <linux/sched.h>
23#include <linux/videodev2.h>
24#include <linux/v4l2-dv-timings.h>
25#include <media/v4l2-common.h>
26#include <media/v4l2-event.h>
27#include <media/v4l2-dv-timings.h>
28
29#include "vivid-core.h"
30#include "vivid-vid-common.h"
31
32const struct v4l2_dv_timings_cap vivid_dv_timings_cap = {
33 .type = V4L2_DV_BT_656_1120,
34 /* keep this initialization for compatibility with GCC < 4.4.6 */
35 .reserved = { 0 },
36 V4L2_INIT_BT_TIMINGS(0, MAX_WIDTH, 0, MAX_HEIGHT, 14000000, 775000000,
37 V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
38 V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF,
39 V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_INTERLACED)
40};
41
42/* ------------------------------------------------------------------
43 Basic structures
44 ------------------------------------------------------------------*/
45
46struct vivid_fmt vivid_formats[] = {
47 {
48 .fourcc = V4L2_PIX_FMT_YUYV,
49 .vdownsampling = { 1 },
50 .bit_depth = { 16 },
51 .is_yuv = true,
52 .planes = 1,
53 .buffers = 1,
54 .data_offset = { PLANE0_DATA_OFFSET },
55 },
56 {
57 .fourcc = V4L2_PIX_FMT_UYVY,
58 .vdownsampling = { 1 },
59 .bit_depth = { 16 },
60 .is_yuv = true,
61 .planes = 1,
62 .buffers = 1,
63 },
64 {
65 .fourcc = V4L2_PIX_FMT_YVYU,
66 .vdownsampling = { 1 },
67 .bit_depth = { 16 },
68 .is_yuv = true,
69 .planes = 1,
70 .buffers = 1,
71 },
72 {
73 .fourcc = V4L2_PIX_FMT_VYUY,
74 .vdownsampling = { 1 },
75 .bit_depth = { 16 },
76 .is_yuv = true,
77 .planes = 1,
78 .buffers = 1,
79 },
80 {
81 .fourcc = V4L2_PIX_FMT_YUV422P,
82 .vdownsampling = { 1, 1, 1 },
83 .bit_depth = { 8, 4, 4 },
84 .is_yuv = true,
85 .planes = 3,
86 .buffers = 1,
87 },
88 {
89 .fourcc = V4L2_PIX_FMT_YUV420,
90 .vdownsampling = { 1, 2, 2 },
91 .bit_depth = { 8, 4, 4 },
92 .is_yuv = true,
93 .planes = 3,
94 .buffers = 1,
95 },
96 {
97 .fourcc = V4L2_PIX_FMT_YVU420,
98 .vdownsampling = { 1, 2, 2 },
99 .bit_depth = { 8, 4, 4 },
100 .is_yuv = true,
101 .planes = 3,
102 .buffers = 1,
103 },
104 {
105 .fourcc = V4L2_PIX_FMT_NV12,
106 .vdownsampling = { 1, 2 },
107 .bit_depth = { 8, 8 },
108 .is_yuv = true,
109 .planes = 2,
110 .buffers = 1,
111 },
112 {
113 .fourcc = V4L2_PIX_FMT_NV21,
114 .vdownsampling = { 1, 2 },
115 .bit_depth = { 8, 8 },
116 .is_yuv = true,
117 .planes = 2,
118 .buffers = 1,
119 },
120 {
121 .fourcc = V4L2_PIX_FMT_NV16,
122 .vdownsampling = { 1, 1 },
123 .bit_depth = { 8, 8 },
124 .is_yuv = true,
125 .planes = 2,
126 .buffers = 1,
127 },
128 {
129 .fourcc = V4L2_PIX_FMT_NV61,
130 .vdownsampling = { 1, 1 },
131 .bit_depth = { 8, 8 },
132 .is_yuv = true,
133 .planes = 2,
134 .buffers = 1,
135 },
136 {
137 .fourcc = V4L2_PIX_FMT_NV24,
138 .vdownsampling = { 1, 1 },
139 .bit_depth = { 8, 16 },
140 .is_yuv = true,
141 .planes = 2,
142 .buffers = 1,
143 },
144 {
145 .fourcc = V4L2_PIX_FMT_NV42,
146 .vdownsampling = { 1, 1 },
147 .bit_depth = { 8, 16 },
148 .is_yuv = true,
149 .planes = 2,
150 .buffers = 1,
151 },
152 {
153 .fourcc = V4L2_PIX_FMT_YUV555, /* uuuvvvvv ayyyyyuu */
154 .vdownsampling = { 1 },
155 .bit_depth = { 16 },
156 .planes = 1,
157 .buffers = 1,
158 .alpha_mask = 0x8000,
159 },
160 {
161 .fourcc = V4L2_PIX_FMT_YUV565, /* uuuvvvvv yyyyyuuu */
162 .vdownsampling = { 1 },
163 .bit_depth = { 16 },
164 .planes = 1,
165 .buffers = 1,
166 },
167 {
168 .fourcc = V4L2_PIX_FMT_YUV444, /* uuuuvvvv aaaayyyy */
169 .vdownsampling = { 1 },
170 .bit_depth = { 16 },
171 .planes = 1,
172 .buffers = 1,
173 .alpha_mask = 0xf000,
174 },
175 {
176 .fourcc = V4L2_PIX_FMT_YUV32, /* ayuv */
177 .vdownsampling = { 1 },
178 .bit_depth = { 32 },
179 .planes = 1,
180 .buffers = 1,
181 .alpha_mask = 0x000000ff,
182 },
183 {
184 .fourcc = V4L2_PIX_FMT_GREY,
185 .vdownsampling = { 1 },
186 .bit_depth = { 8 },
187 .is_yuv = true,
188 .planes = 1,
189 .buffers = 1,
190 },
191 {
192 .fourcc = V4L2_PIX_FMT_Y16,
193 .vdownsampling = { 1 },
194 .bit_depth = { 16 },
195 .is_yuv = true,
196 .planes = 1,
197 .buffers = 1,
198 },
199 {
200 .fourcc = V4L2_PIX_FMT_Y16_BE,
201 .vdownsampling = { 1 },
202 .bit_depth = { 16 },
203 .is_yuv = true,
204 .planes = 1,
205 .buffers = 1,
206 },
207 {
208 .fourcc = V4L2_PIX_FMT_RGB332, /* rrrgggbb */
209 .vdownsampling = { 1 },
210 .bit_depth = { 8 },
211 .planes = 1,
212 .buffers = 1,
213 },
214 {
215 .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
216 .vdownsampling = { 1 },
217 .bit_depth = { 16 },
218 .planes = 1,
219 .buffers = 1,
220 .can_do_overlay = true,
221 },
222 {
223 .fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
224 .vdownsampling = { 1 },
225 .bit_depth = { 16 },
226 .planes = 1,
227 .buffers = 1,
228 .can_do_overlay = true,
229 },
230 {
231 .fourcc = V4L2_PIX_FMT_RGB444, /* xxxxrrrr ggggbbbb */
232 .vdownsampling = { 1 },
233 .bit_depth = { 16 },
234 .planes = 1,
235 .buffers = 1,
236 },
237 {
238 .fourcc = V4L2_PIX_FMT_XRGB444, /* xxxxrrrr ggggbbbb */
239 .vdownsampling = { 1 },
240 .bit_depth = { 16 },
241 .planes = 1,
242 .buffers = 1,
243 },
244 {
245 .fourcc = V4L2_PIX_FMT_ARGB444, /* aaaarrrr ggggbbbb */
246 .vdownsampling = { 1 },
247 .bit_depth = { 16 },
248 .planes = 1,
249 .buffers = 1,
250 .alpha_mask = 0x00f0,
251 },
252 {
253 .fourcc = V4L2_PIX_FMT_RGB555, /* gggbbbbb xrrrrrgg */
254 .vdownsampling = { 1 },
255 .bit_depth = { 16 },
256 .planes = 1,
257 .buffers = 1,
258 .can_do_overlay = true,
259 },
260 {
261 .fourcc = V4L2_PIX_FMT_XRGB555, /* gggbbbbb xrrrrrgg */
262 .vdownsampling = { 1 },
263 .bit_depth = { 16 },
264 .planes = 1,
265 .buffers = 1,
266 .can_do_overlay = true,
267 },
268 {
269 .fourcc = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
270 .vdownsampling = { 1 },
271 .bit_depth = { 16 },
272 .planes = 1,
273 .buffers = 1,
274 .can_do_overlay = true,
275 .alpha_mask = 0x8000,
276 },
277 {
278 .fourcc = V4L2_PIX_FMT_RGB555X, /* xrrrrrgg gggbbbbb */
279 .vdownsampling = { 1 },
280 .bit_depth = { 16 },
281 .planes = 1,
282 .buffers = 1,
283 },
284 {
285 .fourcc = V4L2_PIX_FMT_XRGB555X, /* xrrrrrgg gggbbbbb */
286 .vdownsampling = { 1 },
287 .bit_depth = { 16 },
288 .planes = 1,
289 .buffers = 1,
290 },
291 {
292 .fourcc = V4L2_PIX_FMT_ARGB555X, /* arrrrrgg gggbbbbb */
293 .vdownsampling = { 1 },
294 .bit_depth = { 16 },
295 .planes = 1,
296 .buffers = 1,
297 .alpha_mask = 0x0080,
298 },
299 {
300 .fourcc = V4L2_PIX_FMT_RGB24, /* rgb */
301 .vdownsampling = { 1 },
302 .bit_depth = { 24 },
303 .planes = 1,
304 .buffers = 1,
305 },
306 {
307 .fourcc = V4L2_PIX_FMT_BGR24, /* bgr */
308 .vdownsampling = { 1 },
309 .bit_depth = { 24 },
310 .planes = 1,
311 .buffers = 1,
312 },
313 {
314 .fourcc = V4L2_PIX_FMT_BGR666, /* bbbbbbgg ggggrrrr rrxxxxxx */
315 .vdownsampling = { 1 },
316 .bit_depth = { 32 },
317 .planes = 1,
318 .buffers = 1,
319 },
320 {
321 .fourcc = V4L2_PIX_FMT_RGB32, /* xrgb */
322 .vdownsampling = { 1 },
323 .bit_depth = { 32 },
324 .planes = 1,
325 .buffers = 1,
326 },
327 {
328 .fourcc = V4L2_PIX_FMT_BGR32, /* bgrx */
329 .vdownsampling = { 1 },
330 .bit_depth = { 32 },
331 .planes = 1,
332 .buffers = 1,
333 },
334 {
335 .fourcc = V4L2_PIX_FMT_XRGB32, /* xrgb */
336 .vdownsampling = { 1 },
337 .bit_depth = { 32 },
338 .planes = 1,
339 .buffers = 1,
340 },
341 {
342 .fourcc = V4L2_PIX_FMT_XBGR32, /* bgrx */
343 .vdownsampling = { 1 },
344 .bit_depth = { 32 },
345 .planes = 1,
346 .buffers = 1,
347 },
348 {
349 .fourcc = V4L2_PIX_FMT_ARGB32, /* argb */
350 .vdownsampling = { 1 },
351 .bit_depth = { 32 },
352 .planes = 1,
353 .buffers = 1,
354 .alpha_mask = 0x000000ff,
355 },
356 {
357 .fourcc = V4L2_PIX_FMT_ABGR32, /* bgra */
358 .vdownsampling = { 1 },
359 .bit_depth = { 32 },
360 .planes = 1,
361 .buffers = 1,
362 .alpha_mask = 0xff000000,
363 },
364 {
365 .fourcc = V4L2_PIX_FMT_SBGGR8, /* Bayer BG/GR */
366 .vdownsampling = { 1 },
367 .bit_depth = { 8 },
368 .planes = 1,
369 .buffers = 1,
370 },
371 {
372 .fourcc = V4L2_PIX_FMT_SGBRG8, /* Bayer GB/RG */
373 .vdownsampling = { 1 },
374 .bit_depth = { 8 },
375 .planes = 1,
376 .buffers = 1,
377 },
378 {
379 .fourcc = V4L2_PIX_FMT_SGRBG8, /* Bayer GR/BG */
380 .vdownsampling = { 1 },
381 .bit_depth = { 8 },
382 .planes = 1,
383 .buffers = 1,
384 },
385 {
386 .fourcc = V4L2_PIX_FMT_SRGGB8, /* Bayer RG/GB */
387 .vdownsampling = { 1 },
388 .bit_depth = { 8 },
389 .planes = 1,
390 .buffers = 1,
391 },
392 {
393 .fourcc = V4L2_PIX_FMT_NV16M,
394 .vdownsampling = { 1, 1 },
395 .bit_depth = { 8, 8 },
396 .is_yuv = true,
397 .planes = 2,
398 .buffers = 2,
399 .data_offset = { PLANE0_DATA_OFFSET, 0 },
400 },
401 {
402 .fourcc = V4L2_PIX_FMT_NV61M,
403 .vdownsampling = { 1, 1 },
404 .bit_depth = { 8, 8 },
405 .is_yuv = true,
406 .planes = 2,
407 .buffers = 2,
408 .data_offset = { 0, PLANE0_DATA_OFFSET },
409 },
410 {
411 .fourcc = V4L2_PIX_FMT_YUV420M,
412 .vdownsampling = { 1, 2, 2 },
413 .bit_depth = { 8, 4, 4 },
414 .is_yuv = true,
415 .planes = 3,
416 .buffers = 3,
417 },
418 {
419 .fourcc = V4L2_PIX_FMT_YVU420M,
420 .vdownsampling = { 1, 2, 2 },
421 .bit_depth = { 8, 4, 4 },
422 .is_yuv = true,
423 .planes = 3,
424 .buffers = 3,
425 },
426 {
427 .fourcc = V4L2_PIX_FMT_NV12M,
428 .vdownsampling = { 1, 2 },
429 .bit_depth = { 8, 8 },
430 .is_yuv = true,
431 .planes = 2,
432 .buffers = 2,
433 },
434 {
435 .fourcc = V4L2_PIX_FMT_NV21M,
436 .vdownsampling = { 1, 2 },
437 .bit_depth = { 8, 8 },
438 .is_yuv = true,
439 .planes = 2,
440 .buffers = 2,
441 },
442};
443
444/* There are 6 multiplanar formats in the list */
445#define VIVID_MPLANAR_FORMATS 6
446
447const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat)
448{
449 const struct vivid_fmt *fmt;
450 unsigned k;
451
452 for (k = 0; k < ARRAY_SIZE(vivid_formats); k++) {
453 fmt = &vivid_formats[k];
454 if (fmt->fourcc == pixelformat)
455 if (fmt->buffers == 1 || dev->multiplanar)
456 return fmt;
457 }
458
459 return NULL;
460}
461
462bool vivid_vid_can_loop(struct vivid_dev *dev)
463{
464 if (dev->src_rect.width != dev->sink_rect.width ||
465 dev->src_rect.height != dev->sink_rect.height)
466 return false;
467 if (dev->fmt_cap->fourcc != dev->fmt_out->fourcc)
468 return false;
469 if (dev->field_cap != dev->field_out)
470 return false;
471 /*
472 * While this can be supported, it is just too much work
473 * to actually implement.
474 */
475 if (dev->field_cap == V4L2_FIELD_SEQ_TB ||
476 dev->field_cap == V4L2_FIELD_SEQ_BT)
477 return false;
478 if (vivid_is_svid_cap(dev) && vivid_is_svid_out(dev)) {
479 if (!(dev->std_cap & V4L2_STD_525_60) !=
480 !(dev->std_out & V4L2_STD_525_60))
481 return false;
482 return true;
483 }
484 if (vivid_is_hdmi_cap(dev) && vivid_is_hdmi_out(dev))
485 return true;
486 return false;
487}
488
489void vivid_send_source_change(struct vivid_dev *dev, unsigned type)
490{
491 struct v4l2_event ev = {
492 .type = V4L2_EVENT_SOURCE_CHANGE,
493 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
494 };
495 unsigned i;
496
497 for (i = 0; i < dev->num_inputs; i++) {
498 ev.id = i;
499 if (dev->input_type[i] == type) {
500 if (video_is_registered(&dev->vid_cap_dev) && dev->has_vid_cap)
501 v4l2_event_queue(&dev->vid_cap_dev, &ev);
502 if (video_is_registered(&dev->vbi_cap_dev) && dev->has_vbi_cap)
503 v4l2_event_queue(&dev->vbi_cap_dev, &ev);
504 }
505 }
506}
507
508/*
509 * Conversion function that converts a single-planar format to a
510 * single-plane multiplanar format.
511 */
512void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt)
513{
514 struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp;
515 struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
516 const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix;
517 bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT;
518
519 memset(mp->reserved, 0, sizeof(mp->reserved));
520 mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
521 V4L2_CAP_VIDEO_CAPTURE_MPLANE;
522 mp->width = pix->width;
523 mp->height = pix->height;
524 mp->pixelformat = pix->pixelformat;
525 mp->field = pix->field;
526 mp->colorspace = pix->colorspace;
527 mp->xfer_func = pix->xfer_func;
528 mp->ycbcr_enc = pix->ycbcr_enc;
529 mp->quantization = pix->quantization;
530 mp->num_planes = 1;
531 mp->flags = pix->flags;
532 ppix->sizeimage = pix->sizeimage;
533 ppix->bytesperline = pix->bytesperline;
534 memset(ppix->reserved, 0, sizeof(ppix->reserved));
535}
536
537int fmt_sp2mp_func(struct file *file, void *priv,
538 struct v4l2_format *f, fmtfunc func)
539{
540 struct v4l2_format fmt;
541 struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp;
542 struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
543 struct v4l2_pix_format *pix = &f->fmt.pix;
544 int ret;
545
546 /* Converts to a mplane format */
547 fmt_sp2mp(f, &fmt);
548 /* Passes it to the generic mplane format function */
549 ret = func(file, priv, &fmt);
550 /* Copies back the mplane data to the single plane format */
551 pix->width = mp->width;
552 pix->height = mp->height;
553 pix->pixelformat = mp->pixelformat;
554 pix->field = mp->field;
555 pix->colorspace = mp->colorspace;
556 pix->xfer_func = mp->xfer_func;
557 pix->ycbcr_enc = mp->ycbcr_enc;
558 pix->quantization = mp->quantization;
559 pix->sizeimage = ppix->sizeimage;
560 pix->bytesperline = ppix->bytesperline;
561 pix->flags = mp->flags;
562 return ret;
563}
564
565/* v4l2_rect helper function: copy the width/height values */
566void rect_set_size_to(struct v4l2_rect *r, const struct v4l2_rect *size)
567{
568 r->width = size->width;
569 r->height = size->height;
570}
571
572/* v4l2_rect helper function: width and height of r should be >= min_size */
573void rect_set_min_size(struct v4l2_rect *r, const struct v4l2_rect *min_size)
574{
575 if (r->width < min_size->width)
576 r->width = min_size->width;
577 if (r->height < min_size->height)
578 r->height = min_size->height;
579}
580
581/* v4l2_rect helper function: width and height of r should be <= max_size */
582void rect_set_max_size(struct v4l2_rect *r, const struct v4l2_rect *max_size)
583{
584 if (r->width > max_size->width)
585 r->width = max_size->width;
586 if (r->height > max_size->height)
587 r->height = max_size->height;
588}
589
590/* v4l2_rect helper function: r should be inside boundary */
591void rect_map_inside(struct v4l2_rect *r, const struct v4l2_rect *boundary)
592{
593 rect_set_max_size(r, boundary);
594 if (r->left < boundary->left)
595 r->left = boundary->left;
596 if (r->top < boundary->top)
597 r->top = boundary->top;
598 if (r->left + r->width > boundary->width)
599 r->left = boundary->width - r->width;
600 if (r->top + r->height > boundary->height)
601 r->top = boundary->height - r->height;
602}
603
604/* v4l2_rect helper function: return true if r1 has the same size as r2 */
605bool rect_same_size(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
606{
607 return r1->width == r2->width && r1->height == r2->height;
608}
609
610/* v4l2_rect helper function: calculate the intersection of two rects */
611struct v4l2_rect rect_intersect(const struct v4l2_rect *a, const struct v4l2_rect *b)
612{
613 struct v4l2_rect r;
614 int right, bottom;
615
616 r.top = max(a->top, b->top);
617 r.left = max(a->left, b->left);
618 bottom = min(a->top + a->height, b->top + b->height);
619 right = min(a->left + a->width, b->left + b->width);
620 r.height = max(0, bottom - r.top);
621 r.width = max(0, right - r.left);
622 return r;
623}
624
625/*
626 * v4l2_rect helper function: scale rect r by to->width / from->width and
627 * to->height / from->height.
628 */
629void rect_scale(struct v4l2_rect *r, const struct v4l2_rect *from,
630 const struct v4l2_rect *to)
631{
632 if (from->width == 0 || from->height == 0) {
633 r->left = r->top = r->width = r->height = 0;
634 return;
635 }
636 r->left = (((r->left - from->left) * to->width) / from->width) & ~1;
637 r->width = ((r->width * to->width) / from->width) & ~1;
638 r->top = ((r->top - from->top) * to->height) / from->height;
639 r->height = (r->height * to->height) / from->height;
640}
641
642bool rect_overlap(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
643{
644 /*
645 * IF the left side of r1 is to the right of the right side of r2 OR
646 * the left side of r2 is to the right of the right side of r1 THEN
647 * they do not overlap.
648 */
649 if (r1->left >= r2->left + r2->width ||
650 r2->left >= r1->left + r1->width)
651 return false;
652 /*
653 * IF the top side of r1 is below the bottom of r2 OR
654 * the top side of r2 is below the bottom of r1 THEN
655 * they do not overlap.
656 */
657 if (r1->top >= r2->top + r2->height ||
658 r2->top >= r1->top + r1->height)
659 return false;
660 return true;
661}
662int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r)
663{
664 unsigned w = r->width;
665 unsigned h = r->height;
666
667 /* sanitize w and h in case someone passes ~0 as the value */
668 w &= 0xffff;
669 h &= 0xffff;
670 if (!(flags & V4L2_SEL_FLAG_LE)) {
671 w++;
672 h++;
673 if (w < 2)
674 w = 2;
675 if (h < 2)
676 h = 2;
677 }
678 if (!(flags & V4L2_SEL_FLAG_GE)) {
679 if (w > MAX_WIDTH)
680 w = MAX_WIDTH;
681 if (h > MAX_HEIGHT)
682 h = MAX_HEIGHT;
683 }
684 w = w & ~1;
685 h = h & ~1;
686 if (w < 2 || h < 2)
687 return -ERANGE;
688 if (w > MAX_WIDTH || h > MAX_HEIGHT)
689 return -ERANGE;
690 if (r->top < 0)
691 r->top = 0;
692 if (r->left < 0)
693 r->left = 0;
694 /* sanitize left and top in case someone passes ~0 as the value */
695 r->left &= 0xfffe;
696 r->top &= 0xfffe;
697 if (r->left + w > MAX_WIDTH)
698 r->left = MAX_WIDTH - w;
699 if (r->top + h > MAX_HEIGHT)
700 r->top = MAX_HEIGHT - h;
701 if ((flags & (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE)) ==
702 (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE) &&
703 (r->width != w || r->height != h))
704 return -ERANGE;
705 r->width = w;
706 r->height = h;
707 return 0;
708}
709
710int vivid_enum_fmt_vid(struct file *file, void *priv,
711 struct v4l2_fmtdesc *f)
712{
713 struct vivid_dev *dev = video_drvdata(file);
714 const struct vivid_fmt *fmt;
715
716 if (f->index >= ARRAY_SIZE(vivid_formats) -
717 (dev->multiplanar ? 0 : VIVID_MPLANAR_FORMATS))
718 return -EINVAL;
719
720 fmt = &vivid_formats[f->index];
721
722 f->pixelformat = fmt->fourcc;
723 return 0;
724}
725
726int vidioc_enum_fmt_vid_mplane(struct file *file, void *priv,
727 struct v4l2_fmtdesc *f)
728{
729 struct vivid_dev *dev = video_drvdata(file);
730
731 if (!dev->multiplanar)
732 return -ENOTTY;
733 return vivid_enum_fmt_vid(file, priv, f);
734}
735
736int vidioc_enum_fmt_vid(struct file *file, void *priv,
737 struct v4l2_fmtdesc *f)
738{
739 struct vivid_dev *dev = video_drvdata(file);
740
741 if (dev->multiplanar)
742 return -ENOTTY;
743 return vivid_enum_fmt_vid(file, priv, f);
744}
745
746int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
747{
748 struct vivid_dev *dev = video_drvdata(file);
749 struct video_device *vdev = video_devdata(file);
750
751 if (vdev->vfl_dir == VFL_DIR_RX) {
752 if (!vivid_is_sdtv_cap(dev))
753 return -ENODATA;
754 *id = dev->std_cap;
755 } else {
756 if (!vivid_is_svid_out(dev))
757 return -ENODATA;
758 *id = dev->std_out;
759 }
760 return 0;
761}
762
763int vidioc_g_dv_timings(struct file *file, void *_fh,
764 struct v4l2_dv_timings *timings)
765{
766 struct vivid_dev *dev = video_drvdata(file);
767 struct video_device *vdev = video_devdata(file);
768
769 if (vdev->vfl_dir == VFL_DIR_RX) {
770 if (!vivid_is_hdmi_cap(dev))
771 return -ENODATA;
772 *timings = dev->dv_timings_cap;
773 } else {
774 if (!vivid_is_hdmi_out(dev))
775 return -ENODATA;
776 *timings = dev->dv_timings_out;
777 }
778 return 0;
779}
780
781int vidioc_enum_dv_timings(struct file *file, void *_fh,
782 struct v4l2_enum_dv_timings *timings)
783{
784 struct vivid_dev *dev = video_drvdata(file);
785 struct video_device *vdev = video_devdata(file);
786
787 if (vdev->vfl_dir == VFL_DIR_RX) {
788 if (!vivid_is_hdmi_cap(dev))
789 return -ENODATA;
790 } else {
791 if (!vivid_is_hdmi_out(dev))
792 return -ENODATA;
793 }
794 return v4l2_enum_dv_timings_cap(timings, &vivid_dv_timings_cap,
795 NULL, NULL);
796}
797
798int vidioc_dv_timings_cap(struct file *file, void *_fh,
799 struct v4l2_dv_timings_cap *cap)
800{
801 struct vivid_dev *dev = video_drvdata(file);
802 struct video_device *vdev = video_devdata(file);
803
804 if (vdev->vfl_dir == VFL_DIR_RX) {
805 if (!vivid_is_hdmi_cap(dev))
806 return -ENODATA;
807 } else {
808 if (!vivid_is_hdmi_out(dev))
809 return -ENODATA;
810 }
811 *cap = vivid_dv_timings_cap;
812 return 0;
813}
814
815int vidioc_g_edid(struct file *file, void *_fh,
816 struct v4l2_edid *edid)
817{
818 struct vivid_dev *dev = video_drvdata(file);
819 struct video_device *vdev = video_devdata(file);
820
821 memset(edid->reserved, 0, sizeof(edid->reserved));
822 if (vdev->vfl_dir == VFL_DIR_RX) {
823 if (edid->pad >= dev->num_inputs)
824 return -EINVAL;
825 if (dev->input_type[edid->pad] != HDMI)
826 return -EINVAL;
827 } else {
828 if (edid->pad >= dev->num_outputs)
829 return -EINVAL;
830 if (dev->output_type[edid->pad] != HDMI)
831 return -EINVAL;
832 }
833 if (edid->start_block == 0 && edid->blocks == 0) {
834 edid->blocks = dev->edid_blocks;
835 return 0;
836 }
837 if (dev->edid_blocks == 0)
838 return -ENODATA;
839 if (edid->start_block >= dev->edid_blocks)
840 return -EINVAL;
841 if (edid->start_block + edid->blocks > dev->edid_blocks)
842 edid->blocks = dev->edid_blocks - edid->start_block;
843 memcpy(edid->edid, dev->edid, edid->blocks * 128);
844 return 0;
845}